20080722 Ver 1_401 Application_20080408

^ ~ ^ Kimley-Horn
~ and Associates, Inc.
Apri121, 2008
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Attn: Cyndi Karoly
2321 Crabtree Blvd., Suite 250
Raleigh, NC 27604
Re: Southwest Water Transmission Main, Phase C
NWP # 12 Application Submittal
Charlotte, Mecklenburg County, North Carolina
Dear Ms. Karoly:
Enclosed for your review is a copy of a Section 401 Pre-Construction Notification
pursuant to Nationwide Permit # 12 for the above referenced project.
If there is any additional information you need or any way we can assist in
expediting the processing of this application, please do not hesitate to contact me at
[phone] or by email at [e-mail].
Very truly yours,
Kimley-Horn and Associates, Inc.
Tommy Cousins
Environmental Scientist
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08 0 72 2
Pre-Construction Notification Application Form
for Nationwide Permit 12
Southwest Water Transmission Main -Phase C
Charlotte Mecklenburg Utilities Department
Charlotte, North Carolina
Prepared for:
N.C. Division of Water Quality
Raleigh, North Carolina
April 2008
©Kimley-Horn and Associates, Inc. 2008
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TABLE OF CONTENTS
A. NARRATIVE
B. PROJECT SUMMARY SHEET
C. PRE-CONSTRUCTION NOTIFICATION
(PCN) APPLICATION FORM
D. SITE LOCATION MAPS
SITE VICINITY MAP
USGS TOPOGRAPHIC MAP
TEMPORARYSTREAMIMPACT #1
TEMPORARY STREAMIMPACT #2
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E. REFERENCE MATERIALS
F. CONSTRUCTION PLANS AND DETAILS
08 0 72 2

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FROM NCDENR EROSION CONTROL SUBMITTAL
Date: February 2008
Subject: Southwest Water Transmission Main, Phase C
Charlotte, NC
Project Description
The purpose of the above referenced project is to construct approximately 4.2 miles (22,190 LF) of 42",
36", and 30" diameter water transmission main along Steele Creek Road (NC 160) from the realigned
Shopton Road West to South Tryon Street (NC 49). The described alignment is located in southwest
Mecklenburg County. The project will disturb approximately 15.3 acres of land during the construction
period. The proposed water main is being constructed in order to provide better water service to the
residents of southwest Mecklenburg County by connecting to existing water mains at Brown-Grier Road,
Westinghouse Boulevard, Sledge Road, and South Tryon Street. The Charlotte Mecklenburg Utilities
retained Kimley-Horn and Associates, Inc. to design the proposed transmission water main.
Site Description
The majority of the project is located outside existing NCDOT rights-of--way in order to prevent as much
interference as possible with the future widening of highly congested Steele Creek Road. The proposed
project will cross underneath two NCDOT rights-of--way: Steele Creek Road (NC 160) and South Tryon
Street (NC 49). The appropriate permanent utility and temporary construction easements are in the process
of being acquired for all areas in which the proposed alignment is outside NCDOT right-of--way
boundaries. The general vicinity of the project area includes undeveloped, residential, and commercial
properties.
Erosion and Sedimentation Control Practices
Temporary Gravel Construction EntranceBxit -Temporary gavel construction entrances will be installed
as appropriate along the 4.2 miles of water line as described in the attached reference materials (see
NCDENR Detai16.06). The project plans detail the 12' X 50' (minimum) temporary gravel construction
entrance/exits.
Silt Fence -This measure will be installed to control the sediment-laden runoff from the disturbed areas.
The plans outline the location and extents of the fence (see NCDENR Detai16.62).
Temporary and Permanent Seeding - In an effort to stabilize the denuded areas, rapid-growing annual
grasses will be planted to minimize the time denuded areas are exposed. Disturbed areas along the project
route which are not to be paved will be seeded and mulched. These seeding plans are attached and located
in the reference material (XIV-18 to 20).
Temporary Rock Check Dam -check dams within small drainage channels and at locations deemed
appropriate by the engineer considering the size of the drainage area were used throughout the project to
prevent land erosion and sedimentation within downstream bodies of water (see NCDENR Detai16.83).
This measure was also used at various locations in addition to silt fence.

