Appendix
C - Implementation Schedule of Environmental Mitigation Measures (EMIS)
Air Quality - Schedule of Recommended
Mitigation Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Air Quality during Construction |
Restricting
heights from which materials are dropped, as far as practicable to
minimize the fugitive dust arising from unloading/loading. |
During construction |
# |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
All stockpiles of excavated materials or spoil of more than 50m3 shall be enclosed, covered or dampened during dry or windy conditions. |
# |
# |
V |
V |
V |
@ |
@ |
V |
V |
V |
V |
@ |
||
Effective water
sprays shall be used to control potential dust emission sources such as unpaved haul roads and active construction areas. |
# |
@ |
V |
V |
V |
@ |
@ |
V |
V |
V |
V |
+ |
||
All spraying of materials and surfaces shall avoid excessive water
usage. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Vehicles that have the potential to create dust while transporting materials shall be
covered, with the cover properly
secured and extended over the edges of the
side and tail boards. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Materials shall be
dampened, if necessary, before transportation. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Travelling speeds
shall be controlled to reduce traffic induced dust dispersion and re-suspension within the site from the
operating haul trucks. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Vehicle washing facilities shall be provided to minimize the quantity of material deposited on public roads. |
# |
V |
V |
V |
V |
@ |
V |
V |
V |
V |
@ |
V |
Noise - Schedule of Recommended Mitigation Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Noise during Construction |
Use of silenced plant or plant equipped with mufflers or dampers in substitute of
ordinary plant. |
During construction |
# |
# |
# |
# |
# |
V |
V |
V |
V |
@ |
V |
V |
Reduce the number of equipment and their percentage on-time. |
# |
# |
# |
# |
# |
V |
V |
V |
V |
V |
V |
V |
||
3.5 m and 5.5
m high temporary noise barrier at culvert construction work area
(Figure 2a of
the Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
3 m high temporary noise barrier along the northern edge of Bridge 12 at ground level (Figure 2b of the Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
2 m high temporary noise barrier along the northern edge of Bridge 12 at bridge level (Figure 2b of the Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
2.5 m high temporary noise barrier along Tai Wo Service Road
West (Figure 2c of
the Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
3.5m and 7m high temporary noise barrier along Tai Wo Services Road
West near Tai Hang (Figure 2c of the
Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
7 m high temporary noise barrier along Tai Wo Service Road West near Tai Wo Footbridge work area (Figure 2d of
the
Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
7 m high temporary noise barrier near Kiu Tau Footbridge work area (Figure 2d of the
Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
2.5 m high temporary noise barrier near
river diversion work area (Figure 2e
of the Environmental Permit). |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
Water Quality - Schedule of Recommended Mitigation Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Water quality during Construction |
Demolition and reconstruction of
bridges -
Prevent off-site migration through use of sheet piles. -
Minimise duration of works as far as practical. -
All sewer and drainage connections should be sealed to prevent debris, soil,
sand, etc, from entering public sewers/drains. -
Site surface
runoff
should
be
settled
to
remove sand/silt
before
it is
discharged into the existing storm drains. |
During construction |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
V |
Road Widening Works, Earthworks and Culvert Extension Works -
Wastewater generated from any concrete batching washdown of equipment or similar activities should be discharged
into foul sewers, after the removal of
settable solids, and pH adjustment as necessary. All sewage discharges
from the
study area
should meet the TM standards and approval from EPD through the
licensing process is
required. -
Sand traps, oil interceptors and other pollution prevention installations should
be provided, properly cleaned and maintained. -
Runoff from
exposed working areas, unfinished slopes
and
from
unlined temporary channels should be directed to
stilling basins and/or silt traps before discharging to the
drainage outfalls. -
Regular inspections of stilling basins and/or silt
traps is required to
ensure that sediment is
not conveyed into the existing drainage system. -
Open
stockpiles should be covered with a tarpaulin cover. -
During the wet season, any exposed top soils should be covered with a
tarpaulin, shotcreted or hydroseeded. -
Sand and silt from wash-water from vehicle washing should be settled out before discharging into storm drains. -
Fuels should be stored in bunded areas such that
spillage can be easily collected. |
# |
# |
V |
V |
V |
V |
@ |
V |
V |
V |
+ |
@ |
Waste - Schedule of Recommended Mitigation Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Waste Management during Construction |
General Waste -
Transport of wastes off site as soon as possible. -
Maintenance of accurate waste records. -
Minimisation of waste generation for disposal (via reduction/recycling/re-use). -
No on-site burning will be permitted. -
Use of re-useable metal hoardings/signboards. |
During construction |
V |
@ |
V |
V |
V |
V |
V |
@ |
V |
V |
V |
@ |
Vegetation from
site clearance -
Segregation of materials to facilitate disposal. -
Mulching to reduce bulk and where
possible review opportunities for the possible beneficial use within
landscaping areas. |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Demolition Wastes -
Segregation of
materials to
facilitate disposal. -
Appropriate stockpile management. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Excavated Materials -
Segregation of materials to
