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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 /> ENZENE W-272 11 0 Yee ND ND 0.13 0,13 <br /> ETRACHLOROETHYLENE(PCE) W-272 11 0 Yes ND NO 0.1 0.27 <br /> RICHLOROETHYLENE(TCE) W-272 11 0 Yes ND ND 0.05 0.26 <br /> VINYL CHLORIDE W-272 11 0 Yes ND ND 0.05 0.13 <br /> TOTAL 1,2-DICHLOROETHYLENE W-272 11 0 Yes ND ND 0.25 0.48 <br /> BENZENE V4.273 12 0 Yes ND ND 0.088 0.13 <br /> ETRACHLOROETHYLENE(PCE) W-273 12 0 Yes ND ND 0.1 0.25 <br /> RICHLOROETHYLENE(TCE) W-273 12 0 Yes ND ND 0.05 0.24 <br /> VINYL CHLORIDE W4273 12 0 Yes ND ND 0.05 0.12 <br /> TOTAL 1,2-DICHLOROETHYLENE W-273 12 1 No PD D 0.25 D.48 <br /> BENZENE W-274 16 o Yes ND ND 0.05 0.11 <br /> ETRACHLOROETHYLENE(PCE) W-274 16 o Yes ND NO 0.075 0.21 <br /> RICHLOROETHYLENE(TCE) W-274 16 0 Yes ND NO 0,05 0.2 <br /> VINYL CHLORIDE W-274 16 0 Yes ND ND 0.05 0.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-274 16 12 No I 1 3.8 4.1 <br /> BENZENE W-275 16 0 Yes ND ND 0,05 0.27 <br /> ETRACHLOROETHYLENE(PCE) W-275 16 0 Yes ND ND 0,05 0.61 <br /> RICHLOROETHYLENE(TCE) W-275 16 1 1 No D D 0.05 0.62 <br /> VINYL CHLORIDE W-275 16 7 No D O 0.43 1.6 <br /> TOTAL 1,2-DICHLOROETHYLENE W-275 16 16 No D D 78 86 <br /> BENZENE W-276 14 0 Yes ND ND 0.05 0.11 <br /> ETRACHLOROETHYLENE(PCE) W-276 14 0 Yes ND ND 0.1 0.23 <br /> RICHLOROETHYLENE(TCE) W-276 14 0 Yes ND ND 0.05 0.22 <br /> VINYL CHLORIDE W-276 14 o Yes NO ND 0,05 0,11 <br /> TOTAL 1,2-DICHLOROETHYLENE W-276 14 3 No D D 0,38 0.5 <br /> BENZENE W-277 12 0 Yes NO ND 0.05 1 0.12 <br /> ETRACHLOROETHYLENE(PCE) W-277 12 0 Yes ND ND 0.075 0.25 <br /> RICHLOROETHYLENE(TCE) W 277 12 0 Yes ND NO 0,075 0.25 <br /> VINYL CHLORIDE W-277 12 0 Yes ND NO 0.075 0.13 <br /> TOTAL 1,2-DICHLOROETHYLENE W-277 12 0 Yes ND NO 0.25 0.46 <br /> BENZENE W-278 11 0 Yes ND ND 0.05 0.13 <br /> ETRACHLOROETHYLENE(PCE) W-278 11 0 Yes ND ND 0.1 0.27 <br /> RICHLOROETHYLENE(TCE) W-278 11 0 Yes ND ND 0.1 0.27 <br /> VINYL CHLORIDE W-276 11 0 Yes ND ND 0.1 0.13 <br /> TOTAL 1,2-DICHLOROETHYLENE W-27B 11 D Yee ND ND 0.25 0.48 <br /> BENZENE W-279 8 0 Yes ND ND 0.19 0.16 <br /> ETRACHLOROETHYLENE(PCE) W-279 a o Yes NO NO 0,31 0.35 <br /> RICHLOROETHYLENE(TCE) W-279 8 0 Yes ND ND 0.31 0.35 <br /> VINYL CHLORIDE W-279 8 0 Yes ND ND 0.19 0.16 <br /> TOTAL 1,2-DICHLOROETHYLENE W-279 B 0 Yes ND ND 0.38 0.56 <br /> BENZENE W-280 4 0 Yes ND ND 0.25 1 0.25 <br /> ETRACHLOROETHYLENE(PCE) Vµ280 4 0 Yes NO No 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-280 4 0 Yes NO ND 0.5 0.63 <br /> VINYL CHLORIDE W-280 4 0 Yes ND NO 0.25 0,25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-280 4 0 Yes ND NO 1 0.88 <br /> BENZENE W281 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-281 4 0 Yes ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-281 4 0 Yes ND ND 0.5 0.63 <br /> VINYL CHLORIDE W-281 4 0 Yes ND NO 0.25 0.25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-281 4 0 Yes ND NO 1 0.88 <br /> BENZENE W-282 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-282 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-282 4 0 Yes ND ND 0.5 0.63 <br /> VINYL CHLORIDE W-282 4 0 Yes ND ND 0.25 0.25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-282 4 0 Yes ND ND 1 0.88 <br /> BENZENE W-284 4 D Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-284 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W484 4 D Yes ND ND 0.5 0.63 <br /> VINYL CHLORIDE W-284 4 0 Yee ND ND 0.25 D.25 <br /> TOTAL 1,2-OICHLOROETHYLENE W284 4 o Yes NO ND 1 0.88 <br /> BENZENE W.285 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-285 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-285 4 0 Yee NO NO 0.5 0.63 <br /> VINYL CHLORIDE W-285 4 0 Yes ND ND 0.25 0,25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-285 4 0 Yes ND NO 1 0.88 <br /> BENZENE W-290 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-290 4 0 Yes NO ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-290 4 0 Yes ND ND 0.5 0.53 <br /> VINYL CHLORIDE W-290 4 0 Yes NO ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W-290 4 0 Yes ND ND 1 0.88 <br /> BENZENE W291 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-291 4 0 Ves NO ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-291 4 o Yee ND ND 0.5 0.63 <br /> INYL CHLORIDE W-M 4 0 Yes ND ND 0.25 0.25 <br /> 22 <br />