NCS000041_Renewal application_20240802

RECEIVED �■
CLARIANT
AVG 0 2 26z4
Clariant Corporation
LQ3A 13C M Holly.NC 28120
E Catawba Ave
Ms. Brianna Young 3
North Carolina Department of Environmental Jan Botha
Quality BU Care Chemicals,Mt Holly West
Division of Energy, Mineral and Land Resources Site Manager
1612 MSC Phone[phone]
Raleigh, North Carolina 27699-1612 an botha@clanan!com
29.07.2024
Via Email and Hard Copy
Re: Clariant Corporation -Mount Holly West Facility
Individual Storm Water Permit Renewal; NGS000041
Dear Ms. Young,
The Clariant Corporation— Mount Holly West facility, located at 625 E. Catawba Ave., Mt. Holly,
NC 28120 (Gaston County), is currently covered under individual stormwater permit number
NCS000041. The permit became effective August 1, 2019 and expires July 31, 2024.
As stated in the previous letter submitted electronically on July 26,2024,and as discussed in our
telephone conversation on July 29, 2024, it was discovered that a renewal application had not been
submitted by the 180-day deadline prior to the permit expiration date. Please find enclosed EPA
Form 1, Form 2F,the SPPP Certification Form,the Supplemental Information form, and associated
attachments for each form.
Also as discussed, the facility shall continue to comply with the current permit and associated
SPPP until such time as a new permit has been issued.
We appreciate your help and understanding and please contact me if any additional information is
needed at ian.botha(o)clariant.com or(704)822-2074.
Kind r rds,
an Botha
Enc: Form 1 w/Site Location Map
Form 2f wlattachment
Supplemental Information Form wlattachments
SPPP Certification Form

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
110444348687 NC5400441 Clariant Mount Holly West Expires 07/31/2026
Form U,S.Environmental Protection Agency
t \-.EPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTION * • AND
1.1 Applicants Not Required to Submit Form'I
1.1.1 Is the facility a new or existing publicly owned 1.1.2 Is the facility a sludge-only 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 No If yes,STOP. Do NOT complete Q 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.
1.2 1 Applicants Required to Submit Form 1
0 1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
CA operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
o production facility? currently discharging process wastewater?
z ❑ Yes 4 Complete Form 1 and ❑� No ❑ Yes 4 Complete Form ❑� No
R Form 2B. 1 and Farm 2C.
c 1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
amining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
a commenced to discharge? discharges only nonprocess wastewater?
Yes 4 Complete Form 1 and © No E] Yes 4 Complete Form 1 ✓0 No
Form 2D. and Form 2E.
a1,2,5 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?
❑ Yes-* Complete Form 1 and E] No Yes 4 Complete Form 1, No
Form 2F unless Form 2S,and
exempted by Ott CFR any other
122.26(b)(14)(x)or applicable forms,
(b)(15). as directed by
your permitting
auihori .
SECTIONrr• AND LOCATION(40
C 221 Facility Name
0
Clariant Mount Holly West(MHW)
a
2.2 EPA Identification Number
1° 110000348687
ui
2_3 Facility Contact
a Name(first and last) Title Phone number
ai
.R
Lisa King Environmental Specialist [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
110000348687 NC5000041 Clariant Mount Holly West Expires 07131/2026
2_4 Facility Mailing Address
Street or P.O.box
625 E.Catawba Avenue
City or town State ZIP code
Mount Holly7 North Carolina 28120
2_5 Facility Location
Street, route number,or other specific identifier
a v 625 E.Catawba Avenue
o County name County code(if known)
0 Gaston
b
E -_o City or town State ZIP code
Mount Holly North Carolina 28120
• AND NAICS.CODESi
3_1 SIC Code(s) Description(optional)
2843 Surface Active Agents,Finishing Agents,Sulfonated Oils,and Assistants
2899 Chemicals and Chemical Preparations,Not Elsewhere Classified
w
•n
0
U
U)
U
z 3,_2 NAICS Code(s) Description(optional)
v
C
cO 325613 Surface Active Agent Manufacturing
U
325199 All Other Basic Organic Chemical Manufacturing
4_1 Name of Operator
Clariant Corporation
c
p 442 Is the name you listed in Item 4.1 also the owner?
:i
R
o © Yes ❑ No
C
4.3 Operator Status
R ❑ Public—federal ❑ Public--state ❑ Other public(specify)
a
o © Private ❑ Other(specify)
4,.4 Phone Number of Operator
[phone]
EPA Form 3510-1 Page 2

