20070309 Ver 1_More Info Received_20070620

•N
:.w E'y BURDETTE LAND CONSULTING, INC.
308D W Millbrook Road, Suite 200 - Raleigh, North Carolina 27609
Telephone [phone] - Fax [phone]
S
June 19, 2007
Mr. Ian McMillan
401 Oversight/Exp Review Permitting Unit
North Carolina Division of Water Quality
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27604
RE: Additional Information Requested
Blalock's Glen Subdivision
DWQ Project # 07-0309
BLC Project #: 60030
Dear Mr. McMillan:
JUN 2 0 2007
DENR • WATER aUALITy
WETWbt AND STORMWATER BRANCH
We received NC Division of Water Quality's May 14, 2007 letter requesting additional
information regarding stormwater management for the subject project. On May 29th, Mr.
Keith Roberts, PE and I met with Ms. Annette Lucas of your office to discuss the various
stormwater requirements for the project.
As requested, attached is a full-size sheet of the project plan at a scale of 1" = 100'.
Because of the project size, we have also include an 11x17 key sheet of the project
showing the locations of larger scale insets (1" = 60') to aid in the review process. These
plans show the topography, streams, wetlands, buffers, lot lines, roads, and the locations
of all stormwater BMPs proposed for the project.
Level spreaders are proposed to provide diffuse flow for every swale that discharges to a
riparian buffer except those at the proposed road crossing and two drainage easements in
which discrete conveyances of stormwater will not be constructed. Grass swales are
proposed at the road crossing (Aquadale Drive) to provide stormwater treatment prior to
discharging to the riparian buffer. Rip rap dissipaters are proposed to provide nonerosive
flow for every swale discharging to a wetland. Stormwater calculations, level spreader
calculations and worksheets, grassed swale calculations and worksheets, rip rap dissipater
calculations, and operation and maintenance agreements for each type of proposed BMP
are also attached. These stormwater BMPs are numbered on the plan sheet and cross
referenced on the worksheets and calculations.
As mentioned above, discrete conveyances of stormwater will not be constructed within
the drainage easements between lots 29 and 30 and lots 80 and 81. Therefore, no diffuse
Mr. Ian McMillan
June 19, 2007
Page 2 of 2
flow provisions are proposed. However, the following note will be included on the final
plat of the subdivision to ensure continued compliance with the Neuse River Riparian
Buffer Rules.
"Any future grading or piping within 20' Drainage Easement will require diffuse
flow provisions approved by NCDWQ prior to construction. "
If you have any questions or require more information, please do not hesitate to contact
me at [phone].
Sincerely,
BURDETTE LAND CONSULTING, INC.
Z-Z
JenntrA. Burdette
Environmental Specialist
Attachments
c: Lester Stancil - Stancil & Associates
Received 05 31 2007 14:31
May-31. 2007 12:17PM
Blalock's Glen Subdivision
Storm Drelnege
No.9361 P- 3
Inlet Do C I (In/hr) 025 (cfs) pe ze Length Hw H
1 2,30 0.5 8.5 9.8 24 64 2.0 0,8
2 2,67 0.5 8.5 11.3 24 64 1.7 0,2
3 6.51 0.7 8,5 38.7 36 132 3.3 1.2
4 2,90 0.5 8.6 12.3 24 64 1.9 016
'5 91.48 0.3 8.5 200.0 48(2) 88 4,8 1.2
6 0.44 0.6 6.5 2.2 18 156 1.5 0,6
7 1,61 0.6 615 8.2 18 100 1.5 0.6
8 1.00 0.8 8.5 5.1 18 100 1.3 0,4
Dlsslpatore
Outlet a 025 (cfs) Plpe Size Slope Vel (fps) Dissipator D50
1 9.8 24 5.5% 14.0 8'x16'x24" 13
2 11,3 24 1,7% 9.5 61x12'x18" 8
3 38.7 36 0,5% 7.8 9'x18'x18" 8
4 12,3 24 5.9% 14.0 VX16'x24" 13
5 200.0 48(2) 3,3% 14.0 8'40'44" 13
6 2.2 18 3.9% 4,6 5'X6'x12" 6
7 8.2 18 0.6%. 4,5 5'X8'X12" 6
8 511 16 1.0% 6.0 5'x9'x18" 6
Sediment Basin Design
Basin Dim, Do (Ac.) D9 (Ac.) C 010 Sq.ft Sediment Volume Weir
1 1,3 7.5 0.25 13,5 5,881 40'x150'x3' 15'
2A 0.4 4,6 0,25 8.3 3,617 25'x1 45'x3' 12'
2B 0.1 0.9 0.25 1.6 684 19'48'4' 10'
3 0.7 1.2 0.25 2.1 920 22'x44'x3' 10'
' See attached analysls
Received 05 31 2007 14;32
May,31. 2001 12:17PM
Blalock's Glen Subdivision - Phase II
Storm Drainage
