HomeMy WebLinkAboutAGENDA REPORT 2011 0316 CC REG ITEM 09B ITEM 9.13.
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MOORPARK CITY COUNCIL
AGENDA REPORT
TO: Honorable City Council ] =
FROM: David A. Bobardt, Community Development Director
Prepared By: Joseph R. Vacca, Principal Planner
DATE: March 3, 2011 (CC Meeting of 3/16/2011)
SUBJECT: Consider an Update on the Proposed Simi Valley Landfill and
Recycling Center Expansion Project and Final EIR, Located on the
Waste Management Property in the County of Ventura, Adjacent to
the City of Simi Valley's Western City Boundary
BACKGROUND
On November 3, 2010, then Mayor Pro Tern Mikos requested that staff prepare a report
to the City Council regarding the status of the environmental and entitlement application
for the Simi Valley Landfill and Recycling Center, which is proposed on the existing
Waste Management property, located adjacent to the City of Simi Valley's western City
boundary, on the application of Waste Management of California. On December 1,
2010, staff provided the Honorable City Council with an update on the Simi Valley
Landfill and Recycling Center Expansion Project, (Attachment 1).
Members of the City Council raised the following concerns in their discussion:
• The amounts of waste going to the landfill from inside and outside of Ventura
County.
• Not enough mitigation details provided, specifically related to biological impacts
and going beyond a 1:1 replacement ratio of coastal sage scrub habitat for
mitigation and lack of mitigation to address paleontological issues.
• Amounts of open space set aside for buffer and preservation of wildlife corridors.
• Disparity of expanding future waste collection levels and reducing future
recycling levels with the proposed expansion.
In conclusion, the City Council determined to hold off on providing comments until the
Final EIR was completed.
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On February 28, 2011, at the regularly scheduled Simi Valley City Council meeting,
Mayor Huber of Simi Valley announced that the Simi Valley City Council is going to hold
a community forum on March 23, 2011 at 6:30PM to accept testimony on the proposed
Simi Valley Landfill expansion project and Final EIR. The Ventura County Board of
Supervisors are the decision makers on the project and on certification of the EIR.
On March 3, 2011, the Ventura County Planning Commission held a regular meeting
field investigation / site tour of the Simi Valley Landfill and Recycling Center. Staff
attended the meeting and participated in the bus tour of the land fill and listened to
public testimony following the tour. The direction of County Counsel to the County
Planning Commission was that the meeting was a "receive and file" informative meeting
where there was to be no responses provided by the County Planning Commissioners,
County Staff or the applicant, Waste Management, to questions or concerns raised
during public comment. There were approximately 20-25 participants including the
County Planning Commissioners, County staff, the applicant and members of the public.
There were six persons who made public comment, five of which voiced concerns and
opposition to approving the expansion and one of which only had a question on
operating hours.
Dan Klemann, M.A., Manager, Commercial and Industrial Permits Section, County of
Ventura, Resource Management Agency, has indicated that the tentative hearing dates
for the Simi Valley Landfill Expansion Project (Case No. LU07-0048) and Final EIR, are
as follows:
• The Ventura County Planning Commission hearing is scheduled for March 24,
2011 to be held in the City of Simi Valley City Council Chambers at 1:OOPM. The
County Planning Commission will make a recommendation for certification on the
Final EIR and the project, to the County Board of Supervisors
• The County Board of Supervisors' hearing is tentatively scheduled for May 17,
2011.
• The County staff reports for those hearings will be published no later than one
week prior to each hearing.
• The Final EIR is complete and has been published on the Ventura County
Planning Division website.
Dan Klemann indicated that the County staff anticipates recommending approval of the
Reduced Capacity Project Alternative, (RCP Alternative), (Attachment 2). This RCP
Alternative allows expansion of the project from the existing 297 acres to 887 acres with
approximately 519.5 acres to be used as a buffer around the disposal footprint. The
RCP Alternative allows a waste disposal footprint of 367.5 acres in lieu of the 371
requested in the proposed project, but still an increase above the existing 185 acre
footprint. The RCP Alternative reduces the landfill capacity from the requested 123.1
million cubic yards to 108.0 million cubic yards, the existing allowed volume is 43.5
million cubic yards. The estimated site closure date at 6,000 tons per day of municipal
waste, would be the year 2047 with the RCP Alternative, as opposed to the year 2051,
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for the proposed project. The elevation limit of the landfill would be 1,200 feet in total
height with the RCP Alternative instead of the 1,270 feet in total height with the
proposed project. Both the proposed project and the RCP Alternative would allow the
permitted maximum daily vehicle trips, (roundtrip), including the relocation of the GI
Waste hauling facility to the SVLRC from off-site to a total of 1,297 trips. This RCP
Alternative is preferred to the proposed project in that it reduces potential biological
impacts on the Alamos Canyon corridor by having a greater setback than the proposed
project.
DISCUSSION
The proposed project (Ventura County Permit Case No. LU07-0048; Major Modification
No. 8 to CUP-3142) is an expansion of the existing Simi Valley Landfill and Recycling
Center, (SVLRC). The SVLRC's CUP boundary is proposed to be expanded to
encompass 887 acres within which the waste disposal area would be expanded north
and west from its current permitted location to encompass 186 acres of additional waste
disposal area and to increase the total capacity of the landfill from 43.5 to 123.1 million
cubic yards. The amount of Municipal Solid Waste, (MSW) that could be received per
day is proposed to increase from 3,000 tons to 6,000 tons and the amount of recycling
to be reduced from 6,250 tons per day to 3,250 tons per day. The total daily tonnage
(i.e., combined MSW and recyclables) permitted for the facility would not change.
Additionally, several existing ancillary facilities (such as the waste receiving and
recycling facilities) and support facilities (such as administrative offices and
maintenance facilities) would be expanded and new facilities constructed within the
landfill CUP boundary including: office building; heavy equipment and vehicle
maintenance facility; waste hauling yard; material recovery facility/recyclable transfer
facility; public household hazardous waste collection facility; new entrance road, scales,
and scale house; expanded construction and demolition debris recycling processing
area; expanded green waste processing facility; expanded landfill gas-to-energy facility;
and landfill gas-to-liquefied natural gas facility. The proposed project requires a major
modification to the existing CUP (CUP-3142-7) issued by the County of Ventura.
The SVLRC is an existing permitted Class III, non-hazardous MSW landfill owned and
operated by Waste Management. The boundary of the SVLRC, as defined by the CUP-
3142-7 issued by the County of Ventura, encompasses 297 acres of which 185 acres
are used for waste disposal and 112 acres are allocated for buffer area, (Attachment 3).
SVLRC is currently permitted to accept a combined permitted limit of 9,250 tpd which
includes a maximum of 3,000 tpd of disposal material and 6,250 tpd of recyclable
material. Recycling operations include tipping areas for materials such as green waste,
asphalt/concrete, white goods (e.g., refrigerators and stoves), tires, and scrap metal.
The existing facilities at the site include an operation and maintenance facility with fuel
stations; a scale house and scales; a landfill gas flare station; a electric generation
facility; three portable office structures; and a condensate knockout and leachate
treatment facility. The site generally operates 7 AM to 4 PM, 312 days per year, but is
permitted to operate from 6 AM to 8 PM, 365 days per year. Under the terms of the
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current CUP-3142-7, the facility is authorized to operate to a fill elevation of 1,118 feet
above mean sea level and to continue to receive waste until the designated fill
elevations have been reached or until June 2034, whichever comes first.
Project overview
• Expanding the physical limits of the landfill (CUP boundary, landfill footprint, and
elevation), boundary is proposed to be expanded to encompass 887 acres;
• Waste disposal area to be expanded north and west from current location to
encompass 186 acres of additional waste disposal area whereby the landfill
footprint will grow from 185 acres to 371 acres for waste disposal.
• Constructing support/ancillary facility area, expanding existing and construct new
recycling facilities, and expanding existing and constructing new energy
conversion facilities;
• Extending the operating limits and life of the site (increasing the waste disposal
capacity), total capacity of the landfill increases from 43.5 to 130.2 million cubic
yards;
• Increase in municipal solid waste from 3,000 tons to 6,000 tons per day;
• Recycling to be reduced from 6,250 tons per day to 3,250 tons per day;
• Currently there are a maximum of 822 truck trips permitted per day; and
• Landfill currently receives approximately 470 truck trips per day and the
proposed project will generate up to a total of 892 truck trips per day.
On December 28, 2009, staff sent Becky Linder, Ventura County Resource
Management Agency, Planning Division, a comment letter on the Draft Environmental
Impact Report (EIR) for the proposed expansion of the Simi Valley Landfill and
Recycling Center. The staff comments, included in Attachment 4, were specific to
Chapter 3.6 — Visual Resources/Glare and Chapter 3.11 — Traffic and Circulation, and
outlined as follows:
• Mitigation should be included to address impacts to Visual Resources by
requiring the applicant employ contour grading techniques along with
landscaping to make future landfill fill slopes appear more natural from offsite
views.
• A project of this scale could impact the residents and businesses in Moorpark,
based on the potential for additional truck trips through the City.
• Cumulative impact analysis should be analyzed and considered on the traffic,
noise, and air pollution (including odor), and increases from the truck trips in the
context of other proposed projects that would increase truck traffic through
Moorpark.
The comments were intended to raise concerns that should be addressed in the Final
EIR. The proposed response to our comments, also in Attachment 4, essentially
concludes that 1) the contour grading is not part of the project proposal and while it
might reduce somewhat the visual effect of the closed landfill, it would not substantially
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mitigate visual effects, and 2) it would be speculative to attempt to assess truck trips in
Moorpark based on the City's physical distance from the landfill.
On July 27, 2010, new and revised sections of the Draft EIR for the Simi Valley Landfill
expansion were recirculated for public comment with comments due September 9,
2010. The recirculation was limited to new and revised sections of the EIR that
addressed some changes to the operations, air quality calculations (including
greenhouse gas analysis), impact on housing needs from additional employees, and
infeasibility of mitigation related to park/recreation in-lieu fees. Staff did not find that the
updates had a direct effect on the City of Moorpark and staff did not add to previous
comments, originally sent on December 28, 2009. Staff also indicated that the City
would provide comments on the proposal itself after the Final EIR was reviewed.
The Final EIR has been prepared and is available on the Ventura County Planning
Division website. A copy of the Project Description of the Final EIR, dated December
2010, is provided, (Attachment 5). The proposed Final EIR Mitigation Monitoring and
Reporting Program, (MMRP) is also provided, (Attachment 6).
Please note that an errata to the Final EIR was prepared because the Final EIR
originally described the project as consistent with certain County Parks and Recreation
policies through required in-lieu fees for parks and recreation facilities, easements for
the Alamos Canyon Trail, and dedication of land to the Rancho Simi Recreation and
Parks District. The corrected pages now say that the County lacks the authority for
these measures and therefore the project is inconsistent with the County Parks and
Recreation policies, (Attachment 7).
Significant and Unavoidable Impacts
The significant and unavoidable impacts presented in the Final EIR, require the
County's adoption of a Statement of Overriding Considerations, and are provided as
follows:
Land Use/General Plan Goals, Policies, and Programs. The project would likely result in
more than 30 new employees at the SVLRC, which is considered the threshold for
adverse impacts to housing. However, the County lacks the legal authority to impose a
fee or a mechanism to ensure that fees collected would mitigate impacts to housing.
There is as a consequence no feasible mitigation for the housing demand created by
additional project employees. The impact is considered significant and unavoidable.
Air Quality: Proposed project operations would result in an increase in peak daily
emissions that would exceed the VCAPCD daily ROC and NOx emission thresholds
(Impact AQ-1o). Mitigation Measure AQ-3 would reduce operational emissions of ROC
and NOx emissions, but not to less than the VCAPCD threshold of 25 pounds per day.
As a result, ROC and NOx emissions during operations would remain significant and
unavoidable.
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Project construction would result in off-site ambient air pollutant concentrations that
would contribute to exceedances of the following ambient air quality standards: 1) 1-
hour CAAQS for NO2; 2) 24-hour CAAQS and NAAQS for PM10; 3) annual CAAQS for
PM10; and 4) 24-hour NAAQS for PM2.5 (Impact AQ-2c). In addition, project operations
would contribute to exceedances of the annual CAAQS and NAAQS for PM2.5.
Implementation of Mitigation Measures AQ-1 and AQ-2 for construction would reduce
ambient PM10 impacts to below the 24-hour NAAQS for PM10. Implementation of
Mitigation Measures AQ-3 and AQ-4 for operations would reduce ambient PM10 and
PM2.5 impacts to below the NAAQS for 24-hour PM10 and annual PM2.5. Mitigation
Measure AQ-5 would further reduce operations related impacts, but since it is uncertain
the extent to which this measure would offset overall project-related vehicular emissions
it is not possible to calculate what those reductions might be, these exceedances would
remain significant. Greenhouse gas emissions from project operations would exceed
10,000 per year of CO2e even with mitigation. Therefore, all other construction and
operational impacts identified above would remain as significant and unavoidable.
Visual Resources/Glare. Buildout of the proposed waste disposal area (i.e., increased
landfill footprint and elevation) would obstruct views of important visual resources
experienced from State Route 118, resulting in a significant and unavoidable impact
(Impact VIS-1). Similarly, buildout of the proposed waste disposal area would be visible
from the proposed Alamos Canyon Trail looking eastward. As the final landfill contour
would extend above the existing horizon defined by the Santa Susana Mountain
ridgelines and due to the close proximity of the viewer on the trail, impacts on visual
resources from the proposed Alamos Canyon Trail vantage point would be significant
and unavoidable.
Agricultural Resources: The proposed project would convert approximately 165 acres of
open space/rural designated farmland of local importance to industrial/commercial uses
resulting in a significant and unavoidable impact on agricultural.
Farmlands of local importance extend directly west of the project site in Alamos
Canyon. Unmitigated project construction and operational emissions would produce a
maximum ambient 24-hour PM10 impact of 543 pg/m3, which would exceed the 24-
hour PM10 CAAQS of 50 pg/m3. The overwhelming majority of this impact would occur
from fugitive dust generated from proposed earth-moving activities and the operation of
mobile sources on paved and unpaved surfaces. The maximum ambient impact
estimated for project PM10 and therefore fugitive dust emissions would occur within the
farmlands of local importance directly west of the project site in Alamos Canyon. While
the 24-hour ambient background concentration of fugitive dust within these areas is not
known, it is expected to be somewhat less than 49 pg/m3. Therefore, unmitigated
proposed construction and operation would increase ambient fugitive dust levels by
more than 10 percent from background levels to farmlands within one-half mile of the
project site. Implementation of Mitigation Measure AG-2 would reduce impact from
fugitive dust to agricultural resources. However, mitigated proposed construction and
operation would increase ambient fugitive dust levels by more than 10 percent to
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farmlands within one-half mile of the proposed project site, resulting in a significant
impact.
Geology and Seismic Hazards, Mineral Resources, and Paleontological Resources: The
proposed project would cause the loss of scientifically important fossils and associated
geologic data, resulting in a significant impact on paleontological resources (Impact
GEO-8). The ongoing Paleontological Mitigation Program provides a high degree of
mitigation for the existing landfill operation. In addition, this program creates a database
necessary to determine the need for additional long-term monitoring. Implementation of
such monitoring, as outlined in Mitigation Measure GEO-1, would mitigate many of the
paleontological impacts of the project. However, since any such program would only
recover a small sample of the total number of fossils potentially disturbed by landfill
operations, the overall impact of the proposed project on paleontological resources
would be considered significant and unavoidable.
Recreation Facilities: Because the County does not have a policy or ordinance in place
requiring an applicant to pay a recreation impact fee or dedicate public easements,
there is no legal authority to impose a fee or a mechanism to ensure that fees collected
would mitigate impacts to recreation. There is therefore no feasible mitigation for the
recreation demand created by additional project employees. Since there are no
measures that would feasibly mitigate significant project impacts to future development
of recreational facilities, impacts to recreation remain significant and unavoidable.
Unresolved Concerns
First, the Final EIR has not addressed Moorpark's concerns relative to traffic analysis.
The EIR traffic analysis should analyze impacts for the entire distance of the generated
truck trips, not just the truck trips in the vicinity of the landfill. The primary east to west
transportation corridor through Moorpark is via State Route 118 (Los Angeles Avenue),
which is a surface street in Moorpark. Additional refuse trucks traveling along Los
Angeles Avenue, Moorpark's main arterial, would affect both residences and
businesses that front on this street. This could be a stronger negative effect than
additional refuse truck trips from the east, which would likely travel on the SR-118
freeway through Simi Valley to the Madera Avenue off ramp, separated from local land
uses by grade and partially by soundwalls. This issue has not been analyzed in the
Final EIR. The Final EIR states that no significant transportation related impacts are
anticipated, therefore no mitigation monitoring for transportation impacts is required.
Traffic impacts to Moorpark have not been adequately analyzed and no mitigation is
offered at this time. Since the landfill is not in Moorpark's "Area of Interest," no traffic
impact mitigation fees would be paid to Moorpark as a result of the project.
The EIR's proposed response to Moorpark's comment on traffic indicates that trips
through Moorpark would be so far away that they would be speculative to estimate and
analyze. However, due to the limited means in which refuse trucks from the west can
get to the landfill, almost all would come through Moorpark on Los Angeles Avenue. If
the Toland Landfill is not expanded or replaced after its estimated closure date of 2027,
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one could expect all refuse trucks from the west that now use the Toland Landfill to
come through Moorpark on Los Angeles Avenue to get to the Simi Valley Landfill. With
the proposed expansion, this landfill would have the capacity to accommodate these
trips. In addition, the Toland closure date is within the proposed term of the Conditional
Use Permit for the expanded Simi Valley Landfill, and therefore, the impacts must be
addressed. These additional truck trips through Moorpark would not only pose traffic
impacts, but land use impacts as well, as this increase in refuse truck traffic would not
be compatible with the residential and commercial development of Los Angeles Avenue.
The visual impacts of the proposed project, primarily from the 118 Freeway have not
been mitigated satisfactorily and this is of importance to Moorpark because the landfill
will be clearly visible to our residents when traveling eastbound on 118 Freeway. The
increase in the landfill footprint and overall height at build out is of concern, as the
footprint increases it should be adjusted so that the height of the landfill is reduced not
increased.
Appendix K of the Final EIR is comprised of a Waste Capacity Study, (Attachment 8),
which indicates that 36% of the existing waste delivered to the existing landfill, comes
from outside of Ventura County. The Final EIR does not adequately analyze the
impacts of the imminent and potential closures of other regional landfills as cumulative
impacts on the Simi Valley Landfill expansion proposal. A final decision should not be
made on the project until this has been analyzed in greater detail.
In addition, the biological impacts do not appear to have been mitigated satisfactorily.
The loss of Federal or California Endangered botanical species are to be mitigated at a
1:1 replacement ratio and this seems inadequate. Also, compensation for the loss of
critical habitat for the coastal California gnatcatcher is only proposed to be mitigated at
a 1:1 replacement ratio and this seems inadequate. Mitigation states that Waste
Management is to enhance and manage habitat in and adjacent to the Alamos Canyon
wildlife corridor with a tool such as a conservation easement over such areas, but the
areas seem generally undefined. The preservation of the wildlife corridor in this area is
of significant importance. Furthermore, the property owned by Waste Management
within the City of Moorpark does not appear to have been addressed in the EIR. This
property could aid in preserving wildlife movements, reduce impacts related to potential
odor migration and visual impacts as viewed from areas of Moorpark, to the west of the
landfill, and provide a buffer to the city.
As discussed above, the proposed Final Environmental Impact Report falls short as a
decision-making tool as it does not address the reasonably foreseeable impacts that
expansion would have on Moorpark, including traffic, visual, odor, and biological
impacts, and it does not analyze cumulative impacts of upcoming landfill closures if the
daily allowable capacity is increased. The EIR needs to be corrected before a decision
can be made on this project.
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STAFF RECOMMENDATION
Direct staff to provide a comment letter to the County Planning Commission to address
the unresolved issues in the Environmental Impact Report.
ATTACHMENTS-
1. December 1, 2010 City Council Staff Report Update on the Simi Valley Landfill
and Recycling Center Expansion Project (without attachments)
2. The County staff recommended Reduced Capacity Project Alternative for the
SVLRC
3. Proposed and Existing boundary of the SVLRC
4. December 28, 2009, staff comment letter to Ventura County, Planning Division
on the Draft EIR for the Simi Valley Landfill with Response to Comments from
Final EIR
5. Project Description of the Final EIR, dated December 2010
6. Final EIR Mitigation Monitoring and Reporting Program, (MMRP)
7. Errata to the Final EIR
8. Appendix K of the Final EIR - Waste Capacity Study
10
MOORPARK CITY COUNCIL
AGENDA REPORT
TO: Honorable City Council
FROM: David A. Bobardt, Community Development Director
Prepared By: Joseph R. Vacca, Principal Planner
DATE: November 16, 2010 (CC Meeting of 12/01/2010)
SUBJECT: Consider an Update on the Simi Valley Landfill and Recycling Center
Expansion Project, Located on the Waste Management.Property in
the County of Ventura, Adjacent to the City of Simi Valley's Western
City Boundary
BACKGROUND
On November 3, 2010, Mayor Pro Tern Mikos requested that staff prepare a report to
the City Council regarding the status of the environmental and entitlement application
for the Simi Valley Landfill and Recycling Center, which is proposed on the existing
Waste Management property, located adjacent to the City of Simi Valley's western City
boundary.
DISCUSSION
On November 6, 2007, staff sent Becky Linder, of the County of Ventura Resource
Management Agency — Planning Division, a letter commenting on the proposed Major
Modification to CUP-3142 — .Simi Valley Landfill expansion, (Attachment 1). Staff
indicated that a' project of this scale could impact the residents and businesses in
Moorpark, based on the potential for additional.truck trips through the City. The traffic
analysis for this project should use actual current truck trips as a baseline, not permitted
truck trips, and it should analyze impacts for the entire distance.of the generated truck
trips, not just the truck trips in the vicinity of the landfill. A realistic passenger car
equivalency (PCE) value should also be used for the trucks in the analysis. Cumulative
impact analysis should consider the traffic, noise, and air pollution (including odor)
increases from the'trucks in the context of other proposed projects that would also
increase truck traffic through Moorpark, notably the sand and gravel mines and organics
processing operations, which have applications on file with the County, as well as any
planned expansion of activities at the Port of Hueneme.
CC ATTACHMENT 1
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Page 2
Subsequently, on January 18, 2008, staff sent a letter to Dan Klemann, Senior Planner,
Ventura County Resource Management Agency, Planning Division, regarding the City's
receipt of a Notice of Preparation of the Draft EIR on the proposed landfill expansion,
(Attachment 2). Once again, the letter reiterated that a project of this scale could impact
the residents and businesses in Moorpark, based on the potential for additional truck
trips through the City. Staff also stated that additional comments will be provided by the
City on the Draft EIR for this project when it is available and requested that the County
include the Moorpark Community Development Department on the notification list for
environmental review and for any hearings regarding this project proposal.
On December 28, 2009, staff sent Becky Linder, Ventura County Resource
Management Agency, Planning Division, a comment letter on the Draft Environmental
Impact Report (EIR) for the proposed expansion of the Simi Valley Landfill and
Recycling Center. The comments were specific to Chapter 3.6 — Visual
Resources/Glare and Chapter 3.11 — Traffic and Circulation, (Attachment 3). The
comments were intended to raise issues that should be addressed in the Final EIR.
On July 27, 2010, new and revised sections of the Draft EIR for the Simi Valley Landfill
expansion were recirculated for public comment with comments due September 9,
2010. The recirculation was limited to new and revised sections of the EIR that
addressed some changes to the operations, air quality calculations (including
greenhouse gas analysis), impact on housing needs from additional employees, and
infeasibility of mitigation related to park/recreation in-lieu fees. Staff did not find that
these issues have a direct effect on the City of Moorpark and staff did not add to
previous comments, originally sent on December 28, 2009. Staff also indicated that the
City would provide comments on the proposal itself after the Final EIR was reviewed.
Based on the recirculation, the Final EIR will most likely not be available until early
2011.
The County still needs to complete the Final Environmental Impact Report. Once it is
complete, a draft of the Final Environmental Impact Report (FEIR) will be presented to
the County's Environmental Report Review Committee (ERRC) to review the adequacy
of the FEIR and make a recommendation for certification on only the environmental
analysis, not the merits of the project, to the County Planning Commission.
On November 15, 2010, staff contacted Peter Lyons, Director of Simi Valley Planning
Division under the Department of Environmental Services to discuss the status of Simi
Valley's review and commenting on the Draft EIR for the — Simi Valley Landfill
expansion. Mr. Lyons indicated that the City of Simi Valley created an extra territorial
review process for review of the Draft EIR for the landfill expansion. The extra territorial
review process was created by the Simi Valley City Council to facilitate and enhance the
review process outside of Simi Valley's City limits, understanding that the project has
the potential to affect the City. The extra territorial review process included the
presentation of the Draft EIR to all four of Simi Valley's Neighborhood Councils, the
Planning Commission and the City Council for review and comment. On December 9,
2009 the City of Simi Valley sent Becky Linder, Ventura County Resource Management
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December 1, 2010
Page 3
Agency, Planning Division, a comment letter on review of the Draft Environmental
Impact Report (EIR) for the proposed expansion of the Simi Valley Landfill and
Recycling Center, (Attachment 4). On December 18, 2009, Simi Valley staff sent the
County a comment letter on behalf of the extra territorial review of the Draft
Environmental Impact Report (EIR) for the proposed expansion of the Simi Valley
Landfill and Recycling Center, (Attachment 5). On September 7, 2010, Simi Valley staff
sent the County a comment letter on review of the Recirculated Draft Environmental
Impact Report (EIR) for the proposed expansion of the Simi Valley Landfill and
Recycling Center, (Attachment 6).
In speaking further with Mr. Lyons, he also indicated that there has been the creation of
a citizen advocacy group known as the Simi Valley Landfill Task Force, who believes
the Draft EIR is inadequate in many respects. Three documents from the Simi Valley
Landfill Expansion Task Force (Attachment 7) demonstrate their position on the
adequacy of the Draft EIR and Recirculated Draft EIR.
Copies of the original Executive Summary of the Draft EIR, dated September 9, 2009
and the Executive Summary of the Recirculated Draft EIR, dated July 2010, are also
provided, (Attachment 8).
Staff recommends that if the City Council wishes to provide comments on the project at
this time, that the comments be provided as preliminary comments with the ability for
City Council to provide additional comments once the Final EIR has been prepared.
FISCAL IMPACT
None
STAFF RECOMMENDATION
Direct Staff as deemed appropriate.
ATTACHMENTS:
1. November 6, 2007, staff letter to Ventura County, Planning Division, on the Simi
Valley Landfill
2. January 18, 2008, staff letter to Ventura County, Planning Division on the Notice
of Preparation of the Draft EIR for the Simi Valley Landfill
3. December 28, 2009, staff comment letter to Ventura County, Planning Division
on the Draft EIR for the Simi Valley Landfill
4. December 9, 2009, Simi Valley letter to Ventura County, Planning Division, on
review of the Draft EIR for the Simi Valley Landfill
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5. December 18, 2009, Simi Valley letter to Ventura County, Planning Division, on
behalf of the extra territorial review of the Draft EIR for the Simi Valley Landfill
6. September 7, 2010, Simi Valley letter to Ventura County, Planning Division, on
review of the Recirculated Draft EIR for the Simi Valley Landfill
7. Task Force key points on the Draft EIR; Task Force comments to Draft EIR; and
Task Force comments to Recirculated Draft EIR
8. Original Executive Summary of the Draft EIR, dated September 9, 2009 and the
Executive Summary of the Recirculated Draft EIR, dated July 2010
14
SIMI VALLEY LANDFILL AND RECYCLING CENTER (SVLRC) EXPANSION
PROJECT— REDUCED CAPACITY PROJECT DESCRIPTION
CASE NO. LU07-0048 (MAJOR MODIFICATION NO. 8 TO CUP 3142-7)
The proposed project consists of a request for a Major Modification to Conditional Use
Permit (CUP) Case No. 3942-7 in order to allow the following activities at the Simi
Valley Landfill and Recycling Center (SVLRC):
a. Accept non-hazardous and inert refuse as defined by California Code of
Regulations (CCR) Title 27, Section 20220 for non-hazardous waste and
Section 20230 for inert waste;
b. Place non-hazardous and inert material other than temporary soil
stockpiles within the limits of the proposed waste fill area;
C. Excavate cover material within the proposed excavation areas and
contours;
d. Accept and dispose sewage sludge, as defined by Item "a" above,
consistent with the requirements of the Los Angeles Regional Water
Quality Control Board;
e. Fill the refuse columns based on the proposed phasing plans;
f. Complete final cut slopes as shown in the proposed site plan;
g. Construct access/landfill roads; and,
h. Receive recyclable materials such as green waste, clean soil,
construction and demolition related materials, or Alternative Daily Cover
(ADC) for processing and/or stockpiling and use on-site (including treated
auto shredder waste or any other ADC as approved by the appropriate
regulatory agency).
The CUP also will allow the applicant to construct the facilities and operate the SVLRC
in the manner described below.
Disposal Area Physical Limits
The SVLRC CUP boundary will expand from 297 acres to 887 acres to accommodate:
• An expansion of the existing disposal footprint from 185 acres to 367.5
acres;
CC ATTACHMENT 2 15
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 2 of 8
• An increase in waste capacity from 43,500,000 cubic yards (34,800,000
tons) to approximately 108,000,000 cubic yards (86,500,000 tons), for a
net increase of 64,500,000 cubic yards (51,700,000 tons); and,
• Approximately 519.5 acres to be used as a buffer around the disposal
footprint.
The buffer area surrounding the landfill will primarily consist of open space areas, but
will also include access roads, material and equipment storage yards, mitigation areas,
recycling facilities and equipment, and drainage structures.
The final grades will increase from the currently permitted fill elevation of 1,118 feet
above mean sea level (msl) to approximately 1,200 feet above msl, for a net increase of
82 feet above msl. The increase in elevation will begin with lower elevations within the
southern portions of the project site (i.e., within the existing landfill footprint) to the
maximum elevation within the expansion area to the north. The fill operation will be
completed in four phases. Phase I will include additional filling of the existing landfill
area, while Phases II through IV will include filling the expansion areas. The landfill
footprint will be located between existing ridgelines, which vary between approximately
1,000 and 1,350 feet above msl, and the fill areas will be designed to blend with the
adjacent hilltops and ridges. After closure of the landfill, the applicant will revegetate the
site with native drought-tolerant vegetation to stabilize the final cover and prevent
erosion.
Operational Limits
The proposed project will not alter the current combined permitted limit of 9,250 tons per
day (TPD) for all incoming materials, which include both municipal solid waste (MSW)
and recyclables. However, the allocation of material types will change from 3,000 TPD
of MSW and 6,250 TPD of recyclables, to 6,000 TPD of MSW and 3,250 TPD of
recyclables.
Ancillary and Support Facilities
The SVLRC Expansion Project includes the construction and use of the following ancillary
and support facilities. The facilities will be located on approximately 30 acres (designated
as the support/ancillary facilities area) within the existing CUP boundary. The buildings
associated with these facilities will be constructed to meet (at a minimum) the Silver Level
under the Leadership in Energy and Environmental Design (LEEDO) Green Building
Rating System, developed by the U.S. Green Building Council. The applicant will remove
The Reduced Capacity Project Alternative includes all of the buildings and structures that were included
in the original, proposed project description. Please see the plans for these facilities which are included
at the end of this project description. For visual simulations of these facilities, please see Chapter 2 of the
Final Environmental Impact Report (FEIR), which is available on-line at:
http://www.ventura.org/rma/planning/ceqa/eir.html.
16
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 3 of 8
the facilities upon cessation of the landfill and/or transfer operations. The ancillary and
support facilities are as follows.
Material Recovery Facility (MRF)/Recyclables Transfer Facility (RTF)
The facilities area will include a MRF/RTF to enhance recycling capabilities for the
community. The MRF/RTF will be located on approximately two acres and will be
comprised of a 50,000 square foot, 35 foot tall building for recycling activities. The
facility will accommodate the front-end processing of up to 500 TPD of source
separated recyclables and/or the transfer of recyclables to off-site locations for further
processing. Build-out of the facility to the maximum capacity of 500 TPD will be
completed in phases based on the volume of recyclable materials received. The facility
will be a partially enclosed structure with a concrete tipping floor for initial receipt of
recyclable material. Light and heavy equipment including loaders, grapples, and
sweepers will be used within the MRF/RTF. Processing of recyclables may include hand
and/or mechanized sorting (using conveyor-sort lines, trammels, screens, bailers, etc.)
and shipping of processed material for off-site advanced processing/sale. Pre-sorted
recyclables may be immediately reloaded into transfer vehicles without on-site
processing, for marketing at off-site facilities. The operating hours will be limited from
6:00 AM to 8:00 PM daily, other than recognized holidays, 312 days per year
Public Household Hazardous Waste Collection Facility — Simi Valley Environmental
Collection Center(SVECC)
The project includes the construction and use of a public household hazardous waste
collection facility, which will accept items such as household paints, solvents, antifreeze,
flammables, and electronic waste. An approximately 750 sq. ft. building, approximately
25 feet in height and attached to the MRF/RTF building, will house the public household
hazardous waste collection facility. The facility will contain two to four skid-mounted
units for the storage of materials collected from the public. The operating schedule for
this facility will be based on agreements and funding from State and local agencies.
Waste Hauling Yard Relocation
The project includes relocating the GI Rubbish refuse hauling operation, which is
currently located at 195 West Los Angeles Avenue in Simi Valley, to the SVLRC. The
operation of the waste hauling yard will involve 250 refuse vehicles as well as support
vehicles and equipment. Relocation of the waste hauling yard will entail construction of
new facilities to be shared by hauling and landfill operations, including a main office
facility and employee parking and vehicle maintenance facility. The facilities will be
located on approximately 15 acres within the proposed 30-acre support/ancillary
facilities area.
Office Building
The project includes the construction and use of an approximately 25,000 square foot,
32 foot tall, two-story, main office building located within the proposed 30-acre facilities
area. The main office will accommodate up to approximately 150 office personnel for
the landfill, MRF/RTF, and GI Rubbish. The office building will include
staff/management offices, a conference room, a dispatch location, a driver
17
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 4 of 8
locker/bathroom/shower facility, a customer service area, a break room/lunchroom, and
a visitor/environmental education center. The environmental education center will be
used for tours and site visits to educate visitors about the landfill, hauling operations,
recycling, and renewable energy.
Heavy Equipment and Vehicle Maintenance Facility
The project includes the construction and use of an approximately 30,000 sq. ft.,
approximately 39 feet in height, heavy equipment and vehicle maintenance facility,
which will be constructed within the proposed 30-acre support/ancillary facilities area.
The building will consist of enclosed bays, a parts/supplies room, maintenance offices,
employee restrooms, and a break room. The facility will be used for routine
maintenance and repair of the hauling vehicle fleet and heavy equipment associated
with operation of the MRF/RTF and the landfill. The heavy equipment and vehicle
maintenance facility area will be equipped with a vehicle and equipment wash rack, a
paint booth for containers and vehicles, and fueling facilities. The applicant will use
facility design features and Best Management Practices to prevent the discharge of
pollutants to storm water from the Heavy Equipment and Vehicle Maintenance Facility.
New Entrance Road, Scales, and Scalehouse
The project includes an expansion of the existing entrance road to accommodate three
inbound queue lanes and one bypass lane within the gates of the SVLRC. The applicant
will construct three inbound scales and one outbound scale, as well as a new scale
house facility, for processing and weighing all vehicles entering the site.
Recyclinq and Resource Recovery/Conversion Areas and Facilities
Construction and Demolition (C&D) Debris Recycling
The project will include processing of up to 500 TPD for C&D debris recycling. The C&D
debris recycling area will migrate within the waste disposal footprint depending on
operational considerations as each phase of the landfill is developed. Vehicles
containing construction and demolition materials as defined by the California Code of
Regulations [Title 14, §17381(e)] will be routed to the C&D debris sorting operation. The
applicant will remove recyclable material either by hand or machine for further
processing on- or off-site. The applicant will grind residual material meeting the
definition of C&D alternative daily cover (ADC) for use on the active face. The applicant
will implement dust control measures to manage fugitive dust. The applicant will remove
refuse from the C&D loads, and dispose the loads within the landfill working face. The
hours of operation will be from 6:00 AM to 8:00 PM, daily, except holidays, 312 days per
year.
Expanded Green Waste Processing Facility
The project includes a 10-acre green waste processing facility. The greenwaste
processing area will receive up to 500 TPD of green material. The applicant will remove
most of the processed materials off-site after chipping. The applicant will use material
that remains on-site for mulch (erosion control) and/or ADC. The applicant will apply
dust control during green waste processing to control fugitive dust. The project does not
18
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 5 of 8
include composting. The hours of operation will be from 6:00 AM to 8:00 PM, daily,
except holidays, 312 days per year.
Expanded Landfill Gas to Energy (LFGTE) Operations
The project includes the installation of up to three additional LFGTE generation systems
similar to those currently located at the SVLRC. These systems will use excess landfill
gas generated by the SVLRC, which otherwise would be lost through flaring, to
generate additional electricity. Electricity generated from these additional systems will
be used internally to power new and expanded buildings and facilities with the excess
sold to the local utility grid and/or to support a LFGTLNG facility at the SVLRC. The
expanded LFGTE systems will be located adjacent to the existing LFGTE operation and
flare station in the southwest portion of the landfill CUP boundary.
The electrical generation systems will operate continuously 24 hours a day, seven days
a week, 52 weeks a year, except when maintenance activities occur. Annual
maintenance, including cleaning burner tips and flame arrestors, as well as inspecting
the refractory and calibrations, will require the flares to be down for a total of six to eight
hours throughout the year. The flares (and engines) will also be taken offline periodically
(approximately one to 1.5-percent of the time annually). The project also includes the
continued use of an existing LFGTE facility, for the generation of electricity that is used
onsite. The facility is part of the SVLRC landfill gas control system and includes two
pre-packaged 1.35-megawatt (MW) electrical generation systems. The LFGTE facility
maintains the SVLRC onsite load requirement and the SVLRC provides the remaining
electricity to local utility companies.
Landfill Gas to Liquefied Natural Gas (LFGTLNG) Facility
The project includes the construction and operation of a LFGTLNG facility located just
north of the existing landfill gas flare station. The facility will treat landfill gas to remove
impurities, condense the gas to a liquid phase by chilling, separate out the natural gas
component, and store the gas in cryogenic tanks for use as a transportation fuel to power
heavy-duty landfill vehicles including sanitation trucks. The proposed facility will produce
up to 18,000 gallons of liquefied natural gas per day. The applicant will treat and liquefy
landfill gas for use in heavy-duty vehicles, such as sanitation trucks, transit buses, and
tractor-trailers.
The applicant will store the final liquefied natural gas product in four 15,000 gallon
cryogenic tanks. The majority of fuel that will be produced will be exported by tanker
truck (typically 10,000 gallon capacity trucks) for use at various locations. The applicant
will install a liquefied natural gas fueling station concurrent with the production facility at
the landfill. The fueling station will fuel liquefied natural gas trucks that are already in
use at the SVLRC for the disposal of waste.
The LFGTLNG facility will operate up to 24 hours per day, seven days per week, and 52
weeks per year. The LFGTLNG facility will be equipped with advanced data monitoring,
tracking, and recording hardware and software.
19
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 6 of 8
Hours of Operation
The hours of operation for waste receipt and/or disposal, waste handling and/or cover
operations, site grading and/or excavation, and other heavy equipment operations on
the surface of areas surrounding the refuse column, will be limited to 6:00 AM to 8:00
PM, seven days per week, 365 days per year. Other activities such as landfill gas and
leachate collection/disposal, equipment and vehicle maintenance, MRF/RTF operations,
and compliance tasks will normally occur over a 24 hour period except for periodic
maintenance and other downtime.z
The applicant's operation of the hauling vehicle fleet, will be limited to the hours
between 4:00 AM and 8:00 PM, seven days per week, 365 days per year.
The applicant will be able to operate the SVLRC outside of the permitted hours of
operation, only after receiving prior written approval from the Planning Director to do so.
Personnel and Equipment
The project will result in an increase from 25 to 50 employees for the landfill operation.
The expanded hauling facility will accommodate 250 personnel, of which 25 are currently
located at the SVLRC and 225 (135 drivers and 90 customer service, shop, support, and
management personnel) are currently located off-site at the existing GI Rubbish hauling
facility located in the City of Simi Valley. The project includes the relocation of the existing
hauling facility to the SVLRC and the hauling facility personnel will increase from 225 to
350 people (225 drivers and 125 customer service/billing staff, shop, support, and
management personnel) over the life of the project. The expanded hauling facility will
accommodate 250 refuse collection vehicles. Therefore, the project will increase the
number of personnel from 250 to 400 employees, for a net increase of 150 employees.
The operational activities at the SVLRC will increase in relation to the increased
disposal tonnage. Therefore, the landfill equipment inventory for the proposed project
will increase incrementally.
Water Supply
The project is estimated to require an annual water supply of 174 acre feet (AF), which
the Ventura County Waterworks District No. 8 will provide. The existing on-site and
offsite water distribution facilities will be upgraded to provide the required fire flow at a
maximum velocity of eight cubic feet per second. The applicant will connect the off-site
facilities to an existing 16-inch pipeline near the SVLRC.