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040.0004
110000348687 NCS000041 Clariant Mount Holly West Expires 0713112026
4.5 Operator Address
o Street or P.O.Box
o = S00 E.Morehead Street,Ste.400
Z City or town State ZiP code
CU
L U Charlotte North Carolina �28202
oEmail address of operator
[e-mail]
SECTION •i
5-1 Is the facility located on Indian Land?
r ❑ Yes ❑✓ No
SECTION -• 1
6_1 Existing Environmental Permits(check all that appiy and print or type the corresponding permit number for each)
w ❑ NPDES(discharges to © RCRA(hazardous wastes) ❑ UIC(underground injection of
osurface water) fluids)
NCQ 085 074 821
w o ❑ PSD(air emissions) ElNonattainment program(CAA) ElNESHAPs(CAA)
0C Synthelic Minor: 08542R31
w El dumping(MPRSA) El Dredge or fill(CWA Section 404) © Other(specify)
Ind.User: Mt.Holly-1158
SECTIONi
7.11 Have you attached a topographic map containing all required information to this application?(See instructions for
R specific requirements.)
❑� Yes ❑ CAFO—Not Applicable(See requirements in Form 2B.)
SECTIONOF t
8_1 Describe the nature of your business.
Site has three main plants(#3,#4,and 45)that manufacture personal care products,alkoxylation products,and
other specialty products such as"de-icer"used by the airline industry. Production is done in numerous reactors via
batch reactions and/or mixing.
.y
7
m
O
N
a..
3
SO
Z
SECTION •• 1
9_1 Does your facility use cooling water?
❑ Yes ❑ No 4 SKIP to Item 10.1.
L
j9_2 Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
CD 40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
'Q v' NPDES permitting authority to determine what specific information needs to be submitted and when.)
Y
r� Water provided by the local municipality(Mount Holly)
EPA Form 3510-1 Page 3

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040.0004
110000348687 NCS000041 Clariant Mount Holly West Expires 07131/2026
SECTIONi VARIANCE - i
10A 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,)
CD
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Cr
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
a ❑� Not applicable
SECTION • i 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
✓❑ Section 3:SIC Codes ❑ wl attachments
✓❑ Section 4:Operator Information wl attachments
✓❑ Section 5:Indian Land 0 wl attachments
Section 6: Existing Environmental Permits ❑ wl attachments
c
d El
Section 7: Map ❑✓ wl topographic map wl additional
.1 attachments
U)
o ❑ Section 8:Nature of Business Elwl attachments
-R
❑ Section 9:Cooling Water Intake Structures ❑ wl attachments
'0 0 Section 10.:Variance Requests ❑ wl attachments
c
❑ Section 11:Checklist and Certification Elwl attachments
J& Statement
11.2 Provide the following certification.(See instructions to determine the appropriate person to sign the application.)
U
Certification Statement
I 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. I 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
Jan Botha Site Manager-Mount Hotly
Signature Date signed (�
EPA Form 3510-1 Page 4

Appendix A
Figure A-1.Site Location Map
G+
4 'r.
3,908,000
2+
r 1101 l 1 _
3,907,000
Clariant MHW Facilih-
3,906,000
ha
3,905,000
w .
l l i_;,l l c E u 496,000 497.000 498,000 499,000
Outfall Locations= A Clariant Corporation
Outfall Fasting Northwna County: Gaston
001 499,470 3,905,851 Receiving Slreain; Calawaba River Trin, i /�,
003 499,419 3,905,758 Slreani Class: WS-IV:Water Supply IV- n C 004 499,394 3,905.635 Highly Developed:and Untsultatits
005 499,369 3,905,543 Critical Area(CA)
006 499,343 3,905,450 Basin Name: Catawaba River Basin

EPA Identification Number NPDES Permit Number Facility Name OMS No.2040-0004
110000348687 NC5000041 Clariant Mount Holly West Expires 07131/2026
Form U.S Environmental Protection Agency
2F `'01 EPI'1 Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATIONr
1.1 Provide information on each of the facilit 's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
1 Catawba River 35.17.45 81.00.21
c
0
3 Catawba River 35.17.42 81.00.23
0
4 Catawba River 35.17.38 81.00.24
O 5 Catawba River 35.17.35 81.00.25
6 Catawba River 35.17.32 81.00.26
IMPROVEMENTSSECTION 2. t
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 + SKIP to Section 3.
2_2 Briefly identify each applicable project in the table below.
Final Compliance
Brief Identification and Affected Outfalls Dates
Description of Project (list outlall numbers) Source(s)of Discharge
Required Projected
m
m
a
0
n
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 3510-217 Page 1

EPA Identification Number NPDES Permit Number Facility Name 0Mi3 No.2040-0004
110000348687 NC5000041 Clariant Mount Holly West Expires 07/31/2026
SECTIOND- i
W 31 Have you attached a site drainage trap containing all required information to this application?(See instructions for
CR
0 M C specific guidance.)
Ca 0 Yes
SECTIONPOLLUTANT SOURCESi
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 of the facility) (within a mile radius of the facility)
Specify units specify units
1 160000 square feet 200000 square feet
specify units specify units
3 234000 square feet 260000 square feet
specify units specify units
4 32500 square feet 50000 square feet
specify units specify units
5 101250 square feet 135000 square feet
specify units specify units
6 418500 square feet 930000 square feet
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.)
N See Attached Page
ai
4
O
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 for specificguidance.).
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-1
fist
1 An approximate 104,000-gallon concrete retention basin 4-A
3 A stormwater retention pond with an approximate capacity of 24,000-gallons 4-A
4 A concrete stormwater retention wall that has an approximate capacity of 47,500-gal 4-A
5 A concrete stormwater retention wall that has an approximate capacity of 47,500-gal 4-A
6 A concrete retention basin with an approximate capacity of 90,000-gallon 4-A
EPA Form 3510-2F Page 2

EPA Identification Number NPDES Permit Number Facility Name OMB No,2040-0004
110000348687 NC5000041 Clariant Mount Holly West Expires 0713112026
SECTION •N STORMWATER r r
5_1 Provide the following certification.(See instructions to determine the appropriate person to sign the application.)
1 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 type first and last name) Official title
, Site Manager-Mount Holly
Signature Date signed
N Q-� _ Zg— ZcZ'Cf
5_2 Provide the testing information requested in the table below.
Aft c� Outfall Onsite Drainage Paints
Number Description of Testing Method Used Date(s)of Testing Directly Observed
During Test
3
oSee Attached Supplemental Information
in
0
z
SECTIONOR 1 r
Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
0
Not Applicable
.x
m
m
c
ca
cs
w.
cn
W
SECTIONDISCHARGE INFORMATIONi
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
o com late.Nat all applicants need to complete each table.
7_1 Is#his a new source or new discharge?
eYes 4 See instructions regarding submission of No -+ See instructions regarding submission of
= estimated data. actual data.
Tables A,B,C,and D
cc
0 7 Have you completed Table A for each outfall?
N_
0 0 Yes
EPA Form 3510-2F Page 3

EPA Identification Number NPDES Permit Number Facility Name OMB No,2040-0004
110000348687 NC5000041 Clariant Mount Holly West 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 [Z] No 4 SKIP to Item 7.5.
7_4 Have you completed Table 8 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 2F-2 are present in the discharge?
❑ Yes 0 No 4 SKIP to Item 7.7.
7_6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge
and provided quantitative data or an explanation for those pollutants in Table C?
❑ Yes
777 Do you quality for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.1B. Q No
d
7_8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑ Yes ✓❑ No 4 SKIP to Item 7.10.
0
0 7_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
w
E 7.10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
❑ 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-methy€4,6-di nitro phenol 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?
❑ 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
715 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 Farm 3510-2F Page 4

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
11000034$6$7 NCS000041 Clariant Mount Holly West Expires 0713112026
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
0 7.17 Have you provided information for the storm event(s)sampled in Table D?
C
.� ❑✓ Yes
0
U
o 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
manufactured as an intermediate or final product or byproduct?
❑ Yes ❑ No 4 SKIP to Section 8.
U 7.19 List the pollutants below, including TCDD if applicable.Attach additional sheets,if necessary.
i4
1. Surfactants 4.Formaldehyde 7. Acrolein(minor by-product)
2. 5. 8.
Benzyl Chloride Propylene Oxide Titanium(in catalyst)
3. Diethylamine 6.Nitrogen and Sulfate(raw mat.} 9. Triethanolamine
SECTION&BIOLOGICAL • t
8_1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made
co on any of your discharges or on a receiving water in relation to your discharge within the last three years?
❑ Yes No+ SKIP to Section 9.
N
82 Identify the tests and their purposes below.
Z' Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
x Permitting Authority?
0
❑ Yes ❑ No
0
o ❑ Yes ❑ No
m
❑ Yes ❑ No
SECTION • •' • 1
9_1 Were any of the analyses reported in Section 7(in Tables A through C)performed by a contract laboratory or
consulting firm?
0 Yes ❑ No 4 SKIP to Section 10.
0
9 2 Provide information for each contract laboratory or consulting firm below.
b Laboratory Number t Laboratory Number 2 Laboratory Number 3
Name of laboratory/firm
c Pace Analytical-Lab 329
y
Laboratory address
a
u
Phone number
0
Pollutant(s)analyzed
EPA Form 3510-21' Page 5

