Facility Interim Monitoring Plans Networks and Sampling Requirements_20161221

Water Resources
ENVIRONMENTAL QUALITY
PAT MCCRORY
Go.or
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
Director
December 21, 2016
Harry K. Sideris
Senior Vice President
Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
Subject: Facility Interim Monitoring Plans Networks and Sampling Requirements
Dear Mr. Sideris:
The purpose of this letter is to provide clarification for the facility interim monitoring plan
networks and sampling requirements for each of the 14 Duke Energy coal ash facilities in North
Carolina. This technical direction is given to refine the scope of work related to the interim
monitoring plans proposed in the Corrective Action Plans for each facility and expound on
instruction detailed in the September 13, 2016 letter from the North Carolina Department of
Environmental Quality (DEQ) concerning implementation of the before -mentioned plans.
The objective of the interim monitoring plans is to collect data to facilitate completion of the
Groundwater Comprehensive Site Assessments and Corrective Action Plans so that remediation
goals can be established for the 14 Duke Energy coal ash facilities. After reviewing available site
assessment data, additional monitoring network sample locations have been identified and
provided in attached files for each respective facility. The revised facility interim monitoring plans
shall be conducted on a quarterly basis commencing the second quarter of calendar year 2017 until
Corrective Action Plans are accepted for the individual facilities or as directed otherwise by DEQ.
The quarterly sampling events will be conducted in conjunction with planned compliance
monitoring sampling events for three quarters during the calendar year, supplemented with an
additional sampling event conducted at each facility in order to provide four rounds of monitoring
data to evaluate seasonal fluctuations during a year-long timeframe.
The interim monitoring plan shall be conducted in the same manner as previous CAMA corrective
action groundwater and surface water monitoring events. The analyte list and analytical methods
for groundwater and surface water for the interim monitoring plans will reflect what has been
implemented during the Groundwater Comprehensive Site Assessments and the Corrective Action
Plans. Sampling for radionuclides at a limited number of monitoring locations upgradient,
immediately downgradient of the impoundments, and further downgradient of source areas in areas
that exhibit elevated concentrations of constituents of interest shall continue as part of the interim
monitoring program following direction given as comments related to the Groundwater
Comprehensive Site Assessments. Surface water sampling locations will be situated adjacent to
State of North Carolina I Environmental Quality I Water Resources;
1617 Mail service Center I Raleigh, North Carolina 27699-1617
919 707 9000

the bank of the surface water body where potential discharge of contaminated groundwater may
enter as base flow. If sampling an individual groundwater or surface water location is problematic,
please call the Regional Office to discuss. Any changes to interim monitoring network and
sampling requirements must be initiated by official correspondence from either the DEQ Central
Office or Regional Offices.
Document the results of the four quarters of sampling and analysis during the calendar year as an
annual interim monitoring plan report for each subject coal ash facility submitted by April 30' of
the following year. The respective annual monitoring reports shall include figures, tables, cross-
sections, maps, and time -series plots in a manner that provides an integrated, comprehensive
interpretation of site conditions and plume status. Reports submitted in a data summary format
will not be approved as an acceptable documentation of the monitoring program.
The DEQ is open to consider optimization of the interim monitoring plan program following a
qualitative and quantitative review of site-specific data. A thorough analysis of spatial and
temporal trends related to contaminant distribution that include determination of background
conditions and identification of areas impacted by coal ash residuals must be provided as a decision
framework to support improvements to long-term monitoring programs.
If you have any questions, please feel free to contact Steve Lanter at [phone].
Sincerely,
e
S. Jay Zien:, P.G., Director
Division of Water Resources
Attachments: Interim Monitoring Plans for the 14 coal ash facilities
cc: WQROS Regional Offices
WQROS Central File Copy

