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January 3. 1991 BAL CHANCE ASSOCIATES <br /> File No. 2037-1 <br /> TABLE 2 <br /> GROUNDWATER SURFACE ELEVATIONS <br /> Well Date Depth to <br /> Measured Groundwater <br /> MW-1 12/14/90 11.5' <br /> 12/20/90 11.1' <br /> V. SUMMARY OF CHEbUCAL TESTING RESULTS <br /> Field operation of the Gastech resulted no significant readings of hydrocarbon vapor from <br /> soil samples. In accordance with established guidelines, one soil sample from each of the <br /> four test borings was randomly selected for total hydrocarbon and aromatic organics <br /> f analysis. Presented in Table 3 below are results of chemical tests performed on samples <br /> obtained from the project site. A copy of the test data report from the analytical laboratory <br /> is included as Appendix C. - <br /> TABLE 3 <br /> SUMMARY OF LABORATORY TESTING RESULTS <br /> is <br /> Boring Matrix Depth Gasoline Diesel Benzene Toluene Ethyl-Benz. Tot.-Xylenes <br /> TB-1 Soil 11' ND ND ND ND, ND ND <br /> TB-2 Soil 15.5' ND ND ND ND` ND ND <br /> TB-3 Soil 10' ND ND ND ND,'� ND ND <br /> TB-4 Soil 5' ND ND ND ND! ND ND <br /> MW-1 Water ND ND ND ND's ND ND <br /> Notes: 1. Test method for gasoline and diesel is modifiedZPA 8015 and for aromatics is EPT020/602. <br /> 2. N.D. - non-detected at the detection limit <br /> 3. For soil samples,the detection limits of both gasoline and diesel are 1 ppm and detection limits <br /> of aromatics are 5 ppb. j <br /> 4. For water sample,detection limits of both gasoline and diesel are 0.05 ppm and detection limits <br /> of aromatics are 0.5 ppb. <br />�s <br /> Page S of 7 <br /> N• <br />