Laserfiche WebLink
Final Remedial Plan - Geweke <br /> 2 January 1992 <br /> Page 11 of 15 <br /> 2) Bury the line below surface and connect the line to the vacuum <br /> extraction unit. <br /> i <br /> 3 . 7 . 5. PERFORMANCE TEST TO DETERMINE THE RADIUS OF INFLUENCE <br />' 1) Extract vapor from a perimeter extraction well with an <br /> operating rpm of approximately 2 , 000 and a flow rate of 50 <br /> cubic foot per minute (cfm) <br /> " 2) Monitor, measure and log the vapor "draw down" in each the <br /> remaining extraction wells. <br /> 3) Determine the radial influence of the vapor extraction well. <br /> 4) Report the findings in the first quarterly progress report. <br /> 1 <br /> 3 . 7 . 6. MONITORING PROCEDURES <br /> Vapor monitoring and logging of parameters of the vacuum extraction <br /> unit are performed on a daily basis in the first week of operation <br /> and a weekly basis thereafter. The following items are conducted: <br /> 1) Obtain and log the organic vapor level using a (photo- <br /> ionization detector: PID) from three locations: 1.) from the <br />' extraction line prior to combustion, 2) from the effluent line <br /> prior to the catalytic converter and from 3) the exhaust gas <br /> after the catalytic converter for each monitoring day. <br />' 2) Log flow rate, engine operational hours, engine rpm, vacuum <br /> readings and exhaust temperature. <br /> 3) Report the findings in the quarterly progress report. <br />' 3 . 7 .7 . CONFIRMATORY SAMPLING <br /> Upon indication of positive monitoring results, confirmatory <br />' sampling, is conducted. The following items need to be performed: <br /> 1) Drill confirmatory borings within the lateral extent of the <br /> contamination to a previously specified depth using truck <br /> mounted hollow stem augers. The location, number and total <br /> depth of the borings is subject to discussion with, and final <br /> approval of the SJEHD. <br />