20051668 Ver 1_Complete File_20050901

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
November 9, 2005
Mr. Kelly Race
Centex Homes
2301 Sugar Bush Road - Suite 400
Raleigh, NC 27612
Subject Property: Westover Park
Crabtree Creek [030402, 27-33-(10), C, NSW]
Alan W. Klimek, P.E. Director
Division of Water Quality
DWQ Project # 05-1668
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 Mr. Race:
You have our approval, in accordance with the attached conditions and those listed below, to place fill
within or otherwise impact 0.005 acres of wetland (temporary impact), 30 feet of stream (temporary
impact) and 1,266 square feet (ft) of protected riparian buffers (1,165 square feet Zone 1 and 101 square
feet Zone 2) for the purpose of construction of a residential subdivision, greenway trail and utility line at
the subject property, as described within your application dated September 1, 2005 and received by the
N.C. Division of Water Quality (DWQ) on September 1, 2005. After reviewing your application, we
have decided that the impacts are covered by General Water Quality Certification Number(s) 3374
(GC3374). The Certification(s) allows you to use Nationwide Permit(s) NW12 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 2B .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 or CAMA 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.
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
Noy` hCaroI' ma
401 Oversight/Express Review Permitting Unit Naturally
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Intemet: http://h2o.enr.state.nc.us/newctlands
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
Centex Homes
Page 2 of 3
November 7, 2005
Amount Approved Units Plan Location or Reference
Stream (temporary impact) 30 linear feet PCN page 4 of 9
404/CAMA Wetlands (temporary impact) 0.005 acres PCN page 4 of 9
Buffers Zone 1 1,165 (square ft. PCN page 7 of 9
Buffers Zone 2 101 (square ft. PCN page 7 of 9
2. 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 shall not be placed in wetlands or waters to the maximum extent
practicable. If placement of sediment and erosion control devices in wetlands and waters is
unavoidable, they shall be removed and the natural grade restored within six months of the date that the
Division of Land Resources has released the project;
5. Protective Fencing - The outside buffer, wetland or water boundary and along the construction corridor
within these boundaries approved under this authorization shall be clearly marked with orange warning
fencing (or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15A NCAC
2B.0233 and GC 3404;
6. Diffuse Flow (No Review)
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate
before discharging into a stream as identified within 15A NCAC 213 .0233 (5). If this is not
possible, it may be necessary to provide stormwater facilities that are considered to remove
nitrogen. This may require additional approval from this Office.
Il
Centex Homes
Page 3 of 3
November 7, 2005
7. 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 401 Oversight/Express Review Permitting Unit, 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 CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of
the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask fora
hearing.
Any disputes over determinations regarding this Authorization Certificate (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is
subject to review as provided in Articles 3 and 4 of G.S. 150B.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act and the Neuse riparian buffer protection rule as described within 15A NCAC 213 .0233. If you have
any questions, please telephone John Dorney or Ian McMillan at 919-733-1786.
Since ely,
C l
AWK/Unt
Fl-'11an W. Klimek, P.E.
Enclosures: GC 3374
Certificate of Completion
cc: Todd Preuninger, Withers & Ravenel, 111 MacKenan Drive, Cary, NC 27511
USACE Raleigh Regulatory Field Office
Eric Kulz, DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
Filename: 051668 WcstoverPark(Wake)401+NBR
OF W A TFR Michael F. Easley, Governor
Q
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ecretary
Will
am G. Ross
r.,
North Carolina Department of Environment and Natural Resources

0 Alan W. Klimek, P.E. Director
Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
401 Oversight/Express Review, Program Development and
Transportation Permitting Units
Street Address: 2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center
Raleigh, NC 27699-1650
Contact Information: Phone #:
Fax #:
To:
919-733-1786
919-733-6893
Fax #: A? `?J - 606
Company: Date:
From: ?C.
Number of pages including cover sheet:
Notes or special instructions:
I?
Division of Water Quality, Wetlands and Stormwater Branch
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: http://12o.enr.state.ne.us/ncwetlands
Nb
One
r Carolina
Naturally
An Equal Opportunity/Affirmative Action Employer- 50% Recyclcd/10% Post Consumer Paper
O?O? W AT ?qpG
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
November 9, 2005
Mr. Kelly Race
Centex Homes
2301 Sugar Bush Road - Suite 400
Raleigh, NC 27612
Subject Property: Westover Park
Crabtree Creek [030402, 27-33-(10), C, NSW]
Alan W. Klimek, P.E. Director
Division of Water Quality
DWQ Project # 05-1668
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 Mr. Race:
You have our approval, in accordance with the attached conditions and those listed below, to place fill
within or otherwise impact 0.005 acres of wetland (temporary impact), 30 feet of stream (temporary
impact) and 1,266 square feet (ft) of protected riparian buffers (1,165 square feet Zone 1 and 101 square
feet Zone 2) for the purpose of construction of a residential subdivision, greenway trail and utility line at
the subject property, as described within your application dated September 1, 2005 and received by the
N.C. Division of Water Quality (DWQ) on September 1, 2005. After reviewing your application, we
have decided that the impacts are covered by General Water Quality Certification Number(s) 3374
(GC3374). The Certification(s) allows you to use Nationwide Permit(s) NW12 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 or CAMA 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.
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
N r hCarolma
401 Oversight/Express Review Permitting Unit Nafitra!!y
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: htt n://h2o enr state.ne.us/ncwetlands
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
Centex Homes
Page 2 of 3
November 7, 2005
Amount Approved Units Plan Location or Reference
Stream (temporary impact) 30 linear feet PCN page 4 of 9
404/CAMA Wetlands (temporary im act 0.005 acres PCN page 4 of 9
Buffers Zone 1 1,165 (square ft. PCN page 7 of 9
Buffers Zone 2 101 (square ft. PCN page 7 of 9
2. 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 shall not be placed in wetlands or waters to the maximum extent
practicable. If placement of sediment and erosion control devices in wetlands and waters is
unavoidable, they shall be removed and the natural grade restored within six months of the date that the
Division of Land Resources has released the project;
5. Protective Fencing - The outside buffer, wetland or water boundary and along the construction corridor
within these boundaries approved under this authorization shall be clearly marked with orange warning
fencing (or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15A NCAC
213 .0233 and GC 3404;
6. Diffuse Flow (No Review)
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate
before discharging into a stream as identified within 15A NCAC 213 .0233 (5). If this is not
possible, it may be necessary to provide stormwater facilities that are considered to remove
nitrogen. This may require additional approval from this Office.
Centex Homes
Page 3 of 3
November 7, 2005
7. 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 401 Oversight/Express Review Permitting Unit, 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 CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of
the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a
hearing.
Any disputes over determinations regarding this Authorization Certificate (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is
subject to review as provided in Articles 3 and 4 of G.S. 150B.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act and the Neuse riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have
any questions, please telephone John Dorney or Ian McMillan at 919-733-1786.
AWK/ijm
Enclosures: GC 3374
Certificate of Completion
Since ely,
C l
(6`-?Man W. Klimek, P.E.
cc: Todd Preuninger, Withers & Ravenel, 111 MacKenan Drive, Cary, NC 27511
USACE Raleigh Regulatory Field Office
Eric Kulz, DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
Filename: 051668 WestoverPark(Wake)401+NBR
Date:
To: ? - ARO
? FRO
? MRO
Triage Check List.
Proie6t Name:
DWQ#:
County:
Kevin B amett
Ken Averitte
Alan Johnson
? RRO a Horan
From: .n/
? WaRO Tom Steffens and Kyle Barnes
? WiRO Noelle Lutheran
? WSRO Daryl Lamb
Telephone : (919)
The file attached. Is being forwarded io•.? our for your evaluation.
Please call if you need\as' Lance.
? Stream length impacted. '?
? Stream determination
? wetland determination and distance to blue-line surface'.waters on USFW topo maps
? Min imization/avoidance issues
? Buffer Rules (Meuse, Tar-Pamlico, Catawba, Randleman)
? Pond fill
? Mitigation Ratios
? Ditching
? Are the stream and or wetland mitigation sites available and viable?
? Check drawings for accuracy
-
? Is the application consistent with pre-application meetings?,
? Cumulative impact concern
comments:

ENGINEERS I PLANNERS I SURVEYORS
September 1, 2005
US Army Corps of Engineers NC-Division of Water Quality
Attn: Mr. Monte Matthews Attn: Ms. Debbie Edwards
6508 Falls of the Neuse Road, Suite 120 2321 Crabtree Blvd.
Raleigh, North Carolina 27615 Raleigh, North Carolina 27604
Re: Westover Park - Request for NWP 12 and Buffer Compliance
Dear Mr. Matthews and Ms. Edwards,
On behalf of Centex Homes, we are requesting authorization from the USACE to use
NWP 12 for the installation of a utility line and buffer compliance from the NC-DWQ for
the construction of a boardwalk that will impact Neuse riparian buffers. Please note that
because the utility is less than 40 feet in width and crosses the stream at a perpendicular
angle, 401 approval is not required from the NC-DWQ.
