NCS000581_MONITORING INFO_20191204

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STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT N0.
NL
DOC TYPE
❑�lFINAL PERMIT
L�f. MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ �� � � /,-::) v `I
YYYYMMDD

g �' DUKE
ENERGY®
PROGRESS
File: 12520 R
Duke Energy Progress. UX
Roxboro Steanr F,learic Plnru
17W Dunnau'av Road
Senrora. NC 27J4 3
November 21, 2019
NC Division of Environmental Management--�-'�:: D
Division of Water Quality DEC 0 4 2019
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617 Dti/! R SECT10-111
Subject: Roxboro Steam Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NCS000581
Stormwater Discharge Monitoring Report
Dear Sir or Madam:
In accordance with the NPDES Permit Number NCS000581 concerning the subject facility,
enclosed is the Monthly Stormwater Discharge report for Duke Energy Progress, LLC. This report
has been submitted monthly due to Outfall SW -A exceeding the benchmark for TSS on June 7,
2019 but has been below the benchmark in succeeding months; however the benchmark for Copper
was exceeded on October 31, 2019.
I certify, under penalty of lavt,, that this document and all attachments lvere prepared Under my
direction or .stlperi,is on in accordance 4vlth a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on iry inquiry, of the person or
Persons Who Manage the system, or those persons directly responsible for gathering the
information, the infornlatiorl Stlbinitted is, to the hest of'my knowledge and belief, true, accurate,
and complete. I ail ait are that there are significant penaltiesfor submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Please contact Ms. Lori Tollie at [phone], if there are any questions concerning the data in
this submittal.
Sincerely,
Tom Copolo- Manager
Roxboro Steam Electric Generating Plant
Enclosures

/I
P—A Number NC.tiW _ I
FACIMIT NAME
PERSON COLLF.CfINC SAMPIIF N)
CERTIFIgp [.A HORA'InRS(S)
Pan A: Specific hl.wit-ing Requltrmenla
STOICNI"'ATER UISCHA RCE f llrryAt.I. (Spf ll
hl()NITOR INC RE.M)RT
SANIPI.ES Ct11,L8t.7Ep p11RLNG CALF_WRA R SEAR: 2019
(fht. munit,wi,g repmt shall he ,m"N d by the Uiv65..o nu later lhao 10 da}. fn.m the dare
the facility -hires the c ipllolt multi fnao the Ialxrratun.)
R—N—FJk I k- Steam Plant COUNTS PERSON
If— S F—h
puke F..,y L.h 0 2Jlt
Shorty F:nrirunmrm.l Senir-, Inc. 1,.h Y 329
PI2tWE:NO. Xv SW-6lw
S IGNA"FORE; OF PERM ITTFF. OR DEM%LE:
RE(7111RE:U ON PA(W. I
t lntfaR fbtr
004M
0'"
tm901
719t/1 -
O "'
D0530
MR"
No. S.mpk
Cnlleeted
T.xal R.lnhll
pH
Gspp-T.wrl
S-4-1m. Taal
%I —,?Twat
Zlee T.rt.l
'fS5
Nao-Pri.r OIL do
Grease
El—
mdddlrr
lneh-
ssnit
di.
W1,m
m
N
S'_A 10l31l2019
UA2
c74
O.0a
1.a
O.WIi3
4-25
0.Ot3
4.Y
<0.05
(7ot(all
parr
0107Y
WY78
W99h
01113
0111N
OIOTJ
011li
91261t
WYli2
Nu,
Sample
Colleetad
AR
As
Ile
Cd
Cr
NI
Ph
Sb
TI
mrYddl 'r
m
m
m
I.
SW -A
10131f20E9
<a.t1t102
<O.WI
<0.WI
N.Wa
N001
U,u167
<0.W1
<0.001
10.0002
fkWinnak e.-C.Lineet irchsdc Copp. T.W a SW -A
Does Nis faciLly Petf— \'elide M.in[en.ix'e Ac0...... using m0rc Ih.n S5 pall.. of .— MI oil p:r month? Y. x
(if yes, vmpiele Pan H)
Part H: Yehiek M.tntenanre A,tirity SI-11ortnR Requlnmenls
Outran
pale
SWSU
W556
00530
00100
Nu.
Sample
'1'real Fbw Iif
'11n1a1 ll.lnf.11
(III &Ut—,l if
Nan-W4-
Tot.I Sospmded
pil
NM Molrrr fill
Collected
applicable)
.PIPL)
OSGIFPII
S.Lkh
IlsaRe
(%I bad 1661
SCT -11F Alk if
.ppl.
.,Wdd/rr
MG
inch-
Dell
Rmo
STORh1 FVF'V' CHARACFF:RISTlQS:
Mall t/rigi—I ttud rate -4,y w:
pate 10131r2019 DW'irm of W:0ef (. uuhty
Tidal C-1 Pr dplta l.. (Ixh-): O.62 AR.: C-U.] F71-
ErenlDumlhn(hours): J (only if.pplicablc- see P=t) 1617 Mail Senior Centtt
Rakiph. Nwtb Cardin. 27699.1617
(if Roe thane srmiI e.enl was sa TWI
Ditto
Twat E-1 Pt. pltatwn fl 1c ):
Purist purathn (h­): fo01y if applicable -see permi[.)
-I crrtiry, under penally or law, 11.1 thisd—en—t and.11 .tL kee..L wnre p-p.rad -.der mk.c y dthur m wperr61- 1.--dance with. system
dmi> ed tss .Busy that qualified pe-rm.el pnrperlr Rather ..d eralu.te the Inhwtaathro suhmlded. Hasod .rn my i.quin .d [he perwro sm perr.rns wh.r
..-alto the system, or thv.re P•+�` d0escly lesprn�Rde for K+lherfeR the iafrxm.tluo. the mlorma[km snlaaltted is w the best d my kssawkdge and
how. We, a -In and sr,mplete. 1 am aware Iha1 there pe..It" ft.. hmidlmg false lofa mach-, mclud!PR the p. 41,ili[y d fii— and
®prb'onmml fur kurx IaR r4rla
ISIRmtureu Permltury lUarel
Form SMI 247, last rrvised 1R7f2017
P.rmM1 Numb. NCSOODM1 pagr 1011

