NC0045993_Renewal Application_20180731

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ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
secretmy
LINDA CULPEPPER
Interim Director
August 21, 2018
Joe Hinkle, EHS Manager
Allegheny Technologies Inc
PO Box 5030
Monroe, NC 28111-5030
Subject: Permit Renewal
Application No. NC0045993
All 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. 150B-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,
Wren The ford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
D_EQ
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-807-6300

. s,
4,4,..AT I
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 NC0045993 RENEWAL APPLICATION
To Whom it may Concern:
Attached you will find the documentation you requested for our NPDES NC0045993 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.
Kin egards,
Uk" 'C ' Viel—
gJoe inkle,
EHS Manager
ATI Specialty Materials - Monroe Site

Please print or type in the unshaded areas only
(fill-in areas are spaced for elite type,i.e., 12 characters/inch). For Approved. OMB No. 2040-0086. Approval expires 5-31-92
• FORM U.S.ENVIRONMENTAL PROTECTION AGENCY I. EPA I.D. NUMBER
1 irti`O GENERAL INFORMATION F 110000348589
7T/A
Consolidated Permits Program
GENERAL (Read the "General Instructions"before starting.) 1 2 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; ifp any of it is
incorrect cross through it and enter the
III. FACILITY NAME 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
V. FACILITY PLEASE PLACE LABEL IN THIS SPACE space lists the information that shouldappear), 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
VI. FACILITY completed regardless). Complete all items
if no label has been proved. Refer to the
instructions for detailed item descriptions
LOCATION and for the legal authorization under which
this data is collected.
II. 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.
SPECIFIC QUESTIONS MARK"X
XFORM SPECIFIC QUESTIONS MARK°XFORM
YES NO ATTACHED YES NO ATTACHED
A. Is this facility a publicly owned treatment works B. Does or will this facility (either existing or
which results in a discharge to waters of the ❑ ® ❑ proposed) include a concentrated animal ❑ ® ❑
U.S.?(FORM 2A) feeding operation or aquatic animal
production facility which results in a discharge
16 17 18 to waters of the U.S.?(FORM 2B) 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 8 above)which will result in a discharge
those described in A or B above?(FORM 2C) 22 23 24 to waters of the U.S.?(FORM 2D) 25 26 27
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?
28 29 30 (FORM 4) 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 special processes such as mining of sulfer by the
the surface in connection with conventional oil or ❑ ® ❑ Frasch process,solution mining of minerals,in ❑ ® ❑
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?
(FORM 4) 34 35 36 37 38 39
I. Is this facility a proposed stationary source J. Is this facility a proposed stationary source
which is one of the 28 industrial categories listedwhich is NOT one of the 28 industrial categories
in the instructions and which will potentially emit ❑ I El which
in the instructions 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
located in an attainment area? FORM 5 40 41 42 or be located in an attainment are? FORM 5 43 44 45
III. NAME OF FACILITY
c SKIP ATI Specialty Materials-Monroe Facility
1
15 16-29 30 69
IV. FACILITY CONTACT
A.NAME&TITLE (last, first,&title) B.PHONE(area code&no.)
2 Joe Hinkle 704 289 4511
15 16 45 46 48 49 51 52 55
V. FACILITY MAILING ADDRESS IIMIIIIIIIIIMIMMMIIIIIIIIIIIIIIIIMIMMIIIIIIII
A.STREET OR P.O.BOX
c P.O. Box 5030
15 16 45
B.CITY OR TOWN C.STATE D.ZIP CODE
c Monroe NC 28111
4
15 16 40 41 42 47 51
VI. FACILITY LOCATION
A.STREET, ROUTE NO.OR OTHER SPECIFIC IDENTIFIER
c 2020 Ashcraft Avenue
15 16 45
B.COUNTY NAME
Union
46 70
C.CITY OR TOWN D.STATE E.ZIP CODE F.COUNTY CODE
c Monroe NC 28111 I
15 16 40 41 42 47 51 52 54
EPA FORM 3510-1(8-90) CONTINUED ON REVERSE

CONTINUED FROM THE FRONT
VII. SIC CODES 4-di.it, in order of .riori
• A.FIRST B.SECOND
c 3463 (specify) 7 3351 (specify)
15 16 17 15 16 19
C.THIRD D.FOURTH
C (specify) 7 (specify)
7 7
15 16 17 15 16 19
VIII. OPERATOR INFORIIIIIMIIIIIIIIIIIIIMIIMIIIMI
A. NAME B. Is the name listed in Item
TDY Industries, LLC VIII-A also the owner?
8 ❑ YES ❑ NO
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) A 7041 289 4511
S=STATE 0=OTHER(specify) I`
P=PRIVATE 56 15 16 18 19 21 22 25
E.STREET OR PO BOX
P.O. Box 5030
26 55
F.CITY OR TOWN G.STATE H.ZIP CODE IX. INDIAN LAND
C Monroe NC 28111 Is the facility located on Indian lands?
B ❑YES ❑ NO
15 16 40 42 42 47 51
X. EXISTING ENVIRONMENTAL PERMITS
A.NPDES(Discharges to Surface Water) D.PSD(Air Emissions from Proposed Sources)
C T I NC0045993 C T 8 04330R31
9 N 9 P
15 16 17 18 30 15 16 17 18 30
B. UIC(Underground Injection of Fluids E.OTHER(specify) (Specify)
C T I ° T 8 NCS000330 Stormwater Permit
9 U 9
15 16 17 18 30 15 16 17 18 30
C.RCRA(Hazardous Wastes) E.OTHER(specify) (Specify)
C T IC r 8
9 R 9
15 16 17 18 30 15 Mal 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 ma. area. See instructions for .recise re•uirements.
XII. NATURE OF BUSINESS •rovide a brief descri.tion
Process materials to form super alloys for aerospace, biomedical, and oil/gas markets.
XIII. CERTIFICATION (see instructions)
I certify under penalty of law that l 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 possibility of fine and imprisonment.
A. NAME&OFFICIAL TITLE (type or print) B.SI A URE C. DATE SIGNED
Joe Hinkle/EHS Manager 7-,2-f- got?'
COMMENTS FOR OFFICIAL USE ONLY
C
C
15 16 55
3
EPA FORM_5 10-1(8-90
)

