20080868 Ver 2_2014 Vegetation Data_20150717

Appendix G -1. Jacks Creek Well 2 Herbs 2014.
Scientific name
Polygonum punctatum
Fraxinus pennsylvanica
Arundinaria gigantea
Mikania scandens
Echinochloa walteri
Eclipta prostrata
Sabal minor (clumps)
Nyssa Mora
Hydrocotyle verticillata
Baccharis halimifolia
Sauruus cernus
Bignonia capreolata
Berchemia scandens
Toxicodendron radicans
Acer rubrum
Lonicera japonica
Carex sp.
Microstegium vimineum
Average percent cover
(95% confidence interval)
29.50(1.96- 57.04)
4.00(- 6.33- 14.33)
10.60(2.15- 19.05)
6.20( -0.92- 13.32)
7.50(n /a)
0.30( -0.21 -0.81)
1.50(n /a)
0.02(n /a)
5.0( -0.06- 10.06)
1.40( -0.62 -3.42)
0.20(n /a)
0.50(n /a)
0.40(n /a)
0.80( -0.21 -1.81)
0.30(n /a)
0.25( -0.51 -1.01)
0.80(n /a)
13(- 22.41- 48.41)
Appendix G -2. Jacks Creek Well 2 Shrubs 2014.
Scientific name
Fraxinus pennsylvanica
Sabal minor (clumps)
Arundinaria gigantea
Campsis radicans
Ulmus americans
Baccharis halimifolia
Berchemia scandens
Average percent cover
(95% confidence interval)
4.50(- 4.96- 13.96)
6.80(5.00 -8.60)
2.80(- 1.29 -6.89)
0.30(0.30 -0.30)
0.10(n /a)
0.40(n /a)
1.50(n /a)
Average number of
stems (95%
confidence interval)
4.7(0.50 -8.91)
0.5( -0.33 -1.33)
3.4( -0.83 -7.63)
2.20(0.87 -3.53)
1.90(n /a)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
19.10(- 46.15- 84.35)
0.30( -0.21 -0.81)
0.10(n /a)
0.20(n /a)
0.30(n /a)
1.40(- 1.64 -4.44)
0.10(n /a)
0.40( - 0.61 -1.41)
0.20(n /a)
12.50(- 20.38- 45.38)
Average number of
stems (95%
confidence interval)
3.50( -0.73 -8.40)
0.90( -0.17 -2.14)
5.20(0.66- 10.46)
0.30(0.30 -0.30)
0.10(n /a)
0.60(n /a)
0.10(n /a)
Frequency of
Average number of
occurrence
Importance value
0.7
0.63
0.3
0.13
0.4
0.30
0.7
0.29
0.1
0.16
0.2
0.06
0.1
0.04
0.1
0.03
0.2
0.51
0.2
0.07
0.1
0.03
0.1
0.03
0.1
0.04
0.2
0.09
0.1
0.03
0.2
0.06
0.1
0.04
0.2
0.47
Frequency of
Average number of
occurrence
Importance valuea
0.4
0.80
0.4
0.70
0.6
0.96
0.3
0.20
0.1
0.07
0.1
0.13
0.1
0.15
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
Appendix G -3. Jacks Creek Well 3 Herbs 2014.
Scientific name
Persea palustris
Polygonum punctatum
Hydrocotyle verticillata
Juncus coriaceous
Phragmites australis
Sauruus cernus
Microstegium vimineum
Baccharis halimifolia
Pluchea odorata
Mikania scandens
Morella cerifera
Typha angustifolia
Arundinaria gigantea
G -1
Average number of
Average percent cover
stems (95%
Frequency of
(95% confidence interval)
confidence interval)
occurrence
Importance valuea
0.30(n /a)
0.10(n /a)
0.1
0.04
18.00(1.97- 34.03)
6.40(1.56- 11.24)
0.7
0.93
2.90( -0.90 -6.70)
7.10( -0.16- 14.36)
0.4
0.49
2.30(- 1.24 -5.84)
0.20(0.20 -0.20)
0.2
0.13
6.00(2.42 -9.58)
2.50(0.43 -4.57)
0.3
0.35
1.10(- 3.45 -5.65)
0.40( -0.61 -1.41)
0.2
0.11
7.50(3.92- 11.08)
7.30(3.70- 10.90)
0.3
0.57
0.10(n /a)
0.10(n /a)
0.1
0.04
0.40( -0.61 -1.41)
0.40( -0.61 -1.41)
0.2
0.09
1.05(- 3.76 -5.86)
0.30( -0.21 -0.81)
0.2
0.10
1.00(n /a)
0.10(n /a)
0.1
0.06
0.30(n /a)
0.10(n /a)
0.1
0.04
0.10(n /a)
0.20(n /a)
0.1
0.04
G -1

G - -`%

Appendix G -4. Jacks Creek Well 3 Shrubs 2014.
Scientific name
Baccharis halimifolia
Fraxinus pennsylvanica
Sabal minor (clumps)
Morella cerifera
Campsis radicans
Parthenocissus quinquefolia
Toxicodendron radicans
Ilex opaca
Smilax bona -nox
Persea palustris
Iva frutescens
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
Appendix G -5. Jacks Creek Well 5 Herbs 2014.
Scientific name
Pluchea odorata
Polygonum punctatum
Phragmites australis
Amaranthus cannabinus
Baccharis halimifolia
Iva frutescens
Bolboshoenus robustus
Average percent cover
(95% confidence interval)
2.40(1.01 -3.79)
2.00(0.27 -3.73)
7.25(6.08 -8.42)
4.00(n /a)
1.00(n /a)
3.25(1.73 -4.77)
1.50(1.50 -1.50)
Appendix G -6. Jacks Creek Well 5 Shrubs 2014.
Scientific name
Saba/ minor (clumps)
Baccharis halimifolia
Iva frutescens
Unknown opposite vine
Morelia cerifera
Average percent cover
(95% confidence interval)
22.50(15.65-29.35)
12.00(7.20- 16.80)
57.86(39.06- 76.65)
5.00(n /a)
3.00(n /a)
Average number of
Average number of
stems (95%
Average percent cover
stems (95%
Frequency of
occurrence
(95% confidence interval)
confidence interval)
occurrence
Importance values
18.70(10.65- 26.75)
4.00(1.05 -6.95)
0.9
0.98
3.60( -0.57 -7.77)
1.10(0.20 -2.00)
0.4
0.28
13.30( -0.88- 27.48)
0.90( -0.38 -2.18)
0.5
0.45
17.00(- 3.32- 37.32)
1.50(0.09 -2.91)
0.6
0.61
0.50(n /a)
0.10(n /a)
0.1
0.04
0.10(n /a)
0.10(n /a)
0.1
0.04
1.60(0.80 -2.40)
0.70(0.70 -0.70)
0.7
0.28
0.80( -0.21 -1.81)
0.20(0.20 -0.20)
0.2
0.09
0.20(0.20 -0.20)
0.20(0.20 -0.20)
0.2
0.08
1.50(- 1.03 -4.03)
0.20(0.20 -0.20)
0.2
0.10
0.50(n /a)
0.20(n /a)
0.1
0.06
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
Appendix G -5. Jacks Creek Well 5 Herbs 2014.
Scientific name
Pluchea odorata
Polygonum punctatum
Phragmites australis
Amaranthus cannabinus
Baccharis halimifolia
Iva frutescens
Bolboshoenus robustus
Average percent cover
(95% confidence interval)
2.40(1.01 -3.79)
2.00(0.27 -3.73)
7.25(6.08 -8.42)
4.00(n /a)
1.00(n /a)
3.25(1.73 -4.77)
1.50(1.50 -1.50)
Appendix G -6. Jacks Creek Well 5 Shrubs 2014.
Scientific name
Saba/ minor (clumps)
Baccharis halimifolia
Iva frutescens
Unknown opposite vine
Morelia cerifera
Average percent cover
(95% confidence interval)
22.50(15.65-29.35)
12.00(7.20- 16.80)
57.86(39.06- 76.65)
5.00(n /a)
3.00(n /a)
Average number of
stems (95%
Frequency of
confidence interval)
occurrence
Importance values
2.40(1.32 -3.48)
0.50
0.48
1.67(1.08 -2.25)
0.60
0.47
4.50(3.58 -5.42)
0.40
0.77
4.00(n /a)
0.10
0.45
1.00(n /a)
0.10
0.15
3.00(1.99 -4.01)
0.20
0.41
2.00(2.00 -2.00)
0.20
0.27
Average number of
stems (95%
Frequency of
confidence interval)
occurrence
Importance values
2.50(1.26 -3.74)
0.4
0.66
1.20(0.88 -1.52)
0.5
0.50
5.00(3.11 -6.89)
0.7
1.39
1.00(n /a)
0.1
0.19
2.00(n /a)
0.1
0.26
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 -3

