NCS000621_Application_20241107

A■ U C C3q 6776 t n, H 2Y 92
■ 7 Lexington,NC 27292
LEXINGTON PO Box687
Lexington,NC 27293
November 5, 2024
d
Brianna Younger
Industrial Individual Permits CoordinatorCj
s �C)"
Stormwater Permitting Program e�a
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLI+ OF
1612 Mail Service Center
Raleigh, NC 27699-1612
Q
RE: NPDES Industrial Individual Stormtivater Permit Application
Nucor Steel Lexington
Dear Brianna:
Nucor Steel Lexington (NSLX) is currently constructing a greenfield, steel micro mill at 6776 E
US Hwy 64, Lexington, Davidson County, North Carolina. Construction of the facility is
planned to be completed in April 2025 and industrial activities are anticipated to commence
shortly thereafter.
NSLX is submitting this application for coverage under an initial individual permit for industrial
stormwater. The attached application package includes the required application forms (EPA
Form 1 and EPA Form 2F) and additional supplemental information to support the completed
forms. The application fee of$1,200 is also included. An electronic copy of the application is
being submitted via email to Brianna Young and Mike Lawyer to facilitate processing. Please
contact Matt Way, Environmental Manager, at 903-241-61 l6 or [e-mail], with any
questions regarding the submittal.
Sincerely,
NUCOR STEEL LEXINGTON
/)�L. z —
Mike Hess
VP and General Manager
Attachments
cc: Mike Lawyer, NC DEQ

NPDES STORMWATER APPLICATION
Initial Individual Industrial Permit
ICI LJ C O R®
LEXINGTON
Nucor Steel / Lexington
Prepared By:
TRINITY CONSULTANTS
325 Arlington Ave
Suite 500
Charlotte, NC
704-553-7747
November 2024
Project 243402.0134
Tr i n i t
Consultants

TABLE OF CONTENTS
1. INTRODUCTION 1-1
2. EPA FORM 1 2-1
2.1 Supplemental Information........................................................................................ 2-2
2.1.1 Item 6.1: Existing Environmental Permits..................................................................2-2
2.1.2 Item 7.1: Map ........................................................................................................2-2
2.1.3 Item 9.2: Coaling Water Intake Structures.................................................................2-2
3. EPA FORM 2F 3-3
3.1 Supplemental Information........................................................................................3-4
3.1.1 Item 1.1: Outfall Location........................................................................................3-4
3.1.2 Item 3.1: Site Drainage Map ....................................................................................3-4
3.1.3 Section 4: Pollutant Sources.....................................................................................3-4
APPENDIX A. POLLUTION PREVENTION &SCAP MANAGEMENT PLAN A-1
Nucor Steel Lexington/ Initial Individual NDPES Stormwater Application
Trinity Consultants

1. INTRODUCTION
Nucor Steel Lexington (NSLX) is currently constructing a greenfield, steel micro mill at 6776 E US Hwy 64,
Lexington, Davidson County, North Carolina. This site was previously undeveloped prior to the
commissioning of NSLX. Construction of the facility is planned to be completed in April 2025 and industrial
activities exposed to stormwater are anticipated to commence shortly thereafter.
Operations at NSLX will be classified under Standard Industry Classification Code 3312 ("Blast Furnaces and
Steel Mills'). NSLX reviewed the Industrial General Permits available under the National Pollutant Discharge
Elimination System (NPDES) Industrial Stormwater Program and none of the current general permits cover
this SIC code. Additionally, Nucor facility located in Cofield, North Carolina (Nucor Steel — Hertford) that
operates under the same SIC code is covered under the Individual Industrial Permit program (Permit No.
NCS000379). Therefore, Nucor is submitting this application to receive authorization to discharge industrial
stormwater under the Individual Industrial Permit program.
Nucor Steel Lexington/ Initial Individual NDPES Stormwater Application
Trinity Consultants 1-1

2. EPA FORM 1
Nucor Steel Lexington/Initial Individual NDPES Storrnwater Application
Trinity Consultants 2-1

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
110071355382 New Facility Nucor Steel Lexington
Expires 0713112026
Farm U.S.Environmental Protection Agency
' \"EPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTION • •D r AND
1.1 Applicants Not Required to Submit Form 1
1.1.1 Is the facility a new or existing publicly owned 1.1.2 Is the facility a slud e-onl facility(i.e.,a facility
treatment works or has your permitting authority that does not discharge wastewater to surface
directed you to submit Form 2A? waters)?
If yes, STOP.Do NOT complete 0 No If yes, STOP.Do NOT complete 0 No
Form 1,Complete Form 2A.If the Form 1,Complete Form 2S.
facility is also a treatment works
treating domestic sewage,you
must also complete Form 2S.
m 1_2 Applicants Required to Submit Form i
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
o production facility currently discharging process wastewater?
z 0 Yes 4 Complete Form 1 and 0 No ❑ Yes 4 Complete Form 0 No
cc Form 2B. 1 and Form 2C.
co
1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
❑ Yes 4 Complete Form 1 and 0 No ❑ Yes i Complete Form 1 0 No
Form 2D. and Form 2E.
1.2.5 Is the facility a new or existing facility whose 1.2.6 Is the facility a new or existing treatment works
discharge is composed entirely of stormwater treating domestic sewage that discharges
associated with industrial activity or whose wastewater to surface waters?
discharge is composed of both stormwater and non-
stormwater?
0 Yes 4 Complete Form 1 and 0 No ❑ Yes—>Complete Form 1, ✓❑ No
Form 2F unless Form 2S,and
exempted by 40 CFR any other
122.26(b)(14)(x)or applicable forms,
(b)(15). as directed by
your permitting
authari .
SECTION
ADDRESS, • • r
2-11 Facility Name
0
ie Nucor Steel Lexington
G]
2.2 EPA Identification Number
fO 110071355382
N
3— Facility Contact
a Name(first and last) Title Phone number
Matt Way Environmental Manager [phone]
d
Email address
E
Z [e-mail]
EPA Form 3510-1 Page 1

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
1100713 55382 New Facility Nucor Steel Lexington Expires 07/3112026
2_4 Facility Mailing Address
Street or P.O.box
PO Box 687
City or town State ZIP code
Lexington North Carolina 27293
Facility Location
c Street,route number,or other specific identifier
Q V 6776 E US Hwy 64
o County name County code(if known)
v Davidson
City or town State ZIP code
Lexington North Carolina 27292
SECTION 3.SIC rr NAICS CODESr
3_1 SIC Code(s) Description(optional)
3312 Blast Furnaces And Steel Mills
a�
u
0
U
U
z 3,2 NAICS Code(s) Description(optional)
1=
m U 331111 Iron and Steel Mills
SECTIONOPERATOR INFORMATION(40
441 Name of Operator
Nucor Steel Lexington
4_2 Is the name you listed in Item 4.1 also the owner?
ro
a
❑ Yes ❑ N o
4.3 Operator Status
❑ Public—federal ❑ Public—state ❑ Other public(specify)
o © Private ❑ Other(specify)
4.44 L(903)
ne Number of Operator
Z41-6116
EPA Form 3510-1 Page 2

