20041130 Ver 1_COMPLETE FILE_20040713

08%26,'2005 09:22 FAY
.O G
4 002
Micbael F. Easley, Governor
William 0. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
. October 22, 2004
Centex Homes
Attn: Grey Methven
2301 Sugar Bush Road, Suite 4C0
Raleigh, NC 27610
Subject Property: Harrington Point SubdivWon
UT to S; camore Creels [03-04-02, 27-33-9, B NSW]
Alan W. Klimek, P.E. Director
Division of Water Quality
DWQ Project # 04-1130
Wake County
Page 1 of 4
Approval of 401 Water Qualit, Certification and Authorization Certificate per the Neum River
Buffer Protection Rules (15A 1MCAC 211 .0233) with Additional Conditions
Dear Mr. Methven:
You have our approval, in accordance with the attached conditls and those listed below, to place fill
within or otherwise impact 0.224 acres of wetlands, 250 feet of treams and 24,201 square feet (ft) of
protected riparian buffers for the purpose of constructing a subdi?+ision at the subject property, as
described within your application dated July 12, 2004 and received by the N.C. Division of Water Quality
(DWQ) on July 13, 2004 and additional infomsation dated September 22, 2004 and October 8, 2004.
After reviewing your application we have decided that the impacts are covered by General Water Quality
Certification Number(s) 3402 (GC3402). The Certification(s) allows you to use Nationwide Permit(s) 39
when issued by the US Army Cops of Eaganeers (USAGE). This letter shall also act as your approved
Authorization Certificate for impacts to the protected riparian buffers per 15A NCAC 2B .0233. In
addition, you should obtain or otherwise comply with any other required federal, state or local permits
before you go ahead with your project including (but not limited to) Erosion and Sediment Control, and
Non-discharge regulations. Also, this approval to proceed with your proposed impacts or to conduct
impacts to waters as depicted in your application shall expire upon expiration of the 404 Permit.
This approval is for the purpose and design that you described in your application. If you change your
project, you must notify us and you may be required to send us a new application. If the property is sold,
the new owner must be given a copy of this Certification and approval letter and is thereby responsible for
complying with all conditions. If total fulls for this project (now or in the future) exceed one acre of
wetland or 150 linear feet of stream, compensatory mitigation may be, required as described in 15A
NCAC 2H.0506 (h). This approval requires you to follow the conditions listed in the attached
certification and any additional conditions listed below.
The Additional Conditions of the Certification are:
L Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general conditions
of this Certification (or Isolated Wetland Permit) are met. No other impacts are approved including
incidental impacts:
401 Oversight /Express Review Program
1650 MaN Servloe Center, Raleigh, North Carolina 27099.1050
2321 Crabtree boulevard, Suite 250, Raleigh, North COM" 27304
Phase. 419-733-1766! FAX [phone] Internet htt.enr. t .u tian
A6(a-26-2005 FPI 037:46 TEL:[phone] NAME:DWO-WETLANDS P. 2
05,'26/2005 09:22 FAX
Z003
Centex Homes
Page 2 of 4
October 22, 2004

Stream Amount Approved
(Units)
124 (feet) Flan Location or Reference

13-4 (Street ")~")
Stream 126 (feet) B-5 (Street "H")
404 Wetlands 0.224 (acres) -
Buffers 12,387 (s ware ft_) B4 (Street "F")
Buffers 11,814 s uare ft.) B-5 (,Street "H")
2. Compensatory Mitigation Using the Ecosystem Enhancement Program (EEP)
Mitigation must be provides for the proposed impacts as specified in the table below. We understand
that you wish to make a payment to the Wetlands Restoration Fund administered by the NC Ecosystem
Enhancement Program, (EEF') to meet this mitigation requirement. This has been determined by the
DWQ to be a suitable methcd to meet the mitigation requirement. Until the EEP receives and clears
your check (made payable a DENR - Ecosystem Enhancement Program Office), no impacts specified
in this Authorization Certific ate shall occur. The EEP should be contacted at [phone] if you
have any questions concerni ig payment into a restoration fund. You have one month from the date of
this approval to make this pa yment. For accounting purposes, this approval letter authorizes
payment into the Wetland: Restoration Fund to meet the following compensatory mitigation
requirement:
Compensatory Mitigation
Required River and Sub-basin Number
Stream 250 feet 03-04-02, 27-33-9
3. Written Stormwater Management Plan (Phase I)
A final, written stormwater management plan (including a signed and notarized Operation and
Maintenance Agreement) shall be approved in writing by this Office for all future development at this
property before the impacts specified in this Certification occur per Condition No. 4 in GC No. 3402.
The stormwater management plan must include worksheets, plans and specifications for stormwater
management facilities that art appropriate for surface waters classified as Class "$ NSW" and
designed to remove 85% TS1 according to the most recent version of the NC DENR Stormwater Best
Management Practices Manual. These facilities must be designed to treat the runoff from the entire
project, unless otherwise exp' icitly approved by the Division of Water Quality. Also, before any
permanent building is occupiod at the subject site, the facilities (as approved by this Office) shall be
constructed and operational, ;+nd the stormwater management plan (as approved by this Office) shah
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 authorc;ation from the Division of Water Quality.
4. Written Stormwater Management Plan
(Final Plans Needed -- Future Development, Phases 2, 3 & 4)
A final, written stormwater management plan (including a signed and notarized Operation and
Maintenance Agreement) sha' l be approved in writing by this Office for all future development at this
property before the impacts specified in this Certification occur per Condition No. 4 in GC No_ 3402.
The stormwater management plan must include worksheets, plans and specifications for stormwater
management facilities that are appropriate for surface waters classified as Class "B NSW" and
designed to remove 85% TSS according to the most recent version of the NC DENR Stormwater Best
Management Practices Manua 1. These facilities must be designed to treat the runoff from the entire
HUG-26-2085 FPI 07:47 TEL:[phone] NAME:DWO-WETLANDS P. 3
08!26%2005 09:23 FAY
16004
Centex Homes
Page 3 of 4
October 22, 2004
project, unless otherwise explicitly approved by the Division of Water Quality. Also, before any
permanent building is occupied at th6 subject site, the facilities (as approved by this Office) shall be
constructed and operational and the stormwater management plan (as approved by this Office) shall
be implemented. The structural stormwater practices as approved by this Office as well as drainage
patterns must be maintained in perpetuity. No changes to the structural stormwater practices shall be
made without written authorization from the Division of Water Quality.
5. Erosion & Sediment Control Practices
Erosion and sediment control practices must be in full compliance with all specifications governing
the proper design, installatic?n and operation and maintenance of such Best Management Practices in
order to protect surface wants standards:
a. The erosion and sediment control measures for the project must be designed, installed,
operated, and mainl.ained in accordance with the most recent version of the North Carolina
Sediment and Erosion Control Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal, or exceed, the requirements specified in the most
recent version of th•-: North Carolina Sediment and Erosion Control Manual. The devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
including contracto-owned or leased borrow pigs associated with the project.
6. No Waste, Spoil, Solids, or FW of Any Kind
1
No waste, spoil, solids, t,r hill of any kind shall occur in wetlands, waters, or riparian areas beyond
the footprint of the impacts depicted in the Pre-Construction Notification. All construction
activities, including die, iesign, installation, operation, and maintenance of sediment and erosion
control Best Management Practices, shall be performed so that no violations of state water quality
standards, statutes, or rules occur.
7. No Sediment & Erosion Control Measures w/n Wetlands or Waters
sediment and erosion control measures shall not be placed in wetlands or waters to the maximum
extent practicable. If placement of sediment and erosion control devices in wetlands and waters
is unavoidable, they shal l be removed and the natural grade restored within six months of the date
that the Division of Land Resources has released the project.
S. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable
Buffer Rules, and any srbsequent modifications, the applicant is required to return the attached
certificate of completion to the 401/Wetlands Unit, North Carolina Division of Water Quality,
1650 Mail Service CentEr, Raleigh, NC, 27699-1650.
Violations of any condition here- n set forth may result in revocation of this Certification and may result in
criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct
impacts to waters as depicted in lour application and as authorized by this Certification shall expire upon
expiration of the 404 or CAMA :'ermit.
if you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask f6 an adjudicatory hearing. You must act within 60 days of the date that
RUG-26-2005 FRI 07:47 TEL:[phone] NAME:DWQ-WETLANDS P. 4
Q8%26/2065 09:23 FAY
0005
Centex Hordes
Page 4 of 4
Qctgber 22, 2004
you receive this letter. To ask fer a hearing, send a written petition, which conforms to Chapter 150B of
the North Carolina General Statt tes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certifica#on and its conditions are final and banding unless you ask for a
hearing.
Any disputes over determination:; regarding this Authorization Certificate (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is
subject to review as provided in, -articles 3 and 4 of G.S. 1.50B_
This letter completes the review )f the Division of Water Quality under Section 401 of the Clean Water
Act and the Neuse riparian buffe,• protection rule as described within 15A NCAC 2B .0233. If you have
any questions, please telephone John Dorney at 919-733-9646 or Bob Zarzecki at 919-733-9726.
AWKICBK/bz
Enclosures: GC 3402
Certificate of Completion
cc: Todd Preuninger, S&.EC
USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional efface
DI:R Raleigh Regional Office
File Copy
Central Files
Sincerely, j?
Alan W. Klimek, P.E.
Filename: 04-1130 Harrington Point Subdivision (Wake) 401 NBR
AUG-26-2005 FRI 07:47 TEL:[phone] NAME:DWQ-WETLANDS F. 5
O;g!26/ 2005 09:23 FAX
A
U006
Michael F, Easley, Govcmor
William G. Rom; Jr., Secretary
North Carolina I)epument of Environment and Natural Resources
Q
Alan W. Mmek, P.E. Director
Division of Water Quality
North Carolina Division of Water Quality
401 Water Quality Certification
Summary)f Permitted Impacts and Mitigation Requirements
in accordance with 15A NCAC 2H.0500, Centex Homes has permission as outlined below to impact 250
linear feet of perennial streams for the purpose(s) of constructing two roads at the proposed Harrington
Point S/D in Wake County. All bctivities associated with these authorized impacts must be conducted
witb the conditions listed in the attached Permit transn-ittai letter. THIS PERMIT IS NOT VALID
WITHOUT TEE ATTACHMENTS.
COMPENSATORY MITIGATION REQUIREMENTS, ECOSYSTEM ENHANCEMENT PROGRAM
LOCATION:
COUNTY
BASIN/ SUB BASIN
Raleigh
Wake
03-(14-02, 27-33-9
N
As required by 15A NCAC 2H.0700, and the conditions of this,Permit, you are required to compensate
for the above impacts through tht 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 requirerients proposed to be mitigated through the Ecosystem Enhancement
Program must be rounded to one-quarter acre increments and linear foot requirements must be rounded up
to the nearest foot according to Li 2R.0503(b).
Mitigation:
250 Linear feet of stream bw fers
One of the options you have avaii.able to satisfy the compensatory mitigation requirement 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 Ecosystem Enhancement Program at the address below. An invoice for
the appropriate amount of payment will be sent to you upon receipt of this form. PLEASE NOTE, THE
ABOVE IMI'ACTS ARE NOT AU'THORU ED UNTIL YOU RECEIVE NOTIFICATION THAT
YOUR PAYMENT HAS BEEN PROCESSED BY THE ECOSYTEM ENHANCMENT PROGRAM.
Signature Date
ECOSYSTEM ENHANCEMENT PROGRAM
1619 Mail Service Center
RALEIGH, N.C. 27669-1619
[phone]
Filename: 041130
4A1 Wetlands Cartilicatlon Unit
1550 Mal Serko Center, Ratelgh, North Catok a 27899.165(
2321 Grabtfoe SWeverd, Sulte 250, Ralal h, North Carolina 's 76N
Phone: [phone] /FAX [phone]/ Internet tgKan,?o.enr. tlands
one
Npgth??V
RUr;-25-2005 FRI 07:47 TEL:[phone]? ? NANE:DWQ-WETLANDS P. 6
08/26%2005 (19:22 FAX [a 001
I
Soil & Environmental. Consultants, PA
1 1010 Raven Ridge Rood • Raleigh. North C':trolin:i 27614 • I'hgnc: lNlQ; 646.5900 - F:tv {4i U) ?WO.9467
wu-,".sand l C.cot n
FACSIMILE SHEET
FAX NO. (9199) 846-9467
DAT'E:la? J? Project Number:_y - l(30
TO: NAME : CC;

FAX NUMBER: +3'r- (-"J"3
FROI1 °{O SUBJECT:
The following items are being fixed. Number of pages including transinittal sheet.
For Your Comments/Approval
X Per Glor Conversation
Please Advise
Would Like To Discuss
For Your Inforniation
Per Your Request
Please Call
Please Handle
HARD COPY SENT:
US Regular Mail
Overnight
REMARKS:
Hand Delivery
X No Lard Copy Sent
IF YOU HAVE ANY PROBLE14S WITH THIS TRANSMISSION, PLEASE
CONTACT AT [phone].
*CONFIDENTIALITY NOTICE*
This transmission is intended only liar die t se of the individual or entity to which it is addressed and may contain infix-mation that is
privileged and confidential. If the reader of this message is not the intended recipient, you are hereby notified that any discltsUr•e,
distribution or copying of this information s strictly prohibited. il"you have received this transmission in error, please notify us
immediately by telephone and return the fa <ed documents to us at the abvvc address via the United StaLcs PUStal Service.
(3orlollC tlflli N' [r fidgnhUr?1 ?til ll.L•.:
_-,6 L.ePhilhp -1 gore, ``mlv t.. 2>;i7•F, I.:..and:rlc 1.lrica
C'slwold. NC 21SO25 t re.:mhoio. NC 'W;
Phni,e: '7191 Phone. i 36) i40-N,; 14
AUG-26-2005 FRI 87:46 TEL:[phone] NAME:DWQ-WETLANDS F. 1
o . L_c-) . o I C-vd-(,J
Project Name: Harrington Pond 1
Project No. DWQ 041130
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations
Permanent Pool (ft) 497 3
Temporary Pool (ft) 498 1 ft. depth ok
areas
Permanent Pool SA (sq ft) 16950 10504 s t. ok
Drainage Area (ac) 12.29
In
2 7-v
Impervious Area (ac) 5.78 %
C4 -
Forebay (ft2) 2542 0 ok .
High Marsh (ft2) 5933 35.0 % ok
Low Marsh (ft2) 5933 35.0 % ok
Micropool (ft2) 2542 14.99705 % ok
100%
volumes
Temporary Pool (cu ft) 16900 21114 cu. ft. check tempo
other parameters
SA/DA
Orifice Diameter (in)
Design Rainfall (in)

1.96 25 it
1. drawdown - Z '
0.2 d drawdown check drawn
Linear Interpolation of Correct SA/DA***
Next Lowest
Project Impervious
Next Highest
3 ft. Permanent Pool Depth
% Impervious SA/DA from Table
40 1.73
47.0 1.96
50 2.06
/o . 2-0 - otf c vdt,-)
Project No. DWQ 04-1130
Project Name: Harrington Pointe
SUBMITTED DESIGN: REQUIRED DESIGN:
elevations Z_

Permanent Pool (ft) 508.5 0.75 ft. depth check depth
Temporary Pool (ft) 509.25
areas
Permanent Pool SA (sq ft) 4600 39964 sq. ft. check surfac
Drainage Area (ac)
Impervious Area (ac) 1.23 6; impervious
Rational C 0.59
Size % 5 no sand underdrain
volumes
Inlet Velocity 1.4 0 fps check veloci
Inlet Flow Depth 2.5 in
Depth to Ground Water 6 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr ok
In-Situ Soil Infiltration 0.2 0.00 in/hr ok

ro • 2G • o ? C,( _ow
Project No. DWQ 04-1130
Project Name: Harrington Pointe
SUBMITTED DESIGN:
elevations
Permanent Pool (ft) 516.5
Temporary Pool (ft) 517.25
areas
Permanent Pool SA (sq ft) Z 3200
Drainage Area (ac) Q--2-. T3
Impervious Area (ac) 1.13
Rational C 0.65
Size % 5
volumes
b??- :#- 2
REQUIRED DESIGN:
/i
G d . (O
0.75 ft. depth check depth
31570 sq. ft.
?,ac
50.7 % ' pervious
no sand underdrain
check surfac
Inlet Velocity 1.2 0 fps check veloci
Inlet Flow Depth 2 in
Depth to Ground Water 6 6 ft
Planting Soil Infiltration 0.52 0.52 in/hr ok
In-Situ Soil Infiltration 0.2 0.00 in/hr ok

DWQ# Date Who Reviewed;
Plan Detail Incomplete
? Please provide a location map for the project.
? Please show all stream impacts including all fill slopes, dissipaters, and bank stabilization on the s' plan.
F1 Please show all and impacts including fill slopes.on the site plan.
? Please indicate all b er impacts on the site plan.
? Please indicate propose lot layout as overlays on the site plan.
? Please indicate the locatio of the protected buffers as overlays on the site
? Please locate all isolated or n -isolated wetlands, streams and other wate
? Please provide cross section det 'Is showing the provisions for aquati fe
? Please locate any planned sewer li n s on the site plan.
? Please provide the location of any pr osec
? Please provide detail for the stormwate
? Please specify the percent of project impe
? Please indicate all stormwater outfalls on th
? Please indicate the diffuse flow provision m
? Please indicate whether or not the proposed
Avoidance and/or Minimization Not Provided
of the State as overlays on the site plan.
passage.
Zarebased a ent practices as required by GC
es as required by GC
ed on the estimated built-out conditions.
e plan.
een conducted.
? The labeled as on the pl s does not ap ar to be necessary. Please eliminate the
information as to why it is necessary f r this project.
? This Office believes that the labeled on the plans
Please revise the plans avoid the impacts.
? This Office believes that the labeled on the plans as
Please revise the ans to minimize the impacts.
? The stormwater discharge at the location on the plans labeled
Please revise a plans and provide calculations to show 1
is not possible to achie a diffuse flow through the entire buffer then
practices that remove utrients before the stormwater can be dischar
or provide additioW
can be moved or reconfigured to avoid the impacts to the
can be moved or reconfigured to minimize the impacts to the
_ will not provide diffuse flow through the buffer because
diffuse flow will be achieved through the entire buffer. If it
iay be necessary to provide stormwater management
,throuah the buffer.
Other
? The /colete was insufficient because over 150 feet of stream and/or er 1 acre of wetland impacts were requested. Please
proviThis additional fee must be received before your applicah n can be reviewed.
? Pleastion(s) on the application.
Pleas ned copy of the application.
? Please provide copies of the application, copies of the site plans and oth supporting information.
Mitigation
? of compensatory mitigation is required for this project. -Please provide a ensatory mitigation plan. The
plan must conform to the requirements in 15 A NCAC 211.0500 and must be appropriate to the of impacts proposed.
? Please indicate which 404 Permit the USACE would use to authorize this project.
Environmental Consultants, PA
Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
RE: Nationwide Permit 39/401 certification/Buffer Compliance Request
Harrington Point Subdivision O C T 0 8 2004
Raleigh, Wake County, North Carolina
S&EC Project #: 6923.W1 DENR - WATER QUALITY
DWQ#: 04-1130 WETLANDS AND STORMWATER BRANCH
Dear Ms. Karoly:
We received a second letter (dated 9/23/04) requesting additional information for the proposed Harrington
Point subdivision and were surprised by Item I (Impact Justification), since this was not mentioned in our
I" on-hold letter. In designing the site plan efforts were made to minimize impacts, however, stream
impacts were unavoidable in order to access `high-ground'. We explored alternatives that would minimize
stream impacts; however, all scenarios proposed two stream crossings so that all areas of the site could be
utilized. As detailed in the attached letter we felt that a stream crossing located upstream of the wetlands
would lead to a reduction in wetland function due to the concentration of stormwater below the culvert. In
addition we believe that the alternative crossing proposed by DWQ would also impact an important
channel. Although we are proposing crossing the same channel twice - this seemed to be the least
detrimental to the natural resources located within the project boundaries.
Item 2 - We are not requesting to impact wetlands on-site prior to your review and approval of the
stormwater plans. Completed stormwater plans (including DWQ worksheets) were included for Phase I of
the proposed subdivision in our initial application. As you stated, much of the construction and access to
the site can occur from existing roads. In fact, phase I of the subdivision can be completed without impacts
to streams or wetlands and this is what we proposed in our application. However, the final stormwater
plans for the future phases (where the impacts will occur) have not been completed. The applicant has
provided preliminary drainage information in order to demonstrate that sufficient space has been set aside
for the appropriate BMP devices (i.e. constructed wetlands). We are suggesting that the future impacts be
approved but will not be constructed until DWQ has reviewed the completed stormwater plans.
Item 3- A site meeting with Ms. Debbie Edwards was conducted on Monday, October 4, 2004. Her letter is
attached.
We hope that this additional information will allow you to complete your review of the application for the
proposed impacts at the Harrington Point.
Sincerely,
?/ ofrrD?
Todd Preuninger
Biologist/Environmental Scientist
Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: [phone]
Fax: [phone]
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: [phone]
Fax: [phone]
?? ? ?l" ? ?1p04
NCDENR-DWQE J 1,
Attn: Mr. John Dorney
2321 Crabtree Blvd., Ste. 250
Raleigh, NC 27604
A74LA.
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
October 4, 2004
Centex Homes
Attn: Kelly Race
2301 Sugar Bush Road, Suite 400
Raleigh, NC 27610
Subject Property: Harrington Point
UT to Sycamore Creek
DWQ EXP # 04-1567
Wake County
On-Site Determination for Applicability to the Neuse River Riparian Area Protection Rules
(15A NCAC 2B.0233)-EXPRESS REVIEW PROGRAM
Dear Sir or Madam:
On October 4, 2004, at your request I conducted an on-site determination to review one feature
located on the subject property for applicability to the Neuse Buffer Rules (15A NCAC 2B
.0233). The feature is labeled as "A" on the attached maps initialed by me on October 4, 2004.
The Division of Water Quality (DWQ) has determined that the feature labeled as "A" on
the attached maps is subject to the Neuse Buffer Rule, the origin of the feature has been
delineated and flagged in the field. The origin starts off property and remains subject to
flag #LM11, this feature then is not subject from flag #LM11 to #100, at flag #100 the
feature picks up stream like features again and is subject from flag #100 through to the
confluence of feature B. All other features on this site were not contested and therefore not
evaluated in the field so they remain subject to the Neuse Buffer Rule. These features and
their associated buffers should be identified on any future plans for this property. The owner (or
future owners) should notify the DWQ (and other relevant agencies) of this decision in any
future correspondences concerning this property. This on-site determination shall expire five (5)
years from the date of this letter.
Landowners or affected parties that dispute a determination made by the DWQ or Delegated
Local Authority that a surface water exists and that it is subject to the buffer rule may request a
determination by the Director. A request for a determination by the Director shall be referred to
the Director in writing c/o John Dorney, DWQ Wetlands/401 Unit, 2321 Crabtree Blvd.,
Raleigh, NC 27604-2260. Individuals that dispute a determination by the DWQ or Delegated
Local Authority that "exempts" a surface water from the buffer rule may ask for an adjudicatory
hearing. You must act within 60 days of the date that you receive this letter. Applicants are
hereby notified that the 60-day statutory appeal time does not start until the affected party
(including downstream and adjacent landowners) is notified of this decision. DWQ recommends
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650 One
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 North Carolina
Phone: [phone] / FAX [phone] / Internet: http://h2o.enr.state.nc.us/ncwetlands Na 1mra //m
ilk
it
500
Bayleaf Quad EXP 04-1567
Project M Scale:
02.6923 1"=2000' Figure 1- USGS Quad
Project Date: Strickland Road 1540 ? Soil & Environmental Consultants, PA
Mgr.: SC 03121/02 Jesse Satterwhite 11010 Raven Ridge Rd. Raleigh, NC 27614
Wake County, Raleigh, NC [phone] [phone]
Web Page: www.SandEC.com

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Wake County Map
Sheet Number 18

Project #: Scale:
02.11923 1" =1320'
Figure 2 - Soil Survey
Project Date: Strickland Road / 540
Mgr.: sc 03121102 Jesse Satterwhite
Wake County, Raleigh, NC

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Soil & Environmental Consultants, PA
11010 Raven Ridge Rd. Raleigh, NC 27614
[phone] [phone]
Web Page: www.SandEC.com
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LEGEND:
Soil d4 Ea?troanseatal Conaultausts, Inc.
WETLANDS/I1NEAR WETLANDS [mast be confirmed by the USACE) ....... ven Ridge Road, KKb North Carolina 27614
Phone: [phone]-: [phone]
= MARGINAL WETLANDS Jm to be eomfirmed by the USACEJ
(• = WATERS OF THE U.S. SUBJECT TO THE NEUSE RIVER 50 fl- BUFFERS Jie., intetnitteot Project: S&EC Project # 02-6923 - Leesville Road / 540 Site
streams; mast be eoafirmed by the USACE sad DWQJ &
l ? L • '7trcv. n,ca?, 1
,?,, PYCl:mdnaq Wetland APPso,dmatlon j
?T =TIE TO "u"'"brrmlilalmrPwafncw
b )
SsEC rew..a ms drdu an of , based.o bon fnHworl[, f1
C =CHANNEL ?er.d aera<.de„s .aa m .ar .mer .dawea.I taram.l;ea.
MPrwiaa
tlux lbos woe °sP?ed -v bpwvbic auW and DwuM trurbine.
If us ve b be seed, tlu.7 awM 6e spprwvsd and
PL = PROPERTY LINE 1 vauaed h a e us. arQ rare. et 8npncen.
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0 277 554 830 1107
OCT-7-2004 13:58 FROM:PRIEST CRAVEN ASSOCI 919-782-1288 TO:8469467 P.2
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
Date : October 6, 2004
To : Todd Preuninger, S&EC
From : Tommy Craven
Re : Harrington Point
There is a triangular shaped piece of land of approximately four and a half acres
bounded on two sides by the two streams crossing the property, and on the third
side by a residential subdivision, which did not extend its streets to this property
line for a future connection. The only way to access this four and a half acre
portion of the site is with a second stream crossing. We chose to make the
second stream crossing as indicated on the plans for three reasons.
We believed that the more important stream was the one that drains to the
south from a currently undeveloped watershed beginning at Leesville
Road, through the existing pond, and along the large pocket of wetlands
located near the confluence of the two streams. We chose not to cross
this stream. The stream that we propose to cross has a significant portion
of its upper reach destroyed by the interchange at 1-540 and a portion of
the stream contained within a residential subdivision that was recorded
prior to the application of the buffer requirements. It appears to us that the
crossing as proposed is of lesser environmental consequence than the
alternative crossing location.
2. Crossing the other stream, just upstream of the large pocket of wetlands
located at the confluence of the two streams, would actually have a
greater impact in wetlands area, channel length and Neuse Buffer area
due to the topographic constraints of making the connection to the
proposed street to the east. With less distance from the intersection to the
creek, the road elevation at the crossing would be significantly higher than
the creek elevation, causing greater impacts due to the fill slopes. In an
effort to minimize our impacts, we felt the crossing as proposed would be
less of an impact.
3. We were afraid that construction from a crossing of the other stream
would greatly increase the chance of damaging the large pocket of
wetlands located at the confluence of the two streams with sediment and
increased stormwater runoff and velocities.
PLANNERS /LANDSCAPE DESIGNERS / ENGINEERS / SURVEYORS
3803-B Computer Drive, Suite 104, Raleigh NC 27609. Phone [phone]. Fax [phone]
?OF W ATFRO Michael F. Easley, Governor
`O G William G. Ross Jr., Secretary
co North Carolina Department of Environment and Natural Resources
O Alan W. Klimek, P.E. Director
Division of Water Quality
September 23, 2004
DWQ Project # 04-1130
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Grey Methven
Centex Homes
2301 Sugar Bush Road
Raleigh, NC 27608
Subject Property: Harrington Point subdivision
REQUEST FOR MORE INFORMATION
Dear Mr. Methven:
On September 22, 2004, the Division of Water Quality (DWQ) received your additional information for
the application dated July 12, 2004 to impact 0.224 acres of we?ands and 250 feet of streams to construct
the proposed Harrington Point subdivision near I-540 and Lees Ville Rd. The DWQ has determined that
your application was incomplete and/or provided inaccurate information as discussed below. The DWQ
will require additional information in order to process your application to impact protected wetlands
and/or streams on the subject property. Therefore, unless we receive the additional information requested
below, we will have to move toward denial of your application as required by 15A NCAC 2H .0506 and
will place this project on hold as incomplete until we receive this additional information. Please provide
the following information so that we may continue to review your project.
Additional Information Requested:
1. Impact Justification (Avoidance and Minimization)
Under Section VII of your application you did not provide a "justification" for the impacts as
requested within this section. We do not believe that you need to impact the same channel twice.
Please redesign your project to have one crossing on the main tributary and (if needed) a second
crossing on the separate tributary at the rear of lots 185 through 190.
2. Stormwater Management
In your recent letter, you requested that the stream crossings be approved "... with the condition that
construction will not begin on future phases until the final stormwater plans have been reviewed and
approved...". As you may be aware, our typical process is to require approval of the final
stormwater plans before impacts occur to wetlands, streams or buffers so we can be certain that the
devices will be installed correctly. In this case, you have not described any compelling reason,,for
changing this process. Indeed, much of the construction and access to the site can occur from
existing roads. Therefore, we believe that approval of the final stormwater plans should be done
before the streams are impacted.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: htto://h2o.enr.state.nc.us/ncwetiands
One
f Carolina
No
NatOra!!y
An Equal Opportunity/Affirmative Action Employer- 509/6 Recycled/10% Post Consumer Paper
Harrington Point subdivision
Page 2 of 2
September 23, 2004
3. Stream and buffer determination
As stated in our earlier letter and reiterated in your response, we will await the written confirmation
of the stream location from DWQ (Ms. Debbie Edwards) before we can issue the approval. Please
refer to this project number when copying us with the written determination.
Please respond within three weeks of the date of this letter by sending this information to me in writing
and Mike Horan of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks,
we will assume that you no longer want to pursue this project and we will consider the project as
withdrawn.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters
or protected buffers. Please be aware that any impacts requested within your application are not
authorized (at this time) by the DWQ. Please call Mr. John Dorney at 919-733-1786 if you have any
questions regarding or would like to set up a meeting to discuss this matter.
401 nit
JRD/jrd
cc: Debbie Edwards
Mike Horan, DWQ Raleigh Regional Office
Jennifer Burdette, USACE Raleigh Regulatory Field Office
File Copy
Central Files
Todd Prueninger, Soil and Environmental Consultants
Filename: 041130HarringtonPoint(W ake)ONHOLD
a
SCALE. I' -4W
-P ARR I N GT ON POINT OATS WARGi 31, 26104
PROJECT. 1908-028.001
J
C)
O
d
J
WETLP.ND I
IMPACT MAP
OF WATF9o Michael F. Easley, Governor
William G. Ross Jr., Secretary
tom- Nort h Carolina 13r Chtf? atural Resources
Alan ek, P.E. Director
Division of Water Quality
September 23, 2004
DWQ Project # 04-1130
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Grey Methven
Centex Homes
2301 Sugar Bush Road
Raleigh, NC 27608
Subject Property: Harrington Point subdivision
REQUEST FOR MORE INFORMATION
Dear Mr. Methven:
On September 22, 2004, the Division of Water Quality (DWQ) received your additional information for
the application dated July 12, 2004 to impact 0.224 acres of wetlands and 250 feet of streams to construct
the proposed Harrington Point subdivision near I-540 and Leesville Rd. The DWQ has determined that
your application was incomplete and/or provided inaccurate information as discussed below. The DWQ
will require additional information in order to process your application to impact protected wetlands
and/or streams on the subject property. Therefore, unless we receive the additional information requested
below, we will have to move toward denial of your application as required by 15A NCAC 2H .0506 and
will place this project on hold as incomplete until we receive this additional information. Please provide
the following information so that we may continue to review your project.
Additional Information Requested:
1. Impact Justification (Avoidance and Minimization)
Under Section VII of your application you did not provide a "justification" for the impacts as
requested within this section. We do not believe that you need to impact the same channel twice.
Please redesign your project to have one crossing on the main tributary and (if needed) a second
crossing on the separate tributary at the rear of lots 185 through 190.
2. Stormwater Management
In your recent letter, you requested that the stream crossings be approved "... with the condition that
construction will not begin on future phases until the final stormwater plans have been reviewed and
approved...". As you may be aware, our typical process is to require approval of the final
stormwater plans before impacts occur to wetlands, streams or buffers so we can be certain that the
devices will be installed correctly. In this case, you have not described any compelling reason?for
changing this process. Indeed, much of the construction and access to the site can occur from
existing roads. Therefore, we believe that approval of the final stormwater plans should be done
before the streams are impacted.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: htta://h2o.enr.state.nc.us/ncwetlands
None Caro na
tura?y
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
NCDENR-DWQ
Attn: Mr. John Dorney
2321 Crabtree Blvd., Ste. 250
Raleigh, NC 27604

