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MMI - Charlotte (704) 576-1111
MMI - Raleigh (919) 556-8845
MOGENSEN MITIGATION INC. Ma
ENVIRONMENTAL CONSULTING
MOGENSEN MITIGATION, INC
19 September 2022
David Brown
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Subject: PJD Request and ePCN for Cascade Lake Dam repairs, Transylvania County NC
Dear David,
On behalf of Cascade Power Company, we are submitting this Preliminary Jurisdictional Determination
(PJD) Request package and e-PCN (NWP-3) for the proposed structural stabilization improvements needed
to meet NC Dam Safety Program requirements at Cascade Lake Dam. I am the environmental consultant
handling delineation and permitting tasks for Schnabel Engineering, the firm designing the repairs. Lisa
Pickelsimer is the applicant/owner and president of Cascade Power Company. The hydropower plant
below the dam ceased operating decades ago, and there is no plan to restore hydroelectric generation; the
lake will be used for recreational uses.
Cascade Lake Dam is on a 677 acre parcel (PIN # 9515-61-1020) six miles east of Brevard in eastern
Transylvania County. The parcel includes the majority of Cascade Lake to a point 6,800 feet upstream of
the dam, and 1,200 feet of Little River below the dam. Our PJD review area for this project is limited to
approximately 1.2 acre, extending 80 feet upstream and downstream of the dam. The dam has a low-level
gated outlet at elevation 2185 ft that releases base flow, and a two -stage concrete spillway. The lower
spillway is at elevation 2225 ft (normal pool stage) and is 20 feet long; the higher spillway is at elevation
2226.5 ft and is 150 feet long. An excellent 90-second drone video by Gregory George on YouTube shows
the low-level outlet and both spillways operating: https://www.youtube.com/watch?v=G2mvbo3zRfE
Features Potentially Subject to Clean Water Act Regulation
Potential jurisdictional waters in the PJD review area are limited to Cascade Lake (open waters, normal pool
= 2225 ft) and Little River below the dam (perennial stream, average width = 100 feet at OHWM). There is
no wetland and no mapped hydric soil in the PJD review area. NRCS-mapped soils are Chestnut-Edneyville
complex, Ashe-Chestnut complex, and Evard loam; all are steep -slope rocky soils. Just below the dam the
river cascades over steep bedrock and boulders, dropping 30 feet in elevation along the first 400 foot reach
within a steep -walled ravine. We did not flag the OHWM boundary, which is mostly on bare rock; the
OHWM mapping provided is approximate. The lake and river are designated Class-C-Trout waters in USGS
HUC # 06010105-0204 (above dam) and 06010105-0205 (below dam).
Proposed Scope of Work and Impacts to Waters
Environmental Field Studies ■ Wetland & Stream Delineation ■ 404-401 Permits ■ Mitigation Plans & Banking
MOGENSEN MITIGATION INC.
A stability analysis by Schnabel Engineering revealed that the concrete base of the dam is not keyed into
the underlying bedrock and is susceptible to sliding which could cause dam failure. To stabilize the dam,
Schnabel proposes to install a series of 14 post -tensioned anchors vertically through the spillway crest
down into the underlying bedrock, spaced at 10 to 20 ft intervals. Each anchor will be installed inside a 9-
to 10-inch diameter vertical boring and will include 20 strands of reinforced steel rods, grouted, capped and
sealed with a reinforced concrete encasement. Anchor lengths vary from 47 feet near the ends of the
spillway to 105 feet near the middle, and will extend approximately 40 feet into the bedrock. The anchors
will not directly affect jurisdictional waters, as the dam crest and footprint are not considered jurisdictional
features.
Access for the drilling equipment will be from the dam abutments and from a barge floating in the lake.
The left (west) abutment provides access from the adjacent upland directly onto the dam crest. Access
from the right (east) abutment will require placing riprap in the lake pool between the upland and the
lower spillway, resulting in 480 sq.ft (0.011 acre) of permanent impact to open waters.
The lake pool level will be temporarily lowered a few feet while the anchor installation work is ongoing by
using the existing low-level drain gate and supplementary siphons and/or pumps as needed.
