IMP 1st Quarter 2018 FINAL_20171220

Water Resources
Environmental Quality
December 20, 2017
Paul Draovitch
Senior Vice President
Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
Subject: Revised Interim Monitoring Plans for 14 Duke Energy Facilities
1St Quarter 2018
Dear Mr. Draovitch:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
The North Carolina Department of Environmental Quality (DEQ) is providing the attached revised
Interim Monitoring Plans (IMPS) for the respective coal ash facilities. Per our agreement, the DEQ
will be providing Duke Energy with updated IMPS quarterly until the individual facility Corrective
Action Plans are approved. Also, per our agreement, Duke Energy will include and begin sampling
any newly installed groundwater assessment wells as part of the facility IMP and the DEQ will
formally include it in the subsequent updated quarterly IMP.
The attached IMPS only contain references to groundwater monitoring locations. Sampling at
surface water locations that were identified as part of the May 1, 2017 communication from DEQ
to Duke Energy regarding revised IMPS at the facilities is expected to continue pending further
notice. DEQ may elect to provide Duke Energy with additional surface sampling locations to
incorporate into the revised IMPS at a future time. For clarification, we have also provided the
minimum expected groundwater sampling analyte list.
The attached revised facility IMPS shall be conducted on a quarterly basis commencing the fourth
quarter of calendar year 2017 pursuant to 15A NCAC 02L .0110, until Corrective Action Plans
are accepted for the individual facilities or as directed otherwise by the 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. If sampling an individual groundwater location is
problematic, please call the Regional Office that manages the facility to discuss issues. Any
changes to IMPs and sampling requirements must be discussed with the respective Regional
Offices and coordinated by official correspondence from the DEQ Central Office.
Since Duke Energy will submit updated Comprehensive Site Assessments in the near future, the
requirement for an annual monitoring report submitted by April 30th for each respective coal
,�->`Nothings Compares.'-,,
State of North Carolina I Environmental Quality I Division of Water Resources
Water Quality Regional operations Section
1636 Mail Service Center I Raleigh, North Carolina 27699-1636
919-707-9129

facility as set forth in the May 1, 2017 letter will be extended to a date in 2018 that will be later
defined.
In order to optimize the groundwater monitoring at each facility, DEQ will be removing the
groundwater monitoring condition from the NPDES permits as they are reissued. Duke Energy
shall continue to monitor the compliance wells separately under the individual NPDES permits
until the NPDES permits are reissued with no groundwater monitoring condition. At that time,
the compliance wells shall continue to be monitored per the attached revised 1MPs under the
authority of 15A NCAC 02L .0110.
The DEQ is open to consider further optimization of the IMPS 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,
4S.ZZerman, P.G.
Division of Water Resources
Attachments: Revised Interim Monitoring Plans for the 14 coal ash facilities
cc: WQROS Regional Offices
WQROS Central File Copy

Revised Allen Steam Station Interim Monitoring Plan — Groundwater On1Y
Sample for
Wells to be Sampled Radionuclides Regional Office Notes
(X)
AB -10D
AB -10S
AB -11D
X
AB -12D
AB -12S
AB -13D
X
AB -13S
X
AB-14BR
AB -14D
AB -1R
AB -2
AB -20D
AB -20S
AB -21 BRL
X
AB -21D
Sample to be analyzed for total boron and sulfate
only.
AB -21 S
X
AB -21 SL
X
AB-22BRL
AB-22BR
AB -22D
AB -22S
AB-23BRU
Sample to be analyzed for total boron and sulfate
only.
AB -23S
AB-24BR
AB -24D
Sample to be analyzed for total boron and sulfate
only.
AB -24S
AB-24SL
AB-25BR
Sample to be analyzed for total boron and sulfate
only.
AB-25BRU
Sample to be analyzed for total boron and sulfate
only.
AB -25S
X
AB -25 SL
X
AB -26D
AB -26S
AB-27BR
AB -27D
Allen Steam Station Pagel of 5 December 20, 2017

Wells to be Sampled
I Sample for
I Radionuclides I Regional Office Notes
X)
AB -27S
AB -28D
AB -28S
AB -29D
AB -29S
AB-29SL
AB -2D
AB -30D
AB -30S
AB -31 S
AB -32D
AB -32S
AB -33D
X
AB -33S
X
AB -34D
AB -34S
AB-35BR
X
AB -35D
Sample to be analyzed for total boron and sulfate
only.
AB -35S
X
AB -36D
AB -36S
AB -37D
AB -37S
AB-38BR
AB -38D
AB -38S
AB -39D
AB -39S
AB-4BR
X
AB -4D
X
AB -4S
X
AB -5
AB -6A
X
AB -6R
X
AB -9D
X
AB -9S
X
BG -IDA
X
Note: BG -1 D has been abandoned and thus
removed from the IMP. BG -IDA was installed as
replacement well.
BG -1 S
X
Allen Steam Station Page 2 of 5 December 20, 2017

