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F � w <br /> THE <br /> SOUTHLAND <br /> CORPORATION w r` <br /> December 22, 1988 V <br /> San Joaquin County Dept. of Environmental Health <br /> c/o Mr. Jaime Favila <br /> P.O. Box 2009 <br /> Stockton, Ca 95201 <br /> Ih= Re: 7-Eleven Store #20304 <br /> 455 West Grantline Road <br /> Tracy, Ca 95376 <br /> Dear Mr. Favila <br /> I am responding to your questions concerning the gasoline <br /> facility at the above mentioned site. ' I : understand your questions <br /> to be: <br /> During the precision test of Mardh 27, 1986 when all <br /> tanks are shown to have failed, was `;more than 1 gallon <br /> lost during the test? <br /> What was the cause of the failure? ; <br /> Regular Tank- Failed at a rate of -'.455 :GPH: On 10--27-86 the <br /> fill riser was removed, inspected and tightened. No other <br /> repairs were observed to be needed. T_hetank system passed <br /> precision testing on 10-27-86. Because a precision test requires <br />` four hours or more to conduct, it is assumable that more than <br /> .1 gallon was lost during the test. <br /> Premium Tank- Was found to be inconclusive at a leak rate of <br /> +. 265 . 10-27-86 no repairs were made, the tank system was <br /> retested and passed. It is assumed that no fuel was lost. <br /> No Lead Tank-- Failed at a rate of 7144. 10-27-86- the fill <br /> riser was removed, inspected and tightened. A precision test <br /> was conducted on 10-27-86 which indicated a loss rate of -.092 <br /> GPH. No other repairs could be made to the tank vessel. It <br /> was assumed that the tank itself was lea'ing. The tank was pumped <br /> empty and abandoned. ' On 11-05-86 an unauthorized release report <br /> was filed with San Joaquin County and 'other appropriate agencies. <br /> A review of our file should reveal a thorough assessment of the <br /> SOUTHLAND ENVIRONMENTAL SERVICES/ LOCATION 2987 <br /> 5820 STONERIDGE MALL ROAD/SUITE 310/ P.O. BOX 404/PLEASANTON, CA. 94566/PHONE (415) 463-2711 <br /> FAX (415)463-3378 <br />