HomeMy WebLinkAbout20061819 Ver 1_Year 4 Monitoring Report_2019_20200316ID#* 20061819 Version* 1
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Initial Review Completed Date 03/17/2020
Mitigation Project Submittal - 3/16/2020
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LINDSAY CROCKER
Project Information
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ID#:* 20061819
Existing IDY
Project Type: r DMS r Mitigation Bank
Project Name: Black Gum
County: Robeson
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lindsay.crocker@ncdenr.gov
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Mitigation Monitoring Plans
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NOT AN INSTRUMENT PROJECT
Year 4 Monitoring Report
Black Gum Creek Wetland Restoration Site
DMS Project Number 97063
DWR Number 2006-1819 USACE Action ID SAW-2015-01605
Lumber River Basin 03040203
Robeson County, North Carolina
February 2020
Prepared by:
NC Department of Environmental Quality
Division of Mitigation Services
1652 Mail Service Center
Raleigh, NC 27699
This report was written in conformance with the DOD and EPA 40 CFR Part 230 (Final Rule) and the
Year 4 Annual Monitoring Report
Black Gum Creek 97063
2
April 2003 US Army Corps of Engineers, Wilmington District Stream Mitigation Guidelines
TABLE OF CONTENTS
1.0 Project Summary…………...…..……………………………………………………………………………………………4
2.0 Performance Standards...…….………………………………………………………………………………………….....4
2.1 Vegetation…………………………………………………………………………………………………………4
2.2 Hydrology…………………………………………………………………………………………………………..5
3.0 Monitoring Plan.…..………….……………………………………………………………………………………………....5
4.0 Maintenance & Contingency Plan……………………………………………………………………………………….....5
5.0 Year 4 Monitoring……………………………………………………….……………………………………………………6
Appendices
Appendix A. Background Tables
Table 1 Project Components
Table 2 Project Activity & Reporting
Table 3 Project Contacts
Table 4 Project Attributes
Appendix B. Visual Assessment Data
Figure 1 Vicinity Map
Figure 2 Asset Map
Figure 3 Current Condition Plan View
Site Photos
Table 5 Vegetation Condition Assessment
Appendix C. Vegetation Plot Data
Table 6 Vegetation Plot Summary
Table 7 Vegetation Density
Appendix D. Hydrologic Data
Figure 4 Monthly Rainfall Data
Figures 5a-5f Monitoring Gauge Data
Table 8 Wetland Hydrology Criteria Attainment
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Year 4 Annual Monitoring Report
Black Gum Creek 97063
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1.0 PROJECT SUMMARY
The Black Gum Creek Project (the site) is a wetland rehabilitation and preservation project constructed for the NC
Division of Mitigation Services (DMS) to fulfill non-riparian wetland needs in the Lumber River Basin 03040203
Catalog Unit. The project is located in northwest Robeson County, approximately 6 miles north of Maxton, off Modest
Rd (Figure 1). This project includes rehabilitation of non-riparian wetlands and preservation of existing forested and
ponded wetlands (Table 1).
The Project site is a former agricultural field, located on an inter-stream divide between the Lumber River and Black
Gum Swamp, surrounded by forested areas and agricultural parcels. The site was altered since the mid-80s, which
included ditching and clearing.
The site contains approximately 9.940 acres exhibiting wetland hydrology and soils (Wetland 1), but initially was
lacking in hydrophytic vegetation, lending itself to a rehabilitation restoration approach using the definitions provided
in 40 CFR Part 230 (Final Rule). Additionally, there are two jurisdictional wetland communities on the site, as
confirmed by an approved jurisdictional determination (JD) by the US Army Corps of Engineers on January 6, 2016,
leading to a preservation approach to provide wetland restoration equivalents (RE). These preservation areas
include 23.042 acres of a successional wetland and forested hardwood flat in the Southern section of the project
(Wetland 2) and 51.382 acres of forested hardwood flat/pocosin and open water/wetland habitat in the northern
section of the project, for a total of 74.424 acres of preservation (Figure 2). These acreages have been updated from
the Mitigation Plan to As-Built stage due to GIS geometry calculation.
