20030488 Ver 1_COMPLETE FILE_20030421

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Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
May 29, 2003
DWQ Project No. 03-0488
County: Johnston
Page 1 of 2
Town of Smithfield
P.O. Box 761
Smithfield, NC 27577
Subject Property: Spring Branch Wetland Facility, between Second St. and Neuse River, Smithfield, NC
UT to Neuse River [03-04-02, 27-(41.7), WS-V NSW]
APPROVAL of 401 Water Quality Certification and AUTHORIZATION CERTIFICATE per the Neuse River Buffer
Protection Rules.(15A NCAC 213.0233) with ADDITIONAL CONDITIONS
To Whom It May Concern:
You have our approval, in accordance with the attached conditions and those listed below, to place fill within or
otherwise impact 0.089 acres of wetlands, 145 feet (125 feet of temporary impacts and 20 feet of permanent impacts) of
perennial streams, 67 feet of intermittent streams (permanent) and 48,880 square feet (ft) of protected riparian buffers
for the purpose of constructing the stormwater wetland, as described within your application dated April 14, 2003. After
reviewing your application, we have decided that the impacts are covered by the N.C. Division of Water Quality (DWQ)
General Water Quality Certification Number(s) 3402 (GC3402). The Certification(s) allows you to use Nationwide
Permit(s) 18 when issued by the US Army Corps of Engineers (USACE). This letter shall also act as your approved
Authorization Certificate for impacts to the protected riparian buffers per 15A NCAC 213.0233. In addition, you should
obtain or otherwise comply with any other required federal, state or local permits before you go ahead with your project
including (but not limited to) Erosion and Sediment Control. Also, this approval will expire when the accompanying 404
permit expires unless otherwise specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application. If you change your project,
you must notify us and you may be required to send us a new application. If the property is sold, the new owner must
be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If
total fills for this project (now or in the future) exceed one acre of wetland or 150 linear feet of stream, compensatory
mitigation may be required as described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the
conditions listed in the attached certification and any additional conditions listed below.
Conditions:
1. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, and any
subsequent modifications, the applicant is required to return the attached certificate of completion to the
401/Wetlands Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650.
2. Water Quality Certification
The proposed project must comply. with all of the conditions of General Water Quality Certification (GC) 3402.
3. Stormwater Wetland
The structural stormwater practices as approved by this Office as well as drainage patterns must be maintained in
perpetuity. No changes to the structural stormwater practices shall be made without written authorization from the
Division of Water Quality.
North Carolina Division of Water Quality, WETLANDS / 401 UNIT
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/newetiands
Page 2 of 2
Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and/or
civil penalties. This Certification shall become null and void unless the above conditions are made conditions of the
Federal 404 and/or coastal Area Management Act Permit. This Certification shall expire upon expiration of the 404 or
CAMA permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or stream impacts),
you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. 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, P.O. Box 27447, Raleigh, N.C. 27611-7447. This certification and its conditions are final
and binding unless you ask for a hearing.
Any disputes over determinations regarding this. Authorization Certificate (associated with the approved buffer impacts)
shall be referred in writing to the Director for a decision. The Director's decision is subject to review as provided in
Articles 3 and 4 of G.S. 150B.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and the
Neuse riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any questions, please
telephone John Dorney at 919-733-9646 or Bob Zarzecki at 919-733-9726.
Sincerely,
0DW Klimek, P.E.,
Q, Director
Attachments: Certificate of Completion
GC 3402
Cc: Kevin Martin, S&EC, Inc., 11010 Raven Ridge Road, Raleigh, NC 27614
USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
File Copy
Central Files
DWQ # 03-0488
Date: May 29, 2003
bz
THA
,? Wl
GROUP
Letter of Transmittal
Client
Project
Project Number
Date
Town of Smithfield
Spring Branch Wetland
00372.102
4/17/2003
To: Mr. John Dorney
NCDENR-DWQ Wetlands Group
2321 Crabtree Blvd -Suite 250
Raleigh, NC 27604
Phone: [phone]
Enclosed Please Find:
Qty. Date
From: Kathleen Gray
4011S?SVE® M
u
Description

7 PCN Application Form with cover letter
7 2/18/03 Project Narrative
7 4/9/03 permit drawings C-1 thru C-4 and L-1
1 check for $ 200

Transmitted Via
? Mail
For Your
?Approval
Remarks:
® Overnight ? Courier ? Pick Up ? Other
® Review & Comment ? Use ? Other
Please see application cover letter from Soil & Environmental Consultants, PA.
Copy To:
N01103S ktIIVn0 831dh?
621-101 Hutton Street • Raleigh, North Carolina 27606 • 1 Jflax [phone]
www.rosegrp.com
430488
Soil & Environmental Consultants, PA
11010 Raven Ridge Road al i h, iPiorthrol'na. 14 Phone: [phone] Fax: [phone]
• w ? rn c.com
S&EC Job # 02-7147
?V
US Army Coo Engineers-Regulatory NC DENR-DWQ
6580 Falls of iG?use.Road 2321 Crabtree Blvd
4,0101081ite 250
Suite 120
Raleigh, NC 27615 Raleigh, NC 27604
Attn: Mr. John Thomas APR 2 1 2003 Wetlands Group
Action ID# 200320611 Attn: John Dorney
Dear Mr. Thomas & Mr. Dorney:
The purpose of this letter is to request approval for our clients to utilize Nationwide
Permit 18 for the project known as Spring Branch Wetland Facility. The property (±4.83
acres) is west of Second St., south of Hwy 70 and east of the Neuse River in Smithfield,
NC. The site is shown on the attached plans and USGS Topo Quad vicinity map. On
March. 31, 2003, Mr. John Thomas approved the wetland delineation performed by
S&EC, PA. The owner and applicant is The Town of Smithfield.
Impacts totaling 0.089 acres of vegetated wetland 0.004 ac of intermittent channel, and
145 linear feet of perennial Stream are proposed (see impact maps sheet C-3) for the
facility. The NW 18 impact occurs at the upper most portion of a wetland "finger" and
no jurisdictional wetlands or waters are upstream from the proposed impact. The purpose
of the project is to provide Stormwater "treatment" for waters, which currently do not
receive and are not required to receive any treatment.
Please call is you have questions or require further information. If you intend to perform
site visits please call and we will arrange for someone to accompany you. Further details
are provided on the attached PCN form.
Sincerely,
Kevin Martin KCM/bsa
Enclosures: USGS Quad
Overall Site Plan
Impact Map
PCN Application Form
Charlotte Office: Greensboro Office: Hickory Office:
236 LePhillip Court, Suite C 3817-E Lawndale Drive 622 Coon Mountain Lane
Concord, NC 28025 Greensboro, NC 27455 Taylorsville, NC 28681
Phone: [phone] Phone: [phone] Phone [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
Office Use Only: Fonn Version May 2002
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "No( App?icatne° or °Nia°.1
I. Processing
1. Check all of the approval(s) requested for this project:
X Section 404 Permit X Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
X 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: 18
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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), 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: ?
H. Applicant Information
Owner/Applicant Information
Name: Town of Smithfield
Mailing Address: P.O. Box 761
Smithfield NC 27577
Telephone Number: [phone] Fax Number:
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: N/A
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 5 of 12
M. Project Information
3
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: Spring Branch Wetland Facility
2. T.I.P. Project Number or State Project Number (NCDOT Only):
Property Identification Number (Tax PIN):
4. Location
County: Johnston Nearest Town: Smithfield
Subdivision name (include phase/lot number):
Directions to site (include road numbers, landmarks, etc.): Between Second St. and Neuse
River, see attached USGS vicinity map
5. Site coordinates, if available (UTM or Lat/Long): N: 640, 873.0863
E:2 193, 425.9834
(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): 4.83
7. Nearest body of water (stream/river/sound/ocean/lake): unnamed tributary of Neuse River
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The existing site is an existing park and contains sparse trees
and mostly herbaceous vegetation See site photos on Sheet C-2.
Page 6 of 12
10. Describe the overall project in detail, including th A*; pe?of ey e Pm?o°flows from an existing
Vl Llvaa ----
teachin facilit .
11. Explain the purpose of the proposed work: To improve water quality in the Neuse River
Basin b treating currently untreated stormwater.
IV. Prior Project History
if jurisdictional determinations and/or permits have been requested and/or oe t lainned for this
Include
project (including all prior phases of the same subdivision) in the past, please P
the USACE Action ID Number, DWQ Project Number, application date, and date permits and permits certifications were issued or withdrawn. Proviphotocopies
st eam and
approved wetland,
certifications or other useful information. Describe previously
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. „-r,1,P TTCAC'P. Action ID 200320 111 on
03/31/03
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.
None anticipated.
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. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must 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.
Page 7 of 12
1. Provide a written description of the proposed impacts: Wetland impacts are to an
ephemeral wetland depression and a "ditched" intermittent channel that is maintained in a
mowed herbaceous state to allow construction of a stormwater wetland. Minimal inlet and outlet
structures and stabilization are required along the modified perennial channel. Baseflow will be
maintained in the channel.
2. Individually list wetland impacts below:
Wetland Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
es/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
2 grading 0.089 yes 25' ephemeral