EPA I.D.NUMBER(copy from hem I ofForm I) Form Approved.
OMB No.2040-0086.
Please print or type in the unshaded areas only. Approval expires 3-31-98.
FORM U.S.ENVIRONMENTAL PROTECTION AGENCY
2 C \`/EPA FOR PERMIT TO DISCHARGE WASTEWATER
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
(list) 1.DEG. 2.MIN. 3.SEC. 1.DEG. 2.MIN. 3.SEC. D.RECEIVING WATER(name)
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 b.AVERAGE FLOW b.LIST CODES FROM
NO.(list) a.OPERATION(list) (include units) a.DESCRIPTION TABLE 2C-1
See attachment 1 -
See attached -
Catagorical Determinations
ATI Specialty Materials NPDES/
Pond Water Diagram
OFFICIAL USE ONLY(effluent guidelines sub-categories)
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 the,following table) m NO(go to Section III)
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.OUTFALL CONTRIBUTING FLOW (specify PER YEAR 1.LONG TERM 2.MAXIMUM 1.LONG TERM 2.MAXIMUM C.DURATION
NUMBER(list) (list) average) (specify average) AVERAGE DAILY AVERAGE DAILY (in dm s)
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 III-B) ❑NO(go to Section IV)
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 IV)
C.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
c.OPERATION,PRODUCT,MATERIAL,ETC.
a.QUANTITY PER DAY b.UNITS OF MEASURE (listnnOallnumhens)
(.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) 'ZI 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(copv.from Item I of Form I)
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 such pollutants below) ❑NO(go to Item VI-H)
Chromium
Nickel
Copper
EPA Form 3510-2C(8-90) PAGE 3 of 4 CONTINUE ON REVERSE

CONTINUED 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 their purposes below) ❑NO(go to Section VIII)
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. LI 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 V1 - V9
Suite 100
Huntersville, NC 28078
IX.CERTIFICATION
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.
A.NAME&OFFICIAL TITLE(type or print) B.PHONE NO.(area code&no.)
Joe Hinkle / Environmental Health & Safety Manager (704) 289-4511
C.SIGNATU D.DATE SIGNED
wdal' `7'a- ���'
` -
EPA Form 351 2C(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/ofForm I)
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 (sped f fblank) (optional)
b.MAXIMUM 30 DAY VALUE c.LONG TERM AVRG.VALUE a.LONG TERM
a.MAXIMUM DAILY VALUE (if available) (if available) AVERAGE VALUE
(1) (1) d.NO.OF a.CONCEN- (1) ' b.NO.OF
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(BOD)
b.Chemical Oxygen 33.0 1 mg/L
Demand(('OD)
c.Total Organic Carbon
(/t/(.) 3.9 1 mg/L
d.Total Suspended
Solids(/SS) <5.0 1 mg/L
e.Ammonia(as Al) <0.10 1 mg/L
VALUE VALUE VALUE VALUE
f.Flow 0.039274 0.026306 MGD
g.Temperature VALUE VALUE VALUE VALUE
(winter) 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 1 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.LONG TERM AVRG.VALUE a.LONG TERM AVERAGE
AND a. b. a.MAXIMUM DAILY VALUE (if available) (rfavailable) VALUE
CAS NO. BELIEVED BELIEVED (1) 1 (1) (1) d.NO.OF a.CONCEN- (1) b.NO.OF
(if available) PRESENT ABSENT CONCENTRATION (2)MASS CONCENTRATION (2)MASS CONCENTRATION (2)MASS ANALYSES TRATION b.MASS CONCENTRATION (2)MASS ANALYSES
a.Bromide X 2.4 1 mg/L
(24959-67-9)
b.Chlorine,Total
Residual X <0.024 1 mg/L
c Color X <25.0 1 Units
d.Fecal Coliform u 7.0 1 CFU1 0 OmL
e.Fluoride , `
(16984-48-8) 0.76 1 mg/L
f.Nitrate-Nitrite X
(as t 0.32 1 mg/L
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.LONG TERM AVRG.VALUE a.LONG TERM
AND a b a.MAXIMUM DAILY VALUE (l1 available) (if available) AVERAGE VALUE
CAS NO. BELIEVED BELIEVED (1) (1) (1) d.NO.OF a.CONCEN- (1) b.NO.OF
(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
AD
h.Oil and
Grease <5.0 1 mg/L
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
Totaladium, X 0.00+-0.28 1 pCi/L
(4)Radium226, X 0.33+-0.36 1 pCi/L
Total
k.Sulfate
(as SO,) X 8.6 1 mg/L
(14808-79-8)
I.Sulfide
(as,S) X <0.10 1 mg/L
Sulfite
(a X
(as SQ) <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)
pBarium,Total X 8-0 1 ug/L
(7440-39-3)
q.Boron,Total
(7440-42-8) X 3 06 1 ug/L
(
r.Cobalt,Total
(7440-48-4) X <5.0 1 ug/L
s.Iron,Total
(7439-89-6) X 1040 1 ug/L
t.Magnesium,
Total X 7150 1 ug/L
(7439-95-4)
u.Molybdenum,
Total X 280 1 ug/L
(7439-98-7)
v.Manganese,
Total X 370 1 ug/L
(7439-96-5)
w.Tin,Total
(7440-31-5) X <5.0 1 ug/L
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

EPA I.D.NUMBER(caw/'ram Item l ofl'inn I) OUTFALL NUMBER
CONTINUED FROM PAGE 3 OF FORM 2-C
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 (i/available) VALUE(if available) AVERAGE VALUE
CAS NUMBER TESTING BELIEVED BELIEVED d.NO.OF a.CONCEN- b.NO.OF
Of available) REQUIRED PRESENT ABSENT (1) (1) (1) ANALYSES TRATION b.MASS (1) ANALYSES
�/ CONCENTRATION (2)MASS CONCENTRATION (2)MASS CONCENTRATION (2)MASS CONCENTRATION (2)MASS
METALS,CYANIDE,AND TOTAL PHENOLS
\ /
1M.Antimony,Total X X <5.0 1 ug/L
(7440-36-0)
2MA-38 Total X/ 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 X <1.0 1 ug/L
(7440-43-9)
Tot Chromium, �/ X <5.0 1 ug/L
Total(7440-47-3) �\
l
6M.Copper.Total
(7440-50-8) X X 15.4 1 ug/L
` /
7M.Lead,Total <5.0 1 ug/L
X X
(7439-92-1)
8M.Mercury,Total X X <0.20 1 ug/L
(7439-97-6)
9M.Nickel,Total X u 21.8 1 ug/L
(7440-02-0)
10M.Selenium, X u <10.0 1 ug/L
Total(7782-49-2) �\ , `
(7440-22-4)Silver,Total v
^ \ / <5.0 1 ug/L
12M.Thallium, X X <10.0 1 ug/L
Total(7440-28-0)
(744 Zinc,Total X
(7440-66-6) X 26.5 1 ug/L
14M.Cyanide, X
Total(57-12-5) <0.008 1 ug/L
15M.Phenols, X
Total .011 1 ug/L
DIOXIN
2,3,7,8-Tetra- X DESCRIBE RESULTS
chlorodibenzo-P-
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
ANDa. b. c. a.MAXIMUM DAILY VALUE (if available) VALUE(if available) AVERAGE VALUE
CAS NUMBER TESTING BELIEVED'BELIEVED (1) (1) (1) d.NO.OF a.CONCEN-1 (1) b.NO.OF
(if available) 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
(107-02-8) X X <5.0 1 ug/L
2V.Acrylonitrile
(107-13-1) X X <50.0 1 ug/L
Benzene
X X
(71-43-2)2) �\ <2.0 1 ug/L
4V.Bis
met
methyl)Ether
X <5.0 1 ug/L
(542-88-1)
5V.Bromoform
(75-25-2) X X <2.0 1 ug/L
6V.Carbon X X
Tetrachloride <2.0 1 ug/L
(56-23-5)
7V.Chlorobenzene
(108-90-7) X X <2.0 1 ug/L
8V.Chlaro \ / \
bromomethane /X\ /X\ <2.0 1 ug/L
(124-48-1)
9V.Chloroethane
(75-00-3) X X <2.0 1 ug/L
10VX X
2-Chloro-
ethylvinyl Ether <5 0 1 ug/L
(110-75-8)
11V.Chloroform
(67-66-3) X X <2.0 1 ug/L
12V.Dichloro-
bromomethane X X <2 0 1 ug/L
(75-27-4)
13V. X X
Dichloro-
difluoromethane <2.0 1 ug/L
(75-71-8)
14V.1,1-Dichloro-
ethane(75-34-3) X X <2.0 1 ug/L
15V.1,2-Dichloro-
ethane(107-06-2) X X <2.0 1 ug/L
16V.1,1-Dichloro-
ethylene(75-35-4) X X <2.0 1 ug/L
17V.1,2-Dichloro-
propane(78-87-5) X X <2.0 1 ug/L
1propylene
8 pylene 1,3 - \ / `
propylene /X\ X <5.0 1 ug/L
(542-75-6)
19V.Ethylbenzene
(100-41-4) X X <2.0 1 ug/L
20V.Methyl
Bromide(74-83-9) X X <2.0 1 ug/L
21V.Methyl
Chloride(74-87-3) X X
<2.0 1 ug/L
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(opional)
1.POLLUTANT b.MAXIMUM 30 DAY VALUE c.LONG TERM AVRG. a.LONG TERM
ANDa. b. c. a.MAXIMUM DAILY VALUE (if available) VALUE(if available) AVERAGE VALUE
CAS NUMBER TESTING BELIEVED BELIEVED CO (1) (1) d.NO.OF a.CONCEN- (1) ' b.NO.OF
(if available) 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(continued)
22V.Methylene
Chloride(75-09-2) X X <2.0 1 ug/L
23V.1,1,2,2-
Tetrachloroethane X X <2.0 1 ug/L
(79-34-5)
24V.Tetrachloro-
ethylene(127-18-4) X X <2.0 1 ug/L
25V.Toluene X X <2.0 1 ug/L
(108
(108-88-3)
26V.1,2-Trans-
Dichloroethylene X X <2.0 1 ug/L
(156-60-5)
27V.1,1,1-Trichloro-
X X <2.0 1 ug/L
ethane(71-55-6)
28V.1,1,2-Trichloro-
ethane(79-00-5) X <2.0 1 ug/L
29V Trichloro-
ethylene(79-01-6) X X <2.0 1 ug/L
30V.Trichloro-
fluoromethane X x <2.0 1 ug/L
(75-69-4)
31V.Vinyl Chloride
(75-01-4) X <2.0 1 ug/L
GC/MS FRACTION-ACID COMPOUNDS
1A.2-Chlorophenol
(95-57-8) <4.9 1 ug/L
2A.2,4-Dichloro-
X X <4.9 1 ug/L
phenol(120-83-2)
3A.2,4-Dimethyl-
X I X <9.8 1 ug/L
phenol(105-67-9)
4A.4,6-Dinitro-O-
<20.0 1 ug/L
Cresol(534-52-1)
X X
5A.2,4-Dinitro-
phenol(51-28-5) X X <49.0 1 ug/L
6A.2-Nitrophenol XX
(88-75-5) <4.9 1 ug/L
7A.4-Nitrophenol
(100-02-7) X X <49.0 1 ug/L
•
8ACr of(59-50-7) X X <5.0 1 ug/L
Cresal(59-50-7)
9A. / X <9 8 1 ug/L
phenol(87-86-5)
10A.Phenol
(108-95-2) X X <4.9 1 ug/L
11A.2,4,6-Trichloro-
phenol(88-05-2) X X <4.9 1 ug/L
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 (if available) VALUE(if available) AVERAGE VALUE
CAS NUMBER TESTING BELIEVED BELIEVEDd.NO.OF a.CONCEN- b.NO.OF
(if available REQUIRED PRESENT ABSENT (1) (1) (1) ANALYSES TRATION b.MASS (1) ANALYSES
CONCENTRATION (2)MASS CONCENTRATION (2)MASS CONCENTRATION (2)MASS CONCENTRATION (2)MASS
GC/MS FRACTION—BASE/NEUTRAL COMPOUNDS
1B.Acenaphthene X X <4 9 1 ug/L
(83-32-9)
2B.Acenaphtylene X/ X
(208-96-8)3B. /� \/�, <4.9 1 ug/L
Anthracene X X <4 9 1 ug/L
(120-12-7)
8ne
(92-87-5) X X <49 0 1 ug/L
5B.Benzo(a)
Anthracene X X <4 9 1 ug/L
(56-55-3)
6B.Benzo(a) X X <4 9 1 ug/L
Pyrene(50-32-8)
78.3,4-Benzo- X X
fluoranthene <4.9 1 ug/L
(205-99-2)
86.Benzo(9hi) X X <4.9 1 ug/L
Perylene(191-24-2) /�
98.Benzo(k)
Fluoranthene X X <4 9 1 ug/L
(207-08-9)
10B.Bis(24'hloro-
erhozy)Methane X/ X <9.8 1 ug/L
(111-91-1) /�
11B.Bis(2-('Nom-
ethyl)Ether X X <4.9 1 ug/L
(111-44-4)
12B.Bis(22-
('hloroisopropyl) X X <4.9 1 ug/L
Ether(102-80-1)
13Bhexv Bis t Phthalate
X
he.rvQ Phthalate <4 9 1 ug/L
(117-81-7)
146.4-Bromophenyl
Phenyl Ether X X <4 9 1 ug/L
(101-55-3)
15B.Butyl Benzyl X X <4 9 1 ug/L
Phthalate(85-68-7)
168.2-Chloro-
naphthalene X X <4 9 1 ug/L
(91-58-7)
17B.4-Chloro- \/
phenyl Phenyl Ether X 7� <4.9 1 ug/L
(7005-72-3)
18B.Chrysene
(218-01-9) /�X/ X <4.9 1 ug/L
19B.Dibenzo(a.h)
Anthracene X X <4 9 1 ug/L
(53-70-3)
20B. -(9-50-1- X/ X <4.9 1 ug/L
1,2-Dichloro-
benzene
e(95-50-1) /�
218.1,3-Di-chloro-
X X
benzene(541-73-1) /� /� <4•9 1 ug/L
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 (if available) VALUE(ifavailable) AVERAGE VALUE
