1812_DukeMarshall_Piez_ReplacementCompletion Report_FID1891048_20240725

DUKE
ENERGY
July 25, 2024
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. Highway 70
Swannanoa, NC 28778
Attn: Ms. Sarah Moutos (submitted electronically)
Re: Piezometer Replacement (Abandon/Install) Completion Report
Industrial Landfill No.1 Phase 3
Permit No.: 1812-INDUS-2008
Marshall Steam Station
Terrell, North Carolina 28682
Dear Ms. Moutos:
525 S. Tryon St.
Charlotte NC, 28202
The Solid Waste Section approved Duke Energy's request for abandoning and replacing Industrial Landfill
No.1 (1812-INDUS; ILF) Phase 3 piezometers CLF-22-306 and CLF-22-307 in a letter dated June 14, 2024.
Duke Energy is providing the Completion Report for the piezometer replacements, including the well
abandonment records, well installation records, boring logs, well construction information, survey data, and
water level information both pre -abandonment and post -installation. The piezometer replacement activities
were conducted by S&ME on June 25-27, 2024.
Well abandonment and construction records (GW-30 and GW-1 forms) were submitted separately to the
NCDEQ Information Processing Unit.
If you need additional information regarding this submittal do not hesitate to email or call me at
Ashley.HealvCcDduke-energy.com or [phone].
Respectfully submitted,
J4$1�Ai
Ashley Healy, P.G.
Environmental Services
Attachments: Completion Report for Monitoring Well Replacements (S&ME, July 2024)
cc (via e-mail): Deana Yitbarek, NCDEQ
Sherri Stanley, NCDEQ
Dan Zakary, Duke Energy
Scott Saunders, Duke Energy
Jake Muessen, Duke Energy
John Metcalf, Duke Energy
Tyler Hardin, Duke Energy
Anne Davin, Duke Energy
Jasmine Tayouga, S&ME
www.duke-energy.com Page 1 of 1

July 24, 2024
Duke Energy Marshall Steam Station
8320 NC Hwy 150 E
Terrell, North Carolina 28673
Attention: Ms. Ashley Healy, P.G.
EHS Waste and Groundwater Programs, Duke Energy
Reference: Completion Report for Monitoring Well Replacements
Duke Energy Marshall Steam Station
Catawba County, North Carolina
S&ME Project No. 21410007, Ph. 02
Dear Ms. Healy:
S&ME, Inc. (S&ME) is pleased to present this Completion Report (hereafter, Report) for the replacement of two (2)
groundwater monitoring wells at Duke Energy's Marshall Steam Station (hereafter, Site), located at 8320 NC Hwy
150 E, in Catawba County, North Carolina. These wells were replaced to support the construction of Cell 7 within
Phase 3 of the Industrial Landfill (ILF) — Permit No. 1812. This Report summarizes the activities performed by
S&ME at the Site between June 2511 and 27t", 2024, as well as a certification statement signed by a North Carolina
licensed geologist, Julie Robertson, P.G, certifying that each monitoring well was abandoned and replaced in
compliance with the applicable standards and guidance as discussed in this Report.
Background and Summary
S&ME understands that as part of the ILF Phase 3 geotechnical investigation, monitoring wells CLF22-306 and
CLF22-307 were installed by others in March of 2022 to collect monthly groundwater elevation data and
demonstrate the vertical separation between groundwater and the compacted soil liner base grade design for Cell
7. Duke Energy requested that these wells be relocated due to their current location being in the vicinity of haul
roads and ongoing construction and earthwork activities. Additionally, the water levels in CLF22-306 and CLF22-
307 have declined several feet since they were installed.
To continue monitoring groundwater levels and confirm the groundwater and soil base grade vertical separation
is met, replacement wells (CLF22-306R and CLF22-307R) were installed as close as practical to the original wells,
given the current and future Site conditions and on -going construction activities (see Figure 1 in Attachment 1).
These replacement wells were also installed deeper than the original wells to allow for an increased water column
in each well for continued groundwater elevation data collection.
Monitoring Well Abandonment
The original monitoring wells CLF22-306 and CLF22-307 were abandoned by a North Carolina registered well
driller on June 261", 2024. Each monitoring well was abandoned in accordance with the 75A NCAC 02C Section
S&ME, Inc. 12016 Ayrsley Town Blvd., Suite 2-A I Charlotte, NC 282731 p 704.523.4726 1 www.smeinc.com

