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R�� <br /> Geological oglcal Audit Services, Inc. ", ,g�'/ <br /> "V= Environmental Professionals <br /> 1803 March Lane, Suite A•Stockton,CA 95207-641'4•(209)956-0264•Fax(20if)A64700 1le <br /> March 3, 1994 <br /> SC-95-01-1078-02 <br /> Ms. Mary Meays <br /> San Joaquin County PHS/EHD <br /> P. O. Box 388 <br /> Stockton, CA 95201 <br /> IN <br /> Subject: tiaprtir� :at:rattaur%Test <br /> Marlowe Properties G <br /> 4648 Waterloo Road, Stockton, California <br /> Dear Ms. Meays: <br /> 1= accordance. with the request of our client, ltll. Y©nathan Marlowe, Geological Audit <br /> se—Mces, luc. (CeoAudit) will be performing an eEg it-Hour vapor extraction test at the <br /> sub je,C.i site.. f <br /> Vapor Extraction Test_ � <br /> A portable internal combustion system will be setup on-site and operated for a period of 8 <br /> to 1.0 lours to determine the subsurface permeab lity to vapor, radial influence of the vapor <br /> extraction well and the initial hydrocarbon recovery rate) <br /> These parameters will facilitate in the design. of the S1E system and will be used to <br /> determine the number of"vapor wells, the spacing of the wells, and tate selection. of a vapor,... - A-..�..-gib- - �. _ P _. <br /> remedia4,aon system (i,e. antsrnal coitibvstion 4ihermal o3aif�itlon, etc,). The selection of a <br /> vapor remediation system will be determined by evaluating theconcentrations of extracted <br /> hydrocarbon vapor and the estimated supplemental fuel require�rnents for each of the vapor <br /> remediation systems.The determination of these par amet.e,rs ares absolutely necessary for the <br /> design and implementation of a SVE system that can meet the remediation objectives. <br /> Remediation well VW-1 will be used as the prinnary extrac%tion well. Monitoring well MW-1, <br /> which presently_ contains only a few feet of water, will be used an observation well. <br /> Additionally,'two of the remaining*monitoring wells (MW2 tl:.rough MW-4) will be used as <br /> an observation wells. <br /> 1 <br /> I� <br /> i <br /> Full Spectrum Environmental Services• Hydrogeo ogy <br />