NCS000581_MONITORING INFO_20191105

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STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
IVL 5 o U D�O/
DOC TYPE
❑1/FINAL PERMIT
Lx. MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
0 OTHER
DOC DATE
❑
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
RECp"ED
NOV 0 6 2019
Duke Energy Progress, UC
Roxboro Sfemn ► lectric Plant
1700 Dummivap Road
Senroru, NC 27343
October 21, 2019
BEN t ►"L FILES
DV#/R SECTION
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
is being submitted monthly due to Outfall SW -A exceeding the benchmark for TSS on June 7,
2019. There was no discharge for outfall SW -A for the month of September 2019.
I certify, Thaler penalty of law, that this document and all attachments were prepared under rely
direction or supervision in accordance with a systent designed to assure that qualified personnel
properly gather and ei,aluate the infarmatlon submitted. Based oil lily lltquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
inforinatlon, the information .submitted i1', to the best of my knowledge and belief, trite, accurate,
and Complete. I am aavare that there Lire sign iflcaiit penalties for submitting false tltfarmalion,
including the possibility of fines and imprisonment far knoaving 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

r
STORMWATER 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 COUNTY Person
PERSON COLLECTING SAMPLE(S) RyanEnoch PHONE NO. [phone]
CERTIFIED LABORATORY(S) Duke Analytical Lab Lab #_248
_Roxboro Steam Electric Plant Lab
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Part A: Specific Monitoring Requirements
Outfall
No.
Date
Sample Collected
00400
00530
Total
Rainfall'
pH'
TSS
mo/dd/ r
inches
Standard
m
Benchmark
6-9
100
SW -A
September 2019
No Flow
Outfall
Additional
Priority Pollutant Metals'
00999
01079
00978
00998
01113
01118
01074
01114
01268
00982
No.
Boron`
Ag'
As
Be
Cd'
Cr'
NO
Pb'
Sb
TV
mg/I
mg/I
mg/l
mg/1
mg/I
mg/I
mg/I
mg/I
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
Footnotes: Permit # NCS000590 (Part II 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 I 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 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 II Page 9 of 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 far 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/dd/ r
MG
inches
m
m
unit
gal/mo
Form SWU-247, last revised 21212012
Page 2 of 3

STORM EVENT CHARACTERISTICS:
Date
Total Event Precipitation (inches):
Event Duration (hours): (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 cif 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."
(Signature of Permittee)
1a1aa It
(Date)
Form SWU-247, last revised 21212012
Page 3 of 3