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Form Version March OS
USACE Action ID No. DWQ No. ~~ _ ~ ~~~
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
^ Section 404 Permit ® Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
^ 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: Buffer Compliance
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ^
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ^
IL Applicant Information
Owner/Applicant Information
Name: Glen Lake Groin LLC Attn: Term Stephens
Mailing Address: 8310 Bandford Way
Raleigh NC 27615
Telephone Number: 57l -8263 Fax Number: 571-1521
E-mail Address: terryna creedmorpartners.com
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Todd Preunin~er
Company Affiliation: Withers & Ravenel
Mailing Address: 114 MacKenan Drive
Cart/ NC. 27511
Telephone Number: 919-469-3340 Fax Number: 919-535-4545
E-mail Address: tpreuninger(a~withersravenel.com
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
Page 1 of 8
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Glen Lake Subdivision, Phase 2 & 3
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN): 079174305, 079176123. 079178688
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): Glen Lake Subdivision Phase 2 & 3
Directions to site (include road numbers/names, landmarks, etc.):The site is located on the
western side of Blue Ridge Rd ASR 1670) at the intersection of Glen Eden Drive and Blue
Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.8310321°N ; 78.6898208°W
6. Property size (acres)
18 acres
7. Name of nearest receiving body of water: Crabtree Creek
8. River Basin: Neuse River Basin
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is currently wooded and is surrounded by
residential housing.
10. Describe the overall project in detail, including the type of equipment to be used:
Construction of by-pass swales for the level spreaders. The overall project is construction of
a residential subdivision. Typical heavy equipment, such as excavators will be utilized to
install the infrastructure.
Page 2 of 8
11. Explain the purpose of the proposed work: The project is intended to meet the rg owing
demand for housing in the area.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. Wetlands were delineated bySoil and Environmental Consultants and a
site meeting was conducted with the NC-DWQ on August 21, 2000 (DWQ NBRRO 00-209) to
verify stream origin points. The buffer letter is included with the attachments.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No additional impacts are proposed at this time.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: The proposed permanent impacts
consist of 1,033 SF of zone l and 724 SF of zone 2 buffer impact for the installation of level
spreader bypass swales. No wetland or stream impacts are proposed for the project.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding.
Page 3 of 8
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) (yesMo) (linear feet)
1 Fill Forested NO 150 LF 0.02
Total Wetland Impact (acres) 0.02
3. List the total acreage (estimated) of all existing wetlands on the property: ~ 0.5 acres
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Stream Impact
Perennial or Average impact Area of
Number Stream Name Type of Impact
Intermittent? Stream Width Length Impact
(indicate on map) Before Impact (linear feet) (acres)
NA NA NA NA NA NA NA
Total Stream Impact (by length and acreage) NA NA
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredgin , floodin , draina e, bulkheads, etc.
Open Water Impact
Name of Waterbody Type of Waterbody Area of
Site Number
(if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on map) ocean, etc.) (acres)
NA NA NA NA NA
Total Open Water Impact (acres) NA
6. List the cumulative impact to all Waters of the U.S. resulting from the proiect:
Stream Impact (acres): NA
Wetland Impact (acres): NA
Open Water Impact (acres): NA
Total Impact to Waters of the U.S. (acres) NA
Total Stream Impact (linear feet): NA
7. Isolated Waters
Do any isolated waters exist on the property? ^ Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
Page 4 of 8
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): NA
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): NA
Current land use in the vicinity of the pond: NA
Size of watershed draining to pond: NA Expected pond surface area: NA
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. The site plan was developed
such that no wetlands or streams were impacted by the proposed development. However, in
order to comply with the level spreader design guidelines, impacts to the buffer could not be
avoided. The applicant also utilized a retaining wall at the back of the Townhomes to minimize
impacts, but due to site constraints, a small portion of wetlands was impacts for the installation
of a level spreader.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
Page 5 of 8
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strmgide. html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Because the wetland impacts are less than 0.1 acres and there are no stream impacts,
mitigation is not proposed.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
(919) 715-0476 to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): NA
Amount of buffer mitigation requested (square feet): NA
Amount of Riparian wetland mitigation requested (acres): NA
Amount ofNon-riparian wetland mitigation requested (acres): NA
Amount of Coastal wetland mitigation requested (acres): NA
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? ~ Yes ^ No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether aNEPA/SEPA document is required, call the SEPA
coordinator at (919) 733-5083 to review current thresholds for environmental documentation.
