20030018 Ver 1_Complete File_20031022

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October 22, 2003
Mr. Roy B. Fitch, Jr.
Fitch Creations, Inc.
2000 Fearrington Village
Pittsboro, NC 27312
Dear Mr. Fitch:
Subject: Extended Detention Wetland
DWQ Project No. 030018
Chatham County
This Office is in receipt of the plans dated September 22, 2003 for the extended detention wetland at
the subject facility prepared on your behalf by Diehl & Phillips, PA and submitted to the Division on September
24, 2003. Staff from the Wetlands Unit reviewed the plans and found them acceptable. Please note that this
approval is for water quality purposes only and shall not be construed as an approval of the design for
dam/outlet structure integrity, Dam Safety, public safety, or flood attenuation purposes.
If you have any questions regarding this matter, please contact Mr. Todd St. John at [phone].
cc: Raleigh Regional Office
Alan R. Keith, PE, Deihl and Phillips, 219 East Chatham St., Cary, NC 27511
Mike Ortosky, S&EC, 11010 Raven Ridge Road, Raleigh, NC 27614
Todd St. John
File
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetlands/
DIEHL & PHILLIPS, P.A.
CONSULTING ENGINEERS
219 East Chatham Street
Cary, North Carolina 27511
Telephone [phone] • Fax [phone]
Mr. Todd St. John, P.E.
Division of Water Quality
2321 Crabtree Blvd. Suite 250
Raleigh, NC 27604-2260
Re: Extended Detention Wetland Plans and Additional
Information for Galloway Ridge at Fearrington
DWQ Project No. 030018
September 24, 2003
WILLIAM C. DIEHL, P.E.
JOHN F. PHILLIPS, P.E.
ALAN R. KEITH, P.E.
ET1,US/T,Q1 NU:

MATER 0U 1 'A SECTION
Dear Todd:
Enclosed is a set of plans for the grading, storm drainage, erosion control, extended
detention wetland basin, planting plan, and details for the referenced project. These plans
and the following information are provided in response to your earlier letter (copy
attached). Also enclosed is a Wetland Detention Basin Operation and Maintenance
Agreement, a DWQ 401 Extended Detention Wetland Worksheet, and calculations
related to the basin. The following are in response to the specific items in your letter.
The detention basin submitted originally to you has been changed as you directed
to an extended detention wetland following the guidelines of Chapter 2 of the
Stormwater Best Management Practices Manual. Note that the SA/DA ratio for
the tributary drainage area to the proposed facility exceeds the minimum
requirement. The final contours for the basin bottom follow the design criteria.
However, the depth of the detention basin has been limited to 9" to improve plant
wetland plant survivability. We understand that you have discussed this with Soil
& Environmental Consultants and you concur with their request to limit the depth
of the facility. We propose to excavate the basin, use the basin for erosion control
during construction, and fill the basin bottom with topsoil to produce the final
contours at the end of the project. Plantings would be added at the very end.
2. Pipe P-72 and P-74 have been repositioned to minimize short circuiting. A draw
down structure has been added away from the main outlet as you requested. A 3-
inch diameter pipe will control the discharge to draw down the 1-inch storm from
elevation 422.7 to elevation 422.0 (normal pool). Draw down of the 1-inch storm
will be accomplished in slightly over 2 days.
3. The following is a summary of the impervious surfaces on the east side (villa area)
of the project:
Sidewalk and Driveways 0:85 acre
Streets 1.91 acre
Roofs and Patios 2.99 acre
5.75 acres
Mr. Todd St. John, P.E.
Page 2 of 2
September 24, 2003
4. Enclosed is a completed worksheet for the Extended Detention Wetland Basin.
5. Enclosed is an executed Operation and Maintenance Agreement for the Extended
Detention Wetland Basin.
We believe that the above addresses all comments related to the project. We request that
you approve the plans in writing as soon as possible.
We have concerns regarding your requirement for construction of an extended detention
wetland so near an assisted living facility. Galloway Ridge at Fearrington and
Fearrington Village are populated with many elderly persons. Most likely, a large
percentage of the residents will be in declining health. Based on recent press reports,
there is a confirmed presence of mosquito borne illness in Chatham County. We are
concerned that the extended detention wetland basin may be conducive to mosquito
breeding and set up the potential for health problems with the residents. Since your
office has required this facility, we feel that it is imperative that the State address the
potential issue of mosquito borne illness at this facility with your approval.
Sincerely,
Diehl & Phillips, P.A.
? &1-4
Alan R. Keith, P.E.
Enclosures
Cc: R.B. Fitch
Hugh Chapin
Phil Giewont
Gene Waters
Dan Sears
Sean Clark
v A-T?
Michael F .Easley
Govemor
r
William Goss, Jr Secretary
! Department of Environment an dJatural fiesources
Alan W aCJi rak p E RJrectbr
Dmsion Mil 1e dd4fy
May 21, 2003
Mr. -Alan Keith, PE
Diehl and'. hillips, PA
2119fast Chatham Street
Cary, NO 27511
k
Subject: Galloway Ridge
DWQ Project No. 030018
Chatham County
Dear Mr. Keith:
The Wetlands Unit staff reviewed the stormwater management plans for the subject project and determined that additional
information is necessary to complete the technical review process. Specifically your correspondence dated April 28, 2003
indicated that the site impervious area i00.2% basedfontre site as described in the application. (However, the
application indicated in Part XI an impervious cover of only 231%.) Additionally, the western side of the project alone is well
in excess of 30%. As such, a stormwater management plan is required. The required additional information is as follows:
1. Converting the Pond to an Extended Detention Wetland
Assuming the permanent pool surface area of the pond is based on an SA/DA (surface area to drainage area ratio)
appropriate fora three foot deep pond, as we discussed, conversion to an extended detention wetland should not
be problematic,because the surface area andsiibsequenfly the pond size would-remain the same. 'Chapter 2 of the
Stormwater Best Management Practices Manual 'April 1999 describes -the design requirements for extended
detention wetland.
2. Inlet/Outlet/Structure Location
The inlet and outlet structures must be placed to minimize short circuiting and turbulence. The current configuration
is subject to short circuiting. This potentially could be solved by extending the temporary pool draw down orifice pipe
to the south side of the pond.
3. Eastside
No stormwater management plan is currently proposed for the eastern side of the project. Please provide a
breakdown of the impervious cover that includes all impervious areas including the roads, homes, sidewalks patios,
etc.
4. Worksheets
Worksheets for stormwater ponds, wetlands, and bioretention areas can be found at
http://h2o.ehnr.state.nc.us/ncwetlands/Mitresto.html.
5. Operation and Maintenance Agreement
An operation and maintenance agreement is required. An example operation and maintenance plan can be found
at http://h2oehnr.state.nc.us/ncwetlands/mitresto.html. The operation and maintenance agreement must also be
signed by the responsible party and notarized.
Also, during our discussion today you indicated that Sean Clark would be contacting John Dorney, Wetlands Unit
Supervisor, to set up a meeting to discuss whether or not the Certification should have included a requirement for a
specific stormwater management plan. I will do my best to make sure Mr. Dorney remains aware of the situation and your
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), http)/h2o.erir.state.ne.us/ncwetlands/
Page 2 of 2
w z
concems add will await-Mr. Clark's request. `Also, subsequent to our discussion, I found a table in a document in Urban
Wateiways?Designii66 Stormwater Wetlands fora mall;Watersheds, NCSf1 Cooperative Extention, that gives_a sample
x??k
break down of,costs for?,planting stormwaterwetlands (attached): Also, please be aware that your,client has 60.days to
appeal the 401 1Nater Quality,Certification from the date of receipt of thelCertification which was issued on Marcf 25,
2003.
If you have-'any questions for would like to discuss this pro}ecf, please contact me at [phone]. Also, please note
that the NC DENR Stormwater Best Management Practices Manual as well as other documents and information can be
downloaded` from the Wetlands Unit web site at http://h2o.ehnr.state.hc.us/ncwetiands/mitresto.htmi.
Since7ly, t
Tod, _St. Jghn,
Environmental. Engineer
cc: Raleigh Regional Office
Mr. Roy B. Fitch, Fitch Creations, 2000_Fearington, Village, Pittsboro, NC 2.7312
Mr. Sean Clark, S&EC, 11010 Raven Ridge Road, Raleigh, NC 27614
John Dorney
File
s'
WETLAND DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT.
The wetland detention basin system is defined as the wetland detention basin, pretreatment including
forebays.
Maintenance activities shall be'performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wetland detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of -any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wetland detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wetland detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
If the elevation of the marsh areas exceed the permanent pool elevation, the sediment should be
removed to design levels. This shall be performed by removing the upper 6 inches of soil and stockpiling
it. Then the marsh area shall be excavated six inches below design elevations. Afterwards the stockpiled
soil should be spread over the marsh surface. The soil should not be stockpiled for more than two weeks.
When the permanent pool depth reads 0.75 feet in the forebay and micro-pool, the sediment shall be
removed.
BASIN DIAGRAM
(fill in the blanks)
Sediment Removal El. 419.
Bottom Elevai on 41 f
Bottom Elevation V
Permanent Pool Elevation 422.0
tb%
-----/ \--Sediment Removal Elevation 419.7=421.775%
o?o/ ----
FOREBAY
•
MAIN POND
25%
Page I of 2
. f ,,
5. Wetland planting densities in the marsh areas should be maintained by replanting bare areas as needed.
Wetland plants should be encouraged to grow in the marsh areas.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wetland detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All
accumulated sediment and debris shall be removed from the structure, and a level elevation shall be
maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or
replanted as necessary.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: GX &W6?L
Title: 5Q IBS UE W:--) *W
Address:32i >0\\?S?m C,1.
K=?7m.
dge
f and
My commission expires
SEAL
(,-.2 r-,5(-
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Page 2 of 2
DIVISION OF WATER QUALITY - 401 EXTENDED DETENTION (and POCKET*) WETLAND WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : Gal 1 nwny Ri r1crt ni- Pp-arri natnn
Contact Person: Alan Keith, P.E. ,Phone Number [phone]
For projects with multiple basins, specify which basin this worksheet applies to: West Side Detention Basi
Permanent Pool Elevation 422.0 ft. (elevation of the orifice invert out)
Temporary Pool Elevation ??-ft. (elevation of the outlet structure invert in)
Permanent Pool Surface Area 26,440 sq. ft. (water surface area at permanent pool elevation)
Drainage Area 28.1 ac. (on-site and off-site drainage to the basin)
Impervious Area 11.47 ac. (on-site and off--site drainage to the basin)
Forebay Surface Area ±3,700 sq. ft. (at permanent pool elevation approximately 15%)*
Marsh 0"-9" Surface Area i 760 sq. ft. (at permanent pool elevation approximately 35%)*
Marsh 9"-18" Surface Area sq. ft. (at permanent pool elevation approximately 35%)*
Micro Pool Surface Area ±-4 , OOC sq. ft. (at permanent pool elevation approximately 15%)*

Temporary Pool Volume ±23,000 cu. ft. (volume detained on top of the permanent pool)
SAIDA used 2.16 (surface area to drainage area ratio)*
Diameter of Orifice 3 in. (draw down orifice diameter)
If. 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
AXIS The temporary pool controls runoff from the 1 inch rain.
Q m-(!c. The basin side slopes are no steeper than 3:1. lL (l3ACJCr113-j al" hA^J Ar
AAct A planting plan for the marsh areas with plant species and densities is provided.
A)Lit Vegetation above the permanent pool elevation is specified.
0 Ad&._An emergency drain is provided to drain the basin.
a Mk The temporary pool draws down in 2 to 5 days.
A4,le- Sediment storage is provided in the permanent pool.
p A.& A sediment disposal area is provided.
44..66 Access is provided for maintenance.
.AA.x site specific, signed and notarized operation and maintenance agreement is provided.
Ag.j c The drainage area (including any offsite area) is delineated on a site plan.
st_ AB. dLe Access is provided for maintenance.
AA.l? Plan details for the wetland are provided.
,a414. Plan details for the inlet and outlet are provided.
SU p42Lh- A site specific operation and maintenance agreement, signed and notarized by the responsible pa rty is provided (see
http://h2o.ehnr.state.nc.us/ncwetlands/0andm.doc).
"Pocket Wetlands have different design parameters and are only assumed to remove 35%TSS - See pp. 19 and 20 of the NC DENR
Stormwater BMP Manual, April 1999.10% open water, 50% high marsh, 40% low marsh.
* Based on conversations with Wetland Unit,all surface is less than 9"
in depth to insure plantings will survive.

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Mr. Alan Keith, PE
Diehl and Phillips, PA
219 East Chatham Street
Cary, NC 27511
Subject:
Dear Mr. Keith:
May 21, 2003
Galloway Ridge
DWQ Project No. 030018
Chatham County
The Wetlands Unit staff reviewed the stormwater management plans for the subject project and determined that additional
information is necessary to complete the technical review process. Specifically your correspondence dated April 28, 2003
indicated that the site impervious area is 30.2% based on the site as described in the application. (However, the
application indicated in Part XI an impervious cover of only 24%.) Additionally, the western side of the project alone is well
in excess of 30%. As such, a stormwater management plan is required. The required additional information is as follows:
1. Converting the Pond to an Extended Detention Wetland
wATfi9
QG
-i
Michael F. Easley
Governor
William G. Ross, Jr., Secretary.
Department of Environment and Natural. Resources
Alan W. Klimek, P.E., Director
W1111111111101 Division of Water Quality
Assuming the permanent pool surface area of the pond is based on an SA/DA (surface area to drainage area ratio)
appropriate for a three foot deep pond, as we discussed, conversion to an extended detention wetland should not
be problematic because the surface area and subsequently the pond size would remain the same. Chapter 2 of the
Stormwater Best Management Practices Manual, April 1999 describes the design requirements for extended
detention wetland.
2. Inlet/Outlet Structure Location
The inlet and outlet structures must be placed to minimize short circuiting and turbulence. The current configuration
is subject to short circuiting. This potentially could be solved by extending the temporary pool draw down orifice pipe
to the south side of the pond.
3. Eastside
No stormwater management plan is currently proposed for the eastern side of the project. Please provide a
breakdown of the impervious cover that includes all impervious areas including the roads, homes, sidewalks patios,
etc.
4. Worksheets
Worksheets for stormwater ponds, wetlands, and bioretention areas can be found at
http://h2o.ehnr.state.nc.us/ncwetlands/mitresto.html.
5. Operation and Maintenance Agreement
An operation and maintenance agreement is required. An example operation and maintenance plan can be found
at http://h2o.ehnr.state.nc.us/ncwetlands/mitresto.htmi. The operation and maintenance agreement must also be
signed by the responsible party and notarized.
Also, during our discussion today you indicated that Sean Clark would be contacting John Dorney, Wetlands Unit
Supervisor, to set up a meeting to discuss whether or not the Certification should have included a requirement for a
specific stormwater management plan. I will do my best to make sure Mr. Dorney remains aware of the situation and your
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetiands/
Page 2,of 2
concerns and will await Mr. Clark's request. Also, subsequent to our discussion, I found a table in a document in Urban
Waterways Designing Stormwater Wetlands for Small Watersheds, NCSU Cooperative Extention, that gives a sample
break down of costs for planting stormwater wetlands (attached). Also, please be aware that your client has 60 days to
appeal the 401 Water Quality Certification from the date of receipt of the Certification which was issued on March 25,
2003.
If you have any questions or would like to discuss this project, please contact meat [phone]. Also, please note
that the NC DENR Stormwater Best Management Practices Manual as well as other documents and information can be
downloaded from the Wetlands Unit web site at http://h2o.ehnr.state.nc.us/ncwetlands/mitresto.html.
Since?ely,
I• ;
TodY St. John,
Environmental Engineer
cc: Raleigh Regional Office
Mr. Roy B. Fitch, Fitch Creations, 2000 Fearington Village, Pittsboro, NC 27312
Mr. Sean Clark, S&EC, 11010 Raven Ridge Road, Raleigh, NC 27614
John Dorney
File

` Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com
May 23, 2003
S&EC, Inc. Project # 01-6339
DWQ Project # 03-0018
Department of Environment and Natural Resources
Division of Water Quality
Attn: John Dorney 'd?
2321 Crabtree Boulevard 1ODS1401
Suite 250 GROUP
Raleigh, NC 27604 Ay 2 3 2003
Re: Reply to the Division of Water Quality's March 25, 2003 401-pe* i' ter
detention fro the proposed Galloway Ridge, Chatham County, North Carolina ??jPON
Dear Mr. Dorney:
This letter is regarding the 401 permit issued on March 25, 2003 for the proposed Galloway
Ridge Project. Condition 2 requires that a stormwater management plan be approved by your
office prior to construction within the wetland areas. We believe that this was erroneously
placed on the permit because the impervious surface area provided on the PCN form was less
than 30%.
Mr. Alan Keith of Diehl and Phillips, P.A. has responded back to your office in a letter on,April
25, 2003 and has spoken with Mr. Todd St. John in your office to try to resolve this issue. We
believe that an office meeting with you, Mr. St. John, Mr. Keith, and I should be held in order to
come to an agreement on this matter. Please contact me so that we can schedule a meeting.
Because we have responded on several occasions within the 60 days after the date of the issued
401 we do not believe that the conditions of the permit are final and do not give up the option for
an adjudicatory hearing. If I do not hear from you on the contrary, I will assume that this is
acceptable.
If I can be of any further assistance or if you have any questions, please call me or email me at
[e-mail].
Sincerely,
2-
Sean Clark
Attachments: 1) 401 permit dated March 25, 2003
Charlotte Office: Greensboro Office: Hickory Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive 622 Coon Mountain Lane
Concord, NC 28025 Greensboro, NC 27455 Taylorsville, NC 28681
Phone: [phone] Phone: [phone] Phone [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
,I,. 't 40
\NA TF Michael F. Easley, Governor
Q R William G. Ross Jr., Secretary
?? QG North Carolina Department of Environment and Natural Resources
7 Alan W. Klimek, P.E. Director
j Division of Water Quality
f3
March 25, 2003
DWQ# 03-0018
Chatham County
Mr. Roy B. Fitch, Jr.
Fitch Creations, Inc.
2000 Fearrington Village
Pittsboro, NC, 27312
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Mr. Fitch:
You have our approval, in accordance with the attached conditions, to place permanent fill in 0.13 acre of wetlands and
125 linear feet of intermittent streams in order to construct a road crossing at Galloway Ridge in Chatham County, as
described in your application received by the Division of Water Quality on January 9, 2003, and in additional
correspondence received February 11, 2003. After reviewing your application, we have determined that this fill is covered
by General Water Quality Certification Number 3375, which can be viewed on our web site at
http:Hh2o.enr.state.nc.us/ncwetlands. This. Certification allows you to use Nationwide Permit Number 14 when it is issued
by the U.S. Army Corps of Engineers. In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Sediment and Erosion Control, Non-Discharge and Water Supply
Watershed regulations. Also this approval will expire when the accompanying 404 permit expires unless otherwise
specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application. If you change your
project, you must notify us in writing and you may be required to send us a new application for a new certification. If the
property is sold, the new owner must be given a copy of the Certification and approval letter and is thereby responsible for
complying with all conditions. If total wetland and/or stream fills for this project (now or in the future) including future phases
of this subdivision exceed one acre or 150 linear feet of perennial streams, compensatory mitigation may be required as
described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the conditions listed in the attached
certification, as well as the additional conditions listed below:
1. Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective
buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in
place prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and
Authorization Certificate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at .
hftp://h2o.enr.state.nc.us/ncwetiands*,
2. The following condition shall apply unless it is demonstrated in writing to the satisfaction of this Office that the
impervious area of the entire, built-out project (including the cluster development) shall be less than 30% and that there
are no areas of concentrated impervious area over 30% within the project such as, but not limited to, commercial areas,
multi-family, clubhouses, maintenance areas, etc.
An additional condition is that a final, written stormwater management plan shall be approved in writing by this Office
before the impacts specified in this Certification occur per Condition No. 4 in GC No. 3375. The stormwater
management plan must include plans and specifications for stormwater management facilities that are appropriate for
surface waters classified as WS IV and designed to remove 85% TSS according to the most recent version of the NC
DENR Stormwater Best Management Practices Manual. These facilities must be designed to treat the runoff from the
entire project, unless otherwise explicitly approved by the Division of Water Quality. Also, before any permanent building
is occupied at the subject site, the facilities (as approved by this Office) shall be constructed and operational, and the
stormwater management plan (as approved by this Office) shall be implemented. The structural stormwater practices as
approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the structural
stormwater practices shall be made without written authorization from the Division of Water Quality.
A State Stormwater Permit (15 A NCAC 2H .1000) can be considered to meet this condition
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone]
f(
Customer Service
1 800 623-7748
40 or -':N
3. You are required to return the attached Certification of Completion form to notify DWQ when all work included in the 401
Certification has been completed.
If you do not accept any of the conditions of this certification, 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, Mail Service Center 6714, --
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone Steve Mitchell in DWQ's Raleigh Regional Office at 919-571-4700 or Cyndi Karoly in the
Central Office in Raleigh 919-733-9721.
Sincerely,
r
Klimek, . .
AW K/cbk
Attachments
cc: Corps of Engineers Raleigh Regulatory Field Office
Raleigh DWQ Regional Office
Central Files
File Copy
Sean Clark, 1,1010 Raven Ridge Road, Raleigh, NC, 27614
030018
O?O? wAT X19 Michael F. Easley
Governor
tP William G. Ross, Jr., Secretary
>_ _I Department of Environment and Natural. Resources
O Alan W. Klimek, P.E., Director
Division of Water Quality
May 21, 2003
Mr. Alan Keith, PE
Diehl and Phillips, PA
219 East Chatham Street
Cary, NC 27511
Subject: Galloway Ridge
DWQ Project No. 030018
Chatham County
Dear Mr. Keith:
The Wetlands Unit staff reviewed the stormwater management plans for the subject project and determined that additional
information is necessary to complete the technical review process. Specifically your correspondence dated April 28, 2003
indicated that the site impervious area is 30.2% based on the site as described in the application. (However, the
application indicated in Part XI an impervious cover, of only 24%.) Additionally, the western side of the project alone is well
in excess of 30%. As such, a stormwater management plan is required. The required additional information is as follows:
Converting the Pond to an Extended Detention Wetland
Assuming the permanent pool surface area of the pond is based on an SA/DA (surface area to drainage area ratio)
appropriate for a three foot deep pond, as we discussed, conversion to an extended detention wetland should not
be problematic because the surface area and subsequently the pond size would remain the same. Chapter 2 of the
Stormwater Best Management Practices Manual, April 1999 describes the design requirements for extended
detention wetland.
2. Inlet/Outlet Structure Location
The inlet and outlet structures must be placed to minimize short circuiting and turbulence. The current configuration
is subject to short circuiting. This potentially could be solved by extending the temporary pool draw down orifice pipe
to the south side of the pond.
3. Eastside
No stormwater management plan is currently proposed for the eastern side of the project. Please provide a
breakdown of the impervious cover that includes all impervious areas including the roads, homes, sidewalks patios,
etc.
4. Worksheets
Worksheets for stormwater ponds, wetlands, and bioretention areas can be found at
hftp://h2o.ehnr.state.ne.us/ncwetiands/mitresto.htmi.
5. Operation and Maintenance Agreement
An operation and maintenance agreement is required. An example operation and maintenance plan can be found
at hftp://h2o.ehnr.state.nc.us/ncwetlands/mitresto.html. The operation and maintenance agreement must also be
signed by the responsible party and notarized.
Also, during our discussion today you indicated that Sean Clark would be contacting John Dorney, Wetlands Unit
Supervisor, to set up a meeting to discuss whether or not the Certification should have included a requirement for a
specific stormwater management plan. I will do my best to make sure Mr. Dorney remains aware of the situation and your
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.ehr.st6te.nc.us/ncwetlands/
Page 2 of 2
concerns and will await Mr. Clark's request. Also, subsequent to our discussion, I found a table in a document in Urban
Waterways Designing Stormwater Wetlands for Small Watersheds, NCSU Cooperative Extention, that gives a sample
break down of costs for planting stormwater wetlands (attached). Also, please be aware that your client has 60 days to
appeal the 401 Water Quality Certification from the date of receipt of the Certification which was issued on March 25,
2003.
If you have any questions or would like to discuss this project, please contact me at [phone]. Also, please note
that the NC DENR Stormwater Best Management Practices Manual as well as other documents and information can be
downloaded from the Wetlands Unit web site at http://h2o.ehnr.state.nc.us/ncwetlands/mitresto.htmi.
Since?ely,
f
Todar9 St. John,
Environmental Engineer
cc: Raleigh Regional Office
Mr. Roy B. Fitch, Fitch Creations, 2000 Fearington Village, Pittsboro, NC 27312
Mr. Sean Clark, S&EC, 11010 Raven Ridge Road, Raleigh, NC 27614
John Dorney
File
Table 7. Sample land and construction costs of a stormwater wetland (taken from North Carolina case studies)
NOTE: The table is based on a 1-acre wetland treating a 50-acre watershed.
Cost type Description Unit cost Total cost Cost per acre of
watershed treated
Land Land values may vary from $40,000/ac $40,000 $800
$10,000 - $400,000 per acre
in N.C. Assume $40,000
at this site.
Excavation A total of 4,800 cubic yards $8/cy $38,400 $770
and grading (1 acre X 1 yard depth).
Hauling Area adjacent to site used to Part of Included in Included in
spread excess earth-costs above costs Excavation and Excavation and
included in Excavation costs. grading costs grading costs
Vegetation Some local transplants, some $0.30/sf $13,000 $260
natural establishment,
and a few ornamental plants
from local nursery.
Spillway and Treated lumber used $0.25/sf $11,000 $220
drawdown for aesthetic purposes.
Drawdown holes drilled
through principal spillway.
TOTAL LAND AND CONSTRUCTION COSTS $102,400 $2,050
The primary construction cost is for earthwork, includ-
ing excavation, grading, and hauling. Excavation and
grading costs for wetlands constructed in the piedmont
and coastal plain of North Carolina have ranged from $4
to $9 per cubic yard, with a tendency toward economies
of scale. Hauling costs dramatically increase with the
distance the excavated soil needs to be carried. If the soil
can be disposed of on site, tremendous savings can be
made.
Costs associated with vegetation are highly variable. It
is possible to transplant some vegetation from nearby
road ditches and allow much of the wetland's vegetation
to naturally establish, which reduces costs considerably.
However, wetlands are often required to meet aesthetic
standards. So, special care must be taken when selecting
plants. If plants are purchased from wetland nurseries,
costs will undoubtedly increase, but the wetland will
more likely serve an aesthetic purpose. Another factor to
consider in wetland vegetation is desired spacing. If a
fully established ecosystem is desired within one year,
plants must be placed close together. More plants mean
more money. Finally, if a nursery is used, the species of
wetland vegetation can greatly affect costs. Costs have
ranged from as low as $0.30 per square foot where plants
came from selective harvesting and natural establishment
to $1 per square foot where nursery vegetation was used.
The costs of the principal outlet and drawdown device
depend on the size of the watershed, and, consequently,
the size of the wetland. More water means a bigger dam.
In North Carolina, the cost of outlet and drawdown
construction has ranged from $0.25 to $1 per square foot
of wetland area.
Maintenance costs vary by watershed type. A water-
shed that is under development will result in higher
amounts of sediment reaching the wetland, thus increas-
ing the frequency of maintenance. Watersheds with more
human activity can result in more litter and debris.
Occasional inspection of the dam, principal spillway,
and drawdown device is also necessary. Table 7 shows a
summary of costs for a sample wetland.
Summary
Stormwater wetlands are becoming a standard best
management practice in treating stormwater runoff from
urban areas. When designed and installed properly,
stormwater wetlands are effective at removing pollut-
ants, providing habitat, and serving as educational and
recreational amenities. They can also be safe and some-
what unobtrusive if carefully designed. If you have any
questions on stormwater wetlands, please contact your
local Cooperative Extension staff, an N.C. DENR Divi-
sion of Water Quality regional office, or your local soil
and water district.
12
Michael F. Easley
Governor
VVV (? William G. Ross, Jr., Secretary
t LG1L - ivironment and Natural Resources
Alan W. Klimek, P.E., Director
- Division of Water Quality
4j n
u/
?L- ,?/,? / is objecting to our
on indicated that
ion of the project.
2) 100? detail for the stormwater
4)j-- impervious coverage
iot be an issue.
5)? ind that we (apparently
6
+rvious cover.
. site appeared to have
7) vv seeded 30% or if there
8) in 30% impervious
total project
i - nal discussion with
t and to meet our
s based on our Manual
b Dr. He objected to
h. _ that extended the
re ie plans further
be
Ai _ er's letter and the
file pus cover) based on
the liscuss and he said
the re PUD was less
tha - - ey included as part
oft - - -- act limitations were
set icts supported the
nee I would let you
dec. ous cover is
grey
ale,
North Carolina Division of Water Quality, 401 Wetlands Certificat n Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetiands/

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DIEHL & PHILLIPS, P.A.
CONSULTING ENGINEERS WILLIAM C. DIEHL, P.E.
219 East Chatham Street JOHN F. PHILLIPS, P.E.
Cary, North Carolina 27511 ALAN R. KEITH, P.E.
Telephone [phone] Fax [phone]
April 28, 2003
Todd St. John APR 2 9 2003
Division of Water Quality
2321 Crabtree Boulevard n
Suite 250 t+t f ?ON
Raleigh, NC 27604
Re: 401 Water Quality Certification Additional Conditions
Galloway Ridge at Fearrington
Chatham County DWQ # 03-0018
Dear Mr. St. John:
This is a response to the approval letter from the Division of Water Quality (DWQ) for
the referenced project dated March 25, 2003 (copy attached). The approval carried
additional conditions regarding the amount of impervious surface in the project and a
stormwater management plan. Enclosed for your review is a copy of plan sheet SD5,
SD6, and SD1 l for Galloway Ridge. These plans show the storm drainage system for the
proposed project. Also enclosed is an overall map that illustrates Galloway Ridge in the
Fearrington Planned Unit Development (P.U.D.).
The Galloway Ridge project has two distinct parts. The eastern portion of the project
consists of villa homes. The storm sewers from the villa homes discharge into a drainage
feature that contains wetlands and a large amount of area that is to remain undisturbed.
Total post development onsite drainage area is approximately 26 acres for the eastern
side. Approximately 5.75 acres of impervious surface (buildout value including roads,
drives, and roof tops) is proposed with the east side villa homes. Therefore the eastern
side impervious percentage is 22.1%. This value is well below the 30% impervious limit
included as a part of the approval conditions. It is for this reason that storm water
management facilities are not proposed on the eastern side of Galloway Ridge.
The western part of Galloway Ridge consists of independent living apartments, a
commons area with food service, an assisted living facility, and a wellness center.
3 0, 2 ?fiI
Parking lots, access roads, and walkways are provided. The vast majority of storm water
leaving the Galloway Ridge site on the western side is piped to a large wet detention
pond. The pond is designed primarily to reduce peak runoff quantities for post
development conditions. Provisions have been made to store the runoff from a 1" storm
in the wet detention pond.
In:
Mr. Todd St. John
Page 2 of 2
April 28, 2003
The total proposed impervious surface for the western part of Galloway Ridge is 11.47
acres (buildout value). The total area for the western part of Galloway Ridge is
approximately 31 acres. Therefore, the west side impervious percentage is 37.0%. The
western side development is tributary to a wet detention pond with a minimum depth of 3
feet. The provision of the wet detention pond is consistent with DWQ requirements.
The State best management practices for wet detention ponds indicate that a 3-foot deep
pond designed for 85% TSS removal, treating an area 37% impervious, would require a
surface area to drainage area ratio of 1.61 %. The area of the western side is 31 acres.
Therefore a pond surface area of 21,740 square feet is required. The pond surface
proposed is approximately 28,800 square feet which is well in excess of the requirement.
Further, the pond is shaped so that flow from the major influent lines must flow
approximately one half of the pond length before discharge (in keeping with 3.1
length/width ratio).
Galloway Ridge and Fearrington P.U.D. are somewhat unique. The Fearrington P.U.D.
has been developed over a number of years with a large amount of land set aside as open
space. Fearrington P.U.D. has much less than 30% impervious as a whole. There are
approximately 10 acres of land dedicated as open space upstream of Galloway Ridge that
is tributary to the drainage features that discharge from Galloway Ridge. An evaluation
of the Galloway Ridge project should consider this fact. Further, the total Galloway
Ridge project has a 30% overall impervious cover.
It is our belief that the facilities proposed for Galloway Ridge meet condition number 2
of the Approval of 401 Water Quality Certification included in the DWQ letter of March
25, 2003. We request that you approve the project as designed and that you provide
approval in writing. We are available to discuss the project if you care to do so.
Sincerely,
Diehl & Phillips, P.A.

