Public Notice
Alabama Department of Environmental Management

Notice of Proposed Air Permit for Prevention of Significant Deterioration (PSD)
and Request For Comments
Facility No. 503-0106


On October 13, 2023, Outokumpu Stainless USA, LLC submitted a complete Prevention of Significant Deterioration (PSD) Permit application for the proposed expansion to their existing stainless steel mill. This facility is located at 1 Steel Drive in Calvert, Alabama.

The proposed modification is subject to the requirements of the Prevention of Significant Deterioration (PSD) regulations as set forth in ADEM Admin. Code r. 335-3-14-.04.  An ADEM-Air Division technical staff preliminary determination indicates:

  1. Best Available Control Technology (BACT) is represented for control of nitrogen oxides (NOx), carbon monoxide (CO), particulate matter (PM, PM10 and PM2.5) and greenhouse gases (CO2e).  In determining BACT, the Department considered the impact of the control technology on air pollutants that may be emitted by the source including those not regulated by the Clean Air Act.  A discussion of how BACT was determined is included in the Department’s preliminary determination.
  2. The source is located approximately 150 kilometers from the Breton Wildlife Refuge (a federal PSD Class I area). This proposed project would consume the following:
  3. Pollutant

    % NAAQS

    SO2, 1-hour


    SO2, 3-hour


    SO2, 24-hour


    SO2, Annual


    PM10, 24-hour


    PM10, Annual


    PM2.5, 24-hour


    PM2.5, Annual


    NO2, 1-hour


    NO2, Annual


    CO, 1-hour


    CO, 8-hour


    PB (Lead), Quarterly


  4. The maximum combined pollutant concentration from Outokumpu Stainless USA, LLC would be less than the National Ambient Air Quality Standards (NAAQS).  The NAAQS are levels set by the Environmental Protection Agency which identify the ambient concentration necessary to protect human health and welfare with an adequate margin of safety.

ADEM has determined that the limitations proposed by the company would properly limit emissions.

The following are links to the preliminary determination and permit application:

Preliminary Determination
Permit Application

Persons wishing to comment may do so, in writing, to the Department’s named contact below.  In order to affect final decisions, comments must offer technically substantial information that is applicable to the proposed application.  All comments must be received no later than 5:00 p.m., November 29, 2023.

Ronald W. Gore, Chief
ADEM-Air Division
1400 Coliseum Blvd.
[Mailing address: PO Box 301463; Zip 36130-1463]
Montgomery, AL 36110-2400
(334) 271-7861

A public hearing is also being noticed for this permit, which will be held on Tuesday, November 28, 2023, at 6:30 p.m., at Outokumpu located at 1 Steel Drive, Calvert, AL 36513.  More information regarding this hearing can be found at

After consideration of all written comments, review of any public hearing record, and consideration of the requirements of the Alabama Air Pollution Control Act, the Federal Clean Air Act and applicable regulations, the Department will make a final determination.  The Department will develop a response to comments, which will become part of the public record and will be posted to the Department’s eFile system. 

Copies of the complete project file are available for public inspection Monday through Friday (except legal holidays), 8:00 a.m. to 5:00 p.m., at the ADEM Main Office at the address listed above.  For convenience, documents that exist in electronic format may be accessed in the Department's document management system, eFile.  To view these documents, select Media Area “Air”, enter the facility number shown above as the Permit Number, select Document Type “Permitting”, and press Search.  The most recent documents will be listed at the top by default.  The Document Type may also be left blank, which will list all electronically available air files for this facility.

The Department maintains a list of interested individuals who are mailed legal notices regarding proposed permits.  If you wish to receive such notices, please sign up here.

This notice is hereby given this 27th day of October, 2023, by authorization of the Alabama Department of Environmental Management.


Lance LeFleur

Nondiscrimination Statement: The Department does not discriminate on the basis of race, color, national origin, sex, religion, age or disability in the administration of its programs.