20160742 Ver 6_Revised Approval Letter_20230510

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHAR) E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
May 10, 2023
DWR # 20160742 Version 6
Jackson County
Duke Energy Carolinas, LLC
Attn: Mr. Ken Karably
400 S. Tryon Street, Mail Stop ST28U
Charlotte, NC 28202
Delivered via email to: [e-mail]
Subject: Approval of Individual 401 Water Quality Certification
Cedar Cliff Development Auxiliary Spillway Upgrade Project
USACE Action ID. No. SAW-2015-02543
Dear Mr. Karably:
Attached hereto is a copy of Certification No. WQC004077 issued to Mr. Ken Karably and Duke Energy
Carolinas, LLC, dated May 10, 2023. This Certification replaces the Certification issued on February 22,
2022. This Certification is being issued pursuant to a modification request submitted on March 6, 2023, to
include modifications to the Shook Cove Road Boar Ramp and rip rap associated with the barge loading
area at the peninsula along the 1951 Access Road. This approval is for the purpose and design described
in your application. The plans and specifications for this project are incorporated by reference as part of
this Water Quality Certification. If you change your project, you must notify the Division and you may be
required to submit a new application package with the appropriate fee. If the property is sold, the new
owner must be given a copy of this Certification and is responsible for complying with all conditions. [15A
NCAC 02H .0507(d)(2)].
This Water Quality Certification does not relieve the permittee of the responsibility to obtain all other
required Federal, State, or Local approvals before proceeding with the project, including those required
by, but not limited to, Sediment and Erosion Control, Non -Discharge, Water Supply Watershed, and
Trout Buffer regulations.
This Water Quality Certification neither grants nor affirms any property right, license, or privilege in any
lands or waters, or any right of use in any waters. This Water Quality Certification does not authorize
any person to interfere with the riparian rights, littoral rights, or water use rights of any other person
and does not create any prescriptive right or any right of priority regarding any usage of water. This
Water Quality Certification shall not be interposed as a defense in any action respecting the
determination of riparian or littoral rights or other rights to water use. No consumptive user is deemed
by virtue of this Water Quality Certification to possess any prescriptive or other right of priority with
respect to any other consumptive user.
North Carolina Department of Environmental Quality I Division of Water Resources
v 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
oepartmem or a AkonmenW anai� /�

Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 2 of 12
Upon the presentation of proper credentials, the Division may inspect the property.
This Water Quality Certification shall expire on the same day as the expiration date of the corresponding
Section 404 Permit. The conditions shall remain in effect for the life of the project, regardless of the
expiration date of this Water Quality Certification.
Non-compliance with or violation of the conditions herein set forth may result in revocation of this
Water Quality Certification for the project and may also result in criminal and/or civil penalties.
If you are unable to comply with any of the conditions of this Water Quality Certification you must notify
the Raleigh Regional Office within 24 hours (or the next business day if a weekend or holiday) from the
time the permittee becomes aware of the circumstances.
The permittee shall report to the Asheville Regional Office any noncompliance with, and/or any violation
of, stream or wetland standards [15A NCAC 02B .0200] including but not limited to sediment impacts to
streams or wetlands. Information shall be provided orally within 24 hours (or the next business day if a
weekend or holiday) from the time the permittee became aware of the non-compliance circumstances.
This approval and its conditions are final and binding unless contested [G.S. 143-215.5].
This Certification can be contested as provided in Chapter 150B of the North Carolina General Statutes by
filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of Administrative
Hearings (OAH) within sixty (60) calendar days. Requirements for filing a Petition are set forth in Chapter
150B of the North Carolina General Statutes and Title 26 of the North Carolina Administrative Code.
Additional information regarding requirements for filing a Petition and Petition forms may be accessed at
http://www.ncoah.com/ or by calling the OAH Clerk's Office at [phone].
A party filing a Petition must serve a copy of the Petition on:
William F. Lane, General Counsel
Department of Environmental Quality
1601 Mail Service Center
Raleigh, NC 27699-1601
If the party filing the Petition is not the permittee, then the party must also serve the recipient of the
Certification in accordance with N.C.G.S 15013-23(a).
