Consumer Confidence Reports

What we do to ensure your water is safe

Green Bay Water Utility tests samples taken from the distribution system for lead, copper, other metals, disinfectant levels, turbidity and other corrosion indicators per requirements in the Safe Drinking Water Act. We receive a letter from the Wisconsin DNR each year on our sampling requirements for the upcoming year, and we schedule them accordingly.

Green Bay Water Utility also performs additional water quality monitoring on contaminants that are not regulated or do not have health effect advisories associated with them to ensure water quality.

Lead in Drinking Water

In 2011, Green Bay Water Utility found lead levels in some homes to be above the U.S. Environmental Protection Agency’s (EPA) action limit of 15 parts per billion (ppb), or 0.015 milligrams of lead per liter of water (mg/L). This was the first time Green Bay Water Utility exceeded the action level for lead since the EPA established testing requirements in 1992. 

After conducting a corrosion study, Green Bay Water Utility discovered that the high lead levels were due to particulate matter, and worked with the DNR to create an action plan to reduce lead levels that continues to be implemented. The action plan consisted of a four-fold approach to address the issue of lead in our water system, including: Water Studies, Unidirectional Flushing Program, Removal of Lead Services and Community Education. For more information on these efforts, see Operation: Get the Lead Out. 

When optimizing for corrosion control, water utilities do not conduct tests for lead and copper. Therefore, Green Bay Water Utility did not test for lead and copper from 2013 to 2015, which means no test results are listed in our Consumer Confidence Reports for those years. 

As of spring 2016, Green Bay Water Utility is back in compliance with the EPA’s Lead and Copper Rule, with current lead testing below 15 ppb. 

Testing Results

Green Bay Water Utility regularly updates customers on its water quality. A Consumer Confidence Report is prepared annually and sent to all customers. Water quality test data for Green Bay Water Utility can also be found on the Wisconsin DNR website under public water system ID 40503562.

Additional Water Quality Testing Information