Wetland restoration activities included planting the rehabilitation areas in March 2016 with 5,010 bare root species
from the Hardwood Flat Forest Community (NCWAM, v. 4.1 2010) as well as other similar species found in the
adjacent forested wetland community. There were six (6) different species selected to reflect the target vegetative
community.
1.1 Goals and Objectives
The Lumber River Basin Restoration Priorities state that the goals for the Black Gum Creek 14-digit HUC are:
• Replacing buffer
• Repairing channelized streams
• Preservation of existing resources.
The following specific project goals, as stated in the Mitigation Plan, include:
• Restoring a hardwood flat vegetation community
• Expanding forested wetland complex
The success of these project goals will be addressed through the following objectives:
• Plant native tree/shrub species
• Preserve existing hardwood flat/pocosin wetlands
2.0 PERFORMANCE STANDARDS
2.1 Vegetation
An average density of 260 stems/acre must be surviving after five years of monitoring. Upon completion of planting in
March 2016, eight (8) permanent vegetation plots were installed and initial plant stocking was performed to determine
species composition and density (Appendix C, Table 6). Vegetation was monitored using the Carolina Vegetation
Survey (CVS) protocols level 2 monitoring.
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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2.2 Hydrology
The site will present continuous saturated or inundated hydrologic conditions for at least 8% of the growing season
during normal weather conditions. A “normal” year is based on NRCS climatological data for Robeson County, using
the 30th to 70th percentile thresholds as the range of normal. The growing season for Robeson County, using the
50% chance of higher than 28 F method, is from March 22th through November 5th, 228 days (WETS Table,
Robeson County). Hydrologic performance will be determined through evaluation of automatic recording gauge data
supplemented by documentation of wetland hydrology indicators as defined in the 1987 USACE Delineation Manual,
daily data will be collected from automatic wells over the 5-year monitoring period.
Five (5) continuous monitoring groundwater gauges were installed to provide pre-restoration conditions, and data
was downloaded to provide one more year of pre-restoration data for this as-built report. Data from the 2018 growing
season is provided in Appendix D.
3.0 MONITORING PLAN
Annual monitoring data will be reported using the DMS monitoring template. The monitoring report provides a project
data chronology to facilitate an understanding of project status and trends, population of DMS databases for analysis,
research purposes, and assist in decision making regarding project close-out.
Required Parameter Quantity Frequency Notes
Yes Groundwater
Hydrology
Quantity and location of
gauges will be determined
in consultation with DMS
annual
Groundwater monitoring gauges with data
recording devices will be installed on site; the
data will be downloaded on a quarterly basis
Yes Vegetation
Quantity and location of
vegetation plots will be
determined in consultation
with DMS
Monitoring
Years 1,
2,3,4,5
Vegetation will be monitored using the Carolina
Vegetation Survey (CVS) protocols
Exotic and
nuisance
vegetation
Semi-annual Locations of exotic and nuisance vegetation will
be mapped
Project boundary Semi-annual Mapping of vegetation damage, boundary
encroachments
The first scheduled vegetation monitoring was conducted during the first full growing season following project
completion (2016) and continues for the next five years through 2020. The survivability of the vegetation plantings
will be evaluated using a 100m2 vegetative sampling plots randomly placed in the planted areas.
Groundwater elevations will be monitored to evaluate jurisdictional wetland hydrology. Verification of wetland
hydrology will be determined by automatic recording of well data collected within the project area.
4.0 MAINTENANCE AND CONTINGENCY PLAN
DMS shall monitor the site and conduct a physical inspection of the site a minimum of once per year throughout the
post-construction monitoring period until performance standards are met. These site inspections may identify site
components and features that require routine maintenance. Routine maintenance should be expected most often in
the first two years following site construction and may include the following:
Component/Feature Maintenance through project close-out Remedial Measures
Vegetation
Vegetation shall be maintained to ensure survival. Routine vegetation
maintenance and repair activities may include supplemental planting.
The site will also be evaluated to ensure diffuse flow is still occurring.
Any remedial activities performed will be
documented in the annual monitoring reports.
Site Boundary
Site boundaries shall be identified in the field to ensure clear distinction
between the mitigation site and adjacent properties. Boundaries may
be identified by fence, marker, bollard, post, tree-blazing, or other
means as allowed by site conditions and/or conservation easement.
