This task order includes the preparation of planning documents, performance of associated field work, and preparation of RCRA Closure Report for Building 27. Building 27 was the site of the former hazardous waste storage facility.
The objective of this project was to prepare a Resource Conservation and Recovery Act (RCRA) Closure Plan for Building 27 to enable the building to be demolished. The RCRA Closure Plan for Building 27 was prepared in accordance with California Code of Regulations Title 22, Division 4.5, Chapter 14. Building 27 was historically used as the MCLB Barstow Nebo Main Base 90-day hazardous waste accumulation facility. Records indicate that, at some time prior to the late 1950s, Building 27 contained a dynamometer, a machine used to test engine performance. No documentation was found to indicate specific wastes associated with the building. Suspected wastes that may be associated with the use of the dynamometer include petroleum oils and lubricant, gasoline, diesel fuels, antifreeze, and hydraulic fluids. The building was also used as a warehouse for preservation and packaging of materials that were to be shipped off base. Materials used in the building at that time were acids, caustics, paints, phenolic preservatives, detergents, oil, fuels, and materials associated with steam cleaning. A Sampling and Analysis Plan and Accident Prevention Plan were prepared for all field activities.
A base dig permit was obtained from MCLB Barstow and sampling locations were surveyed for underground or under slab utilities before activities were conducted. Prior to starting field activities, a large amount of bird droppings, dead birds, and other debris were required to be removed from inside the facility. The concrete slab at each boring location was cored using a 6-inch diameter core bit for hand auguring. RCRA characterization of the shallow soil below Building 27 and the Container Storage Area included hand auguring 18 soil borings to a total depth of 5 feet below ground surface and collecting two soil samples from each boring. Each sample was submitted to a certified laboratory for analysis. The secondary containment pit for the old dynamometer was partially filled with rainwater that was discolored yellow that required the water to be tested before it should be removed for disposal. In addition, recent rains had caused the accumulation of water in a secondary containment structure that was also sampled. One concrete core located near the dynamometer had different colored concrete, perhaps for heat resistance, that was also sampled for asbestos. A RCRA Closure Report was prepared and the site was closed by the Certified Unified Protection Agency (CUPA).