Completion Report for Monitoring Well Abandonments
Duke Energy Marshall Steam Station
S&ME Project Number 21410007, Ph. 02
July 24, 2024
Page 2
.0113 Standards for the Abandonment of Wells (hereafter, Well Abandonment Standards). S&ME personnel
provided support and oversight during the abandonment process for each monitoring well to confirm compliance
with the Well Abandonment Standards as mentioned above.
Per the Well Abandonment Standards, a well must be permanently abandoned if it acts as a source or channel of
contamination. Each of these wells were abandoned prior to earthwork and grading operations to reduce the
likelihood that the wells would act as a channel for contaminants to reach groundwater once the well was
removed during excavation and earthwork activities.
A summary of pertinent monitoring well information for each of the wells abandoned is located in Table 1 in
Attachment II. As required by the Well Abandonment Standards, a Well Abandonment Record (GW-30 Form)
was completed and signed for the two (2) wells abandoned. S&ME submitted these GW-30 Forms to the North
Carolina Department of Environmental Quality (NCDEQ) — Division of Water Resources (DWR) Information
Processing Unit, and they are included in Attachment III as reference.
Each of the monitoring wells were abandoned following the general steps listed below:
If present, any dedicated tubing, pumps, or transducers were removed from the well and left on site with Duke
Energy personnel.
Depth to water from ground surface was measured using an electronic water level meter. The bottom of each
well was also tagged to ensure no discrepancies between recorded and actual well depth data exist.
The volume of water in the well was calculated based on the measured water level.
Each well was abandoned using coated bentonite pellets in accordance with the general requirements of 02C
Standards, as equipment access to these wells was very limited at the time of abandonment.
S&ME understands that the protective well covers and concrete pads will be removed from each of the
abandoned well locations by the general earthwork contractor on Site.
Installation of Replacement Monitoring Wells
The replacement monitoring wells were installed by a North Carolina Registered well driller; CLF22-306R was
installed on June 251", 2024, and CLF22-306R was installed on June 261", 2024. Each of these wells was constructed
as typical Type II Monitoring Wells in accordance with the 75A NCAC 02C Section .0108 Standards of Construction:
Wells Other than Water Supply (hereafter, Well Construction Standards). S&ME personnel provided support and
oversight during the well installation process.
Each of the replacement monitoring wells were installed following the general steps listed below:
A borehole was drilled using 3.25-inch Hollow Stem Augers (HSAs) to the target elevations provided by Duke
Energy. It should be noted that CLF22-307R was drilled 3.2-feet deeper than proposed to confirm adequate
water would be present once the well was installed. No sampling was performed; however, S&ME personnel
classified soil from the auger cuttings in general accordance with the United Soil Classification System (USCS),
in addition to recording other pertinent drilling information including hard drilling zones and the depth water
was encountered during drilling.
The HSAs were removed from the borehole and a 2-inch diameter Type II monitoring well was installed at
each location (CLF22-306R and CLF22-307R) as specified below:
2-inch diameter sch. 40 Polyvinyl Chloride (PVC) casing
10-foot PVC 0.010-inch slotted screen (pre -packed)
S&ME, Inc.

Completion Report for Monitoring Well Abandonments
Duke Energy Marshall Steam Station
S&ME Project Number 21410007, Ph. 02
No. 2 filter sand pack to 2-feet above the top of the well screen
A 2-foot annular seal (bentonite pellets) above the sand pack
Neat cement grout from ground surface to top of annular seal
Protective steel cover
4-inch-thick concrete well pad (2-foot by 2-foot)
Four (4) bollards were installed around each well location
July 24, 2024
Page 3
Once well installation was completed, each well was developed by S&ME personnel on June 261" and 27t", 2024,
following the general steps below:
Depth to water was measured (from ground surface), and the volume of water present in each well was
calculated
Each well was then pumped until a minimum of three (3) well volumes were removed, and a turbidity less
than 50 NTUs was achieved
If a well was pumped dry, it was monitored, and recharge rates were recorded
Periodically, the pump was moved up and down to increase agitation and removal of any soil particles
during development
Boring logs including the soil lithology, drilling observations, and well construction details are included as
Attachment IV. A summary of pertinent monitoring well construction information for each of replacement wells is
located in Table 2 in Attachment II. As required by the Well Construction Standards, a Well Construction Record
(GW-1 Form) was completed and signed for the two (2) wells installed. S&ME submitted these GW-1 Forms to the
NCDEQ-DWR Information Processing Unit, and they are included in Attachment III as reference. Well
development forms are included in Attachment V.
Monitoring Well Replacement Certification
Monitoring wells CLF22-306 and CLF22-307 discussed in this Report were abandoned in accordance with the
requirements of the Well Abandonment Standards by a certified Well Driller licensed in the State of North
Carolina. Replacement monitoring wells CLF22-306R and CLF22-307R were installed as typical Type II monitoring
wells by a certified Well Driller licensed in the State of North Carolina. Under the supervision of an S&ME licensed
geologist, an S&ME professional was on site to observe each well abandonment and installation.
Closure
S&ME appreciates each and every opportunity to be of service to Duke Energy. Please contact us if you have any
questions regarding this report.
S&ME, Inc.

Completion Report for Monitoring Well Abandonments July 24, 2024
Duke Energy Marshall Steam Station Page 4
S&ME Project Number 21410007, Ph. 02
Sincerely,
5&ME, Inc.
t, f„4,nC)JF'
Vil
Jasmine Tayouga, E.I.
Julie P. Robertson, P.G.
Project Manager/Team Lead
Vice President/Services Manager
[e-mail]
[e-mail]
Attachments:
I — Figures
II — Tables
III — Well Abandonment and Construction Records (GW-30/GW-1 Forms)
IV — Boring Logs
V — Well Development Forms
S&ME, Inc.

Attachments

Attachment I — Figures

Path: T:\Asheville-141
3rojects\2021\21410007 Duke Marshall CCP Closure On -Call Services Terrell NC\02_Well Abandonments\June2024\GIS\MSS_June2C
FUTUREELF!FUTURE ILF ILF PHASESPHASE 4 CELL 7
0 400 800
(FEET) ;
REFERENCE:
THIS MAP IS FOR INFORMATIONAL PURPOSES ONLY. PREVIOUSLY ABANDONED
AND/OR REMOVED MONITORING WELLS ARE NOT SHOWN ON THIS MAP. AERIAL
IMAGERY DATE: JULY 8, 2024. ALL FEATURE LOCATIONS DISPLAYED ARE
APPROXIMATED. THEY ARE NOT BASED ON CIVIL SURVEY INFORMATION, UNLESS x
STATED OTHERWISE. _
MONITORING WELL REPLACEMENTS - JUNE 2024
III E DUKE ENERGY - MARSHALL STEAM STATION
CATAWBA COUNTY, NORTH CAROLINA
07-22-2024
C;7
LEGEND
MONITORING WELLS ABANDONED ON 6/26/2024
MONITORING WELLS INSTALLED ON 6/25 AND 6/26/2024
■■ ■� INDUSTRIAL LANDFILL (ILF) BOUNDARIES (PERMIT NO. 1812)
1804 PH. II LANDFILL (PERMIT NO. 1804)
ASBESTOS LANDFILL (PERMIT NO. 1804)
DEMOLITION LANDFILL (PERMIT NO. 1804)
SCALE: FIGURE NO.
1 " = 400 '
DATE:
7-22-2024
PROJECT NUMBER
21410007

