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Gregory P Fkfther <br /> Environmental Coordinator <br /> TR 3038 <br /> 713/293-5683 <br /> Marketing Conoco Inc <br /> North America PO Box 4784 <br /> March 6, 1992 Houston TX 77210-4784 <br /> o-, - , -,T <br /> Ms Ehnore Ratlith ' <br /> San Joaquin Local Health District <br /> Environmental Health Division �1A 199Z <br /> 1601 East Hazelton Avenue ENV1r .,, ,- rILALTH <br /> Stockton, California 95201 PPKIV1+ i , v GFS <br /> Re: Hydrogeologic Assessment And Quarterly Monitoring Report <br /> 4325 East Washington Street <br /> Stockton, California <br /> Dear Ms. Ratlith <br /> Please find enclosed for your review a copy of the report detailing the installation and <br /> sampling of four additional ground water monitoring wells and fourteen additional vapor <br /> extraction wells To date, 48 wells have been drilled on and near the site to investigate <br /> and remediate soil and ground water impacted by petroleum hydrocarbons I believe <br /> the site is more than sufficiently defined as to location of hydrocarbons in the soil and <br /> ground water <br /> The vapor extraction system continues to operate and is proving effective in remediating <br /> both soil and ground water Six of the fourteen new vapor extraction wells were <br /> installed at depths designed to remediate ground water <br /> Quarterly sampling of the newly installed monitoring wells has been scheduled and <br /> reports will be provided to you as they become available <br /> Should you have any questions please contact me at 7131293-5683 <br /> Sincerely, <br /> /A <br /> Gregory Fletcher <br /> Coordinator - Environmental Affairs <br /> GPF/bg <br /> enc <br /> cc w/enc Environmental Affairs <br /> California Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sdr ramento, Ca.,ifornid 95827-3098 <br />