Boundary markers disturbed, damaged, or destroyed will be repaired
and/or replaced on an as needed basis.
Any remedial activities performed will be
documented in the annual monitoring reports.
5.0 YEAR 4 MONITORING
Year 4 annual monitoring (MY4) was conducted on July 24, 2019 (vegetation plots) and December 09, 2019 (final
gauge downloads). Year 4 monitoring activities included visual monitoring and stem counts of the project vegetation;
downloading monitoring gauge data; verifying the presence, or lack of, invasive species; checking the integrity of the
easement; and taking photographs at the established photo points.
There were 5 gauges on this site, and a 6th gauge was installed 4/30/2019 (nearby gauge 4) for additional hydrologic
data. This gauge (6) functioned through the July monitoring, but was destroyed by wildlife (likely a bear) before the
December download. Nevertheless, gauge 6 performed at 11% hydroperiod during this time. It will be reinstalled in
2020.
Between the July and December site visits, there was trespass in the easement and along the credit line where
someone bush hogged path that destroyed gauge 1 and mowed a shooting field outside the credit area to the east of
gauge 2 (see pictures). DMS is working with Property attempting to reconcile the trespass because it is a remote site
with an absentee landowner. Gauge 1 will be reinstalled, and a small number of trees replanted in the dormant
season 2020 to ensure that the credit line is vegetated adequately. The length of path mowed inside the credit area
is ~275’ and ~4’ wide (1,100 sf, see CCPV Figure 3).
Seven of the eight (8) vegetation plots met the vegetative success criteria with a project-wide average of 465 stems
per acre (Figure 3, Appendix B and Table 7, Appendix C).
All six gauges met the hydrologic success target of greater than 8% of the growing season (Appendix D). Gauges 1 &
6 met success criteria despite being damaged. Hydrology for these gauges are represented through July 2019.
Gauges 2 and 3 are both located outside of the wetland rehabilitation areas. Gauge 2, which is just outside the
rehabilitation asset line, indicated that the water table was continuously above 12” for 16.6% of the growing season
and gauge 3, further away from any proposed wetland rehabilitation, had 16.2% continuous hydrology. This
information may indicate that the site’s hydrologic footprint is expanding more than anticipated for the project.
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Year 4 Annual Monitoring Report
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APPENDIX A
BACKGROUND TABLES
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Table 1: Project Mitigation Components
Black Gum Creek, DMS Project ID# 97063
Type RE RE
Acres 74.424
Total Credits -7.442
1.5
10
10
Restoration
(Rehabilitation)
Enhancement
Enhancement I
Enhancement II
Creation
Preservation
High Quality
Preservation
R=Restoration, RE= Restoration Equivalent
-----
---74.424 -
---
-
-
Riverine Non-
Riverine
----
---9.940 --
Component Summation
Restoration Level Stream
(linear feet)
Riparian Wetland
(acres)
Non-
(acres)
Buffer
(square feet)
Upland
(acres)
Wetland 3 -51.382 -RE 51.382
Wetland 2 -23.042 -RE 23.042
Restoration
Acreage
Mitigation
Ratio
Wetland 1 -9.940 -R 9.940
Project Component Stationing/
Location
Existing
Footage/Acreage
Approach
(PI, PII etc.)
Restoration -or-
Restoration
Equivalent
Mitigation Components
Stream Riparian Wetland Non-riparian
Wetland Buffer Nitrogen
Nutrient
9.940
Project Components
Phosphorous Nutrient
Offset
R R RE R
---6.627
Year 4 Annual Monitoring Report
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Table 2. Project Activity and Reporting History
Table 3. Project Contacts Table
Data collection Completion or
Activity or Deliverable Complete Delivery
Institution Date NA Jul-05
404 permit date NA NA
Restoration Plan NA Jan-16
Site Planted NA Mar-16
Mitigation Plan / As-built Baseline Apr-16 Apr-16
Year 1 Monitoring Nov-16 Dec-16
Year 2 Monitoring Dec-17 Dec-17
Year 3 Monitoring Dec-18 Jan-19
Year 4 Monitoring Dec-19 Jan-20
Year 5 Monitoring
Project Management & Design NCDEQ Division of Mitigation Services
Primary POC Lindsay Crocker 910-594-3910
Survey Contractor Landmark Surveying, Inc.
