20090044 Ver 1_401 Application_20090109

Environmental Consultants, PA
Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
To: US Army Corps of Engineers
Raleigh Regulatory Field Office
Attn: James Lastinger
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
From: Nicole Thomson
Soil & Environmental Consultants, P.A.
11010 Raven Ridge Road
Raleigh, NC 27614
Re: Woodford Manor, Franklin County, NC
N.C. 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 owner, Mr. Rick Benton, please find attached a complete application and supplemental information requesting " CM
written concurrence from the U.S. Army Corps of Engineers (USACE) and the N.C. Division of Water Quality (DWQ) that the
activities proposed below may proceed under Nationwide Permit 29 and General Water Quality Certification 3705. Please contact me
at [phone] if you have any questions or require additional information.
PROJECT SUMMARY
Project Name Woodford Manor
Project Type Residential Development
Owner / Applicant Mr. Rick Benton
Count Franklin
Nearest Town Zebulon
Waterbod Name UT to Moccasin Creek
Basin / Sub-basin 03-04-07
Index Number 27-86-2
Class C- NSW
USGS Cataloging Unit 03020201
IMPACT SUMMARY
Stream Impact (acres): 0.0148
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.0148*
Total Stream Impact (linear feet): 163©
*total impacts to waters of the US/State is less than 1/10th acre
©stream impacts are to intermittent/unimportant stream channels
Attachments:
Pre-construction Notification (PCN) Application Form
USGS Topographic Site Vicinity Map
NRCS Soil Survey Site Vicinity Map
Agent Authorization Forms
Impact Map Details (1 I X17 - USACE & NC DWQ, 24X36 - NC DWQ Only)
USACE Jurisdictional Determination (USACE AID 200821978)
NC DWQ Buffer Determination Letter (DWQ No. NBRRO #08-187)
Level Spreader/Bio-retention cel worksheets, design details and required items checklist (DWQ Only)
$570 Application Fee to DWQ
Charlotte Office: Greensboro Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive
Concord, NC 28025 Greensboro, NC 27455
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
u 0 0 4 4 January 9, 2009
S&EC Project # 10376.W7
Office Use Only: Form Version March 08
09-0 044
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing r11 ,
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 29
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: ?
17
II. Applicant Information c --s ''•- '. t t,-
1. Owner/Applicant Information
JAN 9 1J ?;
Name: Attn: Mr. Rick Benton FNS Uajpy2
Mailing Address: PO box 33803 WETLANDS ANDSTVRfM41 iF'Z^0-RANCk
Raleigh NC 27636
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: N/A
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: Nicole J. Thomson
Company Affiliation: Soil & Environmental Consultants, PA
Mailing Address: 11010 Raven Ridge Road
Raleigh NC 27614
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: NThomsongSandEC.com
Page 1 of 11
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: Woodford Manor
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 2716-93-3428
4. Location
County: Franklin Nearest Town: Zebulon
Subdivision name (include phase/lot number): Woodford Manor
Directions to site (include road numbers, landmarks, etc.): From Raleigh Take Hwy 64 East
to Hwy 39; turn right on Hwy 39; turn left onto Hagwood Road; site will be on the right just
before the intersection of Stallings and Hagwood.
5. Site coordinates (Lat/Long or decimal degrees): 35.8417 ON 78.2584 °W
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres):
7. Name of nearest receiving body of water: Moccasin Creek (C;NSW; 27-86-2; 03-04-07L_
8. River Basin: Neuse River Basin (USGS Cataloging Unit 03020201)
(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/mVs/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Historically, the subject property is a former pine plantation
Currently, the property is forested with a few agricultural fields The surrounding
developments are single family residential subdivisions and individual lots (not located in a
subdivision).
Page 2 of 11
10. Describe the overall project in detail, including the type of equipment to be used: The
proposed project is for a residential subdivision. Heavy equipment typically necessary for
road and home construction will be used for this project.
11. Explain the purpose of the proposed work: The purpose of the proposed project is to
construct the Woodford Manor development to provide additional residential housing for the
area. The proposed impacts to streams and wetlands are necessary to construct the necessary
development roadway infrastructure.
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. In March 2007, S&EC staff conducted a detailed stream and wetland
evaluation of the subject property. On July 17 2008, Mr. Martin Richmond (NC DWQ visited
the site with Mr. Steven Ball (S&EC to verify the Neuse River Buffers Mr. James Lastinger
(USACE) confirmed the jurisdictional areas on site through documentation sent on June 19,
2008. Mr. Lastinger issued a Notice of Jurisdictional Determination on June 30, 2008 (USACE
ID 200801978). Mr. Lastinger also visited the site on December 2 2008 to make stream
importance calls and review proposed impact locations No prior wetland permits have been
requested or received for this site.
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 future wetland permits are known to be required 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
Page 3 of 11
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: Impact A (NWP 29): 77 linear feet
of permanent intermittent/unimportant stream channel impact and 7,450 sq. ft. (4,479 sq. ft.
of Zone 1 and 2,971 sq. ft. of Zone 2) of "allowable" Neuse River Riparian Buffer impact for
proposed road crossing,
Impact B (NWP 29): 86 linear feet of intermittent/unimportant stream channel impact and
8,686 sq. ft. (5,181 sq. ft. Zone 1 and 3,505 sq. ft. of Zone 2) of "allowable" Neuse River
Riparian Buffer impact for proposed road crossing.
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)
N/A N/A N/A N/A N/A N/A
Total Wetland Impact (acres) N/A
3. List the total acreage (estimated) of all existing wetlands on the property: 0.76 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 ma) Before Impact linear feet) (acres)
Impact "A" UT to Moccasin Culvert

NWP 29
Creek
(Permanent) Intermittent +/- 5' 77 0.0088
Impact "B" UT to Moccasin Culvert

