HomeMy WebLinkAbout20011206 Ver 1_Year 5 Monitoring Report_20100809S&EC Project No. 6382.E3
OI - k"LoL9
US Army Corps of Engineers
Raleigh Regulatory Field Office
Attn: Ms. Jean Manuele
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
C5
AUG092010
NCDENR - DWQ
Attn: Mr. Eric Kulz
Parkview Building
2321 Crabtree Boulevard
Raleigh, North Carolina
Reference: Year Five Monitoring Report
Mount Vernon Springs Stream and Wetland Restoration
Chatham County, NC
Please find the enclosed Year Five Monitoring Report for the above referenced site. As
you will find in the report, it is our opinion that the stream and wetland components of
the restoration have met the success criteria as described in the approved Monitoring
Plan. Please review the enclosed document and provide any comments at your earliest
opportunity.
We thank you for your assistance to date and look forward to the continued success of
this project. Please contact us to discuss the administration of the mitigation credits for
this site.
Sincerely,
SOIL & ENVIRONMENTAL CONSULTANTS, PA
avid Gain
Project Manager
Attachments: Year Five Monitoring Report dated August 2010
Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolma 27614 • Phonic: (919) 846-5900 • Fax: (919) 846-9467
www.smww.com
Cc: Ms. Elizabeth Rooks, Research Triangle Park Foundation
A
August 6, 2010
Year Five Monitoring Report
for
Mount Vernon Springs Stream &
Wetland Mitigation Site
August 2010
Soil & Environmental
11010 Raven Ridge Road • Raleigh, North Carolina 27614 •
www.SandEC.com
Consultants, PA
Phone: (919) 846-5900 • Fax: (919) 846-9467
Research Triangle Foundation
1.0 INTRODUCTION
1.1 Introduction
This monitoring report has been prepared by Soil & Environmental Consultants, PA (S&EC) in
order to present and evaluate site monitoring data for the period January 1, 2009 through
December 31, 2009, for the Mount Vernon Springs Stream and Wetland Mitigation Site in
Chatham County, North Carolina. This report includes the following:
Project History
Mitigation Components
Hydrologic Monitoring
Vegetation Monitoring
Stream Monitoring
Wildlife
Monitoring Success
Sheet 1 - Monitoring Plan
Appendix A - Groundwater Gauge Data
Appendix B - Vegetation Monitoring Plot Photos
Appendix C - Stream Monitoring and Survey Data
C 1 - Stream Cross-section and Longitudinal Profile Graphs
C2 - Stream Cross-section Photos
1.2 Project History
The Mount Vernon Springs Mitigation Site was restored in order to offset impacts created by the
Research Triangle Park Foundation for stream and wetland impacts associated with the
expansion of Research Triangle Park (RTP). The 32-acre site is located approximately 4 miles
south of Siler City and approximately 2 miles west of Highway 421 in Chatham County, NC
(USGS HUC 03030003, Subbasin 306012). Mitigation includes the restoration of
approximately 4,985 linear feet of stream channel, approximately 7.5 acres of restoration of
prior converted wetlands, the creation of approximately 7.0 acres of wetlands, and approximately
0.35 acres of vernal pools.
Phase I, distributed across the mitigation site and consisting of approximately 1,132 linear feet of
stream and adjacent buffers and wetlands was constructed during the period February 11, 2002 to
March 1, 2002. Phase II, consisting of approximately 3,853 linear feet of stream restoration and
approximately 14.88 acres of wetland restoration, wetland creation, and vernal pool creation, was
constructed during the period March 30, 2004 to May 3, 2004. All construction and planting was
performed by North State Environmental, Inc. (NSE), of Winston-Salem, NC.
The original Year One Monitoring report was submitted for Phase I in July 2003, however, upon
the completion of construction of Phase II, it was agreed to combine the two project phases and
begin full site monitoring in 2005 (Year One).
1.3 Mitigation Components
After the completion of the restoration project, total accrued mitigation credits were tabulated.
Field data were gathered and the data were subsequently evaluated to quantify the cumulative
(Phase I and II) length of stream channel and wetland acreage restored on-site.
