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1386 EAST BEAMER SMUT <br /> LI ESTERN WOODLAND, CA 95695-960" <br /> GEO-ENGINEERS FAX (916) 662-027- <br /> CALIF CONTRACTOR# 513857 A CORPORATION (91 b) 668-530+ <br />. REGISTERED GEOLOGISTS <br /> July 23 , 1991 <br /> Mr. Wilbur H. Smith II <br /> Vice President <br /> SIMS-GRUPE MANAGEMENT CORP. INC. <br /> 374 Lincoln Center <br /> Stockton, CA. 95207 <br /> ( 209 ) 478-9200 <br /> RE: July 22 , 1991 letter requesting information concerning <br /> the site investigation and details of the recovery-treatment <br /> system for former Regal Station 603 ( EXXON) located at 6425 <br /> Pacific Avenue , Stockton, California. <br /> Dear Mr . Smith: <br /> I have conferred with our client , Wickland Properties, concerning <br /> your request for additional information concerning our remediation <br /> of the above mentioned site . Wickland Properties agrees that the <br /> requested information should be shared and requests that you <br /> supply us with similiar information concerning your remedial <br />• investigation at Lincoln Center as follows : , <br /> 1 . Location of wells , data regarding current concentration <br /> levels , and direction of ground water flog. <br /> 2 . Existing analytical results indicating VOC <br /> concentrations . <br /> 3 . Existing analytical results indicating Total Petroleum <br /> Hydrocarbon and BTEX concentrations . <br /> 4 . Boring logs and monitor well construction logs . <br /> 5 . Depths at which VOCs are found. <br /> 6 . Aquifer test results , if any . <br /> As you mentioned in your letter, since we are about to undertake <br /> A-7 a *'k,=, a3„-,.;o 1nForMai_1 ^n .1 c nPPded to <br /> remediation 8 L. 4111.-7 S i..-e, Y _ <br /> evaluate the impact the Lincoln Center site will have on our <br /> remedial efforts . <br /> During initial start up of our remediation, vapor extraction will <br /> be the primary focus of our clean-up operation, the current <br /> drought conditions have lowered the ground water level in our <br /> wells to a five foot depth . Destruction of the petroleum vapors <br /> ® will be accomplished using a REMOX incenerator at 14000F, <br /> accomplishing better than 91% destruction of the hydrocarbons , <br /> Page I <br />