USGS Water-Quality Information
Autonomous underwater vehicle provides high-resolution observations of water quality and much more. Photo (c) Peter Berrini, HDR, Inc., used by permission.
National & Regional Science:
Local Science Features:
Water Quality Data
National Water Information System (NWIS)
NWIS provides current and historical water-quality data.
Today's Water Conditions
Water-Quality Watch provides continuous real-time water-quality measurements.
Water-Quality Web Services
Web services automate the sharing of USGS and USEPA water-quality monitoring data.
For More Data
Additional water-quality data resources are available.
USGS in Your Area
USGS Water Science Centers are located in each state.
Past "Noteworthy" Listings