PO Box 839, Graham, NC 27253-0839
Survey contractor POC Doug Yarbrough - 336-263-1294
Planting Contractor Bruton Natural Systems, Inc.
PO Box 1197, Fremont, NC 27830
Planting contractor POC Charlie Bruton - 919-242-6555
Monitoring Performers NCDEQ Division of Mitigation Services
1652 Mail Service Center, Raleigh, NC 27699-1652
Vegetation Monitoring POC Casey Haywood 919-707-8978
Wetland Monitoring POC Casey Haywood 919-707-8978
Table 3. Project Contacts Table
Black Gum Creek / DMS ID# 97063
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Table 4. Project Attributes Table
Project Name
County
Project Area (acres)
Project Coordinates (lat. & long.)
Physiographic Province
River Basin
USGS Hydrologic Unit 8-Digit 3040203 USGS Hydrologic
Unit 14-Digit 3040203020010
DWR Sub-basin
Project Drainage Area (ac)
Project Drainage Area % Impervious
CGIA Land Use Classification
Parameters 1 2 3
Size of Wetland (acres)9.940 23.042 51.382
Wetland Type Non-riparian Non-riparian Non-riparian
Mapped Soil Series Rains & Plummer/
Osier
Plummer/Osier &
Rutledge Rutledge
Drainage Class Poorly & Very Poorly
Drained Very Poorly Drained Very Poorly Drained
Soil Hydric Status Hydric Hydric Hydric
Source of Hydrology Precipitation Precipitation Precipitation
Hydrologic Impairment None None None
Existing Vegetation Crops Successional Forested
Percent composition of exotic invasive vegetation 0%0%0%
Regulation Applicable Resolved Supporting
Documentation
Waters of the U.S. Section 404 Yes Yes Jurisdictional
Determination
Waters of the U.S. Section 401 Yes Yes Jurisdictional
Determination
Endangered Species Act N/A N/A N/A
Historic Preservation Act N/A N/A N/A
Coastal Zone Management Act (CZMA)/ Coastal Area
Management Act (CAMA)N/A N/A N/A
FEMA Floodplain Compliance N/A N/A N/A
Essential Fisheries Habitat N/A N/A N/A
Project Watershed Summary Information
Coastal Plain
Lumber
03-07-51
Project Information
Black Gum Creek
Robeson
147.47
7919'44" W 3449'12" N
N/A
<1%
50% Forested, 41% Agriculture
Existing Wetland Summary Information
Regulatory Considerations
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Black Gum Creek 97063
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APPENDIX B
VISUAL ASSESSMENT DATA
Year 4 Annual Monitoring Report
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Figure 1. Vicinity Map
Site Directions from Raleigh:
• Take I-95 S to Exit 41, NC-59
• Turn Right on NC-59
• After 0.7 mile turn left onto Shipman Rd
• After 1.0 mile turn right on US 301-S
• After 2.4 miles turn right onto NC-71 S
• After 6.6 miles turn right onto NC 20/W Main St.