D E Q �J North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORrH CAROLINA 919.707.9000
oepanmem or Environmental Q&au

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 3 of 12
This letter completes the Division's review under section 401 of the Clean Water Act and 15A NCAC 02H
.0500. Please contact Andrew Moore at 828-296-4684 or [e-mail] if you have any
questions or concerns.
Sincerely,
Es
DocuSigned by:
fp6tk�r✓ i�bSS
755ABFOCD8OB428...
Stephanie Goss, Supervisor
401 & Buffer Permitting Branch
Electronic cc: Eric Mularksi, HDR Engineering, Inc.
Brooke Davis, USACE Asheville Regulatory Field Office
Andrea Leslie, NCWRC
Todd Bowers, EPA
Christopher A. Militsher, Chief, NEPA Section, Strategic Programs Office, USEPA, 61
Forsyth St SW, Atlanta, GA 30303
Maria Clark, NEPA Section — Region 4, USEPA, 61 Forsyth St SW, Atlanta, GA 30303
DWR 401 & Buffer Permitting Branch Electronic file
Filename: 20160742v6CedarCliffSpillway(Jackson)_401 _IC.docx
REQ5 North Carolina Department ofEnvironmental Quality I Division ofWater Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
onparhnem of EmironmanW 9uallly

Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 4 of 12
NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
CERTIFICATION # WQC004077 is issued in conformity with the requirements of Section 401, Public Laws
92-500 and 95-217 of the United States and subject to North Carolina's Regulations in 15 NCAC 02H .0500
and 15A NCAC 02B .0200, to Mr. Ken Karably and Duke Energy Carolinas, LLC, who have authorization for
the impacts listed below, as described within your request to modify the 401 Certification received by the
N.C. Division of Water Resources (Division) on March 6, 2023, and subsequent information on May 2,
2023.
The State of North Carolina certifies that this activity will comply with water quality requirements and
the applicable portions of Sections 301, 302, 303, 306, 307 of the Public Laws 92-500 and PL 95-217 if
conducted in accordance with the application, the supporting documentation, and conditions
hereinafter set forth.
The following impacts are hereby approved. No other impacts are approved, including incidental
impacts. [15A NCAC 02H .OS06(b)]
Type of Impact
Amount Approved
(units)
Permanent
Amount Approved
(units)
Temporary
Stream
Site 1
0 (linear feet)
110 (linear feet)
Site 2 — Kiesee Creek
0 (linear feet)
45 (linear feet)
Site 3 — Bypass Reach
578 (linear feet)
0 (linear feet)
Site 4 — Bypass Reach
0 (linear feet)
70 (linear feet)
Site 5 — Bypass Reach
0 (linear feet)
20 (linear feet)
Site 6 — Bypass Reach
0 (linear feet)
10 (linear feet)
Site 7 — Bypass Reach
19 (linear feet)
0 (linear feet)
Open Waters
Site OW1
0 (acres)
0.5 (acres)
Site OW2
8.75 (acres)
0 (acres)
Site OW3
0 (acres)
50.8 (acres)
Site OW4
0.01 (acres)
0 (acres)
Site OW5 — 1951 access
connector road
0.61 (acres)
0 (acres)
Site OW6 — Barge Access
Rd
0.49 (acres)
0 (acres)
Site OW7 — Excavation
0.63 (acres)
0 (acres)
Site OW8 — Rock Ditch
0.70 (acres)
0 (acres)
Site OW9 — Rock Vane
0.03 (acres)
0 (acres)
Site OW10— Riprap Apron
0.007 (acres)
0 (acres)
Site OW11— Riprap at
Peninsula Access
0.04 (acres)
0 (acres)
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORrHCARouNA 919.707.9000
Depanmenf of Environmental Duali\

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 5 of 12
This approval requires you to follow the conditions listed in the certification below.
CONDITIONS OF CERTIFICATION [15A NCAC 02H .0507(c)]:
1. The NC Wildlife Resources Commission (NCWRC) shall be consulted to determine the preferred
rock spoil locations within the lake.
