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' 01 November 2005 <br /> . AGE-NC Project No 95-0142 <br />' Page 4 of 8 <br /> subsequent transport under chain of custody to MAI and Cal Tech Environmental Laboratory <br />' (CTEL)of Paramount Ground water samples were analyzed for the following <br /> • TPH-g in accordance with EPA Method 8015 Modified, <br />' BTEX with MTBE in accordance with EPA Method 8021 (8260B), and <br />' During June for the oxygenated fuel additives MTBE, DIPE, ETBE, TAME and TBA in <br /> accordance with EPA Method 8260B <br /> 3.0. FINDINGS <br /> tFrom field data collected at the SVE remediation system between April and September 2005 AGE <br /> determined the TPH-g concentration of hydrocarbons removed Analytical results of influent ground <br />' water samples and ground water extraction measurements were used to evaluate the volume of <br /> impacted ground water removed and mass of hydrocarbons treated <br /> r <br /> Ground water elevation, flow direction and gradient were determined from field data collected on <br />' . 24 June and 19 September 2005 The contaminant impact to ground water was quantified by the <br /> ground water laboratory data <br /> I <br /> 3 1 SOIL-VAPOR EXTRACTION <br />' The,SVE unit operated at flow rates ranging between 110 and approximately 115 cubic feet per <br /> minute (cfin) An induced vacuum (negative pressure) of approximately 25 inches of water was <br />' measured in the piping between the blower and the extraction wells Field data for the extraction <br /> system are summarized in Table 1 Hydrocarbon concentrations were not detected in the soil-vapor <br /> samples The analytical results are summarized in Table 2 The laboratory reports(MAI Work Orders <br />' 0504315, 0505424, 0508395) quality assurance/quality control (QA/QC) reports and chain of <br />- custody forms are included in Appendix C Concentrations of extracted organic vapor not <br />' measurable with the OVM <br /> 32 GROUND WATER TREATMENT RESULTS <br /> Between 17 March(1,189,167g) and 13 September(1,537,531 g) 2005, the pump-and-treat system <br /> was operational Utilizing a Blue-White Industries F-2000 flow meter, a total flow of 348,184 <br /> gallons(totalizer or 1,317,876 liter)was recorded during the operational period(Table 3) Based on <br /> the discharged water recorded on the meter,AGE estimated that on an average approximately 2,000 <br /> IAdvanced GeoEnvironmental,Inc <br />