Attachment II — Tables

Table 1: Summary of Monitoring Well Abandonments
CLF22-306 and CLF22-307 Monitoring Well Replacements
Duke Energy - Marshall Steam Station
S&ME Project No. 27470007, Ph. 02
Depth to Water
Total Well
Casing Stick -Up
Total Well Depth
s
Screened Interval
a
Northing
a
Easting
Date
Prior to
Well ID'
z
Depth
Height
(ft-bgs)
(ft-bgs)
(ft-NAD83)
(ft-NAD83)
Abandoned
Abandonment
(ft-toc)
(ft-ags)
(ft-toc)
CLF22-306
28.3
3.3
25.0
15.0 to 25.0
685033.0
1413752.3
6/26/2024
26.7
CLF22-307
43.0
3.0
40.0
30.0 to 40.0
684539.9
1413247.5
6/26/2024
37.5
Notes:
I Each monitoring well consisted of 2-inch inner diameter inner polyvinyl chloride (PVC) casing
z Total Well Depth - prior to abandonment, the depth to the bottom of the screened interval was measured on each well
3 Screened intervals were recorded from information on the well tag at each location
° Northing and Easting coordinates provided by Duke Energy
ft: feet
ags: above ground surface
bgs: below ground surface
NAD83: North American Datum 1983
toc: top of casing

Table 2: Summary of Well Construction Information
CLF22-306 and CLF22-307 Monitoring Well Replacements
Duke Energy - Marshall Steam Station
S&ME Project No. 27470007, Ph. 02
Ground
Casing Stick-
Total Well
Depth to
4
Geology in
Well
Date
Northing
Easting
Surface
Screened Interval
Well ID
2
Up Height
Depth
3
Water
Screened
Diameter
Casing Type
Installed
(ft-NAD83)
(ft-NAD83)
Elevation
(ft-bgs)
(ft-ags)
(ft-bgs)
(ft-bgs)
Intervals
(in)
(ft-MSL)
CLF22-306R
1 6/26/2024
1 685002.97
1 1413817.98
1 814.4
1 4.0
1 34.0
1 22.9
1 24.0 to 34.0
SAP/PWR
2.0
Sch. 40 PVC
CLF22-307R
1 6/25/2024
1 684435.19
1 1413298.66
1 804.3
1 3.2
1 28.9
1 21.8
1 18.9 to 28.9
SAP/PWR
2.0
Sch. 40 PVC
Notes:
1 Northing and Easting coordinates measured by S&ME personnel with a GPS unit in the field
2 Ground Surface Elevation measured by S&ME personnel with a GPS unit in the field
3 Depth to Water measured in each well on 6/27/2024
4 Monitoring well screens consist of sch. 40 PVC 0.010-inch machine -slotted pipe (pre -packed)
5 SAP - Saprolite, PWR - Partially Weathered Rock
ft: feet
NAD83: North American Datum 1983
MSL: Mean Sea Level
ags: above ground surface
toc: top of casing
bgs: below ground surface
in: inches
Sch. 40 PVC: Schedule 40 Polyvinyl Chloride

Attachment III - Well Abandonment and Construction Records
(GW-30 and GW-1 Forms)

WELL ABANDONMENT RECORD
1. Well Contractor Information:
Justin Marlowe
Well Contractor Name (or well owner personally abandoning well on his/her property)
4452-A
NC Well Contractor Certification Number
Phenom Geotech
Company Name
2. Well Construction Permit #: Not Applicable
List all applicable well construction permits (i.e. UIC, County, State, Variance, etc) ifknown
3. Well use (check well use):
Water Supply Well:
❑Agricultural
❑Municipal/Public
❑Geothermal (Heating/Cooling Supply)
❑Residential Water Supply (single)
❑Industrial/Commercial
❑Residential Water Supply (shared)
❑Irriation
Non -Water Supply Well:
RMonitoring
❑Recovery
Injection Well:
El Aquifer Recharge
❑Groundwater Remediation
El Aquifer Storage and Recovery
El Salinity Barrier
El Aquifer Test
❑Stormwater Drainage
❑Experimental Technology
❑Subsidence Control
❑Geothermal (Closed Loop)
❑Tracer
❑Geothermal (Heating/Cooling Return)
❑Other (explain under 7g)
4. Date well(s) abandoned:
6/26/2024
5a. Well location:
Duke Energy Carolinas Not Applicable
Facility/Owner Name Facility ID# (if applicable)
8320 NC Hwy 150, Terrell, NC 28673
Physical Address, City, and Zip
Catawba 461803426350
County
Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees:
(if well field, one lat/long is sufficient)
35.61623290 N-080.97265500 W
CONSTRUCTION DETAILS OF WELL(S) BEING ABANDONED
Attach well construction record(s) ifavailable. For multiple injection or non -water supply wells
ONLY with the same construction/abandonment, you can submit one form.
6a. Well ID#: CLF22-306
6b. Total well depth: 25.0 (ft.)
6c. Borehole diameter: 6.0 (in.)
6d. Water level below ground surface: 23.4 (ft.)
6e. Outer casing length (if known): Not Applicable (ft.)
6f. Inner casing/tubing length (if known): 1 5. 0 (ft.)
6g. Screen length (if known): 1 0.0 (ft.)
For Internal Use ONLY:
WELL ABANDONMENT DETAILS
7a. For Geoprobe/DPT or Closed -Loop Geothermal Wells having the same
well construction/depth, only I GW-30 is needed. Indicate TOTAL NUMBER of
wells abandoned: Not Applicable
7b. Approximate volume of water remaining in well(s): 0. 3 (gal.)
FOR WATER SUPPLY WELLS ONLY:
7c. Type of disinfectant used:
7d. Amount of disinfectant used:
7e. Sealing materials used (check all that apply):
❑ Neat Cement Grout N Bentonite Chips or Pellets
❑ Sand Cement Grout
❑ Concrete Grout
❑ Specialty Grout
❑ Bentonite Slurry
❑ Dry Clay
❑ Drill Cuttings
❑ Gravel
❑ Other (explain under 7g)
7f. For each material selected above, provide amount of materials used:
45 pounds coated bentonite pellets
7g. Provide a brief description of the abandonment procedure:
Coated bentonite pellets were slowly poured into
the well, and water was added to hydrate the
pellets, until it reached the top of PVC casing.
8. Certification:
- 7/19/2024
StgnaturcofCr:niScdWcllCantractororWcl]awna Date
By signing this form, I hereby certify that the well(s) was (were) abandoned in
accordance with 15A NCAC 02C .0100 or 2C .0200 Well Construction Standards
and that a copy of this record has been provided to the well owner.
9. Site diagram or additional well details:
You may use the back of this page to provide additional well site details or well
abandonment details. You may also attach additional pages if necessary.
SUBMITTAL INSTRUCTIONS
10a. For All Wells: Submit this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Information Processing Unit,
1617 Mail Service Center, Raleigh, NC 27699-1617
10b. For Iniection Wells: In addition to sending the form to the address in 10a
above, also submit one copy of this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Underground Injection Control Program,
1636 Mail Service Center, Raleigh, NC 27699-1636
loc. For Water Supply & Iniection Wells: In addition to sending the form to the
address(es) above, also submit one copy of this form within 30 days of completion
of well abandonment to the county health department of the county where
abandoned.
Form GW-30 North Carolina Department of Environmental Quality - Division of Water Resources Revised 2-22-2016

