Sun Prairie Utilities (SPU) is providing the opportunity for customers to share public comments for its final draft of the Water Supply Service Area Plan.
The Wisconsin Department of Natural Resources (WI DNR) requires a Water Supply Service Area Plan for communities serving populations of 10,000 or more, and the City of Sun Prairie meets this definition with an estimated 2024 population of 39,419.
The purpose of this plan is to illustrate compliance with Section 281.348 of the Wisconsin Statutes and Chapter NR854 as follows:
- Identify Service Area.
- Take inventory of existing sources of water supply.
- Identify both existing and future populations within the service area.
- Estimate water demands forecasts.
- Identify options for the alternate water supply.
- Demonstrate the plan effectively utilizes existing infrastructure.
- Illustrate the plan supports and is consistent with comprehensive plans for the service area.
- Assess the environmental and economic impacts of implementing the proposed diversion.
The public can access the plan on SPU’s website by clicking here.
Per the WI DNR (NR854.08), SPU is sharing the plan with the public with an open comment period of November 1 to December 1, 2025. At the end of the comment period, SPU will share the plan and all public comments with the WI DNR.
If people have questions after they read the plan, they can contact Andrew Hirvela, SPU’s supervisory engineer, at ahirvela@myspu.org
To submit a public comment, please email SPU at communications@myspu.org by the end of December 1, 2025.