20011549 Ver 1_COMPLETE FILE_20010102

\J A TF Michael F. Easley, Governor
\O?0 9QG William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r Gregory J. Thorpe, Ph.D.
> ___q Acting Director
Division of Water Quality
'April 18, 2002
Wake County
DWQ Project # 01-1549
APPROVAL of 401 Water Quality Certification, Additional Conditions, Wetland Restoration
Program and Neuse River Buffer Rules
Pulte Homes Corp.
C/o Gray Methven
401 Harrison Oaks Blvd., Suite. 250
Cary, NC 27513
Dear Mr. Methven:
You have our approval, in accordance with the attached conditions and those listed below, to place
fill material in 810 feet of streams and their associated buffers for the purpose of developing the Long
Lake Subdivision in Wake County, as described in your application received by the Division of Water
Quality on October 22, 2001. After reviewing your application, we have decided that this fill is covered
by General Water Quality Certification Number 3289, which can be viewed on our website at
http:/ih2o.enr.state.nc.us/ncwetlands. This certification allows you to use Nationwide Permit Number
14 when the Corps of Engineers issues it. This certification allows you to use the Neuse River Buffer
Rules (15A NCAC 213.0233). In addition, you should get any other federal, state or local permits before
you go ahead with your project including (not limited to) Sediment and Erosion Control, Coastal
Stormwater, Non-Discharge and Water Supply Watershed regulations. This approval will expire when
the accompanying 404 or CAMA permit expires unless otherwise specified in the General
Certification. This Certification replaces the one issued December 21, 2001 and revised on April 10,
2002.
This approval is only valid for the purpose and design that you described in your application except
as modified below. 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 this Certification and approval letter and is thereby responsible for complying with all
conditions. If total wetland fills for this project (now or in the future) exceed one acre, compensatory
- - - rxllti y ' - - be= rewired as des€-i?bed-i n --15 A=-NG-AG
must follow the conditions listed in the attached certification and any additional conditions listed below.
Deed notifications or similar mechanisms shall be placed on all lots within remaining
jurisdictional wetlands and waters or area..within 50 feet of all streams and ponds to notify the
state in order to assure compliance for future wetland and/or water impact. These mechanisms
shall be put in place 30 days of the date of this letter of the issuance of the 404 Permit
(whichever is later).
2. An additional condition is that stormwater shall be directed to sheetflow at non- erosive
velocities through the protected stream buffers.
d'A
NCDENR
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Bail 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/ncwetlands
An additional condition iitat a final, written stormwater management plan shall be approved in
writing by this Office for rctr phase of the development before any permanent building is
occupied in that phase as Slows:
a. The Stormwater Marigement Plan for Phase 1 is hereby approved based on the plans
submitted by Withers adRavenel dated March 28, 2002.
b. The stormwater manapnent practice for Phase 2 shall consist of a constructed wetland. A
final written storm wakmanagement plan shall be approved in writing by this Office before
any permanent buildigis occupied in Phase 2.
c. The stormwater manalment practice for Phase 3 shall consist of a constructed dry detention
basin that detains anddeases the first inch of rain through the entire 50 foot Neuse buffer. A
final written stormwat management plan shall be approved in writing by this Office before
any permanent buildiVis occupied in Phase 3.
d. The stormwater mana¢ment practice for Phase 4 shall consist of a constructed dry detention
basin that detains and leases the first inch of rain through the entire 50 foot Neuse buffer
and a constructed wetted- A final written stormwater management plan shall be approved in
writing by this Officelfore any permanent building is occupied in Phase 4.
e. The stormwater manaFnent practice for Phase 5 shall consist of a constructed wetland. A
final written stormwair management plan shall be approved in writing by this Office before
any permanent buildlgis occupied in Phase 5.
f. The stormwater manalment practice for Phase 6 shall consist of constructed wetlands. A
final written storrnwaft management plan shall be approved in writing by this Office before
any permanent buildigis occupied in Phase 6.
The stormwater managerrit plans must include plans and specifications as discussed in the
correspondence dated Ap12, 2002 from Withers and Ravenel. Also, before any permanent
building is occupied in eat Phase of the subject site, the facilities for that Phase (as approved by
this Office) shall be consteted and operational, and the stormwater management plan (as
approved by this Office) All be implemented. The structural stormwater practices as approved
by this Office as well as dinage patterns must be maintained in perpetuity. No changes to the
structural stormwater pra&es shall be made without written authorization from the Division of
Water Quality.
4. The discharge from basins3 and 14 shown on the Erosion and Sediment Control Plan must be
redesigned to ensure sheebw across Zone 1 of the protected stream buffers.
',,:;,:ate
_- _ tional"Wfi e? app`i 6-v?rfeeded for fte design"of the "stream cro u - " -
the unnamed tributary of kiey Creek. The following issues must be addressed:
a. Cross-sections depictithe width of the culverts to be used.
b. How they wil'1 providdbr low- flow passage of water and aquatic life (for instance, will they
be placed below the eb.ation of the streambed?),
c. Will the culverts charmthe bankfull width of the stream?
d. Will inlet and outlet peection or relocation of the stream be required?
e. How will they ensurettt dis-equilibrium of streambeds or banks, adjacent to or upstream
and down stream of titabove structures will not occur?
f. Whether either of the crossing within a FEMA- designated floodway.
6. Separate written approval including compensatory mitigation will be required from DWQ for
stream and buffer impactsfiom the construction of Toscana Drive.
7. Upon completion of the project, the applicant shall complete and return the enclosed
"Certification of Completin Form" to notify DWQ that all work included in the 401
Certification has been connleted. The responsible party shall complete the attached form and
return it to the 401/ Wetland Unit Division of Water Quality.
We understand that you have dbosen to contribute to the Wetland Restoration Program in order to
compensate for these impacts to wWands and/or streams. In accordance with 15A NCAC 2R.0402, this
contribution will satisfy our compcesatory mitigation requirements under 15A NCAC2H.0506 (h).
According to 15a NCAC 2H.0506(i), 372 feet of restoration will be required. Until the Wetland
Restoration Program receives anddears your check (made payable to: DEHNR- Wetland Restoration
Program), wetland or stream fill still not occur. Mr. Ferrell should be contacted at 919-733-5219 if you
have any questions concerning theWetland Restoration Program. You have one month from the date of
this Certification to make this payment. For accounting purposes, this Certification authorizes the
fill of 810 feet of streams and in liver and, sub basin 030402 and 372 feet of stream mitigation and
72,048 square feet of buffer mitotion are required. Please be aware that the Wetland Restoration
Program (WRP) rules require minding of acreage amounts to one quarter acre increments (15A
2R.0503(b)).
If you do not accept any of theconditions 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* Chapter 150B of the North Carolina General Statutes to the Office
of Administrative Hearings PO Boa 27447, Raleigh, N.C. 27611-7447. This certification and its
conditions are final and binding u*ss 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 John Domey at 919-733-9721 or Steve Mitchell
at our Raleigh Office at 919-571-4100.
Sincerely,
I -
Attachment U
cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
File copy
Central Files
Ron Ferrell, WRP
Todd St. John, DWQ
Ken Jesnick, Withers and Raenel
rJ
3
NORrFH CIROLINA-DIVISON OF WATER QUALITY
401 ]HATER QUALITY CERTIFICATION
SUMMARY OF P"ERMNTED IMPACTS AND MITIGATION REQUIREMENTS
In accordance with 15A i?iCAC 1H .0500, Pulte Homes Corporation has permission as outline below
for the purpose(s) of proptosed doeloping the Long Lake Subdivision. All activities associated with
these authorized impacts r rust beeonducted with the conditions listed in the attached certification
transmittal letter. THIS CERTIBCATION IS NOT VALID WITHOUT THE ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENT WETLAND RESTORATION PROGRAM
LOCATION
COUNTY:
BASIN/SUBBASIN
Lang Lalt Subdivision
Wake C(int
0310402
As required by 15A NCACZH .0506, and the conditions of this certification, you are required to
compensate for the above, impacathrough the restoration, creation, enhancement or preservation of
wetlands and surface waters as otlined below prior to conducting any activities that impact or
degrade the waters of the state.
Note: Acreage requirements proposed to be mitigated through the wetland Restoration Programs lt?
must be rounded to one-quarter acre increments according to 15 2R .0503(b)
acres of Class WL vietlands
ac-a-es of *arian wetland
acres of mn-riparian wetlands
acres of Class SWLvetlands
372 linear feet of stream
72.048 square feet of strearabuffers
One of the options you haveavailable to satisfy the compensatory mitigation requirements is
through the payment of a fee tollse Wetlands Restoration Fund per NCAC 2R .0503. If you choose
this option, please sign this formmd mail it to the Wetlands Restoration Fund at the address listed
below. An invoice for the appropriate amount of payment will be sent to you upon receipt of,this
form. PLEASE NOTE, TEE ABOVE IMPACTS ARE NOT AUTHORIZED UNTIL YOU
- --- RECfn=Ef) R0CE-S5 E-a-B Y-T HE - - -
WETLANDS RESTORATION PROGRAM.
Signature Date
WETLANDS RESTORATION PROGRAM
DIVISON OF WATER QUALITY
1619 Mail Service Center
RALEIGH, N.C. 27669-1619
(9t9) 733-5208
4
V 4A rFR Michael F. Easley, Governor
C? Q William G. Ross Jr., Secretary
G North Carolina Department of Environment and Natural Resources
r Gregory J. Thorpe, Ph.D.
_ Acting Director
Q -? Division of Water Quality
April 10, 2002
Wake County
DWQ Project # 01-1549
APPROVAL of 401 Water Quality Certification, Additional Conditions, Wetland Restoration
Program and Neuse River Buffer Rules
Pulte Homes Corp.
C/o Gray Methven
401 Harrison Oaks Blvd., Suite. 250
Cary, NC 27513
Dear Mr. Methven:
You have our approval, in accordance with the attached conditions and those listed below, to place
fill material in 810 feet of streams and their associated buffers for the purpose of developing the Long
Lake Subdivision in Wake County, as described in your application received by the Division of Water
Quality on October 22, 2001. After reviewing your application, we have decided that this fill is covered
by General Water Quality Certification Number 3289, which can be viewed on our website at
http://h2o.enr.state.nc.us/ncwetlands. This certification allows you to use Nationwide Permit Number
14 when the Corps of Engineers issues it. This certification allows you to use the Neuse River Buffer
Rules (15A NCAC 213.0233). In addition, you should get any other federal, state or local permits before
you go ahead with your project including (not limited to) Sediment and Erosion Control, Coastal
Stormwater, Non-Discharge and Water Supply Watershed regulations. This approval will expire when
the accompanying 404 or CANIA permit expires unless otherwise specified in the General
Certification. This Certification replaces the one issued December 21, 2001.
This approval is only valid for the purpose and design that you described in your application except
as modified below. 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 this Certification and approval letter and is thereby responsible for complying with all
conditions. If total wetland fills for this project (now or in the future) exceed one acre, 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 and any additional conditions listed below.
Deed notifications or similar mechanisms shall be placed on all lots within remaining
jurisdictional wetlands and waters or areas within 50 feet of all streams and ponds to notify the
state in order to assure compliance for future wetland and/or water impact. These mechanisms
shall be put in place 30 days of the date of this letter of the issuance of the 404 Permit
(whichever is later).
2. An additional condition is that stormwater shall be directed to sheetflow at non- erosive
velocities through the protected stream buffers.
VXX
N. C. Division of Water Quality, 401 Wetlands Certification Unit, NCDEM1ii
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,'ncwetlands
3. An additional condition is that a final, written stormwater management plan shall be approved in
writing by this Office for each phase of the development before any permanent building is
occupied in that phase as follows:
a. The Stormwater Management Plan for Phase 1 is hereby approved based on the plans
submitted by Withers and Ravenel dated March 28, 2002.
b. The stormwater management practice for Phase 2 shall consist of a constructed wetland. A
final written stormwater management plan shall be approved in writing by this Office before
any permanent building is occupied in Phase 2.
c. The stormwater management practice for Phase 3 shall consist of a constructed dry detention
basin that detains and releases the first inch of rain through the entire 50 foot Neuse buffer. A
final written stormwater management plan shall be approved in writing by this Office before
any permanent building is occupied in Phase 3.
d. The stormwater management practice for Phase 4 shall consist of a constructed dry detention
basin that detains and releases the first inch of rain through the entire 50 foot Neuse buffer
and a constructed wetland. A final written stormwater management plan shall be approved in
writing by this Office before any permanent building is occupied in Phase 4.
e. The stormwater management practice for Phase 5 shall consist of a constructed wetland. A
final written stormwater management plan shall be approved in writing by this Office before
any permanent building is occupied in Phase 5.
f. The stormwater management practice for Phase 6 shall consist of constructed wetlands. A
final written stormwater management plan shall be approved in writing by this Office before
any permanent building is occupied in Phase 6.
The stormwater management plans must include plans and specifications as discussed in the
correspondence dated April 2, 2002 from Withers and Ravenel. Also, before any permanent
building is occupied in each Phase of the subject site, the facilities for that Phase (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.
4. The discharge from basins 3 and 14 shown on the Erosion and Sediment Control Plan must be
redesigned to ensure sheetflow across Zone 1 of the protected stream buffers.
5. Additional written approval is needed for the design of the stream crossings to Turkey Creek and
the unnamed tributary of Turkey Creek. The following issues must be addressed:
a. Cross-sections depicting the width of the culverts to be used.
b. How they will provide for low- flow passage of water and aquatic life (for instance, will they
be placed below the elevation of the streambed?),
c. Will the culverts change the bankfull width of the stream?
d. Will inlet and outlet protection or relocation of the stream be required?
e. How will thev ensure that dis-equilibrium of streambeds or banks, adjacent to or upstream
and down stream of the above structures will not occur?
f. Whether either of these crossing within a FEMA- designated floodwav.
2
6, _ Separate written approval including compensatory mitigation will be required from DWQ, for
stream and buffenimpacts from the construction of Toscana Drive.
7. Upon completion of the project, the applicant shall complete and return the enclosed
"Certification of Completion Form" to notify DWQ that all work included in the 401
Certification has been completed. The responsible party shall complete the attached form and
return it to the 401/ Wetland Unit Division of Water Quality.
We understand that you have chosen to contribute to the Wetland Restoration Program in order to
compensate for these impacts to wetlands and/or streams. In accordance with 15A NCAC 2R.0402, this
contribution will satisfy our compensatory mitigation requirements under 15A NCAC2H.0506 (h).
According to 15a NCAC 2H.0506(h), feet of restoration will be required. Until the Wetland Restoration
Program receives and clears your check (made payable to: DEHNR- Wetland Restoration Program),
wetland or stream fill shall not occur. Mr. Ferrell should be contacted at 919-733-5219 if you have any
questions concerning the Wetland Restoration Program. You have one month from the date of this
Certification to make this payment. For accounting purposes, this Certification authorizes the fill of
810 feet of streams and in river and, sub basin 030402 and of riparian 372 feet of stream
mitigation and 72,048 square feet of buffer mitigation. Please be aware that the Wetland
Restoration Program (`N RP) rules require rounding of acreage amounts to onel quarter acre
increments (15A 2R.0503(b)).
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 PO Box 27447, Raleigh, N.C. 276 1 1-7447. This certification and its
conditions are final and binding unless you ask for a hearing.
This letter completes the review 2of the Division of Water Quality under Section 401 of the Clean
Water Act. If you have any questions, please telephone John Dorney at 919-733-9721 or Steve Mitchell
at our Raleigh Office at 919-571-4700.
Sincerely.
Attachment
cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
File copy
Central Files
Ron Ferrell, WRP
Todd St. John, DWQ
lL
e., ry J. Thorpe
NORTH CAROLINA-DIVISON OF WATER QUALITY
401 WATER QUALITY CERTIFICATION
QUMMARY OF PERMITTED IMPACTS AND MITIGATION EQUIREMENTS
In accordance with 15A NCAC 2 H.0500, Pulte Homes Corporation has permission as outline below
for the purpose(s) of proposed developing the Long Lake Subdivision. All activities associated with
these authorized impacts must be conducted with the conditions listed in the attached certification
transmittal letter. THIS CERTIFICATION IS NOT VALID WITHOUT THE ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENT WETLAND RESTORATION PROGRAM
LOCATION
COUNTY:
BASIN/SUBBASIN
Long Lake Subdivision
Wake Countv
030402
As required by 15A NCAC 2H .0506, and the conditions of this certification, you are required to
compensate for the above impacts through the restoration, creation. enhancement or preservation of
wetlands and surface waters as outlined below prior to conducting any activities that impact or
degrade the waters of the state.
Note: Acreage requirements proposed to be mitigated through the wetland Restoration Programs
must be rounded to one-quarter acre increments according to 15 2R .0503(b)
acres of Class WL wetlands
acres of riparian wetland
acres of non-riparian wetlands
acres of Class S`?L wetlands
372 linear feet of stream
72,048 square feet of stream buffers
One of the options you haNeavailable to satisfy the compensatory mitigation requirements is
through the payment of a fee to the Wetlands Restoration Fund per NCAC 2R .0503. If you choose
this option, please sign this form and mail it to the Wetlands Restoration Fund at the address listed
below. An invoice for the appropriate amount of payment will be sent to you upon receipt of this
form. PLEASE NOTE. THE ABOVE IMPACTS ARE NOT AUTHORIZED UNTIL YOU
RECEIVED NOTIFICATION THAT YOUR PA"i?1ENT HAS BEEN PROCESSED BY THE
WETLANDS RESTORATION PROGRAM.
Sianature Date
WETLANDS RESTORATION PROGRAM
DIVISON OF WATER QUALITY
1619 Mail Service Center
RALEIGH. N.C. 27669-1619
[phone]
4
of W A rFR
? r
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
April 5, 2002
Memorandum To: John Dorney
From: Todd St. John ,r
Subject: Long Lake
Wake County
DWQ# 011549
I have reviewed the request for modification to the 401 WQC and stormwater management
plans for the subject project. The stormwater management plan is more than adequate as the
applicant will be providing treatment before the stormwater enters Long Lake. As such, I recommend
that we approve the plan and requested modifications to the WQC to accommodate phased
construction. Steve and Joe are both satisfied with their proposal.
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/
O?O? WA
T FRpG
7
fl T
Michael F. Easley
Governor
William Ross, Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe. PhD.
Acting Director
Division of Water Quality
December21, 2001
Wake County
DWQ Project # 01-1549
APPROVAL of 401 Water Quality Certification and Additional Conditions, WRP, Neuse River Buffer Rules
Pulte Homes Corp.
C/o Gray Methven
Director of Land
401 Harrison Oaks Blvd
Ste. 250
Cary, NC 27513
Dear Mr. Methuen:
You have our approval, in accordance with the attached conditions and those listed below, to place fM
rra, tedal in 810 feet of streams buffers for the purpose of developing the Long Lake Subdivision in Wake County, as
described in your application received by the Division of Water Quality on October 22, 2001. After reviewing your
i;ppfication, we have derided that this fill is covered by General Water Quality Certification Number 3289, which can
be viewed on our website at httnl/h2o.enr.state.nc.us/ncwetlands. This certification allows you to use Nationwide
Permit Number 14 when the Corps of Engineers issues it. This certification allows you to use the Neuse River Buffer
Riles (15A NCAC 2B.0233). In addition, you should get any other federal, state or local permits before you go ahead
%! h your project including (not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and
Water Supply Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit
expires unless otherwise specified in the General Certification
This approval is oriy valid for the purpose and design that you described in your application except as modified
bebw. 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 this Certification and
approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now
or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h).
Fbr this approval to be valid, you must follow the conditions listed in the attached certification and any additional
colndrtions listed below.
1. Deed notifications or similar mechanisms shall be placed on all lots within remaining jurisdictional
wetlands and waters or areas within 50 feet of all streams and ponds to notify the state in order to
assure compliance for future wetland and/or water impact. These mechanisms shall be put in place
30 days of the date of this fetter of the issuance of the 404 Permit (whichever is later).
2- An additional condition is that stormwater shall be directed to sheettlow at non- erosive velocities
through the protected stream buffers.
AM
NZ-DENR
Division of Water Quality 1621 Mail Service Center Raleigh, NC 27699-1621
Wedands/401 Unit: (919) e733-1786
Fax: [phone]
o`'o? wArFROG
Michael F. Easley
Governor
r William Ross, Secretary
> Department of Environment and Natural Resources
Gregory J. Thorpe. PhD.
Acting Director
Division of Water Quality
December21, 2001
Wake County
DWQ Project # 01-1549
3. 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. The stormwater
management plan must include )ins and specifications for an extended detention wetland designed
to move 85% TSS according to the most recent NC DENR Stormwater Best Management
Practices Manual. Also, before any pemienent building is occupied at the subject site, the facilities,
as approved by this office, shall be constructed and operational, and the stormwater plan, as
approved by this office, shat be implemented.
4. The discharge from bins 3 and 14 shon on the Erosion and Sediment Control Plan must be
redesioned to ensure sheetfloras moss Zone 1 of the protected stream buffers.
5. 1".dditionai viritten apprard is ;L--Jed for the design of the stream crossings to Turkey Creek and the
unnarred tributany of Turkey Creel The ,o3owing issues must be addressed:
Cross-sectia-ar de^,,ociinn tie width of the culverts to be used.
h -ew they w 1l _aovidr is kcrfv- now passage of water and aquatic fife (will they be placed
to ow the e?e•.sfion a tte streag-bed),
c. '11ilil the cuter citage fhE bar" width of the stream,
d. V{U inlet and outlet D-DB!mon cc rebmtion of the stream be required,
e. Hcw will they ensure tut diis-equiiiNium of stream beds or banks, adjacent to or upstream
and down saarn of1ne above structures wi not occur, and
f. Mfhether a of tles-e- ausskV vrdhin a FEMA- designated floodway
Sept mitten approval krladiag cwipemt tay mitigation will be required from DWQ for stream
End W5z- impacts frcn, the co-i s uc ionicifToscana Drive.
7. Upon cccr iebon of the prg*--, t`e appka-I sIU- complete and return the enclosed "Certification of
Ccrn*tion Form' to notify DWQ tieta'I work arxduded in the 401 Certification has been completed. The
respcr&Ne per-ty shall cxrnpllete to alxhed form and return it to the 401/ Wetland Unit Division of Water
may. -
We urd--,and W you have din lo =&bute ffl 2* Wetland Restoration Program in order to compensate
for these it ads to weSa& and/or saearrm lb a=xdance with 15A NCAC 2R.0402, fifes contribution will satisfy
our compe y mitigaFicn requiren?Ns urtdpr 15A NCAC2H.0506 (h). Accordng to 15a NCAC 2H.0506(h), feet of
restoration writ be rem . Until the real §@M Fl o- 'oar Program receives and dears your check (made payable to:
DEHNR- YlleMand Resr3oration Program), wedaW or stream fly shat not occur. Fk. Ferrel should be contacted at 919-
733-52191 yw live any questions corcerr&g ft WeftW Restoration Program. You have one month from the
date of this Cz on to make this paymeslt. For accounting purposes, this Certification authorizes the fill of
810 feet of streams and in river, sub basin and of riparian 372 feet of stream mitigation and 72,048 square
feet of buffer mitigation- Please be aware f mdthe Wedand Restoration Program (WRP) rules require
rounding of acreage amounts to onel quarter acre hxxements (15A 21L0503(b)).
gnm
Dives. ct Warer LrtnGty 1621 Mal Service Center Raleigh, NC"27699-1621
Wetlancsl:.' Ur.rc (919`: 7v 1786
Fs;u 1919, '7? 9959
O?o? W A T FgQG
o -c
Michael F. Easley
Governor
William Ross, Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe. PhD.
Acting Director
Division of Water Quality
December21, 2001
Wake County
DWQ Project # 01-1549
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 PO Box
27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final and binding unless you ask fora
hearing.
This letter completes the review 2of the Division of Water Quality under Section 401 of the Clean Water Act. If
you have any questions, please telephone John Dorney at 919-733-9721 or Tom Stevens at our Washington Office
at 252-946-6481.
Sincerely,
Steven
Attachment
cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office
File copy
Central Files
Ron Ferrell, WRP
Todd St. John, DWQ
Nelson Paul
0-4
NCDEN-R
Division of Water Quality 1621 Mail Service Center Raleigh, NC 27599-1621
Wetlands/401 Unit: [phone]
Fax: [phone]
Y
WITHERS LNG; RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
April 2, 2002
Mr. Todd St. John, PE
Environmental Engineer
North Carolina Department of Environment and Natural Resources
Division of Water Quality
232-1 Crabtree Boulevard
Raleigh, North Carolina 27604-226o
RE: Additional Information for Stormwater Management Plan
Long Lake Subdivision
DWQ Project Number 011549
WR Project Number 201113.0
Mr. St. John:
W
APR 3 2002
e
WETLANDS GROUP
WATER QUALITY SECTION
The additional information for the Stormwater Management Plan submitted to your office on April -1,
2002, is summarized below. As we discussed, we are proposing a phased approach for the design
and construction of the Best Management Practices (BMP) for the remaining tracts within this
subdivision. Currently, six phases are being proposed for the site development. The plans,
Operation and Maintenance Manual, and supporting calculations were previously submitted and
pertain to Phase -1. We also propose to construct each BMP such that they become operational prior
to the issuance of certificate of occupancy for any structure within that phase.
The summary below will present each proposed BMP and assumptions used to determine the most
feasible approach to satisfy the conditions of the permit. Our assumptions are based on the
proposed layouts for each tract; however, they may change depending on subsequent reviews and
changes. For each proposed BMP, the proposed drainage area and impervious surface area, surface
area requirements, and other pertinent data will be presented to provide the conceptual design to
achieve diffuse flow or alternative means of compliance. This preliminary design and grading for
each BMP is shown on ShCCt 2 Of the previously submitted plans.
Phase -1
The BMPs of this phase were submitted on April 1, 2002, for review. The proposed BMPs include a
level spreader for Country Trail with a constructed wetlands and dry detention for Tract 1. The
stormwater from another outlet and Tract 5 discharge into the unbuffered wetlands.
Phase 2
Phase 2 is associated with a portion of Tract 2. The proposed drainage area is approximately 6.64
acres and 53% impervious. The proposed BMP is a constructed wetland due to its location within
the Neuse River Buffer (NRB). Using a SA/SD=2.16%, the required surface area is 6,250 square feet.
The wetland will be designed to capture the runoff of the first inch of precipitation that equates to
iii MacKenan Drive i Cary, North Carolina 27511 1 tel: [phone] t fax: 919.46/.6oo8 i www.withersravenel.com
Mr. Todd St. John, PE
April 2, 2002
Page 2
12,700 cubic feet. The detained stormwater will be released through the buffer over 48 hours with
greater storm events passing through the wetlands to the stream.
Phase 3
Phase 3 will be a proposed dry detention basin for the stormwater from the portion of Tract 1 not
included in Phase 1. The drainage area of Phase 3 is approximately 9.8 acres and 38% impervious.
Approximately 14,000 cubic feet resulting from the runoff of the first inch of precipitation and will be
detained. The stored water will be released over 48 hours through the buffer with greater storm
events passing through the dry detention basin to the lake. The dry detention pond will be located
outside of the NRB.
Phase 4
Phase 4 includes the remaining portion of Tract 2 and all of Tract 4. Since these two Tracts are not
connected, a BMP will be constructed at each Tract. Tract 2 will require a dry detention basin to
capture the approximately 6,300 cubic feet of stormwater from the 2.8-acre tract. The estimated
impervious surface area is 64%. The stored waterwill be released over 48 hours through the buffer
with greater storm events passing through the dry detention basin to the lake. The dry detention
pond will be located outside of the NRB.
Tract is approximately 6.2 acres and 61% impervious. Due to its location, the proposed BMP will be
a constructed wetland. Using a SQ/SD = 2.46%, the required surface area is approximately 6,630
square feet. The wetland will be designed to capture the runoff of the first inch of precipitation,
which is approximately 13,400 cubic feet. The maximum water column on the wetlands will be 24
inches. The stored water will be released over 48 hours through the buffer with greater storm events
passing through the constructed wetlands to the lake.
Phase 5
The proposed BMP for Phase 5 is a constructed wetland for the stormwater of Tract 3. The drainage
area is approximately 7.2 acres and 63% impervious. Using a SA/SD = 2.54%, the required surface
area is estimated to be approximately 7,950 square feet. The total runoff from the first inch of
precipitation is estimated to be 16,200 cubic feet, which will be detained and released over 48
hours. The stormwater from events greater than one-inch, the flow will pass through the wetlands
and discharged into the lake.
Phase 6
A series of constructed wetlands are proposed for Phase 6, which will treat the stormwater from
Tract 6. The drainage area for Tract 6 is approximately 9.7 acres with an estimated impervious
surface of 63%. Due to space limitations, we are currently proposed to divide the Tract into 3 equal
sections to treat and store the runoff. The design of the wetlands are based on a SA/SD = 2.54%
that requires a minimum surface area of approximately 3,60o square feet. The storage required for
each wetland will be approximately 7,300 cubic feet with the maximum water depth on the wetland
being 2 feet. The stored stormwater will be released over 48 hours. The stormwater from events
greater than one-inch, the flow will pass through the wetlands and discharged into the stream.
Please note that the construction sequence may not necessarily follow the order of the Phases as
listed. Our goal is to submit as many Phases simultaneously as possible to minimize the review
K: \01\01.110\01113\0402 0 2 .ts t. d o c
Mr. Todd St. John, PE
April 2, 2002
Page 3
process. We hope that you find this information sufficient to complete your review and approval of
the Stormwater Management Plan. Please advise should you have any questions or comments.
Sincerely,
& RAVEMELANC.
PE
cc: Jeff Rolan - Pulte Home Corporation
K:\o 2\02-220\02123\0402 o2.tst. d oc
WITHERS Lh? RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
March 28, 2002
Mr. Todd St. John, PE
Environmental Engineer
North Carolina Department of Environment and Natural Resources
Division of Water Quality
2321 Crabtree Boulevard
Raleigh, North Carolina 27604-226o
RE: Long Lake Subdivision
DWQ Project Number 011549
WR Project Number 201113.0
Mr. St. John:
APR 2002
WETl.fI" GROUu
T:-
r OLI,?
IT
Please find attached two copies of the plans, specifications, calculations, and Operation and
Maintenance Manual for the proposed Stormwater Management Plan to satisfy Condition #1 of the
401 Water Quality Certification Permit issued to this project. Please note that we are proposing a
phased approach, due to the size of the proposed subdivision, with 6 different phases to coincide
with the proposed development schedule. Therefore, we request that the issued permit be revised
to allow for the phase approach with the proposed best management practice approval and
installation prior to the issuance of the any certificate of occupancy for that phase. Our intentions
are to submit as many of the phases simultaneously to provide as few reviews as possible.
We trust the attached plans will be sufficient to complete the review and approval of the Stormwater
Management Plan provided for this site. Please advise should you have any questions or
comments.
Sincerely,
Attachments
ill MacKenan Drive i Cary, North Carolina 27511 i tel: [phone] fax: [phone]oo8 i www.withersravenel.corn
WITHERS & RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
111 MacKenan Drive
CARY, NORTH CAROLINA, 27511
[phone]
FAX [phone]oo8
To: Division of Water Quality
2321 Crabtree Boulevard
Raleigh, NC 276o4
DATE A ril 1, 2002 JOB NO. 201113.0
ATTENTION Todd St. John
PHONE # [phone]
RE: Lon Lake Subdivision
DWQ #11 549

APR 1 2002
WE ARE SENDING YOU ® Attached ? Under separate cover via thi7 t
? Shop Drawings ? Prints ® Plans ? Samples ? Specifications
? Copy of Letter ? Change order ? Diskette ?
COPIES DATE NO. DESCRIPTION
1 3/30/02 Storm Water Management Plan
THESE ARE TRANSMITTED as checked below:
® For approval ? Approved as submitted
? For your use ? Approved as noted
? As requested ? Returned for corrections
? For review and comment ?
? FOR BIDS DUE 20 ? PRINTS RETURNED AFTER LOAN TO US
REMARKS:
COPYTO: File SIGNED: Ken Jesneck, PE
? Resubmit
? Submit
? Return
copies for approval
copies for distribution
corrected prints
If enclosures are not as noted, kindly notify us at once.
/ LONG LAKE SUBDIVISION
TRACT 1 POND A (FES #31) EXTENDED DETENTION WETLAND BASIN
OPERATION AND MAINTENANCE AGREEMENT
The wetland detention basin system is defined as the wetland detention basin, pretreatment including forebays
and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
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 on the skimmer 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 what is shown in the 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.
When the permanent pool depth reads 0.5 feet in the main pond, the sediment shall be removed.
If the elevation of the marsh areas exceeds 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 0.5 feet in the forebay and micro-pool, the sediment shall be
removed.
EXTENDED WETLAND DIAGRAM
Permanent Pool Elevation 373 ft
Sediment emoval El. 372.5Jft
------------?- I- ------Sediment Removal Elevation 3725 ftft _
Bottom Elevation
FOREBAY & MICRO-POOL MAIN POND
Page 1 of 2
LONG LAKE SUBDIVISION
TRACT 1 POND A (FES #31) EXTENDED DETENTION WETLAND BASIN
OPERATION AND MAINTENANCE AGREEMENT
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 eight
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: L?yJREN« F. L I (fFfitlec>- T
Title: AlTc-, J G-Y -- i nl - r&e-r
Address: 401 14^ag-? -sue e-: K 60uu. J?1A12k1 2u +-rti 2 5 2
Phone
Signatt
Date: 4 • I Z
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
1, -Zc C4, /0 v 1" , a Notary Public for the State of A10 4h C,,, / l n r ,
County of do hereby certify that l6wr«,cr C _ L :ogod
1 01
personally appeared before me this day of , -)eo j , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
?O
;'?`````?OEN CQ`
NOTA qy
? '°UBLIC
CD U N•5%\--
SEAL
My commission expires .0 --.2 ") - ° V
"I ? 4?41 Page 2 of 2
r
' Long Lake Subdivision
Tract I Pond A PondPack Output Report
?I
Job File: K:\01\01-110\01113\H&H\SWIIMP\PPW_WETLANDS\FES#31 EXTENDED WETLAND.PPW
Rain Dir: I:\ENGFILE\HAESTAD\PPW iIAINFALL DATA\WAKE CO\
JOB TITLE
Long Lake Subdivision
Tract 1 Pond A Design (FES #31)
Raleigh, NC
W&R Project #201113.2
The Modified Rational Method was used to determine Qpeaks for the drainage area due to
its small size. The rainfall datalwas taken from the Intensity-Duration-Frequency Table
for the Raleigh area published in the City of Raleigh Stormwater Management Design
Manual.
The proposed extended dry detentionipond is designed to achieve diffuse flow through the
Neuse Riparian Buffer for the runoff from the first 1-inch of rainfall. The pond is
designed with two separate outlet structures to achieve the minimum drain down time for
the runoff from the first 1" of rainfall. First, there is a standard riser and barrel
structure as the primary outlet for the pond. The second part of the outlet structure is
a floating skimmer device that dewatters the required storage volume in 48 to 72 hours.
Tract 1 Pond A Highlights:
Normal Pool Elevation = 373'
Top of Dam = 377'
Required surface area = 0.343 ac
Surface area provided = 0.36 ac
Required storage volume = 0.687 ac-ft:
Storage volume provided = 0.754 ac-ft
Calculated Freeboard for 10-yr design storm = 1.05 ft
Calculated Freeboard for 100-yr design storm = 0.20 ft
Outlet Structure:
¦ 36" diameter RCP riser structure with crest at 375'
¦ 24" RCP Barrel with inverts at 371.5' and 371' (40 ft length)
¦ Floating Skimmer device with constant Q = 0.14 cfs for draw-down
Il?i
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A 'FES#31) Report.doc
r
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Table of Contents
****t*****r**trr*t**** MASTER SUMMARY t*********************
Watershed....... Mod. Rational Grand Summary ........ 1.01
Master Network Summary ............. 1.02
********************** RAINFALL DATA ***********************
1-yr IDF Table ...................................... 2.01
2-yr IDF Table ...................................... 2.01
10-yr IDF Table ..................................... 2.02
100-yr IDF Table .................................... 2.02
********************** TC CALCULATIONS *********************
FES#31 AREA..... Tc Calcs ........................... 3.01
****r*rr************r** POND VOLUMES *************rr*r******
EW FES#31....... Vol: Elev-Area ..................... 4.01
******************** OUTLET STRUCTURES *********************
OUTLET EW 2..... Outlet Input Data .................. 5.01
Composite Rating Curve ............. 5.04
*********************** POND ROUTING ***********************
EW FES#31....... Pond E-V-Q Table ................... 6.01
****************** RATIONAL METHOD CALCS *******************
FES#31 AREA..... C and Area ......................... 7.01
FES#31 AREA..... 1-yr Mod. Rational Storm Calcs ..... 7.02
FES#31 AREA..... 2-yr Mod. Rational Storm Calcs ..... 7.03
FES#31 AREA..... 10-yr Mod. Rational Storm Calcs .... 7.04
FES#31 AREA..... 100-yr Mod. Rational Storm Calcs ... 7.05
FES#31 AREA..... Rational Peak Q's ................... 7.06
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Mod. Rational Grand Summary Page 1.01
Name.... Watershed
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
************************************************************************
************************************************************************
* *
* *
* MODIFIED RATIONAL METHOD
* ---- Grand Summary For All Storm Frequencies ----
* *
* *
************************************************************************
************************************************************************
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)

.......
......... Area =
......... 18.050 acres
............
...... Tc
............... = .0833
....... hrs
...........
....... ......... ......... ............ ...... ............... ..................
VOLUMES
Freq. Adjusted Duration I Qpeak Allowable Inflow Storage
years
------- 'Cl
--------- hrs
--------- in/hr
------------ cfs
------- cfs
---------- --- ac-ft
-- ac-ft
----------
1 .550 .4000 2.5289 25.31 21.00 I .837 .417
2 .550 .4000 3.1611 31.64 27.00 I 1.046 .507
10 .550 .4167 4.1659 41.70 37.00 I 1.436 .672
100 .550 .6000 4.8010 48.06 40.00 2.383 1.254
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Master Network Summary Page 1.02
Name.... Watershed
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
MASTER DESIGN STORM SUMMARY
Default Network Design Storm File, ID RAL_IDF.IDQ Raleigh IDF
Return Event
------------
1-yr
2-yr
10-yr
100-yr
Rainfall
Type
---------------
I-D-F Table
I-D-F Table
I-D-F Table
I-D-F Table
IDF File IDF ID
RAL_ IDF 1-yr IDF Table
RAL_ IDF 2-yr IDF Table
RAL_ IDF 10-yr IDF Table
RAL_ IDF 100-yr IDF Table
MASTER NETWORK SUMMARY
Modified Rational Method Network
(*Node=Outfall; +Node=Diversion;)
(Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt)
Return HYG Vol
Node ID
-------------
---- Type
---- Event
------ ac-ft Trun
---------- --
EW FES#31 IN POND 1 .836
EW FES#31 IN POND 2 1.045
EW FES#31 IN POND 10 1.435
EW FES#31 IN POND 100 2.381
EW FES#31 OUT POND 1 .297
EW FES#31 OUT POND 2 .502
EW FES#31 OUT POND 10 .890
EW FES#31 OUT POND 100 1.832
FES#31 AREA AREA 1 .836
FES431 AREA AREA 2 1.046
FES#31 AREA AREA 10 1.436
FES#31 AREA AREA 100 2.382
*LONG LAKE JCT 1 .297
*LONG LAKE JCT 2 .502
*LONG LAKE JCT 10 .890
*LONG LAKE JCT 100 1.832
Max
Qpeak Qpeak Max WSEL Pond Storage
hrs
--------- cfs
-------- ft
-------- ac-ft
------------
.0900 25.31
.0900 31.64
.0900 41.70
.0900 48.06
.4700 2.52 375.16 1.174
.4500 10.98 375.51 1.318
.4500 26.48 375.95 1.502
.6300 31.51 376.80 1.871
.0833 25.31
.0833 31.64
.0833 41.70
.0833 48.06
.4700 2.52
.4500 10.98
.4500 26.48
.6300 31.51
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... I-D-F Table Page 2.01
Name.... 1-yr IDF Table Tag: 1-yr Event: 1 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 1-yr Design Storm (80% of 2-yr)
Storm... 1-yr IDF Table Tag: 1-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833
.1670
.2500
.3330
.5000
.6670
.8330
1.0000
1.5000
2.0000
3.0000
6.0000
12.0000
24.0000
4.6080
3.8080
3.2320
2.7760
2.1600
1.8240
1.5520
1.3600
.9760
.7600
.5680
.3520
.2080
.1200
Type.... I-D-F Table
Name.... 2-yr IDF Table Tag: 2-yr Event: 2 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 2-yr Storm from City of Raleigh IDF Table
Storm... 2-yr IDF Table Tag: 2 -yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833 5.7600
.1670 4.7600
.2500 4.0400
.3330 3.4700
.5000 2.7000
.6670 2.2800
.8330 1.9400
1.0000 1.7000
1.5000 1.2200
2.0000 .9500
3.0000 .7100
6.0000 .4400
12.0000 .2600
24.0000 .1500
K:\01\01-110\01113\H&H\SWMP\Pond ReportsMact 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... I-D-F Table Page 2.02
Name.... 10-yr IDF Table Tag: 10-yr Event: 10 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 10-yr Event Table from City of Raleigh IDF Table
Storm... 10-yr IDF Table Tag: 10-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833
.1670
.2500
.3300
.5000
.6670
.8330
1.0000
1.5000
2.0000
3.0000
6.0000
12.0000
24.0000
7.5000
6.1300
5.2500
4.6400
3.7100
3.1500
2.7100
2.4100
1.7400
1.3700
1.0200
.6500
.3900
.2200
Type.... I-D-F Table
Name.... 100-yr IDF Table Tag: 100-yr Event: 100 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 100-yr Event from City of Raleigh IDF Table
Storm... 100-yr IDF Table Tag: 100-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833 9.7200
.1670 8.4000
.2500 7.2400
.3330 6.4700
.5000 5.2800
.6670 4.4800
.8330 3.8800
1.0000 3.5000
1.5000 2.5300
2.0000 2.0000
3.0000 1.5000
6.0000 .9600
12.0000 .5700
24.0000 .3300
K:\01\01-110\01113\H&H\SWMP\Pond ReportsMact 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Tc Calcs
Name.... FES#31 AREA
Page 3.01
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
........................................................................
........................................................................
TIME OF CONCENTRATION CALCULATOR
........................................................................
........................................................................
Segment #1: Tc: User Defined
Description: Tc = 5 minutes
Segment #1 Time: .0833 hrs
------------------------------------------------------------------------
-------------------------
-------------------------
Total Tc: .0833 hrs
Calculated Tc < Min.Tc:
Use Minimum Tc...
Use Tc = .0833 hrs
-------------------------
-------------------------
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Vol: Elev-Area Page 4.01
Name.... EW FES#31
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
Elevation Planimeter Area A1+A2+sgr(A1*A2) Volume Volume Sum
(ft)
----------- (sq.in) (acres)
---------------------- (acres)
----------------- (ac-ft)
--------- (ac-ft)
-------------
372.00 ----- .3474 .0000 .000 .000
373.00 ----- .3607 1.0620 .354 .354
374.00 ----- .3740 1.1020 .367 .721
375.00 ----- .4003 1.1612 .387 1.108
376.00 ----- .4272 1.2410 .414 1.522
377.00 ----- .4546 1.3225 .441 1.963
POND VOLUME EQUATIONS
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-ELI) * (Areal + Area2 + sq.rt.(Areal*Area2))
where: EL1, EL2 = Lower and upper elevations of the increment
Areal,Area2 = Areas computed for EL1, EL2, respectively
Volume = Incremental volume between ELl and EL2
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Outlet Input Data Page 5.01
Name.... OUTLET EW 2
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
REQUESTED POND WS ELEVATIONS:
Min. Elev.= 372.00 ft
Increment = .25 ft
Max. Elev.= 377.00 ft
**********************************************
OUTLET CONNECTIVITY
**********************************************
---> Forward Flow Only (Upstream to DnStream)
<--- Reverse Flow Only (DnStream to UpStream)
< --- > Forward and Reverse Both Allowed
Structure No. Outfall E1, ft E2, ft
User Defined Table SK ---> TW .000 377.000
Stand Pipe RI ---> CV 375.000 377.000
Culvert-Circular CV ---> TW 371.500 377.000
TW SETUP, DS Channel
K:\01\01-1 10\01 1 13\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Outlet Input Data Page 5.02
Name.... OUTLET EW 2
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
OUTLET STRUCTURE INPUT DATA
Structure ID = SK
Structure Type = User Defined Table
------------------------------------
ELEV-FLOW RATING TABLE
Elev, ft Flow, cfs
372.00 .00
372.99 .00
373.00 .14
377.00 .14
Structure ID = RI
Structure Type = Stand Pipe
-----------------
# of openings -------------
= 1 ------
Invert Elev. = 375.00 ft
Diameter = 3.0000 ft
orifice Area = 7.0686 sq.ft
Orifice Coeff. _ .600
Weir Length = 9.42 ft
Weir Coeff. = 3.100
K, Submerged = .000
K, Reverse = 1.000
Kb,Barrel = .000000 (per ft of full flow)
Barrel Length = .00 ft
Mannings n = .0000
K:\01\01-110\01113\H&H\SWMP\Pond ReportsMact 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Outlet Input Data Page 5.03
Name.... OUTLET EW 2
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
OUTLET STRUCTURE INPUT DATA
Structure ID = CV
Structure Type
------------------ = Culvert-Circular
------------------
No. Barrels = 1
Barrel Diameter = 2.0000 ft
Upstream Invert = 371.50 ft
Dnstream Invert = 371.00 ft
Horiz. Length = 40.00 ft
Barrel Length = 40.00 ft
Barrel Slope = .01250 ft/ft
OUTLET CONTROL DATA...
Mannings n = .0130
Ke = .5000
Kb = .012411
Kr = .5000
HW Convergence = .001
INLET CONTROL DATA...
Equation form = 1
Inlet Control K = .0098
Inlet Control M = 2.0000
Inlet Control c = .03980
Inlet Control Y = .6700
T1 ratio (HW/D) = 1.154
T2 ratio (HW/D) = 1.301
Slope Factor = -.500
(forward entrance loss)
(per ft of full flow)
(reverse entrance loss)
+/- ft
Use unsubmerged inlet control Form 1 equ. below T1 elev.
Use submerged inlet control Form 1 equ. above T2 elev.
In transition zone between unsubmerged and submerged inlet control,
interpolate between flows at T1 & T2...
At T3. Elev = 373.81 ft ---> Flow = 15.55 cfs
At T2 Elev = 374.10 ft ---> Flow = 17.77 cfs
Structure ID = TW
Structure Type = TW SETUP, DS Channel
------------------------------------
FREE OUTFALL CONDITIONS SPECIFIED
CONVERGENCE TOLERANCES ...
Maximum Iterations= 30
Min. TW tolerance = .01 ft
Max. TW tolerance = .01 ft
Min. HW tolerance = .01 ft
Max. HW tolerance = .01 ft
Min. Q tolerance = .10 cfs
Max. Q tolerance = .10 cfs
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Composite Rating Curve Page 5.04
Name.... OUTLET EW 2
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
***** COMPOSITE OUTFLOW SUMMARY ****
WS Elev, Total Q Notes
-------- -------- ------ -- Converge --------------------
Elev. Q TW El ev Error
ft cfs ft +/-ft Contributing Structures
--------
372.00 -------
.00 ------
Free -- ----- -
Outfall -------------------------
(no Q: SK,RI,CV)
372.25 .00 Free Outfall (no Q: SK,RI,CV)
372.50 .00 Free Outfall (no Q: SK,RI,CV)
372.75 .00 Free Outfall (no Q: SK,RI,CV)
373.00 .14 Free Outfall SK (no Q: RI,CV)
373.25 .14 Free Outfall SK (no Q: RI,CV)
373.50 .14 Free Outfall SK (no Q: RI,CV)
373.75 .14 Free Outfall SK (no Q: RI,CV)
374.00 .14 Free Outfall SK (no Q: RI,CV)
374.25 .14 Free Outfall SK (no Q: RI,CV)
374.50 .14 Free Outfall SK (no Q: RI,CV)
374.75 .14 Free Outfall SK (no Q: RI,CV)
375.00 .14 Free Outfall SK (no Q: RI,CV)
375.25 3.79 Free Outfall SK,RI,CV
375.50 10.47 Free Outfall SK,RI,CV
375.75 19.12 Free Outfall SK,RI,CV
376.00 28.19 Free Outfall SK,RI,CV
376.25 29.27 Free Outfall SK,RI,CV
376.50 30.32 Free Outfall SK,RI,CV
376.75 31.33 Free Outfall SK,RI,CV
377.00 32.31 Free Outfall SK,RI,CV
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Pond E-V-Q Table Page 6.01
Name.... EW FES#31
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
LEVEL POOL ROUTING DATA
HYG Dir = K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\
Inflow HYG file = NONE STORED - EW FES#31 IN 1-yr
Outflow HYG file = NONE STORED - EW FES#31 OUT 1-yr
Pond Node Data = EW FES#31
Pond Volume Data = EW FES#31
Pond Outlet Data = OUTLET EW 2
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 373.00 ft
Starting Volume = .354 ac- ft
Starting Outflow = .14 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .14 cfs
Time Increment = .0100 hrs
Elevation Outflow Storage Area Infilt. Q Total 2S/t + O
ft cfs
- ac-ft
-
- acres
-------- cfs
----------- cfs
-
-
-
- cfs
-
----
------------
372.00 -----
------
.00 ---------
.000 -
- .3474 .00 -
-
-----
-
.00 ---
--
.00
372.25 .00 .087 .3507 .00 .00 211.15
372.50 .00 .175 .3540 .00 .00 424.32
372.75 .00 .264 .3573 .00 .00 639.50
373.00 .14 .354 .3607 .00 .14 856.84
373.25 .14 .445 .3640 .00 .14 1076.06
373.50 .14 .536 .3673 .00 .14 1297.29
373.75 .14 .628 .3707 .00 .14 1520.52
374.00 .14 .721 .3740 .00 .14 1745.78
374.25 .14 .816 .3805 .00 .14 1974.01
374.50 .14 .912 .3870 .00 .14 2206.19
374.75 .14 1.009 .3936 .00 .14 2442.34
375.00 .14 1.108 .4003 .00 .14 2682.50
375.25 3.79 1.209 .4069 .00 3.79 2930.34
375.50 10.47 1.312 .4136 .00 10.47 3185.25
375.75 19.12 1.416 .4204 .00 19.12 3446.19
376.00 28.19 1.522 .4272 .00 28.19 3711.65
376.25 29.27 1.630 .4340 .00 29.27 3973.24
376.50 30.32 1.739 .4408 .00 30.32 4238.90
376.75 31.33 1.850 .4477 .00 31.33 4508.66
377.00 32.31 1.963 .4546 .00 32.31 4782.58
K:\01\01-110\01113\H&H\SWMP\Pond ReportsMact 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... C and Area Page 7.01
Name.... FES#31 AREA
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#31 EXTENDED WETLAND.PPW
RATIONAL C COEFFICIENT DATA
.........................................................................
.........................................................................
Area C x Area
Soil/Surface Description C acres acres
-------------------------------- -------- ---------- ----------
Impervious Area .9500 8.160 7.752
Pervious Area - Lawn .2200 9.890 2.176
WEIGHTED C & TOTAL AREA ---> .5500 18.050 9.928
.........................................................................
.........................................................................
K:\01\01-110\01113\H&H\SWMP\Pond ReportsMact 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.02
Name.... FES#31 AREA Tag: 1-yr Event: 1 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#31 EXTENDED WETLAND.PPW
Storm... 1-yr IDF Table Tag: 1-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN FREQUENCY:
----------------- 1 yr 'C'
---------- Adjustment
----------- = 1.000Allowable
------------------- Q = 21.00
---------- cfs
---------
Hydrograph Storm Duration, Td = .4000 hrs Tc = .0833 hrs
Hydrograph File:
................. 1-yr
..........
...........
.......
............
.........
..........
................. .......... ........... ....... ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'C' 'C' hrs in/hr acres cfs ac-ft ac-ft
-----------------
.550 .550 ----------
.0833 -----------
4.6080 -------
18.050 --------- --
46.13 I ----------
.318 ---------
.173
.550 .550 .1667 3.8112 18.050 38.15 ( .525 .309
.550 .550 .2500 3.2320 18.050 32.35 I .668 .379
.550 .550 .3333 2.7748 18.050 27.78 .765 .404
************************************************************ Storage Maximum
.550 .550 .4000 2.5289 18.050 25.31 .837 .417
****************************************************************************
.550 .550 .5000 2.1600 18.050 21.62 .893 .387
.550 .550 .6667 1.8247 18.050 18.27 1 Qpeak < Qallow
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc

Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.03
Name.... FES#31 AREA Tag: 2-yr Event: 2 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#31 EXTENDED WETLAND.PPW
Storm... 2-yr IDF Table Tag: 2-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN FREQUENCY:
----------------- 2 yr 'C'
---------- Adjustment
----------- = 1.000Allowable
------------------- Q = 27.00
---------- cfs
---------
Hydrograph Storm Duration, Td = .4000 hrs Tc = .0833 hrs
Hydrograph File:
................. 2-yr
..........
...........
.......
............
..........
.........
................. .......... ........... ....... ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'C' 'C' hrs in/hr acres cfs ac-ft ac-ft
--
--
-----------------
.550 .550 ----------
.0833 -----------
5.7600 -------
18.050 --------- --
57.66 ----------
.397 ----
-
.212
.550 .550 .1667 4.7640 18.050 47.69 I .657 .378
.550 .550 .2500 4.0400 18.050 40.44 I .836 .464
.550 .550 .3333 3.4685 18.050 34.72 I .956 .492
************************************************************ Storage Maximum
.550 .550 .4000 3.1611 18.050 31.64 I 1.046 .507
****************************************************************************
550 .550 .5000 2.7000 18.050 27.03 I 1.117 .466
550 .550 .6667 2.2808 18.050 22.83 Qpeak < Qallow
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
r
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.04
Name.... FES#31 AREA Tag: 10-yr Event: 10 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#31 EXTENDED WETLAND.PPW
Storm... 10-yr IDF Table Tag: 10-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN
------ FREQUENCY:
----------- 10 yr 'C' Adjustment = 1.000Allowable
---------------------------------------- Q = 37.00
---------- cfs
---------
Hydrograph Storm Duration, Td = .4167 hrs Tc = .0833 hrs
Hydrograph File:
................. 10-yr
.........
...........
........
............
..........
.........
...... ........... ......... ........... ........ ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
-C' Oct hrs in/hr acres cfs ac-ft ac-ft
------
.550 -----------
.550 ---------
.0833 -----------
7.5000 --------
18.050 --------- --
75.08 I ----------
.517 ---------
.268
.550 .550 .1667 6.1355 18.050 61.42 I .846 .464
.550 .550 .2500 5.2500 18.050 52.55 I 1.086 .576
.550 .550 .3333 4.6218 18.050 46.26 1.275 .638
************************************************************ Storage Maximum
.550 .550 .4167 4.1659 18.050 41.70 I 1.436 .672
****************************************************************************
550 .550 .5000 3.7100 18.050 37.14 1.535 .643
550 .550 .6667 3.1511 18.050 31.54 Qpeak < Qallow
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
Long Lake Subdivision
Tract 1 Pond A PondPack Output Report
Volume vs. Time
Minimum Drain Time for Tract 1 Pond A Wetlands w/ Skimmer
U
f0
a?
E
0
Time (hrs)
Plotted Curves
MDRAIN OUT
K:\01\01-110\01113\H&H\SWMP\Pond Reports\Tract 1 Pond A (FES#31) Report.doc
0 10 20 30 40 50 60 70 80 90
Protect Name: Long Lake Subdivision Project #: 201113.2
City/State: Raleigh, NC Date: 13-Mar-02
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Effciencv in the Piedmont
% Impervious
Cover Permanent Pool Depth (feet)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NCDENR/DWQ Stormwater Best Management Practices, pg. 5, April 1999
TRACT 1 POND A (FES #31)
Rational
C Fraction
IA Total
Area (ac) Pervious
(ac) Impervious
(ac)
Pervious Area 0.22 0 9.89 9.89 0
Impervious 0.95 1.00 8.16 0 8.16
Totals 18.05 9.89 8.16
% Impervious Surface Area = 45%
Surface Area of Permanent Pool:
Assumed depth = 3 feet
SA/DA ration = 1.90 % From Table 1.1
Minimum pond surface area (SA) _ (DA * SA/DA ratio)/100
SA = 0.343 acres
14953 sq. ft.
Normal pool elevation = 373.0 feet
Surface area provided = 0.36 acr
15711 sq. t.
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.457 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 0.687 acre-ft
29935 cu. ft.
Riser structure crest elevation = 375 feet
Runoff storage provided = 0.7544 ac-ft
32862 cu. ft.
Pulte Stormwater Calcs Wetlands.xls - FES #31 3/28/2002
LONG LAKE SUBDIVISION
TRACT 1 POND B (FES #79B) EXTENDED DRY DETENTION BASIN
OPERATION AND MAINTENANCE AGREEMENT
The dry detention basin system is defined as the dry detention basin, pre-treatment including forebays and the
vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the dry detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice on the skimmer 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 dry 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 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.
When the sediment depth reads 1.6 feet in the main pond, the sediment shall be removed.
When the sediment depth reads 1.6 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
Top of Dam Elevation 390 ft
Sediment Removal El. 3
------------?- Sediment Removal Elevation-385 ft 4r 75%
- ---- -------
Bottom E-v-a-tion 383.4 5%
o
FOREBAY MAIN POND
Page 1 of 2
LONG LAKE SUBDIVISION
TRACT 1 POND B (FES #79B) EXTENDED DRY DETENTION BASIN
OPERATION AND MAINTENANCE AGREEMENT
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface
6. All components of the dry detention basin system shall be maintained in good working order.
7. 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: LAW OE-Qe-e I-. I-I FV N eo-
Title: ATiJIZ.N C-Y - i 4 - FAc--T
Address: d o 1 l1 Z2? sc??.? C?4K-5 i3c tLe-VAV-D . sc,L 1-Tc- 25c?
Phone
Signat
Date: 9- - © I - O -
7-Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of LU do hereby certify that L ?„ << L:,,?;,, .?
personally appeared before me this day of T? and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
,`11111111i1i/ca?
EN
t10
9 PUBLIC
C0UNTA
I/11f-11101`
SEAL
My commission expires P- -.2 7 - o

Page 2 of 2
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Job File: K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Rain Dir: I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\
--------------------------
--------------------------
JOB TITLE
--------------------------
--------------------------
Long Lake Subdivision
Tract 1 Pond B Design (FES #79B)
Raleigh, NC
W&R Project #201113.2
The Modified Rational Method was used to determine Qpeaks for the drainage area due to
its small size. The rainfall data was taken from the Intensity-Duration-Frequency Table
for the Raleigh area published in the City of Raleigh Stormwater Management Design
Manual.
The proposed extended dry detention pond is designed to achieve diffuse flow through the
Neuse Riparian Buffer for the runoff from the first 1-inch of rainfall. The pond is
designed with two separate outlet structures to achieve the minimum drain down time for
the runoff from the first 1" of rainfall. First, there is a standard riser and barrel
structure as the primary outlet for the pond. The second part of the outlet structure is
a floating skimmer device that dewaters the required storage volume in 48 to 72 hours.
Tract 1 Pond B Highlights:
Bottom of Pond Elevation = 383.4'
Top of Dam = 390'
Required storage volume = 1.04 ac-ft
Storage volume provided = 1.045 ac-ft
Calculated Freeboard for 10-yr design storm = 0.94 ft
Calculated Freeboard for 100-yr design storm = 0.15 ft
Outlet Structure:
¦ 48" diameter RCP riser structure with crest at 387.75'
¦ 30" RCP Barrel
¦ Floating Skimmer device with constant Q = 0.19 cfs for draw-down
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Table of Contents
********************** MASTER SUMMARY **********************
Watershed....... Mod. Rational Grand Summary ........ 1.01
Master Network Summary ............. 1.02
********************** RAINFALL DATA ***********************
1-yr IDF Table ...................................... 2.01
2-yr IDF Table ...................................... 2.01
10-yr IDF Table ..................................... 2.02
100-yr IDF Table .................................... 2.02
********************** TC CALCULATIONS *********************
FES #79B AREA... Tc Calcs ........................... 3.01
*********************** POND VOLUMES ***************** ******
FES #79B 2:1.... Vol: Elev-Area ..................... 4.01
******************** OUTLET STRUCTURES *************** ******
FES #79B OUTLET Outlet Input Data .................. 5.01
Composite Rating Curve ............. 5.04
*********************** POND ROUTING ***************** ******
FES #79B DRY.... Pond E-V-Q Table ................... 6.01
****************** RATIONAL METHOD CALCS ************* ******
FES #79B AREA... 1-yr Mod. Rational Storm Calcs ..... 7.01
FES #79B AREA... 2-yr Mod. Rational Storm Calcs ..... 7.02
FES #79B AREA... 10-yr Mod. Rational Storm Calcs .... 7.03
FES #79B AREA... 100-yr Mod. Rational Storm Calcs ... 7.04
FES #79B AREA... C and Area ......................... 7.05
FES #79B AREA... Rational Peak Q's ................... 7.06
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Mod. Rational Grand Summary Page 1.01
Name.... Watershed
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
************************************************************************
************************************************************************
* *
* *
* MODIFIED RATIONAL METHOD
* ---- Grand Summary For All Storm Frequencies ----
* *
* *
************************************************************************
************************************************************************
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)

................ Area =
......... 24.180 acres
............
...... Tc
............... = .0833
....... hrs
...........
................ ......... ............ ...... ............... ..................
VOLUMES
Freq. Adjusted Duration I Qpeak Allowable Inflow Storage
years 'C' hrs in/hr cfs cfs ac-ft ac-ft
-
1 .710 --
.4333 ------------
2.4059 ------
41.65 ----------- ---
30.00 I -------
1.492 -----------
.851
2 .710 .4167 3.0842 53.39 38.00 I 1.839 1.053
10 .710 .5833 3.4306 59.39 50.00 I 2.863 1.486
100 .710 .5833 4.8808 84.49 75.00 4.073 2.007
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Master Network Summary Page 1.02
Name.... Watershed
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
MASTER DESIGN STORM SUMMARY
Default Network Design Storm File, ID RAL_IDF.IDQ Raleigh IDF
Return Event
------------
1-yr
2-yr
10-yr
100-yr
Rainfall
Type
---------------
I-D-F Table
I-D-F Table
I-D-F Table
I-D-F Table
MASTER NETWORK SUMMARY
Modified Rational Method Network
IDF File IDF ID
RAL_IDF 1-yr IDF Table
RAL IDF 2-yr IDF Table
RAL_IDF 10-yr IDF Table
RAL_IDF 100-yr IDF Table
(*Node=Outfall; +Node=Diversion;)
(Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt)
Return HYG Vol
Node ID Type Event ac-ft Trun
-----------------
FES 479B AREA ----
AREA ------
1 ---------- --
1.492
FES #79B AREA AREA 2 1.838
FES #79B AREA AREA 10 2.863
FES #79B AREA AREA 100 4.074
FES #79B DRY IN POND 1 1.491
FES #79B DRY IN POND 2 1.837
FES #79B DRY IN POND 10 2.863
FES #792 DRY IN POND 100 4.073
FES #79B DRY OUT POND 1 .742
FES #79B DRY OUT POND 2 1.088
FES #79B DRY OUT POND 10 2.111
FES #79B DRY OUT POND 100 3.320
*OUTLET (LAKE) JCT 1 .742
*OUTLET (LAKE) JCT 2 1.088
*OUTLET (LAKE) JCT 10 2.111
*OUTLET (LAKE) JCT 100 3.320
Max
Qpeak Qpeak Max WSEL Pond Storage
hrs cfs ft ac-ft
--
--
---------
.0833 --------
41.65 -------- -------
-
.0833 53.39
.0833 59.39
.0833 84.49
.0900 41.65
.0900 53.39
.0900 59.39
.0900 84.49
.4600 27.14 388.53 1.277
.4300 44.55 388.84 1.375
.5800 58.95 389.06 1.448
.5900 75.90 389.85 1.715
.4600 27.14
.4300 44.55
.5800 58.95
.5900 75.90
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... I-D-F Table Page 2.01
Name.... 1-yr IDF Table Tag: 1-yr Event: 1 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 1-yr Design Storm (80% of 2-yr)
Storm... 1-yr IDF Table Tag: 1-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833
.1670
.2500
.3330
.5000
.6670
.8330
1.0000
1.5000
2.0000
3.0000
6.0000
12.0000
24.0000
4.6080
3.8080
3.2320
2.7760
2.1600
1.8240
1.5520
1.3600
.9760
.7600
.5680
.3520
.2080
.1200
Type.... I-D-F Table
Name.... 2-yr IDF Table Tag: 2-yr Event: 2 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 2-yr Storm from City of Raleigh IDF Table
Storm... 2-yr IDF Table Tag: 2 -yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833 5.7600
.1670 4.7600
.2500 4.0400
.3330 3.4700
.5000 2.7000
.6670 2.2800
.8330 1.9400
1.0000 1.7000
1.5000 1.2200
2.0000 .9500
3.0000 .7100
6.0000 .4400
12.0000 .2600
24.0000 .1500
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... I-D-F Table Page 2.02
Name.... 10-yr IDF Table Tag: 10-yr Event: 10 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL IDF.IDF
Title... 10-yr Event Table from City of Raleigh IDF Table
Storm... 10-yr IDF Table Tag: 10-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833
.1670
.2500
.3300
.5000
.6670
.8330
1.0000
1.5000
2.0000
3.0000
6.0000
12.0000
24.0000
7.5000
6.1300
5.2500
4.6400
3.7100
3.1500
2.7100
2.4100
1.7400
1.3700
1.0200
.6500
.3900
.2200
Type.... I-D-F Table
Name.... 100-yr IDF Table Tag: 100-yr Event: 100 yr
File.... I:\ENGFILE\HAESTAD\PPW RAINFALL DATA\WAKE CO\RAL_IDF.IDF
Title... 100-yr Event from City of Raleigh IDF Table
Storm... 100-yr IDF Table Tag: 100-yr
Rainfall-Intensity-Duration Curve
Time, hrs Intens., in/hr
.0833 9.7200
.1670 8.4000
.2500 7.2400
.3330 6.4700
.5000 5.2800
.6670 4.4800
.8330 3.8800
1.0000 3.5000
1.5000 2.5300
2.0000 2.0000
3.0000 1.5000
6.0000 .9600
12.0000 .5700
24.0000 .3300
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Tc Calcs Page 3.01
Name.... FES #79B AREA
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
........................................................................
........................................................................
TIME OF CONCENTRATION CALCULATOR
........................................................................
........................................................................
Segment #1: Tc: User Defined
Description: Tc = 5 minutes
Segment #1 Time: .0833 hrs
------------------------------------------------------------------------
-------------------------
-------------------------
Total Tc: .0833 hrs
Calculated Tc < Min.Tc:
Use Minimum Tc...
Use Tc = .0833 hrs
-------------------------
-------------------------
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Vol: Elev-Area Page 4.01
Name.... FES #79B 2:1
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Elevation Planimeter Area Al+A2+sgr(Al*A2) Volume Volume Sum
(ft)
------------ (sq.in) (acres)
--------------------- (acres)
---------------- (ac-ft)
---------- (ac-ft)
-------------
383.40 ----- .1872 .0000 .000 .000
384.00 ----- .2010 .5822 .116 .116
386.00 ----- .2490 .6737 .449 .566
388.00 ----- .3000 .8223 .548 1.114
390.00 ----- .3530 .9784 .652 1.766
POND VOLUME EQUATIONS
* Incremental volume computed by the Conic Method for Reservoir Volumes.
Volume = (1/3) * (EL2-EL1) * (Areal + Area2 + sq.rt.(Areal*Area2))
where: ELI, EL2 = Lower and upper elevations of the increment
Areal,Area2 = Areas computed for ELI, EL2, respectively
Volume = Incremental volume between ELI and EL2
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Outlet Input Data Page 5.01
Name.... FES #79B OUTLET
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Title... Outlet w/ Faircloth Skimmer
REQUESTED POND WS ELEVATIONS:
Min. Elev.= 383.40 ft
Increment = .10 ft
Max. Elev.= 390.00 ft
Spot Elevations, ft
387.75
**********************************************
OUTLET CONNECTIVITY
**********************************************
---> Forward Flow Only (Upstream to DnStream)
<--- Reverse Flow Only (DnStream to Upstream)
< --- > Forward and Reverse Both Allowed
Structure No. Outfall E1, ft E2, ft
User Defined Table SK ---> TW .000 390.000
Stand Pipe RI ---> CV 387.750 390.000
Culvert-Circular CV ---> TW 378.750 390.000
TW SETUP, DS Channel
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Outlet Input Data Page 5.02
Name.... FES #79B OUTLET
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Title... Outlet w/ Faircloth Skimmer
OUTLET STRUCTURE INPUT DATA
Structure ID = SK
Structure Type = User Defined Table
------------------------------------
ELEV-FLOW RATING TABLE
Elev, ft Flow, cfs
--------- ---------
383.40 .19
390.00 .19
Structure ID = RI
Structure Type = Stand Pipe
-----------------
# of openings -------------
= 1 ------
Invert Elev. = 387.75 ft
Diameter = 4.0000 ft
Orifice Area = 12.5664 sq.ft
Orifice Coeff. _ .600
Weir Length = 12.57 ft
Weir Coeff. = 3.100
K, Submerged = .000
K, Reverse = 1.000
Kb,Barrel = .000000 (per ft of full flow)
Barrel Length = .00 ft
Mannings n = .0000
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Outlet Input Data Page 5.03
Name.... FES #79B OUTLET
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Title... Outlet w/ Faircloth Skimmer
OUTLET STRUCTURE INPUT DATA
Structure ID = CV
Structure Type = Culvert-Circular
------------------
No. Barrels ------------
= 1 ------
Barrel Diameter = 2.5000 ft
Upstream Invert = 378.75 ft
Dnstream Invert = 377.00 ft
Horiz. Length = 56.00 ft
Barrel Length = 56.03 ft
Barrel Slope = .03125 ft/ft
OUTLET CONTROL DATA...
Mannings n = .0130
Ke = .5000
Kb = .009217
Kr = .5000
HW Convergence = .001
(forward entrance loss)
(per ft of full flow)
(reverse entrance loss)
+/- ft
INLET CONTROL DATA...
Equation form = 1
Inlet Control K = .0098
Inlet Control M = 2.0000
Inlet Control c = .03980
Inlet Control Y = .6700
T1 ratio (HW/D) = 1.145
T2 ratio (HW/D) = 1.291
Slope Factor = -.500
Use unsubmerged inlet control Form 1 equ. below Ti elev.
Use submerged inlet control Form 1 equ. above T2 elev.
In transition zone between unsubmerged and submerged inlet control,
interpolate between flows at T1 & T2...
At T1 Elev = 381.61 ft ---> Flow = 27.16 cfs
At T2 Elev = 381.98 ft ---> Flow = 31.05 cfs
Structure ID = TW
Structure Type = TW SETUP, DS Channel
------------------------------------
FREE OUTFALL CONDITIONS SPECIFIED
CONVERGENCE TOLERANCES ...
Maximum Iterations= 30
Min. TW tolerance = .01 ft
Max. TW tolerance = .01 ft
Min. HW tolerance = .01 ft
Max. HW tolerance = .01 ft
Min. Q tolerance = .10 cfs
Max. Q tolerance = .10 cfs
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Composite Rating Curve Page 5.04
Name.... FES #79B OUTLET
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Title... Outlet w/ Faircloth Skimmer
***** COMPOSITE OUTFLOW SUMMARY ****
WS Elev, Total Q Notes
-------- -------- ----- --- Converge --- ---- --- ---------------
Elev. Q TW Elev Error
ft cfs ft +/-ft Contributing Structures
--------
383.40 -------
.19 -----
Free --- ----- -
Outfall ---
SK ----
(no ---
Q: ---------------
RI,CV)
383.50 .19 Free Outfall SK (no Q: RI,CV)
383.60 .19 Free Outfall SK (no Q: RI,CV)
383.70 .19 Free Outfall SK (no Q: RI,CV)
383.80 .19 Free Outfall SK (no Q: RI,CV)
383.90 .19 Free Outfall SK (no Q: RI,CV)
384.00 .19 Free Outfall SK (no Q: RI,CV)
384.10 .19 Free Outfall SK (no Q: RI,CV)
384.20 .19 Free Outfall SK (no Q: RI,CV)
384.30 .19 Free Outfall SK (no Q: RI,CV)
384.40 .19 Free Outfall SK (no Q: RI,CV)
384.50 .19 Free Outfall SK (no Q: RI,CV)
384.60 .19 Free Outfall SK (no Q: RI,CV)
384.70 .19 Free Outfall SK (no Q: RI,CV)
384.80 .19 Free Outfall SK (no Q: RI,CV)
384.90 .19 Free Outfall SK (no Q: RI,CV)
385.00 .19 Free Outfall SK (no Q: RI,CV)
385.10 .19 Free Outfall SK (no Q: RI,CV)
385.20 .19 Free Outfall SK (no Q: RI,CV)
385.30 .19 Free Outfall SK (no Q: RI,CV)
385.40 .19 Free Outfall SK (no Q: RI,CV)
385.50 .19 Free Outfall SK (no Q: RI,CV)
385.60 .19 Free Outfall SK (no Q: RI,CV)
385.70 .19 Free Outfall SK (no Q: RI,CV)
385.80 .19 Free Outfall SK (no Q: RI,CV)
385.90 .19 Free Outfall SK (no Q: RI,CV)
386.00 .19 Free Outfall SK (no Q: RI,CV)
386.10 .19 Free Outfall SK (no Q: RI,CV)
386.20 .19 Free Outfall SK (no Q: RI,CV)
386.30 .19 Free Outfall SK (no Q: RI,CV)
386.40 .19 Free Outfall SK (no Q: RI,CV)
386.50 .19 Free Outfall SK (no Q: RI,CV)
386.60 .19 Free Outfall SK (no Q: RI,CV)
386.70 .19 Free Outfall SK (no Q: RI,CV)
386.80 .19 Free Outfall SK (no Q: RI,CV)
386.90 .19 Free Outfall SK (no Q: RI,CV)
387.00 .19 Free Outfall SK (no Q: RI,CV)
' Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Composite Rating Curve Page 5.05
Name.... FES #79B OUTLET
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Title... Outlet w/ Faircloth Skimmer
***** COMPOSITE OUTFLOW SUMMARY ****
WS Elev, Total Q Notes
-------- -------- ------ -- Converge ---------- ----------
Elev. Q TW El ev Error
ft cfs ft +/-ft Contributing Structures
--------
387.10 -------
.19 ------
Free -- ----- -
Outfall ----------
SK (no Q: ---------------
RI,CV)
387.20 .19 Free Outfall SK (no Q: RI,CV)
387.30 .19 Free Outfall SK (no Q: RI,CV)
387.40 .19 Free Outfall SK (no Q: RI,CV)
387.50 .19 Free Outfall SK (no Q: RI,CV)
387.60 .19 Free Outfall SK (no Q: RI,CV)
387.70 .19 Free Outfall SK (no Q: RI,CV)
387.75 .19 Free Outfall SK (no Q: RI,CV)
387.80 .63 Free Outfall SK,RI,CV
387.90 2.45 Free Outfall SK,RI,CV
388.00 5.06 Free Outfall SK,RI,CV
388.10 8.26 Free Outfall SK,RI,CV
388.20 11.95 Free Outfall SK,RI,CV
388.30 16.08 Free Outfall SK,RI,CV
388.40 20.60 Free Outfall SK,RI,CV
388.50 25.49 Free Outfall SK,RI,CV
388.60 30.72 Free Outfall SK,RI,CV
388.70 36.26 Free Outfall SK,RI,CV
388.80 42.10 Free Outfall SK,RI,CV
388.90 48.23 Free Outfall SK,RI,CV
389.00 54.63 Free Outfall SK,RI,CV
389.10 61.29 Free Outfall SK,RI,CV
389.20 73.24 Free Outfall SK,RI,CV
389.30 73.65 Free Outfall SK,RI,CV
389.40 74.06 Free Outfall SK,RI,CV
389.50 74.47 Free Outfall SK,RI,CV
389.60 74.87 Free Outfall SK,RI,CV
389.70 75.28 Free Outfall SK,RI,CV
389.80 75.69 Free Outfall SK,RI,CV
389.90 76.08 Free Outfall SK,RI,CV
390.00 76.48 Free Outfall SK,RI,CV
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Pond E-V-Q Table Page 6.01
Name.... FES #79B DRY
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
LEVEL POOL ROUTING DATA
HYG Dir = K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\
Inflow HYG file = NONE STORED - FES #79B DRY IN 1-yr
Outflow HYG file = NONE STORED - FES #79B DRY OUT 1-yr
Pond Node Data = FES #79B DRY
Pond Volume Data = FES #79B 2:1
Pond Outlet Data = FES #79B OUTLET
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 383.40 ft
Starting Volume = .000 ac- ft
Starting Outflow = .19 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .19 cfs
Time Increment = .0100 hrs
Elevation Outflow Storage Area Infilt. Q Total 2S/t + O
ft cfs ac-ft acres cfs cfs cfs
------------
383.40 ------------
.19 ---------
.000 ---- --------
.1872 -----------
.00 ------------
.19 ----------
.19
383.50 .19 .019 .1895 .00 .19 45.77
383.60 .19 .038 .1917 .00 .19 91.90
383.70 .19 .057 .1940 .00 .19 138.57
383.80 .19 .077 .1963 .00 .19 185.81
383.90 .19 .096 .1987 .00 .19 233.60
384.00 .19 .116 .2010 .00 .19 281.97
384.10 .19 .137 .2033 .00 .19 330.89
384.20 .19 .157 .2056 .00 .19 380.35
384.30 .19 .178 .2079 .00 .19 430.37
384.40 .19 .199 .2102 .00 .19 480.96
384.50 .19 .220 .2125 .00 .19 532.11
384.60 .19 .241 .2149 .00 .19 583.83
384.70 .19 .263 .2172 .00 .19 636.10
384.80 .19 .285 .2196 .00 .19 688.95
384.90 .19 .307 .2220 .00 .19 742.38
385.00 .19 .329 .2244 .00 .19 796.39
385.10 .19 .352 .2268 .00 .19 850.98
385.20 .19 .374 .2292 .00 .19 906.14
385.30 .19 .397 .2316 .00 .19 961.90
385.40 .19 .421 .2341 .00 .19 1018.25
385.50 .19 .444 .2365 .00 .19 1075.19
385.60 .19 .468 .2390 .00 .19 1132.73
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Pond E-V-Q Table Page 6.02
Name.... FES #79B DRY
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
LEVEL POOL ROUTING DATA
HYG Dir = K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\
Inflow HYG file = NONE STORED - FES #79B DRY IN 1-yr
Outflow HYG file = NONE STORED - FES #79B DRY OUT 1-yr
Pond Node Data = FES #79B DRY
Pond Volume Data = FES #79B 2:1
Pond Outlet Data = FES #79B OUTLET
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 383.40 ft
Starting Volume = .000 ac- ft
Starting Outflow = .19 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .19 cfs
Time Increment = .0100 hrs
Elevation Outflow Storage Area Infilt. Q Total 2S/t + O
ft cfs ac-ft acres cfs cfs cfs
------------
385.70 -------------
.19 --------
.492 ---- --------
.2415 -----------
.00 ------------
.19 ----------
1190.85
385.80 .19 .516 .2440 .00 .19 1249.59
385.90 .19 .541 .2465 .00 .19 1308.94
386.00 .19 .566 .2490 .00 .19 1368.90
386.10 .19 .591 .2514 .00 .19 1429.45
386.20 .19 .616 .2539 .00 .19 1490.58
386.30 .19 .641 .2563 .00 .19 1552.32
386.40 .19 .667 .2588 .00 .19 1614.66
386.50 .19 .693 .2613 .00 .19 1677.60
386.60 .19 .719 .2638 .00 .19 1741.14
386.70 .19 .746 .2663 .00 .19 1805.27
386.80 .19 .773 .2688 .00 .19 1870.03
386.90 .19 .800 .2714 .00 .19 1935.39
387.00 .19 .827 .2739 .00 .19 2001.37
387.10 .19 .854 .2765 .00 .19 2067.97
387.20 .19 .882 .2790 .00 .19 2135.17
387.30 .19 .910 .2816 .00 .19 2203.01
387.40 .19 .939 .2842 .00 .19 2271.48
387.50 .19 .967 .2868 .00 .19 2340.57
387.60 .19 .996 .2894 .00 .19 2410.30
387.70 .19 1.025 .2920 .00 .19 2480.64
387.75 .19 1.040 .2934 .00 .19 2516.07
387.80 .63 1.054 .2947 .00 .63 2552.08
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Pond E-V-Q Table Page 6.03
Name.... FES #79B DRY
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
LEVEL POOL ROUTING DATA
HYG Dir = K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\
Inflow HYG file = NONE STORED - FES #79B DRY IN 1-yr
Outflow HYG file = NONE STORED - FES #79B DRY OUT 1-yr
Pond Node Data = FES #79B DRY
Pond Volume Data = FES #79B 2:1
Pond Outlet Data = FES #79B OUTLET
No Infiltration
INITIAL CONDITIONS
Starting WS Elev = 383.40 ft
Starting Volume = .000 ac- ft
Starting Outflow = .19 cfs
Starting Infiltr. _ .00 cfs
Starting Total Qout= .19 cfs
Time Increment = .0100 hrs
Elevation Outflow Storage Area Infilt. Q Total 2S/t + O
ft cfs ac-ft acres
- cfs cfs cfs
------------
387.90 -------------
2.45 ---------
1.084 --- --
-----
.2973 -----------
.00 ------------
2.45 ----------
2625.54
388.00 5.06 1.114 .3000 .00 5.06 2700.43
388.10 8.26 1.144 .3025 .00 8.26 2776.54
388.20 11.95 1.174 .3051 .00 11.95 2853.74
388.30 16.08 1.205 .3077 .00 16.08 2932.02
388.40 20.60 1.236 .3103 .00 20.60 3011.32
388.50 25.49 1.267 .3128 .00 25.49 3091.61
388.60 30.72 1.298 .3154 .00 30.72 3172.86
388.70 36.26 1.330 .3181 .00 36.26 3255.04
388.80 42.10 1.362 .3207 .00 42.10 3338.17
388.90 48.23 1.394 .3233 .00 48.23 3422.23
389.00 54.63 1.427 .3260 .00 54.63 3507.20
389.10 61.29 1.459 .3286 .00 61.29 3593.07
389.20 73.24 1.492 .3313 .00 73.24 3684.85
389.30 73.65 1.526 .3340 .00 73.65 3765.76
389.40 74.06 1.559 .3366 .00 74.06 3847.32
389.50 74.47 1.593 .3393 .00 74.47 3929.52
389.60 74.87 1.627 .3421 .00 74.87 4012.38
389.70 75.28 1.661 .3448 .00 75.28 4095.87
389.80 75.69 1.696 .3475 .00 75.69 4180.05
389.90 76.08 1.731 .3502 .00 76.08 4264.88
390.00 76.48 1.766 .3530 .00 76.48 4350.38
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.01
Name.... FES #79B AREA Tag: 1-yr Event: 1 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Storm... 1-yr IDF Table Tag: 1-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN FREQUENCY:
----------------- 1 yr 'C'
---------- Adjustment
----------- = 1.000Allowable
------------------- Q = 30.00
---------- cfs
---------
Hydrograph Storm Duration, Td = .4333 hrs Tc = .0833 hrs
Hydrograph File:
................. 1-yr
..........
...........
.......
............
..........
.........
................. .......... ........... ....... ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'C' 'C' hrs in/hr acres cfs ac-ft ac-ft
-----------------

