The Chemours Company
Fayetteville Works
22828 NC Highway 87 W
Fayetteville, NC 28306

April 22, 2019

Michael Abraczinskas
Director, Division of Air Quality
1641 Mail Service Center
Raleigh, NC 27699-1641
michael.abraczinskas@ncdenr.gov
Re:Monthly Emissions Report Pursuant to Consent Order Paragraph 8

Dear Mr. Abraczinskas,Pursuant to Paragraph 8.d of the Consent Order, please find enclosed the monthly
emissions report for GenX Compounds from Fayetteville Works. The report was prepared withsupport from our consultant, ERM NC, Inc. (“ERM”). Please note that the spreadsheet fileunderlying the report contains confidential business information of Chemours. Accordingly, wewill send that spreadsheet file under separate cover directly to you, and the spreadsheet file will
not be further distributed or posted on Chemours’ website.
The enclosed monthly emissions report shows the estimated GenX Compounds emissions
through March and the projected emissions for the rest of the year, and identifies the assumptions
that underlie the estimates. Further, the report accounts for the results of recent stack testing,conducted between February 26 and March 1 and between March 25 and 26 while the VinylEthers North (“VEN”) facility was running a PPVE campaign. We submitted the final reports
for the February 26 - March 1 stack testing last Monday, April 15, and the final report for theMarch 25 - 26 stack testing, from Weston Solutions, Inc. (“Weston”), is enclosed.
As we noted in our submission of the monthly emissions report last month, the February
26 - March 1 stack testing indicated the presence of additional GenX Compounds emissions
sources entering the stack after the carbon unit, and we quickly identified three possible sources(the permeator vent, analyzer room, and possible leaks between the VEN building and HFPObuilding) and took immediate action to address them. Specifically, we re-routed the permeatorvent from the stack to the waste gas scrubber, so that emissions from the permeator are now
controlled by both scrubbers and by the carbon unit. Second, we turned off the DAF GC
analyzer, and, third, we sealed up small penetrations between the VEN and HFPO buildings.
The results of the March 25-26 stack testing verify the efficacy of these actions, as they show
minimal difference between the emissions exiting the carbon unit and the emissions exiting thestack.
Based on these recent stack testing results and the identified assumptions, ERM’s
calculations continue to show that the facility will meet the Consent Order’s 82% and 92%

requirements for plant-wide interim reductions of emissions of GenX Compounds. Should theseassumptions change, we will take other actions as necessary to maintain compliance.
If you have any questions or would like to discuss further, please contact me.
Sincerely,

Brian D. Long
Plant Manager
Chemours – Fayetteville Works

Enclosures
April 2019 Monthly Emissions ReportFluoromonomers Manufacturing Process Vinyl Ethers North Carbon Bed Removal
Efficiency and Division Stack Test Report, Test Dates: 25 and 26 March 2019
Cc:Sheila Holman, DEQ
William F. Lane, DEQ
Francisco Benzoni, NC DOJ
Michael Scott, DWM
Linda Culpepper, DWRDavid C. Shelton, Chemours
John F. Savarese, WLRK
Kemp Burdette, CFRW
Geoff Gisler, SELC2