Res03 14549 - Laserfiche WebLink

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• Control the amount of runoff crossing the site (especially during excavation) by using berms or temporary or permanent drainage ditches to divert water flow around the site. Reduce storm water runoff velocities by constructing temporary check dams or berms where appropriate. • Keep materials out of the rain -- prevent runoff contamination at the source. Cover exposed piles of soil or construction materials with plastic sheeting or temporary roofs • Water or cover exposed soils twice daily to minimize wind erosion. Finding: The mitigation measure identified above is feasible and would reduce the potentially significant environmental impact described above to a less- than - significant level. The mitigation measure identified above would reduce the potentially significant environmental impact described above to a less -than- significant level by implementing best management practices to reduce potential soil erosion by minimizing the amount of soil exposed to wind and stormwater runoff. B. Stormwater Quality Potential Impact: The proposed project would contain typical urban activities (such as landscaping, vehicle parking, and maintenance activities) that could affect the stormwater quality. (Potentially Significant) Mitigation: The following mitigation measures, as set forth in the Initial Study and the FEIR, are hereby adopted and will be implemented as provided in the Mitigation Monitoring Program: Implement BMPs and NPDES Measures During Operation. The project sponsor shall implement, but not be limited to, the following BMPs or specific measures in the NPDES permit, whichever is more comprehensive, that would reduce the potential degradation of water quality in San Francisco Bay to a less- than - significant level: • Install oil and grease separators or fossil fuel filters in the drains to filter out automotive pollutants. • Cover areas where potential pollutants such as trash, grease, chemicals, paints, and hazardous and biological wastes are stored or collected. • Seal leaking dumpsters or storage areas immediately.