HomeMy WebLinkAboutWI0400551_More Information (Received)_20200812DUKE 526 South Church St
Mail Code EC13K
�. ENERGY,, Charlotte, NC 28202
CAROLINAS
August 12, 2020
Mr. Michael Rogers
N.C. Department of Environmental Quality
Division of Water Resources, UIC Program
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
Subject: Underground Injection Permit —Additional Information Request
UIC Permit No. WI0400551
Duke Energy Carolinas, LLC
Belews Creek Steam Station
Stokes County, NC
Mr. Michael Rogers,
Duke Energy Carolinas, LLC (Duke Energy) is submitting additional information pertaining to
UIC Permit No. WI0400551 that was requested by the North Carolina Department of
Environmental Quality (NCDEQ) in a letter dated July 13, 2020. This information supports the
initial application package, which was submitted on June 19, 2020, to obtain a permit to install
and operate up to 74 clean water infiltration wells at the Belews Creek Steam Station (BCSS),
located in Stokes County, North Carolina. The items listed in the above -referenced NCDEQ
letter are included below in bold/italic font, following by Duke Energy's response.
More detail is needed on how contaminants of interest (COIs) and unrelated
contaminants that may be present in surface water (e.g., PFAS/PFOAs) will be
monitored (including frequency) and reduced to prevent injection into the
subsurface that may result in exceedances of groundwater standards per 15A
NCAC 02L .0202.
Surface water proposed for clean water infiltration will be collected from a fire water force
main at the facility. Water in this force main originates from Belews Lake (see Figure D-2
of the UIC Permit Application) and is pumped into the facility near the Belews Creek
Steam Station. Once in the facility, the water passes through strainers prior to being sent
to the fire water system.
Samples are collected at least monthly from the fire water source main and analyzed for
select constituents, including site COls. To facilitate design of the clean water infiltration
treatment system, additional samples were collected from the fire water force main in
May and June 2020 and analyzed for: alkalinity, nitrate, inorganic anions, mercury,
metals, and other unrelated constituents including volatile organic compounds (VOCs),
semi -volatile organic compounds (SVOCs), polychlorinated biphenyls (PCBs), and
geochemical parameters. Results from these samples and a recent monthly fire water
force main sampling event (April 2020) are included as Attachment A of this
supplemental information request. As noted in the attachment, no constituents were
present at concentrations above their respective 02L groundwater standard. Additional
BUILDING A SMARTER ENERGY FUTURE""
August 12, 2020
Page 2
surface water sampling will be performed prior to initiation of pilot testing to verify that
potential constituents of interest are below applicable groundwater standards. Additional
sampling will include an evaluation of PFAS compounds (perfluorooctanoic acid [PFOA],
perfluorooctanesulfonic acid [PFOS], and perfluorobutanesulfonic [PFBS]). Table 1
summarizes the surface water sampling analysis and frequency. Duke Energy
emphasizes that PFAS, VOC, SVOC, and PCB compounds are unrelated to Duke
Energy and the operations and activities at the BCSS.
A sampling program will be conducted for the infiltration water during the course of
system operation in order to verify the continued compliance of constituents with the
applicable groundwater standards. An initial sample of all analytes listed above will be
collected from the fire water force main prior to the pilot system startup. During the first
six months of pilot and full system operation, a monthly sample of infiltration water will
be collected and analyzed for a reduced list of base compounds, including total alkalinity,
nitrate, inorganic ions, mercury (total and dissolved), dissolved metals, total metals,
geochemical parameters, and coliform. Unrelated site constituents, including PFAS, will
be monitored at NCDEQ's request; however, these constituents are unrelated to Duke
Energy and the operations and activities at the BCSS. Additional analysis of non -site
related compounds, including PFAS, VOCs, SVOCs, and PCBs, will be
performed quarterly during the first six months of pilot operation (Table 1). If
analytical results show consistent water quality below the applicable groundwater
standards, a reduced sampling program may be implemented for future operations.
2. More detail is needed on how injection pressures will be managed to avoid creating
preferential pathways.
Infiltration water will be applied at low pressures (estimated 5 to 50 psi) and pressure at
each well will be monitored at two locations: the infiltration manifold (located within four
system enclosures) and at the infiltration well. The infiltration manifold will include a
pressure transmitter that monitors the infiltration pressure at the manifold and will shut a
control valve if the pressure setpoint (user adjustable) is exceeded. Infiltration pressure
will also be monitored within the well using a down -well transducer. The down -well
transducer will primarily be used to monitor groundwater level within each infiltration well
but will also have the ability to close the manifold control valve if the pressure or
groundwater level setpoint (user adjustable) is exceeded. Along with these two
automated controls, the system manifold includes a diaphragm hand valve and a pre-set
Dole flow regulating valve to control the pressure and flow to each well. Table C-1 of the
UIC Permit Application has been updated to reflect the design maximum well head
pressure at each well and included as Attachment B of this supplemental information
request. Based on the anticipated relatively low infiltration pressures, the formation of
preferential pathways due to water infiltration is not anticipated.
3. There appears to be a discrepancy in the total number of injections proposed to be
installed — 74 wells in narrative, and 91 on Table listing the wells. Please confirm
the total number of wells. If any corrections are needed, please provide corrected
pages to replace in Application.
Infiltration and extraction well IDs are the result of multiple remediation well layout drafts. Well
IDs were not changed during the drafting process, resulting in non -sequential well IDs forthe final
design. Although there is an infiltration well IW-91, only 74 infiltration wells are proposed for full-
scale installation. Note that the infiltration well construction schematic (originally submitted as
August 12, 2020
Page 3
Attachment B of the UIC Permit Application) has been updated to reflect recent design changes
and is included as Attachment C of this supplemental information request.
4. Please provide well schematic for extraction wells.
The extraction well schematic is attached as Attachment D of this document.
5. Please provide an interim report discussing results of Phase 1 for review prior to
implementation of full-scale Phase 2 injection.
Duke Energy will submit a pilot test (Phase 1) report after startup (detailing pilot test
installation, system startup, and preliminary system data) as originally proposed in the
Pilot Test Work Plan submitted to NCDEQ on June 23, 2020. A copy of this report will
be provided to the NCDEQ Division of Water Resources, UIC Program for review prior
to implementation of full-scale remediation (Phase 2).
6. Variances are needed for the extraction wells and the infiltration wells as the wells
will be screened across three water bearing zones. Attached you will find variance
request forms to complete and submit electronically. For the attachments section
of the request forms, you may reference figures in the UIC permit application, if
applicable.
A Variance Application for Well Construction Standards - Underground Injection Control
Well [UIC] Under 15A NCAC O2C.0200 is included for the all proposed infiltration wells
as Attachment E of this supplemental information request. Note that Figure D-3 of the
UIC Permit Application has been updated with the modeled boron plume to meet the
requirements outlined in the variance application and included as Figure E-1 of this
supplemental information request.
A Variance Application for Well Construction Standards - Wells Other Than Water Supply
Under 15A NCAC 02C .0108 is included for the proposed pilot test (Phase 1) extraction
wells as Attachment F of this supplemental information request. Figure F-1 includes
the locations of pilot test extraction wells to meet the requirements outlined in the
variance application. A separate variance application will be submitted for full-scale
(Phase 2) extraction wells prior to installation.
August 12, 2020
Page 4
Referenced attachments are provided for your review and approval. We appreciate the
NCDEQ's timely review of this submittal package as we proactively implement the groundwater
remediation strategy for this Site. Please contact Mr. Andrew Shull (919.546.2104) or Mr. Scott
Davies (980.373.6563) with any questions or concerns regarding this application.
Sincerely,
Scott E. Davies, P.G.
