20180134 Ver 1_11_8_2018 Response to USACE_20181119

November 8, 2018
Technical Memorandum
To: Crystal Amschler
Project Manager
USACE, Asheville Regulatory Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
From: Jeffrey T. Brown, PE
Re: Lake Tahoma
Lake Tahoma Dredge
Brown PA job no. 17017
Dear Ms. Amschler:
Please find the following informafion as a response to your informafion package; noting the
following items:
1. Answer to the three questions in the Attached USACE Letter dated April 30.
1. Of the four spoil areas, please indicate which ones will be used , or in what
or each• one will be used to dispose of dredged spoil. Additionally, please
provide an estimate of the capacity of each spoil area.
Please refer to the attached Map: Please note the order of use of each disposal site
• Area 4: approx. 272,424 ft2 will be used for Buck Creek Disposal Area. It
is estimated that approx. 243,000 fat of dredge material will placed here.
• Area 3: approx. 97,990 ft2 will be used for Litt
le Buck Creek Disposal Area.
It is estimated that approx. 81,000 ft3 of dredge material will be placed here.
Area 2: approx. 26,851 ft2 of disposal area available. This area is the first
alternate site; being held in reserve for overflow dredge material.
Area 1: approx. 40,400 ft
2 of disposal area available. This area is reserved
as the second (and) final area reserved for overflow dredge material.
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214> www.brownpa.net

2. Please indicate how the water will be lowered in the lake, if at all, to complete
the proposed work.
The water will be lowered using the penstock, to an elevation approx. maximum
13.5 ft. At this lake level the penstock flows an average of 103 CFS which is approx.
66.6 mgd.
3. Please provide a planting and permanentstabilization plan for the access areas
at Buck Creek Rd and temporary road and access area at Little Buck Creek
Please see the attached Planting/ Permanent stabilizationplanfgr the access at Buck
and Little Buck Creek: along with the following:
• Buck Creek: The access to Buck Creek along hwy. 80 is in an existing grass
field, there will be no "access" road constructed, however it is noted on the
"plan sheet" that once work is completed , any area disturbed will be
returned to its initial condition.
• Little Buck Creek: The access to Little Buck Creek is along an existing
access road that was previously constructed. The only disturbance will be
to remove any underbrush for equipment, and the temporary access bridge
over Little Buck will be placed over the creek — only during the period when
work is occurring. Once work is completed the bridge will be removed, and
any areas disturbed will be returned to their initial condition, with the
appropriate grassing/ covering per the attached specifications.
2. Please find the attached Responses to the agency comments.

DEPARTMENT OF THE ARMY
i WILMINGTON DISTRICT, CORPS OF ENGINEERS
151 PATTON AVENUE
ROOM 208
ASHEVILLE, NORTH CAROLINA 28801-5006
April 30, 2018
Regulatory Division
Action ID No.: SAW -1997-02095
Dr. Richard Smith
Lake Tahoma, Incorporated
1219 Fallston Road
Shelby, North Carolina 28150
Deaz Dr. Smith:
Reference your October 11, 2017 application for Department of the Army (DA) authorization
for the dredge and discharge of fill material into Lake Tahoma, an impoundment of Buck Creek
for the Lake Tahoma Dredge Project located north of Hwy 80, approximately 0.6 miles
northwest of the intersection of Hwy 80 with Toms Creek Road, northwest of Marion, in
McDowell County, North Carolina.
The purpose of this letter is to provide comments from resource agencies and the general
public for rebuttal purposes as a part of the individual permit review. After review of your
proposal, we have received comments from the National Oceanic and Atmospheric
Administration, National Marine Fisheries Service (NOAA's NMFS) (dated January 29, 2018),
the City of Marion, City Manager (dated January 29, 2018), the North Carolina Department of
Natural and Cultural Resources, State Historic Preservation Office (NC SHPO) (dated February
16, 2018), the North Carolina Wildlife Resources Commission (dated February 20, 2018), the
US Fish and Wildlife Service (dated February 22, 2018) and North Carolina Department of
Environmental Quality, Division of Water Resources (NCDEQ, DWR) (dated February 26,
2018), Our administrative process provides you the opportunity to propose a resolution and/or
rebut any and all objections before a final decision is made. In this regard, please review the
enclosed comments, address as appropriate and copy this office on all of your
comments/responses for our review.
According to your October 11, 2017 application "The project purpose of the proposed
dredging at Lalce Tahoma is to remove excessive sediment deposition from Buck Creek and
Little Buck Creek as they enter the lake, and to remove sediment accumulation from two areas
within the lake." After review of the information and discussion with you, we have determined
that the project purpose is to remove accumulated sediment from Lake Tahoma and perform
maintenance on the two existing sediment retention areas.

-2 -
The following information is required to complete the permit evaluation:
1) Of the four spoil areas, please indicate which ones will be used, or in what order each one
will be used to dispose of dredged spoil. Additionally, please provide an estimate of the
capacity of each spoil area.
2) Please indicate how the water will be lowered in the lake, if at all, to complete the
proposed work.
3) Please provide a planting and permanent stabilization plan for the access areas at Buck
Creek Rd and temporary road and access area at Little Buck Creek.
Please additionally be aware that a jurisdictional determination has not been issued at this
time, and additional site inspections to gather information may be required before the wetland
and stream delineation can be verified.
This information is essential to our expeditious processing of your application. Also, a copy
of this information must be sent to the North Carolina Division of Environmental Management to
enable themto adequately evaluate your application for a Water Quality Certification pursuant to
Section 401 of the Clean Water Act.
If you have any questions regarding this request please do not hesitate to contact me at
telephone [phone], ext. 4231.
Sincerely,
Crystal Amschler
Project Manager
Asheville Regulatory Field Office
Enclosures
cc:
Mr. Jeffrey Brown
Brown Consultants, PA
30 Ben Lippen School Road, Suite 202
Asheville, North Carolina 28806

-3-
Mr. Todd Bowers
USEPA— Region 4
Wetlands Regulatory Section
Sam Nunn Atlanta Federal Center
61 Forsyth Street, SW
Atlanta, Georgia 30303-8960
Ms. Sue Homewood
Division of Water Resources
Winston Salem Regional Office
450 W. Hanes Mill Rd, Suite 300
Winston Salem, North Carolina 27105
Ms. Karen Higgins
North Carolina Department of
Environmental Quality
Division of Water Resources
Marl service center
1650 Mail Service Center,
Raleigh, North Carolina 27699-1650
Ms. Andrea Leslie
North Carolina Wildlife Resources Commission
1721 Mail Service Center
Raleigh, North Carolina 27699
Mr. Byron Hamstead
US Fish and Wildlife Service
Asheville Ecological Services Field Office
160 Ziilicoa St., Suite B
Asheville, North Carolina 28801

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LAKE�T TpHOMq�
Latitude - 35°43'22.26" NJ , � I �I
Longitude - 82°05'36.555" W
Lal
30 Ben Lippen School rd., Suite 202 Dredge Pert
L' Asheville, NC 28806
Tel.' 828.350.7683
,r

