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' 08 March 2006 <br /> . AGE-NC-95-0185 <br /> Page 3 of 4 <br /> elevation at the site increased approximately 1.86 feet since the previous monitoring event in August <br /> 2005. Theg round water flow direction was inferred to be toward the southeast at a gradient of <br /> approximately 0.009 foot/foot (ft/ft) near the former UST locations (Figure 3). <br /> 3.2. LABORATORY RESULTS OF GROUND WATER SAMPLES <br /> ' TPH-g and TPH-d were detected in the samples collected from wells MW-1 and MW-4 during the <br /> November 2005 sampling at concentrations as high as 220,000 micrograms per liter (µg11) and <br /> 1,300,000 µg/l, respectively,'both from well MW-4. <br /> i <br /> No other constituents of concern were not detected in the samples taken from wells MW-1 through <br /> MW-4. <br /> Current and previous analytical results are summarized in Tables 2 and 3. The laboratory reports <br /> ' (CTEL Project No. CT214-0511096),quality control/quality assurance(QA/QC)reports and chain <br /> of custody forms are included in Appendix C. GeoTracker confirmation pages of the submitted <br /> laboratory electronic deliverable format(EDF)files and depth to water measurements are provided <br /> ' • in Appendix D. <br /> ' 4.0. CONCLUSIONS <br /> Based on the data collected during the November 2005 monitoring period, AGE concludes: <br /> • not been resent in well MW-4 since October 2005. Free product <br /> Visual free product has p <br /> monitoring and remediation was initiated in August 2005. Well MW-5 continues to be <br /> ' inaccessible this quarter and has not been monitored since June 2004. <br /> • The depth to ground water was near 25 feet below casing grade. Ground water elevation <br /> ranged between 33.85 feet and 34.67 feet above MSL and was inferred to flow toward the <br /> southeast at a gradient of approximately 0.009 ft/ft. <br /> • Petroleum hydrocarbons have not been detected in wells MW-2 and MW-3 since the third <br /> quarter 2002. High concentrations of dissolved TPH-d were detected in the fourth quarter <br /> sampling event. <br /> ' Advanced GeoEnvironmental,Inc. <br />