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POI McDonald Island Page 2 yards, was placed in the containers, awaiting shipment to an approved disposal site. Mr. Bill Snavely arrived on site at 10:30 Friday, 12 -November. The analytical data from the previous test results were reviewed. Based on these results, it was decided to conduct three (3) tests on the second set of samples: 1) Ethylene glycol; 2) Total Oil & Grease; and 3) TPH Diesel. Two composite samples were collected from the WP and EP sample locations. These were taken at six (6) inches and at twelve (12) inches below the grade of the second excavation. The results of the tests were ready at noon Monday, 15 -November. The six (6) inch depth test indicated low, but detectable, levels of ethylene glycol (11 mg/Kg), kerosene (45 mg/Kg)and motor oil (51 mg/Kg). However, there was a higher level of total oil & grease (1,200 mg/Kg). The twelve (12) inch depth test indicated higher levels for each constituent (ethylene glycol, 19 mg/Kg; kerosene, 190 mg/Kg; motor oil, 250 mg/Kg; and total oil and grease, 2,800 mg/Kg). As in the first sample test results, diesel was non-detectable. Copies of the lab reports are attached as Exhibit B. On 16 -November, Mr. Bill Snavely returned to observe the collection of five (5) more samples. Three (3) samples were taken at the WP sample location and two (2) samples were taken at the EP sample location. The WP samples were collected at eighteen (18) inches, twenty four (24) inches and thirty one (31) inches below the grade of the second excavation. The EP samples were collected at twenty four (24) inches and thirty four (34) inches below the grade of the second excavation. Immediately after the collection of these samples, the entire area was excavated to a depth of twenty five (25) inches below the previous grade. The test results from the last group of samples were available on 17 -November. These results indicated non-detectable levels for all constituents and locations except for one. The WP sample at twenty four (24) inches indicated an unknown hydrocarbon at 3.6 mg/Kg found in the late diesel range. This was not consistent with non-detectable levels for diesel on all previous test results. However, the area was excavated to one (1) inch below the point of this sample collection. Copies of the lab reports are attached as Exhibit C. All excavated material was placed in proper roll -off shipping containers. The material was profiled, manifested and shipped to the Chemical Waste Management disposal facility in Kettleman City. The excavated area was back-filled with fresh material and