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HomeMy WebLinkAboutMINUTES - 08101993 - 1.9 TO: BOARD OF SUPERVISORS FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR DATE: August 10, 1993 SUBJECT: COLLECT AND CONVEY DRAINAGE REQUIREMENTS FOR PERMIT 2043-92, (COMMUNITY BAPTIST CHURCH, WEST PITTSBURG AREA) SPECIFIC REQUEST(S) OR RECOMMENDATION(S) &BACKGROUND AND JUSTIFICATION I. Recommended Action: 1. ACCEPT the following report from the Public Works Director regarding a request from Mr. Dapo Okupe on behalf of the Community Baptist Church for an alternative to the "collect and convey" requirement on Permit No. 2043-92. 2. APPROVE the following as an alternative condition of approval to the "collect and convey" requirement of Ordinance Code Section No. 914-2. a. All drainage to and from the site shall be conveyed across said site in an adequate, maintainable, open drainage way to the existing roadside ditch. b. Developer shall execute a recordable agreement accepting unto himself and future owners of the above drainage way all responsibility for future maintenance and liability. C. Developer shall contribute $1.25 per square foot of new impervious surface on the parcel to the Drainage Deficiency Trust Fund (812100-0800). The fee amount for the proposed building addition is calculated to be $2500. If any additional impervious surface (e.g. parking lots, sport courts, or other paved surfaces) is created on the parcel prior to the installation of the necessary drainage facilities along Bella Vista Avenue, the Church shall be subject to an additional fee of$1.25 per square foot. Once the County has secured the installation of drainage improvements along Bella Vista Avenue, this drainage fee shall no longer be required. Continued on Attachment: X SIGNATURE: _ RECOMMENDATION OF COUNTY ADMINISTRATOR _ RECOMMENDATION OF BOARD COMMITTEE APPROVE OTHER SIGNATURE(S): ACTION OF BOARD ON AUG 10 1993 APPROVED AS RECOMMENDED OTHER _ VOTE,OF SUPERVISORS V UNANIMOUS (ABSENT ) AYES: NOES: ABSENT: ABSTAIN: I hereby certify that this Is a true and correct copy of ML:pe:cl:mg an action taken and entered on the minutes of the c:work/bo10.t8 Board of Supervisors on the date shown. Contact: Martin Lysons, 313-2245 ATTESTED: AUG 1 0 1993 Orig. Div: Public Works (Engineering Services) PHIL BAf&TELUOR,-Clirl o the Board cc: Building Inspection of Supervisors and County Administrator County Administrator , County Counsel Community Development ey ' —'Dept Flood Control District COLLECT AND CONVEY DRAINAGE REQUIREMENTS FOR PERMIT 2043-92, (COMMUNITY BAPTIST CHURCH, WEST PITTSBURG AREA) August 10, 1993 PAGE TWO I. Recommended Action: (Continued) 3. ADOPT the following findings pursuant to Chapter 92-6, "Exceptions," of the Ordinance Code in order to approve the alternative condition of approval: a. There are unusual circumstances or conditions affecting the property. The Bella Vista Avenue area has long been urbanized with inadequate drainage facilities. Extensive drainage improvements are necessary and only a few small parcels remain which can be developed. Infill development of the remaining parcels in the area cannot support the installation of drainage improvements as required by the Ordinance Code. The potential for land development activity to provide for orderly development of the drainage system is unlikely in the near future. However, the Redevelopment Agency has agreed to finance the installation of drainage improvements downstream of the subject property, along Willow Pass Road to Bella Vista Avenue. The plan for the drainage system has been designed and is on record at the Public Works Department. The contribution of $1.25 per square foot of impervious surface from future development will provide the additional funding necessary to finance the installation of the drainage system along Bella Vista Avenue. b. The exception is necessary for the preservation and enjoyment of a substantial property right of the applicant. Development of land in general, in the West Pittsburg area, cannot occur without allowing developers to comply with drainage requirements which are much less expensive per unit than those required by the Drainage Division of the Subdivision Ordinance Code for this development. C. The granting of the exception will not be materially detrimental to the public welfare or injurious to other property in the area in which the property is situated. The amount of storm water runoff from the new impervious surfaces, approximately 2,000 square feet, is minor in comparison to the size of the watershed. II. Financial lmpact: The financial impact to the County is unknown. III. Reasons for Recommendations and Background: The one-half acre in the Bella Vista Avenue area of West Pittsburg contains an existing community church. Mr. Okupe proposes to construct an addition to the rear of the church, approximately 2,000 square feet in area, and has agreed not to create any additional impervious surface on the parcel other than the addition. If subsequent impervious surface is created on the parcel, the applicant has agreed to pay the corresponding fee of $1.25 per square foot of additional impervious surface created. Unfortunately, drainage in this area depends on inadequate road side ditches to convey surface runoff. The nearest adequate drainage facility is located approximately 1,500 feet away. Several engineers have reviewed this development to determine the least costly drainage solution that meets the requirements of "collect and convey." They have concluded that all of the potential solutions are not economically feasible for this small development. Staff has determined, however, that the drainage system can be installed with partial funding from the Redevelopment Agency if all the potential future development contribute $1.25 per square foot of impervious area. A strict compliance to the "collect and convey" requirement places a hardship on the church. There exists an unusual circumstance in that it would be impossible for the Community Baptist Church to generate the necessary funding from this addition to design or construct any drainage improvement that would have a significant impact in this area. COLLECT AND CONVEY DRAINAGE REQUIREMENTS FOR PERMIT 2043-92, (COMMUNITY BAPTIST CHURCH, WEST PITTSBURG AREA) August 10, 1993 PAGE THREE Staff recommends that the Board permit the alternative condition of approval in lieu of strict application of "collect and convey." The proposed contributions to regional drainage from this development represents its fair share of the future costs. The other monies collected from previous development on Bella Vista Avenue will be added to the contribution from this development to implement needed drainage improvements to service this area. IV. Consequences of Negative Action: If the alternative condition is not granted, the applicant will be required to meet the full collect and convey requirements of the Drainage Code.