The subject is property is located on the west side of Davis Drive, just north of the
intersection of Morrisville Parkway and Davis Drive, in Wake County, North Carolina.
The site is bounded on the north by Nancy Branch Creek. The project is located in the
Neuse River Basin. A wetland delineation was conducted by Soil and Environmental
Consultants. Wetlands on-site are confined within the Neuse Riparian Buffer. With the
exception of the greenway and the utility line, no buffer impacts are proposed. A wetland
map will be submitted under separate cover.
The proposed impacts consist of 30 linear feet of temporary channel impact and 0.005
acres of temporary wetland impact. Buffer compliance is needed for a wooden
boardwalk that will cross Nancy Branch Creek. The boardwalk will not impact the
stream channel itself.
Because the impacts are temporary, no mitigation is proposed for the utility line. In
addition, we do believe mitigation will be required by the NC-DWQ, because greenway
trails are allowed in the riparian buffer, with prior approval.
Please feel free to call if you have questions or require additional information.
Sincerely,
---- <0 L'
U LE 6ME O V
D
Todd Preuninger SEP 1 2005
Withers and Ravenel DENR - WATER QUALITY
1ti'ETI ANDS AND STORMWATER BRANCH
Attachments - I) PCN Form, 2) Data Forms, 3) Site plans, 4) Stormwater details,
5) Agent Authorization, 6) DWQ worksheets, 7) USGS Quad, 8) Soil Survey Map
iii MacKenan Drive i Cary, North Carolina 27511 1 tel: [phone] fax: [phone]oo8 i www.withersravenel.com
107 Stokley Drive i Suite 104 1 Wilmington, North Carolina 28403 1 tel: [phone] fax: g1o.256.2584
Office Use Only: Form Version March 05
2 0 0 5 1 nca
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
? 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested:
12
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here:
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), ch Awi-e: ?
II. Applicant Information ?Q??
SEP X (J
1. Owner/Applicant Information DE 2005
Name:_ Centex Homes
1??eR: W9rrn _
Mailing Address: Attn: Kelly Race ?"`fDSTORMWa?!T1?f
2301 Sugar Bush Road - Suite 400
Raleigh, North Carolina 27612
Telephone Number: 919-781-1952 Fax Number: 919-571-8346
E-mail Address: [e-mail]
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Todd Preuninger
Company Affiliation: Withers & Ravenel
Mailing Address: I 1 I MacKenan Drive
Cary, North Carolina 27511
Telephone Number: 919-469-3340 Fax Number: 919-238-2099
E-mail Address: tnreunini-,[e-mail]
Page l of l
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Westover Park - Greenway and Utility Line Installation
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 0745417951, 0745416347.0745415264
4. Location
County: Wake Nearest Town: Morrisville
Subdivision name (include phase/lot number): Westover Park
Directions to site (include road numbers/names, landmarks, etc.): Property is located on the
western side of Davis Drive approximately 1500' south of the intersection of Davis Drive
and Morrisville Carpenter Road.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.8153142 ON 78.8504443 °W
6. Property size (acres): 3396
7. Name of nearest receiving body of water: Crabtree Creek
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
51
River Basin map is available at littp://li2o.enr.st ite.nc.us/a(imin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is currently a wooded tract of land while the land
use in the vicinity of the project is primarily residential.
Page 2 42
10. Describe the overall project in detail, including the type of equipment to be used: Tile
proposed project consists of the constriction of a subdivision red enway trail, and utility line
installation Typical heavy equipment associated with land clearing and grading will be used
to prepare the site for construction.
11. Explain the purpose of the proposed work: The purpose of the proposed work is to provide
housing for residents of Wake County and a greemvay trail for residents of the subdivision.
Temporary impacts to Nancy Branch Creek are proposed for the installation of a sewer line.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. A detailed delineation was conducted by Soil and Environmental
Consultants The delineation map will be submitted under separate cover. Data Forms are
included with this application in support of the delineation.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
None anticipated
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Project impacts consist of 30
Page 3 of 3
linear feet of temporary impacts to a perennial channel for utility line installation and 0.005 acres
of temporary wetland impact.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
sennrate.ly list imnnrtc due to heth structure and flooding.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) ( es/no) (linear feet)
U1 Temp. excavation Forested Yes Adjacent 0.005
Total Wetland Impact (acres) 0.005
3. List the total acreage (estimated) of all existing wetlands on the property: None within
project footprint. Wetlands are located within the Neuse riparian buffer, however these areas
were not delineated (with the exception of the sewer/ reenway corridor), since they will not
be impacted by the proposed development.
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
mast he included- To calculate acreage. multinly length X width. then divide by 43.560.
Stream Impact Perennial or Average Impact Area of
Number Stream Name Type of Impact Intermittent? Stream Width Length Impact
(indicate on ma) Before Impact (linear feet) (acres)
U I UT to Crabtree Crk Temp. Excavation Perennial 10 30 0.00688
Total Stream Impact (by length and acreage) 30 0.00688
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill. excavation. dredging. flooding. drainage. bulkheads, etc.
Open Water Impact Name of Waterbody Type of Waterbody Area of
Site Number
(if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on ma) ocean, etc.) (acres)
N/A N/A N/A N/A N/A
Total Open Water Impact (acres) N/A
6. List the cumulative impact to all Waters of the U.S. resultin-- from the project:
Stream Impact (acres): 0.00688
Wetland Impact (acres): 0.005
Open Water Impact (acres): N/A
Total Impact to Waters of the U.S. (acres) 0.011
Total Stream Impact (linear feet): 30
Pagc 4 of 4
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
N/A
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aestlietic, trout pond,
local stormwater requirement, etc.): N/A
Current land use in the vicinity of the pond:
Size of watershed draining to pond: N/A Expected pond surface area: N/A
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
No impacts are proposed as part of the constriction of the S/D. However, in order to provide
sewer, its necessary to cross the creek to tie into the existing sewer. Wetlands and a perennial
stream channel will be impacted temporarily.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
Page 5 of 5
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetiands/strmgide.litmi.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Because impacts are temporary, no mitigation is proposed.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at htt1):Hli2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A'
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Page 6 of 6
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 213 .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
213 .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify V Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 1165 3 (2 for Catawba) N/A
2 101 1.5 N/A
Total 1266 N/A
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Please note, the buffer impacts listed above are for the greenway trail. The utility line will impact 2,990 SF of riparian
buffer (Z1: 1,942 and Z2: 1,048). Total buffer impacts consist of 4,256 SF.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 213 .0242 or .0244, or .0260.
Because the utility line crosses the buffers at a perpendicular anfle and because the corridor
is less than 40 feet in width this is considered an exempt activity and does not require
mitigation Additionally_areenway, trails are an allowable activity within the buffer as long
as prior approval is granted and do not require mitigation.
Page 7 of 7
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. Currently the site contains no impervious
surface When the project is complete the site will contain 33.73% impervious. During
construction measures will be taken to protect downstream water quality (e. temporary
sediment basins. Following construction the applicant will utilize dry ponds, forested filter
strips and level spreaders as required by the Town of Cary and the Neuse Buffer Rules.
Because 401 certification is not required for this project, we do not believe a pre-approved
stormwater management plan is required
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sanitary Sewer
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 21-1.0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: The
proposed project is not anticipated to result in additional development in this area. The adjacent
properties have already been developed or are in the process of being developed. During
construction the applicant will employ erosion control measures to protect water quality down
stream of the site. Following construction the applicant will
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
PaL,e 8 48
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
NA
9
Applicant/Agent's Signature -' bate
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Pa?,,e 9 of 9
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Pr0ect #204035 August 19 2005 ' rr
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I 1

ENGINEERS I PLANNERS I SURVEYORS
k
Site Access/Agent Authorization Form
Project Name: )N ?
Property Owner/contract Purchaser:
Address:
(AA . M C `Z, -IG 12
I hereby grant Withers and Ravenel, INC permission to conduct environmental studies on
the property described above. In addition, I authorize Withers and Ravenel to act on my
behalf as my agent when conducting site meetings and/or correspondence (i.e. permit
applications etc.) with the USACE and the NC - Division of Water Quality, if necessary.
Pu>I?nci- '?' & ""d.- &-,, - Date: Los
GoYf c- (signatur )
TVAC"r
iii MacKenan Drive i Cary, North Carolina 27511 1 let: 919.469.3340 1 fax: [phone]oo8 i www.withersravenel.com
107 Stokley Drive i Suite 104 1 Wilmington, North Carolina 28403 1 let: 910.256.9277 1 fax: [phone]
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Date: 12-9-2004
Applicant/Owner: Centex Homes County: Wake
Investigator: Chris Flowers and James Dasher State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: UL
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: S bank of E-W stream
Is the area a potential Problem Area? Yes X No Plot ID: DP 1
of needed, explain on reverse.) 1 11
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Eulalia viminea Herb FAC+ 9.
2. Cinna arundinacea Herb FACW 10.
3. 11.
4. 12.
5. 13.
6. 14.
7. 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAC-): 100%
Remarks: Hydrophytic Vegetation Present
HYDROLOGY
Recorded Data (Describe in Remarks):
Stream, Lake or Tide Gauge
Aerial Photographs
_ Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
X Saturated in Upper 12 Inches
_ Sediment Deposits
X Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
_ Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: 0 (in.) X Water-Stained Leaves
_ Local Soil Survey Data
Depth to Free Water in Pit: >12+ (in.) FAC-Neutral Test
Other (Explain in Remarks)
Depth to Saturated Soil: 10 (in.)
Remarks: Wetland Hydrology Present
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Plot ID: DP 1
Rntt R
Map Unit Name : Cm Drainage Class: Somewhat Poorly Drained
(Series and Phase): Chewacla Field Observations
Taxonomy (Subgroup): Fluvaquentic Dy strudepts Confirm Mapped Type? _ Yes No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
inches Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-5 A 10YR 4/3 Clay loam
5-8 B 10YR 4/3 2.5YR 5/8 Clay loam
8-12+ C 2.5 YR 5/3 2.5YR 5/8 Clay loam
Hydric Soil Indicators:
Histosol Concretions
_
_ Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
_
Aquic Moisture Regime Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks: Hydric Soils Absent
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes _ No Is this sampling point within a wetland?
Wetland Hydrology Present? X Yes _ No Yes X No
Hydric Soils Present? Yes X No
Remarks:
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Date: 12-7-2004
Applicant/Owner: Centex Homes County: Wake
Investigator: Chris Flowers and James Dasher State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: WL
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: 10' from DP # 1
Is the area a potential Problem Area? Yes X No Plot ID: DP # 2
11 (If needed, explain on reverse.)
VFGFTATInN
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Alnus serrulata Shrub FACW+ 9.
2. 10.
3. 11.
4. 12.
5. 13.
6. 14.
7. 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAC-): 100%
Remarks: Hydrophytic Vegetation Present
HvnRnLnnY
Recorded Data (Describe in Remarks):
_ Stream, Lake or Tide Gauge
_ Aerial Photographs
_ Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
_ Inundated
X Saturated in Upper 12 Inches
X Sediment Deposits
Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
_ Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: (in.) X Water-Stained Leaves
_ Local Soil Survey Data
Depth to Free Water in Pit: 4 (in.) FAC-Neutral Test
_
Other (Explain in Remarks)
Depth to Saturated Soil: 0 (in.)
Remarks: Wetland Hydrology Present
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Plot ID: DP # 2
-SO!
Map Unit Name Cm Drainage Class: Somewhat Poorly Drained
(Series and Phase): Chewacla Field Observations
Taxonomy (Subgroup): Fluvaquentic Dy strudepts Confirm Mapped Type? - Yes No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
inches Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-4 A 10YR 4/5 Sand clay loam
4-12 B 2.5Y 5/2 Sand cla loam
Hydric Soil Indicators:
Histosol Concretions
_
_ Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
_
Aquic Moisture Regime Listed on Local Hydric Soils List
_ Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes _ No Is this sampling point within a wetland?
Wetland Hydrology Present? X Yes No X Yes No
Hydric Soils Present? X Yes No
Remarks:
-1 1
DWO Project
DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET
1. PROJECT INFORMATION (ple se complete followi g infl=ation):
Project Name V Q v' ok,v l o k ?) o S
Contact Person: I n ra.,,n i ?, a e,,- Phone Number: (9 14 ) (o =
Level Spreader ID:. zbb i e ON ? a v%q ? j) ry t' 1>o to
Level Spreader Length O O ft. (perpendicular to flow)
Drainage Area . Z ac. (on-site and off-site drainage to the level spreader)
Impervious Area ac. (on-site and off-site drainage to the level spreader)
Maximum Filter Strip/Buffer Slope 3 • % (6% for forested, leaf littler cover, 8% for thick ground cover)'
grass
Max. Discharge from a 10 Year Storm 'J9 .2 cfs
Max. Discharge to Level Spreader cf
Filter Strip/Buffer Vegetation C-r
Co%"hick ground cover or grass, canopied forest with leaf litter
groundcover)
Pre-treatment or Bypass Method &act ? S
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
tti/ Pre-Form Scour Holes are on flat slopes only
No structures are located in protected buffers'
If bypass method specified in the Draft Level Spreader Design Option Document:
c7 Bypass method is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
ePT O No structures are located in protected buffers.
Plan details for the bypass and outlets are provided.
The operation and maintenance agreement includes annual erosion and vegetation repair.
The operation and maintenance agreement signed and notarized by the responsible party is provided.
' Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.

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Note: See Overall Wetlands Impact Map For Area Location & Notes
WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
111 MCNEran Drive Cary, Wrtn Caroline 27511 tel [phone] fax' 919-467-fi008 wow witnersra,enel ccn

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0 . 25 . -- 50 75 2 of 3
WESTOVER PARK
WETLAND IMPACT MAP
TOWN OF CARY WAKE COUNTY NORTH CAROLINA
- -
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--- -------- -
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Note: See Overall Wetlands Impact Mop For Area Location & Notes o 25 So 75 3 of 3
WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
11] hacKenan Drive Cary, harm Carolina 27511 tel' 919-469-3340 fax: [phone]C9 - .ltnersra,enel con
WESTOVER PARK
WETLAND IMPACT MAP
TOWN OF CARY WAKE COUNTY NORTH CAROLINA
a
a
a
>
0
0
0
a
0
Y
f HUHUSED WETLANDS IMPACTS
ROADWAY & UTILITIES
IMPACT AREA LENGTH
LOCATION TYPE (SF) LF
GW1 Z1-IMPERV 256 --
CWI Z1-IMPACT 909 --
GWI Z2-IMPERV 101 --
UI Z1-IMPACT 1942 --
U1 Z2-IMPACT 1048 --
UI JW -- --
NOTES:
CW: CREENWAY, U: UTILITY
CH=Channel, JW=Jurisdictional Wetland
Z1-IMPERV = ZONE i NRB IMPERVIOUS
ZI-IMPACT= ZONE 1 NRB IMPACT
Z2-IMPERV = ZONE 2 NRB IMPERVIOUS
Z2-IMPACT= ZONE 2 NRB IMPACT
N
W
E
S
0 50, tar 200'
SCALE: 1x = Tar
N0.1 Revision Pate- B Designer Scale
W&R 1"= 100' sheet Na.
Crown By Data WESTOVER PARK OVERALL WETLANDS WITHERS RAVEN EL
CLS 07/21/05 IMPACT PLAN ENGINEERS I PLANNERS I SURVEYORS 1 of 3
Checked By Jcb No. 111 NacRenan Orive Cary, North Carolina 27511
RTO 204035.0 TOWN OF CARY WAKE COUNTY NORTH CAROLINA tel: [phone] wgw,withersravenel.com fax: [phone]
IMPERVt0U5 SURFACE AREA' 5.4 AC ..,_,,.- --- --• •--
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STORM DRAINAGE INLET CHART
Inlet Fun.fl 51 1 Drainage Inlet 5Y%t AIR FI...
C Int lln/nrl ree lace Fl Or lc eel Elev
Eke- [alt 0.05 6.6/ 0.61 3.15 319.82 711. 5.B
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CB23 0.05 6,95 0.'?/ 0.11 32000 727.58 I. SG
I' I - Bezu aes 7.8: 0 51 3.311 321.682 31,63 Las
--- r=_-ms's-- s -T - - - - I YI25 0.5 6.09 0.70 1.03 321,00 317.65 3.35
`- --_ _ _s - - _ - - i 1. 0.5 fi.9B 0 IT .20 . ]0 322.20 319,20 3.00
f.-_ - -_, -mss . 1 -- - ? _ - -- = ••,? '. YI2) 0.5 1.02 0.20 C. 770 324.00 320,50 7.50
`- r - ?? -- •I I Y128 0.5 7 22 0.20 0.2 325.00
t
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-- } J 1221 0.5 7 22 0.27 O.81 327.20 322.20 3 00
' PCEa2l7{G TY { tl 1 030 O.BS fi 98 0 09 0.77 329.10 ]21.10 5 00
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- - r ?_= ?- - ' ' -'..... • I C831 0.05 7.06 0,29 1.11 371.13 32fi.58 e. BS
a __t __ - „ , RF1 1ERy1( ?itlJy'T i '?15 '? I I C832 0 B 7 09 (1 2,47 331.80 327.05 4,75
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47 ?" L7 F•...,.. STORN DRAINAGE NOTES O!
ALL
1 10-YR STORM UCEJG SHOWN
J ??? ? p {' Jls • 44 ]J7 I I KL CONSTRUCTION 9+ALL BE IN ACCORDANCE WITH CUAAENi TOWN ho
1 ?00 I \ ?\ /; t 1E'A'. 3b `/' 111 "GRAN, Ii(T'I' Gf CARY STANDARD SPECIf1GTI0NS AND DETAILS. /'1?I
4 1 1 ?.?\??? ''.}. F f 1 .f lwt: •- . I 2. RIM ELEVATION LL cNEN B FOR LA CB IS TOP OF CURB AND FOR h TOP OF GRAZE.
I ?, } •n. 31, A,µ ° 1 }. ALL PIPING SHALL BE CLASS III REwF0A000 CONCRETE PIPE (RCP) P) UNLESS
TOY
L<? Tr I NOTED OTHERWISE
rC.°.;; " - I 1 / ALL PUBLIC STORM DRAINAGE FRA.ES. GRATES.'d HOODS Sw L BE STAMPED i
/'DRAINS 10 RIVER" IN ACCORDANCE WITH TOWN OF GRl' STANDARDS. '??'
1 ! ?6 ?\ \ '1Cy? ' iP ,?'a "S 5 rAAO NLEr ) GM?S SHALL BE 2'4}' AND SHALL BE APPROVED By OWNER pwvjlp
PRIORTOINST TION. EfQItlMtq_
`` PEE A?
RISER STRUCTURES AND BARRELS M15i BE ONSITE BEFORE THE GRAVING
4 .1 A ' F PER MI' 15 ISSUED.
D
DRAINAGE AND
flit \ V G"DT - Mu THE 70" OF°CA Y UNIFIED DELO MENTGO NANCE.y(aw ER v? (CHAPTER 7. M'DG) Ni FOR EROSION C
EN S
-... - -P 1'1 HAVE ALLCESS AANNO INWNED EASEMENTS LOGN 0 AROUND Cam DT INCLUDEPANE• •?Q'`C
.. OPERATIONS TWO MAINTENANCE MANUAL 0 2:PC
` FOS .....
Eb 9 IF THERE WILL BE A TRASH COMPACTOR ON THE SITE A CONNECTION TO SANITARY
ER MORR6V1 SEWER NON A
I _ _ _ _ _ _ COVERITCHESED ONOUMSITN5 ER SITE WILL BE REQUIRED
w ' - t PROUECT NEED TO BE MAINTAINED ON A ONLY BASIS.
?pII I 10 DIVERSION D
\ r? `` -? • ' ^'? ?? -ti?-f•- I THE LENGTH OF THESE DrvERSON DITCHES AND THE FACT THEY ARE SHOWN IN FILL
I IXt}ll TRACY pNE SLOPES MMES IT IMPERATIVE THEY FUNCTION ON A ONLY BASIS. 813Ic5 ' IN
/I' 1 ez?
9 I 1 ;.,',, 1 MORRJSVILLE P+R(W
I 1 1 j w'°1 AY C 7 0
§ ` 1 _? _ 3 7 7 100' PUBLIC R/W
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FOR LOW RIrOW OUTLET f`
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to'
WATER LEVEL DURING STORM
i RETAINING WALL
PEAK FLOW ATTENUATION POOL
ATPCN 4JNGP To Xwrr um '
SRO a Su?a,? MINIMUM SLOPE 3 : 1
EARTH DAM
• ANTI-FLOATATION DEVICE
ANTI-SEEP COLLAR
OUTLET PIPE
RIP RAP DISSIPATOR PAD W/ FILTER FABRIC
CROSS SECTION D`"u' RIP RAP 10'X1B'X25
STORM EVENT FLOW CFS ELEV. (FT
1-YEAR 6.89 316
10-YEAR 39.22 318.36
100-YEAR
LAB TOP TRASH PAU (SEE DETAIN

L PRECAST REINFORCED BOX
W ? EPAa
10-YEAR ST:RU E
EVATION Y rmcx SGLIULL
?d /A x7 1. TEEigR BOIiY
STRAPS RED '0
'0-RING' Jax
L__A
GRaR EACH SIDE

f CORE .J SKINNER FOR u
EROSION COW UL INSTAL
FULL PLATE ON INSIDE OF• VJ
RISER 4 R SITE IS
STABXRED AND LOW ROW 'O-NNG' GSKETED
• RISER 6 NNCTGNAL CLASS Y RCP
SKINNER ATTACH TEMPORARY'
PAVED INVERT ROU
A
??•"""111 CONCRETE ANTI-FLOATATION BASE
NTS BYPASS RISER
NOTE: CONTRACTOR TO SUBurr SHOP DRAWING TO ENGNEER FOR APPROVAL
VENT
SCREEN ACCESSDLE THROUGH DOOR
FLOAT
OUTLET END;
CONNECTION
TO RISER
BARREL PIPE LONGER THAN SHOWN
NOT INCLUDED WITH SKIMMER
SUPPLIED BE USER
FLEXIBLE JOINT
RMP SKIMMER DETAIL
NIS
NOTE:
USE 2.0• SKIMMER. SKIMMER MAY VARY SLIGHTLY FROM ILLUSTRATION
(LD) NM N 0 RING R COVER ACCESS
aFxr OVER SEEPS a DP.WOaW+ vv.Xt
X' MECASI CO NLAETE SL44
S TALL BLOCKING
V. SPACE
PRECAST REINFORCED BOTH
TYPICAL TRASH RACK
NTS
LOW FLOW OUTLET
nIIAFNSI FI
TOP OF RISER N A 'N A
ANTI-FLOATATION DEVICE N A N/A
OUTLET PIPE INVERT IN 48 LF OF 312.00
OUTLET PIPE INVERT OUT 12• RCP 0 1.04 311,50
ANTI-SEEP COLLAR 48'x48' N/A
DRAWOOWN INVERT IZ' OPEN END 312.00
BYPASS OUTLET
n-c,IcII-1?
TOP OF RISER 60•x60" ID 317.70
ANTI-FLOATATION DEVICE 96'x95X18' N/A
OUTLET PIPE INVERT IN 40 LF OF 312.00
OUTLET PIPE INVERTCUT 0' RCP 0 1.25% 311.50
ANTI-SEEP COLLAR 65X66' N A
DRAWDOWN INVERT 6' CORE
TEMP ONLY 312.00
t4 REAN 12'
.C. EACH WAY 1/Y PREFORUEO JOINT
F R. 1Y WIDE
ELEVATION SECTION
2000 PSF MIN.
BBELANG N C ryry SEE BIER SECTION FOR SIZING DATA
TYPICAL ANTI-SEEP COLLAR
NTS
NOTE:
BYPASS RISER BOX AND OIFL PIPE
BE INSTALLED PRIOR TO TFE N1II
OF OVERALL SITE GRADING V,
UTILIZED AS A SEDIMENT CI N 0.
DURING ROADWAY AND UTIL ;O
SKIMMER SHALL BE USED ! A
AS SEDIMENT FILTER BASIN. ( i
BEEN STABILIZED AND GRAS E
THE SKIMMER SHALL BE REI II E
BASIN SHALL BE CLEANED
05-S
APPRO
TOWN OF
AWv ad by
EnGIIIXIerkq •• _ITP
FOR EROSION CONTROL, STO= Al
DRAINAGE AND GRADING ONLY ,' IyDD
I
0 10 RT TI
XAM rear
WITHERS RAVENEL
9 n r)- 1 l) r ,,
Mf0TH EMS MAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
September 1, 2005
US Army Corps of Engineers
Attn: Mr. Monte Matthews
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
NC-Division of Water Quality
Attn: Ms. Debbie Edwards
2321 Crabtree Blvd.
Raleigh, North Carolina 27604
Re: Westover Park - Request for NWP 12 and Buffer Compliance
Dear Mr. Matthews and Ms. Edwards,
On behalf of Centex Homes, we are requesting authorization from the USACE to use
NWP 12 for the installation of a utility line and buffer compliance from the NC-DWQ for
the construction of a boardwalk that will impact Neuse riparian buffers. Please note that
because the utility is less than 40 feet in width and crosses the stream at a perpendicular
angle, 401 approval is not required from the NC-DWQ.
The subject is property is located on the west side of Davis Drive, just north of the
intersection of Morrisville Parkway and Davis Drive, in Wake County, North Carolina.
