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San Joaquin County DIRECTOR <br /> Donna Heran,REHS <br /> p?`p'u INC Environmental Health Department ASSISTANT DIRECTOR <br /> 600 East Main Street <br /> Laurie Cotulla,REHS <br /> <� Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> _ Carl Borgman,REHS <br /> Mike Huggins,REHS,RDI <br /> C P • Website: www.sjgov.org/ehd Margaret Lagorio,REHS <br /> q� FORe <br /> Phone: (209) 468-3420 RobertMcClellon,REHS <br /> Fax: (209)464-0138 .teff Carruesco,REHS,RDI <br /> Kasey Foley,REHS <br /> JAN 0 4 2008 <br /> RAYMOND GREER <br /> RAYMOND GREER CONSTRUCTION ALBERT & WANDA VELDSTRA <br /> 1601 CABRILLO COURT 15634 STEINEGUL ROAD <br /> MODESTO CA 95355 ESCALON CA 95320 <br /> RE: Former Greer Construction SITE CODE: 2021 <br /> 15634 Steinegul Road <br /> Escalon CA 95320 <br /> San Joaquin County Environmental Health Department (SJC/EHD) office has reviewed <br /> Work Plan Addendum (Addendum) dated January 3, 2008, submitted on your behalf by <br /> ATC Associates, Inc. (ATC) and has the following comments. <br /> The Addendum describes the proposed locations and methods for advancing six cone <br /> penetrometor test (CPT) borings at the above referenced contaminated underground <br /> storage tank site. The purpose of the CPT borings is to gather additional data to develop <br /> a more complete hydrogeologic model of the site and to investigate the vertical and lateral <br /> extent of the groundwater contamination. Target depth of the CPT borings is 130 feet <br /> below surface grade (bsg); a minimum of two discrete water samples will be collected at <br /> each boring location. <br /> SJC/EHD approves the proposed scope of work. If you have any questions or comments <br /> please call Lori Duncan at (209) 468-0337. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Lori Duncan, Senior REHS Nuel Henderson, Jr., PG <br /> LOP/Site Mitigation Unit IV Engineering Geologist, Unit IV <br /> cc: James Barton, PG, CVRWQCB <br /> Jeanne Homsey, PE, ATC <br /> Lorraine Sawyer, PG, ATC <br />