20140957 Ver 2_GC4086_20170303

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
WATER QUALITY GENERAL CERTIFICATION NO. 4086
GENERAL CERTIFICATION FOR PROJECTS ELIGIBLE FOR US ARMY CORPS OF ENGINEERS
0 NATIONWIDE PERMIT 12 (UTILITY LINE ACTIVITIES)
Water Quality Certification Number 4086 is issued in conformity with the requirements of
Section 401, Public Laws 92-500 and 95-217 of the United States and subject to the North
Carolina Regulations in 15A NCAC 02H .0500 and 15A NCAC 02B .0200 for the discharge of fill
material to surface waters and wetland areas as described in 33 CFR 330 Appendix A (13) (12) of
the US Army Corps of Engineers regulations.
The State of North Carolina certifies that the specified category of activity will not violate
applicable portions of Sections 301, 302, 303, 306 and 307 of the Public Laws 92-500 and 95-217
if conducted in accordance with the conditions hereinafter set forth.
Effective date: March 19, 2017
Signed this day March 3, 2017
0
for S. Jay Zimmerman, P.G.
Director

GC4086
Activities meeting any one (1) of the following thresholds or circumstances require written
approval for a 401 Water Quality Certification from the Division of Water Resources (DWR):
a) If any of the Conditions of this Certification (listed below) cannot be met; or
b) Any permanent fill into or modification of wetlands and/or waters; or
c) Total temporary impacts to streams greater than 500 feet; or
d) Any stream relocation or stream restoration; or
e) Any impacts to waters, or to wetlands adjacent to waters, designated as: ORW (including
SAV), HQW (including PNA), SA, WS -1, WS -'II, Trout, or North Carolina or National Wild and
Scenic River; or
f) Any impacts to coastal wetlands [15A NCAC 07H .0205], or Unique Wetlands (UWL); or
g) Any impact associated with a Notice of Violation or an enforcement action for violation(s)
of NC Wetland Rules (15A NCAC 02H .0500), NC Isolated Wetland Rules (15A NCAC 02H
.1300), NC Surface Water or Wetland Standards (15A NCAC 02B .0200), or State
Regulated Riparian Buffer Rules (15A NCAC 02B.0200); or
h) Any impacts to subject water bodies and/or state regulated riparian buffers along subject
water bodies in the Neuse, Tar -Pamlico, or Catawba River Basins or in the Randleman
Lake, Jordan Lake or Goose Creek Watersheds (or any other basin or watershed with
State Regulated Riparian Area Protection Rules (Buffer Rules] in effect at the time of
application) unless:
0 The activities are listed as "EXEMPT" from these rules; or
ii) A Buffer Authorization Certificate is issued by the NC Division of Coastal
Management (DCM); or
III) A Buffer Authorization Certificate or a Minor Variance is issued by a delegated or
designated local government implementing a state riparian buffer program
pursuant to 143-215.23.
Activities included in this General Certification that do not meet one of the thresholds listed above
do not require written approval.
1. ACTIVITY SPECIFIC CONDITIONS:
1. All sewer lines shall be designed, constructed and maintained in accordance with Title 15A
NCAC Chapter 02T.
2. 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. Exceptions to this condition
require application to and written approval from DWR. [15A NCAC 02H .0506 (b)(4) and
(c)(4)]
3. Utility lines shall cross all stream channels at a near -perpendicular direction (i.e., between 75
degrees and 105 degrees to the stream bank). Exceptions to this condition require
application to and written approval from DWR. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
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I r
��_§ �-001
4. Construction corridors in wetlands and across stream channels shall be minimized to the
maximum extent practicable and shall not exceed 50 feet wide for gas utility lines and 40
feet wide for all other utility lines. Exceptions to this condition require application to and
written approval from DWR. [15A NCAC 02H .0506 (b)(2) and (c)(2)]
For construction corridors in wetlands and across stream channels, stumps shall be grubbed
only as needed to install the utility and remaining stumps shall be cut off at grade level. The
general stripping of topsoil within wetlands along the construction corridor is not permitted.
