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

Current RTWQ Maps
Google Map of all USGS Real-Time Water Data

About USGS WaterQualityWatch

WaterQualityWatch ( ) is a new USGS web site that provides access to real time water-quality monitor 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, and turbidity. These measurements are available at more than 1,300 sites in streams with watersheds as small as a few square miles to more than 1,000,000 square miles in the Mississippi River as it enters the Gulf of Mexico. Continuous real-time water-quality data are used for decisions regarding drinking water, water treatment, regulatory programs, recreation, and public safety. Additionally, links to other USGS technical resources and how these measurements are used as surrogates to obtain real-time computations or estimates of other water quality constituents are provided.

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Page Last Modified: Mon 24 January 2011