* List each impact separately and identify temporary impacts. Impacts include, but are not !muted to: mecnamzed clearing, grading, tui,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at h :/A,,ww.femn gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: 0.12
Total area of wetland impact proposed: 0.089
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
(indicate on ma)
Type of Impact* Length of
Impact
(linear feet)
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please specify)
1 grading 67' UT Neuse River 2.5' intermittent
1 grading 125' UT Neuse River 12' perennial
2 riprap 20' UT Neuse River 12' perennial

List each impact separately and identity temporary impacts. Impacts include, but are not lmuted to: culverts and associated np-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, 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.
Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
w"'w.m._ amuest.com, etc.).
Page 8 of 12
Cumulative impacts (linear distance in feet) to all streams on site: 145'perennial
(125' is temporary) 67' intermittent (permanent)
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U. S.) below:
Open Water Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Name of Waterbod
(if applicable) y Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. 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.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Size of watershed draining to pond: Expected pond surface area:
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.
Inlet structures are designed to intercept stormflows only so that stream base flow is not
adversely impacted This is the only property the town owns that is suitable for the specified
purposes The facility is designed "off-line: to minimize the impacts.
VIII. Mitigation
Page 9 of 12
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 March 9, 2000, 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 NCWRP 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:/A12o.enr.state.nc.us/ncwetlands/strmgide.html.
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.
Mitigation should not be required by DW or USACE because impacts are below
thresholds and/or temporary. The stormwater wetland being created will be larger than the
low quality wetland impacted and will provide an improvement to downstream water quality.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.ne.us/wEp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A
Page 10 of 12
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes X 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 a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No X
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 Butlers (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.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes X No ? If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 29,480 3 0
2 19,400 1.5 0
Total 48,880 0
Zone I extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
Page 11 of 12
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or. 0260.
Based on an office meeting with Todd St. John and Bob Zarzecki of DWQ, buffer mitigation will
not be required since a stormwater wetland is an allowable use and impacts are temporary since
the entire 50' buffer will be revegetated.
XI. Stormwater (required by DWQ)
Describe impervious acreage (both 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.
No impervious acreage increase will occur, the project will treat off-site stormwater.
XH. 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.
XM. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No X
Is this an after-the-fact permit application?
Yes ? No X
XIV. 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).

0
Applifcant/Agentls Signature I Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 12 of 12
f
?1:L1V1H, 1V. 1...
SE/4 SELMA 15' QUADRANGLE
35078-E3-TF-024
PHOTOINSPECTED 1988
1964
PHOTOREVISED 1973
DMA 5355 111 SE-SERIES V842
Project #: Scale:
02-7147 1" = 2000'
Project Date:
Mgr.: JAB 616102
Figure 1
Location Map
Smithfield SW Treatment
Smithfield, Johnston Co., NC
Soil & Environmental Consultants, PA
11010 Raven Ridge Rd.- Raleigh, NC 27614
[phone] • [phone]
Web Page: www.SandEC.com
ozata? 1 " = zooo' Project Date: Figure 2 -Johnston Co. Soil & Environmental Consultants, PA
Mgr.: JAB 616102 Soil Survey Map 11010 Raven Ridge Rd.- Raleigh, NC 27614
Smithfield SW Treatment [phone] • [phone]
Smithfield, Johnston Co., NC Web Page: www.SandEC.com

