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ENVIRONMENTAL HEALTH DIVISIO <br /> 304 E. Weber Ave. Third Floor <br /> P O. Box 388, Stockfnn CA 95201-0388 <br /> Approved <br /> Denied ❑ <br /> j/Conditions SEG CnM01,CATS <br /> L 1 f <br /> Date' <br /> f Q0 ftMT6R-LA S Amp L AAL <br /> 14 PPi21 8 R o w v A Y o <br /> C A L D W E L L <br /> 2• �l-r�sPaustar.� P� - <br /> June Z4,1999 <br /> Yn USS 5aua& Tia <br /> Mr.Ronald Rowe <br /> 1 s e, 1 1/�- ,S COOS cH1 isH <br /> voyPhDonlsh servitor <br /> Pos Offs ter Avenue Post Office Box 8$ <br /> �y ss Soockron,Califor ua 95201-0388 . 0v-16271-001/1 <br /> ��T ([/,���' ,'`P+�" Subic= Work Pfaa for Qerarter}y Samplingg of Monirariag Wells <br /> TEtT Tnrtking,11395 North EiigJiway 99,Lodi,Califalnia <br /> Dear Mr.Rowe: <br /> on behalf of TBC.T Trusking,Brown and Caldwell($C)is,submitting chis work plan for <br /> cbe quarterly sairivling of four groundwater monitonng wells a the subject site(Figure 1). <br /> The objective of this work plan 1s to eoliect data and esubli., a history of analyck <br /> �rnundwater data for the site. The purpose of the quarterly groundwater sampling is to <br /> determine the magnitude of petroleum hydrocarbon concenctanoas in gmuntfwarrr and <br /> the direction and gradient of groundwater flow beneath the subject sire. Upon review and <br /> wrmum appnrral tram the San Joaquin County isublit Health Services Eavironmental <br /> Ftaith D1vislon(Cotettry),tltis rock plan avill fx submitted to the UST Cleanup Fund <br /> 1 (Fund)for prrapprovai. Upon preapptnval from the Fund,work will continue. <br /> pt6e05t$ The following,describes the scope of work and time completioa for a summary letter of the <br /> (� +r rendrs of this work on a quarterly basis. <br /> 6 I j F, ��r v� Scope of work <br /> SC will Conduct quarterly sampling of four monitoring wells. Each sampling event*.viii <br /> The mead remem of the depth to water of each well,purging each well of three casing <br /> volumes; <br /> • Field meznuemwt of waver quality parameters(pK EC,temperature,and dissolved <br /> oxygen); <br /> A' 1 • Collection of appropriate groundwater samples; <br /> 76,.eov.F z u p wnd.m mmvnimw=eb die rrmrda.a&of the eraimnmrnul cmuadrarq very m rEe lime to w� . <br /> • T��� ! _ aenurad rt sbos d nor b[,efied won yr pmni�s oder tAgn rba�te mom is a� <br /> V V I f°' P�'�'d++rd:hn Cody ro tix aamr yf <br /> aescopr ef�mvnt anr�ma andmnzni. 7f u znvrt does neu guameoee diet n0 eddirianal envieemnerrtal�rmninariaa <br /> eeypee4 f(!ft desn�it edit rayon esiw.e(illSi[G <br /> .'t-- <br /> ! iY16,12.-.1 i: 191 i".::-- <br />