20150266 Ver 2_Revised 401 Application_20180110

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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form — Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1 a.
Type(s) of approval sought from the Corps:
❑X Section 404 Permit ❑ Section 10 Permit
1 b.
Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑X Yes ❑ No
1 d.
Type(s) of approval sought from the DWQ (check all that apply):
❑X 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑X No
For the record only for Corps Permit:
❑ Yes ❑X No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1 g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes ❑X No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ❑X No
2.
Project Information
2a.
Name of project:
Mountain Electric Cooperative's Sugar Mountain 69kV Transmission Line
2b.
County:
Avery
2c.
Nearest municipality / town:
Sugar Mountain/ Banner Elk
2d.
Subdivision name:
Norwood Hollow (Substation Site)
2e.
NCDOT only, T.I.P. or state project no:
3.
Owner Information
3a.
Name(s) on Recorded Deed:
Mountain Electric Cooperative
3b.
Deed Book and Page No.
Rights -of -ways acquired, please see attached file of map and deeds
3c.
Responsible Party (for LLC if
applicable):
Joseph A. Thasker III
3d.
Street address:
604 South Church Street
3e.
City, state, zip:
Mountain City, TN 37683
3f.
Telephone no.:
423-727-1810
3g.
Fax no.:
3h.
Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent ❑X Other, specify: Construction/design firm
4b.
Name:
Nathan Bass
4c.
Business name
(if applicable):
UC Synergetic, LLC
4d.
Street address:
123 North White Street
4e.
City, state, zip:
Fort Mill, SC 29715
4f.
Telephone no.:
803-835-7929
4g.
Fax no.:
803-8357825
4h.
Email address:
[e-mail]
5.
Agent/Consultant Information (if applicable)
5a.
Name:
Carson Dellinger (Environmental Consultant)
5b.
Business name
(if applicable):
Environmental Resources of the Carolinas, Inc
5c.
Street address:
72 Brownwood Ave.
5d.
City, state, zip:
Asheville, NC 28806
5e.
Telephone no.:
828-450-0161
5f.
Fax no.:
5g.
Email address:
[e-mail]
Page 2 of 10

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
(Sugar Mt Substation) 185708893649
1 b.
Site coordinates (in decimal degrees):
Latitude: Longitude:
1 c.
Property size:
acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Elk River
2b.
Water Quality Classification of nearest receiving water:
C; Tr
2c.
River basin:
Watauga
3.
Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
Conditions on the site vary from forested, to maintained early successional, to residential and commercial development, to existing roadways.
3b.
List the total estimated acreage of all existing wetlands on the property: 0.07
3c.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 1,902
3d. Explain the purpose of the proposed project:
To provide adequate electric power supply to the population of Sugar Mountain. Specifically, to power a future electric substation in Sugar Mountain.
3e. Describe the overall project in detail, including the type of equipment to be used:
A 100' right-of-way will be cleared for the length of the transmission line. Non -mechanized clearing will be utilized in stream buffers.
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (includingall prior phases in the past?
❑X Yes ❑ No ❑ Unknown
Comments:
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
❑X Preliminary ❑ Final
4c.
If yes, who delineated the jurisdictional areas?
Name (if known): Carson Dellinger
Agency/Consultant Company: EROC, Inc.
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
concurrent with this notification
5.
Project History
5a.
Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑x Yes ❑ No ❑ Unknown
5b. If yes, explain in detail according to "help file" instructions.
A Nationwide 12 Permit was acquired to fill the Sugar Mountain Substation site.
6.
Future Project Plans
6a.
Is this a phased project?
❑X Yes ❑ No
6b. If yes, explain.
The proposed Sugar Mountain Substation site was previously permitted and graded. USACE Action ID: SAW -2010-01340. Permit attached.
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑X Wetlands ❑X Streams —tributaries ❑X Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes/No
-
W2 -
Choose one
Choose one
Yes/No
W3 -
Choose one
Choose one
Yes/No
W4 -
Choose one
Choose one
Yes/No
W5 -
Choose one
Choose one
Yes/No
W6 -
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
2h. Comments:
Though a wetland was delineated on the project site, it currently occurs as an early successional wetland. It will be maintained as an early
successional wetland. No fill will be placed in the wetland.