No•9361 P- 4
Inlet Do C I (inlhr) 025 (cfs) Pipe Size Length Hw H
1 2.30 0.5 8,5 9,8 24 40 1,7 0.1
2 2.82 0,7 8.6 16.8 24 124 2.4 1.1
3 2.64 0.8 8.5 13.5 24 184 2.2 1,1
4 0.48 0.8 8.5 2.4 18 64 0.8 0.1
6 0.88 0.7 8,6 5.2 15 144 1 A 1.2
6 0.48 0,7 8.5 2.9 15 60 11 0,1
7 2.94 0.5 8,5 12.5 24 104 1.9 0,8
Dlealpatore
Outlet Q Q10 (cfa) Pipe Size Slope Val (fps) Dissipator D50
1 9.8 24 1.0% 7,0 6'x12'x18" 8
2 16.8 24 1.5% 5.9 6'x12'x18" 6
3 13.5 24 015% 5.7 8'x12'x16" 6
4 2.4 18 211% 6.4 5'X12'X18" 6
5 5.2 15 0.8% 4.8 4'x5'x12" 6
5 2,9 15 5.4% 8.9 4'x8'x18" 6
7 12.5 24 1.2% 8,0 6'x12'x18" 8
Sediment Basin Design
Basin Dist. Da (Ac.) Do (Ac,) C 010 Sq.ft Sediment Volume Weir
1 0.6 2,8 0.25 5.1 2,217 34'x68'x3' 10'
2 0,9 21 0.25 4,8 2,076 33'x66'x3' 10'
3A 1.0 7.2 0.25 12.9 5,622 40'X145'x3' 10'
313 1.0 18.1 0.25 32.7 14,247 40'x145'x3' 10'
4 1.0 0.9 0.25 1.6 692 20'x40'x3' 10'
5 0.5 0.5 0.25 0.9 377 15'x30'x3' 10'
8 0.5 2.9 0.25 5.3 2,312 35'x70'x3' 10'
Received 04 02 2007 16;24
4Pr• 2, 2007 2:11PM
NITROGEN SWALE CALCULATIONS
BLALOCKS GLEN SUBDIVISION
WAKE COUNTY, NORTH CAROLINA
No-8785 P- 1
SUBMITTED BY, DEVELOPMENT CONSULTING SERVICES, INC.
1401 AVERSBORO ROAD, SUITE 206
GARNER, NC 27529
[phone]
:PAX [phone]
CARD••,,
SEAL 2 ~ 01
02,3728
•?? •w 0 ?NE:E? Q`ti
Received 04 02 2007 16:24
Apr. 2. 2007 2:12PM

NE SSWA L6 (2)
O.L- CI /A ?(• 1J (r ?J? S•74 lk, 3.1 CIS
N W lciw ec C (I )
JAR= 3 ?? .
01, Cl(?: 7cis
5E Swi?w- (3)
Q,,9 C ( pt - (. ? ) ( S.-7 6
Sw ? P, iF (y)
bA- .3 AC..
No.8785 P- 2
Received 04 02 2007 16.25
Apr - 2- 2007 2:12PM
GRASSED SWALE #1
No-8785 P- 6
HYnPlAUHC RESULTS
Disohergrt

dx o low

Paaad rr Weloal(y ppt) Alga (900
Hydn?ic
Fe6usR
aural
De
0 0.1 1.99 3.51 0.29 0,27
?RE?NER RESULTS
3 actoe iUt:31UN r-HLUIULNLT:
U hrelydorced Vagat,adon
l
S - 0.0100
11
1 L
Width t?2.00 N
Not to Scale
Reach Material Type F'ha a DO Yoe SoIITy?pe Maming'a'n' Pemtisaibls V. ate alpty Reroerlu
St t! a Danei Sheer Saeta (pit) Shear Stren [pan Factor
Straight Uraelnlereed Bunch 0.030 1.20 0.17 20.59 STABLE
C 75.sn E:* Low 0.050 0.023 217 STABLE
Received 04 02 2007 16:25
Apr. 2. 2007 2:12PM
GRASSED SWALE #2
HYDRAULIC P
Diar wgo
My) Peak Flaw
peliad 1h WeAQ*11Pd Area Iea.lU
I Hydraulic
f Nmmel
e h It
p.1 0.1 1.91 1.60 0.15 0.15
Mod
No.8785 P. 5
LD Width =T.00 It
Nei In Scala
Reach MOM Tune
Sta le Pattern live
Cbee Do. V22
a Dwmlty or ype Manninai'n Parmisyble
shoal Stress (PyQ Calculated
Sheer Stress (PSO 6alely
Factor Remarks
9(reipht Ihaekrlorced 0uneh 0.030 /.20 0119 22,02 STABLE
C 75,95%. Clay Loam 0.050 0,025 1,94 STABLE
Received 04 02 2007 16:24
Apr. 2. 2001 2:12PM
GRASSED SWALE #3
No.8785 P- 4
E,
HYDRAULIC RESULTS
ao me
cfs Peak aw l
Period hn vabik? pe ea (WO y eul a
Rmt t Normal
Depth 1111
0.0 CO 1.96 0,30 0.07 0.07
L" bdl"T.00 ft
Not to Scale
each a
I T 391 Typc Manrinp'* Permissible Cakufated SafaV amm
I
Ste Pattern a 5haar5treea(p9f1 Shea9heu (psf Faclor
Slraipht Unr*WIDIced OM& 0.030 4,20 0.19 23.42 STABLE
C 75.95% Clay Loam 0.050 0.024 2,95 STABLE
Received 04 02 2007 16;24
Apr. 2. 2007 2:12PM
GRASSED SWALE #4
No,8785 P. 3
Ditcherpe
rle Perak Fbw
milad (by) Velucily (fps) Area (cq.lr.] Hydraulic
Radu Fl Normel
De kh Ik
0 0.1 l.el o.ai 0.09 0.09
3 acres (DESIGN FHEQUENCY:
Llrveinf0reed Wegel l
5 = 0.0400
11
Ln ,wf49n,?'00 kr
Not 10 Scale
Reach Maler Phaee Ve T e ShcType Mennngs h arniasibls Calctlated 9ekety Remarks
staple Parterh Denei Shear Streaa (PSI] ghear ghee [psn Feckor
61rayhk LIrioHcrced Bunah O,D3o 1.20 0.21 19,65 STABLE
C 75.95% ClgyLoam 0.050 0.029 1,73 STABLE
Received 04 10 2007 09:24
APr.10. 2007 1:11AM
No.8846 F. 2
DWQ Project No, 0 7- 1930 2
DIVISION OF WATER QUALITY - GRASSED SWALE WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : A o
?y 217
Contact Person, I0n/1e- /R cc rJ64 eJ Phone Number: 0 119)
Swale ID: w Q
Grass Swale Length
Tributary Drainage Area
Impervious Area
Max. Velocity from 2 Yr. Storm
Max. Velocity from 10 Yr. Storm
Min. side slopes
Steepest Effective Slope
Cover Crop
Ion' ft.
