Lake Adger Dredging Wetland Monitoring Report #3-Fall 2023_opt

NORTH CAROLINA WILDLIFE RESOURCES COMMISSION
LAKE ADGER DREDGING & HABITAT ENHANCEMENT PROJECT
WETLAND MONITORING REPORT #3 — DECEMBER 20, 2023
MONITORING DATE — OCTOBER 26, 2023
Prepared by: Jeff C. Ferguson, PE
Civil Design Engineer
NC Wildlife Resources Commission — Engineering Division
INTRODUCTION
The third monitoring of the planted dredge spoil area was conducted on October 26, 2023 by NC
Wildlife Resources Commission (NCWRC) staff: engineers Jeff Ferguson and James Sullivan with regional
habitat conservation coordinator, Andrea Leslie. NCWRC staff were accompanied by environmental
specialists Bryan Shamblin and Josh Wilson from DEQ Division of Energy, Mineral and Land Resources
(DEMLR). The DEMLR staff coordinated their closeout inspection for the Erosion and Sediment Control
permit
Seeding and planting of the spoil placement area was completed by Merjent, Inc. staff in October of
2022, and the first monitoring of the site occurred on October 11, 2022 within 1-week of the planting.
The first monitoring report was distributed in December of 2022. This subsequent report includes
observations, figures, conclusions and recommendations following the October, 2023 monitoring of the
subject area.
PROJECT SUMMARY
As part of an existing agreement between the NC Wildlife Resources Commission (NCWRC), Polk County
and the Lake Adger Property Owner Association (POA), NCWRC is responsible for maintaining the
existing navigation channel from the boat launch ramp to the deep section of Lake Adger. Due to the
accumulation of sediment in the forebay of Lake Adger, a plan for maintenance dredging and dredged
material handling was needed.
NCWRC worked with the design engineer (Anchor QEA of NC) to develop, permit and implement plans
for dredging the 1,500LF of channel and managing the dredged material. This plan was approved by the
US Army Corps of Engineers under an Individual Permit (SAW-2015-00788, NC DEQ Division of Water
Resources 401 (WQC004283)) and NC DEMLR Erosion Control Permit (POLK-2021-007). The plan sheet
from the design engineer showing the proposed channel dredge and permitted placement areas is
included as Figure-1 in Appendix -A.
Due to site constraints, it was determined that the most feasible approach to managing the dredged
material would be to pump the dredge slurry to isolated cells adjacent to existing wetland features in
the delta at the mouth of the Green River where it feeds into the forebay of Lake Adger. The slurry
would be distributed in an area surrounded by containment berms and turbidity curtains during the
dredging operation. At the end of the dredging and placement phase, the placed material was graded to
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3

design contours based on reference data collected from the existing, adjacent wetland features. This
phase of the project was completed by Michels Corporation in April of 2022.
The second phase of the project involved planting the placement area for habitat enhancement. An
initial planting list was prepared by Anchor QEA also based on reference data from adjacent wetland
features. The planting phase was delayed several months following completion of the dredging and
placement phase to allow for placed material consolidation and for the optimal season for planting. The
planting of the placement area was completed on October 26, 2022 by Merjent, Inc.
The permitted plans for placement and habitat enhancement included the Wetland Monitoring Plan
(Appendix -A, Figure 2) dated January 12, 2021. This monitoring plan includes criteria for documenting
the extent and condition of the placed material, the initial planting effort and for subsequent monitoring
of the planted material at 6-month intervals for up to 3-years.
PLANTING FOR HABITAT ENHANCEMENT
The planting crew from Merjent arrived at the site on October 11, 2022, and plantings were delivered by
their supplier. After the initial walkthrough, Merjent began work by mowing the 0.9-acre area to be
planted with beneficial, native vegetation. While the majority of naturally occurring vegetation was
identified as native and beneficial, there was no way to know what types of vegetation would be
dominant during the initial design and permitting phases of the project. The plan to mow any existing
vegetation and replant with species from the prescribed list would give the plantings a head start over
any invasive species that might attempt to become established. Mowed vegetation would also provide
some protection as mulch for the wetland seed mix to be broadcast over the entire planting area.
There was evidence that geese and deer browse the placement area. Attempting to use netting or other
measures to protect the plantings was determined to be impractical because of the periodic inundation
of the area and potential threats to wildlife. To address the concern of foraging by wildlife, plants were
selected that have extremely low foraging preferences.
Plantings of specific species of plugs, containerized shrubs and trees were planned in zones according to
soil type, soil hydrologic conditions and elevation. The planting zones are illustrated on the Merjent
planting plan map (Appendix -A, Figure-5). The boundaries of these zones had been loaded into
handheld GPS units to guide the planting crew.
Emergent vegetation, including plugs of Lurid Sedge, Wool Grass, Soft Stem Bullrush and Pickerel Weed,
were planted on 2-foot centers over zones 1A and 1B.
3-gallon containerized tree species including American Elm, River Birch, Black Willow, Red Maple,
Sycamore, Persimmon and Black Gum were planted in zones 113 and 2B at 2S-foot spacing.
Containerized shrubs including Spicebush and Tag Alder were also planted in zones 1B and 213 at 10-foot
spacing.
Beach grass plugs including Broom Sedge, River Oats and Poverty Wild Oat Grass were planted in zones
3A and 3B at 2-foot spacing.
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3 2