.710 .710 ----------

.0833 -----------

4.6080 -------

24.180
-------- --
-
79.77
----------
.549
---------
.343
.710 .710 .1667 3.8112 24.180 65.97 I .909 .599
.710 .710 .2500 3.2320 24.180 55.95 I 1.156 .743
.710 .710 .3333 2.7748 24.180 48.03 1.323 .807
************************************************************ Storage Maximum
710 .710 .4333 2.4059 24.180 41.65 I 1.492 .851
****************************************************************************
.710 .710 .5000 2.1600 24.180 37.39 1.545 .822
.710 .710 .6667 1.8247 24.180 31.59 I 1.740 .811
.710 .710 .8333 1.5516 24.180 26.86 Qpeak < Qallow
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.02
Name.... FES #79B AREA Tag: 2-yr Event: 2 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Storm... 2-yr IDF Table Tag: 2-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN FREQUENCY:
----------------- 2 yr 'C'
---------- Adjustment
----------- = 1.000Allowable
------------------- Q = 38.00
---------- cfs
---------
Hydrograph Storm Duration, Td = .4167 hrs Tc = .0833 hrs
Hydrograph File:
................. 2-yr
..........
...........
.......
............
..........
.........
................. .......... ........... ....... ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'Cl 'C' hrs in/hr acres cfs ac-ft ac-ft
-----------------
.710 .710 ----------
.0833 -----------
5.7600 -------
24.180 --------- --
99.71 I ----------
.686 --------
.428
.710 .710 .1667 4.7640 24.180 82.47 1.136 .743
.710 .710 .2500 4.0400 24.180 69.94 1.445 .922
.710 .710 .3333 3.4685 24.180 60.04 1.654 1.000
************************************************************ Storage Maximum
710 .710 .4167 3.0842 24.180 53.39 1.839 1.053
****************************************************************************
710 .710 .5000 2.7000 24.180 46.74 1.931 1.015
710 .710 .6667 2.2808 24.180 39.48 I 2.175 .998
710 .710 .8333 1.9395 24.180 33.57 Qpeak < Qallow
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.03
Name.... FES #79B AREA Tag: 10-yr Event: 10 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW_WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Storm... 10-yr IDF Table Tag: 10-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN
------ FREQUENCY:
----------- 10 yr 'C' Adjustment = 1.000Allowable
---------------------------------------- Q = 50.00
----------- cfs
--------
Hydrograph Storm Duration, Td = .5833 hrs Tc = .0833 hrs
Hydrograph File:
................. 10-yr
.........
...........
........
............
...........
........
...... ........... ......... ........... ........ ............ ...................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'C' 'Cl hrs in/hr acres cfs ac-ft ac-ft
------
.710 -----------
.710 ---------
.0833 -----------
7.5000 --------
24.180 --------- --
129.83 I -----------
.894 --------
.520
.710 .710 .1667 6.1355 24.180 106.21 I 1.463 .946
.710 .710 .2500 5.2500 24.180 90.88 I 1.878 1.189
.710 .710 .3333 4.6218 24.180 80.01 2.204 1.343
.710 .710 .5000 3.7100 24.180 64.22 2.654 1.449
************************************************************ Storage Maximum
.710 .710 .5833 3.4306 24.180 59.39 2.863 1.486
****************************************************************************
710 .710 .6667 3.1511 24.180 54.55 3.005 1.456
710 .710 .8333 2.7094 24.180 46.90 Qpeak < Qallow
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Mod. Rational Storm Calcs Page 7.04
Name.... FES #79B AREA Tag: 100-yr Event: 100 yr
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
Storm... 100-yr IDF Table Tag: 100-yr
MODIFIED RATIONAL METHOD
---- Summary for Single Storm Frequency ----
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
RETURN
------ FREQUENCY:
----------- 100 yr
--------- 'C' Adjustment =
------------------ 1.000Allowable
-------------- Q = 75.00
---------- cfs
--------
Hydrograph Storm Duration, Td = .5833 hrs Tc = .0833 hrs
Hydrograph File:
................. 100-yr
.........
...........
.......
..............
..........
........
...... ........... ......... ........... ....... .............. ..................
VOLUMES
Wtd. Adjusted Duration Intens. Area Qpeak Inflow Storage
'C' 'C' hrs in/hr acres cfs ac-ft ac-ft
------ -----------
.710 ---------
.0833 -----------
9.7200 -------
24.180 ----------
168.26 I
1.158
.700
.710 .710 .1667 8.4053 24.180 145.50 I 2.004 1.229
.710 .710 .2500 7.2400 24.180 125.33 I 2.589 1.557
.710 .710 .3333 6.4676 24.180 111.96 I 3.084 1.793
.710 .710 .5000 5.2800 24.180 91.40 3.777 1.969
************************************************************ Storage Maximum
.710 .710 .5833 4.8808 24.180 84.49 4.073 2.007
****************************************************************************
710 .710 .6667 4.4816 24.180 77.58 4.274 1.950
710 .710 .8333 3.8792 24.180 67.15 Qpeak < Qallow
4 f
Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... C and Area
Name.... FES #79B AREA2
Page 7.05
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
RATIONAL C COEFFICIENT DATA
.........................................................................
.........................................................................
Area C x Area
Soil/Surface Description C acres acres
-------------------------------- -------- ---------- ----------
combined C value .7100 24.180 17.168
WEIGHTED C & TOTAL AREA ---> .7100 24.180 17.168
.........................................................................
.........................................................................

Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Type.... Rational Peak Q's
Name.... RAT.Q 10
Page 7.06
File.... K:\01\01-110\01113\H&H\SWMP\PPW WETLANDS\FES#79B EXTENDED DRY DETENTION.PPW
SUMMARY OF RATIONAL METHOD PEAK DISCHARGES
Q = CiA * Units Conversion; Where Conversion = 43560 / (12 * 3600)
Rational Storms: RAL IDF.IDQ Raleigh IDF
Tag
----- Freq
------ File
------
------ IDF Curve
-----------
-----
100-yr 100 RAL ID F.IDF 100-yr IDF Table
Tc = .0833 hrs

Tag
Freq
C
C adj ----------
C --------
I -----------
Area
Peak Q
(years) factor final in/hr acres cfs
-----
1-yr ------
1 -----
.710 ------
1.000 ----------
I .710 --------
4.6080 ----------- ?
24.180 ----------
79.77
2-yr 2 .710 1.000 .710 5.7600 24.180 99.71
10-yr 10 .710 1.000 .710 7.5000 24.180 129.83
100-yr 100 .710 1.000 .710
---------- 9.7200
-------- 24.180
----------- 168.26
' Long Lake Subdivision
Tract 1 Pond B PondPack Output Report
Volume vs. Time
Minimum Drain Time for Tract 1 Pond B w/ Skimmer
E
U
(0
a?
E
0
Plotted Curves
MDRAIN 10 OUT
Time (hrs)
0 10 20 30 40 50 60 70
Project Name: Long Lake Subdivision
City/State: Raleigh, NC
Project #: 201113.2
Date: 15-Mar-02
Table 1.1 Surface Area to Drainage Area Ratio for Permanent Pool Sizing for 85% Pollutant
Removal Efficiencv in the Piedmont
% Impervious
Cover Permanent Pool De
3.0 4.0 5.0 6.0 pth (feet)
7.0 8.0 9.0
10 0.59 0.49 0.43 0.35 0.31 0.29 0.26
20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Source: NCDENR/DWQ Stormwater Best Management Practices, pg. 5, April 1999
TRACT 1 POND B (FES #7913)
Rational
C Fraction
IA Total
Area (ac) Pervious
(ac) Impervious
(ac)
Pervious Area 0.22 0 11.62 11.62 0
Impervious 0.95 1.00 12.56 0 12.56
Totals 24.18 11.62 12.56
% Impervious Surface Area = 52%
1-Inch Runoff Volume Calculation
Using the runoff volume calculations in the "Simple Method" as described by Schueler (1987)
Rv = 0.05 + 0.009(1) where, Rv = Runoff coefficient, in./in.
I = Percent impervious
Rv = 0.52 in./in.
Total runoff volume from 1-inch precipitation:
Runoff volume, S = (Design rainfall) (Rv) (Drainage Area)
S = 1.043 acre-ft
45422 cu. ft.
Riser structure crest elevation =
Runoff storage provided =
387.75 feet
ac-ft
4552 u. ft.
?SJq? 7 C lase.
Pulte Stormwater Calcs Wetlands.xls - FES #79B 3/28/2002

Project Name: 14srere
Project No. DWQ.t&~
I
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations 2.0 average depth status
Bottom of Basin (ft) 348.6
Permanent Pool (ft) 368.5 19.9 ft. depth check depth
Temporary Pool (ft) 369.6 1.1 ft. depth ok

areas
Permanent Pool SA (sq ft) 753588 450220 sq. ft. ok
Drainage Area (ac) 649.6
Impervious Area (ac) 236.7 36.4 %
volumes
Permanent Pool (cu ft) 1481000
Temporary Pool (cu ft) 906000 891201 cu. ft. ok
Forebay (cu ft) 0 0.0% check forebt
other parameters
SA/DA 0 1.59
Orifice Diameter (in) 24 11.21 cfs drawdown
Design Rainfall (in) 1 0.9 day drawdown check draw(
Linear Interpolation of'Correet SA/DA***
19.9 ft. Permanent Pool Depth
% Impervious SA/DA from Table
Next Lowest 30 1.34
Project Impervious 36.4 1.59
Next Highest 40 1.73
WITHERS RAVEN EL
ENGINEERS I PLANNERS I SURVEYORS
March 8, 2002
Mr. Todd St. John, PE
Environmental Engineer
North Carolina Department of Environment and Natural Resources
Division of Water Quality
2321 Crabtree Boulevard
Raleigh, North Carolina 27604-226o
RE: Long Lake Subdivision
DWQ Project Number 011549
WRES Project Number 201113.0
Mr. St. John:
W 8 2on?
Please find attached the enclosed, completed worksheet. Additionally, we offer this information in
response to your comments dated February 20, 2002.
Item 1:
The worksheet provided has been completed and included with this submittal. We estimate
that ±79 acres of impervious surface from our project will drain through Long Lake, and that ±12
acres of impervious surface will bypass Long Lake. It should be noted that the nutrient removal
provided by the Long Lake structure would likely provide a much greater degree of protection with
regards to the existing and future, offsite, impervious surfaces than will be missed in the areas
bypassing the dam. The estimated offsite impervious surface area that drains through Long Lake is
±158 acres.
Item 2:
It is our intention to utilize the riparian buffer areas to maximum extent practicable to
provide nutrient removal from the proposed site's storm water runoff. However, due to the
substantial size of the lake and the severe topography, we proposed to utilize Long Lake for
nutrient, sediment and peak discharge storm water controls via direct discharge consistent with the
Stormwater Management Plan. The aforementioned plan, in addition to the figure provided with this
letter, indicates the extent to which we feel this is appropriate and necessary given the site
constraints. Please note that Long Lake exists and that there will be no stream "channel" impacts
necessary to improve the existing facility. Further, we understand the Neuse River riparian buffer
rules to allow, with approval, the installation of a BMP in Zone 1 provided that said BMP is buffered.
We are hereby requesting this approval. The existing lake will be fully buffered, in many cases
greater than 50 feet. We recognize the difference in this situation is that our practice will be "in-
line". However, we reiterate the fact that it does exist today and was constructed in the 195o's by
the Soil Conservation Service. Finally, we have demonstrated that the State mandated maximum of
6.o lbs/ac/yr of total nitrogen loading for residential development, will not be exceeded for the
v1 MacKenan Drive i Cary, North Carolina 27511 1 tel: [phone] fax: [phone]oo8 i www.withersravenel.com
Page 2
March 8, 2002
Mr. Todd St. John, PE
waters leaving the proposed site; and the State mandated limit of 3.6 lbs/ac/yr can be achieved
with the optional payments to the NC Wetlands Restoration Fund.
Item 3:
An operation and maintenance agreement was previously provided with the Stormwater
Management Plan. The version previously provided gives much greater detail regarding
maintenance activities for the lake. Please advise if you feel the information provided is not
sufficient for this purpose
We trust the above information will be sufficient to complete the review and approval of the
Stormwater Management Plan provided for the subject site. Please advise should you have any
questions or comments.
Sincerely,
WITHERS & RAVEN , INC.
Ja es E. Canfield, PE
Attachments
cc: Mr. Doug Puvogel, Pulte Home Corporation
Mr. Lawrence Lippincott, Pulte Home Corporation
K:\oi\01-110\0u13\Proi\030802tsJc.doc
Project No. DWQ V 1 I's-4 l (to be provided by DWQ)
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, 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.
1. PROJECT INFORM TION (please complete the following information):
Project Name :
Contact Person: V-1m 4,'yJ ez 4 Phone Number: (9/ 5
For projects with multiple basins, specify which basin this worksheet applies to: .
Basin Bottom Elevation 8• (:, ft.
t3`1 (average elevation of the floor of the basin)
Permanent Pool Elevation ." ft. (elevation of the orifice invert out)
Temporary Pool Elevation (elevation of the outlet structure invert in)
Permanent Pool Surface Area 17%53 KW sq. ft. (water surface area at permanent pool elevation)
Drainage Area 0?. b ac. (on-site and off-site drainage to the basin)
Impervious Area 2 36. 7 ac. t
(on-site and off-site drainage to the basin)
Permanent Pool Volume 0 00 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 9'0(0. Upo cu. ft. (volume detained on top of the permanent pool)
Forebay Volume d11?? cu. ft.
SA/DA used o O 2 6 6 (surface area to drainage area ratio)
Diameter of Orifice 2,f in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. I fa requirement has not been met, attach an explanation of
why.
The temporary pool controls runoff from the 1 inch storm event.
t_ The basin length to width ratio is greater than 3:1.
PC- EX/s77A6- The basin side slopes are no steeper than 3:1.
- &)Q MA1- A submerged and vegetated perimeter shelf at less than 6:1 is provided.
F Vegetation to the permanent pool elevation is specified.
C. An emergency drain is provided to drain the basin.
EC- The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
FCC The temporary pool draws down in 2 to 5 days.
C The forebay volume is approximately equal to 20% of the total basin volume.
?- Sediment storage is provided in the permanent pool.
??- Access is provided for maintenance.
C- 6?QW4 A minimum 30-foot vegetative filter is provided at the outlet.
L A site specific operation and maintenance (O&M) plan is provided.
L A vegetation management/mowing schedule is provided in the O&M plan.
L Semi-annual inspections are specified in the O&M plan.
6 Q?C A debris check is specified in the O&M plan to be performed after every storm event.
Q C A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FOR WG100 09/97 Page 1 of 1
33
O?O? WAT ?9pG
o ?
MEMO
DATE: December 14, 2001
TO: John Dorney
FROM: Bob Zarzecki, ESIII
401 Wetlands Certification Unit
[phone]
Michael F.
William G. Ross, Jr., SE
Department of Environment and Natural Re:
Gregory J. Thorpe, Ph.D., Acting I
Division of Water
RE: Long Lake Project c% Pulte Homes, Raleigh, Wake County, DWQ No. 011549
John,
I've reviewed the PCN for the Long Lake Project. I don't think that we can issue the approval at this time for the reasons
stated below.
1. Stormwater - The proposed development will have approximately 35% impervious coverage. Todd believes that we
should require stormwater for 85% and nitrogen (constructed wetlands?). I believe they are attempting to meet the ?
City's required Neuse Stormwater ordinance by providing diffuse flow and using the existing lake as a wet pond (as
per the letter from the engineer to the City of Raleigh). Todd thinks we can issue it with a DWQ stormwater plan
approval condition.
2. Erosion & Sediment Control - The proposed ESC plan has two temporary basins (Basins 3 & 14) that appear to
discharge directly into an ephemeral channel which goes through the buffer and to the intermittent origin without first
providing diffuse flow. We need a narrative or plans from them stating how they intend to provide diffuse flow across
the buffer for Basins 3 and 14.
3. Country Trail #1 and 2 (Sheets 5 & 6) - These are two perennial stream crossings of approximately a 5-foot wide
stream (Turkey Creek) and a 3 to 4-foot wide stream (UT to Turkey Creek). I discussed this with Todd. They need to
provide addition design details that address the following.
3.1. Cross-sections depicting the width of the culverts to be used,
3.2. how they will provide for low-flow passage of water and aquatic life (will they be placed below the elevation of the
streambed),
3.3. will the culverts change the bankfull width of the stream,
3.4. will inlet and outlet protection or relocation of the stream be required,
3.5. how will they ensure that dis-equilibrium of stream beds or banks, adjacent to or upstream and down stream of
the above structures will not occur,
3.6. is either of these crossings within a FEMA-designated floodway
4. Diffuse Flow - the final approval needs to have a diffuse flow condition within it or addressed in stormwater plan
5. Mitigation - the numbers they provided seem accurate, however they may change depending on what we find out
from No. 3 above
6. Toscana Drive - They have not provided any numbers for impacts associated with Toscana Drive. They stated within
the PCN, "Since construction of the roadway by the applicant, acting alone, is a legal impossibility, permit
authorization for this roadway is not presented as part of this application". In my meeting with them on 11/07/01, they
told me that they were going to attempt to submit this as a separate project. If we are going to approve this
separately, then we need to be specific that we are not approving this impact and that it would require buffer and
potentially stream mitigation when it is submitted. If you think we should approve this as one project at the same time,
then we will need additional design details and impact numbers from them first.
Let me know what you would like for us to do. I think we need to put this on-hold.
- Bob
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/
?C tF WAT?p
\p r . - G
? r
Michael F. Easley
G6emor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
November 8, 2001
Wake County
DWQ Project No. 01-1549
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Gray Methven
Pulte Home Corporation
401 Harrison Blvd.
Cary, NC, 27513
Dear Mr. Methven:
On October 22, 2001, the NC Division of Water Quality (DWQ) received your application for a 401 Water Quality
Certification for the Long Lake project in Wake County. Insufficient information has been provided in order for us to
complete our review. Specifically, please provide the following materials so that we can complete our review of your
application:
• Please provide two sets of all the large fold-out maps included with the application. These will be required for
review by the Wetlands Restoration Program and our Raleigh Regional Office. For future reference, seven copies
of all application materials, including the pre-construction notification form and supporting maps and
documentation, should be bundled in any application for 401 Certification. Your application package included the
required seven copies of the application forms, but not the supporting maps and plans.
Until the information requested in this letter is provided, I will request (by copy of this letter) that the Corps of Engineers
place this project on hold. Also, this project will be placed on hold for our processing due to incomplete information (15A
NCAC 2H .0507(h)).
Thank you for your attention. If you have any questions, please Cyndi Karoly in our Central Office in Raleigh at (919)
733-9721.
incer
n Dorney
cc: Corps of Engineers Raleigh Regulatory Field Office
Raleigh DWQ Regional Office
File Copy
Central Files
Nelson Paul, ECPS, 2216 Dobbin Place, Raleigh, NC, 27604
011549
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)
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MALE/CH, NC 27604 FAX. CO10) 20-1, 1.3-11
E--MAIL: nypered?m/nd?pNnp.avm
October 18, 2001 NE Orel- 01RECT colvly 'CT.• 1612
Division of Water Quality
401 Wetlands Unit 0 1 15 4 9
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
Subject: Long Lake Project
Raleigh, Wake County, North Carolina
Gentlemen,

This letter is to notify you the proposed project, indicated above and described in the attached application,
is under consideration by the U.S. Army Corps of Engineers, Nationwide Permit authorization. This
application is being provided for your review under 401 Water Quality Certification and Nam River
Buffer rules.
Thank you for your assistance and please feel free to call me at [phone] if you have any questions
or if there is any deficiency.
Cordially yours,
ECPS
, Inc. PAYMENT
4A-0?" h)[CL--1VFD
r
Nelson G. Paul, PWS
General Manager/Land Use Consultant
RECEIPT OF DELIVERY
Accepted by.
Title:
Company:
Date:
M
Office Use Only: Form Version April 2001
USACE Action ID No. DWQ No.
If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than
leaving the space blank.
I. Processing FILE
C H
1. Check all of the approval(s) requested for this project:
X Section 404 Permit
? Section 10 Permit
X 401 Water Quality Certification
X Riparian or Watershed Buffer Rules
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 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 (see section VIII - Mitigation), check here: X
II. Applicant Information
Owner/Applicant Information
Name: Pulte Home Corporation
Mailing Address: C/O Gray Methven, Director of Land
401 Harrison Oaks Boulevard Suite 250
Cary, North Carolina 27513
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: [e-mail]
2. Agent 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: Nelson G. Paul
Company Affiliation: ECPS Inc.
Mailing Address: 2216 Dobbin Place
Raleigh. North Carolina 27604
Telephone Number: [phone] Fax Number:_ [phone]
E-mail Address: ngpaul@ n,ni dsprina.com
PA Y??
Page 3 of 12 ?, ,,
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Long Lake Project
2. T.I.P. Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): (See Attached)
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): Long Lake
Directions to site (include road numbers, landmarks, etc.):
From Raleigh west on Glenwood Avenue (Highway 70), right on Finecrest Property is on
left +/- Yz mile.
5. Site coordinates, if available (UTM or Lat/Long): 355241,784350
(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. Describe the existing land use or condition of the site at the time of this application:
Propertpresently being cleared outside Neuse River Buffer plus an additional 50'.
7. Property size (acres): 204,34 (Reference Wake County Tax Records)
8. Nearest body of water (stream/river/sound/ocean/lake): Turkey Creek
9. River Basin: Neuse River
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.eiu.st ite.nC.Lls/admin/nhii)s/.)
Page 4 of 12

10. Describe the purpose of the proposed work: Road construction to access site for residential
development.
11. List the type of equipment to be used to construct the project: Bulldozer, tracked
backhoe, dump truck, scraper, grader and paving equipment.
12. Describe the land use in the vicinity of this project:_ Residential and light commercial.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
(See attached supplemental information sheets.)
V. Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application: (See attached supplemental information sheets.)
VL 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
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.
Page 5 of 12
1. Wetland Impacts
Wetland Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
es/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
Country Trail #1 Fill 0.0362 No 120 feet Forested Wetland

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, exc. 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
online at ittIL//www.fenia.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., fmhwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.)
List the total acreage (estimated) of existing wetlands on the property: 28 acres
Total area of wetland impact proposed: 0.0362 acres
2. Stream Impacts, including all intermittent and perennial streams
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)
R105 Fill 147 UT 2 Feet (Ephemeral)
R110 Fill 291 UT 2 Feet (Ephemeral)
Country Trail #1 Culvert / Fill 186 Turkey Creek 8.5 Feet Perennial
Country Trail #2 Culvert / Fill 186 UT 8.5 Feet Perennial

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 ling 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
NMM_us Several intemet sites also allow direct download and printing of USGS maps (e.g., WwW.topozone.cog
www.ina? tq ?est.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on sitee- . 3721 Qarw?-
Page 6 of 12
J
/Q ?

Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U. S.
Open Water Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Name of Waterbody

(? applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, )
ocean, etc.)
(None)

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
4. Pond Creation (None)
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.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Size of watershed draining to pond: Expected pond surface area:
VIL Impact Justification (Avoidance and N inimization)
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.
(See attached supplemental information sheets.)
Page 7 of 12
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
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
htti)://h2o.cm.-.state.nc.iLs/ileNvettands/str=ide.html.
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.
Applicant is proposing to offset impacts to streams and buffers by paying the required
fees into the Wetland Restoration Program upon receipt of an Authorization Certificate
regarding a no practical alternatives determination.
Page 8 of 12
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at httpa?t?2o.e??r.state.nc.us/wrp/iudex.htar. 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): 372 ($43@0
Amount of buffer mitigation requested (square feet): 72,048 , t)
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
I3L Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federal/state/local)
land?
Yes ? No X
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 (DWQ Only)
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 X No ? If you answered "yes", provide the following information:
Page 9 of 12
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* Imp t) Multiplier Required
1 14,912 3 44,736
2 18,208 1.5 27,312
Total 33,120 72,048
Zone 1 extends out 30 feet perpendicular from near bank of
additional 20 feet from the edge of Zone 1.
an
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.
Applicant is proposing to offset impacts to streams and buffers by paving the reauired fees into
the Wetland Restoration Program upon receipt of an Authorization Certificate regarding a no
practical alternatives determination.
XL Stormwater (DWQ Only)
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.
(See attached supplemental information sheets.)
XUL Sewage Disposal (DWQ Only)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
City of Raleigh Waste Water Treatment Plant
XM Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules?
Yes ? No X
Is this an after-the-fact permit application?
Yes ? No X
Page 10 of 12
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).
(See previous discussions.)
/© - i,-j-. - e5 /
Applicant/Agent's SignatureV Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
US Army Corps Of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office Alexander Cherokee Iredell Mitchell
US Army Corps of Engineers Avery Clay Jackson Polk
151 Patton Avenue Buncombe Cleveland Lincoln Rowan
Room 208 Burke Gaston Macon Rutherford
Asheville, NC 28801-5006 Cabarrus Graham Madison Stanley
Telephone: [phone] Caldwell Haywood McDowell Swain
Fax: [phone] Catawba Henderson Mecklenburg Transylvania
Raleigh Regulatory Field Office Alamance Durham Johnston Rockingham
US Army Corps Of Engineers Alleghany Edgecombe Lee Stokes
6508 Falls of the Neuse Road Ashe Franklin Nash Surly
Suite 120 Caswell Forsyth Northampton Vance
Raleigh, NC 27615 Chatham Granville Orange Wake
Telephone: [phone] Davidson Guilford Person Warren
Fax: [phone] Davie Halifax Randolph Wilkes
Washington Regulatory Field Office Beaufort Currituck Jones
US Army Corps Of Engineers Bertie Dare Lenoir
Post Office Box 1000 Camden Gates Martin
Washington, NC 27889-1000 Carteret* Green Pamlico
Telephone: [phone] Chowan Hertford Pasquotank
Fax: [phone] Craven Hyde Perquimans
Wilmington Regulatory Field Office Anson Duplin Onslow
US Army Corps Of Engineers Bladen Harnett Pender
Post Office Box 1890 Brunswick Hoke Richmond
Wilmington, NC 28402-1890 Carteret Montgomery Robeson
Telephone: [phone] Columbus Moore Sampson
Fax: [phone] Cumberland New Hanover Scotland
Pitt
Tyrrell
Washington
Wayne
Union
Watauga
Yancey
Wilson
Yadkin
*Croatan National Forest Only
Page 11 of 12
PULTE HOMES CORPORATION
LONG LAKE PROJECT
RALEIGH, WAKE COUNTY
SUPPLEMENTAL INFORMATION TO APPLICATION
DATE: OCTOBER 18, 2001
M. Project Information
3) Property Identification Number (Tax PIN)
Property Identification Numbers (Wake County):
077702966340
Acres:
194.72
5.18
1.35
3.09
204.34
077702978934
078705071932
078705074849
IV. Prior Project History
Date Type Determination
Agency:
09-Aug-01
06-Aug-O1
Reference Code
NC Department of Environment and Natural Resources (NCDENR)
Neuse River Buffer Determination NBRRO-01-196
Perennial/Intermittent Determination
(None)
Agency: US Army Corps of Engineers
22-Jun-01 Wetland and Stream Jurisdictional Determination 200120974-Wake
(Documentations related to these determinations is provided for review in the NCDWQ
application copies)
V. Future Project Plans
The City of Raleigh is requesting the dedication of property for a roadway (Toscana Road) along
the southern edge of the subject property. This road will connect Glenwood. Avenue (U.S.
Highway 70) with Pinecrest Road and Grove Barton Drive. Construction of this roadway will
involve two other property owners, who are not necessarily agreeable with the road construction
activity and whose actions are outside the authority of the applicant. Additionally, because this is
not an action initiated by the applicant, the applicant has no control over avoidance or
minimization of impacts to natural resources.
Since construction of this roadway by the applicant, acting alone, is a legal impossibility, permit
authorization for this roadway is not presented as part of this application. The lead party is most
appropriately the City of Raleigh. The City of Raleigh is the beneficiary and has the power of
eminent domain necessary to initiate and complete this project under a separate permit
application.