CAS NUMBER TESTING BELIEVED BELIEVED (1) (1) (1) d.NO.OF a.CONCEN- (1) ' b.NO.OF
(if available) 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(continued)
22B.1,4-Dichloro-
XX
benzene(106-46-7) <4.9 1 ug/L
23B.3,3-Dichloro-
benzidine(91-94-1) <24.5 1 ug/L
24B.Diethyl
Phthalate(84-66-2) X X <4.9 1 ug/L
258.Dimethyl
Phthalate X X <9.8 1 ug/L
(131-11-3)
268.Di-N-Butyl
Phthalate(84-74-2) X X <4.9 1 ug/L
278.2,4-Dinitro-
toluene(121-14-2) X X <4.9 1 ug/L
28B.2,6-Dinitro-
toluene(606-20-2) X X <4.9 1 ug/L
298.Di-N-Octyl
Phthalate(117-84-0) X X <4.9 1 ug/L
3013.1,2-Diphenyl-
hydrazine(as Azo-
X X <4.9 1 ug/L
benzene)(122-66-7)
31B.FIuoranthene
(206-44-0) X X <4.9 1 ug/L
32B.Fluorene
(86-73-7) X X <4.9 1 ug/L
ben.Hexachloo- X X <4.9 1 ug/L
benzene(118-774-1)
348.Hexachloro-
butadiene(87-68-3) X X <4.9 1 ug/L
358.Hexachloro-
cyclopentadiene
X X <g 8 1 ug/L
(77-47-4)
36B Hexachloro-
ethane(67-72-1) X X <4.9 1 ug/L
37B.Indeno
(1,2,3-cd)Pyrene
/\y X <4.9 1 ug/L
(193-39-5)38B
(78-59-1)porone X X <4.9 1 ug/L
398.Naphthalene
(91-20-3) X X <4.9 1 ug/L
408.Nitrobenzene
(98-95-3) X X <4.9 1 ug/L
418X X
N-Nitro-
sodimethylamine <4.9 1 ug/L
(62-75-9)
42B.N-Nitrosodi-
ylamine
(621-6X 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 Categ srical Determination
Cat orical Standards for Constituents
Salveu Cr Ni F Co Pb Zn NH,
Metals) Categsrkal 40 CFR Regulated Daily Max.Max.Mo.Avg Daily Max. Max.Mo.Avg Daily Max.Max.Mo.Avg Daily Max. Max.Mo.Avg Daily Max.Max.Mo.Avg Daily Max,Max.Mo.Avg Daily Max.Max.Mo.Avg
Wastewater Source Production Staadudi ' elation Couslitueat (lb/MM Ib) (lb/MM Ib) (Ib/MM Ib) (Ib/MM Ib) (lb/MM lb) (lb/MM Ib) (lb/MM Ib) (lb/MM lb) (lb/MM Ib) (lb/MM Ib) (lb/MM Ib) (Ib/MM Ib) (lb/MM lb) (lb/MM Ib)
Cooling Towers&Non-Contact r N/A No p +.
Cooling Water
Forging Equipment Cleaning Ni-Co Yes 471.32(j) Cr,Ni,F 0.002 0.0006 0.002 0.002 0.238 0.106
Wastewater Ti Yes 471.62(i) Cn,Pb,Zn,NH,-N,F 2.38 1.06 "® 0.005 "® 0-00811=1.11133.15.33 2.35
Contact Cooling Water Ni-Co Yes 471.32(k) Cr,Ni,F Ma. 0.007 0.026 0.018 2.82 1.25 - - -
Ti Yes 471.62(h)_Cn,Pb,Zn.NH,-N,F 5.95 2.64 �� i i �� i i
ForgingPressHydraulic Fluid Ni-Co Yes 471.32 ) Cr,Ni,F 0.069 i i i i NIIMEM 5.86
(1 �® 0.069 11.2 4.94
Leakage Ti Yes 471.62(j) Cx,Pb,Zn,NH,-N,F! _ 60.1 26.7 '® "®" MEMIKEINI 0.616 8b 59.2
Ni-Co Yes 471.32(9) Cr,Ni,F 0.091 "®MEIM 0.091 14.7 6.5
Miscellaneous Wastewater Sources Ti Yes 471.62(x) Cn,Pb,Zn,NH,-N,F 1.93 0.856 NM 0.004 arall 0007 "®" 'X. w 1.9
Rolling Contact Cooling Wafer Ni-Co Yes 471.32(b) Cr,Ni,F i r i'® "®' 0.028 4.49 1.99
Ti Yes 471.62(b) Ca,Pb,Zn,NHi-N,F 29.1 12.9 '® i� i r i i MERIIMIM 28.6
Stormwater N/A No
�I
Prepared by ... i
Checkedty r/,j I ► .L
M012018

