After widely criticized actions in 2022 and 2023 breaking the longstanding SSFL cleanup agreements, the California Department of Toxic Substances Control (DTSC) has now proposed a breathtaking further breach. It has put forward a plan to throw out the 2010 Administrative Orders on Consent (AOCs) and replace their requirement of cleanup of the site to background with a new approach, opaquely called “Multiple Lines of Evidence” (MLE). DTSC’s MLE proposal would allow contamination levels thousands of times higher than the AOCs permit, and would allow most of the contaminated soil to not be cleaned up. This is thus a pivotal moment in the cleanup; if DTSC’s plans are not abandoned, the health of large numbers of people living in the area will be at perpetual risk.