20072022 Ver 2_More Info Received_20080516

71 L E T T E R O F T R A N S M I T T A L
A h Ian McMillian Date: May 16, 2008
H O R VAT H DWQ Project: Sierra
Job#. 0713
Civil Engineers
Planners
Landscape Architects Re: Sierra Pre-Construction Notification CC: p r
We are sending W. Comments.
11 Sketch Plans
Ian,
? CD/fgtd Please find revised Sierra pre-construction notification application notification to include:
5 - Calculations
5 - Plans
? Shop Drawings
? Rendering
? Development Plan
0 Sarnples
Please let me know if there is any additional information you require.
Leigh Jaworoski
? Specikatlons
? Changes/Modlt.
? Prlnh /
? Clow
Signature:
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k?q 9 a
MAY 1 6 2008
DENR - WAI'ER UUAUlY
WETLANDS AND STORMWATER BRANCH

North Coroino
16 Consultant Place, Suite 201
Durham, NC 27707
p 919-490-4990 f 919-490-8953
Tennessee
537 Market Street, Suite LOD
Chattanooga, TN 37402
p 423-266-4990 f 423-266-5700
HORVATH
ASSOCIATES
CIVIL ENGINEERS PLANNERS LANDSCAPE ARCHITECTS Q J !p L h
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Sierra
Pre-Construction Notification
Job 0713
North Carolina Tennessee
16 Consultant Place, Suite 201 537 Market Street Suite LL20
Durham, NC 27707 Chattanooga, TN 37402
p 919.490.4990 / f 919.490.8953 p 423.266.4990 / f 423.266.5700

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SIERRA
PRE-CONSTRUCTION NOTIFICATION
SECTION 4011404 PERMIT AND
NATIONWIDE 29 PERMIT APPLICATION NARRATIVE
SIERRA
Doc Nichols Road and Leesville Road
Durham, North Carolina
Horvath Associates Project No: 0713
January 8, 2008
Revised March 19, 2008
Revised May 9, 2008
Prepared for: MacGregor Development Company
201 Shannon Oaks Circle, Suite 201
Cary, North Carolina 27511
[phone]
Prepared by: Horvath Associates, P.A.
Engineers - Planners - Landscape Architects
P.O. Box 51806
Durham, North Carolina 27717
[phone]
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Table of Contents
1. PCN Form
2. Narrative
3. Agent Authorization Form
4. Impact Summaries
5. Overall Impact Maps
6. Wetland Impact Maps
7. BMP Design Checklists
8. Detailed Impervious Area Calculations
9. Channel Design Information
10. Culvert Design Information
11. Required Maps and Project Information
12. Previous DWQ Correspondence
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Office Use Only: Form Version March 05
USACE Action ID No. DWQ No. on - ao a a u 3-
(11 any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing
1. Check all of the approval(s) requested for this project:
? Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here:
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: (?
II. Applicant Information
1. Owner/Applicant Information NiA? 6 X008
wa?hDD??Ret+C'H
Name: Jerry Radman
Mailing Address: East Durham Land Company, LLC NOS WD slur
201 Shannon Oaks Circle
-Rrateigh, NC 27511
C ocw
Telephone Number: [phone] Fax Number: [phone]
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: John E. Schrum, PE
Company Affiliation: Horvath Associates, P.A.
Mailing Address: 16 Consultant Place, Suite 201
Durham, NC 27707
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: john.Schrum(,horvathassociates.com
Updated 11/1/2005
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1 III. Project Information
' Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
' boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Sierra

2. T.I.P. Project Number or State Project Number (NCDOT Only): n/a
' 3. Property Identification Number (Tax PIN): (see attached vicinity map for PINS)
' 4. Location
County: Durham Nearest Town: Durham
Subdivision name (include phase/lot number): Sierra
Directions to site (include road numbers/names, landmarks, etc.): 1-40 to I-540 to Exit 4B,
Glenwood Ave / US-70W. After 3.4 miles turn right at Leesville Road continue to 1.2
miles to intersection with Doc Nichols Road. Site may be accessed via either road main
entrance is <1 mile ahead on Leesville Road left side. See attached vicinity map
' 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.947903 ON 78.789466 °W
6. Property size (acres): 422.60 acres
7. Name of nearest receiving body of water: Lick Creek (27-11-(1.5)) (WS-IV; NSW CA)
' 8. River Basin: Neuse River Basin, NEU01
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/adniin/maps?.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
' at the time of this application: The site is currently forested, undeveloped land. The
surrounding area is primarily rural and suburban residential development
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10. Describe the overall project in detail, including the type of equipment to be used: The
overall project will consist of 369 single-family homes and 130 multi-family townhomes.
' Equipment consistent with grading, earthmovin , and paving will be used.
11. Explain the purpose of the proposed work: The purpose of the project is to provide housing
for homebuyers, increase the tax base of the City of Durham, and populate this growing
region of eastern Durham.
' IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
' certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
' construction schedules. No prior permits have been requested. Buffer determinations NBR 06-
135 and 06-136 were obtained from NCDWQ. Copies are attached.
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V. Future Project Plans
' Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
Future permit requests are not anticipated, but may be submitted as part of future phases that
have not yet been designed.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
' wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
' permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.

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1. Provide a written description of the proposed impacts: The proposed impacts include
two road crossings with culverts, six sanitary sewer crossings, and two fill slope locations.
Additionally, `allowable' impacts are proposed in association with the bypass channels which
convey flows from larger storm events from the proposed BMP's associated with the site.
The impacts will be include stream impacts and Zones 1 and 2 buffer impacts. Mitigation
will be required for some of the impacts.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) (yes/no) (linear feet)
8A Temporary Sanitary Forested Yes 0 0.06
Sewer
Temporary Sanitary
9A Sewer Forested Yes 0 0.214

Total Wetland Impact (acres) 0.274
1 3. List the total acreage (estimated) of all existing wetlands on the property: 20.47 acres
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
' walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
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Stream Impact
Number
(indicate on ma) m Name
; Type of Impact . or
Intermittent Perennial t
? Average
Stream Width
Before Impact Impact
Length
(linear feet) Area of
Impact
(acres)
IA Creek
Earthquake Road Crossing Perennial 2.5 ft 137 0.008
4C Earthquake Creek Road Crossing Perennial 4.1 ft 158 0.014
4D Earthquake Creek Temporary Erosion Perennial 3.2 ft 66* 0.064

Total Stream Impact (by length and acreage) 361* 0.086*
*Note: Temporary erosion control stream impacts included in totals on this page, but not in cumulative impacts.
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.5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact
Site Number
(indicate on ma) Name of Waterbody
(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc.) Area of
Impact
(acres)

Total Open Water Impact (acres) 0.0
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres): 0.022
Wetland Impact (acres): 0.274
Open Water Impact (acres): 0.0
Total Impact to Waters of the U.S. (acres) 0.0
Total Stream Impact (linear feet): 295
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ® uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): dam/embankment and excavation
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): 1-peak flow detention requirement
Current land use in the vicinity of the pond: undeveloped
Size of watershed draining to pond: Expected pond surface area:
*Note: Basins will be designed with phases and are not included in the scope of this design.

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I VII. Impact Justification (Avoidance and Minimization)
' Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
' site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. Extensive avoidance and
' minimization techniques are practiced throughout the site. All wetland impacts will be avoided.
Phased development clusters, including single- and multi-family homes, are located between
Neuse-buffered streams. At the road crossings, headwalls will limit the length of the culverts,
and the culverts are designed to match the existing stream profiles in order to reduce the length
of the required riprap dissipators. Jack and bore techniques will be used to reduce the impacts of
utility line crossings. All unnecessary crossings were avoided in designing the site.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
' for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina (see DWQ website for most current
version.).
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
' of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
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' description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
' Mitigation will be provided through payment-in-lieu program with NCEEP (see below).
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
' that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://www.nceep.net/pages/inlieureplace.htm. If use of the NCEEP is proposed,
' please check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): 295 LF
i Amount of buffer mitigation requested (square feet): 7,831 SF
Amount of Riparian wetland mitigation requested (acres): 0 acres
Amount of Non-riparian wetland mitigation requested (acres): 0 acres
' Amount of Coastal wetland mitigation requested (acres): 0 acres

' IX. Environmental Documentation (required by DWQ)
' 1. Does the project involve an expenditure of public (federal/state/lo
public (federal/state) land? Yes ? No cal) funds or the use of
1 2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
' Yes ? No
I3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
' map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.

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I . Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
' 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.

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Zone* Impact
(square feet) Multiplier Required
Mitigation
1 7,831 3 (2 for Catawba) 23,493
2 0 1.5 0
Total 7,831 23,493
{ Zone I extends out 30 teet perpendicular from the top of the near bank of channel; Zone 2 extends an
' additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
' Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. For the mitigation required, payment into
the Riparian Buffer Restoration Fund is proposed (see attached) Mitigation includes impacts
from utility lines parallel to the stream that encroach on Zone 1 Neuse buffers
' XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. There is no existing impervious area. Proposed
' maximum built-out impervious is 24% of 422.60 acres which is 101.42 acres All stormwater
discharl?es will be diffuse flow, and peak post-development flows will match pre-development
XII. Sewage Disposal (required by DWQ)
' Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sewerage generated by the proposed project will be piped to the City of Durham sanitary sewer
system and treated.
' X111. Violations (required by DWQ)
' Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
' Is this an after-the-fact permit application? Yes ? No
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XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: The
project will include future phases that have not been designed yet but the future phases will use
the current proposed road crossings for access, thereby avoiding future impacts.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
A plicant/Agent's Signature Date
(Agent's i nature is valid only if an authorization letter from the applicant is provided.)
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NARRATIVE
SIERRA
PRE-CONSTRUCTION NOTIFICATION
SECTION 4011404 PERMIT AND
NATIONWIDE 29 PERMIT APPLICATION NARRATIVE
General Description
Sierra is a proposed 422.60-acre subdivision located between the northeast
intersection of Doc Nichols Road and Leesville Road and the southeast corner of
Doc Nichols Road and Olive Branch Road in Durham, North Carolina. It will
consist of single-family homes and town homes and is zoned PDR 3.0. The site is
located along Earthquake Creek and is located in the Neuse River Basin.
Earthquake Creek is classified by US Army Corps as a perennial stream, and the
majority of its tributaries on the site are unimportant intermittent streams.
This project is a phased design. Construction-level design documents are being
reviewed by the City of Durham for only the infrastructure construction, including
Athena, Atlas, and Bowhall roads. Phased pods of single- and multi-family units
will be designed at a later date. However, this permit application will address
the impacts created in the anticipated built out condition.
Application Revisions
North Carolina Division of Water Quality issued a request for more information
related to this application. NC DWQ requested a perennial/intermittent stream
determination and the result of the determination changes the intermittent
' stream crossing to perennial. The result is that both proposed road crossings
affect perennial streams and the impacts to perennial streams therefore exceed
150 If. The Pre-Construction Notification (PCN) has therefore been modified and
' mitigation is now proposed. Given that mitigation is now required, the North
Carolina Ecosystem Enhancement Program (EEP) has approved 590 credits of
stream mitigation. It is important to note that the proposed stream mitigation is
approved for hydrologic unit 'Neuse 03020202' (HU N02) instead of 'Neuse
03020201' (HU N01). EEP is currently not granting stream mitigation credits in
Neuse 03020201 due to the cost of mitigation verses their approved mitigation
fee.
' Sierra subdivision is therefore requesting 295 If of stream mitigation. The fee for
HU N02 is currently $244/If and the proposed mitigation fee is therefore $71,980.
' Additionally, the buffer impact fee request has changed. The revised impact
approved by NC EEP for mitigation is 9,603 sf, which represents portions of buffer
impact where the sanitary sewer system encroaches Zone 1 of the Neuse buffer
' and is parallel to the Neuse Buffer. This is the only form of buffer impacts on the

site that requires mitigation. Given that a 3:1 mitigation ratio is anticipated,
' buffer mitigation credits total 28,809 sf. The mitigation rate is $0.96 per square
foot. Upon accounting for recent site plan changes, it was determined that the
actual buffer impact for parallel sanitary sewer is 7,831 sf. Given the 3:1 ratio,
the mitigation requirement is 23,493 and it is proposed that a payment of
$252,553.28 be paid to the EEP.
NC DWQ issued a request for further information after reviewing the revised
application dated March 20, 2008. The following outline addresses the changes
to the application based on the additional information requested by DWQ.
1) Site Plans NS-1 and NS-7 have been resubmitted on the same scale,
additional construction drawings (C450-C459) have been submitted that
1 show each BMP on a larger scale. These plans include each BMP's outlet
structures and topographic contours all the way to the receiving stream.
2)
a) Each BMP's outlet Channel has been shown on the impact maps and
the impacts are included in the PCN.
b) Channels were altered so they intersect the receiving stream at
' approximately 75° instead of perpendicularly.
c) Channel sizing and lining design information, with cross sections and
discharge velocity calculations for the 10-year storm have been provided.
3) All impacts are shown on the impact maps, enumerated by zone. Larger
scale drawings of each wetland with their impacts have also been provided.
4) Detailed impervious calculations for each drainage area shown on drainage
' map NS-7 have been provided. All street and sidewalk impervious area was
measured in AutoCAD. Impervious area from the lots was estimated using
the impervious area per lot allowable per the approved site plan.
5) Culvert design information including velocity dissipator sizing calculations,
and cross sections of streams showing culverts and dissipator pads have
been provided.
' 6) Atlas drive is not a thoroughfare that will be taken over in the future by
NCDOT, it is therefore under the jurisdiction of the City of Durham Public
Works, Engineering Department. A letter from the City of Durham
' Engineering Department which indicates the wetlands in question adhere to
all of their standards has been included.
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Pre-Construction Notification Narrative
' (This narrative follows the structure of the attached North Carolina PCN
Addendum.)
Section 1: Processing
The permit under consideration is a Nationwide 29 Permit, administered by the
US Army Corps and a 401/404 Water Quality Certification issued by NC DWQ.
Mitigation is required only for Zone 1 buffer impacts where utility lines are parallel
' to a stream; payment to the North Carolina Ecosystem Enhancement Program
(NC EEP) is proposed. Acceptance into the In-Lieu Fee program has been
obtained, and the acceptance letter is attached. Other buffer impacts include
those associated with areas where the proposed connector road crosses the
intermittent and perennial streams and the bypass channels associated with the
nutrient reduction facilities. The nutrient reduction facilities are primarily pocket
wetlands and they are chosen instead of level spreaders because of steep
slopes on the site.
Note that the Nationwide Permit #29 has been issued for this site by US Army
Corps. This permit is included under `Previous DWQ and US Army Corps
Correspondence'.
' Section 2: Applicant Information
The applicant, East Durham Land Company, LLC, has authorized Horvath
Associates as their agent with an agent authorization form. The signed agent
authorization is included in this application package. The contact information
for both parties is included on the PCN.
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Section 3: Project Information
The following maps are attached: USGS, NRCS Soil Survey, vicinity map,
construction drawings (24x36 full size plans), drainage map (24x36 full size plans),
and impact maps (8.5x11 sheets). All stream impacts and buffer impacts appear
on the impact maps.
There are two culvert crossings on the site. Culvert details are shown on the
impact maps and the culvert design profiles (attached). Velocity dissipators are
shown on the impact maps, and calculations are attached. There are no stream
relocations on the site.
The portion of the DWQ Stream Classification List pertinent to this project is
attached. Lick Creek is the nearest receiving stream; some of the site drains to

Martin Branch, which drains to Lick Creek. Martin Branch is not included in the
DWQ Stream Classification List.
' It is important to note that this project is presented in two phases. The initial
phase is construction of the primary road through the project. Each discharge
point is designed and will be constructed as a permanent structure even in
cases where the facility will eventually be abandoned and replaced with a
facility in a future sub-phase. Each proposed stormwater facility will function as
a constructed wetland and will provide 1-year peak flow attenuation in order to
satisfy City of Durham Detention requirements.
The second phase presented shows the future site plan build-out and shows the
pocket wetland associated with each phase. These wetlands are designed to
be the final BMP in place.
Section 4: Prior Project History
Copies of two stream determinations are attached.
Section 5: Future Project Plans
Even though the fully developed, built-out condition is not shown on the impact
' maps (it will be designed in the future), all anticipated impacts are shown. The
owner reserves the right to apply for future impacts based on unanticipated
conditions.
' Section 6: Proposed Impacts to Waters of the US
' The proposed impacts include two culvert crossings (both over perennial
streams), six utility line crossings (all over intermittent streams), and two fill
locations (crossing will be avoided, only buffer impacts). Some of the buffer
impacts are by sanitary sewer that will travel parallel to the stream, and some
are by perpendicular crossings. All perpendicular utility crossings across
' perennial stream will use jack and bore techniques to avoid perennial stream
impacts.
' Additionally, temporary buffer impacts will be created by a temporary diversion
channel to facilitate the installation of the Atlas Drive box culvert.
1 Summaries of the buffer and stream impacts are attached.
All onsite streams have been subject to a stream determination by NC DWQ.
' Steep slopes are pervasive on the site and there are no discharges points where
the slopes are flat enough to accommodate level spreaders. For this reason, all
' points of discharge will be treated for nutrient removal with pocket wetlands.
1

The wetland designs adhere to all aspects of the latest North Carolina Division of
Water Quality Best Management Practices Manual (BMP Manual). The resulting
maximum discharge from each wetland ranges from 0.02 cfs to no more than
0.13 cfs at each discharge point. The result is that the peak outflow resulting
from the 1-inch rainfall will produce little or no erosion.
Section 7: Avoidance and Minimization
Extensive avoidance and minimization techniques are practiced throughout the
site. Wetland impacts do not exceed those impacts necessary to install sanitary
sewer in order to connect to the regional sanitary sewer pump station.
Additionally, the individual pods and phases of the subdivision, including single-
and multi-family homes, are located between the streams with Neuse buffers. As
a result, only two stream crossings are currently planned. Lot layouts avoid all
wetlands and stream buffers on the property.
The Atlas stream crossing (perennial) is 105 degrees and the Athena stream
crossing (intermittent) is 66 degrees. While the Athena crossing is less than 75
degrees, the crossing occurs near a 90-degree bend in the stream. The situation
of the road parallel to the stream buffer allows for an avoidance of impacts,
and the crossing's location avoids impacting a nearby intermittent tributary (to
the north-northeast), while allowing for adequate space to develop pods of lots.
Headwalls are used on each crossing to minimize impacts, but due to the steep
grades around the streams, a balance is proposed to minimize the potential
safety hazard created by excessively high walls.
The use of phasing and pod design also encourages smart erosion and
sediment control. The site will be developed in small sections, which will minimize
the sediment impact at any one time. Greater attention to maintaining erosion
controls can be given to the smaller phases as they are built, too.
Section 8: Mitigation
Approval from NCEEP of the mitigation required is attached. The project will use
the payment-in-lieu program for a total of 7,831 square feet of buffer impacts:
7,831 SF in Zone 1 and 0 SF in Zone 2. The perennial stream impact is 295 linear
t feet, so no stream mitigation is required. The buffer impacts that entail mitigation
include utility lines parallel to the stream that encroach into Zone 1 of the Neuse
buffers. The total amount of mitigation required (with multipliers) is 23,493 SF. The
mitigation will be handled by "Payment into the Riparian Buffer Restoration
Fund." All other buffer impacts are 'allowable' and do not require mitigation.
Section 9: Environmental Documentation
No federal funds will be used, and no NEPA/SEPA documents are required.
1
Section 10: Proposed Impacts on Riparian and Watershed Buffers
(see Section 8 and Section 11)
Given that level spreaders are not feasible for any discharge point on the site,
each discharge point will be treated with pocket/constructed wetlands to meet
alternative nutrient removal requirements. Each wetland will be designed per
the latest North Carolina Best Management Practices Manual (NC BMP) and to
the latest City of Durham standards. City of Durham Stormwater Services will
review each wetland for compliance with water quality standards and City of
Durham requirements.
Nitrogen treatment is not required, because the final site imperviousness will not
exceed 24 percent. The nitrogen loading rate is less than 3.6 pounds per acre
per year, based on the City of Durham's nitrogen loading calculation methods.
All buffers appear on the plans, including 50' North Carolina Neuse Basin buffers
and 100' City of Durham perennial stream Neuse buffers.
Section 11: Stormwater
There is no existing impervious area on the site. The overall site is limited to 24%
impervious in the post-development, fully built-out condition. City of Durham is
responsible for implementation and review of all aspects of the stormwater
management plan, including adherence to the Neuse Buffer rules (NSW) and
water supply watershed rules (WS IV). The August 20, 2007 memorandum to this
effect is attached. All construction document approvals associated with the
stormwater management plan will be forwarded to NC DWQ upon receipt.
Two of the proposed `pods' are currently slated for multi-family town homes.
Each of these pods is to be treated for 85% TSS removal in the post-development
condition.
Section 12: Sewage Disposal
Sewerage generated by the proposed development will be piped into the City
of Durham sanitary sewer system and treated.
Section 13: Violations
This site is not in violation of DWQ Wetland Rules or any Buffer Rules.
Section 14: Cumulative Impacts
This project, based on past and reasonably anticipated future impacts, will not
result in additional development that could affect water quality.
I
1 Section 15: Other Circumstances
None.
1
1
1
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? AGENT AUTHORIZATION FORM
1
1
1
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F C, ,J
\ MI : Jerrv Radman
??m1`an?• : fast Durham Land Crmn.lm. I_I C

Rafcl? t1 ??(

terra --
_?..?0:?: Dgi h-inn. North Caroiin;a

•` Mht?ttt it \i;,%. (,Oilccrn?
''lt.' :lppi mt. ht r?l?\ U?SI??t?'?C? ;lI1C? ?.LiI?10ri7? I loiA-ith Associates. P. A. fLo ac't on m,
;\ Cllit ill i le prose s i'`, of remilt apphcauons and to furnish upon request supp!,m !l!af
r!l !111 ?titl!1 ill >"111,port of ?ppllcatfon5, from this da% tom and for the aboV ; named prt`fel".-
I cenit\ :hat 1 ain a re>ponsible (Al"icer. pirtncr. or o«ner of the company. This sii,narure
cCe11111es that the applicant has title to the propzrt. or has been attthOri7cd by the tnvrnr to app1v
Cdr Zertiflcafion. 1;tld agent in Siunin*2 the application shall also certik th:lt all
contained 1,11m.ii1 (:)r in ?tippoii thereof is tole and l orrei t to the hest o (his. her kno« 1Ld_e.
This notification ?upcrcedes ails pre,. inn.-; corre-gvndence concemiiTg, the agent ror this proJect.
avrti1?
Print Applicant's 'Naline
ti.
?'Q,??ieant's Si??riatur?[`GttS??A't1J--S
Date
?a1?4'a4Q-?4Q F4i'1.t4Qs?4$:}'
romme ssCe
-,}Trtntx totSn r?r. Su;ir? IEM,
chafiQ .(,+Qq T 'AC-2
1
1
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IMPACT SUMMARIES
1
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1
0713 Section 401 Impact Summary.xls
Overall Impact Summary
Wetland Impacts:
Total Wetland Impact: 11,956 Is q. ft
0.274 acres
Impact # Area Area
(sq. ft) (acres)
8A 2,628 0.060
9A 9,328 0.214
Stream Impacts:
Intermittent Perennial Total
NWP 29 Stream Impact: 0 295 295 linear feet
Impact Stream Type of Perennial
Impact
Impact
# Name Impact or Comment Length (If) Area (sf)
Intermittent
Earthquake W/
I A
Creek Culvert Perennial Diss 137 346
4C Earthquake Culvert Perennial W/ 158 594
Creek Dissi ator
Buffer Impacts Requiring Mitigation:
Impact
# Type of
Impact Stream Zone 1 Impact
2 4,526 s q. feet
SS Parallel Intermittent 0.104 acres
3 834 s q. feet
SS Parallel Intermittent 0.019 acres
4A 149 s q. feet
SS Parallel perennial 0.003 acres
5 SS P
l
l i 419 s q. feet
aral
e perenn
al 0.010 acres
5A S 1,851 s q. feet
Parallel
S perennial 0.042 acres
6 52 s q. feet
SS Parallel perennial 0.001 acres
Total Zone 1 7,831 s q. feet
Impacts 0.180 acres
Note: The only stream impacts requiring mitigation are the ones
listed above
Bill Price
5/16/2008

