20020492 Ver 1_Monitoring Report_20080129

THE Louis Berger Group, INC.
1001 Wade Avenue, Suite 400, Raleigh, North Carolina 27605.3323
919.866.4400 (Phone) 919.755.3502 (Fax) www.louisberger.com
January 28, 2008
Mr. John Dorney
NCDWQ
1650 Mail Service Center
Raleigh, NC 27699-1617
Re: The Louis Berger Wetland Bank
Action ID. 200220840
Monitoring Report: Year 4 (JR-5035)
Dear Mr. Dorney:
i2 o?9Z
The Louis Berger Group, Inc. is pleased to submit the above-mentioned Monitoring Report for
Year 4. We have distributed copies directly to all MBRT members. We look forward to seeing
you at our scheduled site visit on February 22, 2008.
Should you have any comments or questions or require further information, please do not
hesitate to call me at 919-866-4421.
Sincerely,
THE LOUIS BERGER GROUP, C.

Michael O'Rourke
Sr. Environmental Scientist
enclosure
cc: Ed Samanns
JAN 2 9 2008
01f R QUALM
Vimmbs AND STOROA k RCN
John Dorney
The Louis Berger Group, ?nc
Division of Water Quality
NC Department of Environment and Natural Resources
1650 Mail Service Center
Raleigh, NC 27669-1617
[phone]
Marla Chambers
North Carolina Wildlife Resources Commission
4614 Wilgrove-Mint Hill Rd., Sutie M
Charlotte, NC 28227
[phone]
Kathy Matthews
U.S. Environmental Protection Agency - Wetlands Section
3112 Avondale Court
Raleigh, NC 27613
[phone]
Marella Buncick
US Fish and Wildlife Service
160 Zillicoa Street
Asheville, NC 28801-1038
Beth Harmon
NC Ecosystem Enhancement Program
1652 Mail Service Center
Raleigh, NC 27699-1652
[phone]

1

Louis Berger Wetland Mitigation
Bank -Year 4 Monitoring Report
Rowan County, North Carolina

1
Submitted to:
U.S. Army Corps of Engineers
Wilmington District
Raleigh Regulatory Field Office

Prepared by:
The Louis Berger Group, Inc.
Raleigh, North Carolina
1
1 January 2008
1
a[A@[95\V191
JAN 2 9 2008
DENR - WATER AA""
WEE NDS AND STORMWATER BRANCH
11

TABLE OF CONTENTS

' 1.0 INTRODUCTION .................................................................................................................................. 1
2.0 MONITORING METHODOLOGY ....................................................................................................... 3
' 2.1 Vegetation ................................................................................................................................. 3
2.2 Hydrology ..................................................................................................................................3
' 2.2.1 Groundwater ....................................................................................................3
4
2.2.2 Surface Water .................................... ..............................................................
2.3 Stream Monitoring ...................................................... .............................................................. 4
' 2.3.1 Physical Parameters ........................... .............................................................. 4
2.3.2 Benthic Invertebrates ......................... .............................................................. 4
' 2.3.3 Riparian Vegetation ........................... .............................................................. 5
3.0 MONITORING RESULTS ...................................................... .............................................................. 6
' 3.1 Vegetation ................................................................... ............................................................. 6
3.2 Hydrology .................................................................... ............................................................ 13
' 3.2.1 Groundwater ...................................... ............................................................13
14
3.2.2 Surface Water .................................... ............................................................
3.3 Stream Monitoring ...................................................... ............................................................ 17
' 3.3.1 Physical Parameters ........................... ............................................................ 17
3.3.1.1 Channel Geometry ................... ............................................................17
t 3.3.1.2 Longitudinal Profile ................. ............................................................ 24
3.3.1.3 Channel Bed Materials ............ ............................................................ 32
' 3.3.2 Benthic Invertebrates Sampling Results ...... ............................................................ 33
5
3.3.3 Stream Monitoring Results Summary .......... ............................................................ 3
' 4.0 MAINTENANCE & MANAGEMENT ACTIONS ............................................................................. 37
38
5.0 CONCLUSIONS ....................................................................... ............................................................
6.0 REFERENCES ..................................................................................................................................... 39

1
TOC Page i
1

i

TABLE OF CONTENTS (CONTINUED)
LIST OF FIGURES
' Figure 1 Homestead Site Location Map ............................................................................................ I
Figure 2 Second Creek Site Location Map ........................................................... ............................ 2
' Figure 3
Figure 4 Vegetation Plot Results -Homestead Site ......:::::::::::::::::::::::::::::::::::::...
Vegetation Plot Results - Second Creek Site . ..........................10
.11

' Figure 5
Figure 6 30-70 Percentile Graph, Salisbury, North Carolina.. ... ********,*,***,****** ......
Stream Gauge Data - Homestead Site ..................................................... . *,** ........... - ** ..... * 11
..........................16
Figure 7 Stream Gauge Data - Second Creek Site ................................................ ..........................16
' Figure 8a - 8b Channel Geometry - Homestead Site ...................................................... ..........................18
Figure 8c - 8d Channel Geometry - Homestead Site ..................................................... ..........................19
' Figure 8e Channel Geometry - Homestead Site ..................................................... .......................... 20
Figure 9a - 9b Channel Geometry - Second Creek Site ................................................. .......................... 21
' Figure 9a -
Figure 9c - 9b
9d Channel Geometry - Second Creek Site ........................................................................... 21
Channel Geometry - Second Creek Site ........................................................................... 22

t Figure 9e -
Figure 10a 91 Channel Geometry - Second Creek Site ............................................................................. 23
Longitudinal Profile of the Stream at the Homestead Site: 2004 - 2007 Comparison
(Station 0 to 1,000 ft.) .......................................................................................................27
Figure 10b Longitudinal Profile of the Stream at the Homestead Site: 2004 - 2007 Comparison
(Station 1,000 to 2,400 ft.) ................................................................................................28
Figure l la Longitudinal Profile of the Stream at the Second Creek Site: 2004 - 2007 Comparison
'
Figure l lb (Station 0 to 1,000 ft.) .......................................................................................................29
Longitudinal Profile of the Stream at the Second Creek Site: 2004 - 2007 Comparison
(Station 1,000 to 2,000 ft.) ................................................................................................30
' Figure l lc Longitudinal Profile of the Stream at the Second Creek Site: 2004 - 2007Comparison
(Station 2,000 to 3,100 ft.) ................................................................................................31

1
TOC Page ii

TABLE OF CONTENTS (CONTINUED)
LIST OF TABLES
TABLE 1: SUMMARY OF CIRCULAR PLOT MONITORING IN THE RIPARIAN BUFFER AREA AT THE
HOMESTEAD SITE .........................................................................................................................7
TABLE 2: SUMMARY OF CIRCULAR PLOT MONITORING IN THE RIPARIAN BUFFER AREA AT THE
' SECOND CREEK SITE ...................................................................................................................7
TABLE 3: SUMMARY OF CIRCULAR PLOT TRANSECT MONITORING WITHIN THE WETLAND AREA
AT THE HOMESTEAD SITE ..........................................................................................................8
' TABLE 4: SUMMARY OF CIRCULAR PLOT TRANSECT MONITORING WITHIN THE WETLAND AREA
AT THE SECOND CREEK SITE .................................................................................................. ..9
TABLE 5: A DENSITY COMPARISON OF PLANTED AND VOLUNTEER SPECIES ..................................... 12
' TABLE 6: HERBACEOUS COVER ........................................................................................................................ 12
TABLE 7: GROUNDWATER DATA FOR HOMESTEAD SITE (HS) AND SECOND CREEK SITE (SC) ....... 13
TABLE 8: COMPARISON OF THALWEG ELEVATION AT THE HOMESTEAD SITE ................................... 17
' TABLE 9: COMPARISON OF THALWEG ELEVATION AT THE SECOND CREEK SITE .............................. 17
TABLE 10: STREAM CROSS SECTIONAL CHARACTERISTICS AT THE HOMESTEAD SITE ....................
TABLE 11: STREAM CROSS SECTIONAL CHARACTERISTICS AT THE SECOND CREEK SITE ............... 25
26
TABLE 12: HOMESTEAD CHANNEL BED MATERIAL SURVEY RESULTS .................................................. 32
' TABLE 13: SECOND CREEK CHANNEL BED MATERIAL SURVEY RESULTS ............................................. 33
TABLE 14: HOMESTEAD AND SECOND CREEK BENTHIC SURVEY RESULTS .......................................... 34
' TABLE 15: SUMMARY OF MITIGATION COMPONENTS, YEAR 4 MONITORING RESULTS, AND THE
REQUIRED ACTIONS FOR STREAM MITIGATION ................................................................36
APPENDICES
' Appendix A Site Photographs
Appendix B Plan Sheets
Appendix C Groundwater Well Data