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 2: Production Related to Cate•orical Standards
Production Exposure
Production (lb/ r Pass-Throu•hs (lb/ r)
De t O i eration # Ni-Cr Alloys Ti Alloys Ni-Cr Allo s Ti Alloys Ni-Cr Allo s Ti Allo s
Press Quench 56,688,186 1 56,688,186
GFM Quench 137,190 226,826 1 2 137,190 453,652
GFM 13,719,052 22,682,678 7 10 96,033,364 226,826,780
Totals: _ 96,170,554 283,968,618
Shape Mill 1170-039 941,209 42,366 18 18 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
Notes for Table 2:
1) Production(Ib/yr)and pass-through values were provided by plant personnel.
2) Production Exposure(Ib/yr)= Production(Ib/yr)x Pass-Through
Prepared by I,, a
•
Checked byrJ /I LL( ,t/(y'
7/30/2018

ATI Specialty Materials-Monroe 1
NPDES Permit Renewal
•
Table 3: Calculation of Allowable Mass Limits Based on Categorical Standards
Prd.ctiov Prdnni Specify Total 40 CPR 471.XYAllewvre(ItMM Ib) Man Alowear.
Tow Flew Nkbei Tarsals Floe 41/dy) l-day M. MonlMy A,Moa (IN4y)�, tlWdy
m
wow..- ..a Marl 06/da (RJyr) OMd y Nk6el Tileniw. Cr NI F Cl. Pb PA Nil, Cr NI F Ca Pb Z. NRn Cr NI P Co Pb 04 Nil, Cr NI F Cr Pb 20 an,
Cooling Towels&Non-Contact Cooling 50,303
Water
Forging Equipment Cleaning Wastewater 1,627 96,170554 m 0.002 0.002 0.238 0.0006 0.002 0.106 0.00077 0.00077 0.09155 0.00023 000077 0.04078
ECIMEMDEIMI t®.. 2.38��0.059® 1.06 0.005 0.008=® 2.70338 0.01363 0.01931 0.06702'I 1.20403 0.00568 0.00909 0.02840 2.66931
Contact Cooling Water 5,000 96,170,554 Erma MESE Eno0.026 2.82 0.007 0.018 1.25 0.00692 0.01000 1.08480 0.00269 0.00692 0.48085
283,968,618 mom ® 595 0.029 Ecsame 2.64 riM 0.02 LEZIEE3 6.75845 003294 inal[11313[1:31B 2.99871 0.01363 0.02272 "® 6.65622
Forging Pratt Hydraulic Fluid leakage 0 96,170,554 0 0.069 0.103 11.2 I I . 0.069 4.94 N/A N/A N/A N/A
0 60,1 CEMICKEILIZI® 26.7 '®'®"®'EU N/A N/A ammmm ® nno NTA
Miscalleneous Wastewater Sources 0 126,058,726 0 0.091 0.136 14.7 II 0.091 6.5 ' N/A N/A
IIIIREMEMEELCI 0 1.93 '®"'®"®l® 0.856 0.004 0007 '®' gj N/A N/A ®=11® �� N/A
Rolling Contact Cooling Water 2,854 .29.888,172 om 0.042 4.49 "®0.028 1.99 0.00335 0.00502 0.53679 0,00132 ,
12.904,092 MILE 110111111 Eacutunm'®eli IECIIIE3 0.098 t®'. 1.50204 0.00733 0.01058 0.03680'I 066515 0.00305 0.00506 1.47623
Mar.Alined,.Avg 142,036
Stormwater Man.o/0dy Mn, 1,887,825
Bend on Annual Tow 84 503
Total Flow BasedMax.of Daily Avg 201,•20 Totals 0.011 0.016 12.677 0.054 0.078 1.270 24.522 0.004 0.011 5.628 0.022 0.037 0.066 10.802
Mas.of Deily Max 1,947,409 1 Based an Max.of Daily Arg 0.615 0.880 275.395 1.919 2.763 9.603 873.248 0.236 0.615 122X65 0.796 1.313 2.368 384.666
on: Annual Total 144,087 Alternative Mus
Baud on Max.°[Urdu Max 5.941 8.497 2659988 18.540 26.691 92.752 8434.519 2.281 5941 1180.936 7689 12679 22.872 3715.408
Limit Terabit
Total Flow Regulated for Cr&Ni. 3,619 Based ea Aoaaal Total 0.440 0.629 196.810 1.372 1.975 6.863 624.061 0.169 0.440 87.376 0.569 0.93E 692 276899
Total Flow Regulated for F': 9,281
Total Flow Reg for Cn,Pb,Zn,&NH,: 5,662P''''
,6627/ r
N.p.W M I"'
Now for Table 3: Qwctrd by
I)Individual Total Flows(gal/day)for each process were from facility reaxds,exlept Storrnwatel,which are from Table 5b.Production Exposure(Ib/yr)values are from Table 2.
2)Production Exposure(lb/day)„,,,=Production Exposure(Ib/yr)/(50 wk/yr x 5 day/wk)
3)Production-Specific Total Flow,(gal/day)=Total Flow(gal/day)x[Production Expasurei(lb/day)/I Production Exposure(lb/day)]
4)40 CFR 471.XX Allowance(Ib/MM lb)values arc frau 40 CFR 471.32 and 471.62,as applicable.
5)Mass Allowance
a)(1b/day)„„,-(1-day Max Allowance(IbAAM Ib)x Production Exposure(Ib/day)„,)/(1,000,000/MM)
b)(Ib/day)®a,e,a"(Monthly Max Allowance((b/MM Ib)u Production Exposure(Ib/day)„JJ/(1,000,000/MM)
6)Total Flows Regulated(gafday).
a)For Cr&Ni=the sum of Production-Specific Total Flows associated with Nickel production and cnnesponding 40 CFR 471.XX allowances.
b)For F=the sum of Production-Specific Total Flows associated with Nickel eaQ Titaniumprochiaion and corresponding 40 CFR 471.XX dlowaous.
c)For Cn,Pb,Zn,&Writ=the sum of Production-Specific Total Flows associated with Titanium production and vrnrapording 40 CFR 471.XX allowances.
7)Total Flow(gal day)"basad on'values am from Table 5b.
8)Mass Allowance Totals are the sums of mass dowances in each column.
9)Alternative Mass Lima Totals=Mass Allowance Totals(lb/day)x Total Flow(gal/day)/Total Flow Regulated(gal/day)[pollutant-dependent]
10)Limits based on annual tow sronnwater values yield the lowest(most conservative)alternative mass limit bice.These will he used in Table 4.
7/30/2018

