Radium Levels in Well 7

Important Information about your Drinking Water

Levels of Radium, (226 + 228) in Oconto Waterworks water exceed standard

The samples listed below indicate the presence of Radium, (226 + 228) in excess of the 5 PCl/l Maximum Contaminant level (MCl) in your drinking water and are a violation of State and Federal Safe Drinking Water Regulations.

A water sample collected in September, 2018 indicated the presence of Radium, (226 + 228) above the MCL. Further sampling between December 2018 and January 2019 confirmed the high levels of Radium, (226 + 228).

What precautions should be taken at this time? You do not need to use an alternative (e.g., bottled) water supply. However, if you have specific health concerns, consult your doctor.

What does this mean? This is not an immediate risk. If it had been, you would have been notified immediately. Some people who drink water containing radium 226 or 228 in excess of the MCl over many years may have an increased risk of getting cancer.


What is being done to correct the problem?  Well 7 has been take off-line until the problem is

Corrected. The Oconto Utility Commission has two other wells located in the City of Oconto which

Will supply safe drinking water to all residents.


We are working to resolve this problem as soon as possible. We will notify you when the      

         Problem is resolved.


If you have questions regarding the safety of our drinking water, please contact:


Jeremy Wusterbarth (Superintendent of Public Works & Utilities) 920-834-7725

           1210 Main St – Oconto, WI 54153


I certify that the information and statements contained in this public notice are true and correct and have been provided to consumers in accordance with the delivery, content, format, and deadline requirements in Subchapter VII of ch. NR 809, Wis. Adm. Code.


Jeremy Wusterbarth – 3/18/19