Project Director
cc: Rick Bolich, NCDEQ
Steve Lanter, NCDEQ
Eric Smith, NCDEQ
deq.coalash@ncdenr.gov
Ed Sullivan, Duke Energy
John Toepfer, Duke Energy
Andrew Shull, Duke Energy
Melonie Martin, Duke Energy
Matthew Allen, AECOM
Bob Wyrick, AECOM
Attachments
Table 1 — Clean Water Infiltration Source Monitoring Plan
Attachment A —Summary of Infiltration Water Source (Belews Lake) Analytical Results
Attachment B —Infiltration System Design Parameters (Updated Table C-1 of the UIC Permit
Application)
Attachment C —Infiltration Well Construction Specifications (Updated Attachment B of the UIC
Permit Application)
Attachment D —Extraction Well Construction Specifications
Attachment E —Variance Application for Well Construction Standards: Underground Injection
Control Well (UIC) Under 15A NCAC 02C .0200
Figure E-1 — Clean Water Infiltration Well Area (Updated Figure D-3 of the UIC
Permit Application)
Attachment F —Variance Application for Well Construction Standards: Wells Other Than Water
Supply Under 15A NCAC 02C .0108
Figure F-1 — Pilot Test Extraction Well Locations
Table
Clean Water Infiltration Source Monitoring Plan
Table 1
Clean Water Infiltration Source Monitoring Plan
Pilot Test Monitoring Plan
Duke Energy - Belews Creek Steam Station
Belews Creek, North Carolina
SampleConstituent Pre -Startup
Total
(—April - December)
Monthly •
Alkalinity, Bicarbonate x
x
Alkalinity, Carbonate
x
x
Total Alkalinity as CaCO3
Nitrate •A 353.2,
x
EPA
x
Nitrite + Nitrate Colorimetric
.
x
x
Total Phosphorus (Colorimetric)
Inorganic•A
x
00.0
x
Chloride
x
x
Fluoride
x
x
Sulfate
x
x
Sulfide
Site COls [Dissolved and Total
Lithium
x
Metals (by ICP EPA
x
x
200.7)]
x
Cobalt
x
x
Manganese
x
x
Thallium
x
x
Beryllium
x
x
Strontium
I x
I x
CAP Excluded COls [Dissolved and
Antimony
Total Metals (by ICP
x
EPA 200.7)]
x
Barium
x
x
Chromium and Hexavalent Chromium 3500Cr B-2011
x
x
Molybdenum
x
x
Vanadium
Dissolved and ..
x
x
Aluminum
x
x
Calcium
x
x
Iron
x
x
Magnesium
x
x
Potassium
x
x
Sodium
Mercury
I x
• • 245.1)
x
Mercury
Geochernical
x
Parameters
x
H
x
x
Oxidation -Reduction Potential
x
x
Dissolved Oxygen (DO)
x
x
Specific Conductivity
x
x
Total Dissolved Solids
x
x
Total Suspended Solids
x
x
Total Organic Carbon
x
x
Biological Oxygen Demand
x
x
Total Hardness
x
x
Ferrous Iron
x
x
Ferric Iron
I x
I x
Bacterial Counts (biofouling)
I x
I x
Page 1 of 2
Table 1
Clean Water Infiltration Source Monitoring Plan
Pilot Test Monitoring Plan
Duke Energy - Belews Creek Steam Station
Belews Creek, North Carolina
Constituent 2021
Sample
2021
A. December)
Unrelated Site ConstituentSb
Total PCBs (EPA 8082) x
x
Pesticides EPA 8081
x
x
Lead and Silver (200.7/245.1)
x
x
VOCs EPA 8260
x
x
SVOCs (EPA 8270)
x
x
PFAS EPA 537.1 aqueous)
x
x
Perfluorooctanesulfonic acid PFOS
x
x
Perfluoro-n-octanoic acid PFOA
x
x
Perfluoro-1-butanesulfonic acid (PFBS)
x
x
Notes:
a If analytical results show consistent water quality below the applicable groundwater standards, a reduced sampling
program may be implemented for future operations.
b Unrelated site constituents will be monitored, including select PFAS compounds, at NCDEQ's request. These
constituents are unrelated to Duke Energy and the operations and activities at the Belews Creek Steam Station.
PFAS = per- and polyfluoroalkyl substances
PCB = polychlorinated biphenyl
SVOC = semi -volatile organic compound
VOC = volatile organic compound
Page 2 of 2
Attachment A
Summary of Infiltration Water Source (Belews Lake)
Analytical Results
Attachment A
Summary of Infiltration Water Source (Belews Lake) Analytical Results
Belews Creek Steam Station
Belews Creek, North Carolina
Constituent
Analysis Method
Units
Sample Date
2L Standard
Results
Nitrite + Nitrate (Colorimetric)
EPA 353.2
mg-N/L
4/14/2020
--
0.32
Chloride
EPA 300.0
mg/L
4/14/2020
250
5.73
Bromide
EPA 300.0
mg/L
4/14/2020
--
< 0.1
Boron (B)
EPA 200.7
mg/L
4/14/2020
0.7
0.069
Zinc (Zn)
EPA 200.8
Ng/L
4/14/2020
1,000
12.5
Selenium (Se)
EPA 200.8
Ng/L
4/14/2020
20
< 1
Nickel (Ni)
EPA 200.8
Ng/L
4/14/2020
100
< 1
Copper (Cu)
EPA 200.8
Ng/L
4/14/2020
1000
1.14
Chromium (Cr)
EPA 200.8
Ng/L
4/14/2020
10
< 1
Cadmium Cd
EPA 200.8
/L
4/14/2020
2
< 1
Arsenic (As)
EPA 200.8
Ng/L
4/14/2020
10
< 1
Mercury (Hg)
BAL-SOP
ng/L
4/14/2020
1,000
1.23
4-Nitroaniline
EPA 8270E
/L
5/28/2020
--
< 3.1
Bromoform
EPA 8260D
Ng/L
5/28/2020
4
< 0.62
Radium-228
EPA 904.0
pCi/L
5/28/2020
--
< 0.857
Endrin
EPA 8081 B
/L
5/28/2020
2
< 0.0089 L1
Benzene
EPA 8260D
/L
5/28/2020
1
< 0.15
Radium-226
EPA 903.1
Ci/L
5/28/2020
--
< 0.911
PCB-1254 Aroclor 1254
EPA 8082A
/L
5/28/2020
--
< 0.24
Endrin ketone
EPA 8081 B
/L
5/28/2020
2
< 0.0062
1,2,3-Trichlorobenzene
EPA 8260D
/L
5/28/2020
--
< 0.34
Di-n-but I phthalate
EPA 8270E
/L
5/28/2020
--
< 1.6
2-Hexanone
EPA 8260D
/L
5/28/2020
--
< 0.57
Hexachloro-1,3-butadiene
EPA 8260D
/L
5/28/2020
--
< 0.44
1,3-Dichloro ro ane
EPA 8260D
/L
5/28/2020
--
< 0.16
2,4-Dichloro henol
EPA 8270E
/L
5/28/2020
--
< 1.5
Eth (benzene
EPA 8260D
/L
5/28/2020
600
< 0.26
33-Dichlorobenzidine
EPA 8270E
/L
5/28/2020
--
< 2.7
Bromobenzene
EPA 8260D
/L
5/28/2020
--
< 0.22
1,3-Dichlorobenzene
EPA 8260D
/L
5/28/2020
200
< 0.22
Iron, Ferrous
SM 3500-Fe B-2011
m /L
5/28/2020
0.3
< 0.084
N-Nitrosodi hen famine
EPA 8270E
/L
5/28/2020
--
< 1.4
1,1-Dichloroethene
EPA 8260D
/L
5/28/2020
--
< 0.24
Hexachloroethane
EPA 8270E
/L
5/28/2020
--
< 1.3
2-Methyl naphthalene
EPA 8270E
