20080868 Ver 2_Appendix G - Vegetation_20180629

APPENDIX G
2017 Vegetation Photographs
2017 Vegetation Data from Six Monitored Creeks
(Data only on CD)

All photos have a 10 -foot pole marked in 1 -foot increments in the center of the photo, 25
feet from the well (although vegetation may obscure the pole).
Jacks Creek vegetation monitoring transect JW2. View from well looking upstream to plot
10. PVC pole in foreground marks the centerline of transect and photo pole is at the next
centerline pole. 19 September 2017.
Jacks Creek vegetation monitoring transect JW2. View from end of transect looking
downstream to plot 1. PVC poles with orange flagging mark the centerline of transect and
poles with pink flagging are the outer shrub plot corners. 19 September 2017.
G-1

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Tooley Creek vegetation monitoring transect TW3. View from well looking downstream to
plot 10. PVC pole marks the centerline of transect. 23 August 2017.
Tooley Creek vegetation monitoring transect TW3. View from end of transect looking
upstream to plot 1. 23 August 2017.
G-10

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Huddles Cut vegetation monitoring transect HMW2. View is downstream to plot 10 from
the beginning of transect. Photo pole in middle is at the centerline of transect. 30 August
2017.
Huddles Cut vegetation monitoring transect HMW2. View is upstream to plot 1 from the end of
transect. 30 August 2017.
G-13

Huddles Cut vegetation monitoring transect HMW5. View is downstream to plot 10 from
the beginning of transect. 30 August 2017.
Huddles Cut vegetation monitoring transect HMW5
end of transect. PVC pole with orange flagging
centerline of transect. 30 August 2017.
G-14
. View is upstream to plot 1 from the
in the center of the photo marks the

Huddles Cut vegetation monitoring transect HMW6. View is upstream to plot 10 from the
beginning of transect. 31 August 2017.
Huddles Cut vegetation monitoring transect HMW6. View is downstream to plot 1 from the
end of transect. 31 August 2017.
G-15

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Huddles Cut vegetation monitoring transect HMW9. View is downstream to plot 10. PVC
pole with orange flagging marks the centerline of transect. 30 August 2017.
Huddles Cut vegetation monitoring transect HMW9. View is upstream to plot 1. 30
August 2017.
G-17

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DCUT11 vegetation monitoring transect DC11W2B. View is downstream to plot 10. PVC
pole with orange flagging marks the centerline of transect. 31 August 2017.
_ r
Arl
� �...Af., -aim �•....��. � ii t-, - - - ''r:.
DCUT11 vegetation monitoring transect DC11 W2B. View is upstream to plot 1. PVC pole
with orange flagging marks the centerline of the transect and poles with pink flagging mark
the outer edge of shrub plots. 31 August 2017.
G-24

DCUT19 vegetation monitoring transect DC19W2A. View is downstream to plot 10. PVC
pole with orange flagging marks the centerline of the transect and poles with pink flagging
mark the outer edge of shrub plots. 7 September 2017.
DCUT 19 vegetation monitoring transect DC19W2A. View is upstream to plot 1. PVC pole
with orange flagging marks the centerline of the transect and poles with pink flagging mark
the outer edge of shrub plots. 7 September 2017.
G-25

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1 4'!
' 1
Ao#A
t X
;91

Duck Creek vegetation monitoring transect DKCW2A. PVC pole in center marks the
centerline of the transect. View is upstream to plot 10. 6 September 2017.
Duck Creek vegetation monitoring transect DKCW2A. View is downstream to plot 1. PVC
pole in middle with orange flagging marks the centerline of the transect. 6 September 2017.
G-27

oil

Appendix G-1. Drinkwater Well 1C Herbs 2017
Appendix G-2. Drinkwater Well 1 C Shrubs 2017
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Mitchella repens
0.23(-0.08-0.53)
1.20(0.48-1.92)
0.30
0.06
Glyceria striata
5.18(-5.92-16.27)
1.90(-0.09-3.89)
0.60
0.18
Campsis radicans
0.25(0.04-0.46)
0.60(-0.64-1.84)
0.30
0.05
Arundinaria gigantea
44.00(31.38-56.62)
21.80(14.14-29.46)
0.90
1.17
Smilax bona-nox
0.20(-0.01-0.41)
0.50(0.09-0.91)
0.30
0.05
Microstegium vimineum
1.93(-0.13-3.98)
4.60(-0.09-9.29)
0.60
0.19
Parthenocissus quinquefolia
0.30(-0.06-0.66)
0.60(-0.12-1.32)
0.30
0.05
Quercus michauxii
1.80(-1.39-4.99)
1.00(0.42-1.58)
0.60
0.12
Bignonia capreolata
1.75(-3.32-6.82)
1.90(-1.62-5.42)
0.40
0.11
Sanicula canadensis
0.03(n/a)
0.10(n/a)
0.10
0.01
Acer rubrum
0.25(0.03-0.47)
0.80(0.22-1.38)
0.60
0.09
Euonymus americanus
0.20(n/a)
0.30(n/a)
0.10
0.02
Dioscorea villosa
0.43(-1.47-2.32)
0.60(-1.42-2.62)
0.20
0.04
Pinus sp.
0.03(n/a)
0.10(n/a)
0.10
0.01
Smilax rotundifolia
0.75(0.16-1.34)
1.30(0.46-2.14)
0.60
0.11
Lespedeza cuneata
0.15(015-0.15)
0.40(-0.01-0.81)
0.30
0.05
Botrychium dissectum
0.03(n/a)
0.10(n/a)
0.10
0.01
Baccharis halimifolia
0.05(n/a)
0.10(n/a)
0.10
0.01
Otis rotundifolia
0.08(n/a)
0.20(n/a)
0.10
0.02
Rubus argutus
0.30(n/a)
0.10(n/a)
0.10
0.02
Toxicodendron radicans
1.65(-0.34-3.64)
3.30(-0.57-7.17)
0.50
0.15
Boehmeria cylindrica
0.15(n/a)
0.20(n/a)
0.10
0.02
Berchemia scandens
0.28(0.17-0.38)
0.50(0.09-0.91)
0.30
0.05
Vaccinium corymbosum
0.40(n/a)
0.10(n/a)
0.10
0.02
Woodwardia virginica
0.13(-0.25-0.50)
0.40(-0.61-1.41)
0.20
0.03
Arisaema triphyllum
0.30(n/a)
0.40(n/a)
0.10
0.02
Liquidambar styraciflua
0.10(n/a)
0.20(n/a)
0.10
0.02
Woodwardia aero/ata
8.50(-24.38-41.38)
5.90(-6.75-18.55)
0.20
0.26
Athyrium asplenioides
0.60(n/a)
1.10(n/a)
0.10
0.04
Eleochris tortillis
0.10(n/a)
0.10(n/a)
0.10
0.02
Appendix G-2. Drinkwater Well 1 C Shrubs 2017
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-30
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Arundinaria gigantea
45.00(26.07-63.93)
47.60(14.62-85.80)
1.00
1.77
Morella cerifera
2.00(2.00-2.00)
0.20(0.20-0.20)
0.20
0.09
Vaccinum corymbosum
3.30(-2.58-9.18)
0.40(0.40-0.40)
0.40
0.16
Smilax bona-nox
0.10(n/a)
0.30(n/a)
0.10
0.03
Campsis radicans
0.05(n/a)
0.10(n/a)
0.10
0.03
Vitis rotundifolia
0.35(-0.20-0.90)
0.50(-0.33-1.46)
0.30
0.10
Baccharis halimifolia
0.05(n/a)
0.10(n/a)
0.10
0.03
Fraxinus pennsylvanica
0.50(n/a)
0.10(n/a)
0.10
0.04
Quercus phellos
0.70(-0.82-2.22)
0.20(0.20-0.20)
0.20
0.07
Smilax rotundifolia
1.05(-0.10-2.20)
4.10(0.00-8.85)
0.40
0.20
Ilex opaca
2.50(n/a)
0.10(n/a)
0.10
0.06
Berchemia scandens
0.10(n/a)
0.10(n/a)
0.10
0.03
Liquidambar styraciflua
8.50(5.97-11.03)
0.30(-0.21-0.89)
0.20
0.18
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.10
0.03
Acer rubrum
6.00(n/a)
0.10(n/a)
0.10
0.11
Fraxinus profunda
2.00(n/a)
0.20(n/a)
0.10
0.06
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-30

