NC0045993_Renewal (Application)_20220610

ROI COOPER NORTH CAROLINA
Go,ernor Environmental Quality
XIICFLA.EL S. REG_A2N'
Secretor-,
LINDA CLZ.PEPPER
Interim Director
August 21, 2018
Joe Hinkle, EHS Manager
Allegheny Technologies Inc
PO Box 5030
Monroe, NC 28111-5030
Subject: Permit Renewal
Application No. NCO045993
ATI Allvac Monroe Plant
Union County
Dear Applicant:
The Water Quality Permitting Section acknowledges the August 2, 2018 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.aov/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,
Wren The ford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6300

*ATI
2020 Ashcraft Avenue, P.O. Box 5030, Monroe, NC 28110
phone:[phone] fax: [phone]
email: [e-mail]
July 31, 2018
NCDENR - Division of Water Quality
Surface Water Protection Section RECEIVED/DENR/DWR
1617 Mail Service Center AUG 0 2 2018
Raleigh, NC 27699-1617
Water Resources
Permitting Section
SUBJECT: NPDES NCO045993 RENEWAL APPLICATION
To Whom it may Concern:
Attached you will find the documentation you requested for our NPDES NCO045993 renewal
application. The documentation includes:
1. A completed application Form 1 General and Form 2C
2. Tables 1-5b — Categorical Determinations
3. Attachment 2 — Effluent Limitation Guidelines
4. Effluent Concentration Values for the Monroe Facility
5. Monroe NPDES / pond water flow diagram
6. Topographic map and surface drainage map
7. Map depicting our current discharge location
NOTE: The "Believed Absent" columns were marked if the constituent was not detected in the
analytical results, per NCDENR verbal instructions.
Please let me know if you need anything else.
Kind —Regards,
.iinkle,
0., -
Joe
EHS Manager
ATI Specialty Materials - Monroe Site

Please print or type in the unshaded areas only
/fill-in areas are spaced for elite tvne. i.e.. 12 characters/inch)
For Approved. OMB No. 2040-0086. Approval expires 5-31-92
FORM
U.S. ENVIRONMENTAL PROTECTION AGENCY
1. EPA I.D. NUMBER
1
GENERAL INFORMATION
F 110000348589 T/A o
*�El TA Consolidated Permits Program
2 13 ,4 1s
GENERAL
Read the "General Instructions" before starting.)1
LABEL ITEMS
GENERAL INSTRUCTIONS
If a preprinted label has been provided,
I. EPA I.D. NUMBER
affix it in the designated space. Review the
information carefully; if any of it is
III. FACILITY NAME
incorrect cross through it and enter the
correct data in the appropriate fill-in area
below. Also, if any of the preprinted data is
absent (the area to the left of the label
fists
V. FACILITY PLEASE PLACE LABEL IN THIS SPACE
space the information that should
appear), please provide it in the proper fill -
MAILING LIST
in area(s) below. If the label is complete
and correct you need not complete Items
I, III, V, and V I (except VI-B which must be
completed regardless). Complete all items
VI. FACILITY
if no label has been proved. Refer to the
LOCATION
instructions for detailed item descriptions
and for the legal authorization under which
this data is collected.
11. POLLUTANT CHARACTERISTICS
INSTRUCTIONS: Complete A through J to determine whether you need to submit any permit application forms
to the EPA. If you answer "yes" to any
questions, you must submit this form and the supplemental from listed in the parenthesis following the question.
Mark "X" in the box in the third column if
the supplemental form is attached. If you answer "no" to each question, you need not submit any of these forms.
You may answer "no" if your activity is
excluded from permit requirements; see Section C of the instructions. See also, Section D of the instructions
for definitions of bold-faced terms.
MAoRK "XFORM
MARK "XFORM
SPECIFIC QUESTIONS
SPECIFIC QUESTIONS
YES
YES
NO'
I
ATTACHED
ATTACHED
A. Is this facility a publicly owned treatment works
which results in a discharge to waters of the
❑
®
El
B. Does or will this facility (either existing or
proposed) include a concentrated animal
❑
®
❑
U.S.? (FORM 2A)
feeding operation or aquatic animal
production facility which results in a discharge
to waters of the U.S.? (FORM 213)
16
17
18
19
20
21
C. Is this facility which currently results in
®
❑
®
D. Is this proposal facility (other than those described
❑
®
❑
discharges to waters of the U.S. other than
in A or B above) which will result in a discharge
22
23
24
25
26
27
those described in A or B above? FORM 2C
to waters of the U.S.? FORM 2D
E. Does or will this facility treat, store, or dispose of
F. Do you or will you inject at this facility industrial or
hazardous wastes? (FORM 3)
❑
®
❑
municipal effluent below the lowermost stratum
❑
®
❑
containing, within one quarter mile of the well
bore, underground sources of drinking water?
(FORM 4)
28
29
30
31
32
33
G. Do you or will you inject at this facility any
H. Do you or will you inject at this facility fluids for
produced water other fluids which are brought to
the in oil or
❑
®
❑
special processes such as mining of sulfer by the
Frasch process, solution mining of minerals, in
❑
®
❑
surface connection with conventional
natural gas production, inject fluids used for
situ combustion of fossil fuel, or recovery of
enhanced recovery of oil or natural gas, or inject
geothermal energy? (FORM 4)
fluids for storage of liquid hydrocarbons?
34
35
36
37
38
39
FORM 11
I. Is this facility a proposed stationary source
J. Is this facility a proposed stationary source
which is one of the 28 industrial categories listed
which is NOT one of the 28 industrial categories E] ®
❑ ® ❑ instructions
❑
in the instructions and which will potentially emit
listed in the and which will potentially
100 tons per year of any air pollutant regulated
emit 250 tons per year of any air pollutant
under the Clean Air Act and may affect or be
regulated under the Clean Air Act and may affect
45
located in an attainment area? FORM 5
40 41 42 or be located in an attainment are? FORM 5 43 44
III. NAME OF FACILITY
C SKIP AT/ Specialty Materials —Monroe
Facility
1
15 116-29 30
69
IV. FACILITY CONTACT
A. NAME & TITLE last, first, & title)
B. PHONE area code & no.
704 289 4511
46 48 1 i 49 51 1 52 55
D
Joe Hinkle
2
15 1 16 45
V. FACILITY MAILING ADDRESS
A. STREET OR P.O. BOX
D. ZIP CODE
28111
C
P.O. Box 5030
15 1
16 45
B. CITY OR TOWN C. STATE
D Monroe NC
4
15 1 16 40 1 41 42 1
47 51
VI. FACILITY LOCATION
A. STREET, ROUTE NO, OR OTHER SPECIFIC IDENTIFIER
C
2020 Ashcraft Avenue
15
1 16 45
B. COUNTY NAME
Union
46 70
C. CITY OR TOWN
D. STATE
E. ZIP CODE
F. COUNTY CODE
C
Monroe
1
NC
28111
6
15
16 40
41 42
47 51
52 54
EPA FORM 3510-1 (8-90) CONTINUED ON REVERSE

rhKITIN11Fn FROM THE FRONT
VII. SIC CODES 4-di it, in order ofpriority)
A. FIRST B. SECOND
3463
(specify)
3351
(specify)
C
15
16 17
15 16 19
C. THIRD D. FOURTH
C (specify) 7 (specify)
7 7
15 16 171 15 1 16 19
VIII. OPERATOR INFORMATION
A. NAME B. Is the name listed in Item
c
TDY Industries, LLC VIII-A also the owner?
[:]YES ❑ NO
8
18
19 55
C. STATUS OF OPERATOR Enter the appropriate letter into the answer box, • if "Other," specify.)
D. PHONE area code & no.
F = FEDERAL M = PUBLIC (other than federal or state)
M
(specify)
cA
704
289
4511
S = STATE O = OTHER (specify)
56
1s
16 18
19 21
2z 2s
P = PRIVATE
E. STREET OR PO BOX
P.O. Box 5030
26 55
F. CITY OR TOWN
G. STATE H. ZIP CODE I IX. INDIAN LAND
c
Monroe
ity located on Indian lands?
NC 28111"511:1ES ❑ NO
42 42 47
B
15 16 40
X. EXISTING ENVIRONMENTAL PERMITS
D. PSD Air Emissions from Proposed Sources
° T e 04330R31
9 P
15 1 16 17 18 30
A. NPDES (Discharges to Surface Water
C
T
I
NCO045993
9
N
15
16
17
18 30
B. UIC Under round Injection of Fluids
E. OTHER (specify)
(Specify)
Stormwater Permit
c
T
0
T
e
NCS000330
s
u
s
15
16
17
18 30
15 1 16
1 17
1 18 30
C. RCRA Hazardous Wastes E. OTHER (specify) (Specify)
C T I C T a
9 R 9
15 16 17 18 30 15 16 17 18 30
XI. MAP
Attach to this application a topographic map of the area extending to at least one mile beyond property boundaries. The map must
show the outline of the facility, the location of each of its existing and proposed intake and discharge structures, each of its
hazardous waste treatment, storage, or disposal facilities, and each well where it injects fluids underground. Include all springs,
rivers and other surface water bodies in the map area. See instructions for precise requirements.
XII. NATURE OF BUSINESS(provide a brief description)
Process materials to form super alloys for aerospace, biomedical, and oil/gas markets.
XIII. CERTIFICATION see instructions
l certify under penalty of law that I have personally examined and am familiar with the information submitted in this application and
all attachments and that, based on my inquiry of those persons immediately responsible for obtaining the information contained in
the application, I believe that the information is true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibft of fine and imprisonment.
A. NAME & OFFICIAL TITLE (type or print) B. SI A URE
C. DATE SIGNED
Joe Hinkle / EHS Manager
`l-,Z `f - a01 9
COMMENTS FOR OFFICIAL USE ONLY
C
C
15
16 55
EPA FORM 3510-1 (8-90)

EPA I.D. NUMBER (cop.v /i•om hem 1 ofhornr 1) Form Approved.
OMB No. 2040-0086.
Please print or type in the unshaded areas only. Approval expires 3-31-98
FORMU.S. ENVIRONMENTAL PROTECTION AGENCY
APPLICATIOFOR PERMIT TO DISCHARGE WASTEWATER
2C r-/EPA EXISTING MANUFACTURING, JCOMMERCIAL, MINING AND SILVICULTURE OPERATIONS
NPDES Consolidated Permits Program
I. OUTFALL LOCATION
For each outfall, list the latitude and longitude of its location to the nearest 15 seconds and the name of the receiving water.
A. OUTFALL NUMBER
B. LATITUDE
C. LONGITUDE
D. RECEIVING WATER (name)
1. DEG.
2. MIN,
3. SEC,
1. DEG,
2, MIN,
3. SEC.
001
35
59
05
80
36
30
Richardson Creek
II. FLOWS, SOURCES OF POLLUTION, AND TREATMENT TECHNOLOGIES
A. Attach a line drawing showing the water flow through the facility. Indicate sources of intake water, operations contributing wastewater to the effluent, and treatment units
labeled to correspond to the more detailed descriptions in Item B. Construct a water balance on the line drawing by showing average flows between intakes, operations,
treatment units, and outfalls. If a water balance cannot be determined (e.g., for certain mining activities), provide a pictorial description of the nature and amount of any
sources of water and any collection or treatment measures.
B. For each outfall, provide a description of: (1) All operations contributing wastewater to the effluent, including process wastewater, sanitary wastewater, cooling water,
and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater. Continue on additional sheets if
necessary.
1. OUT-
2. OPERATION(S) CONTRIBUTING FLOW
3. TREATMENT
FALL
NO. (list)
a. OPERATION (li.ri)
b. AVERAGE FLOW
(include units)
a. DESCRIPTION
b. LIST CODES FROM
TABLE 2C-1
See attachment 1 -
See attached -
Catagorical Determinations
ATI Specialty Materials NPDES/
Pond Water Diagram
OFFICIAL USE ONLY (ej/lueni Rzddeline.s sub-caleR(,ries)
EPA Form 3510-2C (8-90) PAGE 1 of 4 CONTINUE ON REVERSE

CONTINUED FROM THE FRONT
C. Except for storm runoff, leaks, or spills, are any of the discharges described in Items II -A or B intermittent or seasonal?
❑ YES (complete thefollowing table) m NO (go to Section 111)
3. FREQUENCY
4. FLOW
a. DAYS PER
B. TOTAL VOLUME
2. OPERATION(s)
WEEK
b. MONTHS
a. FLOW RATE (in mgd)
(specify with units)
1 LONG TERM
2. MAXIMUM
1. LONG TERM
2. MAXIMUM
1. OUTFALL
CONTRIBUTING FLOW
(.specify
PER YEAR
C. DURATION
NUMBER (list)
(list)
average)
(specify avemge)
AVERAGE
DAILY
AVERAGE
DAILY
(m dai `)
III. PRODUCTION
A. Does an effluent guideline limitation promulgated by EPA under Section 304 of the Clean Water Act apply to your facility?
® YES (complete Item II1-13) ❑ NO (go to Section I[)
B. Are the limitations in the applicable effluent guideline expressed in terms of production (or other measure of operation)?
© YES (complete Item III-C) ❑ NO (go to Section 117
7-If you answered "yes" to Item III-B, list the quantity which represents an actual measurement of your level of production, expressed in the terms and units used in the
applicable effluent guideline, and indicate the affected outfalls.
1. AVERAGE DAILY PRODUCTION
2. AFFECTED OUTFALLS
(list out(allnumbers)
a. QUANTITY PER DAY
b. UNITS OF MEASURE
c. OPERATION, PRODUCT, MATERIAL, ETC.
(specify)
See Attachment 2
Effluent Limitation
Guidelines
IV. IMPROVEMENTS
A. Are you now required by any Federal, State or local authority to meet any implementation schedule for the construction, upgrading or operations of wastewater
treatment equipment or practices or any other environmental programs which may affect the discharges described in this application? This includes, but is not limited to,
permit conditions, administrative or enforcement orders, enforcement compliance schedule letters, stipulations, court orders, and grant or loan conditions.
❑ YES (complete the following table) ❑ NO (go to Item IV-B)
1. IDENTIFICATION OF CONDITION,
2. AFFECTED OUTFALLS
3. BRIEF DESCRIPTION OF PROJECT
4. FINAL COMPLIANCE DATE
AGREEMENT, ETC.
a. NO.
b. SOURCE OF DISCHARGE
a. REQUIRED
b. PROJECTED
B. OPTIONAL: You may attach additional sheets describing any additional water pollution control programs (or other environmental projects which may affect your
discharges) you now have underway or which you plan. Indicate whether each program is now underway or planned, and indicate your actual or planned schedules for
construction.
❑ MARK "X" IF DESCRIPTION OF ADDITIONAL CONTROL PROGRAMS IS ATTACHED
EPA Form 3510-2C (8-90) PAGE 2 of 4 CONTINUE ON PAGE 3

EPA I.D. NUMBER (eopy.jrom hem/ ofForm l)
CONTINUED FROM PAGE 2
V. INTAKE AND EFFLUENT CHARACTERISTICS
A, B, & C: See instructions before proceeding — Complete one set of tables for each outfall — Annotate the outfall number in the space provided.
NOTE: Tables V-A, V-B, and V-C are included on separate sheets numbered V-1 through V-9.
D. Use the space below to list any of the pollutants listed in Table 2c-3 of the instructions, which you know or have reason to believe is discharged or may be discharged
from any outfall. For every pollutant you list, briefly describe the reasons you believe it to be present and report any analytical data in your possession.
1.POLLUTANT
2.SOURCE
1.POLLUTANT
2.SOURCE
N/A
VI. POTENTIAL DISCHARGES NOT COVERED BY ANALYSIS
Is any pollutant listed in Item V-C a substance or a component of a substance which you currently use or manufacture as an intermediate or final product or byproduct?
mYES (list all.mch pollwantx below) ❑ NO (go to Item VI-H)
Chromium
Nickel
Copper
EPA Form 3510-2C (8-90) PAGE 3 of 4 CONTINUE ON REVERSE

r:r)NTIN1 Wn FROM THE FRONT
VII. BIOLOGICAL TOXICITY TESTING DATA
Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on any of your discharges or on a receiving water in
relation to your discharge within the last 3 years?
© YES (identify the test(s) and describe !heir purposes below) ❑ NO (go to Section V111)
Chronic Toxicity
VIII. CONTRACT ANALYSIS INFORMATION
Were any of the analyses reported in Item V performed by a contract laboratory or consulting firm?
® YES (list the name, address, and telephone number of, and pollutants analyzed by, ❑ NO (go to Section IX)
each .such laboratory or firm below)
A. NAME
B. ADDRESS
C. TELEPHONE
D. POLLUTANTS ANALYZED
(area code & no.)
(list)
Pace Analytical
9800 Kincey Ave.
[phone]
See pages VI - V9
Suite 100
Huntersville, NC 28078
IX. CERTIFICATION
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there
are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.
A. NAME & OFFICIAL TITLE (type orprint)
B. PHONE NO. (area code & no.)
Joe Hinkle / Environmental Health & Safety Manager
[phone]
C. SIGNATU
D. DATE SIGNED
EPA Form 351tC (8-90) PAGE 4 of 4

PLEASE PRINT OR TYPE IN THE UNSHADED AREAS ONLY. You may report some or all of this information EPA I.D. NUMBER (copy from Item / gf/'orm /)
on separate sheets (use the same format) instead of completing these pages. 110000348589
SEE INSTRUCTIONS.
OUTFALL NO.
V. INTAKE AND EFFLUENT CHARACTERISTICS (continued from page 3 of Form 2-C)
001
PART A —You must provide the results of at least one analysis for every pollutant in this table. Complete one table for each outfall. See instructions for additional details.
3. UNITS
4. INTAKE
2. EFFLUENT
(specifvil'blank)
(opnonaO
b. MAXIMUM 30 DAY VALUE
c. LONG TERM AVRG. VALUE
a. LONG TERM
a. MAXIMUM DAILY VALUE
({favailable)
(Ifavailable)
AVERAGE VALUE
a. CONCEN-
b. NO. OF
(1)
(1)
d. NO. OF
(1)
1. POLLUTANT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
(1) CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
a. Biochemical Oxygen
<2 0
1
mg/L
Demand (BUU)
b. Chemical Oxygen
33.0
1
mg/L
Demand (Col))
c. Total Organic Carbon
3.9
1
mg/L
(ToO
d. Total Suspended
Solids (Iss)
<5 . 0
1
mg/L
e. Ammonia (a., N)
<0 . 10
1
mg/L
VALUE
VALUE
VALUE
VALUE
(.Flow
0.039274
0.026306
MGD
g. Temperature
VALUE
VALUE
VALUE
VALUE
(,+inter)
25.00
16.5
°C
h. Temperature
VALUE
VALUE
VALUE
VALUE
(summer)
32.5
26.5
° C
MINIMUM
MAXIMUM
MINIMUM
MAXIMUM
i. pH
6.20
8.80
STANDARD UNITS
PART B — Mark "X" in column 2-a for each pollutant you know or have reason to believe is present. Mark "X" in column 2-b for each pollutant you believe to be absent. If you mark column 2a for any pollutant which is limited either
directly, or indirectly but expressly, in an effluent limitations guideline, you must provide the results of at least one analysis for that pollutant. For other pollutants for which you mark column 2a, you must provide
quantitative data or an explanation of their presence in your discharge. Complete one table for each outfall. See the instructions for additional details and requirements.
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONGTERM AVRG. VALUE
a. LONG TERM AVERAGE
AND
a
b,
a. MAXIMUM DAILY VALUE
(ifarailahle)
(ifarailable)
VALUE
CAS NO.
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(1)
(ifarailable)
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
a. Bromide
2.4
1
mg/L
(24959-67-9)
b. Chlorine, Total
u
<0 . 024
1
mg/L
Residual
c. Color
X
<25 . 0
1
Units
d. Fecal Coliform
X
, `
7.0
1
CFU100mL
e. Fluoride
(16984-48-8)
0.76
1
mg / L
f. Nitrate -Nitrite
1 0.32
1
mg/L
(as M
EPA Form 3510-2C (8-90) PAGE V-1 CONTINUE ON REVERSE

ITEM V-B CONTINUED FROM FRONT
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONGTERM AVRG. VALUE
a. LONG TERM
AND
a
b
a. MAXIMUM DAILY VALUE
(ifavailahle)
(if available)
AVERAGE VALUE
CAS NO.
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(1)
(if available)
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
g. Nitrogen,
\ /
Total Organic (as
X
<0.050
1
mg/L
N)
h. Oil and
<5.0
1
mg/L
Grease
i. Phosphorus
\
(as P), Total
X
0.32
1
mg/L
(7723-14-0)
j. Radioactivity
(1) Alpha, Total
X
1.21+-1.44
1
pCi/L
(2) Beta, Total
X
6.50+-1.95
1
pCi/L
(3)Radium,
Total
X
0.00+-0.28
1
pCi/L
(4) Radium 226,
X
0.33+-0.36
1
pCi/L
Total
k. Sulfate
(as SOJ)
8.6
1
mg / L
(14808-79-8)
1. Sulfide
X
10.10
1
mg/L
m. Sulfite
(as SO)
X
< 3. 0
1
mg / L
(14265-45-3)
n. Surfactants
X
0.14
1
mg/L
o. Aluminum,
Total
X
<100
1
ug/L
(7429-90-5)
p. Barium, Total
(7440-39-3)
8.0
1
ug/L
q. Boron, Total
(7440-42-8)
306
1
ug/L
r. Cobalt, Total
<5.0
1
ug/L
(7440-48-4)
s. Iron, Total
1040
1
ug/L
(7439-89-6)
I. Magnesium,
Total
u
7150
1
ug/L
(7439-95-4)
, \
u. Molybdenum,
Total
280
1
ug/L
(7439-98-7)
v. Manganese,
Total
u
370
1
ug/L
(7439-96-5)
w. Tin, Total
<5.0
1
Ug/L
(7440-31-5)
x. Titanium,
Total
X
<5.0
1
ug/L
(7440-32-6)
EPA Form 3510-2C (8-90) PAGE V-2 CONTINUE ON PAGE V-3

CONTINUED FROM PAGE 3 OF FORM 2-C I
EPA I.D. NUMBER (enwfrom Gem l ajl•brtn I) OUTFACE NUMBER
PART C - If you are a primary industry and this outfall contains process wastewater, refer to Table 2c-2 in the instructions to determine which of the GC/MS fractions you must test for. Mark "X" in column 2-a for all such GC/MS
fractions that apply to your industry and for ALL toxic metals, cyanides, and total phenols. If you are not required to mark column 2-a (secondary industries, nonprocess wastewater outfalls, and nonrequired GC/MS
fractions), mark "X" in column 2-b for each pollutant you know or have reason to believe is present. Mark "X" in column 2-c for each pollutant you believe is absent. If you mark column 2a for any pollutant, you must
provide the results of at least one analysis for that pollutant. If you mark column 2b for any pollutant, you must provide the results of at least one analysis for that pollutant if you know or have reason to believe it will be
discharged in concentrations of 10 ppb or greater. If you mark column 2b for acrolein, acrylonitrile, 2,4 dinitrophenol, or 2-methyl-4, 6 dinitrophenol, you must provide the results of at least one analysis for each of these
pollutants which you know or have reason to believe that you discharge in concentrations of 100 ppb or greater. Otherwise, for pollutants for which you mark column 2b, you must either submit at least one analysis or
briefly describe the reasons the pollutant is expected to be discharged. Note that there are 7 pages to this part; please review each carefully. Complete one table (all 7 pages) for each outfall. See instructions for
additional details and requirements.
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONG TERM AVRG.
a. LONG TERM
AND
a.
b,
c.
a. MAXIMUM DAILY VALUE
(rjavailable)
VALUE (iIavadable)
AVERAGE VALUE
CAS NUMBER
TESTING
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(1)
i available
(./ )
REQUIRED
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
METALS, CYANIDE, AND TOTAL PHENOLS
1M. Antimony, Total
\ /
X
<5 . 0
1
ug/L
(7440-36-0)
2M. Arsenic, Total
�/
X
<10 . 0
1
ug/L
(7440-38-2)
3M. Beryllium, Total
�/
X
\
X
<1 . 0
1
ug/L
(7440-41-7)
4M. Cadmium, Total
\/ /\
X/
<1 . 0
1
ug/L
(7440-43-9)
5M. Chromium,
�/
<5 . 0
1
ug/L
Total (7440-47-3)
X\
6M. Copper, Total
\/
15.4
1
ug/L
(7440-50-8)
/\
7M. Lead, Total
X
<5 . 0
1
ug/L
(7439-92-1)
8M. Mercury, Total
<0.20
1
ug/L
(7439-97-6)
9M. Nickel, Total
21.8
1
ug/L
(7440-02-0)
10M. Selenium,
X
<10 . 0
1
ug/L
Total (7782-49-2)
11M. Silver, Total
v
< 5 . 0
1
ug/L
(7440-22-4)
^
12M. Thallium,
\ /
X
<10 . 0
1
ug/L
Total (7440-28-0)
13M. Zinc, Total
26.5
1
ug/L
(7440-66-6)
14M. Cyanide,
<0 008
1
ug/L
Total (57-12-5)
.
15M. Phenols,
.011
1
ug/L
Total
DIOXIN
2,3,7,8-Tetra-
chlorodibenzo P-
FX
DESCRIBE RESULTS
Dioxin(1764-01-6)
Results were non -detectable (ND) at 10 pg/L reporting limit
EPA Form 3510-2C (8-90) PAGE V-3 CONTINUE ON REVERSE

CONTINUED FROM THE FRONT
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONG TERM AVRG.
a. LONG TERM
AND
a.
b.
C.
a. MAXIMUM DAILY VALUE
(ifavailable)
I VALUE (ifavailable)
AVERAGE VALUE
CAS NUMBER
TESTING
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(1)
(ifanni/able)
REQUIRED
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
GC/MS FRACTION - VOLATILE COMPOUNDS
1V. Accrolein
x
X
<5.0
(107-02-8)
1
ug/L
2V. Acrylonitrile
x
X
(107-13-1)
<50.0
1
ug/L
3V.Benzene
x
X
(71-43-2)
<2.0
1
ug/L
ro-
methvl) Ether
X
5.0
1
(542-88-1)
llg/L
5V. Bromoform
x
X
<2.0
(75-25-2)
1
ug/L
Carbon
Tetrachloride
x
x
<2.0
1
ug/L
(56-23-5)
7V. Chlorobenzene
x
X
`2.0
1
ug/L
(108-90-7)
bromomethane
<2.0
1
ug/L
(124-48-1)
/X\
/X\
9V. Chloroethane
x
X
(75-00-3)
<2.0
1
ug/L
10V. 2-Chl the
5- Ether
<5.0
1
ug/L
(110-
(110-75-8)
11 Chloroform
X
(67-
(s7-66-3)
<2.0
1
ug/L
12V. Dichloro-
broane
X
X
<2.0
1
(75-27-4)
-27-4)
ug/L
13V. Dichloro-
X
7omethane
75-71-8)
<2.0
1
ug/L
(5-71
14V. 1,1-Dichloro-
x
X
<2.0
1
ug/L
ethane (75-34-3)
15V. 1, 2-Dichloro-
x
X
ethane (107-06-2)
<2.0
1
ug/L
16V. 1,1-Dichloro-
x
X
<2.0
1
ug/L
ethylene(75-35-4)
17V. 1,2-Dichloro-
x
X
<2.0
1
ug/L
propane (78-87-5)
18V.1,3-Dichloro-
propylene
\ /
`
X
<5.0
1
(542-75-6)
/X\
ug/L
19V. Ethylbenzene
X
<2.0
1
ug/L
(100-41-4)
20V. Methyl
%
<2.0
1
ug/L
Bromide (74-83-9)
21 V. Methyl
2.0
1
ug/L
Chloride (74-87-3)
EPA Form 3510-2C (8-90) PAGE V-4 CONTINUE ON PAGE V-5

CONTINUED FROM PAGE V-4
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONG TERM AVRG.
a. LONG TERM
AND
7E1'R
b.
e.
a. MAXIMUM DAILY VALUE
(if avaUable)
VALUE (ifavaNable)
AVERAGE VALUE
CAS NUMBER
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(ifavailable)
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
GC/MS FRACTION -VOLATILE COMPOUNDS (continuer)
22V. Methylene
x
X
<2.0
1
ug/L
Chloride(75-09-2)
23V. 1,1,2,2-
Tetrachloroethane
X
X
<2.0
1
79-34-5
ug/L
24V. Tetrachloro-
<2.0
1
ug/L
ethylene (127-18-4)
25V. Toluene
X
X
<2.0
1
ug/L
(108-88-3)
26V. 1,2-Trans-
Dichloroethylene
X
X
<2.0
1
ug/L
156-60-5
27V. 1,1,1-Trichloro-
<2.0
1
ug/L
ethane (71-55-6)
28V . 1,1, 2-Trichloro-
X
<2.0
1
ug/L
ethane (79-00-5)
29V Trichloro-
<2.0
1
ug/L
ethylene(79-01-6)
30V. Trichloro-
fluoromethane
\ /
X
\ /
x
<2.0
1
ug/L
75-69-4
, `
,\
31V. Vinyl Chloride
X
/`
X
<2 0
1
ug/L
(75-01-4)
GC/MS FRACTION -ACID COMPOUNDS
1 A. 2-Chlorop henol
<4.9
1
ug/L
(95-57-8)
2A. 2,4-DichlOFO-
x
<4.9
1
ug/L
phenol (120-83-2)
3A.2,4-Dimethyl-
\X/
X
<9 8
1
ug/L
phenol(105-67-9)
4A.4,6-Dinitro-0-
\/ ,\
X
<20 0
1
ug/L
Cresol(534-52-1)
5A. 2,4-Dinitro-
<49. 0
1
ug/L
phenol (51-28-5)
6A.2-Nitrophenol
�/
<4.9
1
ug/L
(88-75-5)
^
7A. 4-Nitrophenol
x
<49.0
1
ug/L
(100-02-7)
8A. P-Chloro-M-
V /
X
<5. 0
1
ug/L
Crescl(59-50-7)
9A. Pentachloro-
\,
X
<9. 8
1
ug/L
phenol(87-86-5)
10A. Phenol
X
X/\
\/ /\
<4.9
1
ug/L
(108-95-2)
11 A. 2,4,6-Trichloro-
x
<4.9
1
ug/L
phenol (88-05-2)
EPA Form 3510-2C (8-90) PAGE V-5 CONTINUE ON REVERSE