NWP 29
Creek
(Permanent) Intermittent +/- 3' 86 0.0060
Total Stream Impact (by length and acreage) 163* 0.0148
*impacts are to intermittent/unimportant stream channels
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, dredging, flooding, drainage, bulkheads, etc.
Page 4 of 11
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
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres): 0.0148
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.0148*
Total Stream Impact (linear feet): 163
*please note that total proposed impacts to waters of the US/State total less than 1/10'b acre
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.
There are no isolated waters on the subject property.
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.): 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
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 applicant requested a
detailed delineation of streams and wetlands prior to site plan development in order to determine
the extent and location of streams and wetlands in the vicinity of the proposed crossings and
impacts. The site plan has limited permanent impacts to intermittent/unimportant stream
channels to two road crossings. There are no proposed impacts to perennial/important stream
Page 5 of 11
channels. Streams are not crossed multiple times by roads. The proposed road crossings are
necessary in order to access useable upland portions of the property for development as well as
providing the needed emergency vehicle access, in addition to being required by Franklin
County.
The applicant is also aware of the regional conditions associated with the Nationwide Permits
29. With respect to residential development conditions (Regional Conditions section
4.9) the applicant does not anticipate any impacts to streams or wetlands associated with
stormwater facilities, there are no proposed single-family recreation facilities there are no 100
year floodplain limits identified on this project and therefore there are no permanent wetland or
stream fills proposed within the floodway and the stream classification for this project is C,
NSW (i.e. not Outstanding Resource Waters or High Quality Waters).
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
htip://h2o.enr.state.nc.us/ncwetlands/stnnizide.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.
No permanent impacts are proposed to perennial/important streams and there are no
permanent wetland impacts proposed therefore no stream and/or wetland mitigation is
Page 6 of 11
required. Additionally, the Neuse River Riparian buffer impacts are "allowable" per the
table of uses {15 A NCAC 213 .0233 (61}, therefore buffer mitigation is not 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
[phone] 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/wM/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page three and provide the following information:
Amount of stream mitigation requested (linear feet): 0
Amount of buffer mitigation requested (square feet): 0
Amount of Riparian wetland mitigation requested (acres): 0
Amount of Non-riparian wetland mitigation requested (acres): 0
Amount of Coastal wetland mitigation requested (acres): 0
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 a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] 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
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 213 .0233
(Meuse), 15A NCAC 213.0259 (Tar-Pamlico), 15A NCAC 0213.0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify-P Yes ® No ?
Page 7 of I I
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.
Road Crossing "A" - "Allowable"
Zone* Impact
(square feet Multiplier Required
Mitigation
1 4,479 3 (2 for Catawba) N/A
2 2,971 1.5 N/A
Total 7,450 N/A
* 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.
Road Crossing "B" - "Allowable"
Zone* Impact
(square feet Multiplier Required
Mitigation
1 5,181 3 (2 for Catawba) N/A
2 3,505 1.5 N/A
Total 8,686 N/A
* 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.
Level Spreader T' - "Allowable"
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 1,095 1.5 N/A
Total 1,095 N/A
* 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.
Level Spreader "Y' - "Allowable"
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 1,194 1.5 N/A
Total 1,194 N/A
* 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.
Level Spreader "4" - "Allowable"
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 280 1.5 N/A
Total 280 N/A
* 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.
Page 8 of 11
Level Spreader "5" - "Allowable"
Zone* Impact
(square feet Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 563 1.5 N/A
Total 563 N/A
* 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.
Level Spreader "6" - "Allowable"
Zone* Impact
(square feet Multiplier Required-
Mitigation
1 0 3 (2 for Catawba) N/A
2 438 1.5 N/A
Total 438 N/A
* 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.
Level Spreader "T' - "Allowable"
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 478 1.5 N/A
Total 478 N/A
* 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.
Level Spreader "8" - "Allowable"
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3 (2 for Catawba) N/A
2 202 1.5 N/A
Total 202 N/A
* 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. The Neuse River Riparian buffer impacts are
"allowable" per the table of uses {15 A NCAC 2B .0233 (01, therefore buffer mitigation is
not required. The impacts to Neuse River buffers are below 1/3 acre and equal to or below
150 linear feet.
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
Page 9 of 11
percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed
impervious level. The anticipated post-construction impervious surface for this development will
be less than 24% due to the large lots and therefore, a Stormwater Management Plan is not
required. Additionally, per the diffuse flow requirements of the Neuse River Riparian Buffer
Rules please see the attached plans, calculations and worksheets for the proposed level spreaders
for the proposed development. In instances where level spreaders were not suitable, bio-
retention cels have been proposed. Please see the attached plans, calculations and worksheets for
the proposed bio-retention cels.
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.
There will be individual septic tanks and associated fields for each proposed lot in the
development. The individual lot septic systems will be permitted by the Franklin County Health
Department.
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.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: We
have reviewed the "DRAFT Internal Policy Cumulative impacts and the 401 Water uality
Certification and Isolated Wetland Programs" document prepared by the NC Division of Water
Quality on April 10, 2004, version 2.1. The draft states that most residential subdivisions are
unlikely to cause cumulative impacts. This residential project does not meet any of the three
criteria of private projects that can clearly result in cumulative impacts This development is
relatively small in nature, has no commercial component associated with it is within a primarily
residentially developed landscape and therefore the utility infrastructure (i.e. water and
electricity) are already in place to service the proposed development 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
Page 10 of 11
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).
Please note that there are four (4) proposed "stub out" roads that end at the property lines
for this proiect. These "stub-outs" are required by Franklin County per their county
ordinances (see attached memo of explanation and county ordinance document) It is also
important to note that the proposed "stub-out" at the southern property boundary is
located near a wetland. During the USACE site review, Mr. James Lastinger noted that
the proposed road "stub-out" was located in an appropriate location as the wetland has
been previously disturbed by historic logging activity (i.e. the wetland is comprised of
logging ruts, etc.). Additionally, there is a second memorandum supplied by the engineer
which discusses previous phone calls with Mr. Rob Ridings (DWO Transportation
Permitting Unit) regarding the inability to bury the culverts the required 20% due to site
constraints and that DWO will review and approve these on a "case-by-case" basis
I " ' -'Applicant gent's Signature t D to
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 11 of 11
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Project No. Figure 1 - 1:24K USGS
10345.W3 Topographic Quadrangle

Project Mgr.: Eagles Nest Soil & Environmental Consultants, PA
JP RDA Associates 11010 Raven Ridge Rd. - Raleigh, NC 27614
Scale: Franklin County, NC [phone]•[phone]
"
' Web Page: www.SandEC.com
1
= 2,000

