Laserfiche WebLink
I , <br /> San Joaquin County <br /> .. <br /> DIRECTOREnvironmental Health Department11oPf <br /> Donna Heran,REHS <br /> 600 East Main Street <br /> PROGRAM COORDINATORS <br /> Stockton, California 95202-3029 <br /> Robert McCletion,RENS <br /> r• Jets Carruesco.RENS,RDI <br /> ���rFOFt�\P Website; www.sjgov.org/ehd KaseyFoley,REHS. <br /> Linda Turkatte,RENS <br /> Phone: (209)468-3420 <br /> Pax: (209)464.0138 <br /> February 18, 2011 <br /> Mr. Sergio Morescalchi <br /> Atlantic Richfield Company <br /> PO Box 1257 <br /> San Ramon,CA 94583 <br /> Subject: 76 Former BP Service 1 { ) Station#11192 LOP Case#:1995123 <br /> 1403 Country Club Blvd. Global ID#: T0607700329 <br /> Stockton CA, 95204 CUF#: 2413 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Second <br /> Revision to Work Plan Addendum for Additional Site Assessment (Plan), dated December 7, <br /> 2010. This Plan is the fourth proposal submitted to the EHD since the original work plan dated <br /> October 2005 was approved on November 9, 2005 but never enacted. The first addendum, <br /> dated March 26, 2010 was submitted at the request of the EHD to update the then out-dated <br /> original work plan. <br /> Since--the original 2005 work plan was approved by the EHD, off-site conditions that were to be <br /> investigated by ARCO have been mostly.addressed by Shell with the installation of their off-site <br /> monitoring wells S-15 and S-17 in March 2008. The March 26, 2009 Stantec Consulting work <br /> plan was submitted on behalf of ARCO with modifications that reflected the presence of Shell's <br /> new wells and included only the installation of MW-14. The plan was approved by the EHD in <br /> correspondence date July 6, 2009 with the condition that an additional monitoring well would be <br /> installed. Stantec's response to this request was reflected in the third work plan submittal, <br /> dated April 26, 2010. <br /> The EHD responded to this latest proposal in correspondence dated May 28, 2010 and <br /> determined that this latest plan was inadequate and advised ARCO that the on-site vertical <br /> extent of the groundwater plume and the lateral extent of'B' and 'C'zones were not defined and <br /> that no monitoring wells.were proposed in these areas/depths of concern. A revision to address <br /> these data gaps was requested by the EHD. <br /> FEB 2 2 2011 <br /> By <br />