5. Permanent maintained access corridors in wetlands and across stream channels shall be
restricted t6 the minimum width practicable and,shall not exceed 30 feet wide for gas utility
lines and 20 feet wide for all other utility lines except at manhole locations. 15 -foot by 15 -
foot perpendicular vehicle turnarounds shall be allowed in access corridors but must be
spaced at least 500 feet apart. Exceptions to this condition require application to and
written approval from DWR. [15A NCAC 02H.0506 (b)(2) and (c)(2)]
6. For all utility lines constructed within wetlands, an anti -seep collar shall be placed at the
downstream (utility line gradient) wetland boundary and every 150 feet up the gradient until
the utility exits the wetland. Anti -seep collars may be constructed with class B concrete,
compacted clay, PVC pipe, or metal collars. Wetland crossings that are directionally drilled,
and perpendicular wetland crossings that are open cut and less than 150 feet long do not
require anti -seep collars. The compacted clay shall have a specific infiltration of I X 10-5
cm/sec or less. A section and plan view diagram is attached for the anti -seep collars. [15A
NCAC 02H .0506 (b)(4) and (c)(4)]
The following specifications shall apply to class B concrete:
a. Minimum cement content, sacks per cubic yard with rounded course aggregate 5.0
b. Minimum cement content, sacks per cubic yard with angular course aggregate 5.5
c. Maximum water -cement ratio gallons per sack 6.8
d. Slump range 2" to 4"
e. Minimum strength - 28 day psi 2,500
7. The applicant shall have a specific plan for restoring wetland contours. Any excess material
will be removed to a high ground disposal area. [15A NCAC 02H.0506 (b)(2) and (c)(2)]
The mixing of topsoil and subsoils within the wetlands along utility corridors shall be
minimized to the greatest extent practical. During excavation, the soils shall be placed on
fabric to minimize impacts whenever possible. Topsoil excavated from utility trenches will be
piled separately from subsoils and will be backfilled into the trench only after the subsoils
have been placed and compacted.
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8. For the North Carolina Department of Transportation, compliance with the NCDOT`s
individual NPDES permit NCS000250 shall serve to satisfy this condition. For all other utility
line and associated facilities projects that disturb one acre or more of land (including a
project that disturbs less than one acre of land that is part of a larger common plan of
development or sale); have permanent wetland, stream, or open water impacts; and are
proposing new built -upon area shall comply with the following requirements: [15A NCAC 02H
.0506(b)(5) and (c)(5)]
a. Stormwater management shall be provided throughout the entire project area in
accordance with 15A NCAC 02H .1003. For the purposes of 15A NCAC 02H .1003(2)(a),
density thresholds shall be determined in accordance with 15A NCAC 02H .1017.
b. Projects that have vested rights, exemptions, or grandfathering from state or locally -
implemented stormwater programs do not satisfy this condition. Projects that satisfy
state or locally -implemented stormwater programs through use of community in -lieu
programs do not satisfy this condition.
c. Projects that require written authorization from DWR shall submit the following with
their application for review and approval:
L For projects that have a stormwater management plan (SIVIP) reviewed under a state
stormwater program' or a state -approved local government stormwater prograM2
shall submit plans that show the location and approximate size of all proposed
stormwater measures;
ii. All other low density projects not covered above shall submit a completed low
density supplement form with all required items; and
iii. All other high density projects not covered above shall submit a completed SIVIP,
including all appropriate stormwater control measure (SCIVI) supplemental forms and
associated items, that complies with the'high density development requirements of
15A N CAC 02 H .1003.
d. Projects that do not require written approval from DWR shall obtain approval of the SIVIP,
when required, before any impacts authorized by this Certification occur.
e. SIVIPs approved by DWR may be phased on a case-by-case basis. SIVIPs for each future
phase must be approved before construction of that phase commences. Approved SIVIPs
may not be modified without prior written authorization from DWR.
