2019.05.09_CCO.p14_NCDEQResponsesToLaboratoryQuestionsCoverLetter

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

May 9, 2019
Sheila Holman
Assistant Secretary for the Environment
1601 Mail Service Center
Raleigh, NC 27699-1601
[e-mail]

Re: Responses to DEQ Questions on Laboratories for Consent Order Paragraph 14
Toxicity Studies
Dear Ms. Holman,
On March 1, 2019, Chemours submitted its proposal to retain Charles River Laboratories
for the human health (mammalian) toxicity studies and EAG Laboratories for the aquatic life
(ecological) toxicity studies under Paragraph 14 of the Consent Order. On March 11, DEQ
approved the use of Charles River Laboratories, indicated it was “still reviewing Chemours’
request to approve the use of EAG Laboratories,” and asked a series of detailed questions on
both laboratories. Since that time, Chemours has been working with both laboratories to compile
the requested information and provide responses to DEQ’s questions. The final responses from
the laboratories are enclosed here.

We would appreciate receiving your confirmation of approval of EAG Laboratories. If
you have any further questions, please let me know.

Sincerely,

Brian D. Long
Plant Manager
Chemours – Fayetteville Works

Enclosures
Charles River Laboratories Responses to DEQ Questions
EAG Laboratories Responses to DEQ Questions

2
Cc:
William F. Lane, DEQ
Francisco Benzoni, NC DOJ
Michael Abraczinskas, DAQ
Michael Scott, DWM
Linda Culpepper, DWR
David C. Shelton, Chemours
John F. Savarese, WLRK
Kemp Burdette, CFRW
Geoff Gisler, SELC