1

TOC Page iii

1
1.0 INTRODUCTION
'
1
' This document presents the methods and results of the fourth year (2007) monitoring program for the
Louis Berger Wetland Bank, located in Rowan County, North Carolina. The monitoring program was
conducted in accordance with the provisions of the Louis Berger Wetland Bank Mitigation Banking
' Instrument approved and signed by the participating regulatory agencies on November 19, 2003.
The bank consists of two sites, the Homestead Site and the Second Creek Site. Both sites are located in
' northwestern Rowan County, North Carolina, within the Yadkin River Basin. The Homestead Site is
located just east of the town of Cleveland. The site is 35 acres in size, and is located on the southern
floodplain of Third Creek.
' The Second Creek Site is located just west of the town of Salisbury. The site is 49 acres in size, and is
located on the northern floodplain of Second Creek, approximately six miles west of the confluence of
Second Creek with the South Yadkin River.
' The location of each site is shown in Figures 1 and 2.

11

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0 625 1,250 2,500
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Source:
Base Map: USGS Topographic Maps.
North Carolina Department of Transportation
Homestead Site
Site Location Map
Location: Rowan County, NC
Date: November 2007
The Louis Berger Group, Inc. Figure
1001 Wade Ave. Ste. 400
Raleigh, NC 27605
0 625 1,250 2,500
Feet
Source:
Base Map: USGS Topographic Maps.
North Carolina Department of Transportation
Second Creek Site
Site Location Map
Location: Rowan County, NC
Date: November 2007
The Louis Berger Group, Inc. Figure
® 1001 Wade Ave. Ste. 400 i
Raleigh, NC 27605

2.0 MONITORING METHODOLOGY
1
The fourth year monitoring methodology detailed in this section was employed in accordance with the
' Mitigation Banking Instrument, Exhibit A.4, Monitoring and Maintenance Plan. Monitoring performed at
the Homestead and Second Creek Sites of the Louis Berger Wetland Bank included an assessment of
vegetation establishment, wetland hydrology, physical and biological stream conditions, and benthic
' sampling.
Five photo stations were established and monumented at the Homestead Site and six photo stations were
established and monumented the Second Creek Site, capturing a full representation of each site.
Photographs of each site are taken at these stations annually and compared to previous years.
Photographs taken at the photo stations in Year 4 are provided in Appendix A.
Plan views of the monitoring station locations at the Homestead and Second Creek Sites are provided in
Appendix B. The cross section locations, groundwater gauge locations, stream gauge locations, vegetation
monitoring plot locations, and photo station locations are depicted on these plans.
2.1 VEGETATION
A stratified random sampling procedure was used to quantify woody stem density estimates and visual
estimates of percent cover of herbaceous species across both sites. Nine (9) transects consisting of 30
' randomly selected circular plots were sampled at the Homestead Site and nine (9) transects consisting of
36 randomly selected circular plots were sampled at the Second Creek Site. The plot center points were
set along transects. The total number of trees and shrubs species were counted and recorded and the
percent cover of herbaceous species was estimated within each circular plot. In consultation with the
' MBRT, the radius of each circular plot was increased from 10 feet to 20 feet starting with Year 3
monitoring to increase the sample area.
' The data collected was analyzed to determine an estimate of the woody stem density within each site.
This estimate was then compared to the performance standard for the first three years of 320 woody stem
species per acre. The fourth year of monitoring requires 288 woody stem species per acre to meet the
' performance criteria. This data will serve as a baseline for the next two years of vegetation monitoring
and management that will determine whether the final year will yield the 260 woody stem species per
acre required by the Mitigation Banking Instrument.
2.2 HYDROLOGY
' 2.2.1 Groundwater
The groundwater hydrology of the Homestead Site and the Second Creek Site were monitored during the
' growing season in accordance with the Mitigation Banking Instrument through the use of shallow
monitoring wells with automatic data loggers. Groundwater data was collected from five monitoring wells
at the Homestead Site and six monitoring wells at the Second Creek Site. The data collected was analyzed
and evaluated against the performance criteria to determine whether or not wetland hydrology was
successfully established. The groundwater data is presented in Appendix C. The performance criteria
defined for both sites required that the first 12 inches below ground surface demonstrate continuous
saturation for at least 5 to 12.5 percent of the growing season, which translates to between 11 and 29 days
Page 3

1
11

under normal weather conditions in Rowan County. The locations of the monitoring wells at the
Homestead Site and the Second Creek Site are depicted on the plan sheets located in Appendix B.
2.2.2 Surface Water
The surface water hydrology at the Homestead Site and at the Second Creek Site was monitored using
stream gauges with automatic data loggers. One stream gauge was installed on each stream. The gauges
were established to compare the surface water level in the streams to the design bankfull stage. The
performance criteria prescribed in the Stream Mitigation Guidelines (USACE, 2003) requires that at least
two bankfull events are documented during the five year monitoring period. If less than two bankfull
events occur during the first five years, the annual monitoring will be required to continue until the
second bankfull event is documented. The two documented bankfull events must occur during separate
monitoring years.
2.3 STREAM MONITORING
Stream monitoring consisted of surveying the dimension, profile, and channel bed material of the stream,
conducting a benthic survey, and assessing the riparian vegetation adjacent to the streams. The monitoring
conducted in Year 1 served as a baseline for comparison to the succeeding four years of monitoring. A
comparison of Year 1 thru Year 4 data is presented in the results section of this report.
2.3.1 Physical Parameters
Stream channel stability was assessed using Rosgen methodologies for measuring fluvial geomorphology.
The dimension and profile of the stream were measured to determine the level of lateral migration and
channel aggradation or degradation. The distribution of channel materials was also determined using the
Wolman (1954) method.
' The Monitoring and Maintenance Plan requires that five monumented cross sections are established and
surveyed at the Homestead Site and six monumented cross sections are established and surveyed at the
Second Creek Site to monitor vertical bed stability. The cross section locations at the Homestead Site and
' the Second Creek Site are depicted on the plan sheets located in Appendix B.
Field measurements of channel geometry included surveying cross sections at representative locations to
adequately capture the range of channel form. At the Homestead Site, monumented cross sections were
established at three riffles and two pools. At the Second Creek Site, monumented cross sections were
established at four riffles and two at pools. Elevations were surveyed at regular intervals along each cross
' section to capture channel geometry, including all major slope breaks and bankfull elevations.
A longitudinal profile was surveyed at the Homestead Site and the Second Creek Site to capture the bed
slope and determine the level of aggradation or degradation. The bed elevation along the thalweg was
surveyed as well as the bankfull elevation.
2.3.2 Benthic Invertebrates
Qualitative benthic invertebrate collection was based upon the Benthic Macroinvertebrate Monitoring
Protocols published by the North Carolina Division of Water Quality (NCDWQ, 2006). The protocol
' recommends the Qual-4 collection method for small streams which have catchments of one square mile or
less (first or second order streams). The collection method requires one kick net sample, one sweep net
sample (using a D-frame net), one leaf-pack sample, and visual collection of samples.
Page 4

