HomeMy WebLinkAbout20060770 Ver 1_401 Application_20060505
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Soil & Environmental Consultants, PA
11010 Raven Ridge Road Raleigh, North Carolina 27614 Phone: (919) 846-5900 Fax: (919) 846-9467
www.SandEC.com May 5, 2006
S&EC Project # 2939.W3
To: US Army Corps of Engineers
Raleigh Regulatory Field Office
Attn: Monte Mathews
6508 Falls of the Neuse Rd
Suite 120
Raleigh, N.C. 27615
From: Debbie Edwards
Soil & Environmental Consultants, P.A.
11010 Raven Ridge Road
Raleigh, NC 27614
Re: Louis Stephens Drive
Cary, Wake County, NC
NC Division of Water Quality
401 Oversight and Express Permits Unit
Attn: Cyndi Karoly
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
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On behalf of the owners, Town of Cary (Attn: Tim Bailey), please find attached a complete application and
supplemental information requesting written concurrence from the U.S. Army Corps of Engineers (USAGE) and the
North Carolina Division of Water Quality (NC-DWQ) that the activities proposed below may precede utilizing
Nationwide Permits 14 and Water Quality Certification 3404. In addition, written authorization from the NC-DWQ is
requested for activities proposed to impact Neuse River Buffers. Please contact me at (919) 846-5900 if you have any
questions or require additional information.
PROJECT SUMMARY
Project Name Louis St hens Drive
Project T e Linear Road Project
Owner / A licant Town of Ca
Coun Wake
Nearest Town C
Waterbod Name UT to Crabtree Creek
Basin /Sub-basin 03-04-02
Index Number 27-33- 1
Class C; NSW
IMPACT SUMMARY
Stream Impact (acres): 0.04
Wetland Impact (acres): 0.45 (permanent)
0.14 (temporary)
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.63
Total Stream Impact (linear feet): 164
Total Riparian Buffer Impacts (square feet): 17,503
Attachments:
Pre-construction Notification (PCN) Application Form
USGS Vicinity Map (figure 1)
Wake County Soil Survey (figure 2)
Photos of Impact Area (2)
Level Spreader Worksheets and Operations & Maintenance Agreements (DWQ
Detailed Impact Maps (11x17)
Con Span Design Details (11 x 17)
Detailed Impact Maps (24x36-DWQ only)
$475.00 Water Certification Fee (DWQ only)
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Charlotte Office:
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: (704)720-9405
Fax: (704)720-9406
Greensboro Office:
3817-E Lawndale Drive
Greensboro, NC 27455
Phone: (336) 540-8234
Fax: (336)540-8235
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Office Use Only: 2 o OFo6 VOersi~on M~ar'c~h OS
USACE Action ID No. DWQ No. '1 ~
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I. Processing ~ ' ' "'"~ "
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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: NWP 14
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 he~ D
II. Applicant Information ~ ~~
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1. Owner/Applicant Information
Name: Town of Carv (Attn: Tim Bailey~C~,~~R,. p'f~R_~?u! ~~ o ~,~~
Mailing Address: 318 North Academy Street y~N+NDSl+N~S~
PO Box 8005
Carv, NC 27513
Telephone Number: (919) 469-4030 Fax Number: (919 460-4935
E-mail Address:
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: Debbie Edwards
Company Affiliation: Soil & Environmental Consultants, PA
Mailing Address: 11010 Raven Ridge Road
Raleigh, NC 27614
Telephone Number: (919) 846-5900 Fax Number: (919) 846-9467
E-mail Address: dedwards(cr~sandec.com
Page 1
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
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: Louis Stephens Drive Project
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 0744094778
4. Location
County: Wake Nearest Town: Cary
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): The proposed thorou hfare
is located near the northeast corner of Heritage Pines Subdivision, between two existing stubs
of Louis Stephens Drive in the Morrisville/Carpenter area.