Hardware Cloth and Gravel Inlet Protection - In an effort to prevent sediment-laden runoff from entering
existing yard inlet structures until permanent seeding has been sufficiently established, this type of inlet
protection will be used (See NCDENR Detai16.51)
' Catch Basin Inlet Protection - In areas in which asphalt surfaces are to be open cut and nearby drop inlet
structures are at risk of receiving sediment-laden runoff, this type of inlet protection will be used (See City
of Charlotte Land Development Standards Detai130.15)
Temporary Sediment Trap - In an effort to protect receiving streams, lakes, drainage systems, and adjacent
properties, this device will be installed in areas along the proposed construction site where runoff is being
transported off-site, and it is determined by the engineer that rock check dams in series with rock pipe inlet
' protection are not sufficient erosion control devices. (See NCDENR Detai16.60)
Rock Pipe Inlet Protection - In an effort to prevent sediment from entering, accumulating in, and being
transferred by a culvert or storm drainage system, this device will be installed along the proposed
construction site at locations in which a Temporary Sediment Trap is deemed unnecessary by the engineer.
Rock Pipe Inlet Protection will remain in place until proper stabilization of the entire drainage area has
' been achieved. (See NCDENR Detai16.55)
Temporary Stream Impact - In an effort to prevent the erosion of disturbed stream banks created by the
' installation of the waterline across an existing stream, the following erosion control measures will be used.
Divert small stream flows around proposed work area by utilizing a coffer dam and pump (NCDENR
Manua16.70.2). Once pipe installation is complete, the contractor is to reinforce the disturbed areas of the
stream channel with geotextile fabric covered by stone as shown in detai16.70a. Use of this detail is to
demonstrate installation of Rip-Rap only. Logging mats will be installed as the primary means to cross the
stream if deemed necessary by the contractor.
NOTE: The reference material shown in the following pages will be included on the detail sheet that is
issued with the construction documents.

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B. PROJECT SUMMARY SHEET

~ Kimley-Horn
^ ~ ^ and Associates, Inc.

Project Summary Sheet
Project Name: Southwest Water Transmission Main. Phase C
Applicant Name and Address: _Charlotte Mecklenburg Utilities (Barry Shearin, PE)
5100 Brookshire Blvd
Charlotte, NC 28216
Telephone Number:~704) 391-5137
Type of Request: ®Nationwide PCN (NWP # 12) ^ Indivic
^ Jurisdictional Determination ^ Other:
Included Attachments: ®Project Plans ®USGS Map
^ Agent Authorization ^ Delineation Sketch
^ Data Forms (Up & Wet) ^ NCDWQ Stream Forms
^ NCEEP Confirmation ^ Aerial Photo
^ Agency Correspondence ^ Other:
lual Permit Application
^ NRCS Soil Survey
^ Delineation Survey
^ USACE Stream Forms
^ Site Photos
^ Other:
Check if applicable: ^ CAMA County ^ Trout County ^ Isolated Waters
^ Section 7, ESA ^ Section 106, NHPA ^ EFH
^ Mitigation Proposed (^ NC EEP ^ On-Site ^ Off-Site ^ Other)
County: Mecklenburg Nearest City/Town: Charlotte
Waterway: Walker Branch
H.U.C.: 03050103 and 03050101
Property Size (acres):
Site Coordinates (in decimal degrees): See PCN °N
River Basin: Catawba
USGS Quad Name: Fort Mill and Charlotte West
Approx. Size of Jurisdiction on Site (acres):
See PCN °W
Project Location: See PCN
Site Description: See PCN
Impact Summary (if applicable): Two temporary stream crossings
Open Water Wetland Stream Channel
NWP
# (acres) (acres) Intermittent and/or Unimportant
A vatic Function Perennial and/or Important
A vatic Function
Tem Pe T P Tem Perm. Tem Perm.
p. rm. emp. erm. If ac If ac if ac if Ac
12 0 0 0 0 0 0 0 0 60 0.006 0 0

Total
Total Permanent Impact to Waters of the U.S. (acres) 0
Kimley-Horn Contact: Tommy Cousins
^
4651 Charlotte Park Dr. Suite 300
Charlotte, North Carolina
28217
Direct Number: 704 319-7688
^
TEL [phone]
FAX [phone]