Appendix G-3. Duck Creek Well 1B Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value'
Polygonum punctatum
0.20(n/a)
0.10(n/a)
0.10
0.02
Smilax rotundifolia
1.40(-1.49-4.29)
0.70(-0.95-2.35)
0.30
0.07
Arundinaria gigantea
17.00(9.82-24.18)
13.80(8.62-18.98)
0.90
0.59
Eleocharis obtusa
16.10(3.85-28.35)
1.70(0.89-2.51)
0.70
0.29
Toxicodendron radicans
0.20(-0.01-0.41)
0.40(-0.01-0.81)
0.30
0.05
Acer rubrum
0.50(-0.05-1.05)
1.40(0.12-2.68)
0.50
0.10
Carex intumescens
13.30(-2.42-29.02)
1.70(0.79-2.61)
0.70
0.26
Galium tinctorium
0.05(n/a)
0.20(n/a)
0.10
0.02
Mitchella repens
0.13(-0.25-0.50)
1.90(-6.70-10.50)
0.20
0.07
Woodwardia areo/ata
21.90(6.59-37.21)
6.30(1.42-11.18)
0.90
0.48
Rhynchospora caduca
4.20(-2.54-10.94)
2.20(-0.04-4.44)
0.70
0.18
Woodwardia virginica
4.05(0.32-7.78)
7.30(2.52-12.08)
0.70
0.29
Microstegium vimineum
0.90(n/a)
1.40(n/a)
0.10
0.05
Liquidambar styraciflua
0.30(n/a)
0.20(n/a)
0.10
0.02
Glyceria striata
4.20(-11.91-20.31)
0.50(-0.33-1.33)
0.30
0.09
Juncus effusus
0.90(n/a)
0.10(n/a)
0.10
0.02
Ludwigia alternifolia
0.20(n/a)
0.10(n/a)
0.10
0.02
Osmunda cinnamomea
1.50(n/a)
0.10(n/a)
0.10
0.03
Smilax bona-nox
0.10(n/a)
0.10(n/a)
0.10
0.02
Quercus laurifolia
0.20(n/a)
0.20(n/a)
0.10
0.02
Liriodendron tulipifera
0.30(n/a)
0.20(n/a)
0.10
0.02
Parthenocissus quinquefolia
0.03(n/a)
0.10(n/a)
0.10
0.01
Dichanthelium caerulescens
0.80(n/a)
0.40(n/a)
0.10
0.03
Eupatorium capillifolium
0.30(n/a)
0.10(n/a)
0.10
0.02
Pinus sp.
0.10(n/a)
0.10(n/a)
0.10
0.02
Ulmus americana
0.03(n/a)
0.10(n/a)
0.10
0.01
Leucothoe racemosa
1.20(1.20-1.20)
0.70(-0.82-2.22)
0.20
0.05
Saururus cernuus
7.00(n/a)
1.80(n/a)
0.10
0.12
Carex turgescens
0.50(n/a)
0.40(n/a)
0.10
0.03
Berchemia scandens
0.08(n/a)
0.10(n/a)
0.10
0.02
G-4. Duck Creek Well 1B Shrubs 2017
Average percent cover Average number of stems I Frequency ofI Importance
)5% confidence interval) (95% confidence interval) occurrence value'
Arundinaria gigantea
24.50(11.97-37.03)
28.90(14.41-45.68)
1.00
2.05
Ilex opaca
5.30(-13.42-24.02)
0.30(-0.21-0.89)
0.20
0.24
Magnolia virginiana
3.50(0.97-6.03)
0.20(0.20-0.20)
0.20
0.19
Toxicodendron radicans
0.20(n/a)
0.20(n/a)
0.10
0.06
Bignonia capreolata
0.50(n/a)
0.10(n/a)
0.10
0.06
Smilax rotundifolia
0.10(n/a)
0.10(n/a)
0.10
0.05
Decumaria barbara
0.10(n/a)
0.10(n/a)
0.10
0.05
Acer rubrum
2.00(n/a)
0.10(n/a)
0.10
0.10
Vaccinum corymbosum
0.50(n/a)
0.10(n/a)
0.10
0.06
Fraxinus pennsylvanica
1.50(n/a)
0.10(n/a)
0.10
0.09
Baccharis halmifolia
0.10(n/a)
0.10(n/a)
0.10
0.05
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-31

G-5. Duck Creek Well 2A Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Liriodendrontulipfera
1.05(-3.76-5.86)
0.40(-0.61-1.41)
0.20
0.04
Arundinaria gigantea
14.40(3.80-25.00)
12.00(4.68-19.32)
0.80
0.33
Eupatorium caplllifolium
1.40(0.31-2.49)
1.70(-2.37-5.77)
0.30
0.07
Polygonum punctatum
0.70(0.19-1.21)
0.70(-1.83-3.23)
0.20
0.04
Lonicera japonica
1.00(n/a)
0.10(n/a)
0.10
0.02
Liquidambarstyraciflua
0.45(-1.32-2.22)
0.30(-0.21-0.81)
0.20
0.03
Saururus cernuus
15.60(-8.04-39.24)
6.00(-0.24-12.24)
0.30
0.24
Woodwardia virginica
2.60(-4.57-9.77)
2.60(-2.42-7.62)
0.30
0.08
Woodwardia areolata
4.10(-2.55-10.75)
1.80(-1.48-5.08)
0.30
0.09
Parthenocissus quinquefolia
1.53(-1.96-5.01)
0.30(0.30-0.30)
0.30
0.06
Carex intumescens
2.10(0.05-4.15)
0.40(0.40-0.40)
0.40
0.08
Toxicodendron radicans
0.50(-0.33-1.33)
0.30(0.30-0.30)
0.30
0.05
Ludwigia alternifolia
0.10(n/a)
0.10(n/a)
0.10
0.02
Quercus michauxii
2.00(0.15-3.85)
0.60(0.19-1.01)
0.40
0.08
Dichanthelium caerulescens
2.00(2.00-2.00)
1.60(0.59-2.61)
0.20
0.06
Berchemia scandens
0.65(-0.38-1.68)
0.50(0.09-0.91)
0.30
0.05
Juncus effusus
2.00(n/a)
0.10(n/a)
0.10
0.03
Sanicula canadensis
0.10(n/a)
0.20(n/a)
0.10
0.02
Ilex opaca
0.05(n/a)
0.10(n/a)
0.10
0.01
Eunoymous americanus
0.20(n/a)
0.40(n/a)
0.10
0.02
Ulmus americana
0.03(n/a)
0.10(n/a)
0.10
0.01
Acer rubrum
0.08(-0.05-0.20)
0.60(0.60-0.60)
0.20
0.03
Cuphea carthagenesis
0.20(n/a)
0.10(n/a)
0.10
0.02
Eleocharistortilis
1.03(-3.91-5.96)
0.30(-0.21-0.81)
0.20
0.04
Juncuscoriaceous
1.40(0.16-2.64)
0.80(-0.21-1.81)
0.40
0.07
Lindernia dubia
3.00(n/a)
30.00(n/a)
0.10
0.25
Athyrium filix-femina
0.40(n/a)
0.20(n/a)
0.10
0.02
Smilax rotundifolia
0.20(n/a)
0.10(n/a)
0.10
0.02
Campsis radicans
0.60(n/a)
0.30(n/a)
0.10
0.02
Glyceria striata
0.10(n/a)
0.20(n/a)
0.10
0.02
Mitchella repens
0.05(n/a)
0.10(n/a)
0.10
0.01
G-6. Duck Creek Well 2A Shrubs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Berchemia scandens
2.20(0.33-4.07)
1.50(0.37-2.80)
0.70
0.46
Vitis rotundifolia
2.60(-9.54-14.74)
0.20(0.20-0.20)
0.20
0.20
Callicarpa americana
2.50(-5.09-10.09)
0.40(-0.06-1.57)
0.20
0.22
Decumaria barbara
1.00(n/a)
0.20(n/a)
0.10
0.10
Parthenocissus quinquefolia
0.20(0.20-0.20)
0.20(0.20-0.20)
0.20
0.09
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.10
0.04
Juniperus virginiana
0.40(n/a)
0.10(n/a)
0.10
0.06
Quercus laurifolia
0.40(n/a)
0.10(n/a)
0.10
0.06
Acer rubrum
2.50(-5.09-10.09)
0.20(0.20-0.20)
0.20
0.20
Vitis aestivalis
3.00(n/a)
0.10(n/a)
0.10
0.18
Bignonia capreolata
0.10(n/a)
0.10(n/a)
0.10
0.04
Baccharis halmifolia
0.20(n/a)
0.10(n/a)
0.10
0.05
Smilax rotundifolia
0.90(0.58-1.22)
0.90(0.58-1.27)
0.50
0.28
Fraxinus pennsylvanica
1.00(n/a)
0.20(n/a)
0.10
0.10
Liauidambar stvraciflua
0.20(n/a)
0.10(n/a)
0.10
0.05
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-32

Appendix G-7. Duck Creek Well 3A Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value'
Juncuseffusus
3.10(-11.57-17.77)
0.30(-0.21-0.81)
0.20
0.07
Microstegium viminium
25.30(-1.41-52.01)
32.80(-2.02-67.62)
0.70
0.96
Woodwardia areolata
4.10(-1.08-9.28)
1.90(1.07-2.73)
0.30
0.12
Otis rotundifolia
0.13(-0.25-0.50)
0.20(0.20-0.20)
0.20
0.03
Symplocus tinctoria
0.13(-0.001-0.25)
0.30(-0.21-0.81)
0.20
0.03
Acer rubrum
0.20(-0.04-0.44)
1.00(-0.01-2.01)
0.50
0.07
Scutellaria integrifolia
0.18(-0.10-0.45)
0.30(0.30-0.30)
0.30
0.04
Toxicodendron radicans
0.30(0.30-0.30)
0.30(0.30-0.30)
0.30
0.04
Viola sororia
0.85(-0.09-1.79)
1.20(-0.11-2.51)
0.40
0.07
Arundinaria gigantea
10.00(-6.52-26.52)
6.20(-7.04-19.44)
0.30
0.27
Digitaria commutatum
1.20(0.19-2.21)
0.80(-0.21-1.81)
0.20
0.05
Eleocharis tortilis
8.60(1.67-15.53)
2.30(1.13-3.47)
0.80
0.24
Parthenocissus quinquefolia
1.18(-0.83-3.18)
1.00(0.44-1.56)
0.70
0.11
Glyceria striata
2.00(-1.53-5.53)
1.20(0.48-1.92)
0.30
0.08
Woodwardia virginica
0.05(n/a)
0.10(n/a)
0.10
0.01
Mikania scandens
0.30(n/a)
0.20(n/a)
0.10
0.02
Verbena urticifolia
0.40(n/a)
0.10(n/a)
0.10
0.02
Smilax bona-nox
0.25(-0.51-1.01)
0.60(-1.42-2.62)
0.20
0.03
Lidodendrontulipfera
0.40(-0.61-1.41)
0.30(-0.21-0.81)
0.20
0.03
Gelsemium sempervirens
0.33(0.09-0.56)
1.30(-0.18-2.78)
0.50
0.08
Mitchella repens
0.03(n/a)
0.50(n/a)
0.10
0.02
Hypericum/triadendum walteri
0.30(n/a)
0.20(n/a)
0.10
0.02
Pinus seedling
1.90(-0.24-4.04)
1.10(0.20-2.00)
0.40
0.09
Lycopus virginicus
0.70(0.70-0.70)
1.30(1.30-1.30)
0.50
0.08
Erechtites hieraciifolia
0.30(0.30-0.30)
0.10(0.10-0.10)
0.10
0.02
Botrychium dissectum
0.04(0.04-0.04)
0.30(0.30-0.30)
0.20
0.03
Carex intumescens
13.10(13.10-13.10)
1.20(1.20-1.20)
0.50
0.24
Liquidambar styraciflua
0.25(0.25-0.25)
0.40(0.40-0.40)
0.30
0.04
Smilax laurifolia
0.10(0.10-0.10)
0.20(0.20-0.20)
0.10
0.02
Lonicera japonica
0.05(0.05-0.05)
0.10(0.10-0.10)
0.10
0.01
Cuphea carthagenesis
0.10(0.10-0.10)
0.10(0.10-0.10)
0.10
0.01
Berchemia scandens
0.03(0.03-0.03)
0.10(0.10-0.10)
0.10
0.01
Rhynchospora caduca
0.40(n/a)
0.10(n/a)
0.10
0.02
Appendix G-8. Duck Creek Well 3A Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value'
Gelsemium sempervirens
0.15(-0.10-0.40)
0.30(-0.21-0.89)
0.20
0.11
Smilax laurifolia
0.10(n/a)
0.20(n/a)
0.10
0.06
Liquidambar styraciflua
10.70(-1.89-23.29)
1.00(0.12-2.01)
0.50
0.58
Persea palustris
1.90(-0.63-4.43)
0.20(0.20-0.20)
0.20
0.15
Parthenocissus quinquefolia
1.00(n/a)
0.10(n/a)
0.10
0.08
Morella cerifera
1.50(n/a)
0.30(n/a)
0.10
0.10
Otis rotundifolia
0.70(n/a)
0.10(n/a)
0.10
0.07
Campsis radicans
1.00(n/a)
0.10(n/a)
0.10
0.08
Symplocus tinctoria
0.20(n/a)
0.10(n/a)
0.10
0.05
Cvrilla racemiflora
1.50(n/a)
0.10(n/a)
0.10
0.09
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-33

