SW6101204_HISTORICAL FILE_20121107

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
FHISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE A��`A/! oll7
.J
YYYYM M D D

jF'z f u�,J �a Ko i er�t' P,a-'rlj''o �2s a 6f
Application Completeness Review
W- First Submittal ❑ Re -submittal Date Received: 4, to Date Reviewed:
Development/Project Name: SO IE A Go
Receiving stream name (4 T_ - classifi
By 'A%02)
For post -construction requirements, a program will be deemed compliant for the areas where it is
implementing any of the following programs: WS-I, WS-II, WS-III, WS-IV, HQW, ORW, Neuse River Basin
NSW, Tar -Pamlico River Basin NSW, and the Randleman Lake Water Supply Watershed Nutrient
High Density Projects that require a 401/404 within an NSW require 85% TSS, 30% TN and 30% TP removal.
T&E Species (Goose Creek, Waxhaw Creek or Six Mile Creek Water Sheds):
Latitude and Longitude: 35' 1,6 Z Z 179 00 75 J
Project Address:
Engineer name and fir / Thu Tel u:-liP• G. 'fE,.l G ,e- A-sra c ;,�
31m- -&/61j Dom 1�ru fl7T uy Coµ.
❑ Low Density (no curb and gutter) ❑ Low Dens it �ith c xb and gutter outlets igh Density ❑ Other
" /////,4���01/404 impacts to surface waters, wetlands, and buffers (add language to cover letter and/or addinfo letter)
�UA 59,-
rieck for $505.00 included
iginai signature (not photocopy) on application
Legal signature (Corporation-VP/higher, Partnership -General Partner/higher, LLC-member/inanager, Agent).
Check spelling, capitalization, punctuation: http://www.secretary.state.nc.us/corporations/thepige.aspx
If an agent signs the application, a signed letter of authorization from the applicant must be provideo which
includes 11he name, title, mailing address and phone number of the person signing the letter.
❑� subdivided projects, a signed and notarized deed resiriction statement
I3rSaled, signed & dated calculations
u Correct supplement and O&M provided for each
.i7 " Si. -retention
ID"
Dry Detention. Basin
Filler Strip
❑
Grass Swale
❑
!nfiltration Basin
❑
Infiltration Trench
❑
Level Spreader
❑
Permeable Pavement
❑
Restored Riparian Buffer
BMP on site (check all that were provided & number of each)
❑ Rooftop Runoff Management
❑ Sand Filter
❑ Stormwater Wet!and
❑ Wet Detention Basin
❑ Low Density
❑ Curb Outlet
❑ Off -Site
❑ NCDOT Linear Road
�,Isets of sealed, signed & dated layout & finish grading plans with appropriate details
awrlrr,,ative Description of Stormwater management provided
oireport provided
wetlands delineated or a note on the plans that none exist on site and/or adjacent property
EK Details for the roads, parking area, cul-de-sac radii, sidewalk widths, curb and gutter;
ram' Dimensions & slopes provided
Q alln❑ age areas delineated Pervious and impervious reported for each ❑ Areas of high density
it�jfnDJspeclion and maintenance agreements provided
Aoolication comolete 0 Aoolicalion Incomplete Returned: (Date)

TO
TEND
Teng & Associates, Inc.
Engineers / Architects / Planners
205 N. Michigan Ave. Chicago, IL 60601-5924
312/016-0000, Fax [phone]
North Carolina Department of
Environmental and Natural Resources
Wetlands and Stormwater Branch
Raleigh Regional Office
Attn: Robert Patterson
1617 Mail Service Center
Raleigh, NC 27699-1617
TRANSMITTAL
DATE: February 17, 2011
JOB NO.: Fort Bragg — 21383.004
RE: PN66444 Bragg SOF JCU
FILE NO.: Stormwater Project #
SW6101204
WE ARE SENDING N ATTACHED ❑ UNDER SEPARATE. COVER VIA Fed F,xp-Standard THE FOLLOWING:
❑ Prints ❑ Shop Drawings ❑ Specifications ❑ Copy of Letter
® Plans ❑ Samples ❑ Change Order ❑ Payment Request
® Other, See Description Below
NO. OF
COPIES
DATED
SHEET
NO.
DESCRIPTION
2
2/17/2011
Revised Civil & Landscape Plan Drawings (signed & sealed)
1
2/17/2011
Revised Supplement Forms for 4 BMPs (signed & sealed)
1
2/17/2011
Stormwater Narrative
1
2/17/2011
Supporting Exhibits and Calculations Booklet
THESE ARE BEING TRANSMITTED AS INDICATED BELOW:
❑ As Requested ® For Approval ❑ For your Information
XC: Fort Bragg Directorate of Public Works
Water Management Branch
Attn: ISME-BRG-PWE-W (Lee Ward)
Bldg 0-9125, McKellars Road
Fort Bragg, NC 28310
® For your Comments
Q1103 r z aa�
BY: Thu Truitt, P.E.
n` o0;9FR