1
1

t
0713 Section 401 Impact Summary.xls
Overall Impact Summary
Buffer Impacts:
Total Zone 1 Impacts;
Total Zone 2 Impacts;
Total Buffer Impacts;
[so. feetl racresl
55,774 1.280
87,999 2.020
143,773 3.301
Impact Zone 1 Impact Zone 2 m pact Total Im pact
1 2,361 s q. feet 2,021 s q. feet 4,382 s q. feet
0.054 acres 0.046 acres 0.101 acres
1A 8,411 s q. feet 4,360 s q. feet 12,771 s q. feet
0.193 acres 0.100 acres 0.293 acres
2 6,131 s q. feet 17,025 s q. feet 23,156 s q. feet
0.141 acres 0.391 acres 0.532 acres
2A 2,164 s q. feet 604 s q. feet 2,768 s q. feet
0.050 acres 0.014 acres 0.064 acres
3 3,016 s . feet 5,392 s q. feet 8,408 s q. feet
0.069 acres 0.124 acres 0.193 acres
3A 2,786 s q. feet 110 s q. feet 2,896 s q. feet
0.064 acres 0.003 acres 0.066 acres
313 0 s q. feet 3,906 s q. feet 3,906 s q. feet
0.000 acres 0.090 acres 0.090 acres
4 4,187 s q. feet 2,088 s q. feet 6,275 s q. feet
0.096 acres 0.048 acres 0.144 acres
4A 899 s q. feet 6,475 s q. feet 7,374 s q. feet
0.021 acres 0.149 acres 0.169 acres
46 2,911 s q. feet 3,097 s q. feet 6,008 s q. feet
0.067 acres 0.071 acres 0.138 acres
4C 10,603 s q. feet 6,444 s q. feet 17,047 s q. feet
0.243 acres 0.148 acres 0.391 acres
5 1,105 s q. feet 4,522 s q. feet 5,627 s q. feet
0.025 acres 0.104 acres 0.129 acres
5A 4,255 s q. feet 13,248 s q. feet 17,503 s q. feet
0.098 acres 0.304 acres 0.402 acres
6 2,215 s q. feet 10,602 s q. feet 12,817 s q. feet
0.051 acres 0.243 acres 0.294 acres
7 0 s q. feet 1,960 s q. feet 1,960 s q. feet
0.000 acres 0.045 acres 0.045 acres
8 0 s q. feet 4,935 s q. feet 4,935 s q. feet
0.000 acres 0.113 acres 0.113 acres
9 1,819 s q. feet 1,210 s q. feet 3,029 s q. feet
0.042 acres 0.028 acres 0.070 acres
11 2,661 s q. feet 0 s q. feet 2,661 s q. feet
0.061 acres 0.000 acres 0.061 acres
12 250 s q. feet 0 s q. feet 250 I s . feet
0.006 acres 0.000 acres 0.006 acres
Bill Price
5/16/2008
' 0713 Section 401 Impact Summary.xls
List of Impacts
Impact SF Zone Comment
Oran

Stream
1
1 2361
693 1
2 ss perp
ss perp intermittent
intermittent
1 1328 2 ss perp intermittent
1 68 S ss perp intermittent
1 A 8411 1 road cross perennial
1 A 2880 2 road cross perennial
1 A 1480 2 road cross perennial
1 A 1382 T EC&I temporary
1 A 346 S road cross perennial
2 1504 1 ss parallel intermittent
2 2597 1 ss parallel intermittent
2 425 1 ss parallel intermittent
' 2 16435 2 ss parallel intermittent
2 837 1 Wetland 1 B Channel intermittent
2 100 2 Wetland 1 B Channel intermittent
2 768 1 Wetland 7 Channel intermittent
2 490 2 Wetland 7 Channel intermittent
2A 2164 1 ss perp intermittent
2A 604 2 ss perp intermittent
2A 82 S ss perp intermittent
3 834 1 ss parallel intermittent
3
3 5392
2182 2
1 ss parallel
ss perp intermittent
intermittent
3 77 S ss perp intermittent
3A 2786 1 ss perp perennial
3A 110 2 ss perp perennial
3A 161 S ss perp perennial
313 3906 2 ss parallel perennial
' 4
4 1899
2288 1
1 ss perp
ss perp intermittent
perennial
4 978 2 ss perp perennial
4 1110 2 ss perp perennial
4 130 S ss perp perennial
4 63 S ss perp intermittent
4A 3447 2 ss parallel perennial
4A 2438 2 ss parallel perennial
4A 750 1 Wetland 8A Channel perennial
4A 590 2 Wetland 8A Channel perennial
4A 149 1 ss parallel perennial
413 2180 1 ss perp intermittent
' 413 964 2 ss perp intermittent
413 1081 2 ss perp intermittent
413
413 71
731 S
1 ss perp
Wetland 9 Channel intermittent
intermittent
413 1052 2 Wetland 9 Channel intermittent
4C 10603 1 road cross perennial
4C 3140 2 road cross perennial
4C 3304 2 road cross perennial
4C 594 S road cross perennial
4C 1385 T EC&S perennial
5 ,
419 1 ss parallel perennial
5 625 2 ss parallel perennial
5 2837 2 ss parallel perennial
5 686 1 Wetland 86 Channel perennial
Horvath Associates
5/6/2008
Impact LF Comment Stream
Area
1 A 137 road cross perennial
4C 158 road cross perennial
*Bold and italicized = mitigation required
Stream Summary Table
Intermittent 0 linear feet
Perennial 295 linear feet
Mifianfinn Summarv Table
Zone 1 ft2 Zone 2 ft2
Impacts 7,831 0
Multiplier 3 1.5
Credits Needed 23,493 0
Credits Approved 87,060 14,948
Wetland Summary Table
l
t 11,956 square feet
Tota
Impac
s 0.27 acres
Temporary Erosion Control Summary Table
To
l Impacts 2,767 square feet
ta 0.064 acres
1
' 0713 Section 401 Impact Summary.xls
List of Impacts

Impact SF Zone Comment Stream
5 1060 2 Wetland 8B Channel perennial
5A 2404 1 ss perp perennial
5A 863 2 ss perp perennial
5A 139 S ss perp perennial
5A 6272 2 ss parallel perennial
SA 497 1 ss parallel perennial
5A 1162 1 ss parallel perennial
5A 3887 2 ss parallel perennial
5A 2226 2 ss parallel perennial
SA 192 1 ss parallel perennial
6 10602 2 ss parallel perennial
6 2163 1 ss perp intermittent
6 78 S ss perp intermittent
6 52 1 ss parallel intermittent
7 1960 2 ss parallel perennial
8 4935 2 ss parallel perennial
8A 2628 W ss parallel wetland
9 1819 1 ss perp perennial
9 604 2 ss perp perennial
9 606 2 ss perp perennial
9 584 S ss perp perennial
9A 515 W ss parallel wetland
9A 8813 W ss perp wetland
11 749 1 road fill intermittent
11 1912 1 road fill intermittent
12 250 1 road fill intermittent
Horvath Associates
5/6/2008
1
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OVERALL IMPACT MAPS
1
1
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PIN 0360-03-33-3314 PID: 193344
PIN 0860-01-20-8767 PID: 193361

SIERRA PIN: 0769-01-28 5772

PIN: 0709-01 27-6679 PID: 193301

PID: 203869
IMPACT MAPS
LEESVILLE ROAD AND DOC NICHOLS ROAD
DURHAM, NORTH CAROLINA

WAKE FOREST HWY. INC 98)

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LEESVILLE ROAD

VICINITY MAP
NO SCALE

DEVELOPMENT SUMMARY
'
DEVELOPER SITE DATA LEGEND
EAST DURHAM LAND COMPANY, LLC TOTAL LAND AREA: AC or SF
MIKE WHITEHEAD ZONING: PDR 3.0 CH: STREAM CHANNEL
' CARY, NC PROPOSED U SE: RESIDENTIAL NB: NEUSE RIVER BASIN BUFFER
[phone] EXISTING USE: VACANT WL: WETLAND
RIVER BASIN: NEUSE RIVER (F-J/B) Z1: ZONE 1 (30' FROM TOP OF BANK)
' Z2: ZONE 2 (20' FROM ZONE 1)

HORVATH ASSOCIATES, P.A. PROJECT COVER SHEET Proj #
16 CONSU
T 0713
'
L
ANT PLACE, SUITE 201

DURHAM, NORTH CAROLINA 27707
Sierra Drwn By: JC Dwg No
P 919.490.4990 F 919.490.8953 Leesville & Doc Nichols R Chk B : JR 1

www
horvathas
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Date:
11/21/07
' .
soc
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N/A

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LOTS WITHIN TUA .,....,,
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SEESHEET #2 - - ?-
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FO? IMPACTS SEE #23.
\
ACTS
iIPACT 9;AND9A)
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SEES EET#6
r FORaMPAC SI - 4 FOR IMPACTS
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O IMPACTS
EE SKEET #20 NO IMPACTS
FOR IMPACTS ;
' ?f = EESHEET #24°
?,.. , (IMPACT 7 AND 8)
FOR, IMPP,CTS 1
ACT 12) , I
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0 250 500 1000
~\` SEE SHEET #14
v FOR IMPACTS
SCALE: 1"= 500' (IMPACT 4C, 5 AND 5A)
OVERALL SITE MAP Proj #
0713
Sierra Drwn By: JC Dwg No
Leesville & Doc Nichols R Chk B : JR 2
Durham, North Carolina Date: 11/21/07 Scale: 1 °= 500' 2 of
rT r ?' r f L: 3 ll j
--------------
' ?SEESHEE # 1(1 ' ?;'?r',
?FOR,fMP ,.CTS.---?=?•? , ,
d
(IMPACTC,IA,148 NDAQ), '

SEE',&NEET;#25
FOR IMPACTS
(IMPACT 13)
WETLAND DELINEATION PREPARED BY S&EC, INC, SURVEYED
BY MSS LAND CONSULTANTS AND APPROVED BY THE RALEIGH
REGULATORY FIELD OFFICE ON 28 SEPTEMBER 2005.
7"- \ A*6 R L.p, 'F
L
r \
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30 PURLIC SANITARY
/ SEE SHT 4 - IMPACT / - SEWER EASEMENT
FOR-ARO-EILE- --- AREA #JA
? /' \ - _ 30' P SANITARY
EASEMENT
i

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IMPACT
d
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f ? ? .\ 1 SE9 S,HT 5 0 ; d I
FOR PROFILE A/ ? f r,' r
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f

IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
1
Buffer &
NB Z1
2,361
----
Stream Z2 2,021 ----
(Sanitary
Sewer) TOTAL 4,382
1A NB Z1 8,411 137'
Buffer & Z2 4,360 ----
Stream
(Culvert) TOTAL 12,771
NOTE: ALL PERENNIAL SS CROSSINGS SHALL
BE AERIAL OR INSTALLED BY'JACK AND
BORE'
IMPACT MAP #1 Proj #
0713
Sierra Drwn By: JC Dwg No
sville & Doc Nichols R
L Chk B : JR 3
ee Date: 11/21/07
Durham, North Carolina
Scale: 1 "= 100' 3 of
i

1

4' HIGH PVC COATED
CHAIN LINK FNECE
(FOREST GREEN OR BLACK)
39C
38(
37(
36(
DATUM ELEV
350.00
HIGH PVC COATED
AIN LINK FNECE
REST GREEN OR BLACK)
50 RCP CULVERT
1• BURY)
EXISTING GRADE
CENTERLINE
I2'L X 17'W X 24" D PLUNGE
'OOL VELOCITY DISSIPATOR
INED WITH CLASS'1' RIPRAP
:1 ::)CULVERT PROFILE
4 SCALE 1°=69
IMPACT PROFILE
Sierra Drwn By: JC
Leesville & Doc Nichols R Chk B : JR
Date: 11/21/07
Durham, North Carolina scale: 1 °= 60'
Proj #
0713
>wg No
4
4 of
10+00 10+50 11+00 11+50
1
i
JJ a
2 0. Z S 1
7
ND?F- Z ?a 9 F- ?N ???M
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EXISTING GRAD
50' LEFT OF CENTERLINE
El I
EXISTING GRAD
CENTERLINE
? I
1 ?? ?f I
1
/ EXISTING GRAD
50' RIGHT OF CENTERLINE
? W
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12"fd PVC
5 LF @ 0.:Ap% '
67LF@ 1.01% ( I
12"0 PVC 240 L .20%
' 18"0 PVC /
tl l-l
SANIT RY SEWER ROFILE
SCALE: I?W
HORVATH ASSOCIATES, P.A. IMPACT PROFILE Proj #
071
16 CONSULTANT PLACE, SUITE 201 3
DURHAM, NORTH CAROLINA 27707 Sierra Drwn By: JC Dwg No
' P 919.490.4990 F 919.490.8953 Leesville & Doc Nichols R Chk B : JR 5
Date: 11/21/07
www.horvathassociates.com Durham, North Carolina Scale: 11 1 3 of
1
1
1
1
1
1
1
1
1
1
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/SEW ER EAS ENT
IMPACT
IMPACT TYPE SQ. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
2

Buffer

Z1
NB

4,526

----
Only Z2 16,435 ----
(Sanita
Sewer TOTAL 20,961
2
NB
Buffer Z1 837 ----
Only Z2 100 ----
1B Bypass
Channel)
TOTAL
937
2

Buffer

Z1
NB

768

----
Only Z2 490 ----
(7 Bypass
Channel
TOTAL
1,258
2A
NB
Buffer & Z1 2,164 ----
Stream Z2 604 ----
Sanitary
ewer) TOTAL 2,768
IMPACT MAP #2
Sierra Drwn By: JC
Leesville & Doc Nichols R Chk B : JR
Date: 11/21/07
Durham, North Carolina Scale: 1"-100'
Proj #
0713
Dwg No
6
3 of
-
1 I
I

370

' 360

'
350

0
M
2 SANITARY SEWER PROFILE
7 SCALE V?NY

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Or' M Y
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pr?jO ? -?ZZ
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DATUM ELEV
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0

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0
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Cl) O
=
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10+00
HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707
' P 919.490.4990 F 919.490.8953
www.horvathassociates.com
10+50 11+00
V
b
O
Z
EXISTING GRADE
25' LEFT OF CENTERLINE
EXISTING GRADE
CENTERLINE
EXISTING GRADE
25' RIGHT OF CENTERLINE
IMPACT PROFILE Prot #
0713
Sierra Drwn By: JC Dwg No
Leesville & Doc Nichols R Chk B : JR 7
Date: 11/21/07
Durham, North Carolina Scale: 1 "= 50' 3 of

V-AVOJD NITARY SEWERS INSTALLED UNDER
RENNIAL STREAMS WILL BE INSTALLED-
ING THE 'JACK' AND BORE' METHOD TO SF! w
i 1:1 STREAM IMPACTS
FC?R ?
f V \
IMPACT.
f - r 1
AREA #3
/ r
SEE SHT 9,,
-? / 30 PUBLIC SANfTARY
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FOR; PROFILE.
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app I,YI P../1CT--
--' / I 30.E L??SaNIlPPARr 'AREA #3A-
, 'ASEMEyT
8ur
f ? r
G I / I 1 r // ?, /? 1! i
,
Z
IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
3
Buffer
NB Z1
3,016
----
Only Z2 5,392 ----
(Sanitary
Sewer)
TOTAL
8,408
3A
Buffer &
NB Z1
2,786
----
Stream Z2 110 ----
(Sanitary
Sewer) TOTAL 2,896
36 NB
Buffer Z1
- - - -
----
Only Z2 3,906 ----
(Sanitary
Sewer)
TOTAL
3,906

IMPACT MAP #3 Proj #
0713
Sierra Dfwn By: JC Dwg No
hols R
& D
Ni
ill
L Chk B : JR 8
oc
c
eesv
e Date: 11/21/07
Durham, North Carolina
Scale: V'= 100' 3 of
?I
N C4
.N
J
04
)?
0? nn-
2-0 , :O
:z
EXISTING GRADE
25' LEFT OF CENTERLINE
360
EXISTING GRADE
' CENTERLINE
' EXISTING GRADE
25' RIGHT OF CENTER
350
340.07
Cl) co co co
' 10+00 10+50
SANITARY SEWER PROFILE
9 SCALE
' HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707
P 919.490.4990 F 919.490.8953
www.horvathassociates.com
LIN E
EXIST
25' LE
36
EXIST
CEN
EXISI
25' R
35
34
DATUM ELEG
335.00
?I

^ Cr?O

N GRADE
F OF CENTERLINE
I
N I
GRADE
E LINE
1 6-6R,4BE
HT OF CENTERLINE i

) 1,
/1 0-1

V
w

w U
> d
NO
U z
D
105 LF ? 1
/8"o DIP

co
v
M .o
v
M o cl
v °
M M q
h
M n
h
Cl)
10+00 10+50 11+00
SANITARY SEWER PROFILE
9 SCALE 1' W
IMPACT PROFILES Proj #
0713
Sierra Drwn By: JC Dwg No
l
& D
Ni
h
R
L
ill Chk B : JR 9
s
oc
c
o
eesv
e Date: 11/21/07
Durham, North Carolina Scale: I"= 50' 3 of
v a Y
? Z Z'J

r
f ? (f
`
r/
r 1
r }1
rr`
V '
ri

`I1I

r EI
r\

r
r
r

NITARY SEWERS INSTALLED SEEiSHT I I
El"ERENNIAL-STREAMS WILL
FOR PROFILE - l
STAI.!<ED USING THE'JACK
BORE'`METHOD TO AVOID./"--
IV[ IMPACI<S" IMPJ46T
ARE`A'#4
1_0 RAPROFILIE- \ -
L
.
/? • ?? /r' v ? "30' au CSANR
/ ?` ?---- '
,- ? SEWER SEMENT
,
s
r, ?` ,- - 3EE SHT 12 , ?.
•
/AREFOR, PROFILE
` l
f
F
NO. (CH and WL) CH ONLY
J f
30' P BLIc
S ER EPe
i
d1l
IMPACT TYPE S0. FT. LINEAR FT.

4

Buffer &

Z1
NB

4,187
Stream Z2 2,088
(Sanitary ----
Sewer) TOTAL 6,275
4A

Buffer
NB
Z1

149

----
Only Z2 5,885 ----
Sanitary
ewer) TOTAL 6,034
4A
NB
Buffer Z1 750 ----
Only
(8A Bypass Z2 590 ----
Channel) TOTAL 1,340
48 Buffer & NB Z1 2,180 ----
Stream Z2 2,045
(Sanitary
Sewer) TOTAL 4,225
46

Buffer
NB
Z1

731

----
Only
(9 Bypass Z2 1,052 ----
Channel) TOTAL 1,783
Buffer & NB Z1 10,603 158'
Stream Z2 6,444 ----
(Culvert) TOTAL 17,047
IMPACT MAP #4 Proj #
0713
Sierra Drwn By: JC Dwg No
Leesville & Doc Nichols R Chk B : JR 10
Date: 11/21/07
Durham, North Carolina Scale: 1 "- 50' 3 of
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

i

t

F
• ?.
? ?
1 N.
®

zc_? ?y

<> ?W
z

?
(D
U mu

139 LF
I T 0.20% 18"0 DIP 95 LF @ 0.20% 18,10 PVC
1
137 LF @ 0.20%I
18"0 DI?

0

p M

ri M M

N M
6 M
M

t+7
Cl)
7 Cl)
v M M

h

0?

