WaDE and WestDAAT remain publicly accessible in a static, read-only format. The most recent WaDE data updates were completed in March 2026, and WSWC does not currently plan to update, revise, or actively curate the data going forward. Users should treat WaDE/WestDAAT as a historical multi-state data resource and consult each state agency’s official data systems for the most current and authoritative information.

WaDE and WestDAAT were developed over more than 15 years with support from WSWC member states and funding partners to improve access to western water rights, water supply, and water use data. When WaDE began, many western states did not yet have robust public-facing water data tools. Today, most states provide their own portals, viewers, and data systems, which include the state-specific context and caveats needed for accurate use.

WSWC is maintaining public access to WaDE/WestDAAT for the near term through the continued support of funding partners that have partnered with us for many years to improve public access to western water data. During this period, users are encouraged to rely first on official state data portals and to use WaDE/WestDAAT as a supplemental historical and regional reference.

Will WaDE/WestDAAT still be available after April 2026?

WaDE and WestDAAT remain publicly accessible for the near term in a static, read-only format. WSWC is not currently updating or actively maintaining the underlying data.

When were the data last updated?

The most recent WaDE data updates were completed in March 2026. Users should consult official state agency systems for the most current information.

Where should I go for current water data?

We recommend using each state’s official water data portal first. WSWC’s State Data Portals page provides links to state agency resources.

Who is the authoritative source for these data?

State agencies remain the authoritative source for state-administered water rights, water supply, water use, and related water management data.