EPA Identification Number NPDES Permit Number Facility Name OMB No.2040-0004
114000348687 NC5000041 Clariant Mount Holly West Expires 0713112026
SECTION ! CHECKLIST AND CERTIFICATION STATEMENT(40
10.1 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 applicants are re uired to complete all sections or provide attachments.
Column 1 Column 2
0 Section 1 ❑ wl attachments(e.g.,responses for additional outfalls)
❑,r Section 2 ❑ wl attachments
ID Section 3 ❑ w/site drainage map
❑� Section 4 © wl attachments
❑✓ Section 5 © wl attachments
❑✓ Section 6 ❑ w/attachments
W Section 7 0 Table A ❑ w/small business exemption request
❑ Table B ❑ wl analytical results as an attachment
C
✓❑ Table C ❑ Table D
❑✓ Section 8 ❑ wl attachments
❑✓ Section 9 ❑ wl attachments(e.g.,responses for additional contact laboratories or firms)
H
m
❑✓ Section 10
102 Provide the following certification.(See instructions to determine the appropriate person to sign the application.)
Certification Statement
I 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.I 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
Jan Botha Site Manager-Mount Holly
Signature Date signed
EPA Form 3510-2F Page 6

EPA Identification Number NPDES Permit Number Facility Name Oulf all Number OMB No.2040-0004
110000348687 NCS000041 Clariant Mount Holly West Expires 07131/2026
TABLE A.CONVENTIONAL AND NON CONVENTIONAL PARAMETERS(40 CFR 122'26(C)(1)(I)(E)(3))1
You muss provide the results of at least one anal sis for every pollutant in this table.Complete one table for each outfall. See instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flow-Weighted ed During First Flow-Weighted site Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite
codes in instructions
1. Oil and grease See Attached
2. Biochemical oxygen demand(BODs) See Attached
3, Chemical oxygen demand(COD) See Attached
4. Total suspended solids(TSS) See Attached
5. Total phosphorus NA
6. Total Kjeldahl nitrogen(TKN) NA
7. Total nitrogen(as N) NA
pH(minimum) See Attached
8.
pH(maximum) See Attached
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 1, 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 ldenlification Number NPDES Permit Number Facility Name Outfall Number OMB No,2040-0004
1100003486587 NC5000041 Clariant Mount Holly West Expires 0713112026
TABLE B.CERTAIN CONVENTIONAL AND NON • f 'f 1 CFR 122.26(C)(1)(1)(E)(4)AND 40
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 outfall.See the instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units (specify units) Information
Pollutant and CAS Number Number of Storm
Grab Sample Taken Grab Sample Taken (new sourceinew
(if available) During First Flow-Weighted During First Flow-Weighted Events Sampled dischar0ers only;use
30 Minutes Composite 30 Minutes Compasite codes in instructions)
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 9

This page intentionally left blank. _
?y .,N!....h.� .>..'+:'"S ...�t;w<. •eir.: . -_... .• H� s-iFk.::c.r.?x..;. :•�• +._;%tea.•

EPA Identification Number NPDES Permit Number Facility Name Outfall Number 01v1S No.2040-0004
110000348687 NCS000041 Clariant Mount Holly West Expires 07/3112026
TOXICTABLE C. POLLUTANTS, '!• AND ASBESTOS(40 CFR 122.26 D 40 AND
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
Pollutant and CAS Number s eci units (s eci units) Number of Storm Information
Sampled hted Events Sam
Flow-Wei
(if ova+table) g p
Grab Sample Taken Flow-Weighted Grab Sample Takers (new source/new
During First During First dischargers only:use
30 Minutes Composite 30 Minutes Composite codes in instructions)
None of the chemicals believed to be present
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR Q6 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 11

This page intentionally left blank.

EPA Identification Number NPOES Permit Number Facility name Outfall Number OMB No.2040-0004
110000348687 NC5000O41 Clariant Mount Holly West Expires 07/31/2026
Provide data for the storm event(s)that resulted in the maximum daily discharges for the flow-weighted composite sample.
Number of Hours Between
Total Rainfall During Maximum Flow Rate
Duration of Storm Event (in inches) Beginning of Storm Measured and (in gpm or specify units) Total Flow from Rain Event
Date of Storm Event (in hours) Storm Event End of Previous Measurable Rain During Rain Event (in gallons or specify units)
Event
Provide a description of the method of flow measurement or estimate.
See Attached Supplemental Information
EPA Form 3510-2F Page 13