Allen Steam Station Interim Monitoring Plan
Wells to be Sampled
AB -1R
AB -13D
AB-25BR*
AB -32D
BG -ID
GWA-3S
GWA-15D
GWA-24S
AB -2
AB -13S
AB-25BRU*
AB -32S
BG -1S
GWA-4D
GWA-15S
GWA-24D
AB -21)
AB-14BR
AB -25S
AB -33D
BG-2BR
GWA-4S
GWA-16D
GWA-24BR
AB -413R
AB -14D
AB-25SL
AB -33S
BG -2D
GWA-5BR
GWA-16S
GWA-26S
AB -41)
AB -20D
AB -26D
AB -34D
BG -2S
GWA-51)
GWA-17D
GWA-26D
AB -4S
AB -20S
AB -26S
AB -34S
BG -3D
GWA-5S
GWA-17S
AB -5
AB-21BR
AB -27D
AB-35BR
BG -3S
GWA-6BR
GWA-18D
AB -6A
AB -21D*
AB -27S
AB -35D
BG-4BR
GWA-6DA
GWA-18S
AB -6R
AB -21S
AB -28D
AB -35S
BG -4D
GWA-6S
GWA-19D
AB -8
AB -21 SL
AB -28S
AB -36D
BG -4S
GWA-7D
GWA-19S
AB -91)
AB -22D
AB -29D
AB -36S
GWA-IBR
GWA-7S
GWA-21S
AB -9S
AB -22S
AB -29S
AB -37D
GWA-ID
GWA-8D
GWA-21D
AB -101)
AB-23BRU
AB-29SL
AB -37S
GWA-IS
GWA-8S
GWA-21BR
AB-IOS
AB -23S
AB -30D
AB -38D
GWA-2D
GWA-91)
GWA-22S
AB -111)
AB -24D
AB -30S
AB -38S
GWA-2S
GWA-9S
GWA-22D
13- 122-24S
AB -31D*
AB -39D
GWA-3BR*
GWA-14D*
GWA-23S
AB -12S
AB-24SL
AB -31S
AB -39S
GWA-3D
GWA-14S
GWA-23D
Wells slated for installation/reinstallation that need to be added to monitoring plan once installed
*BG -1D (needs to be reinstalled due to water quality issues - grout contamination)
*BG-2BR (needs to be reinstalled due to water quality issues - grout contamination)
*AB -21D (needs to be reinstalled due to water quality issues - grout contamination)
*AB-25BRU (needs to be reinstalled due to water quality issues - grout contamination)
*AB-25BR (needs to be reinstalled due to water quality issues - grout contamination)
*AB -31D (needs to be reinstalled due to water quality issues - grout contamination)
*GWA-3BR (needs to be reinstalled due to water quality issues - grout contamination)
*GWA-14D (needs to be reinstalled due to water quality issues - grout contamination)
AB-21BRL (vertical delineation - proposed by Duke/HDR)
AB-22BR (vertical delineation - proposed by Duke/HDR)
AB-24BR (vertical delineation - proposed by Duke/HDR)
AB-27BR (vertical delineation - proposed by Duke/HDR)
AB-38BR (vertical delineation - proposed by Duke/HDR)
GWA-4BR (vertical delineation - proposed by Duke/HDR)
GWA-9BR (vertical delineation - proposed by Duke/HDR)
Surface Water Locations to be Sampled
SW -1
SW -2
SW -3
SW -4
SW -5
SW -6
SW -7
Seep Locations to be Sampled
S-1
ANW WO04
ANW WOOL
Page 1 of 1

Asheville Steam Electric Plant Interim Monitoring Plan
Wells to be Sampled
ABMW-04D
APD -7
CB -1
GW-01BR
MW -11D
MW -20A
P-103
PZ -24
ABMW-05BR
AS -11
CB -1D
GW-OID
MW -12D
MW -21D
P-104
PZ -26
ABMW-05S
AS -13
CB -2
GW -1
MW-13BR
MW-22BR
P-105
PZ -27
ABMW-07S
AS -14
CB -3
GW -2
MW -13D
MW -22D
POT -I
PZ -8
ABMW-08
AS -15
CB -3R
GW -3
MW-14BR
MW-23DL
POT -2
ABMW-11BR
AS -16
CB -4
GW -4
MW -15A
MW-23DU
POT -3
ABMW-2
AS -17
CB -4B
GW -5
MW -15D
MW -24S
PZ -12
ABMW-2S
AS -20
CB -5
MW-06BR
MW -16A
MW-2BR
PZ -16
ABMW-4
AS -3
CB -6
MW -06D
MW-16BR
MW -3D
PZ -17D
ABMW-5D
AS4
CB -7
MW -06S
MW -17A
MW4D
PZ -17S
AMW-1B
AS -5
CB -8
MW-09BR
MW-18BR
MW-5BR
PZ -19
AMW-2A
AS -6
CB-8BR
MW -09D
MW-18BRL
MW -5D
PZ -1D
AMW-3A
AS -9
CB -9
MW -09S
MW -18D
MW -8S
PZ -1S
AMW-3B
CB-09BR
DP -I
MW -10
MW -IBR
P-100
PZ -22
APD -1
CB-09SL
DW -6
MW -11
MW -1D
P-101
PZ -23
Surface Water and Seep Locations to be Sampled
SW -06
SW -07
N-01
F-03
64E 1
64E 2
64E 3
82E 1
82E 2

