Bay Area/ San Francisco

EPA Unveils Cleanup Crescendo for Infamous Clearlake Oaks Mercury Mine

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Published on December 04, 2023
EPA Unveils Cleanup Crescendo for Infamous Clearlake Oaks Mercury MineSource: Environmental Protection Agency

The U.S. Environmental Protection Agency has undoubtedly rolled up its sleeves, declaring the grand finale of a cleanup crusade at the notorious Sulphur Bank Mercury Mine Superfund site, notorious for its malignant spread of mercury and arsenic not just within its own mine-strewn property but also into the neighboring nooks of Clearlake Oaks, California. In a move that promises to sweep away the toxic remnants of a bygone era, the days when the mine actively spewed its poison from the late 1800s to the 1950s, the EPA's restoration blueprint envisions a Clear Lake and surrounds free from the curse of contamination.

It's high time," said EPA Pacific Southwest Regional Administrator Martha Guzman, whose words bear the weight of the remedial aspirations. "This cleanup plan marks the culmination of years of planning with tribes, local government, and the state to develop a joint vision for reviving the local environment and economy around Clear Lake," she declared in a statement, according to the EPA's press release. The masterstroke of this operation? A meticulous blend of covering mine waste piles, wiping away or overlaying contaminated residential soils, and staunching the flow of mercury into the fish and sediments of Clear Lake while ensuring the minimal impact on the nearby tribes.

Echoing Guzman's enthusiasm, Meredith Williams, the Californian Department of Toxic Substances Control Director, conveyed her excitement for the project's progression. "We’re thrilled to see this project move into the next phase," Williams said, embracing the magnitude of the endeavor and the essential collaboration between the state, the EPA, and the Elem Indian Colony to safeguard the community.

In the run-up to cementing this final cleanup plan, the agency embraced a 90-day public commentary season that saw a melding of online Q&A sessions, in-person open houses, and hybrid public hearings aimed at both tribals and non-tribal citizens alike. It's here that the agency collected an assortment of written and verbal feedback before turning these considerations into the actions described in the Record of Decision—a publicly accessible document that lays bare the EPA's rationale behind the chosen strategies and more, all up for review on the agency's website.

The EPA has been far from idle in the trenches of environmental warfare, with eight preliminary cleanups launched at Sulphur Bank to cocoon community members and their natural environs. These operations have ranged from controlling the onslaught of soil erosion to amending surface water management, alongside the targeted removal of contaminated soil within the Elem Indian Colony and placing protective caps over mine waste under the umbrella of asphalted roads.