FINAL DEQ Response to Proposed IMP Changes 4-04-19 Approved Sampling Summary Attachment

Wells for Quarterly
Monitoring (33)
AB-2155*
AB-25SS*
AB-29SS*
AB-32D
AB-33D
AB-33SS*
AB-34S
AB-35PW5*
AB-38SS*
AB-10BR*/ BRL*
GWA-3 BRL*
GWA-4BRL*
GWA-SBRL*
GWA-6BRL*
CP-1S*/D*
CP-2S*/D*
CP-35*/D*
CP-45*/D*
CP-SS*/D*
CP-6S*/D*/BR*
BG-1BR*
CCR-265* / D* / BR*
CCR-16BR*
Table 2.1- Allen
Allen Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Modification - March 2019
Wells for Semi -Annual Monitoring! (103)
AB-04S/D/BR GWA-055/D/BRA
AB-06R
GWA-06S / DA / BRA
AB-09S / D
AB-10S / D
GWA-075 / D
GWA-085
AB-13S/D
GWA-09S/D/BR
AB-14D / BR
AB-205 / D
GWA-145 / DA
GWA-15S / D
AB-21S/SL/D**/BRL
GWA-195/D**
AB-22S/D/BR/BRL
GWA-22S/D
GWA-23S/D**
AB-24S/SL/D**/BR
AB-25S/SL/BRU**/BR**
GWA-24SA/D/BR
AB-26S / D
AB-30S
AS-12S / D
BG-01S / DA
AB-32S
BG-2S / D / 2BRA2
AB-335
AB-34D
BG-3S / D
BG-4S / D / BR
AB-35S / D* * / BR
GWA-16S/D
AB-36S / D
GWA-21S / DA / BR
AB-375 / D
GWA-26S / D
AB-385 / D / BR
AB-39S / D
GWA-01S / D / BR
Comprehensive Water
Level Sweeps
(includes wells in Semi-
Annual, Quarterly, and
Discontinued Monitoring
Lists)
GWA-02S / D
GWA-03S / D / BRA
GWA-045 / D / BR
Optimized Quarterly & Seml-An nual Parameters for "Non -Hew Wells"
2018 CSA Update Cols
(Total & Dissolved Where Applicable)
Additional Water Quality
Parameters (Total & Dissolved
Where Applicable)
_ Antimony _ _
Lithium
Aluminum
Arsenic
Manganese
_
Alkalinity (CO3/HCO3)
Beryllium
Molybdenum
— —
—� Calcium_
Boron—�_
Nickel
Chloride
W� Cadmium_
Selenium
-Dissolved Oxygen (DO)
Chromium (total)
—Chromium
—
Strontium
Re_d_ox Potential (Eh)
(hexav_alent)
Sulfate
Magnesium_
Cobalt _
Thallium
+Nitrite
—-� Iron__ �_
_
Total Dissolved Solids (TDS)
_ _Nitrate
Oxidation -Reduction Potential (ORP)
Vanadium
—�—� pH
--�_�-Potassium
_�_-�--
�Specific Conductance
Sodium
—Total Organic Carbon (TOC)
Temperature
Turbidity
Discontinue Sampling
Wells/Water Level Only (23)
AB-01R
AB-02/D
AB-05
AB-06A
AB-11D
AB-23S / BRU*
AB-27S /D / BR
AB-28S / D
AB-29S / SL / D
AB-30D
AB-31S
GWA-08D
GWA-17S / D
GWA-18S / D
To Be Replaced
No well replacements planned
at this time
GWA-6D
Notes:
IMP = Interim Monitoring Plan
CSA= Comprehensive Site Assessment
ON = Constituents of Interest
LAMA=Coal Ash Management Act
NCDEQ= North Carolina Department of Envrionmental Quality
Semi -Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will Include the wells listed under Quarterly for
respective events.
*New wells installed as part of the CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly Included as part of the 4th
Quarter 20181MP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will
be re-evaluated with NCDEQ and maybe reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for
he well in which they replace; however, additional parameters may be included voluntarily.
** Denotes well was previously approved by DEQ to be sampled for boron and sulfate only in historic versions of the IMP due to elevated pH. Respective well is proposed to
remain a boron -and -sulfate -only sample location; however, if the pH improves with redevelopment to fa115 8.5 at such well, the well will be sampled for the complete appropriate
parameter suite for that well; Le. "optimized non -new well" or "new well" lists as proposed herein.