Appendix G -7. Jacks Creek Well 7 Herbs 2014.
Scientific name
Toxicodendron radicans
Microstegium vimineum
Baccharis halimifolia
Arundinaria gigantea
Rubus trivialis
Smilax bona -nox
Saurruus cernus
Ilex opaca
Juncus coriaceus
Parthenocissus quinquefolia
Echinocloa walteri
Hydrocotyle verticillata
Polygonum punctatum
Mikania scandens
Pluchea odorata
Average percent cover
(95% confidence interval)
7.67(0.02- 15.32)
60.75(38.45- 83.05)
5.00(n /a)
9.00(2.18- 15.82)
3.00(0.98 -5.02)
4.50(3.99 -5.01)
13.33(5.89- 20.78)
2.00(n /a)
50.00(n /a)
3.00(n /a)
3.00(0.98 -5.02)
8.50(4.96- 12.04)
20.00(12.85-27.15)
6.00(n /a)
2.00(n /a)
Appendix G -8. Jacks Creek Well 7 Shrubs 2014.
Scientific name
Ulmus americans
Campsis radicans
Baccharis halimifolia
Toxicodendron radicans
Liquidambar styraciflua
Arundinaria gigantea
Rubus trivialis
Fraxinus pennsylvanica
Carpinus caroliniana
Diospyros virginiana
Persea palustris
Parthenocissus quinquefolia
Sabal minor (clumps)
Quercus laurifolia
Decumaria barbara
Smilax bona -nox
Average percent cover
(95% confidence interval)
30.00(n /a)
3.00(n /a)
8.00(1.14- 14.86)
4.50( -0.51 -9.51)
2.00(n /a)
6.00(3.20 -8.80)
2.00(n /a)
21.88(4.19- 39.56)
3.50(0.97 -6.03)
1.00(1.00 -1.00)
3.67(2.57 -4.76)
1.00(1.00 -1.00)
15.20(4.89- 25.51)
25.00(n /a)
1.00(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
1.33(0.92 -1.75)
58.75(35.73- 81.77)
1.00(n /a)
3.00(1.11 -4.89)
2.00(0.99 -3.01)
1.50(0.99 -2.01)
3.33(1.84 -4.82)
1.00(n /a)
4.00(n /a)
2.00(n /a)
1.50(0.99 -2.01)
19.00(9.89- 28.11)
9.67(6.00- 13.34)
3.00(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
1.00(n /a)
1.00(n /a)
2.00(1.06 -2.94)
1.25(0.89 -1.61)
3.00(n /a)
10.00(5.67- 14.33)
1.00(n /a)
2.50(0.83 -4.17)
1.50(0.99 -2.01)
1.00(1.00 -1.00)
1.00(1.00 -1.00)
1.00(1.00 -1.00)
1.40(0.76 -2.04)
1.00(n /a)
1.00(n /a)
1.00(n /a)
Frequency of
occurrence Importance value'
0.3
0.14
0.8
1.07
0.1
0.06
0.3
0.16
0.2
0.09
0.2
0.09
0.3
0.19
0.1
0.05
0.1
0.32
0.1
0.06
0.2
0.09
0.2
0.27
0.3
0.28
0.1
0.09
0.1
0.05
Frequency of
Average number of
occurrence
Importance value'
0.1
0.29
0.1
0.08
0.8
0.31
0.4
0.16
0.1
0.14
0.4
0.46
0.1
0.07
0.8
0.43
0.2
0.12
0.2
0.08
0.3
0.13
0.2
0.08
0.5
0.27
0.1
0.25
0.1
0.06
0.1
0.06
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
Appendix G -9. Jacks Creek Well 9 Herbs 2014.
Scientific name
Pluchea odorata
Samolus parviflorus
Sagittaria graminea
Echinochloa walteri
Typha angustifolia
Polygonum punctatum
Iva frutescens
G -4
Average number of
Average percent cover
stems (95%
Frequency of
(95% confidence interval)
confidence interval)
occurrence
Importance value'
4.30(0.63 -7.97)
2.90(- 1.60 -6.86)
0.5
0.81
0.10(n /a)
0.10(n /a)
0.1
0.07
9.80(n /a)
2.00(n /a)
0.1
0.67
0.20(n /a)
0.10(n /a)
0.1
0.08
5.00(- 9.46- 19.46)
1.00(- 1.30 -3.30)
0.3
0.48
5.50(1.43 -9.57)
0.90( -0.34 -2.14)
0.3
0.48
1.80(0.79 -2.81)
0.30( -0.21 -0.81)
0.2
0.22
G -4

Amaranthus cannabinus 0.10(n /a) 0.10(n /a) 0.1 0.07
Hydrolea quadralavis 0.60(n /a) 0.40(n /a) 0.1 0.13
G -5

Appendix G -10. Jacks Creek Well 9 Shrubs 2014.
Scientific name
Toxicodendron radicans
Sabal minor (clumps)
Baccharis halimifolia
Morella cerifera
Parthenocissus quinquefolia
Smilax bona -nox
Iva frutescens
Quercus laurifolia
Persea palustris
Juniperus virginiana
Ulmus americana
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
Appendix G -11. Jacobs Creek Herbs 2014.
Scientific name
Saururus cernuus
Microstegium vimineum
Parthenocissus quinquefolia
Toxicodendron radicans
Glechoma hederacea
Carex intumescens
Boehmeria cylindrica
Bignona capreolata
Quercus laurifolia
Arundinaria gigantea
Vitis rotundifolia
Average percent cover
(95% confidence interval)
0.00(n /a)
15.00(- 6.36- 36.36)
0.75( -0.36 -1.86)
1.60( -0.42 -3.62)
5.73(- 3.21- 14.67)
11.20(- 4.90- 27.30)
1.82(- 7.18- 10.82)
0.10(n /a)
0.20(n /a)
5.95(- 6.50- 18.40)
0.05(n /a)
Appendix G -12. Jacobs Creek Shrubs 2014.
Scientific name
Fraxinus pennsylvanica
Carpinus caroliniana
Smilax rotundifolia
Arundinaria gigantea
Vitis rotundifolia
Smilax bona -nox
Callicarpa americana
Berchemia scandens
Saba/ minor (clumps)
Average percent cover
(95% confidence interval)
0.10(n /a)
1.40(- 1.64 -4.44)
0.10(n /a)
35.00(24.27- 45.73)
1.00(n /a)
0.10(n /a)
0.10(n /a)
0.60( -0.41 -1.61)
1.00(1.00 -1.00)
Average number of
stems (95%
confidence interval)
3.8(n /a)
14.70(- 6.57- 36.57)
0.60(0.03 -1.47)
1.20(1.60 -1.60)
1.90(3.16 -8.30)
1.60(10.79- 11.61)
0.60( -0.20 -3.84)
0.1 0(n /a)
0.1 0(n /a)
2.60(1.97 -9.93)
0.1 0(n /a)
Average number of
stems (95%
confidence interval)
0.1 0(n /a)
0.30( -0.21 -0.89)
0.1 0(n /a)
115.00(-3.18-251.88)
0.1 0(n /a)
0.1 0(n /a)
0.1 0(n /a)
0.30( -0.21 -0.89)
0.20(0.20 -0.20)
Frequency of
occurrence Importance values
0.1
Average number of
0.4
1.04
Average percent cover
stems (95%
Frequency of
0.16
(95% confidence interval)
confidence interval)
occurrence
Importance values
0.20(0.20 -0.20)
0.20(0.20 -0.20)
0.2
0.10
18.10(- 7.06- 43.26)
2.20(0.53 -3.87)
0.6
0.98
8.00(- 1.62- 17.62)
1.10(0.26 -1.94)
0.6
0.56
5.30(- 3.03- 13.63)
0.60(0.19 -1.01)
0.4
0.35
0.10(n /a)
0.10(n /a)
0.1
0.05
1.90(- 3.47 -7.27)
0.60( -0.64 -1.84)
0.3
0.24
3.50(- 1.74 -8.74)
1.00(0.08 -1.92)
0.4
0.38
5.00(n /a)
0.10(n /a)
0.1
0.17
0.50(n /a)
0.10(n /a)
0.1
0.06
0.10(n /a)
0.10(n /a)
0.1
0.05
0.10(n /a)
0.10(n /a)
0.1
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
Appendix G -11. Jacobs Creek Herbs 2014.
Scientific name
Saururus cernuus
Microstegium vimineum
Parthenocissus quinquefolia
Toxicodendron radicans
Glechoma hederacea
Carex intumescens
Boehmeria cylindrica
Bignona capreolata
Quercus laurifolia
Arundinaria gigantea
Vitis rotundifolia
Average percent cover
(95% confidence interval)
0.00(n /a)
15.00(- 6.36- 36.36)
0.75( -0.36 -1.86)
1.60( -0.42 -3.62)
5.73(- 3.21- 14.67)
11.20(- 4.90- 27.30)
1.82(- 7.18- 10.82)
0.10(n /a)
0.20(n /a)
5.95(- 6.50- 18.40)
0.05(n /a)
Appendix G -12. Jacobs Creek Shrubs 2014.
Scientific name
Fraxinus pennsylvanica
Carpinus caroliniana
Smilax rotundifolia
Arundinaria gigantea
Vitis rotundifolia
Smilax bona -nox
Callicarpa americana
Berchemia scandens
Saba/ minor (clumps)
Average percent cover
(95% confidence interval)
0.10(n /a)
1.40(- 1.64 -4.44)
0.10(n /a)
35.00(24.27- 45.73)
1.00(n /a)
0.10(n /a)
0.10(n /a)
0.60( -0.41 -1.61)
1.00(1.00 -1.00)
Average number of
stems (95%
confidence interval)
3.8(n /a)
14.70(- 6.57- 36.57)
0.60(0.03 -1.47)
1.20(1.60 -1.60)
1.90(3.16 -8.30)
1.60(10.79- 11.61)
0.60( -0.20 -3.84)
0.1 0(n /a)
0.1 0(n /a)
2.60(1.97 -9.93)
0.1 0(n /a)
Average number of
stems (95%
confidence interval)
0.1 0(n /a)
0.30( -0.21 -0.89)
0.1 0(n /a)
115.00(-3.18-251.88)
0.1 0(n /a)
0.1 0(n /a)
0.1 0(n /a)
0.30( -0.21 -0.89)
0.20(0.20 -0.20)
Frequency of
occurrence Importance values
0.1
0.18
0.4
1.04
0.4
0.19
0.2
0.16
0.4
0.35
0.3
0.43
0.2
0.14
0.1
0.04
0.1
0.05
0.4
0.38
0.1
0.04
Frequency of
occurrence Importance values
0.1
0.07
0.2
0.17
0.1
0.07
0.4
2.14
0.1
0.09
0.1
0.07
0.1
0.07
0.2
0.15
0.2
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 -6

