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"Forget the Rest" blog

Material Disposal Area (MDA) U (1)

Table B-19

Location:  Technical Area (TA) -21

Period of use:  1948 to 1968

Size:  0.2 acres

Number and type of disposal units:
Absorption Beds (2):  unlined
Specific wastes and quantities:
Estimated volume: 18,003 ft3 Includes unknown quantities of Polonium-210, and smaller quantities of tritium, uranium, beryllium, and PCBs
Potential environmental impacts:
DP Canyon, Los Alamos 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 moderate to high potential of release to the groundwater.
Other pertinent information:
"Liquid effluent used to run down into the canyon and pond in a swampy area." (2)

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, TA-21 Operable Unit Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) Workplan, LA-UR-91-962.  May 1991.  (Back to Text)

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2901 Summit Place NE Albuquerque, NM 87106, Phone: 505-265-1200

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