20100308 Ver 1_Approval Letter_20100626

r
1./
t ?
FRIENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
July 26, 2010
DWQ# 10-0308
Catawba County
Dr. Gregory J. Thorpe
NC Department of Transportation
Project Development and Environmental .Analysis'
1598 Mail Service Center
Raleigh, NC 27699-1598
REISSUANCE/APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Dr. Thorpe:
You have our approval, in accordance with the attached conditions and those listed below, to permanently
impact 143 linear feet (If) (54 If for-culvert installation and 89 If for inlet and outlet floodpiain bench construction)
and to temporarily impact 30'If (deviatering'activities)-of Pinch Gut Creek, a perennial stream; as described in
your application, received-by the Divisioh'of•Wate'r Quality(DWQ)'on April 217 2040; arid' additional : •t'
information:'received'June 30, 201,0.''The'location of the project is State.Road 1880 (Sti. James Church
Road) in Catawba County. After reviewing your application, we have determined that this project is covered by
Water Quality' General Certification .Numbers 3689, 3701, and 3688. Please note that you should get any
other federal, state or local permits before proceeding with your project, including those required by (but not
limited to) Sediment and Erosion Control, Non-Discharge, and Water Supply Watershed regulations. This
approval will expire with the associated 404 permit unless otherwise specified in the Water Quality
Certification.
This approval is valid solely for the purpose and design that you described in your application (unless modified
below). Should your project change, you must notify the DWQ in writing and you may be required to submit a
new application. If the property is sold, the new owner must be given a copy of this Certification and approval
letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in
the future) exceed one acre, or if total impacts to streams (now or in the future) exceed 150 linear feet,
compensatory mitigation may be required as described in 15A NCAC 2H.0506 (h)(6) and (7). For this approval
to remain valid, you must adhere to the conditions listed in the attached certification and those listed below:
1. Unless otherwise approved in this certification, placement of culverts and other structures in waters,
streams and wetlands shall be-placed below the elevation of the streambed by one (1) foot for all
culverts with :a diameter of greater than 48 inches, and 20 percent of the culvert diameter for culverts
.1. z.having a-diameter less than 48 inches;,to''allow.low floWpassage'of water and aquatic life..Design and
:'t.placement=of culverts and other structures, including temporar!erosion; control'measures`?shall not be
conducted•in?a'manner.thbtnriay result in dis=equilibrium'of wetlands or'streamoeds or banks; adjacent
to,onupstream and down stream`of the above structures.
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville. INC 28115 . One
Phone: [phone] Fax: [phone] Customer Service: 1-877-623 6748 NorthCaroltna
Internet:
iitD:?iL*?n81.OC(1en;nm/ave6iWa LF
An Equal Opportunity )Affrmative Action Employer -50%Recycled110% Post Consumer paper Nati//Ha/
"ly