SECTION 02930
GRASSING
1.1 DEFINITION
A. A temporary cover with fast growing seeding for up to a 12 -month period or un51 permanent
vegetation is established.
B. A permanent vegetative cover using grasses, trees, or shrubs.
1.2 PURPOSE
A. Reduce runoff, erosion, and sedimentation
B. Improve aesthetics
C. Improve tilth and organic matter
D. Reduce downstream complaints
E. Reduce likelihood of legal action
F. Reduce likelihood of work stoppage due to legal action
G. Increase "good neighbor" benefits
1.3 INSTALLATION
A.
Install all erosion control measures prior to applying temporary vegetation.
B.
Grading and shaping are not required if slopes can be planted with a hydro -seeder or by hand
seeding for temporary vegetation.
C.
Use conventional planting methods, if possible.
D.
Apply according to approved plan.
E.
Check the tag on the bag of seed to verify type and germination of the seed to be planted and the
date of the test.
F.
Scarify, pit or trench sealed or crusted soil.
G.
Temporary seeding, fertilize low fertility soils by adding and mixing into soil prior to planting at the
rate of 500-700 lb/ac. of 10-10-10 fertilizer or equivalent. Permanent seeding, fertilize based on soil
tests or as shown in permanent seeding table.
H.
Apply agricultural lime as prescribed by soil tests or at a rate of 1 to 2 tons per acre.
I.
Apply seed by hand, cyclone seeder, drill or hydro -seeder. Seed planted with a drill should be
planted 1/2"-1" deep.
J.
Irrigation should be used to supplement rainfall, but not to the extent to cause erosion.
1.4 MAINTENANCE
A.
Re -seed areas where an adequate stand of temporary or permanent vegetation fails to emerge or
where a poor stand exists.
B.
Apply fertilizer in late fall and early spring as required.
C.
Apply one ton of agricultural lime as indicated by soil test or every 4-6 years.
GRASSING
172930 - 1

D. Mow as desired; however mow Sericea Lespedeza only after frost to ensure seed are mature.
E. Maintain 6" or more of top growth.
1.5 NOTES
(Temporary Seeding)
A. Seeding dates may need to be altered to fit temperature variations and location conditions.
B. Unusual site conditions may require heavier seeding rates.
C. Seeding for January and February follow NCDENR recommendations.
D. Use "mulching" where no temporary vegetation is available.
E. Mulch: 25 tons of hay or straw per acre (if necessary).
(Permanent Seeding)
F. Critical Area: disturbed land that is either highly eroded or highly erodible. Typically adjacent to
natural areas, less formal and having lower maintenance requirements than grassed lawn areas.
(Examples: cut or fill slopes, earth spillways, borrow areas, channel banks, berms, roadsides, spoil
areas, gullied lands, etc.)
G. Grading and shaping required where feasible and practical.
H. Ground preparation: not required where hydraulic seeding and fertilizing equipment is to be used
with conventional seeding. No -till seeding, VV equipment, V into annual
cover crops if the planting is done after the cover crop has matured or if the temporary cover stand
is sparse enough to allow adequate growth of the permanent species.
Sloe
samples from several areas
on site for efficient chemical application and
Seed bed
3:1
or flatter slo a
4"-6"
de th
3:1
to 2:1 sloe
V-4" depth
2:1
or steeper sloe
Hand tooled pits or trenches, 6" to 8" apart
I. Take soil
samples from several areas
on site for efficient chemical application and
optimum plant
health, in
the absence of soil analysis
reports, apply agricultural lime at the rate of
1 to 2 tons per
acre. A maintenance
application of 1 ton of agricultural lime is required every 4 to 6 years.
J. Mulch is required on
all slopes
steeper than 3 percent, in
the bottom of spillways, on
road banks,
and when seeding is
done too
late in the fall or winter for
germination to be expected
before spring.
Material
K. Soil retention blankets, erosion control nett
Seed bed
D straw
2 tons er acre
Dry ha
2-2.5 tons peracre
Wood cellulose or wood pulp
fiber
0.5 tons per acre (when slope = 0.75:1)
Sericea lespedeza hay (with
mature seed
3 tons per acre
Pine straw or bark
Equivalent to 3" depth
ing, other manufacture materials or block sod may be
required in addition to mulch on unstable soils and concentrated flow areas.
L. Anchor straw or hay mulch immediately after application with one of the following methods:
1. Spray with emulsified asphalt
2. Press into the soil with a roller, packer disk, etc.
3. Apply synthetic tackifiers or binders
GRASSING
02930 - 2

4. Add rye or wheat seed to fall and winter plantings
5. Install 1'x1" mesh netting
M. Wood cellulose and wood fiber mulch is self -anchor ng:
N. Seeding Schedules
Permanent Seedin schedule
Temnorary
Dates
Seeding mixture
Rate
(Ib/acre)
Fertilizer type
& rate
Recommended
planting dates
Nurse
plants
required
slopes stee erthan3:1
-Steep
Average soils
Tall Fescue
100
5-10- @
5-1010
101000 @
July 15 -Sept 15
Mar 1 -May 15
Yes
Sericea Les edeza
120
Korean Lespedeza
10
Redto
5
Kentucky Bluegrass
5
Rocky, rough,
& dry soils
Tall Fescue
40
5-10-10 @
1000 Ib/ac.
July 15 -Sept 15
Mar 1 -May 15
Yes
Crown Vetch
10
Korean Les edeza
10
Redtop
5
Gentle slopes (3:1 or less)
Average sails
Tall Fescue blend
(equal parts of two
or more turf -type
tall fescues
200-250
10-10-10 @
1000 Ib/ac.
July 15 -Sept 15
Mar 1 -May 15
No
Rocky, rough,
&dry soils
Tall Fescue
40
5-10-10 @
1000 Ib/ac.
July 15 -Sept 15
Mar 1 -May 15
Yes
Crown Vetch
10
Korean
Les edeza
10
Redtop
5
Grass -lined channels
Tall Fescue blend
175-200
10-10-10 @
1200 Ib/ac.
July 15 -Sept 15
Mar 1 -May 15
Yes
Kentuck Blue rass
20
Seedin Schedule
Dates
Seedin mixture
Rate Ib/ac.
Feb. 1 — May 15
Rye Grain
120
Annuall-espedeza
50
May
15—Aug. 15
German Millet
40
Aug. 15
— Dec. 31
Rye Grain
120
Nurse plants:
a. Between
May 1
and Aug.
15, Add 10 Ib/ac. German Millet
b. Prior to May 1, add 40 Ib/ac. Rye (grain)
END OF SECTION
GRASSING
02930 - 3

