20190653 Ver 1_DWR's Comments to CE_20191104

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
MEMORANDUM
NORTH CAROLINA
Environmental Quality
November 4, 2019
To: Lyn Hardison, Environmental Coordinator, Office of Legislative and Intergovernmental Affairs
DS
From: Dave Wanucha, Division of Water Resources, Winston Salem Offic EJ' 11/4/2019
Subject: Comments on the Ground Disturbing Categorical Exclusion related to proposed Bridge 105
replacement over the Yadkin River overflow on US 421 in Forsyth County; WBS Element
46104.1.1; STIP B-5389
This office has reviewed the referenced document dated August 5, 2019. The NC Division of Water Resources
(NCDWR) is responsible for the issuance of the Section 401 Water Quality Certification for activities that impact
Waters of the U.S., including wetlands. A Water Quality Certification was issued for the above referenced project
on June 11, 2019. NCDWR's comments regarding the Categorical Exclusion are below.
Project Specific Conditions
1. The post -construction removal of any temporary bridge structures must return the project site to its
preconstruction contours and elevations. The impacted areas shall be revegetated with appropriate native
species. [15A NCAC 02H .0506(b)(2)
2. All work in or adjacent to stream waters shall be conducted per approved BMP measures from the most current
version of NCDOT Construction and Maintenance Activities manual. [15A NCAC 02H.0506(b)(3) and (c)(3)]
3. No drill slurry or water that has been in contact with uncured concrete shall be allowed to enter surface waters.
This water shall be captured, treated, and disposed of properly. [ 15A NCAC 02H .0506(b)(3)
4. Bridge demolition and construction must be accomplished in strict compliance with the most recent version of
NCDOT's Best Management Practices for Construction and Maintenance Activities. [15A NCAC
02H .0507(d)(2) and 15A NCAC 02H .0506(b)(5)]
5. Bridge deck drains shall not discharge directly into the stream. Stormwater shall be pre-treated through site -
appropriate means (grassed swales, pre -formed scour holes, rip -rap deck drain pads, vegetated buffers, etc.)
before entering the stream. [15A NCAC 02H .0507(d)(2) and 15A NCAC 02H .0506(b)(5).
General Conditions
1. If concrete is used during construction, a dry work area shall be maintained to prevent direct contact between
curing concrete and stream water. Water that inadvertently contacts uncured concrete shall not be discharged
to surface waters due to the potential for elevated pH and possible aquatic life and fish kills. [I 5A NCAC
0213.0200]
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2. The dimension, pattern and profile of the stream above and below the crossing shall not be modified.
Disturbed floodplains and streams shall be restored to natural geomorphic conditions. [15A NCAC
02H.0506(b)(2)]
3. The use of rip -rap above the Normal High Water Mark shall be minimized. Any rip -rap placed for stream
stabilization shall be placed in stream channels in such a manner that it does not impede aquatic life passage.
[15ANCAC 02H.0506(b)(2)]
4. The Permittee shall ensure that the final design drawings adhere to the permit and to the permit drawings
submitted for approval. [15A NCAC 02H .0507(c) and 15A NCAC 02H .0506 (b)(2) and (c)(2)]
5. No rock, sand or other materials shall be dredged from the stream channel except where authorized by this
certification. [15ANCAC 02H.0506(b)(3)]
6. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent to surface waters
is prohibited. [15A NCAC 02H.0506(b)(3)]
7. The permittee and its authorized agents shall conduct its 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 the NCDWR determines that such standards or laws
are not being met (including the 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, the NCDWR may reevaluate and modify
this certification. [ 15A NCAC 02B.0200]
8. All fill slopes located in jurisdictional wetlands shall be placed at slopes no flatter than 3:1, unless otherwise
authorized by this certification. [15A NCAC 02H.0506(b)(2)]
9. A copy of this Water Quality Certification shall be maintained on the construction site at all times. In addition, the
Water Quality Certification and all subsequent modifications, if any, shall be maintained with the Division Engineer
and the on -site project manager. [15A NCAC 02H .0507(c) and 15A NCAC 02H .0506 (b)(2) and (c)(2)]
10. The outside buffer, wetland or water boundary located within the construction corridor approved by this
authorization shall be clearly marked by highly visible fencing prior to any land disturbing activities. Impacts to
areas within the fencing are prohibited unless otherwise authorized by this certification. [15A NCAC 02H.0501
and .0502]
11. The issuance of this Certification does not exempt the Permittee from complying with any and all statutes, rules,
regulations, or ordinances that may be imposed by other government agencies (i.e. local, state, and federal) having
jurisdiction, including but not limited to applicable buffer rules, stormwater management rules, soil erosion and
sedimentation control requirements, etc.
12. The Permittee shall report any violations of this certification to the Division of Water Resources within 24 hours
of discovery. [I 5A NCAC 02B.0506(b)(2)]
13. Upon completion of the project (including any impacts at associated borrow or waste sites), the NCDOT Division
Engineer (or appointee) shall complete and return the enclosed "Certification of Completion Form" to notify the
NCDWR when all work included in the 401 Certification has been completed. [15A NCAC 02H.0502(f)]
14. Native riparian vegetation must be reestablished in the riparian areas within the construction limits of the project
by the end of the growing season following completion of construction. [15A NCAC 02H.0506(b)(3) and (c)(3)]
15. There shall be no excavation from, or waste disposal into, jurisdictional wetlands or waters associated with this
permit without appropriate modification. Should waste or borrow sites, or access roads to waste or borrow sites,
be located in wetlands or streams, compensatory mitigation will be required since that is a direct impact from road
construction activities. [15A NCAC 02H.0506(b)(3) and (c)(3)]

16. Erosion and sediment control practices must be in full compliance with all specifications governing the proper
design, installation and operation and maintenance of such Best Management Practices in order to protect surface
waters standards [15A NCAC 02H.0506(b)(3) and (c)(3]):
a. The erosion and sediment control measures for the project must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Sediment and Erosion Control
Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control measures must be
such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina
Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow
sites, and waste pile (spoil) projects, including contractor -owned or leased borrow pits associated with the
project.
c. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Surface Mining Manual.
d. The reclamation measures and implementation must comply with the reclamation in accordance with the
requirements of the Sedimentation Pollution Control Act.
17. Where placement of sediment and erosion control devices in wetlands and/or waters is unavoidable, they shall be
removed, and the natural grade restored upon completion of the project. [15A NCAC 02H.0506(b)(3) and (c)(3)]
NCDWR appreciates the opportunity to provide comments on your project. Should you have any questions or require
any additional information, please contact Dave Wanucha at 336-776-9703 or [e-mail].
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