NC0004987_Submittal of Notification 2015_20150814

(' DUKE EHS CCP Environmental Programs
le ENERGY® Duke Energy
CAROLINAS 526 South Church Street
Charlotte,NC 28202
Mailing Address:
EC13K/P.O. Box 1006
Charlotte,NC 28201-1006
August 14, 2015
Mr. Sergei Chernikov
North Carolina Division of Water Resources
1617 Mail Service Center RECEIVEDIDENROWR
Raleigh, NC 27699-1617
AUG 192015
Subject: Duke Energy Carolinas, Inc. Water Q
ton
Marshall Steam Station Permitting
Submittal of Notification of Potential New Seep
Catawba County
Dear Mr. Chernikov,
Duke Energy personnel observed an area of wetness at Marshall Steam Station on 29 June 2015,collected
a water quality sample on 10 July 2015,and notified the North Carolina Division of Water Resources of
such activities via letter dated 27 July 2015. Enclosed with this letter are the results of the water quality
sampling.
The water appears to be seepage from the ash basin. However,the water only pools and eventually
either evaporates or percolates into the ground. The seep has no point source discharge into Lake
Norman.
In accordance with Duke Procedures, this seep will be monitored weekly for changes as part of our
weekly inspections.
If you have any questions,please contact Mr. Brad Loveland at(704) 609-5637.
Sincerely,
1.41.
:ra. ove and CCP Permitting and Compliance
Duke Energy, Inc.
Enclosure
cc: Richard Baker, Director, EHS CCP Environmental Programs
Brad Loveland,Environmental Specialist, CCP Permitting and Compliance
Michael Parker, Mooresville Regional Office NCDENR

Sample Description Station Collected Date Component Method CAS Number < or > Result Units MDL WI
Suspect Seep MARSHALL 07/10/15 Oil and Grease EPA 1664B Oil/Grease < 5 mg/L 1.056 5
Suspect Seep MARSHALL 07/10/15 Aluminum(Al) EPA 200.7 7429-90-5 0.413 mg/L 0.002 0.005
Suspect Seep MARSHALL 07/10/15 Barium(Ba) EPA 200.7 7440-39-3 0.107 mg/L 0.0001 0.005
Suspect Seep MARSHALL 07/10/15 Boron(B) EPA 200.7 7440-42-8 6.11 mg/L 0.0033 0.05
Suspect Seep MARSHALL 07/10/15 Calcium(Ca) EPA 200.7 7440-70-2 107 mg/L 0.035 0.1
Suspect Seep MARSHALL 07/10/15 Iron(Fe) EPA 200.7 7439-89-6 0.249 mg/L 0.0013 0.01
Suspect Seep MARSHALL 07/10/15 Magnesium(Mg) EPA 200.7 7439-95-4 45.7 mg/L 0.044 0.05
Suspect Seep MARSHALL 07/10/15 Manganese(Mn) EPA 200.7 7439-96-5 8.75 mg/L 0.0002 0.005
Suspect Seep MARSHALL 07/10/15 Phosphorus(P) EPA 200.7 7723-14-0 0.109 mg/L 0.0033 0.02
Suspect Seep MARSHALL 07/10/15 Total Hardness(Ca and Mg) EPA 200.7 0 455 /L(CaCi 0.1273 0.19
Suspect Seep MARSHALL 07/10/15 Zinc(Zn) EPA 200.7 7440-66-6 0.016 mg/L 0.0026 0.005
Suspect Seep MARSHALL 07/10/15 Antimony(Sb) EPA 200.8 7440-36-0 < 1 ug/L 0.106 1
Suspect Seep MARSHALL 07/10/15 Arsenic(As) EPA 200.8 7440-38-2 1.74 ug/L 0.078 1
Suspect Seep MARSHALL 07/10/15 Cadmium(Cd) EPA 200.8 7440-43-9 < 1 ug/L 0.101 1
Suspect Seep MARSHALL 07/10/15 Chromium(Cr) EPA 200.8 7440-47-3 < 1 ug/L 0.061 1
Suspect Seep MARSHALL 07/10/15 Copper(Cu) EPA 200.8 7440-50-8 < 1 ug/L 0.11 1
Suspect Seep MARSHALL 07/10/15 Lead(Pb) EPA 200.8 7439-92-1 < 1 ug/L 0.065 1
Suspect Seep MARSHALL 07/10/15 Molybdenum(Mo) EPA 200.8 7439-98-7 < 1 ug/L 0.066 1
Suspect Seep MARSHALL 07/10/15 Nickel(Ni) EPA 200.8 7440-02-0 1.43 ug/L 0.194 1
Suspect Seep MARSHALL 07/10/15 Selenium(Se) EPA 200.8 7782-49-2 < 1 ug/L 0.092 1
Suspect Seep MARSHALL 07/10/15 Thallium(TI)Low Level EPA 200.8 7440-28-0 0.59 ug/L 0.134 0.2
Suspect Seep MARSHALL 07/10/15 Vanadium(V) EPA 200.8 7440-62-2 < 1 ug/L 0.053 1
Suspect Seep MARSHALL 07/10/15 Bromide EPA 300.0 7726-95-6 22 mg/L 0.12 1
Suspect Seep MARSHALL 07/10/15 Chloride EPA 300.0 16887-00-6 230 mg/L 1.1 5
Suspect Seep MARSHALL 07/10/15 Fluoride EPA 300.0 16984-48-8 0.19 mg/L 0.017 0.1
Suspect Seep MARSHALL 07/10/15 Sulfate EPA 300.0 14808-79-8 140 mg/L 0.9 5
Suspect Seep MARSHALL 07/10/15 I Kjeldahl Nitrogen(Colorimt EPA 351.2 0 0.43 mg-N/L 0.03 0.15
Suspect Seep MARSHALL 07/10/15 litrite+Nitrate(Colorimetric EPA 353.2 14797-65-0 0.096 mg-N/L 0.004 0.01
Suspect Seep MARSHALL 07/10/15 pH Field Work pH 5.57 SI Units 0 0
Suspect Seep MARSHALL 07/10/15 Specific Conductance Field Work 0 895 uS/cm 0 0
Suspect Seep MARSHALL 07/10/15 Temperature Field Work 0 20.5 'C 0 0
Suspect Seep MARSHALL 07/10/15 COD HACH 8000 SW317 < 20 mg/L 3.78 20
Suspect Seep MARSHALL 07/10/15 TDS SM2540C SW311 890 mg/L 16.75 25
Suspect Seep MARSHALL 07/10/15 TSS SM2540D TSS 31 mg/L 3.35 5
Suspect Seep MARSHALL 7/10/2015 Mercury(CVAFS) 1631E 7439-97-6 36 ng/L 1 1
FIELD BLANK MARSHALL 7/10/2015 Mercury(CVAFS) 1631E 7439-97-6 < 0.5 ng/L 0.5 0.5
Trip blank MARSHALL 1/0/1900 Mercury(CVAFS) 1631E 7439-97-6 < 0.5 ng/L 0.5 0.5