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� � J C Mr. Bob Gondek A M B R I A March 11,2004 At 9:27AM PST on December 4, 2003, CPL detected a pressure drop in the KLM pipeline. CPL also received a phone call from the property caretaker informing them of the release. CPL immediately "shut in" the affected section of pipeline and dispatched emergency crews. To minimize the potential release volume, CPL shut off the pipeline at the closest valve points and began to back-vacuum oil within the pipeline towards the nearest substation away from the rupture point. CPL estimates that approximately 750 barrels(bbl)of crude oil_were released between the time of initial rupture at approximately 9:30AM and approximately 11PM that evening when the leak © was stopped. The bulk of the observable oil release flowed from the rupture onto the ground surface and then to the east following furrows created by tilling of the fields. Following the same furrows, oil also flowed to the west. Portions of the oil also flowed to the northeast following tire tracks left by the tractor upon leaving the fields after the rupture and to the northwest following tire tracks laid down to outline the pipeline trace prior to tilling. A portion of the crude oil release sprayed from the pipeline into the air falling back onto surrounding agricultural land southwest of the rupture. Photograph 3 was taken at about 11:50AM,approximately 2.5 hours after puncture of the pipeline. SITE SETTING The Site and surrounding land use is agricultural. A barn, the caretaker's residence, and several associated structures are located approximately 1,800 ft east of the release site. The Spatafore property is bounded by HWY 205 to the south and Mountain House Parkway to the east (Figure 1). CPL maintains an 18 inch subsurface pipeline that traverses a portion of the Site running parallel to two PG&E natural gas pipelines (Figure 2). Commercial development has been proposed for the property. Lithology: Based on surface soil samples and samples collected from test pits, soil beneath the Site appeared composed of brown silty sand with clay and organic material from the surface to 1 to 3 ft below ground surface (bgs). The surficial soil is underlain primarily by light brown silty sand and sand with increasing grain size with depth to the total depth explored of 23 ft bgs. Samples logged by Cambria suggest high estimated permeability in soils greater than 3 ft bgs. Depth to Groundwater: To evaluate depth to groundwater beneath the Site, Cambria directed excavation of a test pit to 23 ft bgs in an area outside of the release area (Figure 2), no groundwater or wet soils were encountered. Depth to groundwater in the site vicinity is between 15 and 40 ft bgs based on wells installed at other sites in the area. 2