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Fifth Annual and Summary Report
T-1
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-1
PCS Phosphate Company, Inc.
February 2016

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Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016

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Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-3
PCS Phosphate Company, Inc.
February 2016

Table 2a. Summary of monthly 2014 visual observations (see Table B-1) from upper Scott Creek
and its headwater systems (UT1-UT7) and a tributary to Smith Creek (UT8). (Numbering of flow
stations starts with the most downstream station at each tributary. No flow monitoring station was
installed at USC12B and 13B.)
Flow station Number of months with Flow station Number of months with
visual observation of flow visual observation of flow
USC -1 B
USC -213
USC -3B
USC -413
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3
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1
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1
1
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0
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0
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UT6-4B
UT6-513
UT6-613
2
3
4
3
1
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UT7-3B
2
1
1
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UT1-2B
UT1-3B
UT1-413
3
0
1
0
UT3-8B
1
UT8-1 B
UT8-213
UT8-3B
UT8-4B
UT8-5B
7
3
4
1
2
0
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0
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3
2
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3
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2
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0
UT3-5B
1
UT3-6B
2
UT3-7B
3
UT3-8B
1
UT3-9B
0
*One flow event is excluded when data collected during above normal rainfall conditions are
excluded. All other sites stay the same.
Hell Swamp/Scott Creek Mitigation Site T-4 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 2b. Summary of visual observations of flow in 2014 from Bay Ciy, Scarp, Porter Creek, and Duck
Creek.
Flow siteI Flow station
(# of site visits)
Bay Citv'
Scarp
Porter Creek 2
Number of months with
visual observation of flow
BCF1 (6) most upstream 4
BCF2 (6) 4
BCF3 (6) 4
BCF4 (6) most downstream 4
HF1 (6) 3
UD1-F1 (12) 5
UD1WF1 (12) upstream 2
UD1WF2 (12) downstream 1
UD8F1 (12) downstream 9
UD8F2 (12) upstream 9
PCF1 (10)
7
Duck Creek 2
DKCW1 F (10) upstream 4
DKCW2F (10) downstream 4
DKCW3F (10) upstream 4
DKCW4F (10) downstream 4
'Site visits ocurred every other month
2 N visit occurred in September or October
Hell Swamp/Scott Creek Mitigation Site T-5 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-7
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-7
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-8
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-8
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-9
PCS Phosphate Company, Inc.
February 2016
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T-10
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T-10
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
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T-11
PCS Phosphate Company, Inc.
February 2016
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T-11
PCS Phosphate Company, Inc.
February 2016

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T-12
PCS Phosphate Company, Inc.
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T-12
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
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T-13
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T-13
PCS Phosphate Company, Inc.
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T-14
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February 2016
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T-14
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T-15
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Fifth Annual and Summary Report February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-18
PCS Phosphate Company, Inc.
February 2016
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T-18
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February 2016

Hell Swamp/Scott Creek Mitigation Site
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T-19
PCS Phosphate Company, Inc.
February 2016
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T-19
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
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T-20
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-20
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-21
PCS Phosphate Company, Inc.
February 2016
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Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-21
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-22
PCS Phosphate Company, Inc.
February 2016
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Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-22
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-23
PCS Phosphate Company, Inc.
February 2016
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Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-23
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-24
PCS Phosphate Company, Inc.
February 2016
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Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-24
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-25
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-25
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-26
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report February 2016
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Hell Swamp/Scott Creek Mitigation Site T-27 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-28
PCS Phosphate Company, Inc.
February 2016
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T-31
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February 2016
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T-32
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T-34
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February 2016
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February 2016

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T-35
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T-35
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T-36
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T-37
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February 2016
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Hell Swamp/Scott Creek Mitigation Site
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T-39
PCS Phosphate Company, Inc.
February 2016
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T-43
PCS Phosphate Company, Inc.
February 2016

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T-44
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T-44
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February 2016

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T-46
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T-46
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February 2016