2 See the description of these facilities, above, which specify their days and hours of operation.
20
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 7 of 8
Domestic Wastewater
The support/ancillary facilities (described above) will be serviced by an on-site package
sewage treatment plant. The package sewage treatment plant will include the
installation of wastewater processing equipment on-site. The wastewater processing
equipment, which will occupy an approximately 400 sq.ft. area, will physically separate,
biologically treat and coagulate, filtrate, and disinfect wastewater generated on-site.
The final effluent may be utilized for landscape irrigation and/or dust control. The
project does not include the use of a leach field or off-site discharge of domestic waste.
The facility will require a permit from the Los Angeles Regional Water Quality Control
Board (LARWQCB) and must meet the operation and maintenance guidelines of the
California Department of Public Health.
Table 1 (below) includes a comparison of the: existing, permitted landfill operations;
original, proposed project description for the SVLRC expansion project, and, Reduced
Capacity Project Alternative discussed above.
21
SVLRC Reduced Capacity Project Description (Case No. LU07-0048)
February 24, 2011
Page 8 of 8
Table 1 - Comparison of the Existing Landfill, Proposed Landfill Expansion Project, and
Reduced Capacity Project Alternative
MotaIUP Area - including easements acres 297 887 887
Waste Disposal Footprint acres 185 371 367.5
Landfill Volume cubic yards) 43.5 million 123.1 million 108.0 million
Waste Ca acit tons 29.6 million 98.5 million 86.5 million
Permitted Daily Dis osal tons 3,000 6,000 6,000-
Permitted Daily Recyclables tons 6,250 3,250- 3,250
Total Permitted ail Vo ume tons Disposal & Rec clables 9,250 9,250 9,250
Site Closure Date per existing 2034 Not Applicable Not Applicable
Est. Closure Date @3,000 t d Disposal Tonna a 2024 Not Applicable Not Applicable
Est. ite Closure Date @6,000 tpd Not Applicable 2051 2047
Elevation Limit 1,118 1,270 1,200
Hours of Operation 6:OOAM-8:00PM 6:OOAM—8:OOPM 6:OOAM—8:00PM
L G to Energy Generators 2 5 5
LM to LNG Facility 0 1 1
Numbers of Em o ees 25 400 (inc l. GI Rubbish 400 incl. GI Rubbish
Square Footage of Building Improvements 20,000 127,000 (w/consolidated 127,000 (w/consolidated
offices & maint. shop) offices & maint. shop)
Permitted Maximum Daily Vehicle Trips Roundtri 822 1 1,297 1 297
Source: Psomas 2007
Notes: 1. From existing SWFP.
2. Capacity derived utilizing 1,600 pounds per cubic yard (0.8 tons per cubic yard)density.
3. Combined disposal of MSW and recyclables would not exceed 9,250 tpd.
4. Includes relocation of GI Waste Hauling Facility to SVLRC from off-site.
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CC ATTACHMENT 3
25
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City o Wooer aY
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90 COMMUNITY DEVELOPMENT DEPARTMENT:PLANNING-BUILDING AND SAFETY-CODE COMPLIANCE
799 Moorpark Avenue, Moorpark, California 93021 (805)517-6200 fax(805) 532-2540
December 28, 2009
Ventura County Resource Management Agency, Planning Division
Attn.: Ms. Becky Linder
800 South Victoria Avenue, L#1740
Ventura, CA 93003-1740
RE: Draft Environmental Impact Report
Major Modification Application Case No. LU07-0048
Simi Valley Landfill and Recycling Center Expansion
Dear Ms. Linder,
Thank you for the opportunity to review the Draft Environmental Impact Report (EIR) for CM-1
the proposed expansion of the Simi Valley Landfill and Recycling Center. The
Community Development Department of the City of Moorpark has the following comments
on this Draft EIR that we would like to see addressed in the Final EIR.
1. Chapter 3.6—Visual Resources/Glare
This chapter includes visual simulations from several viewpoints that help the reader
to understand the significance of the visual impact of the landfill expansion. Although
the EIR rightfully concludes that visual impacts would be significant even after
mitigation, a map showing the areas from which the landfill expansion would be visible
(i.e. near views, middle view, distant views) would be helpful to understand the full
scale of the visual impact. Mitigation should include contour grading techniques along
with the landscaping to make the fill slope appear more natural. This chapter should
also clarify that the North Park Village Planned Residential Development from which
views were analyzed was voted down by the Moorpark electorate before the Notice of
Preparation was circulated, and no other development proposal is being considered
for this site at this time.
2. Chapter 3.11 —Traffic and Circulation CM-2
In two prior letters to County staff (November 6, 2007 and January 18, 2008),
Moorpark Community Development Department staff requested an analysis of truck
traffic through Moorpark. The traffic analysis in the Draft EIR did not address this
issue. Instead, it focused on traffic impacts at intersections in close proximity to the
landfill. With the upcoming closing of Toland Landfill, an expanded Simi Valley Landfill
would likely be handling municipal waste from the entire county. Waste haulers from
the west county would likely be using the SR-118 (Los Angeles Avenue) to access the
landfill as it would be the most direct route. This State highway through Moorpark's
commercial corridor is already heavily impacted with heavy truck traffic, which, during
a typical midday make up 20-25 percent of all vehicles. Understanding the number of
S:1Community DevelopmentlOTHER AGENCIES1Ventura County1091228 Simi Valley Landfill.doc
JANICE S. PARVIN ROSEANN MIKOS KEITH F.MILLHOUSE DAVID POLLOCK MARK VAN DAM
Mayor Mayor Pro Tern Counril-ember Councilmember Councilmember 26
CC ATTACHMENT 4
Ms. Becky Linder
December 28, 2009
Page 2
CM-2 additional waste haulers on Los Angeles Avenue is important not only to the traffic
analysis, but to the air quality analysis as well, particularly for odorous emissions and
cumulative emissions from diesel trucks. The Draft EIR (Section 3.2) only addresses
odorous emissions at the landfill itself, not along waste hauling routes, which would
change as a result of the landfill expansion.
Please let me know if you have any questions on these comments. Comments on the
proposal itself will be provided after review of the Final EIR.
Sincerely,
OXI,
David A. Bobardt
Planning Director
CC: Honorable Mayor and City Council
Honorable Planning Commission
Steven Kueny, City Manager
Jennifer Mellon, Senior Management Analyst
Chron
File
27
Final Response to Comments oil
Draft EIR
Simi Valley Landfill and Recycling Center Expansion Project
City of Moorpark, December 28, 2009
CM-1. The comment requests a map showing areas from which the landfill could be visible. Figure
3.6-1 provides graphic showing the viewpoint locations which provide an indication of
locations from which the landfill can be seen. While this figure does not provide full
geographic coverage of visible locations, combined with the photographs it does give a
reasonable representation of the overall visibility of the landfill from the area.With regard to
contour grading, it is not part of the project proposal and, while it might reduce somewhat
the visual effect of the closed landfill, it would not substantially mitigate the visual effects.
CM-2. The comment complains that the traffic analysis did not address truck traffic through
Moorpark despite requests to do so.As noted in the comment,the analysis focused attention
on those intersections closest to the project that would be most heavily impacted by project
traffic. Given the diverse routes that trash trucks are likely to use to access neighborhoods
and deliver waste to the landfill, estimates to allocate truck trips to intersections very far
from the landfill would be speculative. The City of Moorpark is sufficiently distant that
confidence in the estimated allocation of truck trips would be very low. In addition, the
number of truck trips in the City is not expected to increase by a large amount from current
levels and trash trucks represent a small fraction of total truck traffic.Therefore,it would be
speculative to attempt to assess truck trips that far from the landfill.
28
2 Project Description
1 The proposed project(Permit Case No.LU07-0048;Major Modification No.8 to CUP-3142)is an expansion
2 of the existing SVLRC. The SVLRC's CUP boundary is proposed to be expanded to encompass 887 acres
3 within which the waste disposal area would be expanded north and west from its current permitted location to
4 encompass 186 acres of additional waste disposal area and to increase the total capacity of the landfill from
s 43.5 to 123.1 million cubic yards.The amount of MSW that could be received per day is proposed to increase
6 from 3,000 tons to 6,000 tons and the amount of recycling to be reduced from 6,250 tpd to 3,250 tpd. The
7 total daily tonnage (i.e., combined MSW and recyclables) permitted for the facility would not change.
8 Additionally,several existing ancillary facilities(defined for the purpose of this project as facilities ancillary
9 to the active landfill such as the waste receiving and recycling facilities)and support facilities(defined for the
10 purpose of this project as facilities that support the landfill operation such as administrative offices and
11 maintenance facilities)would be expanded and new facilities constructed within the landfill CUP boundary
12 including: office building;heavy equipment and vehicle maintenance facility;waste hauling yard; material
13 recovery facility/recyclable transfer facility(MRF/RTF);public household hazardous waste collection facility
14 (SVECC);new entrance road,scales,and scale house;expanded construction and demolition(C&D)debris
15 recycling processing area; expanded green waste processing facility; expanded landfill gas-to-energy
16 (LFGTE)facility;and landfill gas-to-liquefied natural gas(LFGTLNG)facility.The proposed project would
17 require a major modification to the existing SVLRC CUP(CUP-3142-7)issued by the County of Ventura.
18 2.1 Project Location
19 The SVLRC is located in an unincorporated area of southeast Ventura County within the United States
20 Geological Survey(USGS)7.5 minute Simi Valley West topographic quadrangle(Figure 2.1-1).The site is
21 north of the State Route (SR)-118 and west of the Madera Road overcrossing. The site entrance is
22 approximately 2,800 feet west of Madera Road. The facility address is 2801 Madera Road, Simi Valley,
23 California 93065.
24 The proposed 887-acre CUP boundary would encompass all or portions of 11 parcels(nine current and two
25 additional parcels)situated on two lots with a combined size of approximately 1,487.47 acres.The Assessor's
26 Parcel Numbers(APNs)are noted in Table 2.1-1.Figure 2.1-2 shows the parcels and associated acres within
27 the existing CUP boundary.The General Plan Land Use Designations are"Open Space"and"Open Space-
28 Urban Reserve". The property is zoned as "OS-160 acres"(Open Space, 160 acres minimum lot size)and
29 "AE-40 acres"(Agricultural Exclusive,40 acres minimum lot size).
Table 2.1-1. Existing and Proposed CUP Expansion Parcels
Assessors Parcel Number Acres Within Existing CUP Acres Within Proposed CUP
Boundary Boundary
615-0-160-01 0.0 2.7
615-0-150-32 9.4 163.0
615-0-160-13 32.0 403.4
615-0-160-46 17.9 16.4
615-0-150-29 91.8 91.8
615-0-150-33 19.0 19.0
615-0-150-24 58.7 58.7
615-0-150-25 60.9 60.9
615-0-160-44 4.1 60.7
615-0-160-28 0.0 8.6
615-0-150-30 1.4 1.4
TOTAL 295.2 887.1
Simi Valley Landfill and Recycling Center Expansion Project 2-1
Final E!R-December 2010 CC ATTACHMENT 5
29
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30
615-0-110-12
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615-0-110-13
615-0-60-12 ri 615-0-160-01
�615-0-150-06 1
NAG.
LANDFILL `\`
/��• EXPANSION
i
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• / /
� �• •I
615-0-160-03
00-0-292-23 P
-0-292-19 -0- 50-500 X5 �
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v
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500
i 7-0-292-25 V O
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500-0-292-01 �. / 615-0-160-44
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L
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X615-0-160-35 NA.P.
615- - 0-35= _ a j 615-0-160-30
615-0-150-13 15-0-160-32 s�u� 1Q 15-0-160-32
s01"NErav Mt Er UNINCORPORATED VENTURA COUNTY
'OS-GRESAw Y!t 615-0-160-47 '\ CITY OF SIMI VALLEY
615-0-150-31 �6:5-C-'6C-26
615-0-150-34
PARCELS WITHIN PROPOSED LANDFILL BOUNDARY L6?5-0-160-37 6 15-0-160-27
'-615-0-160-38 615-0-160-3'
6t5-0-t60-34
ASSESSOR PARCEL NUMBER ASSESSOR PARCEL NUMBER 615-0-t60-39 615-0-160-33
NO APN ;ACREAGE" NO APN ACREAGE'
LEGEND:
1 615-0-160-01 2.7 AC 6 615-0-150-33 19.0 AC PROPOSED LANDFILL BOUNDARY �r
2 I 615-0-150-32 163.0 AC 7 � 615-0-150-24 58.7 AC ASSESSOR PARCEL BOUNDARY
WASTE MANAGEMENT PROPERTY BOUNDARY f111
3 615-0-160-13 403.4 AC 8 615-0-150-25 60.9 AC
----- CITY / COUNTY BOUNDARY
4 615-0-160-46 16.4 AC 9 615-0-160-44 60.72 AC
5 615-0-150-29 91.8 AC 10 615-0-160-28 8.6 AC
I
11 615-0-150-30 1.4 AC
AREA OF APN WITHIN PROPOSED LANDFILL BOUNDARY Source: Psomas 2008
Figure 2.1-2. Parcel Map
w
2 Project Description
1 The existing SVLRC(i.e.,area within the existing CUP boundary)is bound,generally,by Alamos Canyon to
2 the west,Brea Canyon to the east,an unnamed tributary drainage to Alamos Canyon to the north,and SR-1 18
3 to the south (Figure 2.1-1). Land immediately to the east, north and west of the site is undeveloped and
4 currently zoned open space as designated by Ventura County. SR-1 18 runs in an east/west direction directly
5 south of the site.There is an area of light industrial and business parks to the south-southeast of the SVLRC.
6 The nearest business is 700 feet from the southern CUP boundary and the nearest residence is approximately
7 one mile from the southeast CUP boundary.
8 2.2 Site History
9 2.2.1 Ownership and Permitting History
10 In May 1970,the Simi Valley Landfill opened under the ownership of Moreland Investment Company. The
11 site was operated by the Ventura County Public Works Agency(VCPWA)under CUP 3142 initially issued
12 by the County of Ventura Planning Division for a period of five years.This CUP,as periodically revised, is
13 currently in effect for the site. The site also operated under WDRs (Order No. 70-36) issued by the
14 LARWQCB.Order No. 70-36 prescribed WDRs for disposal of non-hazardous wastes(formerly referred to
15 as Group 2 and Group 3 wastes,now referred to as MSW and inert materials,respectively).Order No.70-36
16 also authorized disposal of hazardous materials (formerly Group I wastes, now hazardous wastes and
17 designated wastes) in an approximately 75-acre area near the north end of the site.
18 In July 1972,VCPWA transferred its landfill operations to the Ventura Regional County Sanitation District
19 (later renamed Ventura Regional Sanitation District [VRSD]), which assumed operation of all publicly
20 operated sanitary landfill facilities in Ventura County. The Ventura County Planning Commission issued a
21 modified CUP to VRSD on June 5, 1975 for continued use of the Simi Valley Sanitary Landfill until the
22 designated fill elevations(which ranged from 925 to 1,020 feet)were attained.The modified CUP extended
23 the projected site life of the landfill by approximately 13 years to 1988.
24 In 1980,the State Water Resources Control Board (SWRCB)amended the regulations for land disposal of
25 non-sewerable and hazardous wastes by setting additional standards and guidelines for classification of waste
26 disposal sites.Also in 1980,federal regulations for landfill design and operation were released pursuant to the
27 1976 Resource Conservation and Recovery Act (RCRA). As a result, geologic and hydrogeologic
28 investigations were conducted in 1980,and an inventory of wastes disposed at the site was compiled in terms
29 of types of wastes,types of disposal,and disposal locations.Based on the resulting information,on November
30 13, 1980, Moreland Investment Company (owner of the site) requested an immediate suspension of the
31 disposal of hazardous wastes at the site.After consultation with the Regional Board Executive Officer,VRSD
32 suspended receipt of hazardous wastes, effective November 18, 1980.
33 On January 8, 1983,the Simi Valley Landfill was acquired by Chemical Waste Management, Inc.,a wholly
34 owned subsidiary of Waste Management, Inc.(WMI). Waste Management of North America, Inc.,another
35 wholly owned WMI subsidiary,is WMI's operating group and includes several divisions nationwide.One of
36 these divisions is WMC. Because the SVLRC accepted only non-hazardous waste, WMI transferred
37 ownership of the landfill from their hazardous waste subsidiary,Chemical Waste Management,Inc.,to their
38 solid waste subsidiary, WMC.
39 In May 1983, the LARWQCB adopted Order No. 83-026 prescribing revised WDRs for the landfill and
40 prohibiting disposal of liquids and hazardous wastes.On October 21, 1983,the site obtained a S WFP(No.56-
41 AA-0007)as a MSW disposal site. The permit allowed overfill of the hazardous waste area(i.e.,the former
42 Class I area) with designated wastes and MSW up to the 980-foot elevation contour.
2-4 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
32
2 Project Description
1 In 1989, the current owner(WMC) was granted a major modification of the CUP to expand the site's CUP
2 boundaries to 271.6 acres,expand the footprint of the refuse column to 135.2 acres,and expand the site capacity
3 to 23.7 million cubic yards. These new limits were approved with a site closure date of 2004.
4 On June 14, 1989,the Ventura County Planning Director approved minor Modification No. 1 (CUP-3142-1)
s to incorporate various accessory structures not authorized under the original CUP entitlement. On June 15,
6 1989, the Planning Commission approved Major Modification No. 2 for various uses and operations
7 described in Condition No.4 of the CUP, including excavation of cover material,acceptance and disposal of
8 sewage sludge, completion of cut slopes, construction of major landfill access roads, and construction of a
9 new entrance facility complex.
10 On February 26, 1990, the LARWQCB adopted Order No. 90-034, prescribing WDRs for disposal of inert
11 (e.g., clean soils, petroleum-contaminated soils, and concrete) and non-hazardous solid wastes, including
12 dewatered sewage sludge or water treatment sludge.Pursuant to Order No.90-034,a clay cap was constructed
13 during 1990-91 over all parts of the former Class I area that had received waste.
14 On November 20, 1990, the Planning Director approved Minor Modification No. 3 for the addition and
15 operation of a Resource Recovery Area located within the existing permit boundary.This involved provision
16 of a separate tipping area for concrete/asphalt,wood/green waste,white goods(e.g.,refrigerators and stoves),
17 scrap metal, and tires for the purpose of diverting these materials from the landfill for recycling.
18 On September 16, 1993, Minor Modification No. 4 was approved by the Planning Director to change the
19 language of various conditions.
20 In May 1995,Major Modification No.5 was submitted requesting a permit for a co-composting facility.The
21 proposed modification was later withdrawn by WMC.
22 In December 1995,the CIWMB issued modification of SWFP 56-AA-0007,limiting disposal to 3,000 tpd of
23 municipal solid waste and 3,600 tons per month of acceptable sludges from water and wastewater treatment
24 plants. No limits were placed on acceptance of recyclable materials(Ventura County EIJD 1995).
25 On June 29, 2000, the LARWQCB adopted Order No. 00-092, prescribing WDRs for acceptable and
26 unacceptable materials and other requirements for disposal site operations, including the requirements for
27 Monitoring and Reporting Program No. 5643 (I.ARWQCB 2000).
28 On November 26,2002,the Ventura County Board of Supervisors approved Major Modification No.6 for an
29 expansion of the landfill and a time extension to CUP 3142.This included expanding the CUP boundary by
30 25.85 acres,expanding the landfill capacity by 19.8 million cubic yards,expanding the landfill footprint by
31 50.41 acres, and extending the site life of the landfill by 30 years from 2004 to 2034.
32 On August 10, 2003, Minor Modification No. 7 for the addition of a LFGTE facility was approved by the
33 Planning Director.
34 A 2007 addendum to the 2002 Final Supplemental EIR for Major Modification No.6 of CUP-3142 allowed
35 for Construction and Demolition (C&D) sorting and recycling with the option of grinding (i.e. further
36 processing),the residual to be used for ADC at the Simi Valley Landfill and Recycling Center(SVLRC). A
37 revised Joint Technical Document(JTD)was reviewed by Ventura County Environmental I lealth Department
38 (EHD)for this additional process and on October 9,2007 the JTD was accepted and filed with the EHD. EHD
39 submitted the JTD package to the California Integrated Waste Management Board(CIWMB)(now known as
40 the Department of Resources, Recycling, and Recovery, or CalRecycle) on October 9, 2007.
41 CIWMB responded back to EIiD in a letter dated October 17,2007 that the JTD application and amendment
42 was received.
Simi Valley Landfill and Recycling Center Expansion Project 2-5
Final F.IR—December 2010
33
2 Project Description
I In addition to the CUP modifications, to date the County Planning Division has approved 25 Permit
2 Adjustments (PAJs). Some of the recent PA1s include:
3 • February 1995. PAJ 19: Expansion of greenwaste asphalt pad.
4 • July 1995. PAJ 20: Instituted Sunday closures(except third Sunday of each month).
s • July 1995. PAJ 21: Revised Phase I north landscape plan.
6 • July 1995. PAJ 23: Revised wind monitoring program.
7 • October 1995. PAJ 22: Constructed new internal haul road.
8 a February 1996. PAJ 24: Installed above ground gas collection system.
9 • October 1996.PAJ 25: Installed revegetation/riparian offset areas for detention/sedimentation basin.
10 • August 2000. PAJ 27. Installed Reclaimed Water and Odor Control Systems.
11 • November 2000. PAJ 28. Revisions to CUP Conditions.
12 • January 2001. PAJ 29. Installation of Gas Flare No. 2.
13 2.2.2 Historic Hazardous Waste Disposal
14 As described above,while operated by the VRSD,the Simi Valley Landfill accepted hazardous wastes from
15 1971 until mid-1982 in an approximately 75-acre area near the north end of the site.In practice,only about 25
16 acres was available for disposal since the designated area included slopes and inaccessible ridge tops.Within
17 the former Class I area, approximately nine acres received only hazardous wastes and liquids and 16 acres
18 received both hazardous wastes and municipal refuse.
19 Specific sections of the former Class I area were set aside for the disposal of different waste types.A 100-foot
20 by 100-foot grid system was laid over the Class I area by VRSD to record the location of hazardous wastes
21 disposed within the landfill.Each grid,or cell,was numbered and their locations were marked with stakes on
22 the landfill surface. This system was in use by 1973. Disposal locations for the approximately 1,000 tons of
23 hazardous wastes received in 1971 and 1972 prior to the adoption of this system were not recorded on the
24 load slips(SCS Engineers 1980).
25 From 1971 until 1982, the landfill received approximately 29,000 tons of solid, liquid, and containerized
26 hazardous wastes (LARWQCB 2000). The types of wastes handled included alcohols, solvents, asbestos,
27 caustics,ethylene dichloride,fireworks,grease/oil,drilling muds,contaminated paper and rags,pesticides and
28 pesticide containers, petrochemicals, resins, polychlorinated biphenyls (PCBs), miscellaneous chemicals,
29 hospital wastes, cyanides, industrial and plating sludges, tank bottom sediments, and others.
30 On March 22, 1982, the I,ARWQCB issued an administrative order to the VRSD prohibiting additional
31 disposal of hazardous wastes and liquid wastes and limiting disposal to MSW.On October 21, 1983,the site
32 obtained a SWFP as an MSW disposal site. The permit allowed overfill of the former Class I area with
33 designated wastes and MSW up to the 980-foot elevation contour.
34 At the onset of this disposal activity in 1971, it was generally not required by permit nor was it within the
35 state of the art to place a liner or leachate collector below the waste. Such was the case at the Simi Valley
36 Landfill, where it has been reported that neither a liner nor a leachate collector were installed beneath the
37 Class I area(Converse Ward Davis Dixon 1980).
38 In 1986, a leachate barrier/collection system was installed at the southerly toe of the landfill in the canyon
39 base to collect alluvial flow potentially impacted by the older unlined areas of the landfill. The system
2-6 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
34
2 Project Description
1 consists of the following elements: 1) a subsurface compacted clay barrier keyed into competent bedrock
2 extending across the canyon mouth immediately downslope of the landfill toe; 2) a leachate collection
3 drainage layer, subdrain, and sump installed on the landfill side of the barrier; and 3) a pump, discharge
4 piping, and storage tank to remove and store leachate collected at the toe barrier. The system collects
5 approximately 1,000 to 4,500 gallons of leachate per day, which is treated and used for dust control.
6 In 1990, pursuant to LARWQCl3 Order Number 90-034, a clay cap was constructed over all parts of the
7 former Class I area that had received waste. A one-foot thick clay cap with a hydraulic conductivity of 1 x
8 10-6 centimeters per second(cm/sec)was placed over previously placed cover material throughout the area.A
9 thicker cap was placed in the northern-most part of the former Class I area, consisting of 4 to 5 feet of
10 material with a permeability of 1 x 10.6 cm/sec or less' which was the regulatory standard at the time.An area
11 of 1.5 acres within the designated Class I disposal area that had not received any waste was lined with a two-
12 foot thick clay liner with a hydraulic conductivity of 1 x 10-6 cm/sec prior to the placement of Class III waste
13 in that location. Prior to the placement of Class III waste over the former Class I area, the clay cap over the
14 former Class I area was covered with an additional clay liner material and drainage system to collect and
15 remove leachate from under Class III waste placed above the former Class I disposal area. Leachate from
16 these areas drains to a perforated pipe which drains into an approximately four acre area(Cell A).Cell A is
17 lined with a 60-mil high-density polyethylene(HDPE)geomembrane over a one-foot thick-composite(clay
18 and geosynthetic) clay base liner material with a permeability of 1 x 10-6 cm/sec. Additionally, Cell A
19 contains a leachate collection and removal system.This provides for leachate collection from MSW placed
20 above the former Class I area (1,ARWQCB 2000).
21 2.3 Existing Landfill Design and Operation
22 The SVLRC is an existing permitted Class III,non-hazardous MSW landfill owned and operated by WMC.
23 The boundary of the SVLRC,as defined by the CIJP-3142-7 issued by the County of Ventura,encompasses
24 297 acres of which 185 acres are used for waste disposal and 112 acres are allocated for buffer area(Figure
25 2.3-1).
26 SVLRC is currently permitted to accept a combined permitted limit of 9,250 tpd which includes a maximum
27 of 3,000 tpd of disposal material and 6,250 tpd of recyclable material. Recycling operations include tipping
28 areas for materials such as green waste,asphalt/concrete, white goods(e.g., refrigerators and stoves), tires,
29 and scrap metal.
30 The existing facilities at the site include an operation and maintenance facility with fuel stations;a scale house
31 and scales; a landfill gas (LFG) flare station; a LFGTE facility; three portable office structures; and a
32 condensate knockout and leachate treatment facility.The site generally operates 7 AM to 4 PM,312 days per
33 year,but is permitted to operate from 6 AM to 8 PM,365 days per year. Under the terms of the current CUP-
34 3142-7,the facility is authorized to operate to a fill elevation of 1,118 feet above mean sea level(msl)and to
35 continue to receive waste until the designated fill elevations have been reached or until June 2034,whichever
36 comes first.
' On June 17, 1993,the SWRCB adopted Resolution No.93-62,directing each RWQCB to revise the WDRs of each MSW landfill in its
respective region to comply with the federal MSW regulations in 40 Code of Federal Regulations ICFRI Part 258 that are more stringent than
California State regulations.To comply with the Resolution,the I.ARWQCB adopted Order No.93-062 on September 27, 1993(1,ARWQCB
1993). _
Simi Valley Landfill and Recycling Center Expansion Project 2-7
Final E1R—December 2010
35
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2 Project Description
1 2.3.1 Phased Fill Plan
2 The waste disposal area at SVLRC is constructed by sequentially excavating areas called cells.A liner system
3 is installed in each new cell to separate waste from the underlying native soil.The liner system,discussed in
4 detail in Section 2.3.4.1, is comprised of seven layers. Waste is accumulated on top of the liner and then
s compacted with heavy equipment.At the end of each day,bulldozers spread a cover layer of compacted soils
6 or alternative daily cover (ADC) over that day's waste. As the active cell nears capacity, a new cell is
7 excavated and lined. Once the existing cell reaches capacity it is capped with intermediate cover(Section
s 2.3.2) and the new cell begins receiving waste. The process continues until the permitted disposal area is
9 filled to capacity at which point the entire waste disposal area is brought to final grade and covered with final
10 cover(Sections 2.3.12.1 and 2.3.12.2).
11 As currently permitted,the waste disposal area within SVLRC would be filled in four phases,starting at the
12 north end of the site and finishing at the south end. Each phase would consist of filling excavated cells and
13 excavating and lining subsequent cells as follows:
14 • Phase 1: Fill Cells B 1 and B2 and excavate and line Cell 133;
15 • Phase 2: Complete fill, achieve final grade,and landscape Cells B I through B3. Excavate and line
16 Cell D;
17 • Phase 3: Fill and achieve final grade for Cell D. Excavate and line Cell C; and
18 • Phase 4: Fill and achieve final grade for Cell C.
19 At present,Cells A through B have been completed.Cell D has been excavated,lined,and is being filled.Cell
20 C will be excavated and lined once Cell D nears capacity.
21 2.3.2 Daily and Intermediate Cover
22 Regulations specify that the active face of the landfill(i.e.,the working surface of a landfill upon which solid
23 wastes are deposited during the landfill operation)be covered at the end of each working day with at least six
24 inches of compacted soil (daily cover)or equivalent(i.e., ADC). In addition, if a face is to be left for more
25 than 180 days,a layer of intermediate cover at least 12 inches deep,or equivalent, must be placed over the
26 area. At the SVLRC,the active face receives a daily cover of compacted soil or an approved ADC. Various
27 types of ADC materials are approved for use at SVLRC,including geosynthetic tarps,processed green waste,
28 ground C&D,and treated auto shredder waste.Use of approved ADC materials minimizes the amount of soil
29 consumed for daily cover.Daily placement of soil cover or ADC is applied to control vectors(rodents,birds,
30 insects, etc.), prevent nuisance conditions(odors and blowing waste materials), and prevent landfill fires.
31 When no additional waste is scheduled to be placed on an advancing lift within 180 days or some other period
32 prescribed in the WDRs issued by the LARWQCB,the top and side slopes of the lift receive an intermediate
33 cover of 12 inches of compacted soil. The primary goal of the intermediate cover is soil stabilization and
34 visual buffering. In accordance with CUP 3142-7 Condition 102, non-native, non-invasive species(such as
35 barley)can be used for short-term erosion control on temporarily exposed slopes.
36 2.3.3 Drainage and Erosion Control
37 Runoff(rainwater from the landfill surface to surrounding areas)and run-on (rainwater flow to the landfill
38 surface or toe from the surrounding areas) is controlled by various design features. Run-on from areas
39 upgradient of landfilled waste is diverted from the landfill via a perimeter concrete-lined ditch.The perimeter
40 collection system drains to collection points near the landfill toe. Surface runoff from completed landfill
41 surfaces is captured on benches along the face of the landfill and diverted to various collection pipes located
Simi Valley Landfill and Recycling Center Expansion Project 2-9
Final EIR—December 2010
37
2 Project Description
1 below the toe of the site.'These collection points in turn discharge into the perimeter collection system on the
2 southern perimeter of the landfill proper. From this collection system,surface water flows through a 78-inch
3 corrugated metal pipe(CMP)under the access roadway.From there,the water is directed under SR-1 18 in an
4 84-inch CMP and into the Arroyo Simi.Three other small flow discharge points are located in the northeast,
5 southeast,and west portions of the landfill. Drainage to these discharge points accumulates within the CUP
6 boundary,but outside the waste footprint.Permanent landfill drainage facilities are designed to carry 100-year
7 storm runoff volumes as required by Title 27 California Code of Regulations (27 CCR) §20365.
8 A detention/sedimentation basin is located on the property north of SR-1 18 and south of the SVLRC entrance
9 road.The detention/sedimentation basin was designed to accommodate surface water flows from the facility
10 and allow sediments to settle out prior to off-site discharge.The detention/sedimentation basin is maintained
11 for adequate desilting capacity. During landfill operations, temporary berms and V ditches are placed near
12 active refuse fill areas to control surface water runoff. The temporary berms and V ditches direct surface
13 water around exposed refuse and prevent it from ponding on the refuse fill. Surface water runoff is carried
14 over temporary refuse fill slopes via oversized drains comprised of metal flumes,corrugated metal pipe,ABS
15 plastic pipe, or plastic-lined trenches. Best Management Practices (BMPs) based on the "California
16 Stormwater Best Management Practice I landbook"(March 1993)are followed to control temporary drainage.
17 The BMPs used on an as-needed basis include, but are not limited to the following: earth dikes, straw bale
18 dikes,silt fences,temporary swales and culverts,sediment traps and basins,sand bag barriers,riprap drainage
19 swales, and fabric erosion stops.
20 As the phased fill sequence progresses,the landfill surface is contoured to drain runoff to perimeter ditches in
21 order to minimize ponding on the landfill. Permanent drainage structures include, but are not limited to:
22 diversion berms, grass/concrete waterways, concrete perimeter channel, lined waterways and outlets, rock
23 outlet protection, subsurface drains/culverts, permanent detention/sedimentation basin, vegetation
24 management practices,paved parking area,and landscaping.All petroleum tanks that have potential to impact
25 stormwater are inside bermed areas.The bermed areas are designed to contain all of the liquid volume of the
26 largest tank, plus rainfall for a 10-year, 24-hour storm.
27 Vegetation management is used to minimize erosion when possible. As discussed in Section 2.3.2, interim
28 slopes that will not be disturbed for extended periods are planted with temporary non-invasive cover crops such
29 as barley or other suitable species. In accordance with standards and local practices,grass and native shrubbery
30 is planted and maintained to protect finished slopes and the final landfill cover from erosion and soil loss.
31 2.3.4 Leachate Control Provisions
32 The term "leachate" refers to liquids that collect within the landfill. Leachate results from precipitation
33 entering the landfill and from moisture that exists in the waste when it is disposed. Liquid within the waste
34 mass comes into contact with a wide variety of waste materials, some of which may dissolve or diffuse into
35 the liquid as it percolates through the waste. Some of these materials may be toxic or otherwise potentially
36 hazardous even though they are usually present in small concentrations. Leachate escaping from the base of
37 the landfill could eventually contact groundwater and potentially cause contamination. Therefore, leachate
38 control is an essential operating requirement.
39 The composition of leachate varies from landfill to landfill depending on various factors including: local
40 precipitation; age of landfill; types of wastes accepted; degree of decomposition that has occurred; and
41 physical modification of the waste(e.g.,shredding).State regulations(27 CCR§20330)require that landfills
42 control leachate migration.Generally,this is accomplished by installing a leachate barrier/collection system.
43 This typically involves a barrier liner system under a leachate collection system. A liner system is generally
44 made from low-permeability soils(e.g.,clays)or synthetic materials(e.g.,plastic geomembranes). Leachate
45 collection systems are installed above the liner and typically consist of a porous layer of gravel within which a
46 piping system sloped to drain to a central collection point is installed. From the collection point,the leachate
2-10 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
38
2 Project Description
1 is typically withdrawn and treated or otherwise used. Subsequent to treatment, leachate may be sent off-site
2 for disposal at a wastewater treatment plant, used on-site for dust control, or applied back to the landfill.
3 At the SVLRC, leachate is recirculated back to the active landfill areas that are over an engineered HDPE
4 liner. Recirculating leachate maintains a higher moisture content in the waste layers which promotes more
s rapid decomposition and increases landfill gas generation.The additional gas generated is captured for use in
6 the existing LFGTE generators which provide virtually all of the electric power the facility requires.
7 2.3.4.1 Landfill Liner
8 In accordance with 27 CCR §20330,a new landfill unit must have a liner designed and constructed to contain
9 landfill gas,waste,and leachate.The regulations specify a minimum liner design(prescriptive liner)for a Class
10 III landfill consisting of a composite liner with a lower component of compacted soil and an upper component of
11 a synthetic flexible membrane. (Exceptions are allowed for steep side slopes and for alternative designs
12 approved by the LARWQCB.) The lower compacted soil liner component must be at least two feet thick and
13 have a hydraulic conductivity of no more than 1 x 10-'cm/sec(0.1 foot per year).The upper synthetic flexible
14 membrane component must be at least 40-mils(1/1,000 inch)thick (or at least 60-mils thick if it consists of
15 HDPE and installed in direct and uniform contact with the underlying compacted soil component).
16 Until December 2009,the LARWQCB had approved the use of both prescriptive and alternative liner designs
17 for use at SVLRC. The floor(bottom)and side slope liners allowed are described as follows:
18 • 1-loor Liner(prescriptive).The prescriptive floor liner system consists of(from the bottom up)a 24-
19 inch compacted clay liner, a 60-mil HDPE liner, a geotextile, a 12-inch leachate collection and
20 removal system (LCRS)drainage layer, a geotextile, and a 24-inch protective soil layer.
21 • Floor Liner(alternate).The alternative liner design consists of a geosynthetic clay liner(GCL)and
22 80-mil HDPE liner. The rest of the liner system (e.g. leachate collection layer) is the same as the
23 prescriptive design.
24 • Side Slope Liner(prescriptive). The proposed side slope liner system consists of(from the bottom
25 up)a GCL, a 60-mil HDPE liner, a geotextile, and a 24-inch protective soil layer.
26 • Side Slope Liner(alternate).The alternative side slope liner design consists of an 80-mil HDPE liner.
27 In many cases, GCLs have become an accepted alternative to the 24-inch compacted clay liner. GCLs
28 generally provide lower hydraulic conductivity than compacted clay liners and are less susceptible to
29 desiccation cracking than compacted clay. GCLs are comprised of a granular sodium bentonite(clay) layer
30 encapsulated between two woven or non-woven geotextiles depending on needed strength.The geotextiles are
31 bonded by either glue or a process called needle punching. In the field,GCL is placed dehydrated(moisture
32 content of approximately 20 percent)and covered with the HDPE layer the same day the GCL is deployed.
33 The bentonite swells as it hydrates (absorbs moisture) from the underlying soils. The confining pressure
34 created by the I iDPE layer causes the GCL to create a barrier with very low hydraulic conductivity.
35 "Typically,GCLs have a permeability less than 1 x 10-9 cm/sec and are equal to 2.8 feet of compacted clay with
36 permeability 1x10-' cm/sec.
37 However,the LARWQCB recently concluded that GCL`would not afford the same protections to groundwater as
38 the prescriptive liner system"(two feet of clay overlaid by HDPE)due to"recently observed deficiencies on GCL
39 at several landfills ... and the concerns that certain mechanical and chemical properties of GCL may not be as
40 reliable as a compacted clay liner"(LARWQCB 2009).Therefore,unless the LARWQCB approves an alternative,
41 a prescriptive liner would be necessary in future expansions of the existing landfill.Note that the alternate side
42 slope liner continues to be approved.The currently approved liner design is depicted in Figure 2.3-2.
Simi Valley Landfill and Recycling Center Expansion Project 2-11
Final E1R -December 2010
39
CEOCOMP061TE DRAINAGE LAYER
(ONE-SIDED GEOTEXTILE ON TOP) 2 FT.(MN.)
W PROTECTM OEOTEXIILE(1)
OPERATIONS LAYER - 2 FT.(MN.)
OEOTEXME )S IO N
(11.5 02/yd T) OPF]UTIONS.
LAYER(2 /
q8-;0k-4L ;GE 2 Fr.(MIN.)f�ACTED SOIL K<Y■10 M/A 60 MIL HOPE fEONEMBRANE
�\\/\\\//'' ...../ �2 (SMOOTH ON TOP.TEXTURED ON BOTTOM)
SIIBCRAOE� .. - /_/� OEOSYNTHEnC CLAY LINER NOTES:
AGE 1. PUCE UV PROTECTION GE07EXILE IMERE
UNDERLYING GEOSYNTCTICS ARE DOSED.
' 2 OPERATIONS TO EXTEND TO MAXIMUM
TYPICAL BASE 2 TYPICAL SLOPE LINER VERTICAL HEIGHT OF 10 FT.ASM BASE
N.T.S.
-2 C-6 N.T.S.
DEOIFXRE CXN9g1 UV PROTECTION OEOTEXTBE ao ML NODE GEOMDARA E
(9100TH ON TOP.TEXTURED ON BOTTOM)
FT.
OEOTEXIBE CLOWN
N.)
OEOCOMPOIE"AGE UYET
(9100TH ON p AXMON
BOTTOM /
2 1
</ (IEXIMAED ON B0 .OPERAWNS / 2
-!O- OE(X:OIP09TE DRANAOE LAYER 10 R. / \ _ ...LAYER "/ ,I��
60 ML HOPE tEOMEMBRAlE (LAY LNIR
(IEXTXBD BOTH 9DEi) 2 2 FT. i
CEOTEXRF FILTER OPERATION!
2 R.i - / 1 COMPACTED SOL
(NHN) _-•-�y��... 2 OAr uRR LINOR .TCan/.2 .
2 R.
DRNNACE AGGREGATE VARIES
6•0 PERFORATED MIMI HONE PIPE 1. FT. 1.5 FT. TYPICAL TOE LINER TRANSITION TYPE JL
TYPICAL TOE LINER TRANSITION TYPE -2 C-S N.T.S.
-2 C- N.T.S
I/Y TNO PLYWW
b ML NME dINNAQ OIAMQ ME
NE70MAIE 1
E aOPINUM 22 2
M'•Otl Itl[IaORAIm PP6 N�fML.p10 CAT OIQ _ _ _ l
UV��[ O11F11 6AOOE} _ E FT.,(MN)` D B' M.)