Sample for
Wells to be Sampled Radionuclides
{7i
Regional Office Notes
BG-2BRA
X
Note: BG-2BR has been abandoned and thus
removed from the IMP. BG-2BRA was installed as
replacement well.
BG -2D
X
BG -2S
X
BG -3D
BG -3S
B G-4BR
BG -4D
BG -4S
GWA-14DA
Note: GWA-1.41) has been abandoned and thus
removed from the IMP. GWA-14DA was installed
as replacement well.
GWA-14S
GWA-15D
GWA-15S
GWA-16D
GWA-16S
GWA-17D
X
GWA-17S
X
GWA-18D
GWA-18S
GWA-19D
Sample to be analyzed for total boron and sulfate
only.
GWA-19S
GWA-IBR
X
GWA-1D
X
GWA-I S
X
GWA-21 BR
X
GWA-21 DA
X
Note: GWA-21D has been abandoned and thus
removed from, the IMP. GWA-21DA was installed
as Keplacement well.
GWA-21 S
X
GWA-22D
GWA-22S
GWA-23D
Sample to be analyzed for total boron and sulfate
only.
GWA-23S
GWA-24BR
GWA-24D
GWA-24SA
Note: GWA-24S has been abandoned and thus
removed from the IMP. GWA-24SA was installed
as replacement well.
Allen Steam Station Page 3 of 5 December 20, 2017

Wells to be Sampled
Sample for
Radionuclides i Regional Office Notes
(X).
GWA-26D
GWA-26S
GWA-2D
X
GWA-2S
X
GWA-3BRA
X
Note: GWA-3BR has been abandoned and thus
removed from the IMP. GWA-3BRA was installed
as replacement well.
GWA-3D
X
GWA-3 S
X
GWA4BRA
X
Note: GWA-4BR has been abandoned and thus
removed from the IMP. GWA-OBRA was installed
as replacement well.
GWA-4D
X
GWA-4S
X
GWA-SBRA
X
Note: GWA-513R has been abandoned and thus
removed from the IMP. GWA-SBRA was installed
as replacement well.
GWA-5D
X
GWA-5S
X
GWA-6BRA
X
Note: GWA-6BR has been abandoned and thus
removed from the IMP. GWA-6BRA was installed
as replacement well.
GWA-6DA
X
GWA-6S
X
GWA-7D
X
GWA-7S
X
GWA-8D
GWA-SS
GWA-9D
X
GWA-9S
X
GWA-9BR
X
Allen Steam Station Page 4 of 5 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Allen Steam Station Page 5 of 5 December 20, 2017

Revised Asheville Stearn Electric Plant Interim Monitoring Plan Groundwater Only
Wells to be
Sampled
Sample for
Radionuclides
M
Regional Office Notes
ABMW-1 IBR
AMW-03B
X
AMW-1B
X
AMW-2A
AMW-2B
water level only
APZ-30
water level only
B-1
water level only
B -1-A
water level only
B-2
water level only
CB -1
X
CB -IBR
water level only
CB -1 BRL
water level only
CB -ID
X
CB -SBR
X
CB -81)
water level only
CB -913R
X
CB-9SL
X
GW-lBR
GW -1D
GW -2
X
GW -3
X
GW -4
X
GW -5
X
MW -3D
X
MW-5BR
MW -5D
MW -8S
X
MW -10
X
MW -11
MW -11D
MW-13BR
MW -13D
MW-14BR
MW -15A
X
MW-15BR
water level only
MW -15D
X
MW -16A
X
Asheville Steam Electric Plant Page 1 of 3 December 20, 2017

MW-16BR
X
MW -17A
X
MW-18BR
X
MW-18BRL
X
MW -18D
X
MW-19BR
water level only
MW -20A
MW -21D
X
MW-22BR
X
MW -22D
X
MW-23BR
MW-23DL
MW-23DU
MW -24S
X
MW-6BR
X
MW -6D
X
MW -6S
X
MW-7BR
water level only
MW-8BR
MW-9BR
X
MW -9D
X
MW -9S
X
P-102
water level only
P-103
PZ -16
Needs to be replaced and added to IMP.
PZ -17D
X
PZ -17S
X
PZ -19
X
PZ -22
X
Asheville Steam Electric Plant Page 2 of 3 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
—Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Asheville Steam Electric Plant Page 3 of 3 December 20, 2017

Revised Belews Creek Steam Station Interim Monitoring Plan -- Groundwater Dnl
Wells to be
Sampled
Sample for
Radionuclides
X
Regional Office Notes
A]13 -IBR
AB -1D
AB -1 S
AB -2D
AB -2S
AB -3D
AB -3S
AB-4BR
Measure pH, if still high, do not sample
AB-4BRD
AB -4D
AB -4S
AB-4SL
Measure pH, if still high, do not sample
AB -5D
AB -5S
AB -5 SL
AB -6D
AB -6S
AB-6SL
AB -7D
AB -7S
AB -8D
AB -8S
AB-8SL
AB -913R
AB-913RD
Measure pH. If pH is still high, do not sample.
AB -9D
AB -9S
BG -1D
BG -I S
X
Dry 7119/17; continue monitoring
BG-2BRA
Replaced BG-2BR
BG -2D
X
BG -2S
X
BG -3D
BG -3S
GWA-10DA
GWA-10S
GWA-11D
Belews Creek Steam Station Page 1 of 4 December 20, 2017