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Project No. Figure 2-NRCS
1O376.W3 Soil Survey Map
Project Mgr.: Eagles Nest Soil & Environmental Consultants, PA
JP RDA Associates 11010 Raven Ridge Rd.- Raleigh, NC 27614
Scale: Franklin County, NC [phone] - [phone]
Web Page: www.SandEC.com
1 - 2,000
Zebu lon/Middlesex Sheets
02/27/07
mw?
01/06/2009 12:53 FAX
Name-
Address:
16004
Soil & Environmental Consultants, PA
11010 Ravea Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www-SuidBC.mm
r-7
oX ?
Phone: 7M Fla -93(e 3
Project NarricVDescription: t? F ??5 ??'1!l ?1c.> ??_ S&EC Project# It, ? Vk - W-1
Date: i IO 1
The Department of the Army
U.S. Army Corps of Engineers, Wilmington District
P.O. Box 1890
Wilmington, NC 28402
Attn: W2. SA L. As,--r i >? Cif rz
Field Office: L 2
Re: Wetlands Related Consulting acd Permitting
To Whom It May Conecrn:
1, the current ro v owner, hereby designate and authorize Soil & Enviromnental Consultants, PA to act in my
behalf as my agent in the processing of permit applications, to furnish upon request supplemental information in
support of applications, etc. from this day forward. The day of , 26
TL,s notdicadon supersedes any previous correspondence concerning the agent for this project.
NO'ITCE: This authorization, for liability and professional courtesy reasons, is valid only for government
officials to enter the property when accompanied by S&EC staff. You should call S&EC to arrange a site
meeting prior to visiting the site.
Print Property Owner's Name
cc: Ms. Cyndi Karoly
NCDENR - DWQ
2321 Crabtree Boulevard
Raleigh, NC 27604
Ak4z!?:
Property Owner's Signature
cc: Mr. Jason Payee
Soil & Environmental Consultants, PA
Chatlnae Office: Greensbom Office:
2361,e.Pl,ilEiF Court, Suite C 31117-1 U-Amdale Nve
Concord NC 28025 Greensboro, NC 27455
Phonc: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
3
6
AGENT AUTHORIZATION FORM
All Blanks To Be Filled In By The Current Landowner
IMPACT MAPS
Low Density Residential Subdivisions
Deed Restrictions & Protective Covenances
In accordance with Title 15 NCAC 2H.1000, the Stormwater Management Regulations, deed restrictions
and protective covenants are required for Low Density Residential Subdivisions where lots will be
subdivided and sold. Deed restrictions and protective covenants are necessary to ensure that the
development maintains a "built-upon" area consistent with the applicable regulation governing the density
level.
I; acknowledge and affirm by my signatur below, that I will cause th
following deed restrictions and protective covenants to be recorded for o
prior to the sale of any lot:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
The following covenants are intended to ensure ongoing compliance with State Stormwater
Management Permit Number as issued by the Division of Water Quality under
NCAC 2H. 1000.
The State of North Carolina is made a beneficiary of these covenants to the extent necessary to
maintain compliance with the stormwater management permit.
These covenants are to run with the land and be binding on all persons and parties claiming
under them.
The covenants pertaining to stormwater may not be altered or rescinded without the express
written consent of the State of North Carolina, Division of Water Quality.
Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the Division of Water Quality.
The maximum allowable built-upon area per lot is o d © square feet. This allotted amount
includes any built-upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but
is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, and coquina, but does
not include raised, open wood decking, or the water surface of swimming pools.
In the case of a lot within CAMA's regulated AEC, where the Division of Coastal Management
calculates a different maximum allowable built-upon area for that lot than is shown herein, the
governing maximum built-upon area for that lot shall be the most restrictive of the two.
Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
development except for average driveway crossings is-strictly prohibited by any persons.
Each lot will maintain a 30 foot wide vegetated buffer between all impervious areas and surface
waters.
All roof drains shall terminatejt lgast 30 foot from the mean high water mark of surface waters.
• bt q 2009
a Notary Public in the
State of iA C_ -,County of LZ C.J<-k_
do hereby certify that (1i? ahcr %OA^JA=Af* 'R? anAFDn personally appeared
before me this the Q day of J o.? tk ia:,, 20 0 R , and acknowledge
the due execution of the foregoing instrument. Witness my hand and official seal,
SEA; `??????N?iii
Signature ?e?,c;, ? • `?`?`p? 3: STA
My Commission expires M4,\&% aS, &cp,Q9
c?0
Form DRPC-5 Rev.l Page 1 of 1 ?: ly : ' • ???
COV`
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USACE JURISDICTIONAL DETERMINAION
& DWQ DETERMINATIONS
COPY
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. 200801978 County: Franklin U.S.G.S. Quad: Zebulon
NOTIFICATION OF JURISDICTIONAL DETERMINATION
Property Owner/Agent: Rick, Benton
Address: RDA Associates
P.O. Box 37759
Raleiah, NC 27627
Telephone No.: 919-821-1400
JUL 1) 2 201)8
Property description: The project site is a 240 acre undeveloped tract consisting of several perennial, and intermittent streams
with abutting wetlands, and one jurisdictional pond.
Size (acres) +/-240 Nearest Town Bunn
Nearest Waterway Moccasin Creek River Basin Neuse River
USGS HUC 03020101 Coordinates N 35.8393 W -78.2592
Location description The project site is a 240 acre tract located east of NC 39 and north of NC 97, on SR 1750, near
Bunn, Franklin County, North Carolina. Aquatic features on site drain to Moccasin Creek in the Neuse river basin.
Indicate Which of the Following Apply:
A. Preliminary Determination
_ Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have
this property inspected to determine the extent of Department of the Army (DA) jurisdiction. To be considered final, a
jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action
under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331).
B. Approved Determination
_ There are Navigable Waters of the United States within the above described property subject to the permit requirements of
Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or
our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
X There are waters of the U.S. including wetlands on the above described property subject to the permit requirements of
Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.
_ We strongly suggest you have the waters of the U.S. including wetlands on your property delineated. Due to the size of
your property and/or our present workload, the Corps may not be able to accomplish this wetland delineation in a timely
manner. For a more timely delineation, you may wish to obtain a consultant. To be considered final, any delineation must
be verified by the Corps.
X The waters of the U.S. including wetlands on your property have been delineated and the delineation has been verified
by the Corps. We strongly suggest you have this delineation surveyed. Upon completion, this survey should be reviewed
and verified by the Corps. Once verified, this survey will provide an accurate depiction of all areas subject to CWA
jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied
upon for a period not to exceed five years.
_ The wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps
Regulatory Official identified below on. Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
There are no waters of the U.S., to include wetlands, present on the above described property which are subject to the
permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our
Page 1 of 2
Action ID:
published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act
(CAMA). You should contact the Division of Coastal Management in Washington, NC, at [phone] to determine
their requirements.
Placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may
constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this
determination and/or the Corps regulatory program, please contact James Lastinger at 919-554-4884 ext 32.
C. Basis For Determination
Areas on site meet wetland criteria as described in the 1987 Corps Wetland Delineation Manual and evidence of an
established OHWM.
D. Remarks
Waters of the US including wetlands have been accurately depicted on maps sent to the Corps on June 19, 2008.
E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in
B. above)
This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this
determination, you may request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a
Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this
determination you must submit a completed RFA form to the following address:
District Engineer, Wilmington Regulatory Division
Attn: Jean Manuele, Field Office Chief,
Raleigh Regulatory Field Office
3331 Heritage Trade Dr., suite 105
Wake Forest, North Carolina 27587
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for
appeal under 33 CFR part 331.5, and that it has been received by the District Office within 60 days of the date of the NAP.
Should you decide to submit an RFA form, it must be received at the above address by August 30, 2008.
**It is not necessary to submit an RFA form to the District Office if you do not object to the determination in this
correspondence.** It
Corps Regulatory Official: James LastingerIL4!L(/J C
Date June 30, 2008
Date
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to
do so, please complete the Customer Satisfaction Survey located at our website at http://reeulatory.usacesurve,y.conV to
complete the survey online.
Copy furnished:
S&EC
ATTN: Steven Ball
11010 Raven Ridge Rd.
Raleigh, NC 27614
Page 2 of 2
Applicant: Rick Benton File Number: SAW-2008- Date: June 30, 2008
101978-
Attached is: See Section below
INITIAL PROFFERED PERMIT (Standard Permit or Letter of A
PROFFERED PERMIT (Standard Permit or Letter of permission) B
PERMIT DENIAL C
APPROVED JURISDICTIONAL DETERMINATION D
PRELIMINARY JURISDICTIONAL DETERMINATION E
A: INITIAL PROFFERED PERMIT: You may accept or object to the permit.
• ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature
on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the
permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the
permit be modified accordingly. You must complete Section II of this form and return the form to the district engineer. Your
objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal
the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the
permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit
having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer
will send you a proffered permit for your reconsideration, as indicated in Section B below.
B: PROFFERED PERMIT: You may accept or appeal the permit
• ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature
on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the
permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you
may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form
and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of
this notice.
C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by
completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer
within 60 days of the date of this notice.
D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or
provide new information.
• ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of
this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD.
• APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative
Appeal Process by completing Section II of this form and sending the form to the district engineer. This form must be received by
the division engineer within 60 days of the date of this notice.
E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps
regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved
JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new
information for further consideration by the Corps to reevaluate the JD.
_. rL.??T ?axr1
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11E V
REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your
objections to an initial proffered permit in clear concise statements. You may attach additional information to
this form to clarify where your reasons or objections are addressed in the administrative record.)
ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps
memorandum for the record of the appeal conference or meeting, and any supplemental information that the
review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps
may add new information or analyses to the record. However, you may provide additional information to clarify
the location of information that is already in the administrative record.
?
If you have questions regarding this decision If you only have questions regarding the appeal process you
and/or the appeal process you may contact: may also contact:
James Lastinger, Regulatory Specialist Jean Manuele, Field Office Chief
Raleigh Regulatory Field Office Raleigh Regulatory Field Office
3331 Heritage Trade Dr., suite 105 3331 Heritage Trade Dr., suite 105
Wake Forest, NC 27587 Wake Forest, NC 27587
RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any
government consultants, to conduct investigations of the project site during the course of the appeal process. You
will be provided a 15 day notice of any site investigation, and will have the opportunity to participate in all site
investigations.
Date: Telephone number:
Signature of appellant or agent.
For appeals on Initial Proffered Permits and approved Jurisdictional Determinations send this
form to:
District Engineer, Wilmington Regulatory Division, Attn: Jean Manuele, Field Office Chief,
Raleigh Regulatory Field Office, 3331 Heritage Trade Dr., suite 105, Wake Forest, North Carolina
27587
For Permit denials and Proffered Permits send this form to:
Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Mike Bell,
Administrative Appeal Officer, CESAD-ET-CO-R, 60 Forsyth Street, Room 9M15, Atlanta,
Georgia 30303-8801
OaO? W AT ?9?G
02 r
> :i
O 'C
September 10, 2008
Steven Ball
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd
Raleigh, NC 27614
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
NBRRO#08-187
Wake County
BASIN:
Neuse River
(15A NCAC 2B
X
Tar-Pamlico
(15A NCAC 2B .0259)
Project Name:
Nest RDA Associates
Location/Directions: Property is located south of intersection of SR 1750 (Hagwood Rd) and SR 1746 (Stallings
Rd) in Franklin County. USGS = Zebulon, NRCS = Franklin County Sheet 16 Zebulon
Subiect Stream: UT to Moccasin Creek
Date of Determination: July 17, 2008
Feature(s) Not
Subject Subject Start @ Stop@ Stream
Form Pts. Soil Survey USGS
Topo
A X Throughout X X
B X Fla `SO2' X
C X
D X Fla `S05" X
E
(Moccasin
Creek X Throughout X X
F X Throughout X X
G X Throughout X
H X Fla `S01' X X
Pond 1 X X X
Explanation: The feature(s) listed above has or have been located on the Soil Survey of Franklin County, North
Carolina or the most recent copy of the USGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been determined not to be a stream or is not present on the property. Features that are checked
"Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
other streams located on your property that do not show up on the maps referenced above but, still may be
considered jurisdictional according to the US Army Corps of Engineers and/or to the Division of Water Quality.
This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected
parties that dispute a determination made by the DWQ or Delegated Local Authority that a surface water
exists and that it is subject to the buffer rule may request a determination by the Director. A request for a one
determination by the Director shall be referred to the Director in writing c/o Cyndi Karoly , DWQ ?uNo Carolina
lura!!r?
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet h2o.enr.state.nc.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
An Equal Opportunity/Affirmative Action Employer-50% Recycled/10% Post Consumer Paper
Eagles Nest RDA Associates
Franklin County
September 10, 2008
Page 2 of 2
Wetlands/401 Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. Individuals that dispute a determination
by the DWQ or Delegated Local Authority that "exempts" a surface water from the buffer rule may ask for
an ad judicatory hearing. You must act within 60 days of the date that you receive this letter. Applicants are
hereby notified that the 60-day statutory appeal time does not start until the affected party (including
downstream and adjacent landowners) is notified of this decision. DWQ recommends that the applicant
conduct this notification in order to be certain that third party appeals are made in a timely manner. To ask
for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General
Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This
determination is final and binding unless you ask for a hearing within 60 days.
The (owner/future owners) should notify the Division of Water Quality (including any other Local, State, and
Federal Agencies) of this decision concerning any future correspondences regarding the subject property
(stated above). This project may require a Section 404/401 Permit for the proposed activity. Any inquiries
should be directed to the Division of Water Quality (Central Office) at (919)-733-1786, and the US Army
Corp of Engineers (Raleigh Regulatory Field Office) at (919)-876-8441.
Respectfully,
r
.ol r
Martin gental Enviro ecia list
CC: Wetlands/ Stormwater Branch, 2321 Crabtree Blvd, Suite 250, Raleigh, NC 27604
RRO/SWP File Copy
Central Files
Nos` Carolina
?turallry
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection
Intemet: h2o.enr.state.nc.us 1628 Mail Service Center Raleigh, NC 27699-1628
Phone [phone] Customer Service
FAX [phone]
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10° Post Consumer Paper
ik 12460
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DIFFUSE FLOW CALCULATIONS,WORKSHEETS
AND DESIGN DETAILS
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r POINT PRECIPITATION r 4
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
North Carolina 35.846552 N 78.25971 W 298 feet
from "Precipitation-Frequency Atlas or the United States" NOAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin, B. Lin, T, Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
Extracted: Thu Jan 8 2009
Confidence Limits Seasonality Location Maps Other Info. GIS data Maps Docs Return to State Mal
?._....... _.-.__._ _.___._.._....__..__-------------- __.____.. _..._.___Precipitation Frequency Estimates (inches)
ARP 5 10 15 [ 30 60 120. i?- 10 20 30 I 45 60
(Y )2I- 2?- 3hr Fk6kh -112 hr 24 hr 48 hr i4dav 7day? I
ears min mm mm min in min - da da day. da da