5. 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): 35.8108°N 78.8639°W
6. Property size (acres): N/A-linear road project
7. Name of nearest receiving body of water: UT to Crabtree Creek 27-33-(1), C; NSW
8. River Basin: Neuse 03-04-02
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://112o.enr.state.nc.us/admi»/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 location of this proposed impact is within a Piedmont
semi-permanent impoundmentBottomland Forest. The general land use in the vicini _ of the
proposed impact is residential development.
Page 2
10. Describe the overall project in detail, including the type of equipment to be used: The
proposed protect is to construct a two lane road to connect the existing stubbed-out sections
of Louis Stephens Drive Cary NC This project will include permanent and temporary
impacts to a perennial stream, wetlands and riparian buffers resulting from the installation of
the road, Sedimentation & Erosion Control measures and a utility crossing. Heavy
equipment typically used for road construction will be employed for this project.
11. Explain the purpose of the proposed work:-. The purpose of .the proposed work is to
construct the remaining segment of the Louis Stephens Road to complete the thorou hfare
connection from Morrisville Parkway through to Carpenter Upchurch Road.
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. The original detailed wetland delineation was conducted by S&EC in
May of 1997 for the surrounding_property which includes the proposed location of Louis
Stephens Road. This segment is the remaining_portion of the Louis Stephens Road thoroughfare
to be completed to connect Morrisville Parkway to Carpenter Upchurch Road (see Fi ug re 1~ In
February 2005, S&EC submitted an application for this project to the USACE and the NC-
DWQ. The USACE determined that the application was incomplete agreed that the proposed
work would be considered a separate and complete project (not associated with the adjacent
Heritage Pines development), and advised the applicant to submit it as such with the Town of
Cary as the applicant and to use the previously approved 1997 wetland delineation. In addition
the NC-DWQ also requested additional information (February 17 2005 DWQ#OS-0278 and
agreed with the USACE's above approach. (The Individual Permit review process on the
adjacent Heritage Pines Development is near completion (USACE AID# 200520456 and
NC-DWO Project # OS-0278 and approvals are anticipated soon.)
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.
This proposed activity should complete the connection between Morrisville Parkway and
Carpenter Upchurch Road, no future permits are anticipated 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
Page 3
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: Permanent impacts resulting from this
proposed road construction consist of 164 linear feet of perennial important stream channel
and 0.45 acres of wetlands. Temporary impacts resulting from the road construction a
sanitary sewer line and sedimentation and erosion control measures consist of 0 14 acres of
wetlands. All temporary impacts within jurisdictional areas will be brought back to the
original grade and re-vegetated with a wetland seed mix.
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.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year Nearest Impact
(indicate on map) herbaceous, bog, etc.) Floodplain Stream (acres)
es/no linear feet)
Temporary- piedmont Semi-permanent
Site 1 Sedimentation & ImpoundmentBottomland no 0 0
14
Erosion Control Forest .
Measures
Permanent-road Piedmont Semi-permanent
Site 1 ImpoundmentBottomland no 0 0.45
crossing
Forest
Total Wetland Impact (acres) 0.59
3. List the total acreage (estimated) of all existing wetlands on the property: +/- 2 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
5. must be included. To calculate acreage, multiply length X width, then divide by 43,560.
Page 4
Stream Impact
Perennial or Average Impact Area of
Number Stream Name Type of Impact Stream Width Len th Im act
p
indicate on ma Intermittent? Before Im act Linea f eet res
ac
Site 1 UT to Crabtree Permanent-culvert,
Creek dissipater & Perennial +/_ 10, 164' 0.04
concrete pad
Total Stream Impact (by length and acreage) 164' 0.04
6. 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, dredging, flooding, drainage, 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 ma ocean, etc. acres
N/A N/A N/A N/A N/A
Total Open Water Impact (acres) N/A
7. List the cumulative impact to all Waters of the U.S. resulting from the nroiect:
Stream Im act (acres): 0.04
Wetland Impact (acres): 0.59
O en Water Im act (acres): 0
Total Im act to Waters of the U.S. (acres) 0.63
Total Stream Im act (linear feet): 164
*0.49 acres Permanent & 0.14 acres Temnorarv Wetlands Impacts
8. 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.