RE: Nationwide Permit 39/401 certification/Buffer Compliance Request
Harrington Point Subdivision
Raleigh, Wake County, North Carolina
S&EC Project #: 6923. W 1
DWQ#: 04-1130
Dear Mr. Dorney:
Fax: [phone]
September 21, 2004
WETLANDS / 401 GROUP
SEP 2 2 2004
WATER QUALITY SECTION
We received your letter requesting additional information for the proposed Harrington Point subdivision.
Item 1 requested the buffer letter. Although Mr. Steve Mitchell conducted a site meeting, no letter was
written to verify his buffer determination. We have been unable to contact Mr. Mitchell. In order to
facilitate the review process, we have requested an express buffer meeting with Ms. Debbie Edwards. We
will forward the buffer letter following this meeting.
The on-hold letter also requests that we include plans illustrating diffuse flow provisions for the two road
crossings. As stated in our initial application, the stormwater plans have not been finalized for the entire
site. Moreover, all stormwater will be treated using constructed wetlands or bio-retention devices and
therefore, we do believe additional diffuse flow measures are required. We have included the preliminary
Stormwater analysis for the entire site. Adaquate space has been reserved to allow the construction of the
appropriate BMP devices. We are requesting that the road crossings be approved with the condition that
construction will not begin on future phases until the final stormwater plans have been reviewed and
approved by your office.
Sincerely,
Todd Preuninger
Biologist/Environmental Scientist
Attachments:
Harrington Point stormwater analysis
On-hold letter
Cc: Mr. Mike Horan - DWQ
Charlotte Office: Greensboro Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive
Concord, NC 28025 Greensboro, NC 27455
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
O?O? W AT ?R?G
r
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
August 25, 2004
DWQ Project # 04-1130
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Grey Methven
Centex Homes
2301 Sugar Bush Road
Raleigh, NC, 27608
Subject Property: Harrington Point
REQUEST FOR MORE INFORMATION
AUG 3 0 2??. .
Dear Mr. Methven:
On July 13, 2004, the Division of Water Quality (DWQ) received your application dated July 12, 2004 to
impact 0.224 acres of wetlands, 250 feet of streams and 0.555 acre of Neuse Buffers to construct the
proposed subdivision. Your application has been forwarded to Mr. Mike Horan of the DWQ Raleigh
Regional Office. Mr. Horan has met with Mr. Todd Preuninger on August 23, 2004 to discuss details
needed so that we can complete our review of your application. We understand that the items listed
below were discussed at that time and are to be forwarded to this Office and to Mr. Horan. Please note
that unless we receive the additional information requested below, we will have to move toward denial of
your application as required by 15A NCAC 2H.0506. At this time we will place this project on hold as
incomplete until we receive this additional information. Please provide the following information so that
we may continue to review your project.
Additional Information Requested:
1. Buffer Determination
Please provide a copy of the Buffer Determination made for this site.
2. Diffuse Flow Plans
Please provide plans illustrating diffuse flow provisions for the two road crossings, along with
calculations used in design.
Please respond within three weeks of the date of this letter by sending this information to me in writing
and Mike Horan of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks,
we will assume that you no longer want to pursue this project and we will consider the project as
withdrawn.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699.1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: httpJ/h2o.enr.state.nc.us/ncwetlands
None Carolina
Naturally
An Equal Opportunity/Affirmative Action Employer - 500/6 Recyded/100/6 Post Consumer Paper
Mr. Grey Methven
Page 2 of 2
August 25, 2004:
This letter only addresses the application review and does not authorize any impacts to wetlands, waters
or protected buffers. Please be aware that any impacts requested within your application are not
authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. John Dorney at 919-733-1786
if you have any questions regarding or would like to set up a meeting to discuss this matter.
Sincerely,
John Dorne
Y•
DWQ, Wetlands / 401 Unit
JRD/cbk
cc: Mike Horan, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy .
Central Files
Todd Preuninger, 11010 Raven Ridge Road, Raleigh, NC, 27614
Filename: 041130Harrington(Wake)HLD
1??
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
September 14, 2004
Mr. Todd Preuninger
Soil and Environmental Consultants, PA
11010 Raven Ridge Road
Raleigh, NC 27614
Re : Harrington Point
Raleigh, NC
DWQ Project # 04-1130
Dear Todd :
WETLANDS / 401 GROUP
SEP 2 2 2004
WATER QUALITY SECTION
Please find enclosed two copies of the preliminary Stormwater Analysis for
Harrington Point. This preliminary analysis was prepared with the preliminary plans
and covers the entire project. Detailed plans and design calculations will be prepared
as part of the construction drawing design process for each phase as the project
progresses.
As illustrated in the analysis all runoff from developed areas will be treated in either
an extended detention wetlands or bioretention basin.
It is our understanding that runoff from these devices can be discharged directly to
the buffers and that level spreaders and diffuse flow requirements do not apply.
If our understanding is incorrect, please let us know and we will revise the plans
accordingly.
Sincerely,
7L. f
Thomas F. Craven, PE
Priest, Craven & Associates, Inc.
PLANNERS /LANDSCAPE DESIGNERS / ENGINEERS / SURVEYORS
3803-B Computer Drive, Suite 104, Raleigh NC 27609. Phone [phone]. Fax [phone]
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS

HAR.R.INGTON POINTE
A CLUSTER UNIT DEVELOPMENT OF ATTACHED AND
DETACHED TOWNHOMES
LEESVILLE ROAD, RALEIGH, NC
PRELIMINARY STORM WATER
ANALYSIS
SEPTEMBER 10, 2003
_ PLANNERS /LANDSCAPE DESIGNERS / ENGINEERS / SURVEYORS
7 3803-B Computer Drive, Suite 104, Raleigh NC 27609. Phone [phone]. Fax [phone]
HARRINGTON POINTE CLUSTER UNIT DEVELOPMENT - LEESVILLE ROAD
PRELIMINARY STORM WATER RUNOFF ANALYSIS
ABSTRACT
This analysis has been conducted in order to comply with the requirements of City of Raleigh's Neuse
River Nutrient Management requirements.
Harrington Pointe is a 266 unit townhome development proposed for a 70.8 acre tract of land located
on Leesville Road in north Raleigh. The tract is zoned Residential - 4 with SHOD-1 overlay. The
overall density is proposed to be approximately 3.8 homes per acre.
The proposed development is to be a combination of attached and detached townhomes within a
cluster unit development.
This analysis was prepared using the following available sources of information :
1. Boundary data from Wake Co. Registry and City of Raleigh GIS data.
2. City of Raleigh 200 scale aerial topographic mapping.
4. USDA, SCS, Soil Survey for Durham County, NC.
5. FEMA Flood Insurance Rate Map for Raleigh, NC.
6. Preliminary subdivision plans for Harrington Pointe prepared by this office.
This analysis is based on the hydrologic and hydraulic principles and methodologies documented in
I* the following publications :
1. USDA, SCS, National Engineering Handbook, Section 4, Hydrology (NEH-4)
2. SCS Technical Release 55
3. SCS Technical Release 20
4. Elements of Urban Stormwater Design by H. Rooney Malcom, P.E.
Discharges for all Drainage Points were calculated using TR-55 methodology.
Runoff volumes were calculated using SCS methodology as outlined in NEH-4, TR-20 and TR-55.
Times of concentration were determined using TR-55 methodology.
While the numbers and values generated in this analysis are not absolutely correct, the analysis has
been performed in a consistent fashion such that the results are sufficient for the comparison of the
before and after development conditions. This analysis and its conclusions will need to be verified
during the site plan development and review process.
•
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: PREDEVELOPMENT CONDITIONS - SHEET 1
Subarea #1 - DP2
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft)
--- code
--------- (sq/ft) (ft) (ft/sec)
---------------------------- (hr)
------
-------------------
Sheet 3.6 ---------
100 -----
.04 E 0.117
Shallow Concent'd 190 .04 U 0.016
Time of Concentration = 0.13*
Subarea #2 - DP3
Flow Type 2 year Length Slope Surface n Area WP Velocity Time

- rain (ft) (ft/ft) code
----------- (sq/ft)
---------- (ft)
------- (ft/sec)
--------- (hr)
------
--------
----
Sheet -------
3.6 --------
100 --------
.05 J 0.095
Shallow Conce nt'd 200 .03 U 0.020
Open Channel 830 .02 .0454.0 6.0 0.065
Time of Concentration = 0.18*
------------- ------- -------- -- Subarea #3 - DP4 --------- ------- --------- ------
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code
----- (sq/ft)
---------- (ft)
------- (ft/sec)
--------- (hr)
------
-------------
Sheet ------
3.6 ---------
100 --------
.06 ------
J 0.088
Shallow Ccncent'd 100 .04 U 0.009
Open Channel 250 .025 .0454.0 6.0 0.017
Time of Concentration = 0_11*
Subarea #4 - DP5
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
--------------- (hr)
------
--------------------
Sheet 3.6 --------
100 --------
.04 ---------
J ------------ - 0.104
Shallow Concent'd 100 .08 U 0.006
Open Channel 150 .03 .0454.0 6.0 0.010
Time of Concentration = 0.12*
0 -
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: PREDEVELOPMENT CONDITIONS - SHEET 1
Subarea #5 - DP6
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code
---- (sq/ft)
-------- (ft) (ft/sec)
----------- (hr)
---
-
--------------------
Sheet 3.6 --------
100 --------
0.03 -----
J ---- ----- --
0.117
Shallow Concent'd 200 .045 U 0.016
Open Channel 400 .06 .0454.0 6.0 0.018
Time of Concentration = 0.15*
Subarea #6 - DP7
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
----- (hr)
------
-------------
Sheet -------
3.6 --------
100 ---------
.04 ----------
H ---------- ------- ---- 0.256
Shallow Conce nt'd 200 .025 U 0.022
Open Channel 230 .03 .0454.0 6.0 0.015
Time of Concentration = 0.29*
------------- ------- -------- -- Subarea #7 - DP8 --------- ------- --------- ------
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft)- code (sq/ft) (ft)
- (ft/sec)
-------- (hr)
------
-------------
Sheet ------
3.6 ---------
100 ---------
.03 ----------
H ---------- ------ - 0.287
Shallow Concent'd 150 .03 U 0.015
Open Channel 450 .08 .0454.0 6.0 017
40 Time of Concentration = -0
0.32*
Subarea #8 - DP9
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
------- (hr)
------
--------------------
Sheet 3.6 --------
100 --------
.06 ----------
H ----------- --------- 0.217
Shallow Concent'd 200 .08 U 0.012
Open Channel 800 .05 .0454.0 6.0 0.039
Time of Concentration = 0.27*
Subarea #9 - DP10
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
----- (hr)
------
----------------------
Sheet 3.6 -------
100 ----------
.03 ---------
H -------------------- 0.287
Shallow Concent'd 2G0 .045 U 0.016
Open Channel 1150 .04 . 0454.0 6.0 0.063
Time of Concentration = 0.37*
--- Sheet Flow Surface Codes -- -
A Smooth Surface F Grass, Dense --- Shallow Concentrate d ---
B Fallow (No Res.) G Grass, Burmuda --- Surface Codes ---
C Cultivated 20 °s Res. H Woods, Light P Paved
D Cultivated C 20 a Res. I Woods, Dense U Unpaved
rl
L
C
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: PREDEVELOPMENT CONDITIONS - SHEET 2
Subarea #1 - DP11
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft)
- code
--------- (sq/ft)
------------ (ft) (ft/sec)
---------------- (hr)
------
--------------------
Sheet 3.6 ---------
100 ------
-
.02 J 0.137
Shallow Concent'd 100 .03 U 0.010
Open Channel 300 .03 .0454.0 6.0 0.019
Time of Concentration = 0.17*
Subarea 42 - OP12
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sa/ft) (ft) (ft/sec)
------ (hr)
----
-
-------------------
Sheet 3.6 ---------
100 --------
.04 ---------
H ------------ ---------- -
0.256
Shallow Concent'd 150 .09 U 0.009
Open Channel 250 .05 .0454.0 6.0 0.012
Time of Concentration = 0.28*
Subarea #3 - DP13
•
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft} code (sq/ft) (ft) (ft/sec)
------ (hr)
------
------------------
Sheet 3.6 -----------
100 ----------
.06 ---------
J ------------------- 0.088
Shallow Concent'd 200 .03 U 0.020
Open Channel 1150 .04 .0454.0 6.0 0.063
Time of Concentration = 0.17*
--- Sheet Flow Surface Codes -- -
A Smooth Surfa ce F Grass, Dense --- Shallow Concentrate d ---
B Fallow (No R es.) G Grass, Burmuda --- Surface Codes ---
C Cultivated 20 o Res. H Woods, Liaht P Paved
D Cultivated 20 o Res. I Woods, Dense U Unpaved
E Grass-Range, Short J Range, Natural
•
TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: POST DEVELOPPIFNT CONDITIONS - SHEET 1
Subarea #1 - DP2
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code
--- (sq/ft) (ft) (ft/sec)
---------------------------- (hr)
------
--------------------
Sheet 3.6 --------
100 --------
.04 ------
F 0.170
Shallow Concent'd 190 .04 U 0.016
Time of Concentration = 0.19*
Subarea 42 - DP3
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft)
---
--- (ft)
------- (ft/sec)
--------- (hr)
------
--------------------
Sheet 3.6 --------
100 ---------
.04 -------
F ----
--- 0.170
Shallow Concent'd 130 .04 U 0.011
Open Channel 800 .02 .0131.76 4.71 0.026
Open Channel 250 .03 .0354.0 6.0 0.012
Time of Concent ration = 0.22*
-------------------- -------- -- Subarea 43 - DP4 --------- ------- --------- ------
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft)- code (sq/ft) (ft)
-- (ft/sec)
--------- (hr)
------
--------------------
Sheet 3.6 --------
50 --------
.02 --------
A ------------- ----- 0.011
Shallow Concent'd 100 .02 P 0.010
Open Channel 600 .02 .0131.77 4.71 020
Time of Concent ration = -0
0.04*
- - - - - - - - - - - - - - - - - - - - - - - ----- -- Subarea #4 - DP5 --------- -------- --------- ------
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft)
-- (ft/sec)
--------- (hr)
------
-------------------
Sheet 3.6 ---------
100 --------
.03 --------
F ------------- ----- 0.191
Shallow Concent'd 100 .04 U 0.009
Open Channel 120 .02 .0131.77 4.71 0.004
Time of Concentration = 0.20*

TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: POST DEVELOPMENT CONDITIONS - SHEET 1
Subarea #5 - DP6
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code
--------- (sq/ft)
------------ (ft) (ft/sec)
---------------- (hr)
------
-------------------
Sheet 3.6 ---------
100 ----- ---
.03 F 0.191
Shallow Concent'd 250 .06 U 0.018
Open Channel 250 .06 .0131.77 4.71 0.005
Time of Concentration = 0.21*
Subarea #6 - DP7
Flow Type 2 year Length Slope Surface n Area Wp velocity Time
rain (ft) (ft/ft) code
----- (sq/ft)
---------- (ft)
------- (ft/sec)
--------- (hr)
------
-------------
Sheet -------
3.6 --------
100 --------
.03 ------
F 0.191
Shallow Conce nt'd 100 .03 U 0.010
Time of Concent ration = 0.20*
------------- ------- -------- -- Subarea #7 - DP8 --------- ------- --------- ------
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code
----- (sq/ft)
---------- (ft)
------- (ft/sec)
--------- (hr)
------
-------------
Sheet -------
3.6 --------
100 --------
.04 ------
F 0.170
Shallow Concent'd 40 .05 U 0.003
Open Channel 900 .04 .0131.76 4.71 0.021
Time of Concentration = 0.19*
Subarea #8 - DP9
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
--------------- (hr)
------
--------------------
Sheet 3.6 --------
100 --------
.06 ---------
F ------------ - 0.144
Shallow Concent'd 200 .06 U 0.014
Open Channel 700 .06 .0354.0 6.0 0.024
Time of Concentration = 0.18*
Subarea #9 - DP10
Flow Type 2 year Length Slope Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft)
---
---- (ft) (ft/sec)
---------------- (hr)
------
-----------------------------
Sheet 3.6 100 ----------
.05 ---------
F -
- 0.155
Shallow Concent'd 100 .07 U 0.007
Open Channel 750 .04 . 0354.0 6.0 0.032
Time of Concentration = 0.19*
- Sheet Flow Surface Codes -- -
A Smooth Surface F Grass, Dense --- Shallow Concentrate d ---
B Fallow (No Res.) G Grass, Burmuda --- Surface Codes ---
20 o Res.
C Cultivated H Woods, Light P Paved
_
D Cultivated 20 % Res. I Woods, Dense U Unpaved
E Grass-Range, Short J Range, Natural

TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00
Project HARRINGTON POINTE User: TFC Date: 08/22/99
County WAKE State: NC Checked: Date:
Subtitle: POST DEVELOPMENT CONDITIONS - SHEET 2
Subarea #1 - DP11
Flow Type 2 year Length Slope Surface n Area Wp velocity Time
rain (ft) (ft/ft)
----- code
---------- (sq/ft)
----------- (ft) (ft/sec)
---------------- (hr)
------
-----------•---------
Sheet 3.6 --------
100 ---
.06 F 0.144
Shallow Concent'd 200 .03 U 0.020
Open Channel 230 .03 .0354.0 6.0 0.011
Time of Concentration = 0.18*
Subarea #2 - DP12
Flow Type 2 year Length Slope Surface n Area Wp velocity Time
rain (ft) (ft/ft) code
- (sq/ft)
-
--- (ft) (ft/sec)
-----------
- (hr)
------
--------------------
Sheet 3.6 --------
50 --------
.04 --------
F --
------ ---- 0.098
Shallow Concent'd 90 .04 U 0.008
Open Channel 350 .06 .0131.77 4.71 0.007
Open Channel 120 .03 .0354.0 6.0 0.006
Time of Concentration = 0.12*
Subarea #3 - DP13
•
Flow Type 2 year Length Slope- Surface n Area Wp Velocity Time
rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec)
------------
- (hr)
------
-----------------------------
Sheet 3.6 50 ----------
.02 ----------
F -------- --
- 0.129
Shallow Concent'd 50 .02 P 0.005
Open Channel 1300 .04 .0131.77 4.71 0.030
Time of Concentration = 0.16*
--- Sheet Flow Surface Codes -- -
A Smooth Surface F Grass, Dense --- Shallow Concentrate d ---
B Fallow (No Res.) G Grass, Burmuda --- Surface Codes ---
C Cultivated _ 20 a Res. H Woods, Light P Paved
D Cultivated 20 o Res. I Woods, Dense U Unpaved
E Grass-Ranae, Short J Range, Natural
11
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 3 - PREDEVELOPMENT DATE : AUGUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 0.54
2 CLEARED FIELDS B 69 0.35 7.00
3 UNDISTURBED WOODED AREAS B 60 0.20 5.54
TOTALS AND COMPOSITE NUMBERS 66.4 0.31 13.08
11
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.18 HR
10.8 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 66.4
Runoff = 0.875 inches
Runoff Volume = 41543 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 66.4
Runoff = 2.02 inches
Runoff Volume = 96025 cf
•
GRAPHICAL PEAK DISCHARGE METHOD
??Ct HARRINGTON POINTE
y WAKE State: NC
3L._..:itle : PRE DEVELOPMENT - DRAINAGE POINT 3
Data: Drainage Area 13.1 Acres
Runoff Curve Number 66
Time of Concentration: 0.18 Hours
Rainfall Type II
Pond and Swamp Area NONE
--------------------
Storm Number
1
2
Frequency (yrs) 2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.29 0.19
Runoff (in) 0.86 1.99
Unit Peak Discharge 1.154 1.229
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.00 Ponds Used
---- --------- -----
Peak Discharge (cfs)
13
32
11
User: TFC
Checked:
Version 2.00
Date: 09/10/99
Date:
•
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 3 - POSTDEVELOPMENT
WATERSHED LAND USE DATA
TRACT DESCRIPTION
NO.
-------------------------------
1 BUILDINGS AND STREETS
2 LANDSCAPE AREAS
3 UNDISTURBED WOODED AREAS
TOTALS AND COMPOSITE NUMBERS
TIME OF CONCENTRATION
By TR-55 methodology, printout attached

RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall
CN
Runoff =
Runoff Volume =
2 year storm
24 hour, 2 year rainfall
CN
Runoff =
Runoff Volume =
10 year storm
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
•
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
SOIL C.N
GROUP
B 98
B 61
B 60
77.0
C AREA

--------- AC.
--------
0.95 5.70
0.35 7.17
0.20 0.32
0.61 13.19
0.22 HR
13.2 MIN
1.00 inches
77.0
0.047 inches
982 cf
3.60 inches
77.0
1.503 inches
71956 cf
5.38 inches
77.0
2.94 inches
140800 cf
GRAPHICAL PEAK DISCHARGE METHOD
ect HARRINGTON POINTE
ty WAKE State: NC
Si-._citle: POST DEVELOPMENT - DRAINAGE POINT 3
Data: Drainage Area 13.2 Acres
Runoff Curve Number 77
Time of Concentration: 0.22 Hours
Rainfall Type II
Pond and Swamp Area NONE
----------------------
Storm Number -
1
---
2
------
----------------------
Frequency (yrs) ---
2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.17 0.11
Runoff (in) 1.51 2.94
Unit Peak Discharge 1.151 1.195
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0. Ponds Used
---- --------- -----
Peak Discharge (cfs)
23
46
Irk
u
User: TFC
Checked:
Version 2.00
Date: 09/10/99
Date.
0
LJ
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 982 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 30413
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C = 0.40 ac
17399 sf
Bioretention Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void ratio) 52197 cf
•
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 0.43 %
Surface Area to Drainage Area Ratio 1.9
Required Surface Area 0.25 ac
10917 sf
Surface Area Provided 11000 sf
40

TOTAL NITROGEN EXPORT WORKSHEET PROJECT. HARRINGTON POINTE - DRAINAGE POINT 3
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY'DESIGN MANUALS.
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRETREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
0 32 0 60 019
0 00 1 20 000
7 17 1 20 8 60
5 70 21 20 120 84
13 19 129 64
9 83
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 0 40 0 12
000
CONST WETLANDS 0 40 5 16
CONST WETLANDS 0.40 72 50
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
77.78
5 90
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0.12
0 00
NONE 5 16
NONE 72.50
77.78
590
3.60
FEE DUE $330 00 PER LB/ACRE $8.998.21
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 4 - PREDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 0.00
2 CLEARED FIELDS B 69 0.35 1.48
3 UNDISTURBED WOODED AREAS B 60 0.20 1.07
TOTALS AND COMPOSITE NUMBERS 65.2 0.29 2.55
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.11 HR
6.6 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 65.2
Runoff = 0.816 inches
Runoff Volume = 7554 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 65.2
Runoff = 1.93 inches
Runoff Volume = 17857 cf
C7
GRAPHICAL PEAK DISCHARGE METHOD
ect HARRINGTON POINTE
.ty WAKE State: NC
5,..__,.itle: PRE DEVELOPMENT - DRAINAGE POINT 4
Data: Drainage Area 2.55 Acres
Runoff Curve Number 65
Time of Concentration: 0.11 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
Storm Number
- ---
1
------
2
------
---------------------
Frequency (yrs) 2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.30 0.20
Runoff (in) 0.81 1.91
Unit Peak Discharge 1.409 1.472
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0. Ponds Used
---- --------- -----
Peak Discharge (cfs)
3
7
A
User: TFC
Checked:
Version 2.00
Date: 09/10/99
Date.
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME. HA RPTD2.123
DRAINAGE POINT 4 - POSTDEVELOPMENT DATE : AU GUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 1.32
2 LANDSCAPE AREAS B 61 0.35 1.36
3 UNDISTURBED WOODED AREAS B 60 0.20 0.19
TOTALS AND COMPOSITE NUMBERS 78.0 0.62 2.87
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.04 HR
2.4 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 78.0
Runoff = 0.058 inches
Runoff Volume = 277 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 78.0
Runoff = 1.570 inches
Runoff Volume = 16360 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 78.0
Runoff = 3.03 inches
Runoff Volume = 31594 cf
•
GRAPHICAL PEAK DISCHARGE METHOD
ect HARRINGTON POINTE
c ty WAKE State: NC
SL_-?itle: POST DEVELOPMENT - DRAINAGE POINT 4
Data: Drainage Area 2.87 Acres
Runoff Curve Number 78
Time of Concentration: 0.10 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
Storm Number - -
1
2
--------- -----
Frequency (yrs)
2
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.16 0.10
Runoff (in) 1.57 3.04
Unit Peak Discharge 1.545 1.575
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
---- --------- -----
Peak Discharge (cfs)
7
14
- ?
L-j
User: TFC
Checked:
version 2.00
Date: 09/10/99
Date:
0
•
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 277 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 8806 cf
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area * 0.05 * C = 0.09 ac
3851 sf
Bioretention Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void ratio) 11552 cf
•
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 0.46 %
Surface Area to Drainage Area Ratio 1.9
Required Surface Area 0.05 ac
2375 sf
Surface Area Provided 2380 sf

TOTAL NITROGEN EXPORT WORKSHEET PROJECT HARRINGTON POINTF - DRAINAGE POINT 4
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1. EXTENDED DETENTION WETLANDS AT EACI I DISCI LARGE POINT
2 PAYMENT OF FEE TO THE IIC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRETREATMENT
SITE AREA Tri EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
019 060 011
0 00 1 20 0 00
1 36 1 20 1 63
1 32 21 20 27 98
2 87 29 73
10 36
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY I AND USE FROM SITE
% I BS/YR LBS/AC/YR
COHST WETLANDS 0 40 0 07
0 00
CONST WETLANDS 0 40 0 98
CONST WETLANDS 0 40 16 79
LINDISTIJRBED OPEN SPACE
MANAGED OPEN SPACE
I AWN AND t ANDSCAPE
IMPERVIOUS SURFACES
IGTALS
AVERAGE PER SITE
All O1fJED TN
17 84
6 22
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 07
0 00
NOME 0 98
NONE 16 79
17 84
6 22
3 60
FEE DUE $330 00 PER LB/ACRE $2,47698
•
•
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 5 - PREDEVELOPMENT
WATERSHED LAND USE DATA
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
TRACT DESCRIPTION SOIL C. N.
NO. GROUP
------------------------------------------------------------------
------------------------------------------------------------------
1 BUILDINGS AND STREETS B 98
2 CLEARED FIELDS B 69
3 UNDISTURBED WOODED AREAS B 60
TOTALS AND COMPOSITE NUMBERS 65.0
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
10 year storm
24 hour, 2 year rainfall .
CN
Runoff =
Runoff Volume =
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
0.12 HR
7.2 MIN
3.60 inches
65.0
0.807 inches
8319 cf
5.38 inches
65.0
1.91 inches
19736 cf
C AREA
AC.
0.95 0.00
0.35 1.59
0.20 1.25
0.28 2.84
0
GRAPHICAL PEAK DISCHARGE METHOD
P,Wct HARRINGTON POINTE User: TFC
C y WAKE State: NC Checked:
Su--ltle: PRE DEVELOPMENT - DRAINAGE POINT 5
Data: Drainage Area 2.84 Acres
Runoff Curve Number 65
Time of Concentration: 0.12 Hours
Rainfall Type II
Pond and Swamp Area NONE

-----------------
--
Storm Number

1

2
------
--------------------
- -
Frequency (yrs) ------
2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.30 0.20
Runoff (in) 0.81 1.91

Unit Peak Discharge
1.361 i
1.427
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
---- --------- -----
Peak Discharge (cfs)
3
8

Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME :
DRAINAGE POINT 5 - POSTDEVELOPMENT DATE :
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C.
NO. GROUP
1 BUILDINGS AND STREETS B 9
2 LANDSCAPE AREAS B 6
3 UNDISTURBED WOODED AREAS B 6
TOTALS AND COMPOSITE NUMBERS 75.
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.2 HR
12.0 MIN

HARPTD2.123
AUGUST 22, 2 003

N. C AREA

--
----------- AC.
-------
8 0.95 1.12
1 0.35 1.66
0 0.20 0.06
6 0.58 2.84
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1inch storm
Rainfall 1.00 inches
CN 75.6
Runoff = 0.035 inches
Runoff Volume = 142 cf
2 year storm
10 year storm
24 hour, 2 year rainfall 3.50 inches
CN 75.6
Runoff = 1.338 inches
Runoff Volume = 13792 cf
24 hour, 10 year rainfall 5.38 inches
CN 75.6
Runoff = 2.81 inches
Runoff Volume = 28996 cf
•
GRAPHICAL PEAK DISCHARGE METHOD
Pct HARRINGTON POINTE User:
y WAKE State: NC Checked:
St.-. itle: POST DEVELOPMENT - DRAINAGE POINT 5
Data: Drainage Area 2.84 Acres
Runoff Curve Number 76
Time of Concentration: 0.20 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 --------
--------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.18 0.12
Runoff (in) 1.44 2.85
Unit Peak Discharge 1.18E 1.236
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.01 Ponds Used
----------------------
Peak Discharge (cfs) ------
5
10
------
=0
Version 2.00
TFC Date: 09/10/99
Date:
0
•
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 142 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 5473 cf
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area ' 0.05 " C = 0.08 ac
3609 sf
Sioretention Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void ratio) 10827 cf
•
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 0.39 %
Surface Area to Drainage Area Ratio 1.73
Required Surface Area 0.05 ac
2140 sf
Surface Area Provided 2150 sf
0
0 0 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT. HARRINGTON POINTE - DRAINAGE POINT 5
DATE. SEPT 10, 2003 F ILE NAME. TNHARRPT1.123
METHODLOGY AND TREATMENT REMOVAL RATES ARE T AKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISC HARGE POINT
2. PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
PRETREATMENT PRIMARY TREAT MENT
TYPE OF LAND COVER SITE AREA TN EXPORT TN EXPORT TN EXPORT BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
COEFF. BY LAND USE FROM SITE RATE BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR % LBS/YR LBS/AC/YR
UNDISTURBED OPEN SPACE 0 06 0 60 0 04 CONST WETLANDS 0 40 0 02
MANAGED OPEN SPACE 0 00 1 20 0 00 0 00
LAWN AND LANDSCAPE 1 66 1 20 1.99 CONST WETLANDS 0 40 1 20
IMPERVIOUS SURFACES 1 12 21 20 23 74 CONST. WETLANDS 0 40 14 25
TOTALS 2 84 25 77 15 46
AVERAGE PER SITE 9 07 5 44
ALLOWED TN 3 60
FEE DUE $330 00 PER LB/ACRE
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 02
0 00
NONE 1 20
NONE 14 25
15.46
5 44
3 60
$1,72894
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 6 - PREDEVELOPMENT
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO.
------------------------------------------- GROUP
---------------
--------
-------- AC.
---------
-------------------------------------------
1 BUILDINGS AND STREETS ---------------
B --------
98 --------
0.95 ---------
0.03
2 CLEARED FIELDS B 69 0.35 0.93
3 UNDISTURBED WOODED AREAS B 60 0.20 7.03
TOTALS AND COMPOSITE NUMBERS 61.2 0.22 7.99
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour,. 2 year rainfall
CN
Runoff =
Runoff Volume =
10 year storm
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
0.15 HR
9.0 MIN
3.60 inches
61.2
0.627 inches
18176 cf
5.38 inches
61.2
1.62 inches
46900 cf
fl
u
GRAPHICAL PEAK DISCHARGE METHOD
`P ' HARRINGTON POINTE User: TFC
y WAKE State: NC Checked:
SL.-citle: PRE DEVELOPMENT - DRAINAGE POINT 6
Data: Drainage Area 7.99 Acres
Runoff Curve Number 61
Time of Concentration: 0.15 Hours
Rainfall Type II
Pond and Swamp Area NONE
-
- -----------------------
-----------------------
Storm Number ------
------
1 -
- -------
-------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.36 0.24
Runoff (in) 0.62 1.60
Unit Peak Discharge 1.137 1.285
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.00i Ponds Used
----------------------
Peak Discharge (cfs) ------
6 ------
16
=0
Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 6 - POSTDEVELOPMENT DATE : AUGUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C.N. C AREA
NO.
------------------------------------------- GROUP
----------------
-----
------------ AC.
------
-------------------------------------------
1 BUILDINGS AND STREETS ----------------
B -----
98 ------------
0.95 ------
3.22
2 LANDSCAPE AREAS B 61 0.35 3.64
3 UNDISTURBED WOODED AREAS B 60 0.20 0.68
TOTALS AND COMPOSITE NUMBERS 76.7 0.59 7.54
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.21 HR
12.6 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 76.7
Runoff = 0.045 inches
Runoff Volume = 526 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 76.7
Runoff = 1.486 inches
Runoff Volume = 40664 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 76.7
Runoff = 2.92 inches
Runoff Volume = 79844 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
PIWct : HARRINGTON POINTE User: TFC
y : WAKE State: NC Checked:
Su.jcitle: POST DEVELOPMENT - DRAINAGE POINT 6
Data: Drainage Area 7.54 Acres
Runoff Curve Number 77
Time of Concentration: 0.21 Hours
Rainfall Type II
Pond and Swamp Area NONE
Storm Number 1 2
------
----------------------
Frequency (yrs) ------
2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.17 0.11
Runoff (in) 1.51 2.94
Unit Peak Discharge 1.173 1.217
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
---- --------- -----
Peak Discharge (cfs)
13
27

Version 2.00
Date: 09/10/99
Date:
0
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C =
Bicretention Area Planting Soil Depth
Ponding Depth
Storage Volume Provided ( assumes 50% void ratio )
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth
Impervious cover percentage of the tract
Surface Area to Drainage Area Ratio
Required Surface Area
Surface Area Provided
526 cf
22487 cf
0.22 ac
9733 sf
5 feet
6 inches
29200 cf
3 feet
0.43 %
1.9
0.14 ac
6240 sf
6250 sf

0 . . . 9 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT HARRINGTON POINTE - DRAINAGE POINT 6
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1. EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRE TREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
0 38 0 60 0 23
000 1 20 000
3 64 1 20 4 37
3 22 21 20 68 26
7 24 72 86
1006
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 040 014
0 00
CONST WETLANDS 0 40 2 62
CONST. WETLANDS 0 40 40 96
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
43 72
6 04
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0.14
000
NONE 2 62
NONE 40 96
43 72
6 04
3 60
FEE DUE $330 00 PER LB/ACRE $5.825 16
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 7 - PREDEVELOPMENT DATE : AUGUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO.
------------------------------------------- GROUP
-----------------
----
------------ AC.
-------
-------------------------------------------
1 BUILDINGS AND STREETS -----------------
B ----
98 ------------
0.95 -------
0.00
2 CLEARED FIELDS B 69 0.35 0.21
3 UNDISTURBED WOODED AREAS B 60 0.20 1.94
TOTALS AND COMPOSITE NUMBERS 60.9 0.21 2.15
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.29 HR
17.4 MIN
RUNOFF AMOUNTS
101 Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 60.9
Runoff = 0.613 inches
Runoff Volume = 4784 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 60.9
Runoff = 1.59 inches
Runoff Volume = 12438 cf

GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE
C ty WAKE State: NC
Su-citle: PRE DEVELOPMENT - DRAINAGE POINT 7
Data: Drainage Area 2.15 Acres
Runoff Curve Number 61
Time of Concentration: 0.29 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
Storm Number -
1
----
2
------
----------------------
Frequency (yrs) --
2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.36 0.24
Runoff (in) 0.62 1.60
Unit Peak Discharge 0.819 0.962
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.00 Ponds Used
---- --------- -----
Peak Discharge (cfs)
1
3
?J
User: TFC
Checked:
Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 7 - POSTDEVELOPMENT
WATERSHED LAND USE DATA
TRACT DESCRIPTION
NO.
--------------------------------------
--------------------------------------
1 BUILDINGS AND STREETS
2 LANDSCAPE AREAS
3 UNDISTURBED WOODED AREAS
TOTALS AND COMPOSITE NUMBERS
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.21 HR
12.6 MIN

RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
2 year storm
10 year storm
0
Rainfall 1.00 inches
CN 74.1 .
Runoff = 0.024 inches
Runoff Volume = 40 cf
24 hour, 2 year rainfall 3.60 inches
C N 74.1
Runoff = 1.314 inches
Runoff Volume = 6154 cf
24 hour, 10 year rainfall 5.38 inches
CN 74.1
Runoff = 2.68 inches
Runoff Volume = 12540 cf
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
SOIL C.N. C AREA
GROUP
----------------------
----
------------ AC.
-----
----------------------
B ----
98 ------------
0.95 -----
0.46
B 61 0.35 0.68
B 60 0.20 0.15
74.1 0.55 1.29
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE User:
ty WAKE State: NC Checked:
Sti.'ci.tle: POST DEVELOPMENT - DRAINAGE POINT 7
Data: Drainage Area 1.29 Acres
Runoff Curve Number 74
Time of Concentration: 0.21 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 -
- -------
-------
2
--------- -----
Frequency (yrs)
2
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.20 0.13
Runoff (in) 1.31 2.67
Unit Peak Discharge 1.150 1.202
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
---- --------- -----
Peak Discharge (cfs)
2
4

Version 2.00
TFC Date: 09/10/99
Date:
0
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C =
Bioretention Area Planting Soil Depth
Ponding Depth
Storage Volume Provided ( assumes 50% void ratio )
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
• Normal pool depth
Impervious cover percentage of the tract
Surface Area to Drainage Area Ratio
Required Surface Area
Surface Area Provided
40 cf
1370 cf
0.04 ac
1535 sf
5 feet
6 inches
4606 cf
3 feet
0.36 %
1.9
0.02 ac
1068 sf
1070 sf
C-,

TOTAL NITROGEN EXPORT WORKSHEET PROJECT HARRINGTON POINTE - DRAINAGE POINT 7
DATE. SEPT 10, 2003 F ILE NAME. TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
PRETREATMENT PRIMARY TREAT MENT SECONDARY TREATMENT
TYPE OF LAND COVER SITE AREA TN EXPORT TN EXPORT TN EXPORT BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
BY LAND USE FROM SITE RATE BY LAND USE
COEFF FROM SITE RATE BY LAND USE FROM SITE
.
ACRES LBS/AC/YR LBS/YR LBS/AC/YR % LBS/YR LBS/AC/YR % LBS/YR LBS/AC/YR
UNDISTURBED OPEN SPACE 0 15 0.60 0 09 CONST WETLANDS 0 40 0 05 NONE 0.05
MANAGED OPEN SPACE 0 00 1 20 0 00 0 00 0.00
LAWN AND LANDSCAPE 0 68 1 20 0 82 CONST WETLANDS 0 40 0 49 NONE 0 49
IMPERVIOUS SURFACES 0 46 21 20 9 75 CONST. WETLANDS 0 40 5.85 NONE 5.85
TOTALS 1.29 10 66 6 39 6 39
AVERAGE PER SITE 8 26 4 96 496
360 360
ALLOWED TN
FEE DUE $330 00 PER LB/ACRE
$577.76
L
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 8 - PREDEVELOPMENT
WATERSHED LAND USE DATA
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
TRACT DESCRIPTION SOIL C. N. C AREA
NO.
------------------------------------------- GROUP
---------------
--------
-------- AC.
---------
-------------------------------------------
1 BUILDINGS AND STREETS ---------------
B --------
98 --------
0.95 ---------
0.31
2 CLEARED FIELDS B 69 0.35 1.61
3 UNDISTURBED WOODED AREAS B 60 0.20 6.97
TOTALS AND COMPOSITE NUMBERS 63.0 0.25 8.89
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.27 HR
16.2 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 63.0
Runoff = 0.707 inches
Runoff Volume = 22808 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 63.0
Runoff = 1.75 inches
Runoff Volume = 56516 cf
9
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE User: TFC
C ty WAKE State: NC Checked:
S1--citle: PRE DEVELOPMENT - DRAINAGE POINT 8
Data: Drainage Area 8.89 Acres
Runoff Curve Number 63
Time of Concentration: 0.27 Hours
Rainfall Type II
Pond and Swamp Area NONE
-
- -----------------------
-----------------------
Storm Number ------
------
1 --------
--------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.33 0.22
Runoff (in) 0.71 1.75
Unit Peak Discharge 0.900 1.011
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0* Ponds Used
---- --------- -----
Peak Discharge (cfs)
6
16
=0
Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 8 - POSTDEVELOPMENT DATE : AUGUST 22, 2003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C.N. C AREA
NO.
------------------------------------------- GROUP
-----------------
----
------------ AC.
------
-------------------------------------------
1 BUILDINGS AND STREETS -----------------
B ----
98 ------------
0.95 ------
3.48
2 LANDSCAPE AREAS B 61 0.35 4.24
3 UNDISTURBED WOODED AREAS B 60 0.20 1.06
TOTALS AND COMPOSITE NUMBERS 75.5 0.57 8.78
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.19 HR
11.4 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 75.5
Runoff = 0.035 inches
Runoff Volume = 437 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 75.5
Runoff = 1.408 inches
Runoff Volume = 44887 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 75.5
Runoff = 2.81 inches
Runoff Volume = 89566 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE User: TFC
CqWty WAKE State: NC Checked:
Si--citle: POST DEVELOPMENT - DRAINAGE POINT 8
Data: Drainage Area 8.78 Acres
Runoff Curve Number 76
Time of Concentration: 0.19 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 -
- -------
-------
2
Frequency (yrs) 2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.18 0.12
Runoff (in) 1.44 2.85

Unit Peak Discharge
1.215 i
1.261
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
----------------------
Peak Discharge (cfs) ------
15 ------
32

Version 2.00
Date: 09/10/99
Date:
0
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C =
Bioretention Area Planting Soil Depth
Ponding Depth
Storage Volume Provided ( assumes 50% void ratio )
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth
Impervious cover percentage of the tract
Surface Area to Drainage Area Ratio
Required Surface Area
Surface Area Provided
437 cf
22079 cf
0.25 ac
10894 sf
5 feet
6 inches
32683 cf
3 feet
0.40 %
1.73
0.15 ac
6617 sf
6620 sf
0
9 0 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT : HARRINGTON POINTE - DRAINAGE POINT 8
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS.
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRE TREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
1 06 0 60 0 64
0 00 1 20 0 00
4 24 1 20 5 09
3 48 21 20 73 78
8 78 79 50
9.05
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 0 40 0 38
0 00
CONST WETLANDS 0 40 3 05
CONST WETLANDS 0 40 44 27
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
47 70
5 43
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 38
000
NONE 3 05
NONE 44 27
47 70
5 43
3 60
FEE DUE $330 00 PER LB/ACRE $5,31036
PRIEST, CRAVEN S ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 9 - PREDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C.N. C AREA
NO.
------------------------------------------- GROUP
-----------------
----
------------ AC.
-------
-------------------------------------------
1 BUILDINGS AND STREETS -----------------
B ----
98 ------------
0.95 -------
0.18
2 CLEARED FIELDS B 69 0.35 0.50
3 UNDISTURBED WOODED AREAS B 60 0.20 5.35
TOTALS AND COMPOSITE NUMBERS 61.9 0.23 6.03
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
is Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall
CN
Runoff =
Runoff Volume =
10 year storm
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
0.27 HR
16.2 MIN
3.60 inches
61.9
0.658 inches
14392 cf
5.38 inches
61.9
1.67 inches
36536 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE User: TFC
C ty WAKE State: NC Checked:
Su-?.itle: PRE DEVELOPMENT - DRAINAGE POINT 9
Data: Drainage Area 6.03 Acres
Runoff Curve Number 62
Time of Concentration: 0.27 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 --------
--------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.34 0.23
Runoff (in) 0.66 1.68
Unit Peak Discharge 0.876 1.003
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.00i Ponds Used
----------------------
Peak Discharge (cfs) ------
4 ------
10
s--"E
LJ
Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-8 COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 9 - POSTDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO.
------------------------------------------- GROUP
-----------------
----
------------ AC.
------
-------------------------------------------
1 BUILDINGS AND STREETS -----------------
B ----
98 ------------
0.95 ------
1.50
2 LANDSCAPE AREAS B 61 0.35 2.15
3 UNDISTURBED WOODED AREAS B 60 0.20 1.32
TOTALS AND COMPOSITE NUMBERS 71.9 0.49 4.97
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.18 HR
10.8 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 71.9
Runoff = 0.012 inches
Runoff Volume = 63 cf
2 year storm
10 year storm
24 hour, 2 year rainfall 3.60 inches
CN 71.9
Runoff = 1.181 inches
Runoff Volume = 21306 cf
24 hour, 10 year rainfall 5.38 inches
CN 71.9
Runoff = 2.49 inches
Runoff Volume = 44847 cf
•
GRAPHICAL PEAK DISCHARGE METHOD
V P ect HARRINGTON POINTE User: TFC
ty WAKE State: NC Checked:
S,.-,:i.tle: POST DEVELOPMENT - DRAINAGE POINT 9
Data: Drainage Area 4.97 Acres
Runoff Curve Number 72
Time of Concentration: 0.18 Hours
Rainfall Type II
Pond and Swamp Area NONE
Storm Number 1 2
----
------------------ ---
Frequency (yrs) ------
2 --
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.22 0.14
Runoff (in) 1.19 2.49
Unit Peak Discharge 1.209 1.266
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
---- --------- -----
Peak Discharge (cfs)
7
16
=0
Version 2.00
Date: 09/10/99
Date:
0
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 63 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 6914 cf
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area • 0.05 ' C = 0.12 ac
5318 sf
Bioretention Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void rsdo ) 15953 cf
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 0.30 %
Surface Area to Drainage Area Ratio 1.34
Required Surface Area 0.07 ac
2901 sf
Surface Area Provided 2910 sf
C7
0 0 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT HARRINGTON POINTE - DRAINAGE POINT 9
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRETREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
1 32 0 60 0 79
0 00 1 20 000
2 15 1 20 2 58
1 50 2120 31 80
4 97 35 17
7 08
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 0 40 0 48
0 00
CONST WETLANDS 0 40 1 55
CONST WETLANDS 0 40 1908
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
21 10
4 25
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 48
0 00
NONE 1 55
NONE 1908
.21.10
4.25
3.60
FEE DUE $330 00 PER LB/ACRE $1,05970
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-8 COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 10 - PREDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 0.10
2 CLEARED FIELDS B 69 0.35 0.53
3 UNDISTURBED WOODED AREAS B 60 0.20 8.39
TOTALS AND COMPOSITE NUMBERS 61.0 0.22 9.02
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.37 HR
22.2 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 61.0
Runoff = 0.616 inches
Runoff Volume = 20174 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 61.0
Runoff = 1.60 inches
Runoff Volume = 52357 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE User:
CWty WAKE State: NC Checked:
S?__cltle: PRE DEVELOPMENT - DRAINAGE POINT 10
Data: Drainage Area 9.02 Acres
Runoff Curve Number 61
Time of Concentration: 0.37 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 -
- -------
-------
2
--------- -----
Frequency (yrs)
2
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.36 0.24
Runoff (in) 0.62 1.60
Unit Peak Discharge 0.719 0.854
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0' Ponds Used
-------------- -------
Peak Discharge (cfs) ------
4
12

Version 2.00
TFC Date: 09/10/99
Date:
•
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-8 COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 10 - POSTDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 3.77
2 LANDSCAPE AREAS B 61 0.35 4.60
3 UNDISTURBED WOODED AREAS B 60 0.20 1.17
TOTALS AND COMPOSITE NUMBERS 75.5 0.57 9.54
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.19 HR
11.4 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 75.5
Runoff = 0.034 inches
Runoff Volume = 469 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 75.5
Runoff = 1.405 inches
Runoff Volume = 48670 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 75.5
Runoff = 2.81 inches
Runoff Volume = 97176 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
P ect : HARRINGTON POINTE User: TFC
ty : WAKE State: NC Checked:
SL.-citle: POST DEVELOPMENT - DRAINAGE POINT 10
Data: Drainage Area 9.54 Acres
Runoff Curve Number 76
Time of Concentration: 0.19 Hours
Rainfall Type II
Pond and Swamp Area NONE
Storm Number
_ i
Frequency (yrs) '
24-Hr Rainfall (in)
Ia/P Ratio
Runoff (in)
Unit Peak Discharge '
(cfs/acre/in) '
Pond and Swamp Factor'
0.0. Ponds Used '
---- --------- -----
Peak Discharge (cfs)
1 2
2 10
3.6 5.38
0.18 0.12
1.44 2.85
1.215 '
i
1.00 '
17 '
1.261 1
1.00 i
34
Version 2.00
Date: 09/10/99
Date:
0
•
•
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 469 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 28496 cf
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C = 0.27 ac
11817 sf
Bioretenticn Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void ratio) 35450 cf
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 1.73 %
Surface Area to Drainage Area Ratio 1.9
Required Surface Area 0.18 ac
7896 sf
Surface Area Provided 7900 sf
0

TOTAL NITROGEN EXPORT WORKSHEET PROJECT : HARRINGTON POINTE - DRAINAGE POINT 10
DATE : SEPT 10, 2003 F ILE NAME . TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRE TREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
117 060 070
0 00 1.20 0 00
4 60 1 20 5 52
3 77 21 20 79 92
9 54 86 15
9 03
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST. WETLANDS 0.40 0 42
0 00
CONST WETLANDS 0 40 3 31
CONST WETLANDS 0 40 47.95
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
51 69
5 42
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 42
0 00
NONE 3 31
NONE 47.95
51.69
5.42
3.60
FEE DUE $330 00 PER LB/ACRE $5,72339
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 11 - PREDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO.
------------------------------------------- GROUP
-----------------
----
------------ AC.
-------
-------------------------------------------
1 BUILDINGS AND STREETS -----------------
B ----
98 ------------
0.95 -------
0.10
2 CLEARED FIELDS B 69 0.35 1.08
3 UNDISTURBED WOODED AREAS B 60 0.20 0.62
TOTALS AND COMPOSITE NUMBERS 67.5 0.33 1.80
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.17 HR
10.2 MIN
0 Determine runoff volume from S.C.S. procedures
RUNOFF AMOUNTS
2 year storm
10 year storm
24 hour, 2 year rainfall 3.60 inches
CN 67.5
Runoff = 0.934 inches
Runoff Volume = 6101 cf
24 hour, 10 year rainfall 5.38 inches
CN 67.5
Runoff = 2.11 inches
Runoff Volume = 13815 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
P ect HARRINGTON POINTE
C ty WAKE State: NC
S? itle: PRE DEVELOPMENT - DRAINAGE POINT 11
Data: Drainage Area 1.8 Acres
Runoff Curve Number 68
Time of Concentration: 0.17 Hours
Rainfall Type II
Pond and Swamp Area NONE
Storm Number
----- 1
------ 2
------
-----------------
Frequency (yrs) 2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.26 0.17
Runoff (in) 0.96 2.15
Unit Peak Discharge 1.203 1.270
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0o Ponds Used
-
-
------
----------------------
Peak Discharge (cfs) -
---
2 5
Cl
User: TFC
Checked:
Version 2.00
Date: 09/10/99
Date:
0
PRIEST, CRAVEN 1, ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 11 - POSTDEVELOPMENT
WATERSHED LAND USE DATA
TRACT DESCRIPTION
NO.
1 BUILDINGS AND STREETS
2 LANDSCAPE AREAS
3 UNDISTURBED WOODED AREAS
TOTALS AND COMPOSITE NUMBERS
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall
CN
Runoff =
Runoff Volume =
2 year storm
24 hour, 2 year rainfall
CN
Runoff =
Runoff Volume =
10 year storm
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
SOIL C. N. C AREA
GROUP
------------------
--------
-------- AC.
--------
------------------
B --------
98 --------
0.95 --------
0.74
B 61 0.35 0.78
B 60 0.20 0.62
73.5 0 51 2.14
0.18 HR
10.8 MIN
1.00 inches
73.5
0.020 inches
54 cf
3.60 inches
73.5
1.278 inches
9931 cf
5.38 inches
73.5
2.63 inches
20406 cf
0
GRAPHICAL PEAK DISCHARGE METHOD Version 2.00
ect HARRINGTON POINTE User: TFC Date: 09/10/99
1ty WAKE State: NC Checked: Date:
Su-, itle: POST DEVELOPMENT - DRAINAGE POINT 11
Data: Drainage Area 2.14 Acres
Runoff Curve Number 74
Time of Concentration: 0.18 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
Storm Number
1
2
Frequency (yrs) 2 10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.20 0.13
Runoff (in) 1.31 2.67
Unit Peak Discharge 1.226 1.277
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0' Ponds Used
Peak Discharge (cfs) 3 7
r-Im
L_-J
0
P.J
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume 54 cf
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume 3830 cf
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C = 0.06 ac
2396 sf
Bioretention Area Planting Soil Depth 5 feet
Ponding Depth 6 inches
Storage Volume Provided ( assumes 50% void ratio) 7187 cf
•
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth 3 feet
Impervious cover percentage of the tract 0.35 %
Surface Area to Drainage Area Ratio 1.54
Required Surface Area 0.03 ac
1436 sf
Surface Area Provided 1440 sf
0
0 0 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT. HARRINGTON POINTE - DRAINAGE POINT 11
DATE SEPT 10, 2003 F ILE NAME : TNHARRPT1123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1. EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2 PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRE TREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/ACNR
0 62 0 60 0 37
0 00 1 20 0 00
0 70 1 20 0 94
0 74 21 20 15 69
2.14 17 00
7.94
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 0 40 0 22
0 00
CONST WETLANDS 0 40 0 56
C0NST WETLANDS 0 40 941
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
10 20
4 77
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/ACNR
NONE 0 22
0 00
NONE 0 56
NONE 941
10.20
4.77
3 60
FEE DUE $330 00 PER LB/ACRE $82289
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC
DRAINAGE POINT 12 REVISED - PREDEVELOPMENT
WATERSHED LAND USE DATA
TRACT DESCRIPTION
NO.
1 BUILDINGS AND STREETS
2 CLEARED FIELDS
3 UNDISTURBED WOODED AREAS
TOTALS AND COMPOSITE NUMBERS
11 Determine runoff volume from S.C.S. procedures
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
2 year storm
10 year storm
24 hour, 2 year rainfall
CN
Runoff =
Runoff Volume =
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
FILE NAME : HARPTD2.123
DATE : AUGUST 22, 2003
SOIL C. N. C AREA
GROUP
--------
--------
-------- AC.
---------
--------
B --------
98 --------
0.95 ---------
0.00
B 69 0.35 0.00
B 60 0.20 4.13
60.0 0.20 4.13
0.28 HR
16.8 MIN
3.60 inches
60.0
0.575 inches
8622 cf
5.38 inches
60.0
1.53 inches
22915 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
A ect : HARRINGTON POINTE User:
ty : WAKE State: NC Checked:
itle: PRE DEVELOPMENT - DRAINAGE POINT 12
Data: Drainage Area 4.13 Acres
Runoff Curve Number 60
Time of Concentration: 0.28 Hours
Rainfall Type II
Pond and Swamp Area NONE
--------------------
Storm Number
1
2
--------- -----
Frequency (yrs)
2
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.37 0.25
Runoff (in) 0.58 1.53

Unit Peak Discharge
0.803 i
0.970
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
--
------
----------------------
Peak Discharge (cfs) ----
2 6
lr ?
u
Version 2.00
TFC Date: 09/10/99
Date:
•
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-8 COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 12 REVISED - POSTDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 2.31
2 LANDSCAPE AREAS B 61 0.35 2.89
3 UNDISTURBED WOODED AREAS B 60 0.20 1.51
TOTALS AND COMPOSITE NUMBERS 73.5 0.52 6.71
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.12 HR
7.2 MIN
RUNOFF AMOUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
CN 73.5
Runoff = 0.020 inches
Runoff Volume = 169 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
CN 73.5
Runoff = 1.279 inches
Runoff Volume = 31152 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 73.5
Runoff = 2.63 inches
Runoff Volume = 63999 cf
0
GRAPHICAL PEAK DISCHARGE METHOD
liftect : HARRINGTON POINTE User:
ty : WAKE State: NC Checked:
S,-_ title: POST DEVELOPMENT - DRAINAGE POINT 12
Data: Drainage Area 6.71 Acres
Runoff Curve Number 74
Time of Concentration: 0.12 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 -
- -------
-------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.20 0.13
Runoff (in) 1.31 2.67
Unit Peak Discharge 1.430 1.474
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0% Ponds Used
----------------------
Peak Discharge (cfs) ------
13 ------
26
`.J
Version 2.00
TFC Date: 09/10/99
Date:
•
DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C =
Bioretention Area Planting Soil Depth
Ponding Depth
Storage Volume Provided ( assumes 50% void ratio )
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth
Impervious cover percentage of the tract
Surface Area to Drainage Area Ratio
Required Surface Area
Surface Area Provided
169 cf
22530 cf
0.18 ac
7640 sf
5 feet
6 inches
22921 cf
3 feet
0.34 %
1.34
0.09 ac
3917 sf
3920 sf
0

TOTAL NITROGEN EXPORT WORKSHEET PROJECT : HARRINGTON POINTE - DRAINAGE POINT 12
DATE. SEPT 10, 2003 F ILE NAME. TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1 EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2. PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRETREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
1 51 0 60 0.91
0 00 1 20 000
289 1 20 3 47
2 31 21 20 48 97
671 53 35
7.95
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST. WETLANDS 0 40 0 54
0 00
CONST WETLANDS 0 40 2 08
CnNST WFTI ANDS 0 40 29.38
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
I AWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
32 01
4 77
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 54
0 00
NONE 2.08
NONE 29 38
32 01
4.77
3 60
FEE DUE $330 00 PER I B/ACRE $2,591 03
PRIEST, CRAVEN & ASSOCIATES, INC.
D LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 13 - PREDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C. N. C AREA
NO. GROUP AC.

1 BUILDINGS AND STREETS
B
98 ----
0.95 -------
0.04
2 CLEARED FIELDS B 69 0.35 0.72
3 UNDISTURBED WOODED AREAS B 60 0.20 11.06
TOTALS AND COMPOSITE NUMBERS 60.7 0.21 11.82
TIME OF CONCENTRATION
By TR-55 methodology, printout attached
RUNOFF AMOUNTS
0.17 HR
10.2 MIN
Determine runoff volume from S.C.S. procedures
2 year storm
24 hour, 2 year rainfall
CN
Runoff =
Runoff Volume =
3.60 inches
60.7
0.604 inches
25924 cf
10 year storm
24 hour, 10 year rainfall
CN
Runoff =
Runoff Volume =
5.38 inches
60.7
1.58 inches
67735 cf
GRAPHICAL PEAK DISCHARGE METHOD
ect HARRINGTON POINTE User: TFC
110ty WAKE State: NC Checked:
S -citle: PRE DEVELOPMENT - DRAINAGE POINT 13
Data: Drainage Area 11.8 Acres
Runoff Curve Number 61
Time of Concentration: 0.17 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
------------------------
Storm Number ------
------
1 -
- -------
-------
2
----------------------
Frequency (yrs) ------
2 ------
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.36 0.24
Runoff (in) 0.62 1.60
Unit Peak Discharge 1.071 1.221
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.01 Ponds Used
----------------------
Peak Discharge (cfs) ------
8 ------
23

Version 2.00
Date: 09/10/99
Date:

PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
3808-B COMPUTER DRIVE, SUITE 104
RALEIGH, N.C. 27609
HYDROLOGIC DATA
HARRINGTON POINTE SUBDIVISION
LEESVILLE RD, RALEIGH, NC FILE NAME : HARPTD2.123
DRAINAGE POINT 13 - POSTDEVELOPMENT DATE : AUGUST 22, 2 003
WATERSHED LAND USE DATA
TRACT DESCRIPTION SOIL C.N. C AREA
NO. GROUP AC.
1 BUILDINGS AND STREETS B 98 0.95 5.81
2 LANDSCAPE AREAS B 61 0.35 5.45
3 UNDISTURBED WOODED AREAS B 60 0.20 1.94
TOTALS AND COMPOSITE NUMBERS 77.1 0.59 13.20
TIME OF CONCENTRATION
By TR-55 methodology, printout attached 0.16 HR
9.6 MIN
RUNOFF AMCUNTS
Determine runoff volume from S.C.S. procedures
1 inch storm
Rainfall 1.00 inches
C N 77.1
Runoff = 0.049 inches
Runoff Volume = 1038 cf
2 year storm
24 hour, 2 year rainfall 3.60 inches
C N 77.1
Runoff = 1.515 inches
Runoff Volume = 72574 cf
10 year storm
24 hour, 10 year rainfall 5.38 inches
CN 77.1
Runoff = 2.96 inches
Runoff Volume = 141678 cf
I j
GRAPHICAL PEAK DISCHARGE METHOD
;Wct HARRINGTON POINTE User:
y WAKE State: NC Checked:
31-. _i.tle : POST DEVELOPMENT - DRAINAGE POINT 13
Data: Drainage Area 13.2 Acres
Runoff Curve Number 77
Time of Concentration: 0.16 Hours
Rainfall Type II
Pond and Swamp Area NONE
------------------------
Storm Number -
1
2
--------- -----
Frequency (yrs)
2
10
24-Hr Rainfall (in) 3.6 5.38
Ia/P Ratio 0.17 0.11
Runoff (in) 1.51 2.94
Unit Peak Discharge 1.307 1.349
(cfs/acre/in)
Pond and Swamp Factor 1.00 1.00
0.0. Ponds Used
------
----------------------
Peak Discharge (cfs) -
26 52

Version 2.00
TFC Date: 09/10/99
Date:
•

DETERMINE THE REQUIRED STORAGE VOLUME
Water Quality requirements mandate control of the
runoff from the 1 inch storm on the impervious surfaces.
Required Storage Volume
City of Raleigh Neuse Protection Ordinances
mandate control of the 2 year storm
Required Storage Volume
BIORETENTION AREA CALCULATIONS
Size bioretention area to treat the runoff from the site.
Surface Area = Area " 0.05 " C =
Bioretention Area Planting Soil Depth
Ponding Depth
Storage Volume Provided ( assumes 50% void ratio )
EXTENDED DETENTION WETLANDS SIZING CALCULATIONS
Size an extended detention wetlands to treat the runoff from the site.
Normal pool depth
Impervious cover percentage of the tract
Surface Area to Drainage Area Ratio
Required Surface Area
Surface Area Provided
1038 cf
46650 cf
0.39 ac
17021 sf
5 feet
6 inches
51063 cf
3 feet
0.44 %
1.9
0.25 ac
10925 sf
10930 sf
E
e 0 0
TOTAL NITROGEN EXPORT WORKSHEET PROJECT. HARRINGTON POINTE - DRAINAGE POINT 13
DATE SEPT 10, 2003 F ILE NAME TNHARRPTI 123
METHODLOGY AND TREATMENT REMOVAL RATES ARE TAKEN FROM NCDEHNR AND CITY DESIGN MANUALS
PROPOSED TREATMENT MEASURES
1. EXTENDED DETENTION WETLANDS AT EACH DISCHARGE POINT
2. PAYMENT OF FEE TO THE NC WETLANDS RESTORATION PROGRAM FOR BALANCE OF REQUIRED REDUCTION
TYPE OF LAND COVER
PRE TREATMENT
SITE AREA TN EXPORT TN EXPORT TN EXPORT
COEFF BY LAND USE FROM SITE
ACRES LBS/AC/YR LBS/YR LBS/AC/YR
194 060 116
0.00 1 20 000
5 45 1 20 6 54
5 81 21 20 123 17
13 20 130.88
991
PRIMARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
CONST WETLANDS 0 40 0 70
000
CONST. WETLANDS 0 40 3 92
CONST WETLANDS 0 40 73 90
UNDISTURBED OPEN SPACE
MANAGED OPEN SPACE
LAWN AND LANDSCAPE
IMPERVIOUS SURFACES
TOTALS
AVERAGE PER SITE
ALLOWED TN
78 53
5.95
3 60
SECONDARY TREATMENT
BMP MEASURE TN REMOVAL TN EXPORT TN EXPORT
RATE BY LAND USE FROM SITE
% LBS/YR LBS/AC/YR
NONE 0 70
000
NONE 3 92
NONE 73.90
78.53
5.95
3 60
FEE DUE $330 00 PER LB/ACRE $10,231 85
?OF W ATF?,Q Michael F. Easley, Governor
William G. Ross Jr., Secretary
co r North Carolina Department of Environment and Natural Resources
? y
.? Alan W. Klimek, P.E. Director
Division of Water Quality
August 25, 2004
DWQ Project # 04-1130
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Grey Methven
Centex Homes
2301 Sugar Bush Road
Raleigh, NC, 27608
Subject Property: Harrington Point
REQUEST FOR MORE INFORMATION
Dear Mr. Methven:
On July 13, 2004, the Division of Water Quality (DWQ) receiv6d your application dated July 12, 2004 to
impact 0.224 acres of wetlands, 250 feet of streams and 0.555 acre of Neuse Buffers to construct the
proposed subdivision. Your application has been forwarded to Mr. Mike Horan of the DWQ Raleigh
Regional Office. Mr. Horan has met with Mr. Todd Preuninger on August 23, 2004 to discuss details
needed so that we can complete our review of your application. We understand that the items listed
below were discussed at that time and are to be forwarded to this Office and to Mr. Horan. Please note
that unless we receive the additional information requested below, we will have to move toward denial of
your application as required by 15A NCAC 2H.0506. At this time we will place this project on hold as
incomplete until we receive this additional information. Please provide the following information so that
we may continue to review your project.
Additional Information Requested:
1. Buffer Determination
Please provide a copy of the Buffer Determination made for this site.
2. Diffuse Flow Plans
Please provide plans illustrating diffuse flow provisions for the two road crossings, along with
calculations used in design.
Please respond within three weeks of the date of this letter by sending this information to me in writing
and Mike Horan of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks,
we will assume that you no longer want to pursue this project and we will consider the project as
withdrawn.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] / Internet: htto://h2o.enr.state. nc. us/ncwetlands
NOne
hCarolina
Naturally
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
Mr. Grey Methven
Page 2 of 2
August 25, 2004:
This letter only addresses the application review and does not authorize any impacts to wetlands, waters
or protected buffers. Please be aware that any impacts requested within your application are not
authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. John Dorney at 919-733-1786
if you have any questions regarding or would like to set up a meeting to discuss this matter.
Sincerely,
John Dorne
/ J DWQ, Wetlands / 401 Unit
JRD/cbk
cc: Mike Horan, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Central Files
Todd Preuninger, 11010 Raven Ridge Road, Raleigh, NC, 27614
Filename: 041130Harrington(Wake)HLD

04-1130 Harrington Point S/D
Subject: 04-1130 Harrington Point S/D
From: Mike Horan <mike.horanC ncmail.net>
Date: Tue, 17 Aug 2004 12:19:13 -0400
To: Cyndi Karoly <[e-mail]>

Comments are in. Please place on hold. I am meeting with Todd
Preuninger on 8/23/04 to discuss project.
I also need to talk to mitchell about buffer determination letter.
1 of 1 8/17/2004 2:23 PM
MEMORANDUM
TO: John Dorney
Non-Discharge Branch
Regional Contact: Michael Horan
WO Supervisor: Ken?Rrhuster
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Harrington Point Subdivision c/o Centex Homes County Wake
Project Number 04 1130 County2
Recvd From APP Region Raleigh
Received Date 7/13/04
Project Type residential S/D
Recvd By Region
Certificates Stream
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
F39 emergent/O Y O N F__ 27-33-9 I D NSW 30,402. 0.22 250.00
NBR Buffers ®1' ON ?--r?F- 30,402. o-56 F
?I r- P-7-0 N r I -F__ I -F-F_ F_
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: O Issue O Issue/Cond O Deny
Provided by Region: Latitude (ddmmss) 355443 Longitude (ddmmss) 784406
Comments:
Place on hold , applicant should provide letter stating buffer determination. I am lag to meet
with Todd Preuninger to discuss project on 8/23/04. (8/17/04 comments made)
(8/23/04 - Mike H.) Place On Hold - already, requested stormwater information from consultant -
however. please send out a new on hold letter requesting diffuse flow plans for the two proposed
road crossings - recommend final approval include required DWO approved stormwater
management plans -
cc: Regional Office
Central Office Page Number 1
MEMORANDUM
TO: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Harrington Point Subdivision c/o Centex Homes
Project Number 04 1130
Recvd From APP'
Received Date 7/13/04 Recvd By Region
Project Type residential S/D
Certificates
Permit Wetland Wetland Wetland Stream
Type Type Impact Score Index
County Wake
County2
Region Raleigh

