20061804 Ver 5_Individual_20121220

Environmental Consultants, PA
Road • Raleigh, NW& Carolina 27614 • Fi (919) 846 -5900 • Fax: [phone]
wwarsendEC.com
r� ,n rr r,
4�
December 20, 2012
SBEC Project # 6658
To: US Army Corps of-Engineers ..t9 Division of Water Quality
Raleigh Regulatory Field Office WEBSCAPE Unit
Previously Approved
Proposed Modification
d�
Permanent: 150
Attn: Thomas Brown Attn: Karen Higgins
Stream linear feet):
Temporary: 20
3331 Heritage Trade Drive, Ste. 105 512 N. Salisbury Street (9th floo
N
Raleigh, NC 27615 Raleigh, NC 27603
Riparian Buffer (square feet):
cm
Re: River Dell Company, Inc., The Village at Flowers Plantation, Clayton, NC
c=
INDIVIDUAL PERMIT APPLICATION
AID No. SAW - 2008 -01712 5
w
DWQ Project #20061804, VerOCertification No. 3766
!1 l
°
Modification of Impacts to Crossing #1 and Special Condition "L"
0
Dear Mr. Brown & Ms. Higgins:
Please consider this letter our formal request on behalf of the Permittee for a modification to
Crossing #1 and to Special Condition "L" of the approved Individual Permit No. SAW - 2008 -01712
issued on April 22, 2010 and Individual Certification No. 3766 (DWQ Project #20061804, Ver.3)
issued on March 15, 2010.
Crossings #1
In our original approvals, the permittee was authorized to impact 150 linear feet of permanent and
20 linear feet of temporary Important/Perennial stream for Crossing #1. It was understood at that
time, that the project engineer would not be able to provide a final design of the stream
crossing(s). At this time, the project engineer has been able to re- review Crossing #1 and is
proposing to reduce the permanent impacts to the stream by 42 linear feet and no temporary
impacts. In addition, proposed riparian buffer impacts have been reduced by 3,652 ft2. Please
see table below summarizing previously approved and the proposed modifications to Crossing
#1.
Special Condition "L"
Special Condition "L" currently reads as follows:
T. In order to compensate for 0.0122 acre of permanent impacts to wetlands, 0.005 acre of temporary
impacts to wetlands, 868 linear feet of permanent impacts to streams, and 220 linear feet of temporary
impacts to streams the permitee shall make payment to the North Carolina Ecosystem Enhancement
Program (NCEEP) in the amount determined by the NCEEP, sufficient to perform the restoration of
0.214 acre of non - riparian wetland and 868 linear feet of warm water stream in the Neuse River Basin,
Cataloging Unit 03020201.
Previously Approved
Proposed Modification
Permanent: 150
Permanent: 108
Stream linear feet):
Temporary: 20
Temporary: 0
Zone 1: 8,950
Zone 1: 6,010
Riparian Buffer (square feet):
Zone 2: 4,192 1
Zone 2: 3,480
Special Condition "L"
Special Condition "L" currently reads as follows:
T. In order to compensate for 0.0122 acre of permanent impacts to wetlands, 0.005 acre of temporary
impacts to wetlands, 868 linear feet of permanent impacts to streams, and 220 linear feet of temporary
impacts to streams the permitee shall make payment to the North Carolina Ecosystem Enhancement
Program (NCEEP) in the amount determined by the NCEEP, sufficient to perform the restoration of
0.214 acre of non - riparian wetland and 868 linear feet of warm water stream in the Neuse River Basin,
Cataloging Unit 03020201.

