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Mr. Jeffery Wong 7h3adweI10 <br /> 12 October 1999 <br /> Page 2 <br /> • Up to five shallow soil samples will be collected at approximately 1-foot below ground <br /> surface. <br /> All soil and groundwater samples will be analyzed for petroleum hydrocarbons, and selected <br /> ones will be analyzed for and CAM 17 metals (including hexavalent chrome), volatile organic <br /> compounds, and semi-volatile organic compounds. Soil samples will be analyzed for soluble <br /> lead if total lead concentrations exceed 100 milligrams per kilogram (mg/kg). <br /> The sampling and waste containment and disposal procedures identified in the 9 September 1999 <br /> Work Plan will be followed. We anticipate that the proposed work can be completed in 1 to 2 <br /> days, and would like to perform the drilling work on 15 and 18 October 1999. Please call with <br /> any questions regarding this addendum. <br /> Sincerely yours, <br /> TREADWELL&ROLLO, INC. <br /> vicl Cl! Dixon Philip G. Smith <br /> Project Manager Principal <br /> 25970114.DGD <br /> Attachments <br />