RFSPowSes
NCDENR 4 T TACRED
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Pardue Coleen H. Sullins Dee Freeman
Governor Director RECEIVED Secretary
January 18, 2011 JAN 2 4 Z011
Thu Truitt, P.E.
Teng and Associates
205 N. Michigan Ave., Ste. 3600
Chicago, IL 60601
Dear Thu Truitt:
T ENG
Subject: Request for Additional Information
Stonnwater Project No. SW6101204
SOF Operational Communications Facility
Cumberland County
The Division of Water Quality Central Office received a Stormwater Management Permit Application for
the subject project on December 21, 2010. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
Please provide the state stormwater permit number for the area described as Phase I. 1 have
been unable to verify that it was permitted.
2. Please provide more information about why this site is classified as a brownfield. This could be
a potential issue with using infiltration on this site.
A boring within the footprint of each bioretention cell must be performed to specifically state
the estimated SHWT. Since underdrains are not being provided, an infiltration test must also be
performed within the footprint of each bioretention cell. Use of an Amoozemeter or double ring
infiltrometer are the recommended methods for infiltration testing. The test should be
conducted at the proposed bottom elevation of the sand or gravel.
4. Use of a dry detention basin for treating DA 2 & 3 does not provide the minimum 85% TSS
removal requirement. Please make necessary changes to remove 85% TSS.
DA 1 appears to have more built upon area (BUA) than the 58% stated. Please verify the
percent BUA, total DA, and impervious areas.
6. The DA, impervious area, volumes, and other design information for DA 2 & 3 are not
consistently shown on the supplement
Wetlands and Stonnwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1
Internet:w .ncwaterquality.org
An Equal Opponu ay 1 Affumalive Action Employer
7U, 101, plans, and Cates. Please revise.
C 7 .U,2
NorthCarolina
Aaturally

Thu Truitt, P.E.
SW6101204 — SOF Operational Communications Facility
January 18, 2011
7. The bioretention (BR) cells are undersized since the design accounts for infiltration during the
storm event. Storage and treatment must be provided for the entire volume calculated using the
simple method for the I" rainfall.
8. The bottom of the pond area for BR-1 and BR 3 needs to be flattened to provide a consistent
ponding depth across the .whole surface area (SA). Also, the SA provided needs to be based on
the SA of the media and should not include ponding over impermeable asphalt surfaces.
Regular pond (every 1" rainfall or more) on the parking and road surfaces could cause issues
with the integrity of the pavement.
9. BR 3 is mislabeled on CG102.
10. The use f seed mixes s not allowed for bioretention cells. For grass cells, sod must be
specified are-shoi be taken to not use sod grown in clayey soils that would not allow the
water to infiltrate to the media below it. For shrub/mulch cells, double or triple shredded
hardwood mulch must be specified.
1 l . For best survival, trees should be planted to have from 2/3 to 1 /2 of the root ball above the
media. Please provide an additional tree planting detail to show this for trees in the bioretention
cells.
12. The planting plans need to be s a ed, stied, and dated.
13. Please explore options for directing overflow from the dry basins around the bioretention cells.
Directing larger storm overflows from dry basin 2 to BR 2 and then to BR 3, as designed, is not
recommend. This will likely result in an increase in maintenance for the bioretention cells.
Please note that this request for additional information is in response to a preliminary review. The
requested infonnation should be received by this Office prior to February 18, 2011, or the application
will be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time extension
to the Division at the address and fax number at the bottom of this letter. The request must indicate the date
by which you expect to submit the required information. The Division is allowed 90 days from the
receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement
action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number SW6101204 on all correspondence. All original
documents must be returned or new originals must be provided. Copies are not acceptable.
If you have any questions concerning this matter please feel free to call me at [phone], or at
[e-mail]..
Page 2 of 3

inu hunt, r.t .
SW6101204 — SOF Operational Communications Facility
January 18, 2011
Sincerely, f�
Robert D. Patterson, P.E.
Environmental Engineer
Stormwater Permitting Unit
cc: Mr. Craig Lantz — Fort Bragg DPW-WMB
Mike Lawyer - Fayetteville Regional Office
SW6101204 File
Page 3 of 3