Appendix G -13. Long Creek Well 2B Herbs 2014.
Appendix G -14. Long Creek Well 2B Shrubs 2014.
Scientific name
Morella cerifera
Vaccinium corymbosum
Persea palustris
Vitis rotundifolia
Arundinaria gigantea
Baccharis halimifolia
Ilex glabra
Acer rubrum
Smilax bona -nox
Average percent cover
(95% confidence interval)
22.90(6.66- 39.14)
1.90( -0.63 -4.43)
2.40( -0.08 -4.88)
0.70( -0.82 -2.22)
0.50( -0.01 -1.01)
3.15(- 1.07 -7.37)
0.40(n /a)
2.00(2.00 -2.00)
0.50(n /a)
Average number of
stems (95%
confidence interval)
0.20(n /a)
0.90( -0.53 -2.33)
5.90(- 12.40- 24.20)
0.10(n /a)
0.30(n /a)
0.20(n /a)
0.40( -0.61 -1.41)
0.10(n /a)
4.40(0.87 -7.93)
0.50(- 1.02 -2.02)
0.10(n /a)
1.10(n /a)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
0.10(n /a)
2.30(0.36 -4.24)
0.40(0.40 -0.40)
15.80( -0.62- 32.22)
0.10(n /a)
1.50(n /a)
0.10(n /a)
0.10(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
4.50(- 11.74- 20.74)
0.40(- 2.13 -2.93)
0.60(- 1.88 -3.08)
0.20(- 1.32 -1.72)
0.20( -0.31 -0.71)
0.70(- 3.52 -4.92)
0.30(n /a)
0.20(0.20 -0.20)
0.10(n /a)
Frequency of
Average percent cover
Scientific name
(95% confidence interval)
Eleocharis tortilis
0.50(n /a)
Acer rubrum
0.20( -0.01 -0.41)
Dichanthelium
4.80(- 13.17- 22.77)
Smilax rotundifolia
0.10(n /a)
Morella cerifera
0.80(n /a)
Woodwardia aerolata
0.40(n /a)
Persea palustris
0.70(- 1.83 -3.23)
Glyceria striata
0.40(n /a)
Arundinaria gigantea
4.40(- 1.68- 10.48)
Gelsemium sempervirens
0.30( -0.21 -0.81)
Bohmeria cylindrica
0.15(n /a)
Carex debilis
1.10(n /a)
Mikania scandens
0.10(0.10 -0.10)
Berchemia scandens
0.01(n /a)
Quercus laurifolia
0.10(n /a)
Smilax bona -nox
0.05(n /a)
Pluchea odorata
2.55(0.86 -4.24)
Toxicodendron radicans
1.80(0.79 -2.81)
Hydrocotyle verticillata
4.38(- 1.85- 10.60)
Unknown spike
0.20(n /a)
Samolus valerandi spp. parviflorus
1.50(n /a)
Rubus flagellaris
0.05(n /a)
Baccharis halimifolia
0.20(n /a)
Vitis rotundifolia
0.08(n /a)
Appendix G -14. Long Creek Well 2B Shrubs 2014.
Scientific name
Morella cerifera
Vaccinium corymbosum
Persea palustris
Vitis rotundifolia
Arundinaria gigantea
Baccharis halimifolia
Ilex glabra
Acer rubrum
Smilax bona -nox
Average percent cover
(95% confidence interval)
22.90(6.66- 39.14)
1.90( -0.63 -4.43)
2.40( -0.08 -4.88)
0.70( -0.82 -2.22)
0.50( -0.01 -1.01)
3.15(- 1.07 -7.37)
0.40(n /a)
2.00(2.00 -2.00)
0.50(n /a)
Average number of
stems (95%
confidence interval)
0.20(n /a)
0.90( -0.53 -2.33)
5.90(- 12.40- 24.20)
0.10(n /a)
0.30(n /a)
0.20(n /a)
0.40( -0.61 -1.41)
0.10(n /a)
4.40(0.87 -7.93)
0.50(- 1.02 -2.02)
0.10(n /a)
1.10(n /a)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
0.10(n /a)
2.30(0.36 -4.24)
0.40(0.40 -0.40)
15.80( -0.62- 32.22)
0.10(n /a)
1.50(n /a)
0.10(n /a)
0.10(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
4.50(- 11.74- 20.74)
0.40(- 2.13 -2.93)
0.60(- 1.88 -3.08)
0.20(- 1.32 -1.72)
0.20( -0.31 -0.71)
0.70(- 3.52 -4.92)
0.30(n /a)
0.20(0.20 -0.20)
0.10(n /a)
Frequency of
occurrence
Importance value'
0.1
0.05
0.3
0.11
0.3
0.43
0.1
0.03
0.1
0.06
0.1
0.05
0.2
0.09
0.1
0.04
0.3
0.37
0.2
0.07
0.1
0.03
0.1
0.10
0.2
0.06
0.1
0.03
0.1
0.03
0.1
0.03
0.6
0.31
0.2
0.13
0.4
0.72
0.1
0.03
0.1
0.13
0.1
0.03
0.1
0.03
0.1
0.03
Frequency of
occurrence
Importance value'
0.8
1.61
0.2
0.19
0.3
0.27
0.2
0.13
0.2
0.12
0.4
0.35
0.1
0.09
0.2
0.17
0.1
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
Appendix G -15. Huddles Creek Main Prong Well 2 Herbs 2014.
G -7
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance value'
Cyperus odoratus
0.50(n /a)
0.40(n /a)
0.1
0.57
Typha angustifolia
1.50(n /a)
0.40(n /a)
0.1
0.88
Toxicodendron radicans
0.80(n /a)
0.20(n /a)
0.1
0.53
Baccharis halimifolia
0.10(n /a)
0.10(n /a)
0.1
0.24
Asplenium platyneuron
0.10(n /a)
0.10(n /a)
0.1
0.24
G -7

Phytolacca americana 0.10(n /a) 0.20(n /a) 0.1 0.31
Galium tinctorium 0.10(n /a) 0.10(n /a) 0.1 0.24
G -8

Appendix G -16. Huddles Creek Main Prong Well 2 Shrubs 2014.
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
Appendix G -17. Huddles Creek Main Prong Well 5 Herbs 2014.
Scientific name
Typha angustifolia
Hydrocotyle verticillata
Toxicodendron radicans
Smilax rotundifolia
Baccharis halimifolia
Pluchea odorata
Cyperus odoratus
Echinochloa walteri
Symphyotrichum subulatum
Parthenocissus quinquefolia
Average number of
Average percent cover
stems (95%
Average percent cover
stems (95%
Frequency of
1.10(n /a)
Scientific name (95% confidence interval)
confidence interval)
occurrence
Importance values
Baccharis halimifolia 19.30(1.87- 36.73)
3.80(1.23 -6.78)
0.7
2.57
Smilax rotundifolia 0.60( -0.41 -1.61)
0.20(0.20 -0.20)
0.2
0.28
Morella cerifera 0.50(n /a)
0.10(n /a)
0.1
0.15
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
Appendix G -17. Huddles Creek Main Prong Well 5 Herbs 2014.
Scientific name
Typha angustifolia
Hydrocotyle verticillata
Toxicodendron radicans
Smilax rotundifolia
Baccharis halimifolia
Pluchea odorata
Cyperus odoratus
Echinochloa walteri
Symphyotrichum subulatum
Parthenocissus quinquefolia
Appendix G -18. Huddles Creek Main Prong Well 5 Shrubs 2014.
Scientific name
Baccharis halimifolia
Morella cerifera
Smilax rotundifolia
Toxicodendron radicans
Ulmus americana
Parthenocissus quinqufolia
Average percent cover
(95% confidence interval)
18.40(5.79- 31.01)
2.40( -5.07 -9.87)
0.50(n /a)
1.40(0.48 -2.32)
1.00(n /a)
0.20(n /a)
Average number of
stems (95%
confidence interval)
4.00(1.47 -6.53)
0.30(0.30 -0.30)
0.40(n /a)
0.40(0.40 -0.40)
0.10(n /a)
0.10(n /a)
Frequency of
Average number of
Average percent cover
stems (95%
(95% confidence interval)
confidence interval)
6.00(n /a)
1.10(n /a)
1.00(n /a)
5.80(n /a)
0.90(0.39- 1.41))
0.30( -0.21 -0.81)
0.50(n /a)
0.50(n /a)
0.10(n /a)
0.10(n /a)
0.40( -0.01 -0.81)
1.20( -0.69 -3.09)
1.00(- 1.89 -3.89)
0.60( -0.64 -1.84)
1.80(0.79 -2.81)
1.80(- 1.24 -4.84)
0.20(n /a)
0.80(n /a)
0.10(n /a)
0.10(n /a)
Appendix G -18. Huddles Creek Main Prong Well 5 Shrubs 2014.
Scientific name
Baccharis halimifolia
Morella cerifera
Smilax rotundifolia
Toxicodendron radicans
Ulmus americana
Parthenocissus quinqufolia
Average percent cover
(95% confidence interval)
18.40(5.79- 31.01)
2.40( -5.07 -9.87)
0.50(n /a)
1.40(0.48 -2.32)
1.00(n /a)
0.20(n /a)
Average number of
stems (95%
confidence interval)
4.00(1.47 -6.53)
0.30(0.30 -0.30)
0.40(n /a)
0.40(0.40 -0.40)
0.10(n /a)
0.10(n /a)
Frequency of
occurrence
Importance value'
0.1
0.65
0.1
0.62
0.2
0.22
0.1
0.14
0.1
0.08
0.3
0.32
0.3
0.32
0.2
0.42
0.1
0.14
0.1
0.08
Frequency of
occurrence
Importance value
0.9
2.00
0.3
0.31
0.1
0.15
0.4
0.34
0.1
0.11
0.1
0.08
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
Appendix G -19. Huddles Creek Main Prong Well 6 Herbs 2014.
occurrence
Average number of
0.1
Average percent cover
stems (95%
Scientific name
(95% confidence interval)
confidence interval)
Cyperus odoratus
6.00(n /a)
7.00(n /a)
Baccharis halimifolia
0.65(n /a)
1.00(n /a)
Symphyotrichum subulatum
3.00(1.99 -4.01)
2.00(2.00 -2.00)
Toxicodendron radicans
1.13(0.37 -1.88)
1.00(1.00 -1.00)
Morella cerifera
2.00(n /a)
1.00(n /a)
Mikania scandens
2.00(n /a)
1.00(n /a)
Pluchea odorata
4.00(n /a)
4.00(n /a)
G -9
Frequency of
occurrence
Importance value
0.1
0.84
0.1
0.20
0.2
0.50
0.2
0.34
0.1
0.28
0.1
0.28
0.1
0.56