A new warning barrier for boaters will also be installed approximately 600 feet upstream of the dam, in a
similar location to the existing warning barrier. The proposed warning barrier consists of float -mounted
signs interconnected with cables, with the cables anchored to the shoreline (upland) on each side. These
floating structures are not considered as impacts to jurisdictional waters.
The following supporting documents are included with this JD Request and e-PCN submittal:
1) Preliminary ORM Data Entry Fields Form
2) JD Request Form
3) Appendix 2 PJD Form
4) Agent authorization form signed by owner
5) USGS topographic quad vicinity map
6) Tax Parcel Map
7) USDA Soil Survey of Transylvania County
8) PJD Map: Potential Jurisdictional Waters of the US
9) Dam Photo and elevation profile of Little River below Cascade Lake Dam
10) Cross-section profile through Cascade Lake Dam with proposed anchors
11) FEMA Flood Risk Information System (FRIS) Map
12) USGS Watershed Map, French Broad River HUC 06010105-0204
13) Proposed impacts to jurisdictional waters, Cascade Lake Dam repairs
14) Google Earth aerial photo of Cascade Lake Dam, March 2022
15) Endangered Species impact assessment report
16) FWS IPaC Official Species List letter, Aug 2022
MVK
MOGENSEN MITIGATION, INC
www.MogMit.com Page 2
MOGENSEN MITIGATION INC.
Please let me know if you need any further information or a site visit during your review of our application.
Sincerely,
)4,468
Gerald Pottern, Senior Biologist
Mogensen Mitigation Inc.
104 East Chestnut Ave
Wake Forest NC 27587
919-556-8845 office
919-649-6506 mobile
gerald@mogmit.com
cc: Samuel Kees, Schnabel Engineering
MVK
MOGENSEN MITIGATION, INC
www.MogMit.com Page 3
Preliminary ORM Data Entry Fields for New Actions
SAW — - BEGIN DATE [Received Date]:
1. Project Name: Cascade Lake Dam repair
2. Work Type: Private n Institutional n Government n Commercial n
3. Project Description / Purpose:
Install a series of steel rod anchors vertically through the spillway crest down into the underlying
bedrock, spaced at 10 to 20 ft intervals, inside 9- to 10-inch diameter bore holes. Add riprap fill
4. Property Owner / Applicant:
Cascade Power Company, Lisa Pickelsimer
5. Agent / Consultant: Gerald Pottern, Mogensen Mitigation Inc.
6. Related Action ID Number(s):
7. Project Location - Coordinates, Street Address, and/or Location Description:
Cascade Lake Dam Road, 35.2193, -82.6397
8. Project Location - Tax Parcel ID: PIN # 9515-61-1020
9. Project Location — County: Transylvania
10. Project Location — Nearest Municipality or Town : Pisgah Forest, 6 miles east of Brevard
11. Project Information — Nearest Waterbody: Little River, Cascade Lake
12. Watershed / 8-Digit Hydrologic Unit Code:
HUC # 06010105-0204
Authorization: Section 10 n Section 404 n Section 10 & 404 n
Regulatory Action Type:
Standard Permit
✓ Nationwide Permit # 3
n Regional General Permit #
n Jurisdictional Determination Request
Pre -Application Request
Unauthorized Activity
n Compliance
n No Permit Required
Revised 20210428
Jurisdictional Determination Request
US Army Corps
of Engineers
-
Wilmington District
This form is intended for use by anyone requesting a jurisdictional determination (JD) from the
U.S. Army Corps of Engineers, Wilmington District (Corps). Please include all supporting
information, as described within each category, with your request. You may submit your request
via mail, electronic mail, or facsimile. Requests should be sent to the appropriate project
manager of the county in which the property is located. A current list of project managers by
assigned counties can be found on-line at:
http: //www. saw.usace. army.mil/Missions/Re gulatoryPermitPro gram/Contact/CountyLocator. aspx,
by calling 910-251-4633, or by contacting any of the field offices listed below. Once your
request is received you will be contacted by a Corps project manager.