1 e.g. Coastal Counties, HQW, ORW, or state -implemented Phase 11 NPDES
2 e.g. Delegated Phase 11 NPDES, Water Supply Watershed, Nutrient -Sensitive Waters, or Universal Stormwater
Management Program
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II. GENERAL CONDITIONS:
1. When written authorization is required, the plans and specifications for the project are
incorporated into the authorization by reference and are an enforceable part of the
Certification. Any modifications to the project require notification to DWR and may require an
application submittal to DWR with the appropriate fee. [15ANCACO2H.0501and.0502]
2. No waste, spoil, solids, or fill of any kind shall occur in wetlands or waters beyond the
footprint of the impacts (including temporary impacts) as authorized in the written approval
from DWR; or beyond the thresholds established for use of this Certification without written
authorization. [15A NCAC 02H .0501 and .0502]
No removal of vegetation or other impacts of any kind shall occur to state regulated riparian
buffers beyond the footprint of impacts approved in a Buffer Authorization or Variance or as
listed as an exempt activity in the applicable riparian buffer rules. [15A NCAC 02B.0200]
3. In accordance with 15A NCAC 02H .0506(h), compensatory mitigation may be required for
losses of greater than 150 linear feet of streams and/or greater than one (1) acre of
wetlands. Impacts to isolated and other non -404 jurisdictional wetlands shall not be
combined with 404 jurisdictional wetlands for the purpose of determining when impact
thresholds trigger a mitigation requirement. For linear publicly owned and maintained
transportation projects that are not determined to be part of a larger common plan of
development by the US Army Corps of Engineers, compensatory mitigation may be required
for losses of greater than 150 linear feet per stream.
Compensatory stream and/or wetland mitigation shall be proposed and completed in
compliance with G.S. 143-214.11. For applicants proposing to conduct mitigation within a
project site, a complete mitigation proposal developed in accordance with the most recent
guidance issued by the US Army Corps of Engineers Wilmington District shall be submitted
for review and approval with the application for impacts.
4. All activities shall be in compliance with any applicable State Regulated Riparian Buffer Rules
in Chapter 2 of Title 15A.
5. When applicable, 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. [15A NCAC
02H .0506 (b)(3) and (c)(3) and 15A NCAC 0213.02001
Design, installation, operation, and maintenance of all sediment and erosion control
measures shall be equal to or exceed the requirements specified in the most recent version
of the North Carolina Sediment and Erosion Control Manual, or for linear transportation
projects, the NCDOTSediment and Erosion Control Manual.
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Kille KIM$]
All devices shall be maintained on all construction sites, borrow sites, and waste pile (spoil)
sites, including contractor -owned or leased borrow pits associated with the project.
Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
For borrow pit sites, the erosion and sediment control measures shall be designed, installed,
operated, and maintained in accordance with the most recent version of the North Carolina
Surface Mining Manual. Reclamation measures and implementation shall comply with the
reclamation in accordance with the requirements of the Sedimentation Pollution Control Act
and the Mining Act of 1971.
If the project occurs in waters or watersheds classified as Primary Nursery Areas (PNAs), SA,
WS -1, WS -11, High Quality Waters (HQW), or Outstanding Resource Waters (ORW), then the
sedimentation and erosion control designs shall comply with the requirements set forth in
15A N CAC 04B .0124, Design Standards in Sensitive Watersheds.
6. Sediment and erosion control measures shall not be placed in wetlands or waters except
within the footprint of temporary or permanent impacts authorized under this Certification.
Exceptions to this condition require application to and written approval from DWR. [15A
N CAC 02 H .0501 and .0502)
7. Erosion control matting that incorporates plastic mesh and/or plastic twine shall not be used
along streambanks or within wetlands. Exceptions to this condition require application to
and written approval from DWR. [15A NCAC 0213.0201]
8. An NPDES Construction Stormwater Permit (NCGO10000) is required for construction
projects that disturb one (1) or more acres of land. The NCGO3.0000 Permit allows
stormwater to be discharged during land disturbing construction activities as stipulated in
the conditions of the permit. If the project is covered by this permit, full compliance with
permit conditions including the erosion & sedimentation control plan, inspections and
maintenance, self-monitoring, record keeping and reporting requirements is required. 115A
NCAC 02H .0506(b)(5) and (c)(5)]
The North Carolina Department of Transportation (NCDOT) shall be required to be in full
compliance with the conditions related to construction activities within the most recent
version of their individual NPDES (NCS000250) stormwater permit. [15A NCAC 02H
.0506(b)(5) and (c)(5)]
9. 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 DOT
Construction and Maintenance Activities Manual, such as sandbags, rock berms, cofferdams,
and other diversion structures shall be used to minimize excavation in flowing water.
