HomeMy WebLinkAbout20180795 Ver 1_Year 2 Monitoring Report_2021_20220119ID#* 20180795
Select Reviewer:
Erin Davis
Initial Review Completed Date 01/19/2022
Mitigation Project Submittal - 1/19/2022
Version* 1
Is this a Prospectus, Technical Proposal or a New Site?*
Type of Mitigation Project:*
Stream Wetlands Buffer Nutrient Offset
(Select all that apply)
Project Contact Information
Contact Name:*
Jeremiah Dow
Project Information
ID#:* 20180795
Existing ID#
Project Type: • DMS Mitigation Bank
Project Name: Slingshot Mitigation Site
County: Rockingham
Document Information
O Yes O No
Email Address:*
jeremiah.dow@ncdenr.gov
Version:* 1
Existing Version
Mitigation Document Type:*
Mitigation Monitoring Report
File Upload: Slingshot_ 100058_MY2_2021.pdf 15.03MB
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Print Name:* Jeremiah Dow
Signature: *
FINAL
MONITORING REPORT (MY2)
SLINGSHOT MITIGATION SITE
Rockingham County, North Carolina
DMS Project ID No. 100058
Full Delivery Contract No. 7525 USACE
Action ID No. SAW-2018-01170
DWR ID 20180795
RFP No. 16-007330
Cape Fear River Basin
Cataloging Unit 03030002
Data Collection: January - October
2021 Submission: January 2022
Prepared for:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF MITIGATION SERVICES
1652 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1652
Restoration Systems, LLC
1101 Haynes St. Suite 211
Raleigh, North Carolina
Ph: (919) 755-9490
Fx: (919) 755-9492
Response to Monitoring Year 2 (2021) DMS Comments
Slingshot Mitigation Site
Cape Fear River Basin — CU# 03030002 — Rockingham County
DMS Project ID No. 100058
Contract # 7525
Comments Received (Black Text) & Responses (Blue Text)
1. The monitoring summary's Site Maintenance Report table shows three instances of invasive and nuisance
vegetation management during the monitoring period. The treatment locations should be shown on the CCPV
as points or polygons and areas shown on Table 6.
Response: Invasive treatment areas have been included on the CCPV and Table 6.
Table 12 — This Table should include the current cross sectional area, i.e., the JOB cross sectional area. The
"Cross Sectional Area Between End Pins" row could be replaced with JOB cross sectional area. This should also
be reported with the summary data associated with the cross section graphs. We also recommend displaying
the JOB on the graphs as a line instead of a point for easier comparison with Bankfull based on MYO XSA.
Response: The row "Cross Sectional Area Between End Pins" was replaced with "LTOB Cross Sectional Area" in
Table 12. Additionally, a row for JOB Cross Sectional Area" was added to the cross-section figures. The point
for JOB on the graphs was replaced with a line.
3. Please include the excel workbook used to create Tables 9 & 10.
Response: This Excel file is included in the digital submittal.
4. Please include the stream gauge figures in the report and send supporting soil temperature data with the
resubmittal.
Response: Stream gauge graphs are included in the final PDF, and soil temperature data is located in the master
groundwater gauge workbook.
In Appendix E, please include a figure displaying the 30th and 70th percentile of monthly precipitation with the
observed monthly precipitation, and submit the data used to create this figure.
Response: This figure is included in Appendix E. The excel data used to create it is included in the digital
submittal.
***Gauge data was updated to follow the growing season methodology approved in the mitigation plan.
1101 Haynes St., Suite 211 • Raleigh, NC 27604 • www.restorationsystems.com • Ph 919.755.9490 • Fx 919.755.9492
Slingshot Year 2, 2021 Monitoring Summary
General Notes
• No encroachment was identified in Year 2
• No evidence of nuisance animal activity (i.e., beaver, heavy deer browsing, etc.) was observed.
Streams
• Stream monitoring data show that all stream channels and structures are stable.
Wetlands
• Ten of Eleven groundwater gauges met success for the Year 2 (2021) monitoring period. Wetland
hydrology data is in Appendix E.
