20240203 500 600 Waterfield Ridge Place - Wake - IP

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
June 10, 2024
DWR # 20240203
Wake County
Modern Mechanical HVAC LLC
Attn: Stephen F. Eisenmann Sr.
1544 Mechanical Blvd
Garner, NC 27529
Delivered via email to: [e-mail]
Subject: Approval of Individual 401 Water Quality Certification
500 & 600 Waterfield Ridge Place
USACE Action ID. No. SAW-2023-01402
Dear Stephen F. Eisenmann Sr:
Attached hereto is a copy of Certification No. WQC006915 issued to Stephen F. Eisenmann Sr. and
Modern Mechanical HVAC LLC dated June 10, 2024. 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.
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.
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
NoarH CAROLINA 919.707.9000
oeparrmem or eartruomemai aaaZ�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 2 of 8
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 Raleigh 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).
This letter completes the Division's review under section 401 of the Clean Water Act and 15A NCAC 02H
.0500. Please contact Cat Otero at 919-707-1842 or [e-mail] if you have any
questions or concerns.
Sincerely,
DocuSigned by:
Sf t plA,aan �t �DSS
Steppervisor
401 & Buffer Permitting Branch
Electronic cc: Deborah E. Shirley, Soil & Environmental Consultants, Inc.
David Bailey, USACE
Gabriela Garrison, NCWRC
D E Q�JJ North Carolina Department of Environmental Quality I Division of Water Resources
!� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NoarH cnaoLNA 919.707.9000
DeprMent of Environmental Duali�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 3 of 8
NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
CERTIFICATION #WQC006915 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 Stephen F. Eisenmann Sr. and Modern Mechanical HVAC LLC who
have authorization for the impacts listed below, as described within your application received by the
N.C. Division of Water Resources (Division) on January 29, 2024 with fee received March 12, 2024 and
Public Notice issued by the Division on February 2, 2024.
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 .0506(b)]
Type of Impact
Amount Approved
Amount
Mitigation
Permanent
Approved
Amount
Temporary
Required
Wetland
W1— Utility Crossing &
0.032 acres
0 acres
0 credits
Connection
This approval requires you to follow the conditions listed in the certification below.
CONDITIONS OF CERTIFICATION [15A NCAC 02H .0507(c)]:
Any final construction plans for this project must include or reference the application and plans
approved by the Division under this authorization letter and certification. The applicant will also
be required to evaluate all acquired permits to assure that they are consistent, and all relative
impacts are accounted for and shown on the construction plans. Any additional impacts to
streams and/or wetlands within the project may be considered cumulative to impacts approved
in this Certification and may require a modification of this 401 Water Quality Certification
approval.
Citation: 15A NCAC 02H .0506; 15A NCAC 02H .0507(c)
2. All wetlands, streams, and surface waters located within 50 feet of the construction area on the
project site shall be clearly marked (example- orange fabric fencing) prior to any land disturbing
activities and must be maintained on the property until the project phase is completed.
Citation: 15A NCAC 02H .0506; 15A NCAC 02H .0507(c)
3. Any additional impacts to streams and/or wetlands as a result of future roads, buildings,
driveways, utility lines or other development related activities within the 500 & 600 Waterfield
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
l� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTHCAROLINA 919.707.9000
oepanmem or Eemmemeemi aeei� /`�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 4 of 8
Ridge Place project area may be considered cumulative to impacts approved in this Certification
and may require a modification of this 401 Water Quality Certification approval_
Citation: 15A NCAC 02H .0506; 15A NCAC 02H .0507(c)
4. The Permittee shall secure an approved stormwater management plan (SMP) from Johnston
County before any impacts authorized in this certification occur. The applicable portion of the
approved SMP shall be constructed and operational before any permanent building or other
permanent structure is occupied at the site. If any of the SCMs are used as an Erosion and
Sediment Control device, it must be restored to the approved stormwater design condition
within 30 days of close-out of the Erosion and Sediment Control Plan.