The entire 0.9-acre planting area was seeded with the wetland seed mix listed in Table 3 of the Merjent
planting plan and included Rye Grain as a temporary cover crop.
A final walkthrough and inspection of the planted placement area was held on October 26, 2022,
including staff from NCWRC, Anchor QEA, Michlels Construction and DOA State Construction Office.
Photos included in Appendix-B, Section-3 show the planted areas during and immediately following
planting operations. An as -built survey of the planted area (Appendix -A, Figure-5) delineated by
planting zones was prepared by Merjent based on GPS data and was delivered to the design engineer.
Anchor QEA staff subsequently shot low altitude aerial imagery of the placement area with a drone on
October 24, 2022. This imagery was georeferenced and overlaid on the existing aerial image of the lake
prior to the dredging activity (Appendix -A, Figure-6). This imagery is of sufficient resolution to be able to
see the actual plantings when zoomed in. This imagery will be used, in part, as a baseline for the
condition and success of coverage of the planted area when compared to similar imagery to be shot
during subsequent monitoring intervals.
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3

FALL 2023 OBSERVATIONS
During the third monitoring session on October 26, 2023, continued growth and coverage of vegetation
was observed over the majority of the spoil area. In the areas below El.=912.0' where placed soils
consist of sandy silt containing some organics, continued growth of vegetation corresponding to the
emergent vegetation species (Table 2 of Appendix -A, Figure-4) is comprised predominantly of Soft Rush,
Soft Stem Bullrush and includes Broadleaf Cattail, Common Arrowhead, Lurid Sedge and Wool Grass was
observed. The planted soft rush plugs have been doing particularly well. Following some predation by
deer, the planted bunch grasses have been showing some growth. The density and height of the
vegetation observed along the periphery of the spoil area has increased significantly since the April,
2023 monitoring.
Growth of planted vegetation over the sugar sand dominated areas has been slower than the
surrounding, lower areas but has picked up since the April site visit. Continued growth of the planted
plugs of Poverty Wild Oat Grass was observed. Vegetative coverage over these areas has improved
since April, 2023 as shown in the recent aerial images in Appendix A, Section 6.
Of the trees and shrubs planted over the placement areas, all were vital and bore leaves except for the
planted Black Willow and Smooth Alder. Basal sprouting was observed on the planted Black Willow, but
the main stems appeared dead. 10 of the 29 planted Smooth Alder shrubs had experienced some
degree of damage due to deer browsing.
New volunteer growth of Sycamore, Black Willow and a variety of Deer -tongue Witchgrass
(Dichanthelium) was observed over the entire spoil area including the sugar sand dominated zones.
Some non-native lespedeza that was not observed in April 2023 has begun to grow in the sandy zones.
Photos of the planted area from the October 2023 monitoring are provided with descriptions in
Appendix-B, Section-S. Aerial imagery comparing growth over the placement area from October 2022 to
October 2023 has been added to Appendix -A in Section-6.
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3 4

