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i the west to allow the backhoe to reach deeper; the north side of the excavation was extended about 3 ' where the metal shed had been located. Mr. Hunter arrived on location about 2: 30PM & observed M. Thorpe removing soil from the east end of the pit with the backhoe bucket. The spoil was placed on the ground near the site of the removed shed & P. Thorpe was picking it up with a front loader and placing it on plastic to the west and north sides of the excavation. Some weak petroleum odors were noted, but no visible staining or free product was observed. Sediments consisted primarily of loose to firm, very fine-to medium grained white to tan sands with occasional streaks of clay and some dark grayish-green nodules of cherty claystone. The petroleum odor decreased rapidly as spoil removal continued , and at approximately 32-33 feet all evidence of contamination ceased. Excavation continued to approximately 35 ' bgl ; sediments consisted of fine-to coarse grained, loose, clean sands ranging in color from gray-white to tan. There was no odor, staining , or evidence of free product. After discussion with Mr. Knoll of the EHD, it was agreed to take four- (4) samples from the sides of the excavation at about 20 ' bgl , and two (2) from the bottom at 35 ' bgl . Due to the depth of the hole, and the loose nature of the . sediments, it was not considered safe to eater the hole and take hand-driven samples. The backhoe bucket was used to collect the sample as directed by Mr. Hunter & Mr. Knoll . A sample was then taken by Mr. Hunter by driving a properly sterilized brass tuba into the spoil , promptly sealing it with teflon tape and plastic end caps, and wrapping securely with duct tape. Each sample was then labeled and placed on ice pending transport to the lab. The final configuration of the excavation S, sample locations are shown on Plates IX, X, & XI. The properly refrigerated samples were delivered to the laboratory by Mr. Hunter under proper chain of custody. Instructions were given to test for DTEX & TPM-G. The results of that analysis, summarized on Table VI , revealed that all samples were below detection levels for all tested substances. SOIL REMEDIATION PROPOSAL: Treatek Inc. has made a proposal for remediating the approximately 600 cubic yards of spoil that remains on the property. It has been moved to a site east of the house and barn and as being prepared for treatment. A copy of that proposal is attached to this report as Exhibit K. A workplan for implementing the proposal is being prepared for submittal to the County EHD. SUMMARY & CONCLUSIONS: As a result of the above investigative • work , which involved extensive spoil removal and sampling , all contamination has been removed from the site of the former UST. 6