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San Joaquin County DIRECTOR <br /> ° ' " Environmental Health Department Donna Her an, RENS <br /> .0 <br /> �O.Pc��':: O ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla, REHS <br /> a: a <br /> Stockton , California 95202-3029 <br /> PROGRAM COORDINATORS <br /> Mike Huggins, REHS, RDI <br /> Margaret La orio, REHS <br /> � <br /> 6q , , =��P Website: www.sjgov. org/ehd Robert McClellon, RENS <br /> iko'a <br /> Phone: (209) 468.3420 Jeff Carruesco, REHS, RDI <br /> Fax: (209) 464-0138 Kasey Foley, REHS <br /> May 4, 2009 <br /> Foppiano Investments <br /> Ernest Foppiano <br /> 5313 Knox Drive <br /> Linden , CA 95236 <br /> Subject : Stockton City Taxi Service Site Code : 1117 <br /> 2085 Fremont Street <br /> Stockton , CA 95205 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Vapor <br /> Extraction Well Installation and Pilot Test Report (Report) dated April 30 , 2009, submitted on <br /> your behalf by ATC Associates Inc. (ATC), and has the following comments . <br /> The Report documents the installation of four soil vapor extraction (SVE) wells and the <br /> results of a series of both short and long-term SVE pilot tests that were conducted at your <br /> site in October of 2008 . The results of the pilot tests indicate that SVE would be an effective <br /> method for remediation of the petroleum hydrocarbon contamination remaining in the soil <br /> beneath your site. <br /> In the Report ATC recommends implementation of SVE remediation . The EHD agrees with <br /> this recommendation . The reported calculated radiuses of influence of the four SVE wells <br /> installed for the tests indicate they would likely be adequate to implement the full scale SVE <br /> remediation . Please proceed with submittal of a work plan detailing the SVE system design, <br /> set up and procedures for conducting the remediation . Deadline for submittal of the work <br /> Tanis--June--1 ,-2G 9;deadtineier4mplementation of the remediation-is- July 17,2009- - - <br /> ATC also recommended conducting a pilot test for ozone infusion to address the <br /> groundwater contamination at this site. This recommendation was approved by the EHD in <br /> correspondence dated April 1 , 2009; a work plan for conducting this test is due for submittal <br /> no later than May 29, 2009 . <br /> If you have any questions please call Lori Duncan at (209) 468-0337. <br /> Sincerely, <br /> Lori Duncan , REHS Margar�o, REHS <br /> Registered Environmental Health Specialist Program Coordinator <br /> c: James Barton , CVRWQCB , 11020 Sun Center Drive #200 , Rancho Cordova , CA 95670 <br /> Jeanne Homsey, ATC, 1117 Lone Palm Avenue Suite B, Modesto CA 95351 <br />