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an:-3f 2094683433 <br /> EHD <br /> 4 <br /> F PAGE 02 <br /> ..� EALxH'I)EpARTMENT <br /> y a � Donna 2ti Herau SA r J OA��j\ �r <br />} ':C� ,IL&H.S. S� C O T r LJ N 1 1 <br /> fl ` Director 344 East V4re <br /> Al Olsen,,R.E.R.S. ber Avenue, Third .loo, C Vnlrs:rper�,rsors <br /> ;,. . StOGICt�tl C21ifo <br /> Carl Borgman,l't,E.H.S, <br /> � FOFN Lau L A-Crn MQnager > mid 4J2(1z-2]08 Mille Huggins,R.P-H,S.,R.D.I. <br /> cot�lla, L E JES. Telephone: (209}46$_3420 Douglas W-Wilson,R.E,H-S. <br /> Program Manager Marl;aret La <br /> Fax. (209)464-0138 gorio,R.EH.S. <br /> Robert McClrllon,KE.H.S. <br /> Mark Barorllos,R.L.H.& <br /> RYLU cURI57'TE -SE? 2 04 2DOS <br /> ARCO PROIDUCTS COMPANY ROSE V RoDGERS TRUST ETAL <br /> CENTERPOtNT DRIVELPRb-�6Z BILL & LORRAINE ILALVORSON <br /> LA PALM;c1 CA 90623-1066 10040 DAV-TS ROAD <br /> STOCKTOIq CA 95209 <br /> Former ARCO Station No. 2168 <br /> 441 W. Charter Way SITE CODE: 1056 <br /> Stockton CA 95202 <br /> San Joaquin County Environmental Health De <br /> Plan for the Abandonment of a Groundwater Monitorin <br /> Department(5,1C/E'HDj has reviewed Work <br /> Vapor�raction/Air S a 9 Well, In d In t It of n Interim Soil <br /> Groundwater"Onitaring We//,-,r—Addendum(Addendum) dated <br /> received by SJG/EH©on 5e Ystem, and installation of <br /> Inc- (URS}and has the following tuber 21, 2006 submitted on September 14, 2005 and <br /> g Comments. Your behalf by URS Group, <br /> In the Addendum URS proposes several changes to the previouslysubmitted conditionally approved work plan of the same name Work P mated and <br /> SJC/EHD approval conditions to the original Work Plan wereldn)dated June 8, 2006. <br /> dated June 23, 2006, detailed in correspondence <br /> �. The Addendum proposes the <br /> grouting, installation of 4. insteadof3 shon of allow ow eight vapor extraction ing b <br /> east side of the roe Y pressure <br /> property,rty, installation of 22 instead of the Originally wells located on the <br /> completed soil vapor extraction/air sparge g Y proposed 21 dual <br /> (SVE/AS)wells, and destruction b <br /> grouting through remediation piping of the SVE/AS wells following completion of th <br /> romediation. The Addendum alst�presented a site map showing a different Y pressure <br /> of the'SVE/AS well locations than was submitted in the original e <br /> remedial emphasis to a different portion of the configuration <br /> of <br /> g al Work Plan, with a shift of <br /> property: <br /> SJC/EHD does not <br /> Pressure groutingapprove the destruction of the existing vapor extraction wells by <br /> while y • These wells Were installers in documented contaminated soil, and <br /> w the have never been used as groundwater rnonito' wells <br /> r- <br /> depths that are currently.ln groundwater_ These va $ most of them have total <br /> overdrilling to total depth and backfilling with neat cement grout a lied t <br /> vapor wells must be destroyed by <br /> Pipe. URS has submitted via email on September 26, 2006 agfeEment that the <br /> will be destroyed by overdriliing, Please Mote that the site ma pp through a tremmie <br /> Addendum does not show the location of vapor wells VUV-6 se Wells <br /> are three of the wells proposed to be destroyed. p submitted with the <br /> { . VW-9 or VW-12, though tt'eY <br />