NC0038377_Wastewater Permit App Submittal #9_20170509

DUKE
ENERGY.
PROGRESS
Sergei Chernikov, PhD. May 9, 2017
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
File Point: 12520 B-1
Subject: NPDES Wastewater Permit Application Submittal #9
Updated Monofill Leachate Data
Permit No.: NCO038377
Person County
Dear Dr. Chernikov:
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
RECEIVEDINCDEQIDWR
MAY 1 i 2011
Water Q S�s�'ton
Permitting
In follow-up to our meeting of 4/17/17 and meeting notes subsequently published on 4/26/17, Duke
Energy Progress, LLC (Duke Energy) submits herewith supplemental monofill leachate analytical data in
support of the NPDES renewal application submitted in September 2011 for the subject facility. This
update is in addition to the previous updates and requests submitted dated October 15, 2014, October
21, 2014, December 22, 2014, February 4, 2015, July 22, 2015, July 5, 2016, and August 15, 2016.
Leachate flow for 2016 was 11 million gallons. Please include this supplemental information and the
information in the previous submittals in your review.
If you have any questions, please contact Lori Tollie at [phone] or at lori.tollie@dukeenergy.
com.
"l 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. l am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Sincerely,
Tom Copolo — anager
Mayo Steam Electric Station

TABLE 7
LEACHATE FIELD AND ANALYTICAL RESULTS
MAYO CCP LANDFILL PHASE 1 - PERMIT NO. 7305
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, ROXBORO, NC
Parameter
SWS ID
Units
Certificate Code
Sample Location
RDL
SWSL
7305 L-1
Field pH
320
SU
5,591
7.9
-
NE
Specific Conductance
323
pU/cm
5,591
5,404
-
NE
Temperature
325
°C
5,591
21
-
NE
Arsenic
14
µg/L
248
28.3
1
10
Barium
15
µg/l_
248
208
5
100
Boron
428
µg/L
248
17,200
50
NE
Cadmium
34
µg/L
248
1.32
1
1
Chloride
455
µg/L
248
1,600,000
1,000
NE
Chromium
51
µg/L
248
111
5
10
Copper
54
µg/l_
248
< 5
5
10
Fluoride
312
µg/L
248
<2,000
100
2,000
Iron
340
µg/L
248
302
10
300
Lead
131
µg/l_
248
< 1
1
10
Manganese
342
µg/l_
248
10
5
50
Mercury
132
µg/L
248
< 0.05
0.05
0.2
Nickel
152
µg/L
248
34
5
50
Nitrate (as Nitrogen)
303
µg/L
248
4500
23
10,000
Selenium
183
µg/L
248
21.7
1
10.
Silver
184
µg/L
248
< 5
5
10
Sulfate
315
µg/L
248
510,000
2,000
250,000
Total Dissolved Solids
311
µg/L
248
3,500,000
25,000
NE
Zinc
213
µg/L
248
55
5
10
Prepared by: W]W Checked by: RKD
Notes:
1. = - Concentrations are equal to or greater than the SWSL.
2. SWS ID is the Solid Waste Section Identification Number.
3. RDL = laboratory reporting limit
4. SWSL = Solid Waste Section Limit. NCDEQ defines the SWSL as the lowest amount of analyte in a sample that can be quantitatively determined
with suitable precision and accuracy
5. SU = Standard Units
6. NE = not established
7. According to the Constituent Look -up webpage on the NCDEQ Division of Waste Management webpage, there is no SWSL for chloride associated
with CAS number 16887-08-6, which is the CAS reported by the laboratory for the analyses completed. Therefore, the SWSL listed is for the chloride
with CAS number SW301 as specified on the Constituent Look -up webpage.
S. Analytical results obtained from Electronic Data Deliverable (EDD) provided by Duke Energy on December 6, 2016.
9. pU/cm = micromhos per centimeter
10. SynTerra Corporation Laboratory Certificate Code Field #5591
11. Duke Energy Analytical Laboratory Certificate Code #248
P:\Duke Energy Progress. 1026\05. MAYO\17. 2016 Well Samping Monofill\NOV 2016 SOLID WASTE PERMIT REPORT\Tables\Table 7 - Leachate Field and Analytical
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