V,LUtJAL IFF IIUNING SYSTEM CERTIFICATION (OPUS -RS) Lm RudK
... 'cREEk'RD.'.'.'.'.
THE INITIAL POSITIONS FOR THIS PROJECT WERE PRODUCED FROM RAPID -STATIC GPS . I 4 1 1 1 1 . 1 4 1 1 1
OBSERVATIONS(MIN. 16 MINUTE SESSIONS) UTILIZING SPECTRA PRECISION EPOCH 35 GNSS SHEET MATCHLINE SHEET
DUAL FREQUENCY RECEIVERS AND WERE COMPUTED BY NGS UTILIZING THE ONLINE LANE,TAHOMA
POSITIONING USER SERVICE -RAPID STATIC (OPUS -RS) AND ARE RELATIVE TO THE SHEET 1 4
LS TP #4 -60D NAIL SHEET 1
FOLLOWING NGS CORS BASE STATIONS.4,522.69' NAD 83/96
BASE STATIONS USED
1 2,062.49' NAD 83196
, , r �
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DE8230 MARI MARION CORS ARP 14353913.385 W0815716.172 14992.3 p0 �� .�0� �P� ICIVITY MAP: o
DG5311 NCSW SWANNANOA CORS ARE N353546.038 W0822524.230 33330.0 �: /1 Q /
DH7137 NCMG MORGANTON CORS ARP 14354227.073 W0813923.999 39528 4 A N,T 5
DG7400 NCMA MARSHALL CORS ARP N354847.313 W0824122.673 54793.7 1 IF
"\ CC ��� / p ( ) NwY 70
DF4365 ASUB ASU-BOONE CORS ARP N361250.844 W0814054.648 65446.8 '. �A l v �� �O� / " I D16,
DM3523 NCHI HICKORY CORS ARP N354431.010 W0811830.935 70960.1 �j //
AJ5575 CONIC CONOVER CORS ARP N354209.468 W0811400.901 77799.4
DL2082 NCWJ W. JEFFERSON CORS ARP N362334,946 W0812842.269 92246.7 \p�V��Qo3 O
IF IF
�V� 3 CPW COPS ARP N345615 688 W0821357,269 88612,5 j0o2p09 p� V / o
REF FRAME: NAD83 (CORS96) (EPOCH:2002.0000) pOp �G' 0-'z' /
DATE: JANUARY 21, 2011FV PP JET �E� GO IF (D .
POSITIONAL ACCURACY: 0.04'(HORIZONTAL)0.19'(VERnCAL) TIME 21.1616 UTC6P'SFP �G.�pOO�PQg. \ /
ELEVATIONS ARE NAVD 1968 (GEOID MODEL=GEOID09) �Q �GF�' J� ^� / Q
COMBINED GRID FACTOR = 0.99984460. „nl.. K C \ r1p\� /�IF
U
UNITS ARE IN U.S. SURVEY FEET UNLESS OTHERWISE NOTED. W"
•
D IT s. 2F �f
IF
NOTES ��
ti, \
1. THIS IS NOT A REAL ESTATE BOUNDARY SURVEY. � � 3; T Z
2. THIS PROPERTY IS SUBJECT TO ANY EASEMENTS (WRrr rEN OR UNWRITTEN). r31 `
f A
3. THIS PROPERTY IS SUBJECT TO THE FULL RIGHT OF WAY WIDTH OF NO HIGHWAY 80. � � �.:
KE TAIIOMA
4, AREA SHOWN HEREON WAS COMPUBY THE COORDINATE METHOD.
TED cc
5, ALL DISTANCES/COORDS. SHOWN HEREON ARE HORIZONTAL GRID�ry9 �p .Z
DISTANCES/CGORDS. WETLANDS AREA 9.f, OmW.
6, SEE SHEET 2 FOR LINE TABLE CALLS. 1 .113 ACRES Q
�g 483468.8 SQ, FT. WOLF TP #1 IF s/e" RE R I \� 2 C7
(Li THRU L44
*INCLUDES OPEN WITH I.D. CAP ZOO'/�� Z
TYPE AS NOTED) �2) - WATER AREA" \ E: 1,082 225.30' NN: 734,219.601 DAD 8 6 - eR70
G \ J
C2s
IF .-11 4 ... I I.. IF\\ PPS
�S S^ ��
_TNG �9 �' <27 "" a .�-
�z2 'NM' ... ...
Brown Consultants, PA DS BOUNDARY ` IF /
..................... _ .. 1111.. 1111.. o... .. ..
)NE AE LIMITS /
.. .. ...,....... -.-. ... .. 1111 ... .
.. 1111 .. a. 1111.. 1111 1111
... ..1414 1111.. ......... 1111.. p. .. .. 1111..
30 Ben Lippen School Road ` y 1111. m . /
IF IF I
WATER "�\ IF F� I CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
Asheville, NC 28806 E LINE (APPROX.) \ I . - - + SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER MY
CELINE `� 1 (OPEN WATER) SUPERVISION AND THAT THIS MAP MEETS THE
[phone] ::"
^URATELY DEPICTS THE - R )
REQUIREMENTS OF THE STANDARDS OF PRACTICE FOR
F - -O- VATION LINE PER LAND SURVEYING IN NORTH CAROLINA (21 NCAC 56.1600 .
(rs ` IR 0.S710078300J
= THE CLEAN WATER ACT N. ' MY ORIGINAL SIGNATURE, REGISTRATION NUMBER AND
Planting/ Permanent Stabilization Plan m cTIVE 10-2-2006 SEAL THIS 17th DAY OF MAY, A.D., 2011.
UNLESS THERE ISA <� '.'.'�' '
IS, THIS DETERMINATION S AL LINE TAKEN FROM
�R A PERIOD NOT TO L7q L`3 <72 ......... .' W.NCFLOODMAPSOOM) PRELIMINARY - FOR REVIEW
"�I WAS MADE JOHN WESLEY COLE, P.L.S. L-4561
IF
The area highlighted in green and within the project boundary is a grassed area(previously planted by
Lake Tahoma). Care should be taken during the project to minimize damage to the area; however, it is taT�� WETLANDS BOUNDARY SURVEY FOR:
understood dredging work will occur as well as dredging equipment. 0 1 �6
7 o a3°°a
Care and proper erosion control devices (silt fences if req 'd or deemed necessar b the En Engineer) Ls �O�N° 310 ZZ�F�Oo
y y g ) __ L4 ZONEAE sFE� TVIJP� E �P�EPS� _1 LAKE TAHOMA, INC.
should be considered during the work as to not allow any erosion to occur and drain back to Buck Creek. `_ zonEx FIP EFF `�'oP 0 1%V�'�
�.(P\o�GF\- BUCK CREEK SITE
Care and proper planting and final grassing, stabilization should be performed immediate after N 0 �' �� i1� SHEET 1 OF 2
completion of work in the project area; following the Grassing Specification 02930 and direction by the 0' 60' 120' 180'
Engineer. • tom SCALE: 1";;;60' PROJECT #:11-001 DATE 5/17/11
400 MARION TOWNSHIP, McDOWELL COUNTY, NO
ol PPee1F1Wr1b4 VZa0o

