20081246 Ver 1_More Info Received_20081119 (2)

I I
coEngineering
A division of The John R. McAdams Company, Inc.
LETTER OF TRANSMITTAL
To: Mr. Joseph Gyamfi - Stormwater Mgmt
Review Officer - Express Review
NC Division of Water Quality
2321 Crabtree Blvd., Suite 250
Raleigh, NC 27604
[phone]
Re: Marriott Courtyard - Brier Creek
Re: Request for More Info (Dated:
11114/2008)
I am sending you the following item(s):
COPIES DATE NO. DESCRIPTION
2 Request for More Information Letter 11/14/2008
2 Revised RIC w. Level Spreader Worksheet
2 High-Flow Bypass System w. S litter Detail - Rip-Rap
2 Full - Size Plan Sheets w. Erosion Control Plan
These are transmitted as checked below:
? As requested
? For approval
® For review and comment
? For your use
Remarks:
Copy to:
Date:
11/19/2008
** HAND DELIVER **
Job No.: SRE-07000
Signed:
FOR INTERNAL USE ONLY
? Copy Letter of Transmittal Only to File
? Copy Entire Document to File
2905 Meridian Parkway, Durham, North Carolina 27713
PO Box 14005, RTP, North Carolina 27709
Wj/ 19
iQ V i 9 2008
UENci .. pk?:I LR WALITY
y eTtANDS AND STQRFANATER BRANCH
7
rr?Q
G
_ K
November 14, 2008
Coln B. Sullins, Dircetor
Division of Wafcr Qu;tlity
D1WQ EXP # 08-1246
Wake County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
SREE Hotels
Attn: Mr. Vinay B. Patel
5113 Piper Station Drive, Suite 300
C.hadotte, NC 28277
Project 1Vame; MArriott Courtyard/Residence inn
REQUEST FOR MORE INFORMATION
Tear Mr. Patel,
??Y
? ?110V x ? 240$
On November 14, 2008, the Express Review Program of the Division of Water Quality (DWQ) received your
application for the above referenced project. The DWQ has determined that your application will require additional
information. Please provide the following information so that we may continue to review your project and
prevent denial of your application as required by 15A NCA.C 2H.0506:
Additional Information Requested:
L Ploase submit a completed Required Ttems Checklist (RIC).
2. As required in the RIC, please provide full size plan(s) of the entire site showing:
a.- The level spreader -- high flow bypass channel system;
b. Details of flow splitting device with elevations of weirs, inlet and outlet pipes;
c. Cross section of the bypass channel; and
d. Class of lining material (riprap) to meet the tractive force and/or maximum velocity in the bypass
channel.
Please respond within five (5) days of the date of this letter by sending two (2) copies of the above information in
writing. The Express Review Program is a process that requires all parties to participate in a timely manner.
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 contact Joseph Gyamf or Lia M. Giileski at 919-733-1786 if you have any questions regarding or would like to
set up a meeting to discuss this matter.
401 Overslghtl Express Review Ponnlaing:Unit
1650 Ma11Service Center, Raleigh, North Carolina 27699-1650
2321.CrWree Boulevard, Suite 250, Raleigh, With Carolina 27604
Phone: [phone] FAX 919-733x3893 f Intemet: hf n:/Wo.cnrstatc.pc.uslncaetf?u,d?
Michael P. Enatcy, Csovernor.
William: G. Ross Jr.. Secretary
North Carolina Depa"mcot of Environment and Natural Resources
l?"rhCarotina
A17A71r111!1
An Equat Opporlunlty/atTfrmatlve Action Employer - 50% Recycladllo% Post Consumer Paper
S is?c rely, .
Cyndi Raroly, Supervisor
CSK/.IS 401/Express Review Oversite Unit
ac: File copy
Kevin Yates, EcoEngineering, 2905 Meridian Park-vvay, Durham, NC 27713
USACE Raleigh Regulatory Field Office
Lauren Witherspoon, DWQ Raleigh Regional Office
Mr. Matt Matthews, DWQ Branch Manager
Michael F. $aslcy, Gowntor
`0 William G. Foss Jr., Secretary
t- North Carolina Department of Environment and Natural Resources
`C Coln H. Sullins, Director
Division of Watcr Quality
EXPRESS PERMIT REVIEW PROGRAM
Division of, Water Quality
Department of Environnie>nltal and Natural Resources
401 Oversight/Express Review Permitting Unit
Street Address: 2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center
Raleigh, NC 27699-1650
Contact Information: Phone #: [phone]
Fax 4: 919-733-6893
Fax 1b: Kevin Yates Fax #: [phone]
Subject: Marriott Courtyard/Residence Inca
Date: November 14, 2008
Number of pages including cover sheet: 3
Notes or special instructions:
1e o. i inal. will be sent in the mail. If ou have questions, lease contact Lia M ott Gil.leslci at 919-733-9502
or Joserlh Gyamfi at 919-715-3473.
N?,,?rhCaro iPa
J1 al7traljl
401 OvcrsighVEXpress Review Permitting Unit
7650 Mail Scrvlee Center, Ralrigh, North Carolina 27699-1050
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phonc (919) 733.17461 Fax (919)'133-6993
IntCrnct: h.U,R.ILh24_CJ1LSf1[C.nc_us/newctiands
An Equal Opportunt?)Affhmatlve Action Employer- 50% Recycled/10% Post Consumes Paper
NCDENR
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
I. PROJECT INFORMATION
Project name Courtyard/Residence Inn by Marriott
Contact name Vinay Patel
Phone number 704-364-6008
Date November 13, 2008
Drainage area number #1
It. DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP NA
Drawdown flow from the BMP 0.00 cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Perc ent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a grassed bioretention cell?
To a mulched bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
119,354.00 ftZ
101,494.80 ftz
85.04 %
0.88
2.41 cfs
7.01 min
6.735 in/hr
16.24 cfs
N (Y or N)
N (Y or N)
N (Y or N)
Y (Y or N) Please ; r plP 2 `:.ter p ;har?^ie < on Debw
NA
Width of grass 80.00 ft
Width of dense ground cover 0.00" ft
Width of wooded vegetation 0.00 ft
Total width 80.00 ft
Elevation at downslope base of level lip 334.00 fmsl
Elevation at top of bank of the receiving water 332.00 fmsl
Slope (from level lip to to top of bank) 2.50 % C
Are any draws present? N (Y or N) 0K
Level Spreader Design
Forebay surface area 196.00 sq ft, ?K
Feet of level lip needed per cfs 13 ft/cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm? Y (Y or N)
Length based on the 10-yr storm? N (Y or N)
Length based on the BMP discharge rate? N (Y or N)
Design flow 2.41 cfs
Is a bypass device provided? Y (Y or N) K
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5 Parts L and Il. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material

