Table 8.6b Comparison of Baseline, Impact and Post-construction Water Quality Monitoring Results
(Dissolved Oxygen (Bottom), Mid Ebb Tide)
Station(s) |
Baseline (October to November 2011) |
Impact (Feb 2013 to Oct 2018) |
Post-construction (Oct to Nov 2018) |
|||
Dissolved Oxygen (Bottom), mg/L |
||||||
Min |
Max |
Min |
Max |
Min |
Max |
|
CS1 |
5.4 |
9.3 |
1.3 |
10 |
6.2 |
6.7 |
CS2 |
3.9 |
7.2 |
1.7 |
8.8 |
6.3 |
7.0 |
IS1 |
5.4 |
9.0 |
1.6 |
9.9 |
6.4 |
7.0 |
IS2 |
5.4 |
8.9 |
2.0 |
10.3 |
6.1 |
7.1 |
IS3 |
5.8 |
8.7 |
2.8 |
10.1 |
6.4 |
7.2 |
IS4 |
3.7 |
7.2 |
2.1 |
10.1 |
-- |
-- |
SR1 |
6.7 |
6.7 |
5.0 |
6.7 |
-- |
-- |
SR2 |
- |
- |
-- |
-- |
-- |
-- |
SR3 |
- |
- |
7.3 |
7.3 |
6.4 |
7.2 |
SR6 |
3.1 |
7.4 |
2.6 |
10.1 |
5.9 |
6.9 |
SRA |
3.9 |
7.7 |
3.9 |
10.9 |
6.4 |
6.8 |
ST1 |
5.4 |
8.6 |
3.5 |
9.8 |
6.3 |
6.9 |
ST2 |
3.5 |
7.2 |
3.5 |
9.7 |
6.2 |
6.8 |
ST3 |
5.4 |
9.1 |
3.5 |
10.0 |
6.2 |
6.7 |
Remark: " - " means the water depth of station less than
3m and therefore only the mid-depth was monitored.