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e. 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 ridge or a berm shall be constructed 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 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. f. Roof drains shall discharge and drain away from the building foundation. Ten percent of the stormwater flow shall drain to landscaped area or to an unpaved area wherever practicable. B. Construction Requirements The Construction General Permit's construction requirements include, but are not limited to, the following: Construction activities (including other land-disturbing activities) that disturb one acre or more (including smaller sites that are part of a larger common plan of development) are regulated under the NPDES stormwater program. Operators of regulated construction sites are required to develop and implement stormwater pollution prevention plans and to obtain a construction general permit (NOI) from the State Water Resources Control Board to discharge stormwater. http://www.waterboards.ca.qov/water issues/programs/stormwater/docs/finalcon stpermit.pdf 1. The project developer shall submit a Stormwater Pollution Prevention Plan (SWPP) for review by the City Engineer/Chief Building Official prior to issuance of building or engineering permits. A reviewed copy of the SWPPP shall be available at the project site until engineering and building permits have been signed off by the inspection departments and all work is complete. A site specific SWPPP must be combined with proper and timely installation of the BMPs, thorough and frequent inspections, maintenance, and documentation. Failure to comply with the reviewed construction SWPPP may result in the issuance of correction notices, citations or stop work orders. 2. The amendments to the SWPPP and all the inspection forms shall be completed and available at the site for inspection by the city, county or state staff. Page 16 of 21