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CS)l SAFEWAYINC. <br /> 4TH &JACKSON STREETS " <br /> ® OAKLAND, CA 94660 MAR 1592 <br /> ENVIRONMEr,. . . j <br /> PERMIT/56:,;; <br /> March 26, 1992 <br /> Ms. Diane M. Hinson <br /> San Joaquin County <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> SUBJECT: Quarterly Groundwater Monitoring at the Safeway Meat <br /> Processing Facility, Located at 1111 Navy Drive, <br /> Stockton, California (Site Code 1194) <br /> Dear Ms. Hinson: <br /> On behalf of Safeway Xnc.,� ERM West collected groundwater samples <br /> from monitoring wells MW-4, MW-5 and MW-6 at the Safeway facility <br /> on Navy Drive on February 28, 1992 . The samples were analyzed for <br /> Total Petroleum Hydrocarbons (TPH) by EPA Method 8015 (Modified) <br /> and for Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) by EPA <br /> Method 602 . Groundwater from MW-6 was also analyzed for total <br /> Coliform Bacteria because of a nearby sewer line. <br /> Laboratory analyses showed TPH concentrations of less than 1 part <br /> per million (ppm) in MW-4 and MW-5. The TPH concentration in MW-6 <br /> was 1 .2 ppm. BTEX compounds were not found above the detection <br /> limit in the groundwater from these wells. Less than one Colony <br /> Forming Unit per 100 ml of sample was identified from the MW-6 <br /> sample analyzed for Total Coliform Bacteria. <br /> Following well development and purging, water samples were obtained <br /> by lowering a decontaminated Teflon bailer into the well . The <br /> sample water was immediately transferred by gently pouring the <br /> contents of the bailer into a clean volatile organic analysis (VOA) <br /> vial, filling it completely. Care was taken to minimize any <br /> agitation. of the water sample. The sample vial was then capped <br /> with a Teflon septum cap such that zero headspace was achieved, and <br /> no air bubbles were visible when turned upside-down. <br /> i? Recycled Paper <br />