Wells for Quarterly
Monitoring (32)
AS-MDx
A -025x 1 SLx I Dx LZR"
x x
AB-045 / BRL
AB-05S
AB-09BRA
AB-10Sx / Dx / BRx / BRLx
AS-015x / Dx
AS-02Dx
AS-03Sx / Dx
BG-01DA
GWA-01S
.GWA-09S / D / BRA
GWA-10S / D
GWA-14D
GWA-15BR
M W-01D
MW-08BRA
MW-11BRL
Table 2.4 - Buck
Buck Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Wells for Semi -Annual Monitor Lngl(74)
AB-04SL
M W-06BR
AB-OSSL
MW-07S / D
MW-085 / D
AB-06BRU
AB-07S /BRU
MW-09S / D
AB-8S/BRU
MW-11S/D/BR
AB-09S / BRUA
BG-01S / BRA
M W-125 / D
M W-13D
BG-02S / D
GWA-145 / D
BG-03S/BRU
GWA-15S/D
GWA-01D
GWA-165/D/BR
GWA-02S/BRA /BRU
MW-OSS/D
GWA-11S / D
GWA-12S/BRU
GWA-13SR/D
GWA-7S / D
GWA-8D
GWA-9S/D
GWA-14S
GWA-18S
GWA-15S / D
GWA-20S
Comprehensive Water
LevelSweeps
(includes wells in Semi -
Annual, Quarter& and
Discontinued Monitoring
Lists)
GWA-16S / D/ BR
GWA-17S
GWA-18S/DA
GWA-19S/D
GWA-20S / D
M W-03S / D
MW-04S / D
M W-SS / D
Optimized Quarterly & Semi -Annual Parameters for "Non -New Wells"
(Total & Dissolved Where Applicable)
Antimony
Arsenic_
Barium
Iron
Manganese
Nickle
Aluminum
Alkalinity(CO3/HCO3)
Calcium
Boron
Selenium
Chloride
Chromium (total)
Sulfate
Dissolved Oxygen (DO)
Chromium(heiavalent)
Thallium
Total Dissolved Solids (TDS)
Lithium
Magnesium
Cobalt
Vanadium
Nitrate + Nitrite
Oxidation -Reduction Potential (ORP)
PH
Phosphorus
Potassium
Redox Potential (Eh)
Sodium
Specific Conductance
Strontium
Temperature
Turbidh
Discontinue Sampling
Wells/Water Level Only (7)
AB-04BRU
AB-OSBRU
GWA-06S
GWA-14BR
M W-01S
M W-06D
M W-06S
To Be Replaced
AB-04BRl SG-01DA, GWA-
09BRA,GWA-09D, GWA-09S,
GWA-14D
None planned at this time,
except for wells to be replaced
IMP= Interim Monitoring Plan
= Comprehensive Site Assessment
.is
= Constituents of Interest
MA = Coal Ash Management Act
N_ C_DEQ = North Carolina Department of Envrionmental Quality
Semi -Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for respective
vents.
'New wells installed as part of the CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part of the 4th Quarter 2018
IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be re-evaluated with
NCDEQ and may be reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for the well in which they replace;
however, additional parameters may be included voluntarily.
Well located In basin; will be sampled quarterly until closed for excavation.

Wells for Quarterly
Monitoring (3)
MW-25BR*
MW-25BRL*
MW-25BRLL*
Table 2.5 - Cape Fear
Cape Fear Steam Electric Plant - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Modification - March 2019
Wells for Semi -Annual Monitoringt .
ABMW-03/S/BR MW-17SU/SL/BR
ABMW-02SU/SL
MW-21SU/SL/BR
ABMW-03 / SR / BR
MW-22S/BR
ABMW-04/S _
ABMW-05S/BR
MW-23S/D/BR
MW-24S/BR
BG M W-04
PZ-01
BGTMW-04
PZ-02
CM W_01
CMW-02
CMW-03
PZ-03S / D
PZ-D4
PZ-05
CMW-05R
PZ-06
CMW-06
PZ-08
CMW-07
Comprehensive Water
Level sweeps
(includes wells in Semi -
Annual, Quarterly, and
Discontinued Monitoring
Lists)
CMW-08
CTM W_01
CTM W-02
CTMW-07
CTMW-08
MW-06BR
MW-09 / BR
MW-10 / D / BR / BRL
MIN-11
MW-12 / BR
MW-15SU/SL/ BR
MW-16S / BR
Optimized Quarterly & Semi -Annual Parameters for "Non -New Wells"
(Total and Dissolved as Applicable)
Aluminum
Manganese
Alkalinity (CO3/HCO3)
___ A_ntimony
+
_
Molybdenum
_
Calcium
-------Antimony
_W Arsenic
_
~Nickel
_
Chloride
_
Barium
Selenium
_
Dissolved Oxygen (DO)
Beryllium
Strontium
Redox Potential (Eh)
Boron
Sulfate
Magnesium
_
Thallium
Nitrate+Nitrite
_Chrom_ium(total)
Chromium (hexavalent)
_� _
Total Dissolved Solids (TDS)
_ _
Oxidation -Reduction Potential (ORP)
Cobalt
Vanadium
pH
_
Zinc
_
Potassium
_Iron
Lithium
_ _
Specific Conductance
_
Sodium
_
Total Organic Carbon (TOC)
Temperature
Turbidity
Discontinue Sampling
Wells/Water Level Only (9)
ABMW-5
MW-13
MW-18S
MW-19S
MW-20S / BR
MW-SBRR
PZ-07
PZ-09
PZ-10
To Be Rep laced
No well replacements planned
at this time
No well replacements pfannea
at this time
r.C1
nterim Monitoring Plan
omprehensive Site Assessment
Constituents of Interest
=Coal Ash Management Act
= North Carolina Department of Envrionmental Quality
t5emi-Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for
respective events.
[.New wells installed as part ofthe CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly Included as part ofthe 4th
uarter 2018 IMP and additional constituents analyzed voluntarily (seeTable 1). After four quarterly events, the monitoring frequency and/or parameter list forthe new wells will
e re-evaluated with NCDEQ and may be reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for
e well in which they replace; however, additional parameters may be included voluntarily.

Table 2.6 - giffside
Cliffs(de Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Mod rcatlon - March 1019
Wells for Quarterly Monitoring (106)
AB-15/D/BROR GWA-64BRL'
AB-2S/D/BRO GWA-65BR'/BRL'
,3S'/SL'/MA15'IVBRUA/13R/BRA GWA-66BRL'
AB-45s/SL'/UA15'/LA35'/D/BR GWA-678R'/BRL'
AS-4S GWA-68BRL'
IB-7S'
1'y DA
CCRQ2BR'
CCR-17BR'
CLMW-2
UMW-351 / D'
GWA-11BR' / BRL'
GWA-20S l EN BR' _
-215' / BRU' / BR' / BRL'
GWA-22S' / BRU
GWA-34BR'
GWA-38S
GWA-395'
GWA-40S'
GWA-47D
Webs fur Seml-Annusl Monitoringf (147)
AB-SS11 BRU/BR
AB-65'/0 I BR
GWA-31D/BRA
GWA-33S/D/Bit
_ AS-15B/D
AS-25'/D'/Bit
AS-38RU
GWA-345
GWA-355/1)
GWA-360 D'
AS41)
GWA-375/D
AS-55/BRU BR
GWA-38D
AS-6S/D/BRA
GWA-42S'
AS-70/BRA
GWA-43S/D
BG-1S'l Dz
GWA-44S/D/BR
CCPMW-15'/D'
_ GWA-45D
GWA-46D
CCR-7S/D
OCR -SD
GWA-48BR
GWA-511)
CCR-125/D
CCR-13D
CCR-151)
GWA-565/D
MW-2DA
CCR4B-15/D
MW-851 I D
CCR-IB-35/D
MW-105/D
CCR-US-35/D
CCR-1.1545/D
MW-21D/BR
MW-220R/DR
CLMW-l'
MW-23S/D/DR
CLMW-5S
CLMW-6
MW-24D'/DR'
MW-25DR
CLP-1"'
MW-305'/D'
CLP-2"'
GWA-1BRU
MW-32S'/D'/BR'
MW-345/BRU
GWA-25'/BRU'/BR'
MW-36S/BRU
GWA-3D'
MW-385' D'/BR'
GWA-45'/D'
MW-40S/BRU
GWA-55/BRU
MW-42S/DA
GWA-105/D
US -ID
GWA-11S'/BRU'
U5.2D'/8R
US-45/D/BRA
U5-5D'/Bit
GWA-12S/BRU
GWA-13BR
GWA-145/0/Bit
US-61)
GWA-23D
GWA-24S/D/BR
US-BS/D/BR
Comprehensive Water
Level Sweeps
(Indudeswellsinsemi-
Annuol, 4uartedy, oM
Dismnrinuednfanrtonnp
GWA-25S
GWA-26S
GWA-27DA'/BR'
GWA-285/BRU/8R
GWA-29D'/BRA
GWA-305 BR
Usrs)
metro for•Non-Nnr WNIV
Additional Water Quality Parameters
total & Dissolved Where App 1(®ble
_ Aluminum
Alkalinity(CO3MC03)
_
Barium
Beryllium
_
Calcium _
Chloride
Dissolved Oxygen_ (00)
Fluoride
Lithium
Magnesium
Nitrate+NltrRe
Oxidation -Reduction Potential (ORP)
pH
Potisslum
It"" Pglardlal (Ehl
Selenium
Specific Conductance
Sodium
phosphv.ru,
Total Organ. crttbcm(I Drl —_
Tempt*acur e
TurhlJu
AS-7BRA
.—MR
US-2S-SLA 7
CL6BW-slap
MWiC
M W-70
MW-11D
IMP = Interim Monitoring Plan
CSA= Comprehenshre Site Assessment
001s =Constituents of Interest
LAMA =Coal Ash Management Act
NMEQ= North Carolina Department of E-r! .mental Quality
tSemi-Annual monitoring events are scheduled m be performed concurrently with two Quarterly monitoring events par Vear and will Include the wells listed under Quarterly for respective werns.
'New wells Installed as part of the LAMA program will be monitored quarterly. samples fromthese wells will be analyzed for parameters formerly Included as part ofthe 4ch Quarter M181MP and additional
wrenhuerus analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list forth, new wells will be re-evaluated with NCDEQ and may be reduced and/or
optimized. Replacement wells will not be considered'newwelts' and will follow the respect monhonng proceed forth, wellln whlchthey replace; however, additional parameters may be Included
voluntarily.
"Wells were previously approved by DEQto be sampled for boron ands,1(ate only in histoncversi,re ofthe IMP due to elevated pH. Wellsthat exhibit elevated pH a re proposed to remain a boron-and-sulf
endy sample location,• however, Rthe pH Improves with redevelopment to fall S8.5 acted, wall, the well will be sampled forthe complete appropriate parametersuite forthat well; Le.'opdmized non-reerweir
well"Ilmaspropesedhw,l,. Nowellsarecurrmtly Baggedwhhthis rtebmmaybeinth,f tum.
"' Wells were previously approved by DEQto be sampled for boron only In hiserieverslom of the IMP due to these locations being Installed as pdezometere Intended for water lavd only.
'Select wells to be sampled for Radium (226+2281
quarterly sampling includes additional assessment monitoring wells scheduled to be 1-11ed in 2019. The proposed monitoring well locations are based on additional data needs and as requested by NCDEQ,
dual well Installation locations will be determined based on held conditions.

Wells for Quarterly
Monitoring (7)
BG-1DA
GWA-4S/D
GWA-SBR/BRD
GWA-6BR
GWA-9BR
Table 2.7 - Dan River
Dan River Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive water level sweep to occur semi-annually
- March 2019
Wells for Semi -Annual Monitoringt (44)
_ BG-5S/0 _—_—_—_�— NIW-225/D/BR
—�— BG-10S/D/BR—
MW-23D/BR
_
GWA-6S/D
i MW-317BR/BRL
GWA-7S/D— MW-20S/D
—
GWA-85/D/BR
--'
.__.�CCR-03S/D
-- _ GWA-9S/ID
I LF-CCR-04S/D
GWA-101)
—
_ —
�GWA_12S/D
— — — .LF-CCR-0SS/D
_
GWA-14S/D —__--, Comprehensive Water
GWA-15D ---
—GWA-16S/D
_ Level Sweeps
_ __
.........
-
_ _ (includes wells inSemi-
GWA-17D _
Annuai, Quarterly, and
-- GWA-20S/D —
----MW-12/D
Discontinued Monitoring
---_
i Lists)
----- MW75/D
0ptimlied Quarterly & Semi -Annual Parameters for "Non New Wells"
(Total)
Antimony
_Arsenic
Manganese
Aluminum
-Molybdenum
Alkalinity(CO3/HCO3)—
_ Beryllium
—�
—
Nickel
_
Calcium
Calcium
Baron
Selenium_—
Chloride—_______
Beryllium—
—Strontium
Dissolved Oxygen (DO)
Chromium (total)
-
__ Sulfate_
Redox Potential (Eh)
Chromium (hexavalent)
__ _
Total Dissolve_d_Solids (TDS)
_
Lithium
Cobalt
—Vanadium
Magnesium_—_
Iron
_ —��
_
Oxidation -Reduction Potential (OW)
PH
Phosphorus
Potassium
Specific Conductance
_
_ Sodium
Radium (226+228)
—Total
Organic Carbon (TOC)
Temperature ____
Turbidity _— --
Interim
%= Comprehensive Site Assessment
Is = Constituents of Interest
MA = Coal Ash Management Act
= North Carolina Department of Envrionmental
Discontinue Sampling
Wells/Water Level Only (1)
GWA-10S
riSIG�-11D
None
Semi -Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for
espective events.
'New wells installed as part of the LAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part of the 4th
ivarter 2018 IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will
)e re-evaluated with NCDEQ and maybe reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for
he well in which they replace; however, additional parameters may be included voluntarily.

