Table 3.1 Summary
of Impact EM&A Requirements
|
Type of Monitoring |
Parameter |
Frequency |
Location |
Remarks |
|
Air Quality |
1-hr TSP |
Three times / 6 days |
AMS1 – Sha Lo Wan AMS4 – San Tau |
While the highest dust impact was expected |
|
24-hr TSP |
Once / 6 days |
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||
|
Noise |
L10(30 min.) dB(A) L90(30 min.) dB(A) Leq(30 min.) dB(A) (as
six consecutive Leq, 5min
readings) |
Once per week |
NMS1 – Sha Lo Wan NMS4 – San Tau |
Daytime on normal weekdays (0700-1900 hrs) |
|
Water Quality |
·
Temperature(°C) ·
pH(pH
unit) ·
turbidity
(NTU) ·
water
depth (m) ·
salinity
(ppt) ·
dissolved
oxygen (DO) (mg/L and % of saturation) ·
suspended
solids (SS) (mg/L) |
Impact monitoring: 3 days per week, at mid-flood and mid-ebb tides
(within ± 1.75 hour of the predicted time) during the construction period of
the Contract |
IS1, IS2, IS3 IS4, CS1, CS2, SR1, SR2, SR3, SR6, ST1, ST2, ST3, SRA |
·
3 water depths: 1m below sea surface, mid-depth
and 1m above sea bed. ·
If
the water depth is less than 3m, mid-depth sampling only. ·
If
water depth less than 6m, mid-depth may be omitted. |
|
Dolphin |
Line-transect Methods |
Twice per month |
West Lantau |
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