Materials Stored (as required per EPA Form 2f—Section 4.2)
Materials are stored in bulk storage tanks and in a variety of portable container types as described in the
following sections.
Product, intermediate,raw material, and wastewater storage tanks are located in numerous diked tank
farms throughout the site. The main active process tank farm areas are in Plant 3(two adjacent diked
tank farms),Plant 4(two adjacent diked tanks farms)and the Plant 5 tank farm area. There are also
dedicated storage areas for ethylene oxide(EO)and propylene oxide(PO)and a large diked area for the
WWTP open-top equalization tanks. Plant 1 and Plant 4"East"also have diked tank farm areas, but in
each of these areas there is only one tank physically remaining and in both cases the tank is out of
service. Area 190 has a diked tank farm area as well, but it is currently in limited use primarily
associated with railcar loading/unloading in support of Plant 5 operations. There are six petroleum-
based fuel storage tanks located throughout the site;these are not in diked areas but the tanks are
double-walled and the gasoline tank is inside of curbing.
Solid and liquid materials are stored in a variety of container types.The most common are 275-gallon
totes and 55-gallon drums.There are also other drum sizes as well as several types of bags, supersacks,
and buckets. Container storage locations can be virtually anywhere on site,the most common being
inside the Warehouse, inside or outside of any of the production buildings(Plant 3, Plant 4, Plant 5), and
outside in designated containment areas(e.g., Plant 4 storage area). Materials in bags or other
containers that could be damaged by rain are not stored outside. Hazardous wastes are stored
separately in designated areas.
Materials are loaded into and/or unloaded from rail cars,tank trucks,and trailers.There are three rail
car loading/unloading areas:Area 190, Plant 4,and EO/PO.There are six tank truck loading areas:Plant
1, Plant 3, Plant 4, Plant 4 East,Plant 5, and Area 190.All of these areas utilize loading racks designed for
that purpose.The Plant 1 and Plant 4 East loading/unloading areas are no longer active. Containers are
loaded into trailers at Warehouse loading docks and Plant 5 loading docks.
There are more than 400 chemical raw materials and products on site. Some of the major categories
include:fuels, heat transfer fluids,fatty alcohols,fatty acids,alkylphenols, EO& PO, caustic,acids,
amines, phenols,formaldehyde, DEET,and biocides. Process wastewater is generated throughout the
site and flows into the process sewer for biological treatment in the site wastewater treatment plant
(WWTP). At the WWTP sludge is generated and stored in a roofed area prior to pickup for disposal.
Detailed lists of individual chemicals handled onsite are provided in the site's annual Tier 2 report.

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
�2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility(Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

Supplemental Form Information
Mount Holly West—Stormwater Permit Renewal
NCS000041
The text presented below corresponds with the required "supplemental information" indicated on the
SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT form.
Contents below are as follows:
1. Site Map from the SPPP
2. Table with Summary of Analytical Results
3. Table with Summary of Visual Monitoring
4. Summary of Best Management Practices(BMPs)
5. List of Significant Changes
6. Copy of August 18, 2021,Inspection Report for NC-DEQ regarding Outfall#7
7. SPPP Certification Form