Wells for Quarterly
Monitoring (12)
Active Basin
ABMW-IS
AMW-155
BGMW-9
CMW-5
DMW-2
MIN-1
MW-3
Inactive Basins
IABMW-3S
IMW-45
IMW-65*
IMW-75*
DMW-3
Table 2.8 - "
H.F. Lee Energy Complex - IMP Optimization
Summary of Wells, Sampling Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Modification - March 2019
Wells for Semi -Annual Monitoringt (50)
Active Basin
Inactive Basins
ABMW-1
AMW-6RBC
AMW-11S/BC
AMW-12S/BC
IABMW-1/S
IABMW-25
IABMW-3
IMW-1S/BC
AMW-13S/BC
IMW-2BC
AMW-14S/BC
IMW-3S/BC
AMW-15BC
IMW-46C
IMW-55/BC
SMW-3
AMW-16BC
AMW-17S/BC
AMW-185
SMW-4
AMW-19S/BC
BW-1
AMW-205/BC
CW-1 _
CW-3
CW-4
SMW-5
AMW-225/BC
AMW-23S/BC
CCR-1005
CMW-6R
CTMW-1
MW-2
Comprehensive Water
Level Sweeps
(includes wells in Semi-
Annual, Quarterly, and
Discontinued Monitoring
Lists)
LOLA
LLMW-1/5
LLMW-2/S
Optimized Quarterly & Semi -Annual Parameters for "Non -New Wells"
(Total)
, Antimony
Arsenic
_ Selenium_
Strontium
Alkalinity(CO3/HCO3)
Aluminum
Calcium
_ _ _
Barium
Sulfate
B_oron_
__ _ _
�_ Thallium
Dissolved Oxygen (DO)
_ Chloride
Total Dissolved Solids_ (TDS)
Hexavalent Chromium
Chromium (total)
Vanadium
Redox Potential (Eh)
Cobalt
Iron
_ Lithium_____
Manganese
Magnesium
Nitrate + Nitrite
Oxidation -Reduction Potential (ORP)
pH
Phosphorus
Potassium
Specific Conductance
Sodium
Temperature
Turbid'
Discontinue Sampling
Wells/Water Level Only (9)
Active Basin
AMW-9BC
AMW-21S/BC
BGMW-10
CMW-7
CMW-8
CMW-10
DMW-1
Inactive Basins
CW-2
tact
No well replacements planned
at this time
Wells within the footprint of the
Active Basin are slated for
abandonment in 2019.
ABM W-1/S
r
nterim Monitoring Plan
omprehensive Site Assessment
onstituents of Interest
Coal Ash Management Act
=North Carolina Department of Envrionmental Quality
Annual monitoring events are scheduled to be performed concurrently with two quarterly monitoring events per year and will include the wells listed under "Wells for Quarterly
Monitoring" for respective events.
*New wells installed as part of the CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part of the 4th Quarter
2018 IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be re-
valuated with NCDEQ and may be reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for the well in
E
hich they replace; however, additional parameters may be included voluntarily.

Wells for Quarterly Monitoring
(62)
AB-10SL/D/BR/BRL''
AB-12S3/D'/BR'
AB-14D/DU
AS-15SL
AB-16DU
AB-SS'/D'/B R'/B RLs/B RLLs/BRLLL3'
AB-20S
AB-21S
AS-28R''
AB-3S
AB-5S3/D3/DU'/BR'
AB-6S/D/BRA/BRL
AB-7DU
AB-8DU
AL-1S'/D'/BR3/BRCj
AL-2S/D/BR/BRL/B RLL/B RLLL3'
AL-3D/BR
AL4D/BR/BRL
CCR-9S'/DA'
GWA-2DA
GWA-105
GWA-SSS'/D'
MW-14BR'/BRL''
MW-6S3/D3
MW-753/D'
MW W!D'
MW-9S3/D'
Table 2.9 - Marshall
Marshall Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Modfffcatlon - March 2019
Weill fur Semi -Annual Monitoringt (59)
AB-12SL3 _ GWA-6S'/D'
AB-14S GWA-7S/D
AB-15D/BR
GWA-8S/D
AB-20D
GWA-9BR
AB-21D
GWA-10D
AB-2S'/D'
GWA-11S'/D3/BR'
AB-31)
GWA-12S'/D"/BR'
AB-9S/D/BR
GWA-13S/DA"
AL-3S
GWA-145/D
BG-iS'/D3/BRA'
MW-1
BG-253/BR3
MW43/D'
BG-3S3/D'/BR3
MW-7
GWA-1S'/D'/BR3
MW-125/D
GWA-3S/D
MW-13S/D
GWA-4S/D
MW-14S3/D'
GWA-5S/D
OB-1(Dry Ash Landfill)
Comprehensive Water Level Sweeps (includes wells in Semi -Annual, quarterly,
and Discontinued Monitoring Lists)
Optimized Quarterly & Semi -Annual Parameters for "Non -New" Wells
2018 CSA Update MIS (Total & Dissolved if Applicable)
Additional Water quality
Parameters (Total & Dissolved if
Applicable)
Antimony
Manganese
Aluminum
Arsenic
Molybdenum
Alkalinity (003/1-1003)
Barium
Nickel
Calcium
Beryllium
Radium (226+228) 3
Dissolved Oxygen (DO)
Boron
Selenium
Fluoride
Cadmium
Strontium
Lithium
Chloride
Sulfate
Magnesium
Chromium (total)
Total Dissolved Solids (TDS)
Nitrate+Nitrite
Chromium hexavalent)
Thallium
Oxidation -Reduction Potential rORP)
Cobalt
Vanadium
pH
Iron
Potassium
Specific Conductance
Sodium
• Temperature
Total Organic Carbon (toci
Turbidity
Notes:
IMP = Interim Monitoring Plan
CSA = Comprehensive Site Assessment
Cots = Constituents of Interest
CAMA = Coal Ash Management Act
NCDEQ= North Carolina Department of Envdonmental Quality
t5emi-Annual monitoring events are scheduled to be perfom ed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for
respective events.
