Observations API Services on labs.waterdata.usgs.gov will be retired. Users should migrate to services on api.waterdata.usgs.gov instead.
Category: Water Data for the Nation
In order to alert automated users of WaterServices, we will intentionally slow down requests and perform two scheduled outages before permanently decommissioning the services in February 2027.
The new Water Data APIs provide programmatic pathways to accessing all USGS Water Data for the Nation (WDFN), providing a consistent interface for accessing all data from the National Water Information System.
The Explore USGS Water Data feature designed for searching and filtering data by locations and data collection categories in WDFN.
A new STAC API provides access to rating curve files. This API will replace the ratings depot in winter 2026.
Details of NWISWeb Decommission Campaign 3 from November 2026 to February 2027
The Water Quality Portal (WQP) will soon be modernized to better serve users. This vital application will be supported for years to come.
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.
Manual readings for additional water data parameters will be available beginning July 1st, 2026.