Comprehensive Cleanup Needed Instead of More Nuclear Weapons

FOR IMMEDIATE RELEASE, November 14, 2025

Contact: Jay Coghlan, 505.989.7342, c. 505.470.3154 | Email

Contact: Scott Kovac, 505.316.4148 | Email

Santa Fe, NM – The New Mexico Environment Department has announced:

“A toxic chromium plume from Los Alamos National Laboratory has spread beyond Lab boundaries onto Pueblo de San Ildefonso land for the first time, with contamination exceeding state groundwater standards… These new results are conclusive evidence that the U.S. Department of Energy’s efforts to contain the chromium plume have been inadequate.”

In reality, chromium groundwater contamination probably migrated beyond the LANL/San Ildefonso Pueblo boundary long ago, with past Lab maps of the plume “magically’ stopping at the border. In the past, tribal leadership has commented that it was fortunate that the contamination stopped there, but that any future indications of groundwater contamination on Pueblo land could have serious consequences. The San Ildefonso Pueblo is a sovereign Native American tribal government.

As late as the late 1990s the Lab was falsely claiming that groundwater contamination was impossible because underlying volcanic tuff is “impermeable.” [1] This ignored the obvious fact that the Parajito Plateau is heavily seismically fractured, providing ready pathways for contaminant migration to deep groundwater. By 2005 even LANL acknowledged that continuing increasing contamination of the regional aquifer is inevitable.[2] Some 300,000 northern New Mexicans rely upon the aquifer for safe drinking water. The potential serious human health effects (including cancer) caused by chromium contamination was the subject of the popular movie Erin Brockovich.

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