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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 /> TOTAL 1,2-DICHLOROETHYLENE W1122 1 0 Yes N/A N/A 1 1 <br /> BENZENE W-123 12 0 Yes ND ND 0.05 0.9 <br /> ETRACHLOROETHYLENE(PCE) W-123 12 0 Yes ND NO 0.05 0.96 <br /> RICHLOROETHYLENE(TCE) W-123 12 0 Yes ND ND 0.05 0.96 <br /> VINYL CHLORIDE W-123 12 0 Yes ND NO 0.05 0.9 <br /> TOTAL 1,2-DICHLOROETHYLENE M123 12 9 No D 0 1A 1.9 <br /> BENZENE W-124 15 0 Yes NO ND 0.05 0.74 <br /> ETRACHLOROETHYLENE(PCE) W-124 15 0 Yes ND ND 0.05 0.79 <br /> RICHLOROETHYLENE(TCE) W-124 15 0 Yes ND ND 0.05 0.79 <br /> INYL CHLORIDE W-124 15 15 No S NT 5 5 <br /> OTAL 1,2-0ICHLOROETHYLENE W-124 15 15 No D D 48 69 <br /> ENZENE WL125 13 0 Yes ND NO 0,05 0.83 <br /> ETRACHLOROETHYLENE(PCE) W-125 13 0 Yes ND ND 0.05 0.89 <br /> RICHLOROETHYLENE(TCE) W-125 13 0 Yes ND ND 0.05 0.89 <br /> VINYL CHLORIDE W-125 13 1 No D D 0,05 0.86 <br /> TOTAL 1,2-DICHLOROETHYLENE A1125 13 10 No D D 0.9 4.4 <br /> BENZENE W-126 12 0 Yes ND ND 0.05 0.9 <br /> ETRACHLOROETHYLENE(PCE) W126 12 0 Yes ND ND 0.05 0.96 <br /> RICHLOROETHYLENE(TCE) W-126 12 0 Yes ND ND 0.05 0.96 <br /> VINYL CHLORIDE W-126 12 0 Yes ND NO 0.05 0.9 <br /> TOTAL 1,2•DICHLOROETHYLENE W-126 12 3 No D D 0.25 1.2 <br /> BENZENE W127 13 0 Yes ND ND 0.05 0.83 <br /> ETRACHLOROETHYLENE(PCE) W-127 13 0 Yes ND ND 0.05 0.89 <br /> RICHLOROETHYLENE(TCE) W127 13 0 Yes ND NO 0.05 0.89 <br /> INYL CHLORIDE W127 13 0 Yes ND ND 0.05 0.83 <br /> TOTAL 1,2-DICHLOROETHYLENE W-127 13 12 No NT NT 3.4 4.4 <br /> BENZENE W-128 17 0 Yes ND NO 0.05 0.65 <br /> ETRACHLOROETHYLENE(PCE) W-128 17 0 Yes ND ND a05 0.7 <br /> RICHLOROETHYLENE(TCE) W-128 17 0 Yes NO NO 0.05 0,69 <br /> INYL CHLORIDE W-128 17 0 Yes ND NO 0.05 0.65 <br /> TOTAL 1,2-DICHLOROETHYLENE M128 17 1 No D D Us 1.2 <br /> BENZENE W-129 13 0 Yes ND NO 0.05 0.83 <br /> ETRACHLOROETHYLENE(PCE) W-129 13 0 Yes ND ND 0,05 0.89 <br /> RICHLOROETHYLENE(TCE) W-129 13 0 vas No No 0.05 0.89 <br /> INYL CHLORIDE W-129 13 2 No D D 0.05 0.88 <br /> OTAL 1,2-DICHLOROETHYLENE W1129 13 7 No D D 06 Z1 <br /> ENZENE W-130 13 o Yes No ND 0.05 0.83 <br /> ETRACHLOROETHYLENE(PCE) W4130 13 o Yes ND No 0.05 0.89 <br /> RICHLOROETHYLENE(TCE) W-130 13 0 Yee ND ND 1 0.05 0.89 <br /> INYL CHLORIDE W-130 13 7 No NT D 0.6 1.1 <br /> OTAL 1,2-DICHLOROETHYLENE W-130 13 10 No D D 0.9 is <br /> ENZENE W-131 15 0 Yes ND ND 0.1 0.59 <br /> ETRACHLOROETHYLENE(PCE) W-131 15 0 Yes ND ND 0.1 0.67 <br /> RICHLOROETHYLENE(TCE) W-131 15 0 Yes ND ND 0.1 0.67 <br /> INYL CHLORIDE W-131 15 0 Yes ND ND 0.1 0.59 <br /> OTAL 1,2-DICHLOROETHYLENE W-131 15 0 Yes ND ND 0.25 0.91 <br /> BENZENE W-132 11 0 Yes ND ND 0.05 0.98 <br /> ETRACHLOROETHYLENE(PCE) W-132 11 0 Yes NO ND 0.1 1.1 <br /> RICHLOROETHYLENE(TCE) W-132 11 0 Yes NO NO 0.05 1 <br /> VINYL CHLORIDE M132 11 3 No PD D 0.1 1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-132 11 3 No PD 0 0.25 1.2 <br /> BENZENE WA33 4 0 Yes ND ND 2.6 2.6 <br /> ETRACHLOROETHYLENE(PCE) W-133 4 0 Yes ND ND 3 3 <br /> RICHLOROETHYLENE(TCE) W-133 4 0 Yes ND ND 3 3 <br /> VINYL CHLORIDE M133 4 0 Yes ND ND 2.6 2.6 <br /> TOTAL 1,2-DICHLOROETHYLENE W-133 4 0 Yes ND ND 3 3 <br /> BENZENE W-135 4 0 Yes ND NO 2.6 2.6 <br /> ETRACHLOROETHYLENE(PCE) W-135 4 0 Yes ND NO 3 3 <br /> RICHLOROETHYLENE(TCE) W-135 4 0 Yes NO NO 3 3 <br /> VINYL CHLORIDE W-135 4 0 Yes ND ND 2.6 2.6 <br /> TOTAL 1,2-OICHLOROETHYLENE W-135 4 0 Yes ND NO 3 3 <br /> BENZENE W-137 4 0 Yes NO NO 2.6 2.6 <br /> ETRACHLOROETHYLENE(PCE) W-137 4 0 Yes ND ND 3 2.8 <br /> RICHLOROETHYLENE(TCE) W-137 4 0 Yes ND NO 3 2.8 <br /> VINYL CHLORIDE W-137 4 0 Yes ND NO 2.6 2.6 <br /> TOTAL 1,2-DICHLOROETHYLENE W-137 4 0 Yes ND ND 3 2.8 <br /> BENZENE W138 4 0 Yes ND NO 2.6 2.5 <br /> ETRACHLOROETHYLENE(PCE) W-138 4 0 Yes ND NO 3 3 <br /> RICHLOROETHYLENE(TCE) W-138 1 4 0 Yes ND ND 3 1 3 <br /> VINYL CHLORIDE W138 4 0 Yes ND ND 2.6 2.6 <br /> TOTAL 1,2-DICHLOROETHYLENE W-138 4 0 Yes ND NO 3 3 <br /> BENZENE W-139 4 0 Ves ND N0 2.6 2.6 <br /> Ves NO ND 3 ETRACHLOROETHYLENE(PCE) W-139 4 0 3 <br /> RICHLOROETHYLENE(TCE) W-139 4 0 Yes ND NO 3 3 <br /> 13 <br />