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'cont. <br /> There were no comments from either the testing or repair personnel <br /> that fuel had been released into the soil creating an unauthorized <br /> leak situation. <br /> Store #1339 1225 W. Lockford, Lodi CA. <br /> 1986, The regular and Premium unleaded tanks tested "tight". <br /> The unleaded tank failed (6/18/86). The test data sheet is <br /> enclosed. The temperature compensation use factor (1137) indicated <br /> uniformity and the net volume change column (1138) indicates settled <br /> loss rate of -.242 gallons per hour (-.242 x 2 hrs 484 gallons <br /> loss). The low level accumulated change column (#39) reveals a loss <br /> rate of -.388 gallons per hour (-.388 x 1 hr =. 388 gallons loss). <br /> The loss as calculated is assuming that the only tank variable is due <br /> to loose vent pipe connector and not partially due to other <br /> variables. The lines were exposed and vent line repaired and a <br /> retest on Aug. 26, 1986 indicated the tank to be "tight". There were <br /> no reports or comments from the test or repair personnel that fuel <br /> had been released into the soil. <br /> 1987 All tanks tested "tight". <br /> 1988 The unleaded and premium unleaded tanks and lines tested <br /> "tight". The regular tank test was discontinued due to equipment <br /> problems (4/13/88). On 4/20/88 the vent and vapor line were exposed <br /> and tested with nitrogen. A vapor-vent valve was installed for <br /> isolation purposes. On 5/6/88 the regular tank and lines were <br /> retested and certified "tight". There were no reports or comments <br /> from either the test or repair personnel that any fuel from the <br /> regular tank had been released into the soil creating an unauthorized <br /> leak situation. Since the test procedures were discontinued, there <br /> was no calculated leak rates on the data sheet. <br /> Store #79702 1250 N Wilson Way and Harding Way Stockton, CA. <br /> Note: Circle K Corporation acquired possession of this store from <br /> Thrifty Oil Company on 1/11/89. The lease agreement with Thrifty <br /> states that Thrifty is responsible for remediation of any and all <br /> contamination prior to our acquisition date of 1/11/89. <br /> 1988 All tanks and lines tested "tight". Thrifty Oil Company has not <br /> furnished Circle K with copies of the 1986 and 1987 tank tests for <br /> this store. <br /> I trust this will satisfy your request. <br /> Yours truly,, <br /> 4r>4 <br /> Pat Wright <br /> Environmental Director <br /> PW:ls <br /> enc <br />