Mitigation Type Total
Stream Restoration - Phase I 1,132 linear feet
Stream Restoration - Phase II 3,853 linear feet
Total Stream Length 4,985 linear feet
Wetland Restoration (1:1 replacement
value) 7.52 acres (7.52 credits)
Wetland Creation (3:1 replacement value) 7.01 acres (2.34 credits)
Vernal Pool Creation (3:1 replacement
value) 0.35 acres (0.11 credits)
Total Wetland Acreage 14.88 acres 9.97 credits
To date, three (3) U. S. Army Corps of Engineers (USACE) permits have been issued to the
Research Triangle Foundation, which have debited against available mitigation credits. The
permit Action ID Numbers are identified in the following table:
Action ID Number Compensatory Stream Compensatory Wetland
Mitigation Mitigation
200120436 & 200120437 768 linear feet N/A
200420081 259 linear feet N/A
2001120933 3,308 linear feet 6.23
200800998 255 linear feet N/A
Total Compensatory 4,590 linear feet 6.23 wetland credits
Mitigation Required
Cumulative Compensatory 4,985 linear feet 7.52 acres of wetland
Mitigation Provided by the Mt. restoration (7.52 credits)
Vernon Springs Mitigation Site and 7.35 acres of creation
(2.45 credits)
Remaining Available 395 linear feet 3.74 credits
Mitigation Credits
2.0 MONITORING
The Year One monitoring report was prepared and submitted by S&EC in February 2006 (for
monitoring performed in 2005). 2006 served as Year Two of the required five-year monitoring
period; however, no specific reporting was required. The Year Three monitoring report was
submitted by S&EC in January 2008 (for monitoring performed in 2007). 2008 served as Year
Four of the required five-year monitoring period; however, no specific reporting was required.
This report serves as the final, Year Five Monitoring report for both project phases. Wetland
monitoring occurs annually, with stream surveys occurring in Monitoring Years 1, 3, and 5.
Benthic Monitoring initiated in the spring of 2005 and was performed annually through Year
Three as verbally agreed upon with NCDENR-DWQ staff.
This section includes information concerning; 1) hydrologic monitoring, 2) vegetative
monitoring, 3) stream monitoring, and 4) evaluation of site monitoring success. These data are
provided for comparison with baseline (as-built, 2004), Year One (2005), and Year Three (2007)
monitoring data.
2.1 Hydrologic Monitoring
Hydrologic monitoring data for the 2009 monitoring year is presented in the following section.
Data collected for the monitoring period are presented in Appendix A. A total of eight (8)
Infinities U.S.A. groundwater monitoring gauges numbered MV-1 through MV-8 were installed
on the site. An Infinities U.S.A., rain gauge was also installed on-site. The locations of these
gauges are shown on the Monitoring Plan (Sheet 1 of 1).
Data collected on this and other sites over the past several years indicates that the most likely
times of the year in which soil saturation occurs in wetlands is during the winter and early spring
months. Rainfall patterns during the preceding winter and early spring months are the most
critical of the year relative to successful wetland hydrology for that year. Typically, once the
growing season enters late spring through summer, shallow groundwater levels begin to fall and
also fluctuate rapidly due to high evapotranspiration rates and summer rainfall patterns. Fall is
normally the driest portion of the year.
Rainfall patterns for the 2009 monitoring year are within normal averages. Due to the continuing
malfunction of the on-site rain gauge (which was replaced in 2009 but did not record rainfall
properly), rainfall data collected at the nearby Siler City Airport obtained from the NC Climate
Office CRONOS website were used to compare with on-site conditions. These data show that a
total of 32.38 inches of rainfall fell in the area in 2009. Of this amount, 13.96 inches fell within
the growing season (approximately March 16 through October 16).
Success criteria for wetland hydrology include the saturation of the upper 12 inches of soil for at
least 16 consecutive days during the growing season. During 2008, seven (7) of the eight (8)
gauges on-site met the hydrology requirement with consecutive days of saturation ranging from
18 to 83 consecutive days. One (1) gauge did not meet the hydrology requirement during 2008
(gauge MV-4). Gauge MV-4 showed water within 12 inches of the ground surface for 11
consecutive days during the 2008 growing season. Gauge MV-4 is within the area of dense
Swamp Rose, and evapotranspiration from these plants may have contributed to rapid depletion
of the groundwater in the area. It is important to note; however, that gauge MV-4 did show
groundwater within 12 inches of the ground surface for 65 consecutive days during the 2009
growing season.
During 2009, six (6) of the eight (8) gauges on-site met the hydrology requirement with
consecutive days of saturation ranging from 42 to 137 consecutive days. Two (2) gauges did not
meet the hydrology requirement during 2009 (gauges MV-3 and MV-7) due to gauge loss and/or
malfunction.
During the first gauge download of the 2009 monitoring year, gauge MV-3 was noted to be in
proper working order. On March 3`d, between the first gauge download and the second gauge
download, gauge MV-3 apparently malfunctioned and no data was recorded from this gauge
after that date. Although the gauge appeared to download properly in the field, no data was
present on the data logger and it was assumed that the download had not been successful. It was
also assumed that the data would be retrievable. During the third gauge download, gauge MV-3
was missing and assumed to be stolen. For this reason data was unable to be retrieved from
gauge MV-3. Gauge MV-3 was replaced the same day that it was noted to be missing. Due to
malfunction and loss, the data set from gauge MV-3 is missing the entirety of the 2009 growing
season. Based on historical data (53 consecutive days in 2008, 52 consecutive days in 2007, 63
consecutive days in 2006, and 40 consecutive days in 2005), site observations, and a general
comparison with other nearby gauge data, it is our opinion that had viable data been collected
during the 2009 growing season, the gauge would likely have met the hydrology requirement
during the 2009 growing season.
Gauge MV-7 was not functional and no data could be obtained from it during the first gauge
download of the 2009 monitoring year. This gauge was replaced on May 26, 2009. Due to the
malfunction of gauge MV-7, no data was obtained from this gauge for 72 days during the early
growing season, which is typically the portion of the growing season when groundwater is
closest to the ground surface. Based on historical data (18 consecutive days in 2008, 20
consecutive days in 2007, 23 consecutive days in 2006, and 40 consecutive days in 2005), site
observations, and a general comparison with other nearby gauge data, it is our opinion that had
data been collected during the early, wet portion of the 2009 growing season, the gauge would
likely have met the hydrology requirement for the 2009 growing season.
Based on our site observations and recorded groundwater gauge data, it is our opinion that
the site has continued to perform successfully during the 2008 and 2009 (Years Four and
Five) monitoring seasons with respect to the hydrologic status of the mitigation areas.
2.2 Vegetation Monitoring
Success criteria for vegetation are based on the average number of live stems per acre across the
site. As described in the Mitigation Plan, a mean density of 260 stems per acre is required at the
end of the five-year monitoring period.
Eight (8) sample plots are located across the site adjacent to the groundwater monitoring gauges.
For simplification of records the sample plots are numbered the same as the monitoring gauges
(MVS-1 through WS-8). Each plot is a square, 10 meters (32.8 feet) on each side (100 square
meters, or approximately 1,075 square feet). The locations of sample vegetation plots are
identified on the Monitoring Plan (Sheet 1 of 1). Photos of each vegetation plot are included as
Appendix B.
In performing vegetation counts during 20081 Monitoring Year 4 on this site, an effort was made
to differentiate volunteer specimens of planted species from planted specimens of planted
species. Due to the diversity in vigor of volunteer vs. planted specimens, this task proved
difficult. Some specimens that are apparent volunteers based on counts from previous monitoring
years are identical in vigor and stature to planted specimens previously counted. For this reason,
we present tables representing a count of all stems of beneficial woody species within the
vegetation monitoring plots, regardless of their status as planted or volunteer specimens or
species.
Vegetation counts for Monitoring Year 4 were performed on October 14, 2008 by S&EC.
Vegetation counts for Monitoring Year 5 were performed on May 19 and 26, 2009 by S&EC.
A table indicating the total number of live, beneficial woody stems, regardless of planted or
volunteer status, in each sample plot is included below:
Plot
Numbers MVS
1 MVS
2 MVS
3 MVS 4 MVS
5 MVS
6 MVS
7 MVS
8 Total
Total
Woody
Stems- 33 19 17 Not
Counted* 21 58 23 14 185 +
Plot 4
Year 4
Total
Woody
Stems- 34 15 17 6 21 58 20 16 187
Year 5
See discussion of Swamp xose and Plot 4 on Page 8 of this report.