Success Criteria Achieved/Max Consecutive Days During Growing Season (Percentage)
Gauge
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
(2020)
(2021)
(2022)
(2023)
(2024)
(2025)
(2026)
1
Yes
Yes
26 days (11.4%)
62 days (24.5%)
2
Yes
Yes
61 days (26.8%)
253 days (100%)
3
Yes
Yes
187 days (82.0%)
123 days (48.6%)
4
Yes
Yes
187 days (82.0%)
178 days (70.4%)
5
Yes
Yes
100 days (43.9%)
123 days (48.6%)
6
Yes
Yes
127 days (55.7%)
143 days (56.5%)
7
Yes
Yes
83 days (36.4%)
210 days (83.0%)
8
Yes
Yes
29 days (12.7%)
71 days (28.0%)
9
Yes
Yes
73 days (32.0%)
109 days (43.1%)
10
No
No
4 days (1.8%)
5 days (2.0%)
11*
Yes
Yes
46 days (20.2%)
151 days (59.7%)
*Gauge 11 was installed in an area not previously identified for wetland reestablishment but appeared to be
exhibiting wetland characteristics post -construction. During 2021 monitoring, the additional wetlands surrounding
gauge 11 were delineated, resulting in approximately 0.52 acres of wetlands on -site that were not previously
accounted for (Appendix F).
MY2 Monitoring Report (Project No. 100058) Executive Summary
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Vegetation
• Year 2 (2021) vegetation measurements occurred on October 21, 2021 and included 2 additional
random sample plots (50-meter by 2-meter). Measurements of all 12 plots resulted in an average
of 644 stems/acre excluding livestakes. Additionally, all permanent plots met success criteria, while
transect 2 was two stems shy of success. (Tables 8-10, Appendix C).
Site Permitting/Monitoring Activity and Reporting History
Activity or Deliverable
Data Collection
Complete
Completion
or Delivery
Technical Proposal (RFP No. 16-007330)
February 2, 2018
February 8, 2018
Institution Date (NCDMS Contract No. 100058)
April 24, 2018
Mitigation Plan
September 2018
June 2019
Construction Plans
--
November 18, 2019
404 Permit
--
January 2, 2020
Site Construction Final Walkthrough
--
April 30, 2020
Planting
April 30, 2020
As -built Baseline Monitoring (MYO)
May 2020
August 2020
Annual Monitoring (MY1)
November 2020
January 2021
Annual Monitoring (MY2)
October 2021
January 2022
Site Maintenance Report (2021)
Invasive Species Work
Maintenance work
7/28/2021
Kudzu, Multiflora Rose, Privet, Sweetgum,
Honeysuckle, Tree -of -Heaven, Callery Pear,
Cattail
8/02/2021
None
Tree -of -Heaven, Callery Pear, Kudzu,
Privet, Multiflora Rose, Honeysuckle,
Sweetgum, Princess Tree
9/24/2021
Kudzu
MY2 Monitoring Report (Project No. 100058) Executive Summary
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
FINAL
MONITORING REPORT (MY2)
SLINGSHOT MITIGATION SITE
Rockingham County, North Carolina
DMS Project ID No. 100058
Full Delivery Contract No. 7525
USACE Action ID No. SAW-2018-01170
RFP No. 16-007330
Cape Fear River Basin
Cataloging Unit 03030002
Data Collection: January - October 2021
Submission: January 2022
Prepared for:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF MITIGATION SERVICES
1652 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1652
Prepared by:
And
Restoration Systems, LLC
1101 Haynes Street, Suite 211
Raleigh, North Carolina 27604
Contact: Worth Creech
919-755-9490 (phone)
919-755-9492 (fax)
Axiom Environmental, Inc.
Axiom Environmental, Inc.
218 Snow Avenue
Raleigh, North Carolina 27603
Contact: Grant Lewis
919-215-1693 (phone)
TABLE OF CONTENTS
1.0 PROJECT SUMMARY.....................................................................................................................2
1.1 Project Goals & Objectives........................................................................................................... 2
1.2 Project Background......................................................................................................................4
1.3 Project Components and Structure..............................................................................................4
1.4 Success Criteria.............................................................................................................................4
2.0 METHODS....................................................................................................................................5
2.1 Monitoring....................................................................................................................................5
3.0 REFERENCES.................................................................................................................................7
APPENDICES
Appendix A. Background Map and Tables
Figure 1. Project Location
Table 1. Project Components and Mitigation Units
Table 2. Project Activity and Reporting History
Table 3. Project Contacts Table
Table 4. Project Attributes Table
Appendix B. Visual Assessment Data
Figure 2. Current Conditions Plan View
Tables 5A-5C. Visual Stream Morphology Stability Assessment
Table 6. Vegetation Condition Assessment
Vegetation Plot Photographs
Appendix C. Vegetation Data
Table 7. Planted Bare Root Woody Vegetation
Table 8. Total Stems by Plot and Species
Table 9. Temporary Vegetation Plot Data
Table 10. Planted Vegetation Totals
Appendix D. Stream Geomorphology Data
Tables 11A-D. Baseline Stream Data Summary
Tables 12A-D. Baseline Stream Data Summary (Substrate, Bed, Bank, and Hydrologic Containment
Parameter Distributions)
Tables 13A-D. Monitoring Data -Dimensional Morphology Summary (Dimensional Parameters -Cross -
sections)
Tables 14A-D. Monitoring Data -Stream Reach Data Summary
Cross -Section Plots
Appendix E. Hydrology Data
Table 15. Verification of Bankfull Events
Stream Gauge Graphs
Table 16. Groundwater Hydrology Data
Soil Temperature Graph
Figure E1. 30-70 Percentile Graph for Rainfall
Groundwater Gauge Graphs
Appendix F. Wetland Studies
Figure F-1. Site Wetland Overview
MY2 Monitoring Report (Project No. 100058) Table of Contents page i
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
1.0 PROJECT SUMMARY
Restoration Systems, LLC has established the North Carolina Division of Mitigation Services (NCDMS)
Slingshot Mitigation Site (Site).