32.00 it Level spreader le-V u
N (Y or N)

N (Y or N)
Y (Y or N)
2.00 it
2.50 it
7.60 it
0.92 it
5.96 cis
Rip Rap
•- y --------------?
M M

Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and If. Design Summary, page 2 of 2
Ill. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
J
Sheet C-1, 1. Plans (1" - 50' or larger) of the entire site showing:
Sheet C-4 & - Design at ultimate build-out,
Drainage - Off-site drainage (if applicable),
Areas Sheet - Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
Sheet C-1 & 2. Plan details (1" = 30' or larger) for the level spreader showing:
Sheet C4 Forebay (if applicable),
High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build-out.
'7 Sheet SW-C 3. Section view of the level spreader (1" = 20' or larger) showing:
& Sheet D-4 - Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
n - Downslope filter fabric.

See Attached 4. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
A Sheet C-3 & 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire

I Sheet D-4 drainage area is stabilized.
See Attached 6. The supporting calculations.
f
See Attached 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.

NA 8. A copy of the deed restrictions (if required).

I
PROJRC[ NO. SRE-07000
COURTYARD/RESIDENCE INN
THE JOHN R. McADAMS
ma"': SRE07000X.DWG BY MAIMOW ®
COMPANY, INC.
SCAM RALEIGH/AIIZPORT
BRIER CREEK
: N TS - II'16III - PLA NI' W - 8URVZT= - IINYligdQ=TAL

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DATE: 11-18-2008
BYPASS CHANNEL CROSS SECTION RX9lA B 7RLN01S ftK - CRARL4MZ -WRMGWN
900+334M - *m

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Worksheet
Worksheet for Trapezoidal Channel
Project Description
Worksheet Trapezoidal Channf
Flow Element Trapezoidal Chann(
Method Manning's Formula
Solve For Channel Depth
Input Data
Mannings Coeffic 0.047
Slope 0 51000 ft/ft
Leff Side Slope 2.00 V : H
Right Side Slope 2.00 V : H
Bottom Width 2.50 ft
Discharge 16.24 cfs
Results
Depth 1.02 ft
Flow Area 3.1 ftz
Wetted Perim# 4.77 It
Top Width 3.52 ft
Critical Depth 1.02 It
Critical Slope 0.050675 ft/ft
Velocity 5.31 ft/s
Velocity Head 0.44 It
Specific Enerc 1.45 ft
Froude Numb 1.00
Flow Type supercritical
Project Engineer: Leonard McBryde
x:\...\permits\level spreader\channel.fm2 The John R. McAdams Company, Inc. FlowMaster v6.0 [614b]
11/18/08 10:54:39 AM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA [phone] Page 1 of 1
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NOTES-
1. ALL PIPES ARE TO BE FLUSH WITH ;
INTERIOR WALLS.
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2. ALL DIMENSIONS ARE TO INTERIOR i
WALLS. - N
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SPUTTER BOX - P
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INV OUT-334.23
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24" RCP
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PRWBCP NO. SRE-07000

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O. SRE 07000

COURIYARD/RESIDENCE INN
BY MAM=

THE JOHN R. McADAMS
COMPANY, INC.
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