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C. PRE-CONSTRUCTION NOTIFICATION
(PCN) APPLICATION FORM

Office Use Only: Form Vetsion March OS
USACE Action ID No. DWQ No. ~ 8 X 7 2 2
(If anv particular item is not aunlicable to this nroiect, please enter "Not Annlicable" or "N/A".)
t I. Processing ~, ~ ~ ,
1. Check all of the approval(s) requested for this project: ~------
®Section 404 Permit ^ Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide Re Tonal or General Permit Numbers Re uested: Nationwide Permit 12
g () q
' 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: ^
II. Applicant Information ~ ~~~ ~-? ~~~ ~~'
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1. Owner/Applicant Information APR ~ ~ Z00$
Name: Charlotte Mecklenbur Utilities Barry Shearin, PE)
Mailing Address: 5100 Brookshire Boulevard NR - wArErl cupr~rr
Charlotte NC 28216 ~ANGi
Telephone Number: 704-391-5137 Fax Number: 704-398-9180
E-mail Address: bshearin(a~ci.charlotte.nc.us
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: Tommy Cousins
' Company Affiliation: Kimley-Horn and Associates
Mailing Address: 4651 Charlotte Park Dr., Suite 300
Charlotte NC 28217
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: tommy.cousins(a~kimley-horn.com
III. Project Information
' Updated 11/1/2005
Page 1 of 8

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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: Southwest Water Transmission Main, Phase C
2. T.I.P. Project Number or State Project Number (NCDOT Only): Not Applicable
3. Property Identification Number (Tax PIN): DOT Right-of--Way and multiple parcels
4. Location
County: Mecklenburg Nearest Town: Charlotte
Subdivision name (include phase/lot number): Not Applicable
Directions to site (include road numbers/names, landmarks, etc.): From Charlotte go south
on Tryon St. Right on I-485. Left on Steele Creek. Project begins at intersection of Steele
Creek and Shopton Rd.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Stream Crossing 1: 35.1172 °N 80.9860 °W
Stream Crossing 2: 35.1092 °N 80.9980 °W
6. Property size (acres):
' 7. Name ofnearest receiving body of water: Walker Branch (DWQ Index 11-137-10-1)
8. River Basin: Catawba River Basin
' (Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.cnr.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: Project area is a mix of commercial, residential, and
agricultural uses. See attached Site Description.
Updated 11/1/2005
Page 2 of 8

10. Describe the overall project in detail, including the type of equipment to be used:
See attached Project Description. Equipment includes a backhoe and all other necessary
equipment to install the water main. See the attached reference material for more details.
' 11. Explain the purpose of the proposed work: To provide better water service to the residents
of southwest Mecklenburg County.
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. No jurisdictional determinations or permits have been requested for this
project.
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 permit requests are 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. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Two jurisdictional streams will
be crossed. The streams will be oven cut and the water line will be installed below the bed of the
stream. Once the water line is installed, a temporary stream crossing will be built to allow
' Updated l l/1/2005
Page 3 of 8

equipment to access the rest of the site. See attached Project Description and Sediment and
Erosion Control Practices.
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 floodine.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) (yes/no) (linear feet)

Total Wetland Impact (acres) 0
3. List the total acreage (estimated) of all existing wetlands on the property: 0 (Project Area)
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage. multiply length X width. then divide by 43.560.
Stream Impact Perennial or Average Impact Area of
Number Stream Name Type of Impact Intermittent? Stream Width Length Impact
(indicate on map) Before Im act (linear feet) (acres)

1 IJT' to Walker Temporary Stream perennial 5' 30 0
003
Branch Crossing .
2 Walker Branch Temporary Stream perennial 5' 30 0
003
Crossing .

Total Stream Impact (by length and acreage) 60 0.006
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. dredeine. floodin~_ drainaQe_ hnikheads_ etc_
Open Water Impact
Name of Waterbody Type of Waterbody Area of
Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on map) ocean, etc.) (acres)

Total Open Water Impact (acres) 0
6. List f.
Updated 11/1/2005
le cumulative im act to all Waters of the U.S. resultin from the ro'ec~
Stream Impact (acres): 0.006
Wetland Impact (acres): 0
Page 4 of 8

Open Water Impact (acres): 0
Total Impact to Waters of the U. S. (acres) 0
Total Stream Im act (linear feet): 60
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 USAGE.
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.):
Proposed use or purpose of pond (e.g., livestock watering, u-rigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
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. Both stream impacts will be
temporary. The channel will be stabilized with temporar~nd permanent seeding See attached
Sediment and Erosion Control Practices.
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.
USAGE - 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
Updated 11/U2005
Page 5 of 8

mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
' Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strmgide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
' preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
No mitigation is anticipated for temporarypacts.
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/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A
Amount ofNon-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
' IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federaUstate/local) funds or the use of
f public (federaUstate) 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)?
' Updated 11/1/2005
Page 6 of 8