GWA-11S
GWA-12BR
GWA-12D
GWA-12S
GWA-16BR
Measure pH. If pH is still high, do not sample.
GWA-16DA
GWA-16S
GWA-17D
GWA-17S
GWA-181)
GWA-18SA
GWA-19BR
GWA-19D
GWA-19SA
GWA-1 BR
X
Measure pH. If pH is still high, do not sample.
GWA-1D
X
GWA-1 S
X
GWA-20BR
GWA-20D
GWA-20SA
GWA-21 D
GWA-21 S
GWA-22D
GWA-22S
GWA-23D
GWA-23S
GWA-24BR
GWA-24D
X
GWA-24S
X
Insufficient Volume 7/21/17; continue monitoring
GWA-25BR
X
GWA-26BR
X
GWA-26D
X
GWA-26S
X
GWA-27BR
GWA-27D
GWA-27S
GWA-2D
GWA-2S
GWA-30D
X
Measure pH. If pH is still high, do not sample.
GWA-30S
X
GWA-31D
Belews Creek Steam Station Page 2 of 4 December 20, 2017

GWA-31 S
GWA-32D
GWA-32S
GWA-3D
GWA-3S
Insufficient Volume 7121117; continue monitoring
GWA-6D
X
GWA-6S
X
GWA-7D
X
GWA-7SA
X
GWA-8D
X
GWA-8S
X
GWA-9BR
GWA-9D
GWA-9S
MW-104BR
Measure pH. If pH is still high, do not sample.
MW -104D
MW -1045
MW-200BR
X
MW -200D
X
MW -200S
X
MW-201BR
MW -201D
MW-202BR
MW -202D
MW -2025
MW-203BR
MW -203D
MW -203S
MW -204D
MW -204S
MW -3
X
Belews Creek Steam Station Page 3 of 4 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium,
Alkalinity
Cadmium
Hexavalent
HexavalentMolybdenum
Sodium
Total Organic
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
'Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Belews Creek Steam Station Page 4 of 4 December 20, 2017

Revised Buck Combined Cycle Station Interim Monitoring Plan — Groundwater Only
Wells to be
Sampled
Sample for
Radionuclides Regional Office Notes
M
AB -1D
AB-10BR
AB-10BRL
AB -10D
AB -10S
AB-2BR
Sample to be analyzed for total boron and sulfate
only.
AB -2D
X
AB -2S
X
AB-2SL
X
AB -3D
AB -3S
AB-4BRL
AB-4BRU
AB -4S
AB-4SL
AB-SBRU
X
AB -55
X
AB -5 SL
X
AB-6BRU
AB-7BRU
AB -7S
AB-8BRU
AB -8S
AB-9BRA
X
Note: AB-9BR has been abandoned and thus removed
from the IMP. AB-913RA was installed as
replacement well.
AB-9BRUA
X
Note: AB-9BRU has been abandoned and thus
removed from the IMP. AB-9BRUA was installed as
replacement well.
AB -9S
X
AS -1D
AS -1S
AS -2D
AS -3D
AS -3S
BG-1BRA
Note: BG -IBR has been abandoned and thus removed
from the IMP, BG-1BRA was installed as
replacement well.
Buck Combined Cycle Station Page 1 of 4 December 20, 2017

Wells to be
Sampled
Sample for
Radionuclides Regional Office Notes
BG-1S
BG-2D
X
BG-2S
X
BG-3BRU
X
BG-3S
X
GWA-10D
GWA-10S
GWA-11D
GWA-I 1 S
GWA-12BRU
X
GWA-12S
X
GWA-13D
GWA-13SR
GWA-14BR
X
GWA-14D
Sample to be analyzed for total boron and sulfate
only.
GWA-14S
X
GWA-15BR
X
GWA-15D
X
GWA-15S
X
GWA-16BR
X
GWA-16D
X
GWA-16S
X
GWA-17S
GWA-18DA
X
Note: GWA-18D has been abandoned and thus
removed from the IMP. GWA-18DA was installed as
replacement well.
GWA-18S
X
GWA-19D
X
GWA-19S
X
GWA-1 D
X
GWA-1 S
X
GWA-20D
X
GWA-20S
X
GWA-22D
X
GWA-213RA
X
Note: GWA-2BR has been abandoned and thus
removed from the IMP. GWA-213RA was installed as
replacement well.
GWA-2BRU
X
GWA-2S
X
GWA-3BR
X
Buck Combined Cycle Station Page 2 of 4 December 20, 2017

