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WALTON _ <br /> ENGINEERING , INC. <br /> Overfill Prevention Inspection - OPW 61 and 71 Series Devices <br /> Date : 8/2/2021 <br /> Owner: Quik Stop Market #39 <br /> Facility : 2285 E fremont <br /> OPW Overfill Model Number: 61 /71 SO <br /> Part 1 - Proper Height Setting Calculation <br /> Tank 1 Tank 2 Tank 3 Tank 4 <br /> Maximum Tank Volume Per: A Gallons 12000 <br /> Max shut off requirement for flapper is 95% B 95% 95 <br /> Multiply Max tank volume by 95% C Gallons 11400 <br /> Use tank chart or ATG to determine height of D Inches 86 .25 <br /> calculated volume <br /> Measure top of fill riser threads, or face seal E Inches 49 . 5 <br /> adapter <br /> Tank diameter (From Tank Chart) F Inches 89 . 75 <br /> Upper Tube in Tank (G) F-D = G G Inches 3 . 5 <br /> Subtract 2 " from upper tube in tank G-2 "= K K Inches 1 . 5 <br /> Calculated minimum upper tube length (I) I Inches 51 <br /> K+E=I <br /> Actual measured upper tube length (Without J Inches 58 . 75 <br /> fill adapter) <br /> Part 2 - Device Certification Criteria Evaluation <br /> Does the overfill prevention device meet the 95 % Yes <br /> requirement? <br /> Is the actual measured upper tube length 6 . 5 inches or Yes <br /> more than the fill riser? (I must be 6 . 5 " or more than E) <br /> Does the overfill prevention device function as required? <br /> (Inspect the device for damage, contamination, freedom of Yes <br /> movement, weakening due to wear and corrosion <br /> Device Overfill Certification PASS / FAIL PASS <br /> Drop Tube Testing PASS / FAIL PASS <br /> Technician certifies that the device is operationally compliant. <br /> Signature of Technician : MAXWELL HINES Date : <br /> Technician' s Name : MAXWELL HINES <br />