20050732 Ver 26_Stormwater Info_20130129

�IvFiCdvt &CREED
T° NCDENR - DWQ 401 Unit
512 N Salisbury Street
Archdale Building 911 Floor
Raleigh, NC 27604
ATT MON Ms. Annette Lucas
LETTER OF TRANSMTT'TAL
DATE- January 23, 2013
PMECTNQ 2735-0090
TAM?A> EXP
RE- Briar Chapel - Phase 7
TRANSMITTAL NO: 1
PAGE 1 OF 1
WE ARE SENDING: ❑ Originals ® Prints ❑ Shop Drawings ❑ Samples
❑ Specifications ® Calculations ❑ Other -
Quantity
Drawing No.
Rev.
Description
Status
2
Stormwater Design Plans
G
2
f
Narrative & Supporting Calculations
G
2
Level Spreader/Vegetated Filter Strip O&M Agreement (1
Original, 1 copy)
G
2
Level SpreaderNegetated Filter Strip Design Supplements
G
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review & Comments G. For Approval R See Remarks
REMARKS:
Annette,
Please find the enclosed documents for your review. Please let us know if you have any questions or
comments. Thank you.
1730 Vaasity Ddve, Stdte 500 Ral fSk NC 27606 919iD 4M Fax [phone]
Cc' McKIM & CREED, INC.
Signed
Gareth Avant, PE

DS -ol3al. U
401 NARRATIVE &
SUPPORTING CALCULATIONS
Briar Chapel Development
Phase 7
Chatham County, North Carolina
January 24, 2013
Prepared for:
BRIAR CHAPEL'S
by
Newland comm mm
NNP Briar Chapel, LLC
16 Windy Knoll Circle
Chapel Hill, North Carolina 27516
FnA��O�j�
JAN 292013
Prepared By:
V
v M &CREED
v
1730 Varsity Drive, Suite 500
Raleigh, North Carolina 27606
`0%%1111111,1111
.�`�`p�tH ,q,QOG %''
Phone: [phone]
Fax: [phone]C
`?:Q�osslp '1.y''�
036348
M&C Project No. 02735 -0090
� : OZ/24t201.3 .�
%qpf:• fNANE�.•yQ��:
�'�rr►nn m;%%%

-7
L
PROJECT DESCRIPTTON
The purpose of the project is to construct water, sewer and roadway infrastructure to support
166 residential lots within the Briar Chapel development. This will be the first of several phases of
' construction in this proximity.
Based on the conditions of the approved 401 Water Quality Certification, NCDENR -DWQ will
require runoff from the roads to be captured and treated for 85% TSS removal before being
' discharged into existing stream buffers. To meet this requirement, three temporary level
spreader /vegetative filter strips will be constructed at various points of discharge around the site.
In addition, a large portion of the runoff from this phase of construction will be directed to Wet
' Detention Pond # 12 as approved under the Great Ridge Parkway Extension project (DWQ
Project # 05 -0732v25) on January 14, 2013.
' Upon completion of the project's construction, the proposed public roads will be turned over to
and maintained by NCDOT.
SITE DESCRIPTION
' The project area is approximately 52.7 acres of disturbed area located within the BC South
development area, adjacent to Great Ridge Parkway and near the Margaret B Pollard Middle
School.
This portion of the development generally takes place on the north side of a ridge that bisects
' the site from north to south. The slopes in the site range from 5 -207o in localized areas.
SOILS
According to the Chatham County Generalized Soil Survey, the soils located on the site are
classified as Wedowee sandy loam, 2% to 15% slopes (WeB, WeC, WeD).
' The following soil descriptions are associated with the soils found on the site:
We(X) - Wedowee sandy loam soils are often found in piedmont uplands, along ridges
' and side slopes. Permeability is moderate and the soils are well drained. Soils have a low
shrink /swell potential. The seasonal high water is generally more than 6.0 feet below the
surface.
' LEVEL SPREADER /VEGETATIVE FILTER STRIP DESIGN
Level spreaders /vegetative filter strips will be used in areas where future development will
' commence in a reasonably short period of time and larger devices would be cumbersome to
site and build on a temporary basis. In addition, these devices will treat runoff from smaller
drainage areas and will accept smaller flows.
' Water quality flows were calculated using methods provided in the NC BMP Manual. For the
proposed engineered level spreader /vegetated filter strip devices, the runoff was determined
using a 1 in /hr rainfall. The outlet pipe to the level spreader was sized using the runoff. The
' overflow pipe for events larger than 1 in /hr was set at a higher outlet elevation to ensure that the
flows are kept separate.

MAINTENANCE CONSIDERATIONS
The property owner shall be responsible for periodic inspection and maintenance of all
temporary erosion control measures devices. Any measure that fails to function as intended
shall be repaired immediately.
1
1

le capitation Frequency Data Server
http: / /hdsc.nws.noaa.t ov /cyi- bin / hdsc/ buildout .perl?"e= idMunits= us&s...
POINT PRECIPITATION",
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
k4jo (Q�d
' CHAPEL HILL 2 W, NORTH CAROLINA (31 -1677) 35.9086 N 79.0794 W 462 feet
from "Preciprtamon- Frequency Atlas of the United States" NOAA Atlas 14, Volume 2, Version 3
G M Bonnet, D Martin, B Lm, T Parzybolr, M Yekta, and D Riley
' -- -- NOAA, National Weather Service, Silver Spnng, Maryland, 2004
Extracted Wed Jan 20 2010
F Confidence Limits Seasonality I Location Maps I Other Info. I GIS data Maps I Docs Retum to State Map
1
1
1
1
1
1
Precipitation Intensity Estimates (in/hr)
(yealrs)
[7n
min
min
I
n
0.54
0.31
a��
0.10
0.06
0.05
0.03
�Y
6156
0.02
F
6.62
5.07
min
2.22
1.62
0.99
0.60
0.34
0.19
0.11
0.07
�1
4.93
3.94
3.28
2.25
1.40 0.84
0.60
0.36
0.21
0.12 0.07
0.04
0.03
0.02 0.01
0.01
0.01
0.01
0
5.81
4.64
3.89
2.69
1.69
1.01
0.72
0.43
0.25 0.15
0.-6910
05
0.03
0.03
0.02
0.01
0.01
0.01
0
6.70
5.36
4.52
3.21
2.06
1.25
0.89
0.53
0.32
0.19
0.11
0.06
0.04
0.03
0.02
0.02
0.01
0.01
10
7.38
5.90
4.98
3.61
2.35
1.43
1.03
0.62
0.37
0.22
0.12
0.07
0.04
0.03
0.02
0.02
0.01
0.01
25
8.11
6.46
5.46 4.04
2.69
1.66
1.20
0.73
0.44
0.25
0.15
0.08
0.05 0.04
0.03 0.02 0.02
0.01
50
8.62
6.86
5.79 4.36
2.95
1.85
1.34
0.82
0.50
0.29
0.16
0.09
0.06
OF047
OF037
0.02
0.02
0.02
100
9.07
7.21
6.07 4.65
3.20
2.02
1.48
0.91
0.56
0.32
0.18
0.10
0.06
0.05
0.03
0.02
0.02
0.02
200
9.44
7.49
6.30 4.90
3.44 2.20
1.63 1.01
0.62
0.35
0.20
0.11 0.07
0.05 0.03
0.03 0.02
0.02
500
9.85
7.79
6.54
5.21
3.73
2.43
1.82 1.14
0.71
0.40
0.22
0.12
0.08
0.06 0.04
0.03 0.02
0.02
1000
10.19
8.02
6.71
5.43
3.96
2.62
1.98
1.24
0.78
0.43
0.24
0.13
0.08
0.06
0.04
0.03
0.02
0.02
These precipitation frequencyeshmatas are based on a partial duration series ARI is the Average Recummce Interval
Please refer to NOAAAtias 14 Documentfor more information. NOTE: Formatting forces estimates near mro b appear as zero.
7.48
6.31
4.75
3.22
2.02
1.47
0.89
0.54
0.31
0.17
0.10
0.06
0.05
0.03
0.02
0.02
0.02
17.85
6.62
5.07
3.49
2.22
1.62
0.99
0.60
0.34
0.19
0.11
0.07
0.05
0.03
0.02
0.02
0.02
The upper bound of the confidence interval at 90% confidence level is the value which 5% of the simulated quantile values for a given frequencyare greater than
•• These precipitation frequencyestimates are based on a partial duration series. ARI 6 the Average Recurrence Inteml
Please refer toNOAAAtlas14Document for more information NOTE Formatting prevents estimates near zaroto appear aszero
* Lower bound of the 90% confidence interval
Precipitation Intensity Estimates (in/hr) 7 10
t'years) min min min min min min hr hr hr hr hr day day day day day day day
L4 4 1/20/2010 8:55 AM

