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moi. Tanknology <br />Overfill Prevention Equipment Inspection <br />OPW 61 and 71 Series Overfill Prevention Device Inspection <br />Date: <br />10/22/2020 <br />Customer Name: <br />7 -ELEVEN, INC. <br />Location #: <br />7 -ELEVEN 14113, MKT 2368 <br />Location Address: <br />3040 BENJAMIN HOLT DR @ GRIGSBY ,STOCKTON ,CA , 95219 <br />OPW Model Number: <br />71so <br />PART 1) Proper height setting calculation <br />Maximum Tank Volume per: Tank Chart Agallons <br />Max shut off requirement for Flapper is 95% B 95% <br />Multiply Maximum tank volume by 95% C gallons <br />Use tank chart to determine height of calculated volume D inches <br />Measure top of fill riser threads, or face seal adapter when used, to tank top E inches <br />Tank diameter From Chart Finches <br />Upper Tube in tank (G) F - D = G <br />Subtract 2 inches from upper tube in tank G - 2"= H <br />G inches <br />H inches <br />Calculated minimum upper tube length (1) H + E = I i inches <br />Actual measured upper tube length (Without fill <br />J inches <br />adapter) (J) <br />PART 2) Device certification criteria evaluation <br />Criteria 1 <br />Does the overfill prevention device meet the 95% requirement? <br />87 <br />14781.000 <br />91 <br />9684.000 <br />0.95 <br />0.95 <br />0.95 <br />0.95 <br />14041.950 <br />9199.800 <br />82.000 <br />80.500 <br />40.750 <br />42.625 <br />90.375 <br />89.750 <br />8.375 <br />9.250 <br />6.375 <br />7.250 <br />47.125 <br />49.875 <br />48.500 <br />50.625 <br />Yes Yes <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 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 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 Yes <br />contamination, freedom of movement, <br />weakening due to wear and corrosion) <br />PART 3) Device Certification PASS / FAIL <br />Pass Pass <br />Technician certifies that the device is operationally <br />compliant. <br />;omments: <br />Signature of Technician: Date: 10/22/2020 <br />Clint Fuhrman <br />WO: NW1- 2347660 <br />