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1 <br />' 20 March 2006 <br /> • AGE-NC Project No 95-0130 <br />' Page 8 of 13 <br />' effluent air flow samples <br /> Analytical results of SVE air samples are summarized in Table 5 GeoTracker confirmation pages <br />' of the submitted laboratory electronic deliverable format (EDF) files are Included in Appendix C <br /> A plot of laboratory analysis of SVE influent TPH-g air stream concentrations versus time is <br /> included with Appendix E The laboratory reports (CTEL Project Nos 0510-055, 0511-054 and <br /> 0512-060) and chain of custody forms are presented in Appendix F <br /> 3 3 3 MASS CALCULATION OF RECOVERED PRODUCT <br /> The hydrocarbon mass removed during the SVE operating period was calculated using the equation <br /> M = C•Q•t <br /> where M = cumulative mass recovered (kg) <br /> C =vapor concentration (kg/m3) <br /> Q = extraction flow rate (m3/hr) <br /> t= operational period, in hours <br /> • Between 07 September 2005 and 07 December 2005, the SVE unit operated a total of 1,892 hours <br /> (Table 6) The average analytical results (approximately 1,230 µg/l) of the influent SVE air flow <br />' samples (Table 5), average diluted SVE influent flow rates (approximately 100 scfm, Table 6) and <br /> the operational period (1,892 hours) were used to calculate the approximate mass of extracted <br /> gasoline during this period <br /> During the fourth quarter 2005 operational period,the mass of hydrocarbons extracted by the SVE <br />' system was calculated to be approximately 744 pounds, or equivalent to a volume of 119 gallons of <br /> gasoline Added to the estimated 2,591 gallons of hydrocarbons extracted from the SVE system since <br /> 31 August 2004 (start-up),the total volume of hydrocarbons extracted to date is estimated at 2,710 <br />' gallons (Table 7) A plot of the cumulative mass (pounds) of hydrocarbons extracted to date is <br /> included in Appendix E,the volume/mass calculations for extracted hydrocarbons are included with <br /> Appendix G <br /> 1 <br /> 4.0 INTERIM GROUND WATER EXTRACTION REMEDIATION <br />' Between 07 September 2004 and 06 December 2005, interim remediation ground water P&T system <br /> was continuously operated at the site The ground water treatment operation and maintenance <br />' procedures for the site were outlined in AGE's Interim Remediation Work Plan -May 2003, dated <br /> . 21 May 2003 <br />' Advanced GenEnvzronmental,Inc <br />