SW6110204_COMPLIANCE_20110203

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
)COMPLIANCE EVALUATION INSPECTION
DOC DATE911
YYYYMMDD
9

PLATE
REFERENCE
NUMBER

Lowther, Brian
From: Randall, Mike
Sent: Thursday, February 03, 2011 7:09 AM
To: Lowther, Brian
Subject: FW: Ft. Bragg Stormwater Management Plan.
From: O'Rourke, Michael rmailto:morourkelouisberger.coml
Sent: Wednesday, February 02, 2011 3:24 PM
To: Randall, Mike
Cc: Dydula, Rana S
Subject: Ft. Bragg Stormwater Management Plan.
Mike,
It seems like forever since our kick off meeting for,Ft. Bragg's Stormwater Management Plan for 108" ASP, but the good
news is it is completed. We sent it to the installation a few weeks ago and received word from Lee Ward that he had
check in hand and was mailing it off on the 21" . Hopefully by now, it is on your desk.
I wanted to let you know that since the projects inception we have switched project engineers and now Rana Dydula is
the PE for this effort. If you wouldn't mind, please copy Rana and me on any comments when you respond to the
installation. Taking out one leg of the relay will help us get you a timely response. Thanks.
If you have any questions, please fee free to reach out to us and we will be glad to help.
Michael
Michael O'Rourke
Senior Environmental Scientist
The Louis Berger Group, Inc.
1001 Wade Ave.
Suite 400
Raleigh, NC 27605
[phone] Direct
[phone] Main
[phone] Fax
[phone] Cell
morourke(iMoui sberger. com
W W W.louisberecr.com

DENR—FRO
Architecture & Engineering
4000 Westchase Boulevard, Suite 280
Raleigh, NC 27607
P. 919.828.1876
F. 919.828.1677
www.clarknexsen.com
transmittal
SEP 10 2012
M
DATE:
We transmit the following:
April 17, 2012
®
Drawing
PROJECT:
Ammo Pointe Boulevard
❑
Change Order
TO:
Mike Randall
❑
Computer File(s)
Stormwater Staff Engineer
❑
product Literature
NC DENR-DWQ
APR 1 8 2012
❑ Specifications
❑ Shop Drawings
❑ Samples
® Supplements/Spreadsheets
Wetlands and Stormwater Copies Description
Branch
Stormwater Permitting Unit 1 Drainage Area Map
1617 Mail Service Center
1 Updated BUA Table,
Raleigh, NC 27699-1617
Supplements/Spreadsheets
FROM:
Josh Hurst, PE
Remarks:
SUBJECT:
Fort Bragg - 108`h ADA Complex
Mike,
Stomwater Update
COMMISSION NUMBER:
As discussed on the phone the drainage areas for the 108th
3818
Complex at Fort Bragg have changed slightly during the many
VIA:
Mail
years of construction on that site. Attached you will find the
ROUTE
TO:
documentation that shows the revised drainage areas,
1
corresponding supplements and design spreadsheets. Drainage
2
3
areas 1 & 4 increased in size. BUA for drainage area 1
4
increased in size, while 4 stayed the same by allocating for
S
future BUA. Drainage areas 2 and 3 decreased in size; however,
6
their BUA was held to be the same by allocating for future BUA.
7
8
The supplements and design spreadsheets have been updated
9
and show that all of the ponds well exceed NCDENR surface
101
area and storage requirements. Please do not hesitate to
contact us if you have any questions.
CC:
Lee Ward (with attachments)
Regards,
Josh Hurst, PE, LEED AP BD+C
Page 1 of 2

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater.will- ie collected via pipine networks that<will,dischargeFinto the Wet DetentiomPonds. The Wet .
Detention Ponds are sized to remove 90% TSS for the Coastal region. In addition. the Wet Detention Basins
wilftreat the difference between the pre -construction and post -construction'flows for the 1-year and 2-year
storm event to meet LEEDs requirements.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑,Approval of a Site Specific Development Plan or PUDApproval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.lf claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW —1995 ❑ Ph II — Post Construction
3. Stormwater runoff from this project drains to the
4. Total Property Area: 215.36 acres
River basin.
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) — Total Coastal Wetlands Area (5) — Total Surface Water Area (6) = Total Project Area':
204.96 . acres
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 49.70
9. How many drainage areas does the project have?4 (For high density, count I for each proposed engineered
stormwater BMP. For low density and other projects, use I for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
Basin Information _ . _ _ _ _ _ .
Drainage Area 1
Drainage Area 2 :
-Drainage Area 1.
Drainage Area 4_
Receiving Stream Name
Bones Creek
Bones Creek
Bones Creek
Bones Creek
Stream Class "
C
C
C _
_ C
Stream Index Number *
18-31-24-2
18-31-24-2
18-31-24-2
18-31-24-2
Total Drainage Area (sf)
1,762,578
2,138,790
2,682,475
2,035,130
On -site Drainage Area (sf)
_1,762,578
2,138,790
2,682,475
2,035,130
Off -site Drainage Area (sf)
0
1 0
0
1 0
Proposed Imervious Area** (so
772,541
1273259
1613462
778417
% Impervious Area" (total)
43.83
59.53
60.15
38.25
Iin`ervious** Surface Area _ —
Draina a -Area 1
Drama" e Area 2
Dfaina e Area 3
Drainage Area 4
On -site Buildings/Lots (so
58,608
145,851
_ 169,254
74,044
On -site Streets (sf)
2,068
88,680
139,095
93,895
On -site _Parking .(sf) " "_. _
_ _ 710,541
864,709
_ 1,157,196
346,515 _
On -site Sidewalks (sf)
1,324
123-,471
32,718
75,304
Other on -site (sf)
Future (sf)
0
1 50,548
115,199
1 188,659
Off -site (sf)
0
0
0
0
Existing BUA*** (so
0
0
0
0 _
Total (sf):_
772,541
1273259
1613462
778417
* Stream Class and Index Number can be determined at: htty:/42ortal_ncdenr.orghoeb/wg4 s/csu/classifications
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 07Jun2010 Page 3 of