Belews Creek Steam Station Interim Monitoring Plan
Wells to be Sampled
AB -IBR
AB-6SL
BG -1D
GWA-17D
GWA-21S
GWA-31D
GWA-8S
MW-203BR
AB -1D
AB -7D
BG -1S
GWA-17S
GWA-22D
GWA-31S
GWA-9BR
MW -203D
AB -1S
AB -7S
BG-2BR
GWA-18D
GWA-22S
GWA-32D
GWA-9D
MW -203S
AB -2D
AB -8D
BG -2D
GWA-18S
GWA-23D
GWA-32S
GWA-9S
MW -204D
AB -2S
AB -SS
BG -2S
GWA-18SA
GWA-23S
GWA-2D
MW -102D
MW -2045
AB -3D
AB-8SL
BG -3D
GWA-19BR
GWA-24BR
GWA-2S
MW -102S
MW -3
AB -3S
AB-9BR
BG -3S
GWA-19D
GWA-24D
GWA-3D
MW-104BR
AB4BR
AB-9BRD
GWA-10D
GWA-19S
GWA-24S
GWA-3S
MW -104D
AB-4BRD
AB -9D
GWA-IOS
GWA-19SA
GWA-25BR
GWA-4D
MW -1045
AB -4D
AB -9S
GWA-11D
GWA-IBR
GWA-26BR
GWA-5BR2
MW-200BR
AB4S
BC -23A
GWA-11S
GWA-1D
GWA-26D
GWA-5D
MW -200D
AB-4SL
BC -28
GWA-12BR
GWA-IS
GWA-26S
GWA-5S
MW -2005
AB -5D
BCSW-007
GWA-12D
GWA-20BR
GWA-27BR
GWA-6D
MW-201BR
AB -5S
BCSW-008
GWA-12S
GWA-20D
GWA-27D
GWA-6S
MW -201D
AB-5SL
BCSW-018A
GWA-16BR
GWA-20S
GWA-27S
GWA-7D
MW-202BR
AB -6D
BCSW-019
GWA-16D
GWA-20SA
GWA-30D
GWA-7S
MW -202D
AB -6S
BCWW-002
GWA-16S
GWA-21D
GWA-30S
GWA-8D
MW -202S
Surface Water Locations to be Sampled
SW -BL -D
SW -BL -UD
SW -BL -U
S W -DR -D
S W -DR -U
S W-DR-UU
Seep Locations to be Sampled
U

Buck Combined Cycle Station Interim Monitoring Plan
Wells to be Sampled
AB -1D
AB-6BRU
AS -31)
GWA-2S
GWA-9BR
GWA-15D
MW -31)
MW -9D
AB -213R
AB-7BRU
AS -3S
GWA-3BR
GWA-91)
GWA-15S
MW -3S
MW -9S
AB -21)
AB -7S
BG -IBR*
GWA-3BRU
GWA-9S
GWA-17S
MW -4D
MW -10D
AB -2S
AB-7SL
BG -1D*
GWA-3S
GWA-IOD
GWA-18D
MW -4S
MW -IID
AB-2SL
AB -81)
BG -IS
GWA-41)
GWA-IOS
GWA-18S
MW -5D
MW -IIS
AB -31)
AB -8S
BG-2BR*
GWA-4S
GWA-111)
GWA-19D
MW -5S
MW -12S
AB -3S
AB-9BR
BG -2D
GWA-513RU
GWA-IIS
GWA-19S
MW-6BR
MW -12D
AB-4BR
AB-9D(BRU?)
BG -2S
GWA-5S
GWA-12D(BRU?)
GWA-20D
MW -6D
MW -13D
AB-413RU
AB -9S
BG-3D(BRU?)
GWA-6BR
GWA-12S
GWA-20S
MW -6S
AB -4S
AB -101)
BG -3S
GWA-613RU
GWA-13D
GWA-22D
MW -71)
AB-4SL
AB -10S
GWA-1D
GWA-6S
GWA-13SR
MW -1S
MW -7S
AB-5BRU
AS -1D
GWA-1S
GWA-71)
GWA-14BR
MW -1D
MW-8BR
AB -5S*
AS -1S
GWA-2BR
GWA-7S
GWA-14D
MW -2S
MW -81)
Wells slated for installation/reinstallation that need to be added to monitoring plan once installed
GWA-16S (data gap well)
GWA-16D (data gap well)
*BG -1D (needs to be reinstalled due to water quality issues -grout contamination)
*BG -IBR (needs to be reinstalled due to water quality issues - grout contamination)
*BG-2BR (needs to be reinstalled due to water quality issues - grout contamination)
AB-4BRL (vertical delineation - proposed by Duke/HDR)
AB-10BR -4BRL (vertical delineation - proposed by Duke/HDR)
MW -I IBR (vertical delineation - proposed by Duke/HDR)
Surface Water Locations to be Sampled
SW -ABI
SW -AB -2
SW-AB3
SW-AB4
SW-AB7
SW -1
SW -2
Add the four proposed sampling locations (as communicated by Duke on 9/16/16) on the attached map.
Seep Locations to be Sampled
S-1
S-7
S-2
S-8
S-3
S-9
S-4
S-10
S-5
BSSWOOIAA
S-6