Below is a summary of the telephone conversation Monday, January 31 s` and
additional comment responses dated February 17, 2011 due to additional
telephone/email coordination.
1. Please provide the state stormwater permit number for the area
described as Phase I. 1 have been unable to verify that it was permitted.
It is currently unknown if the Phase 1 went in for a stormwater permit. This
project (Phase 2) does take into account runoff from their roof and portions of
their landscape area. Their design did include biocells for runoff from their
parking lot. You will verify with NCDENR Compliance if their lack of permit will
interfere with approval of this project.
February 17, 2011 - Fort Bragg has agreed to submit a separate application
for the Phase 1 stormwater permit.
2. Please provide more information about why this site is classified as a
brownfield. This could be a potential issue with using infiltration on this
site.
The site is defined as a brownfield for LEED purposes. The SWMU Area appear
to be directly under the proposed building footprint, not under the biocells.
Attached are the NCDENR letter and exhibits addressing the SWMU. Review of
the monitoring wells on site shows groundwater contaminants below EPA limits
in the biocell areas. You are waiting on Marti Morgan (NCDENR) for additional
information.
February 17, 2011 - Per telephone/email exchanges, the area is a brownfield and
is monitored. Impermeable geomembrane liners are added under the bio-
rentention cells to minimize infiltration. See CG112 & 113.
3. A boring within the footprint of each bioretention cell must be performed
to specifically state the estimated SHWT. Since underdrains are not being
provided, an infiltration test must also be performed within the footprint of
each bioretention cell. Use of an Amoozemeter or double ring infiltrometer
are the recommended methods for infiltration testing. The test should be
conducted at the proposed bottom elevation of the sand or gravel.
Underdrains will be installed. The 2005 well data are included with the SWMU
exhibits. Fort Bragg Environmental Department will provide the data from
previous years. We will forward them to you when we receive them.
February 17, 2011 - Monitoring well information has been added to the plans,
See B102.

4. Use of a dry detention basin for treating DA 2 & 3 does not provide the
minimum 85% TSS removal requirement. Please make necessary changes
to remove 85% TSS.
Commercial treatment structure is not accepted, inline dry basins only provide
75% TSS. The dry basins will be converted to biocells. (This has been forwarded
to the Fort Bragg Stormwater Department for approval).
February 17, 2011 - Fort Bragg Water Management Department has approved
the change. They will re-sign the required documents.
5. DA 1 appears to have more built upon area (BUA) than the 58% stated.
Please verify the percent BUA, total DA, and impervious areas.
Numbers will be revised.
6. The DA, impervious area, volumes, and other design information for DA
2 & 3 are not consistently shown on the supplement forms, SWU-101,
plans, and calcs. Please revise.
These numbers will be revised with the revisions to the biocells noted in No. 4.
Only one worksheet would be required for the west drainage area if both basins
are biocells.
7. The bioretention (BR) cells are undersized since the design accounts for
infiltration during the storm event. Storage and treatment must be provided
for the entire volume calculated using the simple method for the 1" rainfall.
The dry basins will be converted to biocells, which will have adequate room for
the south and west drainage areas.
8. The bottom of the pond area for BR 1 and BR 3 needs to be flattened to
provide a consistent ponding depth across the whole surface area (SA).
Also, the SA provided needs to be based on the SA of the media and
should not include ponding over impermeable asphalt surfaces. Regular
pond (every 1" rainfall or more) on the parking and road surfaces could
cause issues with the integrity of the pavement.
The pavement will be removed from the surface area calculation. Majority of
the biocell will be flattened, however a portion will still be sloped to match back to
adjacent grades. Bottom slope shall not exceed 1 %.
9. BR 3 is mislabeled on CG102.
Label will be revised.

10. The use of seed mixes is not allowed for bioretention cells. For grass
cells, sod must be specified. Care should be taken to not use sod grown in
clayey soils that would not allow the water to infiltrate to the media below
it. For shrub/mulch cells, double or triple shredded hardwood mulch must
be specified.
Sod will be specified for the grassed cells. For shrub/trees, mulch will be
specified.
11. For best survival, trees should be planted to have from 2/3 to 1/2 of the
root ball above the media. Please provide an additional tree planting detail
to show this for trees in the bioretention cells.
Additional detail will be provided.
February 17, 2011 - Per the telephone conversion February 14th, the tree detail
on the plans are acceptable.
12. The planting plans need to be sealed, signed, and dated.
Planting plans can be sealed/signed by a PE. Does not require a Landscape
Architect's seal.
13. Please explore options for directing overflow from the dry basins
around the bioretention cells. Directing larger storm overflows from dry
basin 2 to BR 2 and then to BR 3, as designed, is not recommend. This will
likely result in an increase in maintenance for the bioretention cells.
Dry basins will be converted to biocells.
February 17, 2011 - Bypassing runoff from larger storm events around the bio-
retention cells could not be accomplished due to space constraints. However
cells 1 and 2 are sized to treat more than the minimum required and the surface
overflow for upstream cells 1 & 2. go directly into the storm pipes.

