Mountain Valley Pipeline Boost: Eco Review by October
Published Date: 7/9/2025
Notice
Summary
Mountain Valley Pipeline wants to boost its Southgate Project’s gas capacity from 375,000 to 550,000 dekatherms per day, meaning more gas can flow through the pipeline. The government is preparing an environmental check and will share the results by October 3, 2025, with final decisions expected by January 1, 2026. This affects local communities, regulators, and energy users, and could speed up energy delivery while following environmental rules.
Analyzed Economic Effects
4 provisions identified: 1 benefits, 0 costs, 3 mixed.
Pipeline Capacity Increase to 550,000 Dth/d
Mountain Valley Pipeline proposes to raise the Southgate Project capacity from 375,000 dekatherms per day (Dth/d) to 550,000 Dth/d. The Amendment Project would also change pipeline diameter to 30 inches and alter the route between Pittsylvania County, Virginia and Rockingham County, North Carolina.
Environmental and Safety Concerns Will Be Addressed
Public commenters raised concerns about groundwater, waterbodies, wetlands, threatened and endangered species, forested areas, cumulative impacts, air emissions, and pipeline safety related to the increased diameter and capacity; FERC says all substantive environmental comments will be addressed in the EA. The U.S. Fish and Wildlife Service field offices are cooperating agencies for the EA.
Project Design Changes Affect Local Contractors
The Amendment Project would shorten the pipeline from 75.1 miles to 31.3 miles, remove the Lambert Compressor Station, remove four mainline valves and two cathodic protection groundbeds, and add two new contractor yards; construction of the originally authorized Southgate Project has not yet started.
Environmental Review Schedule and Deadlines
FERC staff will issue an Environmental Assessment (EA) on October 3, 2025, which will be open for a 30-day comment period, and other federal and state agencies must reach final decisions within 90 days after the EA, by January 1, 2026. If the schedule changes, FERC will provide additional notice.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-20238, RamaFlux Sierra PSH, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications
RamaFlux Sierra PSH, LLC wants to study building a big 750-megawatt pumped storage hydroelectric project near Nevada City, California. This notice means they got the green light to explore the idea but can’t start building yet. People have until November 30, 2026, to share their thoughts, join the process, or suggest other project ideas.
2026-20217, Combined Notice of Filings
The Federal Energy Regulatory Commission got several filings from natural gas companies about new rates and reports. These changes mostly affect pipeline customers and could change prices starting November 1, 2026. If you want to share your thoughts, you have until October 13, 2026, to comment.
2026-20216, Combined Notice of Filings #1
The Federal Energy Regulatory Commission got several new filings from energy companies like Shell Energy and West Camp Wind Farm asking for approval on big projects and changes. These filings affect companies involved in power generation and trading, with deadlines for public comments coming up in mid-October. Some filings also include refund reports, hinting at possible money adjustments for customers.
2026-20105, The City of Columbus, Ohio; Notice of Application for Surrender of Exemption Accepted for Filing, Soliciting Comments, Motions To Intervene, and Protests
The City of Columbus, Ohio, wants to give up its special exemption for the O'Shaughnessy Dam Hydroelectric Facility on the Scioto River. This change could affect local energy rules and requires approval from environmental agencies, with public comments due by October 28, 2026. If you care about local energy or the environment, now’s the time to speak up!
2026-20106, Combined Notice of Filings
The Federal Energy Regulatory Commission got a bunch of filings from natural gas pipeline companies about changing their rates and agreements. These changes mostly take effect starting November 1, 2026, and could affect how much customers pay or how companies handle fuel and losses. If you’re involved with these pipelines, keep an eye on comment deadlines in early to mid-October to have your say!
2026-19984, Florida Gas Transmission Company, LLC; Notice of Request Under Blanket Authorization and Establishing Intervention and Protest Deadline
Florida Gas Transmission Company wants to lower the pressure on a big gas pipeline in Calhoun and Liberty Counties, Florida, to keep things safe and run smoother. This change helps meet safety rules and improve operations without extra costs to customers. If you care, you can speak up by October 20, 2026, to join the conversation or raise concerns.
Previous / Next Documents
Previous: 2025-12758, Combined Notice of Filings
The Federal Energy Regulatory Commission got new filings about natural gas pipeline rates and rules that could change starting August 1, 2025. Companies like Caledonia Energy and Golden Pass Pipeline are updating their prices and operating plans, so folks involved should act by mid-July if they want to speak up. These changes might affect how much people pay or how pipelines operate soon.
Next: 2025-12761, Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest
The U.S. International Trade Commission got a complaint about certain synthetic braiding hair and its packaging. They want the public to share their thoughts on how this might affect everyone, especially businesses and shoppers. If you have opinions, now’s the time to speak up before any decisions are made!