DUKE
ENERGY,
PROGRESS
File: Mayo 12520-R
NC Department of EnviroLJ11ental Quality
November 22, 2019
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
Division of Water Quality �y
ATTENTION: Central Fil s �d
1617 Mail Service CenterJ°"
Raleigh, North Carolina 27 99-1617
¢ 2019
Subject: 15A N. C. Admin. Code 2B .0506 pli
84�&
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System Stormwater Permit NCS000580
Stormwater Discharge OUtfal IS 002 and 010 Monitoring Report
Dear Sir or Madam:
In accordance with Part III. Section E2 of NPDES Stormwater Permit Number NCS000580, enclosed is
the year 3, October 2019 Stormwater Discharge monitoring report For OUtfallS 002 and 010 for Duke
Energy Progress, LLC. - NPDES Stormwater Permit Number NCS000580. To note, OUtfalls 002 and 010
are in tiered status.
I certify, underpenalty oflaw, that this document and all attachments were prepared under my direction or
supen4sion in accordance with a system designed to assure that qualified personnel propedly 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 is formation submitted is, to the best of my knowle(rge and
belief, true, accurate, and complete. I ant aware that there crre sigtrificant penalties fnrsubmining false information,
including the passibility of fines oad inrprisoninent fbr knon,ing violations.
Please contact Ms. Lori Tollie at [phone] if there are any questions concerning the data in this
submittal.
Sincerely,
__J
Tom Copolo- Manager
Mayo Electric Generating Plant
Enclosures
LPW/Ipw