Citation: 15A NCAC 02H .0506(b)(2) and (3); 15A NCAC 02H .0507(c)
All sewer lines shall be designed, constructed and maintained in accordance with Title 15A NCAC
Chapter 02T, applicable Minimum Design Criteria (MDC), and/or Alternative Design Criteria.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
6. Any utility construction corridor that is parallel to a stream or open water shall not be closer than
10 feet to the top of bank or ordinary high-water mark.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
The permittee shall report to the DWR Raleigh 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)
8. 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)
9. 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)
10. 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). Regardless of applicability
of the Sediment and Pollution Control Act, all projects shall incorporate appropriate Best
Management Practices for the control of sediment and erosion so that no violations of state
water quality standards, statutes, or rules occur.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCACO28 .0200, 15A NCAC 028
.0231
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
l� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTHCAROLINA 919.707.9000
oepanmem or Eemmemeemi aeei� /`�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 5 of 8
11. Sediment and erosion control measures shall not be installed in wetland or waters except within
the footprint of temporary or permanent impacts otherwise authorized by this Certification. If
placed within authorized impact areas, then placement of such measures shall not be conducted
in a manner that results in dis-equilibrium of any wetlands, streambeds, or streambanks. Any
silt fence installed within wetlands shall be removed from wetlands and the natural grade
restored within two (2) months of the date that DEMLR or locally delegated program has
released the specific area within the project to ensure wetland standards are maintained upon
completion of the project.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCAC 02B .0200; 15A NCAC 02B
.0231
12. 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)
13. If the project is covered by NPDES Construction Stormwater Permit Number NCG010000 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 02B .0200; 15A NCAC 02B
.0231
14. 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
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 02B .0200
15. 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
D E Q�JJ North Carolina Department of Environmental Quality I Division of Water Resources
!� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NoarHCAROLNA 919.707.9000
oeparrmem or eartruomemai aaar�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 6 of 8
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.
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)
16. 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
17. 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 02B .0200; 15A NCAC 02B .0231
18. 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.
D E Q�JJ North Carolina Department of Environmental Quality I Division of Water Resources
!� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NoarHCAROLNA 919.707.9000
oeparrmem or eartruomemai aaar�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 7 of 8
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
19. 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 02B .0201
20. 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 02B .0200; 15A NCAC 02B
.0231
21. Heavy equipment working in wetlands shall be placed on mats or other measures shall be taken
to minimize soil disturbance and compaction.
Citation: 15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c); 15A NCAC 02B .0231
22. 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)
23. Deed notifications or similar mechanisms shall be placed on all lots/parcels with retained
jurisdictional wetlands, waters, and state regulated riparian buffers within the project
boundaries in order to assure compliance with NC Water Quality Certification Rules (15A NCAC
02H .0500), NC Isolated Wetland Rules (15A NCAC 02H .1300), and/or State Regulated Riparian
Buffer Rules (15A NCAC 02B .0200). These mechanisms shall be put in place at the time of
recording of the property or individual parcels, whichever is appropriate.
Citation: 15A NCAC 02H .0502(a);15A NCAC 02H .0506(b); 15A NCAC 02H .0507(c)
24. 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)
25. 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
D E Q�JJ North Carolina Department of Environmental Quality I Division of Water Resources
!� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NoarHCAROLNA 919.707.9000
oeparrmem or eartruomemai aaar�

DocuSign Envelope ID: D3D8210A-CAEC-4789-AEB5-8A5FBFEC2517
500 & 600 Waterfield Ridge Place
DWR# 20240203 v1
Individual Certification #WQC006915
Page 8 of 8
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)
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 10" day of June 2024,
DocuSigned ,by: /'�((
Sh phi- C,6SS
755ABFOCD806428...
Stephanie Goss, Supervisor
401 & Buffer Permitting Branch
D E Q�JJ North Carolina Department of Environmental Quality I Division of Water Resources
!� 512 North Salisbury Street 11611 Mail Service Center I Raleigh, North Carolina 27699-1611
NoarH CAROLNA 919.707.9000
Deparrmem or enviro memai Daar