' The benthic survey was performed on December 19, 2007. At each sample location, the kick net was
placed at the downstream end of the sample location. Where flow was minimal, flow was manually
' created by physically kicking up sediments from the substrate. The sweep net sample was taken at the
edge of the bank under vegetation, and captured the upper sediment layer beneath the bank. There were
no supporting tree roots to target for collection with the sweep net, as there are few riparian trees of
' significant size present at the two restoration sites. Submerged grass and recently fallen leaves were
inspected for the leaf pack samples.
Once samples were taken, larger debris was rinsed, inspected and ultimately discarded. The remaining
' sample was picked by removing all macroinvertebrates (with a limit of ten per taxa) from the remaining
sample. Collected samples were sent to a NCDWQ certified laboratory for sorting and identification.
Three samples were collected at the Homestead Site. The first sample (HS-01) was taken in a riffle
downstream from Cross Section 2. The second sample (HS-02) was taken in a run. The third sample
(HS-03) was collected downstream of Cross Section 6 in a riffle. The sample locations are depicted on
the plan sheets in Appendix B.
Due to the drought, only two samples were collected at the Second Creek Site. The first sample (SC-01)
was collected not far from the stream gauge in an upstream section within a riffle. The second sample
(SC-02) was taken from a riffle in the mid-section of the stream. The third sample was not collected as
there was no water in the channel downstream of Cross Section 3. The sample locations are depicted on
the plan sheets in Appendix B.
2.3.3 Riparian Vegetation
' The riparian vegetation monitoring was performed at each cross section. Two circular plots with a 10-
foot radius were used, one on each stream bank. A total of ten circular plots were sampled at the
Homestead Site and twelve circular plots were sampled at the Second Creek Site. The total number of
' woody stem species were counted and recorded and the percent cover of herbaceous species was
estimated within each circular plot. The data collected was analyzed to determine the overall woody stem
density within the riparian zone.

1

Page 5

3.0 MONITORING RESULTS
3.1 VEGETATION
Riparian Buffer woody stem density averaged 2,469 stems per acre at the Homestead Site and 1,202
stems per acre at the Second Creek Site. Both sites surpass the target density of 320 stems per acre.
Riparian vegetation plots were collected where cross sectional end points served as plot center points.
Tables 1 and 2 show the results of the Riparian Buffer Area sampling.
For Wetland Areas, the circular plot transect analysis resulted in an average woody stem density of 2,376
woody stems per acre within the Homestead Wetland Area and 1,897 woody stems per acre at the Second
Creek Wetland Area, both of which are significantly above the target density of 320 woody stems per acre
established in the performance standards. Tables 3 and 4 show the Wetland Area sampling results. A plan
view of the Homestead Site and the Second Creek Site illustrating the plot results is provided in Figures 3
and 4.
Tables 1 and 3 provide a summary of the species observed at the Homestead Site, the frequency at which
' they occur and the percent composition for both the Riparian Buffer Area and the Wetland Area,
respectively. The dominant planted tree species, by percent composition, for the Homestead Site are
Quercus lyrata in the Riparian Buffer and Fraxinus pennsylvanica and Quercus lyrata in the Wetland
' Area. The most dominant of volunteer tree species in the wetland area are Acer rubrum and Populus
deltoides. Both Acer negundo and Liquidambar styraciflua are also present at a high frequency but less
than the aforementioned tree species. The dominant shrub in both zones is Cornus amomum.
' Tables 2 and 4 provide a summary of the species observed at the Second Creek Site, the frequency at
which they occur, and the percent composition for both the Riparian Buffer Area and the Wetland Area,
respectively. The dominant tree species for the Second Creek Site are Quercus pagoda in the Riparian
' Buffer and Fraxinus pennsylvanica in the Wetland Area. Along with Quercus Pagoda and Fraxinus
pennsylvanica, a high frequency of Liquidambar styraciflua was observed throughout the sampled plots.
The dominant shrub in the both areas is Cornus amomum.
Several of the species observed during the vegetation monitoring were not part of the as-built planting.
For example, Salix nigra is a volunteer species and is readily establishing at the Homestead Site as well as
the Second Creek Site. Other observed volunteers include Acer rubrum, Acer negundo, Liquidambar
styraciflua, Populus deltoides, Sambucus canadensis, and Ulmus Americana. Green Ash (Fraxinus
pennsylvanica) was planted on both sites and also occurs as a volunteer. No distinction was made
between planted and volunteer individuals of green ash during data gathering and all individuals were
counted as planted in Table 5. The estimated densities, based on percent composition, of planted species
throughout both the Riparian Buffer Areas and the Wetland Areas at both sites is shown in Table 5.
Woody stems that were in the as-built plantings but did not appear or occurred sparingly within the
circular plots were Carpinus caroliniana, Clethra alnifolia, Nyssa biflora and Viburnum nudum..
Page 6

Louis Berger Wetland Bank Year 4 Monitoring Report
' TABLE 1: SUMMARY OF CIRCULAR PLOT MONITORING IN THE RIPARIAN BUFFER AREA AT
TH1 A(11%4F.4ZT1F Ail CTTF.

1

n
1
Plots T
tal Fre
uenc Percent
Species 1 2 3 4 5 6 7 8 9 10 o y
q Composition
Acer rubrum 3 1 1 2 7 0.4 3.93
Alnus serrulata 4 4 1 9 0.3 5.06
Betula ni ra 1 1 0.1 0.56
Cornus amomum 3 4 1 1 4 13 0.5 7.30
Corpus stoloni era 1 1 3 4 9 0.4 5.06
Fraxinus enns lvanica 2 1 3 1 7 0.4 3.93
Platanus occidentalis 5 1 6 0.2 3.37
uercus alcata 1 1 0.1 0.56
uercus 1 rata 3 2 9 8 9 8 9 2 11 5 66 1 37.08
uercus michauxii 1 2 1 4 0.3 2.25
uercus pagoda 2 1 5 8 0.3 4.49
uercus alustris 2 2 1 2 7 0.4 3.93
uercus hellos 2 1 3 6 0.3 3.37
Salix ni ra 21 1 7 3 32 0.4 17.98
Viburnum nudum 2 2 0.1 1.12
Total 28 20 17 16 14 20 10 13 15 25 178
Density per acre b lot 3885 2775 2358 2220 1942 2775 1387 1804 2081 3468 Average Density = 2469(stem/acre)
' TABLE 2: SUMMARY OF CIRCULAR PLOT MONITORING IN THE RIPARIAN BUFFER AREA AT
TNF, SF.C CND C'RF,FK SITE

1
1
1
1
Plots
Total Fre
uenc Percent
Species 1 2 3 4 5 6 7 8 9 10 11 12 q
y Composition
Acer ne undo 1 3 2 1 7 0.33 6.73
Alnus serrulatta 1 2 3 0.17 2.88
Cornus amomum 2 1 1 1 2 1 8 0.50 7.69
Fraxinus enn lvanica 1 2 1 1 2 2 3 12 0.58 11.54
Li uidambar s raci ua 5 1 2 2 1 1 1 13 0.58 12.50
Driodendron tuli i era 1 1 0.08 0.96
Platanus occidentalis 1 1 0.08 0.96
Po ulus deltiodes 1 1 0.08 0.96
uercus alcata 1 2 3 0.17 2.88
uercus lauri olia 1 1 0.08 0.96
uercus 1 rata 4 1 1 1 3 10 0.42 9.62
uercus michaxii 2 2 1 5 0.25 4.81
uercus pagoda 1 2 3 2 3 3 1 15 0.58 14.42
uercus alustris 1 1 2 0.17 1.92
uercus hellos 2 3 3 1 9 0.33 8.65
Salix ni ra 1 1 3 1 3 9 0.42 8.65
Sambucus canadensis 1 1 0.08 0.96
Ulmus alata 1 1 0.08 0.96
Ulmus americana 1 1 2 0.17 1.92
Total # of stems 10 13 7 6 10 7 8 7 8 7 11 10 104
Density per acre b lot 1387 1804 971 832 1387 971 1110 971 1110 971 1526 1387 Average Density = 1202(stem/acre
Page

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Louis Berger Wetland Bank Year 4 Monitoring Report
. . TT T C_ . T?nwroimv nnnrD A DTQnV " PT ANTTTI ANTI Vnl.TTNTFFR CPFC 1VS

