Water Quality

Meeting Water Quality Standards

The Dubuque Water Department provides high quality water that is in compliance with all standards set forth by the Environmental Protection Agency. Over two hundred tests a day are performed by water treatment plant operators.

In addition to these tests, the Dubuque Water & Resource Recovery Laboratory performs over 120 bacteriological analyses of our drinking water on a monthly basis. Other compliance related testing is performed by the University of Iowa Hygienic Laboratory and Keystone Laboratories. All of these analytical measures ensure that the water reaching your home is safe to drink.

City of Dubuque Water Quality Report - 2019

City of Dubuque Source Water Assessment 2016
List of Compounds found in Dubuque Water 

Barrington Lakes Water Quality Report - Click to open PDF

Barrington Lakes 2016-17 Water Quality Report

Vernon Township Water Quality Report - Click to open PDF

Vernon 2016-17 Water Quality Report

Click to open PDF

2019 Confidence Report

Water Treatment

Learn more about the actual treatment process responsible for Dubuque's clean drinking water.
Water Treatment