1.1 Project Goals & Objectives
Project goals were based on the Cape Fear River Basin Restoration Priorities (RBRP) report (NCEEP 2009)
and on -site preconstruction data collection of channel morphology and function observed during field
investigations. The Site is located within Targeted Local Watershed (TLW) 03030002010010. The RBRP
report documents benthic ratings vary between "Fair" and "Good -Fair" possibly due to cattle, dairy, and
poultry operations.
The project is located within the Troublesome Creek and Little Troublesome Creek Local Watershed
Planning area (NCEEP 2004); project activities addressed priorities associated with the LWP and site -
specific information following the LWP goals in parenthesis.
1. Protect and improve water quality by restoring wetland, stream, and riparian area functions and
values, which may have been, or may be, lost through historic, current, and future impacts (4115
linear feet of stream restored/enhanced/preserved, 1.71 acres of wetland restored/enhanced,
and 11.6. acres of riparian buffer restored/enhanced).
2. Achieve a net increase in riparian zone buffers and wetlands acreage, functions, and values (11.6
acres of riparian buffer were restored/enhanced, and wetland acreage was increased by 1.02
acres).
3. Promote a comprehensive approach for the protection of natural resources (protected the Site,
streams, wetlands, and riparian buffer through a permanent conservation easement).
In addition to the defined Troublesome Creek LWP goals, additional goals for the area generally revolve
around reducing stressors to water quality. Stressors and how each was addressed by project activities
are as follows.
1. Nutrient Inputs — (livestock were removed from streams resulting in a direct reduction of 474.7
pounds of nitrogen, 39.3 pounds of phosphorus per year, and 4.7 x 1011 colonies of fecal coliform;
eliminated fertilizer applications; and installed marsh treatment areas).
2. Streambank Erosion — (reduction of 220 tons of sediment per year).
3. Stormwater — (reduced bank height ratios and installed marsh treatment area to reduce
stormwater pulses).
4. Disturbed Riparian Buffer — (restored/enhanced 11.6 acres of riparian buffer along 4115 linear
feet of stream).
5. Floodplain Alteration — (eliminated straightened, entrenched streams and removed spoil material
deposited in the floodplain).
Site -specific mitigation goals and objectives were developed through the use of North Carolina Stream
Assessment Method (NC SAM) and North Carolina Wetland Assessment Method (NC WAM) analyses of
preconstruction and reference stream systems at the Site (NC SFAT 2015 and NC WFAT 2010) (see table
below).
MY2 Monitoring Report (Project No. 100058) page 2
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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1.2 Project Background
The Slingshot Mitigation Site (hereafter referred to as the "Site") encompasses 11.6 acres of disturbed
forest and livestock pasture along warm water, unnamed tributaries to Lake Hunt. The Site is located
approximately 2 miles west of Reidsville, east of Lake Hunt, and north NC Highway 158 in Rockingham
County (Figure 1, Appendix A).
Before construction, Site land use consisted of livestock pasture, hayfields, and disturbed forest. Livestock
had unrestricted access to Site streams. A narrow riparian fringe had developed on the stream margins
that was composed of opportunistic species, invasive species, and a few mature tree species.