9. 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.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A
Current land use in the vicinity of the pond: N/A
Size of watershed draining to pond: N/A Expected pond surface area: N/A
Page 5
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. S&EC completed a detailed,
wetland delineation to aid in developing a site plan that would avoid & minimize impacts to the
maximum extent practicable. The connection points for this remainingtportion of Louis
Stephens Road are fixed points therefore leaving the location of the stream and wetland crossing
unavoidable (see fiQUre 1). In addition, the site is surrounded by existing residential lots and
utility easements which causes other site constraints in regards to diffuse flow measures and
t__emporarv sedimentation and erosion control measures. The applicant has put forth incredible
efforts to minimize the footprint of impacts by utilizing an extensive amount of retaining walls
and wing walls. In addition, the double barrel Con Span is designed and to be constructed with
a 1' sill on the northern side to direct normaUlow flows into southern barrel and offer the
northern barrel for higher flows.
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
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/strnigide.html.
Page 6
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.
The applicant proposes to utilize the Ecosystem Enhancement Program for all miti ation
required.
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.cnr.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): 164 (c~ 2:1 = 328
Amount of buffer mitigation requested (square feet): 39,728 ft2
Amount of Riparian wetland mitigation requested (acres): 0.59
Amount ofNon-riparian wetland mitigation requested (acres): 0
Amount of Coastal wetland mitigation requested (acres): 0
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ^ No
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 ^
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
justiEcation 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
Page 7
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify Meuse )? 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.
ROADWAY/PERMANENT & TEMPORAY IMPACT
Zone* Impact
s uare feet Multiplier Required
Miti anon
1 10,230 3 (2 for Catawba) 30,690
2 6,025 1.5 9,038
Total 16,255 39,728
UTILITY IMPACTS
Zone* Impact
s uare feet Multiplier Required
Miti anon
1 48 3 (2 for Catawba) N/A
2 269 1.5 N/A
Total 317 N/A
LEVEL SPREADER IMPACTS
Zone* Impact
s uare feet Multiplier Required
Miti anon
1 72 3 (2 for Catawba) N/A
2 859 1.5 N/A
Total 931 N/A
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends
additiona120 feet from the edge of Zone 1.
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.
The applicant proposes payment into the Ecosystem Enhancement Program for the reauired
mitigation. 39,728 ftz x $.96 = $38,138.88
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.
Page 8
This project is a linear transportation project and will be roviding diffuse flow measures
The applicant is proposing a preformed scour hole with a level spreader apron for the area to the
north. This area is within a wetland and is virtually flat (see attached detail W2). In the area to
the south, the applicant is proposing_ a gassed-berm level spreader. This area has constraints
such as an existing residential lot a sanitary sewer line and steep slopes therefore the placement
of this level spreader is proposed within Zone 2.
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.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A 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.em-.state.ne.us/ncwetlands. If no, please provide a short narrative description:
We have reviewed the "DRAFT Internal Policy Cumulative impacts and the 401 Water Quality
Certification and Isolated Wetland Programs" document prepared by the NC Division of Water
Quality on October 3, 2002, version 1.6. The draft states that public transportation projects may
cause cumulative impacts. However after reviewing this document and the Louis Stephens Road
project, a quantitative analysis should not be needed. We anticipate that you will advise us if a
qualitative or quantitative impact analysis is required.
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).
N/A
Page 9
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Applicant/ gent's Sign
(Agent's signature is valid only
l-
Date
tion letter from the applicant is provided.)
Page 10
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Site
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9~so w No. Figure 1 - USGS Map
Louis Stephens Drive
Project Mgr.: K. Hovnanian Homes, Inc.
TP Wake County
NC
,
Scale:
1" = 2,000'
02/08/05 Cary Quadrangle
Dated 1993
~ Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.• Raleigh, NC 27614
(919) 846-5900 • (919) 846-9467
Web Page: www.SandEC.com
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Project#: scale: Wake County Soil Survey
2939.w3 NTS
Project date: Louis Stephens Drive, Cary
Mgr.: DAE 04.20.06
Wake County, NC
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.• Raleigh, NC 27614
(919) 846-5900 • (919) 846-9467
Web Page: www.SandEC.com
Project: Louis Stephens Outlet(s): 53A and 56
LEVEL SPREADER OPERATION AND' MAINTENANCE AGREEMENT
The level spreader is defined as an elongated, level threshold, designed to diffuse storm-water runoff.