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Culvert
S3 (unnamed trib)
PER
Corps
4
30
S2 P
Culvert
S9 (unnamed trib)
PER
Corps
4
40
S3 P
Culvert
S12(unnamed trib)
PER
Corps
4
40
S4 P
Culvert
S14 (unnamed trib)
PER
Corps
4
40
S5 P
Culvert
S15 (unnamed trib)
INT
Corps
3
50
S6 -
Choose one
3h. Total stream and tributary impacts
190
3i. Comments:
The listed 'length of impacts" are the length of the proposed culverts
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indivi ually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01
Choose one
Choose
O2 -
Choose one
Choose
03 -
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
4g. Comments:
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary T
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
B1
Yes/No
B2 -
Yes/No
B3 -
Yes/No
B4 -
Yes/No
B5 -
Yes/No
B6 -
Yes/No
6h. Total Buffer Impacts:
6i. Comments:
Page 5 of 10

D.
Impact Justification and Mitigation
1.
Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Culverts have been avoided where possible. Temporary spanning bridges are used where possible.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Designs were modified to avoid placing structures in waters of the US. Crossings over waters of the US attempted, as much as possible, to cross at
perpendicular angles. Stream buffers (25' on each side of streams) will be maintained by non -mechanized clearing. Existing roadways were utilized
for access.
2.
Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a.
Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ❑X No
2b.
If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c.
If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
El Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3.
Complete if Using a Mitigation Bank
3a.
Name of Mitigation Bank:
3b.
Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c.
Comments:
4.
Complete if Making a Payment to In -lieu Fee Program
4a.
Approval letter from in -lieu fee program is attached.
❑ Yes
4b.
Stream mitigation requested:
linear feet
4c.
If using stream mitigation, stream temperature:
Choose one
4d.
Buffer mitigation requested (DWQ only):
square feet
4e.
Riparian wetland mitigation requested:
acres
4f.
Non -riparian wetland mitigation requested:
acres
4g.
Coastal (tidal) wetland mitigation requested:
acres
4h.
Comments:
5.
Complete if Using a Permittee Responsible Mitigation Plan
5a.
If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes ❑ No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1 a.
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes X❑ No
within one of the NC Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
2b.
Does this project require a Stormwater Management Plan?
❑ Yes ❑X No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
No
state stormwater program in the area. Access roads will be dirt or gravel depending on necessity of material, so imperviousness is indeterminable
2d.
If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e.
Who will be responsible for the review of the Stormwater Management Plan?
3.
Certified Local Government Stormwater Review
3a.
In which localgovernment's jurisdiction is thisproject?
❑ Phase II
❑ NSW
3b.
Which of the following locally-implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
4.
DWQ Stormwater Program Review
❑Coastal counties
❑ HQW
4a.
Which of the following state-implemented stormwater management programs apply
❑ORW
(check all that apply):
❑Session Law 2006-246
❑X Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
5.
DWQ 401 Unit Stormwater Review
5a.
Does the Stormwater Management Plan meet the appropriate requirements?
❑X Yes ❑ No
5b.
Have all of the 401 Unit submittal requirements been met?
❑X Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
1 a.
Does the project involve an expenditure of public (federal/state/local) funds or the
Yes ❑ No
use of public (federal/state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑X Yes ❑ No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes ❑X No
letter.) Project was reviewed by the Rural Utilities Commission of the USDA
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
E] Yes ❑X No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b.
Is this an after -the -fact permit application?
El Yes ❑X No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3.
Cumulative Impacts (DWQ Requirement)
3a.
Will this project (based on past and reasonably anticipated future impacts) result in
❑Yes ❑X No
additional development, which could impact nearby downstream water quality?
3b.
If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4.
Sewage Disposal (DWQ Requirement)
4a.
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
waste water will be generated by the project
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
❑X Yes ❑ No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑X Yes ❑ No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
US Fish and Wildlife, NC Wildlife Resources Commission, NC Heritage Database, On-site investigation
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑X Yes ❑ No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
US Fish and Wildlife, NC Wildlife Resources Commission, NCDWQ
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑X Yes ❑ No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
ON -site investigation by Archaeological Resources of the Carolinas
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
❑X Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
No buildings or fill will be placed in waters of the US. Minimal clearing/ maintenance of vegetation is all that is required.
