NC0003875_Renewal (Application)_20220307

ROY COOPER
Governor
ELIZABETH S.BISER
Secretary Q" °
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
March 07, 2022
Elementis Chromium, LP
Attn: Matt Hamburg, Plant Manager
5408 Holly Shelter Road
Castle Hayne, NC 28429
Subject: Permit Renewal
Application No. NC0003875
Castle Hayne Plant
New Hanover County
Dear Applicant:
The Water Quality Permitting Section acknowledges the March 7, 2022 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
„ailtVACW*di
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
W t r o rces
D_E Q North Carolina Department of Environmental Quality I Division of a e Res u
./ Wilmington Regional OfFlce 127 Cardinal Drive Extension Wllming[on.North Carolina 28405
e....-r—' :.w744; / 910.79h.7215

ELEMENTIS
CHROMIUM
Certified Mail Return Receipt
91 7108 2133 3939 7132 9991
March 2,2022
DIVISION OF WATER RESOURCES RECEIVED
Water Quality Permitting Section-NPDES MAR O
1617 Mail Service Center 7 2022
Raleigh,NC 27699-1617 NCDEO/DWR/NPDES
RE: NPDES PERMIT RENEWAL
NC0003875—ELEMENTIS CHROMIUM,INC CASTLE HAYNE PLANT
Enclosed please find the original and two copies of the completed NPDES Permit Application for renewal of this
facility's NPDES permit, Permit Number NC0003875. Our current permit expires at midnight on August 31, 2022.
Elementis Chromium, Inc (Elementis) hereby respectively requests renewal of NPDES Permit Number NC0003875
for the above referenced facility.
Elementis manufactures sodium dichromate, chromic acid, sodium sulfate anhydrous, and salt cake at its Castle
Hayne facility and is subject to 40 CFR 415.
Please note that there have been no changes at the facility since issuance of the last permit. Samples have been
collected for the Table B pollutants and will be sent as a supplement to this permit application once results are
received by our contract laboratory.
Thank you for your efforts with this renewal. If you have any questions or concerns,please do not hesitate to contact
Sean Coury at(910) 685-3662.
Sincerely,
/4/-
Matt Hambur
Plant Manager
Enclosures
Elementis Chromium LP
5408 Holly Shelter Road
Castle Hayne,NC 28429
Telephone:[phone]
Facsimile:[phone]

