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• • 1111111111111111111 <br />999 <br />SPECIFICATIONS: <br />1. Fuel Pad Drainage Trench <br />Figure 1 shows the location for the fuel pad drainage trench to be <br />constructed. The trench will be dug and wacker packed to the bottom <br />elevations shown on Figure 2. A 1/4" per foot slope shall be maintained <br />around the fuel pad beginning at the southwest corner. All concrete will be <br />3,000 PSI minimum and reinforced as shown in Figures 3 and 3A. The grating <br />will be Rhyerson Steel part number 15-W-2 or equivalent. The grating sections <br />will be kept to 3' maximum lengths. This grate will be banded on the ends and <br />will sit on a 1/4" plate that is tacked to the angle iron. A 4" diameter <br />schedule 80 PCV pipe will carry the drainage underground around and to the <br />north of the Tube and wash bay concrete pad. A 1/2" per foot slope shall be <br />maintained from the trench to the existing sump northwest of the wash bay. <br />Pipe depths to maintain this slope are shown on Figure 1. The PVC pipe will <br />need to be bedded and centered in approximately one-foot of sand and then the <br />trench filled and wacker packed in one foot lifts. Any time this trench is <br />deeper than 4 feet, the trench must be wide enough to maintain safety for <br />personnel in the trench. The area of pipe penetration through the existing <br />sump will need to be grouted back in around the pipe. Contractor shall <br />furnish labor, equipment and material to complete the job. <br />2. Waste 011 Transfer Lines. <br />All waste oils will be pumped from three sumps to one existing 20,000 gallon <br />surface storage tank. All three lines are shown on Figure 4. All interior <br />lines will be 1" diameter schedule 40 black pipe and all exterior lines will <br />be 2" diameter schedule 40 galvanized pipe. All exterior lines, except for <br />the Tube bay to storage tank line, will be buried 5 feet. All buried lines <br />will be bedded and centered in approximately one-foot of sand and then covered <br />in one-foot wacker-packed lifts. Trench excavation must be done with extreme <br />caution due to numerous buried water, fuel, and power lines, location of most <br />are not accurately known. Trench width will increase as trench depth <br />increases so as to provide for the safety of personnel working in the trench. <br />The Tube bay to surface storage tank line will be above ground and on pipe <br />stands. The berm surrounding the tank farm will be broken and rebuilt along <br />the pipe to the Tube-wash building. The main shop to storage tank trench will <br />be excavated such that access to the west facing shop doors is not cut off at <br />any time. Figures 5 and 6 show routes for the light duty shop oil line and <br />the wash and Tube bay oil line. <br />New sumps will be constructed to accept the pumping setup shown on Figure 7. <br />All piping will have union couples at every other joint or where practical. <br />This will provide for easy replacement of line components and easy line <br />additions in the future. Figure 7 is the pumping system to be used at each <br />pump site. The only modification will be the systems in the main shop and the <br />Tube bay will have a plug in the tee fitting to the heater, instead of a <br />valve. Contractor will be responsible for all electrical work associated with <br />the pump motor and controls. Owner will install a high oil level warning <br />system on the 20,000 gallon tank to help prevent accidental spills. All work <br />