NCS000171_Renewal application_20150702

Permit Coverage
Q Renewal Application Form
NCDENR National Pollutant Discharge Elimination System
Stormwater Individual Permit
61LM.-;'
NPDES Permit Number
NCS 0001.71
Please provide your permit number in box in the upper right hand corner, complete the information in the space provided
below and return the completed renewal form along with the required supplemental information to the address indicated,
Owner Information
* Address to which permit correspondence will be mailed
Owner / Organization Name:
Kennametal, Inc.
Owner Contact:
Robert T. McGhee
Mailing Address:
139 Warehouse Road, Henderson, NC 27537
Phone Number:
252-430-3303
Fax Number:
252-430-3315
E-mail address:
[e-mail]
Facility Information
Facility Name:
Kennametal, Inc. Henderson Plant
Facility Physical Address:
139 Warehouse Road Henderson NC 27537
Facility Contact:
Robert T. McGhee
Mailing Address:
139 Warehouse Road
Henderson, NC 27537
Phone Number:
252-430-3303
Fax Number:
252-430-3315
E-mail address:
[e-mail]
Permit Information
Permit Contact:
Mailing Address:
Phone Number:
252-430-3303
Fax Number:
252-430-3315
E-mail address:
[e-mail]
Discharge Information
Receiving Stream:
Joe's Branch & Martin Creek
Stream Class:
CNSW
Basin:
Tar Pamlico
Sub -Basin:
030301
Number of OutFails:
7
ECEI' E- N
JUL 0 2 2015
DENR-LAD QUALITY
STORMWATER PERMITTING
Facility/Activity Changes Please describe below any changes to your facility or activities since issuance of your permit. Attached a
separate sheet if necessary.
No changes to the facility or activities at the facility.
CERTIFICATION
I certify that I am fa r with the information co to
such infor alet an a a
j(
Signature
Lert T c_G­h�ep
P int or type name of pe son signing above
in the application and that to the best of my knowledge and belief
Date
SPninr FHS Analyst TSC.1
Title
SW Individual Permit Coverage Renewal
return this complet application form Stormwater Permitting Program
requested supplemen 1 information to: 1612 Mail Service Center
Raleigh, North Carolina 27699-1612

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
974 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
/\ 2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfalI number,
parameters sampled, lab results, date sampled, and storm event data.
% 3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
zC7/t 6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

Current Site Map
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES Permit Number = NCS 000171

Summary of Analytical Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES Permit Number = NCS 000171

1
inaivioual NPDES Permit No.
Certificate of Coverage (COC) No
STORMWATER DISCGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2011
NCS000171 or
NCG❑❑❑❑❑❑
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1s` of the following year.
Facility Name. Kennametai, Inc. Henderson Plant
County Vance
Pnone Number: (_252) 430-3303 Total no. of SDOs monitored 2
Outtall No. 002
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No X
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No X
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No X
Parameter, (units)
Total
TN
Cobalt
pH
Rainfall,
TSS
BOC
COD
inches
Benchmark
N/A
100
30
120
30
6-9
I
1.02
15 mWL
12 m L
!!'
3 n1 1�
Q� !
7-1
11l25/11
SWU-264-Gen5May2010

Additional Outfall Attachment
Outfall No. 004
Is this outfall currently in Tier 2 (monitored monthly)? Yes❑ No X
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes❑ No X
if this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes[] No X
Parameter, (units)
Total
Rainfall,
inches
TSS
BOD
COD
TN
Cobalt
pH
Benchmark
N/A
100
30
120
30
NA
6-9
1.02
18 L
5 �
3 m
1
a
SWU-264-Gen '.5(vlay2010

"i cer[�ty. under penalty of law. that this document and all attachments were prepared under my direction or supervision in accordance with a
system aesigned to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or parsons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
Lest of my knowledge and belief: true, accurate, and complete. I am aware that there are significant penalties for submitting false information.
inciva,ng the posszil�y of fines and imprisonment for knowing violations."
Signature
Date
Mail Annual DNIR Summary Reports to:
DVVQ Regiol2at Office Contact Information:
ASHEVILLE REGIONAL OFFICE
2090 US Hibh,raN 70
S�4Linnanua. NC 2x778
[phone]
RALEIGH REGIONAL OFFICE
1800 Barrett Dri % c
Ralei-lt. NC 276019
(919) 791 --42OU
WINSTON-SALEM REGIONAL OFFICE
585 Waughto%kn Street
Winston-Salem, NC 271U7
(33o) 771-5000
FAYETTEVILLE REGIONAL OFFICE
225 Green Street
S)stel Building Suite 714
Fayetteville- NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington. NC 27889
[phone]
CENTRAL OFFICE
1617 Mail Service Center
Raleigh, NC 27699-1617
(919) 8U7-63UU
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
'To preserve. prolecr
' and amance
JVOr7h ceidula's w1w81._ "
S WU-264-Gent�?5MaV2010

STORIVIWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year �2012
ln,7ividual NPDES Permit No. NCS000171
Certificate of Coverage (COC) No.
This monitoring report sunlnjary of the calendar year is due to the DVVQ Regional Otfice no later than March 'I" of the following year.
reciiity Name. �Kennametal, Inc.
County. _Vance
Phone Number: (252-430-3303) Total no. of SDOs monitored _Two
Outiail No. 002
is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No
Was this outtail ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
F
Other ❑
was cnis SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter,((units)
Benchmark
Total
Rainfall,
inches
TSS
BOD
30
COD
TN
Cobalt
(Total
Recoverable)
pH
100
120
30 -
_.
N/A
6-9
Date Sample
Collected,
mmlddlyy
_N/A
-
05/30/12
0.91
1.3
2.5
34
1.7
0.406
6.5
SWU-264-Genes ''Way2010

Ad jiuor'llal Outfall Attachment
Outtall No. 004
is tnis outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
if this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough. consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
was this SDO monitored because of vehicle maintenance activities?
_� • FI
-■ •►e
Yes❑ Na®
Parameter, (units)
Total
Rainfall,
inches
TSS
BOD
COD
TN
Cobalt
(Total
Recoverable
pH
Benchmark
N/A
0.91
100
30
3.6
120
40
30
1.9
N/A
6-9
..Date Sample
Coliected
mmlddiyy
1.6
05/30/12
0.526
6.7
I
SWU-264-Gener� �Way2010

"I vertity - unaer 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,
inctuging the possibility of fines and imprisopmen� for knowing violations."
Signature-
"" -
Data
Mail Annual DIVIR Summary Reports to:
DWQ ReLjional Office Contact Information:
:kSHEVILUk KEGIONAL OFFICE
2090 US Highway 70
S,.vannanua. NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh. NC 27609
[phone]
WINSTON-SALEM REGIONAL OFFICE
585 Waughtown Street
Winston-Salem. NC 27107
[phone]
i y Win twhlaloe
U�l''
w Sian
FAYETTEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone] _
WASHIlNGTON REGIONAL OFFICE
943 Washington Square Mall
Washington. NC 27889
[phone]
- CENTRAL OFFICE -
t 617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
MOORESVILLE REGIONAL OFFICE:
610 East Center Avenue/Suite ')01
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
'Ta preserve, prareu
} and enhance
L_ A" Gamkm's wafer... "
SWU-264-Genera �5May2010

-� STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DNIR)
Calendar Year _2013
wsa,viaual NPDES Permit No, NCS000171
Certificate of Coverage (COC) No.
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March 1"' of the following year.
r=acii,tj Name _Kt-nilamelai Inc.
Cuunty _Vance
Rnuric NurnDer i2b2-430-33031 Total no. of SDOs monitored _Two
Outlall No. UU2
is this ounali currently in Tier 2 (monitored monthly)?
Was tnts ourlail ever in Tier 2 (monitored monthly) during the past year?
it EMS outtall was in Tier 2 last year, why was monthly monitoring discontinued?
Enougn consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reauce monitoring frequency ❑
Other ❑
Vvaa tnis SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No ❑
Parameter, units
i
Towl
Rainfall,
inches
TSS
U00
coo
TN
Cobalt
(Total
Recoverable)
pli
Benchmark
M!A
� 100
30
—
120
30
_ -
N/A
- - - -- -
i
6-9
-
- ------------ -
- - ._...
Date Sample
Collected,
mmldaiyy
— -
� 017113
0.72
3.6
11'
72
3.3
0.830
6.4
SW11-264-Generk cAayKC Cj
V% .0 *L"X`

iu&nal Outf all Attachment
Outtall No. U04
Is this outtall currently in Tier 2 (monitored monthly)?
! Was this outtall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
was this SDO monitored because of vehicle maintenance activities?
• 1�
Yes❑ No®
Parameter,((units)
Total
Rainfall,
inches
TSS
BOD
COD
TN
Cobalt
(Total
Recoverable
pH
r3ericnrnarx
N/A
1 100
30
120
40 11.9
30
11UA
6-9
S4~,
Date Sample-
Collected,
mmldd/yy
-
1.6
3.6
0.526
1017113
0.72
6.7
r
SWII-2fi4-Gen�sicta�2U1G

i certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
aystem 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
nest 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 fines and imprisonment for knowing violations."
Signature -
Date
Mail Annual DMR Summary Reports to:
D1 WQ Regional Office Contact Information:
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL OFFICE
585 Waughtown Street
Winston-Salem, NC 27107
[phone]
FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
225 Green Street
610 East Center Avenue/Suite 301
Systel Building Suite 714
Mooresville, NC 28115
Fayetteville, NC 28301-5043
[phone]
[phone] _
WASUINGTON REGIONAL OFFICE
WH MlNGTON REGIONAL OFFICE
943 Washington Square Mall
127 Cardinal Drive Extension
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
CENTRAL OFFICE
1617 Mail Service Center
_
� �ru protect
Raleigh, NC 27699-1617
`
[phone]
I N04hCarafM5water.••" i
SWU-264-Generic,tay201 G

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2014
,..., i_.2, ivPL� E5 rrarn„t No Ncs000171
ti. �., l,�tt.�tC ui l.J4 CI'd�C ICVI.) NAY Nl.l]❑❑❑❑❑❑
i-r,is IIIurilturing rdpUrt surnrnary of the calendar year should be kept on file on -site with the facility SPPP.
� �...i,l J fvariic. f\cllildrllctal ins.
i-_ _ 52_1 - 1-)6-33u3 Totai no of SDOs monitored Two
%,.JutT4il No. _002
,a ti,is outtali currently ill Tier 2 (nlonitorea monthly)? Yes [] No X
rro5 lrii5 OuCrail ever in Tier 2 (monitored monthly) dluring the past year? Yes ❑ No X
it tnib uutraii was in Tier 2 last year, wily was monthly monitoring aiscontinued?
Sall",pies oeiow oencnmarKS 10 QaCfeaSe ireal.ency El
I'tacarvea iron', DvvQ to reduce monitoring frequency ❑
.�ti Icl ❑
r'v..Z:, LMb SUu monitu[eU recausG of venicie Maintenance activities? Yes ❑ No X
d:�Cric
LjaLu:
Coil
I'll AI
4,G5! I
Tolai
Rainfall,
inches
Parameter, (units)
TbS
SUD
COD
TN
Cobalt
Total
Recoverable
ph
—
I
rff„rx�nliA�
100
30
120
-30
30
NIA
0.275
6-9
6.1
udlyy
1.5
0.57
16
15

.-�Li�11ilU[idl Vuttafl Aiic`tCfii»Gni
Uuitall Nu. 004
is tnjs outtail currently In Tier 2 iroomEorea monthly)?
Aas tills outtail ever in Tier 2 (monitored monthly) during the past year?
it trus Outfall was it% Tier 2 Iasi year, why was monthly monitoring discontinued?
Lrluugn consecutive samples nelovv bar+chmarks to decrease frequency ❑
nt�;cr-ivao approval IEon-, DVVQ to reaucc monitoring frequency ❑
Otncr ❑
VvaS tnis SDO monitored because of vehicle maintenance activities?
Yes❑
Yes❑
Yes❑
No X
No X
No X
---- --
-__,- Parameter, (units) --------
be,ichrnark
Total
Rainfall,
inches
NIA
100
30
36
120
30
NIA
6-9
bate Sample
Collected,
cnmiddlyy
_D 25)14
0.57
200
�v .q��.
99
*"
4.5
3.48
.+�$us�,;'�,
--
�+
6.4
T
I
SWU-toA-Gen�t�c-13'u�c jG'� _

