Marshall Steam Station (3)

MCDGNR
North•Carollna Department.of Environment and Natura
Division of Water Quality
Beverly Eaves Perdue Coleen H Sullins
Governor Director
September 20, 2010
Mr. Allen Stowe, Water Management
Duke Energy
Post Office Box 1,006/EC13K
Charlotte, North Carolina 28201-1006
FILE
Resources
Subject Sampling Results
Marshall Steam Station
NPDES Permit No NC0004987
Catawba County, N.C.
Dear Mr. Stowe:
Dee Freeman
Secretary
Enclosed please find the results from the laboratory analyses on the samples collected at different
stages of the FGD treatment system at the Marshall Steam Station. The samples analyzed were all grab
samples collected during the Compliance Sampling -Inspection performed on June 7, 2010 by Ms. Donna
Hood'and Mr. Wes.Bell of the Mooresvtlle`Regional Offfce,and Ms. Autumn Romanski oftthe Raleigh
Regional Office.
The Outfall 002,effluent results were compliant with the,perm►tted effluent limits. Please be
aware that the,effluent total dissolved solids value (896 mg/L) exceeded the water -quality stream standard
for waters designated as a water supply (500 mg/L) Although no in -stream samples were collected, the r
results of all samples collected during`this,inspectionwill be forwarded to the,Division's NPDES
Permitting Unit for their review. Please attach this letter and the analytical results sheets to the inspection
report dated July 8, 2010 to complete your records on the inspection
Should you,have questions concerning this report, please,do not hesitate to,contact-,Mr Bell at
(704) 6634699.
Sincerely,
Robert B Krebs
Regional Supervisor
Surface Water Protection
Enclosure.
Analytical Results
cc: Catawba County Health Department
Mooreswlie'Regional Office
Location 610 East Center -Ave,, Sude,301,Mooresvdle, NC 28115 One,
Phone [phone] Fax ;(704) 663=6040 CCustomer Service 1-877-623.6748 NorthCarolina
Internet hdpllportal ncdenr oiglweb/wq NatulvIly
AnIqual Opportumiy'1 Affirmative"Acton Employer — 50%'Recycled!10% Post Consumer paper

ANALYTICAL RESULTS SHEET
Name of Facility
Duke Energy Marshall Steam Station
Grab Z Composite ❑
Sample Date(s) June 7, 20110
NPDES Permit No.. 'N00004987
Sample Location FGD Influent Prior to Clarifier
County, Catawba
Biochemical Oxygen Demand
BODS
<2 mg/L
Sodium (Na)
56 mg/L
'Total Dissolved Solids
24.700 mg/L
Nickel (Ni)
400 µg/L
Chemical Oxygen Demand
150 mg/L
Lead (Pb)
260 µg/L
Chloride
7600 mg/L
Antimony (Sb)
1000 µg/L*
Fluoride
<100 0 t g/L*
Selenium (Se)
4600 µg/L
Sulfate
1,200 mg/L
Tin (Sn)
1,000 µg/L*
Silver (Ag)
100 µg/L*
Thallium (TI)
1000 µg/L*
Aluminum (Al)
WNW µg/l_
Titanium (Ti)
3600 µg/l_
Arsenic (As)
230 µg/l_
Vanadium (V)
440 µg/L
Boron (B)
160000 µg/l_
Zinc (Zn)
970 µg/L
Banum'(Ba)
1700 µg/l_
Total Phosphorus
3 4 mg/L
Beryllium (Be)
12 µg/l_
Ammonia -nitrogen (NH3-N)
6.7 mg/L
Calcium (Ca)
4400 mg/L
Total Kjeldahl Nitrogen (TKN)
13 mg/L
Cadmium (Cd)
11 µg/,L
Nitrate/Nitrite-nitrogen (NO2 +-NO,)
28 mg/L
Cobalt,(Co)
-1:50 µg/l_
Total Nitrogen
41 mg/L
Chromium (Cr)
320 µg/l_
Copper (Cu)
330 µg/l_
Note * indicates elevated PQL due to matrix
interference and/or sam le dilution
Iron (Fe)
190000 µg/L
T.
Mercury (Hg)
4 5 µg/L
No Field Analyses were obtained
Potassium (K)
80 mg/L
Lithium (Li)
360 µg/L
Magnesium (Mg)
1400 mg/L
Manganese (Mn)
10000 µg/L
Molybdenum (Mo)
1000 µg/L*