The site is bounded on the north by Nancy Branch Creek. The project is located in the
Neuse River Basin. A wetland delineation was conducted by Soil and Environmental
Consultants. Wetlands on-site are confined within the Neuse Riparian Buffer. With the
exception of the greenway and the utility line, no buffer impacts are proposed. A wetland
map will be submitted under separate cover.
The proposed impacts consist of 30 linear feet of temporary channel impact and 0.005
acres of temporary wetland impact. Buffer compliance is needed for a wooden
boardwalk that will cross Nancy Branch Creek. The boardwalk will not impact the
stream channel itself.
Because the impacts are temporary, no mitigation is proposed for the utility line. In
addition, we do believe mitigation will be required by the NC-DWQ, because greenway
trails are allowed in the riparian buffer, with prior approval.
Please feel free to call if you have questions or require additional information.
Sincerely,
Todd Preuninger E ? Withers and Ravenel SEP 1 2005
Attachments - 1) PCN Form, 2) Data Forms, 3) Site plans, 4) Stormwater details
5) Agent Authorization, 6) DWQ worksheets, 7) USGS Quad, 8) SaN WE N AtdU`'dtTER QUALITY
ORfdWATER BRANCH
iii MacKenan Drive i Cary, North Carolina 27511 1 let: 919.469.3340 1 fax: [phone]oo8 i www.withersravenel.com
107 Stokley Drive i Suite 104 1 Wilmington, North Carolina 28403 1 let: 910.256.9277 1 fax: [phone]
Office Use Only: Form Version March 05
n ;D
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
? 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: 12
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here:
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for fw q ?m Nk h ere: El r4
1.9
II. Applicant Information
SEP 1 2005
1. Owner/Applicant Information OEh'R - WATER QUALI7Y
Name: Centex Homes %tiETLMDS""DS-?
Mailing Address: Attn: Kelly Race
2301 Sugar Bush Road - Suite 400
Raleigh, North Carolina 27612
Telephone Number: 919-781-1952 Fax Number: 919-571-8346
E-mail Address: [e-mail]
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Todd Preuninger
Company Affiliation: Withers & Ravenel
Mailing Address: 1 11 MacKenan Drive
Cary, North Carolina 27511
Telephone Number: 919-469-3340 Fax Number: 919-238-2099
E-mail Address: [e-mail]
Pa-e I of'
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Westover Park - Greenway and Utility Line Installation
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 0745417951, 0745416347.0745415264
4. Location
County: Wake Nearest Town: Morrisville
Subdivision name (include phase/lot number): Westover Park
Directions to site (include road numbers/names, landmarks, etc.): Property is located on the
western side of Davis Drive approximately 1500' south of the intersection of Davis Drive
and Morrisville Caq)enter Road.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.8153142 ON 78.8504443 °W
6. Property size (acres): 33.96
7. Name of nearest receiving body of water: Crabtree Creek
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.st.ite.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is currently a wooded tract of land while the land
use in the vicinity o_f the project is primarily residential.
Paste 2 of '2
10. Describe the overall project in detail, including the type of equipment to be used: The
proposed project consists of the construction of a subdivision greenway trail, and utility line
installation Typical heavy equipment associated with land clearing and grading will be used
to prepare the site for construction.
11. Explain the purpose of the proposed work: The purpose of the proposed work is to provide
housing for residents of Wake County and agreemvay trail for residents of the subdivision.
Temporary impacts to Nancy Branch Creek are proposed for the installation of a sewer line.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. A detailed delineation was conducted by Soil and Environmental
Consultants. The delineation map will be submitted under separate cover. Data Forms are
included with this application in support of the delineation.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
None anticipated
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Project impacts consist of 30
P• ,,e 3 of 3
linear feet of temporary impacts to a perennial channel for utility line installation and 0.005 acres
of temporary wetland impact.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) (yes/no) (linear feet)
U1 Temp. excavation Forested Yes Adjacent 0.005
Total Wetland Impact (acres) 0.005
3. List the total acreage (estimated) of all existing wetlands on the property: None within
project footprint. Wetlands are located within the Neuse riparian buffer, however these areas
were not delineated (with the exception of the sewer/greenway corridor), since they will not
be impacted by the proposed development.
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Stream Impact Perennial or Average Impact Area of
Number Stream Name Type of Impact Intermittent? Stream Width Length Impact
(indicate on ma) Before Impact (linear feet) (acres)
Ul UT to Crabtree Crk Temp. Excavation Perennial 10 30 0.00688
Total Stream Impact (by length and acreage) 30 0.00688
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact
Name
Wat Type of Waterbody Area of
Site Number
e)
pplicabblle)
(if applicable)
Type of Impact
(lake, pond, estuary, sound, bay,
Impact
(indicate on map) ocean, etc.) (acres)
N/A N/A N/A N/A N/A
Total Open Water Impact (acres) N/A
6. List the cumulative impact to all Waters of the U.S. resulting from the project
Stream Impact (acres): 0.00688
Wetland Impact (acres): 0.005
Open Water Impact (acres): N/A
Total Impact to Waters of the U.S. (acres) 0.011
Total Stream Impact (linear feet): 30
Paec 4 of 4
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
N/A
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dairdembankment, excavation, installation of
draw-down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A
Current land use in the vicinity of the pond:
Size of watershed draining to pond: N/A Expected pond surface area: N/A
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
No impacts are proposed as part of the construction of the S/D. However, in order to provide
sewer, its necessarv to cross the creek to tie into the existing sewer. Wetlands and a perennial
stream channel will be impacted temporarily.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
Page 5 45
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
httV://l12o.enr.state.nc.us/newetIands/strni.ide.htnil.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Because impacts are temporary, no mitigation is proposed
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://1i2o.enr.state.nc.us/wr2/index.litm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A'
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Page 6 o1'6
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
X.
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from . the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 1165 3 (2 for Catawba) N/A
2 101 1.5 N/A
Total 1266 N/A
* Zone I extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Please note, the buffer impacts listed above are for the greenway trail. The utility line will impact 2,990 SF of riparian
buffer (Zl: 1,942 and Z2: 1,048). Total buffer impacts consist of 4,256 SF.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 213 .0242 or.0244, or.0260.
Because the utility line crosses the buffers at a perpendicular am le_and because the corridor
is less than 40 feet in width this is considered an exempt activity and does not require
mitigation Additionally greenway trails are an allowable activity within the buffer as long
as prior approval is granted and do not require mitigation
Page 7 of 7
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
Stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. Currently the site contains no impervious
surface When the project is complete the site will contain 33.73% impervious. During
construction measures will be taken to protect downstream water quality (e.g. temporary
sediment basins) Following construction the applicant will utilize dry ponds, forested filter
strips and level spreaders as required by the Town of Cary and the Neuse Buffer Rules.
Because 401 certification is not required for this project we do not believe a pre-approved
Stormwater management plan is required
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sanitary Sewer
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://112o.enr.state.nc.us/ncwetiands. If no, please provide a short narrative description: The
proposed project is not anticipated to result in additional development in this area. The adjacent
properties have already been developed or are in the process of being developed. During
construction the applicant will employ erosion control measures to protect water quality down
stream of the site Following construction the applicant will
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
Page 8 of 8
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
NA

Applicant/Agent's Signature " bate
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
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!N<;INttN1 I YI ANNf N� I \IIN VIYtI H'. / t � l� 1�r
111 MacKenan Drive Cary, North Carolina
telephone, 919469.3340—..therara nol com lara�� - • • t d ' ` (�A., j �. /I,.
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Pro'ect #204035
August 19 2005

WAKE COUNTY, NOR7H CAR
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ENGINEERS I PLANNERS I SURVEYORS
A
Site Access/Agent Authorization Forni
Project Name: Q C
Property Owner/C-ontract Purchaser:
Address:
C `f,7(,g ) 17-
I hereby grant Withers and Ravenel, INC permission to conduct environmental studies on
the property described above. In addition, I authorize Withers and Ravenel to act on my
behalf as my agent when conducting site meetings and/or correspondence (i.e. permit
applications etc.) with the USACE and the NC - Division of Water Quality, if necessary.
Prc-9tvrtcr- Date: DCJ I ?S
(signatur )
iii MacKenan Drive i Cary, North Carolina 27511 1 tel: [phone] fax: [phone]oo8 i www.withersravenel.com
107 Stoktey Drive i Suite 104 i Wilmington, North Carolina 28403 1 tel: [phone] i fax: [phone]
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Date: 12-9-2004
Applicant/Owner: Centex Homes County: Wake
Investigator: Chris Flowers and James Dasher State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: UL
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: S bank of E-W stream
Is the area a potential Problem Area? Yes X No Plot ID: DP 1
(If needed, explain on reverse.)
