NCS000546_MONITORING INFO_20190318

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
NIBS O 00 J v G
DOC TYPE
❑FINAL PERMIT
X MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DDCDATE
❑ Q U/! 0/
YYYYMMDD

(� DUKE
ENERGY.
March 11, 2019
NC Department of Environmental Quality
Attention: Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge Monitoring Report for:
Allen Steam Station — NCS000546 — Gaston County
Allen Steam Station
253 Plant Allen Rd.
Belmont, NC 28012
704 829-25S7
R'
CHAR 18 ZOO
CEN) PtwES
D /R SECTION
In accordance with Part III, E(2) of the above referenced NPDES Storm Water permit, the original and one
copy of the monthly monitoring reports for the outfalls that have been classified as Tier 2 or Tier 3 and are
now subject to monthly sampling, are attached. The period for sampling ended on February 28, 2019.
Enclosed is the DMR for outfalls SW001, SW007, SW009, SW010, SW016, SW018 and SW020.There
were no samples collected from these outfalls and are listed as "No Qualifying Flow" for the sampling
period. This was due to either nighttime rainfall events or lack of qualifying rainfall events.
Please direct any correspondence or questions concerning the Allen Steam Station NPDES Storm Water
Program to Elizabeth Glenn at [phone].
Yours truly,
Terry W. Tuck, General Manager II
Allen Steam Station
Duke Energy Carolinas, LLC
Attachments
bc: wlattachment Elizabeth Glenn
Steve Hodges
Tina Woodward
UPS Tracking: 1Z X67 601 24 9318 8299

STORMWATER DISCHARGE OUTFALL (SDO)
NIONITORING REPORT
Permit Number NCS000546
FACILITY NAi1ME Allen Steam Station
PERSON COLLECTING SAMPLE(S) NA
CERTIFIED LABORATORY(S) Duke Energy Carolinas. LLC NC Lab #248
Shealv Environmental Services, Inc. NC Lab #329
Part A: Specific i Monitoring Requirements
SANIPLES 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.)
COUNTY Gaston
PHONE NO. [phone]
SIGNATURE OF PER,tiMITTEE OR DESIGNEE
REOUIRED ON PAGE 3.
Outfall
No.
Date
Sample
Collected
50050
00400
01077
01002
01022
01012
01027
Total
Flow (if app.)
Total
Rainfall
pH
Silver, Total (as
Ag)
Arsenic,
Total (as As)
Boron, Total
(as B)
Beryllium,
Total (as Be)
Cadmium,
Total (as Cd)
mo/dd/ r
CMG
inches
m L
m
m L
mgfL
m L
SW00I
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH
OF FEBRUARY
2019
SW007
NIA
NIA
NO QUALIFYING FLOW FOR THE \MONTH OF FEBRUARY 2019
SW009
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SW010
N/A
NIA
NO QUALIFYING FLOW FOR THE 1MONTH OF FEBRUARY 2019
SWO16
N/A
N/A
NO QUALIFYING FLOW FOR THE \MONTH OF FEBRUARY 2019
SW018
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SW020
N/A
N/A
NO QUALIFYING FLOW FOR THE iMONTH OF FEBRUARY 2019
Outfall
No.
Date
Sample
Collected
01034
01042
01067
01051
01097
01147
01059
01092
Chromium,
Total (as Cr)
Copper, Total
(as Cu)
Nickel, Total
(as Ni)
Lead, Total
(as Ph)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As TI)
Zinc, Total (as
Zn)
mo/dd/ yr
m L
m L
m L
mgtL
m L
m L
m L
m L
SNV001
N/A
NO QUALIFA INC, FLOW FOR THE MONTH OF FEBRUARY 2019
SWO07
NIA
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SW009
N/A
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SWWO
NIA
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SIV016
N/A
NO QUALIFYING FLOW FOR THE (MONTH OF FEBRUARY 2019
SAVO18
NIA
NO QUALIFYING FLOW FOR THE MONTH OF FEBRUARY 2019
SAV020
N/A
NO QUALIFYING FLOW FOR THEMONTH OF FEBRUARY 2019
Permit Number NCS000546 Form SWU-247, lust revised 2/2/2012
Pane I of 3

Outfall
Date
71900
C0530
00556
Mercury,
Solids, Total
Oil & Grease
No.
Sample
Collected
Total, Method
Suspended -
1631 F
Concentration
mo/ddh,r
n L
m L
m
SW00I
NIA
NO QUALIFYING FLOW FOR THE MONTH
OF FEBRUARY 2019
SWO07
NIA
NO QUALIFYING FLOW FOR THE MONTH
OF FEBRUARY 2019
SW009
NIA
NO QUALIFYING FLOW FOR THE NIONTH
OF FEBRUARY 2019
SW011)
NIA
NO QUALIFYING FLOW FOR THE &MONTH
OF FEBRUARY 2019
SWO16
NIA
NO QUALIFYING FLOW FOR THE MONTH
OF FEBRUARY 2019
SW015
NIA
NO QUALIFYING FLOW FOR THE ?MONTH
OF FEBRUARY 2019
SW020
NIA
NO QUALIFYING FLOW FOR THE N'IONTH
OF FEBRUARY 2019
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
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total
Oil & Grease
Non -polar
Total
pH
New Motor
Collected
(if applicable)
Rainfall
(if appl.)
O&G/TPH
Suspended
Oil Usage
(Method 1664
Solids
SGT-HEM), if
appl.
molddl r
N'IG
inches
m
m
unit
gaurno
NOTE: February 2019 samples not collected clue to unqualified rain events or adverse weather conditions.
Permit Number NCS000546 Form SWU-247. last revised 2!?/2012
Puce 2 of 3

STORM EVENT CHARACTERISTICS: Nlail Original and one copy to:
Division of Water Quality
Date NA Attn: Central Files
Total Event Precipitation (inches): NA 1617 Mail Service Center
Event Duration (hours): (only if applicable — sec permit.) Ralck,h, North Carolina 27699-1617
(if more than one storm event was sampled)
Dale
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"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 Pe}mittee)
( Date
Permit Number NCS000546 Form SWU-247. last revised 21212012
Page 3 of 3