rr.;-
North Carolina
Beverly Eaves Perdue
Governor
Thu Truitt, P.E.
Teng and Associates
205 N. Michigan Ave., Ste. 3600
Chicago, IL 60601
Dear Thu Truitt:
�1'4A
NCDENR
Department of Environment and
Division of Water Quality
Coleen H. Sullins
Director
January 18, 2011
Natural Resources
Subject: Request for Additional Information
Dee Freeman
Secretary
Stormwater Project No. SW6101204
SOF Operational Communications Facility
Cumberland County
The Division of Water Quality Central Office received a Stormwater Management Permit Application for
the subject project on December 21, 2010. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
1. Please provide the state stormwater permit number for the area described as Phase 1. I have
been unable to verify that it was permitted.
2. Please provide more information about why this site is classified as a brownfield. This could be
a potential issue with using infiltration on this site.
3. A boring within the footprint of each bioretention cell must be performed to specifically state
the estimated SHWT. Since underdrains are not being provided, an infiltration test must also be
performed within the footprint of each bioretention cell. Use of an Amoozemeter or double ring
infiltrometer are the recommended methods for infiltration testing. The test should be
conducted at the proposed bottom elevation of the sand or gravel.
4. Use of a dry detention basin for treating DA 2 & 3 does not provide the minimum 85% TSS .
removal requirement. Please make necessary changes to remove 85% TSS.
5. DA 1 appears to have more built upon area (BUA) than the 58% stated. Please verify the
percent BUA, total DA, and impervious areas.
6. The DA, impervious area, volumes, and other c
consistently shown on the supplement forms, S
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699.1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] Customer service: 1-877-623-6748
Internet. www.ncwaterqualily,org
An Equal Opportunity 1 Affirmative Action Employer
information for DA 2 & 3 are not
FIFA-cs'.1 Please revise.
Pdll.V 0 ? '1:012

"Chu Truitt, P.E.
SW6101204 — SOF Operational Communications Facility
January IS. 2011
The bioretention (BR) cells arc undersized since the design accounts for infiltration during the
storm event. Storage and treatment must be provided for the entire volume calculated using the
simple method for the 1" rainfall.
8. The bottom of the pond area for BR 1 and BR 3 needs to be flattened to provide a consistent
ponding depth across the whole surface area (SA). Also, the SA provided needs to be based on
the SA of the media and should not include ponding over impermeable asphalt surfaces.
Regular pond (every 1" rainfall or more) on the parking and road surfaces could cause issues
with the integrity of the pavement.
9. BR 3 is mislabeled on CG102.
10. The use of seed mixes is not allowed for bioretention cells. For grass cells, sod must be
specified. Care should be taken to not use sod grown in clayey soils that would not allow the
water to infiltrate to the media below it. For shrub/mulch cells, double or triple shredded
hardwood mulch must be specified.
11. For best survival, trees should be planted to have from 2/3 to 1/2 of the root ball above the
media. Please provide an additional tree planting detail to show this for trees in the bioretention
cells.
12. The planting plans need to be sealed, signed, and dated.
13. Please explore options for directing overflow from the dry basins around the bioretention cells.
Directing larger storm overflows from dry basin 2 to BR 2 and then to BR 3, as designed, is not
recommend. This will likely result in an increase in maintenance for the bioretention cells.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to February 18, 2011, or the application
will be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time extension
to the Division at the address and fax number at the bottom of this letter. The request must indicate the date
by which you expect to submit the required information. The Division is allowed 90 days from the
receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement
action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number SW6101204 on all correspondence. All original
documents must be returned or new originals must be provided. Copies are not acceptable.
If you have any questions concerning this matter please feel free to call me at [phone], or at
[e-mail].
Page 2 of 3

rr-�'hu Truitt, P.E.
S W6101204 — SOF Operational Communications Facility
January 18, 2011
Sincerely,
Robert D. Patterson, P.E.
Environmental Engineer
Stormwater Permitting Unit
cc: Mr. Craig Lantz — Fort Bragg DPW-WMB
Mike Lawyer - Fayetteville Regional Office
SW6101204 File
Page 3 of 3

TEND TRANSMITTAL
Teng & Associates, Inc.
Engineers / Architects / Planners
205 N. Michigan Ave. Chicago, IL 60601-5924
312/616-0000, Fax [phone]
North Carolina Department of
TO: Environmental and Natural Resources DATE: December 20, 2010
Raleigh Regional Office
Attn: Water Quality Section JOB NO.: Fort Bragg — 21383.004
1628 Mail Service Center RE: PN66444 Bragg SOF JCU
Raleigh, NC 27699-1628 FILE NO.:
WE ARE SENDING ® ATTACHED ❑ UNDER SEPARATE COVER VIA Fed Exp-Standard
THE FOLLOWING:
❑ Prints ❑ Shop Drawings ❑ Specifications ❑ Copy of Letter
❑ Plans ❑ Samples ❑ Change Order ❑ Payment Request
® Other, See Remarks Below
NO. OF
COPIES
DATED
SHEET
NO.
DESCRIPTION
1
12/20/2010
Stormwater Management Permit Application Letter with
detailed list of Supplemental Documents and Plans
THESE ARE BEING TRANSMITTED AS INDICATED BELOW:
❑ As Requested ® For Approval ❑ For your Information ® For your Comments
XC: Fort Bragg Directorate of Public Works
Water Management Branch
Attn: ISME-BRG-PWE-W (Lee Ward)
Bldg 0-9125, McKellars Road a3l40lea0l698gfipjeH
Fort Bragg, NC 28310 HN30ON BY: Thu
o�oa z �3a
a3AFAIt
P.E.
N 0 V " 7 [U
'ENR - WAr'x CdJf1JTY

