HomeMy WebLinkAbout20061819 Ver 1_Year 2 Monitoring Report 2017_20181201NOT AN INSTRUMENT PROJECT
Year 2 Monitoring Report
Black Gum Creek Wetland Restoration Site
DMS Project Number 97063
USACE Action ID SAW -2015-01605
Robeson County, North Carolina
December 2017
Prepared by:
NC Department of Environmental Quality
Division of Mitigation Services
1652 Mail Service Center
Raleigh, NC 27699
Mitigation Services
ENVIRONMENTAL QUALITY
This report was written in conformance with the DOD and EPA 40 CFR Part 230 (Final Rule) and the
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..........................................................................................................................4
3.0 Monitoring Plan................................................................................................................................5
4.0 Maintenance & Contingency Plan........................................................................................................6
5.0 Year 1 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 -5e Monitoring Gauge Data
Table 8 Wetland Hydrology Criteria Attainment
Year 2 Annual Monitoring Report
Black Gum Creek 97063
2
**THIS PAGE INTENTIONALLY LEFT BLANK**
Year 2 Annual Monitoring Report
Black Gum Creek 97063
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. 4.12010) 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 2 Annual Monitoring Report
Black Gum Creek 97063
4
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 2017 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
Groundwater
Quantity and location of
Groundwater monitoring gauges with data
Yes
Hydrology
gauges will be determined
annual
recording devices will be installed on site; the
in consultation with DMS
data will be downloaded on a quarterly basis
Quantity and location of
Monitoring
Yes
Vegetation
vegetation plots will be
Years 1,
Vegetation will be monitored using the Carolina
determined in consultation
2,3,4,5
Vegetation Survey (CVS) protocols
with DMS
Exotic and
nuisance
Semi-annual
Locations of exotic and nuisance vegetation will
vegetation
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 100m2vegetative 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:
Year 2 Annual Monitoring Report
Black Gum Creek 97063
5
Component/Feature
Maintenance through project close-out
Remedial Measures
Vegetation shall be maintained to ensure survival. Routine vegetation
Any remedial activities performed will be
Vegetation
maintenance and repair activities may include supplemental planting.
documented in the annual monitoring reports.
The site will also be evaluated to ensure diffuse flow is still occurring.
Site boundaries shall be identified in the field to ensure clear distinction
between the mitigation site and adjacent properties. Boundaries may
Site Boundary
be identified by fence, marker, bollard, post, tree -blazing, or other
Any remedial activities performed will be
means as allowed by site conditions and/or conservation easement.
documented in the annual monitoring reports.
Boundary markers disturbed, damaged, or destroyed will be repaired
and/or replaced on an as needed basis.
5.0 YEAR 2 MONITORING
Year 2 annual monitoring (MY2) was conducted in August 8 and December 13, 2017. As stated in Section 3.0, year 2
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.
All eight (8) vegetation plots met the vegetative success criteria with a project -wide average of 481 stems per acre
(Figure 3, Appendix B and Table 7, Appendix C). Of note, a fire burned through the northernmost portion of the
project rehabilitation area in the late 2016-17 dormant season. The burned area included vegetation plots one and
two, and gauge four. Multiple visual assessments indicated that the fire did not result in significant tree mortality,
likely due to its low intensity in the early dormant season. However, both plots will need to be reestablished in MY3
because their PVC corners were melted by the fire.
Hydrology data indicated that two of three gauges in the rehabilitation area (gauges 1 & 5) met the hydrologic
success target of greater than 8% of the growing season (Appendix D). Hydrology for gauge 4 did not meet success
criteria. However, it is important to note that the location of gauge 4 exhibited signs of continuous inundation
during multiple monitoring trips and has an established stand of obligate wetland grasses and rushes and
several desirable species of volunteer trees. Because it is possible that this gauge malfunctioned due to the
fire, it will be replaced in 2018. 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
9.6% of the growing season while gauge 3, further away from any proposed wetland rehabilitation, only had 2.2%
continuous hydrology; potentially indicating that the wetland asset lines for rehabilitation were drawn appropriately.