cu
L
Q
Ir 1
(C)
i
_ r
(C)
i
(C)

Cape Fear Steam Electric Plant Interim Monitoring Plan
Wells to be Sampled
ABMW-1
ABMW-4S
*CMW-5
MW-IOBRL
MW-16BR
MW-21SL
MW -9 PZ -7
ABMW-lBR
ABMW-5BR
CMW-6
MW -IOD
MW -16S
MW-21SU
MW-9BR PZ -8
ABMW-IS
ABMW-5S
CMW-7
MW -11
MW-17BR
MW-22BR
*PZ -1
ABMW-2SL
BGMW4
CMW-8
MW -12
MW-17SL
MW -22S
PZ -10
ABMW-2SU
BGTMW-4
CTMW-1
MW-12BR
MW-17SU
*MW-23BR
PZ -2
ABMW-3
CP -2
CTMW-2
MW -13
MW -18S
*MW -23D
PZ -3D
ABMW-3BR
CHATH-79-
P100
CTMW-7
MW -14
MW -19S
*MW -23S
PZ -3S
ABMW-3S
CMW-1
CTMW-8
MW-15BR
MW-20BR
MW-5BR
PZ -4
ABMW-3SR
CMW-2
MW -10
MW-15SL
MW -20S
MW-5BRR
PZ -5
ABMW-4
CMW-3
MW-IOBR
MW-15SU
MW-21BR
MW-6BR
PZ -6
*Notes:
• Piezometer "PZ -1" will be used as a piezometer, used to measure liquid pressure measuring water level height, only.
• "CMW-5" — DWR and Duke Energy agreed that this well has turbidity issues and is required to be replaced.
• An additional well set is also necessary east of the MW -23 well set. The siting location (shallow and intermediate) is
expected to be in the vicinity of the facility's property line. (The MW -23 well set is expected to continue to be monitored).
Surface Water and Seep Locations to be Sampled
SW -HAW
SW-DEEPR
SW -SBD -REF
SW-BAI
SW -BBI
SW-CFDG
SW-SHD-Plant,
SW-SHD56
SW-UNTA
S-1
S-6
Additional Surface Water and Seep Locations to be Sampled
Southeast side of 1985 Ash Basin - Approximate location latitude 35 35 13 and longitude 79 02 15 (DMS)
Branch A at crossing of Railroad spur