Wells to be Sample for
Sampled Radionuclides Regional Office Notes
X)
GWA-3BRU
X
GWA-3S
X
GWA-4D
X
GWA-4S
X
GWA-SBRU
X
GWA-5S
X
GWA-6BR
X
GWA-6BRL
X
GWA-6BRU
X
GWA-6S
X
GWA-7D
X
GWA-7S
X
GWA-8D
GWA-9BRA
X
Note: GWA-9BR has been abandoned and thus
removed from the IMP. GWA-9BRA was installed as
replacement well.
GWA-9D
X
GWA-9S
X
MW -101)
MW -1 IBR
X
MW-11BRL
X
MW -1 ID
X
MW -11S
X
MW -12D
MW -12S
MW -13D
MW -1D
MW -IS
MW -3D
X
MW -3S
X
MW -4D
MW -4S
MW -5D
MW -5S
MW-6BR
X
MW -6D
X
MW -6S
X
MW -7D
MW -7S
Buck Combined Cycle Station Page 3 of 4 December 20, 2017

Wells to be
Sample for
Cop -per
Sampled
Radionuclides
Regional Office Notes
Alkalinity
(X)
Hexavalent
Molybdenum
Sodium
Note: MW-8BR has been abandoned and thus
MW-SBRA
X
removed from the IMP. MW-8BRA was installed as
-replacement well.
MW -8D
X
MW -8S
X
Total
MW -9D
X
Iron
MW -9S
X
Combined
Minimum Parameters to be Analyzed
Aluminum
Boron
Cop -per
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Buck Combined Cycle Station Page 4 of 4 December 20, 2017

Revised Ca e Fear Steam Electric Plant Interim Monitoring Plan — Groundwater Onl
Wells to be
Sampled
Sample for
Radionuclides
X
Regional Office Notes
ABMW-1
X
ABMW-IBR
X
ABMW-I S
X
ABMW-2SL
ABMW-2SU
ABMW-3
X
ABMW-3BR
ABMW-3SR
X
ABMW-4
X
ABMW-4S
X
ABMW-5BR
ABMW-5S
BGMW-4
X
BGTMW-4
X
CMW-01
X
CMW-02
CMW-03
X
CMW-5R
Installed 7119117
CMW-06
X
CMW-07
X
CMW-08
X
CTMW-01
X
CTMW-02
CTMW-07
CTMW-08
X
MW -10
X
MW-IOBR
X
MW-10BRL
MW -10D
MW -1I
X
MW -12
X
MW-12BR
MW -13
MW-15BR
X
MW-15SL
X
MW-15SU
X
MW-16BR
X
Cape Fear Steam Electric Plant Page 1 of 3 December 20, 2017

MW -16S
X
MW-17BR
MW-17SL
X
MW-17SU
X
MW -18S
X
MW -19S
MW-20BR
MW -20S
MW -21 BR
MW -21 SL
X
MW -21 SU
X
MW-22BR
MW -22S
MW-23BR
MW -23D
X
MW -23S
X
MW-24BR
X
Duke indicated in email sent 9-18-17 this well
location is designated MW-24BR
MW -24S
X
MW-5BRR
MW-6BR
X
MW -9
X
MW-9BR
X
PZ -1
PZ -10
PZ -2
PZ -3D
PZ -3S
PZ -4
PZ -5
X
PZ -6
PZ -7
PZ -8
Cape Fear Steam Electric Plant Page 2 of 3 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Cape Fear Steam Electric Plant ' Page 3 of 3 December 20, 2017

Revised James E. Rogers Energy Complex Interim Monitoring Plan — Grou,ndwater Only
Wells to be
Sampled
Sample for
Radionuclides
M
Regional Office Notes
AB -1D
AB -IS
AB -2D
AB -2S
AB-3BR
AB -3I
AB -3S
X
AB-3SL
X
AB-4BR
AB -4D
AB -4S
X
AB-4SL
X
AB-5BR
AB-5BRU
AB -5S
X
AB-6BR
AB -6D
AB -6S
X
AS -1D
AS -1 SB
AS -213R
AS -2D
X
AS -2S
X
AS-3BRU
AS -4D
AS -4S
AS-5BRU
AS -5S
AS -6D
AS -6S
AS -7D
AS -7S
X
BG -1D
X
BG -1S
X
BG -2D
X
CCPMW-lD
X
CCPMW-1 S
X
James E. Rogers Energy Complex , Page 1 of 5 December 20, 2017

CLMW-1
X
CLMW-2
CLMW-3D
X
CLMW-3 S
X
CLMW-5D
CLMW-5S
CLMW-6
CLP-1
water level only
CLP-2
water level only
GWA-10D
GWA-lOS
GWA-11BRU
X
GWA-11 S
X
GWA-12BRU
GWA-12S
GWA-13BR
GWA-14BR
GWA-14D
GWA-14S
GWA-1BRU
GWA-20BR
X
GWA-20D
X
GWA-20S
X
GWA-21 BR
X
GWA-21BRU
X
GWA-21D
GWA-21 S
X
GWA-22D
GWA-22S
X
GWA-23D
GWA-24BR
GWA-24D
GWA-24S
GWA-25S
GWA-25D
water level only
GWA-26S
GWA-26D
water level only
GWA-27BR
X
GWA-27D-A
X
GWA-28BR
GWA-28BRU
James E. Rogers Energy Complex Page 2 of 5 December 20, 2017