8c. What source(s) did you use to make the floodplain determination?
FEMA
Applicant/Agent's Printed Name
Date
Applicant/Agent's Signature
(Agent's signature is valid only if an authorization
letter from the applicant is provided.
Page 10 of 10

January 10, 2018
Re: Mountain Electric's Sugar Mountain Transmission Line, PCN Follow-up Response
Requests
Response requests from NC DWQ:
Condition 1.4. of Water Quality Certification (WQC) 4133 (attached), which corresponds to
U.S. Army Corps of Engineers Nationwide Permit 12, requires that construction corridors in
wetlands and across stream channels be minimized to the maximum extent practicable and
shall not exceed 50 feet wide for gas utility lines and 40 feet wide for all other utility lines. The
proposed construction corridor width at stream crossings for the subject project is unclear.
The Division understands that a 100 foot cleared right-of-way is required for the project.
However, it is anticipated that the construction corridor, including any land -disturbing activity,
will be necked down, or tapered, at stream and wetland crossings. Please confirm that this
condition will be met or clearly explain why it cannot be met. (15A NCAC 02H 0506 (b)(2) and
(c) (2)]
Mountain Electric Cooperative ("MEC") will be constructing an overhead electric high
voltage transmission line that requires a 75 -foot -wide cleared right-of-way, which is
MEC's standard right-of-way width. This right-of-way width will be maintained along
the entirety of the line and cleared of vegetation (primarily mature trees) that could
potentially fall on the line. Understory vegetation (less than 15' in height) adjacent to
streams will be retained where vehicular stream crossings are not proposed. Table 5-3
within the Rural Utilities Service Bulletin 1724E-200 includes typical right-of-way
widths for various voltages. Within the 69 kV category, the right-of-way width is shown
between 75-100 feet wide. MEC's 75 -foot -wide corridor is already set at the minimum
width allowable while still ensuring appropriate protection from danger trees.
2. Condition 1.5. of WQC 4133, requires that permanent maintained access corridors in wetlands
and across stream channels be restricted to the minimum width practicable and shall not
exceed 30 feet wide for gas utility lines and 20 feet wide for all other utility lines. The subject
Pre -Construction Notification includes proposed stream impacts ranging from 30-50 feet.
Please revise the proposed culvert length to that allowed by the WQC, or clearly explain why
the additional impact length is needed. (15A NCAC 02H 0506 (b)(2) and (c)(2)]
MEC always attempts to minimize impacts to environmental resources wherever
possible, and the access corridors across stream channels are no exception. However, the
Sugar Mountain/Banner Elk area includes steep terrain that is difficult to access with
construction equipment necessary to erect and perpetually maintain the new 69 kV
line. In order to provide access in these areas, some grading is necessary to build access
roads across these streams, which is why some of the culverts are longer than others.
3. Condition 11.11. of WQC 4133 requires culvert burial, with some exceptions including slope, in
order to allow for aquatic life movement. It appears that at least one culvert is proposed to be
installed at a slope requiring culvert burial. Please provide a cross section detail showing the
provisions for aquatic life passage that meet Condition 11.11. of WQC 4133. [15A NCAC 02H
.0506(g)]
The cross-section detail of S3 is included in the packet.
4. Condition 11.11. of WQC 4133, also requires that, if multiple pipes or barrels are required, they
shall be designed to mimic the existing stream cross section as closely as possible including
pipes or barrels at floodplain elevation and/or sills were appropriate. Widening the stream
channel should be avoided. Stream channel widening at the inlet or outlet end of structures
typically decreases water velocity causing sediment deposition that requires increased

maintenance and disrupts aquatic life passage. Please revise the permanent double culvert
installation detail to meet the noted condition. [15A NCAC 02H 0506 (b)(2) and (c)(2)]
The proposed culvert installations, that exceed the existing stream bed width, were sized
per the TR -55 Watershed Hydrology 10 year storm data and were " sized down" to the
extent possible. Multiple options for the crossing of these streams were considered, but
all presented reasonable concerns for additional/ongoing disturbance and/or future
impacts to the streams. Widening of the streams will be avoided except where streams are
less than 3' wide (S12 and S9), as culverts are 36" (or greater) in diameter.