ASHEVILLE & CHARLOTTE REGULATORY
FIELD OFFICES
US Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
General Number: (828) 271-7980
Fax Number: (828) 281-8120
RALEIGH REGULATORY FIELD OFFICE
US Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
General Number: (919) 554-4884
Fax Number: (919) 562-0421
WASHINGTON REGULATORY FIELD OFFICE
US Army Corps of Engineers
2407 West Fifth Street
Washington, North Carolina 27889
General Number: (910) 251-4610
Fax Number: (252) 975-1399
WILMINGTON REGULATORY FIELD OFFICE
US Army Corps of Engineers
69 Darlington Avenue
Wilmington, North Carolina 28403
General Number: 910-251-4633
Fax Number: (910) 251-4025
INSTRUCTIONS:
All requestors must complete Parts A, B, C, D, E, F and G.
NOTE TO CONSULTANTS AND AGENCIES: If you are requesting a JD on behalf of a
paying client or your agency, please note the specific submittal requirements in Part H.
NOTE ON PART D — PROPERTY OWNER AUTHORIZATION: Please be aware that
all JD requests must include the current property owner authorization for the Corps to
proceed with the determination, which may include inspection of the property when
necessary. This form must be signed by the current property owner(s) or the owner(s)
authorized agent to be considered a complete request.
NOTE ON PART D - NCDOT REQUESTS: Property owner authorization/notification for
JD requests associated with North Carolina Depailment of Transportation (NCDOT)
projects will be conducted according to the current NCDOT/USACE protocols.
NOTE TO USDA PROGRAM PARTICIPANTS: A Corps approved or preliminary JD
may not be valid for the wetland conservation provisions of the Food Security Act of
1985. If you or your tenant are USDA Program participants, or anticipate participation in
USDA programs, you should also request a certified wetland determination from the local
office of the Natural Resources Conservation Service, prior to starting work.
Version: May 2017 Page 1
Jurisdictional Determination Request
A. PARCEL INFORMATION
Street Address: 1681 Little River Campground Rd
City, State: Pisgah Forest, NC 28768
County: Transylvania
Parcel Index Number(s) (PIN): 9515-61-1020
B. REQUESTOR INFORMATION
Name: Gerald Pottern, MogensenMitigation Ind
Mailing Address: 104 E Chestnut Ave
Telephone Number:
Electronic Mail Address:
Select one:
Wake Forest NC 27587
919-556-8845, 919-649-6506 cell
gerald@mogmit.com
I am the current property owner.
I am an Authorized Agent or Environmental Consultant'
Interested Buyer or Under Contract to Purchase
Other, please explain.
C. PROPERTY OWNER INFORMATION2
Name: Cascade Power Co, Lisa Pickelsimer
Mailing Address:
Telephone Number:
Electronic Mail Address:
1016 Rosewood Dr NE
Atlanta GA 30306
770-329-1506
' Must provide completed Agent Authorization Form/Letter.
2 Documentation of ownership also needs to be provided with request (copy of Deed, County GIS/Parcel/Tax Record).
Version: May 2017 Page 2
Jurisdictional Determination Request
D. PROPERTY ACCESS CERTIFICATION3'4
By signing below, I authorize representatives of the Wilmington District, U.S. Army Corps of
Engineers (Corps) to enter upon the property herein described for the purpose of conducting on -
site investigations, if necessary, and issuing a jurisdictional determination pursuant to Section
404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act of 1899. I, the
undersigned, am either a duly authorized owner of record of the property identified herein, or
acting as the duly authorized agent of the owner of record of the property.
Gerald Pottern
Print Name
Capacity: ❑ Owner ❑✓ Authorized Agents
15 Sept 2021
Date
Gerald Pottern (agent authorization letter attached)
Signature
E. REASON FOR JD REQUEST: (Check as many as applicable)
❑ I intend to construct/develop a project or perform activities on this parcel which would be
designed to avoid all aquatic resources.
❑ I intend to construct/develop a project or perform activities on this parcel which would be
designed to avoid all jurisdictional aquatic resources under Corps authority.
❑ I intend to construct/develop a project or perform activities on this parcel which may
require authorization from the Corps, and the JD would be used to avoid and minimize
impacts to jurisdictional aquatic resources and as an initial step in a future permitting
process.