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T-47
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T-47
PCS Phosphate Company, Inc.
February 2016

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T-48
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-48
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-49
PCS Phosphate Company, Inc.
February 2016
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Fifth Annual and Summary Report
T-49
PCS Phosphate Company, Inc.
February 2016

Hell Swamp/Scott Creek Mitigation Site
Fifth Annual and Summary Report
T-50
PCS Phosphate Company, Inc.
February 2016
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February 2016

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Hell Swamp/Scott Creek Mitigation Site T-53 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 5. Fifth annual (fall 2014) survival of trees and shrubs planted in 123 0.22 -acre plots and 19 0.017 -acre riparian
buffer plots at Hell Swamp and volunteer woody wetland stems (taller than 1 ft) counted in those plots in 2014. Most
often, stems of the planted species were smaller and not in the same rows as the stems planted in 2010; however, it
can not be determined for certain if some of these stems of planted species were missed during annual surveys, or true
volunteers.
PLANTED AND VOLUNTEER STEMS
Tagged at
Fall 2014 stems
baseline
Alive
Unsure'
Tota 12
ALL PLOTS
13,053
20
13,073
Density
Planted Trees
1
477
Wetland Shrubs
Count
11,520
9,581
281
9,862
Density
420
350
10
360
Planted Shrubs
27,024
20
36,923
Total Wetland Stem Density
Count
430
331
7
338
Density
16
12
0
12
Planted Unknown
Density
243
Count
512
0
10
10
Total Planted Stems
Density
26
Count
12,462
9,912
298
10,210
Planted Density (stems-27.4ac)
455
362
11
373
----
Volunteer Wetland Trees
—--—--—--—-
—-- — -- — --
-- — -- — --
--—--— -- — ---
Count
3,472
1,996
NA
Density
127
87
Volunteer Wetland Shrubs
Count
13,640
13,640
NA
Density
498
498
Total Volunteer Stems
Count
17,112
15,636
NA
Density (stems -27.4 ac)
625
571
PLANTED AND VOLUNTEER STEMS
Wetland Trees
Count
13,053
20
13,073
Density
476
1
477
Wetland Shrubs
Count
13,971
0
23,850
Density
510
0
870
Total Wetland Stem Count
27,024
20
36,923
Total Wetland Stem Density
986
4
12348
--------------------------------------------------------------------
Volunteer Nuisance Trees
Count
6,654
Density
243
Volunteer Non -wetland Stems
Count
713
Density
26
'Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling
event and dead if at both the current and last sampling events the stem was not unquestionably alive.
2Total includes alive + unsure.
Hell Swamp/Scott Creek Mitigation Site T-54 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 6. Survival of trees and shrubs by species planted in 19 0.017 -acre plots in 0 -50 -foot riparian buffer at Hell Swamp from baseline (summer
2010) to fall 2014. Species with no values in any columns were among the planted stems but not represented in any buffer plots.
