Table 2.5 Dissolved Oxygen (mg/l) data for the 1998-99 monitoring
period at the Lower Cape Fear River Program stations.
North Carolina state standard is 5 mg/l (4 mg/l for swampwater).
|
DWQ# |
72 |
73 |
75 |
86 |
87 |
88 |
89 |
90 |
91 |
93 |
|
DWQ# |
59 |
74 |
61 |
92 |
|
71 |
85 |
70 |
84 |
|
month |
NAV |
HB |
BRR |
M61 |
M54 |
M42 |
M35 |
M23 |
M18 |
SPD |
|
month |
NC11 |
LVC |
AC |
DP |
BBT |
IC |
NCF6 |
B210 |
NCF117 |
|
JUN |
4.9 |
4.9 |
5.0 |
5.1 |
5.6 |
6.8 |
7.0 |
7.6 |
7.2 |
7.2 |
|
JUN |
7.0 |
6.5 |
6.5 |
5.5 |
5.4 |
5.2 |
5.2 |
5.1 |
4.5 |
|
JUL |
3.7 |
3.9 |
4.3 |
5.1 |
5.7 |
6.2 |
7.0 |
7.1 |
6.9 |
5.3 |
|
JUL |
6.3 |
6.8 |
7.4 |
4.7 |
4.9 |
3.9 |
5.7 |
4.5 |
4.0 |
|
AUG |
5.2 |
5.4 |
4.8 |
5.3 |
5.2 |
5.8 |
5.9 |
6.1 |
6.2 |
6.1 |
|
AUG |
6.4 |
7.5 |
6.0 |
6.5 |
4.7 |
4.5 |
5.0 |
5.3 |
5.9 |
|
SEP |
0.3 |
0.5 |
0.4 |
0.2 |
0.6 |
1.3 |
1.4 |
4.1 |
4.2 |
4.3 |
|
SEP |
2.8 |
0.3 |
2.2 |
0.4 |
0.3 |
0.3 |
0.3 |
1.2 |
0.0 |
|
OCT |
3.6 |
4.0 |
4.9 |
4.6 |
5.6 |
6.3 |
6.3 |
6.5 |
6.6 |
5.3 |
|
OCT |
5.8 |
5.9 |
6.8 |
4.4 |
4.5 |
3.4 |
4.3 |
4.4 |
2.9 |
|
NOV |
6.7 |
7.0 |
6.8 |
7.8 |
7.9 |
8.1 |
8.2 |
7.9 |
7.8 |
7.0 |
|
NOV |
8.0 |
7.8 |
7.4 |
5.6 |
5.5 |
5.3 |
6.5 |
7.0 |
6.6 |
|
DEC |
7.8 |
8.1 |
7.5 |
8.0 |
6.9 |
8.3 |
8.4 |
8.4 |
7.9 |
7.2 |
|
DEC |
9.5 |
9.3 |
8.7 |
8.1 |
7.6 |
7.7 |
8.2 |
6.9 |
6.2 |
|
JAN |
10.4 |
10.5 |
10.6 |
9.8 |
10.0 |
10.4 |
10.4 |
10.8 |
10.6 |
10.7 |
|
JAN |
10.7 |
8.5 |
11.1 |
11.1 |
11.2 |
10.9 |
9.5 |
11.5 |
9.9 |
|
FEB |
9.0 |
9.0 |
8.6 |
8.4 |
8.2 |
8.6 |
8.9 |
9.2 |
8.8 |
9.0 |
|
FEB |
10.7 |
7.5 |
9.9 |
9.6 |
7.8 |
8.1 |
7.3 |
8.7 |
7.0 |
|
MAR |
10.1 |
10.0 |
9.8 |
9.6 |
9.7 |
9.6 |
9.4 |
9.0 |
8.7 |
9.2 |
|
MAR |
11.8 |
11.6 |
11.7 |
10.4 |
10.3 |
10.5 |
9.8 |
7.5 |
no data |
|
APR |
7.2 |
7.3 |
7.3 |
7.0 |
7.5 |
8.0 |
8.2 |
8.5 |
8.4 |
10.7 |
|
APR |
8.3 |
7.0 |
7.1 |
7.0 |
6.9 |
6.4 |
6.4 |
5.8 |
5.9 |
|
MAY |
6.4 |
6.2 |
6.3 |
5.9 |
6.9 |
6.5 |
6.5 |
7.0 |
7.3 |
5.9 |
|
MAY |
7.7 |
5.7 |
6.9 |
6.3 |
5.5 |
5.9 |
5.1 |
5.4 |
4.2 |
|
mean |
6.3 |
6.4 |
6.4 |
6.4 |
6.7 |
7.2 |
7.3 |
7.7 |
7.6 |
7.3 |
|
mean |
7.9 |
7.0 |
7.6 |
6.6 |
6.2 |
6.0 |
6.1 |
6.1 |
5.2 |
|
std dev |
2.8 |
2.7 |
2.6 |
2.5 |
2.4 |
2.2 |
2.2 |
1.6 |
1.5 |
2.0 |
|
std dev |
2.4 |
2.5 |
2.4 |
2.8 |
2.7 |
2.9 |
2.4 |
2.4 |
2.4 |
|
max |
10.4 |
10.5 |
10.6 |
9.8 |
10.0 |
10.4 |
10.4 |
10.8 |
10.6 |
10.7 |
|
max |
11.8 |
11.6 |
11.7 |
11.1 |
11.2 |
10.9 |
9.8 |
11.5 |
9.9 |
|
min |
0.3 |
0.5 |
0.4 |
0.2 |
0.6 |
1.3 |
1.4 |
4.1 |
4.2 |
4.3 |
|
min |
2.8 |
0.3 |
2.2 |
0.4 |
0.3 |
0.3 |
0.3 |
1.2 |
0.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DWQ# |
69 |
79 |
78 |
94 |
77 |
80 |
81 |
83 |
82 |
|
|
DWQ# |
65 |
64 |
63 |
62 |
66 |
67 |
68 |
|
All Stations |
|
month |
ANC |
SAR |
GS |
NC403 |
PB |
LRC |
ROC |
BC117 |
BCRR |
|
|
month |
6RC |
LCO |
GCO |
SR |
BRN |
HAM |
COL |
|
Mean |
|
JUN |
6.6 |
5.2 |
0.4 |
0.8 |
2.2 |
10.6 |
6.1 |
4.7 |
4.3 |
|
|
JUN |
6.5 |
5.7 |
4.6 |
3.7 |
7.9 |
6.8 |
5.9 |
|
5.5 |
|
JUL |
1.9 |
3.6 |
3.0 |
0.6 |
1.0 |
9.7 |
6.1 |
7.1 |
4.6 |
|
|
JUL |
6.6 |
4.2 |
3.6 |
2.2 |
5.5 |
2.5 |
4.9 |
|
4.9 |
|
AUG |
2.4 |
3.9 |
4.9 |
1.1 |
2.9 |
10.7 |
3.9 |
3.9 |
4.5 |
|
|
AUG |
5.0 |
5.5 |
4.7 |
0.8 |
5.9 |
5.3 |
5.1 |
|
5.1 |
|
SEP |
0.3 |
0.3 |
0.3 |
1.3 |
1.4 |
6.3 |
0.6 |
4.7 |
6.5 |
|
|
SEP |
2.2 |
4.0 |
1.0 |
1.0 |
5.4 |
4.2 |
1.1 |
|
1.9 |
|
OCT |
5.0 |
5.8 |
0.0 |
0.4 |
0.6 |
10.0 |
5.1 |
4.8 |
2.4 |
|
|
OCT |
6.4 |
6.3 |
5.1 |
0.0 |
7.4 |
5.1 |
4.0 |
|
4.7 |
|
NOV |
6.9 |
8.0 |
3.2 |
4.6 |
3.7 |
10.8 |
7.8 |
8.4 |
3.1 |
|
|
NOV |
9.3 |
9 |
8.3 |
2.2 |
9.4 |
8.3 |
6.5 |
|
7.0 |
|
DEC |
7.5 |
8.0 |
4.5 |
4.0 |
6.2 |
11.6 |
8.7 |
7.5 |
2.8 |
|
|
DEC |
9.5 |
9.6 |
9.1 |
0.3 |
10 |
8.3 |
7.3 |
|
7.6 |
|
JAN |
10.0 |
10.6 |
12.6 |
10.2 |
9.4 |
11.4 |
10.1 |
10.3 |
10.0 |
|
|
JAN |
9.0 |
9.0 |
9.0 |
9.0 |
9.7 |
9.0 |
8.8 |
|
10.2 |
|
FEB |
8.0 |
9.1 |
8.9 |
6.9 |
7.7 |
9.9 |
9.8 |
8.7 |
9.0 |
|
|
FEB |
8.5 |
9.0 |
9.2 |
8.4 |
10.8 |
10.4 |
8.5 |
|
8.8 |
|
MAR |
8.9 |
8.5 |
12.3 |
7.2 |
11.1 |
10.7 |
9.6 |
11.2 |
11.1 |
|
|
MAR |
10.2 |
10.4 |
8.9 |
8.3 |
10.2 |
10.7 |
8.6 |
|
9.9 |
|
APR |
7.5 |
6.1 |
7.1 |
4.1 |
4.2 |
9.5 |
7.5 |
6.5 |
6.2 |
|
|
APR |
7.0 |
6.6 |
5.0 |
1.8 |
7.9 |
6.0 |
5.9 |
|
6.9 |
|
MAY |
6.2 |
5.9 |
4.6 |
1.3 |
12.1 |
9.6 |
6.8 |
7.6 |
7.4 |
|
|
MAY |
6.9 |
6.4 |
4.8 |
2.3 |
7.9 |
6.9 |
5.4 |
|
6.3 |
|
mean |
5.9 |
6.3 |
5.2 |
3.5 |
5.2 |
10.1 |
6.8 |
7.1 |
6.0 |
|
|
mean |
7.3 |
7.1 |
6.1 |
3.3 |
8.2 |
7.0 |
6.0 |
|
6.5 |
|
std dev |
2.8 |
2.7 |
4.1 |
3.1 |
3.9 |
1.3 |
2.6 |
2.2 |
2.8 |
|
|
std dev |
2.1 |
2.1 |
2.6 |
3.2 |
1.8 |
2.4 |
2.1 |
|
2.8 |
|
max |
10.0 |
10.6 |
12.6 |
10.2 |
12.1 |
11.6 |
10.1 |
11.2 |
11.1 |
|
|
max |
10.2 |
10.4 |
9.2 |
9.0 |
10.8 |
10.7 |
8.8 |
|
12.6 |
|
min |
0.3 |
0.3 |
0.0 |
0.4 |
0.6 |
6.3 |
0.6 |
3.9 |
2.4 |
|
|
min |
2.2 |
4.0 |
1.0 |
0.0 |
5.4 |
2.5 |
1.1 |
|
0.0 |