STORMWATER DISCHARGE OUTFALL (SDO)
NIONITORING REPORT
Permit Number: NCS000580 SA,),•IPLES COLLECTED DURING CALENDAR YEAR: 2019
(This monitoring report shall be received by the Division no later than 34) days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME ti,Iayo Electric Steam Plant
PERSON COLLECTING SAMPLES) John Arthur Cole
CERTIFIED LABORATORY(S) Duke, Shealv Lab# 248 & 329
_Mayo Plant Lab Lab #_5064_
Part A: Specific Monitoring Requirements
COUNTY Person
PHONE NO. [phone]
Fi
NATURE OF PERMITTEE OR DESIGNEE
QUIRED ON PAGE 3.
Outfall
No.
Date
Sample Collected
00400
39516
01119
00981
71901
01092
00530
Total
Rainfall'
pH-'
PCBs
Copper'
Total
Selenium
Total
Mercury
Total
Zinc'
Total
TSS
Non -Polar
Oil & Grease
mo/dd/ r
inches I
Standard
AgA
mo
m
m
m
m
m
Benchmark
6-9
Detected
0.010
0.056
N/Az
0.126
100
15
002
10/16/19 @ 15:09
0.8
7.26
ND <0.40
0.0057
<0.001
0.00000149
0.012
<2.7
ND <5.0
O10
10/16/19 @ 14:25
0.8
6.46
Not Tested
0.00514
<0.001
0.00000464
0.005
4.0
ND <5.0
Outfall
Additional Priority Pollutant Meta€s'
00999
01079
00978
00998
01113
01118
01074
01114
01268
00982
No.
Boron'
Ag'
As
Be
Cd'
Cr'
NO
Ph'
Sb
TV
0.00000
mg/1
mg/I
mg/I
mg/l
mg/l
mg/1
mg/I
mg/l
mg/l
mg/l
Benchmark
N/A(monitor only)
0.0003
0.34
0.065
0.003
0.9
0.335
0.075
0.09
rotor only)
002
0.080
<0.0002
<0.001
<0.001
<0.001
0.00261
0,00136
<0.001
<0.001
<0.0002
(110
<0.05
<0.0002
<0.001
<0.001
<0.0111
<0.001
0.00164
1 <0.00l
<0.001
<0.0002
Form SWU-247. last revised 2/2/2012
Page 1 of 3

Footnotes: Permit # NCS000580 Part II Pane 7 of 15
4. For each sampled measureable storm event, the total precipitation must be recorded. An on -site rain gauge
is required. Where isolated sites are unmanned for extended periods of time, a local rain gauge reading
may be substituted for an on -site reading.
5. These parameters shall be monitored only if coal or coal ash is transported through the drainage
areas of these outfalls during the semi-annual monitoring period in Table 2.
Footnotes: Permit # NCS000580 Part It Page 9'4 15
1. Hardness- dependent. Benchmark based on translation of dissolved value into total recoverable with
an assumed hardness of 25 mg/1 and a total suspended solids (TSS) concentration of 10 mg/l.
2. Values above the North Carolina water quality standard for mercury (12 ng/1) should be noted on the
DMR but do not trigger Tier responses. Concentrations infield blanks or method blanks associated
with the sample may be subtracted from the results for that sample, as long as all documentation of the
adjustment is provided with the DMR.
3. If pH values outside this range are recorded in sampled stormwater discharges, but ambient
precipitation pH levels are lower, then the lower threshold of this benchmark range is the pH of the
precipitation (within instrument accuracy) instead of 6 S.U. Readings from an on -site or local rain
gauge (or local precipitation data) must be documented to demonstrate background concentrations
were below the benchmark pH range of 6- 9.
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? —yes _X_no
(if yes. complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00556
00530
00400
Total Flow
(if applicable)
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
(Method 1664
SGT-HEM), if
appl.
.Total
Suspended
Solids
pH
New Motor
Oil Usage
mo/M r
MG
inches
m
m
unit
al/mo
Form SWU-247, last revised 2/Z2012
Pa,e 2 of 3

Comments:
• Outfall 010: Tier One
• Outfall 002: Tier Two
STORM EVENT CHARACTERISTICS:
Date _10116/19
Total Event Precipitation (inches): 0.8
Event Duration (hours): —6_ (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"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
hest 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 of Permittee
t t laa l l `1
(Date)
Form SWU-247, Iasi revised 2/2/2012
Page 3 of 3