WELL ABANDONMENT RECORD
1. Well Contractor Information:
Justin Marlowe
Well Contractor Name (or well owner personally abandoning well on his/her property)
4452-A
NC Well Contractor Certification Number
Phenom Geotech
Company Name
2. Well Construction Permit #: Not Applicable
List all applicable well construction permits (i.e. UIC, County, State, Variance, etc) ifknown
3. Well use (check well use):
Water Supply Well:
❑Agricultural
❑Municipal/Public
❑Geothermal (Heating/Cooling Supply)
❑Residential Water Supply (single)
❑Industrial/Commercial
❑Residential Water Supply (shared)
❑Irriation
Non -Water Supply Well:
RMonitoring
❑Recovery
Injection Well:
El Aquifer Recharge
❑Groundwater Remediation
El Aquifer Storage and Recovery
El Salinity Barrier
El Aquifer Test
❑Stormwater Drainage
❑Experimental Technology
❑Subsidence Control
❑Geothermal (Closed Loop)
❑Tracer
❑Geothermal (Heating/Cooling Return)
❑Other (explain under 7g)
4. Date well(s) abandoned:
6/26/2024
5a. Well location:
Duke Energy Carolinas Not Applicable
Facility/Owner Name Facility ID# (if applicable)
8320 NC Hwy 150, Terrell, NC 28673
Physical Address, City, and Zip
Catawba 461803426350
County
Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees:
(if well field, one lat/long is sufficient)
35.61485080 N-080.9743201 ° W
CONSTRUCTION DETAILS OF WELL(S) BEING ABANDONED
Attach well construction record(s) ifavailable. For multiple injection or non -water supply wells
ONLY with the same construction/abandonment, you can submit one form.
6a. Well ID#: CLF22-307
6b. Total well depth: 40.0 (ft.)
6c. Borehole diameter: 6.0 (in.)
6d. Water level below ground surface: 34.5 (ft.)
6e. Outer casing length (if known): Not Applicable (ft.)
6f. Inner casing/tubing length (if known): 30.0 (ft.)
6g. Screen length (if known): 1 0.0 (ft.)
For Internal Use ONLY:
WELL ABANDONMENT DETAILS
7a. For Geoprobe/DPT or Closed -Loop Geothermal Wells having the same
well construction/depth, only I GW-30 is needed. Indicate TOTAL NUMBER of
wells abandoned: Not Applicable
7b. Approximate volume of water remaining in well(s): 0. 9 (gal.)
FOR WATER SUPPLY WELLS ONLY:
7c. Type of disinfectant used:
7d. Amount of disinfectant used:
7e. Sealing materials used (check all that apply):
❑ Neat Cement Grout N Bentonite Chips or Pellets
❑ Sand Cement Grout
❑ Concrete Grout
❑ Specialty Grout
❑ Bentonite Slurry
❑ Dry Clay
❑ Drill Cuttings
❑ Gravel
❑ Other (explain under 7g)
7f. For each material selected above, provide amount of materials used:
68 pounds coated bentonite pellets
7g. Provide a brief description of the abandonment procedure:
Coated bentonite pellets were slowly poured into
the well, and water was added to hydrate the
pellets, until it reached the top of PVC casing.
8. Certification:
- 7/19/2024
StgnaturcofCr:niScdWcllCantractororWcl]awna Date
By signing this form, I hereby certify that the well(s) was (were) abandoned in
accordance with 15A NCAC 02C .0100 or 2C .0200 Well Construction Standards
and that a copy of this record has been provided to the well owner.
9. Site diagram or additional well details:
You may use the back of this page to provide additional well site details or well
abandonment details. You may also attach additional pages if necessary.
SUBMITTAL INSTRUCTIONS
10a. For All Wells: Submit this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Information Processing Unit,
1617 Mail Service Center, Raleigh, NC 27699-1617
10b. For Iniection Wells: In addition to sending the form to the address in 10a
above, also submit one copy of this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Underground Injection Control Program,
1636 Mail Service Center, Raleigh, NC 27699-1636
loc. For Water Supply & Iniection Wells: In addition to sending the form to the
address(es) above, also submit one copy of this form within 30 days of completion
of well abandonment to the county health department of the county where
abandoned.
Form GW-30 North Carolina Department of Environmental Quality - Division of Water Resources Revised 2-22-2016

