LRP - Licenses

LRP - Regulations

LRP - Permits

Recreation - Statewide

Recreation - Trapping

Recreation - Fishing

Recreation - Hunting

Env. Protection - Management

Env. Protection - Emergency

Env. Protection - Resources

To sign up for updates or to access your subscriber preferences, please enter your contact information below.

the DNR's EIS for the proposed City of Waukesha water diversion [PDF].
the DNR's Technical Review for the proposed City of Waukesha water diversion [PDF].
to the Great Lakes Council decision on the proposed City of Waukesha water diversion [PDF exit DNR].

Subscribe to receive updates about the Great Lakes Compact and Waukesha diversion.

Contact information
For information on the DNR's review of this project, contact:
Ben Callan

City of Waukesha water diversionPermits review

To implement the diversion of Lake Michigan water to the City of Waukesha (Waukesha), Waukesha must obtain all required federal, state and local permits and approvals. Waukesha has decided to obtain Lake Michigan water from the Milwaukee Water Utility. Waukesha's treated wastewater will be returned to Lake Michigan via the Root River.

Needed permits and approvals, include:

  • The Wisconsin Public Service Commission's Construction Authorization for construction required to implement the diversion
  • Wisconsin Pollutant Discharge Elimination System (WPDES) Permit for wastewater discharge to the Root River
  • Wastewater Facilities Plan approval
  • Permits for pipeline stream crossings, wetland crossings and Root River outfall
  • Water Supply Service Area plan approval
  • DNR public water systems construction plan approval
  • Wisconsin Diversion approval

Waukesha also plans to request grants from the DNR to implement the project. Prior to the issuance of any permits or grants, the DNR will issue an Environmental Impact Statement (EIS) and a Wisconsin Environmental Policy Act (WEPA) compliance determination.

Staff from the DNR and Public Service Commission of Wisconsin (PSC) have been meeting with the City to discuss needed information. The City has been working to develop this information.

The public will have an opportunity to comment on draft permits at a public informational meeting in 2019. After the EIS and WEPA compliance determination are issued, the DNR will issue permits.

Wetland and waterway permit application

The City of Waukesha submitted a wetland and waterway permit application to the department on June 28, 2019. The DNR determined the wetland and waterway permit application to be complete in December of 2018.

DNR Environmental Impact Statement (EIS)

The DNR analyzed all relevant environmental and socio-economic effects of the proposal and alternatives.

WPDES permit application

Information about the


Date Title
04/25/2019 FHWA Hardship Application Approval
04/08/2019 NEPA CE Analysis for FHWA Hardship Application Approval
02/11/2019 Approval of August 2018 Clean Water Plant Facility Plan Amendment
01/28/2019 EIS Information Needs Letter
01/28/2019 GWA Incompleteness Letter
12/28/2018 Wetland and Waterway Impact Permit Application documents
11/09/2018 Milwaukee Route Alternatives Descriptions
11/09/2018 Milwaukee Route Alternative Panels
11/01/2018 EIS Information Needs Response
10/22/2018 EIS Information Needs Response
09/21/2018 EIS Information Needs Response
08/30/2018 Waukesha Clean Water Plant Facility Plan Amendment
08/13/2018 WI SRF WIFRA Notification letter
06/07/2018 EIR route alternative panels
06/07/2018 EIR route alternative desriptions
03/23/2018 Waukesha supplemental environmental impact report
12/21/2017 Waukesha WPDES individual permit application
12/18/2017 RB-CC Letter re: Milwaukee water supply
11/30/2017 WDNR letter regarding Milwaukee water supply
11/29/2017 Waukesha letter to DNR re: water supplier
06/26/2017 DNR and PSC WEPA letter
02/27/2017 Pre-Return Flow Root River Data Collection Plan
07/13/2016 Waukesha return flow planning limits letter
Last revised: Tuesday December 03 2019