3 ac.
Z ac.
1.99 fps
7.1119 fps
3:1 ratio
.0 tuft
c r,kss
(at least 100 ft. per tributary acre)
(on-site and off-site drainage to the swals)
(on-site and off-site drainage to the Swale)
(2 fps max.)
(3:1 min.)
(check dams may be used)
REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum,. a complete stormwater management plan submittal Includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional Information and will substantially delay final review and approval of the project,
Aopftants Initials
KMA- Vegetation Plan provided on plans
,Cmil The underlying soils are permeable and non-compacted
IrM,C Swale carries only stormwater flow
r4mg -Water table depth is greater than 1 foot.
Kk11 Plan details for the swele provided,
K IK Plan details for the Inlets and outlets are provided,
ESK Check dams provided,
KJ4X-- The operation and maintenance agreement includes annual erosion and vegetation repair, and at least twice
annual mowing,
KKK The operation and maintenance agreement signed and notarized by the responsible party is provided.
Received 04 10 2007 09:24
APr.10. 2007 7:11AM
No.8846 F. 3
DWQ Project No. P7- 0309
DIVISION OF WATER QUALITY - GRASSED SWALE WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : 1 naG s G -
Contact Person' 4nnP _&& be. c _ e_X Phone Number L2l 'S.L? ?ZD
Swale ID: 9 4 )
Grass Swale Length
Tributary Drainage Area
Impervious Area
Max. Velocity from 2 Yr, Storm
Max. Velocity from 10 Yr, Storm
Min. side slopes
Steepest Effective Slope
Cover Crop
/00, ft.
.9 ac.
.3 ac.
1.94 fps
2. l 2 fps
ratio
, ftfft
009
II. REQUIRED ITEMS CHECKLIST
(at least 100 ft. per tributary acre)
(on-site and off-site drainage to the Swale)
(on-site and off-site drainage to the swale)
(2 fps max.)
(3:1 min.)
(check dams may be used)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submitlal package will result in a request for
additional information and will substantially delay final review and approval of the project,
Applicants Initials
AkA Vegetation Plan provided on plans
^t- The underlying soils are permeable and non-compacted
Knd Swale carries only stormwater flow
llmL Water table depth is greater than 1 foot.
M4 Plan details for the swale provided.
Xn,c Plan details for the inlets and outlets are provided.
IVA Check dams provided,
Z_The operation and maintenance agreement Includes annual erosion and vegetation repair, and at least twice
annual mowing,
KA The operation and maintenance agreement signed and notarized by the responsible party is provided.
Received 04 10 2007 09:24
Apr,10. 2001 1:11AM
DWQ Project No. 0 7 - 0 30 9
DIVISION OF WATER QUALITY - GRASSED SWALE WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : "
Contact Person: f4 / Phone Number:
Swale ID: _f C3
Grass Swale Length
Tributary Drainage Area
Impervious Area
Max. Velocity from 2 Yr. Storm
Max. Velocity from 10 Yr, Storm
Min. side slopes
Steepest Effective Slope
Cover Crop
II, REQUIRED ITEMS CHECKLIST
1 pn' ft.
f S Be.
1 Be.
/. LS fps
fps
1" 1 ratio
,o4 _ Rift
C &hj6 _
No•8846 P- 1
(at least 100 ft, per tributary acre)
(on-site and off-site drainage to the Swale)
(on-site and off-site drainage to the swale)
(2 fps max,)
(3:1 min.)
(check dams may be used)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why, At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicant Initials
/cM Vegetation Plan provided on plans
4#14 The underlying soils are permeable and non-compacted
XAIA Swale carries only stormwater flow
K,I,g Water table depth is greater than 1 foot.
JC,bLE Plan details for the swele provided.
Plan details for the Inlets and outlets are provided.
XA< Check dams provided,
"R The operation and maintenance agreement Includes annual erosion and vegetation repair, and at least twice
annual mowing.
K,41C The operation and maintenance agreement signed and notarized by the responsible party is provided,
Received 04 10 2007 09:24
Apr•10. 2001 1:11AM
No.8846 P- 4
DWQProject No.? p7-19309
DIVISION OF WATER QUALITY - GRASSED SWALE WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name :
Contact Person: n,a r? 1R/o/oct (lone4 Phone Number; ( 719) a - 20
Swale ID: Sw ?
