2020.11.23_CCO_p.21ChemoursExtensionRequest

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November 23, 2020
Mr. Brian D. Long
Plant Manager Chemours Fayetteville Works 22828 NC Highway 87 W Fayetteville NC 28306

Re: Consent Order Paragraph 21 Extension Request Dear Mr. Long,
Paragraph 21 of the Consent Order requires that Chemours sample “drinking water wells
for a distance of at least one-quarter (1/4) mile beyond the nearest well with test results showing a quantifiable level of any PFAS listed in Attachment C above 10 ng/L” and that “[s]uch testing shall be completed within eighteen (18) months of entry of this Order.” Pursuant to these requirements in paragraph 21, Chemours has been conducting its Adaptive Step Out and Infill
Sampling Program (the “Sampling Program”), which has involved sampling thousands of
drinking water wells at distances of up to fourteen miles from the plant site. Chemours’ extension request letter to DEQ for the sampling of private wells noted multiple challenges to completing the Sampling Program by the scheduled date, including: i) the size of the sampling area, ii) the impacts of COVID-19, including the sampling postponement period between March and May 2020 and precautionary changes in procedures to obtain sampling access, and iii) the low response rates to requests for sampling access, particularly since the resumption of sampling after the COVID-19 postponement period. Chemours previously requested and DEQ approved, pursuant to
paragraph 25 of the Consent Order, an extension of 3 months, to November 25, 2020, to complete the Sampling Program. DEQ received the request for extension of the deadline in paragraph 21 of the consent
order from Chemours on October 29, 2020. Therefore, DEQ hereby grants an extension of 3
months, until February 25, 2021 for the company to comply with the requirements of paragraph 21 of the Consent Order.

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Sincerely,

Sheila Holman, Assistant Secretary for the Environment NC DEQ