Appendix G-9. Duck Creek Well 4B Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value
Boehmeria cylindrica
2.18(-1.29-5.64)
1.30(-0.18-3.02)
0.50
0.13
Saururus cernuus
1.60(n/a)
0.40(n/a)
0.10
0.05
Microstegium vimineum
34.20(6.89-61.51)
44.30(9.59-84.50)
0.70
1.43
Glyceria striata
0.63(-0.72-1.97)
0.30(0.30-0.30)
0.30
0.06
Eleocharis tortillis
1.30(-2.23-4.83)
0.40(-0.01-0.88)
0.30
0.07
Toxicodendron radicans
0.75(0.39-1.11)
1.90(0.19-3.88)
0.50
0.11
Smilax bona-nox
0.05(n/a)
0.10(n/a)
0.10
0.02
Parthenocissus quinquefolia
0.18(0.08-0.27)
0.50(0.50-0.50)
0.50
0.08
Mitchella repens
0.60(0.21-0.99)
5.30(2.53-8.51)
0.60
0.17
Decumaria barbara
0.05(n/a)
0.10(n/a)
0.10
0.02
Botrychium dissectum
0.05(n/a)
0.20(n/a)
0.10
0.02
Berchemia scandens
0.45(-0.03-0.93)
1.30(0.46-2.27)
0.60
0.11
Carex intumescens
4.80(-4.71-14.31)
1.20(-0.11-2.71)
0.40
0.16
Liquidambarstyraciflua
0.05(0.05-0.05)
0.20(0.20-0.20)
0.20
0.03
Acerrubrum
0.08(0.08-0.08)
0.50(0.09-0.98)
0.30
0.05
Campsis radicans
0.48(-0.51-1.46)
0.40(-0.01-0.88)
0.30
0.05
Carpinus caroliniana
0.08(-0.05-0.20)
0.40(-0.61-1.57)
0.20
0.03
Woodwardia virginica
0.15(n/a)
0.30(n/a)
0.10
0.02
Woodwardia aerolata
0.60(n/a)
0.30(n/a)
0.10
0.03
Polygonum punctatum
0.30(n/a)
0.30(n/a)
0.10
0.02
Lycopus virginicus
0.20(n/a)
1.60(n/a)
0.10
0.04
Vitis rotundifolia
0.15(-0.03-0.33)
0.50(-0.33-1.46)
0.30
0.05
Eunoymous americanus
0.33(-1.07-1.72)
0.60(-0.41-1.77)
0.20
0.04
Sanicula canadensis
0.20(0.20-0.20)
0.90(0.90-0.90)
0.20
0.04
Persea palustris
0.50(0.50-0.50)
0.20(0.20-0.20)
0.20
0.04
Galium tinctorium
0.03(0.03-0.03)
0.10(0.10-0.10)
0.10
0.02
Lonicera japonica
0.40(n/a)
0.70(n/a)
0.10
0.03
Liriodendron tulipfera
0.10(0.10-0.10)
0.10(0.10-0.10)
0.10
0.02
Arisaema triphyllum
0.40(n/a)
0.40(n/a)
0.10
0.03
Appendix G-10. Duck Creek Well 4B Shrubs 2017
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-34
Average percent cover
Average number of stems
I
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
values
Campsis radicans
1.00(n/a)
0.10(n/a)
0.10
0.47
Decumaria barbara
1.20(-1.38-3.78)
0.50(0.09-0.98)
0.30
0.99
Smilax laurifolia
0.10(n/a)
0.20(n/a)
0.10
0.26
Berchemia scandens
0.85(-0.53-2.23)
0.60(0.19-1.08)
0.40
1.05
Parthenocissus auinauefolia
0.20(n/a)
0.10(n/a)
0.10
0.23
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-34

G-11. DC11 Well 2B Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Bignonia capreolata
0.10(n/a)
0.30(n/a)
0.10
0.04
Toxicodendron radicans
1.90(0.99-2.81)
6.00(1.68-10.32)
0.90
0.55
Microstegium vimineum
0.40(-0.63-1.43)
1.50(-2.29-5.29)
0.30
0.15
Botrychium dissectum
0.10(n/a)
0.10(n/a)
0.10
0.03
Saniculacanadensis
0.95(-0.26-2.16)
1.60(-0.01-3.21)
0.60
0.24
Polygonum punctatum
0.10(n/a)
0.10(n/a)
0.10
0.03
Quercus nigra
0.40(n/a
0.10(n/a)
0.10
0.05
Smilax rotundifolia
0.05(n/a)
0.10(n/a)
0.10
0.03
Fraxinus pennsylvanica
0.10(n/a)
0.10(n/a)
0.10
0.03
Lonicera japonica
1.23(-1.80-4.25)
1.90(-0.75-4.55)
0.50
0.25
Athyrium filix-femina
1.80(0.72-2.88)
1.50(0.16-2.84)
0.50
0.27
Woodwardiaaerolata
0.50(-0.01-1.01)
0.50(-0.01-1.01)
0.20
0.09
Saurrus cernus
2.80(-2.22-7.82)
2.10(-1.88-6.08)
0.30
0.31
Boehmeria cylindrica
0.10(n/a)
0.10(n/a)
0.10
0.03
Decumaria barbara
0.50(n/a)
0.20(n/a)
0.10
0.06
Parthenocissus quinquefolia
0.50(n/a)
0.30(n/a)
0.10
0.06
Carex intumescens
0.90(n/a)
0.40(n/a)
0.10
0.09
Appendix G-12. DC11 Well 2B Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Smilax rotundifolia 1.45(-0.08-2.98) 1.00(0.12-2.01) 0.50 0.37
Toxicodendron radicans
10.10(4.69-15.51)
1.20(0.30-2.24)
0.70
0.75
Vitis rotundifolia
1.60(-1.63-4.83)
0.40(-0.01-0.88)
0.30
0.21
Persea palustris
6.00(-6.04-18.04)
0.60(-0.12-1.43)
0.40
0.42
Fraxinus pennsylvanica
0.50(n/a)
0.10(n/a)
0.10
0.06
Bignonia capreolata
0.10(n/a)
0.10(n/a)
0.10
0.05
Ligustrum sinense
7.20(0.28-14.12)
1.90(0.49-3.54)
0.70
0.77
Parthenosissus quinquefolia
0.20(n/a)
0.10(n/a)
0.10
0.05
Decumaria barbara
0.30(-0.21-0.81)
0.20(0.20-0.20)
0.20
0.10
Ilex opaca
2.00(2.00-2.00)
0.20(0.20-0.20)
0.20
0.16
Smilax bona-nox
0.05(n/a)
0.10(n/a)
0.10
0.05
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-35

G-13. DC19 Well 2B Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Woodwardia aerolata
4.60(-0.13-9.33)
1.40(-0.49-3.29)
0.40
0.57
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.10
0.05
Boehmeria cylindrica
0.70(-0.39-1.79)
0.40(-0.01-0.81)
0.30
0.20
Microstegium vimineum
3.30(-10.36-16.96)
3.50(-9.15-16.15)
0.20
0.63
Lonicera japonica
0.50(-1.02-2.02)
2.20(-6.91-11.31)
0.20
0.34
Carex comosa
1.80(-4.27-7.87)
0.20(0.20-0.20)
0.20
0.21
Arisaema triphyllum
0.20(n/a)
0.20(n/a)
0.10
0.07
Woodwardia virginica
0.05(n/a)
0.10(n/a)
0.10
0.05
Bignonia capreolata
0.05(n/a)
0.10(n/a)
0.10
0.05
Saururuscernuus
0.25(-0.51-1.01)
0.30(-0.21-0.81)
0.20
0.13
Itea virginica
1.90(-3.52-7.32)
0.80(-0.69-2.29)
0.30
0.31
Smilax rotundifolia
0.05(n/a)
0.10(n/a)
0.10
0.05
Athyrium filix-femina
0.10(n/a)
0.10(n/a)
0.10
0.06
Appendix G-14. DC19 Well 2B Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Maanolia viroiniana 3.80(-2.45-10.05) 0.30(0.30-0.30) 0.30 0.34
Liquidambar styraciflua
1.30(-2.24-4.84)
0.20(0.20-0.20)
0.20
0.17
Ligustrum sinense
0.50(n/a)
0.20(n/a)
0.10
0.09
Liriodendron tulipifera
0.20(n/a)
0.10(n/a)
0.10
0.06
Vitis rotundifolia
0.50(-0.33-1.33)
0.50(0.09-0.91)
0.30
0.22
Smilax rotundifolia
1.00(-0.37-2.37)
1.10(-0.49-2.69)
0.40
0.39
Arundinaria gigantea
1.00(1.00-1.00)
0.80(-0.21-1.81)
0.20
0.27
Ulmus americana
1.80(-4.27-7.87)
0.20(0.20-0.20)
0.20
0.19
Itea virginica
0.50(n/a)
0.10(n/a)
0.10
0.08
Lonicera japonica
0.50(-0.33-1.33)
0.40(-0.01-0.81)
0.30
0.20
Acer rubrum
1.00(n/a)
0.20(n/a)
0.20
0.15
Carpinus caroliniana
4.70(-0.67-10.07)
0.30(0.30-0.30)
0.30
0.38
Callicarpa americana
0.70(n/a)
0.10(n/a)
0.10
0.09
Quercus alba
1.50(n/a)
0.10(n/a)
0.10
0.12
Berchemia scandens
1.00(n/a)
0.30(n/a)
0.10
0.14
Morella cerifera
0.40(n/a)
0.10(n/a)
0.10
0.07
Smilax bona-nox
0.10(n/a)
0.10(n/a)
0.10
0.06
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-36