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Summary of Analytical Results
Analytical Results during the existing permit term (August 2019-July 2024)are summarized in the Table
Below. Note that units for all parameters(except pH)are in mg/I and "ND"means non-detect.
Date/Rainfall Outfall i Outfall 3 Outfall 4 Outfall 5 Outfall 6 Outfall 7*
in(inches)
0&G: ND 0&G: ND O&G: ND O&G: 5.6 O&G: 9.7 O&G: 6.7
TSS: 38 TSS: 63 TSS: 30 TSS: 19 TSS: 17 TSS: 22
10/13/19 pH: 6.5 pH: 6.4 pH: 6.2 pH: 6.3 pH: 6.3 pH: 6.0
Rainfall: 1.1 SOD: 28 SOD: 7.9 SOD: 4.4 SOD: 8.8 SOD: 6.6 SOD: 4.5
COD: 68 COD: 34 COD: ND COD: 30 COD: ND COD: ND
Phenols: 0.011 Phenols: 0.011 Phenols: ND Phenols: ND Phenols: ND Phenols: ND
0&G: ND O&G: ND O&G: ND 0&G: ND 0&G: ND O&G: ND
TSS: 8.3 TSS: 22 TSS: 9.3 TSS: 13 TSS: 15 TSS: 5.9
4/12/20 PH: 7.0 pH: 6.9 pH: 6.9 PH: 7.0 PH: 7.0 pH: 6.9
Rainfall: 2.0 SOD: 5.6 SOD: 6.3 SOD: 4.0 SOD: 6.4 SOD: 6.4 SOD: 2.8
COD: ND COD: 23 COD: ND COD: 26 COD: ND COD: ND
Phenols: ND Phenols:0.0084 Phenols: ND Phenols: ND Phenols: ND Phenols: ND
O&G: 8.5 O&G: 8.7 0&G: ND 0&G: ND O&G: ND O&G: ND
TSS: 29 TSS: 68 TSS: 25 TSS: 35 TSS: 50 TSS: 19
8/3/20 pH: 6.5 pH: 6.9 pH: 6.4 pH: 7.2 pH: 6.9 pH: 6.8
Rainfall: 0.4 SOD: 16 SOD: 11 SOD: 5 SOD: 9.6 SOD: 12 SOD: 8.3
COD: 31 COD: 36 COD: ND COD: 36 COD: 63 COD: 33
Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND
O&G: ND O&G: ND O&G: ND O&G: ND 0&G: ND 0&G: ND
TSS: 12 TSS: 42 TSS: 26 TSS: 23 TSS: 19 TSS: 30
6/3/21 pH: 6.1 pH: 6.2 pH: 6.1 pH: 6.4 pH: 6.8 pH: 6.4
Rainfall: 0.3 SOD: 10 SOD: 8.7 SOD: 7.3 SOD: 7.4 SOD: 6.8 SOD: 5.6
COD: 64 COD: 29 COD: 40 COD: 33 COD: 42 COD: 36
Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND
0&G: ND O&G: ND O&G: 6.2 0&G: ND 0&G: ND Monitoring No
TSS: 8 TSS: 14 TSS: 12 TSS: ND TSS: 26 Longer
9/21/21 pH: 7.3 pH: 7.2 pH: 7.0 pH: 7.7 pH: 7.7 Required(See
Rainfall: 0.3 BOD: 2.6 SOD: 3.5 SOD: ND SOD: ND SOD: 2.4 Attached
COD: 23 COD: 31 COD: ND COD: ND COD: 20 Inspection
Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND Report)
O&G: ND 0&G: ND O&G: ND O&G: it 0&G: ND Monitoring No
TSS: 21 TSS: 16 TSS: 24 TSS: 6.4 TSS: 18 Longer
4/5/22 pH: 6.7 pH: 6.6 pH: 6.6 pH: 6.5 pH: 6.6 Required(See
Rainfall: 2.6 SOD: 16 SOD: 11 SOD: 17 SOD: 5.8 SOD: 10 Attached
COD: 25 COD: 23 COD: 35 COD: ND COD: 26 Inspection
Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND Report)
0&G: ND 0&G: ND 0&G: ND O&G: ND O&G: ND Monitoring No
TSS: 5.4 TSS: 13 TSS: 25 TSS: 21 TSS: 10 longer
11/15/22 pH: 6.7 pH: 7.0 pH: 6.8 pH: 6.8 pH: 6.2 Required(See
Rainfall: 0.5 SOD: 4.6 SOD: 8.5 SOD: 2.3 SOD: 3.1 SOD: ND Attached
COD: ND COD: ND COD: ND COD: 41.6 COD: ND Inspection
Phenols: ND Phenols: ND Phenols: ND Phenols: ND Phenols: ND Report)
6/11/23 O&G: 7.8 O&G: <5.0 0&G: <5.4 O&G: <5.3 0&G: <5.7 Monitoring No
Outfalls 1,3,4,5 TSS: 9.9 TSS: 10.5 TSS: 12.3 TSS: 20.3 TSS: 11 Longer
Rainfall:0.5 PH: 6.7 pH: 7.0 pH: 6.8 pH: 6.8 pH: 6.9 Required(See
6/21/23 SOD: <2.0 SOD: 4.5 SOD: 2.3 SOD: 4.0 SOD: 4.5 Attached
COD: <25 COD: 28 COD: 37 COD: 44.2 COD: 24 Inspection
Outfall 6 phenols:<0.005 Phenols:<0.005 Phenols:<0.005 Phenols:<0.005 Phenols:<0.005 Report)
Rainfall:1.0