CONTINUED FROM THE FRONT
2. MARK "X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
C.LONG TERM AVRG.
a. LONG TERM
AND
a.
b
c.
a. MAXIMUM DAILY VALUE I
(i/mailable)
VALUE (ifavatlable)
AVERAGE VALUE
CAS NUMBER
TESTING
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(ifavailuble)
REQUIRED
PRESENT
ABSENT
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
GC/MS FRACTION - BASE/NEUTRAL COMPOUNDS
1B. Acenaphthene
X
<4.9
1
ug/L
(83-32-9)
2B. Acenaphtylene
�/
x
�/
x
<4.9
1
ug/L
(208-96-8)
3B. Anthracene
X
<4.9
1
ug/L
(120-12-7)
X
<49. 0
1
ug/L
(92 87-5)dine
(92-87-5)
5B. Benzo (a)
Anthracene
X
X
<4.9
1
ug/L
(56-55-3)
6B. Benzo (a)
�/
X
<4.9
1
ug/L
Pyrene (50-32-8)
/�
7B.
<4.9
1
ug/L
(205-99-2)
8B.Benzo (Xht)
<4.9
1
ug/L
Perylene (191-24-2)
9B. Benzo (k)
Fluoranthene
X
X
<4.9
1
ug/L
(207-08-9)
10B. Bis (2-('hl(,ro-
ethoxv) Methane
X
<9 8
1
ug/L
(111-91-1)
11 B. Bis (2-('hlaro-
etho Ether
X
<4.9
1
ug/L
(111-44-4)
12B. Bis (2-
Chloroisopropyo
` /
X
<4.9
1
ug/L
Ether (102-80-1)
13B. Bis (2-/ahl l-
hexer) Phthalate
` /
y
\ /
X
1
(117-81-7)
<4.9
ug/L
148. 4-Bromophenyl
Phenyl Ether
` /
X
<4.9
1
ug/L
(101-55-3)
Butyl Benzy85-68-
X
X
<4 9
1
ug/L
Phthalate (85-68-7)
Phthalate
16B. 2-Chloro-
naphthalene
\ /
X
<4.9
1
ug/L
(91-58-7)
178. 4-Chloro-
phenyl Phenyl Ether
X
<4.9
1
ug/L
(7005-72-3)
/\
18B. Chrysene
/\
x
<4.9
1
ug/L
(218-01-9)
19B. Dibenzo (u.h)
Anthracene
X
<4.9
1
ug/L
(53-70-3)
20B.1,2-Dichloro-
X
<4.9
1
ug/L
enzene(95-50-1)
/ A
rb21B.1,3-Di-chloro-
�/
�/
x
<4.9
1
ug/L
enzene(541-73-1)
^
EPA Form 3510-2C (8-90) PAGE V-6 CONTINUE ON PAGE V-7

CONTINUED FROM PAGE V-6
2. MARK"X"
3. EFFLUENT
4. UNITS
5. INTAKE (optional)
1. POLLUTANT
b. MAXIMUM 30 DAY VALUE
c. LONG TERM AVRG.
a. LONG TERM
AND
a.
b
C.
a. MAXIMUM DAILY VALUE
(iJavadahle) I
VALUE (iJ'availahle)
AVERAGE VALUE
CAS NUMBER
TESTING
BELIEVED
BELIEVED
d. NO. OF
a. CONCEN-
b. NO. OF
(1)
(1)
(1)
(1)
(i(avvilable)
REQUIRED
PRESENT
ABSENT
CONCENTRATION 1
(2) MASS
CONCENTRATION
(2) MASS
CONCENTRATION
(2) MASS
ANALYSES
TRATION
b. MASS
CONCENTRATION
(2) MASS
ANALYSES
GC/MS FRACTION - BASE/NEUTRAL COMPOUNDS (cunnnue,�
22B. 1,4-Dichloro-
<4.9
1
ug/L
benzene(106-46-7)
23B. 3,3-Dichloro
<24 . 5
1
llg/L
benzidine (91-94-1)
24B. Diethyl
Phthalate (84-66-2)
<4.9
1
ug/L
ethyl
la
Phthalate
x
<g.g
1
ug/L
(131 -11-3)
26B. Di-N-Butyl
\ /
�(
<4.9
1
ug/L
Phthalate (84-74-2)
27B. 2,4-Dinitro-
<4.9
1
ug/L
toluene(121-14-2)
28B. 2,6-Dinitro-
<4.9
1
ug/L
toluene (606-20-2)
298. Di-N-Octyl
<4.9
1
ug/L
Phthalate (117-84-0)
30B. 1,2-Diphenyl-
hydrazine (as Azo-
u
u
<4.9
1
ug/L
benzene)(122-66-7)
31B.Fluoranthene
x
X
<4.9
1
ug/L
(206-44-0)
32B. Fluorene
x
x
<4.9
1
ug/L
(86-73-7)
33B. Hexachloro-
x
X
<4.9
1
ug/L
benzene(118-74-1)
348. Hexachloro-
<4.9
1
Ug/L
butadiene(87-68-3)
Hexachloro-
cyclopentadiene
cycl
X
<g . g
1
ug/L
(77-47-4)
36B Hexachloro-
<4.9
1
ug/L
ethane(67-72-1)
37B.Indeno
(1,2,3-cc)Pyrene
\ ,
y
\ /
X
<4.9
1
ug/L
/\
/ \
38B.Isophorone
X
<4.9
1
ug/L
(78-59-1)
39B. Naphthalene
\/ ,\
X
<4.9
1
ug/L
(91-20-3)
40B. Nitrobenzene
<4.9
1
ug/L
(98-95-3)
418. N-Nitro-
soli
sodimethylamine
<4.9
1
ug/L
(62-75-9)
42B. N-Nitrosodi-
N-Propylamine
\ /
X
<4.9
1
ug/L
(621-64-7)
EPA Form 3510-2C (8-90) PAGE V-7 CONTINUE ON REVERSE

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 1: Flows to NPDES Outfall and Cateeorical Determination
Cate
orical Standards
for Constituents
5ubjecr ro
Cr
Ni
F
Cn
I
Pb
Zn
NH,
Metals)
C-codc.t
40 CFR
Regulated
Daily Ma:.
Maz Mo. Avg
Daily Maz
Maz Mo. Avg
Daily Maz
Max. Mo. Avg Daily Maz
Maz Mo. Avg
Daily M1taz
Maz Mo. Avg
Daily Maz Maz Mo. Avg Daily Maz Maz )to. 1,0
Wastewater Source
Production
sr.ndard!
Regulation
Constihmt
(Ib/MM lb)
(Ib/MM Ili)
(Ib/MM Ib)
(lb/MM Ib)
(Ib/MM lb)
(lb/MM W)
(lb/MM Ib)
(IblMM Ib)
(lb/MM Ib)
(lb/MM Ib)
(lb/MM Ib)
(lb/MM Ib)
(lb/MM Ib)
(lb,'}INI Ib,
Cooling Towers & Non -Contact
N/A
No
Cooling Water
_
Forging Equiprnent Cleaning
Ni Co
Yes
1 471.32 ('
Cr, Ni, F
1 0.002 1
0.0006
0.002
1 0.002-; T
0.238
0.106
Wastewater
Ti
Yes
471.62 (i)
Cn, Pb, Zn, NH,-N, F
2.38
1,06
1 0.012
1 0.005
0.017
0.008
1 0.059
1
5.33
2.31
Contact Cooling Water
Ni-Co
Yes
471.32 k)
Cr, Ni. F
0.016
0.007
0.026
0.019
2.82
1.25
!0.02
Ti
Yes
471.62 h
O
Cr,Pb, Zn, NH,-N, F
Cr, Ni, F
0.069
0.028
0.103
0.069
5.95
11.2
2.64
4.94
0.029
0.012
0.042
0.02
0.146
13.3
5.86
.. .
Forging Press Hydraulic Fluid
Ni-Co
Yes
471.32(I)
26.7
6.5
0.293
0.121
0.424
0.202
1.48
135
59 :
Leakage
Ti
Yes
471,620)
Cr, Pb, Zn, NH,-N, F
Cr, Ni, F
0.091
0.037
0.136
0.091
60.1
14.7
Miscellaneous Wastewater Sources
Ni-Co
Yes
471.32
0 856
1.99
0.01
0.004
0.014
0.007
0.048
4.32
Li
Ti
Yes
471.62 (x
Cn. Pb, Zn, NH,-N, F
Cr, N4 F
0.028
0.011
0.042
0.028
1.93
4.49
Rolling Contact Cooling Water
Ni-Co
Yes
411.32 a
12.9
0.142
1 0,059
1 0.205 1
0.098
1 0.713
0.298
1 65.1
28.0
Ti
Yes
1 471.62 (b)
I Ca, Pb, Zn. NHrN, F 29.1
Stormwater
A
No

