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Mountain Valley Pipeline - Southgate Amendment
This page provides information on current activities related to Mountain Valley Pipeline's (MVP's) Southgate Amendment Project. The proposed project includes the construction of approximately 31.3 miles of 30-inch diameter pipeline; with 26.1 of those miles to be located in Pittsylvania County, Virginia. (The remaining 5.2 miles of pipeline would be located in Rockingham County, North Carolina.) The purpose of the pipeline is to transport natural gas from an interconnection point with the MVP Main Line project in Virginia to an interconnection point with the East Tennessee Natural Gas, LLC, system in North Carolina.
In Virginia, the construction of natural gas pipelines is regulated under several environmental programs.
- On January 13, 2026, DEQ issued VWP Individual Permit No. 25-0752 for MVP's Southgate Amendment Project:
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752 - App. A_reduced size
DEQ administers the Virginia Water Protection (VWP) permit program, which follows state regulations and federal guidelines under the Clean Water Act. State law requires that a VWP Permit be obtained before disturbing a wetland or stream by clearing, filling, excavating, draining, or ditching. Applications can be made through the Joint Permit Application (JPA) process.
In April 2025, DEQ received a JPA for MVP's Southgate Amendment Project. Attachment A of the JPA included a VWP Permit Application. DEQ is currently evaluating the VWP application (in accordance with VWP Permit Program Regulation 9VAC25-210-10 et seq).
- Use DEQ's Permitting Enhancement & Evaluation Platform (PEEP) tool to view the status and target timeframe for this permit application.
- Under 'Facility Name' select 'MVP Southgate Amendment Project' from the drop-down menu and click 'Apply.' The Request Number for this project is 25-0752.
- Use the 'Project Documents' tab to view documents related to the Southgate Amendment Project's VWP Permit Application.
- Email DEQ with questions or inquiries about the Southgate Amendment Project's VWP application at: mvpsouthgate.vwp@deq.virginia.gov
- Looking for the entire JPA? Click this link to view all JPA documents and attachments submitted for MVP’s Southgate Amendment project on the Virginia Marine Resources Commission’s website.
A Public Notice of the Draft VWP Permit was published on October 16, 2025.
- Click here to view the Public Notice on the Virginia Regulatory Town Hall website.
- To view the Draft VWP Permit, please scroll down to ‘Project Documents’ and click on the files below ‘DEQ’s Draft Virginia Water Protection (VWP) Individual Permit No. 25-0752,’ or click directly on the files below:
4. Attachments 1 and 2 - Construction Reporting Forms
5. Appendix A (Part 1) - Impact Maps - VA - Alignment
6. Appendix A (Part 2) - Impact Maps - VA - Access Roads
7. Appendix B - Time of Year Restrictions Table
25-0752_2025-10-15_PERM_Draft Permit Combined Sections
The Public Comment Period for the Draft VWP Permit is from October 16, 2025, through December 5, 2025. For more information on how to comment, please review the Public Notice for the draft permit here.
- All written public comments submitted to DEQ either electronically or by mail, within the Public Comment Period, and that are relevant to the tentative DEQ action, will be considered by DEQ and included as part of the record.
A Public Hearing for the Southgate Amendment project’s Draft VWP Permit was held on November 20, 2025 in Chatham, Virginia. DEQ staff presided over the hearing, and a court reporter was present to document comments provided by the public and other meeting attendees on the draft permit.
Summary of Public Comments and Responses Document
After the Public Comment Period ended, but before issuing a final decision on the draft VWP Individual Permit for MVP's Southgate Amendment Project, DEQ published a summary of public comments received during the public comment period and public hearing for the aforementioned draft permit, as well as DEQ’s responses to the summarized comments (9VAC25-210-172). Click on this file to view the summary and responses document: MVP-SG_Summ. of Comments_VWP Indv. Permit
Summary of Comments Public Hearing
DEQ held a Public Hearing on January 6, 2026, at the Olde Dominion Agricultural Complex Education and Conference Center, located at 19783 US Highway 29, in Chatham, Virginia (24531). The purpose of the hearing was to provide an opportunity for individuals who previously commented on the draft VWP Permit (either at a public hearing or in writing during the public comment period) to respond to the department’s public comment summary and responses. A Public Notice for this Summary of Comments Public Hearing was issued on December 23, 2025, and can be viewed on the Virginia Regulatory Town Hall website, or by clicking on this link: Virginia Regulatory Town Hall View Meeting.
Final VWP Permit
On January 13, 2026, DEQ issued VWP individual Permit No. 25-0752 for MVP's Southgate Amendment Project.
