IOWA WATER QUALITY

INFORMATION SYSTEM

Welcome to the Iowa Water Quality Information System.
The IWQIS allows access to real-time water-quality data and information such as nitrate, pH, and dissolved oxygen concentrations, discharge rates, and temperature.

USGS Data

For USGS data, please use the USGS contact form.

IIHR Data

For IIHR data, please fill the following form: