HomeMy WebLinkAbout20080868 Ver 2_Appendix F - Metals_20180629APPENDIX F
2017 Sediment and Water Column Metals
(Data only on CD)
Table F-1. Minimum and maximum 2017 values for each detected metal and the creek sediment in which it was detected. Control creeks are indicated
with an asterisk (*). Neither silver (Ag) nor molybdenum (Mo) was detected in any creek.
Metal
Al (%)
As (pg/g)
Cd (pg/g)
Cr (pg/g)
Cu (pg/g)
Fe (%)
Se (pg/g)
Zn (pg/g)
Se
(pg/g)
Min Max
Min Max
Min Max
Min Max
Min Max
Min Max
Min Max
Min Max
Range
0.04 3.48
0.52 7.10
0.59 0.97
0.54 37.80
0.25 20.2
0.03 2.41
0.32 3.60
1.00 86.30
28.60
12.90
2.41
<8.80
3.50
86.30
Little*
2.70
<0.55
Creek
HC MC*
D19* D11
DK JC
HC MC*
HC MC*
HC JC
D19*
HC JC
2.19
<0.58
6.20
<0.58
25.70
9.40
2.25
P11;
2.90
HC = Huddles Cut MC* = Muddy D19* = DCUT19 D11 = DCUT11 DK = Drinkwater JC = Jacks
Table F-2. Values of sediment metals detected in 2017 in the PCS creeks study. Creeks are listed with most
upstream creek on South Creek first (Jacks Creek) and proceed downstream by creek to Hickory Point and
Muddy Creek, then upriver along the Pamlico to the most western creeks. Control creeks are indicated with an
asterisk (*) and an less than symbol (<) indicates the reporting limit for undetected metals in a creek sample.
F-1
Al %
( )
Ag
(pg/g)
As
(pg/g)
Cd
(pg/g)
Cr
(pg/g)
Cu
(Pg/g)
Fe %
( )
Mo
(pg/g)
Se
(pg/g)
Zn
(pg/g)
Creek
Jacks
2.83
<0.86
6.10
0.97
28.60
12.90
2.41
<8.80
3.50
86.30
Little*
2.70
<0.55
6.10
0.94
35.90
13.30
1.97
<7.20
3.40
75.00
Jacobs
2.19
<0.58
6.20
<0.58
25.70
9.40
2.25
<7.70
2.90
59.60
PA2*
2.51
<0.58
6.00
0.62
33.30
10.50
2.10
<7.40
3.10
65.70
Drinkwater
2.09
<0.47
6.70
0.59
27.40
9.40
2.05
<7.10
2.80
56.00
Long*
1.85
<0.44
5.80
0.61
27.30
9.20
1.71
<4.80
2.70
55.60
Tooley
2.27
<0.56
6.40
0.96
30.20
9.50
2.07
<5.80
2.80
68.30
Muddy*
3.48
<0.71
5.80
0.84
37.80
20.20
2.28
<5.90
3.20
86.00
Huddles Cut
0.04
<0.24
<0.24
<0.24
0.54
0.25
0.03
<1.90
<0.24
1.00
Porter
2.42
<0.57
6.20
0.81
36.80
14.30
2.25
<5.20
3.60
49.00
DCUT11
2.40
<1.60
7.10
<1.60
20.30
13.00
2.35
<17.00
3.60
68.70
DCUT19*
0.13
<0.24
0.52
<0.24
2.20
0.96
0.20
<2.70
0.32
5.60
Duck*
1.58
<0.68
3.80
<0.68
18.20
12.40
1.99
<6.80
2.50
44.60
All mean
Control* mean
Other mean
2.04
2.04
2.03
NA
NA
NA
5.56
4.67
6.45
0.79
0.75
0.83
24.94
25.78
24.22
10.41
11.09
9.82
1.82
1.71
1.92
NA
NA
NA
2.87
2.54
3.20
55.49
55.42
55.56
F-1
Table F-3. Values for physical parameters of 2017 sediment samples from PCS study creeks.
