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1 <br /> TABLE A <br /> (Continued) <br /> Constituent: B T E X MTBE TPH-G <br /> EPA Method: (602) (602) (602) (602) (602) (5030) <br /> Detection Limits: <br /> U 0.3 0.3 0.6 1.0 0-05 t <br /> L* AgIl ugh µg1► µgJl Pgn m� <br /> * NIW-7 9/22194 J ND 5.4 2.1 9:4 NA 1.2 1 <br /> 2114195 24 26 6.5 13 NA 0.57 a <br /> 5/4/95 15 7.6 ND 4.9 NA 0.25 <br /> 8110/95 LI 4.9 0.64 2.7 NA 0.43 <br /> 413197 0.6 2.2 ND ND 14.81 0.19 <br /> 7121197 0.4 1.6 ND ND [3.6] 0.13 <br /> 10/23/97 0.5 2.2 ND ND NDv 0.18 <br /> 1/22/98 0.8 3.0 ND ND NDv 0.21 <br /> 4/24198 0.59 2.4 ND ND NDv 0.17 <br /> 7123198 L1 1.2 ND ND NDv 0.1 <br /> i 10/21/98 0.4 1.9 ND ND NDv O.l <br /> B,T,E,X=benzene,toluene,ethyl benzene,and xylene. ND=none detected at or above laboratory detection limit <br />{ 4 TPH-G=total petroleum hydrocarbons,quantified as gasoline. ND X=none detected to a level of X. <br /> ' MTBE.=methyl tertiary butyl ether. =detection limit raised due to elevated petroleum hydrocarbon result. <br /> D1PE=Di-isopropyl ether. NA-not tested for this analyte. <br /> . fx]=EPA Method 602 analysis indicates a concentration of x;result is not confirmed by EPA Method 8260,however. Future analysis by EPA <br /> Method 8.260 may indicate that MTBE is not present. <br /> v-other oxygenates/additives were analyzed by EPA Method 8260 and were not detected at or above the laboratory reported detection limits. <br /> ♦=other oxygenatesladditives were analyzed by EPA Method 8260 and were not detected at or above the laboratory reported detection limits, <br /> with the exception of DIPE which was detected above the laboratory reported detection limit. <br /> **=EPA Method 602 indicated that MTBE was present at 240µg/L. However,EPA Method 8260 indicated in the previous monitoring event <br /> that MTBE was not present in the monitor well at or above the laboratory reported detection limit. <br /> 4 <br /> t <br /> J <br />