- To view the final VWP Permit, please scroll down to the end of 'Project Documents,' and click on the files below the 'DEQ's Final Virginia Water Protection (VWP) Individual Permit No. 25-0752' subheading, or click on the files below:
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752 - App. A_reduced size
Federal Energy Regulatory Commission (FERC)
In June 2020, the Federal Energy Regulatory Commission (FERC) issued a Certificate of Public Convenience and Necessity, authorizing MVP to construct and operate the Southgate Project. In February 2025, MVP submitted an abbreviated application to FERC, requesting the agency issue an order amending the certificate to allow MVP to construct and operate a modified version of the project, known as the Southgate Amendment Project.
In May 2025, FERC issued a Notice of Scoping Period Requesting Comments on Environmental Issues for the Proposed Mountain Valley Pipeline Southgate Amendment Project and Notice of Scoping Session. DEQ submitted comments to FERC in June 2025. Following the scoping period, FERC developed an Environmental Assessment (EA) for the project. In December 2025, FERC issued an order amending the certification of public convenience and necessity for MVP's Southgate project.
U.S Army Corps of Engineers (USACE)
In April 2025, MVP submitted a Joint Permit Application (JPA), which included a request for a Department of the Army (DA) permit for the Southgate Amendment Project, under the provisions of Section 404 of the Clean Water Act. (The JPA can be accessed on the Virginia Marine Resources Commission's website using this link. Once the webpage is up, scroll down and click on the 'Additional Docs' button to view the JPA documents.) In response, the U.S. Army Corps of Engineers (USACE) issued a Public Notice of the JPA submittal and solicited comments from the public and other interested entities.
Other State Entities
Through the aforementioned JPA, MVP also applied to the Virginia Marine Resources Commission (VRMC) and the North Carolina Department of Environmental Quality (NCDEQ) for additional permits related to the Southgate Amendment Project. In November 2025, NCDEQ issued a Clean Water Act Section 401 Water Quality Certification for the project.
VWP Application
- MVP's VWP Permit Application (received by DEQ on 4/18/2025):
MVP-SG_JPA - 401 WQC Info and VWP Appl_1
MVP-SG_JPA - 401 WQC Info and VWP Appl_2
Looking for the entire Joint Permit Application (JPA)? Click this link to view all JPA documents and attachments submitted for MVP’s Southgate Amendment project on the Virginia Marine Resource Commission’s website.
DEQ Correspondences
- DEQ's additional information request letter to MVP (issued by DEQ on 5/1/2025):
MVP-SG_2025-05-01_Addtl. info. request
- MVP's response to DEQ's additional information request (received by DEQ on 5/30/2025):
MVP-SG_2025-05-30_MVP info. request response_letter
MVP-SG_2025-05-30_MVP info. request response_spreadsheet
- DEQ's Reasonable Period of Time request & USACE's response (6/3/2025):
- DEQ's comment letter #2 to MVP (issued by DEQ on 6/12/2025):
MVP-SG_2025-06-12_Addtl. info. request
- DEQ's approval of MVP's Standards & Specifications (issued by DEQ on 6/30/2025):
MVP-SG_2025-06-30_DEQ approval - MVP Standards & Specifications
- DEQ's addendum to comment letter #2 to MVP (issued by DEQ on 7/15/2025):
MVP-SG_2025-07-15_DEQ Comment Letter 02
- MVP's responses to DEQ's comment letter #2 (received by DEQ on 7/16/2025; supplemented on 7/25/2025 and 7/30/2025):
MVP-SG_2025-07-16_MVP Response Letter_A
MVP-SG_2025-07-16_MVP Response Letter_B
MVP-SG_2025-07-16_MVP Response Letter_C
MVP-SG_2025-07-16_MVP Response Letter_Table A-1.Virginia Stream Impacts
MVP-SG_2025-07-16_MVP Response Letter_Table A-2.Virginia Wetland Impacts