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium Inc OMB No.2040-0004
Form U.S. Environmental Protection Agency
1 a EP/�CI-/�1 Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTION 1.ACTIVITIES REQUIRING AN NPDES PERMIT(40 CFR 122.21(f)and(f)(1))
1.1 Applicants Not Required to Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 1
treatment works? 1. .2 treating domestic sewage?
If yes, STOP. Do NOT complete 0✓ No If yes,STOP. Do NOT ✓� No
Form 1.Complete Form 2A. complete Form 1.Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
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
production facility? currently discharging process wastewater?
Yes 4 Complete Form 1 ✓� No 0✓ Yes 4 Complete Form No
o and Form 2B. 1 and Form 2C.
1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
c mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
E El Yes 4 Complete Form 1 0✓ No Yes 3 Complete Form p✓ No
and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
discharge is composed entirely of stormwater
a associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
Yes 4 Complete Form 1 No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
SECTION 2. NAME, MAILING ADDRESS,AND LOCATION (40 CFR 122.21(f)(2))
2.1 Facility Name
Elementis Chromium Inc
p 2.2 EPA Identification Number
e
0
J 110000350272
2.3 Facility Contact
Name(first and last) Title Phone number
Sean Coury Environmental Engineer [phone]
Q ,
c Email address
[e-mail]
m 2.4 Facility Mailing Address
a Street or P.O.box
5408 Holly Shelter Rd
City or town State ZIP code
Castle Hayne NC 28429
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium Inc OMB No.2040-0004
o d 2.5 Facility Location
.a .c Street,route number,or other specific identifier
Q v 5408 Holly Shelter Rd
o County name County code(if known)
New Hanover
E City or town State ZIP code
co z Castle Hayne North Carolina 28429
SECTION 3.SIC AND NAICS CODES(40 CFR 122.21(f)(3))
3.1 SIC Code(s) Description(optional)
2819 Industrial Inorganic Chemicals not elsewhere classified
N
d)
0
C.)
C/)
3.2 NAICS Code(s) Description(optional)
325180 Other Basic Inorganic Chemical Manufacturing
N
SECTION 4.OPERATOR INFORMATION(40 CFR 122.21(f)(4))
4.1 Name of Operator
Elementis Chromium
4.2 Is the name you listed in Item 4.1 also the owner?
'0 ✓❑ Yes ElNo
L 4.3 Operator Status
0
❑ Public—federal ❑ Public—state ❑ Other public(specify)
ElPrivate ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
oA Street or P.O.Box
E m 5408 Holly Shelter R
0 0
City or town State ZIP code
o v Castle Hayne NC 28429
m
fl Email address of operator
[e-mail]
SECTION 5.INDIAN LAND(40 CFR 122.21(f)(5))
a -0 5.1 Is the facility located on Indian Land?
c �' ❑Yes ID No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium Inc OMB No.2040-0004
SECTION 6.EXISTING ENVIRONMENTAL PERMITS(40 CFR 122.21(f)(6))
6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
m NPDES(discharges to surface ❑ RCRA(hazardous wastes) ❑ UIC(underground injection of
water) fluids)
NC0003875 and NCS000003 NCD057454670
c
a ❑✓ PSD(air emissions) ❑ Nonattainment program(CM) ❑✓ NESHAPs(CM)
c 02937T40 02937T40
w ❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑✓ Other(specify)
WQ0001492
SECTION 7.MAP(40 CFR 122.21(f)(7))
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
0. specific requirements.)
co
❑✓ Yes ❑ No ❑ CAFO—Not Applicable(See requirements in Form 2B.)
SECTION 8.NA7URE OF BUSINESS(40 CFR 122.21(f)(8))
8.1 Describe the nature of your business.
Elementis Chromium(Elementis)currently operates under the authorization of NPDES Permit Number NC0003875
located at 5408 Holly Shelter Rd,Castle Hayne,NC 28443. Elementis manufactures sodium dichromate,chromic
acid,sodium sulfate anhydrous,and salt cake at its Castle Hayne facility and is subject to 40 CFR 415.
-tN
O
SECTION 9.COOLING WATER INTAKE STRUCTURES(40 CFR 122.21(f)(9))
9.1 Does your facility use cooling water?
❑ Yes ❑✓ No 4 SKIP to Item 10.1.
— 9.2 Identify the source of cooling water. (Note that facilities that use a cooling water intake structure as described at
40 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.)
;3,)
SECTION 10.VARIANCE REQUESTS(40 CFR 122.21(f)(10))
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.)
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
❑✓ Not applicable
EPA Form 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium Inc OMB No.2040-0004
SECTION 11.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
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 Permit 0 w/attachments
❑✓ Section 2: Name,Mailing Address,and Location 0 w/attachments
❑✓ Section 3: SIC Codes ❑ w/attachments
❑✓ Section 4:Operator Information ❑ w/attachments
✓❑ Section 5: Indian Land ❑ w/attachments
❑✓ Section 6: Existing Environmental Permits ❑ w/attachments
wl topographic
❑✓ Section 7: Map ❑✓ map ❑ w/additional attachments
co
o ❑✓ Section 8:Nature of Business ❑ w/attachments
❑✓ Section 9:Cooling Water Intake Structures ❑ wl attachments
-a
❑✓ Section 10: Variance Requests ❑ w/attachments
co
;' ❑ Section 11: Checklist and Certification Statement ❑ w/attachments
m 11.2 Certification Statement
U'
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
Matt Hamburg Plant Manager
Signature Date signed
/61— "2 3-2 ® o 2_
EPA Form 3510-1(revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
Form U.S.Environmental Protection Agency
2C \, /C CPA Application for NPDES Permit to Discharge Wastewater
NPDES /`1 EXISTING MANUFACTURING,COMMERCIAL,MINING,AND SILVICULTURE OPERATIONS
SECTION 1.OUTFALL LOCATION(40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below.
o Outfall Receiving Water Name Latitude Longitude
•R Number
001 Northeast Cape Fear River 34° 22' 34" 71° 51' 55"
To—
= 002 Internal Outfall " °
O
—
003 Northeast Cape Fear River 34° 22' 34" 71° 51' 55"
SECTION 2.LINE DRAWING(40 CFR 122.21(g)(2))
cm 2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a water
. balance?(See instructions for drawing requirements.See Exhibit 2C-1 at end of instructions for example.)
J R
0 0 Yes ❑ No
SECTION 3.AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1,provide average flow and treatment information.Add additional sheets if
necessary.
**Outfall Number** 001
Operations Contributing to Flow
Operation Average Flow
Industrial Waste Water Treatment Plant Discharge 0.695 mgd
c
c' mgd
a
F mgd
-a
a
R mgd
o Treatment Units
rnDescription Final Disposal of Solid or
(include size,flow rate through each treatment unit, Code from
9 Liquid Wastes Other Than
aretention time,etc.) Table 2C-1 by Discharge
Reactors(3)(batch 24,000 gal each) 2-L Impoundment(W00001492)
Thickeners(3)(0.785 mgd) 1-U Impoundment(WQ0001492)
Sand Filters(2)(0.785 mgd) 1-V Impoundment(WQ0001492)
EPA Form 3510-2C(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
3.1 **Outfall Number** 002
cont. Operations Contributing to Flow
Operation Average Flow
Sanitary Waste Treatment Plant 0.006 mgd
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) by Discharge
Aeration(2 units,10,000 gpd each) 3-C Industrial WWT Plant
Clarifier(2 units,10,000 gpd each) 3-C Industrial WWT Plant
0
U
UV Disinfection(20,000 gpd) 3-C Industrial WWT Plant
E
m
--0 **Outfall Number** 003
Operations Contributing to Flow
0 Operation Average Flow
rL-
Surface Disposal Unit Discharge(Intermittent flow) 0.7 mgd
a mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Liquid Wastes Other Than
retention time,etc.) Table 2C-1 by Discharge
Settling 1-U Impoundment(WQ0001492)
1 Sand Filters(2)(0.785 mgd) 1-V Impoundment(WQ0001492)
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
❑ Yes ❑✓ No 4 SKIP to Section 4.
3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes 0 No
EPA Form 3510-2C(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
SECTION 4.INTERMITTENT FLOWS(40 CFR 122.21(g)(4))
4.1 Except for storm runoff,leaks,or spills,are any discharges described in Sections 1 and 3 intermittent or seasonal?
0 Yes ❑ No 4 SKIP to Section 5.
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach additional pages,if necessary.
Outfall Operation Frequency Flow Rate
Number (list) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
Surface Disposal Unit 7 days/week 1 months/year 0.002 mgd 0.7 mgd 31 days
0 003 days/week months/year mgd mgd days
u_
c days/week months/year mgd mgd days
a>
days/week months/year mgd mgd days
d
c
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
SECTION 5.PRODUCTION(40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
0 Yes ❑ No 3 SKIP to Section 6.
u> 5.2 Provide the following information on applicable ELGs.
w ELG Category ELG Subcategory Regulatory Citation
-Q Sodium Dichromate Production Inorganic Chemicals Manufacturing 40 CFR Part 415 Q
ro
tl
.p-
Sodium Sulfate Production Inorganic Chemicals Manufacturing 40 CFR Part 415 Q
5.3 Are any of the applicable ELGs expressed in terms of production(or other measure of operation)?
c 0 Yes 0 No 4 SKIP to Section 6.
0
s 5.4 Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
OutfallUnit of
Operation,Product,or Material Quantity per Day Measure
-p Number _
co
m 001 Sodium Dichromate 225 Tons/day
C
0
ti
Ts
Sodium Sulfate 235 Tons/day
2
a
EPA Form 3510-2C(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
SECTION 6.IMPROVEMENTS(40 CFR 122.21(g)(6))
6.1 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 ElNo 4 SKIP to Item 6.3.
6.2 Briefly identify each applicable project in the table below.
a Affected Final Compliance Dates
Brief Identification and Description of Outfalls Source(s)of
E.' Project (list outfall Discharge Required Projected
eL number)
E
C
co
N
d
fQ
a.
Q.
6.3 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 ❑ Not applicable
SECTION 7.EFFLUENT AND INTAKE CHARACTERISTICS(40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
complete. Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
7.1 Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for any of
your outfalls?
❑ Yes ❑ No 4 SKIP to Item 7.3.
7.2 If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the application.
Outfall Number Outfall Number Outfall Number
7.3 Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not been
y requested and attached the results to this application package?
El Yes ❑ No;a waiver has been requested from my NPDES
permitting authority for all pollutants at all outfalls.
co
Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
. 7.4 Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry categories
co
listed in Exhibit 2C-3?(See end of instructions for exhibit.)
❑r Yes ❑ No 4 SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
❑ Yes ❑ No
7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)identified
in Exhibit 2C-3.
PrimaryRequired GCIMS Fraction(s)
Industry Category
(Check applicable boxes.)
Inorganic Chemicals 0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
EPA Form 3510-2C(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
7.7 Have you checked'Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the
GC/MS fractions checked in Item 7.6?
D Yes ❑ No
7.8 Have you checked`Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
• Yes ❑ No
7.9 Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
0 Yes ❑ No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
❑ Yes 4 Note that you qualify at the top of Table B, ❑ No
-a then SKIP to Item 7.12.
7.11 Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have
determined testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,
pollutants you have indicated are`Believed Present"in your discharge?
❑✓ Yes ❑ No
Table C.Certain Conventional and Non-Conventional Pollutants
tv 7.12 Have you indicated whether pollutants are`Believed Present"or"Believed Absent"for all pollutants listed on Table C
for all outfalls?
❑r Yes ❑ No
c 7.13 Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
0 Yes ❑ No
w Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
0 Yes ❑ No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged
and(2)by providing quantitative data,if available?
D Yes ❑ No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you
know or have reason to believe that TCDD is or may be present in the effluent?
❑ Yes+Complete Table E. El No 4 SKIP to Section 8.
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑ Yes ❑ No
SECTION 8.USED OR MANUFACTURED TOXICS(40 CFR 122.21(g)(9))
8.1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as
an intermediate or final product or byproduct?
❑ Yes ElNo 4 SKIP to Section 9.
8.2 List the pollutants below.
I
3. 6. 9.
EPA Form 3510-2C(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 Elementis Chromium OMB No.2040-0004
SECTION 9.BIOLOGICAL TOXICITY TESTS(40 CFR 122.21(g)(11))
9.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made
within the last three years on(1)any of your discharges or(2)on a receiving water in relation to your discharge?
❑✓ Yes ❑ No 4 SKIP to Section 10.
y
152 9.2 Identify the tests and their purposes below.
Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
XPermitting Authority?
0
6 Chronic Toxicity Permit Required ❑✓ Yes ❑ No 12/28/2021
Quarterly
0
0
❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10.CONTRACT ANALYSES(40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in Section 7 performed by a contract laboratory or consulting firm?
❑r Yes ❑ No 4 SKIP to Section 11.
10.2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Name of laboratory/firm Environmental Chemists
(094)
Laboratory address 6602 Windmill Way
re
a Wilmington,NC 28405
U
0 Phone number
[phone]
Pollutant(s)analyzed All
SECTION 11.ADDITIONAL INFORMATION(40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
❑ Yes ❑r No 4 SKIP to Section 12.
0
11.2 List the information requested and attach it to this application.
0
1. 4.
0
2. 5.
3. 6.
EPA Form 3510-2C(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium OMB No.2040-0004
SECTION 12.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
12.1 In Column 1 below,mark the sections of Form 2C 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 complete all sections or provide attachments.
Column 1 Column 2
✓❑ Section 1:Outfall Location ❑ w/attachments
❑✓ Section 2:Line Drawing ❑ w/line drawing ❑ w/additional attachments
.171 Section 3:Average Flows and w/list of each user of
Treatment ❑ w/attachments ❑ privately owned treatment
works
❑✓ Section 4:Intermittent Flows ❑ w/attachments
❑✓ Section 5:Production ❑ w/attachments
wl optional additional
0 Section 6:Improvements ❑ w/attachments ❑ sheets describing acy
additional pollution control
plans
❑ w/request for a waiver and ❑ w/explanation for identical
supporting information outfalls
❑ w/small business exemption ❑ w/other attachments
request
✓❑ Section 7:Effluent and Intake El Table A 0 w/Table B
`� Characteristics
0
❑ w/Table C ❑ w/Table D
w/analytical results as an
CD ❑ w/Table E ❑ attachment
❑ Section 8:Used or Manufactured ❑ wl attachments
Toxics
❑ Section 9:Biological Toxicity ❑ w/attachments
0) Tests
0
El Section 10:Contract Analyses ❑ w/attachments
❑✓ Section 11:Additional Information ❑ wl attachments
.171 Section 12:Checklist and ❑ w/attachments
Certification Statement
12.2 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
Matt Hamburg Plant Manager
Signature Date signed
(Ca71 1
3-2 202Z
EPA Form 3510-2C(Revised 3-19) Page 7

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(iii))1
Effluent Intake
Waiver
(Optional)
Pollutant Requested Units Maximum Maximum Long-Term
of applicable (specify) Daily Monthly Average Daily Number of Long-Term Number of
Discharge Discharge Discharge Analyses Average Value Analyses
(required) _ (if available) (if available) 1
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/I 4 2 1.1 200
1' ❑
(BOD5) Mass
Chemical oxygen demand Concentration N/A N/A N/A N/A N/A
2. ❑
(COD) Mass
Concentration N/A N/A N/A N/A N/A
3. Total organic carbon(TOC) 0
Mass
Concentration
4. Total suspended solids(TSS) 0
Mass lb 134 35 70 200
Concentration mg/I 7.42 3.15 6 200
5. Ammonia(as N) 0
Mass
6. Flow 0 Rate MGD 0.9 0.78 0.695 200
Temperature(winter) ❑ °C °C 30 32 19 200
7. -
Temperature(summer) ❑ °C °C 35 31 35 200
pH(minimum) ❑ Standard units S.U. 8.2 8.2 8.18 200
8. - -
pH(maximum) 0 Standard units s.u. 7 6.9 7.07 200
1 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 3510-2C(Revised 3-19) Page 9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthly
Average Number Number
Present Absent y Dailyof Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections
2 through 5 of this table.Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic'Metals,Cyanide,and Total Phenols
Antimony,total Concentration
1.1 (7440-36-0) El 0 Mass
Arsenic,total 0 Concentration
1.2 (7440-38-2) Mass
1.3 Beryllium,total � Concentration
(7440-41-7) Mass
1.4 Cadmium,total ❑ ❑ Concentration
(7440-43-9) Mass
Chromium,total � Concentration
1.5 ✓(7440-47-3) Mass
Copper,total 11:1 ❑ Concentration
1.6 (7440-50-8) Mass
Lead,totalEl Concentration
1.7 0 El
(7439-92-1) Mass
Mercury,total ❑ Concentration
1.8 (7439-97-6) Mass
Nickel,total 0 Concentration
1'9 0 El
(7440-02-0) Mass
Selenium,total Concentration
1.10 0 El El
(7782-49-2) Mass
Silver,total0 Concentration
1.11 El El
(7440-22-4) Mass
EPA Form 3510-2C(Revised 3-19)
Page 11

EPA Identification Number NPDES Permit
e Number Facility Name Duffel'Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units i Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
(and
Present Absent Daily MonthlyAverage Number Number
Dail of Term
Discharge Discharge y ' Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
1.12 Thallium,total Concentration
CI 0(7440-28-0) Mass
1.13 Zinc,total Concentration
(7440-66-6) Mass
1.14 Cyanide,total El CIConcentration
(57-12-5) Mass
1.15 Phenols,total 0 Concentration
Mass
Section 2.Organic Toxic Pollutants(GC/MS Fraction—Volatile Compounds)
2.1 Acrolein Concentration
(107-02-8) Mass
Acrylonitrile Concentration
2.2 0
(107-13-1) CI 0 Mass
Benzene Concentration
2.3 Cl 0(71-43-2) Mass
Bromoform Concentration
2.4 CI 00
(75-25-2) Mass -
Carbon tetrachloride CI ❑ Concentration
2.5 (56-23-5) Mass
Chlorobenzene El
2.6 (108-90-7) Mass
Chlorodibromomethane Concentration
2.7 (124-48-1) Mass
Chloroethane Concentration
2.8 0
(75-00-3) Mass
I
EPA Form 3510-2C(Revised 3-19) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed Maximum Maximum I Long-
q Present Absent (specify) Daily Monthly Average Number Term Number
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
2.9 2-chloroethylvinyl ether � Concentration
(110-75-8) Mass
Concentration
2.10 Chloroform(67-66-3) 0 El 0Mass
2.11 Dichlorobromomethane � Concentration
El
(75-27-4) Mass
11-dichloroethane Concentration
2.12 0
(75-34-3) Mass
2.13 1,2-dichloroethane � Concentration
(107-06-2) Mass
2.14 1,1-dichloroethylene 0 0 Concentration
(75-35-4) Mass
1,2-dichloropropane � Concentration
✓
2.15 (78-87-5) Mass
1,3-dichloropropylene Concentration
2.16 El
(542-75-6) El 0 Mass
Ethylbenzene 0 Concentration
2.17 (100-41-4) Mass
2.18 Methyl bromide 0 Concentration
(74-83-9) Mass
2.19 Methyl chloride Concentration
(74-87-3) Mass
2.20 Methylene chloride Concentration
(75-09-2) Mass
1 1,2 2-tetrachloroethane 0 Concentration
2.21 CI 0
(79-34-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 13

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Number
Present Absent Term
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Analyses
(if available) Value
2.22 Tetrachloroethylene Concentration
(127-18-4) Mass
2.23 Toluene Concentration
(108-88-3) Mass
2.24 1 2-trans-dichloroethylene O Concentration
(156-60-5) Mass
2.25 1,1,1-trichloroethane ❑ Concentration
(71-55-6) Mass
2.26 1,1,2-trichloroethane El 0 Concentration
(79-00-5) Mass
2.27 Trichloroethylene 0 0 Concentration
(79-01-6) Mass
Vinyl chloride ElConcentration
2.28 (75-01-4) Mass
Section 3.Organic Toxic Pollutants(GC/MS Fraction—Acid Compounds)
2-chlorophenol Concentration
3.1 0 El(95-57-8) Mass
2,4-dichlorophenol � Concentration
3.2 (120-83-2) Mass
2,4-dimethylphenol Concentration
3.3 (105-67-9) Mass
4,6-dinitro-o-cresol CI ❑ Concentration
3.4 (534-52-1) Mass
3.5 2,4-dinitrophenol ❑� 0 Concentration
(51-28-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 14

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing Units i Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
(and DailyMonthlyAverage Number Number
Present Absent Daily of Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
3.6 2-nitrophenol Concentration
(88-75-5) Mass
4-nitrophenol Concentration
3.7 (100-02-7) _ Mass
3.8 p-chloro-m-cresolID 0 0 Concentration
(59-50-7) Mass
3.9 Pentachlorophenol ❑ Concentration
(87-86-5) Mass
3.10 Phenol Concentration
El 00
(108-95-2) Mass
3.11 2,4,6-trichlorophenol Concentration
El(88-05-2) Mass
Section 4.Organic Toxic Pollutants(GC/MS Fraction—Base/Neutral Compounds)
Acenaphthene ❑ Concentration
4.1 (83-32-9) Mass
4.2 Acenaphthylene � Concentration
(208-96-8) Mass
Anthracene Concentration
4.3 (120-12-7) Mass
Benzidine Concentration
4.4 (92-87-5) Mass
Benzo(a)anthracene 0 Concentration
4.5 El(56-55-3) Mass
4.6 Benzo(a)pyrene 0 0 ❑ Concentration
(50-32-8) Mass
EPA Form 3510-2C(Revised 3-19) Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
MonthlyAverage Number Number
Present Absent Daily Dailyof Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
4.7 3,4-benzofluoranthene El 0 Concentration
(205-99-2) Mass
4.8 Benzo(ghi)perylene ❑ Concentration
(191-24-2) Mass
4.9 Benzo(k)fluoranthene Concentration
(207-08-9) Mass
4.10 Bis(2-chloroethoxy)methane Concentration
(111-91-1) Mass
4.11 Bis(2-chloroethyl)ether 0 ❑ Concentration
(111-44-4) Mass
4.12 Bis(2-chloroisopropyl)ether O Concentration
(102-80-1) Mass
4.13 Bis(2-ethylhexyl)phthalate Concentration T
(117-81-7) Mass
4-bromophenyl phenyl ether Concentration
4.14 (101-55-3) Mass
4.15 Butyl benzyl phthalate � Concentration
(85-68-7) Mass
2-chloronaphthalene ❑ � � Concentration
4.16 (91-58-7) '' Mass
4-chlorophenyl phenyl ether Concentration
4.17 (7005-72-3) Mass
Chrysene Concentration
4.18 El El 0
(218-01-9) Mass
Dibenzo(a,h)anthracene Concentration
4.19 (53-70-3) Mass
EPA Form 3510-2C(Revised 3-19)
Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Number
Present Absent Term
Discharge Discharge Dailyof Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
1,2-dichlorobenzene ❑ Concentration
4.20 (95-50-1) Mass
4.21 1,3-dichlorobenzene ❑ ❑ Concentration
(541-73-1) Mass
4.22 1,4-dichlorobenzene ❑ Concentration
(106-46-7) Mass
3,3-dichlorobenzidine ❑ Concentration
4.23 El(91-94-1) Mass
Diethyl phthalate Concentration
4.24 (84-66-2) Mass
Dimethyl phthalate ❑ Concentration
4.25 (131-11-3) Mass
Di-n-butyl phthalate El Concentration
4.26 (84-74-2) _Mass
2,4-dinitrotoluene ❑ 0 Concentration
4.27 (121-14-2) Mass
4.28 2,6-dinitrotoluene Concentration
-
(606-20-2) Mass
4.29 Di-n-octyl phthalate 0 Concentration
(117-84-0) Mass
1,2-Diphenylhydrazine Concentration
4.30 (as azobenzene)(122-66-7) Mass
4.31 Fluoranthene Concentration
El 0 El
(206-44-0) Mass
4.32 Fluorene Concentration
(86-73-7) Mass
EPA Form 3510-2C(Revised 3-19)
Page 17

1
EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
Long-
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum
DailyMonthlyAverage NumberNumber
Present Absent Term
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
4.33 Hexachlorobenzene Concentration
El 0(118-74-1) Mass
4.34 Hexachiorobutadiene El
(87-68-3) Mass
4.35 Hexachlorocyclopentadiene El Concentration
(77-47-4) Mass
Hexachloroethane C3 ❑ Concentration
4.36 El
(67-72-1) Mass
Indeno(1,2,3-cd)pyrene Concentration
4.37 (193-39-5) El 0 Mass
Isophorone ❑ � Concentration
4.38 (78-59-1) Mass
Naphthalene 0 Concentration
4.39 El 0
(91-20-3) Mass
Nitrobenzene Concentration
4.40 (98-95-3) Mass
N-nitrosodimethylamine � Concentration
4.41 (62-75-9) Mass
N-nitrosodi-n-propylamine � ❑ Concentration
4.42 (621-64-7) Mass
N-nitrosodiphenylamine ❑ Concentration
4.43 (86-30-6) Mass
Phenanthrene ❑ ❑ Concentration
4.44 El
(85-01-8) Mass
4.45 Pyrene Concentration
1:1
(129-00-0) El ❑ Mass
EPA Form 3510-2C(Revised 3-19) Page 18
1

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
Long-
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum MonthlyAverage NumberNumber
Present Absent Daily Dailyof Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
Of available)
4.46 1,2,4-trichlorobenzene 0 Concentration
El El
(120-82-1) Mass j
Section 5.Organic Toxic Pollutants(GC/MS Fraction—Pesticides)
Aldrin 0 Concentration
5.1 El
(309-00-2) Mass
5.2 a-BHC ❑ El Concentration
(319-84-6) Mass
5.3 R"BHCEl El 0 Concentration
(319-85-7) Mass
y-BHC Concentration
5.4 0 El
(58-89-9) ✓ _Mass
b-BHC Concentration
5.5 El El(319-86-8) ✓ Mass
Chlordane Concentration
5.6 El El 0
(57-74-9) Mass
4,4'-DDT ✓� Concentration
5.7 El
(50-29-3) Mass
5.8 4 4'-DDE El Els Concentration
(72-55-9) Mass
4,4'-DDD Concentration
5.9 (72-54-8) ✓ Mass
Dieldrin ✓ Concentration
5.10 El
(60-57-1) Mass
a-endosulfan Concentration
5.11 (115-29-7) ✓ Mass
EPA Form 3510-2C(Revised 3-19)
Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantiParameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
aily of of
Discharge fDischarge Discharge Analyses Average Analyses
re uired
-- ( q available) (if available) Value
R-endosulfan El 0 ❑ Concentration
5.12 (115-29-7) Mass
Endosulfan sulfate ❑ ❑ ❑ Concentration
5.13 (1031-07-8) Mass
5.14 Endrin El ❑ ❑ Concentration
(72-20-8) Mass
Endrin aldehyde El 0 Concentration
5.15 (7421-93-4) ✓ Mass
5.16 Heptachlor El 0
❑ Concentration
(76-44-8) Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) 0 0
Mass
PCB-1242 Concentration
5.18 (53469-21-9) ❑ 0 0 -
Mass
PCB-1254 Concentration
5.19 (11097-69-1) 0 0 0 Mass
PCB-1221 Concentration
5.20 (11104-28-2) 0 0 0 Mass
PCB-1232 Concentration
5.21 (11141-16-5) ❑ 0 0
Mass
PCB-1248 Concentration
5.22 (12672-29-6) ❑ 0 ❑r
Mass
PCB-1260 Concentration
5.23 (11096-82-5) ❑ ❑ D
_ Mass
PCB-1016 Concentration
5.24 (12674-11-2) 0 ❑ 0 Mass
EPA Form 3510-2C(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Number
Present Absent Dailyof Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
Toxaphene Concentration
5.25 (8001-35-2) 0 ❑ 0 Mass
1 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 3510-2C(Revised 3-19)
Page 21

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))l
Presence or Absence
(check one) Effluent Intake
(Optional)
Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Lon Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
(required) Discharge Discharge Analyses Analyses
(if available) (if available) Value
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
1 Bromide ❑ Q Concentration
(24959-67-9) Mass
Chlorine,total ❑ ❑ Concentration
2. residual Mass
3. Color El 0 Concentration
Mass
4. Fecal coliform El El Concentration
Mass
5 Fluoride ✓ Concentration
(16984-48-8) Mass
6 Nitrate-nitrite El El
Concentration
Mass
Nitrogen,total Concentration
7' organic(as N) El ElMass
8. Oil and grease ❑ Concentration
Mass
Phosphorus(as Concentration
g' P),total(7723-14-0) ❑ Mass
10. Sulfate(as SO4) 0 0 Concentration
(14808-79-8) Mass
Concentration
11. Sulfide(as S) ❑ El -
Mass
EPA Form 3510-2C(Revised 3-19) Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(Optional)
Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Long-Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
(required) Discharge Discharge Analyses Analyses
(if available) (if available) Value
12. Sulfite(as SO3) ❑ ❑ Concentration
(14265-45-3) Mass
Concentration
13. Surfactants ❑ El
Mass
14. Aluminum,total ❑ ❑ Concentration
(7429-90-5) Mass
15. Barium,total ❑ ❑ Concentration
(7440-39-3) Mass
16. Boron,total ❑ ❑ Concentration
(7440-42-8) Mass
17 Cobalt,total ❑ ❑ Concentration
(7440-48-4)
Mass
18. Iron,total ❑ ❑ Concentration
(7439-89-6) Mass
19. Magnesium,total ❑ ❑ Concentration
(7439-954) Mass
Molybdenum, Concentration
20. total ❑ ❑r
(7439-98-7) Mass
21. Manganese,total El ElConcentration
(7439-96-5) Mass
22 Tin,total ❑ ❑ Concentration
(7440-31-5)
_ Mass
23 Titanium,total ❑ ❑ Concentration
(7440-32-6) Mass
EPA Form 3510-2C(Revised 3-19)
Page 24

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence Intake
(check one) Effluent
(Optional)
Units
Pollutant Maximum Long-Term
Believed Believed (specify) Maximum Daily Monthly Average Daily Number of Long-Term Number of
Present Absent Discharge Discharge Discharge Analyses Average Analyses
(required)
uired
q ) (if available) _ (if available) I V81ue
24. Radioactivity
Alpha,total ❑ Mass
Beta,total 0 Concentration
Mass
Concentration
Radium,total 0 0 Mass
Radium 226,total 0 0
Concentration
Mass
r 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 3510-2C(Revised 3-19) Page 25

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))1
Presence or Absence
Pollutant check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge
(specify units)
Present Absent
1. Asbestos ❑ El
2. Acetaldehyde 0 El
3. Allyl alcohol 0 El
4. Allyl chloride ❑ El
5. Amyl acetate ❑ El
6. Aniline ❑ ❑r
7. Benzonitrile 0 El
8. Benzyl chloride ❑ 0
9. Butyl acetate 0 ❑✓
10. Butylamine ❑ El
11. Captan 0 El
12. Carbaryl ❑
13. Carbofuran ❑ El
14. Carbon disulfide ❑ 2
15. Chlorpyrifos 0 El
16. Coumaphos 0 El
17. Cresol ❑ CI
18. Crotonaldehyde 0 El
19. Cyclohexane ❑ El
EPA Form 3510-2C(Revised 3-19) Page 27

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 12221(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed 9 (specify units)
Present Absent
20. 2,4-D(2,4-dichlorophenoxyacetic acid) ❑ E
21. Diazinon ❑ El
22. Dicamba 0 0 —-- — -- '
23. Dichlobenil ❑ ❑
24. Dichlone 0 El
25. 2,2-dichloropropionic acid 0 ❑r
26. Dichlorvos ❑ 0
27. Diethyl amine ❑ ❑r
28. Dimethyl amine ❑ El
29. Dintrobenzene ❑ ❑r
30. Diquat ❑ 0
31. Disulfoton 0 El
32. Diuron 0 El
33. Epichlorohydrin 0 E
34. Ethion 0 El
35. Ethylene diamine 0 ❑r
36. Ethylene dibromide ❑ El
37. Formaldehyde ❑ El
38. Furfural ❑ El
EPA Form 3510-2C(Revised 3-19)
Page 28

EPA Identification Number NPDES Permit Number Facility Name Duffel!Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge
(specify units)
Present Absent
39. Guthion ❑ El
40. Isoprene 0 El
41. Isopropanolamine ❑ 0
42. Kelthane ❑ CI
43. Kepone ❑ El
44. Malathion ❑ El
45. Mercaptodimethur El 0
46. Methoxychlor ❑ E
47. Methyl mercaptan ❑ El
48. Methyl methacrylate ❑ El
49. Methyl parathion ❑ El
50. Mevinphos ❑ El
51. Mexacarbate 0 El
52. Monoethyl amine ❑ C
53. Monomethyl amine ❑ El
54. Naled 0 El
55. Naphthenic acid ❑ El
56. Nitrotoluene ❑ El
57. Parathion El El
EPA Form 3510-2C(Revised 3-19)
Page 29

EPA Identification Number NPDES Permit Number Facility Name Outfall Number
Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))l
Presence or Absence
Pollutant (check one) ReasonAvailable Quantitative Data
Believed Believed Pollutant Believed Present in Discharge
(specify units)
Present Absent
58. Phenolsulfonate 0 0
59. Phosgene 0 0
60. Propargite 0 0
61. Propylene oxide 0 0
62. Pyrethrins 0 0
63. Quinoline ❑ r0
64. Resorcinol ❑ 0
65. Strontium ❑ El
66. Strychnine 0 0
67. Styrene 0 0
68 2,4 5-T(2,4,5-trichlorophenoxyacetic 0 0
acid)
69. TDE(tetrachlorodiphenyl ethane) 0 0
70. 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ 0
propanoic acid]
71. Trichlorofon 0 El
72. Triethanolamine ❑ El
73. Triethylamine 0 0
74. Trimethylamine ❑ ❑r
75. Uranium 0 0
76. Vanadium 0 0
EPA Form 3510-2C(Revised 3-19) Page 30

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium o01 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 12221(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge
(specify units)
Present Absent
77. Vinyl acetate ❑ El
78. Xylene 0
79. Xylenol 0
80. Zirconium ❑ El
1 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 3510-2C(Revised 3-19) Page 31

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 001 OMB No.2040-0004
TABLE E.2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD)(40 CFR 122.21(g)(7)(viii))
TCDD Presence or
Congeners Absence
Pollutant Used or (check one) Results of Screening Procedure
Manufactured Believed Believed
Present Absent
2,3,7,8-TCDD ❑
EPA Form 3510-2C(Revised 3-19)
Page 33

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(iii))1
Effluent Intake
Waiver Units Maximum Maximum Long-Term (optional)
Pollutant Requested (specify) Daily Monthly Average Daily Number of Long-Term Number of
(if applicable)
Discharge Discharge Discharge Analyses Average Value Analyses
(required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration mg/I 2 2 2 4
1' ❑
(BODs)
Mass
Chemical oxygen demand Concentration N/A N/A N/A N/A N/A
2' ❑
(COD) Mass
Concentration N/A N/A N/A N/A N/A
3. Total organic carbon(TOC) 0
Mass
Concentration mg/I 2 2 2 2
4. Total suspended solids(TSS) 0
Mass
Concentration NA NA NA NA NA
5. Ammonia(as N) ❑
Mass
6. Flow ❑ Rate MGD 0.576 0.576 0.576 4
Temperature(winter) ❑ °C °C 20 16 20 4
7,
Temperature(summer) ❑ °C °C 35 31 35 4
pH(minimum) ❑ Standard units s.u. 7.2 7.9 7.2 4
8. -
pH(maximum) ❑ Standard units S.U. 7.9 7.9 7.2 200
1 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 3510-2C(Revised 3-19) Page 9

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily °f Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections
2 through 5 of this table. Note, however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
1.1 Antimony, total 0 0 0 Concentration
(7440-36-0) Mass
Arsenic,total Concentration
1.2 (7440-38-2) Mass
Beryllium,total El 0 � Concentration
1.3 (7440-41-7) Mass
Cadmium,total Concentration
1.4 0
(7440-43-9) El 0 Mass
Chromium,total Concentration ug/l 24 14.4
1.5 0 0 0
(7440-47-3) Mass
Copper,total Concentration
1.6 0 0 0
(7440-50-8) Mass
Lead,totalEl Concentration
1.7 0 0
(7439-92-1) Mass
Mercury,total El
1.8 (7439-97-6) Mass
1.9 Nickel,total ✓❑ Concentration
0 0(7440-02-0) Mass
-
1.10 Selenium,total Concentration
(7782-49-2) Mass
Silver,total Concentration
1.11 El
(7440-22-4) 0 0 Mass
EPA Form 3510-2C(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
1.12 Thallium,total Concentration
El 0 El
(7440-28-0) Mass
1.13 Zinc,total Concentration a
(7440-66-6) Mass q
1.14 Cyanide,total Concentration
(57-12-5) Mass
1.15 Phenols,total ❑ 0 0
Concentration
Mass
Section 2.Organic Toxic Pollutants(GC/MS Fraction—Volatile Compounds)
Acrolein Concentration
2.1 (107-02-8) 0 ❑ Mass
2.2 Acrylonitrile ❑ 0Concentration
(107-13-1) Mass
Benzene Concentration
2.3 El 0 El
(71-43-2) Mass _
2.4 Bromoform Concentration
(75-25-2) Mass
2.5 Carbon tetrachloride Concentration
(56-23-5) Mass
Chlorobenzene Concentration
2.6 (108-90-7) 0 El 0 Mass
2.7 Chlorodibromomethane Concentration
(124-48-1) Mass
2.8 Chloroethane Concentration
(75-00-3) Mass
EPA Form 3510-2C(Revised 3-19) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available) _
2.9 2-chloroethylvinyl ether ❑ O Concentration
(110-75-8) Mass
2.10 Chloroform(67-66-3) 0 0 0
Concentration
Mass
Dichlorobromomethane ElConcentration
2.11 El
(75-27-4) _Mass
1,1-dichloroethane Concentration
2.12 (75-34-3) Mass
1,2-dichloroethane El � Concentration
2.13 (107-06-2) Mass _
1,1-dichloroethylene Concentration
2.14 (75-35-4) Mass
1,2-dichloropropane 0 El
2.15 El
(78-87-5) Mass
1,3-dichloropropylene 0 Concentration
2.16 (542-75-6) Mass
Ethylbenzene Concentration
2.17 (100-41-4) Mass
2.18 Methyl bromide 0Concentration
El El
(74-83-9) Mass
2.19 Methyl chloride Concentration
(74-87-3) Mass
2.20 Methylene chloride ❑ Concentration
(75-09-2) Mass
2.21 1,1,2 2-tetrachloroethane ❑ Concentration
(79-34-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 13

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Analyses
Value
_ (if available)
2.22 Tetrachloroethylene 0 Concentration
(127-18-4) Mass
2.23 Toluene Concentration
El ElEl
(108-88-3) Mass
2 24 1,2-trans-dichloroethylene El
El
(156-60-5) Mass
1,1,1-trichloroethane ❑ ❑ Concentration
2.25 (71-55-6) Mass
1,1,2-trichloroethane El � ❑ Concentration
2.26 (79-00-5) Mass
2.27 Trichloroethylene ❑ o 0Concentration
(79-01-6) Mass
2.28 Vinyl chloride 0Concentration
(75-014) Mass
Section 3.Organic Toxic Pollutants(GC/MS Fraction—Acid Compounds)
3.1 2-chlorophenol Concentration
(95-57-8) Mass
2,4-dichlorophenol Concentration
3.2 (120-83-2) Mass
2,4-dimethylphenol � ❑ Concentration
3.3 (105-67-9) Mass
4,6-dinitro-o-cresol � Concentration
3.4 (534-52-1) Mass
3.5 2,4-dinitrophenol Concentration
(51-28-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 14

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
(and
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Analyses
Value
_ (if available)
3.6 2-nitrophenol Concentration
(88-75-5) Mass
4-nitrophenol ❑ ❑ ❑ Concentration
3.7 (100-02-7) Mass
p-chloro-m-cresol Concentration
3.8 (59-50-7) Mass
3.9 Pentachlorophenol 0 El0Concentration
(87-86-5) Mass
3.10 Phenol 0Concentration
0 0
(108-95-2) Mass
2,4,6-trichlorophenol ❑ ElConcentration
3.11 (88 05 2) Mass
Section 4.Organic Toxic Pollutants(GC/MS Fraction—Base/Neutral Compounds)
4.1 Acenaphthene 0 0 0✓ Concentration
(83-32-9) Mass
Acenaphthylene El ❑ Concentration
4.2 (208-96-8) Mass
Anthracene ❑ Concentration
4.3 El El
(120-12-7) Mass
Benzidine ❑ Concentration
4.4 I:3 El
(92-87-5) Mass
4.5 Benzo(a)anthracene E3 ❑ ElConcentration
(56-55-3) Mass
4.6 Benzo(a)pyrene El El0Concentration
(50-32-8) Mass
EPA Form 3510-2C(Revised 3-19) Page 15

1 EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
OMB No.2040-0004
110000350272 NC0003875 Elementis Chromium 003
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant(Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
(and DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
4.7 3,4-benzofluoranthene Concentration
(205-99-2) Mass
4.8 Benzo(ghi)perylene El � Concentration
(191-24-2) Mass
4.9 Benzo(k)fluoranthene Concentration
El El El
(207-08-9) Mass
Bis(2-chloroethoxy)methane � Concentration
4.10 (111-91-1) Mass
4.11 Bis(2-chloroethyl)ether 0 ❑ 0Concentration
(111-44-4) Mass
4.12 Bis(2-chloroisopropyl)ether ❑ 0 0Concentration
(102-80-1) Mass
4.13 Bis(2-ethylhexyl)phthalate ❑ 0 Concentration
(117-81-7) Mass
4-bromophenyl phenyl ether ElConcentration
4.14 0 El
(101-55-3) Mass
Butyl benzyl phthalate ❑ � Concentration
4.15 (85-68-7) Mass _
4.16 2-chloronaphthalene 0Concentration
El
(91-58-7) Mass
4-chiorophenyl phenyl ether � ElConcentration
4.17 (7005-72-3) Mass
4.18 Chrysene Concentration
(218-01-9) Mass _
Dibenzo(a,h)anthracene � � Concentration
4.19 (53-70-3) Mass
EPA Form 3510-2C(Revised 3-19) Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
1,2-dichlorobenzene 0 Concentration
4.20 0 0
(95-50-1) _Mass
1,3-dichlorobenzene Concentration
4.21 (541-73-1) El 0 ✓ Mass
4.22 1,4-dichlorobenzene Concentration
El 0(106-46-7) Mass
4.23 3,3-dichlorobenzidine ❑ o ✓0 Concentration
-
(91-94-1) Mass
4.24 Diethyl phthalate ❑ © Concentration
(84-66-2) Mass
4.25 Dimethyl phthalate Concentration
El ElEl
(131-11-3) Mass
4.26 Di-n-butyl phthalate ElConcentration
(84-74-2) _Mass
-
4.27 2,4-dinitrotoluene Concentration
El ElEl
(121-14-2) Mass
2,6-dinitrotoluene 0 Concentration
4.28 0 El
(606-20-2)
Mass
Di-n-octyl phthalate El ❑ ❑ Concentration
4.29 (117-84-0) Mass
4.30 1,2-Diphenylhydrazine ❑ ElConcentration
(as azobenzene)(122-66-7) Mass
Fluoranthene ❑ Concentration
4.31 El 0
(206-44-0) Mass
4.32 Fluorene Concentration
El 0 El
(86-73-7) Mass
EPA Form 3510-2C(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Ouffall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Analyses
Value
(if available)
4.33 Hexachlorobenzene 0Concentration
0
(118-74-1) Mass
Hexachlorobutadiene El Concentration
4.34 0 0
(87 68 3) Mass
Hexachlorocyclopentadiene Concentration
4.35 (77-47-4) El El Mass
4.36 Hexachloroethane 0Concentration
0El
(67-72-1) Mass
4.37 Indeno(1,2,3-cd)pyrene ElConcentration
El 0
(193-39-5) Mass
Isophorone El Concentration
4,38 El
(78-59-1) Mass
4.39 Naphthalene El ✓l Concentration
El
(91-20-3) Mass
4.40 Nitrobenzene � ❑ Concentration
0(98-95-3) Mass
N-nitrosodimethylamine ❑ Concentration
4.41 (62-75-9) Mass _
N-nitrosodi-n-propylamine ❑ � Concentration
4.42 (621-64-7) Mass
4.43 N-nitrosodiphenylamine El El Concentration
(86-30-6) Mass
4.44 Phenanthrene Concentration
0 0 0
(85-01-8) Mass
-
4.45 Pyrene Concentration
0 El El
(129-00-0) Mass
EPA Form 3510-2C(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
CAS Number.if available) Required Believed Believed Maximum Maximum Long-
(and q (specify) DailyMonthlyAverage Number Term Number
Present Absentof of
Discharge Discharge
DisDcharge Analyses aily Average Analyses
(required) (if available) Value
(if available)
4.46 1,2,4-trichlorobenzene CI ❑ CIConcentration
(120-82-1) Mass _
Section 5.Organic Toxic Pollutants(GCIMS Fraction—Pesticides)
Aldrin Concentration
5.1 (309-00 2) ❑ CI
Mass
a-BHC Concentration
5.2 (319-84-6) 0 CI ❑
Mass
R-BHC Concentration
5.3 (319-85-7) ❑ ❑ Mass
y-BHC Concentration
5.4 (58-89-9) ❑ CI ❑ Mass _
6-BHC Concentration
5.5 (319-86-8) 0 ❑ ❑ Mass
5.6 Chlordane ❑ ❑ ❑ Concentration
(57-74-9) Mass
5.7 4,4'-DDT 0
0
❑ Concentration
(50-29-3) Mass
5.8 4 4'-DDE 0
❑ ❑ Concentration
(72-55-9) Mass _
5.9 4,4'-DDD 0 0 O Concentration
(72-54-8) Mass
Dieldrin Concentration
5.10 (60 57 1) ❑ ❑ ❑
Mass
5.11 a-endosulfan CI CI CIConcentration
(115-29-7) Mass
EPA Form 3510-2C(Revised 3-19) Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v)y
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
DailyMonthlyAverage Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
R-endosulfan ❑ 0 � Concentration
5.12 (115-29-7) Mass
5.13 Endosulfan sulfate 0 ElConcentration
(1031-07-8) Mass
5.14 Endrin Concentration
(72-20-8) Mass
Endrin aldehyde � Concentration
5.15 (7421-93-4) Mass
Heptachlor 0 ElConcentration
5.16 El
(76-44-8) Mass
Heptachlor epoxide Concentration
5.17 (1024-57-3) 0 0 0 Mass
PCB-1242 Concentration
5.18 (53469-21-9) ❑ 0 0 Mass
PCB-1254 Concentration
5.19 (11097-69-1) 0 0 ✓❑ Mass
PCB-1221 Concentration
5.20 (11104-28-2) 0 ❑ 0 Mass
PCB-1232 Concentration
5.21 (11141-16-5) El 0 0 Mass
PCB-1248 Concentration
5.22 (12672-29-6) 0 El El _Mass
PCB-1260 Concentration
5.23 (11096-82-5) 0 El Mass
PCB-1016 Concentration
5.24 (12674-11-2) 0 El ✓❑ Mass
EPA Form 3510-2C(Revised 3-19) Page 20