le cipitation Frequency Data Server
http: Hhdsc.nws.noaa.gpv /cy i- bin / hdsc / buildout .perl?gw --pf&units= us&se...
' POINT PRECIPITATION,
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
CHAPEL MULL 2 W, NORTH CAROLINA (31 -1677) 35.9086 N 79.0794 W 462 feet
from "Precipitation-Frequency Atlas of the United States" NOAA Adas 14, Vohm 2, Version 3
G M Bonna4 D Martin, B Linj Parzybok, M.Yekta, and D Riley
' NOAA, National Weather Service, Saver Sprig, Maryland, 2004
Extracted Tue Jan 19 2010
Confidence Limits I Seasonality Location Maps j Other Info. I GIS data i Maps I Dots I Retum to State Map
1
1
1
[--�i
1
1
Precipitation Frequency Estimates (inches)
(yealrs)
min
JJQ
n
nun
m n
2.22
2.73
3.14
�a�
2.83
3.50
3.34
4.15
3.82
4�
Fidu[27A1420,1
5.64
6.38
�Y
10.42
jW
15.68
[go
0.61
0.67
0.98
0
0.41
0.48
0.66 0.82 1.12
0.77 0.97 1.34
1.40
1.68
1.79
2.15
2.54
2.96
3.46
3.87
4.44
5.05
6.76
8.39
10.69
12.84
1.69
2.02
2.16
2.66
3.08
2.59
3.06
3.58
4.17
4.64
5.30
6.00
7.97
9.88
12.52
14.97
0
0.56
0.89
0.98
1.08
1.13 1.60
1.25 1.80
F136-]V021
2.06
2.49
3.20
3.80
4.47
5.17
5.71
6.44
7.21
9.41
11.47
14.32
16.89
10
25
50
0.61
0.68
0.72
2.35
2.87
3.71
4.44
5.17
5.95
6.54
7.34
8.15
10.56
12.72
15.72
18.37
2.69
3.33
3.61
ff
5.28
6.11
6.99
7.68
8.57
9.42
12.11
14.36
17.55
2028 .
1.14
1.45 2.18
2.95
3.70
4.04
4.92
5.99
6.86
7.81
8.57
9.54
10.43
13.34
15.62
18.95
21.72
100
200
0.76
1.20 1.52 2.33
1.25 1.57 2.45
3.20
4.05
4.46
4.89
5.47
6.03
6.71
7.47
7.62
8.64
9.49
10.53
11.44
14.57
16.87
20.31
23.11
0.79
3.44
4.40
8.41
9.49 10.44 11.56
12.47
15.83
18.12
21.67
24.46
500
0.82
1.30
1.64
.60
3.73
4.86
5.46
6.80
8.53
9.50
I 10.66
11.73
12.976F1-38
7
17.55
19.80
23.46
26.21
1000
0.85
1.34
1.68
2.72
3.96
5.23
5.93
7.44
9.43
10.35
11.58
12.76
14.06
14.97
18.89
21.09
24.83
27.53
'These precipitation tequency estimates are based on a partial duration senes. ARI is the Average Recurrence Interval.
Please refer tD NOAAAtias 14 Document for more mfonnation. NOTE: Formatting forces estimates near zero tD appear as zero.
* Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
hr day day day F2O
dears) �5Fi�] mm 71� min min lmin hr hr hr M24
day day day
�1 0.45 0.72 0.90 1.23 1.53 1.84 1.96 2.35 2.77 3.16 3.70 4.14 4.73 5.37 7.14 8.87 11.24 13.44
0
0.53
0.85
1.06
1.47
1.85
2.22
2.73
3.14
2.37
2.92
2.83
3.50
3.34
4.15
3.82
4.46
4.96
5.64
6.38
8.43
10.42
13.15
15.68
0
10
0.61
0.67
0.98
1.23
1.36
1.75
1.97
2.25
2.56
4.77
5.53
6.09
6.86
7.66
9.95
12.10
15.04
17.69
1.07
3.37
4.05
4.83
5.51
6.36
6.99
7.82
8.66
11.17
13.41
16.51
19.25
25 0.74
1.17 1.49
2.20 2.93
3.64
3.94
4.76
5.73
6.54
7.47
8.22
9.14
10.02 12.82 15.15 18.44
21.26
50
100
0.78
0.82
1.25
1.58 2.38
1.66 2.53
3.22
3.49
4.04
4.43
4.41
5.35
6.47
7.34
8.35
9.19
10.19
11.11
14.14
16.50
19.92
22.80
1.31
4.87
5.34
5.94 7.25
6.56 8.06
8.17
9.27
10.19
11.26
12.21
15.48
17.85
21.39
24.28
200 0.86
500 0.90
1.36
IF727
2.68
3.75
4.82
9.03
10.21
10.19
11.47
11.22
12.65
12.38
13.91
13.33
14.86
16.86
18.72
19.21 22.85 25.73
21.04 24.81 27.63
1.42
1.79
1.83
2.84 4FO87
2.97 4.34
5.32
5.96
7.39 9.20
1000 0.93
1.46
5.74
6.50
8.11 10.19
11.15
12.49
13.79
15.14
16.07 20.20 2.46 26.31 29.07
T ne upper bound ottne confidence interval at 917% confidence level is the talue which 5 %of the simulated quantle values fora given frequericyare greater than
" These precipitation frequency estimates are based on a partial duration senes ARI is the Average Recurrence Interval.
Please refer to NOAAAdas 14 Document for more information. NOT E Formatting prevents estimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches) [i
ymn n mml y n hr d Fdy (ears) m m day day da y I day 11 dal
Iof 4 1/19/2010 9:12 AM

1
1
1
1
1
1
MAPS

f � \
Al
fk
If
Al
1p u�
VK
ar �
y
�s
a
jjjj .d _ r

-
-
":
dC N✓eC
tVeO! a
s
W2
L/
WeE
-
UdC �p
+�Rr�r. , de&
NJ
A'
WeE .
VaB
HeO WeD
'
z -
W
-
WeR
J
` t,txs
WeD WeD
M
.. _.
WeB
Q,
�-•� VVM
WeC
`
m
i
l "!dC
NeB ` -
VaB
WeD
-
o
�m
WdC
NteC
j.
W %Alec
,t WeC
. f. WeB
VaB WeC
o
` V WeE
WeD
WeD
WdE „a ;
WeB
a
WeC
WdC
n
We8
_
WdC
..e
WeD
WeC
r
WeD
•s-
3967
�
► t
WeD
P�
VaB, =-
1721
_
350 50'00•"
WeC
wdc
�
vdoD
'
eC WeB
C
°
•
WaB
n
°o
WeC
,WeE
ChA
._.
�
e0
WeC
VVeD
WdC WeE
VaB
WdC
eEy.`.
♦
WeC
.,
y
Wd E
t
WeE
w �
WeD
i
WeB
WeC `
.�WdC
i
'
as 99
WeC
WeD
Bennett
WdC
Q
',P..
WeC
_
W
Mountain
VJeB
WeC
VleC
'...
WeD
T. .: ...
i
WeC
..r;
` 10
W.
1
NleB
.4
r
Wep
n ..
' ..
WdC
d
WeC WeB
-
VkE
W .
U
,
��`��
W
-
WdE W
?
JdC
+ r'ChA;' ME
-rfe6
WeE
WeC
WeC
VIeC
-
WeE
W"
"WeD
WeD
WeD
3988
NJeC
1 .
�0
VA
WeD WeC
VV
HeO
VaB
VaB
t? .WeB
i
Wee
WeC
�
Q�!
WdC
WeC
.,7
WeE
WeD
VJrB -
GkD
' (1)) -m WeC
WeC
W
VaB
s S28
�`
We/
WeB
CrC
6
WdE
m
n`
m
WdC
e
WeC WOE
C
WeD W P+
`\
WeC
ye � WeD
P
v..
CrB
h
X84
--
__