Appendix H -20. Huddles Creek Main Prong Well 6 Shrubs 2014.
Appendix G -21. Huddles Creek Main Prong Well 8 Herbs 2014.
Scientific name
Polygonum lapathifolium
Toxicodendron radicans
Hydrocotyle verticillata
Carex lurida
Iva frutescens
Baccharis halimifolia
Pluchea odorata
Symphyotrichum subulatum
Osmunda regalis
Echinochloa walteri
Phragmites australis
Mikania scandens
Cyperus odoratus
Rubus argutus
Polygonum punctatum
Average number of
0.7
0.99
Average percent cover
stems (95%
Frequency of
0.55
Scientific name (95% confidence interval)
confidence interval)
occurrence
Importance values
Baccharis halimifolia 6.89(2.90- 10.88)
2.44(1.43 -3.46)
0.9
1.09
Persea palustris 3.00(1.57 -4.43)
1.33(0.92 -1.75)
0.3
0.47
Toxicodendron radicans 10.13(2.51- 17.74)
1.00(1.00 -1.00)
0.4
0.78
Morella cerifera 1.88(0.77 -2.98)
1.00(1.00 -1.00)
0.4
0.42
Ilex opaca 1.00(n /a)
1.00(n /a)
0.1
0.24
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
1.83(0.67 -2.98)
3.25(1.78 -4.72)
0.4
Appendix G -21. Huddles Creek Main Prong Well 8 Herbs 2014.
Scientific name
Polygonum lapathifolium
Toxicodendron radicans
Hydrocotyle verticillata
Carex lurida
Iva frutescens
Baccharis halimifolia
Pluchea odorata
Symphyotrichum subulatum
Osmunda regalis
Echinochloa walteri
Phragmites australis
Mikania scandens
Cyperus odoratus
Rubus argutus
Polygonum punctatum
Appendix G -22. Huddles Creek Main Prong Well 8 Shrubs 2014.
Scientific name
Iva frutescens
Baccharis halimifolia
Persea borbonia
Toxicodendron radicans
Vitis rotundifolia
Average percent cover
(95% confidence interval)
17.40(7.57- 27.23)
18.00(1.63- 34.37)
4.00(3.28 -4.72)
20.00(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
3.40(1.00 -5.80)
3.43(0.85 -6.00)
1.33(0.92 -1.75)
2.00(n /a)
2.00(n /a)
Frequency of
occurrence Importance value'
0.5
Average number of
0.7
0.99
Average percent cover
stems (95%
Frequency of
0.55
(95% confidence interval)
confidence interval)
occurrence
Importance values
5.33(3.53 -7.13)
2.67(1.57 -3.76)
0.3
0.23
18.50(7.60- 29.40)
1.25(0.89 -1.61)
0.4
0.35
0.50(n /a)
7.00(n /a)
0.1
0.25
2.00(0.99 -3.01)
2.50(1.99 -3.01)
0.2
0.16
10.00(n /a)
1.00(n /a)
0.1
0.16
2.00(2.00 -2.00)
1.00(1.00 -1.00)
0.2
0.12
1.83(0.67 -2.98)
3.25(1.78 -4.72)
0.4
0.25
4.50(3.99 -5.01)
1.00(1.00 -1.00)
0.2
0.14
10.00(n /a)
1.00(n /a)
0.1
0.16
0.75(0.50 -1.00)
1.50(0.99 -2.01)
0.2
0.12
41.00(1.54- 80.46)
6.50(2.96- 10.04)
0.2
0.64
1.50(n /a)
1.00(n /a)
0.1
0.08
4.50(2.98 -6.02)
1.50(0.99 -2.01)
0.2
0.16
3.00(n /a)
1.00(n /a)
0.1
0.09
3.00(n /a)
1.00(n /a)
0.1
0.09
Appendix G -22. Huddles Creek Main Prong Well 8 Shrubs 2014.
Scientific name
Iva frutescens
Baccharis halimifolia
Persea borbonia
Toxicodendron radicans
Vitis rotundifolia
Average percent cover
(95% confidence interval)
17.40(7.57- 27.23)
18.00(1.63- 34.37)
4.00(3.28 -4.72)
20.00(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
3.40(1.00 -5.80)
3.43(0.85 -6.00)
1.33(0.92 -1.75)
2.00(n /a)
2.00(n /a)
Frequency of
occurrence Importance value'
0.5
0.86
0.7
0.99
0.3
0.35
0.1
0.55
0.1
0.24
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 -10

Appendix G -23. Huddles Creek Main Prong Well 9 Herbs 2014.
Appendix G -25. Huddles Creek Main Prong Well 10 Herbs 2014.
Scientific name
Pluchea odorata
Cyperus odoratus
Galium tinctorium
Symphyotrichum subulatum
Polygonum lapathifolium
Toxicodendron radicans
Hydrocotyle verticillata
Average percent cover
(95% confidence interval)
2.33(0.68 -3.99)
7.50(4.97 -1 0.03)
1.00(n /a)
4.63(l.96-7.29)
1.00(n /a)
1.00(n /a)
1.00(n /a)
G -11
Average number of
Average number of
stems (95%
Frequency of
Average percent cover
stems (95%
Frequency of
4.33(0.20 -8.46)
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
Cyperus odoratus
3.55( -.70- 10.80)
1.50(- 1.80 -4.08)
0.3
0.40
Symphyotrichum subulatum
3.70( -0.15 -7.55)
2.20( -0.24 -4.64)
0.4
0.49
Echinochloa walteri
1.50(n /a)
2.00(n /a)
0.1
0.23
Hydrocotyle verticillata
0.40(n /a)
5.10(n /a)
0.1
0.34
Pluchea odorata
1.10(- 3.45 -5.65)
2.70(- 7.92- 13.32)
0.2
0.29
Polygonum lapathifolium
3.40( -0.75 -7.55)
1.50( -0.29 -3.29)
0.4
0.44
Mikania scandens
0.05(n /a)
0.10(n /a)
0.1
0.05
Polygonum punctatum
0.30( -0.21 -0.81)
0.20(0.20 -0.20)
0.2
0.11
Amanranthus cannabinus
1.00(n /a)
0.10(n /a)
0.1
0.10
Carex lurida
2.60(- 2.46 -7.66)
1.60(- 2.45 -5.65)
0.2
0.31
Baccharis halimifolia
1.00(- 3.05 -5.05)
1.00(n /a)
0.1
0.15
Toxicodendron radicans
0.20( -031 -0.71)
0.20(n /a)
0.1
0.07
Appendix G -24. Huddles Creek
Main Prong Well 9 Shrubs 2014.
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
Baccharis halimifolia
10.60(1.87- 19.33)
1.90(0.58 -3.22)
0.8
1.36
Rosa palustris
0.30(n /a)
0.10(n /a)
0.1
0.08
Iva frutescens
4.60( -0.83- 10.03)
0.60(0.28 -0.92)
0.5
0.60
Toxicodendron radicans
1.40(- 0.40 -3.20)
0.30(030 -0.30)
0.3
0.28
Morelia cerifera
1.20(n /a)
0.20(n /a)
0.1
0.15
Persea borbonia
0.50(n /a)
0.10(n /a)
0.1
0.09
Ulmus americana
0.70(0.19 -1.21)
0.20(020 -0.20)
0.2
0.17
Quercus laurifolia
0.10(n.a)
0.50(n /a)
0.1
0.17
Pinus taeda
0.30(n /a)
0.10(n /a)
0.1
0.08
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
Appendix G -25. Huddles Creek Main Prong Well 10 Herbs 2014.
Scientific name
Pluchea odorata
Cyperus odoratus
Galium tinctorium
Symphyotrichum subulatum
Polygonum lapathifolium
Toxicodendron radicans
Hydrocotyle verticillata
Average percent cover
(95% confidence interval)
2.33(0.68 -3.99)
7.50(4.97 -1 0.03)
1.00(n /a)
4.63(l.96-7.29)
1.00(n /a)
1.00(n /a)
1.00(n /a)
G -11
Average number of
stems (95%
Frequency of
confidence interval)
occurrence
Importance value
4.33(0.20 -8.46)
0.3
0.44
5.50(3.98 -7.02)
0.2
0.66
6.00(n /a)
0.1
0.24
4.50(3.58 -5.42)
0.4
0.64
1.00(n /a)
0.1
0.15
1.00(n /a)
0.1
0.15
32.00(n /a)
0.1
0.72

