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tN San Joaquin County <br /> 'Environmental Health Department DIRECTOR <br /> a: <br /> -. 600 East Main Street Donna He�ar�,REHS <br /> { Stockton, (California 95202-3029 <br /> PROGRAM COORDINATORS <br /> Robert McClellan,RENS <br /> v Jeff Carruesco,REHS,Rol <br /> fip" �� Website: WWW.sjgov.orgfehd Kasey Foley,RENS <br /> Phone: (209}468-34.20 <br /> Fax: (209)464-0138 <br /> April 8, 2010 <br /> Joe Toste Jr. <br /> JT Storage t <br /> 2480 Taste Road <br /> Tracy, CA 95376 ; <br /> Subject: Curtiss Pontiac-Cad iliac <br /> 2450 Tostel Road <br /> Tracy, CA 95376 1 <br /> San Joaquin County Environmental Health Department (SJCIEHD) has reviewed Ozone <br /> Feasibility Sampling:Report First Quarter 2010 (Report) dated March 8, 2010, submitted on <br /> your behalf by Advanced GeoEnvironmental, Inc. (AGE)and has the following comments. <br /> In the Report AGE' submits the results of laboratoryanalysis y performed on groundwater <br /> samples collected at the contaminated underground storage (UST) tank site located at <br /> 2353 Toste Road, known as Tracy Marine, which is located across the street to the west of the <br /> subject site, The Tracy Marine site has undergone groundwater remediation by ozone infusion, <br /> and the collected samples were analyzed for bromate, bromide, chromium and hexavalent <br /> chromium, which are;potential byproducts of treatment by ozone. <br /> In the Report AGE proposes to analyze groundwater samples from wells MW-1B and MW-4 on <br /> the Curtiss-Pontiac site for these same constituents to compare the results and help determine <br /> if the use of ozone infusion would be a feasible remedial alternative to treat the recalcitrant <br /> groundwater contamination at this site, These analyses would be done at the next scheduled <br /> routine groundwater monitoring and sampling event, which should take place in June 2010; The <br /> EHD agrees with this recommendation. <br /> 1fou have any y questions please: contact Lori Duncan at (209) 468.0337, or by email at <br /> Iduncan@sjcehd.com. <br /> Sincerely, <br /> i <br /> Lori Duncan, REHS Nuel C. Henderson, Jr., PG f <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> l <br /> c: James Barton, CVRWQCB, 11020 Sun Center Drive#200, Rancho Cordova, CA 95670 <br /> Brian Millman, AGE, 837 Shaw Avenue, Stockton CA 95215 <br /> I <br /> l <br /> I <br />