5. Please explain why rip rap is necessary at the culvert inlet and outlet and include any
applicable calculations demonstrating the need for this material. If the rip rap is necessary,
please provide a detail showing the proper installation (below the streambed elevation) of the
rip rap pad at the culvert inlet and outlets. In addition, if the rip rap is proven to be necessary,
please revise the stream impact table to include the permanent impacts associated with the
rip rap pads. [15A NCAC 02H .0502(b)]
Riprap was provided out of an abundance of caution; however it is not necessarily
needed. The riprap has been removed in these areas.
6. Please explain why impact S9 is necessary. It appears that the utility easement could be
accessed from Hickory Nut Gap Road, thereby eliminating the need for impact S9. (15A
NCAC 02H .0506(0 and (g)]
MEC has investigated access in this area in great depth and has determined that the
stream crossing at S9 is necessary to access transmission structures 18 and 19. The
construction entrance location at structure 20 is the most appropriate point to access the
transmission easement from Hickory Nut Gap Road due to site-specific topographic
conditions adjacent to the road and traffic safety issues with regard to motorists line -of -
sight.
Response requests from USA CE:
Updated/revised threatened and endangered species assessment report that includes all
currently listed species for this area/county (to include bat species). Again not requesting
actually survey results but a complete list/description of relevant species and their habitat and
what if any habitat exists within the right-of-way/construction corridor. The report should also
note any anticipated effects on these species/habitats from the proposed work (see #2 for
related question).
The updated report and list was emailed to all parties, and is included in the
Response_Request Packet.
2. Also please provide information on the amount of trees that will be cleared within a) the
impact areas and b) the right-of-way in its entirety and if there are any percussive activities
planned (e.g. drilling, explosives, jack -hammering).
All areas within the ROW will be cut down to an early successional state; a tree count
was not conducted. The site plans detail locations of transmission poles. Auguring of
holes for the transmission poles will occur at each pole location. Until geotechnical
investigations occur, it is not known what construction techniques will be required to
auger the holes. Due to the terrain, geotechnical investigations cannot occur until the
right-of-way is cleared and any access roads are installed.

3. Plan/cross-sectional profile of proposed culvert impacts so that can determine if pipes are
properly sized, buried, and if any rip rap is proposed.
Please see culvert installation plans; a cross-sectional drawing of S3 is included in the
packet.
4. If proposed permanent impacts are 190 linear feet of stream channel, then a mitigation plan
needs to be submitted that will compensate for these permanent impacts.
Per "Note 2" of NWP 12, I have the understanding that impacts for linear projects are
calculated per stream and therefore are not cumulative for the project.
5. Mapping labels/corrections for Jurisdictional Waters: a) There are several discrepancies
between what is labeled/shown as jurisdictional waters on the USGS topographic maps - not
all waters have been labeled on the overall topo maps even though streams are shown
(assuming these are S2, S3, S6, S11, S14?). Sugar Creek (S6) is also not labeled as such on
the enlarged or the overall.
The revised maps are included in the packet. Sugar creek is S6. Please note that the
plans that were submitted are updated (from those of the field visit) and have correctly
labeled stream titles. Please let me know if there is any more confusion.
6. Impact clarification: On the PCN, the S9 is listed as 30 linear feet but it appears that the
plan label shows 40 linear feet.
A PCN form with corrected number is included in the packet.
7. Please include a discussion on if the cleared vegetation will be left in place or hauled off. If
hauled off, where is the planned disposal sites.
Brush and cleared vegetation debris from the transmission r/w corridor shall be "chipped"
and spread uniformly over the r/w. Debris from areas outside of the r/w on private
property may be spread on the ground if permission is granted by the property owner.
8. Please provide/include any correspondence from SHPO regarding previous cultural
resources review/coordination.
UCS submitted this project to the SHPO for review on 12/13/17. We have been in
contact with Renee Gledhill -Early of the SHPO, and have received confirmation
that the project is currently under review. We have requested comments within
30 days of the original submittal.