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
New Facility New Facility Nucor Steel Lexington Expires 0713112026
4.5 Operator Address
g Sireet or P.O.Box
y
o 6776 E US Hwy 64
_ City or town State ZIP code
dD
V Lexington North Carolina 27292
oEmail address of operator
[e-mail]
SECTIO N 5.IND IAN LAND
a 5-1 Is the facility located on Indian Land?
G
—J ❑ Yes ❑✓ N o
SECTION 6.EXISTING ••
6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
d ❑ NPDES(discharges to © RCRA(hazardous wastes) ❑ UIC(underground injection of
surface water) fluids)
7 E
NCGO10000 NCC223567 NCR000181479
L+a 0 PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
c 10754ROO 10754ROO
'w
w ElOcean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) © Other(specify)
See supplemental information
SECTION
'-1 Have you attached a topographic map containing all required information to this application?(See instructions for
R specific requirements.)
✓❑ Yes ❑ CAFO--Nat Applicable(See requirements in Form 2B,)
SECTIONOF r
8-1 Describe the nature of your business.
Nucor Steel Lexington(NSLX)is currently constructing a steel micro mill at a greenfield site in Lexington,North
u, Carolina in Davidson County.Discharges from NSLX to a P0TVV(e.g.,Hamby Creek W1NTP)are subject to effluent
limitation guidelines(ELGs)under the"Iron and Steel Manufacturing"point source category(40 CFR 420,Subparts D,
F,and G).Direct industrial stormwater discharges are not addressed in these El-Gs.The facility will manufacture steel
ca
T products from scrap steel,home scrap,and scrap substitutes.Manufacturing operations will consist of electric arc
d furnace(€AF)melting and refining operations;ladle metallurgy furnace(LMF)operations;casting,rolling,and
R
finishing operations;raw and product material handling;and,other associated equipment to produce steel products
Z and support operations.The steel micro mill will operate 24 hours per day and 7 days per week with a maximum
annual steel production rate of 515,000 tons per year(tpy),with a short term,maximum hourly rate of 80 tons per
hour(tph).
SECTIONi•
;9.2
Does your facility use cooling water?
L a ❑ Yes ❑ No 4 SKIP to Item 10.1.
UIdentify the source of cooling water,(Note that facililies that use a cooling water intake structure as described at
240 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
NPDES permitting authority to determine what specific information needs to be submitted and when.)
o Y
0 � See supplemental information.
EPA Form 3510-1 Page 3

EPA Identification Number NPDES Permit Number Facility Name OMS No.2040-0004
11007135S 2 New Facility Nucor Steel Lexington Expires 07012026
SECTIONY
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
Cr ❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
CD
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
> ❑r Not applicable
SECTION • r AND
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑ Section 1:Activities Requiring an NPDES ❑ wl attachments
Permit
❑ Section 2:Name,Mailing Address,and ❑ wl attachments
Location
0 Section 3:SIC Codes ❑ wl attachments
Section 4:Operator Information ❑ wl attachments
❑ Section 5:Indian Land ❑ wl attachments
Section 6: Existing Environmental Permits ❑ wl attachments
E ❑ wl additional
43 0 Section 7: Map ❑ wl topographic map
attachments
Cn
o ❑ Section 8: Nature of Business [Z1 wl attachments
w
✓❑ Section 9:Cooling Water Intake Structures ❑ wl attachments
d
� ❑ Section 10.:Variance Requests ❑ wl attachments
M ❑ Section 11: Checklist and Certification ❑ wl attachments
Statement
t l 1•2 Provide the following certification.(See instructions to determine the appropriate person to sign the application.)
V
Certification Statement
l certify under penalty of taw that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly
responsible for gathering the information,the information submitted is,to the best of my knowledge and belief,true,
accurate,and complete.l am aware that there are significant penalties for submitting false information,including the
possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Mike Hess VP and General Manager
Signature Date signed/
s /!
EPA Form 3510-1 Page 4

2.1 Supplemental Information
The following sections address additional information to supplement the information included in EPA Form 1.
2.1.1 Item 6.1: Existing Environmental Permits
Other Environmental Permits Include:
► Industrial User Pretreatment Permit(IUP No. 0034) for discharging treated wastewater to the City of
Thomasville, Hamby Creek WWTP (NPDES No. NC0024112)
► Temporary Domestic Wastewater Pump & Haul Permit No. WQ0045346 - expires November 15, 2024
• A final permit has been issued, Pump & Haul Permit No. WQ0045916.
2.1.2 Item 7.1: Map
The required USGS topographic map (Figure 1) is provided on the next page.
2.1.3 Item 9.2: Cooling Water Intake Structures
NSLX will receive cooling water from Davidson Water. Cooling water is fully contained within the facility's
process and will be routed to the proposed wastewater treatment process. All cooling water and process
wastewater will be discharged to the City of Thomasville, Hamby Creek WWTP (NPDES No. NC0024112).
NSLX received authorization for this discharge under Industrial User Pretreatment Permit (IUP No. 0034)
issued September 2024.
Nucor Steel Lexington J Initial Individual NDPES Stormwater Application
Trinity Consultants 2-2

�•
CALINDA DR FOi1751N
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F�
CRfFX DR £A
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Outfall 00 it
Qutfall 004, ®pond E r \ sr Vtr,lscr
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O utfal1-001,1 Outfall d03�,
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Hazardous Waste Q r
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Pori d G
Outfall 002,
Outfall 008, Pond Br rya
fo Pond"H .&
-,ba Outfall 006,
Pond F
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v
. . WbODARD RD
•Y/,YL fY FARM RD
Discharge to 4r.NBLACXRD
Flat Swamp Creek 4 =
,.;
-
�aOIOOM1town 1
li:�py DR \ ll
-n Source:
USGS Topographic Quadrangles 7.5 Minute Series
Final Drawing - For Review Purposes Only Lexington East, NC: fair Grove,NC
Davidson Legend
County _
y� �� t��f►��l�3��it`• a�•+ Property Line
'mow'! VAR
e♦%'190-,`lraN Q Hazardous Waste Storage Area /*0 1.000 2.000
NORTH lam, ® Outfall Location FEET
CAROLINA Discharge Route V=2.00OFEET
1:24.000
NUCOR STEEL LEXINGTON DRAWN BY L WLSON
LEXINGTON, NORTH CAROLINA APPROVED BY KWINDHAM
Tri n ity� MICRO MILL FACILITY
PROJECT N0: 243402.0147
Consultants FIGURE 1 FILE NO. USGS Map
USGS MAP
DATE OCTOBER 2024
. r SteeI%Lewnglon%NF0ES 20245GIS.aprx

3. EPA FORM 2F
Nucor Steel Lexington/ Initial Individual NDPES Stormwater Application
Trinity Consultants 3-3

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-OOD4
110071355382 New Facility Nucor Steel Lexington Expires 07/3112026
Form U.S Environmental Protection Agency
2F \=,EPA Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
LOCATION t
1.1 Provide information on each of the faalit s outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
001 Unnamed Tributary 35.776207 -80.136395
a
u 002 Unnamed Tributary 35.770447 -80.132073
0
003 Unnamed Tributary 35.777587 -80.132609
Q 004 Unnamed Tributary 35.779627 -80.134886
005 Unnamed Tributary 35.780854 -80.133815
006 Unnamed Tributary 35.770280 -80.130045
IMPROVEMENTSSECTION 2. I
21 Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing,upgrading,or operating wastewater treatment equipment or practices or any other environmental
programs that could affect the discharges described in this application?
❑ Yes ❑ No 4 SKIP to Section 3.
2— Briefly identify each applicable project in the table below.
Final Compliance
Brief identification and Affected Outfalls Source(s)of Discharge Dates
Description of Project (list outfalt numbers)
Required Projected
a,
m
'a
C.
a
E
2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental
projects that may affect your discharges)that you now have underway or planned?(optional item)
❑ Yes ❑ No
EPA Form 3510-21' Page 1

EPA Identification Number NPDES Permit Number Facility Name 0MG No.2040-0004
110071355382 New Facility Nucor Steel Lexington Expires 07/31/2026
Form U.S Environmental Protection Agency
2F 4 EPA Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATIONr
1A Provide information on each of the facility's outfalls in the table below
Autfall Receiving Water Name Latitude Longitude
Number
007 Unnamed Tributary 35.773371 -80,130661
c
0
.4 008 Unnamed Tributary 35.770532 -80,133023
U
O
J
IO
O
SECTION '! I
2_1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for
constructing,upgrading,or operating wastewater treatment equipment or practices or any other environmental
programs that could affect the discharges described in this application?
❑ Yes ❑✓ No 4 SKIP to Section 3.
Briefly identify each applicable project in the table below.
Final Compliance
Brief identification and Affected Outfalls Dates
Description of Project (list outfall numbers) 5ource(sj of Discharge
Required Projected
C
�I
E
}
a
a
E
2_3 Have you attached sheets describing any additional water pollution control programs(or other environmental
projects that may affect your discharges)that you now have underway or planned?(optional item)
❑ Yes ❑ No
EPA Form 3510-2F Page 1

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
Expires 07i3112026
110071355392 New Facility Nucor Steel Lexineton
SECTION 3.SITE rt r
0 L1 Have you attached a site drainage map containing all required information to this application?(See instructions for
B to C specific guidance.)
o Yes
SECTION 4.POLLUTANT SOURCESr
4_1 Provide information on the facility's pollutant sources in the table below.
Outfall Impervious SurlaceArea Total Surface Area Drained
Number (within a mile radius of the facility) (within a mile radius of the facility)
specify units specify units
OOI 0 19
acres 23. acres
specify units specify units
002 3.11 20.73
acres acres
specify units specify units
003 0.94 18.85
acres acres
specify units specify units
004 0.79 acres 9.87 acres
specify units specify units
005 1.20 acres 20.34 acres
specify units specify units
006 0 acres 6.31 acres
4_2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
v7 Please see attached supplemental information.
ca'.+
0
c
w
0
a
4_3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants
in stormwater runoff. See instructions forspecificguidance.)
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-1
list
001 Sedimentation in Retention Pond A.Non-structural BMPs(see narrative). 1-U
002 Sedimentation in Retention Pond B.Non-structural BMPs(see narrative). 1-U
003 Sedimentation in Retention Pond C.Non-structural BMPs(see narrative). 1-U
004 Sedimentation in Retention Pond D.Non-structural BMPs(see narrative). 1-U
005 Sedimentation in Retention Pond E.Non-structural BMPs(see narrative). 1-U
006 Sedimentation in Retention Pond F.Non-structural BMPs(see narrative). 1-U1
EPA Form 3510-2F Page 2

EPA Identification Number NPDES Permit Number Facility Name OFAB No.204041004
110071355392 New Facility Nucor Steel Lexington Expires 0713112026
SECTION1 r
W 1_1 Have you attached a site drainage map containing all required information to this application?(See instructions for
an
2 M C specific guidance.)
U)
Q 0 Yes
SECTIONPOLLUTANT SOURCESr
4_1 Provide information on the facility's pollutant sources in the table below.
Outfall Impervious Surface Area Total Surface Area Drained
Number (within a mile radius al the facility) (within a mile radius of the facility)
specify units specify units
007 0.56 18.74
acres acres
specify units specify units
308 0 3.65
acres acres
specify units specify units
specify units specify units
specify units specify units
specify units specify units
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
y Please see attached supplemental information.
0
to
c
ti
0
IL
4_3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants
in stormwater runoff. See instructions forspecificguidance.)
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-9
list
007 Sedimentation in Retention Pond G.Non-structural BMPs(see narrative). 1-lJ
008 Sedimentation in Retention Pond H.Non-structural BMPs(see narrative). 1-U
EPA Form 3510-2F Page 2

EPA Identification Number NPOES Permit Number FaciI4 Name OMB No.2040-0004
11C071355382 New Facility Nucor Steel Lexington Expires 07/3112026
SECTION • •• i
—� Provide the following certification. (See instructions to determine the appropriate person to sign the application.)
I certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, 1 certify that the outfalls identified as having non-stormwater
discharges are described in either an accompanying NPDES Form 2C,2D, or 2E application.
Name(print or type first and last name) Official title
Mike Hess VP and General Manager
Signature Date sign /
.�f / Z
Provide the testing information requested in the table below. �J /
0 Outfall Onsite Drainage Points
`m Number Description of Testing Method Used Date(s)of Testing Directly Observed
During Test
3:
E 001 Review of civil drawings used for construction 10/17/2024 Not applicable
v
C
O
a 002 Review of civil drawings used for construction 10/17/2024 Not applicable
003 Review of civil drawings used for construction 10/17/2024 Not applicable
004 Review of civil drawings used for construction 10/17/2024 Not applicable
005 Review of civil drawings used for construction 10/17/2024 Not applicable
006 Review of civil drawings used for construction 10/17/2024 Not applicable
SECTIONOR 1 1
W 6__1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
.a
0
This is a previously undeveloped greenfield facility.NSLX is not aware of any significant leaks or spills in the last
Y three years.
a
m
U
_Q1
SECTION
DISCHARGE INFORMATION1
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
com lete.Not all applicants need to complete each table.
7_1 Is this a new source or new discharge?
Yes 4 See instructions regarding submission of No 4 See instructions regarding submission of
= estimated data. actual data.
E) Tables A,B,C, and D
7_2 Have you completed Table A for each outfall?
0 Yes
EPA Form 3510-217 Page 3

EPA Identification Number NPDES Permit Number Fac14 Name OMB No.2040-0004
110071355382 New Facility Nucor Steel Lexington Expires 07131/2026
SECTION •N STORMWATER 1 1
—1 Provide the following certification. (See instructions to determine the appropriate person to sign the application.)
I certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, I certify that the outfalls identified as having non-stormwater
discharges are described in either an accompanying NPDES Form 2C, 2D, or 2E application.
Name(print or tyMrj and last narr�ej Official title
{see certification on previous page) 67A4Signature Date si
Y! I ! J
C7 1
Qf
s 5.2 Provide the testing information requested in the table below.
u
n Outfall Onsite Drainage Points
Number Description of Testing Method Used Date(s)of Testing Directly Observed
During Test
3
0
007 Review of civil drawings used for construction 10/17/2024 Not applicable
c
0
z 008 Review of civil drawings used for construction 10/17/2024 Not applicable
SECTIONOR 1 •
6�1 Describe any signifitcant leaks or spills of toxic or hazardous pollutants in the last three years.
`o
This is a previously undeveloped greenfield facility.NSLX is not aware of any significant leaks or spills in the last
Y three years.
m
m
J
c
tO
U
_a1
N7
SECTIONDISCHARGE INFORMATION1
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables you must
a compfete.Not all applicants need to complete each table.
7.1 Is this a new source or new discharge?
Yes 4 See instructions regarding submission of � No i See instructions regarding submission of
estimated data. actual data.
rn Tables A,B,C,and D
5 ? Have you completed Table A for each ouffall?
M
0 El Yes
EPA Farm 3510.21' Page 3

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
110071355 3 8 2 New Facility Nucor Steel Lexington Expires 07/3112026
7.3 Is the facility subject to an effluent limitation guideline(ELG)or effluent limitations in an NPDES permit for its
process wastewater?
❑✓ Yes ❑ No 4 SKIP to Item 7.5.
7.44 Have you completed Table B by providing quantitative data for those pollutants that are(1)limited either directly or
indirectly in an ELG and/or(2) subject to effluent limitations in an NPDES permit for the facility's process
wastewater?
❑� Yes
7.5 Do you know or have reason to believe any pollutants in Exhibit 217-2 are present in the discharge?
❑� Yes ❑ No 4 SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know cr have reason to believe are present in the discharge
and provided quantitative data or an explanation for those pollutants in Table C?
❑✓ Yes
7_7 Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.18. ❑� No
7_8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑� Yes ElNo 4SKIP to Item 7.10.
0
c7_9 Have you listed all pollutants in Exhibit 2F-3 that you know or have reason to believe are present in the discharge in
Table C?
❑� Yes
m
710 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
c ❑ Yes ❑ No 4 SKIP to Item 7.12
7.11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged
in concentrations of 10 ppb or greater?
❑✓ Yes
7.12 Do you expect acrolein, acrylonitrile,2,4-dinitrophenol,or 2 methyl-4,6-dinitrophenol to be discharged in
concentrations of 100 ppb or greater?
❑ Yes ❑✓ No 4 SKIP to Item 7.14.
7.13 Have you provided quantitative data in Table C for the pollutants identified in Item 7.12 that you expect to be
discharged in concentrations of 100 ppb or greater?
Q Yes
7.14 Have you provided quantitative data or an explanation in Table C for pollutants you expect to be present in the
discharge at concentrations less than 10 ppb(or less than 100 ppb for the pollutants identified in Item 7.12)?
❑� Yes
7.15 Do you know or have reason to believe any pollutants in Exhibit 2F-4 are present in the discharge?
❑ Yes © No 4 SKIP to Item 7.17.
EPA Forth 3510-2F Page 4

EPA Identification Number NPDES Permit Number Fadity Name OM8 No.2040-0004
110071355382 New Facility Nucor Steel Lexington Expires 07/31/2026
7.16 Have you listed pollutants in Exhibit 2F-4 that you know or believe to be present in the discharge and provided an
explanation in Table C?
❑ Yes
7.17 Have you provided information for the storm event(s)sampled in Table D?
a
[]✓ Yes
0
t�
c Used or Manufactured Toxics
7.18 Is any pollutant listed on Exhibits 2F-2 through 2F--4 a substance or a component of a substance used or
o manufactured as an intermediate or final product or byproduct?
❑ Yes ❑✓ No 4 SKIP to Section S.
U 7.19 List the pollutants below,including TCDD if applicable.Attach additional sheets,if necessary.
_fn
i. 4. 7.
2. 5. 8.
r3. 6. 9.
SECTION • • • i
81 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made
on any of your discharges or on a receiving water in relation to your discharge within the last three years?
0
_ ❑ Yes ❑ No 4 SKIP to Section 9.
$_? Identify the tests and their purposes below.
Q Testis) Purpose of Test(s) Submitted to NPt?ES pate Submitted
x Permitting Authority?
a
~ ❑ Yes ❑ No
0
o ❑ Yes ❑ No
m
❑ Yes ❑ No
SECTION • •• •
911 Were any of the analyses reported in Section 7(in Tables A through C)performed by a contract laboratory or
consulting firm?
❑ Yes ❑� No 4 SKIP to Section 10.
`0 9_2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number I Laboratory Number 2 Laboratory Number 3
Name of laboratorylfirm
c
Laboratory address
0
Phone number
t�
Pollutant(s)analyzed
EPA Form 3510-2F Page 5

EPA Ideniirication Number NPOES Permit Number Facility Name OMB No.2040-0OO4
1100A355 382 New Facility Nucor Steel Lexington Expires 07f31r2026
SECTIONi CHECKLIST AND CERTIFICATION
iq.1 In Column 1 below,mark the sections of Form 2F that you have completed and are submitting with your application.
For each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all aoolicants are required to complete all sections or provide attachments.
Column t Column 2
❑✓ Section 1 ❑ wl attachments(e.g., responses for additional outfalls)
❑✓ Section 2 0 wl attachments
Section 3 0 wl site drainage map
Section 4 ✓❑ wl attachments
Section 5 wl attachments
❑� Section 6 ❑ wl attachments
❑✓ Section 7 ✓❑ Table A ❑ wl small business exemption request
r B Table�„ ❑ ❑ wl analytical results as an attachment
M ❑ Table C ❑ Table D
U
c�
❑✓ Section 8 ❑ wi attachments
❑� Section 9 ❑ wl attachments(e.g., responses for additional contact laboratories or firms)
d
❑ Section 10
U 10.2 Provide the following certification.(See instructions to determine the appropriate person to sign the application.)
Certification Statement
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted.Based on my inquiry of the person or persons who manage the system or those persons directly responsible
for gathering the information, the information submitted is,to the best of my knowledge and belief,true, accurate,and
complete.l am aware that there are significant penalties for submitting false information,including the possibility of fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Mike Hess VP and General Manager
Signature Datelsig ed
/ 2Y
EPA Form 3510-2F Page 6

EPA Identification Number NPDES Permit Number Facillty Name Outfall Number OMB No.2040-0004
110071355382 New Facility Nucor Steel Lexington 001 through 008 Expires 07131/2026
TABLE A.CONVENTIONAL AND NON CONVENTIONAL1
You must provide the results of at least one ana sis for every pollutant in this table.Complete one table for each outfall. See instructions for additional details and re uirements.
Maximum Daily Discharge Average Daily Discharge Source of `.
(spedfy unb) (specify unfts) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new scurcelnew
During First Flow-Welghted During First Flo*Welghted Events Sampled dischargers only;use
30 Minutes Composite 301tiautea Composite aeAaa t�t_ gar
1. Oil and grease Not applicable Not applicable
2. Biochemical oxygen demand(BOD5) Not applicable Not applicable
3. Chemical oxygen demand(COD) Not applicable Not applicable
4. Total suspended solids(TSS) Not applicable Not applicable
5. Total phosphorus Not applicable Not applicable
6. Total Neldahl nitrogen(TKN) Not applicable Not applicable
7. Total nitrogen(as N) Not applicable Not applicable
pH(minimum) Not applicable Not applicable
8.
pH(ma)dmum) Not applicable Not applicable
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I,Subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F Page 7

This:page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number OMB No.2040-0004
110071355382 New Facility Nucor Steel Lexington 001 through 008 Expires 0713112026
• • • 1 012411 • '• 1 . • 1 1
List each pollutant that is limited in an effluent limitation guideline(ELG)that the facility is subject to or any pollutant listed in the facility's NPDES permit for its process wastewater(if the
facility is operating under an existing NPDES permit).Complete one table for each cutfall.See the instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Sou rce of
Pollutant and CAS Number $ ` units (spech unfts Number of Storm Information
Grab Sample Taken Grab Sample Taken , (nett'sourcelnew
(If available) During First Flow•Welghted During Fist Row-Weighted I I` Events Sampled dischargers(newsou e/n use
30 Minutes Composite 30 Minutes Composite codes In Instructions)
Cadmium Not applicable Not applicable 5(IUP No.0034)
Chromium Not applicable Not applicable 5(IUP No.0034)
Cooper Not applicable Not applicable 5(IUP No.0034)
Cyanide Not applicable Not applicable 5(IUP No.0034)
Mercury Not applicable Not applicable 5(IUP No.0034)
Nickel Not applicable Not applicable 5(IUP No.0034)
Oil&Grease Not applicable Not applicable 5(IUP No.0034)
Selenium Not applicable Not applicable 5(I UP No.0034)
Silver Not applicable Not applicable 5(IUP No.0034)
t Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I, Subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F Page 9

This`page intentionally left blank

EPA Identification Number NPDES Permit Number Facility Name Outfall Number OMB No.2040-0004
110071355382 New Facility Nucor Steel Lexington 001 through 008 Expires 07/3112026
TABLEPOLLUTANTS, •It I ASBESTOS (40 •I 1
List each pollutant shown in Exhibits 2F-2,2F-3,and 2F-4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(spec units (Spec[ units information
and CAS Number o Number of Storm
Grab Sample Taken Grab Sample Taken (new sourcelnew
(If avallable) During Flirst Flow-Weighted During Fltat Flo►i-Welghted 1, Events Sampled d�cliargers only;use
Composite Composite r
30 Minutes 30 Minutes _ codes In Instructions
Antimony,total Not applicable Not applicable 4
Arsenic,total Not applicable Not applicable 4
Beryllium,total Not applicable Not applicable 4
Cadmium,total Not applicable Not applicable 4
Copper,total Not applicable Not applicable 4
Lead,total Not applicable Not applicable 4
Mercury,total Not applicable Not applicable 4
Nickel,total Not applicable Not applicable 4
Selenium,total Not applicable Not applicable 4
Selenium,total Not applicable Not applicable 4
Thallium,total Not applicable Not applicable 4
Zinc,total Not applicable Not applicable 4
Phenols,total Not applicable Not applicable 4
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I,Subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-21' Page 11

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Fac@ity name OultaA Number OMB No.2040-0004
11D071355382 New Facility Nucor Steel Lexington 001 through 008 Expires 07/31/2026
1 •' •' • 1
Provide data for the storm event(s)that resulted in the ma)dmum daily discharges for the flow-weighted composite sample.
Number of Flours.Between
Total Rainfall During Maximum Flow Rate
Beginning of Stor Total Flow from Rain Event
Duration of Storm.Event. Storm Measured and
Date of Storm Event tin hours) StormEvent End of Previous Measurable Rain During Rain Event tin gallons orspedyhunits):
i tin Inches) Event on gpm or speclry units)
Not applicable Not applicable Not applicable Not applicable Not applicable
Provide a description of the method of flow measurement or estimate.
Not applicable
EPA Form 3510.2E Page 13

3.1 Supplemental Information
The following sections address additional information to supplement the information included in EPA Form
2F.
3.1.1 Item 1.1: Outfall Location
NSLX is designed such that all stormwaters will drain to one of eight stormwater retention ponds. The
facility follows an alphabetical naming system for these ponds, so the following table is provided for clarity
to align the anticipated outfall numbering system with the facility nomenclature.
Table 3-1. Complete Summary of Outfall Locations
Outrall Retention Receiving Water Name Latitude Longitude
Number Pond
001 A Unnamed Tributary of Flat 35.776207 -80.136395
Swamp Creek
002 B Unnamed Tributary of Flat 35.770447 1 -80,132073
Swamp Creek
003 C Unnamed Tributary of Flat 35.777587 -80.132609
Swamp Creek
004 D Unnamed Tributary of Flat 35.779627 -80.134886
Swamp Creek
005 E Unnamed Tributary of Flat 35.780854 -80.133815
Swamp Creek
006 F Unnamed Tributary of Flat 35.770280 -80.130045
Swamp Creek
007 G Unnamed Tributary of Flat 35.773371 -80.130661
Swamp Creek
008 H Unnamed Tributary of Flat 35.770532 -80.133023
Swamp Creek
3.1.2 Item 3.1: Site Drainage Map
The required site drainage map is provided at the end of this section and is comprised of three drawings:
► Figure 2: This map represents the anticipated location of industrial activities exposed to stormwater
across the property boundary. Impervious areas are also represented.
► Figure 3: This map represents the drainage areas, and the industrial activities exposed to stormwater for
Outfall Nos. 004-005 or Retention Ponds D and E. Impervious areas are also represented.
► Figure 4: This map represents the drainage areas, and the industrial activities exposed to stormwater for
Outfall Nos. 001-003 and 006-008 or Retention Ponds A through C and F through G. Impervious areas
are also represented.
3.1.3 Section 4: Pollutant Sources
3.1.3.1 Item 4.1:Narrative Description of the Facility's Significant Material
Impervious areas are represented on each of the provided maps comprising the representation of the site
drainage. Note, only"Type 1 Asphalt Pavement (Heavy Duty)"and "Type 2 Asphalt Pavement (Light Duty)
were considered as impervious as a conservative representation in this application.
Nucor Steel Lexington/Initial Individual NDPES Storrnwater Application
Trinity Consultants -

3.1.3.2 Items 4.2 and 4.3:Narrative Description of the Facility Significant Material and
Associated Treatment and Control Measures
3.1.3.2.1 Scrap Storage and Handling
Much of the raw material used to make the steel products will be recycled scrap iron and steel, home
scrap', and scrap substitutes2.The recycled material will be purchased and brought to NSLX via truck and
rail.This rail line, truck haul roads, and scrap unloading stations are in the drainage area of Retention Pond
A.The received scrap material may include turnings, shredded automobiles, structural and sheet metal, and
other pre-processed steel bundles intended for use at steel recycling facilities. Scrap will be unloaded and
stored inside the building in the covered scrap bay. However, a small stockpile of scrap may be stored in an
outside pile on the gravel pavement in front of the scrap bay. This stockpile is likely to be stored in the
drainage area of Retention Pond C.
Some scrap material is too large for processing, so manual gas-fired torch cutting of a small portion of the
scrap (mostly home scrap), will be necessary to break scrap pieces into manageable sizes. This will be done
in the designated scrap cutting areas inside the processing building or outside if material storage outside is
required. If conducted outdoors, this scrap cutting area will likely be in the drainage area of Retention Pond
A. Scrap that has been cut to size in the scrap cutting area will be hauled to the scrap bay inside the
building. Cranes and material handling equipment will transfer scrap material from the storage bay to the
electric arc furnace(EAF)which will be fed using a bucket charging system.These activities are conducted
indoors. NSLX will implement a scrap material management program to facilitate removal of mercury
switches and other mercury containing materials from the raw material before processing. A preliminary
draft Pollution Prevention and Scrap Management Plan is provided in Appendix A.
3.1.3.2.2 Raw Material Storage and Handling
NSLX will utilize various solid raw materials in the steelmaking process, including carbon (primarily as a
steel-reducing agent), lime or dolomite as a fluxing agent, and various alloys for metallurgical refining.
Incoming raw material will be received by truck and transferred into silos, received by truck and stored in
three-sided storage bins, or received in supersack bags.
NSLX will store carbon in two silos and fluxing agents in three silos. These silos will be in the drainage area
of Retention Pond C.The carbon and fluxing agents will be received via truck and pneumatically transferred
into the silos, controlled with bin vents. The carbon and fluxing agents will be pneumatically transferred
from the silos to the EAF and ladle metallurgy furnace(LMF) (located indoors)for refining as needed.
NSLX will store alloys in covered storage bins with three-sided enclosures located on a concrete pad. These
silos will be in the drainage area of Retention Pond C. The alloys will be transported to the facility via truck.
Material handling loaders will transfer the alloys from the storage bins to hoppers located inside the melt
shop building prior to being fed into the EAF and LMF, as needed.
NSLX will also receive raw materials (i.e., carbon, fluxing agents, and/or alloys) in large bags called
supersacks. These supersacks will be stored in a storage shed on a concrete pad in the drainage area of
Retention Pond B. Material handling loaders will transfer this material from the storage area to the melt
1 Home scrap is scrap metal generated at the Facility during the steelmaking process(e.g., rolling,cutting,etc.),which can be
recycled back into the steelmaking process.
z Scrap substitutes are high-iron content materials which can be used as replacements for ferrous scrap,such as direct
reduced iron(DRI), pig iron,or iron carbide.
Nucor Steel Lexington/Initial Individual NDPES Stormwater Application
Trinity Consultants 3-5

shop. When needed, the supersacks will be manually opened (i.e., cut open) inside and the contents
poured/dumped into hoppers near the EAF or LMF in the melt shop for introduction to the process. The
entrance to the melt shop will be in the drainage area for Retention Pond G.
3.1.3.2.3 Dust Collection and Hazardous Waste Storage and Disoosal
A direct evacuation control (DEC) system will capture the EAF emissions during melting and refining and
vent the emissions through a large duct to the melt shop baghouse. Emissions created when the EAF rocks
to fill a ladle(called"tapping/pouring"and "slagging') will be vented by the canopy hood to the melt shop
baghouse. The emissions not captured by the DEC will vent to the melt shop and be captured by the canopy
hood and vented to the baghouse.
Dust collected by the melt shop baghouse will be transferred to a dust storage silo, whose vent will be
controlled by a bin vent filter. The dust silo is located within a curbed building and the area is considered a
hazardous waste storage area. No additional treatment will be applied this dust prior to being shipped
offsite.The baghouse dust will initially be loaded into trucks for transport off-site until the railroad is
completed. At that point, the baghouse dust will be loaded into railcar. Standard operating procedure will
require the bay doors to be closed when loading activities are conducted. The ductwork to the baghouse,
the baghouse, and enclosed storage silo and rail/truck loading operation will be in the drainage area of
Retention Pond A.
3.1.3.2.4 Finished Product Storage
NSLX will store finished product(i.e., rebar) inside the building. Finished product is not planned to be stored
outside and will be shipped offsite via rail or truck.The rail/truck loading station will be located indoors.
Much of the rail line and haul roads for the finished product will be in the drainage area of Retention Pond
A.
3.1.3.2.5 Mill Services including Slag and Mill Scale Handling and Crushing and Vehicle
Maintenance. Cleaning, and Refueling
Mill service operations will be conducted by a third-party contractor and include slag processing and
maintenance support operations. All mill service operations will be in the drainage area of Retention Pond C.
Slag and Mill Scale Handling and Crushing
Slag, a product of the steelmaking process, is produced when fluxing agents are added to molten steel to
refine the steel to acceptable properties. Most of the slag produced at NSLX will be generated in the EAF,
and a smaller amount will be formed in the LMF. The EAF slag will be emptied into a slag pit below the
furnace to cool before being transferred to the slag processing area via mobile equipment. The LMF slag will
be formed when further refining is performed in the ladle. Once cooled, the ladle slag will be transferred to
the slag processing area via mobile equipment. Mill scale, another product of the steelmaking process, is an
iron oxide material that is formed when hot steel is oxidized by the air. Mill scale is generated at the caster
spray chamber and along the rolling mill and will also be present in contact cooling water. Mill scale will be
transferred from these generation areas including the wastewater treatment plant via mobile equipment to
the processing area. Industrial activities in the slag processing area/slag yard include slag and mill scale
handling, crushing, sorting, and storage. Finished slag aggregate and mill scale will be shipped to customers
by truck.
The slag processing area is located outdoors on a construction laydown stabilized area. Management of this
area will be maintained via regular inspections and good housekeeping practices
Nucor Steel Lexington/Initial Individual NAPES Stormwater Application
Trinity Consultants 3-6

Vehicle Maintenance, Cleaning,and Refueling
Equipment maintenance will also be conducted outdoors on a construction laydown stabilized area.Vehicle
cleaning will be conducted on a concrete wash pad with wash waters draining to an oil/water separator
(OWS) located underground. An outside contractor will dispose of the collected oil via truck. NSLX will
discharge water from the OWS to the City of Thomasville, Hamby Creek WWTP (NPDES No. NC0024112).
NSLX received authorization for this discharge under Industrial User Pretreatment Permit(IUP No. 0034).
Management of this area will be maintained via regular inspections and good housekeeping practices.
A mobile equipment refueling station comprised of one, aboveground, double-walled 1,000-gallon gasoline
storage tank and one aboveground, double-walled 3,000-gallon diesel fuel tank will also be in this area. The
tanks will be installed with overfill protection as required under 40 CFR 112. Personnel will conduct refueling
of mobile equipment and refilling of the storage tanks on a concrete pad with a berm and follow an
established procedure to minimize spills.
3.1.3.2.6 Wastewater Treatment Plant and Cooling Towers
Three cooling towers (a mix of contact cooling and non-contact cooling) will be used to remove the heat
absorbed by the cooling water system throughout the plant. Davison County will supply the makeup water.
It is anticipated that the city water will contain trace amounts of dissolved minerals. Cooling water and non-
g water blowdown will be discharged to the City of Thomasville, Hamby Creek WWTP (NPDES No.
NC0024112). NSLX received authorization for this discharge under Industrial User Pretreatment Permit(IUP
No. 0034).
Process wastewater will be treated via chlorination, solids separation, flow equalization, pH neutralization,
clarification and filtration as described in IUP No. 0034. Water treatment chemicals will be stored in bulk
storage tanks under a covered storage area open on four sides and hard piped to the wastewater treatment
plant and cooling towers. Storage tanks will be refilled via truck in accordance with an established procedure
to minimize spills. Drums and totes of treatment chemicals may also be delivered full and stored in the
water treatment chemical storage area. Treatment chemicals may be manually added to the cooling tower
as necessary. The wastewater treatment plant and cooling towers will be in the drainage area of Retention
Pond C although no process wastewater is expected to contact industrial stormwater such that the water
will discharge to this stormwater outfall.
3.1.3.2.7 Compressed Gas Storage
Compressed gas storage will be in the drainage area of Retention Pond C although this industrial activity is
not expected to introduce potential pollutants to industrial stormwater.The installed compressed gas tanks
will be new and free from rust.
3.1.3.2.8 Micro Mill Hydraulic Equipment and Emergency Generators
To support operations, NSLX will install up to two 2,000-kilowatt (kW) emergency generators and one 500
horsepower(hp) emergency fire pump engine. The emergency generators will be fueled by either natural
gas or diesel fuel, depending on the final engine selections. The emergency fire pump engine will be fueled
by natural gas. These engines are anticipated to be located outdoors. If a diesel-fired engine is selected,
NSLX will install an above-ground diesel storage tank with containment and overfill protection as required
under 40 CFR 112. Dispensing operation to fill the tank will be conducted via truck and in accordance with
an established procedure to minimize spills. Regular inspections of these units will be conducted in
accordance with NFPA requirements (as applicable)and manufacturer's recommendations. NSLX anticipates
the emergency generators and any associated diesel tanks will be in the drainage area of Retention Pond G.
Nucor Steel Lexington/Initial Individual NDPES Stormwater Application
Trinity Consultants 3-7

NSLX will use air compressors and hydraulic equipment to support operations in the micro mill. The
supporting hydraulic oil tanks will be stored along side the air compressor inside a designated room in the
processing building. Storage tanks will be refilled via truck from outside the building in accordance with an
established procedure to minimize spills.This building and hydraulic oil transfer location will be in the
drainage area for Retention Pond G.
Hydraulic oil/lubricant drum storage is anticipated to be in the Warehouse/Spare Parts building in a
designated storage area. All hydraulic oil is anticipated to be brought to the warehouse in full containers and
disposed of when empty.The warehouse will be in the drainage area for Retention Pond A.
3.1.3.2.9 Proposed Fabrication Shop and Laydown Area
NSLX plans to construct a proposed fabrication shop in the drainage area for Retention Pond E. This
fabrication shop is expected to be constructed after the construction of the micro mill facility. Finished
product will be transported from the Finished Goods warehouse at the micro mill to the fabrication shop
where rebar will be hydraulically bent and shaped to customer specifications before being shipped offsite via
truck. All fabrication operations will be conducted indoors although it is anticipated that a laydown area will
be established to store pre-finished material outdoors. Hydraulic oil from drums will be stored inside this
building to support operations. All hydraulic oil is anticipated to be brought to the shop in full containers and
disposed of when empty.
3.1.3.2.10 Vehicle Traffic, Haul Roads, and Railroad Operations
As discussed in previous sections, materials hauled on- and off-site will be transported via truck on paved
and unpaved roads and via rail. As this is a newly developed rail spur, no railroad ties are currently planned
to be stored onsite. Raw materials and byproducts will be moved via mobile equipment on both paved and
unpaved roads. Heavy traffic roads, including the exterior loop road, will be paved.
Traffic from facility roads and the rail line are the only industrial operations in the drainage area of
Retention Pond D. Vehicle traffic is expected in the drainage area of all retention ponds except Retention
Pond H.The rail spur is in the drainage areas of Retention Ponds A, D, and E.
3.1.3.2.11 Pesticides, Herbicides, Soil Conditioners, and Fertilizers
As this was a previously undeveloped property, NSLX does not anticipate requiring initial use of pesticides,
herbicides, soil conditioners, and fertilizers.
3.1.3.2.12 Treatment Methodologies and Stormwater Retention Pond Design
Non-structural treatment methods are discussed in the sections above with each. Inspection schedules and
training requirements for personnel who conduct will be established with the implementation of a
stormwater pollution prevention plan, an anticipated requirement of the issued permit.
Each of proposed stormwater retention ponds will be equipped with a shut off valve such that the level in
the pond can be maintained to allow sufficient retention and settling of stormwater contaminants as
appropriate.
As demonstrated in the drainage maps in the following pages, no industrial activities are planned to be
conducted in the drainage area of Retention Pond H.
Nucor Steel Lexington/Initial Individual NDPES Stormwater Application
Trinity Consultants 3-8

GENERALNOTES
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APPENDIX A. POLLUTION PREVENTION & SCRAP MANAGEMENT PLAN
Nucor Steel Lexington/Initial Ind'Wual NDPES Stormwater Application
Trinity Consultants A-1