Maintenance activities shall be performed as (allows:
1. After construction and until vegetation has been established, lave! spreader(s) shall be inspected after every
rainfall. Thereafter, level spreader(s) shall be inspected at least every month and mare
frequently during the fall season and after heavy rainfa{I events:
a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required.
b, Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and
concentrated flows downhill from the level spreader(s).
c. A level elevation shall be maintained across the entire flow-spreading structure at all times.
Repair or replace the level spreader if it is damaged.
d. Mow vegetative cover to a height of six (6} inches and prune plants if they cover over half of
the level spreader surface.
e. Repair eroded areas and replaceireplant dead or damaged vegetation.
2. The contractor should avoid the placement of any material on and prevent construction traffic across the
structure. if the measure is damaged by construction traffic, it shall be repaired immediately.
3. Inspect and repair the collection system (e.g., catch basins, splitter box, pipes, swales, riprap) four (4) times a
year to maintain proper functioning.
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 patty.
Print name: Karl Bever
Title:_President-Heritage Pines Community Association
Nate: The legally responsible party should not be a homeowners association unless more than 50% of the
lots haverb~een sold and a resident of the subdivision has been named the president.
I, ~ aroh 6J . ~ rod l .ems( , a Notary Public for the State of ~ C.~
County of W G.f~ , do hereby certify that k O.Y 1 13~.~~-Y
personally appeared before me this day of ~" ~~ JUci- "Zor' (P ,and acknowledge the due
execution of the forgoing wet [wetland) detention basin maintenance requirements. Witness my hand and
official seal,
``~~~t~ntirtr~~i
~~~ Sarah B a ~~i,
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My commission expires v I tq 26ob
Page 1 of I
Address: 1201 Edwards MiI! Rd., Raleigh, NC 26707
Project: Louis Stephens Outlet(sj: 58
SCOUR HOLE OPERATION AND MAINTENANCE AGREEMENT
The scour hole is defined as a rock-lined depression, level threshold, designed to diffuse storm water runoff.
Maintenance activities shall be pertormed as follows:
1. After construction and until vegetation has been established, scour hole(s) shall be inspected after every rainfall.
Thereafter, scour hole{s) shall be inspected at least every month and more
frequently during the fall season and after heavy rainfall events:
a. Accumulated sediment, leaves, and trash shalt be removed, and repairs made if required.
b.lnspect scour hole{s) for evidence of scour, undercutting, settlement of the structure, and
concentrated flows downhill from the scour hole{s).
c. A level elevation shall be maintained across the entire flow-spreading structure at all times.
Repair or replace the scour hole if it is damaged.
d. Mow vegetative cover to a height of six (6} inches and prune plants if they cover over half of
the scour hole surface.
e. Repair eroded areas and replacelrplant dead or damaged vegetation.
2. The contractor should avoid the placement of any material on and prevent construction traffic across the
structure. If the measure is damaged by construction traffic, it shall be repaired immediately.
3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year to
maintain proper functioning.
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; Karl Bever
Title: President- Herita4e Pines Community Assoaation
Note: The legally responsible patty should not be a homeowners association unless more than 50°!° of the
lots have been scold and a resident of the subdivision has been named the president.
I, c~.rC~lh ~• 'Ur~1 , a Notary Public for the State of N C.~
County of ~j a k-e_ , do hereby certify that k-~Y 1 ~~-~I~ '
personally appeared before me this day of ~~ o~ ~ ~~ ,and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
--~Tl rrrrri
,~~ Sa(L B.~, iii
ti. SN~~~........~~~ ,¢ iii
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•. : J`LY~Q~ K... i
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'~i~~ ~ I ! u n t y ~ `` ~ ~~~~
SEAL
~.
