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• Somerset Mining Company SPCC Plan Page 3 1.2 A containment structure shall have adequate capacity to contain the maximum storage volume of the storage vessel it protects. 1.3 With containment structures in place and intact, the possibility of a spill of oil or other hazardous mtterial entering the navigable waters of the United States is remote. 2. Fuel Oil, Gasoline and Hydraulic Oil 2.1 There is a 470 gallon used oil tank and a 320 gallon starter fuel oil tank adjacent to the shop building and a 550 gallon unleaded gasoline storage tank near the Mine Office. The possibility of a spill of oil into a navigable waterway is remote. 2.2 There is a 19,760 gallon hydraulic oil storage tank adjacent to the tipple. A three foot high earthen berm directs any large volume of oil spillage into an area beneath the tipple. This area is concrete lined, does not drain into any waterway and has sufficient volume to contain the entire volume of the hydraulic oil storage tank. Small amounts of oil spillage would be contained in the area around the tank. 3. Transformer Oil 3.1 The possibility of an oil spill from the main substations entering the navigable waters of the United States ie remote. 4. Polychlorinated Biphenyls (PCB) 4.1 There is one transformer which contains 1040 gallons of PCB contaminated oil (140 ppm) in the Elk Creek substation. The possibility of a spill from this transformer entering the navigable waters of the United States is remote. 5. Chlorine 5.1 Chlorine gas in 150 lb. cylinders is used by Somerset Mining Company to treat culinary water. One chlorine cylinder is maintained at the culinary water pump station. A second cylinder is either off site being refilled or is in storage a the Somerset Mine Warehouse. SPILL HANDLING 1. General 1.1 Personnel shall take the necessary actions to minimize the volume of material spilled and the area affected. • 1.2 The Mine Manager shall be notified immediately of any spill.