Table B-4

Location:   Technical Area (TA) -33

Period of use:   1948 to 1952

Size:   1,200 m²

Number and type of disposal units:

Underground chambers (2):  used for testing explosives and conducting polonium- 210-bearing experiments.

Specific wastes and quantities:

Contains unknown quantities of HE, barium beryllium, polonium-210.

Potential environmental impacts:

Located about 800 feet above the bottom of Ancho Canyon and 1000 feet above the bottom of White Rock Canyon New Mexico Environment Department's (NMED) Hazardous and Radioactive Material Bureau (HRMB) ranks this MDA as an area with a high probability of contaminant mobilization and a low to moderate potential of release to the groundwater.

Map:

Figure B-6 has been removed due to illegibilty.

Sources:

1.  Rogers, Margaret Anne, History and Environmental Setting of Los Alamos Scientific Laboratory Near- Surface Land Disposal Facilities for Radioactive Wastes (Areas A, B, C, D, E, F, G, and T). June 1977.  (Back to Text)

2.  LANL, Environmental Restoration, Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) Workplan for Operable Unit 1122, LA-UR-92-925.  May 1992.  (Back to Text)