WELL CONSTRUCTION RECORD (GW-1)
For Internal Use Only:
1. Well Contractor Information:
Justin Marlowe
Well Contractor Name
4452-A
NC Well Contractor Certification Number
Pheom Geotech
Company Name
2. Well Construction Permit #:Not Applicable
List all applicable well construction permits (i. e. UIC, County, State, Variance, etc.)
3. Well Use (check well use):
Water Supply Well:
❑Agricultural
❑Municipal/Public
❑Geothermal (Heating/Cooling Supply)
El Residential Water Supply (single)
❑Industrial/Commercial
❑Residential Water Supply (shared)
❑Ini ation
❑Wells>100,000GPD
Non -Water Supply Well:
OMonitoring
❑Recovery
Injection Well:
❑Aquifer Recharge
❑Groundwater RemediatiolRemarks)
El Aquifer Storage and Recovery
El Salinity Barrier
El Aquifer Test
❑Stormwater Drainage
❑Experimental Technology
El Subsidence Control
❑Geothermal (Closed Loop)
❑Tracer
❑Geothermal (Heating/Cooling Return)❑Other
(explain under #21
4. Date Well(s) Completed: 6/26/2024 Well ID# CLF22-306R
5a. Well Location:
Duke Energy Carolinas Not Applicable
Facility/Owner Name Facility ID# (if applicable)
8320 NC Hwy 150, Terrell, NC 28673
Physical Address, City, and Zip
Catawba 461803426350
County
Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees:
(if well field, one lat/long is sufficient)
35.616154 N-80.972432 W
6. Is(are) the well(s): InPermanent or []Temporary
7. Is this a repair to an existing well: ❑Yes or [INo
If this is a repair, fill out known well construction information and explain the nature of the
repair under #21 remarks section or on the back of this form.
8. For Geoprobe/DPT or Closed -Loop Geothermal Wells having the same
construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wells
drilled: Not Applicable
9. Total well depth below land surface: 34.0 (ft.)
For multiple wells list all depths if different (example- 3@200' and 2@100)
10. Static water level below top of casing: 26.9 (ft.)
If water level is above casing, use `•+"
11. Borehole diameter: 7.0 (in.)
12. Well construction method: Hollow Stem Auger
(i.e. auger, rotary, cable, direct push, etc.)
14. WATER ZONES
FROM
TO
DESCRIPTION
N/A ft•
N/A ft
N/A
fr.
rt.
15. OUTER CASING (for multi -cased wells) OR LINER (if applicable)
FROM
I TO
DIAMETER F
THICKNESS
I MATERIAL
N/A ft.
I N/A ft.
I N/A in- I
N/A
I N/A
16. INNER CASING OR TUBING (geothermal closed -loop)
FROM
TO
DIAMETER
THICKNESS
I MATERIAL
N/A fr.
N/A ft.
N/A in'
N/A
N/A
ft.
ft.
in.
17. SCREEN
FROM
TO
DIAMETER
SLOT SIZE
THICKNESS
MATERIAL
24.0 ff
34.0 ft•
2.0 in'
0.010
sch. 40
PVC
ft.
ft.
in.
18. GROUT
FROM
TO
MATERIAL
EMPLACEMENT METHOD & AMOUNT
0.0 ft•
20.0 ft•
neat cement grout
pour -25 gallons
20.0 ft•
22.0 ft•
bentonite pellets
pour -20 pounds
ft.
ft.
19. SAND/GRAN, Ft, PACK (if applicable)
FROM
TO
MATERIAL
EMPLACEMENT METHOD
22.0 ft•
34.3 ft•
no. 2 filter sand
pour
ft.
ft.
20. DRILLING LOG (attach additional sheets if necessary)
FROM
TO
DESCRIPTION (color, hardness, soil/rock type, grain size, etc.)
0.0 ft-
15.0 ft-
Sandy Silt (ML) - brownish red, non -plastic, fine
ft.
ft.
to medium sand, micaceous [Residual]
15.0 rt•
29 0 ft.
Silt (ML) - brown to yellowish brown, non-
rt.
rt.
plastic, few fine sand, micaceous [Saprolite]
29.0 rt•
34.3 rt•
Silty Sand (SM) - yellowish brown, pale red,
ft.
rt.
white, fine to coarse, non -plastic fines,
ft.
ft.
micaceous [Partially Weathered Rock]
21. REMARKS
22. Certification-
" Signelurc of Certified Well Contractor or WCIJOwmcr
7/19/2024
Date
By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with
15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy
of this record has been provided to the well owner.
23. Site diagram or additional well details:
You may use the back of this page to provide additional well construction info
(add'See Over' in Remarks Box). You may also attach additional pages if necessary.
24. SUBMITTAL INSTRUCTIONS
Submit this GW-1 within 30 days of well completion per the following:
24a. For All Wells: Original form to Division of Water Resources (DWR),
Information Processing Unit, 1617 MSC, Raleigh, NC 27699-1617
24b. For Injection Wells: Copy to DWR, Underground Injection Control (NC)
Program, 1636 MSC, Raleigh, NC 27699-1636
24c. For Water Supply and Open -Loop Geothermal Return Wells: Copy to the
county environmental health department of the county where installed
FOR WATER SUPPLY WELLS ONLY: 24d. For Water Wells producing over 100,000 GPD: Copy to DWR, CCPCUA
13a. Yield (gpm) Method of test: Permit Program, 1611 MSC, Raleigh, NC 27699-1611
13b. Disinfection type: Amount:
Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 6-6-2018

