HomeMy WebLinkAboutAGENDA REPORT 2011 0316 CC REG ITEM 10F ITEM 10.F.
.Ity Council Meeting
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MOORPARK CITY COUNCIE -
AGENDA REPORT'' '""�
TO: Honorable City Council
FROM: Dave Klotzle, Interim City Engineer/Public Works Director ]•
Prepared by: Shaun Kroes, Senior Management Analyst,_ --
DATE: March 4, 2011 (CC meeting of 03/16/11)
SUBJECT: Consider Approval of Moorpark Vector Control Division Pesticides
Application Plan and Authorization to Submit a Notice of Intent for a
General National Pollutant Discharge Elimination System (NPDES)
Permit for Biological and Residual Pesticide Discharges from Vector
Control Applications
BACKGROUND/DISCUSSION
On March 1, 2011, the California Water Resources Control Board (Board) adopted Water
Quality Order No. 2011-XXXX-DWQ, General NPDES Permit for Biological and Residual
Pesticide Discharges from Vector Control Applications. The Board has not yet provided a
finalized Permit number. Order 2011-XXXX-DWQ updated previous Order No. 2004-0008-
DWQ. It is staff's understanding that the Moorpark Vector Control Division did not apply for
a Notice of Intent(NOI) under 2004-0008-DWQ due to a court injunction,which suspended
the requirement for coverage until April 9, 2011. During the court injunction, coverage
under 2004-0008-DWQ was voluntary. Order 2011-XXXX-DWQ now mandates that all
vector control agencies that apply pesticides to water bodies of the United States or any
water body that could potentially flow to a water body of the United States submit a NOI to
the Board. The NOI requires that a Pesticide Application Plan (PAP) be submitted along
with the NOI. The PAP provides a description of what pesticides the vector control agency
utilizes and how it ensures that the pesticides are managed appropriately.
Order No. 2011-XXXX-DWQ also requires that the vector control agency monitor water
bodies that it sprays for potential impacts to the water body. Monitoring services can be a
significant fiscal impact, potentially costing thousands of dollars. The Moorpark Vector
Control Division is a member of the Mosquito and Vector Control Association of California
(MVCAC). The MVCAC was able to successfully implement a statewide monitoring
program that the Board agreed would satisfy monitoring requirements for all MVCAC
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Honorable City Council
March 16, 2011
Page 2
members. The Moorpark Vector Control Division would not need to implement its own
monitoring program; instead, it would rely on MVCAC to provide statewide monitoring
information to the Board. Moorpark Vector Control would pay an annual fee of
approximately $350 to the MVCAC to participate in the annual monitoring program.
Although the Board has not yet provided a finalized Permit or appropriate forms to
complete, the MVCAC is encouraging all members to submit their NOI using the"Tentative
Draft" Order No. 2011-XXXX-DWQ form as soon as possible for two reasons. The first is
that the court injunction that suspended the requirement to obtain permit coverage will
expire on April 9, 2011. After April 9, 2011, any vector control entity that does not have
coverage will be prohibited from applying any pesticide to local water bodies. The second
is that Order No. 2011-XXXX-DWQ requires that Board staff post submitted NOls on the
Board's webpage for a 30-day comment period before permit coverage can be granted.
The Board has agreed to provide temporary coverage to any vector control agency until the
end of April 2011 as long as the vector control agency has submitted a complete NOI. In
order to meet the 30 day posting requirement, a vector control agency would need to have
its NOI submitted by the end of March 2011.
An explanation of the pesticides, bacterial insecticides, larvicides and surfactants used
along with their treatment methods is contained in the Pesticide Application Plan
(Attachment 1).
FISCAL IMPACT
The current annual NOI fee is $136. It should be noted that Board staff have discussed
the potential for the fee to increase to$1,200 for FY 2011/12. Participation in the MVCAC
monitoring program is estimated to be an annual fee of $350, which is significantly less
expensive than if the City were to establish its own monitoring program. The Moorpark
Vector Control Division has sufficient funds budgeted for these expenses, including the
potential $1,200 increase.
STAFF RECOMMENDATION
1. Approve the Pesticide Application Plan
2. Authorize the City Manager to sign and submit the Notice of Intent for coverage
under Order No. 2011-XXXX-DWQ.
Attachments:
1. Pesticide Application Plan
2. Notice of Intent
S\Public Works\Everyone\Reports\Staff Reports\2011Wlarch\03-16-2011(Vector Control NPDES Permit)doc
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Attachment 1
The City of Moorpark Vector Control Division
Pesticide Application Plan
Best Management Practices and Monitoring Plan
FOR WATER QUALITY ORDER NO 2011-XXXX-DWQ STATEWIDE GENERAL
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
PERMIT FOR BIOLOGICAL AND RESIDUAL PESTICIDE DISCHARGES TO
WATERS OF THE UNITED STATES FROM VECTOR CONTROL
APPLICATIONS(GENERAL PERMIT) NO. CAGXXXXXX
Background
The City of Moorpark Vector Control Division (Division), within the jurisdiction of the
Region 4 Water Quality Control Board, is seeking coverage under the General Permit
as a public entity that applies aquatic pesticides for vector control to waters of the
United States.
According to the California State Water Quality Control Board's document "California
Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed
Bays, and Estuaries of California"
(http://www.waterboards.ca.gov/water issues/programs/state implementation policy/do
cs/final.pdf), the District may receive an exception from meeting the priority pollutant
criteria/objectives of the document from the Regional Water Quality Control Board
(RWQCB) if it:
1. complies with the California Environmental Quality Act (CEQA)
2. is necessary for resource or pest management i.e., vector or weed control,
pest eradication, or fishery management
The statutory mandates that govern how the Division operates are found in the
California Health and Safety Code (Sec 2000-2007, 2040-2060).
Extensive research has indicated that the pesticides applied directly to water to kill
mosquito larvae have little or no lasting environmental impact. Bacillus thuringiensis
var. israelensis, B. sphaericus, s-methoprene, and surfactants degrade rapidly in the
environment, leaving negligible residue. When integrated with other strategies, e.g.,
managing habitat and using mosquitofish, these aquatic pesticides are part of effective
best management practices (BMPs).
As required by the General Permit we present and discuss our BMPs and monitoring
plan. The Division uses environmentally safe practices to control vectors and
minimize impact to non-target organisms. Aquatic pesticides are applied at rates
that do not alter the physical parameters of the environment, i.e., temperature, salinity,
247
turbidity, and pH. This monitoring plan presents and justifies exemptions to
requirements of the General Permit.
Division Boundaries and Target Areas
The Division is bound by the Moorpark city limits within the county of Ventura (Figure 1
attached). Any site that holds water for more than 96 hours (4 days) can produce
mosquitoes. Source reduction is the Division's preferred solution; whenever possible,
the Division works with property owners to effect long-term solutions to reduce or
eliminate the need for continued applications as described in Best Management
Practices for Mosquito Control in California. The typical sources treated by this
Division:
1. Any and all navigable waters within the City of Moorpark that breed mosquitoes.
2. Flood control channels, basins, freeway drains, storm drains and any other
conveyance for water runoff in an urban/suburban area.
3. Roadside low-spots, backyard ponds and pools.
Best Management Practices
The Division was originally formed pursuant to the California Health and Safety Code in
1960 as the Moorpark Mosquito Abatement to help control flies and mosquitoes
produced by numerous egg ranches in the Moorpark area and the district and its
mosquito control program were absorbed by the City of Moorpark in 1997 with major
emphasis on controlling and monitoring mosquitoes and the potential diseases they can
spread such as the West Nile Virus (WNV). The Division is indirectly regulated by the
Department of Pesticide Regulation (DPR) through a cooperative agreement between
the Division and the California Department of Public Health (CDPH).
Division personnel who apply pesticides are licensed by the CDPH and pesticide use is
reported to the Ventura County Agricultural Commissioner (CAC) according to an
annual Memorandum of Understanding among the DPR, CDPH, and CAC, and vector
control agencies pursuant to Health and Safety Code Section 116180. The CAC conducts
routine inspections of the Division to ensure we are complying with the provisions of the
cooperative agreement. Applicators are required to complete pesticide training yearly as
part of a two year continuing education cycle.
Division staff monitors application equipment on a daily basis to ensure it remains in
proper working order. Spill mitigation devices are placed in all spray vehicles and
pesticide storage areas to respond to spills. Vehicles normally carry less than five
gallons of liquid larvicide and less than 40 pounds of granular larvicides. Employees are
trained on spill prevention and response annually and how to report a potential spill. All
spray equipment is calibrated each year and is a part of the MOU with CDPH to help
ensure minimal and consistent use of larvicides.
