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Basin Closures Updates

Remedy Selection Plan

At Ameren, we are implementing a proactive, comprehensive plan to safely and responsibly close our ash basins, the storage facilities holding the byproducts of generating electricity from coal. A federal rule passed in 2015 during the Obama Administration requires us to close these basins and address impacts to groundwater. This report (PDF) details those steps which will protect the environment, limit burdens to the communities Ameren serves and calls home, and fully complies with applicable state and federal requirements.
Energy Center Last ash basin closed
by the end of:
Labadie 2020 (PDF)
Rush Island 2020 (PDF)
Sioux 2021* (PDF)
Meramec 2023 (PDF)


* Gypsum basin closed in 2024

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