CONCLUSIONS & RECOMMENDATIONS
The permit for dredging the navigation channel at Lake Adger allows future maintenance dredging and
placement of dredged material in the permitted cells within the footprint of the lake. After completion
of the initial dredging, placement and planting phases of this project, the design engineer and owner
discussed observations and lessons learned during the process.
Following the monitoring assessment of October 2023, the NCWRC staff involved reviewed photos and
field notes, and prepared the following conclusions regarding the planted area:
• While growth of planted and seeded wetland vegetation over the high, sugar sand sections of
the placement area did not survive as expected, we continue to see evidence that these areas
will fill in with native species from the inherent seed bed and from seed transported from
adjacent wetland and wooded areas.
• Most of the woody plantings are doing well except for deer browse damage to and loss of some
planted Smooth Alder. With evidence of young Sycamore and Black Willow appearing over the
planted area, we do not see a need to supplement these with planting of additional woody
species.
• Of the planted herbaceous species, it appears that Lurid Sedge, Soft Stem Bullrush and Poverty
Wild Oat Grass are doing well. The survival of Broom Sedge planted over the high, sugar sand
areas plugs was minimal. Some growth of Broom Sedge plugs was observed in those planted
along the lower periphery of the sand zones.
• There continue to be some bare spots in the highest elevation sections where the placed
material is dominated by fine, white sand. There has been new, volunteer growth over the
sandy areas including deertongue and sycampre. With robust, dense growth of native wetland
species over the lower elevation fringe surrounding the placement area, the combined features
appear natural and stable. There was evidence of wildlife tracks on the sandy areas and Killdeer
appeared to be using the area and surrounds for nesting. Herons, turtles and aquatic organisms
were seen throughout the dense growth below 912.0'.
DEMLR environmental specialists Bryan Shamblin and Josh Wilson joined NCWRC staff at the
site during this monitoring session. They were satisfied with the quality of vegetative growth
over the spoil area, and agreed that the site is stable with no signs of erosion. Their site
inspection report (Appendix -A, Section-7) noted that the site is in compliance with erosion and
stormwater requirements. DEMLR recommended and approved close out of the existing E&SC
and NCG01 Construction Stormwater permits.
Based on the latest observations, NCWRC recommends the following for future channel dredging and
dredged material placement for beneficial use at the Lake Adger:
Robust growth of naturally occurring vegetation was observed over most of the placement
area. This growth occurred between October of 2022 and October of 2023. The overwhelming
majority of the naturally occurring vegetation was beneficial and appropriate for the area.
Planting or replanting the naturally occurring vegetation on future placement areas is not
necessary, as there is robust recruitment from natural sources (e.g., the dredge spoil itself,
transport during high water levels). Areas dominated by pure sand will likely fill in with natural
vegetation at a slower rate, but some pockets of bare sand are a good component of a mosaic
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3

of wildlife habitats. We recommend monitoring the state of natural recruitment every 6
months; if it is not sufficient, then supplemental planting can be implemented.
Sediment fence was installed as a barrier between the active placement area and the
delineated existing wetland areas immediately adjacent to the placement areas. The intent of
installing this sediment fence was to provide a temporary barrier to prevent mass ejection from
the slurry discharge from impacting the existing wetland areas.
It was noted by the dredging contractor that the sediment fence was very difficult to maintain
during the dredging and placement phase. At times when lake levels rose to or above the
normal full pond elevation, lake water would be caught inside of the sediment fence barrier.
As the lake level dropped, the pressure of water and saturated soil against the sediment fence
combined with the soft soils of the existing lakebed would cause the sediment fence to lean
over. Additional sediment fence needed to be installed above the failed areas to contain the
placed material.
Once all placement activities were complete, the temporary sediment fence and any non -
biodegradable materials were to be removed from the placement area. The removal process
resulted in further disturbance that could have been avoided if no sediment fence was used or
if a biodegradable barrier that could have been left in place was used instead.
The dredging contractor's equipment operator was skilled at using the position of the
excavator and direction of the slurry line to discharge away from the existing wetland areas.
He constructed a berm of dredged material while the excavator was positioned between the
existing wetlands and the berm. Subsequent slurry would flow in a lakeward direction away
from the wetland areas where it would settle and be contained by the coir wattle barriers.
For future dredging and placement activities, there will be less disturbance involved if sediment
fence is not required between the placement area and the adjacent, existing wetlands.
Two rows of coir wattle berms were installed across the shallow lakebed on the lakeward side
of the placement area to contain dredge slurry during dredging and placement activities. Once
saturated, the removal of these wattles becomes extremely difficult. Left in place, they serve
to maintain a quiescent zone along the fringe of the placement area and prevent erosion of the
paced material from wave action. These berms should remain in place where they will sprout
vegetation from distributed seed or biodegrade. For future dredging operations with
continued placement in these cells, the berms can be reinforced with additional coir wattles to
provide necessary containment.
FUTURE MONITORING
NCWRC staff will continue to monitor the planted area on six-month intervals for three years from the
start of monitoring on November 1, 2022 unless it is determined by permitting agencies that the routine
monitoring is no longer necessary. The next monitoring interval is scheduled to occur during April of
2024. The effectiveness of the planting work will be compared to the condition of naturally occurring
vegetation to planted vegetation. Low altitude drone imagery and field observations may be used to
document problem areas and successful establishment of coverage.
NC Wildlife Resources Commission
Lake Adger Dredging Project — Wetland Monitoring Report #3

APPENDIX - A
Figure-1: Dredging & Placement Areas from Permitted Plans (Anchor QEA of NC)
Figure-2: Wetland Monitoring Plan
Figure-3: Lake Adger Dredging Placement Area As -built Topograpy
Figure-4: Planting Plan — Final Anchor QEA Submittal Response
Figure-5: Placement Area — As -built Planting (Merjent, Anchor QEA)
Figure-6: Lake Adger Placement Area: Aerial imagery of Vegetation Growth
10/2022 (Anchor QEA) through 10/2023 (NCWRC)
Figure 7: DEMLR Inspection Report from 10-26-2023

CULVERT
ANCHOR QQ
ANCHOR UFAOFNORTH a
231 HAYWOOD STREET
ASHEVILLF, NC 28B01
LICENCE: P-1619
PROPOSED
STAGING
AREA
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MAXIMUM APPROXIMATE IMPACTED AREAS (ACRES)
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IMPACT TYPE
AREA TYPE
DESCRIPTION
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Al A2 DREDGING
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PERMANENT DUE TO PLACED
OPEN WATER
AREA BETWEEN WETLAND DELINEATION EXTENTS AND
0.7 1.1 N/A
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MATERIALS
CELL BOUNDARY
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TEMPORARY BY
WETLAND
AREA BETWEEN WETLAND DELINEATION EXTENTS AND
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UPGRADIENT LIMITS OF DISTURBANCE
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TEMPORARY BY
OPEN WATER
AREA BETWEEN CELL BOUNDARY AND
73 4-5CONSTRUCTION
ACTIVITIES
DOWNGRADIENT LIMITS OF DISTURBANCE
REVISIONS
LEGEND:
PROPOSED DREDGED MATERIAL
A'
PLACEMENT AREA DESIGNATION
EXAMPLE COIR LOG OR HAYBALE LOCATION
000000e
=c> EXAMPLE EROSION AND SEDIMENT
CONTROL MEASURES
S
EXAMPLE SILT CURTAIN OR SILT FENCE
LOCATION
— $F
— EXAMPLE SILT FENCE LOCATION
APPROXIMATE LIMITS OF DISTURBANCE -
PLACEMENT AREA
14+00
�H
PROJECT STATIONING
NAVIGATION CHANNEL DREDGE AREA
APPROXIMATE EXTENTS
— • —
— DREDGE AREA APPROXIMATE EXTENTS
— • •
• — APPROXIMATE LIMITS OF DISTURBANCE
WETLAND DELINEATION
A
OPEN -WATER DREDGING AND MATERIAL
PLACEMENT ACCESS AREA
0 80 160
0
SCALE IN FEET
NORTH
NOTES:
1.
DREDGED MATERIAL PLACEMENT AREAS ARE
00
APPROXIMATE, CONTRACTOR TO UTILIZE
COMBINED COIR LOGS, HAYBALES, SILT CURTAINS,
SILT FENCES, OR OTHER CONTROL STRUCTURES TO
MANAGE SEDIMENTS WITHIN PLACEMENT AREA
EXTENTS TO ELEVATIONS STATED IN SECTION 35
2023.
2.
CONTRACTOR TO UTILIZE E&SC MEASURES
APPROVED BY G.S. 113A-57.3 AND WHICH
PROVIDE STRUCTURAL SUPPORT (SUCH AS COIR
LOGS). HAY BALES ARE NOT APPROVED E86C
MEASURES.
a
3.
CONTRACTOR MAY ADJUST PROPOSED DREDGED
4
MATERIAL PLACEMENT AREA ALIGNMENTS AS
NEEDED TO BALANCE PLACEMENT OPERATIONS
AND SEQUENCE THE WORK.
0
4.
CONTRACTOR SHALL NOT BLOCK FLOW FROM
CULVERT AND GREEN RIVER BRANCHES DURING
o
MATERIAL PLACEMENT OPERATIONS.
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5.
ONLY BIODEGRADABLE FEATURES MAY BE LEFT IN
PLACE FOLLOWING MATERIAL PLACEMENT. ANY
SILT CURTAINS, SILT FENCES, ANCHORS, METAL
o
STAKING, OR OTHER INSTALLED ITEMS MUST
OTHERWISE BE REMOVED.
a
6.
CONTRACTOR MATERIAL TRANSPORT LINE
SHOULD BE ROUTED THROUGH WORK AREAS
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IDENTIFIED WHERE POSSIBLE.
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7.
TEMPORARY IMPACTS WILL BE MINIMIZED, WHERE
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POSSIBLE, TO IMPACTS RELATED TO ALIGNMENT
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OF HYDRAULIC DREDGING DISCHARGE HOSES,
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PEDESTRIAN ACCESS, AND MINIMAL SEEPAGE OF
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PLACED MATERIAL THROUGH THE CONTAINMENT
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STRUCTURE. STOCKPILING OF SEDIMENT ON THE
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WETLANDS WILL NOT BE ALLOWED, AND NO
a_ - m
EQUIPMENT WILL BE PLACED OR USED ON THE
WETLAND WITHOUT PRIOR APPROVAL BY NCWRC.
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SOURCES:
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AERIAL PHOTOGRAPH 02019 MICROSOFT
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(2019) DISTRIBUTION AIRBUS DS
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TOPOGRAPHIC SURVEY BY HAYESPAMES DATED
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AUGUST 27, 2018.
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SNCARP'•,REV DATE By APPD DESCRIPTION DESIGNED BY. SMITH J. NORTH CAROLINA WILDLIFE RESOURCES COMMISSION
CAFWU A S ?' 0 4 6� DRAWN BY.. HOLMER.D LAKE ADGER NAVIGATION CHANNEL MAINTENANCE DREDGING
RBI71
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+' APPROVED BY: DINICOL . W.
RosommEwlwun y �,E�;: ilp03.° SCALE AS NOTED IMPACTED AREAS
"• KJ.D `• DATE: JULY 2021
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SHEET* 14 OF 16