Exceptions to this condition require application to and written approval from DWR. [15A
NCAC 02H .0506(b)(3) and (c)(3)]
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GC4086
10. If activities must occur during periods of high biological activity (e.g. sea turtle nesting, fish
spawning, or bird nesting), then biological monitoring may be required at the request of
other state or federal agencies and coordinated with these activities. [15A NCAC 02H .0506
(b)(2) and 15A NCAC 0413.0125]
All moratoriums on construction activities established by the NC Wildlife Resources
Commission (WRQ US Fish and Wildlife Service (USFWS), NC Division of Marine Fisheries
(DMF), or National Marine Fisheries Service (NMFS) shall be implemented. Exceptions to this
condition require written approval by the resource agency responsible for the given
moratorium. A copy of the approval from the resource agency shall be forwarded to DWR.
Work within a designated trout watershed of North Carolina (as identified by the Wilmington
District of the US Army Corps of Engineers), or identified state or federal endangered or
threatened species habitat, shall be coordinated with the appropriate WRC, USFWS, NMFS,
and/or DMF personnel.
11. 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. [15A NCAC 02H.0506(b)(2) and (c)(2)]
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 multiple pipes or barrels are required, they shall be designed,to mimic the existing stream
cross section as closely as possible including pipes or barrels at flood plain elevation and/or
sills where appropriate. Widening the stream channel shall be avoided.
When topographic constraints indicate culvert slopes of greater than 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, etc.). Notification, including supporting documentation to include a location
map of the culvert, culvert profile drawings, and slope calculations, shall be provided to DWR
60 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 60 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.
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GC4086
If other site-specific topographic constraints preclude the ability to bury the culverts as
described above and/or it can be demonstrated that burying the culvert would result in
destabilization of the channel, then exceptions to this condition require application to and
written approval from DWR.
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.
12. Bridge deck drains shall not discharge directly into the stream. Stormwater shall be directed
across the bridge and pre-treated through site -appropriate means to the maximum extent
practicable (e.g. grassed swales, pre -formed scour holes, vegetated buffers, etc.) before
entering the stream. Exceptions to this condition require application to and written approval
from DWR. [15A NCAC 02H .0506(b)(5)]
13. 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. [15A NCAC 02B
.0200 and 15A NCAC 0213.02311
14. 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. [15A
NCAC 02B.0200]
15. All proposed and approved temporary fill and culverts 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. For projects that receive written approval, no temporary impacts
are allowed beyond those included in the application and authorization. All temporarily
impacted sites shall be, restored and stabilized with native vegetation. [15A NCAC 02H
.0506(b)(2) and (c)(2)]
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GC4086
16. All proposed and approved temporary pipes/culverts/rip-rap pads etc. in streams 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 Mining Manual or the
North Carolina Department of Transportation Best Management Practices for Construction
and Maintenahce Activities so as not to restrict stream flow or cause dis-equilibrium during
use of this Certification. [15A NCAC 02H .0506(b)(2) and (c)(2)]
17. 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 stream elevation and
streambank contours are restored and maintained. Placement of rip -rap or other approved
materials shall not result in cle-stabilization of the stream bed or banks upstream or
downstream of the area or in a manner that precludes aquatic life passage. [15A NCAC 02H
.0506(b)(2)]
18. 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. [15A NCAC 02H .0506(b)(2)]
19. Applications for rip -rap groins proposed in accordance with 15A NCAC 07H .1401 (NC
Division of Coastal Management General Permit for construction of Wooden and Rip -rap
Groins in Estuarine and Public Trust Waters) shall meet all the specific conditions for design
and construction specified in 15A NCAC 07H .1405.
20. All mechanized equipment operated near surface waters shall be inspected and maintained
regularly to prevent contamination of stream 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 not take place within 50 feet of a waterbody or
wetlands to prevent contamination by fuels and oils. [15A NCAC 02H .0506(b)(3) and (c)(3)
and 15A NCAC 0213.0211 (12)]
21. Heavy equipment working in wetlands shall be placed on mats or other measures shall be
taken to minimize soil disturbance. [15A NCAC 02H .0506(b)(3) and (c)(3)]
22. In accordance with 143-215.85(b), the applicant 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.
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GC4086
23. If an environmental document is required under the State Environmental Policy Act (SEPA),
then this General Certification is not valid until a Finding of No Significant Impact (FONSI) or
Record of Decision (ROD) is issued by the State Clearinghouse. If an environmental document
is required under the National Environmental Policy Act (NEPA), then this General
Certification is not valid until a Categorical Exclusion, the Final Environmental Assessment, or
Final Environmental Impact Statement is published by the lead agency. 115A NCAC 01C
.0107(a)]