Ng/L
5/28/2020
30
< 1.4
2,2-Dichloro ro ane
EPA 8260D
/L
5/28/2020
--
< 0.27
Phenol
EPA 8270E
Ng/L
5/28/2020
30
2.8 J
beta-BHC
EPA 8081 B
/L
5/28/2020
--
< 0.014
P rene
EPA 8270E
/L
5/28/2020
200
< 1.5
o-X lene
EPA 8260D
/L
5/28/2020
500
< 0.22
Aniline
EPA 8270E
/L
5/28/2020
--
< 1.6
Dimethyl phthalate
EPA 8270E
/L
5/28/2020
--
< 1.4
PCB-1242 Aroclor 1242
EPA 8082A
/L
5/28/2020
--
< 0.44
1,1,2-Trichloroethane
EPA 8260D
/L
5/28/2020
--
< 0.24
trans-1,3-Dichloro ro ene
EPA 8260D
/L
5/28/2020
0.4
< 0.31
Chloromethane
EPA 8260D
/L
5/28/2020
3
< 0.39
Pentachloro henol
EPA 8270E
/L
5/28/2020
0.3
< 2.8
2-Chlorona hthalene
EPA 8270E
/L
5/28/2020
--
< 1.4
Dieth I hthalate
EPA 8270E
/L
5/28/2020
6,000
< 1.6
1,4-Dichlorobenzene
EPA 8260D
/L
5/28/2020
6
< 0.26
Styrene
EPA 8260D
/L
5/28/2020
70
< 0.27
Fluoranthene
EPA 8270E
/L
5/28/2020
300
< 1.6
Chlordane Technical
EPA 8081 B
/L
5/28/2020
0.1
< 0.14
Attachment A
Summary of Infiltration Water Source (Belews Lake) Analytical Results
Belews Creek Steam Station
Belews Creek, North Carolina
Constituent
Analysis Method
Units
Sample Date
2L Standard
Results
1,2-Dichlorobenzene
EPA 8260D
Ng/L
5/28/2020
20
< 0.29
m&p-Xylene
EPA 8260D
Ng/L
5/28/2020
500
< 0.41
1,4-Dichlorobenzene
EPA 8270E
Ng/L
5/28/2020
6
< 1.5
Butylbenzylphthalate
EPA 8270E
Ng/L
5/28/2020
1,000
< 1.9
2,4-Dinitrotoluene
EPA 8270E
Ng/L
5/28/2020
--
< 1.7
Benzyl alcohol
EPA 8270E
Ng/L
5/28/2020
--
< 2.6
Benzo(k)fluoranthene
EPA 8270E
Ng/L
5/28/2020
0.5
< 1.5
4,6-Dinitro-2-methyl phenol
EPA 8270E
Ng/L
5/28/2020
--
< 4.5
Dibenzofuran
EPA 8270E
Ng/L
5/28/2020
--
< 1.3
al ha-BHC
EPA 8081 B
/L
5/28/2020
--
< 0.019
cis-1,3-Dichloropropene
EPA 8260D
Ng/L
5/28/2020
0.4
< 0.30
1-Methyl naphthalene
EPA 8270E
Ng/L
5/28/2020
--
< 1.4
Iron, Ferric
SM 3500-Fe D#4
m /L
5/28/2020
0.3
< 0.25
gamma-BHC (Lindane)
EPA 8081 B
Ng/L
5/28/2020
0.03
< 0.012
2,4,6-Trichlorophenol
EPA 8270E
Ng/L
5/28/2020
--
< 1.4
2,4,5-Trichloro henol
EPA 8270E
/L
5/28/2020
--
< 1.5
1,2,4-Trichlorobenzene
EPA 8260D
/L
5/28/2020
70
< 0.22
Di-n-oct I phthalate
EPA 8270E
/L
5/28/2020
100
< 2.2
1,2-Dibromoethane EDB
EPA 8260D
/L
5/28/2020
--
< 0.26
Toluene
EPA 8260D
/L
5/28/2020
600
< 0.24
bis 2-Chloroeth I ether
EPA 8270E
/L
5/28/2020
0.03
< 1.7
1,2,4-Trichlorobenzene
EPA 8270E
/L
5/28/2020
70
< 1.6
PCB-1016 Aroclor 1016
EPA 8082A
/L
5/28/2020
--
< 0.22
1,2,3-Trichloro ro ane
EPA 8260D
/L
5/28/2020
0.005
< 0.35
bis(2-Ethylhexyl)phthalate
EPA 8270E
Ng/L
5/28/2020
3
2.6 J
Dibenzo a,h anthracene
EPA 8270E
/L
5/28/2020
0.005
< 1.6
Anthracene
EPA 8270E
/L
5/28/2020
2,000
< 1.6
Meth I-tert-but I ether
EPA 8260D
/L
5/28/2020
20
< 0.28
Indeno 1,2,3-cd rene
EPA 8270E
/L
5/28/2020
0.05
< 1.7
bis 2-Chloroethox methane
EPA 8270E
/L
5/28/2020
--
< 1.3
BOD, 5 day
SM 5210B-2011
m /L
5/28/2020
--
< 2.0
Hexachlorobenzene
EPA 8270E
/L
5/28/2020
0.02
< 1.3
2,4-Dinitrophenol
EPA 8270E
Ng/L
5/28/2020
--
< 7.3
Chloroethane
EPA 8260D
/L
5/28/2020
3,000
< 0.49
Benzoic Acid
EPA 8270E
/L
5/28/2020
30,000
< 19.5
Acetone
EPA 8260D
Ng/L
5/28/2020
6,000
< 6.2
Dibromochloromethane
EPA 8260D
/L
5/28/2020
0.4
< 0.41
Trichlorofluoromethane
EPA 8260D
/L
5/28/2020
2,000
< 0.31
Chlorobenzene
EPA 8260D
/L
5/28/2020
50
< 0.23
3&4-Methyl henol m& Cresol
EPA 8270E
/L
5/28/2020
400/40
< 1.2
1,1,2,2-Tetrachloroethane
EPA 8260D
/L
5/28/2020
0.2
< 0.22
Chloroform
EPA 8260D
/L
5/28/2020
70
< 2.3
Hexachlorobenzene
EPA 8081 B
/L
5/28/2020
0.02
< 0.030
Aldrin
EPA 8081 B
/L
5/28/2020
--
< 0.022
Heptachlor epoxide
EPA 8081 B
/L
5/28/2020
0.004
< 0.0097
Vinyl chloride
EPA 8260D
/L
5/28/2020
0.03
< 0.24
4,4'-DDD
EPA 8081 B
/L
5/28/2020
0.1
< 0.0069
2-Butanone MEK
EPA 8260D
/L
5/28/2020
4,000
< 3.3
Bromomethane
EPA 8260D
/L
5/28/2020
--
< 0.62
1,3-Dichlorobenzene
EPA 8270E
/L
5/28/2020
200
< 1.4
Endrin aldehyde
EPA 8081 B
/L
5/28/2020
2
< 0.013
Endosulfan I
EPA 8081 B
I pg/L
5/28/2020
40
< 0.0094
Dibromomethane
EPA 8260D
I pg/L
5/28/2020
--
I < 0.46
Attachment A
Summary of Infiltration Water Source (Belews Lake) Analytical Results
Belews Creek Steam Station
Belews Creek, North Carolina
Constituent
Analysis Method
Units
Sample Date
2L Standard
Results
p-Isopropyltoluene
EPA 8260D
Ng/L
5/28/2020
--
< 0.21
Acenaphthene
EPA 8270E
Ng/L
5/28/2020
80
< 1.4
4,4'-DDE
EPA 8081 B
Ng/L
5/28/2020
--
< 0.0064
Vinyl acetate
EPA 8260D
Ng/L
5/28/2020
--
< 1.4
3-Nitroaniline
EPA 8270E
Ng/L
5/28/2020
--
< 2.8
Mirex
EPA 8081 B
Ng/L
5/28/2020
--
< 0.024
1,1-Dichloropropene
EPA 8260D
Ng/L
5/28/2020
--
< 0.21
4-Methyl-2-pentanone (MIBK)
EPA 8260D
Ng/L
5/28/2020
--
< 4.5
Phenanthrene
EPA 8270E
Ng/L
5/28/2020
200
< 1.4
4-Chloroaniline
EPA 8270E
/L
5/28/2020
--
< 2.8
Benzo(b)fluoranthene
EPA 8270E
Ng/L
5/28/2020
0.05
< 1.7
Benzo(g,h,i)perylene
EPA 8270E
Ng/L
5/28/2020
200
< 1.6
Endosulfan 11
EPA 8081 B
/L
5/28/2020
40
< 0.0065
Heptachlor
EPA 8081 B
Ng/L
5/28/2020
0.008
< 0.016
2-Chlorophenol
EPA 8270E
Ng/L
5/28/2020
0.4
< 1.4
Benzo a anthracene
EPA 8270E
/L
5/28/2020
0.05
< 1.5
2,2'-Ox bis 1-chloro ro ane
EPA 8270E
/L
5/28/2020
--
< 1.3
Total Radium
Total Radium Calculation
Ci/L
5/28/2020
--
< 1.77
X Iene Total
EPA 8260D
/L
5/28/2020
500
< 0.63
4-Chlorotoluene
EPA 8260D
/L
5/28/2020
--
< 0.20
Trichloroethene
EPA 8260D
/L
5/28/2020
3
< 0.22
Methylene Chloride
EPA 8260D
/L
5/28/2020
5
< 3.7
1,2-Dichloro ro ane
EPA 8260D
/L
5/28/2020
0.6
< 0.19
N-Nitroso-di-n- ro (amine
EPA 8270E
/L
5/28/2020
--
< 1.3
Benzo a rene
EPA 8270E