088,
A
Project Narrative
SPRING BRANCH WETLAND FACILITY
Town of Smithfield, Johnston County, North Carolina
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Note:
This project narrative is to be use as an attachment to the Pre-Construction Notification (PCN)
Application Form for Section 404 and/or Section 10 Nationwide, Section 401 General Water
Quality Certifications, and Riparian Buffer and Watershed Buffer Rules to be submitted to the
U.S. Army Corps of Engineers and the NCDENR-Division of Water Quality.
Prepared By:
M The Rose Group, Inc.
Engineers*Planners* Surveyors
621-101 Hutton Street-
Raleigh, N.C. 27606
919-829-0555
February 18, 2003
PROJECT LOCATION:
The proposed Spring Branch Wetland Facility is located in the Town of Smithfield, Johnston
County, North Carolina. The specific location of the facility is adjacent to and just north of
Spring Branch, a tributary of the Neuse River, immediately downstream of the crossing with
Second Street near downtown Smithfield. Spring Branch confluences with the Neuse River just
downstream of the project site.
PROJECT DESCRIPTION:
This project consists of the creation of a stormwater wetland by the Town of Smithfield to aid in
the improvement of the water quality of the stormwater runoff from the Spring Branch watershed
and therefore the Neuse River and to serve as an educational facility to improve the public
understanding of the need and function of stormwater Best Management Practices (BMPs).
Specifically, this project is anticipated to highlight the benefits of wetlands to treat stormwater
and serve as a public education opportunity once it is linked with a future greenway system. The
town and the North Carolina State University Extension Specialist originally conceived the
project and obtained Clean Water Management Trust Fund approval to bring it to fruition. The
project area is approximately a five (5) acre portion of a tract of land owned by the Town of
Smithfield.
The primary function of the stormwater wetland facility is to provide treatment of runoff
generated within the Spring Branch watershed. The watershed of approximately 650 acres
contains much of the new commercial development located within Smithfield. An existing
stormwater pond is located upstream of the project and serves to attenuate the peak stormwater
discharge as well as provide treatment of the stormwater runoff from the upper half of the Spring
Branch watershed. The proposed wetland facility will provide treatment for the stormwater
runoff from the entire watershed, serving as a primary benefit to the runoff from the lower half of
the watershed but also furthering the treatment of runoff from the upper half of the watershed.
The location and configuration of the proposed wetland facility will allow for a pedestrian path to
be created adjacent and parallel to the top of the retaining wall. The project will also incorporate
viewing and seating areas around the wetland as well as improved parking in the area of an
existing gravel parking lot in the northeast comer of the site. All of these measures will enhance
the value of the wetland facility as an educational resource for the public.
The wetland facility will be a shallow water wetland that will maintain a permanent pool of
shallow water (maximum depth of 1 ft) as well as allow for approximately four (4) feet of
temporary storage above the permanent pool to provide treatment of the "first flush" runoff
volume generated by various storm events. The temporary storage volume is created by the
construction of an earthen berm that parallels Spring Branch and a two tiered retaining wall that
parallels the northern boundary of the site. The preliminary design allows for the storage of a
volume of runoff that approaches the volume that would result from the 1" rain event over the
entire watershed or greater than the 1" volume for the lower half of the watershed. This "first
flush" runoff is considered to contain the highest concentration of suspended solids as well as
other pollutants typically found in a developed watershed. The wetland facility is designed to
release the stored volume of water within 2 to 5 days.
Page 2 of 4
The collection of the first flush runoff will be achieved by constructing a berm in Spring Branch
channel such that water rising above the elevation of the stream base flow will be diverted to the
wetland facility until the water reaches the elevation of the temporary storage pool. After water
reaches this elevation, it will be allowed to overflow the berm in the channel and continue
flowing downstream. The berm is to be constructed with an open conduit, most likely a small
pipe, to allow for the passage of base flow in the stream.
NEUSE BUFFER IMPACTS:
Zones 1 and 2 of the Riparian Buffer will be impacted by this project. The impacted riparian
buffer area within the project limits (approximately 1.12 acres) will be re-graded and replanted as
part of the project. The existing buffer areas contain some wetland areas, trees, and mostly thick
grassy brush and shrubs as well as mowed grass area.
The project will result in a buffer area containing wetland species as well as new trees and shrubs.
Vegetation will be restored to the area with extensive plantings. The proposed facility berm that
parallels the stream is to be planted with low shrubs providing a screen when viewing from across
Spring Branch. Native tree species are to be planted within the wetland facility as well as the
areas around the facility. In addition, the proposed tiered retaining wall will provide a terrace for
planting along the length of the wall.
The only proposed structures within the riparian buffer are components of the inlet and outlet
devices for the wetland facility. These include earthen berms stabilized with stone, piping needed
for the facility inflow and outflow devices, and pipe outlet protection.
WETLAND AND STREAM IMPACTS:
The project site contains approximately 5522 SF of existing wetland area. This area is the sum of
two (2) separate delineated wetland areas. An intermittent channel located in the eastern portion
of the project area comprises 167 SF of the total area, and the remaining 5355 SF is the area of a
wetland located in the western portion of the project area that is connected to Spring Branch.
The proposed project impacts to the existing wetland areas include the entire area of the
intermittent channel and a portion of the wetland area located in the western portion of the project
area. The total area of the proposed wetlands impacts is approximately 4032 SF or 0.093 AC.
The proposed wetland facility will contain many native species of wetland plants and provide a
larger wetland area than is existing. A small diameter plastic pipe is to be installed through the
facility berm to provide hydraulic connectivity between the remaining existing wetlands and the
proposed wetland facility.
The stream impacts include the measures needed to facilitate the inlet and outlet devices for the
wetland facility. The impact resulting from the installation of the inlet device includes the
construction of a berm in the channel as well as the grading of a portion of the stream channel the
stream bank to aid in the diversion of runoff to the wetland facility. This impact measures
approximately 125 LF. The channel berm is necessary to direct the "first flush" runoff to the
wetland facility. The provision of a flow passage by way of a small plastic pipe or similar device
would maintain the passage of base flow in the stream. The height of the berm (approximately 4-
Page 3 of 4
5 feet) allows for water above the elevation of the temporary storage pool in the wetland facility
to bypass the facility and continue to flow downstream in the channel.
The impact resulting from the construction of the outlet device includes the installation of the
outlet pipe, which will extend into the channel bank as well as the placement of rip rap outlet
protection at the pipe outlet. The rip rap material will be installed in the stream bank and partly
in the channel. This impact will measure approximately 20 linear feet.
The total length of the proposed stream impacts is 145 linear feet measured along the centerline
of the stream channel.
ADDITIONAL INFORMATION:
The drawings submitted as part of the PCN application do not include the final landscaping plans.
Landscaping plans for the wetland facility and surrounding area are to be prepared as part of the
construction drawings for the project. A conceptual plan showing typical plantings through a
section of the wetland facility is included as part of the PCN application drawings.
A formal erosion control plan will also be prepared for submittal to NCDENR-Diversion of Land
Resources, Land Quality Section for review and approval. This plan will be included as part of
the construction drawings for the project.
ATTACHMENTS:
• Soil survey map from the Soil Survey of Johnston County, North Carolina, Issued
October 1994 by the USDA Soil Conservation Service. Portion shown is from Sheet No.
7 of 16.
Page 4 of 4
fi21-101 Hutton Street Raleigh, N.C. 27606
Phone: [phone] Fax: [phone] Weh Address: wx w.rosegrp.com
1
REVISIONS
PROJECT INFORMATION
PROJECT MANAGER: JKW
DRAWN BY: KPG
APPROVED BY:
PROJECT NUMBER: 00372.102
PROJECT NAME
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4 . NuA P.O. Boz 761
„m , m. . ~ 230 Hos ital Road p
Smithfield, N.C. 27577 Phone: [phone]
rF r~ r y r Fax: [phone]
s ~ ~y.
.,..u~ . ~e . f f ~ ~y,
r L SHEET NAME
S m.xa ~ 41 q X` r w.
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''tr _ . • y f v •I • PRELIMINARY DO NOT USE
~ ~
- e~ 5 1 ''K'~ a{_ NuA FOR CONSTRUCTION
r + ~r C~ _ • r+ , ~ , a DRAWING SCALE
f J
,A~ A~ ~ P ~ . ,,~v,' i ~ ~ ~S t ~ ~ , NIA
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DATE
APRIL 9, 2003
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7vnLl. I - ivvv I Vvv /V V
SHEET NUMBER
(PORTION OF USGS QUADRANGLE MAP "SELMA") SOURCE: JOHNSTON COUNTY COUNTY GIS C.1
REF: USDA-SCS SOIL SURVEY OF JOHNSTON COUNTY, ISSU TY, ISSUED OCTOBER 1994, SHEET 7 OF16
OF 4

