20061267 Ver 1_COMPLETE FILE_20060808

O?O? W AT ?RQG
o ?
Mr. Ralph Maloney
Duke Energy
Little Rock Operations Center
6325 Wilkinson Blvd.
Charlotte, NC 28214
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Elk.
Q
AU G 2 9 2006
Alan W. Klimek, P.E. Director
Division of Water Quality
August 17, 2006
DWQ# 06-1267
Mecklenburg County
DENR - WATER QUALI1 V
WETLANDS AND STOR1ti1 MTER BRANCH
Subject: Norman #117 & #118 Cable Replacement, Lake Norman
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Messrs Smith:
You have our approval, in accordance with the attached conditions and those listed below, to
temporarily impact 0.56 acre of open water (Lake Norman) in order to install the electric cables in Mecklenburg
County, as described in your application received by the Division of Water Quality (DWQ) on August 8, 2006.
After reviewing your application, we have determined that this project is covered by Water Quality General
Certification Number 3374, which can be viewed on our web site at http://h2o.enr.state.nc.us/ncwetlands. The
General Certification allows you to use Nationwide Permit Number 12 once it is issued to you by the U.S. Army
Corps of Engineers. Please note that you should get any other federal, state or local permits before
proceeding with your project, including those required by (but not limited to) Sediment and Erosion Control,
Non-Discharge, and Water Supply Watershed regulations.
The above noted Certification will expire when the associated 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 in writing, and you may be required to send
us a new application for a new certification. If the property is sold, the new owner must be given a copy of the
Certification and approval letter; and is thereby responsible for complying- with all conditions.
In addition to the requirements of the certification, you must also comply with the following conditions:
1. Upon completion of the project, the applicant shall complete and return the enclosed "Certificate of
Completion" form to the 401 /Wetlands Unit of the NC Division of Water Quality.
2. The Catawba buffer shall be restored back to its original grade and elevation upon completion of the
project.
3. Continuing Compliance. The applicants (Duke Energy Carolinas) shall conduct all activities in a manner so
as not to contravene any state water quality standard (including any requirements for compliance with
section 303(d) of the Clean Water Act) and any other appropriate requirements of state and federal law. If
DWQ determines that such standards or laws are not being met (including the failure to sustain a
designated or achieved use) or that state or federal law is being violated, or that further conditions are
necessary to assure compliance, DWQ may reevaluate and modify this certification to include conditions
appropriate to assure compliance with such standards and requirements in accordance with 15 A NCAC
None Carolina
?turally
North Carolina Division of Water Quality 610 East Center Ave., Suite 301 Mooresville, NC 28115 Phone [phone] Customer Service
Internet: ncwaterquality.org FAX [phone]
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
2H.0507(d). Before codifying the certification, DWQ shall notify the applicant and the US Army Corps of
Engineers, provide public notice in accordance with 15A NCAC 2H.0503, and provide opportunity for public
hearing in accordance with 15A NCAC 2H.0504. Any new or revised conditions shall be provided to the
applicant in writing, shall be provided to the United States Army Corps of Engineers for reference in any
permit issued pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404
Permit for the project.
If you do not accept any of the conditions of this certification, 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 that conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its conditions are final
and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act.
If you have any questions, please telephone Mr. Alan Johnson in the Mooresville Regional Office at 704-663-
1699 or Ms. Cyndi Karoly in the Central Office in Raleigh 919-733-9721.
Sincerely,
Gamic ?
for Alan W. Klimek, P.E.
Attachments
cc: Army Corps of Engineers, Asheville
Ian McMillan, Wetlands Unit
MRO, Land Quality
Becky Fox, EPA
Central Files
Triage Check List
Date: 8/10/06 Project Name: Duke Energy: Norman #117 Cable Replace
DWQ#: 06-1267
County: Mecklenburg
Alan Johnson, Mooresville Regional Office
To
60-day Processing Time: 8/08/06 -10/06/06

From: Cyndi Karoly Telephone : [phone]
The file attached is being forwarded to you for your evaluation.
Please call if you need assistance.
? Stream length impacted
? Stream determination
Wetland determination and distance to blue-line surface waters on USFW topo maps
? Minimization/avoidance issues
? Buffer Rules (Meuse, Tar-Pamlico, Catawba, Randleman)
? Pond fill
Mitigation Ratios
? Ditching
? Are the stream and or wetland mitigation sites available and viable?
? Check drawings for accuracy
Is the application consistent with pre-application meetings?
? Cumulative impact concern
?
Comments: As per our discussion regarding revision of the triage and delegation processes,
please review the attached file. Note that you are the first reviewer, so this file will need to be
reviewed for administrative as well as technical details. If you elect to place this project on hold,
please ask the applicant to provide your requested information to both the Central Office in
Raleigh as well as the Asheville Regional Office. As we discussed, this is an experimental, interim
procedure as we slowly transition to electronic applications. Please apprise me of any
complications you encounter, whether related to workload, processing times, or lack of a "second
reviewer" as the triage process in Central had previously provided. Also, if you think of ways to
improve this process, especially so that we can plan for the electronic applications, let me know.
Thanks!

