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1 ' <br /> ATC Associates Inc. <br /> (: <br /> VYA%TC <br /> 1117 Lone Palm Avenue,Suite 201 <br /> Modesto,California 95351 <br /> 209-579-2221 <br /> fax:209-579-2225 <br /> A S S 0 C Q A T E 5 I N C <br /> for drinking water standards within the State of California. Based on the historical data, ATC is <br /> not concerned with the.potential for elevated TP.Hg concentrations in soil gas to impact. the <br /> environment with respect to soil and groundwater. - <br /> Report Preparation <br /> Upon completion of the limited indoor air study activities, a summary report will be prepared <br /> that will include a description of field activities, laboratory analytical data in tabular form, and a <br /> comparison of soil vapor analytical data to the ESLs and/or CHHSLs. <br /> Proiected Schedule <br /> Once approval of this workplan has been received, ATC will confirm a schedule for sampling <br /> activities. ATC will notify the San Joaquin County EHD at least 48 hours prior to beginning any <br /> field activities. The summary report will be submitted to the San Joaquin County EHD <br /> approximately 45 days after the completion of all field activities. <br /> If you have any questions or require additional information regarding this workplan, please <br /> contact us at(209) 579-2221. <br /> Respectfully submitted, <br /> ATC Associates Inc. <br /> � ff <br /> Nh7'HO,N Q , <br /> Nathan Christman,P.G. aa. <br /> CA Professional Geologist No. 8330 8 <br /> �fi yap, No.83,30 � <br /> Jea ne Homsey,P.E. <br /> CA Professional Civil Engineer No. 47410 <br /> Attachments <br /> cc: Mr. Jay Chapman, The Customer Company <br /> Mr. Jim Barton,RWQCB <br /> S:\Environmental\25847\37 Tracy\Reports\Workplans IA Wkpin.doc 5 ATC Associates Inc. <br />