We are committed to providing data and information to the public.
Our data are collected following rigorous quality control standards.
The USGS has a non-regulatory mission.
The USGS Washington Water Science Center currently operates over 380 data-collection sites in Washington. The sites collect surface water, groundwater, water quality and meteorological data that are available in real time. Current and historic data can be retrieved from the National Water Information System (NWIS) database and the National Water Dashboard.