LEGEND: \
O CALCULATED POINT BASE FLOOD ELEVATION LINE PER 1 .gyp
FIRM MAP NO. 3710078300)
A WOES TRAVERSE POINT (TYPE AS NOTED) EFFECTIVE 10-2-2008 1
APPLE SAPLING (TYPICAL LINE TAKEN FROM \
WWW.NCFLOODMAPS.COM) /
CRABAPPLE SAPLING ..
DOGWOOD SAPLING /
HOLLY SAPLING _ 1
MAPLE 2"
REDBUD DOGWOOD SAPLING
SILVER MAPLE SAPLING
WETLANDS BOUNDARY
FEMA ZONE AE LIMITS
TIE LINE
EDGE OF WATER
FEMA BEE LINE (APPROX.)
SILT FENCELINE ♦♦
GLOBAL POSITIONING SYSTEM CERTIFICATION (OPUS -RS) O\2F BUCK CREEK
THE INITIAL POSTIONS FOR THIS OBSERVATIONS MIN 15 MINUTE SESSIONS) JECT WERE
SPECTRA PRECISION EPOCH 35GNSS 2�'F♦\ DREDGE SITE
DUAL FREQUENCY RECEIVERS AND WERE COMPUTED BY NGS UTILIZING THE ONLINE 73,350 SQ. F�f
POSITIONING USER SERVICE -RAPID STATIC (OPUS -RS) AND ARE RELATIVE TO THE ,
FOLLOWING NGS CORS BASE STA TONS. ,
BASE STATIONS USED \ (1 .7 AC)
PID DESIGNATION LATITUDE LONGITUDE DISTANCE(m)
DES230 MARI MARION CORS ARP N353913.385 W0815716.172 14992.3
DGE311 NCSW SWANNANOA CORS ARP N353546.038 W0822524.230 33330.0 1
DH7137 NCMG MORGANTON CORS ARE N364227 073 W0813923.999 39528.4
DG7400 NCMA MARSHALL CORS ARP N354847.313 W0824122.673 54793.7 ,
DF4365 ASUB ASU-BOONE CORS ARE N361250.844 W0814054.648 654468 1
DM3523 NCHI HICKORY CORS ARP N354431.010 W0811830 935 70960.1
AJ5575 COLO CONOVER CORS ARP N354209.468 W0811400.901 77799.4
DH3755 SCGP GREER CPW CORS ARP N345615.688 W0821357.269 88612.5 WCL
DL2082 NCWJ W. JEFFERSON CORS ARP N362334.948 W0812842269 92246.7 1 IN: 73
REF FRAMES NAD83 (CORS96) (EPOCH:20020000) \ E: 1,(
DATE: JANUARY 21,2011
TME: 21:16181ITC
IZONTAL) 0.19' (VERTICAL)
MODEL=GEOID09)
460.
LESS OTHERWISE NOTED.
FEMA ZONE AE LIMITS PER \♦
FIRM MAP NO. 3710078300J /
EFFECTIVE 10-2-2008 /
(Tl`PICAL LINE TAKEN FROM
WWW.NCFLOODMAPSCOM) /
I
' OF THIS PLAT ACCURATELY DEPICTS THE
iN OF SECTION 404 OF THE CLEAN WATER ACT
;SIGNED ON THIS DATE. UNLESS THERE IS A
BYOWri COIlBU1tariY5, PA OBLISHED REGULATIONS, THIS DETERMINATION
MAY BE RELIED UPON FOR A PERIOD NOT TO
DATE. THIS DETERMINATION WAS MADE
30 Ben Lippen School Road INGINEERS WETLANDS DELINEATION MANUAL.
Asheville, NC 28806
[phone]
WES COLE LAND SURVEYING, PA
41 CLAYTON STREET ASHEVILLE, NC 28801
OFFICE: 828.251.7025 • WWW.WESCOLESURVEYING.COM
NC FIRM #C-3106 • SC COA #4052
NC L-4561 • SC 27443 • TN 2432
SHEET 2
SHEET 1
CREEK RD.
PRELIMINARY 0
'PROGRESS DRA I/ TNG * �F VICINITY MAP 0o
NOT FOR SUBMITTAL, NTS) DS.HWY.
RECORDATION, OR CONVEYANCES
LINE
BEARING
DISTANCE
DISTANCE
Li
S
73°17'42"
W
80.84'
N
L2
S
47°43'17"
W
33.30'
41 °36'27" W
L3
S
83°22'09"
W
44.73'
24.32'
L4
S
81047'4811
W
43.51'
LS
S
64°19'02"
W
36.22'
L29
L6
N
63°20'53"
W
18,97'
N76"10'41"E
L7
N0426'31"W
L31
33.85'
55022'24" E
L8
N
11 °25'58"
W
21.997
29.59'
L9
N
87050'42"
E
40.69'
L10
N
1004425"
E
12.15'
L35
S
L11
N
51018'46"
W
19.23'
L12
N
62058'25"
W
24.88'
38.33'
L13
'S
76020'38"
W
25.10'
L14
N
81 007'47"
W
15.41'
L40
L15
N
45035'29"
W
.24.90'
S
L16
N
50°16'57"
W
28.61'
54°20'41 " E
L7 7
N
13055'23"
W
30.92'
64.54'
Ll8
N
00°36'20"
W
27.99'
L19
N
54°19'32"
E
11.53'
L20
N
73°1629"
E
19.68'
L21
S
5303222"
E
25.94'
L22
S
73°37'28"
E
33.96'
♦
N ♦
m
\� N� WCLS TP #1 -6/a" REBAR
ITH I.D. CAP
734,219.60' NAD 83196
,0821225.30' NAD 83/96 SHEET 2
MATC H LI N E
SHEET 1
ry
NOTES
1. THIS IS NOTA RE ESTATE BOUNDARY SURVEY �. L��
2 THIS PROPERN SUBJECT TO ANY EASEMENTS (WRITTEN OR UNWRfYTEN).
3. THIS PROPER IS SUBJECT TO THE FULL RIGHT OF WAY WIDTH OF NC HIGHWAY 80.
4. AREA SHOW EREON WAS COMPUTED BY THE COORDINATE METHOD.
5. ALL DISTAN S/COORDS. SHOWN HEREON ARE HORIZONTAL GRID
DISTANC COORDS.
6. LINE TAB CALLS PERTAIN TO WETLANDS BOUNDARY SHOWN ON SHEET 1.
LINE
BEARING
DISTANCE
L23
N
2400023" E
13.11'
McDOWELL
L24
N
06057112" W
19.85'
L25
N
41 °36'27" W
41.46
L26
N
58034'26" W
24.32'
L27
N
53004'20" W
44.39'
L28
N
61032'20" W
28.82'
L29
N
62016'38" E
37.19'
L30
N76"10'41"E
35.83'
L31
N
55022'24" E
17.20'
L32
N
36°07'00" E
29.59'
L33
N
26057'36" E
23.88'
L34
S
41005'28" E
22.66'
L35
S
15°17'36" E
76.95--
6.99'
L36
S
S30°14'48"E
62.00'
L37
S
31 °39'59" E
38.33'
L38
S
37012'12" E
47.40'
L39
S
66°5728" E
8.70'
L40
S
23°26'23" E
11.51'
L41
S
44°36'16" E
24.37'
L42
S
54°20'41 " E
27.31'
L43.
S
63°36'19" E
64.54'
L44
S
57°29'24" E
20.13'
I CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
SUPERVISION FROM AN ACTUAL SURVEYMADE UNDER MY
SUPERVISION AND THAT THIS MAP MEETS THE
REQUIREMENTS OF THE STANDARDS OF PRACTICE FOR
LAND SURVEYING IN NORTH CAROLINA (21 NCAC 56.1600).
MYORIGINAL SIGNATURE, REGISTRATION NUMBER AND
SEAL THIS 17th DAY OF MAY, A.D., 2011.
r11ELIMINARY - FOR REVIEW
DULL)
WETLANDS BOUNDARY SURVEY FOR:
L-46ti1
LAKE TANOMA, INC.
BUCK CREEK SITE
SHEET 2 OF 2
SCALE: 1"=80'
PROJECT
#: 11-001
DATE:
5/17/11
MARION
TOWNSHIP,
McDOWELL
COUNTY.
NC

SHEET 2
SHEET 1
CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER
SUPERVISION AND THAT THIS MAP MEETS THE
REQUIREMENTS OF THE STANDARDS OF PRACTICE FOR
LAND SURVEYING IN NORTH CAROLINA (21 NCAC 56.16(
MY ORIGINAL SIGNATURE, REGISTRATION NUMBER AND
SEAL THIS 17th DAY OF MAY, A.D., 2011.
PRELIMINARY -- FOR REVIEW
JOHN WESLEY COLE,
M
NOTES
1. THIS IS NOT AREAL ESTATE BOUNDARY SURVEY.
2. THIS PROPERTY IS SUBJECTTO ANY EASEMENTS (WRITTEN OR UNWRITTEN). WETLANDS AREF
3. THIS PROPERTY IS SUBJECTTO THE FULL RIGHT OF WAY WIDTH OF LAKESHORE DRIVE. 0.342 ACRES
4. AREA SHOWN HEREON WAS COMPUTED BY THE COORDINATE METHOD. 143888.4 SQ. FT
5. ALL DISTANCES/COORDS. SHOWN HEREON ARE HORIZONTAL GRID (1-1 THRU L28)
6. SEE SHEET 3 FOR LINE TABLE CALLS.
LEGEND:
O CALCULATED POINT
WCLS TRAVERSE POINT (TYPE AS NOTED)
WETLANDS BOUNDARY
FEMA ZONE AE LIMITS
TIE LINE
EDGE OF WATER
I, BFE LINE (APPROX.)
nIHEAD UTILITY LINE
I SYSTEM CERTIFICATION (RTK)
0 P -g
P-10� 9 P-8 0 P-7
L7
ACCURACY OF THE RTK DERIVED POSITIONAL
ZONTAL & 0.03' VERTICAL.
tE REFERENCED TO NAD 83 (NSRS 2007)
IEFERENCED TO NAVD 88 (GEOID 09)
153
�1d
Brown Consultants, PA � PRECISION EPOCH 35 -GLASS DUAL FREQUENCY RECEIVER
30 Ben Lippen SChool Road OPY OF THIS PLAT ACCURATELY DEPICTS
Asheville, NC 28806 RISDICTION OF SECTION 404 OF THE
ERMINED BY THE UNDERSIGNED ON THIS
CHANGE IN THE LAW OR OUR PUBLISHED
[phone] ""' ^T'l,Ni nr= RECTION 404 JURISDICTION
'XCEED FIVE YEARS
Planting/ Permanent Stabilization Plan ADE UTILIZING THE
`ION MANUAL.
CK
BEGINNING OF N: 736,027.32' NAD 83/07 uT CRREEKK RDS
E RD.
NI� �C ELEV.1401.5 RIPPLES IS CREEK
SHEET 2 E: 1,085,836.66' NAD 83/07
:
SHEET
WCLS TP #20 - %' REBAR
WITH I.D. CAP \i
N: 736,392.42' NAD 63/07 \
E: 1,085,605.37'NAD83/07 \\\ VICINITY MAP
I
U S. HWY.
BASE FLOOD ELEVATION LINES PER
FIRM MAP NO. 3710078300J
EFFECTIVE 10-2-2008 CO N
(TYPICAL LINE TAKEN FROM bb m T
ee WWW+NCFLOODMAPS.COM) \
LITTLE BUCK
CREEK
DREDGE SITE: L41 +
m W F16,800 SQ. FT. a a + 2
J
(0.4 AC) L3839
430'±
LINEAR WETLANDS AREA
(1-53 THRU L58)
s D
vh LWCL3 TP #21 - s/" REBAR
N WITH I.D. CAP
N: 736,027.32' NAD 83/07 `)
P-5 E: 1,085,836.66' NAD 83/07
A r
J I_
1 g3 + N 8548'07" E z
m k J 16362'(TIE) m
WETLANDS AREA 2 +
r 0.321 ACRES ro 1
P4 N 13,997.8 SQ. FT.
(129 THRU L52) Q.
2 H1
P-3 p0� FEMA ZONE AE LIMITS PER m M
fi7
u13 rW o Z FIRM MAP NO. 3710078300J -I
ZO EFFECTIVE 10-2-2008 1 [J
N 4 `' 2\NF (TYPICAL LINE TAKEN FROM '
WWW.NCFLOODMAPS.COM)
The area highlighted in green and within the project boundary is a grassed area previously planted by
Lake Tahoma). Care should be taken during the project to minimize damage to the area; however, it is
understood dredging work will occur as well as dredging equipment.
Care and proper erosion control
devices
(silt fences if
req'd
or deemed necessary by
the Engineer)
should be considered during the
work as
to not allow
any
erosion to occur and drain
back to Buck Creek.
Care and proper planting and final grassing, stabilization should be performed immediate after
completion of work in the project area; following the Grassing Specification 02930 and direction by the
Engineer.
WETLANDS BOUNDARY SURVEY FOR:
LAKE TAf10MA, INC.
LITTLE 13UCK CREEK SITE
SHEET 1 OF 3
SCALE: 1"=60'
PROJECT #: 11-001
DATE:
5/17/11
MARION
TOWNSHIP, McDOWELL
COUNTY,
NC