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 fmalized by the State Clearinghouse? If so, please
' attach a copy of the NEPA or SEPA fmal approval letter. Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
' It is the a licant's or a ent's res onsibilit to determine, delineate and map all impacts to
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required state and local buffers associated with the project. The applicant must also provide
' justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
' 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 1 SA NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
' identify )? Yes ^ No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
' If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multi Tiers.
Zone* Impact Multiplier Required
' (square feet) Mitigation
1 3 (2 for Catawba)
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additiona120 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.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater
controls proposed in order to protect surface waters and wetlands downstream from the property. If
percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed
' impervious level. This project will not result in an increase in impervious area. Proposed storm water
t Updated 1 t/l/2005
Page 7 of 8

1
controls needed to protect surface waters include temporarx construction entrances, check dams, silt
' fence and inlet protection.
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.
' No wastewater will be generated during the completion of the proposed project.
' 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.statc.nc.uslncwetlands. If no, please provide a short narrative description:
The water main will provide better service to existing residents and provide water for future
' residents. Future developments may impacts streams and wetlands, however this water main will
not be the cause of any future development.
' XV. Other Circumstances (Optional):
' It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).

Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
' Updated 11 /1 /2005
Page 8 of 8

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D. SITE LOCATION MAPS
SITE VICINITY MAP
USGS TOPOGRAPHIC MAP
TEMPORARYSTREAMIMPACT #1
TEMPORARYSTREAMIMPACT #2

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~ Kimley-FbmandAssoaates,lnc DWQ Date Project Number Figure
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February 2008 539-07-174 2
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Vicinity Map
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CMUD Project Number
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SCALE
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Figure
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Figure
4
~i

E. REFERENCE MATERIALS
' 1. NC Erosion & Sediment Control Manual; 6.70.1-6.70.3

' Rev. 6/06
Practice Standards and Specifications
Purpose To provide a means for construction vehicles to cross streams or watercourses
without moving sediment into streams, damaging the streambed or channel,
or causing flooding.
Conditions Where Where heavy equipment must be moved from one side of a stream channel
Practice Applies to another, or where light-duty construction vehicles must cross the stream
channel frequently for a short period of time.
P I a n n i n g Careful planning can minimize the need for stream crossings. Try to avoid
Considerations crossing streams. Whenever possible, complete the development separately
on each side and leave a natural buffer zone along the stream. Temporary
stream crossings can be a direct source of water pollution; they may create
flooding and safety hazards; they can be expensive to construct; and they can
cause costly construction delays if washed out.
Both fords and culverts may involve placing fill in an intermittent or periennial
stream or wetland. The need for permits from the U.S. Army Corps of
Engineers or the N. C. Division of Water Quality should be determined when
planning the project.
Select locations for stream crossings where erosion potential is low. Evaluate
stream channel conditions, overflow areas, and surface n-noff control at the
site before choosing the type of crossing. When practical, locate and design
temporary stream crossings to serve as permanent crossings to keep stream
disturbance to a minimum.
Plan stream crossings in advance of need and, when possible, construct them
during dry periods to minimize stream disturbance and reduce cost. Ensure
that all necessary materials and equipment are on-site before any work is
begun Complete construction in an expedient manner, and stabilize the area
immediately.
Often stream crossings are provided in conjunction with operations in a
natural watercourse. Land disturbing activity in connection with construction
in, on, over, or under a lake or natural watercourse shall minimize the extent
and duration of disruption of the stream channel. Where relocation of a
stream forms an essential part of the proposed activity, the relocation shall
minimize unnecessary changes in the stream flow characteristics. Pumping
or diverting stream flow around a work area is often the best way to minimize
the disruption of the stream channel. Any diversions should be stabilized with
adequate geotextile fabric or stone.
After the bypass is completed and stable, the stream may be diverted (Practice
6.15, Riprap). Small stream flows may be diverted around work areas with a
coffer dam and pump instead of construction of a bypass channel.
6.70.1

T
Definition Abridge, ford or temporary structure installed across a stream or watercourse
for short-teen use by construction vehicles or heavy equipment.