Preliminary Draft
Pollution Prevention and Scrap Management Plan
Pollution Prevention/Scrap Management Plan for the Control of Contaminants in Scrap
Under the Area Source Rule for Electric Arc Furnace(EAF) Steelmaking Facilities
Contaminants such as chlorinated plastics, free organic liquids, lead (except for
leaded steel) and mercury are not appropriate or desired for the production of
steel in EAF facilities. However, these contaminants are occasionally found in the
scrap metal that is the basic feedstock for the production of new steel.
EPA has identified EAF facilities as potential sources of HAP emissions and, on
December 28, 2007, promulgated final regulations (codified at 40 CFR Part
YYYYY) intended to control or minimize such emissions.
The regulations require EAF facilities, among other things, to restrict the use of
certain scrap or follow a Pollution Prevention Plan (PPP) for scrap purchased as
production feedstock to minimize the amount of specified contaminants in such
scrap.
Nucor Steel Lexington —A Division of Nucor Corporation ("Nucor") is committed
to complying with the requirements of the EAF Area Source Rule and to the goal
of removing at least 80% of mercury convenience-light switches from motor
vehicle scrap.
Accordingly, Nucor has adopted and will comply with the provisions of this PPP
designed to control the presence of such contaminants in scrap that is consumed
in the EAF by adopting:
1. A specification for scrap that addresses contaminants identified by EPA.
2. Procedures for verifying compliance with the specification.
3. Procedures for taking corrective action against vendors who do not
comply with the specification.
4. Documentation sufficient to demonstrate how Nucor will appropriately
implement its responsibilities under the EPA-approved National Vehicle
Mercury Switch Recovery Program (NVMSRP) or another EPA-approved
program.
This PPP must be approved by USEPA or a delegated authority. Any
deficiencies identified by the permitting authority must be addressed within 60
days of disapproval of the PPP. A copy of the plan and supportive documentation
must remain onsite.
The terms used in this PPP shall have the same definitions as those enumerated
in EPA's Final Area Source Rule found at 40 CFR Part 63 Subpart YYYYY. As
outlined in the final rule, the term "mercury switch" denotes only mercury
Page 1 of 4

switches that are part of a convenience light switch mechanism installed in a
vehicle.
General Scrap Specifications:
The following restrictions apply to all scrap steel purchased or used by Nucor in
its EAF steelmaking process:
• Scrap materials must be depleted to the extent practicable of undrained
used oil filters, chlorinated plastics, and free organic liquids at the time of
charging to the furnace.
• Lead-containing components of scrap, such as batteries, battery cables,
and wheel weights, must be removed, to the extent practicable, prior to
charging in the furnace unless the scrap is used to produce leaded steel.
• Motor vehicle scrap must be purchased from providers that have
minimized the presence of mercury in scrap through participation in the
NVMSRP or another EPA-approved program.
Verification of Compliance with Specifications:
Free Organic Liquids, Chlorinated Plastics, Lead and Lead-Containing
Components:
Visual Inspection: Nucor conducts a visual inspection of incoming scrap loads to
confirm the scrap meets existing quality and/or purchase order specifications.
Scrap loads that do not conform to purchase order specifications are rejected
and the supplier is subjected to corrective action. Scrap loads that are not
rejected but contain foreign materials, the materials will be removed to the extent
practicable prior to charging to the furnace, and the scrap supplier will be subject
to corrective action. Records of rejected scrap loads and supplier corrective
actions are maintained on site for 5 years.
Unrestricted Scrap: Certain types of scrap, including "factory bundles,"
"demolition debris," "home scrap," "return scrap", "rail," and "flashings," as
defined by common industry practice, as well as similar uncontaminated scrap,
are not expected to contain free organic liquids, chlorinated plastics, or lead and
will be presumed to be free of these contaminants. This scrap is not subject to
the inspection and verification requirements of this plan.
Mercury
Nucor shall confirm motor vehicle scrap providers are participating in the
NVMSRP or other EPA-approved program by conducting a review of the End of
Life Vehicle Solutions (ELVS) database to confirm that the motor vehicle scrap
Page 2 of 4

provider is enlisted as a participating member. Nucor will conduct a semi-annual
review of the ELVS database to determine whether the provider remains
identified as an NVMSRP participant.
Nucor may not be able to confirm that some motor vehicle scrap providers such
as Brokers are enlisted as a participating member in the NVMSRP through the
ELVS database. In these cases Nucor will confirm that the broker is participating
in the NVMSRP or another EPA-approved program by obtaining from the broker
written assurance that any motor vehicle scrap provided by such broker to Nucor
was procured from other suppliers who are signed up for and are participating in
the NVMSRP or another EPA-approved program. Nucor will require motor
vehicle scrap brokers to confirm such written assurance on a semi-annual basis.
Nucor will conduct a semi-annual review the ELVS database to corroborate that
the participant is implementing appropriate steps to minimize the presence of
mercury in scrap from end-of-life vehicles by turning in mercury switches.
Some motor vehicle scrap providers participating in the NVMSRP or another
EPA-approved program may not be able to demonstrate their participation in
NVMSRP or another EPA-approved program to minimize the presence of
mercury in the motor vehicle scrap from end-of-life vehicles by turning in mercury
switches because they refuse to accept motor vehicle scrap that contains
mercury switches. Examples would be a broker who purchases motor vehicle
scrap from program participants, or a shredder that accepts only flattened
vehicles from which the mercury switches already have been removed to the
extent practicable prior to delivery to the shredder. For these motor vehicle scrap
providers, Nucor will obtain written assurances from the provider or obtain other
means of corroboration to verify that the participant is implementing appropriate
steps to minimize the presence of mercury in the scrap from end-of-life vehicles.
Written assurance will be confirmed on a semi-annual basis.
If a motor vehicle scrap provider does not participate in or demonstrate through
written assurance that it purchases motor vehicle scrap through NVMSRP or
another EPA-approved program for the removal of mercury switches, Nucor shall
only purchase motor vehicle scrap from such provider pursuant to an EPA-
approved facility-specific program for the removal of mercury switches.
Corrective Action:
Lead, Chlorinated Plastics, Free Organic Liquids
If during an inspection of scrap, Nucor determines that the scrap provider has not
met the required specifications, the scrap provider will be subject to corrective
action, including suspension of the scrap provider.
Mercury
Page 3 of 4

If Nucor reasonably believes, either as a result of inspection, site visits to a scrap
yard, or review of the End of Life Vehicle Solutions (ELVS) database or by other
means, that a scrap supplier is not taking appropriate steps to minimize the
presence of mercury switches in scrap from end-of-life vehicles, the facility will be
subject to corrective action, including suspension of the scrap provider.
Nucor will log corrective actions taken and document the semiannual review of
the ELVS database.
Page 4 of 4