Control creeks are shown with an asterisk (*).
Creek
Bulk
Density
(g/cm3)
Water Water
Content Content o a
(/a byweight) (/o by Volume)
Dry Sediment
Density (g/cm3 )
% Soil -solid
as Dry
Weight
Porosity
Total
Organic
Carbon
(9/kg)
Jacks Creek
0.32
67.98
86.00
0.0032
24.20
0.88
92.20
Little Creek*
0.38
69.00
85.00
0.0038
29.20
0.86
69.70
Jacobs Creek
0.40
67.16
83.00
0.0041
29.30
0.85
71.70
PA2*
0.40
67.30
84.00
0.0041
29.10
0.85
53.70
Drinkwater Creek
0.46
63.63
81.00
0.0047
33.30
0.83
59.20
Long Creek*
0.52
60.43
8.00
0.0052
35.20
0.80
44.40
Tooley Creek
0.49
61.73
80.00
0.0050
36.50
0.81
49.10
Muddy Creek*
0.37
70.02
86.00
0.0037
28.30
0.86
52.80
Huddles Cut
1.40
16.09
27.00
0.0141
82.00
0.47
<1.2
Porter Creek
0.38
68.99
85.00
0.0038
32.50
0.86
46.60
DCUT11
0.14
86.69
94.00
0.0014
12.70
0.95
209.00
DCUT19*
1.26
27.43
48.00
0.0175
71.80
0.52
11.20
Duck Creek*
0.38
68.43
84.00
0.0039
32.30
0.86
64.40
Mean all (SD) 0.54 (0.38) 60.54 (19.41) 70.58 (27.46) 0.006 (0.005) 36.65 (18.94) 0.80 (0.14) 68.67 (48.24)
Mean control (SD) 0.55 (0.35) 60.44 (16.52) 65.83 (31.93) 0.006 (0.005) 36.91 (15.58) 0.79 (0.14) 48.97 (26.58)
Mean other (SD) 0.51 (0.41) 61.75 (21.72) 76.57 (22.34) 0.005 (0.004) 36.33 (23.87) 0.81 (0.16) 87.97 (61.61)
Table F-4. Values of total recoverable metals in the 2017 PCS study creek water samples. Creeks
are listed with most upstream creek on South Creek first (Jacks Creek) and proceed downstream by
creek to Hickory Point and Muddy Creek, then upriver along the Pamlico to the most western creeks.
Entries with < were undetected and value shown is LOQ/RL. Control creeks are indicated with an
asterisk (*).
Recoverable metals 2017 water column
Se
2n
Creek
Ag (Ng/L)
As (Ng/L)
Cd (Ng/L)
Cr (Ng/L)
Cu (Ng/L)
Fe (Ng/L)
Mo (Ng/L)
(N9/L)
(N9/L)
Jacks Creek
<2
<2
<2
<2
<2
<200
<2
<2
<20
Little Creek*
<2
<2
<2
<2
<2
<200
<2
<2
<20
Jacobs Creek
<2
<2
<2
<2
<2
<200
<2
<2
<20
PA2*
<2
<2
<2
<2
<2
<200
<2
<2
<20
Drinkwater Creek
<2
<2
<2
<2
<2
<200
<2
<2
<20
Long Creek*
<2
<2
<2
<2
<2
<200
<2
<2
<20
Tooley Creek
<2
<2
<2
<2
<2
<200
<2
<2
<20
Muddy Creek*
<2
<2
<2
<2
<2
<200
<2
<2
<20
Huddles Cut
<2
2.8
<2
<2
<2
232
<2
<2
<20
Porter Creek
<2
<2
<2
<2
<2
<200
<2
<2
<20
DCUT11
<2
<2
<2
<2
<2
<200
<2
<2
<20
DCUT19*
<2
<2
<2
<2
<2
<200
<2
<2
<20
Duck Creek*
<2
<2
<2
<2
<2
469
<2
<2
<20