*New wells installed as part of the CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part ofthe 4th Quarter
2018 IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be re-
valuated with NCDEQ and may be reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for the well in
which they replace; however, additional parameters may be included voluntarily.
" Denotes well was previously approved by DEQto be sampled for boron and sulfate only in historic versions of the IMP due to elevated pH. Respective well is
proposed to remain a boronand-sulfateonly sample location; however, if the pH improves with redevelopment to fall 58.5 at such well, the well will be sampled for the
complete appropriate parameter suite for that well; i.e. "optimized non -new well" or "new well" lists as proposed herein.
t Indicates OCR network well added to IMP per Brandy Costner request (conference call 9/5/18)
Fall currently Included on IMP list that is proposed to be removed from IMP (LAMA) sampling; will continue to be sampled under applicable landfill permit
requirements.
'Total radium to be analyzed at select locations in accordance with 04 2018 IMP
Discontinue Sampling Wells/Water
Level Only (27)
AB-10S
AB-11S/D
AB-13S/D
AB-16S/D
A84S/SL/D
AB-75/D
AB-8S/D
GWA-2S
MS-8z
MS-10,
MS-11z
MS-13z
MW-10S/D
MW-33S/D
M W-2z
MW-3z
MW-5z
08.1 fAth Basin
AB-17S/D
AB-18S/D/DU
To Be Replaced (2)
AB-175 D

Wells for Quarterly
Monitoring (5)
ABMW-4X'
CW-2'
MW-16S / D' / BR'
Table 2.10 - Mayo
Mayo Steam Electric Plant - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Modification - March 2019
11
Wells for Semi -Annual Monitoringt (29)
ABMW-1'
MW-3BR
ABMW-2 / BR / BRL
MW-SBR
ABMW-3/S
MW-9BRL
ABMW-41) / BR
MW-12S' / D'
BG-1'
M W-13 BR
BG-2'
MW-18D / BR
CW-1/D
MW-19D/BR
Comprehensive Water
Level Sweeps
(includes wells in Semi-
Annuol, Quarterly, and
Discontinued Monitoring
Lists)
CW-2D'
CW-3
CWA
C W-5
1
CW-6
M W-2
M W-3'
Optimized Quarterly & Semi -Annual Parameters for "Non -New Wells"
2017 CSA Update COls
(Total & Dissolved Where Applicable)
Additional Water Quality
parameters (Total & Dissolved
Where Applicable)
....... Arsenic
I Manganese
Alkalinity (CO3/HCO3)
Barium
------
Molybdenum
--
CalciumBoron
Radium (226+228)
Chloride
(total)
Strontium
Magnesium
L—C—hro—mium
m (hexavalent)
Sulfate
Nitrate+Nitrite
Cobalt
Total Dissolved Solids (TDS)
pH
Iron
Uranium (233+234+236+238)
-- Potassium
Vanadium
Sodium
_ _
Total Organic Carbon (TOC)
Discontinue Sampling
Wells/Water Level Only (4)
M W-4
M W-8BR
MW-10BR
MW-14BR
Tn 8' Re A;eed
No well replacements planned
at this time
AB7MMW-4
r
Interim MonitoringPlan
Comprehensive Site Assessment
Constituents of Interest
Coal Ash Management Act
Q= North Carolina Department of Envrionmental Quality
-Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly
or respective events.
`New wells installed as part of the CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part of the 4th
Quarter 2018 IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells
ill be re-evaluated with NCDEQ and may be reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring
protocol for the well in which they replace; however, additional parameters may be included voluntarily.
' Select wells to be sampled for radium 226 and 228. These select wells are to be monitored for total radium. If concentrations are greater than the Federal MCL, sample
uarterly. If concentrations are less than the Federal MCL, reduce total radium sampling to semi-annually and reevaluate historical exceedances as possibly anomalous. If
etermined to be anomalous, discontinue sampling for total radium. Background wells BG-1 and BG-2 will also be included in semiannual sampling of total radium for ongoing
omparative purposes.

