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W801 <br /> GROUNDWATER <br /> [::11:11:11 TECHNOLOGY, INC. <br /> OIL RECOVERY SYSTEMS 4080 Pike Lane, Suite D, Concord, CA 94520-1227(415)671-2387 <br /> August 5, 1987 <br /> Mr. Dan Moe yjczayZj <br /> San Joaquin County Health Department <br /> P.O. Box 2009 AUG 7 1987 <br /> Stockton, CA 95201 <br /> Re : Proposal No. 647 ENVIROMENTAL HEALTH <br /> FERMIT/SERVICES <br /> Dear Mr. Moe, <br /> As per our phone conversation of August 5 , 1987 I would like <br /> to clarify the following points in relation to proposal 647 , <br /> dated June 2 , 1987 . <br /> 1 . During installation of the monitoring wells, a <br /> . 020-slotted PVC screen will be installed to 20-feet <br /> below the first encountered water and 10-feet <br /> above the highest expected water level . <br /> 2 . Soil samples collected during drilling will be <br /> analyzed for benzene, toluene, xylene and total <br /> petroleum hydrocarbons using Modified EPA Method <br /> 3550/8015/8020 which is a gas chromatograph/flame- <br /> ionizing, detection (GC/FID) analysis . <br /> 3 . Water samples collected from the monitoring wells <br /> will be analyzed for benzene, toluene, xylene and <br /> total petroleum hydrocarbons using modified EPA <br /> method 3550/8015/8020 which is a GC/FID analysis. <br /> If you have any questions or need further clarification on <br /> these matters, please contact me at (415 )671-2387 . <br /> Sincerely, <br /> GROUNDWATER TECHNOLOGY, INC. <br /> Neal Farrar <br /> District Sales Representative <br /> Geologist <br /> NF: sm <br /> Cc : Frank Laduca <br /> Other q[faces:Redondo Beach,CA;Tampa.FL;Mandeville,LA;Norwood,MA;Novi,MI; <br /> Mirmeapolis. MN;Greenville,NH;Chadds Ford,PA;Montreal,Quebec,Canada <br />