NC0003573_316(b) Determination 2015_20150309

PO T 1 DuPont Chemicals&Flueroproducts
Fayetteville Works Plant
22828 NC Hwy 87 West
Fayetteville,NC 283067332
CERTIFIED MAIL ARTICLE NUMBER 7007 0710 0005 1455 9799
RETURN RECEIPT REQUESTED
RECEIIgoi N iQ R
arc ,
N,IAR 0 9 2015
Ms. Teresa Rodriguez
NCDENR Division of Water Resources Water Quality
NPDES Complex Permitting Unit
Permitting Section
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
SUBJECT: 316(b)Preliminary Determination
NPDES Permit No.NC0003573
Dear Ms. Rodriguez:
This letter is in response to the February 25, 2015 request from the North Carolina Division of
Water Resources for the below information so as to make a final determination of the applicabilithy
of the new Cooling Water Intake Structure Rule of Section 316(b) of the Clean Water Act.
1. Design intake flow for the facility: 21.600 MGD from the Cape Fear River
2. Average actual intake (2012-2014): 10.149 MGD from the Cape Fear River
3. Percent of water used exclusively for cooling purposes: Approximately 83%
Should you have any questions,please feel free to call me at [phone].
S"./0000f-ir
Michael E. Johnson, PE
Environmental Manager
E.I.du Pont de Nemours and Company