M

M M
M
M
+
M M Z 0
c m
h Z Q +
oo M
?ZZ x
?
1 ?»
?zz
c
<
a-
N
>>
-
SA ITARY SEWE R PROFILE
I SCALE 1"=SU
o
N

v
c') O
v

v
co
N

v
co N
O

v
M of

v
M v
O

11
M O
v

u1
M ?
0

v
M O
N

v
co
o

<
M
co

h
co

M

M
h
M

h

M

n
M
36 100 36 150 371 00 37- 50 38- 00 38 50 39 100 39 150
Proj #
HORVATH ASSOCIATES, P.A. IMPACT PROFILE
0713
16 CONSULTANT PLACE, SUITE 201
27707
OL
N
Sierra Drwn By: JC Dwg No
DURHAM, NORTH CAR
I
A
P 919.490.4990 F 919.490.8953 Ni
h
l
R
ill
& D
L Chk B : JR 11
oc
c
o
s
eesv
e Date: 11/21/07
www.horvathassociates.com Durham, North Carolina Scale: 1"= 50' 3 of
i ft
i
i
i
HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
' DURHAM, NORTH CAROLINA 27707
P 919.490.4990 F 919.490.8953
www.horvathassociates.com

> 2
P ?
=?O
z z
XISTING GRADE
5' LEFT OF CENTERLINE
EXISTING GRADE
CENTERLINE
EXISTING GRADE
25' RIGHT OF CENTERLINE
SANITARY SEWER PROFILE
12 SCALE: 1=5(Y
IMPACT PROFILE
Sierra Drwn By: JC
Leesville & Doc Nichols R Chk B : A
Durham, North Carolina Date: 11/21/07
Scale: 1 °- 50'
Proj #
0713
)wg No
12
3 of
10+00 10+50

I I

11
10+00 10+50
HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707
P 919.490.4990 F 919.490.8953
www.horvathassociates.com

11 11 Ef,
A t7
hv?-
-?HAIN LINK, FE14CE
FOREST GREET
HEA
DATUM EL6
320.00
a?
3
4SLxMft 24" D PLUNGE
POOL VELOCITY DISSIPATOR
NCDOT CLASS 1 RIPRAP
CULVERT PROFILE
3 SCALE 1'=50'
11+00 11+50
IMPACT PROFILE Proj #
0713
Sierra Drwn By: JC Dwg No
Leesville & Doc Nichols R Chk B : JR 13
Date: 11/21/07
North Carolina 3of
Scale: 1 "= 50 50' '
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0' PUBLIC SA?RY__- - / ^' .y'/"` 'i?`?. e ?( !`?
?SF"WEREASEMENT , - _
1 ?
C3` \ ?.
f ?Z
IMPACT
AREA #5&
f ?
??? Z 3N02
_ nom /,? 'l- Z i ;/ 4 4 ^t\A
EMVj
,
Z /
m
/ SEE SHT-15 .--_ _.. ?? t-?'•. ??5?
FOR PROFILE 1 j tt
\?r r? L ?\ \\ \ ? 4
r
_ SEE SHT 16, ytiotia?
FOR PROFILE --
\
-•` ,\ \._.. ? -.. __-_ '""'J ._.,- -•_ --- ? I -- !?! ? 't 1/' d -+ .\.. ? ?.. ?? m i /C , ZONE.
N
j- IMPACT. _z"E
.- "-- _ 'AREA # a?A- --
SANITAgY SEWERSINST LLE6,UN6ER `, ?' `; - -•`
% _ -
PERENNIAL STREAMaS;~.W 1ryB INSTALLED
e s 30 PUBLIC SANRARY - \
_USINQJH ACK A 6 Y METHOD TO SEWER j?ASEIVENT
r' IMPACT,
? -VOO-STREAMJMPv , S,
PO" \, AR
j Jti\/
r f // r J°v
i

. 4,1. .
IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
Buffer & NB Z1 10,603 158'
Stream Z2 6,444 ----
(Culvert) TOTAL 17,047
5
Buffer
NB Z1
419 ----
Only Z2 3,462 ----
(Sanitary
Sewer)
TOTAL
3.881
5
Buffer
NB Z1
686 ----
Only
(86 Bypass Z2 1,060 ----

Channel) TOTAL 1,746
5A
Buffer &
NB Z1
4,255 ----
Stream Z2 13,248 ----
Sanitary
ewer)
TOTAL
17,503
IMPACT MAP #5 Proj #
0713
Sierra Drwn By: JC Dwg No
Leesville & Doc Nichols R Chk B : JR 14
Durham, North Carolina Date: 11/21/07 3of
Scale: 1 "= 100'
1
1
1

1
1
1
HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707
P 919.490.4990 F 919.490.8953
www.horvathassociates.com
IMPACT PROFILE Proj #
0713
Sierra Drwn By: JC Dwg No
l
R
Ni
h
D Chk B : JR 15
o
s
c
oc
Leesville & Date: 11/21/07
Durham, North Carolina Scale: 1"= 50' 3 of
i
1
i
33(
i
32(
1
l
1
1
' HORVATH ASSOCIATES, P.A.
16 CONSULTANT PLACE, SUITE 201
DURHAM, NORTH CAROLINA 27707
1 P 919.490.4990 F 919.490.8953
www.horvathassociates.com
a_
xx
_-N
? N N M
>ZZ
zzz
EXISTING GRADE
25' LEFT OF CENTERLINE
EXISTING GRADE
CENTERLINE
EXISTING GRADE
25' RIGHT OF CENTERLINE
0+00 10+50
SANITARY SEWER PROFILE
6 SCALE 7"=50'
IMPACT PROFILE
Sierra Drwn By: JC
Leesville & Doc Nichols R Chk B : JR
Date: 11/21/
Durham, North Carolina Sale: 150'
Proj #
0713
)wg No
16
3 of
1
1
1
1
1
1
1
1
1
1
1
1

SANITARY SEWERS INSTALLED UNDER
- PERENNIAL STREAMS WILL BE INSTALL?D
NG THE, JACK AND BORE METHOD TO
US
,
r
AVOID STREAM IMPACTS
-Zi

: `r
.-
i
r? / y
\

\ - \ l 30' PUBLIC SANRARY
EWEREA$-MENi
\_ -

%
5 a _ FF
?/

l
\' i •
! f
4
AEE SHT 18
h -?OR PR01=1LE
2 1 ?: s 30' PUBLIC SANRARY
np \? Y I? t \ SEWER-EASEMENT . -
`? -
Ljj
IMPACT J?--- - ,
'REA
off, a r
s
01-
s
12
4
i'
fi
\? - ? ------? IMP, /
- AREA #5

IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
5A
Buffer NB Z1 4,255 ----
Only Z2 13,248 ----
(Sanitary TOTAL 17,503
Sewer)
NB
Buffer Z1 2,215 ----
Only Z2 10,602 ----
(Sanitary TOTAL 12,817
Sewer
-- v t ?,?? l l / ll
IMPACT MAP #6 Proj #
0713
Sierra Drwn By: JC Dwg No
& Doc Nichols R
ill
L Chk B : JR 17
eesv
e Date: 11/21/07
Durham, North Carolina Scale: I"= "= 100' 3 of
?I

f
EX TING GRADE !
SO LEFT OF CENTERLINE I

EX
STING GRADE I
?
CE NTERLINE

I
i EX
50" TING GRADE
RIGHT OF CENTERLINE ?
GGG

I
r DUCTILE IRON LOCK-!
PIPE REQUIRED FOR A D
L NT
AERIEL
CROSSING PER CITY DUR'iAM
STANDARDS

2 -
? i

6
6 LF 69
? %
8
0
? A-1

r Y
LF @ 0.20%
;60
i

53 LF! 0.20% I

67

r T L8° nip
f ?c-? --fir PVC 9

1
I Y

o °J n
am REINF
)r> PIER - RCED CONCRETE
SEE DETAIL v
co Mo h m y M ° vi
,
1-: F

N

?
+

M

o
M

O
_t

?

M

?O

+ m
N In 7= 0
"on ,

m
7
}
?°rmi?O
o
<=< .c
vzp
r
? M -
<?z z ou%
cc
i"'
z n
C
G
N
yzZ
N d'?? c
??'-a,Z Z
<
N
m N
co N
m
1 N
c') N
M
1 U
M
M ?` N
m
57 50 58 00
58
50 59
00
SANITARY SEWER PROFILE
SCALE 1'=W
Proj #
P.A.
HORVATH ASSOCIATES IMPACT PROFILE
, 0713
16 CONSULTANT PLACE, SUITE 201
Sierra Drwn By: JC Dwg No
DURHAM, NORTH CAROLINA 27707
8953
490
4990 F 919
490
919 R
h
l
Ni
.
.
.
.
P s
o
c
Leesville & Doc Date: : 11/21/07
Date:
www.horvathassociates.com Durham, North Carolina Sale: 1"= 50' 3 of
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
. - i
--IMPACT _ r
_ -AREA 7-
_ ?- 30 PUBLIC SANITARY \ - ' ? "l)
-SEWER EASEMENT - -.- ... -30' PUBLIC SANTARY
J
??--
v - / - - -.- SEWER-EA3EFdECR
o _ \
- - - - - - - - - - - -
N
u - ZONE 1 - - ???` - -
w ZONE 2 LL ..
20
ZONE 1
NE2 ?..
ZONE1 moo/ 'r\ 1
- -
Ole)
ZONE I
ZONE 2
. `. Z w . .. ZONE I ? < ___ ??'`• \` T
-- ?? ZONE•? __ i ZONE
• _L.? p m ?••fONE2 ???. ?!? . ?,.
---
- - IMPACT"-
--------------
AREA ____ irb
F /
V,
,
-'-
J
f r ?
IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
s

Buffer
NB
Z1

2,215
Only Z2 10,602 ----
(Sanitary
Sewer) TOTAL 12,817
Buffer NB Z1 - - - - ----
Only Z2 1,960 ----
Sanitary
ewer)
TOTAL
1,960
/I 7?4
IMPACT MAP #7 Proj #
0713
Sierra Drwn By: JC Dwg No
h
l
R
Ni
ill
& D
L Chk B : JR 19
o
s
c
eesv
oc
e Date: 11/21/07
Durham, North Carolina Scale: 1"= 100' 3 of
t
1
1
/
IMPACT
AREA{
ZONE... ?-
? Q- - ? 0' UBLIC SANIfARX % r I
(ticl,SE ER EASEMENT / _. .
l? i \?\\\. , ! \ \ ``?,_ ZONF ?`\\ / /\..\ \\\; 30'PUBLIC SANITARY
\` ..\ti, !\ \ \ y'fI?gNO \ \` _ \ \ \ \ SEWER EASEMENT \ l,? \
I°`^F?\_ IMPACT
'? ?\ ?? ??`, \ ?,? • f ???/ y??,/ \/ AREA V, '-
Ile
--------------
ILI
?? z eP` 16 ?\
1 `Yo
31
Z 1 /l-
j /r' Nk 1
IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
7 NB
Buffer Z1 - - - - ----
Only Z2 1,960 ----
(Sanitar
SSewer) TOTAL 1,960
8 NB
Z1

--
Buffer - - - - --
Only Z2 4,935 ----
(Sonito
- TOTAL 4,935
ewer
.(.
IMPACT MAP #8 Proj #
0713
Sierra Drwn By: JC Dwg No
Nichols R
ill
& D
L Chk B : JR 20
eesv
oc
e Date: 11/21/07
Durham, North Carolina
Scale: 1 "= 100' 3 of
t

\ \y

-
\
?

' _
\ 30-PUBLIC SANTARY
' \
r •? SEWER EI.SEMEM` -

%

\
' f I I

1

N IMP_ACT_ % f
:\ F
AREA #8A
i
\ \• \ 30 PUBLIC SANPARY 104k
SEWER EASEMEEII
Ilk-
HP \ _.
\ 1
\' 1
I
\\ \ 5 ?\ EVSEI 501 EFp•'` , 1` (qA,?
• • \\ ,/I / _ , -
v 1\
\ \ \\\ \ , ?\ ?"
I y1t.t ` - IMP
l l t 1 - ?-7v ARE
= I
T , v IaNF .. ??
\
IMPACT MAP #9 Proj #
0713
Sierra Drwn By: JC Dwg No
l
R
Ni
h
D Chk B : JR 21
o
s
c
oc
Leesville & Date: 11/21/07
Durham, North Carolina
1
Scale: 1"-100'

3 of
IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
8 NB Z1
----
Buffer ----
Only Z2 4,935 ----
(Sanit) ry
SSewer TOTAL 4,935
8A WL
Wetlands 2.628
Only
(Sanitary

r
Sewer
\ \ \\\ \\ ?\ SEE SHT'23 SANITARY. SEWERS
\ \ ?? INSTALLED UNDER
FR PROFILE
\ ` • PEREJANIAL
1, w
-\ \ S,R.? , ?• \ • STREAMS WILL Bf
` \' •'' INSTALLED USING
\ PROPOSED P P ' \ \ \ ???V F FF • i' y., `? THE'JACK AND
STATION -
V 1 . sE\RE.hT?B
BORE 111ETHOD TO_
\ \ 1 1 AV0I D ',ST'RE'AM,
PACT ' $-
?? • ? 7?. 30 LIC SAN(1ARY
v . .? . . \ SEWER MENT \.
\ .? = . \ \, • ???? ?? \ ' IMPACT \
5 \
?.I>\ s?• ?\ \t\ oFpVe?"M ^ \ \t AREA, #9A
f 1 \ ' I IMPACT \ ??' \ H `'
\ I AREA #9
I 1 v ? 'tea` eoF \ , t •? L; 1 ?^ / ?,
,
J I
%
??, ???.A l I 1 1 •? t,t, ,1 t
IIr ? \ l 1 , ? \ 1. .
j ? ' ? ? \ 1 ? I ? ? 1 , ? ; • 1 loo Gatti
? ? ? ?\ ? ? ? \, SIRE,

IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
Buffer & NB Z1 1,819 ----
Stream Z2 1,210 ----
Sanitary
ewer)
TOTAL
3,029
9A
Wetlands WL
9.328
(Sanitary
Sewer) •

IMPACT MAP # 10 Proj #
0713
Sierra Drwn By: JC Dwg No
l
R
Ni
h
& D
ill
L Chk B : JR 22
o
s
oc
c
eesv
e
Date:
1 7
Durham, North Carolina Scale: 1"= = 1 1001
00'
3 of

1
1
1
1
1
1
1
1
t
1
1
-- - ----
E y >
a M N Pi
=
u O N N
C'
P M - _
[
Z w
3 E
N?zz

Z
U ?)
r?
?
e

@ 0.20% I 18"0 PVC I 0 48 LF @ 0.20%
18"0 PVC
N
OJT P
Co N NO N
+
C'
P
M ? O
c
Z
DATUA ELEV

0
co
N
0
m
N
0
m
N
o
w
N
o
00
N
c?
P
N
C?
O
M
u?
N
M
o
Cl)
M 28 .00
310
300
290
50 93+00 93+50 94+00 94+50 95+00
SANITARY SEWER PROFILE
22 SCALE 1"=50'

' HORVATH ASSOCIATES, P.A. IMPACT PROFILE Proj #

0713
16 CONSULTANT PLACE, SUITE 201
Sierra Drwn By: JC Dwg No
DURHAM, NORTH CAROLINA 27707
P 919.490.4990 F 919.490.8953 c Nichols R
ill
& D
L Chk B : JR 22
1 eesv
o
e Date: 11/21/07
www.horvathassociates.com Durham, North Carolina Sale: 1"= 50' 3 of

t
1
t

t

t

t

1
t
" rey,J 0
t
%

J
"N l F
_ - -- i I 1
s
-- / f !! IMPACT,
AREA #11
\ 4 n r,-
j'v
\ k t 1 < c f % ( ?, _ n f?
1, 1 1
1- 1
tt 111 v / -4
IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
11 NB
Buffer Z1 749 ----
Only 22 1,912 ----
(Road
Fill)
TOTAL
2,661
-??i
?) ` 11
??
? II lit
l ?.
IMPACT MAP #11 Proj #
0713
Sierra Drwn By: JC Dwg No
Nich
ls R
& D
L
ill Chk B : JR 24
oc
o
eesv
e Date: 1
7
Durham, North Carolina Scale: 1 "= = 1 100'

00'
3 of
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

r

\\
? `?
\ ? ?? \ `?
? 4
L IMPACT
AREA #12
_

oo,
v,

its
v
a
s'r
1
I
. ?l
_rt
-- I
IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
12 NB
Buffer Z1 - - - - ----
Only Z2 250 ----
(Road
Fill) TOTAL 250
IMPACT MAP # 12 Proj #
0713
Sierra Drwn By: JC Dwg No
sville & Doc Nichols R
L Chk B : JR 25
ee Date: 11/21/07
Durham, North Carolina
Scale: 1 "= 100 3ot
WETLAND IMPACT MAPS
I ! <-1 N` \
.01
f'.
".IMPACT AREA W 2
r'
i 1 Ix x \ IE 1iMP CT
f r- t ,, x x,FEk . F " - , -
l 1 ,o 'K(_ . x ta( x
r
/ Y ZONE 2 IMP ? ? -?
B)d • S \
w.,
1.
x x /_-
x x
X1. .
x x S o r
' ? J e
000,

IMPACT TYPE SO. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
Wetlond 18 NB
Buffer & Z1 837
Stream Z2 100 ----
(Channel)
TOTAL 937

WETLAND # 1 B IMPACT MAP Proj #
0713
Sierra Drwn By: MLJ Dwg No
Leesville & Doc Nichols R Chk B : JR 1
Date: 5/1/08
Durham, North Carolina Scale: 1"- 50'
1
1
1
1
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IMPACT TYPE SQ. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
Wetland 7 NB Z1 768
Buffer &

Stream
Z2 490
----
(Channel) TOTAL 1258
a0?
WETLAND # 7 IMPACT MAP -1 "
0713
Sierra Drwn By: MLJ Dwg No
& Doc Nichols R
L
ill Chk B : JR 2
eesv
e Date: 5/1/08
Durham, North Carolina Scale: 1 "- 50'
1
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-------------
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' ; I i ? wv3 ? \t 1
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.IOWA I "'i
SF
IMPACT
NO. TYPE SO. FT.
(CH and WL) LINEAR FT.
CH ONLY
Wetland 8A NB Z1 750
Buffer &
Stream Z2 590 ----
(Channel) TOTAL 1340
Wetland 88 NB

Buffer & Z1 686

Stream
Z2 1060
----
(Channel) TOTAL 1745
\ \ \ \ \ \ ??\ \ line /( r te`
WETLAND # 8A AND 8B IMPACT MAP Proj #
0713
Sierra Drwn By: MLJ Dwg No
Leesville & Doc Nichols R Chk B , JR 3
N Date: 5/1/08
Durham, North Carolina Scale: 1"-100'
1
t
1
1
1
1
1
1
1
t
1
1
1
1
1
1

y x`.x i
'
..?, x
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x x
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i 1 ? f r e f ,- ,? f ?t? ;\ t?r3'? J x x r I? !? .
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m f -? BUFF; 73i SF
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1 i -''IMPACT AREA # 4B
IMPACT TYPE SQ. FT. LINEAR FT.
NO. (CH and WL) CH ONLY
Wetland 9 NB Z1 731
Buffer &
Stream Z2 1052 ----
(Channel) TOTAL 1783
N
WETLAND # 9 IMPACT MAP Proj #
0713
Sierra Drwn By: MLJ Dwg No
Leesville & Doc Nichols R Chk B : JR 4
Date: 5/1/08
Durham, North Carolina Scale: 1°= 50'
i
i
BMP DESIGN CHECKLISTS
permit Number
to be provided by DWO)
Ail&
NtDENR
STORMiWATER MANAGEMENT PERMIT APPLICATION FORM
' 401 CERTIFICATION APPLICATION FORM
VVETL.ND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all the required information.
t. PROJECT INFORMATION
Project name Sierra
Contact name Matt Jones
Phone number [phone]
Date March 18, 2008
Drainage area number TO DB+7
II. DESIGN INFORMATION
Site Characteristics
Drainage area 533,362 ftz
Impervious area 214.751 ftz
Percent impervious 33.9% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak

flow? Y (Y or N)
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity 1 in
0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft3/sec
Post-development 1-yr, 24-hr runoff ft3/sec
Pre/Post 1-yr, 24-hr peak control ft3/sec
Storage Volume: Non-SR Waters
Design volume (temporary pool volume) 18,745 ft3 OK
Depth of temporary pool/ponding depth (DPNa,,ts) 13.56 in Insufficient depth of temp. pool.
Drawdown time 2.94 days OK
Diameter of orifice 2.00 in OK
Coefficient of discharge (CD) used in orifice diameter
0
60
l

calculation .
(unit
ess)
Driving head (Ho) used in the orifice diameter calculation
Storage Volume: SR Waters Parameters 0.558 ft OK
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft 3
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft 3
Volume provided ft 3

1
Form SW401-Wetland-Rev.1 Parts I and 11. Project Design Summary, Page 1 of 3

Surface Areas of Wetiand 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
Shallow Land (top)
Permanent Pool
Shallow Water (top)
Deep Pool (top)
' 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,
Deep pool is 61inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
' This design meets Option #2,
Has a clay liner
If yes:
Depth of topsoil above clay liner
' Topographic Zone Depths
Temporary Pool
Shallow Land
Permanent Pool
Shallow Water
' Deep Pool (shallowest)
Deep Pool (deepest)
Planting Plan
' Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (flinch diameter)
' Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4inch diameter).
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
t
Form SW401-Wetland-Rev.1
?eF;-?-i it ?O'umber
to be provided by DVii,?))
6.588 ft2 Insufficient wetland surface area.
6.628 ft2 OK
40%
7.250 ft2 Insufficient shallow water area.
1.811 ft2 OK
11%
899 ft2 OK
5%
16,588 ft2 OK
0.00 ft2
363.63 fmsl
362.50 fmsl
362.50 fmsl
360.50 fmsl
359.50 fmsl
n (Y or N)
fmsl
Y
4 in
13.56 in Insufficient shallow land depth.
0 in
24 in OK
36 in OK
n (Y or N) OK
498
332
83
510 OK
340 OK
0 Higher density is recommended.
Parts I and II. Project Design Summary, Page 2 of 3

Aftitlonai IiS'Oi''licLiOn
' Can the design volume be contained?
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter?
' What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Are calculations for supporting the design volume provided in the
' application?
Is BMP sized to handle all runoff from ultimate build-out?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
Approximate wetland length
Approximate wetland width
' Approximate surface area using length and width provided
Will the wetland be stabilized within 14 days of construction?

1

1

1

I Form SW401-Wetland-Rev.i
Permit Number
(to be provided by DtNQ)
- - -- (Y or 1\1) OK
I (Y or N) Excess volume must pass through filter.
ft
n (Y or N) Show how flow is evenly distributed.
y (Y or N) OK
y (Y or N) OK
Y (Y or N) OK
1.4 :1 Insufficient length to width ratio.
1510 ft
?11.0 ft
16,983 ft2 This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
y (Y or N) OK
Parts I and II. Project Design Summary, Page 3 of 3

I.At"'A
HCDEHR

Permit r'umber
to be provided by DM/Q)
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 Ill) must be printed, filled out and submitted along with all the required information.
I. PROJECT INFORMATION
' Project name Sierra
Contact name Matt Jones
Phone number (919) 4904990
Date January 31, 2008
Drainage area number TO DB#8A
' II. DESIGN INFORMATION
Site Characteristics
Drainage area 342,382 ft2
Impervious area 182,081 ft2
' Percent impervious 53.2% %
Design rainfall depth 1.0 inch
' Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
1-yr, 24-hr runoff depth 1 in
' 1-yr, 24-hr intensity 0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft3/sec
Post-development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control ft3/sec
ft3/sec
Storage Volume: Non-SR Waters
Design volume (temporary pool volume) 8,232 ft3
Depth of temporary pool/ponding depth (DP,,,,) 13.2 in
Drawdown time 2.99 days
Diameter of orifice 1.25 in
' Coefficient of discharge (C
) used in orifice diameter
D 0.60 (unitless)
calculation
' Driving head (Ho) used in the orifice diameter calculation 0.524 ft
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft 3
' Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft 3
' Volume provided ft3

1 Form SW401-Wetland-Rev.1
OK
Insufficient depth of temp. pool.
OK
OK
OK
Parts I and fl. Project Design Summary, Page 1 of 3

t ?,,, ace AreGs of W'CC"cnd 170,-CG
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
Shallow Land (top)
Permanent Pool
Shallow Water (top)
Deep Pool (top)
' 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,
Deep pool is 6'inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
This design meets Option #2,
Has a clay liner
If yes:
' Depth of topsoil above clay liner
Topographic Zone Depths
Temporary Pool
1 Shallow Land
Permanent Pool
Shallow Water
' Deep Pool (shallowest)
Deep Pool (deepest)
Planting Plan
Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (4inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
' each plant type are recommended):
Herbacious (4inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)

Form SW401-Wetland-Rev.1
ermit wumber
to be provided by CVVO)
-!041 ft2 3K
x.947 ft2 OK
39%
3.197 ftz Insufficient shallow water area.
43%
755 ftz OK
10%
585 ft2 OK
8%
7,484 ft 2 OK
0.00 ft2
348.10 fmsl
347.00 fmsl
347.00 fmsl
345.00 fmsl
344.00 fmsl
n (Y or N)
fmsl
y
4 in
13.2 in Insufficient shallow land depth.
0 in
24 in OK
36 in OK
n (Y or N) OK
228
152
38
240 OK
160 OK
0 Higher density is recommended.
Parts I and II. Project Design Summary, Page 2 of 3

' Permit 14!umber
(to be provided by DWQ)
.?-ddltlonal inforrna".Ion
' Can the design volume be contained? i Y or N) OK
Does volume in excess of the design volume flow evenly (Y or N) Excess volume must pass through filter.
distributed through a vegetated filter?
What is the length of the vegetated filter? ft
' Does the design use a level spreader to evenly distribute flow? I (Y or N) Show how flow is evenly distributed.
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: 1.9 :1 OK
Approximate wetland length 171.0 ft
Approximate wetland width 88.0 ft
'
Approximate surface area using length and width provided
15,048 ftz approx. surface area is within this number of square
This
feet of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction? Y (Y or N) OK

1

Form SW401-Wetland-Rev.1 Parts I and 11. Project Design Summary, Page 3 of 3
Permit i !umber
(to be provided by DWQ)
NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM
' 401 CERTIFICATION APPLICATION FORM
'NETLAND S'UPPLEMENT
t This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all the required information.
I. PROJECT INFORMATION
Project name Sierra
Contact name Matt Jones
(919) 4904990
Phone number
Date March 18, 2008
Drainage area number 0 DB#8B
' II. DESIGN INFORMATION
Site Characteristics
Drainage area 378.101 ft2
' Impervious area 182,081 ft2
Percent impervious 48.2% %
Design rainfall depth 1.0 inch
' Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
' 1-yr, 24-hr runoff depth 1 in
1-yr, 24-hr intensity 0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft3/sec
Post-development 1-yr, 24-hr runoff ft3/sec
Pre/Post 1-yr, 24-hr peak control ft 3lsec
Storage Volume: Non-SR Waters
' Design volume (temporary pool volume) 7,457 ft3 OK

' Depth of temporary pool/ponding depth (DPiantJ
Drawdown time 13.44 in
2.78 days Insufficient depth of temp. pool.
OK
Diameter of orifice 1.25 in OK
' t
if
di
d i
ame
er
n or
ice
Coefficient of discharge (Co) use
0.60 (unitless)
calculation
' Driving head (Ho) used in the orifice diameter calculation 0.574 ft OK
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth in
' Pre-development 1-yr, 24-hr runoff ft3
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft3
' Volume provided ft 3

Form SW401-Wetland-Rev.1 Parts I and II. Project Design Summary, Page 1 of 3
1
' Surl,ace ^^.iEeS Y'Afe`.iand Zcnias
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
' Shallow Land (top)
Permanent Pool
Shallow Water (top)
' Deep Pool (top)
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,
Deep pool is 6`inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
This design meets Option #2,
Has a clay liner
If yes:
' Depth of topsoil above clay liner
Topographic Zone Depths
' Temporary Pool
Shallow Land
Permanent Pool
' Shallow Water
Deep Pool (shallowest)
Deep Pool (deepest)
' Planting Plan
Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (flinch diameter)
' Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4inch diameter)
Shrubs/small trees (1 gallon or larger)
' Trees (1.5" dbh)

Form SW401-Wetland-Rev.1
Permit Jumber
to be provided by DWC?)
1.658 ft2 Insufficient wetland surface area.
2,635 ft2 OK
40%
2,680 ft2 OK
40%
962 ft2 OK
14%
381 ft2 OK
6%
6,658 ft2 OK
0.00 ft2
335.12 fmsl
334.00 fmsl
334.00 fmsl
331.00 fmsl
331.00 fmsl
n (Y or N)
fmsl
y
4 in
13.44 in Insufficient shallow land depth.
0 in
36 in OK
36 in OK
n (Y or N) OK
204
136
34
230 OK
140 OK
0 Higher density is recommended.
Parts I and II. Project Design Summary, Page 2 of 3

AdGitir!?&I Ir;,cGf'f?1ci:lon
Can the design volume be contained?
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Are calculations for supporting the design volume provided in the
' application?
Is BMP sized to handle all runoff from ultimate build-out?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
Approximate wetland length
Approximate wetland width
Approximate surface area using length and width provided
Will the wetland be stabilized within 14 days of construction?

1

1

1
Form SW401-Wetland-Rev.1
-'ermit,'umber
to be provided by DMIC)
(Y or !) OK
n (Y or hl) Excess volume must pass through filter.
ft
n (Y or N) Show how flow is evenly distributed.
y (Y or N) OK
y (Y or N) OK
Y (Y or N) OK
3.2 :1 OK
196.0 ft
61.0 ft
11.956 ft2 This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
Y (Y or N) OK
Parts I and 11. Project Design Summary, Page 3 of 3

ENR
NC

?ermtt (,!umber
,to be provided by DV?O)
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 lll) must be printed, filled out and submitted along with all the required information.

I. PROJECT INFORMATION
Project name Sierra
Contact name Matt Jones
Phone number [phone]
Date January 31, 2008
Drainage area number TO DBr9
II. DESIGN INFORMATION
Site Characteristics
Drainage area 208,217 ftz
Impervious area 93,654 ftz
' Percent impervious 45.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
1-yr, 24-hr runoff depth 1 in
' 1-yr, 24-hr intensity 0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft3/sec
Post-development 1-yr, 24-hr runoff ft3/sec
Pre/Post 1-yr, 24-hr peak control ft 3/sec
Storage Volume: Non-SR Waters
Design volume (temporary pool volume) 7,892 ft3
Depth of temporary pool/ponding depth (DPI...) 12.72 in
' Drawdown time 2.95 days
Diameter of orifice 1.25 in
Coefficient of discharge (CD) used in orifice diameter
0
60

calculation .
(unitless)

' Driving head (Ho) used in the orifice diameter calculation 0.524 ft
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft3
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft 3
Volume provided ft3

Form SW401-Wetland-Rev.1
OK
Insufficient depth of temp. pool.
OK
OK
OK
Parts I and Il. Project Design Summary, Page 1 of 3
'ermit "Unbei
to be orovided by EVVQ)
, i{ `c e r.ra of 4 `a 0, e£
Surface Area of Entire Wetland
-.445 ft2
insufficient wetland surface area.
Shallow Land 2.893 ft2 OK
The shallow land percentage is: 39%
' Shallow Water 3.145 ftz Insufficient shallow water area.
The shallow water percentage is: 42%
Deep Pool
Forebay portion of deep pool (pretreatment) 1,022 ftz OK
' The forebay surface area percentage is: 14%
Non-forebay portion of deep pool 385 ftz OK
The non-forebay deep pool surface area percentage is: 5%
Total of wetland zone areas 7,445 ft2 OK
Add or subtract the following area from the zones 0.00 ft2
' Topographic Zone Elevations
Temporary Pool
Shallow Land (top) 357.06 fmsl
Permanent Pool
Shallow Water (top) 356.00 fmsi
Deep Pool (top) 356.00 fmsl
Most shallow point of deep pool's bottom 354.00 fmsl
' Deepest point of deep pool's bottom 353.00 fmsl
Design must meet one of the following two options:
This design meets Option #1,

Deep pool is 6'inches below SLWT, If yes: n (Y or N)
SLWT (Seasonally Low Water Table) fmsi
' This design meets Option 02,
Has a clay liner
y
If yes:
Depth of topsoil above clay liner 4 in
Topographic Zone Depths
Temporary Pool
Shallow Land 12.72 in Insufficient shallow land depth.
Permanent Pool
Shallow Water 0 in
Deep Pool (shallowest) 24 in OK
Deep Pool (deepest) 36 in OK
Planting Plan
Are cattails included in the planting plan? n (Y or N) OK
Number of Plants in planting plan recommended:
Herbacious (flinch diameter) 228
Shrubs/small trees (1 gallon or larger) 152
Trees (1.5" dbh) 38
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4inch diameter)
230
OK
Shrubs/small trees (1 gallon or larger) 160 OK
Trees (1.5" dbh) 0 Higher density is recommended.

1
Form SW401-Wetland-Rev.1 Parts I and IL Project Design Summary, Page 2 of 3

r•,clciticnai forliF; ticr?
Can the design volume be contained?
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter?
' What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Are calculations for supporting the design volume provided in the
' application?
Is BMP sized to handle all runoff from ultimate build-out?
Is the BMP located in a recorded drainage easement with a
' recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
Approximate wetland length
Approximate wetland width
' Approximate surface area using length and width provided
Will the wetland be stabilized within 14 days of construction?

1

1

I
Form SW401-Wetland-Rev.1
(Y or N)
(Y or N)
ft
(Y or N)
Y (Y or N)
Y (Y or N)
y (Y or N)
3.5 :1
172.0 ft
49.0 ft
8,428 ft2
y (Y or N)
-ermit 'umber-
to be provided ay DVVQ)
OK
Excess volume must pass through filter.
Show how flow is evenly distributed.
OK
OK
OK
OK
This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
OK
Parts I and II. Project Design Summary, Page 3 of 3

1 ellumber
io be Provided by DWG?)
ilk
1 .rsi?6
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
' 401 CERTIFICATION APPLICATION FORM
NETLAND SUPPLEMENT
' This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all the required information.
1 I. PROJECT INFORMATION
Project name Sierra
Contact name John Schrum
Phone number [phone]
' Date March 13, 2008
Drainage area number 1
Ill. DESIGN INFORMATION
Site Characteristics
Drainage area 471.755 ftz
Impervious area 257,875 ftZ
' Percent impervious 54.7% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
' Does this project require pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity 1 in
0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft3/sec
Post-development 1-yr, 24-hr runoff 0.96 ft3/sec
Pre/Post 1-yr, 24-hr peak control 1.0 ft3/sec
Storage Volume: Non-SR Waters
1 Design volume (temporary pool volume) 22,602 ft3 OK
Depth of temporary pool/ponding depth (DP,an,,) 15.96 in Insufficient depth of temp. pool.
' Drawdown time 2.99 days OK
Diameter of orifice 2.00 in OK
' Coefficient of discharge (Co) used in orifice diameter
0
60
itl

calculation .
(un
ess)
Driving head (Ho) used in the orifice diameter calculation
Storage Volume: SR Waters Parameters 0.658 ft OK
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft3
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft3
Volume provided ft 3

1 Form SW401-Wetland-Rev.1 Parts I and II. Project Design Summary, Page 1 of 3
1
Surface Areas ''
ofetland Zanee
Surface Area of Entire VVetland
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
Shallow Land (top)
' Permanent Pool
Shallow Water (top)
Deep Pool (top)
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,
Deep pool is 6`inches below SLWT, If yes:
SLWT (Seasonally Low Water Table)
' This design meets Option #2,
Has a clay liner
If yes:
' Depth of topsoil above clay liner
Topographic Zone Depths
Temporary Pool
Shallow Land
Permanent Pool
Shallow Water
Deep Pool (shallowest)
Deep Pool (deepest)
Planting Plan
' Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (4inch diameter)
' Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
each plant type are recommended):
Herbacious (4inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
1
I Form SW401 -Wetland-Rev. 1
rermii ?Iumbei
fo be oroosded by DWOJ
_ 4.566 {;z insufficient wetland surface area.
2.845 ft2 Insufficient shallow land area.
19%
8.774 ft2 Insufficient shallow water area.
60%
1.510 ft2 OK
10%
1.537 ft2 Insufficient non-forebay deep pool area.
10%
14,666 ft2 OK
0.00 ft2
388.00 fmsl
388.00 fmsl
388.00 fmsl
385.00 fmsl
385.00 fmsl
n (Y or N)
fmsl
Y
4 in
15.96 in Insufficient shallow land depth.
0 in
36 in OK
36 in OK
n (Y or N) OK
444
296
74
450 OK
310 OK
0 Higher density is recommended.
Parts I and It. Project Design Summary, Page 2 of 3

hvC11ftnzi IliLO"^l Gt,i '?.
Can the design volume be contained!
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter?
' What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Are calculations for supporting the design volume provided in the
application?
Is BMP sized to handle all runoff from ultimate build-out?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
Approximate wetland length
Approximate wetland width
Approximate surface area using length and width provided
Will the wetland be stabilized within 14 days of construction?

1
1 Form SW401-Wetland-Rev.1
(Yori!)
(Y or N)
ft
n (Y or N)
y (Y or N)
y (Y or N)
y (Y or N)
2.0 :1
195.0 ft
96.0 ft
18,720 ft 2
J (Y or N)
rermif Dumber
io be provided by D11VQ)
OK
Excess volume must pass through filter.
Show how flow is evenly distributed.
OK
OK
OK
OK
This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
OK
Parts I and II. Project Design Summary, Page 3 of 3

NCDENR

-;,r'it ?dUmbcr
Ito be orooded by DA/0)
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.

I. PROJECT INFORMATION
' Project name Sierra
Contact name John Schrum
Phone number [phone]
' Date March 20. 2008
Drainage area number 2
II. DESIGN INFORMATION
Site Characteristics
Drainage area 413.820 ftz
Impervious area 165.528 ftz
'
Percent impervious 40.0% %
Design rainfall depth 1.0 inch
' Peak Flow Calculations
Does this project require
pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
1-yr, 24-hr runoff depth 1 in
' 1-yr, 24-hr intensity 0.042 in/hr
Pre-development 1-yr, 24-hr runoff ft 3/sec
Post-development 1-yr, 24-hr runoff 0.94 ft 3/sec
' Pre/Post 1-yr, 24-hr peak control 0.9 ft3/sec
Storage Volume: Non•SR Waters
' Design volume (temporary pool volume) 15,209 ft 3
Depth of temporary pool/ponding depth (DPianN) 12.48 in
' Drawdown time 3.88 days
Diameter of orifice 1.50 in
' Coefficient of discharge (CD) used in orifice diameter
0.60 (unitless)
calculation
' Driving head (Ho) used in the orifice diameter calculation 0.519 ft
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft3
' Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft3
Volume provided ft3

1 Form SW401-Wetland-Rev.1
OK
Insufficient depth of temp. pool.
OK
OK
OK
Parts I and II. Project Design Summary, Page 1 of 3
Permit Number
io be provided by DO/Q)
A 1 L EAV31
I
NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM
' 401 CERTIFICATION APPLICATION FORM
`NETLAND 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.
I. PROJECT INFORMATION
Project name Sierra
Contact name John Schrum
Phone number 7919) 490-4990
' Date March 20, 2008
Drainage area number 2B
' II. DESIGN INFORMATION
Site Characteristics
Drainage area 636.412 ft2
Impervious area 254.826 ft2
Percent impervious 40.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Does this project require pre/post control of the 1-yr 24-hr peak Y (Y or N)
flow?
1-yr, 24-hr runoff depth 1 in
' 1-yr, 24-hr intensity 0.042 -in /hr
Pre-development 1-yr, 24-hr runoff ft /sec
Post-development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control 1.27 ft3/sec
1.3 ft3/sec
Storage Volume: Non-SR Waters
' Design volume (temporary pool volume) 22,944 ft3 OK
Depth of temporary poollponding depth (Dnwts) 14.88 in Insufficient depth of temp. pool.
Drawdown time 3.21 days OK
Diameter of orifice 2.00 in OK
) used in orifice diameter
f di
h
ff
i
t
C
(C
arge
en
o
sc
oe
ic
D 0.60 (unitless)
calculation
Driving head (Ho) used in the orifice diameter calculation 0.608 ft OK
Storage Volume: SR Waters Parameters
1-yr, 24-hr depth in
Pre-development 1-yr, 24-hr runoff ft 3
' Post-development 1-yr, 24-hr runoff ft3
Minimum volume required ft3
Volume provided ft3

Form SW401 -Wetland-Rev. 1 Parts I and II. Project Design Summary, Page 1 of 3

S ace.~..eas of wet':and Zcras
' 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
Shallow Land (top)
Permanent Pool
Shallow Water (top)
Deep Pool (top)
' 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,
Deep pool is Cinches below Si If yes:
SLWT (Seasonally Low Water Table)
' This design meets Option #2,
Has a clay liner
If yes:
' Depth of topsoil above clay liner
Topographic Zone Depths
Temporary Pool
Shallow Land
Permanent Pool
Shallow Water
Deep Pool (shallowest)
Deep Pool (deepest)
Planting Plan .
Are cattails included in the planting plan?
Number of Plants in planting plan recommended:
Herbacious (4inch diameter)
' Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)
Number of Plants in planting plan provided (several species of
' each plant type are recommended):
Herbacious (4inch diameter)
Shrubs/small trees (1 gallon or larger)
Trees (1.5" dbh)

Forth SW401-Wetland-Rev.1
r en?llj i`?LII°IJEf
to be provided by DVI/0)
3.857 ft2 Insufficient wetland surface area.
3.057 ft2 Insufficient shallow land area.
22%
8,286 ft2 Insufficient shallow water area.
1-
1,269 ft2 Insufficient forebay area.
9%
1.245 ft2 OK
9%
13,857 ft 2 OK
0.00 ft2
358.00 fmsl
358.00 fmsl
358.00 fmsl
355.00 fmsl
355.00 fmsl
n (Y or N)
fmsl
y
4 in
12.48 in Insufficient shallow land depth.
0 in
36 in OK
36 in OK
n (Y or N) OK
420
280
70
420 OK
290 OK
0 Higher density is recommended.
Parts I and II. Project Design Summary, Page 2 of 3

(`.: GiiICI"vii h`•Or;licCfO('1 Can the design volume be contained?
Does volume in excess of the design volume flow evenly
distributed through a vegetated filter?
1 What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Are calculations for supporting the design volume provided in the
' application?
Is BMP sized to handle all runoff from ultimate build-out?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
1 The length to width ratio is:
Approximate wetland length
Approximate wetland width
' Approximate surface area using length and width provided
Will the wetland be stabilized within 14 days of construction?

1
Form SW401-Wetland-Rev.1
_(Y or N)
(Y or N)
ft
n (Y or N)
Y (Y or N)
Y (Y or N)
y (Y or N)
2.4 :1
229.0 ft
95.0 ft
21,755 ft z
v (Y or N)
?. nPL ! ?' ui- ,DE,
to be orovided by DWCI)
OK
Excess volume must pass through filter.
Show how flow is evenly distributed.
OK
OK
OK
OK
This approx. surface area is within this number of square
feet of the entire wetland surface area reported above:
OK
Parts I and II. Project Design Summary, Page 3 of 3
1
1
1
DETAILED IMPERVIOUS
AREA CALCULATIONS
0713 OVERALL IMPERVIOUS CALCULATIONS.xlsx Matt Jones, El
Overall Impervious 5/5/2008

1
i
1
1
1
1
1
1
i
1
1
1
Impervious Area Calculations (Full Build)
Wetland ID Equivalent # of
Lots Impervious
Per Lot
sf Impervious
From Lots
sf Road/Sidewalk
Impervious Area
sf Total Impervious

sf acres
Wetland # 1 42 2800 117600 71615 189215 4.34
Wetland # 2 27 2400 64800 161790 226590 5.20
Wetland # 2B 66 2400 158400 122316 280716 6.44
Wetland # 2C 45 2400 108000 48682 156682 3.60
Wetland # 3 32 3200 102400 65244 167644 3.85
Wetland # 5 35 3200 112000 84361 196361 4.51
Wetland # 6 41 1200 49200 40864 90064 2.07
Wetland # 7 21 2800 58800 117914 176714 4.06
37 1200 44400 57280 135280 3
11
Wetland # 7B 12 2800 33600 .
Wetland # 8A 23 1200 27600 149732 177332 4.07
Wetland # 9 29 1200 34800 58591 93391 2.14
Total 410 911600 1889989 43.39
* Equivalent number of lots were based on approximately how many lots will contribute to the drainage
area. If it appeared that two lots would both contribute half their impervious surface to the drainage
area, that was considered one equivalent lot. Impervious area per lot was taken from the approved site
plan. Road/Sidewalk Impervious area was measured in AutoCAD.

1
t

I CHANNEL DESIGN INFORMATION
t
1
1
1
1
1
1
t
1
1
1
1
1
1
1

1
1
0713 Channel Analysis.xls
Cross Section
Channel Cross Section

T
?a?

Channel ID A
(ft) B
(ft) C
(ft) Channel Liner
DB # 1B OUT 2 3 1 Class II Riprap
DB # 7 IN 2 2 2 Class II Riprap
DB # 7 OUT 3 0 1 Concrete
DB # 8A OUT 3 0 1 Concrete
DB # 8B OUT 2 2 1 Class I Riprap
DB # 9 OUT 3 0 1 Concrete
Matt .Tones, El
x/2/2008
M Ml M M M r r Ml M M= Ml M IM M IM M M M
0713 Channel Analysis.xls
DB#1B Channel Out
Given:
Q10= 25.24 cfs
Min. Channel Slope, s = 0.11 ft/ft
Max. Channel Slope, s = 0.11 ft/ft
Design Side Slope, M = 2 :1 (H:V)
Channel Bottom Width, B = 3.0 ft

Line Channel with Class II Rip Rap
Manning's 'n' value = 0.040
Determine Channel Maximum Depth and Minimum Velocity (Min. Slope):

Qn/(1.49s")
Assumed'y'
Area, A Wetted
Perimeter, P
AR23
[ft] [sq. ff] [ft]
2.0430 0.718 3.2 6.2 2.0430
Resulting depth = 0.72 ft
Resulting velocity = 7.92 ft/sec
Resulting Shear Stress = 4.93 Ib/ft2
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):
-Wetted
Qn/(1.49s'7) Assumed 'y' Area, A Perimeter, P AR 2/3
[ft] [sq. ft] [ft]
2.0430 0.781 3.6 8.2 2.0430

Resulting depth = 0.78 ft
Resulting velocity = 7.08 ft/sec
Resulting Shear Stress = 5.36 Ib/tt"
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 Ib/sgft 0.022
Straw w/net 1.45 Ib/sgft 0.033
Curled Wood mat 1.55 Ib/sgft 0.035
Synthetic Mat 2.00 Ib/sgft 0.025
Class A Rip Rap 2.00 Ib/sgft 0.033
Class B Rip Rap 4.00 Ib/sgft 0.041
Class I Rip Rap (2'min) 5.00 Ib/sgft 0.035
Class II Rip Rap (2'min) 6.00 Ib/sgft 0.040
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Summary
Maximum Channel Depth= 0.78 ff
Maximum Channel Velocity= 7.92 ff/s
Maximum Channel Shear Stress= 5.36 lb/ft'
Line Channel with Class II RipRap
Make Channel a Minimum of 1.00 feet deep
s= = M M M M M M r r M M M M r r M M
0713 Channel Analysis.xls
1313#7 Channel In
Given:
Qlo= 40.65 cfs
Min. Channel Slope, s = 0.013 ft/ft
Max. Channel Slope, s = 0.05 ft/ft
Design Side Slope, M = 2 :1 (H:V)
Channel Bottom Width, B = 2.0 ft
Line Channel with Class II Rip Rap
Manning's 'n' value = 0.040
Determine Channel Maximum Depth and Mi nimum Velocity (Min. Slope):

Qn/(1.49s"2)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 2/3
[ft] [sq. ft] [ft]
9.5711 1.757 9.7 9.9 9.5711
Resulting depth = 1.76 ft
Resulting velocity = 4.20 ft/sec
Resulting Shear Stress = 1.42 Ib/ft2
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):

Qn/(1.49s"2)
Assumed 'y'
Area, A WOO
Perimeter, P
AR2i3
[ft] [sq. ft] [ft]
4.9299 1.934 11.4 39.7 4.9299

Resulting depth = 1.93 ft
Resulting velocity = 3.58 ft/sec
Resulting Shear Stress = 5.91 ib/tt"
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 lb/sqft 0.022
Straw w/net 1.45 lb/sqft 0.033
Curled Wood mat 1.55 lb/sqft 0.035
Synthetic Mat 2.00 lb/sqft 0.025
Class A Rip Rap 2.00 lb/sqft 0.033
Class B Rip Rap
Class I Rip Rap (2'min)
Class 11 Rip Rap (2'min)
4.00 lb/sqft 0.041
5.00 lb/sqft 0.035
6.00 lb/sqft 0.040
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Summary
Maximum Channel Depth= 1.93 ft
Maximum Channel Velocity= 4.20 ft/s
Maximum Channel Shear Stress= 5.91 ib/ftz
Line Channel with Class 11 RipRap
Make Channel a Minimum of 2.00 feet deep
M M M = M.M M M M W = M IMIM Uldlm l= r
0713 Channel Analysis.xls
D13#7 Channel Out
Given:
Q10= 62.96 cfs
Min. Channel Slope, s = 0.13 ft/ft
Max. Channel Slope, s = 0.66 ft/ft .
Design Side Slope, M = 3 :1 (H:V)
Channel Bottom Width, B = 0.0 ft
Line Channel Concrete
Manning's 'n' value = 0.013
Determine Channel Maximum Depth and Minimum Velocity (Min. Slope):

Qn/(1.49s'2)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 213
[ft] [sq. ft] [ft]
1.5235 0.935 2.6 5.9 1.5235
Resulting depth = 0.93 ft
Resulting velocity = 24.03 ft/sec
Resulting Shear Stress = 7.58 Ib/ft2
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):

Qn/(1.49s12)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 2/3
[ft] [sq. ft] [ft]
0.6762 0.669 1.3 3.8 0.6762

Resulting depth =
Resulting velocity =
Resulting Shear Stress = 0.67
46.92
27.54 ft
ft/sec
Ib/tt-
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 Ib/sgft 0.022
Straw w/net 1.45 Ib/sgft 0.033
Curled Wood mat 1.55 Ib/sgft 0.035
Synthetic Mat 2.00 Ib/sgft 0.025
Class A Rip Rap 2.00 Ib/sgft 0.033
Class B Rip Rap 4.00 Ib/sgft 0.041
Class I Rip Rap (2'min) 5.00 Ib/sgft 0.035
Class 11 Rip Rap (2'min) 6.00 Ib/sgft 0.040
Concrete
Non-Erodible 0.013
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Summary
Maximum Channel Depth= 0.93 ft
Maximum Channel Velocity= 46.92 ft/s
Maximum Channel Shear Stress= 27.54 Ib/tt`
Line Channel with Class Concrete
Make Channel 1.00 Foot Deep
M M M M M M M M M r it Ml M IM W M M M M
0713 Channel Analysis.xls
DB#8A Channel Out
Given:
Q10= 30.92 cfs
Min. Channel Slope, s = 0.13 ft/ft
Max. Channel Slope, s = 0.40 ft/ft
Design Side Slope, M = 3 :1 (H:V)
Channel Bottom Width, B = 0.0 ft
Line Channel Concrete
Manning's 'n' value = 0.013
Determine Channel Maximum Depth and Minimum Velocity (Min. Slope)

Qn/(1.49s")
Assumed'y'
Area, A Wetted
Perimeter, P
AR23
[ft] [sq. ft] [ft]
0.7482 0.716 1.5 4.5 0.7482
Resulting depth = 0.72 ft
Resulting velocity = 20.11 ft/sec
Resulting Shear Stress = 5.81 Ib/ft2
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):

Qn/(1.49s'2)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 2/3
[ft] [sq. ft] [(t]
0.4265 0.506 0.8 1.9 0.4265

Resulting depth =
Resulting velocity =
Resulting Shear Stress = 0.51
40.26
12.63 ft
ft/sec
Ib/tt'
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 Ib/sgft 0.022
Straw w/net 1.45 Ib/sgft 0.033
Curled Wood mat 1.55 Ib/sgft 0.035
Synthetic Mat 2.00 Ib/sgft 0.025
Class A Rip Rap 2.00 Ib/sgft 0.033
Class B Rip Rap 4.00 Ib/sgft 0.041
Class I Rip Rap (2'min) 5.00 Ib/sgft 0.035
Class II Rip Rap (2'min) 6.00 Ib/sgft 0.040
to
Non-Erodible 0.013
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Summary
Maximum Channel Depth= 0.72 ft
Maximum Channel Velocity= 40.26 ft/s
Maximum Channel Shear Stress= 12.63 Ib/tt°
Line Channel with Class Concrete
Make Channel 1.00 Foot Deep
M M IM M M M M M=1 r r= r M Ml M M Ml Ml
0713 Channel Analysis.xls
DB48B Channel Out
Given:
Qto= 17.82 cfs
Min. Channel Slope, s = 0.11 ft/ft
Max. Channel Slope, s = 0.04 ft/ft
Design Side Slope, M = 2 :1 (H:V)
Channel Bottom Width, B = 2.0 ft
Line Channel with Class I Rip Rap
Manning's 'n' value = 0.035
Determine Channel Maximum Depth and Mi nimum Velocity (Min. Slope):

Qn/(1.49s'"2)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 213
[it] [sq. ft] [it]
1.2621 0.657 2.2 4.9 1.2621
Resulting depth = 0.66 ft
Resulting velocity = 8.18 ff/sec
Resulting Shear Stress = 4.51 Ib/ftz
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):

Qn/(1.49s'2)
Assumed 'y'
Area, A e e
Perimeter, P
AR 2/3
[ff] [sq. ft] [ft]
2.0930 0.864 3.2 6.1 2.0930

Resulting depth = 0.86 ft
Resulting velocity = 5.54 ft/sec
Resulting Shear Stress = 2.16 IbIff-
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 Ib/sgft 0.022
Straw w/net 1.45 Ib/sgft 0.033
Curled Wood mat 1.55 Ib/sgft 0.035
Synthetic Mat 2.00 Ib/sgft 0.025
Class A Rip Rap 2.00 Ib/sgft 0.033
Class B Rip Rap 4.00 Ib/sgft 0.041
Class I Rip Rap (2'min) 5.00 Ib/sgft 0.035
Class II Rip Rap (2'min) 6.00 Ib/sgft 0.040
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Summary
Maximum Channel Depth= 0.86 ff
Maximum Channel Velocity= 8.18 ff/s
Maximum Channel Shear Stress= 4.51 Ib/ft2
Line Channel with Class 1 RipRap
Make Channel a Minimum of 1.00 feet deep
M i r IM M M M Ml M r r r M M IM M Ml M M
0713 Channel Analysis.xls
DB#9 Channel Out
Given:
Q10- 25.12 cfs
Min. Channel Slope, s = 0.25 ft/ft
Max. Channel Slope, s = 0.36 ft/ft
Design Side Slope, M = 3 :1 (H:V)
Channel Bottom Width, B = 0.0 ft
Line Channel Concrete
Manning's 'n' value = 0.013
Determine Channel Maximum Depth and Minimum Velocity (Min. Slope):

Qn/(1.49s")
Assumed 'y'
Area, A Wetted
Perimeter, P
AR2i3
[ft] [sq. ff] [ff]
0.4383 0.586 1.0 3.7 0.4383
Resulting depth = 0.59 ft
Resulting velocity = 24.40 ft/sec
Resulting Shear Stress = 9.14 Ib/ft2
Determine Channel Minimum Depth and Maximum Velocity (Min. Slope):

Qn/(1.49s"2)
Assumed 'y'
Area, A Wetted
Perimeter, P
AR 2/3
[ft] [sq. ft] [ft]
0.3653 0.449 0.6 1.3 0.3653

Resulting depth = 0.45 ft
Resulting velocity = 41.53 ft/sec
Resulting Shear Stress = 10.09 it)/"-
Matt Jones
5/2/2008
Channel Liner
Based on Permissible Shear Stresses:
Section 8.05.12 of the NCDEHNR Erosion Control Manuel
Permissable Shear Stresses for Liners:
Lining Type Friction n;
Jute Net 0.45 Ib/sgft 0.022
Straw w/net 1.45 Ib/sgft 0.033
Curled Wood mat 1.55 Ib/sgft 0.035
Synthetic Mat 2.00 Ib/sgft 0.025
Class A Rip Rap 2.00 Ib/sgft 0.033
Class B Rip Rap 4.00 Ib/sgft 0.041
Class I Rip Rap (2'min) 5.00 Ib/sgft 0.035
Class II Rip Rap (2'min) 6.00 Ib/sgft 0.040
Concrete
Non-Erodible 0.013
To Determine Channel Shear Stress:
T=yds
where T = shear stress in lb/ft squared
y = unit weight of water, 62.4 Ib/cuft
d = flow depth in feet
s = channel gradient in ft/ft
Maximum Channel Depth= 0.59 ft
Maximum Channel Velocity= 41.53 ff/s
Maximum Channel Shear Stress= 10.09 lb/tt-
Line Channel with Class Concrete
Make Channel 1.00 Foot Deep
1

1

I CULVERT DESIGN INFORMATION
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M M M M M M M M M M M M M M M r r M M
0713 Culvert Design.xls
Culvert Design Summary
Athena Culvert
60" RCP with 1' burv. modeled as user defined shar)e
5/6/2008
Matt Jones
Return Period Q Inlet Elevation Outlet Elevation Length Slope HW TW Elevation HW Culvert
(years) (cfs) (feet) (feet) (feet) (%) Elevation (feet) (feet) Height (D) HW/D
feet feet
10 70.73 363.00 362.20 80 1.00 366.63 364.62 3.63 4 0.91
100 120.32 363.00 362.20 80 1.00 368.12 365.24 5.12 4 1.28
Koaa tievaTion 391.9/ teet
Note: Athena Culvert drains less than 100 acres, so design is HW/D <_ 1 for the 10-year storm
Atlas Culvert
Right = 8.0'x 8.0' box with 1' bury, modeled as 7.0'H x 8.0'W box
Left = 8.0 'x 8.0' box, no bury
Return Period Q culvert Inlet Elevation Outlet Elevation Length Slope HW TW Elevation HW Culvert
(years) (cfs) (feet) (feet) (feet) (%) Elevation (feet) (feet) Height (D) HW/D
feet feet
10 680.21 326.52 326.39 88 0.15 333.18 331.21 6.66 8 0.83
25 846.25 326.52 326.39 88 0.15 334.18 331.78 7.66 8 0.96
100 1107.98 326.52 326.39 88 0.15 335.75 332.56 9.23 8 1.15
Koaa tlevaTion 358.43
Note: Atlas Culvert drains more than 100 acres, so design is HW/D < 1 for the 25-year storm
Note: Invert elevations refer to top of bury. For installation inverts, subtract the bury depth where noted.
r r ?Ilr ?? r r r r r r a.l¦? r r? ?r r r r r
<<' PROPOSED HEADWALL `<
t<
60"0 RCP WITH INVERT
`' < < < < BURIED 1' TO ALLOW FOR
L-
` AQUATIC LIFE PASSAGE.
' < < <
EXISTING GROUND ` L < ` <
NCDOT CLASS ' 1' RIPRAP
32'L X 17W X 24" THICK
ATHENA CULVERT CROSS SECTION
m m m m m m m m m m m m m m m m r r m
%r4 4 114
k << t < 4( °t < 7 i c r K < < L
4 4 <
4 4 4 < 4 4 4 a -, < 5 i
i
' < < a 1 <L. G r ( < `? 5 k < 4 L 8' X 8' BOX'CULVERT r c.
I
8'`X8' POX CULVERT MA
c aI ` il, L ` <
G < INVERT BURIED 1' TO ALLOYV? { < < ( `
<' <
c c
` `FOR AoUATgC LIFE PASSAQE.
4 < 14
?? < r EXISTING GROUND
INVERT= 325.39 I'1 INVERT = 326.39
NCDOT CLASS ' 1' RIPRAP
45.1' L X 30' W X 24" THICK
0713 Velocity Culvert Dissipator Design.xls John E. Schrum, P.E.
Athena Culvert 5/6/2008
Velocity Dissipator Calculations w/ PIPES.EXE
NRCD Land Quality Section - Pipe Design
Entering the following values will provide you with the expected outlet
velocity and depth of flow in a pipe, assuming the Mannings roughness
10-Year Outflow, Q (cfs) = 70.73 Flow Depth (ft.) 1.98
Slope, S (%) = 1.00 Velocity, V (ft/s) 11.40
Pipe Dia., D (in.) = 48
Manning's n Value = 0.013
NRCD Land Quality Section
NYDOT Dissipator Design Results
Pipe Dia., Do (ft.) = 4.00
Outlet Velocity, V,, (fps) = 11.40
Apron Length, LA (ft.) = 32.0 ZONE 3
Average Dia. Stone Thickness
(inches) Class (inches)
4 A 12
8 B 18
>> 10 1 24 <<
' 14 2 36
' Width,W = 0.4*LA + Do Thickness = 1.5 * DMAX
Width, W = 16.8 ft.
' SAY: 17.0 ft.
FINAL DIMENSIONS:
Length, L (ft.) = 32.0
Width, W (ft.) = 17.0
Depth, D (in.) = 24 (NCDENR Erosion & Sed. Cont. Manual §8.06.6)
Stone Class = 1 (NCDOT Std. §1042)
*Cells in red denote required inputs from PIPES.exe outputs
' ** Use 0.4*L A +D 0 when TW/D > 0.5
number is constant over the entire length of the pipe.
1
0713 Velocity Culvert Dissipator Design.xls
Atlas Culvert
Velocity Dissipator Calculations w/ PIPES.EXE
' NRCD Land Quality Section - Pipe Design
Entering the following values will provide you with the expected outlet
velocity and depth of flow in a pipe, assuming the Mannings roughness
number is constant over the entire length of the pipe.
10-Year Outflow, Q (cfs) = 680.21
' Slope, S (%) = 0.13
Pipe Dia., D (in.) = 135.3
Manning's n Value = 0.013

John E. Schrum, P.E.
5/6/2008
Flow Depth (ft.) 6.48
Velocity, V (ft/s) 8.82
NRCD Land Quality Section
NYDOT Dissipator Design Results
Pipe Dia., Do (ft.) = 11.28
Outlet Velocity, Vo (fps) = 8.82
Apron Length, LA (ft.) = 45.1 ZONE 4
Average Dia. Stone Thickness
(inches) Class (inches)
4 A 12
8 B 18
>> 10 1 24
14 2 36
Width,W = 0.4*LA + Do Thickness = 1.5 * DMAX
Width, W = 29.3 ft.
SAY: 30.0 ft.
FINAL DIMENSIONS:

Length, L (ft.) = 45.1
Width, W (ft.) = 30.0
Depth, D (in.) = 24 (NCDENR Erosion & Sed. Cont. Manual §8.06.6)
Stone Class = 1 (NC DOT Std. §1042)
*Cells in red denote required inputs from PIPES.exe outputs
**Velocity from Culvert Summary Table
Do =
x * 2 * 1 .25 = 11 .28'
*** Use 0.4 *L A +D o when TW/D > 0.5
1

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REQUIRED MAPS AND PROJECT
INFORMATION
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I®e 193344
ICI®m 193361
PI : 1933®1
Im 203369
VICINITY MAP
NO SCALE

z
O
G
G
CA
U)
UI
m
TOPOI map printed on 11/06/07 from "North C.a.rolina,tpo" and "Untitled. tpg"
7804€3.000' W 78°47,000' '614' 781140.000' W
•.
( 1 , .r I J
000
VVGS84 i
4 ,6

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_ ? is ti'; ?? ?
;x3>i i ? ?? e - ,
-- --.
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78°48,000' W 73047.000' W
94
PaintedProutTOPQ1t 2001NitkaialG,?xaphicH01?t6 {r, .-,tolo.c.rnj
i '
I.•
rn

1
qN
..... .........................................................................
DRAWN B.Y:
HORVAT USGS SE DURHAM MAP CHECKED BY:
Y:
A S S O C I A T E S S
16 CONSULTANT PLACE SURE 2DI SCALE
DURHAM, NORTH CAROLINA 27707 SIERRA 1 "= I ow,
P 919.49Q.4990 F 919.490.8953
' DATE
537 MARKET STREET. SUITE UM
CHATTANOOGA, TENNESSEE 37402 DOC NICHOLS RD AND LEESVILLE RD 11-15-2007
P423.266.4990 F423.266.570D PROJECT NO
www.horvathassociates.com DURHAM, NORTH CAROLINA 0713

' SCALS MAP 33

N
.. ....................
' HORVATH
A S S O C I A T E S
16 CONSULTANT PLACE SUITE 201
DURHAM, NORTH CAROLINA 2770'
' P919.490.4990 F919.490.8953
537 MARKET STREET. SUITE LL20
CHATTANOOGA, TENNESSEE 3740:
P 423.266.4990 F423.266.5700
www.horvathassociates.com

Pocky Branch From source to a point 'NIS - IV;NSW 08/01/98
0.5 mile upstream of
Durham County SR 1802
Rocky Branch From a point 0.5 mile WS-IV;NSW, C 08/01/98
upstream of Durham A
County SR 1802 to Falls
Lake, Neuse River
Little Lick Creek From source to a point WS-IV;NSW 08/01/98
' 0.4 mile upstream of
Durham County SR 1811
Chunky Pipe Creek From source to Little WS-IV;NSW 08/03/92
Lick Creek
Little Lick Creek From a point 0.4 mile WS-IV;NSW, C 08/01/98
(including upstream of Durham SR A
portion of Little 1811 to Falls Lake,
' Lick Creek Arm of Neuse River
Falls Lake)
Lick Creek From source to Wake WS-IV;NSW 08/01/98
County SR 1809
Martin Creek From source to Lick WS-IV;NSW 08/03/92
' Creek
Lick Creek From Wake County SR WS-IV;NSW, C08/01/98
1809 to Falls Lake, A
Neuse River

Rock); Branch From source to a point WS-IV;NSW 08/01/98
0.3 mile upstream of
mouth
' Rocky Branch From a point 0.3 mile WS-IV;NSW, C08/01/98
upstream of mouth to A
Lick Creek
' Laurel Creek From source to a point WS-IV;NSW 08/01/98
0.1 mile upstream of
N.C. Hwy. 98
Laurel Creek From a point 0.1 mile WS-IV;NSW, C08/01/98
upstream of N.C. Hwy. A
98 to Falls Lake, Neuse
River
' Unnamed Tributary From source to a point WS-IV;NSW 08/01/98
to Laurel Creek 0.1 mile upstream of
backwaters of Perry Pond
' Unnamed Tributary From a point 0.1 mile WS-IV;NSW, C08/01/98
to Laurel Creek upstream of backwaters A
(Perry Pond) of Perry Pond to Laurel
Creek
'
Brier Creek From source to Crabtree C;NSW 05/01/88
Lake, Crabtree Cr.
Little Brier Creek From source to Brier C;NSW 05/01/88
Creek
Stirrup Iron Creek From source to Brier C;NSW 05/01/88
Creek
Neuse
Neuse 27-7-(2)
Neuse 27-9-(0.5)
Neuse 27-9-1
Neuse 27-9-(2)
Neuse 27-11-(0.5)
Neuse 27-11-1
Neuse 27-11-(1.5)
Neuse 27-11-2-(1)
Neuse 27-11-2-(2)
Neuse 27-11.5-(0.5)
Neuse 27-11.5-(0.7)
Neuse 27-11.5-1-(1)
Neuse 27-11.5-1-(2)
Neuse 27-33-4
Neuse 27-33-4-1
Neuse 27-33-4-2

Page 5 of 6

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IMPERVIOUS SURFACE AREA CALCULATIONS
,gyp AREA= ,(? (Phase 1)
TOTAL 422.60 AC ?18e408,566 SF)
MA ,IMUM ALLOWABLE I'MPERVICUS AREA - 4,418,055 SF (24%)
STREETS G S0EWALK d PF•:I'I;II O c'p8,05,5 SF (5.36%
TOWNHOMES:
130 UNITS x 1,200 SHUNIT o 56,000 SF j0 SM
60' UNITS:
152 UNITS x 2,,, 00 SF1UNY7 o 364,800 SF 0.0,8%)
70° UNITS:
105 UNITS x 2,800 SFFUNIT e 294,C00 SF 0.59%)
80' UNITS:
112 UNITS x 3,200 SHUMT e 358,400 SF X1.94%)
MISCELLANEOUS RESERVE e 13,254 SF (0.07
CLUBHOUSE/POOL = 101,664 SF (.55%)
TOTAL PROPOSED IMPERVIOUS AREA = 2,277,153 SF (12.37%)
FUTURE IMPERVIOUS SURFACE AREA CALCULATIONS
(Total Build Out)
TOTAL AREA = 422.60 AC (18,408,566 SF)
MAXIMUM ALLOWABLE OVERALL IMPERVIOUS AREA = 4,418,055 SF (24%)
PHASE I IMPERVIOUS = 2,277,153 SF (12.37%)
PHASE II RESERVE IMPERVIOUS AREA = 2,140,902 SF (11.63%)
OVERAL FUTURE IMPERVIOUS AREA = 4,415,055 SF (24%)

1

' PREVIOUS DWQ CORRESPONDENCE
1

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I Page 1 of 1
' John Schrum, PE - Horvath Associates, PA
From: Alsmeyer, Eric C SAW [Eric. [e-mail]]
' Sent: Monday, March 10, 2008 4:07 PM
To: [e-mail]
Subject: East Durham Land Company, LLC (Sierra Subdiv.)/DA # 2006-40952
Attachments: Sierra Subdivision (7.19 KB); NWP23_6-07.pdf
' Mr. Radman (c/o Mr. John E. Schrum, PE, Horvath Associates, PA):
Due to workload and staffing constraints, we were unable to provide timely formal written verification
for impacts proposed in your preconstruction notification application (PCN) received in our office
on January 10, 2008 . General Condition number 27, which lists the notification requirements for
nationwide permits, states that "The prospective permittee shall not begin the activity: (1) Until notified
in writing ...., or (2) If 45 calendar days have passed from the district engineer's receipt of the
complete PCN and the prospective pennittee has not received written notice from the district
or division engineer." Accordingly, on February 24, 2008, East Durham Land Company,
LLC was authorized to conduct the work associated with construction of the Sierra Residential
1 Subdivision, under nationwide permit number 29, as proposed in the permit application. I have attached
a copy of the applicable permit conditions. The expiration date for the permit verification is February 24,
2010.
' Please note that your work is authorized by the above referenced permit provided it is accomplished in
strict accordance with the permit conditions and your submitted plans. Any violation of the conditions or
' deviation from your submitted plans may subject the permittee to a stop work order, a restoration order
and/or appropriate legal action.
Please let me know if you have any questions regarding this verification, or any of the conditions of the
permit. To request a formal authorization with a signature, please reply to this e-mail or
call me at telephone [phone], ext 23.
' Thank You,
' Eric Alsmeyer
Project Manager
US Army Corps of Engineers
Raleigh Regulatory Field Office
Tel: [phone], x23
' Fax: [phone]
Regulatory Homepage: httn:lAi it-ion.smi,^ itsace_arnw niillWETLAIVDS
Please help us better serve you! Take our brief online Customer Service Survey.
(hula:IAM,m,iMA_ senv. resace. arnrt . m lIscripts hsrs3_ p1?FORM regtrlatoW,
(Hard copy by mail to Mr. Jerry Radman, East Durham Land Co)

3/20/2008

DIU
pint n? i ?_r1'e
ilm) 1T. Sull Directar
;Divi,cinn of l% Mcr Quahiv
' Memorandum
August 20, 2007
537 ?' ?C?11C37 Cifa3?ge ardllig fine Rc fi'c hJ ,"_;a?d i roval c'Strrnva!-erMaiimge-,neat Plans
vkI
.-'associated vith 401 Ce1-tircatio l Applications
Tlae purpose of this memorandum is to initiate and publicize a major charge in the review and approval
of Stormwater Management Plans (SMPs) submitted as part of the 401 Certi cation application process.
At present, all activities that require a 401 Certification and that will also have impervious surface
coverage equal to or greater thali 30o"O* (this 30% is refer-ed to as the "impervious surface tlureshoid")
are required to submit a storlnwater management plan as part of the 401 application process for review
and approval by appropriate DWQ 401 Staff. This cur sent DWQ review and approval is in addition to
any local governnent review and approval of the SMP that may be required under local goven-iment
implementation of a State-mandated storlnwater program. In an effort to maximize the use of limited
staff resources at the State and local level, and in order to streamline the pennitting process and remove
any unnecessary duplication in the review of these stormwater management plans, effective on the date
of this memorandum, SMPs that have been approved by an element of a local govetnivent as part of that
local government's implementation of a State-mandated stonnwater control program, will not require
additional stonnwater approval from DWQ 401 Staff for the approval and issuance of the 401
Certification. For the purposes of this policy, local approval of the SMP under the following State
storrnwater programs shall satisfy this requirement and shall not require the approval of the SMP by
DWQ 401 permitting staff as part of the 401 application process:
Water Supply Watershed II1 111, and IV
Local Implementation of the NPDES Phase 2 Program
• Universal Stormwater Management Program
Nutrient Sensitive Waters (NSW) Stormwater Nutrient Loading Limits
• Randleman Lake Water Supply Watershed Stormwater Requirements
Under this new policy, applicants shall submit:
I . A valid approval letter from the appropriate local government indicating that the proposed
activity has a SMP that has been approved and indicating under which State storrnwater program
the approval, has been granted along with a copy of the approved SMP, or
2. If the necessary local approval of the SMP has not yet been obtained at the time of application,
the application should indicate that a SMP has been, or will be, submitted for local government
approval, indicate the local government that approval is being requested from, and indicate under
what St'at'e storrnwater program the activity will be covered by- Any 401 Certification approved
under this scenario shalt be conditioned so that the proposed activity shall not commence until
such time. that the appropriate local approval has been granted. In addition, following local ?Ppi` Carolina
hcrrrllq
North Carolina Divismn of Water Quality 1617 Mail Service Center Raleigh, NC 2-M99-1,617 Phone [phone] Customer' Service
Internet_v)-ww.•rtcwatcranalitv.core Location: 512N. Salisbury St. Raleigh, NC 27604 Fax (97'9)733-96:12 1-877-623-6748
An Equal' opporlunVAffirmative Action Employer - 50% RecycleMM. Post Consumer Paper

gcverrrncrnt approv,-:,t, a cony of the approved SIv l s".al! be sA..ahmitted'.I D`'V'Q :`car recard-
keeping purposes.
acations nor proposed activities that exceed the irnpenvious surface threshold
Applications for . a01 Ce?-ti f
but are not within a local jurisdiction that is implementing a State storinwater program :rust still contain
a SMP for DWQ review and approval. Applications that exceed the impervious surface threshold and
do not contain a SNP or tine infoniiation specified in #1 and 42 above, sliall be reta med as incomplete.
As a result of this policy chaange, Ilae Division of Water Quality will develop a comprehensive train' g
program for those local govena _ment personnel directly involved in the SNIP review and approval
process. Once this training program has been developed, the Division will require that local SNAP
' review personnel attend and successfully complete this course of instruction in order to continue tfic
implementation of this policy within that local jurisdiction. The Division will also develop a proactive
audit and review oro?-rann that will be intended to ensure that the oppkable stosi-nviater prograrnn
requirennents are being sdiccessi=ally ilrnplenlented at the local levee.
Notwithstanding the policy previously set forth within this document, Ohe Director of the Division of
Water Quality reserves the right to require the review and approval of individual storinwater
management plains on a case-by-case basis in order to ensure that a proposed activity will not violate
water quality standards. Additionally, the DWQ Director reserves the prerogative to provide comments
to local governments of special provisions that may need to be incorporated into locally-reviewed SMPs
in order to provide an enhanced level of protection to sensitive watersheds or to provide in enhanced
level of storinwater control on unusual projects.
Please direct questions regarding this new policy to 'form feeder at 919-733-5033 extension 528 or at
tom.reederCa nemail.net or Cyndi Karoly at 919-733-9721 or at cyndi.karoly( )ncinail.net .
Note: Under the ongoing renewal of the NC General Certifications it has been proposed to lower the
' impervious surface threshold to 24% when the new General Certifications go into effect.

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J ?

May 26, 2006
MacGregor Development
Attn: Bruce Herbert
201 Shannon Oaks Circle, Suite 201
Cary, NC 27707
b
r)EC a
J U d i ^^7
ill
MACGREGOR DEVELOPMENT CO.
NB R# 06-135
Durham County
BASIN:
Neuse River J(
(15A NCAC 2B .0233)
Complaint
Incident #
Tar-Pamlico
(15A NCAC 2B .0259)
NOV _ Buffer Detennination
Appeal Call
Project Name: Earthquake Addition S& E C# (8781.`Q)
Location/Directions: Located south of the intersection of SR 1908 and SR 1905 and north of the SR 1906
Subject Stream: UT to Lick Creek
Date of Determination: 5/9/2006
Feature(s) Not
Subject Subject Start a Stop@ Stream
Form Pts. Soil
Survey USGS
Topo
A X X X
B X X X
C X Stop
channel
flag X X
D X M01 flag X X
E X X

Explanation: The feature(s) listed above has or have been located on the Soil Survey of Durham County, North
Carolina or the most recent copy of the USGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been determined not to be a stream or is not present on the property. Features that are checked
"Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
other streams other streams located on your property that do not show up on the maps referenced above but, still
maybe considered jurisdictional according to the US Army Corps of Engineers and/or to the Division of Water
Quality.
No Carolina
Nan`turally
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Intemet h2o.ennstate.nc.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
_?lilliam G Pass Jr Sec°e'arv
,iih C ?olir?a Departfnent ?if En,?iro!ImePt and tlatural P.esnr,rces
412n W. Klimek, P E Director
r D,ji-hrn i
7 /21 E/ 21 0 06
Page 2 of '2
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This on-site determination shall expire rive (5) years from the date of' this fetter. Landowners or affected
parties that dispute a determination made by the DWQ or 1; elegated Local Authority that a surface water
exists and that it is subject to the buffer rule may request a determination by the Director. A request for a
determination by the Director shall be referred to the Director in writing c/o Cyndi Karoly , DWQ
Wetlands/401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. Individuals that dispute a determination
by the DWQ or Delegated Local Authority that "exempts" a surface water from the buffer rule may ask for
an ad judicatory hearing. You must act within 60 days of the date that you receive this letter. Applicants are
hereby notified that the 60-day statutory appeal time does not start until the affected party (including
downstream and adjacent landowners) is notified of this decision. :WQ recommends that the applicant
conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask
for a hearing, send a written petition, which conforms to Chapter 150?3 of the North Carolina General
Statutes to the Office of Administrative 7earings, 6714 V..ail Service Center, ^aleigh, N.C. 27699-6714. T his
determination is final and binding unless you ask for a hearing within 50 days.
The (owner/future owners) should notify the Division of Water Quality (inciuding any other Local, State,
and Federal Agencies) of this decision concerning any future correspondences regarding the subject property
(stated above). T7 his project may require a Section 4041401 Fern-Lit for the proposed activity. Any inquiries
should be directed to the Division of Water Qunlit), (Central Office) at (919)-733-1706, and the US Army
Corp of Engineers (Raleigh Regulatory Field Office) at (919)-575-8441.
Respectfully,
Michael Horan
Environmental Spec. I
CC: Maximilian Merrill, S & EC, 11010 Raven Ridge Road, Raleigh, NC 27614
KB Homes, Attn: Chris Prussman, 2610 Wycliff Road, Suite 102, Raleigh, NC 27607
Joe Pearce, Durham County Engineering, P 120 East Parrish St., Durham, NC 27701
Todd Tugwell-US Army Corps of Engineers, Raleigh Regulatory Office
Wetlands) Stormwater Branch, 2321 Crabtree Blvd, Suite 250, Raleigh. NC 27604
File Copy
Central Files
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Intemet h2o.enr.state.nc.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
None Carolina
?turally

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Project Number:
8781 W3
Project Manager:
DG
Scale:
I " = 156401
Date
041201OG
rev, , ;y
Map Title:
Figure 2. Soils Map
Earthquake Creek
Earthquake Creek Addition
Froject #: 878 1 .W3
Durham CO, NC
Source:
Durharn Co Soils Survey
` ?? ??! \ L Tf t J
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?s E N K
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] - (919) 84&&7
Web Page: www.SandEC.com
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Project Number: Map Title:
878 t W3 Figure 1. U5G5 Quad
Project Manager: Earthctuake- Creek ,. '
' DG Earthquake, Creek Addition ? i Soil & Environmental Consultants, PA
Scale: Pro eCt #: 878 I . W3 11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] • [phone]
1 I'= 2000' Durham CO, NC Web Page: www.SandEC.com
Date: TO- ce:
04/20/06 South East Durham Quad
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f'illiam G Ross Jr ?ecretarv
]orth Caro?ina Depa-rment of Environment and Pdatural Resources

MacGregor Development
' Attn: Bruce Herbert
201 Shannon Oaks Circle, Suite 201
Cary, NC 27707

BASIN:
Neuse River 1
0233)
(I 5A NCAC 2B
.
Complaint
' Incident #
NOV
May 26, 2006
.Alan W. Klimek, P E. Director
Division of Water Quality
1 ACGREGOR DEVELOPMENT CO.
NBR# 06-136
Durham County
Tar-Pamlico
(15A NCAC 2B .0259)
Buffer Determination
Call
Project Name: Earthquake (Ross Tract) S&.EC# (8781.Nv3)
Location/Directions: Located south of the intersection of SR 1908 and SR 1905 and north of the SR 1906
Subject Stream:
1
1

UT to Lick Creek
Dade of Determination: 4/17/2006
Feature(s) Not
Subject Subject Start @ Stop@ Stream
Form Pts. Soil
Survey USGS
Topo
A X A01 X
D X B1 D2 X
C X C1 X
D X D01 & D03 D2 X
lE X E01 X
F X F01 X
H X I101 X
I X 101 X
J X X X
' Explanation: The feature(s) listed above has or have been located on the Soil Survey of Durham County, North
Carolina or the most recent copy of the USGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been determined not to be a stream or is not present on the property. Features that are checked
"Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
' other streams other streams located on your property that do not show up on the maps referenced above but, still
maybe considered jurisdictional according to the US Army Corps of Engineers and/or to the Division of Water
Quality.
' This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected
Noor`thCarolina
parties that dispute a determination made by the DWQ or Delegated Local Authority that a surface water Xatltrallil
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet h2o.enr.statem.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
/2 6
Pace % o 2
maybe. considered jurisdictional accordinc to the US Army Corps of Engineers and/or to the Division of Water
Quality.
' This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected
parties that dispute a determination made by the DNVQ or Delegated Local Authority that a surface `eater
' exists and that it is subject to the buffer rule may request a determination by the Director. A request for a
determination by the Director shall be referred to t'ie Director in writing c/o Cyndi Karoly , .DWQ
Wetlands/401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. individuals that dispute a determination
by the IWQ or Delegated Local Authority that "exempts" a surface water from the buffer rule may ask for
an ad judicatory hearing. You must act within 60 days o the date that you receive this letter. Applicants are
hereby notified that the 60-day statutory appeal time does aot start until the affected party (including
downstream and adjacent landowners) is notified of this Cecision. 7__!V?1(2 recommends that the applicant
' conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask
for a hearing, send a written petition, which conforms to Chapter 13013 of the North Carolina Ceneal
Statutes to the Office of Administrative Bearings, 6714 ro?zil Service Center, Ptalei-h, N. 27699-6714. This
determination is final and binding unless you ask for a hearing within 50 days.
The (owner/future owners) should notify the 1ivision of yVnter Quality (including any other Local, State,
and Federal Agencies) of this decision concerning any future correspondences regarding the subject property
(stated above). This project may require a Section 404/401 Permit for the proposed activity. Any inquiries
should be directed to the Division of Water Quality (Central' ffice) at (919)-733-1786, and the US Army
Corp of Engineers (Raleigh Regulatory Field Office) at (919)-876-8441.
Respectfully,
Jka& &r.
Michael Horan
Environmental Spec. I
CC: Maximilian Merrill, S & EC, 11010 Raven Ridge Road, Raleigh, NC 27614
KB Homes, Attn: Chris Prussman, 2610 Wycliff Road, Suite 102, Raleigh, NC 27607
Joe Pearce, Durham County Engineering, P 120 East Parrish St., Durham, NC 27701
Todd Tugwell-US Army Corps of Engineers, Raleigh Regulatory Office
Wetlands/ Stormwater Branch, 2321 Crabtree Blvd, Suite 250, Raleigh, NC 27604
File Copy
' Central Files
r
' North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Intemet: h2o.enr.state.ne.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
No Carolina
Aaturally

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--
-. I I I I I/ // / ??? 1 I \`----- I I 1 1 I i/ 11 l lll/ 1111 1? / l/ //
./I f
=WATERS OF THE U.S. SUBJECT TO THE NEUSE RIVER 50 fL BUFFERS
[adenntttant sbvams; mwt be confamed by the USACE and DWO[
=WATERS OF THE U.S. SUBJECT TO THE NEUSE RIVER 5o fL BUFFERS
[premdsl streams must be confamnd by the USACE and DWO]
=MARGINAL WATERS OF THE U.S. POTENTIALLY SUBJECTTO THE NEUSE RIVER 50 R. BUFFERS [ must be continued try the USACE and DWO]
SSEC FLAG DENOTING THE STARTING POINT OF THE NEUSE BUFFERS
[must be coafima.d by the USACE and DWO]
S&EC FLAG DENOTING THE STOP POINT OF THE NEUSE BUFFERS
[moat be confirmed by the USACE and DWCq
JURISDICTIONAL WETLANDS
[must be coNfm?ad by the USACE]
MARGINAL WETLANDS
[must be confirmed by the USACE]
- BOUNDARY OF EVALUATED AREA
TIE TO
-CHANNEL
- PROPERTY LINE
TOPO LINES

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IJOTE TO SURVEYOR:
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All stream channels on the Property should be surveyed In
\
- ?
_
their entirety. AN bends should be surveyed and the stream -'-'
f
width eilher shave or noted at each surveyed poh* I r ,
•
WNlands ?- 1 1
-- 1
?
`
\
The wetland bound aries have been OaQged with prink _
?-- - ----\ \? I / 1
/
1 ?
SBEC logo flags. Each flag Includes a number (e.g., 200).
'\ \ /
\ 1 r
Ali wetlarhds should be shovm as dosed polygorss.
Sume may be tied to the property One or the shavn
channel as noted on the flag.
\ 1 / 1 I \ \ t 1 / / 1 1 1

a Soil & Environmental Consultants
PA N
,
Legend
' 11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] a [phone] WE
Web Page: www.SandEC.com
S

1
Project Name: Ross Tract
Project #: 8781.W3
Project Manager: David Gainey
Site Location: Durham, NC
Source: DOT GIS/ Durham County
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L t -I i.eleen FI Sullins, Director
Division of VVater Quality
December 21, 2007
Durham County
EXP# 07-2022
LXPRESS RE' 1 EW NOTJrKCATIION L 7TER,
East Durham Development Company, T,LC
Attn: Mr. Michael Whitehead
201 Shannon Oaks Circle
Raleigh, NC 27511
' -2roject Name: Sierra _Res >derntial Sli l-d';Vfs6.wl
Dear 1Vs•. Whitehead:
On December 19, 2007, the Express Review Program of the Division of Water Quality (DWQ) received your
application for the above referenced project. The DWQ has determined that your application will require additional
information. Please provide the ToHowinng information so that we may continue to review your project and
prevent denial of your application as required by 15A NCAC 2H .0506:
1. The submitted application is for a residential subdivision, NW29 (GC 3705). You have currently submitted a
partial application (only including the road structures). Large subdivision projects can be phased,
geographically by quadrants, but not as you have submitted. It is recommended that an office meeting be
conducted after January 1, 2008 (preferably on January 2°d) in order to clarify the numerous items detailed
below. The express clock will stop for the holidays at 5pm of December 21, 2007 and restart again on January
2, 2007.
2. Please follow the guidelines in the PCN addendum.
a. As per the guidelines, site "plans must show all built-out structures and impervious cover. The plans
must include the final grading contours with elevations. The plans must indicate all utilities and
' easements".
b. Additionally, platted parcels must be developable without further impacts to jurisdictional and non-
jurisdictional wetlands, streams, water features, and State regulated buffers. These parcels must be
1 shown in order to determine that no further impacts will occur.
c. Please clearly depict all of the wetland boundaries on the property.
d. Please provide maps (at least 1:100) in sufficient detail to observe all parcels and features.
3. Diffuse Flow Provisions:
a. Every proposed BMP structure for stormwater management or diffuse flow provisions shall be
permanent, and not temporary. If a temporary BMP is needed for phase I and will be removed during
future phases of development, please understand that a new (and appropriate) BMP must be approved
' by the DWQ and be installed before any existing BMP is removed.
b. All buffer widths shall be measured from top of bank on both sides of all streams. Please show the top
of bank along all streams on plans along with both Zones (1 & 2) of riparian buffer.
c. Please site and design level spreaders in accordance with the current North Carolina Stormwater Best
' Management Practices Design Manual available at hgp://h2o.enr.state.ne.us/su/bmp forms.htm.
Please pay particular attention to the following items:
N_ Doe Carolina
401 Oversight/ Express Review Permitting Unit ? "`turQ??lf
,1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] intemet hLtp'//h2o.enr.state.nc.us/ncwetlands
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i. Locating devices to follow e..isting contours.
ii. Avoiding steep slopes (Maximwn 80,/o for grass filter strip and 6% for forest filter strip).
Slopes were measured to range between 16% and 20%.
iii. Avoiding draws down slope of level spreaders.
iv. Level spreaders shall be designed for 1 "/lnr storm with bypass for the 10-yr storm or for the
10-yr stonn without bypass.
v. Maximum length for any level spreader shall be 136 ft.
d. Please delineate the drainage areas to the level spreaders, indicating amount of impervious area for
each drainage area, and submit design flow calculations for the 1 "/hr and 10-yr storm.
e. Bypass structures shall be directed away from the level spreaders.
f. Please reconcile the level spreader table shown on plan sheet C703 and that in the main application
document. In addition, some level spreaders are not shown on the plans. These include those with end
sections FES 9, 21, 27, 33, 58, 64 and 68.
CY. Please submit a level spreader supplement form for each level spreader, Including the Design
Summary and Required Items Checklist along with all requested items.
h. Please submit one original and two copies of a notarized Inspection and Maintenance Agreement
Fonn for the proposed level spreaders.
i. If level spreaders are designed to receive flow from any BMP, please indicate 9N/T types and
locations, and include BMP outflow calculations.
j. Please see Option 2 of the Sterrnwater Management for Buffer Rules Section of the PCN
Addendurn and also Section 8.3.6 of the NC BMP lKc nual (page 3-8) for guidance on other BMP
options where level spreaders are not appropriate.
k. Please include velocity dissipator design sheets.
Please respond within five (5) days of the date of this letter by sending three (3) copies of this information. The
Express Review Program is a process that requires all parties to participate in a timely manner.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected
buffers. Please contact Lia Myott at [phone] if you have any questions.
Sincerely,
Cyndi Karoly, Supervisor
401/Express Review Oversite Unit
CBK/lem
cc: DWQ Raleigh Regional Office
USACE Raleigh Field Office
Central Files
File copy
Mr. John E. Schrum, Horvath Associates P.A.,
16 Consultant Place, Suite 201, Durham, NC 27707

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Pt'- GE 01
0 Roven Ridge Road - Rcleith. North CaroBinn 27614 • Phnm!: (919) Y46-59X70 . Rae: (919) 946,9467
A \Vw.S31)ihC.co,b1
FAtC TMI1LE SHEET
DA.T E• 2),

The following items are being faxed. Numbe.,, c?l"poges including transrxlzttal_ sheet:-i--
For Your Colrrri-lenO/Approwl
Per Our Conversation.
]Please Advise
Would Like To DISCUSS
For Your Infbrmation
Per Your Request
Please Call
-N, Please Handle
HARD COPY SENT-
' US Regular.Mail Hand Delivery
Overnight ? No Hard Copy Sent
REMARKS.- J ,, --
16..L??71?i?,?IC,Uf1/F
M[W Ice,.
1
IF YOU HAVE ANY PROBLEMS WITH THIS TRANSMISSION, PLEASE
' CONTACT ?Shrv AT [phone].
*CONkUDENTIALITY NOTICE'"
't his transmission is intended only for the use of the individual or entity to which it is addressed and way contain information that is privileged and
confidential. If the reader o(tbis message is not the intended recipient, you are hereby notified that any disclosure, distribution or copying of this
information ,s strictly prohibited. !;f you have received tlvs transmission in error, please notify us immediately by telephone and return the faxed
documents to us at the above address via the United States Postal Service.
hada ff= .r .'_qi p o1Tce:
236 LoPhillip Court, Suite C 3817-E Lawndale Drive
' Concord. NC 28025 Greansboro. NC 27455
Phone, [phone] Phone: (336);40-8234
Fax: [phone]X)6 F4x: [phone]

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?t?'?anrT?.r,?n o?ad - ?.glelFh.rror'!1?',?n.'ic?.?76i4 ;'hont:. ??
FIl$1 RG,SAII I AGREEATE, SIT FOR pROF ,510NAL SERVICES
This propose 1 /Agreetnent for professional ? ?rviCes (Cite "agreement") is by and
t i 103r)-1
?tlVd 3
n? d 43c']l SAC i?CtliiCOi7iTlFRfLa C,0!1151`li?r]t5. CQrr'1,.t7rt'Gil, W;flr.:IG C,'}'hpt?'.t( o.
(hereinafter ' Clierrf „ tZ<,
Revert Ridge Rood, RaleiglL l oyth C?ro6ra, 27614, J)erema,?ter
SST U' 1it? R lt?y4
?arEC shall provide the Services as descrbed'7ei4?w to Client fur the project l?c;rt-eta o;t ? ee.svi';le ?eac', ?ttCltat?]
Aunty, NC (See attached matt). (physica! IQczt:on)
A,,crea gz
SERVICES,
Item 1: S&{EC will attend ite meetin with the NC Qlvislon of Water Ct lit NC-DW .
I m 2' S&F-C will m et with li nt and/or r?}i rl's re resen ive s to review fin ins and iscuss
wetland and st m parml ino 0 tions for the roe 11 requested (hereinafter" -SFr ices")
D ELI-vERA ALES.
S& EC shall provide the fol.law'ing deliverables to Client in association with the Services desonbed above.
Item 1. S&EG will Provide g Lent with a lg er summarizing the meeting.
I m 7: S&EC will r vide clien with a summa f each meet (hereinafter • Ueliverables")
Deliverables - lit connection with the performattoe of the Services, S&);C shall deliver to Client one or more reports or other documents
reflecting Services provided, the results of such Services or S&EC's evaluation of the results of such Services. All reports and documents
delivered to Client are instruments reflecting the Services provided by S&EC pursuant to this agreement and made available for Client's use. All
such reports, written documents, original data gathered by S&EC and work papers produced by S&EC in the perfatmance of the Services
(collectively, "Work Product") are, and shall retrain, the Bole and exclusive property of S&SC• The Services, and any data, recommendations,
' proposals, reports, design criteria, and similar information provided by S&EC to Client pursuant to this Agreement are provided for the exclusive
use of the Client or the project and for purposes intended by Client and disclosed to S&EC as the purpose for requesting the Work and are not to
be used or relied upon by third parties without the permission of S&EC.
F'1r,ES.
The following fees are associated with the Services and Deliverables described above.
Items 1 and .2 will be co .d cted at ou hourly rates b r the attached fee sgedule. (hereinafter "Fees")

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S&EC OPP-RATING GUIDELTNFS
Soil & Frivironmental Consultants, FA (S&EC) is a professional environmental consulting tine that renders opinions in certain environmental
matters, Mules governing most regulated issues (interpreted and governed by local, state and federal agencies) are evolving constantly, and in
many cases, affected by the opinions of individuals employed by these governing agencies. Consequently, S&EC cannot guarantee that our
opinions will be aceepted or permitted by the governing agencies.
Additional work may also be requested by local, state and federal agencies, even when S&EC believes the work previously performed should be
sufficient. Such additional work will be billed at our hourly rates as indicated on our fee schedule (if it is beyond the scope of our initial work.
and if authorized by the client), if the client fails to authorize additional work requested by the goverrtiing agencies, then it will be highly unlikely
that permits or other approvals will be obtained, Even then, authorization of the additional work by the client does not irrrply or constitute a
guarantee by S&PC that a permit(s) or approvals will be obtained. in all cases, authorization by the client for S&EC to begin work confimts the
client's responsibility to pay all invoices for authorized work regardless of outcome of authorized work.
Any and all subsurface utilities (watcr, sewer, cable, irrigation, power, telephone, etc.) am to be located by the client before S&EC's site work.
The signer of this contract assumes all responsibility for any accidental damage that occurs if the locations of utilities are not clearly and
accurately marked prior to cornmemcmi ut of our work.
S&EC Contact Name Chris Flowers
Project Name Earl oa
Project Number 2S1
Date 3/03/03

,, ! rt ?::?d ?rC 'ir ? ? ',rn>' 1 t, r f fits, d cbf ?3 r? i p?:U
?Lc rim sip fr'z? S. L/-ill i f ?udc relit orlon 'f vel c nra ,_,t 1, C"ne r, v,:
cparate?f, ).n fr nit„or and cc rc ) pndcn? ?i'+:rcr u 31 heh ll.d rngn? no io,
?? ti
requested.
The leriris stated in this proty?-al are valid 90 day's frona the carte of this agreetllcnc.
' P AYM ENT TERTAS

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(a) invoices will be subOtitted Mnlrthly by Sc&.EC fqr paymetlt by Client Or 1X77.ttlediately upon frr?pppletion of Services w).1€sa outer
invoicing and pa}rrncnt temm -art agreed to in writing and signed by both the Client a»d S&EC. Fayrwlt i9 due upon receipt and is past due thiYty (30) vml? calendar days fi-ondate of invoice. rf Cliolt has any valid reason for disputing a llk ?rt `on of vanlin?voi emefentul i l Tole t fy S EC ` E n to t?icc
Fiusiness days of receipt of invoice by Client, and if no such notificati.ou is -Ji
that is not in disL%te shall l e paid in accordatlce wth the proccdures set forth herein.
(b1 A 5nanee ehamc of 1.5 per rawittl ol) the unpaid amount of aft invoice or the Rte xfmum tanout)t ailnwcd by lavv v:ill be
ch&Tged on pai due accounts. ?'aymcnts by Client vnll thereafter be applied tint tp a cru d intett ,ind+hcn to the p6mipal unpaid hel._nc.c. Any
attolney fees, court Co*U, or other Cost- inctu d `n enilectlof) of deiinquerl accounts shall he paid by Client, if na;,rncnt of invoices is rid curTe't.
S&EC may auTend nerfcntninp further work.
4? T THOR1ZA7, TOI,,T
' Client (prSY }:
Billing Ad&ess:
r_ -
City: State: zip:
Fay ?d>a?7]t?er. Ally ,
phone Number:
'Email address:
`J
I urtderstand. and agree to all terms of this F?.??1?c75 faL / AC1?EET? iEN 1 alid hereby wt1C17.011ze S?cEC to Rrot eed
' with the Services as d.esc ;? 'm'ove.
Date
As Client, l will regll.' e a Certificate of Insurance from Soil roc Environmental Consultants, PA Yes f No
Client FO# (if applicable)

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ME C Coutaet Name , Chris Flowers Project Number 8791,W12
Project Name Farthn,_ake C'treekMoc Nichols Road Date 3103/08
Soil & Environmental Consultants, FA

S SpSO IZn 4A 62id?e l{<rxi P;,1 gh, N(Wh C;,U'0Iiua .514 PMoYkt, (9N) &46 Sg(Kl gtrx' tQl S) M4-9467
tiv >.4and.EC,.cona
Vee Se)h'edull1e
fees beginning J&Tnuary 1, 2009
Principal
Seliior Pro4cssioclttl il.
Senior Professional I
Professional
Soil Scientist _
Forester
Welland Scientistiiolo.,ist
Senior l n.vironmental T$chlliciw-
Enviroamental Technician II
Fa,vironmental Technician I
AutoCAD Techniciaj
Field Assistant
Administrative
Clerical
Hxnert Witness Test
$110.00
$100.00
$90.00
$50.00
370.00 .?
$70-00
$70.00
$70.00
$65.00
$50.00
$50.00
$45.00
$50.00
$35,00
Double Nonnal Bate
Air Tx
Food (Overnight travel and
Mile e
Subcoutrasts "
Perm;tc- Anrnlication Fees, etc.
DVd Cheek Vdritin Fee
Additional Co ies of }ae orts
Additional Co ies of IB1ue in t3
Additional Plot
Courier
E u% ment ;fee AT
1? ui merit fee CE CPS unit
Subconsultants
Pass Throu h u anent or Field Su lies wil l ha
15%
Cost
$0.50/mile
Cost plus 15%
Cost-plus 15%
Cost plus 15%
$50/`/z day or $100/d
$25/1/4 d.a $50/'/z day, $75/3/a d . or $100/da
Cost plus overhead
ve a 15% hamdlin fee.
*Assumes that an initial copY was aldY provided.
a#Products & servicts outside of S&EC scope
M(NIMUM PROJECT FEE =• $300.00
All fees are subject to change without prior notice.
The time spent on a job will include mobilization, travel time to the site, field work, travel time back to the office,
demobilization, report preparation, map preparation and correspondence. Mileage will be billed roundtfip from the nearest
S&EC office that provides the typo of work requested.
t3,,.N.,.r,,w? of ? r•
N!"'77
ORicr. Lavrndak Drive
'_3b UPW1hp Court, Suilo C 3817 3817--B borv, NC 27455
NC 1 Concot (704Y «a - 9405 P XIW 13361 '1?
Fax! ((704) ) 734 M-94720-940b Fax: 13361 -K!-8235
Fax:

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Fa!
,? ,T-, I'.'?TI .? SSCK'i. TP ?, t'.?.

S<?z.hC Fro.jecl ?` R731.1?'1
„1Evalttaion
11tr. Roach:
In August 2007, S&E'C personnel completed the verification of wetland delineation and stream e-valuation.
on the Eg;b,pt Property in Durham County. You will find the attached report detailing (Y,-,r findings.
Supporting snaps that further document the v-,etland and stream related site characteristics are also
attached. Please review this information and call our office if you slave questions.
The next step in the wetland and stream verification process is to visit the site with the Army Corps of
Engineers' agent for Durham County. S87EC will schedule this meeting at your request; therefore, please
contact S&EC if you would like the verification meeting scheduled immediately. In addition, l am
attaching a copy of our agent authorization foram that you should complote and. return; this will grant
S&EC authority to correspond with the Corps on your behalf.
As you tnove forward in planning your development; S&FC personnel are available for site plan review
and permit consultation services. Please contact S&EC if you have any, questions related to wetland. and
stream regulations or if you need clarification of the attached report:.
Sincerely.
re Y?f .4
Jy.-ne? R. (3raham Jr.
Bi;?iogistr'T'nvirrotunental'gcicntist
Attachments:
1) Wetland Delineation Report
2) USGS site vicinity map
3) MRCS Soil. Survey
4) Wetland & Stream. Sketch Map
5) Agent Authorization Form
6) Requirements for Delineation Maps
{? t
David Gainey
Project Manger/En dronmental Scientist
Charlotte Of lce: Gres hc,r ice:
236 LePhillip Court, Suite C 3817-E Lax mdalc Drive
Concord, NC: 28025 Greensboro, NC 27455
Phone: [phone] Phone.: [phone]
V-.,. f70ns 7')1) 0.41M Fax: [phone]

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Oi"i?? E 107 - :]?i)i.?-l1 ;' ??'?

b, e't ave C ...... ?Ined the', 4 we'Llands at-,? 17 ?trca11 `'1171 is aecoulit for the jur:sd'ctlollih, V,'Cte?'S
observed'. '1)-I ce')`C!s J .e aI proxi mete locations of strewils ; ncl
wetlands idCeT]tified diiri,io Oi]1' e1'i]li.?t1t70a]. Plei#tie rifer t() the sICC'C'. ] Tnaj, and :11e r:sUIts ar(i
ecorTimendairoi.)s s --ct' i) lit- '.IOLv det;ltle?.' ll]{(?? l':ltlt',(:il.
") !B f; f`h !? ":iii W
77)e detailed wetland deiin-ation consisted of traversing the property to examine soils,
vegetation, and hydrology across -he site i]) search of areas that meet the criteria for jurisdictional
wetlands as described by the procedures set ioril) in the t cn??s of Engineers 4'a'etlat.(Is
Delineation Manual (January 1957 - Finial Report . Areas on the site with positive indicators of
hydiic soils, evidence of ivetland hydrology, and presence of hydrophytic vegetation were
flagged with sequentially numbered, pink S&EC logo flagging approximated on the map. Proof
of wetland hydrology would be the existence of hydric soils with oxidized root channels in the
upper 12 inches of the soil profile, ,v"ater borne deposits, drift lints, scour marks, drainage
patterns; regional indicators of soil saturation, etc. Surface. waters such as intermittent and
perennial stream channels, ponds, and lakes, which are also subject to regulation by the US
Arn)y Corps of Engineers (USACE) as waters of the US, were also identified. These surface
waters may also be referred to as jurisdictional waters to indicate that they are within the
jurisdiction of the USACE. It is important to note that wetlands are also classified as waters of
the US and regulated by the USACE -under authority of the Clean Mater Act (33 USC 1344).
S&EC's Neese stream buffer evaluation consisted of examining each feature on the site tlrat is
shown on the most recent version of the US Geological survey's 7.5 Minute Quadrangle or
NRCS soil survey using NC-DWQ stream evaluations techniques.
clizrlotte, orifice: ?JCCC.i,shgro office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive
Concord, NC; 28025 Greensboro, NC 27455
Phone: [phone] S&LC Pro.icet ?1 8781 A 4 Phonc: [phone]
A........ t I,; Inn Fax: [phone]
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1Vc have deterinMed tbat jnlZSCliCti(Zlial vvatc,s'i.c.. sticams and vvetl,md`-)) cN'st r?Ii the site.
Please rei'ci to the attachccl "\?'Ctland Sketch shccific tiag numbers L1116 alil?roxLrlr?ie
?;ca..ions_
L1)1C1 l )tthGI ?ioli, i s, ti ?d ?'ilhill ?l c yl?i llrOt L !7'
(?]?
C
"c"Ll xs iii
•?f•;.ciii v. :s
"[°.atLU is
TI-05
eattire f?3 ?s "m IM( -ii-'iC, alike] '.hat starts rt S12 anti stop::
ceature 1 draii,s ??n(n she ;iortpia??e tei•I-j orciocl-ty bm,,idal and illfo Cal Ire
7-KUi'i A associated "r''CilciI;iClS 1.10!•"I j"v ?_ .?i }TTP(..)
2I c-wrc B is pemiiiial cl),imiel (i`,4art'n Branch) adl,a iit t0 t.lie south castem ir©F?c.Irtif
boundary.
Feature BI is a perennial chaltiiiei ilia! dra;ns into Feature 13
eature B2 is a Aarg'nal channel
C Feature B3 Is, a Marginal channel
Feature B associated wetlands (Flags 1.IITTPL:- 123TTPL), (126TTPL-129TTPL), and
(130TTPL-132TTPL)
Feature C DC03 is an intermittent channel that starts at flag DC03 and stops at flag
DK04. There is a marginal connection as the channel starts again at DKOS and flows into
Feature B
Feature D was not located in the field
Feature E is a perennial channel adjacent to the northern property boundary.
Surface waters on this site flow into Lick Creek in the Neuse River Basin in Durhain County,
which has been classified in NC-DWQ's "Classification and Water Quality Standards Applicable
to Surface Waters and Wetlands of North Carolina" as WS-IV NSW.
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1111I:1C)1J?,it(?L7r11QUt 1.1.E ,)ICCi111'1 'i4??i1 t?tl7tll? (1 1? t,GdCt?
strel'lm}' 111(c the ()Ile ons)te.
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tl?•.,?? '=t?5, ?i•? i,??''::?'7 f? ':7.1 ?(?L? ? J ?Llii?ri;;,'jl^i1.

,ect t0 th(. 74rai' r Sttp1"1.V
11 C- so'-nm :11 i ,,le.nt;«Ay sulo
t_114 C'.: l :2; r. 'S T' c.il t `=. 1'p! u56 I'C c.«'i:l t' -t be "L1se afthe -,,va'eZ qL1fl}I [y
C1ci,iSlliC 3 :C-]i oil this 'l':l!1 "C:CIl t C: '_ St c: t' ' 11flG1yt'_a? 30-foot "ar 1 00-lbef Ti'1?::Zan.
Lll??11?'1 C"GpCll(j!I?P U,)(-)Il -6 ii'1??l rV;(')L!l sl1rfiacc of !"-6 ]?i'.11;i14C'C C1CVC.10.1117tLe11t. ?iQ? 01 01er Sl?I' C°
IYZteJ'? «'1 t u'I"(: 1nCj:CCit J ,'?C }:?eT"e??h1A1 1H3it;?"l S Ott t^,n ?, ,tit recent 1.j"GS T(1p0g3"?o43)lIC
Quads-aii'g' t,.
111e fo110'or111g labIC(S) present the essiLg-ed labe'1 ('i-o. r.. 13, I, ?, ?. Cic.} for ea CIA f5catu-1,-e Cn
the site.. Information is a."ko liresented I-epgrdili,* the classification of each ?Caturc on tltc USGS
Topo_lllic Quadrangle and ]\I CS Count\ Soil Survev.
'r'f c1assi1ic1C1115

lZe,.ttire Cla spt"calicil 07
USC:S Cla ss'fice ti41>l 1)'.1
Soil Sm-N'e1' f "assit;ed ;n
1"eld as
DOZ111
Al intermittent intermittent intennittent DK01
A Not. Shown intermittent intermittent DKO^
A2 Nnt Shown intermittent intermittent M01
A3 Notslim"n intermittent intern-littent S12
B Peretmial perennial perennial Off Property
C intcrnlittent intermittent intermittent DC03 and
DC05
D Not Sl)ovvn interuutten.t marginal Flagr Marg2
E I perennial
i perennial perennial O££-property
A4 lntern)ittent Intermittel)t intermittent Offpropert}
All S&EC flags comprising the wetland and jurisdictional waters delineation should be surveyed
and a Wetland Delineation Map generated for use in site planing and USACE approval amid
permitting. The entire length of each stream feature was not flagged, but will need to be suivey
1"A Field Guide To North Carolina Wetlands"; Department of Enviromnent, Health and. Natural
Resources, January 1996.

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c?i.??atio:! N,Li tl s;iotald Iinci?!?IC ail (,I ,? c 7n??Irrnt+iic,tl iistcd on tl.e ?.ttac!,eCd
1
Sr_h{ - (telineat.iOn flag nunibcl•s should be sixown on the ?vLtland
sui-vcv ?lcasc hav., the property otivrcr or contracting buyer corr)plclc. the attacllccl ageait
authOIizatiol, I'mil ;f you v?,,Cmld lil.:c SS" C. to act on their behalf Tor requesting approval of the
"veilullE' dclu_JEltion. wi'l :'ill E,Is(I ?Lst-d :Il l',r'C{?ar'111?? a l,'Cl"11Jt apnlicatic l 16i 7111pc:CiS ;[' tlLilnE' `'11V ;I"Ql'rLlect „ ti?1'l Pos,26 'lllt?dr'.tS.
v, C 1:
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t1?,i?,??? 1Cii(??iii.l?'v_,?C-1:.4?Sii?1Ci Sp'c?iC?1t ?;'.i?I:f•:il?_C
} thbi Il1C '1 SLct u;l(? ?Cc?l'?c_1 rlatr?alls ?l!?;t'l?a ??1°(!
are E..l_'? { c c,
"lesc t:oj,s !-t'

The Neuse RJ ?'er Basin: ',ti atrlent Sensitive Waters i4i a,na??ent Strategy: Protection and
Maintenance of Riparian Areeas«;l:ll E) istin forest Vv e€getation (l 5A. NBC AC 2E.0233 ruics
apply 50-foot wide riparian buffers directl} adjacent to surface waters in the Nerase Rive- Basin
(intermittent streams, perennial streams, lakes, ponds, and estuaries), excluding we`,lainds. The
rule defines Sl ri,ace \vaters as features approximately slhoNvn on either the most rcccnt version of
the soil survey anap prepared by the Natural Resource Conservation Service (MRCS) of the US
Department of Agriculture (USDA) or the 7.5-minute quadrangle topographic ?naps prepared by
the US Geologic Survey (USGS). Surface waters that appear on these maps are not subject only
if an on-site detennnination by the NC Division of \Vater Quality (NC-DWQ) shows that the}, fall
into one of the following categories:
1) bitches and manmade conveyances other than modified natural strearrls;
2) i1/Ianinade ponds and lakes that are located outside natural drainage Nvays; or
3) Ephemeral (storrm at.er) streams.
J-Vater SIF17171y Waters .Rules:
Feature $ and E is mapped as a perennial strearn on the USGS topographic quadrangle. Those
perennial streams identified on the USGS within a classified water supply watershed require a
I00-foot buffer for new development activities «.ith greater than 24 percent "built upon" area
(i.e., percent covered by impervious or partially impervious cover) and a 30-foot buffer for
activities with less than 24 percent built upon area by the NC-DWQ, (These buffers are in
addition to the any other stream buffers. The stricter of the two buffers applies to these stream
channels.)
I- etla d .Permitting:
Please note that new Nationwide Permits were issued by the USA.C:E on March 19, 2007. The
USAGE Wilmington District issued revised Regional Conditions for the 2007 Nationwide
Permits on June 5, 2007. Therefore, the USACE may once again review requests for impacts to

J11; LS..
'? all ?]f:i
OI1C?' i.Vi1? ?1 11? i l
advise e"I of tale specifi i.C "ill a`, l.l;)c ,. ct15 "l5 ?GLL iii J? [eSti :; i- lloh the plailnii- p:c)cc? .
' Ge-nerally, vveiland impact pcrnlits are issucd on a poi-project basis as determined by the
USAC.E. `;"he USA CE his deter wined fiat. impacts, on parcels sub- divided f.-)m larger tracts are
sometimes cons)dcrccd to (?e cuin1,d<alve ?0 z-Jstnsf i IIIpnts ?(?1' the I,Ivvuc tr et. ',1 )ISIS thl- a5c,
17Gll l?I:CS.'`.E.1(1ti `CI 1 ?rtiTl'cc'1.Ut' Ill? ' lit I '(,11F IilYb'G:l._:d It1?1.c1''ti:S do `1L!11
must (ie CJ1"!? Ci;_• :;'1 111 1?^ It G. _. Fll S_ j%' 'C?ll j.
he vv'ellwid', and _J7C I? y'p? T"c:l7C r1 !Ij,4i 11111 1 ul:res) ',,Fels
CCis:s ?C.'_I IJy"?'' J jjy "Cj J isle 4Jj =C' i.c$?715 i'il tiC?1lUt'CDilal 5 11 ?iT1iS s?l? '?' t!F sit
a?'Cns t.,al ?isat n],,.) I ?C;'?)' , ?CCO??Ot _CtiOR .a1ilIor ? ilCli .?,1 ,';sl??i? 1 ,elate i,ng "GC
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Pror,ct Number: Map Tfdc:
878 JN4 Project Mane er: fIgvre 2 - ?JOIl Survey
Soil do Ettvlt+onmental Consultants, PA
Davnd Gainey F, yWt Tract Itacopxvwda.Pt•r rC27614
5ca?e: Durham County, NC i wwfb , sr?c,wn
I,32CJ'
l " =
Date: 5OLrce:
08/10/07 5E Durham Quadran&
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Detailed Wetland Delineation Map Project (dame: EGYPT PROPERTY
1 Inch = 400 feet
Project # 8781.W4
MProject Manager: David Gainey
$4 4 BowImmulntwl C6nltihwis, VA Site Location: DurhamCounty, NC
11010 Hi:wl K,4r NQ • {i"q( W- 21514
(3141A44ON-J4191A/,Zi August 10, 2007
w+uP"* *if*4w4c-w Map by: James Graham
Legend
=Perennial Streams =marginal streains
Inle niltent Streams = Marginal Wetland
= Properly Boundary
= Jurisdictional Wetland

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G -r,?-,)a L7614 Nrer,e• tM,'
.•,?=.^u. Sz ncF.C.corrz
August 10, 2007
S&:.EC Project :V 87,31.'R4
IGP`V TH ASSOCIATES. 1?.:..
Attn: JEFF ROACH
16 Cc?NSULTANT FLACE, SUrrr 201
i
C ;.1.OI_iT.
iir.N:?.i41. `dORT11 s
o: ?et, rle:_1 i?%etlar d l?lire c;, .,. (; S rF^°'zi
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r, August 2-007. S&-EC persornel completed the verification of -wetland delineation and stream -eVa:suat cr
on the E--vpt Property in Durham County. You will iind the attached r eport detailing our findings.
Supporting maps that further document the wetland and stream related site characteristics arealso
attached. Please review this information and call our office if you have questions.
The next step in the wetland and stream verification process is to visit the site with the Army Corps of
Engineers' agent for Durham County. S&EC will schedule this meeting at your request; therefore, please
contact S&-EC if you would like the verification meeting scheduled immediately. In addition, I ant
attaching a copy of our agent authorization form that you should complete and return; this will grant
S&,EC autbority to correspond with the Corps on your behalf.
As you move forward in planning your development, S&EC personnel are available for site plan review
and permit consultation services. Please contact S&EC if you have any questions related to -wetland and
str regulations or if you need clarification of the attached report.
Sincerely,
C?i Jr_
A01st?Envirorunental Scientist
.Attachments:
1) Wetland Delineation Report
2) USGS site vicinity reap
3) NRCS Soil Survey
4) Wetland c& Stream Sketch Map
5) A=t Authorization Form
ti) Requirenwnts for Delineation Maps
David Gainey v
Prc ect Manger/Environmental Scientist
ate 0WW= CX=M*MOfre 1
t (M) 72G-19405 p1mic l:tiaa-
IPm.- r M'% 7AVL04M .ax: C-30' r6 540-'9235

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i i 010 a; P, ':c zn f leis , !Nnrlh Carolina 276114 ? Phony 6.04 7
111\"-,v. SandFC.coin
1 E?r?<NII?I?I) ?' ??t??? t I)1LINEATION &r NEusF, SrRt?,??tit Rui-F['>R FOF-'
l?(7,l'PT PROPER"IT
1 <?„ tuly 10, ?007 cHC ersonnel completed a detailed v,,,etland delineation land Neese
:ire ii? '?UftEr E'' ,l t<iTiC on O 1 t E apt P roncrty appro? mately (-2G0 acres). Figure I and Fi2vre
s!l(`?'' `1 E iOCC:t:C?t2 i??r3j}I?IC Qu?dT??g1' rild ??tRCj (ri]??ty Sni! -
y. rCcVccf
t-XFsCL'FIN'E SUMMARY
Web ave detcl mined that 4 ''c`' acs and 7 .Lream C1?arnels .count ?or the 1vHsdictTinall waters
observed. The attached Ne.lat?d Skctc? map jepicts the approximate local}ens of streams c.nd
wetlands identified dunng our i evaluation. Please refer to the sketch map and tl?e resuiis and
recornineindations section be!nrx for more detailed information.
SCOPE OF NVORK
The detailed wetland delineation consisted of traversing the property to examine soils.
vegetation, and hydrology across the site in search of areas that meet the criteria for jurisdictions)
wetlands as described by the procedures set forth in the Corps of Engineers Wetlands
Delineation Manual (January 1987,- Final Retort). Areas on the site with positive indicators of
hydric soils, evidence of wetland hydrology, and presence ofhydrophytic vegetation were
flagged with sequentially numbered, pink S&EC logo flagging approximated on the map. Proof
of wetland hydrology would be the existence of hydric soils with oxidized root channels in the
upper 12 inches of the soil profile, water borne deposits, drift lines, scour marks, drainage
patterns, regional indicators of soil saturation, etc. Surface waters such as intermittent and
perennial stream channels, ponds, and lakes, which are also subject to regulation by the US
Army Corps of Engineers (USACE) as waters of the US, were also identified. These surface
i waters may also be referred to as jurisdictional waters to indicate that they are within the
jurisdiction of the USACE_ It is important to note that wetlands are also classified as waters of
the US and regulated by the USACE under authority of the Clean Water Act (33 USC 1344).
S&EC's Neuse strcam buffer evaluation consisted of exa;nining each feature on the site that is
shown on the most re=t version of the US Geological survey's 7.5 Minute Quadrangle or
NRCS soil survey using NC-DWQ stream evaluation tedini ues.
1

t Offi= 3917-E, a+pc+t UC Ric
]Erb' -n +Cowt, Suite C
?, 7WC '•I74 S5
,1C 2=5
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PPS (704) 720-0-405 S&E7C Pao*xt # 978 1-W4 (?? ??1 ^"234
.. n+m?..?. -rnm nAH .r Amaou4 113_ N.1141N nm ()) 5"m
Ifre:, acids and Jurisdiction al !I'ater:s:
VVe have determined that jurisdictional waters (i.e., streams and wetlands) exist on the site.
Please refer to the attached "«Vctland Sketch Map" for specific flag numbers and approxinlate
i0c'iloils.
- ',voiland to attires and unscilct-tonal :'tre t:iS -,vole obsen,cd \vlthrn the Fg1,pt prapeitj': the
at3pro_,imate locations are illustrated or the aat--ched ,vedand sketch rnan. Streams and vvetlancs
ioentliiLd on-site are dcF crlrcd Belo%v.
t.IrtuA 1. inter-mittenl chann,: ! i ut starts 2t DKOI .nd t I K05. the Ch.:i,tl2,
:3 malQiI? I for i',ie rest C, I" its C>:tent on 43rol?ell
Fe.- ri.i c Il I1-,fermi tten! channel that Starts at D02 and ilov. s -e ature .
l=eattire_ ,'_ 's oil intcmr,',tter:t Ch2P,nCi Aiiat St-, -t Iv101 S.ild CtOps D KO5
.'.:tS ?t1 &;td c'r pS ?t D 0
?
Fe?at+?rl' . ii 15 an 111ti'riili`c:?t Gh 1a', ., '3°l'i"-t tt
'_?'eature ,,4 drains onto he rcrthv,estern property l?oundary and in e3ture r.
Feature A associated wetlands (JO1 T i PL-J34TTPL)
• Feature B is perennial channel ('viartin Branch) adjacent to the south eastern property-
boundary.
Feature BI is a pere.rhlial channel that drains into Feature B
Feature B2 is a Marginal channel
Feature 133 is a Marginal channel
Feature B associated wetlands (Flags 1 I I TTPL-123TTFL), (126TTPL-12'9TI 'L), and
(130TTPL-132TTPL)
i + Feature C DC03 is an intermittent channel that starts at flag DC03 and stops at flag
DK04. There is a marginal connection as the channel starts again at DKO5 and flows into
1 Feature B
* Feature D was not located in the field
Feature I" is a perennial channel adjacent to the northern property boundary.
r
Surface waters on this site flow into Lick Creels in the Neuse River Bay in Dushmn County,
which has been classified in NC-DWQ's "Classification and Wafer Qua] ty Standards Applicable
to Surface Waters and lVeflands of North Carolina" as WS-IV NSW.

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T' :S 1?? e I hh?_??',1??il 1 ? ?7 (,e 0 190vt11 ?.a1Uilrta ,?i 11 t1_,1 ?"Ft!?Jrd
COrTV?n10n thr"O1lQhOUt the T?iedihO;It re?l.Orr Of NOr',11 C9rOlilta and ,S foUrld n`lalnk along headwate1.
streams like the one onsite.
Cott ritl•/Cite of lhrrhani Buffers:
The surface waters potentially subject to the Durham Riparian Buffers include Features A, AI.
A2. A A4, B. BE 132. C, D and E No other surface ,vaters are indicated on either the USGS
topo<,rapi is or Durham County Soil Survey maps. The only surface ,,;paters that S&EC actually
}elie? es a -.e subject to the buffers consist of Features All. .:,k2 ,'A3:,., A4, B, B l. C and E. NC-
?? 'Q S: LI?t CC 1tiI?ll our Strea?l buffer Cle,?T -11 n3ii 1 `.. t'1e, ?r ?^rr fj ,:1t "ftCr re?Ll2tlo^,c
Z:iv','3r\% ,t,•.'<-n Cit?f and CC}= otv uI*FialCiiof1.
IVafcr• Suppi,r NVMer Rules:
The surface waters on .-,,'Lc (i.e. perennial stream) pctentially subject to tl,e rilate,r Supply ter
Rr?les incIude Features A. B and E. 'lease be a=,-are that because of the ,vater quality
c?assitica'icn on '.his site, Feature B. %vill re quire a _ t?te mandated 30-foot or IM-foot rirar;an
buffer, depending upon the inipenrious surface of the proposed development. No other surface
,raters on-site, ?.re indicated as perennial features on the most recent USGS Topozraphie
Quadrangle.
The following table(s) present the assigned label (i.e. A, B. C, 1, 3, ete.) for etch feature on
the site. Information is also presented regarding the classification of each feature on the USGS
Topographic Quadrangle and NRCS County Soil Survey.
Table 1: Surface water features and classifications

feature `Classification on
USGS Classification on
Soil Survey Classified in
Field as
Origin
A intermittent intermittent intermittent DKO I
At Not Shown intermittent intermittent DKO2
A2 Not Shown intermittent intermittent NIO i
A3 Not Shown intermittent intermittent Sit
B Perennial perennial perennial Off Pt-operty
C intermittent intermittent inteemittent DC03 and
DCOS
D Not Shown intermittent marginal Flag lvlarg,2
C perennial perennial pal 'Off, qty
A4 Intermittent Intermittent I ttent Off 7Cq=tY
.H S C flags comprising the wetland and jurisdictional waters delineation should be suveyed
and a Wetland Delineation Map generated for use in site planning and USAF approval and
permitting The entire length of each strearn feature was not flagged, but will need to be survey
g"A Field Guide To North Carolina Wetlands°; Department of Environment, Health and Nal oral
llesoumes„ January 1996-
I -

P' `r P .v EtiC -IECt ?ti lcr 3io11
-enter line (with channel ?.vldths noted at ? :,ch survey point) or at the top of-bank. The 'wetland
Delineation Map should include all of the information listed on the attached "Requirements for
`Vettand Delineation 1kl2ps.- S&,EC delineation flag numbers should be shown on the wetland
survey. Please have the property owner or contracting buyer complete the attached agent
authorization farm if you would like S&EC to act on their behalf for requesting approval of the
wetland delineation. This form will also be used in preparing a permit application for impacts to
,vetlands or surface ,vaters .vhen v,,e are provided with a plan showing the proposed impacts.
S&EC cannot conduct correspondence with the USAGE unless .ve have agent
mthor izntion (see attached Agent Authorization). This authorization form must he filled
rG,nt in pis entirety and retlrrned to S&FC fit fared cr?py is .ICeeptf ble).
Re<Tut.itions
^i general ',1st of regulations that appiv to jtl£7SdFCtlonal `vetlands and ?.vaters present on the sate
are discussed below. Please be a v arc that other local, state. and federal regulations not included
1 in this IISt Ii?" V also al?pl; ?c?_l r r5 ? .el are available to discuss th.ese I ?ulatlons as they
apply to ?;,a,,r l,roiect.
t Alcuse Ri?,er Buffier Rules:
The Neuse River Basin: Nutrient Sensitive Waters Management Strategy: Protection and
Maintenance of Riparian Ares with Existinz Forest Vet=etation (15A NCAC 23.0233) miles
' apply 50-foot wide riparian buffers directly adjacent to surface waters in the Meuse River Basin
(intermittent streams, perennial streams, lakes, ponds, and estuaries), excluding wetlands. The
rule defines surface waters as features approximately shown on either the most recent version of
j the soil survey map prepared by the Natural Resource Conservation Service (NRCS) of the US
Department of Agriculture (USDA) or the 7.5-minute quadrangle topographic maps prepared by
the US Geologic Survey (USGS). Surface waters that appear on these maps are not subject only
if an on-sate determination by the NC Division of Water Quality (NC-DWQ) shows that they fall
into one of the following categories:
1) Ditches and manmade conveyances other than modified natural streams;
2) -Manmade ponds and lakes that are located outside natural drainage ways; or
3) Ephemeral (stormwater) streams.
¦ Mager Supply Wafers nukes:
Feature B and E is mapped as a perennial strearn on the USES topographic quadrangle. Those
perennial streams identified on the US GS within a classified wafer supply watershed require a
100-foot burr for new development activities with greater tlm 24 percent wilt upon" area
(i.e., percent covered by impervious or partially impervious cover) and a 30-foot buffer for
activities ,with less than 24 percent built upon area by the N. C DWQ_ (These buffers are in
addition to the any other stream buffers. The stricter of the two buffers applies to these stream
channels.)
' Metla d Pr wittiulg:
Please note that new Nationwide Permits were issued by the USACE an March 19,2007- The
US.ACE Wilmington District issued revised Regional Conditions for the 2007 Nationwide
Permits on June 5, 2007- Therefore, the USACE may once againreviCW requests for impacts to

4f-.?; 1i..n, ?ir
?•nOcutll<c? S!' plan f) our office fer ? eview by one of our perrnit"ng Specialist, ,ho can best
- 11 udvise you Of the specific perinittin; needs as you progress through the planning process.
Generally, wetland impact permits are issued on a per-project basis as determined by the
USAGE. The USAGE has determined that impacts on parcels sub-divided from larger tracts are
sometimes considered to be cuz?IUiative to existing impacts for the large tract. If this is the case,
t Ien thresholds, for notification muv net apply to your project and impacts in strea rns/-,vetlarlds
rust be considered in light of e..Isting i er=nzts.
CONCLUS[OIN
T 1a?ld and strearrn delis7e._-Fin ton for the Egypt Property apt.Jra?.fxilat _el .y ( s
i;_ e ?T,?et,-?00 ac=-e
completed by S&EC on ulv 21+0. NkOT This site contains jurisdictional streams and vretland
areas that that inay recuire preconstruction authorization for impacts, depending on the size and
Mature of the. impact (i.e. road constriction, lot fill, store-rx,9ter pond construction, etc.). F rSACE
and NC DWQ verificatlDn ,f o,--r czite assessment is zeneduled a.nd ;you -vill be -ioti:ied upon its
conll?letiOT?.
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rn
_?N.'. T. wl.a; , t,, c,i) r ,'f tl .•rl !a r :.i? "i.:;11 _? 'C 1it .Il _'(i ll° , 1` I, S ?l'..J.,
czll o!Ir if - 'i "0 "Ii?C?fill'.
T e Su"-) i l )c ti . '<:. 1 cn- I ,' 1 t ,ll 1S ir, vj',Jt 1 C it
:•O'::.!4t Win; ii ll %!?llld _o lli:' \'?71f?L. 't'l'a )1:.. '19 ;t;fll :illl u llllh?eL iT:'l\'. i;] iijC 1t70'.
. I. i 1TlL', 5 ? it r ;;)` ( Ll ;mil a 3L?ti.t Zi:11i '1 .i r,t.ll \ ,I'Ir3C1,(1 CCP')).1GC, F 'I'7 `Ct.1Til; 'll'ti \'! 1' .
'` ??!11E., rli tllt??'t d i0 .:,. I't ?aTlt'.1C? .:•jlfi tl?+' f 'rlj-r-? tlt? +: Qtir 1. E.E c.?l.
As you J11ilC ? 1'or, a)-(i i111 1 t17.ii171r '.OI11 C1CV+:]l!? ilCllt. Sin Ec 43C1 51.)Ilii c;l'? C'\''ll? li)1i9 ?C r Ste (11N11 r - \
1 ?I?C1F.r111i +117 `)Ili1)!]Oil:CI?iC i. f 1?:5` C )11LL?t S&T711; if y'?u .i1rt' 111V!_]'.'E I7 ]lti)':; Ii1 Cl -'( fIi1)Cf ai16
Stream, lep"11,1 ir'ns, C1' 11'r1111e?d .?c]1 IC.c 1)LI; f)jt?]C lltt,l?}lf tf 1-L'l.1111'l.
' Sincerely, M
f.li?J11C Ur ,.'m fill D3V]Ci t)ainev
1 i T ifloglst,'1 n?r,nn:c, iltal Sc c:ntiSt Project lrlij.n?crl ?7;1j.'ollfl)r.'i?tr:i Scientist
Attacf items:
1) Wetland DefiT.ralion Report
2)1.1SGS Site vicili.ty map
31 \RCS Soil Stu°k7ev
4) Wedarid ti: Strc?nxl Ski.:tuh R:1ap
5) Agerlt "'.Whorf7,16011 T KIM
1
C_hlrlofte CreensbornOfflc.e:
'236 l.xPhi.llir CourT, Saito C 38.17-E Lawndate Drive
Corword, M. 28025 f ;renn?hprn, i,1(' 27455
Phone: (704)'720-9405 Flione: (316) 5404'234

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r`?r? (1 - r (( q( '•.i? ^ :? ?'i Lcc) J. o n Illy l?),.. ?? t r l?v 1? Jlil S?
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-u-ct1 1 ;rs as ccsc:i',crl by til arc? ec;lirrs set ii,;•th in the C ,rps i i?nr inerr5 `'+'cil :-r
(Jd .<)s7- it I£6l P tS'i; r, (11 f??U L ?T?it}i t ??CI(?C 1rlCjJC_ l? rS `.I
1 71i1Gat10t1 ?1?11U l ili.:u1 ) }`Cri ]1
;'col,. ac'ilr; C)1 'detlaIid 114:11.010anc1 ?i'CS?llCe C%f l7 j'(ll"*.) h\'t1C i-Cf_t (at701i ?i'^lC
ntiall 111 ?reu :_L.C C o iI7 J I mated n i he rra?? f
i ?'ed',vith SeUL xnnl i' t pi- k - n 1t?S r gg:1 g _pj?l"fi? i .) 1 . I Yn(?
of wetland hvdrolo`;y ?a1n(1ltl be, they exisienec of Ily(Iric soils with o:?60'ized ro<<t chi- m1Y1S in the
up })cr 12 1Jicl7CS i, t.1C G;11 ,..i()i7IC', w:lterl.c)rne depc.?7ts, clrir'? 1)nc.>, sc,c,urlllarl.s, Cil"Ii7ilcl`..•
pattcriis, regif'J1111 Jndicatorti of sail &1[llCi6011, e(c. SurfrlCC, ;'Jaters Such as iF:tCr1I1!' 1C!1't: mid
Pcrmnial mrcalu CI7311T)Cls, ponds, and bikes, which --ire also sLibJect to re,,illation b jJ the US
Art \ Corps ei'Engincers (USACJ3) as waters of the US, We're also identified. '! hcsc surface
waters may also be referrecl to Lis jurisdictional waters io iiltiicate that they arc tvitllin tl7c
' jurisdiction of the UWE. It N Important to vote t1vt %vetlonds are also classified as *,atcrs of
the US and regvilaied by tl•ity USACE lender authority of tlic Clean Water Act (33 USC.:' 1344).
S&EC's Neuse stream buffer evaluation consisted ofmunininr each feature on the site that is
sbom n on the most recent N,crsion of the US Geological survey's 7.5 1IinUte Quad-1 anglc fir
NRCS soil survey using hC-DWQ stream cvtiluation techniques.
1
G-YvCmAlLlro Offiwc:
' Chap}otte Ot3ic
236 Lc'PI]iilip Ccwrt, Suite t; ;? L?-)r La',valdalc Drive
Concord, NC 2$025 Gncnslwn3,) 27455
Phone: [phone] SLEC PT o;cct 4 `,7° 1.`?xi S Pllonc: (;3C,) 5;1t}_g2?4
.- c-... 112 ')1:, {,S:i 4lgS
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1710 C, rl<,17r1 tt UT't 111111 5
?.'.r1e?11riShcCtLC>i?.^41 strearl4 m- 'd . v.-'iurl l i??.1tL1 ti IVFrt: ;,A-,scl-vcd witli)11 tllc Lick Creek Regional
I'?,liIlputatlor? Force 11'.l lll. e83ellle'.3 ti'.(' tll,rl{?.%;4Tlate lC?'v?ii1C±?;S ace 1(??7ti ,mi flic atladicL
4?G`G'tl?nCl S?CtCh'iils3h. ?trGi111'1$ 1deJ7tl?(C"i O.il-?'1(G' ul-E !:?esci::i7ecl ?7C,lO'?':
Y?1 tii?1'd T($tur" be:,,vicen flap., Cry)-64 uYid ,O-8?.
lMartqi11al Wctland 1'catur loctwcen :flags 65A wid 6593.
Stream Feature A channel Ul"GS blUeline i.umamcd tributary to Lick. Greek.
Wetland icature between flogs 91 anci. 93 through i()OA and I03B.
Stream Featt4re L; Perowlial cbaud.
* "Wetland Feat:urc bet%veen ilags l _q.
Surface graters on this site flow into Lick Creek in the Neuse liver Bassin in Durham. County,
; 'liic:h bas ?Lt'tl CI1S57j7Cd 111 NC-1)WU's "Classification and 'zter Quality St ind 11-cis APpllcable
to Su1-facJe)Waters a1idWetlatids of North Caroline" as WS-IV .NSti,V.

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r.l;t?Sif'C:lta)i?
iPentl';e oil115c;s CtP. SZ!!1
SuIS'CR' ? lASSPtIC^4i }IS
A Perennial { Pcrcnrnztl i'e:eImiaj X/A S
}? Perennial 4'!r:m;1al T'-;tj,nir!4
- N/A
-

C -
Not shcnw;a
Int.ermittcilt
Fphcmeral
N/A i
D Not Shown Inte.rIllitwtat Epllemcral
E Intmlittcnt Perennial - NT/A
I -rezutial
1' Yuternlittent Feltermittent. -
Tntcnnittcnl N!A
i
CI Not shown ? Iz)tezxriirtean EPh--mtrai
C2 ' Nbf Shown j Ttltennittcnt i Fpli mcrtl j N; A j
II Intermittent Perennial Intermittent NIA
1 Not shown Iutertuittellt Ephemeral ;`.
i„A FieId. Guide To North. Caroldia Wctlauuls"; Department of F,nvironment, I Ieal0i and -Natural
Re-source-s januarv 1996.

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cl}'1 ? ?. t r •?t 1 71L:p 7 -1?? rC -l r ` A 'i 1`'F:11 ?ry :f1..:t-T1 ?[u
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t(' f?l :Lr) (, i ! 1C 7.5-:Pivr.C g118'iT-r gII. Ycl;(7CIi[; "'TS t.`t` 1) JI. C-. F
`fA?'i1CUltt! <'.
tllc. ?i 777"'C, C `•VI ll"?" (jJS iS S) t ?:c , ??iC'`^"> 1i',3t 8j)t)C'1r ail 1? =5` 'I i' I'1 (11 511?7)C'Ct Ot?l'}'
{'ant JctCi"_ IIIF,fic,11 by 1-)ual}TV ?i-lt)ws C71i laI
4110 r F)t 0i"J)C- I(]1IOV Mg C-,`03CIMO:S:
l } DitdhtZB I and m,7mi1',ac',-- ^17Z'C}'caJ1GeS ItheT- than I'm di {? - d .Iav:rai. Stm-Ulls;
1 -V,<!rim4fIe ponds arid lakcs that carc located cutslcli'. 11attR' +l clraina.-c ways; 0;
} Eg?hen7?•rc,1 f;;tnr1?)•,>\`a(erl strc??717s.
T-T, .'er svpl-,jv I;' 1't: tai S' )?Wes:
Features A, B, and C are mopped as a perennial streams on the U "CIS -tol)O?,Taphie c1uaclran?lc.
Those perennial streams idc)ltified oil the USGS within a classified .vater supply Avatershed
require a 100-foot buffer for new developme=nt activities with t rcatcr tha.ii 24 percent "buiit
upon" area (i.e., percent covcred by jmpcnvious or partially in-epcrviovls corer) and a 30-foot,
buffer for. activities with less than 24 percent built upon area by the NC-DWQ. (These buffers
t arc in addition. to the any other streaTn hullers. The stricter of the tvv() buffers applic's to these
stremm channe-19.)
The isolated wetImmd rules are adininistercd by the NC-DWQ and apply only to icatures that do
not possess a jurisdictional connection, as dete-imin d by the USACE. The =tiles state that
discharges to isolated, man-made ponds or isolated ditches except for those WOIHMIS OT waters'
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,d.?JIl ( ,pprotC1.111?;i{ly 6 1i Y_t lilleau- flee) •,,vuti
20, '2007, T1'li5 i E Oi.13ii1:? j?7I'i5lliCt 011i'l 517"C'i.!:•tS iii1d Ct??!? +J'E:ilti Lh t ii7Ri i'31:?'s'
r°C1i i"CC': nstalct1011 t?Uth(ir1'Gi_'tlon IOi imf?a.c'ts, df?-l',Cndill S Oll d1C .l-G`C aild 11@itvI-C 0i dic ;,J,! P" C'.
CoastractiDil, 1C+t flfl, g rl Tlib','ili{ s i ord uons.,;'uctlon, etc. I. 1. SACS and NC DlyVQ
tT aIAJ Cc1"tJ lil. 11.1.]" S1tC r1Sr;Ls5:11CJlt G i r r v -1' r j 1
I,CUItI
ined_ Folla;, in crI lcati on sl,e.tmts i<<
;CSC}7'itQ'i?' C1 C21C1C5. tllc: ilext Stcp lI1 the St.(nill] zmd `,ve'L. It land ideritiricatlon , i.-,d pt',rll,it'ir15 J)TC)C;ECSti
is to obtain a field s!.lrvc of"ourdclLic:a(iorl for formal ,••ipproval by (ho, l DACE' Upoll
COnlj lelln!; the SLIrvey, these sits; constraints may tltm be irltegratcd info planning for pi- perty
t3evc.;opm?.nt.

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_ 8781 v%/5 ficiure. 2 ?- Sail 8urvev
Prot IvlasIaL,er; L.ck eek,r;hqur:isc Creek Oul Ali, , .
' 1 ?,,,........?.. _ t'. Se11 Env3mnmcntal Cor:s;.tltar[ts, i A
David. G i i rie j? cr f lick Creek P.el onal 1;AtO F?.vn Ri g^ °d Pzl?i ,h, IdC 2i6i 4
Yutr, c?;ticn Forts: Main l?aF;B;G-B?++r)•;?t^{?4Gr-1G7
i Scale. t _ 20` ? ?Durhaan County, WC
Uat:? `+ourc:;
08/ 10/07 SE DurFt:?m C?t;uclt an?f?

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