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Hazardous Waste Tank System September <br /> Final Written Assessment per CCR Title 22 <br /> Stockton Dodge.Stockton, CA 95212 201$ <br /> Tank Integrity <br /> The tank has been in service for 5 years and shows no evidence of <br /> leakage. <br /> Ultrasonic Thickness Measurements t:(; �J U <br /> DEC 21 2015 <br /> UTG Waste Antifreeze Tank ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> Reading, measured corrected, corrected, <br /> Primary thickness, mm mm inches <br /> 1 25.0 8.7 0.3 <br /> 2 17.7 6.2 0.2 <br /> 3 20.0 7.0 0.3 <br /> 4 23.0 8.0 0.3 <br /> 5 23.5 8.2 0.3 <br /> Average 0.3 <br /> Std. Dev. 0.0 <br /> Secondary <br /> 6 11.5 4.0 0.2 <br /> 7 9.8 3.4 0.1 <br /> 8 12.2 4.2 0.2 <br /> 9 12.5 4.3 0.2 <br /> 10 13.9 4.8 0.2 <br /> Average 0.2 <br /> Std. Dev. 0.0 <br /> Strandberg Associates 1(866) 388-0404 rwateguy(UD.rwaterpuy com 21 <br />