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Wm. J. Hunter & Associates Y9 October, 1994 - Approximately 128 CY'ds of contaminated soil was removed from the site & disposed of at a licensed landfill. Soil samples were takers aria 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 Wrn. 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 a October 11, 1995. t+. 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 geou'ndwater plume. Each probe hole was taken to 23' bgl, and soil and water sampleswere 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: • Mobilize a properly licensed C-57 auger rig & support truck's 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. • _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'oras.idirected 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 "' mefhod to be' of-bbtaining discrete,-U'ndistu'rbed soil samples for analysis. ��LL • 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. • Drill spoils and unused core material will be placed in clearly labeled, sealed metal drums and stored on location pending laboratory results. • After reaching total depth, 2", blank & slotted, flush, screw threaded PVC casing, fitted with a bottom cap, will be run in the hole. The bottom 20' of the casing to 1 2 r