James E. Rogers Energy Complex Interim Monitoring Plan
Wells to be Sampled
AB -11)
AS -7S
GWA-23D
GWA-37D
MW -20D
MW -8S
CLP -2
AB -IS
BG -1D
GWA-24BR
GWA-37S
MW-20DR
U54D
GWA-21D
AB -2D
BG -1S
GWA-24D
GWA-38D
MW-21BR
U5 -1S
GWA-22D
AB -2S
BG -2D
GWA-24S
GWA-39S
MW -21D
U5-2BR
CLMW-5D
AB -3I
CCP-MW1D
GWA-25D
GWA-3D
MW-22BR
U5-21)
GWA-46S
AB -3S
CCP-MW1S
GWA-25S
GWA-42S
MW-22DR
U5 -2S -SL -A
GWA-47S
AB-3SL
CLMW-1
GWA-26S
GWA-43D
MW -23D
U5 -3D
GWA-13BRU
AB-4BR
CLMW-2
GWA-27D
GWA-43S
MW-23DR
U5 -3S -A
U5 -2S
AB -4D
CLMW-3D
GWA-27D-A
GWA-44BR
MW -23S
U54BR
AB -4S
CLMW-3S
GWA-28BR
GWA-44D
MW -24D
U54D
A13 4SL
CLMW-4
GWA-28BRU
GWA44S
MW-24DR
U54S
AB-5BR
CLMW-5S
GWA-28S
GWA-45D
MW-25DR
U5 -5D
AB-5BRU
CLMW-6
GWA-29D
GWA-45S
MW-2DA
U5-61)
AB -5S
GWA-11)
GWA-29S
GWA-47D
MW -30D
U5 -6S
AB-6BR
GWA-101)
GWA-213RU
GWA-48BR
MW -30S
U5 -7D
AB -6D
GWA-IOS
GWA-2S
GWA-4D
MW-32BR
U5 -7S
AB -6S
GWA-11BRU
GWA-30BR
GWA-4S
MW -32D
U5-7SL
AB-7BR
GWA-11S
GWA-30BRU
GWA-5BRU
MW -32S
U5-8BR
AS -113
GWA-12BRU
GWA-30S
GWA-5S
MW-34BRU
U5-81)
AS-1SB
GWA-12S
GWA-3IBR-A
GWA-61)
MW -34D
U5 -8S
AS -213
GWA-13BR
GWA-31D
GWA-6S
MW -34S
GWA-20BR
AS -2S
GWA-14D
GWA-32BR
IB -1D
MW-36BRU
GWA-27BR
AS-3BRU
GWA-14S
GWA-32D
IB -IS
MW -36S
GWA-2BR
AS -413
GWA-1BRU
GWA-33BR
IB-2S/SL
MW -38D
GWA-38S
AS4S
GWA-20D
GWA-33D
IB -3D
MW -38S
GWA-46B
AS-5BRU
GWA-20S
GWA-33S
IB -3S
MW-40BRU
GWA-48S
AS -5S
GWA-21BR
GWA-34S
IB4S/SL
MW -40S
MW -2D
AS -613
GWA-21BRU
GWA-35D
MW -IOD
MW -42D
MW -2D -A
AS -6S
GWA-21S
GWA-35S
MW -10S
MW -42S
MW-38BR
AS-7BRL
GWA-22BRU
GWA-36D
MW -11D
MW -41)
U5-5BR
AS -713
GWA-22S
GWA-36S
MW -11S
MW -8D
CLP -I
Well GWA-13BR —Missing from master spreadsheet. Please add with historical data.
Well GWA-20BR — Missing from master spreadsheet. Please add with historical data.
Well GWA-27BR — Missing from master spreadsheet. Please add with historical data.
Well GWA-2BR — Missing from master spreadsheet. Please add with historical data.
Well GWA-30BRU — Missing from master spreadsheet. Please add with historical data.
Well GWA-38S — Missing from master spreadsheet. Please add with historical data.
Well GWA-46B — Missing from master spreadsheet. Please add with historical data.
Well GWA-48BR — Missing from master spreadsheet. Please add with historical data.
Well GWA-48S — Missing from master spreadsheet. Please add with historical data.
Well IB -2S -SL — Missing from master spreadsheet. Please add with historical data.
Well IB -4S -SL — Missing from master spreadsheet. Please add with historical data.
Well MW -21) — Missing from master spreadsheet. Please add with historical data.
Well MW -2D -A — Missing from master spreadsheet. Please add with historical data.
Well MW-38BR — Missing from master spreadsheet. Please add with historical data.
Well U5-5BR — Missing from master spreadsheet. Please add with historical data.
Well GWA-29S — Missing from master spreadsheet. Please add with historical data.
Well CLP -1 —Missing from master spreadsheet. Please add with historical data.
Well CLP -2 — Missing from master spreadsheet. Please add with historical data.
Well GWA-21D — Missing from master spreadsheet. Please add with historical data.
Pagel of 2

James E. Rogers Energy Complex Interim Monitoring Plan
Well GWA-22D — Missing from master spreadsheet. Please add with historical data.
Well CLMW-5D — Missing from master spreadsheet. Please add with historical data.
Well MW-23BR—Missing from master spreadsheet. Please add with historical data.
Well GWA46S —Missing from master spreadsheet. Please add with historical data.
Well GWA47S — Missing from master spreadsheet. Please add with historical data.
Well GWA-13BRU - Missing from master spreadsheet. Please add with historical data.
Well GWA-29S — Missing from master spreadsheet. Please add with historical data.
Well U5 -2S — Missing from master spreadsheet. Please add with historical data.
Well GWA-11) — Missing from master spreadsheet. Please add with historical data.
Surface Water Locations to be Sampled
SW -2
SW -3
SW -4
SW -8
SW -9
SW-l0A
SW -1013
SW -10C
Seep Locations to be Sampled
S-1
S-13
S-24
CLFSP058
S-2
S-14
S-26
CLFSP059
S-3
S-15
S-27
CLFSP061
S-4
S-16
S-28
CLFTDO04
S-5
S-17
S-29
CLFTDO05
S-6
S-18
S-30
CLFTDO52
S-7
S-19
S-31
CLFSTRO53
S-8
S -19A
S-32
CLFSP060
S-9
S-20
S-34
CLFSTR064
S-10
S-21
CLFWW57
CLFSTR065
S -I1
S-22
CLFSD063
SW -I
S-12
S-23
CLFSP051
Page 2 of