The average number of stems per sample plot is at least 22.75 stems for Monitoring Year 4, and
23.38 stems for Monitoring Year 5. Based on the vegetation monitoring plots, the overall site
beneficial woody stem density is at least 936 stems per acre for 2008/Monitoring Year 4,
and 946 stems per acre for 2009/Monitoring Year 5. Species diversity is described in the
following tables:
All Beneficial Woody Stems, Plots
Monitoring Year 4 (2008) 1 2 3 4 5 6 7 8 Year 4 Totals
Swamp Chestnut Oak
(Quercus michauxii)
2 Not
Counted
2
3
1
8 (+ Plot 4)
Green Ash
(Fraxinus pennsylvanica)
29
10
8 Not
Counted
16
45
6
1
115 (+ Plot 4)
Unknown Oak
(Quercus spp.)
1
1
1 Not
Counted
3
2
1
9 (+ Plot 4)
River Birch
(Betula nigra)
3
5 Not
Counted
1
4
13 (+ Plot 4)
Elderberry
(Sambucus canadensis) Not
Counted
0 (+ Plot 4)
American Sycamore
(Platanus occidentalis)
5
1 Not
Counted
1
8
1
16 (+ Plot 4)
Black Willow
(Salix nigra) Not
Counted
3
6
9 (+ Plot 4)
Box Elder
(Acer negundo)
3 Not
Counted
3 (+ Plot 4)
Winged Elm
(Ulmus alata) Not
Counted
5
5 (+ Plot 4)
American Elm
(Ulmus americana) Not
Counted
2
2 (+ Plot 4)
Red Maple
(Acer rubrum) Not
Counted
1
1
2 (+ Plot 4)
Unknown Hickory (Carya sp.) Not
Counted
2
2 (+ Plot 4)
Tupelo
(N ssa aquatica) Not
Counted
1
1 (+ Plot 4)
Year 4 Totals 33 19 17 Unknown 21 58 23 14 185 + Plot 4
Plot Live Stem Density 1336 769 688 Unknown 850 2348 931 567
Site Average
Live Stem Density 936 stems per acre is avg. of all 8 plots without
an contribution from Plot 4 (Plot 4 counted as 0).
All Beneficial Woody Stems, Plots
Monitoring Year 5 (2009) 1 2 3 4 5 6 7 8 Year 5 Totals
Swamp Chestnut Oak
(Quercus michauxii)
0
0
2
0
2
0
0
0
4
Green Ash
(Fraxinus pennsylvanica)
29
8
7
4
16
45
6
2
117
Unknown Oak
(Quercus spp.)
1
0
0
1
0
2
6
0
10
Water Oak (Quercus nigra) 0 0 0 0 0 0 1 0 1
River Birch
(Betula nigra)
4
0
5
0
0
0
1
4
14
Elderberry
(Sambucus canadensis)
0
0
0
0
0
0
0
0
0
American Sycamore
(Platanus occidentalis)
0
4
1
0
1
0
3
1
10
Black Willow
(Salix nigra)
0
0
0
0
0
0
3
9
12
Box Elder
(Acer negundo)
0
3
0
0
0
0
0
0
3
Winged Elm
(Ulmus alata)
0
0
0
0
0
6
0
0
6
American Elm
(Ulmus americana)
0
0
0
1
0
2
0
0
3
Red Maple
(Acer rubrum)
0
0
0
0
1
1
0
0
2
Unknown Hickory (Carya s p.) 0 0 0 0 0 2 0 0 2
Southern Hackberry (Celtis
laevigata)
0
0
0
0
1
0
0
0
1
Tupelo
(N ssa a uatica)
0
0
2
0
0
0
0
0
2
Year 5 Totals 34 15 17 6 21 58 20 16 187
Plot Live Stem Density 1376 607 688 243 850 2348 809 647
Site Average
Live Stem Density
946 stems per acre is avg. of all 8 lots.
There is a total of six (6) different planted woody species represented within the eight (8) sample
plots. Diversity increases to a total of fourteen (14) beneficial woody species within the eight (8)
sample plots if volunteer species are included. In general, the vegetation on-site is dense and well
established. Trees on the eastern portion of the site and throughout Phase I are frequently 15 to
20 feet in height. Trees on the remaining site areas are also flourishing and are readily observed
to be 8 to 12 feet in height.
Many volunteer woody and herbaceous species have appeared due to surrounding forests and
mature trees preserved on-site, which provide nearby seed sources. Shrub species on-site include
Blackberries (Rubus sp.), Swamp Rose (Rosa palustris), and Buttonbush (Cephalanthus
occidentalis) among others. Herbaceous vegetation on-site is also quite dense and includes Soft
Rush (Juncus effusus), Goldenrod (Solidago sp. ), Meadow Beauty (Rhexia mariana) and Joe-Pye
Weed (Eupatoriadelphus fistulosus) among many others.
