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The City of Port Washington, Ozaukee County, Wisconsin
Docket ID: 4780-CW-105
Application of the City of Port Washington, as a Water Public Utility, for Authority to Construct 4.2 Miles of 16-inch Water Main to Serve the Vantage Data Center Site, in the City of Port Washington, Knellsville (Unincorporated), and the Town of Port Washington, Ozaukee County, Wisconsin.
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Application Summary
Overview
The City of Port Washington (applicant) is seeking approval for the construction of an approximately 4.2-mile, 16-inch diameter water main (pipeline) expansion to serve the Vantage Data Center (Vantage) site.
Applicant Stated Need
The project is needed to provide a redundant point of water supply to Vantage’s private water system, with a daily demand of 22,000 gallons per day and target fire flow of 3,500 gallons per minute for a 3-hour duration to the point of connection.
Estimated Cost
The applicant stated that the estimated project cost is $11,400,000.
Project Location
The project would connect to existing water main in the City of Port Washington and the new water main would be installed heading north through Knellsville (unincorporated) and the Town of Port Washington, in Ozaukee County, Wisconsin.
Proposed Schedule
- The applicant submitted the application to the Commission in July 2026.
- If approved, the applicant anticipates construction for this project to begin on January 4, 2027 with an estimated completion date of October 29, 2027.
The proposed project is categorized as a
Type II action under
Wis. Admin. Code § PSC 4.10(2). The Commission will prepare an Environmental Assessment (EA) for this project that will evaluate the location of the project and its potential environmental, community, and private property impacts. There will be a preliminary determination when the EA is complete that will determine whether the preparation of an Environmental Impact Statement (EIS) is necessary.
Key Application Documents
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