Approximately 55 percent of the stream channel was degraded, contributing to sediment export from the
Site resulting from mechanical processes from livestock hoof shear. In addition, streamside wetlands were
cleared and drained by channel downcutting, and land uses. Preconstruction Site conditions resulted in
degraded water quality, a loss of aquatic habitat, reduced nutrient and sediment retention, and unstable
channel characteristics (loss of horizontal flow vectors that maintain pools and an increase in erosive
forces to channel bed and banks). Site restoration activities restored riffle -pool morphology, aided in
energy dissipation, increased aquatic habitat, stabilized channel banks, and greatly reduced sediment loss
from channel banks.
1.3 Project Components and Structure
Proposed Site restoration activities generated 3185 Stream Mitigation Units (SMUs) and 1.321 Riparian
Wetland Mitigation Units (WMUs) as the result of the following.
• 2501 linear feet of Priority I stream restoration
• 587 linear feet of stream enhancement (Level 1)
• 635 linear feet of stream enhancement (Level 11)
• 391 linear feet of stream preservation
• 1.018 acre of riparian wetland restoration
• 0.606 acre of riparian wetland enhancement
Additional activities that occurred at the Site included the following.
• Planting 12.05 acres of the Site with 10,950 stems (planted species are included in Table 5
[Appendix Q.
Deviations from the construction plans included removing the left vane arm from the structure at station
05+63 on Slingshot Creek and removing the three log cross -vanes between station 03+00 and 04+00 on
UT1 due to bedrock presence. No other deviations of significance occurred between construction plans
and the as -built condition. In addition, no issues have arisen since construction occurred.
Site design was completed in November 2019. Construction started on March 13, 2020, and ended within
a final walkthrough on April 30, 2020. The Site was also planted on April 30, 2020. Completed project
activities, reporting history, completion dates, project contacts, and background information are
summarized in Tables 1-4 (Appendix A).
1.4 Success Criteria
Project success criteria have been established per the October 24, 2016, NC Interagency Review Team
Wilmington District Stream and Wetland Compensatory Mitigation Update. Monitoring and success
criteria relate to project goals and objectives. From a mitigation perspective, several of the goals and
MY2 Monitoring Report (Project No. 100058) page 4
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
objectives are assumed to be functionally elevated by restoration activities without direct measurement.
Other goals and objectives will be considered successful upon achieving success criteria. The following
table summarizes Site success criteria.
Success Criteria
Streams
•
All streams must maintain an Ordinary High -Water Mark (OHWM), per RGL 05-05.
•
Bank height ratio (BHR) cannot exceed 1.2 at any measured cross-section over the monitoring period.
•
BHR at any measured riffle cross-section should not change by more than 10% from baseline condition over
the monitoring period.
•
A minimum of 30-days continuous surface flow for intermittent streams.
•
The stream project shall remain stable and all other performance standards shall be met through four
separate bankfull events, occurring in separate years, during the monitoring years 1-7.
Wetland Hydrology
•
Saturation or inundation within the upper 12 inches of the soil surface for, at a minimum, 10 percent of the
growing season, during average climatic conditions. Note: Growing season length will be confirmed with a
continuous recording temperature gauge that will measure from February to April each monitoring year.
Vegetation
•
Within planted portions of the Site, a minimum of 320 stems per acre must be present at year 3; a minimum
of 260 stems per acre must be present at year 5; and a minimum of 210 stems per acre must be present at
year 7.
•
Trees must average 7 feet in height at year 5, and 10 feet in height at year 7 in each plot.
•
Planted and volunteer stems are counted, provided they are included in the approved planting list for the
site; natural recruits not on the planting list may be considered by the IRT on a case -by -case basis.
Note: BHR will be calculated using procedures outlined in the latest approved guidance from NCDMS.
2.0 METHODS
Monitoring will be conducted by Axiom Environmental, Inc. Annual monitoring reports of the data
collected will be submitted to the NCDMS by Restoration Systems no later than December 31 of each
monitoring year data is collected. The monitoring schedule is summarized in the following table.
Monitoring Schedule
Resource
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
Streams
X
X
X
X
X
Wetlands
X
X
X
X
X
X
X
Vegetation
X
X
X
X
X
Macroinvertebrates
X
X
X
Visual Assessment*
X
X
X
X
X
X
X
Report Submittal
X
X
X
X
X
X
X
*Visual Assessment will be complimented by permanent photographic points located at each permanent cross
section and vegetation plot.
2.1 Monitoring
The monitoring parameters are summarized in the following table.
MY2 Monitoring Report (Project No. 100058) page 5
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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Stream Summary
All streams are functioning as designed, and no stream areas of concern were observed during year 2
(2021) monitoring. Stream morphology data is available in Appendix D.
