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WALTON - <br />ENGINEERING, INC. <br />Overfill Prevention Inspection - OPW 61 and 71 Series Devices <br />Date: 10/5/2018 <br />Owner: <br />Facility:_ Colonial Energy #40134 <br />OPW Overfill Model Number: 71 SO <br />Part 1 - Proper Height Setting Calculation <br />Part 2 - Device Certification Criteria Evaluation <br />Does the overfill prevention device meet the 95% <br />requirement? <br />Yes <br />Tank 1 <br />Tank 2 <br />Tank 3 <br />Tank 4 <br />Maximum Tank Volume Per: <br />A Gallons <br />12032 <br />10026 <br />more than the fill riser? (J must be 6.5" or more than E) <br />Max shut off requirement for flapper is 95% <br />B 95% <br />.95 <br />.95 <br />Multiply Max tank volume by 95% <br />C Gallons <br />11430 <br />9525 <br />Yes <br />Use tank chart or ATG to determine height of <br />calculated volume <br />D Inches <br />86 3/8" <br />86 3/8" <br />Measure top of fill riser threads, or face seal <br />adapter <br />E Inches <br />41 " <br />42 7/8" <br />Tank diameter (From Tank Chart) <br />F Inches <br />95.75 <br />95.75" <br />Upper Tube in Tank (G) F -D = G <br />G Inches <br />9 3/8" <br />9 3/8" <br />Subtract 2" from upper tube in tank G-2"= K <br />K Inches <br />7 3/8" <br />7 3/8" <br />Calculated minimum upper tube length (I) <br />K+E=I <br />I Inches <br />48 3/8" <br />50 1/4" <br />Actual measured upper tube length (Without <br />fill adapter) J <br />J Inches <br />48 7/8" <br />50 112" <br />Part 2 - Device Certification Criteria Evaluation <br />Does the overfill prevention device meet the 95% <br />requirement? <br />Yes <br />Yes <br />Drop Tube Testing PASS / FAIL <br />Is the actual measured upper tube length 6.5 inches or <br />Yes <br />Yes <br />more than the fill 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 <br />Yes <br />Yes <br />movement, weakening due to wear and corrosion <br />Device Overfill Certification PASS / FAIL <br />Pass <br />Pass <br />Drop Tube Testing PASS / FAIL <br />Pass <br />Pass <br />Technician certifies that the device is operationally compliant. <br />Signature of Technician: �� Date: 10/5/18 <br />Technician's Name: Nick Janoe <br />