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Sodium Bicarbonate and Sodium Carbonate Solutions Sodium bicarbonate and sodium carbonate aqueous solutions (sodium solutions) will be contained within aboveground well field piping and equipment within process buildings. Therefore, they will not be readily released into the environment. Should a small release of sodium solutions occur on a permeable surface (such as soil) the material would be immediately shoveled onto plastic or into 55-gallon drums. Shoveling will cease after either a visual check or a pH measurement confirmed that the spilled material had been recovered. If a small release occurs on an impermeable surface (either outdoors on concrete or indoors), the material would be absorbed by absorbent pads, booms, or other related material. If a large release of sodium solution occurs onto permeable or impermeable surfaces, the material would be recovered by use of a vacuum truck. All materials recovered would be sampled and analyzed to determine whether the material would be recycled or disposed. Recycling is the preferred alternative and would occur through use of existing on-site processes. Disposal would occur only if the sodium bicarbonate or sodium carbonate could not be feasibly recovered. Disposal would be performed in compliance with all applicable regulations. American Soda will have a vacuum truck situated at both the Piceance and Parachute Sites. The capacity of each truck is 3,200 gallons (or 10 tons of soda ash). Vacuum trucks will only be used to recover sodium bicarbonate and/or sodium bicarbonate materials or they will be appropriately decontaminated between use for different materials. They will not be used to recover diesel fuel or unleaded gasoline spills. Both sites will also be equipped with temporary berming and other related materials in order allow for the vacuum truck to mobilize to the spill area. Sodium Bicarbonate and Soda Ash Solid Sodium bicarbonate and soda ash solids (sodium solids) will be contained within process equipment until they become final products and are transferred to bulk loadout areas. Bulk loadout areas at the Parachute Site are equipped with ventilation systems that route airborne dust to dust collection equipment. Some loadout areas are also equipped with floor sumps to collect material that has been spilled. Both dust collectors and floor sumps will be equipped with systems to recycle the collected material. Therefore, the tendency for sodium solids to be released into the environment is minimized. Releases of sodium solids would be handled using the same methods described above for sodium solutions. 24 Preliminary Response Plan Yankee Gulch Sodium Minerals Project American Soda, L.L.P.