.NM■T � B6NOm peneM Willi
s r.r MA. 1.4
M rt.Mb
_ 1•b'M
\�. MlMnueE i JI «aNr ®
1 ,R
4100000=MRAWm
I
b TYPICAL LCRS TRENCH 2
-:c-5 N.T.S. -2 t- 6 LINER RMINATION TYPE I (BENCH) CHANNEL B IIIOIM. o(inch")
-2 C-S N.T.S. TYPE 1 12 24
Source: Golder Associates 2010
Figure 2.3-2. Liner and Leachate Collection & Removal System
I�
0
2 Project Description
t As noted in Section 2.2.2, portions of the landfill that operated prior to the promulgation of regulations
2 specifying liner designs were unlined. In 1990-91,pursuant to LARWQCB Order No.90-034,a clay cap was
3 constructed over all parts of the former Class I area that had received waste. MSW may be placed over this
4 area, but only in areas under which a compliant liner system has been installed to ensure that leachate is
s confined within the landfill.
6 2.3.4.2 Leachate Barrier/Collection and Removal System
7 Leachate is collected in two ways at SVLRC,through a toe barrier system and the LCRS.Leachate collected
s from the toe barrier system is treated and used as dust control while leachate collected from the LCRS is re-
9 circulated into the landfill. Each of these systems is described in detail below.
0 2.3.4.2.9 Toe Barrier System
ii In 1986, a leachate barrier/collection system was installed at the southerly toe of the landfill in the canyon
12 base to intercept and extract leachate from the canyon alluvium underlying the landfill,thereby preventing
13 potential off-site migration of leachate. The canyon alluvium is considered to be the primary groundwater
14 migration pathway for constituents should a release occur from the landfill. The system consists of the
15 following elements:
16 • A 12-foot thick, subsurface compacted clay barrier keyed a minimum of five feet into bedrock
17 extended across the canyon mouth immediately downslope of the landfill toe;
is • A leachate collection drainage layer,subdrain,and sump installed on the landfill side of the barrier;
19 and
20 • A pump,discharge piping,and storage tank to remove and store leachate for disposal or treatment for
21 dust control through an activated carbon system.
22 Leachate that flows down-canyon in the alluvium beneath the landfill is intercepted by a 12-inch layer of
23 drain rock placed on the up-canyon side of the barrier.Filter fabric placed beneath and on top of the drainage
24 blanket prevents fine clay and silt particles from filtering into and plugging the drain rock.Fluids intercepted
25 by the drainage blanket are conveyed to a leachate collection trench that contains a four-inch perforated
26 polyvinyl chloride(PVC)pipe,surrounded with drain rock and encapsulated with filter fabric.The leachate
27 collection drain carries leachate to a six-foot-diameter precast manhole constructed with a concrete base
28 poured in place. The manhole has a storage capacity of 1,200 gallons below the leachate collection trench
29 discharge flow line.
30 A 12-foot-thick subsurface compacted clay liner,which is keyed at least five feet into the competent bedrock,
31 provides a barrier to down-canyon migration of leachate. A submersible pump is positioned in the manhole
32 with electrical controls set to activate or shut down the pump in accordance with the fluid elevation in the
33 manhole.The pump discharges through a force main to a 500-gallon storage tank positioned adjacent to the
34 manhole.From this tank,the liquids are treated through a series of granulated carbon filters(three units)into
35 two, 5,000-gallon holding tanks. Sampling ports are located at the entrance to the first filter, between each
36 filter,and at the exit location of the third filter.These ports are used to monitor the treated liquid contaminant
37 levels and to evaluate whether organic compounds have broken through the carbon filters.The treated liquid
38 is pumped from the larger tank into a water truck for use as dust control. Use of the treated leachate for dust
39 suppression is authorized by the site's WDR Order No. 00-092. Prior to use, the liquid must meet all
40 conditions of Provision F of the WDR,which references Maximum Contaminant Levels(22 CCR§64435 and
41 64473).
Simi Valley Landfill and Recycling Center Expansion Project 2-13
Final EIR—December 2010
41
2 Project Description
1 2.3.4.2.2 Leachate Collection and Removal System
2 In 2002,an expansion of SVLRC was approved under CUP-3142 Modification Number 6.The design ofthis
3 expansion area included a LCRS that would collect leachate in accordance with prescriptive and alternative
4 designs allowed under 27 CCR §20330(Figures 2.3-2).
s The prescriptive LCRS is placed over the bottom liner. The design consists of the following elements from
6 bottom to top:
7 • A geotextile(filter fabric)placed over the liner;
8 • A 12-inch drainage layer of permeable material having a(high) hydraulic conductivity of 1 x 10-z
9 cm/sec, or greater;
10 • A geotextile fabric placed over the drainage layer, designed to prevent overlying material from
11 entering the drainage layer voids; and
12 • A 12-inch layer of soil to separate and protect the drainage layer from displacement by the waste fill;
13 waste is placed over the protective soil.
14 A system of perforated PVC or HDPE pipe is installed within the drainage layer to expedite the collection of
15 leachate that drains from the landfill.Leachate collection sumps are underlain by a composite liner consisting
16 of 60-mil HDPE over a 24-inch clay layer(hydraulic conductivity of 1 X 10-7 cm/sec,or less).This composite
17 liner system provides extra containment protection in areas where leachate would pond.Positioned within and
18 on the perimeter of the landfill, each sump is equipped with a riser pipe extending from the sump to the
19 ground surface.The riser pipes are installed in shallow, lined trenches excavated into the perimeter 2:1 slope
20 or placed directly on the lined 2:1 slope.
21 Leachate collected from the sumps is re-circulated into the landfill at designated liquid injection points(LIPs).
22 These LIPs are located over lined portions of the landfill with a LCRS. Recirculation of leachate for current
23 landfill operations was approved by the LARWQCB in a letter dated December 21, 2001.
24 2.3.5 Waste Delivery and Processing
25 The different types of waste, methods of delivery, processing, and disposal and or reuse of MSW and
26 recyclable materials are discussed below. Table 2.3-1 provides an overview of the tpd of MSW and
27 recyclables received at SVLRC.In each case the waste received is weighed and specific information about its
28 origin documented at the weigh station. In some cases the trucks bringing material in are reloaded and sent
29 outbound with material. For example, some transfer trucks leave the landfill empty after disposing of their
30 waste and then go to the off-site GI Rubbish hauling yard and pick up recyclables.Additionally,some of the
31 trucks picking up processed green waste or commodities from C&D from SVLRC may have brought trash or
32 C&D to SVLRC as an inbound load. However, this only applies to a small percentage of the material
33 currently removed from the site.
Table 2.3-1. Average Tons per Day of MSW and Recyclables Received at SVLRC
Waste Type Tons per Da (t pd) Percent of Total
Municipal Solid Waste 2,521 70.19
Rec clables 1,070 29.81
C&D debris 213 5.94
Greenwaste 233 6.47
Treated Auto Shredder Waste _ 551 15.35
Inert concrete,soil,etc 73 2.04
Total 3,592 100.00
.Source: Derived from WMC 2008a
2-14 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
42
2 Project Description
1 FIGURES REPLACED
2 (Revised liner consists of 2 feet of clay under HDPE base liner—see new Figure 3.3.2)
3 2.3.5.1 Municipal Solid Waste
4 Municipal solid waste is received at SVLRC via four methods: packer trucks, roll-off bins and Instabins
5 (three, four, 10, 25, and 40 yard containers), transfer trucks (20 ton loads), and individual residential or
6 commercial vehicles(passenger cars/trucks). The majority of the MSW is received in packer trucks, which
7 collect from residential,institutional,and commercial generators.Packer trucks hold eight to 10 tons of waste.
s Transfer stations are a consolidation point for multiple origins of waste. Typically, the transfer stations
9 receive material, sort out the recyclables, and send the residual MSW to SVLRC in a transfer truck.
10 Each load of waste is weighed and specific information about its origin is documented at the weigh station.The
11 waste is then placed into the active disposal area where heavy equipment crushes and compacts the wastes into
12 the disposal cell(Section 2.3.1).This process forms a tightly-packed layer of waste.At the end of each day,a
13 cover layer of compacted soils, tarps, or ADC is placed over that day's waste. The daily covering keeps the
14 waste in place and discourages scavengers.Currently, SVLRC receives approximately 2,521 tpd of MSW on
15 average(Table 2.3-1).
16 2.3.5.2 Recyclable Material
17 The SVLRC engages in recycling operations that include C&D debris, green wastes, treated auto shredder
is waste, tires, white goods (e.g., refrigerators and stoves), and scrap metal. These recycling areas include
19 separate tipping areas for each recycled commodity.Currently,SVLRC receives approximately 1,070 tpd of
20 recyclable materials(Table 2.3-1).
21 2.3.5.2.1 C&D Debris
22 The existing C&D recycling facility accepts co-mingled C&D waste. Items accepted include non-hazardous
23 materials such as cardboard,drywall, flooring,roofing materials,tile and windows,dirt,concrete,asphalt and
24 wood/green waste. Bulk loads are weighted,and origin information is documented upon entry to the landfill.
25 Any trash mixed in with the loads is removed,loaded into trucks,weighed,and disposed of in the landfill.Any
26 wood mixed in with the loads is removed, loaded into trucks,weighed,and sent off-site with the green waste
27 discussed in Section 2.3.5.2.2.The remaining C&D material is then processed on-site.Processed C&D material
28 is sent off-site and/or reused on-site.as ADC,which is weighed and accounted for as cover in the landfill.
29 2.3.5.2.2 Green Waste
30 Green waste accepted at SVLRC includes clean wood,dimensional lumber(no painted or treated wood),tree
31 trimmings,grass,and other plant matter. These materials are weighed,and origin information documented
32 upon entry to the landfill. Trucks unload the material in the green waste area. Any trash mixed in with the
33 loads is removed, loaded into trucks,weighed,and disposed of in the landfill.The remaining green waste is
34 processed in a tub grinder. A portion of the processed green waste is used on-site as mulch and/or as ADC.
35 The green waste used as ADC is weighed and accounted for as cover in the landfill. The remaining green
36 waste is transported off-site to local farms and composting facilities or to the Central Valley where it is used
37 as fuel.
Simi Valley Landfill and Recycling Center Expansion Project 2-15
Final EIR—December 2010
43
2 Project Description
1 2.3.5.2.3 Treated Auto Shredder Waste
2 SVLRC accepts treated auto shredder waste which is stockpiled within the active waste disposal area and
3 used as ADC."Treated auto shredder waste is the waste produced at metal shredding facilities large enough to
4 shred an automobile.Treated auto shredder waste consists of glass,fiber,rubber,automobile fluids,dirt,and
5 plastics.These materials are treated to nonhazardous levels using metal fixation treatment technologies prior
6 to delivery to the landfill.
7 2.3.5.2.4 Tires
8 SVLRC typically receives approximately two to three tires per day from local residents.Approximately four
9 roll-off bins per year of tires are sent off-site to I,os Angeles County for recycling and/or disposal. Per CUP-
t0 3142 condition 64, tires may be stored onsite for up to 120 days. All tires stored for periods exceeding 30
tl days must be stored in covered trailers near the active disposal area. All tires stored for 30 days or less are
12 stored in open roll-off bins. No more than 499 tires are stored at the facility at a given time.
13 2.3.5.2.5 White Goods/Scrap Metal
14 SVLRC typically receives approximately five to seven appliances per week from local residents, all are
15 recycled offsite. A small number of loads of white goods(approximately 12 loads per year)are sent to Los
16 Angeles for recycling.
17 2.3.5.2.6 Inert Material
18 SVLRC received approximately 73 tpd of"inerts"(e.g.,clean dirt and clean asphalt/concrete)(Table 2.3-1).
19 The clean dirt can be used as daily cover. In addition,the clean dirt and clean asphalt/concrete are reused to
20 build roads within SVLRC.
21 2.3.6 Utilities
22 2.3.6.1 Water Supply
2.3 The SVLRC is served by Ventura County Waterworks District No. 8(which is managed by the City of Simi
24 Valley).District No. 8 is a member of the Calleguas Municipal Water Distric(CMWDJ.The main source of
25 water for District No. 8 is supplied by CMWD from the Metropolitan Water District of Southern California
26 (MWD) and the State Water Project (City of Simi Valley 2008). The CMWD is considered a permanent
27 source of water by the County of Ventura(Ventura County 2006).
28 In current operations,approximately 16.3 million gallons of potable water and 11 million gallons of reclaimed
29 water are supplied to SVLRC by CMWD annually. The amount can vary considerably from year to year.
30 Approximately 4 million gallons of potable water is supplied to the off-site GI Rubbish hauling facility
31 annually by CMWD.While this is currently an ofd site use,the GI Rubbish operation is proposed to be moved
32 to the SVLRC site as part of the proposed project and this water use would be discontinued at the current GI
33 Rubbish location.
34 2.3.6.2 Domestic Wastewater
35 The SVLRC is not currently connected to a public sewer system.Outdoor portable toilets,which are cleaned
36 out weekly by a sanitary services vendor,are provided for public use.Employees use sanitary facilities in the
37 maintenance building, scale house, and office trailer. An employee shower is also available in the
38 maintenance building. Domestic wastewater generated by the employee sanitary facilities is disposed via an
39 individual sewage disposal system (septic tank) located behind the maintenance facility. The system is
2-16 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
44
1 Project Description
I operated in compliance with applicable sections of the Ventura County Building Code as enforced by the
2 EHD. In addition, there is a permitted leach field located north of the gas flare station.
3 2.3.6.3 Electricity and Natural Gas
4 SVLRC has no natural gas line connections.The SVLRC currently generates a portion of its own electricity
5 using an on-site LFGTE facility. Southern California Edison (SCE) provides additional electricity when
6 needed via an overhead 16-kilovolt(kV)transmission line to power distribution panels located in the existing
7 maintenance facilities. The facility is part of the SVLRC landfill gas control system and includes two pre-
8 packaged 1.35-megawatt(MW)electrical generation systems.The LFGTE facility maintains the SVLRC on-
9 site load requirement and excess electricity is delivered to SCE when available. Currently, the landfill
10 produces LFG in excess of what can be processed in the existing LFGTE system.This excess landfill gas is
11 incinerated in an on-site flare. In 2009,the facility generated 12.6 million kilowatt hours(kWh)of electricity
12 and consumed 2.6 million kWh.
13 2.3.6.3.1 Landfill Gas to Energy Operation
14 Landfill gas is a by-product of the decomposition processes that occur following burial of organic waste
15 materials.LFG typically contains 30 to 60 percent methane(by volume),up to 45 percent carbon dioxide,and
16 trace amounts of other organic compounds.Rather than allow landfill gas to migrate to the atmosphere,a LFG
17 recovery system is installed in the landfill. In addition to minimizing atmospheric release, collection and
18 utilization of LFG also has the added benefits of limiting subsurface LFG migration from the landfill to off-
19 site areas and being a fuel source for the LFGTE operation.
20 Construction of a LFG recovery collection system was initiated in 1988 and has been expanded periodically
21 as the waste fit was plaeedwas disposed. The system consists of a network of vertical gas extraction wells,
22 horizontal extraction trenches, collection header pipes, and two flare stations. Gas collected in both the
23 vertical wells and horizontal trenches is extracted using two blowers,one primary and one back up.The LFG
24 is transported to the recovery facility via a common collection header pipe. Moisture accumulating in the
25 header pipe(condensate)is collected at the low point of the collection header piping system and is disposed
26 of through a condensate collection and disposal system in accordance with provisions contained in the WDRs.
27 The gas-recovery equipment was permitted,installed,and operated in accordance with applicable air pollution
28 and noise control requirements. Prior to installation of the LFGTE units,all of the LFG collected in the LFG
29 recovery collection system was burned in the two flares.
30 In 2004 the existing LFGTE facility was constructed at SVLRC.The LFGTE facility uses the energy of LFG
31 that is otherwise lost through flaring to generate electricity and,thereby,reduce reliance on external electricity
32 suppliers as well as to produce excess electricity that can be sold to electricity suppliers for off-site use.LFG
33 in excess of the generating capacity of the LFGTE facility is diverted through the two flares.
34 Incoming gas from the LFG recovery collection system passes through the gas treatment unit to remove
35 practically all moisture and create as dry a fuel as possible. Condensate (liquid that drops out of the gas
36 stream) is collected and conveyed to the condensate collection and disposal system that supports the flare
37 station. This system includes a 1,000 gallon three-phase separator tank, a 1,500 gallon hydrocarbon
38 condensate storage tank, and a 10,000 gallon wastewater storage tank. The treated LFG fuels an internal
39 combustion engine that drives a generator,producing electricity.Electricity(at 4,160 kV)is routed through a
40 switchgear that either: 1) directs it to support on-site loads (stepped down to 480 volt to power blowers,
41 absorption chillers, nearby offices,and other on-site uses);or 2)directs it through a step-up transformer to a
42 power distribution line to a connection with the electrical utility grid.
43 The LFGTE facility operates 24 hours a day,seven days a week,52 weeks a year. Each LFGTE generator is
44 removed from service for approximately six to eight hours per year for maintenance. The generators and
Simi Valley Landfill and Recycling Center Expansion Project 2-17
Final EIR—December 2010
45
2 Project Description
I ancillary equipment is contained within an approximately 90 feet wide by 175 feet long six-foot-high chain
2 link fence with gates to allow personnel and equipment access for maintenance.
3 2.3.7 Environmental Control Measures
4 The SVLRC is required to comply with a variety of plans and programs to reduce the impacts of operation on
5 both the work area and surrounding area as conditions of CUP-3142-7. Programs include,but are not limited
6 to a: groundwater and leachate monitoring program; gas emissions control and monitoring program; wind
7 monitoring program; noise abatement plan; visual impact mitigation program; fire protection program;
s seismic design;clay and cover availability study; site sign program; noise abatement plan; hazardous waste
9 exclusion program; radioactive waste exclusion program;emergency procedures program;on-site drainage
10 control plan; and stockpile plans. Several of these programs are outlined below.
11 As a part of the routine daily activities, the site supervisor periodically inspects the facility to ensure the
12 operation is in compliance with applicable regulations, especially 27 CCR §20005-20890, and standard
13 operating policies.
14 2.3.7.1 Odors
15 An Odor Control Plan for the SVLRC was approved in May 2003. The Plan contains a description of
16 landfilling procedures used to minimize odor generation, such as daily covering of refuse with ADC, as
17 approved by the FHD and the Planning Division, minimizing the area of the active face,and collection and
18 flaring of landfill gas.The Plan also identifies steps to be taken to mitigate odors in the event of a complaint.
19 In 2000,WMC installed an odor control system in an area along the east CUP boundary perimeter where the
20 topography includes two low points(saddles)in the ridgeline confining the landfill.The odor control system
21 consists of a series of flexible hose lines equipped with fogging/misting nozzles deployed on utility poles up
22 to 30 feet above ground. An odor control product mixed with water is emitted from the nozzles when
23 warranted by landfill operations and wind conditions. The Material Safety Data Sheet (MSDS) for this
24 product is provided in Appendix A.
25 2.3.7.2 Litter
26 Litter is controlled by compacting and covering the waste daily. Additional preventative measures to
27 minimize litter include the following:
28 • Temporary and permanent fencing to trap windblown materials;
29 • Periodic inspection and cleanup of the site and surrounding area to ensure the ongoing cleanup
30 program is effective in collecting any litter that may have escaped; and
31 • Portable windscreens near the active face during windy weather.
32 2.3.7.3 Dust
33 A Dust Suppression Plan (DSP) was approved by the Planning Division in 2003. The Plan contains a
34 description of procedures used to minimize dust generation including:
35 • All unpaved areas would be watered (or treated with environmentally safe dust control agents) as
36 often as necessary to minimize the amount of fugitive dust that blows off-site.
2-18 Simi Valley Landfill and Recycling Center Expansion Project
Final E1R—December 2010
46
1 Project Description
1 • All inactive areas,including all intermediate slopes,would be covered with processed green waste,or
2 hydroseed,or both, or treated with environmentally safe dust suppressing agents, to minimize dust
3 and erosion.
4 • All but essential site activities and operations would cease during high wind events(i.e.,wind speed
s sufficient to cause fugitive dust to impact adjacent properties).
6 • Vehicle speed on all unpaved areas would be limited to no more than 15 miles per hour.
7 Currently, a water truck is used within the SVLRC to wet down internal roads, including temporary
s unsurfaced disposal cell access routes.This would be continued under the proposed project.Water trucks are
9 filled at one of three existing fill pipes. Two of these fill pipes are connected to the potable water supply
10 system and one fill pipe is connected to the reclaimed wastewater delivery system operated by the City of
11 Simi Valley. SVLRC also uses treated leachate for dust suppression in accordance with State requirements.
12 Leachate is presently collected at the base of SVLRC at an annualized daily average of approximately 2,222
13 gallons per day(Psomas 2007a, b).
14 2.3.7.4 Vectors
15 Vector control is undertaken to prevent propagation, harborage, or attraction of vectors such as flies, rats,
16 field rodents, mosquitoes, wasps, cockroaches, and birds. A vector control program is currently in place as
17 required by the landfill's existing SWFP. This is accomplished by a combination of methods including
18 placement of daily cover(i.e.,compacted soil)and/or ADC(i.e.,geosynthetic tarps,processed green waste,
19 ground C&D,and treated auto shredder waste)over the active landfill face at the end of each day.In addition,
20 periodic inspections are conducted to determine levels of various vectors. Uncovered waste can be an
21 attraction for birds,such as crows and gulls.This can become a nuisance because large birds such as these can
22 carry off waste then drop it,causing a litter problem.In addition,nuisance birds are controlled by a variety of
23 noise-making devices and other harassment methods including falcons and owls whose presence discourages
24 other birds.
25 2.3.7.5 Visual
26 A Visual Impact Mitigation Program(VIMP)was approved by the Planning Division in May 2003.The Plan
27 provides a description of how the landfill operations will be effectively screened from the view as seen from
28 SR-118 and surrounding properties.Additionally,it outlines measures to mitigate visual impacts of the refuse
29 column including landscaping on specified refuse column elements throughout the site and the rounding of
30 slopes on the refuse column at changes in slope angles.
31 2.3.8 Administrative Record Keeping
32 Current record keeping procedures are expected to continue throughout the life of the proposed landfill
33 expansion.Detailed records of vehicles accessing the site are maintained and made available for inspection by
34 the Ventura County Resource Management Agency(VCRMA)upon request.This daily log for all incoming
35 vehicles includes the following information: number and type of vehicles; time and date vehicle arrived at
36 facility; load ticket number; load weight; minimum fee vehicles; and vehicles refused entry with loads
37 containing hazardous materials.
38 A report of disposal site records is submitted monthly to the VCRMA in accordance with the requirements of
39 27 CCR §20510. This report, which contains information on waste types and volumes received, is used to
40 forecast the rate of site filling.
41 Similarly, a report containing information on quarterly waste volumes received and results of groundwater
42 quality testing is submitted regularly to the I,ARWQCB.
Simi Valley Landfill and Recycling Center Expansion Project 2-19
Final EIR—December 1010
47
2 Project Description
1 2.3.9 Staff Training Program
2 Employee-training is required for the personnel involved in the Hazardous Waste Exclusion Program. The
3 training program includes information on the identification, safety measures, and reporting procedures for
4 hazardous material. Retraining occurs on a schedule approved by the Ventura County Planning Director for
5 all new and existing landfill employees.
6 2.3.10 Site Security
7 To prevent unauthorized entry,site control personnel screen customers as they arrive at the site.Only those
8 individuals with legitimate business at the facility are allowed entry.Verbal instructions from the site control
9 personnel, coupled with a series of signs, direct customers to the appropriate disposal area.
10 The site perimeter is fenced in its entirety except where natural barriers preclude access. Gates are provided
11 where necessary.In addition,video cameras monitor the scale,office,and maintenance areas 24 hours per day.
12 2.3.11 Environmental Monitoring
13 The SVLRC is subject to various state and local regulations pertaining to environmental monitoring at the
14 site. Specific monitoring requirements include water quality, landfill gas migration, and air quality.
15 2.3.12 Site Closure
16 The final closure of the SVI_RC would be conducted in accordance with federal and state regulatory
17 requirements and in accordance with the facility's Closure and Post-Closure Maintenance Plan.
18 2.3.12.1 Final Grade
19 The top surface of the SVLRC would have a minimum grade of three percent to provide positive drainage of
20 surface water runoff. The SVLRC final cover side slopes would be constructed at inclinations of no greater
21 than 3:1 (horizontal: vertical) and would incorporate 15-foot wide benches every 50 vertical feet. The
22 maximum final cover elevation is proposed to be 1,118 feet above msl.
2-3 Surface water control features in the form of lined and unlined drainage diversion ditches(V-ditches)would
24 be installed along the benches to intercept surface runoff from native and developed landfill slopes. The
25 diversion ditch would convey surface water runoff to designated low points along each bench where
26 downchute inlet structures would be located. Drainage would be directed from the downchutes to the
27 permanent perimeter channels for conveyance around the landfill footprint to one of the
28 detention/sedimentation basins. The V-ditches could be unlined or lined with erosion control fabric or
29 concrete.
30 2.3.12.2 Final Cover
31 Once the SVLRC reaches final grade,as described in Section 2.3.12.1,a final cover system would be installed
32 in accordance with 27 CCR§21090.The prescriptive standards(minimum requirements)for the final cover
33 are as follows:
34 Soil Foundation Layer: Two feet of appropriate materials compacted to the maximum density
35 obtainable at optimum moisture content in accordance with accepted civil engineering practice.
36 • Low-Hydraulic-Conductivity Layer: One foot of soil containing no waste or leachate, which is
37 placed on top of the foundation layer and compacted to attain an hydraulic conductivity of either
2-20 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
48
2 Project Description
1 1 x 10-6 cm/sec(i.e.,one foot per year)or less, or equal to the hydraulic conductivity of any bottom
2 liner system or underlying natural geologic materials, whichever is less permeable.
3 • Erosion-Resistant Layer: A vegetative layer consisting of one foot of soil capable of sustaining
4 native, or other suitable, plant growth.
s State regulations allow engineered alternatives to the Title 27 prescriptive final cover provided that it is
6 consistent with the performance goal of the prescriptive standard and affords equivalent protection against water
7 quality impairment. For the SVLRC, an alternative evapotranspirative final cover has been approved by the
8 LARWQCB under 27 CCR §21090. An evapotranspirative cover(also called a monolithic or an alternative
9 earthen cover)is one in which the cover soil is of sufficient thickness that the annual evaporation of naturally
10 occurring moisture from the cover layer is at least equal to the annual percolation of rainfall through the cover
11 soil. In this way,evapotranspiration(the combination of evaporation from the soil surface and transpiration of
12 moisture to the air by plants growing on the surface)balances rainfall and water does not enter the waste mass
13 beneath the cover. The alternative final cover details are depicted conceptually in Figure 2.3-3.
14 The evapotranspirative final cover would consist(from the waste layer up to the surface)of four to five feet of
15 soil vegetated with native plants.The design of the evapotranspirative cover involves a soil layer sufficiently
16 deep that the percolation of rainwater through the layer would be less than the annual evapotranspiration loss
17 of water to the atmosphere,thereby preventing water from entering the waste mass.An additional one foot of
18 topsoil may be added in certain locations to provide more suitable conditions for plant growth.
19 As outlined in the landfill's Closure and Post-Closure Maintenance Plan,the final cover must be planted with
20 drought tolerant native vegetation that sustain native wildlife habitats.However,the cover soil layer does not
21 provide adequate soil depth to establish large shrubs and trees.Thus,vegetation would consist predominantly
22 of shallow rooting plants.Deep rooted plants would only be used on the 2:1 fill slopes.Vegetation would be
23 irrigated with a permanent,low-precipitation rate irrigation system during the establishment period(i.e.,up to
24 five years after installation).The south-and west-facing slopes may require supplemental irrigation during the
25 summer months because of greater sun exposure.
26 2.3.12.3 Post-Closure Maintenance and Monitoring
27 WMC has an existing Closure and Post-Closure Maintenance Plan to ensure protection of the surrounding
28 environment during the closure period(a minimum of 30 years after the last wastes have been deposited).The
29 Closure Post-Closure Maintenance Plan is part of the landfill's Joint Technical Document(JTD)prepared in
30 accordance with 27 CCR in support of obtaining a SFWP from the CIWMB and a WDR from the
31 LARWQCB(GeoSyntec Consultants 2002).In general,the inspection program consists of routinely checking
32 for the following:
33 • Evidence of ponded water at any point on the disposal site;
34 • Evidence of erosion and day-lighted(exposed)waste;
35 • Evidence of leachate or water entering or leaving the disposal site;
36 0 Evidence of the site facilities needing maintenance,including drainage structures and final cover;and
37 • Corrections of deficiencies found during inspections will be made promptly, in accordance with
38 applicable regulations.
39 Water quality monitoring during the post-closure period would be continued in accordance with the
40 provisions of 27 CCR§20380(d),as formulated by the LARWQCB in the WDRs. Likewise,air quality and
41 subsurface LFG migration monitoring would be performed according to the mandates of the Ventura County
42 Air Pollution Control District(VCAPCD)and EHD, respectively.
Simi Valley Landfill and Recycling Center Expansion Project 2-21
Final EIR—December 2010
49
r4ADOn rn'DFpSEID rix
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Source: Carter,Romanek Landscape Architects,Inc. 2008
Figure 2.3-3. Evapotranspirative Alternative Final Cover Design
Ln
0
2 Project Description
I The front face of the landfill would be landscaped in progressive stages with native vegetation,thus blending
2 with the surrounding countryside.The top of the landfill would be seeded in accordance with the requirements
3 of the updated Closure and Post-Closure Maintenance Plan(as part of the JTD)to be submitted to the I1"A,
4 the Ventura County El ID.The revegetation requirements must be consistent with CUP-3142-7 Condition 43
5 (VIMP)subject to review and approval by the Planning Director.
6 The closed landfill site will provide 235 acres of open space. WMC would consider various open space uses
7 in coordination with the County,the City of Simi Valley,and other local and regional agencies as appropriate,
s but retains the right to specify the prospective ultimate use of the site, subject to appropriate entitlements.
9 2.3.12.4 Closure and Post-Closure Fund
10 WMC is required(by Condition 24 of CUP-3142-47)to establish and fund a-and site ek)S a leReF Of eFedit
it provide the State of California with a site closure surety
12 bond; to ensure that funds are available to perform landfill closure and post-closure maintenance. WMC
13 established a 'ifle Of ffedit surety bond reviewed and monitored by the Ventura County lHteglated waste
14 Management DivisionannuallyPlanning Division.
15 2.3.12.5 Post-Closure Use of the Site
16 After closure, the areas of the SVLRC that contained waste would become vegetated, non-irrigated open
space.The site would be revegetated with native drought-tolerant vegetation to stabilize final cover,prevent
18 erosion,and protect public health and safety.The vegetation would be consistent with the evapotranspirative
19 final cover and would blend in with the surrounding landscape. Site structures such as the existing office
20 building,maintenance building,fueling facility,flare station,and parking lot would remain in place following
21 closure to help assist with post-closure maintenance activities.
22 As required by 27 CCR §21190(c),all proposed post-closure land uses of SVLRC,other than non-irrigated
23 open space,shall be submitted to the LEA,LARWQCB,VCAPCD,and local land use agency for review.The
24 LEA must review and approve proposed post-closure land uses if the proposed use involves structures within
25 1,000 feet of the waste disposal area,structures on top of waste,modification of the low permeability layer,or
26 irrigation over waste.
27 2.4 Proposed Project — SVLRC Expansion Project
28 The purpose of the proposed project is to provide waste disposal capacity within Ventura County to meet the
29 County's current and projected waste diversion and disposal needs consistent with the goals and policies of
30 the Ventura County General Plan,Ventura County Integrated Waste Management Plan,the requirements of
31 Assembly Bill (AB) 939, and other California waste management laws and regulations. The specific
32 objectives of the proposed project include the following:
33 • Provide solid waste transformation and disposal facilities consistent with the Ventura County General
34 Plan and support programs facilitating compliance with diversion requirements of Assembly Bill
35 (AB)939 [General Plan and AB 939].
36 • Ensure continuous solid waste disposal capacity for solid wastes generated within the County that
37 cannot be reduce,recycled,or composted to meet the County's current and projected waste disposal
38 needs [General Plan Goal 4.4.1-1, Countywide Siting Element of the CIWMP].
39 • Provide a waste disposal and diversion operation that is designed and conducted in a manner that
40 complies with local, state, and federal regulations and plans; protects the natural environment;
41 ensures protection of the public's health,safety and welfare;and is compatible with the surrounding
42 land uses [General Plan Goal 4.4.1-2 and 4.4.2-5].
Simi Valley Landfill and Recycling Center Expansion Project 2-23
Final E1R—December 2010
51
2 Project Description
t • Minimize incompatibilities between industrial and residential land uses.
2 • Minimize adverse impacts on environmental resources.
3 The proposed project is to expand the SV LRC and is comprised of five main components: 1)expanding the
4 physical limits of the landfill (CUP boundary, landfill footprint, and elevation); 2)extending the operating
s limits and life of the site(increasing the waste disposal capacity);3)constructing a support/ancillary facility
6 area;4)expanding existing and constructing new recycling and resource recovery facilities;and 5)expanding
7 existing and constructing new energy conversion facilities.Each of these project components is discussed in
s detail in Section 2.4.1.1 through Section 2.4.1.5, respectively.
9 The locations of the proposed CUP and waste footprint boundaries, in relation to the existing boundaries and
10 the layout of the proposed facilities, are provided on Figure 2.4-1. fable 2.4-1 provides an overview of the
it amount and types of materials proposed to be received. The five project components are discussed in the
12 following sections.
Table 2.41. Comparison of Existing and Proposed Landbll Expansion Project
Project Feature Existing Proposed
Total CUP Area- including easements acres 297 887
Waste Disposal Footprint acres 185 371
Landfill Volume cubic yards) 43.5 million 123.1 million
Waste Capacity tons 29.6 million 98.5 million
Permitted Daily Disposal tons 3,000 6,000'
Permitted Daily Rec clables tons 6,250 3 250
Total Permitted Daily Volume tons Disposal& Rec clables 9,250 9,250
Site Closure Date per existing CUP 2034 Not Applicable
Est.Closure Date 3,000 tpd Disposal Tonnage 2024 Not Applicable
Est. Site Closure Date (&,6,000 tpd Not Applicable 2051
Elevation Limit 1,118 1,270+/-5ft
Hours of Operation 6:OOAM-8:OOpm 6:OOAM—8:OOpm
LFG to Energy Generators 2 5
LFG to LNG Facility 0 1
Numbers of Employees 25 400 incl.GI Rubbish
127,000
Square Footage of Building Improvements 20,000 (w/consolidated offices
&maint.shop)
Permitted Maximum Daily Vehicle Trips Roundtri 822 1,297-
Source: Psomas 2007a
,Notes:
1. From existing SWFP.
2.Capacity derived utilizing 1,600 pounds per cubic yard(0.8 tons per cubic yard)density.
3.Combined disposal of MSW and recyclables would not exceed 9,250 tpd.
4.Includes relocation of GI Waste 1 lauling Facility to SVLRC from off-site.
13 2.4.1 Expansion Plan Components
14 2.4.1.1 Expansion of the CUP Boundary and Waste Disposal Footprint
is The SVI,RC Expansion Project would enlarge the current CUP boundary by approximately 590 acres to a
16 total of 887 acres(Figure 2.4-1).This expansion would include increasing the existing disposal footprint from
17 185 acres to 371 acres for a net increase of 186 acres.The buffer area around the disposal footprint would be
18 expanded from 112 acres to 516 acres, for a net increase of 404 acres (Table 2.4-2). The buffer area
19 surrounding the disposal footprint would primarily consist of open space area, but may also include access
20 roads, material and equipment storage yards, mitigation areas, recycling facilities and equipment, and
21 drainage structures.
22
2-24 Simi Valley Landfill and Recycling Center Expansion Project
Final E/R—December 2010
52
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53
2 Project Description
Table 2.42 Current and Proposed Physical Limits of the SVLRC
Physical limits of the Landfill Existing Proposed Net Increase
Waste Disposal Footprint acres 185 371 186
Buffer Area acres 112 516 404
Total CUP Area acres 297 887 590
1 Under the proposed project the permitted fill elevation would increase from 1,118 feet above msl to
2 approximately 1,270 feet above msl, for a net increase of 152 feet.
3 The expanded area of the landfill would be completed in four phases as shown in Figure 2.4-2.Phase I would
4 include additional fill on the existing landfill area. Phase I would be filled towards the north end of the site
s and finished at the south/southeast end. Phases I I through IV would include filling the remaining area within
6 the expanded waste disposal footprint. Phase II would consist of four cells while Phases III and IV would
7 each consist of three cells.
8 The proposed increase in elevation would be applied gradually as each phase of the landfill is developed.The
9 project would leave the existing natural ridgelines intact from most viewpoints and blend the proposed
10 elevation of the landfill with the adjacent hilltops and ridges,which vary from approximately 1,000 to1,350
11 feet above msl.
12 2.4.1.2 Extension of the Operational Limits and Site Life
13 2.4.1.2.1 Increased Waste Disposal Capacity
14 The proposed project would result in an increased waste disposal capacity for the SVLRC.A summary of the
15 currently permitted capacity,the proposed increased capacity,and the proposed final total capacity that would
16 result from the proposed project is presented in Table 2.4-3. As shown in the table, the proposed fill plan
17 would increase the capacity of SVLRC from its currently permitted 43.5 million cubic yards(cy)of air space
18 and 34.8 million tons of waste, to 123.1 million cy of airspace (an increase of 79.6 million cy) and 98.5
19 million tons of waste(an increase of 63.7 million tons).
20 The proposed project would result in a change in the allocation of material accepted at SVLRC. Currently,
21 SVLRC is permitted to accept a combined limit of 9,250 tpd which includes a maximum of 3,000 tpd of
22 disposal material and 6,250 tpd of recyclable material. The proposed change would allow for an increase in
23 the facility's receipts of waste for disposal,thereby increasing the number of deliveries that would occur per
24 day. Assuming the additional disposal tonnage is delivered exclusively by transfer trucks averaging 20 tons
25 apiece, there would be an increase of 150 deliveries per day if the full 6,000 tpd of disposal tonnage is
26 received.
Table. 2.43. SVLRC Waste Disposal Capacity Summary
Scenario Total Airspace Estimated Waste CTacity
million cubic yards) million tons
Existing Condition
Current Used to Date 23. 18.4
Remaining Under Current Permit 20.5 16.4
Currently Permitted Totals 43. 34.8
Proposed Project
Increase Due to Propose Project 79.6 63.7
Proposed Permitted Totals 123.1 98.5
Sources:Psomas 2007a;Derived from Final Cover Grading Plan,Figure 3.1 of Appendix B(WMC 2007b)and RWQCB Quarterly
Report(WMC 2008)
Notes:
I. Conversion of cubic yards of air space to tons of waste capacity is based on the assumption that waste has a density of 1,600
pounds per cubic yard(0.8 tons per cubic yard)at placement on the active working face.
2. For purposes of this table,the current(used to date)airspace is as of December 31,2007.
3. Remaining airspace under current SW FP is as of December 31,2007 as reported by WMC in the Waste Disposal Report for
I"Quarter 2008.
4. Currently permitted total airspace is based on the on the airspace permitted by the existing SWFP.
2-26 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
54
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55
2 Project Description
1 The SVLRC has not generally received as much MSW and recyclable material as it is permitted to receive.
2 SVLRC currently received an average of 2,521 tpd of disposable material and 1,070 tpd of recyclable material
3 (Table 2.3-4). These numbers are considered the baseline conditions for the purpose of estimating changes
4 that would occur with implementation of the project.
s A summary of the currently permitted and baseline daily waste disposal and recyclables limits and the
6 proposed changes to the permitted limits that would result from the proposed project is presented in Table
2.4-4.
Table. 2.4-4. Summary of Current and Proposed Permit Limits for Materials
Received at SVLRC
Currently Permitted Baseline Conditions Proposed Permitted
Tons per Da Tons Per Da Tons per Da
Disposal 3,000 2,521 6,000
Rec clables 6,250 1,070 3,250
C&D - 213 500
Greenwaste - 233 500
Clean Dirt 73 -
Auto Shredder Waste 551 -
SVECC - - 0.1
MRF/RTF - - 500
Total Volume 9,250 3,444 9,250
(Disposal& Rec clables
Source: Derived from WMC 2008a
Notes:
1. Combined receipt of disposal and recyclable materials would not exceed 9,250 tpd.
8 Table 2.4-5 provides an overview of the estimated baseline, currently permitted, and proposed site closure
9 dates(end year)for the SVLRC.Under the terms of the existing CUP-3142-7,SVLRC is permitted to operate
10 until 2034 or until the facility's waste capacity of 43.5 million cubic yards of total airspace, as permitted
11 underthe facility's SWFP,has been reached,whicheveroccurs first.Of that permitted airspace,20.5 million
12 cubic yards(16.4 million tons)was available when the application for modification of the existing CUP-3142
13 was submitted in 2007(Waste Management of California(WMC)2007a).
