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/ Overfill Prevention Equipment Inspection <br /> .f. Tanknology OPW 61 and 71 Series Overfill Prevention Device Inspection <br /> Date : 10/ 11 /2018 <br /> Customer Name : 7-ELEVEN , INC . <br /> Location #: 19976 <br /> Location Address : 1399 N . MAIN ST. @ NORTHGATE , MANTECA , CA , 95336 <br /> OPW Model Number: 71so <br /> 4 : UNLEADED T5 : PREMIUM <br /> PART 1 ) Proper height setting calculation <br /> Maximum Tank Volume per: Tank Chart Agallons 14781 9684 <br /> Max shut off requirement for Flapper is 95 % B 95% 0 . 95 0 . 95 0 . 95 0 . 95 <br /> Multiply Maximum tank volume by 95 % C gallons 14041 . 950 9199 . 800 <br /> Use tank chart or ATG to determine height of calculated volume D inches 81 . 000 80 . 375 <br /> Measure top of fill riser threads , or face seal adapter Einches 29 . 500 27 . 875 <br /> Tank diameter From Chart F inches 90 . 375 89 . 750 <br /> Upper Tube in tank (G ) F - D = G G inches 9 . 375 9 . 375 <br /> Subtract 2 inches from upper tube in tank G - 2 "= K K inches 7 . 375 7 . 375 <br /> Calculated minimum upper tube length ( I ) K + E = I I inches 36 . 875 35 . 250 <br /> Actual measured upper tube length (Without fill <br /> J inches 39 . 000 36 . 563 <br /> adapter) (J) <br /> PART 2 ) Device certification criteria evaluation <br /> Criteria 1 Yes Yes <br /> Does the overfill prevention device meet the 95 % requirement? <br /> Criteria 2 Is the Actual measured upper tube length 6 . 5 inches <br /> or more than the fill riser? (J must be 6 . 5" or more Yes Yes <br /> than E) <br /> Criteria 3 Does the overfill prevention device function as <br /> required ? ( Inspect the device for damage, <br /> contamination , freedom of movement, Yes Yes <br /> weakening due to wear and corrosion) <br /> PART 3) Device Certification PASS / FAIL <br /> Technician certifies that the device is operationally <br /> compliant. If the response to Criteria 1 , 2 and 3 above Pass Pass <br /> are YES <br /> Comments : <br /> Signature of Technician : Date : 10/ 11 /2018 <br /> Darren Sciume <br /> WO : NW1 - 2338748 <br />