Moorpark Vector Control PAP
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The US Environmental Protection Agency (USEPA) and DPR require that aquatic
pesticides undergo tests for toxicity and meet specific requirements before the pesticide
is registered for application to surface waters. The USEPA has found that applying
properly registered aquatic pesticides does not threaten people and the environment.
The effects of these pesticides on water quality will be mitigated by complying with the
requirements of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), using
BMPs, and monitoring.
The Division's best management practices are based on integrated vector management
(IVM) strategies. The components of the programs are:
1. Public education
2. Surveillance of vector populations
3. Disease surveillance
4. Determining thresholds
5. Selecting control method(s)
6. Training and certifying applicators
1. Public Education
Division staff utilizes various outreach techniques to reach residents, gain
cooperation, and change behavior so the risk of mosquito-transmitted
disease is reduced. Many behavioral elements such as maintaining
properties to eliminate standing water, reducing urban runoff, and
preventing trash accumulation in natural areas can reduce the need to
apply public health pesticides. To ensure the widest reach, multilingual
(English/Spanish) methodologies ranging from direct contact to large scale
media campaigns are used.
A. School Programs:
Presentations, classroom loan/study materials, curricula, are
available to all public and private school teachers and students.
B. Community Outreach:
Information and programs are provided to local civic groups,
community service groups, homeowner associations, local
businesses, and at community safety/health fairs, senior centers and
others.
C. Media Outreach:
Residents are kept informed through local and regional media
outreach via press releases, press conferences, and local and
regional media campaigns including public service announcements
and paid media advertising.
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2. Surveillance of Vector Populations
Surveillance limits pesticide use to areas where mosquito populations may
affect public health. The thirteen (13) species of mosquitoes known within
the City (Table 1) differ in their biology, susceptibility to larvicides, and
ability to create nuisances and transmit disease. Information on the
species, density, and stages present is used to select an appropriate control
strategy based on integrated vector management.
A. Larval Surveillance:
Vector Control Technicians are assigned to zones within the
Division. They maintain a database of sites which are known to
produce mosquitoes and inspect them regularly. They also search
continuously for new sources of standing water and mosquitoes.
Treatments are based on the abundance, species, and stage of
mosquitoes present.
B. Adult Mosquito Surveillance:
Populations of adult mosquitoes are also sampled by trapping and
tested for infections with viruses that can be transmitted to humans.
The spatial and seasonal abundance of adult mosquitoes is
monitored and compared to historical data. Control operations are
concentrated in areas where adult populations are above seasonal
averages and/or where disease activity has been identified.
C. Service Requests:
Reports of standing water, i.e., neglected pools or mosquitoes from
residents allow the Division to gauge the success of control efforts
and locate new sources of mosquitoes. When requests for service are
received, Vector Control Technicians visit the area, interview
residents, and search for sources of mosquitoes.
3. Disease Surveillance
A. Adult mosquitoes, birds, and strategically placed flocks of chickens
(sentinel chickens) are tested regularly for infections with mosquito-
bome viruses. Control operations are concentrated in areas where
the risk for human disease is elevated.
B. The Division works with the California Department of Public Health
(CDPH), the Mosquito and Vector Control Association of California
(MVCAC) and other Vector Control agencies and health
departments in Ventura County and Southern California to keep
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abreast of trends in arthropod-borne diseases and share information.
The Division increases control and surveillance activities when
elevated risk or incidence of disease is detected in its jurisdiction.
4. Determining Thresholds
Thresholds are established so that only sources which represent threats
to public health or quality of life are treated. They are based on the
following criteria:
- Species of mosquito present
- Stage of mosquito present
- Nuisance or disease potential
- Abundance
- Flight range
- Proximity to humans
- Size of source
- Presence/absence of natural predators
- Presence of sensitive/endangered species
Current and historic data are compared and control measures are based
on whether conditions pose a risk to public health.
The Division also uses the California Department of Public Health
California's Best Management Practices for Mosquito Control in California
2010 and the Mosquito-Borne Virus Surveillance and Response Plan as
guides for control methods and to assess the potential for human illness and
determine control strategy: They can be found at the following websites:
http://www.cdph.ca.gov/Healthlnfo/discond/Pages/MosquitoBorneDisease
s.as x and
http://www.westnile.ca.gov/resources.php. Copies may be also requested
by calling the California Department of Public Health—Vector-Borne
Disease Section at (916) 552-9730 or the City of Moorpark Vector Control
Division at (805) 517- 6267.
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5. Selecting Control Methods
With any mosquito or other vector source, the Division's primary goal is to
look for ways to eliminate the source, or, if that is not possible, for ways to
reduce the vector potential. Listed below are the methods utilized by the
Division. A control method is selected which is anticipated to minimize
environmental impacts while maximizing efficacy. Methods of control are
based on:
- Habitat type
- Water conditions and quality
- Weather conditions
- Cost
- Site accessibility
- Size and number of sites
A. Source Reduction
Source reduction includes elements such as physical control,
habitat manipulation, and water management.
1. Physical Control
Mosquitoes can be controlled by physically altering their habitat, so
long as the physical alteration does not affect the native landscape
as it was naturally designed to function. This long-term solution
reduces or eliminates sites where mosquitoes develop and
ultimately reduces the need to apply pesticides.
The District usually cooperates with other agencies, e.g., Ventura
County Watershed Protection District to conduct activities which can
include:
- Sediment removal from flood control channels
- Repairs to existing water control structures
- Removing debris, weeds and vegetation from natural
waterways
- Clear brush from margins of waterways
- Limit or rotate flow for ground water recharge
The Division makes a concerted effort to establish relationships with
organizations that propose new projects such as wetland restoration
so sources of vectors are not created or provisions are made to
control them in the future.
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2. Biological control
Fish, aquatic invertebrates, and pathogens all prey on mosquito
larvae. Only mosquitofish can be reared in sufficient quantity to use
as a control agent. Natural predators are rarely numerous enough to
control mosquito larvae. Biological control agents are sometimes
used together with bacterial or chemical insecticides.
i. Mosquitofish (Gambusia affinis)
Mosquitofish (Gambusia afFnis) are used worldwide as a
biological control agent for mosquitoes. They are not native to
California, but are now ubiquitous in most of the State's
waterways and have become an integral part of the aquatic
food chain.
Mosquitofish self-propagate, have a high reproductive
potential, and thrive in the shallow, vegetated waters
preferred by many species of mosquitoes. They prefer to feed
at the surface where mosquito larvae concentrate. These
fish can be readily mass-reared or collected from sources
and redistributed.
In many cases, mosquitofish are preferable to habitat
modification or pesticides, particularly in altered or artificial
aquatic habitats. The Division distributes them to the public for
ornamental ponds and other artificial containers like water
barrels and horse troughs but does not place mosquitofish into
waters of the U.S.
ii. Aquatic Invertebrates
Aquatic invertebrates, including diving beetles,
dragonfly and damselfly naiads, backswimmers, water
bugs and hydra are natural predators of mosquito larvae.
When natural predators are sufficiently abundant, additional
measures to control mosquitoes, including applying pesticides
may be unnecessary.
Predatory aquatic invertebrates however are often not
abundant enough to control mosquito larvae, particularly in
disturbed habitats. Most are general feeders and will seek
other prey if it is available and more accessible. Seasonal
abundance and developmental rates often lag behind
mosquito populations. There are currently no suitable mass-
rearing techniques or commercial sources for aquatic
invertebrates.
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B. Bacterial Insecticides
Bacterial insecticides contain naturally produced proteins. They are
toxic to mosquito larvae when ingested in sufficient quantity. Although
they are biological agents, these products are labeled and registered by
the USEPA as pesticides.
1. Bacillus thuringiensis var. israelensis (Bti)
Product names: Vectobac® 12AS, Vectobac®G, VectobaeTP
Bacillus thuringiensis var. israelensis (Bti) is highly target-
specific and has significant effects on mosquito larvae and
closely related insects, i.e., blackflies and some midges. It is
available in a variety of formulations (liquid, granular, and pellet)
so it can be applied by various methods and equipment. Bti has
no measurable toxicity to vertebrates. The hazard classification
on the label of Bti is "CAUTION". Btfs insecticidal properties
come from a combination of five different proteins. They have
varying modes of action and act synergistically so resistance
has not developed.
Mosquito larvae must ingest Bti for it to be effective. Pupae and
late 4th stage larvae do not feed and cannot be controlled by Bti.
Low water temperature inhibits larval feeding behavior so Bti is
less effective in cooler weather. High organic conditions also
reduce the effectiveness of Bti.
Bti leaves no residues, begins to degrade within 24 hours after it
is applied, and is unlikely to affect water quality. There are no
established standards, tolerances or USEPA-approved tests.
Other strains of Bacillus thuringiensis occur naturally and are
common in aquatic habitats.