Citation: 15A NCAC 02H .0506(b)(1), 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule (including, at minimum: aquatic life propagation, survival,
and maintenance of biological integrity; wildlife; secondary contact recreation; agriculture); and
that activities must not cause water pollution that precludes any best use on a short-term or
long-term basis.
A reservoir drawdown plan shall be provided to the Division for approval 30 calendar days prior to
submittal to FERC.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. In determining that the proposed activity will
comply with state water quality standards (including designated uses, numeric criteria, narrative
criteria and the state's antidegradation policy), the Division must evaluate if the activity has
avoided and minimized impacts to waters, would cause or contribute to a violation of standards or
would result in secondary or cumulative impacts.
The Permittee shall adhere to the Water Quality Monitoring Plan submitted to the Division on
May 19, 2019. Water Quality Monitoring shall continue for a minimum of 36 months post
construction completion. The Permittee shall submit an annual summary report of the monitoring
data to the Division by December 31 of each year beginning in December 2019.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. In determining that the proposed activity will
comply with state water quality standards (including designated uses, numeric criteria, narrative
criteria and the state's antidegradation policy), the Division must evaluate if the activity has
avoided and minimized impacts to waters, would cause or contribute to a violation of standards or
would result in secondary or cumulative impacts.
4. The Permittee shall maintain compliance with all conditions of DWR Certification No. 3831 (DWR
Project #2003-1112).
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule (including, at minimum: aquatic life propagation, survival,
and maintenance of biological integrity; wildlife; secondary contact recreation; agriculture); and
� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
gaparNrM of Emironmanfal quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 6 of 12
that activities must not cause water pollution that precludes any best use on a short-term or
long-term basis.
The permittee shall report to the DWR Asheville Regional Office any noncompliance with, and/or
any violation of, stream or wetland standards [15A NCAC 02B .0200], including but not limited to
sediment impacts to streams or wetlands. Information shall be provided orally within 24 hours (or
the next business day if a weekend or holiday) from the time the permittee became aware of the
non-compliance circumstances.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Timely reporting of non-compliance is important in identifying and minimizing
detrimental impacts to water quality and avoiding impacts due to water pollution that precludes
any best use on a short-term or long-term basis.
6. No waste, spoil, solids, or fill of any kind shall occur in wetlands or waters beyond the footprint
of the approved impacts (including temporary impacts).
Citation: 15A NCAC 02H .0506; 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule (including, at minimum: aquatic life propagation, survival,
and maintenance of biological integrity; wildlife; secondary contact recreation; agriculture); and
that activities must not cause water pollution that precludes any best use on a short-term or
long-term basis.
7. All activities shall be in compliance with any applicable State Regulated Riparian Buffer Rules in
Chapter 2B of Title 15A in the North Carolina Administrative Code.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: The referenced Riparian Buffer rules were adopted to address water quality
impairments and further protect existing uses.
8. The Permittee shall secure approval of an Erosion and Sediment Control Plan prior to
commencing drawdown of the water level in the reservoir. All construction activities shall be
performed and maintained in full compliance with G.S. Chapter 113A Article 4 (Sediment and
Pollution Control Act of 1973). Sediment and erosion control measures shall not be installed in
wetlands or waters with the exception of turbidity curtains. All sediment and erosion control
devices shall be removed and the natural grade restored within two (2) months of the date that
the Division of Energy, Mineral and Land Resources (DEMLR) has released the specific area
within the project.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCACO2B .0200; 15A NCAC 02B
.0231
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 7 of 12
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses, and (21) turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units
(NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs
designated as trout waters, for lakes and reservoirs not designated as trout waters, the turbidity
shall not exceed 25 NTU; if turbidity exceeds these levels due to natural background conditions,
the existing turbidity level shall not be increased. As cited in Wetland Standards: (c)(1) Liquids,
fill or other solids, or dissolved gases shall not be present in amounts that may cause adverse
impacts on existing wetland uses; and (3) Materials producing color or odor shall not be present
in amounts that may cause adverse impacts on existing wetland uses.
9. Erosion control matting that incorporates plastic mesh and/or plastic twine shall not be used
along streambanks or within wetlands.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: A project that affects waters shall not be permitted unless the existing uses
(including aquatic life propagation and biological integrity), and the water quality to protect
such uses, are protected. Protections are necessary to ensure any remaining surface waters or
wetlands, and any surface waters or wetlands downstream, continue to support existing uses
during and after project completion. The Division must evaluate if the activity has avoided and
minimized impacts to waters, would cause or contribute to a violation of standards, or would
result in secondary or cumulative impacts.
10. If the project is covered by NPDES Construction Stormwater Permit Number NCGO10000 or
NPDES Construction Stormwater Permit Number NCG250000, full compliance with permit
conditions including the erosion & sedimentation control plan, inspections and maintenance,
self -monitoring, record keeping and reporting requirements is required.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCAC 028.0200; 15A NCAC 02B
.0231
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses; and (21) turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units
(NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs
designated as trout waters; for lakes and reservoirs not designated as trout waters, the turbidity
shall not exceed 25 NTU; if turbidity exceeds these levels due to natural background conditions,
the existing turbidity level shall not be increased. As cited in Wetland Standards: (c)(1) Liquids,
fill or other solids, or dissolved gases shall not be present in amounts that may cause adverse
impacts on existing wetland uses; and (3) Materials producing color or odor shall not be present
in amounts that may cause adverse impacts on existing wetland uses.
11. All work in or adjacent to streams shall be conducted so that the flowing stream does not come
in contact with the disturbed area. Approved best management practices from the most current
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 8 of 12
version of the NC Sediment and Erosion Control Manual, or the NC Department of
Transportation Construction and Maintenance Activities Manual, such as sandbags, rock berms,
cofferdams, and other diversion structures shall be used to minimize excavation in flowing
water.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCAC 028.0200
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule, and that activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses, and (21) turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units
(NTU) in streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs
designated as trout waters, for lakes and reservoirs not designated as trout waters, the turbidity
shall not exceed 25 NTU; if turbidity exceeds these levels due to natural background conditions,
Culverts shall be designed and installed in such a manner that the original stream profiles are
not altered and allow for aquatic life movement during low flows. The dimension, pattern, and
profile of the stream above and below a pipe or culvert shall not be modified by widening the
stream channel or by reducing the depth of the stream in connection with the construction
activity. The width, height, and gradient of a proposed culvert shall be such as to pass the
average historical low flow and spring flow without adversely altering flow velocity. If the width
of the culvert is wider than the stream channel, the culvert shall include multiple boxes/pipes,
baffles, benches and/or sills to maintain the natural width of the stream channel. If multiple
culverts/pipes/barrels are used, low flows shall be accommodated in one culvert/pipe and
additional culverts/pipes shall be installed such that they receive only flows above bankfull.
Placement of culverts and other structures in streams shall be below the elevation of the
streambed by one foot for all culverts with a diameter greater than 48 inches, and 20% of the
culvert diameter for culverts having a diameter less than or equal to 48 inches, to allow low flow
passage of water and aquatic life. If the culvert outlet is submerged within a pool or scour hole
and designed to provide for aquatic passage, then culvert burial into the streambed is not
required.
For structures less than 72" in diameter/width, and topographic constraints indicate culvert
slopes of greater than 2.5% culvert burial is not required, provided that all alternative options
for flattening the slope have been investigated and aquatic life movement/connectivity has
been provided when possible (e.g. rock ladders, cross -vanes, sills, baffles etc.). Notification,
including supporting documentation to include a location map of the culvert, culvert profile
drawings, and slope calculations, shall be provided to DWR 30 calendar days prior to the
installation of the culvert.
When bedrock is present in culvert locations, culvert burial is not required, provided that there
is sufficient documentation of the presence of bedrock. Notification, including supporting
documentation such as a location map of the culvert, geotechnical reports, photographs, etc.
shall be provided to DWR a minimum of 30 calendar days prior to the installation of the culvert.
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 9 of 12
If bedrock is discovered during construction, then DWR shall be notified by phone or email
within 24 hours of discovery.
Installation of culverts in wetlands shall ensure continuity of water movement and be designed
to adequately accommodate high water or flood conditions. When roadways, causeways, or
other fill projects are constructed across FEMA-designated floodways or wetlands, openings
such as culverts or bridges shall be provided to maintain the natural hydrology of the system as
well as prevent constriction of the floodway that may result in destabilization of streams or
wetlands.
The establishment of native woody vegetation and other soft stream bank stabilization
techniques shall be used where practicable instead of rip -rap or other bank hardening methods.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule, and that activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. Ensuring that structures are installed
properly in waters will ensure that surface water quality standards are met and conditions of
waters are suitable for all best uses.
12. Application of fertilizer to establish planted/seeded vegetation within disturbed riparian areas
and/or wetlands shall be conducted at agronomic rates and shall comply with all other Federal,
State and Local regulations. Fertilizer application shall be accomplished in a manner that
minimizes the risk of contact between the fertilizer and surface waters.
Citation: 15A 02H .0506(b), 15A NCAC 02H .0507(c), 15A NCAC 02B .0200, 15A NCAC 02B .0231
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses. As cited in Wetland Standards: (c)(1) Liquids, fill or other solids, or dissolved gases shall not
be present in amounts that may cause adverse impacts on existing wetland uses; and (3)
Materials producing color or odor shall not be present in amounts that may cause adverse
impacts on existing wetland uses.
13. If concrete is used during construction, then all necessary measures shall be taken to prevent
direct contact between uncured or curing concrete and waters of the state. Water that
inadvertently contacts uncured concrete shall not be discharged to waters of the state.
Citation: 15A 02H .0506(b); 15A NCAC 02H .0507(c), 15A NCAC 028.0200; 15A NCAC 028.0231
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 10 of 12
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses. As cited in Wetland Standards: (c)(1) Liquids, fill or other solids, or dissolved gases shall not
be present in amounts that may cause adverse impacts on existing wetland uses, and (3)
Materials producing color or odor shall not be present in amounts that may cause adverse
impacts on existing wetland uses.
14. Temporary culverts approved for this project shall be removed and the impacted area shall be
returned to natural conditions within 60 calendar days after the temporary impact is no longer
necessary. The impacted areas shall be restored to original grade, including each stream's
original cross -sectional dimensions, planform pattern, and longitudinal bed profile. All
temporarily impacted sites shall be restored and stabilized with native vegetation.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Protections are necessary to ensure any
remaining surface waters or wetlands, and any surface waters or wetlands downstream, continue
to support existing uses after project completion.
15. All proposed and approved temporary pipes/culverts/rip-rap pads etc. in streams or wetlands
shall be installed as outlined in the most recent edition of the North Carolina Sediment and
Erosion Control Planning and Design Manual or the North Carolina Surface Minin Manual or the
North Carolina Department of Transportation Best Management Practices for Construction and
Maintenance Activities so as not to restrict stream flow or cause dis-equilibrium during use of
this Certification.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Protections are necessary to ensure any
remaining surface waters or wetlands, and any surface waters or wetlands downstream, continue
to support existing uses after project completion.
16. Any rip -rap required for proper culvert placement, stream stabilization, or restoration of
temporarily disturbed areas shall be restricted to the area directly impacted by the approved
construction activity. All rip -rap shall be placed such that the original streambed elevation and
streambank contours are restored and maintained and shall consist of clean rock or masonry
material free of debris or toxic pollutants. Placement of rip -rap or other approved materials
shall not result in de -stabilization of the stream bed or banks upstream or downstream of the
area or be installed in a manner that precludes aquatic life passage.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule, and that activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. The Division must evaluate if the
activity has avoided and minimized impacts to waters, would cause or contribute to a violation
of standards, or would result in secondary or cumulative impacts.
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 11 of 12
17. Any rip -rap used for stream or shoreline stabilization shall be of a size and density to prevent
movement by wave, current action, or stream flows, and shall consist of clean rock or masonry
material free of debris or toxic pollutants. Rip -rap shall not be installed in the streambed except
in specific areas required for velocity control and to ensure structural integrity of bank
stabilization measures.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCAC 028.0201
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule, and that activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. The Division must evaluate if the
activity has avoided and minimized impacts to waters, would cause or contribute to a violation
of standards, or would result in secondary or cumulative impacts.
