NCG120101_COMPLETE FILE - HISTORICAL_20180913

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO. I /v C.,� I a () 10 I
DOC TYPE + I HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE ❑ O'U 0
YYYYMMDD

DUKE
ENERGY.
File: Mayol2520-R
Ms. Bethany Georgoulias
North Carolina Division of Environmental Quality
1628 Mail Service Center
Raleigh, NC 27699-1628
Subject: Duke Energy Progress, LLC.
Mayo Electric Generating Plant
NPDES General Permit Renewal Guidance
NCG 120101
Dear Ms. Georgoulias:
Duke linergy
2500 Fairi'ax RPai
Greensboro, NC 27407
RECEIVED
SEP 13 2010
D1�-11R-LAND QJALITY
STORMWATER PERMITTING
As recently discussed, Duke Energy requests guidance and clarification on the renewal of the
NCG120101 general stormwater permit for the Mayo Steam Plant Monofill. The initial certificate of
coverage was issued to Duke Energy on January 6, 2014. Coverage under this general permit was issued
with amended conditions requiring additional sampling. Please advise if the renewal of the general permit
will continue to require this augmented sampling schedule.
The NCG 120101 has been problematic with the requirement to monitor fecal coliform due to the
abundant wildlife around the monofill. Duke Energy sought and received tier relief from monthly
monitoring of fecal coliform from DEQ in December of 2017. Unlike the sanitary landfills the
NCG12000 permit was developed for, the Mayo Monofill receives only coal combustion residuals with
wildlife being the only possible source of fecal contamination.
Duke Energy plans to request a modification of NPDES Industrial Storrnwater Permit NCS000580 in the
near future to include the three stormwater outfalls at the Mayo Monofill currently covered by pen -nit
NCG120101. The industrial activity at the monofill, transport of materials, is similar in nature to the
activity at the Station's stormwater outfall 010.
As you requested, included with this correspondence is all stormwater sampling data gathered under
permit NCG 120101 to date from the Mayo Monofill for your review. Should you have any questions
Please contact me at Lori.Tollie ngduke-ener;yv_.com or at 1-336-854-4916.
Sincerely,
Lori Tollie

r_.

CDC NCGI20101
Facilty Name Mayo Steam Plant Mono811
Discharge to Bawes Branch
Units
Benchmarks
Units
Benchmarks-
Outfall
No.
Date Colle"ed
24 hour
rainfall
COD
TSS
As
Se
0
pH
Conductivity
Mn
Ti
Fecal Coliform
Total
Chlorides
Total
Fluoride
Tota!
Sulfate
Total
Hardness
inches
mg/L
mg/L
mg/L
mg/1
mg/t
S/m
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
120 mg/L
-
100 mg/L
6.0 to 9.0
Mayo Lab/Pace Lab
10t1D counts
per 100 mL
1
12/16/2014
0.12
8
3.1
c0,0005
c0.0005
c0.025
6.92
0.00628
<6.0005
41
1.3
<0.25
2.6
15A
2
12/29/70I4
0.47
310
149
0.0011
0.0D055
c0.025
7.38
0.00723
<0.0005
15,8
9.5
0,33
4.4
37.9
3
1 1I/17/2014
0.67
39
445
0.0021
0,0D15
<0.025
7.55
0-07707
1 <0.0005
120
26.9
0.51
18.5
103
6/3/2015
3.3
230
75.9
0.W16
0,OW44
0,0364
7.33
0.01031
0.077
<0.00005
3.1
6/3/2015
3.3
230
27.6
0 W29
0,OW38
0.084
6.97
0.006148
0.0617
<0.00005
3,1
6/3/2015
3.3
300
62.5
0.0009
0.00029
D.03357.94
0.009331
0.0348
<0.00005
152
k
10/28/201S
1.3
<12.5
49
0-00083
000029
<0.0250
8.12
0,D07384/0,00836
54.7
10/28/2015
1.3
19.0
12.1
0.OW41
0.00017
0.0255
693
0.007811/0,00838
69.8
lOY2812015
1.3
15.0
7
0.D038
0.D0044
0.112
7,95
C.020710/0,02400
38.2
5/17/2016
0.90
27.0
15.5
0.0025
0.00094
0.396
6.49
0.09866
2420
5/17/2016
0.90
32
13
0.00066
c0.00031
❑.0304
6.62
0.00269
2 220
3
5/17/2015
0.90
1 19
441
0.0042
O.DDOS6
0.071
6.66
0,00361
2420
1
121161201G
0.21
13
7.7
0.0005
c0.00031
0.674
6.96
0.11444
89
2
12116/2016
0.71
28
12.4
0,0007
c000031
0.029
7.34
0.007
241
3
12/16/2on
0.71
43
44.8
0,0072
0.00046
0.186
B4O9
0A168
437
1
6/19/2017
0.43
15
12.5
c0.004
c0.031
<0.056
7.13
0.9098
<0.0015
212
3.5
0.069
2.1
32.3
2
6/20/2017
1.53
21
42.5
<0.004
c0.031
c0.056
7.29
0.00702
<0.0015
41500
0.98
0.052
3.7
24.9
3
6/19/2017
0.43
52
24.5
0.0054
<0.031
c0.056
7.76
0.0156
0.0022
12000
5.9
COSS
14.2
44.7
1
11/9/2017
0.95
c12.5
23.9
0.00075
0.00084
1 0,0363
7.41
1 0.00491
S20
2
11/9/2027
1 0.95
25
3.9
0655
<O.OW31
0,0333
7.38
0.00063
3800
3
11/9/2017
0.95
18
10.7
0.D0071
00493
SAS
0.00994
6000
1
4/24/2018
1.02
14
13.6
jul.0025
0007
0.9W21
0, 261
6.96
C0151
4/24/2018
1.02
31
4.1
0005
<0D0017
0.02934/24/2018
1.07210049
0.90026
Q146
8.12
0.0116
933
Outfall
Nq,
Date Collected
24 hour
rainfall
inches
Sb
Ba
Be
Cd
Cr
Cu
Pb
Hg
Mo
Ni
Ag
Zn
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/t
mg/L
mg/L
mg/1
mg/L
1
12/16/2014
0.12
<0 0005
0.0I31
c0.00005
c0.00005
0.0012
0.0014
<0,0005
c0.DD01
<0.0D05
<0.00062
<0.0005
0.0094
2
12/29/2014
047
<0.0005
0.0906
0.00026
<0.00005
0.016
0.0215
0.0024
<0.0001
c0.0005
0.01
<0.0D05
0-0156
3
1 11/17/2014
0.67
<OOWS
0.178
0.00074
<0.00005
00358
0.0401
0,0054
<00001
0.0014
0.6198
c0000S
0.0B17
1
6/19/2017
0.43
<070
0.0184
<0.001
<0.005
00094
<0.011
c0.009
<0.00007
0.016
<0.044
<0.D07
<0.24
2
6/20/2012
1.53
10.010
0.0211
c0.901
<0.005
0,0126
<0.011
c0.009
c0.WQ07
<0.011
<0.044
<0007
<0.24
3
6/19/2017
0.43
c0,010
0,0438
c0.001
c0.005
-0009
c0.011
<0.009
c0.00007
<0.011
<0.C44
<0.007
c0.24
RECEIVED
SEP 13 2018
DENR-LAND QUALITY
STORMWATER PERMITTING

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
February 20, 2018
Duke Energy
Attn: Tom Copolo
10660 Boston Road
Roxboro, NC 27574
SUBJECT: NPDES Stormwater Permit: Request for Regulatory Relief
Mayo Electric Generating Plant -Mayo Steam Plant Monofill
General Permit No: NCG120000; COC No:tN_CG=1'201.01_-)
Person County
Mr. Copolo:
ROY COOPER
Governor
MICHAEL S, REGAN
secreliary
WILLIAM E. VINSON, JR,
Inie'inl Di,•ecior
In response to your request for Regulatory Relief, NCDENR-Land Quality Section staff reviewed
provided sample reports, site maps and discussed site characteristics with Lori Tollie the EHS
CCP permitting and compliance officer.
Monthly monitoring has been triggered by two consecutive exceedances of the Fecal Coliform
benchmarks at your facility. Please keep in mind that benchmark exceedances are NOT limit
violations or violations of permit conditions; however, you are obligated to follow the tiered
response actions outlined in your permit. Mayo Electric Generating Plant has been following the
tiered response actions and therefore is in compliance with the permit.
Based on your materials inventory and certification that industrial activities at Mayo Electric
Generating Plant - Mayo Steam Plant Monofill would not generate concentrated amounts of
Fecal Coliform into stormwater. For that reason, we are granting regulatory relief in the form of a
collapsed Tier 2 — Tier 3 response. Upon receipt of this letter, Mayo Electric Generating Plant
may resume the permit specified semiannual analytical monitoring for the remainder of your
current permit. Your current permit is set to expire on October 31, 2018. This decision only
applies to the Fecal Coliform benchmarks. A benchmark exceedance of any other parameter
listed in your permit will trigger tiered response actions as described in the general permit.
You must notify this office in writing, within five business days, if you become aware of any
significant source of Fecal Coliform at your facility that has the potential to be exposed to
stormwater. The relief granted in this letter is contingent upon the current industrial practices at
Mayo Electric Generating plant -Mayo Steam Plant Monofill. If industrial practices change and
Fecal Coliform does become a significant stormwater exposure risk then this office reserves the
right to withdraw this decision and reinstate the permit specified tiered response or other actions
State of North Carolina } Environmental Quality I Energy; ?Mineral, and Land Resources
Raleigh Regional Office 1 1628 Mail Service Center I Raleigh, NC 27609
919 791 4200

Duke Energy, ATTN: Tom Copolo
February 20, 2018
Page 2 of 2
that may be warranted by the new set of circumstances.
Please retain and append this letter to your Stormwater Pollution Prevention Plan (SPPP) or
permit. If you have any questions or comments concerning this letter, please contact Thad
Valentine or Diane Adams at [phone].
Sincerely,
William H. Denton, IV, PE
Regional Engineer-RRO
Enclosure
ec: Bethany Georgoulias, RCO

r
HCDENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Land Quality Section
Tracy E. Davis, PE, CPM
Director
January 6; 2014
William J. Thacker
Duke Energy Progress, Inc.
Mayo Steam Electric Plant
10660 Boston Road
Roxboro, NC 27574
Pat McCrory, Governor
John E. Skvarla, Ill, Secretary
Subject: General Permit No. NCG120000
Mayo Steam Plant Monofill
COC NCG120101
Pei son ounty
Dear Mr. Thacker:
In accordance with your application for a discharge permit received on September
23, 2013, we are forwarding herewith the subject certificate of coverage to discharge under
the subject state - NPDES general permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of'
Agreement between North Carolina and the US Envirohmental Protection Agency dated
October 15, 2007 (or as subsequently amended). -
Please take notice that this certificate of coverage is not transferable except after
notice to the Division of Energy, Mineral, and Land Resources. The Division may require
modification or revocation and reissuance of the certificate of coverage (COC).
Coverage under this General. Permit is granted with the condition that the permittee
performs additional samplirig`requirements as outlined in the amended conditions to the
COC. These include:
(1) In addition to the parameters in NCG120000, sample each SDO semi-annually for
conductivity, pH, arsenic (As), selenium (Se), and boron (B). No benchmarks
apply; however, concentrations above the levels in Footnote 5 should be noted on
the Stormwater Outfall Data Monitoring Reports (SDMRs) submitted to NC DENR.
(2) Sample each stormwater outfall (SDO) Qnce during the fir,Nt sampling event
between January 6 and June 30, 2014 and once in Ihe sampffingeveni between
January 1 and June 30, 2017 (Year 5 - Period 1 in the General Permit) for the
expanded list of parameters listed in Table 1 as amended on page 2 of the COC.
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] FAX; 919-733-2876
512 North Salisbury Street, Raleigh, North Carolina 27604 - Internet: htt� nll .or!al.ncdenr.or4lweb/Jr/land-quality
An Equal opportunity 1 Affiimative Action Employer — 50% Recycled 110% Post Consumer Paper

f
Mr. Nil,;:>-;, j.'rhacker
January 6, 2014
Page 2 of,'
These additional parameters include metals and other constituents which may be
present in Zero Liquid Discharge (ZLD) wastewater used to condition the coal combustion
residue (CCR) transported to the monofill. These sample results will provide a baseline for
stormwater discharges when the monofill has just begun operation and a comparison after
three years of operation. The Division will consider the data upon renewal of coverage
under this General Permit.
The facility may request "P%epresentative Outfall Status" for one or more ourialls at
the monofill so dint fewer outfalls must be sampled. Please see Footnote 3 to Table 1 in the
amended COC. A form for an ROS Request can be found on our website at
http:/ f portal.ncdenr.orgJweb%;r f itpdes-stormwater (on the ".Miscellaneous Forms" tab).
_ -;• We request that you provide copies of in -stream monitoring results per the
approved Water Quality Monitoring Plan (WQMP) required -by the Solid Waste Permit
....for this.monofill.site to the Raleigh Regional Office. Copies of these results should be sent
to the. attention of Dave Parnell in the NC DEMLR Stormwater Permitting Program.
...-.,.-,This permit does not affect the legal requirements to obtain other permits which
,may be required by the Division of Energy, Mining, and Land Resources, or permits
required by.. the Division of Water Resources, Coastal Area Management Act, or any other
federal or local governmental permit that maybe required. If the conditions as stipulated
in the COC are unacceptable to you, you may apply for an individual NPDES stormwater
permit.
If you have -any questions concerning this permit, please contact Bradley Bennett at
telephone number [phone], or Bethany Georgoulias at telephone number (919)
807-6372.
Sincerely,
for Tracy E. Davis, A.E., CPM
cc: Toby Vinson, DEMLR Land Quality Section
Dave Parnell, DEMLR Raleigh Regional Office
Autumn Romanski, DWR Raleigh Regional Office
CSergei_Chernikov; DWR-Wdter Quality Permitt n� g Section\ �
Stormwater Permitting Program Files
DWR Central Files

.4
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG120000
CERTIFICATE OF COVERAGE No. NCGI20101
STORNMATER DISCHARGES
NATIONAL POLLUTANT DISCII RG£ ELIMINA' ION SYSTEM
_ In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated wid adopted by the North Carolina Environmental
Management Commission, and the Federal Water -Pollution -Control Act, and the North
Carolina Administrative Code in NCAC 15A-02H .0114(b)(1), as amended,
Duke Energy Progress; Inc.
is hereby authorized to -discharge stormwater from a facility located at
Mayo Steam Electric Plant Monofill
10660 Boston Road
-Roxboro,
Person County,'
to receiving waters designated as Bowes Branch, a class C water in the Roanoke River
Basin, in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, I1, II1, and IV of General Permit No. NCG120000 as attached,
and as amended in pages 2-3 of this Certificate of Coverage.
Amended conditions
1. This Certificate of Coverage is an enforceable part of the permit.
2. In accordance with 15A NCAC 02H .0114(b)(1), the monitoring program in Part 11
Section B Table 1 Analytical Monitoring Requirements of this permit is amended
as follows:

Table 1 Analvtical Monitoring Rennirements
Frequency
ampleT
&.e -Saffip ,
't .Characteristics
P. i' �
:T 2
4,
-
Lbtatiofi
_
Chemical Oxygen Demand
mg/l_
semi-annual
Grab
SDO
Fecal Coliform
# ver 100 ml
semi-annual
Grab
SDO
Total Suspended Solids
mg/I
semi-annual
Grab
SDO
Arsenic jAs)5
MR/I
serni-annual
I Grab j
SDO
,Selenium Se)-5
L
mg,l
semi. -annual
Grab
SDO
Boron (B)5
mg/l
semi-annual
Grab
SDO
2H5
S.U.
semi-annual
Grab
SDO
Conductivity
SIM
semi-annual
Grab
SDO
Antimony ny (S b), Total
Grab
SDO
.Recoverable
Barium (Ba), Total
mg/1
Grab
SDO
,Recoverable
qer'yl ' lium'.(Be), Total
mg/1
Grab
SDO
Recoverable
Cadmium (Cd), Total
mg/1
Grab.
SDO
Recoverable
Chromium (Cr), Total
Mg/l
Grab
SDO
Recoverable
Copper (Cu), Total
mg/l
Grab
SDO
Recoverable
Lead (Pb), Total
mg/l
Grab.
SDO
Recoverable
Once during Jan 6-Jun 30, 2014;
:Mercury (Hg), To.tal
mg/l
Grab
SDO
Recoverable
Once during Jar, 1-Jun 30, 2017
Molyb6hdm (Mo')',_Total
mg/I
Grab
SDO
Recoverable
Nickel (Ni), Total
mg/1
Grab
SDO
Recoverable
Silver,,-(Ag), Total—,
Grab
SDO
Recoverable
a]
Thallium (TI), To : t
mg/l
Grab
SDO
.
Recoverable
Zinc (Zn), Total..-.,
'-'
mg/l
Grab
SDO
Recoverable
Total Chloride (Cl)
ma/l
Grab
SDO
Total Fluoride (F)
mg/I
Grab
SDO
Total Sulfafe
mg/l
Grab
SDO
Total Hardness
mg/I
Grab
SDO
Total Rainfall4
inches
semi-annual
Rain
gauge
FoQtaQjesl
Measurement Frequency: Twice per year or during the specified period, during a measureable storm
event.
2 1 COC No. NCG120101
effective January 6, 2014

I
2 Sample collection must begin within the first 30 minutes of discharge and continue to all outfalls until
completed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless
representative outfall status (ROS) has been granted by NC Division of Energy, Mineral, and Land
Resources (DEMLR). A copy of the DEMLR letter granting ROS must be kept on site. DEMLR's ROS letter
remains in effect through the subsequent reissuance of this permit and as long as the pertinent site
conditions and operations remain unchanged, unless the ROS letter provides for other conditions or
duration.
4 For each sampled rueasureable storm event the torai precipitation must he recorded from an on -site rain
garage. (Where isolated sues are unmanned for extended periods, a loco[ rafa gauge reading may be
substitutc .,'ora7a on -site ga4gr, upon .prior DEMUR Wriue.7 appr jval.)
5 No benchmark applies for these parameters. However, levels above 0.34 mg/1 As, 0.056 mg/l Se, or
outside a pH rarige df 6.0-9.0 S.0 should be noted on the Stormwater Data Monitoring Report (SDMA)-
submitted to-NC°DENR.- - --
This Certificate of Coverage shall become effective January 6, 2014.
This Certificate of -Coverage shall remain in effect for the duration of the General Permit.
Signed this day, January 6, 2014.
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission
3 I COC No. NCG120101
effective January 6, 2014

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NCG120101
W E
S
Map Scale 1: 24, 000
Duke Energy Progress, Inc.
Mayo Steam Electric Plant Monofill
Latitude: 360 32' 00'1 N
Longitude: 780 55' 21" W
County: Person
Receiving Stream: Boaves Branch
Stream Class: C
Sub -basin: 03-02-05 (Roanoke River Basin)
Facility Location

Georgoulias, Bethany
From: Davis, Tracy
Sent: Monday, June 12, 2017 7:23 PM
To: Georgoulias, Bethany; Randall, Mike; Patterson, Robert D
Cc: Vinson, Toby; Denton, Bill
Subject: RE: Mayo Monofill NCG12 Application
Bethany, I concur with your reasoning below and can attend a Wednesday AM meeting with you and Duke.
Thanks, Tracy
From: Georgoulias, Bethany
Sent: Monday, June 12, 2017 3:14 PM
To: Randall, Mike <[e-mail]>; Patterson, Robert D <[e-mail]>
Cc: Vinson, Toby <[e-mail]>; Davis, Tracy <[e-mail]>; Denton, Bill
<[e-mail]>
Subject: RE: Mayo Monofill NCG12 Application
See Lori's email below. I will respond to her tomorrow after we have had a chance to discuss further.
I disagree with her assessment. See 15A NCAC 02H .0114(b) (p. 13 of the 2H Rules) I do not think incorporating a coal
ash monofill (which was never publicly noticed in the first place because it was covered under the NCG12 General Permit
with augmented monitoring) into the Mayo Electric Plant individual permit (whose draft permit that went to public
notice never included this coal ash monofill) can squarely fit into one of these categories that is exempt from public
notice. While I don't think a public hearing is necessarily a given, it is a possibility that DEMLR should anticipate a
request for during the notice process given public interest. It is helpful to remember the original COC to Mayo's Monofill
was issued a month before the Dan River spill.
Tracy or Toby, if you have thoughts on this matter or interpretation of the rules here before we arrange a time to talk
with Lori this week, please let us know. I am available Wednesday morning and could meet with her then.
Thanks,
Bethany
13ethany Georgoulias
Environmental Engineer
Stornnvater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethany.gcorgouliasAncdcringov
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/stormwater
Email correspondence to and from this address is subject to the North Carolina Public Records
Law and may be disclosed to third parties.

ENR ENVIRONMENTAL MANAGEMENT COMMISSION T15A: 02H.0100
I 15A NCAC 02H .0113 1-NOTIFICATIOMORAPPLICANTS
The Director shall notify an applicant -of the final decision of the applicant's -permit application. Notifications of denial
shall be made by certified mail and shall specify the reasons therefor and the proposed changes which in the opinion
of the Director will be required to obtain the permit.
History Note: Authority G.S. 143-215.3(a)(1); 143-215.1(a); 143-215.3(a)(4);
Eff. February 1, 1976;
Amended Eff. October 1, 1987.
15A NCAC 02H .0114 MODIFICATION AND REVOCATION OF PERMITS
(a) Any permit issued pursuant to this Section is subject to revocation or modification in whole or part pursuant to 40
CFR 122.62 or for any of the following:
(1) violation of any terms or conditions of the permit;
(2) obtaining a permit by misrepresentation or failure to disclose fully all relevant facts;
(3) a change in any condition that requires either a temporary or permanent reduction or limitation of the
permitted discharge; and
(4) refusal of the pemuttee to permit the Director or his authorized representative upon presentation of
credentials:
(A) to enter upon permittee's premises in which an effluent source is located or in which any
records are required to be kept'under terms and conditions'of the permit,
(B) to have access to any copy and records required to be kept under terms and conditions of the
pernut,
(C) ito inspect any monitoring equipment or method required in the permit, or
(D) to sample any discharge 'of pollutants.
(5) '"failure to pay the annual fee for administering and compliance ,monitoring.
(b) Modifications and reissuance of permits shall'be subject to ttie 'same public notice and: other. procedural
requirements 'as' the issuance of permits except as follows: ,
(1) modifications of the monitoring program' contained in the periiut,'
(2) name changes or changes in the ownership of the discharge when no other change in the permit is
indicated,' • '
(3) a single modification of any compliance schedule not in excess of four months,
(4) modification of compliance schedules (construction schedules) in pernuts for new sources where the
new source will not begin to discharge until control,facilities'are operational,
(5) modifications to include or amend pretreatment program requirements,
(6) issuance of permits revoked for failure to pay the annual administering and compliance monitoring
fee, }, .
(7) modificationsdeterminedby.the, Director to be minor, such as typographical errors, incorrect maps,
and, similar minor changes.
History Note: Authority G.S. 143-215.3(a)(1); 143-215.1(b)(3);
Eff, February 1, 1976; .
Amended Eff. March 1, 1993; September 1, 1988; November 1, 1987.
15A NCAC 02H .0115 PUBLIC ACCESS
(a) All records, reports, and information required to be subnutted to the Commission or the Director; any public
comment on these records, reports or information; and the, draft and final permits shall be disclosed upon request to
the public unless the person submitting the information can show,that such'information, if made public, would disclose
methods or processes entitled to protection as trade secrets.
(b) The Director is authorized to determine information which is entitled to confidential treatment. In the event the
Director determines that such information (other than effluent data) is entitled to confidential treatment, he shall take
NORTH CAROLINA ADMINISTRATIVE CODE . Effective April 1, 2003 _ - Page 13 of 34

Georgoulias, Bethany
From: Tollie, Lori White <[e-mail]>
Sent: Monday, June 12, 2017 2:39 PM
To: Georgoulias, Bethany
Cc: Vinson, Toby; Davis, Tracy; Denton, Bill
Subject: RE: Mayo Monofill NCG12 Application
Hi Bethany,
Sorry I missed you last week I took a few days of vacation and went to the beach. I will be in the Archdale building this
Wednesday for some other items and was wondering if you'd have a little time to discuss this further? My
understanding of our current permit is that adding three existing stormwater outfalls (that are currently permitted) to
our ISW permit would not constitute a major modification nor would it require a public hearing. Please let me know if
sometime Wednesday will work for you. Thanks
Z.ri *' Xf&
Duke Energy
EHS CCP Permitting & Compliance
2500 Fairfax Road
Greensboro, NC 27407
Cell: [phone]
Office: [phone]
From: Georgoulias, Bethany[mailto:[e-mail]]
Sent: Friday, June 09, 2017 2:59 PM
To: Tollie, Lori White
Cc: Vinson, Toby; Davis, Tracy; Denton, Bill
Subject: RE: Mayo Monofill NCG12 Application
Lori,
Thank you again for the clarifying information regarding this site. This request would require a major modification to the
current stormwater permit NCS000580 for Mayo Electric Plant, which was only completed and issued last year. While
we realize that the Mayo Monofill currently under COC No. NCG120101 may need individual permit coverage in the near
future, that General Permit does not expire until October 31, 2017. With both facilities under a current active permit,
and the likelihood of a public hearing upon public notice of a major modification to Mayo's individual permit, we are not
able to process a modification to NCS000580 at this time.
However, if Duke Energy Progress would like to request a modification to the NCS000580 permit to include the Monofill,
we will consider that request closer to the expiration of the current NCG120000 General Permit. A major modification
to a minor NPDES permit is $260 (you can verify fees here htt de .nc. ov about divisions ener -mineral-land-
resources ener -mineral-land- ermits stormwater- ermits fees). You may submit that request as soon as you are
ready; we just want the company to be aware that it will be some time before we are able to work on it. The request
should include a summary of monitoring data to date from the Mayo Monofill.
I tried to phone the past couple of days and missed you, but please feel free to call me for a follow up on this next week.
Best regards,

Bethany
Bethany Georgoulias
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethany geor oulias @ncdenr.
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing}
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://deq.nc.p-ov/about/divisions/energy-mineral-land-resources/stormwater
Email correspondence to and from this address is subject to the North Carolina Public Records
Law and may be disclosed to third parties.
From: Tollie, Lori White [mailto;[e-mail]]
Sent: Thursday, June 01, 2017 1:23 PM
To: Georgoulias, Bethany<bethany.georgoulias@ncdenr.g_ov>
Cc: Patterson, Robert D <[e-mail]>; Randall, Mike <[e-mail]>; Vinson, Toby
<tobv.vinson(a?ncdenr.gov>; Davis, Tracy <[e-mail]>
Subject: RE: Mayo Monofill NCG12 Application
Bethany,
The plant property is contiguous with Duke Energy owning all the property including highway 501 with the DOT rhaving a
ROW. The activity is the same at the station and the monofill with it consisting of truck traffic utilizing established haul
roads. I have included a drawing from the property deed and an aerial from a previous NPDES submittal for reference.
The station manager Tom Copolo is the primary manager of all aspects of the entire site, including the monofill. Also, we
currently send wastewater generated by the monofill to the station for processing and this is covered under our NPDES
permit NCO038377. I hope this information is helpful. If you have any further questions, I'd be happy to discuss. Thank
you
Lori
-T-.,4 V. Xf%.
Duke Energy
EHS CCP Permitting & Compliance
2500 Fairfax Road
Greensboro, NC 27407
Cell: [phone]
Office: [phone]
From: Georgoulias, Bethany [maiIto: bethan ..aeorgoulias(&ncdenr.gov]
Sent: Thursday, June 01, 2017 10:43 AM
To: Tollie, Lori White
Cc: Patterson, Robert D; Randall, Mike; Vinson, Toby; Davis, Tracy
Subject: RE: Mayo Monoflll NCG12 Application

Geor oulias, Bethan
From:
Georgoulias, Bethany
Sent:
Thursday, June 01, 2017 10:43 AM
To:
'Tollie, Lori White'
Cc:
Patterson, Robert D; Randall, Mike; Vinson, Toby; Davis, Tracy
Subject:
RE: Mayo Monofill NCG12 Application
Attachments:
NPDES-Owner-Affiliation-Change-20170323-DEMI_R-SW.pdf
Ms. Tollie,
Looking at the locations of the Mayo Monofill (currently under NCG120101) and the Mayo Steam Electric Plant
(NC5000580), there is quite a bit of distance between these two facilities. In the NPDES program we cannot issue one
individual permit for facilities that are not contiguous (or at most, across the street from one another). Also, in the case
of two different site operation managers, we would usually not issue one permit even if the company is the same. We
assume these sites are also under different primary managers. Unfortunately, it does not look possible to incorporate
the Mayo Monofill site into the Mayo Steam Electric Plant's NPDES stormwater permit.
Redewers Related Permits Oulla9 IComments
rHistory Inspections r incidents;7
Enforcements r Violations
Details 1 r Details 2 r 1344nq
Events Reg. Activities
Etl, Guidelines
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Permit. 'x=i1 1701 Version: i3O
Status: dive
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919 774-5200
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P
04 382-5591
Owner
Contact Person
Grant, Rick
Owner
ContactPerson
Grant, Rick
Owner
ContadPerson
Haynes, Jason
910 205-2101
Owner
Contact Person
Henderson, Kelvin
(9i9 362-2000
Owner
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Hutcherson, Rodney
(9t9)546-2235
Owner
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Jones, Reuhin
9i9}546-3459
owner
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Kapopoulos,ErnestJ.Jr...
[phone]
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Owner
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[phone]
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[phone] �
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{92t3) 687-5201 !
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Owner
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CweretC George T.
919 548-6744
Owner
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Hillin
Hamilton, Tana
COOfdinatOf, E[rvlronmen...
919 862?2000
Permit
Incidentally, I see that all Duke Progress Energy permits have an Owner -Owner Affiliation of Tonya Hamilton in our
system. is this correct? I have asked Duke Representatives about this before, but it is still not clear whether we have
the appropriate legally responsible person (aka "Owner -Owner" affiliation) for these permits. Ms. Hamilton is an
Affiliation tied to MANY Duke Energy permits throughout DEQ through the owner company association, which is why it's
been attached to our particular stormwater permits. Who is the correct person for legal responsibility at Mayo
Monofill and at Mayo Steam Electric Plant? Attached is a form that you may return to us so we can correct this if
necessary. (Note, you can check Permit Contacts here for any Duke Energy Stormwater Permit and let us know what
needs to be added/removed.) We can make corrections for our Program permits specifically. If you can go ahead and
do that for NCG120101, that would be very helpful!

Renewal of Mayo Monofill under NCG12: It is likely that the site will need to come out from under the General Permit
and gain individual permit coverage. The NCG12 permit is up for renewal this year, and we will consider whether this
general permit is appropriate for landfills that accept primarily coal combustion waste. In its current form, this general
permit is not (hence the augmented COC issued to the Mayo Monofill in January 2014). We have not begun work on
renewing this general permit yet, but it will be publicly noticed for 30 days later this year.
In light of this, it would be helpful for the company to provide us a summary of stormwater outfall discharge data
collected to date for the site under NCG120101. We can then advise the company further on steps it should take to
continue permit coverage or obtain individual permit coverage for this particular operation as expiration of the
NCG120000 General Permit approaches.
Please let me know if you have any additional questions.
Best regards,
Bethany Georgoulias
Environmental Engineer
Stormwater Program, I)ivision of Energy, Mineral, and I1and Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethanv.eeori-youliasna.nedenr.syov
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: httnJ/dea.ne.tov/about/divisions/cner�,-v-mineral-land-resources/stormwater
Email correspondence to and from this address is subject to the North Carolina Public Records
Law and may be disclosed to third parties.
From: Tollie, Lori White [ma iIto: [e-mail]
Sent: Tuesday, May 23, 2017 11:05 AM
To: Georgoulias, Bethany<[e-mail]>
Cc: Patterson, Robert D <[e-mail]>
Subject: RE: Mayo Monofill NCG12 Application
Ms. Georgoulias,
The recent submittal was intended to be a renewal of the current NCG12 permit that will expire in October of this year.
The site at 10660 Boston Rd is already permitted. Thank you for returning the application and check.
Recently, we've had some internal discussion that Duke would like to explore the possibility of having the monofill
stormwater permitted under the Industrial Stormwater Permit NCS000580. I have attached a monofill drawing showing
the three outfalls we currently sample under the NCG12 permit and a copy of our ISW permit. I'd be happy to discuss
this further at a time convenient for you. Thank you.
1.1,1W. X&
Duke Energy
EHS CCP Permitting & Compliance
2500 Fairfax Road
Greensboro, NC 27407
Cell: [phone]

Office: [phone]
From: Georgoulias, Bethany [mailto:bethany.georgouliasCn ncdenr.gov]
Sent: Tuesday, May 23, 2017 10:03 AM
To: Tollie, Lori White
Cc: Patterson, Robert D
Subject: Mayo Monofill NCG12 Application
*** Exercise caution. This is an. EXTERNAL email. DO NOT open
attachments or click links from unknown senders or unexpected
email. ***
Ms. Tollie,
We received an NOI application for the Mayo Monofill in our office yesterday. We issued a COC for this site
(#NCG120101) back in 2014 (see attached initial issuance and subsequent modification). The facility address appears to
be the same.
Is this meant to be a new application, or maybe mistakenly submitted to request renewal of that site under the
NCG120000 General Permit? It is not necessary to submit a new Notice of Intent for renewal; however, we will review
data for this particular site as we begin work on the NCG12 renewal to determine if coverage under the General Permit
is still appropriate. We have several general permits expiring ahead of this one yet, though, so we have not begun that
process.
Please let me know if you have any questions. Otherwise, please confirm that we can return this application and check
on the basis that this site at 10660 Boston Road in Roxboro is already permitted.
Best regards,
Bethany Georgoulias
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethany.georgouliasna,�ncdenr.t:ov
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://deg.ne. =ova /about/divisions/ener€;y--mineral-land-resources/stormwatcr
Email correspondence to and from this address is subject to the North Carolina Public Records
Law and may be disclosed to third parties.

Georgoulias, Bethany
From: Georgoulias, Bethany
Sent: Friday, September 16, 2016 11:53 AM
To: Smith, Danny
Cc: Bennett, Bradley; Adams, Diane; Holley, John
Subject: FW: Mayo monofill surface water sampling
Attachments: 7305_20160720.pdf
Hi Danny,
I wanted to share this report with you on Groundwater and Surface Water monitoring for the Mayo Plant Monofill. It's
under a stormwater general permit, COC #hlCG120101- Landfills (but modified to include more extensive sampling), and
as part of the extra provisions, we required them to submit a copy of the surface water monitoring that they must
perform for the Solid Waste Permit.
Since Dave Parnell retired and Autumn Romanski is no longer there, I wasn't sure of the best DWR person to send this
to, but it's mostly just FYI. I've reviewed the results for this one, and they only indicate Cu exceedances that appear to
be normal for the background stream concentrations in this area. I just want to ask what we should do in the future if
there is an issue identified in these report results.
I've printed excepts of the report for our permit files here in Central Office, and I wanted to make sure someone from
DWR was in the loop. #ho is the best person in RRO DWR to share these with, in the event a surface water quality issue
arises and may need further investigation? We want to let RRO staff in DEMLR knowf
Thanks for your guidance on this, Danny!
Bethany
Bethany Georgoulias
1---nvironmental 1-ngineer
Storinwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethany.�,yeorgoulias @ncdenr.gov
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://portaI.ncdenr.org/web/Ir/stormwater
�Nothing Compares --,,.-
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

From: Bennett, Bradley
Sent: Monday, September 12, 2016 11:51 AM
To: Georgoulias, Bethany <[e-mail]>
Subject: FW: Mayo monofill surface water sampling
Bethany,
Were we supposed to be getting these reports?
Bradley Bennett
Stormwater Permitting Program Phone: [phone]
NC Division of Energy, Mineral and Land Resources Fax: [phone]
1612 Mail Service Center Email: [e-mail]
Raleigh, NC 27699-1612 Web: hdp:llportal.ncdenr.orglwebllrlstormwater
Email correspondence to and from this address may be subject to public records laws
From: Adams, Diane
Sent: Monday, September 12, 201611:40 AM
To: Bennett, Bradley <[e-mail]>
Subject: FW: Mayo monofill surface water sampling
Bradley,
Are you supposed to get this, or do we keep this for our records? I did find a few SW records for this facility in the
drawer, but it was not complete.
Thanks
Diane
From: Langley, Shannon [mailto:Shannon.Langley@duke-energ_y.com]
Sent: Sunday, September 11, 2016 12:26 PM
To: Adams, Diane <[e-mail]>
Cc: Randall, Mike <[e-mail]>; Lea Jr, Herbert M <Herbert.Lea duke-ener .com>; Muessen, Jake
<[e-mail]>; Miller, Robert Mull <[e-mail]>
Subject: Mayo monofill surface water sampling
Hi Dianne.
The Stormwater permit Duke Energy has for the Mayo monofill contained a request to provide surface water sampling
data obtained as part of our solid waste operating permit to the Raleigh regional office of DEQ to the attention of "Dave
Parnell". I know Dave retired some time ago so I am forwarding a copy of the most recent sampling results to you as our
current NCDEMLR regulatory contact in the Raleigh Regional Office. We sample twice per year in accordance with the
solid waste permit.
The surface water sampling results can be found in Table 6 of the attached submittal. Sampling locations are shown in
Figure 2.
The downstream sampling location (SW-3) continues to show generally lower concentrations for most constituents
evaluated than the upstream location with no downstream samples being in excess of adopted water quality criteria.
Thanks.

Shannon
From: Lea Jr, Herbert M
Sent: Wednesday, September 07, 2016 3:08 PM
To: Langley, Shannon
Subject: FW: Duke Energy - Mayo Steam Electric Plant Landfill Semi -Annual Groundwater Report (Permit No. 7305-
INDUS)
Hey Shannon,
Just checking in. I have in E-Trac reminder to assure the monofill solid waste semi-annual report is forwarded to Raleigh
Regional Stormwater Program, due 9/15/2016, Is what Kim sent to Elizabeth Werner, attached, completion of the
requirement?
Thanks,
Bert
From: Witt, Kimberlee
Sent: Wednesday, July 20, 2016 3:46 PM
To: Elizabeth Werner ([e-mail])
Cc: Kyle Donovan; Jerry Wylie; Hunsucker, Tim; Sullivan, Ed M; Lea Jr, Herbert M; Miller, Robert Mull; Langley, Shannon
Subject: Duke Energy - Mayo Steam Electric Plant Landfill Semi -Annual Groundwater Report (Permit No. 7305-INDUS)
Elizabeth,
Attached you will find reporting for the semiannual groundwater sampling performed in April 2016 at the Mayo Plant
Landfill Permit No.7305 located at the Duke Energy Progress, Mayo Steam Electric Plant. The attached files include:
• Environmental Monitoring Reporting Form
• Semiannual Groundwater Monitoring Report
• EDD (Excel file)
This information will only be transmitted electronically, let me know if you need paper copies.
Please feel free to contact me should you have any questions regarding the attached files.
Respectfully submitted -
Kim
Kiniberlee Witt, PE
DUKE ENERGY
Sr. Engineer - Environmental Services
3191 Pine Hall Rd.
Walnut Cove, NC 27009
336-215-4576

m
Mayo Semiannual Groundwater Monitoring Report — April 201.6 Sampling Event July 2016
Duke Energy Progress, LLC SynTerra
3.0 RESULTS
3.1 Site Groundwater Flow
Generalized groundwater surface contours and groundwater flow direction arrows for
the site are shown on Figure 3. These contours were developed using the groundwater
elevations measured on the date of sampling. Calculated flow velocities are presented
in Table 2.
Groundwater flow in the aquifer beneath the Phase 1 footprint is from the areas of
higher topography located along the central and western portion of the Phase 1
footprint generally towards the reach of Bowes Branch located along the eastern
boundary of the landfill.
3.2 Analytical Results
A summary of the field sample collection data is presented in Table 3. The field and
analytical results of groundwater samples collected from the monitoring wells are
presented in Table 4. The analytical results for these samples are compared to the
groundwater standards established in Title 15A NCAC 02L .0202 (g) (2L Standards).
Concentrations that attain or exceed the 2L Standards are noted in Table 4 by bold font.
A summary of the field and analytical results that attain or exceed the 21, Standards and
a preliminary analysis of the cause and significance of the exceedances are presented in
Table 5.
Surface water sample location SW-1 is located on an un-named perennial stream
(tributary of Bowes Branch) and surface water sampling locations SW-2 and SW-3 are
located on Bowes Branch. Bowes Branch is classified by the NCDEQ Division of Water
Quality as a Class C water body. As a result, the field and analytical results from these
locations are compared to Title 15A NCAC Subchapter 2B Standards (2B Standards) for
Class. C waters. The field and analytical results for the surface water samples are
summarized in Table 6. Concentrations with values that attain or exceed the 2B
Standards are noted in Table 6 by bold font. A summary of the field and analytical
results that equal or exceed the 2B Standards and a preliminary analysis of the cause
and significance of the exceedances are presented in Table 7.
The field and analytical results for leachate sampling are summarized in Table 8.
Page 5
P:\Duke Energy Progress.]026105.MAYO\ 17. 2016 Well Samping MonofilINAPRIL 2016 SOLID WASTE PERMIT
REPORT\Final April 2016 Monofill Report.docx

.4
Mayo Semiannual Groundwater Monitoring Report — April 2016 Sampling Event )uly 2016
Duke Energy Progress, LLC SynTerra
Concentrations with values that equal to or greater than the Solid Waste Section Limits
(SWSLs) are noted in Tables 4, 6, and 8 by gray -shaded cells.
Select samples were diluted, as is normal laboratory practice, to bring samples within
the calibrated range of the analysis. Specifics regarding the samples that were diluted,
including the dilution amount, are reported in the EDD.
Page 6
P:\Duke Energy Progress.1026105.MAYO\17. 2016 Well Samping Monofill\APRIL 2016 SOLID WASTE PERMIT
REPORT\Final April 2016 Monofill Report.docx

m11 ` ` (/ f ■fir /r/�� i l�"y:. -. %�.� l �il��✓��// � 14 • - - � ..,.
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PHASE I TOP OF LINER CONTOUR
(' DUKE sao 0GfU+PHICSCALE FIGURE 2
soo sao sao
ENERGY SAMPLE LOCATIONS MAYO
(IN FEET) STEAM ELECTRIC PLANT
synTerm PROGRESS ROXBORO, NORTH CAROLINA
DRAWN BY: B. YOUNG DATE: 07/IV2016 CCP LANDFILL, PHASE 1
148 RIVER STREET, SUITE 220 MAYOSTEAM ELECTRICPOWER PLANT DDNOvaN K. Da7E:O7/1�r201fi
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TABLE IS
SURFACE WATER FIELD AND ANALYTICAL RESULTS
MAYO CCP LANDFILL PHASE 1 - PERMIT NO. 7305
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Parameter
SWS ID
Units
Certificate
Code
Sample Location
MDL
SWSL
15A NCAC 29
Standard
Federal MCL
7309 SW-1
7305 SW-2
7305 SW-3
Field pH
320
S.U.
5591
7.11
7.17
7.33
NE
6.0-9.0
6.5-8.5**
5 tint Conductance
323
pU/cm
5591
191.3
123.9
130.2
NE
NE
NE
emperature
325
°C
5591
9.9
10.3
9.8
-
NE
NE
NE
Arsenic
14
U /L
246
<1
<1
<1
0.078
10
10
10
Barium
15
a /L
248
44
20
25
0.1
100
1000
2,000
Boron
428
y /L
248
<50
<50
<50
3.3
NE
NE
NE
Cadmium
34
/L
248
<1
<1
<1
0.101
1
0,15•
5
Cadmium (dissolved)
p /L
248
<0.080
<0.080
<0.080
0.101
1
0.15`
5
Chloride
455
y /L
248
S,000
16r000
15,000
22
NE
230,000
250,000-
Chromium dissolved
51
/L
248
0.53
0.443
0,27)
0.5
1D
35
100
Chromum VI (dissolved)
p /L
248
0.025 M1
0.026
0.045
0.5
10
11
100
Chromium III (dissolved)
-
p /L
248
<10
<10
<10
0.5
10
24
100
Copper
54
/L
248
<5
<5
<5
1
10
2.7
1,300
Copper (dissolved)
y /L
248
4.7
3.3
2.0
1
10
2.7*
1,300
Fluoride
312
pqjL
248
170
240
210
17
2,000
1,800
4,000
Iron
34D
y /L
24B
701
961
961
1.3
300
NE
300**
Lead
131
p /L
248
<1
<1
<1
0.065
10
0.54*
15
Lead (dissolved)
/L
248
0.51
0.35
0.2
0.065
10
1 0.54a
15
Manganese
342
y /L
248
191
33
124
0.2
50
NE
50**
Mercury
132
W91L
24$
0.00176
0.00178
0.00166
0.006
0.2
0.012
2
Nickel
152
ti/L
248
<5
<5
<5
0.5
50
16-
NE
Nickel dissolved
-
p /L
248
0.71
<0.50
<0.5
0.5
50 1
16` 1
NE
Nitrate (as Nitrogen)
303
pg/L
248
50
<23
<23
5.4
10,000
10,000
10,000
Selenium
183
y /L
248
<1
<1
<1
0.092
10
5
50
Silver
184
VgIL
248
<5
<5
<5
0.7
10
0.06
100**
Silver (dissolved)
yg/L
248
<0.50
1 <0.50
<0.50 1
0.7
SO
0.06
100"
Sulfate
315
yg/L
1 248
4,200
4,800
5,400
18
2S0,000
250,000
250,000-*
Total Dissolved Solids
311
/L
248
140,000
78,(100
8Q,000
16,700
NE
500,000
500,000`•
Zinc
213
/L
248
<5
<5
<5
2.6
10
36`
5,000--
Zinc dissolved
213
a/L
248
32.9
7.3
6.4
2.6
10
36*
S 000'*
O2ssa; Preparea dy: LS12y Lnecicea DY: 88
1. © - concentrations are equal to or greater than the Swst-
2. Bold Cancenitradorls are equal to or greater than the 15A NCAC 23 Standard (far pH bold indicates a measurement outside of the range).
3. Sampaes collected by smrerra Corporation on April 6, 2D16.
4. all -nitrations are presented In gVIL.
S. 5wS ID - the Sand Waste Seelon Idem"kabon Number.
6. MDL - lahmatory Method Detection Umt, The MDL values presented are the lowest MDLS values for the leachme Samples. Samples with greater dilution factars Win have MDLs great than the values presented.
7. SWSL - the Sold Waste Sectwn limit. NCDENR defines the SWSL as the lowest amount of ana4yte In a sample that can be guartdabvely determined enth suitable preds m and accuracy.
S. 15A NCAC 26 Standard IS UW North Carol>rra Administrat-e Code, title 15A: N=ft Subchapter 28 - Sufaca Water and Wetland Standards.' (last amended on January 1, 2015) for dam C waters
9. 15A NCAC 28 Standards are for dissolved constituents except for Arsenic, Basium, Boron, Chlonde, Fluoride, Manganese, Mercury, Selenium, Sulfate, Thallium, and Total Olssolved Sonds which are total Standards.
W. stardards for Class C waters amume the n os< stringent of rreshwamr and Huanarl heath Standards
11, Bowes Branco and the perennial stream to Bowes Branch are classified as class C waters RegrlaLon 15A NCAC 02e,0211 proves water quality standwd. for class c waters.
12. MCL - Flderal haxir-rn Coritamina0l, Level a5 found In 40 CFR, Subpart G S 141.62.
13. - Standard fisted Is hardness dependent; standard Is displayed assuming a hardness of s 25 mg/L
14. -- Concentration listed Is a secondary maxlr-m contaminant level (SMCL). SMCLS are eitabildwd by EPA In the National Secondary Dnnking Water Regulations as found In 40 CFR §143.3.
Is. 7305 - CCP MonofiB, Prase 1 - Permit No. 7305
15, NE - Not Established
t7. S.U. - standard urns
Le. p0jun - mtromllos per centimeter
19. pWL = mcrograms Der liter
20. 'J' IS used to Identify estimated concentrations which equal or are greater than the MDL but are less than the laboratruys meal" reportuq Urnit {MRL).
21. Quall6ers In nm-itaNUxed text are laboratory data gvaliflers or "flags". 'M 1" Is used for the matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control samples (I -CS) recovery.
P:%Duke Energy Progress.Io26105.MAY0\17. 2016 Well Samong MonofilWRIL 2016 SOLID WASTE PERMIT REPORT\Table 6 Surface water Feld and Analytical RewRs.xlsxTabfe 6 Surface Water Feld and Ana"cal ReR/ts.xisxtable 4 Page 1 of I

TABLE 7
FIELD AND ANALYTICAL RESULTS EQUAL OR EXCEED 15A NCAC 2B SURFACE WATER QUALITY STANDARDS
MAYO CCP LANDFILL PHASE 1 - PERMIT NO. 7305
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Sample
ISA
Historical
Parameter
ID
Result
Units
NCAC 2B
Concentrations
Cause and Significance
Standard
Copper
SW-1
4.7
< 5 - < 5
Copper concentration at SW-1 is consistent with historical concentration ranges
(dissolved)
u9/L
2.7 *
SW-2
3.3
< 5 - < 5
Copper concentration at SW-2 is consistent with historical concentration ranges
Notes;
1. 15A NCAC 26 Standard is from "North Carolina Administrative Code, Title 15A: Department of Environment and Natural Resources, Subchapter 26 - Surface Water
and Wetland Standards." (last amended on January 1, 2015) for Class C waters.
2. Analytical results obtained from Electronic Data Deliverable (EDD) provided by Duke Energy on May 17, 2016.
3. trg/L indicates micrograms per liter.
4. Historical concentrations based on data in Duke Energy analytical results database.
5. * Standard listed is hardness dependent; standard is displayed assuming a hardness of 5 25 mg/L.
6. Field sampling performed by SynTerra Corporation, April 6, 2016
P:\Duke Energy Progress. 1026\05.MAYO\17, 7016 Well Samping Monofill\APRIL 2016 SOLID WASTE PERMIT REPORT\Table 7 - 213 Surface water Exceedances.xlsx' Page 1 of 1

