***The IOWATER Database is temporarily unavailable as we transition to our new data system***
We hope to have the system back up and running shortly. We apologize for any inconvenience this may cause.
- Register Site Click here to register a new IOWATER site.
- Submit Data Click here to submit chemical, physical or biological data to the IOWATER database.
- View Data Click here to view IOWATER data. The database is searchable by site, county, water body or by volunteer.
Get UTMs Click here to determine the monitoring location for your site.
Water Monitoring Atlas
Water Monitoring Atlas is a searchable map that allows users to view and download data for IOWATER and professional water monitoring sites. The atlas allows the user to view other environmental data such as wastewater treatment facilities, impaired waters, and watershed boundaries.
Find and download the DNR's professional monitoring data for rivers, streams, lakes, wetlands in the STORET database. You can search by waterbody, site, date, and pollutant.