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• All chemical substances at the site shall be identified and labeled, and • MSDS sheets for chemical substances used in the workplace will be obtained and made available to workers. After installation of the diesel and gasoline fuel tanks, all fuel will be stored and handled within a bermed containment area. If a hazardous chemical spill should occur, absorbents and other spill control materials will be available, and workers will be instructed in their use and disposal. If a large spill should occur, the SWMP Administrator would be notified, the spilled material will be contained, and if necessary the area will be evacuated. The SWMP Administrator will determine whether a contracted responder or on-site personnel should clean up the spill. These determinations will be based on the nature of the material spilled, spill location, and the quantity of material spilled. For small spills manual clean-up techniques will be employed, these include sweeping and shoveling. Larger spills will require removal of contaminated materials by excavation or vacuum and pump systems. Spill clean-up materials, once collected, will be sampled and characterized to determine the proper method for disposal. Equipment and materials for a rapid spill response will be kept onsite, and workers will be instructed as to their location and use. Most hazardous chemicals that could spill at the Piceance or Parachute Sites are stored and used indoors on impermeable surfaces. It is most likely that hazardous chemical spills will occur and be contained indoors, preventing this material from contacting stormwater. In the event of a spill at either the Piceance Site processing area or the Parachute Site processing area material not immediately contained at the spill site could Flow into the stormwater system and ultimately into the stormwater retention pond. Once spilled material enters the pond an appropriate response action can take place to prevent pollution from entering waters of the State. This response action will effectively manage spilled materials at both sites, decreasing the chance of pollution leaving the site and entering State waters. 2.3 Other Controls Good housekeeping techniques will be employed during operations to minimize the potential for pollution to enter waters of the State. The following is a checklist of good housekeeping practices that may apply during these activities: • Implement employee training programs to address specific issues, • Minimize off-site vehicle tracking, Vehicle and equipment washing will be conducted in a controlled area to allow the collection of wash water, • Implement a gasoline and diesel inventory program to identify spilled fuel, • Regularly maintain vehicles and equipment, checking for drips and leaks, • Material load-out areas will be covered and kept free of product accumulation, • Facility wash-down water will be collected indoors and recycled, Preliminary Response Plan A-15 Yankee Gulch Sodium Minerals Pro~M American Suda. L.L.P.