-c, i,f j unaer pcnaity Jr lavv, irtat inls Document aria all attachments were prepared under my airection or supervision In accordance with a
,si:.ii, aesi ned to assure tnat qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
rc� saris who manage the system. or those persons airectiy responsible for gathering the information, the information submitted is, to the
ucs, :.if my Knowledge ana +relief true accurate and complete. I am aware that there are significant penalties for submitting false information,
�,�c►�„7�nc the possiway. of fines and imprisonmenticr knowing violations "
J �f aiure - s' ` ,
l� plc 7T `
For questions, contact your local Regional Office:
uv_VQ ftc�,y«a� Omc. e;o,eedct �nr�,imat,or�:
AbHL%, iLLE REGIONAL OFFICE
1090 1 S l-1igh�%,&\ 70
S��annariva. NC 28778
(828) 21)o-4511U
RALLIGH REGIONAL OFFICE
38t1U Barrett Drke
Ralei-h. \C 170U9
19191 791--42i1U
H INSTON-aALEM REGIONAL OFFICE
585 WauLIhioMil Street
b1Instun-Sarni. Nc' 2710
(33o)771-5uoo
FAYIE:TTEVILLE REGIONAL OFFICE
225 Green SEreet
S)stel Building Suite 714
Va) ette:ville. NC 28301-50 43
[phone]
W AsHINGTON REGIONAL OFFICE
943 Washington Square: Mall
Washintun. NC 27889
t 2 5 2) 946-0481
CENTRAL OFFICE.
1617 Mail Service Center
Raleigh. NC 27699-1617
{ 9191 807-b300
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington. NC 28405-2845
[phone]
To preserve- prore:cl
and enhances
1V'W 7 caruum "s waist.__
5WU-264-G�renc-� al�ac��'

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27 7
NPDES Permit be = S 0001
Signature Date
Outfall No. 1 Dates 2-9-15, 4-25-14, 10-7-13,1-14-13, 5-30-12, 11-29-11
Parameters rveved Obse rations
Color No color on all dates except 4-25-14 = discharge brown with light tint.
Odor none on all monitoring dates
Clarity clear =1 or 2 rating on all monitoring dates except 3 rating on 4-25-14
Floating Solids none or small amount = 1 or 2 rating on all monitoring dates except 3 rating
on 4-25-14
Suspended Solids no suspended solids = 1 or 2 rating on all monitoring dates
Foam no foam on all monitoring dates
Oil Sheen no oil sheen on all monitoring dates except 1-14-13 = minor sheen
observed in parking lot typical of vehicle parking lot.
Erosion no erosions on all monitoring dates
Other Obvious indicators of SW pollution none on all monitoring dates except 4-25-14 = some
discoloration, pollen, grass clippings in ditch and at
culvert leading into SD-001 culvert pipe.

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES Permit NAjjb.15er r NCS 0 "Vi
Signature Date L19ZI�
4utfall NO. 2 Dates 2-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
ervations
Color
No cblar on all dates except 1-14-13 = light tinted translucent yellowish.
Odor
none on all monitoring dates
Clarity
clear = 1 or 2 rating on all monitoring dates except 3 rating on 2-9-15 & 4
rating on 1-14-13.
Floating Solids
none or small amount = 1 or 2 rating on all monitoring dates.
Suspended Solids
no suspended solids = 1 or 2 rating on all monitoring dates.
Foam
no foam on all monitoring dates.
Oil Sheen
no oil sheen on all monitoring dates.
Erosion no erosions on all monitoring dates except 4-25-14
Other Obvious indicators of SW pollution none on all monitoring dates except 4-25-14 = no erosions
at immediate outfali point but there is some holes in the
pavement above the pipe, undermining the pipe / headwall
area. There is some erosion in surrounding area of the
slope as noted above.

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES = S 00017
Signature Date
Outfall No Dates 2-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
Parame
Color No col r on all monitoring dates except 1-14-13 = light tinted
Odor none on l monitoring dates
Clarity clear = 1 or 2 r ing on all monitoring dates except 3 rating on 1-14-13 & 3
rating on 10-7-13.
Floating Soli none or small amount = 1 or 2 rating on all monitoring dates except a 3
rating on 2-9-15 & a 3 rating on 10-7-13.
Suspended Solids no suspended solids = 1 or 2 rating on all monitoring dates except 3 rating
on 10-7-13
Foam no foam on all monitoring dates.
Oil Sheen no oil sheen on all monitoring dates.
Erosion no erosions on all monitoring dates except 11-29-11 & 5-30-12.
Other Obvious indicators of SW pollution none on all monitoring dates

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27'517
NPDES Permit Ndmbei = NC-S OOD1 dz
Signature C, Date
Outfall No. Dates 2-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
arameters Surveyed Obsbrvations
Color no colorbnall monitoring dates. �
Odor none on all monitoring dates
Clarity clear = 1 or 2 rating on all monitoring dates.
Floating Solids n e'or small amount = 1 or 2 rating on all monitoring dates.
Suspended Solids no suspended solids = 1 or 2 rating on all monitoring dates.
Foam no foam on all monitoring dates.
Oil Sheen no oil sheen on all monitoring dates.
Erosion no erosions on all monitoring dates.
Other Obvious indicators of SW pollution none on all monitoring dates.