Office Use Only: Form Version March 05
" ? ? 1 2 G 7
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
F ?
1. Processing . '
J J _a
.r
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification..
2. Nationwide, Regional or General Permit Number(s) Requested: NWP No. 12
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: ?
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
P r= /;?,
1. Owner/Applicant Information
Name: Duke Energy Carolinas AUG 0 8 2006
Mailing Address: Little Rock Operations Center
n 'rVin+tit4utiU7Y
6325 Wilkinson Blvd. ?aEnaNps ?nm ST(JR?,lih4t*,?; o?-
Charlotte N. C. 28214
Attn: Ralph J. Maloney - LRO I A
Telephone Number: 704-382-5829 Fax Number: 704-382-5601
E-mail Address: RJMALONEYPDUKE-ENERGY.COM
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name:
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 5 of 12
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted- on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: NORMAN #117 CABLE REPLACEMENT
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 00118934 thru 00118966, 00176224
4. Location
County: Mecklenburg Nearest Town: Davidson
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): See attached sheet entitled
"III. Project Information, Item No. 4, Directions to Site"
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): See attached sheet entitled "III. Project Information,
Item 5, Crossing Coordinates"
6. Property size (acres): N/A
7. Name of nearest receiving body of water: Lake Norman
8. River Basin: Catawba
(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: See attached sheet entitled "III. Project Information,
Item No. 9, Existing Conditions and General Land Use"
Page 6 of 12
10. Describe the overall project in detail, including the type of equipment to be used:
See attached sheet entitled "III. Project Information, Item No. 10, Project Description"
11. Explain the purpose of the proposed work: Replace existing underground electric utility
cables.
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 known jurisdictional determinations and/or permits have been
requested and/or obtained 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 for this project.
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: See attached sheet entitled
"VI. Proposed Impacts to Waters of the United States/Waters of the State, Item No. 1"
Page 7 of 12
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding.
Wetland Impact
Site Number

(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,

herbaceous, bog, etc.) Located within
100-year
Floodplain

es/no Distance to
Nearest
Stream

linear feet Area of
Impact
(acres)
N/A

Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property: N/A
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
Number
indicate on ma
Stream Name
Type of Impact
Perennial or
Intermittent? Average
Stream Width
Before Impact Impact
Length
linear feet Area of
Impact
acres
N/A

Total Stream Impact (by length and acreage)
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, floodin , drainage, bulkheads, etc.
Open Water Impact
Site Number
indicate on ma Name of Waterbody
(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc. Area of
Impact
acres
See site plans Lake Norman Temporary turbulence Lake 0.28

Total Open Water Impact (acres) 0.28
Page 8 of 12
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres):
Wetland Impact (acres):
Open Water Impact (acres): 0.28
Total Impact to Waters of the U.S. (acres)
Total Stream Impact (linear feet):
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the-type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A
Current land use in the vicinity of the pond: N/A
Size of watershed draining to pond: N/A Expected pond surface area: N/A
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
See attached sheet entitled "VII. Impact Justification (Avoidance and Minimization)"
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.
Page 9 of 12
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/newetlands/stnngide.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.
N/A
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):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
Page 10 of 12
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify Catawba)? Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers. Required
Zone* (square Multiplier Mitigation
1 600 3 (2 for Catawba) N/A
2 400 1.5
Total 1,000
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or.0244, or.0260. N/A
Page 11 of 12
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. There is no impervious acreage on either the
northeast or southwest sides of the project. No stormwater controls are included as work will not
be performed if precipitation events are forecast.
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.
The project will not generate wastewater.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ? No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/newetlands. If no, please provide a short narrative description:
It is unlikely that this project would affect future development since the project will not increase
the capacity of existing infrastructure.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
N/A
;7 - el
Applicant/Agent's Signature Date'
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 12 of 12
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LAKE NORMAN
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6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 TRENCHES
(3 PER TRENCH) BELOW LAKEBED
ELEVATED WALKWAY OVER RIP RAp
0 0

EXISTING UNDERGROUND CABLES
TO BE ABANDONED - 50 FT. RIPARIAN BUFFER
6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 DIRECT BORES
(3 PER BORE) BELOW GROUND

4E - TO 20106 BASCOM RIDGE DR.
TO 20107 BASCOM RIDGE DR. >^
TO. BASCOM RIDGE DR.
(CUL DE SAC)
4
Scale: 1 inch = 20 feet
NORMAN #117 CABLE REPLACEMENT
SOUTHWEST SIDE
SITE PLAN
Q

