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08 May 2019 AdvancedGeo <br /> AGE Project No. 15-3508 Environmental <br /> Page 3 of 5 <br /> 2.3. STORAGE — 22 CCR § 66265.192 (k)(8) <br /> Vehicle waste oil is stored within the double walled AST with a capacity of 800-gallons. <br /> Waste oil is a flammable liquid with a specific gravity approximated at 0.82 kilogram per <br /> cubic meter (kg/m3). <br /> 3.0. SECONDARY CONTAINMENT <br /> The AST is double walled and has a 110% secondary shell for containment of a spill from <br /> the primary. The top and side view of the AST are depicted in Figure 3. <br /> 3.1. TANK DESIGN — 22 CCR § 66264.193(e)(3) <br /> The AST is manufactured by Superior Tank. The primary and secondary compartments <br /> are manufactured from 10-gauge steel with a standard 1/8-inch thickness, 72-inches in <br /> width, 48-inches in length and 61-inches in height, in a common cuboid shape. <br /> 3.2. VISUAL INSPECTION — 22 CCR § 66264.193(e)(2) <br /> A visual inspection of the tank and its affiliated pumps, piping, ancillary equipment, interior <br /> surface and exterior surface did not reveal signs of leaks, corrosion, weld cracks or breaks <br /> or scrapes in coating which may cause a release from the tank system. There were no <br /> discrepancies noted at the time of the AST visual inspection. Figure 3 shows the top view <br /> of the tank with appurtenances. A visual assessment summary is included in Table 3 <br /> 4.0. HYDROSTATIC TEST <br /> On 29 January 2019, the hydrostatic (pressure) test was conducted to verify the AST <br /> primary and secondary shell will not leak. The test was conducted by a representative of <br /> AGE on 29 January 2019. Test results are provided in Table 4. <br /> 4.1. TEST PROCEDURES <br /> A total of six AST primary and secondary compartment ports were temporarily sealed to <br /> maintain an inner constant pressure. A regulated pressure valve was attached to one <br /> opening of the primary and secondary AST compartment. Air pressure was applied with <br /> a compressor to 3-pounds per square inch (psi)for a half hour to the primary compartment <br /> and then an additional half hour to the secondary compartment. The AST ports are shown <br /> on Figure 3. <br />