❑✓ I intend to construct/develop a project or perform activities on this parcel which may
require authorization from the Corps; this request is accompanied by my permit application
and the JD is to be used in the permitting process.
❑ I intend to construct/develop a project or perform activities in a navigable water of the
U.S. which is included on the district Section 10 list and/or is subject to the ebb and flow of
the tide.
A Corps JD is required in order obtain my local/state authorization.
I intend to contest jurisdiction over a particular aquatic resource and request the Corps
L
confirm that jurisdiction does/does not exist over the aquatic resource on the parcel.
❑ I believe that the site may be comprised entirely of dry land.
❑ Other:
3 For NCDOT requests following the current NCDOT/USACE protocols, skip to Part E.
4 If there are multiple parcels owned by different parties, please provide the following for each additional parcel on a
continuation sheet.
5 Must provide agent authorization faun/letter signed by owner(s).
Version: May 2017
Page 3
Jurisdictional Determination Request
F. JURISDICTIONAL DETERMINATION (JD) TYPE (Select One)
❑✓
I am requesting that the Corps provide a preliminary JD for the property identified herein.
A Preliminary Jurisdictional Determination (PJD) provides an indication that there may
be "waters of the United States" or "navigable waters of the United States"on a property.
PJDs are sufficient as the basis for permit decisions. For the purposes of permitting, all
waters and wetlands on the property will be treated as if they are jurisdictional "waters of
the United States". PJDs cannot be appealed (33 C.F.R. 331.2); however, a PJD is
"preliminary" in the sense that an approved JD can be requested at any time. PJDs do
not expire.
I am requesting that the Corps provide an approved JD for the property identified herein.
An Approved Jurisdictional Determination (AJD) is a determination that
jurisdictional "waters of the United States" or "navigable waters of the United
States" are either present or absent on a site. An approved JD identifies the limits of
waters on a site determined to be jurisdictional under the Clean Water Act and/or
Rivers and Harbors Act. Approved JDs are sufficient as the basis for permit
decisions. AJDs are appealable (33 C.F.R. 331.2). The results of the AJD will be
posted on the Corps website. A landowner, permit applicant, or other "affected
party" (33 C.F.R. 331.2) who receives an AJD may rely upon the AJD for five years
(subject to certain limited exceptions explained in Regulatory Guidance Letter 05-
02).
I am unclear as to which JD I would like to request and require additional information
to inform my decision.
G. ALL REQUESTS
n
Map of Property or Project Area. This Map must clearly depict the boundaries of the
review area.
Size of Property or Review Area 1 .2 acres.
❑ The property boundary (or review area boundary) is clearly physically marked on the site.
Version: May 2017
Page 4
Jurisdictional Determination Request
H. REQUESTS FROM CONSULTANTS
❑✓
❑✓
Project Coordinates (Decimal Degrees): Latitude: 35.2190
Longitude: -82.6394
A legible delineation map depicting the aquatic resources and the property/review area.
Delineation maps must be no larger than 11x 17 and should contain the following: (Corps
signature of submitted survey plats will occur after the submitted delineation map has been
reviewed and approved).6
• North Arrow
• Graphical Scale
• Boundary of Review Area
• Date
• Location of data points for each Wetland Determination Data Form or tributary
assessment reach.
For Approved Jurisdictional Determinations:
• Jurisdictional wetland features should be labeled as Wetland Waters of the US, 404
wetlands, etc. Please include the acreage of these features.
• Jurisdictional non -wetland features (i.e. tidal/navigable waters, tributaries,
impoundments) should be labeled as Non -Wetland Waters of the US, stream, tributary,
open water, relatively permanent water, pond, etc. Please include the acreage or linear
length of each of these features as appropriate.
• Isolated waters, waters that lack a significant nexus to navigable waters, or non -
jurisdictional upland features should be identified as Non -Jurisdictional. Please
include a justification in the label regarding why the feature is non jurisdictional (i.e.
"Isolated", "No Significant Nexus", or "Upland Feature"). Please include the acreage
or linear length of these features as appropriate.
