Public Notice
Mississippi Environmental Quality Permit Board
P. O. Box 2261 | Jackson, MS 39225
515 East Amite St. | Jackson, MS 39201
Telephone No. (601) 961-5171

Public Notice Start Date: July 15, 2026	MDEQ Contact: Clinton Gentry

Monroe Gas Storage Company, LLC (“MGS”), located at 60103 Phillips School House Road, in Amory, MS, (662) 256-7047, has applied to the Mississippi Department of Environmental Quality (MDEQ) for the following permitting action: Issuance of an Air Title V Operating Permit (TVOP), Ref. No. 1840-00083. An Information Relative to the TVOP has been prepared that contains a discussion of the decision-making that went into the development of the permit and provides the permitting authority, the public, and other government bodies a record of the technical issues surrounding issuance of the permit. The Information Relative to the TVOP also addresses the changes to emissions resulting from the modification of the facility.  
MGS (owned by Williams Companies) is a natural gas storage facility where natural gas is injected into a depleted gas reservoir for storage during periods of lower demand. Withdrawal primarily occurs during peak demand, including the winter heating months and summer cooling peaks. The applicant's operations fall within SIC Code 4922 - Natural Gas Transmission. Emission sources at the site currently include three natural gas compressor engines, one natural gas emergency generator, one natural gas glycol regenerator reboiler, one glycol dehydration unit, storage tanks, maintenance emissions from blowdowns, and process piping and equipment leaks. The Magnolia Gas Storage facility is currently a synthetic minor operating source.
With this permitting action, MGS is proposing to install two additional natural gas compressor engines. Because this modification will result in potential emissions increases below the de minimis NSR modification thresholds specified in 11 Miss. Admin. Code Pt. 2, R. 2.1.C(5)., a permit to construct the new compressor engines is not required. However, the modification will result in an increase to potential facility-wide emissions of nitrogen oxides which will exceed the major Title V source threshold of 100 tons per year. Therefore, MGS is requesting issuance of a TVOP. The proposed TVOP addresses federal requirements applicable to the compressors. The TVOP also limits emissions of nitrogen oxides and requires control of carbon monoxide and hazardous air pollutants (HAP) via oxidation catalyst to ensure the facility is not a major source under the Prevention of Significant Deterioration regulations and is not a major source of HAP. 
The staff of the Permit Board has developed this draft permit based on information submitted to the Permit Board by the applicant, appropriate State and Federal agencies and other interested parties. The staff of the Permit Board is soliciting all relative information pertaining to the proposed activity, including public comment, to ensure the draft permit complies with all State and Federal regulations. Public review and comment on the draft permit and supporting documentation is an important element in the staff evaluation and its consideration of key aspects of the permit action. The draft permit conditions have been developed to ensure compliance with all State and Federal regulations but are subject to change based on information received as a result of public participation.
Persons wishing to comment upon or object to the proposed determinations are invited to submit comments in writing to Clinton Gentry at https://www.mdeq.ms.gov/gentry-clinton/ or to the Permit Board address shown above, no later than the end of the thirty (30) day public notice. All comments received by this date will be considered in the formulation of final determinations regarding the application(s).  A public hearing will be held if the Permit Board finds a significant degree of public interest in the proposed permit(s). Persons wishing to request a public hearing may do so by submitting that request in writing to Clinton Gentry at https://www.mdeq.ms.gov/gentry-clinton/ or to the Permit Board address shown above. The Permit Board is limited in the scope of its analysis to environmental impact.  Any comments relative to zoning or economic and social impacts are within the jurisdiction of local zoning and planning authorities and should be addressed to them.
After receipt of public comments and thorough consideration of all comments, the staff will formulate its recommendations for permit issuance and a proposed permit if that is the recommendation. The Title V Permit to Operate is a permit that is required by Title V of the Federal Clean Air Act and the Mississippi Air and Water Pollution Control Law. The Title V permit is a Federally-enforceable permit as well as a State permit.  Therefore, the U.S. Environmental Protection Agency (EPA) will also be allowed an opportunity to review the application, proposed permit, and all comments received during the public comment period prior to Permit Board action on the application. 
  
The status regarding EPA’s 45-day review of this project and the deadline for citizen’s petitions can be found at the following website address:  https://www.epa.gov/caa-permitting/mississippi-proposed-title-v-permits. 
Additional details about the application, including a copy of the draft permit, are available by writing or calling the Public Records Request Officer at the above Permit Board address and telephone number or by completing the form at the following website: https://www.mdeq.ms.gov/about-mdeq/public-records-request/public-records-request-form/. Additionally, a copy of the draft permit and statement of basis may be found on the MDEQ’s website at: https://opc.deq.state.ms.us/publicnotice.aspx. This information is also available for review at the office of the MDEQ at the Permit Board address shown above during normal business hours. Please bring the foregoing to the attention of persons whom you know will be interested.