EPA’s New WOTUS Definition Further Threatens Montana’s Water

Last week, the Trump administration’s Environmental Protection Agency (EPA) published a proposal to revise the definition of “waters of the United States” (WOTUS), further undermining clean water protections and threatening water quality across Montana and the country.  The proposal, which…

Nearly a Thousand Montana Citizens Petition DEQ to Pause Pollution Permitting Until Plan is in Place

Montanans Mobilize to Protect Waters from Nutrient Pollution Today, Upper Missouri Waterkeeper, a coalition of conservation organizations, and 900 citizens and a dozen organizations submitted a petition to the Montana Department of Environmental Quality requesting the agency pause any new…

Proposed Great Falls Data Centers Dead For Now; Threats of Thirsty & Power-Hungry Data Centers Remain Across Montana

The proposed TAC Data Center development northeast of Great Falls, between Malmstrom Air Force Base and the Missouri River, by Ardent Tech, released its option to lease 569 acres of land as announced by the Great Falls Development Alliance Council…

Save Wild Trout’s Monitoring Program Continues to Fill Critical Data Gaps

Privately funded water quality monitoring provides science to inform trout recovery Following recent coverage in the Montana Standard on Montana Fish, Wildlife & Parks (FWP) and Montana State University’s (MSU) trout and river studies, Save Wild Trout is also wrapping…

MT Department of Natural Resources & Conservation Acknowledges Water Rights Failures

DNRC Letter Explaining Waterkeeper’s Horse Creek Hills Water Rights Victory Exposes Department’s Continued Approval of Exempt Wells Contrary to the Law Recent letters issued by the Montana Department of Natural Resources and Conservation (DNRC) to subdivision landowners across the state…

Conservation Groups Release Petition Urging DEQ to Halt Permitting Until Pollution Control Plan is in Place

Following EPA’s Approval of Montana’s Water Quality Rollback, Groups Act to Protect from Pollution Today, Upper Missouri Waterkeeper launched a new petition for Montanans to sign demanding the Montana Department of Environmental Quality (DEQ) pause any new or renewed pollution…

FAQs: Montana’s Rollback of Numeric Nutrient Water Quality Standards

1. What just happened? The 2025 Montana Legislature passed and Governor Gianforte signed HB 664, a piece of legislation that rolls back numeric nutrient water quality standards for all water pollution control and water restoration purposes across the State. 2….

5 Things to Know About Montana’s 2025 Repeal of Numeric Nutrient Water Protections

1. Science-based numeric nutrient standards are far more effective mechanisms for controlling pollution and measuring river health than narrative nutrient standards. Numeric criteria allow detecting and reducing pollution before harm occurs, and judging waterway health with a high degree of…