For Preliminary Jurisdictional Determinations:
• Wetland and non -wetland features should not be identified as Jurisdictional, 404,
Waters of the United States, or anything that implies jurisdiction. These features can be
identified as Potential Waters of the United States, Potential Non -wetland Waters of
the United States, wetland, stream, open water, etc. Please include the acreage and
linear length of these features as appropriate.
n
Completed Wetland Determination Data Forms for appropriate region
(at least one wetland and one upland form needs to be completed for each wetland type)
6 Please refer to the guidance document titled "Survey Standards for Jurisdictional Determinations" to ensure that the
supplied map meets the necessary mapping standards. http://www.saw.usace.army.mil/Missions/Regulatory-Permit-
Pro gram/Jurisdiction/
Version: May 2017
Page 5
Jurisdictional Determination Request
z
❑
Completed appropriate Jurisdictional Determination form
• PJDs, please complete a Preliminary Jurisdictional Determination Form' and include the
Aquatic Resource Table
• AJDs, please complete an Approved Jurisdictional Determination Form'
Vicinity Map
Aerial Photograph
USGS Topographic Map
Soil Survey Map
Other Maps, as appropriate (e.g. National Wetland Inventory Map, Proposed Site
Plan, previous delineation maps, LIDAR maps, FEMA floodplain maps)
Landscape Photos (if taken)
NCSAM and/or NCWAM Assessment Forms and Rating Sheets
NC Division of Water Resources Stream Identification Forms
Other Assessment Forms
' www.saw.usace.army.mil/Portals/59/docs/regulatory/regdocs/JD/RGL 08-02 App A Prelim JD Form fillable.pdf
' Please see http://www.saw.usace.army.mil/Missions/Regulatory-Permit-Program/Jurisdiction/
Principal Purpose: The information that you provide will be used in evaluating your request to determine
whether there are any aquatic resources within the project area subject to federal jurisdiction under the regulatory
authorities referenced above.
Routine Uses: This information may be shared with the Department of Justice and other federal, state, and local
government agencies, and the public, and may be made available as part of a public notice as required by federal
law. Your name and property location where federal jurisdiction is to be determined will be included in the
approved jurisdictional determination (AJD), which will be made available to the public on the District's website
and on the Headquarters USAGE website.
Disclosure: Submission of requested information is voluntary; however, if information is not provided, the
request for an AJD cannot be evaluated nor can an AJD be issued.
Version: May 2017 Page 6
Appendix 2 - PRELIMINARY JURISDICTIONAL DETERMINATION (PJD) FORM
BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR PJD:
B. NAME AND ADDRESS OF PERSON REQUESTING PJD: Gerald Pottern, 104 E Chestnut Ave, Wake Forest NC 27587
C. DISTRICT OFFICE, FILE NAME, AND NUMBER:
D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION:
(USE THE TABLE BELOW TO DOCUMENT MULTIPLE AQUATIC RESOURCES AND/OR
AQUATIC RESOURCES AT DIFFERENT SITES)
State: NC County/parish/borough: Transylvania City: Brevard, Pisgah Forest
Center coordinates of site (lat/long in degree decimal format):
Lat.: 35.2190
Long.: -82.6394
Universal Transverse Mercator:
Name of nearest waterbody: Little River, Cascade Lake
E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
❑ Office (Desk) Determination. Date:
❑ Field Determination. Date(s):
TABLE OF AQUATIC RESOURCES IN REVIEW AREA WHICH "MAY BE" SUBJECT TO REGULATORY
JURISDICTION.
Site
number
Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
Estimated amount
of aquatic resource
in review area
(acreage and linear
feet, if applicable)
Type of aquatic
resource (i.e., wetland
vs. non -wetland
waters)
Geographic authority
to which the aquatic
resource "may be"
subject (i.e., Section
404 or Section 10/404)
A
35.2190
-82.6395
0.40 ac
open water
404
B
35.2191
-82.6393
80 ft
stream
404
1) The Corps of Engineers believes that there may be jurisdictional aquatic resources in
the review area, and the requestor of this PJD is hereby advised of his or her option
to request and obtain an approved JD (AJD) for that review area based on an
informed decision after having discussed the various types of JDs and their
characteristics and circumstances when they may be appropriate.