Stream
Class Acres
Prim. Supp. Basin Req.
mpacts (ft.)
Feet
Req.;
39 mergent/ O Y O N F 27-33-9 r B NSW 30,402. 0.22 250.00 F-
_NBR Buffers. 0 Y ON F- 30,402. 0.56. F_ ?-
r
F-F-O Y ON F????? r
Mitigation Wetland
MitigationType Type Acres Feet
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 O Issue/fond O Deny
Provided by Region: Latitude (ddmmss) 355443 Longitude (ddmmss) 784406
Comments:
Place on hold , applicant should provide letter stating huffer determination- I am planning to meet
with Todd Preuninger to discuss project on 8/23/04. (8/17/04 comments made)
cc: Regional Office
Central Office Page Number 1
Environmental Consultants, PA
Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
Detailed stormwater plans are included for Phase I of this project; however, the
stormwater plans have not been finalized for the later phases. No wetland or stream
impacts will occur on Phase I. We are requesting that the NC-DWQ approve the
proposed impacts for later phases of this project with the condition that impacts will
not occur until the stormwater plans for these phases have been reviewed and
approved by your staff.
2004
NCDENR-DWQ US Army Corps of Engineers
Attn: Mr. John Dorney Attn: Ms. Jennifer Burdette
2321 Crabtree Blvd., Ste. 250 6508 Falls of the Neuse Rd., Ste. 120
Raleigh, NC 27604 Raleigh, NC 27615
RE: Nationwide Permit 39/401 certification/Buffer Compliance Request
Harrington Point Subdivision
Raleigh, Wake County, North Carolina WETLANDS 1401 GROUP
1
S&EC Project #: 6923W I
,JUL 1 3 2004
Dear Mr. Dorney and Ms. Burdette:
WATER QUALITY SECTION
On behalf of Centex Homes, Inc. (property owner), we hereby request authorization from
the US Army Corps of Engineers to use Nationwide Permit 39 for the subject project to
cover permanent and temporary impacts to stream channels and wetlands. We are also
requesting 401 certification and buffer compliance for impacts to the riparian buffer. A
Pre-construction Notification Application (PCN) is attached, which includes an agent
authorization form.
The proposed project, which consists of residential housing, is located on the northwest
quadrant of the intersection of Leesville Road and I-540. Please refer to the USGS
topographic map attached for the location of the project. S&EC conducted a detailed
wetland delineation and Neuse River Basin (NRB) Riparian Buffer evaluation on the
property in October of 2003. Ms. Jennifer Burdette and Mr. Steve Mitchell approved the
delineation (AID# 200420060) and buffer evaluation, respectively.
Because a stream channel and wetlands bisect the property, impacts could not be avoided.
Current proposed impacts include 250 linear feet of perennial channel, 0.224 acres of
wetlands and 24,201 sq.ft. of riparian buffer (Zone 1: 14,817; Zone 2: 9,384). In order to

Charlotte Office: Greensboro Office: Hickory Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive 622 Coon Mountain Lane
Concord, NC 28025 Greensboro, NC 27455 Taylorsville, NC 28681
Phone: [phone] Phone: [phone] Phone [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
July 12, 2004
1
S&EC Project #: 6923W I
Page 2 of 2
preserve water quality downstream, the applicant proposes the use of constructed
wetlands and bio-retention cells. The plans and DWQ worksheets are attached for your
review.
The USACE's current policy requires applicants to avoid and minimize wetland and
stream channel impacts to the maximum extent practicable and compensatory mitigation
to offset unavoidable losses of waters of the US when impacts exceed the requirements
for notification (0.10 acre) or if a discharge to a special aquatic site such as wetlands is
proposed. Because the stream channel, impacts could not be avoided to access high-
ground on the other side of the site. Impacts were minimized by crossing at right angles.
S&EC believes that the USACE will require compensatory mitigation because the
impacts are above the notification thresholds. The client is prepared to pay for mitigation
to the EEP if required.
NC-DWQ's current 401 Water Quality Certification policy requires written concurrence
or mitigation for wetland and stream channel impacts above 1/3 acre and 150 linear feet
under Nationwide Permit 39. Because the proposed cumulative impacts resulting from
the project exceed the aforementioned thresholds, S&EC believes that wetland or stream
channel mitigation should be required. Current NC-DWQ stream buffer policy allows
road crossing without mitigation if the impacts are less than or equal to 150 linear feet of
stream channel and 1/3 acre of riparian buffer. Impacts to riparian buffers are less than
1/3 acre and less than 150 linear feet, therefore, we do not believe buffer mitigation
should be required.
Impervious surface for the site is greater than 30%. A stormwater plan is attached for
review. BMP devices are proposed to remove 85% TSS and are designed to meet NC-
DWQ criteria. Please contact the Project Engineer directly if you have questions
regarding the stormwater BMP's.
Sincerely,

Todd Preuninger
Biologist/Environmental Scientist
Attachments:
Pre-construction (PCN) notification form
Site Location Map (Figure 1)
Impact Maps
Stormwater Plans and Worksheets
Agent Authorization Form
Office Use Only: n Form Version May 2002
USACE Action ID No. DW?. 113 0
(If any particular item is not applicable to this project, please enter "Not Apptucame° or °N/A°.)
1. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: 39
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here:
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: Centex Homes - Attn: Grey Methven
Mailing Address: 2301 Sugar Bush Road
Raleigh NC 27608
Telephone Number: 919-760-1119 Fax Number: 919-571-8346
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Todd Preuninger
Company Affiliation: Soil & Environmental Consultants, PA
Mailing Address: 11010 Raven Ridge Road
Raleigh, NC 27614
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: preunin er ,SandEC corn
Pagel of 8
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps 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: Harrington Point
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN): 0778.02-88-2801
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): Harrington Point
Directions to site (include road numbers, landmarks, etc.): Approximately 1 mile Northwest
of the Leesville Rd /Northern Wake Expressway (I-540) junction.
5. Site coordinates, if available (UTM or Lat/Long): near 035° 54' 43" N. 078° 44' 6" W
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): +/- 70.66
7. Nearest body of water (stream/river/sound/ocean/lake): UT to Sycamore Creek
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is currently forested. The surrounding area is
mixed residential and commercial development.
Page 2 of 8
10. Describe the overall project in detail, including the type of equipment to be used:
The proposed project consists of the construction of a residential subdivision. Typical heavy
equipment associated with road construction and infrastructure will be used.
11. Explain the purpose of the proposed work: The proposed project will increase the available
housing in the area and relieve some of the intense demand for housing.
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.
The applicant hired S&EC to complete a detailed wetland delineation and Neuse River buffer
evaluation in September of 2003 The US Army Corps of Engineers signed-off on the
delineation map on 12 April 2004 (AID#: 200420060). A site visit was conducted by Mr. Steve
Mitchell and he confirmed our buffer determination. No other development, permit applications,
or other activity has been performed in relation to this project.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
NA
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Two road crossings will are
needed for access to the site interior. A utility corridor will skirt the edge of a riparian
wetland Impacts on-site consist of 250 linear feet of perennial channels for road crossings,
Page 3 of 8
0 .22 acres of wetlands for road crossings and lot fill and 0.001 acres of temporary wetland
impacts for utility lines installation Impacts are described in detail below.
2. Individually list wetland impacts below:
Wetland Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
(es/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
B-1 Utility line/Temp 0.0011 +/- 50' Emergent wetland
B-2 Grading/Fill 0.0397 +/- 50' Headwater forest
B-3 Grading/Fill 0.0103 +/- 125' Headwater forest
134 Grading/Fill 0.0187 0-50' Headwater forest
B-5 Road Crossing 0.1542 0-50' Headwater forest
* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at httn://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: +/- 1.434
Total area of wetland impact proposed: 0.224 acres (0.223 permanent, 0.0011 temp.)
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact Length of Average Width Perennial or
Site Number Type of Impact* Impact Stream Name** of Stream Intermittent?
indicate on ma) (linear feet) Before Impact leasespecify)
134 Road crossing 124 UT to Sycamore Creek 5-10 Perennial
B-5 Road crossing 126 UT to Sycamore Creek 5-10 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 linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
www.mapquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 250 linear feet
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:
Open Water Impact Area of Name of Waterbody Type of Waterbody
Site Number Type of Impact* Impact (if applicable) (lake, pond, estuary, sound,
(indicate on ma) (acres) bay, ocean, etc.)
NA NA NA NA NA
Page 4 of 8
* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): NA
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): NA
Size of watershed draining to pond: NA Expected pond surface area: NA
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
The applicant requested a detailed delineation prior to sit eplan development in order to avoid
impacts to wetlands/waters wherever possible. However, the site is bisected by two stream
features In order to access high ground on the other side of the stream, impacts are unavoidable.
The applicant has placed the stream crossings at a perpendicular angle in order to reduce the
impacts
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
Page 5 of 8
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
htlp://h2o.enr.state.nc.us/ncwetlands/stnngide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Because the impacts to perennial stream exceed 150 linear feet the applicant proposes
payment to the NC-EEP to satisfy mitigation requirements.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wM/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (linear feet): 250 - 500 linear feet
Amount of buffer mitigation requested (square feet): NA
Amount of Riparian wetland mitigation requested (acres): 0.25-0.5 acres
Amount of Non-riparian wetland mitigation requested (acres): NA
Amount of Coastal wetland mitigation requested (acres): NA
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ? No
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
Page 6 of 8
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ? No ?
X.
Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ® No ? If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 14,817 3 NA
2 9,384 1.5 NA
Total 24,201 NA
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
XI.
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.
Current NC-DWO tnolicv requires mitigation for buffer impacts that exceed 1/3 of an acre or
>150 linear feet per crossing; Because the buffer impacts are below these thresholds, we do not
believe mitigation should be required for buffer impacts.
Stormwater (required by DWQ)
Page 7 of 8
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.
Impervious surface is greater than 30% (approximately 42%). A stormwater plan for phase
Phase I of the proposed subdivision can be constructed without impacts to wetlands or waters.
The applicant proposes using extended detention wetlands and bioretention cells to preserve
water quality downstream Also included are the appropriate NC-DWQ worksheets for review.
We are requesting that the impacts related to future phases be approved with the condition that
construction will not begin until a stormwater plan is reviewed and approved by the NC-DWQ.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sanitary Sewer
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application?
Yes ? No
XIV. 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).
NA

•
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 8 of 8
UU/U4/U4 15:38 FAX 91955UU978 Centex Homes
06/03/2004 13:08 FAX
Name:
Address:
Phone:
Project N
Date;
The 'Deparbitent of the Army
U.S. Anny Corps of Engineers, Wilmington District
P.O. Box 1890
Wilminem, NC 2W2
Attu
Field Office:
Re: Wetlands Related Consulting and Peru-dtdng
To Whom It May Concern:
I 'V i se J...-
the current prapfftZ owner, hereby designate and authorize Soil &c Environmental Consultants, PA to
act in my behalf na any agent in the processing of permit applications, to famish upon requ?s??
suppl ental information in support of applications, etc. from, this day Forward. The ___ W- " day of
This notification supersedes my previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy lreasox;s, is valid only for
government offixiAb to enter the property when accompanied by S&EC staff. You should call S&EC
to arrange a.site meeting prioae fv visiting the ate.
r
Print Fropelty Owner's Name
cc: Mr. John Domey
NCDENR - DWQ
2321 Crabtree Boulevard
Raleigh, NC 27604
- A /? 4>---
Property wner's Si tune
cc: Mr. Todd Preu:o nger
Soil & Environmental Constaitaxlts, PA
Charlonc office:
2361.eP'hiMp Court, Saito C Crccenatom Office:
3817.E l awndalo Drivc Hickory OtLcc:
622 Coon Mountain Lance
Concord;-NC 28625 Grzousboro. NC 274,55 Tayloravjjle, NC 28661
Phone: [phone] Phonc; [phone] Photce [phone]
Fox; [phone] Fax: [phone] Fax! [phone]
www.SaindEC.com
AGENT AUTHORIZATION FORM
All Blanks To Be Filled 1-n -13Y The Curreslt Landowner
lei U UL
-0002
oil & Environmental Consultants', PA
0 Raven Ridge Road • Rakigh, Noah Cm ina 27614 • Phont; [phone] • Fax: [phone]
PRIEST, CRAVEN & ASSOCIATES, INC.
LAND USE CONSULTANTS
Date : June 14, 2004
To : Todd Pruninger, Soil & Environmental Consultants
Copy : Kelly Race, Centex Homes
Gray Methven, Centex Homes
From : Tommy Craven
Re : Harrington Point
In reference to your comments we offer the following :
1. Impact B-5
Following along the run of the channel, the length of the impact is indeed 126
linear feet. While we have not prepared construction drawings on this portion of
the site, we believe that we can construct the culvert and velocity dissipater pad in
the area indicated to be impacted.
2. Impact B-3 and B4
Moving the roundabout uphill to the west to eliminate Impact 3 would require us
to raise the grade on this portion of the road, requiring more fill on both the
roundabout and Street F. This increased fill would exacerbate the impacts.
Moving Street F to the north would, as you point out, cause the proposed
crossing to occur in a bend in the channel. Following the run of the channel, the
length of impact B-4 is only 124 linear feet. We have corrected our impact table
accordingly. Thanks for pointing this out to us.
3. Mitigation Amount
We will make sure that Centex Homes is aware of the estimate of $128,000 for
mitigation.
PLANNERS /LANDSCAPE DESIGNERS / ENGINEERS / SURVEYORS
3803-B Computer Drive, Suite 104, Raleigh NC 27609. Phone [phone]. Fax [phone]
4. Avoidance
When Joe Jenkins and I first discussed this project with Kevin several months
ago, before your site visit and delineation, we concluded that the more significant
channel was the one downstream of the existing pond, which we have not
impacted. Since we have two channels, and only proposed two crossings, it
seems somewhat ironic that one approach requires $128,000 of mitigation and
the other requires none. Changing the plan to cross the other channel and cul de
sac on each side of our proposed Impact B-5 results in the loss of 4 or 5 homes.
5. Impervious Coverage
The impervious coverage will certainly exceed 30%. We expect that it will be
around 42%. We intend to meet the 85% TSS requirements by treating all
stormwater in either an extended detention wetlands or a bioretention area.
These devices will be designed on a phase by phase basis. We can provide
preliminary calculations for the entire development and final design information
for the devices in Phase 1. The other phases have not yet been designed.
6. Culvert Cross Sections
These culvert crossings have not yet been designed. We can submit the cross
sections and stormwater calculations on a phase by phase basis. The culverts will
be designed with inverts that are a minimum of six inches below the existing
stream inverts.
Copies of the revised impact mapping, the Preliminary Stormwater Analysis for
the entire development, and the Stormwater Analysis and Stormwater Control
Measure Design Calculations for Phase One, including the Maintenance Manual
are enclosed for you use.
t?%

DWQ Project
DIVISION OF WATER QUALITY - 401 EXTENDED DETENTION (and POCKET*) WETLAND WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : HARRI N6TON POI NT PF-f.45E 1
Contact Person: TOMMY CRAVEN Phone Number: f 919) I-81-0300
For projects with multiple basins, specify which basin this worksheet applies to: DRAB NA6E Poi NT 3
Permanent Pool Elevation
Temporary Pool Elevation
49.0 ft.
498.0 ft.
(elevation of the orifice invert out)
(elevation of the outlet structure invert in)
Permanent Pool Surface Area
Drainage Area
Impervious Area
Forebay Surface Area
Marsh 0"-9" Surface Area
Marsh 9"-18" Surface Area
Micro Pool Surface Area
Temporary Pool Volume
SA/DA used
Diameter of Orifice
It. REQUIRED ITEMS CHECKLIST
1& 50 sq. ft.
12.29 ac.
s.8 ac.
2642 sq. ft.
5933 sq. ft.
5933 sq. ft.
2542 sq. ft.
(water surface area at permanent pool elevation)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(at permanent pool elevation approximately 15%)*
(at permanent pool elevation approximately 35%)*
(at permanent pool elevation approximately 35%)*
(at permanent pool elevation approximately 15%)*
26900 cu. ft. (volume detained on top of the permanent pool)
1.96 (surface area to drainage area ratio)*
g" in. (draw down orifice diameter)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project
Applicants Initials
TC The temporary pool controls runoff from the 1 inch rain.
TC The basin side slopes are no steeper than 3:1.
TC A planting plan for the marsh areas with plant species and densities is provided.
TC Vegetation above the permanent pool elevation is specified.
TC An emergency drain is provided to drain the basin.
TC The temporary pool draws down in 2 to 5 days.
TC Sediment storage is provided in the permanent pool.
TC A sediment disposal area is provided.
TC Access is provided for maintenance.
TC A site specific, signed and notarized operation and maintenance agreement is provided.
TC The drainage area (including any offsite area) is delineated on a site plan.
TC Access is provided for maintenance.
TC Plan details for the wetland are provided.
TC Plan details for the inlet and outlet are provided.
TC A site specific operation and maintenance agreement, signed and notarized by the responsible party is provided (see
http://h2o.ehnr.state.nc.us/ncwetlands/oandm.doc).
* Pocket Wetlands have different design parameters and are only assumed to remove 35% TSS - See pp. 19 and 20 of the NC DENIR
Stormwater BMP Manual, April 1999.10% open water, 50% high marsh, 40% low marsh.
DWQ Project
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name: HAR.RINCjTON PoINTP?- ASE 1
Contact Person: TOMMY CRAVEN Phone Number: ( 919) 721-0300
For projects with multiple basins, specify which basin this worksheet applies to: DRAT NACIE Poi NT 5
Permanent Pool Elevation
Temporary Pool Elevation
Bioretention Surface Area
Drainage Area
Impervious Area
Rational C Coefficient
Size %
Inlet Velocity
Inlet flow depth
Depth to Ground Water
Planting Soil Infiltration Rate
In-Situ Soil Infiltration Rate
II. REQUIRED ITEMS CHECKLIST
502.5 ft. (elevation of the orifice invert out)
509.25 ft. (elevation of the outlet structure invert in)
4000 sq. ft.
3.11 ac. (on-site and off-site drainage to the basin)
1.23 ac. (on-site and off-site drainage to the basin)
0.5
5.00 %u
1.44 fps
2.5 in
>0.0 ft.
>0.52 in./hr
>0.2 in./hr
(either 5%a in w/sand under drain or 7% in w/o)
(the soil layer down to 4 feet)
(the soil layer below 4 feet or below the sand bed)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
ADDlicants Initials
Ta No vertical sand bed is proposed
TC The bioretention area is at least 40 feet by 15 feet.
TC Sheet flow is provided at inlet.
Tel Water table depth is greater than 6 feet.
TC Minimum of 6" ponding is provided.
TC The ponded area will draw down in less than 4 days.
Ta Planting soil infiltration rate is greater than 0.52 in/hr.
Ta The in-situ soil infiltration rate is greater than 0.2 in/hr.
Tc A planting plan with species and densities is provided.
Ta Mulch layer is specified in plans.
TC Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
TC Plan details for the bioretention area provided.
TC Plan details for the inlet and outlet are provided.
TC An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains
DWQ Project
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name: FtARRlNC?TONPOINT PHASE 1
Contact Person: TOMMY CRAVEN Phone Number: ( 929) 701-0300
For projects with multiple basins, specify which basin this worksheet applies to: DRAI NAC,E POINT 4
Permanent Pool Elevation
Temporary Pool Elevation
516.50 ft.
517.25 ft.
(elevation of the orifice invert out)
(elevation of the outlet structure invert in)
Bioretention Surface Area
Drainage Area
Impervious Area
Rational C Coefficient
Size %
Inlet Velocity
Inlet flow depth
Depth to Ground Water
Planting Soil Infiltration Rate
In-Situ Soil Infiltration Rate
II. REQUIRED ITEMS CHECKLIST
3200 sq. ft.
2.23 ac.
1.13 ac.
0.05
5.00 %
1.2 fps
2.0 in
> 6.0 ft.
>0.152 in./hr
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(either 5% in w/sand under drain or 7% in w/o)
(the soil layer down to 4 feet)
>0.2 in./hr. (the soil layer below 4 feet or below the sand bed)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
TC No vertical sand bed is proposed
TC The bioretention area is at least 40 feet by 15 feet.
TC Sheet flow is provided at inlet.
TC Water table depth is greater than 6 feet.
TC Minimum of 6" ponding is provided.
TC The ponded area will draw down in less than 4 days.
TC Planting soil infiltration rate is greater than 0.52 in/hr.
TC The in-situ soil infiltration rate is greater than 0.2 in/hr.
TC A planting plan with species and densities is provided.
TC Mulch layer is specified in plans.
TC Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
TC Plan details for the bioretention area provided.
TC Plan details for the inlet and outlet are provided.
TC An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains

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Bayleaf Quad
Project 0: Scale:
026923 V = 2000 Figure 1- USGS Quad
Project Date: Strickland Road 1540
Mgr.: SC 03121102
Wake County, Raleigh, NC
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd. Raleigh, NC 27614
[phone] [phone]
Web Page: www.SandEC.com
S&
EC�

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VICINITY MAP
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S z? ND
WETLP P
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I
t RIEST,
RAVEN
SSOCIATES,
NC,
HER I NGTON POINT `" 31, 2004
I MPf?GT MAP
LAND USE CONSULTANTS P1.ANNF.R9,LANDSCAPE DFSIGNE&5 SURYEYOR4 ? ENGINEERS
PROJECT: 1998-018.001 3E0-8 C=pt= Urn4 SUW LLVkAIKSl <.(: .7509.17mtm9L ' 731 3V0 1,n 91M;7E:-l2Etl. LmmlFtisCta?auwK.¢.:am
PRELIMIMRY wr-RELFnID Frn mr,Tivcna
HARR I NGTON POI NT
WETLAND, CHANNEL AND NEUSE BUFFER IMPACT TABLE
IMPACT SHEET PURPOSE WETLANDS CHANNEL NEUSE B
NO. ZONE I ZONE 2 TOTAL
50. FT, L I NEAR FT. 50. FT. 50. FT. 50. FT.
B-I 2 SEWER 49 0 0 0 0
B-2 2 LOT FILL 1731 0 0 0 0
B-3 2 ROAD GROSSING 450 0 0 0 0
B-4 2 ROAD GROSSING 816 124 7455 4932 12387
B-5 5 ROAD GROSSING 6718 126 7362 4452 11814

TOTALS 9764 'A 50 14817 9384 24201
'
5C& 1
-200 WETLAND V
C
P
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I

E RIEST
RA
EN
SSOCIATES
NC.
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HARR I NGTON POINT MARCH 31. 2004
D ATE, ]
MPACT AREAS .
LAND USECONSULTANTS PLAN
ApFDE
Ft FYGPSiENGA1FFR5
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PROJECT: 1998-028. WI 27G.J
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SOIL & ENVIRONMENTAL CONSULTANTS, PA
NC Division of Water Quality
Tran # Invoice Type Date Reference
3636 071304 Invoice 07/13/04
Check Number:
Date: 07/13/04 Check Amt:
Balance Discount
4 $475.00 $0.00
0 2
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$475.00
Pay Amount
$475.00
UNITED STATES POSTAL SERVICE
LISPS
• Sender: Please print your name, address, and ZIP+4 in this box •
NC DENR Division of Water Quality
Wetlands/401 Certification Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604
First-Class Mail
Postage & Fees Paid
Permit No. G-10

¦ Complete items 1, 2, and 3. Also complete A.
item 4 if Restricted Delivery is desired.
¦ Print your name and address on the reverse
so that we can return the card to you.
¦ Attach this card to the back of the mailpiecA
or on the front if space permits.
Article Addressed to: 1-1 1, 1
Centex Homes
2301 Sugar Bush Road
Raleigh, NC 27608
DWQ# 04-1130 - Wake
1 -?
?fj?1 d by (Printed Name)
CT 0 4 ?nnA
1s delivery address different from
If YES, e,9 iv ss b
? 'a76!3/
? Agent
Date of Delivery
? Yes
? No
3. Service Type
X Certified Mail ? Express Mail
? Registered X Return Receipt for Merchandise
? Insured Mail ? C.O.O.
4. Restricted Delivery? (Extra Fee) ? Yes
2. Article Number
(Transfer from service label) 7004 1116 0 0002 2706 6066
7C a- RA11 r:-k,. , 9nn1A n....,eeH.. oe+.- 0-1-f 1l1-M-n L1d_1 RAi
UNITED STATES POSTAL SERVICE

• Sender: Please print your name, address, and ZIP+4 in this box •
NC DENR Division of Water Quality
Wetlands/401 Certification Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604
First-Class Mail
Postage & Fees Paid
USPS
Permit No. G-10
o? 1„1,f1„,I,fifi„fil„„fi„fi„I,fi„fi?I,Ifi,,,,lfi„fi,l,fifi,?„,fifi,[

Complete items 1, 2, and 3. Also complete
item 4 if Restricted Delivery is desired.
Print your name and address on the reverse
so that we can return the card to you.
Attach this card to the back of the mailpiece,
or on the front if space permits.
Article Addressed to:
Centex Homes
2301 Sugar Bush Road
Raleigh, NC 27608
DWQ# 04-1130 - Wake
? Agent
C. Date of Deliver,
enter