1 of 1
VII. Impact Justification (Avoidance and Minimization)
Housing is a basic human need In the free-enterprise economic system of our country, demand
for housing is met primarily by private developers in response to fundamental economic
incentives. As part of the national builder community, Pulte Homes Corporation provides
housing choices to the demands of a diverse population. These choices are not only diverse in
their appeal to regional cultures, but diverse m their economic categories as well, including
affordable housing.
In pursing building goals, Pulte recognizes protection of our natural resources is for not only the
present, but future generations. In designing this project, Pulte selected an experienced
engineering firm known for their sensitivity for avoiding impacts to natural features. With the
approval of Pulte, the engineer has taken great care to design the proposed subdivision to avoid
disturbance of wetlands, streams and stream buffers to the maximum extent possible.
Preparing a profitable development plan acceptable to the NC Division of Water Quality, the US
Army Corps of Engineers and the City of Raleigh is a significant task. This property presents
some noteworthy challenges because the property is divided into three large upland segments by
the 26 acre lake and two perennial streams. Additionally, five other streams extend into the
property that includes jurisdictional wetlands, streams and Neuse River Buffers.
Because the major stream features pass completely through the property, it is impossible to avoid
them entirely, and it is understood there will be some minimal impacts necessary for the applicant
to gain access to the different portions of the property. The development plan does this by
minimizing the number of stream crossings and where crossings are necessary, the roadways are
positioned as low as possible to avoid side-slope fill impacts. On the eastern portion of the
property, where numerous tributaries encroach into upland areas, roads are designed to skirt the
ends of the tributaries, impacting only the upper ephemeral stream areas. In order to avoid
potential future impacts to wetlands, streams and stream buffers by future individual landowners,
the lot layout and design avoids encroachment into Neuse River Buffer areas. Project
construction will adhere to strict sedimentation and erosion control measures as described in the
project sedimentation and erosion control plan (attached with NCDWQ application copies).
The basic project purpose cannot be practically accomplished in a manner that would better
minimize disturbance, preserve aquatic life and habitat, and protect water quality, the use cannot
practically be reduced in size or density, reconfigured or redesigned to better minimize
disturbance, preserve aquatic life and habitat, and protect water quality, and, best management
practices will be used, where necessary, to minimize disturbance, preserve aquatic life and
habitat, and protect water quality. Best management practices may include engineered measures
related to sedimentation and erosion control and stormwater retention, as may be required
XI. Storniwater (DWQ Only)
Acres Item Total %
202.7 Property Area by Survey 100
26.4 Lake Area
70.5 Proposed Impervious (roof tops, roads, sidewalks, etc.) 435
0.25 Presently Impervious (estimated)
2 of 2
The engineer is preparing a stormwater plan for the City of Raleigh. This should be completed
and available for review prior to November 15, 2001. The engineer has conducted preliminary
calculations regarding nitrogen loading rates and provided these to the City of Raleigh. Please
see the attached letter (NCDWQ application copies only) regarding this.
v
3 of 3
Pulte Home
Corporation
Long
Lake Project
PROJECT LOCATION
1
C, ,.r l
FIGURE 1
SITE LOCATION MAP
SOURCE: USGS 7-1/2 MINUTE QUADRANGLE
BAYLEAF, NC o x=3 r =
(NOT TO SCALE)
2216 DOBBIN PLACE op?icE: (a1a) 231.4400
RALEIGH, NC 27004 FAX,- (91W 231.1311
E-MAIL: nppscoamindsprlnp.oorn
NEXT--L DIRECT CONNffCT.• 1612
low
( IN FEcr )
Inch = 400
LONG LAKE SUBDIVISON
OVERALL WACT MAP
RAMM NORM CAROM
IMPACT SUMMARY
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\ NRB ZONE 2 0 SF
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CHANNEL 0 LF
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NEUSE RNER BUFFER
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LONG LAMB SUBDIOISON Designer Scale CAD File
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IMPACT SUMMARY

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MJWV/RONMENTAL =d2MAW ILTANTSANO /WERM/T SPQC/AL/aT.tr
2216 00BB1N PLACE OFF/CE: [phone]
RALEIGH, NC 27604 FAX (a 19) Y31. f311
AE-MA/L: nypaul(CDmindapdnp.corn
NEXTEL O/RECr CONNECT.- 1612
October 18, 2001
Division of Water Quality
401 Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
Subject: Long Lake Project
Raleigh, Wake County, North Carolina
Gentlemen,
This letter is to notify you the proposed project, indicated above and described in the attached application,
is under consideration by the U.S. Army Corps of Engineers, Nationwide Permit authorization. This
application is being provided for your review under 401 Water Quality Certification and Neuse River
Buffer rules.
Thank you for your assistance and please feel free to call me at [phone] if you have any questions
or if there is any deficiency.
Cordially yours,
ECPS, Inc.
4k4v
Nelson G. Paul, PWS
General Manager/Land Use Consultant
RECEIPT OF DELIVERY
Accepted by:
Title:
Company.
Date:
? s r
ENV/RONMENTAL CONS(!L TANTS A/VO PERM/T SPEC/AL/STS
2216 DOBBIN PLACE OFF/CE: 0610) 23-1.4409
RALEIGH, NC 27604 FAX: [phone]
E-MAIL: n8pau1(CDrn1ndaprinp.com
NEXTEL DIRECT CONNECT.• 1612
October 18, 2001
Raleigh Regulatory Field Office
US Army Corps Of Engineers
6508 Falls of the Neuse Road, Suite 120
Raleigh, NC 27615
Subject: Long Lake Project
Raleigh, Wake County, North Carolina
Gentlemen,
This letter is submit the attached Nationwide Permit application for the above-meartioned project.
Additionally, application has also been provided to the State of North Carolina, Division of Water Quality
for consideration under 401 General Certification and Neuse River Buffer rules.
Thank you for your assistance and please feed free to call me at [phone] if you have any questions
or if there is any deficiency.
Cordially yours,
ECPS, Inc.
41v-?4-P4
Nelson G. Paul, PWS
General Manager/Land Use Consultant

BNV1R43PNAFAff,0V7,AL CONSULTANTS AND PLRM/T &PWC/AL/aTi
2216 DOBBIN PLACE OFF/CE: (9!D) 231.4406
RALEIGH, NC 27604 FAX. re 10) 231.1311
E-MAIL: nppeu14Mm1ndaprln8.com
NEXTEL DIRECT CONNECT.- 1612
October 18, 2001
National Marine Fisheries Service
Habitat Conservation Division
Pivers Island
Beaufort, North Carolina 28516
State Historic Preservation Office
N.C. Division of Archives and History
4617 Mail Service Carter
Raleigh, North Carolina 27699-4617
Subject: Long Lake Project
Raleigh, Wake County, North Carolina
Gentlemen,
This letter is to notify you the proposers project, indicated above and described in the attached application,
is under consideration by the U. S. Army Corps of Engineers, Nationwide Permit authorization.
Additionally, the State of North Carolina, Division of Water Quality is considering this project under 401
General Certification and Neuse River Buffer rules. Please review this project for impacts relative to the
specific area of expertise for which your agency is responsible.
Please provide me with any comments your office may have regarding this project. Thank you for your
assistance and please feel free to call me at [phone] if you have any questions.
Cordially yours,
ECPS, Inc.
Nelson G. Paul, PWS
General Manager/Land Use Consultant
JUN,13.2001 2:48PM PULTE HOME CORP

To: A)e 1 c.. _ (•
NO. 5781 P, 1
401 Harrison Oaks Blvd, SUITF 250
Cary, North Carolina 27513
Phone: [phone]
Fax: [phone]
Fax: -23 / _ 12 /
Company: CX-
Is 7 Phone: 3 / yY
Fromil // Date: !f A
Re: Coil Pages; - Including cover
COMMENTS
V

The information contained in this facsimile is confidential and may also be subject to the attorney client privilege or may constitute
privileged work product. The information is Intended Only for the use of the individual or entity to whom It Is aodressod. If you are
not the intended recipient, or the agent or employee responsible to deliver it to the intended recipient, you are hereby notified that
any use, dissemination, distribution or copying of this communication is strictly prohibited. If you have received this facsimile in
error, please immediately nolify us by telephone, and return the original message to us at the adores$ above via the U.S. Postal
Service Thank you.
?rrpg.;
It f L-
Alrow /faNA?/rTAL dOMSNL rAAMW AJNM /WMMrJ ' *ffl%rV&9"4FT t
?ZI6 D0"PV PLACE OI=I:Ice. rwty) 231.4400
RALEI&H. NG 2r604 /'AX.• (019) 231.1*11
E-MAIL. #VpauA®.nMrdMplnp. eom
NexrEL DIRECT COIVNECr: 1612
AGENT A[1THORUATION
I hereby authorize ECPS, Inc. to act as my agent with the US Army Corps of Engineers
and/or the NC Division of Water Quality in regards to the Property / Project, indicated
below, for the purposes of malting wetland and/or stream assessments, performing
wetland and/or stream delineations, and/or subamtting permit applications.
Property / Project: Price - Parsons Tract (Loo & L?kE
Property Location: Pioeerest Road and Glenwood Avenue
Owner /
Contracted Purchaser: Gray Methven, Puke Houies
Mauling Address: 400 Harrison Oaks Boulevard, Suite 250
Cary, Noah Carolina 27513
Telephone: [phone]
Facsimile: (919)67-/-0934
Signature: s? J
Date: 3 ' 42/
r??
MEMORANDUM
TO: John Dorney Regional Contact: Steve Mitchell
Non-Discharge Branch WQ Supervisor: Ken Schuster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Long Lake Project c/o Pulte Homes
Project Number 01 1549
Recvd From APP
Received Date 10/22/01 Recvd By Region
Project Type residential
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req. ME
F_TT- tream O O F- F7777- r B NSW 7, '1_r F_=-67 F-1r
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/Coed 0 Deny
Provided by Region: Latitude (ddmmss) 355241 Longitude (ddmmss) 784350
Comments:
Is Toscana Drive already constructed from Highway 70 into the dev?
If not, it needs to be moved to the west to get out of the buffer. If it has to remain in its current
configj ray tion, the mitigation is way off.
Do both of the stream/road crossings on Country Trail, sheet 5 and 6 have to be so large? Each is
186 feet. I do not see an alternative anal. If OK
take the $$$$$$ and run. Site looks very well laid out except for excess of threshold values,
cc: Regional Office
Central Office Page Number 1
County WAKE
County2
Region Raleigh

B/V1I/RONMErN7*AL CO NAWALTAN7'a A/VY PERM/y" lIOQC/AL/4FTa
2216 DOBBIN PLACE Ol ?/CE: (9l9) 2a Y.- sOa
RALEIGH, NC 27eO4 FAX. (91W 29 1. 13-f 1
E-JNAIL: ngpauA=m/ndsprfng. cam
NEXTEL DIRECT CONNECT.• 1612
. October 18, 2001
Mr. Steve Mitchell, Environmental Scientist
Division of Water Quality, Raleigh Regional Office
NC Department of Environment and Natural Resources
3800 Barrett Drive, Suite 1-01
Raleigh, North Carolina 27609
Subject Request for-Authorization Certificate
Long Lake Project, Raleigh, Wake County, North Carolina
Applicant: Ptdte Home Corporation
c/o Gray Methven, Director of Land
401 Harrison Oaks Boulevard, Suite 250
Cary; North Carolina 27513
Telephone: [phone] NOV 1 6 2001
Fax: [phone]
tear mr. Niits l;
This letter :is to rem an "Authorization Certificate" in accordance with 15A NCAC 20 .lam (0) of the
Meuse .f filer Basin; Nutrient Sensffive Waters Management Strategy. Protection and Maintena[ce of
ftanan .> of m (herein afterwards referred to as the Neuse River Buffer RtAeS). An appli.CONA for
permits is attached for the proposed project that describes the project location, project development
plans, and impact areas.
The subject property is approximately 200 acres in size.arxi is located within the Neuse River basin. Thep
property is divided by Turkey Creek and has numerous stream segments within the property subject to
the Neuse i'Fver Suffer Rules. Turkey Creek flows from the rxxthwestem
property tine south acxosa the
property ;into a 26 we take. The lake is the mod distinguishing feature of the property and receives flow
from foul- additional tributaries on the east side and one on the west. A riser pipe channels excess water
from the lake through an earthen dam at the southernmost end. From here, Turkey Creek continues
flowing south, receiving input from an additional tributary on the east side prior to exiting the property.
The project purpose is to gain access to large upland areas on the site for residential development (see
W01cati0n). Neuse River Ether areas bound virtually all tributaries on the site and are completely
avoided by the project design on the eastern portion of the property. Turkey Creek divides the property
down the center, isolating the western property portions. An unnamed tributary to the west further
divides the western property segments. With this application, the applicant is proposing to construct an
roadway to cross these tributaries.
The construction of the roadway Is a practical necessity for accessing the site and allowing the safe and
efficlent flow of the resident and non- Wderd traffic. The design considers parameters dictated by sound
engineering, the City of Raleigh and the NC Department of Transportation. The Impacts of the roadway
were Increased by the collector road designation by the City of Ratelgh. This designation required
additional width of pavement, shoulders and therefore, side stops flit.
Page 1 of 2
SUPPLEMENTAL INFORMATION
PACKAGE

Correspondence: All
10/18/01 Letter to Steve Mitchell, NCDWQ from ECPS, Inc. regarding request for
Authorization Certificate.
9/26/01 Letter to Todd Rall, City of Raleigh, from Withers & Ravenel regarding
stormwater management and nitrogen export.
8/6/01 Biological Reconnaissance Form from David Penrose, NCDWQ,
regarding perennial/intermittent stream determination.
6/27/01 Letter to Steve Mitchell, NCDWQ from ECPS, Inc. requesting approval of
Neuse River Buffer Determination.
8/9/01 Letter from Steve Mitchell acknowledging acceptance of Neuse River
Buffer Determination.
6/14/01 Letter to Amanda Jones, USACOE from ECPS, Inc. requesting
jurisdictional determination on site wetland delineation.
6/22/01 Correspondence from Amanda Jones, USACOE, acknowledging
acceptance of the wetland delineation and providing the jurisdictional determination.
Drawings:
(undated) Master Plan, Pulte Homes Corporation, Long Lake Subdivision, Withers
& Ravenel Engineering and Surveying
(undated) Sedimentation & Erosion Control Plan, Long Lake Subdivision, Withers
& Ravenel Engineering and Surveying
6/22/01 Wetland Delineation Map, signed by Amanda Jones, USACOE

tai S T r l is g r og? , 'Y
' Facility Name, Long; Lake Project c/o Pulte Homes
?..
r
'` ?• Pro ect Number ; Ol 1549
Project Type purpose of residential County i NVA KE
z
Location?TTurkey Creek Raleigh County2
Received Fromt11'P COE ID #' Region Raleigh
< Received Date! October 22, 2001 r. , COE Susp Date Reg. Contact Steve Mitchell
lip,
Sent to Region Date 11/20/2001 DCM Susp Date s- )
v? x d'.,
Rcvd Region Date's ?., TIP Number Payment Date 10/2212001
Last Action Date: More Info Requested 11/8/2001 Amount Paid $200.00
Last Action More Info Received Payor Pulte Homes
atitude (ddmmss) 1355241 ?. Mitigation - Check #f 16447
on gitude(ddmmss)' 784350:
,Stream Area Area L " h
(acres)
TWetland; Wetland Score Stream Mass: Subbasin Wetland :(Req - (acres) (f t)
Type Impact Index Prim._ Supp. Class Apprx
s OY ON
O Y ON
W RP Mitigation
Project Wetlanck- Wetland ° Area Length Completion 7ub }-Per - I nter
ypa Number Type acres . (fee n
ent
Class ( ) t) Date nial; mitt
nT

;till'-'-e'%5;
MEMORANDUM
TO: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Long Lake Project c/o Pulte Homes
Project Number 01 1549
Recvd From APP
Received Date 10/22/01 Recvd By Region
Project Type residential
County WAKE
County2
Region Raleigh
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req. ME
44 Stream O Y OO N F- 27
F I D NSW 30,402. F 372.00 F F-
F-1 -OY ON F-1 F__F__F_F__I f-?-
Mitigation Wetland
MitigationType Type Acres Feet
r F__ F_ r
Is Wetland Rating Sheet Attached? O Y ON Did you request more info? O Y ON
Have Project Changes/Conditions Been Discussed With Applicant? O Y O N
Is Mitigation required? O Y O N Recommendation: O Issue *Issue/Cond O Deny
Provided by Region: Latitude (ddmmss) 355241 Longitude (ddmmss) 784350
Comments:
Is Toscana Drive already constructed from Highway 70 into the dev?
If not, it needs to be moved to the west to get out of the buffer. If it has to remain in its current
configuration, the mitigation is way off.
Do both of the stream/road crossings on Country Trail- sheet 5 and 6 have to be so large? Each is
186 feet. I do not see an alternative anal. If OK
take the $$$$$$ and run. Site looks very well laid out except for excess of threshold values.
cc: Regional Office
Central Office Page Number 1
Michael F. Easley
??? w A rFRO -
'O G Governor
William G. Ross,Jr.Secretary
-1c Department of Environment and Natural Resources
Kerr T. Stevens
_ Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
, Wetlands/401 Unit
Location: 2321 Crabtree Boulevard, Suite 250 Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center Raleigh, NC 27699-1650
Contact Information: General 919-733-1786 Fax: [phone]
Fax To:
Compan
From:
Fax Number: 2-27 ?- /3//
Date:
Phone: ?? l 3 ?? L( Ca
No. Of N= es including covzr sheet: S-
Notes or special instructions:

- ki,.? „4.
l
6 T3 fir- tY k y
ai
' 5
.
}

NCDENR
Division of Water Quality 2321 Crabtree Elvd, Ste 250 Raleigh, NC 27604-2260
WaHanrts!401 Unit- (4141 733-.726
Toscana Road project
Subject: Toscana Road project
Date: Fri, 14 Dec 2001 12:13:48 -0600
From: "Jones, Amanda D SAW" <[e-mail]>
To: "[e-mail]"' <[e-mail]>
CC: "'[e-mail]"' <[e-mail]>
John,
Just sending you an e-mail at the request of Nelson Paul (ECPS) to verify that our office will review the Toscana
Road as a separate permit application from the application submitted on Oct. 22 (DWQ project no. 01-1549 in Wake
County).
Thanks,
Amanda
1 of 1 12/14/014:39 PM
Long Lake 011549
j Y
r
Subject: Long Lake 011549
Date: Mon, 10 Dec 2001 14:41:48 -0500
From: Bob Zarzecki <bob.zarzecki @ncmail.net>
Organization: Division of Water Quality; 401 Certification Unit
To: Cyndi Karoly <[e-mail]>
CC: Steve Mitchell <[e-mail]>,
John Hennessy <[e-mail]>, John Dorney <[e-mail]>
Cyndi,
See Mitchell's comments in Filemaker on this project. I told him that I
would pass this on. His main concern is Toscana Drive. He would like
to see better written justification for the need for the placement of
the road (i.e., why can't the road be shifted west to avoid impacts).
Looks like we need to send them an on-hold letter. Let me know if you
need help or would like me to draft it. Thanks.
(Mitchell, let Cyndi know if there is anything else.)
Bob
Bob Zarzecki
NC DENR/DWQ 401 Wetlands Certification Unit .?Q
919-733-9726 ?\ v
C
1 of 1 7C-) (P S LR, (Zc ?`?•? 1Z' 0/O1 2:S?Pb
MEMORANDUM
TO: John Dorney
Non-Discharge Branch
Regional Contact: Steve Mitchell
WO Supervisor: Ken Scbuster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Long Lake Project c/o Pulte Homes County WAKE
Project Number 01 1549 County2
Recvd From APP Region Raleigh
Received Date 10/22/01 Recvd By Region
Project Type residential
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
F14 Stream O YO N I 27-33-2 ?- NSW 30,402. ? 372.00 F_ F-
N$R 1-- O Y O N r__ ?F_F_ r-F__ F-
r
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 0 N
Recommendation: 0 Issue OQ Issue/Coed 0 Deny
Provided by Region: Latitude (ddmmss) 355241 Longitude (ddmmss) 784350
Comments:
Is Toscana Drive already constructed from Highway 70 into the dev?
If not, it needs to be moved to the west to get out of the buffer. If it has to remain in its current
configuration, the mitigation is way off.
Do both of the stream/road crossings on Country Trail, sheet 5 and 6 have to be so large? Each is
186 feet. I do not see an alternative anal. If OK
cc: Regional Office
Central Office Page Number 1
MEMORANDUM
TO: John Dorney Regional Contact: Steve Mitchell
Non-Discharge Branch WQ Supervisor: Ken Schuster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name 'Long Lake Project c/o Pulte Homes
Project Number 11 1549
Recvd From kPP
Received Date 10/22/01 Recvd By Region
Project Type -esidential
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req. ME
rTT'-- tream I` gyp. `7- F__ 777T-T- ? NSW FT= F - F -=- 6u Miticiation n 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 0 N
Provided by Region: Latitude (ddmmss) 355241
Recommendation: 0 Issue 0 Issue/Cond 0 Deny
Longitude (ddmmss) 784350
Comments:
Is Toscana Drive already constructed from H ahway 70 into the dev?
Ylzk 0V\ 4-d
r
County WAKE
County2
Region Raleigh
cc: Regional Office
Central Office Page Number 1
..........
o? .
r'
WITHERS & RAVENEL Engineering & Surveying, Inc.
111 MacKenan Drive, Cary N. C. 27511.919/469-3340 • FAX.- 9191467-6008
September 26, 2001
Mr. Todd Rall
Conservation Inspector
City of Raleigh
PO Box 590
Raleigh, NC 27602
RE: Long Lake Subdivision
WRES Project No. 201113.00
Dear Mr. Rall:
,?
f o ?U?k
In response to your review comments for Long Lake Subdivision, Tracts 1, 2, 5 and the
cluster, we offer the following attached stormwater management calculations with respect
to nitrogen loading. These calculations were completed for the entire 198.54 acre cluster
development., The total amount of nitrogen export is 6.57 pounds per acre without
considering a BMP. Per our previous conversations with Mike Johnson, the existing
Long Lake pond will be used as a wet pond that will serve this entire project. The 25%
removal rates result in a total nitrogen export of 4.92 pounds per acre for this project.
The developer plans to "buy down" the additional 1.32 pounds per acre to. reach the
required 3.6 pounds- per acre limit.
Please advise if you require additional information or have any questions. Thank you for
you assistance with this project.
Sincerely,
WITHERS & RAVENEL
ENGINES T'kiG& SURVEYING, INC.
J le s E. C field, P. E..
JEC/cgb
cc:. Grey Methven, Pulte Homes Corporation
IC101101-110%11131PrgJM601.tr.doc
µ
f

Nitrogen Loading Reduction Table
Method 1
Pulte Property
Type of Land Cover
Undisturbed Open
R/W (100% Imp)
Lots (4 DU/AC)
Area TN export Co
acres Ibs/ac r '
19.9 0.6
26.48 21.2
152.16 4.8
198.54 Total
TN Export Use
Ibs r
11.94
561.38
730.37
1303.68
Efficiency BMP
25% Removal Wet Pond
Total Nitrogen
6.57 Ibs/acre
1.65 Ibs/acre
4.92 Ibs/acre*
Pre BMP
removed
Based on Cluster Plan
* Total Pounds of Nitrogen based on the submitted Cluster Plan.
Additional BMPs may be introduced at the Construction Drawing phase to further reduce the nitrogen loading.
These preliminary calculations are to demostrate that the project will meet the City of Raleigh's stormwater
requirements for nitrogen removal, which will include a payment to the wetlands Restoration Fund in accordance
with the buydown option.
Calculations Neuse River Basin:Model Stormwater Program for Nitrogen Control 8/30/99 (Program)
Based on: Stormwater Design Manual City of Raleigh 8/31/01
Requirements of Programs:
The nutrient load contributed by new development activities is to be held at 3.6 pounds per acre per year.
The total nitrogen loading rate cannot exceed 6 pounds per year for residential development.
Table 2a in Model Stormwater Program details options for reducing 6 Ib/yr to 3.6 Ib/yr and/or paying one
time Impact fee of $33011b.
TN export coefficients set by Programs.
Removal Efficiency set by Programs.
R/W loading from Graph 1
Lot loading from Graph 2
t
ArwMAN7,0v M,wr *rAx adymozrx rAuv7w Aw,& IArAvAr r w~az • •ars
2216 DOBBIN PLAC& QFF/CE: [phone]
RALEIGH, NC 27004 FAX: [phone].
CF-MAIL. nppeuMmIndapdnp.com
NEXTEL DINHCT CONNECT.- 1612
June 27, 2001
Steve Mitchell
NC Department of Environment, Health and Natural Resources
Division of Water Quality, Raleigh Regional Office
3800 Barrett Drive, Suite 101
Raleigh, North Carolina 27609
Subject: Request for Neuse River Buffer Determination
Pulte Homes, Long Lake Project (Price - Parson Tract)
Raleigh, Wake County, North Carolina
Dear Mr. Mitchell,
This letter is to request verification of Neuse River Buffer areas on the above-mentioned
property. Pursuant to this request, the following documents are being transmitted with
this letter.
• Copy of the signed plat from the Corps of Engineers wetland and stream
jurisdictional determination;
• Copy ofthe project site from the USGS 7-1/2 Minute Quadrangle; and
• Copy of the project site from the Wake County Sod Survey.
As you may recall, you visited the site last fall, during which you provided guidance on
how particular areas should be handled in regards to the Neuse River Buffer Regulations.
We are requesting a letter indicating your concurrence with this determination. Should
you wish to meet again onsite to review this determination, or if you have any questions,
please feel free to contact me at [phone].
Cordially yours,
EM Inc.
Nelson Paul, PWS
CC Gary Methven, Puke Homes
400 Harrison Oaks Boulevard, Suite 250
Cary, North Carolina 27513
State of North Carolina
Department of Environment
and Natural Resources
Raleigh Regional Office
Michael F. Easley, Governor
William G. Ross Jr., Secretary
August 9, 2001
Nelson Paul
E C P S
2216 Dobbin Place
Raleigh, N.C. 27604
Subject: Neuse River Basin
Riparian Buffer Rules
Pulte-Price-Parsons Tract
NBRRO 01-196
Wake County
Dear Mr. Paul:

The information that was received by the Raleigh Regional Office on June 29, 2001 has been
reviewed. The plat map and other information was provided to allow a determination to be made
as to whether or not the site would require compliance with the Neuse Buffer Rule. This specific
project is referenced by the Raleigh Regional Office as NBRRO 01-196.
The features represented on the Wake County Soils and the Raleigh West USGS Quad maps were
evaluated to determine their subjectivity to the Neuse Buffer Rule. It was determined that there are
numerous features and a large pond depicted on these maps that are subject to protection under
the Rule. Therefore, the stream features indicated on the plat map of this property are subject to
the Neuse River Basin: Nutrient Sensitive Waters Management Strategy; Protection and
Maintenance of Existing Riparian Areas, Administrative Code T15A:02B.0233 (NCAC 0233).
This letter addresses only the applicability of the Neuse Buffer Rules. For information relative to
the Wetlands 401/404 issues, please contact Mr. John Dorney at 919-733-1786. Thank you for
your attention to this matter and if this Office can be of any assistance or if you have additional
questions, please do not hesitate to contact us.
Sincerely,
Steve Mitchell
Environmental Scientist
cc: RRO/John Dorney
H:\nbrlet.for\nbr01 \pultepri.196
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NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone [phone] FAX [phone]
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coordinate system. 1000-meter Universal Transverse Mercator rid 124 MIL 17J;_
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ticks, zone 17, shown in blue. 1927 North American Datum
To place on the predicted North American Datum 1983 mover,
the projection lines 12 meters south and 23 meters west
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Fine red dashed lines indicate selected fence and field lines where DECLINATION AT CENTER OF SHEET
generally visible on aerial photographs. This information is unchecked Revisions shown in purple and woodland compiled in
There may be private inholdings within the boundaries of cooperation with State of North Carolina agencies from
the State or National reservations shown on this map aerial photographs taken 1984 and other sources. This
Purple tint indicates extension of urban areas information not field checked. Map edited 1987
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Biological Reconnaissance Form #
BIOLOGICAL RECONNAISANCE FORM
Perennial/Intermittent Point
Send to Dave Penrose
401/Wetlands Unit, Division of Water Quality
1650 Mail Services Center
Raleigh, North Carolina 27699-1621
e-mail Dave.Penrose(a)NCmail.net, FAX [phone]
a) Location Long Lake, Nelson Paul
Stream Name: UT Turkey Creek Receiving Waterbody: UT Turkey Creek
Location/Road Hwy 70 County. Wake Date:_ 6 August Regional Office: RRO
Basin: Neuse Subbasin: 02 Latitude/Longitude: 355241,784350 (approx)
Pcoregion: Piedmont
1 .1 Rosgen Class:
Observers: DP, Nelson
Paul
USGS Quad Sheet: Bayleaf
Notes (attach photograph or drawing on the buck of this form):'
Upstream sections of this stream have been impacted by an appartment complex, but there was good flow well past the
property in question.
b) Habitat
Primary Adjacent Land Use: Forest and commercial 'Riparian Zone Characteristics:
Stream Width: one foot Flow Conditions: perennial Stream Order first
Stream Permanence Characteristics, Rating (if relevant):? Very good bed and bank characteristics with large cobble
dominating the substrate. Much of this material was covered with Podostemum-like algae. Lots of iron-bacteria at the
most upstream location near M-1 2 (Nelson Paul's location). perennial at this location. Also, we did look at another
location at the northern part of the project This stream (.i) was dryall'the way to the lake.
c) Biology
Benthic Macroinvertebrate Taxa: Sialis (Megaloptera) at M-12, Hydropsychidae at M-6
Amphipoda: ? Isopoda: ? Decapoda: ? Chironomidae X Oligochaeta: ? Mollusca: ?
Ephemeroptera: ? Plecoptera: ? Trichoptera ? Coleoptera: ? Other Diptera: X
Fish and Salamander Taxa: Salamanders were collected at M-12.
Other Observations (i.e. Presence of Iron Oxidizing Bacteria):.
Obvious at M-12 and above

U.S. ARMY CORPS OF ENGINEERS
Wilmington District
Action ID: 200120974
Property
Owner Grav Methven
NOTIFICATION OF JURISDICTIONAL DETERMINATION
X
c/o Pulte Homes '
Address 400 Harrison Oaks Blvd., Suite 250
Cary, NC 27513
Telephone Number 919-677-2729
COPY
County: Wake
Authorized
Agent ECPS, Inc.
Attn: Nelson Paul
Address 2216 Dobbin Place
Raleigh, NC 27604
Telephone Number 919-231-4409
Size and Location of Property (waterbody, Highway name/number, town, etc.): The property known
as "Long Lake" is bounded to the east by Pinecrest Road and to the south by U.S. Hwy 70 (Glenwood
Avenue), in Raleigh, Wake County, North Carolina.
Basis for Determination: The site contains wetlands, stream channels, and a lake with indicators of
ordinary high water marks, located adjacent to and including Turkey Creek and its unnamed tributaries,
above headwaters, in the Neuse River Basin.
Indicate Which of the Following Apply:
There are waters of the U.S., to include wetlands, on the above described property which we strongly suggest
should be delineated and surveyed. The surveyed wetland lines must be verified by our staff before the Corps will
make a final jurisdictional determination on your property.
Because of the size of your property and our present workload, our identification and delineation of your wetlands
cannot be accomplished in a timely manner. You may wish to obtain a consultant to obtain a more timely
delineation of the wetlands. Once the consultant has flagged a wetland line on the property, Corps staff will
review it, and, if it is accurate, we strongly recommend that you have the line surveyed for final approval by the
Corps. The Corps will not make a final jurisdictional determination on your property without an approved survey.
The waters of the U.S., to include wetlands, on your lot have been delineated, and the limits of the Corps
jurisdiction have been explained to you. Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
There are no waters of the U.S., to include wetlands, present on the above described property which are subject to
the permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law
or our published regulations, this determination may be relied upon for a period not to exceed five years from the
date of this notification.
Placement of dredged or fill material in wetlands on this property without a Department of the
Army Permit is in most cases a violation of Section 301 of the Clean Water Act (33 USC 1311). A
permit is not required for work on the property restricted entirely to existing high ground. If you
have any questions regarding the Corps of Engineers regulatory program, please contact
Amanda D. Jones at telephone number (919) 876 - 8441 extension 30
Project Manager Signature-
Date June 22, 2001
Expirat
June 22, 2006
SURVEY PLAT OR FIELD SKETCH OF THE DESCRIBED PROPERTY AND THE WETLAND
DELINEATION FORM MUST BE ATTACHED TO THE YELLOW (FILE) COPY OF THIS FORM.
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlanas Delineation Manual)
ProiecvSite:
Applicant/Owner:
Investigator: EG
Do Normal Circumstances exist on the site?
Is the site significantly disturbed (Atypical Situation)? Yes
Is the area a potential Problem Area? Yes
(If needed, explain on reverse.)
1."a f'?(f? i If Q.
CtiT-cj v (art ?aoo?e?I
Date: -L
County:
State:
Community 10•
Transect 10:
Plot 10:
VEGETATION
Oorrnnant Plant Spoons Stratum indicator
1. arG..S ?n at t of T ?Yf?Gt.?
2. Lalt.•dao..?se1r'• 4 -r" 4 F -A C-
3. D Care?:.a:4.a SS F'aG
4. :.1as••cr .XLA Ge_ VrAC?
5. _ fail, %+4 O -A A& • _L?L__ C)Q L
114
Mot. VA,
7.
a.
OOm)nsnt Plant Species Stratum Indicator
9.
10 -
11.
1 Z. ??
13.
14,
15.
16.
Percent of Oon-4nant Spoons that ere 013L. FACW or FAC
(excluding FAC-). I Do I
Remarks: 4%A%-*&c* ;!t- twtOa"? OOdie.t
L? 0IP cam. 5
HYDROLOGY
[-?elo Recorded Oats (Oesenbe in Remams):
Stream, Lake, or Tide Gauge
_ Aerial Photographs
Other
I Recorded Oats Available Wetland Hydrology Indicators:
Primary Indicators:
ndeted
atureted in Upper 12 Inches
Water Marks
Drift Lines
I
fI Fe1d Observations: = Sediment Deposits
Orainsge Patterns in Wetlands

Death of Surface Water: (in.) Secondary Indicators (2 or more required):
_ Oxidized Root Channels in Upper 12 Inches

Oeoth to Free Water in Pit: vin.) _ Water-Stained Leaves
_ Local Soil Survey Oats
?.
Ceptn to Saturated Soil: d ?Z vin,) FAC•Neutral Test
, Other (Explain in Remants)
r.
Remencs: (O•JQ L-w dArv I Ol ?GrGt

I
,
a ?a. , •
Cie,t liaS err

SOILS
Mop Unit Narno
(Series and Phosal: a1?o.JQ? : •:?!'i?• tMG)O no" Class:
Fi Observations -
Taxonomy ISubgrouoi: Confirm Maoooa Typal Yes No
Profile Descrivtion:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(inches) Horizon (Wrised L*Apag- (Munsed Moist) Abundsnca/Conttsst Structure. etc.
Hvdnc Soil Indicators:
_ Histosoi _ Concretions
Hrado Epipedon High Organic Content in Surface Layer in Sandy Soils
SuMidic Odor _ Organic Streaking in Sandy Soils
Aquila - quoting Co" Regime _ Listed on Local HWdo Soils List
listed on National Hydric Soils List
_ Gloved or Lovr{hrormo Colors _ Other (Explain in Remarks)
Remarks: It'iGI`?'i?e>.•IS 4+-d... `t'b r'M?p1•?. i V
?oc k: ?r?¢.css ?.?'f' moo:l?lr cr-:?a-r:4 b Rca.?:i.rq
WETLAND DETERMINATION
Hydrophytic Vegetation Present? No (Circle) (Circle)
Wedend Hydrology Present? No
Hydric Soils Present? sa No Is this Sampling Point Within a Wedand? No
Remarks:
Aaorovea tiv n
3-4
DATA FORM
ROUTINE WETLAND DETERMINATION
0 987 COE Wetlands Delineation Manual)

Project/Site: t,: • r&r-:o..K -its dC ?rON ? ? Date: d Op
ApplicanvOwm. e. QN County: o
Investigator: o .w State: --
Oa Normal Circumstances exist on the site) es No Community 10:
Is the site siw0ficandy disturbed (Atypical Situation)? Yes ® Transact (O:
Is the area a potential Problem Area? Yeso Plot 10:
(if needed, explain on reverse.)
VEGETATION
Dominant Plant Soactes Strout
'r Indicator
rkowj Dominant Plant Soeties Strattutt indicator
9.

z. Pte4e- t; tit l.e?.. e•... T.'K
IrAC- -
10.
3. L: T??:c?aw. ?i?r ?t.. ? VAM, t t .
_
s.atWad:el.+:a 4.-gAa1 ft k VJACAJ 13.
e.?: tr t2 4ta•. t??/ ? 14.
7. is.
1 8. 18.

Percent of Oomtnant Species that are Oet. FACW or FAC
(excluding FAC-1. ?/
1 00 /0
Remarks:
HYDROLOGY
Recorded Oats (Desenbo in Remems): Wetland Hydrology Indicators:
Stream. Lake, or Tide Gauge
r Primary Indicators.
Aerial Photographs
Other rated
Saturated in Upper 12 Inches
?r No Recorded Oats Available Water Marks
Orift Lino
_ Sedima+t Deposits
Field Observations: _ Drainage Patterns in Wetlands
Secondary indicators 42 or more requitedl:
000th of Surface Water. (in.) Oxidized Root Channels in upper 12 Inches

Oeotn to Free Water in Pit: Z' din.) Water-Stained Leaves
Local Soil Survey Oats
FAC-Neutral Test
Ceptn to Saturated Soil- (in.) _ Other (Explain in Ftemants)
` Aem.nt:: ?t'l.o. ? ? loe.•o?'f'e.e? : ••j IC1 ka. l?e.ad vJp?dR"'t . W ??"
•F'r"%,Q*Ztt,, bACks .,.e -1-o sa+u,-?-{-a. ac-e.a? .
'I_;

SOILS
Map Urxt Nantes
-
a 1 Q
%e
Ph
C
(S
i
'1'5
-
ue). :
+
-.-
-
es and
er 6
• Oninage Class:
Feld Observations
Texonorrrv (Subgroup): : vJ ?C. 'lf ? Confirm Msoped Tvpe? es No
PMf"Q Oesetiotion:
Depth Matrix Color Mottle Colon Mottle Texture. Concretions.
inches Horizon (Munsea Moist) (Munsad Moistl Abundsnce/Contrest Structure. etc.
O- L'' ? ! o Y R3 L Sa,Jd? l ??
10 yat -4 /%,
I L'r - G o Y A T I 1 o Y R 4 G gr: ti't' rrH4 ma c, t?a.M
Hydric Soil Indicators:
Histesd _ Concretions
_ H isda Epipedon _ High Orputic Content in Surface Laver in Sandy Soils
_ Sulfidie Odor Organic Streaking in Sandy Soils
quia Mdimte Regime Listed on Local Hydric Sons List
^
adueieq Conditions _
Listed on Nationd Hydrie Soils List
Guyed of Low-Chrome Colors _ Other (Explain in Remarks)
Remarks:
WETLAND DETERMINATION
Hydrophytia Vegetation Present? No (Circle) (Circle)
Wetland Hydrology Present? No
Hydrie Soils Present? es No Is this Sampling Point Within a Wedend? CS) No
Remarks:
Acorovea ov h U Z-92
3-y
DATA FORM
ROUTINE WETLAND DETERMINATION
(1487 COE Wedanos.Delineation ManuaU
ProjecvSke: ?: . ?? tb &*, Gory La.L, _% [Coun
ats: 1
ApphcanvOwner: fG+ ty
;
Investigator. tate:
Oo Normal Circumstances exist on the site? G) No Community 10:
Is the site significantly disturbed (Atypical Situationi7 Yes Transect 10:
Is the area a potential Problem Area? Yes Plot 10:
(If needed. explain on reverse.)
VEGETATION
Dw" ant Plant Spek:les -_ Stream I_icator
-l'- -'
Ja t ? r e,r ?! L7Qr l.. Oarnment Plant Species Stratum Indicator

9.

i.
?

10.
'
3. u?l ur4 o.F.
?;
a. 4S C4 r.•N.?t 6?G C APL.
r7Jat kj QC 09L 11.
12-
s .
aw4
om-laGC oi5
13.
e. oN?+w.
bbd-
14-
7. is.
I e• 16.

Percent of Oorrrnent Spaces that are OSL. FACW or PAC
(excluding FAC-).
00'/cx
Remarks: V-1 wT ti : (t/S C Qs?? '
-fib Ca k:
5 TOr CY9 40? i Gs A ?? r? r? i`?'a,,,Q?
HYDROLOGY
7Recorded Osta (Describe in Remarks):
Sa•am, Lak•, or Tide Gaup•
Aerial Photographs
Other
_ No Recorded Oats Available Wetland Hyd py Indicators:
Primary 1 -catora:
In ndsted
Saturated in upper 12 inches
Water Make
Orift Lin"
Sediment Oeoosits
Feld Observations: Orain•g• Panama in Wetlands
?- (LO
Oeoth of Surface Water. fin., Secondary Indicators l2 or more required):
Oxidized Root ChannNa in Upper 12 Inches
_ Water-Stained Leaves
Osotn to Free Water in Pit: !in.) Local Soil Survey Oats
PAC-Neutral Test
Ceptn to Saturated Sod: fin.) Other (Explain in Remarks)
Remarks: ~ rQ.Ori k ,-1kA/VtLO-t" ?p kMQN &Vit
:
.J?7Cpdsr4
•?

?-i

SOILS
Map Unit Name
?O f JQ. `? ? t
'
(Sein
s *no Ph
)
X
e
ase
: rai ass:

Taxonomy (Subgrouo?: Fi Observations
Confirm Mapped Type? Yes No

Profile Osecriotion:
Depth Matrix Color Mottle Colon
(inches) Horizon (Mussed Moist? (Mussed Moist) Mottle Texture, Concretions.
Abunaence/Contrst Structur
e, etc.
Hydric Soil Indicators:
?ftstosol _ Concretions
Hl"a _ Epipedon High Organic Content in Surface Layer in Sandy Sods
_ Sul idio Odor _._. Organic Streaking in Sandy Soils
Aqui, Moisture Regime _ Wted on Local Hydric Soils List
Reducing Conditions _ Listed on Mad*" Hydrie Sods List
_ Gieyed or Low-Chrome Colors , Other (Explain in Remarks)
Remarks: Aevo-S W% &A+
??d?:??
?jOL ?
G?':?:a ?t.
1
-
WETLAND DETERMINATION
Hydrophydo Vegetation Present? No (Circle) (Circle)
Wetland Hydrology Present? No
Hydric Soils Present? s No Is this Sampling Point Within a Wetland? Yes No
Remarks: -M : s 04-a "a : N C,I (Ad K to It co C-4-4% -S LOC., +t-AL
tJ w L_ Cr'P' +tm f 4.4C .mot t a `t as cA of 2l w?..?J a.c?
Ancrovea ow
3-4
DATA FORM
ROUTINE WETLAND DETERMINATION
0 997 COE Wetlancs Delineation Manual)
LA Vats
`1 t -Ca
rj" rr •Z ` Z•3
PrciertlSite: -1rfisgo..? r-m ti't' GoN "JC&\ Date, O op?
ApplicanVOwner t. Q.r County: o
Investigator. o u State:
Dc Normal Circumstances exist on the site? Q No Community 10:
Is the site signifh ndy disturbed (Atypical Situation)? Yes Transact 10:
Is the area a potential Problem Area? Yes MG) Plot 10:
(If needed. explain on reverse.)
VEGETATION
00minsm Plant Species
1- At +r.ALr...r. Stratum 1 'estor Oonsnnt Mont Species_ Stratum I ar
C.a ca•P: 7^S Gt
z.fl d d cxr+6. ism W.
3. l G^ 11.
NA
4. ?.+?y?S i ie? O _ CA to
? 17-
1
S.L:C..:do?oefr' Stti. .r
?
` 13.
a. C.-or e"4 -Roil d4 -Sd5 FAC 14.
7. ?t t Q?:Fe%:4
^ VS ? 1S.
&0-L J: h39Cs Q '05 VGA. -
! 8 ? 18.

Percent of Oomnam Species that are OBL. FACW or FAC
(exeludinq FAC-1.
`f..T%
Remems:
HYDROLOGY
Recorded Oats (Oescnbe in Remer"I:
_ Stream, Lake, at Tido Gauge
Aeriel Photographs
C=r
_ No Recorded Oats Available Wetland Hydrology Indicators: (140.44)
Primary Indicators:
_ Inundated
_ Saturated in Upper 12 Inches
_ Water Marks
_ Orin Lines

r _ SedknanDeposits
Opja+,
Field Observations: tr _ Orainage Patterns in Wetlands
Secondary Indicators 12 or more required):
Oeoth of Surface Water. O"zod Root Channels in Upper 12 Inches
_ Water-Stained Leaves
Oeoth to Free Water in Pit- (in.) _ Local Soil Survey Oats
_ FAC-Neutral Test
Ceptn to Ssturstaa Sail: (in.) _ Other (Explain in Remarxs)
Ramants:
1_:
r LA I4P-Sck
y PGA i)
,dear Z• 2.'S
SOILS
(Se Urwc Nam. ? . r L4&4 ? ?
(Series and Phase): 0 . r s
Drainage pus:
+-- Field Observations
Taxonomy (Subgrouoi: ..e. , ... ail a t , 3 Conftnrt Macoad Type? es No
ProfNe 0eseriotion:
Depth Matrix Color Mottle Colons Mattis Texture, Concretions,
inches Horizon LMunssd Moist? (Munseil Moist! Abundance/Contrast Structure, eta.

Hydric Soil Indicators:
_ Histosol _ Concretions
_ Hisdo Epipedon _ High Organic Content in Surface Layer in Sandy Soils
_ SulfWio Odor _ Organic Streaking in Sandy Soils
Aquae (Moisture Regime Listed on local Hydrie Soils List
r
Reducing Conditions _
listed an National Hydric Soils List
_ Gloved or Low-Chroma Colon _ Other (Explain in Remarks)
R.rt+arla: Ar*a "-s ?,O.?y ?pQl?-nl ; ar4S ty ???'

WETLAND DETERMINATION
HYdroph"c Vegetation Present?
Wetland Hydrology Present?
HYdrie Soils Present?
Yes (Circle)
Yes
yes o Is this Sampling Point Within a Wedand?
(Circle)
Yes 0
Rernarks:
ov
3-4

Applicant: Gray Methven c/o of Pulte Homes File Number: 200120974 Date: 06-22-01
Attached is: See Section below
INITIAL PROFFERED PERMIT (Standard Permit or Letter of permission) A
PROFFERED PERMIT (Standard Permit or Letter of permission) B
PERMIT DENIAL C
X APPROVED JURISDICTIONAL DETERMINATION D
PRELIMINARY JURISDICTIONAL DETERMINATION E
A: INITIAL PROFFERED PERMIT: You may accept or object to the permit.
• ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your
signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights
to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that
the permit be modified accordingly. You must complete Section II of this form and return the form to the district engineer.
Your objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right
to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a)
modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify
the permit having determined that the permit should be issued as previously written. After evaluating your objections, the
district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below.
B: PROFFERED PERMIT: You may accept or appeal the permit
• ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your
signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights
to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terns and conditions therein, you
may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this
form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the
date of this notice.
C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process
by completing Section II of this form and sending the form to the division engineer. This form must be received by the division
engineer within 60 days of the date of this notice.
D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or
provide new information.
• ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the
date of this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD.
• APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative
Appeal Process by completing Section 11 of this form and sending the form to the division engineer. This form must be received
by the division engineer within 60 days of the date of this notice.
E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps
regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an
approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may
provide new information for further consideration by the Corps to reevaluate the .ID.
REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an
initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons
or objections are addressed in the administrative record.)
ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the
record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to
clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However,
you may provide additional information to clarify the location of information that is already in the administrative record.
If you have questions regarding this deci?
process you may contact:
Mr. Todd Tugwell, Regulatory Specialist
Raleigh Regulatory Field Office
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
it you omy nave questions regaramg the appeal process you may
also contact:
Mr. Arthur Middleton, Administrative Appeal Review Officer
CESAD-ET-CO-R
U.S. Army Corps of Engineers, South Atlantic Division
60 Forsyth Street, Room 9M15
Atlanta, Georgia 30303-8801
RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government
consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day
notice of any site investigation, and will have the opportunity to participate in all site investigations.
Date: Telephone number:
Signature of appellant or agent.
DIVISION ENGINEER:
Commander
U.S. Army Engineer Division, South Atlantic
60 Forsyth Street, Room 9M15
Atlanta, Georgia 30303-3490
ENV/RO/VMC/VTAL COMANWX TANTS ANO PFRM/T SPEC/AL/aT8
2216 DOBBIN PLACE
RALEIGH, NC 27604
OFF/CE: [phone]
FAX.- [phone]
E-MAIL: nppeul(CDm/ndspr/np.com
NEXT-=L OIRECT CONNECT.- 1612
June 14, 2001
Amanda Jones
US Army Corps of Engineers
Raleigh Regulatory Office
6508 Falls of the Neuse Road, Suite 120
Raleigh, North Carolina 27615
Subject: Request for Jurisdictional Determination
Pulte Homes, Price - Parson Property
Raleigh, Wake County, North Carolina
Dear Ms. Jones,
F???.epRr
This letter is to request a jurisdictional determination on the above-mentioned property.
Pursuant to this request, the following documents are being transmitted with this letter:
• One mylar original survey of the wetlands and streams;
• Three prints of the original survey;
• One CD of.dxf and.dwg drawings;
• Signed Agent Authorization form; and
• Wetland documentation forms.
Should you wish to meet onsite to review this determination, please feel free to contact
me at [phone].
Cordially yours,
ECPS, Inc.
Ne n Paul, PW S
CC Gary Methven, Pulte Homes
400 Harrison Oaks Boulevard, Suite 250
Cary, North Carolina 27513
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PRUDENTIAL INSURANCE
CO. OF AMERICA
PIN# 0787.13-03-1905
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NORTH CAROLINA DEPARTMENT
Vendor Number 42NCD1018
Check Number 0000016447
Check Date 10/18/01
Invoice Date Co Lot Lot Address Opt Acct
Cat Acct Cat Description Amount
WETLAND PERMIT 10/18/01 1438 00099 00001 10220 Impact/Proffers Fees 1 200.00+
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~9 I i PHASE I: 51
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~R~YCT lA ~ TRACT 2 - 21' TOWNHOMES
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~ I ~ ~ # OF LOTS: 49
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Designer Scale CAD File
Revisions 1"=150' WT_NEW
No. Descri tion Dote B i Drown By Date Sheet No.
En ineerin & Surve in ,Inc. 9 9 Y9 MED 6 11 O1
! ! 1 MxKENAN DRIVE CARP, NORTH CAROLINA 17511 Checked 8y Job No.
cor+sun~p~ (919} 469-3340, FAX [phone]) of ~ MED 200175

