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TABLE 1 GROUNDWATER ANALYTICAL RESULTS ROKEN EN ERIN (ICES <br /> GW- 1 2 3 4 5 6 7 8 9 10 11 12 ESLs <br /> EPH(mg/L) <br /> DRO(C13-C28) ND 1.2 ND 1.9 0.59 2.9 20 15 23 29 2.6 ND 210 <br /> MORO(C29-C40) 1.0 ND ND ND ND ND ND ND NO ND NO ND 210 <br /> METALS(µg2) <br /> Lead NO ND ND NO ND ND 59 NO 58 150 ND ND 2.5 <br /> Nickel ND ND ND 66 ND ND ND ND ND NO ND ND 8.2 <br /> Zinc NO ND ND 51 ND ND ND ND ND ND NO ND 81 <br /> VOCs(pg/L) <br /> n-Butylbenzene NO 3.4 ND 40 ND 55 400 440 67 120 57 ND NA <br /> sec-Butylbenzene ND ND ND ND NO NO 3.2 9.1 5.4 2.2 ND ND NA <br /> Chloroethane ND ND ND ND ND ND 1.6 1.6 1.4 8.5 NO ND 12 <br /> 4-Chlorotoluene ND ND ND ND NO 12 ND ND ND NO 13 ND NA <br /> 1,2-Dibromoethane ND ND ND ND ND ND ND NO 26 ND NO ND 150 <br /> 1,2 Dichloroethane ND ND ND NO ND 140 180 44 430 580 130 NO 200 <br /> Isopropylbenzene NO 3.2 ND 33 ND 38 220 190 28 120 39 ND NA <br /> p-isopropyltoluene ND ND ND 12 ND II 100 29 34 92 12 ND NA <br /> Naphthalene ND 4.8 NO 130 ND 200 710 740 370 460 180 ND 24 <br /> n-propylbenzene NO 4.9 ND 50 ND 120 470 560 170 240 110 ND NA <br /> Styrene ND NO ND ND NO 1.7 NO NO NO ND 1.8 ND 100 <br /> 1,3,5-Trimethylbenzene NO 1.7 ND 200 NO 100 1000 1000 380 540 240 ND NA <br /> 1,2,4-Trimethylbenzene ND 1.7 ND 760 ND 1000 16000 11000 1500 5000 930 NO NA <br /> Benzene ND 35 ND 1000 ND 6500 19000 15000 9100 10000 5700 NO 46 <br /> Toluene ND 3.4 ND 200 ND 980 23000 17000 11000 14000 970 ND 130 <br /> Ethylbenzene NO 11 ND 280 ND 1100 1900 2000 1400 1400 950 ND 43 <br /> m,p-Xylene ND 6.8 ND 2100 ND 2200 25000 13000 9600 10000 2000 ND 100 <br /> o-Xylene ND 1.8 ND 260 NO 860 9900 5500 2800 3000 820 ND 100 <br /> Di-isopropyl ether ND ND ND NO ND 3.8 NO ND ND ND 3.4 ND NA <br /> GRO(C6-C12) ND 3500 ND 29000 ND 37000 910000 200000 110000 150000 34000 ND 210 <br /> GW-1 Groundwater Sample Location ESLs Environmental Screening Levels—Interim Final November 2007(Rev. May 2008) <br /> EPH Extractable Petroleum Hydrocarbons Table F-lb Groundwater Screening Levels <br /> mg/L Milligrams per Liter(parts per million) (groundwater is not a current or potential drinking water source) <br /> DRO Diesel Range Organics <br /> MORO Motor Oil Range Organics NO Not detected above the laboratory method reporting limit <br /> µg/l, Micrograms per Liter(parts per billion) NA Not Available <br /> VOCs Volatile Organic Compounds <br /> GRO Gasoline Range Organics NOTE: BOLD indicates detected compound concentration exceeds ESL. <br /> PAGE 1 of 2 <br />