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 2: Production Related to CateLyorical Standards
Dept
Operation #
Production (lb/ r)
Ni-Cr AlloysAlloysl Ti Alloys
Pass -Throw hs
Production Exposure
(lb/ r)
Ni-Cr AlloysAlloysl Ti Alloys
Ni-Cr AlloysAlloysl
Ti Alloys
Press Quench
GFM Quench
M13,719,052
156,688,186
137,190 1
226,826
1
1
2
1 137,190
56,688,186
453,652
GFM
1
2,682,6781
7
1 10
1 6,033,364
226,826,780
Totals:
96,170,554
283,968,618
Shape Mill
1170-039
941,209
42,366
18
18
1 16,941,762
762,588
Merchant Mill
1170-038
369,446
173,251
18
18
6,650,028
3,118,518
18" Mill
1170-037
349,799
501,277
18
18
6,296,382
9,022,986
Totals:
29,888,172
12,904,092
rNotesior iaDle.L:
1) Production (lb/yr) and pass -through values were provided by plant personnel.
2) Production Exposure (lb/yr) = Production (lb/yr) x Pass -Through
Prepared by
Checked by Ilk
7/30/2018

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Tahle 3: Calculation of Allowable Mass Limits Based on Categorical Standards
P Wia,iea Er
P,wasl s,,ffs Toral
tO CFR 471.AA Atk-u (ulabf lb)
6Laa Allowree
Torat Flaw
Nkatl
-pain
now
W4a
1 M
Isk,add, A+ Mai
(ta'Oay"
twdry
Wuraw.rer Sparc
( ) (WM
(.71) (IWdry
Nis.
Tiraeiwa
Cr NI F a tro Zv NH,
h to F e2a ro ra Na.
Cr
NI PI Ca I Po
Z. N%
Cr
NI
F Ca
Pli L Nap
Cooling Towers &Non -Comm Coaling
Water
50,303
96.170954 394682
361
OA02 0.002 0.238
0.0006 0.. 0.106
0.00077 0.00077 0.09155
0.00023 0.00077 0.0{0'78
Purging Equipment Cleaning Wastewmer
1,627
283968,619 11}5,8T4
1066
2.38 0.012 0.017 0.059 5.33
1.06 0.005 0.008 0.025 2.35
2.7033R 0.01363 0.01931 0.06702 6.05421
120403 0,00568 0.00909 0.02W0 2.66931
96,170,554 3R4,682
IZw
0.019 0.026 2.92
0.007 O.OIB 1.25
0.00692
0.01000 1.08480
0.00269 0.00692 0.48085
Contact Cooling Water
5,000
283968,618 I,I35,874
3735
4.95 0.029 0.042 0.146 13.3
264 0.012 0.02 0,02 5.86
6.75845 0.07299 0.04771 O.I6584 I5. 10713
2.99971 0.01363 0.02272 0.02272 6.G5622
% 170 54 394682
0
0.069 0.t03 I1.2
0.028 0.069 4.94
N/A
N/A N/A
NIA
NIA
N/A
Forging Press Hydraulic Fluid I.enkage
0
283 8 618 1 135 674
0
60,1 0293 0.424 L48 135
26.7 0.121 0,202 0.616 39.2
N/A N/A N/A
N/A WA
IM,058,726 504,111
0
0.091 0.136 11.7
0.037 0.091 6,5
WA
N/A N/A
Miscellaneous Wastewater Sources
0
296,872,710 1,187491
0
1.97 OAI 0.014 0.018 432
0.856 0* 0.007 Q02 i,9
WA WA N/A
WA N/A
NIA WA
WA WA WA
29.888,172 119,553
1,993
0.028 0.012 4.49
O.OII 0.02D 1.99
0.00335
0.00502 0.53679
0.00132 0.00333
02TA1
Rolling Contact Cooling Water
2,854
12904A92 51,616
861
29.1 10.142 10.20510.1I7 63.1
12.9 0.039 0.098 0298 28.6
1.10204 0.00733 001058 0.03680 736023
0.66585 0.00303 O.Oa506 0.01538 1.47623
ax ofD..i, .Avg
142036
Stearn -ter ax otaay M.x
1,887,825
row OO--I TOW
94503
of D.
201, 20
mMah
oA
25
994 6
.0
0.2 834.5280
00..20064
0O.,6Oi 5l
252,6268 5 00..07%22
0L.3031]7 20..306668 31M0..860626afres
TnW Flow Eased
1,947,40
on: AMneunxx.
oW
9trlc,irnut
mstve Mau
T9ased
obin' mMa>LOF Mn
Bad mAamal ToW
5.941
.
0440
6.497 2659988 18540 ?b.Mi
0.629 I%.810 1.372 L975
92.752 6434.519
6.863 624.061
2281
0.169
5
0.440
126 7
18093
3759
87fi
2963789 822ual J715.408
274.899
qsaira4 by
1 087
Total Flow Regulated for Cr &Ni
3,619
Tatat flow Re uWted fox F:
9 1
TotalFiow Reg For Cn, Pb, Zq & NH,:
6,662
l
No for Table 3: ClecMd ui
1) Individual Total Flows (pl/day) for each praxes wera from facility records, except Stonawater, which are fmni Table 5b. Production Exposure (Mr) value are from Table 2,
2) Production Exposure (lb/day).,a - Production Exposure (IWyr) / (50 wk/yr a 5 day/wk)
3) Production -Specific Tom] Flow, (gak'day) = Total Flaw (ga0day) is (Production Expmwq (lb/day) / I Production Exposure (Iblday)]
4) 40 CFR 471,XX Allowance llblMM Its) values arc fiarn 40 CFR 471.32 and 471,62, n applicable.
5) Mons Allowamr'
a) (lb'day),-(I-day Mon Allowance(lb/MMIb)x Pmdue mExpm=(IWdayW/(I,W0,0001MM)
b) (INdey)®ab wa= (Monthly Max Allowance (lb(MM )b) x PTodw6on Exposure (Ib/day)wa] /(1,000,000/MM)
6) Tom] Flows Regdated (gaVday).
a) m For Cr & Ni - the suof Production -Specific Total Flows associated with Nickel production and e-ponding 40 CFR 471.XX allowances.
b) For F= the sum of PiodmionSpecific Total Flows associated with Nickel 8011 Titanium production and conapooling 40 CFR 471.XX allowmees.
c) For Ca Pb, Zn, & NFIs = the sum of ProduaionSpecifx Tom] Flows asseciaied with Titanium production aM a yaading 40 CFR 471.XX allowance..
7) Total Flow (gaVday) "bnad on" values are fmtn Table 5b.
8) Masa Allowance Tmeis are the sums arm= aiewa secs in each column.
9) Alternative Mass Urnit'I'otals - Mass Allowance Totals Ob/day) x Total Flow (galtday) / Total Flow Regulated (gal/day)[poltulant-dependent]
10) Limiu based on armual toW srortnwacer values yield the lowest (most wnxrvadve) alernative mesa Iimir Imals. These will be used in Tabk 4.
7/6MN18

