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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 S7De <br /> Mann Kendall Regression Concentration Concentration <br /> Constituent Well Samples Detects Non Trend Trend (ug/L) (ug/L) <br /> RICHLOROETHYLENE(TCE) W239 4 0 Yes ND ND 0.5 0.63 <br /> VINYL CHLORIDE W-239 4 0 Yes NO NO 0.25 D.25 <br /> TOTAL 1,2-DICHLOROETHYLENE V,1239 4 0 yes ND ND 1 0.88 <br /> BENZENE W-240 5 0 yes ND ND 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) W-240 5 0 Yes ND ND 0.5 0.51 <br /> RICHLOROETHYLENE(TCE) W-240 5 0 Yes ND ND 0.5 0.51 <br /> VINYL CHLORIDE VJL240 5 0 Yes NO ND 0.25 0.21 <br /> TOTAL 1,2-DICHLOROETHYLENE VL240 5 0 Yes ND ND 1 0.75 <br /> BENZENE W-241 5 0 yes ND ND 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) W-241 5 0 Yes ND ND 0.5 0.51 <br /> RICHLOROETHYLENE(TCE) W-241 5 0 Yes ND ND 0.5 0.51 <br /> VINYL CHLORIDE W241 5 0 Yes NO NO 0.25 0.21 <br /> TOTAL 1,2-DICHLOROETHYLENE VIL241 5 O Yes ND ND 1 0.75 <br /> BENZENE W-242 4 0 Yes ND NO 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-242 4 0 Yes ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W242 4 0 Yes ND ND 0.5 0.63 <br /> INYL CHLORIDE W-242 4 0 Yes ND ND 0.25 0.25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-242 4 0 Yes ND ND 1 0.88 <br /> BENZENE W-243 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-243 4 0 Yes NO NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-243 4 0 Yes NO No 0.5 0.63 <br /> VINYL CHLORIDE W-243 4 0 Yes ND NO 0.25 0.25 <br /> TOTAL 1,2-DICHLOROETHYLENE W-243 4 0 Yes ND ND 1 0.88 <br /> BENZENE W-244 4 0 Yes NO NO 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-244 4 1 No S S 0.75 0.75 <br /> RICHLOROETHYLENE(TCE) W-244 4 1 0 Yes ND NO 0.5 0.63 <br /> VINYL CHLORIDE W-244 4 0 Yes NO NO 0,25 0.25 <br /> TOTAL 1,2-01CHLOROETHYLENE VJ-244 4 0 Yes NO ND 1 0.88 <br /> BENZENE W-245 4 0 Yes NO NO 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-245 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-245 4 0 Yes ND NO 0.5 0.63 <br /> VINYL CHLORIDE W-245 4 0 Yes ND ND 0.25 0.26 <br /> TOTAL 1,2-DICHLOROETHYLENE W-245 4 a Yes ND ND 1 0.88 <br /> BENZENE W-247 17 0 Yes ND ND 0,05 0.11 <br /> ETRACHLOROETHYLENE(PCE) VF247 17 0 Yes ND ND 0.1 0.2 <br /> RICHLOROETHYLENE(rCE) W-247 17 16 No D D 1.3 3.4 <br /> VINYL CHLORIDE W247 17 1 No D D 0.05 0,13 <br /> TOTAL 1,2-DICHLOROETHYLENE W-247 17 17 No S 1 7 7.3 <br /> BENZENE W-248 16 a Yes NO ND 0.05 0.12 <br /> ETRACHLOROETHYLENE(PCE) W248 16 0 Yes ND NO 0,075 0.21 <br /> RICHLOROETHYLENE(TCE) V4248 16 a Yes ND ND 0,05 0.2 <br /> VINYL CHLORIDE W-248 16 a Yes NO NO 0.05 0.1 <br /> TOTAL 1,2-DICHLOROETHYLENE W-248 16 12 No PI NT 1 1.1 <br /> BENZENE W-249 6 0 Yes ND NO 0.25 0.18 <br /> ETRACHLOROETHYLENE(PCE) W-249 6 0 Yes ND ND 0.5 0.43 <br /> RICHLOROETHYLENE(TCE) VL249 6 a Yes NO ND 0.5 0.43 <br /> VINYL CHLORIDE W-249 6 0 Yes NO ND 0.25 0.18 <br /> TOTAL 1,2-OICHLOROETHYLENE W-249 6 0 Yes NO NO 0.75 0.67 <br /> BENZENE W-250 13 0 Yes NO ND 0.13 0.13 <br /> ETRACHLOROETHYLENE(PCE) W1250 13 0 Yes ND NO 0.1 0.24 <br /> RICHLOROETHYLENE(TCE) W-250 13 0 Yea ND ND 0.05 0.23 <br /> VINYL CHLORIDE W-250 13 0 Yes NO NO 0.05 0.12 <br /> TOTAL 1,2-DICHLOROETHYLENE W-250 13 1 No D O 0.25 0,41 <br /> BENZENE W251 13 0 Yes ND ND 0.13 0,13 <br /> ETRACHLOROETHYLENE(PCE) W-251 13 0 Yes ND ND 0.1 0.24 <br /> RICHLOROETHYLENE(rCE) W-251 13 0 Yes ND ND 0.05 0.23 <br /> INYL CHLORIDE VV-251 13 0 Yes ND ND 0.05 0.12 <br /> TOTAL 1,2-DICHLOROETHYLENE W251 13 0 Yes ND ND 0.25 0.44 <br /> BENZENE W252 5 0 Yea ND ND 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) W-252 5 a Yes ND ND 0.5 0.51 <br /> RICHLOROETHYLENE(TCE) W-252 5 0 Yes NO ND 0.5 0.51 <br /> VINYL CHLORIDE W252 5 0 Yes NO NO 0.25 0.21 <br /> TOTAL 1,2-DICHLOROETHYLENE W-252 5 a Yes ND NO 1 0.75 <br /> BENZENE W-253 5 0 Yes NO NO 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) VW253 5 a Yes ND NO 0.5 0.51 <br /> RICHLOROETHYLENE(TCE) W-253 5 o Yes ND NO 0.5 0.51 <br /> VINYL CHLORIDE W-253 5 o Yes ND ND 0.25 0.21 <br /> TOTAL 1,2-DICHLOROETHYLENE W-253 5 0 Yes ND NO 1 0.75 <br /> BENZENE IW254 5 D Yes ND NO 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) VV-254 5 D Yes ND NO 0.5 a51 <br /> RICHLOROETHYLENE(TCE) IVL254 5 0 ves ND ND 0.5 0.51 <br /> INYL CHLORIDE IVAL24 5 o Yes ND NO 0.25 0.21 <br /> TOTAL 1,2-DICHLOROETHYLENE W-254 5 0 Yes ND ND 1 0.75 <br /> ENZENE W-255 5 0 Yee ND ND 0.25 0.21 <br /> 20 <br />