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AP1653 TANK"INSERvIcE"INSPECTION APPLusRTD O <br /> CUSTOMER: AMERICAN BIODIESEL,INC INSP DATE(S): 10/25/2017 <br /> LOCATION: STOCKTON, CA CONTACT. MIKE PARISSI <br /> INSP TYPE: API 653 EXTERNAL AND UT INSPECTOR(S): RONNIE HARLESTON <br /> EQUIPMENT TYPE/DESCRIPTION: 25,000 GALLON STORAGE TANK <br /> SERIAL/ID/ASSET#: T-118 <br /> API 653 Inspection Check List(In Service) <br /> ITEM# ITEM A U NA NI COMMENTS <br /> C.1.1 Foundation <br /> Measure foundation levelness and bottom elevations(See <br /> a. appendix B for extent of measurements). X <br /> C1.1.1.1 Concrete Ring <br /> Inspect for broken concrete,spalling, and cracks, particularly <br /> a. under back-up bars used in welding butt-welded annular rings X <br /> under the shell. <br /> b Inspect drain openings in ring, back of water draw basins and X <br /> top surface of ring for indications of bottom leakage. <br /> C. Inspect for cavities under foundation and vegetation against X <br /> bottom of tank. <br /> d Check that the runoff rainwater from the shell drains away from X Above ground <br /> the tank. <br /> e. Check for settlement around perimeter of tank. X Good <br /> C.1.1.5 Site Drainage <br /> a Check site for drainage away from the tank and associated X Good <br /> piping and manifolds. <br /> b. Check operating condition of the dike drains. X Good <br /> C1.1.6 Housekeeping <br /> Inspect the area for buildup of trash,vegetation and other <br /> a' flammable build up. X Good <br /> C1.2 Shells <br /> C1.2.1 External Visual Inspection <br /> a. Visually inspect for paint failures, pitting and corrosion. X Insulated <br /> b Clean off the bottom angle area and inspect for corrosion and X Does not apply cone <br /> thinning on plate and weld. bottom <br /> C. Inspect the bottom to foundation seal, if applicable. X Does not apply cone <br /> bottom <br /> d. Inspect shell surfaces for bulging or deformations. X Insulated <br /> e Check for the presence of shell patches and note the location X Insulated <br /> and sizing on the drawing <br /> C1.3 Shell Appurtenances <br /> C1.3.1 Manways and Nozzles <br /> a Inspect for cracks or signs of leakage on weld joint at nozzles, X <br /> manwa s,and reinforcement plates. <br /> b Inspect for shell dimpling around nozzles,caused by excessive X Insulated <br /> pipe deflection. <br /> C. Inspect for flange leaks and leaks around bolting. X Good <br /> d. Inspect sealing of insulation around manwa s and nozzles. X <br /> e Check for inadequate manway flange and cover thickness on X <br /> mixer manwa s. <br /> 5 <br />