r _ _ _ _ _ _ ........r _ _ _ -r
SECTION TLSiU BERN k FILTT:R
c+aAY alwrw ua tt0a ar SIWNAY
50 ANN.
~ q~ ~ ~p t. PUT SILT FENCE OR TREE PROlEC110N FEItlR: UP SEDIMENT ON SITE TO ENSURE CONSTRUCAON ENTRANCE LS USED,
Y at#t f1ltfAl01A0 tr YAY. l1~..u YAaIANL A4 OY iNE FIIQlNrEA ~ . ~y",.~1Alt>w'i"a<<~tiq?~x', s. IF coNSnwcnaN oN THE ssiES ARE sual TNAT
•.I.• F .t.? anaw .~~ptp+~,~t'fi.N`.J.r~;?~;"',r~e„".yaps 1HE MUD LS tit REMOVED BY TIIE VONtAE 1RAVEt-
Ylal •t~, `~'~:s~-~~~sTdNE m"sE usEO'~~'N ~s~ r~ wIOTN o~ ~s ~ ~r TM army tN~ E%ISTIPNi ; , fi 810NE.OR,RAN.ROADtiti, pRCpCSEp STREET, P~ gyp,
IR1.12^I/ZOA, u~°i~ ROADWAY , ~ w'~"~'~i~ WHICIIEVETt ~ IK ~ r ~F.,~; ti,1y GREATER. ~ A PROJECT CGNTW~ues To PULL MUD AND DEBRIS
• ~ ~ . • • ~ ' 6 YASIEO Slaw: lai tMAES wlreB t'~"' ~,+t1's;"'~'~ 94,~`~"~ 'ti`~'~i~ ON TO THE PUBLIC ROAD. 'R~ GOVERNW3 AUTNCtgTY ,'~r~4 • F'A;~~ "y;!i''1 •~il~h`~. WILL CLEAN TiN: AREA AND NVYOIC$1He PBWIpALLY
r At~p16 ~'~r''n~'c~'~:''~'~''~u..~.+oM''~"'f~~ RESPCN518tE PER90N A51NDtClUEO ON'Blf f1NlUtgAA.
aaoE ~5POIi5O4.ITY FORM,
i i
SECTION TNRU BASIN k FILTER ,
cAwnr a%rw tr 7
to acvAnoa a SigMYAldt sloes ar SPlLLYAY
s~ xami FROND tar ai oaat rs YAateO ~ 35' MBL 15' MNi. IOW CCNSTRtICTION
vaeala+00 Npa snce. r'ast EMI~IING ROADWAY
~Ya~ r rtm0 stoaACC ta+a raYat was vAeaO ,...~,,,i ip~•4s 1
„It, att mice aoiaac i~eao t sa>waa sroaa; >;otalorw, sASat WAgYY) ~ ~ r ..n~•~ ' a• 4,~1."h'r"I':.°.\° •~w;:rgt.i,w'~"L~Cp.~. ~1,~., MIN.
I,Y It#Y. SLOaO1T Oath -USE sst mxE aax llttGt ORNNAOE Aa6J1 Rtl, StAP6 I)
N~tEAB a ~TfO~flAwk01k1tlt M • fat R®AYt OY SIT ~ & Ni. U~ i ~
~ Y -aq Of Si,T m10t aFAiB 1G !E lUlaKO UNIt4 ~ ANaiOR q!N lLt ' 4N~DE lM1BCpl4 FABRIC UNDER STONE
1S'IOi ~ f1CM, tLglll V ~ ~ ~ m ,,,w+rr..~,
NAkIMAt liViL D<' itDOUlf ~I+ICLiCh ~ ~ tlMt~ autt >xaat vxow nas ucwl. a auact Z
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N
PERSPECTIVE VIEW
N'
' I tr
rn
t,
44ir,, r arr Of RAtl~p~i arr a: RALEIp!
"qr cENRwc Esc oo?ARTMErrr OtTORAL a~aaa~o DEAARTI#AtTT aAm t aww en ~ aawr an ?AR~NT
GRAVEL do RIP RAP 'tEl~ORARY AMN 8Y= 5 FT
FILTER BAS1N 5U.T FENCE ARY MiN ~ I.S FT
DETAIL Eaoo cu FT a ~
t3TT~# 40.71 8'~# 40.04 M ~ MA% N
1. USE FGR DRAINAGE AREAS NOT EItCEEDMIG 6 (FIVE) ACItE&
. 2. EAATH BERM SHALL. 8E STABIUIED w SEEDNVC FR.TER ACCORDRI4 TO TRUUIOtiE SPECDTCA iABRO
3, USE CLEAN COMPACTCR flLL MATERIAL FOR EARTH BEiMi, OVERNLL 8.
TEMPORARY DIVERSION ARM/ DITCH ~ GN ~ FOR SBIILEAIOIT TflEp
DET1ldTKMI TOP ~ \
A tEMPDRARY 8100E OF COMPACTED SOS, tACA1FA AT THE TOP OR BASE
SIDE VIEW of A SIAPSiC oISTUR6ED AREA. PURPOSES 10 FT INN + t ?s! SIDE
1. TO OfVERT STORM RUNOFF fAOM WCHER DRAUVAOE AREAS AWAY FROM ° SLQPE AU1%
IR~RDIECiLS} SLOPES lO A STABSJZEO OUTtI;T; OR MA f~FNd. ~ ~ i
q e>tot Ob'- ttl 2, TO DIVERT SEO{L#NT-lAOEN RUNOFF FROM A DISTURBED AREA i0 A TsT E SLOPE fABR{C ~ NANRAL
9~IQIT TRAPWNO FAIBLlfY. GROUtRt ...a IT..
~ t wx) CQNDITIONS VMEAE PRACTICE APPLIES # w~a1p sic . i ~ wwES YAiEREVER STORMWATER RISIOFF MUST 8E TE~ORARILY DIVERTED TO PROTECT MIN
~,ir = OIS1Ut~ED SLOPES OR RETAIN SEOSIkTiTS tNl SITE DUISIKi CONSIRUCTKIN.
,:ti.. oatrto woPt J~ 7E~ NANCE
TEMPORARY DIVERSION BERM DITCH rprcor mwawnr stvwalr mgrs u>«R t+al aaaoR a sianawt RdRJYAtL R040K sFaRlfHt AND RtBTpIF RW m R'i arooNA< oRiaalals RIIgi AK lootlplr HAS Iaouwuu?Aa AO are RAV A[ OkSlGll oePRl a ~ Aw. MAOt Ale seoM01T AOAI K RtIIOY[p M
at At? aAP /L MACHINE OOMAACAON OF ALL FlIJ. IS REpUIREO. DIVERSIONS SUFFICIENT 10 DIRECT All SEDMENT- LADEN STORMWATFlt DITO A SEDIMENT CONTROL DENt# MUST ~ StST'ALLED ~ ' A RE11gIAA'A plPOIAt AREA ARO RpiAdS At COIITHYINAkA PART OI AE gsAVIL tl+GM10. gttK AE SIRUCAMIE FOR OAYACE TROY EROSION OR /IAIR PIRpDICALLY ONL'CK Alt DEIAI OF 11E SPIINLY TO tNSitE K it A WMMW
PRIOR 10 CtfARINO dt HOC ~ iNE AREA (OR qa CONdlNCT~N 1BTI1 THIS W ~ ' ~ Oi !A R RROW IIIE URI POM?OF 1NE O19kIN1:NL RR@OIAIEIY Ett AMY RiER0A91T 0111E IINAItI~IT t01110Nl1Y AIOK OtpOY MY ORARL ANY Ili RAP ORilAOS9 RAOY.AR RIILLwAY YOtI' K R8~ NIIIIDIAXI.K
OPERAIONN IE,,~6RiENT CON>i~18 dt OIVERSIOLIS ARE StSTALLED AS EACH CAl11CAl. Poa+r IS ~ACNEO>. STA91IlL Alt tiIW14RI1T Alq AY. OOSANltSO ARtAit AROK Alt StOAIWI POp. AN6 OOYiiIR1AY IRON A[ AW R111pNA1,Y AFRR OON{RNIOR011 RIM SpAt10.
B. DIVERSIONS SHOULD BE lOCA1ED TO IRiD1DrE OAMAQES BY CONSTRUCRON OPERATIONS, C. DIVERSIONS SHOULD BE 9t7~OEO do MUtrgiEO iF THEY A1U: REMAIN W PIJUCf OVER ~
DAYS,
0. CLIEq~ gENCE AFTER EACH RAIN, BUt CNCE A Wfpt REGARDLESS. REPAIR A4 fRONY vLEw
.w...,~.....
NATURAL. tzRLJ18t0 OR Ftll ~ CUT SLIME r ~Lav ~
2TtiN, LOW t>osatlo oafs ~
SLOPES, ~"T"` .
vAwlx 2d NAX(TYPJ IB'NiN, • FOR RET+AIR GF sE.t s YA14 FO1CE FAN1RlES, USE
vAr~lt as otaGaRto ar AK tNONR'#~I ~b1 WASHED STONE,
k oa~,~a ~ acTED FR.I ~ i3PR0 T cAn~l BASIN,
BERN DITCH lrWrwa sla+ Yw, ul~i ati
MHAwLNIIq YM, i10 GA. NN6f UI~'MNK
y~ ~ppW p~ NATURAL GROUND OR FR.L OR CUT SLOPE E'IOK Al
Iy Yp~p sta+L CDIp'ACTI:O F1Ll
ORAOt
!O!L POM
WDNN Ml6 iABAIO
any ~ RAIAp! BERN/ DITCH arr a" au~roH 11.1 ~ atomntt rAtlnec
N, ~ CENiRAi k7V10 OEPARTYENi' PIOtES, ~TIiRAI ~ G~ARTM9~tT b NEK4{T k YADiN OETFiRIiNED BY t1RSiTNO TiOPOptAGNY ~ ,pa POSITIVE GRADE MUST BE APPROVED TO ASSURE DRAINAGE. r oaew+ert ~ARTN9IT
AND SFAd1ElLT 9TORAOE REQUIRED. CHECK ~ SL.IME E%CEEDS 8K. SEED k NW.CN DIVERSION, TRY HOT 10 Y ~ ~ ~ ON,~ rw~w „
Z KEY RIP RAP W10 iNE DAL/ FOR STABUI7ATKiN. DAM EX~ED 5K f NiGH VELOCITIES RESULT> NAXOg01 DA »5 AISLES IEMPORAR WITLDIUT SUPPORTING CALCS, BIVERSIONS AT TILE LOP OF SLOPES DI SlON ~a~Y $ ~oN ~ ~ alAOt
~ NUST EiMTY INTO AN APPROVED SLOPE >!RI?ItL BERM ITCfI w
g~,# ,tpg! BERM/DI1CH IS HOST CONMIMD.Y USED, 81I1 # +10,94 ,~,0 0' Iq4 OC11A TREE 01Ht IIORT • PROTECtION AREA
it • !N txlQlD wRt e• YN Mi0 iRFNOII OD NOT OTTER
~ L ._....l. . ARD ANONOR SlQti AS • _ OMIQDi[O 6Y S1iOtlEtR • ~ xor~ WARNING SIGN DETAI
n i' RRAl1IlO SIGHS Rt OE WAGE OP osauelA tfAARRPROOi' AtA01RrAl. L
z a tL7SD93 f4 ~ 3" AIIH IR'ARAL CtFAII.Y tEtINE Alq S9AOED AS OITAREOt
w w x SNAK4 RNAN. 8[ IIA01» AT Otl HAIiRIW MJIRVAtS ~ PiAOE A SIGi! AiEAON 61G Oi OIA?AR AiIE PROOECROtI AND IO' ON OG1J[R ARRGAfNR,
^USE SILT FENCE Ol0.Y WHEN ORAiNAOE AREA A ~ StIDOA1LY ANR fi RAO?IDt tp ~ AW? pt SIGN FOt PAOIECROM AAOt,
w DOES NOT EfOCEEO 1 ACRE AND NEVER K ~ ~ ~ovaaur oURARpt PAAOCi, AREAS OP 0011CElITRATED FLOW AIOIRIWK SNi18 AAIY R6 R[QYAkb iY p!Y AP RAtERW Y15PlCAGHS OFPARR#DIE BASEO.pi AONAL Ai10 OOIpIROHR
w z PIAGt A Ilif AI tAOH llll OP tNATi1R RlS[ iROR:QAON Alb QO' ON ODIM11 A~IPAimR -ENO OF SILT ETxtcE NEEDS T4 eE TURNEp upINU,.
w STANDARD TEMPORAR S T TREE PR4TECTIDN FE Y !L NCE 1A
w
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F z 1$49$
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- - ~A
S & SurveYTn9, !na No. RQ1i8lO1' oeac LONG LAKE SUBDIVISION WITHERS do RAVENEL En9ineerln g rl~tton Date a N. S CZDW, SEDIMENTATION AND EROSION _ ECh*ck*Wd Scale CAD Re
1 ! i MacKenon Drive Cary , N.C. 27511 _ Date Sheet No.
CONTROL DETAILS
g 919-468-3310 FAX [phone]M RALEIGH WAKE COUNTY NORTH CA NORTH CAROLINA y Job No. of 2 ~ t1

~
¦ ¦
INDEX OF SHEETS
STORM WATER MANAGEMENT PLAN SHT 1
PROPOSED GRADING PLAN SHT 2
EXTENDED WETLANDS - FES 31 SHT 3
EXTENDED DRY DETENTION POND - FES 79B SHT 4
LEVEL SPREADERS SHT 5
~~Y 0~
3
(
_lY
roscuu po.
y~
VICINITY MAP
SCALES 1" - 2000'
LEGEND
~ DESCRIPTION EXISTING PROPOSED ri
2' CONTOUR INTERVAL -
a 10' CONTOUR INTERVAL
PROPERTY LINE - - - - - - - -
~ ROADWAY CENTERLINE - -
y RIGHT OF WAY LIMITS - - - - - - - -
OWNER
b EASEMENT LINE
~~RB & ~~,~ER PREPAR BY
t
~ SANITARY SEWER FACILITIES •
~ STORM SEWER FACILITIES ~ I T ~ ~ ~ S ~A g WATERLINE PULTE HOME CORPORATION
AVEN EL
FIRE HYDRANT ASSEMBLY ~ ~
401 HARRISON OAKS BLVD., SUITE 250
FENCING STRUCTURE -o-o- E N G I N E E R S I P L A N IV E R S I S U R SURVEYORS CARP, NORTH CAROLINA 27513
~ WDODSLINE rl~YWY1 N/A
. rri rounnir. /oiol a~~_ni
ix: 919467-6008 www.withersravenel.com LLLI IIVIYL. 1?1
WATERWAYS - - - - - NSA ~ 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: 9194 SILT FENCING N/A X ~ ~-X
g
s
s

PROP D EXTENDE
i; ~ WETLANDS BASIN 6A i
L L SPREADI OSED EXTENDED PROP , 6 ,E PR . SPREADED r i
OPOSED EXTENDED SEE ET 5 ~ PHASE 6 ; ~ ET 5 ~ .
TLANOS BASIN 2A WE DS BASIN 2A WETLAN ~ PROPOSED EXTENDED
PHASE 5 ~ • \ ~ ~
; PHASE 4 ~ ~ WETLANDS BASIN 68 \ \ io i
\ J ~ ~ PHASE 6 ~ P~
VE UFFER TYP NEUSE RI R B
A
~ ~ 1 ~ ~ i ~ NEUSE RIVER BUFFER TYP
~ _
i \ _
'~a RVINO LANE i~ ~ \ \ -
f i`I i~~ ~ ` ~ ~..~.r... ~ ~ ~ i / ~ ~ ? ~ 1~ " /
~ ~ ~ TENDED DRY ED EX PROPOS / ~ ~
~ r SHAKER HEIGHTS i
SIN , NTION BA DETE ~ ~ ~ ~ 1 / \ \ y ~
PHASE 3 b ~ z
, ~ ~ ~

~ 1 i / ~ 9~ ~ i ~ i
i` ~ ~L .
~ ~ ~ _1 L ~ ti F
~ ~ ~ . ~ ~ ~ .z. , ~ ~ ~ S ~
~ ~ ~ ~
` \ ~ ~ ; 7 , ' F
~ V~ i 1 ~ ~ i
I o
i~ ~
/ / ~ ~ , ~
O
1 D DRY NDE EXTE 0 ED PROP S ~ ~
P ~ ~ IE _ ~
B A IN ON B NTI DE \G ~ ,
r I ~ ASE 4 PH ~ _ ~T81
~ ~ ~ ~ ~ \ \ ~ ~ ~
~ ~ i / \ ~ A\ , , ~ / \ ~ ~ ~ _ ~ ~ , ~ , , , TE DED
TYP , RBUFFER RIVE \ , _ _ , ~ NEUSE , PRO
~ - \ _ , , ~ 's t T ANDS BASIN 6B WE L
V ~ I
~ ~ ~ ~ PHASE 6
~ , - ~ ~
f \ ~ ~
I ~ . A A ~ ~ , ~ ,
, ~ ~ . 1
~ ; ~ au~wmr. ~ A NAY ~ = ~ ~ , .
_ , ~
~ ~ ~ \ ~
~ ~ ~ ~
n I ~ ~ O
~ ~ ~ 1 ~ V' ` ~ ~ ~ \ ~ ~ C
~ / ~ ~ A R R ~ U ~ o v
~ ~ ~ C
. n ~V ~ ~ ~ ~ , I ~ ----I 2 D AN
A~~ ~ _ ~ ~ ~ ~ ~ NE ~ ~ ; ~ ~ ~
~ ~ ~ ~ ~
~ - ~ 1 _ , - D ~ ~ , ~
- ~ D ~ ~ ~ I -
1 \ ~ ~ I ~ ~ ~ ~ ~ ~
~ ; ~ I y r~ovcrtc
- ~ ~ , ~ ~
~
UE ~N ~ N A - , ~\VV I V~. ~
o ~ N gRA m N i
- c ~ , z I ~ ,
_ -----I
XTENDED ~ - s - , P OPOSED E R y 2 ~ ~ .
IN 2A ~ N BAS WETLA DS s ~ ~ ~ T RM WATER PROPOSED S 0
~ 1 1 ~ ASEMENT NT E ANAGEME M
HAS 2 a P i o 0
a 1 _ ~ ~ ~ ;A~ a TE AtT DRIVE
~ 1 N - ~ ~ ,
~ NS ~ JA VI ------I _ ~ I _ _ _
m VER ~ 1 i i
m ~ ~ -c
~ ~ ~ uDVIEw
~ C7 ~ ~ \
m 1 1 ~
T~ 1 - ~ o ~ ~ , - , a - c D RE DIVE _ - ~ _
i a ~ ~ ~ _ ~
I ~ ~
~
m RV - GE i GO RAN - \ G . 0
~ a N DRIVE
0
z 1
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D _ CV I,EN _ _ Vi ~
z - - GA _ . _ I Gq ~ _ _ `~1raeNtrni~'~e9
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z w s~ SEAI
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_
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~ ~ ~ ~ p~ I~ ~ , N L. m
W N,~O = m R£S ~ o r ~ ` C gnan ~s ,ST - - z
o z Rp ~ I o o q0 Rp qO ~
~ ~ o ~ o u~ P EXTENDED DRY ~ GRAPHIC SCALE PRO OSED
D DRY OSED EXTENDE ~ ~ PROP '~I
I D o N TEN110N BASIN D DETENTION BASIN ,5a o ,5 ,50 ~o eao
DE o N I O Q SEE SHEET 4
~ E SHEET 3 ~ SE (IN FEET )
~ ~ C 1 inch = 150 ft.
~ Z m
~ o VER BUFFER TYP NEUSE RI 9 I
~ ~
W I
I N
O Z
No. Revision Date B Designer Scale Sheet No.
W&R 1 "=150' 9 WITHERS R"ENEL IRM WATER MANAGEMENT PLAN ENGINEERS I PLANNERS I SURVEYORS
Drawn By Date W&R 03-27-02
By job No. LONG LAKE SUBDIVISION STORM 00 Checked 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com
o KLJ 201113.0
0
Y

SOP D EXTENDE \
~9~ ~ ~ WETLANDS BASIN 6A
OPOSEO EXTENDED L L SPREE PR EADED ~ IEL SPR ~ ~ r ;
' PROPOSED EXTENDED ~ ~ ~ PHASE 6
WETLANDS BASIN 2A SEE ET WETLANDS BASIN 2A _ ET 5 ~ , PROPOSED EXTENDED
PHASE 5 ~ ~
PHASE 4 ~i~ WETLANDS BASIN 66 o ~~i
~t \ ,J PHASE 6
e NE RIVER BUFFER TYP USE P
~ O`
? , ~ / i~ NEUSE RIVER BUFFER TYP
/,F ~ ~ ~ ~ _ , ~
~ ~ j ~ ~ ~ ~
` ~ i VIN N , _ ~ ~ - - ~ ~ i
,~ie i /jj% ~ ~/i,~ i~ . _ ~ A ~ ; / i ; i, ~ _ - ~ i i i . , i = , - ~
EXTENDED DRY ; ~ ~ % r ~ ~ PROP0~0 ,1
i ~ , _ ~ ~ _ - - ~ SH ER 1GHTS ~ ;
BASIN _ ~ e~ ; , DETENTION - ' ~ ~ ~
PHASE 3 %i D ~ / / ~
p~ ~ ~ i ~ ~r ~ ~ ~ ~ _ / ~ i - - ~ i " / ~ ~ ~ ~ , j . ~,l__~ / ~ /
_ ~ ~ i _ ~ / ~ i r - i - ~ o - / ~ / is i ~ ~ . ,
~ ~ 1 ~ ~ ~ f~ ~ ,,.ti i ~ ; 1 ~ / i / ~ ~ i c i~ % ~ , ~ / - ~ ~ ~ i ~ i'
,o~ f ~ .a- ~ . ~
% ~ ~ _ ~ ~ , ~ ~ / ~ ~ - ~ ~ ii 'r v ~ i
_ ~ .l ~ _ ~ _
/ ~ ~ ~ . ; ~A i~ i ~ ~ ~ A ~ ~ ~ ~ ~ - ~ ' ~ ~ /f T ~ ~ ! ~ / ; ~ >
1%y~ ~ ~ ~ r ~ _ - ~ ~ ~ ' _ J \ i / i _ ,
_ 9 ~ ~ -r ~ f ~ - - _ ~
~ / i ~ ' t i _ _ - , ,f /
/ / i ~ i ~ ~ _ ~ ;
~ ~ , _ ~ ; 1 W, ~ _ _
Q i ~ ~ ~ ~ , ~ i ;i , ~ , ~ ~ / i' /
1 , X N ED DRY POSED E TE D PRO , , , ~ i'
P %i E NTION BASIN 2B ~ D TE ~ ~ ~ ~ 1, j - ~ , j / ~ , i~ i ~ i
~ i \ ~ ~ ~ - ~ - l _ , ~ ~ y -
PHASE 4 ~ ~ , , , ~ _ - J.~ ~ j ,
5~ ~ j ~ - -
i f , - ~ +r
_ _ _ , t 'l~ar.. ~
FR i U IVER U ~ NE S A, ~ ~ ~ _ _ _ . ,
- , ~ i~ , _ ,v _ . ;A ~ A ~s ~ ~ ~ ~ ,
i ~ ~ , _ - j u;A
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~ ~ I S ~ ~ ~ \ ~ ~ ~ ~ ~ ~ OVA / At\. ~ ~ L ~
Q ~ ~ 'C ~ ~ ~ ~ ~ _ A 1 ~~1 V A. A ~ A~ ~ ~ , .
_ _ / ~ ` ~ i ~ _ ~ ~ a= ~
~ - ~ ~ 1 ~ _ ~A ,~l ~ ~ ~ ~ ~ ~V~~~ ,~A~
~ ~ ~ / i t ~ ~ \ ~ . , _
, t ~ - ~ ~ \ ~
~ ~ ~ ~ ~ , ~ r ~ ~ w ~ ~
~ . , ~ \ , a r ,
- ~ ~ ~ , , ~ ~
~ / ~ ~ ~ ~ ~ ~ ~
~~o \ l V ~ ~ ~ ~ I R BUFFER tYP EUS VE N
~ ~ ,
~ ~ - ~ ~ ; D ~ ~ , _ ~ ~ ~ WETLAN
~ ~ ~ DS ~
~ j ~ ~ ~ ~ _ , ~ ~ ,
~ ~ ~ _ , ~ ~ . ~ yr
~ ~ ~ % _ ~ -
h. ~ ~ ; _ ~ i ~
~ ~ ~ \ ~ \ ~ ~ d~oNer~c
y ~ _ _ . ~ ~ ~
~
dr _ _ i ~ ~ , pt~ ~ i ~ ~
~ ~ ~ h~ ~ / \ ~
~ - ~ / ~ ~
~ i i r' ~ A~~ ` j ~ ~ PROPOSED EXTENDED - ~ ~ ~ -
r ~ _ y 2 ~ , ~ ~
WE A S . TL N BASIN 2A ~ - , ~ M WA R P STOR ROPOSED
~ ; ~ ~ , ~ ~
. ~ - , . ~ . ~ AGE ~ MAN MENT EASEMENT
~ ~ ~ r
r ~ . ~ . ,
, , _ _
E - 1 ~ ' j ~ / i' ~
~i ~ , i _
~ i / / ~ ~ . ~ ~ ~ / / y _
A ~ ' ~ ~ f ~ ~ / ~ ~
m ~ i
~ / 1 ~
~ ~ ~ _ ~
i~ , ~ ~
- _ ; G 1 ~
r ~ ~
~ ~ t ~ ~ • ~ ~ \ ~ ~ M ~ ~ ~ - ~ 1 ~ ~ - . ~ \
~ ~ _ ~ / ,
l ~ ~ ~ J ~ ~ ~ ~ ~ ~
~ _ ~ ~ v V ~ ~ ~ ~ ,
~ , _ - ~ ~ _ ~ \ s ~
i ~ _ _ , _ . - , s ~ ~ ~ ,
~ t . _ _ _ ~ W ~ _ - _ ~ E ~ i - _ ~ , - r ~ € o~;_ ~ ~ - ~ ~
z 7 ~ o ~ jl_(/ ~ v r, '
J ~ ~ t , ..;r
W ~ ~ D 2 i ~ ,
=f l _ y ~ _ _ _ ~ _ D i A `7, i ~
~ _ _ _ _ _ _ 2 . _ r
r- p/N , . ~ ~ , > _ , ~
W ~ R ~ F
R£S ~ c~ z o r ~ Ra R _ Oqp
~ o o qC ~ o 0
~ PROPOSED EXTENDED DRY PROPOSED EXTENDED DRY ~ GRAPHIC SCALE
o ~ ~ ~ a o ,1. , DETENTION BASIN ,so ~ s so 800
DETENTION BASIN D n ~ O
R ~ ~ SEE SHEET 3 SEE SHEET 4
z < (IN FEET )
~ m ~ v 1 inch = 150 ft,
o NEUSE RIVER BUFFER TYP ~ ~
W
I N
No. Revision Date B Designer Scale Sheet No.
~ W&R 1"=150' 9 WITHERS R"ENEL PROPOSED GRADING PLAN ENGINEERS I PLANNERS I SURVEYORS 2
Drawn By Date o W&R 03-27-
LONG LAKE SUBDIVISION PR( 6C 1, [=By Job No,
r 3 KLJ 201113.0 111 MacKenan Drive Cary, North Carolina 27511 teL [phone] fax: [phone] www.withersravenef.com 11 1 -J-1
0
Y

- _
256 NYMPtiAEA ODORATA 162 JUNCOS 61 S
80 PELTANDRA VIRGINICA 30 ThIALIA DEALBATA
\ ~ CLASS BRIP-RAP 579 PONTEDERIA CORDATA 140 PONTEDERIA CORDATA 12 MIRIGA CERIFERA ! 5 CANNA FIACCIDA
` DISSIPATOR PAD LONG LAKE 103 QUATICA
~ 19 Lz81Nz9b 470 SAGITTARIA
~ USE FILTER FABRIC UNDERLINER o° 34 PELTANDRA VIR NIEA~, ,
0 \ 215 SCIRPUS PUNGF 5 SCIRPUS PUNGENS
~ \ 46 TYPfiA ANGUSTIFC TIFOLIA "R;' N': TYPfiA ANGUS
31 CANNA FLACC 12 MYRICA CERIFERA 31 CANNA FLACCIDA /
/ / , , , / / ~ / / / ~ , ' ~ ~ ~ ' 69 JUNCOS BIFLORUS / / / /
1'' o
o - /iii//ii~~/,/ /
/lil • • • • • ///i~,,/
" ~ 24 RCP r • r • v r • r • v r ? • r • / / / / , , / / /
I 311,00 r r ? ? • ? • • v • r • • • ? / / / , / / • • + + / , r • • r r•r• rr•• • rrr r•v rr• yr 1 /
•r• • ? . . • r • . . r .
+ 40 4 RCP, 472.5 C 1,25% • +
/ / ~ ? • r • . . . . • . . r . ~ .
+ ~ 5 3~ ~{v • r • • • • • •r rr •r r•rr•. , / l / • r • r r • r •
4 2,5 19 I ZIZANIA AQUA1 / r r v r• v r a + r 91 ZIZANIAAQUAT ? . • • • .•.r.••.. • • Y ? ? • • . ? •
_ _ 2! 5 SCIRPUS PUNGI + _ 5 SCIRPUS PUNGE • • • • ` ' ~l• • • • r ? • rrr • r ••r r • ? ? ? r r • r • r v r
75 PELTANDRA VIRGIN 371.5 PELTANDRA VIRGINICA , / • r . + . + " , • . • • • ? r
+ / r r• +•r•rr+rv•rr rrrvr r . r . , ? v• • ? ? . . r r . r . r . . . + . . rr? r
~ 5 o / r+...
~ + a, ~ e •
371,5 0 /
35 C~ 36"~ CONCRETE 959 SAURL CE 63 PELTANDRA VIRGINICA 959 SAURURUS RN
RISER W SH ~ ~ HYMfNOCAIII ~ ~ 83 83 HYMfNOCALI S C , / 88 f1YMENOCAIUS CAROLINIANA
fem.--~_____.__-_.._ SKIMMER RACK /
+ ~ ' ` ~ 376 PONTEDERIA CORDATA / ..:o~~~:
472,5
:.+~.e+a : 22 CANNA FIACCIDA
~ CLASS 'B' RIP P / + 313 83 IRfS VIRGINICA
DISSIPATO AO 72,5 1 'Lz8'Wx "D ~ ~ 9 89 SCIRPUS PUNGPNS
~ \ USE FlLTE FABRIC
Y~' y' ~ ~ UNDERLIN 317
~ I
70 IRIS VIRGINICA
ES~31 - ~1° 82 SCIRPUS PUNGENS
~ / I 21 PANICUM VIRGATUM
wo 5 MYRICA CERIFERA
I „ ~ ~ 1 =20

