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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 /> OTAL 1,2-DICHLOROETHYLENE W-070 17 16 No 0 D 24 17D <br /> BENZENE W-071 20 0 Yes NO NO 0.2 0,83 <br /> ETRACHLOROETHYLENE(PCE) W-071 20 1 No 0 0 0.85 0.97 <br /> RICHLOROETHYLENE(TCE) W-071 20 19 No 0 D 1.2 1.6 <br /> VINYL CHLORIDE W-071 20 0 Yes NO ND 0.19 0.82 <br /> OTAL 1,2•0ICHLOROETHYLENE W-071 20 16 No 0 D 1.5 2 <br /> BENZENE W-072 19 0 Yes NO ND 0.25 0.87 <br /> ETRACHLOROETHYLENE(PCE) W 072 19 0 Yes NO NO i 0.98 <br /> RICHLOROETHYLENE(TCE) V,4072 19 0 Yes NO NO 1 0.98 <br /> VINYL CHLORIDE W-072 19 1 No D D Us 0.89 <br /> OTAL 1,2-DICHLOROETHYLENE V,1072 19 0 Yes NO ND 1 1.1 <br /> BENZENE W-073 19 0 Yes NO NO Us 0.87 <br /> ETRACHLOROETHYLENE(PCE) VV-073 19 0 Yes NO NO 1 0.98 <br /> RICHLOROETHYLENE(TCE) M073 19 0 Yes NO NO 1 0.98 <br /> VINYL CHLORIDE W-073 19 1 No D D Us 1.2 <br /> OTAL 1,2-DICHLOROETHYLENE WL073 19 1 No D D 1 1.1 <br /> BENZENE W-074 19 0 Yes NO NO 0.2 5.7 <br /> ETRACHLOROETHYLENE(PCE) V11074 19 0 Yes ND ND 0.3 9.7 <br /> RICHLOROETHYLENE(TCE) Vµ074 19 0 Yes NO NO 0.3 9.7 <br /> VINYL CHLORIDE VU74 20 20 No D D 73 160 <br /> OTAL 1,2-DICHLOROETHYLENE VM74 20 20 No D D 150 280 <br /> BENZENE W-075 14 0 Yes NO NO 0.05 2.8 <br /> ETRACHLOROETHYLENE(PCE) W-075 14 0 Yes NO NO 0.05 3 <br /> RICHLOROETHYLENE(TCE) W-075 14 2 No D D 0.05 3 <br /> VINYL CHLORIDE VL075 15 6 No D D 0.1 27 <br /> OTAL 1,2-DICHLOROETHYLENE M075 15 12 No D D 1 110 <br /> BENZENE M076 15 0 Yes NO NO 0.05 1.8 <br /> ETRACHLOROETHYLENE(PCE) M076 15 D Yes ND NO 0.05 2 <br /> RICHLOROETHYLENE(TCE) M076 15 4 No D 0 0.05 2.2 <br /> VINYL CHLORIDE W-076 15 15 No 0 O 81 120 <br /> OTAL 1,2-DICHLOROETHYLENE W-076 15 15 No D D 61 170 <br /> BENZENE W-077 19 1 No ❑ 0 3.6 50 <br /> ETRACHLOROETHYLENE(PCE) W-077 19 0 Yee NO ND 3.9 58 <br /> RICHLOROETHYLENE(TCE) W-077 20 5 No D D 6.8 75 <br /> INYL CHLORIDE W-077 20 20 No D D 600 2000 <br /> OTAL 1,2-DICHLOROETHYLENE W-077 20 20 No D D 4700 5200 <br /> BENZENE W-078 10 0 Yes NO NO 0.19 3.9 <br /> ETRACHLOROETHYLENE(PCE) W-078 10 3 No 0 D 0.41 35 <br /> RICHLOROETHYLENE(TCE) W-078 10 3 No D D 0.56 47 <br /> VINYL CHLORIDE VW078 10 8 No ❑ 0 20 110 <br /> OTAL 1,2-DICHLOROETHYLENE W-078 10 10 No D D 37 630 <br /> BENZENE w-079 14 0 Yes NO ND 0.25 20 <br /> ETRACHLOROETHYLENE(PCE) W-079 14 12 No D 0 11 77 <br /> RICHLOROETHYLENE(rCE) W-079 14 12 No D D 130 530 <br /> VINYL CHLORIDE VV079 14 14 No D D 170 220 <br /> OTAL 1,2-DICHLOROETHYLENE V,4079 14 14 No D D 1700 2900 <br /> BENZENE VJ-060 18 0 Yes NO NO 0.05 36 <br /> ETRACHLOROETHYLENE(PCE) V�F080 18 3 No 0 D 0.05 120 <br /> RICHLOROETHYLENE(TCE) W-080 18 11 No D D 0.75 130 <br /> VINYL CHLORIDE W-080 18 18 No 0 D 1.9 150 <br /> OTAL 1,2-DICHLOROETHYLENE W-080 18 18 No O D 10 1300 <br /> BENZENE W-081 22 1 No 0 D 0.05 7.1 <br /> ETRACHLOROETHYLENE(PCE) W-081 22 11 No ❑ D 3.1 13 <br /> RICHLOROETHYLENE(TCE) W-081 22 14 No 0 0 6.5 17 <br /> VINYL CHLORIDE VL081 22 20 No D D 2.8 110 <br /> OTAL 1,2-DICHLOROETHYLENE W-081 22 22 No D D 64 1500 <br /> BENZENE W-082 16 0 Yes NO ND 0.25 0.98 <br /> ETRACHLOROETHYLENE(PCE) W-082 16 0 Yes ND NO 1 1.3 <br /> RICHLOROETHYLENE(TCE) W-082 16 0 Yes ND NO 1 1.3 <br /> VINYL CHLORIDE V4082 16 6 No ❑ D 0.7 1.4 <br /> OTAL 1,2-DICHLOROETHYLENE W-082 16 2 No D D 1 1.5 <br /> BENZENE W-083 13 1 No D D 0.25 0.76 <br /> ETRACHLOROETHYLENE(PCE) W-083 13 0 Yes <br /> ND ND 1 0.87 <br /> 9 <br />