U 70
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ce ~ 821-1O1 Hullos Street Releigh, N.C. 27808
Phone: [phone] Eax: [phone]
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a , ~ j ~ ~ ~ ' I DRAWN BY: KPGIDEM ~ I
J . ' I r ~I . ~ • 1 • i i APPROVED BY:
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1. I, ~ i • ~ ~ I T NUMBER: 00372.02 . •i I PROJEC
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cn ~ ~ 230 Hospital Road
~ "l ~ SP~i N~~ ~ 4; ~ Smilhiield, N.C. 27577
AT N S ~ C~~ ~b W ~"LA p " + G~~T~v W~TI.~~lp5 ~GH Phone. [phone]
~~a ~ Faz: [phone]
r ~ - r, -a ~1- - . _ _ w- - _ - - _ ---L - U ~ ~ ~
sAN Ira u J 1 ~
SE4U~R ND~2h~A,L ~ t, r~ zr' ~ SNEET NAME y r
1NAT~ I' • , - ~ ~ 1 ~ L
~~~~IA_.T I Q~ - ' - ~ ' • ~ ~ EPT AL NC CO ~ Y /
n c ~ ~ FA ILITY
i - i~ 1 - O ~ G ~T - - ~ LAND C WET I n _ - - I~
1... ~ ~.,;ti - N TO E S
S~ MEUTA~ uIJIT
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L DRAWING SCALE
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621-101 Hutton Street Raleigh, N.C. 27606
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11
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PROJECT INFORMATION
. ~ .
. \ - PROJECT MANAGER: JKW
~ DRAWN BY: KPG
APPROVED BY:
~ 10 ~ 10 ~i ~ ~
. PROJECT NUMBER: 00372.102
A 12
PROJECT NAME
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ion...:.-.::::::.~::::..-.-.-.-.-.~.-.-.-.-.-.~... i
EX. TREE WITHIN 50 FT BUFFER ~ ~ . . TO BE REMOVED TYP. :..._........~:..~--.~~QB:~-:.~,;,:--.-:.--.~ .................1........~ _ ~ ?
..........11 X22
- - - ..-:::.-::.-."112........:...'.-: - - ~ 112 ~ ~p 11~....:.-:.-.-.~ . .
. : F~..-~~~.-.-.-.-.-.~.- w ~ , ,,J.__ F
LEGEND:
EIS ~ :.:...::::.-.'a~ a P.O. Box 761 I . . - - o~ 230 Hospital Roatl
EXISTING ELEVATION CONTOUR - v
Eis ' - Smithfield,N.C.27577
Phone: [phone] Faz: [phone]
108- PROPOSED ELEVATION CONTOUR
EXISTING TREE SHEET NAME
RIPARIAN BUFFER IMPACT SUMMARY: zoNE 1 of RIPARIAN BUFFER
APPROXIMATE PROPERTY UNE 30 FT WIDTH MEASURED N B FFER RIPARIA
TOTAL AREA OF IMPACT WITHIN BUFFER = 48,880 SF = 1.122 AC LANDWARD FROM STREAM BANK
- - - ADJACENT PROPERTY UNE IMPACT AREA = 29,480 SF = 0.677 AC PA T IM
(CONSTRUCTION OF WETLAND FACILITY)
RIPARIAN BUFFER NOTES: PRELIMINARY DO NOT USE
RIPARIAN BUFFER IMPACT AREA IMPACTED AREAS OF RIPARIAN BUFFER ZONES 1 AND 2 ARE TO BE FOR CONSTRUCTION
- - - - - ~ - ~ ~ ~ - ~ ~ RE-PLANTED AS PART OF THE PROPOSED PROJECT. ZONE 2 OF RIPARIAN BUFFER
20 FT WIDTH MEASURED LANDWARD BEYOND ZONE 1 DRAWING SCALE
FINAL LANDSCAPING PLAN IS TO BE INCLUDED AS PART OF
CONSTRUCTION DRAWINGS. IMPACT AREA = 19,400 SF = 0.445 AC HORIZONTAL:1"= 50'
(CONSTRUCTION OF WETLAND FACILITY)
DATE
APRIL 9, 2003
SHEET NUMBER
C-4
4 OF

BU 70
621-101 Hutton Street Raleigh, N.C. 27606
Phone: [phone] Fea: [phone] Web Address: www.rosegrp.com
S 301
°yNs / O,y
p C / Riy~ y0R Ff
6 H R1~R ANC S F
s~ Fr / DR
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EARTHEN BERM WITH RIP RAP STABILIZATION
NORTH
TOP OF BERM = 112 m 9
BERM EL = 110 _ TO WETLAND FACILITY
NOT TO SCALE PI PROPOSED PIPE FOR
B, BASEFLOW PASSAGE
REVISIONS
CHANNEL BOTTOM EL = 107.5 (APPROX.)
EL = 112
3•,~ 3'1 STREAM FLOW
EL = 107.5~APPRO~

CHANNEL BOTTOM
PROPOSED PIPE FOR - TED PIPE FOR
BASEFLOW PASSAGE DW PASSAGE
TR L BERM DETAIL E HANN TREAM
(COMPONENT OF WETLAND FACILITY INLET)

.1~

PROJECT INFORMATION
~ / ~
/ PROJECT MANAGER: JKW
/ ~ DRAWN BY: KPG
APPROVED BY:
\ ~0 ti0 ~/5_ _ ~ 10 tii ~ ~ ~
\ ~ ~ ~ \ PROJECT NUMBER: 00372.102
0 v ~7 ~ \ ~
\ \ \ 12
~j \ PROJECT NAME
7~2 \ \ ~
77 \ s
~ ~ ~ 22
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. '24 4
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1 / 1 _ ,
1 STREAM 0~ ~
PERMANENT IMPACT SITE N0. 2 ~ IMPACT LENGTH = 20 LF \ \
(INSTALLATION OF OUTLET PIPE AND \ \ \
RIP RAP OUTLET PROTECTION) \ \
\ ~ ~ ~ ,1 -
\ / ~ \ i
--1os-,
\ ~ -108_ - - --J ~ / ~ 10~ ~ i 10 ~
1 \ / ~
EXISTING WETLAND \ ~ ~ PERMANENT IMPACT SITE N0. 2 \ 101102' ~ OWNER 1 ~
\ f IMPACT AREA = 3865 SF = 0.089 AC \ ~ 1 ~
~ 102 ' ~ ~
~ ~ 102. / ~ / I i I ~
LEGEND: `~~~10 ~ i
8` - I ~2
11 \ ~ / ~ \ J 22
EXISTING ELEVATION CONTOUR 112 112 \ ` ~2\
10 11 ~ ~ A l ~ ~v
108- PROPOSED ELEVATION CONTOUR 7~ ~6 ~ ~ ~ ~
o a P.O. Boz 761
EXISTING TREE Eis ~ ~ o~ 230 Hos ital Roatl ~ ~ P
Smithfield, N.C. 27577 I
/ Eis APPROXIMATE PROPERTY LINE Eis Phone: [phone]
Fax: [phone]
- - - ADJACENT PROPERTY UNE
SHEET NAME
WETLAND IMPACT AREA
AND AND WETL
M IMPA T TREA
WETLAND AND STREAM IMPACT SUMMARY: PRELIMINARY DO NOT USE
FOR CONSTRUCTION
TOTAL AREA OF IMPACT TO EXISTING WETLANDS = 4032 SF = 0.093 AC EXISTING WETLAND TLAND
PERMANENT IMPACT SITE NC TOTAL LENGTH OF IMPACT TO STREAM = 145 LF IMPACT AREA = 1s~ sF = IMPACT SITE N0. 1 A = 167 SF = 0.004 AC DRAWING SCALE
(MEASURE ALONG CENTERLINE OF STREAM) (INTERMITTENT CHANNEL) JT CHANNEL) STREAM PERMANENT IMPACT SITE N0. 1 HORIZONTAL:1°=50'
IMPACT LENGTH = 125 LF
(CONSTRUCTION OF STREAM BERM
AND FACILITY INLET) SEE DETAIL, THIS SHEET
DATE
APRIL 9, 2003
SHEET NUMBER
C-3
I 4 OF

BU 70 I
