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Overfill Prevention Equipment Inspection <br /> 4-A;Tanknology OPW 61 and 71 Series Overfill Prevention Device Inspection <br /> Date: 12/18/2020 <br /> Customer Name: 7-ELEVEN, INC. <br /> Location#: 7 ELEVEN 35355 <br /> Location Address: 3202 W HAMMER LANE(N-136) ,STOCKTON CA,95209 <br /> DPW Model Number: <br /> T1: <br /> PART 1)Proper height setting calculation <br /> Maximum Tank Volume per:Tank Chart Agallons 10369.000 <br /> Max shut off requirement for Flapper is 95% sg5i 0.95 0.95 0.95 0.95 <br /> Multiply Maximum tank volume by 95% C gallons 9850.550 <br /> Use tank chart to determine height of calculated volume D inches 104.625 <br /> Measure top of fill riser threads,or face seal adapter when used,to tank top E inches 36.000 <br /> Tank diameter From Chart F inches 117.750 <br /> Upper Tube in tank(G) F-D=G c inches 13.125 <br /> Subtract 2 inches from upper tube in tank G-2"=H H inches 11.125 <br /> Calculated minimum upper tube length (1)H+E=I (inches 47.125 <br /> Actual measured upper tube length (Without fill <br /> finches 48.125 <br /> adapter)(J) <br /> PART 2)Device certification criteria evaluation <br /> Criteria 1 Yes <br /> Does the overfill prevention device meet the 95%requirement? <br /> Criteria 1 a If the final shutoff volume is installed greater than 95%, is there at <br /> least 250 gallons of ullage above the overfill device activation point NA <br /> to ensure that none of the tank top fittings are exposed to product, <br /> meeting the criteria established in EPA 280.20iic and per OPW <br /> installation guidelines. <br /> Criteria 2 Is the Actual measured upper tube length 6.5 inches Yes <br /> or more than the fill riser?(J must be 6.5"or more <br /> than E) <br /> Criteria 3 Does the overfill prevention device function as <br /> required?(Inspect the device for damage, Yes <br /> contamination,freedom of movement, <br /> weakening due to wear and corrosion) <br /> PART 3)Device Certification PASS/FAIL <br /> Pass <br /> Technician certifies that the device is operationally <br /> compliant. <br /> Comments: <br /> Signature of Technician: Date: <br /> 12/18/2020 <br /> Jesus Saldivar <br /> WO: NW1-2349576 <br />