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API 653 TANK “IN SERVICE” INSPECTION APPLUS RTD <br />CUSTOMER: AMERICAN BIODIESEL, INC INSP DATE(S): 10/23/2017 <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-619 <br /> <br /> 9 <br />INSPECTION COMMENTS/ CONCERNS / RECOMMENDATIONS: <br /> <br /> <br /> <br /> <br />Ultrasonic A-Scan Thickness Survey: <br />New TML locations were established and new base line reading was taken. See field drawing for new TML <br />location. Ultrasonic A-Scan thickness measurements were performed on the shell, roof, and cone. All readings <br />have been entered into Ultra Pipe and after review of the data next inspection date will be 10/23/2022. The <br />predicted retirement date of the tank is 01/07/2044 based on a 2 mil a year default corrosion rate. There are <br />0 caution TML locations per the current thickness survey completed on 10/24/2017. <br /> <br />API 653 External Inspection: <br />External visual inspection found this cone bottom tank to be in good condition. This tank is fully foam <br />insulated and the insulation is in good condition. This tank is mounted on 4 vertical H-beams leg support <br />system. The support legs are painted and found to be in good condition with no significant issues found. The <br />foundation is a concrete slab above grade level and is intact, with no indications of settling noted. All anchor <br />bolts are present, installed in the concrete foundation and are in good condition. The nozzles and flanges are <br />free of significant corrosion or leakage. All bolting is intact, with no significant thread or fastener degradation <br />found. Shell surfaces were inspected through the inspection ports and light surface rust is present. The <br />installed static ground is intact and securely attached <br /> <br />Recommendations: <br />The next external visual inspection will be time based at 5 years. <br /> <br />API 653 Internal Inspection: <br />Internal inspection was not scheduled at the time of this inspection. Internal inspection is recommended at <br />the next planned shutdown. <br />Inspectors Name and API# Inspectors Signature Date <br />James Reese 44021 <br /> <br />10/23/2017