9600 SHARON DR EXPLORER MIDDLE SCHOOL 2016-05-27

CITY OF EVERETT STORMWATER MANAGEMENT MANUAL 9. Prepare and implement an emergency spill cleanup plan for the facility(Activity A7.14 Spills of Oil and Hazardous Substances)which includes the following BMPs: a. Ensure cleanup of liquid/solid spills in the loading/unloading area immediately if a significant spill occurs,upon completion of the loading/unloading activity, or at the end of the working day. b. Retain and maintain an appropriate oil spill cleanup kit on site for rapid cleanup of material spills(see Activity A7.14 Spills of Oil and Hazardous Substances). c. Ensure that an employee trained in spill containment and cleanup is present during loading/unloading. 10. For the transfer of pollutant liquids in areas that cannot contain a catastrophic spill, install an automatic shutoff system in case of unanticipated off-loading interruption(e.g.,coupling break, hose rupture,overfill, etc.). At Rail Transfer Areas to Above/Below-ground Storage Tanks: Install a drip pan system as illustrated within the rails to collect spills/leaks from tank cars and hose connections,hose reels,and filler nozzles. Loading/Unloading from/to Marine Vessels: Facilities and procedures for the loading or unloading of petroleum products must comply with Coast Guard requirements. Transfer of Small Quantities from Tanks and Containers: Refer to BMPs A4.8 Storage of Liquids in Permanent Aboveground Tanks and A4.7 Storage of Liquid, Food Waste,or Dangerous Waste Containers for requirements on the transfer of small quantities from tanks and containers, respectively. At Loading and Unloading Docks: 1. Install/maintain overhangs or door skirts that enclose the trailer end to prevent contact with rainwater. 2. Design the loading/unloading area with berms, sloping,etc.to prevent the run-on of stormwater. 3. Retain on site the necessary materials for rapid cleanup of spills. At Tanker Truck Transfer Areas to Above/Below-Ground Storage Tanks: 1. Pave the area on which the transfer takes place. If any transferred liquid, such as gasoline, is reactive with asphalt, pave the area with Portland cement concrete. 2. Slope,berm,or dike the transfer area to a dead-end sump, spill containment sump, spill control oil/water separator,or other spill control device. The minimum spill retention time should be 15 minutes at the highest fuel dispenser nozzle through-put rate or the peak flow rate of the • 6-month,24-hour storm event over the surface of the containment pad,whichever is greater. The volume of the spill containment sump should be a minimum of 50 gallons with an adequate grit sedimentation volume. A2.2 Fueling at Dedicated Stations Description of Pollutant Sources: A fueling station is a facility dedicated to the transfer of fuels from a stationary pumping station to mobile vehicles or equipment. It includes above or under-ground fuel storage facilities. In addition to general service gas stations,fueling may also occur at 24-hour Volume IV— Source Control 3-10