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A g <br /> Y <br /> 91 <br /> 5- <br /> I+N <br /> W <br /> Coca-Cola Enterprises-West <br /> �. Job No.90054.03 <br /> The analytical test results indicated a presence of lead in all groundwater monitoring wells. <br /> Lead concentrations ranged from 68 ppm in MW-2 to 14 ppm in MW-3. <br /> 5.0 SUMMARY AND CONCLUSIONS <br /> ! i <br /> t <br /> Six existing groundwater monitoring wells were monitored and sampled in December 1990 by <br /> s ' ' USTEC personnel. Groundwater monitoring results indicates that the groundwater flow is <br /> -� generally to the northeast which is consistent with previous monitoring results. <br /> k ' <br /> j <br /> Groundwater contamination exists at this site at concentrations above the State of California <br /> recommended action limits for benzene (0.7 ppb). Concentrations of TPH as gasoline and <br /> ` benzene were found to be present in all of the six existing wells of the site. No detectable <br /> ;,. concentrations of TPH as diesel were reported compared with previously reported diesel <br /> E <br /> concentrations. Lead was reported in all of the groundwater monitoring wells at the site. <br /> 6.0 RECOMMENDATIONS <br /> USTEC recommends that quarterly monitoring of the site continues. The next quarterly <br /> w, monitoring and sampling will be conducted in June 1991 with the report being completed in July <br /> s � 1991. A copy of this report should be forwarded to: <br /> Mr.Steven K. Schneider <br /> San Joaquin County Public Health Service <br /> Environmental Health Division <br /> 445 North San Joaquin Street <br /> Stockton,Califs-nia 95201 <br /> Mr.James Maughan <br /> Central Valley Regional Water Quality Control Board <br /> k-: 3443 Routier Road <br /> Sacramento,California 95827-3098 <br /> 5 <br /> i <br />