Laserfiche WebLink
8 August 2000 <br /> . AGE-NC Project No 95-0143 <br /> Page 8 of 8 <br /> extraction, not from air spargrng <br /> • TPH-g was detected at an average concentration of 505µg/1 over the quarter In the soil vapor <br /> samples from the Intake to the SVE unit <br /> • During this quarter the SVE operation removed approximately 89 gallons of gasoline, but <br /> only operated a total of 1870 hours <br /> • Operation of the SVE and IAS units was Interrmtant over the quarter due to utrhty failures <br /> and system maintenance Issues <br /> • The sparging system supplies approximately 20 cf/h of air to each spargrng well <br /> 5.0. RECOMMENDATIONS <br /> Based upon data collected during the May 2000 and previous sampling events and SVE system <br /> monitoring results, AGE recommends <br /> • Continued quarterly monitoring of the ground water monitoring well system on the site The <br /> • next quarterly monitoring will be scheduled for August 2000, <br /> the Madison site concurrent with monitoring at <br /> • Continued operation and monitoring of the SVE and IAS systems at the site <br /> 6.0. LIMITATIONS <br /> Our professional services were performed using that degree of care and skull ordinarily exercised by <br /> environmental consultants practicing in this or sm-iilar localities The findings were based mainly, <br /> upon analytical results provided by an independent laboratory Evaluations of the soil and ground <br /> water conditions at the site have been made from a rimmed number of available data points (I e <br /> ground water samples and measurements and SVE system monitoring points), and subsurface <br /> conditions may vary through time and with distance from these data points No other warranty, <br /> expressed or Implied, Is made as to the professional recommendations contained m this report <br /> Advanced GeoEnvironmental,Inc <br />