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 4: Calculation of Allowable Concentrations
Based on Categorical Standards
Allowable Permit Limits using
Annual Total Stormwater Flow
Daily Max Monthly Average
Parameters (lb/day) (mg/L) (lb/day) (mg/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: I 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) (Ib/day)values are those calculated in Table 3.
b) (mg/L)_(Ib/day)/[Total Flow(gaUday)x 8.344 lb/gal/ 1,000,000 mg/L
Prepared by /
Checked by MA4.) \6k/tititAl
7/30/2018

ATI Specialty Materials - Monroe
NPDES Permit Renewal
Table 5a: Monroe,NC Rainfall Data for
CY 2017
CY 2017 Precipitation(in)
Month in CY Monthly
2017 Daily Max Daily Avg 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
Aug 1.25 01 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
intensity
(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
W eatherUnderground.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
�' -
1,477 456 150,667
Surface Area
=C ' 33.9 30.4 3.5
Runoff Coefficient 0.80
Max.of Daily 0.0079
Av•
Max.Rainfall Intensity(in/hr) Max of Daily 0.1050
Based on 0.0047
Annual Total
Max.of Daily 0.2198 0.1921 0.0277
Ay:
(ft'/sec) Max of Daily 2.9211 2.5536 0.3675
ax
Based on 0.1308 0.1 143 0.0165
Discharge Annual Total
Max.of Daily
Av_ 142,036 Mil
(gal/day) Max of Daily 1,887 825
Based on
Annual Total 84,503r
Notes for Table 5b:
1) Surface Area:
a) (f12)was estimated using Google Earth and CEC's knowledge of the drainage area.
b) (acre)=(ft')/43,560 ft2/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)=(ft/sec)x 3600 sec/hr x 24 hr/day x 7.48 gal/fl'
Prepared by AL(gar
Checked by � .1
7/30/2018

OAT ! Attachment - 2
Effluent Limitation Guidelines
Monroe Facility
NPDES Permit#NC0045993
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
(j) Daily Max 0.40 0.002 0.001 0.002 0.001 0.238 0.095
Forging equip.cleaning wastewater Mnthly Avg. 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 press hyd.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 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
(j) Daily Max 1.18 60.1 71.1 0.293 0.347 0.424 0.502 1.48 1.751 135 160
Forging press hyd.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.): 0.087 0.129 99 0.415 0.600 2.09 191
Monthly Avg.(lbs.): 11.035 0.087 43.9 0.171 0.286 0.82 84

Effluent Concentration Values
0ATIMonroe NC Facility NPDES Permit NC0045993
Chromium Lead Nickel Zinc Chromium Lead Nickel Zinc Chromium Lead Nickel Zinc
ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L
<5.0 <5.0 31.0 37.2 <5.0 <5.0 30.6 18.0 6.2 <5.0 32.4 27.9
Jun-15 Jun-16 Jun-17
6.2 <5.0 30.1 37.2 <5.0 <5.0 34.4 20.7 <5.0 <5.0 31.8 25.7
<5.0 <5.0 26.9 26.8 <5.0 <5.0 30.8 17.5 5.6 <5.0 32.1 28.7
Jul-15 Jul-16 Jul-17
8.4 <5.0 66.3 68.2 8.4 <5.0 42.7 25.0 <5.0 <5.0 24.7 20.7
7.1 <5.0 31.5 26.8 <5.0 <5.0 27.9 17.4 7.0 <5.0 26.6 18.3
Aug-15 Aug-16 Aug-17
<5.0 <5.0 25.0 20.7 <5.0 <5.0 27.4 18.4 <5.0 <5.0 21.0 17.0
<5.0 <5.0 21.9 20.7 <5.0 <5.0 24.0 17.6 7.6 <5.0 26.4 23.0
Sep-15 Sep-16 Sep-17
<5.0 <5.0 21.4 18.6 <5.0 <5.0 26.5 19.3 <5.0 <5.0 18.0 15.5
5.5 <5.0 22.9 22.7 <5.0 <5.0 21.0 17.3 6.4 <5.0 22.9 24.2
Oct-15 Oct-16 Oct-17
5.2 <5.0 27.6 27.4 <5.0 <5.0 23.7 18.4 <5.0 <5.0 17.4 14.0
12.9 <5.0 38.6 40.0 <5.0 <5.0 22.2 22.3 9.0 <5.0 29.6 41.4
Nov-15 Nov-16 Nov-17
5.6 <5.0 24.2 40.6 <5.0 <5.0 20.4 18.7 7.6 <5.0 25.2 32.6
5.6 <5.0 23.8 37.0 5.4 <5.0 26.4 27.4 <5.0 <5.0 21.1 29.5
Dec-15 Dec-16 Dec-17
10.6 <5.0 53.4 51.0 5.6 <5.0 23.4 27.2 6.3 <5.0 25.0 37.5
7.1 <5.0 33.4 53.48.3 <5.0 27.8 43.8 9.7 <5.0 35.5 48.8
Jan-16 Jan-17 Jan-18
10.2 <5.0 34.8 51.6 5.1 <5.0 26.4 35.2 28.4 <5.0 29.1 50.2
7.2 <5.0 33.6 51.4 <5.0 <5.0 26.4 29.5 16.8 <5.0 51.3 68.5
Feb-16 Feb-17 Feb-18
10.3 <5.0 38.0 49.2 <5.0 <5.0 24.9 32.1 7.7 <5.0 27.3 39.2
<5.0 <5.0 30.2 49.7 7.4 <5.0 31.2 34.4 5.9 <5.0 27.4 42.9
Mar-16 Mar-17 Mar-18
6.9 <5.0 31.4 40.4 <5.0 <5.0 28.2 35.8 6.1 <5.0 22.2 35.5
<5.0 <5.0 29.3 34.0 7.3 <5.0 26.6 29.5 5.6 <5.0 26.2 43.0
Apr-16 Apr-17 Apr-18
<5.0 <5.0 30.1 37.7 7.2 <5.0 29.4 33.0 5.2 <5.0 25.8 32.6
5.5 <5.0 39.3 31.2 7.2 <5.0 31.9 29.2 6.1 <5.0 28.4 35.5
May-16 May-17 May-18
24.6 <5.0 89.4 66.8 5.6 <5.0 28.4 27.4 10.5 <5.0 38.5 43.8

4:111licr
:t ATI Specialty Materials — Monroe NPDES / Pond Water Diagram
1 Monthly Avg. Discharge:
Oil/Water Max= 0.507 MGD
Pond ► +' Richardson Creek
Separator Min =0.056 MGD
J j 3-Year Avg. = 0.183 MGD
— y
Pump
A
Stormwater House
City
Sand Water
Filter
Cooling Towers &
Rolling Mill Forging Equipment Non Contact Cooling Water
2,854 GPD 1,427 GPD
50,303 GPD
4 4 4 1

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i. \ _. i. '7/(c,
REFERENCE: C-.+ 1� I, NI
THE ABOVE GEOGRAPHIC INFORMATION SYSTEMS(GIS)COVERAGE WAS OBTAINED FROM THE NORTH CAROLINA ` t �;
DEPARMENT OF TRANSPORTATION WEBSITE(NCDOT) PLEASE NOTE THIS MAP IS FOR INFORMATIONAL PURPOSES S
ONLY.I RIS NOT MEANT FOR DESIGN,LEGAL,OR ANY OTHER USES.THERE ARE NO GUARANTEES ABOUT ITS ACCURACY.
•&WE.INC.ASSUMES NO RESPONSIBILITY FORANY DECISION MACE CR ANY ACTIONS TAKEN BY TIE USER BASED UPON r.'`••.•.\A1'
'THIS INFORMATION ! ,•... : ~'`•
SCALE: t_
1 -850 USGS Topographic Map FIGURENO
DATE: LVD 9751 SOUTHERN PINE B
10-23 07 CHARLOTTE,N.C.28273
' PH.704-523-4726
DRAWN BY. CJF x FAX.[phone] ALLVAC Property
PROJECT NO: ENVGIININNAIENTAMit
LES WWW.SMEINC.COM Monroe, North Carolina
1354-07-061 J

RAIN AREAS SO, FOOTAGE
AREA I = 67.003 0
\
AREA II = 272,500
AREA III 175,358 CO U
.AREA IV= 210,592 < g '
AREA V= 75,556
AREA VI = 292,204 p
ARFA VII = (I
STORMWATER DRAINS TO �.\ N i rSW OUTFALL �105(M�I Z CD
NPDES PERMITTED POND T co 4'
I' t M
.,-':.; V
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.r. _ INPDES OUTFALL /001041
-..,__,.... 632-SW-RT-25
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l „ -TleigOISW-RT-74
• aCa
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ALL f01(M)
IIJ,,„ -632-BW-RG-28 1110 .
7.84 le . S SW OUTFALL
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lN3A? VI � ,,,,i,. ® ii"N % "a r. T
�• 632-SW-RG-14 � „��. � - _
632-SE. 01 832-SWR £ i!k'. n �— x(11
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cat W-l:Ek..13'. p�Y'}532 + �r v` 1--- - - -T T LW AL—i0304
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fSW OUTFALL/0IA SW OUTFALL /O6 Mj -RAILROAD i_ Di
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LEGEND ¢ 0
N z
j AREA I ARIA A otl
Dl = DUMPSTERS (TRASH)
DR = DUMPSTERS(RECYCLABLES) - .AREA II 1 • AREA 'A
DS = DUMPSTERS(SCRAP METAL)
RD =, RECYCLABLE DUSTS, GRINDINi,S, DWARF, I
SAMPLE ENDS, P(ILISHINGS AREA IA ''I r 71!
RS = REC.YCI ABI E SKULLS '' -
R1 - RECYCLABLE TIIRNINDS o iii; 2.% x:., e:GLFE e:a.
HMD = HAZARDOUS MATERIAL STiGRUM, ARE" N
UER - USED EQUIPMENT k kC4L STORAiE . 1111J
SW OUTFALL /= STCELM WA"IFIL DUIFALL
C NPITFS OUT'ML I- `TORM W,,1FP (&11FAU.I I,Ci:1A,t1 FCA t,!.%.'.1.,.1 M!AIIF.RTING , IN REST' )