Anchor QEA of North Carolina, PLLC ANCHOR
231 Haywood Street
Asheville, North Carolina 28801 kz QEA
828.281.3350
WETLAND MONITORING PLAN January 12, 2021
Lake Adger Navigation Channel Maintenance Dredging Project
Anchor QEA of North Carolina, PLLC, in Consultation with North Carolina Wildlife Resources
Commission
A plan for maintenance dredging of the public boat ramp and marina navigation channel has been
developed by North Carolina Wildlife Resources Commission (NCWRC) in consultation with
engineering consultant Anchor QEA of North Carolina, PLLC. A component of this plan involves in -
lake placement of dredged material to create stable habitat features in proximity to existing wetlands
and transitional areas in the forebay of Lake Adger. The placement areas have been identified on
sheet C4 of the 90% Design Set submitted with the Response to USACE Comments and Provision of
Additional Information'.
Monitoring the stability of the placement areas and the success of planted vegetation will be
performed by NCWRC staff or a qualified contractor according to the following protocol:
1. Prior to any dredging or placement activity under this permit, NCWRC will send notification to
the North Carolina Division of Water Resources (DWR) Environmental Specialists and the
U.S. Army Corps of Engineers (USACE) representative with jurisdiction over this project. This
notification will describe the proposed dates of dredging and placement activity and include a
map identifying the locations and extents of the proposed maintenance dredge and material
placement for habitat creation.
2. The dredging contractor will perform a certified as -built survey of the extents and topography of
the completed placement area(s) at the end of the dredging and placement phase. The
contractor's surveyor will set and locate a benchmark at the high point of each placement area.
As -built surveys will be submitted to NCWRC for each dredging and placement operation for
inclusion in the monitoring reports.
3. Prior to planting, the elevation benchmarks will be monitored to assess settlement and
consolidation of the placed sediment over time. Monitoring of settlement on a weekly and/or
monthly basis will allow project engineers to estimate that adequate settlement has occurred
prior to planting.
4. Following adequate assessment, the planting contractor and project engineers will estimate
total areas and numbers of each planting type, and submit a plan to NCWRC prior to initiating
planting.
1 Anchor QEA, 2021. Letter to: David Brown, USACE. Regarding: Response to USACE Comments and Provision of Additional
Information. Lake Adger Navigation Channel Maintenance Dredging Project. January 15, 2021.
Att C_Wetland Monitoring Plan_2021-01-11.docx

January 12, 2021
Page 2
5. Following planting, the planting contractor will prepare a report for NCWRC listing the date,
species, and numbers of plantings at each placement area. Once this report has been received,
DWR and the USACE will be notified that planting operations have been completed.
6. Six months following completion of planting operations, NCWRC (or contractor) will perform an
assessment and report on the condition of the placement area(s) and any other related
temporary impacts that will have been replanted. Starting with the initial report, this information
will be compiled and forwarded to DWR and the USACE. A standard form will be developed to
include the following information for planted placement areas associated with each dredging
operation:
a. The dredging contractor's as -built survey map, estimates of pre -planting settlement, and
the planting contractor's record.
b. A visual and photo assessment of the planted areas. Photos may be taken from a boat as
viewed from different perspectives and/or from the air by an unmanned aerial system. If
significant issues of plant community failure are observed, then NCWRC will map and note
the problems in the report and will coordinate corrective actions, if needed.
c. The elevations and coordinates of benchmarks previously set on the placement areas will
be surveyed and recorded. The elevations and positions will be assessed relative to those
surveyed and recorded for the contractor as -built report to measure the extent of any
consolidation or movement of the placed material. Any apparent instabilities will be
documented.
7. During the monitoring period, any observed problems, instabilities or significant plant
mortalities will be noted and communicated to DWR and the USACE. NCWRC staff will begin an
evaluation of problems and develop a plan for remediation, if required.
8. Subsequent monitoring of planted areas will take place at 6-month intervals for a period of
3 years after the initial report for the specific activity. Photos, survey data, and observations will
be appended to the initial report. At the end of monitoring Year 2, NCWRC, DWR, and the
USACE may review conditions of the wetland plantings and decide if the monitoring interval can
be reduced to once per 12 months or if there is a need for additional monitoring.
9. Each new dredging episode will require monitoring reports for the resulting placement and
planting. Subsequent placement area(s) will be subject to the monitoring plan and time frame
described in the above steps.

