APPENDIX H
The Summary of Exceedance Record
Appendix H Exceedance Report
Exceedance Report for Water Quality
1. Summary of exceedances of the Action Level
Environmental
Monitoring
Parameter
No. of non-project
related
exceedances
Total No. of
non-project
related
exceedances
AL LL
Water Quality
SS 2 2 2
DO 2 2 2
Turbidity 4 4 4
2. Detail information of exceedances of the Action Level and Limit Level
Date
Parameter of
Exceedances
Monitoring Location
Sluice Gate 7 Sluice Gate 19
15 June 2023
Suspended Solids
130, 170 Not Applicable
17 June 2023
Suspended Solids
160, 160 Not Applicable
17 June 2023
Turbidity 211, 213 Not Applicable
21 June 2023
Turbidity 73.3, 73.4 Not Applicable
28 June 2023
Turbidity 52.7, 52.8 Not Applicable
30 June 2023
Turbidity 79.6, 79.7 Not Applicable
30 June 2023
Dissolved Oxygen 2.13, 2.15 2.21, 2.19
3. Site activity during the date with exceedances:
Date Site Activity
15 June 2023 1. TH2 – Formation works to access road.
2. TH2 – Setting out to footing.
3. TH3 – Formation works to access road.
4.
TH3
–
fixing
17 June 2023 1. TH2 – Formation works to access road.
2.
TH3
–
Formation works to access road.
21 June 2023
1. TH2 – Excavation to footing.
2.
TH2 – Formation works to access road.
3.
TH2
–
Cleaning to access road.
28 June 2023
1. TH2 – Compaction to footing.
2.
TH3
–
Setting out to footing.
30 June 2023
1. TH2 – Steel Reinforcement to footing.
2.
TH2
–
Formwork to footing.
As the site work carried out on the aforesaid dates did not involve any wet trade works, the exceedances
were not considered to be related to the Project. The exceedances may be due to external factors which
were not project-related.