2) Bacillus sphaericus (Bs)
Product names: Vectolex® CG, Vectolex®WDG, Vectolex®WSP
Bacillus sphaericus (Bs) is a bacterial pesticide with attributes
similar to Bti but it is more effective in water with a high
organic content. It may actually cycle in habitats containing
high densities of mosquitoes, reducing the need for repeated
applications. The hazard classification on the label of Bs is
"CAUTION".
Bacillus sphaericus must be consumed by mosquito larvae and is
therefore not effective against late 4th instar larvae or pupae. It
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is also ineffective against certain mosquito species. Bs is toxic
to mosquitoes because of a single toxin rather than the complex
that is produced by Bti. Consequently, resistance to Bs has
developed much more quickly.
Surveillance on the stage and species of mosquitoes present
increases the effectiveness of Bs. Resistance can be delayed
by rotating Bs with other pesticides.
Bacillus sphaericus occurs naturally and is environmentally
safe. It leaves no residues. At the application rates used in
mosquito control programs, Bs is unlikely to affect water quality.
There are no established standards, tolerances or EPA approved
tests.
C. Chemical Control
1. S-Methoprene
Product Names: Altosid® briquettes, Altosid® liquid larvicide,
Altosid® pellets, Altosid®SBG, Altosid®XR briquettes, Altosid®XRG
S-methoprene is a larvicide that mimics an insect growth hormone
and prevents mosquitoes from becoming biting adults. It can be
applied as liquid or solid or combined with Bti or Bs. S-methoprene
is an effective component of an integrated management program
since larvae survive as prey and remain in the food web. This
material degrades quickly in sunlight and when applied as a liquid it
is effective for three to five days. S-methoprene is also added into
inert, charcoal-based carriers such as pellets and briquettes so it can
be time-released for up to 150 days. Different formulations provide
options for treatment in a wide range of environmental conditions.
S-methoprene is not toxic to vertebrates and most invertebrates
when exposed at concentrations used by mosquito control.
S-methoprene is only effective against mosquito larvae. Monitoring
its effectiveness is difficult since larvae do not die. S-methoprene is
more expensive than most larvicides.
Surveillance and monitoring provides information on stages of
mosquitoes present, timing of applications, and efficacy of
treatments. S-methoprene does not have a significant impact on
water quality. It is rapidly degraded in the environment and is not
known to have persistent or toxic breakdown products. The hazard
classification on the label of s-methoprene is "CAUTION". It is
applied at levels far below those that can be detected by any
currently available test. S-methoprene has been approved by the
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World Health Organization for use in drinking water containers.
2. Surfactants
Product Names: GB-1111, Agnique® MMF
Surfactants are either petroleum (GB-1111) or alcohol (Agniquell")-
based materials that form a thin layer on the surface of water.
They kill surface-breathing insects by mechanically blocking their
respiratory mechanism.
Surfactants are the only materials that kill mosquito pupae.
Agnique®MMF forms an invisible monomolecular film. The material
spreads across the water surface and into inaccessible areas. GB-
1111 is a refined petroleum product that forms a visible film on the
water. It is normally evaporates in 24-48 hours. The hazard
classification on the label of GB-1111 and AGNIQUE® MMF is
"CAUTION". AGNIQUE® MMF is labeled "safe for use" in drinking
water.
The action of surfactants is indiscriminate. Surface-breathing natural
predators of mosquitoes may be affected. In general, surfactants
are used only after other control strategies have been ruled out.
D. Cultural Practices
Stormwater BMP and wetland design/maintenance criteria have
been developed and adopted by City of Moorpark staff using BMP
guidelines developed by the CDPH and other agencies. These
criteria are shared with various governmental agencies and private
parties involved in the planning process for projects having the
potential to create mosquito breeding problems. Guidelines for the
following source types are included and are considered cultural
control techniques:
• Drainage construction and maintenance practices
• Dredge material disposal sites
• Irrigated pastures
• Permanent ponds used as waterfowl habitat
• Permanent water impoundments
• Marshes
• Sedimentation ponds and retention basins
• Utility construction practices
• Above and below ground stormwater treatment practices
The Division also provides literature and educates homeowners and
contractors about eliminating sources that produce mosquitoes from
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residential property. These sources include rain gutters, artificial
containers, ornamental ponds, abandoned swimming pools, tree
holes, septic tanks, and other impounded waters.
1. Water Management
Water Management consists of techniques to control the
timing, quantity, and flow of water in managed wetlands to
control populations of mosquitoes. The Division has
established guidelines for water management based on
information from the University of California Agricultural
Extension Service (UCAES). The District provides these
guidelines to property owners to promote proper irrigation
techniques for wetlands to reduce mosquito populations.
2 Vegetation Management
Removing vegetation helps water circulate and increases
access for natural predators; both help reduce mosquito
breeding. Vegetation management is achieved almost entirely
through cooperative efforts of property owners. Vector
Control Technicians rarely use hand tools.
Vegetation protects mosquito larvae and adults from
predators, wind, and wave action. Managing vegetation
enhances the effects of these factors and reduces the need
for pesticides. Several factors can limit vegetation
management including: sensitivity of the habitat, presence of
special status species, seasonality, size of the site, density
and type of vegetation, species of mosquito, and weather.
6. TRAINING AND CERTIFICATION
The CDPH Vector-Borne Disease Section certifies, tests, and trains all staff
who either apply pesticides or oversee the application of pesticides. The
MVCAC provides training materials and examinations are conducted by
the CDPH.
Certified staff must obtain continuing education units (CEUs) in Laws and
Regulations (12 units) and Mosquito Biology (8 units) every two years.
Eight units each in Terrestrial Invertebrate and Vertebrate Control are
optional each two-year cycle.
The MVCAC provides opportunities to earn CEUs. Training programs
are approved by the CDPH. The Division conducts continuous in-house
educational and safety programs.
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Members of the MVCAC operate under the California Health and Safety
Code and the California Government Code (Division 1, Administration of
Public Health, Chapter 2, Powers and Duties; also Part 2, Local
Administration, Chapter 8, State Aid for Local Health Administration;
Division 3, Pest Abatement, Chapter 5, Mosquito Abatement Districts or
Vector Control Districts, Sections 2000 - 2910). Members of the MVCAC
that are signatories to the California Department of Public Health
Cooperative Agreement pursuant to Section 116180, Health and Safety
Code) are required to comply with the following:
1) Calibrate all application equipment using acceptable techniques before
using, and to maintain calibration records for review by the County
Agricultural Commissioner.
2) Calibrate at least annually all equipment used by the Division.
3) Maintain copies of calibration records at the Division.
4) Maintain for at least two years for review by the County Agricultural
Commissioner a record of each pesticide application showing the target
vector, the speck location treated, the size of the source, the
formulations and amount of pesticide used, the method and equipment
used, the type of habitat treated, the date of the application, and the
name of the applicator(s).
5) Submit to the County Agricultural Commissioner each month a
Pesticide Use Report on Department of Pesticide Regulation form
PR-ENF-010. The report shall include the manufacturer and product
name, the registration number from the label, the amount of each
pesticide, the number of applications of each pesticide, and the total
number of applications, per county, per month.
6) Report to the County Agricultural Commissioner and the Department of
Health Services any conspicuous or suspected adverse effects from
applications of pesticides on humans, domestic animals and other non-
target organisms, or property.
7) Require employees to be properly certified by the CDPH to apply
pesticides to control vectors, and maintain records that document
certified employees receive a minimum of 20 hours of continuing
education hours every two years.
8) Receive regular inspections by the County Agricultural Commissioner to
ensure compliance with state laws and regulations relating to pesticide
use.
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9) A website where public notices, required in Section VIII.B, may be
found at : http://www.ci.moorpark.ca.us
The Division also complies with the requirements of other agencies, e.g.,
local fire departments, California Department of Fish and Game, U.S. Fish
and Wildlife Service, U.S. Army Corps of Engineers, and others who have
jurisdiction and oversight over its activities. The Division works closely with
these agencies to comply with their requirements.
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Monitoring Plan for the City of Moorpark Vector Control Division
Introduction
The Division is within the jurisdiction of the Region 4 Water Quality Control Board
(RWQCB) and is seeking coverage under the General Permit for discharges of aquatic
pesticides to waters of the U.S.
This monitoring plan consists of ongoing best management practices (BMPs), record-
keeping, and reporting. Records shall be kept of all pesticide applications made to
waters of the U.S. by Division staff and/or contractors. These records shall include the
site, material, concentration, quantity applied, habitat type, approximate water surface
area, and the date and time for each application. The Division shall report annually to
the RWQCB on its aquatic pesticide applications, summarizing the recorded data to
indicate the quantity of each pesticide active ingredient applied to each habitat type
within the zone of the Division that drains to each major final receiving body. If any
non-standard larvicides or herbicides are required, the RWQCB will be promptly
notified so a supplemental monitoring plan can be developed.
