MountainWest Overthrust Pipeline, LLC; Notice of Schedule for the Preparation of an Environmental Assessment for the Green River West Expansion Project

Issuing agencies

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<title>Federal Register, Volume 91 Issue 207 (Wednesday, October 28, 2026)</title>
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[Federal Register Volume 91, Number 207 (Wednesday, October 28, 2026)]
[Notices]
[Pages 67831-67832]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-21986]


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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. CP26-550-000]


MountainWest Overthrust Pipeline, LLC; Notice of Schedule for the 
Preparation of an Environmental Assessment for the Green River West 
Expansion Project

    On July 1, 2026, MountainWest Overthrust Pipeline, LLC (Overthrust)

[[Page 67832]]

filed an application in Docket No. CP26-550-000 requesting a 
Certificate of Public Convenience and Necessity pursuant to Section 
7(c) of the Natural Gas Act to construct and operate certain natural 
gas pipeline facilities. The proposed project is known as the Green 
River West Expansion Project (Project), and it would allow the delivery 
of up to 64,000 dekatherms per day of firm natural gas transportation 
service from receipt points near Opal, Wyoming, to the new WE Soda 
delivery meter station in Sweetwater County, Wyoming.
    On July 15, 2026, the Federal Energy Regulatory Commission 
(Commission or FERC) issued its Notice of Application for the Project. 
Among other things, that notice alerted agencies issuing federal 
authorizations of the requirement to complete all necessary reviews and 
to reach a final decision on a request for a federal authorization 
within 90 days of the date of issuance of the Commission staff's 
environmental document for the Project.
    This notice identifies Commission staff's intention to prepare an 
environmental assessment (EA) for the Project and the planned schedule 
for the completion of the environmental review.\1\
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    \1\ For tracking purposes under the National Environmental 
Policy Act, the unique identification number for documents relating 
to this environmental review is EAXX-019-20-000-1789542496.
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Schedule for Environmental Review

Issuance of EA February 5, 2027
90-day Federal Authorization Decision Deadline \2\ May 6, 2027
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    \2\ The Commission's deadline applies to the decisions of other 
federal agencies, and state agencies acting under federally 
delegated authority, that are responsible for federal 
authorizations, permits, and other approvals necessary for proposed 
projects under the Natural Gas Act. Per 18 CFR 157.22(a), the 
Commission's deadline for other agency's decisions applies unless a 
schedule is otherwise established by federal law.

    If a schedule change becomes necessary, additional notice will be 
provided so that the relevant agencies are kept informed of the 
Project's progress.

Project Description

    Overthrust proposes to construct, own, operate, and maintain the 
following facilities in Sweetwater County, Wyoming: two new 12-inch-
diameter delivery taps on Overthrust's existing ML116 and ML133 
mainline pipelines; a 6.78-mile-long, 12-inch-diameter tap line 
(JTL150), extending north from the new taps to WE Soda's Westvaco Trona 
Processing Plant; and a new meter and regulator station (JTL150 Meter 
Station) at the existing Westvaco Plant site. The Project would also 
involve construction of new permanent access roads, use of existing 
access roads, and use of temporary workspaces during construction.

Background

    On September 1, 2026, the Commission issued a Notice of Scoping 
Period Requesting Comments on Environmental Issues for the Proposed 
Green River West Expansion Project (Notice of Scoping). The Notice of 
Scoping was sent to federal, state, and local government 
representatives and agencies; elected officials; Native American 
Tribes; environmental and public interest groups; other interested 
parties; and local libraries and media outlets. In response to the 
Notice of Scoping, the Commission received comments from the Wyoming 
Department of Environmental Quality, Water Quality Division and the 
U.S. Bureau of Land Management, Kemmerer Field Office. The primary 
issues raised to date are the identification of surface waters of the 
state in proximity to the Project, their designated uses, and 
compliance with Wyoming water quality permitting requirements; and 
effects on wildlife and special status species, vegetation and soils, 
cultural, paleontological, and land resources on BLM-administered 
public lands. A letter of support for the project was also filed by the 
Sweetwater County Board of County Commissioners. All substantive 
comments will be addressed in the EA.
    The U.S. Bureau of Land Management, Kemmerer Field Office is a 
cooperating agency in the preparation of the EA.

Additional Information

    In order to receive notification of the issuance of the EA and to 
keep track of formal issuances and submittals in specific dockets, the 
Commission offers a free service called eSubscription. This service 
provides automatic notification of filings made to subscribed dockets, 
document summaries, and direct links to the documents. Go to <a href="https://www.ferc.gov/ferc-online/overview">https://www.ferc.gov/ferc-online/overview</a> to register for eSubscription.
    For public inquiries and assistance with making filings such as 
interventions, comments, or requests for rehearing, contact the Office 
of Public Participation at (202) 502-6595 or <a href="/cdn-cgi/l/email-protection#3a756a6a7a5c5f4859145d554c"><span class="__cf_email__" data-cfemail="6d223d3d2d0b081f0e430a021b">[email&#160;protected]</span></a>.
    Additional information about the Project is available from the FERC 
website (<a href="http://www.ferc.gov">www.ferc.gov</a>). Using the ``eLibrary'' link, select ``General 
Search'' from the eLibrary menu, enter the selected date range and 
``Docket Number'' excluding the last three digits (i.e., CP26-550), and 
follow the instructions. For assistance with access to eLibrary, the 
helpline can be reached at (866) 208-3676, TTY (202) 502-8659, or at 
<a href="/cdn-cgi/l/email-protection#276162756468494b4e494274525757485553674142554409404851"><span class="__cf_email__" data-cfemail="c98f8c9b8a86a7a5a0a7ac9abcb9b9a6bbbd89afacbbaae7aea6bf">[email&#160;protected]</span></a>. The eLibrary link on the FERC website also 
provides access to the texts of formal documents issued by the 
Commission, such as orders, notices, and rule makings.

(Authority: 18 CFR 2.1)

    Dated: October 23, 2026.
Debbie-Anne A. Reese,
Secretary.
[FR Doc. 2026-21986 Filed 10-27-26; 8:45 am]
BILLING CODE 6717-01-P


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