Stems Counted Homestead Second Creek
in Year 4 (2007) Riparian Area
Total # of Stems Wetland Area
Total # of Stems Riparian Area
Total # of Stems Wetland Area
Total # of Stems
Total 178 2057 104 1970
Planted 54 514 20 644
Volunteer 124 1543 84 1326
Year 4 % Planted 30 25 19 33
Year 3 % Planted 74 54 69 50
Year 2 % Planted 84 58 73 48
During the monitoring of the vegetation, a visual field inspection of both the Homestead Site and the
Second Creek Site was performed to record predominant herbaceous plant species. Table 6 represents the
observed species at each of the two sites and their relative abundance based on visual observations.
TART Ti A• TTTi URA f FnTTC fYIVF.R
Vegetation Species Homestead Second Creek Comments
A ostis alba x x Common
Andro 0 on erardi x Infrequent
Asters . X x Infrequent
Bidens s pp. X x Common
Carex s pp. X x Infrequent
C erus stri osus x x Common
Dichanthelium clandestinum x x Abundant
Echinochloa walteri x x Abundant
Erechities hieraci olia x x Infrequent
Eri eron canadensis x x Infrequent
Juncus effusus x x Common
Justicia americana x x Infrequent
Leersia oo zoides x x Common
Ludwi is alterni olia x x Common
Mikania scandens x x Frequent-Along Stream Channel
M osotis arvensis x x Infrequent
Oenothera biennis x x Infrequent
Pol ovum spp. x x Common
Rumex cris us x x Common
Sa ittaria lati olia x x Infrequent
Scir us validus x x Infrequent
Solida o s pp. X x Infrequent
Sorghum hale ense x Infrequent
Tri olium ratense x x Infrequent
T ha lati olia x x Infrequent
Source: The Louis Berger Uroup, Inc. 2VU /.
At both the Homestead Site and the Second Creek Site, the herbaceous species that exhibited the greatest
abundance included Juncus effuses, Agrostis alba, Echinochloa walteri, and Dichanthelium clandestinum.
Agrostis and Echinochloa were included within the seed mix applied to this site. Visual monitoring
Page 12

Louis Berger Wetland Bank Year 4 Monitoring Report
' showed that nearly 100 percent cover was achieved within the circular plots that were monitored, as well
as throughout each of the sites.
3.2 HYDROLOGY
3.2.1 Groundwater
Table 7 summarizes the results of groundwater monitoring conducted at the Homestead Site and at the
Second Creek Site. At both the Homestead and Second Creek Site, the monitoring results show
continuous saturation within 12 inches of the ground surface for greater than 12.5 percent of the growing
season for all but two of the monitoring wells, which still met the wetland criteria with continuous
saturation within 12 inches of the ground surface for more than 5 percent of the growing season. The data
provided meets the wetland hydrology performance criteria established in the Mitigation Banking
Instrument. The two wells that did not exceed saturation for more than 8 percent of the growing season
were both not functioning in the first month of the growing season. Based on previous performance and
observable trends in the wells it is very likely each would have exceeded the annual criteria.
TABLE 7: GROUNDWATER DATA FOR HOMESTEAD SITE (HS) AND SECOND CREEK
SITE (SC)
Monitoring
Well 5% 5 - 8% 8 -12.5% > 12.5% Actual % Number of
Consecutive Days Dates Meeting Success (Longest
Consecutive Period)
HS-O1 X 6.1 15 Apr. 10 - Apr.24
HS-02 X 18.0 44 Mar. 18 - Apr. 30
HS-03 X 22.1 54 Mar. 18 - May 10
HS-04 X 16.0 39 Mar. 18 - Apr. 25
HS-05 X 12.7 31 June 2 -July 2
SC-01 X 13.3 32 June 24 -July 25
SC-02 X 18.7 45 Mar. 18 - May 1
SC-03 X 14.9 36 Mar. 18 - Apr. 22
SC-04 X 15.4 37 Mar. 18 - Apr. 23
SC-05 X 7.1 17 Apr. 14 - Apr. 30
SC-06 X 19.9 48 Mar. 18 - May 4
Notes:
Calculations based on 241-day growing period from March 18 through November 3.
12.5 percent of the growing season is approximately 31 days.
Percentages shown represent the longest consecutive number of days (not cumulative).
Page 13

Louis Berger Wetland Bank Year 4 Monitoring Report
The precipitation data from water year 2007 was compared to the last 24 years of data. to characterize the
' precipitation recorded for this water year as compared to historical hydrologic conditions. Figure 5
presents the data from water year 2007 and the 30th and 70th percentile of all precipitation data within the
period of record. The results of the analysis indicate that the precipitation recorded in 2007 (calendar and
monitoring year) was generally below the average range. Of the eight months within the growing season,
only three months (April, June and October) appeared average while the reminder of the growing season
was much drier than average.
' Charts depicting the groundwater data for each individual well at the Homestead Site and the Second
Creek Site are located in Appendix C. These graphs display the groundwater elevation in feet and
precipitation in inches. The data gaps were due to instrument or battery failure. The data collected shows
' that throughout the months of March to November the sites demonstrated consecutive saturation within
12 inches of the ground surface needed to meet the performance criteria standards. Due to the extreme
drought and below average precipitation recorded throughout the growing season (March, May, July and
August) (see Figure 5: Precipitation Data and 30'h and 70th Percentile Graph), it is likely that the
t percentage of saturation would have been higher for all gauges at both sites.
3.2.2 Surface Water
Figure 6 illustrates the Homestead Site stream gage data, which shows the water surface elevation in feet
' as well as the precipitation in inches from January 1, 2007 through December 18, 2007. The design
bankfull elevation for the Homestead Site is 683.18 feet (NGVD). The stream surface water surpassed the
bankfull stage during one storm event within the monitored period, occurring on April 14, 2007.
' Figure 7 illustrates the Second Creek Site stream gage data, which shows the water surface elevation in
feet as well as the precipitation in inches from January 1, 2007 through December 18, 2007. The design
bankfull elevation for the Second Creek Site is 653.45 feet (NGVD). The stream surface water surpassed
' the bankfull stage during two storm events within the monitored period, occurring on January 8 and
March 2, 2007.
' Bankfull stream flow criteria has been met because at least one stream flow exceeding bankfull stage
occurred during monitoring years 1 and 2 at both sites.

' Page 14
1
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Louis Berger Wetland Bank Year d Monitoring Report
Figure 6 Stream Gauge Data - Homestead Site
685.0
684.5
684.0
D
v 683.5
i
z
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0
682.5
w
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681.5
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-Water Surface Elevation (ft. NGVD) - Precipitation (in.)
Figure 7 Stream Gauge Data - Second Creek Site
Second Creek Stream Gauge
655.00
654.50
654.00
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653.50
z
653.00
0
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652.00
651.50
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-Channel Bed Elevation (ft. NGVD) - Bankfull Elevation (ft. NGVD)
-Water Surface Elevation (ft. NGVD) -Precipitation (in.)
Page 16

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Louis Berger Wetland Bank Year 4 Monitoring Report
3.3 STREAM MONITORING
3.3.1 Physical Parameters
3.3.1.1 Channel Geometry
Five monumented cross sections were surveyed at the Homestead Site and six monumented cross sections
were surveyed at the Second Creek Site to monitor vertical bed stability. Illustrations of the cross sections
are presented in Figures 8a through 8e for the Homestead Site and Figures 9a through 9c for the Second
Creek Site. In general, the channel geometry remained stable. Slight variations were detected at the
Homestead site; the pools deepened and widened slightly and the riffles narrowed slightly. Slight
variations detected at the Second Creek included a slight widening of the riffles on average and the
average pool depth increased slightly.
To quantifiably assess if the channel experienced degradation or aggradation, the measured thalweg
elevation at each cross section was compared. As represented in Table 8, the thalweg elevation at the
Homestead Site varied slightly from 2006 to 2007. The largest variation occurred at cross section 5 where
the thalweg elevation rose approximately 0.34 feet, closer to the elevation as measured in 2004. It is
suspected that this elevation increase was due to low-flow and no-flow conditions (due to the drought
conditions) depositing sediment in this reach. Overall, the thalweg elevation at the Homestead Site
remained essentially unchanged, with an average change of approximately 0.11 feet. The average change
in thalweg elevation at the Second Creek Site is negligible resulting in an average difference of 0.09 feet
(Table 9). Due to the unconsolidated channel substrate (silt and sand) at the site, the slight variation in
thalweg elevations can be attributed to the varied placement of the survey rod on the unconsolidated
channel bottom as the surveys were being conducted. .
TABLE 8: COMPARISON OF THALWEG ELEVATION AT THE HOMESTEAD SITE
FROM 2004 THROUGH 2007
Thalwe Elevation Difference in Elevation
Cross
Section 2004
ft. 2005
ft. 2006
ft. 2007
ft. 2004-2005
ft. 2005-2006
ft. 2006-2007
ft. Average
Difference
1 674.25 674.69 674.44 674.75 0.44 -0.25 0.31 0.17
2 674.45 674.57 674.67 674.68 0.12 0.10 0.01 0.08
3 674.26 674.31 674.37 674.24 0.05 0.06 -0.13 -0.01
4 673.39 673.47 673.72 673.74 0.08 0.25 0.02 0.12
5 672.64 672.59 672.60 672.94 -0.05 0.01 0.34 0.10
Average difference = 0.13 0.03 0.11 0.09
TABLE 9: COMPARISON OF THALWEG ELEVATION AT THE SECOND CREEK SITE
FROM 2004 THROUGH 2007
Thalwe Elevation Difference in Elevation
Cross
Section 2004
ft. 2005
ft. 2006
ft. 2007
ft. 2004-2005
ft. 2005-2006
ft. 2006-2007
ft. Average
Difference
1 650.88 650.76 650.88 650.76 -0.12 0.12 -0.12 -0.04
2 649.03 649.14 649.01 649.15 0.11 -0.13 0.14 0.04
3 649.77 649.67 649.75 649.54 -0.10 0.08 -0.21 -0.08
4 647.55 647.90 647.69 648.16 0.35 -0.21 0.47 0.20
5 649.07 648.90 649.11 649.10 -0.17 0.21 -0.01 0.01
6 648.67 648.75 648.65 648.71 0.08 -0.10 0.06 0.01
Average di ference = 0.03 -0.005 0.09 0.03
Page 17

