NC0004979_Results from WQ Sampling Area_20150825 (2)

DUKEEHS CCP Environmental Programs
ENERGY® Duke Energy
CAROLINAS, 526 South Church Street
Charlotte,NC 28202
Mailing Address:
EC13K/P.O.Box 1006
Charlotte,NC 28201-1006
28 August 2015
Mr. Sergei Chernikov RECEIVEDIDENRIDWR
North Carolina Division of Water Resources
1617 Mail Service Center SEP - 1 2015
Raleigh, NC 27699-1617
Water Quality
Permitting Sectior
Subject: Submittal of Results from Water Quality Sampling of Area of Wetness (AOW) at Allen Steam
Station
Dear Mr. Chernikov,
Duke Energy personnel collected a water quality sample of a new AOW at Allen Steam Station on 22
July 2015, and the laboratory report containing the results of the water quality sampling was received on
30 July 2015. Enclosed with this letter are the results of the water quality sampling.
The analysis seems to indicate that the water is influenced by the ash basin.The water of this AOW
originates and pools at the toe of the eastern dike of the ash basin and eventually either evaporates
or percolates into the ground of the ditch at the toe of the eastern dike.The ditch does not provide
enough positive drainage to convey the water to an outlet to the lake.
In accordance with Duke procedures,this AOW will be monitored weekly for changes.
Should you have any questions regarding this submittal or require addition information, please contact
Ross Hartfield at 980-373-6583 or at [e-mail].
Sincerel
'oss Hartfield
Environmental Specialist II
Enclosure
cc: Richard Baker,Director,EHS CCP Environmental Programs
Michael Parker,Mooresville Regional Office, NCDENR

Sample Description Station Collected Date Digestion Component Method < or > ResultUnits MDL RDL
S-10 AOW ALLEN 07/22/15 Total Aluminum(Al) EPA 200.7 0.219 mg/L 0.002 0.005
5-10 AOW ALLEN 07/22/15 Total Barium(Ba) EPA 200.7 0.064 mg/L 0.0001 0.005
5-10 AOW ALLEN 07/22/15 Total Boron (B) EPA 200.7 0.768 mg/L 0.0033 0.05
5-10 AOW ALLEN 07/22/15 Total Iron(Fe) EPA 200.7 0.9 mg/L 0.0013 0.01
5-10 AOW ALLEN 07/22/15 Total Manganese(Mn) EPA 200.7 0.31 mg/L 0.0002 0.005
5-10 AOW ALLEN 07/22/15 Total Zinc(Zn) EPA 200.7 0.007 mg/L 0.0026 0.005
S-10 AOW ALLEN 07/22/15 Total Antimony(Sb) EPA 200.8 < 1 ug/L 0.106 1
S-10 AOW ALLEN 07/22/15 Total Arsenic(As) EPA 200.8 < 1 ug/L 0.078 1
S-10 AOW ALLEN 07/22/15 Total Cadmium(Cd) EPA 200.8 < 1 ug/L 0.101 1
S-10 AOW ALLEN 07/22/15 Total Chromium(Cr) EPA 200.8 < 1 ug/L 0.061 1
S-10 AOW ALLEN 07/22/15 Total Copper(Cu) EPA 200.8 1.38 ug/L 0.11 1
5-10 AOW ALLEN 07/22/15 Total Lead(Pb) EPA 200.8 < 1 ug/L 0.065 1
S-10 AOW ALLEN 07/22/15 Total Molybdenum(Mo) EPA 200.8 < 1 ug/L 0.066 1
S-10 AOW ALLEN 07/22/15 Total Nickel (Ni) EPA 200.8 6.72 ug/L 0.194 1
S-10 AOW ALLEN 07/22/15 Total Selenium(Se) EPA 200.8 < 1 ug/L 0.092 1
S-10 AOW ALLEN 07/22/15 Total Thallium(TI) Low Level EPA 200.8 < 0.2 ug/L 0.134 0.2
S-10 AOW ALLEN 07/22/15 Chloride - EPA 300.0 9.3 mg/L 0.022 0.1
S-10 AOW ALLEN 07/22/15 Fluoride EPA 300.0 0.12 mg/L 0.017 0.1
5-10 AOW ALLEN 07/22/15 Sulfate EPA 300.0 77 mg/L 0.18 10
5-10 AOW ALLEN 07/22/15 Nitrite+Nitrate(Colorimetric) EPA 353.2 0.394 mg-N/L 0.004 0.01
S-10 AOW ALLEN 07/22/15 pH Field Work 7.29 SI Units 0 0
S-10 AOW ALLEN 07/22/15 Specific Conductance Field Work 411 uS/cm 0 0
S-10 AOW ALLEN 07/22/15 Temperature Field Work 24.9 °C 0 0
S-10 AOW ALLEN 07/22/15 TDS SM2540C 240 mg/L 16.75 25
S-10 AOW ALLEN 07/22/15 TSS SM2540D 10 mg/L 3.35 5
AOWS-10 ALLEN 7/22/2015 Mercury(CVAFS) 1631E 0.685 ng/L 0.5 0.5
AOWField Blank ALLEN 7/22/2015 Mercury(CVAFS) 1631E < 0.5 ng/L 0.5 0.5