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2. Tank Selector Valve —Allows operator to choose which tank fuel will be pumped into or out of. E. The Fuel Sump The fuel sump is a 67 -gallon enclosed vessel which contains a float system that operates two pneumatic micro switches which operate the filtration system pump. The micro switches control a full flow pneumatic ball valve, which operates the pump. The micro switches and full flow valve are covered to protect them from damage and minimize vaporization. Outside of the cover are a system on / off valve and a bypass valve. The system on/off valve is normally on unless the system malfunctions. The bypass valve is used to drain the sump in the event of a malfunction, and drain water or off -specification fuel. There is a Level Window on the sump that makes it possible to observe and remove any water from drained fuel before it reaches a level where it could be pumped through the filters and enters the storage tank(s) or compartments. F. The Level Window The level window has three level marks on it: 1. Low Mark = high water mark. The operator should not let the water level exceed this mark. If water exceeds this mark it may be pumped into the filters. 2. Middle Mark = pump shut down mark. If the pump continues to pump below this mark the system may be malfunctioning or the bypass valve may have been turned on. 3. High Mark = pump start up mark. If the fuel level exceeds this mark without the pump starting there may be a malfunction, or the on/off valve may be in the off position. While draining fuel the operator needs to pay close attention to the water level in the sump. When the water level reaches the bottom mark the operator should stop and drain the water into an appropriate storage container until the water line is even with the bottom of the window. Stopping at this point will assure that only water is removed. The water should be stored in a labeled, closed -top drum for profiling and disposal. If the operator notices something other than gasoline coming from the fuel tank during fuel draining operations, the operator should turn the on/off valve on the sump to the off position and report the matter to their supervisor who will coordinate proper transfer, storage, and disposal of the material. G. The Storage Tank The storage tanks are multi -compartment UL -2085 rated aboveground fuel storage tank (AST) manufactured by Con Vault or Containment Solutions. Each compartment can store 500 -gallons of reclaimed gasoline. The ConVault AST is constructed of steel, housed in a concrete vault with secondary containment and an empty weight of approximately 18,000 pounds. The weight of the Containment Solutions AST is unknown. Each compartment of the AST receives fuel through submerged fill pipes (vapor loss control device) after filtration. For reclaimed gasoline, true vapor pressure remains between 0.5 and 1.5 psia. Vapor Emissions Point: Each compartment of the AST possesses 4" diameter emergency pressure relief fittings, 6" diameter pressure relief devices, and 2" diameter vapor vent stacks (with CARB required EVR