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• Herman&Helen's M10 Fourth Quarter,2000, Groundwater Monitoring <br /> January 12,2001 <br /> Page-7- <br /> TABLE Historical Groundwater Monitoring Data(Continued) <br /> Gasoline TEPH _ Ground <br /> B T E X TPH-G Oxygenates/ Kemsrne Diesel Motor Oil DTW Water <br /> Addifiws Elev. <br /> Dcteodoo DATE 0.3 0.3 0.3 0.6 0.05 1.0-10 0.05 0.05 .0.5 <br /> Inmts: µµ/I 4µ/I 318/1 41 m84 µyl mg/1 .an m8/I <br /> Well/Elevation <br /> q MW-3 9/18/97 ND ND ND ND ND 7.9(MTBE)* ND ND ND 6.57 73.85 <br /> tl 80'42 12/31/97 ND ND ND ND ND 490(MTBE) NT NT NT 4.44 75.98 <br /> SHE 3.5(TAME) <br /> 327/98 ND ND ND ND ND 1,900(MTBE) NT NT NT 5.86 74.56 <br /> A. <br /> 626/99 ND+ ND" ND" ND" ND" 1,800(MTBE) NT NT NT 6.31 74.11 <br /> 22(rAME)* <br /> 920/98 ND' ND' ND" ND" ND 5,900(MTBE) NT NT NT 6.60 73.82 <br /> 22(TAME)*" <br /> 12130/98 ND ND ND ND No 3,500(MTBE) NT NT NT 4.81 75.60 <br /> 130(m¢Butanol) <br /> 8.32(TAME) <br /> 326/99 ND+ ND+ ND" ND" ND' 7,200(MTBE)4 NT NT NT 5.65 74.77 <br /> 620/99 ND- ND' ND- ND- ND" 8,200(MTBE) NT NT NT 6.48 73.94 <br /> 29(TAME)* <br /> 923/99 3.8 ND ND 1.4 ND 9,400(MTBE) NT NT NT 7.05 73.37 <br /> 290(tat Butanol) <br /> 33(TAME)*+ <br /> 12/22/99 18 ND' NM- 5.1 0.09 10,000(MTBE) NT NT NT 6.69 73.73 <br /> 3/17/00 1.7 ND ND ND ND 3,600(MTBE)*" NT NT NT 4.61 75.81 <br /> 621/00 ND ND ND ND ND 8,800(MTBE)*' NT NT NT 6.80 73.62 <br /> 9n/Oo ND ND ND 1,7 ND 8,600(MTBE) NT NT NT 6.97 73.45 <br /> 320(ten.Bumnol) <br /> 48(TAME)*- <br /> 12113/00 ND ND ND ND ND 4,100(MTBE)*" NT NT NT 4.87 75.55 <br /> MW4 9/18/97 1.6 0.4 2.0 22 0.08 14(MTBE)- ND ND ND 8.77 74.98 <br /> 83.75 4 <br /> 1221/97 3.5 1.6 44 120 0.53 8.2(MTBE)* NT NT NT 5.81 77.94 <br /> 327/98 52 1,5 45 100 0.52 ND NT NT NT 6.77 76.98 <br /> 626/98 38 ND" 30 42 0.5 2.3(MTBE)* NT NT NT 6.52 77.23 <br /> 9/30/98 35 ND" is 13 0.2 3.7(MTBE)* NT NT NT 6.86 76.89- <br /> 1220/98 24 0.4 2.3 22 0.2 1.5(MTBE)* NT NT NT 6.64 77.11 <br /> 3/26/99 12 ND ND 12 0.07 ND NT NT NT 7.18 76.57 <br /> 6/30/99 32 ND 8.4 68 0.3 ND NT NT NT 7.38 76.37 <br /> 923/99 10 ND ND 49 010 ND NT NT NT 7,01 76.74 <br /> 1222/99 3.0 ND ND 26 0.1 ND NT NT NT 731 76.44 <br /> 3/17/00 31 ND 0.46 58 0.30 ND NT NT NT 7.60 76.15 <br /> ■■■ G/21/00 3.6 ND 0.6 61 0.3] ND NT NT NT 7.27 76.48 <br /> 9n/00 47, 0.9 28 680 a l ND <br /> I NT NLT NT 4.96 78.79 <br /> Z/13lUO 3.4 ND 4.2 120 0.67 1.4(MTBE)* NT NT NT 5.88 77.87 <br /> All Measurements Are In Feet-All Elevations Based On An Assumed Elevation Of 100.00 Feet For MW-1 <br /> Unit Conversions: Analvtical <br /> µg/1=parts per billion ND=none detected at or above laboratory detection limits;NT=not tested for this analyte <br /> mg/1=parts per million •=all other gasoline additives/oxygenates were not detected at or above the laboratory <br /> reported detection limits. <br /> `=Laboratory detection limits raised due to elevated concentrations. See Certificates of <br /> Analysis. <br /> �! n <br /> t v CONDOR <br />