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Vicki McCartney [EH] <br /> From: Vicki McCartney[EH] <br /> Sent: Friday, March 05, 2010 4:21 PM <br /> To: `Kirk Larson' <br /> Subject: RE: Five year reviews <br /> Kirk: <br /> 2969 Loomis Road, Stockton, California, - <br /> Three extraction wells (EW-4 through EW-6) were installed in January 2010, and the wells <br /> have been developed. Equipment is at the site for completing the three dual phase <br /> extraction (DPE) pilot tests that were approved by our department by letter dated March <br /> 23, 2009. Once the San Joaquin Valley Air District issues an Authority to Construct <br /> Permit (I've been told by Tamorah Bryant, P.E. of Geological Technics Inc. , that this will <br /> be completed within the week) , then the three DPE pilot tests will be initiated. The most <br /> current report for groundwater collected at this site on November 17, 2009, indicates that <br /> TPH-diesel was detected in five of the eight shallow wells with the highest concentration <br /> detected in MW-7 at 5,450 micrograms per liter. We will need the results from the pilot. <br /> tests before deciding how effective DPE is in reducing the contaminant mass at this site. <br /> 620 Charter Way, Stockton, . California <br /> By letter dated July 13, 2009, our department directed a feasibility-study/remedial action <br /> plan be submitted for this site. Prior to submitting a corrective action plan, Conestoga- <br /> Rovers and Associates (CRA) proposed additional site investigation involving the <br /> advancement of five CPT borings in the area most impacted, near CPT-4 and MW-16-50, to <br /> characterize subsurface lithology and identify potentially permeable subsurface soil <br /> units. Our department approved the work plan .propo.sed by CRA by letter dated February 19, <br /> 2010. Once this investigation has been completed, CRA will submit a corrective action <br /> plan. <br /> Please let me know if you need additional information. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> Phone: (209) 468-9852 <br /> Fax: (209) 468-3433 <br /> Email: vmccartney@sjcehd.com <br /> -----Original Message----- <br /> From: Kirk Larson [mailto:KTLarson@waterboards.ca.gov) <br /> Sent: Thursday, March 04, 2010 10:25 AM <br /> To: Vicki McCartney '[EH] <br /> Subject: Five year reviews <br /> Good morning Vicki: <br /> I your opinion, what is the status of the following sites: <br /> 2969 Loomis Road, Stockton <br /> 620 Charter Way, Stockton <br /> Thanks, Kirk <br /> Kirk T. Larson, P.G. <br /> Five Year Review Unit <br /> Division of Financial Assistance <br /> 1001 I Street <br /> 1 <br />