The U.S. Department of Energy (DOE) Environmental Management Los Alamos Field Office issued a Floodplain Statement of Findings for Stormwater Controls in Effluent, Mortandad, North Ancho, and Potrillo Canyons.
Office of NEPA Policy and Compliance
June 24, 2026
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Floodplain Statement of Findings for Stormwater Controls in Effluent, Mortandad, North Ancho, and Potrillo Canyons; Los Alamos County, New Mexico
The DOE Environmental Management Los Alamos Field Office has issued a Floodplain Statement of Findings for Stormwater Controls in Effluent, Mortandad, North Ancho, and Potrillo Canyons within Los Alamos National Laboratory (LANL) near Los Alamos, New Mexico.
These controls may include rock check dams, rock plunge pools, coir logs, erosion control blankets, straw wattles, compost logs and/or log check dams. They are designed to slow stormwater runoff and capture sediment from areas previously identified to have potential contamination from historical industrial activities at LANL.
For more information, see Floodplain Assessment for Storm Water Controls in Effluent, Mortandad, North Ancho, and Potrillo Canyons.