The State Water Resources Control Board (SWRCB)'s General Permit provides that
monitoring exemptions may be appropriate for vector control projects involving microbial
larvicides, thin film larvicides and methoprene. The Division is a current member of the
Mosquito and Vector Association of California (MVCAC) in which all member agencies
participate in a monitoring program approved for monitoring all mosquito control
larvicides. This document is in development and will be available when completed at
http://www.mvcac.org. Copies may be also requested by calling the Division (805) 517-
6267.
In order to ensure that the most environmentally sensitive methods are being employed
the Division will annually review its BMPs to incorporate new practices and less toxic
methods and materials as they become available. Changes or revisions to BMPs will be
reported annually.
Types of Sources Treated
The Division's main effort at controlling mosquito larvae allows it to localize treatments
and use the least toxic alternatives. Adult mosquitoes may occasionally be targeted for
control. However, since pesticides must be applied over a greater area and are less
selective the Division avoids using them whenever possible.
There are 13 species of mosquitoes that can potentially be found within Moorpark's
limits, (Table 1) that are distributed variably and develop in several types of sources.
Mosquitoes generally cannot survive in water that flows substantially or has a
disturbed surface. Species are distributed based on their tolerance to salinity, degree
of organic pollution, and temperature.
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Climate and Seasonality
Most of the precipitation in Ventura County falls from November through May, and
summer temperatures can exceed 100°F. The weather and seasonal patterns of rainfall
and temperature influence how mosquitoes are distributed and thus how and when
pesticides are applied. For example, waterways that flow during winter are usually
treated in summer after the flow has receded. Similarly, mosquitoes are generally
flushed out of storm drains during winter so these sources are typically treated only
during the summer months.
Aquatic Pesticides and Assessment of Potential Impacts
The Division uses aquatic pesticides which fall into the three categories: bacterial,
chemical, and surfactants. Table 2 summarizes the amount of these products applied
annually by the Division.
A. Bacterial Larvicides
Bacterial larvicides contain proteins within spores of bacteriae that are toxic to
mosquito larvae when ingested in sufficient quantities. These products are labeled
and registered by the USEPA as pesticides and are considered chemical control
agents despite originating from natural sources.
1. Bacillus thuringiensis var. israelensis (Bb)
Advantages: Bti is highly target-specific and significantly affects larvae of
mosquitoes and closely related insects such as blackflies and midges. It
is available in a variety of formulations (liquid, granular, and pellet) so it
can be applied by a variety of methods and equipment. Bti has no
measurable toxicity to vertebrates and is classified by USEPA as
"Practically Non-Toxic". Bti formulations contain a combination of five
different proteins within a larger crystal. These proteins have varying
modes of action and act synergistically so the likelihood is remote that
mosquito populations will become resistant.
Disadvantages: Bacterial larvicides must be ingested in sufficient
quantities to be effective. Pupae and late 4th stage larvae do not feed and
cannot be controlled by Bti. Low water temperature inhibits larval feeding
behavior, reducing the effectiveness of Bti during cooler months. Water
with high concentrations of organic material reduces the effectiveness of
Bti.
Solutions to Disadvantages: Increasing the frequency of surveillance for
larvae can ensure that bacterial insecticides are applied during the
appropriate stages of development.
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Impact on water quality: Bti is generally regarded as environmentally
safe. Strains of Bacillus thuringiensis occur naturally in aquatic habitats.
Bti leaves no residues and degrades quickly. At the application rates used
in mosquito control programs; this product is unlikely to have any
measurable effect on water quality. There are no established standards,
tolerances or USEPA approved tests for Bti.
Product names: Acrobe®, Bactimos® pellets, Teknar° HP-ID, Vectobac®
12AS, Vectobac®G, Vectobac®TP.
Formulations and dosages There are five basic Bti formulations
available: liquids, powders, granules, pellets, and briquettes. Liquids are
produced from a concentrate with a particle size of 2-10 microns which are
suitable for mosquito larvae to ingest.
The particle size of powders is not always uniform. Clumping can cause
particles to settle and prevent larvae from ingesting the material. Powders
must be mixed with water before they are applied. Bti granules, pellets,
and briquettes are formulated from Bti primary powders and an inert
carrier. The hazard classification on the label of Bti is "CAUTION".
Bti is applied by the Division as a liquid or sometimes bonded to an inert
substrate, e.g., corn cob granules, to assist penetrating vegetation. Bti can
be applied by hand, all terrain vehicle (ATV), or aircraft and persists in the
environment for three to five days. Mosquitoes are usually killed within
48 hours after they ingest Bti.
Currently three commercial brands of Bti liquids are available: Aquabac®
XT, Teknar® HP-D, and Vectobac® 12AS. Labels for all three products
recommend using 4 to 16 fl oz/Acre in unpolluted, low organic water with
low populations of early instar. The Aquabac® XT and Vectobac® 12 AS
labels also recommend increasing the rate from 16 to 32 fl oz/A when late
3`d or early 4th instar larvae predominate, larval populations are high, water
is heavily polluted, and/or algae are abundant. The recommendation to
increase dosages in these instances also is seen in various combinations
on the labels for all other Bti formulations discussed below.
Bti liquid may also be combined with s-methoprene liquid which allows the
Division to use less of each product.
There are currently two popular corncob 9_ranule sizes used in commercial
formulations. Aquabac° 200 G, Bactimos G, and Vectobac® G are made
with 5/8 grit crushed cob, whereas Aquabac® 200 CG (Custom Granules)
and Vectobac® CG are made with 10/14 grit cob. Aquabac® 200 CG is
available by special request. The 5/8 grit is much larger and contains fewer
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granules per pound. The current labels on Bti granules recommend using
2.5 to 10 lb./acre in "cleaner" water and 10 to 20 lb./acre in 'organic" or
polluted waters.
2. Bacillus sphaericus (Bs)
Advantages: Bacillus sphaericus (Bs) is a bacterial pesticide with
attributes similar to those of Bti. The efficacy of this bacterium is not affected
by organic pollution in water. It may establish a natural cycle in habitats with
high density of mosquitoes so fewer applications are needed.
Disadvantages: Bs must be consumed and is not effective against late 4th
instar larvae or pupae. Bs is also ineffective against species of
mosquitoes that develop in salt marshes, seasonal forest pools, or tree
holes. Bs is toxic to mosquitoes because of a single toxin rather than a
complex as with Bti. This more simplistic mechanism makes it easier for
mosquitoes to develop resistance, which has been reported in Brazil,
Thailand and France where Bs was used as the sole control method for
extended periods of time.
Solutions to Disadvantages: Information obtained from larval
surveillance can help limit its use to sources with susceptible mosquitoes.
The development of resistance can be delayed by rotating Bs with other
larvicides.
Impact on water quality: At the application rates used in mosquito
control programs, Bs is unlikely to have any measurable effect on water
quality. It is a naturally occurring bacterium that is present in most aquatic
environments. There are no established standards, tolerances or EPA
approved tests for Bs.
Product names: Vectolex® CG, Vectolex®WDG
Formulations and dosages Vectolex® CG contains 50 BSITU/mg
(Bacillus sphaericus International Toxic Units/mg) on a 10/14 mesh ground
corn cob carrier. The hazard classification on the label of Vectolex® CG is
"CAUTION". It is intended for use in polluted or highly organic source of
mosquito larvae such as dairy waste lagoons, sewage lagoons, septic
ditches, tires, and storm sewer catch basins. Vectolex®-CG is designed to
be applied by hand or truck-mounted blower or aerially at 5-10 lb/acre
to control 1 st to 3rd instar larvae.
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3. Combined Formulations Bacillus sphaericus (Bs) and Bacillus
thuringiensis var. israelensis (Bti)
Advantages: Bti and Bs mixtures are highly target-specific and significantly
affects larvae of mosquitoes and closely related insects such as blackflies
and midges. It is available in a variety of formulations (liquid, granular, and
pellet) so it can be applied by a variety of methods and equipment. BhlBs
has no measurable toxicity to vertebrates and is classified by USEPA as
"Practically Non-Toxic". BhBs formulations contain numerous combinations
of different proteins within a larger crystals. These proteins have varying
modes of action and act synergistically so the likelihood is remote that
mosquito populations will become resistant.
Disadvantages: Bacterial larvicides must be ingested in sufficient
quantities to be effective. Pupae and late 4 c stage larvae do not feed and
cannot be controlled by Bti/Bs. Low water temperature inhibits larval
feeding behavior, reducing the effectiveness of BhBs during cooler
months.
Impact on water quality: At the application rates used in mosquito
control programs, Bti/Bs is unlikely to have any measurable effect on water
quality. It is a naturally occurring bacterium that is present in most aquatic
environments. There are no established standards, tolerances or EPA
approved tests for Bti/Bs.