Yes ^ No
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No
Page 6 of 8
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 1 SA NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ^
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact Multi Tier Required
i..,.......o c ot~ P r,r;.;,..,.;,,,,
1 1,329 3 (2 for Catawba) NA
2 1,152 1.5 NA
Total 2,481 NA
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. Because the bypass swale is an allowable
activity, buffer mitigation is not required.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater
controls proposed in order to protect surface waters and wetlands downstream from the property. If
percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed
impervious level. The proposed impervious surface for this project will be greater than 30%, however,
because 401 certification is not, we do not believe that apre-approved stormwater mana e~plan is
required. The applicant will provide diffuse flow into the buffers via level spreaders.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sanitary Sewer
Page 7 of 8
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (1 SA NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Is this an after-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: We do
not believe the applicant will be required to comply with the phase II stormwater rules and will
retain the riparian buffers on-site, therefore we do not believe that this project will have a
negative effect on down stream water quality.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
~~
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 8 of 8
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NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled ouf on line, printed and submitted with all of the required information.
Make sure to also fill ouf and submit the Required Items Checklist (Parf Ill) and the I&M Agreement (Part ll~
I. PROJECT INFORMATION
Project name Glenlake SID, Phases 2 & 3
Contact name Kenneth Jesneck, PE
Phone number 469-3340
Date
Drainage area number
September 27, 2007
LS 50A
II; DESIGN INFORMATION ~~ a, .... ~ '~ -, , ",'
For Level Spreaders Receiving Flow From a BMP
Type of BMP Level Spreader
Drawdown flow from the BMP cfs
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
Rainfall intensity, 10-yr, 24-hr storm
Peak flow from the 10-yr, 24-hr storm
Where Does the Level Spreader Discharge?
To a 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
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 cfs
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Are level spreaders in series?
Length of the level lip
Bypass Channel Design (if applicable)
3.24 ac
1.57 ac
48.46
0.5
2.32 cfs
0.21 inlhr
cfs
N (Y or N)
N (Y or N)
Y (Y or N) Please complete filter strip characterization below.
0 ft
0 ft
50 ft
50 ft
2
N (Y or N)
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1
70 sq ft
65 ftlcfs
Y (Y or N)
N (Y or N)
N (Y or N)
2.32 cfs
N (Y or N)
N (Y or N)
130 ft
Level spreader cannot be located upslope of a draw.
A bypass device is not needed.
#VALUE!
Level spreader is not long enough.
C''
Parts I. and II. De gn Summary, page 1 of 2
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle (if applicable)?
Dimensions of the channel (see diagram below):
M
B
W
Y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
(Y or N)
ft
ft
ft
ft
cfs
t ~-----------
M
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 2 of 2
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NCDENR
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled out online, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Ifems Checklist (Part III) and the I &M Agreement (Part 11~
I. PROJECT INFORMATION
Project name Glenlake SID, Phases 2 & 3
Contact name Kenneth Jesneck, PE
Phone number 469-3340
Date September 27, 2007
Drainage area number LS 50B
Ih DESItaN lNF4RMIATION , . _ . , , .. ., .: ,_e ., a .. .. ,
For Level Spreaders Receiving Flow From a BMP
Type of BMP Level Spreader
Drawdown flow from the BMP cfs
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
Rainfall intensity, 10-yr, 24-hr storm
Peak flow from the 10-yr, 24-hr storm
Where Does the Level Spreader Discharge ?
To a 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
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 cfs
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Are level spreaders in series?
Length of the level lip
Bypass Channel Design (if applicable)
1.85 ac
p 1
0.178 ac a~~~ ~~ c.,c.,~,+rs ~°~ t r'n ~.t v t as°~c5,,
47.57 1 a~,~~c~ N y~~F ~....}. ~~4. r.~,,,,
0.5 ~'
1.33. cfs r-' ~p~~~~C~(~ c,°ve~
0.21 in/hr~-- S~'~ ~ Y~~
0.19425 cfs
N (Y or N)
N (Y or N)
Y (Y or N) Please complete filter strip characterization below.
50 ft F~ t? ,' ~ ~'~~° ~~ ~ ~Cr NS
_____- ~~X-..
1.67
N (Y or N) level spreader cannot be located
40 sq ft
65 ft/cfs
Y (Y or N)
N (Y or N)
N (Y or N)
1.33 cfs
N (Y or N)
(Y or N)
74 ft
a ~~
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1
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A bypass device is not needed.
#VALUE!
Level spreader is not long enough
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~~~ Parts I. aritlUr. Design Summary, e
1 of 2
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle (if applicable)?
Dimensions of the channel (see diagram below):
M
B
W
Y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
(Y or N)
ft
ft
ft
ft
cfs
M
• B
----+ ~
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 2 of 2
~~~
NCDENR
469-3340
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Part III) and the I&M Agreement (Part III
I. PROJECT INFORMATION ~ ,~~ ~'t
Project name Glenlake SID, Phases 2 & 3
Contact name Kenneth Jesneck, PE
Phone number
Date
Drainage area number
September 27, 2007
FES 40
IL ,DESIGN INFORMATION.`.; _ .
