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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 /> ETRACHLOROETHYLENE(PCE) W-255 5 0 Yes NO NO 0.5 0.52 <br /> RICHLOROETHYLENE(TCE) W-255 5 0 Y. ND NO a5 0.51 <br /> INYL CHLORIDE W-255 5 0 Yea ND ND 0.25 0.21 <br /> OTAL 1,2-0ICHLOR6ETHYLENE W255 5 0 Yea ND NO 1 0.75 <br /> BENZENE W-256 5 0 Yea ND ND 0.25 0.21 <br /> ETRACHLOROETHYLENE(PCE) W256 5 0 Yea ND ND 0.5 0151 <br /> RICHLOROETHYLENE CE W256 5 0 Yea ND ND 0.5 0.51 <br /> INYL CHLORIDE W256 5 0 Yea ND ND 0.25 0.21 <br /> OTAL 1,2-DICHLOROETHYLENE W256 5 0 Yea ND ND 1 0.75 <br /> BENZENE W257 5 0 Yee ND NO 0.25 0.21 <br /> ETRACHLOROETHYLENE CE W257 5 0 Yes ND ND 0.5 0.51 <br /> RICHLOROETHYLENE(TCE) W257 5 0 Yes ND ND 0.5 0.51 <br /> INYLCHLORIDE W257 5 0 Y. NO ND 0.25 0.21 <br /> OTAL 1,2-DICHLOROETHYLENE W257 5 0 Y. ND NO 1 0.75 <br /> BENZENE YW258 4 0 Yes ND NO 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W258 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE W258 4 0 Yes ND NO 0.5 0.63 <br /> INYL CHLORIDE W-258 4 0 Yee NO ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W-258 4 0 Yee NO ND 1 ase <br /> BENZENE W-258 4 1 No S PD 0.25 0.31 <br /> ETRACHLOROETHYLENE(PCE) W258 4 0 Yea ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W258 1 4 0 Yee NO NO 0.5 0.63 <br /> INYL CHLORIDE W258 4 4 No S NT 1.1 1.1 <br /> OTAL 1,2-DICHLOROETHYLENE W258 4 4 No S NT 1.5 1.5 <br /> BENZENE W261 4 0 Y. ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W261 4 0 Yea ND ND 0.5 0.63 <br /> RICHLOROETHYLENE C W-261 4 0 Yee ND ND 0.5 0.63 <br /> INYL CHLORIDE W251 4 0 Yea ND ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W261 4 0 Yea ND NO 1 0.88 <br /> BENZENE W262 4 1 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE CE W262 4 0 Yea ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W262 4 0 Y. ND NO 0.5 0.63 <br /> INYL CHLORIDE W262 4 0 Yea NO NO 0.25 0.25 <br /> OTAL 1,2.OICHLOROETHYLENE W-262 4 0 Yes ND ND 1 0.88 <br /> BENZENE W263 a 0 Yee ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-263 4 0 Yea ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W263 4 0 Yea ND NO 0.5 0.63 <br /> INYL CHLORIDE W253 4 4 No 8 NT 2.6 2.7 <br /> OTAL 1,2-DICHLOROETHYLENE W263 4 4 No s NT 2.5 2.5 <br /> ENZENE W254 4 0 Yes ND NO 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W264 4 0 Yes ND NO 0.6 0.63 <br /> RICHLOROETHYLENE(TCE) W254 4 0 Y. ND NO 0.5 0.63 <br /> INYL CHLORIDE W264 4 0 Yea ND NO 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W264 4 3 No s D i 1 <br /> BENZENE W265 4 1 No s PD 0.25 0.34 <br /> ETRACHLOROETHYLENE PCE W285 4 a Yes ND NO 0.5 0.83 <br /> RICHLOROETHYLENE(TCE) W255 a 0 Yea ND NO 1 0.5 0.83 <br /> INYL CHLORIDE W265 4 4 No NT NT 1.7 1.6 <br /> OTAL 1,2-DICHLOROETHYLENE W-265 4 4 No s NT Z5 Z5 <br /> BENZENE W266 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W266 4 0 Yes ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-256 4 0 Yes ND NO 0.5 0.63 <br /> INYL CHLORIDE W266 4 0 Yes NO NO 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W-266 4 0 Yea NO ND 1 0.88 <br /> BENZENE W267 4 0 Yee NO ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-267 4 0 Yea No ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W267 4 0 Yea ND ND 0.5 0.63 <br /> INYL CHLORIDE W-267 4 0 Yea ND ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W-267 4 0 Yea ND ND 1 0.88 <br /> BENZENE W268 4 D Yea No ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W268 4 0 Y. ND NO 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W-268 4 0 Yea ND NO 0.5 0.63 <br /> INYL CHLORIDE W-268 4 o Yes ND ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W268 4 o Yea ND ND 1 0.88 <br /> BENZENE W270 4 0 Yes ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-270 4 D Yes ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(TCE) W270 4 D Yes ND ND 0.5 0.63 <br /> INYL CHLORIDE W-270 4 0 Yea ND ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE WZ70 4 D Yes NO ND 1 0.88 <br /> BENZENE W-271 4 D Yee ND ND 0.25 0.25 <br /> ETRACHLOROETHYLENE(PCE) W-271 a 0 Yee ND ND 0.5 0.63 <br /> RICHLOROETHYLENE(rCE) W271 4 D ves ND ND 0.5 0.63 <br /> INYL CHLORIDE IM271 4 o Yes ND ND 0.25 0.25 <br /> OTAL 1,2-DICHLOROETHYLENE W271 4 0 Yes ND ND 1 0.88 <br /> 21 <br />