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• Herman&Helen's Marina-Auarter,2000,Groundwater Monitoring <br /> April 20, 2000 <br /> Page-6- <br /> TABLE 3 <br /> Historical Groundwater Monitoring Data <br /> (Continued) <br /> Gasoline TEPH Ground <br /> B T E X TPH-G Oxygenates/ Kerosene Diesel Motor Oil DTw Water <br /> Additives Elev. <br /> Detection DATE 0.3 0.3 03 0.6 0.05 1.0-10 0.05 0.05 '0.5 <br /> Finite: 4,9,1 µ911 µ94 99/1 1n91l µd1 roll ,nyl msA <br /> Well/Elevation <br /> Mw_"1 9/18/97 ND ND ND ND ND 7.9(MTBE)♦ ND ND ND 6.57 73.85 <br /> 8042 12/31/97 ND ND ND ND ND 490(MTBE) NT NT NT 4.44 75.98 <br /> 3.5(TAME) <br /> 3127/98 ND ND ND ND ND 1.900(MTBE) NT NT NT 5.86 7456 <br /> 6/26198 ND' ND' ND' ND' ND' 1,800(MTBE) NT NT NT 6.31 74.11 <br /> 22(TAME)* <br /> groins ND' ND' ND' ND' ND 5,900(MTBE) NT NT NT 6.60 73.82 <br /> 22(TAME)e' <br /> 12/30/98 ND ND ND ND ND 3,500(MTBE) NT NT NT 4.81 75.60 <br /> 130(test.butanol) <br /> 8.32(TAME)* <br /> 3/26/99 ND* ND' ND* ND' ND* 7,200(MTBE)♦ NT NT NT 5.65 74.77 <br /> 6130/99 ND' ND' ND* ND' - ND' 8.200(MTBE) NT NT NT 6.48 73.94 <br /> 29(TAME) <br /> 923199 3.8 ND ND 1.4 ND 9,400(MTBE) NT NT NT 7.05 73.37 <br /> 290(tett,bntanol) <br /> 33(TAME)♦' <br /> 1222/99 18 ND' ND' 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 /> MWq 9/18/97 1.6 O4 2.0 22 0.08 14(MTBE)- ND ND ND 8.T2 74.98 <br /> 83.75 <br /> 1291/97 3.5 16 44 120 0.53 8.2(MTBE)♦ NT NT NT 5.81 77.94 <br /> 307/98 52 1.5 45 IN 0.52 ND NT NT NT 6.77 7698 <br /> (.26/98 38 ND' 30 42 0.5 2.3(MTBE)♦ NT NT NT 6.52 77.23 <br /> 913oi98 35 ND' Is 13 0.2 3.7(MTBE)* NT NT NT 6.86 76.89 <br /> 1290/98 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 /> 9/23/99 10 ND ND 49 0.20 ND NT NT NT 7.01 76.74 <br /> IV=99 3.0 ND ND 26 0.1 ND NT NT NT 7.31 76.44 <br /> 3/17100 3.2 ND 0.46 58 0.30 ND NT NT NT 7.60 76.15 <br /> All Measurements Are In Feet-All Elevations Based On An Assumed Elevation Of 100.00 Feet For MW-I <br /> Unit Conversions: Analytical <br /> µg/1=parts per billion BTEX=benzene,toluene,ethyl benzene,xylene <br /> mg/1=parts per million TPH-G=total petroleum hydrocarbons,quantified as gasoline <br /> NO=none detected at or above laboratory detection limits <br /> NT=not tested for this analyte <br /> MTBE=methyl tert-butyl ether <br /> TAME=tertiary amyl methyl ether <br /> w=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 /> h <br /> t� CONDOR <br />