'The number tagged at baseline has been adjusted to reflect the proper identification of species and more planted stems found in later fall
sampling events.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the
current and last sampling events the stem was not unquestionably alive.
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus changed to Eubotrys
Hell Swamp/Scott Creek Mitigation Site T-55 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
Tagged at
Fall 2014 stems
Percent Surviva14
Percent of
Scientific name
Common name
baseline'
Alive Unsure Total3
Alive Total3
alive stems
Large trees
Carya aquatica
water hickory
1
1 0 1
100 100
0.50
Fagus grandifolia
American beech
0
0 0 0
-- --
--
Fraxinus pennsylvanica
green ash
35
33 0 33
94 94
16.42
Nyssa aquatica
water tupelo
5
2 0 2
40 40
1.00
Nyssa biflora
swamp black gum
37
21 0 21
57 57
10.45
Prunus serotina
black cherry
0
0 0 0
-- --
--
Quercus alba
white oak
4
4 0 4
100 100
1.99
Q. falcata
southern red oak
1
1 0 1
100 100
0.50
Q. laurifolia
laurel oak
11
9 1 10
82 91
4.48
Q. lyrata
overcup oak
38
30 1 31
79 82
14.93
Q. michauxii
swamp chestnut oak
31
23 2 25
74 81
11.44
Q. nigra
water oak
11
11 0 11
100 100
5.47
Q. pagoda
cherrybark oak
0
0 0 0
-- --
--
Q. phellos
willow oak
4
4 0 4
100 100
1.99
Q. spp.
oak
0
0 0 0
-- --
0.00
Taxodium distichum
bald cypress
36
27 2 29
75 81
13.43
Ulmus americana
American elm
13
13 0 13
100 100
6.47
Small trees
Clethra alnifolia
sweet pepperbush
8
3 0 3
38 38
1.49
Cyrilla racemiflora
titi
5
2 1 3
40 60
1.00
Diospyros virginiana
common persimmon
7
7 0 7
100 100
3.48
Ilex decidua
possumhaw
0
0 0 0
-- --
0.00
1. opaca
American holly
4
2 0 2
50 50
1.00
Magnolia virginiana
sweet bay
15
7 0 7
47 47
3.48
Oxydendron arboreum
sourwood
0
0 0 0
-- --
--
Persea palustris
red bay
7
1 0 1
14 14
0.50
Total
273
201 7 208
74 76
Density (stems =0.32)
1 853
1 628 22 650
Shrubs
Cephalanthus occidentalis
buttonbush
1
0 0 0
-- --
Cornus amomum
silky dogwood
0
0 0 0
--
Ilex glabra
ink berry
0
0 0 0
-
Ilex verticillata
winterberry
0
0 0 0
-- --
--
Itea virginica
Virginia willow
10
7 0 7
70 70
88.00
Leucothoe racemosa 5
swamp doghobble
1
1 0 1
100 100
12.50
Lindera benzoin
spicebush
0
0 0 0
-- --
--
Rosa palustris
swamp rose
0
0 0 0
Vaccinium corymbosum
high bush blueberry
0
0 0 0
- -
Viburnum nudum
possumhaw viburnum
0
0 0 0
-- --
Total
12
8 0 867
67
Density (stems =0.32)
38
25 0 25
Unknown sp.
20
0 0 0
0 0
Total
Total
305
209 7 216
69 71
Total density
953
653 22 706
'The number tagged at baseline has been adjusted to reflect the proper identification of species and more planted stems found in later fall
sampling events.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the
current and last sampling events the stem was not unquestionably alive.
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus changed to Eubotrys
Hell Swamp/Scott Creek Mitigation Site T-55 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

