20060659 Ver 4_401 Application_20130701

WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
14110 COMMONWEALTH DRIVE, SUITE toi
WILMINGTON, NORTH CAROLINA, 28403
(910) 256 -9277
FAX [phone]
TO: NC Division of Water Quality — 4o1 Wetlands Unit
165o Mail Service Center
Raleigh, NC 27699
WE ARE SENDING YOU
❑ Shop Drawings
❑ Copy of Letter
® Attached
❑ Prints
❑ Change order
LETTER C-F TRANS YTAL
DATE 6/28/13
1 JOB NO. 020 0018.00
ATTENTION Karen Higgins
PHONE i
gig-807-636o
RE: Woods at Umstead (DWQ Pro' #o6-o659) V
Buffer Authorization Modification PCN
020 0018.00
Buffer Modification PCN
1
6/26/13
020 ool8.00
❑ Under separate cover via
❑ Plans ❑ Samples
❑ Diskette ❑
the following items:
❑ Specifications
COPIES
DATE
NO.
DESCRIPTION
6/26/13
020 0018.00
Buffer Modification PCN
1
6/26/13
020 ool8.00
CD of PCN
THESE ARE TRANSMITTED as checked below:
® For approval ❑ Approved as submitted
❑ For your use ❑ Approved as noted
❑ As requested ❑ Returned for corrections
❑ For review and comment ❑
❑ FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US
❑ Resubmit
❑ Submit
❑ Return
_ copies for approval
copies for distribution
corrected prints
REMARKS:
COPYTO: File
SIGNED: Troy Beasley
lfenclosures are not as noted, kindly notify us at once.

WITHERS RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
June 26, 2013
NC- Division of Water Quality
401 Wetlands Unit
Attn: Ms. Karen Higgins
1650 Mail Service Center
Raleigh, North Carolina 27699
Re: Woods at Umstead — Buffer Authorization Modification Request
Previous DWQ Project # 06 -0659, Ver.3
W &R Project #02050018.00
Dear Ms. Higgins;
On behalf of Trenton Road, LLC, we are requesting issuance of a revised Buffer Authorization
for the Woods at Umstead project as a result of modifications to the site plan that have resulted
in the elimination of a sewer stream crossing, and additional buffer impacts from additional
bypass channels.
Please note that the elimination of the sewer crossing also resulted in the minimization of 20 If
of temporary stream impacts as well. The impact tables in the attached PCN have been revised
to document the reduction of temporary stream impacts. However, this is for notification
purposes only, and we are not requesting a revised 401 WQC.
The project is ±33 acres in size and is located southeast of the intersection of Trenton Road and
Trinity Farms Road in Raleigh, Wake County (Latitude: 35.823981 °N; Longitude: -
78.737636 °W). The project is located in the Neuse River basin and onsite waters drain to
Richland Creek. The Water Quality Classification for Richland Creek is C; NSW and the Stream
Index Number is: 27- 33 -11. The cataloging unit for the site is 03020201.
Proiect Histo
DWQ issued a 401 WQC and Buffer Authorization (06 -0659, Ver. 3) for the proposed project in
April 2012, authorizing 80 If of permanent stream impacts, 60 If of temporary stream impacts,
9,942 sq ft of permanent buffer impacts and 7,080 sq ft or temporary buffer impacts for
construction of four driveway crossings, three sewer crossings and a bypass channel.
NCDWQ issued a Buffer Determination for the project site in August of 2005 (DWQ EXP:05-
1496). As a result of the Permit Extension Act, the Buffer Determination is still valid.
A Jurisdictional Determination was issued by the Corps of Engineers for the project site on in
April 2012 in conjunction with the issuance of the NWP 29 (AID# 2012 - 00609), which is still
valid. A copy of the Corps NWP 29 has been provided as an Appendix.
1410 Commonwealth Drive I Suite 1011 Wilmington, NC 28403 1 tel: [phone] fax: [phone]
www.withersravene[.com I License No. C -0832

WITHERS II RAVEN EL
ENGINEERS I PLANNERS I SURVEYOR5
When the proposed project was previously permitted, the eastern phase of the project was
designed with only 4 lots as a result of market demand. By only having 4 lots, the eastern
phase was considered low density phase which did not require stormwater management. As a
result of an increase in the real estate market demands in this area of Raleigh, the site plan has
been redesigned to return to increase the eastern phase to 9 lots. The increase to 9 lots in the
eastern phase increases the impervious area to high density, which will require stormwater
management. As a result of the stormwater management requirement in the eastern phase,
two bypass channels (Swale Bypass # 2 & #3) are now required, which requires issuance of a
revised Buffer Authorization.
Also, the sewer design has been revised which has resulted in the elimination of the previously
permitted Sewer #3 impact. The elimination of the Sewer #3 crossing has resulted in the
avoidance of 20 If of temporary stream impacts, as well as 1,514 sq ft of permanent Zone 1
impacts and 1,187 sq ft of permanent Zone 2 impacts.
The Impact Tables in the attached PCN have been revised to reflect to elimination of the
previously permitted Sewer # 3 crossing, and addition of the two additional bypass channels
(Swale Bypass #2 & #3).
Proposed Impacts
The currently proposed impacts 16,769 sq ft of riparian buffer impacts (Zone 1: 10,469 sq ft;
Zone 2: 6,300 sq ft).
Avoidance and Minimization
Prior to site plan design, the applicant requested that a detailed wetland delineation be
conducted so that impacts to wetlands and "waters" could be minimized.
The proposed impacts have been minimized to only those necessary to provide access to
individual lots located across the buffered stream and for construction of the internal sewer
system. The proposed driveways and sewer crossings has been designed at nearly
perpendicular angles to minimize stream and buffer impacts. Also, the revision of the sewer
design has eliminated a third sewer crossing, which has resulted in avoidance of 20 If of
temporary stream impacts, as well as 1,514 sq ft of permanent Zone 1 impacts and 1,187 sq ft
of permanent Zone 2 impacts
Mitigation
Because the proposed permanent stream impacts are less than 150 If, mitigation is not
proposed for stream impacts.
WITHERS RAVENEL Page 2 of 3
ENGINEERS I PLANNERS I SURVEYORS

WITHERS II RAVEN EL
ENGINEERS I PLANNERS I SURVEYOR5
Each proposed driveway crossing is 20 If in width and will disturb less than 2,500 sq ft, and are
classified as "Exempt" in the NRB Table of Uses. Therefore, mitigation is not required for these
impacts.
The two proposed sewer crossings are 20 If in width and will have a 20 If permanent
maintenance corridor, which is classified as "Allowable" in the NRB Table of Uses. Therefore,
buffer mitigation is not required for these impacts.
The three proposed bypass channels are classified as "Allowable" in the NRB Table of Uses
and does not require mitigation.
Diffuse Flow
Diffuse flow will be provided through level spreaders and vegetated filter strips. The
construction plans, BMP Supplement Forms and O &M Agreements have been provided as an
Appendix.
The current request is for 80 If of permanent stream impacts, 40 If of temporary stream
impacts, and 16,769 sq ft of riparian buffer impacts (see the attached maps and PCN for
details).
Please feel free to call if you have questions or require additional information.
Sincerely,
Troy Beasley
Environmental Scientist
Attachments:
• PCN Form
• Agent Authorization
• List of Parcel Identification Numbers (PIN)
• USGS Quad Map
• Wake County Soil Survey
• Previously Issued 401 WQC & Buffer Authorization & Approved Impact Plans
• Previously Issued 404 NWP 29
• Diffuse Flow Information & O &M Agreements
• Impact Maps
WITHERS RAVENEL Page 3 of 3
ENGINEERS I PLANNERS I SURVEYORS

o�oF w a rF9o�
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Page 1 of 11
PCN Form — Version 1.3 December 10, 2008 Version
Pre - Construction Notification PCN Form
A. Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the
Corps:
®Section 404 Permit El Section 10 Permit
1 b.
Specify Nationwide Permit (NWP) number: 29 or General Permit (GP) number:
1 c.
Has the NWP or GP number been verified by the Corps?
❑ Yes
® No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ® Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ 401
Certification:
❑ Yes ® No
For the record only for Corps Permit:
❑ Yes ® No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu
fee program.
❑ Yes
® No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 In
below.
❑ Yes
® No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes
® No
2.
Project Information
2a.
Name of project:
Woods at Umstead
2b.
County:
Wake County
2c.
Nearest municipality / town:
Raleigh
2d.
Subdivision name:
2e.
NCDOT only, T.I.P. or state
project no:
3.
Owner Information
3a.
Name(s) on Recorded Deed:
Trenton Road, LLC
3b.
Deed Book and Page No.
DB: 11588; Page: 2219
3c.
Responsible Party (for LLC if
applicable):
Julian Rawls
3d.
Street address:
100 Weston Estates Way
3e.
City, state, zip:
Cary, NC 27513
3f.
Telephone no.:
919 - 481 -3000
3g.
Fax no.:
3h.
Email address:
Page 1 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent ❑ Other, specify:
4b.
Name:
4c.
Business name
(if applicable):
4d.
Street address:
4e.
City, state, zip:
4f.
Telephone no.:
4g.
Fax no.:
4h.
Email address:
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Troy Beasley
5b.
Business name
(if applicable):
Withers and Ravenel
5c.
Street address:
1410 Commonwealth Drive, Suite 101
5d.
City, state, zip:
Wilmington, NC 28403
5e.
Telephone no.:
910 - 256 -9277
5f.
Fax no.:
910 - 256 -2584
5g.
Email address:
tbeasley @withersravenel.com
Page 2 of 11
PCN Form — Version 1.3 December 10, 2008 Version

B. Project Information and Prior Project History
1. Property Identification
1 a. Property identification no. (tax PIN or parcel ID):
See Project PIN #s Appendix
1 b. Site coordinates (in decimal degrees):
Latitude: 35.823981'N Longitude: - 78.737636 °W
(DD.DDDDDD) (- DD.DDDDDD)
1 c. Property size:
±33 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
Richland Creek
proposed project:
2b. Water Quality Classification of nearest receiving water:
C;NSW Stream Index #27.33.11
2c. River basin:
Neuse HUC 03020201
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The project site currently consists of undeveloped woodlands. The surrounding land use consists of residential
development.
3b. List the total estimated acreage of all existing wetlands on the property:
0.093 acres
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
±3400 If
3d. Explain the purpose of the proposed project:
The purpose of the proposed project is to construct a residential subdivision. The proposed project was previously
permitted by DWQ (06- 06590) and the Corps (AID 2012 - 00609) in 2012.
3e. Describe the overall project in detail, including the type of equipment to be used:
The project consists of the construction of a residential subdivision and associated infrastructure. When the proposed project
was previously permitted, the eastern phase of the project was designed with only 4 lots as a result of market demand. By
only having 4 lots, the eastern phase was considered low density phase which did not require stormwater management. As a
result of an increase in the real estate market demands in this area of Raleigh, the site plan has been redesigned to return to
increase the eastern phase to 9 lots. The increase to 9 lots in the eastern phase increases the impervious area to high
density, which will require stormwater management. As a result of the stormwater management requirement in the eastern
phase, two bypass channels (Swale Bypass # 2 & #3) are now required, which requires issuance of a revised Buffer
Authorization.
Also, the sewer design has been revised which has resulted in the elimination of the previously permitted Sewer #3 impact.
The elimination of the Sewer #3 crossing has resulted in the avoidance of 20 If of temporary stream impacts, as well as 1,514
sq ft of permanent Zone 1 impacts and 1,187 sq ft of permanent Zone 2 impacts.
The Impact Tables in the attached PCN have been revised to reflect to elimination of the previously permitted Sewer # 3
crossing, and addition of the two additional bypass channels (Swale Bypass #2 & #3).
Standard commercial construction equipment will be used to construct the project.
Page 3 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
®Yes El No El Unknown
project (including all prior phases) in the past?
Comments:
4b. If the Corps made the jurisdictional determination, what type
El Preliminary ®Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas?
Agency /Consultant Company: Withers & Ravenel
Name (if known):
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
Corps of Engineers approved the wetland delineation for the project in conjunction with the issuance of the NWP 29 (AID
2012 - 00609) in April 2012, which is still valid.
NC DWQ issued a Buffer Determination for the project, which was previously known as Trenton Road Subdivision, in
August of 2005 (DWQ Project # EXP: 05- 1496). As a result of the Permit Extension Act, the Buffer Determination is still
valid.
5. Project History
5a. Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
DWQ issued a 401 WQC and Buffer Authorization for the project on April 4t", 2012 (06 -0659, Ver. 3) for the proposed
project. The 401 WQC and Buffer Authorization is still valid, but a revision to the site plan to include two additional
bypass swales and the elimination of a third sewer crossing has resulted in the need to a modification to the 401 WQC
and buffer authorization.
The Corps issued a NWP issued a NWP 29 (AID 2012 - 00609) for the proposed project on April 16, 2012, which is still
valid. Since the elimination of the third sewer crossing will result in minimization of temporary stream impacts, the NWP
29 does not need to be formally modified. However, the Corps will be notified through a letter of the revision to the site
plan design.
6. Future Project Plans
6a. Is this a phased project?
® Yes ❑ No
6b. If yes, explain.
The proposed project has been constructed in Phases, but the impacts are being permitted for the entire project as a
single and complete project.
Page 4 of 11
PCN Form — Version 1.3 December 10, 2008 Version

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ® Streams - tributaries ® Buffers
❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
2b.
2c.
2d.
2e.
2f.
Wetland impact
Type of jurisdiction
number —
Type of impact
Type of wetland
Forested
(Corps - 404, 10
Area of impact
Permanent (P) or
(if known)
DWQ — non -404, other)
(acres)
Temporary (T)
W1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
2g. Total wetland impacts
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
3b.
3c.
3d.
3e.
3f.
3g.
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number -
(PER) or
(Corps - 404, 10
stream
length
Permanent (P) or
intermittent
DWQ — non -404,
width
(linear
Temporary (T)
(INT)?
other)
(feet)
feet)
Driveway A
Culvert Crossing
UT to Richland
® PER
® Corps
2'
20 If
® P ❑ T
for Driveway
Creek
❑ INT
® DWQ
Driveway B
Culvert Crossing
UT to Richland
® PER
® Corps
2'
20 If
® P ❑ T
for Driveway
Creek
❑ INT
® DWQ
Driveway C
Culvert Crossing
UT to Richland
® PER
® Corps
2'
20 If
® P ❑ T
for Driveway
Creek
❑ INT
® DWQ
Driveway D
Culvert Crossing
UT to Richland
® PER
® Corps
2'
20 If
® P ❑ T
for Driveway
Creek
❑ INT
® DWQ
Total Permanent Impacts
80 If
Sewer 1
Sewer Crossing
UT to Richland
® PER
® Corps
2'
20 If
F1 ®T
Creek
F1 INT
® DWQ
Sewer 2
Sewer Crossing
UT to Richland
® PER
® Corps
2'
20 If
F1 ®T
Creek
F1 INT
® DWQ
Total Temporary Impacts
40 If
3h. Total stream and tributary impacts
120 If
3i. Comments:
Page 5 of 11
PCN Form — Version 1.3 December 10, 2008 Version

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a.
Open water
impact number —
Permanent (P)
or Temporary (T)
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody type
4e.
Area of impact (acres)
01 ❑P ❑T
02 ❑P ❑T
03 ❑P ❑T
04 ❑P ❑T
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a.
Pond ID
number
5b.
Proposed use or purpose
of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
K Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
Page 6 of 11
PCN Form — Version 1.3 December 10, 2008 Version

6. Buffer Impacts (for DWQ)
If project will impact a protected riparian
buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a.
® Neuse ❑ Tar - Pamlico ❑ Other:
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number —
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P)
for
Stream name
mitigation
(square feet)
(square feet)
or Temporary (T)
impact
required?
Driveway A
®P ❑T
Driveway
UT to Richland Creek
❑ Yes
®No
1,320 sq ft
808 sq ft
Driveway B
®P ❑T
Driveway
UT to Richland Creek
❑ Yes
®No
1,326 sq ft
814 sq ft
Driveway C
®P ❑T
Driveway
UT to Richland Creek
❑ Yes
®No
1,331 sq ft
813 sq ft
Driveway D
®P ❑T
Driveway
UT to Richland Creek
❑ Yes
®No
1,486 sq ft
925 sq ft
Sewer 1
® P ❑ T
Sewer
Crossing
UT to Richland Creek
❑ Yes
® No
1,323 sq ft
804 sq ft
Sewer 2
® P ❑ T
Sewer
Crossing
UT to Richland Creek
❑ Yes
® No
1,396 sq ft
856 sq ft
Bypass #1
El P T
Bypass
Channel
UT to Richland Creek
®Nos
715 sq ft
404 sq ft
Bypass #2
El P T
Bypass
Channel
UT to Richland Creek
® Yes s
787 sq ft
404 sq ft
Bypass #3
El P T
Bypass
Channel
UT to Richland Creek
® Yes s
785 sq ft
472 sq ft
6h. Total buffer impacts
10,469 sq ft
6,300 sq ft
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Prior to site plan design, the applicant
requested that a detailed wetland delineation be conducted so that impacts to wetlands
and "waters" could be minimized.
The proposed impacts have been minimized
to only those necessary to provide access to individual lots located across the
buffered stream and for construction of the internal sewer system. The proposed driveways and sewer crossings has been
designed at nearly perpendicular angles
to minimize stream and buffer impacts.
Also, the elimination of the previously
permitted third sewer crossing (Sewer #3) has resulted in the avoidance of 20 If of
temporary stream impacts, as well as
1,514 sq ft of permanent Zone 1 impacts and 1,187 sq ft of permanent Zone 2 impacts.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Proposed driveway and sewer crossings have been designed to cross the stream at nearly perpendicular angles to minimize
impacts to streams and buffers.
Page 7 of 11
PCN Form — Version 1.3 December 10, 2008 Version

2.
Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a.
Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ® No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c.
If yes, which mitigation option will be used for this project?
❑ Mitigation bank
❑ Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3.
Complete if Using a Mitigation Bank
3a.
Name of Mitigation Bank:
3b.
Credits Purchased (attach receipt and letter)
Type
Quantity
3c.
Comments:
4.
Complete if Making a Payment to In -lieu Fee Program
4a.
Approval letter from in -lieu fee program is attached.
❑ Yes
4b.
Stream mitigation requested:
linear feet
4c.
If using stream mitigation, stream temperature:
❑ warm ❑ cool ❑cold
4d.
Buffer mitigation requested (DWQ only):
square feet
4e.
Riparian wetland mitigation requested:
acres
4f.
Non - riparian wetland mitigation requested:
acres
4g.
Coastal (tidal) wetland mitigation requested:
acres
4h.
Comments:
5.
Complete if Using a Permittee Responsible Mitigation Plan
5a.
If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
6.
Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes ® No
6b.
If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g.
If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h.
Comments:
Page 8of11
PCN Form — Version 1.3 December 10, 2008 Version

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1 a.
Does the project include or is it adjacent to protected riparian buffers identified
® Yes ❑ No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
® Yes ❑ No
Comments:
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
30%
2b.
Does this project require a Stormwater Management Plan?
® Yes ❑ No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
Stormwater management will be provided through a dry detention basin and vegetated
filter strips. The Stormwater
Management Plan is being reviewed by the City of Raleigh.
® Certified Local Government
2e.
Who will be responsible for the review of the Stormwater Management Plan?
❑ DWQ Stormwater Program
❑ DWQ 401 Unit
3.
Certified Local Government Stormwater Review
3a.
In which local government's jurisdiction is this project?
City of Raleigh
® Phase II
❑ NSW
3b.
Which of the following locally - implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ® No
attached?
A copy
of the City of Raleigh Stormwater Management Plan approval will be provided
upon issuance.
4.
DWQ Stormwater Program Review
❑ Coastal counties
❑ HQW
4a.
Which of the following state - implemented stormwater management programs apply
❑ ORW
(check all that apply):
❑ Session Law 2006 -246
❑ Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
attached?
❑ Yes ❑ No
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 9 of 11
PCN Form — Version 1.3 December 10, 2008 Version