Grass Swale Length
Tributary Drainage Area
Impervious Area
Max, Velocity from 2 Yr. Storm
Max. Velocity from 10 Yr. Storm
Min. side slopes
Steepest Effective Slope
Cover Crop
1001 ft.
3 ac.
, 1 ac.
1187 fps
. o L fps
3 t # ratio
.o4 Rift
(at least 100 ft, per tributary acre)
(on-site and off-site drainage to the swale)
(on-site and off-site drainage to the swale)
(2 fps max.)
(3:1 min.)
(check dams may be used)
II, REQUIRED ITEMS CHECKLIST
Initial in the space provided to Indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why At a minimum, a complete stormwater management plan submittal Includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
A9y% Vegetation Plan provided on plans
r The underlying soils are permeable and non-compacted
A Swale carries only stormwater flow
ale Water table depth is greater than 1 foot,
ffAo Plan details for the swale provided,
Plan details for the inlets and outlets are provided.
Check dams provided.
The operation and maintenance agreement includes annual erosion and vegetation repair, and at least twice
annual mowing.
kM?_ The operation and maintenance agreement signed and notarized by the responsible party is provided.
GRASSED SWALE OPERATION AND MAINTENANCE AGREEMENT
Name of Project:
Blalock's Glen
Address:
T!,__ oro9osc-? "Lo1'rl s.y,7 : j /ge424- A/ 1-2-11 0?4 Al /; 44 s?
'flA 6?r, La-* C_ C rye 3?i?) •rsz l?i//o? !fin /Jr .%? i P?'aaEu ??. ?J?i
Maintenance activities shall be performed as follows: caSyL 074 1t7;e,,, Co> ??.
MAINTENANCE ACTIVITY FREQUENCY
Post-construction monitoring-inspect for vegetation, Check after every heavy rainfall for first 6 months
settling, erosion, or concentrated flow following construction.
Remove excess sediment, especially from the Once annually
upstream edge, to maintain original contours and
grading
Repair any erosion and regrade the swale to ensure Once annually
that the runoff flows evenly in a thin sheet through
the swale
Inspect vegetation and revegetate the swale to Once annually
maintain a dense growth of vegetation
Mow grass to a maximum height of 6" Twice annually
GRASSED
SWALE ID LOCATION ON SITE (DESCRIBE) HOW WILL IT BE ACCESSED?
Nhl Lt,-a14/e- .fir S?rta n Crossi4 ofa le Qr.-V.
va-

3

5
6
Pagel of 2
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.
Print name: Dianne Blalock Jones
Title: Owner
Address: 7885 Panther Lake Rd. Dillow Spring. N.C. 27592
Phone:
Signatt
uate: !I - ! 1.. - u •
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 Nancy S. Stancil , a Notary Public for the State of North Carolina
County of Johnston , do hereby certify that Dianne Blalock Jones
personally appeared before me this 12th day of April 2007 , and acknowledge the
due execution of the forgoing grassed swale maintenance requirements. Witness my hand and official seal,
:y
CO
? A\ o
SEAL
My commission expires 7-4-2009
Page 2 of 2
Received 05 31 2007 14:31
May-31. 2007 12:16PM
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No,9361 P- 2
Received 05 31 2007 14:32
May-31. 2007 12:17PM
i. PROJECT INFORMA
Project Name : _
Contact Person: _
Level Spreader ID:. 1
Level Spreader Length
Drainage Area
Impervious Area
Maximum Filter Strip/Buffer Slope
grass
DWQ Project No. 0-7- 0301
DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET
(please complete the following information):
N o . 9 3 6 1 P- 5
a leau ars Phone Number- (911) 42!5?6Adl
1 ft. (perpendicular to flow)
2 • ac. (on-site and off-site drainage to (he level spreader)
ac. (on-site and off-site drainage to the level spreader)
(6`yc for forested, leaf littler cover, 8% for thick ground cover)'
cfs
to. B cfs
ound c or grass, canopied forest with leaf litter
gro
Max, Discharge from a 10 Year Storm
Max. Discharge to Level Spreader
Filter Strip/Buffer Vegetation ,
Pre-treatment or Bypass Method
III. REQUIRED ITEMS CHECKLIST
Initial in the space provided to Indicate the following design requirements have been met and supporting documentation is attached. !f a
requirement has not been met, a(tach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation end maintenance agreement, An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
?.11A Pre-Form Scour Holes are on flat slopes only
OeAV, No structures are located in protected buffers'
If bypass method specified in the Draft Level Spreader Design Option Document:
Bypass method is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located In protected buffers.
Plan details for the bypass and outlets are provided,
The operation and maintenance agreement Includes annual erosion and vegetation repair.
The operation and maintenance agreement signed and notarized by the responsible party is provided.
Level spreaders in series can be used on slopes of up to 15% In forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.
Received 05 31 2007 14.32
May-31, 2007 12:17PM
1. PROJECT INFORMA
Project Name : ?.
Contact Person,
Level Spreader ID; Z.
Level Spreader Length
Drainage Area
Impervious Area
Maxlmum Filter Strip/Buffer Slope
grass
DWQ Project No. 0-1- 0301
DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET
(please complete the
Al .000-1
it.
ec.
8C,
%
Max. Discharge from a 10 Year Storm .8 .6 cis
Max. Discharge to level Spreader IV. I CIS
Filter Strip/Buffer Vegetation .