Alan R. Keith, P.E.
enclosures
Cc: R.B. Fitch
John Phillips
Dan Sears
Eugene Waters
Phil Giewont
OF W A. T Michael F. Easley, Governor
Q
G William G. Ross Jr., Secretary
North Carolina De
artment of Environment and N
t
l R
`O p
a
ura
esources
Alan W. Klimek, P.E. Director
>_ -=1 Division of Water Quality

March 25, 2003
DWQ# 03-0018
Chatham County
Mr. Roy B. Fitch, Jr.
Fitch Creations, Inc.
2000 Fearrington Village
Pittsboro, NC, 27312
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Mr. Fitch:
You have our approval, in accordance with the attached conditions, to place permanent fill in 0.13 acre of wetlands and
125 linear feet of intermittent streams in order to construct a road crossing at Galloway Ridge in Chatham County, as
described in your application received by the Division of Water Quality on January 9, 2003, and in additional
correspondence received February 11, 2003. After reviewing your application, we have determined that this fill is covered
by General Water Quality Certification Number 3375, which can be viewed on our web site at
http://h2o.enr.state.nc.us/ncwetlands. This Certification allows you to use Nationwide Permit Number 14 when it is issued
by the U.S. Army Corps of Engineers. In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Sediment and Erosion Control, Non-Discharge and Water Supply
Watershed regulations. Also this approval will expire when the accompanying 404 permit expires unless otherwise
specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application. If you change your
project, you must notify us in writing and you may be required to send us a new application for a new certification. If the
property is sold; the new owner must be given a copy of the Certification and approval letter and is thereby responsible for
complying with all conditions. If total wetland and/or stream fills for this project (now or in the future) including future phases
of this subdivision exceed one acre or 150 linear feet of perennial streams, compensatory mitigation may be required as
described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the conditions listed in the attached
certification, as well as the additional conditions listed below:
1. Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective
buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in
place prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and
Authorization Certificate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at
hftp://h2o.enr.state.nc.us/ncwetiands:
2. The following condition shall apply unless it is demonstrated in writing to the satisfaction of this Office that the
impervious area of the entire, built-out project (including the cluster development) shall be less than 30% and that there
are no areas of concentrated impervious area over 30% within the project such as, but not limited to, commercial areas,
multi-family, clubhouses, maintenance areas, etc.
An additional condition is that a final, written stormwater management plan shall be approved in writing by this Office
before the impacts specified in this Certification occur per Condition No. 4 in GC No. 3375. The stormwater
management plan must include plans and specifications for stormwater management facilities that are appropriate for
surface waters classified as WS IV and designed to remove 85% TSS according to the most recent version of the NC
DENR Stormwater Best Management Practices Manual. These facilities must be designed to treat the runoff from the
entire project, unless otherwise explicitly approved by the Division of Water Quality. Also, before any permanent building
is occupied at the subject site, the facilities (as approved by this Office) shall be constructed and operational, and the
stormwater management plan (as approved by this Office) shall be implemented. The structural stormwater practices as
approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the structural
stormwater practices shall be made without written authorization from the Division of Water Quality.
A State Stormwater Permit (15 A NCAC 2H .1000) can be considered to meet this condition.
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service
1 800 623-7748
3. You are required to return the attached Certification of Completion form to notify DWQ when all work included in the 401
Certification has been completed.
If you do not accept any of the conditions of this certification, 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, Mail Service Center 6714,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone Steve Mitchell in DWQ's Raleigh Regional Office at 919-571-4700 or Cyndi Karoly in the
Central Office in Raleigh 919-733-9721.
Sincerely,
Klimek,
AW K/cbk
Attachments
cc: Corps of Engineers Raleigh Regulatory Field Office
Raleigh DWQ Regional Office
Central Files
File Copy
Sean Clark, 11010 Raven Ridge Road, Raleigh, NC, 27614
030018
APR-28-2003 MON 01:56 PM FAX NO, P. 01
04/28/2003 14:45 919--467-5327 DIEHL & PHILLIPS PACE 01
ID) & PHMI"S. P.A.
CoNsul No BNoMS WILUAM C. DIR14, r.&
219 PAN Chdk m Sked JOAN F. PHaLUM P.B.
Cary, Nab Carolina 27511 Mari R. KoM P.L
lhkphaue o" 467--9972 • Fax [phone]
Fax Transmittal
To: ?d ?D U 0 From: A 4-.4,J
/ i
R®: p IA/Q. O ?1 e Date: 9/ ?3
Fax No: 7 3 9-S-V No pgs bickWing Ns sheet:
O Urgent For Review j( Please Cwnm mt original to Folow via Mail
?[ri?ents
G
XFke Tmmmissian Mods
APR-28-2003 MON 01:56 PM FAX NO. P. 02
04/29/2003 14:45 919--467-5327 DIE Ft. & PHILLIPS PAGE 02
DIEHL & PHILLIPS, P.A.
CONSULTING P.NaINEEM
219 Past Chatham Street
Cary, North Carolina 27511
'llelephoue [phone] • Pax [phone]
April 28, 2003
Todd St. John
Division of Water Quality
2321 Crabtree Boulevard
Suite 250
Raleigh, NC 27604
Re: 401 Water Quality Certification Additional Conditions
Galloway Ridge at Fearrington
Chatham County DWQ 0 03-0018
Dear Mr. St. John:
Wluanrrt C. Drem,, P.e.
1014N F. PHILLIPS, PA
ALAN R. KBnu, P.E.
This is a response to the approval letter from the Division of Water Quality (DWQ) for
the referenced project dated March 25, 2003 (copy attached). The approval carried
additional conditions regarding the amount of impervious surface in the project and a
storrnwater management plan. Enclosed for your review is a copy of plan sheet SD5,
SD6, and SDI l for Galloway Ridge. These plans show the storm drainage system for the
proposed project. Also enclosed is an overall map that illustrates Galloway Ridge in the
Fearrington Planned Unit Development (P.U.D.).
The Galloway Ridge project has two distinct parts. The eastern portion of the project
consists of villa homes. The storm sewers from the villa homes discharge into a drainage
feature that contains wetlands and a large amount of area that is to remain undisturbed.
Total post development onsite drainage area is approximately 26 acres for the eastern
side. Approximately 5.75 acres of impervious surface (buildout value including roads,
drives, and roof tops) is proposed with the east side villa homes. Therefore the eastern
side impervious percentage is 22.1 %. This value is well below the 30% impervious limit
included as a part of the approval conditions. It is for this reason that storm water
management facilities are not proposed on the eastern sidc of Galloway Ridge.
The western part of Galloway Ridge consists of independent living apartments, a
commons area with food service, an assisted living facility, and a wellness center.
Parking lots, access roads, and walkways are provided. The vast majority of storm water
leaving the Galloway Ridge site on the western side is piped to a large wet detention
pond. '['he pond is designed primarily to reduce peak runoff quantities for post
development conditions. Provisions have been made to store the runoff from a 1" storm
in the wet detention pond.
APR-28-2003 MON 0156 PM FAX NO. P. 03
04/26/2003 14:45 919-467-5327 DIE_HL. & PHILLIPS PAGE: 03
e
c ..
Mr. 'Todd St. John
Page 2 of 2
April 28, 2003
The total proposed impervious surface for the western part of Galloway Ridge is 11.47
acres (buildout value). The total area for the western part of Galloway Ridge is
approximately 31 acres. Therefore, the west side impervious percentage is 37.00K. The
western side development is tributary to a wet detention pond with a minimum depth of 3
feet. The provision of the wet detention pond is consistent with DWQ requirements.
The State best management practices for wet detention ponds indicate that a 3-foot deep
pond designed for 85% TSS removal, treating an area 37% impervious, would require a
surface area to drainage area ratio of 1.61%. The area of the western side is 31 acres.
Therefore a pond surface area of 21,740 square feet is required. The pond surface
proposed is approximately 28,800 square feet which is well in excess of the requirement.
Further, the pond is shaped so that flow from the major influent lines must flow
approximately one half of the pond length before discharge (in keeping with 3.1
length/width ratio).
Galloway Ridge and Fearrington P.U.D. are somewhat unique. The Fearrington P.U.D.
has been developed over a number of years with a large amount of land set aside as open
space. Fearrington P.U.D. has much less than 30% impervious as a whole. There are
approximately 10 acres of land dedicated as open space upstream of Galloway Ridge that
is tributary to the drainage features that discharge from Galloway Ridge. An evaluation
of the Galloway Ridge project should consider this fact. Further, the total Galloway
Ridge project has a 30% overall impervious cover.
It is.our belief that the facilities proposed for Galloway Ridge meet condition number 2
of the Approval of 401 Water Quality Certification included in the DWQ letter of March
25, 2003. We request that you approve the project as designed and that you provide
approval in writing. We are available to discuss the project if you care to do so.
Sincerely,
Diehl & Phillips, P.A.

Alan R. Keith, P.E.
enclosures
Cc: R.B. Fitch
John Phillips
Dan Sears
Eugene Waters
Phil Giewent
04/28/2003 15:05 919-467-5327 DIEHL & PHILLIPS PAGE 01
DIEHL & PHILLIPS, P.A.
CONSULMG EM24EM WjujA t C. Dim, P&
219 East Cltatta Suw JOHN F. Pmu^ Pm
Cary, North Carolina 27511
At,nrt R. KITH, RE.
Telephone [phone] • Fax [phone]
Fax Transmittal
To: 2204 -rT 7014-) From: A tAj k 17"N
Re: /? (.?Q 0,3-- 0018 Date:
Fax No: 17 7 1 692? No pgs including this sheet:
O Urgent )d For Review Please Comment g Original to Follow via Mail
Comments:
-TN IS 12-4,6,4 Q.o,I 401 APMW0 ?
) ' Fine Transmission Mode
04/28`2003 15:05 919-467-5327 DIEHL & PHILLIPS PAGE 04
A Owsl F. Easley, Governor
A I ?
4 will n? Q. Road Jr., 3e0*W
Q North Carolina Deparirnentof Envf rorvnent and Natural Resources
A
Fit i
AtanW. iatmsk P.E. Director
l
Q
r3KMon of Water
ua
ity

March 25, 2003
DWQ# 03-0018
' l MAP 2 4 Chatham County
Mr. Roy S. Fitch, Jr. i
Fitch Creations, Inc.
2000 Fearrington Village
Pfttsboro, NC, 27312
APPROVAL, of 401 Water Quality Certification with Additional Co'ndlit"s
Dear Mr. Fitch:
You have our approval, in accordance with the attached conditions, to piece permanert fill in 0.13 acre of wetlands and
128 linear feet of Intermittent streams In order to construct a road crossing at.Galloway Ridge in Chatham County, as
described in your application received by the Division of Water Quality on January 9. 2003, and In additional
corresporrdence received February 11, 2003. After reviewing your appiication, we have determined that this fill is covered
by General Water Quality Certifcation Number 3375, which can be viewed on our web site at
t wan onr_artnte.nC,ua/rlQifiNIa ds, This Certification allows you to use Nationwide Permit Number 14 when it Is issued
11 by the U.S. Army Corp of Engineers. In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Sediment and Erosion Control. NonDischaw and Water Supply
watershed regulstions. Also this approval will expire when the accompanying permit 404 specified in the General Certification.
This approval Is only valid for the purpose and design that you described In your application. If you change your
protect, you must notify ue in wr4dng aril you may be required to send us a new application for a now certifioation. h the
property !$ sold. tf to new owner must be given a copy eyf the Certification and approval letter and Is thereby responsible for
camplyfng with au ooriditiona. if torsi wetland and/or s3tre8rri fills for this project (now or in the future) including future phases
of this etlbdiv?ilort exd one acre or i50 linear feet of perennial streams, compensatory mitigation may be required as
described in 16A IVCAC aH .g506 (fi). f=or this approval to lye valid, you must follow the conditions listed in the attached
oertificatlon, as well to rite additional conditions fisted b$iow:
1. Deed notifications or similar mechanisms shall be placed on all retained Jurisdictional wetlands, ter and li ? ties
buffers in order to assure compliance for future wetland, water and buffer Impact. These put
place prior to impacting any wetlands, waters andlor butters approved for Impact under this Certlfloation Approval and
Authorization Certificate. A sample deed notification can be downloaded from the 401 /Wetlands Unit web site at
htm•?i??o enr stateJ.'ic.usLl??ds:
2. The following condition shall apply unless it is demonstrated in writing to the satisfaction of this Office that the
Impervious area of the entire, bunk-out project (including the cluster development) shaft be less than 30% and that there
are no areas of concentrated Impervious area over 30% within the project such as, but not limited to, commercial areas,
multi-family, clubhouses, maintenance areas, etc.
An additional condition Is that a final, written storrnwater management plan shall be approved in writing by this Office
before the Impacts specified in this Certification occur per Corsdit?on No. 4 in GC Na. 3375. The stormwafer
m8nayernent plan must frtcluda plans and specifications for stormwater management facilities that are appropriate for
surfsoo waters classified as WS IV and designed to remove 85% TSS according to the most
resent version at the NC
DENR Stormwater Best Management Practices Manual. These faclI ties must be desipiod to ecet the runoff from the IrO
entire projeot, unless otherwise expficiz<y approved by the Division of Water Qtfaliti')l. Also, before any permanent buii
Is occupied at the subject site, the facilities (as approved by this Office) shall be oonAlso b and operational, and the
approved b t r1t plan (as aPi)roved by this Office) shall be implemented. The structural stormwatsar practical as
approved yhis Office as well as drainage patterns must be maintained In perpetuity. No changes to the structural
stormwatsr practices eftall be made without written authorization from the Division of Water Quality.
A State Stormwater Permit (15 A NCAC 2H .1000) can be considered to meet this condition.
N. C• Olvia(on of Wailes Quality 1017 Mel 4ervbe Censor Ralagh. NO 27690.1017 ;91 733-Ms
CusiDlner urk@
1800 82&7748
0412812003 15:05 919-467-5327 DIEHL & PHILLIPS PAGE 05
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APR-28-2003 MON 01:59 PM FAX NO. P. 02/06
0412BY 2003 14:45 919~467-5327 DIEHL & PHILLIPS PACE 02
DIHL & PHILLIPS, F.A.
CONSULIM ENGINEERS
219 East Chatham street
Cary. North Carolina 27511
Telephone [phone] • Fax [phone]
April 28, 2003
Todd St. John
Division of Water Quality
2321 Crabtree Boulevard
Suite 250
Raleigh, NC 27604
Re: 401 Water Quality Certification Additional Conditions
Galloway Ridge at Fearrington
Chatham County DWQ # 03-0018
Dear Mr. St. John:
WluiAm C. Diu%, P.&
JOHN C. r"ll'uPs, P.P.
MAN R. Ka-rH, P.L.
This is a response to the approval letter from the Division of Water Quality (DWQ) for
the referenced project dated March 25, 2003 (copy attached). The approval carried
additional conditions regarding the amount of impervious surface in the project and a
stormwater management plan. Enclosed for your review is a copy of plan sheet SD5,
SD6, and SDI 1 for Galloway Ridge. These plans show the storm drainage system for the
proposed project. Also enclosed is an overall map that illustrates Galloway Ridge in the
l'earrington !Tanned Unit Development (p.U.D.).
The Galloway Ridge project has two distinct parts. The eastern portion of the project
consists of villa homes. The storm sewers from the villa homes discharge into a drainage
feature that contains wetlands and a large amount of area that is to remain undisturbed.
Total post development onsite drainage area is approximately 26 acres for the eastern
side. Approximately 5.75 acres of impervious surface (buildout value including roads,
drives, and roof tops) is proposed with the east side villa homes. Therefore the eastern
side impervious percentage is 22.1%. This value is well below the 300/9 impervious limit
included as a part of the approval conditions. It is for this reason that storm water
management facilities are not proposed on the eastern side of Galloway Ridge.
The western part of Galloway Ridge consists of independent living apartments, a
commons area with food service, an assisted living facility, and a wellness center.
Parking lots, access roads, and walkways are provided. The vast majority of storm water
leaving the Galloway Ridge site on the western side is piped to a large wet detention
pond. The pond is designed primarily to reduce peak runoff quantities for post
development conditions. Provisions have been made to store the runoff from a 1" storm
in the wet detention pond.
APR-28-2003 MON 01:59 PM FAX NO. P. 03/06
04/28/2003 14:45 919-457-5327 DIEFL & PHILLIPS PAGE 03
Mr. Todd 5t. John
Page 2of2
April 28, 2003
The total proposed impervious surface for the western part of Galloway Ridge is 11.47
acres (buildout value). The total area for the western part of Galloway Ridge is
approximately 31 acres. Therefore, the west side impervious percentage is 37.0%. The
western side development is tributary to a wet detention pond with a minimum depth of 3
feet. The provision of the wet detention pond is consistent with DWQ requirements.
The State best management practices for wet detention ponds indicate that a 3-foot deep
pond designed for 85% TSS removal, treating an area 37% impervious, would require a
surface area to drainage area ratio of 1.61%. The area ofthe western side is 31 acres.
Therefore a pond surface area of 21,740 square feet is required. The pond surface
proposed is approximately 28,800 square feet which is well in excess of the requirement.
Further, the pond is shaped so that flow from the major influent lines must flow
approximately one half of the pond length before discharge (in keeping with 3.1
length/width ratio).
Galloway Ridge and Fearrington P.U.D. are somewhat unique. The Fearrington P.U.D.
has been developed over a number of years with a large amount of land set aside as open
space. Fearrington P.U.D. has much less than 30°/. impervious as a whole. There are
approximately 10 acres of land dedicated as open space upstream of Galloway Ridge that
is tributary to the drainage features that discharge from Galloway Ridge. An evaluation
of the Galloway Ridge project should consider this fact. Further, the total Galloway
Ridge project has a 30% overall impervious cover.
It is our belief that the facilities proposed for Galloway Ridge meet condition number 2
of the Approval of 401 Water Quality Certification included in the DWQ letter of March
25, 2003. We request that you approve the project as designed and that you provide
approval in writing. We are available to discuss the project if you care to do so.
Sincerely,
Diehl & Phillips, P.A.
Alan R. Keith, P.E.
enclosures
Cc: R.B. Fitch
John Phillips
Dan Sears
Eugene Waters
Phil Giewont
APR-28-2003 MON 01:59 PM FAX NO. P. 04106
04/28/2003J14:45 A919-457-5327
Y
DIEI-L & PHILLIPS PAGE 04
rvEC7" F. Eta". ocvamor
WmWn d. Roe{ Jr., 860Mary
North Cwailna DeparanaM of Envt wftrit and Mimi tamuross
Monw. f010+41 PIE, Dk*Ckx
riM$W of water O VOW
March 25,200
OWOR03.OD1a
MAR 2 q I Chatham County
Mr. Roy 0. F teh, Jr.
Rob Creations, Inc.
2000 Fearrfngton Vfliaga
Pfttsboro, NO, 27312
APPROVAL of 401. Wedsr Giwlllty CartMosdon with AdcMkmd Corsdltime
Dear Mr. FkN
You have our approval, In accordanco with tho attaahed conditions, to piece permanent fig In 0.13 acre of wetlands and
126 linear feat of intenriktsM fibmams, in order to construm a road crossing at.Gallaway Rkipe In Chatham County, as
described in your application raceived by the Motion of Warr Quality on January 9, 2003, and In additional
oorrespondence received February 11, 2063. After reviewing your application, we have determined that this fill is covered
by General Wow Quality Cw"lce*m Number 3375, which can be vtawsd on our web she of
jam; f/, 2a.6 ,pc.us/ixweal . This Cartit"tion Wow$ you to. use Nationwide fayrmit Number 14 when it IS issued
by. the V.S. Army Corps of Engineers. In addition, you should gal any of w federal, state or local permits before you go
ahead wfdt your project Including (but not limited to) Seditrwit " Erosion Control, Non-pisohar+ge and Water Supply
Watershed reguIA1110 s. Also this approval wIN expire when ft aocompanying 404 pemNt expires unless otlmmv fte
specified in the Qertersl Csrdtioatlart.
This approval Is only valid for the purpose and design that you described In your application. 0 you ohange your
Project, you must notify us In writing and you may be requinlW to send us a new application for a now oenploatfon.. N the
pl+operty Is sold, the gees owner must be given a copy of the Certpfcation end approval letter end is thereby responsible for
complying with AN ceriditiens. It totat wsUand and/or stream Ste tot this project (crow or In the future) including future phases
of this subdivision MOW one acre or ISO linear feat of perennial streams, compensatory mitigation may be enquired as
described in 1SA NCAC 2H .0506 (h). For this approval to be valid, you must follow the conditions listed In the attached
oertifbatlon, as well. as the additional conditliofls listed below:
1 • Dead notl9cations or almilar mechanisms shall be placed on all retalned jurisdictional wetlands, watem and protective
buffers In order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in
pfaae prior to Impacting any wetlands, waters and/or buffet approved for Impact und+sr thla Certifioation Approval and
Authorization Caddicats. A sample deed m0f lion can be downloaded from the 401/WoUnds Unit web alts at
httc1,(( o.enligt".no. uil ft reth ft-
2. The following condioon shah apply vribss 9 is demonstrated In writing to the satisfaction of Tt?s Office that the
Impervious! area of the entire, built-out project (Including the cluster development) shall be less than WK and that there
are no areas of oweentrated impervious area over 00% within the project such as, but r*1 lirnited to, commercial areas,
mvlil-fwNly, ckthousse, maintenance areas, eta.
An additional condition Is that a final, written stormwater management plan shalt be approved in writing by this Office
before the impacts specified in this Certification occur W Condition No. 4 in QC No. 3375. The stormwater
management platy must Include plans and speofScatione for stormwater management facilities that are appropriate for
$urfacv wotem cltt.9sified at; WS IV and designed to remove 85% TSS According to the most recent version of the NC
DENR Stormwntpr Swat Management Practicc" Manual. These facilties must be designed to treat the runoff from the
entire project, unless otherwise explicitly approved by the Division of Water Ouality. Also, before any permanent building
Is occupied at the subject alto, the facilities (as approved by this Office) shall be oonstruoted and oper+atfional, and the
stormwater msnag6rnsnt plan (as aporovod by this Office) shall be Implemented. The structural slorrnvvatar practices as
approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the structural
stom'twsdar practices shall be made without wrlttan authorization from the Division of Water Qusiity.
A State StWnwater Permit (15 A NCAC 2N A OW) can be Considered to most this condition.
N, C. Division Of watw Ckralty 101 7 dMl terv$ae Center rlaleip, NC 27601$17 [phone] Ctutomer strvka
1 800 02&7748
APR-28-2003 MON 02:00 PM FAX NO. P.105/06
04128/2003 1445 919••-467-5327 DIET-L & PHILLIPS PAGE 05
3; Yott are rvquirod to raturn the affeahed Certifioation of CornpWon form to notify DW0 when all work indL dod in the 401
Corft;Aibn h"- been completed.
if you do rwt *COW any of the conditions of this certlfi<:atlon, you may aek for an AIU*aatory hearing. You must act
Within W days of the date that you receive this letter. To ask for a hearing, send a written petition which conforms to
and binding untessgyou a Moll ok fors hearing. 9714,
Sh, AG, 276W6 of trio 7114y.This oeertif?C ?ation an condtioan9 of
N
This letter completes the review of the Division of Water (satiny under Section 401 of the Clow Water Act. M you have
any questions, please telephone Steve ~911 In DWas Raleigh Regional Office at 919-571,4700 or Cyndi Karoly in the
Central Office In Plalelo 919.733-9721.

AWK10K
Attadt no.rits
cc. Corps of Emineers Rateiflh Reo datm Field 01110e
Roioigh DWO Rood OR"
Central Fits
t=ie Copy
Sean Clark. 11010 Raven Ridge Roed, Raleigh. NO, 27614
Owls
APR-28-2003 MON 02:00 PM FAX NO. P. 06106
04/2012003 14:45 919-467--5927 DIEH_ & PHILLIPS PAGE 06 !
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()r zz';? Michael F. Easley, Governor
Wllltam G. Rosa Jr„ Seoretery
r? North Carolina Department of Environment and Natural Resources
r Alan W, Kilmek, RE. Director
wo 5,60 ? Y
bivialon of water Quality
March 25, 2003
i DWQ# 03-0018
Mr. Roy 8. Fitch, Jr. MAR 2 Chatham County
Fitch Creations, Inc.
2000 Fearrington Village s ---?--
Pitisboro, NC, 27,312
4 -
APPROVAL. of 401 Water Quality Certification with Additional Conditions
Dear Mr. Fitch:
You have our approval, in accordance with the attached conditions, to place permanent fill In 0.13 acre of wetlands and
125 linear feet of intermittent streams in order to construct a road crossing at.Galloway Ridge in Chatham County, as
described in your application received by the Division of Water Quality on January 9, 2003, and in additional
correspondence received February 11, 20U3. After reviewing your application, we have determined that this fill is covered
by General Water Quality Certification Number 3375, which can be viewed on our web site at
httg.&h2o.enr.state,nc.us/ncwetland$, This Certification allows you to use Nationwide Permit Number 14 when it is issued
by the U.S. Army Corps of Engineers. In addition, you should get any other federal, state or local permits before you go
ahead with your project including (but not limited to) Sediment and Erosion Control, Non-Discharge and Water Supply
Watershed regulations. Also this approval will expire when the accompanying 404 permit expires unless otherwise
specified in the General Certification.
This approval Is only valid for the purpose and design that you described in your application. If you ohange your
project, you must notify us in writing and you may be required to send us a new application for a new certification. If the
property is sold, the new owner must be given a copy of the Certification and approval letter and is thereby responsible for
complying with all conditions. If total wetland and/or stream fills for this project (now or in the future) including future phases
of this subdivision exceed one acre or 150 linear feet of perennial streams, compensatory mitigation may be required as
described in 15A NCAC 2H ,0506 (h). For this approval to be valid, you must follow the conditions listed in the attached
certification, as well as tha additional conditions listed below:
1. Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective
buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in
place prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and
Authorization Certificate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at
hhtttp:/?qi2o.enr3tate nc.us/r+cwetlands-
2. The following condition shall appty unless it is demonstrated in writing to the satisfaction of this Office that the
Impervious area of the entire, built-out project (including the cluster development) shall be less than 30% and that there
are no areas of concentrated impervious area over 30% within the project such as, but not limited to, commercial areas,
multi-family, clubhouses, maintenance areas, etc.
An additional condition is that a final, written stormwater management plan shall be approved in writing by this Office
before the impacts specified in this Certification occur per Condition No. 4 in GC No. 3375. The stormwater
management plan must include plans and specifications for stormwater management facilities that are appropriate for
surface waters classified as WS IV and designed to remove 85% TSS according to the most recent version of the NC
DENR stormwater Best Management Practices Manual. These facilities must be designed to treat the runoff from the
entire project, unless otherwise explicitly approved by the Division of Water Quality. Also, before any permanent building
Is occupied at the subject site, the facilities (as approved by this Office) shall be constructed and operational, and the
stormwater management plan (as approved by this Office) shall be implemented. The structural stormwater practices as
approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the structural
stormwater practices shall be made without written authorization from the Division of Water Quality.
A State Stormwater Permit (15 A NCAC 2H.1 000) can be considered to meet this condition.
N. C, Division of Water Quality 1617 Mail Cervlcs Center Raleigh, NC 27699.1617 (gig) 733.7015
Customer service
1 800 1323?7748
T 3.- You are required to return the attached Certification of Completion form to notify DWQ when all work included in the 401
Certification has been completed.
if you do not accept any of the conditions of this certification, 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 1508 of the North Carolina General Statutes to the Office of Administrative Hearings, Mail Service Center $714,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone Steve Mitchell in DWG's Raleigh Regional Office at 914-571-4700 or Cyndi Karoly in the
Central Office in Raleigh 919-733.9721.
Sincerely,
rnek,
AW K/Cbk
Attachments
cc: Corps of Engineers Raleigh Regulatory Field Office
Raleigh DWQ Regional Office
Central Files
File Copy
Sean Clark, 11010 Raven Ridge Road, Raleigh, NO, 27614
030018
MEMORANDUM
TO: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Galloway Ridge & Farrington Village County Chatham
Project Number 03 0018 County2
Recvd From APP Region Raleigh
Received Date 1/9/03 Recvd By Region
Project Type road crossing
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet '-
Type Type Impact Score Index Prima Supp. Basin Req. Req. -
F14 F- ©Y .Q N ? 1(i-37 wsiv NSW 0_47 F 0.13 125.00 F_ IF-
Mitigation Wetland
MitigationType Type Acres Feet
Is Wetland Rating Sheet Attached? 0 Y 0 N Did you request more info? 0 Y 0 N
Have Project Changes/Conditions Been Discussed With Applicant? 0 Y 0 N
Is Mitigation required? 0 Y O N Recommendation: 0 Issue 0 Issue/fond 0 Deny
Provided by Region: Latitude (ddmmss)
Longitude (ddmmss)
Comments:
e sure that-Todd is OK with stormwater: °Applicant state imperv_ is only 24%.
Looks to me like the cluster development exceds 30 %.
Regional Office
Central Office
u`0 1,,.
/19 ?00 vf, v^7 Page Number 1
S/ - COIAJ;ham , -7
Facility Name Galloway Ridge & Farrington Village County Chatham
Project Number 03 0018 Regional Contact: Steve Mitchell
Date:
Comments (continued from page 1):
cc: Regional Office
Central Office Page Number 2
U.S. ARMY CORPS OF ENGINEERS
Wilmington District
Action ID: 200320343 County: Chatham
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property
Authorized
Owner Fitch Creations Inc. Agent Soil & Environmental Consultants, Inc.
Attn: Mr. Roy B. Fitch, Jr. Attn: Sean Clark
Address 2000 Farrington Village Address 11010 Raven Ridge Road
Pittsboro, NC 27312 Raleigh NC 27614
Telephone Number 919-542-4000 Telephone Number 919-846-5900
Size and Location of Property (waterbody, Hillhway name/number, town, etc.): The property is
located on the east side of US 15-501, approximately 0.25 mile.north of SR 1700, north of Pittsboro,
Chatham County, North Carolina. The site is located adjacent to an unnamed tributary of Pokeberry
Creek, in the Cape Fear River Basin.
Description of Activity: This permit authorizes mechanized landclearing, excavation, the installation of
culverts, and the placement of fill required for the construction of a road crossing associated with the
development of Galloway Subdivision. Impacts to waters of the U.S. authorized by this permit total 125
linear feet of stream channel and 0.13 acre of wetlands.
Applicable Law: X Section 404 (Clean Water Act, ?d?l33 USC 1344) only. W UND,; /401 GR
®U®
Section 10 (River and Harbor Act of 1899) only. 1"
MqR
Authorization: Regional General Permit Number X00._3
14 Nationwide Permit Number WArERQUA
SECTION
Any violation of the conditions of the Regional General or Nationwide Permit referenced above may
subject the permittee to a stop work order, a restoration order, and/or appropriate legal action.
This Department of the Army Regional General Permit or Nationwide Permit verification does not
relieve the permittee of the responsibility to obtain any other required Federal, State, or local
approvals/permits. The permittee may need to contact appropriate State and local agencies before
beginning work. If you have any questions regarding the Corps of Engineers regulatory program,
please contact Todd Tugwell at telephone number (919) 876 - 8441 extension 26
Regulatory Project Manager
Authorization Date February 27, 2003 Expiration Date February 27, 2005
SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACHED
TO THE YELLOW (FILE) COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
CF: V-(?yndi Karoly, DWQ, Wetlands/401 Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650
?0
Triage Check List
Date: 7 - (2 ` Project Name: l o ws/? ?'c . L
DWQ#: I
County: ?0-?_
E
To ? . ARO Mike Parker TRO Tom Steffens
? FRO Ken Averitte ? WiRO Noelle Lutheran
? MRO Mike Parker ? WSRO Cyndi Karoly (Central Office)
RRO Steve Mitchell
_
- -
4
-1- /,C4W
, " o
From: Telephone : (919)
The file attached is being. forwarded to your for your evaluation.
Please call if you need assistance.
? Stream length impacted
J ?eam determination
Wetland determination and distance to blue-line surface waters on USFW topo maps
? Minimization/avoidance issues
? Buffer Rules (Meuse, Tar-Pamlico, Catawba, Randleman)
? Pond fill
? Mitigation Ratios ,-7' ?"i
? Ditching yn,?/e? ??Vrd t,
? Are the stream and or wetland mitigation sites available and viable? . 6 C -33. ?Sror
heck drawings for accuracy
? Is the application consistent with pre-application meetings?
? Cumulative impact concern
Com ts:

Soil & Environmental. Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com
February 11, 2003
S&EC Project # 6339
0
Q Project # 03-0018
j,
'"IE C rr
Department of Environment and Natural Resources
Division of Water. Quality
Attn: John Dorney
2321 Crabtree Boulevard
Suite 250
Raleigh, NC 27604
U L
FEB I .t , 23
Re: Reply to the Division of Water Quality's January 17, 2003 letter
requesting further information for the proposed Galloway Ridge at
Farrington Village, Chatham County, North Carolina
Dear Mr. Dorney:
This letter is in response to your letter dated January 17, 2003 (copy
attached), which requested additional information. Responses to the
information requested are provided below in the same format as they
asked.
1) The attached map shows the stream channel within the
impact area as requested. As specified in the previously-submitted
PCN form, the proposed channel impacts will total 125 linear feet of
intermittent stream channel.
2) The site plan previously submitted to your office has areas shown that
will be used for stormwater management. Several small dry detention
basins as well as a large pond will be used. I have attached another
copy of the overall impact map. The land planner for this site has
stated that the impervious area for the project will be less than 24%.
It is my understanding that if the resulting impervious surface area is
less than 24% fora site that a preapproved stormwater plan is not
required from the DWQ and is therefore not a valid request. If my
understanding is inaccurate please let me know, otherwise I will
assume that this is not a concern.
Charlotte Office: Greensboro Office: Hickory Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive 622 Coon Mountain Lane
Concord, NC 28025 Greensboro, NC 27455 Taylorsville,? NC 28681
Phone: [phone] Phone: [phone] Phone [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
3) Although the wetlands onsite have not been approved by the USACE,
they have been delineated and are shown on the previously submitted'
impact maps. It is my understanding that a USACE approved wetland
map is not required to obtain a 401 permit, nor has it ever been. The
wetlands on site have been surveyed and are shown on the attached
impact maps. If the USACE requires a site meeting to determine that
the boundaries of the wetlands are accurate then a USACE approved
wetland map can be provided to you. If the USACE does not require
such a site meeting, unless the applicable regulations have changed so
that such an approved wetland map is required in order to process the
401 application, I will assume that your office does not need a "sign-
off ' map.
If I can be of any further assistance or if you have any questions, please let
me know.
Sincerely,
5;drt.--
Sean Clark
Attachments: 1) DWQ letter dated January 17, 2003
2) Inset Impact map showing stream
3) Overall site plan with wetlands and stormwater management shown
cc: Todd Tugwell of the USACE via fax
2
OF ATF9 Michael F. Easley, Governor
William G. Ross Jr., Secretary
?O? Qp North Carolina Department of Environment and Natural Resources
r Alan Klimek, P.E., Director Division of Water Quality
> --I
d _
Project Name:
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
Fitch Creations Inc.
2000 Fearrington Village.
Pittsboro, NC 27312
Dear Sirs:
January 17, 2003
DWQ # 03-0018
Chatham County
at Farrington Village
JA n
On January 9, 2003 the Division of Water Quality (DWQ) was notified by receipt of your
application regarding your plan to fill waters for the purpose of constructing a retirement community in
Chatham County. Approval from DWQ is required to disturb these wetlands and waters. Please provide
7 copies of the following information and refer to the DWQ # listed above in your reply. Please show
these on maps of suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects'
compliance with 15A NCAC 2H .0500...
1. Please show stream channel on site plan overlay as indicated on 4 of PCN application.
2. Please provide details for the stormwater management practices for the two areas of
concentrated development.
3. Please provide a map showing all wetlands signed off by USACE.
Please telephone Beth Barnes at 919-715-8394 if you have any questions or would require copies
of our rules or procedural materials. This project will remain on hold as incomplete in accordance with
15A NCAC 2H .0505(c). The processing time for this application will begin when this information is
received. If we do not hear from you by writing within three (3) weeks we will assume you no longer
want to pursue the project and will consider it withdrawn.
JRD/bs
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Sean Clark, S&EC
Water Quality
Program

