20000957 Ver 2_Application_20140219

WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
1410 COMMONWEALTH DRIVE, SUITE 1o1
WILMINGTON, NORTH CAROLINA, 28403
[phone]
FAX [phone]
TO: NC Division of Water Resources
512 N. Salisbury Street; 9`h Floor
Raleigh, NC 27604
WE ARE SENDING YOU
❑ Shop Drawings
❑ Copy of Letter
0 0 - (DOG-1 02_
DATE 2/19/2014
JOB NO. 02130002.00
ATTENTION
Ms. Karen Higgins
PHONE# [phone]
RE: North Shore Condos — Raleigh, Wake Count
Buffer Authorization Request Submittal
021 0002.00
Buffer Authorization Request
1
2/19/2014
021 0002.00
®Attached ❑ Under separate cover via
❑ Prints ❑ Plans ❑ Samples
❑ Change order ❑ Diskette ❑
the following items:
❑ Specifications
COPIES
DATE
NO.
DESCRIPTION
2/19/2014
021 0002.00
Buffer Authorization Request
1
2/19/2014
021 0002.00
CD of Application Packet
THESE ARE TRANSMITTED as checked below:
® For approval ❑ Approved as submitted
❑ For your use ❑ Approved as noted
❑ As requested ❑ Returned for corrections
❑ For review and comment ❑
❑ FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US
❑ Resubmit
❑ Submit
❑ Return
copies for approval
copies for distribution
corrected prints
REMARKS:
COPY T0: File
SIGNED: Martin Richmond
if enclosures are not as noted, kindly notify us at once.

WITH ERS RAVEN EL
E N G IN E E R S I PLANNERS I SURVEYORS
February 19, 2014
NC- Division of Water Resources
401 & Buffer Permitting Unit
Attn: Ms. Karen Higgins
165o Mail Service Center.
Raleigh, North Carolina 27699
Re: Riparian Buffer Authorization PCN Submittal
North Shore Condominiums — Phase I, Centennial Campus NC State University
Raleigh, NC Wake County
W &R Project #02130002.00
Previous DWQ Project # 000957
Dear Ms. Higgins,
On behalf of NC State University, Withers & Ravenel is requesting authorization from the NC Division of Water
Resources for 2,746 square feet of riparian buffer impact associated with the completion of construction of the
North Shore Condominiums at Centennial Campus, NC State University in Raleigh, NC.
North Shore Condominiums is located on the NC State University Centennial Campus in the northeast quadrant of
the intersection of Campus Shore Drive and Twin Branches Way in Raleigh, Wake County, North Carolina. The
proposed project area is specifically located east of Capability Drive at Latitude: 357685 °N; Longitude: -
78.6811 °W. The proposed project is located in the Neuse River Basin (HUC 03020201) and onsite waters drain to
Lake Raleigh. The Water Quality Classification for Lake Raleigh is Class B, Nutrient Sensitive Waters (NSW), and the
stream index number is: 27-34-(3.5).
Proposed Project
The proposed project consists of the construction of a residential condominium development, with associated
infrastructure (i.e. roads, parking, utilities and stormwater management) along South Capability Drive, Twin
Branches Way and Campus Shore Drive in the NC State University Centennial Campus.
Project History
The conceptual plan for the proposed development was first developed in the early 19go's as part of the overall
development of Centennial Campus. Mr. Todd Tugwell of the US Army Corps of Engineers issued a Jurisdictional
Determination (AID# SAW - 1998-21136) for the tract in 1998. In 2oo1, a 404 Permit /401 Certification and Riparian
Buffer Authorization were issued to NC State for a stream crossing (providing access to and completion of
Capability Drive) and fill of 0.0426 acres of wetlands (facilitating access to western portion of the property). These
proposed impacts were competed in approximately 2005.
The Approved 401 Certification, issued December 7, 2000, required subsequent submittal and written approval for
proposed riparian buffer impacts and stormwater management plan. Written approval was issued by the NC DWQ
on July 20, 2001 (DWQ Project # 000957). In the approved plans, riparian buffer impacts were depicted within
115 MacKenan Drive I Cary, NC 275111 tel.: [phone] fax: [phone] www.withersravenel.com I License No. C -0832
1410 Commonwealth Drive I Suite 101 Wilmington, NC 28403 1 tel: [phone] fax: [phone]
7011 Albert Pick Road I Suite G Greensboro, NC 27409 1 tel: [phone] fax: [phone]

Riparian Buffer Authorization
North Shore Condominiums — Phase I
February 19, 2014
Page 2
Zone 2; however, no specific square footage was included, but the approved site plan proposed impacts to Zone 2
atong the entire western bank of the North Creek Pond.
Following the construction activities associated with the Capability Drive road crossing, the project went idle,
beginning in approximately 20o6 due to the downturn of the economy. Work has now resumed with the
development as originally approved. Due to the time lapse white the project was idle, the approved buffer
authorization has expired. This submittal is for the re- authorization of the previously- approved riparian buffer
impacts. The 404 Permit /401 Certification does not need to be re- issued as the previously approved wetland and
stream impacts were completed prior to expiration of the authorizations. Copies of the Dec 7, 2000 NCDWQ 401
Certification, the approval letter for buffer impacts and stormwater management (dated July 20, 2oo1) and the
approved site plans are included in the attachments with this submittal.
The NC Clearing House issued a Finding of No Significant Impact ( FONSI) letter for the Centennial Campus
Development in 20oo during the initial stages of permitting of the project. A copy of the NC Clearing House FONSI
letter has been provided as an attachment.
Proposed Impacts
The proposed impacts consist of grading, fill, and re- vegetation of approximately 2,746 square feet of Zone 2 of the
riparian buffers associated with a stormwater pond constructed in -tine of North Creek on the east side of the
development project. The proposed fill is required as part of the construction of a rear access road (alleyway) for
the condominium project (a non - perpendicular road impact). Please note that the proposed fill /parallel buffer
impacts were previously approved by the NCDWQ 4o1 WQC (DWQ Project # 000957) issued in 20o1 and we are
requesting re-certification for these impacts.
Avoidance and Minimization
The proposed buffer impacts were previously approved in the July 20, 2001 letter from John Dorney to NC State
University (as required in Condition 2 of the approved 401 Certification dated Dec 7, 2000). Impacts associated
with the road construction and fill were completed prior to 2oo5, and the project went idle in approximately 2oo6
fottowing the initial site work.
The previous approval authorized impacts to Zone 2 of the North Creek Pond riparian buffers along the entire
western bank. The rear access road design has been revised to reduce and minimize the proposed buffer impacts
from the impacts previously approved. The proposed design has been revised to minimize buffer impacts to the
Zone 2 buffers along the west bank of North Creek Pond for the construction of the rear access road (alleyway).
The encroachment of fill for the construction of the rear access road is the result of the City of Raleigh requirements
regarding the widening of Twin Branches Way, which pushed the rear access road farther east. As a result,
encroachment into Zone 2 from the back slopes stabilizing fill associated with the rear access road could not be
avoided. However, it should be noted that the redesign of the proposed project has resulted in a significant
minimization of buffer im pacts from the originally approved design.
The proposed impact area within Zone 2 will be re- vegetated to provide diffuse flow.
Design measures were taken to avoid the placement of roadways, parking areas, or other impervious surfaces in
the buffer. This authorization includes no impacts to streams orwettands on the property.
Mitigation
The proposed fill associated with the construction of the rear access road is considered a non - perpendicular road
impact, and according to the Neuse River Riparian Buffer Rules /Table of Uses, this activity is allowable with
WITHERS RAVENEL
ENGINEERS I PLANNERS I SURVEYORS

Riparian Buffer Authorization
North Shore Condominiums — Phase I
February 19, 2014
Page 3
mitigation. The applicant proposes to purchase 4,119 square feet of riparian buffer credits from EBX within the
Forrest Creek Riparian Buffer Mitigation Bank. A copy of the letter of reservation has been provided as an
attachment.
Stormwater Management & Diffuse Flow
The Stormwater Management Plan was approved by NC State University on February 17, 2014. The proposed
development utilizes two BMPs with constructed wetlands, both located outside the riparian buffer. The
constructed wetlands achieve 3o% nitrogen removal, and outfall rates will be at non - erosive velocities and diffuse
flow is achieved and level spreaders are not required. Additionally, the southern portion of the parking area will
not be constructed with use of curb and gutter, allowing for diffuse sheet flow from the impervious area into the
buffer.
Copies of the design criteria for the two constructed wetlands and the level parking area, along with BMP
supplement forms are included as an attachment with this application.
Summary
The current request is for authorization of 2,746 square feet of riparian buffer associated with the construction of a
rear - access road resulting in non - perpendicular buffer impacts for the proposed condominiums (see attached
maps and Buffer Authorization form).
Please feel free to call if you have questions or require additional information.
Sincerely,
Martin Richmond
Environmental Scientist
Attachments:
• PCN Form
• Agent Authorization
• USGS Topographic Map (Raleigh West)
• NRCS Wake County Soil Survey (Sheet 58)
• Prior 401 Certification Approvals (Dec 2000, July 2001) &Approved Site Plan
• NC Clearing House Letter of FONSI
• Letter of Reservation for Buffer Mitigation from EBX
• NSCU Stormwater Plan Approval
• Diffuse Flow Information
• Buffer Impact Exhibits
WITHERS RAVENEL
ENGINEERS I PLANNERS I SURVEYORS

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
1 a.
Name of project:
North Shore Condominiums - Phase I (NCSU Centennial Campus Raleigh, NC)
1 b.
County:
Wake
1 c.
Nearest municipality:
Raleigh
1 d.
Subdivision name:
North Shore Condominiums Centennial Campus
1 e.
Is the project located in any of North Carolina's
twenty coastal counties. If yes, answer 1 f 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:
Board of Trustees of the Endowment Fund of NC State University
2b.
Deed Book and Page No.
Book 10522 Page 0851
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created):
2d.
Responsible Party
(for Corporations):
Charles D. Leffler, Treasurer
2e.
Street address:
NCSU Campus Box 7501
2f.
City, state, zip:
Raleigh, NC 27695 -7501
2g.
Telephone no.:
(919) 515 -2155
2h.
Fax no.:
2i.
Email address:
3.
Applicant Information (if different from owner)
3a.
Applicant is:
❑ Agent ❑ Other, specify:
3b.
Name:
3c.
Business name
(if applicable):
3d.
Street address:
3e.
City, state, zip:
3f.
Telephone no.:
3g.
Fax no.:
3h.
Email address:
4.
Agent/Consultant Information (if applicable)
4a.
Name:
Martin Richmond
4b.
Business name
(if applicable):
Withers & Ravenel
4c.
Street address:
115 MacKenan Drive
4d.
City, state, zip:
Cary, NC 27511
4e.
Telephone no.:
(919) 469 -3340
4f.
Fax no.:
4g.
Email address:
m rich mond(cD-withersravene1.com
FORM: BA 10 -2013 Page 1 of 6

B.
Project Information and Prior Project History
1.
Property Identification
1 a.
Property identification no. (tax PIN or parcel ID):
Wake County PIN # 0793441504000
1 b.
Site coordinates (in decimal degrees):
Latitude: 35.7685
Longitude: - 78.6811
1 c.
Property size:
13.46 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Lake Raleigh (Walnut Creek) Index #: 27- 34 -(3.5)
2b.
Water Quality Classification of nearest receiving water:
Class B, NSW
2c.
River basin:
Neuse - (HUC: 03020201)
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:
Project site is a proposed (and partially constructed) condominium project located at Centennial Campus — NC
State University. Original site plans were approved by DWQ in 2001. Construction at the site began in 2002. The
proposed project area was cleared, graded and prepared for construction 2004 -2005. Project has been idle since
approximately 2006. The general land use in the vicinity of the project consists of a mixture of residential,
commercial and institutional land use.
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:
N/A — There are no streams within the proposed project area.
3e.
Explain the purpose of the proposed project:
The purpose of the proposed project is to complete construction of the North Shore Condominium project, which
was originally approved in 2001 (NCDWQ Project #000957). The proposed project consists of the construction of
residential condominium buildings and associated infrastructure (i.e. roads, parking, utilities and stormwater
management).
3f.
Describe the overall project in detail, including the type of equipment to be used:
The project consists of the construction of residential condominiums and associated infrastructure (i.e. roads,
parking, utilities and stormwater management). Condominium buildings will face an existing roadway, with a
narrow road in rear of units providing access for parking and rear ingress /egress. Construction will be typical
residential construction techniques using typical construction equipment.
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: JD was provided by Corps in
project (including all prior phases) in the past?
September 1998 as part of initial site
planning, permitting, and stormwater
approval.
4b.
If yes, who delineated the jurisdictional areas?
Agency/ Consultant Company: US Army
Name (if known): Todd Tugwell
Corps of Engineers
Other:
4c.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
AID #SAW -1998- 21136; issued September 17, 1998. (a copy is provided in the attachments)
FORM: BA 10 -2013 Page 2 of 6