VFGFTATIDN
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Eulalia viminea Herb FAC+ 9.
2. Cinna arundinacea Herb FACW 10.
3. 11.
4. 12.
5. 13.
6. 14.
7. 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAC-): 100%
Remarks: Hydrophytic Vegetation Present
HYDROLOGY
_ Recorded Data (Describe in Remarks):
_ Stream, Lake or Tide Gauge
Aerial Photographs
_ Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
_ Inundated
X Saturated in Upper 12 Inches
_ Sediment Deposits
X Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
_ Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: 0 (in.) X Water-Stained Leaves
Local Soil Survey Data
Depth to Free Water in Pit: >12+ (in.) FAC-Neutral Test
_ Other (Explain in Remarks)
Depth to Saturated Soil: 10 (in.)
Remarks: Wetland Hydrology Present
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Plot ID: DP 1
Snu_S
Map Unit Name : Cm Drainage Class: Somewhat Poorly Drained
(Series and Phase): Chewacla Field Observations
Taxonomy (Subgroup): Fluvaquentic D ystrudepts Confirm Mapped Type? _ Yes No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
inches Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-5 A 10YR 4/3 Clay loam
5-8 B 10YR 4/3 2.5YR 5/8 Clay loam
8-12+ C 2.5 YR 5/3 2.5YR 5/8 Clay loam
Hydric Soil Indicators:
Histosol Concretions
_
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
_
_ Aquic Moisture Regime Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks: Hydric Soils Absent
L_
J
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes _ No Is this sampling point within a wetland?
Wetland Hydrology Present? X Yes No Yes X No
Hydric Soils Present? Yes X No
Remarks:
11 1
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Date: 12-7-2004
Applicant/Owner: Centex Homes County: Wake
Investigator: Chris Flowers and James Dasher State: NC
Do Normal Circumstances exist on the site? X Yes No Community ID: WL
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: 10' from DP # 1
Is the area a potential Problem Area? Yes X No Plot ID: DP # 2
(If needed, explain on reverse.)
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Alnus serrulata Shrub FACW+ 9.
2. 10.
3. it.
4. 12.
5. 13.
6. 14.
7. 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAC-): 100%
Remarks: Hydrophytic Vegetation Present
HYDROLOGY
Recorded Data (Describe in Remarks):
_ Stream, Lake or Tide Gauge
Aerial Photographs
_ Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
X Saturated in Upper 12 Inches
X Sediment Deposits
Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
_ Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: (in.) X Water-Stained Leaves
_ Local Soil Survey Data
Depth to Free Water in Pit: 4 (in.) FAC-Neutral Test
Other (Explain in Remarks)
Depth to Saturated Soil: 0 (in.)
Remarks: Wetland Hydrology Present
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
Project/Site: Davis Drive -Hatcher Tract S&EC # 9211.W 1 Plot ID: DP # 2
SOILS
Map Unit Name Cm Drainage Class: Somewhat Poorly Drained
(Series and Phase): Chewacla Field Observations
Taxonomy (Subgroup): Fluvaquentic Dy strudepts Confirm Mapped Type? _ Yes No
Profile Description:
Depth Matrix Color Mottle Color Mottle Texture, Concretions,
inches Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-4 A 10YR 4/5 Sand clay loam
4-12 B 2.5Y 5/2 Sandy clay loam
Hydric Soil Indicators:
Histosol Concretions
_
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
_
Aquic Moisture Regime Listed on Local Hydric Soils List
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes - No Is this sampling point within a wetland?
Wetland Hydrology Present? X Yes No X Yes No
Hydric Soils Present? X Yes No
Remarks:
.1 11
DWQ Project No.
DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET
1. PROJECT INFORMATION (ple se complete followipg inf ration):
Project Name : -9 V Q_ r 0?1 o k,?1 o S
Contact Person: I n rev v% h a e? Phone Number: (9 14 ) ?o
Level Spreader ID:. % bb i P V, v>q tn
Level Spreader Length 100 ft. (perpendicular to flow)
Drainage Area . Z ac. (on-site and off-site drainage to the level spreader)
Impervious Area ac. (on-site and off-site drainage to the level spreader)
Maximum Filter Strip/Buffer Slope 3 • % (6% for forested, leaf littler cover, 8% for thick ground cover)`
grass
Max. Discharge from a 10 Year Storm ?9 ,2 cfs
Max. Discharge to Level Spreader cf
Filter Strip/Buffer Vegetation .?p?Cp?,(thick ground cover or grass, canopied forest with leaf litter
groundcover)
Pre-treatment or Bypass Method
?q??? S
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
k/ Pre-Form Scour Holes are on flat slopes only
?2;?b No structures are located in protected buffers'
If bypass method specified in the Draft Level Spreader Design Option Document:
Bypass method is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located in protected buffers.
Plan details for the bypass and outlets are provided.
The operation and maintenance agreement includes annual erosion and vegetation repair.
The operation and maintenance agreement signed and notarized by the responsible party is provided.
' Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.
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GRAPHIC SCALE ('-50' DATE: 07121105
Note: See Overall Wetlands Impact Mop For Area Location & Notes
WITHERS & RAVENEL
ENGINEERS I PLANNERS 1 SURVEYORS
111 NaCNenan Drive Cary, Wrtn Carolina 27511 tel [phone] Ia, - 919-467-6008 www wi tner sr avenaI com
0 25 50 75 12 of 3
WESTOVER PARK
WETLAND IMPACT MAP
TOWN OF CARY WAKE COUNTY NORTH CAROLINA
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Note: See Overall Wetlands Impact Mop For Area Location & Notes 0 25 50 75 3 of 3
WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
111 NacKeoan Drive Cary, North Carolina 27511 tel' 919-469-3310 lax: 919-467-COC8 www rltnersravenel com
WESTOVER PARK
WETLAND IMPACT MAP
TOWN OF CARY WAKE COUNTY NORTH CAROLINA

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CLS 07121105 ENGINEERS I PLANNERS I SURVEYORS 1 of 3
Cne74Pd ey J°n No. IMPACT PLAN III Nac Nenan Drive Cary. North Carolina 27511
RTO 204035.0 TOWN OF CARY WAKE COUNTY NORTH CAROLINA tel: [phone] "N,witnersravenel.com fax: [phone]