14 Current average daily receipts(baseline), based on the first quarter of 2008,are 2,521 tons per day. At that
15 rate under the existing permit, the facility would reach its currently permitted capacity in 2027. If receipts
16 were consistently at the fully permitted 3,000 tons per day under the existing permit,the facility would reach
17 its permitted capacity in 2024,consistent with the estimate provided in the CUP modification application.The
18 proposed project is now expected to commence in 2011.From 2007 to 2011,receipts have been limited to no
19 more than 3,000 tons per day.After 2011,permitted receipts would rise to 6,000 tons per day,as indicated for
20 the proposed project in Table 2.4-5.Under that assumption,the facility would reach its permitted capacity in
21 2053.This is two years later than stated in the application which can be attributed to the difference between
22 the originally estimated start date(2009)and the current estimate(2011).Note that it is very unlikely that the
23 facility will begin to receive 6,000 tons per day of waste immediately upon issuance of the CUP modification,
24 especially since it does not typically receive the full permitted 3,000 tons per day currently. Therefore, the
25 actual landfill life under the above assumptions would likely be somewhat longer..
2-28 Simi Valley Landfill and Recycling Center Expansion Project
Final E/R—December 2010
56
2 Project Description
Table 2.4-5 Estimated Operating Life Under Current and Proposed Operations
A vailable mm
Capacity Rate Tons Start Years of End Description Comment Operation
(million (tpd) per Yeah � Year a
tons) Year
Cur ently Permitted Operations
Current Baselines Current average daily 16.4 2,521 0.79 2007 20.9 2027
receipts
Permitted Maximum Permitted
Recei is daily receipts 16.4 3,000 0.94 2007 17.5 2024
Proposed Operations
During 7 Prior to new permit 83.0 3,000 0.94 2007 4.0 2011
Permittin issuance
Start up 2011 After permit issuance 79.3 6,000 1 1.87 2011 42.3 2053
Notes:
1. At 312 days per year
2. Year in which receipts commence at the receiving rate—the starting year(2007)is the year proposed in the CUP
modification application for consistency with the application materials
3. Years for which receipts would occur at the receiving rate
4. Last year of available capacity at receiving rate and available capacity
5. Assumes receipts continue at current average daily rate(2,521 tpd)
6. Assumes receipts at the fully permitted daily rate(3,000 tpd)
7. Years during which receipts would be limited by the current permit to 3,000 tpd
8. Available capacity after four years of receipts at 3,000 tons per day
9. Note that the original CUP modification application computed the end year as 2051.However,that was based on the
assumption that the full 6,000 tons per day would be received from 2009,which did not occur.
1 2.4.1.3 Support/Ancillary Facilities Area
2 The SVLRC Expansion Project includes the construction and use of several ancillary and support facilities
3 including: a MRF/RTF; a public household hazardous waste collection facility (i.e., the Simi Valley
4 Environmental Collection Center [SVECC]); a waste hauling yard; office facilities; a heavy equipment and
5 vehicle maintenance facility;and new scales and a scalehouse.These facilities would be located on approximately
6 30 acres(designated as the support/ancillary facilities area)within the existing CUP boundary(Figure 2.4-1 and
7 Figure 2.4-3).The buildings associated with these facilities would be constructed to meet at a minimum of the
8 Silver Level under the Leadership in Energy and Environmental Design (LEEDO) Green Building Rating
9 System,developed by the U.S.Green Building Council.Since the proposed project does not include future post-
10 closure uses of the site, it is assumed that, with the exception of support facilities for closure and post-closure
11 maintenance,these facilities would be removed upon cessation of the landfill and/or transfer operations.These
12 facilities would be constructed on an area of the site that is currently permitted to receive waste.
13 2.4.1.3.1 Material Recovery Facility(MRF)/Recyclables Transfer Facility(RTF)
14 The facilities area would include a MRF/RTF to enhance recycling capabilities for the community. The
15 MRF/RTF would be located on approximately two acres and would be comprised of a 50,000 square foot,35
16 foot tall building for recycling activities(Figure 2.4-5 and Table 2.4-6).The facility would accommodate the
17 front-end processing of up to 500 tpd of source separated recyclables and/or the transfer of recyclables to off-
18 site locations for further processing. Build-out of the facility to the maximum capacity of 500 tpd would be
19 completed in phases based on the volume of recyclable materials received.The facility would be a partially
20 enclosed structure with concrete tipping floor for initial receipt of recyclable material. light and heavy
21 equipment including loaders, grapples, and sweepers would be used within the MRF/RTF. Processing of
22 recyclables may include hand and/or mechanized sorting (using conveyor-sort lines, trammels, screens,
23 bailers, etc.) and shipping of processed material for off-site advanced processing/sale. Some pre-sorted
24 recyclables could be immediately reloaded into transfer vehicles without on-site processing,for marketing at
25 off-site facilities.'the MRF/R1'F would be permitted to operate 365 days per year between 6 AM to 8 PM,but
26 would generally operate from 7 AM to 4 PM 312 days per year.
Simi Valley Landfill and Recycling Center Expansion Project 2-29
Final F.IR—December 2010
57
2 Project Description
Table 2.46 Dimensions of MRF/RTF
Site Acreage 2
Square footage of building 50,000
Height/Number of Floors 35 feet/ 1 floor
Purpose Front end processing of up to 500 tpd of source separated recyclables and/or
transfer of rec clables to off-site locations for further processing.
Estimated'I'PD 500
t 2.4.1.3.2 Waste Hauling Yard Relocation
2 The GI Rubbish refuse hauling operation currently located at 195 West Los Angeles Avenue in Simi Valley
3 1.5 miles from the landfill would be relocated to the SVLRC. Operation of the waste hauling yard would
4 involve 250 refuse vehicles as well as support vehicles and equipment. Relocation of the waste hauling yard
5 would entail construction of new facilities to be shared by hauling and landfill operations including a main
6 office facility and employee parking(Section 2.4.1.3.3)and vehicle maintenance facility(Section 2.4.1.3.4).
7 "These facilities would be located on approximately 15 acres within the proposed 30-acre support/ancillary
8 facilities area(Figure 2.4-3 and Table 2.4-7).
Table 2.47. Waste Hauling Yard
Site Acreage 15
Square footage of building Share office building and heavy equipment and vehicle maintenance facility.
Ileight/Number of Floors See description of Office Building(Section 2.4.3.3)and Heavy Equipment and
Vehicle Maintenance Area Section 2.4.3.4 for details.
Purpose Operation of waste hauling yard.
9 2.4.1.3.3 Office Building
10 The SVLRC Expansion Project includes the construction of an approximately 25,000 square foot,32 foot tall,
ti two story,main office building located within the proposed 30-acre facilities area(Figure 2.4-3,Figure 2.4-6,
12 and Table 2.4-8). The main office would accommodate up to approximately 150 staff for the landfill,
13 MRF/RTF,and GI Rubbish.This office building would include staff/management offices,a conference room,
14 a dispatch location, a driver locker/bathroom/shower facility, a customer service area, a break
15 room/lunchroom,and a visitor/environmental education center.The environmental education center would be
16 used for tours and site visits to educate visitors about the landfill, hauling operations, recycling, and
17 renewable energy.
Table 2.48. Dimensions of Office Building
Square footage of building 25,000
Height/number of floors 32 feet/2 floors
Purpose Accommodate up to 150 staff for the SVLRC,the MRF/RTF,and GI Rubbish.
18 2.4.1.3.4 Heavy Equipment and Vehicle Maintenance Facility
19 A heavy equipment and vehicle maintenance facility would be constructed within the proposed 30-acre
20 support/ancillary facilities area(Figure 2.4-3).The heavy equipment and vehicle maintenance building would
21 be approximately 30,000 square feet and 39 feet tall and would consist of enclosed bays, a parts/supplies
22 room, maintenance offices, employee restrooms, and a break room (Figure 2.4-7 and Table 2.4-9). This
23 facility would be used for routine maintenance and repair of the hauling vehicle fleet and heavy equipment
24 associated with operation of the MRF/RTF and the landfill. The heavy equipment and vehicle maintenance
25 facility area would be equipped with a vehicle and equipment wash rack, a paint booth for containers and
26 vehicles, and fueling facilities.
2-30 Simi Valley Landfill and Recycling Center Expansion Project
Final E!R—December 2010
58
.
'\' •/ s'' ill�l•°►�/'tea. "7. �\i�i�:�6�I�'\\Y\��=--_- __:.-- �
���� �!����\���''��� /' =—> ���arm � �T�� '��i�e;�'sn,�•w?�,�-♦,
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INNER
LEGEND
Sewer Manh
Sewer
Recycled Water Pipeline
Packaged Treatment Plant
Effluent Pump Station
��� 1
2 Project Description
Table 2.49. Dimensions of the Heavy Equipment and Vehicle Maintenance Facility
Square footage of building 30,000
Height/number of floors 39/2 floors
Purpose Routine maintenance and repair of the hauling vehicle fleet and heavy equipment
associated with operations of the MRF/RTF and the landfill.
1 2.4.1.3.5 New Entrance Road, Scales, and Scalehouse
2 The existing entrance road would be expanded to accommodate three in-bound queue lanes and one bypass
3 lane within the gates of the SVLRC(Figure 2.4-3)."Three in-bound scales and one out bound scale would be
4 constructed as well as a new scale house facility (Figure 2.4-8).
s 2.4.1.3.6 Simi Valley Environmental Collection Center(SVECC)
6 The SVECC facility would provide a location for residents to drop off their household paints, solvents,
7 antifreeze, flammables, and electronic waste. An approximately 750 square foot building adjacent to the
8 MRF/RTF will house the SVECC and contain 2-4 skid-mounted units specified for storage of materials
9 collected from the public(Figure 2.4-3 and 2.4-5). "The SVECC would be operated by personnel licensed to
10 properly handle the discarded wastes and insure proper transport to off-site permitted facilities for recycling
11 or disposal of all materials. The operating schedule for this facility is to be determined pending cooperative
12 agreements and funding from involved State and local agencies supporting the SVECC.
13 2.4.1.4 Recycling and Resource Recovery Facilities
14 2.4.1.4.1 Construction and Demolition (C&D) Debris Recycling
15 The proposed project would include processing e up to 500 tpd for C&D debris recycling.This area would
16 migrate within the waste disposal footprint depending on operational considerations as each phase of the
17 landfill is developed.Vehicles containing construction and demolition materials as defined by Title 14,CCR,
18 §17381(e)would be routed to the C&D debris sorting operation. Recyclable material would be removed by
19 hand or machine for further processing on-or off-site.Residual material meeting the definition of C&D ADC
20 would be ground for use on the active face.Dust control measures would be implemented to manage fugitive
21 dust. Refuse removed from the C&D loads would be disposed ofwithin the landfill working face. Permitted
22 hours of operation would be 6 AM to 8 PM,daily, but the facility would generally operate from 7 AM to 4 PM
2.3 312 days per year.
24 2.4.1.4.2 Expanded Green Waste Processing Facility
25 The SVLRC Expansion Project would include a 10-acre green waste processing facility(Figure 2.4-3).This
26 facility would receive up to 500 tpd of green material.Most of the processed materials would be removed off-
27 site after chipping.The material that remains on-site would be used for mulch(erosion control)and/or ADC.
28 Dust control would be applied during green waste processing to control fugitive dust. Permitted hours of
29 operation would be 6 AM to 8 PM,daily,but the facility would generally operate from 7 AM to 4 PM.312 days
30 per year.
31 2.4.1.5 Energy Conversion Facilities
32 2.4.1.5.1 Expanded Landfill Gas-to-Energy(LFGTE) Operations
33 The proposed project includes the installation of up to three additional LFGTE generation systems similar to
34 those currently located at the SVLRC (Figure 2.4-1 and Figure 2.4-3). These systems would use excess
35 landfill gas generated by expanded operations that would otherwise be lost through flaring to generate
2-32 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
60
2 Project Description
1 additional electricity. Electricity generated from these additional systems would be used internally to power
2 new and expanded buildings and facilities with the excess sold to the local utility grid and/or to support a
3 LFGTLNG facility at the SVLRC (Section 2.4.1.5.2). The expanded LFGTE systems would be located
4 adjacent to the existing LFGTE operation and flare station in the southwest portion of the landfill CUP
5 boundary (Figure 2.4-3).
6 The electrical generation systems would operate continuously 24 hours a day, seven days a week with the
7 exception of maintenance activities.Annual maintenance,including cleaning burner tips and flame arrestors,
s as well as inspecting the refractory and calibrations,would require the flares to be down for a total of six to
9 eight hours throughout the year. The flares (and engines) would also be taken offline periodically
10 (approximately one to 1.5-percent of the time annually).
11 2.4.1.5.2 Landfill Gas to Liquefied Natural Gas (LFGTLNG) Facility
12 The SVLRC Expansion Project includes the construction and operation of a LFGTLNG facility located just
13 north of the existing LFG flare station(Figure 2.4-3).This facility would treat landfill gas to remove impurities,
14 condense the gas to liquid phase by chilling, separate out the natural gas component, and store the gas in
15 cryogenic tanks for use as a transportation fuel to power heavy-duty landfill vehicles including sanitation trucks.
16 FigureThe LFGTLNG facility would produce up to 18,000 gallons of LNG per day.The process is discussed
17 below.
18 Figure 2.4-4 provides a diagram of how LFG is processed to produce energy as well as the relationship
19 between the LFGTE equipment to the flare and to the proposed LFGTLNG facility.
Flare
Sulfur Removal,
LFG IQrying,Trace CO`Polishing Storagc. nd LNG
Compression Contauument; and Liquefaction Dispersing
and Bul1.,CO3 N, Removal
'Removal
Condensate Condensate
Flare
Figure 2.4-4. LFG Purification Process Flow
20 Landfill gas typically contains 30 to 60 percent methane(by volume),up to 45 percent carbon dioxide as well
21 as nitrogen, oxygen, water vapor, hydrogen sulfides and minor amounts of sulfur and hydrocarbon
22 compounds.Gas compression and cooling processes would be employed to liquefy and separate most of the
2-3 carbon dioxide gas from the methane gas. The proposed system would use a multiple bed pressure swing
24 adsorption (PSA) system to remove hydrogen sulfide and other impurities from the methane after the
25 compression step. Following contaminant removal, the process would consist Of CO2 polishing and removal
26 of nitrogen (Nz) and then liquefaction. For use as fuel, LNG generally contains a minimum of 95 percent
27 methane and with not more than 0.5 percent carbon dioxide. Liquid carbon dioxide separated from the LFG
28 may be further purified to provide a high grade,commercially marketable product(dry ice),which would be
29 exported off-site.No more than approximately six truckloads per day would export these by-products off-site.
Simi Valley Landfill and Recycling Center Expansion Project 2-33
Final E1R—December 2010
61
W-:. `-_a = -ai '. r .- fir e ' i,'a�c ..n K ------_- ' t.S.� ° L`'gj_'t c-y
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Source: Psomas 2008
Figure 2.4-5. Rendering of the Material Recovery Facility/Recyclables Transfer Facility
62
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------,- --, '- - ,-`•___ :,..,::-...7.,'" .-`-,="r`",4`', ' , ' .- '' -... .
.1-- _--Z--z-r-,—-...q. -112'-,---"--'1';--7--i---.4-f---7,:--',`---- 4---- - - ' -,,,- •i-,,-...---;^ --.,,,_, ,
.-, ..,-:,---7-.-7_,-: ----',.';.- 1"--','-,7,---1=,-"-k._-:- :---r4 _.---;.^.- , -‘_!.-_--,2Wz-'- _,----- :.•&,-__,-,.;-r--, -`-`
=v-A,t:_- _Wf,-'----:4.-,,4:,--_._----Z-=,v..- --..1-A,,,;,.--..e,.----:-. •. _.......„,
,-..
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,‘,_;..,--•.4 ---,-----_,-....,;,,,,,-,.-z--4_0--,,,,--- -,,,,,.,-,..,,, , . - _w_,...- --,-- _
Source: Psomas 2007
Figure 2.4-6. Rendering of Proposed Office Building/Recycling and Resource Recovery Facilities
63
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ra1 ' - I
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-rf ^� „�lRy^Ch_._c°. •',_y L..1�tC�"C �3��._:
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Figure 2.4-7. Rendering of Heavy Equipment and Vehicle Maintenance Facility
64
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65
2 Project Description
1 LNG would be produced by cooling and condensing the methane gas to approximately -260 degrees
2 Fahrenheit(°F)by exchanging heat with a cryogenic gas.The cryogenic cooling effect would liquefy more
3 than 80 percent of the compressed methane gas. The uncondensed methane contaminated with oxygen and
4 nitrogen gases would be removed. The final LNG product would be stored in four 15,000 gallon cryogenic
5 tanks.
6 An LNG fueling station would be installed at SVLRC to fuel the existing fleet of disposal trucks using LNG.
7 The remainder of the LNG produced would be exported by tanker truck(typically 10,000 gallon capacity
8 trucks)for use off-site. It is anticipated that no more than two truckloads would be exported daily.
9 The LNG production plant is designed to operate 24 hours per day,seven days per week,52 weeks per year.
10 The LFGTLNG facility would be equipped with advanced data monitoring,tracking,and recording hardware
11 and software.
12 2.4.2 Project Design Features
13 Design parameters described in this section are based on existing designs for the currently permitted operation
14 and conceptual plaits for the proposed expansion. Final plans for all aspects of the expansion would be
15 prepared in accordance with applicable permit processes.
16 2.4.2.1 Cover Slopes
17 Fill conditions at SVLRC are dynamic. However, the excavation of native soil would not exceed a 1.5:1
18 (horizontal to vertical)gradient.The base of cell excavations at the perimeter of the landfill footprint would
19 be sloped to ensure proper drainage of surface waters.
20 State Regulations require that once each phase of a landfill reaches final grade it must receive final cover.As
21 required by 27 CCR §21090, final cover slopes shall not be steeper than a horizontal to vertical ratio of
22 1.75:1,and shall have a minimum of one 15-foot-wide bench for every 50 feet of vertical height to minimize
23 erosion potential.As currently proposed,the steepest parts of the final cover slope would be 3:1 with 15-foot-
24 wide benches for every 50 feet of vertical height.
25 2.4.2.2 Stockpiling of Soil for Cover Material
26 The landfill phases and construction sequence have been designed to balance soil excavation and cover soil
27 use to reduce double handling of soil material. Surplus excavated soils would be stockpiled on or near the
28 active landfill face for later use as cover.In addition,a varying amount of cover material would be surplus dirt
29 delivered to the landfill by contractors from local construction projects.With these available sources of soil,
30 no need is anticipated for additional soil to be imported from outside the site.
31 To comply with the requirements for a prescriptive liner, soils suitable for compacting to a permeabilityf
32 less than 1 X 10-7 cm/sec would need to be excavated and stockpiled separately. port by Geosyntec
33 [Geosyntec 2010]to assess the clay resources on site concluded that"adequate soil resources exist within the
34 expansion area to use as low permeability (clay) liner material..." provided that it is selectively graded,
35 screened,and/or processed or admixed with bentonite or another suitable material.The report concludes that
36 about 2.5 percent of the planned excavation volume would need to be suitable material to provide a sufficient
37 quanti1y for a prescriptive liner. A minor number of truckloads may be required to deliver bentonite or
38 another material to augment native soils to meet the permeability standards.The exact number of trips is not
39 known,but expected to average less than one trip per day.
2-38 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
66
2 Project Description
1 FIGURE REPLACED
2 (see renumbered Figure 2.4-4)
3 2.4.2.3 Daily and Intermediate Cover
4 Daily and intermediate cover would remain consistent with existing operations at SVLRC, as discussed in
5 Section 2.3.2. At the close of each day,the working face would receive a daily cover of a minimum of six
6 inches of compacted soil or an approved ADC. When no additional waste is scheduled to be placed on an
7 advancing lift within 180 days or some other period prescribed by the LARWQCB,the top and side slopes of
8 the lift would receive an intermediate cover of 12 inches of compacted soil.
9 2.4.2.4 Drainage and Erosion Control
10 Drainage facilities and erosion control would be implemented consistent with existing operations.No areas
11 outside the proposed CUP boundary would drain onto the site. Run-on from CUP areas upgradient of the
12 landfilled wastes would be diverted from the landfill via the existing perimeter concrete-lined trapezoidal
13 ditch that would be extended to include the proposed expansion area.
14 Surface runoff from completed landfill surfaces would be controlled through the use of stormwater channels
15 and detention/sedimentation basins. Six stormwater detention/sedimentation basins(Figure 2.4-1)would be
16 constructed throughout the SVLRC to handle increased runoff. As required by 27 CCR §20365, the
17 stormwater detention/sedimentation basins would be designed to carry runoff volume generated by a 100-
18 year, 24-hour event. A drainage study would be required for the detailed design of the
19 detention/sedimentation basins. The detention/sedimentation basins would be required to meet the standards
20 of the Watershed Protection District,which is that there must be no increase in peak runoff rate in any storm
21 frequency.The basins must be designed in accordance with the Ventura County Watershed Protection District
22 Hydrology Manual.
23 Stormwater would be carried through a combination of ditches,sediment traps,and slope benches along the face
24 of the landfill to various collection pipes,which in turn would discharge into the perimeter collection system.As
25 discussed in Section 2.3.3, during landfill operations,temporary berms and V ditches would be placed near
26 active refuse fill areas to control surface water runoff.The temporary berms and V ditches would direct surface
27 water around exposed refuse and prevent it from ponding on the refuse fill. Surface water runoff would be
28 carried over temporary refuse fill slopes via oversized drains comprised of metal flumes,corrugated metal pipe,
29 ABS plastic pipe, or plastic-lined trenches. As the phased fill sequence plan progresses, the landfill surface
30 would be contoured to drain runoff to perimeter ditches and minimize ponding on the landfill.The final surface
31 of the landfill would be blanketed with a soil cover system to further minimize stormwater infiltration.
32 Permanent drainage practices would include,but are not limited to: diversion berms;grass/concrete waterways;
33 concrete perimeter channel; lined waterways and outlets; rock outlet protection; subsurface drains/culverts;
34 vegetation management practices;paved parking area;and landscaping.
35 Vegetation management practices would be used to minimize erosion when possible.As discussed in Section
36 2.3.2,intermediate cover would be placed on temporary slopes that would not be disturbed for extended periods.
37 2.4.2.5 Leachate Control Provisions
38 2.4.2.5.1 Landfill Liner
39 New landfill areas must be equipped with liners. Waste disposal areas within the expansion would be
40 designed and constructed in accordance with 27 CCR§20330.
41 The proposed floor(bottom)and side slope liners for the proposed new excavation areas would be as follows:
Simi Valley Landfill and Recycling Center Expansion Project 2-39
Final EIR—December 2010
67
2 Project Description
1 0 FigureFloor Liner(prescriptive).The prescriptive floor liner system consists of(from the bottom up)
2 a 24-inch compacted clay liner,a 60-mil HDPE liner,a geotextile,a 12-inch leachate collection and
3 removal system(LCRS)drainage la eY r,a geotextile,and a 24-inch protective soil layer(Figure_ 2.3-
4 2).
5 • Side Slope Liner. The proposed side slope liner system, an alternative design approved by the
6 LARWQCB,consists of(from the bottom up)a GCL,an 80-mil HDPE liner,a geotextile,and a 24-
7 inch protective soil layer(Figure 2.3-2).This alternative design has demonstrated equivalency under
8 27 CCR§20080(c)and has been approved by the LARWQCB for use within the existing portions of
9 the SVLRC.
10 2.4.2.5.2 Leachate Collection and Removal
11 New landfill areas must be equipped with a LCRS installed over a base liner. The LCRS design would be
12 consistent with the alternative LCRS design already approved for use at SVLRC. The LCRS consists of the
13 following elements(from bottom to top):
14 • Geotextile: A geotextile(filter fabric)placed over the liner;
15 0 Drainage Layer:A 12-inch drainage layer of permeable material having a hydraulic conductivity of 1
16 x 10-2 cm/sec, or greater(usually sorted coarse gravel);
17 • Geotextile: A geotextile fabric placed over the drainage layer,designed to prevent overlying material
18 from entering the drainage layer voids; and
19 • Operations Layer:A minimum 24-inch layer of soil to separate and protect the drainage layer from
20 displacement by the waste fill; waste would be placed over the protective soil.
21 A system of perforated PVC or HDPE pipe would be installed within the drainage layer to facilitate the
22 collection and discharge to sumps of any leachate that drains from the landfill.The sumps would be underlain
23 by a liner as described in Section 2.4.2.5.1. Positioned on the perimeter of the landfill,each sump would be
24 equipped with a riser pipe extending from the sump to the ground surface.The riser pipes would be installed
25 in shallow,lined trenches excavated into the perimeter at a 2:1 slope or placed directly on the lined 2:1 slope.
26 Final sump design parameters would be approved by the LARWQCB.
27 Leachate would be managed in accordance with current methodologies employed at SVLRC. Leachate
28 collected from the sumps would be re-circulated into the landfill at designated LIPs. Subsurface liquids
29 collected from the toe barrier system would be treated using granular activated carbon adsorbing filters prior
30 to use for dust suppression purposes. Two 5,000-gallon leachate holding tanks, in addition to the existing
31 tanks,would be constructed over the life of the project(one associated with Phase 11 and the other with Phase
32 111). The tanks would be located in the southern and western portions of the expansion area as shown on
33 Figure 2.4-3.The existing WDR would be revised or a new WDR obtained to allow for the use of the treated
34 leachate for dust suppression within the expansion areas.Prior to use,the liquid would meet all conditions of
35 Provision F of the WDR, which references Maximum Contaminant Levels(22 CCR §64435 and §64473).
36 2.4.2.6 Utilities
37 2.4.2.6.1 Water Supply
38 The proposed project is estimated to require an annual water supply of 174 acre feet(AF)(Psomas 2007a)
39 that would be provided by Ventura County Waterworks District No.8.On-site and off-site water distribution
40 facilities would be upgraded to provide required fire flow at a maximum velocity of eight cubic feet per
41 second. The proposed on-site water facilities are illustrated on Figure 2.4-9 and off-site facilities on Figure
42 2.4-10.The off-site facilities would connect to an existing 16-inch pipeline near the SVLRC.Approximately
43 3,000 linear feet of 12-inch pipeline would be installed along View Line Drive. The proposed pipeline would
2-40 Simi Valley Landfill and Recycling Center Expansion Project
Final ELR—December 2010
68
2 Project Description
1 cross Brea Canyon,a Ventura County Watershed Protection District and potential California Department of
2 Fish and Game(CDFG)and United States Army Corps of Engineers(USACE)jurisdictional channel,and a
3 permit may be required from the these agencies as well as the LARWQCB for the construction of the
4 improvements.
5 2.4.2.6.2 Domestic Wastewater
6 As part of the proposed SVLRC Expansion Project the existing septic system would be removed and an on-
7 site, self-contained packaged wastewater treatment plant is proposed within the ancillary/support facilities
8 area (Figure 2.4-3). Processing of wastewater at the treatment plant would include: physical separation
9 (primary treatment); biological(secondary treatment);and coagulation, filtration,and disinfection(tertiary
10 treatment). The facility would be permitted by the LARWQCB and would meet the operation and
11 maintenance guidelines required by the California Department of Public Health.
12 Package-type wastewater treatment equipment would be contained in a common rectangle metal tank.Other
13 mechanical and electrical equipment would be located outside the equipment vessel. The plant would be
14 housed either in a building or installed underground. It would be located near the stormwater
15 detention/sedimentation basin or in the employee/visitor parking lot to allow gravity flow from the proposed
16 building facilities to the treatment plant(Figure 2.4-11). Such a wastewater treatment plant is designed to be
17 fully automated, but would be maintained by qualified personnel who would perform required periodic
18 inspection, provide preventative maintenance, and maintain operating records of the plant.
19 The treated effluent from the wastewater treatment plant would be pumped to the leachate storage tanks where
20 it would commingle with treated leachate. The treated effluent would be used for irrigation and/or dust
21 control. There would be no leach field or off-site discharge of domestic waste.
22 2.4.2.6.3 Electricity and Natural Gas
23 SVLRC has no natural gas line connections.Under the proposed project SVLRC would receive natural gas
24 from the LFGTLNG facility.Electricity would continue to be provided either from SCE and/or by the existing
25 and expanded LFGTE facilities as described in Section 2.3.6.3.
26 2.4.3 Construction
27 Construction of the SVLRC Expansion Project would involve two types of construction and occur in four
28 phases. The initial construction activities would include the construction of facilities in the 30-acre
29 support/ancillary facilities area(including the MRF/RTF,SVECC,waste hauling yard,office facilities,heavy
30 equipment and vehicle maintenance facility,and new scales and scalehouse).Construction would also include
31 expansion of the existing LFGTE facility and construction of a LFGTLNG facility. The LFGTE units and
32 LFGTLNG plant would be constructed on an as needed basis at a later time. The C&D debris recycling
33 activities and green waste processing operations would occur on the landfill footprint in an area not receiving
34 waste and would migrate from place to place within the landfill as portions are filled to capacity.Construction
35 of additional waste depository space within the landfill proper would also occur within Phase I. Subsequent
36 construction activities would involve the sequential excavation of Phases II through IV of the waste footprint
37 and would include clearing, compacting,and preparing the phase(s)for landfilling.
38 2.4.3.1 Construction Schedule
39 The approximately 30-acre support/ancillary facilities area would be completed within approximately 18
40 months of project approval(Table 2.4-10).
Simi Valley Landfill and Recycling Center Expansion Project 2-41
Final EIR—December 2010
69
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LEGEND
———— Water f5ex Q
Fire Hydrant _._l WCWTA t s 8 9°� <
Figure 2.4-9. Proposed On-Site Water System
0
Simi
VALLEY
LANDFILL
GQ
CONNECTTO
ON-SITE WATER
1190 ZONE TANK
1.5 MG
10"PVC
ALTER 2
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Ap H-WATER-----
7
IN MADERA RD
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61,
ALTERNATIVE 1
CD
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CONNECT FT-
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17s, IN MADERA RD
20"ACp
BO
16, C
4 LL Way
Ci
LEGEND
Proposed Water N Scale
Existing Water l 0 Feet 300
• Water Tank Source: Psomas 2008
Figure 2.4-10. Proposed Off-Site Water System
ZENON MEMBRANE TECHNOLOGY
Z-MODTM-S 5,000 to 100,000 gpd*
• Fully integrated system with biological
processes, membranes, and ancillary _
equipment in a single tank E l
• A complete"plug-and-play"design ` HI I l ri-rE 7 .I
• Maximum capacit for a buried tank I -I- I��'
is 40,000 gpd I�V I I I I b r� T- 1
• Can be buried or installed above ground -s-, _ —j-----
• Compact design minimized construction
costs and plant footprint
• Highly automated PLC-controlled operation and cleaning
POLLUTION CONTROL SYSTEMS, INC.
Wastewater Flow Treatment Process Flow Chart
Backwash _
I 1111—�
Equalization Tank Aeration Tank I Clarifier )-Tertiary Filter Disinfection --).
I
Return Activated.Sludge
! Decant Discharge V
Sludge 4 Wasse Ac vested Sludge
Sludge to Disposal Holding Tank
CONROANE II $ARSCJ SERI6CSATNG P
\ SUJDGEDWVERsioN i
1 -- / s i 10WE.RMOTDR
SWDGE -%- _ �i V}ti{S- UNf 5`-
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--m'XING-- - -I '- BAFFLES�- - f - - k - 'SCUM RETTNIt* - 3 _,
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`� "'r"ZiME -- _ -' CONTACT ZONE
DROPPWE _ _
1191fRNALSTII --_.. / -``'-----
Source: Psomas 2008
Figure 2.4-11. On-Site Packaged Wastewater Treatment Plant
72
2 Project Description
1 Phase I of the waste footprint would include additional filling of the existing landfill area. Construction of'
2 Phase II would begin as Phase I approaches its design capacity, which has been estimated to take
3 approximately seven to eight years.The construction of each subsequent phase would begin as the previous
4 phase reaches capacity(estimated to take between 12 to 14 years).
Table 2.410 Construction Schedule
Construction Activity Estimated Duration months Estimated Timeline
Support/Ancillary Support/Ancillary Facilities Area 18 January 2012 -June 2013
Earthmoving 6 January 2012—June 2012
Structural Excavation/Backfill 2 Jul —August 2012
Sitework 5 June—October 2012
Utilities 3 June—September 2012
Concrete 4 September--December 2012
Buildings 4 January—April 2013
Finishes 4 Aril—June 2013
Mechanical, Electrical,and Plant 4 March--June 2013
Phase I Waste Disposal Area 2 J 2012
Phase II Waste Disposal Area 8 --2016-2030
Phase III Waste Disposal Area 6' —2028-2044
Phase IV Waste Dis osal Area 6 --2040-2051
Notes:
1.Assumes that one cell would be constructed during Phase 1.
2.Assumes that four cells would be constructed during Phase 11;each cell requiring 60 days for construction.
3.Assumes that three cells would be constructed during Phase[[I;each cell requiring 60 days for construction.
4.Assumes that three cells would be constructed during Phase IV;each cell requiring 60 days for construction.
5.Assumes that Phase I would reach capacity in seven to eight years
6.Assumes that Phases 11 through IV would reach capacity in approximately 12 to 14 years.
s 2.4.3.2 Construction Workforce
6 During peak construction,the construction workforce would include approximately 45 personnel for the 30-
7 acre support/ancillary facilities area. The waste disposal areas would be constructed in four consecutive
8 phases with each phase divided into cells. Phase I would be comprised of one cell and would require 29
9 personnel including 18 equipment operators,nine construction personnel,and two managers.Phase II would
10 be comprised of four cells and would require 116 construction personnel. Phases III and IV would each
11 contain three cells and require 87 personnel.
12 2.4.3.3 Construction Equipment
13 Table 2.4-11 identifies the equipment anticipated for construction activities.Equipment would be delivered to
14 and removed from the site for each construction period.A majority of the heavy construction equipment and
15 material would be delivered to the construction site from local contractors'yards on lowboy trucks or trailers
16 using modern trucks that would be required by WM to be Tier 3 compliant(i.e.to use ultra-low-sulfur fuel).
17 Most construction equipment would require either gasoline or diesel fuel.
Simi Valley Landfill and Recycling Center Expansion Project 2-45
Final EIR—December 2010
73
2 Project Description
Table 2.4-11. Construction Equipment and Estimated Daily Hours of Use
Equipment T e Number Engine Type Horsepower Ossociated Construction Activ'
Sup ort/Ancillary Facilities Area
631 Scrapers 6 Diesel 500 Earthmovin
D-10 Dozer 6 Diesel 700 Earthmovin
D-6 dozer I Diesel 140 Earthmovin
Motor Graders 2 Diesel 180 Earthmovin
Compactors 2 Diesel 300 Earthmovin
Water Trucks l Diesel 200 Earthmovin
Water Wagon 2 Diesel 330 Earthmoving;structural excavation/backfill;sitework;
site utilities,concrete;metal buildings; finishes
Excavator 2 Diesel 168 1 Structural excavation/backfill;sitework;site utilities
Sup ort/Ancillary Facilities Area
End-dump Trucks 3 Diesel 370 Structural excavation/backfill; sitework;site utilities
10 cubic ards
Compactors 2 Diesel 100 Structural excavation/backfill;sitework;site utilities
Concrete Pump I Diesel 350 concrete
Concrete Paving 1 Diesel 100 Finishes; MEP
Machine
Asphalt paving 1 Diesel 75 Concrete
Machine
Concrete'Truck 9 Diesel 350 Finishes; MEP
Delivety
Asphalt Truck 5 Diesel 350 Concrete
Delivery
Cranes 2 Diesel 335 Metal buildings; finishes
Personnel Lifts 4 Diesel 30 Metal buildings; finishes
Boom Truck 2 Diesel 215 Site work;site utilities;metal buildings; finishes MEP
Flat Bed Trucks 5 Diesel 200 Earthmoving;structural excavation/backfill; site work;
site utilities;concrete;metal buildings
Waste Disposal Area Cell
Scraper Fleet 9 Diesel 500 Cell excavation
Dozers 4 Diesel 700 Cell excavation
Moto graders 2 Diesel 180 Cell excavation
Water trucks 2 Diesel 200 Cell excavation
Compactor 1 Diesel 300 Cell excavation
Source: WMC 2008
Note:
1. No cells would be constructed as part of Phase 1. Phase lI would require construction of four cells.Phase III and Phase
IV would each require three cells.Each cell would require approximately 60 days for construction.
1 2.4.3.4 Construction Traffic
2 A majority of the heavy construction equipment and material would be delivered to SVI,RC from local
3 contractors' yards on lowboy trucks or trailers. Mobile cranes and dump trucks would be driven in as well.
4 Wastes generated from construction would either be hauled within the landfill for disposal or recycling or off-
s site to local recycling centers. Table 2.4-12 provides an overview of the construction-related vehicle
6 roundtrips anticipated as part of the proposed project.
Table 2.4-12. Construction-Related Total Vehicle Round Trips
Construction of Suppord Landfill Landfill Landfill Landfill Total
Ancillary Facilities Phase 1 Phase 11 Phase 111 Phase 1 V
Equipment Delive 57 0 72 54 54 237
Material Delivery 400 0 300 300 300 1,300
Construction Related 100 0 100 100 100 400
Debris
Source: WMC 2008
Note:
I.These trips are assumed to occur within the landfill.
2-46 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
74
2 Project Description
1 2.4.4 Operation Description
2 Landfill operations include waste receipt and or disposal, waste hauling within the landfill footprint,
3 application of daily and intermediate cover, and site grading and maintenance. As the landfill expands,
4 additional excavation would begin to occur in new phases,and other heavy equipment operations would occur
s on the surface of areas surrounding the refuse columns.
6 2.4.4.1 Waste Quantities and Truck Traffic
7 Currently, the SVLRC is permitted for a maximum limit of 822 vehicles per day. Future truck traffic
8 associated with landfill receipts was estimated based on actual trucks recorded at the landfill in the first
9 quarter of 2008(January through March).Actual total truck trips for the quarter were allocated to an average
10 day by observing that Saturdays typically received 60 percent of the average volume on weekdays.The one
11 Sunday a month the facility is open to the public was ignored as being unrepresentative of actual truck trip
12 generation since virtually all Sunday trips are much smaller household loads and do not occur during weekday
13 traffic periods.
14 Based on the average tons per day received during the first quarter of 2008 and the numbers of trucks
15 associated with each type of waste (municipal solid waste, construction and demolition debris, clean dirt,
16 greenwaste, and auto shredder waste representing alternative daily cover) and total tonnage by type, an
17 average truck load was calculated for each waste type for wastes from within Ventura County and wastes
18 from outside the County. The average tons per load differ for waste originating in Ventura County versus
19 waste from outside the County with the average load associated with in-county waste being smaller than those
20 from out-of-county.This can readily be explained by the fact that in-county hauls involve more smaller waste
21 packer trucks delivering waste directly to the landfill whereas out-of-county hauls involve a larger fraction of
22 transfer trucks which have roughly twice or more the capacity of the smaller packer trucks.
23 Using California Department of Finance(CDF)population projections for Ventura County, actual average
24 daily receipts for the first quarter 2008 were projected forward to future years. Based on CDF data, Ventura
25 County waste receipts in all waste types were inflated at a growth rate of 1.7 percent per year to the year 2020
26 and by 1.05 percent per year thereafter based on a projected flattening of the population growth curve in the
27 CDF projections. In the first quarter of 2008,average Ventura County waste represented 1,276 tons per day
28 out of average total receipts of 3,681 tons per day. For future years, the projected Ventura County waste
29 tonnage was deducted from the proposed project's assumed 9,250 tpd permitted level(6,000 tpd of MS W and
30 3,250 tpd of recyclable or beneficially used materials)to determine the tonnages received from out-of-county
31 sources. Assuming that the maximum tons per day would be received in the future, the balance of the
32 available receipts that would not be used by the projected Ventura County tonnages was allocated to all other
33 sources. Total truck trips were then calculated based on the average tonnage per truck, by waste type and
34 source location(i.e. in-county vs. out-of-county), received in the first quarter of 2008.
35 Average daily truck trips for the first quarter of 2008 were 501 vehicles per day.Based on the above projection
36 methodology, future daily trips related solely to landfill operations (that is, not to commuter trips) were
37 calculated to be 1,128 trips per day in 2020 and 1,173 trips per day in 2050. This is larger than the 892
38 vehicles per day projected in Waste Management's application for modification of the existing CUP-3142 for
39 the proposed project and,therefore,considerably more conservative.The reason for the difference appears to
40 be that the projections in the application assumed a higher tonnage per truck for future truck trips than the
41 above methodology used. However, for the purposes of estimating potential future impacts, the more
42 conservative methodology described above which results in a larger number of truck trips is considered
43 appropriate for a reasonable worst case analysis and is therefore the basis for the following analyses.
Simi Valley Landfill and Recycling Center Expansion Project 2-47
Final F.IR—December 2010
75
2 Project Description
Table 2.4-13. Simi Valley Landfill and Recycling Center Permitted,
Baseline and Proposed Vehicle Trips
Land Use _ TPD or Employees Da
imum
Max il Round Trips
Vehicle Trips Based on Currently Permitted Daily Tonnage
Waste Material 3,000 425
Recyclable Material 6,250 375
Employees 22 22
Total: 822'
Baseline Vehicle Trips'
Waste Material 2,584 311
Recyclable Material 1,097 190
Employees 22 22
Total: 523
Estimated Peak Daily Vehicle Trips Based on the Proposed Project Description for 2020
Waste Material 6,000 672
Recyclable Material 3,250 456
Employees 400 405
Total: 1,533
Net Vehicle Trip Increase from Currently Permitted Vehicle Round Trips: +711
Net Vehicle Trip Increase from Baseline Vehicle Round Trips: +1,010
Source: Derived from WMC 2008a
Notes:
1.Current permit limit for vehicles under CUP-3142-7.