Except for gauge 2, all gauges had a decrease in hydrology from the prior monitoring year, which may be a function
of low antecedent rain conditions in the 2017 growing season.
Year 2 Annual Monitoring Report
Black Gum Creek 97063
6
APPENDIX A
BACKGROUND TABLES
Year 2 Annual Monitoring Report
Black Gum Creek 97063
Table 1: Project Mitigation Components
Black Gum Creek, DMS Project ID# 97063
Year 2 Annual Monitoring Report
Black Gum Creek 97063
Mitigation Components
Stream
Non -riparian
Riparian Wetland
Wetland
Buffer Nitrogen
Nutrient
Phosphorous Nutrient
Offset
Type R
RE
R RE R RE
Acres
9.940 74.424
Total Credits
-
- 6.627 7.442
......••••• ......•••••
......••••••......•••••• ••••••
Project Components
Project Component
Stationing/
Location
Existing
Footage/Acreage
Approach
(PI, PII etc.)
Restoration -or-
Restoration
Equivalent
Restoration
Acreage
Mitigation
Ratio
Wetland 1
9.940
R
9.940
1.5
Wetland 2
23.042
RE
23.042
10
Wetland 3
51.382
RE
51.382
10
Component Summation
Restoration Level
Stream
linear feet
Riparian Wetland
acres
Non-
acres
Buffer
(square feet
Upland
acres
Riverine Non-
Riverine
Restoration
(Rehabilitation)
9.940
Enhancement
Enhancement I
Enhancement II
Creation
-
Preservation
74.424
High Quality
Preservation
R=Restoration, RE= Restoration Equivalent
Year 2 Annual Monitoring Report
Black Gum Creek 97063
Table 2. Project Activity and Reporting History
Activity or Deliverable
Data collection
Complete
Completion or
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
r-16
r-16
Year 1 Monitoring
Nov -16
Dec -16
Year 2 Monitoring
Dec -17
Dec -17
Year 3 Monitoring
Year 4 Monitoring
Year 5 Monitoring
Table 3. Project Contacts Table
Designer
NCDEQ Division of Mitigation Services
Primary planting plan POC
Kristin Miguez 910-796-7475
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
Year 2 Annual Monitoring Report
Black Gum Creek 97063
Table 4. Project Attributes Table
Project Information
Project Name Black Gum Creek
County Robeson
Project Area (acres) 147.47
Project Coordinates (lat. & long.) 79019'44" W 34049'12" N
Project Watershed Summary Information
Physiographic Province Coastal Plain
River Basin Lumber
USGS Hydrologic Unit 8 -Digit 3040203
USGS Hydrologic
Unit 14 -Digit
3040203020010
DWR Sub -basin 03-07-51
Project Drainage Area (ac) N/A
Project Drainage Area % Impervious <1%
CGIA Land Use Classification 50% Forested, 41 % Agriculture
Existing Wetland Summary Information
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/ Plummer/Osier & Rutledge
Osier Rutledge
Drainage Class Poorly & Very Poorly Very Poorly Drained Very Poorly Drained
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%
Regulatory Considerations
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
FEMAFloodplain Compliance
N/A
N/A
N/A
Essential Fisheries Habitat
N/A
N/A
N/A
Year 2 Annual Monitoring Report
Black Gum Creek 97063
10
APPENDIX B
VISUAL ASSESSMENT DATA
Year 2 Annual Monitoring Report
Black Gum Creek 97063
11
Yez
Bla
12
Figure 1. Vicinity Map
Figure 2. Asset Map
Year 2 Annual Monitoring Report
Black Gum Creek 97063
13
Figure 3. Current Conditions Plan View
Year 2 Annual Monitoring Report
Black Gum Creek 97063
14
Site Photos (all photo points are located on the SE corner of the corresponding vegetation plot)
Photo Point 1
Photo Point 3
Photo Point 5
Photo Point 7
Year 2 Annual Monitoring Report
Black Gum Creek 97063
15
Photo Point 2
Photo Point 4
Photo Point 6
Photo Point 8
Table 5. Vegetation Condition Assessment
Black Gum Creek, DMS Project IN 97063
Planted Acreage: 9.9 acres
Easement Acreaue2 14
Mapping
CCPV
Number of
Combined
% of Planted
Vegetation Category
Definitions
Threshold
Depiction
Pol ons
Acrea a
Acreage
1. Bare Areas
Very limited cover of both woody and herbaceous material.
