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Tank Inspection P. G. & E. <br />P. G. & E Compressor Plant <br />McDonald Island, California <br />Lat: 37.98934N <br />Lon: 121.40248W <br />Waste Oil Holding Tank <br />Mfg. By. Convault Inc. <br />Cert. UL Part 142 <br />Working Volume: 2000 gallons <br />Length Width Height Leg Height <br />135" 94" 67" 611 <br />Aspect Ratio: .7 <br />Seismic Tipping Aspect Ratio: 2.5 for. 4 G acceleration <br />Coefficient of Friction Concrete: .75 <br />Coefficient of Friction of .4 or greater is required to prevent <br />sliding in during a .4 G lateral acceleration. <br />Secondary Containment Dry <br />Plumbing: Steel <br />Over fill alarm: None <br />Tank Name: C 52 <br />Material of Construction: Steel / Concrete <br />Primary Tank Thickness: 3/16" <br />Secondary Containment: Polyethylene/Concrete <br />Secondary Containment Thickness 6" <br />Tank Sketch: See above. <br />Age of the tank: Approximately 10 years. <br />Corrosion Protection Material: Steel / Polyethylene, Concrete <br />Spill Prevention: level indicator <br />Secondary Containment Description: Polyethylene/Concrete Tank <br />Hazardous Characteristics of waste: waste oil, combustible <br />Welds, Cracks or breaks. No breaks or cracks in tank. Waste oil line <br />has some seepage at tank inlet fitting <br />Scrapes of protective coatings: None observed. <br />Anchoring: none / not required. <br />Foundation: concrete slab <br />Volume Gallons: 2000 <br />Rainwater: covered <br />Sprinkler: not applicable <br />Other: Top entry, emergency pressure relief present, 2 inch <br />vent line with flame arrestor and hat. Fill line is not secondarily <br />contained. It is secure 3 inch line with no evidence of significant <br />corrosion, fitted with flexible connector for seismic relief. <br />