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HomeMy WebLinkAboutAQ_F_0900009_20130416_CMPL_Fac-Ltr Qf o N Tr DuPont Chemicals&Fluoropmducts f Fayetteville Works Plant 22828 NC Hwy 87 West Fayetteville,NC 28306 7332 April 15, 2013 Ms. Jenny Kelvington NCDENR—Division of Air Quality Permits Section 1641 Mail Service Center Raleigh,NC 27699-1641 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 Ms. Kelvington: Enclosed is a copy 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. As required by the subject permit, an original and two copies of the notification have been sent to the attention of Mr. Steven Vozzo at the Division of Air Quality's regional office in Fayetteville. If you should have any questions additional or need additional information, please feel free to contact me at(910) 678-1155. Sincerely, Michael E. Johnson Enviromnental Manager Enclosure cc: U.S. EPA Region 4, Air and EPCRA Enforcement Section, Atlanta, GA E.I.du herds Nemours and Company 502(b)(10) Notification Form Site Name: DuPont Company-Fayetteville Works Facility Contact: Michael E.Johnson ( ® Site Address (911 Address): 22828 NC Highway 87 W Contact Phone Number: (910) 678-1155 City/County: Fayetteville/Bladen County Contact Email Address: michael.e.johnson@dupont.com CDIENR Current Air Quality Permit No. 03735T37 Regional Office Where Facility is Located: Fayetteville 3/21/2013 502(b)(10) QUALIFICATION CHECKLIST ❑� 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.SACT) This change is not a modification under Title I of the federal Clean Air Act. This 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. ❑v This change will not be made until at least seven(7)days after the NC DAQ receives written notification. 0 JA copy of this notification form will be attached to my permit until the permit is revised at the next significant modification or renewal. DESCRIPTION OF CHANGE Provide 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 diagram if relevant. The Butacite® Process' polyvinyl butyral flake dryer dust emissions are controled by a cyclone separator(ID No. BCD-Cl)followed by a "Baghouse"that is comprised of 540 fabric filter bags, each 100 inches long. Currently the Baghouse filter bags total 6,858 square feet of filter area. To comply with a National Fire Protection Association standard (NFPA 68 Section 8.7), seventy six(76) of the filter bags closest to the Baghouse'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 result 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. t Newor Modified + Projected Emissions ID No. Applicable Standards Proposed Monitoring Source/Cont rol Device Change BS-C/BCD-C2 15A NCAC 2D .0515 Once a month observation of the emission point of the negligible Butacitery PVB flake affected source for any visible emissions above normal. dryer/ DuPont will re-establish normal visible emissions within thirty fabric bag filter BS-C/BCD-C2 15A NCAC 2D .0521 (30) days of reducing the filter area of the Baghouse. negligible SIGNATURE OF RESPONSIBLE OFFICIAL/AUTHORIZED CONTACT Name(typed): Ellis H.McGaughy Tide: Plant Manager X Signature: L/I ��� ) Date: E� q //5��� 3 l