- E D
FUTURE BMP ------- ! �� _ BMP#12
S \ `` �."° -�.s ._.,_. al. _ - - BMP
F:1#
\ SECTION 6 —
1
11.3 AC _ - -
,; s
I■ /
1 raft SECTION 7 000
14.5 AC ,� 00 sr s c
u�` e 40 `� SECTION 1 G�PPR"v�Pye -. %! \_
o _
I o' -_ 4V* 38.6 AC
` J
FUTURE BMP #17 �� �' SECTION 2 PROPO ED
_ — - - -- 15.2 AC �. — TEMPORARY
___
SECTIONS LSNFS #4
FUTURE BMP #13 '� = DA = 3.5 AC
13.3 AC �` �' — ` - -- - - -- y LSNFS #4
(TO EX GRANITE MILL BLVD �'*"'t ��''� •• ... �. /' ----------- `� DRAINAGE AREA
BIORETENTION AREA) +�"► /� ,,,, �,� ,�„ ,,,, �,,,�, ;� = r BOUNDARY
" It --- - SNFS #3
LSNFS #2 DRAINAGE AR�AIBOUNDARY - - - -' DRAINAGE AREA
PROPOSED TEMPORARY LSNFS #2 J , �' , SECTION 3 I BOUNDARY
DRAINAGE AREA= 3.7 AC me �_ / // SECTION 4 w 13.5 AC PROPOSED
' I _ 27.4 Ac r TEMPORARY
FUTURE BMP #14 f
LSNFS #1 DRAINAGE ARE BOUNDARY r i I LSNFS #3
f ' - DA =5.6AC
PROPOSED TEMPORARY LSNFS #1� : l'
DRAINAGE AREA = 3.4 AC L w
� ICN EX. BIORETENT AREA
/' ----- - - - - --j
FUTURE BMP #15
— BRIAR CHAPEL pq Mqp
MFIRI &CRMD GREAT RIDGE PARKWAY EXTENSION
CHATHAM COUNTY, NORTH CAROLINA nu MAP 1
BRIAR CHAPEL'S
BC SOUTH DRAINAGE AREA MAP
m F121 Newland [OMMID1177E5 m FOR PERMIT ONLY -�1f

1
1
1
1
LS /VFS DESIGN

BRIAR CHAPEL - PHASE 7
STORM DRAINAGE DESIGN SUMMARY TABLE
Upmvn
UN09a030a
IINbwO
Doaw04wn
OowvbsnR6n
OoIm00U1an
Up1bIw0
f9sbw4
plan
Tad 193bm
w04
9V4 FOflew
Awnp
31ob
dwaM
aww
w0ta rt
woe.
fl444uon N
awn
w0.0w
eat Aw.1—
faa ell
Olu�rar
df
NI
want
I wW9Y.n
I fawlb
6751
/]6W
4M
47tH
fESiW
115D0
4Nl0
17196
.
0-000
011
tea
I=
750
=/
70.65
445
RCl
1. A13
Lr/Vi567
04301
15717
139W
.7.31
fES3W
IW-00
44070
40095
]6
-1
011
1]1
I=
179
71
7771
445
RC9
011
Ui/VK93
SDMN371
N7m
433A0
4N.tp
FES310
N]DO
437A0
N71J
11
OD31
hUAI
1!6
1.00
I.
I6
1671
566
IK9
OO1l
L;/ViS 63
0b351
MR
479M
/3057
Fm 50
4NDD
40910
43019
15
ODI7
039
Im
1A0
IA6
IS
]A6
411
RC3
OD13
Lams
Ob361
.117
N6b5
N]9I
fES360
450DD
N66S
N147
23
ODW
037
OL
IDO
OJ6
IS
6A3
351
RCI
OD13
WViSN

Permit Number: 05 073 7- V ?-40
(to be provided by DWQ)
Drainage Area 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 problem:
The entire filter strip
Trash/ debris is present.
Remove the trash /debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clo ed.
n sediment off -site.
The flow splitter device is
ke any necessary repairs or
damaged.
lace if damage is too large for
tre
air.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev.3 Page 1 of 3

BMP element:
Potential probleav
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 damaged.
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
downslo a 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 applicable).
a roximatel 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.
restabilize 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
Quality local Regional Office, or the
outlet. 1401
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)
I 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:Briar Chapel - Phase 7
BMP drainage area number: LS/VFS #2
Print name: Kevin Graham
Title: Vice President, Operations
Address: 16 Windy Knoll Circle, Chapel Hill, NC 27516
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, OL44 a Notary Public for the State of
M- C [�cu o Zc,, , County of �{�c /za,Y , do hereby certify that
.e.aA personally appeared before me this
day of of and acknowledge the due execution of the
forgoing Cher strip, riparian buffer, and /or level spreader maintenance requirements.
Witness my hand and official seal,
/CV00wuounn,,,,4.
�4pTARY
3ipG PUBV
Ot
V29
Iq 511
SEAL
My commission expires JO OI
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev.3 Page 3 of 3

Permit Number:
(to be provided by DWQ)
Drainage Area 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 problem:
The entire filter strip
Trash /debris is present.
Remove the trash /debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clo ed.
n sediment off -site.
The flow splitter device is
ke any necessary repairs or
damaged.
lace if damage is too large for
tre
air.
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O &M -Rev.3 Page 1 of 3

BMP element:
Potential problenr
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 dama ed.
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
downslo a 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 applicable) .
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.
restabilize 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
Quality local Regional Office, or the
outlet. 1401
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)
I 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:Briar Chapel - Phase 7
BMP drainage area number: LS/VFS #2
Print name: Kevin Graham
Title: Vice President, Operations
Address: 16 Windy Knoll Circle, Chapel Hill, NC 27516
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, n/ OLA4 a Notary Public for the State of
Lt A- (��.t.o Zc�, a , County of c{Jc.c }1 a r+-- -� , do hereby certify that
_�, a���ti -a8, ar-►.� -� personally appeared before me this
day of o/ , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and /or level spreader maintenance requirements.
Witness my hand and official seal,
00 h�tiuuuunrywi
pTARY
s
O Pust—A'
anon
SEAL
My commission expires o80 Di
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev.3 Page 3 of 3

ATA
NWEHR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
This torn must be completely filled out printed, initialed, and submitted.
I. PROJECT INFORMATION
Project name Briar Chapel Development - Phase 7
Contact name Gareth Avant
Phone number
Date
Drainage area number
919.233.8091
January 23, 2013
#2
II. DESIGN INFORMATION
The purpose of the LS-VFS Pollutant removal: 40% TSS, 30% TN, 35% TP
Stomrwater enters LS-VFS from The drainage area
Type of VFS Engineered fitter strip (graded & sodded, slope < 8 %)
Explanation of any "Other' responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C ooefficieM
Peak flow from the 1 inthr stone
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 flow bypass system going to be used?
Explanation of any 'Other' responses above
If Stormwater Enters the LS -VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design stone
Peak discharge from the BMP during the 10-year storm
Maximum capacity of a 100 -foot long LS-VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any'Olher• responses above
LS -VFS Design
Forebay surface area
Depth of forebay at stom water entry point
Depth of forebay at stormwater exit point
Feet of level hp needed per cfs
Computed minimum length of the level lip needed
163,077 fe
47,505 f?
29.13 %
0.69
2.58 CIS
5.00 min
7.38 inthr
19.06 cis
1 inchthour storm
2.5 ds
Y (Y or N)
Do not complete this section of the form
Pick one:
cls
CIS Do not complete this section of the form.
10 cfs
ds Do not complete this section of the form.
(Y or N)
400 sq It
24 in
10 fticfs
25 It
Forebay is adequately sized
Depth is appropriate
Depth is appropnate
f Op W ATFq G
O
o �
Form SW401 - LS-VFS - 29Nov2010 - Rev 8 page 1 of 3

Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is then: a collector swale at the end of the VFS?
Bypass System Design (f applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
W
y (flow depth for 10 -year stone)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other' responses above
50
ft
30
It
469.25
fmsl
467.75
fmsl
5.00
%
N
(Y or N)
N
(Y or N)
Y
(Y or N)
Y
(Y or N)
Existing Channel It
It
It
ft
It
18.24
ft/sec
Pick one:
N (Y or N)
Y (Y or N)
L +l
OK
Please provide plan details of flow splitter & supporting calcs.
♦ B
III. REQUIRED ITEMS CHECKLIST
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. 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.
Requried Item:
1. Plans (1"- 50' or larger) of the entire site showing:
- Design at ultimate build-out,
Off -site drainage (If applicable),
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
Form SW401 - LS-VFS - 29Nov2010 - Rev.8 page 2 of 3

