11.
FUTURE KEY
ISSUES
11.1
Construction Programme for the Next Three Month
·
Demolition
of FST no. 5-8, Settled Sewage Overflow Chamber, Sludge Holding Tanks no. 3
& 4 (below ground), Return Activated Sludge Screw Pump Pumping station, Air
Floatation Thickener and Auxiliary Pumping Station;
·
Sheet Pile
installation, pipe Laying and construction of RC chamber at Zone 2B and
subsequence diversion work;
·
Sheet
pile installation, excavation work and RC structure at IW & PST;
·
Piling
work at IW & PST;
·
Drilling
and installation of dewatering well and observation well at IW & PST;
·
ELS
works at IW & PST;
·
Sheet
pile installation and construction of RC structure at Zone 3 (Location D -Temp.
Primary Sludge Pumping Station & Location E – Temp. Thickened Sludge
Station);
·
Pipe
laying for Zone diversion;
·
Installation of sheet pile or pipe pile wall for demolition
of Aeration Tank no. 5-8 at AGS;
·
Construction
of CLP Substation;
·
Demolition
of PST no. 4;
·
Cone
Penetration Test at Sludge Thickening Building;
·
Ground
investigation at SDT & STB; and
·
Construction
of PST structure.
11.2
Key Issues for the Coming
Month
11.2.1
Potential
environmental impacts arising from the above construction activities are mainly
associated with construction dust, construction noise, waste management,
ecology, land contamination and landscape and visual impact issues.
11.3
Monitoring Schedules for the Next Three Month
11.3.1
The tentative
schedule for environmental monitoring in the coming three month is provided in Appendix
E.