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I05 May 2005 <br /> AGE-NC Project No 99-0645 <br /> IPage 5 of 6 <br /> Approximately 156 135 kg(344 25 pounds),or 55 09 gallons of hydrocarbons were extracted by the <br /> SVE system between 17 November 2004 and 17 March 2005 The volume and mass calculations are <br /> attached in Appendix D A total of 1,138 25 pounds, or 182 09 gallons of hydrocarbons have been <br /> extracted by the SVE system since 05 October 2004 <br /> 3 3 GROUND WATER GRADIENT AND FLOW DIRECTION <br /> Depth to ground water at the site on 25 January 2005 ranged from 91 29 feet to 9164 feet below the <br /> monitoring well casing tops The ground water elevation in each well was calculated from this data <br /> The ground water elevations ranged between 46 06 feet(MW-3)and 46 14 feet(MW-2)below mean <br /> sea level (MSL) Ground water decreased an average of 5 8 feet since the October 2004 monitoring <br /> event(Table 3) <br />' At the time of the January 2005 monitoring event, the ground water flow direction was inferred to <br /> be southeast at a gradient of approximately 0 001 ft/ft Figure 3 illustrates the contoured ground <br /> water elevations <br /> 3 4 ANALYTICAL RESULTS OF WATER SAMPLES <br /> CDCs were not detected in any of the collected ground water samples Analytical results from the <br /> ground water samples are summarized in Tables 4 and 5 The laboratory report(CTEL Protect No <br /> CT214-0501144), QA/QC reports and chain of custody form are included in Appendix E <br /> GeoTracker confirmation pages of submitted laboratory electronic deliverable format (EDF) files <br /> are included in Appendix F <br /> 4.0. SUMMARY AND CONCLUSIONS <br />' Based on the data collected from the site, AGE concludes <br /> • Approximately 156 135 kg(344 25 pounds),or 55 09 gallons ofhydrocarbons were extracted <br />' by the SVE system between 17 November 2004 and 17 March 2005 The volume and mass <br /> calculations are attached in Appendix D A total of 1,138 25 pounds, or 182 09 gallons of <br /> hydrocarbons were extracted by the SVE system since 05 October 2004 Soil-vapor <br /> Iextraction samples were adequate for continued remediation <br /> • The ground water flow direction was inferred to be southeast at a gradient of approximately <br />' 0 001 ft/ft during the January sampling and monitoring event <br /> • COCs were not detected in ground water monitoring well samples <br />' Advanced GeoEnraronmental,Inc <br /> 1 <br />