NC0000272_301(b) Determination 2015_20150331

INTERNATIONALO PAPER
March 25, 2015
NPDES Complex Permitting Unit
Attn: Teresa Rodriguez
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: NPDES Permit NC0000272
316(b) Determination
Dear Ms. Rodriguez:
RIEGELWOOD MILL
865 JOHN L. RIEGEL ROAD
RIEGELWOOD, NC 28456
PHONE[phone]
RECEIVEDIDENRIDWR
MAR 3 12015
Waiter Quality
Permittinq Sectior,
I am writing in response to your March 25, 2015 letter to Edward Kreul asking for information regarding
our use of water exclusively for cooling. The information requests are restated and answered below.
1. Design intake flow for your facility (maximum flow the intake structure is capable of withdrawing.)
The specified design capacity of the river water intake screen is 40 million gallons per day (MGD).
In reviewing pumping data 2012 to present, the highest hourly flow rate we found was 49.6 MGD.
At that time all of the intake pumps were running.
2. Actual Intake for your facility (average volume of water withdrawn on an annual basis over the
past three years.)
Year
Annual Withdrawal MG
Average Withdrawal (MGD)
2012
12,908
35.3
2013
12,405
34.0
2014
12,140
33.3
Average
12,484
34.2
3. Percent of water withdrawn on an actual intake flow basis used exclusively for cooling purposes.
Approximately 13% of the total intake 2012 through 2014 was used exclusively for cooling based
on measured process cooling water use and an estimate of water used in local air conditioning
units.
I hope this is the information you need. If you have any questions or require additional information, please
call me at [phone].
Yours truly,
A, -eer��
Gary Morrow
Environmental Manager