NOTEs
1. THIS IS NOTA REAL ESTATE BOUNDARY SURVEY.
2. THIS PROPERTY IS SUBJECT TO ANY EASEMENTS (WRITTEN OR UNWRITTEN).
3. THIS PROPERTY IS SUBJECT TO THE FULL RIGHT OF WAY WIDTH OF INC LAKESHORE DRIVE.
4. AREA SHOWN HEREON WAS COMPUTED BY THE COORDINATE METHOD.
5. ALL DISTANCES/COORDS. SHOWN HEREON ARE HORIZONTAL GRID DISTANOES/COORDS.
6. SEE SHEET 3 FOR LINE TABLE CALLS.
I CERTIFY THAT THIS MAP WAS DRAWN UNDER MY
SUPERVISION FROM AN ACTUAL SURVEY MADE UNDER MY
SUPERVISION AND THAT THIS MAP MEETS THE
REQUIREMENTS OF THE STANDARDS OF PRACTICE FOR
LAND SURVEYING IN NORTH CAROLINA (21 NCAC 56.1600).
MY ORIGINAL SIGNATURE, REGISTRATION NUMBER AND
SEAL THIS 17th DAY OF MAY, A.D., 2011.
PRELIMINARY -FOR REVIEW
JOHN WESLEY COLE, P.L.S. L-4561
GLOBAL POSITIONING SYSTEM CERTIFICATION (RTIq
THE NETWORK POSITIONAL ACCURACY OF THE RTK DERIVED POSITIONAL \
INFORMATION IS 0.03' HORIZONTAL & 0.03' VERTICAL.
HORIZONTAL POSITIONS ARE REFERENCED TO NAD 83 (NSRS 2007) \
VERTICAL POSITIONS ARE REFERENCED TO NAVD 88 (GEOID 09)
COMBINED FACTOR 0.9998453
EQUIPMENT USED: SPECTRA PRECISION EPOCH 35 GNSS DUAL FREQUENCY RECEIVER
THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS
-- -" "f T' '� 'URISDICTION OF SECTION 404 OF THE
TERMINED BY THE UNDERSIGNED ON THIS
A CHANGE IN THE LAW OR OUR PUBLISHED
RMINATION OF SECTION 404 JURISDICTION
1 A PERIOD NOT TO EXCEED FIVE YEARS
;TERMINATION WAS MADE UTILIZING THE
IS WETLANDS DELINEATION MANUAL.
Brown consultants, PA iS CQLE LAND SURVEYING, PA
30 Ben Lippen School Road 'A1 CLAYTON STREET• ASHEVILLE, NC 28801
828.251.7025• WWW.WESCOLESURVEYING.COM
Asheville, NC 28806 NC FIRM #C-3106 • SC COA #4052
NC L-4561 • SC 27443 • TN 2432
[phone]
t,t �►ss n��,
18" CMF
/BABE FLOOD ELEVATION LINE PER
IRM MAP NO. 3710078300J
EFFECTIVE 10-2-2008
TYPICAL LINE TAKEN FROM
WW. NCFLOODMAPS.COM)
LEGEND:
O CALCULATED POINT
A WCLS TRAVERSE POINT (TYPE AS NOTED)
UTILITY POLE
WETLANDS BOUNDARY
FEMA ZONE AE LIMITS
SHEET 2
sHEEr 1 MAT
PRELIMINARY
PROGRESS DR,�I WlIVG'�'" �"
NOT FSR
RECORDATION,
TIE LINE
EDGE OF WATER
FEMA BFE LINE (APPROX.)
OVERHEAD UTILITY LINE
LITTLE @UCK
CREEK RD.kSG
S�
VICINITY MAP
WCLS TP #20 - �" RLBAR
WITH I.D. CAP
N: 736,392.42' NAD 83/07
E: 1,085,605.37' NAD 83/07
NE AE LIMITS PER
P NO. 3710078300)
TIVE 10-2-2008
LINE TAKEN FROM
.NOFLOODMAPSOOM)
10
P.
RIDGE
WCLS TP 7-5/9'REBAR
. CAP
BEGINNING OF N: 736,027.32' NAD 83/07
RIPPLES IS CREEK SHEET 2 E: 1,085,836.66' NAD 83/07
ELEV.' 1401.5
SHEET
SUBMITTAL,
OIC 'CONVEYANCES
0' 60' 120' 180'
U.S. HWY70
WETLANDS BOUNDARY SURVEY FOR:
LAKE TANOMA, INC.
LITTLE
BUCK
CREEK
SITE
SHEET 2
OF 3
BCALE: 1"=60'
PROJECT #: 11 -001
DATE: 5/17/11
MARION. TOWNSHIP, McDOWELL COUNTY, NC