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Hell Swamp/Scott Creek Mitigation Site T-56 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 8. Survival of trees and shrubs planted in 109 0.22 -acre plots (23.98 ac sampled) at Hell Swamp from baseline (summer 2010) to fall 2014.
'The number tagged at baseline reflects the edits/additions in subsequent years as unknowns are identified or species are corrected.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the current and
last sampling events the stem was not unquestionably alive.
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus chanqed to Eubotrvs
Hell Swamp/Scott Creek Mitigation Site T-57 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
Tagged at
Fall 2014 stems
Percent surviva 14
Percent of
Scientific name
Common name
baseline'
Alive Unsure Total3
Alive Tota 13
alive stems
Large trees
Carya aquatica
water hickory
153
145
2
147
95
96
1.76
Fagus grandifolia
American beech
79
72
1
73
91
92
0.87
Fraxinus pennsylvanica
green ash
1,164
1,084
25
1109
93
95
13.17
Nyssa aquatica
water tupelo
538
233
9
242
43
45
2.83
Nyssa biflora
swamp black gum
681
554
10
564
81
83
6.73
Prunus serotina
black cherry
20
11
1
12
55
60
0.13
Quercus alba
white oak
205
196
4
200
96
98
2.38
Q. falcata
southern red oak
163
157
0
157
96
96
1.91
Q. laurifolia
laurel oak
643
555
9
564
86
88
6.74
Q. lyrata
overcup oak
904
872
3
875
96
97
10.59
Q. michauxii
swamp chestnut oak
1572
1,334
65
1399
85
89
16.20
Q. nigra
water oak
859
759
35
794
88
92
9.22
Q. pagoda
cherrybark oak
580
456
36
492
79
85
5.54
Q. phellos
willow oak
661
629
6
635
95
96
7.64
Q. spp.
oak
60
5
0
5
8
8
0.06
Taxodium distichum
bald cypress
653
508
5
513
78
79
6.17
Ulmus americana
American elm
505
435
28
463
86
92
5.28
Small trees
Clethra alnifolia
sweet pepperbush
122
74
1
75
61
61
0.90
Cyrilla racemiflora
titi
18
13
0
13
72
72
0.16
Diospyros virginiana
common persimmon
34
32
2
34
94
100
0.39
Ilex decidua
possumhaw
4
4
0
4
100
100
0.05
/. opaca
American holly
26
18
1
19
69
73
0.22
Magnolia virginiana
sweet bay
181
76
8
84
42
46
0.92
Oxydendron arboreum
sourwood
2
1
0
1
50
50
0.01
Persea palustris
1 red bay
1 76
1 10
1 1
1 11
1 13
14
1 0.12
Total
9,903
8,233
252
8,485
83
86
Density (stems-.- 23.98 ac
413
343
11
354
Shrubs
Cephalanthus occidentalis
buttonbush
41
35
0
35
85
85
12.15
Cornus amomum
silky dogwood
24
21
1
22
88
92
7.29
Ilex glabra
ink berry
18
13
3
16
72
89
4.51
Ilex verticillata
winterberry
21
19
0
19
90
90
6.60
Itea virginica
Virginia willow
182
149
1
150
82
82
51.74
Leucothoe racemosa 5
Swamp doghobble
1
1
0
1
100
100
0.35
Lindera benzoin
spicebush
25
5
1
6
20
24
1.74
Rosa palustris
swamp rose
1
0
0
0
0
0
0.00
Vaccinium corymbosum
high bush blueberry
50
43
1
44
86
88
14.93
Viburnum nudum
1possurnhaw viburnum
1 6
2
1 0
2
1 33
33
1 0.69
Total
369
288
7
295