Louis Berger Wetland Bank Year 4 Monitoring Report
Figure 8a - 8b Channel Geometry - Homestead Site
Homestead
Cross Section 1
678.00
677.00
676.00
x
c
0
m
m
w 675.00
674.00
673.00
0.0 10.0
?-Channel Geometry - 2004
- Channel Geometry - 2007
679.00
678.00
677.00
0
0
m
a>
ED 676.00
675.00
20.0 30.0 40.0
Width from River Left to Right (ft.)
Channel Geometry - 2005
-? Bankfull
Homestead
Cross Section 2
50.0 60.0
-- Channel Geometry - 2006
Bank Pins
674.00
0.0 5.0 10.0 15.0 20.0 25.0 30.0
Width from River Left to Right (ft.)
-+ -Channel Geometry - 2004 -f- Channel Geometry - 2005 w Channel Geometry - 200E
-*-Channel Geometry - 2007 --*-- Bankfull Bank Pins
35.0
Page 18
Louis Berger Wetland Bank Year 4 Monitoring Report
Figure 8c - 8d Channel Geometry - Homestead Site
Homestead
Cross Section 3
678.00
677.00
676.00
c
0
m
a?
w 675.00
674.00
673.00
0.0
5.0
-* Channel Geometry - 2004
_4*-- Channel Geometry - 2007
30.0 35.0 40.0
- t Channel Geometry - 2006
Bank Pins
10.0 15.0 20.0 25.0
Width from River Left to Right (ft.)
-F Channel Geometry - 2005
-* Bankfull
Homestead
Cross Section 4
677.00
676.00
75.00
C,
0
CU
a?
w674.00
673.00
672.00
0.0
5.0 10.0
-s Channel Geometry - 2004
--x-- Channel Geometry - 2007
15.0 20.0 25.0 30.0 35.0 40.0
Width from River Left to Right (ft.)
-e- Channel Geometry - 2005 )- Channel Geometry - 2006
--*- Bankfull Bank Pins
Page 19
Louis Berger Wetland Bank Year 4 Monitoring Report
Figure 8e
Homestead
Cross Section 5
677.00
676.00
675.00
c
0
m
m
w 674.00
673.00
672.00
0.0
Channel Geometry - Homestead Site
5.0 10.0 15.0
t Channel Geometry - 2004
- Channel Geometry - 2007
20.0 25.0 30.0 35.0 40.0 45.0 50.0
Width from River Left to Right (ft.)
-F Channel Geometry - 2005 w Channel Geometry - 2006
-e-Bankfull Bank Pins
Page 20
Loads Berger Wetland Bank Year 4 Monitoring Report
Figure 9a - 9b Channel Geometry - Second Creek Site
Second Creek
Cross Section 1
654.00
653.00
w 652.00
c
0
m
0
ED 651.00
650.00
649.00
0.0
653.00
652.00
651.00
c
0
m
m
w 650.00
5.0
--*-Channel Geometry - 2004
-+-- Channel Geometry - 2007
649.00
648.00
0.0 5.0 10.0
Channel Geometry - 2004
- Channel Geometry - 2007
10.0 15.0 20.0 25.0 30.0 35.0
Width from River Left to Right (ft.)
--*-Channel Geometry - 2005 -w Channel Geometry - 2006
-e-- Bankfull - 2006 Bank Pins
Second Creek
Cross Section 2
15.0 20.0 25.0 30.0
Width from River Left to Right (ft.)
-a Channel Geometry - 2005
--e- Bankfull
35.0 40.0 45.0
-- Channel Geometry 2006
Bank Pins
Page 21
Louis Berger Wetland Bank Year 4 Monitoring Report
Figure 9c - 9d Channel Geometry - Second Creek Site
Second Creek
Cross Section 3
653.00
652.00
651.00
C
O
c6
N
uw 650.00
649.00
648.00
0.0
5.0 10.0
-* Channel Geometry - 2004
---x- Channel Geometry - 2007
652.00
651.00
650.00
c
0
N
W 649.00
648.00
647.00
0.0 5.0 10.0
t Channel Geometry - 2004
-x Channel Geometry - 2007
15.0 20.0
Width from River Left to Right (ft.)
-a-- Channel Geometry - 2005
-9- Bankfull
Second Creek
Cross Section 4
25.0 30.0 35.0
-- Channel Geometry - 2006
Bank Pins
15.0 20.0 25.0 30.0 35.0 40.0
Width from River Left to Right (ft.)
-Channel Geometry - 2005 -w -Channel Geometry - 2006
? Bankfull Bank Pins
Page 22
Louis Berger Wetland Bank Year 4 Monitoring Report
Figure 9e - 9f Channel Geometry - Second Creek Site
Second Creek
Cross Section 5
652.00
651.00
650.00
x
c
0
m
w 649.00
648.00
647.00
0.0
5.0 10.0
a Channel Geometry - 2004
Channel Geometry - 2007
25.0 30.0 35.0
Channel Geometry - 2006
Bank Pins
15.0 20.0
Width from River Left to Right (ft.)
Channel Geometry - 2005
?- Bankfull
Second Creek
Cross Section 6
652
651
650
0
m
aD
w 649
648
647
0
5
t Channel Geometry - 2004
- Channel Geometry - 2007
10 15 20
Width from River Left to Right (ft.)
-f- Channel Geometry - 2005
--e- Bankfull
25 30
Channel Geometry - 2006
Bank Pins
35
Page 23

