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i I <br /> S <br /> f _ <br /> I <br /> 07/20/92 <br /> • Confirmation soil borings : drill and sample SB3 , SB4 and MW- <br /> 7 . Complete SB3 as a 2" vapor extraction well (VSB3 ) and MW-7 <br /> as a 4" Ground Water Monitor well . <br /> 07/21/92 <br /> Destroy vapor well P1 . Drill and sample SB5 , SB6 , SB7 and <br /> SB8 . Complete SB5 as a 2" vapor extraction well (VSB5 ) . <br /> Hook up new vapor well VSB3 to vapor extraction, total flow <br /> 66 . 8 cfm (VSB3 , EX, P3-Swarm, and MWS ) Sample VSB3 for WEGE <br /> laboratory . <br /> 07/22/92 <br /> Collect influent and effluent samples of the system and vapor <br /> samples from P3 , EX, MW1 and MW5 for analysis at WEGE <br /> laboratory . Flow rate 61 . 5cfm. <br /> Drill and sample SB9 , SB10 , SB11 and SB12 . Complete SB9 <br /> (VSB9 ) and SB11 (VSB11 ) as vapor extraction wells. <br /> Shutdown system because of noticeable odor. <br /> 07/24/92 <br />• ' Exchange carbon. Stop vapor extraction from MWI , MW5, P3- <br /> Swarm and EX. Hook up vapor extraction wells, VSB5, VSB9, and <br /> VSB11 . Try clean air infection into MW5, EX and P3-Swarm. <br /> Pumping from wells with one pump and in3ecting with one pump. <br /> i <br /> Collect influent sample for WEGE laboratory. Sample <br /> effluent , VSB3 and VSB11 using lOS50 PID chromatograph. <br /> I <br /> 07/27/92 <br /> Sample influent canisters for WEGE laboratory. Sample VSB3, <br /> j VSB5 , VSB9 , and VSB11 using IOS50 . in3ecting with one pump <br /> i and extraction with one pump . Flow Rate 18 cfm. <br /> Hook up P3 , P3A and P3D to VSB5 for vapor extraction. Start <br /> vapor extraction both pumps . Sample influent canisters for <br /> WEGE laboratory . Sample effluent VSB5, VSB9, and VSB11 using <br /> 1OS50 . Flow rate 20cfm. <br /> 07/29/92 <br /> Collect influent and effluent samples of the system for <br /> analysis at WEGE laboratory . Flow rate 52cfm. <br /> R604 vapor , 7/31/92 , p. 4 <br /> 1 <br />