NR We ONLY; I I at!e! r Report ❑Ek b is Data - Emad CD (date looped: Yes! No) DprlEv*fd
c DE 4 t Environmental Monitoring
Division of Waste Management - Solid Waste Re Orlin Form
This forma any n area to a me R as m 1 -1. mer.4 sea
avalable for Inspec0on and examination by any person va+on negvest (NC Ganaml Slabets 132-6).
Ina6vctioals:
• Prepare one form for sash Individually monitored unlL
• PMaw type ar prhd le91a1'•
• Attach a notikation table wan values the[ enam or exceed NC 2L growrdorzOm standards or NC 2B surbas water standards. The nofdkehon
must MdLKM a ptailyrnary anayals or Vm Cause and aignarranca of each valve. is.g. hsbuafy occuen ng, 6fr4ite Source, prstostNp
Wndbon. eW )-
• AaaCh a nom br"tion table of any gundwafer or surlaw water vzk a that equal or exossel tbs ragort: w hftu.
Attach ■ wterostlan told at sme methane gas vahues that attain or exoead exMdalve pas busts- This lara,das pry structures on or nearby the
foolty (NCAC 13B .la29 (4Xa)(f)-
• Send 11e onglisl Signed and seabd foml any tables. and Efertmnk Data Detiverable to: CompUrKe Ural, NCOFNR-0riM, Sold YYasta
Section, 154e Mat Serviu Center. Raleigh, NC 27899.1646.
Solid Waste Monitoring Data Subrnlltal Information
Nacre of emlty submtn:V data (Isbormory, emnsufdra, WOMY rmner(: - - - — --
HOR Engineering, Inc of theCarolirlas (Consultant)
Contact for quwtfwn about dab fom a ftfng. texktls data prwpnrveo name, t "phbrne number and Email adeba,"
Name: VMbm M- Miller - Phone: 825491-SM
Emaa: ta.mhs!Ohdmx.00m
• NC tindrA Rnb: Arbul sampling dates (e.g.,
Fad[N rums: fatty Address: radtity Permit a f.0500 M A6001-OCldber 20.24. 20M
.
Duke Energy Progress
Plem
10660 Boston Rtwd
El
KI
Naysnter 13, 2014
Coo Combustion Products MoneM
Roxboro. NC 27573
Envirorelwntal Stetw: (Chsck an flat aPpfyi
© InUaUBackomnd Monitomg Q Defection Monitoring © Assessment. Moneweq. © Carreclhre Acton
T of data Submitted: (Chaco a6 that apptyi
Gmundwmer manaodrg date from monsoring welt ❑ Methane gas monaoring data
Groundwater rmnaarmp data iron private water Supply welt ❑ ConeCM moon data (sPedM
X teachate monde ling data dher{spatdyl
x Sudam water rnonitorlrrn data
Notlll—Um attached?
No. No grouraWater or surface water standards were exceeded.
X Yes, a notdreabon at values excesdrno a prwndw*W or Surface water standard is affacenad. 4 Includes a fat of grounc walsr and surface wmer
mmetori g polrts. dates, matlacal values. NC 2L groundwater standard, NC 20 surface water standard or NC Solld Waste GWP4 and
prelanh wry amyss of the nvre and sorufl an a of any corim mratkx.
© Yes, a notification of values eacaedhg an expires ,re methane gas WM t &Mvhed. It end Wes Ile methane monaorkV points. dates, sample
values and expkxLI a methane gas limit.
Certification
To 0n teat of my • statements tared• w N data
me bur Va eorrset
Furtfwnnon, I dye aGacfwd wmplsls MflNeaden M luny Sompllry ye(uee rrwerlrq or sxraedirnp prdundwalM st —rda Or sxPiosM pea
levels, and a pregminuy ma"Is of the cacao and slpnlfkarrce of calwmra0ors mending grourxh M dandardls. t San awns firm than
are significant perntbas for malting airy false aUUnrent ropneentation, or cortl1bution 1ncludIng Ute possihfiAy of a fine and imprisonnem.
YNIUm M. Wier Senior Engmer (me) 8914296
facet Repreferrlrtive Name(Prind Thle (Area CodeVtelephonMWMERZ�Vxg
Nmbr
March 6, 2015 Af@r NC is Seal
Signatnra Dab
"0 S. Church Sbryu Sale 1000, Charlotte, NC 28202
Facility Reprosantatiw Address
F4116
NC PE Fum License Number (a applicable effective May 1, 2009)
Revised ISOM
SE AL
17661
F)

REPORT VERIFICATION
PROJECT:. SEMIANNUAL GROUNDWATER MONITORfNG REPORT
MAYO ELECTRIC'GENERATING PLANT
COAL COMBUSTION PRODUCTS MONOFILL PHASE 1
PERMIT NO, 7305
TITLE: NOVEMBER 2014 SAMPLING EVENT
This document has keen reviewed for accuracy and quality. commensurate with the intended
application.
Prepared by: Dale: G o70/ s
Checked by: �y 1. n/�Ytii Date: .12& %ln,116S_
Approved by: �'� �" Date: 3 rt -ZC)t C3
Project Manager. Brooke Ahrens, PE
Professional Engineer Seal:
HOR Enginaering, Inc. of the Carolinas
440 South Church St., Suite 1000
Charlotte, NC 28202
North Carolina Engineering Firm Number F-01.16
nuke energy vrogreaa, rne. I Semiannual Gmuridxatar kkxdo iig ReFJ
port �
Mayo Ele d. Generating Plat- Coal Combustion Products Mcn Rl Phase s
Navember2014 Sampkng Event
CQNTrWs
Contents
Contents................................................................
Section 1 - Background ..........................................
Section 2 - Methods ...............................................
2.1 Sampling and Analysis Methods ..............
2.2 Statement of Work ...................................
Section 3 - Results .................................................
3.1 Site Groundwater Flow ............................
3.2 Analytical Results .....................................
Page
—3
.......................... 3
....................................................... 3
.................................................... 5
....................................................... 5
................................................ I...... 5
Figures
1. Site Location
2. Sample Locations
3. Generalized Groundwater Surface Contours — November 2014
Tables
1. Well Construction Information
2. Groundwater Flow Velocities
3. Field Data Parameters
4. Groundwater Field and Analytical Results
5. Field and Analytical Results that Equal or Exceed 15A NCAC 2L Groundwater Quality
Standards
6. Surface Water Field and Analytical Results
7. Field and Analytical Results that Equal or Exceed 15A NCAC 2B Surface Water Quality
Standards
8. Leachate Field and Analytical Results

Duke Energy Progress, Inc.1 Semiannual Gmundw It Monitoring Report M���
Mayo Elednc GrJrerelarg Plaid - Coal Cvrnbusion Proucts d-Nill Ph se 1
Nowmber 2014 SampWog Event
CONTENTS
Appendices
A. Field Sampling Forms
B. Laboratory Report and Chain -of -Custody Forms
Duke Energy Progress, Inc. 1 Semiannual Groundwater Monitoring Repon it
Maya Eladdc Genaw,rg Plam - Coa1 Combustion Products ManolAl Ph— 1
Na—Mr 2D14 Sampbng 17v
SECTION I - BACKGROUND
Section 1 - Background
The 727-megawatt (MW) Mayo Electric Generating Plant (station) is located at 10660 Boston
Road, Roxboro, Person County, North Carolina. The station is owned and operated by Duke
Energy Progress (Duke Energy) and generates electricity by combustion of coal. The landfill,
Mayo Electric Generating Plant, Coal Combustion Products (CCP) Monofill, Phase 1, is located
to the northwest of the station. The landfill accepts fly ash, bottom ash, flue gas desulfurization
(FGD) by-products, and other by-products from coal combustion associated with power
generation at the station under North Carolina Department of Environment and Natural
Resources (NCDENR) Solid Waste Permit No. 7305. NCDENR issued the Permit to Construct
;for the monofill on July 19, 2012. The permit to operate (PTO) was issued on July 10. 2014, and
waste placement began on November 7, 2014.
As described in the Water Quality Monitoring Plan (WOMP), the monofill is located within the
Piedmont physiographic province.' The Piedmont physiographic province is comprised of
several geologic belts with areas of similar rock types and geologic history. The monafill is
located within the Milton Belt which includes metamorphosed volcanic and sedimentary rocks.
According to the WQMP, during the Feld investigation for the monofill Design Hydrogeologic
Report, three hydrogeologic units were identified on site: saprolite, partially weathered rock
(PWR), and bedrock. Groundwater was generally not encountered in the saprolite unit.
Groundwater was encountered in the PWR unit over much of the monofill site. The bedrock
hydrogeologic unit is continuous across the monofill site.
The monofill site is located on an upland area with surface water drainage features that
discharge to the east and northeast into Bowe's Branch, a inbotary of the Hyco River. The
surface water features to the west of the monofill site drain to the northwest to an un-named
tributary of Bowe's Branch, The 104-acre disposal facility will be developed in 11 phases with
Phase 1 encompassing approximately 31 acres.
The monafill location and nearby area are presented on Figure 1. Figure 2 shows the Phase 1
monofill site, topography, and vicinity features.
'Water Quality Monitoring Plan —Duke Energy Progress, Inc., Mayo CCP Monofill, Permit No. 73-05,
Golder Associates NC, Inc. Project No, 063-6562034, March 2014.
1

Duke Enorgy Proems, Inc. I Semiannual Gmundvmter MonVEomg Repot ���
Mayo Llednc Generating Plao - Cael Cmnbustim, Products Mmq I Phase 1
N--bnr 2014 Sampkng Ewmt
SECTION i - BACKGROUND
As described in the WQMP, the monitoring system for the Phase 1 portion of the monofill
consists of the following:
Monitoring Wells: MW-1
MW-2
M W-3
MW-4
M W-5
Surface Water Sample Locations: SW-1
SW-2
SW-3
Leachate Sample Locations: L-1
L-2
The monitoring wells, surface water sampling locations, and leachate sampling location L-1 are
depicted on Figure 2.
According to the WQMP, MW-1 serves as a background water quality monitoring well and is
located upgradient of the monofill. The WQMP states the monitoring network is designed to
monitor for releases to the uppermost aquifer at the monofill. The wells were installed with
screen lengths ranging from 10 feet to 20 feet in length. Table 1 presents well construction
information for the landfill monitoring wells.
Surface water sampling location SW-1 is located on an un-named perennial stream (tributary of
Bowes Branch) and is southwest of Phase 1. SW-1 is located upstream of where groundwater
from the Phase 1 region would discharge into the un-named stream or Bowes Branch. Surface
water sampling location SW-2 is located on Bowes Branch to the east of the Phase 1 monofill.
Surface water sampling location SW-3 is located on Bowes Branch downstream from SW-1 and
SW-2. The surface water flow on Figure 2 is generally from the south to the north.
Leachate sample L-1 is collected from the facility's leachate tanks located to the west Of the
Phase 1 monofill. The leachate sample is collected from an inline sampling valve linked to each
of the three leachate tanks; therefore, the sample is considered a composite leachate sample.
The facility has the ability to direct leachate through a force main to the National Pollutant
Discharge Elimination System (NPDES) permitted scrubber blowdown pond located on the east
side of NC Highway 501, Should the facility have no leachate in the leachate tank system and
be diverting leachate from the monofill to the scrubber blowdown pond, the leachate sample will
be collected from the end of the pipe at the scrubber blowdown pond. If the loachate sample is
collected from this location, it will be identified as L-2. -
Duke Energy Frog-. Semiannual Groundwater Mariloirg Repot MaFEZ
Maya Ek ci-Generating Pb rn -Coal C buslwn Pmducls Monolil Phase 1
November 2014 Sampling Event
SECTION r - METHODS
Section 2 - Methods
2.1 Sampling and Analysis Methods
The collection of samples and documentation of sampling was performed by SynTerra
Corporation (SynTorra) personnel (SynTerra Field Certification #5591) according to the North
Carolina Solid Waste Management Guidelines. Copies of the field sampling forms are included
in Appendix A. The parameters and constituents reported were selected by Duke Energy and
the NCDENR Division of Solid Waste and were analyzed by Duke Energy Analytical Laboratory
(North Carolina Laboratory Certification #248). The laboratory report and chain-of-rustody forms
are included in Appendix B.
The groundwater and surface water samples were analyzed for the following constituents:
• Barium, boron, chromium, copper, iron, manganese, nickel, silver, and zinc using U.S.
Environmental Protection Agency (EPA) Method 200.7
• Arsenic, cadmium, lead, and selenium using EPA Method 200.8
• Chloride, fluoride, nitrate (as nitrogen), and sulfate using EPA Method 300.0
Mercury using EPA Method 245.1
• Total dissolved solids using Standard Method (SM) 2540C
Total organic carbon, biochemical oxygen demand, chemical oxygen demand, and thallium
appear on the laboratory chain -of -custody form: however, these constituents are not required to
be analyzed in the WQMP and were not analyzed for during the sampling event.
2.2 Statement of Work
HDR completed the following tasks:
• Received November 2014 field sampling information provided by Duke Energy
(performed by SynTerra personnel) for monitoring wells MW-1, MW-2, MW-3, MW-4,
and MW-5. Data was also received for surface water sample locations SW-1. SW-2, and
SW-3, and leachate sample L-1. The samples were collected an November 13, 2014,
HDR received the data on December 10, 2014, and January 8, 2015.
• Reviewed the laboratory analytical results for the samples listed above. The Electronic
Data Deliverable (EDD) provided by Duke Energy was adapted to conform to the format
requirements of the NCDENR EDD template. HDR added an italicized J data qualifier (J)
to indicate a measured concentration that is equal to or greater than the laboratory's

Duke Energy Progress. Inc. I Senn onnual Gmundx tar neMonitomg Repon ! �j
Mayo Eleddc Generating Plant -Coal Combustion Pmducm M i oril Phase 1 r
November 201a Sampling Event
SECTION 2 - METHODS
Duke Energy Progress, Inc. I Semiannual Gmurdwater Monitoring Report !
Ma�jyo Elecrdc Gen —ling Plant -Coal Combustion Products Monornl Phone 1 r
Nevember2014 Sampling Evenl
SECTION 3- RESULTS
method reporting limit (MRL) but less than the Solid Waste Section Lim112 (SWSL). A
copy of the original EDD is retained in HDR's files.
Section 3 -Results
Developed generalized groundwater surface contour map using map data and
groundwater elevation data supplied by Duke Energy. Calculated groundwater flow
velocities based on groundwater surface contours.
Prepared and submitted this Semiannual Groundwater Monitoring Report to Duke
Energy.
: The Solid Waste Section Limit (SWSL) is defined by NCDENR as the lowest amount of analyte in a
sample that can be quantitatively determined with suitable precision and accuracy. The SWSL is the
concentration below which reported results must be qualdSied as estimated. NCDENR Division of Waste
Management Memorandum dated February 23, 2007,
4
3.1 Site Groundwater Flow
Generalized groundwater surface contours and groundwater flow direction arrows for the site
are shown on Figure 3. These contours were developed using the groundwater elevations
measured on the date of sampling, Calculated Now velocities are presented in Table 2.
Groundwater flow in the shallow aquifer beneath the Phase 1 footprint is from the areas of
higher topography located along the central and western portion of the Phase 1 footprint
generally towards the reach of Bowes Branch located along the eastern boundary of the
monofill.
3.2 Analytical Results
A summary of the field data is presented in Table 3.
The field and analytical results of groundwater samples collected from the monitoring wells are
presented in Table 4. The analytical results for these samples are compared to the groundwater
standards established in Title 15A NCAC 02L .0202 (g) (21- Standards). Concentrations that
attain or exceed the 2L Standards are noted in Table 4 by bold font. A summary of the field and
analytical results that attain or exceed the 2L Standards and a preliminary analysis of the cause
and significance of the exceedances are presented in Table 5.
Surface water sample location SW-1 is located on an un-named perennial stream (tributary of
Bowes Branch) and surface water sampling locations SW-2 and SW-3 are located on Bowes
Branch. Bowes Branch is classified by the NCDENR Division of Water Quality as a Class C
water body. As a result, the field and analytical results from these locations are compared to
Title 15A NCAC Subchapter 2B Standards (2B Standards) for Class C waters. The field and
analytical results for the surface water samples are summarized in Table 6. Concentrations with
values that attain or exceed the 2B Standards are noted in Table 6 by bold font. A summary of
the field and analytical results that equal or exceed the 2B Standards and a preliminary analysis
of the cause and significance of the exceadances are presented in Table 7.
The method detection limit (MDL) for silver results at SW-1. SW-2, and SW-3 was greater than
the 2B Standard. The MDL for silver was less than the SWSL as required by the February 23,
2007, NCDENR memo. Silver was not detected at concentrations greater than the MDL in these
samples and is not considered to exceed the 2B Standards.
The field and analytical results for leachate sampling are summarized in Table 8.
Concentrations with values that equal to or greater than the SWSLs are noted in Tables 4, 6,
and 8 by gray -shaded cells.

Dupe Energy Progress, i I $smiaonwi Gmundwnler Monitoring Report
MayF)l
o Electric Generating Plant —Coal Combustion Prodocl3 Monofill Phase I
Nowmbar 2014 5—pling Even)
SECTION 3- RESULTS
Select samples were diluted, as is normal laboratory practice, to bring samples within the
calibrated range of the analysis, Specifics regarding the samples that were diluted, including the
dilution amount, are reported in the EDD.
FIGURES

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SITE LOCATION MAP MARCH s.zuts
MAYO ELECTRIC GENERATING PLANT
CCP MONOFILL, PHASE 1 F6
PERMIT NO. 7305
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SAMPLE LOCATIONS wARCHe•xole
MAYb ELECTRIC GENERATING PLANT
CCP MONOFILL, PHASE 1 rauae
PERMIT NO. 7305 2

1
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GENERALIZED GROUNDWATER DATE
SURFACE CONTOURS N RATING R Y1LRCIia.ma
MAYO ELECTRIC GENERATING PLANT
CCP MONOFILL, PHASE 1
PERMIT NO.7305 3
TABLES

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r ra.+.....Nw.n
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Table 2 - Groundwater Flow Velocities
Duke Energy/Mayo Electric Generating Plant
CCP MDnofill, Phase 1- Permit No. 7305
..wrri
Upgradient
Distance
Groundwater
Downgradlent
Between
Contour
Groundwater
Contours
Hydraulic
Hydraulic
Effective
Groundwater
Elevation
Contour Elevation
through Well
Gradient
Conductivity
Porosity
Velocity
Well ID_ (ft)
i
(it)
(ft/ft)
Ift/dtl
(%/100)
_ {fyda)�_
MW-3 420
392.97
453
0.06
0.41
0.259
0.09
MW-4 420
389.30
559
0.05
0.41
0.259
0.09
Notes:
1. Linear distance measured through monitoring wells is generally perpendicular to groundwater contours,
2. At monitoring well locations where downgradient contours are not present, the groundwater elevation at
the monitoring well is used as the downgradient groundwater elevation.
3. At monitoring well locations where upgradlent contours are net present, the groundwater elevation at
the monitoring well is used as the upgradient groundwater elevation.
4. Monitoring wells are not listed where insufficient groundwater contour information is available to calculate velocity.
5. Hydraulic gradients and groundwater velocities are apprwimale.
6. Hydraulic conductivity presented for MW-3 and l is the geometric mean of the conductivity data for the alluvium/soil/saproitte
hydrostratigraphic layer in the HDR Conductivity Database (unpublished data from Piedmont Carolina sites with foliated/layered bedrock).
7. Effective porosity presented for MW-3 and MW-4 is the mean value of the alluvium/sail/saprolite hydrostratigraphic layer
estimated from sail testing using Fetter/Bear Diagrams. I
Page 1 of 1

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Table 5 - Field and Analytical Results that Equal or E¢ceed
15A NGC 21. Groundwater Quellty Standards
Duke Enerpr/Mayo F]ectrie Generating Plant
CCP Momflll, Phess 1- Pemix No. 7305
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Table 0 - Surface water Field and Ma"al Results
Duke Energy/Mayo Electric Generating Plant
CCP MonoRll. Phase 1- Permit No. 7305
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i. Mfa b M f•¢Ira M.airwm Curr.nwbM L•rH a• rwn. n aG ciR, Euep•rt c. 11.LEL
.rr ama a • x.ae.r m.arxrr.Hnama.al..•IaMa1 sMp. an nulwwY m [nEM M wq•a s.wM.nom.baw.e.r R.wrEon. x roma N .o nn ]u]a.
.• pgart•.w rna r w.nY• L.ranwHtl M Mpiow 1SL •ICAO 0]e M1L
l0. IN.yM r.YH. MEmrMq Nl.prew M a..I•r Mn M lMSL
SL EW r W.• IMkq...M.. ar.t •a.N H..txtl M• ISA NGC 3e 3YMM6
13. 4L vac.m. nm.•mebn.¢. tl Wp nM iMK•Y MI Hen ,. nn inlwmHbn nvwnlw M r.Yp.tta• row,
11 W.bwnnrrlwtlul.a vn v.rmnHP a.0 4x N�p•.%-..d rwnery r.xE.nti war•eHmne.w.Pa•.nrar•r.[r•mrr.rM rpH•Ianh mar.a a•r•Nbn enn lMCLI
'Ir u�. r wn•r..].aa+aN pwwnygpr. •Iyr apral w A hq.r tlrn M upL Mt.n Mw M tln e.HwHf. wagM n.HarE es MnL
M rt.IrLM fAEN. wvgrr..rlx, wY.¢ W rq¢ bnecM nM.MHYNr wnrN puH H w ea•NI Inn M r.HgHfY MEl rn ✓. rr m.r M qY]I.
1.. 4awar[m n. [w11g4•M Yar.uP'•.oP.p x M xf9f3rR ow.iM Hwnm MPn•pm•M w•.p•p, Mn tl Mlnaw b t¢we• wwafna nx W num.n IeEB1ODE,.Hw i. er W npam. sae 1•evey
Iw M .nMw•E wnW u¢ inaNru•, w sw3t Mro s¢ sunaHa Mue a 1H Gr. drb,k..lm W number 3waot n Yx�n.a on H. ounnmr•M In•Lup r•epq• Iurl upar•d rn• W, 1¢lll
1J w kavra Srr.Ha unm,
L0. r.•bMw �tllEtlal..Iivnrnlrw PH wrrmwrr.
IP. M•yEnlnrw. agwlaE Ywn OM¢wrk C.b dMngr dWlplaewab WE• W rr M laws. a ICfi
P.p1d1

3
g
}
3
C
�
s
z �
m =
N
n
O, C
ip o
CS
6
umi a
A a
a
a a
a a
a m
oo m
m m
m m
a m
8
S
-pp-
s
e6
gbg
s m
S
z
o
4

_ Zti x r
Appendix A
Field Sampling Forms
2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO — MONOFILL
LOW FLOW SAMPLING LOG
FIELD PERSONNEL: T4.
fp' a. %
1
',r ,r,Z�.� WEATHER: o suKr� mcwuzT CI wi rnua�T� wrwar f.�5
i H eF.. ay..L S•f. Im NOTES: l
a...er.swc.we+two
01M rilarra.pr.lrtra
rT�Tw•.cwe—
WELL ID: -IM L4_ -L—W PUMPnUBIHG INTAKE DEPTH:
49 1r71
START PURGE TIME: )1(?*
MEASURING POINT: TOC
START PURGE DATE:
T 1
END PURGE T1ML It 6-t,
WELL IXAMETER: 2 r
EHD PURGE DATE
•• I -S� i{
FINAL REARM TL%W-'
WELL DEPTH: 39 m) TOTAL VOLUME PURGED:
S iafa�y'`
DEPTH TO WATER: -16.-38 _frry
SAMPLE DAM
15
SAMPLE COLLECTION /! S„`
PONA METI/DD: ❑rul adlorp ❑ ru12 YDk 7wq
.t
Pwhnlnc Pump
❑ D dk W ►i
O T.Dan lr0w 0 P./,.thylww e.aw
.AMPLE N TILDP• ❑ Gr—dfn Pura ❑ /2 VPk fume
Pwi.bA6c Pump
❑ DNk W Pup
a Teflon l�Hn [] P.N.thylm. wor
*.Too Levu
nowiun'
Trap Wll
DO
eoPouerawe
PH
ODr
ltsamrrr
nAe
_
Irn
I.u.*I
r
PwLI
Iw—o
4.1
P.n
1-14
r ara
I
�uv
r
�-zts
3iy.
G-3
.rla•9
.a.
f,,.i �
b111
It It
f
d6S-0
Sz' 1
1
(s.ye_
2 o.b
30
INS
ZgZ,5
m1 I
3
4.
0
rS
-4b
332-8
.S
Z7b S
/d. L
I1y'3
{B-y%
1 0
fS
1 .9
3z1 ,
3
�G1.�
l!,
fILO
IE, s
tuo
IS'_-.-I•.8.
3i3• .
U.3
zuj.3
{�
ISZ
3,4
Wri
X ?SS.
-,1
ZUfU
(D- 1
■■■■■■■■
■
■
■■■■■■
MEN
Eii
i
ii:iMMM
■■M■■■o■■■o■■■■■■■■
■■■■■os�■■■■■■■tee■■
COMMENTS: FIELD VEHICLE ACCESSIBLE Ey ,YES ❑ NO
A sods m ;mA-6i:a D0. m«iatklry PH wlehri ranyeT (See ahbraefm si1eee fw is 5wv4e Dale) • 0 — H NO, wh10
perametM , NOTE dvt report[d data should De mnsdered .._flagged atmrdHlgiy,
' SynTerr. 1s not HC•certttN:d for Nee parametns. Data co Lected for info maUon p1w90.e1 only --
. Tr0 esDrttTlve awry LOcr w mrralr raa
OOOO (f 11D O � JMO .CIBAD 1 ll a ❑ a O .nrP; iq DODo C7 a�0" 0 soet } mo. -Cl eaD C7 xMc' .
WPmyea Eneryy1026M)MYO KANIM 2014 rid Samctrq MNKAMWELL SAMPLE FURMS(BLA Z)t w Ftw&0*91% Mg1pFLtdot

2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO — MONOFILL
LOW FLOW SAMPLING LOG' 7 41P N1ELD PERSOM7'l/,s:�iEL: T-�..... .. ..�
syhTena WEATHER: [1 ovrsm 0 ,twaewTwet r v. in
,w n.w se..a.,sa. xza NOTES:
pul azra,». MMaN,1,�Ma, Fa '
WELL W. mE,d - 2 KWM TUNNG tHTAKE DEPTH:
J5 --,L P n
START PURGE TIME:
L.:9
M D11G POINT: TOO
START PURGE DATE:
_ _
EwD PURGETIM E:
WELL 04,MlTER 2w
WELL
END PURGE DATE:
FTruL RFALTHG TIME: /3/!
WELL DEPTW TOTAL VOLUME PURGED:
Jr K+ALf
;a
DEPTH TO WATER: �-f I '5f.A PT,
SAMPLE DATE
SAMPLE[alErnow
TIME: /?/ f
PURGE METHOD: fir —on" N ,E YWt P.
❑ PwfitWJc Funp
❑ Dedkand Purr
❑ Taflm laf a G Paryathr,aa. laM.r
SAMPLE A1ETW)D: Mr."" lq ,2 Ytlt"
❑ PsiAWk P—p
❑ D.dk—d 01n9
❑ Tafh- laic[ ❑ P Al.Urpeaa Radar
WAM UL U
PWtW l
TFMKRATIIK
sa
[a,dwTAMC!
Pa
W'
TlMalwr'/•
teat
,Pn
a+A.*"L
rt«w.I
ara
6a'oaA
tw
an
aa„rl
r�
�,
Liz.nt-
p
4.B1
Cr43
,u
Z(D-L,
'}8•r
,Q%
1'{O
tw
GS2.
u
lscP•1-
ZiYA
N
ys.Sl
°Tq
Dr9-LD
41 1
4La4•[P
;&b
S1ay
qo
o
G73
•L
1
z
90
1
U13
7.1
q3.5'
x.0
l4. _.
�a
I
4.Li
R3\
,i
-Lo
15'
q- 2x
I
141.0
CONSTITUENTS SANPIm
NUYBLR
OF CONTAINERS
PRESERYAI,OH.
_
T
l TTALS a MMI:URY It"f
,
-METALS a MERCURY DYtaradl
'r
/ "
cook rot -
TM, CHLORINE, FLUORIDE, SULFATE, NITMTE
,
Pao
COMMENTS: FIELD VEHICLE ACCESSIBLE ❑ YES IRNO
Aswdated mlpdaylCsOd -day DO, ao,dr,d2Wty, pH within rw,gti l5crnlihratlon sleet for N1s sample datel sa O ua If H0, xfikh
ameter '. NOTE that reported data tswtd be mrniderrd as f ac
SynTem k rat NCcertified for these parameten. Rota cdteded for information p'UrpO,d only
YfaLTAO PamTtTTL� I i K co Carrpt,a raa
ooaD I ❑ w o,ro,t E ooaa 1 o m 1 0 Not p(g *M 1 0 am 1 o teat 1 A aoao I Ow 1 n r,aAa JAW00 I 0 am, o apt
2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO - MONOFILL
LOW FLOW SAMPLING LOG
n" PERSONNEL: TEsynJg -
Term
WEATHER: 0 swan jQ oYTRrATT 0 sAa, ,vMraA,rMtpP"W y3
NOTES:
WELL 0: .-3
PUMPRUNHGINTAI[EDEPTH: yt j M, START PURGE MAN- fl45
MEASURING POINT: TOL
START PURGE DATE: ETD PURGE TIME: Y 3 }
WELL DLAMETER: 2 nl
END PURGE DATE: FIMAL R[AawG TINE: I 3 k
WELL DE PT . � 5 _'L,(f MFTM
TOTAL VOLUME PURGED: foul
DEPTH TO WATER: L"' s 1rT,�,
—LE DATE: • .3 f . SAMPLE W LLECntwLw l u 3-•1
PURGE METHOD: ❑ 61-0. ►u �qy it YOR" ❑ MbW.k Pero ❑ D-acw A porm ❑ Tatbr E.Rw ❑ PWy.IGo— B.N.
SAAPLE METHOD•., 0 CrwWfw" [�j f 2 Vok" ❑ ►ww+ k Pwp ❑ Den tvd P—o 0 Tonm la/w 0 PWYMLMww lain
.am Lint
A1lN urz
rzYPQiTlata
o0
onlwKTaarE
- - W -
ow
T rom
- - - —
fm
4-4^ t
rc�
0-ou
&-.I
_
IWt
an
FM
repro
041N5
�4�
1�
I.1
�3E
Y
Li1•L
33S
i
3S8
lfso
l�
f.Dl
2*r.a_3%.L
lylb
.bg
b/
15
—mi
,
P
.Z33.i
2�.3
43.15
Da
+S
. I
y�
.F
2ZI.3-
V� A
I 1._
4-
00
S
2Dq
8
2n1-Z
R_:73
+A,S_
200
15
2 D3
S
-1-b
T. 0 f
3q
-u
I x0aS
2ee•L
5•.53
I
T
,
■■■■®®■■emse®■■■■use
■es■■■■■ss■
o■■■®■eee:
COMMENT•$: FIELD VEHICLE ACMURi P ❑ YES laNO
Assodated middaylend•of-d&f DO; cwmkxt*ky, pH YArhln mnW. (See mllbratfan sheet lor this sample date)Ta CI t D NO, .firs
parameter_. NOTE that reported data VmAd be conskWed m flagged acaordln¢ty, - —
SynTma Is not NC-certtfi d for tl s parameters. Data collected for IOfwmation purposes mly -
w4LTb PaOR[ThS 45M6 1Qa W fY1r[RlTf ,Ap
n aAo T M]MC caoD 0 sAo O wut Daoa O inn n M 1, 1%0000 1 EL w 1 0 NO,Ia cnoo 113 B a O fit'
P'VMgA=Enagy.tO2B05 MAYO PLWMOI. 2Ot4 We'$MnpM7 MarxMWELL SALIFLE FORMS WKWw FhtSo ph9 Log LOK)FILdoc P:MPapraf EMAgy.1D2MJAAY0RAN[YLE.2Dt41WOIS-*& MXMWWELL SAMPLE FORMS (BLANKS" Fb Sar*g Log MONOFEL.dcc

2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO - MONOFILL
47
synTerra
c ,.ar,swln caw,. ]aaR1
Ias.1 /11.MM.lEi.l a1laaay ra
ww,.wwT�r.tsp,aa
LOW FLOW SAMPLING LOG
FIELD PERSONNEL:-rp'��•L - _ .
WEATHER: a,� ovoras, o aaal rDPCMTLRE Vs.I�000=Y3'�
NOTES:
WELL an. kl �j-� mi-PriumG DITAKE DEPTH: tm sTADr PURGETLV.L -1518
MEASURING PONT. TOC START PURGE DATE: � � END PURGE TIME: 153 U
WELL DtAMETEIL• 2. END PURGE DATE: 15 I FINAL REAMG TIME: 157(f
WELL DEPTH: OT) TOTAL VOLUME PURUED:. N4LI,,
OFPTLSTD WATER 'zlr,l SAMPLE DATE; SAMPLE [f]LLE[T10M
3` .4 t n L TIME: LsJl�_
PURGE METHOD: ❑ CrWraa Pultlp- j l T ven Pulp Q prrlspnlc Anp ❑ Dadkaurd Pu P Cl Tattoo Haar [3 Petyath,%- Nita
SAMPLE METHOD: ❑ a.ndfal Prlp�-9 11 yal] P.mp ❑ pafWatdc help ❑ Dadlraad Pump C] T.Np1 M.aar ❑ Palyad y%-b k,
am=
m�
�►
��■as���'®a�®ice!
■iii■■■■RI
■�!i■■■■
iii■■■■■■f0■i0�MEN
iiii■■■itii■oi
■
■■■
MC..■.i0...®■.■■■...
COMMENTS; FIELD VEHICLE ACCESMI ❑ TES $1 NO
Associated mlddayfentl af•day DO, catductMty, pll withil range? (See utlbrstbn sheet Ear th s sample date) o 11n If NO; which
parameter . NOTE that reported data sllputd be tnnsidered m Ragged ..,Ill.
SynTerra it Tat NG[ertified fw West parm m. Data wILected for Nfotmatlon purposes only -
2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO - MONOFILL
LOW FLOW SAMPLING LOG
FIELD PERSONNEL: W
, Terl_L�
�/
WEATHER a 0-0 LY,orolusr a w lryer..,dar 1-9 7�
IN aM.. ar.a,. sw.I20
Gwn,ar, f•� Carau,a t11a1
HOTES:
laall �lty.n .1aa11 all-9rar ro
�rynT.nrvp.c..,
-
WELL R: /AW=S PUMPITUDING INTAKE DEPTH:
Im
SfARTPURGETLME: liflrl .
MEASURMG PIXNT: TOC
START PURGE GATE:
3
END PURGE TLNE:
WELL DIAMETER: 2.
END PURGE DATE:
FINAL READING TIME: LG71
WELL DEPTH: fr3 Im TOTAL
VOWME PURGED:
-SO•
OEITH TO WATER: lAN -
SAMPLE DATE:
! ! 3 !,
SAMPLE CIti 1 F TTKM
IRE- II�SI
PURGE METHOD: O onaldfe. P-.p ❑ 11 volt heap
6Taltic P.np
L] Do~vd P W V
❑ T~ 5,*Uw ij Pely.Inylnw to
SAMPLE MEmoi Q GruMfm Pwrp ❑ 1 E YON hump
Parhrmk PaM
0DP01c W Plaep
❑ T~ I tW _ ❑ Pelyelhylalw Waar
w�Trs uyn
now Pw,T
rerTTu,vP
oo
ceroucraacc
yn
pp:
��,.'
..._
TIKE
rm
Wn o
CC.' l
t+wlLl
IaHwel
1M
om
lw%n
amn
lm">
1 u
- U
Cl-�
3
i
3.2Z
lkkqw
Zo.s'L
o
!
a�5A►.a
5
14S•9
�.
Gig
GS
- oo
14
0."1,
SDI .2_
_}
1V3
t-0,33
eo
fy
8ls
S .q
-191,q
f.n -
■iiii■ii�I
■.Raiiiiii
_
iiiii■iii
■A
■i■ii■i0■�iCI�C�
®®�®
.T,
....■■0■ii�i0ii■iii
■s■il�®i■ii®■ii1iA!■■
COMMENTS: FIELD VEHICLE ACCrUtOLE N YES E7 NO
.Avac tedmWtla_ylmd- •dsy DO; conductwiy, PMwlthln range (See calWatlwl sheet for this Sample NrPjrmo Na. If ND,*I h
parameter - . NOTE that reported dots shwW be canfdm d m ftnied accortftty. -
SynTena t not NC-certlhtd for tr s parameter. Dau mltected for information purpa onty
P,VlaV— Ene9V IMV05. MYC PLAT Ia% Aft Wei S-*q Lt MSWELL SMFLE FORUS MAHtMM Fbr SwOM Log MCOattdee
PWsopaaa EIIa1pT.1D2SDS.MAYO PIAMlTlOM- TOf l was SaapRlE WIdy,WFt1 SAAFL£ FORME {9LANH51Io. Flow gami09 tag Mt_NOFLL.doc

2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO — MONOFILL
LOW FLOW SAMPLING LOG
FIELD PERSONNEL I
sjnTerra
WEATHER; p kNM QFa+r T 0 MIH TLWMTVK IAPrRO[I:
I's -t— 5,—. swla 7]p
p..IN., —..— "Uil
NOTES:: -.
Iwl I=1— -14") .I1-.'W. F.
-
�rr..ynTrtawF.a..,
WELLID; Sy,J�
PUMP/TUBING INTAKE DEPTH: IFTI START PURGE TIME:
MEASURING POINT: TIC
START PURGE D►TE: END PURGETIME:
WILL DIAIAETCR: 21H
END PURGE DATE: FINAL REAgNG TMLE;
WELL DEPTH: cm
TOTAL VOLUME PURGED. [all
DEPTH TO WATER: R-U
SA,AtPLE PATE: SAMPLE COLLECTION
IMEZ r
TW:
pp
PDRrE M£Tt50o: p c—Ww Pump Q 12 volt Plap ❑ P..& Rk Pup ❑ De&.A d FI—P ❑ Tallen ba4ar ❑ PnfyHtryNn. RaRRr �I,
SAMPLE METHOD: ❑ C..wdl.a Pump ❑
12 volt Pump 0 Perlst.ltk Pump ❑ DRdltat.d Pump ❑ T.11- 5.11. ❑ PnlyatH,lano & IIM 0&&l
CONSTITUENTS SAMPLED
NUMUR
OF CONTAR&FIS
PRESERVATION
E I
91
T r
T
V
,•
I IIf
t'
Y
e
METALS R MERCURY ItMal)
1
_
METALS a MERCURY I11Rar.d
1
✓
coo B TOC
t
!
TOS, CHLORIDE, FLGoRIOE, SDLFATE, HITNATEisIxI
-�
COMMDm; PIELD VEHICLE ACCESSIBLE [] YES (1140
ynTerra IS not NC�rttfled for tk x parameters. Data caltected I'm W nnatic
wEll TA0 1 Aat15O:TRi [ASRw LOCI C,SP mwC.ETf AAO
1 i I ! 1 1 I.O.It I WAJ° i .I a
2014 GROUNDWATER MONITORING
DUKE ENERGY PROGRESS, INC
-
MAYO — MONOFILL
LOW FLOW
SAMPLING LOG
FIELD PEASOIHHEL: -r'?'I.��i
` .cz nTeaa,
WEATHER: 0 ttlwrr'*a KR T p UN *f�IFEsarvRt Ie7rRock Y�^
1aa RhwiD'wl. Sun. I]0
h..n.IIL, 5wu tray,. ]aaal
NOTES: — -
Iwl Ill�aP.• INQ IS1-aaa Fa
rrr..Mirrlla.p,.rn
WE'LL ID: Sw . Z PUMP/TUBING
INTAKE DEPTH: Im START RIRf1 TSME:
MEASURING POINT: TOC
START PURGE DATE: — END PURGE TIME:
WELL DIAMETER: 2 m
END PURGE DATE; FINAL AEAoING TUAE: _
WELL DEPTH: Tr)TOTAL VOLUME PURGED: ,wu
DEPTH TO WATER: (Fr)
SAMPLE DATE: SAMPLE COLLECTION TIME: 153 Y
PURGE METHOD: ❑ O-wf 5 Pump ❑ 17 %it Imp
❑ P. Z"k Plop ❑ Dpk..t.tl n.1p ❑ Tey a
n- R.:. ❑ Pnrr y — Ra1NT fkok
SAMPLE MEFIM: ❑ G—Idrw Aunt' © 17 Vet Pun*
6
[I►..HtaRk Pulp i.7 Dadkatad ►u np ❑ Tafldn .n O Aoly.Nyl—eMRN &,2. _,.
■■■■��■��ios■o■■set■■
COMMEMT: FIELD VEHICLE ACCESSIBLE [J YES'P(NO
is mt NC-certttkd fa Chew puametelS. DKp a0cted for Infamatkn purpose anly
wEu TAa � FlmrtcTlr. eATaa j Lou � � ty - � co.luerE .Ap
P.JP Wn Energy 702oft.0MYO PL1N1108. 2014 Wei Samp6q Ma MWELL SAMPLE FORWOM ANKRLm FbR S-ft Lop LK MOFlLLAa PiPropins Enery AMISIM-MAYO PLANrOB_ 2014 Wd Sup" Ma�WELL BAAIPLE FARMS RTIAt KSILm Fbw SNI "Ld0 MMOFLLdx

2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO - MONOFILL
LOW FLOW SAMPLING LOG
PtELD PERSGNNEL• �7"�y�A}.I
STa
v -
WEATHER: G dsr.1oror�sr a wn nwcauuaan.aar.ys°
�i
+.s Rr.w sr.«, frle. tm
MOT[S:
bffrntlY, TrM [rotor tfgt
I.•al w+-..ff . Ir..l Der-r•• rre
WALE? SV-3
ArEAAURAUG POINT: TOC
Kwfr amG INTw DEPTH: Urn
START PURGE DATE:
STARTPUlRGETIME:
t>tD PURGE TMIE
WELL DLAMETER: 2.
END PURGE DATE:
FINAL READING TIME:
WELL DE n� TOTAL VOLUME PURGED' 1
OEM TO WATER:
(M SAMPLE DAT'C
r
SAMPLE COLLECTION
nwia.-
LARGE mmoca: ❑ 0rumgM hum
❑ t 2 YA P%wp ❑ rwWmMc Pup ❑ D•dlcaad Puma
d T.f1an Nair ❑ royNI.,k- a.R- N4
U mpLE acnla0: ❑ aeaedTm h.p
❑ 12 Valt P.V O P rbultk Pup O D.eludd PUMP
O T~ aauar ❑ PnyathYlnx Nnu&Qq�
WEE
■■
■o■
■o..e■m■
COMMENTS; FIELD VEHICLE ACCESSIBLE ❑ YES {ftslo
Associated mlddaylerMl of•day DO cvnduciinty. Dst -thin rsege? (see aItbmtton deeet la this sarrplr di[el TOO ro. tT N0, whkh
�aranleter - .NOTE NAt rtp 4 dau 4nIAd x coalde ed as nagyd ascordYtgly._ — - —
• StmTema I$ not HC• tolled far Nose Wwe.M. Data coil ¢, far nlarmatkn purpme only
2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO - MONOFILL
41,7
synTerra
r.i Mn.r serves, swtr zm
(iN) ♦llwPn. NNI.21-f10. Fu
MrEL.L ID:
MEASLIRIXG POINT: TOC _ WELL DIAMETER ... 2. WELL DEPTH: - Im
DEPTH TO WATER {m
LOW FLOW SAMPLING LOG t
WEATNER; C1 wwy Ll(d tlrrArT O MM TEPM4 JuP 1 6-
H0TES:
PWP/T7ISTA T PUR DATE: IrTI START PURGE TIME:
START PURGE DATE: END PURLS TIAeE:
END PURGE DATE: FINAL READING TOME:
TOTAL VOLLMME PURGED: 14W
SAMPLE DATE: - UMPLE COLLECTION G
TIME.
PURGE METHOD: ❑ trudfm Pump ❑ r r voh Pueq ❑ Perherek Pup ❑ DPdlotr7 Pure 13 T~ arOPr
SAMPLE❑ P.lylteyl•oa Rau.. fi
METHOD: ❑ Grutlew h.rm ❑ 12 v Putrm ❑ P-hbW le P—p ❑ ftlftW d PUrm O Tarl.. e.a« ❑ sey.urN.n• e.twr pg
CORSTMANTS SAMPLED
■e..■.■■ummur■....■
MENEM
^��EfYI �IIEiIYn•y xTT r:ri���■...®��■lowwwwomm
B■■.....
- - -
■■■sreo..o■�e�e■e■■
COMMENTS: FIELD YEHICLE ACCESSIBLE ;O YES ❑ NO
ik^ �� Rt cD..Pr�t1 sptw , ps.„`+ grar,LLM� bL� Gv4�- s�.n_
Assectated midday/ -P Y ba, c"ox-mitt', pH wKhln range? (See a5b atwn sneer for this sample daal ro O too. If N , WhkP
parameter . HOTS V aL reported data thwLd be cm 0dered as Ragged accordhily. _
• SynTerra is not NC-certlfled for Usese parmletm. Data cudmted far tnfM mtkn purposes only
ML TMG
P,.%-WmCrwW.lrAV5.MIeYO PLAlTnM. 2014 Wei Saomhsp Ma DWELL SAMPLE FORMS MLAFMS" Flow Smnft Lcq MONOFLLdoc
PWroprem Em,^/.7016TD myo PtANLm 20H wog So rb AtmwwELL SAAftE F0Fj4 (DLAMSSII m Fran Sw"V Lug 00MOFLLdee

2014 GROUNDWATER MONITORING DUKE ENERGY PROGRESS, INC
MAYO — MONOFILL
1410
synTena
,twi.L,-PEN . {ee.I.t,.PWP ru
a� p
LOW FLOW SAMPLING LOCI
FIELD PERSONNEL• �P11;[i_
WEATHER: (� J� t-- C3 T CI aw Triw umw v r v
Hams:
WELL ID: Y'n IA
4�
!4
PUMPRVISING NTA1Q DEPTH:
Rzl
START PURGE TW&
MEASURING P'OrKr: Tm
START RIRGE DATE:
END PURGE MME,'
WELL DIAMETER: let
END PURGE DATE:
FINAL READ" TIME:
WELL DEPTH:
t[Ts TOTAL VOLUME PURGED:
1TaL1
DEPTH TO WATER:
Err) SAMPLE DATE:
1
y/
SAMPLE COLLECMH 7 r
AIRGE A,E HM7 ❑ fiumlw Pero
❑ 11 VOR" ❑ ►wbbRlc Pure
❑ DPOkOmd Psam
O Tare I& or ❑ Pe1AthElen aeRar
SAVLE METHOD: ❑ orurff. P"
❑ 12 VOR ►wlo ❑ Par1MaRk Punp
O D.Ok.nd herar
❑ Tan- e[Ilw 0 PdrRtMto -BMW
COMMVENTS SAMPLED
INN
ki �wllt
■
o■
■■■■■
■�
�T
iiiii■■os
■■■■■■
COMMENTS: FIELD VEHICLE ACCESSIBLE {] YES ❑ NO
Associated mlddaYleM of daY DO, tnrtatcttAN. PtN mthin nrip cAL&ration 9wet far th% Sample date) 0 rn 0 r N 40,1 kh—
ran,etn .NOTE that data shmid be c idered As naSged wcordVtgty-
$ynTerra knot HC�ertifi d for these parameters. Data Cdtected for infonnatfor, pvpCSP[ Orly
MRL TIG reOTe[Tlre wtw Loci W [OMOST[PA►
0 s000 G eao O MOM[ 0 c 0 w [] Now[ ❑ ame O aae [] MOM[ 0 R E] uo 0— O Sow 0 u O MOM[
P.1Rvgrtw EMtgy.102671 MAYO PLANT0. 2014 WN Swr4 gMa,t>WMU SAMP(E FCRIa(UAW.$" Floe Satphq Log MONOFLLdm

-, ENEGv:
Analytical Laboratory 1of 29
M39 Hagers Ferry Road
Hunter$ville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:9BM75-4349
Order Summary Report
Order Number:
J14100268
Project Name:
MAYO LFGW
customer Nama(s):
J. TOEPFER, T. HUNSUCKER
Custanar Address:
Lab Carus: Jaam C Parkins Phase: 9e0dTS534s
Rapod Arrthorla.d By: - 1 — Date: 12/912014
(Signature) n�
Program Comments:
Please contact the Program M a nage r (Jason C Perkins) with any questions regarding this report
Data Flags A Calculations
Any analytical tests or individual analyses within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor reWts can be found in the
subcontracted lab final repot Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described In this narrative. An estimation of
the uncertainty of measurement for the results In the report Is available upon request This report shall not be reproduced. except
In full, without the written consent of the Analybeel Laboratory. Please contact the Analytical laboratorywlth any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample WerYitrcation. Technical Validation of Data Package, Anao al Laboratory Cori+firate ofAnaysis,
Analytical Laboratory QC Reports, Laboratory Results, Customer Speafrc Data Sheels, Reports 8
Documenialion, Customer Database Entries, Test Case Narralives, Chain at Custody (COC)
CerUflcatlon:
The Analytical Laboratory holds the foMewing State Certifications : North Carolina (DENR) Certificate #248, South Carolina
(OHEC) Laboratory ID # 99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.
Sample ID's & Descriptions:
20128
Sample ID
PhatUSlalian
caklcnon
04h and Tire.
Call.clad By
Sample Oesedp0m
2014029400
MAYO STEAM
13-Nov-14 I t52 AM
Tadd PYawv
MW-1
2014029401
MAYO STEAM
13-Nov-14 1:19 PM
Todd Plating
MW-2
2014029402
MAYO STEAM
13-Nor-14 2:37 PM
Todd Pi tirp
MW-3
2014029403
MAYOSTEAM
134Jov-14 3:36 PM
MW-4
2014029404
MAYOSTFAM
13Nar14 4:31 PM
MW-5
2014029405
MAYOSTEAM
13•N-14 11:25 AM
Todd Platting
SW-1
2014029406
MAYO STEAM
13-Nov-14 3:34 PM
Todd Plating
SW-2
2014029407
MAYO STEAM
- 131,1ow14 2:20 PM
Todd Plating
SW-3
2014029408
MAYO STEAM
13-Nar-14 2:37 PM
Todd Plating
DUP MW 3
2014029400
MAYO STEAM
13-Now14 2:40 PM
Todd Platig
HELD BLANK
2014032040
MAYOSTEAM
13-Nar14 5:00 PM
Todd Plating
Ll
11 Tonal Samples

Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals Yea No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. Yea No
AI( laboratory QAIQC requirements are acceptable. Yes ❑ No
Report Sections Included:
Job Summary Report
N❑Sampk Ida bficabOn
Fel Technical Validation of Data Package
F' Analyliral Laboratory Cerdr-1e of Aralyais
❑ Alr M"I Laboratory a Report
Row-d By: D$A Account
3 of 20
✓• Sub-c ntreGed Laboratory ReauOa
❑ Customer Specific Dots Shseb, Repwta, & Documemat'on
❑ Customer Database Entries
W' Chain of Custody
P1 Elodmi Data Deliverable (EDD) Sere Separatei
Dale: 12/9/2014
Certificate of Laboratory Analysis 4Of28
This report shall not be reproduced, except in fug.
Order# J14100268
Site: MW-1
Collection Date: 13-Nov 14 11:52 AM
Sample#:
Matrix:
2014029400
GW W W
Analyts
Rsautt
Unhe
Qualifiers RDL
DF
M.th d
Anatysls DatNTlms
Ana"t
INORGANIC IONS BY IC
Chb.de
15
mg1t.
0.5
5
EPA 300.0
1V14t201417:39
BON9034
Fluoride
0.15
mg/L
0.1
1
EPA 300.0
1101$2014 17:39
OGNP034
NIIrate
0.3
MOIL
0.1
1
EPA 300.0
11114r2014 17:39
BGN9034
N4rste asN
1.D
m9-N1L
0023
1
EPA 300.0
11014201417:30
RGN9034
Sutlaia
20
-9&
0.5
5
EPA 300.0
110142014 17:39
BGND034
MERCURY f W LD VAP0R7 IN
WATER
Merorry {Hg)
0.05
uglL
006
1
EPA 245.1
1 V212014 13:15
DNJOHN2
TOTAL RECOVERABLE METALS
BY ICP
Badum (Be)
0.177
mg4
0.005
1
EPA 200.7
12104/2014 11:22
VHH7131
Boron (B)
.010
mg1L
a 0.5
1
EPA 2W.7
1210412014 11:22
MHH7131
Chromium (Cr)
< 0.005
m91L
0,005
1
EPA 200.7
121f1412014 11:22
MHH7131
Copper (Cu)
< 0.005
mg&
0.005
1
EPA 200.7
12/04/2014 11:22
MHH7131
trap (Fe)
0.619
m91L
0,01
1
EPA 200.7
12104,2014 11,22
MHH7131
Varrganese (Mn)
0.022
m9k
0.005
1
EPA 200.7
12/04/2014 1112
MHH713 i
Nickel (M)
< 0-OOS
m91L
0,005
1
EPA 200.7
1Z Wr2014 11:22
MHH7131
S2xr(Ag)
<0.005
-g1L
0005
1
EPA 200.7
12104=141112
MHH7131
Zinc (Zn)
0.012
nWL
B 0.OD5
1
EPA 200.7
12/O412014 11:22
MHH7131
TOTAL RECOVERABLE METALS
BY ICP-MS
Arsenic (AS)
.1
u911.
1
1
EPA 2008
112D21)14 12:24
DJSULLi
Cadmium (Cd)
c 1
ug1L
1
1
EPA 200,8
112092014 12:24
DJSULLI
Lead (Pb)
a 1
ug1L
1
1
EPA 200.a
112D2014 12'.24
DJSULLi
Solanlum (Se)
.1
uglL
1
1
EPA 2W.8
il20r2014 12:24
OJSULLI
TDS 220 mg4 25 1 SW540C 1111 a201414:21 GHUTCHI

Certificate of Laboratory Analysis Sa1ze
This report shaff not be reproduced, except in full.
Order # J14100268
Certificate of Laboratory Analysis aof28
This report shaf! not be reproduced, except in U.
Order# J14100268
Site: 7o W-2
Sample #:
2014029401
Site: MW-3
Sample #:
20140294U2
Collection Date: 13NDr14 1:19 PM
Matrix:
GW_WW
Collection Date: 13-ND -14 237 PM
Matrix:
GW_WW
Ana"
Rasuh
Unha
QuaIIllam ROL
OF
Method
Aadpais Dat*M-
Ana"
A""
R*-It
Unit
OualNMan ROL
OF
Method
Anaysia OatatTlma
Anelpal
INORGANIC IONS BY IC
INORGANIC IONS BY IC
CNodde
48
m911-
1
10
EPA 300 0
1 V1412014 17:50
BGN0034
Chladde
as
m911.
2
20
EPA 300.0
11114rl014 18:14
BON9034
Fhtodde
0.23
m9a
0.1
1
EPA 300.0
11114r2014 Ilse
RGN9034
Fluoride
0.30
mgrL
0.1
1
EPA 3000
1111412014 M14
BGN9W4
Nitrate
< 0.1
mgr.
D.1
I
EPA 300_a
1 V1412014 17:56
BGN90M
Nitrate
c 0.1
m9ft
0.1
1
EPA 300.0
1 ill 412014 18:14
BGN0034
Nitrate as N
< 0.023
rr VNIL
0,023
t
EPA 300.0
111142014 17.511
BGN90M
144rete as N
< 0.023
mg-N1L
am3
1
EPA 300 0
1111412014 18:14
BGN9034
Sulfate
34
nWL
1
t0
EPA 300.0
1111420t4 17:50
BGNDM4
Sulfate
1a
mg'L
0.5
5
EPA 300.0
11114=14 18:14
BON9034
MERCURY (COLD VAPORI IN WATER
MERCURY (COLD VAPORI IN WATER
Memory (Hg)
c 0.05
ugk
0,05
1
EPA 2461
12/022014 11:15
DKJOHN2
Mercury (Hg)
c 0.05
U91L
005
1
EPA 245.1
12A212014 1110
OKJOHN2
TOTAL RECOVERABLE METALS BY ICP
TOTAL RECOVERABLE METALS BY ICP
Rsnum (Be)
0.03a
0,91E
0005
1
EPA 200.7
12104=4 11:34
MHH7131
aerum (Ba)
M17li
-9rL
0.005
1
EPA 200.7
IZD412014 11:38
WH7131
Baron (B)
c 0.05
m9rL
0.05
1
LPA 200.7
12MM014 11:34
MHH7131
Baron (BI
-0.05
mglL
0.05
1
EPA 200.7
12N42014 11:38
MHH7131
Chmm'mm (Cr)
< 0.o05
m91
0.005
1
EPA 2DO.7
I ZIDWO14 11.34
MHH7131
Chromium (Cr)
-0.005
mgrL
D MS
1
EPA 2W 7
121041=4 11:38
MHH7131
Capper (Cu)
< 0.005
mWL
0.005
1
EPA 2D0.7
12A412014 11:34
MHH7131
Copper (Cu)
-0.005
mSiL
0,005
1
EPA 200.7
12/042014 11:38
MHH7131
Imn (Fe)
0.229
mgrL
0.01
1
EPA 200.7
12A42nl4 11-34
MHH7131
Imn (Fe)
0,240
mgfL
001
1
EPA 2W 7
12AA12014 11:38
MHH7131
MarKpnana (Mn)
0.038
MgrL
0.005
1
EPA 200.7
12AM12014 11:34
MHH7131
Manganese (Mn)
0,038
m9k
0.005
1
EPA 200.7
12A 47014 11:33
MHH7131
NickeI(Ni)
<0,005
m91L
0.005
1
EPA 200.7
12N4201411:34
1.WH7131
Nldd(M)
<0.003
mg/L
0005
1
EPA 2D0.7
12AM=1411:3B
MHH7131
61- (Ag)
c 0.005
mgrL
0.005
1
EPA 2W.7
12M412014 11:34
MHH7131
SI-r (Ag)
c 0.003
mqfL
O.OD5
1
EPA 200.7
12A42014 11:35
MHH7131
Zinc (2n)
0.052
mgrL
B 0.D05
1
EPA 200.1
12A412014 11:34
MHH7131
Zinc (Zn)
0.035
MGfL
R 0,005
1
EPA 200,7
12A42014 11:38
MHH7131
TOTAL RECOVERABLE METALS BY
ICPadS
TOTAL. RECOVERABLE METALS BY
ICF2M.§
Arsenic (As)
< 1
W&
1
1
EPA 200.E
1120'2014 12:35
DJSULLi
AM019C (As)
.1
ugrL
1
1
EPA 200,E
11M Y2014 12:30
DJSULLI
Cadmium (Cd)
c 1
WIL
1
1
EPA 2013.8
1120'2014 12:35
DJSULLI
Cadmium (Cd)
.1
uryL
1
1
EPA 200.e
WM014 12:39
DJSULLI
Lead (Pb)
c 1
u9R
1
1
EPA 200,8
11MOr2014 12:35
DJSULLi
Lead(Pb)
.1
u9&
1
1
EPA 200.8
11120M014 12.39
DJSULLI
Selenium (Se)
c 1
U91L
1
I
EPA 200.8
111202014 12:35
DJSULLI
Selenium (Se)
c 1
L-it
1
1
EPA 200.8
1120'2014 17'39
DJSULLI
TDS
410
m91L
25
1
SM254DC
1111WO1414,21
GFe7TCHI
TOTAL DISSOLVED SOLIDS
TDS
430
"It
25
1
SW540C
111181201414:21
GHUTCHI

Certificate of Laboratory Analysis 7of 28
This report shall not be reproduced, except in full.
Order # J14100268
Site: MWrl
Collection Date: 13-Nou14 3:36 PM
Sample#:
Mat(W
2014029403
Gw W W
A-"
Reautt
Untta
OualJflera ROL
OF
Wtftod
A-tpla Da 7l-
Arra"
INORGANIC tONS BY IC
Chloride
65
mg1L
2
20
EPA 300.0
11114/2014 18:31
BON9034
Fluoride
0.20
mg1L
0.1
1
EPA 300.D
1101412014 18:31
BGN9034
NAMt.
0.14
mg1L
0.1
1
EPA 300.0
11/1412014 18:31
BON9034
Nitrate ea
0.03
MWN1L
0023
1
EPA 3009
IIJ74201410731
BGNW34
Sulfate
94
mglL
2
20
EPA 300.0
10142014 18:31
BGN9034
MERCURY ICOLO_VAPOR) IN WATER
Mercury(HU)
.0,05
ug&
D.DS
1
EPA 245.1
12102201411:22
DKJOHN2
TOTAL RECOVERABLE METALS BY ICP
Bam1m (Ba)
0247
nrgrL
0.005
t
EPA 200.7
12/04)201411.42
MHH7t31
Bann (B)
4 0.05
-A
0-05
1
EPA 200.7
121042014 11:42
MHH7131
Chromium (Cr)
-0.005
mg1L
0,005
1
EPA 200.7
1 VO4)2014 11-42
MHH7131
copper(Cu)
<0.005
mWL
D-D05
1
EPA 200.7
121041201411:42
MHH7131
Iron (Fe)
0.097
mgr-
0.01
1
EPA 200.1
1=0201411-42
MHH7131
Marrgsrvoie (Mn)
0.951
-(A
0-005
1
EPA 200.7
12104/2014 11:42
MHH7131
Nickel lM)
-0.005
mg/L
0.005
1
EPA 200.7
12/002014 11-42
MHH7131
S wr (Ag)
K 0.005
mgr-
0005
1
EPA 200.7
121D4)2014 11:42
MHH7131
Zinc (Zn)
0.08a
mg4
B 0.005
1
EPA 200.7
12/0412014 11:42
MHH7131
TOTAL RECOVERABLP METALS BY
ICP-145
A-mi. (Aa)
c 1
uD&
1
1
EPA 200,8
1112Q'2014 12:42
DJSl1LL1
Cadmium (0d)
.1
u9L
1
1
EPA 2W 8
112012014 12:42
OJSULL7
Lead (Pb)
c1
ugl-
1
1
EPA 2D0-8
11r2052C1412:42
UJSULL1
Selenium (Se)
.1
ugL
1
1
EPA 200.8
1 V=2014 12.42
DJSULL7
TDS 390 m94 25 1 5M2540C 1111 M141421 GHLJTCHt
Certificate of Laboratory Analysis an+25
This report shall not be reproduced, except in lull.
Order # J14100268
Site: MW-5
Sample #:
2014029404
Collaction Date: 13,NO,14 4:31 PM
Matrix:
GW_WW
An."
Raaott
I.I.K. Q-011hi a
ROL
OF
Method
Au"hi D&WEEl-
Arlin[
INORGANIC IONS BY IC
Chloride
10
mg1L
02
2
EPA 30D.0
111142014 10:29
BGN9034
Fluoride
0.27
mg1L
0.1
1
EPA 300.0
11114=14 16'.29
DGN9034
NarMe
<0,1
mg+L
0.1
1
EPA 300.0
11114/20141629
BGN9034
Nitrate sa N
c 0.023
mg�N1L
0023
1
EPA 300 G
1111WO14 16:29
BGN9034
Sulfate
13
mgAL
02
2
EPA 300.0
111142014 10:20
BGN9034
MERCURY (COLD VAPOR)
IN WATER
Mercury(Hg)
-0.05
ug1L
0-06
1
EPA 245.1
1 Z1021201411:25
DKJOHN2
TOTAL RECOVERABLE METALS BY ICP
Rarkrm (Ba)
a,00e
mglL
Baas (B)
- 0.05
m9IL
Chromium (Cr)
4 O.D05
mgtL
Capper (Cu)
0.005
mg1L
Iron (Fe)
0.050
mjL
Mangenex(Mn)
0.034
mgrL
NOA (Mi)
s 0.005
mgrL
SO-(Ag)
<0.005
mWL
Zinc (Zn)
< 0.005
mglL
TOTAL RECOVERABLE
METALS BY ICP44S
Arsenlc (As)
< 1
u9L
Cadmium (Cd)
� 1
ug4
Lead (Ph)
t 1
U91L
Selerikim (Se)
K 1
ug4
TOS 330 mg -
0.005 1
0,05 1
0005 1
0.005 1
001 1
0.005 1
0005 1
0,005 1
0,C05 I
EPA 200.7
EPA 200.7
EPA 200 7
EPA 200,7
EPA 2W.7
EPA 200.7
EPA 20a.7
LEA 200,7
EPA 2607
1 1 EPA 200,E
1 1 EPA 200.8
1 1 EPA 200.0
1 1 EPA 200.8
25 1 SW54DC
121041201411:46 MHH7131
I ZM41201411:40 MHH7131
1V 201411:46 MHH7131
12JO41201411:4e MHH7131
12JO41201411.48 MHH7131
121042014 1 t:46 MHH7131
12JO412014 1 i:49 MHH7131
12JD4201411'46 MHH7131
1210412014 11:46 MHH7131
I I20201412.:46 DJSLAL1
11120r20141246 DJSLILLI
112=0141249 11.1SULL1
IM 201412:46 DJSULLI
111182014l1421 GHUTCHI

Certificate of Laboratory Analysis get 26
This report shelf not be reproduced, except in iulf.
Order# J14100268
Certificate of Laboratory Analysis 10 of 26
This report shall not be reproduced, except in NO.
Order # J14100268
Site: SW-1
Sample#:
2014029405
Site: SW-2
SamDlep:
2014029406
CdlectiOn Data: 13Nov14 1125AM
Matrix:
GW WW
Collection Date: 13-14 w14 3:34 PM
Mattis:
GW WW
Ans"
Remit
Unks,
0i"Mlars ROL
OF
Mathed
Anstpis Daldnave
Ara"
Am"
Remit
U-N.
0us11rara ROL
OF
Method
An."I. Det rrlme
Ana"
IHORGANIQ IONS @X IC
INORGANIC ION9 BY
IC
Chloride
5A
mg1L
0.1
1
EPA 300,0
1 V1412014 16:12
BGN0034
Chloride
7.4
mgrL
0,1
1
EPA 300.0
11114r2014 16:47
BGN9034
Fluoride
0.10
mgL
0.1
1
EPA 300.0
11/142014 1632
BGN0034
Ruodde
0.13
m91L
0.1
1
EPA 300,0
11/1412014 16.AT
DGN9034
Nitrate
0,36
mWL
0,1
1
EPA 300.0
111102014 16:12
OGN9034
Nitrate
.0.1
mg(L
0.1
1
EPA 300.0
1111V2014 16:47
BGN9034
Ntmte as N
0.08
m¢411L
0.023
1
EPA 300.0
111142014 18:12
BGN0034
Nitrate as N
-0.023
mg-N7L
0.023
1
EPA 300.0
1 V142014 16,47
BGN9034
Sulfato
4.1
mg1L
0.1
1
EPA 300.0
111142014 16:12
BGN0034
Sulfate
9.5
mg1L
0.1
1
EPA 300.0
11H42DI4 1647
BGN9034
MERCURY (COLD VAPOR)
IN WATER
MERCURY (COLD VAPOR)
IN WATER
Mercury (Hg)
c 005
ug&
0.05
1
EPA 245,1
12X=Oi4 11:27
DKJOHN2
Memory (W
c 0.05
u91L
0-05
1
EPA 245,1
121022014 1129
DKJOHN2
TOTAL RECOVERABLE METALS BY ICP
TOTAL RECOVERABLE METALS BY ICP
Barium (8e)
0.053
mg4
0.005
1
EPA 200.7
12AMM14 11:51
MHH7131
Barium (Be)
0.025
mg1L
0.005
1
EPA 200.7
1210412D14 11:59
MHH7131
Bara6(8)
c6.05
mgrL
0.05
1
EPA 200,7
1ZM44701411:51
MHH7131
Domn(B)
.0.05
m91L
0.05
1
EPA 200.7
12JD4201411:59
MHH7131
Chromium(Cr)
c0.005
Mort-
0.005
1
EPA 200.7
12/0412D1411:51
MHH70i
Chromium(Cr)
40.005
MOIL
0005
1
EPA 200-7
12fO412014 11 '59
MHH7131
Copper (CO
0.005
m911-
0.005
1
EPA 200.7
1 V 2014 1 t:51
kaHH7131
Copper (04
-0.005
m97L
0 OD5
1
EPA 200.7
12/042D74 11:59
WiH7131
Imn (Fe)
1.20
mg1L
0.01
1
EPA 200.7
121D4t2014 11:51
MHH7131
Iran (Fe)
0.356
mg1L
001
1
EPA 200.7
12m42014 11:59
MHH7131
W%wriese(M.)
0.3ls8
mVt.
0005
1
EPA 200,7
1ZM4r2014 1t:51
MHHM7
Marxprneae(Mn)
0.022
m9tL
0OD5
1
EPA 200.7
12104201411:59
UHH7131
Nickel (NI)
-0.005
mg1L
0.005
1
EPA 200.7
12/0412014 11:51
MHH7131
Nickel (M)
-0.005
mg4
O.D05
1
EPA 200.7
127 4=14 11:59
MHH7131
Si(Ag)
.0.005
mWL
0005
1
EPA 2007
12M41201411 51
MHH7131
Sl-(AU)
50.006
m91L
0,005
1
EPA 2DO.7
1N042014 It 59
MHH7131
Zinc (Zn)
0.003
MOIL
B 0.005
1
EPA 200.7
12/04r2014 11:51
MHH7131
Zinc (Zn)
. MOOS
mg4
0,005
1
EPA 200.7
12N4r2014 1160
MHH7131
TOTAL RECOVE_RA@Lt
METALS BY ICP-MS
TOTAL RECOVERABLE
METALS BY ICP-MS
Arsenic (As)
. 1
u91L
1
1
EPA 200.0
112P2g14 12:49
DJSLILL1
Asenc (As)
. 1
ugli
1
1
EPA 200.8
11202014 1253
DJSULLI
Cadmium (Cd)
. 1
ug1L
1
1
EPA 200.E
120W14 12:49
DJSLILLI
Cadmium 1Cd)
4 1
ugiL
1
1
EPA 200-8
1 V202014 12:53
DJSLILLI
Lead (Pb)
c1
W&
1
1
EPA 200.E
IIMY201412:49
DJSLL.L1
Lead (Pb)
ct
ug1L
1
1
EPA 2D0.8
112020141253
DJSL)Ltl
Saleroom (Se)
. 1
UA
1
1
EPA 200.8
11r202014 12:49
D,ISL5.L7
Selenium (Se)
c 1
erg&
1
I
EPA 200.8
11202014 12:53
DJSVLLI
TOTAL DI380LVgfSGuos
TDS
ISO
mG&
25
1
SM254OC
1111QT01411:41
GHUTCHI
TOTAL DISSOLVED
TO8
SOLIDS
100
mgrL
25
1
SM2540C
11011112014 11:41
GHLITCHI

Certificate of Laboratory Analysis 11 ol2e
This report shall not be reproduced, except in fuY
Order # J14100268
Site: SW-3
Collection Dale: 13-Nov 1a 2:20 PM
SamDle#:
Matnx:
2D14029407
GW WW
An*"
Result
Units
Qua1ffiers ROL
DF
Method
Ana"is Det*Mme
Analyst
INORGANIC IONS BY
IC
CNod7e
7.2
mg1L
GA
I
EPA 300-0
111142014 17:04
BGN9034
Fluoride
0.12
mg1L
0.1
1
EPA 300.0
1111412014 17:04
BON0034
Nast.
<0.1
mg1L
0.1
1
EPA 30D.0
11/14201417:04
BGN90M
Ntrale as N
0.023
rrr9{4&
0.023
1
EPA 300.0
1 /1142014 17:04
BGN9034
Sulfate
8.7
mg&
0_1
1
EPA 300.0
111142014 17:04
BGN9034
MERCURY iCOL.D VAPOR)
rN WATER
Mercury (Hg)
-0.05
u91L
0.05
1
EPA 245.1
12/0212014 11.44
DKJOHN2
TOTAL RECOVERABLE METALS BY ICP
Barium (Be)
0.1136
mg/L
0.005
1
EPA 2W.7
lZG412014 12:28
MHH7131
Bow (B)
�D.05
mg/L
0.05
1
EPA 200.7
12I041201412:28
MHH7131
Ghrornian (Cr)
.0.008
mg1L
O.OD5
1
EPA 200.7
12104r2014 12:20
MHH7131
Copper (Cu)
<0.005
mg/L
0.005
1
EPA 200.7
12/DN201412:28
MHH7131
Iron (Fe)
0.4953
mgtL
001
1
EPA 200.7
12*412014 12:28
MHH7131
MelWn (Mn)
D.004
M91L
0.005
1
EPA 200.7
12104201412:28
MHH7131
Nickel (Ni)
<0,003
mg1L
0005
1
EPA 2DO.7
12ID4201412:28
MHH7131
Suer(Ag)
<0.005
mgrL
0.005
1
EPA 200.7
t2104120141228
MHH7131
Zinc (Zr,)
0.009
mgL
B 0.005
1
EPA Zoo 7
12JO412014 17 25
MHH7131
TOTAL RECOVERABLE
METALS BY ICP-MS
Arsenic (A3)
< 1
ugL
t
1
EPA 200.8
1120MM4 13:18
DJSLPLL7
Cadmium (Cd)
.1
ugL
I
1
EPA 200.0
111202014 13:18
DJSULL7
Led (Pt.)
< 1
ugL
1
1
EPA 200.8
112012014 13:18
DJSt1LL1
Selenium (Se)
.1
ugL
1
1
EPA 200.a
1202014 13:18
DJSULL7
Certificate of Laboratory Analysis 120128
This report shall not be reproduced, except in hill
Order # A 4100268
Site: ❑l1P MW 3 SamDle #: 201402SOB
Collection Date: 13-N0w14 2:37 PM Matrix: GW WW
Am"
Result
Units
Qualifiers RDL
DF
Mathod
Anslyels Dat&M-
Analyst
INORGANIC IONS BY IC
Chloride
as
-WL
2
20
EPA 30D.0
111142014 18:48
BGN9034
Fluoride
0.30
mglt
0.1
1
EPA 300.0
111142014 18:48
BGNOD4
Ntrale
<0.1
mg1L
0.1
1
EPA 300.0
111t4201418:48
BGNG034
Ntrste a.N
<0.023
mg-N1L
0.023
1
EPA 300.0
11114t201418:48
BGNOD34
Sulfate
1s
mg1L
0.5
5
EPA 300.0
1W 4201416:48
BGND034
MERCURY (COLD VAPORI IN
WATER
Mowry (Hg)
< 0.05
ug1L
0.05
1
EPA 245.1
1210212014 11:37
❑KJOHN2
TOTAL RECOVERABLE METALS BY ICP
Barium (Be)
0.175
mg1L
0.005
1
EPA 2DO.7
12O412014 12:03
MHH7131
Boron (B)
< 0.05
mg/L
0_05
1
EPA 2W7
12/0412014 12:03
MHH7131
Chromium (Cr)
< 0.005
m01L
0,005
1
EPA 200.7
121042014 12:03
MHH7131
Copper(C.)
<0.005
mg7L
0,005
1
EPA 2007
12O41201412:03
MHH7131
Iron (Fe)
0.139
nrg/L
0.01
1
EPA 200.7
12AM12014 12:03
MHH7131
Mangsnese(Mn)
0.025
mglL
0,D05
1
EPA 200.7
121041201412:03
MHH7131
N"d(NI)
<0.005
mg/L
0.005
1
EPA 200.7
121041201412:03
MHH7131
Sier(Ail)
<0.005
MOIL
0,005
1
EPA 2W7
12/041201412:03
MHH7131
Zino(Zn)
0.032
mg1L
B 0,005
1
EPA 2D07
lZNM201412:03
MHi-imi
TOTAL RECOVERABLE METALS
BY MEWS
Arsenic (As)
<1
ugtL
1
1
EPA 200,0
112012014 12M
DJSl/LL1
Cadmium (Cd)
< 1
ugtL
1
1
EPA 200.8
112012014 12:58
DJSULL7
Load (Pb)
< 1
ug&
1
1
EPA 200.8
11202014 12:56
DJSLRL7
Selewm 15e)
< 1
ug -
1
1
EPA 200.8
11202014 12.50
DJSULLI
TDS Ito mgL 25 t SM2540C 1 111OW14 11-41 GFOITCHI TDS 420 MWL 25 1 swmuC 11119001411-41 GHUTCHI

Certificate of Laboratory Analysis 13 of 28
This report shall not be reproduced, except in fuR.
Order # J14100268
Certificate of Laboratory Analysis 14 e(28
This report shall not he reproduced, except in fug.
Order # J14100268
Site: FIELD BLANK
Sample 8:
2014029409
Site: L7
Sample N:
2014032048
Collection Date: 13-NOw14 2:40 PM
Matrix:
GW WW
Collection Date: 13dkov 14
5:00 PM
Matrix:
GW WW
Ana"
Rasuh
Units
Gualftm ROL
OF
Method
Analyst. DaWnma
Ann"
Anatyle
R.-It
UnRs
Cluall lab. ROL
OF
Method
Anay.is Oat.M-
Analyst
INORGANIC IONS BY IC
INORGANIC IONS BY IC
Chloride
c 0.1
mgfL
0.1
1
EPA 300.0
11/14(2014 11:t4
OGN9034
Chloride
0.42
mg'L
0.1
1
EPA 3W.0
I If1 U2014 19:23
DGN9034
FI-W.
c 0.1
mg1L
0.1
1
EPA 300.0
111`1412014 11:14
BGN9034
Fluoride
c 0.1
mg1L
0.1
1
EPA 300,a
111142014 1923
BGN9034
Nitrate
-0.1
MOIL
0.1
1
EPA 3000
111"1412014 11:14
BGN9C34
Nitrate
2.9
mglL
0.1
1
EPA 300.0
1111412D14 19:23
BGN9034
Waite as N
c 0,023
mg-mn-
0 023
1
EPA 300.0
11f1412014 t 1:14
BG89034
Nitrate as N
0,65
mg -NIL
0.023
1
EPA 300.0
111142014 t923
DGN9034
S0.1.
c 0A
mglL
0.1
1
EPA 300.0
1101412014 11:14
DGN90, 4
Sunate
1.8
mg1L
0l
I
EPA 300.0
11114=14 19:23
BGN90M
MERCURY (COLD VAPORI IN WATER
MERCURY fCOLD VAPORI IN WATER
tilarar7(Hg)
<0.05
ugA
0,05
1
EPA 245.1
12M=01411:48
OKJOHN2
Manvny(Hg)
<0.05
rgfL
0,05
1
EPA 245T
121=014 tt:45
DKI01-1112
TOTAL RECOVERABLE METALS BY PCP
TOTAL RECOVERABLE METALS BY ICP
Badum (Ba)
-0.005
mg1L
0.005
1
EPA 200.7
121944-2014 12:07
MHH7131
Barium (Be)
0.000
mg4
0005
1
EPA 200.7
12J042014 t2:11
MHH7131
130mn (B)
< 0.05
m94
0.05
1
EPA 200.7
12N412014 12 07
MHH7131
Boma (a)
-0.05
mg1L
D,05
1
EPA 2W 7
12f042014 12:11
MHH7131
chroMian(Cr)
c0.005
Mg'=
oom
1
EPA 200L7
IZM4r2014 t207
WH7131
Chromium(Cr)
<0.005
MOIL
0.005
I
EPA 200.7
12A 201412:11
MHH713i
Copper (Cu)
< 0.005
mglL
0,005
1
EPA 2001
12J0412014 12:07
MHH7131
Copper (Cu)
-0.005
mgk
(.D05
i
EPA 200.7
12N42014 12:11
MHH713l
Iron 1Fe)
c 0.01
mgrl.
0.01
1
EPA 200.7
12f642014 1207
MHH7131
Iron (Fe)
0.023
mg1L
0.01
1
EPA 200.7
12f 2014 12:11
MHH7131
Ma ga a (Mn)
<0.005
mgA-
0005
I
EPA 2001
121642014 1207
MHH7131
Manganese (Mn)
-0.005
M9&
0.DD5
1
EPA 200.7
12N42014 12:11
MHH7131
Nickel (Ni)
c 0.005
mglL
0,005
1
EPA 200-7
12MV2014 12:07
MHH7131
Nkkal (Nit)
< 0.005
mglL
0.DO5
1
EPA 200.7
12M4r2014 12: t t
MHH7131
Sher(Ag)
-0.005
mgrL
0.0M
1
EPA 200.7
12MW2014 12.07
MHH7131
S1wr (Ag)
-0.005
mgrL
0.005
1
EPA 200.7
12JO412014 12:11
MHH7131
Zinc (Zn)
0.013
mgrL
B 0.005
1
EPA 2001
12M412044 12:07
MHH7131
Zlm (Zn)
0.013
mg1L
B a 9p5
1
EPA 2W.7
12M412014 12:1: t
MHH7131
TOTAL RECOVERABLE METALS
BY ICP•MS
TOTAL RECOVERABLE METALS
BY ICP-MS
Arsenic (As)
< I
ugrL
I
I
EPA 200.8
112(2014 13A4
13JSLJLLI
A- (As)
6.51
ug1L
1
1
EPA 200.8
111207014 1,300
OJSULLt
Cadmium (C(l)
< I
ug1L
1
1
EPA 200-8
112t 20t4 13.04
OJSULLI
Cadmium (CC)
< 1
u9A-
1
1
EPA 2W 8
11/20'2014 13,00
D,ISULLt
Lead(Pb)
cI
ugL
1
1
EPA 200.8
1lr2C20141304
WSLXLI
Land (Pb)
<I
ugfL
I
1
EPA 2W8
1120201413:00
DJSVLLI
selerdum (Se)
< 1
ug&
1
1
EPA 2Wa
112(2014 13:04
WSULLI
Salenilm (SO)
4 1
Ig&
1
1
EPA 200.8
111202014 13.00
DJSl1LL1
TOS
c25
m91L
25
1
SLI2540C
Ith W201411A1
GHBTCHI
TOTAL D133OLVED SOLIDS
TOS
,
52
mgrL
25
1
SW54M
1 11%201411:41
GHUTCHI
Qualifiers:
B Target anslyle deteded in method blank at a abets the reporting limo. Target enayte canceraratm in
mmpie is Inss than t OX the eon Mretion in the method blank. Anayte mn0entration In sample i-ld be
duo to contamination_

Certificate of Laboratory Analysis 15 of 211
This report shall not be reproduced, except in full.
Order# J14100268
Level 11 QC Summary
Q14110302 COD CIIEJI ICAL OXYGEN DES41\D
Blank # 1
Parameler
kyasured
F 1rel
Unft.
Pi
fQL Rotative
Co-Wratun
ouafifiar
COD
1.17
mgr-
1
20
12 RDL
-
Blank # 1
Pammeler
Measured
F'rml
I�nils.
2
RDL Relathe
Coral.[..
Quelfirer
COD
3.16
mg&
1
20
RDL
-
IS # 1
Parameter
Measured
Final
UmAL,
DJ
Seike %Recelery
LrL
USL
O-lifie
COD
104
-91
1
20
81.4
ISD # 1
PemmelerMe,5ured
Final
Units;
!L
E214 %-BeooKry
LQL
=
BM
OuelEer
CA) 0
17A
MWL
1
20
84.7
3.97
-
IS #2
Parameter
Measured
Final
Unrim
91
`y ilLke %
Recovery
1.91
5&L
Ouelifier
COD
43.4
mglL
1
2D
101
-
ISD # 2
Pemmeter
4 s rw
FI-I
QaftE
Dd
ik %,jj
very
V"
RPD
Qua ff
COD
42.4
«g?L
1
20
063
5,00
-
LCS # 1
Pammeler
Measured
EL
Units:
P-1 I
n IM %Recovery
I&L
Qualifier
COD
75.9
mgrl
1
77.9
97,4
Parameter
M-$.t d
Fill
Un W.
Dl
51ft 9L84J19120[
LGL
]jC1
ChW
COD
75.0
Mgr-
1
77.9
97.4
-
Certificate of Laboratory Analysis Page 100r 40
This report shall not be reproduced, except in 10.
O rder # A 4100268
Level 11 QC Summary
Q14110229 Diones ENORGANIC ION'S BY IC
Blank # 1
Parameter Messlaed
Elm
Units:
UPI
Ba Relative
Comxmmliun
Qualifier
Chloride 0.0440
0.0446
MDIL
1
0.1
< 12 RDL
-
Ruoride 0.0302
00302
rrlgrL
1
0.1
c 12 RDL
Ndrate 0.0365
0.0305
mgrL
1
0.1
< D2 RDL
-
Sulfate -0 MIN
-0-00000
mg4
1
0.1
< 112 RDL
-
IS N 1
Parameter Measured
Fi-I
Units:
RII
Ssike %Recovery
LU.L
Uhl qyWftl
Chloride 10.1
10.1
mgrL
1
5
80
120
Fluoride 4.90
AIM
mgr-
1
5
00
12D -
Nilreie 639
5.30
mgrL
1
5
eD
120 -
Surale 0.02
9.02
MWL
1
5
50
120 -
ISD # t
Parameter Mmsur'4
Floe!
Undo:
ad
$12M %Rew+ery
LQ
U.0 RPD Quer
Chloride 10.1
10.1
nWL
1
5
so
120 -
Fluoride 4.97
4.97
mWL
1
5
90
120 -
Nivate 5,30
5.36
M91L
1
5
so
120 -
Sublie 9
9
mgrl
1
5
80
120 -
LCS # 1
P".el Measured
F10c1
UoAE
DIl
§010 %.R
LSb
USd QualRier
Chloride 4.93
4.96
mglL
1
5
99.5
90
110 -
Fluoride 5-05
505
mgA-
1
5
101
90
110 -
Ndmfe 5.01
5.01
mgn-
1
5
100
90
110 -
Sulfate 4,95
49e
mgli-
1
5
90.2
90
110 -

Certificate of Laboratory Analysis Page tIof48
This report shall not be reproduced, except in fug.
Order # J14100268
Level II QC Summary
Q14110346 HC 245.1 MERCURY {CO1,D VAPOR) M WATER
a@
Mmumd
F.MI
110AL
11
lzihg
Yk Led Uct
M-ry(Hg)
0783
0.763
LVL
1
1
763 70 130 -
ISD # I
Pa. in
Me and
R-1
SlL-ka;
21
%Remrerr LCL- UCL RPD 0-
Marr:rry (Hg)
0.648
0.849
L9L
1
1
648 70 13D 10,6 -
LCS # I
Pomm0ffi
Meaetaed
irml
il=
Qy
Spike
% Rawrery Lq� UCL Qualifier
M-ry (Hg)
1.88
1.88
UWL
1
2
94.1 65 115 -
LCS tl2
Paiamaler
Measured
EUOj
UDae:
Qjl
i91h9
%..Hsi+ S1f Lfl, U" -1
Merw1y (79)
1.88
1.88
uga-
1
2
94.1 85 115 -
NIS H 1
Parrot Sample: 114110305 - 1014012-134
Pemmetar
Measured
Fine,
jh=
M
Spike
%RaCpve[Y LSL UCL Quslrrer
Ma-ry(Hg)
9.99e
0,999
U91L
1
1
99.3 70 130 -
h1SD 9 l
Parini Sample 114119305 - 2014032234
Pon.= r
hkjoyezo
F1LJ
UnW
ag
Spike
% Re - LCL 99L RPD 0-1iF =
Mmmry(Hg)
0.975
1
uglL
1
1
99,6 70 130 0,302 -
MS M 2
Parrot Sample- 1141103D5 - 201403�2235
et
M..,,ned
Elml
UILOL
QU
afiPlk9
% Reco LSd SIS& QLW
Mererry{Hg)
0,9m
0.984
u90-
1
1
97.4 70 130 -
hISD k 2
Parrot Sample: 1L4110305 - 1014032235
Pmameler
Measured
fjp,Je
UDae:
QP
gp&n
%R LSd Q" RPD Qualifier
Meaerry(14g)
0075
0958
Ug4-
1
1
06.8 70 130 aria -
NIS 63
Parrot Sample: J14110305 - 2014032-136
Flmmeler
4,�pa swell
E&J
V=
Qj
12�S9
71BlL OI Lid 1K.L
1.lercrry(Hg)
0-90
0075
UYL
1
1
OB_4 70 130 -
hISD ll3
Parent Searylr. A4110305 - 2014032-136
me
Fig
Final
UDAL=
Q1
Spke
%Recovery L9k UCL RPD 0-
Mercury 1R9)
0.975
0,907
uwt
1
1
99.6 70 130 1.21 -
hI5 N 4
Parrot Smie,114110315 - 2014032 57
Pammasgi
mmurw
EMI
VD11:
Q9
E.1112
%Reomery CL1L 11CL 0-
M-ry (Hg)
0,996
0,95
UWL
1
1
95.6 70 130 -
hISD M 4
Parrot-' rTl- J14110315 - 2014032257
Parameter
Measured
Eb1
Units:
Q1
50' a
%Rxaaery LCL UCL RPD Oualefiar
Marmry(Hal
0,975
0.947
4L
1
1
94,3 70 130 1.37 -
Certificate of Laboratory Analysis Page Isaf48
This report shall not be reproduced, except in fug.
Order N J14100268
Level 11 QC Summary
Q14110.346 FIG 245.1 MERCURY (COLD VAPOR) IS WATER
MS pis
Panm Sample/14110315 - 2014032238 ,
Pammete
Meowed
R"I
Uni
21
Spike
% Reppvery Lid m $IE160f
Mrcmy(H9)
099e
0984
Uga-
1
3
97.1 70 130 -
MSD p 5
Parenu Sample 114110315 - 201403E-158
Perameler
M
Rr' n1
Units:
J tj
Spike
% RecavarY LCL -VQ RPD OualRia
M-ry (Hg)
0.975
a Um
UD L
1
1
97.3 70 130 0,2M -
MS N6
Parm Sample J1411030 - 2014032259
Pammeter
Messu and
Firm$
;
Spike
% Remrery L&L m Qeal6w
Meralry ft)
0.906
0.999
u94
1
1
98.5 70 130 -
A1SD # 6
Parrot Sample: 114110315 - 2014032259
Parameter
Mmauied
�
Unita:
IL
Spike
% Rew LQL UQ HPIl Qualifier
M-y (Hg)
0.975
0.078
LVL
1
1
06.4 70 130 2.15 -
ms 07
Pumt Sample: J14110317 - 2014032261
Pammeft
Measured
Final
Units:
QA
3 iks
% RQQm y Lr.L lmf Q9al {!4t
Merary (Hg)
0-99a
098
uga-
1
1
98.5 70 130 -
MSD 0 7
Parrot Semple J14110317 - 2DW12261
Pommetar
MmaVBd
Ein91
Units:
Qj
Spike
%Re-g L" = RPD Quaifnr
Mermry(Hg)
0.975
0,967
UWL
1
1
99.2 70 130 0.708 -
MS H 8
I'mmi Sample: 114110317 - 2DW3Z-262
eammeter
+msAi d
Fi-I
UDas:
211
$pike
% Rappvery LrL = Quel
Mermry(Hg)
0.906
0,972
uad-
1
1
97.4 70 130 -
A1SD NO
Pumt Sample: J14110317 - 2014012262
Pammele
MJm5umd
Final
UnrW,
IM
SpM
% Recwm LSri = am cwITKK
Memory Mel
0975
0.904
uwL
3
1
Sae 70 130 1-22 -
AS k9
Puml Sample: J14110317 - 20)4012264
Pamml:ig
Messumd
Ees1
Stalls:
Q1
Mp v
%-RSA LSd I&L
Mererry Mel
0,9"
121
uwL
1
1
97.7 70 130 -
MSD M9
Perm Samlle 114110317 - 2014012264
Pamlrsig
(m3.wmd
FkW
UndE
Q3
Sake
% Rem e v L1'L V" Em 0e61L"R
M-ry (5e)
0.975
1.22
ug'L
1
1
99,4 70 130 1.73 -
MS N 10
Pwcn1Sample. 114130320 - 20MI2274
Pemmeter
Mmslred
Fin -I
UDtw.
IZ4
Spike
%99lSSO( LQ.L L&L a0u err
M-ry (Hg)
0.998
0.906
LVL
1
1
99.5 70 130 -
hISD M 10
Perm le. 1141L0320 - :014032274
Elm
Measumd
Efml
UnkE
Q]
Spike
%Recmav LCL UP! RPD ¢ygfQgJ
LW-ry (H9)
pal$
0075
ug4
1
1
97.4 70 130 2,13 -

Certificate of Laboratory Analysis Page 10 of 40
This report shall riot be reproduced, except in full.
Order # J14100268
Level 11 QC Summary
Q14120048 IM 245,1 MERCURY (COLD VAPOR) IN RATER
Blank 01
PROMMI
M.Msumd
Rml
Unas
011
f iL
Rolay+ C—mration Queffer
Mary (Hg)
-0,003
•0.003
ug1L
1
0.06
< 112 RDL -
Blank # 2
Pammela
Measured
U-1
VaLt :
211
RUL Relathe C--Mration Oua1 fier
Meraary (HU)
0,003
0.003
LVL
1
0.05
< V2 RDL -
IS # I
Parameter
Mm- dd
Fi I
U=
D1
Spike
%Recavcry LCL UCL 0y81dID[
Mercury(Hg)
0,702
0702
UG&
1
1
69,4 70 100 -
ISD 4 1
Parameter
Measued
Flea!
Unda;
Q1
Soitm
% Racoeery lu U.QL RRP ()Uali I
Mar-ry(Hg)
0722
0,722
U9&
1
1
714 70 130 2.84 -
LCS # I
Pammele
Measured
FVml
Sl06a:
DJI
Spike
%Racavery LCL UCL Qual Fur
Merwry (Hg)
1.9
1.9
LIA
1
2
95 05 115 -
LCS # 2
P.,mele
4 aei
F�-1
U=
QA
Spike
%Recavery LCL UCL 0 av 1iFier
Mercury (Hg)
1.93
1.93
LIGA
1
2
96.3 85 115 -
MS # 1
P..t Samgla J14110440 - 2014032935
Parameter
MM3
EiWJ
Units:
01
Spike
%Recrovan LCL UCL U81%r
M—,Y (Hg)
0.96
0.96
U91L
1
1
98.5 70 130 -
MSD # 1
Pasmt Sample J14110440 - 2014032336
ParaMater
M"3111d
EM
Una,.
DU
§vlha
% Recvlery LQL m RRP Qualifier
Merctry(HO)
0055
0.955
rrgfL
1
1
98 70 130 0519 -
MS # 2
Parm1 Sample 114110402 - 2014032684
P-1010
M"Swed
F)esl
Slang:
Qll
;i b
7ELid UQL Qw
Marrvry (Hg)
0.99
099
ugfL
1
1
909 70 130 -
:1ISD #2
Patrol Sample.. J14110702 - 2014032694
Parameter
Mm2wW
FkW
Unila;
2�
$Ch2
SR LU Ug& RPU 0ue1i(er
M—ry(H9)
0.955
0,955
rlga
1
1
95.4 70 130 3.0 -
MS Al 3
P-d Saraplf" 114110401 - 2014032683
Parameter
Measured
F1m1
Units;
21
ik
%Reoovery LCL UCL at
Mercury (Hg)
0.881
0.801
UWL
t
1
85 70 130 -
MSD # 3
Parrot Sample. 114110401 - 1014032693
Parameter
y96pumd
aw
Unite:
Q]
Spike
%Raeovaly LCL UCL RPD Qualifier
Marary (Hg)
0 a5a
0 A58
rrglL
1
1
84.7 70 130. 0,354 -
Certificate of Laboratory Analysis Page 20 of 40
This report shall not be reproduced, except irl full.
Order# J14100268
Level 11 QC SUmman.
Q14120048 I1G 245.1
MERCURY (COLD VAPOR) IS 1VATER
MS 04
Parrot Saatplr_ J14100169 - 201402W8
Parameter ""3-d
Fo_ml
Units:
Qi
Spike
S Ra000ery Ll;& M Quarfier
Me ry (Hg)
0.968
0.968
trglL
1
1
96.3 70 130
11SD 94
Parm[Sawk J14100268 - 2014029408
Parameter (;7msu
E-1
Units:
0
Spike
%Rearrery LCL UCL RPU Qual y
Mmeury (Hg)
0.953
0.953
WL
1
1
94.0 70 130 i.57 -
NIS #5
Pawn Sample: f14100291-2014029495
Porn elpr Maaarred
F1na1
S1 L
EN
Spike
J.RQWVMV LQL JLQ QU.1�4I
M-ary (Hg)
0.966
0 966
u DA-
1
1
96.4 70 130 -
MSD # 5
Parrot S-pk; 114100'_'91 - 2014029495
PalamMmureol
FL
Unds.
Q.L
aMtM
%Re "fv LGL US'I 2m oufl�s
W- y (Hg)
0.944
0,944
UWL
1
1
94.2 70 130 2.31 -

Certificate of Laboratory Analysis Page 21 of 46
This report shafl rot be reproduced, except in full.
Order # J14100268
Level 11 QC Summar
Q14110232 ICP_1'R.V TOTAL RECOVERABLE META1 S BY ICP
Certificate of Laboratory Analysis Peg. 22 o148
This report shall not be reproduced, except in full.
Order# J14100268
Level II QC Summay
Q14110232 ICP-TRAI TOTAL RECOVERABLE METALS BY ICP
Blank N I
AISD N 1
POMMet
Mea-ed
Final
UnM ,
DI
B2L
Rutalim Q000emmlion
Qualifier
Pemmefer
Barium (Be)
-0.000109
-0000100
mglL
1
TW5
< 11Z ROL
-
Iron (Fe(
B
6
Boron (B)
0.000074
1 000074
mWL
1
0,05
� 12 ROL
-
Mang- (Mn)
5.19
5.19
Chromium(Cr)
-0.0001 D9
-0000t09
mgrL
1
0,005
<V2 RM
-
Nickel(NV)
5.15
515
Capptr (Cu)
0.000214
0.000214
mgrL
1
0005
< 12 ROL
-
Slim (Ag)
0.403
0.403
Imn (Fe)
-0.00034
-0.00034
mgrL
1
0.01
� 12 ROL
-
Zinc (Zn)
5.21
621
Mang.-(Mn)
-0.00023
-0.00023
mgR
1
0.005
< 12 ROL
-
ASS N 2
Nickel (Ni)
-0.000301
-0.D00301
m9'L
1
0.005
, 12 ROL
-
Pommel m
mel
S11wjAg)
-0W212
-0OW12
m91L
1
0,005
,tt2 ROL
-
Bedum (Be)
5.50
5.19
Zinc (Zn)
0.00581
0.00601
m94
1
0,005
> ROL
-
Borvn(B)
5 02
5.02
LCS N 1
Chmmiun (Co
521
521
PammewMeaslaed
F.-I
ILni :
QI
2wj4
% Reaovery
Lr-
Im
Ma115er
Come, (Cu)
Soo
5.06
Barh- (Be)
5.26
520
m94
1
5
105
85
115
Iron (Fe)
5.07
5.87
Be-JB)
5.11
5,11
mgrL
1
5
102
85
115
Marlgsro (km)
523
523
Chmmhan (CO
531
5.31
mo&
1
5
108
a5
115
-
Nickel (Ni)
5,16
5.16
Capper Mu)
52
5.2
mgrL
1
5
104
85
115
-
Si-(Ag)
0,485
0405
Imn (Fe)
5 26
5.26
mVL
1
5
105
as
115
-
Zinc (Zn)
5.2
5.2
Mangan (W)
527
5.27
m9'L
1
5
105
85
115
-
A15D N 2
Nickel (Ni)
5.3
53
mUIL
1
5
106
85
115
-
Pir.re[841-et
MeeSured
Final
SIW(Ag)
0.407
0.407
mQfL
1
0.5
09.3
85
115
-
Baer
523
523
Zinc (Zn)
5.32
5.32
m9
1
5
106
a5
115
-
(B)
BoranrL
lB)
5.05
5.05
NIS N 1
Pumt 5a..plc
114100268
- 2014029400
Chromium (CO
528
5.28
Paramrrler
Measured
F.-I
ullbe
QI
§mU
'lLE
LCL
m
Q1mll
Copp-(Cu)
5.11
5m
Bark -(Ha)
542
542
-01
1
5
l05
70
130
Imn [Fe)
54
5.9
Fio n(8)
5.13
5.13
m91L
1
5
102
70
130 -
-
Margeneae(Mn)
5.26
5,26
Chromium (CI
5.26
5.20
mgrL
1
5
1D5
70
130
-
Nickel (Ni)
5.2
52
Copper (Cu)
5.13
5.13
mWl-
1
5
103
70
130
Sher (Ag)
0.491
0.491
Imn(Fe)
6,04
0.04
mgrL
1
5
1D8
70
00
Zim(2n)
524
524
Maroen (Mn)
524
5.24
mg&
1
5
104
70
t30
Nickel (Ni)
S.10
5.1B
mgrL
1
5
104
70
l30
-
Slw (Ag)
0.404
0404
m9rL
1
0.5
95.7
70
MO
Zinc(Zn)
5.25
5.25
mgrL
1
5
105
70
130
-
MSD N 1
Pmml Smnpler
1141 D0268
- 20140294DO
Pm.m
Mms"
FLnal
Uni[s:
QI
5911k9
Sk.Ba> Y
LSL
Sl.GL
822 QuWft
Badum(821
537
5,37
m9fl-
1
5
104
7D
130
0978 -
ob- (8)
5.1
6.1
m9rL
1
5
102
70
130
0.705 -
Chmmium(Cr)
5-24
524
m9rL
1
5
105
70
130
04" -
Copper (Cu}
5AI
5.11
mgr-
1
5
102
70
130
0.332
Pumt"-Vle 114100269 - 2014029400
Unw,
QI
fiC 2
%Recavery
VC
1JCL
RPC Quall(ler
mgrL
1
5
107
70
130
0.071 -
MWL
1
5
103
70
130
0,903 -
mgrL
1
5
103
70
130
0,405 -
mgrL
1
0.5
98.8
70
130
0,155 -
mgLL
1
5
104
70
130
0,613
Parent Sample:
J14100268 - -1014029407
Un1 ;
Qll
§wu
7<L8
LSL
IKL
g1$1Y�!
-WL
1
5
103
70
130
-
Mort-
1
5
100
70
13D
-
OWL
1
5
104
70
13D
-
Mort-
1
5
101
70
130
-
mgrL
1
5
104
70
130
-
MorL
1
5
103
70
130
-
mgrL
1
5
103
70
130
-
m9rL
1
0.5
97.3
70
130
-
mgrL
1
5
104
70
130
-
ParmtSample:
J1410026K - 20140294D7
uJe
PI
k[
14 t2 m
LQL
S&L
RPD Qualft
-WL
1
5
104
70
130
0.676 -
-OFL
1
5
t01
70
130
0.590 -
mgrL
1
5
t05
70
130
1.34 -
UVL
1
5
102
70
130
0,004 -
m9dL
1
5
10.5
70
130
0.593
OWL
1
5
103
70
130
o.099 -
mg4
1
5
104
7O
130
0.714 -
nwL
I.
05
06.4
70
130
1.06 -
-WL
1
5
106
TO
130
0,921 -

Certificate of Laboratory Analysis Page 23 c148
This report shall not be reproduced, except in full.
Order # J14100268
Level II QC Summan-
Q14110235 IAIS_TRM TOTAL RECOVERABLE A TALS BY [CP-NIS
Blank 41
Pentmeler
Measued
Final
Units',
0
E01 Reletrve
Con--Mratlon
Qu lifer
Aomlic (As)
0.0109
0.0169
u91L
I
1
< 112 RDL
-
Cadmum (Cd)
00069
09089
-A
1
1
< 112 RDL
-
Lead (Pb)
•0.0017
-0.0617
uglL
1
1
< 112 RDL
-
Selenium (Se)
00402
0.0402
ug+L
1
1
< 112 RDL
-
Thallium (TI) Law Level
-0.0393
-0.0393
uglL
1
0,2
< 112 RDL
-
Les #I
Paremelar
Measured
FI-I
ni
91
jWhg
%Reco
Lr�l.
�Lu QueliTier
Anteni. (As)
61.3
51.3
ug&
1
50
103
65
115 -
Cadmklm (cd)
62.3
52.3
uglL
1
50
l05
85
115
Lend (Pb)
51.8
51.8
ugk
1
50
ID4
65
1l5 -
Selene -(se)
51
51
ug1L
1
50
102
85
115 -
Thellum CTI) Low Level
51.8
51.8
r91
1
50
104
a5
115 -
MS 01
Pared Sample
J[41D0269 - 20]40294CO
Parameter
Measured
Final
Units:
94
Soike
% Recovery
Cy .
UK& Qunlifi r
Arsenic (As)
51
51
u94
1
50
102
70
130 -
Cadmk-(Cd)
50.4
50.4
u91L
1
50
101
70
130 -
Leed (Pb)
515
515
a91L
1
50
103
10
130
Selenium (se)
49.4
49.4
u171-
1
50
98A
70
130 -
Thallium (TI) Lon Level
51.1
51.1
u91L
1
50
102
70
130 -
MST) tl l
Parrotsamrle
114lM269 - 2014029400
Pommel er
1010as14ed
am
U=
IN
Solke
% ReMvery
LQ
U" EM Qy Ie f r
Anerlic(As)
50.4
50.4
uwL
1
50
lot
70
130 1.09
Cedmium(Cd)
505
505
ug-
1
50
lot
70
130 0.198 -
Laed (Pb)
50.9
50.9
LVL
1
50
102
70
130 1.23 -
Sewwrm (Se)
502
502
ugrL
1
50
1J9.9
70
130 1.49 -
Th.9um (TI) Low Level
50.8
50.8
uwL
1
50
101
70
130 0.747 -
AIS 9 2
Parrot S,t.Vic
314100269 - 2014029407
Peremeter
Meesured
Final
Units:
01
59M
%Recrovery
LCL
UCA QveUer
Arsenic (As)
51
51
ugiL
1
50
101
70
130
Cadmkml (Cd)
49.8
40.8
u9fL
1
50
99.5
70
130 -
Leed(Ph)
51.1
51,1
uglL
1
50
102
70
130 -
Selenium (Sal
52.1
52,1
ug'L
1
50
lot
70
130 -
Thallium (TI) Law Level
50-9
50,9
uwL
1
50
102
70
130 -
S1SD ti t
Parml tiample:
114100268 - 2014029407
Pemmeler
t
Final
Unaa
Q
S.ike
L0L
UQL EM Quo, fef
Assume (A31
5D.5
50.5
u9'L
t
50
101
70
13D 0,891 -
Certificate of Laboratory Analysis Peg. 24 o148
This report shall not be reproduced, except in tuff.
Order 0 J14100268
Level 11 QC Summary
Q14110235 I?IS TR,v1 TOTAL RECOVERABLE W.-TA LS BY ICP-ATS
h1SD M 2
Parrot Sanmle: J141DO268 - 2014029407
Parameter
Mwsued
ELel
Un"
IIi $olke
Wt. IKL RPD Qual
Cadmkxn (W)
48.8
48.0
u911-
1 50
973 70 130 1.85 -
Lead (Pb)
51,2
51.2
-9A
1 50
102 70 130 0.0783 -
Selenium (Se)
52,5
52.5
ugR
1 50
105 70 130 0.633 -
Thellium (TI) Low Lawl
50.4
50,4
u9R
1 50
101 70 13D 0.988 -

Certificate of Laboratory Analysis page 25 o140
This report shall not be reproduced, except in tuff.
Order # J14100268
Level II QC Summary
(214110267 TDS TOTALDISSOLVFDSOLIDS
Duplicate # 1 Parrot Saalplc: 114110003 — 1014031127
PMR10V M�Sumd BOW SNP:
TpS 90 mKpt 1 6.45 -
Duplicate # 2 F—IS.M11 1141100D3 — 2014031132
Pa.. Mmswod Fimll UnRs: L RPD Qual�er
TDS 84 ng1L 1 2.41 -
PemmII14I Measured Fins1 li0l67: IN -!PI-kg 'riRecoMery LQL 1tr.L QuaFfier
TDS 27 IVL 1 100,4 98,e 90 110 -
Certificate of Laboratory Analysis Page 211 e149
This report shah not be reproduced, except in tuff.
Order # J14100268
Level Il QC Summary
Q14110290 TDS TOTAL DISSOINFD SOLIDS
Blank # 1
Pasameler MASVSffi
Inn
units:
oil
fM ReWIrve
QA centminn Qua
TDS
0
mg(L
1
25
112 RDL
Duplicate # 1
Purrs Sampte: 114100269 — ?014032048
Pemmeter Mmssaed
Eh)sl
Ong
1Z
RPD Q11!' �q[
TITS
55
mVL
1
5.51 -
Duplicate # 2
Puws S.mp1c: J141ID305 -- 2014032235
Pa�claT Meaaved
Fi-1
UntS
PL
RPQ Qgjil
Tp3
217
-91L
1
2.33 -
LCS it 1
Plammete Men
&W
Un�
Oil
kitia
2j H LQL U-CL svelte
TDS
09
MWL
1
1n0.4
98,6 90 110 -

/ a a x ^• u — F ec
I mo � Usly.
M r
it
IRd O O
U o
....
'"at
yyn��y
M •��•y.s.�
Iw CGIIiAl is 4.W.
ft H'Y lit G -11fi
..r+a
�('�` 2fi0.siG3?2
7 0
qp�
li
Qm�
i�toy
O c e�i
N � �
b p�
fi y.
? N

C� DUNCE
ENERGY.
PROGRESS
Mr. !lave Parnell
North Carolina Division of Energy, Land and Mineral resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 276011
File: 12520 R
12566 C
Subject: Mayo Monofill Project
Surface Water sampling results
COC#t: NCG120101
Person County
Dear Mr. Parnell:
Mayo Stearn Plant
Duke Energy Progress
10660 Boslon Road
Roxboru, NC 27574
1UN - 9 2014
NO ,IN,, ROI(Pth Regional 0Mce
In accordance with the requirement found in the subject permit, enclosed please find results from the
initial surface water sampling done at the Mayo monofill. These sampling results are from the "pre-
operational" samples taken in accordance with the Surface Water Quality Monitoring Plan required by
the North Carolina Division of Solid Waste. Future sample results will be sent to you using this same
format.
Please contact Mr. Shannon Langley at [phone] if there are any questions with this submittal.
i certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with o 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. 1 am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing violations.
Sincerely,
G'V�VI/v'l
William 1. cker, Plant Manager
Mayo Electric Generation Plant
WJ7/esl
wwmduke-energy,<:orn

0
` q.37 ♦
SEQIMENTTRAP t
.' �� MW! , 5,t Z 0 Z
U }
RAILROADLu
SEDIMENT y
TRAP
ALE I, �• tis`' SOIL arOC► P $ I °. 5' n•�-/
1 �
PHASE 1 asp
t Y, * e/ , ACCESS
ROAD
we y LEACHATE ( y 111r .'v YY'q. �' •-✓",Y
SAMPLE L-1 1
- %• eEs{r � LOCATION
t I -
O�v UNPAVEDROAD � l k 4 y
413 .
_.., � •�, ,gin � � �':y`,j- : w ,,,,� �
SEDIMENT BASIN �„n sr}�jt
j LISIITI OIF WASIE "
(APPROXIMATE) �,c NCE* v� . K• t _ *'- 111 �57
REVIEW BOUNDARY •.� , ^� N �� *' '1 w 3
� . p (APPROXIMATE) p
A7 �E * if
COMPLIANCE66UNQARI' - ,_:r-r'•��r',�..•-''� h ,h}'1 w'
�.`-.--,—z �•- (APPROXIMATE) "� �+� s w+j-' •'p i to is
Cam. � ♦'� ..ti-
DUKE ENERGY y.CG C< n.i,
TY BOUNDARY evPRUPEA¢�i<
y � Ya
r w,• •y} JJJ�,F •'difr
•'fit`-
p x f
131.E�?00 #, DASE MAP PPOVIDEO flY DUNE CN!IkCr.
2. CONIOUMS FOP PHASE I ARE fy}1 GRADING PLAN • TtlP
OF LINER bRAWIr+G ND, IFC-27 (GOLVER ASSOCIA'ILS, INC.).
SWA
'F��MW1 I,� :�r _ y ` GKUUNUxATER IlOmrvaac WELL
�A� file+-t.cE WATER Snn ,ulp LU".r.riere
49;1 Lmrr OP 5vA3ie fahrwm.
LhW-YLL REVIEW 90W�DuN fAr+,'+k-P;
�I' r� .,h rye ti--,...ti,.,,,,.w,.-.• ---- LaNyr�,4 CoHY�.�ArFCa Oour+Unvar fA �,r�r,.)
DUKE ENiRGT PRp+E9r1 flouN7n:{r
STRIAm
ELI1rccGaaUNpSir>i•ncsGu+Twm
�7@ •'s - �y - nosi I G-,UJNO SUWACE LCN1'UyYr,
Ppoi:6 17Gr or LINER tOWNR
SG4l_E (FEET)
3DJ 0 SDp 00a
i rrrw kti rw16
� W dW� tart. J$ntl C.Rt-lL M'. Wd77
SAMPLE LOCATIONS
MAYO ELECTRIC GENERATING PLANT
CCP MONOFILL, PHASE 1
PERMIT NO. 7305
JUNE 5, 2014
PICiUAE� ��
2

Table 1- Field Data Parameters -July 2013
Duke Energy/Mayo Electrkc Generating Plant
CCP Monofdl, Phase 1- Permit No- 7305
WELL
DEPTH TO
WATER
AVERAGE
WELL
EVAC
SPECIFIC
SAMPLE
DEPTH
WATER
ELEV.
PURGE
PUMPRATE
VOLUME
VOLUME
EVAC
TEMP
CONDUCTANCE
pH
TURBIDITY-
ORP•
Do.
DATE
SAMPLE ID
(feeg
f
feet
APPEARANCE
ODOR
METHOD
m min
Ilony
Ilona
nb
do
umho cm
SU)
(NTU)
(mV-NHE
m
7/10/2013
MW-1
40.26
18.40
48L78
Clear wltn Fines
None
LF
100
3,57
1-00
No
19.2
335.5
6.1
14.8
129.9
31.5-
7/10/2013
MW-2
7d.97
40.82
421-33 Clear with Air Bubble$
None
LF
120
5.57
1.00
No
1&4
636
6.9
8.3
278
8.96
7/10/2013
MW-3
53.26
d3.85
392.27
Clear
None
LF
180
L53
L25
No
18.5
802
6.8
6.4
158
7,77
7/1O/2OL3
Mw-0
38.90
35,44
38&28
Clear
None
LF
80
0.56
0.25
No
2L6
922
6.5
i.3
-606.0••
539
7/10/2013
MW-5
51-69
24.90
407.98
Clear
None
LF
100
4.40
0,25
No
244
586
7.2
1.6
226
8.17
7/10/2013
SW-1
N/A
N/A
N/A
Not Noted
None
N/A
N/A
N/A
N/A
N/A
24.3
247.3
6.7
N/A
-63.6•'
4.09
1/10/2013
SW-2
N/A
N/A
NIA
Not Noted
None
N/A
N/A
NIA
WA
N/A
25.4
146.8
7.4
N/A
•97.4"
7.22
7/10/2013
SW-3
N/A
N/A
N/A
Not Noted
None
N/A
N/A
N/A
WA
N/A
260
109.:
6.6
N/A
-113.6rf
6.74
NoieS:
L A,rge Methods. LF•LO,. Flow. LFtv)-Low Flow Modlf,ea, CP-Convenllenal Pure 13-5 wait voiumesl NP-r;v Purge (ttydraSleer,e), EOP• E4u=.pmer4 Orly Pwge. Arerrge pump fete epPUCAbte -a Lr alp LFIMVw VAK only.
2. Fail sampling performed by SynTerrd Coroorador personnel.
3. EVAC indicates whe7,ar"water level in the wait was draw n Clown to me level of L'M PUMP during pmvn&
4, uMl`Weln I' Mwtek micro nep5 per cenl,Meter.
5. mL/min irtdleales mi! ihten per Minute.
6. SU indcates S:anda d unrb
7. NTU l dreate5 NepheiumeVlb Tufbidiq Oniu.
8. Mv-NhE Indlples milTivotts-,\ormal Hycroger, F7edrode.
9. MLIL maleates rmlhgrams oef Me,
10, N/A edKatas nm 3ophe4bie,
1L - SrnTena Coroorauoe is not t.t-cerb!:ea Tor these Parafw.er Dina colkctee for �rtorrnruon purposes any.
12. •• inaleates uta- al readurgs noted during data Witeotion. meter Probe was covey mslle JQmnl durint field measuremenls
13, Informabon Provided by DukC Ener6' m October 2, 2013.
page 1 of 1

Table 3 -Surface Water Field and Analytical Results -July 2013
Duke Energy/MayD Eiecuic Generating Plart
CCP Monofili, Phase i - Permit M0. 7305
Sample Me: JWy i0. 2013 Lattoiamry Ce.^.ar-w' rates:
SynTerra Ca=mtbn Field •M'41
Flee Sampling PDXMed W SynTesra ramoratton Wee Enerfi Analyticai Labcrattwy 4243
Pace Analytical Services, Mc.a40
ft mtttmr
SW5 J0
Units
CefVftcato
Code
Sar ;e Location
SWSL
15A WCAC 2B
7305 5OV-1
73D5 SW-2
7305 SW3
Field p)i
320
So!
a591
6.7
T.A
6h
NE
FNE
6.09.0
epeorz Cdnductantt
323
Untro/cm
5591
241
I 141
L10
NE
Temperature
325
T
5591
24.3C
25AD
2aOD
NE
NE
tLsenl:
14
PVL
248
149 1,
0.1.38 1
11561 J
10
10
Banvm
15
PUL
248
"„emsl 4'478
27,2 r
.yut9Z':p
100
200.OW
l BUD
316
pg/L
40
2500 U
2,0DO U
102.000 U
NE
NE
Barn
429
WL
248
5,04 J
11'.3 J
4.1 J
NE
NE
Cacmium
34
A911-
248
0-101 U
0.101 U
0.101 U
2
Cldaride
455
,IIL
24a
4480
6.110
3-a30
ME
73U.te00
.arromium
51
PPA
216
2.49 J
0.5 U
?.3:4,.
LO
50
COD
317
at%r'L
248
26,i0C 1
5.110 J
3,780 U
�
NE
Copper
54
µErL
248
101 J
1.19 1
's`'tr. -- 7,m
10
7
FhmmOe
312
yg/L
248
257 f
244 /
153 f
2.000
1.800
kon
340
pgrl
248
;v-.`SE�7M.'i!
:§,.*:CI= r7
i"-3i.GU0%f
300
LOOO
Lead
2,51
µg/L
248
1A2 f
flA74 1
3-22 f
10
25
ASanEanr,e
342
PVL
249
..4�S70Y
x$il .Glp-q
3F3'
50
YE
Mefcury
132
oErL
.248
OA06 U
0.006 U
0.02 )
0.2
0.012
Nickel
152
ug/L
248
2.11 1
05 U
225 r
50
68
Abate (as t::;;ogenl
303
4ErL
248
2, 1 f
94-5 T
922 f
70.000
WE
I Selenium
183
WL
246
126 f
0,999 J
Lns r
ID
5
surer
184
mVL
'14&
0.7 U
0.7 U
0.7 U
SO
OAG
Surate
31S
MVL
248
16,200 f
6.720 -P
4.770 f
250,000
NE
Thatlium
19A
MVL
248
0.123 U
O.i33 U
0.133 U
&5
aAT
TOC
357
;WA
248 �
i2.10D
5.630
3,680 1
4E
NE
T&A DmsoNed Solids
311
µIL
248
2'40,000
104.000
2G6,000
riE
4E
DIC
213
PVL
1 248
5.55 f
2.6 U
"�K33,3_?y 1
10 1
50
dates:
1. Cancenaatrom presemetl In mraogaren an liter f oLR7-
2. SWS 0 la L9c Sofro Waste SeeWn Idert eetion Number.
3. ShrSt Is me Sufic WrI tte Section Lhnit. NCOU41 dct:r,s the SwSL as Ina In a sm-Ne drat osrr be gt rY,ai7rely de•.enviaed with svnn9le W-Aft w, Nr d accaocy.
A. SSA NCAC 23 Swda,d Is Iram'Na:, Car43wa Adrmm=ej" Cage, T,de 15A--Derrarrnwc a Emtra-snent ana ruKvid Rvsw, s. S,bwpk, i g-Sur!aee W*W and fretW S•,sIV-udL- itaat X-vm ed m vt , t, 1047J tm Refs C w9 a-m
5- :ire mew" za Nyw Rna me CxSHxtl a5 C = C wad -ReLutatlan 15A NetC V8.0211 amro7es wrtn gcak V s'.anda,ec tar Crass C wA;ers-
Reteretra t5A NCAC 2H .C206 Ctar, 'rmtiorrs aid water OuMty Standugs Adpdeaote m 5onace W sters riC. amtneed EtsaMv.4, May 1, 2007.
fv Grayed q4hd,=O,awes that atlas, a, r-reed the SWSL mamAr". ..
7. HWd value•. Indieae v,rwes mat Kt4�n :+r eweed tfw 15A stG4L 2B Standara.
8. � ineserla rot esraot5hed. HL•N,cc,s mekyte that mere is rro mto,na0an retc ant m d,e ,es: ectl.eiaw.
9_ � flUzraars in nee .eUemd x+e are kfwa:ary data quar ..ies o Migs'. 1r Is uses to U-Vy =Lfts rmt=ereCed Al smt - brx4or3 Watt attain Vc taLb,aMWa metnx ,tewcLa Ihmj&A7LL
'r is used to akn:ry est"ated wn-m-lion. wt4m attar, a txcm6 Ne MDL cut are tali' - V. L bwal es P ckwl rmp eirq am IURLL
An R&U:I" f-aL m a data culler, ae0.d by HDR In imiwr mnmw.**ons wrvz!� a7s4n w e.ceed the ta3rnamr/s MRL VA Me Jem than tee SWSL
I0_.Acconi tL totrm CmWtx ens LAmkvp we7paCe an the W-DE 4R 061.3,m et waste Ltanaie"wn w-tpaye. dare is "SWSL St4:Hlerd rw Ctende asspaautd wlm CAS iur,:bOr I6S5 NXIc whin Ir Lrta CAS TIpona1 gythe cmw4rLwy
to Ile anays-s c:ar„pleted. Therefore, thr SWSL SLndaro llsted It tar the cr4o:d9 wtct CAS m mhsr SwnI as stvW%d on ore Cwr MmA L4ah-ao wftomre I1aSLZW5Ud June 13. 2011L
11- SU Irmic es Standard Urals.
12-ftWdrn wawtes nWarrVlCl per Comiltetw.
1.i HOD tndifataa bk1her i al M.%m dew�. OW IrNgeates dreniftl g yten ee.QM. TOC Ired cm- mt)1 wL¢r a trDer,.
14_ Anatyee,!t reaWts db'tM and tmm Elearanie Data Deti able if:J37', arot*$ed by Duce FAerty on Dr.Ma 2, 2073.

Table 5 - Field and Analytical Results that Equal or Exceed
15A NCAC 2B Surface Water Quality Standards -July 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monofill, Phase i - Permit No. 7305
Sample Date: July 10. 2013
Feld Sampling performed b/ SpTerra Cdrporaiion
Parameter
Sample ID
Result
Units 2B Standard
HiStDrloal Concentrations
Cau" and Significance
Copper
1-11-3
48.7
pg& 7
48.7
This is he first sampling event at SW-3.
Iron
SW"1
16.700
P&A
.1
16,700 This is the first sampling event at SW-1.
SW-3
31,600
OWL
31,600 This is the fist sampling event at
Notes!
L 15A NCAC 2B Standard K Irun'.4orth Lacuna Administrative Code, Title I54 Daparment of Envi•onmon: and Natural Resources. Subchapter 28, Surface Water and Wetland Standards,' (last amended on May 1, 2007) for Class C waters.
2. Anatytical results obtained rron Electronic Data Deliverable (EDC) provided by Duke Energy on October 2. 2013.
3. pVL indi=eg micrograms per Ieer.
4. Kstoritat concentrations [lased on data in Duke Erergy reSuhS databage.
Page 1 at 1

Table 6- Fleld Data Parameters -August 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monoff[l, Phase I - Permit No. 7305
WELL,
DEPTH TD
WATER
AVrr�E
WELL
EVAC
SP=lc
SAMPLE
DEPTH
WATER
ELEV.
PURGE
RIMP RATE
VOLUME
VOWA(E
EV4C
TZV?
CONDUCTANCE
vH
TLIMDirY•
omp.
DO'
DATE
SAMPLE10
ff-M
(feet)
(mall
APPEl1RANrE
ODOR
METt106
(TL/:rt?.-.)
22110n6)
(ItiWOM)
(yW'/m)
(d"C)
Inrrho/etn)
(SLn
CRTU)
(rzt"wq
tmyD
8/21/2013
V%1-1
40.26
1&53
4EL55
t7cv
Nwe
LF
90
354
1.00
NO
18.8
33J-6
6.3
141
253
L53
8/2112O13
MY-2
76.27
42.D7
42O.Oe
Cle.lr
None
L°
140
.537
L50
Na
1&7
663
7.1
1OB
12&9
3.29
6/22.12013
6(W--3
53.26
43.69
392.A3
pear
!tine
LF
170
1.56
1.5O
140
:6.4
7Laa
6.9
7.94
159
3.24
W721/2013
MW-4
39,90
35.65
3S&O7
Ci44r
!inn&
LF
140
0.53
1.00
.ND
18.3
974
6.6
9.12
1123
1,40
8,x2V2O13
"At5
50.83
2094
411-94
Clen!
None
LF
100
5.05
0.25
440
1&3
572
7.4
'5.5
7.2
0.39
8/2T/2013
SW-1
NIA
N/A
N/A
Clear with Iron Flocs
Nme
NIA
N/A
N/A
N/A
N/A
21.4
233.7
7.6
2L9
-9.6
4,00
9/22/2013
SW-2
N/A
k/A
Nti A
Clear
None
N/A
N/A
NIA
N(A
N/A
22.3
120.4
7.5
4.29
i49.2
6.2;
8/22J2O13
SW-3
N/A
NIA
WA
Uor: Tart
None
N/A
N/A
NIA
N/A
N;A
23.6
1.15
7.3
43.2
t46.2
5.93
Notes:
L Purge aAevtods; LF-,.ar, Flaw, LF;ntS-Lew Flow 140E;Le0. CP-C.ant*dxw21 Purge i35 wr,9 voeares3. NP-No R=te ll+lcraSlx•e). EOP-Equc<aas[ OMI Rees, Avexe,r! Prmq raft s0pt,,Dl: to LF ar. LFi%llpL," eay.
2. f4dd Sampin C Perdrmed oy S)mTe m Cornwalran perSwh' st. _
3. E1AC erapates.me--mr the watrr level in the +d1 was moan down to 3. WM of the pore dorlr.f.X er,r2-
d. W-1,0/om Indicras -= m!MS p'_r Ceftn ves.
5. MVW mdwias MwI tan Pn mmutc.
6. St1 Standwd trnns-
7. NPJ rrsd cMes Nephelpm&M-, wwd,ty Unit,
fl-mV40lE"Kate iYO,,Wirilonml Hyd.oe*r Electrode.
9- me/LMaucetea mmvams w kke
10. N/A wxweatly rut appamo a
11. - SynTwa Ceq w :l P is nct NC rWiep tw vl st pe amnt - Data celaled Iw xrdwma4an purposes w;ry-
12. Irdwmaaen pauided by Duke E.nergq an 0=tw 2, 2013.
piwe 1d1

Table 8 - Surface Water Field and Analytical Results - August 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monoflil, Phase 1 - Permit No. 7305
Sample Date' August 21 and 22. 2013 Laboratory CerJficate Codes:
SynTemn CorDQfation Field 95591
Field Sametmg performed by SynTema Corporation Ouke Energy Analytical Laboratory 0248
Pace Analytical SoMces. Inc. 640
Parameter
SWS iD
units
Cerulldsto
Coda
Sample Locabon
SWSL
].5A NCAC 2B
73065Wd
7305 SW-2
1 7305 SW-3
Feld pH
320
Su
5591
I 7.0
7,5
7.3
NE
6.0-9.0
SpeVIC Cbnduc-ance
323
i m. b.'.
5591
I 233.7
120.4
115
NE
NE
Temperahtre
325
'C
559I
23-4
22.3
23.6
NE
NE
Arsenic
14
PL!t
248
0.695 1
0.234 1
1.69 P
10
10
8artum
15
Wi
246
86.2 f
27.7 f
34.6 1'
i0O
201
SOD
316
pgrL
40
2.000 U
2.003 L'
2.000 0
t;E
NE
Boron
428
VWL
248
3.3 U
10.2 1
3.3 U
NE
PIE
Cadmium
34
p7/L
248
U.101 U
0.101 U
0.101 U
1
2
Chlonde
455
WVL
248
5.090
4,-,W
3630
NE
230.000
Chromium
51
pp/L
248
0.664 J
0.5 U
2,59 J
10
50
COD
317
pg/L
248
15,400 J
16,700 J
1';,DQO J
NE
NE
Capper
54
i:g/L
248
1 U
_82 1
4.79 1
10
7
Fluoride
312
pill
248
202 1
154 X
149 1.
20DO
1.800
Iron
34D
ug/L
248
6.110 A
I:SDO -d
1 2.750r1;
300
1.o00
Lrad
I 131
ug;L
248 1
0.123 i
0.19 J
0.279 1
10
25
Manganese
3,12
411-
24fi
7.1.290;7
W-282r7
'lW'-'.J
50
NE
Meres,rr
132
vsVL
248 l
0.006 tF
1 0.006 u
0.006 U
0.2
0.012
rbCkN
152
pg'L
248
0.515 1
0.5 U
1.63 J
50
88
Nitrate tes N-,rogen)
303
rhg;L
248
111 1,
123 1.
127 1'
10,000
NE
Selenium
183
pF L
248
0.238 J
0.246 1
0.395 1
10
5
Sinter
164
p$;L
24$
0.7 U
0.7 U I
0.7 U
SO
0.06
Sulfate
315
pg7L
248
2.97D T
5.8111 1'
S, 140 1'
250,000
NE
Than
194
µiLm )t
248
0.133 Li
0.133 U
0.133 U'
5.5
0.41
7OC
35 7
"'IL
248
5,570
5.710
4p8p
h1E
NE
OLs
Totat sotved SWils
311
IWL
248
158,000
99.D00
115.000
NE
f,E
Zinc
213
PVL
248
2.6 U
2.6 U
8.78 1
10
50
motes:
L CVrr IZM%an5 ,^.resented In mraoirams W axr Ipt'LL
2 SWS ID is the solid Waste Seaton Identrtration Number. -
3. SWSL is ilia Stl:d Waste Seaon Limit NCDEtvR defines lire $W$L pS :he Iowe1t Amount PS anarste ina sample that Can be gaenl:IdJYEry detenmtnN dim Slntatle n Pteaaidaria dP3lreCy.
4, 154 NCAC 2H Sandard is from -North Caroana Adminls7at- Code, live 15A: Deperment of Emtranmem and Natural Resources. Suoarapter 2E - Surfare Water and Watiand Standards: !last amended on May 1. 2007) tar Class C *a-.efs.
5. The Decennial streams to NyCo River are dassttied As Class C waters. Regulation 15A NCAC 020 .0211 Pro�ldes water truat-ty standards lot Class C raters.
Relmence 15A NCAC 29 .0700 Classdicadons and Water Quality Standards APPSCeble to SurlUe waters and W,Wmda W N.C. Amended EnAc ii: saay L. 2CO1:
6. Grayed values indicate vatues that attain or eared ore SWSL Standard.
7, cold uMwes ndcate values that attain Or eyed the 15A NCAC 20 Standard,
8. NE Indicates nos esaWiyred. Blank etas indtnta mat there m no imormatwn rcrevam to the reSot a t Wr.
9. Quabfims in nonktaPmed text are laboratary data duahben or'Hap'.'U- Is iced IC aerhtCr licit ro not detected to toncen7a Jan whtct attain the labarsurts metntd detection urea{MDLl-
'1' h used to iaMtth estrnated CdrhCenvationl which attain or exceed me VOL but are less than the iabwatdrys method neDomnt omit IMRLI_
An c4Matea 1-fiat Is a data gYaaitar, added by HER to Inm=e ecncerrvatidrrs wtikth attoln or wmea tin laboratory's ttRL but arc Iri1 man Ire SWSL,
10. AcDoiamt to the Convi- ant Lookup webbate CrM1the NCOENR Division of Wastr ManatdMrnl weboate. there rs rid SWSL Standard lot 0trodde azWmetl with CAS number LG887-0". at.Ch is the CA$ reported by Jte laboratory
rr me anary:ea competed. Trhereture, me SWSL Slalhdard listed is la ma cfhlonde rim CAS number SW3D1 as specified on me Constituent LOdkup weboate Oast updated tune U. 20111.
IL SU whdkales Standard Vann
12. romp/cm indicates mlaomfros oer centimeter.
13. 600 indicates tivdter.YCal o,yterh demand. COD tndlmies merticat aryten demand. TOC Irhdiutes total ottanic carbon.
14, Anary l results obtained from Elei:V"0C Data Oelivereble (EI)V) ptWidad oY Duhe Enerty on October 2, 2013.
Page I of 1

Table 10 - Field and Analytical Results that Equal or Exceed
15A NCAC 28 Surface Water Qua ty Standards - August 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monotitl, Phase i - Permit No. 7305
Sample Sates: August 21'and 22. 2013
Feld Sampling pmformc-d by SynTerra Cafpo,ation
Parameter
Sarnp)e,O
I Result
(Units
2BStandard
Hlstorlcalconcentrations
Cause andStgsifleanoe
Stnc1
6.' 10
pf/L
6.111) - 16.700
iron axfoen'rMon at SVl--1 is the lowest concentration measured over the perod of monitoring. Tnis is the second monitoring
event at SW-1. Turbidity Measured at 21.9 NTIJs.
SW2
1.100
pp/L
707 - i.100
Iron cwrentratitm at SW-2 is the hE�.ost Concentration rneisured over the period of monitoring, T: is is the second mar4m-i g
iron
iMO
event at SW-2-
SW-3
2-7Sa
yp/L
2,700 - 31.600
Iran concentration atSW-3 is the Kest oonCentrattort measured over Jre period of monitoring, This is me smvw mot;i;onnr
event at SW-3. Turbiday measured at 43.2. NTUS.
Notes:
15A NCAC 20 Staxard rs f.•='North Carolina Fdmlnisuatwe Cotle, TrtM 15A., ikparrnen*. of Environment and Natural Resoumcs- Subchavter 211 -Surface Water and Wetland Sundards,' (fast ameldm M Mar 1, 2007) To, Class C Waters.
2. A,nalytieaf results oblainod from Electronic Dula Oetivnrable (EYb) provided b$ Doe Energy on Octob^r 2, 2013.
3- pWL indicates rhirnograrns per lie!.
4. H AwCdl carrcentratfotis based urn data in Dike, Energy anal>Ucal resufs database.
Page 1 c+ 1

Table 11- Field Data Parameters - November 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monofiill, Phase 1- Permit No. 7305
WELL
DEPTH TO
WATER
AVERAGE
WELL
EVAC
SPECIFIC
SAMPLE
DEPTH
WATER
ELEV,
PURGE
PUMP RATE
VOLUME
VOLUME
EVAC
TEMP
CONDUCTANCE
pH
TURBIDITY*
GRP•
Do'
_DATE
SAMPLE ID
(feet)
(feet)
(feet)
APPEARANCE
ODOR
METHO0___(MVnrrin)
_
(gallons)
(gallons)._
()es/nO1_
(degp
(umh0/pm)
(SU)
(NTU_)__.
(mV-NNE)
(mg/1}
IVI,/2013
MW-1
40.26
1938
480.40
Clear with fines
None
LF
100
3.34
1.20
No
15
324
6-3
23
283
2.3
11/14/2013
MN-2
76.27
42.92
419.23
Clear
None
LF
130
5.23
L20
No
I6
682
7,0
9.7
125
LS
11/14/2013
M'A'-3
53.26
43.81
392.31
Clear
None
LF
200
1.54
L20
No
15
763
6.9
8.5
'-07
1.7
11/1412013
VW-4
38.90
35.(9
388.63
Clear
None
LF
105
0.62
1.20
No
16
991
6.6
8.2
4
0.5
1!/14/2013
SSW-5
50.83
21,23
411.65
Clear '
None
LF
i10
5.00
0.24
No
16
570
7.3
5.9
78
0.4
11/15/2013
Stitt-1
N/A
N/A
N/A
Clear weth Iron flpts
None
N/A
N/A
N/A
,N/A
7
194
6.9
36
81
5.8
11/15/2013
SW-2
N/A
N/A
N/A
Clear
None
N/A
N/A
N/A
N/A
N/A
6
150
7.0
2.9
179
9.9
IV1512013
SW-3
NIA
N/A
N/A
Clear with flocs
None
N/A
N/A
.1/A
N/A
N/A
6
150
6.8
6.6
84
6.9
r:dtt5
L Puree MMods; LF-Low flaw. LF(M)-Law Flow. Modified, cP-Conremierud Purge 13,5 wen rrolumesl. NP-No Purga;HydraSl�e), EDP-Epuiprnerrt0rky Purge. Ave: age pump we applicable io LF and LFIM;pmong only.
2. Feld samplingperfo ed>h Synfena Corporation personnel.
3. LVAC indicates whedMr are water level in the well wec drawn down to the level of the pump during purging,
4. umno/crn irAcetes rtutro mhos per tenbnreter.
S. m4lmmt indlcates miZiaers per rmnute,
6. St'' E3>deete5 Standard Un,s.
7. -'n indicates NePhelomebic Turbidp UNis.
8. mV+IHE indicates m,ffi raft No-011 Hydrogen DecOode.
9. mg'L irm,wtes m-ingrams pe, liter.
10. WA indicates not applicable.
11. ' SynTena Caooraton M not NC4ertined for tttese parameters. Data mlected for in•prrnation pww.r, bnty.
17. Inlarmatwn movrdee by Duke Enw& on December 10. 2013.
Page : of 1

Table 13 -Surface Water Field and Anatytical Resufts-Nover.Ibcr 2013
Duke Energy/Mayo Electric Generating Plant'
CCP Monofill, Phase 1- Permit No. 7305
Sa de Date: November 14 and 15, 2013 Sabontary Cer.:.rt:aix Comes:
SynTwa Crrpotatmn Fetid 05591
FIM Samplmg perfom ed C') Sy,;Tefra Corpora^1an Puke Encrry Anahtcat Latsxa" C14fi
Pact Atrat eaCel $eMCCS. Inc. a40
Paranatar
sws ID
uhtts
Certlncffit
rarla
sampl7 Location
S ML
L5f.` A =2B
73175 SW-1
7305 SW 2
73C15 SW-3
N,td pH
320
S11
5541
6.9
7.0
l 6.8
NE
6.0.9.0
Svec#ffc CONuctance
323
ra "Icrr
5591
194
I 150
3-50
NE
:8=
iemperahm
3
'C
5591
7.0
8.0
5.0
NE
NE
4senrc
to
4VL
248
0.375 1
I 0.078 U
0.373 1
10
10
Barium
l 15
Kf/L
248
69.7 J'
21.6 11-1
41.1 f
100
200,L00
EFDD
316
WL
40
2,000 it
2.000 U
2.700
NE
NE
Baran
428
tWL
248
3.3 U.
33 U
3.3 U
raE
NE
Cadmbsrn
34
KgrL
24n j
0.101 L'
0.101 U
j 0-SO1 U
1
2
ChWde
455
tE?L
248
5.500
7,170
6,480
NE
230.0DO
Chromium
51
ugrL
tab
0.5 U
0.5 U
0.5 U
1D
•50
cm
317
gvt
248
j 9,760 J
9.I20 I
3=1D0 J
NE
NE
Copper
54
py 1
248
1 U
I U
I U
10
7
n mride
312
;rR+L
248
181 J' t
140
2000
I'WO
40
24
-6
^
W2V
30
0P3bn
Lead
131
vgfL
248 j
0.23R
0.065 U
1 0.065 U
t0
25
Marsfanese
342
Wt
24H
72.8 Y
>ir"O.i2g1'.^e.!
50
NE
AtTrcvry
232
tWL
248
0.006 U
0.006 U
0.006 U
0:2
0.012
t:ickN
157 -
TS1L
248
0.5 U
0.5 L'
0S u
50
I ES
tlrvare (as Nrgr EZen?
303
vjVL
248
21,1 1
S.4 U
420 J'
.10000
PIE
solemum
333
pg>L
748
0.142
0.101 1
0.092 u
1.0
5
Wer
184
>:g,+L
24fi I
0.7 U
0.7 U
9.7 U
10
0.06
swate
315
ugrL
2a8
a,000 J•
1i5D0 f
15.700 J'
250.000
RE
Thanium
194
pgJL
248
0.133 U
0.133 U j
0.133 u
5.5
OAT
TDC
357
IWL
246
3.360
4,76D
5.260
t✓£
NE
Teui Dmsdved 5MIds
311
sWt
248
161,ow '
105.000
I 11.1.000
r;E
NE
Zinc
213
vVL
248
2.6 U
1.6 U
26 U
10
50
,N%M
L Co+r atlorts presa4ae In rituM ms par 7.tK 3:4,rLL
Z. SWS i11 c the Slid v astc Sealan 1Cen:Jf .radon Nit'rrbm
T. SVrK a ula Sot1 Waite Sec»n Llyra;, 14COEWR domes Ere S WSL as MK Iowea aoy4rnt of anaryta to a samofe that can Ue gi,wjMaseppeitnianed W. Su.;al}e =61itfrr a.K aP.ima ty.
4, 15A NCAC 28 Siandard is from Nr* r COoiina AdTrgHsUative Code. TC.te ZA: Depannent al Efr+tror It and Natural RCa'Cl:reei. SubMWer 2B - 5trrtate Wattt aria WtL' A Sfaffd:rrt.. Bella.• Waa an taay L 20071 fet Class C waxrs.
S. The perenfrprl strWn to Hyw Rh rr ere di!s Med st Class C waters. Retutal]M ISA NCAC 026 .0211 prosWas wale, auaftty slandands for Cass C waters,
S Serence 15A!:CAC ZB .0200 Clmnkatwns and Wetin Quallty Standards Apptraltrr to5uitam W a'.tei and WettaWs a1.,,X. Ammrded F:fecrr n; Mar 1, 2007.
f.. GT:n^_e rak: fnOiCM slues matatmm or td Lhe SWSL 9200MCL
Bail' vah� inctIte , %9 VA' allSin OF exceed tht 15A !:CAC 2e Standard
6, NE OKhztas rrot eStaOGYred. Blau+ 4aQi rrldKd>e l^a: dle[C Ana "vc<arr.Ta'Jan faJeva'ti SC Lne rCSp>'C11t ror.
3. Quatlkrt n nanAiaBC:ed test arc tabws3aY dAtl ou3lRers n'tgts'. J'rs u d tC identify rmft rrai oereexd at e4near.!ratletrs whiC attain the gSOra!oryt muU od deMc7M soati%TD4
7 h :rxe In fderro`r rt�+falfA cOncenvetlerrs »il�r ewtin ar erceyl Ltia aerial btu xre lr�s :ban SfY_ lacmatwyf nraOsoC +rscrtrdt ttnrt IsaaLl.
An da'ipled J'-4at rf a data gUaldw. aGded by MDR tL indicate wnC ntal�s wn!str atTAJn or t,. a tht IrtmiatOW- MRL but air k5s Clan" SN51.
10. Attmfnit to pie Censuarea[LoaLwp w�pe;e on tie ffCOEdR Onxlw, of lvacte asarv,^crrten:,.ehpa>:e. Elerc h ro 5155E Sta+tdmC for Lrmnae assocktrJ wsm t:LS nrurrnrr i:Y.87pSfi, .sh,•l H m0 fA5 rl7orSrZt111 sx lemra!ary
for CM armlysea canpki+a t7rrrScr.,. tna S1Y51 Svenaare Fseerf is to Lne, Rdande mT LAS rtunber 51v301 asspro71H ax ttt Cdn�e � _wF- � webpslF OaY, toCa'�d iu>:• 13. T0I1:.
11: 5tt ettl:eatts standara Crata- '
c2. wrlLv= rrrynraies �. aKm per witnieief.
13. COD kxZwtes W90w KW rsyl:rm der3Nnt. COO Wt zates eir =& ov,sen demand. TOC Vrairatn tntal 0mo,,, e ro W,
14. Anaty tal iest6u WtaMed limn Elactrmdc Oan Calfw &-Aa SEDD7 pro.,dw ey !hike Enemy On Dec bo, 10, 2013,

Table 15 - Field and Analytical Results that Equal or Exceed
15A NCAC 2B Surface Water Quality Standards - November 2013
Duke Energy/Mayo Electric Generating Plant
CCP Monofill, Phase 1- Permit No. 7305
Sarnple Dates: November 14 and 15, 2013
Freld Sampt.ng perfom>ec by SynTerra Corporaoon
Parameter
Sample ID
Result
Unrs
2EIStandard
I Historical concentrations
Cause and Significance
Iron
SW -I
3.740
ug/L
1,000
3.740-15.700
Iron concentration at SW-1 is the lowest concen•,ratsor measured over the period of monitoring. Turbidity measured at 30 NTJs.
Sw3
1.020
P91L
1.020.3L600
Iron concentration at SW-3 is the lowest concentration mcasured over the oeliod of monitoring.
Notes
L 15A NCAC 28 Standard is trom "1Prt+Carolina AdmmrstratMe Code aitle 15A Depafinent Of Environment and Natural Resources. Subchapter 2B-Surlacs Water and Wetlard Standards; tlast amended on May I. 2007) fat Class C waters.
7 Analytical resuls obtained ham FlWtonic Daa Deliverable (EDD) provided by Duke Energr on December 10. 2013.
1 y+grL mdicates micrograms pet Mat.
4. HistoricV comemrations based on data in Duke Energy anahtical results database.
Page 1 of 1

Table 16 - Field Data Parameters -April 2014
Duke Energy/Mayo Glectr[c Generating Plant
CCP Moncirt% Phase 1- Permlt No. 7305
WE11.
DEPTH TO
WATER
A tkmE
WELL
EVAC
SPMFIC
SWIPLE
DEPTH
WATER
ELEV.
'PURGE
FUMPRATE
VOLUME
VOLUME
EVAC
TEMP
ODNDUCTANCE
RH
iLiiBMfi"
ORP'
DO'
DATE
SAf tPLE fD
reef!,
(Leng
c
APPF.tRANCE
ODOR
ME(HCA7
(rmin)
(0114")
(O3au
rn IC
umtq env
Sin
1Hit
mV-R+f
4/2/2014
mw_1
40.26
17.59
482.59
ce r
Nnr}
IF
136
3,70
050
No
15
330
6.1
1.7
-749
'2,700
4/2J2014
NW-2
74a7
40.9,1
421.24
Clear
NOnC
LF
:20
5.56
0.50
%a
16
7,31
7.0
C.7
151
4w.
-41212014
..N.w-3
53.26
43.21
392.51
C(Ouoy. gray
xmD a
LF
190
1,64
1.75
VO
16
782
£.7
9.5
147
1.000
4/2/2014
UW-4
38.20
34.74
38898
pear with fines
None
LF
130
0.68
.1.00
Na
17
1,042
6.5
5-9
64
400
4/2/2014
VW-5
51.29
17.95
415.03
Care,
None
L
110
555
0.20
No
16
578
7-2
3.1
_83
400
4/2/20.4
SW-1
NVA
N/A
N/A
Clear
XE a
N/A
N/A
h':A
N/A
N/A
V
18O
6.8
N/A
265
-Um
4/2/2014
SW-2
WA
N/A
N/A
Deaf
None
N/A
N/A
N/A
N/A
N/A.
20
130
7.4
WA
i53
7.100
.4/2/2014
SYV-3
NIA
N/A
y/A
C!car
No^e
Ti/A
N/A
N/A
N/A
NA
25
122
'7.5
N/A
_73
ahoo
r4olm
L Purge Uaftas; iF-Lerr R-. LRMI-Law Flo--. Vaddrel (7-Ca ,,wAi W "t 13-5 .0 va4enesS. NP-No PwZ^ MYCrcSlfty , CDP-FWapme� Onh Prate. A.frste Dump r4'.e aFPkMe w LF sn LRW.,rp 9-q any.
2. REW sxq)bgt Pefenexd bq SMTdre C&PW. o PersmneL
2. EVAC trtlieem *."Ox me -TX, tml in" -A ..e! 0,2+ 0. - W Arr keel of the DLL to*M/ MgM,
4. -*Wm tollmales mvYo mhw per C mmwter.
5.'Fi/-. !nEr:alee n+ift4rL-rs pe Mro ,
6. S0 crdccKn Sipndar4 Urgs
7. NFU imdiW; NvAbetomea* T -biEipr L Wr L
6. r&'4&W indiums rlydrem ELecn4e.
9-1Wt n+eraxa r3ar[ra PU hbr L
1(l. Y.JA inCirapy w oppgiPabie.
1]_' Syn'Idre%orP4r.lian : aac F'.Gcemr�ed Sn ihe.e pa.pmtterL. Uaa cNle[tetl far 1n!wmalion purpo:cs only.
iz.ln',acmrion po4dad Oy Odle Exc,pon Anvil z.. 2OS4.
Page 1011

Table 18 - Suda" Water rield and A.-1alytical Results - April 2014
Duke Energy/Mayo Electric Generating Plant
CCP Monofill, Phase 1- Permit No. 7305
Sa Df a Date: Aprn 2, 2014 l abofatory CerVicale Codes:
Syn',erra Corpo irtion vela 05591
Field SamCling performed by S"Terra COrooratan Duee Energy Ansfy'" LaGora:ary 1248
Pace Analyycaf 5crnces. Inc, -40
Parmaeter
Sm 10
Vnfts
CerLt7csx
Code
Sample Lowdon
SWSL
15A NCAC 28
7305 SW-1
73D5 SW-2 I 7305 SW2-DUP
T305 SAQ
Fmfd pH
320
SU
5591
6.8
7.4
7.5
114E
6.0-9.0
SPeci.tC Conducranoe
323
trmhpfcm
5591
130
13V
:22
!SE
NE
Temperature
i 325
'C
5591
12
20
25
1E
NE
Arseruc
14
uWL
246
0-193 J
0.141 J
0.134 J
0.529 J
I0
10
1 Bad=
15
vIVL
248
54.7 f
26.6 P
2e.6 r
25.6 r
1C�J
200.0p
BOO
316
PLIL
40
2 U
2 U
L
2 U
j hE
YE
Boron
426
pXIL
248
f 6.63 1
10.2 }
9.67 1
6,7$ J
NENE
Cadrniarn
34
P9fL
248
0.101 U
1 0.101 U A
0.1ot U
1 0.101 V
1
2
Chloride
1 .155
crv'
248
5,050
9,1'_0
9,190
1 5,700
NE
230,000
Chromium
1 51
vVL
248
1-31 1
0.501 J
0.868 1
0-533 1
10
50
COD
1 317
pVL
248
13.800 3
7.130 J
11-100 J
7.760 J
NE
NE
Copper
54
WL
248
L97 1
1.2 1
L17 J
1.4 1
I 10
7
Aaonde
312
s VL
248
1 139 f
102 f
102
91.1 J
1 2.000
L9DLt
Iron
340
pVL
sag
',' I'M .1
" ;480
461-
.545 -o
LOW
Lead
131
UJIL
248
0.434 1
0'143 1
0.143
0.143 J
10
25
martsr'!Se
342.
pgft
248
-� 268%
1&4 I 11
16-3 J'
E . 6L2'.
5D
NE
Mercxrry
132
Uivi
248
0MG U
0.006 U
0.006 U
0.006
Nickel
152
WL
248
0.E03 J
0.5 L
0.624 1
0.504 1
1 50 1
E8
1v57ate (as Nitroaenl
303
I»✓1
2a8
6.i0 1
5.a U
5.4 V
2L4 }
I 10.0110
NE
Selenium t
183
I VVL
248
0.096 J
0.092 tl
0.102 1
O.± J
1 10
5
Sdver
164
WL
248
0.7 U
0.7 V
0.7 U
0. i U
10
D.06
Si4late
315
ag/L
24E,
6.560
IOG f
L2, 100 f
10,3(10 !'
1 250,000
NE
Thallium
1.94
µg/L
249
0.133 L'
0.133 U
0.133 U
0.133 U
55
0.47
TOC
357
pg1L
248
3.930
3.360
3,320
775,3
F'E
NE
Toni D%s5olve0 Solids
311
pg/L
248
141.D00
SJ,D00
92.000
67,000
"JE
Tans
213
1
245
2.5 U 1
26 U
1 2.6 U
2.6 U
L 10
550
1. Cor%centrnpvns prcaattted n n•avtrams per aia* 112rLF
2. SW'S t0 is Lit SW4 waste SCCJw, ldtrill1col1w Number.
3. SWSL is we Soled Waste Stctw Limit. NCDENR defines the SWSL a3 7x lhwest amount of anpltte'n a se-Vd that ear be qua--=!,veiy da ,"need vain wtable prcdvun and a ret2.
4. 154 NCAC 20 Standard Is?rcm'Norin C&Ohm Admwhsutrd,e Code. Title 15a ceparrnem of Envho-n avd 1latuval RM.saw , Suboy plar 28 - Surface Watm atd v: edand Sanda,es,• JISS%amendec ort stay L 2GG7) for Class C -atets.
S. the Wtinr,al Soeams to r4. ( River are ctassrrled as Class C ,aie Reiulawn 15A NCAC 020 .0211 monde% -ate- avaay standwds for Class C ratan.
Reference 15A =Aft 20.0200 Classlftpa'Jans tried Weser QuaAy Standards npotta%ple to Sw1p0.' Waters ens WerJo." N ttC- A. -Wed Enact%•x: i+•ar L MT,
S. Grayed valuer IrM to vatues that a5rn a e.cerd 9,,e SWSL S•anda+d.
1, Bola values'rKuc to values List attain ow eaoted the 13A NCAC 28 SanCuA
8. NE ind.,caies not estabhaheC. 81artk cells Irw1wt Mal mere Is no %Wynn b: relevant to pte te=e w rov.
3. QuaClie.s in mrFnaswvet teat are laboratory data q• ldlers of 'llais'. Vis tried to Identity lasui s net dettifted at rnncentrat%ns -1t.Ct attain t e blivratan's mem4d drre4nan iwNl (MUL)-
'r LS used to ide+r5!! esdmatea Conoantra:%:ns whkh 334,n or Ex a tna AfL)L!t,A a'e less than vie IabwatONs method repwting lima fMRL)-
An iWimed f-na= Is a data 4".Xet, added L+ MDR :o rndtaa`JQ ecr traanns watt attain or extted Me Iabaralorys NRL gut we less Icon 7te SYSL
10. Ac *-K to Lq CGnW. U Lop„M) -ObpKe p 7e i.'D&%A 01+as%on of W4:.a 11arHraraerd neb03M Owe a na SWSL Smnoato 1w ~de a44etlA'rd w%Ih GAS r %.er 168£7-008.'amcr'. is 71e CAS tepaltd bi the lappra'a•r
Icy t" anatfsea cxin. eted. Thererwe. the SWSL Standard t6tc4 is for C%e attertde vnth CAS mrriber SSYJOI as speW.*C an Lne Consabren%Lt%ck V.` ATtWge last upaaw P" 13, 2014
11. SD mdiatbs Sarcard Una
12. u.,nW n Indicates mfaomhds per Ce:t4metm.
13. SOD inelcates biocliemicst ogfgn demand. COD fndwr'.es Memkal waters demand. 70C mdkmx total ar4xnic carbon,
14. Anayttaai resurJ eotario4 trvn Electronic Data Dchver Ne iMDl pvvlded It, Duse Fo" on Apnt 28. 2014.
Page 1 of 1

Table 20 - Field and Analytiaef Results that Equal or Exceed
15A NCAC 28 Suriace'Water Quality Standards - Apdf 2014
Duke Ener&/Mayo Ek--cwc Generating Plant
CCP Monotill, Phase 1- Permit No. 7305
Sampk- Owes: April 2- 2014
Irleld SargAng porfomted byrSynTerra Corporation '
Parameter Semple ID P.est3t U.ft as s-.Mdard li;torf¢aI Ccrwentra:) Cats OW Sgltnctrnea
hon Sty-1 1.860 vW LIXlO 1.86t1- 15.7D0 trap com"Mation at SW-1 is the lot-_ Corw-,e=ation moasurft over ate period of rgnderlrg Tud i3Kr sneas rrd atSS12 N%L -
NMS-
i " 1WAC 29 Standard n !ram Ttorth Carolina Adnsa :s aWe Code. Te]e 15.10eWrmemaf En-ironmeM and rtaunal %tesav cm SoA--- pier 2B-Suriaee Viam a*W W:'A &n4f S andards.-(last amcnad an"t, 2W-.Itw Class C w4nens.
2, pnrFj7 j rsfi4 abUkmd hum E4elrame Data pftwrable IEablarowdey by Duke Enmrj on nprd 28. 2014.
3, kt't •silicates rak Qvams r e. Llwr.
a. UTV cKt- les NephefaanetrF. Turhkitj Mtz
S NaScx'vs[anaentrsliam based an data m Duke Erwrp xutybeai ras= daubase-
Page-.1 0[ 1

T
Geor oulias, Bethany
From: Georgoulias, Bethany
Sent: Wednesday, May 07, 2014 1:37 PM
To: Parnell, David
Cc: Holley, John; Pickle, Ken; Bennett, Bradley
Subject: RE: Mayo Monofill
We discussed your questions this morning, Dave. Please see our responses below.
I3elhan}, Georgoulias, Environmental Engineer
NCDENR / Division of Energy. Mineral, and Land Resources
Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street. Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: hitp://portal,ncdenr.org/web/ii-/stormwater
G'-mail correspondence w anel firm) This address nurn be s-uhlec,t to the Yorth C"orolirrcl Public Records law (mid rna)' be rliselasc d 10 lhirdparries.
From: Parnell, David
Sent: Friday, May 02, 2014 11:18 AM
To: Bennett, Bradley; Georgoulias, Bethany
Cc: Holley, John
Subject: Mayo Monofill
received a call from Shannon Langley of Duke Energy. He had two issues to discuss:
1. The landfill is under construction. The material will not be actually be moved to the landfill until June
or later. The required first sample period is from January 6 to June 30, 2014. There may be no, or very
little, material in the landfill by June 30. 1 suggested that Duke request, in writing, an extension of that
first sample period, either by 3 or 6 months. I pointed out that it is important to get a valid sample of
the parameters to compare to the last sample to be taken in 2017. Does SPP have a preference on this
time extension?
Dave, we agree with your suggested approach. Please advise Duke to submit a request to us to delay the sample period
for the extended set of metals and other parameters specified for Jan -Jun 2014. The basis of the delay would be to
characterize discharges appropriately at the beginning of the industrial activity, while also allowomg time for the
monofill activities to get underway. We will likely revise that requirement to be the second half of the year (Jul -Dec
2014) instead. We will respond to their request with a letter since this is just a minor modification to the monitoring
scheme.
2. Shannon also wanted to meet this summer with me, to talk about ROS. What is the SPP thinking on
the amount of data needed from this facility, before we are to review, and possibly approve his
request? I usually would like 2-5 sample periods of data in order to make a determination.
After discussing, we feel like the most appropriate course here is to have them sample according to the permit until
NCG12 is up for renewal in 2017, and then ask for ROS determination during the renewal process. Because the COC was
issued in the middle of the NCG12'5 cycle, the monofill will sample 5-6 times by the time renewal approaches in 2017
(depending on when industrial activity of the monofill octuolly begins. From the context of the first question, it's possible

they will not even have to sample in the first period if no material is moved into the monofill before June 30`h—onother
factor we considered.} we typically contact permittees about renewal application —6 months prior to expiration, i.e.,
around April 2017 for this permit. Duke also only needs to sample for the extended suite of metals and other
parameters (chlorides, fluoride, etc.) twice during this permit term. The site only has three stormwater outfalls, and so
we feel like this is reasonable. Does the RRO agree?
Thanks,
Dave
Dave Parnell
Environmental Senior Specialist
North Carolina Department of Environment & Natural Resources
Division of Energy, Minerals, and Land Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
0: [phone]
F: [phone]
E-mail correspondence to and From this address may be subject to the North Carolina Public Records Law
and may be disclosed to third parties.
4

Central Files: APS SWP
12/20/'f 3
Permit Number NCG1201.01 � Permit Tracking Slip
Program Category
NPDES SW
Permit Type
Landfill Stormwater Discharge COC
Primary Reviewer
Bethany.Georgoulias
Coastal 5W Rule
Permitted Flow
Status Project Type
In review New Project
Version Permit Classification
coc
Permit Contact Affiliation
Facility
Facility Name Major/Minor Region
Mayo Steam Plant Monofill Minor Raleigh
Location Address County
10660 Boston Rd Person
Roxboro NC 27574 Facility Contact Affiliation
Dulcie F. Phillips
821 Blaylock Dairy Rd
Owner Roxboro NC 275747527
Owner Name Owner Type
Duke Energy Progress Inc Non -Government
Owner Affiliation
Paula J. Sims
PO Box 1551
Dates/Events Raleigh NC 27602
Scheduled
Urig issue App Received Draft initiated Issuance Public Notice Issue Effective Expiration
09/23/13 ��6�z� t /6 /7 0 l j 0 131 /Zo r 7
Regulated Activities Requested lReceiv e d Events
Landfili operation RO staff report requested 11/27/13
RO staff report received
Outfall 001
12/19/13
Waterbody Name Stream Index Number Current Class 5ubbasin
Bowes Branch 22-58-14 C 03-02-05

N CG 120101
December 20, 2013
B. Georgoulias
Duke Energy Progress, Inc. — Mayo Steam Electric Plant Monofill for Coal
Combustion Residue (CCR)
Summary
This facility submitted a Notice of Intent (NOI) to be covered under General Permit NCG120000
(Landfills). The stormwater discharge drains to a Bowes Branch (Class C-Sw), in the Roanoke River
Basin. The stream segment is not listed as impaired or subject to a Total Maximum Daily Load (TMDL).
This facility is located in Person County, handled by the Raleigh Regional Office.
History
The Mayo Steam Electric Station (separate from the Monofill site) is permitted under the NPDES
wastewater permit no. NC0038377. In 2009, that permit included stormwater discharges; however,
NPDES stormwater requirements have since been split out and will be permitted separately. A separate
NPDES stormwater permit for the Mayo Steam Electric Plant has never been developed because of
unresolved monitoring issues for coal-fired power plants.
To address a diminishing capacity in Mayo's ash pond and risk of violating effluent limits in that pond
discharge, the company concluded the wet ash handling system had to be eliminated. The plant began
converting to a dry bottom ash handling system (which was 98 percent complete with that by late
September 2013). In addition, a proprietary bioreactor system to remove Hg, Se, and As from the flue
gas desulphurization (FGD) waste stream (directed to the ash pond) was installed, and new proposed
effluent limits were put into the discharge permit. However, the system has not performed as expected,
and the plant has not been able to meet effluent limits. In June 2012, a Special Order by Consent (SOC)
was finalized to address violations of limits in NCO038377 for ash pond outfall 002.
Of the remaining options to comply with the SOC, the company decided to evaporate all the water in a
zero liquid discharge (ZLD) system —basically by using a very large evaporator. The evaporator will
reduce water volumes to 5-10 percent of the initial volume, and what remains will be used to condition
dry ash for transport to the monofill under construction.
General Permit Application Review
a) The permit application has been signed and sufficiently completed. Yes.
b) The SIC code accurately describes this facility's activities and qualifies for coverage under
this general permit. Application noted SIC 4911 (Electric Power Generation), but this NOI
is for stormwater discharges from the monofill for coal combustion residue (CCR) that will
be transferred from Mayo Steam Plant's new Zero Liquid Discharge (ZLD) System.
The NCG12 general permit is applicable to stormwater discharges associated with landfills
permitted by NC Division of Waste Management under NC G.S. 130A-294, and therefore
under consideration for a Certificate of Coverage. Additional monitoring because of the
nature of the material is recommended as a condition of coverage (see special notes).

NCG120101
December 20, 2013
B. Georgoulias
c) Other permits of interest:
#1 DWM Permit No. 7305TNDUS-2012T(Permit to Construct— Phase 1) for Monofill
requires surface water monitoring per the approved Water Quality Monitoring Plan
(WQMP). DWM permit contacts are Larry Frost and Elizabeth Werner. See attached
excerpts from the WQMP and Solid Waste Industrial Landfill Permit.
Obligations require semi-annual monitoring of two upstream points and one downstream
point for numerous metals, BOD, COD, TDS, TOC, pH, conductivity, and temperature.
#2 NPDES Wastewater Perm RAN C0038377)Tfor Mayo Steam Plant (separate but nearby
location): the draft permit requires fish tissue sampling for mercury, arsenic, selenium and
thallium up- and downstream. A monitoring plan will be submitted by the company and
approved by NCDENR/DWR. The draft has not been finalized because of on -going litigation.
d) Regional Office input requested: 11/27/2013 (RRO contacts D. Parnell of DEMLR and A.
Romanski of DWR).
RO Approval received: 12/18/2013 (see attached e-mail and correspondence from A.
Romanski.) DEMLR concurrence on 12/20/2013 (conference call with D. Parnell and J.
Holley).
e) Will a Post -Construction Permit be required? No, outside of Roxboro in Person County. No
permit unless county has other requirements.
f) Review of data from haul road stormwater discharge data from Mayo Steam Station:
NCO038377 required semi-annual sampling and analysis for several parameters at
stormwater discharge outfall 010 since it became effective on November 1, 2009. However,
only three stormwater DMRs were located in Central Files. Samples were from 9/21/2013;
3/15/2012; and 8/27/2011.
Shannon Langley e-mailed copies of samples from 9/21/2013 (also in CF); 5/6/2013;
2/19/2013; 10/29/2012; 6/11/2012; 3/15/2012 (also in CF); 8/27/2011(also in CF);
5/17/2011; 11/4/2010; and 4/21/2010.
Sample concentrations exceeded benchmarks only once: 5/17/2011 for TSS (152 mg/1), Cu
(9.4 ug/1), and Al (4430 ug/1).
g) Special Notes:
This site will be a fully -lined landfill (approx. 34 acres) for coal combustion residue (CCR)
with potentially very high concentrations in metals. A 1-million gallon capacity leachate
collection system is being installed just west of the landfill and will direct wastewater to the
wastewater treatment system permitted under NC0038377.

NCG120101
December 20, 2013
B. Georgoulias
Access roads would be handled under the Mayo Steam Station stormwater NPDES permit
[yet undeveloped.] Truck loads are to be covered, and truck wheels will be washed upon
leaving the plant.
h) Stormwater Permitting Recommendations:
The NCG12 permit already requires monitoring for Chemical Oxygen Demand (COD), Fecal
Coliform, and Total Suspended Solids (TSS). COD will also be sampled up- and downstream
per the Water Quality Monitoring Plan (WQMP) in the Solid Waste Permit. Several metals
will also be sampled in -stream as part of the WQMP, though not necessarily during storm
events.
#1: Recommend sampling all outfalis for following parameters once in the first sampling
period (between Jan 1-Jun 30, 2013), and again in the sampling period before renewal
application (between Jul 1—Oct 31, 2017) of the permit, without any benchmarks:
Antimony (Sb) [priority metal]
Lead (Pb)' [priority metal]
Arsenic (As)' [prioritymetal]
Mercury (Hg)' [prioritymetal]
Barium (B)'
Molybdenum (Mo)
Beryllium (Be) [prioritymetal]
Nickel (Ni)' [priority metal]
Boron (B)'
Selenium (Se)' [priority metal]
Cadmium (Cd)' [priority metal]
Silver (Ag)' [priority metal]
Chloride'
Sulfate'
Chromium (Cr)' [prioritymetal]
Total Hardness (mg/I)
Copper (Cu)' [prioritymetal]
Thallium (TI)' [prioritymetal]
Fluoride'
Zinc (Zn)' [priority metal]
'These parameters will be monitored up- and downstream semi-annually as part of the
approved Solid Waste Permit WQ Monitoring Plan.
RATIONALE: The first sample will yield a baseline for stormwater discharges when the
monofill operation is still new, and the last sample will compare discharges after at least
three years of operation. The list includes the 13 priority pollutant metals (40 CFR §423,
App. A) and other constituents (chloride, sufate, etc.) that may be present in highly
concentrated amounts because of ZLD water used to condition the CCR transported to the
monofill. The amount of dissolved metal is hardness -dependent in many cases and
determines toxicity potential. Results will also help determine whether it is appropriate to
continue coverage under the General Permit at renewal.
This list is based on potential CCR constituents and recommendations by.the Raleigh
Regional Office DWR (A. Romanski, 12/2/2013 e-mail attached), Aluminum (AI) and
manganese (Mn) were omitted because water quality standards do not apply to the
receiving waters (Class C) for the monofill, and they are not priority metals. However, Mn is
referenced in the SOC because effluent limits have posed a problem (NOTE: Mayo Reservoir
is classified as a Water Supply water, WS-V, with a corresponding Mn standard).

NCG120101
N
December 20, 2013
B. Georgoulias
These metals and other compounds are also associated with air pollution control technology
(APC) waste streams like flue gas desulphurization systems. Molybdenum (Mo) does not
have an NC WQ standard, but there is a stormwater benchmark for Mo based on acute
toxicity data. Along with As, Ba, B, Cd, Cr, Hg, Sb, Se, and TI, the fate of Mo in APC residues
has been studied as part of on -going research by U.S. EPA's National Risk Management
Research Laboratory (Environ. Sci. Technol. 2010, 44, "Evaluating the Fate of Metals in Air
Pollution Control Residues from Coal -Fired Power Plants").
For reference, the following stormwater benchmarks are associated with these parameters:
Parameter
Benchmark ' ,
Parameter'
Benchmark
Antimony (Sb)
0.09 mg/I
Lead (Pb)
0.075 mg/1
Arsenic (As)
0.34 mg/I
Mercury (Hg)
12 ng/1
Barium (B)
N/A (WS std only, Nat'l
Human Health Criterion)
Molybdenum (Mo)
510 mg/I (no WQ std or
Nat'l criterion, but
some states have a std)
Beryllium (Be)
0.065 mg/l
Nickel (Ni)
0.335 mg/I
Boron (B)
N/A (Narrative Nat'l WQ
criterion, 1986)
Selenium (Se).
0.056 mg/I
Cadmium (Cd)
0.003 mg/I
Silver (Ag)
0.003 mg/1
Chloride
860 mg/I
Sulfate
500 mg/I
Chromium (Cr)
0.9 mg/I
Total Hardness (mg/1)
N/A
Copper (Cu)
0.010 mg/I
Thallium (TI)
N/A (Nat'l Human
Health Criterion)
Fluoride
1 6 mg/I
Zinc (Zn)
0.126 mg/I
P2: Also recommend supplementing each semi-annual sampling event with analyses for
conductivity, pH, arsenic, selenium, and boron.
RATIONALE: Conductivity is an indicator parameter of inorganic contaminants, and regular
monitoring through the permit cycle will establish values characteristic of the stormwater
from this site. The pH is also an indicator parameter and important for interpreting toxicity
of total recoverable metal concentrations. Both are also rapid and simple parameters to
measure in the field, and offer an opportunity for prompt attention if an issue arises. Both
arsenic and selenium are constituents in CCR, and Se wastewater limit violations are
addressed by the SOC (per wastewater limit violations recorded in BIMS for DMRs submitted
in 2011-12). There are NC Water Quality standards for both metals. Boron is a tracer for
the presence of coal; regular monitoring will establish a characteristic level in the discharge
and help the company identify excursions above normal ambient levels. Combining
measurement of these three elements with conductivity measurements may also establish
trend relationships for a more simple monitoring approach in the future.

N CG 120101
December 20, 2013
B. Georgoulias
Stormwater concentrations over the following benchmarks should be noted on DMRs but
not trigger Tier Responses:
Parameter". h
:Benchmark.t
Conductivity
N/A
Boron (B)
N/A
pH
Between 6.0 - 9.0
Arsenic (As)
0.34 mg/I
Selenium (Se)
0.056 mg/I
Based on a review of the haul road stormwater data from the Mayo Steam plant, we do not
anticipate these benchmarks to pose a problem unless there is a contamination issue in
need of attention. Data for these additional parameters should be submitted to Central
Office with the DMRs for this permit.
Phone and Meeting logs
9/11/2013: Meeting with Toya Ogallo, Shannon Langley, and Steve Cahoon of Duke energy Progress to
discuss project prior to N01 submittal.
Questions
There were only three SDMRs in Central Files; has there been semi-annual stormwater sampling of SDO
010 at Mayo Steam Plant? Yes. Shannon Langley e-mailed copies of the reports on 1111512013.
Where will fish tissue sampling for Mayo Steam Plant take place? Mayo Reservoir? Most likely.
Monitoring plan that requires fish tissue monitoring "near the Ash Pond discharge" will be submitted to
0WR for approval after wastewater permit finalized, and locations will be defined in the plan. Proposed
NPDES WW permit language suggests As, Se, TI, and Hg will be tested.

Georgoulias, Bethany
From: Georgoulias, Bethany
Sent: Friday, December 20, 2013 11:17 AM
To: 'Langley, Shannon'
Cc: Bennett, Bradley; Pickle, Ken
Subject: Mayo Steam Plant Monofill NCG12 COC
Hi Shannon,
I wanted to update you on the status of the Certificate of Coverage for the Mayo Monofill under NCG12. We have
obtained approvals from both the Raleigh Regional Office DWR and DEMLR staff. I am finalizing the COC and issuance
letter before I leave today. Since Bradley and I are both out much of the rest of the year, we'd prefer to sign and issue
the final permit on Monday, January 6`4, when we are both back in the office. Will that date work for you all? Bradley
returns before than I do (January 2"d), if for some reason it needs to be issued that week prior. Please advise us if you
feel that's necessary. We'll email you an electronic copy of the final COC once it is issued.
Thanks, and I hope you have a good holiday!
Bethany
Bethany Georgoulias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and Land Resources
Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: http://porta1.ncdenr.org/web/Ir/stormwater
E-mail correspondence to and from this address may be subject to the North Carolina Public Records law and may be
disclosed to third parties.
-----Original Message -----
From: Langley, Shannon [mailto:[e-mail]]
Sent: Tuesday, December 10, 2013 10:16 AM
To: Georgoulias, Bethany
Cc: Bennett, Bradley; Pickle, Ken
Subject: RE: Question about Mayo Steam Plant
Thanks Bethany. We are trying to have it complete by the end of the year. I am at home and do not have the SOC with
me but my recollection is that the updated construction schedule we provided to DWR gives us a little bit more time
than that. The schedule timeframe you provided should work. If we can see a draft copy, please forward.
Thanks.
Shannon
From: Georgoulias, Bethany [[e-mail]]
Sent: Tuesday, December 10, 2013 9:58 AM
To: Langley, Shannon
Cc: Bennett, Bradley; Pickle, Ken

Subject: RE: Question about Mayo Steam Plant
*** This is an EXTERNAL email. Exercise caution. DO NOT open attachments or click links from unknown senders or
unexpected email. ***
Hi Shannon,
I am close to completing a draft of the Certificate of Coverage with supplemental monitoring requirements for NCG12. It
will include a few additional parameters through the cycle of the permit, with an initial larger sampling suite for just the
(1) first sampling period and (2) the sampling period in 2017 prior to renewal application. We expect this to be a low risk
site, and our goal is for these results to help preserve the option of continued overage under NCG12 at renewal.
I'm working with both DWR and DEMLR staff at the Raleigh Regional Office before finalizing the COC, and we need to get
final concurrence from DEMLR staff at the RRO. Dave Parnell was out on vacation at the end of November, but I will be
checking in with him and his Supervisor this week. I plan to have a COC for internal concurrence by the end of the week
and anticipate being able to issue it before the Christmas holidays, as long as DWR and DEMLR staff are in agreement.
What is the expected operation date of the Monofill, and does it reflect a certain date in the SOC?
Thanks,
Bethany
Bethany Georgouiias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and Land Resources
Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: http://portaI.ncdenr.org/web/ir/stormwater
E-mail correspondence to and from this address may be subject to the North Carolina Public Records law and may be
disclosed to third parties.

Central Files: APS SWP
12/20/13
Permit Number NCG120101 Permit Tracking Slip
Program Category
NPDES SW
Permit Type
Landfill Stormwater Discharge COC
Primary Reviewer
Bethany.Georgoulias
Coastal SW Rule
Permitted Flow
Status Project Type
In review New Project
Version Permit Classification
COC
Permit Contact Affiliation
Facility
Facility Name Major/Minor Region
Mayo Steam Plant Monofill Minor Raleigh
Location Address County
10660 Boston Rd Person
Roxboro NC 27574 Facility Contact Affiliation
Dulcie F. Phillips
821 Blaylock Dairy Rd
Owner Roxboro NC 275747527
Owner Name Owner Type
Duke Energy Progress Inc Non -Government
Owner Affiliation
Paula J. Sims
PO Box 1551
Dates/Events Raleigh NC 27602
Scheduled
Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration
09/23/13 1l (712,D { i f 4l2_1114� I a r3 % /2,01-7
Regulated Activities Requested/Received Events
Landfill operation RO staff report fequested 11/27/13
RO staff report received
Outfal I 001
12/19/13
Waterbody Name Stream Index Number Current Class Subbasin
Bowes Branch 22-58-14 C 03-02-05

f' • .i:. -
NCDENR
North Carolina Department of'Environm6nt and Natural Resot;rcbs `
Division of Energy, Mineral and Land Resources
Land Quality Section, Pat,McCrory,•Govemor
' Tracy E. Davis, PE, CPM John E. Skvada, III, Secretary
Director
'
r- December 19,'2013
To: 'Bethany Georgoulias
Y
• 1
Through: John Holley
From: Dave Parnell
Subject: STAFKREPORT i
Duke Energy Progress -'Mayo Steam Electric Plant Monofill
Permit: NCG120101 (DRAFT)
Permittee Contact: William J. Thacker .
i Duke Energy Progress, Inc.
Mayo Steam Electric'Plant
10660 Boston Road
Roxboro; North Carolina•27574
'Bethany:
I have reviewed the Draft Certificate of Coverage and other pertinent information and•offerthe,following
comments:'
-1. The draft letter and CoC permit were reviewed. As we discussed on -the phone, a minor typo.of the date
for` -Analytical MO`riitoring Requirements should be change&frorn "once during Jan" l-Jun-30; 2013" to. t
once during Jan 1- Jun 30, 2014" The letter',and COC were•easy to read and understand.
2. No Site Visit was conducted for this Report.
3. The DEMLR PRO staff understands. the"uniqueness of this facility and the justification for the use of the
General permit; as well as the method for analytigO"monitoring. We -.will work with'tlie"fa_ciliiy during-
the upcoming monitoring periods, with this understanding in,mind.
4. The DEMLR RegionaYStaff will review the Sedimentation and Erosion Control plan, whe'n•sulimitted
' assuring that all land. disturbance activities a,re.conducted' within-the`requiren.ients of'tlie DEMLR rules."
Erosion Control inspections are conducted on an' as•,needed basis.. Typically,:a site,b.eing,,developed; •is
i inspected ai least every six months by DEMLR'siaff.
1628 Mail service Center, Ratelgh, Nonh. Carolina 27699.1628
Location: 3600 Barrett Drive, Raleigh, North Carolina 27609 One
I , Phone: [phone]FAX: 91M714718 NorthCa. ollna `
. Inferrer http:poRal.ncdenr.orglwebM �"�R•���
An Equal OpportrrOy 1 Atfirmati" Action EinoMr atK Li
i

j r 5
r
Based on the information provided, the Raleigh Regional Office has no.objection to the issuance of the.NPDES
Stormwafer Permit NCG120101.
I
Signature Report Prepare r O�V`2. G� Date �`2 �._:_•:� l
- a
Signature.of Regional Supe ' Date
Cc: RRO files
r
! 1628 MaG Service Center, Raleigh, Noah CaroQna 27699.1628
Location: 3800 Barren Dd4; Ralegh, Noah Carolina 27669
One .
Phone: [phone] FAX: [phone]. T�7 1
Internet http:portaE.nodenr.oggwebllr! lNO C[ylIOIJlllc`1'
An Equal opportunity l Affi nave Action Employer Natu al U

/'A
Georgoulias,_ Bethany
From: Romanski, Autumn
Sent: Wednesday, December 18, 2013 7:49 AM
To: Georgoulias, Bethany
Subject: RE: Mayo Steam Plant CCR Monofill - NCG12 COC Issuance with Amended Conditions
Bethany,
Thank you for your consideration to review and research this. I agree with your call to pull out of the list Mn and Al,
upon further review studies did show less likely to leach and low leach -ability and only under very specific conditions.
The list is long, but well researched and applicable0
Sincerely,
Autumn
From: Georgoulias, Bethany
Sent: Thursday, December 12, 2013 9:50 AM
To: Parnell, David; Bennett, Bradley
Cc: Romanski, Autumn; Halley, ]ohn; Pickle, Ken; Smith, Danny
Subject: Mayo Steam Plant CCR Monofill - NCG12 COC Issuance with Amended Conditions
Importance: High
Dave,
I hope you had a nice vacation over the Thanksgiving holiday. I'm sure you are still catching up!
Attached are documents I've drafted in preparation to issue a Certificate of Coverage for NCG12 for the Mayo Steam
Plant Monofill under construction in Person County. It's scheduled to begin operation early next year, and we'd like to
issue it before the Christmas holidays.
This is an unusual COC because it has several amended conditions based on the material (coal combustion reside
sprayed with evaporator liquid waste from the ZLD system going in at Mayo Steam Plan). We have proposed additional
monitoring through the permit cycle, as well as two special events with a more comprehensive list. Please see the
attached DRAFT COC, This COC will be finalized before being sent to the permittee — we don't run public notices or
normally provide permittees with "draft" COC's. I just wanted you to review it.
I have some information about the Solid Waste Permit, but I assume there is also an E&SC plan in place for this site?
Dave, if it would help to talk with you and John about any questions you have, please let us know. Bradley and I can
be available to discuss. We want to make sure RRO DEMLR understands how different this site is than our usual general
permits. Does the RRO [DEMLR or DWR] have any objection to proceeding with issuance of this COC? Please let us
know your concurrence by December 1g`h
Autumn and Danny are very familiar with the Mayo Steam Plant and the variety of issues there. She has provided a lot
of information I've incorporated into my review (and by the way, please disregard the first one I sent, because I had to

correct some history in there with the help of her summary below.) THANK YOU FOR ALL YOUR HELP WITH THIS ONE,
AUTUMN!!
Autumn and Danny, please let us know your concurrence with this proposed path forward on the COC as
well. instead of putting the extra monitoring in just the cover letter, we have amended it to the actual COC and noted
the COC is an enforceable part of the permit. We are also requesting in -stream sampling results from the WQMP under
the solid waste permit be copied to RRO (see draft cover letter).
We plan to brief Tracy and Toby in DEMLR about this permit, since there's been litigation surrounding the Mayo Steam
Plant NPDES wastewater permit and so many issues with the coal fired power plants in general. Our AG's office has said
we are okay to move ahead with this one since it is a separate site.
We also know there are several landfills out there (many unlined, unlike this one — which we expect to be much lower
risk) that are accepting coal ash. Autumn has given me info. on the Halifax County Landfill after her investigations there,
and certainly there are many others. I think this will be an important aspect to consider in our NCG12 renewal, and we'll
probably incorporate additional monitoring for outfalls that receive any runoff from areas where ash was/is being
landfilled.
Thanks so much for your prompt attention to this one,
Bethany
Bethanv Geoi-goulicls. Environmenlat Engineer
N NCDI R / Division of Energy, Mineral, and [,and Resources
Storrmvater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
i 12 N. Salisbury Street. Raleigh, NC 27604
919 1807-6372 (phone); 919 1807-6494 (fax)
Webs ite: litter//portal. iicdeiir.orglwcb/ir/stormwater
ti-moil correspondence to wid.from this <addr-ess ntgr he subject to the North (,arrnln a Public Records taw emd may be disclosed to third parries.
From: Romanski, Autumn
Sent: Tuesday, December 10, 2013 2:26 PM
To: Georgoulias, Bethany
Subject: RE: Mayo Steam Plant CCR Monofill - 2009 file review question
Bethany,
This is the only signed SOC for Mayo and it took 1 Y2 years to reach a final agreement. Application dated Dec 9, 2010
with final signed June 2012. Any other SOC documents (which originate from the RRO Office and then are finalized by
the CO and Director) dated earlier than June 2012 would have been drafts from 2010 to final in 2012. The modified
permit currently in effect was effective November 1, 2009 and expired March 31, 2012. No reissuance, e-mail trail of
permit renewal being passed from permit writer to permit writer and according to Sergei- who did the final draft in
2012-2013, the permit cannot be reissued yet due the law suit?
I think Roxboro SOC draft (an application for SOC was received March 30, 2009, a second SOC draft was submitted to CO
on November 9, 2009, then another draft sent to CO on February 2, 2010, none ever signed.) Eventually, the SOC was
no longer needed by August/Sept 2010 since by then the treatment units were repaired. Additional sampling was
required by RRO during the wastewater treatment units failures, starting in March 2008. The additional monitoring
required by RRO stopped in Sept 2010 when the treatment units repairs were completed.. There is currently no SOC at
Roxboro and last permit issued was modification dated 2009 and expiration date March 31, 2012.

S
I hope providing this timeline of events associated with 2009 and 5oc applications clears up any ambiguity from the CO
file review. If not, just give a call.
Autumn

Georgoulias, Bethany
From: Romanski, Autumn
Sent: Monday, December 02, 2013 1:45 PM
To: Georgoulias, Bethany
Subject: RE: Mayo Steam Plant CCR Monofill
Bethany,
Missed you this (am) at the ITOC Meeting. I brought over the Mayo file to discuss.
Can we enforce the conditions added to the general permit via the cover letter? Is there any precedence for this?
The list of analytes — I would add Molybdenum, and Barium, if possible. l suggest this after reviewing the leaching data
published on Fly Ash, Gypsum, and FGD. Evaluating the Fote of Metals in Air pollution control residues from coo! fired
power plants Environ. Sci and Tech 2010.
The other comment is that boron (already in permit), chloride, and possibly sulfate and fluoride may concentrate in
wastewaters associated with the new evaporative process and be present. Would be good to have a baseline that's
includes these analytes.
Also going forward the Mayo investigative report identified Al, Mn, and TDS as challenges. Would be good to have Fe,
Mn, Al, as these are constituents seen in many types of Landfill settings.
TDS may be more helpful than conductivity as a general measure of pollutants of interest in dissolved form (in this case)
but understand reporting conductivity would not require running a lab sample.
Hardness would be ideal to understand — but I have yet to see any DWR movement on sampling hardness in conjunction
with metals testing.
I hope these comments are helpful and if you have any questions please feel free to contact me.
The draft permit was well written and your work to ensure data/monitoring needs are met is greatly appreciated.
Sincerely,
Autumn Romanski
AwLam N�=��.C,W.r-mipcow.
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P.awrn No�d�ildC�CtiR GW
ry,gP.iw+xwr�r a.�'
Email correspondence to and from this address is
subject to the North Carolina Public Records Law
and may be disclosed to third parties unless the
content is exempt by statute or other regulation.

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Ouality
Beverly Eaves Perdue Chares Wakild, P.E.
Governor Dee Freeman
Director Secretary
June 26, 2012
Mr. Charles M. Gates, Vice President — Power Generation 1 LD r� LL
Progress Energy Carolinas ! }
P. O. Box 1551 f� ;� r
Raleigh, NC 27602-1551
Subject: iSPECIA1 ORDER.BY-CONSENTS NC t"-=+R
Raieigl� F;,,;ie•�a!'Jf�ice
EMC SOC wQ S10-012
Progress Energy Carolinas, Inc. — Mayo Steam Electric Plant WWTP
NPDES Permit NCO038377
Person County
Dear Mr. Gates:
Attached for your records is a copy of the signed Special Order by Consent approved by the
Environmental Management Commission.
The terms and conditions of the Order are in full effect, including those requiring submittal 'of written
notice of compliance or,non�-compliance with any schedule date. .,
Pursuant to.North Carolina General Statute, I43-215.3D, water -quality fees have been revised to include
an annual fee for activities covered under -a Special Order by Consent. Progress Energy 'will -be subject
to a fee of$500.00 on a yearly •basis•while under the Order. The initial fee payment will be invoiced at a
later date, With future fee invoicing done on an annual basis.
If you have any questions concerning this matter, please contact the Surface Water Protection Section
staff in the Raleigh Regional Office at [phone] or Bob Sledge at [phone].
Sincerely,
Ch Crrl-�Cls-
Wakild, P.E -
Attachment
cc: Jeanne Phillips,'ITS
Central Files.:
NPDES Unit — SOC File ,
Raleigh Regional Office, Surface Water Protection'
Don Joe -- EPA Region 4 '
1617 Mail Service Center, Raleigh, North Carolina 27699.1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One 1 1
Phone:[phone]FAX: [phone] NO tllC�lrCilIllcl
A, 11u t www.ncwaterquaiity.org
An Equal Opppnunity 4 Altirmalive ACSan Emplaypr `

NORTH CAROLINA r:
ENVIRONMENTAL MANAGENLLNT COMMISSION
COUNTY OF PERSON
IN THE MATTER OF } SPECIAL, ORDER BY CONSENT
NORTH CAROLINA EMC SOC WQ SIO-012
CAROLINA POWER & LIGHT COMPAINY )
dlbla }
PROGRESS ENERGY CAROLINAS, INC. )
MAYO STEAM ELECTRIC PLANT }
NPDES PERMIT NCO038377 )
Pursuant to provisions of North Carolina'General Statute (G.S.) 143-215.2, this Special Order by Consent
is entered into by Carolina Power & Light d/bla Progress Energy Carolinas, Inc.,'hereinafter referred to
as Progress Energy, and the North Carolina Environmental Management Commission, an agency of the
State of North Carolina created by G.S. 143B-282,, and hereinafter referred to as the Commission:
1. Progress Energy and the Commission hereby stipulate the following:
a. Progress Energy operates a steam-
power plant facility and holdsNPDES permit
—a'
NC`00� 7 to discharge process control and industrial waste streams to Mayo, Lake,Cl�,
tWSr-V_waters of this state iii the -Roanoke River BaSin,.in,PersOn County
; ...
b. Progress,Energy installedtwet limestone forced oxidation wee t rubbers on the operating unit
at the Mayo Steam Electric Plant in response to requirements from the State of North
Carolina under the Clean Smokestacks legislation. Accordingly, Progress Energy,installed a
_ T —_ g.p—s
CFI, ue-Gas� De �s�ulfurization {FGD) wastewater settiin and a liioreactor {a biological
ffa-tment.syste`m); and`a flush`pond'to treat wastewater generatedby the recehtly'added wet
scnilibers.
a
C. Since installation of settling -pond, flush pond and bioreactor Progress Energy has,
• upgraded the ash handling system to handle fly ash at the plant as dry ash, except
during maintenance outages of the dry ash system, #o reduce pollutant loading to the
outfall;
• investigated treatment modifications and optimizations which have resulted in:
- installation and use, on an as needed basis, of a. chemical injection system to
aid in the settling of mercury and other constituents in the settling pond;
addition of a pH adjustment system to the inlet of the bioreactor to aid in
keeping the pH of the wastewater at an optimum level for maximum
treatment efficiency;
ary hydrocyclones to reduce the amount of
placing into service second
suspended solids in the blowdown to the"settling pond.

EMC SOC WQ SIO-012
p. 2
d. Since the introduction of treated.l'GD wastewater into the system and the effective, dates for
certain effluent limitations, sampling of effluent from Outfall 002 (Ash Pond Treatment
System) has indicated the overall treatment system is unable to consistently meet final
effluent limits for Mercury Boron, Thallium Manganese and Selenium.
e. Noncompliance with final effluent limitations constitutes causing or contributing to pollution
of the waters of this State named above, and Progress Energy is within the jurisdiction of the
Commission as set forth in G.S. Chapter 143, Article 21.
f. Compliance will require study, investigation'of.the circumstances and construction.'
g. .Progress Energy has committed to providing necessary funding; for, planning, designing, and
constructing an enhanced wastewater handling, treatment and disposal system, which, once
constructed and operated for a period of,time, Will be sufficient to -manage wastewater to such
W an extent that the discharge from the Mayo Steam Electric Plant will be able to comply with
final effluent limits.
h. Since this Special Order is by consent, neither party will file a petition for a contested case or
for judicial review concerning its terms.
2. Progress Energy; desiring to attain full compliance with the,permit and final effluent limitations
(permit identified in paragraph La. above), lierebyagrees to do the following:
a. Undertake the following activities in accordance with the indicated time schedule described
in Attachment A:°
(1) Investigations.. Conduct investigations into available treatment operations, measures or
technologies that once constructed and operated for a period of time, will be expected to
provide measures to such an extent that the pollutants discharged from the Mayo Electric
Generating Plant will be significantly reduced,and the discharge will be able to comply -
with final effluent limits. - Progress Energy must communicate in writing the results of the
investigations whereby a,report of the proposed changes and installation of zero liquid
discharge for certain wastewaters will illustrate how.the,reduction of the pollutants from
the Mayo Electric Generating Plant NPDES discharge will be achieved (first action item
of Attachment A). -Progress Energy is to'submit a .written investigations report to the
Raleigh Regional, Supervisor,. Division of -Water Quality, Surface WaterProtection
Section; 1628'.Mail Service Center,. Raleigh, NC,27699-1628,,and one„copy must be
mailed to the Point Source Branch, Division of Water Quality; 1617,Mail Service Center,
" Raleigh,.NC 27699-1617. 1 1. - r 1.% `
(2) Construction. Based upon the'data collection,,investigations,and analyses noted in 2.a. (1)
above, begin construction of new.treatment facilities including zero liquid discharge for
certain.wasteivaters and modification of existing facilities or processes as appropriate and
secure all applicable permits'for.such activities in accordance with the schedules set forth
in -Attachment A. Progress�Energy is to submit a construction schedule (second action
item in Attachment A) to,the-Raleigh Regional Supervisor; Division of Water Quality,
Surface Water Protection Section, 1628 Mail. Service Center, Raleigh, NC 27699-1628,
and one copy must be mailed to the Point Source Branch,. Division of Water Quality,
161-7 Mail Service'Center, Raleigh, NC 27699-16I7. This -schedule -must deiail-major
2nstniction-nailestones.and:adlrere.to.the_schedules set forth in Attachment A,( ludii7g
the -end -date •ofifiis`Order:

( - 51
EMC SOC WQ S 10-012
p. 3
(3} Permit modification. Progress Energy is required to submit NPDES permit modification
' request(s)prior to decommissioning the existing treatment Facilities and/or the online use
of new,treatment unit(s)/system(s): Submit.permit modificationrequests to -the Point
Source Branch, Division of Water Quality, 1617 Mail Service Center; Raleigh,,NC
27699-1617.
b. Undertake the following activities in accordance with.the indicated time schedule established
in Attachment A and Attachment B.
(1) Ouarterly Progress Reports ..'Progress.Energy will submit quarterly progress reports,
detailing the work and activities undertaken with regard to schedules and activities
included -in this SOC. The reports are to be submitted as follows: one copy must be
mailed to the Raleigh Regional Supervisor,. Division of Water Quality, SurfaceVater
Protection -Section, 1628 Mail Service Center; Raleigh, NC 27699-1628, and one copy
.must be mailed to -the Point Source Branch, Division of Water Quality, 1617. Mail Service
Center, Raleigh, NC 27699-1617. The quarterly reports are due to be subinitted no later
than January 31, April 30, July 31 and October 31 for the duration of this order or until
permit compliance is achieved.
(2) Final Written Account. The purpose of this Final Written Account is to demonstrate the
reduction of pollutants discharged from the Mayo Electric -Generating Plant'and the '
respective ability of the new -wastewater facilities to,meet effluent limits.. Specifically,
Progress Energy must illustrate"the differences in the waste stream characteristics (using
both concentration and mass loadings) of Mercury, Selenium, Boron, Manganese,and
Thallium between the current waste stream and the waste stream at the conclusion of this
Order. This Final Written Account shall provide the means by which Progress Energy
will demonstrate compliance with the NPDES-Permit for. the:purposes,of this Order.
The Final'Written Account must be submitted,to the Raleigh Regional Supervisor,
Division of Water Quality; Surface Water Protection Section, 1628 Mail Service Center,
'Raleigh, NC 27699-1628; and one copy must be mailed to the, Point, Source, Branch,
' Division of Water Quality, 1617•Mail Service Center, Raleigh.-INC 27699-1617 in
accordance with Attachment A.
(3) Constniction�Completion: `BLgin-and,corripl"te construction of zero liquid discharge.and
modifcd-wizstewater treatinent-facilities'or other measures--in'accordance-with-th
scheme'described=in.Attachmeut.As Provide written notice within 30 days.of
construction completion` to the`Raleigh Regional, Supervisor, Division of Water Quality,
Surface Water Protection Section, 1628 Mail Service Center, Raleigh, -NC 27699-1628,
and one copy must be mailed to the Point Source Branch,'Division of Water Quality,
1611 Mail Service Center; Raleigh, NC 27.699-1617 in accordance with Attachment A.
(4) Interim1imits. Comply with all terms andconditions of the NPDES Permit except those
effluent limitations identified as interim limitations -in Attachment,B (Mercury, Selenium,
Boron, Manganese and Thallium). During the'tirne the SOC is effective, Progress Energy
shall comply with the interim effluent -limitations for'Mercury, Selenium, Boron,
Manganese and Thallium as listed in Attachment'B: A written notice must be submitted
.no later than fourteen (14) calendar days after failure to comply with any Interim Limits
in Attachment B. Written notice must be submitted to the Raleigh Regional Supervisor,
Division of Water Quality, Surface Water, Protection, Section, 1628 Mail Service Center,
Raleigh, NC 27699-1628. A.copy must also be mailed to the -Point Source Branch,

0
EMC SOC WQ S 10-012
p. 4
Division of Water Quality, i617 Mail Service Center, Raleigh NC 27699-1617. The
written notice shall minimally include a statement of the reason(s) for noncompliance and
remedial action(s) taken.
(5) Written Notice. No later than fourteen (14) calendar days after any date identified.for
accomplishment of any activity listed in this paragraph [paragraph 2.1 and in the schedule
set forth in Attachment A, submit to the Raleigh Regional Supervisor, Division of Water
Quality, Surface Water Protection Section, 1628 Mail.Service Center, Raleigh, NC
27699-1628 written notice of noncompliance,'therein if applicable. A copy'must be
mailed to the Point Source Branch, Division of Water Quality, 1617 Mail Service Center,
Raleigh NC 27699-1617. The notice shall include a statement of the reason(s) for
noncompliance, remedial action(s) taken, and a statement identifying the extent to which
subsequent dates or times for, accomplishment of listed activities maybe affected.
(6) Effluent Limits. Attain compliance with effluent limitations in accordance with the
schedule described in Attachment A.
3. Progress Energy agrees that unless excused under [paragraph 4.], it will pay the.DWQ, by check
payable to the North Carolina Department of Environment and Natural Resources, stipulated
penalties according to the following -schedule. , - ,
Failure to provide written investigations report [2.a. (1)]
Action item (I) in Attachment A
Failure to submit construction schedule [2.a. (2)]
Action' item (2) in'Attachment A I
Failure to submit quarterly progress, reports as [2.b. (1)]
Actabn items (3) and (S) in Attachment A
Failure to -provide Final Written Account [2.b. (2)]
Action item (S) in Attachment A
Failure to begin construction; provide a written notice
of construction completion as described in Attachment A'
[2.b.(3)] Action items (3) and (4) in Attachment A
Failure to comply with Interim Limits 2.b. (4) and
Attachment B
Failure to sample analytes at frequency required
(Mercury, Selenium, Boron, Manganese and Thallium
in Attachment B)
Failure to provide Written Notice of noncompliance
[2.b. (5)]
$1,000.00' per day.
$1,000.00 per day.
$1,000.00 for the first violation;'
doubles with each subsequent
assessment for late reports. -
$1,000.00,per. day.
$1,000.00 per day.
5 -
.$500.00 per occasion.
-.$500.00 per occasion
$200.00 per day for each day
beyond fourteen calendar
days past schedule date. ,

EMC SOC WQ S10-012
P. 5
Failure to achieve compliance with $10,000.00
NPDES permit by deadline established in Attachment A
Action item (5) in Attachment A
Failure to meet schedule dates, listed in Attachment A $1,000.00 per occasion
} other than those referenced above.,.
4. Progress Energy and the Commission agree stipulated penalties are not due if Progress Energy
satisfies the Division of Water Qualitysthat noncompliance, was caused solely by:.
a. An act of God;
b. An act of war;
c. An intentional actor omission of a third party, but this defense shall not be available if the act
or omission is that of an employee or agent of Progress -Energy or if the. actor omission occurs
in connection with a contractual relationship with Progress Energy;
d. An extraordinary event beyond Progress Energy's control. Contractor delays or failure to
obtain funding will not be considered as events°beyond Progress Energy's:.control; or
e. Any combination of the above causes.
Failure within thirty (30) days of receipt of written demand to pay the penalties, or challenge
them by a contested -case petition pursuant to G.S. 150B-23, will be grounds for a collection
action, which the Attorney General is hereby authorized to initiate. The only issue in such an
action will be whether the thirty (30) days has elapsed.
5. gNoncompliance.with the terms of this Special Order by. Consent is subject to enforcement action
in'addition to the above stipulations, including injunctive relief pursuant to G.S. 143-215.6.C.
6. This Special Order by Consent (including Attachments) and any terms or conditions contained
herein, hereby supersede any and all previous Special Orders,'Enforcement Compliance Schedule
Letters, terms, and conditions contained therein issued in connection with NPDES permit
NC0038377. In the event of a permit modification or renewal,,any applicable effluent limit or
monitoring requirements contained therein shall supersede those contained in this Special Order
by Consent, except as modified in paragraph 2.b.4 (Attachment B) above.
7. This Special Order by Consent may be amended provided Progress Energy has made good faith
efforts to comply with the provisions of this Special Order_ by Consent.
8. Progress Energy, upon signature of this Special Order by Consent, will be expected to comply
with all schedule dates, terms, and conditions of this document..

r.
EMC SOC WQ SIO-012
p. 6
This Special Order by Consent shall expire 365 days after completion of the last permitted
construction project and achievement of permit limits OR no later than September 1, 2017.
For Progress Energy Carolinas, Inc.:
r.�1a7/Q
Charles M. Gates Date
Vice President — Power Generation - PEC
For the North Carolina Environmental Management Commission:
—1�4-4alAhk
arles Wdkild, P. :;'Director Date '
Division of Water Quality

CMC SOC WQ S l 0-012
p.
7
Attachment A: Schedule
Re ortfu
Action Item
Start
End
requirements
Provide written
indestisation`s report
Within 45 days of the
to RRO and Central
1 investi ations
effective date of this
180 days from Start
Office within 225
Order
days of the effective ,
-date of this order see
2.a. 1.
Within 60 days'of'
dJ
DWO'approval of
Submit pro
'(2)Submit Construction
written investigations
schedule to RRO and -
Schedule Schedule
report from 2.a. 1.
-Central•Office scei
submit the construction
2.a. 2
schedule.
According to
construction schedule
Construction status
Within 90 Days of
not to exceed 1000 days
must be
obtaining all applicable
from obtainina ail
communicated in
(31Begin Construction
permits and
permits and
quarterly. report
or
authorizations
authorizations or at
2 b 1 and 3�j
maximum the end date
of this order
Upon com letion of
Provide notice to the
construction written
4 End Construction
Within Dons
RRO and Central
notice must be
uction
completing construction
Office
provided to DW
2.b. OIL
O erational Status
must be
communicated in
uarter!y report
12.b.(1)1. Provide
(5)Achieve Compliance
365 days after
Final Written
with NPDES Permit
construction'is
Account ILAL2
Limits
completed.
illustrating pollutant
loading reduction
12.b.(2)1. within 545
days of construction
completion.

EMC SOC `VQ S 10-012
P. 8
ATTACHMENT B
INTERIM EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning upon the effective date of this SOC and Iasting until expiration, the
following interim (SOC) limits associated with Outfall 002 (Ash Pond Treatment System) have
been established. Discharges interim limits and monitoring frequency from Outfall 002 are
specified below:
Outfall
'Parameter
Interim Limitations
Monti
Average
b''
Dai1V Maximum
(lbs/day)
Monitorin
Frequency
Sample
Type
002
Flow
Contiriuous
Recording
002,
Mercury
0.0037
0.0095
Weekly
I Grab
002
Selenium
4.755
6.461
Weekly
Composite
002 "
Boron
'590.7
683.0
Weekly
Com o'site
002
'Man anese
1. 223
29.4
Weekly
'Composite
002 '
Thallium
0.056
0.089
Weekly
Com oAte
Superscripts:
1'. Compliance shall be evaluated using the daily mass loading calculated from analyses
performed during a calendar day. - • C . .
2_ Calculation for Daily Mass Loading = Total Daily Discharge Flow from Outfall 002
(defined as the average flow during a calendar day, or any 24 hour period that reasonably
represents the calendar day for the purposes of sampling) in MGD. x Parameter '
Concentration in mg/L (defined as the average measurement of the pollutant over u day,
see Item 3. below - composite sample) x 8.34 'pounds/gallon.
3. Composite gample=A samplecollected over a 24-hour period by continuous sampling, a
single, continuous sample.coliected over a 24-hour period proportional to the rate of
flow.
4. The monthly average shall be calculated as the arithmetic mean of all daily mass loadings
reported during a calendar.month. This is calculated as the sum of all daily mass.
loadings (superscript 2 above) divided by the number of days results are reported for the .
parameter during'the calcndar month. '
S. Flow shall be monitored continually except for the infrequent times when there may be
maintenance activities on the flow device. To ensure accurate calculations of pollutant
loadings,. Progress Energy will be required to install'a recording, totalizing flow
measurement device at outfall 002 within 90 days of the effective date of the SOC.
6• EPA method 1631(low level Mercury) and appropriate clean hands sampling protocols
are required.

f
l'
4
NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
SPECIAL ORDER BY CONSENTA
EMC SOC WQ S I 0-012
ADDENDUM 1.0
On March 2, 2012, the Division of Water Quality published a public notice of intent to issue a State
Consent Order for Progress Energy Carolinas, Ine.'s Mayo Steam Electric Plant, that discharges treated
wastewater to Mayo Lake in.the Roanoke River Basin under the authority of NPDES permit NCO03 8377.
Comments on the proposed Order received by April 6, 2012 were considered in the final determination.
Accordingly, after review of the public comments, items listed in this addendum to the SOC (WQ S 10-
012) are incorporated as conditions of this Special Order by Consent.
1. Additional lake and'fish tissue monitorin . As a part of this order Progress Energy Carolinas,
Inc. must comply with all terms and conditions of Attachment C, which containsadditional lake
water quality and fish tissue monitoring. Sample locations are depicted on Attachment D - map.
2. Reportinrt"'The results of the monitoring noted in 1. above must be compiled in a report to be
submitted by October lit of each calendar year until the expiration of the SOC. A copy -of the
report must be submitted to NC DWQ Raleigh Regional Office..'in addition, copies of the reports
are to be sent to:
NC Wildlife Resources Commission Occupational & Environmental. Epidemiology
1721.Mail Service Center NC DHHS - Division of Pdblic Health •
Raleigh NC 27699-1721 1902 Mail Service Center
(attention: Shari L. Bryant) Raleigh, NC 27699-1902
(attention: Dr. Kenneth M. Rudo, Ph.D.)
lf.monitoring indicates significant deviation(s) from historical or baseline data, or yields
substantive individual values, this SOC may be reopened by the Director of the Division of Water
'Quality to.m4fy the monitoring requirements described in this addendum.
3. Signage. Progress Energy will provide and maintain signage in both English and Spanish
discouraging fishing in/along the cove containing the NPDES outfall. Signs shall be erected in
and'along the cove containing the NPDES outfall,.and at the Mayo Reservoir public boat access.
For Progress Energy Carolinas, Inc.:
Jr es M. Gates Date '
Vice President — Power Generation - PEC
For the North Carolina Environmental Management Comrission:
Charles Wakild WDDir—ec:rt;r—
Division., of Water Quality
i

SPECIAL ORDER BY CONSENT:
E M C SOC, WQ S107012
Attachment C — Monitoring Mayo Lake in,the Roanoke River Basin, Person County
Water Quality Monitoring Variables*:
pH
Conductivity
Water Chemist Monitorinjz Variables*:
Total Dissolved Solids Chloride Sulfate Trace Elements total
Calcium Sodium (lower reporting limit's in parentheses)
Boron (50 µg/L) t
Mercury (0.5 ng /L)
Selenium (0.5 µg JL)
Tlialliutn (0.1 µg 1L)
Manganese (0.5 µg /L) ,
*Sampling locations for Water Quality and Water Chemistry Monitoring Variables listed above are depicted on the
Mayo Reservoir Sampling Location Map as locations B, E, and G. Samples are to be collected during alternate
calendar months (February, April-, June, August, October, December), each calendar year the SOC is in effect.
Fish tissue monitoring **-
Species Tissue Total number of fish per location
Bluegill (Lepomismacrochirw) Muscle 4
Largemouth bass (Microprenrs salmoides) Muscle 4.
Catfish' Muscle 4
' Brawn bullhead targeted, but other species may be included depending upon availability
** Fish species are to be collected and tested annually each calendar year the SOC is in effect, for the following
anaiytes: mercury, thallium, and selenium.'Fish collection locations are depicted on Mayo Reservoir Sampling
Location Map as locations B, E. and G
A Biological Study Plan for Mayo Lake was approved by DWQ on March 14, 2012. Portions of
this SOC Addendum complement or are coincident to the approved annual 2012 Biological
Study Plan. However, this SOC Addendum is not a modification of the approved Biological
Study Plan. Conversely, future modification(s) of the Biological Study Plan will not change the
conditions of this Addendum to the SOC.

EMC SOC WQ S1'0-012
Progress Energy Carolinas- Inc. — Mayo Steam Electric Plant :.
Attachment D -'Mayo Reservoir Sampling Location Map
• I 1,
Mayo Greek
Ash
Pond
Plant
She
0 1 2 _ 3
Kilometers
0 1 2
Miles
3 U 1
us 501
H
t�
i •-,in2 Mayo 3loam
k
'', !^t • :�.' !';-A Electric Pfan1
.» .. ........... .... , S y fir,
NORTH CARQLINA

Irrterlm Llmha esceedwKe.
r tt" Vlolat" 't +� .1+'''�
. tl,i� '
Interim llmfh exceedance
Verbal/Wrftot Ndtke-/in Ia da
Caux/Doamematlon
- S+•
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•12
fluart R Due'
Nacelrad.
Start fn
fndt
Prwlde Wrtttm
R
4f2
I0131/2O17
10P512013
R1912O12
2/5/2013
IV2012022 and 11/3017012 NOV-7013-LV-0776
12/5/2012
Data Subm"ed for Nalunl Cause
2/5/2013
3111/
1/31/0013
1/18/2013
12131/2012
NOV-2013{V•Zn
Vi8j2M3
Data Submitted far Natural Cause
AM12019
4/23/20t3
5/31/2013
NOV•2OlMV-0037;Stlpulatad Pvm4ty Paid before lssuenta
6/21/2013
Outage -Equip-mm Cloardng
7/31/2D13
7/19/2013
10131/2033
1l31/701a
1/30/2014
7131/2014
AFMlra MMFPe
f �I-LY oc—,.ac�a S1.1 f rsSti� �r✓nIK�
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OCT ac ILA
5;6r)As-tOzLcD ot;t .3�,ao�a (� �t r

Georgoulias, Bethany
From: Georgoulias, Bethany
Sent: Wednesday, November 27, 2013 11:45 AM
To: Bennett, Bradley; Pickle, Ken
Cc: Parnell, David; Romanski, Autumn
Subject: Mayo Steam Plant CCR Monofill
Attachments: NCG120101_N0I.pdf; NCG120101_COC.docx; NCG120101_cover!etter.docx; NCG120101
Review.docx
Bradley and Ken:
Let's schedule some time to talk about what I'm proposing as "conditional coverage" under General Permit NCG12 for
the Mayo Monofill early next week. I have attached a draft COC and draft cover letter. I'm also attaching my review
summary. I have included some information about rationale in the draft cover letter to the permittee as well, but
maybe we should omit that and simply retain that in my review document. Any thoughts on the text would be
helpful. Bradley, given the site and issues surrounding these facilities, I plan to have you sign the COC and letter when
it's issued.
Dave and Autumn:
Attached is a copy of the NOI from Duke Progress Inc. for this new CCR Monofill. I've already talked with Autumn about
it a couple of times since she's familiar with the site and the Wastewater Permit/SOC for this site. We are proposing to
move ahead with a general permit instead of an individual permit, but with additional monitoring requirements.
The details and rationale for my proposed monitoring are outlined in my review summary. This serves as our request to
the Raleigh Regional Office for concurrence to move forward with a COC to cover this site under NCG120000, with the
additional conditions. The monofill is scheduled to begin operation very soon —if not already —as a result of
stipulations in the SOC. We appreciate your feedback and response about whether to move ahead as soon as you are
able to give it attention.
Thanks!
Bethany
13elhany Gcorgonlias, l_nvironwewal E'n�,ineer
NCDENR / Division of Energy, Mineral, and Land Resources
Storrnwatcr Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Strect. Raleigh. NC 27604
919 1 807-6372 (phone); 919 1 807-6494 (fax)
Website: htti2://portal.ncdenr.oi-,e/web/lr/stormNvater
E-mail correspondence !o and jronr this address near he subject to the North (.'arohna Puhlic Records law awl may he disclosed io third parlies.

Georgoulias, Bethany
From: Chernikov, Sergei
Sent: Friday, November 15, 2013 7:40 AM
To: Georgoulias, Bethany
Subject: RE: Fish tissue sampling for Mayo Steam Plant in renewal permit
Bethany,
That is correct, below is the special condition that outlines the requirements. The sampling plan will be negotiated
between the ESS and Duke, the sampling locations will be defined in the plan.
Please let me know if you have any other questions.
Thank you!
Sergei
A. (10) FISH TISSUE SANIPLING NEAR ASH POND DISCHARGE
The facility shall conduct fish tissue monitoring once during the permit term and submit the results with the
NPDES permit renewal application. The objective of the monitoring is to evaluate potential uptake of pollutants by
fish tissue near the.t h Pond -discharge. The parameters analyzed in fish tissue shall he esraiuc, selenium, thallium
and me- rcuryfThe monitoring shall be conducted in accordance with the Sampling Plan approved by the Division.
Sergei Chernikov Ph.D.
Environmental Engineer II
Complex NPDES Permitting Unit
Tel. [phone]
Fax [phone]
Mailing Address: 1617 Mail Service Center, Raleigh, NC 27699
Physical Address/Express Mail: 512 N. Salisbury St., Raleigh, NC 27699-1617
From: Georgoulias, Bethany
Sent: Thursday, November 14, 2013 9:43 AM
To: Chernikov, Serge!
Subject: Fish tissue sampling for Mayo Steam Plant in renewal permit
Hi Sergei,
I know that the renewal NPDES permit for Mayo Steam Plant (that stormwater is coming out of) should be getting a
requirement for fish tissue sampling for Hg and Se. Is that the case? Could I find out from you where those sampling
points will be? Are they in Bowes Branch?
We are working on the CCR Monofill stormwater permit, and I'm trying to get a handle on all the surface water/fish
tissue monitoring that will be happening in the vicinity.
Thanks,
Bg
Bethany Georgoutias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and Land Resources

Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: htt :// ortal.ncdenr.oi-* web/h,/stormwater
E-mail correspondence to and.fronr this address mqr he subject ur the North (,:arolina Public Records law arrd may be disclosed to third padres,
f•
k

VIjI
Coa[ Ash References:
Literature: Coal Ash Leachate, Pore water/lake sediment
EPA Chemical Specific Data: See copy
Unlined Landfills: See Copy
Human and Ecological Risk Assessment of Coal Combustion Waste: See EPA Site (this document is
several hundred pages)
Reviewing the information available, monitoring of the following analytes should be considered:
Ph
Conductivity- could be used as an indicator of issue, if a base rain event conductivity could be
determined and the metals present were known- Require metals sampling data for permit application.
COD- same as conductivity
*Review the following analytes if have the metals and hardness data:
Metals: As, Se, Sb, Mo, 8, Cr, Cd, Ni, Tl, and Hg
Hardness (Ca), Li

Environ. Sci. Technol. 2010, 44, 7351 7356
Evaluating the Fate of Metals in Air
Pollution Control Residues from
Coal -Fired Power Plants
SUSAN A. THORNELOE,'-t
DAVID S. KOSSON,*
FLORENCE SANCHEZ,*
ANDREW C. GARRABRANTS,t AND
GREGORY HELMS§
National Risk Management Research Laboratory, U.S.
Environmental Protection Agency, Research 'Triangle Park,
North Carolina 27711, Department of Civil and
Environmental Engineering, Vanderbilt University, Nashville,
Tennessee 37235, and Once of Resource Conservation and
Recovery, U.S. Environmental Protection Agency,
Washington, D.C. 20460
Received May 14, 2010. Revised manuscript received
August 4, 2010. Accepted August 18, 2010.
Changes in emissions control at U.S. coal-fired power plants
will shift metals content from the flue gas to the air pollution
control (APC) residues. To determine the potential"fate of"-J
metalsthatare capturedthroughuse ofenlianced APC practices,
the leaching hehavior_of_73 APC-residues-was.characteriied"
following the approach of the Leaching Environmental Assessment
Framework. Materials were tested over pH conditions and
liquid —solid ratios expected during managementvia land disposal
or beneficial use. Leachate concentrations for most metals
were highly variable over a range of coal rank, facility
configurations, and APC residue types. Liquid —solid partitioning
(equilibrium) as a function of pH showed significantly different
leaching behavior for similar residue types and facility
configurations. Within a facility, the leaching behavior of
blended residues was shown to follow one of four characteristic
patterns. Variability in metals leaching was greater than the
variability in totals concentrations by several orders of magnitude,
inferring that total content is not predictive of leaching
behavior. The complex leaching behavior and lack of correlation
to total contents indicates that release evaluation under
likely field conditions is a better descriptor of environmental
performance than totals content or linear partitioning
approaches.
Introduction
U.S. coal-fired power plants generated 320 gigawatts of
electricity in 2008, producing 136 million tons of coal ash in
the process (1). The annual amount of coal combustion
residues (CCRs) generated is expected to growwith increasing
demand for electricity and the resulting coal consumption
(2). Environmental and health concerns associated with air
emissions haveled towider implementation of multipollutant
control to reduce air emissions from coal-fired power plants
' Corresponding author phone: [phone]; e-mail:
'[e-mail].
' National Risk Management Research Laboratory, U.S. EPA.
' Vanderbilt University.
4 Office of Resource Conservation and Recovery, U.S. EPA,
(3-5). These air pollution control (APC) technologies include
the use of selective catalytic reduction (SCR) for postcom-
bustion NO, removal, electrostatic precipitators (ESPs) or
fabric filters for particulate capture, sorbent injection for
increasing mercury (Hg) control, and flue gas desulfurization
(FGD) or other scrubber technologies to reduce acidic gases
in the stackemissions. The Supporting Information (Sp shows
how these technologies integrate into the coal combustion
process. With the promulgation of the U.S. EPA's Clean Air
Interstate Rule (CAIR) (3-5), over half of the U.S. coal-fired
capacity is projected to be equipped with SCR and/or FGD
technology by 2020 (5, 6). The current practice of seasonal
use of postcombustion NOx control will likely be extended
to year-round implementation. In addition, coal-fired power
plants, the largest source of anthropogenic Hg emissions in
the U.S. (7), will likely expand the use of activated carbon
injection (ACI) (8-10) to reduce Hg stack emissions.
Changes in APC technologies will result in a greater
amount of residue generated for each unit of electricity
produced and an overall increase in the total content of Hg
and other hazardous air pollutants in fly ash, FGD residues,
and other APC residues (3, 8). The mobility of metals may
be altered as a result of changes in material pH, carbon and
chloride content, and interaction with the broader class of
coal combustion residues (CCRs), for example, pyritic coal
rejects from coal washing or high -sulfur coal rejects (11-14).
Also, APC residues may be comanaged with residues, boiler
slag, bottom ash, and other wastes from electric utilities
(11, 15). Emerging APC technologies are likely to create new
APC residues to be managed such as spray dryer ash or spent
sorbents from Hg or postcombustion NO, control technology
(11):
In many cases, the properties of the APC residues and
other CCRs (e.g., bottom ash and boiler slag) make them
suitable for use as a replacement for natural resources or
primary materials in a variety of industrial applications,
reducing emissions from mining and production of those
raw materials (16). As of 2008, 44% of CCRs was used in a
range of applications including building roads, structural
fill, mine reclamation, snow and ice control, and in the
production of cement, concrete, wall board, and even
toothpaste (1, 17). A breakdown of the production and
utilization ofAPC residues ispresented in the SI. Fora residue
to be a candidate for beneficial use, it must meet the
performance requirements of the raw material it is replacing
while not adversely impacting human health and the
environment. Currently, there is wide disparity among the
states as to how to establish if potential beneficial use
applications are protective of human health and the envi-
ronment (16, 18, 19). There are clear advantages to reuse of
fly ash and other CCRs, as long as evaluation approaches are
in place to ensure that one environmental release (i.e., air
emissions from power plants) is not being traded for another
(i.e., leaching of metals from coal ash through land disposal
or use in engineering and commercial applications) (7).
Environmental Assessment Methodologies. Historically,
estimating metal release for environmental assessment has
been based on the results of single -point extraction tests
designed to simulate a single "mismanagement" or near -
surface disposal scenario (20, 21). However, these single -
point tests have come under significant criticism by many,
including the U.S. Environmental Protection Agency (EPA)
Science Advisory Board (14, 22, 23) and the National Academy
of Sciences (24), due to a lack of critical data collection, overly
broad application, and limited mechanistic understanding.
Single -point tests often estimate metals release under
10,10211051016558 0 2010 American Chemical Society
Published on web W/3112010
VOL. 44, NO. 19, 2010 1 ENVIRONMENTAL SCIENCE & TECHNOLOGY - 7351

leaching conditions that are unlikely to occur in actual
disposal or reuse situations. Recognizing the importance of
having a robust, mechanistic environmental assessment
methodology, U.S. EPA conducted a review of available
methods, sought Science Advisory Board input on the
suitability of the available leaching test methods, and
ultimately selected the tiered assessment approach (25) of
the Leaching Environmental Assessment Framework (LEAF)
(26). The test methods and interpretation protocols recom-
mended in LEAF provide an integrated approach for evalu-
ating leaching behavior of materials using a tiered approach
that considers pH, liquid -to -solid ratio (LIS), and waste form
properties across a range of plausible field conditions (23, 2.5).
APC Residue Characterization Project. As part of a
research project to investigate the fate of Hg and other RAPS
resulting from more widespread use of advanced APC
technologies, over 70 APC residues from 34 coal-fired power
plants were sampled and characterized for leaching behavior
as a function of final eluate pH and LIS following the LEAF
test methods with the results published in a series of reports
(12, 14, 23, 27). The objective was to understand the leaching
potential of the residues generated by enhanced APC
technology and ensure their appropriate disposal or reuse.
The data from this project represent the largest collection of
comprehensive characteristic leaching data to date. The data
set is not considered statistically representative of APC
residues currently being generated given that there are over
600 U.S. coal-fired power plants and continual changes in
design and operation which can impact leaching charac-
teristics. However, the data have been found to be adequate
in suggesting trends in leaching behavior that relate to
differences in materials types, APC technology, and coal rank.
This paper provides an overview of results from o gn o ng
�research'to'characterize the fate of Hg, anantimony (S6), arsenic
(As), barium (Ba), boron_(B), cadmium,(C_d), chromium (Cr);
molybdenum (Mob selenium (5e)and thallium (Tl) to APC
Cresidues-across the range of potential uses. Chara' cteristic
le`acliff g'behavior of Hg, As, B, Sb, and Se are presented as
a function of eluate pH for residues from facilities with
different APC configurations, coal ranks, and management
practices. -
Experimental Section
APC Residues. Samples of APC residues spanning the range
of coal rank and likely APC technology configuration, were
collected for characterization and categorized into the
following groups: {aj'fly ash_ (ti)�FGD gypsum,_(c) "other"
u lusm fi.
FGD residues, primarily calcite,'(d)"blended APC
residues"as managed "'(i.e., miXtures of flyash and scrubber
residues %iith.or_without, add ed.lime•or-mixtures•of°fly•ash�
nannd-g),psum)`and-(e) wastewater filter cake.
Facility Configurations. Except for a few facilities, the
identities of the power plants providing APC residue samples
were not disclosed and codes (e.g., Facility K) were used
when referring to these facilities. Of the 34 facilities providing
samples for characterization, the majority burned Eastern
bituminous coal while a few facilities burned sub -bituminous
Power River Basin coal and one facility burned lignite. Eastern
bituminous coal is a high rank coal, whereas both lignite and
sub -bituminous coals are considered "low rank" coals with
the differences in the coal ranks including sulfur content,
energy content, and trace metal content. Many facilities
collected fly ash through cold -side ESPs (i.e., downstream of
the air preheater) or hot -side ESPs (i.e., upstream of the
preheater). Of the 34 fly ash samples collected, seven were
from facilities utilizing sorbent technology for Hg control.
Total Content Analysis. Total content of the APC residue
samples was performed following EPA SW-846 Method 3052
(28) which utilizes high temperature and pressures to digest
the solid matrix into a mixture of three strong acid s—hyd rofluoric
(HE), nitric (HNO3), and hydrochloric (HQ. Analysis of
digests was performed using inductively coupled plasma (ICP)
mass spectroscopy according to SW-846 Method 6020. Total
content is reported on the basis of a kilogram of solid material.
Leaching Test Methods. Leaching characterization was
conducted by following the test method approaches pre-
sented in LEAF and drafted for review by the U.S. FPA. The
two methods used in the project were precursors of following
two methods currently undergoing validation by the U.S.
EPA for subsequent inclusion in SW-846 and intended to
characterize the liquid —solid partitioning at conditions
approaching equilibrium as a function of either final extract
PH or L/S.
Method 1313: Liquid —Solid Partitioning as a Function
of Extract pH for Constituents in Solid Materials using a
Parallel Batch Extraction Procedure. This equilibrium -based
leaching test is designed to provide the liquid —solid parti-
tioning (LSP) curve of constituents as a function of eluate pH
and consists of nine parallel batch extractions of a particle -
size reduced solid material in dilute acid or base in order to
achieve final extract pH values at .specific target values.
Particle -size reduction facilitates the approach to I./S equi-
librium during the test duration. Subsamples of solid material
equivalent to a specified dry mass are added to nine extraction
bottles and followed by predetermined volumes of dilute
acid. Volumes of acid and base are based on the specified
target pH value for each extraction and the results of a titration
curve pretest. Deionized water (DI) is added to supplement
the acid or base volume to a final I.IS of 10 mL/g-dry. The
vessels are tumbled end -over -end for a contact time de-
pendent on the particle size range of the solid. Liquid and
solid phases are roughly separated via settling or centrifuga-
tion prior to measurement of pH and conductivity. Analytical
samples are clarified by pressure or vacuum filtration and
saved for chemical analysis by ICP optical emission spec-
trometry (SW-846 Method 6010). The eluate concentrations
of constituents of interest are reported and plotted as a
function of pH and may be compared to quality control and
assessment limits for interpretation of method results.
Method 13I6: Liquid —Solid Partitioning as a Function
of Liquid —Solid Ratio for Constituents in Solid Materials
Using a Parallel Batch Extraction Procedure. This equi-
librium -based test method is designed to provide LSP of
inorganic constituents at the natural pH of the solid material
(i.e., no acid or base addition) as a function of the ratio of
the amount of liquid per unit solid mass. At low LIS, eluate
concentrations provide insight into the composition of pore
solutions of either granular beds or low -permeability ma-
terials. This method consists of five parallel extractions of a
particle -size reduced solid material in DI water over a range
of LIS from 0.5 to 10 ml, eluantlg-dry material. Extracts are
tumbled in an end -over -end fashion for a specified contact
time based on the particle size of the solid. Measurements
of eluate pH and conductivity as well as preparation and
analysis of leaching samples are handled in a manner similar
to that of Method 1313.
Results and Discussion
Leaching test results are summarized for 34 fly ashes and'29
�FGD,gypsum-samples (`fable 1). Reported values are mini-
mum•and'mazim cmu oncentrations across a pH range of 5.4
to 12.4 and LIS between 0.5 and 10 mLlg-dry (I2). Test results
also include the concentrations under "natural" conditions
defined as the end -point pH at equilibrium when a material
is extracted with DI water at a LIS of 10 mLlg. The pH range
over which the leaching results are reported is intended to
reflect plausible field conditions for CCR disposal based on
using a probability distribution of pH measurement data of
580 observations from 42 CCR landfill sites reflecting the
fifth (pH of 5.4) and 95th (pH of 12.4) percentiles (12).
7352 • ENVIRONMENTAL SCIENCE & TECHNOLOGY 1 VOL. 44, NO. 19, 2010

TABLE 1. Range of Observed Total Content and Leaching Test Results (5.4 < pH <_ 12.4) for 34 Fly Ash Samples and 20 FGD
Gypsum Samples with Initial Screening Concentrations
indicator values fly ash FGD gypsum
TC
MCL
total content
leaching
total content
leaching
concentration
concentration
(P910
1pg1L)
(mg/kg)
(pg/Q
(mg/kg)
(Irg/L)
mercury
200
2
0.1-1.5
<0.01-0.50
0.01-3.1
<0.01-0.66
antimony
-
6
3-14
<0.3-11,000
0.14-8.2
<0.3-330
arsenic
5,000
10
17-510
0.32-18,000
0.95-10
0,32-1,200
barium
100,000
2,000
50-7,000
50-670,000
2.4-67
30-560
boron
-
7,000-
NA
210-270,000
NA
12-270,000
cadmium
1,000
5
0.3--1.8
<0.1-320
0.11-0.61
<0.2-370
chromium
5,000
100
66-210
<0.3-7,300
1.2-20
<0.3-240
molybdenum
2000
6.9-77
<0,5-130,000
1.1-12
0.36-1,900
selenium
1,000
50
1.1-210
5.7-29,000
2.3-46
3.6-16,000
thallium
-
2
0.72-13
<0.3-790
0.24-2.3
<0.3-1,100
a Indicates DWEL
value rather than MCL. Bold
text indicates where leaching concentrations are greater than indicator
values, Indicator values
shown for comparison
to leaching test concentration as an initial screening only
(leaching results
do not include dilutionlattenuation
considered in development of indicator
values).
10 5% 99% 0.01 5% ii 95%
AaFA(P,1,1)
MCL - - - - - - - - L -Aa FC(13,1,1)
�-AFA(P,1,2)
--e--GAB(P,1,2)
.-. `� -� � • - LAB P 1,2
-A 0.ilooi
Imo.
MclrowL�+ '
0.01--; 3 d a I y
�c, � a
a _M4.._.._.._.. 0.00001
tAaFA(P,1,1)--AaFC(P, M L
MDL I �-AFA(P,1,2) --0--GAB(P,1,2) �� I
-LABP12 ..-.. .�� i o-- _O .0
0.0001 0.000001
2 4 6 8 10 12 14 2 4 6 8 10 12 14
PH pH
1
0.1
J
E 0.01
T
p 0.001
,p
0.0001
0.00001
At
I
--h-AaFA(P, l,l) _.. _.._I _ _
_ ML
_
--a-AFA(P, 1,2)
--0-- GAB(P, 1,2)
--LABP12
10
1
J
E 0.1
Er
•a 0.01
c
a1
m
in
0.001
T%
MCL
ML
---+-- AaFA(P,1,1) -0-AaFC(P,1,1)--
�►--AFA(P,1,2)--o--GAB(P,1,2)
MCL }
2 4 6 B 10 12 14 2 4 6 8 10 12 14
PH pH
FIGURE 1. Comparison of leaching as a function of pH for fly ash samples from different facilities {AaFA: cold side electrostatic
precipitator (ESP) with selective catalytic reduction (SCR), Eastern bituminous coal; AeFC: hot side ESP with SCR, Eastern
bituminous coal; AFA: fabric filter with selective noncatalytic reduction, Eastern bituminous coal; GAB: hot side ESP with carbon
injection (COHPAC), Eastern bituminous coal; LAB: hot side ESP, Southern Appalachian bituminous coal). Leaching result with
deionized water only ("natural pH") is indicated by circled data point.
beaching results (Table 1) that could represent a source material and do not consider attenuation and
potential concern are indicated in bold fontbased on initial dilution that may occur as a consequence of the manage -
screening by comparison to "indicator" values such as ment scenario. Initial screening of fly ash results indicates
toxicity characteristic values (TC; a threshold forhazardous that the leaching test eluate concentrations for some
waste regulatory determinations), drinking water maxi- samples were greater than the TC for four metals (As, Ba,
mum concentration levels (MCL), and the drinking water Cr, Se) and greater than the MCL or DWEL for nine metals
equivalent level (DWEL; which is used for noncarcinogenic (Sb, As, Ba, B, Cd, Cr, Mo, Se, Tl). The FGD gypsum results
toxicity end points) UZ 29). Such comparison is only for some samples were greater than the Tc for Se and
intended as an initial screening approach in that the greater than the MCL or DWEL for eight metals (Sb, As,
leaching test results represent potential release at the B, Cd, Cr, Mo, Se, Tl),
VOL. 44, NO. 19, 2010 I ENVIRONMENTAL SCIENCE & TECHNOLOGY ■ 7353

Gcu.
5% 95%
10 -
M
J
0.1
E
V
0.01 -
❑.001
0.n001
2
1
0.1
0.0001
F
0.00001
managetl
—�— Fly Ash
0
�'
o--o-------
ML--
MDL
€
E `
4 6 a 10 12 14
PH
_.�..L
--o-- ps managed
— _ —Fly Ash
p....
--,D Resid
� h1CL
I
-
--'-_-_.. �!k"�,
f-----
Mot
100
10
0.001
2
1
0.1
CI
o.al
v
0.001
4 6 8 10 12 14
PH
5% 95%
M L
ML
I '
--�—' As managed
MDL I --+—Fly Ash
— FGD Residue
0.000001 0.0001
2 4 6 a 10 12 19 2 4 6 0 10 12 14
PH pH
FIGURE 2. Comparison of leaching as a function of pH for fly ash, flue gas desulfurization (FGD) residue, and "as managed" material
iffy ash mixed with FGD residue and lime) for samples from a single facility (Facility K). Facility K configuration was a cold side ESP
with SCR and a magnesium lime, natural oxidation FGD scrubber burning sub -bituminous coal,
Facility Configuration. Distinctly different leaching as a
function of pH was observed for samples from the primary
particulate collection devices (i.e., fly ash) from different
facilities (Figure 1). These differences may be the result of
coal type combusted, facility configuration, and operating
conditions. However, similarities in pH -dependent leaching
behavior of individual elements also were observed for
samples from multiple facilities. These empirical results
indicate that, while common leaching behavior may be
observed for residues from multiple facilities, specific pH -
dependent behavior cannot be assumed a priori for any
particular facility, and there is a strong, element -specific pH
dependence of observed leaching that reflects the complex
chemistry of the residues. These results also indicate the
need for a coupled mass -transfer and chemical speciation-
based approach for evaluating long-term leaching behavior.
This type of laboratory testing can be used to calibrate and
validate chemical speciation-based modeling (30).
APC Residue Type and Blending. Different APC residues
(e.g., fly ash, FGD residues, blended materials) from a facility
behave with distinctive differences as a function of pH (Figure
2). The leaching behavior of codisposed or blended materials
(commonly a mixture of fly ash, FGD residue, and lime)
cannot be predicted directly from the leaching behavior of
the individual APC residues. The leaching behavior of the
mixed residues could be (i) less than but similar to the
individual residues (i.e., forAs), (ii) similar to but intermediate
concentrations between the individual residues (i.e., for B),
(iii) different from and greater than the individual residues
(i.e,, for Hg), or (iv) clearly dominated by one of the residues
blended in the mixture (i.e., for Se). Thus, leaching char-
acterization of "as managed" or blended sources is important
to distinguish the compatibility of individual types and
sources of CCRs with potential use and disposal scenarios.
Leaching Variability. Box plots can be used to evaluate
the variability of leaching from APC residues, both within
and between APC residue types. In the case of As (Figure 3),
the far left box plot represents the maximum leaching test
eluate concentrations across the pH range 5.4-12.4. The
middle box plot in the figure provides leach results for the
end -point pH at equilibrium when a material is extracted
with DI water at a liquid to solid ratio of 10 mLlg (i.e., natural
pH). Analogous summaries of leaching variability for B, Cr,
Hg, Se, and Tl are provided in Sl Figures S5—S9. Laboratory
leach data compare favorably to a limited range of field
leaching data observations collected through the Electric
Power Research Institute (EPRI) (31) and previous EPA efforts
(32, 33) and summarized to the right of the two sets of box
plots. The EPRI data are presented using two bar graphs
from field sampling of leachate from surface impoundments
and ash landfills (LFs). Leaching data (or source term data)
used in the EPA2007 riskassessment (33) on coal combustion
waste (CCW) are presented to the far right and broken down
into CCW Ash, CCW FGD, and CCW combined material. In
general, the range of results from laboratory testing is
consistent with the range of field observations; however, the
laboratory testing provides a methodology to identify the
characteristic leaching behavior of different CCRs within a
facility and for different coal-fired power plants. The results
presented in the tables and figures shown here indicate that
a leaching response variability of several orders of magnitude
exists for individual constituents across the broad range of
CCR types and facility configurations.
Total Content vs Leaching Behavior. Comparison of the
ranges of total values and leachate data (Table 1) indicate
that total content and leaching do not correlate (see Figure
4 for arsenic). Therefore, the use of total content is not a
good predictor of leaching behavior and environmental
7354 ■ ENVIRONMENTAL SCIENCE & TECHNOLOGY / VOL, 44, NO, 19, 2010

'
YY
J/
105
104
103
2
o,
10
Z
101
100
1a1
102
0 Laboratory data x SDA has only two date
- I —
—
— —
— S
p— —
— — — — —
— -
voe,x�b
----9
P
a
o
u
0
g
-54i7W
P
0
0
0
P
a
P
O
9
0•.
Fl
o
0
gp
0
03E
8
0
....0.T
Sth%ib...............0..,,����,..,.,..............
�....,.._......_
6.. ......_........,.,..,...,
�,
.,....,,.
.,.........
......
o
e
OM%W
0--
P
P
p
Maximum Values
As
axhxae
9th9111ej�
Reference Data Ranges
5pQ' �,F a GQe P4r 50p GQ$ \y� `� O .c
cl Qom ' �Qe �Q� ors' �0
6
FG 0� FV atA
To
FIGURE 3. Box plot representation of maximum arsenic concentrations from leaching as functions of pH and liquid solid ratio over
pH domain 5.4-12.4 (left), concentration at natural pH of the material at an US of 10 mg/L (center), and available field data from
EPRI (15, 20 (EPRI SI: surface impoundments; EPRI LF: landfills) as well as the EPA 2007 Risk Report (30). The dashed red line
represents the TC indicator value and the bottom green line shows the MCL indicator value {12).
10s
0 104
C
c 103
O
U
m
i�
w
102
X
IQ
10t
J
3
Q 0
10
10-1
101 100 101 102 103
As - Total By Digestion [pg/gj
FIGURE 4. Maximum eluate concentration (5.4 s pH —< 12,4) plotted against total arsenic content by digestion for a wide variety of
CCR types,
assessment should not be based solely on total contents of
APC residues. Furthermore, the variable response of the eluate
concentrations from leaching as a function of pH (Figure 1)
and L/S (see St Figure S-10) indicates that multiple LSP
phenomena, including dissolution, complex ion exchange,
and aqueous complexation, are responsible for the observed
behavior. These results indicate that the use of total content,
single -point leaching tests and linear partitioning (ap-
proaches frequently used in fate and transport modeling to
represent the source term) are unable to predict leaching
behavior over the wide range of potential use and disposal
scenarios with diverse chemical and hydraulic conditions.
Through the use of the LEAF test methods, leaching behavior
can be more accurately predicted resulting in the calculation
of a more reliable source term for use in modeling potential
impacts to human health and ecosystems.
Acknowledgments
The LEAF results presented in this paper are based on
collaborative research of Vanderbilt University, the Energy
Research Center of The Netherlands, U.S. EPA's Office of
Research and Development and Office of Resource Con-
servation and Recovery, with additional support provided
by ARCADIS-US. We thank Dr. H. van der Sloot and O.
Hjelmar who have been instrumental in the development
the LEAF approach, P. Kariher, R. Delapp, L.H. Turner,
and P. Seignette for analytical and data management
VOL, 44, NO. 19, 2010 / ENVIRONMENTAL SCIENCE & TECHNOLOGY ■ 7355

support, and M. Baldwin for significant contributions to
the program.
Supporting Information Available
Details on APC technologies, residue types, beneficial use,
and expanded leaching test results. This information is
available free of charge via the Internet at http:llpubs.
acs.orgl.
Literature Cited
(1) American Coal AshAssociation.2008Coal Combustion Product
Production and Use Statistics. Available at http:/lacaa.affinis-
cape.com/associations/8003/files/2008 ACAA CCP Survey_
Repo rt_FINAL_100509.pdf (accessed January 2010).
(2) U.S. Department of Energy. Annual Energy Outlook 2009 with
Projections to 2030,, DOE Energy Information Administration:
Washington, DC, 2009.
(3) Senior, C.; Thorneloe, S.; Khan, B•; Goss, D. Fate of Mercury
Collected from Air Pollution Control Devices. Environ. Manage,
2009, 15-21.
(4) U.S. Environmental Protection Agency, Clean Air Mercury Rule.
Available athttp://www.epa.gov/mercurvrulc/ (accessed March
2010),
(5) U.S. Environmental Protection Agency. Clean Air Interstate Rule.
Available at http://www.epa.gov/CAIR/ (accessed March 2010).
(6) Institute of Clean Air Companies. Bid Specification and
Information Requirements and Bid Evaluation Form for Acti-
vated Carbon Injection Systems. Available at http:llwww.icac.
comli4alpages/Index.cfm?pageid=3289#IIG-1 (accessed July
2010),
(7) U.S. Environmental Protection Agency. EPA's Roadmap for
Mercury, EPA4HQ-OPPT-2005-0013; Office of Research and
Development: Washington, DC, 2006,
(8) Kilgroe, J.; Sedman, C.; Srivastava, R.; Ryan, I.; Lee, C. W.;
Thorneloe, S, Control of Mercury Emissions from Coal -Fired
Electric Utility Boilers: Interim Report, EPA-6001R-01-109; Office
of Research and Development, National Risk Management and
Research Laboratory: Research Triangle Park, NC, December
2001.
(9) U.S. Environmental Protection Agency. Air Toxics Standards
For Utilities. Available at hitp:llwww.epa.gov/ttn/atw/utility/
utilitypg.htinl (accessed April 2010).
(10) U.S. Government Accountability Office. Mercury Control Tech-
nologies at Coal -Fired Power Plants Have Achieved Substantial
Emissions Reductions; U.S. Government Accountability Office:
Washington, DC, 2009,
(11) Electric Power Research institute. Impact of Air !:missions
Controls on Coal Combustion Products, EPRI 1015544; EPRI:
Palo Alto, CA, 2008.
(12) Kosson, D. S.; Sanchez, 1%; Kariher, P.; Turner, L. H.; Delapp, R.;
Seignette, P. Characterization of Coal Combustion Residuesfrom
Electric Utilities - leaching and Characterization Data; EPA-
6001R-091151; EPA Office of Research and Development,
National Risk Management and Research Laboratory: Research
Triangle Park, NC, December 2009.
(13) Sanchez, F.; Garrabrants,A.C.; Vandecasteele, C.; Moszkowicz,
P.; Kosson, D. S. Environmental assessment of waste matrices
contaminated with arsenic. I. Hazard, Mater, 2003, 96 (2-3),
229-257.
(14) Sanchez, F.; Keeney, R.; Kosson, D. S.; Delapp, R. Characteriza-
tion ofMercury-Enriched Coal Combustion Residues from Electric
Utilities Using Enhanced Sorbents for Mercury Control; EPA-
6001R-061008; EPA Office of Research and Development,
National Risk Management and Research Laboratory: Research
Triangle Park, NC, February 2006.
(151 Electric Power Research Institute. Field Evaluation of the Co -
management of Utility Low -Volume Wastes with High -Volume
Coal Combustion By -Products, EPRI: Palo Alto, CA, October 1997.
(16) U.S. Environmental Protection Agency. Coal Combustion
Products Partnership. Available at bttp:l/www.epa.gov/osw/
partnershipslc2p2l (accessed January 2010).
(17) American Coal Ash Association. Toothpaste to railroad ties, coal
combustion products use over the past four decades. ASH at
Work 2008, 1, 14-16.
(18) U.S. Environmental Protection Agency. Fossil Fuel Combustion
Waste. Available at http:llwww.epa.gov/osw/nonhaz/industrialI
speciallfossil! (accessed July 2010).
(19) Association of State and Territorial Solid Waste Management
Officials, 2006 Beneficial Use Survey Report, ASTSWMO: Wash-
ington, DC, 2007.
(20) U.S. Environmental Protection Agency. Report to Congress -
Wastes from 1he Combustion of Coal by Electric Utility Power
Plants, EPA1530-SW-88.002; EPA Office of Solid Waste and
Emergency Response: Washington, DC, 1988,
(21) U.S. Environmental Protection Agency. Report to Congress -
Wastes from the Combustion of Fossil Fuels: Vol. 2 - Methods,
Findings and Recommendations, EPA 530-R-99-010; EPA Office
of Solid Waste and Emergency Response: Washington, DC,1999.
(22) U.S. EPA Science Advisory Board. Consultation Summary. In
EPA Science Advisory Board, Environmental Engineering Com-
mittee Consultation with U.S. Ert vironrrrental Protectior: Agency,
EPA SAB, Environmental Engineering Committee: Washington
DC, 2003. This is Attachment A of Reference 14.
(23) Thorneloe, S.; Kosson, D. S.; Helms, G.; Garrabrants, A. C.
Improved Leaching Test Methods for Environmental Assessment
of Coal Ash and Recycled Materials Used in Construction. In
Proceedingsoftl to international Waste Managem en tand landfill
Symposium, S. Margherita di Pula, Cagliari, Italy, 2009.
(24) U.S. National Academy of Science. Managing Coal Combustion
Residues in Mines; NAS: Washington, DC, 2006.
(25) Kosson, D. S.; van der Sloot, H. A.; Sanchez, F.; Garrabrants,
A. C. An integrated framework fur evaluating leaching in waste
management and utilization of secondary materials. Environ.
Eng. Sci. 2002, 19 (3), 159-204.
(26) Leaching Environmental Assessment Framework (LEAF). Avail-
able at http:llwww.vanderbitt.edufleaching/LFAF,html (ac-
cessed July 2010).
(27) Sanchez, F.; Kosson, D. S.; Keeney, R.; Delapp, R.; Turner, L.;
Kariher, P.; Thorneloe, S. Characterization of Coal Combustion
Residues from Electric Utilities Using Wet Scrubbers for Multi -
Pollutant Control; EPA-6001R-081077; EPA Office of Research
and Development, National Risk Management and Research
Laboratory: Research Triangle Park, NC, July 2008.
(28) U.S. Environmental Protection Agency. Method 3052 - Micro-
wave Assisted Acid Digestion of Siliceous and Organically Based
Matrices. In Test Methods for Evaluating Solid Waste, Physical)
Chemical Methods (SW-846). Available at http://www,epa.gov/
oswlhazard/testenethodslsw8461onlinelindcx.htm.
(29) U.S. Environmental Protection Agency, 2006 Edition of the
Drinking Water Standards and Health Advisories, EPA 822-R-
06-013; EPA Offico of Water: Washington, DC, updated August
2006.
(30) van der Sloot, H.A.; Meeussen,l. C. L; van 7.omeren, A.; Kosson,
D. S. Developments in the characterization of waste materials
for environmental impact assessment purposes. J. Ceochem.
Explor. 2006, 88, 72-76.
(31) Electric Power Research Institute. Characterization of Field
leachates at Coal Combustion Product Management Sites:
Arsenic, Selenium, Chromium, and MercurySpeciation; EPRI
1012578; EPRI and U.S. DOEINETL Palo Alto, CA, 2006.
(32) U.S. Environmental Protection Agency. Characterization and
Fxaluation ofLandf ll Leachate, Draft Report, 68-W6-0068; EPA
Office of Solid Waste and Emergency Response: Washington,
DC, September 2000.
(33) U.S. Environmental Protection Agency. Human and Ecological
Risk Assessment of Coal Combustion Wastes, EPA-HQ-RCRA-
2006-0796-0009; EPA Office of Solid Waste and Emergency
Response: Washington, DC, 2007.
ES1016558
7356 ■ ENVIRONMENTAL SCIENCE & TECHNOLOGY r VOL. 44, NO, 19, 200

N� �1c,,S _ s(nc�-.. ��vc s� i� v��
54-aAAj�_CtV-4 1)65-0
0 N� iA5 A - 12 �)�
RATIONALE FOR PROPOSED REVISION TO
AQUATIC LIFE WATER QUALITY CRITERIA
FOR MOLYBDENUM
(NAC 445A.14 "
Z��
ada Divisj,
Bureau of Water Quality Planning
July 2008

Table of Contents
Introduction ..........................................
Criteria Development Summary...........
Overview Tetra Tech, Inc. Report .......
Literature Cited ....................................
...........................................................................3
..........................................................................4
'.:.. 8
v
...... ... .............................9
List of Figures
`f
Figure 1. Molybdenum Acute Toxicity Values.......:::
Figure 2, Molybdenum Chronic Toxicity Values.........
Appendix A
Draft Rationale Document for Proposed Revision to Aquatic
Life Water Quality Criteria for Molybdenum
-2-
.......................................... 7
.....................................7
NL: 'i:�:
olybdenum
July 2008

RATIONALE FOR PROPOSED REVISION TO AQUATIC LIFE WATER
QUALITY CRITERIA FOR MOLYBDENUM
(NAC 445A.144) . W
Introduction
The current State of Nevada molybdenum (Mo) water quality standard for protection of aquatic
life is 19 µg/L (0.019 mg/L). This standard was adopted base'on recommendations made by the
N
California State Water Resources Control Board (CSWRCB) in the report, Regulation of
Agricultural Drainage to the San Joaquin River, (1.988) The relevance -and applicability of the
molybdenum standard to Nevada surface waters has been,frequently questione& The U.S.
Environmental -Protection Agency {EPA),ha ns o dev_.e1op d o� published.national_water-quality
fc—riteria for molybdenum for protection of aquatic life. X"iK-is mosflikely due to-thC relati�ely�
low•toxicity- and-rare-occurrence_of mo.ly, de.num in most.areas.of the-U.S..
The Nevada Division of Environmental Protection — Bureau of Water Quality Planning (NDEP-
BWQP) contracted with Tetra` -Tech, Inc. to assess the existing statewide molybdenum aquatic
life standard and to determine whether more recent and relevant toxicological data had been
published. Basedyon the compiled data; an -evaluation was made to determine if adequate data
existed toub' antide`the existing, i molybdenum aquatic life standard or to support derivation of
revised criteria consistent with EPA methods.
�-I1?
The molybden fffi�criterionxFecommended by the CSWRCB was calculated based on toxicity
data published in 8 a d 1980 on the long term effects of molybdenum on rainbow trout,
narrow -mouthed toad, and Daphnia magna (an aquatic macro invertebrate), and an ambient
national background level of molybdenum in surface waters. A 19 µg/L molybdenum criterion
value was derived by taking the log mean of the three adverse effects levels for the above
mentioned species and the average level of molybdenum in surface waters of the U.S. The
average national surface water concentration of 0.68 µg/L reported in Study and Interl)retation
of the Chemical Characteristics of Natural Waters (Hem, 1985) was used. Including the
national background level strongly biased the calculation. The use of a surface water
Draft Rationale Document for Proposed Revision to Aquatic
Life Water Quality Criteria for Molybdenum
-3-
July 2008

background concentration is not consistent with EPA accepted criteria development methods,
nor is it toxicologically -based. The CSWRCB noted in the 1988 report that the calculated
molybdenum criterion should be considered preliminary subject to revision as new toxicity data
became available.
Assessment of the 19 µg/L molybdenum aquatic Iife threshold indicated that the criterion was
developed using limited toxicity data and non-standard criteria development methods.
The aquatic life toxicological data that was assembled for molybdenum by Tetra Tech, Inc. did
not support the CSWRCB recommended criteria. Developffi' oof revised molybdenum aquatic
life water quality criteria based on sound toxicological data and supporting information that
�, A
would be scientifically defensible and applicable t&&vada surface waters was determined to be
appropriate.
The standard protocol for use in deriving
for Deriving
Organisms and their
for metals have been di
s
requirements (118'Fami
critefla'�based upon tho
guidance dusses the
criteria develoffient.
Water
et al. 198
n
`life watequality criteria is EPA's Guidelines
Criteriafor the Protection ofAquatic
,,.Most of the current EPA aquatic life criteria
th this guidance. The minimum data
Rules};,for developing criteria as well as the procedures for calculating
;data are e `outlined in the guidance document. Additionally, the
tests appropriate for generating data to be used in
To derive criterion for protection of aquatic life and their uses, the EPA guidance document
requires that toxicity tests results for at least one representative species from the following eight
families be available:
• Member of the family Salmonidae
• Member of another family in class Osteichthyes
• A third family in phylum Chrordata
• A planktonic crustacean
Draft Rationale Document for Proposed Revision to Aquatic
Life Water Quality Criteria for Molybdenum
-4-
July 2008

C
TABLE 2
Summary of Proposed Constituents, Analytical Methods, and Solid Waste Section Limits
Progress Energy .`
Maya CCP ' Monofi11
Constituent List
Solid Waste
Section
Identification
Number
Analytical Method
Solid Waste
Section Limit
Solid Waste
Groundwater
Protection
Standard
NC 21,
Standard
Units
Arsenic
14
EPA 200.7
10
NE
10
u9A,
Barium
15
EPA 200.7
100
NE
700
ug/L
Biochemical Oxygen Demand
316
SM 5210B
NE
NE
NE
mg/L
Boron
428
EPA 200.7
NF
NE
700
ug/L
Cadmium
34
EPA 200.8
1
NE
2
ug/L
Chemical Oxygen Demand
317
SM 5220D
NE
NE
NE
mg/L
}
Chlaridel
301
EPA 300 or SM4500-Cl/E
NE
NE
250
mgtL
Chromium
51
EPA 200.7
10
NE
10
ug/L
Copper
54
EPA 200.7
10
1000
1000
ug/L
Fluoride
312
SM4500 F/C
2
NE
2
mg/L
Iron
340
EPA 2003
300
NE
300
ug/L
Lead
131
EPA 200.7
10
NE
15
ug/L
Manganese
342
EPA 200.7
50
NE
50
ug/I.
Mercury
132
EPA 245.1
0.2
NE
I
ug/L
Nickel
152
EPA 200.7
50
NE
100
ug)L
Nitrate
303
353,2 or EPA 300.0
NE
NE
10
mgA,
Selenium
183
EPA 200.7
10
NE
20
ug/L
Silver
194
EPA 200.7
10
NE
20
ug/L
Sulfate
315
300
NE
NE
250
mg/l,
T6Ilium
194
EPA 200.8
5.5
0.2
0.2
ug/L
Total Dissolved Solids
311
SM 2540C
NE
NE
500
mglL
Total Organic Carbon
357
SM 5310B
NE
NE
NE
mg/L
Zinc
213
1 EPA 2003
10
1 NE
1 1000
1 u
Notes:
1. NE = not established
2. ug/L = micrograms per liter
3. mg/L — milligrams per liter
4. Solid Waste Section Limit as defined in http://www.wastenotnc.org/swlswenvmonitoringlist,asp,
GC" ' p WYZ p e.• �"�-C Ste— r%P S w�-�51
co G f A
Water Quality Monitoring Plan
Progress Energy
NJayoCCP MonoftlI
Page I of I
Golder Associates NC, Inc
Project No, 0636562024

Progress Energy Water Quality Monitoring Plan Project No.: 063-6562024
Mayo CCP Monofill -13- November 2011
will be qualified "B" when the sample concentration is less than five times the blank
concentration. For common laboratory contaminants, the results will be qualified "B" when the
reported sample concentration is less than 10 times the blank concentration. The "B" qualifier
designates that the reported detection is considered to represent cross -contamination and that the
reported constituent is not considered to be present in the sample at the reported concentration.
5.0 SURFACE WATER MONITORING (RULE .0602)
In accordance with Rule .0602 of the NCSWMR, surface water monitoring locations have been
established to monitor surface water quality at the proposed CCP monofill. Two upstream
monitoring points (SW-1 and SW-2) and one downstream monitoring point (SW-3) are proposed
for this facility, as shown on Drawing WQMP-1. The surface water features at SW-1 and SW-2
are un-named perennial streams that approximately follow the eastern monofill boundary and
SW-3 represents the downstream confluence of these other streams. The streams eventually flow
from the southern boundary to the northern boundary, discharging into Bowe's Branch, a
tributary of Hyco River. Samples will only be collected at each location if flowing water is
observed during the sampling event.
The surface water monitoring points will be sampled semi-annually for analysis of the list of
constituents on Table 2 and pH, specific conductivity, and temperature. The results of the
analysis of the surface water data will be .submitted to the SWS at least semi-annually in
conjunction with the groundwater data. Data will be compared to applicable NC surface water
standards, and those comparisons will be included with each submittal
6.0 REFERENCES
The references cited below were used in the preparation of this report, and may or may not be
referenced in the text.
Butler, R.J., and Secor, Jr., D.T., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,
V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, pp. 59-78,
NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina. Scale
1:500,000.
North Carolina Dept. of Environment, Health, and Natural Resources. 1995. N.C. Water
Quality Monitoring Guidance Document for Solid Waste Facilities.
North Carolina Dept. of Environment and Natural Resources. 2006. N.C. New Guidelines for
Electronic Submittal of Environmental Monitoring Data.
North Carolina Dept. of Environment and Natural Resources. 2007. N.C. Addendum to
October 27, 2006, North Carolina Solid Waste Section Memorandum Regarding New
Guidelines far Electronic Submittal of Environmental Monitoring Data.
North Carolina Dept. of Environment and Natural Resources. 2008. N.C. Solid Waste Section
Guidelines for Groundwater, Soil, and Surface Water Sampling.
Golder Associates NC, Inc.

