NCS000581_MONITORING INFO_20190723

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
� f LJ U
'v
DOC TYPE
❑FINAL PERMIT
i� MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ Doj9 o-]
YYYYMMDD

DUKE
ENERGY®
PROGRESS
File: 12520 R
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Duke Energy Progress. LLC
Roxboro 5learn Elecdric Plant
1700 Dwnut rav Road
sernora. NC 27;4 i
July 11, 2019
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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 Quarterly Stormwater Discharge report for Duke Energy Progress, LLC. For the 2"`'
monitoring period.
I certify, lender penalty of la►t,, that this docrnnent and all attachments were prepared tinder lily
direction or supervision in accordance with a system designed to assure that qualified personnel
properly Mather 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 knmvledge and belief; trite, accurate,
and complete. 1 am aware that there are significant penalties for 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 Gencrating Plant
Enclosures

STORN'[WATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NCS000581 SAMPLES COLLECTED DURING, CALENDAR YEAR: 2019
(This monitoring report shall be received by the Division no later than 30 days from -
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME Roxboro Electric Steam Plant
PERSON COLLECTING SAMPLE(S) Scott Brooks
CERTIFIED LABORATORY(S) Duke Analytical Lab Lab #_248
Roxboro Steam Electric Plant Lab
Part A: Specific Monitoring Requirements
Outfall
No.
Date
Sample Collected
00400
00530
Total
Rainfall'
PH
TSS
mold&/ r
inches
1 Standard
m
Benchmark
6-9
100
SW -A
6/7/2019
1.6
6.86
110
COUNTY Person
PHONE NO. [phone]
F
NATURE OF PERM ITTEE OR DESIGNEE
QUIRED ON PAGE 3.
Outfall
Additional
Priority Pollutant Metals
00999
01079
00978
00998
01113
01118
01074
01114
01268
00982
No.
Boron
Ag'
As
Be
Cd'
Cr'
Ni'
Pb'
Sb
TV
mg/1
mg/1
mg/1
mg/I
mg/I
mg/1
mg/l
mg/1
mg/l
mg/1
Benchmark
N/A(monitor only)
0.0003
0.34
0.065
0.003
0.9
0.335
0.075
0.09
N/A(monitor only)
SW -A
0.061
<0.00112
<0.001
<0.00I
<0.001
0.00559
0.00441
0.0013
<0.001
<0.0002
Footnotes: Permit # NCS000580 (Part 11 Page 7 of 15)
4. For each sampled measureable storm event, the total precipitation must be recorded. An on -site rain gauge
Form SWU-247, last revised 21212012
Page 1 of 3

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.
S. These parameters shall he 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 11 Page 9 of 15
1. Hardness- dependent. Benchmark based on translation of dissolved value into total recoverable with
an assumed hardness of 25 mg/I 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 Aetivities 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 1
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
moldd/ r
MG
inches
m
mgA
unit
gallmo
Form SWU-247, last revised 21212012
Page 2 of 3

STORM EVENT CHARACTERISTICS:
Date 6n12019_
Total Event Precipitation (inches): 1.6
Event Duration (hours): (only if applicable — sec 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
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 fines and imprisonment for knowing violations."
--
`//(`r1A_
(Signature of
0 (116 LN
(Date)
Form SWU-24T last revised 21212012
Page 3 of 3