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. � 2 . <br /> ARCADIS GERAGHTY&MILLER MONTGOMERY WATSON <br /> ARCADIS Geroghty&Miller,Inc_ <br /> 35 East Wacker Drive <br /> _ Suite 7000 <br /> Chicago <br /> Lir. Robert Caston Illinois 60607 <br /> Zexel USA Corporation Tel 312 263 6703 <br /> 625 Southside Drive Fax 372 263 7897 <br /> Decatur, Illinois 62521 <br /> - ENVIRONMENTAL SERVICES <br /> Subjett: <br /> Groundwater Investigation Proposal - <br /> Zesel USA Corporation <br /> Decatur, Illinois <br /> ARCADIS Gereghty&Miller Project No.U00138.011 <br /> Chicago, <br /> Dear�ir. Caston: 21 May 1999 'I <br /> Contact: � <br /> In response to your request at our May 7, 1999 meeting, ARCADIS Geraghty& Tim Granzeier , <br /> Miller Inc. (ARCADIS Gera�hty&Miller)and Mont�omery Watson have jointly ', <br /> ' prepared this proposal for field activities associated with the �oundwater <br /> investi�arion of the Zexe( Sertling Lagoon Area,the Decatur Industry&Technology <br /> Center, and Zesel Carveout Area. As discussed, this approach to the field work will eXte�s�o�: , <br /> provide consistent procedures, facilitate sharing of data, and be performed at a cost - (312)263-6703 <br /> less than or equal to the cost of conducting tlie investiQations separately. With <br /> personnel from both ARCADIS Geraghty&Miller and�1ont�omery Watson <br /> conducting the field activiries, subsequent documentation of the activities and <br /> certification will also be streamlined. The scope of work follows. <br /> Groundwater Investigation Scope Of Work <br /> Twenty-three(23)groundwater wells are included within the two areas of <br /> considerarion: nine wells in the ZeYel Settling Lagoon rlrea and 14 wells in the <br /> Decatur Industry&Technology Center. The groundwater investigation will inc(ude <br /> samplin�of the 23 existing wells and hydraulic conductivity testing of seven wells. <br /> Prior to conducting field activities,a brief sampling plan will be prepazed and <br /> submitted to the Illinois Environmental Protection Agency(IEPA)for review and <br /> notificarion of sampling. <br /> The �oundwater sampling task will consist of the following steps: <br /> 1. A single round of water level elevation measurements will be collected from <br /> the 23 e:cisting monitoring wells. The water level of the unnamed tributary <br /> will also be measured from a fixed reference point. <br />