Monitoring Well Construction Form III a
S&ME Project: Marshall Well Replacements Project Number: 21410007, Ph. 02
Driller/Company: Justin Marlowe/Phenom Geotech
Well Installation Method: Hollow Stem Augers
WELL NO.
CLF22-306R
Drill Rig: Mobile B-57 (tracked)
Borehole Diameter (in.): 7.0
Start Date: 6/26/24
Northing (ft): 685002.97
Easting (ft): 1413817.98
Reference Point for Measurements: Below Ground Surface (BGS)
Completion Date: 6/26/24
Depth to Water (ft. BGS): 22.9
Date: 6/27/24
Height of casing stick-up above ground surface (ft): 4.0
DEPTH
Height of concrete pad above ground surface (in): 2.0
(in feet)
Concrete pad thickness (in): 4.0
Ground Surface (Elevation 814.4')
0
Protective Surface Casing
Size (in): 4 x 4
Type: Steel
Bottom of Protective Surface Casing
1.0
Backfill Material Riser Casing
Type: neat cement grout Type: sch. 40 PVC
Dia (in): 2
Top of Annular Seal
20.0
Annular Seal
Type: bentonite pellets Top of Filter Pack
22.0
Top of Screen
24.0
Screen Type
Dia (in): 2 Filter Pack
Type: sch. 40 PVC (pre -packed) Type: no. 2 filter sand
Slot (in): 0.010
Bottom of Screen
34.0
Bottom of Sump
I 34.3
Bottom of Hole
I 34.3

WELL CONSTRUCTION RECORD (GW-1)
For Internal Use Only:
1. Well Contractor Information:
Justin Marlowe
Well Contractor Name
4452-A
NC Well Contractor Certification Number
Pheom Geotech
Company Name
2. Well Construction Permit #:Not Applicable
List all applicable well construction permits (i. e. UIC, County, State, Variance, etc.)
3. Well Use (check well use):
Water Supply Well:
❑Agricultural
❑Municipal/Public
❑Geothermal (Heating/Cooling Supply)
El Residential Water Supply (single)
❑Industrial/Commercial
❑Residential Water Supply (shared)
❑Ini ation
❑Wells>100,000GPD
Non -Water Supply Well:
OMonitoring
❑Recovery
Injection Well:
❑Aquifer Recharge
❑Groundwater RemediatiolRemarks)
El Aquifer Storage and Recovery
El Salinity Barrier
El Aquifer Test
❑Stormwater Drainage
❑Experimental Technology
El Subsidence Control
❑Geothermal (Closed Loop)
❑Tracer
❑Geothermal (Heating/Cooling Return)❑Other
(explain under #21
4. Date Well(s) Completed: 6/25/2024 Well ID# CLF22-307R
5a. Well Location:
Duke Energy Carolinas Not Applicable
Facility/Owner Name Facility ID# (if applicable)
8320 NC Hwy 150, Terrell, NC 28673
Physical Address, City, and Zip
Catawba 461803426350
County
Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees:
(if well field, one lat/long is sufficient)
35.614566 N-80.974141 W
6. Is(are) the well(s): InPermanent or ❑Temporary
7. Is this a repair to an existing well: ❑Yes or IlNo
If this is a repair, fill out known well construction information and explain the nature of the
repair under #21 remarks section or on the back of this form.
8. For Geoprobe/DPT or Closed -Loop Geothermal Wells having the same
construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wells
drilled: Not Applicable
9. Total well depth below land surface: 28.9 (ft.)
For multiple wells list all depths if different (example- 3@200' and 2@100)
10. Static water level below top of casing: 25.0 (ft.)
If water level is above casing, use `•+"
11. Borehole diameter: 7.0 (in.)
12. Well construction method: Hollow Stem Auger
(i.e. auger, rotary, cable, direct push, etc.)
14. WATER ZONES
FROM
TO
DESCRIPTION
N/A ft
N/A rt
N/A
fr.
rt.
15. OUTER CASING (for multi -cased wells) OR LINER (if applicable)
FROM
I TO
DIAMETER F
THICKNESS
I MATERIAL
N/A ft.
I N/A ft.
I N/A in- I
N/A
I N/A
16. INNER CASING OR TUBING (geothermal closed -loop)
FROM
TO
DIAMETER
THICKNESS
I MATERIAL
N/A ft.
N/A ft.
N/A in'
N/A
N/A
ft.
ft.
in.
17. SCREEN
FROM
TO
DIAMETER
SLOT SIZE
THICKNESS
MATERIAL
18 9 ft.
28.9 rt.
2.0 in'
0.010
sch. 40
PVC
fr.
ft.
in.
18. GROUT
FROM
TO
MATERIAL
EMPLACEMENT METHOD & AMOUNT
0.0 fr•
15.0 fr•
neat cement grout
pour -19 gallons
15.0 fr•
17.0 fr•
bentonite pellets
pour -20 pounds
ft.
ft.
19. SAND/GRAVFt, PACK (if a livable)
FROM
TO
MATERIAL
EMPLACEMENT METHOD
17.0 ft•
29 2 ft'
no. 2 filter sand
pour
ft.
ft.
20. DRILLING LOG (attach additional sheets if necessary)
FROM
TO
DESCRIPTION (color, hardness, soil/rock type, grain size, etc.)
0.0 ft'
7.5 ft-
Silty Sand (SM) - reddish brown, medium, non -plastic fines, micaceous [RES]
7.5 ft'
16.0 ft'
Sandy Silt (ML) - brownish red, white, non -plastic,
ft.
ft-
fine to coarse sand, micaceous [Saprolite]
16.0 ft'
20.0 ft'
Silty Sand (SM) - yellowish brown, white, red, medium to coarse,
ft.
ft.
non -plastic fines, micaceous [Partially Weathered Rock]
20.0 1`
28.5 IL
Well Graded Sand with Silt (SW-SM) - light brown,
ft.
ft.
medium, non -plastic fines, micaceous [Saprolite]
21. REMARKS
28.5 to 29.2 - Same description as 20.0 to 28.5 interval, observed as Partially Weathered Rock
22. Certificatian,
Signature Of Certified Well Contractor or Weil Owner
7/19/2024
Date
By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with
15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy
of this record has been provided to the well owner.
23. Site diagram or additional well details:
You may use the back of this page to provide additional well construction info
(add'See Over' in Remarks Box). You may also attach additional pages if necessary.
24. SUBMITTAL INSTRUCTIONS
Submit this GW-1 within 30 days of well completion per the following:
24a. For All Wells: Original form to Division of Water Resources (DWR),
Information Processing Unit, 1617 MSC, Raleigh, NC 27699-1617
24b. For Injection Wells: Copy to DWR, Underground Injection Control (NC)
Program, 1636 MSC, Raleigh, NC 27699-1636
24c. For Water Supply and Open -Loop Geothermal Return Wells: Copy to the
county environmental health department of the county where installed
FOR WATER SUPPLY WELLS ONLY: 24d. For Water Wells producing over 100,000 GPD: Copy to DWR, CCPCUA
13a. Yield (gpm) Method of test: Permit Program, 1611 MSC, Raleigh, NC 27699-1611
13b. Disinfection type: Amount:
Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 6-6-2018