ANALYTICAL RESULTS SHEET
Name of Facility
Duke Energy Marshall Steam Station
Grab ® Composite '❑
Sample Date(s)- June 7, 2010
NPDE'S Permit No.- N00004987
Sample Location FGD' Clarifier Effluent
County Catawba
Biochemical Oxygen Demand
BODS
<2 mg/L
Sodium (Na)
54 mg/L
Tota[Dissolved Solids
171'00 mg/,L-
Nickel (Ni)
1'80,µg/L
Chemical Oxygen Demand
120 mg/L
Lead (Pb)
<10 µg/l_
Chloride
5500 mg/L
Antimony (Sb)
200 q/L*
Fluoride
<100 0 mg/L*
Selenium (Se)
390 µg/l_
Sulfate
1100 mg/L
Tin (Sri)
200 q/L*
Silver (Ag)
50 µg/,L*
Thallium (TI)
200 µg/L*
Aluminum (AI)
380 µg/L-
Titanium (Ti)
100 µg/L*
Arsenic (As)
10 4g/L*
Vanadium (V)
<25 µg/l_
Boron (B)
170000 µg/L,
Zinc (Zn) -
51 µg/l_
Banum (Ba)
1610 µg/l_
Total`Phosphorus
0 02 mg/,L
Beryllium (Be)
<5 q/L
Ammonia -nitrogen (NH3-N)
6 6 mg/L
Calcium (Ca)
3100 mg/L
Total Kjeldahl Nitrogen (TKN)
10 mg/L
Cadmium (Cd)
7 8 µg/l_
Nitrate/Nitrite-nitrogen (NO2+ NO3)
33 mg/L
Cobalt (Co)
57 µg/L
Total Nitrogen
43 mg/L
Chromium (Cr)
<10 µg/L
Copper (Cu)
20 µg/L*
Note * 'indicates elevated PQL due to matrix,
interference and/or sample dilution
Iron (Fe)
410 µg/L
Mercury (Hg)
4 6 µg/L
FIELD ANALYSES
Potassium (K)
25 mg/L
Temperature
39 5°C
Lithium (Li)
170 µg/L
pH
6 5 SU
Magnesium (Mg)
1300 mg/,L
'Dissolved Oxygen
3 67 mg/L,
Manganese (Mn)
9100 q/L
% Saturation
54%
Molybdenum (Mo)
200 µg/L*'
Conductivity
20900
umhos/cm

ANALYTICAL RESULTS SHEET
Name of Facility Grab ® Composite' 0
Duke Energy Marshall Steam Station
Sample Date(s). June 7, 2010 NPDES.Permit.No., NC0004987
Sample Location FGD .EQ Basin Effluent
Biochemical Oxygen Demand <2, m /L
i1Qnn mg/,L
Total Dissolved Solids
6970 mg/L
Chemical Oxygen Demand
33 mg/L,
Total Organic Carbon
2 7 mg/L
Chloride
270.0 mg/,L
Fluoride
<40 0 mg/L*
Sulfate
580 mg/L
Silver (Ag)
50 µg/L*
Aluminum (Al)
240 µg/l-
Arsenic (As)
10 µg/L*
Boron (B)
68000 µg/L
Banum, (Ba)
220 µg/L
Beryllium (Be)
<5,µg/L
Calcium (Ca)
1100 mg/L
Cadmium (Cd)
2 6 µg/L
Cobalt (Co)
<50 µg/L
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Mercury (Hg)
Potassium (K)
Lithium (Li)
Magnesium (Mg)
'Manganese (Mn)
<10 µg/L
20 µg/L*
220 µg/L
<0 20 µg/L
11 mg/L
65 µg/l-
480
g/L480 mg/L
County Catawba
Molybdenum (Mo)
200 µg/L;
Sodium (Na)
22 mg/L
Nickel (Ni)
71 µg/L
Lead (Pb)
<10 µg/L
Antimony (Sb)
200 µg/L'*
Selenium (Se)
140 µg/L,
Tin (Sn)
200 µg/L*
Thallium (TI)
200 µg"/L*
Titanium (Ti)
<10 µg/L
Vanadium (V)
<25 µg/L
Zinc (Zn)
18 µg/L
Total Phosphorus
0 02 mg/L
Ammonia -nitrogen (NH37N)
2 8 mg/L
Total Kjeldahl Nitrogen (TKN)
4 mg/L
Nitrate/Nitrite-nitrogen (NO2 + NO3)
14 mg/L
Total Nitrogen
18 mg/L
Note * indicates elevated PQL due to matrix
interference, and/or sample dilution
FIELD ANALYSES
Temperature I 28 4°C
pH 6 76 SU
Dissolved Oxygen 5 09 mg/L
% Saturation 77%
3500 µg/L I Conductivity
umhos/cm