��.s�s� To CaMr���S

0
January 29, 2018
Uff IIF ITIARTITI—
P.O.
1'
Ie4w.. ,..aktk-Wjrw%%UA
Ms. Crystal Amschler
U.S. Army Corps of Engineers
Asheville, North Carolina Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
RE: Response to Public Notice SAW -1997-02095
Dear Ms. Amschler:
orrmu: ooxrrn
o�xv arMMVER
The City of Marion wishes to provide the following comments in response to the Public Notice
dated January 25, 2018 regarding the proposed dredging at Lake Tahoma. The City of Marion
utilizes Buck Creek as a water supply source with an .intake and pump station located
approximately two miles downstream of Lake Tahoma. We, therefore, request that any dredging
and sediment removal be conducted with the knowledge and consideration that Lake Tahoma and
Buck Creek serve as a vital water supply source to the City of Marion and other areas of McDowell
County. The City's primary questions and concerns are discussed below.
Will the flow to the regulating dam of the City's intake be reduced at any time during thw
.
project and, if so, how much? The City desires that at least 3,000,000 gallons of water per
day flow into its regulating dam.
The City would like to be assured that resultant silt, mud, and sediment will not be released
downstream into the City's intake.
Thank you for your time and consideration of the City of Marion's comments regarding the
proposed dredging project. ] would greatly appreciate the Corps addressing the City's concerns
prior to the issuance of a permit for the project. Please contact Public Works Director Brant Sikes
at 828-652-4224 or bsikesguaaritmnc.ora if you have any questions or to discuss the 'Ci ;

November 8, 2018
To: Mr. Bob Boyette
City Manager
City of Marion
Marion, NC 28752
From: Jeffrey T. Brown,
Re: Lake Tahoma
Lake Tahoma Dredge
Brown PA job no. 17017
Mr. Boyette,
Per your letter to USACE, regarding the Lake
Tahoma Dredging
Project please note the
following
responses to your comments attached:
There will be no flow reduction as a result of the project.
Sediment will not be released downstream. Both the dredging locations are near the
confluence of Buck Creek and Little Buck Creek —and upstream of existing coffer dams.
There will be ongoing visual inspections below the dam for turbidity; however, the length
of the Lake allows for any silting to settle prior to release over the dam.
I trust this answers your comments, if you have any filrther questions, please do not hesitate to call
me.
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214> www.brownpa.net

iiiiimiiii
Water Resources
Environmental Quality
February 26, 2018
Crystal Amschler
DW R# 20180134
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Ave, Room 208
Asheville, North Carolina 28801-5006
Subject Project: LakeTphoma bredge Project
Dear Ms. Amschler.
ROY COOPER
Governor
MICHAEL S. REGAN
Seentaly
LINDA CULPEPPER
Interim Director
Carps Action 1D# SAW -1997-02095
McDowell County
On behalf of the NC Division of Water Resources, we respectfulEy request that you consider the
following comments within your review ofthe 4041ndividual Permit requestforthe above
referenced property:
1. The applicant indicates that the proposed dredging project will improve fish
habitat and
reduce watertemperatures. If these statements are considered by the USAGE to be
essential to the purpose and need for this project then the Division recommends that
documentation be required to support these statements.
2. The proposed project is required to secure an approved Sediment and Erosion Control Plan
for the dredging activities, as well as all spoil locations. in addition, the projeci is subject to
the Trout Buffer as regulated by the Division of Energy and Mineral Resources,
3. The applicant should provide a detailed analysis and proposal for
protection of
downstream water quality during dredging activities.
State oFNodh Carolina I Environmental Quality
450 W. Harces Mill Road, Suite 366, WinstonSalern, North Carolina 27105
Phone:336-77fi-98061FAX:[phone]

Page 2 of 2
Thank you for your considering the Division's comments during your review of this Individual
Permit. If you have any questions, please contact me at 336-776-9693 or
[e-mail].
Sincerely,
Sue Homewood
DWR Winston-Salem Regional Office
cc: Jeffrey Brown, Brown Consultants fnc (via email)
DWR ARO
DWR— Wetlands and Buffer Permitting Branch

November 8, 2018
To: Ms. Sue Homewood
NCDEQ
DWR Winston-Salem Regional Office
450 W. Haynes Mill Road, Suite 300
Winston-Salem, NC 27105
From: Jeffrey T. Brown,
Re: Lake Tahoma
Lake Tahoma Dredge
Brown PA job no. 17017
Ms. Homewood,
Per your letter to USAGE, regazding the Lake Tahoma Dredging Project please note the following
responses to your comments attached:
1. Siltation has many effects on Lakes/ Reservoirs. Documentation is attached, referring to
Reservoir Fish Habitat Management, USGS, Leandro E. Miranda, 2017. The study
documents several topics including sedimentation, effects, and management thereof. The
entire document is not attached as it is 300 pages long.
2. Both the Tour Buffer and Erosion Control Permit are applied for through NCDEQ-ARO.
3. Sediment will not be released downstream. Both the dredging locations are near the
confluence of Buck Creek and Little Buck Creek —and upstream of existing coffer dams.
There will be ongoing visual inspections below the dam for turbidity; however, the length
of the Lake allows for any silting to settle prior to release over the dam.
I trust this answers your comments, if you have any further questions; please do not hesitate to call
me.
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214> www.brownpa.net

Reservoir
Fish it Management
Leandro E. (Steve) Miranda
U.S. Geological Survey
Mississippi Cooperative Fish and Wildlife Research Unit
Department of Wildlife, Fisheries, and Aquaculture,
Mississippi State University, P.O. Box 9691,
Mississippi State, MS 39762
Reservoir Fisheries Habitat Partnership
2017

Reservoir
Fish Habitat Management
a project of the
RESERVOIR
FISHERIES
HABITAT
PARTNERSHIP
Suggested citation
Miranda, L.E. 2017. Reservoir fish habitat management. Lightning Press, Totowa,
New Jersey. 306 pp.
ISBN 978-0-692-79572-0

Contents
iii
Preface......................................................................................................
xi
Introduction.............................................................................................1
1 Sources of Reservoir Fish Habitat Problems .................................
3
1.1 Introduction.,. I.., ................ ...................... ......... ....... .............. 4 ................
3
1.2 A Nationwide Habitat Degradation Survey ..............,.........,........................ ,
...........
3
1.3 Geographical Patterns in Habitat Degradafion........................................"I.............
4
1.4 Reservoir Aging............................................................................................................7
1.5 Downstream Concerns'.,.,,'...".,. .... 6 .......... ........ .......................
.....
12
2 Partnerships for Watershed Management....................................15
2.1 Introduction.................................................................................................................15
2.2 Reservoir Managers versus Watershed Management...........................................16
2.3 Common Watershed Problems..............................................................•..,...............17
2.4 Links between Watersheds and Reservoir Fish...., ... ..........
19
2.5 Iowa's Lake and Watershed Management Program..............................................21
2.6 Tennessee Valley Authority's Watershed Partnerships.........................................22
2.7 Watershed Management, I I I I I I I I I 1 1 6 1 1 . . . . . . * . . 4 . 4 1 1 * I I I . I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 * I 1 0 R 0
4 0 ,
, 23
2.7.1 The Necessity of Watershed Management...................................................K...
23
2.7.2 Goal of Watershed Management................,.,..,...,,.,..,...,...................................24
2.7.3 Watershed Inventory ....................... .. ,....,...26
2.7.4 Partnership Building...........................................................................................28
2.7.5 Watershed Management Practices...................................................4.........4......
31
3 Sedimentation.............,,.....................................................................35
3.1 lntroduchon:..:..... ,,...,:.. ::........ ......, :.:....:.:...........35
3.2 Sources of Sediment..................................................................................,..,.....:,...,..37
3.3 Stages in Reservoir Sedimentation....... ......... .........38
3.4 Rates of Sedimentation.. ....................... .......... ft ..........
...
41
3.5 Effects of Sedimentation............................................................................................43
iii