/ 621-101 Hutton Street Raleigh, N.C. 27606
S 301 Phone: [phone] Fax: [phone] / Web Address: www.rosegrp.com
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V REVISIONS
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PROPOSED WETLAND STORAGE ~ ~ FACILITY OUTLET DEVICE
RISER WITH DRAWDOWN ORIFICE
~ ^ PROPOSED WETLAND STORAGE
FACILITY OUTLET PIPE
t ~1`.~
PROPOSED PEDESTRIAN PATH ~1 tr
~ ry . iF'•;x.
~ ~
~ ~ ~ ~ r ..~,,h„. rte.
t' e'. r . `7
/ ~
\ ~O ~0 ~ ~ 5- ~ ~ PERMANENT POOL EL = 108.0 PROJECT INFORMATION APPROX. SA = 68,900 SF
- ~ ~ \ ~ ~
~ ~ PROJECT MANAGER: JKW
PIPE OUTLET WITH BACKFLOW \ \ ~ PROPOSED TWO (z) TIERED DRAWN BY: KPG
PREVENTION VALVE AND ~ \ \ ~ 12 ~2 ~ RIP RAP OUTLET PR0TECT10N ~ ~ ~ STONE RETAINING WALL APPROVED BY:
~
~ ~i \ ~ PROPOSED SEATING PROJECT NUMBER: 00372.102
1 ~ < y2 AND VIEWING AREA 2
I I
o ~2 PR E T N 4 OJ C AME
~ AREA OF PROPOSED - - ~ y PARKING IMPROVEMENTS
a ~ ~ ~ 108 \ ' 08 ~ TO EXISTING GRAVEL PARKING ~1 ~ ,
/ 1 _ , 0~ ~ ~ , ~ i
10 ~0~ ~ _ I ' d
EXISTING WETLANDS AREA = 5,355 SF ~ ~ 4 - _ ` -
\ ~ d
\ \ / ~ / -1 - d \ t \ d
\ / \ \ ~ I k'
- -108--
/ ~ 107 ~ \ ~ '108_ . - ~ ~ 10 \
\ 107107.5. / ~ ~ ~ ,
~ ~ 107 1 EX RCP TO BE CUT BACK 1 TO ALLOW DISCHARGE Tp
~ 107, I ' ~ EHTER WEiI.AND FACNJTY
~ ~ 1p~--- I ` / f io8~-------~ ~ I ~ OWNER
~ ?
110- ~ ~ ~ ~ ~ ~ ?2
112- 110 112 112 J~ 11z o~
1p
- ~ ~
LEGEND: '
EIS , I _ O~ ~O
EXISTING ELEVATION CONTOUR
TEMPORARY STORAGE POOL EL = 112.0 EIS
APPROX. SA = 93,000 SF PROPOSED 4 WIDE BERM
106 PROPOSED ELEVAl10N CONTOUR EL = 112.0 P.O. Boz 761 EXISTING INTERMITTENT
CHANNEL 230 HOSplfal Road 3' WIDE - 166.5 SF Smithfield, N.C. 27577
EXISTING TREE Phone: [phone]
FaX: [phone]
APPROXIMATE PROPERTY LINE
1
- - - ADJACENT PROPERTY LINE SHEET NAME
PROPOSED WETLAND FACIUTY
INLET WEIR WETLAND FA ILITY PROPOSED PIPE FOR STABILIZED W1TH FELD STONE
BASEFLOW PASSAGE
GENERAL NOTES: LAY T
1. FADED ITEMS ARE EXISTING. PRELIMINARY DO NOT USE
2. TOPOGRAPHIC AND EXISTING SITE CONDITIONS TAKEN FROM A DRAWING TITLED "TOPOGRAPHY AND LOCATION MAP PROPOSED STREAM CHANNEL BERM FOR CONSTRUCTION
OF PROPERTY AT BOB WALLACE KIDDEE PARK FOR STABIUZED WITH FIELD STONE
THE TOWN OF SMITHFIELD, NORTH CAROLINA" BY CAD BERM HEIGHT = 4 - 5 FT DRAWING SCALE
SOLUTIONS, DATED NOVEMBER 2, 2001. MAP BASED ON BERM IS COMPONENT OF INLET DEVICE
FIELD WORK PERFORMED ON OCTOBER 2, 2001 BY KRAUSE NEEDED TO DIRECT RUNOFF TO WETLAND HORIZONTAL:1"=50' FACILITY
SURVEYING ASSOCIATES, INC. OF GARNER, N.C.
3. WETLANDS DELINEATION BY KEVIN MARTIN OF SOIL & PIPE OR SIMILAR STRUCTURE SHALL
ENVIRONMENTAL CONSULTANTS, PA. 4. BOUNDARY IS APPROXIMATE AND SHOWN PER GIS BEINCORPORATED IN BERM DESIGN TO ALLOW PASSAGE OF STREAM
INFORMATION FOR JOHNSTON COUNTY "ONLY". NO BASE FLOW DATE
DEED OF RECORD OR RECORDED PLATISURVEY FOUND APRIL 9, 2003
OR PROVIDED. .r
c inr~ri nninc nor=n - c cc n nr
'l. Vv L I LAI V L/ l P11 \LP1 - V V V %11 , V. I L l %a
6. ADJOINING OWNERS INFORMATION PER JOHNSTON COUNTY REGISTRY OF DEEDS AND GIS. SHEET NUMBER
7. ALL DIMENSIONS, ELEVATIONS, AND GRADES SHOWN ARE
PRELIMINARY.
.2
4 OF

U 70
~ uN°
ce ~ 821-1O1 Hullos Street Releigh, N.C. 27808
Phone: [phone] Eax: [phone]
s r i 30, Web Address: www.roaegrp.com
ANN s oy
aR c
~Nc ' y~R FF a ~ y Rl~RS qN S
!D ~ ~ T
R, ~
o UO
GRAPHIC SCALE
,a a s ,o zo
NORTH (IN FEET )
1 inch = 10tL
NOT TO SCALE
REVISIONS
,
•
• ' ,
. ;
• ~ . ~ , .
~ ,
l ~ l '
. -
Y ~ BUILDING FOUNDATION . .

'
F ~ ' ~ ~~~~IIeJIINARY DR~~l~~~~+.~~
j I i i
i ' ' - ~ • ~ DO not use for construcli~~~~~ • • ~
~ ~ Y ~ . ~ • ~ . ~
+ ' 1
~ ~ Z , • ' • G~
I ~ i ~ - ,
i ~ ~ ~ ~
. ~ ~ ~ it I , ` _ • .D
t I , J~ I ~ z
II • ~ , / ( ~ • n ~ . ~
~ r • I ' ' ~ Y ~ PROJECT INFORMATION
z ~ ~ 8. c. • i i ' '
PROJECT MANAGER: JKW ~i i ,
a , ~ j ~ ~ ~ ' I DRAWN BY: KPGIDEM ~ I
J . ' I r ~I . ~ • 1 • i i APPROVED BY:
~ ' ~'11 ' . i
1. I, ~ i • ~ ~ I T NUMBER: 00372.02 . •i I PROJEC
. j ~ • • I ~ li ' . ~ I
W - ~ ~ .
' - W w ' ' I • I ~ PROJECT NAME
. i
~ ~ I 1 I ~'1 1 • ~
~ WETLAND AR NN LL 4 ~ ' I ~ • ! 'I ~
i Q
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~ ~ Q p ~ ! i l
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~ Lw ~ ' OWNER
r~
~
1N~TLAIJb A~~ Lops I ~1 m ~ _ ~ PI,A ,A(~J •
s _ IA _ _ _ P~v~yT~IAN--PATH I.A~IT M~ L V~~ I ~
~ T ~ I , ,
~ ti ~A LI?JC~ WITH •
n~ ~ ~ . STD~JE CDLtI IJS M
' ~ ~ J , • , .
c) _ ` _ - - - - u -
cn ~ ~ 230 Hospital Road
~ "l ~ SP~i N~~ ~ 4; ~ Smilhiield, N.C. 27577
AT N S ~ C~~ ~b W ~"LA p " + G~~T~v W~TI.~~lp5 ~GH Phone. [phone]
~~a ~ Faz: [phone]
r ~ - r, -a ~1- - . _ _ w- - _ - - _ ---L - U ~ ~ ~
sAN Ira u J 1 ~
SE4U~R ND~2h~A,L ~ t, r~ zr' ~ SNEET NAME y r
1NAT~ I' • , - ~ ~ 1 ~ L
~~~~IA_.T I Q~ - ' - ~ ' • ~ ~ EPT AL NC CO ~ Y /
n c ~ ~ FA ILITY
i - i~ 1 - O ~ G ~T - - ~ LAND C WET I n _ - - I~
1... ~ ~.,;ti - N TO E S
S~ MEUTA~ uIJIT
C - -----------~~Ta l u I N ~ __WA~~S- - _ _ - - _ _ _ _ _ - - - . _ _ _ - - _ _ _ _ _ _ _ - _
L DRAWING SCALE
n
(T HORIZONTAL:1"=10'
c (y-' VERTICAL:1 "=10'
u ~n aW
i~a
ci DATE
c~ i r r)
nFr.F~aRFra ~nn~
l1 CJ