Brent from item 1? ? Yes
address below: ? No
J'Cert i ll ? Express Mail
? Registered M 'Return Receipt for Merchandise
? Insured Mail ? C.O.D.
4. Restricted Delivery? (Extra Fee) ? Yes
?. Article Number 7004 1160 0002 2706 5 618
(Transfer from service label)
?S Form 381 1 . Fehruarv 2004 Domestic Return Recelot 102595-02-M-154
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¦
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u~~, _ ~u11 i~ ~ . . ~ 1~~ I' ~ UTILITY INSTALLATIONS AND OTHER PUBLIC FACILITIES, IIjp~~ Pu~l G
, ~ 1 ~rn ~ ~ ; ~ r..~ ; ' ~ INCLUDING SIDEWALKS AND HANDICAP RAMPS ARE TO PUDL 1 ~ ) 1 BE CON5IRUCTED ON ALL STREETS AS SPECIFIED BY S~ GOLLELTION ~ EXTEMTION SYT~1 WATER DI5TRI8UTION/EXTENTION SYTEM
~A t ~ _ ~ ) 1~~ ' (~j~ ' h~1,1 ~ ...~I ~ ~ LLill~?. J ` I ~ I_L j' CITY CCI~F. THESE FACILITIES HAVE BEEN APPROVED 1HE CITY OF RALEIGH CONSENTS i0 THE CONNECTION AND EXTENSION OF THE -1---~-' 8Y THE i I TT OF RALEIGH AND SHALL ~ SO INSTALLED THE CITY OF RALEIGH CONSBtTS T01HE CONNECTION ANO EXTENSION CF THE
. ~ ~ 1 ~ ;tea ~ l \ UNLESS n CHANGE IS AUTHORIZED 8Y WRITTEN APPROVAL. LITYS RIELIC HATER SYSTEM AS 5hi0rN ON THIS PLAN. THE MATERIAL MID
l~ ~ _ ~ ~ PUE~IC `+ANI TARY SEI~R EASEMENTS ARE TO BE RECORDED CITY 5 PUBLIO SEH62 SYSTB~1 AS SHOYN ON THIS PLAN, THE hNTERIAL AND CONSTRUCTION hfTHODS USED FOR THIS PROJECT SHALL CONFORM TO THE CONSTRUCTION METHODS USED FOR THIS P~JECT SHALL CONFORM TO THE PRIOR T~~ FINAL ACCEPTANCE STUIOARDS AND SPECIFICATIONS Gf iliE CITt" 5 PUELIC UTILITIES HANDB~K. STANDhADS kID SPECIFICATIONS OF THE CITY' S PUELIC UTILITIES HANDBOOK.
~ ~ ~ a / ~i ~ ~ SIGNATURE: _ I C11Y CT RALEIGH
~ ~ ~ ENGINEERING CITY Cf RkE 6H PUBLIC uTIUTIES DEPARTh@!T PERMIT N PURL I C UT I C 111 ES GEPARTM@IT PERMIT N
y ~~y _ - ~ ~ ~ , . i ~ 't ~ 1,C~,.vr ~ PUBLIC UTILITIES:
~ • r V~'~ I 11 ~ ~ ~I AUTHORIZATION TO CONSTRUCT NJTHORiiATICN TO CONSTRUCT
~ r---- TRAFFIC TNGINEER: U1TE DATE
g. t~ T ~ Z-~ ' fANSERYAiION ENGINEER
~ _ r..\ GOND I T I ONS OF !4~'i'ROVl~L
g--
J - ~ _ r Y--' ~ T I OF A 6RMI N6 PERIyI T FOR THE 51 TE PRIOR 0 SSUMICF
II, THAT THE CITY ATTORNEY APPROVES A RESTRICTIVE COVENNNTS TO BE PLACED ON THE ~ - \ I, THAT A TREE PROTECTION PLAN IS ADD BY THE SITE REVIEW SPECIALIST 1N 'HE REMAINING 30,58 ACRES OF T1~ CLUSTER DEVEI.OPMBIT AND PREPARED IN ~j ~ INSPECTIONS DEPARTMENT FOR TREES LOCATED IN NEUSE RIPER RIPARIAN BUFFERS PHASE IN THIS pEVEi,OPMENT
HERN WAJ~E 1V000RD/VJGE WITH 10-301 I l ~ (9) B. 51 NCE THE FIRST
AND IN THE 5d WIDE UNDISTURB~ SMIOD~I YARD ADJACENT TO NORT IS L..55 THAN TWENTY ACRES lIT I5 15.90 ACRESt. A RECORDED DOPY OF THE E)(PRE55WAY 11-54A AND TH/1T TREE PROTTECTION MEASURES ARE IN PLACE ON SIT[ APPROVED RESTRICTIVE COVENANT SHALL BE PROVIDED TO THE PLAWViNG
r' - PRIOR TO 6RMINC>r DEPARTMENT NI THIN 14-DAYS OF AUTHORI UTION TO RECORD LOTS, IF A RECORDED
2, THAT THE CONSERVATION ENGINEER IN THE CBJTRAL EN6IN~RING DEPARTh@IT COPY OF THE APPROVED RESTRICTIVE COVENANT IS NOT PROVID® TO THE PLANNING APPROVES A STORMWATER MANAb~ENT CONTROL PLAN, INCLUDING A STORMWATER DEPARTMENT WITHIN THIS 14-DRAY PERIOD, FURTHER PLAT REGORDIN66 AND BUILDING
J ~ ~ OPERATIONS AND MAINTENANCE MMIUAL, MID BUDGET, THAT CONFORMS TO PART 10 PERMIT ISSUANCE MAY BE WITHHELQ
- ~1 CHAPTER 9 OF THE CITY GOOE FOR STORMdATER NITROGEN REDUCTION MID I2. THAT RIPARIAN BUFFERS, IN ACCORDANCE WITH THE PRELIMINARY PLAN AND THE STATE S74RhWATEit RUNOFF CONTROL; OF NORTH CAROLINA REGULATIONS, ARE SHOWd ON ANY PLAT FOR RECORDING, AND THAT
~ ~ ~I /`o - ~`o - 3. THAT AS THE DEVELOPER HAS CHOSEN TO OFFSET A PORT I ON OF NITROGEN EXPORT LOAD A NOTE BE PEALED ON ALL RECORDED PLATS STAYING AT THE R I P11R1 AR BUFFERS
. - LIMITATION BT PAYING MONIES TO THE NORTH LAFdOLINA W=TLAND RESTORATION SHOWN ON THIS PLAT ARE SUBJECT TO GRADING AND VEGETATION REMOVAL FUND (NCbRF1 IN ACCORDANCE WITH NITROGEN REDUCTION REQUIREMEidTS OF I IN ACCORDANCE WITH STATE LAW AND THE NORTH CAROLINA DIVISION OF
TION 10-9022. THIS PAYMENT SHALL BE MADE TO NLMRF AND VERIFICATION OF RESTRICT ONS ~ WATER pJALITY,AND MAY BE SUBJECT TD RALEIGH ORDINANCE N0. (2003)445 TG
VI GI NI TY MAP THE AMOUIJT OF PAYMENT SHALL BE PROVICED TO THE CITY OF RALEIGlI 237tTG-4.,03),' CONSERVATION ENGINEER; I3. THAT ALL STORMWATER CONTROL MJ5URE5 AND MEANS OF TRANSPORTI~
4, THAT A HYDROLOGIC ANALYSIS OF UPSTREAM IMPACTS BE SUBMITTED MID APPROVED STORMW+ITER RUNOFF TO AND FROM ANT NITROGEN AND STORRNWATER RUNOFF CONTROL
BY THE CITY OF RALEIGH CONSERVATION ENGINEER AND DWQ FOR THE GROSSING OF SHOWJ AND NOTED ON THE PRELIMINARY PLAN, BE SHOW) CN PLATS FOR THE NEUSE RIVER BUFFER WITH A PUBLIC STREET RIGHT OF WAY; RECORDING AS DRAINAGE EASEMENTS;
PRIOR TO ~PPROWIIL OF GCNSTRUGTI ON DR/WI N66 FOR PURL i G I hPRONEh6~IT5~ 14, THAT ALL P~JMNENTLY PROTECTED UNDI STURB® OPEN SPACE AREAS USED TO MEET
ITARY R EASEM~IT DEED THE NITROGEN REDUCTION RE(~11REMENTS SHALL BE LABEL® ON RECORDED PLA15 AS
5, THAT THE CITY ATTORNEY APPROVE AN OFF-SITE 5NN SEWS PERMANENTLY p~~~p UNDISTURBED OPEN SPACE AREAS, MID THAT A NOTE 8E A1JD MAP FOR THE CITY OF RALEIGH SEWER EXTENSION FROM THE MARCOM PLACED ON ALL RECORDED PLATS STATING THAT WITHIN PERWWENUY PROTECTED
ALL CONSTRUCTION MID MATERIALS TO 8E IN STRICT ACCORDANCE WI .58 @ 2.5 PER 3 BEDR00~1 GI TY OF RALEI ~H MID NGDOT STANbhRDS SPEGI FI GATI ONS t DETAI L 11000RDANGE WITH DEVELOPMENT (PIN 0178.02-85-15321 AND JOSH AND MIN TALTON 1 PIN
T H BDIVISION AND THAT THE UNDISTURBED OPEN SPACE AREAS NO LAND•DISTURBIN6 ACTIVITY,PLACEMENT OF IONS t DETAILS, 0778,02-85-6958) PROPERTIES LOCATED SOU H OF T E SU IMP~VIOUS SURFACE, REMOVAL OF VEGETATION,ENGROACHMENT,OR CONSTRUCTION EASEMENT DEED AND MAP ARE RECORDED WITH THE COUNTY REGISTER OF DEEDS, OR ERECTION OF ANY STRUCTURE SHALL OLGUR EXCEPT IN ACCORDANCE WITH A
4 PER UNIT (2-DRI VEWAY ~ 2-GARAGE) A RECORDED DOPY OF THESE DOCUMENTS MUST BE PROVIDED TO THE PLANNING BUFFER PERMIT FIRST BEING ISSUED BY THE CITY OF RALEIGH;
DEPARTMENT WITHIN 14 DAYS FROM AUTHORI UTION OF LOT RECORDING, IF A RECORDED Y T T ARE NOT PROVIDED TO THE PLANNING DEPARTMENT WITHIN THIS 15. THAT ALL 2d E 3O PERIMETER PROTECTIVE YARDS A5 SHOMI ON THE PRELIMINARY COP OF HE DOU1M~1 S
14 DAY PERIOD. FURTHER RECORDINGS AND BUILDING PERMIT ISSUANCE MAY BE WITHHELR PLANS ~ SHOW~1 ~ PLATS FOR REGARDING Ib. THAT THE FLOOD PRONE AREAS AS APPROVED BY THE CITY fANSERVA110N ENGINEER
I. OVERALL SITE LAYOUT PLAN PRIOR TO PLMININ6 DEPIIR'ihENT NJTHORIUTIgJ TO RECORD LOTS As SHOW) oN THE PRELIMINARY PLAN, SHALL BE SHOwN ON N.L RECORDED PLATS;
2. PRELIMINARY SITE LA~'OUT PLAN 11. THAT THE APPLICANT SUBMIT A CUMULATIVE MAP,SHOWIN6 ALL AGREAGE,LOTS, b, THAT A PETITION FOR ANNEXATION INTO THE GI TT LIMITS BE SUBMITTED IN OPEN SPADE, AND PUBLIC RIGHTS-OF-WAY THAT HAVE BEEN RECORDED TO DATE, MID
ACCORDMILE WITH CITY COUNCIL POLICY FOR EXTENSION OF UTILITY SERVICE TO A TABLE SNOWING THE TOTAL UNITS AND LOTS A9PRiOVED IN EACH PHASE, TOTAL AND
3. PRELIMINARY SITE LAYOUT PLAN PROPERTIES CURRENTLY OUTSIDE OF THE CITY LIMITS. THIS VOLUNTARY ANEXATION IN /K,IB=/uGE IN EACH PHASE, ZONING AND OPEN SPADE ALLOCATED FOR EACH
4. PRELIMINARY SITE DEVELOPhENT PLAN NO WAY OBLIGATES THE CITY TO EXTEND UTILITY SERVICES TO THE PROPERTY; PHASE AND TOTALS OF ALL UNITS,LOiS,DEN5ITY TRANSFER ACRES AND OPEN SPADE 7. THAT A NOTE BE PLACED ON ALL MAPS FOR RECORDING STATING 'ALL TREE5 AND FOR ENTIRE CLUSTER UNIT DEV~OPMENT AND THE RECORDED BOOK MID PAGE OF
5. PRELIMINARY SITE DEVELOPhENT PLAN N T UNDISTURBED ShIOD-I YARD ALONG TFE REQIIRED LEGAL DOU1hENTS,ING.UDING SUCCESSIVE ANNEXATIONS; VEGETATION COLA ED WITHIN THE 50
6. BLACKSBURG DR AND h1~DEVON DR PLAN AND PRO N MID PROFILES NORTHERN WAKE EXPRESS wAY 11-540) AID TO BE PROTECTED IN ACCORDANCE 18, THAT STRffT NAMES FOR THIS DEVELOPMQIT BE APPROVED IN THE PLANNING KITH THE GI TT LODE, AND THAT THE REMOVAL OF SUCH VEGETATION WITHOUT FIRST DEPARTMENT AND BY WAKE COUNTY,
7. Q GONNER ST MID CHARLES DR PLAN AND PLAN MID PROFILES OBTAI NI NG A FERMI T FROM THE GI TY OF RACE I f H I S A VI OLAT I ON OF THE GI TY CODE /~HM9~IT INTO THE PUBI.I G RIGHT OF WAT FOR
GENERN. NOTES; 8. UTILITY OUTFACE PLAN AND PROFILES FINANCIAL 19. THAT AN APPLICATION FOR ENGIiO 11TED TD THE S SUBJECTING THE VIOLATOR AND THE LANCOWJER TO SIGNIFICMIT L/~,IpSLAPE 15LANGS,A$ INDICATED ON THE PRELIMINARY PLAN,IS SUBM
I, BOUNDARY INFORMATION IS TAKEN FROM A SURVEY THIS OFFICE, 9. UTILITY OUTFACE PLAN AND PROFILES CONSEGUENGES'; CITY 5 ENGROFCNhENT COORDINATOR IN THE INSPECTIONS DEPARTMENT FOR REVIEW S FI TAI D LANDSCAPE PLAN SHOWING STREET YARDS AND V611CULAR TTY COUNCIL APPROVE,AS A SEPARATE AGTION,THE ENCROAGHhENTS 8. THAT A NAL DE LE THAT THE G
GOR PUEI. I G I MPROVEhENT QUANTITIES 2. TOPOGRAPHIC INFORMATION I S FROM A F I ELD SURVEY BY THIS OFF I GE. 10. UTILITY OUTFACE 8 LEESV I LEE ROAD PLAN AND 1 PLAN MID PROF I LFS SURFACE PLANT I N65 I N ACGORDNrCE l o-2082, 5 BE SUBMITTED/STMIPED AND REQUEST, AND 1HAT ENLROACHMBJT A6RffhENTS, I N ACCORDANCE WITH RALEIGH
THI ITTAL 3. ALL MATERIALS AND GON5TRUGTION SHALL BE IN STRICT iI. EROSION CONTROL PLAN PHASE ONE ONLY FOR 5 SUBM APPROVED BY THE SITE REVIEW SPECIALIST IN THE INSPECTION DEPARTMENT MID CITY (.ODE SECTION 12-1001 MID 12-1021 l N ARE FILED WITH 1HE INSPECTIONS PLACED ON FILE IN THE PLANNING DEPARTMENT; DEPARTMENT AS f~R NORMAL CITY POLIU ES,AND THAT THE ENCROACHMENT
ACCORDANCE WITH NGDENR, THE CITY OF RALEIGH E NGDOT I2. EROSION CONTROL DETAIL SHEET 9, THAT THIS PLAN CONTAINS SIil~tED STORMWATER DRAINAGE FACILITIES, THAT THE GITYFORMI A(~REEhEIJT BE REGORDE~D WITH THE COUNTY ~61STER OF DEEDS. IF MAINTENANCE
PHASE I~JMBER I STANDARDS AND SPEGIFIGATIONS, 13. EXTENDED DETENTION I~ETLAND POND #3 STORMWATER REPLACEMENTS PROTECTION EASEMENT ACCESS MAINTENANCE Lf THE ENCROALlihENT IS THE RESPONSIBILITY OF A HOMEOWrERS ASSOCIATION OR 3 T PROPERTY S 1 MI LAR ORGIW I ZAT I ON A551 GNED SUCH RESPON51 B I L I TY;
NUMBER OF LOTS 5a 4, CONTRACTOR TO GRADE ALL LOTS SO STORM-RUNOFF IS DIRECTED I BI ORETENTI ON AREA #~4 AGREEMENT PER 10-90271 G! BETWEEN THE DEVELOPER HE ITY COMPLETED, THAT THE SIGNED U TY 20. THAT THE HOMEONEER DECLARATION CONTAIN A PROVISION STATING THE EXISTING 2- ASSOCIATION, MID THE G SHALL BE
I-32 AWAY FROM ALL BUILDING PADS. LOT NUMBER BY PHASE 15. B I ORETENT I ON AREA # 5 T H BE RECORDED WITH THE LOCJtiL COUNTY REGISTRY OF DEEDS, AND GAR GARAGES MNT NOT BE ENCLOSED FOR LIVING SPACE BUT WILL REMAIN AS AGREEMEN S ALL
241-266 5, NO INFRASTRUCTURE TO BE CONSTRUCTED PRIOR TO CONSTRUCTION 16. OVERALL LANDSCAPE PLAN THAT A (APP OF THE RECORDS CITY AGREEMENT SHALL BE PROVIDED TO THE REQIIRED PARKING PLANNINb DEPARTMENT WITHIN 14 DAYS FRAM AUTHORI UTION OF LOT RECORDING, IF 21, THAT 15 FEET IN WIDTH OF RIGHT OF WAY ON LEESVILLE ROAD IS DEDICATED PRIOR TO
NUMBER OF UNITS NSA PLAN APPROVAL AND UTILITY PERMIT ISSUANCE BY THE CITY OF 17. OVERALL LANDSCAPE PLAN J REGORGED A DOPY OF THE U TY AGREEMENT IS N07 PROVIDED TO THE PLANNING OR IN CONJUNCTION WITH LOT RECORDING, THAT THE ADDITIONAL RIGHT IS WAY IS
LIVABLE BUILDINGS 58 RALEIGH ENGINEERING DEPARTMENT, IS. OVERALL LANDSCAPE PLAN DEPARTMENT WITHIN THIS 14-DAY PERIOD, FURTHER RECORDINGS AND BUILDING ELIGIBLE FOR FACILITY FEE REIh18l1R5EMENT WHICH SHALL BE BASED ON R-4 RATES; SHOWI ON THE RECORDED PERMIT ISSUANCE MAY BE WITHHELD 22. THAT ALL SIGHT TRIANGLES ON THE PRELIMINARY PLAN BE
OPEN SPADE 3.7 AG (PRIVATE) 6, WETLAND AND NEUSE RIVER BUFFER DELINEATION BY SOIL AND 19. SITE DETAIL SHEET THAT HOMEOWJ AL DOCUMENTS ARE PREPARED IN ACCORDANCE WITH PLAT AND THAT A NOTE BE PLACED ON ALL PLATS FOR RECORDING STATING THAT 'WIT N 10, ERS LE6
NUMBER OF OPEN SPADE LOTS b ENVIRONhENTAL CONSULTANTS, ING, RALEIGH CITY COCE SECTIONS 10.3O11AND 10-3013, THAT THE HOMEOWNER SIGHT TRIANGLE EASEMENTS NO OBSTRUCTION BETWEEN 2 FEET AND 8 FEET IN HEIGHT ~~pp~~ COVENANTS CONTAIN THE F0.LOWING I N A PROVISION STATING THAT WITHIN ABOVE THE CURB LINE ELEVATION SHALL BE LOCATED IN WHOLE OR PART,OBSTRUGTIONS
PueLIG WATER 4777 LF 7. STRUCTURAL DESIGN OF ALL RETAINING WALLS TO BE PERFORMED A T ATTENTION GONTR G ORS JIW I T NOT LIMITED TO ANY BERM FOL I ACoE, FENCE, WALL, 51 GN, OR PARKED PERMMIENTLY PROTECTED UNDISTURBED OPEN SPACE AREAS NO LAND-DISTURB NG INCLUDE BU ARE
PUBLIC SEWER 2691 LF BY OTHERS, RETAINING WALLS SHOWN ON THESE PLANS ARE FOR ALTIVI n,PLACEMENT OF IMPERVIOUS SURFACE, REMOVAL OF VEGETATION, VEHICLE,'
PUBLIC STREET 2965 LF LOGATI ON AND ELEVATION PURPOSES ONLY. The GONSTRUGTION GONTR~OTOR responsible for the extension of cten5ian of ENGROAGHMENT,OR CONSTRUCTION OR ERECTION OF MIY STRUCTURE SHALL OCU1R 23. THAT A RECOMBINATION MAP BE RECORDED PRIOR TO OR IN CONJUNCTION WITH THE
PUBLIC SIDEWALK 3123 LF 8. EXISTING UTILITIES SHOWN ARE APPROXIMATE. CONTRACTOR water and sewer, as approved in these pions, is responsible for se ansible for EXCEPT IN ACCORDANCE WITH A WATERGWRSE BUFFER PERMIT FIRST BEING ISSUED BY RECORDING OF LOTS, RECOMBINING THE EXISTING LOTS INTO A SINGLE TRACT; P THE CITY t)F RACE I GH, I B! THE MIOhEOWJERS ASSOCIATION BE RESPONSIBLE FOR
RESPONSIBLE fOR LOCATION OF ALL EXISTING ABOVE AND BELOW Gontactina the GENTRAI. ENGIN~ERIN6 DEPl~RTt~NT at 831-6810, 33_ I-68101 COMPLYING WITH THE TERMS OF ANY ENGROALHMENT AGREEMENT tSEE,-LONDLTION
GROUND UTILITY FIELD LOGAT I ON PRIOR TO ANY CONSTRUCT I ON. and the pueul c ur I u I rl Es oEPnRrr>ENr of 8qo-3aao at I east rwENTr h least TWENTY NUMBER 19 88.OW1, I U TMIE WARNING STATEMENTS OF CONDITION NUMBERS 1 ~pp111N/
FOUR HOURS prior to beginnlnq any of their construction. ut i on. AND 12 ! W THE RESTRI GTI ONS ABOUT REUSE OF 61J21ecE SPACE (SEE, CONDITION ,pN A ~Ny NUMBER 20 BLOW . THE LIMITATIONS GONLERNI N6 SITE TRI MIGLES I SEE 4 FRONT 20 FT
. CONDITION NUMBER 22 BELOW , THAT THESE DOCUMENTS SHALL BE RECORDED ~ ~0
FAILURE to notify both GI TT DEPl~RrhENTS in advance of beginning construction, will result in the issuonce of t10NETART FINES, and I DEECS AND THAT A RECORDED DOPY OF THESE ~ CORNER SIDE 15 FT . of beglnnlnq WITH THE LOCAL COUNTY RE6 STER OF Q ~ TARY FINES and COCUMENTS MJST 8E PROVIDED TO THE PLANNING DEPARTMENT WITHIN 14 DAYS MIN. SIDE 5 ~T
AL t i e5 not FRGM AUTHORI ZATI GN OF LOT REGORDI NG, I P RECORDED COPIES OF HChEOWJER S (BAR 20 FT
HVI_IL. require reinstallation of any water or sewer focillties not Mrl It.CWTS ARF AIt1'T P(MV I T~ Tn TNIF PI ANN I N6 fJFPARI7~ENT WITHIN TH 15 14-DAY . ~ ~ _ _ _ _
inspected as a result of this notification failure. PRIEST k-RAVEN Olt,1ASSOUTA ES,1NU. 230 PERIOD, 111RTFffR RELORDI N65 AND BUILDING PERMIT 155UANLE MAY 8E WITHHELD f REV 15 ON S•
I SUGAR BUSH ROAD 5U I TE 400 ~y0~
PLANNERS / LANDSCAPE DESIGNERS / SURVEYORS / ENGINEERS FAILURE to ca I for INSPECTION, INSTALL A DOWNSTREAM PLUG, have 7-AM PLUG, have nr i as of a rr aMgN F nRN~` ~ REVISION #1 CITY 5T1~FF REVIEW 03-25-04
3803 - B Computer Drive, Suite 104,1Zalelgh N.C. 27609 BALE I GH NG 27612 PERMITTED PLANS an the JOB51TE, or any other VIOLATION OF CITY 5sieLe REVISION N2 CITY STAFF REVIEW 04-20-04
Phone [phone] Fax [phone] '782-1951 OFFI GE 5"71-8546 FAX OF RALEIGH STANDARDS Hill result in a FINE AND POSSIBLE Email [e-mail] ExCLU51ON from future work in the CITY OF RALEIGH. REVISION N3 GIN STAFF REVIEW 05-19-04
F ALANO PPOJECT5VCENTEX HOME5\2003-004,001 CENTEX - HARRINGTON POINT RALEIGH\DH6\L0N5TRUGTI0NVPHA5E 1\3RD 5lJBMITTAL\ CON-2003004-00-COVR D,6 , Mby 19, 2004 - 10 11 AM , BEN
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A ~ ~ ~ ~ A\ ~ FFE-51 I.7 33 ~ 2 YEAR 99.90 \ ~ - ~ 10 PEAR WATER SURFACE ELEVATION 4 _ ,
~ , 35 _ PE - \ \ _ e~' ~ ~ - - \ B'ER6ENGY SPILLWAY WIDTH 25 FEET
_ FFE=515, 7 ~ / ~ ~r A ~ \ l~ APE=515.0 - \ ~ \ 501,00 s~~ a B~ER6ENGY SPILLMUY ELEVATION
~ _ - . A s , - - 100 YEAR WATER SURFACE ELEVATION 500,60
A v T~ V - LAND POND # 3 502, ~ D DETENTION ITT T aF BERM ELEVATION EXTENDS oP
C ~ 27 ~ FF 'Si ~ E: I' =40' AN SEAL 494, 00 PLANTING PL I
S ~ E ~ ~ n ~ ~ N '1 PE 516.0 I 7 FOREBAY ELEVAT ON
(j ~ ~ , FFE=5 2. ~ ALL L ~ ~ ~ ~i ~ - ~ PE=512 0 T I ON AND MATERIALS TO BE I N HIGH MARSH ELEVATION 496. ~ ALL GONSTRUG
L~ \ 33 ~ ~ ~ ~ a{ STR I GT _ ~ ~ ~ ~ DANCE WITH THE GI T'f OF RALEIGH, LOW MARSH ~EVATI ON 495' ~ STRICT AGGOR NGDOT, AND NGDENR STANDARDS - MI GRO POOL t3.EVAT I ON 494.00
SPEGIFIGATIONS l DETAILS.
~ - ~ ' ~ _ ~ _ ~ P BLIC FACILITIES , WATER QUALITY POOL DRAWDOWN ORIFICE DIAMETER I INCH UTILITY INSTALLATIONS AND OTHER U MP ARE TO
~ ~ ~ s FFE=511.7 - ~ ~ ~ Q ~PE°517.0 ~ INCLUDING SIDEWALKS AND HANDICAP RA S DRAWDOWJ TIhE FROM FALLING HEAD ORIFICE EpJAT10N 3.2 DAYS
- I, BE CONSTRUCTED ON ALL STREETS AS SPECIFlED BY CITY CODE. THESE FACILmES HAVE BEEN APPROVED
I ~ ~ BY THE CITY OF RALEIGH ANO SHALL BE SO INSTALLED RANGE IS AUTHORIZED BY WRITTEN APPROVAL,
- - - UNLESS A C ~ PUBLIC SANITARY SEWER EASEMENTS ARE TO BE RECORDED
I _ _ _ i - _ ~ ~ ~ ~ ~ 'I i PRIOR TO FINAL ACCEPTANCE, 4 SIGNATURE;
~ ~ _ _ _ _ ~ _ff . _ _ _ _ . _ _ I - I, ~
I i0 _ . _ _ _ _ `---j~- ~ ~ ~ ENGINEERING - HANCI~iffL M4 REBAR
I , W W W t - _ PUBLIC UTILITIES:
J - J J - _ TRASH RACK
I I - - TTtAFFlC ENGINEER;
~~I ~ i, CONSERVATION ENGINEER,
I ~ - - - - - - - - - - - f - - - - - - - - - ~ _ _ ~ I I
t- - . _ - - - - - - - - - 9' X2' NGDOT PRECAST
~ ~ I i I ' . _ _ a CONCRETE DROP INLET
I I - - ..r i _ - _ l I I a STANDARD DETAIL N ,I
I 1 ~ ~ T1 l~. ~ 6'DIAMETER ORIFICE ~ _ _ _ b PER RISER
l5_ - - - - - _ - - _ _ - _ _ _ _ - - - - I
I ADE ~ ~ I I i___.___.._ _ - ~i a
i 10' INIMUM OP WID H _ _ WATER GIIALITY ORIFICE a
. I, _ _ I _ - _ _ _ ; _ _ _ _ ~ _ _ I - - _ _ _ I LF I' DIP a
_L. _ _ _ XI _ . NG
_ ; _ - r-_ _ _ _ _ . _ - - - I ~ GRA
I ~ ~ 3 TOP (DF BERM LEV-502. D ~ ~ b• 4
_ _ I i
~ ~ I E RGENGY SPILLWAY ' i ~ _ _ _ - _ _ _ \ d
_.-'4 - ' ~ - i I 1 _ _ E EV=501, ~ I 1; i 1
. _ ~ I - ~ 1 _ _ _ _ . T OF R I S R - - l
i I 3 ' _ _ a
_ _ _ _ - 1 - - ~ - - i
I 1 _ 4' PLUG VALVE 4 a
I ~ _ I _ - _ _ _ _ - - _ i --L___ _ . _ I
1 I I N MAL P I I
_ i LEV=497.10 I _ a a
-i _ - _ _ _ _ - - - - _ _ _ - d - - ~ a a OUTLET PIPE
I I ~ ~ I ~ 8 E 24 I
i I ~ --C. _____t~______ I PROP ED ~ 2 LF OF 4'DIP A INVERT
@0, ~I b3~, I I ~ ~ - _ _ _ . _ _ RISER DETAI L
~ PRO!' -D- _ - - PES-ITV I I ? LEV-49 FOR INVERTS AND ELEVATIONS SEE PROFILE THIS SHEET ~I
GRADE NOT TO SCALE
INV OU = 494. ~ I _ I RISER ~ _ _ ' _ t
_ LidV._.f d. ...493:.. _ _ _ ; _ O - _ - ~ _ - _ I- ~ I 'v
~ I I VEL ITY DI SIPATOR PAD _ i - t-- _ _ ,,,Illllllllgl!!!//
I I ~ _ _ - - 1 _ _ , L- i hk5,
I ~P =22'_ _ NOAJC SMNI TAKE PLACE ON THE D+W NITHOUi COORDINA11H6 THE OBSERVATION AND TESTING OF THE PROJECT 6EOTEGHT GAL ~ ~~rx~,r~ ~4 I. NO ALL SOIL INTERIMS PRE TO EE: APPROVED' BY THE GEOTELINILAL ENGINEER PRIOR i0 INGUtPORATICN INTO THE EMBANKPEII , ~ ~F~ i
CLA 5 " B' S1fONE i ~ " i ~ _ 2, INSTALL 8tO51CN GCNIROL DEVICES PER THE PLM1 CJ'I.L FOR INSPECTION AND OBTAIN (J3tiIFiC11TE Gf GQfLIANCE, ~ ' ~ REM7,k ~ EXISTING VEGETATION FROM THE @EIAAKMENT SITE, l
_ _ _ _ - - _ p~_ ~ _ _ _ - _ _ _ _ _ _ _ f _ _ . _ _ _ _ - _ I i 3. CUT ALL 1Rff5 ICS POCKETS OF LOCBE SAND, GRAVEL AID AHY UNSUITABLE MATERIAL FQ1ID ~ L
V~o 8.7 F/ I 4, 6RJB ALL TR}E SIUFPS, REMOVE All ROOF HAT, TOFS01 L, OfEaAH • - - _ ALpK+ 11E 8'BANATENT SIIE.
I _ I - - - - I I ~z 5. THE GGNTRAGTOR SMAU. TAKE THE APPROPRIATE MEASURES AS NELESSMtY TO PROTECT THE AREA CF GONSTRJGTIOH FRCH STREAM FLOW A?D • _ ~ ~ l' N ~ 510R11NTER RUNOFF, _ _
- -I- I _ _ _ _ , T THE CU1 OFF TR81LH PER THE PLk1S IWD DIRECTION OF THE 6EOTEG1111ChL 8161 + ~~i ~ ~ N rif ~ b. EXCAVh,E, BAGKFILL NDCOIPAC na1 4~0,1~ P
- - _ _ _ _ _1___ : . _ . _ _ I 1 INSTALL OUTLET STRUCTURE 1 AS INDICATED ON THE PLM15 THE DRAIN VALVE SHAH REMAIN IN THE OP81 :QS` C~,,~r _ _ _ _ _ _ MAS BEEN APPR01'EU Br TIE CITT, h111111111
I _ _ _ _ I _ - _ _ d. R81DVE ANY L005E oR SOFT. 1St 501 LS FROM THE AREA AND I I I N 6 TO 9 I NGH LOOSE ll fT5 AND COMPACt TO h OE1151 TY OF Al LEAS1 951 STNDARD PROCTOR, Cp'PhGT I OH
I I~ - - 9. PLACE 8HNIOENT MAT811 AL _ I TESTING SHALL BE PHIFCRIED 6Y 111E 6BOTEGMNIGH. ENGI11~ AT LOGhTlOllS AND FRI:QIENGT TO BEIDETETd11~BYIFHE ~ILALIFT
F_. _ _ 1 j ENGINEER BASED CN 1HEIR JUD99dT AND EXPERIENCE. SCARLET EAG1 LIFT TO FOIM h 6GY1D BOND INTO THE EXi5TIN6 SLOPE. pMN
1 ~ I I _ . 1 I ~ , _ _ - - SLIGHTLY SLOPED TRNRD DON151REAM TO PR0110TE 1ME DRAINAGE OF SURFACE NA1ER DURING fANSTRJGTICN. ~MN qly// . _ . _ _ _ 10. THE g10At10'ENT Flll SHALL BE L BE SEALED OFT` NI TH A SMOOTH DRUM ROU.81 PRIOR TO NIY PROLONGED DELAY 5JC11 A5 AT THE END Gf ~ ~ ~ R0~ ~ I I, THE SURFACE CF TEE EMBNIQ491T SIV'L H ACE BEFORE PLACING THE NDfT LIFT. a $ ~
- _ _ THE MEEK OR BE3dRE A FORECASTS) STORM. SClRIFY THE SHOOT SURF ? Q , p,ND Cq N _ _ ~ BY SURFACE NATE1t OR ICE SHALL ~ RBIOVED PRIOR TO THE pLACBENT a ~y` ~ '0F~'.'9~$ 12, ANY EIe111O~iT FILL MAIERIN. THAT IS FR0181 OR SOFTSED
1 _ _ _ a ;~o 'I OF ilE NEXT LIFT, BY A PORTMiE CONPhG1ER ~ ; ~ 9~
I 1 - I I 15. ANY ClMAC110N NI THIN THIS PffT FROM THE CCNCREIE NH.LS AITDIOTFHt STI~ ~ COMPACTION SHALL ff TO 951 ~ _r _ . i _ _ - _ _ TO AVOID DAhY1GE TO THE 9TRJCTURE, rHE wUCIHM LooSE LIFT N GxHESS ~ ;U1 1158 ~y:
I STNDARD PROCTOR. CA1'hGTlpl TES11N6 FREOIJENCY SHH.L BE A5 STATED IN 1181 I I I SNN.L EE KEPT DRY AT ALL TIMES BY FEPNS OF Lam, 9UH' PUMPS, TR81CHE5, PIPES ND ANT OTHER MEASURES i7~ ~M` 14. THE CONSTRJCTION 5 TE
t - _ _ , OR EOM PMENT THAT I S REC<I I RID. ~ Q _ __--..___I- . _ _ _ _ 15. FDISTURE CCNT8IT CF THE EMBNKlfNT FILL DURING PLA(.fItTIT SHALL BE NO ICPE THAN II BS.I)i TO 5 1 ABOVE OPTIMJM HJ15TURE CON181T,
j _ I _ _ _ ~ _ I i i ~i4J- r`~ ON CdDiTid15, DRYING OR SPRINKLING MAY BE REOUIR~ CURING Cdt5TW1CTION, •j Q DEPENDI HG
I _ - - AND Cd'PAGTED I N h UNI FORM CGIIT I NUA15 FASIII GH, f F,P+? Ib. TFE EIEN1K1EiIT FILL slNU PE PLhLEl7 AL HAS BEEN 155UED BT THE CITY, ry/ggY M ~ TO THE DRAT N SHhLI NOT BE CLOSED NOR ANY Nh1ER I IPOUN[fD B81I HD ilE DAIt LN11 L THE APPRON ~gNnnrlN~
I _ - - - r, n n ~ I- nn I1 THE GATE
+UU LT VV
i 0+00 I+00 2+00 3+00 +
REV15101 NI GITY STAFF REVIEW 09-25-04
A T E K u H ~ E ~ ~ E H - S( ,~E ~~T~~u 'I°~ STORM WATER MANAi
ANAGEMENT REVISION N2 CITY STAFF REVIEW 04-20-04 TAFF REVIEW 05-19-04 REVISION M3 CITY 5 PFJEST,C-R-A-VEN ETLMD POND # 5 LANll USE CONSUL l AN 1 S PLANNERS/ LANDSCAPE DESIGNERS/ SURVEYORS / ENGINEERS
HARR I NGTON O I NT DATE: FEBRUARY 20, z~4 EXTENDED DETENTION WETLA~ Raleigh, N.C. 27609. Phone 919 / 781-0300. Fax 919 / 782-1288. Email PriestCraven(~ncxr.com 3803 - B Computer Dave, Swte 104 PRELIMINARY NOT-RELEASED FOR CONSTRUCTION
GENTEX HOMES PHASE ONE RALEIGH, NORTH CAROLINA PROJECT: 2003-004. 001

r
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W AN ~ CPT H0~ I C D ROM BUFFER. AREA ~~QUIRED~
X BM I ~8~ PAS--- ~ , X50 53 w ~ ~ ~ I _ A 0347 P 6E 440. ~ x 4 0' = , I oo s .AREA DB 5o z ~ o
~ f ~ ~ ~ PRDU I DED = ~ I , 000 1 ' M X87 PA ~ x,680 B
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LARRY PH~,L~ I P SRI D6E5 DDB 642 ~ AGE ._0 I I
i _ VAR I ABC' H GHF~AR~ - J
T / _ L ~ I NWOOD C. BARL~?l~
I X78 PACE ~5 - X015 SPIKES BERRY ~1 B - RE D; I ~'V
- ~ SON I NG R~ I X52 P6: 2 3 DB DB 8322 PAGE 2I ~0 EA .N .250 _ ~7
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ZON I NG• R
N07ES:
1, ASPHALT INSTALLATION IN TWO APPLICATIONS: 1 1/2" & 1'~.
2. USE WHEN STONE/ASPHALT COMBINED DEPTH IS GREATER THAN GENERAL NOTES
oR EQUAL ro 1a' DS140~ ~Rgi~l~ 3. A BERM WIDTH Of 9.5' IS REQUIRED ON LOCAL ACCESS SYSTEM R/W
ROADWAYS WITHIN 50 FEET OF ANY INTERSECTION AND WITHIN 45' R16HT OF WAY R16HT of WAY cL A, ALL LAND DISTURBING ACTIVITIES SHALL BE CONDUCTED IN E. VERTICAL RELATION OF SANITARY SEWER MAINS TO STORM SEWER ACCORDANCE WITH AN APPROVED EROSION CONTROL PLAN,
100 FEET OF ANY INTERSECTION ON COLLECTOR STREET SYSTEM ~a~ ROADWAYS. SEE STREETS, SIDEWALKS AND DRIVEWAY ACCESS HAND $ P 2 2 2004 „ WHEN A SANITARY SEVER IS GROSSING OVER OR UNDER A STORM
BOOK (DESIGN CRITERIA. ~ ° 4 SLOPE=1"~ FT. o B, ALL GONSTRUGTION AND MATERIALS TO BE IN S"rRIGT ACCORDANCE SEWER, A VERTICAL SEPARATION OF 18 INCHES SHALL BE 21.5' Exisr. WITH CITY OF RALEIGH STANDARDS, MAINTAINED UNLESS BOTH LINES ARE OF A FERROUS MATERIAL,
4. THE PAVEMENT DESIGN FOR MINOR THOROUGHFARES SHALL BE A ~ ~ .,~I - 3~ 5 „ a ° ~ o ~ 12, 5' 21.5' MINIMUM OF 8" ABC, 3" BCBC TYPE H AND 2 1 /2" Of BCSC I ~~r~~.~ ~ ' i ~V;~ ~ ~ a ~ a ° ii.o'+/- C, HORIZONTAL RELATIGN OF WATER MAINS TO SEWERS F, GENERAL VERTICAL CLEARANCE
TYPE I-1 OR I-2. THE PAVEMENT DESIGN FOR MAJOR THOROUGHFARES ° , 2.5'
AND ARTERIALS SHALL 8E A MINIMUM OF 8" ABC, 4 1~2" BCBC TYPE H _ 2' S -1 R I-2. THESE PAVEMENT DESIGNS MAY ~ ,o AND 2 1/2" OF BCSC TYPE I 0 ° a o ~ ~ a ~ / ~ LATERAL SEPARATION OF SEWERS AND WATER MAINS, WATER MAINS WHEN OTHER UNDERGROUND UTILITIES ARE ENCOUNTERED, 12 INCHES
BE INCREASED BY THE ENGINEERING DEPARTMENT BASED ON TRAFFIC ~r, ExTEND AT Ex. SHALL BE LAID AT LEAST 10 FEET LATERALLY FROM EXISTING OR OF SEPARATION SHALL BE MAINTAINED. CROSS SLDPE PROPOSED SEWERS, UNLESS LOCAL CONDITIONS OR BARRIERS PREVENT
VOLUMES, SUBGRADE SOIL STRENGTHS AND/OR TRUCK VOLUMES. STnNDnRD I/d/FT R/w sIN6LEHn~DICnA R/w ~8"- 12 ~F~~ 5 SW A 10 FOOT LATERAL SEPARATION - - IN WHICH CASE G, SEWER SERVICES
SEE DRIVEWAY DETAIL ~ SEE S>~DARD ~
WITH SIDEWALK ND. 20. I I 3O• STANDARD Cf G \ STD. N0. 20.01 ~ I, THE WATER MAIN IS LAID IN A SEPARATE T NGH I TYPICAL SEVER SERVICE TO EACH LOT IS TO BE A' PVC, SEE C 20.31 ON THIS PAGE ~ W TH THE 1.2 ELEVATI~! OF THE BOTTOM OF THE WATER MAIN AT LEAST 18
2" TYPE I -2 AGGREGATE BASE cou~sE INCHES ABOVE THE TOP OF THE SEWER. OR H~ WATER SERVICE 'E H USE WHEN STDNE/ASPHALT COMBINED
~ 3. 30" VALLEY TYPE GUTTER 3• TYPE H 10" C, A. 8. C. B. c. DEPTH is GREATER THAN oR EQUAL To is°. 2. THE WATER MAIN IS LAID IN THE SAME TRENCH AS THE SEDER TYPICAL WATER SERVICE TO EACH LOT IS TO BE 3/4' COPPER
SEE DRIVEWAY DETAIL W1 P1 SIDEWALK WITH THE WATER MAIN LOCATED AT ONE SIDE ON A BENCH OF WITH DUAL CHECK VALVES ! FORD ANGLE CHECK VALVES;.
SEE NOTE 1 SID. N0. 20.01 V I LL L- UNDISTURBED EARTH, AND WITH THE ELEVATION GF THE BOTTOM I, EXISTING UTILITIES ING W N OF THE WATER MAIN AT LEAST 18 INCHES ABOVE THE TOP ~
E E aN sTO No zoo-~ ' THE SEWER,
- 65 OW 12 2 90 NT CONTRACTOR SHALL VERIFY EXACT LOCATION AND GRADE OF ALL PAV 65 12 D. VERTICAL RELATION OF WATER MAINS TO SEWERS EXISTING UTILITIES PRIOR TO BEGINNING CONSTRUCTION,
Rw lW NO SCALE NO SCALE
c c GROSSING A WATER MAIN OVER A SEWER, WHENEVER IT IS J, ALL SANITARY SEWER LINES ARE 8' UNLESS OTHERWISE NOTED,
C C R/W R/W R/W O A/W NECESSARY FOR A WATER MAIN TO GROSS OVER A SEWER, THE WATER MAIN SHALL BE LAID AT SUCH AN ELEVATION 1HAT THE BOTTOM OF
o © ! ° THE WATER MAIN 15 AT LEAST 18 INCHES ABOVE THE TOP OF THE K. LANDSCAPED 15LANC5 WILL BE MAINTAINED BY THE HARRINGTDN
~ SYh~OL. LEGEND z, ap as' ~ ® as' s.e' S' ~r• "qk as, ® ~ z.A' as s' x >r c~c ~ SEWER, UNLESS LOCAL CONDITIONS OR BARRIERS PREVENT AN 18 POINT'S HOME OWNERS ASSOCIATION AND NOT THE CITY OF RALEIGH, INCH VERTICAL SEPARATION IN WHICH CASE BOTH THE WATER
~/4" fL CBtD ,/pr-Fi. i/y~'T, ry~l SLOPE i/4A EL L 1/~ ~/p•~T b. MAIN AND SEWER SHALL BE CONSTRUCTED OF FERROUS MATERIALS
SLOPE 1 4' FT, C L ® 14"/FT, z'~ ~ 4 pT . ® ~l4" fT, • ~7 M DRAINAGE WATER f SEWER bqA, r~. ,,J•...;....., SIDEwAIx pX M~'~ ° r ~ ~ ~ SIDEWALK K ~ AND WITH JOINTS THAT ARE EQUIVALENT TO WATER MAIN STANDARDS FOR A DISTANCE OF 10 FEET ON EACH SIDE OF THE POINT OF
M1,~ ~ END SECTION FIRE HTDR/JJT FLARED ® BITUMINOUS CONCRETE SEE NOTE Z SECTION C-C BITUMINOUS CONCRETC ~ Illllll/~,l GROSSING. CA
SEE NOTE 2 SECTION C-C O aca+ECaTE BASE cauasE ~ GATGH BA51 N H GATE VALVE RD o ~i
® AOOREGAIE BASE COURSE COMPACTED SUB IRaDE ~o VAwE CROSSING A WATER MAIN UNDER A SEWER. WHENEVER IT IS p
RESIDENTIAL STREETS RESIDENTIAL STREETS FO COMPACTED SUB GRADE STORM MANHOLE BLOW OFF AND GhTE VALVE R/W a B c D E c CI tY OF RALHGH A/w a e c D E c CI7Y OF RALEIGH ~ NECESSARY FOR A WATER MAIN TO GROSS UNDER A SEWER, BOTH THE WATER MAIN AND THE 5EWER SHALL BE CONSTRUCTED OF A
sD' 4r 20.5' ~e.o' z I/2° i-2 e" Aec 9.~ eD' 4r 2a s' ie.o' 2 i/2" I-2 a" aec 9.5 ~ YARD INLET Q WATER SERVICE FERROUS MATERIALS AND WITH JOINTS EQUIVALENT TO WATER MAIN
55~ 36' 18.0' 15.5' 2 1/2' I-2 B° ABC 9,5~ GENIRAL ENGINEERING DEPARTMENT 55' J6' 18,0' 15.5' 2 1/2" I-2 8° ABC 9.5' CENTRAL ENGINEERING DEPARTMENT CTAI11'1Al~l'1C c/1U A f11 CTAAI/G /1C I/1 GAT (lAl FLr'U SI f1G (1F T4JF D/111JT i. ~hl//~9 mow:
50' 31' 15,5' 110' 2 1/2" 1-2 6" ABC 9.5' PArE 7/5/00 CRAW er: JTe 50' 31' 15.5' 13.0' 2 1/2" 1-2 6° ABC 9.5' - flare 7/5/W cRUAN ar: JTa GRATED INLET • J1 rVVVrIMVJ I VI, I\ VI JIf%I`IVL VI Iv I L-L v1A t-1 V~lI ~ I V" W1 II1V I vI II ; OF CRO55ING, A 5ECTION OF WATER MAIN PIPE: SHALL BE CENTERED AT
45 26' 13.0 0.5' 2 1/2" 1-2 6" ABC 9.5' 45' 26' 13.0' 10.5' 2 112" I-2 6° ABC 9.5' SEWER MANHOLE RESIDENTIAL NOTES: STANDARD THE POINT OF CRO551 NG, '~yG
STREET 1, ASPHALT INSTALLATION IN Two APPLICATIONS:, 1 1/2" & 1 RESIDENTIAL No SWALE / DITCH • SEWER SERVICE DETAIL 2. USE WHEN STONE/ASPHALT COMBINED DEPTH iS GREATER THAN CUL-DE-SAC
STD. 20 31 OR EQUAL TO 10 STD. $ 20,32
REV. #I CI TY CafENTS 10.08.03
A CLUSTER UNIT DEVELOPMENT OF ATTACHED AND DETACHED TOWNHOMES SCALE: I°=60' PRELIMI NARY SITE 03 REV, N2 CITY U"ENTS 10.23.
51 TE P.D.I.EST.CRAVEN &AsSOCIATESINC. 5 OF
HARRIN6TON POINT F DATES SEPTEMBER II, 2003 DEVELOPMENT PLA~ PLAN LAND USE CONSULTANTS PLANNERS / LANDSCAPE DESIGNERS / SURVEYORS / ENGINEERS
3803 - B Computer Drive, Suite 104 Raleigh, N.C. 27609. Phone 919 l 781-0300 Fax [phone] _ Email [e-mail]
ISPONSEf;MD 8Y: CENTEX RALEIGH, NORTH CAROL I NA PROJECT: 2003-004.001 PRELIMINARY NOT-RELEASED FOR COt4STRUCTI ON
F VBEN\LAIJD PROJECTS R2\20173-004.001 CENTEX LEESVILLE ROAD\DWaAPRELII'll NARY\2ND-SUBMITTAL\ PRE-2003004-5DEV-04 q-Ci, (kt 24, 2003 - 1 1.29 AM ADIaNISTRATGR

