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r <br /> TABLE 6 <br /> MAROS Results for Individual Wells <br /> Rough and Ready Island <br /> Stockton,California <br /> Linear Median Mean <br /> Number of Number of All Samples Mann Kendall Regression Concentration Concentration <br /> Constituent Well Samples Detects Non Detect Trend Trend (ug/L) (ug/L) <br /> RICHLOROETHYLENE(TCE) W4157 8 0 Yes ND NO 0.53 1.5 <br /> VINYL CHLORIDE V,1157 8 0 Yes ND ND 0.18 1.3 <br /> TOTAL 1,2-DICHLOROETHYLENE W-157 8 1 No D D 0.63 1 9 <br /> BENZENE W-158 5 0 Yes NO NO 0.25 2.1 <br /> ETRACHLOROETHYLENE(PCE) W-158 5 0 Yes NO NO 1 2.4 <br /> RICHLOROETHYLENE(TCE) W-158 5 0 Yes ND ND 1 2.4 <br /> VINYL CHLORIDE W-158 5 0 Yes ND NO 0.25 2.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-158 5 0 Yes NO ND 1 2.5 <br /> BENZENE W-160 5 0 Yes ND ND 0.25 2.1 <br /> ETRACHLOROETHYLENE(PCE) W-160 5 0 Yes NO ND 1 2.4 <br /> RICHLOROETHYLENE(TCE) W-160 5 0 Yes ND ND 1 2.4 <br /> VINYL CHLORIDE V11160 5 0 Yes ND NO 0.25 2.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-160 5 0 Yes ND ND 1 2.5 <br /> BENZENE W-161 10 0 Yes ND ND 0,05 1.1 <br /> ETRACHLOROETHYLENE(PCE) W-161 10 0 Yes ND ND 0.05 1.2 <br /> RICHLOROETHYLENE(TCE) W-161 10 0 Yes ND NO 0.05 1.2 <br /> VINYL CHLORIDE M161 10 1 No D D 0.075 1.2 <br /> TOTAL 1,2-DICHLOROETHYLENE W-161 10 0 Yes ND ND 0.25 1.5 <br /> BENZENE W-162 10 0 Yee NO ND 0.05 1.1 <br /> ETRACHLOROETHYLENE(PCE) W-162 10 0 Yes ND ND 0.075 1.2 <br /> RICHLOROETHYLENE(TCE) W-162 10 0 1 Yes ND NO 0.05 1.2 <br /> VINYL CHLORIDE W-162 10 0 Yes ND ND 0.075 1.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-162 10 0 Yes ND ND 0.25 1.4 <br /> BENZENE W164 8 0 Yes ND NO 0.15 1.3 <br /> ETRACHLOROETHYLENE(PCE) W-164 8 0 Yes ND NO 0.53 1.5 <br /> RICHLOROETHYLENE(TCE) W-164 8 o Yes ND ND 0.53 1.5 <br /> VINYL CHLORIDE W-164 8 o Yes ND ND 0.15 1.3 <br /> TOTAL 1,2-DICHLOROETHYLENE W-164 8 0 Yes ND NO 0.63 1.8 <br /> BENZENE M166 9 0 Yes ND ND 0.05 1.2 <br /> ETRACHLOROETHYLENE(PCE) W-166 9 0 Yes ND NO 0.05 1.4 <br /> RICHLOROETHYLENE(TCE) W 166 9 0 Yes ND NO 0.05 1.4 <br /> VINYL CHLORIDE VIL166 9 4 No D D 0.6 1.7 <br /> TOTAL 1,2-DICHLOROETHYLENE W-166 9 2 No D D 0.5 1.9 <br /> BENZENE W-167 8 0 Yes ND ND 0.15 1.3 <br /> ETRACHLOROETHYLENE(PCE) W-167 8 0 Yes ND NO 0.53 1.5 <br /> RICHLOROETHYLENE(TCE) W-167 8 0 Yes ND ND 0.53 1.5 <br /> VINYL CHLORIDE W-167 8 0 Yes NO ND 0.15 1.3 <br /> TOTAL 1,2-DICHLOROETHYLENE W-167 8 0 Yes NO ND 0,63 1.6 <br /> BENZENE W-169 8 0 Yes ND NO 0.15 1.3 <br /> ETRACHLOROETHYLENE(PCE) W-169 8 0 Yes ND NO 0,53 1.5 <br /> RICHLOROETHYLENE(TCE) W-169 8 0 yes ND ND 0.53 1.5 <br /> VINYL CHLORIDE W-169 8 1 No D D 0.15 1.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-169 8 0 Yes ND NO 0.63 1.6 <br /> BENZENE W-172 7 o Yes ND NO 0.05 1.5 <br /> ETRACHLOROETHYLENE(PCE) W-172 7 7 No D 0 2 2.2 <br /> RICHLOROETHYLENE(TCE) W-172 7 7 No D D 1.9 3 <br /> VINYL CHLORIDE W-172 7 0 Yes ND NO 0.05 1.5 <br /> TOTAL 1,2-DICHLOROETHYLENE W-172 7 7 No S ❑ 5 5.2 <br /> BENZENE W-173 11 0 Yes NO ND 0.05 0.99 <br /> ETRACHLOROETHYLENE(PCE) W-173 11 0 Yes ND NO 0.05 1.1 <br /> RICHLOROETHYLENE(TCE) W-173 11 6 No D D 0.5 0.65 <br /> INYLCHLORIDE W-173 11 10 No D D 2.3 4 <br /> TOTAL 1,2-OICHLOROETHYLENE W-173 11 11 No D ❑ 47 55 <br /> BENZENE W-174 11 0 Yes ND NO 0.05 0.99 <br /> ETRACHLOROETHYLENE(PCE) M174 11 0 Yes ND NO 0.05 1.1 <br /> RICHLOROETHYLENE(TCE) W-174 11 0 Yes ND ND 0.05 Li <br /> VINYL CHLORIDE M174 11 10 No NT NT 3.2 4.8 <br /> TOTAL 1,2-0ICHLOROETHYLENE W-174 11 11 No S S 2 2.6 <br /> BENZENE W-175 9 0 Yes ND ND 0A5 1.2 <br /> ETRACHLOROETHYLENE(PCE) W-175 9 0 Yes ND NO 0.05 1.4 <br /> RICHLOROETHYLENE(TCE) M175 9 0 Yes ND ND 0.05 1.4 <br /> VINYL CHLORIDE W-175 9 3 No 0 D 0.1 0,94 <br /> TOTAL 1,2-DICHLOROETHYLENE M175 9 3 No D D 0.25 1.4 <br /> BENZENE W-176 11 6 Ves ND NO 0,05 0.99 <br /> ETRACHLOROETHYLENE(PCE) W-176 11 0 Yes NO ND 0.05 1.1 <br /> RICHLOROETHYLENE(TCE) W-176 11 0 Yes ND NO 0.05 1.1 <br /> VINYL CHLORIDE M176 11 9 No PD D 0.8 27 <br /> TOTAL 1,2-DICHLOROETHYLENE M176 11 6 No PD D 0.7 1.4 <br /> BENZENE W-177 8 0 Yes NO NO 0.15 1.3 <br /> ETRACHLOROETHYLENE(PCE) M177 8 0 Yes ND NO 0.53 15 <br /> RICHLOROETHYLENE(TCE) M177 8 0 Ves ND NO 0.53 1.5 <br /> VINYL CHLORIDE M177 8 4 No D D 0.68 1.3 <br /> OTAL 1,2-DICHLOROETHYLENE W-177 7 3 No D D 0.25 1.6 <br /> BENZENE W-178 9 0 Yes ND ND 0.1 1.2 <br /> 15 <br />