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Inlet
Name
R-11
C
S111ee
]nt lln/nrl SIUHM UIWNAL?_ INLLI GNANI
D,.1-9. 1,,1.L Sr7t Rte
Tree lecl FI ow 1[441 Elev
F30Pr
Elev
604
De0tn 1111
P'F Der Intel
Ito. Iclel
1811 0.85 6.61 0.61 3.45 319,82 311.00 5 12 1.01
CB 12 0.85 1.15 0,26 1,41 319.19 311.51 5 22 0.13
0820 O.B5 5.72 0.16 0.91 319.99 315.58 A a0 0.27
CB21 0.85 6.19 0.28 1.62 321.68 316.68 5.00 0,18
C222 0.15 6.89 0.11 0.23 326.24 321.74 1.50 0.07
C823 0.85 6.95 0.'1 0.A1 329.08 323.58 4.50 0.12
CB21A 0.85 7.2; 0.5A 3.314 321.682 317.63 1.05 0.97
YI2S 0.5 6.89 0.30 1.03 321.00 317.655 3.35 0.52
Yltfi 0.5 as 0.20 0.70 322.20 319.20 3.00 0.75
Y127 0.5 1.02 0.20 0.10 3N.00 320.50 3.50 0,35
-- - - 'k?` - - - - "/'0- C;::; -! - 'I I ri2B 0.5 7 22 0.20 0.72 325.00 322.00 3.00 0.35
0. co
I '
[ r722A 0.5 1. zz 0.23 0.03 325.20 322. 20 7.00 o. e2
i
?_ ? Ai• ) 112
1??? K1M1NG W i ?_ µ":?' S "' -•' OA' I CB30 O. BS 6.98 0 19 0.53 329,78 32e.7B 5.00 0.16
CB31 O.BS 7.06 0.29 1.11 331,13 326:7a 4.85 0.51
'?- s -? ??T --.; ;,IXSE }. I 'q } - •'? 'I 1 CB32 0.85 7 09 0.41 2.41 331.80 327.05 4.15 0,13
1113 0.5 7.22 0,41 1.59 332.00 329.50 3 50 0.19
CB70A 0.15 7.22 0.12 0.67 129 65 325.23 A A2 0.22
'i _ ' • ?? CB 1 0 BS 1 13 0 10 2 13 321 ]8 ]19.21 1 0 11
i_
192 0.85 ].IB 0,31 2.01 321.11 319.61 !6 061
1143 0.5 1.22 0.68 2.46 321.50 320.50 4.00 1.23
?- - OETENIIGI7 .• - .. 'J I 6 b9 0. ENTRANCE CB51 0?9s 6.73 C9 0 o. 55 321.12 315 63 4."to 0 15
86 0.22 20 a
CB 51 0.85 6.18 0.29 1.61 32].64 ]18.64 5.00 0,A9
5- _ ]2I. 11, O O 'O }f0 I :.1 [851 0 .85 1.13 0.04 0.21 321.09 319.89 1.20 0.0]
_ / CR1Dm PAD ® 9 g0 n 3 '?, " CBSS 0.85 7.19 0.03 O.IB 327.18 320.78 5.00 0.05
_ 1 I ql QEYAT N ) JtA. }7A 3yQfi }+6_ 'I ?'?? ? H I GE55fi 0.5 1.22 0.30 I.Otl l2] 25 322.00 N/A 0 54
_= ..sss_ l - A - 0 V]11 PI ?` 12. ?- , 9 a C0514 0.15 1.22 0.25 1.354 321.12 317.21 3.91 0.45
T- : 7 P o, i
[860 0.65 6.85 0.19 1.11 328. as 323.69 1.15 0.37
. 0.1
-Y s Q ?,.? `?I f I l ))I -I CB61 O. BS 1.06 0.09 0.54 331. 172 321.32 1 50
ITO b 6
11163 0.5 7 22 0.52 1.88 333.00 329.50 3 50 0.94
`/ -....? ]7 65
- I 5 M I I F ' 96 H7 0 ? 1 el S 4 ? Y160A 0.5 ).22 0.28 1.011 328.5 325 7.5 0.51
]I) 2 ' .E I oe U U
1 g TTa I O1 C1101. D.65 7.22 0.25 1.53 331.89 321.12 1 11 0.15
I - __ T ? 129 J. ,'I I ; y OW
-^- •7Q;AETUxINC e'Y?" r tt ° 7 :' 2
rl
? STORY DRAINAGE PIPE CHART
- o
I
31 ( ^ A I,P+r 7y,.1 ;1; 4 1 CS U? Uq U$ Pipe P104 P4rcenl 0lecnerge re9e
2r'? ?./?J •? I I I Inlet Inlet Invert invert 5114 l4npinl/11 Slane Iclsl rel Alt/sl
?:
FE5ff0 CA 11 313.00 311.00 36 CIA 67.82 Y.47 37.2t 9.52
56 _ .I? l C / ( O- -V •O e, J13 _ 101.E 11 ( CBI CB12 3fA, 20 711.51 36 Dle 27.00 1.31 33. B3 7.11
W )]A I C812 CB20 717.19 315 50 2/ 010 55.90 0.85 15 51 5.29
_ I •' (?'' ]A N?1 .? III I
e
.O ]23 315 ' ]ZS I i i I 0620 CB22 315.10 316.68 21' D 105 00 0.06 15.87 5,72
F - E SiS. L ! M 0021 CB22 317.10 321.74 IS, Di.. 190.87 2.29 B 20 8.16
u M '. l I:I
.?? - '1 43; '} O Q C823 0923 321.9A 323.50 IB- DI.. 01,71 1 .B7 7.27 6.85
\ - . O J73. s'' /'•• .. RECIJ NG W ,, uy ? 3JA 3 n2 a i C321 CE21A 311,43 317.63 15' Ole. 27.00 0.74 3.31 2 70
s
F _- ,(P --. •'?l I C821 Y125 317.50 317.65 I Ou. 12.00 1.29 7.10 2.5]
7 ( O - ti / •' 'I 1 1 Y125 1126 317.87 ]19.20 15' 114 84 52 1,60 2.09 1.21
(? e Rk r ,fir ,?? I 3 _ -'!; w 7q ' 'ii Y'ar W'I I YI2B Y127 319.40 ]20.50 17' OIa, 16.19 2.38 1.40 7.29
,
I E, - ?? 444 'O ]N T Y127 r12B 320.70 322.00 17' Die. 135.75 0.95 0.72 3.30
} •?` 1 ? 329
022 r122A 321.99 322.20 1501e. 12.80 1.64 0.63 0.68
1 p ,{ vQ( , AI,' _ •29 O'' -fC - O )15 O 33 ,r J3 r CB23 C131 323.11 325.78 18' DI1. 11 `h 1.94 6.85 1.25
. c_ \ .. ,
.98 3 0 S4 b. 75 7.76
C 31
C8301 15' 111, 380.2s I . - A03 4.55
i ?,'\\\
n . 1 O ?• C
Al
B32 r831 32725 32850 15' 011. 95 01 1,30 1. 9 3.79
If -_ \ \ \\?; 6?, /1 '`I „y I I 0830 C910A 325.01 325.23 15' Ofe 21 12 0.73 0.65 0 50
Jvl 7i O {r+i[ I / I FE510 Call 318.00 319.21 2A' DI. A8.00 2.52 6 91 7.41
ON I ALL -1 1 CB11 CaA2 3;:: 11 719.51 21' 1;:: 28.52 0.10 4.51 2.98
YI13 ]81 720.!0 24' D40,00 7.17 2.46 1.55
r_,? 'A 3 4 - O ?Q , '7{ „ I I 1 I CBA,
.5 "0 -y I I I\VY CB12 C850 317.19 317.6] 11' 010 59.73 0.11 15.02 5.10
C850 C051 315.87 711.2fi N' 011. 57 18 0.71 15,61 A.99
0851 0852 316. A6 328. 25 21' 010. 41 93 3.15 13.61 B.AO
0 .00 10.87 1.13
CB52 CB53 318 79 ]18.81 21 Ole 29,1 1
\'4.??\ 3 - ?/1,,'' • A A J79 731 1791-r•Ti I 1 C553 [B54 319.39 319.89 17 011 A9 79 1.01 149 1.90
3.09 320.18 15' 010. 75.54 1.25 1.26 1.27 ?
C854 CB55 20
H52
'? `\\` ?\ ROS? '1 ,jq I•N 7 CB» PE555 320.98 32z0D x'020. n.ES 7,z0 1.09 5.2s
CB51 08511 317.01 317.21 15' Ofe 27.00 0.74 1.35 1.10
\\ Nf'k, /h" '? ]31. I ?•t+yl ! - 0853 LB50 31B.B9 323.69 19' 110. 168.03 2.85 1.17 9.86
j\\ 'N1f1 7'V p(! ?/f \ O M5? r? +O 1 ' • C560 CB61 727.89 321.8 IB" 018. 127.06 1,79 5.98 0.09
TO l M DI 1 UY C851 CB52 327.52 329,05 10' DI. 11.57 1.19 3.95 1.21
1 \\ Oh 1, `1?1 /I'? C '$CIIONNG WA1 "-? O F,.e I N D C862 YI6] 328.27 329.!0 17' 01e 97 00 1.32 I. BB 1.70
3 510 ???'?•y 41 1860 rffiD. 727.e9 325 . oD 15• 111, 97.16 1.17 2.01 1.27
''\ ? ? q?\ l 3 351 ?wa 7 W / 0851 C061A 321.8 327.72 15' 011, 27.13 0.74 1.73 1.27
I I A'? V !9 rIM A
I . ?S,?P,(?49
A' ?\ \ I rlab, y? ?% ?7 I I STORM ORAINAZE NOTES
LJ.7
10-YR SMR61 EVENT SHOWN
A \' \ OD Y ,`' 6 1J I I ALL CON57RUCTbON SHALL BE IN ACCORDANCE WITH CURRENT TOWN
•' /', _ 336 ,_ 'LMV, RF,T 9E GARY STANDARD SPECIFICATIONS AND DE111L5 APPROVED
A ?5 I 2. RIM FL[VADDN GIVEN FOR CB IS TOP OF CURB AND FOR YI IS TOP OF CRATE. ?03A/
' 3 \ \ F "?L r of 7 3 ,ALL PIPING SHALL BE CLASS Ip REINFORCED CONCRETE PIPE (RCP) UNLESS ?` OF CMl
1 _ _ _ I VI 1•M?4 I NOT[0 OTHERWISE.
1 _ _ _?` ;?\ \, • r r.a •4 - ?( m•t y;'-' I / ALL PUBLIC STORM DRAINAGE FRAUFS, GR+RS,'Y HOODS Swul BE STAMPED Dubm
1 k \ 1 ti ' lit, RT DRAINS TO RNER' IN ACCORDANCE WITH TOWN OF CARY STANDARDS. ??
?\ I ?? •/ '•...:? ',,, i ? 1'^4' S/YARD INLET (1l) GRATES SHALL BE TS' AND SHALL BE APPROVED Bi OWNER PLNIhp Dais_
PRIOR TO INSTALLATION, E11gtriewtIQ DWe
6 RISER STRUCTURES AND BARRELS MUST BE ONSIIE BEFORE THE GRADING
PIJObO5F0 7 PERMIT IS ISSUED.