/L
5/28/2020
0.005
< 1.8
Chr sene
EPA 8270E
/L
5/28/2020
5
< 1.4
4,4'-DDT
EPA 8081 B
/L
5/28/2020
0.1
< 0.018
trans-1,2-Dichloroethene
EPA 8260D
/L
5/28/2020
100
< 0.25
Iso horone
EPA 8270E
/L
5/28/2020
40
< 1.3
Fluorene
EPA 8270E
/L
5/28/2020
300
< 1.4
4-Nitrophenol
EPA 8270E
/L
5/28/2020
--
< 9.4
4-Chloro-3-meth I phenol
EPA 8270E
/L
5/28/2020
--
< 2.8
Dieldrin
EPA 8081 B
/L
5/28/2020
0.002
< 0.0073
Bromochloromethane
EPA 8260D
/L
5/28/2020
--
< 0.34
Hexachlorocyclopentadiene
EPA 8270E
Ng/L
5/28/2020
--
< 2.4
PCB-1260 Aroclor 1260
EPA 8082A
/L
5/28/2020
--
< 0.30
PCB-1221 Aroclor 1221
EPA 8082A
/L
5/28/2020
--
< 0.32
Bromodichloromethane
EPA 8260D
/L
5/28/2020
0.6
< 0.26
1,1-Dichloroethane
EPA 8260D
/L
5/28/2020
6
< 0.27
1,1,1-Trichloroethane
EPA 8260D
/L
5/28/2020
200
< 0.18
Naphthalene
EPA 8260D
/L
5/28/2020
6
< 0.35
2,4-Dimethyl phenol
EPA 8270E
/L
5/28/2020
100
< 1.5
Endosulfan sulfate
EPA 8081 B
/L
5/28/2020
40
< 0.0091
Carbon tetrachloride
EPA 8260D
/L
5/28/2020
0.3
< 0.22
2-Nitroaniline
EPA 8270E
/L
5/28/2020
--
< 3.0
PCB-1232 Aroclor 1232
EPA 8082A
/L
5/28/2020
--
< 0.21
1,2-Dichloroethane
EPA 8260D
/L
5/28/2020
0.4
< 0.34
Chromium, Hexavalent
EPA 218.7 Rev 1.0 2011
Ng/L
5/28/2020
10
0.044
2-Nitrophenol
EPA 8270E
/L
5/28/2020
--
< 1.7
Diisopropyl ether
EPA 8260D
/L
5/28/2020
--
< 0.22
2-Meth I henol o-Cresol
EPA 8270E
/L
5/28/2020
--
< 1.2
Hexachloro-1,3-butadiene
EPA 8270E
I pg/L
5/28/2020
--
< 1.6
2,6-Dinitrotoluene
EPA 8270E
I pg/L
5/28/2020
--
< 1.7
Attachment A
Summary of Infiltration Water Source (Belews Lake) Analytical Results
Belews Creek Steam Station
Belews Creek, North Carolina
Constituent
Analysis Method
Units
Sample Date
2L Standard
Results
delta-BHC
EPA 8081 B
Ng/L
5/28/2020
--
< 0.020
Toxaphene
EPA 8081 B
Ng/L
5/28/2020
0.03
< 0.19
1,1,1,2-Tetrachloroethane
EPA 8260D
Ng/L
5/28/2020
--
< 0.34
1,2-Dichlorobenzene
EPA 8270E
Ng/L
5/28/2020
20
< 1.4
Dichlorodifluoromethane
EPA 8260D
Ng/L
5/28/2020
1,000
< 0.23
1,2-Dibromo-3-chloropropane
EPA 8260D
Ng/L
5/28/2020
0.04
< 0.26
Acenaphthylene
EPA 8270E
Ng/L
5/28/2020
200
< 1.5
4-Bromophenylphenyl ether
EPA 8270E
Ng/L
5/28/2020
--
< 1.2
cis-1,2-Dichloroethene
EPA 8260D
Ng/L
5/28/2020
70
< 0.29
Nitrobenzene
EPA 8270E
/L
5/28/2020
--
< 1.5
PCB-1248 (Aroclor 1248)
EPA 8082A
Ng/L
5/28/2020
--
< 0.34
Tetrachloroethene
EPA 8260D
Ng/L
5/28/2020
0.7
< 0.16
Naphthalene
EPA 8270E
/L
5/28/2020
6
< 1.6
2-Chlorotoluene
EPA 8260D
Ng/L
5/28/2020
100
< 0.20
4-Chlorophenylphenyl ether
EPA 8270E
Ng/L
5/28/2020
--
< 1.5
N-Nitrosodimeth famine
EPA 8270E
/L
5/28/2020
0.0007
< 1.8
Methox chlor
EPA 8081 B
/L
5/28/2020
40
< 0.033
Total Alkalinity as CaCO3
SM 2320B-2011
mg/L
5/28/2020
--
23.1
Alkalinity, Carbonate
SM 2320B-2011
m /L
5/28/2020
--
< 5
Alkalinity, Bicarbonate
SM 2320B-2011
mg/L
5/28/2020
--
23.1
Total Phosphorus (Colorimetric)
EPA 365.1
mg-P/L
5/28/2020
--
0.01
Sulfate
EPA 300.0
mg/L
5/28/2020
250
5.8
Fluoride
EPA 300.0
m /L
5/28/2020
2
< 0.1
Total Hardness (Ca and Mg)
EPA 200.7
mg/L (CaCO3)
5/28/2020
--
24.2
Strontium (Sr)
EPA 200.7
mg/L
5/28/2020
--
0.053
Sodium (Na)
EPA 200.7
mg/L
5/28/2020
--
5
Potassium (K)
EPA 200.7
mg/L
5/28/2020
--
2.88
Manganese (Mn)
EPA 200.7
mg/L
5/28/2020
0.05
0.009
Magnesium (Mg)
EPA 200.7
mg/L
5/28/2020
--
2.62
Lithium Li
EPA 200.7
m /L
5/28/2020
--
< 0.005
Iron (Fe)
EPA 200.7
mg/L
5/28/2020
0.3
0.171
Calcium (Ca)
EPA 200.7
mg/L
5/28/2020
--
5.35
Barium (Ba)
EPA 200.7
mg/L
5/28/2020
0.7
0.018
Aluminum (Al)
EPA 200.7
mg/L
5/28/2020
--
0.174
Vanadium (V) Low Level
EPA 200.8
Ng/L
5/28/2020
--
0.645
Silver A Low Level
EPA 200.8
/L
5/28/2020
20
< 0.3
Molybdenum Mo
EPA 200.8
/L
5/28/2020
--
< 1
Lead Pb Low Level
EPA 200.8
/L
5/28/2020
15
< 0.2
Cobalt Co
EPA 200.8
/L
5/28/2020
--
< 1
Beryllium Be
EPA 200.8
/L
5/28/2020
--
< 1
Antimony Sb
EPA 200.8
/L
5/28/2020
--
< 1
TDS
SM2540C
mg/L
5/28/2020
--
72.0
TOC
SM5310C/EPA9060A
mg/L
5/28/2020
--
2.8
Notes:
pg/L = Micrograms per liter
mg/L = Milligrams per liter
pCi/L = Picocuries per liter
J = Estimated concentration above the adjusted method detection limit and below the reporting limit
Bold = compound detected
2L Standard = 15A NCAC 2L .0202 Groundwater Standard (2013)
-- = No applicable 15A NCAC 02L .0202 Groundwater Standard
Attachment B
Infiltration System Design Parameters
(Updated Table C-1 of the UIC Permit Application)
Table C-1
Infiltration System Design Parameters
Belews Creek Steam Station
Belews Creek, North Carolina
Estimated Flow
Estimated Flow
Design Pressure at
Maximum Pressure at
Injection Temperature,
Injection Temperature,
Well ID
(gpm)
(gpd)
Well Head (psi)'
Well Head (psi)'
January (°F)2
July (°F)2
Individual Infiltration Wells
1.5 - 2.5
2,160 - 3,600
5
50
58
82
Phase 1
36.8
52,992
5
50
58
82
Pilot -Scale System)
Phase 2
120.5
173,520
5
50
58
82
Full -Scale System)
Notes and Abbreviations
1. The design well head pressure to achieve the modeled clean water infiltration flow rate at each well (between 1.5 and 2.5 gpm) is approximately 5 psi. However,
higher well head pressures may be necessary to achieve the modeled flow rates. Well head pressures are not anticipated to exceed 50 psi or create preferential
pathways.
2. Infiltration temperatures based off the Water Temperature Table of the Southern Atlantic Coast (Wilmington, NC) provided by the National Centers for Environmental
Information, National Oceanic and Atmospheric Administration.