Project Information and Prior Project History
5. Project History
5a. Have permits or certifications been requested or obtained for this
® Yes ❑ No ❑ Unknown
project (including all prior phases) in the past?
5b. If yes, explain and detail according to "help file" instructions.
401 Certification /Buffer Authorization was issued Dec 2000 by NC DWQ (DWQ Project #000957). Condition #2 of
the 401 Certification requires subsequent written approval for riparian buffer impacts and stormwater
management. Written approval of Condition # 2 of the 401 Certification was issued by NC DWQ July 20, 2001.
The proposed buffer impacts included with this approval were not constructed (project went inactive). The
previous buffer authorization expired prior to completion of the approved buffer impacts, and re- authorization of
the proposed buffer impact is being requested. No 404 or 401 impacts are requested with this application.
6. Future Project Plans
6a. Is this a phased project?
® Yes ❑ No
6b. If yes, explain.
Condominiums are being built in phases, however all impacts necessary for completion of construction of the
North Shore Condominium project are being addressed under this PCN.
FORM: SSGP3080 8 -13 Page 3 of 6

C. Proposed Impacts Inventory
1. Buffer Impacts
1 a. Project is in which protected basin?
® Neuse ❑ Tar - Pamlico ❑ Catawba
❑ Randleman ❑ Jordan ❑ Goose Creek
1 b. Individually list all buffer impacts below. If any impacts require mitigation, then you MIUST 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)
Impact #1
Rear Access
Allowable with
UT to Lake
® Yes ❑ No
0
2,746
® P ❑ T
Road
mitigation
Raleigh
Total buffer impacts
0
2,746
1 c. Comments: Proposed impacts will occur from construction of the rear access road (alleyway) which will provide
access to parking in the rear of the building. This impact is considered a non - perpendicular road crossing, which
is classified as `Allowable with Mitigation" in the Table of Uses.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The proposed buffer impacts were previously approved in the July 20, 2001 letter from John Dorney to NC State
University (as required in Condition 2 of the approved 401 Certification dated Dec 7, 2000). Impacts associated with
the road construction and fill were completed prior to 2005, and the project went idle in approximately 2006 following
the initial site work.
The previous approval authorized impacts to Zone 2 of the North Creek Pond riparian buffers along the entire western
bank. The rear access road design has been revised to minimize the proposed buffer impacts from the previously
approved buffer impacts. The proposed design has been revised to minimize buffer impacts to the Zone 2 buffers
along the west bank of North Creek Pond for the construction of the rear access road (alleyway). The encroachment
of fill for the construction of the rear access road is the result of the City of Raleigh requirements regarding the
widening of Twin Branches Way, which pushed the rear access road farther east. As a result, encroachment into Zone
2 from the back slopes stabilizing fill associated with the rear access road could not be avoided. However, it should
be noted that the redesign of the proposed project has resulted in a significant minimization of buffer impacts from the
originally approved design.
The proposed impact area within Zone 2 will be re- vegetated to provide diffuse flow.
Design measures were taken to avoid the placement of roadways, parking areas, or other impervious surfaces in the
buffer. This authorization includes no impacts to streams or wetlands on the property.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Construction will avoid heavy equipment within the buffer zone as much as possible. Buffer will be clearly marked
and non - impact approved areas will be protected through silt fencing and /or other necessary erosion and
sediment control devices.
FORM: BA 10 -2013 Page 4 of 6

2.
Buffer Mitigation
❑ Diffuse flow
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
(square feet)
Multiplier
Required mitigation
(square feet)
Zone 1
None
February 17, 2014. This plan provides for the use of two (2) constructed wetlands
3 (2 for Catawba)
0
Zone 2
Construction of Rear Access Road
2,746
1.5
4,119
allowing diffuse flow off the impervious area and into the riparian buffer. A copy of the
Total buffer mitigation
required:
4,119
2c.
If buffer mitigation is required, is payment to a
mitigation bank or NC EEP proposed?
® Yes ❑ No
material.
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.
2f.
Comments: The applicant will purchase 4,119 sq ft of riparian buffer mitigation from EBX within the Forrest Creek
Mitigation Bank. A copy of the Letter of Reservation has been provided as an Appendix.
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.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
Manual and attach a BMP Supplement Form.
A stormwater management plan for the site was approved by NC State University on
February 17, 2014. This plan provides for the use of two (2) constructed wetlands
located on the eastern and southern sides of the development and designated BMP #1
Wetland and BMP #2 Wetland. A portion of the paved parking area at the southernmost
end of the development will be constructed level, and without use of curb and gutter,
allowing diffuse flow off the impervious area and into the riparian buffer. A copy of the
approval letter issued by NC State University, as well as Constructed Wetland
Supplemental Forms for both BMPs are provided as an Appendix.
Diffuse flow for the area of buffer impact will be achieved through re- vegetation of the fill
material.
FORM: SSGP3080 8 -13 Page 5 of 6

F.
Supplementary Information
1.
Environmental Documentation
1 a.
Does the project involve an expenditure of public (federal /state /local) funds or the use of
® Yes ❑ No
public (federal /state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
® Yes ❑ No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act (NEPA/SEPA)?
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: The NC Clearing House issued a Finding of No Significant Impact (FONSI) letter
for
the Centennial Campus Development in 2000 during the initial stages of permitting of the
project. A copy of the NC Clearing House FONSI letter has been provided as an attachment.
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):
Martin Richmond — W &R
Authorized Agent
Applicant /Agent's Printed Name
Applicant /Agent's Signature
Send 3 complete sets of this form and accompanying documents to the following:
2/19/2014
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
Date
FORM: SSGP3080 8 -13 Page 6 of 6

AGENT AUTHORIZATION FORM

WITHERS &J RAVEN EL
ENGINEERS j PLANNERS i SUl VFYGR5
AUTHORITY FOR APPOINTMENT OF AGENT
The undersigned Owner Charles D. Leffler (Client) does hereby appoint Troy Beasley /
Withers & Ravenel, Inc. as his, her, or it's agent for the purpose of petitioning the appropriate
local, state and federal environmental regulatory agencies (US Army Corps of Engineers, NC
Division of Water Quality, NC Division of Coastal Management, local municipalities, etc.) for: a)
review and approval of the jurisdictional boundaries of onsite jurisdictional areas (wetlands,
surface waters, riparian buffers, etc.) and/or; b) preparation and submittal of appropriate
environmental permit applications /requests for the North Shore Condominiums -- Phase 1
(NCSU Centennial Campus — Raleigh, NC).
The Client does hereby authorize that said agent has the authority to do the following acts on
behalf of the owner:
(1) To submit appropriate requests /applications and the required supplemental
materials;
(2) To attend meetings to give representation on behalf of the Client.
(3) To authorize access to subject property for the purpose of environmental
review by appropriate regulatory agencies.
This authorization shall continue in effect until completion of the contracted task or termination by
the Client.
Agent's Name, Address & Telephone:
Troy Beasley / Withers & Ravenel, Inc.
141.0 Commonwealth Drive, Suite 101
Wilmington, NC 28403
Tel. [phone]
Date:
Signature of Client:
Charles D. Leffler, Treasurer
(Name - Print) (Title)
NCSU Campus Box 7501
Mailing Address
Raleigh, NC 27695 -7501
City State Zip
Phone: [phone]
Email:
115 MacKenan Drive I Cary, NC 27511 � tel.: [phone] fax: [phone] www.withersravenel.com I License No. C -0832
1410 Commonwealth Drive I Suite 1011 Wilmington, NC 28403 1 tel: [phone] fax: [phone]
7011 Albert Pick Road I Suite G I Greensboro, NC 27409 1 tel: [phone]' Fax: [phone]

USGS QUAD MAP &
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PREVIOUS 401 CERTIFICATION APPROVALS
& APPROVED SITE PLAN

a�aF W A
L
July 20, 2001
Marc Recktenwald
NC State University
PO Box 8007
Raleigh, NC 27695 -8007
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
North Shore Development/
Capability Drive
Wake County
DWQ Project # 000957
Dear Mr. Recktenwald:
Kerr T. Stevens
Division of Water Quality
This Office is in receipt of stormwater management plans prepared on your behalf by Withers and Ravenel and dated June 17, 2001
for the subject project. The plans meet condition no. 2 in the Water Quality Certification and Neuse Buffer Approval issued by this Office
on December 7, 2000, and, as such, the above plans are hereby approved.
If you have any questions, please contact Todd St. John at 919 - 733 -9584.
f ' ey Unit Superv' or
cc: Raleigh DWQ Regional Office
Todd St. John
Brad Hart, PE, Withers and Ravenel, 111 MacKenan Drive, Cary, NC 27511
File Copy
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699 -1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604 -2260 (Location)
n- 100 110C /..L.. --N nln 11 C CC01 /L....\ L.N... / /L. /1.. - ♦...... i.. /.........sl n..l../

/2001 09:08 PAR 919 781 1262 CRAIG DAVIS PROPERTIES Y v` X003
./04 /70131 17:55 9145158426919
State of North Carolina
Department of Environment
and Natural Resources
Division at Water Quality
James S. Hunt, Jr., eavernor
Bill Holman, Secretary
Kerr T. Stevens, Director
NCSU REAL ESTATE PAGE 02/04
OEM Womonaamimpm-
1 �
NMTH C^ROLIrJA DEPARTMKW OF
EnVIgONMENT AND NATURAL RESOURCK'
December 19. 1000
Stale uC NC .fir hoar of Trugmas ut the andownxnt Fsnd
NC Hite Univcraity Wo (teal Ematc
M Box 72 -w
Wileigh. NC 376!x; -723A
Noah Shure Developmcat/
CuNVilhy Wive
W aka County
DWQ Prnjtce 0 000991
Ikal Madalm"Su.
11m. t)ly'i« lnle foLtivr(I rat, l,ed plans dated December 1.6. IWO &A subatitted on )►our botwlrpy tittlo sad Little Air Me
lu►►1 epreador adjavent to C apablllty Drive and round them to be aeeeptabll:• As such, eenditian no. 1 of the Wner Quality
Ccrtifkalion kwtd DoCember 7.2000 haw beca maL
1(74W Have .iny yue5tiunf.. please telephone Todd St, Jvim at 91St - 733.2384,
A:v ItisIvigh PWQ Reittonul 0111L:e
FlIc Vupy
k,enlral 1111m.
PILW Link, 1.1111C and little
merely.
b..-"
rDw�cY
lkwl Visit Supervisor
DEC 2000 V r+1
5 td
IECAVED is
HEAL MATE -nJ
5
.+ Jl
Division of Watar Quality • Non- DWIChar9e srallch
Non - Discharge branch, 1621 Mail SAnrioa Cantor Ralalgh NO 276WI621 Telephone [phone] FAX M-9959
An Equal Opportunity Aflimlafte Action Enlpioyar •
509L recyclOW 10% post cenllumar paper

UUM IUCK HUMES Fax:[phone] Mar 28 2001 14:07
,/2001 09:08 PAX 819 781 1262 CRAIG DAVIS PROPERTIES
A/B4/2001 17:55 9195156426519 NCSLJIWAL ESTATE
State of North Carolina
Department of Environment
and Natural Resources
Divislon of Water Quality
James B. Hunt, Jr., Governor
Bill Halman, Secretary
Kerr T, Stevens, Director
Sioie of Nl^ & Roard of "I'mittA of the Endowment Fund
NC hate University do Rcal Estate
PO Bt»► 7230
Rolcilih, ftlt'27(05 -7230
P. 03
IM 004
PAGE 03/04
6TL.?W,A
A&4
AM LM iL
NC ENR
14CO" CAROLINA DEPAMMBNT OF
ENVIRONMENT ^ND NQUI4AL RF-SOURCES
Deacmbcr 7,1000
Nnah shorn tr MIcipnwtit/
Capability Drive
WAka County
DWQ Ptojcut M 4110957
APPROVAL of ali t Watt:r Quality Certlfkarion and Ntruse River duffer Rttrltls
th.tr Mtulaaw/$tr!
yttij .a-c ttur:Approv,il. in t ccordnilce with the LOadlLtotta below. to impact 140 linear fees or suleam Cila9 ncl and
ri fwr'=tnt trinity r «r the rturpost: at' u rand crossing as described In gout -applia:ution dated curie 27, 2000 (rcvi ked ttilvvernber
Iv. 20UU) antl SiW, plvrr trvinit nsi dared Sxpta Ober 13, 7000. A fter revirwir g yatir application, we rtaue tsecMdrd that Lhis
fill I• +'I I"Ied Icy Girlie *rat Wxer Quality Col. 1111 CAA t0rs NUrl$er 3287, Thls Cenifi Cal ion 611ows you to ust Naliurwide
Per sutt Numher 39 when the Coypu Its finbtttom isms it. Thls appr4) vAl to aise valid For thr Ntuse R 4er htjavr rides (15A
NIL 'AC 10 02:13) hi atlditieu. you should get any aLher federal, state or lacol parnlits berure you go altrad wlih your
p1 1)1ito inn hiding tout 1% it I fill tell to) Sediment and l8roCon Control. Co=ral 5wrrnw0tor. Novi - Discharite uraJ WwItr
Supply Wt!tctd,cd ra¢gulatlons. Altto this appMral will expire when the ate6rnp2nyuiF 04 or CAMA permit expires
unlam.% atlleiwma ilpeclricd in the Ocnerul Cerfillcarion,
I. Ill imps v; ,;twit not occur until rt!vipAd plans hays been submlRed to And approved in writing by this ViYicre
tun Litt flow spreadimyf drvice ndjaent to Capability Drive. Tim flaw spremlitl6 devisC Omll too sized to be 70
i%!L'l 1111$ tlntlxisdlct)t:tr to khL 110w) rvr c.rry I era rttulling from a 10 year rain event,
3 TIH ry aliall lit cur grading conducted on Iltu portlnn of the site that uwlojes the proposed North Shurx
. lmnitiviv ctnnplex until UWiftnal sire plans are pr►tvidW to and rccelve written approval frurli this ❑t't'c r for
wrltten npprtwal. The site planA must cont4in dctsils tthowinr the Iociglons of uny prnrrosM buffer iMp4or. wul
tl►lails that isln7w eompiittnvi; With tlac SamKa suffer Rulas In r mwji to stnnnwater martagemem.
'I'Iu. al73rdval is only valid cur Ow purpose and 4csign that you *Scribed in your application. Lion. If you ehalage your
lutki••tt yviI n1it.t notify wi and -;end u3 it flaw npplicatiniv I ilic property Is sold, the new owner must be given a cupy 01'
till,. ('Citltit.' +tine anu approval leiscr sins is tliertby Twiponsiblc (orcomplying with all conditions Tins upprr+val shad
o %oire Ldwo 011 vinre..lhwJsng Nutionwidv Permit r1lsires of aS otlierwisr. pravidcd iit the Generol Certiiicatiun• Il'Lutal
WV� t:intl r,llr )ill IN!, prerjecl tlmw ur in the rulure) cxceca one stir, rempenxatary milLrutiun rniay he requitoo as dewritwil
taI I iA NC al' 211 A306 Ih). Far chill approval to be valid. you must rul low the vj.indaions lisred in she iitrucl+t:t!
rri I lit :11 1th
la 511+0 dtt rtsu urr<r fat why ot'the rwdhimjit of this renilivalion, ytw tr q atrsk Im an atiludicaLlory lilawring, 1'nu must
aVt *11IN0 M1 duy!s flf tho rate 1111111, you rcccive this leave. Tv aaik fur a houring, attrtd A written PcIlliOn. which 00111116rnta to
Curio, I %wi or oe NMI]) CArclinl C►eiirral Statutes to the Office of Admipisttrativa lieavingst P.O. Box 27447, Ralcipls,
NC 37611.7447 This, rertilication anti its vanditinns yrc rh%W 411d binding unlesat you ask for a Bering.
Division of Waier Quality - Non- Discharge Branch
Non•Dlaahatrge Blanch, 1621 Mail SerAce Caf1flr Raleigh NC 27068.1021 Telephone 919 - 733.1786 PAX 7:33.2959
Ah Equal Opparlunity ANlrmOltle Avlcm Srnployttr w
50% recycW&10% Doat Consurner paper

COMSTOCK HOMES Fax:[phone] Mar 28 2001 14:07
9/2001 09:08 PAX 919 781 1282 CRAIG DAVIS PROPERTIES
i/b4/2001. 17:55 9195158426919 NCSU REAL E5YATE
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
w
IZ005
PAGE 84/04
IT
4 ■
NC OLINA DEPARTMENT of
ENVIRONMENT AND NAruAAL RESOURCES
'1110 Mier complocs the rcvirw of Ike rAvision al, water Quaiily undcrSiodon 40100119 the Clean carter Act. li you
114YO any qucstums. plr iw trlepNtne John Derney at 919.733.9646.
erel
T, trw a
Aunrhmum
Cc wilminglun I]iclrrli ('I lrp% Or Entilleen
",ixprr ;ar C'1011rcrs 9216 9h Fidd o(rirc
Rutrlgh 0wo R(.tticannl Orrtvr
MIC t ",y
t.M1.0 Hire,
Division of Water Quality % Non - Discharge Branch
Non.DisdtiArge Branch. 1621 Mlall $0PAcn Certilsr A41AIgh NC 27668»1621 Telephone [phone] FAX M-4-69611
An Equal Qppartun",y ,r.11irr )4 igca Ablimn Employer -
SM recyrladlt 0% pool consumer pApvr

- - � _ ; N�!
'_ vo
SEE DETAIL ABOVE
AT EACH END OF 2 %12 IEVEL UP
ON E C-C 2%12's AT III TO
E A T
EMOI NGGRAOE
OR AS REQUIRED TO
PREVENT PIPED --ER RUNOFF
FROM CIRCUMVENTING THE LEVEL LIP.
(YWCA-)
10' WIDE PRRN AI
GENERAL NOTES - STORM DRAINAGE
1. All storm droino e
nstruction sM1 II b
O e n Iolween
9 ce w th the City f Ral i h
Standard
y eg
S ecifications and De-if
p
2. The lItmg ctDI shop
Ne location of all existln
verify utilities or to be in onstruction. The to
g op�i g ninq c ration
of existing utilities shown on the plans is based on the best ilbble information, but can be cansitleretl
only as pproximate.
3. All storm draino9e pipe shall have a minlmum v of 1 foot to the pipe crown in non - traffic are .
4. Storm sewer shall be reinf rcetl concrete pipe (RCP) conforming to ASTM 176, Table III or ioble IV.as
Joins shall :III "' with a plostic cement putty meetlnq fetlerel speciTicotions SS- S- 00210, suM as
Rom -HIR or butyl rubber sealant.
5. Storm se er pipe ends shop be furnishetl with reinforced concete pipe A- Intl section unless
ofhwwise specified on plans,
8. Eoch drainage structure shall have a shaped invert strutted from concrete, and a bench ith a
m 5:1 slope. TnI bench shall begin at a height of one -half the pipe diameter for 12 10 24 -incF
pipe, one -third the pipe diameter for 50 - 49 inch pipe, and ane- fourth the diameter for p!pe greater than
a8 inches.
T Energy dissipaters shall be installed at all storm se r di h.,,. points. A fabric or washed stone
barrier shop be instated between the dTRIPgflOn pad Ind 1 LMV ground. See storm drainage outlet
protection schetlule.
4-1 i i ! YDF4EW,
2-
cnnpE�aHDIED -U-
ADS
AAARAVMER M.. AN-AA DI END TRE-T
ELEVATION VIEW OF STORMWATER LEVEL LIP DEVICE AT BOARDWALK
NO SCALE
TOP D' AMIL 11
'RAE ADDEDOR vRNOVOao Flu ILDRE.
xa
4. 2X12
2' 12'
ioc of 1-1 uP ELEV AT EACH END OF LEVEL UP MIN,
LENGTH.
EXTEND IN & 2 %4 AL 90" TO BOARDWALK
INTO EXISTING GRADE OR FILL SLOPE AS REQUIRED SA AS TO PREVENT RUNOFF FROM
CIRCUMVENTING FLOW OVER THE LEVEL LIP.
Ito N R�
PERSPECTIVE MEW OF LEVEL LENO TREATEMENT g0
NO SCALE
4)
xT -x -x
s
500 Ri i5s } Dx_
E
411 MN., LiVEL, Lip
STORM DRAINAGE CHART
$
PIPE DR.-
DIBeHA86E
Ftcwms Fuu
PRE DINE.
PIPE LRIGTN
-
1,P %DR
FN
To
R Ix
I-
A (A9)
Do
UFS)
(APnvi, 010
(cvs)
D
(IN)
L
(IT)
WR INV,
E45vnnoN
Lm , DR.
Etc7nnm:
S
% )
YII
ES
YI 1/314.00
0.30
1.1
19
IS "ALP
20
111 50
31p.N
1.50
202
FA
405
2021518.50
5.50
0.45
3Is
2.8
101.9
13.3
10•RCP
IS'ACP
26
Sob.
304.80
}03.)0
N3.70
6.11
AD
AD
196
V17
-DID,
OPUN,22
L06ISp
O,BC
1.1
4.9
6.B
].5
i3.1
15'ALP
IS
}0
M
91
505,50
31.90
203.10
299.00
.11
4.N
S
YII
CBB
o
469
OR
So
0111301..
1881501.94
1.15
2.15
1.1
13.2
15.2
!3.1
-RCP
IB "PCP
IB' RCP
62
115
298.50
294.40
191.10
291.40
2.10
III
C09
"BID
0091296.22
270
16.6
35.4
PCIT
102
29 R
288.50
145
(BIJ
3I4
3K
All
18131292.92
CB141Z92,92
DIS
D65
10
4.0
7.2
7.2
15 RCP
15- POP
32
32
267.90
287.50
181.50
286.40
I15
125
AAt
10140
S114A129sis
0.65
4.0
7.4
IS POP
50
286.10
28h.20
152
CDR)
JA10
JBIO
All
181481293.11
JAIOIN3.06
0.15
5.10
4.6
31.3
8.4
54.1
I5, RLP
ISNOR
41
72
01
284.45
265.30
283.95
1,61
0,69
J:II
312
CB42
DI. PSI
A11129167
JAIL291.
8.10
5.40
313
33.1
Ms
SB.O
3v K
SP III
54
59
283190
219.19
18.5.50
278.61
114
1..
CBI4
1015
In
CD16
OBARR96.22
CBISI2o3. Do
0.25
0.45
I.5
2.8
7.3
10.2
I5" RCP
15'ACP
31
12
29140
29840
ED' N
STAG
1.29
1.50
CBI6
LBI1
CB I1
GBIB
CBIhIS0120
CBI) /100.90
0.55
010
3.4
4.5
8.4
6.3
15" RCP
IF RCP
fi5
53
291.40
296"0
NQJO
295,60
1169
0.94
.11
c119
L'A
[139
LB181301.65
00191296.22
0.95
0.25
5.8
IS
6.0
7.3
I5 "RIP
ii" K?
72
51
19540
291.40
mho
291..
1.11
129
.20
0821
CD21
2010
18201293.17
18111293.17
1.30
1.65
AID
10,1
I,
11.5
IB "RGP
I1 -REP
8
50
E00.90
280.60
106.
DRAW
115
420
1812
AA5
CB12
AD56
06221292.22
a 5131410
0.50
I
El
DI
73
I.5
15 SOP
e'HOPE
31
42
187.60
III.
20]10
1"..
129
ID9
8056
A.
YII
.56
AD56I514.20
AN7I2911D
0.02
O.o3
0.1
0,2
1.2
A
0' HD?E
8'HGPE
40
30
311.30
291.60
3109D
N oo
: 400
2.23
A.
8059
AD59
CBtI
80501293.60
4059129360
0.05
O.C6
0.3
0,4
1.3
19
8 "HDPE
A'HGPE
28
8
290,80
NAAD
290.50
ED Do
1.01
250
AD.
AD6I
.61
CB22
A0601NI.ID
AN11292.8I
SA
DV2
Al
0.1
I2
1,5
B•loll
FN"'
40
11
280,00
288.30
29AD
288.00
1.00
1.15
.66
GOD
1019
CD.
ADD 1295..
C8231J.:50
0.02
A.
0.1
15
1,4
6.4
O'HDPE
15- RCP
IS
51
292,.
5580
51.00
295.40
1.33
AND
CB24
Am
JB25A
485
[82413..50
JBnks.95
D65
0.95
ED
5.8
11.5
616
IS'GOP
6S No
I!]
114
5510
D9oAo
291.50
189.20
1.16
IA5
An
CB26
I
CB 27
'N IN5.68
00261294.25
0.15
1.35
I.5
8.3
ED
5.8
IS" RCP
IB" RCP
A
17
191.20
188.80
T.
28650
O.hS
0,61
CB27
,.A
.28
CB29 ,_
181]1292.91
1828/241.}6
I.Do
1.10
Al
Ip 4.
8.9
10.5
IS POP
I6 "flLP
42
100
As SO
PB]]0
DID .
20610
'. DII
1.00
M0829
FE81�A"
CB RIA"0
2.30
181'
21.0
24'ACP
162
286,00
27950
4,01
.
JB31
Coss
CB32
CP30152)7
JB311N345
0.95
1.10
5A
68
16
813
18 'RCP
IB•RCP
71
65
181.30
286.10
28690
SIAN
DID
0.62
An
ANA
CB33
.5.
F8Sj1 =,'
CBS!
101
2031, Sm
[0351287.25
1.40
La
0.10
9 ,A
E6 ".
lA
12 3
18.6
915
I8'RCP
IB "RCP
4. RIF
22
128
43
286.10
288.
18150
DR. D
2Bq Op
261.60
1.36
3.13
2.09
Go.
1035
1635
AESJ6D
[:34/18630
18111!85.
185
0.95
5 2
6 &;'
1.2
h1
VRCP
IS'ACP
40
65
281.40
EBO,AO
28090
180.
L.
0.9E
Ow
022,
tI IVNQ90
030
IB
53
5 "RCP
14
SIGN
D4060
DID
Y!S
0140
CB27
c o
YIb9/295N
YILpl193.
025
025
IS
15
98
].i
5- REP
IS'RCP
62
64
289.10
290,00
P08 fi0
28910
2.51
I.W
Y,l
DIP
C0so
2031
YI4IRIso
042129310
0,35
0.15
IS
09
49
61
IS "AG
15, POP
69
19
280..
189.00
187.
288}0
0.58
0.5
AGEE
AD54
ADE4
CB34
8003/!85,.
AD64128EN
0,05
0.10
os
D6
1.2
L4
A'HCPE
B "HOPE
J5
II
283.00
Su so
DUAs,
20245
�' IDo
1so
ADS 1
A.,
8060
41
AN70A.10
4068/295.00
0,05
o'lo
0.1
0,6
L3
2.0
8 " HOPE
WNDPE
28
15
190.90
SIMS
so ..
288,10
too,
2.77
CA43
CB44
C on(A 70
0.20
1.2
12.1
16" ACP
12D
305.70
2.. 50
350
CB44
CR45
DBLS
0046
CB4413%Eo
(345/30035
0.45
DAB
2.6
4.0
122
136
15 "RCP
A.oc
Ho
25
299.10
295.20
29540
29410
3.55
4.40
1:46
0047
00461299,12
0.]0
4.1
E9
11, NOP
153
295.90
INS..
,.11
EPA
1048
C.
0847/5162
/848/295 91
1.15
7.7
110
Is
13.1
IB"ACP
t4'RLP
Ill
N2.1 0
190.20
290 10
268.80
IN
1.04
ALI
CA49
CB50
1051
.1
OND1P94.64
G
s.0
3.10
IA
la0
190
35.8
2i.5
PA'RCP
24 'RCP
8
6
115
EAO. 6)
288.5
288 4o
286..
2,50
.0
CA51
1052
-29446
LB51I29E.J3
3.10
111
35.1
24" RCP
183
286,30
281III
2.40
1:52
1853
4858
k'S$SL '.
ORV787,05
mRs'06, 68
ADD
4.15
P49 ,
DOS'^
35.1
31.8
3P ACP CL Itl
10 "RCP CL IV
46
59
P81.50
281.10
PBI PO
PBO60
0.65
4062
1:52
4062IP8650
0.05
.5
I.
6'HGPE
2A
285.60
D,.
D .11
4 -mP. aF C CLA URB
FY4R CATIS%@ASiNS__
- - � _ ; N�!
'_ vo
SEE DETAIL ABOVE
AT EACH END OF 2 %12 IEVEL UP
ON E C-C 2%12's AT III TO
E A T
EMOI NGGRAOE
OR AS REQUIRED TO
PREVENT PIPED --ER RUNOFF
FROM CIRCUMVENTING THE LEVEL LIP.
(YWCA-)
10' WIDE PRRN AI
GENERAL NOTES - STORM DRAINAGE
1. All storm droino e
nstruction sM1 II b
O e n Iolween
9 ce w th the City f Ral i h
Standard
y eg
S ecifications and De-if
p
2. The lItmg ctDI shop
Ne location of all existln
verify utilities or to be in onstruction. The to
g op�i g ninq c ration
of existing utilities shown on the plans is based on the best ilbble information, but can be cansitleretl
only as pproximate.
3. All storm draino9e pipe shall have a minlmum v of 1 foot to the pipe crown in non - traffic are .
4. Storm sewer shall be reinf rcetl concrete pipe (RCP) conforming to ASTM 176, Table III or ioble IV.as
Joins shall :III "' with a plostic cement putty meetlnq fetlerel speciTicotions SS- S- 00210, suM as
Rom -HIR or butyl rubber sealant.
5. Storm se er pipe ends shop be furnishetl with reinforced concete pipe A- Intl section unless
ofhwwise specified on plans,
8. Eoch drainage structure shall have a shaped invert strutted from concrete, and a bench ith a
m 5:1 slope. TnI bench shall begin at a height of one -half the pipe diameter for 12 10 24 -incF
pipe, one -third the pipe diameter for 50 - 49 inch pipe, and ane- fourth the diameter for p!pe greater than
a8 inches.
T Energy dissipaters shall be installed at all storm se r di h.,,. points. A fabric or washed stone
barrier shop be instated between the dTRIPgflOn pad Ind 1 LMV ground. See storm drainage outlet
protection schetlule.
4-1 i i ! YDF4EW,
2-
cnnpE�aHDIED -U-
ADS
AAARAVMER M.. AN-AA DI END TRE-T
ELEVATION VIEW OF STORMWATER LEVEL LIP DEVICE AT BOARDWALK
NO SCALE
TOP D' AMIL 11
'RAE ADDEDOR vRNOVOao Flu ILDRE.
xa
4. 2X12
2' 12'
ioc of 1-1 uP ELEV AT EACH END OF LEVEL UP MIN,
LENGTH.
EXTEND IN & 2 %4 AL 90" TO BOARDWALK
INTO EXISTING GRADE OR FILL SLOPE AS REQUIRED SA AS TO PREVENT RUNOFF FROM
CIRCUMVENTING FLOW OVER THE LEVEL LIP.
Ito N R�
PERSPECTIVE MEW OF LEVEL LENO TREATEMENT g0
NO SCALE
4)
xT -x -x
s
500 Ri i5s } Dx_
E
411 MN., LiVEL, Lip
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$
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-
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RALEIGH PSEE DES - 90
Engineering and surveying, Inc. RALEIGH, NORTH CAROLINA
111 MlcKeneh 0- Cmv NC 27611 (919) 468 -5340
FFE=295,0
MINIMU
0 WDE DOAROWALK MG)
END OF 2112 IEVET. IIP
FF ®.67
Ifl
VNI
U
rut'• !I �
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FFER
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111 MlcKeneh 0- Cmv NC 27611 (919) 468 -5340
FFE=295,0
MINIMU
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END OF 2112 IEVET. IIP
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NC CLEARING HOUSE LETTER OF FONSI

+ Jta 1 25 00 09:47a
NCSU /ENVR H &S CENTER
TEL:[phone]? _
•tea...••
North Caroiin
Department of Admi i
James B. Hunt, Jr., Governor
July 21, 2000
Mr. Duane Knudson �
N.C. State University
Environmental Health & Safety Center
CB #8007
Raleigh, NC 27695 -8007
Dear Mr. Knudson: i
Re: SCH File # 00- E- 6030 -0676; Environmental Assessmer
Proposed Extension of Capability Drive South, West of
The above referenced environmental impact information has
Clearinghouse under the provisions of the North Carolina Er
p.2
Jul 24'00 1308 No. 1C4 P.02
Katie G. Dorsett, Secre a,y
; of No Significant Impacl
Main Campus
reviewed through the State
mental Policy Act.
Attached to this letter are comments made by agencies in the eo a of this review. Because of the
nature of the comments, it has been determined that no further S to Clearinghouse review action c a
your part is needed for compliance with the North Carolina Envi onmental Policy Act. The attach, d
comments should be taken into consideration in project develop lent.
Best regards.
Since;;,,
Ms. drys
Attachments
cc: Region J
State Construction Office
Policy Pict Coordinator
116 West Jones Street Raleigh, North Carolina 27603 -8 3 Telephone [phone]
AA $goal Oppo —hy ! Afritmeaw Anwo 1oyw

EBX MITIGATION RESERVATION LETTER

Forrest Creek Riparian Buffer Mitigation Bank
Neuse Buffer Umbrella Bank
Upper Neuse Buffer- Nutrient Reduction Bank
Statement of Availability January 16, 2014
NC Division of Water Quality
Ms. Katie Merritt
401 Oversight /Express Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699 -1650
U.S. Army Corps of Engineers
Mr. Andrew Williams
Regulatory Program Manager
Raleigh Regulatory Field Office
3331 Heritage Trade Center, Suite 105
Wake Forest, NC 27587
Re Project: North Shore Condominiums — Phase I (Centennial Campus, NC State University)
This document confirms that Board of Trustees of the Endowment Fund of NC State University
(Applicant) for the North Shore Condominiums -Phase 1 has expressed an interest to utilize
4,119 Square Feet of Riparian Buffer Mitigation Credits from either of the EBX Neuse Riparian
Buffer Umbrella Mitigation Bank /Rudolph Site, Forrest Creek Riparian Buffer Mitigation Bank,
and /or the Upper Neuse Buffer Bank located in Neuse -Cedar Grove Site, all located in HUC
03020201. As the Bank Sponsor for all sites, EBX attests to the fact that mitigation is available
for transfer upon permit issuance at this time.
Banker will notify applicant if the 4,119 Sq. Ft. of Buffer Mitigation become considered "At
Risk" of not being available prior to permit issuance. Credits are not considered secured until
payment in full is received from the applicant resulting in the issuance of a Bill of Sale and
Affidavit of Sale by the bank acknowledging that the applicant has fully secured credits from
the bank and the Banker has accepted full responsibility for the mitigation obligation requiring
the credits /units.
The Banker will issue the Affidavit of Sale within ten (10) days of receipt of the balance of the
Purchase Price. Banker shall provide to Applicant with a copy of the Affidavit of Sale and a
documented copy of the debit of credits from the Bank Official Credit Ledger(s) showing the
permit number and the resource type secured by the applicant. A copy of the Affidavit of Sale,
with an updated Official Credit Ledger will also be sent to regulatory agencies showing the
proper documentation.
If any questions need to be answered, please contact me at 239 - 872 -1678
Best Regards
0 /.c
�
j
Matthew R. Fisher
EBX -EM, LLC 909 Capability Drive Suite 3100. Raleigh, NC 27606

NCSU STORMWATER PLAN APPROVAL

North Carolina State University is a land- Office of Finance and Business
grant university and a constituent institution Environmental Health and
of The University of North Carolina Public Safety Division
An Equal Opportunity'Affirmative Action Employer
http:: www,nosu.edu/ehs/
Date: February 17, 2014
To: Michael Harwood
North Carolina State University
Campus Box 7408
Raleigh, North Carolina 27695 -7408
t . ,
From: Jeanette Powell, Environmental Affairs Coordinator
RE: Project Name North Shore Condominiums — Phase�I
Stormwater Plan Approval No. SW- 2014 -0102
Approval Expiration Date: February 17, 2015
Environmental Health & Safety Center
Campus Box 8007
Raleigh, North Carolina 27695 -8007
Assoc. Vice Chancellor 919.515.4238
Environmental Affairs
919.515.6859
Industrial Hygiene
919.515.6860
Health and Safety
919.515.6858
Radiation Safety
919.515.2894
Business Continuity
919.515.5201
(Fax)
919.515.6307
The submitted stormwater management plans for the subject project, which are labeled Stormwater
Management Plans for North Shore Condominiums — Phase 1, signed and sealed by Bradley D. Hart, P.E.,
on February 5, 2014, have been reviewed and conditionally approved in accordance with North Carolina
State University's Stormwater Management Program, NPDES Stormwater Permit NCS000376,
Stormwater Requirements for New Development and Re- Development and associated stormwater
program and policy requirements in force by the University at the time of approval.
This approved project consists of two (2) constructed stormwater wetlands. BMP #1 has a 1.60 -acre
drainage area at 45.6% impervious. BMP 42 drainage area is 4.72 -acres and is designed to treat runoff
from Phase I and Phase II new construction at 63.1 % impervious cover. Additional drainage is treated
through a 1.26 -acre bypass area that must maintain sheet flow on the south side of the project. Additional
drainage is treated in the existing North Creek Pond BMP on the east side of the site and consists of new
construction in a 4.79 -acre, 73.9% impervious drainage area.
Please note that this conditional approval does not supersede any city, state or federal requirements that
may apply to this project. Conditional plan approval is contingent upon resolving the following
conditions prior to beginning construction:
1. Flood Permit: Due to proximity of the floodway to the project, a Flood Permit is required from the
City of Raleigh.
2. Payment of Nutrient Offset Fee: An offset payment fee has been assessed for nutrient management
associated with this project. The total fee for this project is $31,393.03. The attached original invoice
should be signed and sent to the Facilities Budget Office immediately for processing. A copy of the
invoice has been sent to the Budget Office for their records.
3. Erosion and Sediment Control Permit: Forward a copy of the Erosion and Sediment Control
permit/approval and one set of approved plans to Jeanette Powell at the Environmental Health &
Safety Center. Environmental Affairs will conduct periodic site evaluations for compliance with
University requirements. If you have any questions regarding the University's inspections, please
contact NCSU Environmental Affairs at (919) 515 -6861.
A copy of this approval memo and the approved stormwater management plans must be kept on
site at all times. Stormwater BMPs must be installed per the approved plans. Please note that the
project is not complete and compliance liability remains until BMP As- Built's and Engineer
Certifications have been accepted by the University, final inspection is approved, grading permits
have been closed, and a Certificate of Completion has been issued.
w /attach
Cc: SWM File
Hunter C. Freeman, P.E, Withers & Ravenel, Inc.

DIFFUSE FLOW INFORMATION

"*
"k,
os 1 , '
a L" -3�
1�Yk� FEMA 100 YEAR FLOOD
1 III • cp3 _ 3,2 !f i r Y BOUNDARY LINE
- 7 I
EXISTING 30" RCP "�3 �%
a _ � � � EXISTING �
O 7 (�Q__NOFPk, (�� '� NORTH CREEK POND /
i G ka � �D p. BMP /
f�E
�,
`_ ❑. !� - iLx" x— x- -x —x —x x —x Vii. IiIM
C � 1 4 I
�A.�
v", ( —.9� I EIA. \-{.t !`' 0 EXIST. TREE
.,�F '3�i ©! .`50'Il'�' CONSERVATION
%-X�x -� -_' _ 'J If �� _._ -t
41 -- -{� ,, 1 ARA AREA
{ U " c � j, 3 PEE I��
Z,
6 N 1
7
I P
d
A / - ' y !I I.r . __ -'„�__ - -_ �, I.- 'f;'•' -_ —r#� 4 4 I ,.,4,'
a D.A. =4-72 C..
,
IMP.''D.A -2.98_ AC. ,rI 1 —„ X_ NARC':
g/ _
'�_ / i; „i W .:.sue _ - _ 1::1 -� j...� - C.� TREE ONSERA ,
1'!! 7 ,''. EXIST
G
(63.1 IMPERVIOUS) i lill4 �s« „ L EX ,
t, s
x�
i
NOTE: +' �I{ ! .t --- tI { .' _ )l lI
AS -, ', BMP.#.2 DRAINAGE AREA DELINEATION _; h „. �,trI1r v Rt '' re II
i a ��
-. AS SHOWN`PR6VIDES - 'POR., APPROXIMATELY �rht 11 I`� r /
« ,•3 i 2,65 AC.. -OF FUTURE PkASE. 11 DEVELOPMENT '.'�.... ;3'” .'_,� ;,.1 I ',,I t I
, .. ns L, :I { tom+ A,._�.. h .-_ I f N
TRIBUTARY TO TH45 BA$IN.� ... y _ 1i1 h „T "-P 4- his. i;. TI �, L. =° _,_ _/ I I
.0
� In4
`� \ \ � ,.f ,— zss ---, _ .a 1 � - F ' • t', � r I i ^' ( I ,ni I I I I • �+ \
1
1 ,
1 5. I
A,-
FEMA lob-YEAR FLOOD
ass.
-� ss
BOUNDARY LINE
4 \ /
zes
kiP2
_TfAND,
m i YO
°
aed
NOTE:
SHEET FLOW RUNOFF SHALL BE MAINTAiNED'ACROSS SOUTHERN EDGE f't� 2a �FESS /Oti °e9
OF THE S
es
EGG OF PA4EMENT AREIi `DE51 TO PROMOTE THIS CONDITION % // SEAL
NO GUR&'1S- PROPOSED OR-=A L4WE �'AtONG FMI`s AREA-_ _�-7REP 23484
\ - /
,ghYST. - BMP RISER -$
SS. —SS ..5-
1 . - «TREE - _BNitiEC. PO'E -(<t
o /
- __ -- -�� -_
,. "yea �
FEMA FLOOOWAY BOUNDARY ` -. \ I N �' / - - -
�� — EXIST. AREA"
FEMA 100 YEAR
C. TREE i' / BOUNDARY UNE
EONSERNATION �
—
\,.,, OONSE �ApO /i \ — — _ '_ T _ GRAPHIC SCALE
\ \ / LAKE RALEIGH \ — tMP ,,D A a. AC
'tMP�VIOI) l LAKE RALEIGH
I inch - 50 ft.
1 — Revision Date B Designer Sale North Shore Condominiums
1 Added � t. TCA areas. 111/15/131 BOB W &R 7" 50 Sheet NO.
2 Rev. BMP 2 to Wetlm,d 2/05/14 BDH Drawn By Date Stormwater Management Plan WITHERS �[' RAVENEL C1.02
6OH GAS 09 06 13 Phase 1
cneal«day lO6Na. ENGINEERS I PLANNERS 1 SURVEYORS .� -o�=
BDH 02130002.0 Raleigh Wake County North Carolina 115M.rxe nDrive Ca NOUh CrMHra2>511 tel: [phone] fax 919461d008 w w.widrersravenel.mm
\
„p
e'
-:,z- -
Impervious Surface Summary.
_
UTILITY & STORM LEGEND
_.. ..._
_ North Shore Condominiums -Phase 1
} EIRE HYDRANT
H WATER VALVE
Existing Impervious Existing Impervous Net Remaining
Proposed New
Total Phase 1
0 WATER METER
Impervious Area Description
Surface Coerage
To Be Removed
Existing Impervious
Surface
Impervious Surface
© WATER BET
O SEWER CHECK VALVE
(SF)
(SE)
Imper—s(SF)
(SF)
(SF)
O
I
P
• CLEAN OUT
Buildings
Streets / Alleys /Parkn
21,767
74,691
0
2491_
21,767
72,200
66,098
67,726
87,865
___ 139926
-
E
W WATER UUe
Sidewalks / Stoops / Patios
5,972
_
878
5,094
23,663
28,757
)
SS 1- ITARYSEWER
Gravel Paling
10765
10765_
0
0
0
_.....
....
Pool Patio
-
0
-
D
0
5,906
_
5,906
...•
I
rl -
.-
- - - - - - - EASEMENT
EASEMENT
_
Proposed Surplus Allacatlon
- - - - 0
0
0
5,000
5,000
_
!
Total
113,195
14,134
99,061
168,3931
267,4541
6.14'Acres
Total Phase ACT go
9.08. -Acres
Total Phase I ImpeMous
6.14'•Acres
I
Phase I Percent Impervious
67.6 %
alb
„
BO 69
ta m
h�9jr,
"s\�
An
,i
s
U
A
oe
xy
All
' 65 o
s7
of
"*
"k,
os 1 , '
a L" -3�
1�Yk� FEMA 100 YEAR FLOOD
1 III • cp3 _ 3,2 !f i r Y BOUNDARY LINE
- 7 I
EXISTING 30" RCP "�3 �%
a _ � � � EXISTING �
O 7 (�Q__NOFPk, (�� '� NORTH CREEK POND /
i G ka � �D p. BMP /
f�E
�,
`_ ❑. !� - iLx" x— x- -x —x —x x —x Vii. IiIM
C � 1 4 I
�A.�
v", ( —.9� I EIA. \-{.t !`' 0 EXIST. TREE
.,�F '3�i ©! .`50'Il'�' CONSERVATION
%-X�x -� -_' _ 'J If �� _._ -t
41 -- -{� ,, 1 ARA AREA
{ U " c � j, 3 PEE I��
Z,
6 N 1
7
I P
d
A / - ' y !I I.r . __ -'„�__ - -_ �, I.- 'f;'•' -_ —r#� 4 4 I ,.,4,'
a D.A. =4-72 C..
,
IMP.''D.A -2.98_ AC. ,rI 1 —„ X_ NARC':
g/ _
'�_ / i; „i W .:.sue _ - _ 1::1 -� j...� - C.� TREE ONSERA ,
1'!! 7 ,''. EXIST
G
(63.1 IMPERVIOUS) i lill4 �s« „ L EX ,
t, s
x�
i
NOTE: +' �I{ ! .t --- tI { .' _ )l lI
AS -, ', BMP.#.2 DRAINAGE AREA DELINEATION _; h „. �,trI1r v Rt '' re II
i a ��
-. AS SHOWN`PR6VIDES - 'POR., APPROXIMATELY �rht 11 I`� r /
« ,•3 i 2,65 AC.. -OF FUTURE PkASE. 11 DEVELOPMENT '.'�.... ;3'” .'_,� ;,.1 I ',,I t I
, .. ns L, :I { tom+ A,._�.. h .-_ I f N
TRIBUTARY TO TH45 BA$IN.� ... y _ 1i1 h „T "-P 4- his. i;. TI �, L. =° _,_ _/ I I
.0
� In4
`� \ \ � ,.f ,— zss ---, _ .a 1 � - F ' • t', � r I i ^' ( I ,ni I I I I • �+ \
1
1 ,
1 5. I
A,-
FEMA lob-YEAR FLOOD
ass.
-� ss
BOUNDARY LINE
4 \ /
zes
kiP2
_TfAND,
m i YO
°
aed
NOTE:
SHEET FLOW RUNOFF SHALL BE MAINTAiNED'ACROSS SOUTHERN EDGE f't� 2a �FESS /Oti °e9
OF THE S
es
EGG OF PA4EMENT AREIi `DE51 TO PROMOTE THIS CONDITION % // SEAL
NO GUR&'1S- PROPOSED OR-=A L4WE �'AtONG FMI`s AREA-_ _�-7REP 23484
\ - /
,ghYST. - BMP RISER -$
SS. —SS ..5-
1 . - «TREE - _BNitiEC. PO'E -(<t
o /
- __ -- -�� -_
,. "yea �
FEMA FLOOOWAY BOUNDARY ` -. \ I N �' / - - -
�� — EXIST. AREA"
FEMA 100 YEAR
C. TREE i' / BOUNDARY UNE
EONSERNATION �
—
\,.,, OONSE �ApO /i \ — — _ '_ T _ GRAPHIC SCALE
\ \ / LAKE RALEIGH \ — tMP ,,D A a. AC
'tMP�VIOI) l LAKE RALEIGH
I inch - 50 ft.
1 — Revision Date B Designer Sale North Shore Condominiums
1 Added � t. TCA areas. 111/15/131 BOB W &R 7" 50 Sheet NO.
2 Rev. BMP 2 to Wetlm,d 2/05/14 BDH Drawn By Date Stormwater Management Plan WITHERS �[' RAVENEL C1.02
6OH GAS 09 06 13 Phase 1
cneal«day lO6Na. ENGINEERS I PLANNERS 1 SURVEYORS .� -o�=
BDH 02130002.0 Raleigh Wake County North Carolina 115M.rxe nDrive Ca NOUh CrMHra2>511 tel: [phone] fax 919461d008 w w.widrersravenel.mm

EL. 296.67'
CONCRETE SLAB TOP
EL. 295.50'
VOID
295.50' SPACE 8"
PtAK AI IENUAIIUN WEIR= 295.UU L�
(1' -0" WIDE, ONE SIDE ONLY)
PERMANENT POOL = 294.00' 4 "X4" TEE (CAP)
1
i
7.0' `
1—
NTS
4'x4' RISER BOX ANTI - FLOTATION BLOCK
NTS
SLOPE 2H:1V MIN.
298.00'
FORESAY BERM
5'
SLOPE 3H:1V MIN.
24' RCP INV. 293.35
RIPRAP DISSIPATOR
SEE OT. SHT. C3.03
& BMP #1 SITE PLAN
c BOTTOM OF FORE.) \ EL -291.5
12" CLAY LINER
SHALLOW SHALLOW
LAND WATER
W-294.0 2915 -294.0
RISER
OUTLET PIPE
d,_D„
EAST WALL
WEST WALL SOUTH WALL
RISER WALL ELEVATIONS
NTS
#4 REBAR, 12" O.C.
EACH WAY 1/2" PREFORMED JOINT
FILLER, 12" WIDE
9.0, O
9.0' 8"
ELEVATION SECTION
ANTI -FLOAT BLOCK NOTE:
2000 PSF MIN. BEARING
CAPACITY BENEATH
COLLAR
295.0'
1" VOLUME WATER QUALITY POOL
294.0'
PERMANENT POOL
_4" TOPSOIL (TYP.)
PLACED
INVERT 291 5'
291.5'
TYPICAL ANTI -SEEP COLLAR
—4' X 4' I.D. RISER
100 -YR WSE = 295.79'
10 -YR WSE = 295.66' .
2 -YR WSE = 295.36'_.
DEEP POOL
292.5 -291.5
STORMWATER WETLAND SECTION
NTS
Y
1"=30'
SHALLOW WATER (3 -6" BELOW NORMAL POOL) = 1,624 S.F. 50 HERB. PLANTS 1200 S.F. = 406 PLANTS
PLANT TYPE
I QTY
I KEY
BOTANICAL NAME
I COMMON NAME
I ROOT
JOINT SEALED WITH A -LOCK NEOPRENE
I HEIGHT
I NOTES
HERBACEOUS
47
GASKET CAST IN MANHOLE WALL
Acorus wlamus'VaH,,pta
ar V ,,gated Sweet Flag
4" DIP WITH 1" CAP
1 4' Pot
1
124" O.C.
AND ORIFICE OUTLET
PeQandra -p —a
Pontedana mrdata
EL. 290.50'
C___ H
GONT.
4' Pot
4" Not
GROUT EACH SIDE
47
Sagiu,,ia latif th,
Broadleaf Arrowhead
CONT.
NORTH WALL
4" GATE VALVE
-O.C.
-
24"0 C
85
Saur H cernuus
Lizard'stail
18" CLASS III RCP
4" Pot
24" O.C.
4 "X4" TEE
85
Schoenopl,,ms tabernaemonfanl
SA tern Bulrush
CONT.
GROUT 6' MIN.
EL. 2
24" O.C,
WDOWN OUTLET - 291.50'
INV - 291.50'
Y
KEY
— III —I —I y
PAVED INVERT
ROOT
1 WEIR
EL. 295.00'
HEIGHT
NOTES
27
Asclepius incarna[a
Swamp Milkweed
CONT.
4" Pot
WATER
24" O.C.
HERBACEOUS
43
QUALITY
Tussock Sedge
CONU
4" Pat
NOTE: PLACE STEM
ORIFICE
EL. 294.00'
4" DIP
43
SUPPORTS AT 3' FROM
toe -pye weed
W /1' CAP
4" Pot
7' -0"
BASE
27
Fiblscus .—h-t.,
Rose Mallow
EMERGENCY
4" Pot
_O.C.___
24" O.0
DRAWDOWN
EL. 291.50'
-� 4" DIP
RISER &
DRAWDOWN DEVICE DETAIL
CONT.
4" Pot
1
i
7.0' `
1—
NTS
4'x4' RISER BOX ANTI - FLOTATION BLOCK
NTS
SLOPE 2H:1V MIN.
298.00'
FORESAY BERM
5'
SLOPE 3H:1V MIN.
24' RCP INV. 293.35
RIPRAP DISSIPATOR
SEE OT. SHT. C3.03
& BMP #1 SITE PLAN
c BOTTOM OF FORE.) \ EL -291.5
12" CLAY LINER
SHALLOW SHALLOW
LAND WATER
W-294.0 2915 -294.0
RISER
OUTLET PIPE
d,_D„
EAST WALL
WEST WALL SOUTH WALL
RISER WALL ELEVATIONS
NTS
#4 REBAR, 12" O.C.
EACH WAY 1/2" PREFORMED JOINT
FILLER, 12" WIDE
9.0, O
9.0' 8"
ELEVATION SECTION
ANTI -FLOAT BLOCK NOTE:
2000 PSF MIN. BEARING
CAPACITY BENEATH
COLLAR
295.0'
1" VOLUME WATER QUALITY POOL
294.0'
PERMANENT POOL
_4" TOPSOIL (TYP.)
PLACED
INVERT 291 5'
291.5'
TYPICAL ANTI -SEEP COLLAR
—4' X 4' I.D. RISER
100 -YR WSE = 295.79'
10 -YR WSE = 295.66' .
2 -YR WSE = 295.36'_.
DEEP POOL
292.5 -291.5
STORMWATER WETLAND SECTION
NTS
Y
1"=30'
SHALLOW WATER (3 -6" BELOW NORMAL POOL) = 1,624 S.F. 50 HERB. PLANTS 1200 S.F. = 406 PLANTS
PLANT TYPE
I QTY
I KEY
BOTANICAL NAME
I COMMON NAME
I ROOT
I CALIPER
I HEIGHT
I NOTES
HERBACEOUS
47
Acorus wlamus'VaH,,pta
ar V ,,gated Sweet Flag
I CDNT-
1 4' Pot
1
124" O.C.
47
122
PeQandra -p —a
Pontedana mrdata
Arrow arum
P ckerelweed
C___ H
GONT.
4' Pot
4" Not
24"0 C
24 "
47
Sagiu,,ia latif th,
Broadleaf Arrowhead
CONT.
4" Pot
_
-O.C.
-
24"0 C
85
Saur H cernuus
Lizard'stail
CONT.
4" Pot
24" O.C.
85
Schoenopl,,ms tabernaemonfanl
SA tern Bulrush
CONT.
1 4" Pot
_
24" O.C,
SHALLOW LAND (0 -3" BELOW NORMAL POOL) — 1,613 S.F. SEE NOTE FOR PLANT CALCULATIONS
PLANT TYPE
Y
KEY
BOTANICAL NAME
COMMON NAME
ROOT
CALIPER
HEIGHT
NOTES
27
Asclepius incarna[a
Swamp Milkweed
CONT.
4" Pot
24" O.C.
HERBACEOUS
43
Carex gri'Y
Tussock Sedge
CONU
4" Pat
24" O.C.
43
Eupatorium purpureum
toe -pye weed
CONT.
4" Pot
24"
27
Fiblscus .—h-t.,
Rose Mallow
COM-
4" Pot
_O.C.___
24" O.0
_
43
_
Iris versicolor
Northern Blue Flag Iris
CONT.
4" Pot
24" O.C.
60
luncus effusus
Soft Rush
CONT.
4" Pot
24" O.C.
30
Lobelia cardlnA,
Cardinal flower
COOT.
4" Pot
24" O.G
SHRUBS
3
A,.— arbutifdm
Red ChoIVA, r y
PONT.
3 Gal.
5' O.C.
3
Cephalanthus occiderwhs
Buttonbush
CONT-
3 GA
S' O -G
_
2
Comus sericea'Isan[i'
Red Twig Dogwood
PONT.
3 Gal.
T O.C.
3
It,, v,r,,nica
Sweetspire
CONT.
3 Gal-
2
M"" Fe"_
Wax MyrP"
CONT.
3 Gal.
DRAINAGE AREA = 1.60 ACRES
PERCENT IMPERVIOUS AREA = 46
OP OF DAM 1" WO ORIFICE 0 294.00' (NORMAL POOL)
�e 1' WEIR 295.00'
RISER SPI LLWAY @ 295.50'
L- 298.00
TOP OF DAM = 298.00'
WETLAND 100 -YEA11 WSE = 295.79'
OUTFALL CULVERT INV. IN = 29150'
SLOPE 3H:1V MIN. OUTFALL CULVERT INV. OUT = 291.00'
_OATATION DEVICE
ANTI -SEEP COLLAR
18" RCP OUTLET PIPE
EARTH DAM
DISSIPATOR PAD
291 0' / SEE DR. $HT. C3.03
r & BMP #1 SITE PLAN
FOREBAY [18"-30" BELOW NORMAL POOL] (10 -15 %) +/- 392 SF
DEEP POOL [1B "30" BELOW NORMAL POOL] (10 -15 %) 4-411 SE
SHALLOW WATER [3 -6" BELOW NORMAL POOL] +1- 1,624 SF
SHALLOW LAND [0 -3" ABOVE NORMAL POOL] +/- 1,613 SF
NOTES:
TRANSITION FROM DEEP POOL TO SHALLOW WATER SHALL HAVE A
MAXIMUM SLOPE OF 1.5:1.
SURFACE AREA AT TEMP. WATER QUALITY = 4,041
SHALLOW LAND PLANTING TABULATIONS
1. HERBACEOUS PLANTS PROPOSED FOR 80% OF SHALLOW LAND AREA
(1,290 51.)
50 PLANTS 1200 S.F. - 323 PLANTS REQUIRED
2. SHRUBS PROPOSED FOR 20% OF SHALLOW LAND AREA (323 S.F.)
8 SHRUBS1200 S.F. - 13 SHRUBS REQUIRED
NQTES.
1) A CLAY LINER SHALL BE INSTALLED AT LEAST 12" THICK AND MEET THE FOLLOWING SPECIFICATIONS:
• UNIFIED SOIL CLASSIFICATION SYSTEM DESIGNATION OF CL CH, ML,SC
• MINIMUM OF 409 PASSING #200 SIEVE
• MNIMUM PLASTICITY INDEX OF 12
• MAXIMUM PERMEABILITY OF 0.01 IN /HR.
• A MINIMUM OF 2 TESTS OF EACH ABOVE PARAMETER SHALL BE COMPLETED BY THE CONTRACTOR ON
THE LINER MATERIAL AND PRESENTED TO THE ENGINEER FOR APPROVAL.
• COMPACTION TO A MINIMUM OF 939 PER ASTM D698, AND WITHIN 3%" OF THE OPTIMUM MOISTURE
CONTENT (1 COMPACTION DENSITY TEST PER 2500 SQ. FT.)
THE CLAY LINER SHALL BE PLACED UNDER THE BOTTOM OF THE LIMP AND UNDER THE SIDE SLOPES TO AN
ELEVATION OF 294.0 FE A MINIMUM OF 4 INCHES OF TOPSOIL SHALL BE THE FINISHED GRADE AS SHOWN ON THE
DRAWINGS AND /OR DETAILS. CARE SHALL BE TAKEN WHEN TRACKING IN THE TOPSOIL TO NOT PUNCTURE OR
DAMAGE THE CLAY. A CLAY /SOIL MIXTURE MAY BE USED IF THE ABOVE SPECIFICATIONS ARE SATISFIED AND WITH
WRITTEN APPROVAL BY THE ENGINEER.
2) CUT AND FILL SLOPE 2HAV OR GREATER SHALL BE STABILIZED WITH PERMANENT SLOPE RETENTION DEVICES
OR A SUITABLE COMBINATION OF PL4NTINGS AND RETENTION DEVICES. SLOPES GREATER THAN 3HHV SHALL NOT
BE STABILIZED WITH TURF GRASS BUT SHALL BE STABILIZED WITH VEGETATION THAT REQUIRES MINIMAL
MAINTENANCE: WEEPING LOVE GRASS, RED FESCUE, OR OTHER APPROVED VARIETY.
3) AT THE CONCLUSION OF CONSTRUCTION ALL BMPS INSTALLED ON -SITE SHALL BE CERTIFIED BY A DESIGN
PROFESSIONAL AND THE CITY OF RALEIGH ENGINEERING DEPARTMENT AND NCSU MUST RECEIVE ALL AS -BUILT
DRAWINGS PRIOR TO RECEIVING TO CERTIFICATE OF OCCUPANCY.
J SS N`/29.%
SEAL
23484
RBM]51QN Dace B DD­,­ 5gle
I rmwa North Shore Condominiums Per NCSU Stoter Review 10 11 13 BDH W &R ,^ = 3D' BM P # 1 Sheet NO.
2 Per NCSU Stormwater Rev'�aw 72/12/13 BDH Drawn By Dale � 1 � H E � � �' RAV E N E L
3 Per NCSU Stormwater Review 02/05/14 BOB PAP 09 06 13 Phase 1 STORMWATE R WETLAND DETAIL C3.04
ene�ked By m6 NO. ENGINEERS I PLANNERS I SURVEYORS e•... a. o-eaa�
HOF 0213oo02.o Raleigh Wake Count North Carolina „sMaeKenanDnve carv,Nerrncarollnasr,,, IOLOlt- 4693340 wwwwltner�ra�eeaLeom

EL. 286.91' _ -
1
CONCRETE STAB TOP EL. 285.75' EL. 285.75'
L 0 +91'
+sL
VOID a' L
RISER CREST = 285.75' SPACE
O ,
PEAK ATTENUATION WEIR = 285.00'-
.
(1' -0" WIDE, ONE SIDE ONLY) awxL §ro TION DETAI%THI9 SnEET)
)I -TIP B � "ALIGNMENT OF ST ,7ER- AtlETEAN
4 "X4" TEE (CAP) �e,x1 r - _
PERMANENT POOL 284.00
s ,zes
OUTLET
18" RCP
JOINT SEALED WITH A -LOCK NEOPRENE f 'µT ` z e 113- C 115
GASKET CAST IN MANHOLE WALL
4" DIP WITH 1.5" CAP EL. 281.50' :If '1E'i'
AND ORIFICE OUTLET EL. 280.50'
FEMA 100 -YEAR FLOOD ? 1 + l% N
GROUT EACH SIDE \
BOUNDARY LINE - "- r - \
NORTH WALL EAST WALL
PlREBAY - w
G_ r
�^ J
4" GATE VALVE 8 _
1" CLASS III RCP r - b F
rN
4 "X4" TEE
GROUT 6' MIN. EL. 285.75' EL. 285 75'
EMERGENCY DRAWDOWN OUTLET - 281.50' INV. 281.50'
- 1' WEIR
PAVED INVERT -_ �., z5
i
I-1 ;d. EL 285.00'
TOP OF DAA{ 287.0
1 0 _ a a WATER aa2
° e 4 e _- QUALITY
° ORIFICE -
EL. 284.00' _._._ s� -.l _- °✓
NOTE: PLACE STEM --- 4" DIP 5 - BMP RISER &
8w
r
BASE AT 3' FROM W/1.5" -. OUTLET PIPE
CAP
7 -0. EMERGENCY
DRAWDOWN 5
._ ,
EL. 281.50' 4" DIP
' S
N­ DISSIPAXI't
/ 5�
uss s RP�P, aeLINER C
/ (NCLUp[s EMENo nc RPIR' _.
RISER & DRAWDOWN DEVICE DETAIL WEST WALL SOUTH WALL / 2 �w� 9�/ yes PPE Nan \
esBPA,oR,N P,m ,R' v v
0 9 \ \
RISER WALL ELEVATIONS �otiFO / �� \ \\` \` aR.1 1EI
E
u
NTS � � \ / � JD, - � \\ \ muM Y
tJ -TAN Rb1M�ossvaTOR
#4 REBAR, 12" O.C.
5.0' EACH WAY 1/2" PREFORMED JOINT
FILLER, 12" WIDE
\ . BMP #2 SITE PLAN < '
4. �
0'
SHALLOW WATER (3 -6" BELOW NORMAL POOL) = 4,650 S.F. 50 HERB. PLANTS / 200 S.F. = 1,162 PLANTS
RISER PLANT TYPE COMMON NAME I ROOT I CALIPER I HEIGHT I NOTES
9.0, 134 Acorns calamus VzregaU' Vat egated Sweet Flag CONT. 4" Pot 24' O.C. FOREBAY [18 " -30" BELOW NORMAL POOL] 00 -35 %) +/- 967 SF
OUTLET PIPE • HERBACEOUS " -134 PeltandravngfiiNu Arrow arum CONE. 1 4" Pt 1 124" D.C.
s I 349 Pontedar a cordaU P k relweed _ CONT. 4" Pot 24' O.C. F
DEEP POOL [18 " -30" BELOW NORMAL POOL] (1415 %) +/ -1,389 SF
i 134 Sag uar a lat fora 6 dleaf A head CONT. 4" Pot 24' O.C.
l 205 SaLow, cernuus L d sUT COST. 4" Pot 24' O.C. SHALLOW WATER H -6" BELOW NORMAL POOL] +/ -4,650 SF
206 SchoenoplecNS tabernaemontani Soffst'em Bulrush CONT. 4" Pot 24" O.C.
7.0' 5.0' 4.0' SHALLOW LAND R -3" ABOVE NORMAL POOL] +/- 4,795 SF
9.0' SHALLOW LAND (0 -3" BELOW NORMAL POOL) > 4,795 S.F. SEE NOTE FOR PLANT CALCULATIONS
PLANT TYPE COMMON NAME ROOT CALIPER HEIGHT NOTES NOTES:
ELEVATION SECTION 90 Asclepius incarnata _ Swamp Milkweed CONE. 4" Pot 24" O.C.
HERBACEOUS 125 Carex stricto Tussock Sedge CONT. 4" Pot_ _24" O.C. TRANSITION FROM DEEP POOL TO SHALLOW WATER SHALL HAVE A
- - -- MAXIMUM SLOPE OF 1.5:1.
m
125 Eupawnum purpureu Joe -pye weed CONT. 4" Pot 24" O.C.
LL- ANTI -FLOAT BLOCK NOTE: 90 Hibiscus moscheutos Rose Mallow CONT, 4" Pat 24" O.C. _ SURFACE AREA AT TEMP. WATER QUALITY - 11,800
2000 PSF MIN. BEARING 170 Iris verskolor Northern Blue Flag Iris CONE. 4° Pot 24'0.C.
CAPACITY BENEATH 180 Juncus effusus _ Soft Rush CONE. 4" Pot 24" C.C. SHALLOW LAND PLANTING TABULATIONS
COLLAR 180 Lobelia cardinalis Cardinal Flower CONT. 4" Not 24" O.C. L. HERBACEOUS PLANTS PROPOSED FOR 80% OF SHALLOW LAND AREA
SHRUBS 9 Aronia ubotif ha Red_Chokeberry CONT. 3 Gal. 5' O.C. (3,836 S.F.)
9 Cephalanthus occidentalis 8,LNo bush CONT. 3 Gal, T O.C. 50 PLANTS 1200 S.F. = 959 PLANTS REQUIRED
6 Cornus sericea'Isanti _ Red Twig Dogwood CONT. 3 Gal. 5' O.C.
4'x4' RISER BOX ANTI - FLOTATION BLOCK TYPICAL ANTI -SEEP COLLAR 9 It- i'glnlca sweeieptre coNT. 3 cal. 5' o.c. 2. SHRUBS PROPOSED FOR 20% OF SHALLOW LAND AREA (323 S.F.)
NTS NTS 6 Myrica cerifera Wax Myrtle CONT. 3 Gal. 5' O.C. 8 SHRUBS 1200 S.F. - 38 SHRUBS REQUIRED
NOTES:
DRAINAGE AREA = 4.72 ACRES
1) A CLAY LINER SHALL BE INSTALLED AT LEAST 12° THICK AND MEET THE FOLLOWING SPECIFICATIONS:
PERCENT IMPERVIOUS AREA = 63 % UNIFIED SOIL CLASSIFICATION SYSTEM DESIGNATION OF CL, CH, ML,SC
MINIMUM OF 40% PASSING #200 SIEVE
1.5" WQ ORIFICE @ 284.00 (NORMAL POOL) MNIMUM PLASTICITY INDEX OF 12
TOP OF DAM MAXIMUM PERMEABILITY OF 0.01 IN /HR.
10' V WEIR @ 285.00' A MINIMUM OF 2 TESTS OF EACH ABOVE PARAMETER SHALL BE COMPLETED BY THE CONTRACTOR ON
RISER SPILLWAY O 285.75' THE LINER MATERIAL AND PRESENTED TO THE ENGINEER FOR APPROVAL.
287.00' 4' X 4' I.D. RISER COMPACTION TO A MINIMUM OF 93%, PER ASTM D698, AND WITHIN 3% OF THE OPTIMUM MOISTURE
287.00 TOP OF DAM = 287.00 CONTENT (1 COMPACTION DENSITY TEST PER 2500 SQ. FT.)
SLOPE 3H:1V MIN, FOREBAY BERM THE CLAY LINER SHALL BE PLACED UNDER THE BOTTOM OF THE BMP AND UNDER THE SIDE SLOPES TO AN
5' 100 -YR WSE = 286.57 WETLAND 100 -YEAR WSE = 286.57' ELEVATION OF 284.0 FT. A MINIMUM OF 4 INCHES OF TOPSOIL SHALL BE THE FINISHED GRADE AS SHOWN ON THE
10 -YR WSE = 286.15' DRAWINGS AND /OR DETAILS. CARE SHALL BE TAKEN WHEN TRACKING IN THE TOPSOIL TO NOT PUNCTURE OR
2 -YR WSE = 265.77' OUTFALL CULVERT INV. IN = 281.50' DAMAGE
RITTEN APPROVAL BY THE CLAY/SOIL MIXTURE MAY BE USED IF THE ABOVE SPECIFICATIONS ARE SATISFIED AND WITH
24" RCP INV-284.75 285'0 SLOPE 3H:1V MIN. QUTFALL CULVERT INV. OUT = 281.00'
1" VOLUME WATER QUALITY POOL
2) CUT AND FILL SLOPE 2H:1V OR GREATER SHALL BE STABILIZED WITH PERMANENT SLOPE RETENTION DEVICES
�I 284.0' OR A SUITABLE COMBINATION OF PLANTINGS AND RETENTION DEVICES. SLOPES GREATER THAN 3H:1V SHALL NOT
PERMANENT POOL BE STABILIZED WITH TURF GRASS BUT SHALL BE STABILIZED WITH VEGETATION THAT REQUIRES MINIMAL
- RIPRAP DISSIPATOR MAINTENANCE: WEEPING LOVE GRASS, RED FESCUE, OR OTHER APPROVED VARIETY,
SEE DT. SHT. C3.03
& 3MP #2 SITE PLAN I --
BOTTOM OF FOREBAY 4" TOPSOIL (TYP.) EARTH DAM 3) AT THE CONCLUSION OF CONSTRUCTION ALL EMIRS INSTALLED ON -SITE SHALL CERTIFIED A DESIGN
EL-281.5 PLACED PROFESSIONAL AND THE CITY OF RALEIGH ENGINEERING DEPARTMENT AND NCSU MUST RECEIVE ALL LL AS -BUILT
EVERT DRAWINGS PRIOR TO RECEIVING TO CERTIFICATE OF OCCUPANCY. °°° °°
INVERT SEE OLE PAD °
- - 281.5' SEE OTL. SHT. 03.03 �ARO<� ° °°
WETLAND BOTTOM = 281.5' 281.0' & BMP #2 SITE PLAN 4 F655
12" CLAY LINER ANTI - FLOATATION DEVICE X84
SHALLOW SHALLOW ANTI -SEEP COLLAR
A N, I NEF-� ' e
FOREBAY WATER DEEP POOL -1 18" RCP OUTLET PIPE
284.0 -281.5 285.0 -284.0 283.5 -284.0 284.0 -281.5
STORMWATER WETLAND SECTION
NTS
No. Revision Date B Designer %ale North Shore Condominiums
1 Per NCSU
Revision ter Re_w 10/11/13 BDH W &R 1° = 30' Sheet NO.
2 Per NCSU Stormwater Rev aw 12/12/13 BDH Drawn By oae BMP #2 W I T H E R S RAV E N E L
3 Rev. BMP #2 to Wetland 02 /05 /,4 BDH PAP 09/06/13 Phase 1 STORMWATER WETLAND DETAIL a��.rv° oa,z C3.05
checked By Jon Ne. ENGINEERS I PLANNERS I SURVEYORS
HOF oz13oo0z.0 Raleigh Wake Count North Carolina „S macKenan Dd "e cart, NOrcn caroltna z75„ tel: 9,9- 469d34D rax: 9, 9ae7£DD6 w ".wnnersaveneLaom

Project Name: The Shores at Centennial Campus
City /State: Raleigh, NC
STORMWATER BMP 1 - STORMWATER WETLAND (40% TN Removal)
Land Use
Area
(ac)
% IA
Imp. Area
(ac)
Impervious
0.73
100
0.73
Pervious
0.87
0
0.00
Totals
1 1.6
j
0.73
Total % Impervious Surface Area = 45.6 %
Project #: 2130002
Date: 5- Feb -14
1 -Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler 0 9-
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in. /in.
I = Percent impervious
Rv = 0.46 in. /in.
Total runoff volume from 1 -inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.061 acre -ft
2675 cu. ft.
Water quality pool elevation= 295
Normal pool elevation= 294.00 feet
Temporary ponding depth = 1.00 feet
Storage volume provided = 0.081 acre -ft
3528 cu. ft.
OK

Project Name: The Shores at Centennial Campus
City /State: Raleigh, NC
STORMWATER BMP 1 - WETLAND (40% TN Removal)
Orifice Calculator
Q = CdW(2gh) ^(1/2)
Variables
WQ Volume:
Head:
Draw down time:
Orifice Area =
0.081 Acre -ft
1.00 ft
64 h rs
0.005509 sq. ft
Orifice Diameter = 1.004997 in
USE 1 INCH DIAMETER ORIFICE
3528.36 cf
0.333333 ft
230400 s
0.793267 sq. in
Constants
9=
Cd =
Project #: 2130002
Date: 5- Feb -14
32.2 ft/s2
0.6

�NA����G
AA I It, AV
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all the required information.
I. PROJECT INFORMATION
Project name
Contact name
Phone number
Date
Drainage area number
Site Characteristics
Drainage area
Impervious area
Percent impervious
Design rainfall depth
Peak Flow Calculations
1 -yr, 24 -hr rainfall depth
1-yr, 24 -hr intensity
Pre- development 1 -yr, 24 -hr runoff
Post- development 1 -yr, 24 -hr runoff
Pre/Post 1 -yr, 24 -hr peak control
Storage Volume: Non -SA Waters
Minimum required volume
Volume provided (temporary pool volume)
Storage Volume: SA Waters Parameters
1.S runoff volume
Pie- development 1 -yr, 24 -hr runoff volume
Past- development 1 -yr, 24 -hr runoff volume
Minimum volume required
Volume provided
Otolet Design
Depth of temporary pool /ponding depth (Dp ands)
Qrawdown time
Diameter of orifice
Coefficient of discharge (Co) used in orifice diameter
ca iculation
® ing head (Ho) used in the orifice diameter calculation
Noi1h Shore Condominiums ® Centennial Campus
Hunter Freeman, PE
919.459.3340
October 10, 2013
1
69.696.00 ft
31,798.00 fe
45.6%%
1.00 Inch
3,528;00 ft'
ft3
ft3
ft3
ft 3
ft,
OK
12.00 in
in /hr
14.46
ft3lsec
9.86
ft3 /sec
-4.60
f3 /sec
2,675.00
ft'
3,528;00 ft'
ft3
ft3
ft3
ft 3
ft,
OK
12.00 in
OK
2.70 days
OK
1.00 in
Drawdown orifice diameter may be insufficient. Please provide
adequate supporting calculations.
0.60 (unitless)
1.00 ft
OK
Form SW401- Wetland- Rev.6- 11/16/09 Parts I and 11 Project Design Summary, Page 1 of 3

Surface Areas of Wetland Zones
Surface Area of Entire Wetland
Shallow Land
The shallow land percentage is:
Shallow Water
The shallow water percentage is:
Deep Pool
Forebay portion of deep pool (pretreatment)
The forebay surface area percentage is:
Non - forebay portion of deep pool
The non - forebay deep pool surface area percentage is:
Total of wetland zone areas
Add or subtract the following area from the zones
Topographic Zone Elevations
Temporary Pool Elevation (TPE)
Shallow Land (top)
Permanent Pool Elevation (PPE)
Shallow Water /Deep Pool (top)
Shallow Water bottom
Most shallow point of deep pool's bottom
Deepest point of deep pool's bottom
Design must meet one of the following two options:
This design meets Option #1,
Top of PPE is within 6" of SHWT, If yes:
SHWT (Seasonally High Water Table)
This design meets Option #2,
Wetland has liner with permeability < 0.01 in /hr, If yes:
Depth of topsoil above impermeable liner
Topographic Zone Depths
Temporary Pool
Shallow Land
Pemanent Pool
Shallow Water
Deep Pool (shallowest)
Deep Pool (deepest)
Phnting Plan
Awcattails included in the planting plan?
Nimber of Plants recommended in Shallow Water Area:
Herbaceous (4 +cubic -inch container)
limber of Plants recommended in Shallow Land Area:
Herbaceous (4 +cubic -inch container), OR
Shrubs (1 gallon or larger), OR
Tiees (3 gallon or larger) and Herbaceous (4+ cubic -inch)
Mmber of Plants provided in Shallow Water Area:
Herbaceous (4 +cubic -inch container)
liar ber of Plants provided in Shallow Land Area:
lltrt. ;ceous Wcubic -inch container)
Shr,:•s (1 gallon or larger)
V 3 gallon or larger) and
Grass -like Herbaceous (4+ cubic -inch)
4,041.00 ft'
1,613.00 It'
40%%
1,624.00 fe
40%%
393.00 ft
10%%
411.00 ft
10%%
4,041.00 ft
0.00 ft
295.00 ft amsl
294.00 ft amsl
293.50 ft amsl
292.50 ft amsl
291.00 It amsi
OK
OK
OK
Insufficient forebay area.
OK
OK
N (Y or N)
ft amsl OK
Y (Y or N)
4.00 in OK
12.00 in OK
6.00 in OK
18.00 in OK
36.00 in OK
N (Y or N) OK
450
450
72
9 and 360
406 Higher density is required.
323 More required if not planting shrubs or trees.
13 More required if not planting herb. and/or trees.
Form SW401- Wetland- kev.6- 11/16/09 Parts I and 11 Project Design Summary, Page 2 of 3

Additional Information
Can the design volume be contained?
Y
(Y or N)
OK
Does project drain to SA waters? If yes,
N
(Y or N)
Excess volume must pass through filter,
What is the length of the vegetated filter?
It
Are calculations for supporting the design volume provided in the
Y
(Y or N)
OK
application?
_
Is BMP sized to handle all runoff from ultimate build -out?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
Y
(Y or N)
OK
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
1.60 :1
OK
Approximate wetland length
120.00 it
Approximate wetland width
75.00 it
Approximate surface area using length and width provided
9,000.00
ft,
This approx. surface area is within this number of square feet
of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Form SW401-Wetland- Rev.6 -11 /16/09 Parts I and 11. Project Design Summary', Page 8 of 3

Project Name: The Shores at Centennial Campus
City /State: Raleigh, NC
STORMWATER BMP 2 - STORMWATER WETLAND (40% TN Removal)
Land Use
Area
(ac)
% IA
Imp. Area
(ac)
Impervious
2.98
100
2.98
Pervious
1.74
0
0.00
10629
cu. ft.
Totals
1 4.72
j
j 2.98
Total % Impervious Surface Area = 63.1 %
Project #: 2130002
Date: 5- Feb -14
1 -Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler 0 9,
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in. /in.
I = Percent impervious
Rv = 0.62 in. /in.
Total runoff volume from 1 -inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.243 acre -ft
10592 cu. ft.
Water quality pool elevation=
285
Normal pool elevation=
284.00
feet
Temporary ponding depth =
1.00
feet OK
Storage volume provided =
0.244
acre -ft
10629
cu. ft.

Project Name: The Shores at Centennial Campus
City /State: Raleigh, NC
STORMWATER BMP 2 - WETLAND (40% TN Removal)
Orifice Calculator
Q = Cd *A *(2gh) ^(1/2)
Variables
WQ Volume:
Head:
Draw down time:
Orifice Area =
0.244 Acre -ft
1.00 ft
86 hrs
0.012349 sq. ft
Orifice Diameter = 1.504728 in
USE 2 INCH DIAMETER ORIFICE
10628.64 cf
0.333333 ft
309600 s
1.778303 sq. in
Constants
g=
Cd =
Project #: 2130002
Date: 5- Feb -14
32.2 ft/s2
0.6

NCDE1VR c
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all the required information.
1. PROJECT INFORMATION
Project name Hodh Shore Condominiums 0 Centcn6al Campus
Contact name Hunler Freeman, PE
Phone number 919.469 -3340
Date February 5, 2014
Drainage area number 2
Ill. OES16N INFORMI4TION
3.00
Site Characteristics
1 -yr, 24 -hr intensity
Drainage area
205,603.00 fr
Impervious area
129,808.00 ftz
Percent impervious
63.1%%
Design rainfall depth
1.00 Inch
Peak Flow Calculations
1 -yr, 24 -hr rainfall depth
3.00
in
1 -yr, 24 -hr intensity
0.25
in /hr
Pre - development 1 -yr, 24 -hr runoff
14.46
ft3 /sec
Post - development 1 -yr, 24 -hr runoff
0.99
ft3 /sec
Pre /Post 1 -yr, 24 -hr peak control
-13.47
ft3 /sec
Storage Volume: Non -SA Waters
Diameter of orifice
1.50 in OK
Minimum required volume
10,592.00
n3
Volume provided (temporary pool volume)
10,629,00 ft3 OK
Storage Volume: SA Waters Parameters
1.5" runoff volume
ft3
Pre - development 1 -yr, 24 -hr runoff volume
ft3
Post - development 1 -yr, 24 -hr runoff volume
ft3
Minimum volume required
ft3
Volume provided
ft3
Outlet Design
Depth of temporary pool /ponding depth (DPiant,)
12,00 in OK
Drawdown time
3.58 days OK
Diameter of orifice
1.50 in OK
Coefficient of discharge (Co) used in orifice diameter
0.60 (unities)
calculation
Driving head (Ho) used in the orifice diameter calculation
1.00 ft OK
Form SW401- Wetland- Rev.6- 11/16/09 Parts I and II. Project Design Summary, Page 1 of 3

Surface Areas of Wetland Zones
Surface Area of Entire Wetland
11,799.00 fig
OK
Shallow Land
4,7950 ft'
Insufficient shallow land area.
The shallow land percentage is:
41%%
Shallow Water
4,650.40 fly
OK
The shallow water percentage is:
39%%
Deep Pool
192
Forebay portion of deep pool (pretreatment)
957.00 f
Insufficient forebay area.
The forebay surface area percentage is:
8%%
Non - forebay portion of deep pool
1,389.00 a
OK
The non - forebay deep pool surface area percentage is:
12%%
Total of wetland zone areas
11,799.00 ft'
OK
Add or subtract the following area from the zones
0.00 ft,
More required if not planting herb. and /or trees.
Topographic Zone Elevations
Temporary Pool Elevation (TPE)
Shallow Land (top)
285.00 ft ainsl
Permanent Pool Elevation (PPE)
Shallow Water /Deep Pool (top)
284.00 ft amsl
Shallow Water bottom
283.50 ft amsl
Most shallow point of deep pool's bottom
281.50 ft amsl
Deepest point of deep pool's bottom
281.50 ft amsl
Design must meet one of the following two options:
This design meets Option #1,
N (Y or N)
Top of PPE is within 6" of SHWT, If yes:
SHWT (Seasonally High Water Table)
ft amsl
OK
This design meets Option #2,
Y (Y or N)
Wetland has liner with permeability < 0.01 in /hr, If yes:
Depth of topsoil above impermeable liner
4.00 in
OK
Topographic Zone Depths
Temporary Pool
Shallow Land
12.00 in
OK
Permanent Pool
Shallow Water
6.00 in
OK
Deep Pool (shallowest)
30.00 in
OK
Deep Pool (deepest)
30.00 in
OK
Planting Plan
Are cattails included in the planting plan?
N (Y or N)
OK
Number of Plants recommended in Shallow Water Area:
Herbaceous (4 +cubic -inch container)
1,200
Number of Plants recommended in Shallow Land Area:
Herbaceous (4 +cubic -inch container), OR
1,200
Shrubs (1 gallon or larger), OR
192
Trees (3 gallon or larger) and Herbaceous (4+ cubic -inch)
24 and
960
Number of Plants provided in Shallow Water Area:
Herbaceous (4 +cubic -inch container)
1,162
Higher density is required.
Number of Plants provided in Shallow Land Area:
Herbaceous (4 +cubic -inch container) u
960
More required if not planting shrubs or trees.
Shrubs (1 gallon or larger)
39
More required if not planting herb. and /or trees.
Trees (3 gallon or larger) and
Grass -like Herbaceous (4+ cubic -inch)
Form SW401- Wetland- Rev.6- 11/16/09 Parts I and 11. Project Design Summary, Page 2 of 3

Additional Information
Can the design volume be contained?
r'
(Y or N)
OK
Does project drain to SA waters? If yes,
N
(Y or N)
Excess volume must pass through filter.
What is the length of the vegetated filter?
ft
Are calculations for supporting the design volume provided in the
Y
(Y or N)
OK
application?
Is BMP sized to handle all runoff from ultimate build -out?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
Y
(Y or N)
OK
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
2.77 :1
OK
Approximate wetland length
180-04 ft
Approximate wetland width
65.00 It
Approximate surface area using length and width provided
11,700.00
ft of
This approx. surface area is within this number of square feet
the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Form SW401- Wetland- Rev.6- 11/16/09 Parts I and II. Project Design Summary, Page 3 of 3

BUFFER IMPACT EXHIBITS

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FUTURE PHASE
BMP /2
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NOTES:
1. THE PROPOSED GRADED PORTION OF THE ZONE 2 RIPARIAN BUFFER SHALL \ — — _ \ / — `• \ \
BE RE— VEGETATED IN ACCORDANCE WITH THE SITE REVIEW PERMIT PLANS \`
FOR NORTH SHORE CONDOMINIUMS — PHASE I (CITY OF RALEIGH SITE
PLAN CASE # GH- 1 -13). `•_
LAKE
2. THERE ARE NO PROPOSED WETLAND OR STREAM IMPACTS ASSOCIATED ' RALEIGH
WITH THIS PROJECT.
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I
iBMPa1;'
RESEARCH DRIVE
EXISTING NORTH
CREEK POND BMP
BUFFER IMPACT AREA
(GRADING IN ZONE 2 ONLY)
ZONE 2 IMPACT: 2,746 SF
I I GPMP�S
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.( 11Rt7ZONE_
30_ N _ RB ZONE
LAKE
RALEIGH
SNGRE
0
0
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Q
N
W E
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LAKE
RALEIGH i 0 100' 200' 400'
SCALE: 1' = 200'
W &R ' " =2 ° °' NORTH SHORE CONDOMINIUMS — PH. I Sheet No.
Drawn By Date OVERALL SITE PLAN & WITHERS RAVEN EL
BDH 12/13/13 RALEIGH, NC IMPACT LOCATION MAP ENGINEERS I PLANNERS I SURVEYORS I_
Checked By Job No. 115 MacKenan Drive Cary, North Carolina 27511 Lic. No. c -832
BDH 02130002.0 (NCSU CENTENNIAL CAMPUS) te1: 919- 469 -3340 www.withersravenel.com fax [phone]