At a February 9, 2023 public community forum hosted by the Department of Energy’s Environmental Management Los Alamos Office, there were strong indications that the New Mexico Environment Department (NMED) is convinced that DOE’s plans to remediate the chromium groundwater contamination plume under Los Alamos National Laboratory (LANL) is not working. Kimberly Lebak, program manager for N3B, the LANL cleanup contractor, described how it is finalizing the 2023 milestones under the Consent Order that governs cleanup, despite the fact that the NMED Groundwater Bureau has requested that DOE stop injecting treated water by April 1, 2023. DOE and NMED are not seeing eye-to-eye concerning the “Interim Measure” that N3B is using to contain the chromium plume.
The two agencies disagree on the Interim Measure, originally designed to prevent chromium from migrating across the San Ildefonso Pueblo border while DOE tries to figure out a final remedy.