Product names: Vectomax® G, Vectomax® CG, Vectomax®WSP
Formulations and dosages Vectomax® G, Vectomax® CG and
Vectomax® WSP all contain 2.7% Bacillus sphaericus and 4.5% Bacillus
thuringiensis. The hazard classification on the label of all Vectomax
formulations is "CAUTION". It is intended for use in a wide variety of
mosquito larvae habitats including those that contain fish, other aquatic life
and plants, birds, mammals and other wildlife.
B. Chemical Pesticides
S-Methoprene
Advantages: S-methoprene is a larvicide that mimics a growth regulator of
insects. It can be applied as a liquid or solid or combined with Bti or Bs. S-
methoprene is effective in integrated vector management strategies since
larvae remain available as prey. It breaks down quickly in sunlight and in a
liquid formulation is effective for only 24 hours. S-methoprene can be
impregnated into charcoal-based carriers such as pellets and briquettes
for longer residual activity ranging from 30 to 150 days. The different
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264
formulations provide options for treatment under a wide range of
environmental conditions. S-methoprene is nontoxic to all vertebrates and
most invertebrates at concentrations used to control mosquitoes.
Disadvantages: S-methoprene is effective against mosquito larvae.
Monitoring for effectiveness is difficult since mortality is delayed. S-
methoprene is more expensive than most other larvicides and cannot
control mosquito pupae.
Solutions to Disadvantages: Surveillance and monitoring can determine
which stage of mosquito larvae are present so that applications can
be timed to maximize their efficacy.
Impact on Water Quality: S-methoprene does not significantly impact
water quality. It is effective against mosquitoes at levels that cannot be
detected by any currently available test. Studies on non-target organisms
have shown that methoprene is non-toxic to all vertebrates and most
invertebrates when exposed to concentrations used to control mosquitoes.
Product Names: Altosid® Liquid Larvicide, Altosid® Single Brood Granule,
Altosid® Pellets, Altosid® Briquettes, Altosid® XR Extended Release
Briquettes
Formulations and dosages: S-methoprene has a half-life of about 48
hours in water and plants and ten days in soil. Various formulations
maintain an effective level of active material (0.5-3.0 parts per billion) in
the mosquito habitat which minimizes the cost and impact of repeated
applications. Currently, five formulations of s-methoprene are sold under the
trade name of Altosid®: Altosid® Liquid Larvicide (ALL) and Altosid® Liquid
Larvicide Concentrate, Altosid® Briquettes, Altosid® XR Briquettes, and
Altosid® Pellets. The hazard classification on the label of s-methoprene is
"CAUTION".
Altosid® Liquid Larvicide (ALL) & ALL Concentrate are microencapsulated
liquid formulations that differ in their concentrations of active ingredients
(Al). ALL contains 5% s-methoprene; ALL Concentrate contains 20% s-
methoprene. Inert ingredients encapsulate the s-methoprene which
allows it to be released slowly and prevents it from being degraded
by ultraviolet light.
The maximum rate that can be applied is 0.0125 lb. Al (4 fl oz ALL and 1 fl
oz ALL Concentrate per A mixed in water and dispensed by spraying with
conventional ground and aerial equipment). In sites with a mean depth of
one foot, this is equivalent to a maximum concentration of 4.8 ppb. The
actual concentration is substantially lower because the encapsulation
does not allow the active ingredient to disperse instantly into the water.
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Cold, cloudy weather and cool water slow the release and degradation of
the active ingredient as well as the development of the mosquito larvae.
Altosid® Briquettes contain 4.125% s-methoprene (0.000458 lb.
AI/briquette, 4.125% (wt/wt)), plaster (calcium sulfate), and charcoal.
Briquettes release s-methoprene for about 30 days under normal weather
conditions. The recommended application rate is 1 briquette per 100 sq ft
in non-flowing or low-flowing water up to 2 feet deep. Typical treatment
sites may include storm drains, catch basins, ornamental ponds and
fountains, waste treatment and settlement ponds, transformer vaults,
abandoned swimming pools, and construction and other man-made
depressions.
Altosid° XR Briquettes consist of 2.1% (wt/wt) s-methoprene (0.00145 lb
AI/briquette) embedded in hard dental plaster (calcium sulfate) and
charcoal. XR Briquettes contain three times more AI as the "30-day
briquette". The harder plaster and larger size allow sustained release for up
to 150 days in normal weather. The recommended application rate is 1 to 2
briquettes per 200 sq. ft. in no- or low-flow water conditions, depending on
the target species. Many applications are similar to those with the smaller
briquettes, although the longer duration s-methoprene is released makes
this formulation economical in sources like small swamps and marshes
and beds of aquatic vegetation.
Altosid® Pellets contain 4.25% (wUwt) s-methoprene (0.04 lb. AI/lb.),
dental plaster (calcium sulfate), and charcoal in a small, hard pellet. They
slowly release s-methoprene as they erode. In normal weather, this can
occur for up to 30 days of being constantly submerged. Application rates
range from 2.5 Ibs to 10.0 lbs per A (0.1 to 0.4 lb. Al/A), depending on the
target species and/or habitat. At maximum rates, the slow release of
material means that the concentration of active ingredient in the water at
one point never exceeds a few parts per billion.
The target species are the same as those listed for the briquette and liquid
formulations. Target sites include pastures, meadows, rice fields,
freshwater swamps and marshes, salt and tidal marshes, woodland
pools, flood plains, tires and other artificial water holding containers, waste
treatment ponds, ditches, and other man-made depressions, ornamental
pond and fountains, flooded crypts, transformer vaults, abandoned
swimming pools, construction and other man-made depressions, tree holes,
storm drains, catch basins, and waste water treatment settling ponds.
Altosid° XR-G Granules contain 1.5% (wt/wt) s-methoprene. They are
designed to slowly release s-methoprene as they erode. In normal
weather, control lasts up to 21 days. Label application rates range from 5
Moorpark Vector Control PAP
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266
to 20 Ibs per A, depending on the target species and/or habitat. The
species are the same as listed for the briquette formulations. Listed target
sites include meadows, rice fields, freshwater swamps and marshes, salt
and tidal marshes, woodland pools, tires and other artificial water holding
containers, waste treatment ponds, ditches, and other natural and man-
made depressions.
C. Surfactants
Surfactants are either petroleum (GB-1111) or alcohol (Agnique® MMF)
based and form a thin layer on the water surface that kills mosquito larvae
by suffocating them.
Advantages: These are the only materials that kill mosquito pupae.
Agnique® forms a monomolecular film that is not visible. The spreading
action of the surfactant across the water surface can carry it to inaccessible
areas. Agnique® is labeled "safe for use" in drinking water.
Disadvantages to Use: Surfactants are indiscriminate, and may also
affect aquatic predators of mosquitoes if they are present. GB-1111 forms
a visible film on the water surface.
Solutions to Disadvantages: Surfactants are used when mosquito
pupae are present and when there is no other alternative available.
Product Names: GBA 111, Agnique® MMF
Formulations and dosages
GB-1111 is highly refined oil that evaporates with 24-48 hours. This material
is classified with a rating of 1 (slight) for flammability and health risk under
National Fire Protection Association (NFPA) and 0 (none) for reactivity. The
hazard classification on the label of GBA 111 is "CAUTION". It contains
99% (wt/wt) oil and 1% (wt/wt) inert ingredients. The dosage rate is 3
gallons per acre or less for clean water. Up to 5 gallons per acre may be
used when treating areas with high organic content.
GB-1111 provides effective control on a wide range of mosquito species. It
is typically applied by hand, ATV, or truck. Aerial application is possible
but not routinely done.
Agnique® MMF is the trade name for a surface film larvicide made of
ethoxylated alcohol. The hazard classification on the label of Agnique®
MMF is "CAUTION". According to the label, Agnique® MMF has very low
vertebrate toxicity; an average persistence in the environment of 5-14 days
at label application rates; and no toxic breakdown products, skin irritation,
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267
carcinogenicity, mutagenicity, or teratogenicity has been reported.
Because of its similar mode of action and effectiveness against pupae,
Agnique° can be used as an alternative to GB-1111, especially where the
temporary sheen associated with GB-1111 might be objectionable.
Assessment of Existing or Potential Impact of Pesticides Used by the
Division
Mosquito control is perpetual since the goal is to manage, not eradicate mosquito
populations. Sources of larvae are inspected continuously and treatments are
applied as necessary to maintain public health. The materials used by the Division to
control mosquitoes are applied at extremely low dosages and are not known to have
measurable impacts on water quality. The existing water quality however influences
what materials are used and how effective they are.
