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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran,REHS <br /> r.' 600 East Main Street <br /> a: '1`-, !"•. . ';-� PROGRAM COORDINATORS <br /> N, < Stockton, California 95202-3029 Robert McClellon,REHS <br /> Jeff Carruesco,REHS,RDI <br /> C9GiFOR��P <br /> Website:www.sjgov.org/ehd Kasey Foley, REHS <br /> Phone: (209)468-3420 <br /> Fax: (209) 464-0138 <br /> August 27, 2010 <br /> Ken Gillies <br /> Gillies Trucking <br /> P O BOX 8303 <br /> Stockton CA 95208 <br /> Subject: Gillies Trucking <br /> 3931 Newton Road <br /> Stockton, CA 95205 <br /> The San Joaquin County Environmental Health Department (EHD) has received and <br /> reviewed the letter work plan addendum Re: Workplan Amendment for Soil Vapor Extraction <br /> Test (SVET), dated August 25, 2010, prepared by your consultant, Stephen Muir of Stephen <br /> G. Muir, Consulting Geologist and Geophysicist (Muir). Based on favorable results during <br /> testing on well GT-10, Muir has proposed to also test six other wells in the area of soil <br /> contamination and to include total petroleum hydrocarbons quantified as diesel (TPHd) in the <br /> analytical regimen for vapor samples collected during the test. <br /> Muir states his belief that the additional testing will comply with the requirements of the San <br /> Joaquin Valley Air Pollution Control District (SJVAPCD) limiting pilot tests to 5 days. The <br /> EHD approves the additional testing provided that all SJVAPCD requirements and limitations <br /> are strictly complied with. The EHD also approves the additional laboratory analysis of the <br /> air samples collected during the tests as TPHd is the predominant contaminant in the <br /> subsurface associated with the unauthorized release from your former underground storage <br /> tank (UST) system. <br /> Questions or comments may be directed to Nuel Henderson by mail (address on letter head), <br /> or by telephone at (209)468-3436. <br /> Sincerely, <br /> Nuel C. Henderson, Jr., PG Adrienne Ellsaesser, REHS <br /> Engineering Geologist Acting Program Coordinator <br /> cc: James L.L. Barton, PG — CVRWQCB, 11020 Sun Center Dr. #200, Rancho Cordova, <br /> CA 95670 <br /> Stephen Muir, PG, EG, GP, PO Box 152, Woodbridge, CA 95258 <br /> SVE Pilot Test WP Addendum Approval Letter 0810 <br />