Appendix H -26. Huddles Creek Main Prong Well 10 Shrubs 2014.
0.68
0.5
Average number of
0.2
Average percent cover
stems (95%
Scientific name
(95% confidence interval)
confidence interval)
Baccharis halimifolia
8.00(4.52- 11.48)
3.25(1.94 -4.56)
Morella cerifera
3.00(1.57 -4.43)
1.20(0.88 -1.52)
Ilex opaca
1.00(1.00 -1.00)
1.00(1.00 -1.00)
Rosa palustris
3.00(n /a)
5.00(n /a)
Toxicodendron radicans
5.25(0.44- 10.06)
1.00(1.00 -1.00)
Vaccinium corymbosum
15.00(n /a)
3.00(n /a)
Persea borbonia
0.50(n /a)
1.00(n /a)
Arundinaria gigantea
5.00(n /a)
10.00(n /a)
Quercus laurifolia
1.00(n /a)
1.00(n /a)
Frequency of
occurrence Importance value'
0.8
0.68
0.5
0.34
0.2
0.15
0.1
0.31
0.2
0.25
0.1
0.52
0.1
0.10
0.1
0.54
0.1
0.11
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
Appendix G -27. Huddles Creek Main Prong Well 12 Herbs 2014.
Appendix G -28. Huddles Creek Main Prong Well 12 Shrubs 2014.
Scientific name
Morella cerifera
Persea borbonia
Baccharis halimifolia
Fraxinus pennsylvanica
Ulmus americana
Smilax rotundifolia
Toxicodendron radicans
Ilex opaca
Liquidambar styraciflua
Quercus laurifolia
Average number of
Average number of
Average percent cover
stems (95%
Average percent cover
stems (95%
Frequency of
confidence interval)
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance value'
Pluchea odorata
2.00(0.57 -3.43)
4.25(2.90 -5.60)
0.4
0.32
Echinochloa walteri
2.50(0.86 -4.14)
2.33(1.51 -3.16)
0.3
0.26
Cyperus odoratus
13.50(4.69- 22.31)
3.33(1.84 -4.82)
0.3
0.58
Symphyotrichum subulatum
4.20(0.87 -7.53)
4.80(1.21 -8.39)
0.5
0.44
Toxicodendron radicans
5.25(0.44- 10.06)
1.50(0.99 -2.01)
0.2
0.27
Hydrocotyle verticillata
6.00(n /a)
47.00(n /a)
0.1
0.94
Baccharis halimifolia
1.00(n /a)
1.00(n /a)
0.1
0.09
Pleopeltis polypodioides (on fallen lit
1.00(n /a)
1.00(n /a)
0.1
0.09
Appendix G -28. Huddles Creek Main Prong Well 12 Shrubs 2014.
Scientific name
Morella cerifera
Persea borbonia
Baccharis halimifolia
Fraxinus pennsylvanica
Ulmus americana
Smilax rotundifolia
Toxicodendron radicans
Ilex opaca
Liquidambar styraciflua
Quercus laurifolia
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 -12
Average number of
Average percent cover
stems (95%
Frequency of
(95% confidence interval)
confidence interval)
occurrence
Importance value'
15.80(9.16- 22.44)
3.20(0.46 -5.94)
0.5
0.56
1.00(n /a)
1.00(n /a)
0.1
0.10
16.14(- 1.01- 33.30)
3.00(1.06 -4.94)
0.7
0.65
3.00(n /a)
1.00(n /a)
0.1
0.13
25.00(n /a)
1.00(n /a)
0.1
0.37
3.00(n /a)
1.00(n /a)
0.1
0.13
6.00(6.00 -6.00)
1.50(0.99 -2.01)
0.2
0.23
3.00(n /a)
1.00(n /a)
0.1
0.13
4.00(n /a)
1.00(n /a)
0.1
0.14
12.00(n /a)
8.00(n /a)
0.1
0.55
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 -12

Appendix G -29. Huddles Creek West Prong Well 2 Herbs 2014.
Appendix G -30. Huddles Creek West Prong Well 2 Shrubs 2014.
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
Phragmites australis
30.00(9.77- 50.23)
5.25(- 2.34- 12.84)
0.5
2.11
Toxicodendron radicans
1.75(0.10 -3.40)
0.75(0.75 -0.75)
0.8
0.67
Rubus flagellaris
0.38(n /a)
0.25(n /a)
0.3
0.22
Appendix G -30. Huddles Creek West Prong Well 2 Shrubs 2014.
G -13
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
�Bacchads halimifolia
43.75(24.96- 62.54)
8.00(4.54- 11.46)
1.0
1.37
Toxicodendron radicans
2.00(0.51 -3.49)
1.00(0.59 -1.41)
0.8
0.29
Berchemia scandens
0.50(0.50 -0.50)
0.50(0.50 -0.50)
0.5
0.17
Morella cerifera
8.75(6.22- 11.28)
0.75(0.24 -1.26)
0.5
0.30
Corpus amomum
6.25(n/a)
0.25(n /a)
0.3
0.17
Arundinaria gigantea
7.50(n /a)
5.75(n/a)
0.3
0.52
Campsis radicans
0.50(n /a)
0.25(n /a)
0.3
0.09
Vitis rotundifolia
0.13(n /a)
0.25(n /a)
0.3
0.08
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
Appendix G -31. Huddles Creek West Prong Well 4 Herbs 2014.
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance value
Symphyotrichum subulatum
14.00(5.75- 22.25)
5.67(1.73 -9.61)
0.3
0.71
Echiniochloa walteri
10.50(0.89 - 20.11)
4.00(1.98 -6.02)
0.2
0.50
Pluchea odorata
2.50(1.99 -3.01)
6.00(2.96 -9.04)
0.2
0.47
Baccharis halimifolia
7.60(0.11- 15.09)
1.00(1.00 -1.00)
0.2
0.31
Toxicodendron radicans
4.17(0.55 -7.79)
1.33(0.92 -1.75)
0.3
0.35
Cyperus odoratus
22.50(19.97- 25.03)
3.00(1.99 -4.01)
0.2
0.65
G -13

Appendix G -32. Huddles Creek West Prong Well 4 Shrubs 2014.
Scientific name
Baccharis halimifolia
Morella cerifera
Toxicodendron radicans
Ulmus americans
Bignonia capreolata
Rosa palustris
Average percent cover
(95% confidence interval)
24.00(12.18-35.82)
10.00(10.00-10.00)
13.50(11.98-15.02)
3.00(n /a)
2.00(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
4.67(3.06 -6.28)
2.00(0.99 -3.01)
1.50(0.99 -2.01)
1.00(n /a)
2.00(n /a)
1.00(n /a)
Frequency of
occurrence Importance value'
0.6
1.29
0.2
0.51
0.2
0.53
0.1
0.22
0.1
0.28
0.1
0.18
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
Appendix G -33. Huddles Creek West Prong Well 7 Herbs 2014.
0.23
0.1
0.18
Average number of
0.91
0.1
Average percent cover
stems (95%
Scientific name
0.1
(95% confidence interval)
confidence interval)
Typha angustifolia
1.50(n /a)
0.50(n /a)
Polygonum lapathifolium
1.00(n /a)
0.40(n /a)
Symphyotrichum subulatum
5.50(0.04- 10.96)
3.00(- 1.47 -7.74)
Rosa palustris
0.10(n /a)
0.10(n /a)
Polygonum punctatum
2.10(- 3.06 -7.26)
1.20(- 1.92 -4.32)
Cyperus odoratus
0.10(n /a)
0.10(n /a)
Pluchea odorata
1.70(- 1.19 -4.59)
2.50(- 1.44 -6.44)
Hydrocotyle verticillata
0.40(n /a)
1.80(n /a)
Toxicodendron radicans
0.60(0.60 -0.60)
0.30( -0.21 -0.81)
Appendix G -34. Huddles Creek West Prong Well 7 Shrubs 2014.
Scientific name
Rosa palustris
Morella cerifera
Toxicodendron radicans
Baccharis halimifolia
Persea palustris
Average percent cover
(95% confidence interval)
0.20(n /a)
0.60(- 1.42 -2.62)
1.60(0.59 -2.61)
2.40(0.14 -4.66)
0.80( -0.21 -1.81)
Average number of
stems (95%
confidence interval)
0.1 0(n /a)
0.20(0.20 -0.20)
0.60(0.19 -1.01)
0.70(0.02 -1.38)
0.20(0.20 -0.20)
Frequency of
occurrence Importance value'
0.1
0.23
0.1
0.18
0.3
0.91
0.1
0.08
0.3
0.47
0.1
0.08
0.3
0.57
0.1
0.28
0.2
0.20
Frequency of
occurrence Importance value'
0.1
0.17
0.2
0.37
0.4
0.93
0.4
1.13
0.2
0.41
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
Appendix G -35. Huddles Creek West Prong Well 8 Herbs 2014.
Scientific name
Pluchea odorata
Polygonum lapathifolium
Echinochloa walteri
Baccharhis halimifolia
Average percent cover
(95% confidence interval)
3.30( -5.37- 11.97)
0.40(n /a)
1.00(n /a)
0.50(n /a)
G -14
Average number of
stems (95%
confidence interval)
1.10( -0.97 -3.17)
0.1 0(n /a)
0.10(n /a)
0.10(n /a)
Frequency of
occurrence Importance value'
0.3 1.92
0.1 0.32
0.1 0.43
0.1 0.33