- 1
0.40 _
X0.64 _
0.81
j1..10
1.38
1.61
1.70
2.04 E2.40
2.84
3.29 13.70 4.30 4.91
6.60
8.1.9
1.0.41
12.50
F2- 0.47 !0.74 0.93 41.29 1.62 1.90 2.01 2.42 12.84 3.44 3.97 ;4.45 5.15 5.86 7.82 9.67 12.23 14.64
I ' 0.53 10. 1.06 E1.5 1.94 2.30 245
. 2.94 3.47.
4.38
5.01 !5.55 6.36
7.13 -35-1T-38 14.17 16.77
F 10 0.60 ?.95 1.21 x1.75 2.28 2.75 x2 94-3.53 4.20 5.-14- 1-5.-i6-----16.45 f 7.33 8.13 10.57 12.72 I15.68 1$.41-
25 0.67 106 1.35 X2.00 2.66 3.26 3.53 4.25 5.02 6.23 [75-67.-71J8.69 9.53 12.25 14.52 ! 17.67.20.56
F 50 0.73 41.16 1.47 [2.21 2.99 3.74 4.09 4.95 15.97 7.14 8.05 ;8.7 9.79 10.64 F3.59:15.91
19.20
22.19
100 10.78 11.24 11.57 12.40 1331 (4.21 4.64 15.64 16.84 8.11 - ?.Il [9.83 10.95 11.80 144-.'9-5-11-7 3'2 1
- ir
23.78
200 0.83 1 1.3 1.66 42.8 3.62 4.70 5.23 6.39 7.81 9.15 10.24 [10 99 12.16 13.00 16.37 18.74 122 25.36
500 10.89 j1.40 1.76 f 2.80 14 02 x5.34 16.03 7.41 _19.15 10.67 ?11 88 [12.63 113.87 14.68 18.31 ?20 66 124.27 127.42
1000 10.94 ' 1.48 1.85 13.00 14.39 15.45 6.81 [i.40 410.47 11.93 13.22 113.98 15.25 16.02 19.84 22.15 125.81 (28.97
"These precipitation frequencyeslimates are based on a partial duration series. ARI Is the Average Recurrence Interval.
Please refer to NOAA Atlas 14 Document for more information. NOTE: Formatting forces estimates near zaro to appear as 2ero.
* Upper bound of the 90% confidence interval
Precipitatio n Frequency Estimates (inches)
ARI**

(
ears) 5 10

min min 15

m F3in 60

min 120

min 3

hr

r

r 24

hr 48 4

hr [ da 7

da 10

da 20

da 30 145
T

da
I da

60
----
da
y y y y y y
y y
....... .
__...l
10.44 10.7]
11.51 f 1.78
1.90
f2.26
12.65
3.07 1
3.55 13.97 4.61- [,5.24
f7.02 -.18.6910.9813.14
I' -'2 -------------- 0.51 10.8 ] `1.02 1.41 i ] 77 2.08-_ 1.2 23 2.67 j3.13 [3 72 14.29 14.77 r525. 8.32 - (10.25 [ 12.91 15.39
0.57 0.92 1.16 1.65 2.12 2.53 2.71. 3.24 [3.82 4.73 5.41 15.95 .6 .80 7.59 9.94 12.06 i 1496 17.62
r 10...._ 10.65 [1.05 [1.32. 11.92 2.50 3.02 13.25- 13.89
----------- - --
.61
14

15.55...6.32 [6.90- 17.84 (8.6611.23 1.3.48 16.55 19.36
25 0.73 1. 6 1.47 ;2.18 2.91 3.58 3.88 4.67 45.58 6.73 7.62 48.26 9.30 Flo 15 13.01 }5.39 18.66 21.64 11 11
F SO 0.80 41.27 1.G0 [2.42 3.27 4.10 4.50 5.42 X6.51 7.70 8.68 [9.38 10.48 11.36 14.45 (16.88 20.29 23.37

100
10 85 11.35
1.71
12 62
13 6] 14.61
5.10
16.17
17.46 _
-------- ---- --
f 8.76 -x9.84 [10.56 11.74 12.61 1]5.92 1}8.39 21.93 x25.08
200 0.91 11.4 1.82 2.83 3.96 5.14 5.75 6.98 [8.50 9.90 11.09 i 1] .82 13.07 13.92 17.46 19.95 423423 58
1
26.79
500-J 6.97-J1.5 3 11.93 13.07 4.41 15.85 (6.63 18.10 19.96 _ 11.58 112.92 413.64 (14.96 15.77 119.60.122.06 125.8129.06
-1000 x.03 11.62- x2.04 ?3 30 4.82 1-6.53 (7.50- x9.21- 11.41 12.99 14.45 15.15 16.51 17.27
'1 21..32 r23.7I .12 7.51 30.76
*The upper bound of the confidence interval at 90%confidence level is the value which 5%ofthe simulated quantile values fora given frequency are greater than.
-These precipitation frequencyestimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to NOAH Atlas 14 Document for more information. NOTE: Formatting prevents estimates near aro to appear as zero.
* Lower bound of the 90% confidence interval
4 Precipitation Frequency Estimates (inches)
ARI** 5 10 15 30 60 120 3 6 12 24 48 4 7 10 20 30 45 b0
(years) min :I min min min mm min hr hr 4 hr hr hr day day day day day day day
1 of4 1/8/2009 6:19 PN
Precipitation rrequency uata server
nap:l r nusc. nws.rioaa.gov/ cgi- Dmi nusci oui ruout.peri !type-prduniT.s=u..
1 .1._.. 10.37.... 0.59.... {0.73
1 1.25 ... 1.46 f 1.54 .... 1.86 12.19 12.64 _..._ r.06_._.. ?3.4b 14.02 -14.61 16.21._._...17.74 ..... 9.89 11 ...__..
2 10.42 10.68
10.85 fi1.18 r 48 11 .73 11.83
12.20 2
.60