78
80
Density stems-,23.98ac
15
12
0
12
Unknown sp.
1 431
0
10
10
0
2
Total
Total
10,703
8,521
269
8,790
80
82
Total Density (stems -23.98 ac)
446
355
11
367
'The number tagged at baseline reflects the edits/additions in subsequent years as unknowns are identified or species are corrected.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the current and
last sampling events the stem was not unquestionably alive.
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus chanqed to Eubotrvs
Hell Swamp/Scott Creek Mitigation Site T-57 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 9. Survival of trees and shrubs planted in all 123 0.22 -acre plots (27.06 ac sampled) at Hell Swamp from baseline (summer 2010) to fall 2014
'The number tagged at baseline reflects the edits/additions in subsequent years as unknowns were identified and species were corrected.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the current and
last sampling events the stem was not unquestionably alive
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus changed to Eubotrys
Hell Swamp/Scott Creek Mitigation Site T-58 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
Tagged at
Fall 2014 stems
Percent survival
Percent of
Scientific name
Common name
baseline'
Alive Unsure Tota 13
Alive Tota 13
alive stems
Large trees
Carya aquatica
water hickory
172
164
2
166
95
97
1.75
Fagus grandifolia
American beech
89
82
1
83
92
93
0.87
Fraxinus pennsylvanica
green ash
1357
1,271
28
1299
94
96
13.55
Nyssa aquatica
water tupelo
664
292
10
302
44
45
3.11
Nyssa biflora
swamp black gum
729
595
11
606
82
83
6.34
Prunus serotina
black cherry
29
15
3
18
52
62
0.16
Quercus alba
white oak
233
222
6
228
95
98
2.37
Q. falcata
southern red oak
173
166
1
167
96
97
1.77
Q. laurifolia
laurel oak
677
584
10
594
86
88
6.23
Q. lyrata
overcup oak
1,079
1,046
4
1050
97
97
11.15
Q. michauxii
swamp chestnut oak
1,687
1,438
68
1506
85
89
15.33
Q. nigra
water oak
899
798
35
833
89
93
8.51
Q. pagoda
cherrybark oak
643
509
40
549
79
85
5.43
Q. phellos
willow oak
776
743
6
749
96
97
7.92
Q. spp.
oak
66
5
0
5
8
8
0.05
Taxodium distichum
bald cypress
900
734
5
739
82
82
7.83
Ulmus americana
American elm
523
452
28
480
86
92
4.82
Small trees
Clethra alnifolia
sweet pepperbush
145
88
2
90
61
62
0.94
Cynlla racemiflora
titi
20
14
0
14
70
70
0.15
Diospyros virginiana
common persimmon
40
38
2
40
95
100
0.41
Ilex decidua
possumhaw
5
5
0
5
100
100
0.05
1. opaca
American holly
42
24
2
26
57
62
0.26
Magnolia virginiana
sweet bay
196
81
9
90
41
46
0.86
Oxydendron arboreum
sourwood
2
1
0
1
50
50
0.01
Persea palustris
red bay
101
13
1
14
13
14
0.14
Total
11,247
9,380
274
9,654
83
86
Density stems+27.06 ac
416
347
10
357
Shrubs
Cephalanthus occidentalis
buttonbush
42
36
0
36
86
86
11.15
Cornus amomum
24
21
1
22
88
92
6.50
Ilex glabra
ink berry