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Georgoulias, Bethany
From: Werner, Elizabeth
Sent: Friday, November 08, 2013 10:59 AM
To: Georgoulias, Bethany
Cc: Frost, Larry
Subject: RE: Water Quality Monitoring Plan for Mayo Plant
They are required to perform semi-annual monitoring as long as the landfill is in operation. Then after closure, they are
required post -closure monitoring for 30 years.
r lizaheth 5. Werner
I"ermitting JJDJroSeolo;;61:
Nortk Carolina ]DeFartment of E nvir-onrrrcnt anti Natriral RIesources
Division of Waste Management-jolici W�aSte 5ecticrn
�lu:nc; frax - 9 1 %.7o7.82n3
Fkljsical Chess: 217 wc5t ioncs jt/ Kalcigk, NC/ 276o3
Mailin AddresS: 1 b`i'O Mall `,ervicc Center/ NC/ �-7(�) j- 1
hti�F://�orE:nl.nccienr.i�rk= we�iLwm/sw
1--m++ail correspolnaence to an8 from this a,:lciresss near} ire 5u6 ect to tkc North Carolina F',-61ic f�ecor-Js Law and tkereforc mael
ke � inclo, c,aJ to third Fart-ic.s.
From: Georgoulias, Bethany
Sent: Friday, November 08, 2013 10:56 AM
To: Werner, Elizabeth
Cc: Frost, Larry
Subject: RE: Water Quality Monitoring Plan for Mayo Plant
Thanks, Elizabeth. This is all extremely helpful! They will be doing a lot of semi-annual monitoring up and downstream -
- which is what I wanted details on, since our permit deals with surface waters as well. How many years do they
continue that monitoring? For the duration of their solid waste permit?
Thanks again,
Bethany
Bethany Georgoulias, Environmental Engineer
NCDENR / DEMLR / Stormwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
9191807-6372 (phone); 919 / 807-6494 (fax)
Website: http://portal.ncdenr.org/web/lr/storinwater
Ii-uturl c:orrc:,.pnrdcncc ra andfrom this Address nun he suhfcc•i to fhe Nwilr C'umlinu Public Records lwv surd may= he rluck;sed to third pnriies.
From: Werner, Elizabeth
Sent: Friday, November 08, 2013 10:39 AM
To: Georgoulias, Bethany

Cc: Frost, Larry
Subject: RE: Water Quality Monitoring Plan for Mayo Plant
Kind of, but indirectly. There are approved documents listed in the permit that the permitee has to abide by and the
WQMP is one of these listed documents. In the Monitoring section of the permit, there is language stating the permitee
shall monitor the facility in accordance with the approved WQMP listed in the approved documents section.
Larry, please let Bethany know if this is incorrect or add anything I may have left out. Thank you!
Bethany, Larry is the permitting engineer for the Mayo Plant and is the author of their permit.
F liza6Et� 5. Werner
('crmittin�fJ9Jvc�=,eolo isL
North Carc)lina DcFariment- of ]—nvironment anti N3Lurr31 Re.sourccs
�]nision of l�! Este �1�an:a en}ent-�U�ia Waste Section
f'hysicalAaar-esi: Z 17 West,Jones 5t/ Kaki k NC/ 2760-5
11isilingr aaress: I (i46 MaiiSerfice [enter/ t:jleith, NC/276yy-1 0h�
httf,://�,ortaf.ncdenr.orp/we6/wm/sw
E-mail con-c,s,ponaencc to aria frorn this aaarr.sss m�t�q 6c 5u6Ject to the North Carolina Fu6lic Rccoras Lila v aria therefore Mn� )
6e to thir,:i parLics.
From: Georgoulias, Bethany
Sent: Friday, November 08, 2013 9:24 AM
To: Werner, Elizabeth
Subject: RE: Water Quality Monitoring Plan for Mayo Plant
Hi Elizabeth,
Is this Water Quality Monitoring Plan part of the Solid Waste permit itself?
Bethany Georgoulias, Environmental Engineer
NCDENR / DEMLR / Stormwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: httn:gportal.ncdenr,org/web/Ir/storniwatet-
E-mad cnrre.shondence to and ,front. this address may be subject to the North carohna Public 1?, rCorils hilt. and m,ry he disclosed to third prrrrits,
From: Werner, Elizabeth
Sent: Friday, November 08, 2013 8:26 AM
To: Georgoulias, Bethany
Cc: Frost, Larry; Scott, Michael
Subject: Water Quality Monitoring Plan for Mayo Plant
Hi Bethany. I'm the permitting hydrogeologist for the Mayo Plant. The approved water quality monitoring plan is
attached for your review. Please let me know if you need anything else. Have a great day.
r 1iza6c--th 5, Werner
�erntitlin>; Nya;-o�colU�ist

SOLID WASTE S1CTION'
Aelgust 13-,.20,12`:
Mr. John Toepfer, Senior Environmental Tech. Specialist
Progress Energy Carolinas, Inc.
410 S. Wilmington Street, PEB 4A
Raleigh, North Carolina 27601
Subject: Permit to Construct -Phase 1, Re -issuance
Progress Energy Carolinas, Inc., Mayo Electric Generating Plant, CCP Monofill
Permit No. 7305-INDUS-2012, Person County, DIN .17035
Dear Mr. Toepfer:
Enclosed you will find a copy of Permit No. 7305-INDUS-2012, dated August 10, 2012, DIN 16910, The Permit
to Construct is the re -issuance far the Mayo Electric Generating Plant, CCP Monofill, Phase 1, located in Person County.
The following are important items that remain to be accomplished;
1. This permit re -issuance includes the required deed/plat information that was not included the original issuance.
2. Note that Condition No. 20 has changed.
3. Enclosed is a certified original of your permit. It is important that the certified original permit be recorded by the
Register of Deeds in Person County. It should be indexed in the grantors index under the name of the landowner.
The certified original should be affixed with the Register's seal, date, book number and page number of
recording. A certified original of the permit with the Register's information affixed should then be returned to me
at the address at the bottom of this page. The purpose of this recordation to notify future buyers that a solid waste
management facility existed on the property, in accordance with North Carolina General Statutes.
4. Read your permit carefully, it is important that you understand your permit. If you have any questions regarding
the process or the permit contact me immediately.
5. The approved documents related to this permit attached and can also be found at
httn:Hpoi-tal.nedeiir.oi-g/web/wm/sw Documents.
Should you have any questions regarding this matter you may contact me at [phone] or at
I any.frost ncdenr. gov,
Sincerely,
L F ost
vironmental Engineer
cc: Charles Hiner — Golder Associates
ec: Elizabeth Werner—SWSICO
2090 US Highway 70, Swannanoa, North Carolina 28778
Phone: [phone] Internet: htip:ltportal.ncdenr.org/web/wm/sw
An Equal Opportunity 1 Affirmative Action Employer
NorthCaroliha
atura!!r�

ern
NCDENR
Facility Permit No: 7305-INDUS-2012
Permit to Construct - Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofitl
August 10, 2012
DIN:16910
Page 1 of 7
North Carolina Department of Environment and Natural Resources
Division of Waste Management
Beverly Eaves Perdue Dexter R. Matthews Dee Freeman
Governor Director Secretary
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WASTE MANAGEMENT
SOLID WASTE SECTION
INDUSTRIAL SOLID WASTE LANDFILL FACILITY
Permit No. 7305-INDUS-2012
PROGRESS ENERGY CAROLINAS, INC.
is hereby issued a
PERMIT TO CONSTRUCT
MAYO STEAM PLANT, CCP MONOFILL
PHASE I
Located within the Progress Energy Carolinas, Inc., Mayo Electric Generating Plant properly boundaries on
Boston Road north of the City of Roxboro, Person County, North Carolina, in accordance with Article 9,
Chapter 130A, of the General Statutes of North Carolina and all rules promulgated thereunder and subject to
the conditions set forth in this permit. The legal description of the site is identified on the plat recorded for
this property listed in Attachment No. 1 or this permit.
1 cn=Edward F. Mussler III, P.
E., o=Solid Waste 5ection,
'ou=NC DWM, email=ed,
[e-mail], c=US
2012,08.1010:20:21-04'00'
Edward F. Mussler, ill, P.E.,
Permitting Branch Supervisor
Solid Waste Section
1646 Mail Service Center, Raleigh, North Carolina 27699-1646
Phone [phone] Internet: httpJ/portal.ncdenr.org/web/wm/sw
An Equal Opportunity! Affirmative Action Employer - Printed on Dual Purpose Paper
One
NorthCarolina
Mundy

ATTACHMENT 1
PART I: PERMITTING HISTORY
Facility Permit No: 7305-INDUS-2012
Permit to Construct — Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN: 16910
Page 2 of 7
No.
Description
DIN
1.
Notification of the Site Suitability, March 2012.
16265
2.
Design HydrogSology Approval, Phase 1. March 2012.
16268
3.
Issuance of the original Permit to Construct, Phase 1. July 2012.
16910
Permit Type
Date Issued
Permit to Construct — New Permit
July 192 2012
PART II: LIST OF DOCUMENTS FOR THE APPROVED PLAN
Industrial Solid Waste Landfill Facility
No.
Document Description
DIN
1.
Site Application, Progress Energy, Mayo Plant, Proposed Mayo CCP Monofill,
15578
Person County, North Carolina. Prepared for Progress Energy. Prepared by Golder
Associates. November 2011.
2.
Design Hydrogeologic Report, Progress Energy, Mayo Coal Combustion Products
15579
Monofill, Person County, North Carolina. Prepared for Progress Energy. Prepared
by Golder Associates. November 2011.
3.
Application for Permit to Construct, Progress Energy, Mayo Plant, Proposed Coal
15581
Combustion Products Monofill, Person County, North Carolina. Prepared for
Progress EnergX. Prepared by Golder Associates. November 2011.
4.
Response to Comments, Permit to Construct Application, Progress Energy, Mayo
16624
Plant, CCP Monofill, Person County, North Carolina, DIN 16048. Prepared for
Progress Energy. Prepared b Golder Associates. May 2012.
5.
Response to Comments, Permit to Construct Application, Progress Energy, Mayo
16907
Plant, CCP Monofill, Person County, North Carolina, DIN 16048, Prepared for
Progress Ener . Prepared by Golder Associates. July 2012.

Facility Permit No: 7305-INDUS-2012
Permit to Construct — Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN:16910
Page 3 of 7
PART III: PROPERTIES APPROVED FOR THE SOLID WASTE FACILITY
Person County,N.C. Register of Deeds
Plat Cabinet
Hanger
Grantee
TAcres
16
267
Mao Steam Plant, Progress Energy Carolinas, Inc.*
1651.150
Total Site Acreage: 651.150
Note * - Plat of Boundary Survey, Landfill area Parcel I, DIN 17024.
PART IV: GENERAL PERMIT CONDITIONS
1. This permit is issued by the North Carolina Department of Environment and Natural
Resources, Division of Waste Management, Solid Waste Section (Section). In
accordance with North Carolina Solid Waste Management Rule 15A NCAC 13B
.0201(d), a solid waste management facility permit shall have two parts: a Permit to
Construct and a Permit to Operate. The Permit to Construct must be implemented in
accordance with Attachment 2 of this pen -nit. The Pert -nit to Operate must be
implemented in accordance with Attachment 3 of this permit.
2. The persons to whom this permit is issued ("permittee") are the owners and operators of
the solid waste management facility.
3. The permit shall not be effective until the certified copy of this permit which shows
current ownership and references legal descriptions for all land within the solid waste
management facility boundary is recorded in the Register of Deeds office and indexed in
the grantor index under the name of the owner of the land in the county or counties in
which the land is located. The certified copy of the permit affixed with the Register's seal
and the date, book, and page number of recording must be returned to the Section within
30 calendar days of issuance of this permit. If the Section does not receive the certified
copy of the recorded permit within 30 calendar days of issuance of the permit, then and in
that event, the permit is suspended and of no effect until the date the Section receives the
certified copy of the recorded permit.
4. When this property is sold, leased, conveyed, or transferred in any manner, the deed or
other instrument of transfer shall contain in the description section in no smaller type than
that used in the body of the deed or instrument, a statement that the property has been
used as a solid waste management facility and a reference by book and page to the
recordation of the permit.
By receiving waste at this facility the permittee shall be considered to have accepted the
terms and conditions of this permit.

Facility Permit No: 7305-INDUS-2012
Permit to Construct -- Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN: 16910
Page 4 of 7
6. Operation of this solid waste management facility must be in accordance with the Solid
Waste Management Rules, 15A NCAC .1313, Article 9 of the Chapter 130A of the North
Carolina General Statutes (NCGS 130A-290, et seq.), the conditions contained in this
permit; and the approved plan. Should the approved plan and the rules conflict, the Solid
Waste Management Rules shall take precedence unless specifically addressed by permit
condition.
7. This permit is issued based on the documents submitted in support of the application for
permitting the facility including those identified in Attachment 1, "List of Documents for
Approved Plan," and which constitute the approved plan for the facility. Where
discrepancies exist, the most recent submittals and the Conditions of Permit shall govern.
8. This permit may be transferred only with the approval of the Section, through the
issuance of a new or substantially amended permit in accordance with applicable statutes
and rules. In accordance with NCGS 130A-295.2(g) the permittee must notify the Section
thirty (30) days prior to any significant change in the identity or business structure of
either the owner or the operator, including but not -limited to a proposed transfer of
ownership of the facility or a change in the parent company of the owner or operator of
the facility.
9. The permittee is responsible for obtaining all permits and approvals necessary for the
development of this project including approval from appropriate agencies for a General or
Individual NPDES Stormwater Discharge Permit. Issuance of this permit does not
remove the permittee's responsibilities for compliance with any other local, state or
federal rule, regulation or statute. Failure to comply may result in compliance action or
permit revocation
- End of Section -
ATTACHMENT 2
CONDITIONS OF PERMIT TO CONSTRUCT
PART 1: GENERAL FACILITY CONDITIONS
This permit approves construction for Mayo Electric Generating Plant — CCP Monofill,
Phase 1 and was issued on July 19, 2012. This permit shall expire July 19, 2017,
pursuant to the NC Solid Waste Management Rules (Rule) 15A NCAC 13B .0201(c) and
(d)(1)•
2. The initial, substantial, construction authorized by this Permit to Construct must
commence within 18 months from the issuance date of this permit. If substantial
construction does not begin within 18 months from the issuance date of this permit, then
the permit to construct shall expire. Substantial construction includes, but is not limited

Facility Permit No: 7305-INDUS-2012
Permit to Construct — Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN: 16910
Page 5 of 7
to, issuance of construction contracts, mobilization of equipment on site, and construction
activities including installation of sedimentation and erosion control structures. The
permittee may reapply for the permit to construct prior to the expiration date. The re-
application will be subject to the statutes and rules in effect on that date and may be
subject to additional fees.
3. Construction of all solid waste management units within this facility must be in
accordance with the pertinent approved plans and only for those phases of development
approved for construction as described in Attachment I, Part 11 List of Documents for the
Approved Plan.
4. The permitter must conduct a preconstruction meeting at the facility prior to initiating
construction of any unit/cell and must notify the Section at least 10 days prior to the
meeting.
5. Modifications or revisions of the approved documents or changes during construction of
any landfill unit/cell require approval by the Section, and may constitute a permit
modification and be subject to a permitting fee.
6. The following conditions must be met prior to operation of the Phase 1:
a. The Permittee must obtain a Permit to Operate for Phase I from the Section in
accordance with 15A NCAC 13B .0201(d).
b. Construction Quality Assurance (CQA) documentation as well as a certification
by the project engineer that the landfill was built in accordance with approved
plans and the conditions of the permit must be submitted to the Section for review
and approval.
C. The Permittee must contact the appropriate regional environmental specialist and
permitting engineer to determine whether the Section chooses to hold a pre-
operative meeting with key landfill personnel and representatives of the Section.
d. The edge of the waste footprint must be identified with permanent physical
markers.
e. Financial assurance as required by state rules and statutes must be established in
accordance with applicable rules and statutes.
Geologic, Ground Water and Monitoring Requirements
7. Prior to issuing the Permit to Operate, samples from new ground water monitoring wells
and surface water stations shall be sampled for the Appendix 1 constituent list.
8. Prior to construction of the phase or cell(s) within the phase, all piezometers, borings, and
groundwater monitoring wells within the footprint must be properly abandoned in
accordance with 15A NCAC 2C .01 13 (b)(1), entitled "Abandonment of Wells."

Facility Permit No: 7305-INDUS-2012
Permit to Construct — Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN: 16910
Page 6 of 7
9. In areas where soil is to be undercut, abandoned piezometers, monitoring wells and
borings must not be grouted to pre -grade land surface, but to the proposed base grade
surface to prevent having to cut excess grout and possibly damage the wells.
10. A Licensed Geologist must report any pertinent geological feature(s) exposed during
phase or cell excavation. Prior to placing any landfill liner, the geologist must submit to
the Section hydrogeologist a written report that includes an accurate description of the
exposed geological feature(s) and effect of the geological feature(s) on the design,
construction, and operation of the cell, phase, or unit.
11. A Licensed Geologist must supervise installation of groundwater monitoring wells and
surface water sampling stations.
12. Any modification to the approved water quality monitoring, sampling, and analysis plan
must be submitted to the Section Hydrogeologist for review.
13. Within 30 days of completed construction of each new groundwater monitoring well, a
well construction record (GW-I form), typical well schematic, boring log, field log and
notes, and description of well development activities must be submitted to the Section.
14. The permittee must provide a plan sheet -sized, scaled topographical map, showing the
location and identification of new, existing, and abandoned wells and piezometers after
installation of groundwater monitoring wells.
15. Within thirty (30) days of the completed permanent abandonment of a ground -water
monitoring well, the well abandonment record (GW-30 form) and any additional
information included in the abandonment record) must be submitted to the Section. The
well abandonment records must be submitted to the Solid Waste Section in accordance
with 15A NCAC 2C .01 14(b) and be certified by a Licensed Geologist.
Erosion and Sedimentation Control Requirements
16. All required sedimentation and erosion control -measures must be installed and operable
to mitigate excessive on -site erosion and to prevent silt from leaving the area of the
landfill unit during the service life of the facility.
17, All earth disturbing activities must be conducted in accordance with the Sedimentation
Pollution Control Act of 1973 (15 NCAC 4) and consistent with any other local, state or
federal requirements.
18. Facility construction, operations or practices must not cause or result in a discharge of
pollution, dredged material, and/or fill material into waters of the state in violation of the
requirements under Sections 401 and 404 of the Clean Water Act, as amended.

Facility Permit No: 7305-INDUS-2012
Permit to Construct — Reissuance
Progress Energy, Mayo Steam Plant
CCP Monofill
August 10, 2012
DIN:16910
Page 7 of 7
19. Modifications to the approved sedimentation and erosion control activities require
approval by the North Carolina Land Quality Section. The Section must be notified of any
sedimentation and erosion control plan modifications.
20. Pursuant to the NC Solid Waste Management Rules burning of land -clearing debris
generated on site as a result of construction activities requires approval by the Section
prior to initiating the burn. In addition, the Division of Air Quality and local fire
department must approve the activity prior to burning.
PART II: INDUSTRIAL SOLID WASTE LANDFILL UNIT SPECIFIC CONDITIONS
21. Pursuant to the NC Solid Waste Management Rules (Rule) 15A NCAC 13B .0201(c) and
(d)(1), this permit approves construction for the Mayo Electric Generating Plant — CCP
Monofill, Phase I. Phase 1 includes an area of 31.0 acres, with 1,592,000 cubic yards of
air space.
- End of Section -
ATTACHMENT 3
CONDITIONS OF OPERATING PERMIT
PARTI: GENERAL FACILITY CONDITIONS
Not Applicable
-End of Conditions-

Permit No. NCG 120000
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG120000
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
for
Landfills
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission and
the Federal Water Pollution Control Act, as amended, this permit is hereby issued to all owners or
operators, hereinafter permittees, which are covered by this permit as evidenced by receipt of a Certificate
of Coverage by the Environmental Management Commission to allow the discharge of stormwater to the
surface waters of North Carolina of to a separate storm sewer system conveying discharges to surface '
waters in accordance with the terms and conditions set forth herein.
Coverage under this General Permit is applicable to:
♦ All owners or operators of stormwater point source discharges associated with activities categorized as
landfills, including construction and demolition debris landfills, which are permitted by the North
Carolina Division of Waste Management under the provisions and requirements of North Carolina
General Statute 130A-294.
♦ Stormwater point source discharges from like industrial activitiesde Division of Water
Quality to be similar to these operations in the process, or the discharges, or the exposure of raw
materials, intermediate products, by-products, products, or waste products.
Except upon DWQ determination of similarity as provided immediately above, the following
activities and associated discharges are excluded from coverage under this General Permit:
♦ Stormwater point source discharges from open dumps, hazardous waste disposal sites, land clearing
and inert debris landfills, or discharges of wastes (including discharges of leachate as defined in 15A
NCAC 13B .0101(11)).
The General Permit shall become effective on November 1, 2012.
The General Permit shall expire at midnight on October 31, 2017.
Signed this day October 25, 2012.
Oi iginal signed by Matt Matthews
for Charles Wakild, P.E., Director
Division of Water Quality
By the Authority of the Environmental Management Commission

Permit No. NCG120000
spilled fluids shall be cleaned up to the extent practicable and disposed of in a manner so as not to
allow their entry into the waters, surface or ground, of the state,
SECTION B: ANALYTICAL MONITORING REQUIREMENTS
Analytical monitoring of stormwater discharges shall be performed as specified in Table 1. All analytical
monitoring shall be performed during a measureable storm event at each stormwater discharge outfall
(SDO). Only SDO shaving stormwater discharges associated with industrial activity must be sampled, See
Definitions.
A measurable storm event is a storm event that results in an actual discharge from the permitted
site outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-
hour storm interval does not apply if the permittee is able to document that a shorter interval is
representative for local storm events during the sampling period, and the permittee obtains
approval from the local DWQ Regional Office. See Definitions.
Table 1 Analytical Monitoring Requirements
Discharge
Characteristics
Units
Measurement
Fre uenc 1
Sample
Type.2
Sample
Location3
Chemical Oxygen Demand
mg/1
semi-annual
Grab
SDO
Fecal Coliform
# per 100 nil
semi-annual
Grab
SDO
Total Suspended Solids
m 1
semi-annual
Grab
SDO
Total Rainfall4
inches
I semi-annual
Rain gauge
-
Footnotes:
1 Measurement Frequency: Twice per year during a measureable storm event:
2 Sample collection must begin within the first 30 minutes of discharge and continue to all outfalls until completed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless
representative outfall status (ROS) has been granted by DWQ. A copy of the DWQ letter granting ROS must be kept
on site. DW Q's ROS letter remains in effect through the subsequent reissuance of this permit and as long as the
pertinent site conditions and operations remain unchanged, unless the ROS letter provides for other conditions or
duration.
4 For each sampled measureable storm event the total precipitation must be recorded from an on -site rain gauge.
{Where isolated sites are unmanned for extended periods, a local rain gauge reading may be substituted for an on -site
gauge, upon prior DWQ written approval.)
The permittee shall complete the analytical samplings in accordance with the schedule specified in Table 2
below, unless adverse weather conditions prevent sample collection (see Definitions.) Inability to sample
because of adverse weather conditions must be recorded on the Discharge Monitoring Report, along with a
description of the adverse conditions and their duration. Sampling is not required outside of the facility's
normal operating hours.
A minimum of 60 days must separate Period 1 and Period 2 sample dates unless monthly monitoring
has been instituted via other requirements of this permit. The permittee must report the results of every
discharge sample taken within the monitoring period (see Part III, Section E).
Failure to monitor semi-annually per permit terms may result in the Division requiring monthly
monitoring for all parameters for a specified time period. "No discharge" from an outfall or inability to
collect a sample because of adverse weather conditions during a monitoring period, for example, does not
constitute failure to monitor, as long as it is properly reported.
Part 11 Page 2 of 6

A
FOR AGENCY USE ONLY
Division of Water Quality / Surface Water Protection Date Received
Amr.'IWA Section Year Month Da
L' N q
CetnifcateofCovet a e
NC®��� National Pollutant Discharge Elimination System
Check # 1 Amount
NpRiar C�rIl (}EZrMEM Or
aa "IdI lv
E" RORMEH mo Nulxt RE RCES NCG * 20000 Permit Assigned IO
y, j V v
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG 120000:
STORMWATER DISCHARGES associated with activities classified as.
Landfills that are permitted by the North Carolina Division of Waste Management under the
provisions and requirements of North Carolina General Statute 130A — 294.
The following activities are specifically excluded from coverage under this General Permit:
• Stormwater discharges from open dumps, hazardous waste disposal sites, or discharge of waste (including
leachate) to the wafers of the state.
V
l For questions, please contact the DWQ Regional Office for your area. See page 4.
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be mailed):
Name Mayo Steam Electric Plant Duke Energy Progress, Inc
Street Address 10660 Boston Road
City Roxboro State NC ZIP Code 27574
Telephone No. 919-546-2439 (corporate contact) Fax:. [phone]
2) Location of facility producing discharge:
Facility Name Mao Steam Plant Monofill
Facility Contact Dulcie Phillips
Street Address 10660 Boston Road
City Roxboro
County Person
Telephone No. 336-597-7331
Email [e-mail]
3) Physical Location Information:
State NC ZIP Code 27574
Fax: [phone]
Please provide a narrative description of how to get to the facility (use street names, state road numbers, and
distance and direction from a roadway intersection). US5 1 N. Left onto R.T. Hester Road
(A copy of a county map or USGS quad sheet with facility clearly located must be submitted with this application.)
4) Latitude 36°31'59.93"N Longitude 78055'20.75"W (deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
x New or Proposed Facility Date operation is to begin estimated November 2013
❑ Existing
Page 1 of 4
SWU-227-0714D8 Last revised 7114/08

A.
NCG120000 N.Q.I.
6) Standard Industrial Classification:
Provide the 4-digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility.
SIC Code: 4 9 1 1
7) Provide a brief narrative description of the types of industrial activities and products manufactured at
this facility: The site currently is under construction to become a NCDENR _permitted industrial materials
landfill. Once the facilitv receives a permit to duerate. Coal Combustion Residues C( CR) will be transferred
from the nearby Duke Energy Progress, Mao Steam Piant and placed in the newly,constructed fagh .
Heavy equipment will be present on -site to conduct daily „landfill related activities. As a condition, of the
NCG120000 hermit the landfill will maintain an approved sediment and erosion control plan and fulfill the
storm water monitoring requirements listed in the sediment and erosion control plan and subsequent
(quantitative and qualitative) monitoring requirements outlined in the NCG12000.0 permit.
Additionally, the permit issued by the NC Division of Solid Waste requires sampling of surrounding surface
waters for a number of constituents-
8) Discharge points 1 Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater from the property? 3
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
discharges end up in? Bowes Branch
Receiving water classification:
„C„
Is this a 303(d) listed stream? No Has a TMDt_ been approved for this watershed? No
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). NIA
9) Does this facility have any other NPDES permits?
X No
❑ Yes
_ If yes, list the permit numbers for all current NPDES permits for this facility:
. 10) Does this facility have any Non -Discharge permits (ex: recycle permit)?
X No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11)-Does this facility employ any best management practices for stormwater control?
❑ No
X Yes (Show structural BMPs on the site diagram.)
If yes, please briefly describe: The facility is currently conducting construction related activities in
accordance to the approved sediment and erosion control plan and has constructed/implemented the
stormwater control features shown on the attached Site Diagram.
am.
12) Does this facility have a Stormwater Pollution Prevention Plan?
X No
❑ Yes
If yes, when was it implemented?
13) Are vehicle maintenance activities occurring at this facility?
Page 2 of 4
SVVU-227-071408 Last revised 7114108

NCG120000 N.O.I.
No XYes
14) Hazardous Waste:
a) ' Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
X No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
X No ❑ Yes
c) is this facility a Large Quantity Generator (1000 kg. ar rnore of hazardous waste generated per month) of
hazardous waste?
X No ❑ Yes
d) is hazardous waste stored in the 100-year flood plain?
X No ❑ Yes M yes, include information to demonstrate protection from flooding.
e) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport 1 disposal vendor:
Vendor address:
15) Certification:
North Carolina General Statute 143-215.613(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report,
plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who
knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or
who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be
operated or maintained under this Article or rules of the Commission implementing this Article shall be guilty of a Class 2
misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000).
I hereby request coverage under the referenced General Permit. I understand that coverage under this
permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as
an individual permit.
t certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: William J. Thacker
Title: _Plant Manager
c) j A ar
(Signature of Applicant) (Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
Page 3 of 4
SWU-227-071408 Last revised 7114/08

Y
NCG120000 N.O.L .
NCDENR
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
❑ Check for $100 made payable to NCDENR
❑ This completed application and all supporting documents
❑ A site diagram showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater management structures, (c) location of stormwater outfalls
corresponding to the drainage areas, (d) runoff conveyance features, (e) areas where materials are stored,
(f) impervious areas, (g) site property lines.
❑ Copy of county map or USGS quad sheet with location of facility clearly marked on map
Mail the entire package to:
Stormwater Permitting Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee coverage under the NPDES General Permit.
For questions, please contact the DWQ Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ...
[phone]
Mooresville Office...
[phone]
Raleigh Office ........
[phone]
Washington Office ...
[phone]
Wilmington Office ...
[phone]
Winston-Salem ......
[phone]
Central Office .........
[phone]
Page 4 of 4
SWU-227-071408 Last revised 7114108

0.5 0.25 0 0.5
Miles
PREPARED BY:
FACILITY: MAia
VHtrA"LV run: 97
PPROJECT
�® ve Enmay�
it::
"
am0636562024�1y
Golder
SCALE:
TITLE:
® �Q�
11►�7► odates
1:24,000
SITE LOCATION MAP
CHECKED BY% GATE:
PROPOSED MAYO CCP MONOFILL
GOLDER ASSOCIATES NC, INC.
THIS NAP WAS CREATED USING USA TOPOGRAPHIC MAPS
REVIEWED BY S DATE:
THIS FIGURE IS PROPERTY OF PRDGRESS ENERGY OF THE CAROLINAS,
THE MAP IS PROJECTED USING THE NORTH AMERICAN
INC. AND IS NOT TO BE REPRODUCED OR USED FOR ANY PURPOSEEFIGURE 1
DATUM tiva3j STATEPLANE NC FEET GEOGRAPHIC COOROINATE
EXCEPTED AS SPECIFIED SY PROGRESS ENERGY OF THE CAROLINAS, INC.
SYSTEM.

Progress Energy Service Company. LLC on behalf of euka Energy
subsldlades Indudstg Progress Energy, Inc. and Its subsld:anes
Ro. 9ox 1551
Ralelgh, NC 2760E
Check Date
09-SEP-13
K ..
c .ENERGY.
Check Number
227721
Vendor name
N- C DENR
Vendor #
11946
Invoice Number
Invoice Date
Adjustments
Paid Amount
NCDEMRSTRM9313
03-SEP-13
-
I
0.00
I
100.00
I i
I I I
Questions4 Invoice.=[e-mail] $ = 19-1 $ 100.00
se e e• a o a ao a
�• �J
a -a ao
�• o e o •e o
Progress Energy Service Company, LLC
on behalf of Duke Energy subsldlarles
including Progress Energy; Inc, and Its subsidiaries
!
■.' DUKE
Vendor Number 119a6
611 / / n r1
7
. VOID AFTER Q li9rt17,7 21
P.O. Box 1551
ENERGY.
Check Date
Raleigh, NC27602
09-SEP-13 227721
Pay Exactly One Hundred Dollars And
00
TO THE, N C DENR
ORDER STORMWATER PERMITTING PROGRAM
OF 1612 MAIL SVC CTR
RALEIGH, ITC 27699
`WELLS FARGO BANK, N.A.
Augusta, GA
'4� 4l�
Signature

DUKE
ENERGY®
PROGRESS
Mr. Ken Pickle
NC Division of Energy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, NC 27699-1612
File: 12520 B-1
12520 R
12566 D
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
192013
�j
4
<o� 4D
�a�P. ts%4r� .�
Subjects: Duke Energy Progress, Inc. SST .
Mayo Electric Generating Plant CCP Monofill INCH
Submittal of Notice of Intent for coverage under NCG 120000
File:
Dear Mr. Pickle:
As discussed during a meeting held on Wednesday September 1], 2013 between you and representatives
of Duke Energy, please find enclosed a completed Notice of Intent (NOI) for coverage of the Mayo Coal
Combustion Products (CCP) residual Monofll.
The NCG 120000 general permit states that coverage is provided to "All owners or operators of storm
water point source discharges associated with activities categorized as landfills, including
construction and demolition debris landfills, which are permitted by the North Carolina Division of
Waste Management under the provisions and requirements of North Carolina General Statute 130A-
294." The Mayo Monofill received permit number 7305-INDUS-2012 from the North Carolina
Division of Waste Management (DWM) in accordance with North Carolina General Statute 130A-
294. The DWM permit requires Duke Energy to perform twice -yearly surface water monitoring for
an extensive list of constituents.
As discussed, the Mayo monofill is necessary to facilitate the removal of a wastewater discharge to
Mayo Reservoir in accordance with the Special Order by Consent between Duke Energy progress
and the North Carolina Environmental Management Commission EMC SOC WQ S10-012. If there are
any questions regarding the enclosed information, please contact Shannon Langley at [phone].
I 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 qual fed 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. I am aware that there are significant penalties for submilting false information,
including the possibility offrnes and imprisonment for knowing violations.
Enclosure
Sincerely, '4 /
U
William J. Thacker - Manager
Mayo Electric Generating Plant
www.duke-energy.com

11 ; 9 2013
Mr. Ken Pickle
NC Division of Energy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, NC 27699-1612
File: 12520 B-1
12520 R
12566 D
Subjects: Duke Energy Progress, Inc.
Mayo Electric Generating Plant CCP Monofill
Submittal of Notice of Intent for coverage under NCG120000
Cc: Danny Smith w/ enclosure
Raleigh Regional Office Supervisor
1628 Mail Service Center
Raleigh, NC 27699-1628

/o� DUKE
ENERGY®
PROGRESS
Mr. Bradley Bennett
NC Division of l3nergy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, NC 27699-1628
Subject: Duke Energy Progress, Inc. (Duke)
Mayo Steam Electric Generating Plant Monofill
Sampling extension request - NCG 120101
Person County
FiIc: 12520 R
Dear Mr. Bennett:
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
MAY 1 4 2014
RECEIVED
MAY 15 2014
DENR-LAND QUALITY
tTMMWATER PERMITTING
As discussed during a phone conversation between Mr. Shannon Langley of Duke Energy
(Duke) and Dave Parnell of the Raleigh Regional Office on May 2, 2014, Duke hereby requests
modification of the subject permit to allow for collection of the initial storm water samples
analysis associated with the subject permit.
Duke is making this request because, as of the date of this letter, no coal combustion residuals
have been placed into the monofill. In accordance with the terms of the subject permit, storm
water samples ussocruled ivit l industrial acllvlly are required to be sampled between .January 1,
2014 and June 30, 2014 and every six month period thereafter. With no industrial activity to
date, we have been unable to obtain these samples to date. Additionally, prior to operation, Duke
must obtain a certificate to operate the monofill from the North Carolina Division of Waste
Management (NCDWM). Final submittals in order to obtain this certificate are being completed
at this time. Currently, we expect to obtain this certificate in June but that is subject to change
based on the review of NCDWM staff. Modifying the first sampling period to be between .July
1, 2014 and December 31, 2014 would ensure a sample associated with industrial activity could
be obtained after the commissioning of the monof lf.
As discussed, the Mayo monofill is necessary to facilitate the removal of a wastewater discharge to
Mayo Reservoir in accordance with the Special Order by Consent between Duke Energy Progress
and the North Carolina Environmental Management Commission EMC SOC WQ S10-012. If there
arc any questions regarding this request, please contact Shannon Langley at [phone].
Cc: Dave Parnell
DEMLR
1628 Mail Service Center
Raleigh, NC 27699-1628
Sincerely,
v v"vU
William J. " sacker - Manager
Mayo Electric Generating Plant
www.duke-energy.com

Va WR
Noirth Carolina Department of Environment and Natural Resources
Pat McCrary John e. Rvarla, III
Governor Secretary
May 20, 2014
William J, Thacker
Duke Hnergy Prggraesa, Inc,
Mayo Stearn Electric Plante
10660 Boston Road
Rexbovo, NC 27574
Subject; General Plermita No. 14CO12.f 0OQ
Mayo Swam Plant MAnolill
COC NCGI201 1
Person County
Dear Mr, Thacker:
We received your request to modify the monitoring provisions in the above permit
Certificate of Coverage (COC) on May 15, 2014, You requested to delay the initial sampling
period of several of the additional parameters by six months to allow time for the monofill to
begin full operation Your request has been approved, and the modified monitoring schedule
is attached. Please replace the second page of your COC with the enclosed revision.
This permit does not affect the legal requirements to obtain other permits which may
be required by the Division of Energy, Mineral and Land Resources, or permits required by the
Division of Water Resources, Coastal Area Management Act, or any other federal or local
governmental permit that may be required. If you have any questions concerning this permit
modification, please contact Bradley Bennett at telephone [phone], or Bethany.
Georgoulias at telephone [phone],
Sincerely,
for Tracy E. Davis, P,E., CPM
cc: Toby Vinson, Land Quality Section
Dave Parnell, Raleigh Regional Office
Autumn Romanski, DWR Raleigh Regional Office
Sergei Chernikov, DWR Water Quality Permitting Section
Stormwater Permitting Program Piles
DWR Central Files
enclosure
Division of Energy, Mineral, and Land Resources
Energy Section - geological Survey Section • Land Quality Section
1612 Mail Service Center, Raleigh,, North Carolina 27699-1612 - 919-707.92001 FAX: [phone]
612 North Salisbury Street, Raleigh, North Carolina 27604 - Internet: bhp://gortal.ncdenr.org/web/lrl
An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled 110% Post Consumer Paper

Table I Analytical ticall l+Ronitorin Rec uiremen1.4
ts
f�,1[ifseliargMeasurerr►e`nt
)�reyuenCyl5ample
FSampie
Cherx>ical Ox en Demand
m l
semi-annual
Grab
SDO
Fecal Colifor.m
#per 100 ml
semi-annual
Grab
sn0
Total Suspended Solids
mall
semi annual
Grab
SDO
Arsenic (As)5
mg/l
semi-annual
Grab
SDO
Selenium (Se)5
mg/l
semi-annual
Grab
SDO
Boron B S
mg/1
semi-annual
Grab
SDO
5
S.U.
semi-annual
Grab
$DO
Conductivity
S m
semi-annual
Grab
SDO
Antim6py (Sb), Total
mg/I
Grab
SDO
Recoverable
Barium (Ba), Total
mg/1
Grab
SDO
Recoverable -
Beryllium (Be), Total
mg/1
Grab
5D0
Recoverable
Cadmium (Cd), Total
tng/l
Grab
SDO
Recoverable
Chromium (Cr),,' Total
mg/1
Grab
SDO
Recoverable
Copper (Cu), Total
mg/l
Grab
SDO
Recoverable
Lead (Pb), Total
mg/l
Grab
SDO
Recoverable
Once during Jul 1-Dec 31, 2014;
Mercury (Hg), Total
mg/1
Grab
SDO
Recoverable
Once during Jan 1-Jun 30, 2017
'Molybdenum (Mo), Total
mg/l
Grab
SDO
Recoverable
Nickel (Ni), Total
mg/l
Grab
$DO
Recoverable
Silver (Ag), Total
Mg/1
Grab
SDO
Recoverable
Thallium (TI), Total
mg/1
Grab
sbo'
Recoverable
Zinc (Zn), Total
mg/l
Grab
SDO
Recoverable
Total Chloride Cl
m I
Grab
SDO
Total Fluoride F
MEZI
Grab
SDO
Total Sulfate
mgzl
Grab
SDO
Total Hardness
m I
Grab
SDO
Total RainfaI14
inches
semiannual
Rain
gauge
Footnotes:
1 Measurement Frequency: Twice per year or during the specified period, during a measureabie storm event.
2 COC No. NCG120101
effective January 6, 2014, modified May 2Q, 2014

�,DUKE
f} ° ENERGY,
File: Mayo 12520-R
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, Notih Carolina 27699-1617
jXT 1 7 2013
Mayo Steam Plant
Duke Energy Progress
10661) Boston Road
Roxboro, NC 27574
Subject: 1 SA N. C. Admin. Code 2B .0506
Mayo Etectric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Nrrniber NC0038377
Storinwater Discharge Outfall 010 Monitoring Report
Dear Sir or Madam:
In accordance with Pail 1.C. Section E2 of NPDES Permit Number NC0038377, enclosed is the quarterly
2013 Stormwater Discharge Outfall 010 report for Carolina Power & Light Company d/b/a Progress
Energy Carolinas, Inc., now known as Duke Energy Progress, LLC (Progress) - NPDES Permit Number
NC003 83 77.
1 certify, under penally of law, that this document and all atiaclunent.s were prepared guider i nv direction or
supervision in accordance wilh a sYstenr designed to assure iltal gnalifred persamel properly gather and evaluate
the irrforrrratiort srtbtultterf Based on in), lnyulry of the person or persons who inanage the system, or those persons
directly responsible for gathering the itrforwation, the it jorivalion submilled is, to the best of my knowledge rind
belief, trite, uccurale, and coinplete_ I am aware that there a re signtflaanf pcnallies for subrnitting false
information, including the possibility offines and intprisomnent for knowing violations.
Please contact Mr. Shatmon Langley at [phone], if there are arty questions concerning the data in
this submittal.
Sincerely,
Enclosures
'�td4 j dL4"
William J. Thacker- Manager
Mayo Electric Generating Plant
wtivvt.du ke-energy.conn

Permit Number: NC
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
1
COP U`e'& o
P s S�7a
V l
NCQI)38377 SAMPLES COLLECTED DURING CALENDAR YEAR: 2013 iv-�Q a --
(This monitoring report shall be received by the Division no bier than 30 days from j N Co 6 3 $ 7j-7 —7,
the date the facility receives the sampling results from the laboratory.)
FACILITY NAME Mayo. Stearn Electric Plant County Person
PERSON COLLECTING SAMPLFIS) Herbert M. Lea, Jr. Pho a No. 3 -597-7 9
CERTIFIED LABORATORY(S) Mayo Plant Cab Lab ## 5064 ". - P ,
PACE Analytical Lab # 40/503/530 (SIGNATURE OF PfRMITEE DESIGNEE)
Part A: Specific Monitoring Requirements
No ..Sample,
Coif .. ea ect
.: rrioltlttivr
;::...'
5uspendeti� � Grease Fatal; :� Total .: -
'•Soilds-�
<1.1
4 this signature, I certify that this report is accurate
and complete to the best of my knowledge.
U114T,at: Q04Q0:.._. 01097::: 01022 ,
.i rnl sm pN Ann
{
uell E °std. vriits 1MA::.: .`:_ ugll
Alurnirtsttrs: . �5ulfate.
` tRjl .: . ttigf l
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part B )
Part 8: NA
Mail Angina an one copy to:
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled) Division of Water Quafity
Date 9/21/2013 Date Attn: Central Files
Tota) Event Precipitation {inches) 0.45 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 12 event duration (hours): Raleigh, North Carolina 27699-1527
I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervislon in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based an 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 sign'Ticant penalities for submitting false
information, Including the possibility of fines and imprisonment for knowing violations."
William J. Thacker Date
Permittee ( Sig at a of Wrmitteef

r
r
r�
Permit Number: NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLE(S)
CERWIED LABORATORY(S)
Part A: Speck Monitoring Requirements
STORMWATER DISCHARGE OUTFACE (SDO)
MONITORING REPORT
Mayo Steam Electric Plant
Herbert M. Lea, Jr.
SAMPLES COLLECTED DURING CALENDAR YEAR: 2013
(This monitoring report shall be received by the Divislon no later than 30 days from
the Gate the tacllrry receives the sampling results from the laboratory.)
County Person
Phone No 336r597-7 O9
Mayo Plant Lab Lab # 5064 ZPi4•r /it ,
PACE Analytical Lab # 40/503/530 (5[GNATURE OF PERMITEE OR IGNEE)
By this signature, t certify that this report is accurate
and complete to the best of my knowledge.
Ctutfal( 17ate >.:i '=:;:01012.:::
n, r -
.'No fit le'. :Be Ifiu Cad `.Chrotsiiu Eeadi Nfckel.•`
p ry . m..:: tTlfum m-: Zinc . CaJrt rri::..
lfected
: rr►olfjdlYr uF,13.....: ":.=, tig/I r. ; ..uEli .. cif.:'... >u�/l 'u�
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part B )
Part B: INA
Marl Original and one copy to:
STORM EVENT CHARACTERISTICS (if more than one storm event was sampled) Division of Water Quality
Date 9/21/2013 Date Attn: Central files
Total Event Precipitation (inches) 0.45 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 12 event duration (hours): Raleigh, North Carolina 27699-1617
I certify, under penalty of law, that this document and all attathmenes were prep@ red under my drrectian or toper ision In saordance with a system designed to assure that gtartrred
pusonnel propertygatherand evaluate the inforrnatian submitted. Based on my inquiry of the person or persons who manage the system, or thou persons directly responsiolo for gathering
the in(0MU%jprt, the informatren sibmitMif il. to the best of my knowledge and belief, true, accurate, and complem ISM aware that them are dgnleicant penarcies for subrnlft ng false
informatiort, including the possibility of fines and irrr000rwn ant for knowing vfpbttons."
William J. Thacker I—JLA. Date
Permittee ( sign(ur of Permittee)

DUKE
ENERGY,
•, 1'P �"fr5�
File: Mayo 12520-R
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Mayo Steam Plant
Duke Energy Progress
10660 Boston Road
Roxboro, NC 27574
JUN 2 6 2013
Subject: 15A N. C. Admin. Code 213 .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NCO038377
Slorm water Discharge Outfall 010 Monitoring Report
Dear Sir or Madam:
In accordance with Part I.C. Section E2 of NPDES Permit Number NCO038377, enclosed is the quarterly
2013 Slormwater Discharge Outfall 010 report for Carolina Power & Light Company d/b/a Progress
Energy Carolinas, Inc., a wholly owned subsidiary of Duke Energy Corporation - NPDES Permit Number
NC0038377.
1 ecru&. under penalty of lent, that this docrrnrent and all altachments ir,ere prepared wider nay direction a•
super•yision in accordance it,ith a system designed to assure that qualified per-swmel pr•aperl1, gather crud eualuale
the inforvratiarr .subrrritled. Based on rrry inquii j, of the person nr persons iyho nratiage the s}stenr, err those persons
directly r•espon.sible far gathering the hifni-matiwr, the infar•sratinn submitted is, to the hest of my kno»'ledge= and
belief true, accto•ale, and complete, 1 am a+rrrr•e that there a re significant penalties.fin, •submiiling false
infor•nrraiom including the possibility, of fines and imprisanmeut for knrnring vinlalit>ns.
Please contact Mr. Shannon Langley at [phone], if there are any questions concerning, the data in
this submittal.
Sincerely,
Enclosures
4VA j d�ek
William J. Thacker- Manager
Mayo Electric Generating Plant
www.duke,energy.com

Permit Number: NC NCO038377
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Herbert M. Lea, Jr.
CERTIFIED LABORATORY(S) Mayo Plant Lab
PACE Analytical
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OUITFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2013
(This monitoring report shall be received by the Division no later than 3O days from
the date the facility receives the sampling results from the laboratory.)
County Person
Phone No. 336�5� 97-730947— 0
Lab # S064
Lab # 40/503/530 (SIGNATURE OF PERMITEa;6R DESIGNEE)
By this signature, I certify that this report is accurate
and complete to the best of my knowledge.
.. f
Outfall
No,
Date
Sample
Collected
00530
00556
01002
1 01042
1 80103-
71900
01147
1 00400
1 ;01097
61022
01165
00945
Total
Suspended
Solids
Oil and
Grease
Arsenic
Total
Copper
Total
COD
Mercury
Selenium .
pH
Antimony
Boron
Aluminum
Sulfate
mo/dd/yr
mg/I
mg/I
ug.A
I ug/I
mg/I
ug/1
ug/E
1 std. units
ug/I
ug/I
ug/I
mg/I
Outfall o10
5 6 2013
20.6
<1.1
0,52
1.1
40.0
0.0108
035
6.05
<0.050
6.5
145
3.6
Does this facility perform vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? - No
( if yes complete Part B ]
Part B: NA
Mail Original and one copy to:
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled) Division of Water Quality
Date 5/6/2013 Date . - Attn: Central Files
Total Event Precipitation {inches) 1.9 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 8,25 event duration (hours): Raleigh, North Carolina 27699-1617
"I 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 property 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. I am aware that there are significant penalitles for submitting false
information, including the possibility of fines and imprioonment for knowing violations." �,Lu,
William 1. Thacker A& � aw�A' Date b
Permittee (SiBblAure of Permlttee)

