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I� 1J <br /> . wells at concentrations ranging from 2 1 ppb(MW-5) to 56 ppb(MW-3) Additionally,domestic well WSW was <br /> sampled for TPHg,benzene,toluene,ethylbenzene,and total xylenes (BTEX),MtBE,and fuel oxygenates,all of <br /> which were reported as nondetectable Chemical concentrations were generally consistent with historical data <br /> Groundwater flow was to the northwest at an approximate gradient of 0 002 ft/ft,which is generally consistent with <br /> historical data Groundwater elevations across the site decreased by an average of 1 33 ft <br /> SECOR is currently obtaining access agreements from the owners of Weinerschnitzel Restaurant and Denny Boy <br /> Restaurant/Auto Factory in order to sample domstic wells DW-1 and DW-2 Once access agreements are obtained, <br /> domestic wells DW-1 and DW-2 will be incorporated into quarterly groundwater sampling until otherwise directed <br /> by the San Joaquin County Environmental Health Division During a telephone conversation on January 11,2002 <br /> with Mr John Lee,owner of Denny Boy Restaurant and Auto Factory properties,domestic well DW-3 was <br /> determined to be a sewage pump and not a domestic well Mr Lee stated that the only domestic well on his property <br /> is well DW-2 located on the northeastern portion of the Auto Factory property On January 17,2002,SECOR <br /> personnel verified that domestic well DW-3 was a sewer pump and not a domestic well <br /> This report presents our understanding of existing conditions at the subject site The conclusions contained herein <br /> are based on the analytical results,and professional judgment in accordance with current standards of professional <br /> practice,no other warranty is expressed or implied SECOR assumes no responsibility for exploratory borings or <br /> data reported by other consultants or contractors <br /> ATTACHMENTS: <br /> • Table 1 - Groundwater Elevation and Analytical Data <br /> • Table 2-Fuel Oxygenates Analytical Data <br /> • Table 3 - Groundwater Gradient Data <br /> • Figure 1 -Groundwater Elevation Contour Map <br /> • Figure 2-Groundwater Concentration Map <br /> • Attachment A-Field and Laboratory Procedures <br /> • Attachment B -Certified Laboratory Analytical Reports,Chain-of-Custody Documentation,and Field <br /> Data Sheets <br /> cc Mr Marty Hartzell,Regional Water Quality Control Board-Central Valley Region(RWQCB-CVR) <br /> Ms Lori Duncan,SJCPHS <br /> Ms Madeline Scannavino,5463 Cherokee Rd,Stockton,CA 95205 <br /> • <br />