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HomeMy WebLinkAboutAGENDA REPORT 2001 0221 CC REG ITEM 10AITEM / 0• A - CITY rF - 50ORPNI? I,irf?R'�iA Of ��°1�p( ACTION: 21aW 4. s*-u5 Repo&+ nn 3/701 m R° n!�_n7 t 1rde,,r BY: �`�•� -�e�. _ — MOORPARK CITY COUNCIL AGENDA REPORT To: Honorable City Council From: Nancy Burns, Senior Management Analyst Date: February 9, 2001 (CC Meeting of February 21, 2001) Subject: CONSIDER REPORT ON THE PROGRESS OF MOUNTAIN VIEW DEVELOPMENT BY CABRILLO ECONOMIC DEVELOPMENT CORPORATION (TRACT NO. 5161, RESIDENTIAL PLANNED DEVELOPMENT NO. 98 -7) BACKGROUND A Disposition and Development Agreement (DDA) was executed July 8, 1998, for the construction of fifty -nine (59) homes on the Gisler Field site, fifteen (15) of which are to be affordable to low and very low income households. At its February 7, 2001, regular meeting, the Moorpark Redevelopment Agency received a report on the progress of this development to date and requested an update be presented at the next regular Council meeting. DISCUSSION Escrow has been opened on property the order to complete the development. advised that the seller has met all Engineer is evaluating information an the developer for addressing drainage Discharge Elimination System (NPDES) report by the City Engineer is attached STAFF RECOMMENDATION Direct staff as deemed appropriate. Attachment developer must acquire in The escrow officer has requirements. The City I materials submitted by and National Pollutant requirements. A status to this report. Q0001� * City of Moorpark MEMORANDUM February 13, 2001 To: Wayne Loftus, Director of Community Development Nancy Burns, Sr. Administrative Assistant From: Walter Brown, City Engineer Subject: Tract 5161, Cabrillo — Status, Revised with Final Map Recording Date Sight Distance at Poindexter and `A' Street (Lita Yancey Road) Bob Warren, of Ramseyer Engineering, has shown us exhibits he has prepared that shows the relocation of the north perimeter wall of the subdivision. We have not received copies of the exhibit, have not reviewed them and are unable to verify the adequacy of his proposal at this time. I anticipate they are correct and that I will be able to approve them. NPDES Compliance Mr. Warren has proposed the use of `structural — treatment control `Best Management Practices' (BMP's) consisting of proprietary filters. The final municipal storm water permit for the Ventura County, which was adopted by the Regional Board at its meeting on July 27, 2000, pursuant to Division 7 of the California Water Code. Board Order No. 00 -108, serves as the City's permit, under the National Pollutant Discharge Elimination System ( NPDES), for storm water discharges and urban runoff. Structural BMP's are required to be controlled by the City to the extent that we require that the applicant provide verification of maintenance provisions through such means as may be appropriate, including, but not limited to legal agreements, covenants, CEQA mitigation requirements and/or Conditional Use Permits. The verification must include the Cabrillo's signed statement, as part of the project application, accepting responsibility for all structural and treatment control BMP maintenance until the time the property is transferred and a signed agreement from the City. The agreement for the transfer of the streets to the City must have conditions requiring the City to assume responsibility for maintenance of any structural or treatment control BMP for that portion of the developer's property for which the City is taking responsibility. The condition of transfer must include a provision that the City conduct maintenance inspection of all structural or treatment control BMP's at least once a year and retain proof of inspection. For portions of the development where the Structural or Treatment Control BMP's are located within a common area, which will be maintained by a homeowner's association, language regarding the responsibility for maintenance shall be included in the project's conditions, covenants and restrictions (CC &R's). Printed educational materials will be required to accompany the first deed transfer to highlight the existence of the requirement and to provide information on what storm water management facilities are present, signs that maintenance is needed, how the necessary maintenance can be performed, and assistance that the co- penmittee can provide. The transfer of this information is also required with any subsequent sale of the property. If structural or treatment control BMP's are located within a public area proposed for transfer, they will b "e responsibility of the developer until they are accepted for transfer by the City. Structural or treatment control BMP's proposed for transfer 00001's Tract 5161 — Status Report must meet design standards adopted by the City for the BMP installed and must receive approval by the City prior to, and after, installation. A proposal to create an assessment district to recoup all costs included in the administration and operations required for inspecting, testing, maintaining and replacing the `Ultra Urban Filters" and the catch basins they are installed in has been fielded. The