Appendix G -36. Huddles Creek West Prong Well 8 Shrubs 2014.
Scientific name
Bacchads halimifolia
Ulmus americans
Toxicodendron radicans
Berchemia scandens
Average percent cover
(95% confidence interval)
19.50(9.00- 30.00)
1.30( -0.22 -2.82)
0.20(n /a)
1.00(n /a)
Average number of
stems (95%
confidence interval)
3.20(1.50 -4.90)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
Frequency of
occurrence Importance value'
0.7 2.41
0.2 0.30
0.1 0.13
0.1 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
Appendix G -37. Porter Creek Well 5 Herbs 2014.
Scientific name
Quercus laurifolia
Arundinaria gigantea
Lonicera japonica
Carex intumescens
Parthenocissus quinquefolia
Smilax rotundifolia
Toxicodendron radicans
Bignonia capreolata
Berchemia scandens
Mitchella repens
Average percent cover
(95% confidence interval)
0.05(n /a)
0.50(n /a)
0.78(- 1.34 -2.90)
2.55(- 1.02 -6.12)
0.40(n /a)
2.35( -0.20 -4.90)
0.28( -0.36 -0.91)
1.35(- 1.49 -4.19)
0.10(n /a)
2.00(n /a)
Appendix G -38. Porter Creek Well 5 Shrubs 2014.
Scientific name
Arundinaria gigantea
Smilax rotundifolia
Berchemia scandens
Carpinus caroliniana
Average percent cover
(95% confidence interval)
1.00(n /a)
0.10(n /a)
0.10(n /a)
9.70(7.56- 11.84)
Average number of
stems (95%
confidence interval)
0.50(n /a)
0.30(n /a)
1.00( -0.65 -2.65)
0.90(0.22 -1.58)
0.1 0(n /a)
1.40(0.03 -2.77)
0.20(0.20 -0.20)
1.60(- 2.07 -5.27)
0.1 0(n /a)
1.70(n /a)
Average number of
stems (95%
confidence interval)
1.00(n /a)
0.1 0(n /a)
0.1 0(n /a)
0.40(0.40 -0.40)
Frequencyof
occurrence Importance value'
0.1
0.12
0.1
0.13
0.3
0.35
0.4
0.55
0.1
0.10
0.4
0.60
0.2
0.15
0.3
0.48
0.1
0.07
0.1
0.46
Frequency of
occurrence Importance value'
0.1 0.86
0.1 0.21
0.1 0.21
0.4 1.71
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 -15

Appendix G -39. Porter Creek Well 9A Herbs 2014.
Scientific name
Saururus cernuus
Microstegium vimineum
Campsis radicans
Alternanthera philoxeroides
Carex lurida
Galium tinctorium
Lonicera japonica
Toxicodendron radicans
Unknown polygonum
Unknown blue flower
Diospyros virginiana
Carex intumescens
Quercus laurifolia
Average percent cover
(95% confidence interval)
31.01(1.35- 60.67)
4.5(- 6.12- 15.12)
0.50(n /a)
10.50(- 37.56- 58.56)
1.30(n /a)
0.20(n /a)
0.30(n /a)
1.51(- 1.41 -4.43)
1.40(n /a)
0.50(n /a)
0.60(n /a)
0.20(n /a)
0.05(n /a)
Appendix G -40. Porter Creek Well 9A Shrubs 2014.
Scientific name
Smilax rotundifolia
Campsis radicans
Diospyros virginiana
Toxicodendron radicans
Fraxinus pennsylvanica
Average percent cover
(95% confidence interval)
0.30(n /a)
0.20(n /a)
5.70(1.01- 10.40)
1.00(1.00 -1.00)
1.00(n /a)
Average number of
stems (95%
confidence interval)
10.60(3.62- 17.58)
2.90(0.37 -5.43)
0.40(n /a)
12.30(- 46.88- 71.48)
0.10(n /a)
0.10(n /a)
0.30(n /a)
1.90( -0.86 -4.66)
1.10(n /a)
0.10(n /a)
0.20(n /a)
0.20(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
0.20(n /a)
0.10(n /a)
1.50(0.78 -2.33)
0.30( -0.21 -0.89)
0.10(n /a)
Frequency of
Average number of
occurrence
Importance value'
0.7
1.23
0.2
0.26
0.1
0.06
0.2
0.69
0.1
0.07
0.1
0.05
0.1
0.06
0.4
0.26
0.1
0.10
0.1
0.05
0.1
0.06
0.1
0.05
0.1
0.05
Frequency of
Average number of
occurrence
Importance value'
0.1
0.25
0.1
0.19
0.3
1.75
0.2
0.51
0.1
0.29
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
Appendix G -41. DCUT 11 Well 2B Herbs 2014.
Scientific name
Microstegium vimineum
Toxicodendron radicans
Bignonia capreolata
Quercus nigra
Lonicera japonica
Smilax rotundifolia
Osmunda cinnamomea
Woodwardia aero /ata
Parthenocissus quinquefolia
Viola sorria
Saurrus cernus
Ilex opaca
Fraxinus pennsylvancia
Ligustrum sinense
Carex intumescens
Decumaria barbara
Crategus marshalli
Botrychium dissectum
G -16
Average number of
Average percent cover
stems (95%
Frequency of
(95% confidence interval)
confidence interval)
occurrence
Importance value'
19.60(- 2.08- 41.28)
19.40(- 2.22- 41.02)
0.9
1.31
5.83(- 4.47- 16.13)
2.10(0.67 -3.53)
0.7
0.36
0.25( -0.51 -1.01)
0.20(0.20 -0.20)
0.2
0.05
0.40(n /a)
0.10(n /a)
0.1
0.03
2.10( -0.20 -4.40)
2.20( -0.00 -4.40)
0.6
0.24
0.40(n /a)
0.10(n /a)
0.1
0.03
2.55( -0.48 -5.58)
1.40(0.48 -2.32)
0.4
0.19
0.65(0.40 -0.90)
0.90( -0.62 -2.42)
0.2
0.09
0.40( -0.61 -1.41)
0.80(0.80 -0.80)
0.2
0.08
0.02(n /a)
0.10(n /a)
0.1
0.02
3.30(- 2.81 -9.41)
1.40(- 1.11 -3.91)
0.3
0.19
0.20(n /a)
0.10(n /a)
0.1
0.03
0.50( -0.01 -1.01)
0.20(0.20 -0.20)
0.2
0.06
0.51( -0.14 -1.16)
1.30( -0.58 -3.18)
0.4
0.13
0.40(- 1.12 -1.92)
0.30( -0.21 -0.81)
0.2
0.06
0.30(n /a)
0.30(n /a)
0.1
0.04
0.30(n /a)
0.70(n /a)
0.1
0.05
0.10(n /a)
0.10(n /a)
0.1
0.03
G -16

Appendix G -42. DCUT 11 Well 2B Shrubs 2014.
Scientific name
Bignonia capreolata
Toxicodendron radicans
Decumaria barbara
Persea palustris
Ligustrum sinense
Ilex opaca
Average percent cover
(95% confidence interval)
0.10(n /a)
0.70( -0.82 -2.22)
0.20(n /a)
4.00(- 6.33- 14.33)
4.00(- 3.91- 11.91)
1.50(- 1.03 -4.03)
Average number of
occurrence
stems (95%
Frequency of
0.32
confidence interval)
occurrence
Importance values
0.10(n /a)
0.1
0.16
0.20(0.20 -0.20)
0.2
0.36
0.10(n /a)
0.1
0.16
0.50( -0.33 -1.46)
0.3
0.94
0.50(0.09 -0.98)
0.3
0.94
0.20(0.20 -0.20)
0.2
0.43
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
Appendix G -43. DCUT 19 Well 2A Herbs 2014.
Scientific name
Woodwardia aerolata
Lonicera japonica
Fraxinus pennsylvanica
Asplenium platyneuron
Bohmeria cylindrica
Saururus cernuus
Quercus laurifolia
Microstegium vimineum
Arisaema triphyllum
Mikania scandens
Smilax rotundifolia
Vaccinium corymbosum
Carex comosa
Average percent cover
(95% confidence interval)
1.70(0.23 -3.17)
0.96( -0.30 -2.22)
1.50(n /a)
0.68(0.00 -1.36)
0.54( - 0.73 -1.81)
2.10( -0.40 -4.60)
0.20(n /a)
2.30(- 1.89 -6.49)
0.70( -0.82 -2.22)
0.15(n /a)
0.35( - 0.41 -1.11)
1.55(- 2.75 -5.85)
0.80(n /a)
Appendix G -44. DCUT 19 Well 2A Shrubs 2014.
Scientific name
Persea palustris
Lonicera japonica
Ligustrum sinense
Vitis rotundifolia
Liriodendron tulipfera
Quercus nigra
Arundinaria gigantea
Vaccinium corymbosum
Smilax rotundifolia
Acer rubrum
Quercus michauxii
Callicarpa americana
Morella cerifera
Berchemia scandens
Average percent cover
(95% confidence interval)
1.60( -5.48 -8.68)
0.40( -0.61 -1.41)
0.10(n /a)
6.70( -0.80- 14.20)
1.00(n /a)
1.60(0.59 -2.61)
2.30(- 6.30- 10.90)
0.50(n /a)
1.30( -0.22 -2.82)
2.50(n /a)
1.50(n /a)
0.40(n /a)
0.50(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
0.80(0.22 -1.38)
2.30(- 1.30 -5.90)
0.10(n /a)
0.60(0.28 -0.92)
0.60( -0.12 -1.32)
1.90( -0.09 -3.89)
0.20(n /a)
2.00(- 1.38 -5.38)
0.40( -0.61 -1.41)
0.10(n /a)
0.20(0.20 -0.20)
0.80(- 1.22 -2.82)
0.10(n /a)
Average number of
stems (95%
confidence interval)
0.20(0.20 -0.20)
0.20(0.20 -0.20)
0.1 0(n /a)
0.80(0.41 -1.19)
0.1 0(n /a)
0.20(0.20 -0.20)
1.90(- 4.68 -8.48)
0.1 0(n /a)
0.40( -0.61 -1.41)
0.1 0(n /a)
0.1 0(n /a)
0.1 0(n /a)
0.1 0(n /a)
0.20(n /a)
Frequency of
occurrence
Importance value'
0.40
0.32
0.60
0.47
0.10
0.16
0.50
0.25
0.40
0.21
0.50
0.49
0.10
0.06
0.30
0.46
0.20
0.15
0.10
0.05
0.20
0.10
0.20
0.26
0.10
0.10
Frequency of
occurrence
Importance value'
0.20
0.21
0.20
0.15
0.10
0.07
0.50
0.72
0.10
0.11
0.20
0.21
0.20
0.61
0.10
0.09
0.20
0.24
0.10
0.19
0.10
0.14
0.10
0.08
0.10
0.09
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 -17