Monitoring Well Construction Form
III a
S&ME Project: Marshall Well Replacements Project Number: 21410007, Ph. 02
Driller/Company: Justin Marlowe/Phenom Geotech
Well Installation Method: Hollow Stem Augers
WELL NO.
CLF22-307R
Drill Rig: Mobile B-57 (tracked)
Borehole Diameter (in.): 7.0
Start Date: 6/25/24
Northing (ft): 684435.19
Easting (ft): 1413298.66
Reference Point for Measurements: Below Ground Surface (BGS)
Completion Date: 6/25/24
Depth to Water (ft. BGS): 21.8
Date: 6/27/24
Height of casing stick-up above ground surface (ft):
3.2
DEPTH
Height of concrete pad above ground surface (in):
2.0
(in feet)
Concrete pad thickness (in): 4.0
Ground Surface (Elevation 8043)
0
Protective Surface Casing
Size (in): 4 x 4
Type: Steel
Bottom of Protective Surface Casing
1.8
Backfill Material
Riser Casing
Type: neat cement grout
Type: sch. 40 PVC
Dia (in): 2
Top of Annular Seal
15.0
Annular Seal
Type: bentonite pellets
Top of Filter Pack
17.0
Top of Screen
18.9
Screen Type
Dia (in): 2
Filter Pack
Type: sch. 40 PVC (pre -packed)
Type: no. 2 filter sand
Slot (in): 0.010
Bottom of Screen
28.9
Bottom of Sump
I 29.2
Bottom of Hole
I 29.2

Attachment IV - Boring Logs

PROJECT: Marshall Well Replacements
BORING LOG: CLF22-306R
Terrell, North Carolina
S&ME Project No. 21410007, Ph. 02
Sheet 1 of 1
DATE: 06/26/2024
ELEVATION: 814 ft
NOTES: Soils visually classified from auger
cuttings. No soil samples collected.
EQUIPMENT: Mobile B57
DATUM: NAVD88
OPERATOR: Justin Marlowe
DEPTH: 34.3 ft
HAMMER TYPE: Not Applicable
CLOSURE: Installed Observation Well
NORTHING: 684435.2 EASTING: 1413298.7
DRILLING METHOD: 4-1/4" HSA
LOGGED BY: J. Tayouga
SAMPLING METHOD: N/A PROJECT COORDINATE SYSTEM - NAD 1983 StatePlane North Carolina FiPS 320o Feet
r —
a v
NOTES
O 2
� z
=
a
SAMPLE NO.
BLOW COUNT
O
a
v
0
(RECOVERY)
MATERIAL DESCRIPTION
DATA
Well Details
a ;
(SPT N-value)
W Z
� W
W
0
SANDY SILT (ML), brownish red, non -
plastic fines, fine to medium grained sand,
micaceous [RES]
810
5
E
a)805
10
Neat Cement Grout (0.0' -
20.0' )
15.0
800
15
SILT (ML), brown to yellowish brown, non -
plastic fines, few fine grained sand,
micaceous [SAP]
795
20
Bentonite Seal (20.0' - 22.0')
2
o.
Vo
790
25
29 0
No. 2 Filter Sand (22.0' -
Rig
34.3')
785
SILTY SAND (SM), yellowish brown, pale
30
chatter
red and white, fine to coarse grained sand,
Screened Interval
3
d
non -plastic fines, micaceous [PWR]
(189' - 289')
34.3
35
Auger
780
Bore Hole terminated at 34.3 feet.
refusal
at 34.3
feet
775
40
GROUNDWATER DATE DEPTH(FT) REMARKS
ATD 4 06/26/2024 25.0
END OF DRILLING SIF
AFTER DRILLING = 06/27/2024 22.9
AFTER DRILLING = E
I I
GROUNDWATER DEPTHS ARE NOT EXACT AND MAY VARY SUBSTANTIALLY FROM THOSE INDICATED. ATD = AT TIME OF DRILLING
LL=Liquid Limit, PL = Plastic Limit, NMC = Natural Moisture Content, PPV = Pocket Penetrometer (tsf), PTV = Pocket Torvane (tsf)