0.1 acres
Pattern and
0
0.00
0.0%
4. Invasive Areas of Concern"
Areas or points (if too small to render as polygons at map scale).
1000 SF
Color
0
0.00
0.0%
2. Low Stem Density Areas
Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria.
0.1 acres
Pattern and
0
0.00
0.0%
Color
5. Easement Encroachment Areas'
Areas or points (if too small to render as polygons at map scale).
none
Total
0
0.00
0.0%
3. Areas of Poor Growth Rates or Vigor
Areas with woody stems of a size class that are obviously small given the monitoring year.
0.25 acres
Pattern and
0
0.00
0.0%
Color
Cumulative Totall
0
0.00
0.0%
Easement Acreaue2 14
Year 2 Annual Monitoring Report
Black Gum Creek 97063
16
% of
Mapping
CCPV
Number of
Combined
Easement
Vegetation Category
Definitions
Threshold
Depiction
Polygons
Acreage
Acreage
4. Invasive Areas of Concern"
Areas or points (if too small to render as polygons at map scale).
1000 SF
Pattern and
0
0.00
0.0%
Color
5. Easement Encroachment Areas'
Areas or points (if too small to render as polygons at map scale).
none
Pattern and
0
0.00
0.0%
Color
Year 2 Annual Monitoring Report
Black Gum Creek 97063
16
APPENDIX C
VEGETATION PLOT DATA
Year 2 Annual Monitoring Report
Black Gum Creek 97063
17
Table 6. Vegetation Plot Summary
Black Gum Creek, DMS Project ID# 97063
Avg. Success
Planted stems Criteria
Plot # stems per acre Met?
1
12
486
Y
2
10
405
Y
3
14
567
Y
4
15
607
Y
5
15
607
Y
6
7
283
Y
7
11
445
Y
8
11
445
Y
Project Avg
12
481
Table 7. Vegetation Density
Black Gum Creek, DMS Project IN 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%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
18
Current Plot Data (MY22017)
Annual Means
Scientific Name
Common Name
Species Type
97063-01-0001
97063-01-0002
97063-01-0003
97063-01-0004
97063-01-0005
97063-01-0006
97063-01-0007
97063-01-0008
MY2(2017)
MY1(2016)
MYO(2016)
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
3
3
3
9
9
9
5 5
5
6 6
6
1 1
1 1
1
1
2
2
2
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
17 17
17
16
16
16
Cornus amomum
silky dogwood
Shrub
2
2
2
1
1
11
1 1
1
3 3
3
2 2
21
4
4
4
13
13
131
16 16
16
16
16
16
Fraxinus pennsylvanica
green ash
Tree
5
5
51
1
1
1
2 2
21
3
3
3
Ill
11
11
22 22
22
161
161
16
Liquidambarstyraciflua
sweetgum
Tree
Pinus taeda
loblolly pine
Tree
Platanus occidentalis
American sycamore
Tree
1
1
1
4
4
41
4 4
4
1 1
1
2 2
2 4
4
4
16
16
16
21 21
21
20
20
20
Quercus michauxii
swamp chestnut oak Tree
3
31
3
3
3
3
1
1
1
2 2
2
1 1
1
2 2
2 2
2
2
1
1
1
15
15
15
13 13
131
12
12
12
Salix nigra
Iblackwillow
lTree
Unknown
JShrub or Tree
I
1
1
2 2
2
1
11
1
Stem count
size (ares)
size (ACRES)
Species count
Stems per ACRE
12
12
12
10
10 10
14
14 14
15 15
15
15 15
15
71 7 7
111
111
11
11
11
11
951
95 95
125 125 125
1151
1151 115
1 1 1 1 1 1 1 1 8 8 8
0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.20 0.20 0.20