2) In any circumstance where a permit applicant obtains an individual permit, or a
Nationwide General Permit (NWP) or other general permit verification requiring "pre -
construction notification" (PCN), or requests verification for a non -reporting NWP or
other general permit, and the permit applicant has not requested an AJD for the
activity, the permit applicant is hereby made aware that: (1) the permit applicant has
elected to seek a permit authorization based on a PJD, which does not make an
official determination of jurisdictional aquatic resources; (2) the applicant has the
option to request an AJD before accepting the terms and conditions of the permit
authorization, and that basing a permit authorization on an AJD could possibly result
in less compensatory mitigation being required or different special conditions; (3) the
applicant has the right to request an individual permit rather than accepting the terms
and conditions of the NWP or other general permit authorization; (4) the applicant can
accept a permit authorization and thereby agree to comply with all the terms and
conditions of that permit, including whatever mitigation requirements the Corps has
determined to be necessary; (5) undertaking any activity in reliance upon the subject
permit authorization without requesting an AJD constitutes the applicant's acceptance
of the use of the PJD; (6) accepting a permit authorization (e.g., signing a proffered
individual permit) or undertaking any activity in reliance on any form of Corps permit
authorization based on a PJD constitutes agreement that all aquatic resources in the
review area affected in any way by that activity will be treated as jurisdictional, and
waives any challenge to such jurisdiction in any administrative or judicial compliance
or enforcement action, or in any administrative appeal or in any Federal court; and (7)
whether the applicant elects to use either an AJD or a PJD, the JD will be processed
as soon as practicable. Further, an AJD, a proffered individual permit (and all terms
and conditions contained therein), or individual permit denial can be administratively
appealed pursuant to 33 C.F.R. Part 331. If, during an administrative appeal, it
becomes appropriate to make an official determination whether geographic
jurisdiction exists over aquatic resources in the review area, or to provide an official
delineation of jurisdictional aquatic resources in the review area, the Corps will
provide an AJD to accomplish that result, as soon as is practicable. This PJD finds
that there "may be"waters of the U.S. and/or that there "may be" navigable waters of
the U.S. on the subject review area, and identifies all aquatic features in the review
area that could be affected by the proposed activity, based on the following
information:
SUPPORTING DATA. Data reviewed for PJD (check all that apply)
Checked items should be included in subject file. Appropriately reference sources
below where indicated for all checked items:
• Maps, plans, plots or plat submitted by or on behalf of the PJD requestor:
Map: Topographic map, existing site conditions
❑ Data sheets prepared/submitted by or on behalf of the PJD requestor.
n Office concurs with data sheets/delineation report.
n Office does not concur with data sheets/delineation report. Rationale:
❑ Data sheets prepared by the Corps:
❑ Corps navigable waters' study:
■❑ U.S. Geological Survey Hydrologic Atlas: 06010105-0204 Upper Little River
❑ USGS NHD data.
❑ USGS 8 and 12 digit HUC maps.
• U.S. Geological Survey map(s). Cite scale & quad name: Brevard, NC
■❑ Natural Resources Conservation Service Soil Survey. Citation: Web Soil Survey
❑ National wetlands inventory map(s). Cite name:
❑ State/local wetland inventory map(s):
❑ FEMA/FIRM maps: Transylvania Co panel # 3700-9515-OOJ
❑ 100-year Floodplain Elevation is: 2230.3 .(National Geodetic Vertical Datum of 1929)
• Photographs: ❑■ Aerial (Name & Date): Google Earth - April 2018
or *Other (Name & Date): drone photos, Sept 2019
n Previous determination(s). File no. and date of response letter:
n Other information (please specify):
IMPORTANT NOTE: The information recorded on this form has not necessarily
been verified by the Corps and should not be relied upon for later jurisdictional
determi nations.
Signature and date of
Regulatory staff member
completing PJD
Gerald Digitally signed by Gerald Pottem
r n o}to rr� Date: 2021.05.18 09:11:40-04'00'
Signature and date of
person requesting PJD
(REQUIRED, unless obtaining
the signature is impracticable)'
Districts may establish timeframes for requestor to return signed PJD forms. If the requestor does not respond
within the established time frame, the district may presume concurrence and no additional follow up is
necessary prior to finalizing an action.