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27 7
NPDIES Per - N 00017
Signature Date
Outfali No. 5 Dates 2-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
Parameters Surveved ) Observatio
Color
no col& n�fimonitoring dates.
Odor
none on all monitoring dates.
Clarity
clear = 1 or 2 rating on all monitoring dates.
Floating Solids
none or small amount = 1 or 2 rating on all monitoring dates.
Suspended Solids
no suspended solids = 1 or 2 rating on all monitoring dates.
Foam
no foam on all monitoring dates except foam observed at outlet pool on 5-
30-12.
Oil Sheen
no oil sheen on all monitoring dates.
Erosion
no erosions on all monitoring dates.
Other Obvious indicators
of SW pollution none on all monitoring dates

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES =5glO171
Signature Date v I.
Outfall No. / 61 Pates 2-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
Color No color on all rr itoring dates except 10-7-13 = light brown in ditch
Odor none on all monitoring dates
Clarity clear = 1 or 2 rating on all monitoring dates except 4 rating on 10-7-13.
Floating Solids none or small amount = 1 or 2 rating on all monitoring dates except a 3
rating on 2-9-15 & a 3 rating on 5-30-12.
Suspended Solids no suspended solids = 1 or 2 rating on all monitoring dates except 3 rating
on 10-7-13
Foam no foam on all monitoring dates except foam at pipe outlet at fence on 5-30-
12.
Oil Sheen no oil sheen on all monitoring dates except a sheen was observed at
parking lot outfall 7, 5-30-12.
Erosion no erosions on all monitoring dates.
Other Obvious indicators of SW pollution none on all monitoring dates

Summary of Visual Monitoring Results
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 275 7
NPD - Permit b = N S 0001
Signature Date
Outfall No. 7—D;tes-9-15, 4-25-14, 10-7-13, 1-14-13, 5-30-12, 11-29-11
Parameters;Surveved Obtervations
Color
Very fight tan (2-9-15), light brown 1 light tint (4-25-14), clear off parking lot
light rown near brush at property line (5-30-12), clear off parking lot light
brown -n rip rap lined ditch (1-14-13), dear on ail other monitoring dates.
Odor
none on II monitoring dates
Clarity
3 or 4 rating all monitoring dates.
Floating Solids
1 or 2 rating on 1-14-13 & 2-9-15. 3 or 4 rating on 5-30-12, 4-25-14 & 10-7-13.
Suspended Solids
1-or 2 rating on 4-25-14 & 1-14-13. 3 or 4 rating on 5-30-12, 10-7-13 & 2-9-15.
Foam
no foam on all monitoring dates.
Oil Sheen no oil sheen on all monitoring date except very minor sheen in the
employee parking lot on 4-25-24 & 1-14-13.
Erosion no erosions on all monitoring dates except 5-30-12 = eroded channel.
Other Obvious indicators of SW pollution 1114113, 10-7-13 & 4-25-14 = rip rap channel looks good
and is effectively slowing down velocity in the ditch.

Summary of Best Management Practices
Kennametal, Inc. Henderson Plant
139 Warehouse Road
Henderson, NC 27537
NPDES Permit Number = NCS 000171

The following site -specific BMPs are required for this Facility:
Table 7 Site -Specific Best Management Practices ;as
BMP No./
Location
Site -Specific Best Management Practice
SWPPP
Section 3
Reference
Implement
Date
1-1
Floor drains in shop and boiler room permanently sealed
3.3.8
06/17/97
1-2
Installed enclosed steam dryer for recyclable powders,
eliminatingopen air drying
3.2.6
02/01/99
—'--
1-3
Provide tarpaulin(s) to cover materials stored outdoors
3.2.8
06/15/12
1-4
Instruct employees to not store equipment and materials
imm diately adjacent to storm inlets, if possible
3.2.6
10/13/11
1-5
Maintain Maintain energy dissipator systems at outfalls SDO-002
through SOO-005
3 2 10
10/13/11
1-6
Place riprap or stone at outfalls SDO-002, SDO-003,
SDO-004, SDO-005 to minimize erosion at outfalls
3.2.10
06/15/12
1-7
Place riprap or stone in eroded swale at SDO-007 to
stabilize area
3 2 10
06/15/12
1.8
Cleanout sediment buildup and replace damaged weir at
SDO-001
3.2.10
06/01/13
1-9
Construct gravel access road to transformers, to include
new drainage culverts at SDO-006 drainage ditch and
vehicle turnaround
3.2.12
06/01/13
-(Q
S �e r ��0i�-
Kennametal, Inc. SWPPP/SPCC Plan
December 2012 Page 24

