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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 /> VINYL CHLORIDE W-045 11 0 Yes NO NO 5 3 <br /> TOTAL 1,2-DICHLOROETHYLENE VV4045 11 0 Yes ND NO 5 3.1 <br /> BENZENE VV.046 13 0 Yes NO NO 1 2.5 <br /> ETRACHLOROETHYLENE(PCE) WA46 13 0 Yes NO NO 1 26 <br /> RICHLOROETHYLENE(TCE) W-046 13 0 Yes ND ND 1 2.6 <br /> VINYL CHLORIDE W-046 13 0 Yes NO NO 1 2.5 <br /> TOTAL 1,2-DICHLOROETHYLENE M045 13 0 Yes NO ND 1 2.6 <br /> BENZENE W-047 21 0 Yes NO NO 0.5 1.9 <br /> ETRACHLOROETHYLENE(PCE) M047 21 0 Yes NO NO 1 2 <br /> RICHLOROETHYLENE(TCE) W-047 21 0 Yes NO NO 1 2 <br /> VINYL CHLORIDE M047 21 21 No NT O 22 33 <br /> TOTAL 1,2-DICHLOROETHYLENE M047 21 14 No D D 9 12 <br /> BENZENE W-048 21 1 No D D 25 7.7 <br /> ETRACHLOROETHYLENE(PCE) W-048 21 0 Yes NO ND 5 9 <br /> RICHLOROETHYLENE(TCE) W-048 21 10 No D D 13 24 <br /> VINYL CHLORIDE WA48 21 16 No D D 18 20 <br /> TOTAL 1,2-DICHLOROETHYLENE ALM 20 20 No S D 620 690 <br /> BENZENE W-049 11 0 Yes NO NO 1 2.6 <br /> ETRACHLOROETHYLENE(PCE) W-D49 11 0 Yes ND ND 1 2.8 <br /> RICHLOROETHYLENE(rCE) W-D49 11 0 Yes ND NO 1 2.8 <br /> VINYL CHLORIDE W049 11 D Yes NO NO 1 2.6 <br /> OTAL 1,2-DICHLOROETHYLENE W-D49 11 1 No D D 1 2.7 <br /> BENZENE W-050 5 D Yes ND NO 1 2.5 <br /> ETRACHLOROETHYLENE(PCE) IWD50 5 0 Yes NO NO 1 2.6 <br /> RICHLOROETHYLENE(TCE) W 05o 5 0 Yes NO NO 1 2.6 <br /> INYL CHLORIDE W-050 5 0 Yes NO ND 1 2.5 <br /> OTAL 1,2-DICHLOROETHYLENE W050 5 0 Yes NO NO 1 2.5 <br /> ENZENE W-051 23 2 No D D 0.1 1.1 <br /> ETRACHLOROETHYLENE(PCE) M051 23 0 Yes NO NO 0.15 1.3 <br /> RICHLOROETHYLENE(TCE) M051 23 1 No 0 D 0.5 1.4 <br /> VINYL CHLORIDE M051 23 0 Yes NO NO 0.1 1.3 <br /> TOTAL 1,2-DICHLOROETHYLENE W-051 23 2 No D D 0.5 1.3 <br /> BENZENE VJ1052 19 0 Yes NO ND 0.25 093 <br /> ETRACHLOROETHYLENE(PCE) W-052 19 1 No D 0 0,35 1.4 <br /> RICHLOROETHYLENE(TCE) W-052 19 1 No D D 0.4 1.2 <br /> VINYL CHLORIDE W-052 19 17 No 1 1 78 84 <br /> TOTAL 1,2-DICHLOROETHYLENE W-052 19 16 No 1 1 56 160 <br /> BENZENE W-053 24 1 No D D 0.05 3.6 <br /> ETRACHLOROETHYLENE(PCE) W053 24 21 No I NT 2.7 6.8 <br /> RICHLOROETHYLENE(TCE) W-053 24 24 No D 0 5.4 19 <br /> VINYL CHLORIDE W-053 24 9 No D D 0.05 37 <br /> TOTAL 1,2-DICHLOROETHYLENE W-053 24 24 No D D 39 340 <br /> BENZENE W054 14 0 Yes NO NO 0.15 0.94 <br /> ETRACHLOROETHYLENE(PCE) W-054 14 D Yes NO NO 0.53 1.1 <br /> RICHLOROETHYLENE(TCE) W-054 14 0 Yes NO NO 0.53 1.1 <br /> VINYL CHLORIDE W-054 14 0 Yes ND NO 0,15 0.94 <br /> TOTAL 1,2-DICHLOROETHYLENE W-054 14 3 No 0 D 0.53 1.3 <br /> BENZENE W-055 16 0 Yes NO NO 0.25 1 <br /> ETRACHLOROETHYLENE(PCE) W-055 16 0 Yes ND NO 1 1.1 <br /> RICHLOROETHYLENE(TCE) W-055 16 0 Yes NO NO 1 1.1 <br /> VINYL CHLORIDE Vv-055 16 D Yes NO NO 0.25 1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-055 16 0 Ves NO NO 1 1.3 <br /> BENZENE M056 3 D Yes N/A N/A 0.25 043 <br /> ETRACHLOROETHYLENE(PCE) VVL056 3 0 Yes N/A WA 1 0.68 <br /> RICHLOROETHYLENE(TCE) W-056 3 0 Yes N/A N/A 1 0.68 <br /> VINYL CHLORIDE W-056 3 0 Yes N/A N/A 0.25 0.43 <br /> TOTAL 1,2-DICHLOROETHYLENE W-056 3 0 Yes N/A N/A 1 0.75 <br /> BENZENE W.057 6 0 Yes NO NO 1 14 <br /> ETRACHLOROETHYLENE(PCE) W-057 6 0 Yes NO NO 1 1.5 <br /> RICHLOROETHYLENE(TCE) W-057 6 0 Yes NO NO 1 1.5 <br /> VINYL CHLORIDE w-057 6 0 ves ND NO 1 1.4 <br /> OTAL 1,24ACHLOROETHYLENE 1W057 6 o 1 Yes NO NO 1 1.5 <br /> BENZENE W-058 14 0 Yes NO NO 0.63 1.1 <br /> 7 <br />