DOMINION PARS
DEVELOPMENT,
DB 4595 PAGE
ZONING: R-
30'1 PERI ME TER PROTECTIVE YARD.
104 103 1
PE- 73.67 102
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PE- 71 67
105
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PH\,LLA P BRIDGES
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PH\,LLA P BRIDGES
DB b42�,,SAGE 20
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20"
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REV. I CITY CONMENT5 0.51 TE REV, Y2 GI TY GCMENTS IddCRAvEN •
I " =60' PRIEST
A CLUSTER UNIT DE_VELO
HARR I NOTION PO I NT DATE SEPTEMBER II, 2003 DEVELOPMENT PL~ PLAN LAND USE CONSULTANTS PLANNERS / LANDSCAI'E DESIGNERS / SURVEYORS /ENGINEERS 3803 - B Computer Drive Suite 104 Raleigh, N.C. 27609. Phone [phone]. Fax [phone] . Email PriestCraven(a)nc,rr.com ,
PROD EDT: 2003-004.00 I PRELIMINARY NOT-RELEASED FOR CONSTRUCTION
F I - - PMENT OF ATTACHED AND DETACHED TOWNHOMES SGALE SPONSERED BY: GENTEX RALEIGH, NORTH CAROLINA
F \BEN\LAND PROJECT 5 R2\2003-004 001 GENTEX LEE5VILLE ROADVD'6\PRELIMINARY\?ND-5UBMITTAL\ PRE-2003004-5DEV-06.Db16 . (k+ 24, 2003 - 11: 31 AM , ADMINISTRATOR

~ ~ y- ~ ~ ~
, ' \ 3
~ ~ PRI VATf
' • DRkVE
~ ~~e • _ _ _ _ _ . _ _ ~9 " I , ALL WORK SHALL BE CONDUCTED I N STRICT ACCORDANCE WITH THE PLANS AND SPED I F I GAT I DNS. THE , RK SHALL BE TIRE
/ \ _ - ~ CONTRACTOR SHALL G CTOR SHALL CAREFULLY READ AND THOROUGHLY UNDERSTAND THE PLANS AND EN
a a I GEOTEGHN I GAL REPOR .HN I GAL REPORT PRIOR TO BEGINNING CONSTRUCT I ON.
~Ut~' m . • ~ ~~Q r, _ 2, NO WORK SHALL TAKE ON THE EMBANKMENTS WITHOUT COORDINATING THE OBSERVATION AND K SHALL TAKE PLACE HE
TESTING OF THE PRO T GEOTEGHNICAL ENGINEER, ALL SOIL MATERIALS ARE TO BE APPROVED BY T ~ IG OF THE PROJEG a. TION INTO THE EMBANKMENT, `
~`7 ~ • GEOTEGHN I GAL E~IGI N ,HNIGAL ENGINEER PRIOR TO INGORPORA TE PEGTION AND OBTAIN GERTIFIGA VI GES PER THE PLAN, GALL FOR INS .L EROSION CONTROL DE ~l -Z
s I 3, INSTALL EROSION CO • • G I # 87 ~ OF GONI'L I ANGE. ~'l.l ANGE. ~ ',ti
252 ~ ~ ~ _ ~ ' 253 ~ I 4, GUT ALL TREES AND I TING VEGETATION FROM THE AREA OF THE BIORETENTION E _ _ _ .L TREES AND REMOVE ALL EX S ~ ,
~ ' BASIN. - z 005E SAND, / a~
u., ~ 5. GRUB ALL TREE STUN FFE=518, 7 ~ ~ . . ~ ~ I65- ~ +LL TREE STUMPS, REMOVE ALL ROOT MAT, TOPSOIL, ORGANICS, POCKETS OF L WITHIN THE LIMITS OF THE BI ORETENT I ON BAS I N. / ~ ~ ~
GRAVEL, AND ANY UN / PE=518.0 2 ~ AND ANY UNSUITABLE MATERIAL FOUND o , SSARY TO PROTECT THE AREA / ~ I - ~ ~~~V
FFE=519.7 Q • ~ ~ b, THE GCNTRAGTOR SHA ~ITRAGTOR SHALL TAKE THE APPROPRIATE MEASURES AS NEGE F OW. ISTRUGTION FROM STREAM L T
PE=S i 9.0 256 W V ~ ~ ` aF GONSTRUGTI ON FR a FFE=520.7 ~ ~ + ~ 7, PLACE EMBANKMENT N ~ _ ~ AGT TO A DENSITY OF AT LEAS ' -1 EMBANKMENT MATERIAL IN b TO 9 INCH LIFTS AND GOt"~' ,o
PE-520,0 FFE=520.7 u, Q + STANDARD PROCTOR. AGT I ON TESTING SHALL BE PREFORMED BY THE GEOTEGHN I GAL ENGINEER AT i _ ~RD PROCTOR. COMP ` ,
PE=520. o z / + LOCATIONS AND FRED FRE(~JJENGY TO BE DETERMINED BY THE GEOTEGHNIGAL ENGINEER BASED GN THEIR ~ . ONS AND ~ ` ~ FT. BENCH _
_ ~ ~ 257 XPE - FFE=520.7 ~ JUDGEMENT AND E A GOOD BOND WITH THE NEXT LI / 'ENT AND EXPERIENCE. SCARIFY EACH LIFT TO FORM _ ,
258 EACH LIFT INTO THE PE=520.0 `2,59 ~ KMCNT F I L I TING SLOPE, .I FT INTO THE EX 5 ~ AM TO PROMOTE THE KMENT FILL SHALL BE SLIGHTLY SLOPED TOWARD DOWNSTRE 1BAN - ~ i____~ "
,i~ ~ & THE EMBAN lGE OF SURFACE WATER DURING GONSTRUGTION, ~~-3 --1---~'/
~ FFE=521,7 DRAINAGE OF SURFA( ~ _ 260 9, THE SURFACE OF THE ~ ~ ~ PE-521.0 D OFF WITH A SMOOTH DRUM ROLLER PRIOR TO _ ~ ~I 1RFAGE OF THE EMBANKMENT SHALL BE SEALE
, ~ FFE=52i 7 261 ANY PRaONGED DEL,a LASTED STORM. ' - - ZOLONGED DELAY SUCH AS AT THE END OF THE WEEK OR BEFORE A FORE ~Y_4
~ Q PE=521.0 FFE=522.7 SCARIFY THE SMOOTf 1 262 =Y THE SMOOTH SURFACE BEFORE PLACING THE NEXT LIFT, , - ~ " BER-3 ~
AO' L I DE in PE=522.0 10, ANY EMBANKMENT F i L RI P RAP L I N ~FE-522.7 ED PRIOR 1 1BIWKMENT FILL MATERIAL THAT IS FROZEN OR 50FTENED BY SURFACE WATER OR ICE SHALL % 'LOVED PRIOR TO THE PLACEMENT OF THE NEXT LIFT, , ' % I "
ES# 90 ' ~ ~ REr10V EADE / "M~ PE-522.0 FFF=52z~7 II. ANY COMPACTION W11 ~AGTION WITHIN THREE FEET FROM THE CONCRETE WALLS AND OTHER STRUCTURES SHALL BE ~ " i
o ~ ; ~ ~ ~ 11.0 PE=522.0 FFE=523.7 PREFORMED BY A POF T E C,OhPAGTER TO AVOID DAMAGE TO THE STRUCTURE, THE MAXIMUM LIFT ~"ED BY A POR ABL
- ~ THICKNESS SHALL BE 16.0 PE=523.0 _ BE 4 INCHES AND MINIMUM COMPACTION SHALL BE TO 95~ STANDARD PROCTOR. lE55 SHALL ~ -
/ COMPACTION TESTING FREQUENGY SHALL BE AS STATED IN ITEM 1. ,TION TESTING ANS OF COFFERDAMS, SUMP
/ ~ STRUGTION ~ ~ ~ ~ 12, THE GON i , ~ ~ ~ ~ ; ~ PUMPS, TRENCHES, f ~JSTRUGTION SITE SHALL BE KEPT DRY AT ALL TIMES BY ME I S REQUIRED. NT I ~N AREA # TH R MEASURES OR EQUIPMENT THAT B I ORETE TRENCHES, PIPES AND ANY 0 E T x
5 0~ / - 15 RCP ~ / ~ . - - - ; ~ - _ 13. M01 STORE CANT N ~ - / i~ JRE CONTENT OF THE EMBANKMENT FILL DURING PLACEMENT SHALL BE NO MORE THAN I~ ABOVE 0 3 I -3a SCALE.
~ OPTIMUM M01` PRI NKL I NG MAY BE PLANTING AREAS OPTIMUM M015TURE CONTENT, DEPENDING ON CONDITIONS, DRYING OR S
~ ~ / ~ i9 o ABOVE ' / ~ ~ ~ - - ~ REQU i RED DURING G( a) / ~ ~ ° 0 20 tED DURING CONSTRUCTION,
~ ~ ~ i ~ KMENT F I l / ~ , 21 14. THE EMBAN 1BANKMENT FILL SHALL BE PLACED AND COhPAGTED IN A UNIFORi~ CONTINUOUS FASHION. .L CURB INLETS AND IGSOGIATED STORM SEWER. BAGKFILL MID GOhPAGTION OF THIS SEWER
~ / r j ~ - ~ 15, INSTALL CURB INLE1 - ~ . , ' _ _ - , SHALL BE CANRJGTE[ D TESTING OF THE PROJECT GEOTEGHNIGAL ENGINEER ~ BE GONRJGTED UNDER THE SUPERVISION AN
~ E 15' W I DEiR I P RAP - A ,i TO THE CONI'AGTION i,== / --SF~CLWAY WITH ~ ~ GONPACTION REQUIREMENTS GUTLINED IN ITEMS 7 AND II ABOVE.
_ - , - - ' ~ GEOTEXT I LE UNDERL I NER I b, DO NOT BEGIN I NST ~ Y f BEGI N INSTALLATION OF SAND FILTER, DRAIN LINES, PLANTING 501 L PLANT MATERIAL, 110 ~ ~ 3,2p0y,F. (0.07 AG)
_ f-- AND HARllWWD MULGF _ - ~ , " - 1by ~R1~,IOOD MULCH, UNTIL THE ENTIRE SITE 15 COMPLETELY STABILIZED, :400 (yT~y/p,GR~ PLANTING DENSITY . . . . .
I7. INSTALL 12 THICK NUMBER OF PLANTINGS . , , , . , . , , = 28 _L 12 THICK SAND BED AND 4 PERFORATED DRAIN LINES. : 3:1
' ~ i' - - ' HEADWAL ~ I NV', ~FO#4 . - - - - . - _ _ _ _ ~ r 18, INSTALL 4' THICK f ' HI PLANTING SOIL BED, PLANTING SOIL SHALL BE A SANDY LOAM , WITH A CLAY SHRUB /TREE RATIO _L 4 T GK P R HOUR, PLANTING NUMBER OF TREES
- ~ ; " ELEV= I I.O~ ~ CONTENT OF LESS TI " TION RATE IN EXCESS OF 0,52 INCHES E - 7 VT OF LESS THAN 25 AND AN INFILTRA
~ 1 _ . ~ SOIL SHALL BE IN I - - SHALL NOT E7(GEED ' ,F1"PVC WITH 3/8' PERFORATIONS -ON _ - SHALL BE IN A PH RANGE OF 5.5 TO b. 5, ORGANIC MATTER FROM 1,5 % TO 3,0 AND SOLUBLE SALTS NUMBER OF SFIRllB9 21 00 PPM, PLANTING SOIL SHALL BE TESTED PRIOR TO PLACEMENT TO CONFIRM NOT EXCEED 5
_ b' CENTERS WITH 4 HOLES PER" ROW ; ' , ` - - - PROPERTIES, ~T I ES.
- - MIN, IN FILTER FABRIC SOCK. _ 19, PLACE PLANTING 501 PLANTING SOIL IN 12 INCH LIFTS AND GOhPAGT LIGHTLY,
20. INSTALL PLANT IMTf ~ _L PLANT MMTERIAL PER PLAN,
- - - - 2I, INSTALL A 2 IN ' _L A 2 I NGH THI GK LAYER OF 12 MONTH OLD SHREDDED HARDWOOD MULCH, (ant j5t - Bjoretention Area #4 T ical P L yP
,y ~iA.lal Nape po. IEool
I N N I [iRll 2 w. R.e Oak [iNr'cub rub'vm 2.B' aallP.r Be. Plan rw' MAX) B!B - Ilsx 5nanrock' b-24" Bee Plat conldna(9 Eau
. _ - - ~---a - - ~ ~ ~ ~ ~ ' ~ 165 a - - _ - RB kve RNer Brch Bewb nlga, flsMtage' Z5' caliper' gee Plan (w' MAXI B~B__
15' I _ - - ROD 3 tilrvb RedDeW Doghood Game ?tonNera 74^Db' Bse Plan GontcNnerf5 6d)
_ . ~ _ _ - - - -ir i ~ _ RM 4 free OcWber' 61ory Psd McpN Ater nRxtrn 'OCkbsr bkxy' 4.5'<,al Bee Plat (w' MAXI BIB
I ~ i _ 1 _ ~ ~ I ~ TOP OF EMBANKMENT EA 4 throb ~~yt~ a~ 18-14" See Plan Gantd 6a -
i I i ~ _ _ IKMENT _ wBY 4 elrvb Wrderben~y Ikx wrtwiWta 1a-74' gee Pkrt Gontdner(B GaU 5 18, 50 GontalrrA3 6aU
_ _ _ i _ l2__.._ S4 ' ~ f _t- - i BHt 9 ~frub BerUa'k ~'"9a''9N IE-Z4' Bee Plat LINE SPILLWAY
; I I i - T I T yRpNp coves . o~P ~ Haa» ata s+~ wiar+~ov rurM oval eaxr~ Rrvrtlw.,¦s, _ I WITH RIP RAP I
~ I ~ - ~ _ I ~ , ~ ~ I~ II -I I I- - 3 517.75
3
fi ~ ~ ~ i
EXISTI G _ - - N, T, S,
GRADE ; ~ I i
I _ - _ _ - j----- - t- r -
i RIP APRON I - - - r- - - _ _ _ . j-------____-- _ - tfVEL ~PREi~ER-
i l SEE DETAIL) I,
I 1- - _ f , I N
~ I F 90 WITH ~ ~
~ - - - T ~ BERNk 18,50 i - - OP ~ OF ~ PROPOS D ~ _ _ _ . _ _ _ 24' ~
I _ _ _ _ _ _ - a _ _ _ _ _ _ I- - - - _ i -SPI,LLWI~'( ELE 517.7 ; GRADE ~ FOR LBrG 4 MIN,
i ~ i
2' -4' HA DWOOD MJL H ~
- - I ~ _ . _ _ _ - - 2 @ 2 X 2 FEET RISER SIZE
- - I i ; j ~ - - 15 INCH
. I - - _ I- _ - - i BARREL DIAMETER
~ ~ ANTI - - PLANTING 501 L 5 I b. 50 ELEVATION AT TOP OF
NOib USE NGDOT U.A55 ' B' RIP-RIP; ~ PLANS OF SOIL 5 I I.50
I - ~ - - _ _ _ _ _ - - -----___E____ _ - - i-- - _ N57 STONE TO H ELEVATION OF BOTTOM SPREAD ALON6 TOP ~ 51 ZE MD DST
t I ~ I j ' Lam. NEAP ~ ~ RISER 5 17 , 25 IP_RAP RETAINING ELEVATION OF TOP OF
arr~iERr~ w~LL at FES 511, 18 ~ 511.5 INVERT ELEVATION AT RISER
, . , . ~ ~ y i i ~ z Ir RfP
_ _ _ - _ _ _ _ - b PERFORATE 1 , BIOA l H ADWALL FES 511,00 RT ELEVATION AT E / INVE BIORETBlTION AREA 15 FEET
~ I ~ I i IN IN MI I I _ EMERGENCY SPILLWAY WIDTH
~ F I T R WRAP; 38 LF 15' I 3 LF 15 RUNOFF FROn RIP RAP To I I,o rN.T>~ FABRIC 5 I ~ . ~ 5
I Ate' I~ EMERGENCY SPILLWAY ELEVAT i ON DISGFNflGE AS SHB:T RON 6' D&~ NGDOT N515T4~E TO BIORETBITIAI AREAS, FILTER EB.ANKET T I ON 5 18.50
r ~ ~ i TOP OF BERM ELEVA
I i j-- - _ - I - - - _ _ _ _ _ _ _ _ . _ _ j - _
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~ I _ ..-.._.1_ --b'i~D ~ ~ 1.----- - ! _ _ - _ I - - -
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_ _ , _ i._..-- - - ~ I ~ ~ O
I t - _ _ _ - _ - W r------- - UTILITY INSTALLATIONS AND OTHER PUBLIC FACIIJTIES , INCLUDMG SIDEWALKS ANO HANDICAP RAMPS ARE TO
I ~ ~ I ~ I hw- > ~ BE CONSTRUCTED ON ALL STREETS AS SPECIFIED BY Cf1Y CODE. THESE FACILITIES HAVE BEEN APPROVED
. _ _ _ W - I-- _ ~ ~ - w l BY THE CITY OF RALEIGH AND SHALL BE SO INSTALLED
I j ~ J V E- it N J v H ~ UNLESS A CHANGE IS AUTHORIZED BY WRITTEN APPROVAL PUBLK: SANITARY SEWER EASEMENTS ARE TO BE RECORDED `,Ip1111111111//j~
f I - -f~ ~ PRK)R TO FlNAL ACCEPTANCE, ~ CA RQ N CARQ /b, SIGNATURE; ~ t~~ ~ ~j
i ~ > - ~ ~ j j NI I ~ _ j--__- _ i_ - - _ _ ___~n _ -4_.- _ - f'1DSC '~,ti 0 ~i
I I _ _ r-- I? ENGINEERING ; Q - t _ 4~ 9
l ~ ~ - :W Al PUBLIC U1IUTIES: :N ~ . 1158
I _ I m - m JlL JLL _ _ ' - I
- _ _ a i-- J J I ALL CONSTRUCT I ON AND MATERIALS TO BE I N TRAFFIC ENGINEER; ~ ~ ; F I ~ p .,,y GI NE ~
I W- OI 2 Z W O ~I N tl 1- - _ t/1 lL I- b0 30 I D STRI GT ACCORDANCE WITH THE GI TY OF RACE GH, J-'~,,, ~ , 0 ~ NGDOT, AND NGDENR STANDARDS CONSERVATION ENGINEER: R EPA' ~q S F. ~ 1~~
_ A~_A Y M
SPEC I F I GAT I ON5 E UETA I L5
0+00 1+00 2+00
REVISION MI CITY STAFF REVIEW 03-25-04
=3d A CLUSTER UN 1 T DEVELORh EN T WRI ZONT& I'
SGALE' a3' VERTIGN. I STORM NATER MANAGEME 05EMENT REVISION N2 CITY STAFF REVIEW 04-24-04 REVISION N3 CITY STAFF REVIEW 05-19-04 PRIEST CRAVEN & ' AsSOCIATES,INC. or-
HARR I NGTON PO I NIT DATE. FEBRUARY 20, 2004 1 BIORETETION ARA #4 USE CONSULTANTS PLANNERS /LANDSCAPE DESIGNERS/ SURVEYORS /ENGINEERS LAND
H CAROLINA PROJECT: 2003-004, 001 3803 - B Computer Drive, Suite 104 Raleigh, N.C. 27609. Phone 919 / 781-0300. Fax 919 / 782-1288. Email PrlestCravenc~nC.rr.COm 19
HOMES PHASE ONE RALEIGH, NORTH ICENTEX PRELIMINARY NOT-RELEASED FOR CONSTRUCTION
Nr' r'N, il' li ;L'4TF "qlf '1,33-Ck'l,X,I ±FNIE, - HA.PFINGT(fl P0 I1if - BALL ,,+I 1L-&LON5TRUUIGN\PHA5F I\3RD 5JBMITTAL\ LON-2003004-1 4-B104 DUG , hby i4. 2004 - 3: 12 PM BEN

4
~ i. ~ ~ ,
f y ~V i ~I7.0 FFE=SI
/ ~ ~ i - ~ CI #82 ~ ~ 24 ~ ~ - PE=51~
- ~ - -r--- ~ ~ ~ ~ i + _ ~ ~ ~ WORK SH, WITH THE PLANS AND SPEGIFIGATIONS. THE ~
- ~ / I ; ALL V~ - ~ i GCNTRAGTOR ' ALL WORK SHALL BE CONDUCTED IN STRICT ACCORDANCE TIRE D THORGUGHL'f UNDERSTAND THE PLANS AND EN RB-I / GCNTRAGTOR SHALL CAREFULLY READ AN
A ~ ' ~ ~ i ~ ~ I ~ ~ ~ - ~ rl - ~ GEOTEGHN I G T GHNIGAL REPORT PRIOR TO BEGINNING GONSTRUGTIGN, AND GEO E T COORDINATING 1HE OBSERVATION FFE 58.7
~ ~ _ ~ ~ I 2. NO WORK SHN ~~I - ~ EMBANKMENTS WI THOU RB-I NO WORK SHALL TAKE PLACE ON THE S ARE TO BE APPROVED BY THE PE=518.0
I ~ N of ~ ~ ~ TESTI G _ ~ ~ I ~ TECHNICAL ENGINEER, ALL SOIL MATERIAL TESTING OF THE PROJECT GEO KMENT,
_ 45 ~ GEOTEGHN I cA - ~ 2 PRIOR TO INCORPORATION INTO THE EMBAN ~ ~ IGS~-'5_- GEOTEGHNIGAL ENGINEER IN pEGTION AND OBTAIN CERTIFICATE ~ 1 GES PER THE PLAN, GALL FOR S 242 - FFE =5 i 5. ~ i
~8 - ~ ~ 24~ II ~ ~ ~ INSTALL ERO ~ 5° RcP ~ ;24b 248 3 ~ INSTALL EROSION CONTROL DEV ' PE=~15, 0
~ _ _ , ~ OF GOMPLIAN ~ ~ II , - 1 _ ~ ~ , VA~I ABLE WI DTFi~~ ~ 4; GUT ALL THE OF COMPLIANCE. THE AREA OF THE BIORETENTION EA_~ TREES AND REMOVE ALL EXISTING VEGETATION FROM GUT ALL ~
FFE•515.7 ~ I ~ PRIVATE DRAT NAME BASIN. I FFE 515, 7 FFE~514, 7 I , ~ SAND - - - F{=E`519.7 ' BASIN. AT TOPSOIL, ORGANICS, POCKETS OF LOOSE ~ ,
PE~515, o Pf•5I5. o ~ FFf~51b. ~ I ~ I AND AGGfS~ EASEMENT 5, GRUB ALL TR ' 2,~ lB ~ ! P~51 A, 0 ~ PE•51 0 ~ ~ ALL TREE STUMPS, REMOVE ALL ROOT M ON BASIN. PE=59,0 ' GRUB ND WITHIN THE LIMITS OF THE BIORETENTI ~
~ p! i ~ ~ I , / GRAVEL, ANC GRAVEL, AND ANY UNSUITABLE MATERIAL. FOU OTEGT THE AREA ~ Z THE APPROPRIATE MEASURES AS NECESSARY TO PR G1RU
~ W I , ~ ~ ~ ~ ~ l b. THE (ANT THE CONTRACTOR SHALL TAKE ~I r- - FROM STREAM FLOW. 95% , ~ 8ER-
> ~ II ~ OF GONSTRUC aL _ ~ ~ II 7, PLACE EMBM OF CONSTRUCTION ANp COMPACT TO A DENSITY OF AT LEAST KMENT MATERIAL IN b TO 9 INCH LIFTS PLACE EMBAN NIGAL ENGINEER AT ,',~h FFE=Sin ~
, ~ i V I ~ / ~ ~ ~ ~ , ~ STANDARD PF I TESTING SHALL BE PREFORMED BY THE GEOTECH _ ~ PE_51n o STANDARD PROCTOR, COMPACT ON ENGINEER BASED ON THEIR _
_ I ~ ~ i t 1 i ' _ - ~ , ao LoN~,_-~._~,~ _ ~ LocnTl oNS ~ FRE(~JENGY TO BE DETERMINED BY THE GEOTEGHNIGN. ~ FE-5i9.~ LOCATIONS AND FORM A GOOD BOND WITH THE NEXT LIFT. BEN
la` JUDGEMENT I i ~ i T AND EXPERT ENGE, SGARI FY EACH LIFT TO 'E=519. o ~ ~ JUDGEMEN RB- I
' , ` I I ~ ~ - FES 80 18 I I EACH LIFT I r EACH LIFT INTO THE EXISTING SLOPE, 7E THE ~ ~ SLIGHTLY SLOPED TOWARD DOWJSTREAM TO PROMO ROD-3
3O I ~ ~ 8. THE ENBANKP I ~ z ~ _ ~ z DRAT NAGE a THE EMBANKMENT FILL SHALL BE DRAINAGE OF SURFACE WATER DURING CONSTRUCTION. R PRIOR TO l /
~ ~ > - ~ II i _____r__ , _ 9. THE SURFACE NT SHALL BE SEALED OFF WITH A SMOOTH DRUM ROLLE War-3 THE SURFA,GE OF THE ENBANKME A FORECASTED STORM. /
~ I ~ - P 1 ~ ~ ~ ( ~o l ~ ANY PROLONG T THE END OF THE WEEK OR BEFORE ~ ANY PROLONGED DELAY SUCH AS A 7 - ,
, , - , ~ SCARIFY THI ~ ~ i ~ ~ i i ~ ~ ! ~ ( ~ ~ PLAGIN6 THE NEXT LIFT, E o - , SCARIFY THE SMOOTH SURFACE BEFORE WATER OR ICE SHALL RINAG
I ~ ~ ~ ~ ~ ~ ~ KI ~ ~ z 10. ANY EMBIVV TERIAL THAT IS FROZEN OR SOFTENED BY SURFACE MEIJT ~ ANY EMBANKMENT FILL MA SE PRIOR TO THE PLACEMENT OF THE NEXT LIFT, FFE=5,fn.1
~ I I ~ ~ ~ ~ Rcp I , I I , BE REMCNED ` ~ / \ ~ ~ ~ ~ ~ I (,P ~ ANY GOMPAG' BE REMOVED CRETE WAILS AND OTHER STRUCTURES SHALL BE ,ANY COMPACTION WITHIN THREE FEET FROM THE GON IMUM LIFT \ ~ PE=51n 0
I ~ ~ 15~~, ~ I ~ I I . - I \ ~ , ~ ' PREFORMED I 3 I i ~ BI 5 TER TO AVOID DAMAGE TO THE STRUCTURE, THE MAX _ PREFORMED BY A PORTABLE GOhPAG TO 95% STANDARD PROCTOR, \ _
I ~ A ~ A HEADWP~LL I NV, ~ I I THICKNESS . r v ~ . ~ _ i ~ ~ E~.EV 503, 5 BE 4 I NGHES, AND MINIMUM GOhI'AGT I ON SHALL BE - _ THICKNESS SHALL T p IN ITEM 7,
~ ~ ~ 1 ~ GOMPAG110N _ A ~ AG110N 1ESTING FREQUENCY SHALL BE AS STA E _ . _ GOf'f' TAT ALL TIMES BY MEANS OF COFFERDAMS, SU -
- ~ ~ ~ 12. THE GONSTPo 1 1 , THE (ANSTRIJGTION SITE SHALL BE KEPT DR ~ - RES OR E{~11 PMENT THAT I S REQUIRED, Rg- I I PUMPS, TRENCHES, PIPES AND ANY OTHER MEASU RM-3
~ ~ ~ I ,1 ~ ~ PUMPS, TREI FFE 5 ~ ~ ' ~ / ~ ~ \ ~ ~ ~ 13, MOISTURE G MORE THAN I ~ ABOVE TO 3% ~ _ EA-4 l-~---_-_ EMBANKMENT FILL DURING PLACEMENT SHALL BE NO - - IOy_4 8ER-.- MpiSTURE CONTENT OF THE PING OR SPRINKLING MAY BE -
hl PE 517,b ~ , . _ ~ i - ~ ~ b PVC, WITH 3/8, PERFORATIONS ON M MOISTURE CONTENT, DEPENDING ON CONDITIONS, DR - ABOVE OPTIMU
~ ' ~ ~ ~ ~ ~ ~ \ ~ ' H 4 HOLES PER ROW ~ ABOVE OPTI ~ I I , 6 CENTERS WIT' - ~ i ~ REQUIRED D ~ ,MIN, ~ I N F I LT FABRI G SOCK. ~ REQUIRED DURING GONSTRUGTION~ _ IN A UNIFORM, CONTINUOUS FASHION,
/ I ~ ~ ' ~ ~ 14, THE EMBANK 32 ~ ~ I FFE=518,1 ~ ~ ~ ~ 1 15. INSTALL GU SHALL BE PLACED AND COMPACTED - ~ THE EMBANKMENT FILL SEWER " " ' BAGKF I LL RND COMPACTION OF TH 15 500° 3 3 22 W 194.
~ - it 244 ~ ~ ~ ~ _ - / ~ / PE 518; o \ SHALL BE C INSTALL CURB INLETS AND ASSOCIATED STORM SEWER, TING OF THE PROJECT GEOTEGHNIGAL ENGINEER - . SHALL BE CONDUCTED UNDER THE SUPERVISION AND TES
II ~ i ~ ~ TO THE CON REQUIREMENTS OUTLINED IN ITEMS 7 AND II ABOVE. VARIi TO THE COMPACTION INES PLANTING SOIL PLANT MATERIAL,
' / ~ ~ ~ ` 16; DO NOT BEC 24 SAND FILTER DRAIN L DO NOT BEGIN INSTALLATION OF ABILIZED.
I W I C~ RIP RAP ~ AND HARDWC - ' i ~ II FFE;519.7 ~ , } ~ : SCI LLWAY WITH ARDI"K)OD MULCH, UNTIL THE ENTIRE SITE IS COMPLETELY ST AND H
- ~ ~ PE• 19. a ~ ~ ~ NC?ERLI R ~ GEOT~XTILE, U ~ ~ I1. INSTALL I~ 12" TH I GK SAND BED AND 4' PERFORATED DRAIN LINES. ARE~t # 5 I, INSTALL i TH A CLAY TENT I ON
~ , ~ ~ ~ 18. INSTALL 4 f \ DY LOAM , W B I ORE PLANTING SOIL BED, PLANTING SOIL SHALL BE A SAN LNG ~ 5, INSTALL 4 THICK TE IN EXCESS OF 0,52 INCHES PER HOUR, PLANT ~ O
, - 242 ~ T of ~ , ~ ~ , ( (ANTEN ~ > / ~Q ~ ~ ~ ~ ~ I ~ HALL i NF I LTRAT I ON RA E: I 3 5 % AND AN SGAL CONTENT OF LESS THAN 2 % AND SOLUBLE SALTS I NG PLAN I , 5 ~ To o , PLANT
~ % ~ \ ~ ~ ~ ~ SOIL S ~ % / ~ FFE=514,1 ~ ~ , A PH RANGE OF 5.5 TO 6, 5, ORGANIC MATTER FROM SOIL SHALL BE IN T D PRIOR TO PLACEMENT TO CONFIRM
y ~ ~ ~ ` SHALL NOT ~y ~ / ~ ~ ~ ,PE•5I9, 0 , ~ ~ PROPERTI E`. GEED 500 PPM, PLANTING SOIL SHALL BE TES E SHALL NOT EX ERT I ES. ~
~ ~ ~ ~ I , ~ i ~~<a ~ ~ i ~ ~ POND ~ ~ ~ ~ ~ 19. PLACE PLAT ND GCMPAGT LIGHTLY. a. PLACE PLANTING SOIL IN 12 INCH LIFTS A t~;
~~a~f ~ ~ ~ ~ i ~ ~t ~ s F ~ ~ ASEMENT ~ ~ ~ INSTALL Pi INSTALL PLANT MATERIAL. PER PLAN, H
~y d\ ~ ~ I ~ ~ v ~ ~ ~ ~ ~ `J ~ / 21, INSTALL A y/ , ~ I H THICK LATER OF 12 MONTH OLD SHREDDED HARaJ00D MULL , .10 AG) I , I NSTALL A 2 I NC N AR A . . . . 4b00 5•F. (0 BIORETENTIO - STEMS/ACRE)
~ i > > ~ TING DENSITY - 4`~ ~ PLAN _ ^ 44
j; - ~ i ~ 4 ~ , ~ l~r ~ ~ ~ ~ NUMBER OF PLANTINGS
' SHRUB /TREE RATIO = 3:1
NUMBER OF TREES II
~l(1 N I_..__ N - _ N NUMBER OF SHRllBS . . ° 33
g I _ - - _ - _ _ 15'
_ - _ _ a i
I ~ EXISTIN TOP OF EMBAN - ntlon Area ~ of ErsANKMENr 510.50 nt List $iorete T Ical Pia
- cRnoE , yP
_ ~ _ - , - _ ~ LINE SPILLWAY 2,~' 6aMPM' 7N F'Im (W' WNV D16 , - T WITH RIP RAP I ~ ~ e.,s nea oar
_ I lax 9~'"a k' le-r~• ew vlm Gadd,+rMJ 6oU i,~l I i- 3 -509.75 165 a rowr~ ww - ~ ~s wMp~r s.. Fkn ~'+'_n''~_,_e~e~---
- I ~ d Mara ++Kieo~• _ _ 3 ~ 1 erc++- .tarlera 7+-96 se.1~m ~ Gcntc+tir(9 c~ou
~ I _ - - _ - ROD ~ ~ - -
_ . a~oa~r gory wa ?~w Ac.r n,a,~+~ ~atowr sary_' ~.~•-cal s.. Pla+ ca~ r+A~ e,e RM 4 kv~ la-1d' SM PIOi GOntGMMr1~J 6pV
. _ _ - - N, T, S, ~ e ,hb ~ cuay~ah euarynow alaan Pkn conwrw'fs eoo
T Nr+b w-trerny lax wrtwiota le-s~' Ter se. Plm ca~tainxC~ 500
- - _ r _ _ - _ - _ - ~ Nrub DabN~r Dub~'b dtytl_ ID-24' - EER b O~OIAm . py IZ MoNn1 q.D ~1eoDeD MLtM OvlR l1rtM1e Mlrttle
i ` FLOWS IN EXCESS _ -i3ES+bN- E~9 - ~
- _ _
BYPASSED THROUGH
- _
- RIP APRON P S#80 WIT 2K ~ FOR I,B~STH ~ MIN,
_ _LEVEL _ - __t .
i SEE TAI U ~ _ -1O' _ _ _ _
- - MIN;
I ~ - _ - _ _
_ _ _ _ _ - - TOP OF BERhk 5 10; 50 - ~ ~ -

