Notice from the Public Service Commission to Town of Jackson residents regarding new gas main installation in the Town.

Telephone: (608) 266-5481 Fax: (608) 266-3957 Home Page: https://psc.wi.gov E-mail: pscrecs@wisconsin.gov Public Service Commission of Wisconsin Summer Strand, Chairperson 4822 Madison Yards Way Kristy Nieto, Commissioner P.O. Box 7854 Marcus Hawkins, Commissioner Madison, WI 53707-7854 January 30, 2025 Re: Application of Wisconsin Gas LLC, d/b/a We Energies, as a Gas Public Utility, for Authority to Install Natural Gas Transmission Facilities in the Towns of Hartford, Polk, Jackson, Rubicon, Hustisford, and the Village of Slinger, in Washington and Dodge Counties, Wisconsin 6650-CG-275 To the Person Addressed, The Public Service Commission of Wisconsin (Commission or PSC) received an application from Wisconsin Gas LLC, doing business as We Energies for authority to construct a new 12-mile steel natural gas pipeline and associated infrastructure in the towns of Hartford, Polk, Jackson, Rubicon, and Hustisford and the village of Slinger, in Washington and Dodge Counties, Wisconsin. The proposed project would construct approximately 12 miles of 12-inch steel 850 pounds per square inch gauge (psig) maximum allowable operating pressure (MAOP) natural gas transmission main. A component of this proposed project also includes a pressure increase of an existing high-pressure system from 400 psig MAOP to 850 psig MAOP, which requires upgrades to existing regulation and valving infrastructure. The proposed project is called the “Hartford Jackson Interconnect Project” and would form a continuous 850 psig system from Rubicon Gate to Hartford East Gate Station to Port Washington Generating Station. The Commission is sending this letter to property owners near the proposed project, as well as individuals who have asked to be placed on our mailing list or have expressed interest in the project. This letter is also being sent to public officials in the project area. If you are a municipal clerk and receive this letter, please post it in a location where it can be viewed by the public. Commission and Wisconsin Department of Natural Resources (WDNR) staff are now analyzing the application and conducting a review of the environmental impacts of the proposed project. As part of this effort, the agencies are requesting comments from the public to help the state agencies determine the potential impacts associated with the project and the scope of the environmental assessment (EA). The agencies encourage persons with local information or environmental concerns to provide comments. Comments on the scope of the EA can be submitted: 1. By letter addressed to the environmental assessment coordinator for the docket (see contacts at the end of this letter); or 2. Through the Commission’s website at https://psc.wi.gov where you can click “file a public comment” on the lower left-hand side of the page, then locate docket 6650-CG-275. Docket 6650-CG-275 Page 2 of 5 The deadline for submitting environmental review scoping comments is Friday February 21, 2025. Please note that comments will be made available to the public via the Commission’s Electronic Records Filing System. Personal identifying information is not edited or deleted from submissions. There will be an additional public comment period following the preliminary determination of the EA. Comments for the EA scoping are most effective when they discuss: •Any potential human and environmental impacts of the proposed project; or •Any specific actions or changes to the proposed project that might minimize or mitigate the potential impacts of the project. Project Description Wisconsin Gas LLC is proposing construction of a new 12-mile, 12-inch steel natural gas pipeline and associated facilities in the towns of Hartford, Polk, Jackson, Rubicon, and Hustisford and the village of Slinger in Washington and Dodge Counties, Wisconsin. There are two proposed routes for this project: Route A and Route B. Route A would require approximately 57,809 feet of easement, 133 acres of right-of-way, and would cost approximately $40,620,187. Route B would require about 31,665 feet of easement, 107 acres of right-of-way, and would cost approximately $42,158,539. The majority of the land used for the project is agricultural. A map depicting the two routes can be found in the attachment. Associated infrastructure includes installation of five valve assemblies, including one new valve assembly location; improvements to two existing gate stations (Rubicon Gate and Hartford East Gate), including an expanded footprint at Hartford East Gate; improvements to existing district regulator stations; and improvements to Goodland Road Valve Assembly. Wisconsin Gas LLC states that the purpose of this proposed project is to provide additional natural gas deliverability and reliability to the northern suburbs/lakeshore of Milwaukee, Wisconsin. If approved, the start of construction is planned to begin in spring 2026, with anticipated completion by fall 2027. Docket 6650-CG-275 Page 3 of 5 State and Federal Agency Jurisdiction The proposed project requires a Certificate of Authority (CA) from the Commission before construction can begin. Based on the record of analysis of potential environmental and societal impacts, the Commission will decide whether to approve, modify, or deny the applicant’s proposal. DNR will consider the application for wetland and waterway permits, if applicable under Wis. Stat. ch. 30, potential impacts to rare species, and other affected resources under its jurisdiction. Other reviews, approvals, or permits may be necessary from local, state, or federal entities. Environmental Assessment This a Type II action under Wis. Admin. Code § PSC 4.10(2). The Commission will prepare an EA for this project jointly with DNR 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 to determine whether the preparation of an EIS is necessary under Wis. Stats. § 1.11. Comments on this preliminary determination will be accepted and considered before a final determination is made. At the time of the preliminary determination, the Commission shall make copies of the EA available to those persons that request it. Additional opportunities for public participation include the opportunity to comment on the preliminary determination on the need to prepare an EIS for the project. Notification for the preliminary determination will be sent to the mailing list for this project and you can be added to this mailing list by contacting the PSC Environmental Review Coordinator for this project listed below under project contacts. For more information on becoming involved in the Commission review of construction cases, please visit our public participation page or contact one of the project contacts listed below. Docket 6650-CG-275 Page 4 of 5 Information and Contacts To review project application materials and additional related documents •PSC website ( https://psc.wi.gov) under the docket’s “E-Services” tab, docket search number 6650-CG-275. •Also on the PSC website, type “Hartford Jackson Interconnect Project” in the search field to navigate to the project-specific webpage. •An interactive web-map of the project is available via the project-specific webpage. Contacts •PSC Docket Coordinator Rachel Guagliardo (608) 267-1475 Rachel.Guagliardo@wisconsin.gov P.O. Box 7854, Madison, WI 53707-7854 •PSC Environmental Review Coordinator Emily Thompson (608) 261-9408 emily.thompson2@wisconsin.gov P.O. Box 7854, Madison, WI 53707-7854 •DNR Contact Macaulay Haller (608) 347-0240 macaulay.haller@wisconsin.gov •PSC Media Contact Meghan Sovey (608) 267-3871 meghan.sovey1@wisconsin.gov Sincerely, Emily Thompson Environmental Analysis and Review Specialist – Adv. Division of Digital Access, Consumer, and Environmental Affairs ET:bs DL: 02051132 Attachment: Project Map Docket 6650-CG-275 Page 5 of 5