GWA-28S
GWA-29D
X
GWA-2BR
X
GWA-2BRU
X
GWA-2S
X
GWA-30BR
GWA-30BRU
water level only
GWA-30S
GWA-31 BR-A
GWA-31 D
GWA-32D
GWA-32BR
water level only
GWA-33BR
GWA-33D
GWA-33S
GWA-34S
GWA-35D
GWA-35S
GWA-36D
X
GWA-36S
X
GWA-37D
GWA-37S
GWA-38D
GWA-38S
GWA-39S
water level only
GWA-3D
X
GWA-40S
water level only
GWA-42S
water level only
GWA-43D
GWA-43S
GWA-44BR
GWA-44D
GWA-44S
GWA-45D
GWA-45S
GWA-46D
GWA-47D
GWA-48BR
GWA-48S
G WA-4D
X
GWA-4S
X
James E. Rogers Energy Complex Page 3 of 5 December 20, 2017

GWA-SBRU
GWA-5S
GWA-6S
GWA-61)
water level only
IB -3D
1B -3S
X
MW -IOD
MW -10S
MW -IID
MW -lis
X
MW -20D
MW-20DR
MW-21BR
MW -21D
MW-22BR
MW-22DR
MW -23D
MW-23DR
MW -23S
MW -24D
X
MW-24DR
X
MW-25DR
MW -2D -A
MW -30D
X
MW -30S
X
MW-32BR
X
MW -32D
X
MW -32S
X
MW -34S
MW-34BRU
MW-36BRU
MW -36S
MW-38BR
X
MW -38D
X
MW -38S
X
MW-40BRU
MW -40S
MW -42D
MW -42S
MW -8D
MW -8S
X
James E. Rogers Energy Complex Page 4 of 5 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum Boron Co er
Alkalinity Cadmium Hexavalent
Chromium
Antimony Calcium Iron
Arsenic Chloride
Barium
Chromium
Beryllium
Cobalt
Lead
Manganese
Merc Selenium
Molybdenum
Sodium
Nickel
Strontium
Potassium
Radium 226
Radium 228
Sulfate
Sulfide
Total
Dissolved
Solids
Thallium
Total Organic
Carbon
Total
Combined
Uranium
Total
Suspended
Solids
Vanadium
Zinc
James E. Rogers Energy Complex Page 5 of 5
December 20, 2017

Revised Dan River Combined Cycle Station Interim Monitorin Plan — Groundwater Onl
Dan River Combined Cycle Station Page 1 of 2 December 20, 2017
Sample for
Wells to be Sampled
Radionuclides Regional Office Notes
X
AB-30BR
AB -30D
AB -30S
AB-35BR
AB -5D
AB -5S
AS -12S
AS-8BR
AS -8D
BG -IDA
X Insufficient volume 8/24/17; continue motoring
BG -101)
X
BG -10S
X
BG -1013R.
X
BG -5D
BG -5S
GWA-10D
GWA-12D
GWA-I2S
GWA-14D
GWA-14S
GWA-15D
GWA-16D
GWA-16S
GWA-17D
GWA-20D
GWA-20S
GWA-4D
GWAAS
GWA-5BR
GWA-5BRD
GWA-6D
X
GWA-6S
X
GWA-7D
GWA-7S
GWA-8BR
GWA-8D
GWA-8S
Dan River Combined Cycle Station Page 1 of 2 December 20, 2017

GWA-9D
X
Co2per
GWA-9S
X
Thallium
MW -10
X
Dry 8124117; continue monitoring
MW -10D
X
Total Organic
MW -1I
X
Dry 8124117; continue monitoring
MW -11D
X
Carbon
MW -12
X
MW -12D
X
Total
MW -21D
Calcium
Iron
MW -21S
Strontium
Combined
MW-22BR
X
MW -22D
X
Uranium
MW -22S
X
MW-23BR
Total
MW -23D
Chloride
Lead
MW-317BR
Sulfate
Suspended
MW-317BRL
MW -9
Dry 8124117; continue monitoring
MW -9D
Chromium
Magnesium
Minimum Parameters to be Analyzed
Aluminum
Boron
Co2per
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Dan River Combined Cycle Station Page 2 of 2 December 20, 2017

Revised H. F. Lee Energy Complex
Interim Monitoring Plan — Groundwater Only
Wells to be
Sample for
Sampled
Radionuclides
Regional Office Notes
X)
ABMW-1
ABMW-1S
X
AMW-11BC
AMW-11 S
X
AMW-12BC
AMW-12S
AMW-13BC
AMW-13S
AMW-14BC
AMW-14S
AMW-15BC
AMW-15S
AMW-16BC
AMW-17BC
AMW-17S
AMW-18S
X
AMW-6RBC
AMW-9BC
AMW-19S
Well pairs AMW-19-23 S/BC were added to the list.
AMW-19BC
AMW-20S
AMW-20BC
AMW-21 S
AMW-21BC
AMW-22S
AMW-22BC
AMW-23S
AMW-23BC
BGMW-10
BGMW-9
BW -1
CCR -1005
X
CMW-l0
CMW-5
CMW-6R
CMW-7
CMW-8
H. F. Lee Energy Complex
Page 1 of 3 December 20, 2017