-
~
- VIEW DED ON P ND 31 PLAN
1' o'
INF TK1N SUMMARY ORMA HIGH MARSH
_ LONG LAKE SUBDMSION - _ EXTEND D W 0 FES 31 -LOT 1 8495 SF
84 - -
~ E _ _ Storm Opeak Qpeak Max. Maz. - - g
Frequency In Out WSEL Pond Storage __--NgTI~- - -
- r. cfs cfs ft, ac, , LOW MARSH
80 TS At 3' RATING WHEEL 2 57,7 11.0 375,51 1.318 5,528 SF MICRO POOL
' NIN FROkI ASE SKIMMER D VICE _ _ _ 10 75.1 26,5 375,95 1.502 _ _RISER-- - - 100 97,3 31,5 316,80 1. 312 SF
18 TOP OF DAM = 77,0 _ -
PROPOSED GR _ -
16 - 1 = CREST EL 375.0 " ELEVATIONs
4 _ DIP _ - BASIN BOTTOM EL.EbATION 371.50 Ff -
14 _ _ _ - - PERMANENT POOL ELEVATION 373,00
ANTI-SEEP C A _ ~IANHOlE.. CREST ELEVATION 385,25 FT _ TOP OF DAM ELEVATION 383.
72 INV 11.00 0'•:' M N
FORE BAY
AREAS 70 775 SF
_ - - PERMANENT POOL SURFACE AREA 14,953 SO FT _ »~-~p-~ _ ANCHOR kl HOLE AT LEA T DRAINAGE AREA 18,05 !CLASS RIPRAP _ - -
" CaVCRETE FO 11NG - 68 _ - IMPERVIOUS AREA 8,16 AC HIGH MARSH
_ --g~ -x-~p-x. 4 SF 8 95
66 _ OTHER PARAMETERS
DESIGN RAINFALL i IN RUNOFF
r. DRAWOOWN DEVICE SKIMMER
o N a, co N ~ ~ 'p 48 HR 0 0 0 ~ ~ u~ ~ MIN, DRAWDOWN TIME REO I
0 0 0 ~ N ~ ~ ~ ^ " ~ M N VOLUME REQ D 0,687 AC FT ~•=--~J""°' ~ ~ ~ ~ ~ ~ M MIN, DETENTIO , ~ w~ a ?
M M M ~ M ~ DETENTION VOLUME PROVIDED 0,755 AC FT
SKIMMER - " " P =..Q.~.~
0+80 1+00 KIMMER W 3,3 HEAD " 0+40 0+60 SKIMMER TO USE; 4 S ~ _
0+00 0+20 1 -20 NOTE. AWED = 29,939 CU FT VOLUME TO BE DR
_ A L BE TONGUE AND GROOVE W CONFINED _ 2 DAYS PROFILE ViEW 1, 24 ~ RCP SH L DRAW DOWN TIME - RISER BARREL NOTE:
~ " ~ ' ' T MEETING ASTM C-443 LATEST AND RIFICE AREA = 10,29 SO IN - 0 RING GASKE o THE CONTRACTOR SHAII SEED AND MULCH ALL BARE
1 =10 HORiZ IN " NT OF ASTM-C-361 LATEST. ORIFICE DUMETER 3.62 ~ = RT JOI 1 5 VE AREAS EXCEPT IN AREAS WHERE PLANT MATERIAL IS
vENr PLACED AFTER CONSTRUC110N IS COMPLETE: SLIT FENCE
SCREEN ACCESSIBLE THROUGH DOOR SHOULD REMWN IN PLACE UNTIL GRASS HAS BECOME
.o ESTABLISHED.
a~ ~ A ° ° A Pi:AM' usr
NOTE: NorE: ECIES Common Name S cin
~4 REBAR 12" SKIMMER MAY V - O.C. EACH WAY ILLUSTRATION I HTLY FROM QUA SP SKINNER NAY VARY Sl G ILLUSTRATION
o nn flacc~a Golden Canna 3' o.c, 103 Ca a
~ PRESSURE RELIEF ° ° ° enocallis caroliniana Spider lily 18" o.c, 171 Hym
HOLES 1/2" DIA. ° o ` 0 i
° ° TOP IS 10 CAGE CORRUGATED PLAN VIEW : " ° METAL OR 1~ STEEL PLATE. n vir inica Blue Flag Iris 18" o.c. 153 I s g flOAT 2~ O.C.
PRESSURE RELIEF HOLES MAY B WELDED (lYP) OMITTED, IF ENDS OF CORRUGAiI NS BARREL 231 Juncus biflorus Shore Rush
ARE LEFT FULLY OPEN WHEN TH PIPE 1 2" PREFORMED JOINT rica cerifera WoX Myrtle 5~ o.c, 29 My ,
IAMETER / ' i0P IS ATTACHED, D FILLER, 12" WIDE 256 N oea odorata Fragrant Woter Lily 3 o.c.
T ~ OUiLEf END; C( CYLINDER IS 12 GAGE CORRUGA ~ . ~e,sac ~ OUTLET END; CONNECTION q`~8ti,,+ ,geeee
MEiAI PIPE OR FABRICATED FRO lti Q TO OUTLET PIPE ~ i a CA 21 Panicum vir atum Switch Grass 3 o.c. TO OUTLET PIPE OR RISER ea 9 BARREL PIPE LONGER THAN SHOWN r . ~ ?.r e W Alum 18" 0.C.
7g" "STEEL PLATE. ' ~ ` iv w C~. •~~"1 ~a f111V NOT INCLUDED WITH SKINNER ~ n,,~~~~3;.~fl~ 252 Peltandrv vlrg?rnca
iACKWELD a ALL AROUND 19" NOTES: M Y SUPPLIED BY USER e,~`'~ ; M 1$" O,C. r ~ 1,095 Pontederio cordata Pickerel Weed S~~.RL
i. THE CYLINDER MUST BE FiR 18" o,c. ifolia Broadleaf Arrowhead Ib49II 678 Sag?ttarw lat
" IN. FASTENED i0 THE TOP OF THE RISER. 2004 PSF MIN, s~^.~'"~~~°',~ 0 959 Saururus cernuus liiards tail 2 o.c.
c 2, SUPPORT BARS ARE ATTACHE ATION $ECTfOfV BEARING CAPACITY 48 ELEV BENEATH COLLAR FLEXIBLE JOINT ~ n~,.""° ' 386 Scirpus pungens Three-Square Bulrush
BY STRAPS BOLTED TO THE TOP F " SUPPORT BAR SIZE ,y I_. ,
r 6 X 1 8 REBAR RISER. ACER BAR f,~,~+ Thalio dealbato Powdery Thalia 2 o.c. 30
iYP Narrow Leaved Cattail 2' o.c, . 46 Typho ongustrfoha
SKIMMER DETAIL ~ ~ , Q»
N.r.S >A~ 294 Zizania aquatica was KICe
SECTION A-A ANTI-SEEP COLLAR
mv-vowu DEME NTS
NTS Sheet No.
e B Designer W&R Scale WITHERS R"ENEL FES#31 EXTENDED WETLANDS ENGINEERS I PLANNERS 1 SURVEYORS
No. Revision Dat NOTED 9
~ Drawn By Date W&R 03-25-02 LONG LAKE SU- BDIVISION FES 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: 919,467.6008 www.withersravenel•com
~b Checked By Job No,
r KLJ 201113,2
4

v
LONG LAKE
_ _ _ VENT . - a 1
_ - 1- ~ i SCREEN ACCESSIBLE 1HROUGH DOOR 1 _
- _ _ _ - ,
~ - - _ - _ - - ~ NOTE: -
- ~ _ _ ~ ~ _ _ SKIMMER MAY VARY SLIGHTLY FROM
~ - _ ILLUSTRATION _ ,
- - t_ ~
i" 1
_ _ - - . _ / ~ ~ _ _ _ ~
_ ~ _ 1 NRB _ , _ _ ~ _ ,
_ - - _ ~ ~ - _ _ _ _ _ _ LOA
_ _ , _ , _ - - - _ _ 30" FES
_ i - _ ~ ~ - P R~- , _ . . ~ ~ _ _ DISSIP AR PAD 30" FES o IN1V ~77.QQ - - _ OUTLET END• CONNECTI
NRB _ _ _ 2 IGH _ _ ~2# 1 D ON _D - V TO OUTLET PIPE OR RISER
- ~_~--~0 RAI,E OF _ _ U FLIER FABRIC - - BARREL PIPE LONGER THAN SHOWN
~ - - ROP SSE p YEA ,y ~ NOT INCLUDED WITH SKIMMER
_ ~ SUPPLIED BY USER
~ - _
' ~ ~~~~ANG-.. X MH 4E1~~ P~ALEI~Ff -
~ _ _ SANITARY SEWER EASEMENT X MH ~ _ , FLEXIBLE JOINT
BM 2001 PGS. 948 949 ~ - , , , ~
_ F _ o a_ O
, _._---~--SF----"'""SF o 56 ~F_CLA~ Ill o " RCP ~ 31~- SKIMMER DETAIL
- -~_____--SF.----SF ~ _._.----~-SF~:_.-.----SF - - N,TS
" ~ ----------SF__------SF ,----SF ~
/
~ / o O
i - / ~ a 4 ~ O
- ~ i - ~
/ . - _ _ " P ~OF $~1SIN - TO N ~4 REBAR 12"
/ / ~ - _ i ~ " Z ~ O.C. EACH WAY
_ 48 0 CONC o 1/ / RISER ASH ~ _ f O ~ _ ~ _ ,
- _ _ _ f' ~ ~ Q1 s
/ _ _ _ - _ o . . ~ ~ i „ ,
i - . . a.., M _ _ N
/ ^ ~ _ SKI MER ~ BARREL
q _ ~ ~ ry " / , / , , _ _ _ _ - 6 PVC ~ PIPE '
_ 5 " DIAMETER 1/2° PREFORMED JOINT 6 PVC .r FILLER, 126 WIDE
~ J . . .5 . .
. CLASS'B' RIP--RAP / ~ ~ - DISSIPATOR PAD ~ .1 0
~ % ~ i n 38 Lx9 Wz36 0 - 1 'I • p~ ry
l ! USE FLIER FABRIC - PV~G'.~^ 36 6" P INV 5 - .
/ UNDERLINER i - ®2J s"
- 2000 PSF MIN.
i - _ _ SH F ELEVATION SECTION BEARING CAPACITY
~ FES 798 ~ D BENEATH COLLAR

_

ANTI-SEEP COLLAR
C8 9A RETAINING W LL -
(BY OTHERS)
-
_ _ , _ ~ A o ° A
= _ _ _ ~ j -

- u PRESSURE RELIEF ° 0 0
XTENDEO ORY DETEN110N POND -PLAN VIEW - - _ - - - HOLES i/2" DIA,
1=20 0 0 PLAN VIEW o o TOP IS 10 GAGE CORRUGATED
° METAL OR Y~" STEEL PLATE,
PRESSURE RELIEF HOLES MAY BE - WELDED (TYP) OMITTED IF ENDS OF CORRUGATI S
ON ARE LEFT FULLY OPEN WHEN THE
TOP IS ATTACHED.
CYLINDER IS 12 GAGE CORRUGATED
78° METAL PIPE OR FABRICATED FROM Y TACKWELD STEEL PLATE,
394 AlL AROUND
610TE: _ _ - _ _ - 19 ° NOTES;
392 _ . _ _ _ _ _ _ _ _ PLACE TEM -_OP 1yF1EEL SUMMARY INFORMATION IN 1. THE CYLINDER MUST BE FIRMLY LONG LAKE SUBDIVISION FASTENED TO THE TOP OF THE
SUPP TS AT 3 - _ _ _ 5MIN _ -FROi?1- SE - _ _ _ _ _-VOR ~ DEiRCE ~SE~ TAIt - - 4B" RISER. EXTENDED DRY DETENTION LOT ~ FES 798 2. SUPPORT BARS ARE ATTACHED
390 OP OF DAM EL=422.0 $TQRM QPEAK QPEAK MAX. MAX 6 x 1 " SUPPORT BAR SIZE BY STRAPS BOLTED TO THE TOP OF
_ _ - - E CHART ~ SKIMMER DEVICE _ _ _ _ _ _ . - _ CONNECT TO 6" PVC FREQUENCY IN OUT WSEL POND STORAGE PACER BAR B REBAR RISER.
_ ( 388 _ _ _ _ - - _ _ - _ _ _ _ _ _ _ - _ 2 Z ST-E1=421.81- - _ _ _ - DISCHAR(~ PIPE) YR cFS cFS F (nP) T AC FT
_ - _ - _ _ _ _ - - 1 _ 1 - 2 99.71 30.00 388.84 1,294
_ _ _ 386 _ _ _ _ _ - _ _ _ _ _ _ - _ _ _ _ _ 4" DIP 10 129.8 54,57 389.06 1.425 SECTION A-A
_ - _ _ - 100 168.3 74,50 389.59 1.595
- - OSED GRADE BO TOM OF BASIN- 84.0 •
384 . _ AC~VG H 6 DE CE:NTERLIFIE AN -SEEP COLLAR - ..r--=~----F- PRESSION FOR _ _ _ _ _ - _ _ - - _ SEE DETA1t _ _ _ SKIMMER DRAWDOWN ELEVATIa~s
r - _ _ - 6 PVC PIPE BASIN 90TTOM ELEVATION 384,00 FT
382 - _ _ _ z4 TEE . _ _ - _ _4fl"~__PR CAST_ REINfOR _ - CREST ELEVATION 387.75 FT
_ _ _ INV-383.50 TOP OF DAM ELEVA T10N 390.00 FT
CONCRE MANHOLE RIS R ~ 380 - - ~ )
_ - - _ _ _ 1NV=~1.Z5 4" 90' HB~ - AREAS PERMANENT POOL SUFACE AREA 0 SQ FT
~ _ - _ _ _ - - - - 377.00 - _ _ _ _ = 4" N S GATE VALVE DRAINAGE AREA 24.18 AC
_ - _ c~ IMPERVIOUS AREA 12.56 AC
z 6 - - _ ST . _ - _ _ _ _ _ ANCHOR- AT .L€ ~ ~ if ~O(jTi(VG - „
w - - _12 _INTO ONCRETE F00T1 G z 374 _ _ __-CLASS-F 56 LF 30.0 R _ CLASS III 0 .129; SLOPE USE 2~5 _ _ psi CON _ E
ca P _ _ _ OTHER PARAMETERS
Z _ _ ISSiPA OR-PA 24°-THICJC _ _ DESIGN RAINFALL 1 IN RUNOFF DRAWDOWN DEVICE SKIMMER
w _ _ _ _ U E FILTER FABRI UNDERLINER _ 372 - Z - - - _ - _ _ - _ W _ - -I MIN ORAWDOWN TIME REQ'D 48 HRS
- MIN DETENTION VOLUME REQ'D 1.043 AC FT
~ _ _ _ _ 370 - DETENTION VOLUME PROVIDED 1.043 AC FT
t O N O N O r- 00 to r7 ~ ~ ~ O SKIMMER
h eh d~ ~ t(j I~ 00 00 rn CO ~ N SKIMMER TO USE: 4" SKIMMER W/ 4" HEAD
~ N^y t~ p7 M ~ M ~ ~ ~ ~ ~ 00 ~ ~ ~ ~ VOLUME TO BE DRAINED = 45,422 CU FT
a DRAW DOWN TIME = 2 DAYS
ORIFICE AREA = 13.84 SQ IN ~,P~a
0+00 0+20 0+40 0+60 0+80 1+00 1+ ~ 20 1+40 ``oea~e~ hpiippl ORIFICE DIAMETER = 4,20 IN m AR
" NOTE: ORIFICE FLOW - 0.19 CFS ~ ®~'q
„ RISER BARREL - PROFlLE VIEW " " " ~ 1. 12 0 RCP SHALL BE TONGUE AND GROOVE W/CONFlNED
~ 1=10 HORIZ '0' RING GASKET MEETING ASTM C-443 e 'ti C • s ~ j~, A~ S
" LATEST AND 1=5 VERT JOINT OF ASTM-C-361 LATEST. NOTE: ~9$
THE CONTRACTOR SHALL SEED AND MULCH ALL BARE ~ ° ;
e6 F~~~~l 1~~' °e o AREAS (EXCEPT IN AREAS WHERE PLANT MATERIAL IS 868.88.8.•8
PLACED AFTER CONSTRUCTION IS COMPLETE. SILT FENCE ''a~`F ~ p NL SHOULD REMAIN IN PLACE UNTIL GRASS HAS BECOME pppp dpull N ~1
ca ESTABLISHED.
3 No. Revision Date B Designer Scale
9 W&R NOTED
Drawn By Date .o Sheet No.
r 6 W&R 03/26/02 LONG LAKE SUBDIVISION EXTE N DI WITHERS R"ENEL V
Checked By Job No, ENDED DRY DETENTION POND - FES 79B ENGINEERS I PLANNERS I SURVEYORS 4
KLJ 201113.2 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: [phone] www.withersravenel.com

_ _
_ _
J---y
~ _
_ _ _
a j,'

~ ~ ~
8 ~ S ' •g

- _ - i
oA _ /
9 Os i
O _
MH 9
~
0 _
50' N ~ ~ _ _ - ~ s RB F
P MINIMAL ASS A RIP P ~ _ ~ ~
DRY DETE ON POND 0 T ND Of DI CHAR PIPE TO R TEC E S ~ . ~ _ CB 2
-

.5 / _ ~ - c?
g
FES 2 ~
, 18" P '.t / _ ,
_ INV 385,8 i
_ _ , r
36 6" PVC = ~ ' ~ IEVEI SPREADER J ~ 2' PLUNGE PO _ ,
0 2 8~ 6" PVC _
" INV 382,5 . / \
f,~
LEVEL SP ADEN- OR POND FES 79B _ _ _ -
" SCALE. 1 = 5 ~
~ ,
FES X29
FES X603 Q = 7.9 CFS
D1A = 18" RCP
Q = 0.19 CFS
DIA = 6" PVC
TTERN "E n - - - LeV STAPLE PA Levei Spreader knot to same} LEUEI. SPREADER SPEGFlCAl10NS
IEVEI SPREADER SPECIFICATIONS 3.75 staples/yd^2 (4.5 staples/m^2) using 6 in 1HU±Jr.. LENGTH = 79 FEET • , ~ • ~ ;.»s »»Mi,,,,,»W; DEPTH = 0,5 FEET
_ (15.2 cm), 11 ga. wire "U" y~u~ LENGTH 19 FEET 4.O f t .Vegetated .f » ~ , ~`,"y"',~~~ , ~~?a'~ '»A.«~;~~`"`""""TransitNOn WIDTH ~ ENTRANCE = 10 FEET
DEPTH = 0.5 FEET staples. 8 In (20.3 cm) ~ div r o (1.22m ® ~ e si n r
= staples and longer may be ~,;a.+~ WIDTH ®ENTRANCE 5 FEET used for loose soils. 9 ~ r» a ; : #n 0 grade GRASS TYPE =TALL FESCUE .;cr w~ ,w,r ~ti a.• LINER -DOUBLE NET COCONUT
GRASS TYPE = TA L F , • ~ ~~a L ESCUE ga. staples or heavier may '1,~a,•1•,w»~. ~ ~ FIBER EROSION CONTROL BLANKET
~i LINER =DOUBLE NET COCONUT be necessary in hard or ~ ,µi~,~~,~+ 1 ,h•;~,a ~,4~ M;,, ~1u,t (NORTH AMERICAN GREEN C350) 1 hMM w b u. ' 4
FIBER EROSION CONTROL BLANKET rock soils. Ir'y~w4,~~ SO11 ~ ~ ~M ~ Y• llnt 4, 'v~ `cwt Ir•y~.~~w1yty~t~~„~t r"'"""""'r ,fit '1" ,,,~„r
(NORTH AMERICAN GREEN C350) Secure blankets to ~ ~ "rr,~,,.~,„w~,~,•. ~;,,,.w» b placing astaple/stake ~"'~'u ~ ~1. 111» \ 11A,•"~ ,11 ~ i~` ,,F~ ~V
. 8 f 1.6 f t ~~N, ,y' ,rt'. r~ t rough each YELLOW colored dot. , ~„r
Stable a• , ~ ~ M ~ ~p w11`w

outlet t „ ~ ~a J w~ r ,~,w
't' ~G kw ~4 1,. W ,~k~~ y X11 ~ }p, tv
r . ,N~ , 111M1 N ` win" n„ ~4^ v~b,
~II. X14. M{f k1 . ~U y~,. vk, 1« ~i,. tKt. ti1~ „1~,.,dtt,. Alt.
k~, i~ w~ ~1. wS ~,I. d 111t ~1~) 1~ r ,,1t, 1w4 ~ wi Nil,
6.67ft ~
(2.Omj_ _ , , Crass Section
~ -
Material Variable
stapled in
MATERIAL SPECIFICATIONS place " ~ 6
miri
~ ( I I~ C350 The com osite turf reinforcement mat C TRM shall be a machine roduced mat of 100% coconut - I~i~l~1'` ~ J I ~ ice., I I I
P ( ) P rl-- I~ fiber matrix incor orated into a ermanent three dimensional nettin structure. 'L" P P g Level hp ~r1=•I( III; = W----• I~ i I I I I I N
:III 11( 1_ of spreader III I1(~--~ (w_ 1_ I I~ ~C I~•--•• f 111-• ( II
The matrix shall be stitch bonded between a heav dut UV stabilized bottom net with 0.50 x 0,50 inch --w-~ Y Y I I I' l I, I i I J~
(1,27 x 1.27 cm) openings, a super heavy duty UV stabilized, dramatically cuspated (crimped) sir+~ _"""'111...-~Illf,.. I l`~ 1
intermediate netting with 0.50 x 0.50 inch (1.27 x 1.27 cm) openings, over lain with a heavy duty UV 6 St, mm
stabilized top net with 0,50 x 0.50 inch (1,27 x 1.27 cm) openings. The cuspated netting shall form rominent closely spaced ridges across the entire width of the mat, The three Wettings shall be stitched
P together on 1.50 inch (3.81 cm} centers with UV stabilized polypropylene thread to form a permanent LEVEL SPREADERCONSTRUCTIOt ~ONSTRUCTlON SPECIFICATIONS:'
three dimensional structure.
1. THE MATTING SHOULD BE A MI HOULp BE A MINIMUM OF 4 FEET VVfDE EXTENDING 6 INCHES OVER
~ All mats shall be manufactured with a colored thread stitched along both outer edges (approximately 2- THE LIP ANDBURIfD61NCHES ~R1ED 6 INCHES DEEP IN A VERTICAL TRENCH ON THE LOUVER EDGE. 9E SHOULD BUTT AGAINST SMOOTHLY CUT SOD AND BE SECURELY
- 5 inches [5-12.7 cm] from the edge) as an overlap guide for adjacent mats, THE GPPER EDGE SHOULD BU' ~ HELD IN PLACE WITH CLOSi~Ll~ WITH CLOSELY SPACED HEAVY DUTY WIRE STAPLES AT LEAST 12
~ INCHES LONG. The composite turf reinforcement mat shall be the North American Green C350, or equivalent. The
C350 ermanent com osite turf reinforcement mat shall have the followin h sical ro ernes: 2. ENSURE THAT THE SPREADER N P P g P Y p p RUNOFF. 'HE SPREADER LIP 1S LEVEL FOR UNIFORM SPREADING OF STORM
w IE LEVEL SPREADER ON UNDISTURBED SOIL (NOT FILL},
o Material Content 3. CONSTRUCT THE LEVELSPRE ? 4. CONSTRUCT A 20 FOOT TRAM: ?0 FOOT TRANSlT1ON 5ECTfON FROM THE DIVERSION CHANNEL TO
w BLEND SMOOTHLY TO THE WI[ iLY TO THE WIDTM AND DEPTH OF THE SPREADER,
w Matrix 100% Coconut Fiber, (0,5D Ib/yd3 [0.27 kg/m3]) z 5. DISPERSE RUNOFF FROM THE OFF FROM THE SPREADER ACROSS A PROPERLY STABILISED
SLOPE NOT TO EXCEED 10°/a. I Nettings Top-Heavy UV Stabilized Polypropylene EXCEED 10°/a. MAKE SURE THE SLOPE 15 SUFFICIENTLY SMOOTH
~ TO KEEP FLOW FROM CONCEN w 8.50 Ibs/1,000 ft2 (4.15 kg/100 m2) z 6. IMMEDIATELY AFTER LEVEL SF FROM CONCENTRATING, FTER LEVEL SPREADER OONSTRUCTION, APPROPRIATELY SEED
Mid-Super heavy UV Stabilized Polypropylene AND MULCH THE ENTIREDISTI ENTIRE DISTURBED AREA OF THE SPREADER.
20 Ib/1,000 ft2 (10.21 kg/1 DO m2)
Bottom-Heavy UV Stabilized Polypropylene N 8.50 Ibs/1,000 ft2 (4.15 kg/100 m2)
u~
€ UV St bilized Pol ro ene ~ Threod a yp pyi
11q$1711111Ip1.
~ Physical Specifications (per roll) r`'~1~(3~~~ rA~1(~'r~yes, a ,qt ~l~,oy((e paeae~a /fA. ,~sn
English Metric $ Width 6.50 ft 2.00 m ~ ~ r 11~ C J~ a
N Length 55.50 ft 16.90 m 9+ ~ SEA~E ~ H • ~ yyn
~ Weight 37,00 Ibs+ 10% 16.80 kg ~ , ~~J ~ • a n` e o
Area 40.00 yd2 33.40 m2 I~e~~•~ e 9 YO , e1 ,yM rs FT ~ ~ o
t~ Isgeee1j I! 1 x
~ ~7~
= Revision Date B Designer Scale
W&R NOTED
r Drawn By Date WITHERS RAVENEL Sheet No.
o W&R 03-27-02 LONG LAKE SUBDIVISION Checked By Job No, LEVEL SPREADERS ENGINEERS I PLANNERS I SURVEYORS 5
g KJ 201113.0 111 MacKenan Drive Cary, North Carolina 27511 teL [phone] fax: [phone] www.withersravenel.com
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~ m ~ ENGINEERS I PLANNERS I SU ~ i A ~ ~ Q ~ 111 NaaKerwr. Dme Cary, Nodh Carding 2151 ~ 1 tel: [phone] faz~. 919 LANNERS 1 SURVEYORS o 100 <oo '--I Inc ,e,.:919-469-3340 'ax: 919-467-60081 www.wi:he!sraveneLcam' -
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