FOR EROSION CONTROL c
7 THE PROJECT YALL uCR Au THE RCOUIR[uCNR RELATIVE TO BEST MLI 4ff
THE .ENT 1 STOR
.. ; ?k TREE N .....A
F NA 1
W wr ,?-' yer PRACTICES AND ENGINEERED S10RUwITER CONTROL STRUCTURES AS OUIUNCU N I DRAINAGE, AND p AFIIN , ,
?c;\\., v _ ...,.......
CHAPTER
10wN 0 (CIUYIER 7. PART 3.7 ,LDO)
r ,
A?::?\\, f KoR F CARP UNFIEO DEVELOPMENT ORDNANCE NW ...................... NG WALL _
iE
I B LEVEL SPREADERS DN THE PRD3ECT ANSI BE LOU DON COMMON OPEN SPACE
?Pwt :
_ . .......
2,P09
OHAVE PERA pN5 m 7L DMUNrE ?H MCW?AMOR ANUAL ?D? DATED E EiSITE A iwCECAGREEMENi 10
ONN TIDAL TO SANITARY
I I PER MRRRSVI}(.E " \S SEWER AON A COVERED DUMSTFR SITE WILL BE REQUIRED. INCLUDE
I - - - - - - I A 10. DIVERSION DTCHES ON THIS PROJECT NEED TO BE MNNTMNED ON A ONLY BASIS.
THE LENGTH OF THESE DIVERSION DITCHES AND THE FACT THEY ARE SHOWN IN FILL
/0? • ?. I '
?i? ROPES MFIES IT IMPERATIVE THEY FUNCDON ON A ONLY BASIS. U 2
I i I IX4D IR4C7 ?1NE ti-/ -r,--
MORRISViLLE P,7,PKWAY B 23' m
113 ea a A 100' PUBLIC R/W
.U 9.a` IE I .OT
I I e ry
9a lit
WESTOVER PARK STORM DRAINAGE, EROSION WITHERS RAVEidEL
ENGINEERS I PLANNERS I SURVEYORS
CONTROL, & GRADING PLAN 3 a 11
Ill V0,Ke De bin Cry, NDM C-A. 27511 let 919-4E9-3340 1.; 919-461-6CFe -Arlher mvenamm
- 310
I I b ?
BYP'ASS,'bUTLET
/ x
J OW FLgW OUTLET :3.13 I
-x 9.6
100 LF LEVKL SPREADER -_=====
'320 ,
L
FOR LOW RIOUJ OUTLET I -?
Y QETENTION PON '
1 1'"' I ' ' .1 I
I I 7 I I 1 1 , ,'?
I O I V I I i01 I /'
----------------
yti FS1 10
,?' , SEr I I , , OD
12 '
j 321.0
% ,-' 32 0
- /- 322.0
' /// 8, I I I _, I I
- -h F} . / / 1 , I I I
I-
rrI 7
i 322.0 ' MH40
U5
- N J I II
I
323.0 ?/ ? ? , ? I 'I I
WATER LEVEL DURING
PEAK FLOW ATTENUATION POOL
pm Arva Rnuol ro avcE ulnt III
STsm?Mrr nRRxsx '
ANTI-FLOATATION DEVICE' I J \
ANTI-SEEP COLLAR ////
OUTLET PIPE.
RIP RAP DISSIPATOR PAD W/ FILTER FABRIC
CROSS SECTION CLASS I RIP RAP 1o'x19'x26"
)W CFS ELEV. (FT)
6.89 316.77
39.22 318.36
57.74 318.5B
M Deer 5mb
W TIWo
L - DLde{q )3bW
10'
r-?
RETAINING WALL
MINIMUM SLOPE 3 : 1
EARTH DAM
SUB TOP TRASH RACK (SEE DETAIL)

Y ?' PRECAST REINFORCED BOX
ID-YUR STORM ELkNigN IT THICK SCEIIALL
4' qLXRAP
,rST
AN, H
R REO'O
'O-RING Ja
u
u CR.I SIDE
u
e' CORE SKIM MOR FOR
EROSION CONTROL INSTALL
FlAl RIS R o?gs?OeS
STABILIZED AND LOW FLOW Lr 'o-mNc- GASKERFD
RISER 5 FUNCTIONAL CLASS pI RCP
SXRWER ATTACH TEIPoRA4(
IA7. INVERT R.0 411
. CDNAETE ANTI-1AATATpN BASE
NTS BYPASS RISER
NOTE: CONTRACTOR TO SUBMIT SHOP DRAWING TO ENGINEE R FOR APPROVAL
WESTOVER PARK
SCREEN ACCESSIBLE THROWN DOOR
?- iiDAI
OUTLET ENO;
CONNECTION
10 RISER
BARREL PIPE LONGER THAN SHOWN
NOT INCLUDED WITH SKIMMER
SUPPLIED BY USER
FLEXIBLE JOINT
BMP SKIMMER DETAIL
MS
NOTE:
USE 2.D" SKIMMER. SKIMMER MAY VARY SLIGHTLY FROM ILLUSTRATION
O
MANHOLE RING TE COVER ACCESS
OFFSET ET Er OVER STEPS t DMWIDOWN VALVE
1' PREAST CONCRETE SUB
TALL BLOCKING
VOID SPADE
PRECAST REINFORCED BOx
TYPICAL TRASH RACK
MS
LOW ROW OUTLET
nMFNSIIONS I FI EV.?
TOP OF RISER N A 'N A
ANTI-FLOATATION DEVICE N A N/A
OUTLET PIPE INVERT IN 49 LF OF 312.OD
OUTLET PIPE INVERT OUT IY RCP 0 1.04. 311.50
ANTI-SEEP COLLAR 49'x49" N A
DRAWDOWN INVERT 12" OPEN END 312.00
BYPASS OUTLET
f n T R-T?
TOP OF RISER 60"x60' 10 317.70
ANTI-FLOATATION DEVICE 96"x96"x16" N A
OUTLET PIPE INVERT IN 40 LF OF 312.00
OUTLET PIPE INVERT OUT 0' RCP 0 1.Ztl% 311.50
ANTI-SEEP COLLAR 66"x66" N/A
DRAWDOWN INVERT 6" CORE
TEMP ONLY 312.00
NOTE:
BYPASS RISER BOX AND OUTLET PIPE SHALL
BE INSTALLED PRIOR TO THE BEGINNING
OF OVERALL SITE GRADING AND SHALL BE
UTILIZED AS A SEDIMENT CONTROL DEVICE
DURING ROADWAY AND UTILITY CONSTRUCTION.
SKIMMER SHALL BE USED SO BASIN FUNCTIONS
AS SEDIMENT FILTER BASIN. ONCE SITE HAS
BEEN STABIUZED AND GRADING IS COMPLETED,
THE SKIMMER SHALL BE REMOVED AND THE
BASIN SHALL BE CLEANED OUT AND STABILIZED.
O5-SP-033
APPROVED
TOWN OF CARY
APVomd by- Date
PMTnYm DfmE
I FOR EROSION CONTROL, STOAW
DRAINAGE AND GRADING ONLY
D 17 07 a ?,R? T El1L?'"," EV
96Ne R.7v
7_1
STORMWATER MANAGEMENT PLAN WITHERS & RAVENEL
ENDINEERS IRS
I SURVEYOR t tlI NxXeml Dive Cary, NRM CmofKN 17511 kl. 019-169-]7W Im: O19-J67-6850 wr
tD4 REBM 12'
AC, EACH WAY - I/Y P WIDE
JOINT
// F R, It EF YMED
WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
/1/
iii MacKenan Drive 05 1
ATTENTION Debbie Edwards
CARY, NORTH CAROLINA, 27511
F'110NE 8
[phone] RE
FAX [phone]o0 ?? r? V 1111 Westover Park
To: DWQ SE ?' 1 7005 V
2321 Crabtree Blvd DEN„ -11ATERIWI
WETLANDS N-- s???A
Raleigh, NC 27604
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
REMARKS:
Please feel free to call with any questions.
w Qd? C?
LETTER OF TRANSMMAL
? Resubmit
? Submit
? Return
JOB NO.
20403
- copies for approval
copies for distribution
corrected prints
COPYTO: US Army Corps of Engineers SIGNED: Todd Preuninger
if enclosures are not as noted, kindly notify us at once.
WE ARE SENDING YOU ® Attached ? Under separate cover via the following items:
? Shop Drawings ? Prints ? Plans ? Samples ? Specifications
? Copy of Letter ? Change order ? Diskette ?