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 4: Calculation of Allowable Concentrations
Based on Categorical Standards
Parameters
Allowable Permit Limits using
Annual Total Stormwater Flow
Daily
Max
Monthly Avera e
1 (lb/day)
(m /L)
(lb/day)
(m /L)
Chromium
0.440
0.37
0.169
0.14
Nickel
0.629
0.52
0.440
0.37
Fluoride
196.8
164
87.4
73
Cyanide
1.372
1.14
0.569
0.47
Lead
1.975
1.64
0.938
0.78
Zinc
6.863
5.71
1.692
1.41
Ammonia
624.1
519
274.9
229
Total flow concentrations based on: 1 144,087 gaUday
NOTE:
1) Mass allowance values are alternative mass limits obtained from Table 3 (using annual total stormwater
flow), rounding to the nearest 0.001, except for fluoride and ammonia, which are rounded to the nearest 0.1.
2) Allowable Permit Limits (Total Flow):
a) (lb/day) values are those calculated in Table 3.
b) (mg/L) = (lb/day) / [Total Flow (gal/day) x 8.344 lb/gal / 1,000,000
Prepared by
Checked by
7/30/2018

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table .5a: Monroe, NC Rainfall Data for
CY 2017
Month in CY
2017
CY 2017 Precipitation (in)
Daily Max
Daily Avg
on y
Total
Jan
1.14
0.14
4.49
Feb
0,56
0.04
1.17
Mar
0.63
0.06
1.96
Apr
2.52
0.19
5.6
May
1.39
0.16
5.01
Jun
2.35
0.17
5.03
Jul
1.59
0.16
4.84
Aug1.25
0.16
4.82
Sep
1.06
0.11
3.32
Oct
1.1
0.05
1.66
Nov
0.19
0.02
0.52
Dec
1.27
0.08
2.47
(in/hr)
0.10500
0.00792
0.00467
Notes for Table 5a:
1) Monthly CY 2017 precipitation data (in) for Monroe, NC was obtained online from
WeatherUnderground.com.
2) Intensity (in/hr):
a) Daily Max or Daily Avg = max of monthly data (in) / 24 hr/day
b) Monthly Total = sum of monthly totals (in) / 8760 hr/yr
Table 5b: Estimation of Stormwater Discharge
Total
Industrial Ponds
Surface Area (ft.)
1,4
E 150,667
33.9
30.4 1 3.5
acre
Runoff Coefficient
0.80 1
Max. of Daily
Avg
0.0079
Max. Rainfall Intensity (in/hr)
Max.of Daily
0.1050
Based on
Annual Total
0.0047
Max. of Daily
0.2198
0.1921 0.0277
Avg
(W/sec)
of Daily
2.9211
2.5536 0.3675
1Max
Based on
Annual Total
0.1308
0.1143 0.0165
Discharge
Max. of Daily
Avg
142,036
of Daily
1,887,825
(gal/day)
Max
Based on
g4,503
Annual Total
Notes for Table 5b:
1) Surface Area:
a) (ftz) was estimated using Google Earth and CEC's knowledge of the drainage area.
b) (acre) = (ft�) / 43,560 ft=/acre
2) Runoff coefficient values are from online sources.
3) Max. Rainfall Intensity (in/hr) values are from Table 5a.
4) Discharge:
a) (ft')(for Industrial and Ponds) = Surface Area (acre) x Runoff Coefficient x Max.
Rainfall Intensity (in/hr)
b) (ft )(Total) = sum of Industrial and Pond values
c) (gal/day) = (fi /sec) x 3600 sec/hr x 24 hr/day x 7.48 gaVW
Prepared by
_kbx---
Checked by
7/30/2018

OAT
Monroe Facility
NPDES Permit # NCO045993
Attachment - 2
Effluent Limitation Guidelines
Effluent Limitations Guideline
Avg.
Daily
Parameters
Prod.
Chromium
Nickel
Fluoride
Cyanide
Lead
Zinc
Ammonia
(M. lb.)
Nickel -Cobalt Forming (40 CFR 471.32)
BAT
Actual
BAT
Actual
BAT
Actual
BAT
Actual
BAT
Actual
BAT
Actual
BAT Actual
(c)
Daily Max
0.125
0.028
0.003
0.042
0.005
4.49
0.56
Rolling contact cooling water
Mnthly Avg.
0.125
0.011
0.001
0.028
0.003
1.99
0.25
(0
Daily Max
0.40
0.002
0.001
0.002
0.001
0.238
0.095
Forging equip. cleaning wastewater
Mnthly Av .
0.40
0.0006
0.000
0.002
0.001
0.106
0.042
(k)
Daily Max
0.40
0.018
0.007
0.026
0.010
2.82
1.13
Forging contact cooling water
Mnthly Avg.
0.40
0.007
0.003
0.018
0.007
1.25
0.50
(1)
Daily Max
0.40
0.069
0.028
0.103
0.041
11.2
4.5
Forging ress h d. fluid leakage
Mnthly Avg.
0.40
0.028
0.011
0.069
0.028
4.94
1.98
(ff)
Daily Max
0.53
0.091
0.048
0.136
0.071
14.7
7.7
Misc. Wastewater Sources
Mnthly Avg.
0.53
0.037
0.019
0.091
0.048
6.5
3.4
Titanium Forming (40 CFR 471.62)
(b)
Daily Max
0.054
29.1
1.6
0.142
0.008
0.205
0.011
0.713
0.038
65.1
3.5
Rolling contact cooling water
Mnthly Avg.
0.054
12.9
0.69
0.059
0.003
0.098
0.005
0.298
0.016
28.6
1.5
(h)
Daily Max
1.18
5.95
7.04
0.029
0.034
0.042
0.050
0.146
0.173
13.3
15.7
Forging contact cooling water
Mnthly Avg.
1.18
2.64
3.12
0.012
0.014
0.02
0.024
0.02
0.024
5.86
6.93
(i)
Daily Max
1.18
2.38
2.82
0.012
0.014
0.017
0.020
0.059
0.070
5.33
6.31
Forging equip. cleaning wastewater
Mnthly Avg.
1.18
1.06
1.25
0.005
0.006
0.008
0.009
0.025
0.030
2.35
2.78
0)
Daily Max
1.18
60.1
71.1
0.293
0.347
0.424
0.502
1.48
1.751
135
160
Forging ress h d. fluid leakage
Mnthly Avg.
1.18
26.7
31.6
0.121
0.143
0.202
0.239
0.616
0.729
59.2
70.0
(x)
Daily Max
1.24
1.93
2.39
0.01
0.012
0.014
0.017
0.048
0.059
4.32
5.34
Misc. wastewater sources
Mnthly Avg.
1.24
0.856
1.06
0.004
0.005
0.007
0.009
0.02
0.025
1.9
2.35
Daily Max (lbs.):
11.1187
11.129
99
F-CT415
0.600
2.09
othly Avg. (Ibs.):
11.113�
O.U87
43.9
0.171
11.2ti6
0.82
!84]