POLE
APPROX LOCATION
EXISTING CONDOMINIUMS
Fr. RIPARIAN BUFFER -

? o
J ?
V ?
EXISTING UNDERGROUND CABLES
TO BE ABANDONED
f` / 2 NEW UTILITY POLES
(1 TO BE INSTALLED
/ 6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 TRENCHES
(3 PER TRENCH) BELOW GROUND
EXISTING UTILITY POLE
AND OVERHEAD CONDUCTORS
TO BE REMOVED
a APPROX 10 FT. RIP RAP TO BE
E • TEMPORARILY REMOVED FOR TRENCHING
Q v j C
6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 TRENCHES
(3 PER TRENCH) BELOW LAKEBED
NORMAN #117 CABLE REPLACEMENT
NORTHEAST SIDE
SITE PLAN
LAKE NORMAN I
Approx Scale: 1 inch = 20 feet
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 4
Directions to Site
Directions to Southwest Side: In Cornelius, N.C., on I-77, at Exit 28
marked "US 21 Lake Norman Cornelius" turn west onto Catawba Ave.
Merge into right-turn lane and proceed to traffic light. Turn right onto
Torrence Chapel Rd. thru retail shopping area, and proceed 0.7 mi.
Turn right onto Schooner Dr. and proceed along divided road. Turn
left onto Crown Lake Dr. and proceed 0.3 mi. Turn left onto Bascom
Ridge Rd. and proceed to cul-de-sac. At end, see vacant property
between 20106 and 20107 Bascom Ridge Rd. Look 20 yds. toward
lake for two pad-mounted switching cabinets. Project starts at
cabinets and continues northeast under lake.
Directions to Northeast Side: In Davidson, N.C., on I-77, at Exit 30
marked "Davidson Davidson College", turn west and proceed to
private residential area. Turn left onto Southwest Dr. and proceed to
cul-de-sac. Turn left onto Torrence Cr. and proceed. See sign on right
marked "Emerald Bay Newport" and proceed straight. See garages on
right. Turn left at sign on left marked "1300 1342 Emerald Bay" and
proceed to end of parking lot. See condominiums on right and hedge
on left. (Watch your step; condo residents use this as a dog poop
area.) Look for last wood utility pole on other side of hedge. Project
continues from lake, past existing pole, and ends approximately 37
feet from pole.
Page 1 of 1 C-117--Directions to Site.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 5
Crossing Coordinates
The existing crossing consists of six underground electric utility cables,
located along a southwest-to-northeast line approximately 1,383 feet
long.
On the southwest side, there is a pair of pad-mounted cabinets,
located at lat 350 29' 52.0", long 800 52' 19.9".
On the northeast side, there is a wood utility pole,
located at lat 350 30" 00.3", long 800 52' 06.6".
(Replacement cables will be installed in approximately the same
location, except the existing wood utility pole will be removed and two
new poles will be installed approximately 37 feet to the northeast,
thereby extending the route to approximately 1,420 feet.)
Page 1 of 1 C-117--Crossing Coordinates.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 9
Existing Conditions and General Land Use
The project will affect three contiguous areas, designated as the
southwest side, the lake, and the northeast side. At present, there are
six underground electric utility cables, located along a line
approximately 1,383 feet long, and approximately four feet
underground that cross the three areas. The existing line will be
extended to approximately 1,420 feet after the two new wood utility
poles, described below, are installed.
The southwest side is a residential subdivision consisting of single-
family houses. The Project's southwest termination point a pair of
pad-mounted switching cabinets located approximately 134 feet from
the southwest shoreline on a privately-owned residential lot that will
not be developed. The southwest riparian buffer consists of
ornamental shrubs and pine straw ground cover and approximately ten
feet of rip rap at the shoreline. There is an elevated walkway that
follows the shoreline, approximately six feet wide directly above the rip
ra p.
The lake is a cove of Lake Norman. The cove is approximately 35 feet
deep (at full pond) and approximately 1,216 feet long between the
northeast and southwest shorelines in the vicinity of the existing
cables. The cove is used for recreational boating purposes; there is no
commercial marine traffic. A floating boat dock (for use by the
condominium owners) and other individual boat slips are located in the
cove.
The northeast side is a fully developed lakeside residential
condominium neighborhood consisting of multi-family buildings,
parking lots, and common areas. The Project's northeast termination
point is two new wood utility poles that will be installed approximately
70 feet from the northeast shoreline, outside the northeast riparian
buffer. An existing pole is located approximately 33 feet from the
northeast shoreline, inside the northeast riparian buffer, near one of
the common areas. The northeast riparian buffer is common area and
consists of trees, bushes, etc. and approximately ten feet of rip rap at
the shoreline.
Page 1 of 1 C-117--Existing Conditions and General Land Use.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 10
Project Description
Overview: This Project is designed to replace six existing underground
electric utility cables along an approximate 1,383 foot route. These
cables will be replaced with new cables, and the old cables will be
abandoned in-place. The Project is part of a utility-wide underground
cable upgrade initiative that will affect two coves of Lake Norman.
Summary: Between the southwest termination point and the
northeast termination point, a series of two horizontal bores, two
submarine trenches, and two dry-land trenches will be made,
effectively creating two, physically separated runs. Each run will
contain three direct-buried electric cables. (Typically, two separate
runs are used to provide redundant circuits so that outage time is
minimized in the event of a cable failure.)
Detailed Description:
On the southwest side, the termination point is a pair of pad-mounted
switching cabinets located approximately 134 feet from the shoreline
on an undeveloped lot. These cabinets will be replaced with a larger
single cabinet. Between the cabinet and the southwest shoreline, two
horizontal bores will be made with a directional boring machine placed
outside the riparian buffer. Neither the boring machine nor its
ancillary equipment (e.g., holding tanks, vacuum pumps, etc.) will be
parked in buffer. The bores will be made one at a time in two
successive passes, approximately five apart and approximately four
feet deep. Bores, instead of trenches, will be made to avoid damage
to the southwest riparian buffer and minimize objections from nearby
property owners. The bores will terminate in the lake, in
approximately four feet of water. No boring compounds (e.g.,
bentonite) will be used, and lake water will be the only boring lubricant
used. A poly-ethylene conduit will then be pulled through each bore.
The conduits will be marked with temporary buoys attached to the
submerged ends.
In the lake, between the southwest shoreline and the northeast
shoreline , in the vicinity of the existing cables, two trenches will be
Page 1 of 3 C-117--Project Description.doc 7/24/2006
cut by submersible sled, equipped with water-jet nozzles. The
trenches will be cut one at a time in two successive passes,
approximately six feet apart, and approximately six feet deep by one
foot wide. Near the southwest shoreline, the sled will be placed over
one of the two plastic conduits and the ends of three electric cables
will be spooled off three reels (from a barge described later) and
pulled through the conduits to the termination point. The sled will
then ride along the bottom of the lake, from the southwest shoreline
to the northeast shoreline, as the water jets cut a trench into the
lakebed. As the water jets cut the trench, the sled will continue to
funnel the remainder of the three electric cables into the trench. Also
in the same pass, the sled will pull a device to replace originally
excavated lakebed material back into the trench. This operation will
continue to the northeast shoreline. A surface barge containing pumps