18
13
3
16
72
89
4.02
Ilex verticillata
winterberry
24
21
0
21
88
88
6.50
Itea virginica
Virginia willow
217
178
1
179
82
82
55.11
Leucothoe racemosa 5
Swamp doghobble
3
1
0
1
33
33
0.31
Lindera benzoin
spicebush
31
6
1
7
19
23
1.86
Rosa palustris
swamp rose
1
0
0
0
0
0
0.00
Vaccinium corymbosum
high bush blueberry
52
45
1
46
87
88
13.93
Viburnum nudum
possumhaw viburnum
6
2
0
2
33
33
0.62
Total
418
323
7
330
77
79
Densit stems+27.06 ac
15
12
0
12
Unknown sp.
492
0
10
10
0
2
Total12,157
9,703
291
9,994
80
82
Total Density (stems=27.06 ac)
449
359
11
369
'The number tagged at baseline reflects the edits/additions in subsequent years as unknowns were identified and species were corrected.
2Survival was considered unsure if the stem appeared dead (brittle, no green, broken, etc.) at the current sampling event and dead if at both the current and
last sampling events the stem was not unquestionably alive
3Total includes alive + unsure.
4Percent survival was calculated as: (Fall/Baseline tagged) X 100.
5Genus changed to Eubotrys
Hell Swamp/Scott Creek Mitigation Site T-58 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 10. Volunteer woody stems in Hell Swamp vegetation monitoring plots during fifth annual survey in 2014. Success criteria differs for volunteer woody stems between wetland restoration (only non -nuisance species with wetland
status can be counted) and Tar -Pamlico riparian buffer restoration (all woody volunteers stems can be counted). (For general information purposes, the number of wetland non -nuisance tree stems are also shown in the buffer plot
section but all stems are counted in the buffer totals.)
WOODY VOLUNTEERS IN 14 0.22 -ACRE BUFFER PLOTS WOODY VOLUNTEERS IN ALL 0.22 -ACRE PLOTS (123 PLOTS)
Scientific name Common name Wetland status Count % of total Scientific name Common name Wetland status Count % of total
Trees
red maple FAC
5
9.26
Fraxinus pennsylvanica
Acer rubrum
red maple
FAC
11
1.04
Clethra alnifolia
sweet pepperbush
FACW
0
0.00
Diospyros virginiana
common persimmon
FAC
1
0.09
Fraxinus pennsylvanica
green ash
FACW
4
0.38
Liquidambar styraciflua
sweetgum
FAC
28
2.65
Morella cerifera
wax myrtle
FAC
328
31.06
Pinus taeda
loblolly pine
FAC
622
58.90
Pyrus calleryana
Callery pear
No status
14
1.33
Quercus michauxii
swamp chestnut oak
FACW
1
0.09
Rhus copallinum
winged sumac
UPL
29
2.75
Salix nigra
black williow
OBL
1
0.09
Taxodium distichum
bald cypress
OBL
5
0.47
Ulmus americana
American elm
FAC
12
1.14
TOTAL RIPARIAN BUFFER
VOLUNTEER SHRUB STEM DENSITY (stems -3.4 ac)
TOTAL TREE STEMS
1,056
TOTAL RIPARIAN BUFFER VOLUNTEER STEM DENSITY (stems-3.4ac)
1,176
TOTAL WETLAND NON -NUISANCE TREE STEMS
352
Shrubs
Baccharis halimifolia
groundsel tree
ibuttonbush
FAC
2,526
99.64
Cephalanthus occidentalis
I OBL I
9
I 0.36
TOTAL SHRUB STEMS
2,535
