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We are releasing new, modernized Water Data APIs this year and are beginning the process to decommission legacy APIs. This blog discusses the decommissioning of the “gwlevels” and “SensorThings” APIs. The gwlevels API will be decommissioned beginning November 1st, 2025. The SensorThings service will be decommissioned on December 9th, 2025.
Where to find and download field measurements in Water Data for the Nation
Details of NWISweb Decommission Campaign 2 from November 2026 to February 2026
The USGS Real-Time Flood Impact (RT-FI) API service helps communities protect lives and property by providing flood risk context to widely-available USGS streamgage height measurements.
Modernization and decommission of statistics delivery for USGS Water Data for the Nation
Summary of NWISweb, WaterServices, and WaterWatch decommissions and modernization of APIs and UI for water data delivery in 2025
What to expect from modernized replacements to the WaterServices family of APIs.
This new feature is used to search and filter through data by locations and data collection categories in WDFN.