Response Requests from NC Wildlife Resources Commission:
1. Please provide the temporary and permanent seeding specifications for the project. We
strongly recommend that the permanent seeding mix consist of native grasses and forbs with
an emphasis on pollinator species. This was recently done for another gas pipeline project in
the upper piedmont. NCWRC can work with USFWS to provide recommendations, if needed.
Byran Tompkins was able to recommend a seed mix (of native species) that I will pass on
to our engineers for evaluation. I believe it passes State sedimentation and erosion
control requirements.
2. We recommend against using double-barreled culverts. Double culverts set at the same
elevation often result in one culvert carrying most or all of the flows over time; this can cause
channel instability and problems with aquatic organism passage.
A single culvert scenario was considered, but it would not allow adequate flow of water
as modeled during the 10 -year storm event. Additionally, a single culvert scenario would

3.
9
require a much larger pipe, and therefore a significant additional amount of fill material
would have to be placed in and around the culvert. This fill material would be required to
tie the finished grades of the proposed access road back into existing grades in order to be
acceptable for vehicle passage.
We recommend avoiding rock outcrops and cliffs within the right of way; are there any of
these features in the ROW?
No rock outcrops or cliffs were found within the ROW.
In order to lessen the impacts of the project to various amphibian species, we recommend
leaving downed woody debris on the edge of the corridor. Can this be done?
Leaving debris on the edge of the ROW will likely not be possible in most areas because
the ROW are on private property, and private land owners generally like their land left
looking tidy. I will pass that recommendation on, in case there are areas where it could
be applied.

409 ark ve .,rt �/ vt
41:t4e4e
vt
1/4"
SPACING
TRAP VOLUME
TRAP SIZE
WEIR SIZE
(%)
(FT)
(CU.FT.)
(Recommended)
(Length)
<5%
125
63
3'x7'x3'DEEP
2'
5 TO 10
100
50
3'x6'x3'DEEP
2'
10 TO 20
75
1
4
8
12
16
20
24
28
32
36 40
409 ark ve .,rt �/ vt
41:t4e4e
vt
1/4"
SPACING
TRAP VOLUME
TRAP SIZE
WEIR SIZE
(%)
(FT)
(CU.FT.)
(Recommended)
(Length)
<5%
125
63
3'x7'x3'DEEP
2'
5 TO 10
100
50
3'x6'x3'DEEP
2'
10 TO 20
75
38
3'x5'x2.5'DEEP
2'
20 TO 35
50
25
3'xTxTDEEP
2'
>35
25
13
Tx2'X2.5'DEEP
2'
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 21
SHALLOW SEDIMENT PIT 120o�
AT END OF WATER BAR
6" WEIR
RIP RAP / WASHED STONE SECTION A - A
FILTER AROUND SEDIMENT PIT VIEW LOOKING DOWNSTREAM
RIP RAP / WASHED STONE
FILTER AROUND SEDIMENT PIT
WATERBAR
APPROX. 2% SLOPE
COMPACTED SOIL
ABC STONE
(CRUSHER -RUN)
SECTION VIEW
A EXTEND ROAD SECTION AROUND TRAP
INSTALL TRAP AT GRADE
A vt le
SMALL SEDIMENT PIT AT
2:1 SIDE SLOPES
OR FLATTER. 5:1 MAX
FOR VEHICLE CROSSING
Sly_1MTp,I —
I I I III=1 I l=1 (—
SECTION THROUGH WATER BAR
NOTES:
1. FOR ALL ACCESS ROAD SLOPES GREATER THAN 10% , GRAVEL AND INSTALL
WATER BAR.
2. TO BE USED ON R/W AS CONDITIONS WARRANT, WHERE MORE EXTENSIVE
GRADING/GRAVELING IS REQUIRED FOR ACCESS CONSTRUCTION.
3. FOR ALL PROPOSED ACCESS ROADS, WATER BARS HAVE BEEN SHOWN ON
THE EROSION AND SEDIMENT CONTROL PLAN DRAWINGS ONLY IN AREAS
WHERE THE SLOPE EXCEEDS APPROXIMATELY 10%(f). HOWEVER, WEATHER
AND/OR ENVIRONMENTAL CONDITIONS MAY REQUIRE THE INSTALLATION OF
S 0 S S S S
INSTALLATION FREQUENCY
SLOPE
SPACING
TRAP VOLUME
TRAP SIZE
WEIR SIZE
(%)
(FT)
(CU.FT.)
