Appendix
A - Action and Limit Levels
Table A-1 Action
and Limit Levels for 1-Hour TSP
|
Location |
Action Level, μg/m3 |
Limit Level, μg/m3 |
|
AQ1 |
345 |
500 |
|
AQ2 |
321 |
Table A-2 Action
and Limit Levels for 24-Hour TSP
|
Location |
Action Level, μg/m3 |
Limit Level, μg/m3 |
|
AQ1 |
201 |
260 |
|
AQ3 |
156 |
Table A-3 Action
and Limit Levels for
Construction Noise
|
Time
Period |
Action
Level |
Limit
Level |
|
0700-1900 hrs on normal weekdays |
When one documented
complaint is received |
75* dB(A) |
|
0700-2300 hrs on holidays; and 1900-2300
hrs on all other days |
60/65/70** dB(A) |
|
|
2300-0700 hrs of next day |
45/50/55** dB(A) |
(*) reduce to 70 dB(A) for schools
and 65 dB(A) during school examination periods.
(**) to be selected based on Area
Sensitivity Rating.
Table A-4 Action
and Limit Levels for Water
Quality
|
Parameter |
Action |
Limit |
|
|
DO, mg/L |
Surface and Middle |
6.3 |
6.2 |
|
Bottom |
6.0 |
5.8 |
|
|
SS, mg/L |
15.7 or 120% of upstream control station’s SS at the
same tide of the same day |
16.4 or 130% of SS readings at the upstream control
station at the same tide of same day and specific sensitive receiver water
quality requirements |
|
|
Turbidity, NTU |
10.2 or 120% of upstream control station’s turbidity
at the same tide of the same day |
11.1 or 130% of
turbidity at the upstream control station at the same tide of same day |
|