20201125 Ver 1_401 Application_20200831

DWR
Olrlslon of Water Resources
Pre -Construction Notification (PCN) Form
April 11, 2020 Ver 3.1
Initial Review
Has this project met the requirements for acceptance in to the review process?*
r Yes
r No
Is this project a public transportation project?*
C Yes r No
Change only if needed.
BIMS # Assigned *
Version#*
20201125
1
Is a payment required for this project?*
r No payment required
What amout is owed?*
r Fee received
r $240.00
r Fee needed - send electronic notification
r $570.00
Reviewing Office * Select Project Reviewer*
Asheville Regional Office - [phone] Kaylie Yankura:eads\kyankura
Information for Initial Review
1a. Name of project:
Horsepasture River WWTP and Collection System Improvements
1a. Who is the Primary Contact?*
Jon Swaim
1b. Primary Contact Email:*
[e-mail]
Date Submitted
8/31/2020
Nearest Body of Water
Horsepasture River
Basin
Savannah
Water Classification
C;Tr:+
Site Coordinates
Latitude: Longitude:
35.128866-83.066760
A. Processing Information
County (or Counties) where the project is located:
Jackson
Is this a NCDMS Project
r Yes r No
Is this project a public transportation project?*
r Yes r No
1a. Type(s) of approval sought from the Corps:
W Section 404 Permit (wetlands, streams and waters, Clean Water Act)
r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
1c. Primary Contact Phone:*
[phone]
L.1
1b. What type(s) of permit(s) do you wish to seek authorization?

W Nationwide Permit (NWP)
r Regional General Permit (RGP)
r Standard (IP)
1c. Has the NWP or GP number been verified by the Corps?
r Yes r No
Nationwide Permit (NWP) Number: 14 - Linear transportation
Nationwide Permit (NWP) Number: 7 - Outfall Structures/ Intake
NWP Numbers (for multiple NWPS):
NW7 - Outfall structure for proposed WWTP. NW14 - Access road for proposed WWTP.
1d. Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - Regular j— 401 Water Quality Certification - Express
j— Non-404 Jurisdictional General Permit j— Riparian Buffer Authorization
j— Individual Permit
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR 401 Certification:
For the record only for Corps Permit:
1f. Is this an after -the -fact permit application?*
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
Acceptance Letter Attachment
1h. Is the project located in any of NC's twenty coastal counties?
r' Yes r No
1j. Is the project located in a designated trout watershed?
r Yes r No
B. Applicant Information
1d. Who is applying for the permit?
W Owner r Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
r Yes r No
2. Owner Information
2a. Name(s) on recorded deed:
Tuckaseigee Water & Sewer Authority (TWSA)
2b. Deed book and page no.:
20/798
2c. Responsible party:
Daniel Mending, Executive Director, TWSA
2d.Address
Street Address
1246 West Main Street
Address tine 2
City
Sylva
Postal / Zip Cade
28779
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
State / Rwinoe / Rion
NC
Country
us
2f. Fax Number:
r^ Yes r No
r^ Yes r No

4. Agent/Consultant (if applicable)
4a. Name:
Jon Swaim
4b. Business Name:
McGill Associates, PA
4c.Address
Street Address
1013 State Farm Road
Address Line 2
City
Boone
Rstal / Zip Code
28607
4d. Telephone Number:
[phone]
4f. Email Address:*
[e-mail]
Agent Authorization Letter*
Horsepasture - Agent Authorization Form.pdf
State / Province / Region
NC
Country
US
4e. Fax Number:
366.6KB
C. Project Information and Prior Project History C^U
1. Project Information
1b. Subdivision name:
(if appropriate)
1c. Nearest municipality/ town:
Cashiers
2 Pro Project Identification
2a. Property Identification Number:
2b. Property size:
7582-46-3638
16.01
2c. Project Address
Street Address
US 64 East
Address tine 2
city
State / Province / Region
Cashiers
NC
Rstal / Zip Code
Country
28717
US
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Horsepasture River
3b. Water Resources Classification of nearest receiving water:*
C;Tr:+
3c. What river basin(s) is your project located in?*
Savannah
3d. Please provide the 12-digit HUC in which the project is located.
030601010103
4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The proposed project area consists of approArnately 15,995 linear feet of cleared and maintained road shoulder along US Highway 64 East, and appropmately 4.8-acres of an
undeveloped wooded property which contains a portion of the Horsepasture River and several wetland areas. The general land use in the probmity consists of undeveloped forested
land, commercial, and residential properties.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes r No r Unknown
4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)