(Recommended)
(Length)
<5%
125
63
3'x7'x3'DEEP
2'
5 TO 10
100
50
3'x6'x3'DEEP
2'
10 TO 20
75
38
3'x5'x2.5'DEEP
2'
20 TO 35
50
25
3'xTxTDEEP
2'
>35
25
13
Tx2'X2.5'DEEP
2'
WATER BAR AND/ R WATER BAR WITH EDIMENT PIT IN AREA WITH
LESSER SLOPE. WHERE SUCH CONDITIONS OCCUR, WATER BARS SHALL BE
INSTALLED PER THE SPACING IN THE ABOVE TABLE.
WATERBAR WITH SEDIMENT PIT
V f NOT TO SCALE
STREAMBANK
BEYOND ROADWAY
2-3" DIAMETER WASHED STONE, 6" DEEP
EXTEND 25' BEYOND BANK ON EACH SIDE
1 FT.
Tf TI1=
,—� U —Ii J HIP RIP -RAP (FILL
� ���
'~III il_ Il�lll�'" WITH CLASS A)
PLACE FILTER #57 WASHED '-III—IIIA (III—n o o -III 111111=1i�
STONE AROUND PIPE TO -I — PIPE SIZED TO CARRY NORMAL FLOW
'I-III=III=1
PREVENT CRUSHING
' —III i,ll'- WHEN FLOWING HALF FULL. USE
-Illi —1 , I,- DUCTILE IRON, CMP, OR RCP ONLY.
24" DIA MIN SECTION VIEW
Q
Lu
STONE /
(6" DEEP) /
I
CLASS ARIP-RAP
STREAM BANK
NOTES:
1. SLOPE APPROACHES TO CROSSING 2:1 OR FLATTER
2. SPILLWAY LENGTH=BANK TO BANK WIDTH OF STREAM OR AS SHOWN ON PLAN.
3. PIPE TO EXTEND 1' BEYOND LIMITS OF RIP -RAP.
4. CLASS A RIP -RAP TO BE USED TO ARMOR BANKS.
WET CROSSING
NOT TO SCALE
25 FT (TYP.)
FENCE POST (TYP.)
4"X4" TREATED LUMBER OR
3"+/- ROUND, TREATED FENCE POST
(MIN. 3' EMBEDMENT -EARTH)
MIN. 3' EMBEDMENT IN EARTH
3/8"
1 2 3 4 5 6 7 8 9 10 11 12
1/2"
N. BASS
ENGINEER:
J. ERVIN
DESIGNER:
C. HOPKINS
DRAFTER:
C. HOPKINS
DATE:
11/01/2017
SCALE:
NTS
CHECKED BY:
N. BASS
ELEC. APPROVAL:
N/A
CIVIL APPROVAL:
1
2
3
4
5
6
7
8
9 10
FIBERGLASS/COMPOSITE/TIMBER (OR GRAVEL) MATS FOR APPROACH
BRIDGE PANELS TO BE SUPPORTED ON SUBGRADE
APPROX.
Y L
SUPPORTED
(L) VARIES
BRIDGE PANELS
STREAM
TIMBER SUPPORT
INSTALL GRAVEL OR FIBERGLASS/COMPOSITE/TIMBER MATS FOR APPROACH
GENERAL BRIDGE NOTES:
APPROX.
YL
SUPPORTED
1. BRIDGE STRUCTURE SHALL BE CONSTRUCTED AT OR ABOVE BANK ELEVATION TO PREVENT THE ENTRAPMENT OF FLOATING MATERIALS AND DEBRIS.
2. ABUTMENTS SHALL BE PLACED PARALLEL TO AND ON STABLE BANKS. FIBERGLASS/COMPOSITE MATS SHALL BE UTILIZED FOR THE BRIDGE ABUTMENT.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING BRIDGE ABUTMENTS.