Pre-treatment or Bypass Method r
it, REQUIRED ITEMS CHECKLIST
formation):
Phone Number:
No, 9361 P, 6
(perpendicular to flow)
(on-site and off-site drainage to the level spreader)
(on-site and off-elte drainage to the level spreader)
(6% for forested, leaf littler cover, 8% for thick ground cover)'
thick ground coy or grass, canopled.forest with leaf litter
group cover
Initial In the space provided to indicate the following design requirements have been met and supporting documentation is attached. !f a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An Incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
14== Level spreader Is at least 13 it, per cis for thick ground cover or grass or 100 ft per cfs In canopied forest with leaf
litter.
_&11p Pre-Form Scour Holes are on flat slopes only
No structures are located in prolected buffers'
If bypass method specified In the Draft Level Spreader Design Option Document:
Bypass method is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located In protected buffers.
Plan details for the bypass and outlets are provided,
The operation and maintenance agreement Includes annual erosion and vegetation repair.
The operation and maintenance agreement signed and notarized by the responsible party Is provided,
' Level spreaders In series can be used on slopes of up to 15% In forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance In protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area,
Received 05 31 2007 14:32
May-31, 2007 12:17PM
I, PROJECT INFORMA
Project Name :
Contact Person:
Level Spreader ID:
DWO Project No. 01- 0301
DIVISION OF WATER i~!UA',,; IY f,ZVE!. SPREADER WORKSHEET
(please complete the followingI?nformation):
J. 00- -1 A IVAr
Level Spreader Length
Drainage Area
Impervious Area
Maximum Filter StripiBuffer Slope
grass
5-0 ft.
ac.
_ 39 ac.
Max, Discharge from a 10 Year Storm g ON
Max, Discharge to Level Spreader .? cis
Filter StrlplBuffer Vegetation .
Pre-treatment or Bypass Method 7i rt_A ,a7A.+ p;rl
REQUIRED ITEMS CHECKLIST
Phone Number:
No•9361 P. 7
(perpendicular to flow)
(on-site and off-site drainage to the level spreader)
(on-site and off-site drainage to the level spreader)
(B% for forested, leaf littler cover, 6% for thick ground cover)"
1 ck ground cover or ra , canop led forest with leaf litter
groun c
Initial in the space provided to Indicate the following design requirements have been met and supporting documentation is attached. If a
requlremenf has not been met, attach an explanation. of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result In a request for
additional information and will substantially delay final review and approval of the project.
Applicants Inl i Is
--1 &e= -.--Level spreader is at least 13 ft, per cfs for thick ground cover or grass or 100 ft per cfs In canopied forest with leaf
litter.
Pre-Form Scour Holes are on flat slopes only
?A, No structures are located in protected buffers'
If bypass method specified in the Draft Level Spreader Design Option Document:
Bypass method is specifled (If applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located In protected buffers,
Plan details for the bypass and outlets are provided,
The operation and maintenance agreement includes annual erosion and vegetation repair,
The operation and maintenance agreement signed and notarized by the responsible party is provided,
Level spreaders In series can be used on slopes of up to 1 b`?a In forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass if designed according to the Oraft Lovel Spreader Design Option Document, This potentially requires a
minor variance in protected buffer areas. In rany event the second level spreader cannot be located In Zone 1 of a protected buffer area.
Received 05 31 2007 14:33
May-31, 2007 12:18PM
I. PROJECT INFORMA
Project Name :
Contact Person:
Level Spreader ID:.
?c
Level Spreader Length
Drainage Area
Impervious Area
Maximum Filter Strip/suffer Slope
grass
DWQ Project No., D 3 0 1
DIVISION OF WATER QUALITY • LEVEL SPREADER WORKSHEET
(please complete the
S q ft.
%
g
Max, Discharge from a 10 Year Storm Z L cfs
Max. Discharge to Level, Spreader cfs
Filter Strip/Buffer Vegetation
Pre-treatment or Bypass Method ?A C_ =Tx-z 4r,''
II. REQUIRED ITEMS CHECKLIST
Phone Number:
No-9361 P- 8
(perpendicular to flow)
(on-site and off•alte drainage to the level spreader)
(on-site and off-site drainage to the level spreader)
(B% for forested, leaf littler cover, 8% for thick ground cover)'
round cover or ras canopied forest with leaf litter
groundcover
Initial In the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal Includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement, . An Incomplete submittal package will result In a request for
additional information and will substantially delay final review and approval of the project,
A li ants Initials
Level spreader Is at least 13 ft. per cis for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
Pre-Form Scour Holes are on flat slopes only
No structures are located in protected buffers'
If bypass method specified In the Draft Level Spreader Design Option Document:
Bypass method Is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located In protected buffers.
Plan details for the bypass and outlets are provided.
The operation and maintenance agreement Includes annual erosion and vegetation repair,
The operation and maintenance agreement signed and notarized by the responsible party Is provided.
' Level spreaders In series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% In areas
with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document, This potentially requires a
minor varlance In protected buffer areas. In any event the second level spreader cannot be located In Zone 1 of a protected buffer area,
Received 05 31 2007 14:33
Mav,31. 2007 12:18PM
I, PROJECT INFORMAL
Project Name
Contact Person: -1
Level Spreader ID:,
Level Spreader Length
Drainage Area
Impervious Area
Maximum Filter Strip/Buffer Slope
grass
(perpendicular to flow)
(on-site and off-alto drainage to the level spreader)
(on-site and off-site drainage to the level spreader)
(6% for forested, leaf littler cover, S% for thick ground cover)'
is ground cover or gr , canopied forest with leaf litter
groun c
DWQ Project No. 0-7- 0301
N o , 9 3 6 1 P- 9
DIVISION OF WATER QUALITY - LEVEL SPREADER WORKSHEET
(please complete the
Phone Number:
1.7- ft.
