RES 2025008 - Laserfiche WebLink

6. 2) Best Management Practices (BMPs) shall be implemented to reduce erosion of exposed soil and may include, but not be limited to , soil stabilization controls , watering for dust control , perimeter silt fencing , placement of hay bales , and sediment basins . The potential for erosion is generally increased if grading is performed during the rainy season as disturbed soil can be exposed to rainfall and storm runoff. If grading must be conducted during the rainy season , the primary BMPs selected shall focus on erosion control to keep sediment on the slopes . End-of-pipe sediment control measures (e.g., basins and traps) shall be used only as secondary measures. If hydroseeding is selected as the primary soil stabilization method, then slopes shall be seeded by September 1 to October 1. Entry and egress from the construction site shall be carefully controlled to minimize off-site tracking of sediment . Vehicle and equipment wash-down facilities shall be designed to be accessible and functional both during dry and wet conditions. 3) Appropriate measures shall be taken to prevent storm water pollution associated with post-construction activities at developed sites. Because the Plan Area includes relatively low-density development , it may be practical for the design of the residential development areas to include "no net gain" in stormwater runoff from the site . Large single-family home lots generally provide many opportunities for stormwater management , including unit pavers on sand patios, concave lawn/infiltration basins, and dry wells connected to roof downspouts . Public Health and Safety Requirements Relatine to Construction In order to ensure that development of the Plan Area proceeds safely , the developers of future projects shall be required to comply with the following measu res: a. Prior to development of Lots 1, 2, 18, 19 , 21 , 22 , 26 , 28 , 30, and 31 , where nursery or significant agricultural operations now exist or once existed , a Phase I Environmental Site Assessment shall be conducted by a qualified environmental professional in accordance with the requirements of the American Society for Testing and Materials (ASTM, 1997). If the findings of the Assessment indicate the presence of, or potential for, hazardous materials use associated with the current or past agricultural uses of these sites , a Phase II Environmental Site Assessment shall be conducted by a qualified environmental professional to ascertain whether past or current land uses have contributed to soil and /or groundwater contamination at the site. Soil and groundwater samples collected during the Phase II Assessment shall be submitted to a California-certified laboratory for analysis. 53