for the water jets and three cable reels will travel ahead of the
submerged sled. To minimize surface turbulence and to provide
containment for lakebed particulates, curtains will surround the sled's
water-jets as trenching continues across the lake. Two successive
passes will be made to complete the parallel trench installation across
the lakebed.
On the northeast side, the termination point is two wood utility poles
that will be installed approximately 70 feet from the northeast
shoreline. This will extend the route to approximately 1,420 feet. An
existing pole, located approximately 33 feet from the northeast
shoreline, will be removed. Between the new poles and the shoreline,
two trenches will be cut with a ditch witch-type trencher. The trenches
will be cut one at a time in two successive passes, approximately six
feet apart, and approximately six feet deep by one foot wide. At the
shoreline, the rip rap will be temporarily removed, the dry-land
trenches will be joined to the lakebed trenches, and the electric cable
installation will continue to the new poles. The dry-land trenches will
then be closed and tamped with originally excavated material and the
rip rap will be replaced. Each dry-land trench will be cut in dry soil
conditions (except at the shoreline) to avoid damage to the buffer
from tires and outriggers, and will be started and finished on the same
day to avoid runoff into the lake should it rain.
No permanent structures will be erected (one will actually be
removed), no liquids are expected to be discharged either in the
riparian buffers or into the lake, and no construction materials will be
left on-site. It will not be necessary to clear brush or cut trees to gain
access to either of the riparian buffers.
Page 2 of 3 C-117--Project Description.doc 7/24/2006
Duke Power (now Duke Energy) completed an almost identical project
on Lake Keowee in South Carolina. In its December 4, 2003 letter,
The U. S. Army Corps of Engineers in Charleston, S. C. determined
that the project met the terms and conditions of the Department of the
Army Nationwide Permit #12, as documented in USACE File No. SAC-
12-2003-1657-D.
Page 3 of 3 C-117--Project Description.doc 7124/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
VI. Proposed Impact to Waters of the United States/
Waters of the State, Item No.1
At present, there are six underground electric utility cables along an
approximate 1,216 foot route, buried approximately four feet under
the lakebed. These cables will be replaced with new cables and the
existing cables will be abandoned in-place.
The lake will be impacted as follows: Two trenches will be cut one at a
time in two successive passes, approximately six feet apart, and
approximately six feet deep by one foot wide. During trenching
operations, a submerged sled containing a water-jet trencher will use
high pressure lake water as the cutting agent. Lakebed materials
(clay, silt, etc.) will be released into the water in the vicinity of the
nozzles, but will be captured by curtains and confined to the space
immediately surrounding the trencher. As water flows through the
curtains, its velocity will be reduced, thereby reducing surface
turbidity. The curtains are made of an engineered geotextile
polypropylene woven fabric that allows water to flow through it at a
rate of 40 gallons per minute per square foot, but blocks the flow of
particles greater than 0.425 millimeters, thereby emulating a No. 40
sieve. The trench will then be covered by the same submerged sled
using originally excavated lakebed material.
The impact will be temporary. No permanent structures will be erected
no liquids are expected to be discharged into the lake, and no
construction materials will be left on-site.
Page 1 of 1 C-117--Proposed Impact to Waters.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
VII. Impact Justification (Avoidance and Minimization)
The six existing underground electric utility cables were originally
installed over 25 years ago. In addition, they are of a "drainwire"-type
design that has a history of premature failure. The cables are part of
the electric utility primary voltage infrastructure that provides service
to approximately 300 customers located in the Lake Norman area of
Davidson and Cornelius, N. C. These cables must be replaced before
they fail and cause an extended outage.
The following temporary impacts are expected:
In the southwest riparian buffer, two horizontal bores will be made
approximately four feet underground, thereby affecting a corridor
located 10 feet parallel with the shoreline by 50 feet perpendicular to
the shoreline. Six electric cables and two poly-ethylene conduits will
be the only permanent additions to the buffer; otherwise, the
southwest riparian buffer will not be impacted.
In the lake, two trenches will be excavated and covered, thereby
affecting a corridor approximately 1,216 feet long by approximately
ten feet wide. Six electric cables will be the only permanent additions
to the lakebed.
In the northeast riparian buffer, an existing wood utility pole will be
removed. Two parallel trenches will be excavated, covered, and
tamped in the buffer, thereby affecting a corridor located 20 feet
parallel with the shoreline by 50 feet perpendicular to thQ shoreline.
Six electric cables (no conduit) will be the only permanent additions to
the buffer. The northeast riparian buffer will be returned to its original
condition.
In all three areas, no permanent structures will be erected, no liquids
are expected to be discharged, no off-site fill material or lubricating
compounds will be introduced, and no construction materials will be
left on-site. It will not be necessary to clear brush or cut trees to gain
access to either of the riparian buffers.
Page 1 of 2 C-117--Impact Justification.doc 7/24/2006
Avoidance
The Project cannot be avoided as installing alternative overhead
facilities (i.e., poles, crossarms, etc.) along a different route would be
prohibitively expensive due to routing and right-of-way constraints.
Minimization
On the southwest side, within the 50 foot riparian buffer, the bores will
be underground. To minimize disturbance to the buffer, neither the
boring machine nor its ancillary equipment (e.g., holding tanks,
vacuum pumps, etc.) will be parked in buffer. No boring compounds
will be used. The only lubricant will be lake water.
In the lake, to minimize surface turbulence and particulate
contamination, curtains will surround the sled's water-jets (described
in III. Project Information, Item No. 10,.Project Description) as
trenching continues across the lake. As water flows through the
curtains, its velocity will be reduced, thereby reducing surface
turbidity. The curtains are made of an engineered geotextile
polypropylene woven fabric that allows water to flow through it at a
rate of 40 gallons per minute per square foot, but blocks the flow of
particles greater than 0.425 millimeters, thereby emulating a No. 40
sieve. Experience with this curtain design on other similar projects
(e.g., at Lake Keowee in South Carolina, USACE File No. SAC-12-2003-
1657-D) demonstrated that it is an effective method to minimize
disturbance to the lake.
On the northeast side, within the 50 foot riparian buffer, removing the
wood utility pole will minimize the presence of man-made material in
the buffer. In addition, the pole will be removed during dry soil
conditions to minimize damage from vehicles' wheels and outriggers.
Each dry-land trench will be cut in dry soil conditions (except at the
shoreline), and will be started and finished on the same day to avoid
runoff into the lake should it rain. Erosion control fences will be
installed around the entire perimeter of the work zone and will extend
into the lake to further minimize disturbance to the buffer or the lake.
Construction will be scheduled for October-November to minimize
disturbance to marine life.
Page 2 of 2 C-117--Impact Justification.doc 7/24/2006
4
Office Use Only: Form Version March 05
`?? ? 1 2 G 7
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing

1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ? Express 401 Water Quality Certification..
2. Nationwide, Regional or General Permit Number(s) Requested: NWP No. 12
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
D r=1
0 g@wwiN on
1. Owner/Applicant Information
Name: Duke Energy Carolinas AUG 0 8 2006
Mailing Address: Little Rock Operations Center bc-n, ?7.a y?^" Y
6325 Wilkinson Blvd. MT6ki N0s70RA1Wr1TEF2BR^NC.r;
Charlotte N. C. 28214
Attn: Ralph J. Maloney - LRO I A
Telephone Number: 704-382-5829 Fax Number: 704-382-5601
E-mail Address: RJMALONEY(@DUKE-ENERGY.COM
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name:
Company Affiliation:
Mailing Address:_
Telephone Number: Fax Number:
E-mail Address:
Page 5 of 12
.i"
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets_ no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: NORMAN #117 CABLE REPLACEMENT
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 00118934 thru 00118966, 00176224
4. Location
County: Mecklenburg Nearest Town: Davidson
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): See attached sheet entitled
"III. Project Information, Item No. 4, Directions to Site"
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): See attached sheet entitled "III. Project Information,
Item 5, Crossing Coordinates"
6. Property size (acres): N/A
7. Name of nearest receiving body of water: Lake Norman
8. River Basin: Catawba
(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/m4ps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: See attached sheet entitled "III. Project Information,
Item No. 9, Existing Conditions and General Land Use"
Page 6 of 12

10. Describe the overall project in detail, including the type of equipment to be used:
See attached sheet entitled "III. Project Information, Item No. 10, Project Description"
11. Explain the purpose of the proposed work: Replace existing underground electric utility
cables.
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 known jurisdictional determinations and/or permits have been
requested and/or obtained 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 for this project.
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: See attached sheet entitled
"VI. Proposed Impacts to Waters of the United States/Waters of the State, Item No. 1"
Page 7 of 12

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,
se aratel list impacts due to both structure and floodin .
Wetland Impact
Site Number

(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,

herbaceous, bog, etc.) Located within
100-year
Floodplain

(yes/no) Distance to
Nearest
Stream

linear feet Area of
Impact
(acres)
N/A

Total Wetland Impact (acres)
3. List the total acreage (estimated) of all existing wetlands on the property: N/A
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
Number
indicate on ma
Stream Name
Type of Impact Perennial or
Intermittent? Average
Stream Width
Before Impact Impact
Length
linear feet Area of
Impact
acres
NIA

Total Stream Impact (by length and acreage)
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact
Site Number
(indicate on ma Name of Waterbody

(if applicable)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc. Area of
Impact
acres
See site plans Lake Norman Temporary turbulence Lake 0.28

