DEQ-CFW_00072097

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NCDENR
North Carolina Department of Environment and Natural
Division of Air Quality
Pat McCrory Sheila C. Holman
Governor Director
October 29, 2013
Mr. Ellis H. McGaughy
Plant Manager
E.T. du Pont de Nemours and Company
DBA, DuPont Company — Fayetteville Works
22828 NC Highway 87 West
Duart Township, North Carolina 28306-7332
SUBJECT: 502(b)(10) Notification
Permit No. 03735T37; Facility ID: 0900009
E.I. du Pont de Nemours and Company
DBA, DuPont Company — Fayetteville Works
Duart Township, Bladen County
Dear Mr. McGaughy:
Resources
John E. Skvarla, III
Secretary
On October 18, 2013, the NC Division of Air Quality received notification of an upcoming 502(b)(10)
change at your facility located in Duart Township, North Carolina. The change involves the replacement of an
aqueous CO2 scrubber system with a gas separation "permeator" system to eliminate wastewater discharge from
the vinyl ethers north process NS-B. The new system will vent 267 tons per year of CO2 directly to the
atmosphere but will not trigger any new air quality requirement. Following the proposed change, you shall
continue to control the vinyl ethers north process with baffle -plate scrubber NCD-Hdrl or NCD-Hdr2 and ensure
the process meets Conditions 2.1 C.3, 4, and 8 in your current permit.
You may implement the change provided you have given EPA a seven day advanced notice with the
information specified in 15A NCAC 2Q .0523(a)(2) and have attached a copy of the notification to your permit.
The permit shield will not extend to the gas separation system until it is incorporated into the permit at the time of
the next significant modification or upon permit renewal. Until that time, you must certify compliance with the
existing permit terms for this 502(b)(10) change on the annual compliance certification.
Should you have any questions concerning this matter, please contact me at jenny.kelvington@ncdenrW
or [phone].
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Sincerely yours, � .V
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nvironmental Engineer III ca
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cc: Fayetteville Regional Office Z
Central Files
Permitting Section
1641 Mail Service Center, Raleigh, North Carolina 27699-1641
217 West Jones Street, Raleigh, North Carolina 27603
Phone: [phone] / Fax: [phone]
Internet: www.ncair.org
An Equal Opportunity \ Affirmative Action Employer — Made in part by Recycled Paper
DEQ-CFW 00072097

502(b)(10) Notification Form
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NCDENR
812912013
Site Name: DuPont Company - Fayetteville Works
Facility Contact: Michael E. Johnson
Site Address (911 Address), 22828 NC Highway 87 W
Contact Phone Number: [phone]
City/Countyr. Fayetteville I Bladen
Contact Email Address: [e-mail]
Facility ID No. 0900009
Regional Office Where Facility is Located: Fayetteville
QUALIF IOATION-.Ci4ECKLIST,. .i�:
This change does not violate any existing requirement in the current Title V air quality permit.
This change does not cause emissions allowed under the permit to be exceeded.
ID
This change does not require'a case -by -case determination (e.g. BAQT)
F±1
This change is not a modification under Title I of -the federal Clean Air Act.
2
IThis change does not alter 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 NG Toxics program.
This change will not be made until at least seven (7) days after the NC DAQ receives written notification.
A copy of this notification form will be attached to my permit until the permit is revised at the next significant modification or renewal.
"Process utilize' n a :urrently the Vinyl Ethers North s a queous CO2 scrubber system that reacts the CO2 with potassium hydroxide and discharges the resu'i�ln'g' byproducts as an
queous water. This aqueous scrubber system is being replaced with a gas separation ("permeator") system, The new system will vent the CO2 directly to the atmosphere,
hereby eliminating the wastewater discharge. The anticipated date on which the change will occur is seven (7) days following the receipt of this notification by NC Division of Air
I Vinyl Ethers North Process I - NS-B I None 1 267 TPY CO2 I
understand that it is my responsibility to ensure each proposed modification qualifies as a 502(b)(I 0) change under ISA NCAC 2Q .0523. My facility assumes all financial risks associated with construction and
peration without a permit revision and will not proceed until after providing both the EPA and NC DAQ a seven day advanced notice. This notification will be attached to the permit prior to makIng a change
nd 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
DITIpliance certification. Emissions resulting from the affected source(s) will be included in the annual emissions inventory, I am aware the permit shield in ISA NCAC 20.0512(a) does not extend to the
Name (typed): Ellis H. McGaughy Title: Plant Manager
X Slgnature.7, -//,/, k" V7Zf '14 - Date: October 16, 2013