NCG060383_ROS Denial Letter_20190821

ROY COOPER
Cavernor
MICHAEL S. REGAN
--Srrreiary
S. DANIEL SMITH
Director
Mountaire Farms Inc.
Siler City Processing Plant
Attn: Darrell Horner
1101 E. Third Street
Siler City, NC 27344
Mr. Horner:
NORTH CAROLINA
Environmental Quality
August 21, 2019
Subject: NPDES General Stormwater Permit
Permit Number NCG060383
Representative Outfall Status Request
Chatham County
The Raleigh Regional Office staff have reviewed your request dated February 01,2019 for a
determination that stormwater discharge outfall (SDO) 001 be granted representative outfall status
(ROS) for stormwater outfalls 002. Based on the compliance evaluation inspection conducted by
Thad Valentine on August 7, 2019, the Raleigh Regional Office cannot approve your request at this
time.
According to Mr. Valentine, there are not enough historical data available at the inspection
due to the limited amount of time the plant has been operational. Ideally a minimum of eight (8) to
ten (10) analytical and qualitative samples are needed to support the assertion of similar or less
stormwater pollution potential in the sub -drainage areas to be represented. When evidence
supports ROS after eight (8) to ten (10) analytical and qualitative sample events, you may request
ROS consideration from this office. Additionally, there is an added sample point that will need to be
part of the new sample protocol, making it three sample points, with this added sample point added
to the site plan The destination and exact configuration of SDO-1 is still undetermined and will need
to be investigated further with a more detailed layout of the stormwater utilities.
If you have any questions or comments concerning this letter, please contact Thad Valentine at
[phone], or at Thad.valentine(@ncdenr.gov.
Sincerely, ,, //
1 6
for S. Daniel Smith
QA NUr IliLarohna Departrnent of Envlronowntal Quality i Division of Energy, Mineral anti Lana Resources
•/ 512 Nurttm Salisbury Strect 1 1611NIall Service Ctnter I Raleigh, North Carolina TA)114 1W2