9.1
Major
site activities undertaken for the coming months include:
|
Portion A |
- |
Construction of Cycle Track,
Installation of Bicycle Parapet |
|
Portion B |
- |
Construction of Subway A,
Construction of Cycle Track |
|
Portion C |
- |
Construction of Retaining Wall
RW 11A, 11B, 11C, 12, 13 & 14, 15A Resting Station R7, Construction
of Drainage Works |
|
Portion D |
- |
Construction of Drainage Pipe,
Construction of RW 15B, 15C,15D, 15E, 16A Stream Decking D1, D2 & D3,
Realignment of San Tam Road |
|
Portion E |
- |
Construction of Retaining Wall
RW D2, D4, D5, D7, D17, D18, D19, D20, D21, D22, D23, D24& D25,D26,
D26ABC Construction of Drainage Pipe, Construction of Boundary Wall,
Realignment of Mai Po Lung Road |
|
Portion F |
- |
Construction of Drainage Pipe,
Construction of Retaining wall RW 43, Soil Treatment for RAP, Construction of
Boundary Wall |
|
Portion G |
- |
Remaining Works for Box Culvert
C |
|
Portion H |
- |
Construction of Retaining Wall
RW 45A, 49, DW1 & DW2 Construction of Drainage |
|
Portion I |
- |
Construction of Subway D |
|
Portion J |
- |
Construction of RW 46, 47, 48,
24, 25, 26, Construction of Stream Decking D8 |
|
Portion K |
- |
Construction of Footpath and
Cycle Track, Installation of Bicycle Parapet |
|
Portion M |
- |
Construction of RW 30A, 30B,
Construction of Bridge E |
|
Shui Fu Road |
- |
Decontamination of soil |
9.2
Key
environmental issues in the coming months include:
·
Wastewater
and runoff generation on-site;
·
Regular
removal of silt, mud and sand along u-channels and inside sedimentation tanks;
·
Review
and implementation of temporary drainage system for the surface runoff;
·
Noise
from operation of the equipment, especially for excavation works and machinery
on-site;
·
Dust
generation from stockpiles of dusty materials, exposed site area, excavation
works and other dust-generating activities;
·
Water
spraying for dust generating activities and on haul road;
·
Proper
storage of construction materials on-site;
·
Storage
of chemicals/fuel and chemical waste/waste oil on-site;
·
Accumulation
of general refuse and construction waste on-site; and
·
Protection
measures for retained trees.
9.3
The
tentative program of major site activities and the impact prediction and
control measures for the coming months, i.e. January to February 2019, are
summarized as follows:
|
Construction Works |
Major Impact Prediction |
Control Measures |
|
As
mentioned in Section 9.1 |
Air
quality impact (dust) |
(a)
Frequent watering
of haul road and unpaved/exposed areas; (b)
Frequent watering
or covering stockpiles with tarpaulin or similar means; and (c) Watering of any earth moving activities. |
|
Water quality
impact (surface run-off) |
(d)
Diversion of the
collected effluent to de-silting facilities for treatment in compliance with
valid Discharge License prior to discharge to public storm water drains; (e)
Provision of
adequate de-silting facilities for treating surface run-off and other
collected effluents prior to discharge; (f)
Provision of
perimeter protection such as sealing of hoarding footings to avoid run-off
from entering the existing storm water drainage system via public road; and (g) Provision of measures to prevent discharge into the stream. |
|
|
Noise
impact |
(h)
Scheduling of noisy
construction activities if necessary to avoid persistent noisy operation; (i)
Controlling the
number of plants use on site; (j)
Regular maintenance
of machines (k)
Use of quiet PMEs
on-site; and (l) Use of acoustic barriers and noise enclosure if necessary. |
|
|
Landscape
and Visual |
(m) Proper setup of precautionary area for retained trees. |
9.4 The tentative environmental monitoring schedules for the next month are shown in Appendix D.