CTMW-1
CW-1
CW-2
CW-3
CW-4
DMW-1
DMW-2
DMW-3
IABMW-1
IABMW-1 S
X
IABMW-2S
IABMW-3
IABMW-3 S
X
IMW-04BC
IMW-05BC
IMW-1BC
IMW-1 S
X
11\4W-2BC
IMW-3BC
IMW-3S
X
IMW-4S
X
IMW-5S
X
LLMW-1
LLMW-1 S
LLMW-2
LLMW-2S
MW-1
MW-2
MW-3
X
SMW-3
SMW-4
SMW-5
H. F. Lee Energy Complex Page 2 of 3 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Co er
MercjLry
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
H. F. Lee Energy Complex Page 3 of 3 December 20, 2017

Revised Marshall Steam Station Interim Monitoring Plan — Groundwater Only
Marshall Steam Station Page 1 of 5 December 20, 2017
Sample for
Wells to be Sampled
Radionuclides Regional Office Notes
i
AB-10BR
AB -10D
AB -10S
AB-10SL
AB -111)
AB -11 S
AB-12BR
X
AB -12D
X
AB -12S
X
AB-12SL
X
AB -13D
AB -13S
AB -14D
AB -14S
AB-15BR
AB -15D
AB -15S
AB-15SL
AB -16D
AB -16S
AB -17D
AB -17S
AB -18D
AB -18S
AB -I BRL
AB -IBR
X
AB -11)
X
AB -IS
X
AB -20D
AB -20S
AB -21D
AB -21 S
AB -2D
X
AB -2S
X
AB -3D
AB -3S
AB -4D
Marshall Steam Station Page 1 of 5 December 20, 2017

NX ells to be Sampled
Sample for
Radionuclides I Regional Office ?Votes
Y
AB -4S
AB-4SL
AB-5BR
X
AB -5D
X
AB -5S
X
AB-6BRL
AB-613RA
Note: AB -613R has been abandoned and thus
removed from the IMP. AB-613RA was installed
as replacement well.
AB -6D
AB -6S
AB -7D
AB -7S
AB -8D
AB -8S
AB-9BR
AB -9D
AB -9S
AL -IBR
X
AL -1D
X
AL -1 S
X
AL-2BR
AL-213RLL
AL-2BRL
AL -2D
AL -2S
AL-3BR
AL -3D
AL -3S
AB-4BRL
AL -413R
AL -4D
BG-1BRA
X
Note: BG- 1BR has been abandoned and thus
removed from the IMP. BG-1BRA was installed
as replacement well.
BG -1D
X
BG -1 S
X
BG-2BR
X
BG -2S
X
BG-3BR
X
Marshall Steam Station Page 2 of 5 December 20, 2017

Sample for i
Wells to be Sampled Radionuclides Regional Office Notes
(X)
BG -3D
X
BG -3S
X
GWA-IBR
X
GWA-1D
X
GWA-1S
X
Note: GWA-21) has been abandoned and thus
GWA-2DA
removed from the IMP. GWA-2DA was
installed as replacement well.
GWA-2S
GWA-317
GWA-3S
GWA-41)
GWA-4S
GWA-5D
GWA-5 S
GWA-6D
X
GWA-6S
X
GWA-7D
GWA-7S
GWA-8D
GWA-8S
GWA-9BR
GWA-10D
GWA-10S
GWA-11BR
X
GWA-111)
X
GWA-11 S
X
GWA-12BR
X
GWA-12D
Sample to be analyzed for total boron and sulfate
only.
GWA-12S
X
GWA-13DA
Sample to be analyzed for total boron and sulfate
only.
(;WA -13S
GWA-14D
GWA-145
GWA-15S
X
MS -8
MS -10
X
MS -1I
Marshall Stearn Station Page 3 of 5 December 20, 2017

Wells to be Sampled
Sample far
Radionuclides
X)
! Regional Office Notes
MS -13
MW -1
MW -101)
X
MW -10S
X
MW -11D
MW -11 S
MW -12D
MW -12S
MW -13D
MW -13S
MW-14BR
X
MW -14D
X
MW -14S
X
MW -2
MW -3
MW -4
X
MW -4D
X
MW -5
MW -6D
X
MW -6S
X
MW -7
Water level only
MW -7D
X
MW -7S
X
MW -8D
X
MW -8S
X
MW -9D
X
MW -9S
X
OB -1 (Dry Ash Basin)
OB -1 (Dry Ash Landfill)
Water level only
Marshall Steam Station Page 4 of 5 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Marshall Steam Station Page 5 of 5 December 20, 2017

