DEQ-CFW_00067971

4M. DuPont Chemicals & Fluoroproducts
Fayetteville Works Plant
RE6E �,,� 22828 NC Hwy 87 West
Fayetteville, NC 28306.7332
APR 1.7 2013
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FAYETTEVILLE REGIONAL OFFICL
April 15, 2013
Mr. Steven F. Vozzo
NCDENR — Division of Air Quality
225 Green Street — Suite 714
Fayetteville, NC 28301
SUBJECT: Title V Air Permit— 502(b)(10) Notification Form
Air Quality Permit No. 03735T37
DuPont Company — Fayetteville Works
Facility ID: 03/09/00009
Dear Mr. Vozzo:
Enclosed are an original and two copies of the 502(b)(10) Notification Form to allow for a minor
modification of the Butacite® Polyvinyl Butyral Flake Dryer's Baghouse (fabric filter) at the
DuPont Company — Fayetteville Works.
To expedite the approval process, a copy of this notification has been sent directly to the
attention of Ms. Jenny Kelvington in the Division of Air Quality's central office.
If you should have any questions additional or need additional information, please feel free to
contact me at [phone].
Environmental Manager
Enclosures
cc: U.S. EPA Region 4, Air and EPCRA Enforcement Section, Atlanta, GA
E.I. du Pont de Nemours and Company
DEQ-CFW 00067971

b)(10) Notification Form
(Site Name: DuPont Company - Fayetteville Works (Facility Contact: Michael E. Johnson
Site Address (911 Address): 22828 NC Highway 87 W IContact Phone Number: [phone] 1
City/County: Fayetteville / Bladen County IContact Email Address: [e-mail]
Current Air Quality Permit No. 03735T37 Regional Office Where Facility is Located:
r .. �. F. 2 -1 "Y I X11 QIJALIFIGA'l'1 cH
)� 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.
This change does not require a case -by -case determination (e.g. BACT)
0 This change is not a modification under Title I of the federal Clean Air Act.
LI 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 NC 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.
-ovide a brief description of the change, the anticipated date on which the change will occur, and any permit term or condition no longer applicable as a result of the change. Attach a process flow
agram if relevant.
he Butacite@ Process' polyvinyl butyral flake dryer dust emissions are controled by a cyclone separator (ID No. BCD-Cl) followed by a
3aghouse" that is comprised of 540 fabric filter bags, each 100 inches long. Currently the Baghouse filter bags total 6,858 square feet of filter
rea. To comply with a National Fire Protection Association standard (NFPA 68 Section 8.7), seventy six (76) of the filter bags closest to the
aghouse's rupture panel must be shortened from 100 inches to 36 inches so as to not obstruct the rupture panel's pressure relief area. This will
mult in a reduction of filter area from 6,858 square feet to 6,245 square feet. The flow rate though the Baghouse will remain 45,000 ACFM.
Once a month observation of the emission point of the
Butacite® PVB flake BS-C /BCD-C2 15A NCAC 2D .0515 negligible
dryer / affected source for any visible emissions above normal.
fabric bagfilter DuPont will re-establish normal visible emissions within thirty
BS-C BCD-C2 15A NCAC 2D .0521 (30) days of reducing the filter area of the Baghouse. negligible
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SICNA"FUI�I=".PCT` �
Name (typed): Ellis H. McGaughy A Title: Plant Manager
Signature:
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Date: y /l S' / 2n 13
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