TEND Chi North Michigan Avenue 312.6I6-00
Chicago, Illinois 60601-5924 J12.G16b06969 fax
December 20, 2010
North Carolina Department of Environmental and Natural Resources
Division of Water Quality— Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628
Re: Stormwater Management Permit Application
SOF Operational Communications Facility
NPDES Approval ID: CUMBE-2011-088
Teng Project No. 21383.004
Dear Sir or Madam:
This letter is a request for a stormwater management permit review and approval of the SOF
Operational Communications Facility located at and owned by Fort Bragg, NC. Please find attached the
completed Application form and supplemental documents as listed below:
2 Stormwater Management Permit Application Forms (I signed original & I copy)
I Check in the amount of 505 dollars made payable to NCDENR
5 Supplement forms (2 Dry Detention Basins & 3 Bioretention Cells signed & scaled)
5 Operation & Maintenance Agreements (2 Dry Detention Basins & 3 Bioretention Cells
signed)
I Stormwater Narrative
I Drainage Impact Study (signed and sealed)
2 Sets of Civil Plans (signed and scaled)
2 Sets of Landscape Plans
1 Foundation Design Report
If you have any questions, please do not hesitate to call.
Very truly yours,
TENG & ASSOCIATES, INC.
Thu Truitt, P.E.
Senior Civil Engineer
xc: Lee Ward/Fort Bragg DPW (by email)
Courtney Semlow/Teng
ATLAWA CMCAGO CCILLAEUS DALLAS DENvER LOS ANGELES MLWPUEE RCFMOFD SMI DIEW soun-FIELD Sr.LCUS

STORMWATER MANAGEMENT NARRATIVE
Introduction
The proposed site is located within Fort Bragg, North Carolina. The site is northwest of the Reilly
Street and Butner Road intersection. The scope of the project is to place a 23,322 square foot
building and it's appurtenances on 3.58 acres of land. The appurtenances include pavement for
vehicles and equipment, utilities, stormwater best management practices (BMPs) and landscaping.
The proposed building, also described as Phase 2, is abutting another structure that is currently
under construction and is described as Phase 1. See G1101 of the plan sheets for the site location
and layout.
Existing Conditions
The existing land within the proposed site's built upon area (BUA - also described as the limit of
construction LOCs on the plan sheets) is a quarter undeveloped land and three quarters disturbed
land due to existing Shughart Way (street), an unnamed gravel road, a metal but and construction
from Phase 1. The undisturbed land contains a heavily vegetated ditch which conveys stormwater
runoff from existing offsite development from the west. Portions of Phase I's stormwater runoff,
flow through the BUA from the south.
Currently the offsite runoff from the west and Phase 1 collect within the Phase I's temporary
sediment basin located within the BUA. Since the sediment basin is only sized for the
construction's erosion control, it will be inundated during heavier storm events, overflow the
existing gravel road and eventually enter the existing drain inlet to the north, outside of the BUA.
The owner has stated that the gravel road does flood.
Offsite stormwater runoff from the east vegetated Swale also enters the temporary sediment basin.
Existing topography for the onsite and offsite within 50 to 200 feet outside of the BUA was
surveyed recently and are shown on the plan sheets VFI01 and VF102. The offsite drainage areas
shown on CGI I I and used for the offsite drainage calculations were based on interpolation from
the USGS maps (10 foot contours), Fort Bragg contour file (two foot contours and outdated — did
not show current building and pavement conditions) and Google 3D elevations. The contours for
the offsite are not shown on the construction plans because they were not provided by a land
surveyor.
The Fort Bragg Environmental Division has verified that wetlands are not within or abutting the
BUA. The existing site is classified as a brownfield.
Proposed Condition
The proposed stormwater improvements within the BUA are listed below. All detailed calculations
and methodologies are provided in the Drainage Impact Study.
1. Constructing concrete curb and gutter to contain offsite surface runoff along the existing street.
2. Limiting impervious cover to just meet the owner's functional requirements. Consolidating
pervious space at the lowest areas of the BUA to direct stormwater runoff from the impervious
areas to pass through it. All roof runoff from Phase 1 and 2 are to be released onto the surface
and directed to the bioretention cells.
3. Utilizing the construction sediment basins by enlarging and vegetating them or�a-permanent —
bioretention cell. v
iG�-