Total Open Water Impact (acres) 0.28
Page 8 of 12
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Impact (acres):
Wetland Impact (acres):
Open Water Impact (acres): 0.28
Total Impact to Waters of the U.S. (acres)
Total Stream Impact (linear feet):
7. Isolated Waters
Do any isolated waters exist on the property? ? Yes ® No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
N/A
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A
Current land use in the vicinity of the pond: N/A
Size of watershed draining to pond: N/A Expected pond surface area: N/A
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
See attached sheet entitled "VII. Impact Justification (Avoidance and Minimization)"
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.
Page 9 of 12
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/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.
N/A
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):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
Page 10 of 12
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ? No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify Catawba ? Yes ® No ?
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* (s p act
feet) Multiplier Miti Required
gation
1 600 3 (2 for Catawba) N/A
2 400 1.5
Total 1,000
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or.0244, or.0260. N/A
Page 11 of 12
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. There is no impervious acreage on either the
northeast or southwest sides of the project. No stormwater controls are included as work will not
be performed if precipitation events are forecast.
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.
The project will not generate wastewater.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 211.0500) or any Buffer Rules?
Yes ? No N
Is this an after-the-fact permit application? Yes ? No N
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 N
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
It is unlikely that this project would affect future development since the project will not increase
the capacity of existing infrastructure.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
N/A
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 12 of 12
NORMAN # 117 CABLE REPLY
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LAKE NORMAN
ELEVATED WALKWAY OVER RIP RAP
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6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 TRENCHES
(3 PER TRENCH) BELOW LAKEBED
0
EXISTING UNDERGROUND CABLES
TO BE ABANDONED 50 ?. RIPARIAN BUFFER
Q
6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 DIRECT BORES
(3 PER BORE) BELOW GROUND

?- TO 20106 BASCOM RIDGE DR.
TO 20107 BASCOM RIDGE DR. - >
TO. BASCOM RIDGE DR.
(CUL DE SAC)
NORMAN #117 CABLE REPLACEMENT
SOUTHWEST SIDE
SITE PLAN
Approx Scale: 1 inch = 20 feet
4

