2021.03.31_CCOA.p4_StormwaterSystemPilotAuthorization

March 31, 2021
Ms. Dawn Hughes Plant Manager The Chemours Company FC LLC
22828 NC Highway 87 W Fayetteville, NC 28306-7332 RE: Paragraph 4 of Addendum to the Consent Order – Authorization to Conduct Design, Construction and Initial Operation as a Pilot Project
Dear Ms. Hughes: This letter confirms the North Carolina Department of Environmental Quality’s
authorization for Chemours to conduct the design, construction and initial operation of the
Monomers/IXM capture and treatment system as a pilot project to reduce PFAS loading from stormwater as required by Paragraph 4 of the Addendum to the Consent Order. The system must be installed and operational by June 30, 2021. The system must be constructed and operated in conformity with the Addendum as well any conditions or requirements contained in the
stormwater sampling plan required under Paragraph 4(b) of the Addendum once it is approved.
That plan is currently under review and the agency will provide comments shortly. The sampling data contained in the report required by Paragraph 4(c) of the Addendum and due by September 30, 2021 will inform the permit requirements for the long-term operation of the
system.
If you have any questions regarding this authorization, please contact Sushma Masemore at [phone].
Sincerely,

Sheila Holman
Assistant Secretary for the Environment

cc: Brian Long
Christel Compton
Kevin Garon Joel Gross Todd Coomes David Shelton
John Savarese
Geoff Gisler Kemp Burdette Bill Lane Sushma Masemore
Francisco Benzoni
Asher Spiller Julie Grzyb Danny Smith Annette Lucas
Brian Wrenn