MVP-SG_2025-07-16_MVP Response Letter_Table A-3.Virginia Stream Impacts Summary
MVP-SG_2025-07-16_MVP Response Letter_Table A-4.Virginia Wetland Impacts Summary
MVP-SG_2025-07-16_MVP Response Letter_Table 2.Stream Impacts
MVP-SG_2025-07-16_MVP Response Letter_Table 3.Wetland Impacts
MVP-SG_2025-07-16_MVP Response Letter_Table 4.Stream Impacts Summary
MVP-SG_2025-07-16_MVP Response Letter_Table 5.Wetland Impacts Summary
MVP-SG_2025-07-16_MVP Response Letter_Table 15.Wetland Mitigation
MVP-SG_2025-07-25_MVP Response Letter_Photo Log
MVP-SG_2025-07-30_MVP Response_Supplemental Email
MVP-SG_2025-07-30_MVP Response_Updated Alternatives Table
MVP-SG_2025-07-30_MVP Response_Revised Detail Maps.1-68
MVP-SG_2025-07-30_MVP Response_Revised Detail Maps.69-137
- DEQ's comment letter #3 to MVP (issued by DEQ on 8/1/2025):
MVP-SG_2025-08-01_DEQ Comment Letter 03
- MVP's conceptual Permittee-Responsible Mitigation Plan (received by DEQ on 7/23/2025 and 8/8/2025):
MVP-SG_2025-07-23_MVP conceptual PRM Plan - Update Letter
1_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Submittal Letter
2_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Snow Creek Mitigation Plan
3_MVP-SG_2025-08-08_MVP conceptual RMP Plan_Appendix A - Figures
4_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Appendix B - Concept Design and Site Selection
5_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Appendix C- CE Template
6_MVP-SG_2025-08-08_ MVP conceptual RMP Plan_Appendix D - Wetlands and Species
7_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Appendix E - Invasive Species
8_MVP-SG_2025-08-08_MVP conceptual PRM Plan_Appendix F - Long-Term Mgmt. Plan
- MVP's Virginia Wetlands & Other Aquatic Resources Maps (received by DEQ on 8/8/2025):
MVP-SG_2025-08-08_VA Wetlands and Other Aquatic Resources Maps 1-77
MVP-SG_2025-08-08_VA Wetlands and Other Aquatic Resources Maps 78-156
- U.S. Army Corps of Engineers' Preliminary Jurisdictional Determination (PJD) for the Project Site (received by DEQ on 8/15/2025):
1_MVP-SG_2025-08-15_USACE - Project Site PJD Letter
2_MVP-SG_2025-08-15_USACE - Project Site PJD Background Info
3_MVP-SG_2025-08-15_USACE - Project Site PJD Appeal Form
- U.S. Army Corps of Engineers' Preliminary Jurisdictional Determination (PJD) for the Permittee-Responsible Mitigation (PRM) Site (received by DEQ on 8/15/2025):
1_MVP-SG_2025-08-15_USACE - PRM PJD Letter
2_MVP-SG_2025-08-15_USACE - PRM PJD Map
3_MVP-SG_2025-08-15_USACE - PRM PJD Background Info
4_MVP-SG_2025-08-15_USACE - PRM PJD Appeal Form
- DEQ's Permittee Responsible Mitigation (PRM) comment letter #1 (issued by DEQ on 8/20/2025):
MVP-SG_2025-08-20_DEQ - PRM Comment Letter 01
- MVP's response to DEQ's addendum to comment letter #2 (received by DEQ on 8/22/2025):
MVP-SG_2025-08-22_MVP Response - Comment Ltr. 2 Addendum
- MVP's Response to DEQ's Permittee Responsible Mitigation (PRM) comment letter #1 (received by DEQ on 9/4/2025):
MVP-SG_2025-09-04_MVP Response - PRM Comment Letter 01
MVP-SG_2025-09-04_MVP Response - Table A-2. Virginia Wetland Impacts
MVP-SG_2025-09-04_MVP Response -Table A-4. Virginia Wetland Impacts Summary
MVP-SG_2025-09-04_MVP Response - Table 3. Wetland Impacts
MVP-SG_2025-09-04_MVP Response - Table 5. Wetland Impacts Summary
- DEQ’s Application Completeness Determination and Technical Questions (issued by DEQ on 9/22/2025):
MVP-SG_2025-09-22_DEQ - Complete Application Det. and PRM Technical Comments
- MVP's response to DEQ's PRM Technical Comments and revised PRM Plan (received by DEQ on 10/2/2025, 10/3/2025, and 10/9/2025):
MVP-SG_2025-10-02_MVP response - Revised PRM Letter
MVP-SG_2025-10-03_MVP response - Revised PRM Plan_ attach. 1 - redlined
MVP-SG_2025-10-03_MVP response - Revised PRM Plan_attach. 2 - clean
MVP-SG_2025-10-09_MVP response - PRM comment letter