My commission expires 6l l~ ~d ~
Page 1 of 1
Address: 1241 Edwards Mill Rd.. Raleigh. NC 26707
pWQ Project No.
DNISION OF WATER QUALITY • LEVEL SPREADER WORKSHEET
I. PROJECT [NFORMATION (please complete the following information}:
Project Name : Louis Steahens
Contact Person: Peyton N. Joyner. P.E. Phone Number. 919 469-1101 ~ ~ _
Level Spreader 1D: 53A and 56
Level Spreader Length ft NIA
Drainage Area ac. 3,17
impervious Area ac. 1,37
Maximum Filter StriplBuffer Slope 8 %
Grass
Max. Discharge from a 10 Ysar Storm 14.22 cfs
Max. discharge to Level Spreader 14.22 cfs
Filter StriplBuffer Vegetafion Grass
Pre-treatment or Bypass Method None
ll. REQUIRED ITEMS CHECKLIST
(perpendicular to flow}
(on-site and off site drainage to the level spreader]
{on-site and off-site drainage to the level spreader}
{6°~ for forested, leaf littler cover, 8% for (hick ground cover)'
{ihlck ground cover or grass, canopied forest with leaf liner
groundcover)
Initial in the space provided to indicate the following design requirements have been met and suppoding documentation is attached. !f a
requirement has not been met, attach an'explanation of why, At a minimum, a complete slormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet sbucture details, a detailed
drainage plan and a fully executed operaton 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
Ilcants I itials
Level spreader (s at least t3 R per cfs for thick ground cover or grass or 100 ft per cfs In canopied forest with leaf
litter.
N A 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:
N!A Bypass method Is specifed (if applicable) and plan details and calculations are provided
NiA Discharge to level spreader and subsequent filter ship Is hydraulically and spatially separate from the bypass
discharge,
No structures are located in protected buffers.
N! Plan details for the bypass and outlets are provided.
The operation and mainienance 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 witli leaf littler cover or on slopes of up fo 25% in areas
with thick ground cover or grass if designed accord€ng 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.
F:Vo1rs11700U~leritnge PincslLouis Stephens_ 251Dm~vingslWetland EmpactlDWQ DocumentslLS WOIiICSHEET - putlcl Y.doc
DWQ Project No.
DMStON OF WATER QUALITY • LEVEL SPREADER WORKSHEET
I. PROJECT INFORMATION {please complete the following information);
Project Name : Louis Ste hens
Contact Person; Peyton N. Joyner P.E Phone Number. 919 469-1101
Level Spreader ID: 58
Level Spreader Length tt. N/q
prainage Area ac. 0,95
Impervious Area ac. 0.67
Maximum Flter StrtplBuffer Slope 8 °~
Grass
Max. Discharge from a 10 Year Storm 5.22 cfs
Max. Discharge to Level Spreader 5.22 cfs
Filter StriplBuffer Vegetation Grass
Pre-treatment or Bypass Method None
ll. REQUIRED fiEMS CHECKLIST
(perpendicular to flow}
(on-site and off-site drainage to the level spreader}
(on-site and off-site drainage to the level spreader}
(6% for forested, leaf littler cover, 8% for thick ground cover}*
{thick ground cover ar grass, 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.lf 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 submittai package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Initials
N1A Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per ds fn canapfed forest with leaf
M litter.
'I` Pre-Farm Scour Hales are on flat slopes only
No structures are located fn protected buffers*
If bypass method specfied in the Draft Level Spreader Design Option Document:
N1A Bypass method is specified {if applicable} and plan details and calculations are provided
N/A Discharge to level spreader and subsequent filler strip is hydraulically and spatially separate from the bypass
discharge.
No structures are located fn protected buffers.
N/ ~ Plan details far 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 cam be used on slopes of up to i 5°4, in forested areas with leaflittler cover ar on slopes of up (0 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 i of a protected buffer area.
F:Uobs11700Weritage PincslE.ouis Stephcns_.251Drnwings\Wctland lmpactlDWQ pocumentsli.5 WORKSHEET -Outlet U.dac
Extent of Road Crossing location, facing Northwest
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