Revised Mayo Steam Electric Plant Interim Monitoring Plan — Groundwater Only
Wells to be Sampled
Sample for
Radionuclides
X
Regional Office Notes
ABMW-1
ABMW-2
X
ABMW-2BR
ABMW-2BRL
ABMW-3
ABMW-3S
ABMW-4
ABMW-4BR
X
ABMW-4D
BG -1
X
BG -2
X
CW -1
CW -1D
CW -2
CW -2D
X
X
CW -3
CW -4
CW -5
CW -6
X
MW -1 OBR
MW-1IBRwater
X
level only
MW -12D
X
MW -12S
X
MW-13BR
MW-14BR
MW-15BR
water level only
MW-16BR
X
MW -16D
X
MW -16S
MW -18D
MW-18BR
New installation
New installation
MW -19D
New installation
MW-19BR
New installation
MW -2
MW -3
X
MW-3BR
MW -4
Mayo Steam Electric Plant Pagel of 2 December 20, 2017

MW-5BR
MW-8BR
MW-9BR water level only
MW-9BRL
Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Mayo Steam Electric Plant Page 2 of 2 December 20, 2017

Revised Riverbend Steam Station Interim Monitoring Plan — Groundwater Only
Wells to be
Sampled
Sample for
Radionuclides
X)
Regional Office Notes
AB -1D
Measure pH, if still >10, not sample.
AB -1 S
AB -2D
AB -2S
AB -8D
AB -8S
BG -IDA
BG -IS
BG-2BR
BG -2D
BG -2S
BG -3D
BG -3S
BG-4BR
X
BG -4D
X
BG -4S
X
BG-5BR
BG -5D
C-1BRUA
C -IS
C -2D
C -2S
GWA-10BRU
Measure pH, if still >10, not sample.
GWA-10S
GWA-1 I D
GWA-IIS
GWA-12D
X
GWA-12S
X
GWA-13D
GWA-13S
GWA-14D
GWA-14S
GWA-ISD
GWA-15S
X
GWA-1BRU
GWA-1S
GWA-20BR
Measure pH, if still X10, not sample.
Riverbend Steam Station Page 1 of 3 December 20, 2017

GWA-20DA
GWA-20S
GWA-21 BR
GWA-21 D
GWA-21 S
GWA-22BR-A
X
GWA-22D
X
GWA-22S
X
GWA-23BR
Measure pH, if still >10, not sample.
GWA-23DA
GWA-23S
GWA-2BR
X
GWA-2BRU
X
Measure pH, if still >10, not sample.
GWA-2S
X
GWA-3BR
GWA-3D
GWA-3S-A
GWA4BR
Measure pH, if still >10, not sample.
GWA-4D
X
GWA-4S
X
GWA-5D
GWA-5S
GWA-6D
X
Measure pH, if still >10, not sample.
GWA-6S
X
GWA-7BR
GWA-7D
GWA-7S
GWA-8D
X
GWA-8S
X
GWA-9BR
X
GWA-9D
X
GWA-9S
X
MW-10
X
MW-11 DR
MW-11 SR
MW-13
MW-14
X
MW-15
MW-15BR
MW-15DA
MW-1D
Riverbend Steam Station Page 2 of 3 December 20, 2017

MW -I S
Boron
Copper --Mercury
MW -2D
Selenium
Thallium.
MW -2S -A
MW -3D
Cadmium
Chromium
MW -3S
Sodium
Total Organic
Carbon
MW -4D
MW -4S
MW -5D
MW -5S
MW -6D
Total
MW -6S
MW-7BRA
X
Iron
MW -7D
MW-7SR
X
X
Combined
MW -8D
MW -8I
Uranium
MW -8S
MW -9
X
MW-9BRA
X
MW-9DA
X
Total
Minimum Parameters to be Analyzed
Aluminum
Boron
Copper --Mercury
Selenium
Thallium.
Alkalinity
Cadmium
Chromium
Molybdenum
ybdenum
Sodium
Total Organic
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium. 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Riverbend Steam Station Page 3 of 3 December 20, 2017

Revised Roxboro Steam Electric Plant Interim Monitoring Plan — Groundwater 0n1�'
Wells to be
Sampled
Sample for
Radionuclides
(X
Regional Office Notes
ABMW-1
X
water level only
ABMW-lBR
X
ABMW-2
X
water level only
ABMW -2BR
X
ABMW-3
ABMW-3BR
ABMW-3BRL
ABMW-4
X
ABMW-4BR
X
ABMW-5
X
ABMW-5D
X
ABMW-6
ABMW-6BR
A13MW-7
water level only
ABMW-7BR
ABMW-7BRL
BG -1
X
BG-lBR
X
BG -1 BRL
water level only
BG-1BRLR
X
New installation
BG-2BR
X
New installation, Duke email 12-5-17 well id
correction to BG-2BR
CW -1
CW -2
X
CW -2D
X
CW -3
CW -3D
CW -4
CW -5
X
GMW-10
GMW-11
GMW-6
X
GMW-7
GMW-8
GMW-9
MW -IBR
MW -213R.
Roxboro Steam Electric PIant Page I of 3 December 20, 2017

