• EPA finalizes a rule extending the compliance deadline for coal-fired power plants to reduce their wastewater pollution.
  • President Trump vetoes a bipartisan water infrastructure project in Colorado.
  • A water rights settlement for the Yavapai-Apache Nation is introduced again in Congress.
  • USGS investigates wastewater chemicals in Grand Canyon springs.
  • A cloudburst in Wisconsin this summer set a state precipitation record.

14.55 Inches: New 24-hour rainfall record for Wisconsin, recently certified by a committee that included NOAA’s National Centers for Environmental Information. The cloudburst happened in August and exceeded the state’s previous record by nearly three inches.

In context: The Next Deluge May Go Differently

Tribal Water Rights Settlement
A bill introduced in the House would approve a water rights settlement with the Yavapai-Apache Nation.

In addition to water rights, the bill guarantees a minimum flow in the Verde River, which crosses the nation’s lands in northern Arizona. The bill also provides funding for a 60-mile water supply pipeline and a water treatment plant.

This will be a second attempt at approving the settlement. Congress failed to pass a similar bill in its previous session.

Power Plant Wastewater Cleanup Extension
The EPA finalized a rule that extends the deadline for coal-fired power plants to install equipment to remove toxic metals in their wastewater.

The agency offered two justifications for the delay: rising electricity demand and supply chain snags. In the agency’s view, this means not placing additional costs on coal plants.

Most deadlines will be extended by five years, to December 31, 2034.

The rule goes into effect on March 2.

High Court Does Not Take California Water Case
The U.S. Supreme Court, in mid-December, declined to hear a California water case, SJV Water reports.

The case centered on water allocation decisions made by the Bureau of Reclamation during California’s 2014-15 drought years. A group of Central Valley farmers claimed that they were not compensated for water that was not delivered.

Wastewater Contaminants in Grand Canyon Springs
Water sampling in 2021 found PFAS in several springs along the South Rim of the Grand Canyon, and in one spring, pharmaceutical compounds like antihistamines. The U.S. Geological Survey investigated whether the South Rim’s wastewater treatment plant could be a source.

The answer is a qualified ‘Yes.’ The area’s geology and hydrology – influenced by faults and various rock types – is complex. And springs have different flow patterns. Still, some chemical tracers were conclusive.

“The initial results suggest there is a connection between [the South Rim Wastewater Treatment Plant] and Monument Spring, but the potential flow paths and the extent of the connection to other South Rim springs are still unknown,” the report states.

The chemical concentrations were found generally to be low. But more research is needed to better understand the effects of long-term, low-level exposure for the canyon’s ecology.

WOTUS Public Comment Period Ending
Today is the last final to submit public comments on the EPA’s proposal to narrow the definition of wetlands and streams that are protected under the Clean Water Act.

The agency’s actions are in response to the U.S. Supreme Court’s 2023 Sackett decision that took a restrictive view of federal regulatory authority over wetlands.

Submit comments via www.regulations.gov using docket number EPA–HQ–OW–2025–0322.

House Forests and Water Hearing
On January 8, a House Natural Resources subcommittee will hold a hearing on how the nation’s forests contribute to reliable water and power.

Planning for Natural Hazards
On January 22, the EPA will host a webinar for water utilities to discuss tools for incorporating natural hazard risks into resilience assessments.

Federal Water Tap is a weekly digest spotting trends in U.S. government water policy. To get more water news, follow Circle of Blue on Twitter and sign up for our newsletter.

Brett writes about agriculture, energy, infrastructure, and the politics and economics of water in the United States. He also writes the Federal Water Tap, Circle of Blue’s weekly digest of U.S. government water news. He is the winner of two Society of Environmental Journalists reporting awards, one of the top honors in American environmental journalism: first place for explanatory reporting for a series on septic system pollution in the United States(2016) and third place for beat reporting in a small market (2014). He received the Sierra Club's Distinguished Service Award in 2018. Brett lives in Seattle, where he hikes the mountains and bakes pies. Contact Brett Walton