Laserfiche WebLink
The WQMP will include the following BMPs along with selected BMPs to target <br />pollutant removal: <br />(i) Waste and materials storage and management BMPs (design and <br />construction of outdoor materials storage areas and trash and waste <br />storage areas, if any, to reduce pollutant introduction). <br />(ii) Spill prevention and control BMPs. <br />(iii) Slope protection BMPs. <br />(iv) Water efficient irrigation practices. <br />(v) Permanent erosion and sediment controls (e.g., hydroseeding, mulching, <br />surface covers). <br />The following BMPs are encouraged to be considered: <br />(i) Incorporation of rain gardens or cisterns to reuse runoff for landscape <br />irrigation. <br />(ii) Site design and landscape planning. <br />(iii) Sand filters for parking lots and rooftop runoff. <br />(iv) Frequent street and parking lot sweeping. <br />(v) Media filter devices for rooftop drain spouts (including proprietary <br />devices). <br />(vi) Biofiltration devices (bioretention features, swales, filter strips, and <br />others). <br />(vii) Proprietary control measures (if supporting documentation is provided). <br />(viii) Drain inlet filters. <br />Unless sufficient objective studies and review are available and supplied with the <br />WQMP to correctly size devices and to document expected pollutant removal <br />rates, the WQMP will not include: <br />(i.) Hydrodynamic separator type devices as a BMP for removing any <br />pollutant except trash and gross particulates, and <br />(ii.) Oil and grit separators. <br />The WQMP will not include infiltration BMPs unless they comply with design <br />guidelines and requirements specified in TC -1: Infiltration Basins in the CASQA <br />Stormwater Quality BMPs Handbook for New Development and Significant <br />Redevelopment (2003) or are specifically approved by the City Engineer and will <br />meet Municipal NPDES Permit minimum requirements including adequate <br />maintenance and that the vertical distance from the base of any infiltration device <br />to the seasonal high groundwater mark will be at least 10 feet. <br />Implementation and maintenance of BMPs will be required. A BMP Monitoring <br />and Maintenance Plan will be incorporated as part of the WQMP and will include, <br />at a minimum, inspection and maintenance of all structural BMPs on the <br />property, a report of non-structural BMP inspection and compliance, and <br />reporting requirements. The Monitoring and Maintenance Plan will be approved <br />by the City of Pleasanton City Engineer prior to the beginning of occupancy. <br />19 <br />