2. Plan details (1' = W or larger) for the level spreader showing:
- Forebay (f 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
3. Section view of the level spreader (1' = 2(Y or larger) showing,
- Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction lion 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 (O&M) agreement
GCA
D4.1
GCA
D4.1
D4.1
GCA
C3.2 -C3.3
NIA
GCA
Narrative & calculations booklet
GCA
Included
Forfn SW401 - LS-VFS - 29Nov2010 - Rev.8 page 3 of 3

ATA
OF W ATF9
fe
Impervious surface area
HWENR
fe
Percent impervious
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
%
401 CERTIFICATION APPLICATION FORM
LEVEL
SPREADER - VEGETATED FILTER STRIP (LS -VFS) SUPPLEMENT
Peak flow from the 1 inthr storm
This form must be completely filled out, printed, initialed, and submitted.
I. PROJECT INFORMATION
Project name
Briar Chapel Development - Phase 7
Contact name
Gareth Avant
Phone number
919.233.8091
Date
January 23, 2013
Drainage area number
#2
II. DESIGN INFORMATION
The purpose of the LS-VFS
Pollutant removal: 40% TSS, 30% TN, 35% TP
Stomrwater enters LS-VFS from
The drainage area
Type of VFS
Engineered finer strip (graded & sodded, slope < 8 %)
Explanation of any "Other' responses above
If Stormwater Enters the LS -VFS from the Drainage Area
Drainage area
163,077
fe
Impervious surface area
47,505
fe
Percent impervious
29.13
%
Rational C coefficient
0.69
Peak flow from the 1 inthr storm
2.58
CIS
Time of concentration 5.00 min
Rainfall intensity, I D-yr storm 7.38 inthr
Peak flow from the 10-yr storm 19.06 cfs
Design storm 1 inchlhour stone
Maximum amount of flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 'Other' responses above
If Stormwater Enters the LS -VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10 -year storm
Maximum capacity of a 100 -foot tong LS -VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 'Other responses above
LS -VFS Design
Forebay surface area
Depth of forebay at stornwater entry point
Depth of forebay at stomnlrater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
2.5 crs
Y (Y or N)
Do not complete this section of the font.
Pick one:
cis
cis Do not complete this section of the form.
10 cfs
crs Do not complete this section of the form.
(Y or N)
400
sq It
24
in
6
in
10
fticfs
25
ft
Forebay is adequately sized
Depth is appropnate
Depth is appropriate.
Form SW401 - LS-VFS - 29Nov2010 - Rev 8 page 1 of 3

Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip 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 (d applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
W
y (flow depth for 10 -year storm)
freeboard (during the 10 -year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any 'Other' responses above
50
It
30
ft
469.25
fmsl
467.75
fmsl
5.00
%
N
(Y or N) OK
N
(Y or N)
(Y or N)
(Y or N)
Existing Channel it
It
18.24 fl/sec
Pick one:
N (Y or N)
Y (Y or N)
Please provide plan details of flow splitter & supporting calcs.
No I
B i
III. REQUIRED ITEMS CHECKLIST
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. 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.
Requried Item:
1. Plans (1' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
Off -site drainage (if applicable),
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.
Form SW401- LS-VFS - 29Nov2010 - Rev a page 2 of 3

2. Plan details (1' = XY or larger) for the level spreader showing: GCA
- Forebay (if applicable),
High flo w bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement and
Design at ultimate build-out
3. Section view of the level spreader (1' = 2(Y or larger) showing: GCA
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter 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 GCA
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. GCA
8. A copy of the signed and notarized operation and maintenance (O &M) agreement GCA
D4.1
D4.1
D4.1
C3.2 -C3.3
NIA
Narrative & calculations booklet
Included
Form SW401 - LS-VFS - 29Nov2010 - Rev 8 page 3 of 3