Appendix G-15. Huddles Main Well HMW2 Herbs 2017
Average percent cover Average number of stems I Frequency of I Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) occurrence value
Cyperus odoratus
6.10(-12.28-24.48)
0.90(-0.99-2.79)
0.30
0.28
Echinochloa walteri
0.30(n/a)
0.30(n/a)
0.10
0.06
Typha angustifolia
8.40(-5.90-22.70)
1.70(-0.10-3.50)
0.50
0.45
Hydrocotyle verticillata
0.50(n/a)
2.70(n/a)
0.10
0.23
Toxicodendron radicans
0.10(n/a)
0.10(n/a)
0.10
0.05
Morella cerifera
0.20(n/a)
0.10(n/a)
0.10
0.05
Erigeron annuus
0.30(n/a)
0.40(n/a)
0.10
0.07
Ulmus americana
0.80(n/a)
0.20(n/a)
0.10
0.07
Symphyotrichum subulatum
0.30(n/a)
0.10(n/a)
0.10
0.05
Phragmites australis
1.30(-0.22-2.82)
0.80(-1.22-3.32)
0.20
0.15
Appendix G-16. Huddles Main Well HMW2 Shrubs 2017
G-17. Huddles Main Well HMW5 Herbs 2017
Average percent cover
Average number of stems
I
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
values
Baccharis halimifolia
8.30(1.58-15.02)
0.80(0.43-1.23)
0.60
1.78
Ulmus americana
0.50(-0.01-1.01)
0.20(0.20-0.20)
0.20
0.32
Toxicodendron radicans
0.50(n/a)
0.10(n/a)
0.10
0.19
Berchemia scandens
0.10(n/a)
0.10(n/a)
0.10
0.15
Smilax rotundifolia
0.30(-0.21-0.81)
0.40(-0.61-1.57)
0.20
0.42
Smilax bona-nox
0.10(n/a)
0.10(n/a)
0.10
0.15
G-17. Huddles Main Well HMW5 Herbs 2017
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-37
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval) I
occurrence
values
Typha angustifolia
30.80(-7.34-68.94)
12.30(-2.98-27.58)
0.60
1.27
Typha latifolia
1.10(-3.45-5.65)
0.70(-1.83-3.23)
0.20
0.13
Toxicodendron radicans
1.10(-3.45-5.65)
0.80(-1.22-2.82)
0.20
0.13
Polygonum punctatum
4.00(n/a)
3.70(n/a)
0.10
0.25
Smilax rotundifolia
0.40(n/a)
0.10(n/a)
0.10
0.05
Symphyotrichum subulatum
1.30(-0.19-2.79)
0.30(0.30-0.30)
0.30
0.16
Hydrocotyle verticillata
1.70(-1.19-4.59)
7.90(-4.54-20.34)
0.30
0.42
Echinochloa walteri
0.80(-0.29-1.89)
0.80(-0.29-1.89)
0.30
0.16
Cyperus odoratus
9.00(-3.90-21.90)
2.80(-0.73-6.33)
0.30
0.39
Pluchea odorata
0.05(n/a)
0.10(n/a)
0.10
0.04
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-37
Average percent cover
Average number of stems
Frequency of
imponance
Scientific name
(95% confidence interval)
(95% confidence interval) I
occurrence
value'
Toxicodendron radicans
1.20(0.30-2.10)
0.80(0.22-1.38)
0.60
0.78
Morella cerifera
6.50(2.00-11.00)
0.40(0.40-0.40)
0.40
0.77
Smilax rotundifolia
0.30(n/a)
0.20(n/a)
0.10
0.17
Parthenocissus quinquefolia
0.30(n/a)
0.10(n/a)
0.10
0.12
Rubus argutus
0.30(n/a)
0.10(n/a)
0.10
0.12
Baccharis halimifolia
9.00(1.85-16.15)
0.50(0.09-0.91)
0.30
0.89
Ulmus americana
1.00(n/a)
0.10(n/a)
0.10
0.16
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-37

Appendix G-19. Huddles Main Well HMW6 Herbs 2017
Average percent cover Average number of stems I Frequency of I Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) occurrence value
Typha angustifolia
5.00(n/a)
1.80(n/a)
0.10
0.76
Cyperusodoratus
2.00(-1.41-5.41)
1.00(0.08-1.92)
0.40
0.68
Polygonumpunctatum
0.25(-0.51-1.01)
0.50(-0.01-1.01)
0.20
0.29
Symphyotrichum subulatum
0.05(n/a)
0.10(n/a)
0.10
0.11
Hydrolea quadrivalvis
0.40(n/a)
0.40(n/a)
0.10
0.19
Toxicodendron radicans
0.60(n/a)
0.80(n/a)
0.10
0.28
Appendix G-20. Huddles Main Well HMW6 Shrubs 2017
G-21. Huddles Main Well HMW8 Herbs 2017
Average percent cover
Average percent cover
Average number of stems
I
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Baccharis halimifolia
8.00(5.49-10.51)
1.10(0.72-1.48)
0.70
0.90
Toxicodendron radicans
6.80(2.87-10.73)
1.20(0.90-1.50)
1.00
1.00
Morella cerifera
10.20(2.66-17.74)
0.90(0.55-1.25)
0.70
0.92
Persea palustris
1.00(n/a)
0.10(n/a)
0.10
0.11
Ilex opaca
0.30(n/a)
0.10(n/a)
0.10
0.08
G-21. Huddles Main Well HMW8 Herbs 2017
Appendix G-22. Huddles Main Well HMW8 Shrubs 2017
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Polygonum punctatum
33.75(14.96-52.54)
14.00(5.01-22.99)
0.40
0.43
Bolboschoenus robustus
4.25(1.55-6.95)
5.25(2.08-8.42)
0.40
0.19
Toxicodendron radicans
5.50(0.95-10.05)
2.50(0.98-4.02)
0.20
0.11
Pluchea odorata
1.00(n/a)
1.00(n/a)
0.10
0.04
Hydrolea quadrivalvis
1.25(0.89-1.61)
1.50(1.09-1.91)
0.40
0.14
Eupatorium capillifolium
1.00(n/a)
1.00(n/a)
0.10
0.04
Solidago sempervirens var. mexicana
5.00(n/a)
5.00(n/a)
0.10
0.11
Baccharis halimifolia
0.50(n/a)
1.00(n/a)
0.10
0.04
Iva frutescens
1.00(0.38-1.62)
1.33(0.92-1.75)
0.30
0.10
Amaranthus cannabinus
1.00(n/a)
1.00(n/a)
0.10
0.04
Rubus argutus
1.00(n/a)
1.00(n/a)
0.10
0.04
Echinochloa walteri
3.00(n/a)
1.00(n/a)
0.10
0.05
Samolus valerandi spp. Parviflorus
1.50(0.99-2.01)
9.00(2.93-15.07)
0.20
0.16
Symphyotrichum subulatum
3.00(0.98-5.02)
1.00(1.00-1.00)
0.20
0.08
Eupatorium serotinum
4.00(n/a)
1.00(n/a)
0.10
0.06
Osmunda regalis
43.50(11.63-75.37)
4.50(0.96-8.04)
0.20
0.32
Phragmites australis
87.50(73.96-101.04)
46.00(40.28-51.72)
0.40
1.03
Appendix G-22. Huddles Main Well HMW8 Shrubs 2017
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-38
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Iva frutescens
12.00(6.60-17.40)
2.22(1.16-3.28)
0.90
0.47
Toxicodendron radicans
10.50(1.28-19.72)
1.10(0.87-1.33)
1.00
0.41
Baccharis halimifolia
19.00(8.54-29.46)
3.43(0.82-6.04)
0.70
0.55
Sabal minor
4.00(n/a)
1.00(n/a)
0.10
0.12
Morella cerifera
24.00(14.07-33.93)
2.20(1.60-2.80)
0.50
0.47
Rubusargutus
1.50(0.99-2.01)
1.00(1.00-1.00)
0.20
0.12
Ulmus americana
1.00(n/a)
1.00(n/a)
0.10
0.09
Persea palustris
15.00(9.94-20.06)
1.50(0.99-2.01)
0.20
0.28
Rosa palustris
8.00(n/a)
1.00(n/a)
0.10
0.16
Campsis radicans
10.00(n/a)
1.00(n/a)
0.10
0.18
Berchemia scandens
7.00(n/a)
1.00(n/a)
0.10
0.15
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-38