Construction within jurisdictional areas on the property shall begin only after the permittee has made
payments per the below mitigation table to the NC EEP and provided a written confirmation the Corps
that it agrees to accept responsibility for the mitigation work required, in compliance with the MOU
between the North Carolina Department of Environment and Natural Resources and the United States
Army Corps of Engineers, Wilmington District, dated November 4, 1998.
The Applicant will make phase mitigation payments to the NCEEP as listed in the table below. The cost
of credits will be the current price at the time of payment, not the current price at the time the permit was
issued. No work on any phase of the project shall begin until the payment for that phase has been
issued to the NCEEP.
Phase
Previously
Required
Currently
Required
Construction/Mitigation
Number
Impact Areas
Mitigation Required
Payment Deadline
1
1
150 LF of stream
12/31/12
2
2
115 LF of stream
12/31/2015
3
98 LF of stream & 0.019 acres of
wetland (All wetland mitigation paid
5, 12, 18 and 19
under the EEP ) Y. acre minimum
12/31/2019
4
3
150 LF of stream
12/31/2021
5
6, 7, 8, 13 and
14
295 LF of stream
12/31/2025
6
60 LF of stream & 0.007 acres of
11 16 and 17 1
wetland wetland paid with phase 3
12/31/2027
7
1
0.096 acres of wetland (wetland paid
9 and 10
with phase 3
12/31/2029
In an effort to follow current mitigation policies, the Permittee has authorized us to contact private
mitigation banks. Agreements have been made with the sponsor of the Neu -Con Stream
Umbrella Mitigation Bank, Environmental Banc & Exchange (EBX), as outlined in the table below
and attached reservation letter.
Please send us confirmation that this proposal to-reduce impacts and to pay into the Neu -Con
Umbrella Mitigation Bank vs. the NC Ecosystem Enhancement Program is acceptable. In
addition, please consider a new construction /mitigation payment deadline for Phase 1 of June 30,
2013 to accommodate this request. We understand that both will require written confirmation of
this modification to the permit conditions. We appreciate your assistance in this matter.
Sincerely,
Soil & Environmental Consultants, PA
Deborah Edwards
Attachments:
1) Crossing #1 Detailed Site Plan
2) Revised Overall Site Plan
3) EBX Reservation letter
4) Diffuse Flow Calculations, Supplement Forms and O &M Agreements
5) Crossing #1 Runoff Map
6) DWG Application fee $240
Previously
Required
Currently
Required
Neu -Con
Umbrella
Stream
150 linear feet
108 linear feet
108 units
Please send us confirmation that this proposal to-reduce impacts and to pay into the Neu -Con
Umbrella Mitigation Bank vs. the NC Ecosystem Enhancement Program is acceptable. In
addition, please consider a new construction /mitigation payment deadline for Phase 1 of June 30,
2013 to accommodate this request. We understand that both will require written confirmation of
this modification to the permit conditions. We appreciate your assistance in this matter.
Sincerely,
Soil & Environmental Consultants, PA
Deborah Edwards
Attachments:
1) Crossing #1 Detailed Site Plan
2) Revised Overall Site Plan
3) EBX Reservation letter
4) Diffuse Flow Calculations, Supplement Forms and O &M Agreements
5) Crossing #1 Runoff Map
6) DWG Application fee $240

A_ — — — PROPOSED PETUOT
ORIGWAL
— — — — — — — — �— IEIIPORARY STREAM A IPACIS 0 LF 20 LF
------------
— — PERMANENT STREAM NPACTS 108 LF 130 LF
ZONE 1 BUFFER IMPACTS AM SF 4950 SF
ZONE 2 BUFFER IMPACTS 4480 SF 4192 SF
�I yEI dP Mp•EAs'T' ov
257 p 1 _ rte/ 9PCS R'4!Q'`Q
W& MARAR 14(�Yl
jjjpAAGT
291 FtA
mr
oml
fuRp
- -_ fir -- _ -; v �•'``, 2 �/ / /'
LONG PR ADE% �\% — _
ESL s — es
RE 0
ve
FLOWERS PLANTA77ON CROSSING #1 (SCALE: 1 " = 50 )
STOCKS ENGINEERING, P.A. FLOWERS CROSSINGS PERMITTING
JOHNSTON COUNTY, N.C.
1100 EASTERN AVENUE PHONE: [phone] CROSSING #1 - DETAILED SITE PLAN
P.O. BOX 1108 FAX [phone] OCTOBER 30, 2012
NASHVILLE. N.C. 27856 MOBILE: [phone] C -01A

AC!,
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THE ®O
VILLAGE • • •
SCALE: 1" fff • • ••
HILLSBOROUGH
f fff p .G
FEWSED 11106112

Forrest Creek Stream Mitigation Bank
Neu -Con Stream Umbrella Mitigation Bank
Statement of Availability December 12, 2012
NC Division of Water Quality U.S. Army Corps of Engineers
Ms. Katie Merritt/Mr. Eric Kulz Mr. Monti Matthews
512 N. Salisbury St., Raleigh, CESAW -RG -R
9th floor Raleigh Regulatory Field Office
NC 27604, Archdale Building 3331 Heritage Trade Center, Suite 105
Wake Forest, NC 27587
Re Project:
This document confirms that River Dell Company. (Applicant) for the Village at Flowers
Plantation- Crossing #1 project has expressed an interest to utilize 108 Linear Feet of Stream
Mitigation Units (SMUT from EBX sponsored Forrest Creek Stream Mitigation Bank or Neu -Con
Stream Umbrella Mitigation Bank in Neuse HUC 03020201. As the Bank sites official Sponsor,
EBX, attests to the fact that mitigation is available for consumption at this time.
Banker will notify applicant if the 108 SMU become considered "At Risk" of not being available
prior to permit issuance. Credits are not considered secured until payment in full is received
from the applicant resulting in the issuance of an Affidavit of Sale by the bank acknowledging
that the applicant has fully secured credits from the bank and the Banker has accepted full
responsibility for the mitigation obligation requiring the credits /units.
The Banker will issue the Affidavit of Sale within ten (10) days of receipt of the balance of the
Purchase Price. Banker shall provide to Applicant with a copy of the Affidavit of Sale and a
documented copy of the debit of credits from the Bank Official Credit Ledger(s) showing the
permit number and the resource type secured by the applicant. A copy of the Affidavit of Sale,
with an updated Official Credit Ledger will also be sent to regulatory agencies showing the
proper documentation.
If any questions need to be answered, please contact me at 239 - 872 -1678
Best Regards
^4. ate...
Matthew R. Fisher
EBX -EM, LLC
909 Capability Drive Suite 3100. Raleigh, NC 27606

Flowers Plantation
C
rossing #1
Level Spreader CaIcs
Owner/Develo or:
Rebecca Flowers
4880 NC 425
Clayton, NC 27520
Contact: Rebecca Flowers
Phone: [phone]
AIL
STOCKS ENGINEERING
1 r � fqa
i T
f*A .
1100 Eastern Avenue Phone: [phone]
PO Box 1108 Fax: [phone]
Nashville, NC 27856 Mobile: [phone]
Email: [e-mail]

Stocks Engineering, P.A.
1100 Eastern Avenue
PO Box 1108
Nashville, NC 27868
Project: Flowers Village Blvd
Date: October 10, 2012
Page: I of 1
-. i* ; =
Is.. =; B �' C IMMUN
Post - Development
UEMI-
Runoff Computations
1 Inch Storm
10 -Year Storm

ASIA
NcuE+rt
Project name
Contact name
Phone number
Date
Drainage area number
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out; printed, fnidal&A and submitted.
Flowers
Kevin Vr
252.459.8196
October 25, 2012
I
0* WArF,?
' O
D
'�'_ '.`��,'. s^ >.o Sn�S,..,+ara =, htr�' t�
lsiYfFti arsS:�`a°
The purpose l Diffuse Flow
Stommater enters LS-VFS from The drainage am
Type of VFS Engineered I:: aopc
Expanaton of any'OW responses above
K StomwmW Enders the LS-VFS from the Drainage Area
Drainage area
impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 Whrsbrn
Time of concentration
Rainfall Intensity,10 -yr storm
Peak flow from the 10-yr storm
Design storm
Maximum amount of flow directed to the LS-VFS
Is a Now bypass system going to be used?
Explanation of any'Ofher' responses above
If Stormwater Enders the LS-VFS from a BMP
Type of BMP
Peak discharge from the BMP du ft ffre design On
Peak discharge from the BMP during the 10-year storm
Maximum capacity of a 1004cot long LS-VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 40W responses above
7,841
OF
3,920
f?
49.99
%
0.85
0.12
cis
5.00
min
7.38
IrAr
0.86
ds
10-year storm
0.88
cis
N
(Y or N)
Pick one:
cis
Do not compete this section of the form.
cis Do not complete this section of die form.
10 cis
cis Do not complete this section of the torn.
(Y or N)
Form SW401 - LS -VFS - Mune2012 - Rev.10 papa 1 of 3

LS-VFS Design
Forebay surface area
Depth of forebay at stom m* entry pard
Depth of forebay at storm water exit p*t
Feet of level Bp needed per ch
Computed minknum WO of the level 8p needed
Length of level up provided
Width of VFS
Elevation at downslope base of level tip
Elevation at the end of the VFS that is tadhed from the LS
Slope (from level tip 10 the end of the VFS)
Are any draws present In the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design lit applicable)
Is a bypass system provided?
Is there an engineered flow spying devloe?
Olmensbns of the channel (see diagram below):
M
B
W
y (flow depth for 10-yearstwm)
freeboard (durkhg the 10-year stoma)
Peak velocky in the channel dud% the 10-yr storm
Channel Ming material
Does the bypass disduge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any'Other responses above
80
still
Foreeay Is adeWa* sized.
12
to
12
In
Depth Is appropriate.
10
Mrs
9
ft
Ten feet is the minimum level spreader WO.
10
It
90
ft
257.20
fhtwi
254.90
fmsl
7.67
%
N
(Y or N)
OK
N
(Y or N)
N (Y or N)
N (Y or N)
ft
it
ft
ft
ft
Mac
Pick one:
W
tYaM
(YaM
i a �
Form SW401- LS-VFS - 29Jhme2012 - Rev. 10 page 2 of 3

III. REQUIREVfrEMS CHECfSM _
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. M incomplete submittal package will
result in a request for additional Information. This will delay final review and approval of the project. inflial 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.
Requded Item:
1. Plans (1' - W or larger) of the entire site showing:
- Design at ultimate bulld-out
Ofkfte drainage (If applicable),
Delineated drainage basins (include Rational C coefficient ient per basin),
- Forebay (fl apple),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and pubs right of way (ROW), and
- Boundaries of drainage easement
2. Plan detail (1' = 31Y or larger) for the level spreader showing:
- Forebay (If applicable),
- High flaw bypass system,
- One toot topo lines between the level fry and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build-out.
3. Section view of the level spreader (1' = 21Y or larger) showing:
- Underdrain system (if applicable),
- Level tip,
- Upslope channel, and
Downslope fitter fabric
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non-engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0" agreemenL
Initials Page or plan sheet number and any notes:
1PV I V -0joFF t k 4r?
C. -01A
-W I C. -OlA
Form SW401 - LS-VFS - Mune2012 - Rev 10 page 3 of 3
1r.wl
C -nIC
Tl,✓
C -Ole
A�
�/
C 9z►L S
Form SW401 - LS-VFS - Mune2012 - Rev 10 page 3 of 3

Of WAT4
0
ATA
MCDENR o <
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This form must be completely filled out printed, initialed and submitted
Project name Fbwers Plantation Crossing /1
Contact name Kevin Vamell
Phone number 252459.8196
Date OCtoW 25, 2012
y}D'ranage area number
The purpose of the LS-VFS Buffer Rule: Dilluse Flour
Stormarater enders LS-VFS from The drainage area
Type of VFS Engineered flier strip (graded & sodded, slope < 8%)
Explanation of any'Otrer responses above
If Stommreter Enters the LS-VFS from the Drainage Area
Drainage area
Impeftus surge area
Percent impervious
Rational C coefficient
Peak low from the 1 [Or storm
Time of concentration
Relnfd Interh*,10- yrstorm
Peak flow from the 10-yr storm
Design storm
Maximum amount of flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any'Other' responses above
231,304 if
62A52
fe
27.00
%
OS1
271
cis
5.00
min
7.38
irdhr
19.99
CIS
1 Inch/ hour storm
2.71 CIS
Y (Y or N)
If Stonnwater Enters the LS•VFS from a BMP Do not complete this section of the form.
Type of BMP Pick one:
Peak disrlharge from the BMP during the destn storm cis
Peak discharge from the BMP during the 10 -rear storm era Do not complete this section of the form.
Maximum capacity of a 100 -foot long LS -VFS 10 cis
Peak flow directed to the LS-VFS cis Do not complete this section of the form
Is a flaw bypass system going to be used? (Y or N)
Explanation of anry'Other responses above
Farm SW401 - LS-VFS - 293une2012 - Rev.10 page 1 of 3

LS-VFS Design
Forebay surlace area
Depth of frebay at slorn water entry point
Depth of forebay at stomwvatcr exit point
Feet of level Up needed per cis
Computed minimum length of the level Ip need
Length of level Ip provided
Width of VFS
Elevation at dwrnslope base of level lip
Elevation at the end of the VFS that Is farthest from the LS
Slope (from level Up to the end of the VFS)
Are any draws present In the VFS?
Is there a collector Swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass systern Provided?
Is there an engineered flow sppdng devbe?
Dimensions of the channel (see diagram below):
M
8
W
Y (flow depth for 10 -year storm)
freeboard (during the 1011 storm)
Peak velocity In the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the dhannal enter the stream at an angle?
Explanation of any'OdW resporses above
240 sq ft Forebay Is adequately sized.
12
to
12
In Depth Is appropriate.
10
ftkb
27
It
30
It
30
ft
25200
MW
249.60
fmsl
7.99
%
N
(Y or N) OK
N
(Y or N)
(Y or 14
(Y or N) Please provide plan delays of Ilow sputa & supporting caps.
200
it
0.00
It
9.60
It
1.40
It
1.00
R
4.07
NOW
PjP -MP
N
(Y or N)
Y
(Y or N)
W
i B i
Forth SW401 - LS-VFS - 28June2012 - Rev. 10 papa 2 of 3

EDIT Please indicate the page or plan sheet numbers when: the supporting documentation can be found. M 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 N the applicant has designated an agent, the agent may initial below. If a requirement has not been
met, attach juetMication.
Requrled Item:
1. Plans (1' - MY or larger) of the entire site showing:
- Design at ultimate build -out,
- O"te drainage (If applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Feebay (d applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement
2 Plan details (1'= 39 or larger) for the level spreader showing:
- Forebay (If applicable),
- High flow bypass system,
- One toot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate bud out.
3. Secction view of the level spreader (1' = 2(F or larger) showing:
- Underdrain system (g applicable),
. Level Up,
- Upslope channel, and
- Downslope fifter fabdc.
4. Plan details of the flow spbng device and supporting caloWallons (If applicable).
S. A oDm#uction sequence that shows how the level spreader will be protected from
sediment unlit the entire drainage area is stabilized.
6. If a non-engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (O&M agreement
Initials Page or plan sheet number and any notes:
QuWotrF- M 9 o
C -01 A
C- -01 AI
C -01C
-W"—
C -01C.
JKIJ
C -OiC
TAI
C -o1e
tiq
C Otl.c. S
. _
S& E O 4 M
Form SW401- LS-VFS - Mune2012 - Rev. 10 page 3 of 3

Qec Ft CF C ea- c Cj (_ fin c,,.-S LS — Z-
a
= D.� (0,79 ZC3Z.z�Cl.ss /3
0.4-7 33.27
Z.") I eFs
j�to,�S Cftdss <.JG +� 1
C,,, =a.(,Pd
A = 0.19 sF
g = 32.2 FT /S 2
Ara -= I.ss7- Fr
�• /" *Fc.ocj —m c..s -2 is -z.-)l eFs
i

Channel Report
Hydraflow Express by InWisdve
LS -2 Weir
Q (cfs)
Rectangular
Area (sgft)
Botom Width (ft)
= 3.00
Total Depth (ft)
= 1.25
Invert Elev (ft)
= 253.55
Slope ( %)
= 7.00
N -Value
= 0.065
Calculations
Compute by:
Known Q
Known Q (cfs)
= 17.28
Elev (ft)
255.00 --1
254.50
254.00
253.50
253.00
3 • .5 1 1.5
Section
2
Reach (ft)
Thursday, Oct 25 2012
Highlighted
Depth (ft)
= 1.24
Q (cfs)
= 17.28
Area (sgft)
= 3.72
Velocity (ft/s)
= 4.65
Wetted Perim (ft)
= 5.48
Crit Depth, Yc (ft)
= 1.02
Top Width (ft)
= 3.00
EGL (ft)
= 1.58
2.5 3 3.5
Depth (ft)
1.45
0.95
0.45
-0.05
'-- -0.55
4

Channel Report
Hydratlow Express by Intsllsohm Thursday, Oct 25 2012
LS -2 Rip Rap Bypass Channel
Triangular
Highlighted
Side Slopes (z:1)
= 2.00, 2.00
Depth (ft)
= 1.40
Total Depth (ft)
= 2.40
Q (cfs)
= 17.28
Area (sgft)
= 3.92
Invert Elev (ft)
= 253.25
Velocity (ft/s)
= 4.41
Slope ( %)
= 7.00
Wetted Perim (ft)
= 6.26
N -Value
= 0.065
Crit Depth, Yc (ft)
= 1.36
Top Width (ft)
= 5.60
Calculations
EGL (ft)
= 1.70
Compute by:
Known Q
Known Q (cfs)
= 17.28
Elev (ft) Section
256.00
255.50
255.00
254.50
254.00
253.50
253.00
252.50
0 1 2 3 4 5 6 7 8 9 10 11 12
Reach (ft)
Depth (ft)
2.75
2.25
1.75
1.25
0.75
0.25
-0.25
R{i11:1

. - ~ _ 9PA@T TABLE
0261A W SNI EW AfPAC1S 0 !r YO fl
POWAAENr SWAN AVACIS rw !f f50 Lr
zow 1 ALP7t, R 8fRAC1S 4010 sr am Sr
A- Afm mr"ls 44W.7 41M sr
BLOW
�B 4P^RAP
owl
•00 . p ABRAFI 140V
.00 al
OVACT�� P• iii , / fJ � - .r••�...�.-
-3 � r �•.'� ' � �` wiz` -��?3 ;.,:... _ _- _ �l ll•i; //,
X5 ON' /l/.
LET
dF
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FLOWERS PLANTA 710N CROSSING #1 (SCALE: 1 " = 50)
STOCKS ENGINEERING P.A. FLOWERS CROSSINGS PERMImNG
JOHNSTON COUNTY, N.C.
1100 EAS11M AVENUE PHONE, [phone] CROSSING #1 - DETAILED SITE PLAN
P.O. 27856 MOBILE: [phone] OCTOBER 30, 2012
C -01A

FLOWERS PLANTATION CROSSING #1 (N. T.S)
�_ 15' - - �- -- - 20' - 1 5'
I2' ASPHALT a
1=- 111= llfi =Ii�Ill COMPACTED
'';U
KEYS Id TYPICAL RETAININt
FtETAJM r WALL
WALL
52 LF ./
�jp-E j7
y! I
I STOCKS ENGINEERING, P.A.
1100 EASTERN AVENUE
P.O. BOX 1108
NASHVILLE. N.C. 27856
PHONE: [phone]
FAX: [phone]
MOBILE: [phone]
FLOWERS CROSSINGS PERMITTING
41OHNSTON COUNTY, N.C.
CROSSING #1 - DETAILED SITE PLAN
OCTOBER 30, 2012
C -01 B

TOP 254 w
u• oRTFTw � szoo
— NR.HID swag
WEIR @ 8155
TOP 254M TOP 254
LS -1 FLOW SPUTTER DETAIL
SCALE: N.T.S.
057 STONE ON
FILTER FAM
DWQ LEVEL SPREADER DETAIL
SPREADER LIP
..
.•. -. -.•.
N.T.S. REINFORCED '
CKANNEL
CONCRETE LEVEL ;; ;; ;; ;; ;; ;; ;; ;; ; ; ; ;• •
9 STONE Oc -. • ;. STW •. ;
/FILTER FABRIC STRIP
'(FESCUE SOD)
3'
B �I
REWORM
CHANNEL
ir DEEP SECTION A -A LEVEL
SPREADER
UP
LEVEL SPREADER CONSTRUCTION SEQUENCE
1. IMMEDIATELY BEFORE BEGINNING CONSTRUCTION CONTACT EMNEER TO VERIFY
THAT THE FAD GROUND CONTOURS ARE APPROX. PARALLEL TO THE LS
LOCATION CALLED FOR ON THE PLANS
2 USING A SMALL EXCAVATOR. CONSTRUCT A LARGE RECTANGULAR HOLE TO A
DEPTH OF 1 FT OR AS DEFIED FOR THE BLIND SWALE.
& BEGIN CONSTRUCTION OF LEVEL SPREADER ON UNDISTURBED SOIL lF POSSIBLE.
LF CONSTRUCTED ON FILL, COMPACT TO 95X STANDARD PROCTOR. CONCRETE
FORMS SHALL BE APPROX. r H 040 THAN THE DOWNSL.OPE GROUND TO
ALLOW FOR DIFFUSE FLAW. POUR CONCRETE TO TOP OF FORD. ENSURE UP
IS PERFECTLY LEVEL LET CONCRETE SET OVERNIGHT AND REMOVE FORMS
4. BEGIN BACNLFUIING AROUND LEVEL SPREADER AND REINFORCE THE CHANNEL.
5. CONSTRUCT FOREBAY.
L INSTALL FLOW SPUTIEHL
7. SEED, STRAW AND TACK ALL DMURBED AREAS DBLEDIATLEY UPON COMPLETION.
VEGETATED FILTER STRIP NOTES
FILTER STRIP PERFECKY
LEVEL FROM ONE SIDE TO
THE o7m
1. FOR AN EFFT:CnVE VFS. IT IS ESSEIMAL TO PREPARE THE SOILS PROPERLY AND
MAINTAIN A DENSE. VIGOROUS STAND OF TURF
Z THE SIDE SLOPES CWA70 BY ANY GRADING SHOULD RECEIVE THE SAME ATTDnION
TO SOILS AND VEGETATION AS THE VFTL
3 AT A MINIMUM, THE WS AND ANY SIDE SLOPES SHOULD BE COVERED WITH SIX
INCHES OF TOP90R.
4. A ONE -TIME FERWZER APPUCATION 10 THE TOPSOIL SHOULD BE PLACED AT A RATE
OF 75 LOS/100D SF AGRICULTURAL GRADE LIME AND 50 LBS/1000 SF OF 5/10/10
FERTILLZE L
5. FESCUE SOD SHALL BE PLACED PER DETAIL
STOCKS ENGINEERING, P.A.
1100 EASTERN AVENUE PHONE: [phone]
P.O. BOX 1108 FAX: [phone]
NASHVILLE, N.C. 27856 MOBILE: [phone]
FLOWERS CROSSINGS PERM1 MNG
JOHNSTON COUNTY. N. C.
CROSSING #1 - LEVEL SPREADER DETAILS
OCTOBER 30, 2012
C -01 C

Permit Number.
(to be provided by DWQ)
Drainage Anew Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problem:
How I will remediate the problenu
The entire filter strip
Trash /debris is present.
Remove the trash/ debris.
"stem-
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clo ed.
of any sediment off-site.
The flow sputter device is
Make any necessary repairs or
damaged.
I
replace if damage is too large for
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problem:
How I will remediate the problem:
The Swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip,
settled, undercut, eroded or
otherwise dame
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it
water until it is established. Provide
lime and a one -time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslope of the level lip.
The bypass channel
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if appli cable .
approximately three to six inches.
Areas of bare soil and /or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabRize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
1
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919 - 733-1786.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
1 acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Flowers Plantation Crossing #1
BMP drainage area mtmber:I and II
Print name:Rebecca Flowers
Title :Owner
Address:4880 NC 42 E. Clayton, NC 27520
Date: !;-- -1 92 I y--
Note: The legally responsible party should not be a homeowners association unless more than 50°/a of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
CZO —A - , do hereby certify that
ersonally appeared before me this 00
day of QM/rI , cV and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
! Ann M. Flowers
l Notary Public
Johnston County, N
My Cammission Exolres
SEAL
My commission expires)9,61 '� �� °0 ,(.�
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 3 of 3