AGENT AUTHORIZATION FORM for Section 404-401 Permitting
PROPERTY LEGAL DESCRIPTION: Cascade Lake Dam, Cascade Power Company
LOT NO. PLAN NO. PARCEL ID: 9515-61-1020
STREET ADDRESS: Cascade Lake Road, 6 miles north of Cedar Mountain. NC
Please print:
Property Owner 1: Cascade Power Company
Property Owner 2:
The undersigned, registered property owners of the above noted property, do hereby authorize
Gerald Pottern & Richard Mogensen of Mogensen Mitigation Inc (MMI)
(Contractor / Agent) (Name of consulting firm)
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this
permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
1016 Rosewood Dr NE, Atlanta, GA 30306
Telephone: (770) 329-1506
We hereby certify the above information submitted in this application is true and accurate to the best of
our knowledge.
Lisa Pickelsimer, President
Print Name 1 Print Name 2
Authorized Signature 1
Authorized Signature 2
Date: 9/ /2/ Date:
PDJ and PCN Support Figures -- Cascade Lake Dam Repair -- Transylvania County NC
Figure 1. Cascade Lake Dam project vicinity map, Brevard NC -- USGS Topographic Quadrangle map
Figure 2. Cascade Lake Dam, Brevard NC -- Tax parcel map
Figure 3. Cascade Lake Dam, Brevard NC -- USDA Web Soil Survey map of Transylvania County, 1994
Figure 4. Potential jurisdictional waters in the JD Review Area
Figure 5. Dam Photo and elevation profile of Little River below Cascade Lake Dam
Figure 6. Cross-section profile through Cascade Lake Dam with proposed anchors.
Figure 7. FEMA Flood Risk Information System (FRIS) Map
Figure 8. USGS Watershed Map -- French Broad River HUCs # 06010105-0204, 0205, 0206.
Figure 9. Proposed impacts to jurisdictional waters, Cascade Lake Dam repairs.
Figure 10. Google Earth aerial photo of Cascade Lake Dam, March 2022.
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Quadrangle: Brevard NC '.
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Figure 1. Cascade Lake Dam project vicinity map, Brevard NC -- USGS Topographic Quadrangle map.
PIN 9515-61-1020
Cascade Power Co.
Figure 2. Cascade Lake Dam, Brevard NC -- Tax parcel map.
USDA-NRCS Web .Soil Survey, Transylvania County
AeE = Chestnut-Edneyville complex, 15 to 30 % Slopes, stony
AeF = Chestnut-Edneyville complex, 30 to 50 % slopes, stony
AhG, = Ache -Chestnut complex, 50 to 95 % Slopes, very rocky
ChE = Evard loam, 15 to 30 96 slopes, stony
Figure 3. Cascade Lake Dam, Brevard NC -- USDA Web Soil Survey map of Transylvania County, 1994.
PJD review area boundary t y
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'h. erxArcrt1
Low Spillway _ p i •
elev = 2225.0 ft 1 0 i J 1
1
1
A
1
Ir
17.
DOE CF.713.
40 feet
41
4
MRRO KEE.3.1E
VOLT
M.
E B 84dBM
EL: SLaM 1
EXET11Y{ TOFCGRAPIM AID LO_'ATEM9OFSRE Mai.. ORE E*BEDONA BIA.EV EY MOLL ABEYY_'aTE .PA DATED FEBRLARYIQ -__
Feature B
STREAM - Little River +
Perennial, 100 ft ave width ` '
below Cascade Dam
GHRTETEP,L.NPET
TOG EL -.MS
Low Level Gate
(base flow outlet)
elev = 2185 ft
TAwTATE LAKE
7
E?CIBTMJC}S$ E-P Arf
1 GPS
ri
M:51 4}
C. 913X3y8
EL tiSe.
EDGE Di •MTER +�
1
1
1
1 ..
