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i October, 1994 - Approximately 128 CY'ds of contaminated soil was removed from the site & disposed of at a licensed landfill. Soil samples were taken and the hole was filled with clean material, and covered with asphalt. Refer to WJH report titled Interim Report Covering Results of Soil Contamination Investigation Valley Wholesale Drugs, dated January 3, 1995 for details of that work. August 3, 1995 - Three soil borings and three groundwater monitoring wells were placed on the property under the supervision of an RG from Wm. J. Hunter & Associates. The details of that work are covered in the WJH report titled Interim Report Covering Soil & Groundwater investigation, Valley Wholesale Drugs, dated October 11, 1995. August 25 1998 - Three soil probe holes were placed along the south side of the building in an attempt to better define the limits of the soil and groundwater plume. Each probe hole was taken to 23' bgl, and soil and water samples were taken & analyzed for BTEX, MTBE, and TPHg. The results of those analyses are shown on TABLES A & B. The MTBE detected was not confirmed, and all other analyses have been below detection limits. WORKPLAN FOR PLACING TWO 2" GROUNDWATER MONITORING WELLS: 1. Mobilize a properly licensed C-57 auger rig & support truck equipped with sufficient clean flights to complete each well without cleaning equipment. The locations of the proposed wells are shown on the attached PLATE A. 2. Soil samples will be taken at approximately 5' bgl, at the capillary fringe (estimated to be at about 9' bgl,) and at 5' intervals to a minimum of 25' bgl or as directed by the geologist in charge. Coring equipment will consist of either an 18" or 30" California Midified split-spoon sampler, or a continuous coring device; either method to be capable of obtaining discrete, undisturbed soil samples for analysis. 3. Cored material will be visually examined by the site geologist, and selected portions screened with a PID meter or similar device. A portion of each core will be immediately sealed and placed on ice pending transport to a certified analytical laboratory for testing. 4. If visual examination & screening of samples from MW-5 show the presence of contaminants, the hole will be plugged with a cement/bentonite mixture. The rig will then be remobililzed on a location approximately 20' to the north, and coring operations repeated in the same manner as detailed above.