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� v <br /> kT C <br /> A S S O C I A T E S I N C <br /> ' December 30, 2003 <br /> 54 25291 0001 <br /> ' Mr Jeff Wong <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E Weber Street, Third Floor <br /> Stockton, California 95202 <br /> Subject Vapor Extraction Pilot Testing at the Former Raymond Greer Construction Facility, 15634 <br /> Stemegul Road, Escalon, California <br /> Dear Mr Wong <br /> ATC Associates Inc (ATC) has completed a vapor extraction pilot test the above referenced site It is <br /> ATC's opinion that vapor extraction is a viable remedial option for remediating impacted soil at the site <br /> and ATC recommends enhancing soil vapor extraction with another alternative such as air sparging or <br /> groundwater extraction and treatment <br /> If you should have any questions or comments regarding this report or our recommendations, please feel <br /> free to call us at your convenience at(209) 579-2221 <br /> Respectfully submitted, <br /> ATC Associates Inc <br />' John Sellman <br /> Staff Geologist <br /> 11,4ws Nom' <br /> Drew Van Allen <br /> Senior Project Manager <br /> 1, <br /> J nne Hornsey, P EOF <br /> � - � 1j <br /> CA Registered Civil Engineer No 47410 'r' •' <br /> cc Mr Raymond Greer <br /> Mr James Barton, RWQCB <br />