Physical control (manipulation of drainage, flow etc.) enhances water circulation which
directly reduces mosquito populations while improving habitat for natural predators of
mosquito larvae. Limiting the time water stands makes it impossible for mosquito larvae
to develop into adults.
The BMPs used by the Division to control mosquitoes attempt to eliminate the
impacts to water quality which NPDES permits monitor. These include:
Dissolved oxygen: Materials used in mosquito control are applied at volumes of
several ounces (s-methoprene) to less than 10 gallons (surfactants) of active
ingredient per acre. Measurable effects on dissolved oxygen at these dosage
rates are extremely unlikely.
Temperature: Materials used in mosquito control are generally applied at or near
ambient temperature; any affect on water temperature is unlikely.
pH: Materials used to control mosquito larvae are neither strongly acidic or basic.
Measurable effects on pH are unlikely.
Turbidity: Existing turbidity at a source of mosquitoes may influence which
materials are selected and how effective they are. At the application rates used
in our programs, measurable effects on turbidity are unlikely.
Hardness: Materials used in mosquito control do not have a high mineral
content. At the dosage rates used in mosquito control measurable effects on
water hardness are unlikely.
Electrical conductivity: Materials used in mosquito control do not have high
concentrations of chlorides or other ions. At the dosage rates used in mosquito
control measurable effects on conductivity are unlikely.
Pesticide residues: Materials used by Division degrade quickly in the
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268
environment. Slow-release formulations of s-methoprene are specifically
designed to be released in small amounts of active ingredient over time, and
Bacillus sphaericus may establish natural cycles under favorable conditions.
There are currently no USEPA-approved laboratories or protocols for detecting
residues of larvicides that the Division uses. Monitoring populations of mosquito
larvae (which is one of the Divisions BMPs) is the most sensitive method for
determining whether residual larvicides are present.
Evaluation of the Moorpark Vector Control Divisions Best Management Practices
(BMPs)
Pesticides are only one of the Division's BMPs that incorporate physical and
biological means to control and continuously monitor mosquito populations. Each
BMP is summarized below.
Physical Control and Water Management
Cost: High. Requires specialized equipment and expertise, and is labor
intensive.
Disadvantages: High cost; potentially disturbing habitats of endangered
species; potentially disturbing regulated wetlands; extensive permitting
process.
Solutions to Disadvantages: Require landowners to monitor and maintain
property to prevent mosquitoes from breeding.
Relative usefulness: Used whenever possible because it is a permanent
solution. Biological or chemical control is used if physical control is not
feasible or while working toward a solution based on physical control.
Biological Control
Mosquito fish
Cost: Low
Disadvantages: Non-native fish may compete with native species in
natural sources
Solutions to Disadvantages: Use only where impact to native species is
minimal
Relative usefulness: Can be effective in specific conditions, i.e., if a
source is suitable and physical or chemical control is not feasible or
applicable
Moorpark Vector Control PAP
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269
Bacterial pesticides
Bacillus sphaericus and B. thuringiensis var. israelensis
Cost: More expensive than traditional chemical pesticides but less costly
than physical control.
Disadvantages: Requires careful monitoring of mosquito populations and
knowledge of their ecology. Not effective against some species or some
stages or in some sources. Short duration of control; requires frequent re-
treatments. Relying on a single product may cause mosquitoes to become
resistant.
Solutions to Disadvantages: Surveillance of mosquitoes; appropriate
training for District staff; rotating products, investigating new materials
Relative usefulness: These agents are considered when physical control is
not acceptable and fish cannot be stocked or maintained. These agents
can be used together with fish.
Chemical Control using s-methoprene and surfactants
Cost: Less costly in the short term than physical control
Disadvantages: Requires careful monitoring of mosquito populations
and knowledge of their ecology. Not effective against some species or
some stages or in some sources. Short duration of control; requires
frequent re-treatments. Relying solely on s-methoprene may cause
mosquitoes to become resistant.
Solutions to Disadvantages: Surveillance of mosquitoes, appropriate
training for District staff, rotating products, investigating new materials
Relative usefulness: These materials are considered when physical
control is unacceptable and fish cannot be stocked or maintained. S-
methoprene and Agnique® can each be used with fish. Decisions on
whether to use these materials or bacterial pesticides are based on stage
and species of mosquitoes present, quality of water, and access.
Training and Certification
Section 116180 of the California Health and Safety Code allows CDPH to "enter into
a cooperative agreement with any local district or other public agency engaged in
the work of controlling mosquitoes, gnats, flies, other insects, rodents, or other
vectors and pests of public health importance, in areas and under terms, conditions
Moorpark Vector Control PAP
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270
and specifications as the director may prescribe."
The DIVISION annually renews its cooperative agreement with CDPH. The
Division agrees to:
1) Calibrate all application equipment using acceptable techniques before using,
and to maintain calibration records for review by the County Agricultural
Commissioner.
2) Calibrate at least annually all equipment used by the Division.
3) Maintain copies of calibration records at the Division.
4) Maintain for at least two years for review by the County Agricultural
Commissioner a record of each pesticide application showing the target
vector, the specific location treated, the size of the source, the formulations and
amount of pesticide used, the method and equipment used, the type of habitat
treated, the date of the application, and the name of the applicator(s).
5) Submit to the County Agricultural Commissioner each month a Pesticide
Use Report on Department of Pesticide Regulation form PR-ENF-010. The
report shall include the manufacturer and product name, the registration
number from the label, the amount of each pesticide, the number of
applications of each pesticide, and the total number of applications, per
county, per month.
6) Report to the County Agricultural Commissioner and the Department of Health
Services any conspicuous or suspected adverse effects upon humans,
domestic animals and other non-target organisms, or property from
pesticide applications.
7) Require employees to be properly certified by the CDPH to apply pesticides to
control vectors, and maintain records that document certified employees
receive a minimum of 20 hours of continuing education hours every two
years.
8) Receive regular inspections by the County Agricultural Commissioner to
ensure compliance with state laws and regulations relating to pesticide use.
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271
TABLE 1. Species of mosquitoes found in Ventura County and potentially in
the City of Moorpark
Aedes melanimon
Aedes sibaensis
Anopheles franciscanus
Anopheles hermsi
Culex erytfirolhorax
Culex pipiens quinquefasciatus
Culex restuans
Culex stigmatosoma
Culex tarsalis
Culex thriambus
Culiseta incidens
Culiseta inomata
Culiseta particeps
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272
TABLE 2. Annual aquatic pesticide usage by the DIVISION 2000-2010
The amount of each product used is determined by following the application directions on each product's label. All Division
vehicles carry notebooks containing all product labels and labels are also placed on application equipment such as sprayers.
The size of the area to be treated, along with factors such as organic levels, determines the amount of product used. Listed
on the table below are the total amounts (in ounces) of all mosquito larvicides the district has used over the past ten years.
I
Pesticide 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Altosid Liquid Larvicide oz. 0 0 0 0 4.15 0 4.5 0 0 0 0
Altosid Pellets oz. 0 0 0 0 0 16.5 285.95 723.9 965.1 781.49 960.75
Altosid Briquets oz. 24.25 35.21 32.82 22.51 92.11 52.3 0 0 0 4 0
A ni ue oz. 5.91 89.11 96.92 76.96 177.65 31.59 26.7 6.76 39.33 8.76 18.8
GB-1111 oz. 2861.3 1661.05 1105.5 987.34 1003.5 1163.5 1307.5 1012.5 1186.1 432.1 568.9
Vectobac 12AS oz. 0 30 0 0 10 0 3 0 0 0 0
Vectobac G oz. 1362.1 885.3 106 483.4 4122.1 507.3 231.5 94 306.5 106 297.5
Vectolex CG oz. 154 0 0 996.25 1216.6 1 329.2 11 94 288.7 0 44.8
Moorpark Vector Control PAP
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Attachment 2
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWQ
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
ATTACHMENT G — NOTICE OF INTENT
WATER QUALITY ORDER NO. 2011-XXXX-DWQ
GENERAL PERMIT NO. CAG XXXXXX
STATEWIDE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT
FOR BIOLOGICAL AND RESIDUAL PESTICIDE DISCHARGES TO WATERS OF THE
UNITED STATES
FROM VECTOR CONTROL APPLICATIONS
I. NOTICE OF INTENT STATUS(see Instructions)
Mark only one item IN A. New Applicator B. Change of Information:WDID#
El C. Change of ownership or responsibility:WDID#
II. DISCHARGER INFORMATION
A. Name
City of Moorpark
B. Mailing Address
799 Moorpark Avenue
C. City D. County E. State F. Zip Code
Moorpark Ventura CA 93021
G. Contact Person H. Email address I. Title J. Phone
Mark Westerline
mwesterline @ci . V ctor/Animal 805-517-
-
moorpark.ca.us C ntrol Speciali t 6290
III. BILLING ADDRESS(Enter Information only if different from Section If above)
A. Name
B. Mailing Address
C. City D. County E. State F. Zip Code
G. Email address H. Title I. Phone
ATTACHMENT G-NOTICE OF INTENT G-1
275
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWQ
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
IV. RECEIVING WATER INFORMATION
A. -ir:d residual pesticides discharge to check all that apply)*:
reside 9 ( PP y)*:
1. Canals, ditches, or other constructed conveyance facilities owned and controlled by Discharger.
LN Name of the conveyance system: Moorpark Storm Drain System
2. Canals, ditches, or other constructed conveyance facilities owned and controlled by an entity other than
the Discharger.
