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
¨C Sha Lo Wan AMS4
¨C San Tau |
While
the highest dust
impact was expected |
24-hr
TSP |
Once
/ 6 days |
-- |
||
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
¨C Sha Lo Wan NMS4
¨C San Tau |
Daytime
on normal weekdays
(0700-1900
hrs) |
Water
Quality |
¡¤
Temperature(¡ãC) ¡¤
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 ¡À 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 |
-- |