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
1 a.
Does the project involve an expenditure of public (federal /state /local) funds or the
❑ Yes
® No
use of public (federal /state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
❑ No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes
❑ No
letter.)
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
❑ Yes
® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b.
Is this an after - the -fact permit application?
❑ Yes
® No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3.
Cumulative Impacts (DWQ Requirement)
3a.
Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes
® No
additional development, which could impact nearby downstream water quality?
3b.
If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
The proposed project is located within a heavily developed area of Wake County and is not anticipated
to be a catalyst for
additional development that could impact downstream water quality.
4.
Sewage Disposal (DWQ Requirement)
4a.
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.
City of Raleigh sanitary sewer
Page 10 of 11
PCN Form — Version 1.3 December 10, 2008 Version

5.
Endangered Species and Designated Critical Habitat (Corps Requirement)
5a.
Will this project occur in or near an area with federally protected species or
❑ Yes ® No
habitat?
5b.
Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ® No
impacts?
E] Raleigh
5c.
If yes, indicate the USFWS Field Office you have contacted.
❑ Asheville
5d.
What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
W &R reviewed the NC OneMap Viewer GIS website, located at http: / /www.nconemap.net/Default.aspx ?tabid =286, to
identify if any potential occurrence of endangered species on or near the proposed project. The review of the GIS
database did not identify any recent occurrences of endangered species or critical habitat on the subject property or
within 1.0 miles of the project. Also, there was no evidence of the presence of endangered species or critical habitat on
or near the vicinity of the project and the project was previously permitted.
6.
Essential Fish Habitat (Corps Requirement)
6a.
Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ® No
6b.
What data sources did you use to determine whether your site would impact Essential Fish Habitat?
There are no waters in Wake County designated as EFH.
7.
Historic or Prehistoric Cultural Resources (Corps Requirement)
7a.
Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑ Yes ® No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b.
What data sources did you use to determine whether your site would impact historic or archeological resources?
The project was previously permitted which documents the lack of historic or archeological resources on the site.
8. Flood Zone Designation (Corps Requirement)
8a.
Will this project occur in a FEMA- designated 100 -year floodplain?
❑ Yes ® No
8b.
If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? www.ncfloodmaps.com
Troy Beasley
—�-�
Withers & Ravenel
6/26/13
Authorized Agent
Date
Applicant /Agent's Signature
Applicant /Agent's Printed Name
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
Page 11 of 11
PCN Form - Version 1.3 December 10, 2008 Version

AGENT AUTHORIZATION

WITHERS,, u RAVEN EL
ENGINEERS I PLANNERS SURVEYORS
AUTHORITY FOR APPOINTMENT OF AGENT
The undersigned owner(s) Trenton Road. LLC do(es) hereby appoint Troy Beasley / Withers &
Ravenel. Inc. as his, her, or it's agent for the purpose of petitioning the appropriate local, state
and federal environmental regulatory agencies (US Army Corps of Engineers, NC Division of
Water Quality, NC Division of Coastal Management, etc.) for: a) review and approval of the
jurisdictional boundaries of onsite jurisdictional areas (wetlands, surface waters, etc.) and /or; b)
preparation and submittal of appropriate environmental permit applications/requests for the
Woods at Umstead project.
The owner does hereby authorize that said agent has the authority to do the following acts on
behalf of the owner:
(1) To submit appropriate requests/applications and the required supplemental
materials;
(2) To attend meetings to give representation on behalf of the Client.
(3) To authorize access to subject property for the purpose of environmental
review by appropriate regulatory agencies.
This authorization shall continue in effect until completion of the contracted task or termination by
the property owner.
Agent's Name, Address & Telephone
Troy Beasley / Withers & Ravenel. Inc.
1410. Commonwealth Drive, Suite 101
Wilminaton, NC 28403
Date: /
Signature of Owner(s):
(Name - Print) /,-," (title)
(signature) �
Mailing Address
<��- c �7 5—Z!
City t� State Zip
111 MacKenan Drive I Cary, NC 275111 tel.: [phone] fax: [phone] www.withersravenel.com I License No. C -0832
1410 Commonwealth Drive I Suite 1011 Wilmington, NC 28403 1 tel: [phone] fax: [phone]
7011 Albert Pick Road I Suite G I Greensboro, NC 27409 1 tel: [phone] fax: [phone]

LIST OF PARCEL IDENTIFICATION NUMBERS (PIN)

Project Parcel Identification Numbers (PIN)
0775754854
0775754700
0775753526
0775752466
0775752317
0775751278
0775750197
0775740958
0775742923
0775743965
0775753194
0775754216
0775754365
0775755414
0775755680
0775756575
0775757618
0775756804
0775756301
0775755197
0775745958
0775747922
0775759010
0775759129
0775758248
0775758328
0775757479
0775841887
0775853011
0775845919
0775846946
0775847985
0775849924
0775941929
0775943925
0775943769

USGS QUAD MAP
WAKE COUNTY SOIL SURVEY

r - C GRAPHIC SCALE
Veo zso soo
• ,� {� +� 1 inch = 500 ft.
��.
L
4 � "
t
ryry _
1 m Ce
t
Co F
n ■■ 1
�gc 4 is f
i a 13 a �
Co
WOODS AT ULMSTEAD WAKE CO. SOIL SURVEY WITHERS RAVENEL
SHEETS 37 & 47 IN91NIlRS i PLANNERS 1 lux Yl YGRS
JJ01 %VAkL COON IY NORTH CAROLMA

PREVIOUSLY ISSUED 401 WQC &
BUFFER AUTHORIZATION

w
WDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Trenton Road, LLC
Attn: Julian Rawls
100 Weston Estates Way
Cary, NC 27513
Division of Water Quality
Charles Wakild, PE
Director
April 4, 2012
Subject Property: Woods at Umstead
Richlands Creek [030402, 27- 33 -11, C; NSW]
Dee Freeman
Secretary
DWQ Project # 06 -0659 v.3
Wake County
Approval of 401 Water Quality Certification and Authorization Certificate per the Neuse River Buffer
Protection Rules (15A NCAC 2B .0233) with Additional Conditions
Dear Sir of Madam:
You have our approval, in accordance with the attached conditions and those listed below, to fill or otherwise
impact 80 linear feet of perennial stream channel (permanent impacts), 60 linear feet of perennial stream channel
(temporary impacts), 6,178 square feet of Zone I Neuse River basin protected riparian buffer (permanent
impacts), 4,233 square feet of Zone 1 Neuse River basin protected riparian buffer (temporary impacts), 3,764
square feet of Zone 2 Neuse River basin protected riparian buffer (permanent impacts), and 2,847 square feet of
Zone 2 Neuse basin protected riparian buffer (temporary impacts) for a residential subdivision, as described in
your application received by the Division of Water Quality (DWQ) on February 2, 2012 (dated January 31, 2012)
and additional information received on March 7, 2012 and March 30, 2012. After reviewing your application, we
have decided that the impacts are covered by General Water Quality Certification Number(s) 3821 (GC3821),
The Certification(s) allows you to use Nationwide Permit(s) N W29 when issued by the US Army Corps of
Engineers (USACE). This letter shall also act as your approved Authorization Certificate for impacts to the
Protected riparian buffers per 15A NCAC 213 .0233. In addition, you should obtain or otherwise comply with any
other required federal, state or local permits before you go ahead with your project including (but not limited to)
Erosion and Sediment Control, and Non - discharge regulations. Also, this approval to proceed with your
proposed impacts or to conduct impacts to waters as depicted in your application shall expire upon
expiration of the 404 Permit.
This approval is for the purpose and design that you described in your application. If you change your project,
you must notify us and you may be required to send us a new application. If the property is sold, the new owner
must be given a copy of this Certification: and approval letter and is thereby responsible for complying with all
conditions. If total fills for this project (now or in the future) exceed one acre of wetland or 150 linear feet of
stream, compensatory mitigation may be required as described in 15A NCAC 2H.0506 (h). This approval
requires you to follow the conditions listed in the attached certification and any additional conditions listed
below.
1V�arthCarolina
Naturally
North Carolina Division of Water Quality Raleigh Regional office Surface Water Protection Phone [phone] Customer Service
Internet: www- ncwaterquatity.org 1628 Mail Service Center Raleigh, NC 27899 -1628 FAX [phone]
An Eqval Opportunity /Affirmative Action Employer — 50% Recycled /10% Post Consumer Paper

Page 2
'r'he Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general conditions of
this Certification (or Isolated Wetland Permit) are met. No other impacts are approved including
incidental and/or temporary impacts:
YJa of lm pact
Amount Approved Units
Plan Location or Reference
Stream - perennial
80 (linear feet) permanent impact
PCN page 5 of I 1
Stream - perennial
60 (linear feeQternporary impact
PCN page 5 of I I
Buffers Zone 1
6,178 (square AO-permanent impact
PCN pag e 7 of I I
Buffers Zone 1
4,233 (square ft.) temporary impact
PCN page 7 of I I
Buffers Gone 2
3,764 (square ft.) pernianent impact
PCN pa&e 7 of I 1
Buffers Zone 2
2.847 (square ft.) temporary impact
PCN page 7 of I 1
No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the
footprint of the impacts depicted in the Pre- Construction Notification. All construction activities,
including the design, installation, operation, and maintenance of sediment and erosion control Best
Management Practices, shall be performed so that no violations of state water quality standards, statutes,
or rules occur.
3. Erosion and sediment control practices must be in full compliance with all specifications governing the proper
design, installation and operation and maintenance of such Best Management Practices in order to protect
surface waters standards:
a. The erosion and sediment control measures for the project must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Sediment and Erosion
Control Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control measures
must be such that they equal, or exceed, the requirements specified in the most recent version of the
North Carolina Sediment and Erosion Control Manual. The devices shall be maintained on all
construction sites, borrow sites, and waste pile (spoil) projects, including contractor -owned or leased
borrow pits associated with the project.
c. Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
4. Sediment and Erosion Control Measures
Sediment and erosion control measures shall not be placed in wetlands or waters without prior approval
from the Division. If placement of sediment and erosion control devices in wetlands and waters is
unavoidable, design and placement of temporary erosion control measures shall not be conducted in a
manner that may result in dis- equilibrium of wetlands or stream beds or banks, adjacent to or upstream
and down stream of the above structures. All sediment and erosion control devices shall be removed and
the natural grade restored within two (2) months of the date that the Division of Land Resources or locally
delegated program has released the project.

