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SHI�RLFY <br />Environmental Testin& Inc. <br />Mr. Rick Dow <br />Bums & McDonnnell <br />1101 Woodbridge Dr. <br />Melena, MT 59601 <br />Subject: Line Tightness Test Results <br />Location: Flying J - Ripon, 1501 North Jack Tone Road, Ripon, California 95366 <br />This letter, report, and enclosures document the results of the teak detection services performed by <br />Shirley Enviro Testing, L.L.C. at the above referenced site. Actual field work was performed April <br />11, 1997. <br />`F1-MML1T6T*T, *61AYLS] N <br />The scope of work included: <br />* Performing volumetric line tests on six pressurized product lines associated with the fueling <br />systems utilizing the AcuRite® line tester. <br />* Simulating a fuel release on six product lines to determine if the mechanical line leak detectors <br />are operating properly. <br />The AcuRite® volumetric product line testing method was utilized to evaluate possible volume <br />losses from the pressurized product delivery system(s). Line tests are conducted at a pressure <br />greater or equal to 1.5 times operating pressure. According to industry evaluation, the AcuRite® <br />line tester has a confidence of 100% when leaks in excess of 0.10 gallons per hour (gph) are <br />measured at 10 psi. The tester has a sensitivity of 0.001 gph and a leak is indicated by a measured <br />leak rate of 0.01 gph or greater 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 <br />restricted during the leak simulation the LD passes, if flow is not restricted during the leak <br />simulating the LD fails. <br />1240 N. 19th St., P.Q. Box 219 e Nebraska City, NE 68410 <br />(402) 873-4077 Watts (800)-447-3490 Fax (402) 873-4094 <br />