Wetland Summary
Summary of Monitoring Period/Hvdrologv Success Criteria by Year
Soil Temperatures/Date Bud
Monitoring Period Used for
10 Percent of
Year
Burst Documented
Determining Success
Monitoring Period
2020 (Year 1)
March 26, 2020*
March 26-November 8
23 days
(228 days)
2021 (Year 2)
March 1, 2021**
March 1-November 8
25 Days
(253 days)
* NRCS growing season used for MY1 (2020) since gauges and soil temperature logger were not installed until May 6, 2020.
** Growing season start date confirmed with soil temperature reading of 47.83°F on March 1, 2021 and dropping no lower than
41.96°F thereafter (Appendix E).
All groundwater gauges met success criteria for the year 2 (2021) monitoring period except Gauge 10
(Appendix E).
Vegetation Summary
During quantitative vegetation sampling, 10 sample plots (10-meter by 10-meter) were installed within
the Site as per guidelines established in CVS-EEP Protocol for Recording Vegetation, Version 4.2 (Lee et al.
2008). Year 2 (2021) vegetation measurements occurred on October 21, 2021, and included 2 additional
random sample plots (50-meter by 2-meter). Measurements of all 12 plots resulted in an average of 644
stems/acre, excluding livestakes. Additionally, all permanent plots met success criteria, while transect 2
was two stems shy of success. (Tables 8-10, Appendix C).
3.0 REFERENCES
Griffith, G.E., J.M. Omernik, J.A. Comstock, M.P. Schafale, W.H. McNab, D.R. Lenat, T.F. MacPherson, J.B.
Glover, and V.B. Shelbourne. 2002. Ecoregions of North Carolina and South Carolina. U.S.
Geological Survey, Reston, Virginia.
Lee, M.T., R.K. Peet, S.D. Roberts, and T.R. Wentworth. 2008. CVS-EEP Protocol for Recording Vegetation.
Version 4.2. North Carolina Department of Environment and Natural Resources, Ecosystem
Enhancement Program. Raleigh, North Carolina.
North Carolina Division of Mitigation Services (NCDMS). 2014. Stream and Wetland Mitigation Monitoring
Guidelines. North Carolina Department of Environmental Quality, Raleigh, North Carolina.
North Carolina Division of Water Quality (NCDWQ). 2005. Cape Fear River Basinwide Water Quality Plan.
Available:
https://deg.nc.gov/about/divisions/water-resources/planning/basin-planning/water-resource-
plans/cape-fear-2005 [December 8, 2016]. North Carolina Department of Environment and
Natural Resources, Raleigh, North Carolina.
MY2 Monitoring Report (Project No. 100058) page 7
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
North Carolina Division of Water Resources (NCDWR). 2016. Standard Operating Procedures for Collection
and Analysis of Benthic Macroinvertebrates (Version 5.0). (online). Available:
https://files.nc.gov/ncdeg/Water%20Quality/Environmental%2OSciences/BAU/NCDWRMacroin
vertebrate-SOP-February%202016 final.pdf
North Carolina Division of Water Quality (NCDWQ). 2009. Small Streams Biocriteria Development.
Available:
http://Portal.ncdenr.org/c/document library/get file?uuid=2d54ad23-0345-4d6e-82fd-
04005f48eaa7&grou pld=38364
North Carolina Ecosystem Enhancement Program (NCEEP). 2009. Cape Fear River Basin Restoration
Priorities 2009 (online). Available:
http://Portal.ncdenr.org/c/document library/get file?uuid=864e82e8-725c-415e-8ed9-
c72dfcb55012&groupld=60329
North Carolina Stream Functional Assessment Team. (NC SFAT 2015). N.C. Stream Assessment Method
(NC SAM) User Manual. Version 2.1.
North Carolina Wetland Functional Assessment Team. (NC WFAT2010). N.C. Wetland Assessment Method
(NC WAM) User Manual. Version 4.1.
Schafale, M.P. and A.S. Weakley. 1990. Classification of the Natural Communities of North Carolina: Third
Approximation. North Carolina Natural Heritage Program, Division of Parks and Recreation, North
Carolina Department of Environment, Health, and Natural Resources. Raleigh, North Carolina.
Simon A, Hupp CR. 1986. Geomorphic and Vegetative Recovery Processes Along Modified Tennessee
Streams: An Interdisciplinary Approach to Disturbed Fluvial Systems. Forest Hydrology and
Watershed Management. IAHS-AISH Publ.167.
