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�� KLEINFELDER Chevron and PG&E Pipeline Easement Area It is Kleinfelder's understanding that approximately 300 feet of the Chevron Crude Oil Pipeline will be removed and replaced by Chevron. This work is currently scheduled over a three day period beginning on November 7, 2005. The actual cut-out date is scheduled t for November 9, 2005. The section to be cut out spans the known footprint area extending though Area B and Area C (Plate 6). The southeastern section of exposed pipeline (about 70 linear feet) traversing Area A is not scheduled to be cut out since this ' area was noted as clean based on previous assessments and observations within the trench in this area. The Chevron Pipeline is currently exposed over the proposed 300- foot cut-out area. The developer, Pegasus is to provide native backfill material from the site area (outside the spill footprint area), while Chevron will be responsible for backfilling the trench and compaction according to their guidelines and pipeline safety/integrity needs. Two PG&E pipelines trend parallel and north of the Chevron Pipeline, including high pressure natural gas pipelines No. 2 (Line 2) and Line 401. Line 2 is 26" in diameter, buried about 4 feet north of the Chevron Pipeline at approximately 5 feet bgs (top of pipe). Line 401 is a 36" diameter pipeline, approximately 28 feet north of the Chevron ' Pipeline and buried about 7 feet bgs. Kleinflelder, PG&E and Chevron Pipeline representatives visited the site to evaluate soil conditions near the PG&E Pipeline No. 2 and Line 401 on Friday September 30, 2005. The selected locations were in Area C in which contamination was noted as deepest in the area in which the pipelines traversed the spill area. Two bellhole excavations were conducted to uncover Line 2 and Line 401 (see Plate 6). Mr. Kevin Armato, PG&E's corrosion engineer checked the wrapping of both Line 2 and Line 401. He commented that the coatings on both pipes were OK and measurements and coating observations did not show damage to the wrap or indications that the cathodic protection material had been damaged due to spilled hydrocarbons. A sample was physically removed from Line 2 and the coating checked on Line 401. A coating patch was placed on both pipes. Mr. Bryan Nicholson, Environmental Consultant with PG&E and Kleinfelder both collected soil samples in and around Line 2 and Line 401. Soils appeared impacted to depths of approximately 3 feet, but appeared visually clean without evidence of a petroleum odor in and immediately around Line 2. Field indications of contamination however, were evident in soil around Line 401. Analytical results showed non detect results around Line 2 and positive results at the top of Line 401. Contaminants were also detected from a sample collected at the bottom of Line 401 but at markedly lower concentrations. Environmental, geotechnical and safety considerations were discussed with both Chevron and PG&E representative's regarding removal of soil around both the Chevron and PG&E pipelines. Additional concerns regarding the down time during removal of the Chevron Pipeline was also of importance to Chevron. Chevron did not wish to shut down their line ' for longer than three days and the time to remove soil beneath the Chevron Pipeline was limited to approximately ''/z day, which is interpreted to be 12 hours. Based on, the short timeline and safety considerations indicated a large excavator should be the type of 44843.T04/STO5R1333/DH:ly Page 5 of 17 ©2105 Kleinfelder, Inc. October 25, 2005