.Y ac.
7 eNc.
/D
Max. Discharge from a 10 Year Storm 6 cfe
Max, Discharge to Level Spreader /?- cis
Filter StriplBuffer Vegetation ,
Pre-treatment or Bypass Method
tl. REQUIRED ITEMS CHECKLIST
Initial In the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanatlon of why. At a minimum, a complete stormwater management plan submittal Includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An Incomplete submittal package will result In a request for
additional Information and will substantially delay final review and approval of the project.
A Ilcents Initials
Level spreader Is at least 13 ft, per cfs for thick ground cover or grass or 100 ft per cfs In canopied forest with leaf
litter,
?o Pre-Form Scour Holes are on flat slopes only
No structures are located In protected buffers'
If bypass method specified In the Draft Level Spreader Design Option Document:
Bypass method is specified (if applicable) and plan details and calculations are provided
Discharge to level spreader and subsequent filter strip Is hydraullcally and spatially separate from the bypass
discharge.
No structures are located in protected buffers.
Plan details for the bypass and outlets are provided.
The operation and maintenance agreement Includes annual erosion and vegetation repair.
The operation and maintenance agreement signed and notarized by the responsible party is provided.
Level spreaders In serles can be used on slopes of up to 15% In forested areas with leaf littler cover or on slopes of up to 26% In areas
with thick ground cover or grass If designed according to the Draft Level Spreader Design Option Document. This potentlally requires a
minor variance In protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.
LEVEL SPREADER SYSTEM OPERATION AND MAINTENANCE AGREEMENT (1/2007)
A level spreader system includes: a forebay, diverter box, level spreader, riparian buffer/vegetated filter strip,
and flow bypass channel.
Name of Project: Blalock's Glen Subdivision
Address: The subdivision is located west of the intersection of Starburst Lane (SR 3825) and
Willow Winds Drive in the Brookstone Subdivision, east of Angier Wake County
North Carolina
Maintenance activities shall be performed as follows:
MAINTENANCE ACTIVITY FREQUENCY
Post-construction monitoring-inspect for vegetation, Check after every heavy rainfall for first 6 months
settling, erosion, or concentrated flow. following construction.
Inspect Diverter Box and clean and/or make repairs. Once a month and after heavy rainfalls/storms.
Look for:
• Clogged inlet or outlet pipes.
• Trash/debris in the box.
Inspect Forebay + Level Spreader. Clean and/or Once a month and after heavy rainfalls/storms.
make repairs. Look for:
• Sediment in forebay and along level spreader
lip;
• Trash and/or leaf buildup.
• Scour, undercutting of level spreader.
• Settlement of level spreader structure (no
longer level; you see silt downhill below level
spreader).
• Fallen trees on level spreader.
• #57 stone washing downhill.
Inspect the Riparian Buffer and the Bypass Swale Once a month and after heavy rainfalls/storms.
and make repairs as needed'. Look for:
• Damaged turf reinforcement or riprap rolling
downhill.
• Erosion within the buffer or swale.
• Concentrated flows downhill of level
spreader-look for gullies or sediment flows.
Mow grass to a 6" height. As needed during growing season.
Remove any weeds/shrubs growing on level spreader Once a year.
or in swale.
1 NOTE: Contact NC Division of Water Quality, 401/Wetlands Unit at 919-733-1786 BEFORE any work
in Protected Riparian Buffers.
. Page 1 of 2
LEVEL
SPREADER NO. LOCATION ON SITE (DESCRIBE) HOW WILL IT BE ACCESSED?
1 Back of lots 48 & 49 on Sebring Lane Drainage Easement
2 Back of lot 83 on Punchinello Place Drainage Easement
3 Back of lot 82 on Punchinello Place Drainage Easement
4 Back of lots 72 & 73 on Parizade Street Drainage Easement
5 Back of lot 68 on Allaire Drive Drainage Easement
6
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.
Print name: Dianne Blalock Jones
Title: Owner
Address: 7885 Panther Lake Road, Willow Springs, North Carolina 27592
Phone
Signati
Date:
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, '4 • , a Notary Public for the State of CI)kZ& 17
?
County of do hereby certify that
19,
personally appeared before me this day of , and acknowledge the due
execution of the forgoing wet [wetland] detention bas maintenance requirements. Witness my hand and
official seal,
N?
