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which will seal the well from surface air. See attached well <br /> 1 logs. <br />' During drilling cores were taken every 5 feet to record the <br /> lithology _ of the well and also to obtain laboratory samples of <br />' the soil . The samples were sealed in brass tubes and placed on <br /> ice until they were delivered to the laboratory. The laboratory <br /> results and the chain of custodys are attached. Table 4 lasts <br /> the laboratory results. <br />' All of the VW wells were connected to 2 inch steel pipe which <br /> runs from the well site to the vapor treatment area. At a later <br /> date these pipes will be connected to a manifold and to a thermal <br /> oxidation unit which will extract the vapors and destroy them. A <br /> small compressor will be attached to VW-2 to inject approximately <br />' 7 cubic feet per minute at 8 psi into the groundwater as <br /> explained above. <br /> CONCLUSIONS <br />' The Environment Health Department will be notified when the <br /> thermal oxidation unit becomes available. At present it is being <br />' used 3n Stanislaus County at another site. Presently, we are <br /> negotiating with the regulators to receive closure on that site. <br /> Yours truly, r�y1 � i <br /> ID <br /> 4 vc` <br /> John Cussen <br />' Reg. Environmental Assessor #1979 NO 03979 <br /> Expires <br /> ERIgB E� <br /> CA L <br /> Richard Merriam <br /> CEG #850 <br /> Incl: 3 Chain of Custody itt <br />' 3 Laboratory Reports <br /> 1 Table • e�f�0�►�+� <br /> 7 Boring logs GFG <br />' cc: Mr. Roger Liston, Darpetro, Inc. <br /> Mr. G.L. Boggs, RWQCB <br /> 6 <br /> r <br /> Page 2 <br />