The following baseline BMPs are required for all Facility buildings/ areas:
Table 6 Baseline Best Management Practices
BMP No.
Required Baseline Best Management Practice
Ref.
Implement
Date
Facility-1
Conduct stormwater pollution prevention training.
3.2.1
10/13/11
& On -going
Facility-2
Conduct Good Housekeeping Program.
3.2.2
10/13/11
& On -going
Facility-3
Conduct Preventative Maintenance Program.
3.2.3
10/13/11
& On -going
Facility-4
Conduct Spill Prevention and Response Program.
3.2.4
10/13/11
& On- oin
Facility-5
Inform on -site contractors of SWPPP compliance issues -
3.2.5
10/13/11
ensure pollution prevention by all workers.
& On -going
Facility-6
Minimize industrial activity exposure to precipitation and
3.2.6
10/13/11
run-on.
& On -going
Facility-7
Conduct daily visual observations of equipment for drips
3.2.7
10/13/11
and leaks.
& On -going
Facility-8
Place drip pans under leaking equipment.
3.2.7
10/13/11
& On -going
Facility-9
Remove excess scrap metals, scrap parts, and empty
3.2.7
10/13/11
containers exposed to precipitation.
& On -going
Facility-10
Cover open -topped dumpsters, scrap bins, and recycle
3.2.8
10/13/11
bins exposed to precipitation.
& On -going
Facility-11
Maintain vegetative buffers around Facility perimeter.
3.2.10
10/13/11
& On -going
Facility-12
Repair and stabilize areas of erosion with grass, mulch,
3.2.11
10/13/11
check dams, or appropriate measures.
& On -going
Facility-13
Make sure all ASTs are labeled with contents, capacity,
3 2 4
10/13/11
and an emergency phone number.
& On -going
Facility-14
Maintain on -site stormwater systems, including ditches and
3 2 10
10/13/11
outfall energy dissipators
& On -going
Facility-15
Ensure personnel have access to standard spill kits.
3.3.2
10/13/11
& On -going
Kennametal, Inc. SWPPP/SPCC Plan
December 2012 Pacle 23

Table 5 Existing Best Management Practices
BMP No.
Existing Best Management Practice
Ref.
Exist-1
Most industrial activities occur indoors.
3.2.6
Exist-2
Good housekeeping practices have been implemented at the Facility.
3.2.2
Exist-3
Preventative maintenance is performed of Facility systems.
3.2.3
Stormwater pollution prevention training is performed annually at the Facility.
Department supervisors are trained and then administer training to
Exist-4
employees in their work areas that may contribute to stormwater pollution.
3.2.1
Training covers spill prevention and response, good housekeeping, material
management practices, and other relevant stormwater topics.
Exist-5
Covered storage areas are provided throughout the Facility.
3.2.6
Exist-6
Security fencing provided at Facility.
3.2.4
Interior floor drains throughout the Facility are routed to the sanitary sewer
system. Floor drains in the milling room have a sedimentation sump to
Exist-7
t separate carbide powders from washwater. Drainage then travels o a main
3.3.8
sump for additional opportunity for sedimentation, before it passes through
the solvent/sludge separator to on to the municipal sewer line. No drainage
water is discharged to stormwater conveyances from these areas.
Floor drains in the QA laboratory and south warehouse empty into an
underground sedimentation tank behind the main building. This
Exist-8
sedimentation tank allows metal powders to settle out before discharging to
3.3.8
the municipal sewer. No drainage water is discharged to stormwater
conveyances from these areas.
Exist-9
Waste dumpsters are emptied on a timely basis.
3.2.6
Exist-10
An SPCC Plan has been developed that covers the Facility.
3.2.4
Exist-11
Loading and unloading of materials and products to and from trucks occurs
3.2.6
directly into the building via covered docks.
Hazardous waste drums are transported off -site by a licensed transporter as
Exist-12
soon as they are full. There is no extended storage of hazardous waste
3.2.7
other than the satellite accumulation at the points of generation.
Exist-13
Dry granular absorbents are used to contain minor drips, leaks, and spills.
3.3.2
Exist-14
Secondary containment is provided for bulk ASTs throughout the Facility.
3.3.5
Exist-15
Oil and hazardous substances drums and containers are stored indoors; spill
3.2.6
pallets are also used at the Facility.
Exist-16
Spill response equipment and materials are available throughout the Facility.
3.3.2
Exist-17
Energy dissipator devices are provided at several Facility outfalls.
3.2.10
Exist-18
Vegetative buffers are provided around the perimeter of the Facility.
3.2.10
Kennametal, Inc. SWPPP/SPCC Plan
December 2012 Paqe 22

