Skip to main content
U.S. flag

An official website of the United States government

WaterQualityWatch -- Continuous Real-Time Water Quality of Surface Water in the United States

WaterQualityWatch (http://waterwatch.usgs.gov/wqwatch/) is a USGS web site that provides access to real time water-quality data collected in surface waters throughout the United States as part of the USGS mission to describe water resources. Measurements include streamflow (through WaterWatch) water temperature, specific conductance, pH, dissolved oxygen, turbidity, and nitrate.