In parts of the site, Swamp Rose has increased to a density that impedes foot travel. One such
area encompasses Vegetation Monitoring Plot 4. For this reason, no count was performed for
Plot 4 during Monitoring Year 4. Swamp Rose is native to Chatham County, North Carolina
(Flora of the Southeast 2009). During the Year 5 vegetation count, an attempt was made to assess
the effect of extremely dense (approximately 95% coverage) Swamp Rose on survivability of
planted stems and recruitment of volunteers within Vegetation Plot 4. A machete was used to cut
a path through the Swamp Rose around the perimeter of the plot and within portions of the plot
itself. Planted stems counted within the plot during Year 5 were large (approximately 10 feet in
height or greater) and appeared in good health. Of the few volunteer stems seen within the plot,
some were in apparent good health in spite of the dense Swamp Rose. Others were thin, with
poor vigor due to shading and weight of Swamp Rose.
In the area surrounding the plot, similar large, vigorous trees were observed protruding above the
Swamp Rose understory. Large tree species observed immediately adjacent to Vegetation Plot 4
include: American Elm, Winged Elm, Green Ash, Red Maple, Sweet Gum, Swamp Chestnut
Oak, and Sycamore. Based on the presence of several vigorous stems of canopy species within
Vegetation Monitoring Plot 4 and its immediate vicinity, we expect an eventual progression
toward a more natural, greater understory species diversity. As those trees which are already
large continue to grow and provide increased shade, Swamp Rose is expected to diminish,
thereby lessening understory competition and allowing other more desirable native species to
thrive.
With an average of over 900 stems per acre during Monitoring Years 4 and 5, the
vegetative component of the mitigation effort has well exceeded the established success
criteria of 260 live stems per acre by the end of Monitoring Year 5.
2.3 Stream Monitoring
Fourteen (14) cross-sections consisting of seven (7) nested riffle-pool pairs were established on-
site and are shown on the Monitoring Layout (Sheet 1 of 1). S&EC completed the stream survey
for Monitoring Year 5 between April 22 and May 12, 2009. Data from the Monitoring Year 5
survey is included as Appendix D along with As-Built, Monitoring Year 3, and Monitoring Year
1 data included for comparison.
NOTE: The as-built section of the Phase I longitudinal profile was not included for
comparison against the subsequent surveys of this section (Station 39+00 to Station
47+80). Due to a difference in survey methods, the overlay of the profiles in this section
of stream inaccurately displays a morphologic departure from the as-built condition. No
such departure was observed during our field visits. Because of the visual assessment in
this stream and the lack of departure in the sections that were surveyed using the same
methods, it is our opinion that this graphical discrepancy does not illustrate actual
stream instability.
Based on visual observation of the entire restored stream channel and in-channel structures,
followed by the comparative analysis of the As-Built, Year One, and Year Three survey data
sets, the restored channels are stable and exhibit little natural departure (vertical or horizontal)
from the as-built conditions.
A series of beaver dams has caused the impounding of select portions of the channel. These
dams are shown and labeled on the stream longitudinal profiles in Appendix D. Although
beavers were not noted to have a detrimental effect on the stream channel in previous years, their
dams have increased in height and length in the past year. Due to the damage to woody
vegetation and the loss of riparian function, a contract for the removal of beavers from the site is
currently being negotiated with Mr. David Woodward (NCSU, retired). After beaver removal,
beaver dams will be breached by hand and the site will be monitored quarterly for beaver activity
for an additional 1-year period. During this monitoring period, any new beaver activity will be
noted and beavers will be removed from the site if needed.
Per the Mitigation Plan, success criteria have been met in that the stream bedform features and
cross-sections have remained stable (i.e. the stream has retained its enhanced Rosgen stream-type
classification) through the current monitoring year. Accordingly, it is our opinion that Year Five
monitoring of the stream channel confirms morphological success.
2.4 Wildlife
In addition to the prescribed monitoring methods described above, incidental wildlife
observations were made while on-site. The restored Mount Vernon Springs Stream and Wetland
Mitigation site appears to be a high quality site with respect to its use by a variety of wildlife
species including mammals, birds, reptiles, and amphibians.