Owner's name: Ventura County Watershed Protection Di s i _
Name of the conveyance system: Walnut Canyon Storm Drain.; Drain No. 2
3. Directly to river, lake, creek, stream, bay, ocean, etc.
® Name of water body: Arroyo Simi
A map showing the affected areas for items 1 to 3 above may be included.
B. Regional Water Quality Control Board(s) where application areas are located m
(REGION 1, 2, 3, 4, 5, 6, 7, 8, or 9): Region 4 _
(List all regions where pesticide application is proposed.) z
s „ Ic."'ations of Al -A3 in each Regional Water Board shall be included. i
D
V. PESTICIDE APPLICATION INFORMATION --�
A. Target Organisms: X Vector Larvae N/A Adult Vector i
B. Pesticides Used: List lUarT�enarne, and-aActive ingredients and, if known, degradation by-products
See attached PAP, which details information for each pesticide .
C. Period of Application: Start Date April 1, 2011 End Date Annual
D. Types of Adjuvants Added by the Discharger:
See attached PAP
VI. PESTICIDES APPLICATION PLAN
A. Has a Pesticides Application Plan been prepared?'
M Yes ❑ No
If not, when will it be prepared?
A copy of the PAP shall be included with the NOI.
B. Is the applicator familiar with its contents?
IN Yes ❑ No
ATTACHMENT F—NOTICE OF INTENT G-2
276
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWO
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
VII. NOTIFICATION
Have potentially affected governmental agencies been notified?
® Yes El No
* If yes, a copy of the notifications shall be attached to the NOI.
VIII. FEE
Have you included payment of the filing fee (for first-time enrollees only) with this submittal?
13 Yes E] NO F] NA
IX. CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under my direction and
supervision in accordance with a system designed to ensure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my rT
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting
false information, including the possibility of fine or imprisonment. Additionally, I certify that the provisions of the
General Permit, including developing and implementing a monitoring program, will be complied with."
A. Printed Name: Steven Kueny
B. Signature: Date:
C. Title: City Manager
X. FOR STATE WATER BOARD USE ONLY
0
WDID: Date NOI Received: Date NOI Processed:
Case Handler's Initial: Fee Amount Received: Check#: Q
$ m
DD
ATTACHMENT F—NOTICE OF INTENT G-3
277
GENERAL NPDES PERMIT FOR 131OLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWO
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
INSTRUCTIONS FOR COMPLETING THE NOI
WATER QUALITY ORDER NO. 2011-XXXX-DWQ
GENERAL PERMIT NO. CAG XXXXXX
STATEWIDE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT
FOR AND RESIDUAL PESTICIDE DISCHARGES TO WATERS OF THE
UNITED STATES
FROM VECTOR CONTROL APPLICATIONS
These instructions are intended to help you, the Discharger, to complete the Notice of
Intent (NOI) form for the Statewide General National Pollutant Discharge Elimination
System (NPDES) permit. Please type or print clearly when completing the NOI form.
For any field, if more space is needed, submit a supplemental letter with the NOI.
Send the completed and signed form along with the filing fee and supporting
documentation to the State Water Resources Control Board (State Water Board). --�
Section I—Notice of Intent Status rri
7
Indicate whether this request is for the first time coverage under this General Permit or a --I
change of information for the discharge already covered under this General Permit. For a >
change of information or ownership, please supply the eleven-digit Waste Discharge --r
Identification (WDID) number for the discharge. --
Section H— Discharger Information m
A. Enter the name of the Discharger.
B. Enter the street number and street name where correspondence should be sent (P.O. Box
is acceptable). Dj
C. Enter the city that applies to the mailing address given. 0
D. Enter the county that applies to the mailing address given. M
E. Enter the state that applies to the mailing address given.
F. Enter the zip code that applies to the mailing address given. Dj
G. Enter the name (first and last) of the contact person.
H. Enter the email address of the contact person.
I. Enter the contact person's title.
J. Enter the daytime telephone number of the contact person.
Section 111—Billing Address
Enter the information only if it is different from Section II above.
A. Enter the name (first and last) of the person who will be responsible for the billing.
B. Enter the street number and street name where the billing should be sent (P.O. Box is
acceptable).
C. Enter the city that applies to the billing address.
D. Enter the county that applies to the billing address.
ATTACHMENT F-NOTICE OF INTENT G-4
278
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWO
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
E. Enter the state that applies to the billing address.
F. Enter the zip code that applies to the billing address.
G. Enter the email address of the person responsible for billing.
H. Enter the title of the person responsible for billing.
I. Enter the daytime telephone number of the person responsible for billing.
Section IV—Receiving Water Information
A. Check all boxes that apply. At least one box must be checked.
1. Check this box if the application area is a canal, ditch, or other constructed conveyance
system owned and controlled by the Discharger. Print the name of the conveyance
system.
2. Check this box if the application area is a canal, ditch, or other constructed conveyance
system owned and controlled by an entity other than the Discharger. Print the name of
the owner and the name of the conveyance system..
3. Check this box if the application area is to the river, lake, creek, stream, bay, ocean, etc.
Print the name of the water body. ---�
B. List all Regional Water Board numbers where pesticide application is proposed. Regional r1M1
Water Board boundaries are defined in section 13200 of the California Water Code. The
boundaries can also be found on our website at
http://www.waterboards.ca.gov/waterboards map.shtml. The numbers with corresponding >
Regional Water Board names are given below: —i
Regional Regional Water Board Names C
Water Board m
Numbers
1 North Coast
2 San Francisco Bay
3 Central Coast J�
4 Los Angeles
5 Central Valley (Includes Sacramento, Fresno, Redding Offices) m
6 Lahontan (South Lake Tahoe, Victorville offices)
7 Colorado River Basin DJ
8 Santa Ana
9 San Diego
Section V—Pesticide Application Information
A. Check the appropriate target organism.
B. List the name and active ingredients of each pesticide to be used.
C. List the start and end date of proposed pesticide application event.
D. List the name(s) and type(s) of adjuvants added by the Discharger.
ATTACHMENT F-NOTICE OF INTENT G-5
279
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWQ
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
Section VI—Pesticides Application Plan
The Discharger must prepare and complete a Pesticides Application Plan (PAP). The
minimum contents of PAP are specified in the permit under item VIII.0 of the General
Permit. The Discharger must ensure that its applicator is familiar with the PAP contents
before pesticide application.
If a PAP is not complete at the time of application, enter the date by which it will be
completed.
Section Vll—Notification
Have you notified potentially affected governmental agencies, as required under item
VIII.B of the General Permit?
If yes, a copy of the notifications shall be attached to the NOI.
Section Vlll—Fee m
The amount of Annual fee shall be based on Category 3 discharge specified in Section
2200(b)(8) of Title 23, California Code of Regulations. Fee information can be found at
http://www.waterboards.ca.gov/resources/fees/docs/fy10 11 fee schedule.pdf >
. --�
Check the YES box if you have included payment of the annual fee. Check the NO box if <
you have not included this payment. (';'
NOTE: You will be billed annually and payment is required to continue coverage. 0
Section IX—Certification 3J
A. Print the name of the appropriate official. For a municipality, State, federal, or other public 0
agency, this would be a principal executive.officer, ranking elected official, or duly r71
authorized representative. The principal executive officer of a federal agency includes the
chief executive officer of the agency or the senior executive officer having responsibility for
the overall operations of a principal geographic unit of the agency (e.g., Regional
Administrator of USEPA).
B. The person whose name is printed above must sign and date the NOI.
C. Enter the title of the person signing the NOI.
Endangered Species Act
This General Permit does not authorize any act that results in the taking of a threatened or
endangered species or any act that is now prohibited, or becomes prohibited in the future,
under either the California Endangered Species Act (Fish and Game Code sections 2050
et. sea) or the Federal Endangered Species Act (16 U.S.C.A. sections 1531 et. sea). This
ATTACHMENT F-NOTICE OF INTENT G-6
280
GENERAL NPDES PERMIT FOR BIOLOGICAL AND RESIDUAL ORDER NO. 2011-XXXX-DWQ
PESTICIDE DISCHARGES FROM VECTOR CONTROL APPLICATIONS NPDES NO. CAGXXXXXX
General Permit requires compliance with effluent limitations, receiving water limitations,
and other requirements to protect the beneficial uses of waters of the state. The Discharger
is responsible for meeting all requirements of the applicable Endangered Species Act.
Additional information on federally-listed threatened or endangered species and federally-
designated critical habitat is available from NMFS (www.nmfs.noaa.gov) for anadromous or
marine species or FWS (www.fws.gov) for terrestrial or freshwater species.
Section 303(d) List
This General Permit does not authorize the discharge of biological and residual pesticides
or their breakdown by-products to waters of the US that are impaired by the pesticide active
ingredients included in permitted larvicides and adulticides listed in Attachments E and F.
Impaired waters are those waters not meeting Quality standards pursuant to Section 303(d)
of the CWA. California impaired waters, as approved by the State Water Board, are listed
on
http://www.waterboards.ca.gov/water issues/programs/tmdl/2010state it reports/2010 co
mbo303d.xls m
0
�j
m
ATTACHMENT F-NOTICE OF INTENT G-7
281
World English Dictionary
pending (Elp�:nd i o)
— prep
1. while waiting for or anticipating
— adj
2. not yet decided, confirmed, or finished: what are the matters
pending?
3. imminent: these developments have been pending for some time
282
CITY OF MOORPARK MOSQUITO SOURCES
Arroyo SirnVVDA
# Source Description
Al A S.#1 Section 1 East city limits to VDA stabilizing weir.
A2 No.2 Cyn.FCC(Formerly Moorpark College Between 118 and VDA by railroad tracks
FCC#2
Villa Del Arroyo#1
# Source Description
B2 VDA Entrance Gate Pond/Seepage South Drain-South side of Spring/Tierra Rejada intersection.
Southeast of flood control entrance gate,down in ravine.
B5 VDA Run Off Drain 1- In VDA Comp ex.Branch of Underground Drain by Unit#160
B6 VDA Run Off Drain 2- In VDA Com Iex.Branch of Underground Drain by Unit#61
B7 VDA Run Off Drain 3- In VDA Com Iex.Branch of Underground Drain by Unit#217
B8 VDA Run Off Drain 4- In VDA Complex.B anch of Underground Drain by Unit#
E1 VDA Clubhouse Pond- Directly South of VDA Clubhouse.Check After heavy rains
Villa Del Arroyo#2
# Source Description
D1 VDA Drain A- The farthest East drain that runs S.of the concrete leveelwalkway.
N.W.of pond D.
D2 VDA Drain B- About 300 ft.W.of Drain A.
D4 VDA Drain D- About 500 ft.W of Drain C.
D7 VDA Stabilizer Pond- Pond north of VDA Pond C,and east of stabilizer on Arroyo.
West of VDA park
D8 IVDA Stabilizer Pond West- Pond about 50 feet West of VDA stabilizer pond.
Moorpark College Area
# Source Description
G1 Pecan Ave.Gutter-
G3 Stratheam Canyon FCC(Formerly Pecan Ave FCC)- Enter through flood gate on west side of Pecan and go south
to Arroyo
G7 Happy Camp Canyon FCC(formerly Fordham FCC SouthWest of College Heights/Westwood intersection
G8 Hwy 118 North Drainage- North of 118 and south parking lot of Varsity Park Village,
between Penn and Marquette
Arroyo Simi/Condor
# Source Description
H1 AS Sec.#2 Section 2 From VDA stabilizing weir to Butler crossing
H2 Hwy 118 South Drainage- South of 118,between Teledyne Laars and Collins.
Virginia Colony/Spring
# Source Description
i1 AS Sec#3 Section 3 Butler crossing to Virginia Colony trestle
i2 Vulcan Concrete formerly Ready Mix Pond- On west side of yard at 13950 East LA Ave
i3 AS Sec#4 Section 4 Virginia Colony trestle to Ready Mix trestle
W—Castro-Williams FCC former) Calmat FCC Channel between Calmat and Riddle property
Arro o Simi East of Spring
# Source Description
J1 AS Section 5 Ready Mix trestle to New LA Ave
J2 AS Section 6 New LA Ave to Spdng Spring St bridge
J3 Cartsberg Retention Basin- South of Arroyo Simi,Section 6,and east of Spring
Carlsberg Area
# Source Description
K7 Staqecoach/Spring Retention Basin Located down in canyon between Stagecoach&Spring
K7A Sta ecoach/S ring Basin Drainage Drainage to the North of above basin.
K8 Shawnee/Crabapple Ret.Basin Located on both East and West on the South side Crabapple Ct.
K10 Shawnee Ct.West Ret.Basin#2 Located on West side of Shawnee Ct.South Basin
Peach Hill
# Source Description
L2 Peach Hill Drain (Formerly Marlborough drain)-South of Quail Summit and west of
IMill Valle
283
L3 Performance Nursery- Check drainage running north to south,and also along AS
Sec 7&8
L4 Spring St.S Pond- Pond located W.of Spring St.S.of Tierra Rejada and N.of Christian
Barrett
Arroyo Simi West of Spring
# Source Description
M1 AS Section 7 Spring St bridge to AV Pedestrian Bridge
M3 AS Section 8 AV Pedestrian Bridge to Tierra Rejada Bridge
M5 Ret.Pond#1 AS Section 7
Between Grimes&Walnut Canyon
# Source Description
200 yards west of Walnut Canyon,starts at Championship Dr and
N1 Walnut Canyon FCC- goes 3 miles until it meets Gabbert FCC,West of the Edison Station
on LA Ave.
N5 Trevino Dr.Ret Basin East of Trevino Dr and West of Golf Course Ridgeline 7th
N6 Moorpark C.C.Canyon Crest Golfcourse Canyon Crest Course Holes 1-9 and Drainage Channels.
East Course
N7 Moorpark C.C.Ridgeline Golf course Ridgeline Course Holes 1-9 and Drainage Channels.West Course
Hole 1 Seepage
N8 Moorpark C C.Creekside Golfcourse Ridgeline Course Holes 6-9 and Drainage Channels.Middle Course
N9 N Meridian Hills/Walnut C n Ret.Basin Meridian Hills tract entrance West side of Walnut C n.N Side
N10 S Meridian Hills/Walnut C n Ret.Basin Meridian Hills tract entrance W side of Walnut Cyn S Side#5187
N11 Start S of Meridian Hills at Concrete stairs leading to drainage that
Case/Walnut C n Ret.Basin&Drainage flows towards Casey Rd.
N12 Bree Glen Ret.Basin IN.W.Comer of Meridian Hills&Breezy Glen
Walnut Can on East
01 Timber Hollow Ret.Basin Moorpark Highlands tract.Ret Basin S.side of Timber Hollow
02 M k Highlands Spring/Elk Run Loop Ret.Basin 1 West Side of Spring First Ret.Basin North of Elk Run Loo
04 M k Highlands Spring/Elk Run Loop Ret.Basin 2 West Side of Spring Second Ret.Basin North of Elk Run Loo
05 M k Highlands W.Spring N Charles Ret.Basin West Side of Spring Ret.Basin North of Charles St
06 Walnut Cyn./Sprinq S.Ret.Basin S.E.comer of intersecttion of Spring and Walnut C n.
Gabbert Road Area
# Source Description
P4 Gabbert Rd FCC- Continuation of Walnut Canyon FCC;starts on west side of Gabbert
and flows southwest to Arroyo Simi
P6 Elwin St Drain- at 22837 Elwin St
P7 Darlene Ln Gutters- street qutters
P8 Darlene/Gabbert St.Drain/Channel Channel&Drain on both sides of Darlene&Gabbert Intersection
that keeps flowing Soth along the East side of Gabbert.
Downtown
# Source Description
R1 Third St.Gutters
R2 Flory St Gutters
R14 High St Theater back drain Sump Pump Drain Behind 45 High St.Theater
R15 Charles St.Gutter
Mountain Meadows North
# Source Description
Arroyo Simi West of Tierra Rejada
# Source Description
U1 AS Section 9 Tierra Rejada bridge to Gabbert drain
U2 Mtn.Meadows/A.S.Sec.#9 Drain- Drain between Northdale and A.S.Sec.#9.W.of T.R.Bridge
U3 Buttercreek Drain- South of Buttercreek St to Arroyo
U4 Boethinn Treeland Nurse - Check any standing water around compost piles
Mountain Meadows South
# Source Description
V3 Peach Hill Wash,Section 1 - West of Tierra Rejada,across from High School
to area east of end of Dalawa
V4 Peach Hill Wash Drains- Drainage gutters on both side of wash from Mtn.Trail to
Coun line.
V7 Mountain Meadows/Country Trail gutter
284