This July 22, 2024, image provided by Michael Ketterer shows jars of water samples from Acid Canyon in Los Alamos, N.M. (Michael Ketterer via AP)
This July 21, 2024, image provided by Michael Ketterer shows vegetation from Acid Canyon and lower Los Alamos Canyon near Los Alamos, N.M., after being milled as part of a sampling project. (Michael Ketterer via AP)