United States Department of Agriculture (USDA). 2017. Web Soil Survey (online). Available:
https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm [May 2, 2018]. United States
Department of Agriculture.
United States Department of Agriculture (USDA). 1992. Soil Survey of Rockingham County, NC. United
States Department of Agriculture.
United States Department of Agriculture (USDA). 2021. Natural Resources Conservation Service National
Weather and Climate Center. AgACIS Climate Data. Reidsville 2 NW WETS Station (online).
Available: http://agacis.rcc-acis.org/
MY2 Monitoring Report (Project No. 100058) page 8
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Appendix A
Background Map and Tables
Figure 1. Project Location
Table 1. Project Components and Mitigation Units
Table 2. Project Activity and Reporting History
Table 3. Project Contacts Table
Table 4. Project Attributes Table
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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Table 1. Project Components and Mitigation Credits (continued)
Slingshot Creek Restoration Site
Stream
Riparian Wetland
Non -Rip
Coastal
Restoration Level
Warm
Cool
Cold
Riverine
Non-Riv
Wetland
Marsh
Restoration
2501.000*
1.018
Re-establishment
Rehabilitation
Enhancement
0.303
Enhancement 1
391.333**
Enhancement 11
254.000
Creation
Preservation
39.100
TOTALS
3185.433
1.321
*An additional 126 linear feet of stream restoration is outside of the conservation easement and is therefore not included in
this total or in mitigation credit calculations.
**An additional 52 linear feet of stream enhancement (level 1) is outside of the conservation easement and is therefore not
included in this total or in mitigation credit calculations.
Table 2. Project Activity and Reporting History
Slingshot Creek Restoration Site
Activity or Deliverable
Data Collection
Complete
Completion
or Delivery
Technical Proposal (RFP No. 16-007330)
February 2, 2018
February 8, 2018
Institution Date (NCDMS Contract No. 100058)
April 24, 2018
Mitigation Plan
September 2018
June 2019
Construction Plans
--
November 18, 2019
404 Permit
--
January 2, 2020
Site Construction Final Walkthrough
--
April 30, 2020
Planting
April 30, 2020
As -built Baseline Monitoring (MYO)
May 2020
August 2020
Annual Monitoring (MY1)
November 2020
December 2020
Annual Monitoring (MY2)
October 2021
January 2022
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Table 3. Project Contacts Table
Slingshot Creek Restoration Site
Full Delivery Provider
Restoration Systems
1101 Haynes Street, Suite 211
Raleigh, North Carolina 27604
Worth Creech
919-755-9490
Designer & Monitoring Provider
Axiom Environmental, Inc.
218 Snow Avenue
Raleigh, NC 27603
Grant Lewis
919-215-1693
Table 4. Project Attribute Table
Slingshot Creek Restoration Site
Project Information
Project Name
Slingshot Creek Restoration Site
Project County
Rockingham County, North Carolina
Project Area (acres)
11.6
Project Coordinates (latitude & latitude)
36.3346872N, 79.7116652W
Planted Area (acres)
9.3
Project Watershed Summary Information
Physiographic Province
Piedmont
Project River Basin
Cape Fear
USGS HUC for Project (14-digit)
03030002010010
NCDWR Sub -basin for Project
03-06-01
Project Drainage Area (acres)
270
Percentage of Project Drainage Area that is
Impervious
<5%
CGIA Land Use Classification
Managed Herbaceous Cover & Hardwood Swamps
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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Table 4. Project Attribute Table
Slingshot Creek Restoration Site (continued)
Wetland Summary Information
Parameters
Wetlands
Wetland acreage
1.02 acre drained & 0.69 acre degraded
Wetland Type
Riparian riverine
Mapped Soil Series
Worsham
Drainage Class
Poorly drained
Hydric Soil Status
Hydric
Source of Hydrology
Groundwater, stream overbank
Hydrologic Impairment
Incised streams, compacted soils, livestock
Native Vegetation Community
Piedmont/Low Mountain Alluvial Forest
% Composition of Exotic Invasive Vegetation
<5%
Restoration Method
Hydrologic, vegetative, livestock
Enhancement Method
Vegetative, livestock
Regulatory Considerations
Regulation
Applicable?
Resolved?