// // / \ \ RIPRAP OUTLET PROTECTION GENERAL NOTES; LIMITS OF DISTURBANCE NOTES: STORM DRAINAGE NOTES:
f l l { \ ®/ l 1 ®\ \s® ® ® �� (! �\ CLASS A RIPRAP 7'Lx4'Wx12 "D 11. REFER TO SHEET D -2.2 FOR PROPOSED ROAD CROSS SECTION DETAILS AND
1 f / �S �� ® ® t 1. ALL DIMENSIONS ANI� GRADES SHOWN ON THE PLANS SHALL BE FIELD VERIFIED BY THE 1. SILT FENCE AND TREE PROTECTION FENCE LINES ALSO DELINEATE 1. STORM DRAINAGE PIPES SHALL BE:
C1 -285\ -_ - -- j.`� CONTRACTOR PRIOR TO CONSTRUCTION. CONTRACTOR SHALL NOTIFY OWNER IF ANY DISCREPANCIES PAVEMENT SCHEDULE. THE LIMITS OF DISTURBANCE. ALL SILT FENCING OR TREE
i l l( t -_ -- - - - - - -- ------ - - - - -- C1 -284 - - - -__
EXIST PRIOR TO CONSTRUCTION. NO ADDITIONAL COMPENSATION WILL BE PAID TO CONTRACTOR FOR PROTECTION FENCING SHALL BE INSTALLED INSIDE LIMITS OF RCP /CLASS III FOR STORM DRAINAGE INSIDE PUBLIC
ANY WORK DONE DUE TO DIMENSIONS OR GRADES SHOWN INCORRECTLY ON THESE PLANS IF SUCH 12. ALLEYS ARE LOCATED INSIDE 20' PRIVATE EASEMENTS. ALL OTHER STREETS WITHIN DISTURBANCE. RIGHT -OF -WAY OR CONNECTING INTO STRUCTURE INSIDE
f NOTIFICATION HAS NOT BEEN GIVEN. PHASE 7 ARE INSIDE 40' OR 50' PUBLIC RIGHT -OF -WAYS. PUBLIC RIGHT -OF -WAY IN ACCORDANCE WITH NCDOT
2. TOTAL DISTURBED AREA: 52.75 ACRES STANDARDS.
- O O \ y0y g e / _ ) - FES -195 ' 13. GRADED SLOPES STEEPER THAN 3:1 SHALL BE STABILIZED WITH CURLEX SINGLE NET A -2000 PVC FOR PRIVATE STORM LINES WITHIN PRIVATE
1I s (27d -B, 40 BucwW) 2. CONTRACTOR SHALL :NOTIFY 'NORTH CAROLINA ONE CALL AT 1- 800 -632 -4949 AT LEAST 48
k- i I HOURS PRIOR TO BEGINNING CONSTRUCTION OR EXCAVATION TO HAVE EXISTING UTILITIES LOCATED. (CURLEX I) MATTING BY AMERICAN EXCELSIOR COMPANY OR APPROVED EQUAL. ALLEYS. ALL STORM DRAINAGE CONSTRUCTION FOR A -2000
CONTRACTOR TO COiNTACT ANY LOCAL UTILITIES THAT PROVIDE THEIR OWN LOCATOR SERVICES PVC SHALL BE IN ACCORDANCE WITH PIPE MANUFACTURER'S
�" INDEPENDENT OF " NORTH CAROLINA ONE CALL ". 14. STREAM AND WETLAND LOCATIONS ARE BASED ON DELINEATIONS PROVIDED BY SOIL SELF INSPECTION NOTICE: SPECIFICATIONS. PIPE JOINTS SHALL BE WATERTIGHT PER
C/ -C1- 280 -� -'� -- -- - - - - -- - -- \ / RIPRAP OUTLET I AND ENVIRONMENTAL CONSULTANTS IN RALEIGH, NC - CONTACT SEAN CLARK AT ASTM D3212. PIPE AND FITTINGS SHALL BE INSTALLED PER
\ \ r ° 3. OVERHEAD ELECTRIC LINES MAY EXIST ON THE SITE. CONTRACTOR SHALL CONTACT DUKE POWER AT 919- 846 -5900. NOTIFICATION OF LAND RESOURCES SEDIMENT AND EROSION CONTROL AASHTO SECTION 30 AND AASHTO SECTION 12.
C1 -281 f' . `� PROTECTION
1 V A t ` F 11 `���- ( % (336) 634 -4633 PF'iIOR TO COMMENCING ANY ACTIVITY WITHIN 200 -FT OF DUKE POWER RIGHT OF SELF - INSPECTION PROGRAM
C1 -197 15. A PORTION OF THIS PROPERTY IS LOCATED IN SPECIAL FLOOD HAZARD AREA "AE" 2. ALL CONCRETE SHALL MEET A MINIMUM 3,000 PSI COMPRESSIVE
CI -282 I r ( WAY. AS SHOWN ON FEMA FIRM MAP #3710976500) DATED FEBRUARY 2, 2007. THE SEDIMENTATION POLLUTION CONTROL ACT WAS AMENDED IN ?.006 STRENGTH.
1 \ � s i 1 C1 -196 TO REQUIRE THAT PERSONS RESPONSIBLE FOR LAND- DISTURBING
TEMPORARY ' I I (,C1 -283 y10 (1 ; 4. PRIOR TO CONSTRUCTION, CONTRACTOR SHALL ARRANGE AND ATTEND A PRECONSTRUCTION ACTIVITIES INSPECT A PROJECT AFTER EACH PHASE OF THE PROJECT
/ ( f I 16. EXISTING INFRASTRUCTURE AS SHOWN MAY BE UNDER CONSTRUCTION AND SHALL BE 3. ALL PIPE IN STORM DRAIN STRUCTURES SHALL BE STRUCK EVEN
( ( ( \ \ CONSTRUCTION I ( r'J , \ I CONFERENCE WITH CHATHAM COUNTY, OWNER AND ENGINEER. TO MAKE SURE THAT THE APPROVED EROSION AND SEDIMENTATION
\ FIELD VERIFIED BY CONTRACTOR. REFER TO THE FOLLOWING BRIAR CHAPEL PLANS WITH INSIDE WALL.
ENTRANCE \ I k ` / ( I AND CONSTRUCTION BULLETINS FOR ADDITIONAL INFORMATION: CONTROL PLAN IS BEING FOLLOWED. RULES DETAILING THE
I -� f 5. EXISTING UTILITIES AND STRUCTURES SHOWN, BOTH UNDERGROUND AND ABOVE GROUND, ARE BASED DOCUMENTATION OF THESE INSPECTIONS TOOK EFFECT OCTOBER 1,
- I I 4. THE INTERIOR SURFACES OF ALL STORM DRAINAGE STRUCTURES
-r, ( / � ON BEST AVAILABLE RECORD DRAWINGS. 2010. THE SELF - INSPECTION PROGRAM IS SEPARATE FROM THE WEEKLY
-BRIAR CHAPEL PARKWAY AND BOULDER POINT DRIVE EXTENSION SEALED SHALL BE POINTED UP AND SMOOTHED TO AN ACCEPTABLE
� I I f \ JANUARY 1, 2012 SELF - MONITORING PROGRAM OF THE NPDES STORI»1WATER PERMIT FOR STANDARD USING MORTAR MIXED TO MANUFACTURER'S
6. SOIL UNDER BUILDINiE�S, PAVED AREAS AND WITHIN SLOPES GREATER THAN 3:1 (H: V) SHALL BE CONSTRUCTION ACTIVITIES. THE FOCUS OF THE SELF- INSPECTION
APPROVED, PLACED AND COMPACTED AS RECOMMENDED BY THE GEOTECHNICAL ENGINEER. THESE -GREAT RIDGE PARKWAY PLANS SEALED DECEMBER 19, 2012 SPECIFICATIONS.
-BC SOUTH CLEARING &GRUBBING PLANS SEALED JANUARY 16, 2013 REPORT IS THE INSTALLATION AND MAINTENANCE OF EROSION AND
\ ( I ) SOILS SHALL BE CO3;tIPACTED TO THE STANDARD PROCTOR MAXIMUM DRY DENSITY UNLESS SEDIMENTATION CONTROL MEASURES ACCORDING TO THE APPROVED
5. ALL BACKFILL SHALL BE NON- PLASTIC IN NATURE, FREE FROM
\ \ \ ( \ I J OTHERWISE RECOMMENDED BY THE GEOTECHNICAL ENGINEER. 17. BEFORE STARTING ANY CONSTRUCTION OF IMPROVEMENTS WITHIN ANY NCDOT PLAN. THE INSPECTIONS MUST BE CONDUCTED AFTER EACH PHASE OF ROOTS VEGETATION MATTER, WASTE CONSTRUCTION MATERIAL OR
STREET OR HIGHWAY RIGHT -OF -WAY, CONTACT NCDOT DISTRICT OFFICE AND OBTAIN THE PROJECT, AND CONTINUED UNTIL PERMANENT GROUND COVER IS '
1 s \ \ \ \ \ I 7. ALL GRADED AREAS SHALL BE SLOPED SUCH THAT NO AREAS OF STANDING WATER OCCUR AND ESTABLISHED IN ACCORDANCE WITH NCGS 113A -54.1 AND 15A NCAC OTHER OBJECTIONABLE MATERIAL. UTILIZED MATERIAL SHALL BE
ALL AREAS POSITIVELY DRAIN TO DRAINAGE STRUCTURES, SWALES OR STORMWATER MANAGEMENT ALL PERMITS AND ENCROACHMENTS AND KEEP COPIES ON CONSTRUCTION SITE AT CAPABLE OF BEING COMPACTED BY MECHANICAL MEANS AND SHALL
FACILITIES. ALL TIMES. ALSO CONTACT NCDOT DISTRICT OFFICE 24 HOURS IN ADVANCE BEFORE 48.0131. THE SELF- INSPECTION REPORT FORM IS AVAILABLE AS AN HAVE NO TENDENCY TO FLOW OR BEHAVE IN A PLASTIC MANNER
\ \ \ I EXCEL SPREADSHEET FROM
\ \ I I \ PLACING CURB AND GUTTER AT (336) 629 -1423. UNDER THE TAMPING BLOWS OR PROOF ROLLING.
f I \ HTTP: //WWW. DLR. ENR. STATE. NC. US /PAGES /SEDIMENTATION_NEW.HTML.
8. CONTRACTOR IS RESPONSIBLE FOR PROTECTION OF ALL PROPERTY CORNERS AND SHALL REPLACE IF YOU HAVE QUESTIONS OR CANNOT ACCESS THE FORM, PLEASE
ALL MARKERS REMO \JED IF DAMAGED DURING CONSTRUCTION. CONTACT THIS OFFICE AT (919) 791 -4200. 6. MATERIALS DEEMED AS UNSUITABLE FOR BACKFILL PURPOSES BY
THE OWNER'S REPRESENTATIVE SHALL BE REMOVED AND REPLACED
9. CONTRACTOR IS RESiPONSIBLE FOR ALL DEWATERING AS NECESSARY THROUGHOUT WITH SUITABLE MATERIAL.
CONSTRUCTION. 7. BACKFILLING OF TRENCHES SHALL BE ACCOMPLISHED IMMEDIATELY
\ / / EX. CB (BPD) AFTER PIPE IS LAID. THE FILL AROUND THE PIPE SHALL BE
10. CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL PERMIT CONDITIONS, MONITORING AND - \ THOROUGHLY COMPACTED TO 95% OF THE MAXIMUM DRY DENSITY
\ REPORTING REQUIRE�!IENTS. ' OESD 113A� \ \ \ \ OBTAINABLE WITH THE STANDARD PROCTOR TEST. THE TOP EIGHT
® �... ) WN16 7 L! _ ` /" 't �(` jl') I I / / / ( f / j" / / / / / \ \ (8) INCHES SHALL BE COMPACTED TO 100% STANDARD PROCTOR.
C1 -122 wow
\ c ®_ / -� a_ ,✓M� / f/ ( J I J �} / \\ \( ( I i k ( / fl Jf ,-C1 -214 / �\ \ 8. UNDER NO CIRCUMSTANCES SHALL WATER BE ALLOWED TO RISE IN
Cr -257 I I \ I , '� \\ \ \ k k / j I UNBACKFILLED TRENCHES AFTER PIPE HAS BEEN PLACED.
C1 -258 ICI -123 \ ---- - ~° -� --�- �"� \ DBL C1 -117 / C1 -113
C1 -259 I \ w = �=50 g5 1 I j ` �- 9. ALL FLARED END SECTIONS DISCHARGING INTO WATER QUALITY
CONSTRUCTION SEQUENCE: \�- ��-=�" 49 485 (� °_- PONDS WILL HAVE A CONCRETE PAD POURED UNDERNEATH THE
\ Cl_121 _ - - - r, - -- - - - _�-- �' FLARED END SECTION IN ACCORDANCE WITH PROVIDED
- _°_._ rr... --- - 7.. -.. - � �
1. THE INTENT OF THE CONSTRUCTION SEQUENCE IS TO PROVIDE THE \ I - - ° ? - - / t I - - CONSTRUCTION DETAILS.
CONTRACTOR WITH A GENERAL GUIDE FOR CONSTRUCTION PURPOSES. THIS I (�
SEQUENCE IS NOT INTENDED TO OUTLINE ALL CONSTRUCTION ACTIVITIES ON I \ \ \ \ r / C1 -118 10. RIM ELEVATIONS OF STORM DRAIN STRUCTURES SHALL BE FIELD
THIS PROJECT. I I I \ � / �C1 -120 / / L CI -119 A � VERIFIED.
\ I \ - - \- _\ \ Sao - f �o % goo / / / , ouB ww } `'1 I I j �o \ �h _
2. ALL EROSION CONTROL MEASURES SHALL BE CONSTRUCTED IN ACCORDANCE III yoy \ I \ 11. RIM ELEVATIONS FOR GRATE INLETS WITHIN ALLEYS SHALL MATCH
WITH THE CHATHAM COUNTY SOIL EROSION AND SEDIMENTATION CONTROL NITIAL LIFT OF BINDER COURSE. AT TIME OF FINAL SURFACE LIFT OF
i \ \ - / _ _ ( Cl- C1 -112 ASPHALT, CONTRACTOR SHALL RAISE GRATE INLET TOPS TO MATCH
