ARCHIVED REPORTS XR0006246 - Laserfiche WebLink

Home Browse Search

MECIsION a INDUSTRIES June 15, 1987 I VINC G E N E R A L City of Stockton ENGINEERING public Works Department CONTRACTORS 425 N. E1 Dorado & S E R V I C E Stockton, CA 95202 S T A T I O N MAINTENANCE LICENSE NO 467293 Attention Director of lftlUty_��.u1Jon_ Re - Safeway Stores , Inc. Meat Processing Department 1111 Navy Drive, Stockton, CA 95204 Dear Sir, My firm, Precision Industries Inc. , has been engaged for the purpose of removing four 12,000 gallon underground storage tanks at the above named facility. All four tanks were new when installed and have contained diesel fuel only since that time. In the course of our work we have found that one tank, tank #3, has been subject to ground water intrusion. It is our assumption that the water has entered the vessel through a break in the tank wall . In the process of pumping tank #3 free of diesel after ' discovering the leak, some water was inadvertently added to tank #4. Approximately 12,000 gallons of water is present in both j tanks combined. We propose that the water be t► eated with a water oil separator system and an activated charcoal bed manufactured by Nelson Franklin Company. This proceedure will render the water free of hydrocarbons above 3 parts per million ' To verify hydrocarbon levels , the water will be held in above ground tanks on site with samples taken for analysis of total hydrocarbons. Weiss Associates, a geotechnical firm, will be responsible for taking samples and chain of custody Brown and Caldwell , a state certified water lab, will }.perform the analysis The results of sampling will be submitted to the director of utilities before the water can be released into the sanitary 1 ' 2191 NAVY DR STOP:LION CALIFC)RNIA 95206 209, 462-9911 : OCU/3.31-5cuo