Dr. Gregory J. Thorpe
Page Two
The applicant is required, to provide evidence that the equilibrium is being maintained if requested in
writing .by.NCDWQ.. The multiple barrels shall be designed to mimic natural stream cross sections as
closely as possible including pipes or barrels at the "floodplain ;elevation and/or sills where appropriate.
2. Floodplain benches shall be constructed as depicted in the plans at both the inlet and the outlet of the ,
culvert, to include the use of Class II riprap on the waterward face of the benches and coir fiber matting
on the surface of the benches to provide stabilization.
3. Strict adherence to the most recent version of the NCDOT's Best Management Practices for Bridge
Demolition and Removal, approved by the US Army Corps of Engineers, is a condition of the 401 Water
Quality Certification.
4. 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.
5. 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.
6. During the construction of the project, no staging of equipment of any kind is permitted in waters of the
U.S. or protected riparian buffers.
7. The use of riprap above the normal high water mark shall be minimized.. Any. riprap placed for stream
stabilization shall,be.placed in stream,channels.in such a manner.that it'does not, impede aquatic life
passage.
8. Heavy equipment shall be operated from the banks rather than in the stream channel in order minimize
sedimentation and reduce the introduction of other pollutants into the stream.
9. No rock, sand or other materials shall be dredged from the stream channel except where authorized by
this certification.
10. Temporary dewatering sites must be restored to pre-existing conditions unless more natural
geomorphic conditions can be provided.
11. All work in or adjacent to stream waters shall be conducted in a dry work area. Approved BMP
measures from the most current version of the NCDOT Construction and Maintenance Activities
manual such as sandbags, rock berms, cofferdams and other diversion structures shall be used to
prevent excavation in flowing water.
12. All mechanized equipment operated near surface waters must be regularly inspected and maintained to
prevent contamination of stream waters from fuels, lubricants, hydraulic fluids, or other toxic materials.
13. All fill slopes located in jurisdictional wetlands shall be placed at slopes no flatter than 3:1, unless
otherwise authorized by this.certification.
14. Discharging hydroseed mixtures and washing out hydroseeders and other equipment'in' or adjacent to
surface waters is prohibited.
Dr. Gregory J. Thorpe
Page Three
15. A copy of this Water Quality Certification shall be posted 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.
16. Native riparian vegetation must be re-established within the construction limits of the project by the end
of the growing season following completion of construction.
1T Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum
extent practicable. If placement of sediment and erosion control devices in wetlands and waters is
unavoidable, they shall be removed and the natural grade restored within 30 days after the Division of
Land Resources has released the project.
18. Erosion arid 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:
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'erosidn 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,
19. The North Carolina Department of Transportation (NCDOT) and its contractors and/or agents shall not
excavate, fill or perform mechanized land clearing at any time in the construction or maintenance of this
project within waters and/or wetlands, except as authorized by this Certification, or any modification to
this Certification (e.g., no work shall occur outside of the footprint of the plans provided). In addition,
there shall be no excavation from or waste disposal into jurisdictional wetlands or waters associated
with this Certification without appropriate modification. If this occurs, compensatory mitigation may be
required since it is a direct impact from road construction activities.
II 20. The Permittee shall ensure that the final design drawings adhere to the certification and to the drawings
submitted for approval.
21. The outside buffer, wetland or water boundary located within the construction corridor approved by this
certification 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.
22. The Permittee shall report any violations of this certification to the Division of Water Quality within 24
hours of discovery.

Dr. Gregory J. Thorpe
Page Four
23. Upon completion of the project, the NCDOT Division Engineer shall complete and return the enclosed
"Certificate of Completion" form to notify DWQ when. all work included in the 401 Certification has been
completed. Please :include photographs upstream:•and downstream of the.structure to document
correct installation. r
24. Continuing Compliance. NCDOT shall conduct its activities in a manner so as not to contravene any
state water quality standard [including any requirements for compliance with section 303(d) of the
Clean Water Act] and any other appropriate requirements of state and federal law. If DWQ 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, DWQ may reevaluate and modify this certification to include conditions appropriate to
assure compliance with such standards and requirements in accordance with 15 A NCAC 2H.0507(d).
Before codifying the certification, DWQ shall notify NCDOT and the USACE, provide public notice in
accordance with 15A NCAC 2H.0503, and provide opportunity for public hearing in accordance with
15A NCAC 2H.0504. Any new or revised conditions shall be provided to NCDOT in writing, shall be
provided to the USACE for reference in any permit issued pursuant to Section 404 of the Clean Water
Act, and shall also become conditions of the 404 Permit for the project.
If you do not accept any of the conditions of this Certification, you may ask for an adjudicatory hearing. You
must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition that
conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714
Mail Service Center, Raleigh, N.C. 27699-6714. This Certification and its conditions are final and binding unless
you ask for a hearing.
This letter completes the review by the Division of Water_Quality under Section 401 of the Clean Water Act. If
you have any questions, please.telephone Polly Lespinasse in the Mooresville Regional Office at 704-663-1699.
Sincerely,
--718
forColeen H. Sullins
Attachments
cc: Liz Hair, USACE Asheville Field Office
Jason Dilday, NCDOT PDEA
Trish Simon, NCDOT Division 12
Sonia Carrillo, DWQ Wetlands Unit
File Copy