ORDINANCE. ' \ \ \ \ �' _ - -•" " "'.,�.' - ' = -� -- -� � �- .�-_� -� -- s•-
- \ \ \ \ PHASE 7 L /M /TS % / / / �% f / / '� C1 -126 -� / C1 -116 1 FLUSH WITH FINAL SURFACE PAVEMENT ELEVATION.
3. ALL EROSION CONTROL MEASURES SHALL BE INSPECTED WE AND AFTER \ ` TPF \ i� OF DISTURBANCE �;;'1 -124
RAINFALL EVENTS. NEEDED REPAIRS SHALL BE MADE IMMEDIATELY. I \ } rl; / / / / / / / / / SILT FENCE (TYP.) / 1 / / _� / / / I / / ' - j / ° 12. STORM DRAINAGE WITHIN PRIVATE EASEMENTS TO BE OWNED,
,50 "0 / X96 f 493/ `48s ja `482' Tr / "�C1 -115 I / OPERATED AND MAINTAINED BY HOME OWNER'S ASSOCIATION OR
4. IF IT IS DETERMINED DURING CONSTRUCTION THAT SIGNIFICANT SEDIMENT IS / ) _ AGENT THEREOF.
LEAVING THE SITE, DESPITE PROPER IMPLEMENTATION AND MAINTENANCE, THE \ \ \ f \ I r f / /i) / / / / �' / j / /
CONTRACTOR IS _OBLIGATED TO TAKE ADDITIONAL CORRECTIVE ACTION. \ /' I , �-7� /
CONTACT CHATHAM COUNTY ENVIRONMENTAL QUALITY DEPARTMENT, OWNER'S `� I -I- `� °° � -' � •rn / / / r �'`�� j % -- `" / f / / I / / / / r �. �.�• / / ► e�� � I - �' 13. LENGTHS SHOWN FOR STORM DRAINAGE PIPES ARE MEASURED FROM
\ \ a �� / d �� j _ _- _ J j / _ j / / / , / �� r r / , - f i CENTER OF STORM STRUCTURES AND TO ENDS OF FLARED END
REPRESENTATIVE AND ENGINEER WITH ANY ADDITIONAL MEASURES NEEDED. \ \ - f / J / r / f / / 1 _ SECTIONS. SLOPES CALCULATED ARE BASED ON THIS LENGTH.
5. CONTRACTOR SHALL ESTABLISH GROUNDCOVER ON DISTURBED AREAS WITHIN \ y I / / I / J / J r / r - ^ -- - - 14. CB DENOTES CATCH BASINS TO BE INSTALLED IN THE CENTERS OF
/ / I ) / / / / / / // /f % r
THE NUMBER OF CALENDAR DAYS AFTER COMPLETION OF GRADING PER THE \ wl C1 -261 - \ (( - / I / / / / /o / / / f / fl - - - PAVED ALLEYS AND NON -PAVED AREAS. REFER TO NCDOT DETAILS
SCHEDULE BELOW: I \ \ r / / 1 / / / 1 / / / / / / / / / / - / /
1 -256 I I f 840.19 AND 840.24 ON SHEET D -2.2.
1 4 \ I SO o - rn/ I 495 �4g1 I r 4 8 j 484 - 480 o e477 f r d^ �l ' / YI 1 / - - W s
GRADUAL SLOPES: (14) CALENDAR DAYS �• \ I I \ \ ` tl f�_ rr / �' - ""� 15. CI DENOTES CURB INLETS TO BE INSTALLED IN THE CURB LINES OF
MODERATE SLOPES. (10) CALENDAR DAYS. \ I 1 % / / / / / / f - ROADWAYS. REFER TO NCDOT DETAILS 840.02 AND 840.03 ON
t �,l \ % \ \ / I SHEET D -2.2.
STEEP SLOPES: (7) CALENDAR DAYS I� yp0 \ k > L 1 I r CB -132E / CB -132D l l CB -132C I ) ' CB -132B� o/ r i I / Cl -1 ! 1 - - ! _N
SLOPES ARE AS DEFINED IN THE CHATHAM COUNTY SOIL EROSION AND
SEDIMENTATION CONTROL ORDINANCE. \ \ \ I / / '' '` ___- _..._.__.•�__ /
6. CONTRACTOR SHALL ARRANGE PRE - CONSTRUCTION MEETING WITH THE - 7` L
OWNERS REPRESENTATIVE, ENGINEER AND CHATHAM COUNTY.
\ \ i I I 491) ( 488 / 4851 I 482 - 4794 -477 I / 474 / LEGEND:
7. OBTAIN LETTER OF PLAN APPROVAL FOR SEDIMENTATION AND EROSION I� I ° \ �( J I ; {- / / j / 1 I I / t / / I (` \� \ ?\ ( \`� °�- 0000000000000000 TEMPORARY CONSTRUCTION
CONTROL FROM CHATHAM COUNTY SOIL EROSION & SEDIMENTATION CONTROL II f -�-I-- i / j I \\ \ \ < f I c 4 5
I k \ \ �\ \\ W P o 0 0 0 0 0 0 o ENTRANCE
FOR THOSE DEVICES NOT INCLUDED IN THE STAGE 1 CLEARING AND GRUBBING
PLAN PREVIOUSLY APPROVED FOR BC SOUTH. e
f / / I / ( / / I \ \ \ \ \ \\ \ \ l - \ \ _ RIPRAP OUTLET PROTECTION
8. CONTRACTOR TO POST EROSION CONTROL PERMIT PROMINENTLY ON SITE AT \ \ \ \\ \ \ \ I I
ALL TIMES. ,- \ �' soo \ / 2 1 �- \ \\ \\ \ \ I \ ; \ ` COMBINATION SILT /TREE PROTECTION
l \ i \ 1 r s / / I / BLOCK &GRAVEL INLET ; / / / I \ \\ \i \ a �\ \`� \� \ t I / \\ \ I ! SF�TPF FENCE
9. CONTRACTOR TO HAVE A PROFESSIONAL LAND SURVEYOR FLAG PROPERTY �� I ( 1 ) 48 / / l f } } y
C1 -262 Cl -137 I C1 -136 / I / } PROTECTION (TYP.) / / f \ \ 1 \\ \� \ 1 \ C1 -110
,,I.
LINES, EASEMENTS, LANDSCAPE BUFFERS, STREAM BUFFERS, TREE PROTECTION / -25 , --' � / / / � � / / ) j �_ �o \ Cl- 128 � \ TPF TREE PROTECTION FENCE
AREAS AND LIMITS OF DISTURBANCE. \ I -488 I 1 482- �- -479----_ �' X476/ 474 411 { \ \ \ \\ \� \ y \ \
I I�' CJ -263 �, i � \ I ( / \ j / j \ \ � \ _
10. TEMPORARY CONSTRUCTION ENTRANCES, TEMPORARY DIVERSION DITCHES, SILT I I ` �g5 \ \ Cl 135 J I C1 -134 I / I i k ' , / ( / C1 -133 ( / / / I ( !) (I i , 1 TEMPORARY DIVERSION DITCH
J C1
FENCING, TREE PROTECTION FENCING AND TEMPORARY SKIMMER BASINS WERE ��_ x� -- - -� - _{-- - �- -/ 1 k-- I_� - -J -C _ - -,-
INSTALLED AS PART OF THE STAGE 1 CLEARING AND GRUBBING PLAN FOR BC 535 EXISTING CONTOUR
SOUTH. CONTRACTOR SHALL INSPECT THESE DEVICES TO ENSURE COMPLIANCE I\
PRIOR TO FINAL GRADING OPERATIONS. I
_C1- 264�a`' \ \ - ( / % / AD
11. BEGIN FINAL GRADING OPERATIONS FOR ROADWAY AND LOTS PuB is / ^h ( �o ( soh / J oo / I \ EX. LIMITS OF DISTURBANCE
12. AS ELEVATIONS ARE BROUGHT TO FINAL GRADES AND STORM PIPING IS I \ r ° LIMITS OF DISTURBANCE
109
INSTALLED IN ROADWAY SECTIONS, CONTRACTOR SHALL INSTALL BLOCK AND T J �-- - -_ �- �` }- - - - _t T C/_ I jo ( I (' l
\ SEDIMENT BASIN BAFFLE
GRAVEL INLET PROTECTION AS SHOWN ON PLANS. � � I I � � � � \ � � � � � --� 38� /� I / ( ICI � 139 - � � � ( ( 1 Cl -1 40 � � � / \ � k V � � �\ � � (/ �
13. CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT LADEN RUNOFF IS DIRECTED I 9s 1 j I \ \ I { \ \ _
TO ROADWAY INLET PROTECTION PRIOR TO REMOVAL OF ANY SEDIMENT
CL, l \ `� \ \ r / / / f / f { I ( / ` ` / / i k / \ \ \ Cl 129 \ \ \ ' BLOCK &GRAVEL INLET PROT.
SKIMMER BASINS. L Q a \ ° t \ v 4
k }! /� / I f I /f /1il I( �I I 1�1 \\/ \\ 1
\ Y) _ / } ( \ i \ \ _ ARC PIPE INLET PROTECTION
14. ONCE CONTRACTOR HAS COMPLETED PIPING SYSTEM IN THE AREA OF ROAD L, o I m� \ a L I k / ( l f / / ) \ / , ` { -' ' I \i \ C1 -108
ROAD R AND ROAD Q, CONTRACTOR CAN CALL CHATHAM COUNTY FOR ( m \ - \ Q - \ \ \ / I -,487-
' k / 481 / J f479 479-4- r 473- �9 i {
_ ..-
APPROVAL TO REMOVE SKIMMER BASIN 3B. m /
I X90
15. UPON STABILIZATION OF AREA NORTH OF ROAD L AND APPROVAL BY
CHATHAM COUNTY, CONTRACTOR SHALL REMOVE SKIMMER BASIN 3A, 4, 5, I (
AND 6. I - .- - \ \ � �� � / / f / � ( / j 1 \ \ ) I / 1 / / / / / l f �Cl� 141 ' k5 1 \ \ \ � } \ ^ � � G
C1 -265 �` -''" \
16. PERIMETER SILT FENCE NORTH OF ROAD L SHALL REMAIN AT TOE OF GRADED �1 -254 ®- I I \ \- - �' / /f \ \ / 1 I ) / ) / / / / / / / / / I i i I, \ \ ,\ \ \ \ / ) i I11 a
/ ,j / I t I / I / / / / / / / i v \ I / I;
SLOPE AFTER REMOVAL OF SKIMMER BASINS AS SHOWN ON PLANS. 1 ., I m f /r / / / / / cn } ) / 1 . ,
al
/ I I _ A v /CB 146E / / f CB 146D / / / l CB- / l �, / /
- i , / / t 146C 1 CB -1468
17. PERFORM SEEDING AND MULCHING AS REQUIRED IN ACCORDANCE WITH THE I ( ( t \ j V e ) /
PLANS. / I I I + ( / - `I_•_ -- -�� I - / lr J X f f / f I r 207-
}
18. ONCE GROUNDCOVER HAS BEEN ESTABLISHED AND OTHER CONSTRUCTION IS
COMPLETE CONTACT CHATHAM COUNTY SOIL EROSION AND SEDIMENTATION
/ Ia
AND ENGINEER FOR SITE INSPECTION BEFORE REMOVING ANY TEMPORARY I / / I I } I j
/ % f f s`- f
EROSION CONTROL MEASURES. / { ( ~ �- k� / / / / / / / / / / / / / { J l o C1 -107 o
/ \ I tl / / / / / Cl 142 f / / CALL N.Q ONE
\ \ f Rs CALL CENIM
/ / / / a / / / / r / /
o\\
� \ / -� / .,. '� / � X '` / / BEFORE YOU DIG
RIPRAP OUTLET / - I j / / / / l 1 ( ( j / / / / / / f / r` f DBL C1 -145 / f /
LEVEL SPREADERI VEGETA TED \ \ _ I ) \ j I l "% \ I ' / y / STOP
fFIL TER STRIP #2. SEE DETAILS \
PROTECTION I I kay \ \ I \ I / / / / I / l i ) ( / / / f l / / / / ( / i ( f i - ° "j )\ I / / o /� j/ j I / ; f . / / / / ,/ \e
/ CLASS A RIPRI. I- 800 -� -��
SHEET 04.1 I � I - / l / 1 / j I / 1 J / / / / /
\ \ � 1 . �---- f `may / `� � I l �' / \ f�'r / / f / , / AVOID U71UTY
7 Lx4 Wx12 D / U- v I A / 1 1 481 I I _47�� j .CI -106 / o /A \ NORTH R AGE
\ \ / CJ -152 _ - / 48 / / ) ( t / / / ( / / j l / ( i ( l GCB -1 ) ( k% r / / / / \ J J / / / f / r
SCI -25 �� 464 -� ( 4so /� / 0
CJ -266 \\ I C1 -151 _ , l f I I ) 1 ( j f /_4s / f /) / ` 45 S / / / / ' / 50 0 50 100
413 470 I C1 -146 / j f / 7 r / / /
TPF ' \ I \ � I � I / } } / / I I I I ( ( \ i ) I ) I \, - I f / , � / ( i I � \/` / j / ( A
°� SCALE: 1"=50' Horiz.
I ( \ I Cl 147 ,� /S k )
�- - - - C1 -150 ( / C1 -149 ( \ , \ \ 1 CI -148 t_ ( \( e \ \
��� � _..v_M.. �. ,: y - - - - - - - - - •�- - - - -�- - k _ - ..� C1 -144 / r \
-
�I/ \ \�\ k
�
B -B 40
( C1 -251 C1-252 \ \ \ /
/ I 1 -
= CI
-105
Cl-' \\ €- -- - - -- -- Clr 153 \-`, \
/ QIPRAPrOUTLET ) ( t I e �t / _ T F I t \ I I I. .I� ,� \ f ( / 1 , / 1 �\ I \ \ \ \ \ \ \ \ \\ \ \. t \. `\ \. n n n rr.i n inir nrr �i irr-r nn n
PROTECTION } 1
\FES -250 \
I 2 ISSUED FOR PERMITTING
1 FOR REVIEW BY CLIENT
REV.NO.
01/23/2013 %' ryGI Ntt�... v Ck5S,_I - - - .. •...... F -1222 01/18/2013 %,T L ;v�\��,�`' ON CONTROL PLAN
DESCRIPTIONS DATE www.mckimcreed.com Newland COMMUNMES
�c�ircrnn�c

