20120497 Ver 2_Riparian Buffer Authorization_20160616

Kimley»>Horn
June 14, 2016
Ms Karen Higgins
NC Division of Water Resources
401 & Buffer Permitting Unit
512 N. Salisbury Street
Raleigh, NC 27604
JUN 16 1016 I
RE: Riparian Buffer Authorization Modification Request— DWR Project #12-0497
Homestead -Chapel Hill High School Multi -Use Path (TIP# U-4726DE)
Carrboro, Orange County, North Carolina
Dear Ms Higgins:
On behalf of our client, the Town of Carrboro, Kimley-Horn is submitting this Riparian Buffer
Authorization Modification request for the Homestead -Chapel Hill High School Multi -Use Path project
in Orange County, North Carolina This request is a modification to the existing Riparian Buffer
Authorization that was approved by NCDWR on June 13, 2012
Since the original approval, Kimley-Horn met with the Orange Water and Sewer Authority (OWASA)
on behalf of the Town of Carrboro on June 20, 2012 to discuss the vertical clearance (9 feet) between
the bottom of the proposed pedestrian bridge over Bolin Creek and existing ground surface. OWASA
had expressed concern that they would not be able to traverse under the bridge with some of their
larger maintenance vehicles. It was discussed at that meeting that Kimley-Horn would design a gravel
access from the existing utility easement to either side of the multi -use path for safe use by the larger
maintenance vehicles and equipment After reviewing the Final Greenway Plans on August 2, 2012,
OWASA provided an email stating that the gravel access would be a permit requirement This
resulted in the proposed modification to the greenway project and triggered additional impacts to the
protected riparian buffer of Bolin Creek as shown in the attached documentation
Due to changes in the Riparian Buffer Authorization Request Form since 2012, and the change in
point of contact at the Town of Carrboro on this project, an updated Riparian Buffer Authorization
Form has been completed with the updated project information and modified impacts. Overall,
permanent impacts to the riparian buffer have been decreased, as some areas initially authorized as
permanent impacts in 2012 have now been revised to be temporary impacts. Below is a table
outlining the impact changes since the 2012 approval
Impact
2012
2016
Net
Approval
Modification
Change
Permanent
Zone 1
6,985 SF
6,070 SF
-915 SF
Permanent
Zone 2
6,710 SF
7,080 SF
+370 SF
Temporary
0
3855 SF
+3855 SF
Zone 1
Temporary
Zone 2
0
2561 SF
+2561 SF
421 Fayetteville Street, Suite 600, Raleigh, NC 27601

Kim ep Horn Page 2
Additionally, the following revised information has been included with this modification request
❑ Revised Riparian Buffer Authorization Form
❑ Revised Permit Drawing
❑ Revised Plan Sheet
❑ Original Buffer Authorization dated June 13, 2012
If there is any additional information that you need to assist in the processing of this Riparian Buffer
Authorization Modification request, please do not hesitate to contact me at 919-678-4155 or
Jason [e-mail].
Sincerely,
Jason Hartshorn
Environmental Analyst
Attachments
421 Fayetteville Street, Suite 600, Raleigh, NC 27601

DWR
State of North Carolina
Department of Environment and Natural Resources
Division of Water Resources Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b), .0259 (8)(b), .0267 (11)(c), .0607 (e)(2) — Buffer Authorization
FORM: BA 10-2013
Riparian Buffer Authorization Form
A.
Applicant Information
1.
Project Information
1a.
Name of project.
TIP # U-4726DE — Homestead -Chapel Hill High School Multi -Use Path
1 b
County:
Orange
1c.
Nearest municipality.
Carrboro
1d. Subdivision name.
N/A
1e.
Is the project located in any of North Carolina's
twenty coastal counties If yes, answer 1f below
❑ Yes ® No
1f
Is the project located within a NC Division of Coastal
Management Area of Environmental Concern (AEC)?
❑ Yes ® No
2.
Owner Information
2a.
Name on Recorded Deed:
Town of Carrboro (via linear transportation easement), crossing State of NC, Parker
Louis LLC; and Claremont Homeowners Association property.
2b
Deed Book and Page No
1750/470, 4433/17, 5030/353
2c Map Book and Page No
(include a copy of the recorded
map that indicates when the lot
was created):
n/a
2d.
Responsible Party
(for Corporations):
Tina Moon
nn niwir=
2e
Street address
301 W Main Street
2f.
City, state, zip
Carrboro, NC 27510
2g
Telephone no
919-918-7325
2h.
Fax no.:
21.
Email address-
[e-mail] 01 BU%FF ESOUR ES
3.
Applicant Information (if different from owner)
3a
Applicant is
® Agent ❑ Other, specify-
pecify3b.
3b.Name:
3c
Business name
(if applicable) -
3d.
Street address
3e. City, state, zip
3f
Telephone no.:
3g.
Fax no:
Jh
Email address
FORM: BA 10-2013 Page 1 of 7

