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17 June 2005 <br /> AGE-NC Project No 97-0351 <br /> ' Page 3 of 4 <br /> ' 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> TPH-g was detected In the ground water sample collected from well MW-1 at a concentration of <br /> ' 700 micrograms per liter (µg/1) No other petroleum hydrocarbons were detected in ground water <br /> samples from the other monitoring wells <br /> ' Analytical results of ground water samples are summarized in Table 2 The laboratory report(CTEL <br /> Project No CT214-0504170), quality assurance/quality control (QA/QC) report, and chain of <br /> custody form are Included in Appendix C Documents confirming the upload of laboratory electronic <br /> deliverable format (EDF) files and depth to water measurements to GeoTracker are Included in <br /> Appendix D <br /> 4.0. SUMMARY AND <br /> CONCLUSIONS <br /> Based on the environmental data collected at the site during the second quarter 2005, AGE <br /> concludes <br /> '. On 18 April 2005, depth to ground water ranged from 7 81 feet to 8 92 feet below the tops <br /> of the well casings Ground water elevation at the site ranged from 1 20 feet to 187 feet <br /> above MSL and averaged approximately 156 feet above MSL, Indicating a decrease-In <br /> elevation of approximately 0 12 feet since the last ground water monitoring event in January <br /> 2005 <br /> • Ground water In the western portion of the site was Inferred to be flowing In a southeast <br /> trending trough under an average calculated gradient of approximately 0 006 ft/ft Ground <br /> ' water on the eastern portion of the site was Inferred to be flowing toward the southeast under <br /> a gradient of approximately 0 005 ft/ft <br /> • TPH-g was detected In the ground water sample collected from well MW-1 at a <br /> concentration of 700 µg/1 No other petroleum hydrocarbons were detected In ground water <br /> samples from the other monitoring wells <br /> • At the present time, the vertical extent of dissolved hydrocarbons has not been defined <br /> Advanced GcoEnvironmental,Inc <br />