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t � / <br /> r { 0 <br /> 1} <br /> SKTH <br /> ENVIRONMENTALTECNNOLOGlESCORPORATION <br /> June 14, 1996 <br /> 94334 <br /> Ms. Mary Meays <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P.O. Box 388 <br /> Stockton, CA 95201-0388 <br /> Subject- First Quarter 1996 Groundwater Monitoring for KOK Realty, 2403 West Navy <br /> Drive, Stockton, California <br /> Dear Ms. Meays- <br /> This letter report presents field work conducted by Smith Environmental Technologies <br /> Corporation at 2403 West Navy Drive, Stockton, California during the first quarter of 1996. <br /> The site location is shown on Figure 1 <br /> BACKGROUND <br /> The site was the location of one underground storage tank. In response to a San Joaquin <br /> County Public Health Services, Environmental Health Division (PHS/EHD) request for a <br /> subsurface investigation, RESNA Industnes, Inc (RESNA) was engaged by the law firm of <br /> McDermott, Will & Emery to assess the nature and extent of soil and groundwater <br /> contamination at the site. <br /> In early 1992, a RESNA field geologist observed the drilling of three soil bonngs (MWI, <br /> MW2, and MW3) at the site to characterize subsurface conditions Groundwater was <br /> encountered at a depth of approximately 15-16 feet below ground surface. The bonngs were <br /> advanced to a depth of approximately 30 feet below grade and subsequently converted to <br /> groundwater monitoring wells <br /> Laboratory analysis of soil samples collected from the three bonngs determined that petroleum <br /> hydrocarbon constituents were detected in the soil within 4-5 fMet of the static water levels at <br /> the site Laboratory analysis of groundwater samples collected from the wells subsequent to <br /> development indicated that gasoline constituents were present above laboratory method <br /> detection limits in the groundwater samples collected from each site monitoring well. Initial <br /> .34QUAR7LYM QR 1996.DW <br /> 1260 Graphics Drive Modesto,CA 95351-1502 (209)579-2221 Fax(209)579-2225 <br /> Engineering Consulting Remediation Construction <br />