Data for new parameter codes (released after June 2026) will only be available through Water Data for the Nation services. Data currently available through legacy NWISWeb applications will not be affected.
Tag: Decommission
A new STAC API provides access to rating curve files. This API will replace the ratings depot in winter 2026.
Water Data for the Nation (WDFN) is being modernized to simplify our data delivery and enable all data collection categories to be found from the same pages and tools. This post will orient you to where to find water data in the modernized WDFN.
Details of NWISWeb Decommission Campaign 2 from November 2025 to February 2026
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.
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
Details of NWISWeb Decommission Campaign 1 from October 2024 to February 2025
Summary of the NWISWeb webpage decommissions ongoing from October 2024 through February 2027
The GDP web interface, processing service, and THREDDS data server are being retired.