G-23. Huddles Main Well HMW9 Herbs 2017
Appendix G-24. Huddles Main Well HMW9 Shrubs 2017
Average percent cover Average number of stems Frequency of I Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence values
Iva frutescens 14.10(5.94-22.26) 2.600.54-3.661 0.80 1.05
Baccharis halimifolia
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value
Polygonum punctatum
9.30(2.61-15.99)
5.10(2.31-7.89)
0.70
0.91
Cyperus odoratus
1.90(-1.04-4.84)
1.00(-0.24-2.24)
0.40
0.25
Typha angustifolia
3.30(-10.36-16.96)
1.80(-5.28-8.88)
0.20
0.31
Iva frutescens
0.60(-0.64-1.84)
0.40(-0.01-0.81)
0.30
0.13
Hydrocotyle verticillata
0.70(-0.82-2.22)
4.50(-5.11-14.11)
0.20
0.34
Echinochloa walteri
0.20(n/a)
0.20(n/a)
0.10
0.05
Toxicodendron radicans
1.15(-0.51-2.81)
1.00(-0.37-2.37)
0.40
0.21
Pluchea odorata
0.60(-1.42-2.62)
0.40(-0.61-1.41)
0.20
0.10
Symphyotrichum subulatum
1.40(-1.11-3.91)
0.30(0.30-0.30)
0.30
0.16
Amanranthus cannabinus
0.20(0.20-0.20)
0.20(0.20-0.20)
0.20
0.07
Bolboschoenus robustus
0.95(-0.40-2.30)
1.00(-0.37-2.37)
0.40
0.20
Hydrolea quadrivalvis
0.05(n/a)
0.10(n/a)
0.10
0.03
Eupatorium capillifolium
0.15(-0.10-0.40)
0.20(0.20-0.20)
0.20
0.07
Mikania scandens
0.10(n/a)
0.10(n/a)
0.10
0.04
Samolus valerandi spp. parviflorus
0.30(n/a)
1.40(n/a)
0.10
0.12
Appendix G-24. Huddles Main Well HMW9 Shrubs 2017
Average percent cover Average number of stems Frequency of I Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence values
Iva frutescens 14.10(5.94-22.26) 2.600.54-3.661 0.80 1.05
Baccharis halimifolia
12.00(4.85-19.15)
1.40(0.89-1.91)
0.80
0.80
Morella cerifera
10.50(2.57-18.43)
0.90(0.22-1.58)
0.40
0.55
Toxicodendron radicans
2.60(-1.52-6.72)
0.80(0.41-1.19)
0.50
0.37
Persea borbonia
0.20(n/a)
0.10(n/a)
0.10
0.06
Quercus laurifolia
0.30(n/a)
0.10(n/a)
0.10
0.06
Ulmus americana
0.50(n/a)
0.10(n/a)
0.10
0.06
Rubus argutus
0.20(n/a)
0.10(n/a)
0.10
0.06
3endix G-25. Huddles Main Well HMW10 Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Polygonum punctatum
1.00(n/a)
2.00(n/a)
0.10
0.07
Echinochloa walteri
9.50(3.94-15.06)
2.00(0.99-3.01)
0.20
0.18
Symphyotrichum subulatum
15.50(8.10-22.90)
5.00(1.45-8.55)
0.40
0.34
Cyperus odoratus
23.25(4.31-42.19)
5.25(1.54-8.96)
0.40
0.39
Hydrocotyle verticillata
10.00(7.98-12.02)
97.00(49.45-144.55)
0.20
0.81
Samolus valerandi spp. Parviflorus
5.00(n/a)
9.00(n/a)
0.10
0.14
Hydrolea quadrivalvis
1.00(n/a)
1.00(n/a)
0.10
0.07
Toxicodendron radicans
4.00(0.96-7.04)
4.00(0.96-7.04)
0.20
0.16
Pluchea odorata
1.00(n/a)
1.00(n/a)
0.10
0.07
Typha angustifolia
95.00(n/a)
24.00(n/a)
0.10
0.79
aendix G-26. Huddles Main Well HMW10 Shrubs 2017
Average percent cover I Average number of stems Frequency of importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Rosa palustris
5.00(n/a)
1.00(n/a)
0.10
0.14
Toxicodendron radicans
3.67(1.20-6.13)
1.00(1.00-1.00)
0.60
0.31
Morella cerifera
16.80(9.60-24.00)
1.40(0.76-2.04)
0.50
0.45
Baccharis halimifolia
19.20(8.49-29.91)
2.40(1.20-3.60)
0.50
0.52
Smilax rotundifolia
1.33(0.92-1.75)
1.67(0.84-2.49)
0.30
0.19
Vaccinium corymbosum
10.00(n/a)
2.00(n/a)
0.10
0.24
Arundinaria gigantea
8.00(n/a)
12.00(n/a)
0.10
0.59
Persea borbonia
5.00(n/a)
1.00(n/a)
0.10
0.14
Ilex opaca
3.00(n/a)
1.00(n/a)
0.10
0.11
Quercus laurifolia
7.00(n/a)
1.00(n/a)
0.10
0.16
Smilax bona-nox
2.00(n/a)
2.00(n/a)
0.10
0.14
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-39

Appendix G-27. Huddles Main Well HMW12 Herbs 2017
G-30. Huddles West Well HWW2 Shrubs 2017
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
valuea
Typha latifolia 43.17(18.78-67.55) 9.67(4.49-14.84) 0.60 0.96
Cyperus odoratus 8.67(5.14-12.20) 3.00(1.11-4.89) 0.30 0.29
Toxicodendron radicans 9.00(n/a) 10.00(n/a) 0.10 0.33
Echinochloa walteri 1.50(0.99-2.01) 1.00(1.00-1.00) 0.20 0.12
Symphyotrichum subulatum 2.00(1.28-2.72) 1.67(0.84-2.49) 0.30 0.18
Baccharis halimifolia 1.00(n/a) 1.00(n/a) 0.10 0.07
Erechtites hieracifolia 3.00(n/a) 2.00(n/a) 0.10 0.11
Hydrocotyle verticillata 2.00(n/a) 16.00(n/a) 0.10 0.36
Erigeron annuus 4.00(n/a) 1.00(n/a) 0.10 0.11
Phragmites australis 2.00(n/a) 6.00(n/a) 0.10 0.17
Galium tinctorium 0.50(n/a) 1.00(n/a) 0.10 0.07
Eupatorium capillifolium 0.50(n/a) 1.00(n/a) 0.10 0.07
Morella cerifera 3.00(n/a) 1.00(n/a) 0.10 0.10
Eclipta prostrata 1.00(n/a) 1.00(n/a) 0.10 0.07
Appendix G-28. Huddles Main Well HMW12 Shrubs 2017
0.75
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
valuea
Parthensocissus quinquefolia 3.00(0.98-5.02) 1.00(1.00-1.00) 0.20 0.21
Ulmus americana 23.50(6.81-40.19) 2.00(0.99-3.01) 0.20 0.47
Morella cerifera 23.75(13.07-34.43) 1.75(1.07-2.43) 0.40 0.55
Baccharis halimifolia 13.00(7.14-18.86) 1.00(1.00-1.00) 0.30 0.35
Smilax rotundifolia 1.67(1.25-2.08) 2.67(0.60-4.73) 0.30 0.37
Toxicodendron radicans 1.33(0.92-1.75) 1.00(1.00-1.00) 0.30 0.24
Sabal minor 15.00(n/a) 2.00(n/a) 0.10 0.34
Quercus laurifolia 30.00(n/a) 2.00(n/a) 0.10 0.47
Appendix G-29. Huddles West Well HWW2 Herbs 2017
1.25(0.84-1.66)
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
valuea
Phragmites australis 75.00(75.00-75.00) 24.00(21.85-26.15) 0.75 2.40
Toxicodendron radicans 0.75(0.24-1.26) 2.00(-1.04-5.04) 0.50 0.42
Smilax rotundifolia 0.06(n/a) 0.25(n/a) 0.25 0.18
G-30. Huddles West Well HWW2 Shrubs 2017
Appendix G-31. Huddles West Well HWW4 Herbs 2017
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval) I
occurrence
valuea
Baccharis halimifolia
20.50(14.47-26.53)
2.75(1.68-3.82)
1.00
0.62
Berchemia scandens
9.50(-1.26-20.26)
1.75(1.34-2.16)
0.75
0.36
Toxicodendron radicans
3.25(2.42-4.08)
1.25(0.84-1.66)
0.75
0.24
Smilax bona-nox
1.75(0.10-3.40)
2.50(1.41-3.59)
0.75
0.30
Cornus amomum
18.75(5.85-31.65)
1.25(0.84-1.66)
0.75
0.46
Bignonia capreolata
0.75(n/a)
0.25(n/a)
0.25
0.07
Morella cerifera
14.25(11.67-16.83)
1.25(0.84-1.66)
0.75
0.40
Parthenocissus quinquefolia
0.75(0.24-1.26)
0.50(0.50-0.50)
0.50
0.12
Arundinaria gigantea
1.50(1.50-1.50)
3.75(3.24-4.26)
0.50
0.34
Vitis rotundifolia
0.75(0.24-1.26)
0.50(0.50-0.50)
0.25
0.08
Appendix G-31. Huddles West Well HWW4 Herbs 2017
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-40
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
valuea
Liquidambar styraciflua
0.50(n/a)
1.00(n/a)
0.10
0.07
Polygonum punctatum
1.67(0.84-2.49)
2.00(2.00-2.00)
0.30
0.20
Cyperus odoratus
5.00(1.88-8.12)
5.00(3.57-6.43)
0.30
0.33
Eupatorium capillifolium
10.00(n/a)
2.00(n/a)
0.10
0.29
Baccharis halimifolia
3.00(n/a)
6.00(n/a)
0.10
0.22
Morella cerifera
8.75(-1.32-18.82)
1.33(0.92-1.75)
0.30
0.33
Smilax rotundifolia
5.00(n/a)
2.00(n/a)
0.10
0.18
Symphyotrichum subulatum
4.67(3.84-5.49)
8.33(6.84-9.82)
0.30
0.39
Toxicodendron radicans
2.67(1.18-4.16)
3.33(2.24-4.43)
0.30
0.25
Rosa palustris
6.00(n/a)
4.00(n/a)
0.10
0.24
Echinochloa walteri
0.50(n/a)
1.00(n/a)
0.10
0.07
Hydrocotyle verticillata
1.00(n/a)
15.00(n/a)
0.10
0.35
Pinus seedlino
0.25(n/a)
1.00(n/a)
0.10
0.07
a Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-40