PU LAC
SEAL
My commission expires
Page 2 of 2
RIP RAP DISSI PATOR #3
HYDRAULIC RESULTS
IDDisc?harge Peak Flow Velocity (fps) Area (sq.fl] Hydraulic Normal
I fdsI Period (his] Racfmfl D th fl
32.9 0.1 1.96 16.83 RGS 0.76
LINER RESULTS
Rockl(Riprap (n=0100)
I I
S-0.0290,
1 L Bottom 1
3.0 Width=20.00 It 30
Not to Scale

Reach Matting Type
StabiFty Analysis Vegetation Characteristics
Permissible
Calculated
Safely Factor
Remarks
Staple Pattern Phase Class Type Density Shear SOess
lP=0 Shear Stress
(ps0
Straight Rock Riprap Unvegelated 4.33 1.31 3.17 STABLE
13in
11,41: rc Input Screen,,
RIP RAP DISSIPATQR #7
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal
(ds) Period Bus) RadusBl) Depth fl
7.0 0.1 1.98 153 0.27 0.30
LINER RESULTS
RockRiprap (n=0100) I
I I
S = 0.1000
1 L Bottom J 1
3.0 Width=11.00 ft 3.0
Not to Scale

Reach Matting Type
Stability Analysis Vegetation Characteristics
Permissible
Calculated
Safely Factor
Remarks
Staple Pattern Phase Class Type Densily Shea Shen
Ipso Shear Stress
IPsB
Straight Rock Floap Unvegetated 4.33 1.85 2.34 STABLE
13in
'?acF: to I rgva[ S creep
RIP RAP DISSIPATOR OPERATION AND MAINTENANCE AGREEMENT
Name of Project: Blalock's Glen Subdivision
Address: The subdivision is located west of the intersection of Starburst Lane (SR 3825) and
Willow Winds Drive in the Brookstone Subdivision, east of Angier, Wake County,
North Carolina
Maintenance activities shall be performed as follows:
MAINTENANCE ACTIVITY FREQUENCY
Post-construction monitoring-inspect for settling, Check after every heavy rainfall for first 6 months
erosion, or concentrated flow following construction.
Inspect Dissipator. Clean and/or make repairs. Look Once a month and after heavy rainfalls/storms.
for:
• Sediment in dissipator;
• Trash and/or leaf buildup.
• Scour, undercutting of rip rap.
• Fallen trees on dissipator.
• #57 stone washing downhill.
Inspect the discharge area and Riparian Buffer and Once a month and after heavy rainfalls/storms.
make repairs as needed. Look for:
• Riprap rolling downhill.
• Erosion within the discharge area or buffer.
• Concentrated flows downhill of dissipator-
look for gullies or sediment flows.
DISSISPATOR
ID LOCATION ON SITE (DESCRIBE) HOW WILL IT BE ACCESSED?
Inlet #3 Willow Winds Drive cul-de-sac Drainage easement
Inlet #7 Seabring Lane cul-de-sac Drainage easement
1 NOTE: Contact NC Division of Water Quality, 401/Wetlands Unit at 919-733-1786 BEFORE any work
in Protected Riparian Buffers.
Page 1 of 2
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.
Print name: Dianne Blalock Jones
Title: Owner
P
S
D
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, Nancy S. Stancil , a Notary Public for the State of North Carolina
County of Johnston , do hereby certify that
Dianne Blalock Jones
personally appeared before me this 14th day of June , 2007 , and acknowledge the due
execution of the forgoing grassed swale maintenance requirements. Witness my hand and official seal,
e?\?enan1is;r41/////
S••.Sr
SEAL My commission expires 7-4-2009
Page 2 of 2
Address: 7885 Panther Lake Road, Willow Springs, North Carolina 27592
-, INSET B , A 1 I A r,. ??
- - ------- ---- ----/ R« Int•td , 555? `????'''''''
n 71
1 l I ?, INSET l
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INSET C
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INSET A
INSET F.t
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JURMIMONAL
INSET G
.rrn¢rsntc77oxet
l
WRTfANW
AAW
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! WA77AN13
BASE MAP AND SURVEY DATA PROVIDED BY
??
STANCIL & ASSOCIATES, PROFESSIONAL LAND
\\
SURVEYOR PA \ = ,;,/ ?\
STORMWATER DESIGN AND ROAD CROSSING
DESIGN PROVIDED BY DEVELOPMENT
CONSULTING SERVICES, INC v//? \\\\ \ \
REVISIONS: SURFACE WATERS & WETLANDS OVERALL IMPACT MAP
ADDED STORMWATER INFORMATION INSETS F & G 6/19/07 BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
••N•• GRAPHIC SCALE DATE: 04/18/07
1" = 300' SCALE: 1" -300'
w EBURDETTE LAND CONSULTING, INC. DRAWN BY: TMB
308-D W Millbrook Road, Suite 200 - Raleigh, North Carolina 27609 300' 0 300' 600' CHK'D BY: JAB
Telephone [phone]-Fax [phone] PROJECT #: 60030
S
FIGURE # 3
-
G R S W A
/.