• After 5.8 miles turn left onto N Old Wire Rd
• After 11.0 miles continue onto Modest Rd
• After 1.6 miles turn right onto Winston Rd
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Figure 2. Asset Map
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Figure 3. Current Conditions Plan View
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Photos 1-8 taken 7/24/2019 (all photo points are located on the SE corner of the corresponding vegetation plot)
Photo Point 1 Photo Point 2
Photo Point 3 Photo Point 4
Photo Point 5 Photo Point 6
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Photo Point 7 Photo Point 8
Large shooting field mowed outside credit /planted area East of
wetland gauge 2. Area approximately 100’ x 40’ = 0.1 acre 12/9/20
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Mowed path inside credit area and destroyed wetland gauge 1. 12/9/20
Total area of mowed path ~1,200’ x 4’ wide = 0.1 acre
Gauge 6 destroyed by bear (top and right) 12/9/20
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Table 5. Vegetation Condition Assessment
Black Gum Creek, DMS Project ID# 97063
Planted Acreage: 9.9 acres
Vegetation Category Mapping Threshold CCPV Depiction Number of
Polygons
Combined
Acreage
% of
Planted
Acreage
1. Bare Areas 0.1 acres Pattern and Color 0 0.00 0%
2. Low Stem Density Areas 0.1 acres Pattern and Color 0 0.00 0%
Totals 0 0.00 0%
3. Areas of Poor Growth Rates or Vigor 0.25 acres Pattern and Color 0 0.00 0%
Cumulative Totals 0 0.00 0%
Vegetation Category Mapping Threshold CCPV Depiction Number of
Polygons
Combined
Acreage
% of
Easement
Acreage
4. Invasive Areas of Concern 1000 SF Pattern and Color 0 0.00 0%
5. Easement Encroachment Areas none Pattern and Color 1 0.20 1%Areas or points (if too small to render as polygons at map scale).
Table 5. Vegetation Condition Assessment
Black Gum Creek, DMS Project ID# 97063
Planted Acreage 9.9
Definitions
Very limited cover of both woody and herbaceous material.
Woody stem densities clearly below target levels based on MY3,
4, or 5 stem count criteria.
Areas with woody stems of a size class that are obviously small
given the monitoring year.
Easement Acreage 14 acres
Definitions
Areas or points (if too small to render as polygons at map scale).
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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APPENDIX C
VEGETATION PLOT DATA
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Table 6. Vegetation Plot Summary
Black Gum Creek, DMS Project ID# 97063
Table 7. Vegetation Density
Black Gum Creek, DMS Project ID# 97063
Color for Density
Exceeds requirements by 10%
Exceeds requirements, but by less than 10%
Fails to meet requirements, by less than 10%
Fails to meet requirements by more than 10%
PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T PnoLS P-all T
Acer rubrum red maple Tree 4 3 3 13 9 9 13 5 5 6 6 6 6 1 1 1 1 1 1 1 1 1 26 26 45 26 26 27 27 27 27 34 34 34 34 34 34
Betula nigra river birch Tree 1 1 1 2 2 2 1 1 1 4 4 4 4 4 4 1 1 1 13 13 13 13 13 14 13 13 13 17 17 17 18 18 18
Cornus amomum silky dogwood Shrub 2 2 2 1 1 1 1 1 1 3 3 3 1 1 1 4 4 4 12 12 12 13 13 13 13 13 13 16 16 16 18 18 18
Fraxinus pennsylvanica green ash Tree 6 6 6 2 1 1 1 2 2 3 2 3 3 12 12 12 26 13 13 20 11 11 11 22 22 22 22 22 22
Liquidambar styraciflua sweetgum Tree 1 1
Pinus taeda loblolly pine Tree 1 1 2
Platanus occidentalis American sycamore Tree 4 4 4 4 4 4 1 1 1 2 2 2 4 4 4 15 15 15 15 15 16 16 16 16 21 21 21 22 22 22
Quercus michauxii swamp chestnut oak Tree 2 2 2 3 3 3 1 1 1 2 2 2 1 1 1 2 2 2 2 2 2 1 1 1 14 14 14 15 15 16 15 15 15 13 13 13 13 13 13
Salix nigra black willow Tree
Unknown Shrub or Tree 2 2 2 2 2 2
11 11 15 10 10 23 14 14 18 15 15 18 15 15 16 6 6 8 11 11 11 10 10 19 92 92 128 95 95 106 95 95 95 125 125 125 129 129 129
4 4 5 3 3 5 5 5 5 6 6 7 5 5 6 4 4 5 4 4 4 5 5 5 6 6 8 6 6 6 6 6 6 7 7 7 7 7 7
445.2 445.2 607 404.7 404.7 930.8 566.6 566.6 728.4 607 607 728.4 607 607 647.5 242.8 242.8 323.7 445.2 445.2 445.2 404.7 404.7 768.9 465.4 465.4 647.5 480.6 480.6 536.2 480.6 480.6 480.6 632.3 632.3 632.3 652.6 652.6 652.6
Scientific Name Common Name Species Type
97063-01-0001 97063-01-0002
1
0.02
97063-01-0007 97063-01-0008
Annual Means
MY4 (2019)MY3 (2018)MY2 (2017)MY1 (2016)MY0 (2016)
Current Plot Data (MY4 2019)
97063-01-0003 97063-01-0004 97063-01-0005 97063-01-0006
Stem count
size (ares)
size (ACRES)
Species count
Stems per ACRE
1
0.02
1
0.02
1
0.02
1
0.02
1
0.02
1
0.02
1
0.02
8
0.20
8
0.20
8
0.20
8
0.20
8
0.20
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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APPENDIX D
HYDROLOGIC DATA
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Figure 4. Monthly Rainfall Data
Black Gum Creek, DMS Project ID# 97063
MY3 (2018) and MY4 (2019) observed and historic rainfall data collected from the USDA-NRCS Agricultural Applied Climate
Information System, Laurinburg-Maxton Airport monitoring station in Scotland County. Data acquired for MY2 (2017) from
USDA-NRCS Agricultural Applied Climate Information System (Red Springs 1 SE monitoring station) in Robeson County was not
used for proceeding years due to missing data and/or data errors.