During Monitoring Years 4 and 5, wetlands on-site were documented to be breeding areas for
Spotted Salamanders (Ambystoma maculatum), American Toads (Bufo americanus), Spring
Peepers (Pseudacris crucifer), Upland Chorus Frogs (Pseudacris feriarum), Leopard Frogs
(Rana sphenocephala), Bullfrogs (Rana catesbeiana), Eastern Narrow-mouthed Toads
(Gastrophryne carohnensis), Cope's Gray Treefrogs (Hyla chrysoscelis), and Green Treefrogs
(Hyla cinerea). Successful reproduction was documented on-site for all of the above-listed
amphibian species by observation of breeding adults, egg masses, aquatic larvae, and/or
terrestrial metamorphs. Squirrel Treefrogs (Hyla squirella) were also heard calling and are likely
breeding on-site.
Reptiles incidentally observed on-site include the Five-lined Skink (Eumeces fasciatus), Brown
Snake (Storeria dekayi), Black Racer (Coluber constrictor), and Black Rat Snake (Elaphe
obsoleta). In May 2009, Black Racers and Five-lined Skinks were observed courting and are
very likely nesting on-site.
Birds are common on-site, and include a wide variety of native and migratory species. Bird
species incidentally documented to nest on-site include the Orchard Oriole (Icterus spurius) and
Red-winged Blackbird (Agelaius phoeniceus), pairs of which were observed nesting in trees
planted for the restoration (Sycamore and Green Ash, respectively). Other bird species
commonly seen or heard on-site include: Yellow-breasted Chat (Icteria vixens), Great Crested
Flycatcher (Myiarchus crinitus), Eastern Wood-pewee (Contopus virens), Red-bellied
Woodpecker (Melanerpes carolinus), Eastern Kingbird (Tyrannus tyrannus), Common
Yellowthroat (Geothlypis trichas), Chipping Sparrow (Spizella passerina), Indigo Bunting
(Passerine cyanea), Red-shouldered Hawk (Buteo lineatus), Turkey Vulture (Cathartes aura),
Common Snipe (Gallinago gallinago), Blue-gray Gnatcatcher (Polioptila caerulea), Mourning
Dove (Zenaida macroura), Wood Duck (Aix sponsa), Canada Goose (Branta canadensis), and
Gray Catbird (Dumetella carolinensis).
Mammals incidentally observed on-site include Beaver (Castor canadensis), White-tailed Deer
(Odocoileus virginianus), Virginia Opossum (Didelphis virginiana), Raccoon (Procyon lotor),
and Eastern Cottontail (Sylvilagus floridana).
2.5 Monitoring Success - Years 4 and 5 (2008 and 2009)
Based on vegetation data collected within the sample plots, existing groundwater gauge,
and stream physical data, the site has readily met the and in most cases exceeded the
success criteria as set forth in the mitigation plan.
3.0 REFERENCES:
Flora of the Southeast. 2009. Internet-based search.
"http://www.herbarium.unc.edu/seflora/firstviewer.htm". Accessed 21 May 2009.
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Appendix B
Vegetation Monitoring Plot Photos
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 1 —Year 3 (2007)
Vegetation Monitoring Plot 1 —Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 1 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
)t 2—Year 5 (2009)
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 2—Year 3 (2007)
Vegetation Monitoring Plot 2—Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 2—Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 3 —Year 5 (2009)
Vegetation Monitoring Plot 3 —Year 4 (2008)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 3 —Year 3 (2007)
Vegetation Monitoring Plot 3 —Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 3 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
ir
f;l
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Appendix B
i
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 4 —Year 3 (2007)
Vegetation Monitoring Plot 4 —Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 4 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
��� � h ,IF
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Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 5 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
I
. ;,;� , Y �'�- . �,:�'� ! y Vii'. v ' - at/'i ..•� '�j
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Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 6 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 7 —Year 5 (2009)
Vegetation Monitoring Plot 7 —Year 4 (2008)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 7 —Year 3 (2007)
Vegetation Monitoring Plot 7 —Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 7 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 8 —Year 5 (2009)
Vegetation Monitoring Plot 8 —Year 4 (2008)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 8 —Year 3 (2007)
Vegetation Monitoring Plot 8 —Year 2 (2006)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix B
