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POWERS ro7OA7 � <br /> evaan,cnetstn STI SP-001 INSPECTION <br /> TFVG]]N GEORGE REED NC MODESTO,CA <br /> FPII]0]832 YIBi <br /> EwHEERIW&INSPECTION,INC. SS-1 <br /> Executive Summary <br /> Powers Engineering and Inspection, Inc.(PEI)was contracted by George Reed Inc to provide an STI SP001 <br /> Inspection for the AST at the Modesto, CA facility, in March 2019. This tank inspection included the tank, <br /> tank appurtenances, tank foundation, and tank containment. In addition, PEI inspected all piping, piping <br /> connections and supports, and tank related electrical components from the first skin valve to the first flanged <br /> connection outside the containment. <br /> This report is generated on data gathered from three locations: applicable codes, regulations,and laws;the <br /> observed field conditions existent during the STI-SP001 inspection; and material provided in written form <br /> by the facility, end-user, or client (e.g., as-builts, previous inspection reports, written transcriptions of <br /> conversations with the facility). This inspection report is based solely on empirically observable conditions, <br /> observed during the inspection process and correspondence with the facility or end-user. <br /> The tank SS-1 is a 9.5-ft diameter x 15-ft tall, vertical cylinder with butt-welded horizontal shell welds and <br /> lap-welded vertical shell.The product stored in the tank is Tack Oil. <br /> Inspection Methods Results <br /> Goal Employed <br /> 1. Hydraulic .VT of tank a. Visual assessment and non-destructive testing performed did <br /> and bottom, not identify any key components that may affect the hydraulic <br /> Structural appurtenance, integrity ofthe tank. <br /> Integrity shell, piping, b. The inspection of the tank was performed while the tank was <br /> containment area in-service. Overall, the tank appears to be in good condition. <br /> for signs of c. No significant items were noted that would affect the structural <br /> product leakage. integrity ofthe tank. <br /> d. The tank does not have a bottom extension. The bottom <br /> extension is nearly flush with the shell rather than extending t- <br /> in. Knife-edge corrosion will affect the serviceability of the tank <br /> sooner with this condition. Monitor the bottom extension for <br /> signs for corrosion and applytouch-up coatings as needed. <br /> e. An unused 1-in conduit is present coming from the cone roof. <br /> This may be an abandoned conduit. Consider removing and <br /> oluaaina the conduit. <br /> 2. Release . VT of Release a. The tank is a shop-fabricated single wall steel tank built on a <br /> Detection Prevention concrete floor. The concrete floor extends under the tank floor <br /> Barrier RPB completely. <br /> • Review of b. Thetank has a release prevention barrier(RPB) in the form of <br /> Continuous a concrete dike secondary containment. At the time of <br /> Release inspection, the RPB was in good condition except for small <br /> Detection Method cracks in the containment wall. Consider repairing the cracks in <br /> CRDM the containment wall. Pressure wash the containment and fill <br /> any cracks in the containment with caulking. <br /> c. During periodic inspections monitor the containment for debris <br /> and remove as they arise. <br /> d. The tank may be categorized as an STI SP001 Category1. <br /> 3. Containment .Measure a. The dike area is concrete with minimal permeability. <br /> containment b.Thecontainment measures approximately 32"x 30'x 54'which <br /> • Determine has an approx. volume of 32,000 gallons. This is greater than <br /> permeability of 110%of the tank volume of 7,954 gallons. <br /> containment <br /> eBeINaEa4r1W4Y G1&N3x8e CtlePtlMt VLiP <br /> OID1P£Llrc <br /> Page 2 <br />