Dan River Combined Cycle Steam Station Interim Monitorint= Plan
Wells to be Sampled
AB -IOD
AB-35BR
BG -1D
GWA-16S
GWA-6S
MW -11
MW -23D MW -9D
AB-1OS
AB -5D
BG -5D
GWA-17D
GWA-7D
MW -11D
MW-308BR OW -308D
AB-10SL
AB -5S
BG -5S
GWA-18D
GWA-7S
MW -12
MW-310BR OW -310D
A13 -15S
AS -12S
GWA-IOD
GWA-20D
GWA-8BR
MW -12D
MW-311BR
AB-25BR
AS -2D
GWA-12D
GWA-20S
GWA-8D
MW -21D
MW-314BR
AB -25D
AS-8BR
GWA-12S
GWA-4D
GWA-8S
MW -21S
MW-315BR
AB -25S
AS -8D
GWA-14D
GWA-4S
GWA-9D
MW-22BR
MW-317BR
AB-30BR
BG-IOBR
GWA-14S
GWA-5BR
GWA-9S
MW -22D
MW-317BRL
AB -30D
BG -IOD
GWA-15D
GWA-SBRD
MW -10
MW -22S
MW -318D
AB -30S
BG-IOS
GWA-16D
GWA-6D
MW -10D
MW-23BR
MW -9
Surface Water Locations to be Sampled
SW -1
SW -2
SW -4
SW -5
SW -6
SW -7
SW -8
SW -9
SW -10
SW -11
SW -13
SW Dan River at Well cluster MW -
Seep Locations to be Sampled
S-1

H. F. Lee Energy Complex Interim Monitoring Plan
Wells to be Sampled
ABMW-1
AMW-14S
BGMW-9
CW -2
IABMW-3S
LLMW-2
AMW-18BC
ABMW-1S
AMW-15BC
BW -1
CW -3
IMW-IBC
LLMW-2S
IMW-04BC
AMW-TIBC
AMW-15S
CCR -1005
CW -4
IMW-1S
LLMW-3
IMW-05BC
AMW-11S
AMW-16BC
CMW-10
DMW-1
IMW-2BC
MW -1
AMW-12BC
AMW-17S
CMW-5
DMW-2
IMW-3BC
MW -2
AMW-12S
AMW-18S
CMW-6R
DMW-3
IMW-3S
MW -3
AMW-13BC
AMW-4BC
CMW-7
IABMW-1
IMW-4S
SMW-3
AMW-13S
AMW-6RBC
CMW-8
IABMW-1S
IMW-5S
SMW-4
AMW-13S
AMW-9BC
CTMW-1
IABMW-2S
LLMW-1
SMW-5
AMW-14BC
BGMW-10
CW -1
IABMW-3
LLMW-IS
AMW-17BC
Surface Water and Seep Locations to be Sampled
ASW -BG
S-03
S -03A
S-5
S-10
S-20
S-14
S-15
S-16
ISW-HMBREF

