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during waste removal. These areas shall not drain to the storm drain <br /> system, but to the sanitary sewer system and an area drain shall be <br /> installed in the enclosure area, providing a structural control such as an <br /> oil/water separator or sand filter. No other area shall drain into the trash <br /> enclosure; a ridge or a berm shall be constructed to prevent such drainage if <br /> found necessary by the City Engineer/Chief Building Official. A sign shall be <br /> posted prohibiting the dumping of hazardous materials into the sanitary <br /> sewer. The project developer shall notify the Dublin-San Ramon Services <br /> District (DSRSD) upon installation of the sanitary connection; a copy of this <br /> notification shall be provided to the Planning Department. <br /> f) All paved outdoor storage areas shall be designed to minimize pollutant <br /> runoff. Bulk materials stored outdoors that may contribute to the pollution of <br /> stormwater runoff must be covered as deemed appropriate by the City <br /> Engineer/Chief Building Official and as required by the State Water Board. <br /> g) All metal roofs, if used, shall be finished with rust-inhibitive paint. <br /> h) Roof drains shall discharge and drain away from the building foundation. <br /> Ten percent of the stormwater flow shall drain to landscaped area or to an <br /> unpaved area wherever practicable. <br /> B. Construction Requirements <br /> The Construction General Permit's construction requirements include, but are not <br /> limited to, the following: <br /> Construction activities (including other land-disturbing activities) that disturb one <br /> acre or more (including smaller sites that are part of a larger common plan of <br /> development) are regulated under the NPDES stormwater program. Operators of <br /> regulated construction sites are required to develop and implement a Stormwater <br /> Pollution Prevention Plan and to obtain a Construction General Permit (NOI) from <br /> the State Water Resources Control Board to discharge stormwater: <br /> htto://www.waterboards.ca.gov/water issues/programs/stormwater/docs/finalcon <br /> stpermit.pdf <br /> Stormwater <br /> 1. The project developer shall submit a Stormwater Pollution Prevention Plan <br /> (SWPPP) for review by the City Engineer/Chief Building Official prior to <br /> issuance of building or engineering permits. A reviewed copy of the SWPPP <br /> shall be available at the project site until engineering and building permits <br /> have been signed off by the inspection departments and all work is complete. <br /> A site specific SWPPP must be combined with proper and timely installation <br /> of the BMPs, thorough and frequent inspections, maintenance, and <br /> 26 of 29 <br />