3. BRIDGE SPANS SHALL BE CONSTRUCTED TO SPAN THE ENTIRE CHANNEL.
4. WITH REMOVAL OF THE BRIDGE, ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED FOR STABILIZATION IMMEDIATELY.
5. ALL BRIDGES SHALL BE INSTALLED PERPENDICULAR OR NEAR PERPENDICULAR TO STREAM CHANNELS.
6. TO BE USED FOR CROSSING STREAMS THAT CANNOT BE CROSSED VIA MATS
7. STRUCTURAL ADEQUACY SUITABLE FOR THE EQUIPMENT TO BE EMPLOYED SHALL BE BY OTHERS.
o1 TEMPORARY BRIDGE
V f NOT TO SCALE
SUPPORT FENCE POST
MIN. 4"X4" TREATED LUMBER
BRACE - 4"X4" TREATED LUMBER
GATE POST - MIN. 12"X12" TREATED TIMBER
TWO HINGES (INSTALL TOP ONE DOWN,
I BOTTOM ONE UP)
MIN. 3' EMBEDMENT IN CONCRETE
STANDARD TWO 4'X 10' TUBULAR
STEEL FARM GATES
BRACE - 4" X 4" TREATED LUMBER
SUPPORT/FENCE POST
BARBED WIRE CROSSED AND
MIN. 3' EMBEDMENT IN CONCERETE WRAPPED AROUND BRACE POSTS
(GALVANIZED OR ALUMINUM COATED
STEEL, 2 STRANDED, 2-1/2 TO
15-1/2 GAGE STEEL, 4 -POINT BARBS -
NOTE: ASTM A121)
GATE SHOULD BE INSTALLED AS DIRECTED BY ENGINEER (GATE SHOULD OPEN "IN", WHERE POSSIBLE)
1 TYPICAL PIPE GATE
,J J NOT TO SCALE
3/4"
1 2 3 4 5 6
FILTER FABRIC LINER
PLACE FILTER STONE AROUND
PIPE TO PREVENT CRUSHING
CAP STONE BACKFILL WITH
#57 STONE FOR DRIVEABILITY
INSTALL NCDOT STD.
CLASS 1 RIP RAP STREAM
3' TO 4' FOR CULVERT
INLET STABILIZATION
WASHED STONE
NCDOT STD. CLASS 1 RIP RAP
ENERGY DISSIPATOR
FILTER FABRIC LINER
1"
1 2 3 4
6" TYP.
FILL WITH
71 CLASS 1 RIP RAP
CULVERT
NOTES:
1. ROAD APPROACHES CROSSING 5:1 OR FLATTER.
2. PIPE TO EXTEND A MINIMUM DISTANCE OF V BEYOND LIMITS OF RIP RAP
FILL.
3. NCDOT STD. CLASS 1 RIP RAP TO BE USED TO ARMOR BANKS.
4. CULVERT INSTALLATION MUST BE PERFORMED IN "DRY" CONDITIONS.
FLOWING STREAMS SHALL BE DAMMED WITH WATER PUMPED AROUND
CONSTRUCTION UNTIL CULVERT INSTALLATION IS COMPLETE.
PERMANENT CULVERT INSTALLATION
(ROCK BACKFILL ONLY) NOT TO SCALE
FILTER FABRIC LINER
PLACE #57 FILTER STONE AROUND
PIPE TO PREVENT CRUSHING
INSTALL NCDOT STD.
CLASS 1 RI
3'TO4'FOR CUI
INLET STABILIZ)
WASHED STi
NCDOT STD. CLASS 1 RIP RAP
ENERGY DISSII
8" BURY
DEPTH (TYP)
6" TYP.
FILL WITH
DUAL 36 IN RCP CLASS 1 RIP RAP
CULVERTS
NOTE: STREAM 3 CULVERTS TO BE
PLACED SUCH THAT INVERTS
BURIED IN STREAM BED
CAP STONE BACKFILL WITH
#57 STONE FOR DRIVEABILITY
6" TYP.
Ji -
I—
!, FILL WIT
CLASS 1 RIP RAP
RCP CULVERT
SECTION VIEW
PLAN VIEW
NOTES:
1. ROAD APPROACHES CROSSING 5:1 OR FLATTER.
2. PIPE TO EXTEND A MINIMUM DISTANCE OF 1' BEYOND LIMITS OF RIP RAP
FILL.
