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Ohio EPA Rejects Streamlined Permitting for Data Center Wastewater

The Ohio EPA has decided against a proposed plan to create a standardized, streamlined wastewater permitting framework for data centers. Future projects will continue to undergo individual, site-specific permit reviews.

7/22/2026Source: Wastewater Digest

The Ohio Environmental Protection Agency recently dropped a proposal that would have allowed data centers to operate under a standardized wastewater permitting framework. The decision followed significant pushback from environmental groups, including the Alliance for the Great Lakes, who raised concerns about the potential impact of varying cooling system discharges on local water bodies.

Currently, most data centers in Ohio discharge their wastewater into municipal treatment systems rather than directly into surface waters. Only one facility in the state holds an NPDES permit for direct discharge, highlighting the rarity of the practice.

By maintaining the current individual permit review process, the Ohio EPA ensures that each facility's discharge characteristics are evaluated based on site-specific conditions. This approach prioritizes environmental protection over administrative simplification for the rapidly expanding data center industry.

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