Appendix G -45. Duck Well 1 B Herbs 2014.
Scientific name
Smilax rotundifolia
Arundinaria gigantea
Acer rubrum
Juncus coriaceous
Quercus seedling
Mitchella repens
Ilex opaca
Woodwardia areolata
Parthenocissus quiquefolia
Persea palustris
Carex intumescens
Glyceria striata
Bignonia capreolata
Osmunda cinnamomea
Liquidambar styraciflua
Vitis rotundifolia
Sauurus cernus
Leucothoe racemosa
Average percent cover
(95% confidence interval)
0.57(0.05 -1.09)
16.70(8.74- 24.66)
0.03(0.03 -0.03)
0.95(- 2.34 -4.24)
0.01(n /a)
0.70( -1.57 -2.97)
0.13( -0.02 -0.28)
10.30( -0.94- 21.54)
0.04( -0.06 -0.14)
0.21( -0.75 -1.17)
1.20(- 2.52 -4.92)
0.20(n /a)
0.03(n /a)
0.90(n /a)
0.02(n /a)
0.02(n /a)
0.60(n /a)
0.02(n /a)
Appendix G -46. Duck Well 1B Shrubs 2014.
Scientific name
Ilex opaca
Arundinaria gigantea
Toxicodendron radicans
Liquidambar styraciflua
Persea palustris
Average percent cover
(95% confidence interval)
7.50(n /a)
18.30(5.38- 31.22)
0.10(n /a)
0.50(n /a)
0.20(n /a)
Average number of
stems (95%
confidence interval)
1.60(0.80 -2.40)
8.50(4.51- 12.49)
0.30(0.30 -0.30)
0.40(0.40 -0.40)
0.10(n /a)
2.40(- 2.07 -6.87)
0.50(0.14 -0.86)
4.80(1.03 -8.57)
0.30( -0.21 -0.81)
0.40( -0.61 -1.41)
0.40( -0.01 -0.81)
0.40(n /a)
0.20(n /a)
0.20(n /a)
0.10(n /a)
0.10(n /a)
0.50(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
0.10(n /a)
11.60(3.39- 21.11)
0.10(n /a)
0.10(n /a)
0.10(n /a)
Frequency of
occurrence
Importance values
0.7
0.23
1
1.11
0.3
0.07
0.2
0.09
0.1
0.02
0.3
0.19
0.4
0.11
0.7
0.68
0.2
0.05
0.2
0.06
0.3
0.11
0.1
0.04
0.1
0.03
0.1
0.06
0.1
0.02
0.1
0.02
0.1
0.06
0.1
0.02
Frequency of
occurrence
Importance value'
0.1
0.37
0.9
2.35
0.1
0.09
0.1
0.10
0.1
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 -18

Appendix G -47. Duck Well 2A Herbs 2014.
Appendix G -48. Duck Well 2A Shrubs 2014.
Scientific name
Decumaria barbara
Callicarpa americana
Berchemia scandens
Vitis rotundifolia
Campsis radicans
Smilax laurifolia
Acer rubrum
Arundinaria gigantea
Fraxinus pennsylvanica
Liquidambar styraciflua
Average percent cover
(95% confidence interval)
0.20(n /a)
0.40(n /a)
0.30(0.30 -0.30)
0.40( -0.61 -1.41)
0.10(n /a)
0.20(0.20 -0.20)
0.20(n /a)
0.10(n /a)
0.40( -0.61 -1.41)
0.50(n /a)
Average number of
stems (95%
confidence interval)
5.40(- 1.43- 12.23)
0.30( -0.21 -0.81)
1.00( -0.09 -2.09)
0.40(n /a)
n/a
0.30( -0.21 -0.81)
0.30( -0.21 -0.81)
0.30(n /a)
3.70( -0.40 -7.80)
0.40(n /a)
0.70( -0.39 -1.79)
0.30( -0.21 -0.81)
0.10(n /a)
0.10(n /a)
5.00(1.27 -8.73)
0.30( -0.21 -0.81)
0.10(n /a)
0.60(n /a)
0.60(n /a)
0.10(n /a)
0.30( -0.21 -0.81)
0.20(0.20 -0.20)
0.10(n /a)
0.60(n /a)
0.30(n /a)
Average number of
stems (95%
confidence interval)
0.10(n /a)
0.10(n /a)
0.30(0.30 -0.30)
0.20(0.20 -0.20)
0.10(n /a)
0.40( -0.61 -1.57)
0.10(n /a)
0.10(n /a)
0.20(0.20 -0.20)
0.10(n /a)
Frequency of
Average percent cover
Scientific name
(95% confidence interval)
Toxicodendron radicans
6.88( -5.08- 18.84)
Parthenocissus quinquefolia
0.06( -0.14 -0.26)
Berchemia scandens
0.18( -0.08 -0.44)
Lonicera japonica
0.03(n /a)
Saururus cernuus
n/a
Smilax laurifolia
0.08( -0.02 -0.18)
Carex intumescens
0.22( -0.69 -1.13)
Mitchella repens
0.02(n /a)
Woodwardia areolata
7.90(- 7.95- 23.75)
Woodwardia virginica
0.30(n /a)
Arisaema triphyllum
0.23( -0.06 -0.52)
Quercus michauxii
0.65(- 1.12 -2.42)
Liquidambar styraciflua
0.20(n /a)
Asplenium platyneuron
0.02(n /a)
Arundinaria gigantea
9.3( -0.47- 19.07)
Bignonia capreolata
0.13( -0.22 -0.48)
Juncus coriaceous
0.03(n /a)
Leucothoe racemosa
0.15(n /a)
Euonymus americanus
0.20(n /a)
Ilex opaca
0.02(n /a)
Smilax rotundifolia
0.61(- 2.37 -3.59)
Liriodendron tulipfera
0.04( -0.06 -0.14)
Quercus laurifolia
0.30(n /a)
Galium tinctorium
0.10(n /a)
Acer rubrum
0.10(n /a)
Appendix G -48. Duck Well 2A Shrubs 2014.
Scientific name
Decumaria barbara
Callicarpa americana
Berchemia scandens
Vitis rotundifolia
Campsis radicans
Smilax laurifolia
Acer rubrum
Arundinaria gigantea
Fraxinus pennsylvanica
Liquidambar styraciflua
Average percent cover
(95% confidence interval)
0.20(n /a)
0.40(n /a)
0.30(0.30 -0.30)
0.40( -0.61 -1.41)
0.10(n /a)
0.20(0.20 -0.20)
0.20(n /a)
0.10(n /a)
0.40( -0.61 -1.41)
0.50(n /a)
Average number of
stems (95%
confidence interval)
5.40(- 1.43- 12.23)
0.30( -0.21 -0.81)
1.00( -0.09 -2.09)
0.40(n /a)
n/a
0.30( -0.21 -0.81)
0.30( -0.21 -0.81)
0.30(n /a)
3.70( -0.40 -7.80)
0.40(n /a)
0.70( -0.39 -1.79)
0.30( -0.21 -0.81)
0.10(n /a)
0.10(n /a)
5.00(1.27 -8.73)
0.30( -0.21 -0.81)
0.10(n /a)
0.60(n /a)
0.60(n /a)
0.10(n /a)
0.30( -0.21 -0.81)
0.20(0.20 -0.20)
0.10(n /a)
0.60(n /a)
0.30(n /a)
Average number of
stems (95%
confidence interval)
0.10(n /a)
0.10(n /a)
0.30(0.30 -0.30)
0.20(0.20 -0.20)
0.10(n /a)
0.40( -0.61 -1.57)
0.10(n /a)
0.10(n /a)
0.20(0.20 -0.20)
0.10(n /a)
Frequency of
occurrence
Importance value'
0.5
0.54
0.2
0.05
0.3
0.10
0.1
0.03
0.3
n/a
0.2
0.05
0.2
0.05
0.1
0.03
0.5
0.50
0.1
0.04
0.3
0.09
0.2
0.07
0.1
0.03
0.1
0.02
0.7
0.63
0.2
0.05
0.1
0.02
0.1
0.05
0.1
0.05
0.1
0.02
0.2
0.07
0.2
0.04
0.1
0.03
0.1
0.05
1.1
0.19
Frequency of
occurrence
Importance value'
0.1
0.20
0.1
0.27
0.3
0.48
0.2
0.39
0.1
0.16
0.2
0.44
0.1
0.20
0.1
0.16
0.2
0.39
0.1
0.30
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 -19

