New location for Pre-hearing - Notice of Request for a Permit and Hearing Filing Information Before the Wyoming Industrial Siting Council Docket Number DEQ/ISC 20-02 Gateway South Transmission Project

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Wyoming Department of Environmental Quality

Notice of Request for a Permit

Pursuant to provisions of the Wyoming Industrial Development Information and Siting Act and rules and regulations, notice is hereby given that Rocky Mountain Power (Applicant) has filed an application for a Section 109 Permit to construct and operate the Gateway South Transmission Project (Project). The Project will be comprised of an extra-high-voltage alternating current 500-kilovolt (kV) transmission line that will originate at the existing Aeolus Substation northwest of Medicine Bow, Wyoming, and will continue southwest through Colorado, and terminate at the Clover Substation in central Utah. In Wyoming, the Project is located in Carbon County and Sweetwater County and its infrastructure will include a minor expansion at the existing Aeolus Substation in Carbon County; construction of a new regeneration station east of Wamsutter; and approximately 142 miles of new transmission line. Approximately 108 miles of the transmission line will be in Carbon County and 34 miles will be in Sweetwater County. The anticipated construction period for the Gateway South Project is from June 2021 to October 2023.  The public may review a copy of the permit application at the Carbon County Public Library located at 215 W. Buffalo St., Rawlins, WY 82301; the Sweetwater County Library located at 300 N1st East, Green River, WY 82935; or at the webpage of the Wyoming Department of Environmental Quality, http://deq.wyoming.gov/isd/application-permits/resources/gateway-south-transmission-project/.

Notice of Hearing

Pursuant to W.S. § 16-3-107, notice is hereby given that the Wyoming Industrial Siting Council will conduct a contested case hearing on the application for a permit for the Gateway South Transmission Project at 8:30am on October 21-22, 2020 at the Jeffrey Memorial Community Center, 315 W. Pine Street, Rawlins, WY 82301. The Council will consider the applicant’s request for a permit pursuant to the provisions of the Industrial Development Information and Siting Act (W.S. § 35-12-101 et. Seq.) and the rules and regulations adopted thereunder. Persons eligible pursuant to W.S. § 35-12-111 and wishing to participate must notify the Industrial Siting Council in writing by September 11, 2020 and participate in a pre-hearing meeting at 1:30pm on October 9, 2020 at The Historic Depot, 400 W. Front Street, Rawlins, WY 82301. Persons desiring to make a limited appearance statement only may submit a written statement as provided by W.S. 35-12-111(c). Limited appearance statements must be given to the presiding officer at the hearing.

In accordance with the Americans with Disabilities Act, special assistance or alternative formats will be available upon request.

Dated this 10th day of September, 2020

Industrial Siting Division, Department of Environmental Quality

200 W. 17th St, 4th Floor

Cheyenne, WY 82002

Telephone: (307) 777-7244

Email: colin.mckee1@wyo.gov

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