District Court Remands Lawsuit Involving Contaminated Water Supply Despite Federal Involvement in Cleanup

November 30, 2023
Brandon P. Matsnev, Esq.
MGKF Litigation Blog

In City of St. Charles v. Union Electric Company, the City of St. Charles (the “City”) brought common law claims sounding in negligence against Defendant Union Electric Company dba Ameren Missouri (“Ameren”), alleging that Ameren contaminated the City’s water supply, causing the City to incur millions in cleanup costs. No. 4:23-cv-00846-MTS (E.D. Mo. 2023). Ameren removed the case to federal court because it had been subject to an administrative settlement with EPA to perform the cleanup pursuant to CERCLA, but on November 2, 2023, the U.S. District Court for the Eastern District of Missouri remanded the case back to state court for want of subject matter jurisdiction.

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