-- = Not applicable
°F = Degrees Fahrenheit
gpd = gallons per day
gpm = Gallons per minute
psi = pounds per square inch
Attachment C
Infiltration Well Construction Specifications
(Updated Attachment B of the UIC Permit Application)
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NATIVE SOIL
1 IN HDPE DROP PIPE
-
6 IN CASING
10 IN BOREHOLE
BENTONITE GROUT
BENTONITE SEAL
FILTER PACK SILICA SAND (20/30)
1 IN HDPE TRANSITION FITTING
1 IN SPRING LOADED CHECK VALVE
PRESSURE TRANSDUCER
(DEPTH VARIES)
6 IN 304L SS WIRE -WRAPPED SCREEN (0.010
IN SLOT) THREADED ONTO CASING FOR
RISER
FLAT BOTTOM SS THREADED PLUG AT
BOTTOM OF SCREEN
0
C
® .I
i
1
1
1
1
1
1
1
i
1
1
1
1
1
1
1
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PITLESS ADAPTOR REMOVAL TOOL
(TEMPORARY INSTALL DURING PUMP
MAINTENANCE EVENTS)
ALUMINUM SANITARY WELL
CAP WITH SEAL, TYP
1.5 IN STILLING WELL
STONE GRAVEL PAD
(#57 STONE)
1 IN 304L SS PITLESS
ADAPTOR
1 IN 304L SS UNION
1 IN HDPE TRANSITION FITTING
U
NATIVE SOIL
TYPICAL INFILTRATION WELL DETAIL
NOT TO SCALE
U_
w
0
NOTES:
1. ALL DEPTHS ARE APPROXIMATED AND MAY CHANGE DEPENDING ON SITE CONDITIONS.
2. FLOWRATES ARE AVERAGE FLOWRATES FROM SIMULATIONS AND APPROXIMATE AND MAY CHANGE DEPENDING ON SITE CONDITIONS.
3. OPERATIONAL WATER LEVELS ARE APPROXIMATE AND MAY CHANGE DEPENDING ON SITE CONDITIONS.
4. IN - INCH
5. FT - FEET
6. FT BGS - FEET BELOW GROUND SURFACE
7. GPM - GALLONS PER MINUTE
8. NA - NOT APPLICABLE
9. TYP - TYPICAL
10. EASTING AND NORTHING PROJECTED IN NAD 83 - NORTH AMERICAN DATUM 1983
11. ELEVATIONS IN NAVD 88 - NORTH AMERICAN VERTICAL DATUM OF 1988
12. WELL CASING SHALL BE SCHEDULE 40 PVC (FOR WELLS LESS THAN 130 FT BGS), SCHEDULE 80 PVC (FOR WELLS GREATER THAN 130 FT
BGS), CARBON STEEL OR STAINLESS STEEL.
13. A BENTONITE SEAL SHALL BE INSTALLED ABOVE THE TOP OF THE FILTER PACK AND CONSIST OF AT LEAST 3 FT OF BENTONITE PELLETS,
CHIPS OR ENGINEER APPROVED SLURRY.
14. A BOREHOLE ANNULUS BETWEEN THE BENTONITE SEAL AND THE GROUND SURFACE SHALL BE FILLED WITH A BENTONITE-CEMENT
SLURRY MIXED IN THE FOLLOWING RATIO: 50 LBS PORTLAND CEMENT, 2.5 LBS POWDERED BENTONITE AND NO MORE THAN 5 GALLONS
OF WATER.
Vertical Infiltration
Wells
Well ID
Fasting
(NAD 83)
Northing
(NAD 83)
Approximate Ground
Surface Elevation
Before Grading
(feet, NAVD 88)
Well
Depth before
Grading
(ft BGS)
Final Ground
Surface Elevation
After Grading
(feet, NAVD 88)
Well
Depth after
Grading
(ft BGS)
Pressure at Well
Head
(ft of Head Above
Ground Surface)
Screen
Bottom
(ft BGS)
Screen Top
(ft BGS)
Screen
Length
(ft)
Filter Pack
Top (ft
BGS)
Drop Pipe
Depth (ft
BGS)
Well Construction
Details
Targeted Flow Zones
Approximate
Simulated Flow
(gpm)
A
(in)
B
(ft)
C
(ft)
D
(ft)
E
(ft)
F
(in)
G
(ft)
IW-28
1681265.12
928476.59
760
170
758
168
10
168
148
20
35
163
6
20
133
3
32
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-30
1681271.50
928490.30
760
170
758
168
10
168
148
20
35
163
6
20
133
3
32
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-31
1681283.10
928508.33
756
165
757
167
10
167
147
20
31
162
6
20
136
3
28
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-33
1681294.40
928524.50
749
160
757
169
10
169
149
20
24
164
6
20
145
3
21
18
169
Saprolite/Transition Zone/Bedrock
1.6
IW-35
1681302.14
928537.95
748
160
757
169
10
169
149
20
23
164
6
20
146
3
20
18
169
Saprolite/Transition Zone/Bedrock
1.6
IW-38
1681312.20
928552.20
751
160
757
165
10
165
145
20
26
160
6
20
139
3
23
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-39
1681319.07
928565.45
754
165
756
168
10
168
148
20
29
163
6
20
139
3
26
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-44
1681333.90
928582.40
756
165
756
165
10
165
145
20
31
160
6
20
134
3
28
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-45
1681336.10
928636.60
757
170
754
168
10
168
148
20
32
163
6
20
136
3
29
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-48
1681345.52
928602.48
761
170
756
165
10
165
145
20
36
160
6
20
129
3
33
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-51
1681356.10
928618.30
761
170
756
164
10
164
144
20
36
159
6
20
128
3
33
18
164
Saprolite/Transition Zone/Bedrock
1.6
IW-53
1681357.10
928676.20
759
170
759
170
10
170
150
20
24
165
6
20
146
3
21
18
170
Saprolite/Transition Zone/Bedrock
1.6
IW-54
1681365.61
928634.21
761
170
755
164
10
164
144
20
24
159
6
20
140
3
21
18
164
Saprolite/Transition Zone/Bedrock
1.6
IW-59
1681375.10
928649.00
765
175
755
166
10
166
146
20
24
161
6
20
142
3
21
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-62
1681386.77
928662.77
765
175
755
165
10
165
145
20
24
160
6
20
141
3
21
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-63
1681399.50
928683.90
766
175
755
165
10
165
145
20
24
160
6
20
141
3
21
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-65
1681411.10
928700.86
766
175
756
165
10
165
145
20
24
160
6
20
141
3
21
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-67
1681426.97
928729.42
764
175
755
167
10
167
147
20
24
162
6
20
143
3
21
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-68
1681439.32
928749.31
763
175
755
166
10
166
146
20
24
161
6
20
142
3
21
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-69
1681446.01
928763.27
759
175
754
170
10
170
150
20
24
165
6
20
146
3
21
18
170
Saprolite/Transition Zone/Bedrock
1.6
IW-70
1681457.82
928775.31
759
175
754
170
10
170
150
20
24
165
6
20
146
3
21
18
170
Saprolite/Transition Zone/Bedrock
1.6
IW-71
1681469.52
928791.21
761
175
754
168
10
168
148
20
24
163
6
20
144
3
21
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-72
1681480.42
928810.51
757
175
755
173
10
173
153
20
24
168
6
20
149
3
21
18
173
Saprolite/Transition Zone/Bedrock
1.6
IW-3
1680930.33
928284.42
753
25
753
25
10
25
15
10
TBD
20
6
10
TBD
3
TBD
18
25
Saprolite
2.5
IW-4
1680995.14
927999.99
746
30
746
30
10
30
10
20
TBD
25
6
20
TBD
3
TBD
18
30
Saprolite
2.5
IW-6
1681017.70
928681.20
751
170
751
170
10
170
150
20
TBD
165
6
20
TBD
3
TBD
18
170
Saprolite/Transition Zone/Bedrock
1.6
IW-7
1681040.04
928170.39
763
35
763
35
10
35
15
20
TBD
30
6
20
TBD
3
TBD
18
35
Saprolite
2.5
IW-9
1681072.10
928760.60
743
165
743
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-10
1681103.80
928554.50
768
180
768
180
10
180
160
20
TBD
175
6
20
TBD
3
TBD
18
180
Saprolite/Transition Zone/Bedrock
1.6
IW-12
1681133.40
928867.30
723
145
723
145
10
145
125
20
TBD
140
6
20
TBD
3
TBD
18
145
Saprolite/Transition Zone/Bedrock
1.6
IW-13
1681148.70
928636.70
757
170
757
170
10
170
150
20
TBD
165
6
20
TBD
3
TBD
18
170
Saprolite/Transition Zone/Bedrock
1.6
IW-14
1681178.57
928369.95
773
185
773
185
10
185
165
20
TBD
180
6
20
TBD
3
TBD
18
185
Saprolite/Transition Zone/Bedrock
1.6
IW-15
1681181.10
928930.80
730
155
730
155
10
155
135
20
TBD
150
6
20
TBD
3
TBD
18
155
Saprolite/Transition Zone/Bedrock
1.6
IW-16
1681183.00
928698.00
744
160
744
160
10
160
140
20
TBD
155
6
20
TBD
3
TBD
18
160
Saprolite/Transition Zone/Bedrock
1.6
IW-17
1681184.98
928476.64
769
180
755
166
10
166
146
20
TBD
161
6
20
TBD
3
TBD
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-19
1681212.28
928517.54
764
175
754
166
10
166
146
20
TBD
161
6
20
TBD
3
TBD