Section A. Applicant Information, continued
4.
Agent/Consultant Information (if applicable)
4a. Name-
Jason Hartshorn
4b.
Business name
(if applicable) -
Kimley-Horn
4c.
Street address:
421 Fayetteville Street, Suite 600
4d. City, state, zip:
Raleigh, NC 27601
4e
Telephone no.-
919-678-4155
4f.
Fax no:
4g
Email address:
Jason [e-mail]
FORM: SSGP3080 8-13 Page 2 of 7

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no (tax PIN or parcel ID)-
n/a -- linear transportation project crossing
9779573920;9779476533;9779481225
1b
Site coordinates (in decimal degrees):
Latitude: 36.027201
Longitude- -78 86556
1c
Property size:
30.69; 33.34; 8 08 acres
2.
Surface Waters
2a
Name of nearest body of water to proposed project
Bolin Creek
2b. Water Quality Classification of nearest receiving water:
C; NSW
2c.
River basin:
Cape Fear (Jordan Lake Watershed)
3.
Project Description
3a
Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The proposed greenway is located in undeveloped, forested lands. The proposed multi -use trail begins at the
Claremont neigborhood north of Homestead Road, extends east under Homestead Road and then through the
Carolina North Forest to Chapel Hill High School at the Town of Carrboro/Town of Chapel Hill boundary. Land use
in the vicinity of the project is primarily residential.
3b.
Attach an 8 % x 11 excerpt from the most recent version of the USGS topographic map indicating the location of
the site
3c
Attach an 8'/ x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site
3d
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
2,200 LF
3e
Explain the purpose of the proposed project:
The Town of Carrboro is proposing to provide a multi -use path beginning at the Claremont neigborhood north of
Homestead Road, extending east under Homestead Road and through the Carolina North Forest to Chapel Hill
High School at the Town of Carrboro/Town of Chapel Hill boundary
3f
Describe the overall project in detail, including the type of equipment to be used'
The proposed improvements will include the construction of the multi -use path, and one single span bridge
Typical roadway construction equipment will be utilized including excavators, backhoes, graders, dump trucks,
cranes, and asphalt pavers.
4.
Jurisdictional Determinations
4a
Have jurisdictional wetland or stream determinations by the
® Yes ❑ No ❑ Unknown
Corps or State been requested or obtained for this property/
Comments. A Preliminary JD for the project
project (including all prior phases) in the past?
was issued on May 24, 2012 NCDWQ
preformed a stream determination on April
17, 2012.
4b.
If yes, who delineated the jurisdictional areas?
Agency/ Consultant Company Kimley-Horn
Name (if known): Anna Reusche
Other -
4c
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation
A Preliminary JD was issued for the project on 5/24/2012 (Action ID 2012-00857), and NCDWQ preformed a
stream determination field review on April 17, 2012
5.
Project History
5a.
Have permits or certifications been requested or obtained for this
®Yes El No El Unknown
project (including all prior phases) in the past?
5b
If yes, explain and detail according to "help file" instructions.
This request is a modification to an existing Buffer Authorization (NCDWQ Project #12-0497).
FORM: BA 10-2013 Page 3 of 7

B. Project Information and Prior Project History
6. Future Project Plans
6a. Is this a phased project? ❑ Yes ® No
6b. If yes, explain
n/a
FORM: SSGP3080 8-13 Page 4 of 7