7

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Louis Berger Wetland Bank Year 4 Monitoring Report
The bankfull stage, as determined during the stream channel design, was used to compare stream
geometry, such as the calculated cross sectional area at bankfull, width at bankfull, and depth at bankfull.
At the Homestead Site, the average riffle cross sectional area slightly decreased from 7.2 sq-ft in 2006 to
5.9 sq-ft in 2007. The average riffle width at bankfull slightly decreased from 13.6 feet in 2006 to 10.2
feet in 2007. The average riffle depth at bankfull remained unchanged (1.3 feet in 2006 and 2007). The
average pool cross sectional area changed little from 2006 (16.8 sq-ft) to 2007 (15.7 sq-ft) and the
average pool depth at bankfull remained essentially unchanged (1.7 feet in 2006 to 1.6 feet in 2007). A
comparison of cross section characteristics for the Homestead Site between monitoring years 1, 2 and 3 is
provided in Table 10.
At the Second Creek Site, the average riffle cross sectional area slightly increased from 5.0 sq-ft in 2006
to 5.9 sq-ft in 2007. There was no significant change in average riffle depth at bankfull (1.3 feet in 2006;
1.4 feet in 2007). The average riffle width at bankfull slightly increased from 7.2 feet in 2006 to 8.3 feet
in 2007. The average pool cross sectional area at bankfull decreased from 23.6 sq-ft in 2006 to 22.2 sq-ft
in 2007 (which is closer to the 2004 result of 20.3 sq-ft). The average pool depth at bankfull increased
slightly (2.5 feet in 2006; 2.1 feet in 2007). A comparison of cross section characteristics for the Second
Creek Site between monitoring years 1, 2, 3 and 4 is provided in Table 11.
3.3.1.2 Longitudinal Profile
The longitudinal profile was surveyed through the thalweg of the channels and captured all notable slope
breaks at the Homestead Site and the Second Creek Site. Also captured at each surveyed point, was the
bankfull elevation and water surface elevation. Figures 10 and 11 illustrate the bed elevations, bankfull
elevations and water surface elevations surveyed along the longitudinal profile at the Homestead Site and
the Second Creek Site. The overall slope of the Homestead Site is approximately 0.16 percent and the
overall slope of the Second Creek Site is approximately 0.19 percent. The pool and riffle periodicity
observed throughout the project reach is illustrated as the abrupt breaks in slope on the longitudinal
profile.
The majority of variations in thalweg overlays are likely due to the difference in stationing that occurs
year to year when the tape measure is laid along the stream channel during the longitudinal profile survey.
The distance between sections may increase or decrease each year which would cause the stationing not
to match from year to year. For example, based on the 2006 longitudinal profile stationing for the Second
Creek Site, cross-section five had a station of 2,309 and a thalweg elevation at 648.80. According to the
2007 longitudinal profile stationing, cross-section five had a station of 2,361 and a thalweg elevation at
648.67. This is a difference of 52 linear feet and 0.23 feet of difference in elevation; however, based on
the cross section data (which is surveyed annually at exactly the same stream location), the thalweg
elevation only varied by approximately 0.01 feet between 2006 and 2007.
Another variation in thalweg overlays resulted from including survey points at the deepest part of the
pools during the 2006 and 2007 year's monitoring. These survey points are particularly evident in the
longitudinal profile for the Second Creek Site (Figure l la-11c.)
Page 24

Louis Berger Wetland Bank Year 4 Monitoring Report
' TABLE 10: STREAM CROSS SECTIONAL CHARACTERISTICS AT THE
HOMESTEAD SITE

1

1

F

P
0

0

1

Cross Calendar Monitor Width Maximum Depth Cross Sectional Area
Section Year Year at Bankfull at Bankfull at Bankfull
2004 1 28.9 2.4 30.1
Cross 2005 2 29.0 2.0 29.1
Section 2006 3 30.2 2.2 27.6
1
2007
4
27.6
1.9
22.8
2004 1 7.5 1.8 8.8
Cross 2005 2 10.2 1.7 9.0
Section 2006 3 8.0 1.6 7.7
2
2007
4
8.4
1.6
7.4
2004 1 12.9 1.0 6.2
Cross 2005 2 14.8 1.0 6.9
Section
2006
3
13.4
0.9
5.0
3 2007 4 15.9 1.1 6.4
2004 1 10.6 1.6 7.3
Cross 2005 2 12.7 1.2 7.8
Section 2006 3 19.1 0.9 6.7
4
2007
4
11.4
0.9
4.4
2004 1 14.3 1.7 13.3
Cross 2005 2 15.9 1.8 13.5
Section 2006 3 21.3 2.0 17.7
5
2007 4 26.0 1.7 17.9
Page 25

Louis Berger Wetland Bank Year 4 Monitoring Report
TABLE 11: STREAM CROSS SECTIONAL CHARACTERISTICS AT THE
SECOND CREEK SITE

C

1
1
0
n

Cross Calendar Monitor Width Maximum Depth Cross Sectional Area
Section Year Year at Bankfull at Bankfull at Bankfull
2004 1 7.6 1.4 6.3
Cross 2005 2 7.0 1.5 5.6
Section 2006 3 7.7 1.4 5.8
1
2007
4
8.0
1.5
6.2
2004 1 19.0 2.3 24.1
Cross 2005 2 18.1 2.2 20.7
Section 2006 3 20.0 2.3 24.4
2
2007
4
19.4
2.1
21.9
2004 1 6.7 1.1 4.5
Cross 2005 2 7.3 1.2 5.0
Section 2006 3 6.7 1.1 3.6
3
2007
4
9.0
1.4
5.8
2004 1 21.6 2.7 25.2
Cross 2005 2 15.1 2.2 18.8
Section 2006 3 24.1 2.6 22.7
4
2007
4
20.5
2.1
22.2
2004 1 9.1 1.2 5.2
Cross 2005 2 10.9 1.3 5.7
Section 2006 3 8.4 1.1 4.7
5
2007 4 9.3 1.1 5.1
2004 1 7.0 1.5 5.9
Cross 2005 2 6.2 1.4 5.5
Section 2006 3 6.0 1.5 5.9
6
2007 4 6.9 1.4 6.4
Page 26
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Q

Louis Berger Wetland Bank Year 4 Monitoring Report
3.3.1.3 Channel Bed Materials
' The channel bed materials at the Homestead Site and the Second Creek Site primarily consist of silt, clay,
and sand. The median grain size (1350) for all cross sections at both sites is approximately 0.1 mm. The
results of the channel bed material survey are presented in Tables 12 and 13. The Homestead Site channel
materials shifted to a lower percentage of silt this monitoring year (89 percent in 2006 to 68 percent in
2006). The channel bed material at the Second Creek Site remained virtually unchanged between 2005
and 2007. The percentage of silt (on average) in 2005 was approximately 83 percent, the 2006 percentage
slightly increased to 87 percent, and the 2007 the percentage of silt within the channel slightly decreased
' to 81 percent.
TABLE 12: HOMESTEAD CHANNEL BED MATERIAL SURVEY RESULTS

i
it
M Percent b Substrate T e
Cross D50 Calendar ng
on
or
Section (mm) Year Year Silt/cla Sand Gravel Cobble Boulder Bedrock
2004 1 50 50 0 0 0 0
Cross 2005 2 69 31 0 0 0 0
Section 0.01
2006
3
92
8
0
0
0
0
1 2007 4 73 27 0 0 0 0
2004 1 59 40 1 0 0 0
Cross
2005
2
54
46
0
0
0
0
Section 0.01 2006 3 100 0 0 0 0 0
2 2007 4 71 29 0 0 0 0
2004 1 60 40 0 0 0 0
Cross 2005 2 35 65 0 0 0 0
Section 0.01
2006
3
63
37
0
0
0
0
3 2007 4 48 52 0 0 0 0
2004 1 59 39 2 0 0 0
Cross 2005 2 39 61 0 0 0 0
Section 0.01
2006
3
90
10
0
0
0
0
4 2007 4 66 33 1 0 0 0
2004 1 83 16 0 0 0 0
Cross 2005 2 59 41 0 0 0 0
Section 0.01
2006
3
100
0
0
0
0
0
5 2007 4 84 16 0 0 0 0
Page 32

