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between MP 8 and MP 15. Everything in this section would drain towazd the second Piceance Creek crossing in Section 32, T2S, R96W. The next drainage section would include the section between the highest elevation point neaz the Cb Tract to the upper end of the pipelline corridor on Bames Ridge in Section 15, T4S, R96W, between MP 15 and MP 2;fS. All pipeline product in this section would drain into Stewart Gulch. This section would include one pair of manual shutoff valves at MP 15.5. As the pipeline corridor progresses east from Bames Ridge, it crosses over into another drainage basin, creating a drainage section between MP 23.5 and MP 27.5. All product in this section would drain to the Dry Fork Stewart Gulch. The next drainage section is the largest and spans from MP 27S south to the Pazachiute Site. This is the largest drainage section since it covers all of the Parachute Creek drainage basin. This section would include one pair of manual shutoff valves at MP 35. 4.3 Pipeline Spill Contingency For the most part, two types of "spills" might possibly occur during operation of the two pipelines. The first type would include a small pipeline leak that may be detectable by instrumentation readings (i.e., flow in versus flow out) or by • saturated soils observed during inspection of the pipeline. The second type of spill would include a catastrophic pipeline failure brought on by a major accident or natural disaster (e.g., a rockslide). It should be noted that design of the pipe, which includes steel casing, fusion bonded epoxy, and several inches of insulation, should be more than adequate to withstand greatber damage than similar pipes used for natural gas in the project vicinity. As part of the standazd pipeline operating procedures, the pipelines will be monitored continuously for pressure and flow and will be visually inspected periodically during operations. If a pipeline leak is suspected based on monitoring (e.g., an abrupt drop in pressure), American Soda would immediately implement emergency .procedures. Under most circumstances, the input valves to both pipelines would be shut down until the situation is rectified. Personnel from both the Piceance Site and the Parachute Site would mobilize to the pipeline corridor as soon as possible after receiving a report or indication of a pipeline breach. High priority azeas would be checked by vehicle first. These areas include both Piceance Creek crossings, both Pazachute Creek crossings, the four major county road crossings (two on Rio Blanco County Road 5 and two on Garfield County Road 215), and Davis Point. If no observable pipeline breach is detected, secondary areas including Collins Gulch (Rio Blanco County Road 3) and Stewart Gulch would be observed by vehicle.• If no observable pipeline Pipeline Plan of Development ~ Yanl~ee Gulch Sodium MineraLS Project Hmecion Soda. LI3.