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Ohio Sues EPA Over Expanded Water Protections

  //house-home.news-articles.net/content/2026/03/1 .. io-sues-epa-over-expanded-water-protections.html
  Published in House and Home on Thursday, March 12th 2026 at 9:28 GMT by The Messenger
      Locales: California, UNITED STATES

COLUMBUS, Ohio - March 12th, 2026 - Ohio Governor Mike DeWine is spearheading a multi-state legal challenge against the Environmental Protection Agency's (EPA) recently finalized rule redefining "Waters of the United States" (WOTUS). Governor DeWine's opposition, initially voiced upon the rule's proposal in 2024, has intensified following its official enactment, prompting a formal lawsuit filed in the U.S. District Court for the Southern District of Ohio and a fervent call for intervention from Ohio's congressional delegation.

The core of the dispute centers on the EPA's broadened definition of navigable waters, which now includes a significantly wider range of wetlands, tributaries, and even isolated ponds. The EPA maintains this expansion is crucial for protecting the nation's water resources and ensuring clean water for all Americans. However, DeWine and other critics argue the new rule represents a dramatic overreach of federal authority, creating a regulatory quagmire for landowners, farmers, and developers throughout Ohio and beyond.

"This isn't about being anti-environment," DeWine stated in a press conference earlier today. "Ohio is deeply committed to protecting our natural resources. But this rule goes far beyond reasonable environmental protection. It infringes on the rights of our citizens, creates unnecessary bureaucratic hurdles, and threatens the economic viability of agriculture and development across our state."

Ohio's agricultural sector is particularly concerned. The expanded WOTUS definition potentially subjects previously exempt farm lands - including fields with naturally occurring ephemeral streams or small ponds used for irrigation - to federal permitting requirements for activities like ditching, drainage, and pesticide application. This could dramatically increase operational costs and delay crucial farming practices. The Ohio Farm Bureau Federation has publicly lauded DeWine's efforts, stating the rule as written would "cripple the state's agricultural economy." They cite estimates suggesting compliance costs could reach tens of millions of dollars annually for Ohio farmers alone.

Beyond agriculture, the rule's implications for development are equally significant. Any project impacting a designated "water of the U.S." - even temporarily - would require a Section 404 permit from the Army Corps of Engineers, a process known for its lengthy delays and complex regulations. This could stifle residential construction, infrastructure projects, and economic growth across the state.

The lawsuit filed by Ohio and a coalition of other states argues the EPA exceeded its authority under the Clean Water Act. They contend the Act intended to regulate traditionally navigable waters, not every isolated wetland or ephemeral stream. The legal challenge specifically focuses on the EPA's interpretation of "significant nexus," the connection required between a wetland and a traditionally navigable water to establish federal jurisdiction. The states argue the EPA's interpretation is overly broad and lacks a clear, scientifically sound basis.

This is not the first time a WOTUS rule has faced legal challenges. The rule has been subject to multiple iterations and court battles over the past decade, highlighting the ongoing tension between federal environmental regulation and state sovereignty. The Trump administration attempted to roll back the Obama-era WOTUS rule, but that effort also faced legal challenges. The Biden administration then reintroduced a revised rule, which is now the subject of this latest legal fight.

Legal experts predict a protracted legal battle, potentially stretching for years. The Southern District of Ohio court's ruling will likely have far-reaching implications, not only for Ohio but for the entire nation. A stay of the rule's implementation is being requested pending the outcome of the lawsuit, which would provide temporary relief to landowners and businesses. Governor DeWine has also emphasized the importance of congressional action, urging Ohio's representatives to explore legislative solutions to clarify the scope of federal authority over waters of the United States.

"We're not backing down," DeWine affirmed. "We will fight this rule every step of the way to protect the interests of Ohio's citizens and ensure a fair and predictable regulatory environment." The outcome of this legal and political battle will undoubtedly shape the future of water regulation in Ohio and across the country.