WQ0006594_Correction_20170221

Water Resources
ENVIRONMENTAL QUALITY
February 21, 2017
LISA HAYNES — CORPORATE ENVIRONMENTAL MANGER
UNIFI, INC.
POST OFFICE BOX 1437
REIDSVILLE, NORTH CAROLINA 27323
Dear Ms. Haynes:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
Subject: Permit No. WQ0006594
Correction
Unifi, Inc. Distribution of
Residual Solids
Residuals Management System
Rockingham County
In accordance with your written request received January 11, 2017, we are forwarding herewith a
corrected Attachment A for Permit No. W00006594 issued October 2, 2014.
The correction to the subject permit is as follows:
1. Because the residuals from the industrial process have no pathogens present and have
demonstrated this, then requirements for pathogen and vector attraction reduction are waived.
Please replace Attachment A of Permit No. WQ0006594 issued October 2, 2014, with the
enclosed corrected Attachment A.
If you need additional information concerning this permit correction, please contact Troy Doby at
[phone] ortroy.doby ncdenr.gov.
Sincerely,
S. Jay Zimmerman, P.G., Director
Division of Water Resources
Enclosure
cc: Rockingham County Health Department (Electronic Copy)
Winston-Salem Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Roy Whitaker —EMA Resources (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files
---�— Nothing Compares'.,
State of North Carolina I Environmental Quality I Water Resouroes I Water Quality Permitting I Non -Discharge Permitting
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6332

ATTACHMENT A - Approved Residual Sources
Unifi, Inc.
Certification Date: February 21, 2017
Permit Number: WQ0006594 Version: 3.0
Owner
Facility Name
County
Permit
Biological
Maximum
Dry Tons
Monitoring
Frequency for
q y
Monitoring
Frequency for
q y
Monitoring
Frequency for
Approved
Number
Residuals
Per Year'
Non -hazardous
Metals and
Pathogen &
Mineralization
Characteristics 2
Nutrients 5, 5
Vector Attraction
Rate
Unifi, Inc.
Unifi Inc. Dyed Operations
Reductions a 5• 6
Reidsville
Rockingham
R-00002
Yes
100
AnnuallyAnnually
None
0.3
Total
100
L Maximum Dry Tons per Year is the amount of residuals approved for distribution from each permitted facility.
2. Analyses to demonstrate that residuals are non -hazardous (i.e., TCLP, ignitability, reactivity, and corrosivity) as stipulated under permit Condition IV.2.
3. Testing of metals and nutrients as stipulated under permit Condition IV.3.
4. Analyses of pathogen and vector attraction reductions as stipulated under permit Condition IVA.
5. Monitoring frequencies are based on the actual dry tons applied per year using the table below, unless specified above.
Dry Tons Generated
short tons per ear
Monitoring Frequency
Established in 40 CFR 503 and 15A NCAC 02T .I l 11
<319
][Year
=:-319 - <1,650
l/ Quarter 4 times per ear
=>1,650 - <16,500
1/60 Days (6 times per ear
=>16,500
1/month 12times per ear
6. Industrial Byproduct residuals are exempt from meeting the vector attraction reduction requirements in Condition IV A, provided they are not mixed with residuals that have been generated during
the treatment of domestic wastewater, the treatment of animal processing wastewater, or the biological treatment of industrial wastewater. The Class A Industrial Byproduct residuals must be
treated and processed in a manner as to not meet the definition of `Biological Residuals" as defined in 15A NCAC 02T .1102(6).
If no land application events occur during a required sampling period (e.g. no land application occur during an entire year when annual monitoring is required), then no
sampling data is required during the period of inactivity. The annual report shall include an explanation for missing sampling data. Those required to submit the annual
report to EPA may be required to make up the missed sampling, contact the EPA for additional information and clarification.
W00006594 Version 3.0 Attachment A Page 1 of 1