2.Baseline based on data from the 151 Quarter 2008,scaled to annual operations,and divided by actual days of operation.
1 2.4.4.2 Hours of Operation
2 The expanded SVLRC would continue to comply with the currently permitted hours of operation:6 AM and 8
3 I'M,seven days per week,365 days peryear.However,SVLRC is typically closed on New Year's Day,Easter
4 Sunday,Memorial Day,July 4,Labor Day,Thanksgiving,and Christmas.The hauling vehicle fleet would be
5 permitted to operate between the hours of 4 AM and 8 f'M, seven days per week,365 days per year with the
6 exception of the holidays listed above. However,current operations occur six days a week plus one Sunday
7 per month effectively totaling 312 days per year. Other activities such as LFG and leachate
8 collection/disposal,equipment and vehicle maintenance,MRF/RTF operations,and compliance tasks would
9 normally occur over a 24 hour period except for periodic maintenance and other downtime.
10 2.4.4.3 Landfill Personnel
11 The proposed project would result in an overall increase of 150 employees.Currently,SVLRC and GI Rubbish
12 employ 250 personnel of which 25 are located at SVLRC and 225(135 drivers and 90 customer service,shop,
13 support,and management personnel)are located ofd site at the existing GI Rubbish hauling facility. Under the
14 proposed project the existing hauling facility would be relocated to the SVLRC and the hauling facility
15 personnel would increase to 350 (225 drivers and 125 customer service/billing staff, shop, support, and
16 management personnel)over the life of the project. Additionally, the landfill personnel would increase to 50
17 personnel.Table 2.4-1�4 provides an overview of the changes in personnel under the proposed project.
Table 2.4-14. Current and Proposed Landfill Personnel
Current Employees Proposed Employees Total Net Increase of Enwloyees
Landfill Personnel 25 50 +25
Hauling Facility- Drivers 135 225 +90
Hauling Facility-Office Personnel 90 125 _ +35
Total 250 400 150
Notes:
1.The hauling facility is currently located off-site of the SVLRC."Thus,associated personnel are not currently located at the SVLRC.
2. The hauling facility is proposed to be relocated to the SVLRC.Thus,associated rxmnel would he relocated to the SVLRC.
2-48 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR—December 2010
76
2 Project Description
1 2.4.4.4 Waste Delivery and Processing
2 Municipal solid waste and recyclables from the local community would be delivered to SVI.RC in packer
3 trucks for disposal in the landfill and for processing in the MRF/RTF. Each truck would be weighed and
4 information about its origin documented at the weigh station.The G1 Rubbish fleet of packer trucks would be
s sent out multiple times per day,but would remain at the SVLRC in the proposed waste hauling yard at the end
6 of each day. GI Rubbish packer trucks would also be maintained at the proposed Heavy Equipment and
7 Vehicle Maintenance Facility within the SVLRC.
s SVLRC would continue to receive transfer trucks, trucks carrying recyclables, and trucks carrying roll-off
9 bins. Each truck would be weighed and information about its origin documented at the weigh station. The
10 trucks would dispose of their contents at the tipping areas based on the type of commodity they are carrying.
11 To the maximum extent possible, trucks bringing material in would be reloaded and sent outbound with
12 material from the MRF/RTF and resource recovery facility areas.The trucks would be weighed upon leaving
13 the facility.
14 2.4.5 Site Closure
15 The SVLRC expansion area would be closed once the landfill reaches capacity or the facility's permitted
16 closure date is reached, whichever occurs first. An updated closure plan would be prepared to take into
17 account the revised fill plan,the increased waste disposal capacity,and the extended site life.The closure plan
18 would be submitted to the EHD,the LEA for solid waste disposal facilities in Ventura County,along with the
19 application for revision of the SWFP.
20 2.4.5.1 Final Cover
21 The SVLRC would be filled sequentially in four phases. Once the landfill reaches capacity it would be
22 brought to final grade and the final alternative evapotranspirative cover currently approved under the
23 SVI_RC's Closure/Post-Closure Maintenance Plan would be installed(Geosyntec 2002).
24 2.4.5.2 Post-Closure Maintenance and Monitoring
25 WMC has an existing Post-Closure Maintenance and Monitoring Agreement to ensure protection of the
26 surrounding environment during the closure period(a minimum of 30 years after the last wastes have been
27 deposited). This agreement would be extended to include the proposed project area.
28 2.4.5.3 Closure and Post-Closure Fund
29 In order to ensure that funds are available to perform landfill closure and post-closure maintenance,WMC is
30 required(by Condition 24 of CUP-3142-4)to establish a line of credit
31 to ensure site closure let4ef Of eFeElit,PUFSuant to VeRtUFa County QFdinafiee No.3783.WMC has established
32 a line of credit reviewed and monitored by the LEA annually.
33 2.4.5.4 Post-Closure Use of the Site
34 As required by 27 CCR §21190(c),all proposed post-closure land uses, other than non-irrigated open space,
35 shall be submitted to the LEA, LARWQCB,VCAPCD,and local land use agency for review.The LEA must
36 review and approve proposed post-closure land uses if the proposed use involves structures within 1,000 feet of
37 the disposal area,structures on top of waste,modification of the low permeability layer,or irrigation over waste.
Simi Valley Landfill and Recycling Center Expansion Project 2-49
Final F_IR—December 2010
77
2 Project Description
1 2.5 Measures to Minimize Environmental Impacts
2 The measures presented in Table 2.5-1 are included as part of CUP-3142-7 for the existing SVLRC. Only
3 those measures from CUP-3142-7 that address environmental impact minimization are listed in Table 2.5-1.
4 Note also that CUP-3142-7 contains some duplicate or near-duplicate measures from prior permit
s modifications. Only the most recently imposed conditions are retained if they are essentially the same as
6 previously imposed conditions. Administrative measures from CUP-3142-7 are not included in the table.
7 Therefore, the numbers are not sequential. These measures are also applicable to the proposed expanded
8 landfill operations. Because WMC is already complying with these measures, the environmental impact
9 assessments in this EIR assume that they would be implemented by WMC for the proposed new project,as
10 well. This has the effect of reducing the number of impacts identified herein that would require mitigation.
11 Each measure in Table 2.5-1,or a modification thereof at the County's discretion, would be included in the
12 Mitigation Monitoring and Reporting Program to ensure that these measures, as well as newly required
13 mitigation measures based on the current project proposal,are fully implemented if the project is approved.
Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
Previous Conditions Superseded:
The conditions that follow shall supersede all previous conditions pertaining to CUP-3142,commencing on
1 the date that Zoning Clearance for Use inauguration ofthe Landfill Gas-To-Energy Facility is issued pursuant
to Condition No.2 for Major Modification No.7 to CUP-3142.The conditions for Modification 7 are a blend
of conditions previously approved by the Board of Supervisors on November 26,2002 for CUP-3142-6 and
ones that replace or are revised or new additional conditions for Mod. 7.
Commencement and Time Limits of Uses(Revised):
Rights allowed by this permit modification No.7 shall be deemed commenced with the issuance of the Zoning
Clearance for Use Inauguration of The Landfill Gas-To-Energy Facility.Acceptance of wastes,as defined by
Condition 4,Item(a),shall continued to be permitted until:
a. The designated fill elevations in Attachment"A"have been reached;or
b. Thirty(30)years from June 27,2004(the 1989 approved permit ending date),whichever comes first.
c. Modification No. 7 is granted until final expiration of June 27, 2034 or until the landfill no longer
produces methane gas for beneficial use for co-generation of electricity.
Permit Modification No.7 shall automatically expire if any of the following circumstances occur:
5 (1)A Zoning Clearance for Construction of CUP-3142 Modification No.7 has not been issued within six(6)
months of permit approval.The Planning Director may grant a six(6)month extension during the initial
year period based on a written request by the applicant.
(2)If the use for which it was granted is discontinued for a period of 365 days or more.
All other site maintenance activities,post-closure activities,and their attendant structures,may continue for
thirty (30)-years after the site is deemed "closed" by the Planning Director. "Closure" shall mean that all
closure requirements of the Local Enforcement Agency, Regional Water Quality Control Board,and these
conditions have been met(see Condition 24).
The Planning Director may extend the acceptance of refuse for up to eighteen(18)months beyond the thirty
(30) year limit described above in order to prepare the site for closure, to comply with environmental
protection requirements,or to further the public health safety or welfare.
CUP Permit Expiration/Renewal:
If the designated fill elevations have not been exceeded but the 30-year refuse acceptance time limit in
Condition 5 is due to expire,the permittee may file a modification to extend this thirty(30)year time limit.
During processing of this extension request, the permittee may continue landfilling activities until this
modification request is acted on and appeals heard, provided:
6 a.The designated fill contours are not exceeded;and
b.A "complete" application and fee, as determined by the Planning Director, has been submitted and
accepted at least 12 months prior to the expiration of the thirty(30)-year landfill time limit of June 27,
2034,providing that full compliance with all conditions has been accomplished and the use authorized by
this permit will remain compatible to the properties in the general area.
c.Failure of the County to notify the permittee of the above dates shall not constitute grounds for
continuance of this Permit after expiration.
2-50 Simi Valley Landfill and Recycling Center Expansion Project
Final E1R—December 2010
78
2 Project Description
Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
Master Development Plan (Revised):
The permittee shall continue to abide by and implement the Master Development Plan(MDP)as submitted by
Waste Management of California, Inc May of 2003 and approved by the Planning Division under
Modification No.6.The purpose of the MDP is to provide a detailed description of the project as approved,
including construction features,ancillary facilities,and various operational plans and programs necessary to
operate the facility in an environmentally safe and nuisance free manner and mitigate any significant
avoidable environmental impacts identified in the Final Supplemental EIR.The MDP shall be consistent with
the project as approved in this permit,the SWFP,the WDRs,and the County Contract required pursuant to
Ventura County Ordinance No.4155.
Denial or the imposition of conditions of approval must be based on one or more of the following findings:
A. The MDP as submitted is inconsistent with the above mentioned permit and approvals;or
B. The MDP does not provide for an environmentally safe and nuisance free operation;or
C. The MDP does not feasibly mitigate or avoid the potentially significant environmental impacts identified
in the FSEIR.
At a minimum, the following plans and operational programs shall be included in the MDP:
a. Plan sheets,cross-sections and details depicting typical engineering features of the landfill including the
liner and leachate collection and treatment systems,gas control systems,surface water control structures,
construction phasing, soil stockpile areas and final cover as approved by the Regional Water Quality
Control Board and/or the Local Enforcement Agency.
b. Plan sheets showing other on-site ancillary facilities such as entrance facilities, maintenance facilities,
roads,water supply and waste disposal facilities and site access control.
c. Plan sheets showing off-site improvements necessary to the landfill operation, such as transportation,
drainage,water supply,etc.
d. An updated water supply plan describing the improvements to be made to assure adequate potable and
non-potable water for landfill operations,dust control,fire protection,landscaping,human consumption
and hygiene.
e. An updated on-site drainage plan meeting the requirements of the Ventura County Public Works Agency
and the Environmental Health Division.(See Conditions 56 and 57.
f. An updated off-site drainage plan meeting the requirements of the Ventura County Watershed Protection
District.(See Condition 58)
14 g. An updated erosion control plan to minimize erosion and sediment transport associated with excavation
and filling operations.
h. An updated visual impact mitigation program designed to minimize the visual impacts of the site and its
operations on surrounding property owners and to travelers on Route 118.(See Condition 43)
i. An updated fire protection program describing measures to be taken to prevent and fight fires as approved
by the Fire Department.(see Conditions 47,48 and 72-89)
j. An updated litter and illegal dumping control program.(See Condition 45)
k. An updated hazardous waste exclusion program designed to minimize or prevent the illegal disposal of
hazardous wastes at the site.(See Condition 54)
I. An updated radioactive waste exclusion program designed to minimize or prevent the illegal disposal of
radioactive wastes at the site.(See Condition 55)
m. An updated groundwater and leachate monitoring program which at a minimum meets the requirements of
CCR Title 27,Chapter 3, Subchapter 15 and Condition 37.(See Condition 37).
n. An updated gas emissions control and monitoring programs designed to monitor and mitigate the impacts
of off-site migration of gas emissions from the landfill and its associated facilities.(see Condition 38).
o. An updated wind monitoring program to monitor and record wind speed and direction.(See Condition 42).
p. An updated odor control plan to prevent odors from drifting off-site.(See Condition 42).
q. An updated clay and cover availability study to help assure the on-site availability of an adequate quantity
and quality of suitable materials for use in the liner,cap and as cover.(See Condition 51)
r. An updated site sign plan that establishes the type and location of signs for the landfill.(See Condition
52).
s. An updated noise abatement plan to minimize on-site and off-site impacts from noise.(See Condition 53).
t. An updated emergency procedures program to assure that plans are in place and personnel are trained to
respond to on-site emergencies. (See Condition 56).
u. An updated dust suppression program.(See Condition 44).
v. An updated paleontological mitigation program.(See Condition 50).
w. An updated seismic design report documenting that the landfill elements have been designed to withstand
the maximum probable earthquake.(See Condition 49).
Simi Valley Landfill and Recycling Center Expansion Project 2-51
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Table 2.5-1 Measures to Minimize Environmental Effects
Condition Description
Number
Annual Status Report:
By September 1 st of each year beginning in 2003, or other date as approved by the Planning Director, the
permittee shall submit for review and approval to the Planning Director a report in written and graphic form
describing the status of activities at the site. The report shall include, but not be limited to, the following
activities/events, which occurred over the previous year or are expected to occur in the forthcoming year,
unless otherwise specified by the Planning Director:
a. A summary of special occurrences that took place at the site, including but not limited to,those events
listed in California Code of Regulations,Title 27, Section 20510(c).At a minimum,this summary shall
include discovery of hazardous wastes, accidents, complaints, and natural disasters. Detailed Special
Occurrence Logs shall be kept on-site and available for agency inspection and shall include the nature of
the occurrence, the action taken by landfill personnel, the results of the occurrence, if any, and future
corrective/preventative measures.
b. A description of the hazardous waste inspection program for the previous year.Complete documentation
of all such inspections shall be kept on-site and available for agency inspection and shall contain the
information listed in Condition 55, Item(b).
c. A log of the vehicles turned away at the scales. Said log shall include the date of each event, which the
15 vehicle was turned away,the vehicle license number,the owner of the vehicle,and the driver's name.
d. Total number of vehicles,which brought waste to the landfill within the last year.
e. Total tonnage or cubic yards of material deposited at the site.
f Type and numbers of equipment in use or located at the site.
g. Logs for new water, leachate,and gas wells.
h. Number of employees regularly working at the site.
i. Identification of condition or other permit violations or deficiencies noted by various regulatory authorities
and how they have been,are being,or will be, remedied.
j. A facilities map showing all existing and planned (over the next year) buildings, roads, pipelines,
pumping/processing facilities,etc.
k. A current topographic map showing fill, excavation and natural contours within the permit limits. This
should include an estimate of remaining site life and capacity at the site.
1. Clay/cover availability report with projections of clay use and daily cover needs for the next year and the
resulting change in supply.
m. Landscaping plan showing existing and planned(over the next year)plantings, irrigation systems,etc.
n. A reference master chart or report showing schedules and results of preparation operation,monitoring,and
reporting in all major phases of the facilities,with an emphasis on the activities for the upcoming ear.
Permitted Traffic Volume:
23 The amount of traffic generated by the landfill operations approved under Major Modification No.6 is limited
to a maximum of 822 round trips per day,except for the"free days"as directed by the Agreement for the
Operation and Closure of the Simi Valley Landfill pursuant to County Ordinance 4760.
Compliance with County Ordinance No.4155(Revised):
31 The permittee shall at all times comply with the requirements of Ventura County Ordinance 4155 regarding
the operation of solid waste disposal and processing facilities as determined by the Environmental and Energy
Resources Department EERD now Intejzrated Waste Management Department IWMD .
Days of Operation:
The landfill shall be open for receipt of refuse for at least six hours of every day of the year,except that the
landfill may close for the following days: New Year's, Easter Sunday, Memorial Day,July 4, Labor Day,
33 Thanksgiving, and Christmas except as amended by Permit Adjustment No. 20—Sunday Closures, which
allows the landfill to close every Sunday,except the third Sunday of each month.Any modifications to this
schedule shall be proposed by the permittee and approved in writing by the Planning Director prior to any
change occurring, except as otherwise provided as part of the Emergency Procedures Plan. (See
Condition 56).
Hours of Operation:
Operations at the landfill shall only occur between 6:00 AM and 8:00 PM. For this condition, "operations"
shall include but not be limited to: waste receipt and/or disposal,waste handling and/or cover operations,site
grading and/or excavation,or any other heavy equipment operations on the surface or areas surrounding the
refuse column.Any operations at the landfill site as defined above may occur outside the above hours only
34 upon written approval by the Planning Director.Other activities such as gas and leachate collection/disposal,
equipment maintenance,etc.,shall not be limited by this condition,but may be regulated by other conditions
or permits.
In the event that other permits required by the project impose other restrictions on the types of operations or
the hours of operations,the more restrictive requirements shall take precedence.
In the event the landfill is closed unexpectedly for any reason,the permittee shall notify commercial haulers
to the landfill by telephone of said closure as soon after site closure as possible.
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Condition
Number Description
Groundwater and Leachate Monitoring Program (Revised):
The permittee shall abide by and adhere to the updated/expanded Groundwater and Leachate Monitoring
Program (GWLMP) as approved by the LARWQCB and kept on file by the Planning Division, which
incorporates the project as approved under Modification No. 6.The purpose of the GWLMP shall be to:
a. Monitor groundwater and leachate quality and movement within the permit boundaries and,if necessary,
outside the permit boundaries.
b. Conduct special studies to explain unexpected results of routine monitoring and/or fill in gaps in the
existing geology/hydrology/groundwater database, if necessary to adequately characterize the site or
monitor impacts of leachate on groundwater quality.
The GWLMP shall include all routine monitoring required in the WDR as issued and periodically updated by
the Regional Water Quality Control Board as well as any additional monitoring required by the Planning
Director.This monitoring program shall monitor groundwater and leachate quality and movement within the
permit boundaries and, if necessary,outside the permit boundaries.
The GWLMP shall include sampling locations, frequency,chemical parameters,and sampling and quality
37 assurance/quality control(QA/QC) procedures. Sampling and analytical procedures shall be designed and
implemented to assure that results obtained are representative of actual water quality conditions at the
sampling location.
The GWLMP shall include protocols for determining under what circumstances additional verification
monitoring or remedial action investigations are warranted. Such additional monitoring or actions may
include resampling,revision of sampling or analytical procedures,revised QA/QC,or use of additional wells
or laboratories.
The GWLMP shall include "points of compliance"wells immediately adjacent to the refuse column on fee
property owned by the permittee. Said "points of compliance" wells shall mean wells at which State
groundwater standards must be met.
The GWLMP shall require at least quarterly reporting of analytical results and an annual summary report.
Deadlines for report submittal shall be the same as those required in the WDRs.
The GWLMP shall contain a provision that within any 12-month period the Planning Director may conduct
tests of up to four samples drawn from groundwater or leachate monitoring wells. Said tests shall be
conducted by a consultant and laboratory selected by the Planning Director and paid for by the permittee.The
specific tests to be conducted shall be determined by the Planning Director.
Gas Emissions Control and Monitoring Program(Revised):
The permittee shall abide by and adhere to the updated/expanded VCAPCD Gas Emissions Program as
submitted by Waste Management, Inc.dated April 2003,which incorporates the project as approved under
Modification No.6.The purpose of the gas emissions program shall be to reduce landfill gas emissions to,or
close to, the minimum total emissions reasonably possible as determined by the Planning Director in
38 consultation with the VCAPCD and the permittee. Total emissions shall include emissions from any gas
recovery system as well as fugitive emissions from the landfill.
The gas program shall consist of a collection system and a low emissions flare as the primary gas
consumption technology, or other system(s)with comparable emissions rates. Consistent with reasonable
safety considerations, the total system shall be designed and operated so as to collect and consume the
maximum amounts of gas generated at any one time within the viable limits of technology then available as
determined by the Planning Director.(Planning,VCAPCD
Air Pollution Control District Condition Compliance:
39 The landfill operator shall comply with conditions established by the Ventura County Air Pollution Control
District in its Authority to Construct and Permit to Operate entitlements. VCAPCD
Compliance With County Ordinance 4258(Revised):
40 The permittee shall at all times comply with the requirements of Ventura County Ordinance Number 4258
regarding the operation of solid waste disposal facilities,commencing with Section 4700 et al 4730 of Article
I of Chapter 7 of Division 4 of the Ventura County Ordinance Code. EHD
Odor Control Plan(Revised):
The permittee shall abide by and adhere to the updated/expanded Odor Control Plan as submitted by Waste
41 Management,Inc.dated May 2003 and approved by the Planning Division,which incorporates the project as
approved under Modification No.6.The purpose of said plan shall be to prevent odors associated with the
landfill from drifting off-site in concentrations such that they lead to odor complaints from adjacent areas.
Simi Valley Landfill and Recycling Center Expansion Project 2-53
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Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
Wind Monitoring Program:
The VCAPCD's Surface Weather Monitoring System at the Atmospheric Profiler Station located at the
landfill will provide ongoing surface meteorological data, wind speed and direction, temperature, and
42 humidity(precipitation measurements may be added as well)to the operator of the landfill as a reciprocal
service for the VCAPCD project being located at the landfill.
Upon revocation or termination of VCAPCD's weather station at the landfill,the operator of the landfill shall
resume the responsibility of running the wind monitoring program under this condition. Said Program shall
run for as long as landfilling occurs.
Visual Impact Mitigation Program (Revised):
The permittee shall abide by and adhere to the updated/expanded Visual Impact Mitigation Plan(VIMP)as
submitted by Waste Management, Inc. dated May 2003 and approved by the Planning Division, which
incorporates the project as approved under Modification No.6. The VIMP shall have as its purpose to
effectively screen the landfill operations from the view as seen from Route 118 and the surrounding
properties,as well as to mitigate the visual impacts of the refuse column. This program shall be consistent
with the requirements of other appropriate permits and/or regulatory agencies.The mitigation of the visual
impacts of the refuse column shall consider landscaping on specified refuse column elements throughout the
site,and the rounding of slopes on the refuse column at changes in slope angles and consistent with Biology
impacts described under Mitigation Bio-2- Revegetation Plan.
Landscaping plans of the updated VIMP shall be completed at two levels of detail as follows:
1. Master Concept Plan:
The permittee shall abide by and adhere to the updated/expanded)Master Concept Plan(MCP)as submitted
by Waste Management, Inc. dated April 2003 and approved by the Planning Division, which lays out in
general terms the types of plant species, design techniques(i.e.,clusters of variable height species planted
across straight lines in the refuse column,etc.)and other considerations to be used with the updated Specific
Landscape Plans (SLP)(Section II below). The MCP should provide typical examples of how the design
techniques will be applied, as well as generalized maps of the landfill showing the areas to be covered by
specific design techniques as well as the individual SLPs. At a minimum,the updated MCP shall include:
a. The mitigation features included in Final SEIR Section 3.8.4(Visual Mitigation Measures).
b. A phasing schedule for the updated Specific Landscape Plans (Section 11 below). This phasing shall
include the early planting of fast growing screening vegetation in the areas within the permit boundaries
which are not planned for refuse fill or as excavation areas for cover material,and which would screen the
landfill from surrounding visually sensitive areas.The Planning Director,in consultation with the City of
Simi Valley,shall specify which visually sensitive areas will require screening.Such areas may include,
but are not limited to,the six"visual access locations"shown on Page 3.8-5 of the Final SEIR.
43 c. An evaluation of what specific species of trees and shrubs can grow on top and/or on the slopes of a
landfill column, using only the minimum State requirements for final cover material and thickness
consistent with the requirements of planting for Mitigation under Bio-2 — Revegetation Plan. This
evaluation shall discuss and incorporate any regulatory constraints (i.e., limitations on irrigation, etc.),
which other agencies may place on landscaping planted on the refuse column.
d. Identification of refuse column areas,landscape designs,and planting schedule for portions of the refuse
which will not be disturbed for at least 180 consecutive days.Areas to be shown include slopes that have
reached their final grades(except perhaps for final cover),even if the top of the slope is still to be raised
with refuse fill.The landscaping shall be reasonably considerate of ongoing landfill operations.
e. Policies that those areas which will not be disturbed for at least 180 consecutive days,but which are not at
their final contours(except perhaps for final cover)shall be planted with temporary landscaping,such as a
wildflower and/or grass hydroseed mix,on a planting schedule as approved by the Planning Director.
f. Policies that those areas,including slopes,which are at their final contours(except perhaps for final cover)
at least one year prior to site closure,shall have final cover and permanent,approved landscaping installed
within 180 days of cessation of filling activities in that immediate area.
g. A statement that said the updated MCP shall comply with the Ventura County Guide to Landscape Plans,
as may be updated from time to time, except for those portions of the Guide waived, in writing, by the
Planning Director.Grounds for waiver are limited to those areas of the Guide which would conflict with:
1)the provisions or closure requirements of this or other permits issued for the landfill;and/or 2)any other
policy or technical requirements which may make the Guide requirements incompatible with a landfill.
h. A refuse fill phasing schedule which specifies: 1)filling the north area of the landfill as soon as possible,
consistent with the provisions of this and/or other permits;and 2)when filling the northwest corner,first
create a berm of refuse and/or fill to shield any occupied development from Area E(see FSEIR page 3.8-
5)from the view of the remainder of the fill activities.The purpose of this requirement is to mitigate the
nuisance impacts(visual,noise,odor,etc.)of the landfill operation on potential land uses in Area E.
2-54 Simi Valley Landfill and Recycling Center E.zpansion Project
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Table 2.5-1 Measures to Minimize Environmental Effects
Condition Description
Number
i. A policy and implementation schedule demonstrating that only non-potable water shall be used for
landscaping and other non-potable uses(i.e.,equipment wash down,etc.).This policy may be modified or
waived by the Planning Director upon his written finding that non-potable water is not appropriate on
economic or technical grounds.
[1. Specific Landscape Plans
a. Updated Specific Landscape Plans(SLP)shall be developed which specify,at the level of detail required
by the Ventura County Guide to Landscape Plans,the planting details for specific areas within the permit
boundary.
b. Within 120 days of approval of the MDP,SLPs shall be done for the following areas: 1)areas around the
periphery which will not be covered with refuse,or graded for cover;2)areas which have received their
fmal amounts of refuse,but which may or may not have received final cover.
Continued landscape maintenance consistent with approved SI,Ps shall be subject to periodic inspection by
the Planning Director.The permittee shall be required to remedy any defects within a reasonable time period
as specified in writing by the Planning Director.
Additional policies of the VIMP shall state that buildings,outside storage areas,and operation yards shall be
screened from any public street by walls, fences,earth mounds,or landscaping.
All buildings and other structures shall be painted or surfaced as appropriate for the site,subject to approval
by the Planning Director.Said approval shall be through issuance of a Zoning Clearance prior to issuance of
building or other permits for the new entrance facilities. See also Condition 46 for Fire Department
requirements regarding landscaping.
Dust Suppression(Revised):
The permittee shall abide by and adhere to the updated/expanded Dust Suppression Plan(DSP)as submitted
by Waste Management,Inc.dated May 2003 and approved by the Planning Division,which incorporates the
project as approved under Modification No. 6. Said program shall include vegetative ground cover for all
areas of the landfill covered with an intermediate cover layer and shall include the following:
44 1. All unpaved areas will be watered(or treated with environmentally safe dust control agents)as often as
necessary to minimize the amount of fugitive dust that blows off-site.
2. All inactive areas, including all intermediate slopes, will be covered with processed green waste, or
hydroseed,or both,or treated with environmentally safe dust agents,to minimize dust and erosion.
3. All but essential site activities and operations shall cease during high wind events.
4. Vehiclespeed on all unpaved areas shall be limited to no more than 15 miles per hour.
Litter/Illegal Dumping Control Program:
At least twice every day the landfill is open to receive refuse,the permittee shall inspect for,and clean up,all
litter and illegal dumping which occurs in,or adjacent to, the landfill access road and Madera Road. Said
litter/illegal dumping program shall be limited to a distance.75 miles from the landfill access road to the east
bound Madera Road off-ramp,starting from the point where the access road crosses the permit boundary.
The permittee shall clean up all wind-blown litter outside the permit boundary as determined to be necessary
by the Planning Director. In order to comply with this paragraph, the permittee shall make all reasonable
efforts to obtain permission from the affected property owners to gain access to their property for purposes of
litter clean up.This paragraph does not apply to any properties to which the permittee is unable to gain such
access.The permittee shall continue to implement a Covered Vehicle Program,which shall impose a fee or
other requirement on every vehicle billed to a commercial account entering the landfill,which does not cover
open loads of refuse.In the event that a fee or other charges is assessed,the disposition of the received funds
shall be subject to the approval of the EERD(now IWMD).
The permittee shall continue the existing approved Covered Vehicle Program as follows:
45 Covered Vehicle Program:
I. Upon the third occurrence,for a particular person or business,of an untarped load coming to the site,the
load shall be turned away.
2. At the discretion of the landfill, uncovered loads not subject to this program will include loads which
contain material too heavy to blow out of a vehicle during conditions which affect the vehicle on the day it
comes to the landfill(i.e.,concrete,asphalt,heavy furniture,appliances,material,which is appropriately
bagged or in closed containers and not laying loose in the open vehicle,etc.).Anything obviously loose
such as, but not limited to miscellaneous trash or green waste shall be affected by the Covered Vehicle
Program.
3. The landfill shall maintain a record of loads turned away in the"Loads Turned Away"log book which is
located in the scalehouse.This log shall include the following information:date,customer name,vehicle
type, vehicle license plate number, and type of material. This log will be available for the LEA and
Planning Division review during normal business hours.
4. A notice for tarping shall be posted along the right of the haul road leading to the scalehouse(before the
turnout where the port-o-let is presently located)to make customers aware of the requirement to cover
open refuse loads.
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Table 2.5-1 Measures to Minimize Environmental Effects
Condition Description
Number
The landfill shall include notice ofthis program in theirannual newspaper advertisement,which runs between
September and October each year. A copy is sent to the Planning Division. (Also see CUP Condition 52. -
Site Sign Program)
Fire Protection Program (Revised):
The permittee shall abide by and adhere to the updated/expanded Fire Protection Program as submitted by
Waste Management, Inc. dated May 2003 and approved by the Fire Department, which incorporates the
project as approved under Modification No. 6. The Fire Protection Program shall describe measures to be
taken to prevent and fight fires.
At a minimum,said fire protection plan shall include the following specific policies and designs:
a. The landfill shall be maintained with a clearance of flammable material for a minimum distance of 150
feet from the periphery of any exposed flammable solid waste.
b. Any structure,building or part of any structure or building located within 150 feet of the periphery of any
exposed flammable solid waste shall also be maintained with a clearance of flammable material for a
minimum of 150 feet from the periphery of the structure or building.
c. The eight-foot-wide firebreak around the CUP boundary shall be regraded at least annually.
d. Sound and living trees may be left standing within the areas required to be cleared of flammable material,
provided the following requirements are met:
1. Wildfire cannot travel into the canopy of any tree left standing.
2. Any tree left standing does not pose afire safety threat or prevent fire equipment access to and near the
exposed flammable solid waste.
46 3. All dead limbs and all limbs within 10 feet of the ground are removed from any trees left standing.
e. Selected and isolated shrubs may remain within the areas required to be cleared of flammable material is
all dead material is removed and each shrub is trimmed up so that fire cannot travel through the shrub
canopy or pose a fire safety threat.
f. Fire extinguishers shall be installed in accordance with the National Fire Protection Association Pamphlet
#10.Time timing of installation and location of the extinguishers shall be subject to the review of the Fire
Chief.
g. Uniform Fire Code Permits shall be obtained for fuel storage and any other process as may require such
permits.
h. All internal combustion engines used in the operation of the dumpsite shall be equipped with approved
spark arrestors.
Said fire protection plan shall also evaluate the need to implement the recommendations in FSEIR
Sections 3.7.2,3.7.3 and 3.7.4 Impact Analysis,Cumulative Impacts, Mitigation Measures.
i. That smoking by permittee's employees or the public shall be prohibited within the permit boundaries
except in designated areas as approved in writing by the Fire Department and the Planning Director.
j. That prior to issuance of a Building Permit for any combustible construction the permittee shall:
1. Obtain from the water purveyor proof of its ability to supply 500 gallons per minute for two(2)hours;
2. Install one or more approved fire hydrants in locations approved by the Fire Department.
Smoking Prohibited:
Smoking by permittee's employees or the public shall be prohibited within the permit boundaries except in
47 designated areas as approved in writing by the Fire Department and the Planning Director. Smoking is
prohibited within the refuse footprint,on-site structures,and enclosed cab industrial vehicles.(Planning,Fire
Department)
Adequate Fire Flow:
The minimum fire flow required shall be determined as specified by the current adopted edition of the
48 Uniform Fire Code Appendix 111-A and adopted Amendments.Given the present plans and information,the
required fire flow is approximately 2,000 gallons per minute at 20 pounds per square inch for a minimum 2
hour duration. The applicant shall verify that the water purveyor can provide the required volume and
duration at the project prior to obtaining a building permit. Fire Department)
Seismic Design(Revised):
The permittee shall abide by and adhere to the updated seismic design study as submitted by Waste
Management, Inc. dated May 2003 and approved by the Planning Division, which incorporates which
49 incorporates the project as approved under Modification No.6.The study shall demonstrate that the landfill
refuse column,its drainage features,and operating components and appurtenances(permanent stockpiles,new
buildings, etc.) will withstand a Maximum Probable Earthquake (design earthquake). Design plans shall
include a static and dynamic stability analysis.
Paleontological Mitigation Program(Revised):
The permittce shall abide by and adhere to the updated/expanded Paleontological Mitigation Program as
50 submitted by Waste Management, Inc. dated May 2003 and approved by the Planning Division, which
incorporates the project as approved under Modification No.6.
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2 Project Description
Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
Noise Abatement Plan(Revised):
The permittee shall abide by and adhere to the updated/expanded)Noise Abatement Plan as submitted by
Waste Management, Inc. dated May 2003 and approved by the Planning Division, which incorporates the
project as approved under Modification No.6. Said plan shall include:
a. Landfill Facility Design-Design and operate the landfill facility so as not to exceed County of Ventura or
City of Simi Valley noise standards.
b. Landfill Vehicles - Provide landfill equipment with noise suppressing equipment to minimize noise
53 generation to the extent necessary to comply with the criteria as set above.
c. Worker Protection-Workers at the site shall be required to wear protective equipment that reduces their
noise exposure to levels within OSHA standards.
d. Gas Flare Muffling- Any on-site flares shall be contained in noise-reducing housing which meets the
standards established in Item(a)above.
e. Off-Site Noise Monitoring.- The permittee shall conduct off-site noise monitoring as requested by the
Planning Director.
Said plan shall be consistent with the stricter requirements of either;(1)the County of Ventura,or(2)the City
of Simi Valley.
Hazardous Waste Exclusion Program (Revised):
The permittee shall abide by and adhere to the updated/expanded)Hazardous Waste Exclusion Program as
submitted by Waste Management, Inc. dated May 2003 and approved by the Planning Division, which
incorporates the project as approved under Modification No. 6. At a minimum, said hazardous waste
exclusion program shall consist of the following:
a. At least one full time employee specifically trained in hazardous materials identification.Said employee
shall be responsible for inspection of incoming refuse loads for hazardous wastes.Said employee shall be
located at the refuse working face and shall inspect all loads as they are delivered.If hazardous wastes are
found,they are to be removed and disposed in accordance with State regulations.
b. When average daily refuse tonnages are less than 2,000 tons per day, the hazardous waste trained
employee shall randomly select at least five trucks per week for detailed inspection of the contents for
54 hazardous material.When the average daily tonnage exceeds 2,000 tons per day,then ten trucks per week
shall be randomly inspected. Logs of these inspections shall be made available as requested by the
Planning Director, which show the time and date of each inspection,the license number and company
name of the truck inspected,and the results of each inspection.
c. A procedure shall be developed of record keeping, warnings, and notification of appropriate agencies
and/or prohibition of access to the landfill for hauling companies or individuals,which bring in hazardous
wastes to the site.
d. At least twice a year the permittee shall send to all commercial accounts at the landfill a description of the
landfill hazardous waste monitoring program as well as a description of the penalties,if any,associated
with the program.
e. The formal employee-training program shall include information on the identification,safety measures,
and reporting procedures for hazardous material.This information should be re-emphasized on a schedule
approved by the Planning Director for all new and existing landfill employees.
Radioactive Waste Exclusion Program (Revised):
The permittee shall abide by and adhere to the(updated/expanded)Radioactive Waste Exclusion Program as
55 submitted by Waste Management, Inc. dated May 2003 and approved by the Planning Division, which
incorporates the project as approved under Modification No.6. Said program shall have as its purpose the
prevention of significant quantities of radioactive materials from being buried at the landfill,as well as the
identification of the people and/or companies attempting to enter the landfill with such material.
Emergency Procedures Program (Revised):
The permittee shall abide by and adhere to the (updated/expanded) Emergency Procedures Program as
submitted by Waste Management, Inc. dated April 2003 and approved by the Environmental Health
56 Department of the County of Ventura, Resource Management Agency, which incorporates the project as
approved under Modification No.6.At a minimum,said Emergency Procedures Program shall evaluate the
need to include those measures specified in FSEIR Sections 3.7.2,3.7.3 and 3.7.4(Public Safety Mitigation
Measures). Environmental Health, Fire
On-Site Drainage Plan(Revised):
The permittee shall abide by and adhere to the(updated/expanded)On-site Drainage Plan as submitted by
Waste Management, Inc. dated April 2003 and approved by the Environmental Health Department of the
57 County of Ventura, Resource Management Agency, which incorporates the project as approved under
Modification No.6.The plan is to be submitted no later than June 30 of each year.
The plan shall include, but need not be limited to:
1. Map of site(of appropriate scale).
2. Water run-on controls stems.
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Table 2.5-9 Measures to Minimize Environmental Effects
Condition
Number Description
3. Water run-off control systems.
4. Locations and sizes of berms, detention/sedimentation basins, ditches, lined and unlined channels,
culverts,sediment barriers,and control fences.
5. Section drawings of typical berms,ditches, channels,etc.
6. Direction of water sheet flow.
7. Designated location of wet weather area and wet weather cover stockpile. Environmental Health
Public Works Drainage Program:
Within 120 days of issuance of Zoning Clearance No. 1,the permittee shall submit for review and approval to
theVCPWA an updated or expanded landfill drainage program to incorporate the project as approved under
Modification No. 6. At a minimum, said drainage program shall include: a)existing and projected peak
runoff calculations as may be required by the PWA;and b)the design,timing of installation,and maintenance
58 of all the facilities as shown on the plan.Said program shall address the need for,and feasibility of,potential
facilities including those listed in FSEIR Section 3.4.4(Drainage Mitigation Measures)and other facilities as
may be specified by the VCP WA.In said drainage plan the overall design of streets,storm drainage and other
works shall not allow inundation of building pads and shall provide freedom from flood damage to structures
in a 100-year storm. In addition, interim drainage facilities (pending completion of downstream facilities)
shall result in no increase in peak runoff from a 10-year storm. Public Works
Internal Access Roads:
All access roads to the refuse working face shall:
a. Provide safe and continuous access to the working face.
b. Provide a minimum of 30 feet of graded width.
c. Provide dust control as specified in these conditions.
d. Support all refuse and emergency vehicles.
The permanent peripheral access road system shall be at least 24 feet wide,paved with asphalt,and contain at
59 least four foot shoulders.
Both the access roads and the peripheral road shall have the following characteristics:
a. Shall have not less than 13'6"of vertical clearance.
b. Shall have not less than 10'of horizontal clearance from each edge of the road travelway.
c. Shall not exceed a 10 percent grade.
d. Shall have a minimum centerline turning radius of 30 feet.
The specific design parameters,materials,and cross-sections of the roads shall be approved by the Planning
Director and the Public Works Agency rior to construction of the roads.(Planning, Public Works
Stockpile Plans:
Upon approval by the Planning Director,temporary stockpiles can be placed above final refuse fill contours
provided that the temporary stockpiles do not exceed the highest permitted fill elevation by more than ten feet.
60 Stockpiles in excess of 50,000 cubic yards shall require a stockpile plan,which would take into consideration
drainage,erosion,and visual impacts and shall be approved by the Planning Director.The Planning Director
shall review and approve the locations,contours,and timing of soil or clay stockpiles over 50,000 cubic yards
prior to their construction.
Cultural Resources:
61 In the event that human remains or other cultural resources are found,all work in the immediate vicinity shall
cease and the Planning Director shall be notified.
Limitations on Specific Materials to be Received and Stockpiled at the RRA:
All incoming and outgoing green waste stored at the Resource Recovery Area(RRA)shall be chipped and
stored on the 200 by 250 foot asphalt pad shown in Exhibit "A-1" dated January 24, 1995. This exhibit
supersedes all previous maps of the RRA.
