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.'IM71 , <br /> g <br /> MCC 21r Sre=t Wcsodward, -Ayde Consultards <br /> Sune'00 c01L <br /> Cakia^a CP 9160 <br /> •a15j E9�3fi0: <br /> February 4. 1988 <br /> 882904 <br /> Mr, Hassan Pejuhesh <br /> Senior Sanitary Engineer <br /> Office of the State Architect <br /> P.O. Box 1079 <br /> Sacramen_0, CA 95805 <br /> Subject: Conduct Well Installation and Sampling and Complete a ProbZ_m <br /> Assessment Repot Assessing the Extent of Subsurface Soil and <br /> Groundwater Hydrc5hopn10�n1603nSoutn $t5treet�rDepartment <br /> Stockton, <br /> of Transportation <br /> California 9520E <br /> Dear Mr. Pejuhesh: <br /> Woodward-Clyde Consultants is pleased to submit the following proposal <br /> i <br /> to conduct the following: <br /> 1) <br /> Install_ Grooundwat?—r Monitorina Wells <br /> iii <br /> The soij borings completed in an earliere4wirchbdiameterted <br /> to groundwa�er monitoring wells by installing <br /> PVC well casing• It is assumed that these borings will remain <br /> and dissolved <br /> open. The wells Willles toemonitoortbothofloatingeow t;fie <br /> shalloW groundwater tat <br /> hydrocarbons. The deeper we nrderbtosevaluatefthe verticalth <br /> 60 <br /> approximately b0 to 60 feetEech <br /> extent of hydrocarbons in the groundwater. removemsedimentgfroml t <br /> will be developed by pumping or bailing groundwater <br /> the well casing and filter material. One set of <br /> baratnryfrom aforch well and t <br /> samples will be collected <br /> chemicalanalysis. OSA is <br /> commercial analyticaland <br /> responsible for the <br /> disposal soil cuttings <br /> l of all SA's removal of <br /> contaminated groundwaif teired�CC will assist O <br /> these materials, <br /> i <br /> 2} Conduct Groundwater Monitorin j <br /> in to <br /> survey g <br /> adient. The E <br /> Top-of-casing elevations will be established by <br /> permit evaluation of the local groundwaterin each well will <br /> groundwater levels and thickness of product <br /> gradient w ll shallow to undwa ter in this <br /> then be measured. Tresults will be used to establish the ' <br /> gr <br /> horizontal and vertical <br /> area. <br /> t , <br /> Consulting Engineers-Geologists <br /> anC EnVironMentBl SL'enllSt5 <br /> omires m tater Pnnc,vai C S es <br /> 8B2904-1 <br />