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WALTON <br /> ENGINEERING , INC . <br /> Overfill Prevention Inspection - OPW 61 and 71 Series Devices <br /> Date : 9/24/2018 <br /> Owner: <br /> Facility : Quik Stop # 121 <br /> OPW Overfill Model Number: 61 SO <br /> Part 1 - Proper Height Setting Calculation 7 91 <br /> Tank 1 Tank 2 Tank 3 Tank 4 <br /> Maximum Tank Volume Per: A Gallons 11527 11527 <br /> Max shut off requirement for flapper is 95 %n n 95 % . 95 . 95 <br /> Multiply Max tank volume by 95 % C Gallons 10950 10950 <br /> Use tank chart or ATG to determine height of D Inches 801 /2 it 801 /2 it <br /> calculated volume <br /> Measure top of fill riser threads, or face seal E Inches 383/4 to 403/4 <br /> adapter <br /> Tank diameter (From Tank Chart) F Inches 893/4 to 893/4 it <br /> Upper Tube in Tank (G) F-D = G G Inches 93/4 93/4 <br /> Subtract 2 " from upper tube in tank G-2 " = K K Inches 73/4 73/4 <br /> Calculated minimum upper tube length 0 ) I Inches 46 48" <br /> K+E=I <br /> Actual measured upper tube length ( Without J Inctles 463/4 481 /4 <br /> fill adapter) (J) <br /> Part 2 - Device Certification Criteria Evaluation <br /> Does the overfill prevention device meet the 95 % Yes Yes <br /> requirement? <br /> Is the actual measured upper tube length 6 . 5 inches or Yes Yes <br /> more than the till riser? (J 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 Yes <br /> movement, weakening due to wear and corrosion) <br /> Device Overfill Certification PASS / FAIL Pass Pass <br /> Drop Tube Testing PASS / FAIL Pass Pass <br /> Technician certifies that the device is operationally comp ] iant . <br /> Signature of Technician Date ; 9/24/18 <br /> Technician ' s Name : Jua Jam i <br />