PROJECT: Marshall Well Replacements
BORING LOG: CLF22-307R
Terrell, North Carolina
S&ME Project No. 21410007, Ph. 02
Sheet 1 of 1
DATE: 06/26/2024
ELEVATION: 804 ft
NOTES: Soils visually classified from auger
cuttings. No soil samples collected.
EQUIPMENT: Mobile B57
DATUM: NAVD88
OPERATOR: Justin Marlowe
DEPTH: 29.2 ft
HAMMER TYPE: Not Applicable
CLOSURE: Installed Observation Well
NORTHING: 685003.0 EASTING: 1413818.0
DRILLING METHOD: 4-1/4" HSA
LOGGED BY: J. Tayouga
SAMPLING METHOD: N/A PROJECT COORDINATE SYSTEM - NAD 1983 statePlane North Carolina FiPS 320o Feet
r —
a v
v
NOTES
O 2
� z
=
a
SAMPLE NO.
MATERIAL DESCRIPTION
BLOW COUNT
DATA
Well Details
O
a
0
a ;
(RECOVERY)
(SPT N-value)
W Z
� W
W
0
SILTY SAND (SM), reddish brown to red,
medium grained sand, non -plastic fines,
E
micaceous [RES]
�
800
5
7.5
Neat Cement Grout (0.0' -
SANDY SILT (ML), brownish red, white,
15.0')
non -plastic fines, fine to coarse grained
795
10
v
sand, micaceous [SAP]
0
Q
vn
790
15
16.0
Rig
Bentonite Seal (15.0' - 17.0')
SILTY SAND (SM), yellowish brown, white,
chatter/
red, medium to coarse grained sand, non -
hard
plastic fines, micaceous [PWR]
drilling 20.0
785
20
(16.0'
WELL -GRADED SAND WITH SILT (SW-SM),
20.0')
brown, fine to coarse grained sand, non -
plastic fines, micaceous [SAP]
EZ
No. 2 Filter Sand (17.0' -
0
292)
780
25
Q
;
V)
o
Screened Interval
(24.0' - 34.0')
28.5
29.2
775
a
WELL -GRADED SAND WITH SILT (SW-SM),
30
Auger
brown, fine to coarse grained sand, non -
refusal
plastic fines, micaceous [PWR]
at 29.2
Bore Hole terminated at 29.2 feet.
feet
770
35
765
40
GROUNDWATER DATE DEPTH(FT) REMARKS
ATD 4 06/26/2024 23.2
END OF DRILLING SIF
AFTER DRILLING = 06/26/2024 21.8
AFTER DRILLING = E
I I
GROUNDWATER DEPTHS ARE NOT EXACT AND MAY VARY SUBSTANTIALLY FROM THOSE INDICATED. ATD = AT TIME OF DRILLING
LL=Liquid Limit, PL = Plastic Limit, NMC = Natural Moisture Content, PPV = Pocket Penetrometer (tsf), PTV = Pocket Torvane (tsf)

Attachment V — Well Development Forms

WELL DEVELOPMENT FORM
Project Name: Marshall Well Replacements (June 2024)
5&ME Project No. 21410007, Ph. 02
Well ID: CLF-306R
Well Depth:
38.0
ft-btoc
Well Volume:
1.8
gal.
Development Date: 6/27/2024
Well Diameter:
2.0
inches
Screen Length:
10.0
ft.
Equipment used for Development:
Whale pump
3/8" poly tubing
Electronic water level meter
Turbidity Meter
Static Water Level:
26.9
ft-btoc
Total Purge Volume:
4.0
gal.
Weather Conditions: Intermittent rain, 85'
General Development Method(s): Placed pump approximately 1-foot off bottom of well. Moved pump up and
down during pumping to increase agitation and removal of silt/soil particles.
Date
Time
Method of Well
Evacuation
Purge
Volume
(gal)
Pumping
Rate
(gal/min)
Comments (e.g. clarity of water and success of development)
6/27/2024
10:00
Pump
2
-1
Slightly turbid at start of pumping, cleared up before going dry. Dry after
approximately 2 gallons pumped at 10:02.
6/27/2024
10:20
Pump
2
1
Recharged to 26.0 ft-btoc after 20 minutes, pumped 2 minutes before going dry.
Water was clear.
Turbidity measured at 78.4 NTU during second round of pumping
Notes:
ft-btoc Feet below top of casing
gal. Gallons
ft. Feet

WELL DEVELOPMENT FORM �.
Project Name: Marshall Well Replacements (June 2024)
5&ME Project No. 21410007, Ph. 02
Well ID: CLF-307R
Well Depth:
32.1
ft-btoc
Well Volume:
1.2
gal.
Development Date: 6/26/2024
Well Diameter:
2.0
inches
Screen Length:
10.0
ft.
Equipment used for Development:
Whale pump
3/8" poly tubing
Electronic water level meter
Turbidity Meter
Static Water Level:
25.0
ft-btoc
Total Purge Volume:
3.5
gal.
Weather Conditions: Sunny, 99'
General Development Method(s): Placed pump approximately 1-foot off bottom of well. Moved pump up and
down during pumping to increase agitation and removal of silt/soil particles.
Date
Time
Method of Well
Evacuation
Purge
Volume
(gal)
Pumping
Rate
(gal/min)
Comments (e.g. clarity of water and success of development)
6/26/2024
15:15
Pump
1.5
-1
Slightly turbid at start of pumping, cleared up before going dry. Dry after
approximately 1.5 gallons pumped at 15:17
6/26/2024
15:45
Pump
1
—1
Recharged to 28.0 ft-btoc after 30 minutes, pumped dry again. Water was clear.
Turbidity measured at 26.8 NTU during second round of pumping
Notes:
ft-btoc Feet below top of casing
gal. Gallons
ft. Feet