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08 October 2003 AGE-NC Project No. 98-0504 Page 6 of 7 4.1. STRATIGRAPHY AND DEPTH TO GROUND WATER Between 10 and 40 feet bsg, the soil consisted of gray and tan brown, moist clay. Silt with partially to full saturation was generally present at 35 feet bsg, at various locations. Ground water was encountered at approximately 30 to 35 feet bsg. The ground water depth after wells were installed is approximately 25 feet bsg. Soil boring logs are included in Appendix B. 4.2. GROUND WATER ELEVATION AND FLOW DIRECTION During well development, depth to ground water at the site ranged from 25.72 feet to 26.07 feet below the monitoring wells casing tops. The ground water elevations at the site ranged from 16.79, -feet (MW I) to 17.14 feet below mean sea level (ms]) (MW3), in the shallow ground water wells. Ground water data is included on Table 1. The ground water flow direction was calculated from the well elevation data. The ground water was inferred to flow north at a gradient of 0.00367 ft/ft.Figure 3 illustrates the contoured ground water elevations as measured on 07 April 2003, . 4.3. GROUND WATER ANALYTICAL RESULTS TPH-g was detected in the ground water sample collected from well MW-1 at a concentration of 92 microgram per liter(µg/1). MTBE detected was in water sample MW-I at a concentration of 54 µg/1. 1,2=DCA detected was in water sample MW-I at a concentration of 2.7 µg/1. No additional petroleum hydrocarbon compounds were detected in the samples analyzed.Analytical results from ground water samples are summarized in Table 2. The laboratory reports (CTEL ID CT214-0304048),quality assurance and quality control(QA/QC)reports and chain-of-custody forms are included in Appendix D. 5.0. SUMMARY AND CONCLUSIONS Based on the data collected from the site, AGE finds: O Ground water occurred at approximately 25 feet bsg during well development on 07 April 2003. • The general ground water flow direction appears to be north.• Advanced GeoEnvironmental,Inc.