HomeMy WebLinkAbout20081230 Ver 1_More Info Received_20080902Michael F. Easley. Governor
William G. Ross Jr., Secretary
North Carolina Depaartrnent of Environment and Natural Resources
Cohen H. Sullins, Director
Division of Water Quality
August 21, 2008
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Ms. Edith W. McGuinn
13033 Powell Road
Wake Forest, NC 27587
DWQ Project # 08-1230
W ke County
NSF P 2 2008
ptNR -''RI ER QU#IFY
VETIN'OS tWO STORMWATER BRANCH
Subject Property: Watldea Glee
Ut to Falls Lake/ft to Lowery Creek [030401, 27-16.7-(2), WSIV, NSW, CA]
REQUEST FOR MORE INFORMATION
Dear Ms. McGuinn:
On August 13, 2008, the Division of Water Quality (DWQ) received your application dated August 5,
2008, to fill or otherwise impact 79 linear feet of intermittent stream and 3,240 square feet of Zone I
Neuse River basin protected riparian buffers and 2,000 square feet of Zone 2 Neuse River basin protected
riparian buffers to construct a residential development at the site. The DWQ has determined that your
application was hwmnplete and/or provided inaccurate information as discussed below. The DWQ will
require additional information in order to process your application to impact protected wetlands and/or
streams on the subject property. Therefore, unless we receive five copies of the additional information
requested below, we will place this project on hold as hwAmplete until we receive this additional
information. Ifwe do not receive the requested information, your project will be formally returned as
incomplete. Please provide the.following information so that we may continue to review your project.
Additional Information Requested:
1. Please re-submit your site plans on full plan sheets at a scale of no smaller than 1 "=50' with
topographic contours shown.
2. Please provide building envelopes for all lots with wetlands, streams or buffers on the site plans.
3. Please locate all isolated or non-isolated wetlands, streams, and other waters of the State as
overlays on the site plan.
4. Please locate all of the protected riparian buffers as overlays on the site plan, clearly showing
Zone I and Zone 2.
5. Per the requirements of the Neuse River Basin Riparian Buffer Rule, you must show that this site
meets diffuse flow requirements with a level spreader or other BMP per Chapter 8 of the BMP
Manual (see hLtp://h2o.enr.state.ne.us/su/bmp forms.htm).
NonehCarolina
401 Oversight/Express Review Permitting Unit yawn li;
1650 Mail Service Center, Raleigh North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Rale*k North Carolina 27604
Pleme: 919-733-1786 / FAX 919-7336893 / Internet: fhtpJAr2o.ew atate.nc.us/ncwcdands
._ ... i. m _.-. _...._ • ?.... r...-f-.._ CA"
Ms. Edith W. McGuinn
Page 2 of 2
August 21, 2008
6_ Please provide proposed septic fields on all lots with buffers or wetlands showing that additional
buffer andfor wetland impacts will not be required.
Please submit this information within 30 calendar days of the date of this letter. If we do not receive this
requested information within 30 calendar days of the date of this letter, your project will be withdrawn
and you will need to reapply with a new application and a new fee.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters
or protected buffers. Please .be aware that any impacts requested within your application are not
authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-
1786 if you have any questions regarding or would like to set up a meeting to discuss this matter.
Sincere ,
Cyndi Karoly, Supervisor
401 Oversight/Express Review Permitting Unit
CBKlym
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
USACE Raleigh Regulatory Field Office
File Copy
Central Files
Filename: 081230WatkinsG1en(W ake)On_Hold
OaOF W A r£9?G
M g
? y
ATA O c
NWENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
Project name Watkins Glen
Contact name Trenton D. Stewart, PE
Phone number 919-363-1422
Date April 30, 2008
Drainage area number 1
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown flow from the BMP
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a grassed bioretention cell?
To a mulched bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level 10
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per ds
Answer "Y" to one of the following
sq ft
65 fuds
Length based on the 1 in/hr storm? (Y or N)
Length based on the 10-yr storm? Y (Y or N)
Length based on the BMP discharge rate? (Y or N)
Design flow 0.26 cfs
Is a bypass device provided? N (Y or N)
cfs
3,860.00 ft'
1,350.00 ft'
34.97 %
0.40
0.04 cfs
5.00 min
7.22 in/hr
026 cfs
N (Y or N)
N (Y or N)
N (Y or N)
Y (Y or N)
Please complete filter strip characterization below.
0.00 ft
0.00 ft
50.00 ft
50.00 ft
425.00 fmsl
420.00 fmsl
10.00 %
N (Y or N)
Level spreaders must be placed in series.
