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� � � �'•r Fm-, �, R5:ilk �' �"` �}" 'e�,J,':f f' "r r�< r �d Y; <br /> i <br /> y- <br /> ..y <br /> the pilot tont will be terminated. At the start up of the test, <br /> influent samples will be obtained from monitor wells P1, P3 and EX <br /> and an effluent sample well be obtained from the exhaust of the <br /> blower and analyzed for total Petroleum Hydrocarbons (TP11) as <br /> gasoline and diesel along with Benzene, Toluene, Fthylbenzcne and <br /> Xylenes (BTEX) using DIIS headspace method with FID chromatograph <br /> Western Geo-Engineer] (WEGE). Once breakthrough is indicated by <br /> PID readings. 3.nfluent samples will be obtained from the vapor <br /> extraction wells, the influent to the 'slower and the effluent from <br /> the charcoal tub scrubs and anlavzed for TPH and BTEX by the WEGE <br /> lab. Also an effluent sample will be obtained from the charcoal <br /> ,- <br /> tub scrub exhaust prior to shutting the system off and <br /> disconnecting it from the cells (for analysis by Chemtec <br /> Laboratories). This sample will be analyzed using EPA modified <br /> 8015 and 602 for TP11 and BTEX respectively. Throughout the test <br /> vacuum readings will be obtained from the ground water monitoring <br /> wells, to help establish the radius of influence of the vapor <br /> extraction system. <br /> This source test will help evaluate the amount of fuel range <br /> hydrocarbons available and the suppliemental fuel needed !.o <br /> achieves incineration using the Hirtz Incenerator for emissi,.,ns <br /> control during ground water and soil remediation for this site, <br /> see Figures 4A manifold for vapor extraction system and 4B <br /> schemtaic for vapor extraction system. <br /> Start up date for Pilot Test January S, 1991 <br /> Monitoring-hand held PID Alternate Days <br /> Duration (maximum) 1 week or breakthrough <br /> c�- <br /> If you have any questions, please call (916) 662 4541. <br /> Sincerely yours, �7 <br /> George L. Converse <br /> Project Geologist <br /> cc: Mrs. Diane Hinson, San Joaquin County Health <br /> Mr. Jorge De Guzman, San Joaquin County Air Quality <br />