Author: Bruce Ferguson
Last saved by: Brad Luke
Company: DEQ

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: September 16, 2026	MDEQ Contact: Brad Luke

C L Dews and Sons Foundry and Machinery Company Inc, located at 1600 Edwards Street in Hattiesburg, MS, (601) 582-4427, has applied to the Mississippi Department of Environmental Quality (MDEQ) for the following permitting action: Renewal of the Synthetic Minor Operating Permit, Ref. No. 0800-00008. The applicant's operations fall within SIC Code 3321—Gray and Ductile Iron Foundries and SIC Code 3441—Fabricated Structural Metal. 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.
C. L. Dews and Sons Foundry and Machinery Company, Inc. is an existing industrial facility that produces gray iron castings and fabricates structural steel products for municipal, commercial, and industrial applications. Facility activities include welding, machining, grinding, tooling, abrasive blasting, surface coating, wood working and coating, molding and core-making, along with ancillary material handling. The facility operates two (2) 3.0 MMBTU / hour heat treating furnaces, one (1) 0.4 MMBTU / hour ladle pre-heater, and five (5) natural gas-fired space heaters. Maximum uncontrolled emissions of particulate matter (PM) under 2.5 microns in diameter (PM_2.5) and PM under 10 microns in diameter (PM_10) exceed the Title V major source thresholds of 100 tons per year (tpy). To keep emissions of PM_10 + PM_2.5 below the Title V major source threshold, the facility will always operate steel blasting operations and sand reclamation operations with the baghouse control device. The maximum uncontrolled emissions of volatile organic compounds (VOCs) exceed the Title V major source threshold of 100 tpy and the prevention of significant deterioration (PSD) major source threshold of 250 tpy, but the facility has taken a facility-wide emission limitation of 99.0 tpy of VOCs. The maximum uncontrolled emissions of individual hazardous air pollutants (HAPs) and total HAPs exceed the respective HAP major source thresholds of 10.0 tpy and 25.0 tpy, but the facility has taken a facility-wide emission limitation of 9.0 tpy for individual HAPs and 24.0 tpy for total HAPs. 
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 Brad Luke at https://www.mdeq.ms.gov/Luke-Brad/ 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. A public hearing will be held if the Permit Board finds a significant degree of public interest in the proposed permit. Persons wishing to request a public hearing may do so by submitting that request in writing to Brad Luke at https://www.mdeq.ms.gov/Luke-Brad/ 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.

5530 PER20260001