75=. 5 3 3 3 5 5 5 6 6 6 5 5 5 4 4 4 4 4 4 5=51 5 6 6 6 7 7 7 7 7 7
485.6 485.6 4856 404.7 404.7 404.7 566.6 566.6 566.6 607 607 607 607 607 607 283.3 283.3 283.3 445.2 445.2 445.2 445.2 445.2 445.2 480.6 480.6 480.61 632.31 632.31 632.3 581.7 581.71 581.7
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%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
18
APPENDIX D
HYDROLOGIC DATA
Year 2 Annual Monitoring Report
Black Gum Creek 97063
19
Figure 4. Monthly Rainfall Data
Black Gum Creek, DMS Project ID# 97063
9
8
7
c
6
5
CU 4
0)
3
O
6
1
0
Monthly Precipitation
Jan -17 Feb -17 Mar -17 Apr -17 May -17 Jun -17 Jul -17 Aug -17 Sep -17 Oct -17 Nov -17
Date
� Observed 30th percentile 70th percentile Historic average
7
c
6
v
5
0
4 a
c
3 v
bn
m
v
2 CU
U
1 0
0
Observed rainfall data collected from the State Climate Office of North Carolina, NC State University CRONOS database, Red Springs 1 SE
monitoring station. Historic data obtained from the USDA-NRCS Agricultural Applied Climate Information System (Red Springs 1 SE
monitoring station).
Year 2 Annual Monitoring Report
Black Gum Creek 97063
20
Figure 5a. Monitoring Gauge #1
Black Gum Creek, DMS Project ID# 97063
2
5.0
0.0
-5.0
Black Gum Creek Hydrology Monitoring-MY2
Groundwater Gauge 1
-25.0
-30.0
35.0
n n n n n n n n n n n n n n n n n n n n n n n n n
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
N N N N N N N N N N N N N N N N N N N N N N N N N
0 0
O c -I N c -I N c -I N O N O N O .ti O .-I M .ti N c -I N O N O c -I O
ami ami N N 1
O 0 O O O O O O O O O O O 0 O 0 O O O O O O O N .ti .-I c -I .-I
-Date Time Depth (in) Date
-Longest Period Meeting Requirements
-Required Depth
-Growing Season
Growing Season Days: 228 (Mar 22 — Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 24
Hydroperiod Percent: 10.5%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
21
Figure 5b. Monitoring Gauge #2
Black Gum Creek, DMS Project ID# 97063
2
5.0
0.0
-5.0
Black Gum Creek Hydrology Monitoring-MY2
Groundwater Gauge 2
-25.0
-30.0
35.0
n
0
N
O
N
O
n n n n n
0 0 0 0 0
\ \ \ \ \
ul Ol N �➢ N
n n
0 0
\ \
�D 0
n
0
\
M
n n
0 0
\ \
0 rl
O O O O O
� Daily Precipitation (in)
O O
O
O O
—Date Time Depth (in)
—Longest Period Meeting
Requirements
—Required Depth
—Growing Season
n n n n n n n n n n n n n n
0 0 0 0 0 0 0 0 0 0 0 0 0 0
4I N a O m n O V W N 12 O\1 m
O . -i O c -I M O N O c O
O O O O O 0 0
0 n n n 0_0 W O O N N N
O O O 0 O
Date
Growing Season Days: 228 (Mar 22 — Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 22
Hydroperiod Percent: 9.6%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
22
Figure 5c. Monitoring Gauge #3
Black Gum Creek, DMS Project ID# 97063
5.0
0.0
-5.0
-10.0
Black Gum Creek Hydrology Monitoring-MY2
Groundwater Gauge 3
-25.0
-30.0
35.0
n n n n n n n n n n n n n n n n n n n n n n n n n
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 Or Oa 00 ON lL O RI I� O a 0