JURISDICTIONAL
' WETLANDS
-GRASS
; 00 _ SWALE
/ #2
N
GRASS '
SWALE' ' DALE DRS,
S 3NE: APRON IMPACTS
8^,Nx20'Ex24"THk
G SS-/ X50=13" ZONE 1 = 7740 SF
ALE j 0.178 AC
3
ZOA 2 = 2885 SF
0.066 AC
BASE MAP AND SUR E ATA PROVIDED BY CHANNEL = 109LF
STANCIL & ASSOCIATES PROFESSIONAL LAND
SURVEYOR, PA
JURISDICTIONAL
STORMWATER DESI D ROAD CROSSING WETLANDS _ 50 SF
DESIGN PROVIDED 'fJ'EVELOPMENT 0.001 AC
CON.S_ULT1k4'SE`RW-"ES, INC
GRAPHIC SCALE IMPACT MAP N
1"=60'
so' o so' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
•'"N"•- DATE: 04/18/07 CHK'D BY: JAB
'W E'. BURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308 D W Millbrook Road, Suite 200 - Raleigh, North Carolina 27609 6/19/07
.. + S Telephone [phone]- Fax [phone] PROJECT #: 60030 INSET A
X X
ISOLATED
V _I ' 'l ? WETLAND
JURISD IONAL `
WETLA \
1 1. )
1 1
IMPACTS
JURISDICTIONAL
WETLANDS = 321 SF
0.007AC
\ 1 ?, ISOLATED
WETLANDS = 324SF
\ 0.007AC
I ISOLATED
I
WETLAND \
1
I I
/
11511
I BASE MAP AND SURVEY DATA PROVIDED BY
STANCIL & ASSOCIATES, PROFESSIONAL LAND
SURVEYOR,PA
STORMWATER DESIGN AND ROAD CROSSING
DESIGN PROVIDED BY DEVELOPMENT
CONSULTING SERVICES, INC
1, r
GRAPHIC SCALE IMPACT MAP N
V. = 60' BLALOCK'S GLEN SUBDIVISION
60' 0 60'
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
DATE: 04/18/07 CHK'D BY: JAB
W EBURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308D W Millbrook Road, Suite 200-Raleigh, North Carolina 27609 6/19/07
S Telephone [phone]- Fax [phone] PROJECT #: 60030
E I B
i
I I ?-
,
\l I I I (4 9',
LtvEt SPREADER #1
\ I I 119 L.F.
I ?0 PUBLIC
DRAINAGE
/ EASEMENT
1 '
i
(N
i f I
LLJ
N N
1; - ? 40
l BASE MAP AND SURVEY DAT? PROVIDED BY
STANCIL & ASSOCIATES, PRbFESSIONAL LAND
SURVEYOR, PA
' STORMWATER DESIGN AND ROAD CROSSING
DESIGN PROVIDED BY DEVELOPMENT
CONSULTING SERVICES' INC
GRAPHIC SCALE LEVEL SPREADER # I N
1"=s0'
so' o so' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
''••N•••• DATE: 06/05/07 CHK'D BY: JAB
•W E'j BURDETTE LAND CONSULTING, INC. DRAWN BY: 'I'MB REVISED:
308D W Millbrook Road, Suite 200 - Raleigh, North Carolina 27609 6/19/07
Telephone [phone]- Fax [phone] PROJECT #: 60030 INSET C
** + S
93
?f
?o \
9P
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P?f

Ea$_ment
Drain
U
7
Q-
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o
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LE`cL SPREADER
112 L.F.
?

/
/
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/
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WITHIN
WILL R
APPRC
DIMSIC
CONST
i ;
J

50' Riparian Buffer
IKISee Detail
/ BASE MAP AND SURVEY DATA PROVIDED BY
\ STANCIL & ASSOCIATES, PROFESSIONAL LAND
SURVEYOR,PA
STORMWATER DESIGN AND ROAD CROSSI
DESIGN PROVIDED BY DEVELOPMENT
CONSULTING SERVICES, INC ,
GRAPHIC SCALE LEVEL SPREADERS # 2 & 3 N
1"=60'
60' 0 60' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
-''•N DATE: 06/05/07 CHK'D BY: JAB
zw E•, BURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308D W Millbrook Road, Suite 200-Raleigh, North Carolina 27609 6/19/07
S Telephone [phone]- Fax [phone] PROJECT #: 60030 INSET D
LEVEL SPREADS R
it . ?-`? ,
i?
26
I
i
LEVEL SPREADER #5
124 LF. r`
1
20' PUBLIC
OnAINAGE , ) / /'
f LEVEL SPREADER #4- i
`
34 L.F.
BASE MAP AND SURVEY DATA PROVI BY
STANCH- & ASSOCIATES, PROFESSIL ND
SURVEYOR, PA
STORMWATERMSIGN AND ROAD CROSSING
DESIGN PROVIDED BY DEVELOPMENT
CONSULTING SERVICES, INC
GRAPHIC SCALE LEVEL SPREADERS # 4 & 5 N
1"=60'
so' o so' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
''••N•''• DATE: 04/18/07 CHK'D BY: JAB
?W a BURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308D W Millbrook Road, Suite 200 -Raleigh, North Carolina 27609 6/19/07
Telephone [phone]- Fax [phone] PROJECT #: 60030 INSET E
S
r/ 1
? 3/
INLET #7
NV. IN=247.1
DA=1.61 AC
34 ?-

0

33
i
#3(INLET #3)
S
E
LTtNG,SERVI?ES, W4C /
GRAPHIC SCALE
1" = 60' RIP RAP DISSIPATOR # 3 N
60' 0 60' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC I _r
FUQUAY-VARINA, WAKE COUNTY, NC
''??N??'• DATE: 04/18/07 CHK'D BY: JAB
w E BURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308D W Millbrook Road, Suite 200 -Raleigh, North Carolina 27609 6/19/07
S Telephone [phone]- Fax [phone] PROJECT #: 60030 INSET F
GRAPHIC SCALE RIP RAP DISSIPATOR # 7 N
1"=60'
60' 0 60' BLALOCK'S GLEN SUBDIVISION
TRIPLE J DEVELOPMENT, LLC
FUQUAY-VARINA, WAKE COUNTY, NC
'...N..'• DATE: 04/18/07 CHK'D BY: JAB
w E'3 BURDETTE LAND CONSULTING, INC. DRAWN BY: TMB REVISED:
308D W Mil [brook Road, Suite 200-Raleigh, North Carolina 27609 6/19/07
Telephone [phone]- Pax [phone] PROJECT #: 60030
S
INSET G