City of Waukesha Clean Water Plant

Image: Waukesha Clean Water Plant. Logo: Waukesha 125th Anniversary

600 Sentry Dr., Waukesha, WI 53186
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Saturday & Sunday
10:00 a.m. and Noon


The City of Waukesha municipal wastewater treatment facility processes an average of 9-10 million gallons per day. Flow arrives at the plant through a network of 270 miles of underground pipe. There has been a continuously operating treatment plant at this site since the late 1890s with numerous upgrades taking place over the years. The City of Waukesha has some of the highest quality effluent (discharged waste) in the state.

Tour Information:

On a guided, 1-hour tour, visitors will see the primary, secondary, and tertiary treatment of the liquid waste. Additionally, guests will see the treatment of the solids removed from each of these steps, and the ultimate biosolids end-product which is land-applied to farm fields for valuable nutrient recycling. The facility is currently under construction for the next round of improvements, which include tertiary treatment upgrades to meet a lower phosphorus limit, and the return flow pumping of Lake Michigan water, so some areas of the facility may not be accessible.
**Pre-registration is required**


This location is kid-friendly, but they must be older than 10 years old.

Photography and Filming Permissions:

During this event, photography and filming are allowed.


Participants must be over 10 years of age, need long pants, closed-toe shoes, and have the ability to climb and descend stairs.

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Metro Bus Access:

Free Waukesha Metro Bus rides Saturday, October 9th and Sunday October 10th.
Route 5/6 Saturday Schedule | Route 5/6 Sunday Schedule

Logo: Waukesha Metro. Text: Metro Route 5/6