Wells for Quarterly
Monitoring (23)
CPA-1S*/D*
CPA-2S*/D*
CPA-3S*/D*
CPA-4S*
CPA-SS*/D*
CPA-6S*
CPA-7S*/D*
GWA-11S/D
GWA-12S/D
GWA-20S
GWA-2BRU
GWA-3SA/D/BR
GWA-9D
M W-6D
Table 2.11- Riverbend
Riverbend Steam Station - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water level Sweep to Occur Semi -Annually
Modification - February 2019
Wells for Semi -Annual Monill: ingi (6S
AB-8S/D
MW-1S/D
MW-2SA/D
BG-1S/DA
BG-4S/D
MW-3S/D
BG-SD/BR
MW-4S/D
GWA-1S/BRU
MW-SS/D
MW-6S
GWA-2S/BR
GWA-4S/D/BR
MW-7SR/D/BRA
MW-ES/I/D
GWA-55/D
GWA-6S/D
MW-9/9DA/9BRA
GWA-7S/D/BR
MW-SO
GWA-8S/D
MW-11SR/DR
GWA-9S/BR
MW-13
MW-14
GWA-10S/BRU
GWA-13St
MW-15/15DA/15BR
GWA-14S/D
OB-1 (water level only)
GWA-155/13
OB-2 (water level only)
Comprehensive Water
Level Sweeps
(includes wells in Semi -
Annual, Quarterly, and
Discontinued Monitoring
Lists)
GWA-20DA/BR
GWA-22S/D/BRA
Optimized Quarterly & Semi -Annual Parametersfor "Non -New Wells"
(Total)
Antimony
Iron
Manganese
Aluminum
Alkalinity(CC3/HCO3)
Arsenic
Beryllium
Strontium
Calcium
Boron
Sulfate
Dissolved Oxygen (DO)
Chromium (total)
Total Dissolved Solids (TDS)
Redox Potential (Eh)
Chromium (hexavalent)
Vanadium
Lithium
Cobalt
Magnesium
Molybdenum
Nickel
Nitrate + Nitrite
Oxidation -Reduction Potential (ORP)
pH
Phosphorus
Potassium
Sodium
Specific Conductance
Temperature
Thallium
Turbid!
Discontinue Sampling
Its/Water Level Only {,
BG-35/D
BG-4BR
GWA-13D
To Be Replaced 4
GWA-9BRA
GWA-20BRA
GWA-22SA
MW-45A
AB-15/0
AB-2S/D
GWA-235/DA/BR
Noses
MP - IrtMrim MortRaNng Plan
A = Comprehensive Site Assessment
Is = Constituents of Interest
A * Coal Ash Management Act
COEQ = North Carolina Department of Environmental Quality.
+Semi -Annual monitoring events are scheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for
respective events.
.New wells installed as part ofthe CAMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly included as part ofthe 4th Quarter
2018IMP and additional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be m-
evaluated with NCDEQand maybe reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for the well in
hich they replace; however, additional parameters maybe included voluntarily.
GWA-13S will be temporarily sampled until replacement well GWA-22SA is installed. After GWA-22SA is installed:
1. Sampling of GWA-13S will be discontinued
2. Semi-annual water level measurements of GWA-13S will continue
3. Semi-annual sampling and water level measurements ofGWA-22SA will beitin

Table 2.13 - Sutton
L.V. Sutton Energy Complex - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
vfodificat' March 2019
Wells for Quarterly
Monitoring (38)
Wells for Semi -Annual Monitoringi (48)
Discontinue Sampling Wells/Water
Level Only
(20)
AW-01C
AW-02C
AW-02D
AW-051)
AW-0611-1)
AW-06R-E
AW-0711-1)
AW-09D
MW-11
MW-19
MW-22B
MW-28B
MW-32C
MW-38B
MW-38D
MW-39B
MW-39D
MW-40B
MW40D
SMW-06D
To Be Replaced
No well replacements planned at this
time
No wells are scheduled to be
abandoned at this time.