Louis Berger Wetland Bank Year 4 Monitoring Report
' TABLE 13: SECOND CREEK CHANNEL BED MATERIAL SURVEY RESULTS

u

i
i
M Percent b Substrate Type
Cross Dso Calendar ng
on
tor
Section (mm) Year Year Silt/clay Sand Gravel Cobble Boulder Bedrock
2004 1 32 56 12 0 0 0
Cross 2005 2 47 53 0 0 0 0
Section 0.01 2006 3 70 30 0 0 0 0
1
2007 4 41 56 3 0 0 0
2004 1 83 17 0 0 0 0
Cross 2005 2 97 3 0 0 0 0
Section 0.01
2006
3
81
19
0
0
0
0
2 2007 4 82 18 0 0 0 0
2004 1 100 0 0 0 0 0
Cross 2005 2 90 10 0 0 0 0
Section 0.01
2006
3
80
20
0
0
0
0
3 2007 4 82 18 0 0 0 0
2004 1 N/A N/A N/A N/A N/A N/A
Cross 2005 2 74 26 0 0 0 0
Section 0.01
2006
3
93
7
0
0
0
0
4 2007 4 91 9 0 0 0 0
2004 1 N/A N/A N/A N/A N/A N/A
Cross
2005
2
100
0
0
0
0
0
Section 0.01 2006 3 100 0 0 0 0 0
5 2007 4 100 0 0 0 0 0
2004 1 N/A N/A N/A N/A N/A N/A
Cross
2005
2
89
11
0
0
0
0
Section 0.01 2006 3 100 0 0 0 0 0
6 2007 4 91 9 0 0 0 0
3.3.2 Benthic Invertebrates Sampling Results
' Samples were collected to assess the benthic invertebrate diversity, tolerance levels, and biotic index at
the Homestead Site and the Second Creek Site. For much of the year exceptional drought conditions
resulted in very low flows and in many places the streams dried up altogether. The absence of aquatic
habitat due to drought conditions during the previous months have affected the macrobenthic invertebrate
' communities. Our results when compared to last years reveal an overall drop in abundance and diversity
at both sites. Ephemeroptera (mayflies) were visually identified during sample collection at one sample
site. No Trichoptera (caddisflies) or Plecoptera (stoneflies) were visually identified at any of the five
' sample sites, nor were any Odonata (dragonflies). Other taxa identified at sampling included crayfish
(Decapoda), aquatic worms (Oligochaeta) and small beetles (Coleoptera). Sample results at both Second
Creek and Homestead indicate the macrobenthic invertebrates in greatest abundance were isopods and
' amphipods. The following table reports sampling results from December 19, 2007.

1
Page 33
1
Louis Berger Wetland Bank Year 4 Monitoring Report
' TABLE 14: HOMESTEAD AND SECOND CREEK BENTHIC SURVEY RESULTS

Homestead Creek Second Cre
- ek
SPECIES T.V. F.F.G. Upper Middle Lower Upper
Middle
Lower
MOLLUSCA
Gastro oda
Basommato hora
L mnaeidae SC
Pseudosuccinea columella 7.7 SC
Ph sidae
Ph sells s p. 8.8 CG 2
Planorbidae *6 SC
G raulus arvus 6 SC
Planorbella s p. 6.8
ARTHROPODA
Arachnoidea
Acariformes 5.5 1
Crustacea
Ostracoda
Coe oda
Cladocera
Da hnidae
Cerioda hnia s p. 1
Iso oda
Asellidae SH
Caecidotea s. 9.1 CG 1 5 28 1 1
Am hi oda CG
Cran on ctidae
Cran on x s. 7.9 CG 8 8 5
Deca oda
Cambaridae 7.5
Procambarus s p. 7 SH 2 1
Insecta
E hemero tera
Baetidae CG
Baetis intercalaris 7 CG 10
He to eniidae Sc
Maccaffertium Stenonema s SC
Le to hlebiidae CG
Le to hlebia s p. 6.2 CG
Odonata
Libellulidae P
Pach di lax lon i ennis 9.9
Pleco tera
Ca niidae SH
Allocapnia sp. 2.5 SH
Page 34
1

C
1

Louis Berger Wetland Bank Year 4 Monitoring Report
Table 14 Continued
Homestead Creek Second Creek
SPECIES T.V. F.F.G. Upper Middle Lower U er Middle Lower
Tricho tera
Limne hilidae
Irono uia s p.
-
Ps chom iidae CG
L e diversa 4.1 SC
Coleo tera
D tiscidae P 2
A abus s p. 8.9 P
H dro hilidae P
Tro isternus s p. 9.7 P
Di tera
Chironomidae
Clinotan us s p. P
Co noneura s p. 6 CG
Microtendi es edellus gp. 5.5 CG
Orthocladius s p. CG
Parachironomus s p. 9.4 CG
Parametriocnemus s p. 3.7 CG
Phaeno sectra uncti es .
Rheocricoto us eminellobus
Tan arsus s p. 6.8 FC
Dixidae CG
Dixa s p. 2.6 CG
Ti ulidae SH
Ormosia s p. 6.3 CG
Ti ula s p. 7.3 S H
Homestead Creek Second Creek
SPECIES T.V. F.F.G. Upper Middle Lower Upper Middle Lower
TOTAL NO. OF ORGANISMS 14 15 33 11 3
TOTAL NO. OF TAXA 5 4 2 2 2 DRY
EPT INDEX 0 0 0 1 0
' 3.3.3 Stream Monitoring Results Summary
The stream monitoring results are compared to the performance criteria defined in the Mitigation Banking
' Instrument to evaluate success. The stream monitoring component and results are presented in Table 15
as well as the actions required to achieve the performance criteria.
1
1
Page 35

Louis Berger Wetland Bank Year 4 Monitoring Report
' TABLE 15: SUMMARY OF MITIGATION COMPONENTS, YEAR 4 MONITORING
RESULTS, AND THE REQUIRED ACTIONS FOR STREAM MITIGATION
Monitoring Component Monitoring Results Actions Required

(1) Photo Reference Sites
Longitudinal photos and lateral Substantial* channel aggradation, Continue to take photographs at the
photos established. Photographs degradation, or bank erosion was not established stations during future
at the cross sections are included observed. monitoring events.
in Appendix A
(2) Plant Survival
Survival plots were established at
monumented cross sections. Tree Homestead: 2,469 (Trees/Acre) > For Homestead and Second Creek
counts were taken and analyzed than required 288 (Trees/Acre). Sites, continue to monitor
against the pre-determined target- establishment of trees and shrubs
species tree per acre survival Second Creek: 1,202 (Trees/Acre) > along stream corridor.
numbers. The locations of the than required 288 (Trees/Acre).
cross sections are located in
Appendix B.
(3) Channel Stability
Cross-sections were established Minimal evidence of bank erosion
and surveyed, and stream
longitudinal profiles were was observed. The channel is not
Monitor stream stability during
surveyed. The locations of the experiencing significant channel aggradation or degradation. future monitoring events.
cross sections are depicted on the
plan sheets, which are located in
Appendix B.
Only 1 out of 5 sample sites produced
(4) Biological Indicators Ephemeroptera, no Plecoptera or Conduct additional monitoring after
Monitored and recorded Trichoptera species were found at any sufficient recovery period from
invertebrate populations using sample sites, amphipods and isopods drought conditions.
Qual 4 standards.
common
* Substantial or subjective determinations of success win ne maae oy LIle IIl1L1gdL10u Z!'PV1nU1 an
confirmed by U.S. Army Corps of Engineers and review agencies.
Page 36

4.0 MAINTENANCE & MANAGEMENT ACTIONS

' The following maintenance and management actions will be implemented at the Louis Berger Wetland
Bank.
' • Berger has contracted with a wildlife and pest control company to provide annual inspection and
removal of beavers from the site.