Permit Number: NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Mayo Steam Electric Plant
Herbert M. Lea, Jr.
Mayo Plant Lab
PACE Analytical
Lab #
SAMPLES COLLECTED DURING CALENDAR YEAR:
2013
(This monitoring report shall be received by the Division no later than 3o days from
the Date the iaalrty receives the sampling results tram the
laooratory,l
County
Person
Phone No.
336-597-7309 r
5064
Lab # 40/503/530 (SIGNATURE OF PERMITEE OR DES)GNEE)
By this signature, I Certify that this report is accurate
and complete to the best of my knowledge.
Outfall
No.
Date
Sample
Collected
01012
01027
1 01634
01051
01067
01077
01059
01092
00916
Beryllium
Cadmium
Chromium
Lead
Nickel
Silver
Thallium
Zinc
Calcium
mo/dd/yr
ug/1
ug/I
ug/I
ug/1
u9/1
ug/I
ug/I
ug/I
ug/I
Outfall010
5 6 2013
<0.25 1
<0.050
1.5
<0.50
2.1
<0.050
<0.050
4.2
9310
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( if yes complete Part B )
Part s: NA
STORM EVENT CHARACTERISTICS
Date 5/6/2013
Total Event Precipitation (inches) 1.9
event duration (hours): 8.25
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches)
event duration (hours):
No
Mail original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina 27699-1617
` I certify, under Pena Ky of law, that this document and aIt attarm+ , nts were prepared under my direction or supervision in accordance wnh a system designed to assure that qualified
Personnel properly gather and evatuwte the informatDon submirted. Based on my inquiry of the person or oetsons who manage the system, of those persons directly responsible far gathering
the infam:atian, the information submitted is. to the best of my knowledge and Percf, true, accurate. and complete. I am aware that -here re signer nt lilies tvr ssbminirg false
information, inducting the possibility of fines and imprisonment for knowing violations."
William J. Thacker Date
Permittee ( Signatu a Permittee)

r
�, � ° egress Energy
Pile: Mayo 12520-R
NC Division of Environmental Management
Division of Water Quality
ATTENTION. Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
kAR 1 7 2013
Subject: 15A N. C. Admin. Code 2B .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NCO038377
Stornnwater Discharge Outfall 0)0 Monitoring Report
Dear S 4r or Madam;
In accordance with Part I .C. Section E2 of NPDES Permit Number NC0038377, enclosed is the quarterly
2013 Stormwater Discharge Outfall 010 report for Carolina Power & Light Company d/b/a Progress
Energy Carolinas, ]no., a wholly owned subsidiary of Duke Energy Corporation - NPDES Permit Number
NC0038377.
l certify, wider penalhz oflmv, that this document and all attachmenrs were prepared under my direction or
supervision in accordance �i,llh a syslem designed to azure that qualified personnel properly gather and evaluate
the it formation submitted. Based on my inquh), of the person or persons who manage the system, or those persons
dtreclly responsible for gathering tho iq onnanon, the it forrnallon subrnirled is, to the best of ►try knowledge and
belief, trite, ocrurate, and complete. 1 am aware that there a re signlflcanl penalties far s:tbtrrining false
informatinn, including the posslbillly offincs and imprisonment for kno►,ing violations.
Please contact Mr. Steve Cahoon at [phone], if there are any questions concerning the data in this
submittal.
Sincerely,
Enclosures w
d
Prioress Emtgy Carolinas, Inc.
Maim F=ant
1. 10i Ea mn na- A
F:nb::w, NC :T,74
William J. Thacker- Manager
Mayo Electric Generating Plant

Permit Number: NC NCO038377
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Herbert M. Lea, Jr.
STORM WATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2013
(This monitoring report shalt be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
County Person
Phone No- 336-597-7309
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab # 5064 , g,
PACE Analytical Lab # 40/503/530 (SIGNATURE OF PERMITEE OR SIGNEE)
ey this signature, I certify that this report is accurate
and complete to the best of my knowledge.
Part A. Specific Monitoring Requirements
.4)0530.:, ::.
Q0555
O1fl02, `::::.:01042
, .
$0103....
739Dt?:.:
:: 01147;
O(1400
{73i}97. ;
:<:02022 .
: 01105 ...:.
06945
No
:..
Sample
Total
Oil anti
Arsenic-`:
Copper,
:COD
Merrtiry
SBieniuin;
.^ 'pH.:
Antiffiony
: Horan
nntinurrt
Sulfate
Cdlected
. Suspended ` .:
Grease
. :Total :.:.:',':
'Total
mo%dd/yr
:. tng jl::''.
std: units-
tia/1'..`:
:::.u�/I:
ciRLf
nigh
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
No
( if yes complete Part B }
Part 8: NA
M ail Orig inal a nd one copy to:
STORM EVENT CHARACTERISTICS (if more than one storm event was sampled)
Division of Water Quality
Date 2/19/2013 Date
Attn: Central Files
Total Event Precipitation (Inches) 0.12 Total Event Precipitation (inches)
1617 Mail Services Center
event duration (hours): 4 event duration (hours):
Raleigh, North Carolina 27699-1617
"I certify, under penalty of taw, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified
personnel property gather and evaluate the infofmation submitted- Based on my inqufry 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. I am aware that there are significant
penalities far submitting false
information, including the possibility of fines and imprioonment for knowing violations."
/�/� ,
Wil liam J. Thacker la'l/I/ �./
I
Date
Permittee ( Signature of Permittee)

T V 1
Permit Number. NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLES)
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
STORMWATE=R DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Ma o Steam Electric Plant
Herbert M. Lea, Jr.
Mayo Plant Lab Lab #t
PACE Analytical Lab 9
Cliitfa{I..:. Date.:.. Of012 :, 01027.:, 1
Sample -Be urn--
�dirtiuoit . .: Ch
Collected . .
SAMPLES COLLECTED DURENG CALENDAR YEAR: 2013
(This monitodre reportshall be recelved by the Division na later Than 3o days from
the date the tac9ity receives the sampling results tram the Iatioratory.)
County Person
Phone No_ 335-597-7309 +
5064 /' , -F. //"
40/503/530 (SIGNATURE OF PERMITEE O E5IGNEE)
4 this signature, l certify that this report is accurate
and complete to the best of my knwMedge.
)34
fl 435i :..:::`
_. ' Q1(367::
`.::: 01. 077 .
'--.01Q59 .:.
.:.. 01092 .:
nlutn
Lead :
:Nirel :
;..'.:Silver- ...
:::.:Thallit[m
zinc. •
:.: Calcrtim:
ifg/I.
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( if yes complete Part 8 )
Part B: NA
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled)
Date 2/19/2013 Date
Total Event Precipitation (inches) 0.12 Total Event Precipitation (inches)
event duration (hours): 4 event duration (hours):
No
Mail Original and one copy to:
Division of Water Quality
Attn: Central files
1617 Mail Services Center
Raleigh, North Carolina 77699-1617
'I certify, under penatty of haw, shot this document and all attachments wtre prepared under my 6rcmian ar wpervision in accordsmc with a system de-4rjcd to assure that cruaf fic d
personnelproperty gather and evah late the k0ormation submitted. Based on my mgiAry of the person or persons who mar age the system, qr those persons iirezt3V respo=lblc for pVteriag
the information, the Information ctbrnitteed ts, to the bestef my knawfe dye and belW. true, ornate, and complete. I am 3w2re that there are sienficant aena6tks for submitting false
infvrrnatium indodng the p=slbditr of rmes and hr;irk manent its lehowlng viola [ions." J
William J. Thacker Date �'
Permittee ( Signature of Perrnitt e)

iI
Progress Energy
NOV 2 8 2012
File: Mayo 12520-R
NC Division of Environmental Management
Division of Water Quality
ATTf;NTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: 15A N. C. Admin, Code 213 .0506
Mayo Electric Generating 1'laut
National Poilutant Discharge Elimination System MDES) Number NCO03 8377
Starmwater Discharge Outfall 010 Monitoring Report
Dear Sir or Madam:
In accordance with Part I.C. Section 1;2 of NPDES Permit Number NCO038377, enclosed is the quarterly
2012 StorniNvater Discharge Outfall 010 report for Carolina Power & Light Company d/b/a Progress
Energy Carolinas, Inc., a wholly owned subsidiary of Duke Energy Corporation - NPDES Permit Number
NC0038377,
! cert jy, under penalty of late, that this document and all attachments were prepared trader no, direction or
.supervision in accordance with a syslem designed to assure that grrallfredpersonno!l properly garher and evaluate
the inforrrtatrorr srrbrniiied Based on m}, ingrtir y of the person or persarrs who manage the syslem, or those persons
directly responsible for gaiharing the it formation, the h!forrnatirnr submitlad is, to the best gfmy knowledge and
belief, tare, accrrrale, and complete; 1 am aware that !here a re significant penaltics for submitting false
igformaiion, including the possibility p f flees and imprisonmetrt far knowing violations.
Please contact Mr, Steve Cahoon al [phone], if there are any questions concerning the data in this
submittal.
Sincerely,
Enclosures �" , d J",-
Progress Erimmy Cr roltrns, Inc.
William J. Thacker- Manager
Mayo Electric Generating Plant

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NC NCO038377 SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
FACILITY NAME Maya Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Herbert M. Lea, Jr.
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
Mayo Plant Lab Lab ##
PACE Analytical Lab #
('this monitoring report shair be received by the Division no later than 30 days from
the date the facRtty receives the sampling resut's from the laboratory.)
County Person
Phone No. 336-597-730g
5064.
40/503/530 (SIGNATURE OF PERMITEE OR'OESIGNEE)
By this signature, I certify that this report is accurate
and complete to the best cf my knowledge.
Ouffall
No.
Date
Sample
Collected
005,30:
'00556.:
01002; .
.:.01Q42`:
::.:80103 .:
;. .71900:
:.:.01147,
....00400
. -01097
:::01022.'
.,:01105
%5..
Total
Suspended
Solids:
oil and'
Grease..
Arsenio'
Total
:Copper.
:: C00: _
.-lytercury.:;,
4letiiut�
pH.
:Antirnan
Boron
aluminum:
Sulfate
mo/dd/yr
mgfl
mg/I
ugp .
ugA.:
r mg/1 `.
.610.:
6g/1:
std, units
ug/I
ugjl
ug/1
MUI
Outfal1010
10 29/ 0012
10
<1.1
0.81
4.1
cZ5.0
0.0054
0.26
6.09
0.20
11.0
472
28.4
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( if yes complete Part B )
Part B: NA
STORM EVENT CHARACTERISTICS
Date 10/29/2012
Total Event Precipitation (inches) 0.5
event duration (hours). 29
( if more than one storm event was sampled)
Date
Total Event Precipitation (inches)
event duration (hours):
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina 27699-16I7
I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system desfgned to assure that qualified
personnel properly gather and evaluate the information submr tied. Based on my Inquiry of the person or persons who manage the system, or those persons directty responsible for gathering
the information, the information submitted is, to the best of my knowledge and heGef, true, accurate, and complete. I am aware that there are signiflt:ant penatittes for submitting false
information, including the pussJbility of fines and imprioonment for knowing ablations."
William J.'Thacker
Per mittee
t ig Lure of Perminee€
Date ( 'I Le Za! L

Permit Number: INC NCO039377
FACILITY NAME
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
outfafi �j
No.
Date
Sairtple
Collected -
03012
Berylfiul
1
r
STORMWATER DISCHARGE OUTFALL (5130)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
(This monitoring report shall be received by the Division no tater than 3b days from
the date the tacillity receives the sampling results from the taneratory.l
Mayo Steam Electric Plant
County Person
Herbert M. Lea, Jr.
Phone No. 336-597-7309
Mayo Plant Lab Lab #
5064 ! �• • .� %} ;�? < r
PACE Analytical Lab #
40/503/530 (SIGNATURE OF PERMITEE OR DESIGNEE)
By this signarsre. I certify that this report is accurate
and complete to the best of eny knowledge.
01027
-01034 :.
t11053:.:,:.-....:..
, 01067 .
02077 ;
A1059
Cadmium
-'Chromitini -.
Lead.:.:.:
:'!,Nickel 1'
Silver-
.Thallium:.:
Zinc
ug/f
..Ug/ll
Awl..
::.:-Efe .- -
- :. ugfl
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( it yes complete Part 8 )
Part 8: NA
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled)
Date 10/29/2012 Date
Total Event Precipitation (inches) 0.5 Total Event Precipitation (incites)
event duration (hours): 29 event duration (hours):
No
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina Z7699-1617
I cer:dy, under periahyel4w, that thA doaament and all attachmgrnts were prepared under mydrectipn a sapervision in a::ordanQ with a syrrm de! i"d to assure that qualified
Ketsoanet rroperly gather and evafuareoe rnronnatien submitted. Based on my mquiry of the person orperso s who manap the system, or those persons drrectlq retpornib'e for gathering
the mlormauon, the infunutic n submitted is, to the Lett cf nny knowledge and belief, truer accarale, and ramotcteI t am aware that there are siynifim x ocnaIWes for tubmittin=rake
infomstiomindedingthe pwitigayoffinesandin`ipri rri*mfor knowingVxLaftnr" f
William J_ Thacker GCS �/LfiLc Date / t �� !L
PerMittee (SiOlure of Permittee)

progress Energy
5 CA4i 0 /`- . JUL 2 6 291
File: Mayo 12520-R
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: 15A N. C. Adunin. Code 213 .0506
Mayo Electric Generating Plaint
Nationai Pollutant Discharge Eliminatiun System (NPDl.S) Number NC0039377
Stormwatcr Discharge Outfall 010 Monitoring Rcport
Dear Sir or Madtnn:
In accordance with Part I.C. Section L2 of NPDF,S Permit Nw7iber NC0038377, enclosed is -the quarterly
2012 Siorrnwater Discharge Outfill 010 report for Progress Energy's Maya Electric Generating Plant.
I certifi,. mider• penulty of'law, that this docume+rt here prepared under my direclio+r or
super i�ision in accardanc•e, with as �srern designed to assure that qual�4d personnel properly gather and evaluate
the igformalion suhuritred. Based nn nrY inquire gf the person Or persons who mancrge the system, or rhuse persons
directly responsihle for gathering the inforwadon, the information submitted is, to the hest of mY knoivletlge and
holh.,.f n'uv, accurate, and complete. I uur utisirrc that there tr rig s'i rrificaru pe+urlties'•Jo+' srthmilfi+ag false
irrfbonation, including the pussihili{y of fines and imprisomuent for knowing riolations.
Please contact Mr, Steve Cahoon at (9 [ 9) 546-7457, if thus are any questions concerning the data in this
SilhElllttal.
Sincerely,
I"M I O S II FCS
Prngrms Encrpy CwOnm;. Inc.
,�� j �(W�
William ,I. Thacker- Mmager
Mayo Liectric Generating Plant

File: Mayo 12520-R
NC Division of nvironmental Management
Division of Water Quality
AITENTIQN: Central C"iles
1617 Mail Scrvice Center
Raleigh, North Carolina 27699-1617
SubJect: l5A N. C. Admin. Code 2B .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NpDCS) NuittbVFNC'003$377
Discharge Monitoring Report (DMR)
bc: Mr. Stesve Cahoon (W/cnclosurcS)
14Is. Dulcie F. Phillips (w/enclosures)

STORMWATER DISCHARGE OUTFALi_ (SDO)
MONITORING REPORT
Permit Number: NC NCO038377 SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Herbert M. Lea, Jr.
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab 4
PACE Analytical Lab ft
Part A: Specific Monitoring Requirements
(This monitoring repart shall be received by the Division no Pater than 30 days from
the date the facility receives the sampling results from the laboratory.)
County Person
Phone_ No. 336-597-7309
5064 /. l
40/503/530 {SIGNATURE OF PERMITEF OR [81GNEE)
By this signature, i certify that this report is accurate
and complete to the best of my knowledge.
Out€all
No.
Date
Sample
Colfected
00530
00556.
01002
01042
80103
71900
01147
00400
01097
01022
01105
00945
Total
Suspended
Solids
Oil and
Grease
Arsenic
Total
Copper
Total
COD
Mercury
Selenium
pH
Antimony
Boron
Aluminum
Sulfate
mo/dd/yr
mg/l
mg/I.
I ug/1
I ug/I
mg/I
ug/I
ug/)
1 std, units
ug/i
ug/I
ug/I
Mg/I
Outta11010
611 2012
21.5
<1.1
0.41
1.4
Q5.0
0.0028
0.33
6.58
<0.25
7.4
359
3.8
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part B )
Part e: NA
Mail Original and one copy to:
STORM EVENT CHARACTERISTICS { if more than one storm event was sampled) Division of Water Quality
Date 6/11/2012 Date Attn: Centrat Files
Total Event Precipitation (inches) 0.2 Total Event Precip� itation (inches) 1617 Mail Services Center
event duration thours): 1.42 event duration (hours): Raleigh, North Carolina 27599-1617
" I certify, under penalty of law, that this document and all attachments werieprepared under my direction er supervision in accordance With a system designed to assure that qualified
personnel properly gather and evaluate the informatioa submitted. Based on my inquiry of the person Or persons who manage the system, or those persons directly responsible forgathering
the Information, the information submitted Is, to the best of my knowledge and belief, true, accurate, and complete. lam aware that there are significant tlenalities far submitting false
infortttatran, including the possibiiity or fines and imprioonment for knowing viofations." William J. Thar:ker '0J�'�— Date 71Z;9// Z
Permittee ( Sign 61
of Pennittee)

Permit Number: NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLE(5)
CERTIFIED LARORATORY(S)
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Maya Steam Electric Plant
Herbert M. Lea, Jr.
Mayo Plant Lab
SAMPLES COLLECTED DURING CALENDAR YEAR: 7012
IThis monitorrnC report shall be received by the DMsion no later than 30 days from
the pate the facility receives the sampling results born the ianoraiory.l
County Per on
P"ne No. r 336.597-73
Lab # 5064 1
i:--�. 1.�1% �r i
PACE Analytical Lab # 40/503/530 {SIGNATURE OF PERMITEF OR D161 NEE)
8y this signature, i certify that this report is accurate
and complete to the best of my knowiedge.
Outfall
Date
01012
01027
01D34
01051
01067
01077
01059
01092
No.
Sample
Collected
Beryllium
Cadmium
Chromium
Lead
Nickel
Silver
Thallium
Zinc
mo/dd/yr
1 ug/I
ug/I
ug/1
ug/I
ug/I
ug/I
ug/I
ug/I
Outfal1010
6 12 2012
<o.092
<0.028
1.2
0.39
1.4
<0.25
<0.050
4.5
Does this facility perform Vehicle Maintenance Activities using more than 55 gaiions of new motor oil per month? No
( if yes complete Part B )
Part 13: NA
mail MigInal and one copy to:
STORM EVENT CHARACTERISTICS (if more than one -storm event was sampled) Division of Water Quality
Date 6/11/2012 Date Attn: Central Files
Total Event. Precipitation (inches) 0.2 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): ---177— event duration (hours): Raleigh, North Carolina 27699-1617
" I certify, under penalty o! law, that this documcm and ail attschroeets were prapared under my dgect:oi v, supervl&W in accordan with a rystern des:gned to assure that trualdied -
zersonrrei proper\t gather and evasrate the Oormat.tm submitted. Based on my rncr .ry of the person or persons who manage the systarn, or those persons d-recdy responsib:e fcrgatharote
the mrorna:ion, the infarnutron submmrd n. to the best of my knoWecage and better, trwl, accurate. and co" pleto. I am aware that there are si¢n!hcanc certa8p¢s fpr subnuiting!alse
inforrnatmon. ,nAtEtng the posslb'_'ty d Tres and irncri canment for Itnc—r g vie:atzans,'
Witliam J. Thacker
Permittee
I Signat Permittee)
Date r] / 2 j; 1 1 Z

r-roress Energy
File: Mayo 12520-R
NC Division of Envirouniental Management
Division of Water Quality
An'r,NTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
ADR 201
Subject: 15A N. C. Admin. Code 28 .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NCO038377
Stormwater Discharge Oulfall 010 Monitoring Report
Dear Sir or Madam:
In accordance with Pars 1.C. Section E2 of NPDES Permit Number NCO038377, enclosed is the serni-
annual 2012 Stormwater Discharge Outfall 010 report for Progress Energy's Mayo Electric Generating
Plant,
1 cerlifi', under penall'v oflmt,, that this docrurtem and all attachments were prepared under' my direction or
srtper vision a in accardnce Will a s"mlem designed to assure that qualified personnel properlygafher curd et�alrrale
the information submitted. Dt+sud on my inquily of the person or persons who manage the system, or those persons
direcllr responsible for gathering fire information, /be information submftled is, to the hest of tnti, knowledge and
belief, true, accuraie, and complete. I am aware that there a r•e sigrriIIcant perrddlles for submitting false
Arfoi,mation, including theposxibih'1Y affrrc8 and imprisonment for knowing violations.
Please contact Mr. Steve Cahoon at [phone], if there are any questions concerning, the data in this
submittal.
Sincerely,
Enclosures
Prugress Energy Cnrolinas.tnc.
1 �'r,f:h iti=a411 i q:i:11
Wit pc�4.
William J. Thacker- Manager
Mayo Electric Generating Plant

STORMWATER DISCHARGE OUTFALL (5DO)
MONITORING REPORT
Permit Number: NC NCQ038377 SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(5) Herbert M. Lea, Jr.
CERTIFIED LABORATORY(5) Mayo Plant Lab
PACE Analytical
Part A. Specific Monitoring Requirements
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the [aboratory.)
County Person
Phape No. 336-597-7309.E
Lab # 5064 i3�� �Cj�I ,,.1 ,
Lab # 40/503/530 (SIGNATURE OF PERMITEE OR DJ�91GNEE)
ay this signature. I certify that this report is accurate
and complete to the best of my knowledge.
Outfall
No.
k Date
Sample
Collected
00530
00556..
01002
01042
8U303:
71900
.01,147
00400
.01097
01022.
01105
D0945
Total
Suspended
Solids
oil and:
Grease
Arsenio
Total
Copper..
Total
'COD
Mercury
Selenium ,
pH
Antimony
Boron-
Aluminum
Sulfate
coo/dd/yr
mg/1
mg/I
u8/1
ug/l .
mglE
ugA
ug/l
I std. units
ug/l
ug/l
ug/I
I mg/1
Outfall010
3/15 2012
12.2
2.2
<0.69
2.8
46.0
0.0121,
<1.1
6.42
<1.2
20.2
349
6.6
"- Above the 0.01Z ug/I limit
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes compete Part B )
Part 8: NA
Mail Original and one copy to:
STORM EVENT CHARACTERISTICS (if more than one storm event was sampled) Division of Water Quality
Date 3/15/2012 Date Attn: Central files
Total Event Precipitation (inches) 0.12 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 0.5 event duration (hours): Raleigh, North Carolina Z7599-1617
'I certify, under penalty of taw, that this document and all attachments were prepared under my direction or supervision in accordance wish 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 submined is, to the crest of my knowledge and belief, true, accurate, and complete. I am aware that there are slgntficant penarttes for submitting false
information, including the possibliity of tines and imprioonment for knowing violations."
William J. Thacker
Permittee
ba ,f
( S4-n tune of Permirtee)
Date ? L 1Z

Permit Number: NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLE(5)
CERTIFIED LABORATORY(S)
Part A. Specific: Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
_Mayo Steam Electric Plant
Herbert M. Lea, Jr.
Mayo Plant Lab
SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
{This monitoring reportshall be received by the Division no later than 30 days from
the date the Facility rece+ves we saaipting results tram tree taooratery.7
County Person
Phone No. i 336-597-7309
Lab # 5064 `,f 7. c,
PACE Analytical Lab # 40/503/530 'SIGNATURE OF PER ITEE OR DESIGVE)
By this signature, I certify thar this report is accurate
and complete to the best or my knowledge.
Clutfall
No.
pate
Sample
ColW-cted:
01Q12
01027-
01034
01051
A31067
01077-
01U59
01092
Beryiliurh
Cadmium
Chromium
Lead;
-Nicke'l'
Silver
Thallium
Zinc
moldd/yr
ug/I
ug/(
ug/I
ug/l
ug/I
ug/I
ug/l
ug/1
outfalt 010
3 15 201Z
<0.46
<0.14
2.1
1.0
1.7
<1.2
<0.25
<12.5
Does this facility perform vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part B )
Part B; NA
;;Mail Original and one copy to:
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled) Division of Water Quality
Date 3/15/2012 Date Attn: Central Files
Total Event Precipitation (inches) 0.12 Total Event Precipitation (inches) 1617 Mail services Center
event duration (fours): 0.5 event duration (tours): Raleigh, North Carolina 27699-1617
I reftiry, under pensltytt law, that this document and all attachments were prepared under my direction er wperdsian in act kbnce%ith a s/xem de5!$ned to assure that quaElr:ae
permrrael properly gather and evaluate the information submitted. Based on M mquo of the person w persons who manage the system, or these persons directly responiible for gathering
the infartaatim, the Kdorn ation sabrratted is, to the best of my know.edge and belief, true, accurate, and oomplele. I am aware that %here are aiyni iieatnt perrehti es for submit false
information. Indudhg the pnsmisility of fines and on oeioanment for knowYng vio!a%jock.' j
j
William 1. Thacker ,` Date
Permittee {Signature ormi{tee) +

Progress Energy
File: Mayo 12520-R SEP 1 6 r 011
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: 15A N. C. Admin. Code 2B .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NC0038377
Sionnwater Discharge Outfall 010 Monitoring Report
Dear Sir or Madam -
In accordance with Part I,C. Section E2 of NPDES Permit Number NC0038377, enclosed is the semi-
annual 2011 Stormwater Discharge Outfall 010 report for Progress Energy's Mayo Electric Generating
Plant.
1 certify, under penalty of law, that this docrtrnent and all attachments uwe prepared under my direction or .
supervision In accordance with a system designed to assure that grtalified poosorritel properly galher and evaluate
the Information suboitted. Based on my inquiry of the person or persons ivho rua►rage the sJrstenr, or those persons
directly responsible for gatherhtg the h for,uatlon, the information submitted is, to the best of my knowledge and
belief true, accurate, and complete. 1 am aware that there a re significant penalties far submlttingfolse
information, including the possibility offlnes and imprisonment for- knoWng violations.
Please contact Mr. Steve Cahoon at [phone], if there are any questions concerning the data in this
submittal.
Sincerely,
Enclosures
William J. Thticker- Manager
Mayo Electric Generating Plant
Pra?trmn Ertarp Caridinas, Mr.

Permit Number: NC NCO038377
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Richard D. Nowefl
CER-nFIED LABORATORY(S) Mayo Plant Lab
-PACE Analytical
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OU-TFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2011
(rhis monitoring report sNI1 be received by the Dmsiort no later than 30 days from
the date the facility receives the samphng results from the laboratory.)
County Person
Phone No. 336-597-7 32
Lab # 5064 W,�Z,_,'P ,1�:K,�1�
Lab # 40/503/530 (SIGNATURE OF PERMITEE Oft DESIGNEE)
By this signature, I certify that this report is accurate
and complete to the best of my knowledge_
Outfall :
No.
...::Date :.::
5arrtple
Collected:.
..: 00530'.:'
" Q0555
s_0�002 '-
.. OE142 T
y..:b17.
.., a1Cf�?„
_,; 0]1i35,
Of195..:,
1 ntaE :.
:.
5uspentled
flil `anti)
.:
Grease
>Arsenlc .
rbtat
CO fser
COS
lVt tzr�t
SeJer t m
p
Atrttrr Y
Sdrnit
AfurrtlnuM
r
Soffaie
/56
mo/dd r
y
... "
:- 1, : "
..
.:.rn
�g7( =: `:-
a { ..
.:. Ctt
_.. l
u
_. glF, ..:K
std tmkt5..
, u
tt
1
fit
Outfall010
8/27 2011
13"4
1.4
0,58
1.6
33.0
0.0043
0.41
7.05
0.086
13.8
290
16.6
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
I if yes complete Part B )
Part B: NA
Mail Originalana one copy to:
STORM EVENT CHARACTERISTICS ( if more than one storm event was sampled) Division of Water Quality
Date 8/27/2011 Date Attn: Central Files
Total Event Precipitation (inches) 0.3 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 8.5 event duration (hours): Raleigh, North Carolina 27699-1617
'I certify, under penalty of law, that this document and all attachments were prepared under my drrecdon a 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. I am aware that there are significant Mal [ties for submitting false
information, including the possibility of fines and Impriconment for knowing v;olativns.'
q.
William I. Thacker T�k Date q i l
Perm)ttee (Si at a of Permittee)
,j
� s

Permit Number_ NC NCO039377
EACIUTY NAME
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2011
(This monhodng report shall be received by the E)Mslon Fro titer than M days from
the date the facility receives the samptrhg reSuits from the Iaboratnryj
Maya Steam Electric Plant County Person
Richard D. Nowell Phone No. 336-597-7332
Mayo Plant Lab Lab # 5054
PACE Analytical Lab # 40/503/530 (SIGNATURE OF PERMITEE OR DESIGNEE)
By this Signature, I Certify that this report is accurate
and complete to the hest of my knowfedge-
Out#akl :`
IVo:
Date.
Sarfiple
; :{i1422 :.....:
01D27 . •
. .; 01£334...
D30's
....... .
G1053,, `.
03Q77
�59 ,
13erylflum .
GarJriyum
C3trott�lpi�
1e�tr1
Ntcicef
SiEir�r
7ha{Iltilrti i
ianC
. .
. lle:c
Cote. d
..
..,''
'>
rnoiasilyt
.:::�iF
:.:ugl(.:'
I DUtta I1010 1 8/27120111 U.039 1 < U,U:30 I 1.0 1 U-43 1 0.97 1 < 0,070 I < 0.050 1 5.5 1
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part 8 )
Part a: NA
Mail Original and one cagy to. -
STORM EVENT CHARACTERISTSCS ( ff more than one storm event was sampled) Division of Water Quality
Date 2/27/2011 Date Attn: Central Files
Total Event Precipitation (inches) 0.3 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): 415 event duration (hours): Raleigh, North Carolina 27699-1617
I ter.Ay, under penartygf law, that this document a nd a'[ attaeirments were prepared underm &eMlan or supervision In a=DrdanCe with a system deMgned to assure that qua4fed
personnel preper!y gather anal Eva 51ata the i nfor maiian syt= ci. nand on ny inquiry of the person or persom who manage the system, or those persons directly rstpor,s3ble for pthering
the information, the erdorrrotion submitted is, to the bast aF my knttwIudCo and beLef, true, accurate, and cwnpiete.1 am aware that them are significant Pen antles fix submit tting false
mfor nation, incWng the posdrbnity of Snes and }n, r opntnent for knowlns wb tiaras,'
William 1. Thacker Date jt
Permittee ( r,nature of Petmittee)

Progress Energy
File: Mayo 12520-R JUN 0 9 Z0 11
NC Division of Environmental Management
Division of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: 15A N. C. Admin. Code 213.0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDE,S) Number NCO038377
Storrnwater Discharge Outfall 010 Monitoring Report
Dear Sir or Madam,
]n.accot'dance-with Fart t.C. Section E2 of NPIYE Pertrzif Numlaer NC003$377, ericliised'is the seini�
annual 2011 Stormwater Discharge Outfall 010 report for Progress Energy's Mayo Electric Generating
P1a1et.
1 cert 5r, tinder penalty of law, that INN doctunent and all attachments were prepared tinder »rjl db•ection or
supervision in accordance with a system designer! to assure char qualified personnel pr•oper•ly garner and evaluate
the information subinitred. Based an my inquby of the person or persons who wanage the system, or those persons
directly responsible for gathering the inforntallon, the it formation subinitted is, to the best of my knowledge and
belief, tr uc, accurate, and complete. I arrr rnvrrre that there a r e.rig,rificarat penalties far.su6» rittirrg false
n formation, including the possibility of fries and inrprisonineni fa• knowing violations.
Please contact Mr. Steve Cahoon at [phone], if there are uy questions concerning the data in this
submittal.
Sincerely,
Enclosures
William J. Thacker- Manager
Mayo Electric Generating Plant
Progruss �norgy Corobas, laic.

Permit Number: NC NCG039377
FACILITY NAME Mayo Stem Electric Plant
PERSON COLLECTING 5AMPLE(5) Richard D. NOWEII
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2012
(This menh ng report shalt be received by the Division no later than $0 days from
the datethe factllty receives tie sampling resu Its from the laboratory.)
County Person
Phone No, 336-597-733
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab # 5064
PACE Analytical Lab # 40/503/S30 (SIGNATURE OF PERMITEE OR DESIGNEE)
By this signature, i certify that this reportis accurate
and completeto the best of my knowledge.
Part A: Specific Monitoring Requirements
outfall.
No
-bate;:
aample
.,00530..
0MSli:
02D02:.
.:'.Oltt42
8Q103 _
7]9t)f'
: 01ia7.:
t)044tF
f31093:;`:'
t} tf2
:iri105.;
945 .`
Tfltaf
OIl and .
Arsenee
Coffer ,
E DD`
eiury
SeEenfuitt
RR
lkittt}pny :
8nrvii
iRlurintrtfni
Sulfate.::
SifspIncli
:.
Total
56
..
;taEllts:ug%i
1Qutfall 010 1 5/17/20111 r 152 - .,1 < 1.1 1 1.10 1 ! 9.4 i 1 34.D 1 110175' 1 f}.b8 1 6./4 1 U.2 I 23.8 1 f 4430.0 1 7.5 1
Does thts facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
{ if yes complete Part 8 )
Part B: NA
Mail Originaland one copy to:
STORM EVENT CHARACTERISTICS (if more than one storm event was sampled) Division of Water Quality
Date 5/17/2011 Date Attn: Central Files
Total Event Predpitation (inches) 0.4 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours), 0.5 hr. event duration {hours): Raleigh, North Carolina 27699-1617
" I certify, under penalty of law, that this document and all attarhments were prepared under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gativer and evaluate the information submitted. Based on my inquiryof the person or persons who manage the system, or those persons O reedy responsible for gathering
the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am awarethet there are significant penallties for submitting false
information, lacluOng the possibility of fines and impriconment for know ng violations."
William 1- Thacker
Permittee
( Sign a of Permitteel
Date it ri 1 j

'L,
N
7
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORIN&REPORT
Permit Number: NC NCO038377 SAMPLES COLLECTED DURING CALENDAR YEAR. 2011
(This monitoring report shall be rece'ned by the Division no later than 30 days frum
the Cate ute tadtrty recttrves the sampling MUMS from the laAoratarY.J
FACILITY NAME Mayo Steam Electric Plant County Person
PERSON COLLECTING SAMPLES) Richard D. Nowell Phone No. 336-597-7332
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab # 5064
PACE Analytical Lab # 40/503/530 (SIGNATURE OF PERMffEE OR DESIGNEE)
By this s<gnature, I certify that this report is accurate
and cumplete to the best of my knowledge.
Part A. Specific Monitoring Requirements
Outfall� .:•� :::::�:aate:: ; ..:::.::ff1Q1z.: •:-�: :� � ;:010�� .:�:�-; .:,:,::Q10
Na.: Sample 13InylliuitiCasimsum {�rorr
• � � `. �: � Collected
:._ .: ul :.:::. _ ':_lid
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( if yes complete Part 6 )
Part 8: NA
STORM EVENT CHARACTERISTICS
Date 5/17/2011
Total Event Precipitation (inches) 0.4
event duration (hours): .5 r.
(if more than one storm event was sampled)
Date
Total Event Precipitation (Inches)
event duration (hours):
No
Mail original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina 27699-1617
" I ctnify, under penalty of law, that this document and a II attachments were prepared under my C"racmm or supervision in 2o-wcb ee with a system desVnd to assure that qua lined
personnel properfy pthrr and evaluate the WormaUon subn ittrd Pissed art my inquiry o.'the person or persom who n amEe the system, or thou persons d-itecdy nssponskble forgathering
the kr*,-,eatian, the information s0tw4md Ls, to the best of my knmk*e and belfef, true, accurate, and complete. tam aware that t1x a are sijnireant penafrties for s>l"tting false
information, indudkas the posskdiy of hms and irnpriocnment for lzrorv,g .iolatiotts.' A I /
William J. Thacker Date 6! �!
Permittee ( 5ignatur Pennittee)

�� Progress Energy
Fite: Mayo 12520-R
NC Division of Environmental Management
Division oFWater Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-16I7
Subject: 15A N. C. Admin. Code 213 .0506
Mayo Electric Generating Plant
National .Pollutant Discharge Elimination System (NPDES) Number NO0038377
Stormwater Discharte Outfall 010 il4onitoring Report
Dear Sir or Madam:
In accordance with Part I.C. Section E2 of NPDES Pennit Number NC0038377, enclosed is the serni-
annual 2010 Stormwater Discharge Outfall 010 report for Progress Energy's Mayo Electric Generating
Plant.
I certify, under penalry of lane, that ibis doctrrnent urnd till attachments tivere prepared under rr�v direction or
s'uper'vision in accordance with a slxtenr dcsigired to assure that graal fed personnel properly gather a,atl evahrate
the information submitted. Based on uty iugreir.v of the person or persons who manage the system, or those persons
directly respousrble f6r•gatherin the inforrnalion, lire it jb)-mation subinwed is, it) the best of ary knowledge rnrd
belief, true, accurate, and cornplele. I ant aware dear there a re significant penalties for submittingfalse
information, hwhidin,g the possibility of fines and irnpr•isomnent for luraiving violations.
Please contact Mr. Steve Cahoon at [phone], if there are any questions concerning the data in this
submittal.
Sincerely,
Enclosures
William J. Thacker- Manager
Mayo Electric Generating Plant
Ptogrem En orgy Carolinas. fine.
' ayn'0311 PIX;1
1(;t,'69 Eas s-i RTA
yr,.Fnf.r,, N' ,I' M

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number. NC NCO038377 SAMPLES COLLECTED DURING CALENDAR YEAR: 2010
(This monitoring report shall be received by the ❑ivision no later than 30days from
the date the facility receives the samplrng results from the laboratory.)
FACILITY NAME Mayo Steam Electric Plant County Person
PERSON COLLECTING SAMPLES) Michael Talley Phone o. 3 -597-7 4
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab 4 5064
PACE Analytical Lab 0 40/503/530 (SiGNATu i OF ERMI f QR DESIGNEE)
©y this signature, I certify that this report Is accurate
and complete to the best of my knowledge -
Part A: Specific Monitoring Requirements
Outfall
Date
130S30
oos56.
01002 -.
.. 01042-
80103
71900
01147
00900
01097
01022
01105
00945
No.
sample
Collected
Total
5u.spended
.... Solids
:.Oil. and -
.. Grease - .
:...
Arsenic
Total
:Copper
Total
:COD
)Mercury
Selenium
pH
Antimony
..
Boron
Aluminum
.
Sulfate
mo/dd�yr
mg/I
trig/1
ug/l
ug/I
mg/I
ug/1
ug/l.
std. units
ug/I
u9/1
:ug/l.
ni
Out -fall 010
11 4 2010
8.9
<5.0
<0,5
4.8
<25.0
0.008
<0.5
5.9S*
<0.50
8.3
670.0
15.1
j
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
( if yes complete Part B )
Part 8: NA
STORM EVENT CHARACTERISTICS ( if more than one storm event was'sampled)
Data? 11/4/2010 Date
Total Event Precipitation (inches) 0.3 Total Event Precipitation (inches)
event duration (hours): 6 hrs event duration (hours):
* Ambient pH Value=5.29 std units
No
Mil Original and one copy to.
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina Z7699-1617
I. 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 evaivate the Informaton submitted. Based on my inquiry of the person or persons who manate the system, or those persons directly responsible forgathering
the information, the infomtation submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalities for submitting false
Information, including the possibility of fines and imp.roonment for knowing vlalattom."
William J. Thacker
Permittee
(5ignatur ermittee)
17ate t 2 // 7 /2�r�

Permit Number: NC NCO038377
FACILITY NAME
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S)
Part A. Specific Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Mayo Steam Electric Plant
Michael Talley
Mayo Plant Lab Lab #
SAMPLES COLLECTED DURING CALENDAR YEAR: 2010
(This monitoring report shall be received by the Cimsion no Eater than 30 days from
the date the taolrly receives we sampting results trom the taboraWry.j
County Person
Phon o. 3 G-597-7304
5064 ,
PACE Analytical tab # 40/503/530 (IGNATURE 6F PERMITEE OR IGNEE)
6y this signature, i certify that this re ari is accurate
and complete to the best of my knowledge.
Outfail
Date ."
01012.
01027
01034
01051...
01.057
01077
01059
:03 92 ..
No.
_
'.'Saiziplei
.Collected.
:.Beryllium
..
1fadhfl1urr
Chromium
Lead.:'
Nic&ef
Silver
Thallium,
zinc` '
riio/dd/yr
tug/l
upA
ug/l.
ug/i.' .
ug/l.
ug/I
ug/I
Outfall010
111472010
<0.20
<0.080
2.20
0.81
1.4
<0.50
<0.10
10.4
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part B )
Part B: NA
Mail Original and one copy to:
STORM EVENT CHARACTERISTICS { if more than one storm event was sampled) Division of Water Quality
Date 11/4/2010 Date Attn: Central Files
Total Event Precipitation (inches) 0.3 Total Event Precipitation (inches) 1617 Mail Services Center
event duration (hours): — —6Trs �` event duration (hours): Raleigh, North Carolina 27699-1617
'I certiry, under pena:ty of raw, that this ecrur nt and all atwthments were prepare under my d-rett:en e- supernsian in a=dan_e vr.rh a system des!gned to assure that qua ff ed
personnel property gather and eva!uate tFs 4 fo:nuucn submitted. eased on my inqu:ry of the perum cr perscns %-ho mamge the system, or those persons duect:y responsible far go therm
Ow informatier:, the mfo-matim submitted a, to the test of my kr w:edge and be:ief, true, accurate, and ce plete. I ari aware that there are signAcarst Fena'!&es for submaiing false
info aeon, including the poss:b,i ty of fines and ,mpmOnmert fr. KnOwmg Vlplattons'
William!. Thacker
Permittee
{ Sig(a re of Permittee)
Date ! Z f I :I I ?.0 1a

�*p� Progress Energy
File: Mayo 12520-It
NC Division of Environmental Management
Division. of Water Quality
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-16 l7
MAY 2 5 2010
Subject: 15A N. C. Admin. Code 2E .0506
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System (NPDES) Number NCO038377
Stormwater Discharge Outfall 010 Monitoring Report
Dear Sir or Madam:
In accordance with Part I.C. Section E2 of NPDES Permit Number NC0038377, enclosed is the semi-
annual 2010 Stormwater Discharge Outfall 010 report for Progress Energy's Mayo Electric Generating
Plant.
1 certib,, under penalty of law, that this doctiment and all auachmernts were prepai•erl rtnder my directiott oe
supervision in accordance with a systern designed to assure that qualified personnel properly gather and evaltiate
the information submitted. Based on rrry inquiry of the person oY persons who manage the System, or those persons
directly responsible for gathering the information, the ii forniation submitted is, to the best of my knowledge and
belief, trite, accurate, and complete. 1 ain aware that there a re significant penalties for submitting false
information, Including the possibility off nes and impruonmeni for knowing violations.
Please contact Mr. Steve Cahoon at [phone], if there are any questions concerning the data in this
submittal.
Sincerely,
Enclosures
Eric Northeim- Manager
Mayo Electric Generating Plant
Progress Energy Carolinas. Inc.
1,1di? Seem Han!
I urp Hoston Poal
liukam. %;,' 1ibN

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number: NC NCO038377
FACILITY NAME Mayo Steam Electric Plant
PERSON COLLECTING SAMPLE(S) Michael Talley
CERTIFIED LABORATORY(S) Mayo Plant Lab Lab #
PACE Analytical Lab #
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2010
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory,)
County Person
Phon No 336-597-7304
5064
40/503/530 (SIGNATURE OF PERMItEE OR DESIGNEE)
By this'signature, I certify that this report is accurate
and complete to the best of my knowledge.
�: flLtfall
=Date
Q(353Q ,:.;
_Ofl55& "
:.:010p2 .:'.
..61pAz
:.:'.801t3�.
.,..7]:900., :
,:. 0�47
:_:;004�0.,
.. 01t}9%..
<01t322�•
„ :Q�.1(]�
� ohs., ..
f!io.:
Sam le :
Total
©Maid
:-Arsenic
Cn`.per
;COD
tNecu
'Selenium
#�.. ;:
Antiiioz�
Boron., ..
gltirttnurr3-.
SUlfaiQ .'
F
Solids
�
Y
mo(ddyyr.•
ull..":.
flutfall010
4/21 2010
130
<5.0
0.99
<1.9
68.0
0.011
<0.50
6.08
<0.50
9.0
244.0
<5.0
-------------
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? No
( if yes complete Part 8 )
Part B: NA
IMail Original and one copy to:
STORM EVENT CHARACTERISTICS (if more than one storm event was sampled) Division of Water Quality
Date 4/21/2010 Date Attn: Central Files
Total Event Precipitation (inches) 0-45 Total Event recitation (inches) 1617 Mail Services Center
event duration (hours): 5 hrs event duration (hours): Raleigh, North Carolina 27699-1617
" [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 qual fled
person nei properly gather and evaluate the information submitted. Based on my inquiryof the person or persons who manage the system, or those persons directly responsible forgathering
the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalities far submittfng false
information, including the possribility of fines and imprioonmentfor knowing violations." %
Eric M. Northeim `? J Date
Permittee ( Signature of Permittee)

Permit Number: NC NC0038377
FACILITY NAME
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S)
Part A: Specific Monitoring Requirements
STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: 2010
(This monitoring report shall be received by the Division no later than 30 days from
the date tee rauhty receives the sampling results from the laporatory-j
MaVo Stearn- Electric Plant County Person
Michael Talley Phone No. 336-597-7304
Mayo Plant Lab Lab # 5064
PACE Analytical Lab # 40/503/530 (SIGNATURE OF PERMITEE OR D EGNEE)
By this signature, I certify that this report is accurate
and complete to the best of my knowledge.
Uutfah Date 43,01 01137 `._ Q1Li34 _Di1l.A7 01077..... Q� 47 9 U 92 + . -...,. _'.
No....:, .:..Sant [e Ber 111um :Ci, itiltrrtt Chrornluirt>. Iead :`. , Nikkei; tivec _ThailFuFrf
_
couectQd -
k
c
r '
tvtn/ddlyr
outfall010 4 21/2010 <0.20 <0,080 2.10 0.85 3.5 <0.50 <0.10 6.2
Does this facility perform Vehicle Maintenance Activities using more than SS gallons of new motor oil per month?
( if yes complete Part B )
Part S: NA
STORM EVENT CHARACTERISTICS
Date 4/21/2010
Total Event Precipitation (inches) 0.45
event duration (hours): `" ` r—s
( if more than one storm event was sampled)
Date
Total Event Precipitation (inches)
event duration (hours):
Wil Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Services Center
Raleigh, North Carolina 27699-1617
"I cenify, under penahy of low, that this document and all attachments were prepared under my direction of supervision in accordance with a system designed to assure that qualified
personnel property gather and evaluate the information submitted. Based on my 1"Wry of the person at persons who manage tfu system, or those persons three%!• responsible for gathering
the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penapties for submitting false
informal ion, in Judi n g the possibility of finis and l mprioonment foe knowing violations." 1--7
Eric M. Northeim k. (f ;— �v �f "-i�� Elate 5—/Z �-/ v16
Permittee { Signature of Permittee)

Q� Dl.+�E
ENERGY
Mar. 13, 2017
Mr. Mike Randall
Department of Environmental Quality
1612 - Mail Service Center
Raleigh, NC 27699-1612
Subject: Update of Permit file —
Monofill Storm water drainage area
Duke Energy Progress, LLC - Mayo Steam Electric Plant
Person County
Permit NCG120101
Dear Mr. Randall:
ENS-CCP
410 South Wilmington Street
Mail Code:NCRN15
Raleigh, NC 27601
�1 ?0
Sro����CA,U�QU 1l
TER pCR�L��y,
'fli�y�b oN��b19
The Mayo Steam Electric Plant in Person County operates a CCR monofill off of Highway 501.
The monofill stormwater releases are regulated by stormwater permit NCG120101.
The attached drawing, prepared by Golder Associates, identifies the monofill's rain cover area
and the subsequent non -contact stormwater flow to outfall 001. A review of the initial N01
submittal for this facility, in preparation for renewal of this permit, revealed this flow area was
not represented on the original drawing submitted with the NOI request. There is no direct
contact with CCR materials or leachate from this flow area.
Duke Energy requests the Mayo permit file be updated to reflect this revised record to assure
the areas tributary to each outfall are accurate in your files.
If you have any questions, please contact Lori Tollie at 336.854.4916 or at [e-mail].
Sincerely,
Tom Copolo — Manager
Mayo Electric Generating Plant
Cc: Diane Adams — NCDEQ w/attachment

1 2 3- 4 5 6 7 B 9 10 I1 Ic
DRAINAGE AREA ei �7 • - -.. ^ r� - ~� slm��a �+�.^�1\ \� F
DRA;NAr,E AREA i2
DRAJNADf AREA 91 rIDRAINAGE
DRARAAGE AREA ar AREA
A � DRAINAGE AREA /5
JJ _ _ • _ _ `' �\'� `� . �.. � ��.+�iYi' i ors
SIMMMER BASIX Y♦, MAYO MONOFILL PHASE 1
DRAINAGE
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it , /r•._. ...i. `_-, - YWfALLK / 1-. lw IEET
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PE. c „-_ t DUKE ENERGY PROGRESS, INC �f DUKE
POWER OPERATIONS GROUP !'ENERGY.
Golder P MAYO ►aocA;rss _
_- C 15=817 MONOFILL GENERAL STORMWATER PERMIt
j �aT70Cxat�J SITE DIAGRAM
Q ANS{-0 1--lW MAYO CCP MONOFILL
- - - 9 - IQ 21 12

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CAROLINA POWER B LIGHT COMPANY'S
PERSON COUNTY STEAM ELECTRIC PLANT
MA YO S. / TE
WOODSDALE TOWNSHIP, HOLLOWAY TOWNSHIP & ALLENSVILLE TOWNSHIP
PERSON COUNTY, NORTH CAROLINA
M r4 a wNlr.�r,y N,Nn
supef✓W !NO NAYP/rG 8,
MOORS, "RDNER 8 ASSOCIATES, INC. — E0NSULTIN6 ENGINEERS
A5H£80RO, NORTH CAROGINA
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Mayo Lake Park - Google Maps
Page 1 of 1
Go 9L Maps Mayo Lake Park
Imagery C2017 Commonwealth of Virginia, DigitalGlobe, USDA Farm Service Agency, Map data @2017 Google 1000 ft
hup,,: www,google.com/maps/place/Mayo+Lake+Park/@36.5303677,-78.909031,4398m/... 6/14/2017