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: May 13, 2026	MDEQ Contact: Thomas Parker

Public Notice End Date: June 12, 2026

Mississippi Export Railroad Company, Mark B. Miller Railcar Repair Shop (MSERR), located at 11458 Saracennia Road in Moss Point, MS, (859) 533-6603, has applied to the Mississippi Department of Environmental Quality (MDEQ) for the following permitting action(s): Permit to Construct Issuance, Air Ref. No.: 1280-00150. The applicant's operations fall within SIC Code 4789 (Transportation Services, Not Elsewhere Classified). A Statement of Basis 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 Statement of Basis also addresses any changes to emissions and/or discharges resulting from any modification of the facility.

MSERR is proposing to construct a railroad spur and building, which will contain repair (cutting and welding), abrasive blasting, and painting operations to make needed repairs to railcars that have been taken out of service. MSERR process operations will generate particulate matter (PM), particulate matter less than 10 µm in diameter (PM10), particulate matter less than 2.5 µm in diameter (PM2.5), volatile organic compounds (VOCs), sulfur oxides (SO2), nitrogen oxides (NOx), carbon monoxide (CO), and hazardous air pollutants (HAPs). PM, SO2, NOx, CO, and VOC emissions will predominantly emit from the facility’s fuel burning equipment. The potential facility-wide emissions for MSERR exceed the Title V major source thresholds of 100.0 tons per year (tpy) for VOCs, 25.0 tpy for Total HAPs, and 10.0 tpy for Individual HAPs (i.e. toluene). Therefore, the facility will be classified as a Title V major source. MSERR is not listed as one of the 28 industrial categories where the Prevention of Significant Deterioration (PSD) emission threshold is reduced from 250.0 tpy to 100.0 tpy for any regulated criteria pollutant. Since MSERR’s potential-to-emit for all criteria pollutants are significantly less than 250.0 tpy, the facility is not defined as a major source with respect to PSD and will not have any PSD avoidance limitations.
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 of the permit action and its consideration of key aspects. 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 Thomas Parker at https://www.mdeq.ms.gov/Parker-Thomas/ 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 Thomas Parker at https://www.mdeq.ms.gov/Parker-Thomas/ 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.
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.