Marshall Steam Station Interim Monitoring Plan
Wells to be Sampled
AL -1S
AB -4D
AB -11S
AB -18S
GWA-2D*
GWA-11D
MW -IOD
OB -1 (Dry Ash Basin)
AL -11)
AB -5S
AB -111)
AB -18D
GWA-3S
GWA-12S
MW -11S
OB -1 (DryAsh LF)
AL -2S
AB -5D
AB -12S
AB -20S
GWA-3D
GWA-12D
MW -11D
MW -1
AL -21)
AB-5BR
AB-12SL
AB -20D
GWA-4S
GWA-12BR
MW -12S
MW -2
AL-2BR
AB -6S
AB -12D
AB -21S
GWA-41D
GWA-13S
MW -12D
MW -3
AL -3S
AB -6D
AB -13S
AB -21D
GWA-5S
GWA-13D
MW -13S
MW -5
AL -3D
AB-6BR
AB -13D
BG -1S
GWA-5D
MW -4
MW -13D
MW -7
AL -41)
AB -7S
AB -14S
BG -1D
GWA-6S
MW -4D
MW -14S
AB -1S
AB -7D
AB -14D
BG -2S
GWA-6D
MW -6S
MW -14D
AB -11)
AB -8S
AB -15S
BG-2BR
GWA-7S
MW -6D
MW-14BR
AB -IBR
AB -81)
AB-15SL
BG -3S
GWA-7D
MW -7S
MS -8
AB -2S
AB -9S
AB -15D
BG -3D
GWA-8S
MW -7D
MS -10
AB -2D
AB -9D
AB-15BR
BG-3BR
GWA-8D
MW -8S
MS -11
AB -3S
AB-9BR
AB -16S
GWAAS
GWA-9BR
MW -8D
MS -12
AB -31)
AB-IOS
AB -16D
GWA-ID
GWA-IOS
MW -9S
MS -14
AB -4S
AB -IDSL
AB -17S
GW -MR
GWA-IOD
MW -9D
MS -15
AB-4SL
AB -IOD
AB -17D
GWA-2S
GWA-11S
MW-lOS
MS -16
Wells slated for installation/reinstallation that need to be added to monitoring plan once installed:
GWA-14S (data gap well - will be installed once property access is granted)
GWA-14D (data gap well - will be installed once property access is granted)
*GWA-2D (needs to be reinstalled due to water quality issues - grout contamination)
AB-6BR (needs to be reinstalled due to water quality issues - grout contamination)
AB-IOBR (vertical delineation - proposed by Duke/IIDR)
AB-12BR (vertical delineation - proposed by Duke/HDR)
AL-lBR (vertical delineation - proposed by Duke/HDR)
AL-2BRL (vertical delineation - proposed by Duke/HDR)
AL-3BR (vertical delineation - proposed by Duke/HDR)
AL-4BR (vertical delineation - proposed by Duke/IIDR)
Surface Water Locations to be Sampled
SW -1
SW -3
SW -4
SW -5
SW -7
SW -8
SW -9
SW -10
SW -11

Mayo Steam Electric Plant Interim Monitoring Plan
Wells to be Sampled
ABMW-1
ABMW-3S
BG -2
CW -3
MW-11BR
MW-15BR
MW -3 MW -71)
ABMW-2
ABMW-4
CW -1
CW4
MW -12D
MW-16BR
MW-3BR MW-8BR
ABMW-2BR
ABMW-4BR
CW -11)
CW -5
MW -12S
MW -16D
MW -4 *MW-9BR
ABMW-2BRL
ABMW-4D
CW -2
CW -6
MW-13BR
MW -16S
MW-5BR
ABMW-3
BG -1
CW -2D
MW-IOBR
MW-14BR
MW -2
MW-7BR
*Note:
• MW-9BR has turbidity issues and is to be replaced.
• MW-9BR will be retained as a piezometer used to measure liquid pressure measuring water level height, only.
Surface Water and Seep Locations to be Sampled
SW -REFI
SW-CB2
S W -CBT 1

Riverbend Steam Station Interim Monitoring Plan
Wells to be Sampled
AB -1D
AB -81)
BG -4D
GWA-15S
GWA-23S
GWA-7S
MW -2D MW-9BR
AB -IS
AB -8S
BG -4S
GWA-15D
GWA-2BR
GWA-81)
MW-2S/MW-2S-A MW -9D
AB -2D
AS -ID
BG-5BR
GWA-1BRU
GWA-2BRU
GWA-8S
MW -31)
AB -2S
AS -1S
BG -5D
GWA-ID
GWA-2S
GWA-9BR
MW -3S
AB-3BR
AS -2D
C-1BRU
GWA-1S
GWA-3BR
GWA-9D
MW4D
AB -3D
AS -2S
C -IS
GWA-20BR
GWA-31)
GWA-9S
MW -4S
AB -3S
AS -31)
C -2D
GWA-20D
GWA-3SA
MW -10
MW -51)
AB -41)
AS -3S
C -2S
GWA-20S
GWA-3S-A
MW-11DR
MW -5S
AB -4S
AS-3SA
GWA-10BRU
GWA-21BR
GWA-4BR
MW-I1SR
MW -6D
AB -513
BG -1D
GWA-IOD
GWA-21D
GWA4D
MW -12
MW -6S
AB -5S
BG -1S
GWA-IOS
GWA-21S
GWA4S
MW -13
MW-7BR
AB-5SL
BG-2BR
GWA-11D
GWA-22BR
GWA-51)
MW 14
9W -7D
AB-6BRU
BG -2D
GWA-IIS
GWA-22BR-A
GWA-5S
MW -15
MW-7SR
AB -6S
BG -2S
GWA-12D
GWA-22D
GWA-6D
MW-15BR
MW -81)
AB -71)
BG -3D
GWA-12S
GWA-22S
GWA-6S
MW -15D
MW -8I
AB -7I
BG -3S
GWA-14D
GWA-23BR
GWA-7BR
MW -11)
MW -8S
AB -7S
BG-4BR
GWA-14S
GWA-23D
GWA-71)
MW -1S
MW -9
Surface Water Locations to be Sampled
RBSW002
SW -3
In addition, WSRO suggests the Catawba River to be sampled at three locations: near S -1&S-2, S-4/GWA-10,
and 5-10 to 5-12.

