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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 /> 7 <br /> <br />API 653 Inspection Check List (In Service/ cont.) <br />ITEM # ITEM A UNA NI COMMENTS <br />C.1.4.2 Deck Plate External corrosion <br />a. Visually inspect for paint failure, holes, pitting, and corrosion <br />product on the roof deck. X <br />C.1.4.3 Roof Deck Drainage <br />a. <br />Look for indication of standing water. (Significant sagging of <br />fixed roof deck indicates potential rafter failure. Large standing <br />water areas on a floating roof indicate inadequate drainage <br />design or, if to one side, a non-level roof with possible leaking <br />pontoons.) <br />X <br />C.1.4.6 Roof Insulation <br />a. Visually inspect for cracks or leaks in the insulation weather <br />coat where runoff rain water could penetrate the insulation. X <br />b. Inspect for wet insulation under the weather coat. X <br />c. Remove small test sections of insulation and check roof for <br />corrosion and holes near the edge of the insulated area. X <br />C.1.5.1 Sample Hatch <br />a. Inspect condition and functioning of sample hatch cover. X <br />b. On tanks governed by Air Quality Monitoring District rules, <br />check for the condition of seal inside hatch cover. X <br />c. Check for corrosion and plugging on thief and gauge hatch <br />cover. X <br />d. Where sample hatch is used to reel gauge stock level, check <br />for marker and tab stating hold off distance. X <br />e. Check for reinforcing pad where sample hatch pipe penetrates <br />the roof deck. X <br />f. On floating roof sample hatch and recoil systems, inspect <br />operation of recoil reel and condition of rope. X <br />g. Test operation of system. X <br />h. <br />On ultra clean stocks such as JP4, check for presence and <br />condition of protective coating or liner inside sample hatch <br />(preventing rust from pipe getting into sample). <br /> X <br />C.1.5.2 Gauge Well <br />a. Inspect visible portion of the gauge well for thinning, size of <br />slots and cover condition. X <br />b. Check for hold-off distance marker and tab with hold-off <br />distance (legible) X <br />c. On floating roofs, inspect condition of roof guide for gauge well, <br />particularly the condition of the rollers for grooving. X <br />d. If accessible, check the distance from the gauge well pipe to <br />the tank shell at different levels. X <br />e. If tank has a gauge well washer, check valve for leakage and <br />for presence of a bull plug or blind flange. X <br />C.1.5.3 Fixed Roof Scaffold Support <br />a. Inspect scaffold support for corrosion, wear, and structural <br />soundness. X <br />C.1.5.4 Autogauge: Inspection Hatch and Guides (Fixed Roof) <br />a. Check hatch for corrosion and missing bolts. X <br />b. Look for corrosion on the tape guide’s and float guide’s wire <br />anchor. X <br />C.1.5.5 Autogauge: Float Well Cover <br />a. Inspect for corrosion. X <br />b. Check tape cable for wear or fraying caused by rubbing on the <br />cover. X <br />