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iii. Landscaping and irrigation consistent with Bay - Friendly <br />Landscaping. <br />iv. Water conservation techniques to promote surface infiltration. <br />f. Trash dumpsters and recycling containers shall be in an enclosed and <br />roofed area to minimize water flowing in and from the area and to <br />contain litter and trash to minimize disbursement by the wind or runoff. <br />These areas shall not drain to the storm drain system, but to the <br />sanitary sewer system. An area drain shall be installed in the <br />enclosure area with a structural control such as an oil /water separator <br />or sand filter. No other area shall drain into the trash enclosure; a <br />ridge or a berm shall be constructed to prevent such drainage if found <br />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. <br />g. All paved outdoor storage areas shall be designed to minimize <br />pollutant runoff. Bulk materials stored outdoors that may contribute to <br />the pollution of stormwater runoff must be covered as deemed <br />appropriate by the City Engineer /Chief Building Official. <br />h. All metal roofs, gutters, and downspouts shall be finished with rust - <br />inhibitive finish /paint as determined by the Chief Building Officia <br />i. All projects using architectural copper roofing, gutters, downspouts, <br />etc., shall utilize the following Best Management Practices for use and <br />maintenance: <br />a. During installation, copper material shall be pre - patinated at the <br />factory. If patination is done on -site; collect the rinse water in a <br />tank and haul off -site for disposal. With prior authorization from <br />Dublin San Ramon Services District (DSRSD), you may collect <br />the rinse water in a tank and discharge to the sanitary sewer. <br />Optionally, consider coating the copper materials with a clear <br />coating that prevents further corrosion and stormwater pollution. <br />The clear coating, if utilized, shall be reapplied (as <br />recommended by the coating manufacturer) to maintain its <br />efficacy. <br />b. During maintenance, the following applies during washing and <br />patination: <br />i. Minimize washing of architectural copper as it damages the <br />patina and any protective coating. <br />ii. Block all storm drain inlets downstream of the wash. <br />iii. Collect in a tank and dispose off -site, or discharge the <br />wash water to the sanitary sewer (with prior authorization <br />from DSRSD). <br />PUD -100 <br />Conditions of Approval (Planning Commission) <br />Chick -fil -A <br />Page 18 <br />