C. Proposed Impacts Inventory
1. Buffer Impacts
1a. Project is in which protected basin?
® Neuse ❑ Tar -Pamlico ❑ Catawba
❑ Randleman ❑ Jordan ❑ Goose Creek
1b. Individually list all buffer impacts below.
If any impacts require mitigation, then you MUST fill out Section D of this
form
Buffer impact
Reason for
Type of Impact
Stream name
Buffer
Zone 1
Zone 2
number —
Impact
(exempt, allowable,
mitigation
impact
Impact
Permanent (P)
allowable w/ mitigation)
required?
(sq ft)
(sq ft)
or Temporary T
Site 1
Greenway
Allowable
Bolin Creek
❑ Yes ® No
6,985
6,710
®P ❑ T
Construction
Site 1
Greenway
Allowable
Bolin Creek
❑ Yes ® No
3,855
2,561
❑ P ® T
Construction
Total buffer impacts
6,985
6,710
(P)
(P)
3,855
2,561
(T)
(T)
1c. Comments -
Proposed Impacts to the riparian buffer of Bolin Creek will result from the construction of a greenway path. To ensure
the safe passage of utility vehicles around the proposed pedestrian bridge, the greenway construction will also build
an emergency access path for maintenance vehicles that are travelling the utility easement crossing beneath the
bridge.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a Specifically describe measures taken to avoid or minimize the proposed impacts in designing project
Direct impacts to streams in the project corridor have been completely avoided by spanning Bolin Creek with a
pedestrian bridge Impacts to the riparian buffer have been minimized to the extent practical by using a perpendicular
crossing above Bolin Creek The propose alignment also curves out away from Bolin Creek to minimize impacts
where practical and set up the perpendicular crossing.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques.
Silt fencing and other sediment control measures will be installed and utilized throughout construction to minimize
sedimentation impacts to downstream receiving waters. Where feasible, staging and construction access will be
located in upland areas throughout the corridor, equipment will be located within the project corridor at all times,
especially near streams and riparian buffer areas.
FORM: BA 10-2013 Page 5 of 7

C. Impact Justification and Mitigation, continued
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
❑ Yes ® No
2b If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below
Zone Reason for impact
Total impact Multiplier Required mitigation
(square feet) (square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
Total buffer mitigation required: 0
2c If buffer mitigation is required, is payment to a
mitigation bank or NC EEP proposed?
❑ Yes ® No
2d If yes, attach the acceptance letter from the mitigation bank or NC EEP.
2e If no, then discuss what type of mitigation is proposed.
n/a
2f. Comments Per the Neuse River Basin riparian buffer rules, greenway paths are considered "allowable" and do
not require mitigation.
FORM: SSGP3080 8-13 Page 6 of 7

E. Diffuse Flow Plan
All buffer Impacts and high ground impacts require diffuse flow or other form of
® Diffuse flow
stormwater treatment Include a plan that fully documents how diffuse flow will be
❑ Other BMP
maintained If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
1 a.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
® Yes ❑ No
plan for stormwater treatment as outlined In Chapter 8 of the NC Stormwater BMP
public (federal/state) land?
Manual and attach a BMP Supplement Form.
1 b.
F.
Supplementary Information
by First Class Mail via the US Postal Service:
1.
Environmental Documentation
OR NC DWR, Transportation Permitting Unit
1 a.
Does the project Involve an expenditure of public (federal/state/local) funds or the use of
® Yes ❑ No
Raleigh, NC 27604
public (federal/state) land?
For all other projects sent by delivery service
1 b.
If you answered "yes" to the above, does the project require preparation of an
® Yes ❑ No
OR Karen Higgins
environmental document pursuant to the requirements of the National or State (North
NCDWR — 401 & Buffer Permitting Unit
1650 Mail Service Center
Carolina) Environmental Policy Act (NEPA/SEPA)?
Raleigh, NC 27699 - 1650
1 c.
If you answered "yes" to the above, has the document been finalized by the State
❑ Yes ® No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter)
Comments: A Programmatic Categorical Exclusion was approved by NCDOT on May 4,
2012
2.
Violations
2a.
Is the site In violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland
❑ Yes ® No
Rules (15A NCAC 02H .1300), DWR Surface Water or Wetland Standards, or Riparian
Buffer Rules (15A NCAC 02B .0200)?
2b
Is this an after -the -fact permit application?
❑ Yes ® No
2c
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s)
n/a
Jason Hartshorn �— �� ' 6/14/16
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided )
Send 3 complete sets of this form and accompanying documents to the following -
For government transportation projects sent
For government transportation projects sent
by First Class Mail via the US Postal Service:
by delivery service (UPS, FedEx, etc):
NC DWR, Transportation Permitting Unit
OR NC DWR, Transportation Permitting Unit
1650 Mail Service Center
512 N. Salisbury Street
Raleigh, NC 27699 - 1650
Raleigh, NC 27604
For all other projects sent by First Class Mail
For all other projects sent by delivery service
via the US Postal Service
(UPS, FedEx, etc.):
Karen Higgins
OR Karen Higgins
NCDWR — 401 & Buffer Permitting Unit
NCDWR — 401 & Buffer Permitting Unit
1650 Mail Service Center
512 N Salisbury Street
Raleigh, NC 27699 - 1650
Raleigh, NC 27604
FORM: BA 10-2013 Page 7 of 7