Sedimentation
3.5 Effects of Sedimentation
43
Bottom sediment is a critical component of reservoir systems. Sed went serves
as habitat for benthic invertebrates (Peeters et al. 2004);. can influence macrophyte dis-
tribution (Duarte and Kalff 1986); accumulates nutrients and regulate nutrient recy-
cling rates (Sondergaard et al. 2003); controls concentrations of dissolved oxygen, hy-
drogen sulfide, and other constituents in bottom waters (Miranda et al. 2001; Reese et
al. 2008); accumulates contaminants such as metals, pesticides, and other hydrophobic
organic compounds (Karickhoff et al. 1979; Baudo et al. 1989); and provides a record
of past conditions in the reservoir and its watershed (Wren et al. 2008). Sedimentation
can clog interstices in substrate, thus reducing sediment—water exchanges and oxygen
penetration and altering biogeochemical and microbial processes (Rehg et al. 2005;
Nogaro et al. 2006). A large fraction of the nutrients deposited into a reservoir are
stored within layers of sediment attached to organic and clay particles (Nurnberg
1988). Deposition of phosphorus bound to clays can play a large role in a reservoir's
oxygen budget, particularly after the reservoir has lost depth. The interactions among
the mineral properties of sediment and water chemistry determine whether sediment
becomes a source or a sink of nutrients or other contaminants. Periodic anoxia in the
hypolimn on can, for example, result in desorption of nutrients or other contaminants
from sediment into the water column (Sondergaard et al. 2001; section 6). Physical and
chemical interactions between water and influent sediment can, therefore, play an im-
portant role in determining the outcome of the effects of increased sediment loading
on lake ecosystems (Nurnberg 1988).
Benthic invertebrates play an important role in the food web of many reser-
voirs and in recycling of materials (Underwood 1991). Increased sedimentation, by in-
creasing inorganic turbidity of the water column and rates of sedimentation of inor-
ganic particles into the reservoir basin, has a number of direct and indirect effects on
benthic invertebrates, including reduced feeding and growth rates and increased mor-
tality (Donohue and Irvine 2003). Sediment loading tends to reduce the abundance of
benthic invertebrates (Donohue and Irvine 2004). Moreover, alterations to benthic in-
vertebrate taxonomic composition can occur (Carew et al. 2007). These alterations fre-
quently include reductions in species richness resulting from increased homogeneity
oI substrates. Input of fine sediment has been reported to be more detrimental to ben-
thic invertebrates than coarse sediment because it is more likely to clog interstices and
reduce oxygen penetration.
Spawning habitat of substrate -spawning fish is smothered by sedimentation
(Money et al. 1979). If sediment blankets the substrate after spawning, oxygen supply
to eggs and sac fry is decreased because of reductions in water circulation (Waters
1995; Argent and Flebbe 1999). Consequently, sedimentation decreases available
spawning habitat, reduces spawning activity, and increases egg and larval mortality

44 Section 3
(Alabaster and Lloyd 1982; Ryan 1991). Reproductive strategies that involve parental
care, such as fin fanning and egg nipping and mouthing, appear to be more successful
in habitats with intermediate levels of sediment (Berkman and Rabeni 1987).
In areas where sedimentation continues unabated, shallow aquatic habitats
can transition relatively quickly to wetlands and eventually to uplands because of con-
tinued sediment deposition above the normal pool elevation during flood flows. Sed-
imentation of the littoral zone rather than the profundal zone, along with shore ero-
sion, and reduced connectivity to embayment habitat through mouth sedimentation
are likely to have the biggest effect on reservoir fish communities. Barren, homogene-
ous, windswept littoral areas are poor food producers, unsuitable habitat for nest
builders, and poor refuges for littoral juvenile fishes. As the bank and littoral habitats
degrade through sedimentation and erosion, and environmental conditions or reser-
voir operation prevent establishment of aquatic or wetland macrophytes, the density
of fish that rely on the littoral zone during all or part of their ontogeny decreases. In
such reservoirs, the fish community shifts toward dominance by species that can oc-
cupy pelagic niches and thus do not rely on substrates or substrate -based resources.
Erosion and ensuing sedimentation and shallowing of reservoirs not only have been
linked to reductions in benthic production but also to reductions in plankton produe-
tion through reduced water clarity. In advanced stages of sedimentation, fish commu-
dties may consist of species that thrive in turbid, shallow systems with low oxygen
and large fluctuations in temperature.
3.6 Monitoring Sedimentation
Various methods have been developed far estimating thickness of accumu-
lated sediment in a reservoir. Three techniques are described here, including sediment
cores, topographic contrast, and acoustic estimation. Each technique has limitations
and strengths. Ideally, all three approaches may be applied concurrently to get a more
complete representation and estimation of sediment thickness and distribution.
3.6.1 Sediment Cores
Cores typically are taken from a boat by means of a gravity corer or vibrational
coring system. In either case, aluminum, plastic, or steel tubes are forced into the sed-
iment, ideally until pre -impoundment substrate is reached. The tube is withdrawn and
sliced longitudinally, or the sample is carefully removed from the tube, allowing for
the measurement of sediment thickness and sample collection. The interface between
pre -impoundment substrate and post -impoundment sediment is usually fairly dis-
tinct. Several companies manufacture sediment coring systems, including some small
systems suitable for use in small boats in reservoirs (e.g., VibeCore Specialty Devices

UNITED STATES DEPARTMENT OF COMMERCE
$ National Oceanic and Atmospheric Administration
.."' NATIONAL MARINE FISHERIES SERVICE
gg southeast Reglonal oirce
sw;; of ( 26313th Avenue South
Si. Petersburg, Florida 33701-5505
htttillseraninWir aa.gov
(Sent via Eleotrome Maii)
Colonel Robert 7. Clark, Commander
USACE Wilmington District
69 Darlington Avenue
Wilmington, North Carolina 28403-1398
Dear• Colonel Clark:
Januarry 29, 2018
NOAA's National Marine Fisheries Service (NMFS) reviewed the project described in the public
notice listed below. Based on the information in the public notice, the proposed project would
NOT occur in the vicinity of essential fish habitat (EFH) designated by the South Atlantic
Fishery Management Council, Mid -Atlantic Fishery Management Council, or the IVMFS.
Present staffmg levels preclude further analysis of the proposed work and no further action is
planned. This position is neither supportive of nor in opposition to authorization of the proposed
work.
Notice No.
SAW-1997-02C9b
Applicants)
Lake Tahoma
Incorporated; Buck
Greek
Notice Date Comment Due Date
January 2b, 2018 February 26, 2018
Please note these comments do not satisfy consultation responsibilities under section 7 of the
Endangered Species Act of 1973, as amended. If an activity may effect" listed species or critical
habitat under the purview of the NWS, please initiate consultation with the Protected Resources
Division at the letterhead address.
Sincerely,
Pace Wilber £or
Virginia M. Fay
Assistant Regional Administrator
Habitat Conservation Division
u F

To:
Mr. Pace Wilber
United States Department of Co
NOAA
National Marine Fisheries Service
Southeast Regional Office
263 13t" Avenue South
St. Petersburg, FL 33701-5505
From: Jeffrey T. Brown,
Re: Lake Tahoma \Y
Lake Tahoma Dredge
Brown PA job no. 17017
Mr. Wilber,
Per your letter to USACE, regarding the Lake Tahoma Dredging Project please note the following
responses to your comments attached:
• Comments Noted
I trust this answers your comments, if you have any further questions, please do not hesitate to call
me.
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214 > www.brownpa.net

North Carolina Wildlife Resources Commission
Gordon Myers, Executive Director
February 20, 2018
Ms. Crystal Amschler
U.S. Army Corps of Engineers, Regulatory Branch
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
SUBJECT: Lake Tahoma Dredging Project
Little Buck Creek and Buck Creek, McDowell County
Action ID#: SAW4997-02095
Dear Ms. Amsebler:
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed an
individual permit application for Lake Tahoma, Inc, to mechanically dredge up to 28,000 yd'
from 3.4 acres in Little Buck Creek and Buck Creek, just upstream of their confluences with
Lake Tahoma in McDowell County. Our comments on this application are offered for your
consideration under provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and Fish
and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d).
There is a Smalmmouth Bass fishery in Toms Creek downstream of Lake Tahoma, but wild trout
should not be impacted by the project. However, in order to protect both the Smallmouth Bass
fishery and other native aquatic biota, it is important that the potential for sediment loss from the
project within downstream Buck Creek be minimized.
Two coffer dams were constructed as sediment retention structures in the late 1990s on Buck
Creek and Little Buck Creek, just upstream of their confluences with Lake Tahoma. These
structures were built to capture sediment and allow for periodic dredging of the sediment caught
behind them. The project proposes to dredge 9,000 yd' of sediment upstream and 16,000 yd' of
sediment downstream of the coffer dam on Buck Creek; however, the site plans provided do not
show the area of dredging downstream of the Buck Creek coffer dam. In addition, 3,000 yd of
sediment would be dredged upstream of the coffer dam on Little Buck Creek.
Sediment will be dredged mechanically with a bucket and dragline from land. Disturbed areas
would be stabilized and revegetated. Adjacent wetlands would be avoided, and spoil would be
deposited in four locations, three of which are adjacent to Little Buck Creek and a wetland.
Mailing Address: Habitat Conservation • 1721 Mail Service Center e Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]