11

1

Page 37
11

5.0 CONCLUSIONS
The results of the 2007 monitoring performed at the Homestead Site and the Second Creek Site represent
the fourth annual monitoring event for this project. Per the performance criteria defined in the Mitigation
Banking Instrument, one additional monitoring event will be conducted following the procedure
established in 2004.
' The estimated density of woody stems for the Homestead Site is 2,469 woody stems per acre, which is
significantly above the target density of 288 woody stems per acre established in the performance
standards. Quercus lyrata is the dominant tree species, by percent composition, for the Homestead Site
for both the Riparian Buffer Area and Wetland Area. The dominant shrub in both zones is Cornus
' amomum. The estimated density of woody stem species at the Second Creek Site is 1,202 woody stems
per acre, which is higher than the performance criteria of 288 woody stems per acre. The dominant tree
species for the Second Creek Site are Quercus lyrata in the Riparian Buffer and Fraxinus pensylvanica in
' the Wetland Area. The dominant shrub in the both areas is C. amomum. Tables 1 through 5 in Section 3.1
provide a summary of the circular plot transect monitoring results for the Homestead and Second Creek
Sites.
The visual field inspection performed during the monitoring of the vegetation at both the Homestead Site
and Second Creek Site included recording the percent cover provided by herbaceous plant species. The
monitoring results showed that nearly 100 percent cover throughout the sites was achieved. A list of the
' species observed is provided in Table 6 in Section 3.1. The herbaceous species that exhibited the greatest
abundance across both the mitigation sites included Agrostis alba, Echinochloa walteri, Juncus effusus,
and Dichanthelium clandestinum.
' The Homestead Site and the Second Creek Site demonstrated that 4 of the 5 and 5 of the 6 groundwater
wells (respectively) within the wetland areas met the performance criteria indicated in the Mitigation
' Banking Instrument. The results of the hydrology monitoring are summarized in Table 7 in section 3.2.1.
On each site the one well that did not meet the hydrology standard was experiencing technical problems
during the first month of the growing season and likely would have exceeded the criteria if the data was
' captured correctly during that time period.
The stream survey performed at both the Homestead Site and the Second Creek Site demonstrated that the
restored streams are fairly stable. Figures 10 and 11 provide a representative longitudinal profile of the
' streams at both sites. The overall slope of the Homestead Site is approximately 0.16 percent and the
overall slope of the Second Creek Site is approximately 0.19 percent. The pool and riffle periodicity
observed throughout the project reach is illustrated on the longitudinal profile. Overall the stream banks
' are well vegetated and appear stable.
The cross section locations for both sites are provided on the plan sheets located in Appendix B. At the
Homestead Site, the channel thalweg did not significantly change from elevations surveyed in 2006. The
' overall average thalweg elevation has changed by only 0.11-foot from 2006 to 2007. At the Second Creek
Site, the average change in thalweg elevation is negligible resulting in an average difference of 0.05 feet.
The difference in thalweg elevation likely is a result of the unconsolidated channel bottom substrate that
' leads to variations in surveyed channel bed elevation depending on how far the rod sinks into the yielding
channel bed sediments.
' The results of the Year 4 monitoring of the Louis Berger Wetland Bank demonstrate that wetland
hydrology and vegetation performance criteria have been achieved for the majority of the wetland areas,
stable stream reaches with perennial flow have been established within the Homestead and Second Creek
Sites and riparian buffers have been maintained at appropriate densities. Berger will continue to manage
' and monitor the site as directed in the banking instrument.
Page 38

6.0 REFERENCES
Mitsch, William J. 1993. Wetlands. Riparian Wetlands. 14: 452-458.
North Carolina Division of Water Quality (NCDWQ). 2006. Benthic Macroinvertebrate Monitoring
' Protocols for Compensatory Stream Restoration Projects. 401/Wetlands Unit.
The Louis Berger Group, Inc. 2003. Mitigation Banking Instrument.
US Army Corps of Engineers (USACE). 2003. Stream Mitigation Guidelines. Prepared with cooperation
from the US Environmental Protection Agency, NC Wildlife Resources Commission, and the North
Carolina Division of Water Quality.
' Wolman, M.G. 1954. A method of sampling coarse river-bed material. Transactions of American
Geophysical Union. 35: 951-956.

1
1
1

Page 39

i
i
APPENDIX A
SITE PHOTOGRAPHS
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix .4
Page A-0
Photo 1: Homestead Cross Section 1, looking upstream
Photo 2: Homestead Cross Section 1, looking downstream

I

Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-1
Photo 3: Homestead Cross Section 1, facing the left bank
Photo 4: Homestead Cross Section 1, facing the right bank
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-2
Photo 5: Homestead Cross Section 2 looking upstream
Photo 6: Homestead Cross Section 2 looking downstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-3
Photo 7: Homestead Cross Section 2, facing the left bank
Photo 8: Homestead Cross Section 2, facing the right bank
Louis Berger YVetland Bank Year 4 Monitoring Report
Appendix A
Page A-4
Photo 9: Homestead Cross Section 3, looking upstream
Photo 10: Homestead Cross Section 3, looking downstream

Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A

Photo 11: Homestead Cross Section 3, facing the left bank
Photo 12: Homestead Cross Section 3, facing the right bank
Page A-5
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-6
Photo 13: Homestead Cross Section 4, looking upstream
Photo 14: Homestead Cross Section 4, looking downstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
1
Page A-7
Photo 13: Homestead Cross Section 4, looking upstream
Photo 14: Homestead Cross Section 4, looking downstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A

Page A-8
Photo 15: Homestead Cross Section 4, facing the left bank
Photo 16: Homestead Cross Section 4, facing the right bank
' Loads Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-9
Photo 17: Homestead Cross Section 5, looking upstream
Photo 18: Homestead Cross Section 5, looking downstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-10
Photo 20: Homestead Cross Section 5, facing the right bank
Photo 19: Homestead Cross Section 5, facing the left bank
Loans Berger Wetland Bank Year 4 Monitoring Report
Appendix A

Page A-11
Photo 21: Homestead Photo Station 1

Louis Beiger IYetland Bank Year 4 Ifonitoring Report
Appendix A

Page A-12
Photo 26: Homestead Photo Station 6
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix ,4
Page A-13
Photo 27: Second Creek Cross Section 1, looking downstream
Photo 28: Second Creek Cross Section 1, looking upstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-14
Photo 30: Second Creek Cross Section 1, facing right bank
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix ,,I
Page A-15
Photo 31: Second Creek Cross Section 2, looking downstream
Photo 32: Second Creek Cross Section 2, looking upstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-16
Photo 33: Second Creek Cross Section 2, facing left bank
W.-?
Photo 34: Second Creek Cross Section 2, facing right bank
Loris Berger Wetland Bank Year 4 Monitoring Report
Appendix A

Page A-17
J
Photo 35: Second Creek Cross Section 3, looking downstream
Photo 36: Second Creek Cross Section 3, looking upstream

Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-18
Photo 37: Second Creek Cross Section 3, facing left bank
o
Photo 38: Second Creek Cross Section 3, facing right bank
Loads Berger Welland Bank Year 4 Monitoring Report
Appendix A
Photo 39 Second Creek Cross Section 4, looking downstream
x.
Page A-19
Photo 40: Second Creek Cross Section 4, looking upstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix ,4

Page A-20
Photo 41: Second Creek Cross Section 4, facing left bank
. 4,, '_
x
lot
t N(yi
f - 4.? €.
?d s
'A t
? { p 3. £ ..j j ? t a
S ? t ? 1 f
4 # r`
it "i
t ?+5 ' tea}4t} a `? &!''?#?r
k
?¢..? ter, s'° "' , s €`' tfi ' e (i t«? V. ,.
f #? ? '?r?1y4 f
tlp y W X
61
t
t f } 3
s p
Photo 42: Sccond Crcck Cross Sectioii 4, faciriz, i Wdit bail:
Loans Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Photo 43: Second Creek Cross Section 5

downstream
Page A-21
Photo 44: Second Creek Cross Section 5, looking upstream
Louis Berger [Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-22
Photo 45: Second Creek Cross Section 5, facing left bank
Photo 46: Second Creek Cross Section 5, facing right bank
Loztis Berger Ifetland Bank Year 4 Monitoring Report
Appendix A

Photo 47: Second Creek Cross Section
downstream

Page A-23
Photo 48: Second Creek Cross Section 6, looking upstream
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Photo 49: Second Creek Cross Section 6, facing left bank
Page A-24
Photo 50: Second Creek Cross Section 6, facing right bank
Louis Berger Wetland Bank Year 4 Monitoring Repor
Appendix A
Page A-25
Photo 51: Second Creek Photo Station 1
Photo 52: Second Creek Photo Station 2
Louis Berger Wetland Bank Year 4 Monitoring Report
Appendix A
Page A-26
Photo 53: Second Creek Photo Station 3
Photo 54: Second Creek Photo Station 4
Page A-27
Photo 56: Second Creek Photo Station 6

fl

C

1

n

APPENDIX B
PLAN SHEETS

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n

1

APPENDIX C
GROUNDWATER WELL DATA
1
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5-Nov-07
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22-Oct-07 a

8-Oct-07
°
24-Sep-07 o c

10-Sep-07 c
27-Aug-07 ;

13-Aug-07 W
30-Jul-07
16-Jul-07
2-Jut-07 A

18-Jun-07 z
w
4-Jun-07

21-May-07 ?
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7-May-07 Z
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23-Apr-07 c
9-Apr-07 3
26-Mar-07

12-Mar-07 L =
N

26-Feb-07 0 0
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29-Jan-07 W W
15-Jan-07 I I
1-Jan-07
d• M M N N O O
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23-Apr-07 c
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9-Apr-07 3 3

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