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~ Q. ~7 '
I (l
Ti u l - li
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L L~
(L ~n T 1 OF
n

BU 70
621-101 Hutton Street Raleigh, N.C. 27606
Phone: [phone] Fax: [phone] Web Address: Www.rosegrp.com
S 301 oyN
5 pN
A / Riy~ ~y~R FF
a / R~~R qNC s F
sr Fr / OR
0 ~o

NORTH W 0
V
NOT TO SCALE
REVISIONS

11
ti
PROJECT INFORMATION
. ~ .
. \ - PROJECT MANAGER: JKW
~ DRAWN BY: KPG
APPROVED BY:
~ 10 ~ 10 ~i ~ ~
. PROJECT NUMBER: 00372.102
A 12
PROJECT NAME
~ ~ \ E
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~ i ~ i _
_ - -1 oe- --1D6-,
X08_ - - ~ i 1os---- ~ 107 10 ~ 4. -
1
. 1 ~ ~ 0~. ~ 10~ ( ~ ~ OWNER
l 1
.....~o ~ ~ 1
ion...:.-.::::::.~::::..-.-.-.-.-.~.-.-.-.-.-.~... i
EX. TREE WITHIN 50 FT BUFFER ~ ~ . . TO BE REMOVED TYP. :..._........~:..~--.~~QB:~-:.~,;,:--.-:.--.~ .................1........~ _ ~ ?
..........11 X22
- - - ..-:::.-::.-."112........:...'.-: - - ~ 112 ~ ~p 11~....:.-:.-.-.~ . .
. : F~..-~~~.-.-.-.-.-.~.- w ~ , ,,J.__ F
LEGEND:
EIS ~ :.:...::::.-.'a~ a P.O. Box 761 I . . - - o~ 230 Hospital Roatl
EXISTING ELEVATION CONTOUR - v
Eis ' - Smithfield,N.C.27577
Phone: [phone] Faz: [phone]
108- PROPOSED ELEVATION CONTOUR
EXISTING TREE SHEET NAME
RIPARIAN BUFFER IMPACT SUMMARY: zoNE 1 of RIPARIAN BUFFER
APPROXIMATE PROPERTY UNE 30 FT WIDTH MEASURED N B FFER RIPARIA
TOTAL AREA OF IMPACT WITHIN BUFFER = 48,880 SF = 1.122 AC LANDWARD FROM STREAM BANK
- - - ADJACENT PROPERTY UNE IMPACT AREA = 29,480 SF = 0.677 AC PA T IM
(CONSTRUCTION OF WETLAND FACILITY)
RIPARIAN BUFFER NOTES: PRELIMINARY DO NOT USE
RIPARIAN BUFFER IMPACT AREA IMPACTED AREAS OF RIPARIAN BUFFER ZONES 1 AND 2 ARE TO BE FOR CONSTRUCTION
- - - - - ~ - ~ ~ ~ - ~ ~ RE-PLANTED AS PART OF THE PROPOSED PROJECT. ZONE 2 OF RIPARIAN BUFFER
20 FT WIDTH MEASURED LANDWARD BEYOND ZONE 1 DRAWING SCALE
FINAL LANDSCAPING PLAN IS TO BE INCLUDED AS PART OF
CONSTRUCTION DRAWINGS. IMPACT AREA = 19,400 SF = 0.445 AC HORIZONTAL:1"= 50'
(CONSTRUCTION OF WETLAND FACILITY)
DATE
APRIL 9, 2003
SHEET NUMBER
C-4
4 OF