00 N 0 QI Irl
O
e`i e_iN N N M I`rl In ill lO lO n n O I\ W 00 m m O .`-I N N
O O O O O O O O O O O O O O O O O O O O
� Daify Precipitation )in) Date
—Date Time Depth )in)
—Longest Period Meeting Requirements
—Required Depth
—Crnwi— Seaann
Growing Season Days: 228 (Mar 22 — Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 5
Hydroperiod Percent: 2.2%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
23
Figure 5d. Monitoring Gauge #4
Black Gum Creek, DMS Project ID# 97063
5.0
0.0
-5.0
is
-10.0
Black Gum Creek Hydrology Monitoring-MY2
Groundwater Gauge 4
-25.0
-30.0
-35.0
n n n n n n n n n n n n n n n n n n n n n n n n n
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 Or OV D] Ory �D O m r O V OW ry 0 QI m
N O
I;mepi o o N N o o o o o c oZEr o o o c o o o c O O N N N
O O O O O O O O O O O O O O O O O O O O
-Date Time Depth (in) Date
-Longest Period Meeting Requirements
-Required Depth
-Growing Season
Growing Season Days: 228 (Mar 22 — Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 2
Hydroperiod Percent: 0.9%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
24
Figure 5e. Monitoring Gauge #5
Black Gum Creek, DMS Project ID# 97063
5.0
0.0
-5.0
e
y -10.0
Black Gum Creek Hydrology Monitoring-MY2
Groundwater Gauge 5
-25.0
-30.0
35.0
n n n n n n n n n n n n n n n n n n n n n n n n n
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
N N N N N N N N N N N N N N N N N N N N N N N
N �NCI1 NN 'aN`[YI 'a d V 0W O n O 41 ` NN `N
O1
O 0 O O O 1 fI N N O O N0
,.Zr R n _1 O O �z M N i
O O O O O
O O O O O O O O O O O O O O O 1 1 1
- Date Time Depth (in) Date
-Longest Period Meeting Requirements
-Required Depth
-Growing Season
Growing Season Days: 228 (Mar 22 — Nov 5)
Target Hydroperiod Percent: 8%
Required Number of Days Meeting Requirements: 18
Longest Period Meeting Requirements: 24
Hydroperiod Percent: 10.5%
Year 2 Annual Monitoring Report
Black Gum Creek 97063
25
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 for
comparison purposes.
*** Gauges 1 and 2 were destroyed by a bear and data could not be retrieved in
2015.
Year 2 Annual Monitoring Report
Black Gum Creek 97063
26
Success Criteria Achieved/Max Consecutive Days During Growing Season
(Number of days/ Percentage)
Gauge
Year 0 (2014)
Year 0 (2015)
Year 1
Year 2
Year 3
Year 4
Year 5
(2016)
(2017)
(2018)
(2019)
(2020)
1
Yes/ 46
Not
Yes/26
Yes/24
available***
(10.5%)
21.0%
11.4%
N/A / 10
Not
N/A / 11
N/A / 22
2**
available***
(9.6%)
4.4%
4.8%
N/A/12
N/A/41
N/A/7
N/A/5
3**
5.3%
18.0%
3.1%
(2.2%)
Yes / 52
Yes/46
Yes/39
No/2
4
22.8%
20.2%
17.0%
(0.9%)
Yes / 23
Yes/63
Yes/67
Yes/24
5
10.1%
27.6%
29.3%
°
( 10.5 /o)
* 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 for
comparison purposes.
*** Gauges 1 and 2 were destroyed by a bear and data could not be retrieved in
2015.
Year 2 Annual Monitoring Report
Black Gum Creek 97063
26