POLE
APPROX LOCATION
EXISTING CONDOMINIUMS
FT. RIPARIAN BUFFER -
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41
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EXISTING UNDERGROUND CABLES
TO BE ABANDONED
Y/6 2 NEW UTILITY POLES
TO BE INSTALLED
EW UNDERGROUND CABLES
BE INSTALLED IN 2 TRENCHES
PER TRENCH) BELOW GROUND
EXISTING UTILITY POLE
AND OVERHEAD CONDUCTORS
TO BE REMOVED
a APPROX 10 FT. RIP RAP TO BE
E ' TEMPORARILY REMOVED FOR TRENCHING
T c w ` c,
6 NEW UNDERGROUND CABLES
TO BE INSTALLED IN 2 TRENCHES
(3 PER TRENCH) BELOW LAKEBED
LAKE NORMAN
NORMAN #117 CABLE REPLACEMENT
NORTHEAST SIDE
SITE PLAN
Approx Scale: 1 inch = 20 feet
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 4
Directions to Site
Directions to Southwest Side: In Cornelius, N.C., on I-77, at Exit 28
marked "US 21 Lake Norman Cornelius" turn west onto Catawba Ave.
Merge into right-turn lane and proceed to traffic light. Turn right onto
Torrence Chapel Rd. thru retail shopping area, and proceed 0.7 mi.
Turn right onto Schooner Dr. and proceed along divided road. Turn
left onto Crown Lake Dr. and proceed 0.3 mi. Turn left onto Bascom
Ridge Rd. and proceed to cul-de-sac. At end, see vacant property
between 20106 and 20107 Bascom Ridge Rd. Look 20 yds. toward
lake for two pad-mounted switching cabinets. Project starts at
cabinets and continues northeast under lake.
Directions to Northeast Side: In Davidson, N.C., on I-77, at Exit 30
marked "Davidson Davidson College", turn west and proceed to
private residential area. Turn left onto Southwest Dr. and proceed to
cul-de-sac. Turn left onto Torrence Cr. and proceed. See sign on right
marked "Emerald Bay Newport" and proceed straight. See garages on
right. Turn left at sign on left marked "1300 1342 Emerald Bay" and
proceed to end of parking lot. See condominiums on right and hedge
on left. (Watch your step; condo residents use this as a dog poop
area.) Look for last wood utility pole on other side of hedge. Project
continues from lake, past existing pole, and ends approximately 37
feet from pole.
Page 1 of 1 C-117--Directions to Site.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 5
Crossing Coordinates
The existing crossing consists of six underground electric utility cables,
located along a southwest-to-northeast line approximately 1,383 feet
long.
On the southwest side, there is a pair of pad-mounted cabinets,
located at lat 350 29' 52.0", long 801 52' 19.9".
On the northeast side, there is a wood utility pole,
located at lat 350 30" 00.3", long 800 52' 06.6".
(Replacement cables will be installed in approximately the same
location, except the existing wood utility pole will be removed and two
new poles will be installed approximately 37 feet to the northeast,
thereby extending the route to approximately 1,420 feet.)
Page 1 of 1 C-117--Crossing Coordinates.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 9
Existing Conditions and General Land Use
The project will affect three contiguous areas, designated as the
southwest side, the lake, and the northeast side. At present, there are
six underground electric utility cables, located along a line
approximately 1,383 feet long, and approximately four feet
underground that cross the three areas. The existing line will be
extended to approximately 1,420 feet after the two new wood utility
poles, described below, are installed.
The southwest side is a residential subdivision consisting of single-
family houses. The Project's southwest termination point a pair of
pad-mounted switching cabinets located approximately 134 feet from
the southwest shoreline on a privately-owned residential lot that will
not be developed. The southwest riparian buffer consists of
ornamental shrubs and pine straw ground cover and approximately ten
feet of rip rap at the shoreline. There is an elevated walkway that
follows the shoreline, approximately six feet wide directly above the rip
ra p.
The lake is a cove of Lake Norman. The cove is approximately 35 feet
deep (at full pond) and approximately 1,216 feet long between the
northeast and southwest shorelines in the vicinity of the existing
cables. The cove is used for recreational boating purposes; there is no
commercial marine traffic. A floating boat dock (for use by the
condominium owners) and other individual boat slips are located in the
cove.
The northeast side is a fully developed lakeside residential
condominium neighborhood consisting of multi-family buildings,
parking lots, and common areas. The Project's northeast termination
point is two new wood utility poles that will be installed approximately
70 feet from the northeast shoreline, outside the northeast riparian
buffer. An existing pole is located approximately 33 feet from the
northeast shoreline, inside the northeast riparian buffer, near one of
the common areas. The northeast riparian buffer is common area and
consists of trees, bushes, etc. and approximately ten feet of rip rap at
the shoreline.
Page 1 of 1 C-117--Existing Conditions and General Land Use.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
III. Project Information, Item No. 10
Project Description
Overview: This Project is designed to replace six existing underground
electric utility cables along an approximate 1,383 foot route. These
cables will be replaced with new cables, and the old cables will be
abandoned in-place. The Project is part of a utility-wide underground
cable upgrade initiative that will affect two coves of Lake Norman.
Summary: Between the southwest termination point and the
northeast termination point, a series of two horizontal bores, two
submarine trenches, and two dry-land trenches will be made,
effectively creating two, physically separated runs. Each run will
contain three direct-buried electric cables. (Typically, two separate
runs are used to provide redundant circuits so that outage time is
minimized in the event of a cable failure.)
Detailed Description:
On the southwest side, the termination point is a pair of pad-mounted
switching cabinets located approximately 134 feet from the shoreline
on an undeveloped lot. These cabinets will be replaced with a larger
single cabinet. Between the cabinet and the southwest shoreline, two
horizontal bores will be made with a directional boring machine placed
outside the riparian buffer. Neither the boring machine nor its
ancillary equipment (e.g., holding tanks, vacuum pumps, etc.) will be
parked in buffer. The bores will be made one at a time in two
successive passes, approximately five apart and approximately four
feet deep. Bores, instead of trenches, will be made to avoid damage
to the southwest riparian buffer and minimize objections from nearby
property owners. The bores will terminate in the lake, in
approximately four feet of water. No boring compounds (e.g.,
bentonite) will be used, and lake water will be the only boring lubricant
used. A poly-ethylene conduit will then be pulled through each bore.
The conduits will be marked with temporary buoys attached to the
submerged ends.
In the lake, between the southwest shoreline and the northeast
shoreline , in the vicinity of the existing cables, two trenches will be
Page 1 of 3 C-117--Project Description.doc 7/24/2006
cut by submersible sled, equipped with water-jet nozzles. The
trenches will be cut one at a time in two successive passes,
approximately six feet apart, and approximately six feet deep by one
foot wide. Near the southwest shoreline, the sled will be placed over
one of the two plastic conduits and the ends of three electric cables
will be spooled off three reels (from a barge described later) and
pulled through the conduits to the termination point. The sled will
then ride along the bottom of the lake, from the southwest shoreline
to the northeast shoreline, as the water jets cut a trench into the
lakebed. As the water jets cut the trench, the sled will continue to
funnel the remainder of the three electric cables into the trench. Also
in the same pass, the sled will pull a device to replace originally
excavated lakebed material back into the trench. This operation will
