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 23, 2021	MDEQ Contact: Clinton Gentryr

GX Technologies LLC, located at Plant Road off of Lower Woodville Road, in Natchez, MS, (412) 818-0376, has applied to the Mississippi Department of Environmental Quality (MDEQ) for the following permitting action(s): Permit to Construct, Air Ref. No. 0040-00062. The applicant's operations fall within SIC Code 2819.  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.  
The facility’s primary function is the production of Graphene Oxide (GO) via the oxidation of graphite flakes. The facility has the following emission points: one (1) baghouse, two (2) graphene oxide process vents, one (1) adsorption unit, one (1) offgas scrubber, eleven (11) miscellaneous storage tanks, one (1) cooling tower, one (1) space heater, and fugitive equipment leaks.
GX Technologies will be located within the same plant boundary as PowerChem Inc. (AI 79314) and as such, the two facilities will be considered adjacent to one another. While the two facilities will have two separate permits, they will be considered as one emission source and their combined emissions will determine the emission limits for both facilities.
GX Technologies does not exceed the Title V threshold for any criteria pollutants and as such, qualifies as a True Minor Source. However, both GX Technologies’ and PowerChem’s emissions combined have the potential to exceed the Title V threshold for individual HAPs. Since GX Technologies’ HCl emissions are low (< 1 tpy) and the majority of the combined HCl emissions are attributed to PowerChem, putting an emission limit on PowerChem’s individual HAP emissions will ensure that both facilities stay under the Title V threshold of 10 tpy. 
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 that the final staff recommendation on 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 resulting recommendation to the Permit Board. 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.
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.