Gallioway-R?Ridge
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/hcwetiands
Sincerely,

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Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com
Department of Environment and Natural Ke
Division of Water Quality
Attn: John Dorney
2321 Crabtree Boulevard
Suite 250,
Raleigh; NC 27604
February 4, 2003
S&EC Project # 6369
DWQ Project # 03-00118
F ^ 5 20?
ilu.
wu? SECTIdN?.,.
Re: Reply to the Division of Water Quality's January 17, 2003 letter requesting further
information for the proposed Galloway Ridge at Farrington Village, Chatham County,
North Carolina
Dear Mr. Dorney:
This letter is in response to your letter dated January 17, 2003 (copy attached), which
requested additional information. We are. in. the process of gathering this information and
will submit it for your review shortly. Fitch Creations Inc: does not wish to withdraw the
application.
If I can be of any further assistance or if you have any questions, please let me know.
Sincerely,
Sean Clark
Attachments: 1) DWQ letter dated January 17, 2003
Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: [phone]
Fax: [phone]
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: [phone]
Fax: , [phone]
Hickory Office:
710 Boston Road
Taylorsvilld, NC 28681
Phone [phone]
Fax: [phone]
U Wr'eTF9 Michael F. Easley, Governor
Q William G. Ross Jr., Secretary
1-4 ;111
O North Carolina Department of Environment and Natural Resources
j ?- Alen Klimek, P.E., Director Division of Water Quality
L
Jan 17 2003
Project Name:
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
Fitch Creations Inc.
2000 Fearrington Village.
Pittsboro, NC 27312
Dear Sirs:
DWQ # 03-0018
Chatham County
Gal ay-badge at Farrington Village
c? L
JA N
On January 9, 2003 the Division of Water Quality (DWQ) was notified by receipt of your
application regarding your plan to fill waters for the purpose of constructing a retirement community in
Chatham County. Approval from DWQ is required to disturb these wetlands and waters. Please provide
7 copies of the following information and refer to the DWQ # listed above in your reply. Please show
these on maps of suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects'
compliance with 15A NCAC 211.0500. .
1. Please show stream channel on site plan overlay as indicated on 4 of PCN application.
2. Please provide details for the stormwater management practices for the two areas of
concentrated development.
3. Please provide a map showing all wetlands signed off by USACE.
Please telephone Beth Barnes at 919-715-8394 if you have any questions or would require copies
of our rules or procedural materials. This project will remain on hold as incomplete in accordance with
15A NCAC 2H .0505(c). The processing time for this application will begin when this information is
received. If we do not hear from you by writing within three (3) weeks we will assume you no longer
want to pursue the project and will consider it withdrawn.
JRD/bs
Water Quality
Program
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Sean Clark, S&EC
I?Ef
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.ne.us/hcwetiands
Sincerely,
\o?oF wArFR pc.
r
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of. Environment and Natural Resources
Alan Klimek, P.E., Director Division of Water Quality
January 17, 2003
DWQ # 03-0018
Chatham County
Project Name: Galloway Ridge at Farrington Village
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
Fitch Creations Inc.
2000 Fearrington Village
rrttsboro, NC 27312
Dear Sirs:
On January 9, 2003 the Division of Water Quality (DWQ) was notified by receipt of your
application regarding your plan to fill waters for the purpose of constructing a retirement community in
Chatham County. Approval from DWQ is required to disturb these wetlands and waters. Please provide
7 copies of the following information and refer to the DWQ # listed above in your reply. Please show
these on maps of suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects'
compliance with 15A NCAC 2H.0500.,
1. Please show stream channel on site plan overlay as indicated on 4 of PCN application.
2. Please provide details for the stormwater management practices for the two areas of
concentrated development.
3. Please provide a map showing all wetlands signed off by USAGE.
Please telephone Beth Barnes at 919-715-8394 if you have any questions or would require copies
of our rules or procedural materials. This project will remain on hold as incomplete in accordance with
15A NCAC 2H .0505(c). The processing time for this application will begin when this information is
received. If we do not hear from you by writing within three (3) weeks we will assume you no longer
want to pursue the project and will consider it withdrawn.
JRD/bs
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Sean Clark, S&EC
1 Water Quality
Program

¢It C1EP,':
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/ncwetiands
Sincerely,

Plan Detail Incomplete .r
? Please provide a location map for the project.
? Please show all stream impacts including all fill slopes, dissipators, and bank stabilization on the site plan.
? Please show all wetland impacts including fill slopes on the site plan.
? Please indicate all buffer impacts on the site plan. Of e? r s ?c? ?`-
G'
? Please indicate proposed lot layout.
? Please indicate the location of the protected buffers. PCN
? Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site
plan.
? Please provide cross section details showing the provisions for aquatic life passage.
? Please locate any planned sewer lines on the site plan.
? Please provide the location of any proposed stormwater management practices as required by GC
X Please provide detail for the stormwater management practices asd- Ik,
? Please specify the percent of project imperviousness area based on the estimated built-out conditions.
? Please indicate all stormwater outfalls on the site plan.
? Please indicate the diffuse flow provision measures on the site plan.
Avoidance and/or Minimization Not Provided
? The labeled as on the plans does not appear to be necessary. Please eliminate the or
provide additional information as to why it is necessary for this project.
? This Office believes that the labeled on the plans as can be moved or reconfigured to avoid the
impacts to the . Please revise the plans to avoid the impacts.
? This Office believes that the labeled on the plans as can be moved or reconfigured to minimize
the impacts to the . Please revise the plans to minimize the impacts.
O The stormwater discharges at the location on the plans labeled . will not provide diffuse flow through
the buffer because . Please revise the plans and provide calculations to show that diffuse flow will be
achieved through the entire buffer. If it is not possible to achieve diffuse flow through the entire buffer then it may
be necessary to provide stormwater management practices that remove nutrients before the stormwater can be
discharged through the buffer.
aQ g L
Other z.? ,?,?. ?•o„t?(,., ? ? C?." l.?-ttw,.-?s ?p----,ate bSACc
? The application fee was insufficient because over 150 feet of stream and/or over 1 acre of wetland impact was
request. Please provide $.. This additional fee must be received before your application can be
reviewed.
? Please complete Section(s) on the application.
? Please provide a signed copy of the application.
$$J Mitigation
of compensatory mitigation is required for this project. Please provide a compensatory
mitigation plan. The plan must conform to the requirements in 15 A NCAC 2H .0500 and must be appropriate to the
type of impacts proposed.
Environmental Consultants, PA
Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]

NCDENR-DWQ US Army Corps of Engineers
Attn: Mr. John Dorney Attn: Mr. Todd Tugwell
2321 Crabtree Blvd 6508 Falls of the Neuse Rd., Ste. 120
Parkview Building Raleigh, NC 27615
Raleigh, NC 27604
RE: Nationwide Permit 14/401-Water Quality Certification _
Galloway Ridge at Farrington Village --?-
Fearrington, Chatham County, North Carolina re- .? }
S&EC Project #: 01-6339] i
Dear Ms. Jones and Mr. Dorney, W^ 'FT1ANr; . GROUP
flS
On behalf of Roy J Fitch Jr., we hereby request authorization from the US Army Corps o
Engineers to use Nationwide Permit 14 to cover impacts to wetlands and a stream
channel (see attached overall map). We also request written concurrence from the North
Carolina Division of Water Quality that the project complies with the 401-Water Quality
Certifications associated with Nationwide Permit 14. A Pre-construction Notification
Application (PCN) is attached, as well as an agent authorization form.
The project is located approximately 1,500 feet north on 15-501 from the intersection of
15-501 and SR 1700. The site is located on the eastern side of 15-501. The site is also
approximately 2000 feet from the intersection of highway 15-501 and SR 1718. The site
is approximately 60 acres in size and consists of fallow farm fields and forested areas.
Please refer to the attached USGS map, which displays the location of the proposed
project.
S&EC performed a detailed wetland delineation on the property in July of 1996. No on
site confirmations of the wetland delineation have occurred.
The applicant requested a detailed wetland delineation and buffer evaluation on the
property prior to site plan development in order to avoid jurisdictional wetlands and
waters and riparian buffers to the maximum extent practicable. The proposed roadway
will impact approximately 0.13 acres of jurisdictional wetlands, 125 linear feet of
Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: [phone]
Fax: [phone]
Greensboro office:.
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: [phone]
Fax: [phone]
Hick2 Office:
710 Boston Road
Taylorsville, NC 28681
Phone [phone]
Fax: [phone]
January 9,2003
F 10*A r%
intermittent channel. These impacts are elaborated upon within the attached PCN form
and are shown on the attached inset impact maps.
The project will be a retirement community with an independent living community on the
eastern portion of the property and various degrees of assisted living on the western side
of the property. The proposed roadway is needed to connect the two portions of the
project. An unnamed tributary of Pokeberry Creek bisects the property. There were
originally several crossings proposed, however only the single crossing shown on the
attached impact maps is now proposed in order to minimize impacts.
The USACE's current policy requires applicants to avoid and minimize wetland and
stream channel impacts to the maximum extent practicable. Compensatory mitigation
may be required to offset unavoidable losses of waters of the US when impacts exceed
the requirements for notification (0.10 acre). Because the applicant has minimized
impacts to the maximum extent practicable, S&EC believes further compensatory
mitigation should not be required by the USACE.
NC-DWQ's current policy requires written concurrence for stream impacts of greater or
equal to 150 linear feet of stream length per project an/or wetland impacts exceeding 1/10
acre (for areas west of I-95). We request written concurrence that the project complies
with the 401-Water Quality Certification associated with Nationwide Permit 14. The
NC-DWQ should not require mitigation for this project because the proposed impacts are
below the thresholds. According to the land planner, the finished project will have less
than 24% impervious surface. .
Please call if you require any additional information or have any questions.
Sincerely,
Will Buetow Sean Clark
Soil Scientist In Training Biologist
Attachments:
Pre-construction (PCN) notification form
Agent Authorization form
USGS Site Vicinity Map
Chatham County Soil Survey Map
Overall site plan
Impact map
Data sheets
$200 check for 401-certification fee
Office Use Only: Form Version May 2002
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
2. Nationwide, Regional or General Permit Number(s) Requested: 14
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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: Fitch Creations Inc.
Mailing Address: 2000 Fearrin on Village
Pittsboro N.C.27312
Telephone Number: [phone] Fax Number:
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Sean Clark
Company Affiliation: Soil and Environmental Consultants
Mailing Address: 11010 Raven Ridge Road
Raleigh, N.C. 27614
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: sclarkPa sandec.com
Page I of 8
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 maybe 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: Galloway Ridge
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN): 9774 - 34 - 4459
4. Location
County: Chatham Nearest Town: Pittsboro
Subdivision name (include phase/lot number): NA
Directions to site (include road numbers, landmarks, etc.): The site is adjacent to and east of
15-501 and is approximately 1500 feet north of the intersection of 15-501 and SR 1700 The
site is also approximately 2000 feet from the intersection of highway 15-501 and SR 1718
See the attached USGS site vicinity map.
5. Site coordinates, if available (UTM or Lat/Long): Impact 1: 35° 47' 39.4" N. 79° 5'
36.4" W
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): approximately 60 acres
7. Nearest body of water (stream/river/sound/ocean/lake): An unnamed intermittent tributary
on the site feeds into Pokeberry Creek.
8. River Basin: Cape Fear
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at htt2://h2o.enr.state.nc.us/admin/mVs/.)
Page 2 of 8
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: At present, the property is divided up between old fallow
farm fields and wooded areas. Some vacant buildings and an old solid waste dump are
present on the property. The adjacent land is currently in use as residential housing.
10. Describe the overall project in detail, including the type of equipment to be used: The
overall detail of the project is to create a retirement community with an independent living
retirement village on the east side of the property and various stages of assisted living on the
west. Heavy machinery typically used for such work will be employed on this project.
11. Explain the purpose of the proposed work: The purpose of the proposed work within the
jurisdictional area is to allow for a single stream crossing to connect the assisted living
community with the independent living area.
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
on the impact map reflect the S&EC's delineation. No on-site meetings with USACE or
NCDM have been held to confirm these findings.
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.
No future work is anticipated at this time.
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. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
Page 3 of 8
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: The proposed road crossing
will impact 0.13 acre of wetlands adjacent to the stream and 125 linear feet of intermittent
stream channel.
2. Individually list wetland impacts below:
Wetland Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
es/no Distance to
Nearest Stream
linear feet
Type of Wetland***
1 Fill .125 Yes 0 Headwater wetland

* List each impact separately and identify temporary impacts. 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.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
onlineatb ://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: approximately 1.4
acres (61.000 ft2)
Total area of wetland impact
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
indicate on map)
Type of Impact* Length of
Impact
linear feet
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
leasespecify)
1 Culvert / fill 125 UT of Pokeberry Creek + 2' Intermittent

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, 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.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
www.manquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 125 LF
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:
Page 4 of 8
Open Water Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Name of Waterbod
y
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.
NA NA NA NA NA

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. 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.): The area in the proposed pond location will be
excavated.
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): stormwater
Size of watershed draining to pond: approx 40acresExpected pond surface area: 0.51 acre
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.
Initial nroiect nlans were to have multiple crossings of the channel and wetlands. This was
reduced to only one crossing to minimize the impact. This crossing_ is required to connect the
two portions of the project.
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 March 9, 2000, mitigation will be required when
Page 5 of 8
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP 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/ncwetlands/stnngide.htm].
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.
S&EC does not believe mitigation should be required because the proposed impacts have
been minimized to the maximum extent practicable, the posed channel impacts are to an
intermittent channel, and the wetland impacts are only slightly above 1/10 acre.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three 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
Page 6 of 8
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ? No
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
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.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
)?
Water Supply Buffer Requirements), or other (please identify.
Yes ? No ® If you answered "yes", provide the following information:
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* s uImpct are feet Multiplier MiRequired
tigation
1 N/A 3 N/A
2 N/A 1.5 N/A
Total N/A N/A
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Page 7 of 8
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.
N/A The project is not in a buffered basin.
XI. Stormwater (required by DWQ)
Describe impervious acreage (both 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.
The land planner stated in a phone conversation that the finished project would have less than
24% impervious cover. Stormwater ponds will be used to treat the stormwater on site (see site
plan).
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.
The site will tie into the existing sanitary sewer system.
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. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
N/A
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 8 of 8
8-28-2002 3:14PM FROM SEARS DESIGN GROUP 919 832 8140 P.5
uw 411 rtrIJt Ia. ua yiyb4byabI SEEC PAGE 05
Sail & Environmental Consultants, PA
11010 Raven Ridge Road - Raleigh. Nonb Csrolina 27614 - Phone: (919)84o5,5900 • Fa: [phone]
wwW.S2#d]eC.c9m
AGENT .AL IIORMATION pORM
AH Blanks To Be Filled In Sys Current Landowner
Name: o rJ S r rs c-
AC3dJCQ55:
phone: Sq_V r O o v
project Name/ Desmptf on UA " G _C.'
Date: Au &;V5rr a'?.-'
The Department of the Army
U.S. Army Corps of EngkK=s, Wgnvngwn Uiz t,
P.O. Box 1890
WOmington, NC MM
Attn: moo( J wc-l/
Field Offke: 1?e, (e- ; ,, W.
U
Re: Wetlands Related Consulth& and Permuting
To Whom It May C nce=
L the current MM=, oww r, hereby designate and authorize SoI'1 & -Euvironmental Consultants, PA to
act in my behaH as my agent in the pros ming of permit applicatiorw, to fumish upon, request
supp,kox ttai Wormatim in support of appikations, etc. from this day forwa xz L The ? day Of
ws?
This not ation supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for habWty and professional courEeaay reasow, is valid only for
u should cau S&EC
gvvern=ent officials to eater the property when accompanied by ?1?
t
o sxtem?t#e gafe.
Print property Owner's Name C,?sture
cc: Mx. folm 1 9rMy Mr- Se NCDE.NR - DWQ Sw & Envirot>tztez,W Consultants, PA
2321 Crabtree Boulevard
RA.g11, NC 27604
cx?as)s t]s Gym llkis m
PMB 291, 3020.1 Frospo ity Chuch Road 3817-E Lvviu ale Drive 910 Boom Road
Charlotte, NC 282(9-7197 CJtealsbmv. NC 27455 TayiMv111e, NC 2&681
1 horn: [phone] Phone: [phone] Phan (SU) 635-5820
Pax: [phone] Fax: '[phone] Fax: [phone](3
6339 1 1"=2000'
Mgr.: SC 1 8129102
Figure 1- USGS Quad
Map
Galloway Ridge
At Farrington Village
Pittsboro, Chatham County
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] • [phone]
Web Page: www.SandEC.com
FARRINGTON, N. C.
N3545-W7900/7.5
1978
PHOTOREVISED 1981
DMA 5155 I SE-SERIES V842
Sheet H2 and H3
Project #:
6339 Scale:
1"=2000'

Fi
ure 2 - Soil Surve
Project
Mgr.: SC Date:
8129102 g
y
Map
Galloway Ridge
At Farrington Village
Pittsboro, Chatham County
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] • [phone]
Web Page: www.SandEC.com

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SHFET TEMPORARY DIVERSION WATERMAIN T
CONTIN DITCH (TYP.) PROVIDE 18"
GRAPHIC SCALE
1 " = 50'
i
0 50 100
SB-5
wow wa ow aw '00 woo

