Laserfiche WebLink
Used Oil Tank <br /> Containment Integrity Report <br /> For <br /> HMT Inspection <br /> Tracy Express Carwash & Lube <br /> Tracy, CA January 17,2019 <br /> Page 21 of 34 <br /> 7.0 TABLES (CONT'D.) <br /> TABLE B <br /> USED OIL TANK SHELL PLATE CORROSION RATE <br /> CALCULATIONS <br /> Nominal/Original or Previous Shell Plate Thickness(inches) 0.130 inch <br /> Maximum External Corrosion Depth 0.000 inch <br /> Maximum Internal Corrosion Depth 0.000 inch <br /> Minimum Acceptable Course Thickness 0.065 inch <br /> Year of Inspection (Yi) 2019 year <br /> Year of Construction (Yo) if using nominal thickness or Year of previous UT 1996 year <br /> Average Remaining Thickness from External Thickness Readings 0.132 inch <br /> Average Remaining Thickness from Internal Thickness Readings 0.132 inch <br /> External Corrosion Rate 0.0000 inch/yr <br /> Internal Corrosion Rate 0.0000 inch/yr <br /> Remaining Life Calculation: <br /> Minimum Thickness—from STI SP001 Para. 10.3.4=0.065 inch <br /> Least Remaining Tank Shell Thickness from Inspection=0.099 inch <br /> Calculation=Least Remaining Thickness—STI SP001 Minimum Thickness_Calculated Corrosion Rate= <br /> 0.130 inch—0.065 inch=0.065 inch=0.0000 inch/year>20 years Remaining Life <br /> 23264311 Used Oil Tank-DTSC Report r4(Rev 0) 2/7/2019 2:38 PM <br />