4. Installing 4 BMP devices (see CG 112, CG 113 CG 114 and C-508). Four bioretention cells treat
runoff from pavement, roofs and landscaped areas. These systems were chosen to achieve the
85% TSS removal. Due to known contamination of the soil deep beneath the site, the
bioretention cells will be lined to prevent infiltration into the in -situ soil. Drain tiles will be
added to collect the water at the bottom of the cell and outlet to a conventional storm sewer.
LOC 1 and 2 (see GIIOI) on the plan sheets are Bid Options. They are included in the BUA
and will be permitted with these plans, but may not be constructed.
5. Providing 70 new trees and over 200 new shrubs throughout the BUA. The tree canopies range
from 25 to 35 feet in diameter at full growth.
The offsite runoff from the east is to be redirected north, out of the BUA. It will flow directly into
the existing ditch between the BUA and the railroad tracks, which is where all the onsite and offsite
stormwater runoff eventually end up.
The offsite runoff from the south parking lot of Phase 1 is bypassing the proposed BMPs.
Unfortunately, the roof runoff and unpaved space still flows through the BUA. This could not be
redirected without redesigning the Phase 1 storm systems, encroaching outside of the approved
BUA, and exceeding the allowed budget.
The offsite runoff from the east is both surface flow and underground. The surface flow from the
street "mixes" with onsite runoff from the proposed west concrete driveway. This surface runoff
will be directed through the bio-cell within the proposed parking lot. The offsite underground flow
will be directed through the site and connected into the existing 36" storm line north of the BUA.
Summary
The proposed stormwater management and BMPs are designed to improve the existing site
condition, provide adequate support facility for the building users and maintain the allowed budget.
Though the improvements increase the impervious area in the BUA, it does stabilize the site and
increase tree canopy area. All onsite runoff is directed to the 4 BMP treatment devices. Offsite
runoff was directed around the site, where possible without changing the flow pattern drastically,
or through the BMPs.

North Carolina
Beverly Eaves Perdue
Governor
Mr. Craig Lantz
Fort Bragg DPW-WMB
2175 Reilly Road Stop A
Fort Bragg, NC 28310-5000
NCENR
Department of Environment and
Division of Water Quality
Coleen H. Sullins
Director
March 3, 2011
Subject: Stormwater Permit No. SW6101204
SOF Operational Communications Facility
High Density Bio-Retention Project
Cumberland County
Dear Mr. Lantz:
Natural Resources
Dee Freeman
Secretary
MAR 0 7 2011
®VY0
The Stormwater Permitting Unit received a complete Stormwater Management Permit
Application for SOF Operational Communications Facility on March 1, 2011. Staff review of the
plans and specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and Session Law 2006-246. We
are forwarding Permit No. SW6101204, dated March 3, 2011, for the construction, operation and
maintenance of the subject project and the stormwater BMPs.
Note that this permit is for Phase II of this facility; and treats a portion of Phase I that is referred
to in the permit as offsite area. The remaining portions of Phase I will be permitted separately or
as a modification to this permit.
This permit shall be effective from the date of issuance until March 3, 2021, and shall be subject
to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this permit. Failure to establish an adequate system
for inspection and maintenance of the stormwater management system will result in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following
receipt of this permit. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this
permit shall be final and binding.
This project will be kept on file at the Fayetteville Regional Office. If you have any questions, or
need additional information concerning this matter, please contact Robert Patterson at (919)
807-6375; or [e-mail].
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www,nmaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina

Mr. Craig Lantz
SW6101204 — SOF Operational Communications Facility
March 3, 2011
Sincerely,
for Coleen H. Sullins
cc: Ms. Thu Truitt, PE — Teng and Associates
Fayetteville Regional Office — Mike Lawyer
SW6101204 File
Page 2 of 2

State Stormwater Permit
Permit No. SW6101204
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Fort Bragg Directorate of Public Works (DPW)
SOF Operational Communications Facility
Shughart Way (-0.21 miles east of Malvesti St.), Fort Bragg, Cumberland County
FOR THE
construction, operation and maintenance of four (4) bioretention cells in compliance
with the provisions of Session Law 2006-246 and 15A NCAC 2H .1000 (hereafter
referred to as the "stormwater rules') and the approved stormwater management plans
and specifications and other supporting data as attached and on file with and approved
by the Division of Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until March 3, 2021, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 of this permit. The stormwater control has been
designed to handle the runoff from 119,828 square feet of impervious area.
The tract will be limited to the amount of built -upon area as indicated in Section
1.7 of this permit, and per the application documents and as shown on the
approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
6. The built -upon areas associated with this protect shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
Page 1 of 6

