WATER Data Improvement Act

This bill updates the U.S. Geological Survey's (USGS) water monitoring programs under the Omnibus Public Land Management Act of 2009. It renames the "National Streamflow Information Program" to the "Federal Priority Streamgage Program," extends funding for groundwater monitoring through fiscal year 2028 (instead of 2023), and adds requirements for tribal consultation in groundwater monitoring. The bill also repeals a separate brackish groundwater assessment provision. These changes primarily affect the USGS and tribal governments by modifying how water data is collected, prioritized, and funded for monitoring purposes.