aendix G-32. Huddles West Well HWW4 Shrubs 2017
Appendix G-33. Huddles West Well HWW7 Herbs 2017
2.60(-1.18-6.38)
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
0.70(0.31-1.09)
(95% confidence interval)
(95% confidence interval) I
occurrence
values
Baccharis halimifolia
13.29(8.46-18.11)
1.71(1.37-2.06)
0.70
0.62
Smilax rotundifolia
1.00(1.00-1.00)
1.50(0.99-2.01)
0.20
0.21
Toxicodendron radicans
5.75(-0.31-11.81)
1.38(1.00-1.75)
0.80
0.50
Rosa palustris
5.00(5.00-5.00)
2.67(2.25-3.08)
0.30
0.41
Ulmus americana
12.50(9.97-15.03)
1.00(1.00-1.00)
0.20
0.37
Morella cerifera
17.50(8.50-26.50)
1.75(0.68-2.82)
0.40
0.59
Berchemia scandens
0.50(n/a)
1.00(n/a)
0.10
0.13
Quercus phellos
3.00(n/a)
1.00(n/a)
0.10
0.17
Appendix G-33. Huddles West Well HWW7 Herbs 2017
Appendix G-34. Huddles West Well HWW7 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Toxicodendron radicans
2.60(-1.18-6.38)
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
0.70(0.31-1.09)
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Typha angustifolia
26.40(10.54-42.26)
9.10(3.89-14.31)
0.70
1.36
Cyperusodoratus
1.40(-3.66-6.46)
0.40(-0.61-1.41)
0.20
0.13
Hydrocotyle verticillata
1.10(0.01-2.19)
9.20(-3.52-21.92)
0.30
0.49
Symphyotrichum subulatum
3.60(-2.12-9.32)
3.10(1.03-5.17)
0.30
0.33
Hydrolea quadrivalvis
0.10(n/a)
0.20(n/a)
0.10
0.05
Chasmanthium laxum
0.30(n/a)
0.40(n/a)
0.10
0.06
Baccharis halimifolia
0.05(n/a)
0.20(n/a)
0.10
0.05
Morella cerifera
0.05(n/a)
0.10(n/a)
0.10
0.04
Pluchea odorata
0.10(n/a)
0.10(n/a)
0.10
0.04
Echinochloa walteri
0.05(n/a)
0.20(n/a)
0.10
0.05
Toxicodendron radicans
1.10(-0.42-2.62)
1.40(n/a)
0.20
0.16
Galium tinctorium
0.03(n/a)
0.10(n/a)
0.10
0.04
Phrawites australis
1.00(-0.80-2.80)
1.60(n/a)
0.30
0.20
Appendix G-34. Huddles West Well HWW7 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Toxicodendron radicans
2.60(-1.18-6.38)
0.70(0.41-0.99)
0.60
0.84
Baccharis halimifolia
7.50(0.83-14.17)
0.70(0.31-1.09)
0.50
1.07
Persea palustris
1.20(n/a)
0.10(n/a)
0.10
0.18
Rosa palustris
0.30(n/a)
0.40(n/a)
0.10
0.25
Smilax rotundifolia
0.30(n/a)
0.10(n/a)
0.10
0.12
Appendix G-35. Huddles West Well HWW8 Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value'
Appendix G-36. Huddles West Well HWW8 Shrubs 2017
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-41
Average percent cover
Average number of stems
I
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
values
Ulmus americana 3.00(n/a)
0.20(n/a)
0.10
1.05
Baccharis halimifolia 3.40(-5.25-12.05)
0.40(-0.01-0.81)
0.30
1.95
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-41

G-37. Jacks Creek Well 2 Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value
Acerrubrum
0.40(0.17-0.63)
1.20(0.38-2.02)
0.50
0.15
Arundinaria gigantea
16.10(6.66-25.54)
14.60(3.40-25.80)
0.50
0.81
Hydrocotyle verticillata
2.23(0.47-3.98)
34.30(0.82-67.78)
0.80
0.79
Sauruus cernus
0.75(-0.89-2.39)
1.10(-0.55-2.75)
0.30
0.11
Polygonum punctatum
5.00(-3.77-13.77)
2.40(-1.85-6.65)
0.40
0.28
Echinochloa walteri
2.70(-3.88-9.28)
1.50(-3.05-6.05)
0.20
0.15
Eclipta prostrata
0.10(n/a)
0.10(n/a)
0.10
0.03
Mikania scandens
0.30(-0.21-0.81)
0.20(0.20-0.20)
0.20
0.06
Galium tinctorium
0.03(n/a)
0.10(n/a)
0.10
0.03
Leersia virginica
6.40(-17.57-30.37)
7.30(-11.91-26.51)
0.30
0.37
Toxicodendron radicans
0.25(-0.51-1.01)
0.70(-1.83-3.23)
0.20
0.07
Quercus laurifolia
0.03(n/a)
0.10(n/a)
0.10
0.03
Decumaria barbara
0.05(n/a)
0.10(n/a)
0.10
0.03
Bignonia capreolata
0.10(n/a)
0.10(n/a)
0.10
0.03
Campsis radicans
0.20(n/a)
0.10(n/a)
0.10
0.03
Cyperus odorata
0.20(n/a)
0.10(n/a)
0.10
0.03
Appendix G-38. Jacks Creek Well 2 Shrubs 2017
Average percent cover Average number of stems Frequency of I Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence values
Fraxinus pennsylvanica 6.13(-4.61-16.86) 3.10(0.49-6.12) 0.70 0.47
Sabal minor (clumps)
10.93(-2.55-24.40)
2.00(-0.04-4.36)
0.70
0.58
Arundinaria gigantea
17.73(2.55-32.90)
40.50(11.10-74.55)
0.80
1.62
Campsis radicans
0.03(n/a)
0.10(n/a)
0.10
0.04
Toxicodendron radicans
0.03(n/a)
0.10(n/a)
0.10
0.04
Smilax bona-nox
0.03(n/a)
0.20(0.20-0.20)
0.20
0.07
Smilax rotunifolia
0.08(0.08-0.08)
1.10(-0.12-2.52)
0.40
0.15
Ulmus americana
0.10(n/a)
0.10(n/a)
0.10
0.04
3endix G-39. Jacks Creek Well 3 Herbs 2017
Polygonum punctatum
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
I occurrence
value'
Phragmites australis
83.00(61.99-104.01)
33.20(26.00-40.40)
1.00
2.28
Microstegium vimineum
0.70(0.02-1.38)
1.70(-0.87-4.27)
0.40
0.22
Hydrocotyle verticillata
0.45(0.00-0.90)
1.40(0.03-2.77)
0.40
0.21
Polygonum punctatum
0.10(n/a)
0.10(n/a)
0.10
0.05
Quercus laurifolia
0.08(n/a)
0.10(n/a)
0.10
0.05
Toxicodendron radicans
0.30(-0.21-0.81)
0.70(-0.82-2.22)
0.20
0.11
Juncus coriaceus
0.10(n/a)
0.10(n/a)
0.10
0.05
Smilax rotundifolia
0.05(n/a)
0.10(n/a)
0.10
0.04
aendix G-40. Jacks Creek Well 3 Shrubs 2016
Average percent cover I Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Baccharis halimifolia
11.10(6.65-15.55)
1.30(0.77-1.83)
0.80
0.54
Fraxinus pennsylvanica
7.50(1.39-13.61)
1.10(0.42-1.78)
0.40
0.35
Sabal minor (clumps)
12.60(2.54-22.66)
2.10(0.89-3.31)
0.80
0.65
Morella cerifera
14.50(-4.15-33.15)
1.20(0.38-2.02)
0.50
0.52
Campsis radicans
0.30(n/a)
0.10(n/a)
0.10
0.04
Toxicodendron radicans
4.85(-0.16-9.86)
1.00(0.44-1.56)
0.70
0.36
Ilex opaca
1.30(-2.24-4.84)
0.20(0.20-0.20)
0.20
0.09
Smilax bona-nox
0.60(-1.42-2.62)
0.60(-1.42-2.62)
0.20
0.12
Smilax rotundifolia
0.65(-1.11-2.41)
1.00(-0.09-2.09)
0.30
0.19
Bignonia capreolata
0.05(n/a)
0.10(n/a)
0.10
0.04
Quercus laurifolia
1.00(1.00-1.00)
0.20(0.20-0.20)
0.20
0.09
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-42

G-41. Jacks Creek Well 5 Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Sabal minor 2.50(n/a) 1.00(n/a) 0.10 0.15
Appendix G-42. Jacks Creek Well 5 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Sabal minor (clumps) 20.50(11.52-29.48) 1.50(1.09-1.91) 0.40 0.89
Baccharis halimifolia 16.67(7.67-25.67) 1.00(1.00-1.00) 0.30 0.66
Iva frutescens 35.00(19.82-50.18) 2.50(1.99-3.01) 0.20 1.06
Morella cerifera 3.00(0.98-5.02) 1.00(1.00-1.00) 0.20 0.39
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-43. Jacks Creek Well 7 Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Microstegium vimineum
37.86(10.86-64.85)
38.29(11.59-64.98)
0.70
0.57
Toxicodendron radicans
4.25(2.20-6.30)
5.50(4.26-6.74)
0.40
0.13
Eupatorium capillifolium
0.75(0.50-1.00)
2.00(0.99-3.01)
0.20
0.05
Campsis radicans
3.00(n/a)
1.00(n/a)
0.10
0.04
Rubus trivialis
5.00(1.88-8.12)
2.33(0.68-3.99)
0.30
0.10
Symphyotrichum subulatum
3.50(n/a)
3.00(n/a)
0.10
0.06
Samolus valerandi spp. parviflorus
6.67(3.14-10.20)
19.33(7.48-31.18)
0.30
0.22
Pinus seedling
0.50(n/a)
2.00(n/a)
0.10
0.03
Juncus coriaceus
40.00(4.59-75.41)
3.00(1.99-4.01)
0.20
0.25
Galium tinctorium
2.00(0.99-3.01)
3.50(0.97-6.03)
0.20
0.07
Smilax bona-nox
3.50(2.99-4.01)
1.50(0.99-2.01)
0.20
0.06
Arundinaria gigantea
7.50(3.78-11.22)
3.25(2.03-4.47)
0.40
0.13
Erechtites hieracifolia
15.00(n/a)
2.00(n/a)
0.10
0.11
Carex intumescens
30.00(n/a)
2.00(n/a)
0.10
0.18
Cyperus odorata
4.00(n/a)
1.00(n/a)
0.10
0.05
Saurruus cernus
1.00(n/a)
1.00(n/a)
0.10
0.03
Acer rubrum
1.00(n/a)
1.00(n/a)
0.10
0.03
Mikania scandens
10.00(n/a)
2.00(n/a)
0.20
0.10
Liquidambar styraciflua
1.00(n/a)
2.00(n/a)
0.10
0.04
Viola sororia
1.00(1.00-1.00)
1.00(1.00-1.00)
0.20
0.05
Hydrocotyle verticillata
5.33(2.11-8.56)
40.67(19.13-62.20)
0.30
0.35
Polygonum punctatum
2.00(2.00-2.00)
1.50(0.99-2.01)
0.20
0.06
Pluchea odorata
6.00(n/a)
1.00(n/a)
0.10
0.05
Echinochloa walteri
12.00(3.91-20.09)
5.50(0.95-10.05)
0.20
0.13
Appendix G-44. Jacks Creek Well 7 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Baccharis halimifolia 17.00(5.48-28.52) 2.00(0.99-3.01) 0.40 0.26
Toxicodendron radicans
5.75(3.61-7.89)
1.75(1.39-2.11)
0.40
0.17
Liquidambar styraciflua
11.00(1.89-20.11)
3.00(0.98-5.02)
0.20
0.19
Arundinaria gigantea
17.00(10.03-23.97)
16.00(11.34-20.66)
0.50
0.60
Fraxinuspennsylvanica
19.29(6.16-32.42)
2.71(1.24-4.19)
0.70
0.36
Carpinus caroliniana
8.33(1.10-15.57)
1.33(0.92-1.75)
0.30
0.16
Diospyros virginiana
3.00(n/a)
1.00(n/a)
0.10
0.07
Persea palustris
6.67(4.60-8.73)
1.00(1.00-1.00)
0.30
0.14
Parthenocissus quinquefolia
1.00(n/a)
1.00(n/a)
0.10
0.05
Sabal minor (clumps)
25.00(17.00-33.00)
2.14(1.65-2.64)
0.70
0.39
Quercus laurifolia
4.67(1.36-7.97)
1.00(1.00-1.00)
0.30
0.12
Decumaria barbara
1.00(n/a)
1.00(n/a)
0.10
0.05
Smilax bona-nox
3.25(2.35-4.15)
1.75(1.39-2.11)
0.40
0.15
Smilax rotundifolia
5.00(5.00-5.00)
7.50(4.97-10.03)
0.20
0.25
Bianonia caoreolata
2.00(n/a)
1.00(n/a)
0.10
0.06
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-43