BU 70
621-101 Hutton Street Raleigh, N.C. 27606
Phone: [phone] Fea: [phone] Web Address: www.rosegrp.com
S 301
°yNs / O,y
p C / Riy~ y0R Ff
6 H R1~R ANC S F
s~ Fr / DR
~ /
O ~0 /

EARTHEN BERM WITH RIP RAP STABILIZATION
NORTH
TOP OF BERM = 112 m 9
BERM EL = 110 _ TO WETLAND FACILITY
NOT TO SCALE PI PROPOSED PIPE FOR
B, BASEFLOW PASSAGE
REVISIONS
CHANNEL BOTTOM EL = 107.5 (APPROX.)
EL = 112
3•,~ 3'1 STREAM FLOW
EL = 107.5~APPRO~

CHANNEL BOTTOM
PROPOSED PIPE FOR - TED PIPE FOR
BASEFLOW PASSAGE DW PASSAGE
TR L BERM DETAIL E HANN TREAM
(COMPONENT OF WETLAND FACILITY INLET)

.1~

PROJECT INFORMATION
~ / ~
/ PROJECT MANAGER: JKW
/ ~ DRAWN BY: KPG
APPROVED BY:
\ ~0 ti0 ~/5_ _ ~ 10 tii ~ ~ ~
\ ~ ~ ~ \ PROJECT NUMBER: 00372.102
0 v ~7 ~ \ ~
\ \ \ 12
~j \ PROJECT NAME
7~2 \ \ ~
77 \ s
~ ~ ~ 22
~ ~ ~ ~ ~ o.
. '24 4
o ~~loa
a `
1 / 1 _ ,
1 STREAM 0~ ~
PERMANENT IMPACT SITE N0. 2 ~ IMPACT LENGTH = 20 LF \ \
(INSTALLATION OF OUTLET PIPE AND \ \ \
RIP RAP OUTLET PROTECTION) \ \
\ ~ ~ ~ ,1 -
\ / ~ \ i
--1os-,
\ ~ -108_ - - --J ~ / ~ 10~ ~ i 10 ~
1 \ / ~
EXISTING WETLAND \ ~ ~ PERMANENT IMPACT SITE N0. 2 \ 101102' ~ OWNER 1 ~
\ f IMPACT AREA = 3865 SF = 0.089 AC \ ~ 1 ~
~ 102 ' ~ ~
~ ~ 102. / ~ / I i I ~
LEGEND: `~~~10 ~ i
8` - I ~2
11 \ ~ / ~ \ J 22
EXISTING ELEVATION CONTOUR 112 112 \ ` ~2\
10 11 ~ ~ A l ~ ~v
108- PROPOSED ELEVATION CONTOUR 7~ ~6 ~ ~ ~ ~
o a P.O. Boz 761
EXISTING TREE Eis ~ ~ o~ 230 Hos ital Roatl ~ ~ P
Smithfield, N.C. 27577 I
/ Eis APPROXIMATE PROPERTY LINE Eis Phone: [phone]
Fax: [phone]
- - - ADJACENT PROPERTY UNE
SHEET NAME
WETLAND IMPACT AREA
AND AND WETL
M IMPA T TREA
WETLAND AND STREAM IMPACT SUMMARY: PRELIMINARY DO NOT USE
FOR CONSTRUCTION
TOTAL AREA OF IMPACT TO EXISTING WETLANDS = 4032 SF = 0.093 AC EXISTING WETLAND TLAND
PERMANENT IMPACT SITE NC TOTAL LENGTH OF IMPACT TO STREAM = 145 LF IMPACT AREA = 1s~ sF = IMPACT SITE N0. 1 A = 167 SF = 0.004 AC DRAWING SCALE
(MEASURE ALONG CENTERLINE OF STREAM) (INTERMITTENT CHANNEL) JT CHANNEL) STREAM PERMANENT IMPACT SITE N0. 1 HORIZONTAL:1°=50'
IMPACT LENGTH = 125 LF
(CONSTRUCTION OF STREAM BERM
AND FACILITY INLET) SEE DETAIL, THIS SHEET
DATE
APRIL 9, 2003
SHEET NUMBER
C-3
I 4 OF

BU 70 I
/ 621-101 Hutton Street Raleigh, N.C. 27606
S 301 Phone: [phone] Fax: [phone] / Web Address: www.rosegrp.com
°"NS / oN
pR C F LNG y~R F
RI 9q yS ~fRSj Nc FF
r DR
O /
~0 /
g
m
' ~ " / ~ ti.~ . ~,a
/ r .J'. ~ J° ,a4 "`1 - ~ v
T~ i
NORTH ~ ~ , ~ - ; ~ .
g;n ,r~ ~ C it d