Appendix G -49. Duck Well 3A Herbs 2014.
Appendix G -50. Duck Well 3A Shrubs 2014.
Scientific name
Vitis rotundifolia
Smilax rotundifolia
Arundinaria gigantea
Liquidambar styraciflua
Persea palustris
Morella cerifera
Campsis radicans
Symplocus tinctoria
Cyrilla racemiflora
Toxicodendron radicans
Average percent cover
(95% confidence interval)
0.30( -0.21 -0.81)
0.20(0.20 -0.20)
4.60( -0.49 -9.69)
8.20(- 6.65- 23.05)
0.30( -0.21 -0.81)
0.20(n /a)
0.20(n /a)
1.00(n /a)
0.30(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
1.80(0.56 -3.04)
1.20( -0.35 -2.75)
1.40(0.57 -2.23)
2.00(- 1.32 -5.32)
3.30(1.41 -5.19)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
0.10(n /a)
0.70(0.19 -1.21)
0.40( -0.01 -0.81)
0.80(0.80 -0.80)
0.10(n /a)
0.60(- 1.42 -2.62)
0.50( -0.33 -1.33)
0.60( -0.12 -1.32)
0.30( -0.21 -0.81)
0.10(n /a)
0.10(n /a)
0.60(n /a)
0.40(n /a)
0.20(n /a)
0.40(n /a)
Average number of
stems (95%
confidence interval)
0.20(0.20 -0.20)
0.20(0.20 -0.20)
5.30(- 1.38- 13.04)
0.80( -0.21 -1.97)
0.20(0.20 -0.20)
0.20(n /a)
0.10(n /a)
0.20(n /a)
0.10(n /a)
0.10(n /a)
Frequency of
Average percent cover
Scientific name
(95% confidence interval)
Woodwardia areolata
1.70( -0.10 -3.50)
Carex intumescens
3.17(- 3.37 -9.71)
Parthenocissus quinquefolia
0.27(0.06 -0.48)
Smilax glauca
0.18( -0.09 -0.45)
Pinus seedling
0.15(0.15 -0.15)
Acer rubrum
0.02(0.02 -0.02)
Botrychium dissectum
0.01(n /a)
Triadendum walteri
0.05(n /a)
Vitis rotundifolia
0.03(n /a)
Viola sororia
0.18(0.05 -0.30)
Liriodendron tulipfera
0.26( -0.46 -0.98)
Arundinaria gigantea
1.70( -0.83 -4.23)
Vaccinium corymbosum
0.04(n /a)
Eleocharis tortilis
3.50(- 4.09- 11.09)
Microstegium viminium
0.25( -0.47 -0.97)
Toxicodendron radicans
0.23( -0.06 -0.52)
Berchemia scandens
0.12( -0.28 -0.52)
Persea borbonia
0.40(n /a)
Liquidambar styraciflua
0.10(n /a)
Lycopus virginicus
0.20(n /a)
Rubus argutus
0.20(n /a)
Galium tinctorium
0.03(n /a)
Glyceria striata
0.30(n /a)
Appendix G -50. Duck Well 3A Shrubs 2014.
Scientific name
Vitis rotundifolia
Smilax rotundifolia
Arundinaria gigantea
Liquidambar styraciflua
Persea palustris
Morella cerifera
Campsis radicans
Symplocus tinctoria
Cyrilla racemiflora
Toxicodendron radicans
Average percent cover
(95% confidence interval)
0.30( -0.21 -0.81)
0.20(0.20 -0.20)
4.60( -0.49 -9.69)
8.20(- 6.65- 23.05)
0.30( -0.21 -0.81)
0.20(n /a)
0.20(n /a)
1.00(n /a)
0.30(n /a)
0.10(n /a)
Average number of
stems (95%
confidence interval)
1.80(0.56 -3.04)
1.20( -0.35 -2.75)
1.40(0.57 -2.23)
2.00(- 1.32 -5.32)
3.30(1.41 -5.19)
0.20(0.20 -0.20)
0.10(n /a)
0.10(n /a)
0.10(n /a)
0.70(0.19 -1.21)
0.40( -0.01 -0.81)
0.80(0.80 -0.80)
0.10(n /a)
0.60(- 1.42 -2.62)
0.50( -0.33 -1.33)
0.60( -0.12 -1.32)
0.30( -0.21 -0.81)
0.10(n /a)
0.10(n /a)
0.60(n /a)
0.40(n /a)
0.20(n /a)
0.40(n /a)
Average number of
stems (95%
confidence interval)
0.20(0.20 -0.20)
0.20(0.20 -0.20)
5.30(- 1.38- 13.04)
0.80( -0.21 -1.97)
0.20(0.20 -0.20)
0.20(n /a)
0.10(n /a)
0.20(n /a)
0.10(n /a)
0.10(n /a)
Frequency of
occurrence
Importance value'
0.3
0.31
0.4
0.40
0.7
0.25
0.5
0.24
0.3
0.28
0.2
0.05
0.1
0.03
0.1
0.03
0.1
0.03
0.2
0.10
0.3
0.10
0.2
0.22
0.1
0.03
0.2
0.35
0.3
0.11
0.3
0.12
0.2
0.07
0.1
0.06
0.1
0.03
0.1
0.07
0.1
0.06
0.1
0.03
0.1
0.07
Frequency of
occurrence
Importance value'
0.2
0.15
0.2
0.14
0.5
1.26
0.4
0.84
0.2
0.15
0.1
0.09
0.1
0.08
0.1
0.14
0.1
0.08
0.1
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 -20

Appendix G -51. Duck Creek Well 4B Herbs 2014.
G -21
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
Bohmeria cylindrica
0.50( -0.01 -1.01)
0.50( -0.01 -1.09)
0.2
0.11
Liriodendron tulipfera
0.04(0.04 -0.04)
0.40( -0.61 -1.57)
0.2
0.07
Parthenocissus quinquefolia
0.16( -0.10 -0.42)
0.80(0.43 -1.23)
0.6
0.18
Mitchella repens
0.25(0.03 -0.47)
1.30(0.54 -2.19)
0.7
0.24
Juncus coriaceous
0.64(- 2.19 -3.47)
0.30( -0.21 -0.89)
0.2
0.11
Botrychium dissectum
0.15( -0.10 -0.40)
0.80(- 2.24 -4.32)
0.2
0.10
Toxicodendron radicans
0.11( -0.01 -0.23)
0.50(0.14 -0.91)
0.4
0.12
Triadenum walteri
0.03(n /a)
0.10(n /a)
0.1
0.03
Unknown 1
0.10(n /a)
0.40(n /a)
0.1
0.05
Euonymus americanus
0.02(n /a)
0.30(n /a)
0.1
0.04
Microstegium vimineum
8.50(n /a)
8.30(n /a)
0.1
1.19
Carex intumescens
1.40(- 1.31 -4.11)
0.90(0.22 -1.69)
0.4
0.25
Smilax glauca
0.02(n /a)
0.10(n /a)
0.1
0.03
Ilex opaca
0.05(n /a)
0.10(n /a)
0.1
0.03
Berchemia scandens
0.15( -0.01 -0.31)
0.90(0.54 -1.31)
0.4
0.15
Quercus seedling
0.01(n /a)
0.10(n /a)
0.1
0.03
Persea palustris
0.01(n /a)
0.10(n /a)
0.1
0.03
Carpinus caroliniana
0.10(n /a)
0.30(n /a)
0.1
0.05
Vitis rotundifolia
0.15( -0.10 -0.40)
0.30( -0.21 -0.89)
0.2
0.07
Unknown tri- leaved
0.06( -0.04 -0.16)
0.30( -0.21 -0.89)
0.2
0.06
Lonicera japonica
0.02(n /a)
0.10(n /a)
0.1
0.03
Acer rubrum
0.10(n /a)
0.10(n /a)
0.1
0.03
Appendix G -52. Duck Creek Well 4B Shrubs 2014.
Average number of
Average percent cover
stems (95%
Frequency of
Scientific name
(95% confidence interval)
confidence interval)
occurrence
Importance values
Parthenocissus quinquefolia
0.30(0.30 -0.30)
0.30(0.30 -0.30)
0.3
0.94
Toxicodendron radicans
0.10(n /a)
0.10(n /a)
0.1
0.31
Campsis radicans
0.20(0.20 -0.20)
0.30( -0.21 -0.89)
0.2
0.72
Berchemia scandens
0.10(n /a)
0.10(n /a)
0.1
0.31
Vitis rotundifolia
0.10(n /a)
0.10(n /a)
0.1
0.31
Unknown opp. Vine
0.10(n /a)
0.20(n /a)
0.1
0.40
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 -21