HomeMy WebLinkAboutNCS000578_Buck Data Submittal_20141217DUKE
ENERGY.
December 17, 2014
Mr. Bradley Bennett
State of North Carolina
Department of Environment and Natural Resources
Division of Energy, Mineral & Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, NC 27699-1612
Subject: Buck Steam Station
Stormwater Data Submittal
Dear Mr. Bennett:
Environmental Services
Duke Energy
526 South Church Street
Charlotte, NC 28202
Mailing Address:
Mail Code EC13Kt P.O. Box 1006
Charlotte, NC 28201-1006
Please find attached a summary of analytical data collected from stormwater outfalls at the Buck
Steam Station. Stormwater samples were collected from three outfalls during a rainfall event on
November 17, 2014. Outfall locations are indicated on the site stormwater plan drawing
previously submitted.
Please contact me at Mark.McGary@duke-energy.com or at 980-373-7898 if you have any
questions or need any additional information.
Sincerely,
Mark McGary, PE
Environmental Services
Attachment
r�r 18 2914
DcRRIAND OUAl-1TY
STOPUP WAlf R PEFMIT rINO
Buck Steam Station
Stormwater Monitoring Summary
November 2014
Stormwater samples were collected from three stormwater outfalls at Buck Steam Station during a rainfall
event on November 17, 2014 as follows:
Date
Outfalls Sampled
Rainfall Event Duration
Rainfall Amount
November 17, 2014
SW001, SW002 and SW003
1580 minutest
10.52 inches'
+This information was obtained from provisional USGS data (site 354057080362545).
Samples were collected directly into properly preserved bottles and shipped on ice to Duke Energy's
analytical laboratory in Huntersville, NC. Laboratory analyses were conducted by Duke Energy's
Huntersville analytical laboratory (NC Wastewater Certification #248) and Pace Analytical Laboratories (NC
Wastewater Certification # 12).
Analytical parameters for analysis were: TSS, TDS, Oil &Grease, Cl, SO4, F, COD, Al, As, B, Ba, Ca, Cd,
Cu, Cr, Fe, Mn, Mo, Mg, Ni, Pb, Sb, Se, TI, Zn, Hardness and Hg. Specific conductance, and pH were
measured in the field using calibrated instruments. Laboratory analytical methods used for each parameter
are provided in Appendix A.
Storage and preservation techniques of the samples after collection, and prior to analyses, were followed
according to Appendix B.
Analytical results are summarized in Appendix C.
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Parameter
Units
SW001
Sample Locations
SW002
SW003
COD
mg/L
23
< 20
<
20
Cl - Chloride
mg/L
0.77
1.1
0.54
Fluoride
mg/L
<
0.1
0.11
0.2
504 -Sulfate
mg/L
5.8
9.6
7.7
Oil&Grease
mg/L
<
5
< 5
<
5
Hg - Mercury
µg/L
<
0.05
< 0.05
<
0.05
AI -Aluminum
mg/L
0.506
0.336
0.246
Ba - Barium
mg/L
0.011
0.017
0.007
B - Boron
mg/L
<
0.05
< 0.05
<
0.05
Ca -Calcium
mg/L
5.43
5.99
4
Hardness
mg/L (CaCO3)
17.2
18.6
11.8
Fe - Iron
mg/L
1.28
0.758
0.243
Mg - Magnesium
mg/L
0.873
0.892
0.446
Mn - Manganese
mg/L
0.054
0.074
0.029
Zn - Zinc
mg/L
0.482
1.09
0.308
Sb - Antimony
µg/L
<
1
< 1
<
1
As - Arsenic
kg/L
2.15
1.13
<
1
Cd - Cadmium
µg/L
<
1
1.03
<
1
Cr - Chromium
µg/L
<
1
< 1
<
1
Cu - Copper
pg/L
11.9
34
7.65
Pb - Lead
µg/L
3.49
6.94
3.3
Mo - Molybdenum
kg/L
3.87
4.49
14.1
Ni - Nickel
µg/L
<
1
1.82
1.47
Se - Selenium
µg/L
1.31
5.7
20.7
TI - Thallium
µg/L
<
0.2
< 0.2
<
0.2
PH
Sl Units
6.03
6.32
6.58
Specific conductance*
µS/cm
-
-
-
TDS- Total Diss. Solids
mg/L
46
42
<
25
Temperature
T
15.1
13.7
12.5
TSS - Total Suspended Solids
mg/L
11
10
<
5
*Specific Conductance values were not measured for these samples