r- I I- -- -r-- --
.82 x5.50 7.36 (9.1-3 - 11.62 13.91
(3.20 3.70 14.15 4
1
F- 5 0.48 F677 4.97 1.38 1.77 2.09 2.22 2.67 3.17 4.06 4.66 F5 1-8 5.94 6.68 8.79 10.73 13.43 15.92
10 10 54 . 10.87 11.10 r 60 2 08 12.49 . 12.66 13.21 13.82 14.76 (5.43 I6 00.....16 83 17.61 -19 93 111.97 -14.84 17.46
25 0.60 15-.9-61-.22 1.81 2.41 2.93 3.17 3.84 4.60 5.74 6.51 7.14 .8.47 8.88 11.46 13.62 16,69 19,46
50 0.66 1.05 1.32 X2.00 12.70 3.35 3.65 4.43 5.35 6.54 7.39 8.06 9.05 9.89 12.67 14.89 18.09 20.97
_
--
100
-
0.70 ..

1,11 1.41 2.15

2.97

3.74

4.11

5.00

6.07

17.38 8.31 _ 19.01 110.07 10.91 113,89 16.16 119.47 22.42
200 0.74 11r 17 - 1..48 .2.31 3.23 4.15 4.60 5.61 ti.85 8.27 9.27 10 00 11.12 11.96 15.13 17.43 20.83 23.84
500 0.78 1.24 1.56 2.48 3.Sb 4.68 5.25 6.43 7.89 9.53 10.63 11.39 12.56 13.39 16.81 19.10.22.64 25.68

1 1000
10 82
X3.30 r.b3 12.64
13.85
------- -------
15.16
5.85
------
.19
18.89
(10.55 r 1.72 1
12.49
r3.71 14,53 118.11 ---- - --
?20 38 123.95 1
27.03
• The lower bound of the confidence interval at go%confidence level is the value which 5%ofthe simulated quantile values br a given frequency are less than.
"These precipitation frequency estimates are based on a partial duration maxima series, ARI is the Average Recurrence Interval.
Please refer to NOAAAIIas 14 Document for more i nformation. NOTE : Formatting prevents estimates near zero to appearas zero.
Text version of tables
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Partial duration based Point Precipitation Frequency Estimates - Version: 3
35.646552 M 78.25971 W 298 ft
1 2 3 4 5 6 7 8 910 20 30 40 50 80100 140 200 300 500 700 1000
Average Recurrence Interval (years)
Thu Jan 08 18:18:09 2009
Duration
5-min 48-hr - i 30-day -x-
10-min -a- :3-hr -+- 4-day -?-
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Precipitation t requency vata server nttp:nnasc.nws.noaa.gowcgi-Din/nascii)uiiaout.perrrtype=pT&units=u..
Partial duration based Point Precipitation Frequency Estimates - Version: 3
35.846552 h 78.25971 W 298 ft
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These maps were produced using a direct map request from the
U.S. Census Bureau Mapping and Cartographic Resources
Tamer Mau Server.
Please read disclaimer for more information.
LEGEND
Other Maps/Photographs -
State - Connector
------- County
Stream
Indian Res?r Military Area
LakejPondJ Ocean Nat i ona I Park
...._.._._. .
Street i'i Other Park
---- Expressway City
---Highway .0.M C.Qunty.6 .8mi
Scale 1:228583 g
*avera0e--true scale d nh on monitor8reso1lution
View USGS digital orthoahoto auadranele (DOO) covering this location from TerraServer; USGS Aerial Photograph may also
be available
fromthis site. A DOQ is a computer-generated image of an aerial photograph in which image displacement caused by terrain relief
and camera tilts has been removed. It combines the image characteristics of a photograph with the geometric qualities of a map.
Visit the USGS for more information.
Watershed/Stream Flow Information -
Find the Watershed for this location using the U.S. Environmental Protection Agency's site.
Climate Data Sources -
Precipitation frequency results are based on data from a variety of .sources, but largely NCDC. The following links provide
general information
about observing sites in the area, regardless or if their data was used in this study. For detailed information about the stations
used in this study,
please refer to NOAA Atlas 14 Document.
Usingthe National Climatic Data Center's (NCDC) station search engine, locate other climate stations within:
+/-30 minutes ...OR... +1-1 degree of this location (35.846552/-78.25971). Digital ASCII data can be obtained directly
from NCDC.
Hydrometeorological Design Studies Center
DOC NOAH/National Weather Service
1325 East-West Highway
Silver Spring, MD 20910
[phone]
Questions?: HDSC.Ouestions0moaagoov
Disclaimer
4 of4 1/8/2009 6:19 PM
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Permit NumDer:
(to be provided by DWQ)
Red triangles at the upper right hand corner indicate design comments
Please complete the yellow shaded items.
A o?aF warF9?r
vAl
NCDENR.
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
.t. .;.l'i+t1?7??M '..1,t,`,1-?Rl/;h???t?1 .....::::::::::•:::•:::r::::?.,........«,.......«....... ................... .::::•:' ...........<................. «<...-.........>....,..
Project name Woodford Manor
Contact name CI_ Vaughan
Phone number 919-365-3300
Date January 1, 2001
Drainage area number 6