All drainage from the RRA area, including the asphalt pad,shall drain into the existing detention/
sedimentation basin shown on Exhibit"A-1". The total amount of materials to be received and stockpiled
63 at the RRA at any one time shall be limited to the following:
Material Quantity
a. Concrete/asphalt 40,000 cu.yd.
b. Wood waste/green waste and
shredded wood 50,000 sq. ft.
c. White goods,scrap metal(see Condition 80)
d. Tires(see Condition 80)
Pursuant to the above Permit Adjustment No. 19,the above changes apply to Condition 63.
Nuisance Prohibited(Revised):
No noise,dust or odors from the operations approved by Modification No.6 shall escape beyond the boundaries
65 of CUP-3142 such that they cause a nuisance to nearby land uses. Compliance with this condition shall be
determined by the Planning Director. Any such compliance determination shall in no way affect any similar
compliance determinations made by other agencies or divisions including the VCAPCD and/or the LEA.
2-58 Simi Valley Landfill and Recycling Center Expansion Project
Final E/R—December 2010
86
2 Project Description
Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
Compliance with Facility Permit:
67 The design and operation of the resource recovery area program shall be in compliance with the Solid Waste
Facility Permit as issued by the Local Enforcement Agency(LEA). EIID
Required Reports
Required reports,which are deemed necessary to comply with County ordinance,the California Integrated
Waste Management Act,or any applicable laws and regulations,or subsequent laws,and regulations,shall be
electronically submitted to the Ventura County Integrated Waste Management Division (IWMD) unless
68 another form of submission is requested. Required reports shall be delivered to the IWMD according to the
following schedule:
1. Monthly reports are due within 15 days of the close of the previous month.
2. Quarterly reports are due no more than 45 days after the close of the previous quarter.
3. Annual reports are due by February I"of each calendar year.
Requirements to Obtain VCAPCD Permits(Revised):
69 The permittee shall obtain APCD permits,including Authority to Construct permits,Permits to Operate,and
Part 70 Permits, for facility equipment as necessary. Required permits shall be obtained prior to the
installation or operation of the subject equipment. VCAPCD
VCAPCD Rules and Regulations(Revised):
70 The permittee shall comply with any and all applicable Rules and Regulations of the VCAPCD. Such rules
shall include, but not be limited to, Solid Waste Disposal Sites; Rule 74.17.1 Municipal Solid Waste
Landfills; Rule 33-Part 70 Permits; Rule 50—Opacity;and Rule 51 --Nuisance.
Stormwater Pollution Prevention Plan/Notice of Intent(Revised):
The permittee shall abide by and adhere to the Notice of Intent(NOI)and the required Stormwater Pollution
Prevention Plan(SWPPP)as submitted by Waste Management,Inc.dated June 2002,to the Ventura County
71 Watershed Protection District, Water Quality Section and the Planning Division for review, which
incorporates.The Standard Industrial Classification(SIC)of the subject business is required to file underthe
SWRCB Water Quality Order No 97-03-DWQ National Pollutant Discharge Elimination System(NPDES)
General Permit No.CA000001. Public Works Agency, Watershed Protection District
MITIGATION MEASURE AQ-2 DIESEL RETROFIT:
All existing diesel-fueled engines and vehicles used at the landfill shall be evaluated,and wherever feasible,
retrofitted with state-of-the-art catalyzed diesel particulate filters.Vehicles and engines so retrofitted shall be
94 required to use very low-sulfur fuel to prevent fouling of the catalyst and clogging of the filters. (Note:
"Feasible"means"capable of being accomplished in a successful manner within a reasonable period of time,
taking into account economic,environmental, legal,social,and technological factors" [California Code of
Regulations§15364].As lead agency,the VCAPCD would be responsible for determining the feasibility of
this mitigation measure.
MITIGATION MEASURE PH-1 REMEDIATION OF SOIL CONTAMINATION:
In the event that contaminated soil or underground piping or other oil field infrastructure is uncovered during
grading or excavation, all work must cease until appropriate site assessment and remediation efforts are
completed. Typically, soil contamination associated with a former producing oil field is assessed and
remediated by completing the following,which would reduce potentially significant impacts associated with
on-site oilfield waste to less than significant:
a. Conduct a modified Phase 1 environmental site assessment(ESA), which would consist of a historical
review of oil field operations on the site to determine the locations of former potential sumps, tanks,
pipelines,and processing equipment;
b. Conduct a Phase 11 ESA,which would consist of subsurface sampling in areas of potential contamination,
97 as identified in the Phase I ESA;and
c. Excavate the contaminated soil in applicable areas identified in the Phase 11 ESA,and dispose the soil at a
facility permitted for disposal of such waste.Alternatively,the contaminated soil may be remediated in-
situ(i.e., in-place)through various methods.
d. Implement the following actions to protect the abandoned oil well in the northeast corner of the site:
e. Accurately locate the abandoned oil well through surveying,and post a well marker visible to equipment
operators.
Complete grading and excavations in the vicinity of the abandoned oil well in accordance with the California
Department of Conservation Division of Oil,Gas,and Geothermal Resources(DOGGR)Construction Project
Site Review and Well Abandonment Procedures, which includes providing future access to the well for
possible reabandonment activities.In accordance with these procedures,the DOGGR would decide whether
the well requires additional abandonment work.
Simi Valley Landfill and Recycling Center Expansion Project 2-59
Final FUR—December 2010
87
2 Project Description
Table 2.5-1 Measures to Minimize Environmental Effects
Condition
Number Description
MITIGATION MEASURE B10-2 REVEGETATION PLAN:
A Revegetation Plan shall be developed and implemented to address losses of native habitats through
revegetation efforts that emphasize native species.The plan,which shall be subject to review and approval by
the Ventura County Planning Division prior to its implementation,shall include the following:
• The plan shall address seeding and planting of intermediate slopes,permanent slopes,and closed portions
of the landfill. Intermediate slopes may be seeded or planted with non-native, non-invasive species.
Permanent slopes and closed portions of the landfill shall be seeded and planted with native species with
the goal of recreating viable native habitats over time.
• Native plants and seed stock shall be locally collected(from the Simi Valley area)to maintain the genetic
integrity of the local flora.An attempt shall be made to restore some of the existing native plant diversity
102 by specifically including some of the less common native species (such as Catalina mariposa lily)
currently found on the site.
• Non-native, non-invasive species may be used for short-term erosion control (such as barley on
temporarily denuded slopes) or for long-term visual mitigation as specified in the Visual Impact
Mitigation Program(CUP Condition 51).Where invasive species have been used in the past,they will be
maintained.If planted invasive species die or are removed,replacement plantings will be of non-invasive
species.The plan shall address maintenance and reduction of non-native invasive plant species.The non-
native plants/escaped exotics listed in the Ventura County Landscape Design Criteria(Ventura County
RMA 1992)shall be targeted as undesirable plants.The goal is not to achieve complete eradication,but
rather to reduce the likelihood that non-native invasive species will escape into adjacent areas and to
reduce their presence at the landfill site. _
Compliance with Simi Valley Landfill Gas Royalties Agreement(EERD Inow IWMDI)
At all times the permittee shall comply with provisions set forth in the Simi Valley Landfill Gas Royalties
115 Agreement as approved by the Board of Supervisors on June 17,2003,and may be amended from time to
time. Any non-compliance of the Simi Valley Landfill Gas Royalties Agreement shall be deemed to be a
violation of the Conditional Use Permit.
116 Access Road Width--An on-site access road width of 25 feet and off-street parking shall be provided.
Turnarounds—Approved turnaround areas for fire apparatus shall be provided when dead-end Fire
117 Department access roads/driveways exceed 150 feet.Turnaround areas shall not exceed a five percent cross
slope in any direction and shall be located within 150 feet on the end of the access road/driveway.
Hydrant Location Markers—Prior to occupancy of any structure,blue reflective hydrant location markers
118 shall be placed on the access roads in accordance with Fire District standards.If the final asphalt cap is not in
place at time of occupancy,hydrant location markers shall still be installed and shall be replaced when the
final asphalt cap is completed.
Hazard Abatement--All grass or brush exposing any structure(s) to fire hazards shall be cleared for a
119 distance of 100 feet prior to construction of any structure and shall be maintained in accordance with VCFPD
Ordinance. _
120 Spark Arrester--Spark arresters shall be installed and maintained on all internal combustion engines.
Prior to installation, an Authority to Construct must be issued by the VCAPCD. Additionally, prior to
operation,a temporary Permit to Operate must be issued by VCAPCD.Demonstration of compliance with the
121 following VCAPCD rules shall be required during the Authority to Construct and Permit to Operate
application process: Rule 26(New Source Review), Rule 74.9(Stationary Internal Combustion Engines),
74.17.1 (Municipal Solid Waste Landfills and Rule 51 (Nuisance).
122 The applicant shall submit an application to VCAPCD to modify their Part 70 permit to include the landfill
as to energy facility See VCAPCD Rule 33 for details).
2.6 Intended Uses
2 The EIR and other studies related to the proposed project will provide information necessary for the County
3 of Ventura to consider approval of the project.In accordance with CEQA,the purpose of this EIR is to inform
4 the County, which is serving as lead agency, of the potentially significant environmental impacts resulting
5 from implementation of the proposed project, alternatives to the project, and mitigation measures that may
6 reduce or avoid any identified significant environmental effects. This EIR would also be used as an
7 informational document by public agencies in connection with any approval or permit necessary for the
8 construction or operation of the project.
2-60 Simi Valley Landfill and Recycling Center Expansion Project
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88
2 Project Description
1 The following are the lead and responsible agencies that are expected to exercise decisionmaking authority
2 over the project and the necessary and the discretionary permit(s), or other approvals, required for the
3 proposed project.
4 • Ventura County—Ventura County Planning Division Lead is the lead agency, and has principal
5 responsibility for approving the proposed project and for implementation ofCEQA. It is responsible
6 for reviewing CUP major modification applications and proposals to modify the existing facility
7 pursuant to such conditional permit to implement County policies.
s o Conditional Use Permit(CUP-3142-7)establishes conditions that govern all aspects of the use of
9 the site. CUP-3142-7 Condition No. 19 requires the Planning Director to conduct a condition
10 compliance review approximately every 5 years. In order to expand the landfill operations and
11 extend the duration of operations,a major modification of the existing CUP-3142-7 is required.
12 Compliance with CUP-3142-7 dictates that operations at the SVLRC must comply with all
13 regulatory standards for waste handling and disposal.
14 o Ventura County Environmental Health Division (EHD)—EHD acts as the Local Enforcement
15 Agency(LEA)on behalf of the Cal Recycle(formerly CIWMB). As the LEA, the EHD issues
16 the Solid Waste Facility Permit (SWFP). The proposed project would require approval of a
17 revision to the existing Solid Waste Facility Permit from EHD.
18 The SVLRC operates under SWFP 56-AA-0007, issued on May 16,2003,by the California
19 Integrated Waste Management Board (CIWMB). In Ventura County, the Resource
20 Management Agency's Environmental Health Division(EHD)acts as the Local Enforcement
21 Agency(LEA)on behalf of Cal Recycle(formerly CIWMB).As the LEA,the EHD issues
22 the SWFP. A revised SWFP will be necessary for the proposed SVLRC expansion project.
23 In order to receive a revised SWFP,the landfill operator must submit an application to the
24 EHD.
25 o Additionally, approvals may be required from Ventura County Building and Safety,
26 Environmental Health, and Fire Department.
27 • CalRecycle—The proposed project would require approval of a revision to the existing Solid Waste
28 Facility Permit from Cal Recyle, which assumed the duties of the California Integrated Waste
29 Management(CIWMB), when that agency was eliminated.
30 • California Department of Fish and Game—The proposed project would require approval of a
31 Streambed Alteration Agreement and possibly an incidental take permit.
32 • Los Angeles Regional Water Quality Control Board(LARWQCB)--The SVLRC operates under
33 WDR Order No. R4-2003-0152 issued by the LARWQCB on December 4, 2003. The proposed
34 project would require approval of revision to the existing Waste Discharge Requirement(WDR)or
35 a new WDR from LARWQCB. WDR Order No.R4-2003-0152 supersedes and rescinds all previous
36 requirements and orders adopted by the Board for this facility.The main intent of this permit is to: 1)
37 preserve the quality of receiving waters suitable for domestic and irrigation uses;2)prevent creation
38 of a nuisance as a result of the disposal of wastes at this site; and 3) implement monitoring and
39 reporting programs. WDRs contain lists of acceptable restricted materials that can be disposed at the
40 facility, groundwater monitoring and protection methods,and site closure requirements.
41 • Ventura County Watershed Protection District(VCWPD}—The proposed project would require a
42 VCWPD Watercourse Permit because a portion of the project would impact a VCWPD red-line
43 stream that is not in a VCWPD right-of-way or facility.
44 • Ventura County Air Pollution Control District (VCAPCD)-- 1'he SVLRC operates under
45 Operating Permit issued by the VCAPCD dated June 7, 2007. The proposed project would require
46 approval of modification to the existing Operating Permit from VCAPCD. In addition,the project
Simi Valley Landfill and Recycling Center Expansion Project 2-61
Final EIR–December 2010
89
2 Project Description
1 would require approval of an application for an Authority to Construct and Operating Permit for the
2 new portions of the facility.
3 • City of Simi Valley—The proposed project may require an amendment to the City of Simi Valley
4 General Plan to remove the unbuilt Alamos Canyon Road from the Plan's Circulation Element.
s • United States Army Corps of Engineers(USACE)--The proposed project may require an approval
6 from the USACE if jurisdictional wetlands are found on site and if those wetlands will be subject to
7 fill.
s • United States Fish and Wildlife Service (FWS}—"The proposed project may require that the
9 USACE consult with the FWS pursuant to section 7 of the Endangered Species Act if protected
io species are found to be on site and if those species may be affected by the project.
2-62 Simi Valley Landfill and Recycling Center Expansion Project
Final EIR–December 2010
90
Simi Valley Landfill and Recycling Center FOR Mitigation Monitoring Program
Monitoring Timing & Monitoring Standard of Compliance Verificatlon
Mitigation Measure Responsibility Frequency Work Program Success
Initial Date Comments
Air Quality
AQ-1:The construction contractor shall implement
the following measures to mitigate ozone precursor
emissions from on-site off-road construction
equipment:
1. All construction equipment shall meet the EPA
Tier 3 nonroad equivalent standards.The
construction contractor shall be exempt from
this requirement if he provides proof that a
given piece of equipment is,unavailable within
California that meets Tier 3 standards.
2. Minimize equipment idling time.
n3. Maintain equipment engines in good condition
and in proper tune as per manufacturers' Ventura County Verify EPA Tier 3 or Upon delivery of Compliance
specifications. construction with Tier 3 or 4
—i Planning and APCD 4 certification
--I 4. Lengthen the construction period during smog equipment emissions
season (May through October),to minimize the
0 number of vehicles and equipment operating at
2 the same time.
m 5. Encourage the use of alternatively fueled
Z construction equipment,such as CNG, LNG,or
—I electricity.
O) 6. All nonroad diesel-powered equipment used for
facility construction shall meet U.S.
Environmental Protection Agency Tier 4
emission standards as applicable to their power
rating.
AQ-2:Additional Fugitive Dust Controls for Periodic Applicant shall
Construction. inspections during maintain a log of all Demonstration
compliance
The calculation of unmitigated fugitive dust construction of dust control
emissions from proposed construction activities is facilities and measure with measures
based upon compliance with VCAPCD Rule 55, Ventura County via quarterly
Fugitive Dust,which is assumed to produce a 50 Planning and APCD landfill cells(once implementation dust control
percent reduction in PMlo emissions from during including date,
uncontrolled levels.This would occur with the use of construction of a conditions,and measure
rigorous watering of the site and other control new cell and steps taken to implementation
measures,such as a limitation of vehicle speeds to quarterly for comply which shall log.
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
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Monitoring Timing & Monitoring Standard of Compliance Verification
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15 mph on-site. facilities be provided
The proposed construction contractor shall develop construction) quarterly to the
and implement dust control methods to achieve a 90 ACPD.
percent reduction of fugitive dust emissions from
uncontrolled levels.Additional control measures to
reduce fugitive dust may include,but are not limited Verify
to,the following: implementation of
1. Designate personnel to monitor the dust control measures by APCD
program and order increased watering,as based on applicant's
necessary,to ensure a 90 percent control level. quarterly
Their duties shall include holiday and weekend
periods when work may not be in progress. compliance logs.
2. Apply approved non-toxic chemical soil
stabilizers according to manufacturers'
specifications to all inactive construction areas
or replace groundcover in disturbed areas.
3. Provide temporary wind fencing around sites
being graded or worked.
4. Cover truck loads that haul dirt,sand,or gravel
or maintain at least two feet of freeboard in
accordance with Section 23114 of the California
Vehicle Code.
5. Ensure dust is not tracked onto paved roads in
compliance with APCD Rule 55.
6. Suspend all soil disturbance activities when
winds exceed 25 mph as instantaneous gusts or
when visible dust plumes emanate from the site
and stabilize all disturbed areas.
7. Sweep all streets at least once a day if visible soil
materials are carried to adjacent streets
(recommend water sweepers with reclaimed
water).
8. Apply water three times daily,or non-toxic soil
stabilizers according to manufacturers'
specifications,to all unpaved parking or staging
areas or unpaved road surfaces.
9. Pave road and road shoulders.
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
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Monitoring Timing & Monitoring Standard of Compliance Verification
Responsibility Frequency Work Program Success Initial Date Comments
AQ-3:To reduce peak daily emissions of ROC and
NOx from project operations,the landfill operator
shall implement the following measures to mitigate
ozone precursor emissions from on-site off-road
mobile equipment:
1. Beginning in 2009, convert all equipment to Compliance
engines with EPA nonroad Tier 3 standards.The with Tier 3 or 4
landfill operator shall be exempt from this emissions and
requirement if he provides proof that a given written
piece of equipment is unavailable within Upon delivery of verification
California that meets Tier 3 standards. Ventura County Verify EPA Tier 3 or
construction provided to
2. Minimize equipment idling time. Planning and APCD 4 certification
equipment County of Tier 3
3. Maintain equipment engines in good condition or 4 compliance
and in proper tune as per manufacturers'
specifications. or equipment
4. Encourage the use of alternatively fueled conversion or
equipment,such as CNG, LNG,or electricity. exemption
5. All nonroad diesel-powered equipment used for
facility operation shall meet U.S. Environmental
Protection Agency Tier 4 emission standards as
applicable to their power rating.
AQ-4:Simi Valley Landfill Emissions Reduction
Program Agreement.
In instances,when air quality impacts from mobile Execution of a
sources due to project operations cannot be binding agreement
mitigated to insignificant levels with the available between the
air pollution control measures recommended for applicant and
the project,the VCAPCD, in its Air Quality a pp
Assessment Guidelines, recommends implementing Prior to issuance of County to ensure
Ventura County Compliance
an Emissions Reduction Program to ensure the Conditional payment of fees and
additional mitigation of air quality impacts by Planning and APCD with agreement
requiring the project proponent to contribute funds Use Permit the allocation of
for programs that reduce air pollutant emissions funds to
from non-project sources. However,while several appropriate
municipal jurisdictions in the county have enacted emission reduction
air emissions mitigation programs in the form of programs
Transportation Demand Management(TDM)
programs,Ventura County has not established a
Page 3 of 31
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
Mitigation Measure
Monitoring Timing & Monitoring Standard of Compliance Verification
Responsibility Frequency Work Program Success Initial Date Comments
Government Code section 66000 et seq.fee rule or
made a Board of Supervisors commitment to adopt
such a fee rule to assess,collect,and spend such
fees on mitigation programs.
Therefore,to accomplish the purposes of an
Emissions Reduction Program,some other legally
enforceable,feasible mechanism to achieve the
same result is required. In this instance,a legally
enforceable agreement between the County of
Ventura,VCAPCD,and the applicant(WMI)could be
executed such that funding would be provided by
the applicant via the agreement to the VCAPCD for
the purpose of funding emission reduction
programs in Ventura County, based on estimated
mobile source emissions from operations in excess
of standards.
Such an agreement would, at a minimum,have the
following features:
• A binding agreement would be executed by the
County of Ventura,the VCAPCD,and the
applicant wherein the applicant commits:
• To the payment of fees,calculated based
on the amount of project operational
emissions from mobile sources in excess of
standards, into a fund administered by the
VCAPCD. Fees would be determined based
on the project's mobile source emissions in
excess of standards and the cost-
effectiveness of projects funded by the
VCAPCD's Carl Moyer Memorial Air Quality
Standards Attainment Program.
• Pay the assessed fees over a time period
mutually agreeable to all parties.
• The VCAPCD would be entitled to recover all
cost of administrating the expenditure of the
funds so collected.
• The fees would be used by the VCAPCD to fund
emission reduction projects in Ventura County.
Projects that could be funded include, but
would not necessarily be limited to, project
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
Monitoring Timing & Monitoring Standard of Compliance Verification
Mitigation Measure Responsibility Frequency Work Program Success
Initial Date Comments
types eligible for funding under the VCAPCD's
emission reduction incentive programs such as:
o The Carl Moyer Memorial Air Quality
Standards Attainment Program,
o Clean Air Fund,
o The Lower Emissions School Bus Program,
and
c The Lawn Mower Trade-In Program.
Emission reduction programs such as the one
described above facilitate reductions in emissions
by reducing individual vehicle emissions(buses,
trucks,etc.) and emissions from other devices and
equipment powered by internal combustion
engines through the use of more efficient engines,
less polluting fuels,or electric or hybrid power
sources. It is uncertain the extent to which the Simi
Valley Landfill and Recycling Center Emissions
Reduction Program would offset overall project-
related vehicular emissions and it is not possible to
calculate what those reductions might be because
the specific emission mitigation projects are
unknown at this time. However, implementing an
Emissions Reduction Program Agreement for the
proposed Simi Valley Landfill expansion project is
considered an effective emission reduction
measure.
AQ-5:The calculation of unmitigated fugitive dust Compliance
emissions from proposed construction and with Tier 3 or 4
operational activities is based upon compliance with
VCAPCD Rule 55, Fugitive Dust,which is assumed to Inspections during emissions and
produce a 50 to 75 percent reduction in PM10 cell grading and Verify written
emissions from uncontrolled levels depending on Ventura County
p g once during implementation of verification
the source type.This would occur with the use of Planning and APCD
rigorous watering of the site and other control construction mitigation measures provided to
measures,such as a limitation of vehicle speeds to operations County of Tier 3
15 mph on-site. or 4 compliance
The project landfill operator shall develop and or equipment
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
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Monitoring Timing & Monitoring Standard of Compliance Verification
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implement dust control methods to achieve a 90 conversion or
percent reduction of fugitive dust emissions from exemption
uncontrolled levels.Additional control measures to
reduce fugitive dust shall include, but are not limited
to,the following:
1. Designate personnel to monitor the dust control
program and order increased watering,as
necessary,to ensure a 90 percent control level.
Their duties shall include holiday and weekend
periods when work may not be in progress.
2. Apply approved non-toxic chemical soil stabilizers
according to manufacturers'specifications to all
inactive construction and operational areas or
replace groundcover in disturbed areas.
3. Provide temporary wind fencing around sites
being graded or worked.
4. Cover truck loads that haul dirt,sand,or gravel or
maintain at least two feet of freeboard in
accordance with Section 23114 of the California
Vehicle Code.
5. Ensure dust is not tracked onto paved roads in
compliance with APCD Rule 55.
6. Suspend all soil disturbance activities when winds
exceed 25 mph as instantaneous gusts or when
visible dust plumes emanate from the site and
stabilize all disturbed areas.
7. Sweep all streets at least once a day if visible soil
materials are carried to adjacent streets
(recommend water sweepers with reclaimed
water).
8. Apply water three times daily, or non-toxic soil
stabilizers according to manufacturers'
specifications,to all unpaved parking or staging
areas or unpaved road surfaces.
9. Pave road and road shoulders.
AQ-6:Odor Control Plan.The landfill operator shall
Periodic Verify
implement the currently approved 2003 Odor Ventura County Compliance
inspections during implementation of
Control Plan during proposed operations at the Planning and APCD with measures
SVLRC.This plan shall be updated, as deemed operations measures
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Simi Valley Landfill and Recycling Center FEIR Mitigation Monitoring Program
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necessary to comply with current regulations, by
the APCD and Planning Division.
AQ-7. Additional Alternative Fuels Collection Periodic
Trucks.The landfill operator shall operate a inspections during
collection truck fleet that is powered by at least 50 operations Compliance
percent alternative fuels.The definition of Ventura County Verify with measures
alternative fuels includes LNG, LPG,compressed Planning and APCD Applicant to implementation of and
natural gas(CNG),or electric power.The landfill maintain refueling measures maintenance of
operator shall achieve this level of operation by log of fuel used for refueling log
January 1, 2020. every vehicle
refueling
AQ-8. Use Biodiesel Blends in Diesel-Powered Off-
Road Equipment and Collection Trucks.The
applicant shall maximize the use of biodiesel in off-
road equipment and diesel-powered collection Periodic
trucks.The CO2e emission factor for 100 percent inspections during
biodiesel is about 7 percent lower than ultra-low operations Verify Compliance
sulfur diesel (ULSD).The most readily available implementation of with measures
form of biodiesel is a blend of 20/80 percent Ventura County Applicant to measures and and
biodiesel/ULSD b ,the use of which Planning and APCD
y weight g (B20) maintain refueling review refueling log maintenance of
would result in an approximately 2 percent log of fuel used for for biodiesel refueling log
reduction in GHG emissions relative to ULSD. Use of every vehicle
fuel with a higher biodiesel/ULSD ratio would result refueling
in higher GHG reductions. However,higher bio-
diesel percentages than B20 may result in reduced
power and/or require engine modifications.
Water Resources
WR-1:Compliance with Surface Quality Urban Impact Applicant to Prior to Phase I Verify compliance If objectives are
Mitigation Plan(SQUIMP): promptly transmit operations and with water quality met,no action.
Intent:In order to mitigate for the impacts to the surface monitoring results following every toe objectives. If not,order
water and stormwater resources,the proposed project to VC Watershed barrier sampling cessation of use
shall meet all project design requirements of the
provisions as contained in Part 4.C.,"Programs for Protection District analysis as soon as Watershed of toe barrier
Planning and Land Development"of the July 2000 following required results are Protection District- liquids for dust
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Regional Water Quality Control Board(Order No.00-018) tow barrier liquids available. Surface Water control.
Ventura Countywide Municipal Stormwater National sampling.VC Quality Section staff Develop
Pollutant Discharge Elimination System(NPDES)Permit Watershed • Items(a to c) will review the alternative
CAS004002. shall be
Protection District submitted materials procedure.
to review results submitted to for consistency with
Description of Requirement:The proposed development the Watershed
meets at least one of the Municipal NPDES Permit upon receipt. Protection the Municipal
applicability criteria for new development or District-Surface NPDES Permit and
Water Quality 2002 TGM.
redevelopment projects(Part 4.C.)and therefore the Section for
applicant shall submit a complete Surface Quality Urban review and
Impact Mitigation Plan(SQUIMP)in accordance with approval prior
provisions of the 2000 Municipal NPDES Permit and the to issuance of
2002 Ventura Countywide Stormwater Program Zoning
"Technical Guidance Manual for Stormwater Quality Clearance for
Control Measures"(TGM) Construction.
• Items(d and e)
Documentation:The applicant shall submit the following shall be
items to the Watershed Protection District-Surface submitted to
Water Quality Section for review and approval: the Watershed
Protection
District-Surface
a) A complete SQUIMP Worksheet form available Water Quality
at(http://yentura.org/rma/planning/Permits/ Section Prior to
discretionary.html) Zoning
b) A site plan prepared and stamped by a Clearance for
California licensed civil engineer or land Use
surveyor that accurately delineates the location Inauguration.
of the proposed development,existing and
proposed impervious surfaces,storm drain
system elements,general drainage pattern,
and proposed site-specific SQUIMP Best
Management Practices(BMPs)strategies.
c) Drainage Study or Hydrology Report prepared
and stamped by a California licensed civil
engineer including applicable calculations of
stormwater quality design flow and volume to
meet 2002 TGM requirements and standards.
d) A written Operations and Maintenance Manual
detailing how the proposed and installed BMPs
devices will be maintained in accordance with
the Appendix D of the 2002 TGM.
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e) The applicant shall provide the Watershed
Protection District-Surface Water Quality
Section with a copy of recorded County's
"Covenant for Maintenance of Stormwater
Treatment Device"(form is available at
http://ventura.org/rma/planning/Permits/
discretionarv.html),which requires all property
owners and their successors in interest to
assume all BMPs duties and responsibilities
including, but not limited to,maintenance of all
BMPs and all equipment which is required for
operation of BMPs. Contained within the
Covenant and Deed Restriction must be a
description of the BMPs that are being
provided as part of the project,a description of
the maintenance requirements and how the
necessary maintenance shall be performed.
Timing:
• The above-listed items(a to c)shall be
submitted to the Watershed Protection District
-Surface Water Quality Section for review and
approval prior to issuance of Zoning Clearance
for Construction.
• The above-listed items(d and e)shall be
submitted to the Watershed Protection District
-Surface Water Quality Section Prior to Zoning
Clearance for Use Inauguration.
Mitigation Monitoring&Reporting Program:Watershed
Protection District-Surface Water Quality Section staff
will review the submitted materials for consistency with
the Municipal NPDES Permit and 2002 TGM.
WR-2a:General Industrial Stormwater Permit No. Applicant to First rainfall event Verify compliance If objectives are
CAS000001 Requirements promptly transmit during Phase I with water quality met, no action.
Intent: In order to mitigate for the impacts to the results of required operations and objectives. If not,order
stormwater resources, the applicable project shall stormwater runoff following every cessation of use
maintain compliance with all water quality sampling to VC stormwater runoff The applicant shall of toe barrier
provisions in accordance with NPDES General Watershed sampling analysis prepare and submit liquids for dust
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Industrial Stormwater Permit No. CAS000001, Protection District as soon as results the following items control.
Waste Discharge Requirements for Discharges of upon completion. are available. to the Watershed Develop
Stormwater Runoff Associates with Industrial VC Watershed Protection District— alternative
Activities. Protection District • The listed items Surface Water BMPs.
to review results shall be Quality Section for
Description of Requirement: For the proposed upon receipt. submitted to review upon Watershed
the Watershed
project, the applicant shall ensure coverage and Protection request: Protection
compliance with the State Water Resources Control District— a)Copy of a current District—
Board NPDES General Industrial Stormwater Permit Surface Water Notice of Intent
No. CAS000001. Quality Section (NOI) in Surface Water
for review Prior Quality
to Zoning accordance with
Documentation: The applicant shall prepare and Clearance for the State Water Section staff
submit the following items to the Watershed Use Resources will review the
Protection District —Surface Water Quality Section Inauguration or Control Board submitted
for review upon request: upon request. requirements materials to
under the NPDES verify that the
a) Copy of a current Notice of Intent(NOI) in General facility is
accordance with the State Water Industrial
Resources Control Board requirements Currently
under the NPDES General Industrial Stormwater covered under
Stormwater Permit No.CAS000001; Permit No. the NPDES
b) Site-specific Stormwater Pollution CAS000001;
Prevention Plan (SWPPP)in accordance General
with the State Water Resources Control b)Stor specific Industrial
Board requirements under the NPDES Stormwater
General Industrial Stormwater Permit No. Pollution Stormwater
CAS000001; Prevention Plan Permit No.
c) Annual Report including sampling results (SWPPP)in CAS000001.
in accordance with the State Water accordance with
Resources Control Board requirements
under the NPDES General Industrial the State Water PWA staff will
Stormwater Permit(No. CAS000001 Resources review the
Timing: Control Board submitted
requirements materials for
• The above listed items shall be submitted under the NPDES consistency
to the Watershed Protection District— General with the NPDES
Surface Water Quality Section for review Industrial Permits. Up-to-
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Prior to Zoning Clearance for Use Stormwater date and site-
Inauguration or upon request. Permit No. specific SWPPP
CAS000001; certified as
Mitigation Monitoring & Reporting Program: c)Annual Report local SWPPP
Watershed Protection District — Surface Water including shall be kept
Quality Section staff will review the submitted sampling results on-site for
materials to verify that the facility is currently in accordance periodic review
covered under the NPDES General Industrial with the State by PWA—
Stormwater Permit No. CAS000001. Water Resources Development
Control Board and Inspection
WR-2b: NPEDES Municipal Stormwater Compliance requirements Services.
with Construction Activities under the NPDES
General
Intent: In order to mitigate for the impacts to the Industrial
stormwater resources during construction Stormwater
activities, the applicable project shall maintain Permit(No.
compliance with all water quality provisions in CAS000001
accordance with the Ventura Countywide
Municipal Stormwater National Pollutant Discharge
Elimination System (NPDES) Permit CAS004002.
Description of Requirement: The applicant shall
ensure compliance and the implementation of an
effective combination of erosion and sediment
control Best Management Practices (BMPs) as
applicable in accordance with Subpart 4.F
"Development Construction Program" of the
Municipal Stormwater NPDES Permit CAS004002.
Documentation: The applicant shall prepare and
submit the following items to the County's Building
and Safety Division for review:
a) A complete worksheet for"Best
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Management Practices for Construction
Activities as applicable to the proposed
project.The form is available at:
b) http://portal.countyofventura.org/portal/
page/portal/PUBLIC_WORKS/engineerings
ervices/dis/toc
Timing: Prior to Issuance of Building Permit, the
above-listed items shall be submitted to the
County's Building and Safety Division.
Mitigation Monitoring&Reporting Program: PWA
staff will review the submitted materials for
consistency with the NPDES Permits. Up-to-date
and site-specific SWPPP certified as local SWPPP
shall be kept on-site for periodic review by PWA—
Development and Inspection Services.
WR-3: Detention/Sedimentation Basin Armoring. VC Watershed
The proposed detention/sedimentation basin shall Protection District, Upon completion Evaluate
be armored sufficient) to withstand erosive flow effectiveness of
y U.S.Army Corps of of construction Compliance
associated with a 100-year storm event along erosion control
y g Engineers,and and prior to with design
Alamos Canyon Creek. Basin armoring shall include California operation of Phase measures and criteria.
rock rip-rap, precast concrete block,or roller Department of Fish III. compliance with
compacted concrete. and Game design criteria.
WR-4: Downstream Erosion Control Measures VC Watershed
and/or Redesign of Detention/Sedimentation Protection District, Upon completion Evaluate
Basin.The applicant shall coordinate with the effectiveness of
U.S.Army Corps of of construction Compliance
VCWPD,Advanced Planning Section, Floodplain erosion control
Engineers, and and prior to with design
Management Division, in developing erosion measures and
California operation of Phase criteria.
control features within Alamos Canyon Creek, Department of Fish III. compliance with
downstream of the proposed and Game design criteria.
detention/sedimentation basin in the northwest
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portion of Phase III, at the confluence of Alamos
Canyon Creek and the tributary creek to the
northeast,to address increased stormwater runoff
flow velocities adjacent to the proposed basin.
Alternatively,the detention/sedimentation basin
shall be redesigned such that it does not encroach
on the designated floodplain.
Biological Resources
BIO-1: Pre-construction botanical surveys shall be
conducted by a qualified, USFWS and CDFG-
approved biologist for the Braunton's milk vetch,
San Fernando Valley spineflower, Lyon's
pentachaeta, and other listed species during the
appropriate flowering period prior to start of
vegetation clearing and grading activities within
suitable habitat for these species. The applicant
shall notify USFWS for species listed under the If species are
federal Endangered Species Act(ESA) and CDFG for Applicant to observed,
species listed under the California Endangered Ventura County Prior to contract for surveys appropriate
Species Act (CESA) within 24 hours of locating any Planning construction as specified in notifications
and mitigation
individuals of listed species. In the event of positive mitigation measure
survey results, the project applicant will consult shall
with the USFWS for species listed under the ESA to implemented.
determine whether formal Section 7 consultation is
required and CDFG to obtain an incidental take
permit for species listed under the CESA.
Compensatory mitigation for the loss of any listed
plant species shall be at least on a 1:1 ratio as
described in BIO-10.
BIO-2: Prior to removal of coastal scrub habitat or Applicant to If species are
habitat designated as critical habitat by the USFWS Ventura County As specified in contract for surveys observed,
for coastal California gnatcatcher (CAGN), a Planning mitigation measure as specified in appropriate
qualified, USFWS-approved biologist shall conduct mitigation measure notifications
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protocol surveys for CAGN and provide the results to and mitigation
the County of Ventura, USFWS, and CDFG. The shall be
applicant shall notify USFWS at least 7 days prior to implemented.
initiation of surveys and within 24 hours of locating
any CAGN individuals. In the event of positive survey
results, the project applicant will consult with the
USFWS to determine whether formal Section 7
consultation is required or whether a Section 10
permit must be obtained. In addition, should this
species be found on-site, a qualified, USFWS-
approved biologist shall do the following:
a. Perform additional surveys once a week during
project construction during the breeding season
of CAGN. These additional surveys may be
suspended as approved by the USFWS. The
applicant shall notify the USFWS at least 7 days
prior to the initiation of surveys, and within 24
hours of locating any CAGN individuals.
b. Postpone work if a CAGN nest is found within
500 feet of project construction activities. A
qualified, USFWS-approved biologist shall
coordinate with USFWS to devise an optimal
strategy of postponing work only in areas where
continued construction activities may pose an
adverse impact to the CAGN, thereby allowing
work to continue beyond the appropriate buffer
determined for the documented CAGN nests.
Removal of designated critical habitat for the coastal
California gnatcatcher within the project site shall be
compensated through preservation of existing intact
suitable habitat or improvement and preservation of
disturbed habitat either on-or off-site and approved
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by USFWS and the County. Compensation shall be at
a minimum of a 1:1 ratio for critical habitat lost due
to construction of the project.Off-site compensation
shall be conducted within the critical habitat Unit 13
(Unit 13: Western Los Angeles and Ventura
Counties)as designated by the USFWS. Preservation
of critical habitat shall be ensured through
recordation of a biological restrictive covenant with
the County of Ventura.
1310-3:Removal of vegetation,grading,and/or
other land disturbance activities shall be conducted
outside the bird breeding and nesting season
(February 1 through August 31) in order to avoid
destruction of bird nests or eggs.
If land disturbance activities cannot be completed
outside the February 1 through August 31 breeding
season, a breeding and nesting bird survey shall be Applicant to
conducted by a qualified biologist with a CDFG contract for surveys If species are
Scientific Collecting Permit within 7 days prior to as specified in observed,
the land disturbance activity. The nesting bird mitigation measure. appropriate
survey hall cover the construction footprint and a Ventura County Prior to
Y P County to verify notifications
buffer of 500 feet from the construction footprint. Planning construction
implementation of and mitigation
If active nests are found, land disturbance activities appropriate shall be
within 300 feet of the nest(500 feet for raptors) measures identified implemented.
shall be postponed or halted until the nest is in BIO-3.
vacated and juveniles have fledged and there is no
evidence of a second attempt at nesting,as
determined by the biologist. If the construction
area is larger than the buffered nesting bird area(s),
then land disturbance activities can commence
outside the restricted area(s). If land disturbance
activities are delayed after the survey has been
conducted,then an additional nesting bird survey
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must be conducted such that no more than 7 days
have elapsed between the last survey and the
commencement of land disturbance activities.
Prior to the issuance of a zoning clearance for
development,the applicant shall provide a signed
contract with one of the Planning Division's
approved biological consultants that guarantees
that a nesting bird survey will be conducted 7 days
prior to any land disturbing activities.
BIO-4: The project applicant shall prepare and
implement a Wetlands Mitigation Plan acceptable
to the County of Ventura prior to initiation of
vegetation clearing and grading activity within 100
feet of the known seeps.Appropriate mitigation
includes enhancing, expanding, or restoring existing
wetlands,or creating/establishment of new
wetlands in the proposed project vicinity.The Applicant to
Wetlands Mitigation Plan shall include the contract for surveys
following components at a minimum: Ventura County as specified in Compliance
1. A minimum mitigation ratio of 3:1 for acres of mitigation measure. with
wetlands lost versus acres mitigated as a result of Planning and Prior to grading in Count and DFG to g g g' y appropriate
the Plan. California vicinity of seeps. verify measures
2. Locations of mitigation on suitable portions of Department of Fish
( � g p implementation of identified in
the project site or other property that can be and Game
protected in perpetuity from future appropriate 1310-4.
development. measures identified
3. Timing which shall be initiated prior to in BIO-4.
acceptance of waste within the proposed
expansion area.
4. Detailed information on the vegetation, quality,
soils,and hydrology of the mitigation site prior to
implementation
S. The mitigation shall have a goal of no net loss of
wetlands.
6. Methods for restoration creation or
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enhancement(as applicable).
7. Baseline information (i.e.,a description of the
ecological characteristics of the proposed
mitigation site)shall be obtained as a basis for
measuring mitigation performance. Baseline
information may include:descriptions of historic
and existing plant communities, historic and
existing hydrology,soil conditions,a map
showing the locations of the impact and
mitigation site(s) or the geographic coordinates
for those site(s), and other characteristics
appropriate to the type of resource proposed as
compensation.
8. Monitoring, maintenance,and reporting for a
minimum monitoring period,which shall not be
less than 5 years.