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
Jan-19 Feb-19 Mar-19 Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19 Historic averages and probabillities (in)Observed rainfall (in)Date
Monthly Precipitation
Observed 30th percentile 70th percentile Historic average
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Figure 5a. Monitoring Gauge #1
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22 – Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 37
Hydroperiod Percent: 16.2%
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Figure 5b. Monitoring Gauge #2
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22 – Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 38
Hydroperiod Percent: 16.6%
Year 4 Annual Monitoring Report
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Figure 5c. Monitoring Gauge #3
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22 – Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 37
Hydroperiod Percent: 16.2%
Year 4 Annual Monitoring Report
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Figure 5d. Monitoring Gauge #4
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22 – Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 64
Hydroperiod Percent: 27.9%
Year 4 Annual Monitoring Report
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Figure 5e. Monitoring Gauge #5
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22 – Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements:57
Hydroperiod Percent: 24.9%
Year 4 Annual Monitoring Report
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Figure 5f. Monitoring Gauge #6
Black Gum Creek, DMS Project ID# 97063
Growing Season Days: 228 (Mar 22-Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements:25
Hydroperiod Percent: 10.9%
Year 4 Annual Monitoring Report
Black Gum Creek 97063
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Table 8. Wetland Hydrology Criteria Attainment
Black Gum Creek, DMS Project ID# 97063
Growing Season is 228 days. Eight (8) percent of the growing season is equal to 18 days or more of consecutive readings above 12 inches
** Gauge 2 and 3 are located outside of asset areas.
***Gauges 1 and 2 were destroyed by a bear and data could not be retrieved in 2015.
Gauge 6 was installed 4/30/2019. Gauge 1 and 6 were destroyed in 2019 and data could not be retrieved for the entire duration of the monitoring
year. Data for these gauges for MY4 are indicative of hydrology through July 23, 2019.
Gauge Year 0 (2014)Year 0 (2015)Year 1
(2016)
Year 2
(2017)
Year 3
(2018)
Year 4
(2019)
Year 5
(2020)
Yes/ 46 Yes/26
21.0%11.4%
N/A / 10 N/A / 11
4.4%4.8%
N/A / 12 N/A / 41 N/A / 7
5.3%18.0%3.1%
Yes / 52 Yes/46 Yes/39
22.8%20.2%17.0%
Yes / 23 Yes/63 Yes/67
10.1%27.6%29.3%5 Yes/24
10.5%
Yes/44
19.3%
Yes/57
24.9%
Success Criteria Achieved/Max Consecutive Days During Growing Season
(Number of days/ Percentage)
3**N/A / 5
2.2%
N/A / 15
6.6%
N/A / 37
16.2%
2**Not available***N/A / 52
22.7%
N/A / 38
16.6%
1 Not available***Yes/24
10.5%
Yes/52
22.8%
Yes/37
16.2%
4 No/2
0.9%
No/10
4.4%
Yes/62
27.1%
N/A / 22
9.6%
6 NA NA Yes/25
10.9%NA NA NA