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Ultramar <br />Ultramar Inc. <br />P.O. Box 466 <br />525 W. Third Street <br />Hanford, CA 93232-0466 <br />(209)582-0241 <br />December 28, 1990 <br />Mr. Charlie Hunt <br />COUNTY OF SAN JOAQUIN <br />Local Health District <br />P.O. Box 2009 <br />Stockton, CA 95201 <br />Dear Mr. Hunt: <br />Re: Beacon Station #610 <br />3300 Waterloo Road <br />Stockton, CA 95205 <br />Telecopy: 209-584-6113 Credit & Wholesale <br />209-583-3330 Administrative <br />209-583-3302 Information Services <br />209-583-3358 Accounting <br />a7 <br />JRN3 0`1 <br />Pi.R'MiIl� <br />On September 15, 1990, the diesel and regular tanks failed the PetroTite <br />test. <br />On September 24, B&C Construction completed the following: <br />° Tested vent line with helium held 50 psi for one hour <br />° Replaced overspill bucket <br />° Retested uncovered diesel tank - tank failed test again. <br />Gold Coast Lining opened up the tank to check the integrity of the <br />lining. A holiday test was performed --no holiday were found. The tank <br />was resealed and retested with the NDE test. The tank passed the test. <br />The overspill bucket was replaced on the regular tank and retested using <br />the NDE test. The tank passed the test. <br />There were visual signs of contamination. No soil samples were done. <br />Should you have any questions, please call me at (209)583-5598. <br />Very truly yours, <br />ULTRAMAR INC. <br />Sandy Huf <br />Project Engineer I Environmental <br />SJH/jsm <br />1019i <br />A Member of the Ultramar Group of Companies <br />BEAC-:: N <br />#1 Quality and Service <br />