Vegetation Monitoring Plot Photos
Vegetation Monitoring Plot 8 —Year 1 (2005)
Mount Vernon Springs Stream and Wetland Mitigation Site
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Stream Monitoring and Survey Data
C 1 — Stream Cross-section and Longitudinal Profile Graphs
C2 — Stream Cross-section Photos
C 1 — Stream Cross-section and Longitudinal Profile Graphs
Elevation (feet)
O
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C2 — Stream Cross-section Photos
Appendix C
Cross-section Photos
Year 5 - Cross Section # 1 - Riffle #1 (2009)
Year 3 - Cross Section # 1 - Riffle #1 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 1 - Riffle #1 (2005)
No As -built Photo Available
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 638211
Appendix C
Cross-section Photos
Year 5 - Cross Section # 2 - Pool #1 (2009)
Year 3 - Cross Section # 2- Pool #1 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix (
Cross-section Photos
Year 1 - Cross Section # 2 - Pool #1 (2005)
No As -built Photo Available
Mount Vernon Springs Stream and Wetland Mitigation Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
Appcndix C
Cross-section Photos
Year 5 - Cross Section # 3 - Riffle #2 (2009)
Year 3 - Cross Section # 3 - Riffle #2 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 3 - Riffle #2 (2005)
No As -built Photo Available
Mount Vernon Springs Stream and Wetland Mitigation Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
�l
r
_
r \�k/ter '14A���+r,'� N :+E%i }K�
i 4 1���.
'A
2 >:• y�
Year 1 - Cross Section # 3 - Riffle #2 (2005)
No As -built Photo Available
Mount Vernon Springs Stream and Wetland Mitigation Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
Appendix C
Cross-section Photos
Year 5 - Cross Section # 4 - Pool #2 (2009)
Year 3 - Cross Section # 4 - Pool #2 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
AI)pcn(ii.x C
Cross-section Photos
Year 1 - Cross Section # 4 - Pool #2 (2005)
No As -built Photo Available
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 5 - Riffle #3 (2009)
Year 3 - Cross Section # 5 - Riffle #3 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 5 - Riffle #3 (2005)
As -Built - Cross Section # 5 - Riffle #3 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 6 - Pool #3 (2009)
Year 3 - Cross Section # 6 - Pool #3 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 6 - Pool #3 (2005)
As -Built - Cross Section # 6 - Pool #3 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 7 - Riffle #4 (2009)
Year 3 - Cross Section # 7 - Riffle #4 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 7 - Riffle #4 (2005)
As -Built - Cross Section # 7 - Riffle #4 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 8 - Pool #4 (2009)
Year 3 - Cross Section # 8 - Pool #4 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Cross-section Photos
Year 1 - Cross Section # 8 - Pool #4 (2005)
As -Built - Cross Section # 8 - Pool #4 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 9 - Riffle #5 (2009)
Year 3 - Cross Section # 9 - Riffle #5 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 9 - Riffle #5 (2005)
As -Built - Cross Section # 9 - Riffle #5 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 10 - Pool #5 (2009)
Year 3 - Cross Section # 10 - Pool #5 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 10 - Pool #5 (2005)
As -Built - Cross Section # 10 - Pool #5 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 11 - Riffle #6 (2009)
Year 3 - Cross Section # 11 - Riffle #6 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 1 I - Riffle #6 (2005)
As -Built - Cross Section # 11 - Riffle #6 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 12 - Pool #6 (2009)
Year 3 - Cross Section # 12 - Pool #6 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 12 - Pool #6 (2005)
As -Built - Cross Section # 12 - Pool #6 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 13 - Riffle #7 (2009)
Year 3 - Cross Section # 13 - Riffle #7 (2007)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 1 - Cross Section # 13 - Riffle #7 (2005)
As -Built - Cross Section # 13 - Riffle #7 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1
Appendix C
Cross-section Photos
Year 5 - Cross Section # 14 - Pool #7 (2009)
Year 3 - Cross Section # 14 - Pool #7 (2007)
Mount Vernon Springs Stream and Wetland Mitigation Soil & Environmental Consultants, PA
Year 5 Monitoring Project No. 6382.E1
August 2010
Appendix C
Cross-section Photos
Year 1 - Cross Section # 14 - Pool #7 (2005)
As -Built - Cross Section # 14 - Pool #7 (2004)
Mount Vernon Springs Stream and Wetland Mitigation
Year 5 Monitoring
August 2010
Soil & Environmental Consultants, PA
Project No. 6382.E1