WEIR
WETLAND IMPACT
5642 SQ. FT. (0.13 AC.)
WEIR
SB-3
FFE:
FE: 443.0 444.0
I
F
FFE: 445.0 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: Galloway Ridge / S&EC Project #6339up Date: 1/8/.03
Applicant/Owner: Fitch Creations, Inc. County: Chatham
Investigator: Sean Clark State: North Carolina
Do Normal Circumstances exist on the site? X Yes No Community ID:
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID: In vicinity of road
Is the area a potential Problem Area? Yes X No Plot ID: Upland next to wetland
If needed, explain on reverse.
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Toxicodendron radicans Herb. FAC 9.
2. Festuca spp. Herb. NI 10.
3. Phytolacca Americana Herb. FACU+ 11.
. Poly stichum acrosticroides Herb. FAC 12.
5. Liquidambar styraciflua Tree FAC+ 13.
6. Pinus Taeda Tree FAC 14.
7. Carpinus caroliniana Tree FAC 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAG): 71%
Remarks:
NVnRni nr;v
_ Recorded Data (Describe in Remarks):
_ Stream, Lake or Tide Gauge
_ Aerial Photographs
_ Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
_ Saturated in Upper 12 Inches
_ 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: 0 (in.) _ Water-Stained Leaves
Local Soil Survey Data
Depth to Free Water in Pit: 14+ (in.) _ FAC-Neutral Test
Other (Explain in Remarks)
Depth to Saturated Soil: 14+ (in.)
Remarks:
Wetland Delineation Performed By: Soil R Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
11 Project/Site: Galloway Ridge / S&EC Project #6339up Plot ID: Upland adjacent to wetland
1.10111&1
Map Unit Name Drainage Class: Moderate) well
(Series and Phase): Helena Field Observations
Taxonomy (Subgroup): Aquic Hapludults 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.
0-6 Al 10YR 5/3 Sand loam
6-12+ A2 10YR 7/4 Sand 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:
IL-
I
WETLANDS DETERMINATION
Hydrophytic Vegetation Present? X Yes _ No Is this sampling point within a wetland?
Wetland Hydrology Present? Yes X No Yes X No
Hydric Soils Present? Yes X No
Remarks:
IL- 11.1 ............. al
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: Galloway Ridge / S&EC Project #6339wet Date: 1/8/03
Applicant/Owner: Fitch Creations, Inc. County: Chatham
Investigator: Sean Clark State: North Carolina
Do Normal Circumstances exist on the site? X Yes No Community ID: Headwater wetland
Is the site significantly disturbed (Atypical Situation)? Yes X No Transect ID:
Is the area a potential Problem Area? Yes X No Plot ID: In vicinity of road x -in,
If needed, explain on reverse.
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1. Toxicodendron radicans Herb. FAC 9.
2. Juncus effusus Herb. FACW+ 10.
3. Lycopusyirginicus Herb. OBL 11.
Boehmena cylindnca Herb. FACW+ 12.
5. Liquidambar styraciflua Tree FAC+ 13.
6. Acer rubrum Tree FAC 14.
7. Sambucus canadensis Tree FACW-- 15.
8. 16.
Percent of Dominant Species that are OBL, FACW, or FAC
(excluding FAC-): 100%
Remarks:
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
_ Saturated in Upper 12 Inches
X Sediment Deposits
X Drainage Patterns in Wetlands
Field Observations: Secondary Indicators (2 or more required):
X Oxidized Root Channels in Upper 12 Inches
Depth of Surface Water: 0 (in.) _ Water-Stained Leaves
_ Local Soil Survey Data
Depth to Free Water in Pit: 14+ (in.) _ FAC-Neutral Test
_ Other (Explain in Remarks)
Depth to Saturated Soil: 14+ (in.)
Remarks:
Wetland Delineation Performed By: Soil & Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, North Carolina 27614
[phone]
11 Project/Site: Galloway Ridge / S&EC Project #6339wet Plot ID: In vicinity of road crossing
SOILS
Map Unit Name Drainage Class: Moderate) well
(Series and Phase): Helena Field Observations
Taxonomy (Subgroup): Aquic Hapludults 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.
0-2 Al 10YR 4/1 Sand loam
2-8 A2 10YR 5/1 Sand loam
8-12+ B 10YR 6/1 10YR 5/6 Common/distinct Sand 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
X Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks: Although the soil in this area is mapped as Helena the soil within the wetlands boundary more closely resembles a
Worsham.
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:
y
t
+ SOIL $ ENVIRONMENTAL CONSULTANTS, PA FIRST-CITIZENS BANK 15890
11010 RAVEN RIDGE ROAD ANDTRUST COMPANY
RALEIGH, NC 27814 RALEIGH, NC 27809
88301531 119 l ?l
[phone] FAX: [phone] ` ?
PAY TO THE
Cc> RDER OF v
DOLLARS 8
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5
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MEMO e- AV ?
v' • • 1
1160 L 589011' l• 53 L003001:086 L 24864911'

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MARK:\D:\PROJECT'S\GALLOWAY-2002\SD5.DWG 4/2/02 PA I N GROUP DES G H EARS S U
LANDSCAPE ARCHITECTS
625 W. JONES STREET ~
RALEIGH, NORTH CAROLINA 27603 - o
M [phone] FAX [phone] $ ~
6-8' STREET B E-MAIL: [e-mail] U ~ ~ 0
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STREET D ABG BASE EXTENDS I'-m" 4' N A
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EDGE OF PAvEMENT 4' CONSULTING ENGINEERS ~ ~
1'-(D" 219 EAST CHATHAM STREET
3' 3 8 3 3 MIN. MIN. IUALK CARY, NORTH CAROLINA 27511 qq
SEE I 919 467-9972 FAX [phone] z ( ) ( ~ o x
PLAN MINIMUM STRUCTURAL E-MAII,; diehlandphillips~u aol,com
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MINIMUM SHOULDER U11DTH ~ CARO/ A
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/ - \ / A-18 ~W-1 SHEET TITLE
lb\ cl-I '.W-16 i OVERALL
P-53 LEGEND GRADING &
60 4 ror B INLET
T0RM DRAINA TYPICAL) - E
i'• - ~ , ' j0 i r TOP -3.0' I ~ ~ 1 I \sl I ' 12, 1mPE HIGH DENSITY POLYETHYLENE DRAINAGE PIPE r \ I , a FLARED AND SECTIO 1 WITH TEES AND DOWNSPOUT C PLAN ONNECTORS u,
COMPACTED FILL DIKE i / I P=4Q W- 4Q V v TYPICAL
TOP . \ a I 16' Rep CLASS III REINFORCED CONCRETE PIPE DATE: 2/14/03
429.00 REVISIONS
422.00-/ r'29 NCDOT STD. 840.01 1 ,9(22/03 - CHANGES a
(BRICK OR PRECAST CURB INLET (BR ) PERN.C.D.W.
WITH INLET PROTECTION DURING CONSTRUCTION
I 1, / TEhff?ORARY L ,4263 TEV ORARY DIVERSION - NCDOT STD, 840.14
- ` 1 / I1 DITCH PYF' ool~ DITCH ~ IFT - _ , YARD INLET (BRICK OR PRECAST)
RIP RAA _
-
\/):buff \ _ - REINFORCED CONCRETE FLARED END SECTION 3
DRA OWN •'w , .b~,,,X';% ~ a ~ . SEE SHEET SD14 FOR PIPE, INLET AND SEDIMENT BASIN DATA A
1 STRUCTURE - ' _ _ r - 1 1 JCL UL, 4i, AN-
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PA F ROUP NG ESIG ARS D , SE
U LANDSCAPE ARCHITECTS
625 W. JONES STREET a
C:\1-Current Project Drawings\Galloway Ridge\SD6.DWG OLINA 27603 o U RALEIGH, NORTH CAR
[phone] FAX [phone] r ~ d
E-MAIL: [e-mail] 3 ~ 0y
r ~ fi WITH 0. N
N A i N N
PA LLIPS PHI EHL & DI ,
CONSULTING ENGINEERS ~
219 EAST CHATHAM STREET
CARY, NORTH CAROLINA 27511 Aq
2 - 27 z , (91967-9972 FAX(919~167 53 0 x
E-MAIL: [e-mail]
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1. DESIGN AND CONSTRUCTION OF EXTENDED DETENTION WETLANDS IS
A REQUIREMENT OF THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
AND NATURAL RESOURCES, DIVISION OF WATER QUALITY, WETLAND UNIT.
DESIGN CRITERIA FROM MANUAL "STORMWATER BEST MANAGEMENT PRACTICES"
APRIL 1999, DESIGN APPROVED BY ABOVE AGENCY.
2. FINAL CONTOURS SHALL BE ESTABLISHED AND PLANTING INSTALLED FOLLOWING
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FOR SEDIMENT AND EROSION CONTROL. UTILIZE TOPSOIL TO ESTABLISH FINAL
CONTOURS SHOWN.
CF A R q nF.IqTCTN GROUP. PA
LANDSCAPE ARCHITECTS
625 W. JONES STREET
RALEIGH, NORTH CAROLINA 27603
[phone] FAX [phone]
E-MAIL: [e-mail]
WITH
DIEHL & PHILLIPS, PA
CONSULTING ENGINEERS
219 EAST CHATHAM STREET
CARY, NORTH CAROLINA 27511
[phone] FAX[phone]
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AND NATURAL RESOURCES, DIVISION OF WATER QUALITY, WETLAND UNIT.
DESIGN CRITERIA FROM MANUAL "STORMWATER BEST MANAGEMENT PRACTICES"
APRIL 1999, DESIGN APPROVED BY ABOVE AGENCY.
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FOR SEDIMENT AND EROSION CONTROL. UTILIZE TOPSOIL TO ESTABLISH FINAL
CONTOURS SHOWN.
CF A R q nF.IqTCTN GROUP. PA
LANDSCAPE ARCHITECTS
625 W. JONES STREET
RALEIGH, NORTH CAROLINA 27603
[phone] FAX [phone]
E-MAIL: [e-mail]
WITH
DIEHL & PHILLIPS, PA
CONSULTING ENGINEERS
219 EAST CHATHAM STREET
CARY, NORTH CAROLINA 27511
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625 W. JONES STREET
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AROUND PERIMEtER OF WETLAND tHE WE' THE WETLAND, TIE A ? \ E-MAIL: searsdsign®aol.com ~ d
A. WORK SI-IOWJ ON THIS PLAN IS ADDITIONAL POOL LE1/~L 3EE SO6B-3 SINGLE WORK REQUIRED BY OVER AND SHALL BE SINGLE coRD AT la° ~ ~ ~
HEIGHT. ACCOMPLISHED AFTER SITE 15 FULLY ~ ~ o HEIGHT. SEE DETAIL t WITH ~
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SHADE TREES AND ORNAMENTAL TREES ON LEVEL 422.1 = ? ~ ~ / (919}467-9972 FAX(919}467-5327 qq ? z L, E-MAIL: diehland hilli s ol.com
m THE SOUTH SIDE ANp EASY OF THE STREET ,r P P ~ 0 x 1
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PINE PL NtINGS 0
r• U • ;;r+~' IN BASE ONTRACT
SEE SD2 PLANT I ~a N o ii'+• H® o
FESCUE G SS ~ ~q o mE 'b
PINE PLANTINGS , • `j t IN BASE CONTRACT / • k , . ' •
SEE 5016, PLANT IN as 0y`~..a `\Q o0 1 B C 4
FESCUE GRAS5 , .y °og S1 ~ Gip eoa ~
r'
• a ' SHEET TITLE
S 3:1 SANK WIT FES E
' EXTENDED ~ PLANTED T WATER LINE
TYPICAL DETENTION
t ~
WETLANDS
PLANTI NG 5D65-2 FLANT LIST FOR WETLAND 5013
THIS WOW 15 IN ADDITION TO T BASE C ATE. 9/22/03
/ y i / PONTEDARIA CORDATA (PICA KEREL REVISIONS
T EXISTING UN OUTLET WITH u n n WEED), JUNCOS EFFUSUS (SPIKE RUSH), IRIS 0 0" DEPTH PSEUDOCORUS (YELLOW-FLAG IRIS), IRIS a
WOODS LINE / i 2'-6' CLASS 2 CLASS 2 RIP R RIP-RAP WITH EXISTING VERSICOLOR (PURPLE IRIS) - 211
/ STILLING BASIN FILTER FABRIC WOODS LINE SAME AS "A" ABOVE WITH SPIRPUS
mu _ 6u DEPTH VALIOUS (BULLRUSH) AND LOBELIA CARDNALIS (CARDNAL FLOWER), WITHOUT
NOTES: NOTE: U JUNCOS EFFUSUS • 1' O.C.
1. DESIGN AND CONSTRUCTION OF EXTENDED DETENTION WETLANDS 16 SEE SWEETS 50-16 AND SD-28 FOR PLANTING IN BASE CONTRACT
A REQUIREMENT OF THE NORTW CAROLINA DEPARTMENT OF ENVIRONMENT OR DEEPER NO BOG PLANT © 6 NG• FESCUE TO THE WATER LINE 3
AND NATURAL RESOURCES, DIVISION OF WATER QUALITY, WETLAND UNIT. 0 TOTAL
DESIGN CRITERIA FROM MANUAL "STORMWATER BEST MANAGEMENT PRACTICES" ADDITIONAL WORK: PR 999, DESIGN APPROVED BY A50VE AGENCY. FESCUE GRASS A
p PER THE QUAN KEY BOTANICAL NAME COMM u, ON NAME SIZE PLANTING SPECIFICATIONS 7 BN Betula nigra River Birch
FINAL CONTOURS SHALL BE ESTABLISWED AND PLANTING INSTALLED FOLLOWING 51)(o5-1 PLANTING FLAN FOR THE OVERALL 21 PG Co 14 Multi-stem rtadena selloana
COMPLETION OF SITE GRADING AND STABILIZATION. DO NOT CONSTRUCT EXTENDED ' 4LL EXTENDED nE u 1 NATIVE GRASSES. PANIC .UM VIR3ATUM w 40 ICA Ilex comuta Carissa' Pampas Grass #3 20-30 Le&ACRE AND BROW'S TOP 'm
DETENTION WETLAND UNTIL SITE IS STABILIZED AND BASIN IS NO LONGER USED Carissa Holly #3 ~ MILLET • 40-50 LW/ACRE 20 MSG Mlscanthus sinense Japanese Silver Grass
FOR SEDIMENT AND EROSION CONTROL. 5C,4LE: ~ =20,-Oll DETENTION WETLAND GALLOWAY 24 MSV Miscanthus s' #3
WAY RIDGE Inense'Variegata' Variegated Japanese Silver Grass #3 SD6B~ x PINE REFORESTATION 1 SB Salix babylonica weeping Willow " . 2-112
SEE SD26 17 TD Taxadlum distich Cal. um Bald Cy Tess 3" Cal.
3
JOB N0. 98-1 w 38
0