18. All mechanized equipment operated near surface waters shall be inspected and maintained
regularly to prevent contamination of surface waters from fuels, lubricants, hydraulic fluids, or
other toxic materials. Construction shall be staged in order to minimize the exposure of
equipment to surface waters to the maximum extent practicable. Fueling, lubrication, and
general equipment maintenance shall be performed in a manner to prevent, to the maximum
extent practicable, contamination of surface waters by fuels and oils.
Citation: 15A NCAC 02H .0506(b), 15A NCAC 02H .0507(c), 15A NCAC 028.0200, 15A NCAC 028
.0231
Justification: A project that affects waters shall not be permitted unless the existing uses, and the
water quality to protect such uses, are protected. Activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. As cited in Stream Standards: (12)
Oils, deleterious substances, or colored or other wastes: only such amounts as shall not render
the waters injurious to public health, secondary recreation, or to aquatic life and wildlife, or
adversely affect the palatability offish, aesthetic quality, or impair the waters for any designated
uses. As cited in Wetland Standards: (c)(1) Liquids, fill or other solids, or dissolved gases shall not
be present in amounts that may cause adverse impacts on existing wetland uses, and (3)
Materials producing color or odor shall not be present in amounts that may cause adverse
impacts on existing wetland uses.
19. In accordance with 143-215.85(b), the permittee shall report any petroleum spill of 25 gallons or
more; any spill regardless of amount that causes a sheen on surface waters; any petroleum spill
regardless of amount occurring within 100 feet of surface waters; and any petroleum spill less
than 25 gallons that cannot be cleaned up within 24 hours.
Citation: 15A NCAC 02H .0507(c); N.C.G.S 143-215.85(b)
Justification: Person(s) owning or having control over oil or other substances upon notice of
discharge must immediately notify the Department, or any of its agents or employees, of the
nature, location, and time of the discharge and of the measures which are being taken or are
proposed to be taken to contain and remove the discharge. This action is required in order to
contain or divert the substances to prevent entry into the surface waters. Surface water quality
standards require that conditions of waters be suitable for all best uses provided for in state rule
(including, at minimum: aquatic life propagation, survival, and maintenance of biological
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay

DocuSign Envelope ID: 8055D8CA-B8AF-4A52-8139-9BF2C490FABF
Cedar Cliff Development Auxiliary Spillway Upgrade Project
DWR Project #20160742 Ver 6
Individual Certification #WQC004077
Page 12 of 12
integrity, wildlife, secondary contact recreation; agriculture); and that activities must not cause
water pollution that precludes any best use on a short-term or long-term basis.
20. The permittee and their authorized agents shall conduct all activities in a manner consistent
with State water quality standards (including any requirements resulting from compliance with
§303(d) of the Clean Water Act), and any other appropriate requirements of State and Federal
Law.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Surface water quality standards require that conditions of waters be suitable for all
best uses provided for in state rule, and that activities must not cause water pollution that
precludes any best use on a short-term or long-term basis. The Division must evaluate if the
activity has avoided and minimized impacts to waters, would cause or contribute to a violation
of standards, or would result in secondary or cumulative impacts.
21. The permittee shall require its contractors and/or agents to comply with the terms and
conditions of this certification in the construction and maintenance of this project, and shall
provide each of its contractors and/or agents associated with the construction or maintenance
of this project with a copy of this Water Quality Certification. A copy of this Water Quality
Certification shall be available at the project site during the construction and maintenance of
this project.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
Justification: Those actually performing the work should be aware of the requirements of this
401 Water Quality Certification to minimize water quality impacts.
This approval to proceed with your proposed impacts or to conduct impacts to waters as depicted in
your application shall expire upon expiration of the 404 Permit. The conditions in effect on the date of
issuance shall remain in effect for the life of the project, regardless of the expiration date of this
Certification. [15A NCAC 02H .0507(c)]
This, the 10th day of May 2023
EsDocuSigned by:
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Stephanie Goss, Supervisor
401 & Buffer Permitting Branch
��� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
0_p Mo Emimnmen quay