There were no significant changes in industrial activities at
the Henderson Plant during the permit starting period to this
date, June 18, 2015.
Robert T. McGhee
Signature
Date
Senior EHS Analyst ISCL
KennametI, Inc. Henderson P4,nt
139 Warehouse Road
Henderson, NQ27537
NPDES Permit Number = NCS 000171

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
Ilomix CaBolma DI jwB oP eaejmy illmemu amlaw Resouces - StoRl wareff Pematwc
Facility Name:
Permit Number:
Location Address
Kennametal, Inc. Henderson Plant
NCS000171
139 Warehouse Road
Henderson, NC 27537
County: Vance
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all attachments were
developed and implemented under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information required by the SPPP. Based on my inquiry of the person or persons
who manage the system, or those persons directly responsible for gathering the information, the information gathered is, to the
best of my knowledge and belief, true, accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP has been fully
implemented at this facility location in accordance with the terms and conditions of the stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and imprisonment for
knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMW,ATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature
or type name of person �igning above
Date 6/,19/,204�5
Senior EHS Analyst
Title
SPPP Ceaurica:on 10/13

NCDENR
N- C--- OEPNtTMENT OF
E_RONMEN, •NO NR AR RESOURCES
Division of Water Quality / Surface Water Protection
National Pollutant Discharge Elimination System
REPRESENTATIVE OUTFALL STATUS (ROS)
REQUEST FORM
FOR AGENCY USE ONLY
Date Received
Year
Month
Day
if a facility is required to sample multiple discharge locations with very similar stormwater discharges, the
permittee may petition the Director for Representative Outfall Status (ROS). DWQ may grant Representative
Outfall Status if stormwater discharges from a single outfall are representative of discharges from multiple
outfalls. Approved ROS will reduce the number of outfalls where analytical sampling requirements apply.
If Representative Outfall Status is granted, ALL out are still subject to the qualitative monitoring
requirements of the facility's permit —unless otherwise allowed by the permit (such as NCG020000) and DWQ
approval. The approval letter from DWQ must be kept on site with the facility's Stormwater Pollution
Prevention Plan. The facility must notify DWQ in writing if any changes affect representative status.
For questions, please contact the DWQ Regional Office for your area (see page 3).
(Please print or type)
1) Enter the permit number to which this ROS request applies:
Individual Permit (or) Certificate of Coverage
N C S 0 0 0 1 7 1 I N I C I G
2) Facility Information:
Owner/Facility Name Kennametal, Inc. Henderson Plant
Facility Contact
Street Address
City
County
Telephone No.
Robert T. McGhee
139 Warehouse Road
Henderson
Vance
252 430 3303
— State NC ZIP Code 27537
E-mail Addres [e-mail]
Fax: [phone]
3) List the representative outfalls) information (attach additional sheets if necessary):
Outfall(s) SD-002 is representative of Outfall(s) SD-001, SD-003, SD-007
Outfalls' drainage areas have the same or similar activities? X Yes ❑ No
Outfalls' drainage areas contain the same or similar materials? X Yes ❑ No
Outfalls have similar monitoring results? X Yes o No ❑ No data*
Outfall(s) SD-004 is representative of Outfall(s) SD-005, SD-006
Outfalls' drainage areas have the same or similar activities? X Yes ❑ No
Outfalls' drainage areas contain the same or similar materials?
Outfalls have similar monitoring results?
Outfall(s)
is representative of Outfall(s)
Outfalls' drainage areas have the same or similar activities?
Outfalls' drainage areas contain the same or similar materials?
Outfalls have similar monitoring results?
X Yes ❑ No
X Yes ❑ No ❑ No data*
❑ Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No ❑ No data*
"Non-compliance with analytical monitoring prior to this request may prevent ROS approval. Specific
circumstances will be considered by the Regional Office responsible for review.
Page 1 of 4
SwU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
4) Detailed explanation about why the outfalls above should be granted Representative Status:
(Or, attach a letter or narrative to discuss this information.) For example, describe how activities and/or
materials are similar.
SEE ATTACHED LETTER
5) Certification:
North Carolina General Statute 143-215.6 B(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record,
report, plan, or other document filed or required to be maintained under this Article or a rule implementing this
Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the [Environmental Management]
Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed
ten thousand dollars ($10,000).
I hereby request Representative Outfall Status for my NPDES Permit. I understand that ALL outfalls are still
subject to the qualitative monitoring requirements of the permit, unless otherwise allowed by the permit
and regional office approval. I must notify DWQ in writing if any changes to the facility or its operations take
place after ROS is granted that may affect this status. If ROS no longer applies, I understand 1 must resume
monitoring of all outfalls as specified in my NPDES permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of son Signing: Robert T. McGhee
Btle: (S-L5-hi0alvst ISM}-, r° O
18_
(Date igned)
Please note: This application for Repr sentative Outfall Status is subject to approval by the
NCDENR egional Office. The Region Office may inspect your facility for compliance with the
conditioO of the permit prior to that approval.
ial Checklis for ROS Request
This application�should include the following items:
X This completRd form.
X Letter or narrative,elaborating on the reasons why specified outfalls should be granted representative
status, unless all information can be included in Question 4.
X Two (2) copies of a site map of the facility with the location of all outfalls clearly marked, including the
drainage areas, industrial activities, and raw materials/finished products within each drainage area.
X Summary of results from monitoring conducted at the outfalls listed in Question 3.
Any other supporting documentation.
Page 2 of 4
SWU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
Mail the entire package to:
NC DENR Division of Water Quality
Surface Water Protection Section
at the appropriate Regional Office (See map and addresses below)
Notes
The submission of this document does not guarantee Representative Outfall Status (ROS) will be granted as
requested. Analytical monitoring as per your current permit must be continued, at all outfalls, until written
approval of this request is granted by DWQ. Non-compliance with analytical monitoring prior to this request
may prevent ROS approval. Specific circumstances will be considered by the Regional Office responsible for
review.
For questions, please contact the DWQ Regional Office for your area.
Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778
Phone [phone]
FAX [phone]
Fayetteville Regional Office
Systel Building,
225 Green St., Suite 714
Fayetteville, NC 28301-5094
Phone [phone]
FAX [phone]
Mooresville Regional Office
610 East Center Ave.
Mooresville, NC 28115
Phone [phone]
FAX [phone]
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628
FAX [phone]
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Phone [phone]
FAX [phone]
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Phone [phone]
FAX [phone]
Winston-Salem Regional Office
585 Waughtown Street
Winston-Salem, NC 27107
Phone [phone]
Water Quality Main FAX [phone]
Central Office
1617 Mail Service Center
Raleigh, NC 27699-1617
Page 3 of 4
SVVU-ROS-2009 Last revised 12/30/2009

Representative Outfall Status Request
Phone [phone] FAX [phone]
Page 4 of 4
SWU-ROS-2009 Last revised 12/30/2009

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
APR
r M T
Q E-=""
April 24, 1995
Mr. David E. Brainard
Armstrong Geological & Engineering Services, P. C.
9101 Leesville Drive, Suite 113
Raleigh, NC 27613
Subject: Request for Identical Outfall Exemption
NCSOOO171
Kennametal, Inc.
Vance County
Dear Mr. Brainard:
Your request to sample the stormwater discharge outfalls on the above referenced site for purposes
of NPDES stormwater permit monitoring requirements has been reviewed by Steve Ulmer of the Water
Quality Section staff. Your request described six outfalls that discharged stormwater from the facility's
industrial areas.
According to the site maps that accompanied your letters of request, outfalls #2,#3,#4 and #5 are
primarily the outfalls of concern. Clearly outfalls # 1 and #6 do not discharge stormwater from industrial
arias.
Based upon your discussions with Steve Ulmer, the stormwater discharges from outfalls # 2 and
#4 shall be considered representative outfalls for stormwater analytical monitoring. As mentioned in your
letter dated April 22, 1995, continued progress in "plugging" indoor Moor drains that lead to these outfalls
is required. Elimination of the indoor floor drain connections to the storm sewers shall be completed by
November 1, 1995.
Visual observation shall be required at outfall #3. ff deemed necessary, analytical monitoring at
outfall #3 may be required in the future. The requested determination is warranted and in accordance with
Chapter 40 of the Code of Federal Regulation part 122.21 (g) (7). We authorize you to sample at outfalls
#2 and #4 as stormwater discharges representative of the runoff from the Kennametal, Inc., facility for
your NPDES stormwater permit monitoring requirements.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/733-2314 9191946-6481 919/395-3900 919/896-7007
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 'telephone. [phone]
An Fqu;d Opportunity Affirmative Action 1:niptoyer