Roxboro Steam Electric Plant Interim Monitoring Plan
Well Locations to be Sampled
ABMW-1
ABMW-5
CW -1
GMW-6
MW-14BR
MW -2
MW-2BR MW-8BR
ABMW-lBR
ABMW-5D
CW -2
GMW-7
MW-15BR
MW-20BRL
MW-3BR MW-9BR
ABMW-2
ABMW-6
CW -2D
GMW-8
MW -15D
MW-21BRL
MW-4BR
ABMW-2BR
ABMW-6BR
CW -3
GMW-9
MW-16BR
MW-22BR
MW4BRL
ABMW-3
ABMW-7
CW -313
MW -1
MW-17BR
4W -22D
MW-5BR
ABMW-3BR
ABMW-7BR
CW4
MW-IOBR
MW-18BR
*MW-23BR
MW -513
ABMW-3BRL
ABMW-7BRL
CW -5
MW-llBR
MW -18D
MW-24BR
MW-6BR
ABMW-4
BG -1
GMW-10
MW-12BR
MW-19BRL
MW-25BR
MW -6D
ABMW4BR
BG-lBR
GMW-I1
MW-13BR
*MW-IBRL
MW-26BR
MW-7BR
Note:
• For wells MW-1BRL and MW-23BR it was agreed that the wells have pH and/or turbidity issues and would be required
to be replaced. (If these wells do not stabilize with pH or turbidity within acceptable ranges, the data from them may not
be used for statistical analyses and they may need to be replaced.)
• Well MW-22BRL will be retained as a piezometer, used to measure liquid pressure measuring water level height, only.
Surface Water and Seep Locations to be Sampled
SW -01
SW -02
SW -03
S-14

L. V. Sutton Energv Complex interim Monitoring Plan
Wells to be Sampled
MW -2C
MW -13D
MW -23E
MW-37CD
MW -39C
SMW-3C
AW -2D
AW -7D
MW -05C
MW -14
MW -27C
MW -37D
MW -39D
SMW4C
AW -3C
AW -8C
MW-05CD
MW -16
MW -31C
MW -37E
MW40B
SMW-5C
AW -4C
AW -9C
MW -05D
MW -16D
MW -35C
MW -38B
MW40C
SMW-6C
AW -5C
AW -9D
MW -05E
MW -20
MW -36C
MW -38C
MW40D
SMW-6D
AW -5D
MW -6C
MW -20D
MW -37B
MW -38D
SMW-1C
AW -1C
AW -6D
MW -12
MW -23D
MW -37C
MW -39B
SMW-2C
AW -2C
AW -6E
Surface Water and Seep Locations to be Sampled
SW -OIC
SW -004

W. H. Weathersuoon Power Plant Interim Monitoring Plan
Wells to be Sampled
ABMW-01
AW -03D
BW -03D
MW -01
MW -08D
MW -41I
MW -52 PZ -01
AW -01D
AW -03I
BW -03I
MW -02
MW -08I
MW44D
MW -53D PZ -02
AW -01I
AW -03S
BW -03S
MW -03
MW -08S (OW -8)
MW44I
MW -53I PZ -03
AW-OIS
BW -01
CCR -101 -BG CAMA
MW -04
MW -33D
MW -44S
MW -54D
AW -02D
BW -02D
CW -01
MW -05
MW -331
MW-44SA
MW -55D
AW -02I
BW -02I
CW -02
MW -06
MW -33S
MW -49D
MW -55I
AW -02S
BW -02S
CW -03
MW -07
MW41D
MW -49I
PW -1 (DEP 2)
Surface Water and Seep Locations to be Sampled
5-15
5-16
S-17
5-20