Site Characteristics
Drainage area 52,355 ft'
Impervious area 16,553 ft'
Percent impervious 31.6% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flow required? n (Y or N)
1-yr, 24-hr runoff depth 2.84 in
1-yr, 24-hr intensity 0.12 in/hr
Pre-development 1-yr, 24-hr peak flow 0.000 ft3/sec
Post-development 1-yr, 24-hr peak flow 3.150 ft'/sec
Pre/Post 1-yr, 24-hr peak control 3.150 ft'/sec
Storage Volume: Non-SA Waters
Minimum volume required 1,932.0 ft'
Volume provided 1,932.0 ft' OK
Storage Volume: SA Waters
1.5" runoff volume ft3
Pre-development 1-yr, 24-hr runoff ft'
Post-development 1-yr, 24-hr runoff ft3
Minimum volume required 0 ft3
Volume provided ft3
Cell Dimensions
Ponding depth of water 12 inches OK
Ponding depth of water 1.00 ft
Surface area of the top of the bioretention cell 1,932.0 f? OK
Length: 74 ft OK
Width: 26 fl OK
-or- Radius ft
Media and Soils Summary
Drawdown time, ponded volume 12 hr OK
Drawdown time, to 24 inches below surface 36 hr OK
Drawdown time, total: 48 hr
In-situ soil.
Soil permeability 0.52 in/hr OK
Planting media soil:
Soil permeability 0.52 in/hr OK
Soil composition
% Sand (by weight) 85% OK
% Fines (by weight) 12% OK
% Organic (by weight) 3% OK
Form SW401-Bi0retention-Rev.7 Parts I and II. Design Summary, Page 1 of 3
vermn Numoer:
(to be provided by DWQ)
Total: 100%
Phosphorus Index (P-Index) of media 20 (unitless) OK
Form SW409-Bioretention-Rev.7 Parts I and II. Design Summary, Page 2 of 3
rerma rvumoer:
(to be provided by DWQ)
Basin Elevations
Temporary pool elevation 272.00 fmsl
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell? y (Y or N) OK
Is this a cell with trees/shrubs? (Y or N)
Planting elevation (top of the mulch or grass sod layer) 271 fmsl
Depth of mulch 0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil 269 fmsl
Planting media depth 2 ft
Depth of washed sand below planting media soil 0.33 ft
Are underdrains being installed? y (Y or N)
How many clean out pipes are being installed? 2 OK
What factor of safety is used for sizing the underdrains? (See 6 OK
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and 1 ft
the bottom of the cell to account for underdrains
Bottom of the cell required 267.67 fmsl
SHWT elevation 265.67 fmsl
Distance from bottom to SHWT 2 ft OK
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the y (Y or N) OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed y (Y or N) OK
through a vegetated filter?
What is the length of the vegetated filter? 30 ft
Does the design use a level spreader to evenly distribute flow? y (Y or N) Submit a level spreader supplement.
Is the BMP located at least 30 feet from surface waters (50 feet if y (Y or N) OK
SA waters)?
Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK
Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK
Is the BMP located in a proposed drainage easement with access y (Y or N} OK
to a public Right of Way (ROM?
Inlet velocity (from treatment system) 1 ft/sec OK
Is the area surrounding the cell likely to undergo development in
y
(Y or N)
Insufficient. BMP shall be located in stabilized area.
the future?
Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK
Is the drainage area permanently stabilized? n (Y or N) Insufficient stabilization.
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(8inches gravel followed by 3-5 ft of grass) x
Grassed swale x OK
Forebay
Other
Form SW401-Bioretention-Rev.7 Parts 1 and It. Design Summary, Page 3 of 3
Hermit Numoer.
(to be provided by DWQ)
Red triangles at the upper right hand comer indicate design comments
Please complete the yellow shaded items.
A 7A
HCDENR.
o??? W ATERpG
?? r
> .1
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information,
li.... q ?Ai'r?i?,?...? IJ . fit'
.Pry .41..k .........................._..a..
.............................,........................_.. .: rr: •::: ::: ::. ?:::;:::? r ?..:..:::':r^?:.........:•rar:•rr.....,............»........-............,............a,.:........•.::•?:::::.r.? ? :::':^::r:::-::?::.:::rr<.
Project name Woodford Manor
Contact name CL Vaughan
Phone number 919-365-3300
Date January 1, 2001
Drainage area number 1

_............r .........................
W OR
ilt'
Site Characteristics
Drainage area 516,018 ftz
Impervious area 88,427 fe
Percent impervious 17.1% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flow required? n (Y or N)
1-yr, 24-hr runoff depth 2.84 in
1-yr, 24-hr intensity 0.12 inlhr
Pre-development 1-yr, 24-hr peak flow 16.700 ft3/sec
Post-development 1-yr, 24-hr peak flow 18.700 ft3lsec
Pre/Post 1-yr, 24-hr peak control 2.000 ft3lsec
Storage Volume: Non•SA Waters
Minimum volume required 14,160.0 ft3
Volume provided 14,160,0 ft3 OK
Storage Volume: SA Waters
1.5" runoff volume ft3
Pre-development 1-yr, 24-hr runoff ft3
Post-development 1-yr, 24-hr runoff rya
Minimum volume required 0 ft3
Volume provided ft3
Cell Dimensions
Ponding depth of water 12 inches OK
Ponding depth of water 1.00 ft
Surface area of the top of the bioretenlion cell 14,160.0 ft2 OK
Length: 140 ft OK
Width: 100 ft OK
-or- Radius ft
Media and Soils Summary
Drawdown time, ponded volume 12 hr OK
Drawdown time, to 24 inches below surface 36 hr OK
Drawdown time, total: 48 hr
In-situ soil.
Soil permeability 0.52 in/hr OK
Planting media soil;
Soil permeability 0.52 inlhr OK
Soil composition
% Sand (by weight) 85% OK
% Fines (by weight) 12% OK
% Organic (by weight) 3% OK
Form SW401-Sioretention-Rev.7 Parts I and II. Design Summary, Page i of 3
Yermrt NUMDer:
(to be provided by DWQ)
Total: 100%
Phosphorus Index (P-Index) of media 20 (unitless) OK
Form SW401-Bioretention-Rev.7 Parts I and II, Design Summary, Page 2 of 3
Permit Number:
(to be provided byDWQ)
Basin Elevations
Temporary pool elevation 280.00 fmsi
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell? y (Y or N) OK
Is this a cell with trees/shrubs? (Y or N)
Planting elevation (top of the mulch or grass sod layer) 279 fmsl
Depth of mulch 0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil 277 fmsi
Planting media depth 2 ft
Depth of washed sand below planting media soil 0.33 ft
Are underdrains being installed? y (Y or N)
How many clean out pipes are being installed? 15 OK
What factor of safety is used for sizing the underdrains? (See 6 OK
BMP Manual Section 12.3,6)
Additional distance between the bottom of the planting media and 1 it
the bottom of the cell to account for underdrains
Bottom of the cell required 275.67 fmsi
SHWT elevation 273.67 fmsi
Distance from bottom to SHWT 2 ft OK
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the y {Y or N) OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed y (Y or N) OK
through a vegetated filter?
What is the length of the vegetated filter? 30 It
Does the design use a level spreader to evenly distribute flow? y (Y or N) Submit a level spreader supplement.
Is the BMP located at least 30 feet from surface waters (50 feet if
y
(Y or N)
OK
SA waters)?
Is the BMP localed at least 100 feet from water supply wells? y (Y or N) OK
Are the vegetated side slopes equal to or less than 3:1? y (Y or N) OK
Is the BMP located in a proposed drainage easement with access

to a public Right of Way (ROW)? y (Y or N) OK
Inlet velocity (from treatment system) 1 ft/sec OK
Is the area surrounding the cell likely to undergo development in
the future? y (Y or N) Insufficient, BMP shall be located in stabilized area.
Are the slopes draining to the bioretention cell greater than 20%? n (Y or N) OK
Is the drainage area permanently stabilized? n (Y or N) Insufficient stabilization.
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(flinches gravel followed by 3-5 ft of grass) x
Grassed swale x OK
Forebay
Other
Form SW401-Bioretention-Rev,7 Parts I and II. Design Summary, Page 3 of 3
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
l?
cr.J
Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build-out.
Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
Upslope channel, and
- Downslope filter fabric.
r?151 4. A date-stamped photograp of the filter strip that clearly shows the type of vegetation that is present.
G 5. A construction sequence that sho6 how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
-? 6. The supporting calculations.
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.

