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Chloramines

Why the Change? 

The Hannibal Board of Public Works has been in violation of federal drinking water standards since 2012, and has been sending public notices to customers quarterly since the violation began.  The violation is related to disinfection byproducts (DBPs). 

In 2011, the HBPW hired a consultant to put together a list of options for us to choose that would meet the new federal standards.  Of these options, the HBPW Board approved the use of Chloramines as the new water disinfection procedure, and construction began at the Water Treatment Plant in early 2015. 

Letters were sent to our larger industrial users prior to the conversion, and mail inserts were sent to all HBPW water users. 

On April 4, 2017, the citizens of Hannibal voted to remove the use of ammonia as part of the city’s disinfection system by a vote of 1,259 to 894.  The proposition called for the Hannibal Code of Ordinances to be amended to include the ordinance prohibiting the use of ammonia in the public drinking water system within 90 days of approval by City Council. 

The Hannibal Board of Public Works is working hard to comply with the ordinance.  As such, there are two seperate aspects that the Hannibal Board of Public Works must navigate through in order to achieve compliance.  Click on the follow links to learn more about each segment of the process and what the HBPW has been doing to reach it's goals. 

TECHNICAL:  Removing Ammonia from the Drinking Water

LEGAL:  Maintaining Compliance with State and Federal Law