State Stormwater Permit
Permit No. SW6101204
5.
The following design
must be maintained
a. Drainage Area, a
Onsite,
Offsite,
b. Total Impervious
Building
Streets/
Sidewal
Other",
Existing
Offsite,
c. Design Storm, inc
d. Max. Ponded Dep
e. Seasonal High W
f. Planting Media D
g. Cell Dimensions,
h. Planting Elevation
i. Top Surface Area,
j. Permitted Storage
k. Bypass / Storage
I. Drawdown Time,
m. Underdrain Diame
n. Number of plant s
o. Receiving Stream/River Basin:
p. Stream Index Number:
q. Classification of Water Body:
'Onsite impervious surface
II. SCHEDULE OF COMPLIANCE
criteria have been provided in
at design condition:
Cell 1 Cell
cres: 1.92 1.76
ft2: 83,635 43,0
ft2: 0 33,4
Surfaces, ft2: 52,941 50,3
s`, ft2: 0 23,3
Parking", ft2: 36,878 0
ks", ft2: 1,965 0
ft2: 9,529 0
to remain", ft2: 4,569 1,73
ft2: 0 25,2
hes: 1.0 1.0
th, inches: 12.0 12.0
ater Table, fmsl: 237.8 236.
epth, feet: 3 3
feet: 107x69 103x
fmsl: 251.0 253.
ft2: 7,580 6,68
Volume, ft3: 7,060 6,68
Elevation, fmsl: 252.0 254.
hours: 6 6
ter, inches: 4.0 4.0
pecies provided: 9 9
the bioretention cells and
2 Cell Cell
0.36 6.32
63 15,682 13,939
99 0 0
21 8,842 7,724
22 0 0
7,372 7,724
0 0
0 0
5 1,470 0
64 0 0
1.0 1.0
12.0 9.0
4 236.0 236.0
2 2
75 45x20 79x20
0 249.5 247.5
7 909 1,490
7 737 966
0 250.5 248.25
6 6
4.0 4.0
grass sod grass sod
UT to Tank Creek / Cape Fear
18-23-27
„C„
The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all time provide the operation and maintenance necessary
to assure the permitted stormwater system functions at optimum efficiency. The
approved Operation and Maintenance Plan must be followed in its entirety and
maintenance must occur at the scheduled intervals including, but not limited to:
4.
5.
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader,
filter media, planting media, underdrains, catch basins and piping.
g. Access to the cell and outlet structure must be available at all times.
Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance and inspection reciords for each BMP. The report
Page 2 of 6

State Stormwater Permit
Permit No. SW6101204
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
9. Access to the stormwater facilities shall be maintained via appropriate recorded
easements at all times.
10. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
13. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to.the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing;to the_Director
that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a completed Name/Ownership Change form signed by both parties, to the
Page 3 of 6

State Stormwater Permit
Permit No. SW6101204
Division of Water Quality, accompanied by the supporting documentation as
listed on page 2 of the form. The approval of this request will be considered on
its merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves a request to transfer the permit.
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 3rd day of March, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6 1

State Stormwater Permit
Permit No. SW6101204
SOF Operational Communications Facility
Stormwater Permit No. SW6101204
Cumberland County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project Name)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 5 of 6

State Stormwater Permit
Permit No. SW6101204
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the.project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation, per the vegetation plan.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to: Fayetteville Regional Office
Surface Water Protection
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
Page 6 of 6

North Carolina
Beverly Eaves Perdue
Governor
Thu Truitt, P.E.
Teng and Associates
205 N. Michigan Ave., Ste. 3600
Chicago, IL 60601
Dear Thu Truitt:
VA
NCDENR
Department of Environment and
Division of Water Quality
Colleen H. Sullins
Director
January 18, 2011
Natural Resources
1AN 2 4 2011
®v
Subject: Request for Additional Infomtation
Dee Freeman
Secretary
Stormwater Project No. SW6101204
SOF Operational Communications Facility
Cumberland County
The Division of Water Quality Central Office received a Stormwater Management Permit Application for
the subject project on December 21, 2010. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
1. Please provide the state stormwater permit number for the area described as Phase 1. I have
been unable to verify that it was permitted.
2. Please provide more information about why this site is classified as a brownfield. This could be
a potential issue with using infiltration on this site.
3. A boring within the footprint of each bioretention cell must be performed to specifically state
the estimated SHWT. Since underdrains are not being provided, an infiltration test must also be
performed within the footprint of each bioretention cell. Use of an Amoozemeter or double ring
infiltrometer are the recommended methods for infiltration testing. The test should be
conducted at the proposed bottom elevation of the sand or gravel.
4. Use of a dry detention basin for treating DA 2 & 3 does not provide the minimum 85% TSS
removal requirement. Please make necessary changes to remove 85% TSS.
DA I appears to have more built upon area (BUA) than the 58% stated. Please verify the
percent BUA, total DA, and impervious areas.
6. The DA, impervious area, volumes, and other design information for DA 2 & 3 are not
consistently shown on the supplement forms, SWU-101, plans, and Cates. Please revise.
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699.1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.nmaterquality.org
An Equal opportunity 1 Affirmative Action Employer
One
NorthCarolina
Naturally