Unlike permanent stream crossings, temporary stream crossings may be al-
lowed to overtop during peak storm periods. However, the structure and ap-
proaches should remain stable. Keep any fill needed in flood plains to a mini-
mmn to prevent upstream flooding and reduce erosion potential. Use riprap to
protect locations subject to erosion from overliow.
If permanent utility crossings are planned, stream crossings may be located at
these locations to minimize stream impacts.
Stream crossings are of the three general types: bridges, culverts, and fords.
Consider which method best suits the specific site conditions.
Bridges-Where available materials and designs are adequate to bear the ex-
pected loadings, bridges are preferred for temporary stream crossing.
Bridges usually cause the least disturbance to the stream bed, banks, and sur-
rounding area. They provide the least obstruction to flow and fish migra-
tion. They generally require little maintenance, can be designed to fit most
site conditions, and can be easily removed and materials salvaged. However.
bridges are generally the most expensive to design and construct. Further,
they may offer the greatest safety hazard if not adequately designed, installed,
and maintained, and if washed out, they cause a longer construction delay and
are more costly to repair.
In steep watersheds it is recommended to tie a cable or chain to one corner of
the bridge frame with the other end secured to a large tree or other substantial
object. This will prevent flood flows from carrying the bridge downstream
where it may cause damage to other property.
Culvert crossings-Culverts are the most common stream crossings. In many
cases, they are the least costly to install, can safely support heavy loads, and
are adaptable to most site conditions. Constmction materials are readily avail-
able and can be salvaged. However, the installation and removal of culverts
causes considerable disturbance to the stream and surrounding area. Culverts
also offer the greatest obstruction to flood flows and are subject, therefore,
to blockage and washout. Clean stone should be used for back fill around
culverts
Culverts should be used when vehicles will make repeated trips across the
stream during construction, or track mud into the stream.
Fords-Fords, made of stabilization material such as rock, are often used in
steep areas subject to flash flooding, where normal flow is shallow (less than
3 inches deep) or intermittent. Fords should only be used where crossings are
infrequent. Fords are especially adapted for crossing wide, shallow water-
courses (Figure 6.70a).
6.70.2
Rev. 6/06

Practice .Strrnrlrrrrlc rrnrl.SPecificatinns
When properly iustallcd. fords offer little or no obstruction to Now, can safely
ltiuidle heave loadings, are relatively easy to install and maintain, and in most
cases_ may be left in place at the end of the construction.
Problems associated with fords include the following:
1. Approach sections arc subject to erosion. Generally. do not use fords
where the bank height escceds > feet.
2. Excavation for the installation of the riprap-gravel bottom and filter
material causes major stream disturbance. [n some cases, fords may be
adequately constructed by shallow filling ~rithout excavation.
~. The stabilizing material is subject to vvaslung out during stone flows and
may require replacement.
~. Mud ~md other contaminants are brought directly into the stream on
vehicles unless crossings are limited to no llow conditions.
Stream Channel
Surface Flow
Diversions
Y;~`
~~ . ~. ~:
t''a .+:
Stone approach section
5:1 max, slope on road
Figure 6.70a A well constructed ford offers little obstruction to flow while safely handling heavy loading.
Rey. 6/116 6.70.3
Clean Stone Geotextile
Fabric

E. CONSTRUCTION PLANS AND DETAILS

6
6:
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No. Date By ReWSion
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CHARLOTTE, NORTH CAROLINA
539-0,-I]4
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MiH iXE CONCEPTS AND DESIGNS PRESENTED HEREIN, AS AN INSiRIOEI/i OF SERNCE, IS w1FNDE0 ONLY Fdi THE S°EdFlC PURPDSE ANO GJENT Fd2 WHICH li WAS PREPPNED. REUSE OF AND IMPROPER RELIANCE ON rH15 OOdJNENi WI7HgIT WRITTEN AUIHOAIZADdV AND ADPPTADON
alt. SHALL BE WIMOUi LIABWtt TO KIMLEY-HORN
CHARLOTTE-MECKLENBURG
UTILITIES
ENGINEERING DIVISION
CHARLOTTE, NORTH CAROLINA
~mN°. Fo<N°. EROSfON CONTROL
s~NI<5 DETAILS
PLAN ro sceve
PROFILE
"°`' SOUTHWEST
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NOT i0 SCNE
1EMPORARY STREAM IMPgCT CENEAAL NOTES
I. DURING PIPE INSTALLATION, OIVEAi STREAM ROWS AROUND CONSTRUCDON AREA USING A
CaFER DAM (ecuRE z) AND vuxP.
2 ONCE PIPE INSTALLADON IS COMPLETE, IMMEDIATELY REYIFINiCE DISTURBED AREAS OF
STREAM CHANNEL 1WTH GEOiE%DLE FABRIC COVERED BY STONE (FIGURE G.]OO). 'h4g'. USE OF
FlCURE 6.700 IS TD ILLUSTRATE INSTgLLADON OF RIP-RAP ONLY.
3. IF il£ CONTRACTOR DETERMINES 1HAi AN ACTUAL TEMPORARY AERN. STREAM CROSSING IS
NECESSARY, LOGGING MATS SHALL BE INSTALLED AS THE MEANS TO DO 50 (FlCURE 1)
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