AQ_F_0900009_20220812_PRMT_502b10-Not

The Chemours Company
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9 Chemours Fayetteville Works
22828 NC Highway 87 W
Fayetteville,NC 28306
CERTIFIED MAIL 7017 1450 0002 3902 4331
August 2,2022
Mr. Mark Cuilla
Chief, Pennitting Section
Division of Air Quality,NCDEQ RECEIVED
1641 Mail Service Center
Raleigh,NC 27699-1641 AUG 0 8 2022
Subject: Title V Air Permit- 502(b)(10)Notification Form
Chemours Company—Fayetteville Works DEQ-FAYMEVILLE REMNAL OFFICE
Facility ID: 0900009,Fayetteville, Bladen County
Current Permit No. 03735T48
Dear Mr. Cuilla:
The Chemours Company—Fayetteville Works (Chemours) is located near Duart Township in Bladen
County,North Carolina. The Site is located 15 miles southeast of the City of Fayetteville on NC
Highway 87, south of the Bladen-Cumberland County line. The facility currently operates under Air
Permit No. 03735T48 for which a Title V renewal application was submitted in September 2020.
Enclosed is a copy of the 502(b)(10)Notification Form to allow for a minor modification of VE-North
Indoor Fugitives Carbon Adsorber(Control Device ID No.NCD-Q3) at the Fayetteville Works.
If you have any questions,please contact me at 910-678-1213 or by email at
cliristel.e.compton( ,clhemours.com.
Sincerely,
19
Christel Compton
Environmental Manager
Chemours Company
Enclosure
Cc: U.S. EPA Region 4, Air Planning Branch, 61 Forsyth Street SW, Atlanta, GA 30303
Heather Carter,NC DEQ Fayetteville Regional Manager

502(b)(10) Notification Form
Site Name:The Chemours Company-Fayetteville Works Facility Contact: Christel Compton
Site Address(911 Address):22828 NC Highway 87 West Contact Phone Number:910-678-1213
City/County:Fayetteville/Bladen County Contact Email Address:[e-mail] Air Quality
C]UC.I.ITY
Facility ID No.0900009 Regional Office Where Facility is Located:Fayetteville FNVIIZONMv8/FNT AtrNTAI_ 7
502(b)(10)QUALIFICATION CHECKLIST
❑✓ This change does not violate any existing requirement in the current Title V air quality permit.
0 This change does not cause emissions allowed under the permit to be exceeded.
❑✓ This change does not require a case-by-case determination(e.g.BACT)
❑� This change is not a modification under Title I of the federal Clean Air Act.
❑✓ This change does not alter(modify or add to)any existing monitoring,reporting or recordkeeping provisions in my current permit.
❑✓ This change does not require a change to an existing permit term that was taken to avoid an applicable requirement.(e.g.PSD avoidance condition)
�✓ This change does not require a permit under the NC Toxics program.
❑✓ This change will not be made until at least seven(7)business days after the NC DAQ receives written notification.
A copy of this notification form and interim permit conditions will be attached to my permit until the permit is revised at the next significant modification or renewal.
DESCRIPTION OF CHANGE
To improve the fugitive emissions removal efficiency of HFPO-DAF and HFPO-DA from emission source VE-North indoor fugitives(NS-B2),the current carbon adsorber(NCD-Q3)will be
replaced with a larger vapor phase carbon adsorber.The activated carbon used to adsorb vapor phase organics will also be changed from a coal-based extrudate to a granular coconut
shell-based carbon(notwithstanding unanticipated pressure drop issues).It is anticipated that these changes will improve both the overall life of the carbon as well as the instantaneous
removal efficiency prior to bed change-out.
Installation will be completed in October 2022. No alteration to any existing permit term or condition will occur as a result of this change.
ATTACH A COPY OF THE PROPOSED PERMIT CONDITIONS FOR EACH REQUIREMENT THAT APPLIES TO THE PERMIT MODIFICATION
New or Modified Source/Control Device ID No. Applicable Standard with Proposed Monitoring(e.g.15A NCAC 2D.0515,.0521,.1111 MACT ZZZZ) Emissions Change (tons/year)
Carbon Adsorber NCD-Q3 15A NCAC 02Q.0508U) O
SIGNATURE OF RESPONSIBLE OFFICIAL/AUTHORIZED CONTACT
I understand that it is my responsibility to ensure each proposed modification qualifies as a 502(b)(10)change under 15A NCAC 2Q.0523.My facility assumes all financial risks associated with construction and
operation without a permit revision and will not proceed until after providing both the EPA and NC DAQ a seven business day advanced notice. This notification will be attached to the permit prior to making a
change and remain until the permit is revised to include the change(s).The facility will follow the proposed monitoring and attached permit conditions during the interim period and address compliance in the annual
compliance certification.Emissions resulting from the affected source(s)will be included in the annual emissions inventory.I am aware the permit shield in 15A NCAC 2Q.0512(a)does not extend to the change(s).
Name(typed):Daw[n�Hughes Title:Plant Manager
X Signature: �(Q,th•� Date: �f�2�y0ZZ