9. Performance criteria that are based on
replacement of the characteristics and functions
of the wetlands being impacted must be
approved by the County and any other
appropriate regulatory agency. Performance
criteria shall at a minimum include the following
parameters: percent vegetative cover, plant
diversity, percent non-native plant species,target
functions and values, and target hydrological
regime.
10. The Plan shall include an adaptive
management strategy to address unforeseen
changes in site conditions or other components
of the mitigation project, including the party or
parties responsible for implementing adaptive
management measures.
Procedures to ensure protection of the mitigation
sites in perpetuity, either through the recordation
of a conservation easement,a biological restrictive
covenant, or other agreement approved by the
County and other relevant regulatory agencies.
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810-5:The permittee shall implement vector
control methods to deter refuse scavenging species Continued
such as gulls and crows from the waste disposal compliance
area. In the vicinity of Alamos Canyon,vector Ventura County During periodic Periodically observe with vector
control methods (such as noisemakers and propane Planning County inspections vector control control
cannons, distress call, and use of falcons and dogs) efforts. requirements
that could result in the avoidance of wildlife use of and minimal
Alamos Canyon as a corridor shall be avoided. vector issues.
1310-6: To ensure the continued availability of the
Alamos Canyon Wildlife Corridor("the Corridor")
for the benefit of native plants and wildlife,the
permittee shall enhance and manage habitat in and
adjacent to the Alamos Canyon wildlife corridor,
including the riparian zone and adjacent upland
habitats. The area to be preserved shall include the
Alamos Canyon Corridor within the following
boundaries:the SR-118 freeway on the south end, Prior to expansion Recordation of bon
the latitude of the northernmost onion of the fide dedication
p Ventura County that would Proof of
buffer area associated with the proposed landfill Planning encroach document/deed of dedication.
expansion on the north end,the project CUP on Alamos Canyon. trust or restrictive
boundary on the east side, and the rim of Alamos covenant.
Canyon on the west side. In order to ensure that
the Corridor enhancements remain in perpetuity,a
biological restrictive covenant shall be recorded
with the County of Ventura that encompasses the
Corridor area to be enhanced/preserved.
Enhancement shall be as described in Mitigation
Measure BIO-7.
1310-7:As part of a Habitat Restoration and Prior to expansion
Management Plan,the permittee shall design and that would
Ventura County Review and approve Compliance
implement a plan acceptable to the County of encroach
Ventura for habitat enhancements along the Planning upon Alamos plan. with plan.
channel in Alamos Canyon in order to improve Canyon.
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overstory cover for migrating animals and to
increase potential habitat for species that rely on
riparian corridors.The plan must provide for
planting and maintenance of sycamore and coast
live oak trees in and adjacent to Alamos Canyon in
areas void of trees. By focusing especially on areas
of the canyon near the landfill and areas having
direct line of sight to the landfill,the plan will
create a pattern of more continuous tree cover.A
minimum of 30 sycamores and 30 coast live oaks
shall be established within the area identified
above(see also Figure 3.4-3). In addition, planting
of vegetation or other work within or adjacent to
the channel above falls under the regulatory and
permitting authority of the Ventura County
Watershed Protection District per Ordinance FC-18
as amended. As such, habitat enhancement plans
for Alamos Canyon shall be reviewed and approved
by the Watershed Protection District.
8I0-8:As part of a Habitat Restoration and
Management Plan,the permittee shall design a
plan for and implement at least 2 of the following
improvements or enhancements to the Alamos
Canyon crossings(i.e.,Alamos Canyon East and
West culverts and Alamos Canyon Road Ventura County Prior to expansion Review and approve
undercrossing)as shown on Figure 3.4-3: Planning and that would plan. Verification of
California encroach improved
Alamos Canyon West Corridor: Department of Fish upon Alamos Review monitoring migratory
• Enhance and maintain riparian vegetation near and Game Canyon. reports. activity.
culverts.
Alamos Canyon Road Undercrossing:
• Increase the vegetative cover along Alamos
Canyon Road.
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• Replace the paved road with a decomposed
granite surface if it is still used for
maintenance,otherwise remove the road
surface and base entirely and replace it with
native vegetation.
• Remove the barbed wire fencing along the
road.
Alamos Canyon East Corridor:
• Increase vegetation cover along the drainage.
Measures Applicable to the three Alamos Canyon
Corridors:
• Installation of fencing by the project applicant
to funnel wildlife into the Alamos Canyon
undercrossings,
The permittee shall coordinate with Caltrans to
ensure that the improvements selected will not
conflict with any planned Caltrans projects. Prior
to initiation of project construction activities,the
permittee shall provide the plan for these
improvements to the County and Caltrans for
approval.
Planting of vegetation or other work within or
adjacent to Los Alamos Canyon channel falls under
the regulatory and permitting authority of the
Ventura County Watershed Protection District per
Ordinance FC-18 as amended. As such, habitat
enhancement plans for Alamos Canyon shall be
reviewed and approved by the Watershed
Protection District prior to implementation.
13I0-9:The conditions applicable to minimizing off Periodically observe Continued
Ventura County During periodic
site noise and vibration, nighttime lighting,control noise and night compliance
Planning County inspections
of wind-blown refuse, and control of nuisance lighting control with noise and
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species of birds(crows, ravens,gulls)and mammals efforts. night lighting,
(non-native rodents) in CUP-3142-7 shall be applied dust
to the expansion project including: suppression
• Night lighting for the proposed project shall be measures, and
litter control
in accordance with CUP-3142-7 Condition 34
limiting hours of operation to 6 AM to 8 PM and requirements.
CUP-3142-7 Condition 105 requiring shielding
to ensure that when night lighting is used,
natural areas are not lighted.These measures
shall be updated as necessary and applied to
the proposed project.
• A revised dust suppression plan shall be
implemented as required under CUP-3142-7
Condition 44.
• Litter shall be controlled through the use of
portable wind fences to confine waste to the
area of the working face and to ensure that
adjacent habitats are maintained free of litter.
Existing litter control measures(CUP-3142-7
Condition 45)shall be applied to the proposed
project.
BIO-10: As part of a Habitat Restoration and
Management Plan,the permittee shall develop and
implement a Sensitive Plant Species Restoration
Plan acceptable to the Ventura County Planning
Division for Plummer's and Catalina mariposa lily,
and any federal or state listed plant species found
during pre-construction surveys prior to onset of Prior to expansion
grading in the expansion area. The goal of the Plan Ventura County that would encroach Review and approve Compliance
shall be the replacement of these sensitive and/or Planning plan. with plan.
listed plants on a 1:1 ratio.The Plan shall include: upon mariposa lily
habitat.
• An up to date review of research on the
reproductive success of each species and the
success of previous attempts at salvage and
transplanting;
• Methodology and timing for salvaging seed and
plants(corms)from areas to be impacted and
procedures for transplanting and/or
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propagation;
• Identification of suitable(approved)locations
for transplants and the means to protect the
locations from future development;
• Maintenance, monitoring,and replacement
program to document the success of the
transplantation; and,
• The number of individuals to be
transplanted/propagated in order to meet the
goal of the 1:1 replacement ratio.
BIO-11: Pre-construction spring botanical surveys
shall be conducted by a qualified,County-approved
biologist for listed and locally important plant
species with the potential to occur within the
project site prior to the start of vegetation clearing
and grading.To the extent feasible,grading limits
shall be adjusted to exclude documented
occurrences of listed and locally important plant Completion of
species, including Plummer's mariposa lily and required
Catalina mariposa lily. Because of the botanical
concentration of occurrences of Plummer's surveys as
mariposa lily along the northwestern grading limits Prior to expansion Review and a required and
p y g g g that would approve observed
of the property(Figure 3.4-4), relatively slight Ventura County surveys prior to
adjustments in the grading limit could enable large Planning encroach issuance of grading avoidance of
numbers of individuals(up to 520 individuals in 13 upon mariposa lily permits. areas
occurrences)of this species to be avoided.The habitat. containing
occurrences of Plummer's and Catalina mariposa sensitive
lily and any other listed or locally important plant species
species located within the buffer zone shall be identified
protected by identification of the area on a map therein.
and by placing construction fencing along the limits
of grading where appropriate to prevent
inadvertent loss or damage as a result of
construction or other project-related or property
management activities. During years of unfavorable
conditions for mariposa lilies,the distributional
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data from 2005 shall be used to adjust grading
limits, because the numbers and local distribution
of mariposa lilies may vary considerably from year
to year in response to environmental conditions,
and conditions in 2005 were relatively favorable for
identifying the distribution of the mariposa lilies.
BIO-12: A preconstruction survey shall be
conducted by a qualified,County-approved
biologist for locally important wildlife species no
sooner than 14 days prior to the start of vegetation
removal and grading. Prior to vegetation removal,
the biologist shall ensure that potential natal
badger dens are avoided and that less mobile
species, such as coast horned lizard,will be
relocated to suitable habitat outside of the
construction area.A qualified, County-approved Completion of
biologist shall be on-site to monitor vegetation preconstruction
removal and topsoil salvaging and stockpiling to surveys as
Ventura County
minimize injury or mortality to locally important Planning and Review and approve required and
wildlife species. California As specified in 1310- surveys prior to observed
CDFG shall be contacted immediately if burrowing Department of Fish 12. issuance of grading implementation
owls or burrowing owl sign are observed. No and Game permits. of necessary
disturbance shall occur within 50 meters(approx. avoidance or
160 feet)of occupied burrows during the non- relocation
breeding season of September 1 through January measures.
31. No disturbance shall occur within 75 meters
(approx. 250 feet) of occupied burrows during the
nesting season, February 1 through August 31,
unless CDFG verifies that the birds have not begun
egg-laying and incubation or that the juveniles from
those burrows are foraging independently and
capable of independent survival at an earlier date.
When destruction of occupied burrows is
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unavoidable,the owls shall be passively relocated
to alternate burrows,only during the non-breeding
season. Occupied burrows during the breeding
season shall be avoided. Passive relocation will
involve enhancing existing unoccupied burrows or
creating artificial burrows in a ratio of 1:1 in
adjacent, protected, suitable habitat that is
contiguous with the foraging habitat of the affected
owls and at least 50 meters from the impacted
area. The relocated owls shall be monitored for 90
days following relocation,and a report on the
status of the relocated owls shall be submitted to
the County and CDFG. If the monitoring results
show the relocation effort to be unsuccessful,the
County and CDFG will require contingency
measures, which may include preservation of
existing off-site burrowing owl habitat, in
accordance with the off-site mitigation
recommendations of the California Burrowing Owl
Consortium.
BIO-13: As part of a Habitat Restoration and
Management Plan,the applicant shall develop a
plan to revegetate all lands temporarily disturbed
by grading as well as intermediate,permanent Meeting
slopes and closed portions of the landfill as Ventura County Prior to expansion Review and approve performance
indicated below. Revegetation efforts shall Planning and that would plan. criteria defined
emphasize native plant species and provision of California encroach in BIO-13 and
quality habitat for locally important wildlife species Department of Fish upon sensitive Review monitoring accepted by
and other native wildlife.The plan shall be subject and Game species. reports. Ventura
to review and approval by Ventura County prior to
County.
the initiation of ground disturbance.The plan shall
include the following:
• Provisions for salvaging and stockpiling topsoil
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and seed bank for use in revegetation.
• Procedures to stabilize soil and revegetate areas
disturbed by site preparation or other grading
outside the overall waste boundary with native
species from seed or cuttings collected in the
immediate project area creating habitat
conditions compatible with adjoining habitat not
disturbed by the project.
• Specifications that native plants and seed stock
used in revegetation shall be locally collected or
propagated from locally collected seed or
cuttings (from the Simi Valley area) to maintain
the genetic integrity of the local flora. An
attempt shall be made to restore some of the
existing native plant diversity by specifically
including some of the less common native
species currently found on the site.
• Specifics for seed mix, seed application, seeding
methods, timing of monitoring and reporting
and performance criteria.
• Provision that non-native, non-invasive species
may be used for short-term erosion control
(such as barley on temporarily denuded slopes).
Where invasive species have persisted after
having been used in the past, they shall be
removed.
• Procedures for maintenance and reduction of
non-native invasive plant species on the
proposed SVLRC landfill site and adjacent
property owned by the applicant. The invasive
non-native plants/escaped non-natives listed in
the following sources shall be targeted as
undesirable plants:
Cal-IPC Inventory (http://www.cal-
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ipc.org/ip/invento ry/index.php); CDFA list of
Noxious Weeds (http://www.cdfa.ca.gov/
PHPPS/IPC/weedinfo/ winfo_list-pestrating.htm);
and the Ventura County Landscape Design
Criteria (Ventura County RMA 1992). The goal is
to reduce their presence at the landfill site and
achieve complete eradication, where feasible,
and to minimize the likelihood that non-native
invasive species would escape into adjacent
areas.
810-14:The loss of habitat for locally important
wildlife species, including sage scrub,chamise
chaparral,grassland, and oak woodland as
documented in Table 3.4-4 of the EIR,shall be
mitigated through preservation of existing intact
plant communities or restoration and preservation
of disturbed plant communities at a 1:1 ratio in the
project vicinity.This measure can be coordinated
with Mitigation Measure 1310-6. If disturbed plant Meeting
communities are selected to meet this measure,a Ventura County Prior to expansion Review and approve performance
criteria
site-specific habitat restoration and enhancement Planning and that would plan.
plan including details of restoration measures California encroach developed by
appropriate to the site and performance criteria Department of Fish upon sensitive Review monitoring the applicant
shall be developed by the applicant and approved and Game species. reports. and approved
by the County of Ventura prior to initiation of by Ventura
ground disturbance. Restoration measures could County.
include control of invasive non-native species,
increasing the prevalence of wildlife species by
planting or use of other management techniques,
revegetation of barren surfaces resulting from
previous human activities or control of erosion
related to human activities(e.g., originating from
concentrated runoff from unpaved roads).
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Preserved and restored habitat shall be of similar
or higher quality and integrity in comparison to the
habitat removed and shall be dedicated and
managed as vegetation and wildlife habitat in
perpetuity through a legal instrument such as a
conservation easement. In addition,a biological
restrictive covenant shall be recorded with the
County of Ventura to protect the habitat in
perpetuity.
Agricultural Resources
AG-1: Fugitive Dust. Project construction and
operations would comply with VCAPCD Rule 55,
Fugitive Dust, which would reduce project PM10
emissions from uncontrolled levels by 50 to 75
percent,depending on the source type. Mitigation
Measures AQ-2,Additional Fugitive Dust Controls See Mitigation Measures AQ-2 and AQ-5.
for Construction and AQ-4,Additional Fugitive Dust
Controls for Operations(presented in Section
3.2.2.3 of this EIR),would further reduce fugitive
dust emissions from these sources to 90 percent
from uncontrolled levels.
Visual Resources/Glare
VIS-1:All landscaping plans shall follow the Ventura
County Guide to Landscape Plans guidelines.This All landscaping
shall occur prior to the issuance of the Conditional Ventura County Prior to zoning Review and approve plans shall
Use Permit modification.The Plans specify the Planning Division clearance for plans
comply with
minimum landscape and irrigation coverage,
construction Ventura County
minimum plant survival rates, and suggested Guidelines
drought tolerant species.
VIS-2: Prior to issuance of a Zoning Clearance for the Prior to zoning All landscaping
construction of any facilities that include outdoor Ventura County clearance for Review and approve plans shall
lighting,the permittee shall develop a Lighting Plan Planning Division plans comply with
that meets the following requirements: construction Ventura County
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Initial Date Comments
Guidelines
• There shall be no light source in excess of 150
watts that directly illuminates adjacent
properties;
• Outdoor lighting shall not result in the indirect
illumination of adjacent properties in excess of
0.5 foot candles;
• For pedestrian lighting systems,there shall be no
point of overlap between light patterns greater
than seven feet; and
• There shall be no lighting within the project site
that is greater than seven foot-candles.
The locations of all exterior lighting fixtures,an
arrow showing the direction of light being cast by
each fixture,and the height of the fixtures shall be
depicted on the Lighting Plan to be reviewed by the
Resource Management Agency, Planning Division,
prior to issuance of a Zoning Clearance.All lighting
shall be shielded,shall be directed downwards,and
shall avoid being directed towards facilities with
reflective services that could produce glare off-site.
The Lighting Plan shall be consistent with any
mitigation measures that are developed to avoid or
reduce impacts to wildlife movement,and shall not
result in the illumination of sensitive habitat.
VIS-3: Prior to the issuance of a Use Inauguration
Zoning Clearance for grading activities within the
proposed landfill expansion area,the permittee
shall submit a lighting plan to the Resource
Management Agency, Planning Division for All landscaping
temporary lighting that will be used to facilitate Ventura County Prior to zoning Review and approve Plans shall
start-up/shutdown operations.The lighting plan clearance for comply with
shall comply with the following requirements: Planning Division plans
P Y g Q construction Ventura County
• There shall be no light source in excess of 150 Guidelines
watts that directly illuminates adjacent
properties;
• Outdoor lighting shall not result in the indirect
illumination of adjacent properties in excess of
Page 28 of 31
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Initial Date Comments
0.5 foot candles; and
• There shall be no lighting within the project site
that is greater than seven foot-candles.
All lighting shall be shielded,shall be directed
downwards, and shall avoid being directed towards
equipment with reflective services that could
produce glare off-site.The lighting plan shall
specify the number,type, intensity,and duration of
use of all lighting that will be used for start-
up/shutdown operations.
Geological and Seismic Hazards,Mineral Resources,and Paleontological Resources
Applicant will hire
GEO-1: Paleontological Mitigation Program.An an approved
updated/expanded Paleontological Mitigation Ventura County Prior to issuance of consultant to Compliance
Program shall be submitted by Waste Planning Division prepare the Ian.
Management, Inc.to the County Planning Division g zoning clearance p p P with plan
for review and approval. Monitoring during
construction
Cultural Resources
Avoidance of
CUL-1:Construction and operation of the proposed Wharton
project shall avoid Wharton Ranch. If avoidance is Prior to Ranch. If
not possible, Phase II testing and evaluation of County to hire
p g construction in avoidance is
potential archaeological deposits within the Cultural Resources not feasible,
Wharton Ranch areas shall be conducted prior to proximity to
P Ventura County Consultant to Count
any surface disturbance in the vicinity of the ranch. Planning ivision Wharton Ranch. Y
g
Provisions must also be made for consultation with Monitors to be Monitor excavation approval of
the County for approval of reporting of the findings present during any activity at expense reporting for
of the Phase II testing,and,if need be,follow-on surface grading. of permittee Phase II testing
Phase III data recovery. Provision must also be made and any follow-
for curation of artifacts collected. on Phase III
data recovery.
CUL-2: Due to the poor visibility over much of the Prior to cell County to hire Potentially
survey area and the lack of final construction plans Ventura County construction. Cultural Resources significant
such as depth of excavation and extent of Plannin g
maintenance activities, a full time archeological Monitors to be Consultant to archaeological
monitor shall be on-site during all brush clearance present during any Monitor excavation materials are
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and disturbance of the first one foot of soil in areas surface grading. activity at expense either: not
that have not previously been disturbed. of permittee encountered;
In the event that potentially significant avoided;or
archaeological materials are encountered during
project-related ground disturbance,all work must appropriate
be halted within the vicinity of the discovery until mitigation
an assessment of the significance by a qualified measures are
archaeologist is completed. If significant resources implemented.
are determined to be present,sufficient time must
be allotted for implementation of avoidance
measures or appropriate mitigations measures
such as Phase II testing and/or Phase III Data
Recovery of significant archaeological deposits.
Treatment plans must be developed in consultation
with the County and local Native Americans.
Provisions must also be made for reporting of the
findings of any testing/data recovery effort and
curation of any significant artifact collections made.
CUL-3: Health and Safety Code 7050.5,CEOA
15064.5(e)and Public Resources Code 5097.98
mandate the process to be followed in the unlikely
event of an unanticipated discovery of any human
remains in a location other than a dedicated
cemetery. If human remains are found at the Record,
proposed project site,the following measures shall County to hire
be implemented per the California Office of Historic Cultural Resources recover, if
Preservation Technical Assistance Bulletin 10(46) Ventura County Upon discovery of Consultant to feasible, or
such that: possible human Monitor excavation Preserve in
Planning
• Ground disturbing activities in the vicinity are remains place in
immediately halted or redirected, activity at expense
• A temporary exclusion zone is established, of permittee accordance
with CUL-3
• The coroner is notified within two working
days,
If Native American remains are suspected,
appropriate notifications shall be made and a plan
implemented regarding the treatment of human
remains.
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Hazards
HAZ-1:Compliance with DOGGR Standards.
Grading associated with landfill expansion shall Applicant-hired and
include the following requirement: County-approved Compliance
• with DOGGR
All on-site oil wells shall be abandoned geologist to verify
pursuant to current abandonment/re- DOGGR Prior to cell that abandonment regulations. Re-
abandonment requirements,and all grading construction d abandonment
occurred pursuant
shall be completed, in accordance with DOGGR of wells that do
Construction Project Site Review and Well to DOGGR not comply.
Abandonment Procedures,as well as site- regulations.
specific instructions from the DOGGR.
HAZ-2: Locate and Mark Abandoned Wells.On-site Ventura County Applicant-hired and Verify all
abandoned wells shall be accurately located Planning and Prior to cell County-approved identified well
through surveying and marked with a post visible DOGGR construction geologist to identify locations have
to equipment operators. well locations. been marked.
HAZ-3:Grading/Excavation Monitor.A qualified
environmental engineer or environmental geologist
shall be present during grading/excavations in the
vicinity of on-site oil wells,to direct proper
excavation and characterization of potentially
contaminated materials.The qualified
environmental engineer shall observe excavations Applicant-hired and
for potential signs of contaminated soil,such as County-approved
discoloration, unusual odors,and/or positive Avoid wells.
readings with a photo-ionization detector PID or Ventura County On-going during environmental
g P ( ) Repair any
organic vapor analyzer(OVA).The environmental Planning excavation engineer or
damaged wells.
engineer or environmental geologist shall be 40- geologist to observe
hour OSHA trained with respect to handling of grading operations.
hazardous substances.
Contaminated soil shall be excavated and disposed
off-site at a facility permitted for disposal of such
waste.Alternatively,the contaminated soil may be
remediated in-situ (i.e., in-place)by bioremediation
or other methods acceptable to Ventura County.
Page 31 of 31
N
E R RATA - 2
Subsequent to printing the Simi Valley Landfill and Recycling Center Expansion Project Final EIR,
several additional corrections to text have been identified. Please replace text as follows to reflect the
correct wording.
• Make the following correction to Text on lines 12 through 31 on page 3.1-22:
Parks and Recreation
Policy 4.10.2-1: The County shall maintain and enforce the local parkland dedication requirements
(Quimby Ordinance),to acquire and develop neighborhood and community recreation facilities. Parkland
dedication shall be based on a standard of five acres of local parkland per thousand population,including
neighborhood and community parks.
Comment: GInconsistent. Altheeeg t-di,-The Quimby Ordinance does not apply to a landfill project
and the county lacks the authority to compel the applicant would pay in lieu fees for parks and
trails development as deseribed in a tigaiien A measures REG 1 thrEUgh REG 3 in order-effief
Policy 4.10.2-3: Developers shall be encouraged to make unused open space available for recreation.
Comment:Elnconsistent.
f1w-t-The county lacks the authority to compel the applicant to dedicate public easements for the
planned Alamos Canyon Trail. S.. dat:'•• "&iga'i^n k "-'r' ' ° that he applieant
reereatien, thereby ensuring eensisieney with !his pekey.
Policy 4.10.2-4: The County shall require reservation of land for public purchase,pursuant to the County
Subdivision Ordinance,where requested by a recreation agency.
Comment: 4GInconsistent. As dice ° ed in abe,•^ and in c^^.:^. 3.14.22.3.4; A,f ig ion a,/, .....a5
REG 1 and REG The County lacks the authority to ensure that land would be reserved as
requested by the RSRP ,
Simi Valley Landfill and Recycling Center Expansion Project-E R R A T A-2 1
Final EIR-December 2010
CC ATTACHMENT 7 122
Errata-2
• Make the following corrections to Table 3.2-17 on pages 3.2-43 for AQ-1 and 3.2-44 for AQ-3:
Table 3.2-17. Mitigation for Air Quality Impacts
Mitigation Measure As written Mitigation Measure As corrected
AQ-1:The construction contractor shall implement the AQ-1:The constriction contractor shall implement the
following measures to mitigate ozone precursor emissions from following measures to mitigate ozone precursor emissions from
on-site off-road construction equipment: on-site off-road construction equipment:
I. All construction equipment shall meet the EPA Tier 3 1. All construction equipment shall meet the EPA Tier 3
nonroad equivalent standards.The construction contractor nonroad equivalent standards.The construction contractor
shall be exempt from this requirement if he provides proof shall be exempt from this requirement if he provides proof
that a given piece of equipment is unavailable within that a given piece of equipment is unavailable within
California that meets Tier 3 standards. California that meets Tier 3 standards.
2. Minimize equipment idling time. 2. Minimize equipment idling time.
3. Maintain equipment engines in good condition and in 3. Maintain equipment engines in good condition and in
proper tune as per manufacturers'specifications. proper tune as per manufacturers'specifications.
4. Lengthen the construction period during smog season(May 4. Lengthen the construction period during smog season(May
through October),to minimize the number of vehicles and through October),to minimize the number of vehicles and
equipment operating at the same time. equipment operating at the same time.
5. Encourage the use of alternatively fueled construction 5. Encourage the use of alternatively fueled construction
equipment,such as CNG,LNG,or electricity. equipment,such as CNG,LNG,or electricity.
6. All nonroad diesel-powered equipment used for facility
construction shall meet U.S.Environmental Protection
Agency Tier 4 emission standards as applicable to their
wer ratin .
AQ-3:To reduce peak daily emissions of ROC and NOx from AQ-3:To reduce peak daily emissions of ROC and NOx from
project operations,the landfill operator shall implement the project operations,the landfill operator shall implement the
following measures to mitigate ozone precursor emissions from following measures to mitigate ozone precursor emissions from
on-site off-road mobile equipment: on-site off-road mobile equipment:
1. Beginning in 2009,convert all equipment to engines with 1. Beginning in 2009,convert all equipment to engines with
EPA nonroad Tier 3 standards.The landfill operator shall EPA nonroad Tier 3 standards.The landfill operator shall
be exempt from this requirement if he provides proof that a be exempt from this requirement if he provides proof that a
given piece of equipment is unavailable within California given piece of equipment is unavailable within California
that meets Tier 3 standards. that meets Tier 3 standards.
2. Minimize equipment idling time. 2. Minimize equipment idling time.
3. Maintain equipment engines in good condition and in 3. Maintain equipment engines in good condition and in
proper tune as per manufacturers'specifications. proper tune as per manufacturers'specifications.
4. Encourage the use of alternatively fueled equipment,such 4. Encourage the use of alternatively fueled equipment,such
as CNG,LNG,or electricity. as CNG,LNG,or electricity.
5. All nonroad diesel-powered equipment used for facility
operation shall meet U.S.Environmental Protection Agency
Tier 4 emission standards as applicable to their power
rating.
Please also note that the text of AQ-1 on page 3.2-24 and of AQ-3 on page 3.2-29 should be also
corrected as indicated above.In addition,comparable corrections should be made to AQ-1 in Table
ESR.7-1 on page ES-78 and to AQ-3 in Table ESR.7-1 on page ES-79.
2 Simi Valley Landfill and Recycling Center Expansion Project—E R R A T A—2
Final EIR-December 2010
123
Errata-2
• Correct Mitigation Measures WR-1 and WR-2 on page 3.3-28 according to direction received
from the Watershed Protection District as follows:
Mitigation for Water Quality Impacts
Mitigation Measure As written Mitigation Measure As corrected
WR-1:Toe Barrier Liquid Analysis by VCWPD. Toe barrier WR-1:Compliance with Surface Quality Urban Impact
liquids sampling results shall be reviewed by the Ventura Mitigation Plan(SQUIMP):
County Watershed Protection District,Water&Environmental Intent:In order to mitigate for the impacts to the surface water
Resources Division,Water Quality Section,for conformance and stormwater resources,the proposed project shall meet all
with Basin Plan surface water quality objectives,including project design requirements of the provisions as contained in
associated TMDLs,prior to use in dust control.In the event Part 4.C.,"Programs for Planning and Land Development"of
that sampling results are in excess of these water quality the July 2000 Regional Water Quality Control Board(Order
objectives,use of toe barrier liquids for dust control shall cease No.00-018)Ventura Countywide Municipal Stormwater
pending enhanced remedial actions and additional sampling National Pollutant Discharge Elimination System(NPDES)
demonstrating that the toe barrier liquids are within acceptable Permit CAS004002.
limits.
Description of Requirement:The proposed development
meets at least one of the Municipal NPDES Permit
applicability criteria for new development or redevelopment
projects(Part 4.C.)and therefore the applicant shall submit a
complete Surface Quality Urban Impact Mitigation Plan
(SQUMT)in accordance with provisions of the 2000
Municipal NPDES Permit and the 2002 Ventura Countywide
Stormwater Program"Technical Guidance Manual for
Stormwater Quality Control Measures"(TGM)
Documentation:The applicant shall submit the following
items to the Watershed Protection District-Surface Water
Quality Section for review and approval:
a) A complete SQUIMP Worksheet form available at
(httv://ventura.org(rma/plannit>g(Pemuts/
discretionary.html)
b) A site plan prepared and stamped by a California
licensed civil engineer or land surveyor that
accurately delineates the location of the proposed
development,existing and proposed impervious
surfaces,storm drain system elements,general
drainage pattern,and proposed site-specific
SQUMW Best Management Practices(BMPs)
strategies.
c) Drainage Study or Hydrology Report prepared and
stamped by a Califomia licensed civil engineer
including applicable calculations of stormwater
quality design flow and volume to meet 2002 TGM
requirements and standards.
d) A written Operations and Maintenance Manual
detailing how the proposed and installed BMPs
devices will be maintained in accordance with the
Appendix D of the 2002 TGM.
e) The applicant shall provide the Watershed Protection
District-Surface Water Quality Section with a copy
of recorded County's"Covenant for Maintenance of
Stormwater Treatment Device"(form is available at
hiip://ventura.org/rma/plannin ermits/
discretionarv.htm)),which requires all property
owners and their successors in interest to assume all
BMPs duties and responsibilities includin ,but not
Simi Valley Landfill and Recycling Center Expansion Project—E R R A T A—2 3
Final EIR—December 2010
124
Errata-2
Mitigation for Water Quality Impacts
Miti anon Measure As written Mitigation Measure As corrected
limited to,maintenance of all BMPs and all
equipment which is required for operation of BMPs.
Contained within the Covenant and Deed Restriction
must be a description of the BMPs that are being
provided as part of the project,a description of the
maintenance requirements and how the necessary
maintenance shall be performed.
Tinting:
• The above-listed items(a to c)shall be submitted to
the Watershed Protection District-Surface Water
Quality Section for review and approval prior to
issuance of Zoning Clearance for Construction.
• The above-listed items(d and e)shall be submitted
to the Watershed Protection District-Surface Water
Quality Section Prior to Zoning Clearance for Use
Inauguration.
Mitigation Monitoring&Reporting Program:Watershed
Protection District-Surface Water Quality Section staff will
review the submitted materials for consistency with the
Municipal NPDES Permit and 2002 TGM.
WR-2:Stormwater Runoff Analysis by VCWPD. Stormwater WR-2a:General Industrial Stormwater Permit No.CAS000001
runoff sampling results shall be reviewed by the Ventura Requirements
County Watershed Protection District,Water&Environmental Intent In order to mitigate for the impacts to the stormwater
Resources Division,Water Quality Section,for conformance resources,the applicable project shall maintain compliance
with Basin Plan surface water quality objectives,including with all water quality provisions in accordance with NPDES
associated TMDLs. In the event that sampling results are in General Industrial Stormwater Permit No.CAS000001,Waste
excess of these water quality objectives,on-site Best Discharge Requirements for Discharges of Stormwater Runoff
Management Practices(BMPs)shall be adjusted and enhanced Associates with Industrial Activities.
until additional sampling demonstrates that stormwater runoff
is within acceptable limits.BMPs that shall be adjusted and Description of Requirement:For the proposed project,the
enhanced to increase surface water quality shall include,but applicant shall ensure coverage and compliance with the State
not be limited to the following: Water Resources Control Board NPDES General Industrial
Stormwater Permit No.CAS000001.
• Runoff shall be directed by berms and ditches away
from the active landfill face to the on-site drainage Documentation:The applicant shall prepare and submit the
system. following items to the Watershed Protection District—Surface
Water Quality Section for review upon request:
• Runoff from within the active face, during rain
events(i.e.,not runoff associated with dust control), a) Copy of a current Notice of Intent(NOI)in
shall be detained in temporary basins,sampled,and accordance with the State Water Resources Control
analyzed prior to discharge into the on-site drainage Board requirements under the NPDES General
system, to verify that runoff complies with Basin Industrial Stormwater Permit No.CAS000001;
Plan surface water quality objectives, including b) Site-specific Stormwater Pollution Prevention Plan
associated TMDLs. (SWPPP)in accordance with the State Water
Resources Control Board requirements under the
• A sump, including a water.quality filter, shall be NPDES General Industrial Stormwater Permit No.
provided to collect surface runoff at the household CASO00001;
hazardous waste collection facility. The water c) Annual Report including sampling results in
accordance with the State Water Resources Control
quality shall be sampled and analyzed bi-monthly, u Board requirements under the NPDES General
during the rainy season(i.e., November 15 to April Industrial Stormwater Permit(NO.CAS000 General
15) to verify that runoff complies with Basin Plan Timing:
surface water quality objectives,including associated
TMDLs.
• The above listed items shall be submitted to the
4 Simi Valley Landfill and Recycling Center Expansion Project—E R R A T A—2
Final EIR—December 2010
125
Errata-2
Mitigation for Water Quality Impacts
Mitigation Measure As written Mitigation Measure As corrected
Watershed Protection District—Surface Water
Quality Section for review Prior to Zoning Clearance
for Use Inauguration or upon request.
Mitigation Monitoring&Reporting Program:Watershed
Protection District—Surface Water Quality Section staff will
review the submitted materials to verify that the facility is
currently covered under the NPDES General Industrial
Stormwater Permit No.CAS000001.
WR-2b:NPEDES Municipal Stormwater Compliance with
Construction Activities
Intenti In order to mitigate for the impacts to the stormwater
resources during construction activities,the applicable project
shall maintain compliance with all water quality provisions in
accordance with the Ventura Countywide Municipal
Stormwater National Pollutant Discharge Elimination System
(NPDES)Permit CAS004002.
Description of Requirement:The applicant shall ensure
compliance and the implementation of an effective
combination of erosion and sediment control Best
Management Practices(BMPs)as applicable in accordance
with Subpart 4.F"Development Construction Program"of the
Municipal Stormwater NPDES Permit CAS004002.
Documentation:The applicant shall prepare and submit the
following items to the County's Building and Safety Division
for review:
a) A complete worksheet for"Best Management
Practices for Construction Activities as applicable to
the proposed project.The form is available at:
b) http://portal.countyofventura.org/portal/page/portal/P
UBLIC—WORKS/engineeringservices/dis/toc
Timing:Prior to Issuance of Building Permit,the above-listed
items shall be submitted to the County's Building and Safety
Division.
Mitigation Monitoring&Reporting Program:PWA staff
will review the submitted materials for consistency with the
NPDES Permits. Up-to-date and site-specific SWPPP certified
as local SWPPP shall be kept on-site for periodic review by
PWA—Development and Inspection Services.
Please also note that the text of WR-1 on Table 3.3-1 (page 3.3-33)and of WR-2 on Table 3.3-1 (page
3.3-34)should be also convected as indicated above. In addition,comparable corrections should be made
to WR-1 and WR-2 in Table ESR.7-1 on page ES-39.
Simi Valley Landfill and Recycling Center Expansion Project—E R R A T A—2 5
Final EIR—December 2010
126
Errata-2
• Correct Table 3.11-9 on page 3.11-20 as follows:
Table 3.11-9. Landfill Existing Trip Generation(PCE)
Ant Peak Hour Awm Peak Hour
In Out Total In Out Total
Autos 30 24 54 5 13 18
Trucks 88 74 162 6 24 30
Total 118 98 216 11 37 48
6 Simi Valley Landfdl and Recycling Center Expansion Project—E R R A T A—2
Final EIR—December 2010
127
Appendix K
Waste Capacity Study
CC ATTACHMENT 8
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129
Simi Valley Landfill and Recycling Center FINAL Capacity Study Analysis
Executive Summary
Introduction
In conjunction with the EIR on the Simi Valley Landfill and Recycling Center (SVLRC) expansion,
SAIC was tasked to prepare a capacity study to assess the future landfill capacity in Ventura County as it
would be affected by the increase of permitted daily capacity at the SVLRC from 3,000 tons per day to
6,000 tons per day of waste disposal and the enlargement of waste disposal area. The proposed project
would expand the waste capacity of the SVLRC to 98.5 million tons, an increase of 63.7 million tons
above currently permitted levels. Recent receipts have been on the order of 2,500 tons per day, about 500
tons per day less than the 3,000 tons per day daily permit limit.
In addition to serving Ventura County, the landfill currently accepts waste from outside Ventura County.
Approximately 36 percent of waste accepted in the first quarter of 2008 originated outside the County, a
fraction that is considered representative of recent operations. Population growth throughout the region,
as well as the closure of other landfills in the region, will likely increase demand for available SVLRC
capacity in the future. This Capacity Study addresses the potential future outcomes that could reasonably
be expected from possible approaches to managing waste disposal in Ventura County.
Summary of Issues
There are a number of key issues that bear on estimating future landfill capacity and disposal demand.
These include the expected availability of landfill capacity to accept future disposal demand, the expected
growth in disposal needs, the distribution of sources of waste and available disposal sites, as well as
policy actions that could be taken to affect future disposal activity.
Landfill Capacity
Title 14, CCR §118755 requires county governments to adopt a Countywide Siting Element(CSE)as part
of their Countywide Integrated Waste Management Plan(CIWMP). The CSE must demonstrate that there
is a countywide minimum of 15 years of combined permitted disposal capacity through existing or
planned solid waste disposal and transformation facilities or though additional strategies. Therefore, it is
in the interest of each County to evaluate and ensure adequate capacity for the waste generated within its
borders. The Ventura County Countywide Siting Element (CSE) is one component of the County
Integrated Waste Management Report. The Siting Element was originally approved by the State in June
2001 and was most recently updated and approved by CalRecycle on August 17, 2010.
Landfill Closures
Many landfills in southern California are scheduled to close between now and 2040. This is because
existing sites are filling up and new sites have not been permitted to date. CalRecycle maintains a
database of landfill sites and their expected closure dates. While it is unknown how much waste might
come to the SVLRC upon closure of other facilities, the CalRecycle (formerly California Integrated
Waste Management Board or CIWMB) data are used in this study to identify when landfills in southern
California are scheduled to close and to estimate the potential for additional waste to come to the SVLRC
when these facilities close. The study accounts for landfill closures in estimating future demand for
disposal capacity. (See Table 3).
Future Disposal Demand Growth
Absolute disposal demand has increased over time, but at a slower rate than population growth. Economic
activity also affects disposal with the recent economic slow-down causing a decrease in waste disposal as
households and businesses limit new purchases and new construction. Future upturns in the economy are
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likely to result in increasing waste disposal as construction and purchasing returns to more typical levels.
For the purposes of this study, a county-specific growth factor of 0.9 times the population growth forecast
by the California Department of Finance is used. This results in an absolute growth in waste disposal, but
at a lower rate than population growth. Using this assumption, per capita waste disposal gradually
declines over time as has been consistent with experience over the last twenty years.
Sources of Waste
The SVLRC currently receives waste from many counties in California. To some extent, this is an artifact
of the way the movement of waste is accounted for in California. Because much of the waste comes
through transfer stations where waste from multiple sources is typically sorted to remove recyclables and
other valuable components, the remaining non-recyclable waste is consolidated into loads delivered to
one or another landfill facility. Thus, waste arriving at the SVLRC can appear to be coming from distant
locations, such as San Bernardino County, because some of the original waste arriving at the transfer
facility originated there. I lowever, while some of the waste in a given load may actually have originated
that far away, the actual sources of waste in any given load are uncertain. The statistics do not mean that a
single truckload actually came from a distant source solely for the purpose of disposing of waste at the
SVI,RC. The documented sources of waste coming to the SVLRC (using the standard waste accounting
methodology) in the first quarter of 2008 provide the baseline data for projecting future sources and
quantities.
Policy Options
A number of alternatives have been suggested to provide Ventura County with some ability to constrain
waste coming from outside the county to in-county landfills. Two local options have been proposed. One
would involve defining a "wasteshed boundary" and disposal of waste originating outside the boundary
would be prohibited. The other is a fee on "out of area waste"that would increase the cost of disposing of
out-of-county waste at a landfill in Ventura County. For reasons explained in the study, a wasteshed
boundary was determined to be infeasible because it would involve a government entity (the County)
imposing a constraint on a commercial entity which could involve constitutional restraint of trade issues.
This approach is not analyzed in this study. However, several "out of area" fee levels were analyzed to
assess the effect they might have on lessening the flow of waste into the county.