ANCHOR
QEA
CONTRACTOR INFORMATION:
NAME: Paul Lehman
COMPANY: Merient
ADDRESS 1 Main Street SE, Suite 300
Minneapolis, MN 55414
Subcontractor/Supplier: various
Check:
❑ Original Submittal
Anchor QEA of North Carolina, PLLC
231 Haywood Street
Asheville, North Carolina 28801
828.281.3350
www.anchorqea.com
SUBMITTAL REVIEW TRANSMITTAL
PROJECT INFORMATION:
Lake Adger Navigation Channel
PROJECT NAME: Maintenance Dredging
PROJECT NO.: C81713-01.01
SUBJECT: Planting Plan
SUBMITTAL NO.: 11
❑X Re -submittal
DATE: October 7, 2022
❑ Other
Item
Specification
No.
Reference
Description
Other
1
See attached Submittal emails:
- Lake Adger -Follow -Up Material from Paul
2
Lehman (Merjent), dated September 2, 2022
3
- Lake Adger -Follow -Up Material from Paul
4
Lehman (Merjent), dated September 9, 2022
Review action:
❑ No Exceptions Taken
❑ Revise and Re -Submit
❑ Rejected ❑ Submit Specified Item
❑X Make Corrections Noted (Resubmittal not required)
Checking is only for general conformance with the design concept of the project and general compliance with
the information given in the contract documents. Any action shown is subject to the requirements of the plans
and specifications and does not relieve the contractor from compliance with contract requirements. Contractor
is responsible for: confirming and correlating all quantities and dimensions; selecting fabrication processes and
techniques of construction; coordinating his work with that of all other trades; and performing his work in a safe
and satisfactory manner.
Comments:
1. On September 2, 2022, Paul Lehman asked via email; "Some of the original species are available and the
species that are not available have good substitutions. We could increase our rates for the available
original species, but 1 would recommend including the substitutions to increase overall diversity and
survival [see below table]."
Anchor QEA approves the use of Lurid Sedge (Carex lurida) and Fox Sedge (Carex vulpinoidea)
but requires removal of Saltmeadow Rush (Juncus gerardii) and Threesquare (Scirpus pungens)
from the substitution list as these are coastal species.
11-Planting Plan_Anchor QEA Submittal response_2022_1007 1 of 3

TABLE 2: EMERGENT VEGETATION SPECIES
Substitution
Comments
Common Flame
Scientific Name
Planting Zone
Common Name
Scientific Name
Broadleaf Cattail
Typha latifolia
1A
Common Arrowhead
Sagittaria latifolia
1A
Lurid Sedge
Carex lurida
Wool Grass
Scirpus cyperinus
1A /1B
In stock
Soft Stem Bulrush
Schoenoplectus ta be n a e mont a n i
1A/16
In stock
Fringed Sedge
Carex crinita
1B
Remove
Pickerelweed
Pontederia cordata
1A
Fox Sed a
Carex vul pinoidea
Soft Rush
Juincus efFusus
5ei16
Spike Rush
Eleocharis montevidensis
I 1A /16
Instock
On October 7, 2022, Paul Lehman confirmed that the following quantities were purchased.
Table 2 EMERGENT VEGETATION SPECIES
Common Name
OLLnifity
Lurid Sedge
1368
Wool Grass
1368
Soft Stem Bulrush
1368
Pickerelweed
1224
Subtotal
5328
2. On September 9, 2022, Paul Lehman asked via email; "Regarding the beach species, most are not
available but there are some original species and a few substitutions to consider [see below table]."
Anchor QEA does not approve the substitutions with Bitter panicum (Panicum amarum) or
Saltgrass (Distichlis spicata) as they are both coastal plain species and do not occur in the region.
Due to the limited plug availability at the time of ordering, Anchor QEA understands that
Merjent will plant up to a maximum of —1,600 plugs per species (i.e.: 1,600 Broomsedge, 350
River Oats, and 1,050 Poverty Wild Oat Grass. This quantity of planting will achieve a 2-foot
density which would be —2,900 plants.
Species
Quantity
Comments
Broomsedge
9350
River Oats
350
Poverty wild oat gran=
1050
On October 7, 2022, Paul Lehman confirmed that the following quantities were purchased.
Table 5 Beach Species
Common Name
uantit
River Oats
225
Broomsedge
1,600
Poverty wild oat grass
1050
Sub total
2875
2 of 3