• t ~ ~.r, a. r NOT TO SCALE ~~i~~ j ~
~ ~'}a.
V REVISIONS
w
°J rD ,
y ,F 9P' ~ nl '
"F^- i E O( k~
~ ~ ~ L ~t J
r f, ~1 ~ ~ '1 a ' ~ , ~ ar'
b " ~ 'd. ~r~ ~ ~ _
` ~k~a F~a
, ~ , ~y , ls~ s
PROPOSED WETLAND STORAGE ~ ~ FACILITY OUTLET DEVICE
RISER WITH DRAWDOWN ORIFICE
~ ^ PROPOSED WETLAND STORAGE
FACILITY OUTLET PIPE
t ~1`.~
PROPOSED PEDESTRIAN PATH ~1 tr
~ ry . iF'•;x.
~ ~
~ ~ ~ ~ r ..~,,h„. rte.
t' e'. r . `7
/ ~
\ ~O ~0 ~ ~ 5- ~ ~ PERMANENT POOL EL = 108.0 PROJECT INFORMATION APPROX. SA = 68,900 SF
- ~ ~ \ ~ ~
~ ~ PROJECT MANAGER: JKW
PIPE OUTLET WITH BACKFLOW \ \ ~ PROPOSED TWO (z) TIERED DRAWN BY: KPG
PREVENTION VALVE AND ~ \ \ ~ 12 ~2 ~ RIP RAP OUTLET PR0TECT10N ~ ~ ~ STONE RETAINING WALL APPROVED BY:
~
~ ~i \ ~ PROPOSED SEATING PROJECT NUMBER: 00372.102
1 ~ < y2 AND VIEWING AREA 2
I I
o ~2 PR E T N 4 OJ C AME
~ AREA OF PROPOSED - - ~ y PARKING IMPROVEMENTS
a ~ ~ ~ 108 \ ' 08 ~ TO EXISTING GRAVEL PARKING ~1 ~ ,
/ 1 _ , 0~ ~ ~ , ~ i
10 ~0~ ~ _ I ' d
EXISTING WETLANDS AREA = 5,355 SF ~ ~ 4 - _ ` -
\ ~ d
\ \ / ~ / -1 - d \ t \ d
\ / \ \ ~ I k'
- -108--
/ ~ 107 ~ \ ~ '108_ . - ~ ~ 10 \
\ 107107.5. / ~ ~ ~ ,
~ ~ 107 1 EX RCP TO BE CUT BACK 1 TO ALLOW DISCHARGE Tp
~ 107, I ' ~ EHTER WEiI.AND FACNJTY
~ ~ 1p~--- I ` / f io8~-------~ ~ I ~ OWNER
~ ?
110- ~ ~ ~ ~ ~ ~ ?2
112- 110 112 112 J~ 11z o~
1p
- ~ ~
LEGEND: '
EIS , I _ O~ ~O
EXISTING ELEVATION CONTOUR
TEMPORARY STORAGE POOL EL = 112.0 EIS
APPROX. SA = 93,000 SF PROPOSED 4 WIDE BERM
106 PROPOSED ELEVAl10N CONTOUR EL = 112.0 P.O. Boz 761 EXISTING INTERMITTENT
CHANNEL 230 HOSplfal Road 3' WIDE - 166.5 SF Smithfield, N.C. 27577
EXISTING TREE Phone: [phone]
FaX: [phone]
APPROXIMATE PROPERTY LINE
1
- - - ADJACENT PROPERTY LINE SHEET NAME
PROPOSED WETLAND FACIUTY
INLET WEIR WETLAND FA ILITY PROPOSED PIPE FOR STABILIZED W1TH FELD STONE
BASEFLOW PASSAGE
GENERAL NOTES: LAY T
1. FADED ITEMS ARE EXISTING. PRELIMINARY DO NOT USE
2. TOPOGRAPHIC AND EXISTING SITE CONDITIONS TAKEN FROM A DRAWING TITLED "TOPOGRAPHY AND LOCATION MAP PROPOSED STREAM CHANNEL BERM FOR CONSTRUCTION
OF PROPERTY AT BOB WALLACE KIDDEE PARK FOR STABIUZED WITH FIELD STONE
THE TOWN OF SMITHFIELD, NORTH CAROLINA" BY CAD BERM HEIGHT = 4 - 5 FT DRAWING SCALE
SOLUTIONS, DATED NOVEMBER 2, 2001. MAP BASED ON BERM IS COMPONENT OF INLET DEVICE
FIELD WORK PERFORMED ON OCTOBER 2, 2001 BY KRAUSE NEEDED TO DIRECT RUNOFF TO WETLAND HORIZONTAL:1"=50' FACILITY
SURVEYING ASSOCIATES, INC. OF GARNER, N.C.
3. WETLANDS DELINEATION BY KEVIN MARTIN OF SOIL & PIPE OR SIMILAR STRUCTURE SHALL
ENVIRONMENTAL CONSULTANTS, PA. 4. BOUNDARY IS APPROXIMATE AND SHOWN PER GIS BEINCORPORATED IN BERM DESIGN TO ALLOW PASSAGE OF STREAM
INFORMATION FOR JOHNSTON COUNTY "ONLY". NO BASE FLOW DATE
DEED OF RECORD OR RECORDED PLATISURVEY FOUND APRIL 9, 2003
OR PROVIDED. .r
c inr~ri nninc nor=n - c cc n nr
'l. Vv L I LAI V L/ l P11 \LP1 - V V V %11 , V. I L l %a
6. ADJOINING OWNERS INFORMATION PER JOHNSTON COUNTY REGISTRY OF DEEDS AND GIS. SHEET NUMBER
7. ALL DIMENSIONS, ELEVATIONS, AND GRADES SHOWN ARE
PRELIMINARY.
.2
4 OF

fi21-101 Hutton Street Raleigh, N.C. 27606
Phone: [phone] Fax: [phone] Weh Address: wx w.rosegrp.com
1
REVISIONS
PROJECT INFORMATION
PROJECT MANAGER: JKW
DRAWN BY: KPG
APPROVED BY:
PROJECT NUMBER: 00372.102
PROJECT NAME
~t
~ t r~r, • ~ ,
r' ~ ,r 1 ,
Suns'et`, ~ ~ J,' r~
omor~a! Pa+k , ~ ~ i
i ~ I • C~RI@tet"y~ ; , ~ w 'gin( ~
• ~ . B.~mt Bu ~ ~
~rl±
i ~ OWNER
~ t
1 - • +r` r • ~ • ~
.~ti s•f swt f, ~ ~ /f ~ Ch ~
f~ ~ ~
,1 - J
"w;` ~ ' ~ ,f
fr•
4 . NuA P.O. Boz 761
„m , m. . ~ 230 Hos ital Road p
Smithfield, N.C. 27577 Phone: [phone]
rF r~ r y r Fax: [phone]
s ~ ~y.
.,..u~ . ~e . f f ~ ~y,
r L SHEET NAME
S m.xa ~ 41 q X` r w.
~ - 1 ~ r. ~ 11Y w ;r~~. ~~~fl * f , ..r~ n. VER
''tr _ . • y f v •I • PRELIMINARY DO NOT USE
~ ~
- e~ 5 1 ''K'~ a{_ NuA FOR CONSTRUCTION
r + ~r C~ _ • r+ , ~ , a DRAWING SCALE
f J
,A~ A~ ~ P ~ . ,,~v,' i ~ ~ ~S t ~ ~ , NIA
" f f ~ i•~ #E~., .f
• /1 • ! f 4. f{ • • ~ y ~ ? ~ !t
{f ~ f ~ F ~ •
DATE
APRIL 9, 2003
~~ni ~~?-~nnn~ crni C• 1~~- tinny ;nn~
7vnLl. I - ivvv I Vvv /V V
SHEET NUMBER
(PORTION OF USGS QUADRANGLE MAP "SELMA") SOURCE: JOHNSTON COUNTY COUNTY GIS C.1
REF: USDA-SCS SOIL SURVEY OF JOHNSTON COUNTY, ISSU TY, ISSUED OCTOBER 1994, SHEET 7 OF16
OF 4