3. NCDOT STD. CLASS 1 RIP RAP TO BE USED TO ARMOR BANKS.
4. CULVERT INSTALLATION MUST BE PERFORMED IN "DRY" CONDITIONS.
FLOWING STREAMS SHALL BE DAMMED WITH WATER PUMPED AROUND
CONSTRUCTION UNTIL CULVERT INSTALLATION IS COMPLETE.
PERMANENT DOUBLE CULVERT INSTALLATION
(ROCK BACKFILL ONLY) NOT TO SCALE
PROJECT MANAGER:
N. BASS
ENGINEER:
J. ERVIN
DESIGNER:
C. HOPKINS
DRAFTER:
C. HOPKINS
DATE:
11/01/2017
SCALE:
NTS
CHECKED BY:
N. BASS
ELEC. APPROVAL:
N/A
CIVIL APPROVAL:
N/A
PROJECT DESIGNED FOR:
MOUNTAIN ELECTRIC
COOPERATIVE
PROJECT:
SUGAR MOUNTAIN 69kV
TRANSMISSION LINE
STI TLE:
EROSION CONTROL
DETAILS
VC SYNEPMETIC °
UC SYNERGETIC, LLC.
123 North White Street
Fort Mill, SC 29715
North Carolina COA No. #F-1217
NOTICE:
THE DATA IN THIS DOCUMENT INCORPORATES
PROPRIETARY RIGHTS OF UC SYNERGETIC, LLC.
ANY PARTY ACCEPTING THIS DOCUMENT DOES
SO IN CONFIDENCE AND AGREES THAT IT SHALL
NOT BE DUPLICATED IN WHOLE OR PART, NOR
DISCLOSED TO OTHERS WITHOUT THE CONSENT
OF UC SYNERGETIC, LLC.
CONTRACTOR SHALL VERIFY ALL CONDITIONS ON
JOB SITE & NOTIFY PROJECT MANAGER OF ANY
VARIATIONS FROM DIMENSIONS SHOWN ON THESE
DRAWINGS BEFORE PROCEEDING WITH ANY
CONSTRUCTION.
"I J
'SEAL
'�' ••"• 0
7
4
NO
SEAL
PROJECT NUMBER
07794-000
DRAWING SEQ REV.
No.
SEC 20 A
10 100 200
1 4 8 12 16 20 24 28 32 36 40 44 48 1 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96
20
30
50
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
1 2
3
4
5
6
7
8
9
10 11
12
13
14
15
1
2
3
4
5
6 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 25

Water Features of Mountain Elec is Co-op's Sugar Mountain 69 kV Transmission Line R O W
Legend
Streams
Transmission bne RrD
Substation Locations
wetlands
National Welland) ento/
FE MA RDS H aza rd lines
Created by EROC Inc for
Houdmn Electric Coo perkRe
on October 30 2017 from data
layers obtained from UC Syerge&c
LLC_ NC One Hop FFH« and the
US Fish &' dA sNaton/' @land
Inventory
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Neater Features of Mountain ElectricCo-op's Sugar Fountain 6 kV Transmission Line ROW
Legend
Streams
Transmission Line ROAl
- Substation Locations
wetlands
- National Wetland Inventory
FEMA Flood Hazard lines
Created by EROC Inc for
I'VIOLllltalll Electric Cooperative
on October 30 2017 from data
layers obtained from UC Synergenic
LLC_ NC One Pdap FEMA and the
US Fish &'kVildlife sNationa I '4Netland
Inventory
Feet
0 250 500 1 000
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#' A
Pp' w /
or, * r
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eoo� } T {
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Nater Features of Mountain ElectricCo-op's Sugar Fountain 6 kV Transmission Line ROW
Legend
Streams
Transmission Line RO'Ir',r`
- Substation Locations
wetlands
- National Wetland Invento-i
- FEMA Flood Hazard
Created by EROC Inc for
I'VIOLllltalll Electric Cooperative
on October 30 2017 from data
layers obtained from UC Synergenic
LLC_ NC One Pdap FEMA and the
US Fish &'kVildlife sNationa I '4,Vetland
Inventory
Nvliles
0 0.26 0 6