Water samples from three reservoirs near the federal government's underground nuclear waste dump in southeastern New Mexico show no signs of contamination after a radiation leak at the plant.
Waste Isolation Pilot Plant officials said Saturday that independent researchers found the samples had no trace amounts of radioactive particles.
The Carlsbad Environmental Monitoring and Research Center says the areas that had traces have returned to previous levels before the Feb. 14 radiation leak.
Officials say the results confirm what the plant's own monitoring program found.
The research center is associated with New Mexico State University.
Technicians there collected samples March 20 and March 28 from Brantley Lake, Lake Carlsbad and Red Bluff Lake.
The samples include shallow and deep water and sediment.
They say the sediment samples are still being processed.
Explore further: Radiation leak detected at New Mexico nuclear plant