Supporting Documentation*
Waters of the United States -Section 401
Yes
Yes
JD Package (App D)
Waters of the United States -Section 404
Yes
Yes
JD Package (App D)
Endangered Species Act
Yes
Yes
CE Document (App E)
Historic Preservation Act
Yes
Yes
CE Document (App E)
Coastal Zone Management Act
No
--
NA
FEMA Floodplain Compliance
No
--
CE Document (App E)
Essential Fisheries Habitat
No
--
NA
*included in the Detailed Mitigation Plan
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Appendix B
Visual Assessment Data
Figure 2. Current Conditions Plan View
Tables 5A-5C. Visual Stream Morphology Stability Assessment
Table 6. Vegetation Condition Assessment
Vegetation Plot Photographs
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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Plot 1
Plot 3
Slingshot
MY2 (2021) Vegetation Monitoring Photographs (October 2021)
Slingshot Stream and Wetland Restoration (Project No. 100058)
MY2 Monitoring Report — November 2021
Appendix B: Vegetation Data, CVS Output Table
Slingshot
MY2 (2021) Vegetation Monitoring Photographs (October 2021)
Slingshot Stream and Wetland Restoration (Project No. 100058) Appendix B: Vegetation Data, CVS Output Table
MY2 Monitoring Report — November 2021
Appendix C
Vegetation Data
Table 7. Planted Bare Root Woody Vegetation
Table 8. Total Stems by Plot and Species
Table 9. Temporary Vegetation Plot Data
Table 10. Planted Vegetation Totals
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Table 7. Planted Bare Root Woody Vegetation
Slingshot Creek Restoration Site
Species
Total*
Acres
12.05
Alnus serrulata
350
Betula nigra
700
Celtis occidentalis
300
Cercis canadensis
200
Cornus amomum
1700
Diospyros virginiana
200
Fraxinus pennsylvanica
400
Fraxinus caroliniana
100
Liriodendron tulipifera
500
Nyssa sylvatica
500
Platanus occidentalis
1500
Prunus serotina
300
Quercus alba
500
Quercus nigra
1500
Quercus phellos
1400
Quecus shumardii
500
Rhamnus caroliniana
300
TOTALS
10,950
Average Stems/Acre
909
*Approximately 2000 live stakes of willow (Salix spp.), elderberry (Sambucus canadensis), silky dogwood (Cornus amomum),
and ninebark (Physocarpus opulifolius) were planted but are not included in this table.
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
liiiiiiiiiiiiiiili�
nay
� ro
p E E
E E Q
o v
E E
Table 9. Temporary Vegetation Plot Data
Slingshot Creek Restoration Site
Species
T-1 (271°)
T-2 (232°)
Carya sp.
1
Cornus amomum
1
Diospyros virgniana
2
Fraxinus pennsylvanca
1
Platanus occidentalis
5
2
Quercus pagoda
1
Quercus phellos
1
Quercus lyrata
2
Quercus shumardii
2
Total Number of Stems
12
6
Stems/Acre
485.8
242.9
Table 10. Planted Vegetation Totals
Slingshot Creek Restoration Site
Plot #
Planted Stems/Acre
Success Criteria Met?
1
526
Yes
2
607
Yes
3
324
Yes
4
728
Yes
5
850
Yes
6
1052
Yes
7
1052
Yes
8
445
Yes
9
769
Yes
10
647
Yes
T-1
485
Yes
T-2
242
No
Average Planted Stems/Acre
644
Yes
MY2 Monitoring Report (Project No. 100058)
Slingshot Mitigation Site
Rockingham County, North Carolina
Appendices
Restoration Systems, LLC
January 2022
Appendix D
Stream Geomorphology Data
Tables 11A-11D. Baseline Stream Data Summary
Tables 12A-12D. Baseline Stream Data Summary (Substrate, Bed, Bank, and Hydrologic Containment
Parameter Distributions)
Tables 13A-13D. Monitoring Data -Dimensional Morphology Summary (Dimensional Parameters -Cross -
sections)
Tables 14A-14D. Monitoring Data -Stream Reach Data Summary
Cross -Section Plots
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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777777
Appendix E
HYDROLOGY DATA
Table 15. Verification of Bankfull Events
Stream Gauge Graphs
Table 16. Groundwater Hydrology Data
Soil Temperature Graph
Figure E1. 30-70 Percentile Graph for Rainfall
Groundwater Gauge Graphs
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
Table 15. Verification of Bankfull Events
Date of Data
Date of
Method
Photo
Collection
Occurrence
(if available)
Stream gauges and trail cameras captured a bankfull event
after 5.37 inches of rain was documented between May 20th
June 3, 2020
May 21, 2020
and 22nd, 2020 at an on -site rain gauge. Flow gauge
1
recorded a stream stage of 2.15 feet.