developer has neither addressed nor responded to my inquiries regarding the costs of these measures required to meet provisions of the municipal storm water permit for Ventura County. The filters proposed by the developer's engineer are manufactured by Asbury Environmental Services and are part of a design that uses replaceable proprietary materials that remove hydrocarbon liquids with a patented polymer sponge. Because they are a proprietary material designing the system to accept a substitute filter system is problematical. The filters are designed as liners to a basket that catches trash. I have received no information about these filters other than a promotional Power Point® presentation. Presently I do not have sufficient technical data that will allow me to provide an opinion regarding the cost to inspect, test, maintain and replace the BMP proposed by the developer's engineer. The Ultra Urban FiltersTM shown in the promotional Power PointTM presentation provided by the developer's engineer cannot be used in standard APWA catch basins. A specially designed catch basin will be required. In order to allow for the periodic replacement of the filters the catch basins must be designed with removable covers. I anticipate that the covers will be hot -dip galvanized steel checker plate with recessed hold -down bolt holes and stainless steel hardware. The checker plate will need to be coated with a two -part epoxy coating incorporating a fine grade of carborundum grit to provide a non -slip surface. The removable covers will be designed to carry H- 20 loads because utility maintenance vehicles and moving vans commonly mount the curbs and may drive over them. Asbury does manufacture other models of filters that may be adaptable to standard curb inlets. The developer's engineer has not provided information regarding the specific model of filter he plans to propose. Storm Water Peak Flow Mitigation The conditions of approval for the subdivision require that the developer construct improvements such that drainage will be detained on -site when the drainage amount is between the ten year and fifty year storm event. It may be possible to make a finding of substantial compliance for this condition if it can be shown that elimination of on -site detention will not increase flooding at any point in the downstream storm drainage system. The level of effort to show this to be the case is substantial. It requires a number of hydrographs for downstream locations that show that flow is not increased by failing to detain the increased flow that will result from the development of Tract 5161. Computer modeling of the watershed allows for easily generated alternative studies. Should the developer's engineer be unable to substantiate the case storm water detention will be necessary. My review of the storm water system leads me to believe that a detention basins or structures on the subdivision or adjacent park are the only feasible detention locations. Beyond generalizations, the developer's engineer has not responded to my inquiries regarding this item. Street Right -of -Way at North -east Corner of Subdivision (`A' Street) Upon review of the metes - and - bounds description, my calculations show an unacceptable error of closure in the description. I have contacted Bob Warren and he is looking into the matter. After C:',My Docurnents\Word \CAA \Tract Correspondence \Tract 5161 \2 -12 Status Report.doc Page 2 of 2 Pages Printed on 2/11'01 at 1:11 PM 00001 7 Tract 5161 — Status Report correction of the description the deed that it supports should be resigned and notarized by the seller. The description is required to be signed and sealed by the professional who prepared it. Prediction of Recordation of Final Map Recordation of the Final map is dependent on completion of the improvement plans and receipt of bonds and documents required to satisfy the conditions of approval. Presently none of those materials are being reviewed by the Engineering Department. Of the items listed in this report the storm water peak flow mitigation and NPDES compliance items will be first submittal reviews and will take up to ten days to review. It is highly likely that these submittals will need corrections and/or additional information before they can be approved. The erroneous metes - and - bounds description for the street right -of -way at northeast corner of subdivision can be easily corrected and reviewed when the developer's engineer submits the corrected information and supporting calculations. Upon receipt of complete and correct plans, we will need approximately twenty -five working days to obtain City Council approval of the final map. The schedule is: ❑ Review of plans and documents 10 days ❑ Preparation, review and modification of agenda report 5 days ❑ Median period for agenda report processing 10 days Based on past performance of the developer's team I estimate that we will not be able to recommend the final map to City Council in less than 120 days from today, say the meeting of June 20, 2001. C:\My Documents \Word \CAA \Tract Correspondence \Tract 516112 -12 Status Report.doc Page 3 of 3 Pages Printed on 2/13%01 at 1:11 PM 00001'