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Material Disposal Area (MDA) L

Table B-11

Location: Technical Area (TA) -54

Period of use: Unknown to 1985 (1)

Size: 2.65 acres

Number and type of disposal units:
Pits (1): unknown size
Surface impoundments (3)1,2: unknown size
Shafts (34) (2): unknown size
Specific wastes and quantities:
Disposal capacity of 71,540 ft3 Used to dispose of chemical waste.  Now used for storage and treatment of RCRA hazardous waste and mixed wastes under interim status.
Potential environmental impacts:
Pajarito Canyon and Canada del Buey 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.


1.  According to Hazardous and Radioactive Materials Bureau, New Mexico Environment Department, Hydrogeologic Evaluation of Los Alamos National Laboratory (LANL), p. C-5, July 1996.  (Back to Text)

2.  According to U.S. Department of Energy, Albuquerque Operations Office, Site-Wide Environmental Impact Statement (SWEIS) for Continued Operation of the LANL, p. 2-108, January 1999.  (Back to Text)
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Site-Wide MDA Map
Descriptions of Individual MDAs
MDA Main Page

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

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