Sludge pond capped at Bunker Hill Superfund site
This aerial photo shows where work is being done to cap the former Bunker Hill sludge pond on top of the Central Impoundment Area. The old pond, pictured in the top left of the photo, was filled in 2023. The new three-bay sludge impoundment area, pictured top right, is where the waste materials from the nearby Central Treatment Plant are being stored.
Courtesy photo
KELLOGG — Work throughout the Bunker Hill Superfund Site has ramped up for the season, including the finalization of a project on top of the site’s central impoundment area.
The Bunker Hill CIA was built in 1928 as a repository for tailings, mine waste, gypsum and acid mine drainage, but was covered and capped more than two decades ago as part of the cleanup efforts within the Superfund site.
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