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NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Town of Carborro
Attn: Jeff Brubaker
301 W. Main Street
Carrboro, NC 27510
Subject Property:
Division of Water Quality
Charles Wakild PE
Director
June 13, 2012
Dee Freeman
Secretary
DWQ Project # 12-0497
Orange County
Homestead — Chapel Hill High School Multi -Use Path Project
Bolin Creek [030606, 16-41-1-15-1-(4), WS -IV; NSW]
Jordan Lake Water Supply Watershed Riparian Buffer Protection Rules (15A NCAC 2B.0267)
Authorization Certificate with additional conditions
Dear Mr. Brubaker:
You have our authorization, in accordance with 15A NCAC 02B .0267 and any conditions listed below, to impact
approximately 6,985 if of Zone 1 and 6,710 fl? of Zone 2 of the protected riparian buffers to construct a
greenway, as described within your application dated May 11, 2012 and received by the Division of Water
Quality (DWQ) on May 23, 2012. In addition, you should obtain or otherwise comply with any other required
federal, state or Iocal permits before you go ahead with your project including (but not limited to) Erosion and
Sediment Control, Non -discharge regulations.
This authorization certification is for the purpose and design that you described in your application. If you change
your project, you must notify us and you may be required to send us a new application. If the property is sold, the
new owner must be given a copy of this authorization letter and is thereby responsible for complying with all
conditions. This authorization requires you to follow the conditions listed below.
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general conditions of
this Certification (or Isolated Wetland Permit) are met. No other impacts are approved including
incidental impacts:
Amount Approved Units Plan Location or Reference
Zone I Buffers 6,985 (square ft.permanent impact PCN page 7 of 12
Zone 2 Buffers 6,710 (square ft.) permanent impact PCN page 7 of 12
Nonr thCarolina
�aturallr�
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet www ricwatercluality org 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
An Equal Opportunity/Affirmative Acbon Employer — 50% Recycled/1 o% Post Consumer Paper

Page 2
2. Erosion & Sediment Control Practices
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:
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.
3. No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the
footprint of the impacts depicted in the Pre -Construction Notification. All construction activities,
including the design, installation, operation, and maintenance of sediment and erosion control Best
Management Practices, shall be performed so that no violations of state water quality standards, statutes,
or rules occur.
4. No Sediment & Erosion Control Measures w/n Wetlands or Waters
Sediment and erosion control measures shall not be placed in wetlands or waters without prior approval
by the Division. If placement of sediment and erosion control devices in wetlands and waters is
unavoidable, design and placement of temporary erosion control measures shall not be conducted in a
manner that may result in dis-equilibrium of wetlands or stream beds or banks, adjacent to or upstream
and down stream of the above structures. 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 Land Resources or locally
delegated program has released the project.
5. Diffuse Flow
All stormwater shall be directed as diffuse flow at non-erosive velocities through the protected stream
buffers and will not re -concentrate before discharging into the stream as identified within 15A NCAC 2B
.0267
6. Protective Fencing
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved under this authorization shall be clearly marked with orange warning fencing (or
similar high visibility material) for the areas that have been approved to infringe within the buffer,
wetland or water prior to any land disturbing activities to ensure compliance with 15A NCAC 2H.0500.
7. Notification of Project Commencement
Please notify DWQ (Lauren Witherspoon at [phone] or lauren.witherspoongncdenr.gov) of the
proposed start date of the project.