j _ _ _ - _ - _ - _
_ . _ _ _ ~ I _ _ _ _ - _ _ - ~ _ 1NS 9TQk T~ CLA95'9' RIP-RFP; 9EE PLNIS FEET ~ SI ZE ~x 2 @ 2 X 2 PhD MF110VIM.U ; , , ; RISER SIZE
2' -4' HARDWOOD LGH- - - ~ I I _ _ ~ - . _ _ "1D ~ ~ RIP-w~ RtrnlNlrw ~ 15 I NGH an I~ ~ ~5 REL DIAMETER
i 1 - ~ _ ate. BAR
~ _ _ 4; ~ 11~ RLP 508.50 ~ OF PLANTING SOIL ELEVATION AT TOP
- - i ~ PL T I NG - - _ I _ _ _ _ _ _ _ _ - - - 503, 50 TI AREA T I ON OF BOTTOM OF 501 L
~ _ --_-f_ - _ _.50t -BEG- - - - ~ - - - ~ BIORET6I on ELEVA 509.25
- _ - - ~ •ramoFF FROM RIP wu' I I~OFILTBRFABRIG OF TOP OF RISER ELEVATION
- - - ~ ~N ~ TO T 503. ?3 ~ 504, 13 olsclu~E As sH~T FLau 4 0~ ~r ~T e ~ LEVAT I ON AT RISER ,~~,T,a,,,,,~,5, FILTERBLANCFT i NVERT E To s 503.50
ATION AT HEADWALL/FES INVERT ELEV
_ _ _ - SAND- M • 15 FEET
i - _ . _ _ _ _ _ _ - - _ _ _ I -a RGENCY SPILLWAY WIDTH EME
I 6 PERF TED 5q F 15 45 LF 15' 509. ~5 Y SPILLWAY ELEVATION EMERGENC
I N I N I RAF I _ _ 1/~~----_ _ - RGP 5O~ - RGP @ 0, 50~ _ L=5' >=1 L ~ 5 10.50 T OF BERM ELEVATION OP
_
_ _ _ -I_ __~~5
'i ST E = GL 5 A I
_ ~ - - - - ; _ _ ---1- - - -
1°n _ - _ - _ v~ - 9..5Q__~ _5-- _ i _ _ - - _ . a
- - -
_ UTILITY INSTALLATIONS ANO OTHER PUBLIC FACILITIET ,
INCLUDING SIDEWALKS AND HANDICAP RAMPS ARE 0 BE CONSTRUCTED ON ALL STREETS AS SPECIFIED BY
_ _ _ _ _a. _ - - - _ F----__-- CITY CODE. THESE FACILITIES HAVE BEEN APPROVED BY THE CITY OF RALEIGH AND SHALL BE SO INSTALLED
_ _ I i _ - I - UNLESS A CHANGE IS AUTHORIZED BY WRITTEN APPROV D ' 1111~~~~~~~~',
~ - W PUBLIC SANITARY SEWER EASEMENTS ARE TO BE RECORDE BAR Ij~~/ TO FlNAL ACCEPTANCE, CaRp PRIOR R ; '`;;,,,iiu,,,,(~ ~ / 4
_ - ~ _ . - _ _ - m SIGNATU E NOSC ? Q ~i
_ I_ - J - _ F, - ~ J j ENGINEERING : W~ 9~
~ ~ W OC ~ W ~ _ ~ _F_.. H < X I .W L x' -N 1158 -
_ _ _ i B Q = Z _ _ _ _ _ Pueuc uTILmES; ~ ~ sG~
_ _ u - --_LU . _ _ . _ - _ _ - ~ _ - _ i- _ a 3 ?a D MATERIALS TO BE I N TRAFFIC ENGINEER: 'A ~ ~,~y I N~~ ~~?Q
ALL CONSTRUCT I ON AN ~ ~ , 0 P TY OF RALEIGH, ~i~'~q ~ ~ STRI GT ACCORDANCE WITH THE GI ~ P S F• C
- - _ - _ 5 _ _ _ - - - - _ z H J ~ i Z Z ~ ~ hC~ 30 ~I _ _ _ _ _ i iW - . ~ ~ u ( L_ ~o R: q Y ME y,~ a~~ 3Q CINEE ~ 1 1 3o i 5 o NGDOT, AND NGDENR STANDARDS CONSERVATION EN nnn NNMIII~
L ~nrii[[i/'ATINIC a P1FTA11 S
i ~ Nor I ~ L Jrr-L, l,n t -a v 6ne R

I 15 EVISION #1 GITY 5TAFF REVIEW 03-25-04 PRIEST CRAVEN
HORIZONTAL I' .3d ¦ 1 c~EVE~_u~ ^~Er~? GALE: I I'=3' ~NtA%GEMENT REVISION #2 CITY STAFF REVIEW 04-20 04 ASSOCIATES~INC- or. REVISION #3 CITY 5TAFF REVIEW 05-19°~ E DESIGNERS / SURVEYORS l ENGINEERS
T E R U N 5 VERT CAL A.
DATE: FEBRUARY 20, 2004 LAND USE CONSULTANTS PLANNERS /LANDSCAP 3803 -
REA # 5 B Computer Drive, 5wte 104 Raleigh, N.C. 27609. Phone 919 l 781-0300. Fax 919 / 782-1288. Email PriestCraven TRUGTION PRELIMINARY NOT-RELEASED FOR DONS
PROJECT: 2003-004.
RALEIGH, NORTH CAROLINA GENTEX HOMES
A P~W.Lt, f- iV' r~Cir ~lXJ6~L0N~~&Ui,1~01'_PHnSF ~ ~'-iJ)riIITAL CON 2003~a 'S _ JyS by 10 1~~a - 3 ~i c~ BEN