1
•
High Spillway
elev = 2226,5 ft '
Feature A
OPEN WATERS - Cascade Lake
Normal Pool elev = 2225 ft
PRELIMINARY JURISDICTIONAL DETERMINATION MAP
WATERS OF THE US -- CASCADE LAKE DAM
Figure 4. Potential jurisdictional waters in the JD Review Area: Open waters (Cascade Lake pool) and stream (Little River). Preliminary jurisdictional
determination and mapping by Gerald Pottern, Mogensen Mitigation Inc.
2226 ft
2200 ft
2175 ft
2150 ft
2125 ft
2091 ft
2225 ft Lake normal pool
2185 ft Low-level Drain gate
2162 ft toe of dam
farthest upstream mussel records
epprox 1500 ft below dam (per AL)
Little River Bed Profile below Cascade Lake
Cascade Road bridge
2200
2175
2150
2125
2100
0.0
0.$Olmi
0.71101
1.00 mi
1.25 mi
1.50 mi
1.75 mi
Figure 5. Photo and elevation profile of Little River below Cascade Lake Dam.
223
222
221
220
21
218
217
2113
211
214
213
EL2225
.
NORMAL POOL
.
PAMPET
r
HEAD
A
.
ANCHDR
.
TTTT°0
ake
penstock
pipe 6'
dram
SEDIMENT
UNEONDED
LENGTH
ANCHOR
,
` _.
low level
drain
- it
li
CONCRETE
DAM
IL
IL
1
1.
11
1.
Ii
river bed
BE CROCK
BONDED
LENGTH
ANCHOR
10
2! 3
21E47
21r0
2140
21343
212 Zi213
211
30
20
10
-10
-20
-30
-10
Figure 6. Cross-section profile through Cascade Lake Dam with proposed anchor.
NC Flood Risk information System
https:/Jfris.nc.govf fris/index.aspx
1% Base Flood elevations
Politita I Area: Transylvania County
CID: 370230
Panel: 9515 . DGwrl 000
Map Number: 3700951500J
Panel Effective Date: 1012/2009
Figure 7. FEMA Flood Risk Information System (FRIS) Map -- Cascade Lake Dam, Transylvania County.
ah Fore[
Be
a atatn
HUC# 06010105-0206
French Broad River
scale: 1 : T2.
i
1J
Y r.
•
HUC 6010105�1]
Little River .l Lower Little River
} 4
0?,1
Cascade
Lake Dam
HUC# 06010105-0204 *:
Upper Little River
141
Pa tfler
Ho a�
1 � i
- ilr
•ar
Ma I tain
The
FJativonds
Forked
MPurit
Figure 8. USGS Watershed Map -- French Broad River HUCs # 06010105-0204, 0205, 0206.
1 l I 1
1
llll li Il 14 \1
Nl 1 i t
\ , 1 l N 4
1 4' 4 4 1
l ', `� it
PROPOSED LEFT ABUTMENT
�. f%
✓ J `3' �ti\N / "N
t;' . Cascade Lake Normal
-0fr f- I Pool Elev=2225ft
fi / ff
{ !
r f
/
▪ ACCESS PATH SEE NOTE S)
ll \ 4 4 l
I. Ill 41 l
1 4 l if
I. I 4
MO1
If7
f
Little River _MO1 — MOl
OHW M MO1
LITTLE
RIVER
MO1 MO1 MO1 —MO MO1
1 �^ % /
I
m Ii}''r 1 !
1 1 ,
TEMPORARY WORKING PLATFORM (SEE NOTE 4p
1
drain gate
ma:
A
..e
• .i..-
wuw• �■
■ •iarmew�•s • •
�w�■ar
■�aaawa�-
0
MCDCTCLASS 1 RIP RAP FILI
Riprap Fill in Lake
Impact 0-1 = 4&Q sq.ft
Y N i
ti
i r+ / / \ / CASCADE LAKE DAM 1 i
f" ti ' / r LOW C CxaE LwcE V' • • I
Low
/-` --4UERHEAE ELECTRIC LINE ....' / LOW
DAM LAYOUT PLAN
Figure 9. Proposed impacts to jurisdictional waters, Cascade Lake Dam repairs.
SCALE- 1'40'
1111
0 20' .0'
9
~� y
Figure 10. Google Earth aerial photo of Cascade Lake Dam, March 2022.