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-20
1681214.40
928735.40
734
150
734
150
10
150
130
20
TBD
145
6
20
TBD
3
TBD
18
150
Saprolite/Transition Zone/Bedrock
1.6
IW-21
1681218.56
928561.06
753
165
753
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-22
1681234.42
928434.29
767
70
758
61
10
61
41
20
TBD
56
6
20
TBD
3
TBD
18
61
Saprolite/Transition Zone
1.6
IW-23
1681242.30
928992.10
717
145
717
145
10
145
125
20
TBD
140
6
20
TBD
3
TBD
18
145
Saprolite/Transition Zone/Bedrock
1.6
IW-24
1681242.60
928502.40
760
170
760
170
10
170
150
20
TBD
165
6
20
TBD
3
TBD
18
1701
Saprolite/Transition Zone/Bedrock
1.6
IW-25
1681243.36
928592.06
745
155
753
163
10
163
143
20
TBD
158
6
20
TBD
3
TBD
18
1631
Saprolite/Transition Zone/Bedrock
1.6
IW-26
1681247.10
928452.30
766
175
758
167
10
167
147
20
TBD
162
6
20
TBD
3
TBD
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-27
1681248.80
928777.20
737
155
737
155
10
155
135
20
TBD
150
6
20
TBD
3
TBD
18
155
Saprolite/Transition Zone/Bedrock
1.6
IW-29
1681269.45
928630.59
745
160
752
167
10
167
147
20
TBD
162
6
20
TBD
3
TBD
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-32
1681288.05
928670.39
749
160
751
162
10
162
142
20
TBD
157
6
20
TBD
3
TBD
18
162
Saprolite/Transition Zone/Bedrock
1.6
IW-34
1681295.10
928851.90
735
155
735
155
10
155
135
20
TBD
150
6
20
TBD
3
TBD
18
155
Saprolite/Transition Zone/Bedrock
1.6
IW-36
1681305.45
928705.09
748
160
751
162
10
162
142
20
TBD
157
6
20
TBD
3
TBD
18
162
Saprolite/Transition Zone/Bedrock
1.6
IW-37
1681306.40
928629.80
751
165
754
167
10
167
147
20
TBD
162
6
20
TBD
3
TBD
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-40
1681319.80
928776.00
749
165
750
166
10
166
146
20
TBD
161
6
20
TBD
3
TBD
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-42
1681328.00
928674.40
755
165
753
163
10
163
143
20
TBD
158
6
20
TBD
3
TBD
18
1631
Saprolite/Transition Zone/Bedrock
1.6
IW-43
1681330.78
928841.65
741
160
747
166
10
166
146
20
TBD
161
6
20
TBD
3
TBD
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-46
1681336.10
928737.50
751
165
751
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-47
1681336.70
928818.10
745
160
745
160
10
160
140
20
TBD
155
6
20
TBD
3
TBD
18
160
Saprolite/Transition Zone/Bedrock
1.6
IW-50
1681347.20
928707.10
757
170
752
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-52
1681356.40
928805.30
747
165
750
167
10
167
147
20
TBD
162
6
20
TBD
3
TBD
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-55
1681366.10
928902.40
733
155
733
155
10
155
135
20
TBD
150
6
20
TBD
3
TBD
18
155
Saprolite/Transition Zone/Bedrock
1.6
IW-56
1681367.00
928779.50
754
170
751
167
10
167
147
20
TBD
162
6
20
TBD
3
TBD
18
167
Saprolite/Transition Zone/Bedrock
1.6
IW-57
1681369.63
928834.97
744
160
749
164
10
164
144
20
TBD
159
6
20
TBD
3
TBD
18
164
Saprolite/Transition Zone/Bedrock
1.6
IW-58
1681371.30
928741.20
758
170
753
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-60
1681381.90
928797.20
749
165
751
166
10
166
146
20
TBD
161
6
20
TBD
3
TBD
18
166
Saprolite/Transition Zone/Bedrock
1.6
IW-61
1681384.80
928774.60
754
170
752
168
10
168
148
20
TBD
163
6
20
TBD
3
TBD
18
168
Saprolite/Transition Zone/Bedrock
1.6
IW-64
1681404.50
928934.70
741
165
741
165
10
165
145
20
TBD
160
6
20
TBD
3
TBD
18
165
Saprolite/Transition Zone/Bedrock
1.6
IW-66
1681419.50
928882.70
739
160
739
160
10
160
140
20
TBD
155
6
20
TBD
3
TBD
18
160
Saprolite/Transition Zone/Bedrock
1.6
IW-74
1681490.44
928834.14
752
170
755
173
10
173
153
20
TBD
168
6
20
TBD
3
TBD
18
173
Saprolite/Transition Zone/Bedrock
1.6
IW-75
1681509.16
928852.84
753
175
756
178
10
178
158
20
TBD
173
6
20
TBD
3
TBD
18
178
Saprolite/Transition Zone/Bedrock
1.6
IW-76
1681531.70
928898.67
756
180
757
181
10
181
161
20
TBD
176
6
20
TBD
3
TBD
18
181
Saprolite/Transition Zone/Bedrock
1.6
IW-85
1681489.72
928822.21
752
170
755
173
10
173
153
20
TBD
168
6
20
TBD
3
TBD
18
173
Saprolite/Transition Zone/Bedrock
1.6
IW-86
1682570.94
929305.72
675
130
675
130
10
130
110
20
TBD
125
6
20
TBD
3
TBD
18
130
Saprolite/Transition Zone/Bedrock
1.5
IW-87
1682699.22
929370.95
758
225
758
225
10
225
205
20
TBD
220
6
20
TBD
3
TBD
18
225
Saprolite/Transition Zone/Bedrock
1.5
IW-88
1682843.79
929462.26
716
200
716
200
10
200
180
20
TBD
195
6
20
TBD
3
TBD
18
200
Saprolite/Transition Zone/Bedrock
1.5
IW-89
1682875.32
929474.21
660
145
660
145
10
145
125
20
TBD
140
6
20
TBD
3
TBD
18
145
Saprolite/Transition Zone/Bedrock
1.5
IW-90
1682899.23
929482.91
647
135
647
135
10
135
115
1 20
TBD
130
6
20
TBD
3
TBD
18
135
Saprolite/Transition Zone/Bedrock
1.5
IW-91
1682928.58
929481.82
638
130
638
130
10
130
110
1 20
TBD
125
6
20
TBD
3
TBD
18
130
Saprolite/Transition Zone/Bedrock
1.5
NOTES:
1. UNSHADED WELLS WILL BE INSTALLED DURING PHASE 1.
2.
3. CONSTRUCTION DETAILS SHOWN ABOVE ARE APPROXIMATED AND WILL BE DETERMINED BASED ON FIELD DATA COLLECTED AT A LATER DATE.
4. REFER TO FIGURE 4-2 FOR WELL LOCATIONS.
5. ALL ELEVATIONS IN FEET, NAVD 88 - NORTH AMERICAN VERTICAL DATUM OF 1988 UNLESS NOTED OTHERWISE
6. CONSTRUCTION DETAILS SHOWN ABOVE ARE APPROXIMATED AND WILL BE DETERMINED BASED ON FIELD DATA COLLECTED AT A LATER DATE.
7. NA - NOT AVAILABLE
8. TBD - TO BE DETERMINED DURING PHASE 2 DESIGN.
9. GRADING REQUIREMENTS FOR PHASE 2 INJECTION WELL INSTALLATION HAVE NOT BEEN DETERMINED.
NOT TO SCALE
DWG SIZE:
ANSI D 22.0" X 34.0"
A=COM
PROJECT
UIC PERMIT APPLICATION
BELEWS CREEK STEAM STATION
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED FOR
DUKE ENERGY (OWNER)
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED BY
AECOM
1600 Perimeter Park Drive, Suite 400
Morrisville, North Carolina 27560
919.461.1100 tel 919.461.1415 fax
www.aecom.com
REGISTRATION
ISSUE / REVISION
2 2020-07-17 UPDATED WELL DESIGN
1 2020-06-04 ISSUE AS DRAFT
0 2020-05-07 UIC PERMIT APPLICATION
I/R DATE DESRIPTION
DATE
2020-07-17
PROJECT NUMBER
60442330
SHEET TITLE
ATTACHMENT B
WELL CONSTRUCTION SPECIFICATIONS
SHEET NUMBER
Attachment D
Extraction Well Construction Specifications
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PROJECT
UIC PERMIT APPLICATION
BELEWS CREEK STEAM STATION
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED FOR
DUKE ENERGY (OWNER)
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED BY
AECOM
1600 Perimeter Park Drive, Suite 400
Morrisville, North Carolina 27560
919.461.1100 tel 919.461.1415 fax
www.aecom.com
REGISTRATION
ISSUE / REVISION
2
2020-07-17
UPDATED WELL DESIGN
1
2020-07-10
ISSUE AS DRAFT 30% DESIGN
0
2020-07-02
FOR INTERNAL REVIEW
I/R
DATE
DESRI PTION
DATE
2020-07-17
PROJECT NUMBER
60442330
SHEET TITLE
EXTRACTION WELL CONSTRUCTION
DETAILS
SHEET NUMBER
Attachment E
Variance Application for Well Construction Standards:
Underground Injection Control Well (UIC)
Under 15A NCAC 02C.0200
Figure E-1 — Clean Water Infiltration Well Area
(Updated Figure D-3 of the UIC Permit Application)
North Carolina Department of Environmental Quality (DEQ) — Division of Water Resources (DWR)
VARIANCE APPLICATION FOR WELL CONSTRUCTION STANDARDS:
Underground Injection Control Well (UIC) Under 15A NCAC 02C .0200
Print clearly or type information. Illegible submittals will be returned as incomplete.