facilitate disposal / reuse. -
Appropriate stockpile management. -
Re-use of excavated material on
or off site (where possible). -
Special handling and disposal
procedures in the event that contaminated materials are excavated. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Construction Wastes - Segregation
of materials to facilitate recycling/reuse (within designated area in appropriate
containers/stockpiles). - Appropriate
stockpile management. - Planning
to reduce over ordering and waste generation. - Recycling
and re-use of materials where possible (e.g. metal, wood from formwork) -
For material which cannot be
re-used/recycled, collection should be carried out by an approved waste
contractor for landfill disposal. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Bentonite Slurries -
Bentonite slurries should be
reused as far as possible. - Disposal in
accordance with Practice
Note For Professional Persons ProPECC
PN 1/94. |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
Chemical Wastes - Storage
within locked, covered and bunded area. - The storage area shall not be located
adjacent to sensitive receivers e.g. drains. - Minimise
waste production and recycle oils/solvents where possible. - A
spill response procedure shall be in place and absorption material available
for minor spillages. - Use
appropriate and labelled containers. - Educate
site workers on site cleanliness/waste management procedures. - If
chemical wastes are to be generated, the contractor must register with EPD as a
chemical waste producer. -
The chemical
wastes shall be
collected by a licensed chemical
waste collector. |
# |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
@ |
+ |
@ |
@ |
||
Municipal Wastes - Waste
shall be stored
within a temporary
refuse collection facility,
in appropriate containers prior to collection and disposal. -
Regular, daily collections are
required by an approved waste collector. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
Ecology - Schedule of Recommended Mitigation Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Accurate Delineation of Works Area - Boundaries of proposed works areas shall be clearly identified and separated from
external areas by a physical barrier to prevent encroachment of adjacent habitats. -
Individual trees which fall within
the works areas but which work plans do not require removal are to be retained
and fenced off to maximize protection. |
# |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Vegetation Clearance - No
fires shall be lit within the works area for the purpose of burning cleared vegetation. -
The Contractor shall give consideration to mulching the cleared vegetation for recycling within the works area / adjacent land. |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Dust generation There are a number of measures which shall be taken as specified in the Air Pollution Control (Construction Dust) Regulation on ‘Dust Control Requirements, including the following key measures to be applied during construction: - Vehicle
washing facilities to be provided at every discernible or designated vehicle
exit point; - All
temporary site access roads shall be sprayed with water to suppress dust as
necessary; - All
dusty materials should be sprayed with
water immediately prior to any handling; and - All
debris should be covered entirely by impervious sheeting or stored in a sheltered
debris collection area. |
# |
@ |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Surface Run-off In general, mitigation measures shall be in accordance with ProPECC PN1/94 on ‘Construction Site Drainage’. Key measures include: - Bund
and cover stock piles to avoid run-off; - Channel
any run-off through a system of oil, grease and sediment / silt traps and
reuse water on site where ever practical; - All
vehicle maintenance to be undertaken within a bunded area; and -
Maximise vegetation retention
on-site to maximise absorption (minimise transport). |
# |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
Landscape and Visual Impact - Schedule of Recommended Mitigation
Measures
Impact |
Mitigation Measures |
Timing |
Implementation
Status |
|||||||||||
Nov 13 |
Dec 13 |
Jan 14 |
Feb 14 |
Mar 14 |
Apr 14 |
May 14 |
Jun 14 |
Jul 14 |
Aug 14 |
Sep 14 |
Oct 14 |
|||
Landscape and Visual during Construction |
Preservation of Existing Vegetation - Trees
identified for retention within the project limit would be protected during
the works; - The
tree transplanting and planting works shall be implemented by approved Landscape
Contractors. |
During construction |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
Temporary Works Areas -
Where
feasible the works areas would be screened using hoarding and existing vegetation
would be retained where possible to reduce the landscape and visual impacts
arising from the construction activity. The landscape of these works areas
would be restored following the completion of the construction phase. |
# |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Hoarding -
A hoarding would be erected where
practicable in the most visually sensitive locations to screen the temporary
construction works from the local VSRs. |
# |
# |
V |
V |
V |
V |
V |
V |
V |
V |
V |
V |
||
Top Soils -
The
works will result in disturbance to extensive areas of topsoil. Topsoil
worthy of retention should be stockpiled for use following completion of the
civil engineering works. It should either be temporarily vegetated with
hydroseeded grass or turned over on a regular basis. |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
||
Protection of
Important Landscape Features - Important
features such as temples, Island House and kilns within the study area, although
remote from the proposed works retained and adequately protected. |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
# |
Legend:
V = implemented;
x = not implemented;
@ = partially implemented;
+ = recommended and
immediately implemented during the site inspection by the Contractor;
N/A = not applicable - No
such work was undertaken or no such material was used on site;
# = to be implemented.