3. On September 9, 2022, Paul Lehman asked via email; "Regarding the wetland seed mix,/ am not having
luck finding a regional source. The closest source is from Ohio and Pennsylvania, but the supplier said
they have several customers in North Carolina and the seeds grow fine."
Anchor QEA approves use of an using an out-of-state supplier for the seeds
4. On October 7, 2022, Paul Lehman confirmed that the following quantities of trees and shrubs were
purchased, as two species (Box Elder and Silky Dogwood) were unavailable.
TABLE 4: TREE AND SHRUB SPECIES
Trees
Common Name
Quantity
American Elm
2
River Birch
2
Black Willow
2
Red Maple
2
American Sycamore
2
American Persimmon
2
Black Gum
2
Sub total
14
Shrubs
Common Name
Quantity
Spicebush
29
Smooth Alder
29
Sub total
58
By: Robert Cork PE Date:
CC
Walter Dinicola PE, Anchor QEA
Joe Smith PE, Anchor QEA
Jeff Ferguson PE, North Carolina Wildlife Resources Commission
Brad Kleinmaier, North Carolina Wildlife Resources Commission
Attachments
10/7/2022
Lake Adger -Follow -Up Material from Paul Lehman (Merjent), dated September 2, 2022
Lake Adger -Follow -Up Material from Paul Lehman (Merjent), dated September 9, 2022
3of3

ANCHOR
QEA
ANC> )R orA or NOR; I, LARLA,Nf� Vq I i
R" HAYWOEF., STREET
ASHVIUE. NC 2W1
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Know what's below.
Cal! before you dig.
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IMERICAN ELM + 1 f
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LLOW
LAKE A DGER
(FULL POOL ELEVATION 977.67'j
LEGEND:
—9+70
EXISTING CONTOURS IV INTERVAL)
— — —
WETLAND DELINEATION
PLACEMENT AREA. BOUNDARY
A7
PLACEMENT AREA DESIGNATION
WETLAND SEED MIX - ALL ZONES
BEACH 5PECIES - ZONES 3A/38
®
EMERGENT VEGETATION 5PECIES - ZONES 1All B
PERMANENT IMPACT AREAS
0 TREE PLANTING
0
NORTH
U 20 40
MEMO
SCALE IN FEET
SOURCES:
1, AERIAL PHOTOGRAPH ®2022 MICROSOFT
CORPORATION ®2022 DIGITALGLOBE OCNESS
(2022) DISTRIBUTION AIRBUS DS
2, TOPOGRAPHIC DRONE SURVEY BY McGIILL
DATED APRIL 08, 2022.
AS -BUILT - FOR INFORMATION ONLY
REVISIONS
DESCRIPTION DESIGN EDBy' WfrH I. NORTH CAROLINA WILDLIFE RESOURCES COMMISSION +�
DRAWN BY. HOWER D. LAKE ADGER NAVIGATION CHANNEL MAINTENANCE DREDGING C
CHECKED BY. CORER.
APPROVED BY. DINICO�WW
@[ALE AS NOTED
pAiE NOyEAFBER ,1D27 AS -BUILT PLANTING PLAN SHEET* 2 OF 5

BASE AERIAL ORTHOIMAGERY FROM:
NCONEMAP.COM (2019)
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.4 TOP OF GAUGE EL.: 912.34' `" ,' NATURALLY OCCURRING
'• f 3 TOP OF BOARD EL : 912.72' ``°+ VEGETATION
BELOW NORMAL FULL
;` x :.N _
} POND EL.=911.6'
(AREA=0.4AC.)
DREDGE SPOILS
PLACEMENT AREA
STAFF GAUGE #2
N35.334305' TOP OF GAUGE EL.: 913.09,
W82.231625 A TOP OF BOARD EL.: 914.49' .. '�
' qr STAFF GAUGE #3
)# F' s " '� • TOP OF GAUGE EL.: 915.21' ,
* , ? TOP OF BOARD EL.: 916.08'
s STAFF GAUGE #4
TOP OF GAUGE EL.: 915.90'
TOP OF BOARD EL.: 916.79';.:5
Ito; �• t
DRONE IMAGERY OF PLANTED AREA
BY: ANCHOR QEA OF INC, PLLC
(10-24-2022)
100 0 100 200
LAKE ADGER DREDGE SPOILS PLACEMENT AREA (OCT. 24, 2022)
Scale: 1 "=100'
LAKE ADGER DREDGE SPOILS PLACEMENT AREA (APR. 20, 2023)
Scale: 1 "=100'
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File Name:
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Surveyed:
Designed:
Drawn: JCF
Approved:
Sheet No.
1