TWO YEAR DES i GN STORM -INLET LOGAT I ONS AND GUTTER SPREAD DATE MARLM 16 2004 STCA2M DRAINAGE CnLCULATICAlS - HARRINGTCN POINT SUBDIVISIgJ FILE NME : NARPTSTDR52,123 5 FT FOR REPAIR CF SILT MIN-'
TWO YEAR DESIGN STORhF INLET LOCATIONS NJD GUTTER SPREAD 5 na e' wuc. FENCE Fnl WAS. USE 1 5 Fl VARIABLE AS DI ItECTFD Bf iNE ENGI MA?t ND. 57 WSHED STONE. -
DISCHARGES ARF &15ED ON RATIONAL FOfd1JLA PEiHODOLOiY, HEAC4VITER CALCULATIONS hRE BASED ON THE ORIFICE E(UATICN CUTTER SPREAD IS BASED ONMANNINCf~ ECd1ATI0N. INLET GAP/~ITY vMIA$E ns DlrtECiED er TnE ENGINEER IS TAKEN FROM THE EAJATION OUTLINED CN PAGE Ilb OF 'MODERN SEVlER GF516N'. PIPE CAPACITY IS BASED ON MANN1NCfi EQUATION. FOR ANCFiCR INEN SILT FENCE 15 PROTECTING IB00 GU FT/ACRE 5 F1
STRUCTURE BYPASS AREA TOTAL 4FIGFITED RAINFN-L RUNOFF R2CM TOTN- INLET STREET OJTTER N.LONnBLE CHECK INLET TO TO NEXT CATCH BASIN. NOTES: ~ ° ~ MAX tia
NUh~ER INLET IhPER LANDSCP UNDIST AREA 'C' INTENSITY PREVIg15 TO TYPE SLOPE SPREAD GUTTER LMACIiY PIPE INLET nIN I]-u1 5A nIN. IY-1126A. USE FOR DW1NFbE AREAS n' nIN, O ~ - ~O INTERrEDIArE NOT EXCEEDING5lFIVE) i~CRES.
0.95 0.35 O.2 INLET It~ET I=SLCT'E GP~AD INreareDlntE MIN. 10 6A. NIf€5 ACRES IN/MR GFS LFS CFS 2 ~ SAfi % FT FT LFS uNE uiRES MIN. 10 GA. WIRES uNE uIR>•s 2. EARTH BERM SHALL BE STABILIZED N/ SEEDING ~",FILTFR
SI iFE CEF IC I TILL D i0 sl r F Ic ACCORDING TO TRIANGI-E SPEUFICATIAJS. GRUSS SEGTI ON FABRIC 1 rAll rD ca+
92 OFFSITE 0.14 0.01 0.00 O 15 0.91 5.76 0, 79 0.00 0, 79 CI I 2.0 5,90 16.3 OK 1.30 0.79 0.00 90 0.~ O, CO 0.00 0.00 0.00 5.76 0.00 0.00 0.00 FES I I.0 NA 0.00 0.00 0.00 ewe 6RrnE 3. USE CLEAN CLPPACTOR FILL MATERIAL FOR EARTH BERM. fNERFILL b'
40 18 0.25 0.10 0,00 0.35 0.78 5,76 1.57 000 1.57 CI I 5,0 6.44 6.5 OK 1.48 1.48 O.OB - - - - - GESIGN ' FoR sETnEr~Nr - SETTLED 1~
38 20 0.08 0.01 0.00 0.04 0.88 5.16 0.46 0.00 0.46 CI I 5,0 4.06 6.5 OK 0.74 0.46 O. CD i- STEEL POST TOP ~ I MIN -~~~II rat?, NIKE F,valL r r~Eea+RD _ _{j~-~I ~
3b 20 0.54 0.15 0,00 0.69 0.82 5,76 3.26 0.00 3.26 CI 2 5,0 6.53 PRK6 LOT OK 4.48 3.26 0.00 w~Nlx6 sl6N I_I NCI II. i I,II I~ I I- SILT FENCE 6EO1B(11 LE FA9lIL - = o ~
34 28 0.13 0.04 0,00 0.11 0.81 5.76 0.79 0.00 0.79 CI 2 I.0 5.20 PRKG LOT OK 3.18 0.79 0.00 , ob" _ I I I ~ n ° II o IO Fi MIN _ s - _ 1.5 FT I~ o - 2151 CE
98 OFFS' TE 0.26 0.21 0.00 0.47 0.68 5.76 1.85 0. ~ 1.85 CI I 1.3 B. 81 16.3 OK 2.38 I , 85 0.00 FRONT VIEW - ° ~ o ~ _ FRONT VIEW 1 ~I D ~,D ~c oo - ~ ~ = F1 LL SLOPE _ p~ oo~ o jT SLOPE MAX 5 FT ,I ~o~a og -r
96 OFFSI IE 0. ~ 0.20 0.00 0, 20 0, 35 5, 76 0, 40 0. ~ 0.40 CI I 2.2 4.51 GI NA 0.81 0.40 0.00 FILL °"~p~~°~~ -1~ x ~ g ooCa~.o,~a~~0~0 ,D'
32 26 0.09 0.32 0.00 0.41 0.48 5.76 I. 14 000 I l 4 61 2 2.0 5.23 61 NA 3.21 I. 14 0. CO srE[t r~sr ~ ~ FI TE oV'""B~ L 1 SIDE SLOPE L 'I ~~~o r MAX NATURAL
30 24 0.20 0.09 0.00 0.29 0 lb 5, 7b 128 0.00 128 CI I 3.7 b. 30 b.5 OK 1.44 128 0. CO ua>EN uIRE FrEalc NOTE: slu PENCE ~oran~E FASRIc T FABRIC .I o = _ GROJNO
28 22 0.15 0, Ob 0.00 0.21 0.78 5.76 0.94 0.00 0.94 CI I 3.7 5.63 6.5 OK 1.21 0.94 0.00 -USE SILT FENCF a+Lr WHEN CRnINn6E AREA = b b' HI N. CWT ~ TREE PROTECTION A`~EA b' ...3 Fi OV9t SKI Rf ~ T DJ NOT ENTER MIN
26 I b 0.09 0.43 0.00 0.52 0.45 5.76 1.36 0.00 1.36 GI 2 2.0 5.59 GI NA 3, 54 1.36 0.00 DOES NOT ERCEED u4 ncRE rHD NEvER IN ° ~ FI~~ Fat REPnIR of 51Lr Exrc~D rnRE 6' nIN. INrD rl[Nrn AND NlGK1R SKIRT AS
24 18 0. 15 0.13 0.00 0.28 0.67 5.76 I , ~ 0.00 1.08 C I I 3.5 5 99 b, 5 OK 1.33 1.08 0.00 ~5 ~ cONC~r~nrED FLOW m ~ ~ FENCE PnILURES, usE - T D UPHILL = Nu. 57 WnSHED STONE. DI PELTED BY Bl61fIffR ~ WARNING SIGN DETAIL MAINTENANCE
22 20 0. 19 0.07 0.00 0, 26 0.79 5.76 1, 18 0.00 I. 18 CI I 3.5 6. 19 6.5 OK 1.40 1.18 0.00 END ~ SILT FENCE NEEDS OBE NR(E ~ FcR nNCr+oR WiEN SILT "m 6RME FENCE IS PP,pTECTING 51 DE VI Eb 51 DE VIEW NorES~ NARNIx6 slew rD BE MADE ~ awTeE. IfARER'FCYA` nxrERIAL. LEfiBlS 70 BE T H16H NINIMd4 QENYY LEOI ALE AND SPALC-0 AS CEIALLE0. INSPECT THfORNtY BEDI167T iRMS IFTER EI,Ce TERM BFI ~ C~CSI6N [EifH ~ SED~~T ~DI~rTIMATT05 TIi~IED TIN
20 Sag 0.21 0.20 0.00 0.41 0.66 5.76 1.55 0 PO 1.55 CI 2 1.5 5.80 6.5 OK 4.14 1.55 0,00 CATCH BASIN. 18 5aq 0. 4 f 0.27 0, 00 O. bB 0.71 5.76 2. 79 O. CB 2. B7 C I 2 1.5 b. 45 b. 5 OK 5.86 2.87 0.00 a o+Fk %IR~ SIGNS 511r1LL EF RACED AT 50 f4IXI MAN INfERV/l5. OIN[HlSIRA Nd:TI THE SEDI1fNT HA5 ACCUMAAT® 0 H.ACE A 516N AT EAGI BA OF LINEAR TREE PRbTECiIQ'1 AND W CN CABER /HEREAFTER h CE516HATED DISPO6AI ARFn AND REPLACE iXE CCNTAHI NATEO PART CF THE GRAVa FALI N6.
f~ Ib I4 0, OR 0.47 0, 00 0, 56 0.45 5.76 1.44 0, 00 1.44 61 2 2.0 5.71 GI NA 3, bb 1.44 0.00 E%tEND wry b' nIN. INro TRdKM f~ FCR 11fE PR01EC11LN hREAS LE95 iWW 1Ctl IN PERIMETER PR?IICE NJ LESS THAN G'~ SIGN PER PRO1ELf1AV AREA CMKK THE STRICR6E FRI DNMC# F%M ERO5I LN LRTPIPIMEDIATELI ~FI LLLNIY~SErTlE713iT OF 1HETEHBMIIKTfNf iTO SLI~GH~YIb&NE DESI (iJ
REVI I 5 »w kX1K,R SKIRT AS -USE 511 5 ~ DllstrEO er ENGIH®! i 4 10 0.04 0. 18 0. CO 0.22 0, 46 5.76 0.58 0, 00 0, 58 61 2 2.0 4.Ob 61 NA 2.20 0.58 0, 00 DATE DESCRIPTION , , „ Ni -USE 51L( FENCE ONLY WHEN CRnI NAGS AREA ATTAIN 51&.5 SECURELY TO FHKf ROSiS NTD FAARIL. REVI SI CNS CF I, 5 Ft Baal TrE LLN P01 Ni Cf iH; Et&NKtfN . LtiES NOT EXCEED 1 /A nLRE AND NEVER IN M11xrnIN i;@~ PFt7TECrICN !}TOE ifEKU6N:Vi NRhTICN O` PI37JECi. DATE DESCRIPTION krr RIP RAP D15PLKED FRLM 1NE SPiLLIUt nlSr eE REPLIf.~ In+EDlArar.
AREAS 12 10 0.18 0.41 0.00 0.59 0.53 5.76 1.81 0, 00 1.81 61 2 2.0 b. 22 GI NA 4. I l I . BI 0.00 Is-s-ar sly vIEN ul~ r~Na SIDE VIEW AREAS OF CONCENTRATED FLOW KD111CNAL SI6N5 nAr d REAIIRED Br LI i1 OF RALE/Cfl INS°ECilOXS DEPARrIfNi BnSED CN /LrUAL FIELD CGNDI rICNS. STABILIZE llf B~HNp4:NT END N! DI STlITd3ED AREnS AB(NE THE SFDIHErTT POOL AND DC:N5IRENH FADH THE TRAP IM£OIAIELY AFTER RAGE A SIGN Ai EYAf END Cf LINEAR 1REE PRD1EGi1GN Nr0 50 CN CENTER ihLiffAFTER. LDNSTRULTIOI NIiH SEEDI N6.
-END ~ 10 8 0.10 0.39 000 0.49 0,47 5.76 1.33 0.00 1.33 GI 2 2.0 5.55 61 NA 3.51 1.33 0.00 -END OF SILT FENCE NET:05 TO EE TURNED UPHILL.
9 8 0.25 0.09 0.00 0.33 0.80 5.76 1, 53 O. CO 1.53 C I I 2, 2 7.44 1.8 OK 1.84 1.53 0.00 OUTLET 3A D R I P RAP 8A5 I N/ A GRAVEL
UO 0.97 U I 22 6.26 7.B OK 1,42 .97 0o STANDARD TEMPORPtRY SILT FENCE I 5' l b 0.14 0.10 0.00 0.24 0,70 5,76 0.97 0 0 0 RY ILT TREE PROTECTION FENCE STANDARD TEMPORA S /
8 Of f s ~ t e 0.2 I 0.09 0.00 0.30 0.77 5.76 1.33 0.00 1.33 C i I 2.0 7. 19 7 ~ 8 OK 1.75 1.33 0.00 BAFRE I tN. I ~V ~
6 Of{site 0,16 0,06 0.00 0.22 0.79 5.76 I.~ 0.00 1.00 Cl I 2.0 6.45 7.8 OK 1.49 I.~ 0.00 EAR1H [HrN f
4 2 0.11 O, IA 0.00 0.25 0.61 5.76 0.88 0.00 0.88 61 2 2.0 4.75 GI NA 2.78 0.88 0.00 S' h1K
2 0,~ 0.00 0.00 0.~ 0.00 5.76 0.00 0,00 0.00 FES NA ~i,~
70 PH 2 0 II 0.04 0.00 0.15 0.79 5.76 0.68 0.00 0.68 CI I 1.9 5. b5 6.5 OK 1.22 O bB 0.00 STANDARD FETAL POSTS 2'-0' IN GRQIND /
b8 bb 0,21 0.14 0.00 0.35 0.71 5.76 1.43 0.00 1.43 CI I 1.9 6.43 6.5 OK 1.85 1.43 0.00
66 b4 0.14 0.19 0.00 0.33 0.60 5.76 1.15 0.00 I. IS CI 2 I 0 5.97 10,3 OK 3.92 1,15 0.00 GALVINIZED HARDWARD WIRE
b4 52 0, 36 0.13 0.00 0, 49 0.79 5.76 2.23 0.00 2.23 C I 2 I.0 1, bb 10.3 OK 5.69 2. 23 0, 00 I N G S G H E DU ~ E SEED EXTENDS TO TCP GF Box
54 52 0.00 0.05 0.00 0, 05 0.35 5, 76 0, 10 0.00 0. 10 GI 2 2.0 2. I I Gl NA 0, B2 0. I O 0.00 a~~~n11N11//// E%TRA POST IN FACQE
52 50 0. I I 0. 19 0. ~ 0.30 0.51 5.76 0.98 0.00 0.98 61 2 2, 0 4.95 61 NA 2.96 0.48 0.00 ~ ~A ~ FOR SHOULDERS, SIDE D I TGHES, SLOPES (MAX 3• I ) -MOB NI RE hTTAGEO OF p~ENIN6 i" f-0 POSTS NI fH LENGTHS SED11fNT Plr
50 0. ~ o. 00 000 0. ~ o. oa 5.76 0. o0 0.00 0. oo FES NA `p~ ti TYPE PLANTING RATE ~ ~ DATES ~mpe ~ MORI ZCNTAI AEfN. POST AN RED SECUr>ELf TO VERTI CAI
102 30 O. i2 0.03 0.00 0.15 0.83 5,76 0.72 0.~ 0.72 GI 2 1.5 4.62 GI NA 2. bb 0.12 0.00 • AU6 15 - NOV I TALL FESCUE 300 LAS/ACRE - e° c ~ _ PDSrS
100 81 0.28 0,~ 0.00 0.36 0.82 5,76 1,69 0.00 1.69 61 2 1.5 b, 37 GI NA 4.32 1.69 0.00 9 5,76 1,08 0,00 1.08 Cl I I.0 7.57 10 3 OK 1.89 I OB 0.00 ~ NOV i - MAR I TALL FESCUE t ABRUZZI RYE 300 LBS/ACRE ~ BAFFLE INSTALLATION -STEP I 8 (Uffi I I RIP RAP
8,9 Sb 0, 19 0.02 0.00 0.21 0, 8 i ~ 7 85 0.31 0.17 0.00 0.48 0.74 5.76 2.04 0.00 2,04 CI I I.0 9.60 10.3 OK 2.71 2.04 0.00 ~ ~ ~ MAR I -APR 15 TALL FESCUE 300 LBS/ACRE 000 0
89 83 0,18 0.93 0.00 I.II 0.45 5.76 2.86 0,00 2.86 61 2 1.5 7.79 GI Nh 5.84 2.86 O.QO ~j/~ Q APR 15 -JUN 30 HULLED COhk10N BERhUDAGRASS 25 LBS/ACRE - b ~ ~ ~ FraRlc FaoED Qq0 ~ FA&IC LUi NID F0.~D OrER HORI ZLNtAL
86 8 O. 13 0.01 0.00 0,14 0,91 5.76 0.73 0.00 0.13 CI I 2.0 5.74 10.3 OK 1.25 0.73 0.00 125 LBS/ACRE 1 ThLL FESLUEI ~ ~ I. al ~ 5~ ~PH1CE POIT AT LEAST IB' INTO pvHt 1HE HUtIZWTl1 PO51 _ 0~ i FENCE PO51
TALL FESCUE RND BROWNTOP V V WCD POSTS ARE NOT AL(A'TABE Ngtl ZONTk POST ~v Nla P GT I VE VIEW
7 1.81 0 CO I.BI CI I 2.0 B.Ob 10,3 OK 2.08 I BI 0,00 JUL I -AU6 15 MILLET OR SORGHUM-SUDAN 35 L85/ACRE lBR04NTOP MILLET) B~ 84 0.29 0.11 000 0.40 0. 19 5. 6 30 LBS/ACRE ISORbHU SUD HYBRIDS+++ HYBRIDSI ~ PERS E T-T o 3. 115E 5I/A.ES I' MART TO ATTACH FABRIC FENCE AND FABRIC p ~ i0'I1Lti HIRE 91RIED IN TPENCN
84 83 0.11 0.17 0,00 O.ZB 0.59 5,76 0.94 0.00 0.94 LI I 2.0 6.32 1.8 OK 1.44 0.94 0.00 `~-"~~,O~Q' Q o - 1. BAFFiE SPK.ID /b PER MPAJ'i+ED RNI. TO' OF B'fTtE SHOULD BE h'
B3 ~ (5 ~ re o. I B o. 04 0, co o. 22 0 B4 5. lb I , 07 (100 l . 07 c1 I 1.5 7. a2 7, e oK 1.69 1.07 0. oo FOR SHOULDERS, SIDE DI TGHES, SLOPES SLOPES (3: I TO 2 I ) 82 01 f s i t e 0, 23 0, 07 0, 00 0.30 0.81 5.76 1.40 (1.00 1.40 C I I I.5 7. 73 7.8 OK 1.95 I , 40 0, 00 SERI CEh LESPEDEZA I SCARI F I EDI 50 LBS/ ACRE i-;T--~ irIE~SFILLUnrTHE AOrTOM OF
81 80 0. ~ 0.06 0, 00 0.06 0, 35 5, 76 0. 12 0.00 0. 12 61 2 0.7 2. 75 GI NA 1.22 0.12 0, 00 MAR I - JUN I MID USE THE Fq-LGWING (SERI CEA LESPEDEZA) cOMBlNhrlcNS: BOT10N DF BAFFLE IN q.{KFILLED AND i1R11LH AND 7RFTICN GRPK.tED p 57 WASHED STONE PLACED TO A FuLED ulm SOIL NOD
BO 0.~ 0.00 0.00 0.~ 0.00 5.76 0.00 i? CO 0.00 MAR I -APR 15 ADD TALL FESCUE 120 LBS/ACRE HE I GN7 OF I Z' - I B' MIN. ABOVE u~vrcreo T~ ~ ~ REVISIONS
STORM DRAINIY6E UILUILl1TION$ - IWZRINFITA') POINT $U~IVISION MAR I -JUN 30 OR ADD WEEPING LOVE GRASS IO LBS/ACRE REV15Il REVlsla~s SECTION hT OPENING GATE DESCRIPTION
TEN YEAR DESIGN STORM DATE DfSL DATE DESCRIPTION BAFFLE INSTALLATION -STEP 2
DISCHARGES nRE BASED Qd RATIONAL FORM,1Lh METHOD0.WY. PIPE U,PALITr IS BASED ON MANNINCf ECi1Ai1GN. MAR I -JUN 30 OR ADD JULLED COMt1CN 8ER11DAGRA55 25 LBS/ACRE
HEnpWATER CALCULATIONS ARE BASED ON THE ORIFICE EGUATICN. 120 LBS/ACRE (TALL FESCUE) currER SPREAD Is BRED GNMANNINCf~ EauATION. TALL FESCUE AND BRORNTOP 35 L85/hCRE i~BROWDlTOP MULLET) IN 38 GRAVEL ~ RIP RAP FILTER BAS
INLET CAPACITY IS rhKEN FRCMi THE Ela,1A11LN OUTLINED CN PPGE IIb OF "MODERN SEDER DESIGN. JUN I -SEPT I MULLET OR SORGHUM-SUDAN 30 L85/ACRE (SORGHUM-SUDAN HY8RID5+~• HYBRIDS) ATGH BASIN YARD INLET PROTECTION 14l STANDARD G /
STRUCTURE AREA TOTAL WEIC+ITED RAINFALL RUNOFF FRGt4 TOTAL INLET STREET INLET TO TO NExT KIaE INVERT INVERT PIPE FROM FROM TOTAL DI A. MI NIMIM ACTUAL Ld HW (R ~ A NUM'>ER IMPER LANDSCP UNDIST AREA 'C" INTENSITY PREVIOUS TO TYPE SLGPECAPACITY PIPE INLET NUMEER O1T IN LENGTH INLET PREVIOUS i0 SLOPE SLOPE 70 LBS/A, E; I SERIECE
0 95 0.35 0.2 INLET INLET I=SLOPE PIPE PIPE SEPT I - MAR I SERICEA LESPECEZA IUNHULLED- LESPEDEZAI:. 120 LBS/ACRE BYPASS ACRES IN/HR CFS CFS LFS 2 = SAG S CFS fT FT FT CF5 LFS CFS IN % S FT UNSCARIFIED) AND TALL FESCUE 1 TALL FESCUE) i
INLET ' MAXIMUM NOTES. 8 5O h11 N
NOV I - MAR I AND ABRUZZI RTE 25 LBS/ACRE 92 OFF51 TE 0. 14 0.01 0.00 0. 15 0.91 7.22 0.99 0.00 0.99 G I 2.0 1.48 0.99 0.00 I. R1T SILT FENCE OR TREE PROTECTION FENCE IR - ~ U; k. A! ~M .-----_-..---Fa{ I BUT SUFFIUBIT 101~EEP TO ENSURE CONSTRI?LTICN ENTRANCE IS US®. 4
92 - 91 516.50 S~b.(K' 3C 0p 0.99 O.~ 0.99 15 0.50 I.b1S 0,65 0.65 91 0.00 0 OO 0.00 0.00 0.00 1,22 0 ~ 0.00 0.~ FE5 I 1.0 0.00 0.00 0.00 CONSULT EFS ENVIRONMENTAL ENGINEER FOR ADDITIONAL INFORMATION CONCERNING OTNER SEDIMENT ON SITE ~ - - i ' Z. IF CONSTRUCTION ON THE SITES ARE SUCH THAT
ALTERNATIVES FOR VEGETATION OF DENUDED AREAS. THE ABOVE vEo~E1ATION RATES ARE THOSE WiICH DO WELL UNDER LOCAL CONDITIONS: OTHER SEEDING RATE COMBINATIONS THE tUD IS NOT REMWED BY THE VEHICLE TRAVEL- 45~ , ING OJER THE STONE. THEN THE TIRES OF THE
Z •3' STRNF TC EE USED 15' OR WIDTH Gf VEHICLES N15T EE WASHED BEFORE ENTERING THE - exlsrlN6 I SURGE suTNF aR RnILRDw PRCPOSeD srReer, i~~lc ROAD ' - 12" TYP,
40 I B 0.25 0. 10 0.00 0.35 0, 78 1, 22 1.97 0. CO 1.91 U I 5.0 1.69 1.69 0.28 ARE POSSI BIE. 40 - 36 50<1 19 508.90 58.04 1.64 0.00 1.69 15 0, 50 0.5GS 0.65 0.69 E>< ROaDNNY &V.LA5T) YMICNEVER 19 8 C>REATER 3. IF A PR01ELi (ANTINUES TO RILL MJD ANC DEBRIS
38 20 0, 08 O.OI 0, 00 0, 09 0, 8B 1.22 0.57 0. ~ 0.57 CI I 5. D o. B4 0.51 O.00 ~ TEMPORARY: RESEED ACCORDING TO OP1 I hUM SEASON FOR DE51 RED PERMANENT Ra 38 - 36 512.16 510.59 81.12 0.51 0.00 0.57 15 0, 50 1.94% 0.65 0.63 VE6ETAT I ON. DO NOT ALLOW TEMPORARY COVER TO GROW OVER 12~ I N HE 16HT ON TD THE PIIELiL ROAD. THE GOVERNING WTHORIiT I
36 20 0.54 0.15 0 ao 0.69 0. a2 1.22 4 oB o, ~ ~ LI 2 5.0 5.09 4. oB 0. oo BEFORE MOWING, OTHERWISE FESCUE MAY BE SHADED OUT. 36 - 20 508.80 507.28 98.35 A.OB 2,26 6.34 15 0.96 1.55% 0.65 I.bl WILL CLEAN THE AREA AND INVOICE THE FINANCIALLY RESPON51&.E PERSOJ INDICATED ON 1HE FINNJCIAL
34 28 0.13 0.04 0.00 017 0.81 7.22 0.99 0. W 0 99 U 2 I.0 3.61 0.99 0,00 34 - 28 517,82 512.35 81.21 0.99 0.00 0.99 15 0.50 6.745 O. b5 0.65 RESPWS181LItt FORM,
98 OFF51 TE 0,16 0.21 0.00 0.47 0.68 1,12 2.31 0. ~ 2.31 CI I 1.3 2.10 2.31 0, CO 98 - 96 514.47 514.72 25.43 2.31 0.00 2.31 15 0.50 0.9BS 0.65 0.16 60'
46 OFF5ITE 0.07 0,20 0.00 0.20 0.35 1.22 0.51 0.00 0.51 LI I 2.2 0.99 0.51 0,00 9b - 32 514.62 514.00 52, 03 0.51 2.31 2.82 15 0.50 I. 19S 0, 65 0.82 P AN 20" TYP. L
32 26 0.09 0.32 0.00 0.41 0.48 7.22 1.49 0.~ 1.43 61 2 2.0 3.64 1.43 0.00 32 - 30 513.90 512.18 124.55 I , 43 7. B2 4.25 15 0.50 0.9~ 0.65 1.07
3U 14 0.20 0.09 0. CC1 0.29 0. lb 1.22 1.60 0. ~ I , 60 CI I 3.7 I b3 1.60 0.00 30 - 28 512.68 512.35 2b.Ct2 1.60 4.25 5.84 15 0.81 1.212 0,65 1.46
28 22 0.15 O. D6 0.00 0.21 0 7B 7.22 I IB 0.00 I IB Ll I 3 7 1,98 I.IB 0.00 2B - 22 512.25 508.70 IO1,60 1,18 6.84 8.02 15 1.53 3.30% 0.65 2.20 N I5' MIN, NEN CONSTRUCTION
2b !6 0.09 0.43 0.00 0.52 0.45 1.12 1.70 0,~ 1.10 GI 2 2 0 4.02 1.10 0.00 26 - 24 509.86 509.96 121,90 170 0. ~ 1.70 15 O.50 0.105 0, 65 O.1D 35' HI exlsnNO cur ~ ALTERNATE ORANGE E WNI TE STRi PES
2A IB 0.15 0.13 0.00 0.28 0.67 7.22 1.36 0.~ 1.36 LI i 3 5 1.51 1.36 0.00 24 - 22 5~ 86 508.70 26. ~ 1.36 1.10 3, Ob 15 0.50 0.62% 0.65 0.85
22 20 0.19 O.OI 0.00 0.26 0.19 1, 22 1.48 0. ~ 1.48 CI I 3.5 1.59 1.48 0.00 22 - 20 5x3.45 506.53 121, 80 1.48 I I.OB 12.56 18 1.42 15oK 0, 65 2.61 IT rnN. 4" MIN. 6' MIN. \ \ Mf N. 2' x ~
20 Su 0.21 0.20 0.00 0.41 0 bb 1.22 1.95 0 ~ 1.95 CI 2 1.5 4.10 1.95 0.00 9 20 - IB so6. ~ 505. n 26. o0 1. ~ IB 90 20. B5 24 0 B4 1. ca a 65 2.62 I • CHISEL COMPACTED AREAS RND SPREAD TOPS01 L THREE
18 Sag 0.41 0.27 O, IX) 0.68 0.71 1.22 3.52 0.28 3.80 CI 2 1.5 6.86 3.80 0.00 I 18 - 16 59'i.bl 503.83 131.38 3.80 20.85 24.65 24 I. IB 1.405 0-65 3.17 INCHES DEEP OVER ADVERSE S0 ~ CONDITIONS, ~ (TREATED -NOTES- ~i~~/~, i~; i.1i,
Ib la 0.09 0.47 C.W 056 0.45 1.22 1.81 0.~ 1,81 61 2 2.0 4.16 I~BI 0.00 Ib - 14 503.13 501.90 114.31 I.BI 24.65 26.46 24 1.36 I bOS 0.65 3.61 F AVAI LABLE• FABRIC UNDER STONE
14 Io o. 04 0, IB o. o0 0.22 0 ab 7.22 0.73 0, ~ o, 73 GI 2 2.0 2.50 0.73 0. o0 0. s 2. a P THE ENTIRE AREA TO S 1 X INCHES DEEP. 14 10 50!.80 501.26 91.16 0.73 26.46 27.19 30 0.50 0,59% 6 3 2. R REVIS I. STRIPES ON &ARRIGADE RAILS SLOPE AT AN ANGLE OF 45 DEGREES IN THE REVISIONS CRO55 SEGTI ON DIRECTIIXJ rRAFFIC IsTO Pass.
12 to OIB o.41 0.00 059 o. s3 7.22 227 0.~ 2.27 GI 2 2.0 4.73 2.27 00o ALL LOOSE ROCK ROOTS, AND OTHEROBSTRUCTIONS DATE oES~ DATE DESCRIPTIGN BARRICADE RAIL STRIPE SHALL BE 6 INCHES. 5 3. THE SIDES OFTHE BARRICADE FACING TRAFFIC SHALL HAVE RETROREFLECTIVF RAIL FACES.
12 - l0 5<~5.41 502.51 132.34 2.27 0. o0 2.27 15 0. so 2.19 o. 65 0, 75 3. REMOVE 1o B o. Io 0 39 0.00 0 49 a 47 1.22 1.67 0.~ 1.67 GI 2 2.0 3.98 1.61 000 1 LEAV I N6 SURFACE REASONABLY SMOOTH AND UNIFORM.
D B 501 16 500.38 103.36 1.61 29.46 31.13 30 0 51 0.155 0.65 2. 3 9 e o 25 0 oe o a~ 0 33 0 8a 1.22 1.92 0 cn 1.92 cl I 2.2 2.09 1.92 000 4. APPLY AGRICULTURAL LIME, FERTILIZER AN ( NOT 10 SCALE) ~ b
7 1.21 0.~ 1.21 u 1 2 2 1,62 1.21 0.~ ~ - 7 604 26 soa.o2 31.w 1.91 0.00 1.92 Is o.5a o 7n o. 6s 0.71 DSUPERPHOSPHATE UNIFORMLY AND MIX WITH 501 L 6 0 Ia o. Io 000 0.24 0 l0 22 N ARD TEMPORARY BARRICADE 7 STA D GONSTRUGTION ENTRANCE
7 - 6 503.92 501.29 129.92 1.21 1.92 3, 13 15 0, 50 2 ~ 02% 0. b5 0.86 8 IXfsito 0.21 0.09 0 CO 0,30 0.77 1.22 1.67 0.~ L67 CI I 2.0 1.49 1.67 0.~ (SEE N~ XTUREI
B - 6 501x.28 s~.o4 31 ~ 1.67 31.13 31. BO 30 0.64 0.71% 0.65 2 qo 5• CONTINUE TILLAGE llNTI L A WELL-PULVERIZED, FIRM b O(f y i to 0.16 0.06 0.00 0, 22 0, 79 1.22 L 25 O. CO 1.25 CI I 2.0 1.69 1.25 O. ~
6 - 4 499 94 4x9.04 99.84 1.25 35.93 37,17 30 o B2 o.9GS o, 65 3.36 REASONABLY UNIFORM SEEDBED 15 PREPARED FOUR TO 4 2 0.11 0.14 0.00 0,25 0 bl 7.22 I.II 0.~ I II G1 2 2.0 3.16 I.II O.OC
4 - 2 499 94 497. CC1 44.31 I. I I 37. 11 38.28 30 0 B7 4.385 0, 65 3.49 SIX INCHES DEEP. Y MIN Y' MIX LamACreD 5~
2 000 0 ~ o. o0 0. o0 0. ~ 1.22 o co 000 0. co FES 6. SEED ON A FRESHLY PREPARED SEEDBED AND COVER SEED _ MINIMUM _ 3
LIGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK AF~~~~R
10 PH 2 OJ I 0.04 0.00 0. 15 0.19 7, 22 0.96 0 ~ 0. Bb Q I 1.9 L 39 0.86 0.00 7~ I ~ 51 60 26, ~ 0.86 0. ~ 0, 86 15 0.50 LOOS 0.65 0.64 SEEDING. R STEEP GUT OR RILL SLOPE - - I
I I x.35 0.71 1.22 1, 79 0 ~ 1.19 c1 I 1.9 2.10 1.79 0, 00 ~ ~ 5 ` 2 7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH. bB 66 0.2 0. 4 0.00 (~g - bb 512.50 509.82 179, 50 1.19 0.86 2.65 15 0.50 I , 5dS 0.65 0.80 r III_~ ROCK I' FREEBOARD _ - ~ I'- 7 I SLOPE I rt~cl ABUTMENTS
66 64 0.14 0.19 0,00 0.33 0.ba 1.22 1,44 0,~ I,as c1 2 1 a 4.45 1.4a o 00 8. INSPECT ALL SEEDED AREAS AND MAKE NECES`~ARY REPAI R.~ - 6a 509.12 509.41 41 ~ 1.44 2.65 a. a9 15 0 5a o 16% a. 65 I. a3 OR RESEED I NGS WITHIN THE PLANT I N6 SEASON, I F POSS I BCE. LE. II_ I ilE TO EX. 2' DAM HE16H1
b4 52 0.36 0.13 0.00 0.49 0.19 7.22 2 BO O.~ 2.80 U 2 I.0 6. A7 2.80 0.00 6n - 54 509.31 5.75 43.67 2.80 4,09 b. a9 15 1.13 1.281 0.65 1.79 I F STAND SHOULD BE OVER b0% DAMAGED, RE-ESTABLISH =1~' - si~luzt DI~SIDN DIrLN 51 DE SLOPES ul rM rEFP(RART SEFDI N6
54 F2 0.00 0.03 0.00 o.~n o 35 1.22 0.13 0.~ 0.13 GI 2 2.0 0.93 0,13 0.00 4 - 7 1 IB o.50 2.o1z o. 65 1.33 F WING THE ORIGINAL U ME, FERTI LI ZER AND 5 52 505.50 507, 45 52.32 0.13 b. 89 .0 OLLO GROSS SECTION "i0 E'~'°' LaTRa NER I NG
52 50 0.11 0.19 C. 00 0.30 0.57 1 22 1.23 0.~ 1.23 61 2 2.p 3.36 1.23 0.00 52- 50 5(15. b1 491. CO 100.87 1.23 7.01 8,25 18 0.61 B.bCI% 0.65 1.55 SEEDING RATES• 12' DI A. RIP-RAP DAM 2
50 0 co o.~ o. o0 0.00 0.w 1.22 0 ~ o.~ o. co , FES 9. CONSULT EFS ENVIRONMENTAL ENGINEERS ON MAINTENANCE OVER 6EOTEXTILE I SEDIMENT FABRIC, UNDERLAY PIT
TRATEMENT AND FERTILIZATION AFTER PERMANENT C0~/tR
I o2 3o n 12 0.03 0.00 0. l5 0_ B3 1.22 0.90 0 ~ 0.90 61 z 1 s 3.02 0.90 0. oo ~ 0 65 0.64 I S ESTABL i `;HED. 1CZ - ICO 519.52 518.8. 138,98 0,90 0.00 0.90 15 0.50 0.5CJ~ 18' DEEP APRON R57 RlASHED STONE _ AT 0% SLOPE 12" DEEP
I CO 81 C. 28 0, 08 0.00 0.36 0. B2 ? 22 1.12 0 ~ 2. 12 61 2 I.5 4.40 2. I 1 0.00 100 - Bl 5~ 8- 72 516.10 257. I a 2.12 0.90 3.02 15 0.50 1.025 0.65 0.85 APPLY: UPSLOPE TOE ~aOSIT1VE GRADE I~0% MAX.
88 Bb 0.19 0.02 0.00 0.21 0.89 1, 22 1.35 0. ~ 1.35 CI I I.0 2.15 1.35 0.00 eB - B7 5re 40 51b.1o se bo 1.35 0.00 1.35 15 o. so 051% 0.65 0.67 AGRICULTURAL LIMESTONE, 2 TONSIACRE { 3 TONS/ACRE IN CLAY SG' LS) LS) ~ ~ DIMENT BASIN H3 SE
81 'S5 0.91 0. I 1 0, 0p 0.48 0, 74 7, 22 2.56 0, ~ 2 ~ 56 CI I I , 0 3, 07 2.56 0. ~ 81 - 90 516. ~ 515.41 I Ob. 09 2.56 4, 38 6.93 I B 0.50 0.505 0.65 1.32 FERT I C I ZER~~ I ,000 LBS/ ACRE - I I 10 ~ SIDE SLOPES ~ - ROCK DAM
90 0. a' 0.~ 0,00 0.00 0.00 1.22 0 ~ O.~ 0.00 FE5 SUPERPHOSPHATE: 500 LBS/ACRE - 20 b ANALi515 15 2: i InAx.l ~ ~ SPILLWAY CALGULATION~ ~b
MULCH 2 TONS/ACRE -SMALL GRAIPt 51P,AW ~ . ~ DRAINAGE AREA = 12.25 AC. AW ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Q I 0 = 49.83 GFS
B9 B3 0.18 0, 93 0.00 I . I 1 0. A5 1.22 3.58 0. ~ 3. SB 61 2 I.5 b. 58 3.58 0. ~ 0, b5 0.94 ASPHALT EMlJL51 OPd AT 300 GAL';; ACRE 89 83 509.42 509, I 1 4B. ~ 3.58 0.00 9.58 15 0.50 0 52S ANCHOR' RE ~ ~ ~ ~ ~ ~ a Q=CwXLXH
B6 8 O. I3 0.01 0.~ 0.14 0.91 7.22 0.92 0,~ 0.92 GI I 2.0 1.42 0.92 O.OC ~ _ 85 512.88 512.64 41.00 0.92 O,(b 0.92 15 0.50 0.595 0.65 0.65 STEEP LUT OR Ft LL SLOPE Q 3. O X L X I
85 8a 0.29 O. a 0.~ 0.40 0.19 7,22 2.27 0~~ 2.27 CI I 2.0 2.36 2.27 0,00 I 1.865 0.65 G 81 85 - 84 51254 510.31 120.13 2.27 0.92 3. 18 5 0.50 REVD 37.7 GFS = 3L REV1510N5 WEI R LENGTH = l5 FT.
84 83 0.11 O I1 0.00 0.28 0.59 1.22 1 I8 0.00 I.IB CI I 2.0 1.64 I IB 0.00 ea - B3 510.21 509.11 140.52 1.18 3.18 4.37 15 0.54 0.745 0.65 I.Oq DATE DE5 DATE pESCRIPnON
83 Offslre 0.18 0.04 0.00 0.22 0.84 7.27 134 O. Lb 1.34 CI I 1.5 1.92 1.34 0.00 B3 - BI 508.92 506.67 91.00 1.34 7.95 9.29 I8 0.18 0.8IS 0.65 1.71 _ PLAN VIEW ROCK DAM DETA L
82 Of£Slte 0 23 O.OI 0.(70 0.30 0.81 7.22 175 O.Cb 1.15 LI I 1.5 2.22 1.15 0.00 82 - 81 508.17 SO7.b4 41.Cfi 1.75 9.29 11.04 24 0.50 O.SBS 0.65 1.46 MAINTENANCE~~ INSPECT REGULARL7 TO ENSURE DEVICE IS FUNCTIONING PRaPERLT.
...i ..r~i n _ ..~,..r...~.~.-r ..i,r „A~r nr nr[I I1.1 f\CI~Tu
81 50 0.00 0.06 0.00 0.06 0.35 1.22 0. 15 0.00 0. 15 GI 2 0. 7 1.99 u, ti 0• W 82 W 507 54 501.32 34.66 0. 15 1 L 04 1 I . 19 24 0.50 0.55% 0, 65 I.47 V I VtKS I UN U I I (,t1 REMOVE SEDIMENT BEFORE SEDIMENT A(-WIlJLAI I G" SuKrnS~t~ uNC-rnLF Ur- I u L/L-REVISION NI CITY STAFF REVIEW 03-25-04
80 0,00 0.00 0.00 0-00 0.00 7.22 0 00 0. oo 0.00 _
A c>_uSrER UN i T QEvEL oPMENT SCALE; VARIES EROS I ON CONTS REVISION N2 CITY STAFF REVIEW 04-20-04
NTROL REVISION #3 CITY STAFF REVIEW 05-I9-04 RIESTC-R-A-VEN & AsSOCIATESINC.
~
HARR I NGTON PO I NT DATE: FEBRUARY 20, 2004 DETA I L SHEE LAND USE CONSULTANiEET TS PLANNERS / LANDSCAPE DESIGNERS I SURVEYORS / ENGINEERS 3803 - B Computer Drive, Suite 104 Raleigh, N.C. 27609. Phone [phone] . Fax [phone]. Email [e-mail]
TH 1ROL I NA PROJECT: 2003-004.001
HOMES PHASE ONE RALEIGH, NOR C CENTEX PRELIMINARY NOT-RELEASED FOR CON5TRUCTION
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- - - - - ~ I ~ ~ ~ STANDARD i - , ~ O I ! I ~ ~ 1 ~ ~ ~ - _ . D NGDOT $T DARDS~ CITY OF RALEIGH AN - I~ ~ ~
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TEMPORARY ' SEDIMENT , _ L1MlT_TYP.- _ _ ~ ~ , L.
- - - - - - - - ~ ~ ~ ORARY DIVERSIbN ~ END DOUBLE SILT, BAS 1 ~ BASIN _ SEDIMENT.- ~ ~ , i ,i ; 'i I I._: - , 1 BASIN I _
SWAI.E~~ TION TO HERE AS FENCE HERE ~ , _ ~ BAMN _ _ - , PAD Af~E bET• - _ _ _ - ~ 1 81.52 ' ' ~ _ _ _ , - - - _ - /
~ _ ROW OF 51 LT fENGE DOUBLE - • _ 1 I 1 _ _
WITH 18' OF.EURSHED STONE , _ ~ _ - _ _ fem.. ~ , ~I II ~ ~ II ~
AT .THE BASS, - _ ~ \ ' \ - - `
, ~ ~
GN.GULIIT I ON5 S~DiNENT ~1~51N DESIGN
----J-- BA51N DIMENSIONS
BA51 N TOTAL RAINFALL GOMP051 TE DI SGHAR6E REQUIRED WIDTH LENGTH DEPTH SURFACE 5PI LLWIY DISTURBED SEDIMENT SERI MENT N0. OF BAFFLE FINANCIALLY RESPONSIBLE PERSONIAGENT i. OBTAIN GRADING PERMIT,
ID DRAINAGE INTENSITY RUNOFF 10 YR SURFADE AREA WIDTH AREA VOLUME VOLUME BAFFLES SPADING REQUIRED PROVIDED RY DIVERSIONS,SILT FENGING,SEDIMENT BASINS OR OTHER NEASU . INSTALL GRAVEL ENTRANGE,TEMPORA 2
AREA I0 YR, GGEFfIGENT AREA PROVI~ GF GF 1. Person to contact should sediment control issues arise doting land-disqulring activity. AG IN/HR G GJ=S SQ FT FT FT FT SQ FT FT HD P AN, CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES, SHOWN ON THE APPROVED L
00 FOR ONSITE INSPECTION BY CONSERVATION INSPECTOR. 3, GALL 890-35 ITE (SEE
3755 10 1.99 3611 7510 6 15 Name: Gray Methuen Telephone: [phone] I NDARIf I NFORh 41 I , 99 7, 22 0, 60 8, 62 3755 43, 3 86, 7 2, 0 BOU INFORMATION IS TAKEN FROM A SURVEY THIS OFFICE. D GRUBBING, MAINTAIN DEVICES A5 NEEDED, ROUGH GRADE 5 UNDARY 4, I F APPROVED, BEGIN GLEARI NG AN
42 0.65 22 0, 60 2.82 1227 24, 8 49.5 2.0 1227 10 0, 65 1180 2453 3 15 TOPOGRIIPHI G I NF 49, 83 21707 VARIES VARIES 2, 0 2 t 701 10 I I , 45 20782 43415 27 15 2. Person(s) firm(s) financially responsibie for this land-d>ISturbmg achv<ty. ~ 'OC~RAPHI G INFORMATION I S FRAM A F I ELD SURVEY BY THIS OFF I GE. EROSION CONTROL NOTES) . MATERIALS AND CONSTRUCT I ON SHALL BE I N STRICT ACCORDANCE WITH NGGENR, D PROTECT INLETS WITH 51 LT FENDING, SEDIMENT TRAPS, OR OTHER
3 • 12, 25 6,18 0, 60 ALL MATERIALS 5 2.15 7,22 0.60 9.31 4057 VARIES VARIES 2.0 4057 10 2.15 3902 8114 6 15 THE CITY OF RAL 5. INSTALL STORM SERER (I F 5HOWN) AN SEE E CITY OF RALEIGH t NGDOT STANDARDS AND S~GIFIGATIONS, AN. INSTALL RETAINING / HEADWALLS. BEGIN CONSTRUCTION,
Cerrtex Homes APPROVED MEASURES AS SHOW) ON THE PL JTRAGTOR TO GRADE ALL LOTS SO STORM-RUNOFF IS DIRECTED I CONTROL NOTES), EROS ON 51BLE DURING CONSTRUCTION,
11111 Name of Person(s) or Firm(s) CONTRACTOR TO 0 1cRd510N C~NTf80L LEGENQ SHEET 3 FOR GN.GULATIONS NaNN N~p~~ AWAY FROM ALL E AY FROM ALL BUILDING PADS, TRA TOR TO MAINTAIN ALL TEMPORARY SEDIMENT BASIN5 AS LONG AS POS
TREE PRDTEGT I ON • THESE BA51 NS REQUIRE ROCK DAMS, SEE ROCK DAM DETAIL ON ~a ~A RQ y, . ~ - ~ _ sTArroARD ~ 2301 S Bush Road Suite 400 5, NO I NFRASTRUGTU (SEE DETAIL SHEET? IN SEDIMENT BASINS AT I/2 DESIGN DEPTH, GLEAN BASIN NIE?l SEDIMENT - TO BE CONSTRUCTED PRIOR TO CONSTRUCTION PLAN APPROVAL b• ~ G D, ONCE STORM SEWER HAS BEEN INFRASTRUCTURE GRADING OPERATION,RUNOFF INTO BASINS SHOULD BE MAXIMIZE
SHON STAKES ~ ~ $ Mailing Address Street Address AND UTILITY PER -'-s°i7P- T~PROTEC710NSISLEE OE~TAIL SNEETi AGGIMJLATION REAGiES I/2 DESIGN DEPTH UT I L I T'( PERMIT I SSUANGE B'f THE G I T'f OF R/~LE I GH ENGINEERING DEPARTMENT. DURING THE APPROVAL OF THE THE SITE HAS BEEN STABILIZED,THE CONTRACTOR MAY, WITH THE DELINEATION BY S01 L AND ENVIRONMENTAL CONSULTANTS, I NG, INSTALLED AND TH FILL SLOPES
b. WETLAND AND NEU (LAND AND NEUSE RIVER BUFFER T SEDIMENT BASINS TO COMPLETE GRADING OF FILL SLOPES. E WALLS TO BE PERFORhfD BY OTHERS, RETAINING INSPECTOR, REMOVE EMP ~1GNRN. CESI GN aF ALL RETAINING AS FINISHED GRADE HAS BEEN ESTABLISHED, ONCE I NSPEGTOR ALLOWS
TEMPORARY FILTER 8151N -SEE Raleigh, NC 27612 7. STRUGIURAL DESI SEDIMENT BASIN SCHEDULE FOR SIZE ~ 1 ~ City State Zip City State Zip WALLS SHOW) GNV ARE FOR LOCd1Tl ON AND ELEVATION PURPOSE5 ONLY, SHOULD BE STABILIZED AS SOON _LS SHOWN ON THESE PLANS TO ENSURE SILT FENCE, DIVERSIONS, AND ROCK CHECK DAMS PREVIOUSLY
I sEE DErAI L SHEETI ; • B. EXISTING UT I L I T ~_.p.._+?,.. DI VER.91 ON SWALE -INSTALL AT I~ y I SHOWN ARE APPROXIMATE. CONTRACTOR RESPCN518LE FOR LOCATION OF ALL REMOVAL OF BASINS, CONTRACTOR ISTING UTILIT ES
GLEARI N6 L I MI T5 1 SEE DETAIL 5t1EET1 UTILITY INSTALLATIONS AND OTHER PUBLIC FACILITIES , ~ P 3. Appourted Agent to receive any notice, process, of pleading in any acction or legal EXISTING ABOVE TIgV, IN THE LOW AREAS ARE IN PROPER WORKING CONDITION AND PERFORM ANY REQUI ISTING ABOVE AND BELOW 6RCUND UTILITY FIELD LOCATION PRIOR TO ANY CONSTRUG INSTALLED ANp AREA UPST ~ OF ROCK MAINTENANCE. ALL SEDIMENT BUILD-UP BEHIND ROCK DAMS TO BE REMOVED
HANDICAP RAMPS ARE TO ~hqS F. eris' out of an matter rel ' to Raleigh City Code Chapter S Part l0. ~ DISTURBED LIMITS INCLUDING SIDEWALKS ANO proceeding mB y Ong ALL STREETS AS SPECIFlED BY h~~M11111N~Nd BE CONSTRUCTED ON MUCH AS POSSIBLE (WITHOUT COMPROMISING PAD GRADI '€TO MAXIMIZE GHEGK DAMS TO BE EXCAVATED AS
CITY CODE. THESE FACILITIES HAVE BEEN APPROVED ENTRANCE I ALt~EO Gra Methuen ~ I , ALL LAND DI STUR91 STAB GOIt5TRI1GTiCNI BY THE CRY OF RALQGH ANO SHALL 8E SO NST y I TH I TY OF RALEIGH STANDARDS, LD BE STABILIZED AS SOON AS PGSS I B TRACTOR TO LAND DISTUR9ING ACTIVITITES SHALL BE CONDUCTED IN ACCORDANCE W G SEDIMENT STORAGE, ALL DISTURBED AREAS SHOU
• " I ~ L UNLESS A CHANGE IS AUTHORIZED BY WRITTEN AP ROYAL, V~.,OCiI T1( I~GT I ON Name of Individual Si of Agent 2. THE ON-SITE DI STUI AREA IS 16, a ACRES. INSPECTOR DURING THI 5 PROCESS AND SHOULD INSTALL 'ADDITIONAL ON-SITE DISTURB® WORK WITH EROSION CONTROL
PUBLIC SANITARY SEWER EASEMENTS ARE TO BE RECORDED ~ T E C50 VIO PRIOR TO RNAL ACCEPTANCE, V, R. P. LE'N6TH WIDTH DEPTH 5 ON 3, ALL TEM'ORARY ERO O 9TONE/WI RP INLET PR.OtEGT I ON pAD l FT. l l FT, l l l N, l i I N,) (F, P, 5, ) TEMPORARY EROSION CONTROL MEA5U~5 SHALL BE MAINTAINED I N PROPER WORKING CONDi T I ON E55ARY TO PREVENT SEDIMENTATION OUT51 DE OF DI ST D L I M I TS. EROSION CONTROL DEVICES NEG
15EE DETAIL SHEER SIGNATURE: 919-781-1952 DURING THE PERIOD NG THE PERT oD aF CONSTRUCT 1 oN. OUGHT U P TO FINISHED GRADE WITH VEGETAT I V I NG, ETD, I TAI NED To ALL 7. STABILIZE SITE AS AREAS ARE BR TRACTOR TO GRADE ALL DIVERSION SWALES So P051 TI VE DRAINAGE I S MAN TE AND ALL AREAS ARE STABILIZED COMPLETELY, GAL FOR INSPECTION
Place of Business inside the Clty of Raleigh Business Telephone 4, CAJTRAGTOR TO bRN A ROGUCNEGK DAM ENGINEERING 2 25 10 27 GLA55 2 23 17, 90 TEI'PoRARY SEDIMEN' T INS, 8, WHEN CONSTRUCTION 15 GOMPLE roRARr SEDIMEN BAs
I SEE DETAIL SHEETI 50 12 6 22 GLASS B 13 15.00 7, I9 2301 S Bush Road Suite 400 Ralei NC 27612 5. CONTRACTOR TO ENS TRACTOR TO ENSURE THAT ALL STONE/WI ~ t NLET PROTEZTI ON DEV I GES ARE INSTALLED AS 500N A5 BY GONSERVAT I ON I NSPEGTOR,
p,~ PUBLIC UTILmES; 80 12 8 22 GLASS B b STORM BASIN5 ARE F. E. S, WI1H RIP RAP 91 5 5 9 CLASS A 3 4.57 Addtess THAT THESE DEVI GES ARE CHECKED AND MAINTAINED i N PROPER WORKING I NSPEGT I F SITE I S APPROVEp, REMOVE REMAINDER OF TEMPORARY tM BAS I N5 ARE BUILT AND 9. WITH THE APPROVAL OF THE OR )I TI ON UNTIL 51 TE I S STABILIZED TO AV01 D DOWJSTREAM SEDIMENTATION. DI MENT BA51 N5, ETD. ,AND SEED OUT OR PAVE ANY BARE AREAS. ALL
A 3 5,65 CONDITION UNTIL 5 NGINEER; 90 5 5 9 GLA55 DIVERSIONS,SILT FENDING, SE TROL DEVICES (LEVEL SPREADER APRONS, TINDER LEVEL SPREADERS,
? EOWI3 I 1 5 22 GLASS B b 8.10 Complete the shore sad sdkro to corer sheet of eroeae rnstrol pbos. This don sot take tie phce ots .III PERM. DIVERSION SWALE TRAFFIC E REMAINING PERMANENT EROSION GON ioo 50 25 0 50 loo ETG.1 SHOULD BE INSTALLED NOW,
BI q4 5 5 9 CLASS A 3 4,50 eompkte fhaschl respoaeiblllty tone. A completed form mast be 6kd w•Itb tie Wle[gi Impectloes I aj Ir- ~ ~ • • • • SOD-LINED GRASS SWALE CONSERVATION ENGINEER: 810115 5 5 9 GLASS A 3 4,50 Dkpsrterest prbr to russsce of permit. I5HED GALL FOR FINAL SITE INSPECTION BY CONSERVATION INSPECTOR.
10. WHEN VEGETATION HAS BEGONE ESTABL ~ . ir.~riTM
V-- 6W5 5WALE ' -s ' 11.N0 DEV I GE 1 5 TO BE REMOVED WITHOUT THE APPROVAL cfi II-It I Nv rtu I m
gam STREAK GR0551 N6 *WIDTH ¦ t (5.5) X PIPE DI METER FAMEA
REV1510N NI CITY 5TAFF REVIEW 03-25-04
A C L U 5 T E R UN I T DEVELOPMENT SCALE: I"=50 REVISION N2 CITY STAFF REVIEW 04-20-04
REVISION N3 CITY STAFF REVIEW 05-19-04 PRIEST,CRAVEN & AsSOCIATESINC. I lop
HA~RR I NGTON F0 I NT DATE: FEBRUARY 20, 2004 EROS ION CONTROL F LANll USh CONSULIANTS PLANNERS /LANDSCAPE DESIGNERS/ SURVEYORS /ENGINEERS )L PLAN 3803•B Computer Drive, Suite 104 Raleibh N.C. 27609. Phone 919 ! 781-0300. Fax 919 / 782-1288. Email [e-mail]
PROJECT: 2003-004,001
CENTEX HOMES PHASE ONE RALEIGH, NORTH CAROLINA PRELIMINARY NOT-RELEASED FOR CONSTRUCTION
E I - - I_MMD Pp"; 1' . Fi IF, rIIF5,_ is mi FN !f HMRR~N1-if14 E~s1ir b:di,a~ AC4GACONSTPUiTION', PHASE !',3RD 5 FPUTIAL, CON-1G119004-II-EROS DIiG hby 10 2004 - 3:12 PM EEN