1
EPA Identification Number NPDES Permit Number Facility Name Outfall Number
Fo
rm Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004 1
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Long-
MonthlyAverage Number Term Number
Present Absent Daily
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Analyses
Value
(if available)
Toxaphene Concentration
5.25 (8001-35-2) 0 0 0
Mass
1 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 3510-2C(Revised 3-19) Page 21

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004 1
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(Optional)
Units
Pollutant Maximum Long-Term
Believed Believed (specify) Maximum Daily Monthly Average Daily Number of Long-Termge
Number of
Present Absent Discharge Average
Discharge Discharge Analyses Averag Analyses
(required)
q (if available) (if available) Value
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
1-1 Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
1 Bromide ❑ ❑ Concentration
(24959-67-9) Mass
2 Chlorine,total El ❑ Concentration
residual Mass
3. Color El ❑ Concentration
Mass
4. Fecal coliform 0 Concentration
❑
Mass
5 Fluoride ❑ ❑✓ Concentration
(16984-48-8) Mass
6 Nitrate-nitrite El 0 Concentration
Mass
Nitrogen,total Concentration
7' organic(as N) ElMass
Concentration
8. Oil and grease 0 0 Mass
Phosphorus(as Concentration
g' P),total(7723-14-0) El 0 Mass
10, Sulfate(as SO4) 0 0 Concentration
(14808-79-8) Mass
Concentration
11. Sulfide(as S) 0 ✓❑
Mass
EPA Form 3510-2C(Revised 3-19) Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(Optional)
Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Long-Term
Monthly Average Daily Number of Average Number of
Present Absent Discharge
(required) Discharge Discharge Analyses Value Analyses
(if available) (if available)
12. Sulfite(as SOs) ❑ ✓❑ Concentration
(14265-45-3) Mass
Concentration
13. Surfactants ❑ 0 Mass
14. Aluminum,total ❑ ✓❑ Concentration
(7429-90-5) Mass
15. Barium,total ❑ ❑ Concentration
(7440-39-3)
Mass
16. Boron,total ❑ ❑ Concentration
(7440-42-8) Mass
17, Cobalt,total ❑ ❑ Concentration
(7440-08-4) Mass
18 Iron,total ❑ ❑ Concentration
(7439-89-6)
Mass
19 Magnesium,total ❑ ❑ Concentration
(7439-95-4) Mass
Molybdenum, Concentration
20. total ❑ ❑✓ Mass
(7439-98-7)
21 Manganese,total ❑ ❑ Concentration
(7439-96-5) Mass
22 Tin'total ❑ ✓❑ Concentration
(7440-31-5) Mass
23. Titanium,total ❑ ❑✓ Concentration
(7440-32-6) Mass
EPA Form 3510-2C(Revised 3-19) Page 24

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(Optional)
Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Long-Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
(required) Discharge Discharge Analyses Value Analyses
(if available) (if available)
24. Radioactivity
Concentration
Alpha,total D ❑✓
Mass
Beta,total ❑ Concentration
Mass
Radium,total El ✓❑
Concentration
Mass
Concentration
Radium 226,total ❑ 0 Mass
I 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 3510-2C(Revised 3-19) Page 25

1
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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 12221(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge (specify units)
Present Absent
1. Asbestos 0 ❑✓
2. Acetaldehyde ❑ ❑✓
3. Allyl alcohol ❑ ✓❑
4. Allyl chloride 0 ✓❑
5. Amyl acetate 0 ❑✓
6. Aniline ❑ ❑✓
7. Benzonitrile 0 0
8. Benzyl chloride ❑ ✓❑
9. Butyl acetate ❑ ❑✓
10. Butylamine ❑ ❑✓
11. Captan ❑ 0
12. Carbaryl ❑ ❑✓
13. Carbofuran 0 0
14. Carbon disulfide ❑ El
15. Chlorpyrifos 0 ❑✓
16, Coumaphos ❑ ✓❑
17. Cresol ❑ ✓❑
18. Crotonaldehyde ❑ 0
19. Cyclohexane ❑ ❑✓
EPA Form 3510-2C(Revised 3-19) Page 27

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000350272 NC0003875 Elementis Chromium 003 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge (specify units)
Present Absent
20. 2,4-D(2,4-dichlorophenoxyacetic acid) ❑ ✓❑
21. Diazinon 0 ✓❑
22. Dicamba ❑ ✓❑
23. Dichlobenil ❑ ❑✓
24. Dichlone ❑ ✓❑
25. 2,2-dichloropropionic acid ❑ ❑✓
26. Dichlorvos ❑ ✓❑
27. Diethyl amine ❑ ✓❑
28. Dimethyl amine ❑ ❑
29. Dintrobenzene ❑ El
30. Diquat 0 0
31. Disulfoton ❑ El
32. Diuron ❑ El
33. Epichlorohydrin ❑ 0
34. Ethion ❑ El
35. Ethylene diamine ❑ 0
36. Ethylene dibromide ❑ 0
37. Formaldehyde ❑ El
38. Furfural ❑ El
EPA Form 3510-2C(Revised 3-19) Page 28

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