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BASE AERIAL ORTHOIMAGERY FROM: BASE AERIAL ORTHOIMAGERY FROM: m
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W LL BY: NC WILDLIFE RESOURCES COMMISSION BY: NC WILDLIFE RESOURCES COMMISSION W
JEFF C. FERGUSON, PE >�� 1 so JEFF C. FERGUSON, PE Y
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—20-2023) QQ a
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100 0 100 200 100 0 100 200 Date:
20-DEC-2023
Scale: 1 " = 100' Scale: 1 " = 100' File Name:
— - LakeAdgerMapping.dwg
LAKE ADGER DREDGE SPOILS PLACEMENT AREA (APR. 20, 2023) LAKE ADGER DREDGE SPOILS PLACEMENT AREA (OCT. 26, 2023) Surveyed:
Designed:
Scale: 1"=100' Scale: 1"=100' Drawn: JCF
Approved:
Sheet No.
2

North Carolina Department of Environmental Quality
Land Resources: 2090 US Highway 70, Swannanoa, NC 28778 [phone]
County: Polk Project: Lake Adger Navigation Channel River basin: Broad
Person financially responsible: NC Wildlife Resources Commission - Jeff C Project #: POLK-2021-007
Ferguson
Address: 1720 Mail Service Center, Raleigh, NC 27699
1. Project Location: Lake Adger Rd, Mill Spring
Pictures: Yes - Digital
2. Weather and soil conditions: clear; dry Initial inspection: No
3. Is site currently under notice of violation? No
4. Is the site in compliance with S.P.C.A. and rules? Yes If no, check violations below:
5. Violations:
6. Is the site in compliance with NPDES Permit NCGO10000 Construction Stormwater requirements? Yes
Describe:
7. Has sedimentation damage occurred since last inspection? No If Yes, where? (check all that apply)
Degree of damage:
8. Contact made with (name): Jeff Ferguson Title: Engineer
Inspection report: Sent Report Date given/sent: November 03, 2023
9. Corrective action needed:
10. Comments: Site inspection was performed by request for permit close out. Site is stabilized and approved
for close out.
Please visit deq.nc.gov/ncg01 to file the eNOT.
Reported by: Bryan Shamblin Others present: Josh Wilson
Date of inspection: October 26, 2023 Time arriving on site: 10:00 AM Time leaving site: 10:40 AM
cc:

Section-1:
Placement Area Photos
—April, 11, 2022
Section-2:
Placement Area Photos
— October 11, 2022
Section-3:
Placement Area Photos
— October 12 — November 9, 2022
Section 4:
Placement Area Photos
—April 20, 2023
Section 5:
Placement Area Photos
— October 25, 2023

Section-1
Placement Area Photos
Following completion of Dredging & Placement Operations
April 11, 2022

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3. Soil level staff gauge (1 of set)
4. Lakeward fringe of placed material & coir containment berm (NE side of placement)

5. View to north, fringe of placement, coir berm containment.
6. SE lobe of placement area (Zones 2 &3)

Section-2
Placement Area Photos
Prior to Mowing for Planting
October 11, 2022

1. Zone 3 beach sand area w/ naturally occurring Sycamore & Smartweed
2. Planting crew from Zone 3 looking over fringe to NE

3. Naturally occurring vegetation in Zone 1A
4. Naturally occurring vegetation in Zone 1A

5. Naturally occurring vegetation in Zone 1A
6. Naturally occurring vegetation in SE lobe of placement area
(existing wetland to right)

Section-3
Placement Area Photos
During and After Planting
October 12-Novermber 9, 2022

1. Tree & Shrub planting delivery
2. Emergent plug delivery

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5. Naturally occurring vegetation (Zone 1 below El.=912.0)
6. Beach grass plugs planted over Zone 3

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9. Zone 2 near staff gauge #3 (two weeks after planting)
10. Zone 1 plantings near staff gauge #1 (two weeks after planting)

Section-4
Placement Area Photos
Monitoring Survey #2
April 20, 2023

1. From fringe area facing south (compare to Sec. 3, Photo #3)
2. Plugs planted on high, sand area (compare to Sec. 3, Photo #4)

3. Broom Sedge plugs planted over Zone 3 (compare to Sec. 3, Photo #6)
4. Tree & shrub plantings on SW lobe (compare to Sec. 3, Photo 7)

5. Zone 3 near staff gauge #4 (compare to Sec. 3, Photo 8)
6. Zone 3 w/ tree planting north of gauge #3(compare to Sec. 3, Photo 9)

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9. Zone 3 emergent plug plantings (Soft Stem Bullrush)
10. Zone 3 Broom Sedge plug plantings

11. Basal growth on planted Black Willow
12. Zone 1 (below 912.0') growth

13. Volunteer Deer Tongue or Witch Grass (Dichanthelium)
14. Zone 3 with planted River Birch in foreground

Section-5
Placement Area Photos
Monitoring Survey #3
October 26, 2023

1. Soft rush growth over sandy zones
2. Volunteer Sycamore on high, sand area (compare to Sec. 4, Photo #3)

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