continue to the northeast shoreline. A surface barge containing pumps
for the water jets and three cable reels will travel ahead of the
submerged sled. To minimize surface turbulence and to provide
containment for lakebed particulates, curtains will surround the sled's
water-jets as trenching continues across the lake. Two successive
passes will be made to complete the parallel trench installation across
the lakebed.
On the northeast side, the termination point is two wood utility poles
that will be installed approximately 70 feet from the northeast
shoreline. This will extend the route to approximately 1,420 feet. An
existing pole, located approximately 33 feet from the northeast
shoreline, will be removed. Between the new poles and the shoreline,
two trenches will be cut with a ditch witch-type trencher. The trenches
will be cut one at a time in two successive passes, approximately six
feet apart, and approximately six feet deep by one foot wide. At the
shoreline, the rip rap will be temporarily removed, the dry-land
trenches will be joined to the lakebed trenches, and the electric cable
installation will continue to the new poles. The dry-land trenches will
then be closed and tamped with originally excavated material and the
rip rap will be replaced. Each dry-land trench will be cut in dry soil
conditions (except at the shoreline) to avoid damage to the buffer
from tires and outriggers, and will be started and finished on the same
day to avoid runoff into the lake should it rain.
No permanent structures will be erected (one will actually be
removed), no liquids are expected to be discharged either in the
riparian buffers or into the lake, and no construction materials will be
left on-site. It will not be necessary to clear brush or cut trees to gain
access to either of the riparian buffers.
Page 2 of 3 C-117--Project Description.doc 7/24/2006
Duke Power (now Duke Energy) completed an almost identical project
on Lake Keowee in South Carolina. In its December 4, 2003 letter,
The U. S. Army Corps of Engineers in Charleston, S. C. determined
that the project met the terms and conditions of the Department of the
Army Nationwide Permit #12, as documented in USACE File No. SAC-
12-2003-1657-D.
Page 3 of 3 C-117--Project Description.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
VI. Proposed Impact to Waters of the United States/
Waters of the State, Item No.1
At present, there are six underground electric utility cables along an
approximate 1,216 foot route, buried approximately four feet under
the lakebed. These cables will be replaced with new cables and the
existing cables will be abandoned in-place.
The lake will be impacted as follows: Two trenches will be cut one at a
time in two successive passes, approximately six feet apart, and
approximately six feet deep by one foot wide. During trenching
operations, a submerged sled containing a water-jet trencher will use
high pressure lake water as the cutting agent. Lakebed materials
(clay, silt, etc.) will be released into the water in the vicinity of the
nozzles, but will be captured by curtains and confined to the space
immediately surrounding the trencher. As water flows through the
curtains, its velocity will be reduced, thereby reducing surface
turbidity. The curtains are made of an engineered geotextile
polypropylene woven fabric that allows water to flow through it at a
rate of 40 gallons per minute per square foot, but blocks the flow of
particles greater than 0.425 millimeters, thereby emulating a No. 40
sieve. The trench will then be covered by the same submerged sled
using originally excavated lakebed material.
The impact will be temporary. No permanent structures will be erected
no liquids are expected to be discharged into the lake, and no
construction materials will be left on-site.
Page 1 of 1 C-117--Proposed Impact to Waters.doc 7/24/2006
NORMAN #117 CABLE REPLACEMENT
July 21, 2006
VII. Impact Justification (Avoidance and Minimization)
The six existing underground electric utility cables were originally
installed over 25 years ago. In addition, they are of a "drainwire"-type
design that has a history of premature failure. The cables are part of
the electric utility primary voltage infrastructure that provides service
to approximately 300 customers located in the Lake Norman area of
Davidson and Cornelius, N. C. These cables must be replaced before
they fail and cause an extended outage.
The following temporary impacts are expected:
In the southwest riparian buffer, two horizontal bores will be made
approximately four feet underground, thereby affecting a corridor
located 10 feet parallel with the shoreline by 50 feet perpendicular to
the shoreline. Six electric cables and two poly-ethylene conduits will
be the only permanent additions to the buffer; otherwise, the
southwest riparian buffer will not be impacted.
In the lake, two trenches will be excavated and covered, thereby
affecting a corridor approximately 1,216 feet long by approximately
ten feet wide. Six electric cables will be the only permanent additions
to the lakebed.
In the northeast riparian buffer, an existing wood utility pole will be
removed. Two parallel trenches will be excavated, covered, and
tamped in the buffer, thereby affecting a corridor located 20 feet
parallel with the shoreline by 50 feet perpendicular to the shoreline.
Six electric cables (no conduit) will be the only permanent additions to
the buffer. The northeast riparian buffer will be returned to its original
condition.
In all three areas, no permanent structures will be erected, no liquids
are expected to be discharged, no off-site fill material or lubricating
compounds will be introduced, and no construction materials will be
left on-site. It will not be necessary to clear brush or cut trees to gain
access to either of the riparian buffers.
Page 1 of 2 C-117--Impact Justification.doc 7/24/2006
Avoidance
The Project cannot be avoided as installing alternative overhead
facilities (i.e., poles, crossarms, etc.) along a different route would be
prohibitively expensive due to routing and right-of-way constraints.
Minimization
On the southwest side, within the 50 foot riparian buffer, the bores will
be underground. To minimize disturbance to the buffer, neither the
boring machine nor its ancillary equipment (e.g., holding tanks,
vacuum pumps, etc.) will be parked in buffer. No boring compounds
will be used. The only lubricant will be lake water.
In the lake, to minimize surface turbulence and particulate
contamination, curtains will surround the sled's water-jets (described
in III. Project Information, Item No. 10,.Project Description) as
trenching continues across the lake. As water flows through the
curtains, its velocity will be reduced, thereby reducing surface
turbidity. The curtains are made of an engineered geotextile
polypropylene woven fabric that allows water to flow through it at a
rate of 40 gallons per minute per square foot, but blocks the flow of
particles greater than 0.425 millimeters, thereby emulating a No. 40
sieve. Experience with this curtain design on other similar projects
(e.g., at Lake Keowee in South Carolina, USACE File No. SAC-12-2003-
1657-D) demonstrated that it is an effective method to minimize
disturbance to the lake.
On the northeast side, within the 50 foot riparian buffer, removing the
wood utility pole will minimize the presence of man-made material in
the buffer. In addition, the pole will be removed during dry soil
conditions to minimize damage from vehicles' wheels and outriggers.
Each dry-land trench will be cut in dry soil conditions (except at the
shoreline), and will be started and finished on the same day to avoid
runoff into the lake should it rain. Erosion control fences will be
installed around the entire perimeter of the work zone and will extend
into the lake to further minimize disturbance to the buffer or the lake.
Construction will be scheduled for October-November to minimize
disturbance to marine life.
Page 2 of 2 C-117--Impact ]ustification.doc 7/24/2006