Indiana Real-time Water Quality

Real-time computed concentrations of water-quality constituents such as suspended sediment, total nitrogen, and total phosphorus are calculated using ordinary least squares regression models. The results of these models, along with direct water-quality measurements, can be viewed here as time-series graphs, or downloaded as tabular data.

Ordinary least squares regression models on this site use conventional sensor measurements (for example, discharge, temperature, pH, specific conductance, turbidity, and dissolved oxygen) to compute concentrations and loads of other water-quality constituents in real time. This makes it possible to compute instantaneous values of many constituents in real time for public safety without the lengthy time delay of collecting a sample and waiting for analysis of a sample at a laboratory.

Please select a site from below to start viewing data. You also can read more about the methods, measured constituents, and disclaimers by using the navigation bar at the top of each page.

Map Legend

	Continuous Water-Quality Gage
	Discontinued Continuous Water-Quality Gage

Station Name	Station Identifier	County	Computation Period
Eagle Creek at Zionsville, IN	03353200	Boone	Jan. 2014 to present
Kankakee River at Davis, IN	05515500	Starke	Jan. 2016 to present
Kankakee River at Shelby, IN	05518000	Newton	Jan 2016 to Present
School Branch at CR750N at Brownsburg, IN	03353420	Hendricks	Jan 2015 to Present
White River at Hazleton, IN	03374100	Gibson	Jan. 2014 to present
Yellow River at Knox, IN	05517000	Starke	Jan. 2014 to present
Yellow River near Brems, IN	05517010	Starke	Jan. 2014 to present
Yellow River near Oak Grove, IN	05516665	Starke	Jan. 2014 to present