Welcome to the Iowa Water Quality Information System. IWQIS allows access to real-time water quality data and information, such as nitrate, pH, and dissolved oxygen concentrations, discharge rates, and temperature.
About IWQIS
IWQIS integrates data gathered by IIHR—Hydroscience and Engineering (IIHR) and U.S. Geological Survey (USGS) and offers access to real-time nutrient data on a range of water-related information, such as precipitation, stream flow, and soil moisture. Our goal is to help researchers, agencies, and landowners directly monitor the impact of land-use strategies/changes on downstream water quality; enable watershed stakeholders to understand the fate and transport of nutrients in Iowa’s waterways; and help the state monitor the success of the Iowa Nutrient Reduction Strategy.