DATE: August 10 , 2020
Permit No. WI (to be completed by DWR if New Permit)
Existing Permit No. (if applicable) WI0400551 (Permit Application Number) Issued Date:
A. WELL OWNER(S) — For single family residences, list all persons appearing on property deed. For all others, list name
of the business/government agency and person and title with delegated signature authority:
James Wells, Vice President EHS
Mailing Address: 526 South Church Street, Mail Code EC13K
City: Charlotte
Day Tele No.:
980-373-6800
State: NC Zip Code: 28202 County: Mecklenbu
EMAIL Address: james.wells@duke-energy.com
B. PHYSICAL LOCATION OF WELL SITE
Cell No.:
Fax No.:
(1) Parcel Identification Number (PIN) of well site: 6982642715, 6982185694
County: Stokes
(2) Physical Address (if different than mailing address):
Belews Creek Steam Station
3195 Pine Hall Road
City: Belews Creek County: Stokes Zip Code: 27009
C. WELL DRILLER INFORMATION (if known)
Well Drilling Contractor's Name: Geologic Exploration (GEX)
NC Well Drilling Contractor Certification No.:
Company Name: GEX Contact Person: Steve Taylor
City: Statesville State: NC Zip Code: 28625 County: Iredell
Day Tele No.
704-872-7686
Cell No.:
EMAIL Address: staylor(a,gexnc.com Fax No.:
UIC Variance Request 5-29-2020 Page 1
D. REASON FOR VARIANCE REQUEST — Include type of well(s) to be constructed; rule for which the variance is
being requested; description of how the alternate construction/injection plan will not endanger human health and welfare
and the environment; and reason why construction and/or operation in accordance with the standards is not technically
feasible and/or provides equal or better protection of the groundwater (references to attached documents is acceptable).
Based on the distribution of COI and the vertical hydraulic connection through the saprolite, transition, and bedrock
zones, Duke Energy is proposing to install the infiltration wells with well screen and/or sand pack material across all
three hydrostrstratigraphic zones. Given the interconnectivity of the hydrostratigraphic zones, Duke Energy is
requesting a variance from 15A NCAC 02C .0225 North Carolina Well Construction Standards in accordance with
15A NCAC 02C .0241 based on the following:
• Construction of the infiltration wells with screens across the three water -bearing units will allow for more
effective remediation of groundwater.
• Site -related COI are present in groundwater in all three zones.
• Corrective action to address these COI in groundwater is also proposed in all three zones.
• Extraction of groundwater provides the necessary hydraulic connection between the COI- affected groundwater
zones and the proposed clean water infiltration.
• The proposed well construction is not expected to generate a potential risk to human health or groundwater.
• Water supply wells are not located within 500 feet of the proposed extraction wells.
E. ATTACHMENTS — Provide the following information as attachments to this application, where applicable:
(1) A map showing general location of the property (including road names, NC State Route Number, distances, any
key landmarks, etc.) sufficient for finding the well location.
Reference Figures D-1 and D-2 of UIC Permit Application No. WI0400551.
(2) Detailed site map with scale showing contamination plume and location of proposed well(s) relevant to any
receptors including other wells, building foundations, property lines, water bodies, potential sources of
contamination, etc.
Figure D-3 of UIC Permit Application No. WI0400551 has been updated with the modeled boron plume
and included with this submittal (Figure E-1)
(2) Any other information relevant to the variance request such as a well construction diagram showing proposed
well liner or atypical construction materials/methods.
Attachment B of UIC Permit Application No. WI0400551 updated to include minor design changes and
included with this submittal (Attachment C). F. SIGNATURE(S) qhova�i
Signature of Well Owner/Applicant
James Wells, Vice President EHS Programs and Environmental Sciences
Print or Type Name of Well Owner/Applicant and TITLE
Signature of Property Owner (if the property is not owned by the permit applicant)
Print or Type Name of Property Owner and TITLE
(if the property is not owned by the permit applicant)
UIC Variance Request 5-29-2020 Page 2
Per 15A NCAC 02C .0241, the Secretary through the Director of the Division of Water Resources, in order to ensure
compliance with G.S. 87-84, may require submittal of additional information to make a decision on the variance, may
impose conditions as part of the decision, and shall respond in writing to the request within 30 days of receipt of the
variance request. A variance applicant who is dissatisfied with the decision of the Director may commence a contested
case by filing a petition as described in G.S. 150E-23 within 60 days after receipt of the decision.
F. SUBMITTAL INSTRUCTIONS
Submit one hard copies of the completed application package with an electronic version in CD
or USB Flash Drive to:
DIVISION OF WATER RESOURCES — UIC PROGRAM
1636 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1636
TELEPHONE NUMBER: (919) 707-9000
UIC Variance Request 5-29-2020 Page 3
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LEGEND
Duke Energy Carolinas Belews
NOTES
1. Based on the Corrective Action Plan Update (dated
Creek Plant Site Boundary
December 31, 2019) prepared by Synterra Corporation,
/
/
Stream
Wetland (AMEC NRTR)
there are no property boundaries, potential receptors,
water supply wells, septic systems, or other sources of contamination located within 250 feet of the proposed
GWA-18S
�GWA-18SA
GWA-18D
❑
O
p
O
Existing Extraction Well
Monitoring Well
Proposed Clean Water Infiltration Well
Proposed Extraction Well
clean water infiltration wells. Multiple monitoring wells
and surface water bodies are located within 250 feet of
the proposed clean water infiltration wells.
2. The distribution of boron concentrations greater than
the NCAC 02L boron groundwater standard of
/
/
250-foot Radius around Proposed
Clean Water Infiltration Wells
700 tag/L represents the maximum horizontal and
vertical extent of NCAC 02L groundwater exceedances
Boron Concentration NCAC 02L
outside of ash basin geographic limitation and is
/
Exceedances Contour (>700 tag/L)
therefore used as a visual representation of the
maximum extents of NCAC 02L exceedances.
ASH BASIN
O O O
O I W-90 O
IW-89p A IW-91
I W-88 A
O
O O 0
u
BC-150 WET WELL
.al
1
1
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MW-200S
dp
CCR-6D CD CCR-6S
MW-102D (D
MW--102S
MW-101 D (Q MW-101 S
AB-2D
DAM AB-2BR/BRD O O AB-2SA
AB-2S
SOURCE NOTES
1. The aerial photograph was taken from Google Earth,
dated 2020-02-03.
2. The locations of all boundaries and monitoring wells
were provided by Synterra Corporation and originally
documented in the Corrective Action Plan Update
(December 2019).
3. The locations of all remediation wells were provided
by Synterra Corporation and should be considered
approximate.
4. The locations of streams and wetlands were originally
documented in the 2015 AMEC Natural Resources
Technical Reports.
100 0 100 200
SCALE IN FEET: 1" = 100'
CCR-7S
CCR-7D
P"=COM
PROJECT
BELEWS CREEK STEAM
STATION UIC PERMIT
APPLICATION
BELEWS CREEK STEAM STATION
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED FOR
DUKE ENERGY (OWNER)
3195 Pine Hall Road
Belews Creek, North Carolina 27009
PREPARED BY
AECOM
1600 Perimeter Park Drive, Suite 400
Morrisville, North Carolina 27560
919.461.1100 tel 919.461.1415 fax
www.aecom.com
REGISTRATION
ISSUE / REVISION
3
2020-07-16
ISSUED AS DRAFT
2
2020-06-18
ISSUED AS DRAFT
1
2020-05-22
ISSUED AS DRAFT
0
2020-05-21
FOR INTERNAL REVIEW
I/R
DATE
DESRIPTION
DATE
2020-07-16
PROJECT NUMBER
60629990
SHEET TITLE
FIGURE E-1
CLEAN WATER INFILTRATION WELL
AREA
SHEET NUMBER
Attachment F
Variance Application for Well Construction Standards:
Wells Other Than Water Supply Under 15A NCAC 02C .0108
Figure F-1 — Pilot Test Extraction Well Locations
North Carolina Department of Environmental Quality (DEQ) — Division of Water Resources (DWR)
VARIANCE APPLICATION FOR WELL CONSTRUCTION STANDARDS:
WATER SUPPLY WELLS UNDER 15A NCAC 02C .0107
All water supply wells not considered `Private Drinking Water Wells " and including irrigation, industrial, and commercial wells.