f
7/I
I A L_ I I -A
W I I I \ \ 41 8 4 \ A I \ 4 8\ 1 4 V J 9 I j 1 I \ 4 � I 8 3 3 7/ / 1 4 6/ 9 - / t I 1 i J 67 1 1 � / 464-1 ) I 62 / a
�\C� \ 3\ .� MATCHLNE SEE SHEET C 44 5
U7—
\ I
m � V A \ � I I � \ 1 � I ) ,, 1 l J � -' -- __. / / \ \III 1 / / / � I / / } / �v � 1 ♦ v � , -' \ � \ V � \ v V A \ \ \ ° \ \ \ \ \ \ l ( l
\i \\ 1. Mon I \ / / / i I i f I 465/ aso \ 1 CB -16�\ CI -104 ACi -202 CB -155 \ 1 I 1 \ \ CB -166 / 1 CB -165 CB -164 1 / s / \ \ ! CI -201 j� t \ i/ \ �� / \ , "t � I ! DBL / 9 v \ —� \ \ \ � � // CB -1 !I
> / \/ \ a I I I I \ ° \ 1 i / CB -162
G CI �--' . 1 3- CB -16 DBL C1 -178
\ \
/\
8 -170 , \ x \ \ \\ \ \ /� \AS I I� C1 -173
\DBL CB -167
Ole
i \ I \ I I\ — — ' � '` / � f ) \ t � / . - � \ \� \ l \ \ \ 1 \ \ \ sl I I I \ �/ -� \ --` \ 440 ` \ 440~'\ \ 2• ® \ \ —,�, -° f = `>
\\ /C1 -172
i I 1 ._-� - -- '`_f — �_' — -_.- � �. -� _ � -=� I I � t � / I/ � --- / � / � � � / ° \ \ L� o -- �- � I � �- I ,�
`EX. DEs6 35A = =5 = _-�.. - / / _ i `� / 1 6 � ` I hti I \
\ — - ---_ .484 =s-- -- `_. _�_ ��_ E 473 / l <` �/ \ I say' / If' I I� I \ \ \\ \ \\ / ~` / / ''
C1 -211\ ^� —
0 438 - ) /
-_/ / ` , °, �, ,�� /. l \ �.�CI _177 / <� C1- 174 '` C1 -175 \r, // , f \ \.
SEAL
SEAL
EsslgRoli�q, //�
028419
01/23/2013° -0
�' %,��q�T FNGINEE�. ��0�.��•
RA� �OUTL�T/ //
PRO T C l N/ l ( LS/VFS #3 ( I } I
-�E 3 335 T� S E DETAILS SHE T D4.1
/ / �1
NlqUM&CREED
1730 Varsity Drive, Suite 500
Raleigh, North Carolina 27606
Phone: [phone], Fax: [phone]
F -1222
www.mckimcreed.com
TM
B bk-4 CA, WWP� C H A P E L
NewlandCOMMUNITIES
e'` I WAR
DATE:
JANUARY 18, 2013
SCALE
M &C FILE NUMBER
�/
C3
MCE PROD. #
02735 -0090
"X
DRAWN
GCA
HORIZONTAL:
DRAWING NUMBER
1" = 50`
DESIGNED
GCA
VERTICAL:
C3 3
CHECKED
CHS
PRO]. MGR.
CHS
N/A
'STATUS: REVISION
FOR PERMIT ONLY 2