TOTAL WOODY VOLUNTEER STEMS
3,591
STEM DENSITY (stems-3.08ac)
1,166
WOODY VOLUNTEERS IN 19 0.017 -ACRE BUFFER PLOTS
Scientific name
Common name
Wetland status
Count
% of total
Trees
Acer rubrum
red maple FAC
5
9.26
Fraxinus pennsylvanica
green ash FACW
1
1.85
Liquidambar styraciflua
sweet gum FAC
4
7.41
Morella cerifera
wax myrtle FAC
25
46.30
Pinus taeda
loblolly pine FAC
15
27.78
Quercus michauxii
swamp chestnut oak FACW
1
1.85
Salix nigra/caroliniana
black or coastal plain willow OBL
2
3.70
Ulmus americana
American elm FAC
1
1.85
TOTAL TREE STEMS
54
TOTAL VOLUNTEER WETLAND STEM DENSITY (stems-27.06ac)
TOTAL WETLAND NON -NUISANCE TREE STEMS
30
Shrubs
Baccharis halimifolia
groundsel tree
ibuttonbush
FAC
347
98.02
Cephalanthus occidentalis
OBL
7
1.98
TOTAL SHRUB STEMS
354
TOTAL WOODY VOLUNTEER STEMS
408
STEM DENSITY (stems -.O.32 ac)
1,275
TOTAL RIPARIAN BUFFER VOLUNTEER TREE STEM DENSITY (stems -3.4 ac)
326
TOTAL RIPARIAN BUFFER
VOLUNTEER SHRUB STEM DENSITY (stems -3.4 ac)
850
TOTAL RIPARIAN BUFFER VOLUNTEER STEM DENSITY (stems-3.4ac)
1,176
Trees
Acer rubrum'
Carya aquatica
Chamaecyparis thyoides
Clethra alnifolia
Diospyros virginiana
Fagus grandifolia'
Fraxinus pennsylvanica
Ilex opaca
Juniperus virginiana
Liquidambar styraciflua'
Morella cerifera
Nyssa biflora
Pinus taeda'
Prunus serotina'
Pyrus calleryana'
Quercus lyrata
Q. michauxii
Q. pagoda
Q. phellos
Rhus copallinum'
Salix nigra
Taxodium distichum
Ulmus americana
red maple
water hickory
Atlantic white cedar
sweet pepperbush
common persimmon
American beech
green ash
American holly
eastern red cedar
sweetgum
wax myrtle
swamp tupelo
loblolly pine
black cherry
Callery pear
overcup oak
swamp chesnut oak
cherrvbark oak
winged sumac
black williow
bald cypress
American elm
FAC
OBL
OBL
FACW
FAC
FACU
FACW
FAC
FACU
FAC
FAC
OBL
FAC
FACU
No status
OBL
FACW
FACW
FACW
UPL
OBL
OBL
FAC
422
16
3
3
52
2
18
1
1
975
2,445
3
5,233
2
319
6
2
1
1
388
13
7
22
4.25
0.16
0.03
0.03
0.52
0.02
0.18
0.01
0.01
9.81
24.61
0.03
52.67
0.02
3.21
0.06
0.02
0.01
0.01
3.91
0.13
0.07
0.22
TOTAL TREE STEMS
9,935
TOTAL NON -NUISANCE VOLUNTEER WETLAND TREE STEMS
2,594
DENSITY NON -NUISANCE VOLUNTEER WETLAND TREE STEMS
96
Shrubs
Baccharis halimifolia groundsel tree FAC
13,269
99.87
Cephalanthus occidentalis buttonbush OBL
12
0.09
Cornus amomum silky dogwood FACW
1
0.01
Itea virginica Virginia sweetspire FACW
1
0.01
Vaccinium corymbosum high bush blueberry FACW
3
0.02
TOTAL VOLUNTEER WETLAND SHRUB STEMS
13,286
DENSITY VOLUNTEER WETLAND SHRUB STEMS
491
TOTAL NON -NUISANCE WETLAND STEMS
15,880
TOTAL VOLUNTEER WETLAND STEM DENSITY (stems-27.06ac)
587
'Not used in density calculations, including final totals because of non -wetland status and/or
considered a nuisance by the ACOE
Hell Swamp/Scott Creek Mitigation Site T-59 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016

