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C <br />nviwnrnantal Tasting, .L.L.C. <br />May 27, 1999 <br />Don `•a • <br />Flying J, Inc. <br />4185 Harrison Blvd., <br />Ogden,1 <br />Subject: Line Tightness Test Results <br />Location: <br />Flying J Travel Plaza — Ripon <br />1501 N. Jack Tone Rd. <br />Ripon, CA 95366 <br />Dear Mr. Rogdon:.., <br />This letter, report, and enclosures document the results of the leak detection services performed by <br />Shirley Environmental Testing, L.L.C. at the above referenced site. Actual field work was performed <br />May 17, 1999. <br />aUt 0&1 61al**Y;VI• It II <br />The scope of work included: <br />* Performing volumetric line tests on pressurized product line(s) associated with the fueling systems <br />utilizing the AcuRite® line tester. <br />* Simulating a fuel release on product line(s) to determine if the mechanical line leak detectors are <br />operating properly. <br />The AcuRiteg volumetric product line testing method was utilized to evaluate possible volume losses <br />from the pressurized product delivery system(s). Line tests are conducted at a pressure greater or equal <br />to 1.5 times operating pressure. According to industry evaluation, the AcuRite® line tester has a <br />confidence of 100% when leaks in excess of 0.10 gallons per hour (gph) are measured at 10 psi. The <br />tester has a sensitivity of 0.001 gph and a leak is indicated by a measured leak rate of 0.01 gph or greater <br />at 1.5 times operating pressure. <br />The operation of the in line mechanical leak detectors (LDs) associated with the pressurized fueling <br />systems were evaluated by simulating a fuel release in the pressurized product lines. If flow is restricted <br />during the leak simulation the LD passes, if flow is not restricted during the leak simulating the LD fails. <br />P.O. Box 219 a Nebraska City, UE 68410 <br />(402) 873-40,77 - Watts (800) 447-3490 - Fax (402) 873-4094 <br />