AT I
Chromium
ug/L,
Lead
ug/L,
Nickel
ug/L
Zinc
ug/L
Jun-15
<5.0
<5.0
31.0
37.2
6.2
<5.0
30.1
37.2
Jul-15
<5.0
<5.0
26.9
26.8
8.4
<5.0
66.3
68.2
Aug-15
7.1
<5.0
31.5
26.8
<5.0
<5.0
25.0
20.7
Sep-15
<5.0
<5.0
21.9
20.7
<5.0
<5.0
21.4
18.6
Oct-15
5.5
<5.0
22.9
22.7
5.2
<5.0
27.6
27.4
Nov-15
12.9
<5.0
38.6
40.0
5.6
<5.0
24.2
40.6
Dec-15
5.6
<5.0
23.8
37.0
10.6
<5.0
53.4
51.0
Jan-16
7.1
<5.0
33.4
53.4
10.2
<5.0
34.8
51.6
Feb-16
7.2
<5.0
33.6
51.4
10.3
<5.0
38.0
49.2
Mar-16
<5.0
<5.0
30.2
49.7
6.9
<5.0
31.4
40.4
Apr-16
<5.0
<5.0
29.3
34.0
<5.0
<5.0
30.1
37.7
May-16
5.5
<5.0
39.3
31.2
24.6
<5.0
89.4
66.8
Effluent Concentration Values
Monroe NC Facility NPDES Permit NCO045993
Chromium
ug/L
Lead
ug/L
Nickel
ug/L
Zinc
ug/L
Jun-16
<5.0
<5.0
30.6
18.0
<5.0
<5.0
34.4
20.7
Jul-16
<5.0
<5.0
30.8
17.5
8.4
<5.0
42.7
25.0
Aug-16
<5.0
<5.0
27.9
17.4
<5.0
<5.0
27.4
18.4
Sep-16
<5.0
<5.0
24.0
17.6
<5.0
<5.0
26.5
19.3
Oct-16
<5.0
<5.0
21.0
17.3
<5.0
<5.0
23.7
18.4
Nov-16
<5.0
<5.0
22.2
22.3
<5.0
<5.0
20.4
18.7
Dec-16
5.4
<5.0
26.4
27.4
5.6
<5.0
23.4
27.2
Jan-17
8.3
<5.0
27.8
43.8
5.1
<5.0
26.4
35.2
Feb-17
<5.0
<5.0
26.4
29.5
<5.0
<5.0
24.9
32.1
Mar-17
7.4
<5.0
31.2
34.4
<5.0
<5.0
28.2
35.8
Apr-17
7.3
<5.0
26.6
29.5
7.2
<5.0
29.4
33.0
May-17
7.2
<5.0
31.9
29.2
5.6
<5.0
28.4
27.4
Chromium
ug/L,
Lead
ug/L
Nickel
ug/L
Zinc
ug/L,
Jun-17
6.2
<5.0
32.4
27.9
<5.0
<5.0
31.8
25.7
Jul-17
5.6
<5.0
32.1
28.7
<5.0
<5.0
24.7
20.7
Aug-17
7.0
<5.0
26.6
18.3
<5.0
<5.0
21.0
17.0
Sep-17
7.6
<5.0
26.4
23.0
<5.0
<5.0
18.0
15.5
Oct-17
6.4
<5.0
22.9
24.2
<5.0
<5.0
17.4
14.0
Nov-17
9.0
<5.0
29.6
41.4
7.6
<5.0
25.2
32.6
Dec-17
<5.0
<5.0
21.1
29.5
6.3
<5.0
25.0
37.5
Jan-18
9.7
<5.0
35.5
48.8
28.4
<5.0
29.1
50.2
Feb-18
16.8
<5.0
51.3
68.5
7.7
<5.0
27.3
39.2
Mar-18
5.9
<5.0
27.4
42.9
6.1
<5.0
22.2
35.5
Apr-18
5.6
<5.0
26.2
43.0
5.2
<5.0
25.8
32.6
May-18
6.1
<5.0
28.4
35.5
10.5
<5.0
38.5
43.8

�ATI
ATI Specialty Materials — Monroe NPDES / Pond Water Diagram
Monthly Avg. Discharge:
Max = 0.507 MGD
Min = 0.056 MGD
3-Year Avg. = 0.183 MGD
Forging Equipment
1,427 GPD
Richardson Creek
Cooling Towers &
Non -Contact Cooling Water
50,303 GPD

%
y�fr law
Ms
rn,l
it _ I.� c�(�..� ��. �•ti �.`,'� `-�-
�.:.---�4 �• ��,-� y '� �� �'"`�1 r'",,.../�; ,:.:. r ,,,^,!•'ram^ - . � ' ��.
Imp
Nil
�w �_ �r .nl.J tom' — �` 7"-i� � �� /1 • ? � � ✓ IM
Approximate Location of Subject Property ;?
i
REFERENCE:
THE ABOVE GEOGRAPHIC INFORMATION SYSTEMS (GIS) COVERAGE WAS OBTAINED FROM THE NORTH CAROLINA S
DEPARMENT OF TRANSPORTATION 1h£BSITE (NCDOT) PLEASE NOTE THIS MAP IS FOR INFORMATIONAL PURPOSES
ONLY. IT IS NOT MEANT FOR DE SIGN. LEGAL, OR ANY OTHER USES. THERE ARE NO GUARANTEES ABOUT ITS ACCURACY -• \�• ,
S&ME, INC. ASSUMES NO RESPONSIBILITY FORANY DECISION MADE OR ANY ACTIONS TAKEN BY THE USER BASED UPON r� •`'••.���t
THIS INFORMATION.` �•
SCALE: ill_ 850' FIGURE
DATE: 9751SOUTHERN PINE BLVD USGS Topographic Map NO.
10-23 07 �� CHARLOTTE, 28273
PH.704s23-43-4728
DRAWN BY.
�F II N FAx.7oes2s•3953 ALLVAC Property
PROJECT NO: ENVY) ONA1ENTAiSERVICNES WWW.SMEINC.COM Monroe, North Carolina
1354-07-061

DRAIN AREAS SD. FQ1ILSL
AREA I = 67,003
AREA II 272.500
AREA 111 175,558
.AREA !V = 210.592
.AREA V 15,556
AREA VI 292,204
ARFA V11 = 1,477,456
STORMWATER DRAINS TO
NPDES PERMITTED POND
x
T�Ih}S
lip,
x
632-SW-DL 6 -
c32-SW-UER--I3� Q ,
�8J2-SW-UER-11
I'SW OUTFALL 904 M.
[SW OUTFALL f1d(M \--- RAII.ROAi?
632-SW-RG-2
1
SW OuvlA y05 M
V `-- RICHARDSON CREEK
NPDES OUTFALL JOOI(A7
632-SW-RT-:6
fl
632- -UER-27
T18
901-W-RT-94
2-8W R
sw 1FALL pui(M�j
I 632-BW--RC-28
BW OUTFALL ii&-04) I
LEGEND
AREA
D1 = DUMPSTERS (TRASH)
DR = DUMPSTERS (RECY(LABLES)
.AREA It
l!'FA 'll
DS = DUMPSTERS (SCRAP METAL)
RG - RECYCLABLE DUS7S, GRINDINGS, SWAPF,
SA',IPLE ENDS, POLISH INGS
?KFA i.,
,;•Fn w
RS = REW"i ABIE SKULLS
R1 a RECYCLABLE TLIRNINOS
- MATERIALS /GRUMP,
.ARE..
UMAPER USF0 F`OUS
STOR
UER - US>�� FQL9PMEN-i k HCY.L S7GR:\CE
SW OUTFALL i = ST(:RM WA.FR OUIFALL
NPDES 0!?'ali = "TORM WrTFP (d.!1(At.l. I,!t';,Tlr
!! rCf. A': ;.^;,, :I IAotill' RTTNC
IN FRET )