G-45. Jacks Creek Well 9 Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Typha angustifolia
19.80(2.69-36.91)
6.80(4.19-9.41)
0.90
1.28
Sagittaria latifolia
2.70(-3.88-9.28)
2.10(-5.49-9.69)
0.20
0.27
Pluchea odorata
4.60(1.62-7.58)
3.00(0.75-5.25)
0.80
0.56
Polygonum punctatum
1.90(-1.08-4.88)
1.50(0.07-2.93)
0.30
0.24
Symphyotrichum subulatum
2.00(1.17-2.83)
0.80(-0.21-1.81)
0.40
0.23
Amaranthus cannabinus
0.70(0.29-1.11)
0.70(-0.95-2.35)
0.30
0.15
Iva frutescens
0.10(n/a)
0.10(n/a)
0.10
0.04
Bolboshoenus robustus
0.10(n/a)
0.10(n/a)
0.10
0.04
Appendix G-46. Jacks Creek Well 9 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Toxicodendron radicans 0.60(-1.42-2.62) 0.30(-0.21-0.81) 0.20 0.14
Sabal minor (clumps)
10.00(-7.03-27.03)
1.30(0.23-2.37)
0.40
0.64
Baccharis halimifolia
5.50(0.13-10.87)
1.10(0.20-2.00)
0.40
0.48
Morella cerifera
13.50(3.97-23.03)
1.10(0.40-1.80)
0.60
0.78
Smilax bona-nox
0.50(-0.01-1.01)
0.20(0.20-0.20)
0.20
0.12
Iva frutescens
5.00(2.08-7.92)
1.60(0.62-2.58)
0.60
0.63
Juniperus virginiana
0.50(n/a)
0.10(n/a)
0.10
0.07
Ulmus americana
1.00(1.00-1.00)
0.20(0.20-0.20)
0.20
0.14
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-44

Appendix G-47. Jacobs Creek Herbs 2017
Appendix G-48. Jacobs Creek Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Arundinaria gigantea 30.55(0.63-60.47) 102.10(-30.86-256.11) 0.70 2.19
Smilax rotundifolia
0.30(0.09-0.51)
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
0.30(-0.21-0.89)
(95% confidence interval)
(95% confidence interval)
occurrence
value
Saururus cernuus
4.00(n/a)
1.80(n/a)
0.10
0.19
Smilax rotundifolia
0.80(n/a)
0.50(n/a)
0.10
0.07
Smilax bona-nox
0.48(-0.42-1.37)
0.70(-0.37-1.77)
0.40
0.17
Microstegium vimineum
19.80(-4.68-44.28)
19.80(-4.68-44.28)
0.40
1.27
Toxicodendron radicans
0.40(-0.34-1.14)
1.00(-1.30-3.30)
0.30
0.14
G/echoma hederacea
2.30(0.00-4.60)
1.70(-2.37-5.77)
0.30
0.21
Carex intumescens
9.00(-4.99-22.99)
2.50(0.29-4.71)
0.40
0.44
Fraxinus pennsylvanica
0.23(-0.15-0.60)
0.50(-1.02-2.02)
0.20
0.09
Polygonum punctatum
0.10(n/a)
0.20(n/a)
0.10
0.04
Boehmeria cylindrica
0.60(n/a)
0.30(n/a)
0.10
0.06
Campsis radicans
0.10(n/a)
0.10(n/a)
0.10
0.04
Arundinariagigantea
2.00(-0.51-4.51)
1.20(-0.69-3.09)
0.30
0.19
Berchemia scandens
0.10(n/a)
0.40(n/a)
0.10
0.05
Acerrubrum
0.03(n/a)
0.10(n/a)
0.10
0.04
Appendix G-48. Jacobs Creek Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Arundinaria gigantea 30.55(0.63-60.47) 102.10(-30.86-256.11) 0.70 2.19
Smilax rotundifolia
0.30(0.09-0.51)
0.80(0.22-1.48)
0.40
0.20
Carpinus caroliniana
1.70(-1.84-5.24)
0.30(-0.21-0.89)
0.20
0.14
Berchemia scandens
0.63(-1.20-2.45)
0.40(-0.01-0.88)
0.30
0.16
Vitis rotundifolia
0.50(n/a)
0.10(n/a)
0.10
0.06
Callicarpa americana
0.20(n/a)
0.10(n/a)
0.10
0.05
Vitis aestivalis
0.10(n/a)
0.10(n/a)
0.10
0.05
Smilax bona-nox
0.30(-0.21-0.81)
0.20(0.20-0.20)
0.20
0.10
Parthenocissus auinauefolia
0.05(n/a)
0.10(n/a)
0.10
0.05
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-45

G-49. Lona Creek Well 2B Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Microstegium vimenium
0.08(-0.05-0.20)
0.60(-0.41-1.61)
0.20
0.06
Pluchea odorata
1.00(-0.80-2.80)
0.70(-0.39-1.79)
0.30
0.12
Acer rubrum
0.95(-2.05-3.95)
2.00(-1.38-5.38)
0.30
0.14
Smilax bona-nox
0.03(n/a)
0.10(n/a)
0.10
0.03
Arundinaria gigantea
3.50(0.97-6.03)
3.20(2.19-4.21)
0.20
0.24
Glyceria striata
1.20(n/a)
0.10(n/a)
0.10
0.07
Woodwardia aerolata
0.10(n/a)
0.10(n/a)
0.10
0.03
Carex debilis
2.30(-1.24-5.84)
0.60(-1.42-2.62)
0.20
0.15
Dichanthelium sp.
1.40(-0.62-3.42)
3.60(-8.54-15.74)
0.20
0.16
Morella cerifera
1.60(n/a)
0.10(n/a)
0.10
0.09
Gelsemium sempervirens
0.10(n/a)
0.20(n/a)
0.10
0.03
Eupatoriumcapillifolium
0.15(-0.10-0.40)
0.30(-0.21-0.81)
0.20
0.06
Baccharis halimifolia
0.08(-0.05-0.20)
0.30(-0.21-0.81)
0.20
0.06
Dioscorea villosa
0.03(n/a)
0.10(n/a)
0.10
0.03
Hydrocotyle verticillata
5.90(-4.76-16.56)
38.70(-27.44-104.84)
0.60
0.99
Samolus valerandi spp. Parviflorus
0.45(-0.17-1.07)
1.30(-0.89-3.49)
0.30
0.11
Cyperus odoratus
0.10(n/a)
0.10(n/a)
0.10
0.03
Polygonum punctatum
0.30(n/a)
0.20(n/a)
0.10
0.04
Triglochin striata
3.00(n/a)
9.00(n/a)
0.10
0.29
Centella erecta
0.35(-0.91-1.61)
1.90(-4.68-8.48)
0.20
0.09
Rubus argutus
0.10(n/a)
0.10(n/a)
0.10
0.03
Toxicodendron radicans
0.30(n/a)
0.40(n/a)
0.10
0.04
Asplenium sp.
0.20(n/a)
0.40(n/a)
0.10
0.03
G-50. Lona Creek Well 2B Shrubs 2017
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-46
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
I value'
Morella cerifera
27.4(9.30-45.50)
3.60(-14.50-21.70)
0.80
1.13
Smilax rotundifolia
0.60(-0.12-1.32)
0.80(0.08-1.52)
0.30
0.16
Arundinaria gigantea
6.2(-3.50-15.90)
6.60(-3.10-16.30)
0.50
0.78
Liquidambarstyraciflua
3.50(1.43-5.57)
0.40(-1.67-2.47)
0.30
0.20
Smilax bona-nox
0.30(n/a)
0.40(n/a)
0.10
0.07
Vitis rotundifolia
0.60(-0.12-1.32)
0.30(-0.42-1.02)
0.30
0.13
Vaccinium corymbosum
1.50(0.43-2.57)
0.40(-0.67-1.47)
0.40
0.18
Baccharis halimifolia
2.50(-5.09-10.09)
0.50(-7.09-8.09)
0.20
0.15
Ilex glabra
0.50(-1.02-2.02)
0.20(-1.32-1.72)
0.20
0.09
Persea palustris
1.00(n/a)
0.30(n/a)
0.10
0.08
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.10
0.04
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-46