Date/Rainfall OutfallI Outfall3 Outfall4 Outfall5 Outfall6 Outfall7*
in(inches)
O&G: 7.3 O&G: <5.7 O&G: <5.7 O&G: <5.7 O&G: <5.7 Monitoring No
TSS: 4.8 TSS: 11 TSS: 5.8 TSS: 4.5 TSS: 11 Longer
11/21/23 pH: 7.1 pH: 7.0 pH: 7.0 pH: 7.0 pH: 6.9 Required(See
Rainfall: 1.0 BOD: 5.0 BOD: 8.3 BOD: <2 BOD: 3.3 BOD: 4.5 Attached
COD: <20 COO: 27 COD: <20 COD: <20 COD: 24 Inspection
Phenols: <0.005 Phenols:<0.005 Phenols:<0.005 Phenols:<0.005 Phenols:<0.005 Report)
O&G: ND O&G: <16.7 O&G: <25 O&G: <16.7 0&G: <16.7 Monitoring No
TSS: 9.9 TSS: 10.5 TSS: 12.3 TSS: 20.3 TSS: 6.8 Longer
5/14/24 pH: 6.8 pH: 7.1 pH: 6.9 pH: 6.7 pH: 6.7 Required(See
Rainfall: 2.0 BOD: <2 BOD: 4.5 BOD: 2.3 BOD: 4.0 BOD: 3.3 Attached
COD: <25 COD: 28 COD: ND COD: 44.2 COD: 32.7 Inspection
Phenols: <0.005 1 Phenols:<0.005 Phenols:<0.005 Phenols:<0.005 1 Phenols:<0.005 Report)
* Monitoring for Outfall#7 was no longer required after August 2021 (see discussion and attached
Inspection report from NC-DEQ)

Summary of Visual Monitoring Results
The table below summarizes visual monitoring for:
• Color;
• Odor;
• Clarity;
• Floating Solids;
• Suspended Solids;
• Foam;
• Oil Sheen;and
• "Other obvious indicators of stormwater pollution" (including erosion or deposition)
Each parameter is individually checked for each Outfall during a rain event along with the time of
inspection and the inspector's initials. Records of the form are saved on site. In the majority of
inspections operators documented that the parameter was either"good"or"not detected"or"clear"or
some other terminology indicating no concerns were identified. In the table below,those instances
where an item of concern or other atypical,a note was made. Otherwise the table simply indicates"no
concerns noted".
Date/Rainfall OutfallI Outfall3 Outfall4 Outfall5 Outfall6 Outfall7*
in(inches)
10/13/19 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 1.1 Noted Noted Noted Noted Noted Noted
4/12/20 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 2.0 Noted Noted Noted Noted Noted Noted
8/3/20 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 0.4 Noted Noted Noted Noted Noted Noted
No Concerns No Concerns No Concerns No Concerns No Concerns Some Grass
6/3/21 Noted Noted Noted Noted Noted solids were
Rainfall: 0.3 noted,but not
significant
9/21/21 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 0.3 Noted Noted Noted Noted Noted Noted
4/5/22 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 2.6 Noted Noted Noted Noted Noted Noted
11/1S/22 Some minor No Concerns No Concerns No Concerns No Concerns No Concerns
Erosion at Noted Noted Noted Noted Noted
Rainfall: 0.5 outfoll Noted
6/11/23 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 0.5 Noted Noted Noted Noted Noted Noted
11/21/23 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 1.0 Noted Noted Noted Noted Noted Noted
5/14/24 No Concerns No Concerns No Concerns No Concerns No Concerns No Concerns
Rainfall: 2.0 Noted Noted Noted J Noted Noted Noted

Summary of Best Management Practices (BMPs)
The MHW facility uses numerous BMPs to prevent and/or minimize the potential for pollutants to reach
surface waters.These BMPs have been developed and implemented based on many years of
experience, and have taken into consideration the types, volumes,and locations of potential pollutant
sources.A long history of stormwater monitoring data has affirmed the effectiveness of these BMPs.
The BM Ps have been selected to prevent stormwater pollution by stressing the importance of
stormwater management and employee awareness of potential sources.
Structural Controls
The MHW facility has constructed several concrete retention basins positioned between plant process
areas and the river. Drainage from each stormwater basin is controlled by manual valves that are
normally kept closed. Only WWTP employees are authorized to open these valves and release
accumulated stormwater. Before releasing any stormwater, WWTP personnel follow the facility formal
written procedures and visually observe the water for color, foam, staining, sheens, and evidence of dry
weather flow. Records of each inspection and stormwater release are documented.
The basins are described as follows:
> An approximate 104,000-gallon concrete retention basin was constructed east of Plant 1 in 2013-
2014.Collected material can either be transferred to WWTP from this basin (if there is evidence of
contamination), or discharged through Outfall 001. The discharge valve in the basin is kept closed
and any accumulated stormwater is inspected prior to release to Outfall 001.
> A concrete retention basin with an approximate capacity of 90,000-gallon is located east of Plant S.
Collected material could either be transferred to WWTP from this basin, or discharged through
Outfall 006. The discharge valve in the basin is kept closed and any accumulated stormwater is
inspected prior to release to Outfall 006.
> A stormwater retention pond with an approximate capacity of 24,000-gallons is located east of Plant
1 and Plant priorto Outfall 003.
> A concrete stormwater retention wall was constructed east of the rail unloading/loading station that
has an approximate capacity of 47,500-gallons. If collected stormwater is released, it would be
discharged through Outfall 004.
> The site maintains checklist to verify valve positioning in the retention basins.
Containment curbing is provided for most of the site for additional protection in areas having the
greatest risk of loss of containment. As shown on Figure A-2 there are"Spill Control Areas" in Plant 3
and Plant 4 as well as an area near the Catawba River in the vicinity of Plant 1. In Plant 5,a sump
collects stormwater and standard procedure is to pump stormwater initially collected to the WWTP for
treatment after which this stormwater then flows to the concrete retention basin associated with
Outfall#6. Additionally, secondary containment(a collection pit) is provided for the truck scale in the
event a leak occurred.

Secondary Containment
Secondary containment is provided for the bulk storage of liquid materials and hazardous substances.
Bulk storage areas have adequate secondary containment.Containment areas are either pumped to the
industrial sewer or drained to the stormwater sewer. Drainage to the stormwater sewer is controlled by
manual valves that are normally kept closed.Only WWTP employees are authorized to open these
valves and release accumulated stormwater. Before releasing any stormwater,WWTP personnel visually
observe the water for color, foam, staining, sheens,and evidence of dry weather flow. Records of each
inspection and stormwater release are documented and kept.
Non-Structural Controls
Non-structural stormwater BMPs used at the MHW facility include the following:
> Most loading and unloading operations are conducted in paved areas that drain into the industrial
sewer.
> Process areas utilize written procedures for all chemical-handling tasks.
> Outfalls and containment structures are inspected regularly.
> All employees who work in chemical process areas receive training in operating procedures, spill
prevention, and spill response.
> The site has an emergency response team (ERT)on site, trained in spill containment and mitigation.
> Major construction contractors are required to have an erosion control plan.
> Housekeeping activities are expected and routinely conducted to keep work areas clean and
organized.
> Equipment is drained of all process fluids and examined before being placed in the equipment
laydown yard to avoid potential stormwater contamination.
Employee Training
All employees whose jobs have the potential to affect stormwater are trained at least once per calendar
year.Annual training includes: proper spill response and cleanup procedures, housekeeping practices,
maintenance and inspection requirements, spill containment structures and operating procedures, and
a review of the stormwater sewers and stormwater outfalls at the site. Additional topics of emphasis
may be added to the training as needed.
The ESHA Department is responsible for providing training to all affected employees.Training records
are maintained on-site.

Significant Changes Since August 1, 2019 (Start of Previous Permit Term)
In general production operations at the MHW facility are unchanged since 2019. There have been no
major construction projects nor any significant changes in operating practices or chemicals handled.
In 2021,Clariant requested that what had been referred to as"Outfall#7" be removed from the list of
outfalls for which monitoring is required. The basis of this request was that Outfall#7 ultimately flows
into channels that release via Outfall#6 and that these channels are under Clariant's control (previously
some of the property adjacent to the site was residential but, over the years Clariant has acquired
ownership of these tracts of land. NCDEQ conducted an inspection on August 18,2021,and approved
this request. A copy of the inspection report is attached.

Compliance Inspection Report
Permit:NCS000041 Effective: 08/01/19 Expiration: 07/31/24 Owner: Clariant Corporation
SOC: Effective: Expiration: Facility: Mount Holly West Facility
County: Gaston 625 E Catawba Ave
Region: Mooresville
Mount Holly NC 28120
Contact Person:William White Title: Phone:[phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 08/18/2021 Entry Time 09:OOAM Exit Time: 10:OOAM
Primary Inspector:James D Moore Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: 0 Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCS000041 Owner-Facility:Clariant Corporation
Inspection Date: 08/18/2021 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Based on the inspection outfall 007 can be removed from the outfalls to be monitored per NCS000041 and the eDMR
reporting system.
Page 2 of 3

Permit: NCS000041 Owner-Facility:Clariant Corporation
Inspection Date: 08/18/2021 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Permit and Outfalls
Yes No NA NE
#Is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ 1111
#Were all outfalls observed during the inspection? 0 ❑ ❑ ❑
#If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ M ❑
#Has the facility evaluated all illicit(non stormwater)discharges? ■ ❑ 1111
Comment: All outfalls were observed during the inspection and all are representative of the industrial
activity except outfall 007. Based on the inspection outfall 007 can be removed from the
outfalls to be monitored per NCS000041.
Page 3 of 3

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources—Stormwater Program
Facility Name: CWani Mount HotlyWest
Permit Number: NCS000041
Location Address: 625 East Catawba Avenue;Mount Holly,NC 28120
County:
Gallon
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature Date
Jan Botha Site Manager-Mount Holly
Print or type name of person signing above Title
SPPP Certification 10113