Table
2.9 Past Wet Season Data at EPD’s Monitoring Stations SM5, SM19 and MM5
|
Year |
1998-2000 |
1998-2003 |
|||
|
Stations |
SM5 (Lamma) |
SM5 (Lamma) |
SM19 ( |
MM5 (Ping Chau) |
|
|
DO at S&M*, mg/L |
Average |
6.8 |
7.0 |
6.2 |
6.1 |
|
Maximum |
10.6 |
11.9 |
8.0 |
8.0 |
|
|
Minimum |
4.5 |
4.2 |
4.6 |
4.0 |
|
|
5%-ile |
4.7 |
4.7 |
5.0 |
4.8 |
|
|
1%-ile |
4.5 |
4.3 |
4.7 |
4.2 |
|
|
DO at Bottom, mg/L |
Average |
5.8 |
5.9 |
4.9 |
5.0 |
|
Maximum |
7.0 |
9.1 |
7.4 |
7.9 |
|
|
Minimum |
3.5 |
3.5 |
2.8 |
1.6 |
|
|
5%-ile |
4.1 |
4.2 |
3.3 |
2.9 |
|
|
1%-ile |
3.6 |
3.7 |
2.8 |
2.0 |
|
|
Turbidity, NTU |
Average |
7.8 |
8.3 |
8.4 |
6.3 |
|
Maximum |
18.7 |
18.7 |
23.6 |
13.2 |
|
|
Minimum |
1.2 |
1.2 |
1.1 |
2.6 |
|
|
95%-ile |
17.2 |
15.1 |
14.0 |
11.2 |
|
|
99%-ile |
18.4 |
18.0 |
21.9 |
13.0 |
|
|
SS, mg/L |
Average |
4.9 |
5.8 |
4.1 |
2.3 |
|
Maximum |
10.9 |
20.7 |
7.3 |
7.9 |
|
|
Minimum |
0.8 |
0.8 |
1.1 |
0.5 |
|
|
95%-ile |
10.2 |
12.2 |
6.7 |
5.7 |
|
|
99%-ile |
10.7 |
18.6 |
7.2 |
7.6 |
|
* Surface and middle depths