Appendix G-51. Tooley Creek Well TW1 Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value
Smilax bona-nox
0.10(n/a)
0.30(n/a)
0.10
0.04
Smilax rotundifolia
0.50(-1.02-2.02)
0.40(-0.61-1.41)
0.20
0.08
Toxicodendron radicans
0.40(-0.61-1.41)
0.50(-0.01-1.01)
0.20
0.08
Juncus roemarianus
0.80(n/a)
0.10(n/a)
0.10
0.05
Mikania scandens
6.20(-5.80-18.20)
2.20(-1.03-5.43)
0.30
0.26
Tripsacum dactyloides
1.00(n/a)
0.20(n/a)
0.10
0.06
Saururuscernuus
0.30(-0.21-0.81)
0.40(-0.61-1.41)
0.20
0.07
Microstegium vimineum
1.30(-2.24-4.84)
2.60(-1.45-6.65)
0.20
0.14
Samolus valerandi spp. Parviflorus
4.50(-3.09-12.09)
6.30(-22.53-35.13)
0.20
0.28
Polygonum punctatum
0.55(-1.73-2.83)
0.60(-1.42-2.62)
0.20
0.08
Pluchea odorata
14.20(-6.75-35.15)
26.80(-42.03-95.63)
0.50
0.99
Eupatoriumcapilifolium
0.45(-0.31-1.21)
0.50(-0.01-1.01)
0.20
0.08
Sabal minor
1.80(n/a)
0.10(n/a)
0.10
0.07
Echincloa walterii
6.50(n/a)
1.80(n/a)
0.10
0.20
Baccharis halimifolia
0.05(n/a)
0.10(n/a)
0.10
0.03
Erechtites hierachifolia
1.00(n/a)
0.10(n/a)
0.10
0.05
Appendix G-52. Tooley Creek Well TW1 Shrubs 2016
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence values
Arundinaria gigantea 23.50(2.47-44.53) 32.80(-2.89-74.14) 0.60 1.71
Persea palustris
1.00(n/a)
0.20(n/a)
0.10
0.07
Smilax rotundifolia
0.40(0.40-0.40)
1.30(-2.24-5.40)
0.20
0.12
Quercus nigra
1.30(-0.22-2.82)
0.20(0.20-0.20)
0.20
0.11
Vitis rotundifolia
2.90(0.36-5.44)
0.70(0.41-1.04)
0.60
0.31
Smilax bona nox
1.00(-0.09-2.09)
0.60(-0.64-2.04)
0.30
0.15
Quercus laurifolia
3.70(-2.95-10.35)
0.40(-0.01-0.88)
0.30
0.22
Baccharis halimifolia
5.00(5.00-5.00)
0.50(-1.02-.26)
0.20
0.21
Toxicodendron radicans
0.70(-0.82-2.22)
0.20(0.20-0.20)
0.20
0.10
G-53. Toolev Creek Well TW3 Herbs 2017
G-54. Toolev Creek Well TW3 Shrubs 2017
Average percent cover I Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Vitis rotundifolia
Average percent cover
Average number of stems
Frequency of
Importance
Scientific name
(95% confidence interval)
(95% confidence interval) I
occurrence
value'
Polygonum punctatum
12.40(-11.53-36.38)
3.90(-1.71-9.51)
0.40
0.69
Typha latifolia
0.40(n/a)
0.10(n/a)
0.10
0.05
Phragmites australis
15.10(-4.30-34.50)
6.60(-1.64-23.34)
0.50
0.95
Pluchea odorata
3.80(-0.22-7.82)
2.70(-0.86-7.36)
0.70
0.51
Bolboschoenus robustus
2.95(-2.42-8.32)
2.80(0.34-5.41)
0.60
0.45
Samolus valerandi spp. Parviflorus
0.33(-0.30-0.95)
0.80(-0.69-1.81)
0.30
0.16
Toxicodendron radicans
0.05(n/a)
0.10(n/a)
0.10
0.04
Sabal minor
4.00(n/a)
0.10(n/a)
0.10
0.14
G-54. Toolev Creek Well TW3 Shrubs 2017
Average percent cover I Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I values
Vitis rotundifolia
8.20(-1.33-17.73)
0.50(0.50-0.50)
0.50
0.83
Arundinaria gigantea
2.00(n/a)
2.00(n/a)
0.10
0.62
Smilax rotundifolia
1.00(n/a)
0.60(n/a)
0.10
0.26
Baccharis halimifolia
2.50(n/a)
0.10(n/a)
0.10
0.20
Sabal minor
13.00(-9.72-35.72)
1.00(-0.09-2.27)
0.30
0.95
Morella cerifera
1.00(n/a)
0.10(n/a)
0.10
0.14
Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-47

G-55. Toolev Creek Well TW4 Herbs 2017
Average percent cover Average number of stems Frequency of importance
Scientific name (95% confidence interval) (95% confidence interval) I occurrence I value'
Echincloa walterii
9.10(-0.72-18.92)
2.30(-2.16-6.76)
0.40
0.58
Hydrocotyle verticillata
2.23(-4.67-9.12)
11.70(-22.15-45.55)
0.40
0.71
Polygonum punctatum
6.00(0.94-11.06)
3.70(2.18-5.22)
0.20
0.45
Cyperus odoratus
0.70(n/a)
0.30(n/a)
0.10
0.07
Quercus laurifolia
0.55(-1.73-2.83)
0.20(0.20-0.20)
0.20
0.10
Rubus flagellaris
0.20(n/a)
0.20(n/a)
0.10
0.05
Smilax rotundifolia
0.98(-0.76-2.71)
1.20(-0.45-2.85)
0.40
0.22
Erechtites hierachifolia
0.60(0.60-0.60)
0.40(0.40-0.40)
0.20
0.11
Morella cerifera
0.10(n/a)
0.20(n/a)
0.10
0.05
Arundinaria gigantea
1.30(-2.24-4.84)
1.20(-2.85-5.25)
0.20
0.17
Toxicodendron radicans
0.10(n/a)
0.10(n/a)
0.10
0.04
Acer rubrum
0.10(n/a)
0.10(n/a)
0.10
0.04
Microstegium vimineum
1.00(n/a)
1.00(n/a)
0.10
0.11
G-56. Toolev Creek Well TW4 Shrubs 2017
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-48
Average percent cover
Average number of stems
Frequency of
importance
Scientific name
(95% confidence interval)
(95% confidence interval)
occurrence
value'
Baccharis halimifolia
5.60(-3.08-14.28)
0.40(0.40-0.40)
0.40
0.23
Morella cerifera
16.50(-1.31-34.31)
1.80(-1.62-5.76)
0.50
0.51
Arundinaria gigantea
19.00(4.93-33.07)
22.50(10.51-36.39)
0.60
1.29
Smilax rotundifolia
2.30(0.83-3.77)
2.70(0.88-4.81)
0.70
0.34
Otis rotundifolia
0.65(-1.11-2.41)
0.30(0.30-0.30)
0.30
0.11
Quercus phellos
1.70(0.18-3.22)
0.20(0.20-0.20)
0.20
0.10
Quercus nigra
5.50(-7.15-18.15)
0.50(-1.02-2.26)
0.20
0.18
Liquidambarstyraciflua
2.70(-3.88-9.28)
0.30(-0.21-0.89)
0.20
0.12
Fraxinus pennsylvanica
0.50(n/a)
0.10(n/a)
0.10
0.04
Quercus laurifolia
0.70(n/a)
0.10(n/a)
0.10
0.05
Biononia caoreolata
0.10(n/a)
0.20(n/a)
0.10
0.04
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-48

Appendix G-57. Tooley Creek Well TW6 Herbs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) 1 (95% confidence interval) I occurrence I value'
Toxicodendron radicans 0.80(0.26-1.34) 2.90(0.53-5.27) 0.60 0.23
Vitis rotundifolia
0.15(n/a)
0.10(n/a)
0.10
0.03
Smilax bona-nox
0.10(n/a)
0.10(n/a)
0.10
0.03
Microstegium vimenium
29.30(3.79-54.81)
30.00(5.23-54.77)
0.70
1.51
Berchmia scandens
0.23(-0.08-0.53)
0.70(-0.13-1.53)
0.30
0.10
Liquidambar styraciflua
0.03(n/a)
0.10(n/a)
0.10
0.03
Acer rubrum
0.08(0.08-0.08)
0.40(-0.01-0.81)
0.30
0.09
Baccharis halimifolia
0.33(-0.30-0.95)
0.70(-0.95-2.35)
0.30
0.10
Viola sororia
0.15(n/a)
0.50(n/a)
0.10
0.04
Leersia virginica
8.50(n/a)
8.50(n/a)
0.10
0.41
Erechtites hierachifolia
0.80(-0.21-1.81)
0.40(0.40-0.40)
0.20
0.08
Quercus laurifolia
0.10(n/a)
0.10(n/a)
0.10
0.03
Eupatorium capillifolium
0.05(n/a)
0.10(n/a)
0.10
0.03
Parthenocissus quinquefolia
0.10(0.10-0.10)
0.20(0.20-0.20)
0.20
0.06
Dichanthelium laxiflorum
0.30(n/a)
0.30(n/a)
0.10
0.04
Arundinaria gigantea
0.40(n/a)
0.50(n/a)
0.10
0.05
Rubus flagellaris
0.70(-0.82-2.22)
0.60(-1.42-2.62)
0.20
0.08
Sauruus cernus
0.10(n/a)
0.10(n/a)
0.10
0.03
Decumaria barbara
0.05(n/a)
0.10(n/a)
0.10
0.03
Appendix G-58. Tooley Creek Well TW6 Shrubs 2017
Average percent cover Average number of stems Frequency of Importance
Scientific name (95% confidence interval) (95% confidence interval) occurrence value'
Arundinaria aiaantea 23.50(15.95-31.05) 27.50(19.50-36.76) 1.00 1.54
Smilax rotundifolia
3.05(-3.04-9.14)
2.10(-0.54-5.15)
0.40
0.23
Baccharis halimifolia
6.00(-3.46-15.46)
0.60(-0.12-1.43)
0.30
0.21
Quercus phellos
2.50(-0.03-5.03)
0.20(0.20-0.20)
0.20
0.11
Callicarpa americana
3.00(-7.12-13.12)
0.30(-0.21-0.89)
0.20
0.12
Otis rotundifolia
2.00(0.87-3.13)
1.00(0.62-1.44)
0.70
0.26
Berchemia scandens
6.30(-5.52-18.12)
0.70(-0.39-1.97)
0.30
0.22
Toxicodendron radicans
1.10(-3.45-5.65)
0.20(0.20-0.20)
0.20
0.08
Vaccinum corymbosum
1.50(n/a)
0.30(n/a)
0.10
0.06
Quercus nigra
2.50(-0.03-5.03)
0.20(0.20-0.20)
0.20
0.11
Quercus laurifolia
2.00(n/a)
0.10(n/a)
0.10
0.07
' Importance value is the sum of relative percent cover, relative density (stems per quadrat), and relative frequency of occurrence.
The relative values of these three factors are not shown on this table for brevity. The importance value can theoretically can range
from 0.00 to 3.00
G-49