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GrEOMATRIX <br /> TABLE 3 Page 3 of 3 <br /> GROUNDWATER ANALYTICAL DATA <br /> VolatilesEPA Method 8260B <br /> { ) Dissolved <br /> Monitoring ,YTPgg2 Results inµg/L3 Lead <br /> Well' Date /L B T E X MtBE /L <br /> MW3-5 05/18/04 <20 <0.5 <0.5 <0.5 <1.0 na na <br /> continued 05/21/04 <100 <0.5 <0.5 <0.5 <1.0 na na <br /> 09/23/04 <50 <0.5 <0.5 <0.5 <0.5 <0.5 na <br /> MW3-6 02/20/03' 6,800 1,700 80 69 280 <0.5 3.1 <br /> 05/29/03 1,000 1,030 85 59 110 na na <br /> 08/22/03 7,970 1,890 61.4 65:8 249 na na <br /> I0/16/03 688 875 25.3 16.6 82.7 na' na <br /> y 02/26/04 312 792 20.7 10.6 54.5 na na <br /> 04/01/04 2,900 890 43.0 32.0 91- na na <br /> 05/18/045 ns ns ns ns ns ns ns <br /> 05/21/04 327 431 17.6 11.4 45.0na na <br /> IL 09/23/04 3,800 1 1,800 1 43 33 160 <25 na <br /> 1. Monitoring well locations are shown on Figure 2. <br /> 2. TPHg=total.petroleum hydrocarbons quantified as gasoline analyzed using.U.S.Environmental Protection Agency <br /> (EPA)Method 8015M or'8260B. Results reported in micrograms per liter(jg/L). <br /> 3. B=benzene,T-toluene,E=ethylbenzene,X-total xylenes(sum of m,p-xylene and o-xylene), <br /> MtBE=methyl tertiary butyl ether. Results reported in'µg/L. na=not analyzed for constituent. <br /> r„ ND=not detected for constituent. ns=not sampled. U=data are qualified as not detected <br /> because concentration is less than five times the blank concentration. <br /> 4. Dissolved lead analyzed using EPA Method 6010B. Results reported in AglL. <br /> 5. Wells MW3-1 and MW3-6 were not sampled on May 18,2004. <br /> 6. Well MW3-3 was not sampled because a temporary earth ramp covered the well location. <br /> 7. Sample was also analyzed for 1,2-dichloroethene,diisopropyl ether,ethyl tertiary butyl ether,and tertiary amyl methyl <br /> ether using EPA"Method 8260. These constituents were not detected. <br /> 8. <=less than the detection limit for purpose of reporting. <br /> t <br /> 1 _ <br /> I AIPROJ E CT16000s\643 7.000164 3 7-24 <br />