rSOLID 8" PVC TO LEVEL
SPREADER FOREBA Y t
INV 4675 �
20 00,\
J LEVEL SPREADER FOREBA Y 472 INV. 467.00
!CLASS A RIPRAP 12" DEEP 470
TO THE LIMITS SHOWN
I lI l6" PERFORATED PVC I 1
UNDERDRA /N PIPE h
To DA YL�IGHr
%l f / ( 0
1 � °
�° N N
r/ / 1 / �, � y �q• y c I 1 ,I �
! VEGETA TI VE FIL TER STRIP .�
/ % /
o
f BMP MAINTENANCE & ` �' / o ° ' I
ACCESS EASEMENT T.
\ \ 1 67'
/ \
1 ' A OO ,
300' � 70.00'
LEVEL SPREADER ZVEGETATIVE FILTER STRIP #2
SCALE: 1"=20'
Io
LEVEL SPREADER
{
{
1/
NORTH
BMP MAIN HNANCE & \ \ \
ACCESS EASEMENT
SOLID 8" PVC -0 LEVEL
. S R 426.5 FOREBA Y \ \ \ \
\ g ' `INV 426. LEVEL SPREADER FOREBA Y
0 \ CLASS A RIPRAP 12" DEEP \
q.30 2 �• \� TO THE LIMITS SHOWN � \
" 432 1 3 ;1 y \\ ~•,' � \ \ \ ` \ '�
rk 6 X y \ \ VEGETA TI VE FIL TE \ STRIP
IV \ \ \ \
/
O IV p �y y \ \ \ \ \
y\ \ pr \
O t
y
y
IV y \
°
`\ y c5s,
0 IV
y
'f LEVEL SPREADER
SEAL
f
FES -320
RIPRAP OUTLET PROTECTION (TYP.)
SOLID 8" PVC TO LEVEL
,� SPREADER FOREBA Y
"�, 1 IN V 431.5
JL 10
I /
\ \ \ 1,- \INV 431.0 J
\ \ \ ` qn n0'
- FES-
LEVEL SPREADER FOREBA Y
CLASS A RIPRAP 12" DEEP f
t TO THE LIMITS SHOWN l
VEGETATIVE FILTER STRIP
4
W W
\ \ \
\ \
L° W �� \ BMP MAINTENANCE &
,,5.0% \A�CCESS EASEMENT
III \ 2: 1 \ 0 \ 1-11, W
a' \ ° \
6" PERFORATED PVC `
UNDERDRAiN PIPE .00 /
TO DAYLIGHT
\ 1 0 3.00 Y
LEVEL SPREADER VEGETATIVE FILTER STRIP #3
SCALE: 1"=20'
SEAL
/
.... �ARO% //,
pFESS! '9� •.9
cv
S
028419 -
�;`•, 01/23/2013.:
!q'T FNGINEE�.�0����•
1130 arse y rive, buite buu
Raleigh, North Carolina 27606
Phone: [phone], Fax: [phone]
F -1222
www.mckimcreed.com
NORTH
LEVEL SPREADER
OR SCOUR HOLE
Al B1 C1
• • •
A2 B2 C2
• • •
A3 B3 C3
• • •
L
B C
UNI FOPM
SLOPE
NOTES:
JANUARY 18, 2013
1. THE VEGETATED FILTER STRIP SHALL HAVE A UNIFORMLY GRADED SLOPE.
ALL SLOPES Al —A3,
81 -133 & C1 —C3 SHALL HAVE EQUAL ELEVATIONS.
GCA
2. THE VEGETATED FILTER STRIP SHALL BE GRADED PER THE SLOPES SHOWN
ON THE PLAN VIEWS.
3. THE VEGETATED FILTER STRIP AND ANY ADJOINING SIDE SLOPES SHOULD
BE COVERED WITH A
MINIMUM OF 6" OF TOPSOIL.
CHS
4. THE TOPSOIL SHOULD BE AMENDED WITH:
—2 CUBIC YARDS OF PEAT MOSS /1,000 SF OF TOPSOIL
—75 LBS GROUND LIMESTONE /1,000 SF OF TOPSOIL
—40 LBS 5 -10 -10 STARTER FERTILIZER /1,000 SF OF TOPSOIL
5. VEGETATED FILTER STRIP SHALL BE PLANTED WITH TALL FESCUE SOD ON
TOP OF AMENDED TOPSOIL.
SOD SHOULD BE GROWN IN NON— CLAYEY SOILS OR SHOULD BE WASHED
SOD.
6. THE SOD SHOULD BE WATERED SEVERAL TIMES A 'WEEK FOR 1 TO 3 WEEKS, KEEPING THE TOP 1.5 INCHES OF
SOIL MOIST, UNTIL ROOTS BEGIN TO BECOME ESTABLISHED.
VEGETATIVE FILTER STRIP
N TS
LIP ELEV. 0.5' OR GREATER BELOW
CONCRETE BYPASS APRON ELEV.-
EXISTING
GR NU0 D
i / �
l • •it t
F CHAPEL
by
NewlandCOMMUNITIES
1" WASHED
GRAVEL
6" PERFORATED
PVC PIPE. MAINTAIN
0.5% SLOPE TOWARD
OUTLET
1'
LEVEL BLIND SWALE
SPREADER BOTTOM EL.
2 468.25'
3 427.25'
4 432.25'
CONCRETE LIP
TOP EL.
469.25'
428.25'
433.25'
LEVEL SPREADER SECTION VIEW
NTS
CONCRETE
3" LAYER #57 STONE
UNDERLAIN WITH
FILTER FABRIC
ENGINEERED
DATE:
JANUARY 18, 2013
MCE PRO]. #
02735 -0090
DRAWN
GCA
DESIGNED
GCA
CHECKED
CHS
PROJ. MGR.
CHS
SCALE
HORIZONTAL:
AS NOTED
VERTICAL:
N/A
M &C FILE NUMBER
D4 .X
DRAWING NUMBER
D4.1
'STATUS: REVISION
FOR PERMIT ONLY 2