Lake Tahoma Dredging Project
Lake Tahoma, McDowell County
February 20, 2018
Our primary concern about the project is the potential for sediment loss from project activities,
Therefore, we recommend the following:
• As the dredging will be performed in the wet, turbidity curtains should be placed
downstream of the areas to be dredged to minunize the chance that outflows from the
dam will be turbid. Turbidity levels in the lake should be visually monitored, and if there
is visually apparent turbidity in lake outflows as a consequence of dredging, dredging
should be suspended and additional measures to control turbidity put in place.
• Effective sediment and erosion control measures must be used at the dredging sites and
spoil locations. Silt fences and other best management practices should be used to keep
sediment at the sediment handling and deposition areas.
In addition, disturbed areas along Buck Creek and Little BuckCreek shoutd be planted with
native herbaceous and woody vegetation.
Thank you for the oppotiunity to review and comtnent on this project. Please contact me at
[phone] if you have any questions about these comments,
Sincerely,
Andrea Leslie
Mountain Region Coordinator, Habitat Conservation Program
ec: Jeffrey Brown, Brown Consultants
Amy Annino and one Homewood, NC Division of Water Resources
David Goodfred , NCWRC

To: Ms. Andrea Leslie
North Carolina Wildlife
Mountain Region Coordinator, Habitat Conservation Program
1721 Mail Service Center
Raleigh, NC 27699-1721
From: Jeffrey T. Brown, PE
Re: Lake Tahoma
Lake Tahoma Dredge
Brown PA job no. 17017
Ms. Leslie,
Per your letter to USAGE, regarding the Lake Tahoma Dredging Project please note the following
responses to your comments attached:
• Comment Noted:
Sediment will not be released downstream. Both the dredging locations are near the
confluence of Buck Creek and Little Buck Creek — and upstream of existing coffer
dams. There will be ongoing visual inspections below the dam for turbidity; however,
the length of the Lake allows for any silting to settle prior to release over the dam.
• Comment Noted:
Erosion Control, temporary and permanent grassing and site stabilization is required
.
on the project.
I trust this answers your comments, if you have any further questions, please do not hesitate to call
meI
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214> www.brownpa.net

United States Department of the Interior
FISH AND WILDLIFE SERVICE
Asheville Field Office W 160 Zillicoa Street
Asheville, North Carolina 28801
February 225 201$
Ms. Crystal Amschler
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Avenue, Room 208
Asheville; North Carolina 28$01-5006
Dear Ms. Amschler:
Subject: Lake Tahoma Dredging Project; McDowell County, North Carolina
Log No. 4-2-18-142
The U.S. Fish and Wildlife Service (Service) has reviewed the information provided in the public
notice issued January 25, 2018 for the proposed project referenced above: We submit the
following comments in accordance with the provisions of the Fish and Wildlife Coordination
Act, as amended (16 U.S.C. 661-667e); the National Environmental Policy Act (42 U.S.C. §4321
et seq.); and section 7 of the Endangered Species Act of 1973, as amended (16 U.S.C.
1531-1543) (Act).
Project Description
According to the information provided, the Applicant is seeking an individual permit for impacts
to jurisdictional waters of the U.S. associated with the dredging of Lake Tahoma near Marion,
North Carolina. Specifically, the proposed project would entail draglining 3.35 acres of open
water, removal of 28,000 cubic yards of sediment from Buck Creek and Little Buck Creek, and
vegetation clearing for equipment access. Disturbed work areas would be stabilized and
revegetated immediately.
Federally Listed Endangered and Threatened Species
According to Service records, suitable summer roosting habitat may be, present in the project
area for the federally threatened northern long-eared bat (Myotis septentrionalis; i.e. crevices,
cavities, and gaps in the bark of live and dead trees). However, the final 4(d) rule (effective as of
February 16, 2016), exempts incidental take of northern long-eared bat associated with activities
that occur greater than 0.25 miles from a known hibernation site, and greater than 150 feet from
a known, occupied maternity roost during the pup season (June 1 — July 31). Based on the
information provided, the project (which may or may not require tree clearing) would occur at a
location where any incidental take that may result from associated activities is exempt under the
4(d) rule. Although not required, we encourage the Applicant to avoid any associated tree
clearing activities during the maternity roosting season from May 15 — August 15 to reduce
the probability for take of this species.

According to our records and a review of the information presented, no other federally protected
species or their respective habitats occur within the project boundary. Thus, we believe the
proposed project would have no effect on federally protected species and consultation
requirements are complete at this time. However, obligations under section 7 of the Endangered
Species Act must be reconsidered if: (1) new information reveals impacts of this identified
action that may affect listed species or critical habitat in a manner not previously considered,
(2) this action is subsequently modified in a manner that was not considered in this review, or
(3) a new species is listed or critical habitat is determined that may be affected by the identified
action.
We offer the following comments in the interest of protecting fish and wildlife resources:
Erosion and Sediment Control
The proposed ground disturbance and its proximity to jurisdictional features necessitates
stringent erosion control measures to prevent degradation of shoreline and aquatic habitats.
Measures to control sediment and erosion should be installed before any ground -disturbing
activities occur. Grading and backfilling should be minimized, and existing native vegetation
should be retained (where possible) to maintain riparian cover for fish and wildlife. Disturbed
areas should be revegetated with native grass and tree species as soon as possible. The extent of
disturbance should be limited to what will be stabilized by the end of the workday. Natural
fiber matting (coir) should be used for erosion control as synthetic netting can trap animals
and persist in the environment beyond its intended purpose.
Dredged material should be placed only in the approved disposal areas. Dredged material should
not be placed in wetlands, even temporarily.
The Service appreciates the opportunity to provide these comments. Please contact Mr. Byron
Hamstead of our staff at 828/258-3939, Ext. 225, if you have any questions. In any future
correspondence concerning this project, please reference our Log Number 4-2-18-142.
Sincerely,
- - origi
nal signed - -
Janet Mizzi
Field Supervisor

To: Ms, Janet Mizzi
Field Supervisor
United States Department of the Interior
Fish and Wildlife Service
Asheville Field Office
160 Zillicoa Street
Asheville, NC 28801
From: Jeffrey T. Brown, PE _S O J 1�1
Re: Lake Tahoma
Lake Tahoma Dredge
Brown PA job no. 17017
Ms. Mizzi,
Per your letter to USACE, regarding the Lake Tahoma Dredging Project please note the following
responses to your comments attached:
Tree Clearing: Comment Noted:
No tree clearing will be required for this work.
Erosion and Sediment Control: Comment Noted:
Sediment will not be released downstream. Both the dredging locations are near the
confluence of Buck Creek and Little Buck Creek — and upstream of existing coffer
dams. There will be ongoing visual inspections below the dam for turbidity; however,
the length of the Lake allows for any silting to settle prior to release over the dam.
Erosion Control, temporary and permanent grassing and site stabilization is required
on the project.
I trust this
answers your comments, if you have any flxrther
questions,
please do not hesitate to call
me.
30 Ben Lippen School Road, Suite 202, Asheville, NC 28806> 828.350.7683 [office] > NC License No.: C-3214> www.brownpa.net