Iowa DNR

Water Quality Assessments

Impaired Waters List

ADBNet Documentation

Data Sources

To assess waterbody health in Iowa, data from many different sources is compiled and processed. This data is often available to the public as well.

  • BioNet is the portal for sampling data and summary information collected using the protocols of the Stream Biological Monitoring and Assessment Program.
  • AQuIA contains the results of water monitoring conducted by the Iowa DNR's Water Quality Monitoring and Assessment section or one of its designees.
  • The Iowa DNR Fish Kill Database contains records of fish kill events in the state.

The State of Iowa also provides several Geographic Information System (GIS) services:

Data for surrounding states and the rest of the nation is available through the US Environmental Protection Agency (EPA):

  • ATTAINS -The Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System (ATTAINS) is an online system for accessing information about the conditions in the Nation’s surface waters.
  • Water Quality Portal -The Water Quality Portal (WQP) is a cooperative service sponsored by the United States Geological Survey (USGS), the EPA, and the National Water Quality Monitoring Council (NWQMC). It serves data collected by over 400 state, federal, tribal, and local agencies.

This page was created 9/5/2019 9:29:47 AM and was last updated 4/10/2024 10:33:50 AM