Price Elasticity
The change in demand resulting for the out-of-area fee is computed based on estimates of the price
elasticity of demand related to the landfill fees. The price elasticity of demand is the ratio between the
percent change in disposal quantity demanded and percent change in total disposal cost(tipping cost plus
other fees). An elasticity of 1 indicates that in increase in cost of 10%, for example, would involve a
decrease in demand of 10%. However, this simple relationship rarely exists in the real world. In the case
of landfill demand, elasticity is limited by the unavailability of alternatives. Consumer price elasticity for
solid waste has been determined to be low with estimates in the .40 to .10 range. An elasticity of .10
would result in minimal changes in response to increases in the fee and is not presented here (e.g. a 50
percent increase in cost—say from $40 to $60 per ton — would reduce out of area receipts by 5 percent).
The analysis assumes a .40 elasticity to examine the greatest possible effect of an out of area fee(e.g. a 50
percent increase in cost—say from $40 to $60 per ton—would reduce out of area receipts by 20 percent).
Summary of Analyses
This capacity analysis is based on a spreadsheet model designed to help assess probable impacts on
SVLRC's capacity and the overall landfill capacity in Ventura County assuming either a continuation of
the current permitted operations or landfill expansion and an increase in receiving limits as proposed. The
model extrapolates future waste disposal rates based on a factor(0.9)of population growth forecast by the
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California Department of Finance projecting the current distribution of sources that deliver waste to the
facility(first quarter 2008 baseline data) into the future using growth rates for Ventura and other counties.
It is important to recognize that projections far into future years are subject to a great deal of uncertainty.
Therefore, this study and its conclusions should not be taken to be predictions of future situations that are
certain to actually occur. What is important is that each of the cases analyzed was subject to the same
assumptions except for the parameters being tested. Therefore, it is the differences between the cases that
are instructive, not the specific projections of closure dates or waste capacity limits.
The model permits the evaluation of multiple cases (many more than reported here) and can be run with
low, medium, and high assumptions for the growth of disposal demand and various out of area fee levels,
as well as several different assumptions related to what amount of waste would be diverted to the SVLRC
when other landfills in the region close. The following summarize the key findings of the capacity study
based on the medium (most probable)case analyses.
Summary of Conclusions
Base Case with Transfers from Landfill Closures
In the Base Case, all waste origins as received in and documented in the first quarter 2008 data are
assumed to continue as deliveries to SVLRC in the same proportions and inflated by appropriate county-
specific growth factors. Materials from other landfill closures are assumed to be delivered to SVLRC
upon their closure if capacity exists at SVLRC. Under these assumptions, the SVLC would reach daily
capacity in 2013 and closure in 2024 before the scheduled closure of the Toland Road Landfill in 2027
(see Table ES-1). Therefore, under this scenario (daily limit of 3,000 tons per day and no additional
permitted capacity), wastes that might have been delivered to SVLRC when the Toland Road Landfill
closes would need to be diverted to another location.
Project Case with Transfers from Landfill Closures
The Project Case also assumes the closure of the identified landfills (see Table 3). Materials from these
other landfills are assumed to be delivered to SVLRC upon their closure if capacity exists at SVLRC.
Table ES-1 shows the daily capacity limit of 6,000 tpd would be reached in 2037 and the landfill would
close in 2053. This is consistent with the EIR which used a different calculation method.
Project Case with Out of Area Fee Sensitivity Analysis
Sensitivity analyses were conducted under the Project Case to assess the potential impact of three out of
area fee levels: $10, $20, and $40 per ton. The fees were assumed to be applied to all trucks and vehicles
from out of Ventura County and only to waste. Transfers from closing landfills were subject to the same
elasticity calculations as projected out of area waste deliveries. That is, the expected transfer tonnages
identified above in Table 3 were added to the wastes projected using the population-based factor before
the application of the elasticity calculation. Therefore, at higher assumed fees, all out of area waste, both
projected based on population and estimated from closed landfills, was reduced according to the elasticity
factor of 0.40. The factor was not applied to the Toland Road Landfill because it is an in-county landfill.
The fees were not applied to Alternative Daily Cover, which comes from both Orange and Los Angeles
Counties but is essential to project operations. The analyses assessed the potential change in receipts for a
price elasticity of 0.4.
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Table ES-1. Summary of Findings for All Cases
Remaining Daily Capacity Estimated Closure
Case Capacity in 2025 reached Date(year)
(year)
Current Receiving Rate of 2,500 tpd increasing 0 mm tons 2013 2024
to 3,000 tpd plus anticipated landfill closures (3,000 t d
Project Case with receipts from closing 57.1 mm tons 2037 2053
landfills-No Fee
Project Case with receipts from closing 58.0 mm tons 2037 2054
landfills-$10.00 Fee
Project Case with receipts from closing 58.9 mm tons 2042 2055
landfills-$20.00 Fee
Project Case with receipts from closing 60.8 mm tons Not reached 2058
landfills-$40.00 Fee
At$10.00 per ton, the model did not show a very substantial reduction in out of area receipts compared to
the No Fee case. However, at $20.00 per ton, receipts were depressed somewhat such that the daily
capacity would take about five more years to achieve and the estimated closure would be extended out by
two years. At$40.00 per ton, receipts were depressed considerably. Daily capacity would not be achieved
for the life of the project and closure would be extended by about five years to 2058. Note that$40.00 per
ton is almost a doubling of the current tipping fees for out of area waste, raising the total cost for out of
area waste to over$80.00 per ton.
A fee at the $40 per ton level would likely generate substantial revenues for the County (over
$26,000,000 per year in 2050 using 2008 dollars). The political feasibility of doing so, as well as a
reasonable use for the funds, would need to be considered carefully. Note also that, at the $20 and $40 out
of area fee levels, surcharge revenues would be somewhat lower than without the out of area fee because
overall receipts are depressed by the out of area fees (see Table 11). However, total receipts would still be
considerable. The effect of a substantial out of area fee would be manifest as a modest annual reduction in
the SVLRC's receipts of disposal wastes from out of area sources and, therefore, of total wastes received.
It would be expected to extend the life of the facility by several years, depending on the fee level.
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Capacity Analysis
Introduction
In conjunction with the EIR on the Simi Valley Landfill and Recycling Center (SVLRC) expansion,
SAIC was tasked to prepare a capacity study to assess the future landfill capacity in Ventura County as it
would be affected by the expansion of permitted capacity at the SVLRC from 3,000 tons per day to 6,000
tons per day of waste disposal and the enlargement of waste disposal capacity. The proposed project
would expand the waste capacity of the SVLRC to 98.5 million tons, an increase of 63.7 million tons
above currently permitted levels. Recent receipts have been on the order of 2,500 tons per day, about 500
tons per day less than the 3,000 tons per day daily permit limit.
In addition to serving Ventura County, the landfill currently accepts waste from outside Ventura County.
Approximately 36 percent of waste accepted in the first quarter of 2008 originated outside the County, a
fraction that is believed to be representative of recent operations. Population growth throughout the
region, as well as the closure of other landfills in the region, will likely increase demand for available
SVLRC capacity in the future. This Capacity Study addresses the potential future outcomes that could
reasonably be expected from possible approaches to managing waste disposal in Ventura County.
The following sections address, in turn, the following:
• Issues related to the analyses
• Background information relating to sources of information and assumptions
• Description of the modeling methodology
• Analyses of the results for three scenarios:
• Base Case(existing permitted facility and future anticipated growth)
• Project Case(proposed permitted facility and future anticipated growth)
• Project Case with Out of Area 1'ee (project case with three different out of area fee levels
of$10, $20, and $40 per ton)
Issues
A number of key issues bear on estimating future landfill capacity and disposal demand. These include
the expected availability of landfill capacity to accept future disposal demand, the expected growth in
disposal needs, the distribution of sources of waste and available disposal sites, as well as policy actions
that could be taken to affect future disposal activity.
Landfill Capacity
Title 14,CCR §118755 requires county governments to adopt a Countywide Siting Element(CSE)as part
of their Countywide Integrated Waste Management Plan(CIWMP). The CSE must demonstrate that there
is a countywide minimum of 15 years of combined permitted disposal capacity through existing or
planned solid waste disposal and transformation facilities or though additional strategies. Therefore, it is
in the interest of each County to evaluate and ensure adequate capacity for the waste generated within its
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borders. The Ventura County Countywide Siting Element (CSE) is one component of the County
Integrated Waste Management Report. The Siting Element was originally approved by the State in June
2001 and was most recently updated and approved by CalRecycle on August 17, 2010.
Many landfills in southern California are scheduled to close between now and 2040. This is because
existing sites are filling up and new sites have not been permitted to date. CalRecycle maintains a
database of landfill sites and their expected closure dates. While it is unknown how much waste might
come to the SVLRC upon closure of other facilities, the CalRecycle (formerly California Integrated
Waste Management Board or CIWMB) data are used in this study to identify when landfills in southern
California are scheduled to close and to estimate the potential for additional waste to come to the SVLRC
when these facilities close. The study accounts for landfill closures in estimating future demand for
disposal capacity.
Future Disposal Demand Growth
Absolute disposal demand has increased over time, but at a slower rate than population growth. Economic
activity also affects disposal with the recent economic slow-down causing a decrease in waste disposal as
households and businesses limit new purchases and new construction. Future upturns in the economy are
likely to result in increasing waste disposal as construction and purchasing returns to more typical levels.
For the purposes of this study, a county-specific growth factor of 0.9 times the population growth forecast
by the California Department of Finance is used. This results in an absolute growth in waste disposal, but
at a lower rate than population growth. Using this assumption, per capita waste disposal gradually
declines over time as has been consistent with experience over the last twenty years or so.
Sources of Waste
The SVLRC currently receives waste from many counties in California. To some extent, this is an artifact
of the way the movement of waste is accounted for in California. Because much of the waste comes
through transfer stations where waste from multiple sources is typically sorted to remove recyclables and
other valuable components, the remaining non-recyclable waste is consolidated into loads delivered to
one or another landfill facility. Thus, waste arriving at the SVLRC can appear to be coming from distant
locations, such as San Bernardino County, because some of the original waste arriving at the transfer
facility originated there. However, while some of the waste in a given load may actually have originated
that far away, the actual sources of waste in any given load are uncertain. The documented sources of
waste coming to the SVLRC (using the standard waste accounting methodology) in the first quarter of
2008 provide the baseline data for projecting future sources and quantities.
Policy Options
A number of alternatives have been suggested to provide Ventura County with some ability to constrain
waste coming from outside the county to in-county landfills. Two local options have been proposed. One
would involve defining a "wasteshed boundary" and disposal of waste originating outside the boundary
would be prohibited. The other is a fee on "out of area waste"that would increase the cost of disposing of
out-of-county waste at a landfill in Ventura County. For reasons explained in the study, a wasteshed
boundary was determined to be infeasible because it would involve a government entity (the County)
imposing a constraint on a commercial entity which could involve constitutional restraint of trade issues.
This approach is not analyzed in this study. However, several "out of area" fee levels were analyzed to
assess the effect they might have on lessening the flow of waste into the county.
Wasteshed Boundary Issue
For some publically operated landfills, a geographic area is defined within which waste may be accepted
at a landfill. Waste from outside the area is refused. This "Wasteshed Boundary" serves to limit the
geographic area from which waste can be accepted, thereby placing a limit on the amount of waste likely
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to come to the landfill in any given time period and, secondarily, prolonging the potential life of the
landfill by limiting the rate at which it can be filled by out-of-area waste. The effect of a wasteshed
boundary depends, to some extent, on the sources and potential volumes of waste from outside the
boundary that might be delivered to the landfill in the absence of the restriction. In areas, such as eastern
Ventura County, with a large waste generating population nearby, there is reason to believe that imposing
a wasteshed boundary would prolong the life of a landfill while at the same time curtailing the economic
rewards of operating the facility. While the capacity study model was used to evaluate one wasteshed
boundary scenario (restricting waste received to only Ventura County origins based on reported waste
origins for the facility), that scenario was deemed too speculative to provide useful information and,
therefore, is not reported here. In addition, establishing a wasteshed boundary for an operating privately
owned facility presents a number of other feasibility constraints discussed in the following paragraphs.
At least two U.S. Supreme Court cases present substantial impediments to imposing a wasteshed
boundary on the SVLRC. As a privately operated facility, the landfill is a commercial venture and subject
to the commerce clause of the U.S. Constitution. Were Ventura County to impose a blanket wasteshed
boundary for receipts at the SVLRC, it may be considered an unconstitutional restraint of interstate
commerce under the reasoning employed in the following two U.S. Supreme Court cases. In Fort Gratiot
Landfill, Inc. v. Michigan Department of Natural Resources, et al. (1977), the State of Michigan imposed
a law prohibiting private landfill operators from accepting solid waste that originates outside the county in
which their facilities are located unless authorized by a local solid waste management plan. The landfill
operator challenged the law and the Supreme Court held that the law violated the commerce clause and
that the state had failed to prove that the import restrictions served a valid health and safety purpose that
could not adequately be served by another means. In another case, City of Philadelphia et al. v. State of
New Jersey et al. (1978), the Supreme Court held that a law prohibiting the importation of most solid or
liquid waste from outside the state also violated the commerce clause. The Court reasoned that, if one
political entity were permitted to prohibit the importation of waste from another political entity, then
every such entity could close their borders to any other. The Court was unwilling to sanction "the efforts
of one State to isolate itself in the stream of interstate commerce from a problem shared by all." In both
cases, the Court took note that the laws applied to private landfill operators.
It may be possible to avoid a Commerce Clause challenge to a wasteshed boundary if an exception is
provided for out-of-state waste. In this instance, a provision would be included in the governing
regulation or permit that all waste from out-of-state shall be accepted on the same terms as in-wasteshed
waste if presented for disposal. This would, for example, permit waste from Naval operations in Port
Hueneme that occasionally comes from Antarctic research stations to be accepted without limit (a
relatively rare occurrence in any event). Such an exception would be designed specifically to preclude a
Commerce Clause challenge.
Another issue relating to a wasteshed boundary is how waste is accounted for in California. This issue is
important because, although waste origins and destinations are reported for all jurisdictions, the method of
tracking the waste is an accounting exercise rather than a mechanism for tracking the actual origin and
destination of any particular ton of waste. Some trash trucks deliver waste directly to a landfill and the
source and destination of waste in this case is unambiguous. However, when a transfer station is involved,
waste from different trucks and different sources may be combined. At the transfer station, waste may be
sorted, often having the recyclable material removed, and then consolidated into larger truckloads for
delivery to the landfill. Each load of waste delivered to a transfer station becomes part of a load of waste
leaving the facility for a disposal site. The outgoing transfer truckloads therefore become commingled
with waste from multiple origins. While reported inbound and outbound transfer station solid waste
tonnages balance overall, the actual origin of the waste within any given truck is lost.
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This factor confounds the ability of a facility to identify the true source of waste being presented for
disposal. To adequately enforce a wasteshed boundary and preclude wastes from outside that geographic
area from being received, it is essential to be able to distinguish the source of the waste in any given load
presented for disposal. Loads with any out-of-area waste would need to be turned away at the facility
entrance station. While this might appear straight forward, it is not. Much of the waste destined for the
Simi Valley Landfill and Recycling Center comes from transfer stations and many, if not most, transfer
stations receive wastes from multiple jurisdictions and geographic areas. In addition, many also remove
all recyclable materials and send just the non-recyclable residual to a landfill. This residual is only a
fraction of the total waste material originally received. To make shipment of the non-recyclable wastes to
a landfill reasonably economic, waste loads are consolidated and residuals may be combined with wastes
from other sources. Operationally, it is difficult, if not impossible, to consolidate the residual non-
recyclable waste based on its origin. This would require allocating sorting space solely to individual
jurisdictions that are either inside or outside the wasteshed boundary, a practice that may not be
compatible with the existing available sorting space at many transfer stations. Therefore, there are
substantial operational impediments to imposing a wasteshed boundary on existing operations.
In addition, there is no certain mechanism to determine the origin of waste. As such, haulers may be
tempted to be less than truthful about the origin of the waste in any given load, especially if there is no
practical way to verify the origin of a load at the time waste is received. The difficulty of verifying the
origins of waste adds another layer of complexity and uncertainty to imposing a wasteshed boundary that
requires screening the incoming waste stream at a landfill. While origins may be able to be controlled
somewhat via contracts with hauling companies, many haulers and individuals will not be subject to a
binding or enforceable agreement.
Finally, the SVLRC has existing and long-standing commercial contracts or agreements with numerous
waste haulers and transfer stations, as well as other Waste Management companies, both within and
outside Ventura County or any reasonably definable wasteshed boundary. Imposing a wasteshed
boundary outside of which no waste could be delivered to the SVLRC would very likely void or
otherwise interfere with many of those commercial relationships as well adding to the costs of sorting and
processing wastes and separating recyclables. On the other hand, if all existing contracts and agreements
with Waste Management Inc. for waste deliveries to the SVLRC were honored in order to avoid undue
interference with existing commercial relationships, it is very likely that the imposition of a wasteshed
boundary would be largely ineffective in terms of limiting waste receipts. Honoring the many existing
commercial agreements from outside a defined boundary would effectively nullify, or at least
substantially dilute,the intended effect(to reduce waste receipts from outside Ventura County).
In summary, implementing a wasteshed boundary is therefore not without numerous potential practical,
political, and economic difficulties. Based on the court cases and other issues discussed above, as well as
the potential for political conflict and economic constraints, a wasteshed boundary imposed on the
SVLRC by Ventura County is considered infeasible and scenarios based on a wasteshed boundary were
not analyzed using the model.
Background
Waste generation is a function of population, employment, business activity, and consumer spending.
More people, plus an increase in better paying jobs, leads to growth in the purchase of goods and,
ultimately, waste generation (via disposal of packaging materials, no longer wanted consumer goods,
demolition and construction debris, etc.). On the other hand, unfavorable economic conditions tend to
reduce the demand for solid waste disposal capacity. Recent declines in landfill receipts are consistent
with the current economic downturn.
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Current Ventura County Waste Generation
Figure 1 presents total waste generation within Ventura County from 2000 to 2007. In Ventura County,
total waste requiring disposal peaked in 2005. Subsequently disposal has been decreasing as the economy,
along with housing construction, has slowed. Landfill-bound disposal continued to decrease in 2008 with
the first quarter report indicating that about 188,000 tons of municipal solid waste were accepted at the
landfill in the first quarter of the year, somewhat lower than the 2007 quarterly totals shown in Figure 1.
Not all waste generated within Ventura County is necessarily destined for disposal within the county.
About 7 percent of the disposal waste originating in Ventura County is disposed in Los Angeles County
with small portions (less than one percent) going to Kern, Kings, Orange and Santa Barbara counties.
This waste typically passes through a transfer station where incoming wastes are commingled and sent to
various locations subsequent to sorting at the transfer station.
There are currently two active landfills in Ventura County, the Simi Valley Landfill and Recycling Center
and the Toland Road Landfill. The Toland Road Landfill, which is publically operated, is currently
scheduled to close by May 2027. Under its conditional use permit limits, the Toland Landfill may accept
waste only from the residents of the Santa Clara Valley and commercial loads that have been processed
through a Ventura County transfer station or materials recycling facility (see Table 1 and Figure 2).
Figure 1.Total Waste Generated in Venture County by Quarter,2000 to 2007
350.000
300.000 Total Disposal+ADC
/ t
250,000 `�' ` /
+► /
♦�/ �♦ Total Disposal
200.000
150.000
100,000
50.000 -
0 0
~ 2000 2001 2002 2003 2004 2045 2006 2007
Year
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Simi Valley Landfill and Recycling Center FINAL Capacity Study Analysis
Table 1. Simi Valley and Toland Road Landfill Disposal and ADC,2000 to 2007 (tons)
2000 2001 1 2002 J 2003 1 2004 1 2005 2006 2007
Simi Valley Landfill and Recycling Center
Disposal 581,777 653,186 757,079 752,794 834,438 875581 792,252 794,589
ADC: 60,118 80,215 104,987 142,044 144,017 153,080 192,270 211,388
Toland Road Landfill
Disposal 329,890 319,644 335,389 354,361 379,733 405,067 378,174 357,407
ADC 120,588 31,609 51,042
Total 971,785 1,053,045 1,197,455 1,249,199 1,358,188 1,554,316 1,394,306 1,414,426
Figure 2. Simi Valley Landfill and Recycle Center(SVLRC)and Toland Road Landfill(TRLF)
Total Disposal and ADC, 1995 to 2007 by Quarters
300,000
SVLRC Total Dispposal+ADC
250.000
200.000 now
SVLRC Total Disposal
G 150.000 t
!0 `�
TRLF Total Disposal+ADC
100.000 •
A
50.000
2000 2001 2002 2003 2004 2005 2006 2007
Simi Valley Landfill and Recycling Center Baseline
A majority of materials accepted at SVLRC originate in Ventura County. Some 64 percent of the
materials accepted in the first quarter of 2008 were from Ventura County with slightly over 31 percent
originating in Los Angeles County, the next largest source(see Table 2).
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Table 2. Source of Disposal at Simi Valley Landfill, 1st Qtr,2008
Disposed Disposed As
Disposed Or ADC+ As Percent Percent Of
Origin Of Materials Tons Accepted Transformed Beneficial Use Of Total Total Disposed
Accepted Originating In
Count
Fresno* 13 13 0 100.0% 0.01%
Intemational* 94 94 0 100.0% 0.05%
Kern* 46 46 0 100.0% 0.02%
Los Angeles 90,411 59,531 30,880 65.8% 31.57%
Orange 19,127 3,156 15.971 16.5% 1.67%
Riverside 411 407 3 99.2% 0.22%
San Bernardino 2,147 2,147 1 100.0% 1.14%
San Diego* 17 17 0 100.0% 0.01%
Santa Barbara 1 2,207 2,203 4 99.8% 1.17%
Tulare* 1 157 157 0 100.0% 0.08%
Ventura 1 154,207 120,807 33,275 78.3% 64.06%
* less than 0.1% 268,837 188,577 80.134 100.0%
Landfill Closures
A key factor likely to increase demand for landfill services at SVLRC is the closures of other permitted
landfills in the region. Other landfills in the region will eventually reach their capacity limit. When other
facilities close, it is likely some solid waste previously delivered to these closed landfills would be
diverted to SVLRC for disposal. While the jurisdictions they serve will no doubt take steps consistent
with California law to develop alternative programs and landfill resources, some of the disposal waste is
likely to be delivered to SVLRC. It should be understood that there is no generally accepted methodology
for determining how much of the disposal destined for one facility is likely to be sent to another upon that
facility's closure. The estimates used in the analyses are necessarily tentative and range from 2 percent to
ten percent. Nevertheless, it is believed that these are not unreasonable and, when considered in
aggregate, represent a rational expectation for the amount of waste that may be diverted to the SVLRC
when other landfills in the region close. Table 3 presents the projected landfill closures reported on the
CalRecycle website(http://www.calrecycle.ca.gov/SWFacilities/Directory/).
Table 3. Projected Landfill Closures
Reported Expected Potential% Potential tons per
Landfill County tons per day Closure Year to SVLRC day to SVLRC
Lancaster Los Angeles 1,337 2012 2% 27
Olinda Alpha Orange 6,008 2013 2% 120
Puente Hills Los Angeles 12,041 2013 5% 602
Chi uita Canyon Los Angeles 4,946 2019 10% 494
Scholl Canyon Los Angeles 1,283 2019 10% 128
Ta'i uas Santa Barbara 702 2020 5% 35
Frank R. Bowerman Orange 6,602 2022 2% 132
Toland Road Ventura 1,141 2027 100% 1141
Calabasas Sanitary Los Angeles 1,483 2028 10% 148
Sunshine Canyon Los Angeles 3,740 2037 10% 374
Note that not all the closures identified above would necessarily come to the SVLRC in the percentages
assumed. Also, the potential transfers are based on a "no fee" situation. When transfers from closing
landfills are analyzed below with fees, these percentages would be lower due to the depressing effect of
the fee on out of area waste receipts. Some may be diverted to SVLRC at either higher or lower
percentages depending on the economics at the time ol'closure. Nor would closures necessarily happen in
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the years currently predicted since the current slow economy may extend closure dates due to slower than
expected receipts. Nevertheless, the above estimates are believed to be reasonable and useful for the
purposes of assessing possible future outcomes.
Modeling
The modeling effort had a number of difficulties to address. In particular, estimates of jurisdictional
disposal needs are difficult. Waste generation is correlated with population changes, construction
activities, employment, and consumption as evidenced by the reduction in waste delivered to landfills
during the current economic slowdown. Public awareness of waste disposal constraints is also expected to
lead to some reduction in per capita disposal rates, although the magnitude of the effect is difficult to
estimate. Potential future changes in state law may mandate higher levels of recycling and waste
reduction which can be expected to stimulate even greater public awareness. At the same time, alternative
solid waste disposal sites provide disposal companies a choice of potential destinations for materials;
many factors come into play in the decision process. Some solid waste disposal facilities may reach their
daily capacity limits early in the day, thereby either requiring the diversion of waste to another site or
deferring delivery to another day. Operating costs aside, transfer trucks may then need to go to more
distant locations for various reasons, including avoidance of early daily closures or on-going commercial
relationships.
Modeling such variation is a complex process. Ideally, the analysis would be regional in scope
incorporating factors that would impact disposal decisions at each potential source including alternative
landfill limits and remaining capacity. Within the limits of this study, the Ventura County Simi Valley
Landfill Capacity Model, is a simulation model that permits testing of alternative assumptions about
changes in disposal tonnages and the sources of the waste at SVLRC. The model does not seek to define
all potential variables, but does provide for the selection of a reasonable range of possible assumptions
and outcomes for testing.
The Basic Model
The model, developed in a spreadsheet format, incorporates municipal solid waste(MSW)and alternative
daily cover (ADC), both of which would consume available capacity. The model provides the ability to
identify jurisdictions within Ventura County, Santa Barbara County, and other counties from which
SVLRC currently receives waste material. The model also allows the selection of which jurisdictions are
considered to be within the SVLRC's wasteshed or subject to a fee and allows addressing the individual
waste streams separately should different out-of-area fees or an outright prohibition be considered based
on type of waste. While this capability exists in the model, a wasteshed boundary is not presented because
the legal,economic, and political constraints make it infeasible to implement as discussed previously.
The model permits testing the implications of alternative disposal requirements either at the jurisdictional
level or for more generalized analysis at the county level for Ventura and Santa Barbara counties. The
other counties from which SVLRC currently receives waste are treated as a group under the category of
Other Counties.
Waste streams that may be diverted from future anticipated landfill closures are also incorporated into the
simulations. The impact of the year of closing and proportion of current fill rates to be diverted to SVLRC
may be tested.
Growth Estimates
For the purposes of the model development, detailed disposal data for SVLRC for the first quarter of
2008 provided by Waste Management was used to establish the baseline estimates. The data identifies
tonnages of disposal material, ADC and beneficial reuse material from locations by county. The data is
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categorized into four major sources- Ventura County, Santa Barbara County, Other Counties, and landfill
closures.
The analysis applies a medium growth forecast for each source category incorporating different growth
rates by specific time periods (California Department of Finance growth rates tend to be lower in more
distant future years than in near term years). The calculated growth in the waste delivered to SV LRC is
based on the population forecasts prepared by the California Department of Finance (CDF) and is shown
on Table 4. (http://www.dof.ca.gov/research/demographic/data/race-ethnic/2000-50/) For the purposes of
this study, a county-specific growth factor of 0.9 times the population growth forecast by the California
Department of Finance is used. This results in an absolute growth in waste disposal, but at a lower rate
than population growth. Using this assumption, per capita waste disposal gradually declines over time as
has been consistent with experience over the last twenty years or so.
Table 4. Annual CDF Population Growth Rate,2009 to 2050
County 2009-2010 2011-2015 2016-2020 2021-2050
Ventura 1.07 1.13 l.1 1 0.81
Santa Barbara 0.88 0.56 0.56 0.49
Los Angeles 0.60 0.61 0.68 0.49
Orange 1.19 0.88 0.86 0.40
San Bernardino 1.93 1.78 1 1.66 1 1.12
Source.Califomia Department of Finance
With the economy currently in a recession, the assumption is made that for the years 2009 and 2010, there
would be no growth in the amount of waste generated. The growth rate assumes that the waste generated
would growth at 90 percent of the population growth rate allowing for a continued decline in per capita
waste generation as shown in Table 5.
Table 5. Generated Waste Growth Rates
2009-2010 2011-2015 2016-2020 2021-2075
Ventura Count
Disposal Growth 0.00% 1 1.02% 1.00% 0.73%
Santa Barbara Count
Disposal Growth 0.00% 1 0.50% 0.50% 0.44%
Other Counties
Disposal Growth 0.00% 0.61% 0.66% 0.44%
Price Elasticity
The change in demand resulting for the out-of-area fee is computed based on estimates of the price
elasticity of demand related to the landfill fees. The price elasticity of demand is the ratio between the
percent change in disposal quantity demanded and percent change in total disposal cost (tipping cost plus
other fees). An elasticity of 1 indicates that in increase in cost of 10%, for example, would involve a
decrease in demand of 10%. However, this simple relationship rarely exists in the real world. It is heavily
influenced by the availability of alternatives with comparable value. In the case of landfill demand,
elasticity is limited by the unavailability of alternatives. The change in demand resulting from the out-of-
area fee is computed in the model based on the estimated price elasticity of the landfill fees.
Consumer price elasticity for solid waste has been determined to be low with estimates in the .40 to .10
range. Higher costs for waste disposal can lead to more recycling rather than disposal. While consumer
demand for waste disposal may be low, the demand for specific landfill services would depend on land
fill fees and charges as well as other factors such as distance, travel times, operating costs, daily capacity
limits and other factors. Of particular importance are availability and location, daily capacity limits and
fees of disposal alternative. Estimates of the cross elasticity of demand (i.e. the change in quantity of
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disposal services at landfill A as a result of the change in price at landfill B) are unknown with respect to
SVLRC. An elasticity of.]0 would result in minimal changes in response to increases in the fee and is not
presented here(e.g. a 50 percent increase in cost—say from $40 to $60 per ton—would reduce out of area
receipts by 5 percent). The analysis assumes a .40 elasticity to examine the greatest possible effect of an
out of area fee (e.g. a 50 percent increase in cost from $40 to $60 per ton would reduce out of area
receipts by 20 percent).
Analyses
The capacity analysis examines alternative assumptions that likely would affect the remaining life of
SVLRC under two basic cases. The first case is analyzed under the current permits. The second case is
under the proposed permit conditions including the expansion of total landfill capacity as well as the
increase in the amount of permitted daily disposal material that can be accepted at the landfill.
The analysis below considers the landfill from two perspectives. The first considers how the growth in the
disposal of waste affects the years of capacity that remain. The second looks at a shorter planning
horizon, estimating the years of capacity that would remain in the year 2025.
Base Case with Transfers from Landfill Closures
In the Base Case, all waste origins as received in and documented in the first quarter 2008 data are
assumed to continue as deliveries to SVLRC in the same proportions and inflated by the appropriate
growth factors described above. Materials from other landfill closures are assumed to be delivered to
SVLRC upon their closure if capacity exists at SVLRC. Under these assumptions (see Table 6), the
SVLC would reach daily capacity in 2013 and closure in 2024 before the scheduled closure of the Toland
Road Landfill in 2027. Therefore, under this scenario (daily limit of 3,000 tons per day and no additional
permitted capacity) when the Toland Road Landfill closes, wastes that had been delivered there would
need to be diverted to a location other than the SVLRC. Table 9 at the end of this report provides the
detailed calculations for future years to 2050.
Table 6. Base Case Summary
Base Case with Transfers from Other Landfill Closures
Project Receipts at Actual or Permitted Levels
Remaining Capacity Daily Capacity Estimated Closure
Condition (3,000 tpd)reached
in 2025 Date(year)
(year)
Current Receiving Rate of 2,500 tpd
increasing to 3,000 tpd plus anticipated 0 mm tons 2013 2024
landfill closures
Project Case with Transfers from Landfill Closures
The Proposed Project Case assumes the closure of the landfills identified in "Fable 3 on schedule.
Materials from other landfill closures are assumed to be delivered to SVLRC upon their closure if
capacity exists at SVLRC. Table 7 shows the daily capacity limit of 6,000 tpd would be reached in 2037
and the landfill would close in 2053. This is consistent with the EIR which used a different calculation
method. Table 10 at the end of this report provides the detailed calculations for future years to 2050.
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Table 7. Project Case Summary
Base Case with and without Transfers from Other Landfill Closures
Project Receipts at Permitted levels
Remaining Capacity Daily Capacity Estimated Closure
Condition in 2025 (3,000 tpd) eached Date(year)r)
Receiving Rate of 6,000 tons per day
with transfers from closing landfills(EIR 57.1 mm tons 2037 2053
scenario)
Project Case with Transfers and Out of Area Fee Sensitivity Analysis
The Proposed Project Base Case was projected forward for three different potential out of area fee levels:
$10, $20, and $40 per ton. The fees were assumed to be applied to all trucks and vehicles from out of
Ventura County and only to waste. Transfers from closing landfills were subject to the same elasticity
calculations as projected out of area waste deliveries. That is, the expected transfer tonnages identified
above in Table 3 were added to the wastes projected using the population-based factor before the
application of the elasticity calculation. Therefore, at higher assumed fees, all waste, both projected based
on population growth and estimated from closed landfills, was reduced according to the elasticity factor
of 0.40. The fees were not applied to Alternative Daily Cover, which comes from both Orange and Los
Angeles Counties but is essential to project operations. Table 11 at the end of this report provides the
detailed calculations for future years to 2050.
Table 8. Project Case with Out of Area Fee Summary
Project Case with Out of Area Fees
Out of Area Fee Level Remaining Capacity in Daily Capacity(6 tpd)reached Estimate Closure Date
(dollars per ton of waste) 2025 ear (year)
No Fee 57.1 mm tons 2037 2053
$10.00 Fee 58.0 mm tons 2037 2054
$20.00 Fee 58.9 mm tons 2042 2055
$40.00 Fee 60.8 mm tons Never 2058
At $10.00 per ton, the model did not show a very substantial reduction in out of area receipts compared to
the No Fee case. However, at $20.00 per ton, receipts were depressed somewhat such that the daily
capacity would take about five more years to achieve and the estimated closure would be extended out by
two years. At$40.00 per ton, receipts were depressed considerably. Daily capacity would not be achieved
for the life of the project and closure would be extended by about five years to 2058. Note that $40.00 per
ton is almost a doubling of the current tipping fees for out of area waste, raising the total cost for out of
area waste to over$80.00 per ton.
A fee at the $40 per ton level would likely generate substantial revenues for the County (over
$26,000,000 per year in 2050 using 2008 dollars). The political feasibility of doing so, as well as a
reasonable use for the funds, would need to be considered carefully. Note also that, at the$20 and $40 out
of area fee levels, surcharge revenues would be somewhat lower than without the out of area fee because
overall receipts are depressed by the out of area fees(see Table 1 I). However, total receipts would still be
considerable. The effect of a substantial out of area fee would be manifest as a modest annual reduction in
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Simi Valley Landfill and Recycling Center FINAL Capacity Study Analysis
the SVLRC's receipts of disposal wastes from out of area sources and, therefore, of total wastes received.
It would be expected to extend the life of the facility by several years, depending on the fee level.
Future Projections
The following pages present the data generated by the capacity analyses for the Base Case and Project
Case by year under the assumption of medium growth and a price elasticity of 0.4 The following tables
provide the detailed data to the year 2050 for each case studied:
• "fable 9. Base Case Detailed Projections
• Table 10. Project Case with Transfers from Landfill Closures Detailed Projections
• Table 11. Project Case with Out-of-Area Fees Detailed Projections
References
Miranda, Lynn M.,et Al. 1996. Unit Pricing Programs for Residential Municipal Solid Waste:An
Assessment of the Literature. U.S. EPA Cooperative Agreement#CR822-917-010. March.
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Table 9. Base Case Detailed Projections
Projections
Scenarios 2009 2010 2011 2012 2013 2014 2015 2020 2025 2030 2040 2045 2050
No Out of Area Fee
Disposal(tons X 1,000) 760 760 767 782 936 936 936 936
ADC(tons X 1,000) 202 202 203 204 189 189 189 156
Total(tons X 1,000) 962 962 970 987 1,125 1,125 1,125 1,092
Remaining Capacity 15,438 14,477 13,507 12,520 11,395 10,270 9,146 3,588
Table 10. Project Case with Transfers from Landfill Closures Detailed Projections
Projections
Scenarios 2009 2010 2011 2012 2013 2014 2015 2020 2025 2030 2040 2045 2050
No Out of Area Fee
Disposal(tonsX1,000) 760 760 767 782 1,019 1,027 1,035 1,297 1,378 1,813 1,872 1,872 1,872
ADC(tonsX1,000) 202 202 203 204 206 207 208 216 221 227 217 217 216
Total(tonsX1,000) 962 962 970 987 1,224 1,234 1,244 1,513 1,600 2,040 2,089 2,089 2,088
Remaining Capacity 78,338 77,377 76,407 75,420 74,196 72,962 71,718 64,923 57,055 47,351 26,527 16,082 5,638
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Simi Valley Landfill and Recycling Center FINAL Capacity Study Analysis
Table 11. Project Case with Out-of-Area Fees Detailed Projections
Scenarios 2009 2010 2011 2012 2013 2014 2015 2020 2025 2030 2040 2045 2050
No Out of Area Fee
Disposal(Tons) 760 760 767 782 1,019 1,027 1,035 1,297 1,378 1,813 1,872 1,872 1,872
ADC(Tons) 202 202 203 204 206 207 208 216 221 227 217 217 216
Total(Tons) 962 962 970 987 1,224 1,234 1,244 1,513 1,600 2,040 2,089 2,089 2,088
Remaining Capacity 78,338 77,377 76,407 75,420 74,196 72,962 71,718 64,923 57,055 47,351 26,527 16,082 5,638
Revenues x$1,000 S3,026 $3,026 S3,052 $3,097 $3,664 $3,693 $3,722 54,390 54,617 $5,680 $5,799 $5,809 $5,820
Surcharge x S1,000 $3,026 S3,026 S3,052 $3,097 $3,664 S3,693 53,722 54,390 $4,617 S5,680 $5,799 $5,809 $5,820
Out of Area x$1,000 s0 SO SO s0 SO $0 $0 $0 $0 $0 SO $0 $0
Out of Area Fee-S 10.00
Disposal(Tons)-$10 00 734 734 741 755 969 977 985 1,225 1,301 1,734 1,872 1,872 1,872
ADC(Tons)-$0 00 202 202 203 204 206 207 208 216 221 227 217 217 216
Total(Tons) 935 935 944 959 1,175 1,185 1,194 1,441 1,522 1,960 2,089 2,089 2,088
Remaining Capacity 78,365 77,429 76,485 75,526 74,351 73,166 71,972 65,471 57,985 48,675 28,336 17,891 7,447
Total Revenues x$1,000 S4,993 $5,469 $5,518 $5,652 $8,262 $8,318 $8,375 $11,130 S11,899 $13,123 S14,624 $14,594 514,564
Surcharge x$1,000 S2,488 $2,964 52,990 53,033 S3,548 53,576 $3,604 54,220 S4,433 55,492 $5,799 55,809 55,820
Out of Area x S1,000 $2,505 S2,505 $2,528 $2,620 $4,714 $4,742 54,771 $6910 57,466 $7,631 58,825 $8,785 $8,744
Out of Area Fee-S20.00
Disposal(Tons)-$2000 708 708 715 728 920 928 936 1,153 1,223 1,654 1,856 1,872 1,872
ADC(Tons)-$0.00 202 202 203 204 206 207 208 216 221 227 238 217 216
Total(Tons) 909 909 918 932 1,126 1,135 1,144 1,369 1,444 1,881 2,093 2,089 2,088
Remaining Capacity 78,391 77,481 76,564 75,632 74,506 73,371 72,226 66,019 58,915 49.999 30,195 19,735 9,292
Total Revenues x$1,000 $6,914 $6914 S6,977 $7,179 S11,391 511,466 $11,542 $15,919 $17,103 S18,440 $21,777 S21,844 $21,776
Surcharge x S1,000 $2,426 $2,426 52,449 52,486 S2,946 S2,970 $2,995 S3,540 $3,727 S4,769 $5,295 $5,297 55,309
Out of Area x$1,000 S4,487 S4,487 $4,529 S4,693 58,444 $8,496 S8,548 $12,379 $13,375 $13,671 $16,482 $16,547 516,467
Out of Area Fee-$40.00
Disposal(Tons)-$40 00 655 655 662 673 822 829 836 1,009 1,067 1,495 1,664 1.710 1,757
ADC(Tons)-S0 00 202 202 203 204 206 207 208 216 221 227 238 244 250
Total(Tons) 857 857 865 877 1,028 1,036 1,045 1,225 1,288 1,722 1,902 1,953 2007
Remaining Capacity 78,443 77,586 76,721 75,844 74,816 73,780 72,735 67,115 60,774 52,648 34,576 24,914 14,988
Total Revenues x S1,000 59,188 S9,188 $9,273 59,558 $15,671 $15,773 S15,875 $22,194 $23,882 S25,369 530,132 530,825 $31,535
Surcharge x S1,000 S2,303 S2,303 $2,324 $2,357 $2,714 52,737 52,760 S3,200 $3,360 $4,394 S4,842 S4,977 $5,116
Out of Area x 51,000 $6,985 $6,885 S6,948 $7,201 S12,957 $13,036 S13,115 $18,994 $20,522 520,976 525,289 $25,848 526,419
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