9826 7TH AVE SE 2025-03-25 - Laserfiche WebLink

3.0 BEST MANAGEMENT PRACTICES The BMPs are measures used to reduce or mitigate storm water pollution from industrial activities. BMPs are a broad class of measures and may include processes, procedures, schedules of activities, and prohibition of practices. Specific measures followed at this facility are discussed below. 3.1 Operational Source Control BMP Ecology mandates facilities to implement the BMPs listed in the NPDES permit,including the BMPs from Volume IV of the Storm water Management Manual(SWMM)for Western Washington,as"applicable"for specific industrial activities/facilities. Condition S3 of the Industrial Storm water General Permit requires SWPPP to include all Operational and Structural Source Control BMPs listed as "applicable" in Ecology's SWMMs, or other guidance documents as mandatory.The applicable BMPS for the site include: Operational Source Control BMPs for Fueling at Dedicated Stations • The SWPPP plan has been prepared per BMPs for Spills of Oil and Hazardous Substances which designates trained person(s) available either on site or on call at all times to promptly and properly implement that plan and immediately cleanup all spills. Suitable cleanup materials, such as dry adsorbent materials, are stored on site to allow prompt cleanup of a spill. • Employees are trained on the proper use of fuel dispensers. Signs are posted in accordance with the Uniform Fire Code(UFC). "No Topping Oft'signs are posted at the fuel pump islands(topping off gas tanks causes spillage and vents gas fumes to the air). The automatic shutoff on the fuel nozzle is inspected regularly to insure that it is functioning properly. • The person conducting the fuel transfer must be present at the fueling pump during fuel transfer,particularly at unattended or self-serve stations. All Loading/Unloading Areas: • A significant amount of debris can accumulate at outside,uncovered loading/unloading areas. These surfaces are swept frequently to remove material that could otherwise be washed off by stormwater. Outside areas that are covered for a period of time are swept after the areas are cleared. • Drip pans or other appropriate temporary containment devices are placed at locations where leaks or spills may occur such as hose connections,hose reels and filler nozzles. Drip pans are always used when making and breaking connections. Loading/unloading equipment such as valves,pumps, flanges,and connections are regularly inspected for leaks and repaired as needed. • A spill kit has been installed within 25 feet of the fueling area at each of the Nelson t sites. i