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' 22 November 2005 <br /> • AGE-NC Project No 01-0886 <br />' Page 3 of 4 <br />' 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> TPH-g was detected in wells MW-1 and MW-3 at concentrations of 160 micrograms per liter(µg/l) <br />' and 200 µg/1, respectively <br /> The fuel additives MTBE and 1,2-DCA were detected,MTBE was detected in wells MW-1,MW-2, <br /> and MW-3 at concentrations of 45 µg/1, 4 2 µg/l, and 140 µg11, respectively, and 1,2-DCA was <br /> detected in wells MW-1 and MW-3 at concentrations of 110 µg/l and 50 µg11, respectively The <br /> estimated distribution of dissolved MTBE is Illustrated on Figure 4 <br /> No other analytes were detected at or above laboratory detection limits in the ground water samples <br /> analyzed The analytical results of the ground water samples collected on 09 August 2005 are <br />' summarized in Table 2 The laboratory report (CTEL Project No CT214-0508064), quality <br /> assurance/quality control (QA/QC) report,and chain of custody form are included in Appendix C <br /> Documents confirming the upload of laboratory electronic deliverable format(EDF)files and depth <br /> ' to water measurements to GeoTracker are included in Appendix D <br /> ' 4.0. SUMMARY AND CONCLUSIONS <br /> ' Based on the data collected from the site, AGE concludes <br /> • At the time of the August 2005 sampling event, ground water elevation at the site ranged <br /> ' from 35 45 feet to 35 65 feet below MSL, and averaged approximately 35 57 feet below <br /> MSL, indicating a decrease in elevation of approximately 1 08 feet since the last ground <br /> water monitoring event in May 2005 <br /> t • Ground water was inferred to be flowing toward the east-northeast under a hydraulic gradient <br /> of approximately 0 008 ft/ft <br /> ' • TPH-g was detected in wells MW-1 and MW-3 at concentrations of 160 µg/l and 200 µg/1, <br /> respectively, MTBE was detected in wells MWA, MW-2, and MW-3 at concentrations of <br /> 45 µg/l, 4 2 µg/l,and 140 µg/l,respectively,and 1,2-DCA was detected in wells MW-1 and <br /> ' MW-3 at concentrations of 110 µg/l and 50 µg/1, respectively <br /> • Apparently, most of the detected concentrations of TPH-g consists of the MTBE and 1,2- <br /> DCA components <br /> • <br /> ' Advanced GeoEnvironmentai,Inc <br />