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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 /> BENZENE 517-MWI 6 0 Yes ND NO 0,088 0.1 <br /> ETRACHLOROETHYLENE(PCE) 517-MW1 5 0 Yes ND NO 0.1 0.09 <br /> RICHLOROETHYLENE(TCE) 517-MW1 5 0 Yes ND NO 0.05 0.08 <br /> VINYL CHLORIDE 517-MW1 5 0 Yes NO NO 0.05 0.08 <br /> TOTAL 1,2-DICHLOROETHYLENE 517-MW1 5 0 Yes NO NO 0.25 0.25 <br /> BENZENE 517-MW2 6 0 Yes NO NO 0.088 0.1 <br /> ETRACHLOROETHYLENE(PCE) 517-MW2 5 0 Yes ND NO 0.1 0.09 <br /> RICHLOROETHYLENE(TCE) 517-MW2 5 0 Yes NO NO 0.05 0.08 <br /> VINYL CHLORIDE 517-MW2 5 0 Yes ND ND 0.05 0.08 <br /> TOTAL 1,2-DICHLOROETHYLENE 517-MW2 5 0 Yes ND NO 0.25 0.25 <br /> BENZENE 517-MW3 6 0 Yes ND NO 0.088 0.1 <br /> ETRACHLOROETHYLENE(PCE) 517-MW3 5 0 Yes NO ND 0.1 0.09 <br /> RICHLOROETHYLENE(TCE) 517-MW3 5 0 Yes ND NO 0.05 0.08 <br /> VINYL CHLORIDE 517-MW3 5 0 Yes NO NO 0.05 0.08 <br /> TOTAL 1,2-DICHLOROETHYLENE 517-MW3 5 0 Yes ND NO 0.25 0,25 <br /> BENZENE 517-MW4 4 0 Yes ND NO 0.05 0.061 <br /> ETRACHLOROETHYLENE(PCE) 517-MW4 4 0 Yes ND NO 0.075 0.081 <br /> RICHLOROETHYLENE(TCE) 517-MW4 4 0 Yes NO NO 0,05 0.069 <br /> VINYL CHLORIDE 517-MW4 4 0 Yes NO NO 0,05 0.069 <br /> TOTAL 1,2-DICHLOROETHYLENE 517-MW4 4 0 Yes NOKNO <br /> 0.25 0.25 <br /> BENZENE 517-MW5 4 0 Yes No 0,05 0.061 <br /> ETRACHLOROETHYLENE(PCE) 517-MW5 4 0 Yes ND0.075 0.081 <br /> RICHLOROETHYLENE(TCE) 517-MW5 4 0 Yes NO 0.05 0.069 <br /> VINYL CHLORIDE 517-MW5 4 0 Yes ND 0.05 0.069 <br /> TOTAL 1,2-DICHLOROETHYLENE 517-MW5 4 0 Yes ND 0.25 0.25 <br /> BENZENE 517-MVvs 4 0 Yes ND ND 0.05 0.061 <br /> ETRACHLOROETHYLENE(PCE) 517-MW5 4 0 Yes NDVND <br /> 0.075 0.081 <br /> RICHLOROETHYLENE(TCE) 517-MWfi 4 0 Yes ND 0.05 0.069 <br /> VINYL CHLORIDE 517-MW6 4 0 Yes No 0.05 0.069 <br /> OTAL 1,2-DICHLOROETHYLENE 517-MW5 4 0 Yes ND 0.25 0.25 <br /> BENZENE 816-MW1 17 0 Yes NO 0.15 0.71 <br /> ETRACHLOROETHYLENE(PCE) 816-MW1 17 0 Yes NO 0.13 0.83 <br /> RICHLOROETHYLENE(TCE) 816-MW1 17 1 No D D 0.13 0.79 <br /> VINYL CHLORIDE 816-MWi 17 2 No D D 0,13 0.8 <br /> TOTAL 1,2-DICHLOROETHYLENE 816-MW1 17 5 No D D 0.25 1.2 <br /> BENZENE 816-MW2 23 8 No D D 0.1 0,74 <br /> ETRACHLOROETHYLENE(PCE) 816-MW2 23 0 yes NO NO 0.1 0.64 <br /> RICHLOROETHYLENE(TCE) 81&MW2 23 17 No D D 1.1 3.6 <br /> VINYL CHLORIDE 816-MW2 23 23 No PI NT 19 22 <br /> TOTAL 1,2-DICHLOROETHYLENE 816-MW2 23 23 No PI I 110 110 <br /> BENZENE 816-MW3 16 2 No D D 0.05 1.1 <br /> ETRACHLOROETHYLENE(PCE) 816-MW3 16 0 Yes NO NO 0.075 0.87 <br /> RICHLOROETHYLENE(TCE) 816-MW3 16 0 Yes NO ND 0.05 0.87 <br /> VINYL CHLORIDE 81&MW3 16 8 No D D 0.31 110 <br /> TOTAL 1,2-DICHLOROETHYLENE 816-MW3 16 7 No D D 0.25 97 <br /> BENZENE 917-01 12 0 Yes NO NO 0,14 0.21 <br /> ETRACHLOROETHYLENE(PCE) 917-01 8 0 Yes NO NO 0.05 0.18 <br /> RICHLOROETHYLENE(TCE) 917-01 8 0 Yes NO NO 0.05 0.18 <br /> VINYL CHLORIDE 917-01 8 0 Yes NO NO 0.05 0.091 <br /> TOTAL 1,2-DICHLOROETHYLENE 917-01 8 0 Yes ND NO 0.25 0.34 <br /> BENZENE 917-02 15 11 No NT NT 1 4.3 <br /> ETRACHLOROETHYLENE(PCE) 917-02 11 0 Yes ND NO 0.05 0.14 <br /> RICHLOROETHYLENE(TCE) 917-02 11 0 Yes ND ND 0.05 0,14 <br /> VINYL CHLORIDE 917-02 11 0 Yes ND NO 0.05 0,079 <br /> TOTAL 1,2-DICHLOROETHYLENE 917-02 11 0 Yes ND NO 0.25 0.32 <br /> BENZENE 917-03 ie 17 No D D 2500 3300 <br /> ETRACHLOROETHYLENE(PCE) 917-03 14 9 Yes NO ND 0.75 1.7 <br /> RICHLOROETHYLENE(TCE) 917-03 14 0 Yes ND ND 1.1 1.8 <br /> VINYL CHLORIDE 917-03 14 0 Yes ND NO 0s5 1.7 <br /> OTAL 1,2-DICHLOROETHYLENE 917-03 14 0 Yes ND NO 3.8 5.9 <br /> BENZENE 917-04 19 19 No D D 770 3900 <br /> ETRACHLOROETHYLENE(PCE) 917-04 15 0 Yes ND ND 0.1 1.4 <br /> RICHLOROETHYLENE(TCE) 917-04 15 0 Yes I NO I NO 0.1 1.4 <br /> 1 <br />