Stream gauges and trail cameras captured a bankfull event
November 18,
November 12,
after 3.1 inches of rain was documented between November
2020
2020
10th and 13th, 2020 at an on -site rain gauge. Flow gauge
2 3
recorded a stream stage of 2.94 feet.
Wrack was observed along the floodplain of Slingshot Creek
and the crest gauge captured a bankfull event after 2.31
February 25, 2021
February 15. 2021
inches of rain was documented between February 12th and
4
15th, 2021 at an on -site rain gauge. The trail camera was
damaged by the accompanying ice storm. Flow gauge
recorded a stream stage of 1.45 feet.
Stream gauges and trail cameras captured Slingshot Creek
receding from a bankfulI event after 1.45 inches of rain was
March 27, 2021
March 2, 2021
documented between March 26th and 27th, 2021 at an on-
5
site rain gauge. Flow gauge recorded a stream stage of 1.10
feet.
Photo-1
�-
• ` ?pay ;� 4 �� ram' g ,n, •xt
r ,
¢a?�A `J
�I cz.00
- firiL.
m
! 41
! I 11 1: 1 . u
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
5
i
Y
-
as
29.41 inH9- O 66'F 03/27/2021 03:27PM SLNGDS
MY2 Monitoring Report (Project No. 100058)
Slingshot Mitigation Site
Rockingham County, North Carolina
Appendices
Restoration Systems, LLC
January 2022
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8/29/21
8/19/21
8/9/21
7/30/21
7/20/21
7/10/21
6/30/21
6/20/21
6/10/21
5/31/21
5/21/21
5/11/21
5/1/21
4/21/21
4/11/21
4/1/21
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3/12/21
3/2/21
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10/28/21
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10/8/21
9/28/21
9/18/21
9/8/21
8/29/21
8/19/21
8/9/21
7/30/21
7/20/21
7/10/21
6/30/21
6/20/21
6/10/21
5/31/21
5/21/21
5/11/21
5/1/21
4/21/21
4/11/21
4/1/21
3/22/21
3/12/21
3/2/21
2/20/21
2/10/21
1/31/21
1/21/21
1/11/21
1/1/21
Table 16. Groundwater Hydrology Data
Success Criteria Achieved/Max Consecutive Days During Growing Season (Percentage)
Gauge
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
(2020)
(2021)
(2022)
(2023)
(2024)
(2025)
(2026)
1
Yes
Yes
26 days (11.4%)
62 days (24.5%)
2
Yes
Yes
61 days (26.8%)
253 days (100%)
3
Yes
Yes
187 days (82.0%)
123 days (48.6%)
4
Yes
Yes
187 days (82.0%)
178 days (70.4%)
5
Yes
Yes
100 days (43.9%)
123 days (48.6%)
6
Yes
Yes
127 days (55.7%)
143 days (56.5%)
7
Yes
Yes
83 days (36.4%)
210 days (83.0%)
8
Yes
Yes
29 days (12.7%)
71 days (28.0%)
9
Yes
Yes
73 days (32.0%)
109 days (43.1%)
10
No
No
4 days (1.8%)
5 days (2.0%)
11*
Yes
Yes
46 days (20.2%)
151 days (59.7%)
*Gauge 11 was installed in an area not previously identified for wetland reestablishment but appeared to be exhibiting
wetland characteristics post -construction. During 2021 monitoring, the additional wetlands surrounding gauge 11 were
delineated, resulting in approximately 0.52 acres of wetlands on -site that were not previously accounted for (Appendix
F).
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
11/19/21
11/5/21
10/22/21
10/8/21
9/24/21
9/10/21
8/27/21
8/13/21
7/30/21
7/16/21
7/2/21 +;
m
6/18/21
6/4/21
5/21/21
5/7/21
4/23/21
4/9/21
3/26/21
3/12/21
2/26/21
2/12/21
1/29/21
1/15/21
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Appendix F
WETLAND STUDIES
Figure F-1. Site Wetlands Overview
To further provide an understanding of the Site's wetland mitigation assets, IRS mapped the additional
wetland areas in the vicinity of Gauge 11 and along Slingshot Creek in the middle portion of the Site.
Gauge 11 was installed in an area that was not previously identified for wetland reestablishment but
appeared to be exhibiting wetland characteristics post -construction. Groundwater data for monitoring
years 1 and 2 indicate that this area is trending toward successful wetland reestablishment of 0.52 acres.
MY2 Monitoring Report (Project No. 100058) Appendices
Slingshot Mitigation Site Restoration Systems, LLC
Rockingham County, North Carolina January 2022
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