8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1
Permit No:
(to be assigned by DWQ)
fay-T?.(-r1aJ
Please indicate the page or plan shee numbers where the supporting documentation can be found. An Incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
C ?^ 1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build-out,
Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
Pretreatment system,
High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
Boundaries of drainage easement.
?- 2. Plan details (1" = 30' or larger) for the bioretention cell showing:
Cell dimensions
Pretreatment system,
- High flow bypass system,
a
5 - Maintenance access,
- Recorded drainage easement and public right of way (ROW),
11N++
St
Design at ultimate build-out, j i ` t? ?
- OK-site drainage (if applicable),
Clean out pipe locations,
\ Overflow device, and
1 - Boundaries of drainage easement.
V G L J 1
???((( Indicate the P-Index between 10 and 30
3. Section view of the bioretention cell (1" = 20' or larger) showing:
Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
Gt--' 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The -T;. Flea
results of the soils report must be verified in the field by DWQ
by completing & submitting the sails
,
investigation request form, County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in O 1 '?gL
j]y
situ soil must include: A

/
-Soil permeability,
°° ??
Soil composition (% sand, % fines, % organic), and ?-- Tl
GL (
V P -index,
5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: L
A variety of suitable species,
Sizes, spacing and locations of plantings,
Total quantity of each type of plant specified,
A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
} 6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
G 7. A construction sequence that shows how the bioretention cell will be protected from sediment until the
_ l
GL? entire drainage area is stabilized.
8
. The supporting calculations (including underdrain calculations, 9 applicable).
9. A copy of the signed and notarized inspection and maintenance (18M) agreement.
10. A copy of the deed restriction.
Form 5W401-Bioretention-Rev.7 Part III, Page 1 of 1
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
-- Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element Potential roblem: How I will remediate the problem:
The entire filter strip Trash/debris is present. Remove the trash/ debris.
system
The flow splitter device The flow splitter device is Unclog the conveyance and dispose
(if applicable) clogged. of an sediment off-site.
The flow splitter device is Make any necessary repairs or
damaged. replace if damage is too large for
repair.
Form SWU4Q1-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3
BML' element: Potential problem: How I will remediate the roblem:
The swale and the level The swale is clogged with Remove the sediment and dispose
lip sediment of it off-site.
The level lip is cracked, Repair or replace lip.
settled, undercut, eroded or
otherwise damaged,
There is erosion around the Regrade the soil to create a berm
end of the level spreader that that is higher than the level lip, and
shows stormwater has then plant a ground cover and
bypassed it water until it is established. Provide
lime and a one-time fertilizer
application,
Trees or shrubs have begun Remove them.
to grow on the swale or just
downslo a of the level lip.
The bypass channel Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is Study the site to see if a larger
damaged or ripap is rolling bypass channel is needed (enlarge if
downhill. necessary). After this, reestablish
the erosion control material.
The filter strip Grass is too short or too long Maintain grass at a height of
if applicable). a roximatel three to six inches.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on Remove the sediment and
the filter strip. restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated. Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is Remove vegetation by hand if
choking out desirable species. possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality local Regional Office, or the
outlet 401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible parry.
Project name:
BW drainage area number: 1 3 '? (y ,' 7 _ A Nr?
Print name:
Title:
Address:
Phone:
Signature:
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.
1, I'&K, c« 11 31t-o',
a Notary Public for the State of
Nkc , County of W AA LA , do hereby certify that
ik"Q^OLr- & ?k-1c?tvSon 5V%;No r% _ personally appeared before me this 40
day of 3 4ru, atn
aa,, , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
r
r ? F•
1 ;.
I
I? rup
111111\\\\
SEAL
My commission expires ? t`Qn Qh M-1 Q0 8 °\
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
--- Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
- Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
- Heavy equipment will NEVER be driven over the bioretention cell.
- Special care will be taken to prevent sediment from entering the bioretention cell.
- Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problems: How I will remediate the problem:
The entire BMP Trash/debris is resent. Remove the trash/ debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to
bioretention cell erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the
stone verge or swale applicable). sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the Regrade the swale if necessary to
swale (if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or Remove sediment and clogged
covered in sediment (if stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3 Page 1 of 4
BW element: Potential problems: How I will remediate the problem:
The pretreatment area Flow is bypassing Regrade if necessary to route all
pretreatment area and/or flow to the pretreatment area.
gullies have formed. Restabilize the area after adin .
Sediment has accumulated to Search for the source of the
a depth greater than three sediment and remedy the problem if
inches. possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present. Remove the weeds, preferably by
hand.
The bioretention cell: Best professional practices Prune according to best professional
vegetation show that pruning is needed practices.
to maintain optimal plant
health.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present Remove tree stake/wires (which
six months after planting. can kill the tree if not removed).
The bioretention cell: Mulch is breaking down or Spot mulch if there are only random
soils and mulch has floated away. void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are Determine the extent of the clogging
clogged with sediment. - remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off-site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that Dolomitic lime shall be applied as
pH has dropped or heavy recommended per the soil test and
metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new lantin media.
Form SW401-Bioretention O&M-Rev.3 Page 2 of 4
BMP element: Potential roblems: How I will remediate the problem:
The underdrain system Clogging has occurred. Wash out the underdrain system.
(if applicable)
The drop inlet Clogging has occurred. Clean out the drop inlet.. Dispose of
the sediment off-site.
The dro 'inlet is damaged Repair or replace the drop inlet.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet 733-1786.
Form SW401-Bioretention O&M-Rev.3 page 3 of 4
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the Jsystem or prior to any changes to the system or responsible party.
Project name: w a?l7f?dl?p l?Aot?
BMP drainage area number: I- A4:7 l,V
Print
Title:
Address:
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.
a Notary Public for the State of
County of W ?'-RILC, , do hereby certify that
.cane-? de+-so?n Dc-?Au-n personally appeared before me this 44
day of J a v-\,4_ gn l , a *i , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
01%., gTAA??F",
.4 Opp 0
W
LL
???/1111111??
SEAL
My commission expires a5, a, 6 dg;l
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4