24. This General Certification does not relieve the applicant 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.
25. The applicant 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. If DWR determines that such standards or laws are not being met, including
failure to sustain a designated or achieved use, or that State or Federal law is being violated,
or that further conditions are necessary to assure compliance, then DWR may revoke or
modi a written authorization associated with this General Water Quality Certification. [15A
NCAC 02H .0507(d)]
26. When written authorization is required for use of this Certification, upon completion of all
permitted impacts included within the approval and any subsequent modifications, the
applicant shall be required to return a certificate of completion (available on the DWR
website: https://edocs.deg.nc.gov/Forms/Certificate-of-Completion). 115A NCAC 02H
.0502(f)]
27. Additional site-specific conditions, including monitoring and/or modeling requirements, may
be added to the written approval letter for projects proposed under this Water Quality
Certification in order to ensure compliance with all applicable water quality and effluent
standards. [15ANCACO2H.0507(c)]
28. If the property or project is sold or transferred, the new Permittee shall be given a copy of
this Certification (and written authorization if applicable) and is responsible for complying
with all conditions. [15A NCAC 02H .0501 and.0502]
Ill. GENERAL CERTIFICATION ADMINISTRATION:
1. in accordance with North Carolina General Statute 143-215.3D(e), written approval for a 401
Water Quality General Certification must include the appropriate fee. An applicant for a
CAMA permit under Article 7 of Chapter 113A of the General Statutes for which a Water
Quality Certification is required shall only make one payment to satisfy both agencies; the fee
shall be as established by the Secretary in accordance with 143-215.3D(e)(7).
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GC4086
2. This Certification neither grants nor affirms any property right, license, or privilege in any
waters, or any right of use in any waters. This Certification does not authorize any person to
interfere with the riparian rights, littoral rights, or water use rights of any other person and
this Certification does not create any prescriptive right or any right of priority regarding any
usage of water. This 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 Certification to possess any prescriptive or
other right of priority with respect to any other consumptive user regardless of the quantity
of the withdrawal or the date on which the withdrawal was initiated or expanded.
3. This Certification grants permission to the Director, an authorized representative of the
Director, or DWR staff, upon the presentation of proper credentials, to enter the property
during normal business hours. [15A NCAC 02H .0502(e)]
4. This General Certification shall expire on the same day as the expiration date of the
corresponding Nationwide Permit and/or Regional General Permit. The conditions in effect
on the date of issuance of Certification for a specific project shall remain in effect for the life
of the project, regardless of the expiration date of this Certification. This General
Certification is rescinded when the US Army Corps of Engineers reauthorizes any of the
corresponding Nationwide Permits and/or Regional General Permits or when deemed
appropriate by the Director of the Division of Water Resources.
5. Non-compliance with or violation of the conditions herein set forth by a specific project may
result in revocation of this General Certification for the project and may also result in
criminal and/or civil penalties.
6. The Director of the North Carolina Division of Water Resources may require submission of a
formal application for Individual Certification for any project in this category of activity if it is
determined that the project is likely to have a significant adverse effect upon water quality,
including state or federally listed endangered or threatened - aquatic species, or degrade the
waters so that existing uses of the water or downstream waters are precluded.
7. Public hearings may be held prior to a Certification decision if deemed in the public's best
interest by the Director of the North Carolina Division of Water Resources.
History Note: Water Quality Certification (WQC) Number 4806 issued March 3, 2017 replaces
WQC 3884 issued March 19, 2012, WQC Number 3819 issued March 19, 2010; WQC Number
3699 issued November 1, 2007; WQC Number 3625 issued March 19, 2007; WQC Number 3374
issued March 18, 2002, WQC Number 3288 issued June 1, 2000, WQC Number 3101 issued
February 11, 1997; WQC Number 3022 issued September 6, 1995, WQC Number 2664 issued
January 21, 1992.
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GC4086
ANTI -SEEP COLLAR
Irf---- -1
18
Inches
Al, j Utility Line
I (Diameter Varies)
I foot I I
1,4 Class B Concrete
or Compacted Clay
t
6 Inches r=rnch 7VWdth 6 Inches
Not to exceed 40 feet
SECTION
Class B Concrete
kr Compacted Clay
inches
6 Inchqt0.Wq
_,.�_Jj inches
PLAN
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