Milwaukee Suburb Allowed Unprecedented Water Diversion from Lake Michigan

The city of Waukesha will be able to pump water from the Great Lakes to replace its contaminated local ground water supply. It's the first community outside the Great lakes watershed allowed to divert water under terms of the Great Lakes Compact.

2 minute read

June 21, 2016, 2:00 PM PDT

By James Brasuell @CasualBrasuell


great lakes

NASA Goddard Space Flight / Flickr

"A suburban Milwaukee city won a hard-fought battle Tuesday to draw its drinking water from Lake Michigan," reports the Chicago Tribune news service. The decision is "a key test of a regional compact designed to safeguard the Great Lakes region's abundant but vulnerable fresh water supply," according to the article.

Waukesha was the first city to make use of a provision in the 2008 Great Lakes Compact that allows communities just outside the Great lakes watershed to request diversions of water outside the watershed. Waukesha proposed the $207 million diversion project after discovering that "groundwater wells on which the city has long relied are contaminated with radium." Waukesha will now be allowed to pump 8.2 million gallons of water a day from Lake Michigan.

According to a separate article by Dan Kraker:

A panel of representatives from the eight Great Lakes states (plus two Canadian provinces) gave the plan tentative approval in May. But it required Waukesha to reduce the amount of water it would withdraw daily from 10.1 million gallons to 8.2 million gallons, and to shrink the size of the area it would provide with water to 57 percent of the original proposal.

The controversial proposal attracted plenty of opposition over the years, including when Planetizen first picked it up in January 2011. In September 2015, several local newspapers raised concerns about the end of the project's trail, when Waukesha will pumps treated wastewater back into Lake Michigan. As recently as May, the decision to cut the daily volume and delivery area of the project prompted a discussion about growth in the suburban area of Waukesha.

Tuesday, June 21, 2016 in Chicago Tribune

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

4 hours ago - Diana Ionescu

Aerial view of town of Wailuku in Maui, Hawaii with mountains in background against cloudy sunset sky.

Maui's Vacation Rental Debate Turns Ugly

Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

July 1, 2025 - Honolulu Civil Beat

Person wearing mask walking through temporary outdoor dining setup lined with bistro lights at dusk in New York City.

Restaurant Patios Were a Pandemic Win — Why Were They so Hard to Keep?

Social distancing requirements and changes in travel patterns prompted cities to pilot new uses for street and sidewalk space. Then it got complicated.

June 19, 2025 - Diana Ionescu

Aerial view of new neifhborhood under construction with enpty lots in foreground.

In California Battle of Housing vs. Environment, Housing Just Won

A new state law significantly limits the power of CEQA, an environmental review law that served as a powerful tool for blocking new development.

5 hours ago - CALmatters

Low-rise Pearl Sreet mall in Boulfer, Colorado.

Boulder Eliminates Parking Minimums Citywide

Officials estimate the cost of building a single underground parking space at up to $100,000.

6 hours ago - Boulder Reporting Lab

Two-story buildings with porches in walkable Florida neighborhood.

Orange County, Florida Adopts Largest US “Sprawl Repair” Code

The ‘Orange Code’ seeks to rectify decades of sprawl-inducing, car-oriented development.

7 hours ago - CNU Public Square