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UPg radienO Environmental GCultants <br /> October 3, 1996 <br /> ENVIRONMENTAL HEALTH DIVISION <br /> 304 E.Weber Ave.Third Floor <br /> Mr. Steve Sasson p O. Box 388, Sto�Jcton CA 95201-0388 <br /> PHS-EBD Approve87E1 <br /> 304 E. Weber Denied ❑ <br /> Conditions <br /> Stocktch, CA 95201 <br /> Date by <br /> Subject: Addendum to Work Plan for Site Assessmen <br /> Gillies Trucking <br /> 3931 Newton Road <br /> Stockton,CA <br /> Dear Mr. Sasson: <br /> In accordance with your suggestion, I have prepared this brief addendum to the Site <br /> Assessment Workplan for the referenced site. At your direction this date, I have made the following <br /> alterations to the previously approved work plan: <br /> 1) A boring will be drilled on the Barbot property at 3851 Newton Road near the <br /> Gillies/Barbot property line, and a hydropunch will be used to collect a groundwater sample, which will <br /> be analyzed by the mobile laboratory. If contamination is detected, the boring will be backfilled and a <br /> second boring will be drilled farther south near the center of the Barbot property and completed as a <br /> groundwater monitoring well. If no contamination is detected in the first boring, it will be completed as <br /> a monitoring well and a second boring will not be drilled. <br /> 2) As reqeusted by Mrs. Barbot, a water sample will be collected from her domestic well and <br /> will be analyzed for Total Petroleum Hydrocarbons as gasoline,BTEX, and MTBE. <br /> 3)Representative soil samples will be selected from those collected during this phase of drilling <br /> and will be analyzed for permeability, density, and other parameters as needed to facilitate the <br /> completion of a risk assessment analysis for this site. Additionaly, two samples will be analyzed for the <br /> presence of natu;ally occuring hydrocarbon-consuming bacteria and soil nutrients to assess the <br /> potential for natural attenuation/biodegradation of the hydrocarbons. <br /> Sincerely, <br /> Victor B. Cherven,Ph.D. <br /> President <br /> cc: Ken Gillies <br /> 9 <br /> 411182nd Street 3369 Kimberly Road <br /> Sacramento, CA 95826 Cameron Park, CA 95682 <br /> (916) 451-2891 1✓RK (916) 677-3055 <br /> 9 `"" Fax:457-1817 90 77Z _347A Fax: 677-3055 <br />