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" CGRS <br /> 3.2 General: <br /> The tank is kept in the basement of the lube shop. Housekeeping is good. It is-that normal and <br /> emergency venting be installed for tanks that hold combustible liquids. It is Recommended that grounding and <br /> NFPA placards/stickers be installed. <br /> 3.3 Foundation and Containment: <br /> The tank is installed in the basement,the tank is installed in a concrete secondary containment preventing any <br /> contact with soil. No major cracks or spalling was observed in the secondary containment. No settlement was <br /> observed in the secondary containment.The tanks have been primed and the coatings are observed to be in good <br /> condition. The designs provide adequate corrosion protection. No piping or ancillary equipment is in contact with the <br /> soil. <br /> The concrete containment shows no signs of major cracking or displacement. The tanks ancillary equipment is <br /> mounted on top of the tank or immediately next to each tank and are readily available for visual inspection. No <br /> grounding is currently installed. <br /> 3.4 RPB and CRDM: <br /> SP-001 is a risk based inspection procedure compensating tank systems with the best spill controls and leak <br /> detection methods with a long frequency between testing. Risk base factors such as Continuous Release Detection <br /> Method (CRDM)conducted during monthly inspections and Release Prevention Barrier(RPB)determine if future <br /> inspections shall be internal or external. <br /> The tank has RPB in the form of the secondary containment but no CRDM.The tank is Category 2 and may be <br /> externally inspected. <br /> 3.5 Tank Shell and Heads: <br /> All tank shells and bulkheads are in good condition. No major dents were observed on the outer shells of the tanks. <br /> The coatings were in good condition, with some signs of coating wear on the risers, piping and ancillary equipment. <br /> 3.6 Integrity Testing: <br /> Section 7.3 of STI SP-001 2018 allows of integrity testing of single walled tanks by form of Ultrasonic Testing. See <br /> Ultrasonic report in section. UL-142 design standards for shell wall steel thickness of rectangular steel tanks between <br /> 660 and 1,320-gallons is 0.1346-inches. The average steel thickness was 0.137-inches, indicating no steel corrosion <br /> issues. <br /> 3.7 Venting: <br /> The tank is not equipped with venting of any kind. The normal vent and emergency vents are Required to be <br /> installed. <br /> 4 <br />