ANALYTICAL RESULTS SHEET
Name of'Facility.
Duke Ener Marshall Steam Station
Grab ® Composite 0
Sample Date(s) June 7, 2010
NPDES Permit No.- NC0004987
Sample Location Outfall 004
County Catawba
Biochemical Oxygen Demand
BODS
2 9 mg/L
Molybdenum (Mo)
200 µg/L*
-
Total Organic Carbon,
76 mg/L
Sodium (Na)
21 mg/L,
Total Dissolved Solids
8070 mg/L
Nickel (Ni)
69 µg/l_
Chemical Oxygen Demand
34 mg/L
Lead (Pb)
<10 µg/l_
Chloride
2500 mg/L
Antimony (Sb)
200 µg/L*
Fluoride
<40 0 mg/L*
Selenium (Se)
94 µg/l_
Sulfate
580 mg/L
Tin (Sri)
200 µg/L*
Silver (Ag)
50 µg/L*
Thallium (TI)
200 µg/l_
Aluminum (Al)
52 µg/L
Titanium (Ti)
<10 µg/l_
Arsenic (As)
10 µg/L*_
Vanadium (V)
<25 µg/L
Boron (B)
70000 µg/l_
Zinc (Zn)
12 µg/L
Barium (Ba)
190 µg/l_
Total'Phosphorus
0-03 mg/L
Beryllium (Be)
<5 µg/l_
Ammonia -nitrogen (KH3-N)
0 65 mg/L
Calcium (Ca)
1,000 mg/L
Total kjeldahl Nitrogen, (TKN)
2 3 mg/L
'Cadmium (Cd)
1 6 µg/l_
Nitrate/Nitrite-nitrogen (NO2+ NO3)
11 mg/L
Cobalt'(Co)
<50 µg/L
Total Nitrogen
13,3 mg/L
Chromium Cr
( )
<10 µg/L
Note * indicates elevated PQL due to matrix
interference and/or sample dilution
Copper (Cu)
20 µg/L*
'FIELD ANALYSES
Iron (Fe)
220 µg/l_
Flow
906.gpm
Mercury (Hg)
4 5 µg/L
Temperature
27 9°C
Potassium (K)
11 mg/L
pH
6 12 SU
Lithium (Li),
69 µg/L
Dissolved Oxygen
4 78 mg/L
Magnesium (Mg)
460 mg/L
% Saturation
687%
Manganese, (Mn)
4000 µg/L
Conductivity
8200
umhos/cm

ANALYTICAL RESULTS SHEET
Name of Facility
Duke Energy Marshall Steam Station,_
Grab Composite ❑
Sample'Date(s)* June 7, 2010
NPDES Permit No. NC0004987
Sample Location Outfall 002,(Final Effluent)
County Catawba
Biochemical Oxygen Demand
BODS
<2 mg/L
Sodium (Na)
8 1 mg/L
Total Suspended Solids
<6-2 mg/L
Nickel (Ni)
20 µg/L
Total Organic Carbon
3 0 mg/L
Lead (Pb)
<10 µg/L
Total Dissolved Solids
896 mg/L
Antimony (Sb)
200 µg/L*
Chemical Oxygen Demand
<20 mg/L
Selenium (Se)
50 µg/L*
Chloride
220 mg/L
Tin (Sri)
200 µg/L*
Fluoride
<4 0 mg/L*
Thallium (TI)
200 µg/L*
Sulfate
110 mg/L
Vanadium (V)
<25 µg/L
Silver (Ag)
50 µg/L*,
Zinc (Zn)
22 µg/L
Aluminum (AI)
370 µg/L
Total Phosphorus
<0 02 mg/L.
Arsenic (As)
10 µg/L*
Ammonia -nitrogen (NH3-N)
10 mg/L
Boron (B)
5500 µg/L
Total Kjeldahl Nitrogen (TKN)
3 5 mg/L
Barium (Ba)
98 µg/l-
Nitrate/Nitrite-nitrogen (NO2+ NO3)
1 1 mg/L
Beryllium'(Be)
<5 µg/l-
Total Nitrogen
4 6 mg/L
Calcium (Ca)
110 mg/L
Cadmium (Cd)
1-�0, /L
< µg
Note * indicates elevated PQL due to matrix
interference and/or sample dilution
Cobalt (Co)
<50,µg/L
Chromium (Cr)
<10 µg/L
Copper (Cu)
20 µg/L-*
FIELD ANALYSES
Iron (Fe)
120,µg/L
pH
6 14 SU
Mercury (Hg)
<0 20 µg/L
Dissolved Oxygen
5 22 mg/L
Lithium (Li)
69 µg/L
Temperature
28 6°C`
Magnesium (Mg)46
mg/L
% Saturation
776%
Manganese (Mn)
820 µg/L
Conductivity
1,100
umhos/em