ARCHIVED REPORTS_2019 SOIL MGMT PLAN (JULY-REVISED)

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13 SECTION 3.3 - NON-STORMWATER AND MATERIALS MANAGEMENT An inventory of construction activities, materials, and wastes that may contribute to non-stormwater discharges is provided in Section 2.6. The following list indicates the BMPs that have been selected to prevent non-stormwater discharges and manage materials on site. The following are primary sediment control measures that may apply to this project and are to be implemented if needed as determined by the Erosion Control Plan, QSD, QSP or contractor. If implemented, the BMPs are to be installed and used per the CASQA BMP Fact Sheets, which are referenced in parenthesis and included in Appendix G: A narrative description of each BMP follows: 1) Water Conservation (NS-1) – The contractor shall take extra care to conserve water on-site. Water equipment shall be repaired immediately if leaking water is observed. Minimizing water runoff reduces the risk of discharging visible and non-visible pollutants to the storm drain. 2) Illicit Connection/Discharge (NS-6) – The contractor shall perform an initial inspection of the site to identify any pre-existing illicit connections, discharges, or hazardous material exists on site. Generally, only stormwater is allowed to drain into the storm drain system. Therefore, the contractor should inspect the site regularly for evidence of illegal dumping or discharges such as unusual colors surrounding catch basins or abnormal water flows during dry weather. 3) Vehicle and Equipment Cleaning (NS-8) – If vehicle and equipment cleaning will be performed on-site the contractor must designate an area where the resulting runoff can be fully contained and disposed of (See CASQA Fact Sheet WM-6 and WM-10). Hazardous materials and solvents are discouraged for washing use. 4) Vehicle and Equipment Fueling (NS-9) – Vehicle and equipment fueling should be done off- site as much as possible. If fueling will occur onsite, designate an area protected from run on and run off to contain spills. Drip pans and absorbent pads should be available on onsite to clean up any leaks or spills. The QSP shall locate the fueling area on the erosion control and grading plan in Appendix M and Appendix N for reference. 5) Vehicle and Equipment Maintenance (NS-10) – Vehicle and equipment maintenance should only be performed onsite when absolutely necessary. The maintenance area shall be bermed and protected from run-on or run-off. Drip pans and absorbent pads should be available onsite to clean up any leaks or spills. The QSP shall locate the fueling area on the erosion control and grading plan in Appendix M and Appendix N for reference. 6) Material Delivery and Storage (WM-1) – Material Delivery and Storage involves maintaining a clean and orderly site. Chemicals or other potentially harmful products should be kept away from areas subject to stormwater. Additionally, they should be kept in water tight containers and at a minimum, placed on the liner with berms over the soil. 7) Material Use (WM-2) – When applying hazardous or harmful material, maintain a safe distance from water bodies and storm drain inlets. Products that may be harmful to stormwater shall be given ample time to dry and set prior to any rain event. 8) Stockpile Management (WM-3) – All permanent stockpiles shown on the plans or temporary stockpiles created by the contractor not scheduled to be used 14 days shall be immediately protected. The stockpiles shall be protected by a perimeter silt fence (SE-1) or a fiber roll (SE-5) and Wind Erosion Control (WE-1) practices such as hydraulic mulch (EC-3) shall be used to stabilize the stockpile.