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Hazardous Waste Tank Sy, n <br />Written Assessment per CCR Title 22 <br />Chase Chrysler Jeep, Stockton, CA <br />Volume calculation(s) <br />March 9, 2011 <br />The secondary containment is provided by a concrete dike 161" x 64" x 24" high <br />having a gross volume of 1,070 gallons. The effective volume after a 25 year rain <br />and interferences are accounted for is 582 gallons. The largest tank is 508 <br />gallons, 10 percent of the aggregate volume is 129 gallons. The secondary <br />containment has sufficient volume. <br />Visual inspection of containment area: <br />The containment for the piping and pumps were found to be dry with no evidence <br />of leaks. Visual inspection of the secondary containment found it dry and the <br />concrete around the secondary containment was dry with no evidence of leaks. <br />The containment wall has a hole and the containment has combustible debris. <br />Site Security: The waste oil and antifreeze tanks are within a fenced area which <br />is secured by the Stockton Auto Mall Security Guard. The area is under video <br />surveillance. The fence is locked when unattended and is routinely patrolled by <br />the Stockton Police department. <br />Secondary Containment findings: The secondary containment syste of <br />sufficient capacity and condition for the containment of releases from all <br />and ancillary equipment. <br />Initials: <br />Strandberg Associates 1(866) 388-0404 (650) 329-8918 rwaterguy(a)rwaterquy.com 32 <br />