OK
A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and ll. Design Summary, page 1 of 3
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
16.70
N (Y or N)
(Y or N)
(Y or N)
Level spreader length OK.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5 Parts I. and H. Design Summary, page 2 of 3
M ft
B ft
w ft
y ft
Peak velocity in the channel during the 10-yr storm cfs
Channel lining material
w
M
B
Do not compete this section of the worksheet.
Do not compete this section of the worksheet.
Do not compete this section of the worksheet.
Do not compete this section of the worksheet.
Do not compete this section of the worksheet.
Do not compete this section of the worksheet.
M
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 3 of 3
p ?' ? ?3 ? o?QF warFAPAA
o
> y
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
P
Project name Watkins Glen
Contact name Trenton D. Stewart, PE
Phone number 919-363-1422
Date April 30, 2008
Drainage area number 2
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area 18,865.00 ft'
Impervious surface area 5,410.00 ftz
Percent impervious 28.68 %
Rational C coefficient 0.43
Peak flow from the 1 inlhr storm 0.19 cfs
Time of concentration 5.00 min
Rainfall intensity, 10-yr storm 7.22 in/hr
Peak flow from the 10-yr storm 1.34 cfs
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? N (Y or N)
To a mulched bioreteMlon cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? Y (Y or N) Please complete filter strip characterization below.
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 0.00 ft
Width of dense ground cover 0.00 ft
Width of wooded vegetation 50.00 ft
Total width 50.00 It
Elevation at downslope base of level 10 427.00 fmsl
Elevation at top of bank of the receiving water 420.00 fmsl
Slope (from level lip to to top of bank) 14.00 % Level spreaders must be placed in series.
Are any draws present? Y (Y or N) Level spreader cannot be located upslope of a draw.
Level Spreader Design
Forebay surface area sq ft
Feet of level lip needed per ds; 65 ftlcfs
Answer "Y" to one of the following:
Length based on the 1 inlhr storm? (Y or N)
Length based on the 10-yr storm? Y (Y or N)
Length based on the BMP discharge rate? (Y or N)
Design flow 0.19 cfs
Is a bypass device provided? N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 of 3
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
88.00 It Level spreader length OK.
(Y or N)
(Y or N) Do not complete this section of the worksheet.
(Y or N) Do not compete this section of the worksheet.
Do not complete this section of the worksheet.
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev5 Parts I. and II. Design Summary, page 2 of 3
M
B
W
Y
Peak velocity in the channel during the 10-yr storm
Channel lining material
1
M
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
cfs Do not complete this section of the worksheet
Do not complete this section of the worksheet
w
B
1
M
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 3 of 3
McGuinn Subdivision
Lot #1
5-Bedr-oom System Layout
141 ' SCH 40 2" Supply Line
TBM -3).9
ea
Gl
System: Pressure Manifold
Lines: 6-8, (510')
Accepted Status System
0.3 Soil LTAR
18" Trench Bottom
Repair: Pressure Muni+ old
Lines: 1-5, (500')
Accepted Status System
18" Trench Bottom
0.3 Soil LTAR
GRAPHIC SCALE
1 " _- 50'
50 0 50 100
Central Carolina
:S.-it horr zuf -ting
919-7;34- x+44"
Project It 46?
f-0' Well Access Easement
NEW 6" WATER LINE
17
McGuinn Subdivision
Lot #3
S-Bedroor, System Layout
7
1j
106.327 SF
2.44 AC
f.
GRAPHIC SCALE
1 " = 100'
System: Pressure Manifold
Lines: 7 -1 (5 "1
Accepted Status Sv'_:i finl
0.3 Soil LTAR
18" Trench Botton s
Repair: Pressurr- it. oriffold
Lines: 1 -G, (50()')
Accepted Stati.rs "??vstem
0.3 Soil LTAR
18" Trench Bottom
100 0 100 200
Central Co.roliv
Sr}il Cnr??r.rltir?r?
919-784 -9449
Prey jec t # 467
McGuinn Subdivision
Lot #4
)-Bedroom System Layouit
101,248 SF
2.32 AC
"House
-*?~ -0 2' 5,pqoy `"` ?fBhd 3.1
GRAPHIC SCALE
1 " = 100'
System: Pressure t`?_lnil?::ylci
Lines: 5 b-8, (5, )')
Accepted Status Sv :Ii,n^.
