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PO Box 1928 API 653 SIMILAR SERVICE <br /> BECA 94510 <br /> TESL 707 707 334 3400 KIRK PETROLEUM TRACY,CA <br /> FAx 707 926 2684 <br /> ENGINEERING&INSPECTION,INC www.powersei.conn Tank 2 (Candidate Tank) <br /> SOIL SIDE BOTTOM CORROSION RATE TABLE <br /> Tank 3 Inspection History Tank 2 Inspection History Soil-Side Bottom Corrosion Rate(s) <br /> Tank 3 Powers EI Data from 2010 Tank 2 Powers EI Data from-(Assumed) Tank 3 Powers EI Data from 2010 Tank 2 Powers EI Data from- <br /> (Assumed) <br /> Remaining Remaining Remaining <br /> Years Before Repair After Repair Year Thickness(in) After Repair Year Thickness(in) Year Thickness(in) <br /> 1991 0.3125 0.3125 1991 0.3125 0.3125 1999 0.3125 1991 0.3125 <br /> 2010 0.3000 0.3000 2010 0.3000 0.3000 2353 0.1000 2345 0.1000 <br /> 2520 0 2512 0 <br /> Soil Side Corrosion Rate after repairs for tank 2 . .is 0.00065789 in/yr <br /> AN 653 SIMILAR SERVICE YELLOW FREIGHT TANK 2 TRACY,CA 2019.DOCX Page 13 of 21 Dale Pdnted:614119 9:53 AM <br /> 0 2017 PE&I Inc. <br />