For Level Spreaders Receiving Flow From a BMP
Type of BMP Level Spreader
Drawdown flow from the BMP cfs
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
Rainfall intensity, 10-yr, 24-hr storm
Peak flow from the 10-yr, 24-hr storm
Where Does the Level Spreader Discharge?
To a 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
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 cfs
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Are level spreaders in series?
Length of the level lip
Bypass Channel Design (if applicable)
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0.58 ac
0.45 ac
77.59
0.8
0.45 cfs
0.21 in/hr
0.09744 cfs
(Y or N)
(Y or N)
(Y or N) Please complete filter strip characterization below.
0 ft
0 ft
50 ft
50 ft
5.71
N (Y or N) Level spreader cannot be located upslope of a draw.
19.25 sq ft OK
65 ftlcfs
Y (Y or N)
N (Y or N)
N (Y or N)
0.45 cfs
N (Y or N) A bypass device is not needed.
N (Y or N) #VALUE!
9 ft Level spreader is not long enough.
~'L ~ • ~1 S 7( ~l S ~ 2
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 1 of 2
Does the bypass discharge through a wetland? (Y or N)
Does the channel enter the stream at an angle (if applicable)?
Dimensions of the channel (see diagram below):
M ft
B ft
W ft
y ft
Peak velocity in the channel during the 10-yr, 24-hr storm cfs
Channel lining material
1 uv
M
~ B ~
1
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 2 of 2
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NCDENR
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be tilled out on line, printed and submitted with all of the required information.
Make sure to also till out and submit the Required Items Checklist (Part III) and the I &M Agreement (Parf III
1: PROJECT INFORMATION`
Project name Glenlake SID, Phases 2 & 3
Contact name Kenneth Jesneck, PE
Phone number 469-3340
Date
Drainage area number
September 27, 2007
FES 10
II, DESIGN INFORMATIQN _ ." ~:
For Level Spreaders Receiving Flow From a BMP
Type of BMP Level Spreader
Drawdown flow from the BMP cfs
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
Rainfall intensity, 10-yr, 24-hr storm
Peak flow from the 10-yr, 24-hr storm
Where Does the Level Spreader Discharge?
To a 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
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 cfs
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Are level spreaders in series?
Length of the level lip
Bypass Channel Design (if applicable)
1.4 ac
1.14 ac
81.43
0.8
1.14 cfs
021 inlhr
0.2352 cfs
N (Y or N)
N (Y or N)
Y (Y or N) Please complete filter strip characterization below.
0 ft
0 ft
50 ft
50 ft
2.14
N (Y or N) Level spreader cannot be located upslope of a draw.
49.5 sq ft OK
65 ft/cfs
Y (Y or N)
N (Y or N)
N (Y or N)
1.14 cfs
N (Y or N)
N (Y or N)
ft
A bypass device is not needed.
#VALUE!
Level spreader is not long enough.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 1 of 2
Does the bypass discharge through a wetland? (Y or N)
Does the channel enter the stream at an angle (if applicable)?
Dimensions of the channel (see diagram below):
M ft
B ft
W ft
y ft
Peak velocity in the channel during the 10-yr, 24-hr storm cfs
Channel lining material
Y ~ t
-------------
M M
B
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 2 of 2
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STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Part III) and the I&M Agreement (Part IV)
I. PROJECT INFORMATION ~' ~'`'
Project name Glenlake SID, Phases 2 & 3
Contact name Kenneth Jesneck, PE
Phone number 469-3340
Date
Drainage area number
September 27, 2007
FES 20
II. DESIGN INFORMATION `
For Level Spreaders Receiving Flow From a BMP
Type of BMP Level Spreader
Drawdown flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 inlhr storm
Rainfall intensity, 10-yr, 24-hr storm
Peak flow from the 10-yr, 24-hr storm
2.34 ac
1.69 ac
72.22
0.7
1.7 cfs
0.21 in/hr
0.34398 cfs
Where Does the Level Spreader Discharge?
To a 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
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 cfs
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Are level spreaders in series?
Length of the level lip
Bypass Channel Design (if applicable)
N (Y or N)
N (Y or N)
Y (Y or N) Please complete filter strip characterization below.
50 ft
50 ft
5.89
N (Y or N) Level spreader cannot be located upslope of a draw.
75 sq ft OK
65 ft/cfs
Y (Y or N)
N (Y or N)
N (Y or N)
1.7 cfs
N (Y or N) pass device is not needed.
N (Y or N #VALUE!
111 ft Level spreader length OK.
1.7x1.5-1/0.x"
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.1 Parts I. and II. Design Summary, page 1 of 2
Does the bypass discharge through a wetland? (Y or N)
Does the channel enter the stream at an angle (if applicable)?
Dimensions of the channel (see diagram below):
M ft
B ft
W ft
y ft
Peak velocity in the channel during the 10-yr, 24-hr storm cfs
Channel lining material
M
B
' 1
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.t Parts I. and II. Design Summary, page 2 of 2