Figure 1 Topo Map.pdf
5.11 MB
4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)
10 - Soil_Map.pdf 821.57KB
4f. List the total estimated acreage of all existing wetlands on the property:
4g. List the total estimated linear feet of all existing streams on the property:
4h. Explain the purpose of the proposed project:*
The purpose of the proposed project is to construct a new WWTP and sewer collection system which will accommodate potential future population growth and permit the connection of
outstanding and future wastewater allocations that have been delayed due to lack of capacity rather than to replace aging infrastructure. The current WWTP serving the Cashiers
community was constructed in 2005 and discharges to the Chattooga River. The Chattooga River is designated as an Outstanding Resource Water. The current WWTP contains aging
infrastructure, and has limitations in wastewater service. These limitations have hindered new development in the area which negatively impacts the local economy.
41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
This proposed project requires the construction of 2,115 If of 8" gravity sewer line, which is the minimum diameter permitted by State standards. An additional 2,170 If of 10" gravity
sewer line will be constructed in the eastern portion of the system to accommodate gravity flowtoward the Ingle's pump station from the Intersection pump station's receiving manhole.
Finally, 3,870 If of 12" gravity sewer line will be constructed to the influent pump station at the new WWTP site, collecting flows from the Ingle's pump station. Approximately 2,850 If of 8"
force main will be constructed to convey flows from the Intersection pump station to the 10" gravity sewer line described above. From the Ingle's pump station approximately 4,990 If of
10" force main will follow US Highway 64 eastward to the 12" gravity sewer line. A control valve located at US Highway 64 will allow flows to be diverted to the existing 6" diameter force
main following US Highway 64 westward to a manhole from which gravity flow will be directed toward the existing WWTP. See Figures 6-A-1 and 6-A-2 for a layout of the collection
system. Proposed sewer lines will be installed in previously cleared and maintained road shoulders. Existing culverted streams crossing under Highway 64 will be avoided via directional
bore below or open cut trenching above pipe. No stream or wetland impacts are anticipated as a result of the proposed sewer line installation. See Plan Sheets C-101 to C-116 and
Location Map.
The majority of the proposed WWTP facility, associated erosion control and stormwater measures, and appurtenances will be constructed in upland areas and will not result in impacts
to jurisdictional waters. The WWTP outfall structure (discharge pipe and concrete headwall) will be constructed within the bank of the Horsepasture river resulting in approximately 8
linear feet of permanent stream impacts (Impact S4) and 10 linear feet of temporary stream impacts (Impact S5), (see Plan Sheets C-201 and C-215). Temporarily impacted river bed
and banks will be returned to original conditions using original excavated material, and stabilized with fully biodegradable matting, native NC riparian seed mix, and native live stakes.A
pump around or other approved flow diversion will be used to ensure that all in -stream work occurs in the dry.
The proposed access road from Highway 64 will cross Wetland C, the Horsepasture River, and the UT to the Horsepature River (Stream 2). Plans call for a free spanning bridge to be
constructed across the Horsepasture River to avoid permanent river impacts. Initial plans called for an access road crossing in the northeastern corner of the property, but the
Horsepature River channel is heavilty eroded and near vertical in that section, and is within a few feet of the edge of pavement on Hwy 64. An access road could not be designed in this
area without relocating the river and constructing large bridge footings.
A temporary river crossing (Impact S1 - 72LF and Impact W1 - 0.01-acres) will be constructed in the Horsepasture River during bridge and road construction to allow for equipment
access and bridge placement (see Plan Sheet C-217). The temporary crossing was designed to fit as many temporary pipes in the existing river channel as possible to provide
unobstructed flow. The five 48" HDPE temporary pipes will be stabilized with geotextile fabric backed rip rap, #57 washed stone, and grouted with concrete (see Plan Sheet details C-
217). No live concrete will come in contact with river flow. A pump around or other approved flow diversion will be used to ensure that all in -stream work occurs in the dry. All temporary
crossing materials will be removed from river channel post construction, river bed and banks and wetland will be returned to original conditions using original excavated material and
stabilized With fully biodegradable matting, native NC riparian seed mix, and native live stakes (see Live Stake and Coir Mat Installation Detail C-212). Bridge and road construction Will
result in 0.08-acres (Impact W2) of permanent impacts to Wetland C.
The proposed access road will also cross Stream 2. Approximately 48 linear feet of double 30" HDPE pipes with concrete headwalls is proposed for the crossing (Impact S2 - 52LF). The
proposed HDPE pipes will be embedded 6" into the stream bed to allowfor passage of aquatic organisms during lowflow conditions. Installation of the pipes will result in 20LF of
temporary stream impacts for equipment access and grading (Impact S3 - 20LF). A pump around or other approved flow diversion will be used to ensure that all in -stream work occurs
in the dry. Temporarily impacted stream bed and banks will be returned to original conditions using original excavated material, and stabilized with fully biodegradable matting, native NC
riparian seed mix, and native live stakes.
Multiple access road designs were considered in an attempt to avoid permanent stream and wetland impacts. This route was ultimately chosen as it provides access from Hwy 64 that
meets NCDOT standards, allows for a bridge crossing of the Horsepasture River, and allows for proper road gradient up to the WWTP site.
See Plan Sheets CE-201 through C-217 for sewer line and access road design and details, and erosion control and stormwater design. Typical grading equipment such as back hoes,
dump trucks, excavators, and bulldozers will be used on the proposed project.
41. Please upload project drawings for the proposed project.
15.00391-Civil Set - Full.pdf 26.15MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
r Yes
r No
Comments:
Originally delineated in 2013 and confirmed in 2018 and 2019.
5b. If the Corps made a jurisdictional determination, what type of determination was made?
r Preliminary r Approved t^ Not Verified r Unknown r N/A
Corps AID Number:
SAW-2013-00712
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company: Clearwater Environmental Consultants
O Unknown
Other:

5d. List the dates of the Corp jurisdiction determination or State determination if a determination was made by the Corps or DWR
Corps determination - 4/29/2013.
Jurisdictional areas were confirmed in the field by McGill Associates Environmental Specialists during several site visits completed in the winter of 2018 and spring of 2019.
5d1. Jurisdictional determination upload
702 JD from Corps (04 30 13).pdf 2.21 MB
6. Future Project Plans
6a. Is this a phased project?*
f Yes G No
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
D. Proposed Impacts Inventory
1. Impacts Summary
1a. Where are the impacts associated with your project? (check all that apply):
W Wetlands W Streams -tributaries r Buffers
r Open Waters r Pond Construction
2. Wetland Impacts
2a1 Reason (?) 2b. Impact type * M 2c. Type of W. 2d. W. name * 2e. Forested * 2f. Type of 2g. Impact
Jurisdicition*(?) area
W1
Construction Access
T
Bottomland Hardwood Forest
Wetland C
Yes
Both
0.010
(acres)
W2
Fill
P
Bottomland Hardwood Forest
Wetland C
Yes
Both
0.080
(acres)
2g. Total Temporary Wetland Impact
0.010
2g. Total Wetland Impact
0.090
2g. Total Permanent Wetland Impact
0.080
2h. Comments:
Temporary wetland impacts associated with construction access and river crossing. Permanent wetland impacts associated with fill for access drive
and bridge construction.
3. Stream Impacts
3a. Reason for impact (?)
3b.lmpact type *
3c. Type of impact*
3d. S. name*
3e. Stream Type*
Type of
3gSwidth *
3h. ImpactM
❑
�[3f.
urisdiction*
length*
S1
Temporary Crossing
Temporary
Workpad/Causeway
Fbrsepasture River
Perennial
Both
25
72
Average (feet)
(liriearfeet)
S2
Road Crossing
9
Permanent
Culvert
LIT Horsepasture River
P
Intermittent
Both
2
52
(Stream 2)
Average (feet)
(linearfeet)
S3
Road Crossing
Temporary
Workpad/Causeway
LIT Florsepasture River
Intermittent
Both
2
20
(Stream 2)
Average (feet)
(linearfeet)
�
Concrete Headwall
Permanent
Culvert
Horsepasture River
Perennial
Both
25
8
Average (feet)
(lirearfeet)
S5
Concrete Headwall
Temporary
Workpad/Causeway
Horsepasture River
Perennial
Both
25
10
Average (feet)
(linearfeet)
31. Total jurisdictional ditch impact in square feet:
0
31. Total permanent stream impacts:
60
3i. Total stream and ditch impacts:
162
31. Total temporary stream impacts:
102
3j. Comments:
Impact S1 associated vdth temporary construction access across Horsepasture River for construction of bridge and access road to WWTP.
Impacts S2 and S3 associated with construction of access road and placement of approx. 521f culvert in stream.
Impacts S4 and S5 associated with discharge pipe/outfall structure from WWTP and concrete headwall construction.

E. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
WWTP site was chosen to avoid stream, wetland, trout buffer, and floodplain impacts. Afree spanning bridge design was chosen to avoid permanent
impacts to the Horsepasture River. WWTP discharge structure was designed to limit permanent impacts to the bank of the Horsepasture River and
avoid bed impacts or erosion potential. Multiple access road designs were considered in an attempt to avoid permanent stream and wetland impacts.
This route was ultimately chosen as it provides access from Hwy 64 that meets NCDOT standards, allows for a bridge crossing of the Horsepasture
River, and allows for proper road siting, turning radius, and gradient up to the WWTP site.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
A pump around or other approved Flow diversion Will be used to ensure that all in -stream work occurs in the dry. Temporarily impacted stream bed and
banks will be returned to original conditions using original excavated material, and stabilized with fully biodegradable matting, native NC riparian seed
mix, and native live stakes. No live concrete will come in contact with surface water and will be allowed to cure for 24 hours before natural flow is
returned.
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?
r Yes r No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
Impacts to wetland and streams were limited to below mitigation thresholds for Nationwide 7 and 14.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes r No
If no, explain why:
Horsepasture River does not have protected riparian buffers.
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes r No
2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)?
r Yes r No
Comments:
Stormvrater permitting will be obtained through the Jackson County Permitting & Code Enforcement Department.
G. Supplementary Information
1. Environmental Documentation
1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
r Yes r No
1b. 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 (North Carolina)
Environmental Policy Act (NEPAISEPA)?*
r Yes r No
1c. If you answered "yes" to the above, has the document review been finalized bythe State Clearing House?*
r Yes r No
NEPAor SEPA Final Approval Letter
USDA Approval.pdf
2. Violations (DWR Requirement)
151.75KB
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)? *
r Yes r No
I Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*

r Yes r No
3c. Upload a qualitative or quantitative cumulative impact analysis.
TWSA- WWTP- Water Resources Cumulative Impact Analysis.pdf 143.69KB
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
r Yes r Nor N/A
4b. Describe, in detail, the treatment methods and dispositions (non -discharge or discharge) of wastewater generated from the proposed project. If the wastewater will be treated
at a treatment plant, list the capacity available at that plant.
See WWTP design calculations and NPDES permit in miscellaneous attachments.
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
r Yes r No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
r Yes r No
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d. Is another Federal agency involved?*
r Yes r No r Unknown
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
r Yes r No
5g. Does this project involve bridge maintenance or removal?
r Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?'
r Yes r No
51. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
r Yes r No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
https://ecos.fws.gov/ipac/
https://ncnhde.natureserve.org/
Consultation Documentation Upload
USFWS Response.pdf 182.85KB
Cashiers WWTP TE Report.pdf 3.01MB
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes r No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
https:llvwm.habitat.noaa.gov/application/efhmapper/index.html
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 status?*
r Yes r No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
https://nc.maps.arcgis.corTapps/mbappvievver/index.html?id=79ea671 ebdcc45639f0860257d5f5ed7
7c. Historic or Prehistoric Information Upload
11.00424 Cashiers Site B SHPO Concurrence 2013-12-20.pdf 51.76KB
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-yearfloodplain?*
r Yes r No
8b. If yes, explain how project meets FEMA requirements:

Floodplain development will be coordinated through the Jackson County Floodplain Manager. A no -rise certification will be obtained prior to project
construction.
8c. What source(s) did you use to make the floodplain determination?*
https://fris. nc.gov/fris/indexaspx?F IPS=099&ST=NC&user=General % 20Public
Miscellaneous U
Comments
Miscellaneous attachments not previously requested.
H - Design Calculations.pdf 1.39MB
B - NPDES Permit.pdf 8.69MB
2-LOCATION.pdf 109.76KB
15.00391-Impact Map-Layout1.pdf 2.73MB
Signature U
W By checking the box and signing below, I certify that:
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
• I intend to electronically sign and submit the PCN form.
Full Name:
Jon Swaim
Signature
C 19. ¢5iCezii4 L
Date
8/31 /2020