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PRECISION <br /> INDUSTRIES <br /> June 15, 1987 'tQJ <br /> J 1;111 1 1987. <br /> VINC.J <br /> ENVIROMENTAL HEALTH <br /> G E N E R A L City of Stockton FERMITJSERVICES, <br /> ENGINEERING Publis Works Department <br /> CONTRACTORS 425 N. E1 Dorado <br /> & S E R V I C E Stockton, CA 95202 <br /> S T A T I O N <br /> MAINTENANCE Attention: Director of UtjW_t"..Q* 'sion <br /> LICENSE NO. 467293 �- <br /> Re: Safeway Stores, Inc. Meat Processing Department <br /> 1111 Navy Drive, Stockton, CA 95204 <br /> Dear Sir, <br /> My firm, Precision Industries Inc. , has been engaged for the <br /> purpose of removing four 12,000 gallon underground storage tanks <br /> at the above named facility. <br /> All four tanks were new when installed and have contained <br /> diesel fuel only since that time. <br /> In the course of our work we have found that one tank, tank <br /> #3, has been subject to ground water 1 ntrusion. It is our <br /> assumption that the water has entered •the vessel through a break <br /> in the tank wall . <br /> In the process of pumping tank #3 free of diesel after <br /> discovering the leak, some water was inadvertently added to tank <br /> -#4: -- � <br /> Approximately 12,000 gallons of water is present in both <br /> tanks combined. We propose that the water be treated with a <br /> water oil separator system and an activated charcoal bed <br /> manufactured by Nelson Franklin Company. This proceedure will <br /> rend the water free of- hydrocarbons above 3 parts per million. <br /> - -— To verify hydrocarbon levels, the water will be held in <br /> above ground tanks on site with samples taken for analysis of <br /> total hydrocarbons. Weiss Associates, a geotechnical firm, will <br /> be responsible for taking samples and chain of custody. Brown <br /> and Caldwell , a state certified water lab, will perform the <br /> analysis. <br /> The results of sampling will be submitted to the director of <br /> utilities before the water can be released into the sanitary <br /> 2191 NAVY DR.,STOCKTON,CALIFORNIA 95206 • 209/462-991'1 • 300/332-5900 <br />