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2 January 1992 (GeoAudit CV 43C5-1. 3) Page 2 of 3 Phase III--Ten samples were collected. Samples MCSW-1 through MCSW- 4 were collected from the four sidewalls at a depth of approximately 15 ft below grade, and six samples (MCSP-1A and B through MCSP-3A and B) were collected from the stockpiled soil. Samples were analyzed by WEST. Phase IV--Sample MCSW-5 was collected from the west corner of the excavation, approximately 7 ft northwest of MCSW-1, at a depth of 22 ft. Samples collected in Phase IV were also analyzed by WEST. RESULTS Copies of all laboratory results were included in the Preliminary Investigation and Evaluation Report submitted by Geological Audit Services to Mr. Stephen Schneider on 14 August 1991. These results are summarized briefly here. In sample GOT-1 minnow survival rate was 100%, indicating that the contaminated soil is non-hazardous. At the completion of Phase III, }' samples from the north, east, and south walls of the excavation were ND for all analytes except metals at the required detection limits. Metals values ranged from ND for cadmium to 82 ppm for chromium and 84 ppm for zinc. The sample from the west sidewall (MCSW-1) showed residual concentrations of 880 ppm TPH-d, 0. 06 ppm toluene, 0. 044 ppm ethylbenzene, and 0. 35 ppm xylene. This contamination was removed during the Phase IV excavation, and sample MCSW-5 was ND for all analytes except metals. At the request of Mr. Schneider, a wet-lead analysis was run on sample MCSW-2, which had the highest total lead concentration (8.4 ppm) of any sidewall sample. The soluble concentration was 0. 110 ppm. Samples from the stockpiled soil had hydrocarbon contamination ranging from 820 ppm to 4500 ppm diesel 'and 610 ppm to 700 ppm motor oil. One or more BTE&X compounds were present above detection limits in each sample. Other analytes were ND, except metals, which ranged up to 19 ppm for lead, 69 ppm for chromium, 73 ppm for zinc, and 40 ppm for nickel. REMEDIATION Following the successful excavation of the contaminated soil, Falcon Energy backfilled the excavation with clean Class 3 fill and poured a new concrete slab. On 16 September 1991, Evans Trucking hauled the contaminated soil to Forward Landfill for disposal. Copies of the bill of lading from Evans to Falcon Energy and Forward's contract and receipt form are attached.