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 ¡V Sha Lo Wan AMS4 ¡V 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 ¡V Sha Lo Wan NMS4 ¡V San Tau |
Daytime on normal weekdays (0700-1900 hrs) |
Water Quality |
¡P
Temperature(¢XC) ¡P
pH(pH unit) ¡P
turbidity (NTU) ¡P
water depth (m) ¡P
salinity (ppt) ¡P
dissolved oxygen (DO) (mg/L and % of
saturation) ¡P
suspended solids (SS) (mg/L) |
Impact monitoring: 3 days
per week, at mid-flood and mid-ebb tides (within ¡Ó 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 |
¡P 3 water depths: 1m below sea surface, mid-depth
and 1m above sea bed. ¡P If the
water depth is less than 3m, mid-depth sampling only. ¡P If
water depth less than 6m, mid-depth may be omitted. |
Dolphin
|
Line-transect
Methods |
Twice per month |
West Lantau |
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