Page 3
8. Certificate of Completion
Upon completion of all work approved within this authorization, and any subsequent modifications, the
applicant is required to return the attached certificate of completion to the Wetlands, Buffers, Stormwater,
Compliance and Permitting Unit, North Carolina Division of Water Quality, 1650 Mail Service Center,
Raleigh, NC, 27699-1650.
Any disputes over determinations regarding this Authorization (associated with the approved buffer
impacts) shall be referred in writing to the Director within thirty (30) days of receipt of this notice for a decision.
You can contest the Director's decision as provided in Articles 3 and 4 of G.S. 150B. To contest the
Director's decision you must file a petition for an administrative hearing. You may obtain the petition form from
the office of Administrative hearings. You must file the petition with the office of Administrative Hearings
within sixty (60) days of receipt of this notice. A petition is considered filed when it is received in the office of
Administrative Hearings during normal office hours. The Office of Administrative Hearings accepts filings
Monday through Friday between the hours of 8:OOam and 5:OOpm, except for official state holidays. The original
and one (1) copy of the petition must be filed with the Office of Administrative Hearings.
The petition may be faxed -provided the original and one copy of the document is received by the Office of
Administrative Hearings within five (5) business days following the faxed transmission.
The mailing address for the Office of Administrative Hearings is:
Office of Administrative Hearings
6714 Mail Service Center
Raleigh, NC 27699-6714
Telephone: [phone], Facsimile: (919)-733-3478
A copy of the petition must also be served on DENR as follows:
General Counsel
Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, NC 27699-1601
This Authorization shall expire five (S) years from the date of this letter.

Page 4
This letter completes the review of the "No Practical Alternatives" determination under 15A NCAC 2B .0267. If
you have any questions please call Lauren Witherspoon at [phone]. This letter does not authorize any
impacts to either Waters of the United States or Waters of the State. Please contact the US Army Corps of
Engineers (USACE) or NC Division of Water Quality (DWQ) if any impacts are proposed to waters on this
project.
jly,
Danny Smi
Surface Water Protection Section Supervisor
Raleigh Regional Office
Enclosures: Certificate of Completion
cc: DWQ Central Office — WeBSCaPe — 1650 Mail Service Center
RRO File Copy
Anna Reusche — Kimley-Horn and Associates, Inc., 3001 Weston Parkway, Cary, NC 27513
Filename: 12-0497 Homestead -Chapel Hill High School Muld-Use Path Project MR Approval

WJ
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, PE
Governor Director
DWQ Project No.:
Applicant:
Project Name:
County:
Date of Issuance of 401 Water Quality Certification:
Certificate of Completion
Dee Freeman
Secretary
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, and any
subsequent modifications, the applicant is required to return this certificate to the 401/Wetlands Unit, North Carolina Division
of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27694-1650. This form may be returned to DWQ by the applicant,
the applicant's authorized agent, or the project engineer. It is not necessary to send certificates from all of these.
Applicant's Certification
I, , hereby state that, to the best of my abilities, due care and diligence was used
in the observation of the construction such that the construction was observed to be built within substantial compliance and
intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other supporting
materials.
Signature:
Agent's Certification
Date:
I, , hereby state that, to the best of my abilities, due care and diligence was used
in the observation of the construction such that the construction was observed to be built within substantial compliance and
intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other supporting
materials.
Signature:
Date:
If this project was designed by a Certified Professional
I, 'as a duly registered Professional (i.e., Engineer, Landscape
Architect, Surveyor, etc.) in the State of North Carolina, having been authorized to observe (periodically, weekly, full time)
the construction of the project, for the Permitee hereby state that, to the best of my abilities, due care and diligence was used
in the observation of the construction such that the construction was observed to be built within substantial compliance and
intent of the 401 Water Quality Certification and Buffer Rules, the approved plans and specifications, and other supporting
materials.
Signature: Registration No.
Date
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 512 N Salisbury St Floor 9 Raleigh North Carolina 27604-1170 One
Phone [phone] FAX. [phone] NorthCarohna
Internet: www,ncwaterquaiity.org
An Equal Opportunity 1 Aff rmatrve Action Employer Ammaallty