12 Exhibits - Laserfiche WebLink

88. The project shall comply with the Alameda Countywide NPDES Permit #CA50029831, a copy of which is available at the City offices. In addition to the Standard Urban Stormwater Runoff Requirements for compliance with the Alameda County NPDES Permit, the project shall also comply with the Permit's Hydro Modification requirements as approved by the Regional Water Quality Control Board for Alameda County. 89. The following requirements shall be incorporated into the project: a. The project developer shall submit a final grading and drainage plan prepared by a licensed civil engineer depicting all final grades and on-site drainage control measures including bio-swales. Irrigated bio-swales and areas shall be designed as needed to the satisfaction of the City Engineer to optimize the amount of the storm water running off the paved surface that enters the bio-swale at its most upstream end. This plan shall be subject to the review and approval of the City Engineer prior to the issuance of the first grading permit for the development covered by this approval. b. All trash areas, dumpsters and recycling containers shall be enclosed and roofed to prevent water run-on to the area and runoff from the area and to contain litter and trash, so that it is not dispersed by the wind or runoff during waste removal. These areas shall not drain to the storm drain system, but to the sanitary sewer system and an area drain shall be installed in the enclosure area, providing a structural control such as an oil/water separator or sand filter. No other area shall drain into the trash enclosure; a berm shall be installed to prevent such drainage if found necessary by the City Engineer/Chief Building Official. A sign shall be posted prohibiting the dumping of hazardous materials into the sanitary sewer. The CC&Rs covering the future property subdivision shall include the above statement in their wording. The project developer shall notify the Dublin-San Ramon Services District (DSRSD) upon installation of the sanitary connection; a copy of this notification shall be provided to the Planning Department. c. The project developer shall submit sizing design criteria to treat stormwater runoff at the time of the grading plan submittal. d. Public and private landscaping shall be designed to minimize irrigation and runoff, promote surface infiltration where appropriate, and minimize the use of fertilizers and pesticides that can contribute to stormwater pollution. · Structures shall be designed to discourage the occurrence and entry of pests into buildings, thus minimizing the need for pesticides. Page 16 of 20