MW-3BR
X
MW-4BR
MW-4BRL
water level only
MW-5BR
X
MW-SD
X
MW-6BR
X
MW-6D
X
MW-7BR
MW-8BR
MW-9BR
X
MW-1 OBR
X
MW-11BR
X
MW-11D
X
New installation
MW-12BR
MW-13BR
X
MW-14BR
X
MW-15BR
X
MW-15D
X
MW-16BR
X
MW-17BR
X
MW-18BR
X
MW-18D
X
MW-19BRL
X
MW-2
X
MW-20BRL
MW-21BRL
water level only
MW-22BR
MW-22D
MW-23BR
water level only
MW-23BRR
New installation
MW-24BR
MW-25BR
MW-26BR
MW-27BR
New installation
MW-28BR
New installation
MW-29BR
New installation
MW-30BR
New installation
MW-31BR
New installation
MW-32BR
New instaIIation
MW-33BR
New installation
GPMW-1 S
New installation
Roxboro Steam Electric Plant Page 2 of 3 December 20, 2017

Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
MercurySelenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
Roxboro Steam Electric Plant Page 3 of 3 December 20, 2017

Revised L.V. Sutton Energy Complex
Interimm>t Monitorin Plan — Groundwater Onl
Sample for
Wells to be Sampled
Radionuclides
Regional Office Notes
X
AW-IC
AW-2C
AW-2D
AW-3C
X
AW-4C
X
AW-5C
AW-5D
AW-6R-D
Installed in 1st Qtr. 2017 to replace AW-6
AW-6R-E
Installed in 1st Qtr. 2017 to replace AW-6E
AW-7R-D
Installed in 1 st Qtr. 2017 to replace AW-7D
AW-08C
AW-09C
AW-09D
MW-05C
X
MW-05CD
X
MW-05D
X
MW-05R-E
Replaced MW-5E
MW-7C
MW-8
X
MW-8E
X
MW-11
MW-12R
Installed in 1st Qtr. 2017 to replace MW-12
MW-16D
MW-19
MW-20
MW-20D
MW-21C
MW-22B
MW-22C`
MW-23B
MW-23C
MW-23D
X
MW-23E
X
MW-24R-B
MW-24R-C
MW-27B
MW-27C
X
MW-28B
MW-28C
L.V. Sutton Energy Complex
Page 1 of 2 December 20, 2017

MW -31 R -C
X Installed in 1 st Qtr. 2017 to replace MW -31 C
MW -32C
X
MW -33C
X
MW -36C
X
MW -37B
X
MW -37C
X
MW-37CD
X
MW -37D
X
MW -37E
X
MW -38B
MW -38C
X
MW -38D
X
MW -39B
MW -39C
X
MW -39D
X
MW40B
Calcium
MW -40C
Nickel
MW -40D
Combined
MW -41E
SMW-01 C
SMW-02C
Uranium
SMW-03C
SMW-04C
SMW-5C
Total
SMW-06C
Chloride
SMW-06D
Potassium
Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium.
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
L.V. Sutton Energy Complex Page 2 of 2 December 20, 2017

Revised W. H. Weathersnoon Power Plant Interim Monitoring Plan — Groundwater Only
Wells to be
Sampled
Sample for Radionuclides
M
Regional Office Notes
AW -0113
AW -01I
AW -01S
AW -02D
AW -02S
AW -03D
AW -031
AW -03S
BW -01
BW -02D
BW -021
BW -02S
x
BW -03D
X
BW -031
x
BW -03S
x
BW4D
x
Installed October 2017
BW -4I
X
Installed October 2017
BW4S
x
Installed October 2017
CCR -101 -BG
CAMA
x
CW -01
CW -02
CW -03
x
MW -01
X
MW -02
X
MW -03
x
MW -04
X
MW -OS
x
MW -05
x
MW -07
X
MW -33D
MW -331
MW -33S
MW -41D
MW -41I
MW -52
x
MW -53D
MW -531
W. H. Weatherspoon Power Plant Page 1 of 2 December 20, 2017

MW -54D
MW -55D X
MW -55I X
PW -1 (DEP 2)
Minimum Parameters to be Analyzed
Aluminum
Boron
Copper
Mercury
Selenium
Thallium
Alkalinity
Cadmium
Hexavalent
Molybdenum
Sodium
Total Organic
Chromium
Carbon
Total
Antimony
Calcium
Iron
Nickel
Strontium
Combined
Uranium
Total
Arsenic
Chloride
Lead
Potassium
Sulfate
Suspended
Solids
Barium
Chromium
Magnesium
Radium 226
Sulfide
Vanadium
Total
Beryllium
Cobalt
Manganese
Radium 228
Dissolved
Zinc
Solids
W. H. Weatherspoon Power Plant Page 2 of 2 December 20, 2017