WELLS OTHER THAN WATER SUPPLY UNDER 15A NCAC 02C .0108
Including monitoring and recovery wells.
PRIVATE DRINKING WATER WELLS UNDER 15A NCAC 02C .0300
Print clearly or type information. Illegible submittals will be returned as incomplete.
DATE: August 10 , 2020
Existing permit number (if applicable) WI Issued Date: Exp. Date:
Permit No. for new projects (to be completed by DWR/DPH): WI0400551 (Permit Application Number)
A. WELL OWNER(S) — For single family residences, list all persons appearing on property deed. For all others, list name
of the business/government agency and person and title with delegated signature authority:
James Wells, Vice President EHS
Mailing Address: 526 South Church Street, Mail Code EC13K
City: Charlotte State: NC Zip Code: 28202 County: Mecklenburg
Day Tele No..
EMAIL Address:
980-373-6800
jamcs.wclls@dukc-cncrgy.com
Cell No.:
Fax No.:
B. PHYSICAL LOCATION OF WELL SITE
(1) Parcel Identification Number (PIN) of well site: 6982642715, 6982185694
County: Stokes
(2) Physical Address (if different than mailing address):
Belews Creek Steam Station
3195 Pine Hall Road
City: Belews Creek County: Stokes Zip Code: 27009
C. WELL DRILLER INFORMATION (if known)
Well Drilling Contractor's Name: Geologic Exploration (GEX)
NC Well Drilling Contractor Certification No.:
Company Name: GEX Contact Person: Steve Taylor
City: Statesville State: NC Zip Code: 28625
Day Tele No.
704-872-7686
County: Iredell
Cell No.:
EMAIL Address: staylor(a,gexnc.com Fax No.:
GW-22V Variance Request Form Rev. 7-13-2020 Page 1
D. REASON FOR VARIANCE REQUEST — Include type of well(s) to be constructed; rule for which the variance is
being requested; description of how the alternate construction will not endanger human health and welfare and the
environment; and reason why construction and/or operation in accordance with the standards is not technically feasible
and/or provides equal or better protection of the groundwater (refences to attached documents are acceptable).
Based on the distribution of COI and the vertical hydraulic connection through the saprolite, transition, and bedrock
zones, Duke Energy is proposing to install the extraction wells with well screen and/or sand pack material across all
three zones. Given the interconnectivity of the hydrostratigraphic zones, Duke Energy is requesting a variance from
15A NCAC 02C .0225 North Carolina Well Construction Standards in accordance with 15A NCAC 02C .0241 based
on the following:
• Construction of the extraction wells with screens across the three water -bearing units will allow for more effective
remediation of groundwater.
• Site -related COI are present in groundwater in all three zones.
• Corrective action to address these COI in groundwater is also proposed in all three zones.
• Extraction of groundwater provides the necessary hydraulic connection between the COI- affected groundwater
zones and the proposed clean water infiltration.
• The proposed well construction is not expected to generate a potential risk to human health or groundwater.
• Water supply wells are not located within 500 feet of the proposed extraction wells.
E. ATTACHMENTS — Provide the following information as attachments to this application:
(1) A map showing general location of the property (including road names, NC State Route Number, distances, any
key landmarks, etc.) sufficient for finding the well location.
Reference Figures D-1 and D-2 of UIC Permit Application No. WI0400551.
(2) Detailed site map with scale showing location of proposed well relevant to septic system(s), building
foundations, property lines, water bodies, potential sources of contamination, other wells, etc.
See Figure F-1. There are no septic systems, building foundations, property lines, water bodies or potential
sources of contamination within 250-feet of the proposed extraction wells. Existing monitoring wells are
shown on the figure.
(3) Submit a copy of the local well permit application and site evaluation map (if applicable).
Not Applicable
(4) Any other information relevant to the variance request such as a well construction diagram showing proposed
well liner or atypical construction materials/methods.
See Attachment D qgwva�!
F. SIGNATURE(S)
Signature(s) of Well/Property Owner(s)
James Wells, Vice President EHS Programs and Environmental Sciences
Print or Type Well/Property Owner(s)
Signature of Person Responsible for Well Construction
(Typically, the well driller)
GW-22V Variance Request Form Rev. 7-13-2020 Page 2
Steve Taylor, Geologic Exploration
Print or Type Name of Person Responsible for Well Construction
(Typically, the well driller)
N/A
Signature of County Environmental Health Specialist (for Private Water Wells)
N/A
Print or Type Full Name and Title of County Environmental Health Specialist (for Private Water Wells)
Per I5A NCAC 02C.0118 the Secretary of the Division of Water Resources or the Division of Public Health may require
submittal of information deemed necessary to make a decision on the variance, may impose conditions as part of the
decision, and shall respond in writing to the request within 30 days of receipt of the variance request. A variance
applicant who is dissatisfied with the decision of the Director may commence a contested case by filing a petition as
described in G.S. I50B-23 within 60 days after receipt of the decision.
G. SUBMITTAL INSTRUCTIONS
(1) For the following types of water supply wells only:
(a) Private Drinking Water Wells under 15A NCAC 02C .0300
(b) Irrigation Wells underl5A NCAC .02C .0107 with a designed capacity of less than 100,000 gallons per day
and located on the same property as an on -site wastewater system permitted by a local health department.
Prior to submittal of the variance for these types of wells, please contact your regional environmental health specialist
by visiting: http://ehs.ncpublichealth.com/contacts.htm
Submit one copy of the completed variance application to:
North Carolina Department of Health and Human Services
Division of Public Health — Environmental Health Section
On -Site Water Protection Branch
1632 Mail Service Center
Raleigh, North Carolina 27699-1632
(2) For the following types of wells only:
(a) All Water Supply Wells under 15A NCAC 02C .0107 other than the ones listed under (1) above
(b) Wells Other than Water Supply under 15A NCAC 02C .0108. If these wells are to be constructed on property
not owned by the well owner or applicant, please also attach and submit a completed Application to Construct
a Monitoring or Recovery Well System (GW-22MR) found on our website at:
http://deg.nc. gov/about/divisions/water-resources/water-resources-permits/wastewater-brancli/ground-water-
protection/ground-water-aplications
Submit one copy of the completed
variance application to the Division
of Water Resources Regional Office
serving the area in which the well
will be located:
Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778
Telephone: (828) 296-4500
Fan: (828) 299-7043
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628
Telephone: (919) 791-4200
Fax: (919) 571-4718
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Telephone: (910) 796-7215
Fax: (910) 350-2004
GW-22V Variance Request Form Rev. 7-13-2020 Page 3
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MONITORING WELL
PILOT TEST EXTRACTION WELL
/ i' ❑ EX-07
❑ EXISTING EXTRACTION WELL
/ ASH BASIN WASTE BOUNDARY
/ ASH BASIN GEOGRAPHIC
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LIMITATION
i
NOTES
THE WATERS OFTHE HAVE NOT BEEN APPROVED BY THE US ARMY CORPS OF
BASE CONTOUR 2 FEET
ENGINEERS ATTHE TI MEME THE MAP CREATION SE THIS M APISNOTTO BE USED
FOP DETERMINATION PURPOSES. THE WETLANDS AND STREAMS
i
SWERE
BOUNDARIES
BOENEATRUC WERE INC NAT RALRESOURCEFROM AMEC TE WHEELER TECHNICAL
STPUCTUPIOND NATURAL RESOURCE TECHNICAL REPORT FOR BELEWS
BASE CONTOUR 20 FEET
/•
EX-O9 �
CREEK
CREEK STEAM STATION DATED JULV 2, 2015.
�� •�
ALL BOUNDARIES ARE APPROXIMATE.
DUKE ENERGY CAROLINAS
PROPERTY ENEP°°°AP°DIVAS
�.. �.
PROPERTY BOUNDARY
OBTAPROVIDED
HOBOUNDARY
FROMP
AERIAL PHOTOGRAPHY OBTAINED FROM NC One Map.
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
UNPAVED ROADS
SYSTEM FIRS 3200 (NAD83).
/
� DUKE
GRAPHIC SCALE
o eo
goo
FIGURE F-1
ElEX-10
PILOT TEST EXTRACTION
CCR-2D
ENERGY.,
Feet
WELL LOCATIONS
-�CCR-2S
---.
/,
DRAWN BY: T. EISCH EN
REVISED BY
DATE: 05/05/2020
DATE
BELEWS CREEK STEAM STATION
J.APPROVED
COM
BY:
.
APPROVED BY
DATE
DATE: :
BELEWS CREEK, NORTH CAROLINA
I
PROJECT MANAGER
DATE: