WQ0006060_Final Permit_20150130

'"
"'r" 7'
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R. van der Vaart
Governor Secretary
January 30, 2015
CASIMIRO LIBORIO —VICE PRESIDENT / GENERAL MANAGER
GERDAU AWRISTEEL US, INC.
POST OFFICE BOX 481980
CHARLOTTE, NORTH CAROLINA 28269
Subject: Permit No. WQ0006060
Charlotte Steel Mill
Closed -Loop Recycle System
Mecklenburg County
Dear Mr. Liborio:
In accordance with your permit renewal request received November 26, 2014, we are forwarding
herewith Permit No. WQ0006060 dated January 30, 2015, to Gerdau Ameristeel US, Inc- for the
continued operation of the subject wastewater treatment and closed -loop recycle facilities. PIease note
that this renewed permit shall become effective on June 1, 2015 (i.e. the day after the expiration date of
the existing permit).
This permit shall be effective from June 1, 2015 until May 31, 2020, shall void Permit No.
WQ0006060 issued June 30, 2006, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements listed in Section IV for they may
differ from the previous permit issuance. Failure to establish an adequate system for collecting and
maintaining the required operational information shall result in future compliance problems.
Please note the following permit conditions are new since the last permit issuance dated
June 30, 2006:
Condition II_3. — This condition requires that the Permittee maintain the listed setbacks,
which were a requirement when the facility was permitted under 15A NCAC 02H .0219(k).
➢ Condition III-3. — This condition requires that the public be prohibited access to the
wastewater treatment and closed -loop recycle facilities_
➢ Condition W.2. — This condition requires that a Division certified laboratory conduct all
laboratory analyses for the required effluent, groundwater or surface water parameters.
➢ Condition IV.3. — This condition requires that the Penmittee keep a record of all residuals
removed from the facility.
➢ Condition VI.7. -- This condition requires the Permittee to maintain this permit until all
permitted facilities are properly closed or permitted under another permit.
Non-Mscharge Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: [phone] Internet: htio://Dortal.ncdenr.ergiwebM
An Equal Opportunity I Affirmative Action Employer— Made in part with recycled paper

Mr. Casimiro Liborio
January 30, 2015
Page 2 of 2
➢ Condition VIX — This condition notes that this permit is subject to revocation or unilateral
modification within 60 days notice from the Division if the terms in 15A NCAC 02T .0110
are violated.
➢ Condition V1.9. — This condition notes that this facilities in this permit may not be expanded
if the Permittee exemplifies any of the criteria. in 15A NCAC 02T .0120(b).
If any parts, requirements or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and
binding.
If you need additional information concerning this permit, please contact Nathaniel Thornburg at
[phone] or nathaniel.thornburg&cdenngov.
Sincerely,
iJay;-Z�i�mmerman, Acting Director
Division of Water Resources
cc: Mecklenburg County Health Department (Electronic Copy)
Mooresville Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Central Files
Digital Permit Archive (Electronic Copy)

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RA.LEIGH
CLOSED -LOOP RECYCLE SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules and Regulations
PERMISSION IS HEREBY GRANTED TO
Gerdau Ameristeel US, Inc.
Mecklenburg County
FOR THE
continued operation of a wastewater treatment and closed -loop recycle facility consisting of:
a groundwater withdrawal and remediation system consisting of: three groundwater recovery wells each
rated at 2 gallons per minute (GPM); and all associated piping, valves, controls and appurtenances;
a leachate treatment system consisting of a batch treatment system for the adjustment of pH; a cartridge
filter for the removal of particulate material; and all associated piping, valves, controls and appurtenances;
a closed -loop contact cooling water recycle system consisting of: oil/water separators; settling basins;
cooling towers with a combined capacity of approximately 189,000 gallons; pumps to transfer the contact
cooling water in a closed -loop from the cooling system to the mill and back; and all associated piping,
valves, controls and appurtenances; and
a closed -loop cooling system consisting of oil/water separators; settling basins; cooling towers with a
combined capacity of approximately 114,000 gallons; pumps to transfer the contact cooling water in a
closed -loop from the cooling system to the melt shop and back; and all associated piping, valves, controls
and appurtenances;
to serve the Charlotte Steel Mill, with no discharge of wastes to surface waters, pursuant to the
application received November 26, 2014, and in confonznity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of Environment and Natural
Resources and considered a part of this permit.
This permit shall be effective from June 1, 2015 until May 31, 2020, shall void Permit No. WQ0006060
issued June 30, 2006, and shall be subject to the following specified conditions and limitations:
WQ0006060 Version 4.0 Shell Version 150101 Page I of 5

I. SCHEDULES
No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division forms. Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if wan -anted, will renew the permit for such period of
time and under such conditions and limitations as it may deem appropriate. Please note Rule I SA
NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal
application. [15A NCAC 02T .0105(d), 02T .0106, 02T .0109, and 02T .0115(c)]
H. PERFORMANCE STANDARDS
1. The subject non -discharge facilities shall be effectively maintained and operated at all tunes so there
is no discharge to the surface waters, nor any contravention of groundwater or surface water
standards. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions due to improper operation and maintenance, the Permittee shall take immediate
corrective actions including Division required actions, such as the construction of additional or
replacement wastewater treatment or recycle facilities. [15A NCAC 02T .0108(b)(1)]
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or
surface water resulting from the operation of this facility. [15A NCAC 02B .0200, 02L .0I00]
3. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for storage and treatment units permitted under 15A NCAC 02H .0200 shall be as
follows (all distances in feet):
L Any habitable residence or place of public assembly under separate ownership: 100
ii. Any private or public water supply source: 100
iii. Surface waters: 50
iv_ Any well with the exception of a Division approved groundwater monitoring well: 100
v. Any property line: 50
(15A NCAC 02H .02190)]
III. OPERATION AND MAINTENANCE REQUIREMENTS
The facilities shall be properly maintained and operated at all times. The facilities shall be effectively
maintained and operated as a non -discharge system to prevent the discharge of any wastewater
resulting from the operation of this facility. The Permittee shall maintain an Operation and
Maintenance Plan, which at a minimum shall include operational functions, maintenance schedules,
safety measures and a spill response plan. [1SA NCAC 02T .1007]
Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the
Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or
more certified operator(s) as back-up ORC(s)_ The ORC or their back-up shall visit the facilities in
accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the
previously cited rules. [ISA NCAC 02T .0117]
3. Public access to the wastewater treatment facilities and closed -loop recycle system shall be
prohibited. [15A NCAC 02T .1000(a)(1)]
4. The residuals generated from the wastewater treatment facilities shall be dispersed or utilized in
accordance with 15A NCAC 02T .I 100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .1008. [l 5A NCAC 02T .100&, 4Z.T .1100]
WQ0006060 Version 4.0 Shell Version 150101 Page 2 of 5

Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited. [15A NCAC 02T .0108(b)(1)]
IV. MONITORING AND REPORTING REQUIREMENTS
1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water
analyses) necessary to ensure groundwater and surface water protection shall be established, and an
acceptable sampling reporting schedule shall be followed. [15A NCAC 02T .0108(c)]
2. A Division certified laboratory shall conduct all laboratory analyses for the required effluent,
groundwater or surface water parameters. [15A NCAC 02H .0800]
A record shall be maintained of all residuals removed from this facility. This record shall be
maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request. At a minimum, this record shall include:
a. Name of the residuals hauler;
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed.
[15A NCAC 02T .0108(b)(1)]
4. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone number (704)
663-1699, as soon as possible, but in no case more than 24 hours, or on the next working day
following the occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is
abnormal in quantity or characteristic, including the known passage of a hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]_
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five days following first knowledge of the occurrence. This report shall outline the actions taken or
proposed to be taken to ensure the problem does not recur. [15A NCAC 02T .0105(l), 02T
.0108(b)(1)]
WQ0006060 Vers" 4.0 Shel#Version 150101 Page 3 of 5

V.
The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and recycle facilities. [ 15A NCAC. 02T .0108(b)]
2. The Permittee or their designee shall inspect the wastewater treatment and recycle facilities to prevent
malfunctions, facility deterioration and operator errors resulting in discharges, which may cause the
release of wastes to the environment, a threat to human health or a public nuisance. The Permittee
shall maintain an inspection log that includes, at a minimum, the date and time of inspection,
observations made, and any maintenance, repairs, or corrective actions taken. The Permittee shall
maintain this inspection log for a period of five years from the date of the inspection, and this log
shall be made available to the Division upon request. [15A NCAC 02T .0108(b)]
3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the wastewater treatment and recycle facilities
permitted herein at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records required to be maintained under the terms and conditions of this
permit, and may collect groundwater, surface water or leachate samples. [G.S. 143-21.5.3(a)(2)]
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statutes 143-
215.6A to 143-215.6C. [G.S. 143-215.6A to 143-215.6C]
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with
the conditions of this permit, the Division approved plans and specifications, and other supporting
documentation. [15A NCAC 02T .0110]
3. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, Division approved plans and specifications, and other supporting documentation. No
variances to applicable rules governing the construction or operation of the permitted facilities are
granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T
.0105(n). [G.S.143-21.5.1]
4. The issuance of this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies
(e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules
in 15A NCAC 02B _0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4
and under General Permit NCGOI0000; any requirements pertaining to wetlands under 15A NCAC
02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of
the General Statutes. [15A NCAC 02T .0105(c)(6)]
In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner_ [15ANCAC
02T .0104]
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein. [I5A NCAC 02T .0108(b)(1)]
7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority. [15A NCAC 02T
.0105U)]
WQ0006060 Version 4.0 Shell Version 150101 Page 4 of 5

8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division
Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. [ISA NCAC 02T
.0110]
9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein
shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). [15A
NCAC 02T .0120]
10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to
pay the annual fee accordingly shall be cause for the Division to revoke this permit. [15A NCAC 02T
.0I 05(e)(3)]
Permit issued this the 30`h day of January 2015
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT CO1V1MISSION
,r S, j/ ay ZAmerman, Acting Director
11
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0006060
WQ0006060 Version 4.0 Shell Version 150101 Page 5 of 5

Figure 1 — Aerial Ma
WQ0006060
6601 Lakeview Rd., Charlotte, NC 28269
Gerdau A.meristeel US, Inc.
Latitude: 35.341038'
Charlotte Steel Mill
Longitude:-80.826899'
2483
r
t
•w
.�arlottd.'Clltil�S .I'll kll
FR i,
l
y'
yr
r
CL
iF2T
-r
S
Js
115
e •

Figure 2 — Directional Map
WQ0006060
6601 Lakeview Rd., Charlotte, NC 28269
Gerdau Arneristeel US, Inc.
Latitude: 35.341038'
Charlotte Steel Mill
Longitude: -80.826899'
�€
a,
Q'
a
fari�nm��17 Pk•ny �
'�'r�rta;� ��
115
V.
TI
zl
'
1
T
V
!E�
A L i
1
zl
�
Y Fyn
N
1' Y�
r�Hickor/
Tavern Yf
z4p4
t ►1.1Jr;
�1� '� } •4J
Dvy
Carolina Cat
r.
In.
t
Sports Connection ■
1151 �
I
(�
?485
ti
f
(�24j
2A85
c�
wv-
��' •i777f. ��31] Sr C�14'ff
ate. r.
Y
2485
Oft "
OF
;.200 m
■ Great €]erne Used
-- ___..__
-1015 s7ogta -hlso 9s:a W-715 vaogle -?erms of L;' ,-