Comments Submitted to DEQ by State Agencies
- Virginia Dept. of Health's Office of Drinking Water (received by DEQ on 5/12/2025):
MVP-SG_2025-05-12_VDH-ODW comments
- Virginia Dept. of Conservation & Recreation (received by DEQ on 6/3/2025 and 9/25/2025):
MVP-SG_2025-06-03_DCR comments
MVP-SG_2025-09-25_DCR comments - Snow Creek PRM
- Virginia Marine Resources Commission (received by DEQ on 6/9/2025):
MVP-SG_2025-06-09_VMRC comments
- Virginia Dept. of Wildlife Resources (received by DEQ on 9/5/2025 and 9/26/2025):
MVP-SG_2025-09-05_DWR comments - emails
MVP-SG_2025-09-05_DWR comments - TOYR Table
MVP-SG_2025-09-26_DWR comments - Snow Creek PRM
DEQ's Draft Virginia Water Protection (VWP) Individual Permit No. 25-0752
4. Attachments 1 and 2 - Construction Reporting Forms
5. Appendix A (Part 1) - Impact Maps - VA - Alignment
6. Appendix A (Part 2) - Impact Maps - VA - Access Roads
7. Appendix B - Time of Year Restrictions Table
25-0752_2025-10-15_PERM_Draft Permit Combined Sections
DEQ's Summary of Public Comments and DEQ Responses (issued by DEQ on 12/23/2025)
MVP-SG_DEQ_Summ. of Comments_VWP Indv. Permit
DEQ's Final Virginia Water Protection (VWP) Individual Permit No. 25-0752 (issued by DEQ on 1/13/2026)
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752
MVP-SG_2026-01-13_Final VWP Individual Permit No. 25-0752 - App. A_reduced size
- DEQ's Mitigation Plan Comment Letter (issued by DEQ on 1/14/2026):
MVP-SG_2026-01-14_DEQ - Mitigation Plan Comment Letter
- MVP's Comprehensive Stream and Wetland Monitoring, Restoration, & Mitigation Framework (received by DEQ on 1/26/2026):
MVP-SG_2026-01-26_MVP - Monitoring.Restoration.Mitigation Framework
- MVP's Snow Creek Mitigation Plan package (received by DEQ on 2/9/2026):
MVP-SG_2026-02-09_MVP - Final Mitigation Plan Pkg - Snow Creek
- DEQ's Final Mitigation Plan Comment Letter (2/26/2026):
MVP-SG_2026-02-26_DEQ - Final Mitigation Plan Comment Letter
- MVP's response to DEQ's Comment Letter and revised Mitigation Plan (received by DEQ on 3/5/2026):
MVP-SG_2026-03-05_MVP - Response to DEQ Comment Letter
MVP-SG_2026-03-05_MVP - Snow Creek Mitigation Plan - Redline
MVP-SG_2026-03-05_MVP - Snow Creek Mitigation Plan - Clean
- DEQ's Mitigation Framework Comment Letter (issued by DEQ on 3/6/2026):
MVP-SG_2026-03-06_DEQ - Mitigation Framework Comment Letter
- MVP's response to DEQ's Comment Letter and revised Mitigation Framework (received by DEQ on 3/11/2026):
MVP-SG_2026-03-11_MVP - Email transmittal - Revised Mitigation Framework
MVP-SG_2026-03-11_MVP - Response to DEQ comments - Mitigation Framework
MVP-SG_2026-03-11_MVP - Mitigation Framework - Redlines
MVP-SG_2026-03-11_MVP - Mitigation Framework - Revised
- DEQ's concurrence with the revised Mitigation Framework (issued by DEQ on 3/12/2026):
MVP-SG_2026-03-12_DEQ - Email concurrence with Mitigation Framework
- DEQ's edits for the Snow Creek Mitigation Plan (issued by DEQ on 3/10/2026)
MVP-SG_2026-03-10_DEQ - Edits for Snow Creek Mitigation Plan
- MVP's Snow Creek Mitigation Plan submittals (received by DEQ on 3/12/2026):
MVP-SG_2026-03-12_MVP - Email transmittal - Revised Snow Creek Mitigation Plan
MVP-SG_2026-03-12_MVP - Snow Creek Mitigation Plan_V6.Clean
MVP-SG_2026-03-12_MVP - Snow Creek Mitigation Plan_V6.Redline
MVP-SG_2026-03-12_MVP - Snow Creek Mitigation Plan_V7.Final
- DEQ's concurrence with the revised Snow Creek Mitigation Plan (issued by DEQ on 3/12/2026):
MVP-SG_2026-03-12_DEQ - Email concurrence with Snow Creek Mitigation Plan
Preconstruction Documentation - Streams & Wetlands
- Preconstruction Documentation - Streams
- Preconstruction Documentation - Wetlands
MVP-SG_2026-03-13_MVP - Preconstruction Notification transmittal
MVP-SG_2026-03-13_MVP - Preconstruction Notification letter
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