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'l <br /> San Joaquin County DIRECTOR <br /> Donna Heran,REHS <br /> Environmental Health Department <br /> ASSISTANT DIRECTOR <br /> 600 East Main Street LaurleCotulia.REHS <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Carl Borgman,REHS <br /> Mike Huggins,REHS.RDI <br /> c- P. <br /> Website.' www.sjgov.org/ehd Margaret Lagorio,REHS <br /> Phone: (209)468-3420 Robert McClellan,REHS <br /> Fax:' (209) 464-01:3,8 Jest Carruesco,RENS,RDI <br /> Kasey Foley,RENS <br /> lanuary 1:8,2008 I <br /> l <br /> Mr. Arnrit Grewal <br /> Grewal's Markei <br /> 4100 East 1Eremon't.S17-Cet <br /> Stockton,Cal.i.foinia 952,1-5 <br /> subje,et: GrevVal's:l�arket <br /> 4100 East Fremont Street ' <br /> Stockton,C'A.95215 <br /> ,he San )oarluin County Environmental Health .Department (EI-ID) has reviewed Addendum.tip s <br /> Wonitoring Well Installation yl ork P1ari --Deeeirtber 2007, dated Decernber 5: 2007. prepared and <br /> subi5iitted by Adiminced'GcoEnvironmciatal, hic. on your behalf for the above-referenced side. Iii <br /> the workplan AGE,proposes to,install one grouridwater monitoring well(MW-5) to total depth of <br /> approximately sixty-five feet below surface grade (bsg), azul advance three soil borings (P-17, P- <br /> 18, and P-19) to collect depth-discrete grub groundwater samples at potential petroleurri <br /> E hydrocarbon mign,at-ion pathways (6' further delineate ,die 1,2--diehloroethane (1,24WA) I <br /> groundwater plume. <br /> EFID approves the work plan as submitted. However, 1`11D recommends the three proposed soil <br /> borings be 'relabeled P-15,, P-16, and.11=1'7 to continuc the numerical sequence for .labeling <br /> borehofes.associated with this site. . <br /> 1 <br /> MW-'S will be screened at approximately forly-live to sixty-five feet bs.g at the location illus[ died <br /> on Figrare 2 of the work plan to rtroruitvr the 1;;2-DCA groundwater plume down-gradient of 1,2- <br /> DCA-impacted.rnon.itoling well .MW-4'. The tluee.proposed soil borings illustrated on Figure 2 <br /> will be advanced -to assess the cross:gradient extent of the 1,2-DCA-.impacted groundwater- <br /> plume. Soil samples will be collected at-five-foot intervals for lithological evaluation and not;for <br /> ehctsiical analysis. Proposed soil boring located adjacent to CPT-02 will be advanced to total <br /> depth of approximately fifty-five feet hsg to eo.11ect one grab groundwater sarnple.at total depth. <br /> Two soil borings proposed to be advanced in the sideway .on the west side of Oro Street and in <br /> the southwest corner of the Grewal's :Market property, will be advanced to total depth of' <br /> ,approximately ninety-'ti:ve feet bsg for .collectio.n of gtab gro>_rndwater-samples at approximately <br /> fifty-five,seventy=five, and ninety:t:i've feetbsg. <br /> i <br /> 1 <br />