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1 ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K. Heran, R.E.H.S. <br /> 304 East Weber Avenue, Third Floor Carl Borgman, R.E.H.S. <br /> ;� Director Mike Huggins, R.E.H.S ., R.D.I. <br /> At Olsen, R.E.H.S. Stockton, California 9$202-2708 Douglas W. Wilson, R.E.H.S . <br /> 4.1 <br /> i • �q , � ..�w • Program Manager <br /> Telephone: (209) 468-3420 Margaret Lagono, R.E.H. S. <br /> FORS Laurie A. Cotulla, R.E.H.S. Robert McClellan, R.E.H.S . <br /> Program Manager Fax: (209) 464-0138 Mark Barcellos, R.E.H.S. <br /> AVTAR SOHAL <br /> 819 NEW HALL CT <br /> STOCKTON CA 95210 <br /> NASHEEM KHAN <br /> PO sox 948 AUG 0 7 2003 <br /> EMPIRE CA 95319 <br /> RE: QUICK & SAVE <br /> 1901 SOUTH ELDORADO <br /> STOCKTON CA 95206 <br /> This letter is a memorandum of the conversation between San Joaquin County <br /> Environmental Health Department (EHD) and your consultant Advanced <br /> GeoEnvironrnental, Inc. (AGE) at the above-referenced site during implementation of the <br /> work as proposed in the Preliminary Site Assessment Plan dated October 25, 2000 prepared by <br /> AGE. EHD requests that at least one soil sample from each significantly similar lithological <br /> layer be submitted to a lab for soil physical characteristic analyses such as permeability, <br /> porosity, dry bulk density, moisture content, and organic carbon content. <br /> High levels of oxygenates were reported in the soil samples from the tank removal in <br /> October 1999. Presence of hydrocarbon odor and discoloration were also observed in the <br /> soil samples collected during implementation of the preliminary above-mentioned work. <br /> The site is a potential candidate for interim remediation such as soil vapor extraction (SVE) <br /> since SVE is particularly effective against contaminants such as methyl tert butyl ether <br /> (MTBE} due to the chemical's high vapor pressure in the vadose zone. Soil physical <br /> characterization is crucial in determining subsurface transportation mechanism of <br /> contaminants, and whether SVE is a feasible remediation technology at the site. <br /> Please direct any questions to Jeffrey Wong at (209) 468-0335. <br /> Donna Heran, RENS, Director <br /> Environmental Health Department } <br /> G . F l t .J <br /> Je ey Wong, Senior HS <br /> LOP/Site Mitigation Unit N <br /> Cc: CRWQCB, Central Valley Region — James L.L. Barton, RG <br /> Cc: Advanced GeoEnvironmental, Inc. — Donna Sexton / Robert Marty <br /> / L <br />