Tltu Truitt, P.1=.
SW6101204 — SOP Operational Communications Facility
January IS, 201 1
The bioretention (BR) cells are undersized since the design accounts for infiltration during the
storm event. Storage and treatment must be provided for the entire volume calculated using the
simple method for the 1" rainfall.
The bottom of the pond area for BR 1 and BR 3 needs to be flattened to provide a consistent
ponding depth across the whole surface area (SA). Also, the SA provided needs to be based on
the SA of the media and should not include pending over impermeable asphalt surfaces.
Regular pond (every 1" rainfall or more) on the parking and road surfaces could cause issues
with the integrity of the pavement.
9. BR 3 is mislabeled on CG102.
10. The use of seed mixes is not allowed for bioretention cells. For grass cells, sod must be
specified. Care should be taken to not use sod grown in clayey soils that would not allow the
water to infiltrate to the media below it. For shrub/mulch cells, double or triple shredded
hardwood mulch must be specified.
11. I -or best survival, trees should be planted to have from 2/3 to 1/2 of the root ball above the
media. Please provide an additional tree planting detail to show this for trees in the bioretention
cells.
12. The planting plans need to be sealed, signed, and dated.
13. Please explore options for directing overflow from the dry basins around the bioretention cells.
Directing larger storm overflows from dry basin 2 to BR 2 and then to BR 3, as designed, is not
recommend. This will likely result in an increase in maintenance for the bioretention cells.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to February 18, 2011, or the application
will be returned as incomplete. The return of a project will necessitate resubmittal of all required items,
including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time extension
to the Division at the address and fax number at the bottom of this letter. The request must indicate the date
by which you expect to submit the required information. The Division is allowed 90 days from the
receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement
action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number SW6101204 on all correspondence. All original
documents must be returned or new originals must be provided. Copies are not acceptable.
If you have any questions concerning this matter please feel free to call me at [phone], or at
[e-mail].
Page 2 of 3

1 nu Truitt, P.E.
SW6101204 — SOP Operational Communications Pacility
January IS. 2011
Sincerely,
Robert D. Patterson, P.E.
Environmental Engineer
Stormwater Permitting Unit
cc: Mr. Craig Lantz — Fort Bragg DPW-WMB
Mike Lawyer - Fayetteville Regional Office
SW6101204 File
Page 3 of 3

NC®ENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of'Jdater Quality
Culeen H. Sullins
Director
November 24, 2010
Dee Freeman
Secretary
Mr. Gregory G. Bean, Director of Public Works ®��� Wt—u—��
Department of Defense
2175 Reilly Road Stop A NOV Z 9 2010
Ft. Bragg, -NC 28376
D 1t o
Subject: Post -Construction Notification
Project ID: CUMBER _Nov22_2010 1
Project: SOF Operational Comunications Facility - JCU
Cumberland County, North Carolina
Dear Sir or Madam,
A review of the Financial Responsibility/Ownership (FRO) form required under the
Sedimentation Pollution Control Act received on November 22, 2010 has determined that the SOF
Operational Comunications Facility - JCU project may be subject to a State Stormwater Permit for
Post -construction.
Unless excluded under the provisions of Session Law 2006-246, Section 8, you must submit
within 30 days an application for a Post -Construction Stormwater Permit to:
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Stormwater Permitting Unit
Post -Construction Application
1617 Mail Service Center
Raleigh, NC 27699-1617
The Post -construction permit is in addition to a North Carolina General Permit (NCG010000)
permit received for construction activity from the Division of Water Quality. For more information
regarding MSI Post -Construction and Phase It Session Law 2006-246 please visit:
htt�//porta l . ncdenr. cTrli/wcbhva/ws/su/star csw
If you have any questions concerning this matter please feel free to call me at 919-807-6379 or e-
mail rac at [e-mail].
Sincerely,
1-
Jennifer Jones
Environmental Engineer
cc: C Fayetteville Regional Office, Surlaca Water Protection Section
�Stormwater Permitting Unit Files
Wetlands and Slomvrter ©ranch One L. 1611 Mail Service Center, Raleigh, North Carolina ?_7699-1617 - NOf[ilCafO�IIIA
Location: 5 -8 7 Salisbury St. Raleigh, North Carolincustom 27604 �llt6lCll��,J
Rhom . mw..n ater FAX, 919�07-64941 Customer Service, 1-877 2:1574a l
Iniernzt: mwvr.ncwaterquality.org
An Eg4ei Opp,mnity 1 Allirm9tive ACBon Employer