Page 3
Diffuse Flow Plan Approval
The diffuse flow plan approved by this office consists of one level spreader and engineered vegetated
filter strip and all associated stormwater conveyances, the grading and drainage patterns depicted on plan
sheets dated January 31, 2012. No changes to the level spreader - engineered filter strip shall be made
without written authorization from DWQ. The diffuse flow devices shall have maintenance access and at
least a 10 -foot drainage easement on each side to allow for the ability to maintain the structures, and to
perform corrective actions. The stormwater easements shall be recorded to provide protection of the
structures from potential alterations by future property owners.
The approved diffuse flow must be maintained in perpetuity in accordance with LS -VFS operation and
maintenance (O & M) agreements signed by Mr. Julian W, Rawl (Manager) on January 24, 2012. The O
& M agreements must transfer with the sale of the property or transfer of ownership /responsibility for the
BMP facilities. DWQ must be notified promptly of every transfer.
6. Stormwater Management Plan (SMP) Approval Required
Please provide one copy of the approved SMP, including plan details on full -sized plan sheets, with proof
of the City of Raleigh's approval. The approved SMP must be submitted to the DWQ WeBSCaPe Unit
before any impacts authorized in this certification occur. The following requirements also apply:
The approved SMP must be constructed and operational before any permanent building or other
structure is occupied at the site.
The approved SMP as well as drainage patterns must be maintained in perpetuity.
The SMP may not be modified without prior written authorization from the City of Raleigh. A copy
of the approval letter and the modified SMP must be submitted to the DWQ WeBSCaPe Unit prior to
the commencement of the modifications.
Protective Fencing
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved under this authorization shall be clearly marked with orange warning fencing (or
similar high visibility material) for the areas that have been approved to infringe within the buffer,
wetland or water prior to any Iand disturbing activities to ensure compliance with 15 NCAC 2H, Section
.0500.
S. Notification of Project Commencement
Please notify DWQ (Lauren Witherspoon at (914) 791 -4251 or lauren.witherspoon (&,ncdenr.gov) of the
proposed start date of the project,
9. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer
Rules, and any subsequent modifications, the applicant is required to return the attached certificate of
completion to the Wetlands, Buffers, Stormwater, Compliance and Permitting Unit (WeBSCaPe), North
Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699 -1650.
Violations of any condition herein set forth may result in revocation of this Certification and may result in
criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct impacts to
waters as depicted in your application and as authorized by this Certification, shall expire upon expiration of the
404 or LAMA Permit.
If you wish to contest any statement in the attached Certification you must file a petition for an administrative
hearing. You may obtain the petition form from the Office of Administrative Hearings. You must file the

Page 4
petition with the Office of Administrative Hearings within sixty (60) days of receipt of this notice. A petition is
considered filed when it is received in the Office of Administrative Hearings during normal office hours. The
Office of Administrative Hearings accepts filings Monday through Friday between the hours of 8:00am and
5:00pm, except for official state holidays. The original and one (1) copy of the petition must be riled with the
Office of Administrative Hearings.
The petition may be faxed - provided the original and one copy of the document is received by the Office of
Administrative Hearings within five (5) business days following the faxed transmission.
The mailing address for the Office of Administrative Hearings is:
Office of Administrative Hearings
6714 Mail Service Center
Raleigh, NC 27699 -6714
Telephone: (919)- 431 -3000, Facsimile: (919)- 431 -3100
A copy of the petition must also be served on DEN R as follows:
Ms. Mary Penny Thompson, General Counsel
Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, NC 27699 -1601
Unless such a petition is filed, this Certification shall be final and binding.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and
the Neuse River basin riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any
questions, please telephone Lauren Witherspoon, at 919 - 791 -4251.
rely,
Dannv Smith
Surface Water Protection Section Supervisor
Raleigh Regional Office
Enclosures: GC 3821
Certificate of Completion
cc: DWQ Central Office — WeBSCaPe — 1650 Mail Service Center
RRO File Copy
Troy Beasley — Withers and Ravenel, 1410 Commonwealth Drive, Suite 101, Wilmington, NC 28403
Filename: 06 -0659 v.3 —Woods at Umstead_40]_NBR Appmva

I
Ra'4 ❑f;
MAT EET 1$
MATCH VIEW 1
dqa
��
/
�a' I
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6
I
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PROPOSED BUFFER AND STREAM IMPACTS
IMPACT LOCATION
BUFFER
�'
-moo-
ZONE 2
(SF)
(AC)
(SF) (AC)
(LF)
DRIVEWAY A
1,320
0.030
808 0.019
20 P
D E4VAY
M�'��1~' ACT 'L
r -S€-VIJ�
.�� MFAfl
C�RIVI: nti
I
WF1'L1iN0
DRIVEWAY C
L
FM
PROPOSED BUFFER AND STREAM IMPACTS
IMPACT LOCATION
BUFFER
ISTREAM
ZONE 1
ZONE 2
(SF)
(AC)
(SF) (AC)
(LF)
DRIVEWAY A
1,320
0.030
808 0.019
20 P
DRIVEWAY B
1,326
0.030
814 0.019
20 P
DRIVEWAY C
1,331
0.030
813 0.019
20 P
DRIVEWAY D
1,486
0.030
925 0.019
20 P
SEWER 1
1,323
0.030
804 0.018
20T
SEWER 2
1,396
0.032
856 0.020
20T
SEWER 3
1,514
0.035
1,187 0.027
20-r
SWALE AT BYPASS
715
0 016
404 0 009
-
10,4111
0.2341
6,61 TT 0150
140
��:,��.� �•' ,C� it
A
4
1 '
SEE
7---z-
SITE
DATA
DEVELOPMENT NAME:
LOCATION:
PROPOSED USE:
PIN #:
ZONING DISTRICT:
PARCEL SIZE:
# UNITS ALLOWED:
# UNITS PROPOSED:
AVERAGE LOT SIZE:
INSIDE FALLS LAKE:
INSIDE FLOOD HAZARD:
THE WOODS AT UMSTEAD
3308 TRENTON ROAD
SINGLE - FAMILY RESIDENTIAL
0775.02-75-5892.
0775.02-75-5370,
0775.02-75-1253
0775.16-94-0819
R -4 CUD, R -2 MPOD
32.99 AC.
128
35
36,868 SF
NO
NO GRAPHIC SCALE
150 0 75 150 300
I
1 inch = 150 ft.
WETLAND AREA
ZONE 1
NRB IMPACTS
ZONE 2
NRB IMPACTS
NOTES:
1. PIPES WILL BE BURIED
1' BELOW THE INVERT OF
EXISTING STREAM BED.
2. NO RIP RAP PLACED BELOW
NORMAL WATER LEVEL
1
}
II
IAP 3 i
I
Y _
!—. ,
�20NE X
�zvae ae
zoNS x � � 1 f ,j . .--'s !/ �� '�. ' •1,,� !
f ,J / � �= �!�_ ;•� � �E1JER /�' ' •! % /� /fr✓� /f�! ' f j 1�� � / /f! ! ffj!/
STREAhE
r� - ✓ \ 3e
SWAGE �•.-.`-` ,.1 , \ -s.o- — _ss°� ` f
+ BYPASS
~ i IMPACT
12 's t+ _ f J �0� Q / — -tee- -L /. f
IE — _ - -310-- =7
1 ` C ,pppri DRIVE -
''•''°' THE WOODS AT UMSTEAD
TRENTON ROAD LLC
IMPACT MAP
WITHERS &- RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
M.x l:.nan Dnr Gry, r:onh Gmlira Dill lik— A-1340 f- :919407 -8 --h-0
0cool
I

L
rvr "IRB
ZON ` /
NRB
ZO
DRIVEVV�\�-I— —
IT771ACT 'A' \
r
SEWERr" �
� IM',ACT '1' ��
\
I
I
\ � I
E. I. P.
go — —
— 3
----- �. - - -- �— \ �, — f
Ilk
—/ \ \� ♦ \ O
\ 60\
�0� v > _
----------- - - - - -- _
370
IMPACT SUMMARY
DRIVEWAY 'A'
ZONE 1 NRB IMPACTS: 1,320 SF
ZONE 2 NRB IMPACTS: 808 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'B'
ZONE 1 NRB IMPACTS: 1,326 SF
ZONE 2 NRB IMPACTS: 814 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'C'
ZONE 1 NRB IMPACTS: 1,331 SF
ZONE 2 NRB IMPACTS: 813 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'D'
ZONE 1 NRB IMPACTS: 1,486 SF
ZONE 2 NRB IMPACTS: 925 SF
STREAM IMPACTS: 20 LF (PERMANENT)
SEWER '1'
ZONE 1 NRB IMPACTS: 1,323 SF
ZONE 2 NRB IMPACTS: 804 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
SEWER '2'
ZONE 1 NRB IMPACTS: 1,396 SF
ZONE 2 NRB IMPACTS: 856 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
NOTES:
1. PIPES WILL BE BURIED
1' BELOW THE INVERT OF
EXISTING STREAM BED.
2. NO RIP RAP PLACED BELOW
NORMAL WATER LEVEL
GRAPHIC SCALE
50 0 25 50 10C
1 inch = 50 ft.
RCS'' °° °�`e B THE WOODS AT UMSTEAD
WdcR ' • = 5 °� WITHERS &- RAV E N E L °'° "°
a� -R ° 12-12 TRENTON ROAD LLC IMPACT MAP #2 g2
--d By I i °e" °. ENGINEERS I PLANNERS I SURVEYORS
CM° 2.Wli Ralei h Wake Count North Carolina " °nh�°���°°27s„ 1e1 9, 0 f- 9194 -6008 .—h--l-
/
_
�__ SEWER
l
/
i ZONE 2 i�RB
_—
—
— — — DRIVEWAY MPACT
2" j
— 360DRIV�tA'-
—
FACT 'C'
� M PACT 'B' E 1 NRB
_ - -
-_-
?0/ve 1 I ft
STREAM \ V;
ZONE 1 NRB
\ —
?ONf \\
2 Nagv � —
\
\ +WETLAND
� BONE �RB
— —
v
— � ���
_ _ _
—
----- �. - - -- �— \ �, — f
Ilk
—/ \ \� ♦ \ O
\ 60\
�0� v > _
----------- - - - - -- _
370
IMPACT SUMMARY
DRIVEWAY 'A'
ZONE 1 NRB IMPACTS: 1,320 SF
ZONE 2 NRB IMPACTS: 808 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'B'
ZONE 1 NRB IMPACTS: 1,326 SF
ZONE 2 NRB IMPACTS: 814 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'C'
ZONE 1 NRB IMPACTS: 1,331 SF
ZONE 2 NRB IMPACTS: 813 SF
STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'D'
ZONE 1 NRB IMPACTS: 1,486 SF
ZONE 2 NRB IMPACTS: 925 SF
STREAM IMPACTS: 20 LF (PERMANENT)
SEWER '1'
ZONE 1 NRB IMPACTS: 1,323 SF
ZONE 2 NRB IMPACTS: 804 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
SEWER '2'
ZONE 1 NRB IMPACTS: 1,396 SF
ZONE 2 NRB IMPACTS: 856 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
NOTES:
1. PIPES WILL BE BURIED
1' BELOW THE INVERT OF
EXISTING STREAM BED.
2. NO RIP RAP PLACED BELOW
NORMAL WATER LEVEL
GRAPHIC SCALE
50 0 25 50 10C
1 inch = 50 ft.
RCS'' °° °�`e B THE WOODS AT UMSTEAD
WdcR ' • = 5 °� WITHERS &- RAV E N E L °'° "°
a� -R ° 12-12 TRENTON ROAD LLC IMPACT MAP #2 g2
--d By I i °e" °. ENGINEERS I PLANNERS I SURVEYORS
CM° 2.Wli Ralei h Wake Count North Carolina " °nh�°���°°27s„ 1e1 9, 0 f- 9194 -6008 .—h--l-

IMPACT SUMMARY
SWALE AT BYPASS
ZONE 1 NRB IMPACTS: 715 SF
ZONE 2 NRB IMPACTS: 404 SF
STREAM IMPACTS: 0 LF
SEWER '3'
ZONE 1 NRB IMPACTS: 1,514 SF
ZONE 2 NRB IMPACTS: 1,187 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
NOTES:
1. PIPES WILL BE BURIED
1' BELOW THE INVERT OF
EXISTING STREAM BED.
2. NO RIP RAP PLACED BELOW
NORMAL WATER LEVEL
GRAPHIC SCALE
SWALE AT BYPASS SEWER CROSSING 3 30 0 15 30 60
1 inch = 30 ft.
ReV1S1On Date I B R � THE WOODS AT UMSTEAD g
-' WITHERS RAVENEL
IL By _, R lob "o °� 1212 TRENTON ROAD LLC IMPACT MAP #3 ENGINEERS I PLANNERS I SURVEYORS 3
cM° 2.Wli Raleigh Wake County North Carolina "°nh-1-21111 1e1 ! °x — Ihers—N,I -m

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THE WOODS AT UMSTEAD
TRENTON ROAD LLC
Raleigh Wake County North Carolina
SITE PLAN -NORTH &EAST
WITHERS & RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
Sheet No.
RV

PREVIOUSLY ISSUED CORPS NWP 29

U.S. A CORPS F ENGINEERS COPY
ARMY C S O NG
WILMINGTON DISTRICT
Action Id: 2012 -00609 County: Wake U.S.G.S. Quad: Neuse
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property Owner: Trenton Road, LLC Agent: Withers & Ravenel
Attn: Julian Rawls Attn: Troy Beasley
Address: 100 Weston Estates Wav Address: 1410 Commonwealth drive, (Suite 101)
Cary, North Carolina 27513 Wilmington, North Carolina 28403
Size and location of property (water body, road name /number, town, etc.): The proieet site is located on 33 acres, SE of the
intersection of Trenton Road & Trinity Farms Road North Carolina. The promect contains an unnamed tributar to Richland
Creek. .): Latitude: 35.823981 N Longitude: - 78.737636 W
Description of projects area and activity: This permit authorizes tempos ary -bnpaM to_60_linear feet of stream channel
ho—rlsewer- e i rman ently impacts 1 i near feet of stream associated a construction of
fQur driveways to access 4 sin a family Cots. (Words at Unistead) Subdivision. The purpose of the proposed project
into construct a residential suhdivislon. The project site �llntly consists of uxidevelaped woodlands.
Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344)
❑ Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Regional General Permit Number or Nationwide Permit Number: NWP 29
SEE ATTACHED NATIONWIDE AND SPECIAL CONDITIONS.
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached
conditions and your submitted application and attached information dated 02 February 2012. Any violation of the attached
conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and /or
appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified,
suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or
modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of
the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the
activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are
under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the
activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless
discretionary authority has been exercised on a case -by -case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You
should contact the NC Division of Water Quality (telephone [phone]) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA),
prior to beginning work you must contact the N.C. Division of Coastal Management.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal,
State or local approvals /permits.
If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory
program, please contact Joyce Thames at (919) 554 -4884 Ext 21.
Corps Regulatory Official Joyce Thames Date: 16 April 2012
Expiration Date of Verification: 16 April 2014
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so,
please complete the attached customer Satisfaction Survey or visit hllp:// per2 .nwp.usace.anny.mil /surve�htmi to complete the survey
online.
Copy Furnished:

Determination of Jurisdiction:
A. ❑ Based on preliminary information, there appear to be waters of the US including wetlands within the above described project
area. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process
( Reference 33 CFR Part 331).
B. ❑ There are Navigable Waters of the United States within the above described project area subject to the permit requirements of
Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our
published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
C. ® There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of
Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations,
this determination may be relied upon for a period not to exceed five years from the date of this notification.
D. ❑ The jurisdictional areas within the above described project area have been identified under a previous action. Please reference
jurisdictional determination issued _ . Action ID _
Basis For Determination
Remarks.
Attention USDA Program Participants
This delineation/determination has been conducted to identify the limits of Corps' Clean Water Act jurisdiction for the particular site
identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security
Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request
a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work.
F. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B and C
above).
This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this
determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed you will find a
Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you
must submit a completed RFA form to the following address:
US Army Corps of Engineers
South Atlantic Division
Attn: Jason Steele, Review Officer
60 Forsyth Street SW, Room 1OM15
Atlanta, Georgia 30303 -8801
Phone: [phone]
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete; that it meets the criteria for appeal
under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by 15 June 2012.
* *It is not necessary to submit an RFA form to the Divisior�O ffice if you do not object to the determination in this correspondence. **
Corps Regulatory Official:
Expiration Date: 18 April 2017
Copy furnished:
16 April 2012

DIFFUSE FLOW INFO &
O &M AGREEMENTS

_
i
28,750
0Y wnr�R
NCDENR
12,937
fe
Percent impervious
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
%
Rational C coefficient
401 CERTIFICATION APPLICATION FORM
ft/cfs
LEVEL
SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
cfs
Time of concentration
This form must be completely filled out, printed, initialed, and submitted.
min
I. PROJECT INFORMATION
7.22
in/hr
Project name
The Woods at Umstead
cfs
Contact name
Jennifer Diaz, PE
fmst
Phone number
919 -469 -3340
cfs
Date
June 25, 2013
(Y or N
Drainage area number
3 - FES #40
Ill. DESIGN INFORMATION
The purpose of the LS -VFS
Buffer Rule: Diffuse Flow
Stormwater enters LS -VFS from
The drainage area
Type of VFS
Protected riparian buffer (slope < 5 %)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
28,750
ft
Impervious surface area
12,937
fe
Percent impervious
45.00
%
Rational C coefficient
0.38
ft/cfs
Peak flow from the 1 in /hr storm
0.25
cfs
Time of concentration
5.00
min
Rainfall intensity, 10 -yr storm
7.22
in/hr
Peak flow from the 10 -yr storm
1.81
cfs
Design storm
1 inch /hourstorm
fmst
Maximum amount of flow directed to the LS -VFS
0.25
cfs
Is a flow bypass system going to be used?
Y
(Y or N
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10 -year storm
Maximum capacity of a 100 -foot long LS -VFS
Peak flow directed to the LS -VFS
Is a flow bypass system going to be used?
Explanation of any "Other" responses above
LS -VFS Design
Do not complete this section of the form.
cfs
cfs Do not complete this section of the form.
2 cfs
cfs Do not complete this section of the form.
(Y or N)
Forebay surface area
36
sq ft Forebay is adequately sized
Depth of forebay at stormwater entry point
6
in
Depth of forebay at stormwater exit point
6
in Depth is appropriate.
Feet of level lip needed per cfs
50
ft/cfs
Computed minimum length of the level lip needed
13
ft
Length of level lip provided
17
ft
Width of VFS
65
ft
Elevation at downslope base of level lip
313.50
fmsl
Elevation at the end of the VFS that is farthest from the LS
309.00
fmst
`���.�6tstaetOtto,te��
*�,..�� CAR p .� ess
09 REAL I
Co
Form SW401 - LS -VFS - 27Ju12011 - Rev 9 page 1 of 3

Slope (from level lip to the end of the VFS) 6.92 %
Are any draws present in the VFS? N (Y or N) OK
Is there a collector swale at the end of the VFS? N (Y or N)
Bypass System Design (if applicable)
Is a bypass system provided?
Y
(Y or N)
Is there an engineered flow splitting device?
Y
(Y or N) Please prov de plan details of flow splitter & supporting talcs.
Dimensions of the channel (see diagram below):
M
3,00
ft
B
0.00
ft
W
9.50
ft
y (flow depth for 10 -year storm)
0.54
ft
freeboard (during the 10 -year storm)
1.04
ft
Peak velocity in the channel during the 10 -yr storm
2.09
fUsec
Channel lining material
Pick one:
Does the bypass discharge through a wetland?
N
(Y or N)
Does the channel enter the stream at an angle?
Y
(Y or N)
Explanation of any "Other" responses above
W
1N. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been
met, attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
I itiats Page or plan sheet number and any notes:
._ Sheet 1- Site Plan, Sheet 3 - Grading Plan
G
:Sheet 12 - BMP Plan
Form SW401 - LS -VFS - 27Ju12011 - Rev.9 page 2 of 3

3. Section view of the level spreader (1" = 29 or larger) showing:
- UnderdraIn system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non- engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
$. A copy of the signed and notarized operation and maintenance (48M) agreement.
j,> Sheet 12 - f3MP Plan
Sheet 12 - BMP Plan
'10 -- Sheet 12 - BMP Plan
5..6rL attached
'iattached
Form SW401 - LS -VFS - 27JO2011 - Rev 9 page 3 of 3

Woods @ Umstead - FES 40 Bypass Channel
Project Description
Friction Method
Solve For
Input Data
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Discharge
Results
Normal Depth
Flow Area
Wetted Perimeter
Hydraulic Radius
Top Width
Critical Depth
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Flow Type
GVF Input Data
Downstream Depth
Length
Number Of Steps
GVF Output Data
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
Manning Formula
Normal Depth
Subcritical
0.069
0.05830 ft/ft
3.00 ft/ft (H:V)
3.00 ft/ft (H:V)
1.81 ft' /s
0.54 ft
0.87 ft2
3.40 ft
0.25 ft
3.22 ft
0.47 ft
0.12071 ft/ft
2.09 ft/s
0.07 ft
0.61 ft
071
0.00 ft
0.00 ft
0
0.00 ft
0.00 ft
Infinity ft/s
Infinity ft/s
0.54 ft
0.47 ft
0.05830 ft/ft
0.12071 ft/ft
-� I dk s
(42.4� (6 -154� (0 - Oc""?
I ,q(0 thIfk2
4 ADO Ml✓x= 60' T = 2 Ib91A�
use, CIaSS l e►p enp
J j'50 10 "' �.�' 3•S �n��+
Bentley Systems, Inc. Haestad Methods SolBIaatld�~Master V8i (SELECTseries 1) [08.11.01.03]
6/26/2013 10:28:47 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1

r l..
AMP*
NCDENR -.
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
�r;U@ -WAdK`Qs�YffeR
Project name
Contact name
Phone number
Date
Drainage area number
The Woods at Umstead
Jennifer Diaz, PE
919 -469 -3340
June 25, 2013
2 from FES#30
IL DESIGN INFORMATION
Forebay surface area
49
-sq ft
The purpose of the LS -VFS
Buffer Rule: Diffuse Flow
6
Stormwater enters LS -VFS from
The drainage area
Depth of forebay at stormwater exit point
6
Type of VFS
Protected riparian buffer (slope < 5 %)
Explanation of any "Other" responses above
50
fucfs
E
If Stormwater Enters the LS -VFS from the Drainage Area
26
ft
Drainage area
39,640
fe
73
Impervious surface area
21,344
fe
: �. ■+.� G, Q, .�
•• +��+r�y'
Percent impervious
53.85
%
�r a'� ► ~�,■
Rational C coefficient
0.57
fmsl
��
�.ea,�, ►•• x.25• i3
Peak flow from the 1 in/hr storm
0.52
cfs
page 1 of 3
Time of concentration
5.00
min
Rainfall intensity, 10- yrstorm
7.22
in/hr
Peak flow from the 10 -yr storm
3.75
cfs
Design storm
1 inch /hour storm
Maximum amount of flow directed to the LS -VFS
0.52
cfs
Is a flow bypass system going to be used?
Y
(Y or N)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from a BMP
Do not complete this section of the form.
Type of BMP
Peak discharge from the BMP during the design storm
cfs
Peak discharge from the BMP during the 10 -year storm
cfs
Do not complete this section of the form.
Maximum capacity of a 100 -foot long LS -VFS
2
cfs
Peak flow directed to the LS -VFS
cfs
Do not complete this section of the form.
Is a flow bypass system going to be used?
(Y or N)
Explanation of any "Other" responses above
LS -VFS Design
►`s�i��i +'
Forebay surface area
49
-sq ft
Forebay is adequately sized. *►► ► CAR�`.,�.
Depth of forebay at stormwater entry point
6
in
`
%� ■.•■ ■•.■ (� �i
'i�� io
Depth of forebay at stormwater exit point
6
in
Depth is appropriate. �!7. ■ ■'aFESS�
Feet of level lip needed per cfs
50
fucfs
E
Computed minimum length of the level lip needed
26
ft
Length of level lip provided
34
ft
73
Width of VFS
70
ft
: �. ■+.� G, Q, .�
•• +��+r�y'
Elevation at base of lip
322.50
fmsl
�r a'� ► ~�,■
Elevation at thewend of the VFS thatlis farthest from the LS
318.00
fmsl
��
�.ea,�, ►•• x.25• i3
Form SW401 - LS -VFS - 27Jul2011 - Rev.9
page 1 of 3

Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10 -year storm)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10 -yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other" responses above
6.43 %
N (Y or N) OK
N (Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting talcs.
3.00 It
0.00 It
10.50 ft
0.70 ft
1.00 it
2.53 ft/sec
MCK ones
N (Y or N)
Y (Y or N)
W
B
Ill. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been
met, attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3Mi iti Page or plan sheet number and any notes:
Sheet 1 -Site Plan, Sheet 3,- Grading Plan
G�] Sheet 12 - BMP Plan
Form SW401 - LS -VFS - 27Ju12011 - Rev 9 page 2 of 3

3. Section view of the level spreader (1" = 29 or larger) showing:
Underdrain system (if applicable),
Level lip,
llpslope channel, and
Oownslope filler fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
B. If a non- engineered VFS is being used, then provide a photograph of the VF S. showing
that no draws are present.
7. The supporting calculations.
8. A oopy of the signed and notarized operation and maintenance (09M) agreement
Sheet 12 - BMP Plan
Sheet 12 - BMP Plan
...W,Z Sheet 12 - BMP Plan
J G _ J attached
CD attached
Form SW401 - LS -VFS - 27JW201I - Rev.3 page 3 of 3

Project Description
Friction Method
Solve For
Input Data
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Discharge
Results
Normal Depth
Flow Area
Wetted Perimeter
Hydraulic Radius
Top Width
Critical Depth
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Flow Type
GVF Input Data
Downstream Depth
Length
Number Of Steps
GVF Output Data
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
6/25/2013 10:26:01 AM
Woods @ Umstead - FES 30 Bypass Channel
Manning Formula
Normal Depth
0.069
0.06000 ft/ft
3.00 ft/ft (H:V)
3.00 ft/ft (H:V)
3.74 ft3 /s
0.70
1.48
ft
ftZ
J
T= OL S
4.44
ft
0.33
ft
4.21
ft
C•
0.63
0.10958
ft
ft/ft
1
9
2.53
ft/s
0.10
ft
1 C �QSS I �o. 1"
V `� v
0.80
0.75
ft
tb'
wl 0L50 = 10 '(T--3.c;
Subcritical
0.00 ft
0.00 ft
0
0.00 ft
0.00 ft
Infinity ft/s
Infinity ft/s
0.70 ft
0.63 ft
0.06000 ft/ft
0.10956 ft/ft
Bentley Systems, Inc. Haestad Methods SolBdotidp~Master V8i (SELECTseries 1) [08.11.01.03]
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Page 1 of 1

RK � °y
NCDENR Q
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
L PROJECT INFORMATION
Project name The Woods at Umstead
Contact name Hunter Freeman
Phone number 919 - 469 -3340
Date January 12, 2012
Drainage area number 1
II. DESIGN INFORMATION
The purpose of the LS -VFS Buffer Rule: Diffuse Flow
Stormwater enters LS -VFS from A BMP
Type of VFS Engineered filter strip (graded & sodded, slope < 8 %)
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in /hr storm
Time of concentration
Rainfall intensity, 10 -yr storm
Peak flow from the 10 -yr storm
Design storm
Maximum amount of flow directed to the LS -VFS
Is a flow bypass system going to be used?
Explanation of any "Other" responses above
If Stormwater Enters the LS -VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10 -year storm
Maximum capacity of a 100 -foot long LS -VFS
Peak flow directed to the LS -VFS
Is a flow bypass system going to be used?
Explanation of any "Other" responses above
LS -VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
Length of level lip provided
fig
Do not complete this section of the form.
fe
Do not complete this section of the form.
%
Do not complete this section of the form.
Do not complete this section of the form.
cfs
Do not complete this section of the form.
min
Do not complete this section of the form.
in /hr
Do not complete this section of the form.
cfs
Do not complete this section of the form.
cfs Do not complete this section of the form.
(Y or N) Do not complete this section of the form.
Other: Explained below
0.2 cfs
0.2 cfs
10 cfs
0.2 cfs
Y (Y or N)
Dry Detention & Splitter Box
0 sq ft No forebay is required.
0 in
' � �s l0�. Fri
� C3
r ^fir, - �
q � r,
02W4�
'�
aaL'��
0 in Too shallow.
10 fucfs
2 ft Ten feet is the minimum level spreader length.
10 It
Form SW401 - LS -VFS - 27Ju12011 - Rev.9 page 1 of 3

Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10 -year storm)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10 -yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enterthe stream atan angle?
Explanation of any "Other" responses above
Jill. REQUIRED ITEMS CHECKLIST
30
ft
341.00
fmst
340.00
fmsl
3.33
%
N
(Y or N) OK
N
(Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow splitter & supporting calcs.
3.00
ft
0.00
ft
12.00
ft
0.65
ft
1.35
ft
4.69
ftlsec
Pick one:
N
(Y or N)
Y
(Y or N)
1[d
tieebr-fx'd (tlnrluLr IIr_' I f -"I :aoiuil
;' iilnllF1' itl2 ttr- +rl'stolin)
----------
t+t kf
4 R
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result
in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met,
attach justification.
Requried Item:
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
lnit!pW Page or plan sheet number and any notes:
Form SW401 - LS -VFS - 27Ju12011 - Rev.9 page 2 of 3

2. Plan details (1 ° = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
High flow bypass system,
One foot tope lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
3. Section view of the level spreader (V = 20' or larger) showing:
- Underdrain system (if applicable),
Level lip,
Upsiope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non- engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
0. A copy of the signed and notarized operation and maintenance (O &M) agreement.
rem
9-
Form SW401 - LS -VFS - 27Ju12011 - Rev.9 patp 3 n' 3

Woods @ Umstead - Bypass Channel
Project Description:
Friction Method Manning Formula
Sole For Normal Depth
Input Data
Roughness Coefficient 0,040
Channel Slope O.D7600 ft/ft
Left Side Slope 3.00 ft/ft (H:V)
Right Side Slope 3.00 ft/ft (H:V)
Discharge 6.00 ft'fs
Results
Normal Depth
0.65
ft
C
Flow Area
1.28
ftx
Wetted Perimeter
4.13
ft
Top Width
3.92
ft
Critical Depth
0.76
ft
Critical Slope
0.03458
fyft
Velocity
4.69
fUs
Velocity Head
0.34
ft
Specific Energy
0.99
ft
Froude Number
7,45
Flow Type
Supercritical
GVF Input Data
Downstream Depth
0.00
ft
Length
0.00
ft
Number Of Steps
0
GVF Output Data
Upstream Depth
O,OD
ft
Profile Description
Profile Headloss
0.00
ft
Downstream Velocity
Infinity
fUs
Upstream Veloci#y
infinity
ftls
Normal Depth
0.65
ft
Critical Depth
0.76
ft
Channel Slope
0,07600
fVft
Critical Slope
0.03458
fdit
Bentley Systems, Inc. Haes tad Methods Solution Center Bentley FtowMaster [08.01.071.00]
11121201211:03:50 AM 27 $lemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 1

Appendices
Table 8.058
Permissible Unit Shear Stress, Td
Permissible Shear Stresses
for Riprap and Temporary
Lining Category
Lining Type
(Ib /ftz)
Liners
Temporary
Woven Paper Net
0.15
Jute Net
0.45
Fiberglass Roving;
Single
0.60
Double
0.85
Straw with Net
1.45
Curled Wood mat
1.55
Synthetic Mat
2.00
d50 Stone Size (inches)
Gravel Riprap
1
0.33
2
0.67
Rock Riprap 6 2.00
9 3.OQ
7.0
15 5.00
21 L 7.80
24 8.00
Adapted From: FHWA, HEC -15, April 1983, pgs. 17 & 37.
Design Procedure- The following is a step -by -step procedure for designing a temporary liner for
a channel. Because temporary liners have a short period of service, the design
Temporary Liners Q may be reduced. For liners that are needed for six months or less, the 2 -year
frequency storm is recommended.
Step 1. Select a liner material suitable for site conditions and application.
Determine roughness coefficient from manufacturer's specifications or Table
8.05e, page 8.05.10.
Step 2. Calculate the normal flow depth using Manning's equation (Figure
8.05d). Check to see that depth is consistent with that assumed for selection of
Manning's n in Figure 8.05d, page 8.05.11. For smaller runoffs Figure 8.05d
is not as clearly defined. Recommended solutions can be determined by using
the Manning equation.
Step 3. Calculate shear stress at normal depth.
Step 4. Compare computed shear stress with the permissible shear stress for
the liner.
Step 5. If computed shear is greater than permissible shear, adjust channel
dimensions to reduce shear, or select a more resistant lining and repeat steps
1 through 4.
Design of a channel with temporary lining is illustrated in Sample Problem
8.05b, page 8.05.14.
Rev. 12193 8.05.13

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire filter strip
Trash /debris is present.
Remove the trash /debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clo ed.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problem:
How I will remediate the problem:
The Swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one -time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer gjRlication.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919 - 733 -1786.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:The Woods at Umstead
BMP drainage area number:
P
T
A
P
S
D
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
C` .-� 5s �t L , �� , a Notary Public for the State of
I '
a
County of t„J �� , do hereby certify that
Jl"C — (U) c Q personally appeared before me this
day o "Je ,�� «and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
00% p 1 tit I I I I f 1 111
� '' PM E SSA
J
r4��
:fay
�.=
N
I!
SEAL
My commission expires / oil - -D 61 -!:
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3

Permit Number:
(to be provided by DWQ)
Drainage Area Number:'
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire filter strip
Trash/ debris is present.
Remove the trash/ debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problem:
How I will remediate the problem:
The Swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one -time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if applicable).
a roximatel three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
1
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919 - 733 -1786.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:The Woods at Umstead Phase 2
BMP drainage area number•:2 from FES #30
Print name:Julian W. Rawl
Title:Mana er
Address: 100 Weston Estates Way Cary NC 27513
P1
Si
I
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I„ 1I a ht-'s-, '__ ,../,/- � "..t,
a Notary Public for the State of
[Vck-rK Le,A County of t,,] c fik- 1, do hereby certify that
J I ► C ^ _i�! e A personally appeared before me this
da f c./ ^1L , �a r �, and acknowledge the due execution of the
forgoing filt strip, riparian buffer, and /or level spreader maintenance requirements.
Witness tU ►lam 4&.nd official seal,
SEAL
My commission expires / ✓ o? I - _-)J / a
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3
�s
20
w
m
n
soG�l�9'P�
_
x
',�I r�'''� N
►��r ri � t �, ►m►
SEAL
My commission expires / ✓ o? I - _-)J / a
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire filter strip
Trash/ debris is present.
Remove the trash/ debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problem:
How I will remediate the problem:
The Swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one -time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if applicable).
a roximatel three to six inches.
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
1
outlet.
401 Oversight Unit at 919 - 733 -1786.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:The Woods at Umstead Phasc 2
BMP drainage area number:3 from FES #40
Print name:Julian W. Rawl
Title:Manager
Address: 100 Weston Estates Way, Car. NC 27513
Phone: [phone]
Sig
�. cJ
Date: t' 1C.P-
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I,
it. Cr J.
of
a Notary Public for the State of
do hereby certify that,
personally appeared before me this "
day of d�71, and acknowledge the due execution of the
forgoing fi er strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL
My commission expires
�- aL
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3
G��.�
G:;A
SEAL
My commission expires
�- aL
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3

IMPACT MAPS

F" r
i
■
r
, +
• �`
1
J +' L
; 11 5 Sri
!' • rrr +
1r-
�f
tag
+ I ,
IMPACT LOCATION
BUFFER
STREAM
ZONE
1
ZONE
2
SF
AC
AC
LE
DRIVEWAY A
1,320
0.030
0775.02 -75 -5892,
0.019
20 p
DRIVEWAY B
1,326
0.030
r8l
0.019
20 p
DRIVEWAY C
1,331
0.030
0775.16 -94 -0819
0.019
20 P
DRIVEWA Y D
1,486
0.030
0.019
20 P
SEWER 1
1,323
1 0.030
804
0.018
20
SEWER 2
1,396
0.032
856
0.020
20T
SWALE BYPASS #1
715
0.016
404
0.009
-
SWALE BYPASS #2
787
0.018
404
0.009
-
SWALE BYPASS #3
785
0.018
472
1
0.011
-
10,4691
0.236
6.300
0.143
120
SITE DATA
DEVELOPMENT NAME:
THE WOODS AT UMSTEAD
WETLAND AREA
LOCATION:
3308 TRENTON ROAD
PROPOSED USE:
SINGLE - FAMILY RESIDENTIAL
ZONE 1
PIN #:
0775.02 -75 -5892,
NRB IMPACTS
0775,02-75-5370,
0775.02 -75 -1253,
ZONE 2
0775.16 -94 -0819
NRB IMPACTS
ZONING DISTRICT:
R -4 CUD, R -2 MPOD
PARCEL SIZE:
32.99 AC.
# UNITS ALLOWED:
128
N UNITS PROPOSED:
35
AVERAGE LOT SIZE:
36,868 SF
INSIDE FALLS LAKE:
NO
INSIDE FLOOD HAZARD:
NO
GRAPHIC SCALE
150
0. 75 150 300
NOTES:
j�1'/ �� i j I 1 r+ 1 +, ��+ ♦ 1• PIPES WILL BE BURIED -
`,`, ��' % , 0 ,' ,+ /; r r , + ; ; ; i ♦ �•� ` }' 1' BELOW THE INVERT OF 1 inch = 150 ft.
MATCH SHEET 1 B ri'I,� , .' ', 'L r I % .rrr +ri I i + l — EXISTING STREAM BED.
I
_ r — — — — — r - — — — r r — — 2. NO RIP RAP PLACED BELOW
- -- - - -- -- --- - - - - -- - -�- -�= �fr1r►��;�r�; rrr ,, -� '�
ATCH VIEW 1A /r jrrr; �'!� ► ; ! ♦ 1 f NORMAL WATER LEVEL
I' r r f r 25' MPOD 1 V
+ i i 1
r r I` r' , ' WATERCOURSE ♦ f/ t l
l I r + I ■ r �r i ' + BUFFER �N" 1 /•� !`,� >t % , `i
1r 1, �, ^�' � 1 i i 1 I I i i i i i I� r / ■+ r/ r -+ � � r /'rr f% �. k
��� rLL r �'• r �` � L ` ', 1t 11 � � 5� 1 1 f T / `1 1 � / � 'V'_ 1 f
r , ; r ® • i' 16 i I ' �,'�•�',�, `1�'t LL', Ij I 1 r ` I 1 ; •, %' \1 w,
y.
L% %
r f
r l
15 r / ,r' .� / i L i I 15 i I I r i ■ _ \t,,
l
r _
–.OD–
ZONE
ZONE X
s �e ---------
-. - -" 'r' . ,.,,,.�1,,1,,�,' ! �, I = �_ .1 '•,`•, SEE AP 3 -�
- -� -_ – r'- • i �� s}}��5'$i�11',5 r .y,o� -;��. 1 • • I ZONE AE
�7 j r -�a -+ -- r '– �''G-inr _ I I Its �„�, +�`s��\ ` s 1 \1 1 . -� ` –__'� •,y , – P
a�- _ SEE MA 3
WL , -` -- - - - - -- w__
--- _ - - - --s - - ~�� +y' ~i • `r / i 5 i 1' `i �•� 's's Ls \s L, L __�_r� '• ~�� �`_ Fr . 4 �js� _ -- y - _�
�� • ;�l��i r , i� –___' -- 13 – _ –_– �``� – r S 26 < <LS�s,LS \'t s, t�` f}ss„ -- ~'� �s ' > ~ -. 1tl� •FfIrP' _ 5p' /
j � } ♦ t stsl , , , s, �s,,� . r r %r,J �-x _.�r �[_ — _ JWr�3 � f%
r Y %
■, f' SWA . f
– f� r ■` /
Al
– s - - -- •.- r – _ ^�°– _ – i `+ i I \', - -- �RF,nM - ■f ~ +� BY ASS 1 f
ri r r ■ r +r� /+ '» ,r ��~ ~ – ` � _ ■ r I s I '-i' r .i� \�} � .� ,� � , w MPACT�
/ •� ; rrr »jr/
� � •rrr i /r r r r ,'/ / r � - � .F � - -'"� w � r ■ / + • � � r r - _ f .� r' � � _ �►�+ / / % � .
�,SiVkY7Ri y jjly{l1r � .5LlrIFFL r, � 'j rp ' �• r / "' 1 � `1 i
€7RtVk
Jill
rr,l1,�+� I i ` – Wti T Aft �/– C>•al - ,, + _ /+ Q '+ �''`. �r'f rr' - - -'' I I .;yl ;r i r` — -;;�:. =
� + � fLr .� .•_ •:ti•i Sr_ .– .'■Si _'1:: ".:•;
f f + err �rrry _ \ t ' -L \ i t �?
itr r r/ rr s-
� S -• �j ■rir ++'r +//', /+ � - .� • .�- -►:- '. � }- - -��`_ �` � '� , SW i r i _ `` - �`y- " - -`� n` /r r' -- _ - a.a -_ —t�� =��-' 1`1 ,
�� ! • ■ii +r /r+ +/i t, - ♦ �AS
`
f� -'� - 7^ =�- -•r•�- - -- _�� �1 1 '; s1 1
/ '1 r+'� _ fr17 r ■r \ •, \C �� `�, I J ` — -- *5 *, L l ' MPAL
`` L
■ + ; ___', +r/ri .. SEVYER
!
` _ Otis
\
_ I ,, ; ` r , i t `ti � 1� ! y • ,r %.' M -��` .. 4 ` � � � _�_`- ♦ 1 t1 i ik
-- - - -- -- –,� .� `. X11' s, i - }� L1 . .'�+� ,` i +i r / ,`,'t`( ''.'– ri'' _ r ' r ■ \ ', t1s 1 ;+
11 ■
lo
''
� _ _ �` � �' __' —_ -• -- �►������ 1 I , L II f `'•M �1 ` -.er _r / f � , 4 ``' I I I �I'�''4i
- ._._. Q N, L L ' - ��� ti mli - I is 1+ Sl ' ' p W+
F rr �� �r�. + � 1 tea: +■ i , f � ri � •, �.�.... �y,, - _
No R °a" B "�' xa" THE WOODS AT UMSTEAD wiTHERS RA,VENEL
0
1
IMPACT MAP
°', •ur , L TRENTON ROAD LLC ENGINEERS 1 PLANNERS I SURVEYORS
rk6mBy IAN.. ... » -.._. _ .... .- ... ..... - �..
t001 Tf.IQ v�i..,..h Inr��� r,..... nb,.rV. r•� .,I �,.�

--- ►L_____ �_rr - -__ _ _ -�, _ ���u� l -f� I 1 IMPACT SUMMARY
DRIVEWAY 'A'
I ZONE 1 NRB IMPACTS: 1,320 SF
LLL-1-11
ZONE 2 NRB IMPACTS: 808 SF
STREAM IMPACTS: 20 LF (PERMANENT)
— — — — — — — — —
DRIVEWAY 'B'
13 / / / - / - r ~^ r ~J ZONE 1 NRB IMPACTS: 1,326 SF
ZONE 2 NRB IMPACTS: 814 SF
— — — STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'C'
r
��� ~ ZONE 1 NRB IMPACTS: 1,331 SF
ZONE 2 NRB IMPACTS: 813 SF
77�— — STREAM IMPACTS: 20 LF (PERMANENT)
DRIVEWAY 'D'
/ — —
— :.
ZONE 1 NRB IMPACTS: 1,486 SF
/ — — — — — — — ZONE -
/ / 2�� r r r J r IMPACT 2 I �� —� ZONE 2 NRB IMPACTS: 925 SF
� _ Jv / � � DRIVEWAY �, z, �.� —
/ -� / STREAM IMPACTS: 20 LF (PERMANENT)
360— DRIVEWAY
/ / r �- /1fPACT 'C' -- -. -- �nVE7tA;Y-
/ �6NE 1 NRB .��j� r r r l r r f I.,�t4ICC —D SEWER '1'
IRS
\ _ J ' r r , I ZONE 1 NRB IMPACTS: 1,323 SF
l NRB,- i I�
/ • ` \1 \ / STREAM — \ \ f ZONE 1 �
_
IM VI- 7--- 11lj�e i l — \ - ~~ / �� 1 ZONE 2 NRB IMPACTS: 804 SF
Gt
TVIV ff'A `A_ \ \ \ \ \ \ '� • �" . ' . , , ' — \ / /'r \ STREAM IMPACTS: 20 LF (TEMPORARY)
•� SEWER '2'
_ \ - —•1 ` I ZONE 1 NRB IMPACTS: 1,396 SF
?`_ -._•• \ � - -� — _� _.._..... �•~= '`�•_\ - _— ^ - --.\ � —'Y- -� — �. ` � 111
,K . \SEWER ZONE 2 NRB IMPACTS: 856 SF
STREAM IMPACTS: 20 LF (TEMPORARY)
_ _ NOTES 1
\ \ \ \ I ' \ 1 ~ ~ ~ ` 1 \ \ \ 1P ES WILL BE BURIED
p l �, / r / ' 1' BELOW THE INVERT OF
tir ' ilj \ , / / EXISTING STREAM BED.
�� 1`1� 2. NO RIP RAP PLACED BELOW
i
\ — \ J16. \ L \ , ` \` ` — _ NORMAL WATER LEVEL
GRAPHIC SCALE
g — _ ~ •` �� \ ~ 1 �'~� m ~ �� 1 inch = 50 ft.
° "'' THE WOODS AT UMSTEAD WITHERS RAVENEL
D"-6y Dap TRENTON ROAD LLC IMPACT MAP #2 2
Nkil fp !S
cr.,y.ao. p +.nr „",_,.•Y E1161NEERS 1 PLANNERS I SIIRYEYQRS^•..-T..--

-
i
J
�i
IIII
Imam,
_
� YPASS
M PACE` : — r EEV� L — n
— — SPREADER
SWALE � � � �— -- � - -- � ����j SWAE�
BYPA PASS
IMPACT 1
SWALE BYPASS #1
IMPACT SUMMARY
I ZONE 1 NRB IMPACTS: 715 SF
II��II ZONE 2 NRB IMPACTS: 404 SF
STREAM IMPACTS: 0 LF
77-ev axr
W &R I 73
checked By fob No
cuo R71- -70.IC L
1
SWALE BYPASS #2 SWALE BYPASS 3
IMPACT SUMMARY IMPACT SUMMARY �}
ZONE 1 NRB IMPACTS: 787 SF �l ZONE 1 NRB IMPACTS: 785 SF
GRAPHIC SCALE
ZONE 2 NRB IMPACTS: 404 SF 30 0 15 30 60 ZONE 2 NRB IMPACTS: 472 SF
I _
STREAM IMPACTS: 0 LF STREAM IMPACTS: 0 LF J
1 inch = 30 ft. 1+
THE WOODS AT UMSTEAD
TRENTON ROAD LLC
IMPACT MAP #3
WITHERS &- RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
Fig N.