U a
ROUP PA N DESIGN G SEARS ~ U
LANDSCAPE ARCHITECTS
625 W. JONES STREET ~
M.H. RING RALEIGH, NORTH CAROLINA 27603 - ~ ~ ,
COVER CAST [phone] FAX [phone] ~ ~
INTO TOP FLAT TOP 1 -0 MIN. COVER E-MAIL: [e-mail] L~ 3 OVER SEEPAGE DIAPHRAGM ~ o
TH m N
EL. 424.0 SEEPAGE DIAPHRAGM COMPACTED FILL M a
M.H. STEPS ~ ~ 2.5 ~1 ft D D ' 6 : ~ 5 E DETAIL sE ILLIPS PA DIEHL & PH ~1 ~
® 16 O.C. ,Ty~,~~ " 2'-4" 1 '-2" 4'-0" CONSULTING ENGINEERS ~ ~ ti 1 0
,N%`~\ ii yi~~ _~ll~-ii, ~ i-~ ~ , 219 EAST CHATHAM STREET
INV. OUT 422.0 , T 4 DIA. PRECAS CARY, NORTH CAROLINA 27511
MANHOLE _I ~ ~=1 (91967-9972 FAX[phone]
3 D.I. DAM E-MAIL: diehlandphillips[~aol.com ~ x DAM
FILL c~ FILL
INV. OUT 421.0 ~ ° GROUT TO ~ ~ I I ~ I I H A w w
MAKE WATER „ , ~ DIKE FILL
12 MIN. D TIGHT - T - ~ ~o` CARS/ o I \ ~ I I ~ •,,....q,,, \ / III -
, ii i ° --I ~ . FESSIp~, • y . ~
i i~i~i i iir ~o: I I I I 0 9: z i ~
~ ~ 1/2 J01(~ 1 2" E PAN, I e i Q SEAL ~ ~ I ~ 7 ~ 6 O.C,E.W. c II # JOINT I 48 RCP ~ 13371 i
8 D.I. WITH RUBBER BOOT a PERFORATED „ EACH FACE ~ ; I I ~ I I ; F ; w SOLID 4 PVC , N F. ,
' INV. OUT 417.5 4 PVC I N I ~ , GI N~ ~a z EL. = 414.50 11,9( N o
GROUT E STON ~e 'IIgN E~ o` N
~a~° ~ EL. 417.0 I ( I 1 0
D D'..p D~. D, PIPE JOINT o RIP-RAP 1 6 w 6 O.C.E.W. I I ~ N a
, r FACE N ~~aJ 112 MIN.
COLLAR
PRECAST EXTENED BASE CONCRETE CRADLE I ( ~ a STILLING ~ BASIN
i~ ( ( „ ~ I I 1 -0 ,r Q N
J-1= -
1
NO SCALE 2" CLEAR 3" CLEAR w
PREPARED #7 ®6" O.C.E.W. 6„
TOP & BOTTOM ~S ° SUBGRADE ~ p
R #6~
Sr0 H Ne
ELEVATION NON-WOVEN F
GEOTEXTILE
~ v FABRIC w
N N / \ r- ~ / \ Q
/ /
NOTE: HANDWHEEL STEM GUIDE SPACE PER / \ / \ / \ / \ / \ \
RISER STRUCTURE OPERATOR MANUFACTURERS RECOMMENDATIONS 48" 5 DIA. EACH FACE 48" \ # ~ ~
HAS OPEN TOP \ / I \ RCP , \ RCP / \ / CENTER OF a
`v / v / STILLING BASIN
MANHOLE STEP CAST IN TOP CHAMFER ALL CHAMFER ALL 1 -4 ~,P \ / \ / \ /
EDGES ( ) EDGES (TYP.) 0
EL. = 428.0 ELEV. 428 ~ ~ EDGE OF RIP RAP
a a N r~ 1'-6" 1'-6" I I
1'-O" °
DRILLED IN EACH FACE ~ ~ - I
4 ° ANCHORS TYP. a ( ) ° 6 #6 IN TWO LAYERS I (7 I I ~ L J i(1~ ^
PHILLIPS RED HEAD a ° PROVIDE WATER STOPS PREPARED SUBGRADE OUTLET tJ ~
° OR EQUAL 4 ~3 TIES ®6 O.C. ~ w STRUCTURE I .q ~ ~ 0 0
a AT CONSTRUCTION JOINTS 4 OPERATOR ~ ~
EXTENSION 7,-8„ ORT ELEVATION SUPP ELEVATION COLLAR
a
° - ~ ,
1 4 6 BARS ° # „ a a LAP FOR CLASS C
° 15>-0" 7'-6" a °z
a WEIR ~ ELEV. 423.0 SPLICE (TYPICAL ALL a
= 422.7 JOINTS a EL. ) a a NO SCALE F-~ PLAN w
° a NORMAL POOL ~7 BARS ~ ° F
48" RCP
a ~ = 422.0 8" MJ N.R.S. RESILIENT EL 2" CLEAR TYP. G BARREL
4 Q SEAT GATE VALVE a ~ 8" MJ x MJ WALL PIPE x INV. OUT
1'-4„ 8"x8" MJ TEE „ = 414.5 I
° 4 ° COVER OPENINGS WITH #7 0 6 O.C.E.W. EL.=410.5 EL.=412.5
° INLESS STEEL WIRE EACH FACE 4 STA CLASS 2 H
° TH MIN. OPENING 1 4" CLO / ° OUTLET RIP-RAP o i I 2 ~
PROVIDE 7 DIAGONAL BARS STRUCTURE 11- a
° AT 48" RCP 4 5 EACH FACE a Vd EL. = 418. ~ ~ a
_ _ , _ _ OPENING 0 U
^ 0
~-1 11=iii-~ ~ ~-i ~ INV. 8" D.I. INV. a ° ~ CLASS C SPLICE 6 RIP-RAP a
48" RCP 415.8 IN 416.2 ° FILTER FABRIC FILTER CAP ~ 2 -6 ]
OPE #7 DOWELS SL e „ 1'-g" NON-WOVEN o #57 OR #67 STONE I GEOTEXTILE a
0 ~ ® 6 O.C. T FILTER MATERIAL FILTER FABRIC a
AIN ° DR 4 KEYWAY WITH 1 1 -0 ~a 7 ra
1'-0" WATER STOP 1 4
I FOR PROVIDE OVERF LL
2" CLEAR ELEV. 414.5 SETTLEMENT CREST AT G CENTERLINE a SE ON 0 ~ d I--13 ~ MAXIMUM THICKNESS 4
° EL. = 414.5 _a _ ° ~ ° a a M--~I w
4 4 ° a GROUT a 100-YEAR EL. 429.0_ - h+l h 428.47_ S ED AND STABILIZE °
° ° a NON SHRINK o a a a ° 4 ° ~ 10 MIN. EL. 428.0 E z - ~
° a a ° a' a 9 a 4 4 N
e a S CONCRETE CRADLE 4a °
a 4 Q E L.= 412.5 a a ° I~ a
3" CLEAR 3 i_~ONTROLLED FILL 2.5 NO SCAL PLACE AS DIRECTED 7=~ a R w
1/2" EXPANSION JOINT 12 No. 57 WASHED STONE „ ®6 O.C.E.W. TOP NORMAL POOL 1 BY GEOTECHNICAL I~IIII 1 422.70_ ~
#6 PREPARED ENGINEER 1~ _II
RADE AND BOTTOM SUBG 25'---'---- 25'
OUTLET i STRUCTURE a
DRAIN 418.5 SEE DE'A!L ~
S / SCALE: 1 /2 = 1 -0
80 LF 48" CL. III RING GASKETE D ° 1 (ASTMC443) RCP 1.63%
MANHOLE STEPS ~ STILLING h ~ INV. OUT BASIN
16" O.C. (TYP.)
414.5 414.5 SEE DETAIL CONCRETE ~
CRADLE ANTI-SEEPAGE ~
0 DETAIL COLLAR -SEE SEE DETAIL ~
I
a
18" aw,
I 0 MIN. a
8' N.R.S. RESILIENT LVE CLASS 2 OUTLET STRUCTURE ~ RIP RAP r _
SEAT GATE VA
^ Z ~ a
8"x8" MJ TEE w/ S.S. - o UGH DAM SECTION THRO
ir i WIRE CLOTH INLET i:. SCALE: 1 = 20 HORIZONTAL - - - - - - - - E- - -
i PROTECTION SCALE: 1" = 5' VERTICAL 4800 RCP r o
i EXTEND 4"0 SOLID a
o ° PIPE TO FABRIC - WITH PERFORATED
0
n N CONCRETE CRADLE PIPE INTO STONE
WEIR OPENING a
(TYP.) SHEET TITLE u
l'-O" MIN. COVER
8" MJ TEE POND
WALL PIPE ANTI SEEPAGE #4 0 6 O.C.E.W. i i EACH FACE - NON-WOVEN GEOTEXTILE CONSTRUCTION
COLLAR WHERE DETAILS W
0 - - - - - - - - - - - INDICATED
i r48" CP #57 OR #67 STONE a
VERTICAL 1 -6
1 TRENCH TO 1 48„ 1 48" RCP DATE: 2/14/03 2
_ SPRING LINE „ 1 - 0 1 4"_ 5 - 0 RCP 6 COVER CONCRETE CRADLE REVISIONS W
+ MIN. KEY INTO S 1 9/22/0 AN a
o #4 REBAR CONCRETE PER N.C.D.W.O. H
@ 18 CRADLE 00 C. CONCRETE U SEEPAGE DIAPHRAGM DETAIL
z - #4 3' NO SCALE
REBARS CRADLE ^ z z
3 0
TO DI WDOWN 6'-0" z
STRUCTURE MAX a
SECTION A A CONCRETE C RADLE DETAIL ANTI SEEPAGE C( ,GE COLIAR DETAIL
SCALE: 1/2" _ 1'_0" NO SCALE NO SCALE - NO SCALE
SD71 x
3 a
JOB NO. 98-138 w

