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Water Quality

The Milwaukee Water Works (MWW) is recognized as a national leader for providing safe, high-quality drinking water, and for our water quality monitoring program. We treat Lake Michigan water with ozone disinfection, biologically active filtration, and chloramine disinfection. Since 1993, the Milwaukee Water Works has invested $508 million in its infrastructure, to ensure a reliable supply of pure, safe drinking water.

Water quality is regulated by the U.S. Environmental Protection Agency (EPA), the Wisconsin Department of Natural Resources (DNR), and the Wisconsin Department of Health Services (DHS). 

Among many regulations followed by the Milwaukee Water Works, the Lead and Copper Rule (LCR) is a federal regulation that limits the concentration of lead and copper allowed in public drinking water at consumers' taps. It also limits the permissible amount of pipe corrosion occurring due to the water itself. Utilities must ensure that tap water samples do not exceed the action level of 15 micrograms per liter (ug/L) for lead or 1300 micrograms in at least 90 percent of the consumer taps sampled. The Milwaukee Water Works is required to sample 50 sites every three years.

Monitoring in 2017 found Milwaukee’s water in compliance with the LCR regulations, as were the previous results from 2014. Here is a chart showing results of sampling from the beginning of the LCR in 1993 through 2017. The sampling results have been below the action level since 1999 because of the effectiveness of our corrosion control program which was implemented in 1998.

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Protecting Public Health

A leading national example of partnerships between health departments and drinking water utilities and other public health stakeholders is the Milwaukee Inter-Agency Clean Water Advisory Council (IACWAC). The group was endorsed by Milwaukee Common Council legislation in 1994 and charged with the overall coordination of water quality issues in the community.

Water Quality Monitoring Program

The Milwaukee Water Works (MWW) is recognized as a national leader in providing safe, high-quality drinking water that meets or exceeds regulations, and for its water quality monitoring that goes above and beyond requirements. Crystal-clear Milwaukee water is available fresh and pure 24 hours each day.


See also: Lead Awareness and Drinking Water Safety, Fluoride in Drinking Water, Chromium-VI (CR-6).

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Resources

Cross-Connection Control

A cross-connection is any actual or potential physical connection between a drinking water system and a source or system of non-drinkable water or substances. As Milwaukee’s water utility, we are responsible for making sure the water delivered to your home is safe to drink and use. Please help us keep water safe in your home and our water system safe from potential contamination due to cross-connections.

DNR Source Water Assessment

Reported in 2003 by the Wisconsin Department of Natural Resources Bureau of Drinking Water and Groundwater. This is their most recently published DNR source water assessment.

Lead Awareness and Drinking Water Safety

Informaciόn sobre el plomo y la seguridad del agua potable

Milwaukee’s drinking water does not contain lead. But lead can dissolve from lead plumbing. Find health information here and search our records to see if a property has a lead service line.

Water Quality Assurances

Solutions and Progress for Safe Water Since the 1993 Cryptosporidium Crisis

Water Quality Basic Information for Hobbyists and Makers

Milwaukee water makes for awesome aquariums and sparkling homebrew. We offer the following water quality parameters for all who use tap water for brewing, to fill their aquariums, for photofinishing, coffee brewing and tea steeping, cooking and baking, and every activity that requires consistently pure, high-quality water.

Water Utility Collaboration with Public Health Officials

A leading national example of partnerships between health departments and drinking water utilities and other public health stakeholders is the Milwaukee Inter-Agency Clean Water Advisory Council (IACWAC). The group was endorsed by Milwaukee Common Council legislation in 1994 and charged with the overall coordination of water quality issues in the community.

Customer Service Center

Zeidler Municipal Building
841 N. Broadway, Room 406
Milwaukee, WI 53202
Monday - Friday 7:30 a.m. - 5:00 p.m.

Telephone  (414) 286-2830
24-Hour Control Center    (414) 286-3710
TDD   (414) 286-8801
Fax   (414) 286-5452
Email (non-emergency)  
News Media - Sandy Rusch Walton
  (414) 286-3261
U.S. Mail   P.O. Box 3268
 Milwaukee, WI 53201-3268