LANL's 2025 environmental report puts top public radiation dose at 0.65 millirem
The report also notes four state hazardous-waste violations, with no penalties, and four outfall samples over permit limits.
LOS ALAMOS - A hypothetical person at the most exposed spot off Los Alamos National Laboratory property, on DP Road near the east end of its business section, would have received 0.65 millirem from lab operations in 2025, according to the lab's 2025 Annual Site Environmental Report.
That compares with a federal limit of 10 millirem a year from airborne releases and 100 millirem from all site activities, the report says. Radioactive emissions from all lab sources were under 10 percent of the regulatory limit.
The lab discharged about 89 million gallons from outfalls, and four of 777 outfall samples exceeded a permit limit. It made 12 reports of unplanned liquid releases to the New Mexico Environment Department. After hazardous-waste inspections in October and December 2025, the department issued a notice of violation on March 25, 2026, citing four violations with no penalties.
Chromium contamination beneath Sandia and Mortandad canyons and RDX contamination near Technical Area 16 still warrant action in the regional aquifer, the report says. It also records Los Alamos snowfall 28.9 inches below average, the third lowest on record.