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N GROUP DESIG EARS S ~ U
MARK:\D.\PROJECTS\GALLOWAY-2002\SD14.DWG 4/2/02 LANDSCAPE ARCHITECTS
625 W, JONES STREET ~ RALEIGH NORTH CAROLINA 27603 - ~ oa
' d [phone] FAX [phone] ~ ~
E-MAIL: searsdsign@aoLcom U ~ ~
g o ~7 ~ 7~ N
YY 1TI1 ~ N , N Q
~ N ~
LLIPS PA HL & PHI DIE
CONSULTING ENGINEERS ~ ~
219 EAST CHATHAM STREET
CARY, NORTH CAROLINA 27511 919 67-9972 FAX [phone] pZ
( )4 ( )4 0 x E-MAIL: diehlandplullips~aol.com
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SEAL - v, 13371 e z
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PIPE DATA INLET DATA ~ o
INLET DATA ~ P1PE Q1 p FROM Q 10 TOTAL DIA. LENGTH SLOPE CAPACITY ~ INTO INVERT INVERT ,s~s DRAINAGE Q10 FROM TO IN PIPE CFS 1N. FEET ~ (CFS) ~ o, INLET CFS ( ) ( ~ ( ( ~
PIPE Q10 FROM Q 10 TOTAL DIA. LENGTH SLOPE CAPACITY INLET DRAINAGE Qi01NT0 INVERT INVERT FROM TO FS 1N. FEET 9' CFS No. TYPE INLET No, INLET CFS IN PIPE (C ) ( ) ( ( ) ION OUT TOP N ( ~ STAT AREA (AC.) INLET IN
STATION IN OUT TOP ( ) No. TYPE AREA (AC.) INLET 1.6 1.6 18 112.00 1.00 10.5 ~~d 0.8 - 447.70 451.20 P-36 FES FES w 0.12 w
P-1 FES FES 0.6 0.6 18 136.00 0.50 7.4 W-1 C.I. - C i 0.66 1.9 - 446.50 450.00 E-1 P-37 W-1 W-2 0.8 0.8 15 41.35 2.90 11.0 P-37 446,50 446.40 450.00 . _ 0.05 0.3 p-38 446.50 P-38 FES W-2 6.6 6.6 15 28. DO 1.88 8.9
P-2 E-1 E-2 1.9 1.9 15 29.58 0.50 W-2 C.I. C.I. 0.39 2.4 446.35 446.25 450.00 5.8 E-2 P-3 E-2 E-3 2.4 4,3 15 26.45 0.80 P-39 442.29 447.40 P-39 W-2 W-3 0.3 7.7 15 160.51 2.56 10.4
_ C I 0.12 0.8 446.04 445.94 450,10 E 3 P-4 E-3 E-4 0.8 5.1 15 119.36 1.75 8.6 W-3 C.I. - 0.27 1.4 P-41 439.38 439.28
I, 0.18 1.1 443.85 443.75 447.35 E-4 C P-40 W-9 W-8 2.1 2.1 12 95.91 0.63 2.8 0.25 1.0 - 442.50 446.00 _ ,7 15 71.00 0.59 5.0
P-5 E-4 E-5 1.1 6.2 15 42.05 1.67 8.4 W-4 C.I. - _ I, 0.36 2.2 443.05 442.95 446.75 E 5 C P-6 E-5 FES 2.2 8.4 15 102.00 3.06 11,3 P-41 W-8 W 3 1.6 3 ~ P-42 437,48
0.97 6.0 - 440.00 443.50 W-5 C.I. - E-6 Y.1. P-7 E-6 E-9 6.0 6.0 15 132.00 2.14 9.5 0.16 1.0 p_43 441.20 437,38 444.70 P-42 W-3 W-5 1.4 12.8 18 67.59 2.67 17.2 ~
0.48 3.0 439.36 439.26 443.00 W-6 C 1 E-7 C.f. - - 1.0 1.3 12 23.84 5.45 8, 3 0.17 l.1 437.18 437.08 444.70 P 43 W-4 W 5
P-8 E-8 E-7 2.5 2.5 15 28.30 0.50 4.6 I, 0.41 2.5 - 439.50 443.20 - E-8 C. P-45 436.59 P-44 W-5 W-6 1.0 15.1 24 23.97 0.83 20.7 0.22 0,9 p-46 439.50 436.49 443.00 1 6 0
- 437,18 P-9 E-7 E-11 3.0 5.5 15 158.39 1.69 8.4 W 7 Y.I. - P 7 437.08 442.00 P-45 W-6 W-7 1, l 16.1 24 53.40 0.91 2
E-9 Y.I. 0,49 3.0 p_10 437.18 P-10 E-23 E-9 1.1 21.0 24 133.22 1.54 28.1 W-8 C.I. 0.30 1.6 439.90 439.80 447.00 _ -10 W-7 0.9 0.9 12 96.97 1.03 3.6 P 46 W
P-11 436.00 4 5,90 440.35 P-11 E-9 E-10 3.0 30.0 30 112.22 0.96 40.3 0.18 1.2 P-13 436.00 3 W-9 Y.I. - E-10 C, I. 0.44 2.1 - 440.50 444.00 -47 W-7 W-12 0.9 17.9 24 125,24 1.13 24.1 H - P o
P-12 E-12 E-11 1.9 1.9 15 24.00 0.50 4, 6 W-1 O Y,I. P-9 436.58 436.48 440.20 6 2.38 16, 3 0.20 0.9 440.50 444.00 _ _ W-12 1,1 1.1 12 24.88 2.09 5,2 P 48 W 11 H
E-11 C.I. 0.24 1.5 p-12 436.58 P-13 E-11 E-10 1, 5 8.9 18 20 1 W-11 C.I. 0.22 1.1 - 438.90 442.40 _ _ W-13 1.8 1.8 12 156.64 0.50 2.5 P 49 W 14 ~a P-47 435.07
1, g - 436.70 440.20 P-14 E-10 E-13 1, 2 40.1 30 21.00 1.73 54.1 E-12 C.I. 0.31 _ _ 442.30 P-50 W-13 W-12 0.8 2, 6 15 47.96 0.50 4.6 w 0,19 0.9 P-48 438.38 434.97
4 440.35 - 5 E-13 E-14 0, 7 40, 8 30 57.00 1.79 55.0 W-12 C.I. - - 3 C.I. 0,11 0.7 435.54 435.4 P 1 E1 P-50 438.38 P-51 W-12 W-15 0.9 22.5 24 38.88 1.80 30, 4 0
1.8 434.42 434.32 440.35 P-16 E-14 E-15 1.8 42.6 30 21.00 1.96 57.6 - _ E-14 C.I. 0.33 W 13 Y,I 0.17 0.8 43B. 72 438.62 443.00 P-52 W-15 W-16 1.1 23.6 30 27.48 0,58 31.4
14 0.9 433.91 433.81 440.35 P-17 E-15 FES 0, 9 43.5 36 176.00 0.80 59.9 _ 1 Y.I. E-15 C.I. 0. W 4 0.34 1.8 - 439.50 443.00 P-53 W-16 W-17 0, 7 24.3 30 47.00 0, 63 32.6
2, 8 - 444.60 448.20 P-18 E-16 E-17 2.8 2.8 15 24.80 0.50 4.6 -15 C.I. 1 1.1 434.27 434.17 441.90 30 27,33 0.67 33.7 0.2 P-54 W- J 7 W-18 0, 7 25.0
E-16 C.L 0.46 W 4 1.5 444.48 444.38 448.10 P-19 E-17 E-23 1.5 4.3 15 187.25 1.63 8,3 - 0.7 434.01 433.91 442.00 12 173.30 0.87 3.3 0.15 P-55 W-19 W- l8 1.4 1.4 w
E-17 C.I. 0.2 W 16 C.I. 5.3 - 445.20 448.70 P-20 E-18 E-19 5.3 5.3 15 210.00 1.19 7. i - i 7 C.I, 0.15 0.7 433.61 433.51 442,10 P-56 W-18 W-26 0.7 27.1 30 198.03 0.91 39.2
E-18 Y.1. 0.85 W 6.3 442.69 442.59 445.50 P-21 E-19 E-21 6.3 11.6 18 95.73 2.21 15.7 P-54 433.33 433.23 442.00 P-57 W-20 W-21 0.9 0.9 12 52.88 0.50 2.5 0.11 0.7 p_55 438.00
E-19 Y.I. 1.02 1 .9 18 28.47 1.97 14.8 W-18 C.l. - 0.06 0.4 - 440.59 443.90 P-22 E-21 E-22 0.9 2 P-58 W-21 W-22 0.9 1.8 12 95.78 0.50 2.5
E-20 C.I. P-21 440.47 15.6 24 44.11 0.86 21. D W-19 Y.I. 440.37 443.90 P-23 E-22 E-23 2.7 0.23 1.4 - 439.50 443.00 _ P-59 W-22 W-23 0.7 2.0 12 40,28 0.60 2.8
E-21 C.I. 0.14 0.9 P-24 440.47 P-24 E-20 E-21 0.4 0, 4 15 24.00 0.50 4, 6 W-20 Y.I. - 0.14 0.9 430.50 433.50 0 _ P-60 W-23 W-24 0.2 2.2 12 71.85 0.70 3.0 H
0.44 2.7 439.81 439.71 444.50 _ 5 2 0 2.0 )5 108.00 0.50 4.6 W-21 Y.l. E-22 C.I. 41.33 P-25 E-24 E 2 0.13 0.9 430.24 430.14 433,50 - -25 W-24 0.8 0.8 12 124.69 1.43 4.3 Q
P-19 4 439.23 445.10 0.8 0.8 15 28.30 4.38 13.6 W-22 Y.I. 0.09 0.7 429.66 429.56 433,50 P 61 W P-62 W-24 W-27 0.9 3.9 15 57.64 0.65 5.2 d
E-23 C.I. 0.18 1.1 p-23 439.33 P-26 E-26 E-25 - 4 .50 440.00 P-27 E-25 E-27 1.9 4.7 15 177.03 1.73 8.5 W-23 Y,I. 0.03 0.2 429.32 429.22 433.80 - P-63 W-26 FES 1.1 28.2 30 116.00 3.73 79.5
- 4 Y.I. 0.33 2.0 36 E2 P-25 435.96 P-28 E-27 E-28 2.2 6.9 15 30.57 2.07 9,3 W-24 Y.I. P 60 428.72 _ 0.23 0.9 428.62 433.00 1.17 7.0 H - P-61 428,72 P-64 W-27 W-28 0.9 4.8 15 27.85 ~
I 0.31 1.9 p-26 435.96 435.86 440.40 15 134.73 2.64 10.5 E-25 C, . P-29 E-28 E-30 0.9 7.8 0.22 0.8 - 430.50 433,50 P-65 W-28 W-29 0.9 5.7 15 45.23 1,40 7.7 0
- 437.20 440.70 3.31 11.8 W-25 Y.I. ,10 68.00 0, 70 8.8 ~ 0.26 1.1 431.43 431.33 436 P-66 W-29 FES 0.7 6.4 18 ~
E-26 C,I. 0.12 0.8 P-30 E-29 E-30 3.6 3.6 15 154.00 W-26 CJ. 0, 35 2.2 432.80 432.70 436.30 P-31 E-30 E-33 3.6 15.0 24 86.76 D. 93 21, 9 0.15 0.9 428.25 428.15 435.00 P-67 W-33 W-32 1.5 1.5 12 71.00 0.50 2.5
E-27 C.I. - W-27 C.I. - 0.13 0.9 432.07 431.97 435.80 P-32 E-31 E-32 1.7 1,7 15 40.20 2.24 9.7 0.14 0.9 427,82 427.72 435.00 p-68 W-31 W-32 1.0 2.0 12 73.54 2.04 5.1
E-28 C.i, W-28 C.I, - 0.58 3.6 - 433.50 437.00 p-33 E-32 E-33 2.5 4.2 15 116, 69 3.26 11.7
E-29 Y.I. P-29 428.41 24.00 1.46 27, 4 W-29 C.I, - 0.10 0.7 427.09 426.99 434.20 p_89 W-30 W-31 1.0 1.0 12 131.13 0,50 2.5 a
0.58 3.6 428.31 432.50 P-34 E-33 E-34 1.1 20.3 24 - E-30 Y.I. - P-30 428.41 W 30 Y.I, 0.21 1.0 - 430.00 433.00 p-70 W-32 W-34 1.7 5.2 15 75.00 1.17 7.0 z
P-35 E-34 FES 1.8 22.1 30 108.00 0.52 29,6 0.28 1.7 - 432.30 435,80 8 W-31 Y.I. - E-31 C.I. P-126 FES E-35 62.2 62.2 48 28.00 0.50 101. 0.25 1.0 429.34 429.24 432,50 p-71 W-34 W-35 1.1 6.3 15 70.08 1.72 8.5 ~ l ~ - 4 h~ P 67 427.7 1 B 103.06 1.00 10.5
_ 0.40 2.5 431.40 431.30 434.90 •8 W-32 C.I. E 32 C.I. 0,27 1.7 427.64 431,70 P-72 W-35 W-37 1.5 7.8 w 0 P-fib 427.74 2 5 p
- 1 427,50 P-121 E-35 E-36 1.6 63,8 48 24.00 0.50 1 P 3 427.40 431.20 1.8 P-73 W-36 W-37 1.5 1,5 12 70.51 0.50 0.26 1.5 - 428.10 431.10 18 108.00 1.27 11.9
E-33 C.f. 0.18 1.1 P-33 427.50 P-128 E-36 FES 1.6 65.4 48 24.00 0.50 10 W-33 C.I. - P-74 W-37 FES 1.8 11.1 0.12 1.1 426.76 426.66 430.50 112.00 0.50 7.4
0.29 1.8 427.05 426.95 431.20 W-34 C.I. E-34 C.I. - P-75 FES FES 0.9 0.9 18 0.22 1.5 425.45 425.35 429.70 24.00 0.50 4.6 ~
0.36 1.6 429.46 429.36 435.80 W-35 C.I. E-35 C.I. - P-76 W-38 W-39 0.9 0.9 15 0.32 1.5 - 427.90 431.40 6.54 4.74 14.1
0.36 1.6 429.24 429.14 435.80 W-36 C.I. E-36 C.I. - - 424.32 P-77 W-39 W-40 0.9 1.8 15 5
Q W-37 C,I. 0.30 1.8 P 72 424.22 430.90 0.50 4.6 P-73 427.55 P-78 W-40 W-41 1.4 3.2 15 94.70
0.13 0.9 - 443.40 446.90 p-79 W-41 W-43 1.1 4.3 15 118.27 1.38 7.6
.I. =CURB INLET N.C.D,O,T. STANDARD) W-38 C.l. C W-39 CJ. 0.12 0.9 443.28 443.18 446.90 P-80 W-43 W-42 1.0 5.3 15 20.62 1.45 7.8
Y.l. =YARD INLET N. C. D. 0. T. STANDARD) - Y.I. - W 40 0.30 7.4 440.50 440.40 444.00 p-81 W-45 W-56 ~.2 8.7 18 134.61 1.23 11 J q
W-41 Y.I. 44, 00 - 7, 5 15 82.83 2.43 10.1 ~ 0,21 1.1 439.93 439.83 4 Q P-82 W 44 W-45 r.2
W-42 Gl, _ 5.5 15 68.34 1.81 8.7 ~ _ 0.30 2.0 437,80 437.70 443,50 p-83 W-46 W-44 0.7
W-43 Y.I. - - 1.70 - - 1.7 4.8 15 102.90 1.00 6.5 ~ c . 0,22 1.0 438.20 438.10 44 P-84 W 47 W 46
P-82 437,10 _ _ _47 2.1 3.1 15 51.04 0.50 4.6 A 0,2$ 2.0 437.00 440.00 P 85 W 48 W ~
W-44 Y.I. - P-83 437.10 P-86 W-49 W-48 1.0 1.0 12 54.83 0.50 2.5 0
W-45 Y.I. 0.17 1.2 434.99 434.89 441.50 4 00 0.99 10,5 0 P-87 W-42 W-51 1.0 7.3 18 14 . x
CITY DISSIPATOR DATA _ VELD W 46 Y.l. 0.10 0.7 438.44 438.34 443.50 _ 16.3 24 67.93 0.93 21.9 a P-88 W-50 W 51 0,7 ~
V~o EXIT D1SSIPATOR SIZE i W-47 Y.I. - _ 0.24 1.7 439.57 439.47 444.00 _ _ 13,2 13.2 18 24.00 2.85 17.8 P 89 FES W 50 ~ A
PIPE N0. (FPS) L W DEPTH CLASS D5o W-48 Y.I, _ _ _ 0.29 2.1 439.93 439.83 443.50 _ 2, 4 15 72.00 2.08 9.4 ~ P-90 FES W 50 2.4
VILLA AREA W-49 Y.I. - 40.0 443.70 0.25 1.0 4 2 25.8 24 75.98 2.35 34.8 ~ - .00 P-91 W-51 W-52 2.2 P 89 431
P-1 2.7 5' 4' 22" B 6" W-50 C.I. 0.10 0.7 436.90 441.40 p-92 W-52 W-53 1.8 27, 6 24 49.36 2.68 37.1 P-90 437.00 Fri ~
P-6 10.1 8' 4' 22" B 6" P-87 436.27 P-93 W-54 W-53 1.0 1,0 15 24.00 0.50 4.6 a
- 9, 4 24' 9' 22" B 13" W-51 C.I. P 17 0.35 2.2 -88 436.27 436.17 441.30 .46 0.93 39.7 ~ o P P-94 W-53 W-55 1.8 30.4 30 77
P-35 6.6 15' 8' 22" B 6" W-52 Y.I. 438.50 z 0.31 1.8 434.38 434.28 p-95 W-55 W-56 2,2 32.6 30 74.02 1.07 42.5 ~
1 P-92 432.96 432.86 437.80 _ 9 8 P-96 W-56 W-57 0.7 42.0 36 37.00 0.68 55.2 0 2 P-93 432.96 ~
W-53 C.I. MAIN CAMPUS -54 C.I. P-97 W-57 W-58 0.9 42.9 36 47.52 0.71 56.4 - 3.08 437.80
5 4 22 B 6 W P-36 4.2 0.14 1.0 43 _ P-98 W-58 W-59 1.2 44.1 36 24.00 0, 75 57.9 a
' 22" 8 13" W-55 Y.l. P-63 14.7 20 8 0.30 2.2 432.14 432.04 438.00 - .23 P-99 W-59 W-60 0.9 45.0 36 168.81 0.78 59.1 w P 81 433 431,15 441.00 ~
0.10 0.7 p_95 431.25 _ - 1.2 11.5 24 178.76 0.52 16.4 P 100 W-61 W 86
P-66 5.4 9' S' 22" B 6" W-56 C.I. 0 28.46 5.13 151.5 F 0.12 0.9 430.90 430.80 441,0 P-101 W-60 W-70 1.0 47.2 36 ~
P-74 7.6 9' S' 22" B 6" W-57 C.I. 0.17 1.2 430,46 430.36 440.80 _ -89 W-61 0.8 10.3 24 124.02 0.40 14.3 P 102 W
P-75 2,6 6' S' 22" B 6" W-58 C,l. > 6" 1 6 22 B _ 0.9 430.18 430.08 440.80 _ _ _ p, g 9.5 ? 8 138, 84 1.47 12.8 a 0.12 P 103 W 68 W 69 w
P-100 5.2 2 W 59 C.I. - 0.20 1.0 428.76 428.66 436.30 p-104 W-67 W-68 1.7 8.7 18 110.76 1.23 11,7 ~
P-119 12.1 36' 14' 30" 1 13" W-60 C,I. 0.17 1.2 426.74 426,64 436,30 P-105 W-66 W-67 1.9 1.9 12 16.85 0.50 2.5
P-128 8.4 32' 12' 30" 1 13 W-61 C.I. 0.05 0.4 - 440.00 443.50 -106 W-65 W-67 1.2 5.1 15 124.71 1.12 6.8 0 P
W-62 Y.I. 0.16 1.1 439.10 439.00 442.00 P-107 W-64 W-65 2.4 3.9 15 15.06 0.66 5.2
W-63 Y.I. 0,33 2.4 436.54 432.54 441.00 p-108 W-63 W-64 1.1 1.5 12 29.03 8.47 10.4
W-64 Y.I. 0.17 1.2 432,44 432.34 434.50 P-109 W-62 W-63 0.4 0.4 12 38.86 2.32 5.4 y
W-65 Y.I, - 431, 02 439.50 48.1 36 102.58 1.33 77.2
W-66 Y.I. 0.26 1.9 P-1i0 W-70 W-71 0.9 P-105 430,94 .08 0.61 78.3 0
W-67 Y.I. 430,84 433.50 P-111 W-71 W-72 0.8 48.9 42 101 ~ 0.24 1,7 p-106 430,94
W-68 Y.I. - W-76 1.2 50.1 42 223.55 0.62 79.0 429.48 429.38 433.00 P-112 W 72 0.20 0.8 0,8 12 54.78 0.50 2.5 x
W-69 Y.I. . P-113 W-73 W-74 0,8 a 0.19 0.8 427.34 427,24 434.00 126.76 0.50 2.5 0
W-70 Y.l. P-114 W-74 W-75 0.8 1.6 12 0.24 0.9 427.20 427.10 433.00 43.24 5.48 8.4 a
P-11.5 W-75 W-76 0.6 2.2 12 _ 3
W-71 Y.I. 0,24 0.8 41./4 4L~.04
W-72 Y.I. 0.27 1.2 425.02 424.92 432.50 P-116 W-76 W-77 2.2 52.5 48 112.57 0.35 85.2 a - 0
W-73 Y.I. 0.16 0.8 430.00 433.00 P-117 W-79 W-77 0.7 1.2 12 102.30 0.50 2.5 z -
W-74 Y.I. P-118 W-78 W-79 0.5 0.5 12 117.62 0.50 2.5 0.21 0.8 429.73 429.63 433.50 104.00 0.37 119.9 0
W-75 Y.I. 432.50 0.18 0.6 11429.00 2 423 428.90
PP- - 119 120 WW- -81 77 W- FES 82 0G., 97 0.9 66,7 l 54 2 63.05 3.17 6.3 a P-112 423.53 423.43 433.20
W- 76 C.I. W-77 C.I. 0.36 2.2 P-115 426.53 P-121 W-80 W-82 1,2 1.2 12 62.40 3.21 6.3
P-116 423.04 - - -83 0.2 2.3 12 90.67 2.65 5,8 82 W P W 0.10 0.7 P-117 429.30 422.94 433.00 122
P- 125 423.04 P- 123 W_83 W_84 2.1 16.4 30 45.35 0.40 26.0
W-78 Y.l. 0.14 0.5 430.50 433.50 P-124 W-84 W-85 1.4 17.8 30 104.92 0.40 26.0 x
W-79 Y.I. 0.20 0.7 429.91 429.81 433.00 P 125 W-85 W-77 1.8 19.6 30 169.10 0.63 32.6
W-80 Y.I. .00 433.00 P-129 W-86 W-83 0.5 12.0 24 119.06 0.31 16,2 a 0.31 1.2 430
W-81 Y.I. SHEET TITLE 0,19 0.9 430.00 433.00
P-120 428.00 431.00 0,20 0.2 P-121 428.00 427.90 P-122 425.50 STORM
W-82 Y.I.
W-83 C.I. 0.22 1.7 424.90 429.00 a P-129 425.00 ~
0. 50 DRAINAGE 20 1.4 424.72 424.62 429
W-84 C.l. 0.26 1.8 424.20 424.10 430.50
W-85 C.I. a 0.08 0.5 425.71 425.61 431,30 DATA
W-86 C.I.
SEE SHEET 5D5 FOR DATE: 2/14/03 :T 5D5 FOR ROOF DRAIN INVERTS
REVISIONS w
1 9/22/03 - CHANGES a rA
PER N~ C.2.W.
aU
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SCALE: NONE
SD14 x
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LANDSCAPE ARCHITECTS w
625 W. JONES STREET
RALEIGH NORTH CAROLINA 27603 0 ~
[phone] FAX [phone] ~ ~ E-MAIL: [e-mail] ~ 3
6-8' STREET B ~ 0
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STREET D ABC BASE EXTENDS 1'-0" 4' m ~
LINE OF ROADWAY BEYOND EDGE OF PAVEMENT EDGE OF PAVEMENT IPS PA N L PHILL EH & DI
4' CONSULTING ENGINEERS ~ ~
1'-0" 3' 3' S' 3' 3 219 EAST CHATHAM STREET
MIN. MIN. WALK CARY, NORTH CAROLINA 27511
SEE ~ -9972 FAX [phone] ~ (91967 ( ) 0 x E-MAIL; diehlandplrillips~aol,com
PLA MINIMUM STRUCTURAL U
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SHEET TITLE o
OVERALL
W- W-16 i cp -1 w
To P-5 I. f LEGEND GRADING & a 5 4 f
S i g W-24 p.6 W~ rar 0 W- Tar - e INLET ToRM DRAINA _ J
- - - - S TOP _3A' p -4 / s _ (TYPICAL) POLYETHYLENE DRAINAGE PIPE
COMPACTED 1 - ' ~A 4 3 fz' fIDPE HIGH DENSITY • l \ ~ f a PLAN T FLARED END SECTIO f WITH TEES AND DOWNSPOUT CONNECTORS rA • . \ \ TYPICAL
FILL DIKE r 1 / 3~ R-4.0.. W. - _ ~ • W ~a
TOP 429.00 16" RCP CRETE PIPE DATE; 2/14/03 W-71 / \ _ CLASS III REINFORCED CON x
\ i - I' f w REVISIONS
v NCDOT STD. 840.01 a
_ - I , , ~ CURB INLET (BRICK OR PRECAST) F
/ INV. OUf - - WITH INLET PROTECTION DURING CONSTRUCTION u
I - 1, 7 - ~ TE'MP,\ORARY DIV l 426.57 / TEMPORARY DIVERSION NCDOT STD. 840.1
/ DITCH ~7`r : 1 11CLASS I _ - 1 - DITCH 1YP YARD INLET (BRICK OR PRECAST)
- ry RIP RAP - -
~ I i N - - - - REINFORCED CONCRETE FLARED END SECTION 3
1 ro INV. OUf 1 427.00 / - - SEE SHEET SD14 FOR PIPE, INLET AND SEDIMENT
A BASIN DATA m
SD5 WEST CAMPUS OVERALL GRADING PLAN
SHOWING: SCALE.
I~Lp 1 =50r -0n ~
STORM b DRAINAGE c ~ x
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EROSION CONTROL d
ca N
m o JOB NO. 98-138 w ~

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C.~l-Current Project Drawings~Galloway Ridge~SD6.DWG N GROUP PA EARS DESIG S H ~ U
LANDSCAPE ARCHITECTS
625 W,10NES STREET ~o
RALEIGH, NORTH CAROLINA 27603 ~ ~
[phone] FAX [phone] ~ ~
E-MAIL: [e-mail] U ~ ~ 0
z WITH H a M
N Q N ~
PHILLIPS PA DIEHL &
CONSULTING ENGINEERS ~ ~
z 219 EAST CHATHAM STREET
CARY, NORTH CAROLINA 27511 qq
919 467-9972 FAX(919}467-5327 ~ z ~ ~ o x
'lli s aol,com E-MAiL: d~ehlandphi p ~
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SEE SHEET SD14 FOR PIPE, INLET AND SEDIMENT
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JOB No. 98-138 w