MW-12R
MW-45B'
AW-03C
AW-04C
AW-05C
AW-08C
MW-40C
SMW-04C
MW-33C
MW-45C*
SMW-01C
MW-46B*
MW-46C*
MW-47B*
SMW-05C
SMW-06C
SMW-02C
SMW-03C
AW-09C
MW-05C
MW-08B
MW-47C*
MW-07C
MW-O.5CD
MW-081)
MW-4BB'
MW-16D
MW-05D
MW-41B
MW-48C*
MW-493*
MW-20
MW-20D
MW-OSR-E
Mw-08
MW-41C
MW-41D
MW-49C*
MW-21C
MW-08E
FPA-1B'
MW-50B'
MW-22C
MW-37B
FPA-1C*
FPA-2B'
MW-50C*
MW-23B
MW-37C
MW-23C
MW-23D
MW-37CD
MW-37D
FPA-2C'
FPA-3B*
MW-23E
MW-37E
FPA-3C*
MW-24RB
MWAIE
FPA-4B*
FPA-4C*
MW-13R'
MW-24RC
ABMW-02D
MW-27B
ABMW-02S
MW-27C
MW-16
MW-13R-D'
MW-28C
MW-36B
MW-15R*
MW-31R-C
SMW-01B
MW-15R-D'
MW-36C
MW-38C
MW-39C
SMW-05B
SMW-06B
MW-058
MW-43B'
MW-43C-
MW-44B*
Comprehensive Site Semiannual water level sweep (includes wells In
Semi -Annual, Quarterly, and Discontinued Monitoring Lists)
MW-44C*
Optimized Quarterly & Semi -Annual Parameters for "Non -New" Wells
(Total)
Arsenic
Strontium
Alkalinity (003/1­10031
Boron
Sulfate
Aluminum
Chloride
TDS (Total Dissolved Solids)
Barium
Chromium (hexavalent)
Vanadium
Calcium
Cobalt
Dissolved Oxygen I DOI
Iron
Lithium
Mangy nese
Magnesium
Molybdenum
NRrate + Nitrite
PH
Oxidation -Reduction Potential ORP
Selenlum
Potassium
Redox Potential Eh
Sodium
Specific Conductance
Temperature
Total O riipflk Cm hnn (TOCI
Fluoride
Turbidit
N s
IMP = Interim Monitoring Plan
A = Comprehensive Site Assessment
Ols = Constituents of Interest
AMA = Coal Ash Management Act
NCDEQ= North Carolina Department of Envrionmental Quality
tSemi-Annual monitoring events are scheduled to he performed concurrently with two Quarterly monitoring events peryear and will include the wells listed under Quarterlyfor respective events,
*New wells installed as part ofthe CAMA program will be monitored quarterly. Samples from these wells will he analyzed for parameters formerly included as part of the 4th Quarter 20181MP and
,dditional constituents analyzed voluntarily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be re-evaluated with NCDEQ and may be
reduced and/or optimized. Replacement wells will not be considered "new wells" and will follow the respective monitoring protocol for the well in which they replace; however, additional parameters
may be included valuntarilc

Wells for Quarterly Monitoring
(20)
BW-4DA-
CPA-15'/I*
CPA-21'
CPA-35'/I*
CPA-4S'/I'
CPA-55'/I'
CPA-6S'/I*
CPA-7S*/I*
CPA-BS'/I*
MW-2 (fuel oil well)*
MW-4 (fuel oil well)*
MW-5511
PW-1 (DEP p2)
Table 2.14 - Weatherspoon
Weatherspoon Power Plant - IMP Optimization
Summary of Wells, Frequency, & Parameters
(to begin Q12019)
Comprehensive Water Level Sweep to occur Semi -Annually
Wells for Semi -Annual Munitor1ng4 (26)
AW-02S
MW-33S/I/D
AW-03S/l
MW-411
BW-2S1
MW-521
BW-3Ss/Is
AW-045
AW-05S
BW-051/I'
CCR-201-BG1
AW-065
CW-2
BW-5S
CW-31
CCR-1071
MW-41
1MW-1s
MW-2z
MW-51
MW-31
Comprehensive Water Level Sweeps(indudes wells in Semi -Annual,
Quarterly, and Discontinued Monitoring Lisa)
Optimized Quarterly & Semi -Annual Parameters for "Non -New Wells" I
Nickel
Boron I Selenium I trthium
Chloride 5trantwm Magnesium
Chromium (total) iullata Nitrate + Nitrite
Chromium (hexavalent) thallmm Oxidation -Reduction Potential JNPi
Cobalt I Total Dissuived Sends nasY I ff
Discorttinue Sampling Wells/Water
Level Only (14)
AW-015/I/D
AW-02D
AW-03D
BW-01
BW-3D
B W-4D
CW-1
MW-41D
MW-531/D
M W-54D
MW-SSD
To Be Replace 2)
h-•,16 (re)laced by CCR-1.,: )
MW-7 (replaced by CCR-107)
=MW-7
MP = Interim Monitoring Plan
SA = Comprehensive Site Assessment
-OIs= Constituents of Interest
MA= Coal Ash Management Act
NCDEQ= North Carolina Department of Emnlonmental Quality
-Es to be sampled for radionuclides (also bolded tact)
+emi-Annual monitoring events are mheduled to be performed concurrently with two Quarterly monitoring events per year and will include the wells listed under Quarterly for respective events.
•New wells installed as part of the COMA program will be monitored quarterly. Samples from these wells will be analyzed for parameters formerly Included as part of the 4th Quarter 2019IMP and additional constituents analyzed
olunterily (see Table 1). After four quarterly events, the monitoring frequency and/or parameter list for the new wells will be re-evaluated with NCDEQ and maybe reduced and/or optimized. Replacement wells will not be
onsidered "new wells" and will follow the respective monitoring protocol for the well In which they replace; however, additional parameters may be included voluntarily.