0.3 Soil LTAR
18" Trench Bottom
Repair: Pressure Manifold
Lines: 'I -5a, ( 50 1 ')
Accepted Status System
0.3 Soil LTAR
18" Trench Botton-
100 0 100 200
i
Sr?it E OIISt0Plt]
1411:.4 -7.4-9449
Pro iect # 467
McGuinn Subdivision
Lot #5
5-Bedroom Slystem Layout
i
112,051 SF
2.5 AC
jt1
ct'
System: PreSSUre ` cinifold
Lines: 7 -1-1, (51.'; v;'
Accepted Status SV:;-t,: rn
0.3 Soil LTAR
18" Trench Bottom
Repair: Pressure Manifold
Lines: 1 -G, (501. )
Accepted Status `"Ystern
0.3 Soil LTAR
18" Trench Bottom
GRAPHIC SCALE
1 " = 100'
100 0 100 200
_-,o;f Consul tit 19
91_1-7,34-9449
Project # 467
McGuinn Sub divisors
Lot 6
4-Bedroom System Layout
f'
System: Pump to D--Pyc",
Lines: 5-8:. (400')
Accepted Status System
0.3 Solt L TAR
18" Trench Botton
Repair Presst_tre Manil`cttcl
Line,5: 1-4. f402';
Accepted `: to tus. Sy-. t!-n
18" Trench Bottorff
0.3 Soil LTAF
0
m
T1-
?i
71
F9
III' SCH 40 2" Supply
GRAPHIC SCALE
1 " = 60'
J?
1 DDi
Proposed
House
Location
l?
10
,?00
0
U B.]
1? 0(
?6 fed ,0
h ?e v0-
0
Ropo?
Goco4a?
No foundation di aln_.
60 0 60 120
J ?
t f/
a
D
o
oaOn
7 4 0
? O
h ?
b
0?C9e
00
186,348 SF
T ? 8 IB C
P op?J
?h it`d
(ono oq.
60'0
PCIPULA
41 CGLA inn Lab(1ivis i(.) I
Lot -44-Bedroom 1; )y s±t,1"-I L ,.?-,l
No foundation dre;ins
System: Grovity ro D-l:?ox
Lines: 4-5, (400')
Accepted Status `_Sysf.;- ,
0.3 Soit L T AR
18" Trench Bottom
Repair: Pressure more l-Ad
Lines 1-3, 6, C4RM
Accepted Status Sv-. r r
18" Trench Bottorff
0.3 Soil LTAR
GRAPHIC SCALE
50 0 50 100
Central Carolina
SON corrsoting
919-724-9449
Project 4 467
MclAt'linn Subdivision
Lot #8
S--Lcdr-oom System Layout
116 Pink 10100"
15 ven 200
?s
C9
79,939 SF
1.84 AC
Proposed
House
an.%
rxa?? Location
•15' SCH 10 'iupph tine
System: F'ressut-e h'o t,i?;_lcl
Lines: 1--3, 11500'
Accepted Status
0.3 Soil LTAR
18' Trench Bottom
Repair: Pressur-e Mat it'rr:c
Lines: 4-6. (500'
Accepted Status Syst r,
18" Trench Bottom
0.3 Soil LTAR
GRAPHIC SCALE
1 " = 60'
60 0 60 1?0
Ff_rtl-ol cor otino
Pr°:, jct it 4?7
Mcvuinn Subdivision
Lot #9
5-Beelroom System Layout
)?l0
77.,.
JJ Pink 145- -,.Z-
r/4 Red 150'
'5 Oron e 125
#6 Yellow 112255'
60' SCH 40 2" Supply Line ea 7 Slue 12 ,'
d$ Pink ::'S'
a
I e? rorp.
ro
?O
Proposed \
House ooa
Locotion
66,41 7 SF
1.53 AC
System- Pump to D-Br..
Lines 5-8, -:500'?
Accepted Status Sys t. rF-r
0.3 Soit LTAR
18" Trench Bottom
Repair: Pump to D-Bc-
Lines: 1-4, C505'?
Accepted Statu=. Sv }em
18" Trench Bottom
0.3 Soit LTAR
GRAPHIC SCALE
1 ' = 60'
60 0 60 120
cen h-cit crarolino
'Soit coPlsultirrg
919-764-9449
Project N 467
McGuinn Subdi'vi-iori
Lot ?k10
5---Bedroom System Layout:
190' Sd/ 40 Supply L-
i?
i?
Proposed
House
Location
f
77,381 SF
1.78 AC
System: Pressur Morlifvl+
Lines: "1 -5
Accepted Statusysker??
0.3 Soil LTAR
18" Trench Bott,_:,11-1
Repair: Pressur, MoniEold
Lines: 0-10, ? 0 0')
Accepted Stott-is System
0.3 Soil l_tAl
"18" Trench Bottom
GRAPHIC SCALE
1 " = 100'
100 0 100 200