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Hell Swamp/Scott Creek Mitigation Site T-65 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

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Hell Swamp/Scott Creek Mitigation Site T-66 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

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Hell Swamp/Scott Creek Mitigation Site T-67 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Hell Swamp/Scott Creek Mitigation Site T-68 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016

t �
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Fifth Annual and Summary Report February 2016

t �
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Fifth Annual and Summary Report February 2016

t �
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Fifth Annual and Summary Report February 2016

M
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Fifth Annual and Summary Report February 2016
c
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Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016
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Fifth Annual and Summary Report February 2016

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Fifth Annual and Summary Report February 2016
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Hell Swamp/Scott Creek Mitigation Site T-80 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Hell Swamp/Scott Creek Mitigation Site T-81 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
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Hell Swamp/Scott Creek Mitigation Site T-81 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 14. Summary of flow events recorded during monthly site visits from 2011 to April 2015 at Hell Swamp flow monitoring
stations. Herbaceous colonization of the valleys often prevents easy observation of flow. Since valley slopes do not change
and baseflow continues downslope, flow events inferred to have likely occurred based on observed flow at shallower depths
are shown to the right of the 'T' and represent the total number of events. (Flow events recorded during abnormally high rainfall
were excluded from this table.)
using bankfull calculated from Baker data: > 16.5 in
2using bankfull calculated from Baker data: > 11 in
"2015 includes observations from January through April and the February stream survey
2015'
2
4
4
5/5
2
5/5
3
2
3
2
4
3
2
4
1
1
0
0
1
1
1
1
1
1
2
1
0
0
0
1
3
3
2
2
2
0
4
3
3
0
1
1
Hell Swamp/Scott Creek Mitigation Site T-82 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
Number of events per monitoring year
(observed / inferred + observed)
Station
2011
2012
2013
2014
USC -1B
3/4
1/5
2/5
3/6
USC -2B
6/6
5/7
3/7
5/6
USC -3B'
1
2
1
2
USC -3B
5/7
5/8
4/9
5/9
USC -4B`
1
2
1
2
USC -4B
5/7
6/6
7/7
8/8
USC -5B
3/3
4/5
3/7
1/6
USC -6B
2/6
0/8
3/8
0/7
USC -7B
2/4
2/6
2/7
1/5
USC -8B
1/3
2/7
1/5
0/5
USC -9B
5/6
6/7
5/7
7/7
USC -10B
5/7
5/6
6/7
7/7
USC -11B
2/3
1/4
1/3
1/4
UT1-1B
3/4
5/5
5/6
3/7
UT1-2B
2/3
0/5
1/7
0/6
UT1-3B
2/3
1/5
2/4
1/5
UT14B
1/5
1/6
0/9
0/8
UT2-1B
2/3
0/4
0/4
0/5
UT3-1B
3/4
2/5
2/5
3/4
UT3-2B
2/2
5/5
4/5
2/5
UT3-3B
1/4
3/4
3/4
2/5
UT3-4B
1/1
1/2
1/1
0/1
UT3-5B
0/3
0/5
0/6
1/5
UT3-6B
1/2
2/5
2/6
2/5
UT3-7B
3/3
5/5
3/6
3/6
UT3-8B
2/2
2/4
1/5
1/5
UT3-9B
0/4
0/5
0/7
0/5
UT4-1B
1/1
0/1
0/2
1/1
UT4-2B
0/1
0/3
0/3
1/3
UT6-3B
2/4
1/9
1/10
2/8
UT64B
2/2
3/3
2/4
3/4
UT6-5B
2/2
3/3
2/5
4/5
UT6-6B
2/2
1/3
1/6
3/5
UT7-1B
2/2
1/4
2/6
2/5
UT7-2B
2/2
0/3
1/4
1/4
UT7-3B
1/1
0/3
0/3
1/3
UT8-1B
4/4
6/9
6/7
7/8
UT8-2B
3/4
5/5
5/7
3/6
UT8-3B
4/6
5/8
5/6
4/6
UT8-4B
1/5
1/5
0/6
1/6
UT8-5B
4/4
4/5
3/6
2/6
UT8-6B
3/5
4/5
4/6
3/6
using bankfull calculated from Baker data: > 16.5 in
2using bankfull calculated from Baker data: > 11 in
"2015 includes observations from January through April and the February stream survey
2015'
2
4
4
5/5
2
5/5
3
2
3
2
4
3
2
4
1
1
0
0
1
1
1
1
1
1
2
1
0
0
0
1
3
3
2
2
2
0
4
3
3
0
1
1
Hell Swamp/Scott Creek Mitigation Site T-82 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016

Table 15. Numbers and species of woody stems counted in four Tar -Pamlico riparian buffer
plots (25 x 100 feet each) at the edge of the unconstructed lower UT6 stream valley flow
way. An "*' indicates a planted species and an "**" indicates a species not ordered but
included in the nursery delivery in error and planted.
Plot A Plot B Plot C Plot D
Hell Swamp/Scott Creek Mitigation Site T-83 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016
Species
American elm*
Ulmus americana
1
Bald cypress*
Taxodium distichum
2
2
Callery pear**
Pyrus calleryana
1
Cherrybark oak*
Quercus paegoda
2
1
Green ash*
Fraxinus pennsylvanica
1
Groundsel tree
Baccharis halimifolia
170
82
43
52
Loblolly pine
Pinus taeda
79
8
8
35
Oak sp.*
Q. sp.
1
Overcup oak*
Q. lyrata
3
1
Red bay*
Persea palustris
4
Red cedar
Juniperus virginiana
1
Red maple
Acer rubrum
1
Wax myrtle
Morella cerifera
20
9
32
28
Willow oak*
Q. phellos
4
Winged sumac
Rhus copallinum
1
TOTAL
274
110
87
119
Number of species/plot
5
8
8
6
Number of planted species/plot
1
5
4
2
Hell Swamp/Scott Creek Mitigation Site T-83 PCS Phosphate Company, Inc.
Fifth Annual and Summary Report February 2016