Advocates say cleanup of coal ash at Northwest Indiana power plant leaves regional water supply at risk

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As a century-old power plant on the shores of Lake Michigan shuts down, some residents and activists are warning the region’s water supply could be at risk.

Over the next few years, Northern Indiana Public Service Company, or NIPSCO, is retiring the 130-acre Michigan City Generating Station, which has been burning coal for electricity for nearly a century.

It’s also cleaning up decades of coal ash byproduct. But advocates say the coal ash NIPSCO plans to leave on the site puts groundwater and Lake Michigan in danger of contamination in Michigan City and beyond.