10.1
Introduction
10.1.1
Not applicable
10.1.2A While
the HKBCF reclamation works are under a separate design and construction
consultancy, this Contract only covers HKBCF superstructure and infrastructure
works. No marine transportation will be expected. No significant ecological
impacts are anticipated from this land-based construction assignment. The
implementation of recommended mitigation measures during the construction of
superstructures and infrastructures are presented in the following section.
10.2
Ecological
Mitigation Measures and Implementations
Marine Water Quality
10.2.1
Not applicable
10.2.2
Not applicable
10.2.3
Not applicable
10.2.4A Good
Site Practices: – Effluent monitoring should be incorporated to make sure that
the discharged effluent from construction sites meets the relevant effluent
discharge guidelines.
10.2.4
10.2.5
Strict
enforcement on No-dumping – To avoid degrading the Chinese White Dolphin
habitat, restrictions prohibiting dumping of rubbish, food, oil, or chemicals
will be strictly enforced.
10.2.6
Site runoff control - For works on land, standard
site runoff control measures will be established and strictly enforced to
ensure that discharge of contaminated or silt-laden runoff into North Lantau
waters is minimised.
10.2.7A Spill
response plan – To minimise the adverse effects to marine ecology in the
event of accidental spillage of oil or other hazardous chemicals, a spill
response plan, with specific provisions for protecting marine ecology and
dolphins, will be formulated.
10.2.7
10.2.8
Not
applicable
Terrestrial Disturbance
10.2.9
The impact from this minor and short-term source can
be reduced by good site practice, including strictly following the permitted
works hours, using quieter machines where practicable, and avoiding excessive
lightings during night time.
Sedimentation from Land-based works areas
10.2.10
Not applicable
Marine Noise and Disturbance
1) Bored piling
10.2.11
Not applicable
10.2.12
Not applicable
10.2.13
Not applicable
2) Sheet piling
10.2.14
Not applicable
10.2.15
Not applicable
3)
Reclamation
and Works Vessels
10.2.16
Not applicable
10.2.17
Not applicable
10.2.18
Not applicable
Marine Traffic
10.2.19
Not applicable
10.2.20
Not applicable
10.2.21
Not applicable
Road Surface Runoff
10.2.22
Silt-grease traps should be deployed to prevent a
direct input of road surface runoff to the marine waters.
Chemical spillage
10.2.23
A Maritime Oil Spill Response Plan (MOSRP) has been
developed by Marine Department to deal with oil spill and their potential
hazard to the Hong Kong waters. The main objective of the MOSRP is to ensure a
timely and effective response to oil spillages and/or their potential treats in
the Hong Kong waters.
10.2.24
Similar to the Shenzhen Western Corridor project, a
contingency plan will be formulated to deal with the accidental event of the
serious spillage of oil or other harmful chemicals. A contingency plan in this
regard will be primarily for safety issues and water quality, but could also
help to safeguard the dolphin population. Following the example of Shenzhen
Western Corridor, it will be specified in the contingency plan that AFCD must
be alerted by the Hong Kong Police Force or Fire Service Department in case an
accident of spillage of chemical or oil is reported.
Precautionary/Enhancement Measures
10.2.25
Not applicable
10.2.26
Not applicable
10.2.27
Not applicable
10.3
Monitoring
and Audit for Ecology
10.3.1A An ecological monitoring and audit
programme would be needed for the Project HKLR and HKBCF developments. The
monitoring programme will include monitoring of physical parameters such as
air, noise and water quality, and ecological aspects such as Chinese White
Dolphin. The ecological monitoring and audit programme will monitor
potential impacts through construction and operation activities, and will
verify the assessments which were made in the EIA report. The monitoring
includes the following tasks:
10.3.2A Dolphin monitoring – A dolphin
monitoring programme at Northeast and Northwest Lantau, in particular
the dolphin sighting hotspots (e.g. Brothers Islands) and areas where juveniles
have been sighted, should be set up
to verify the predictions of impacts and to ensure that there are no unforeseen
impacts on the dolphin population during construction phase.
10.3.3
Not applicable
10.3.4
Not applicable
10.3.5
Not applicable
10.3.6
Not applicable
10.3.7A The ecological monitoring surveys shall be
undertaken by suitably qualified dolphin specialist(s), who shall have
sufficient (at least 5-10 years) relevant post-graduate experience and
publication in the respective aspects. Approval on the specialist(s) responsible
for ecological monitoring survey shall be sought from AFCD and EPD.
10.4
Monitoring
Locations
10.4.1A Dolphin
monitoring – the dolphin monitoring should adopt line transect vessel survey
method, and cover the following line-transect survey areas as in AFCD annual
marine mammal monitoring programme:
n
Northeast Lantau survey area; and
n
Northwest Lantau survey area
10.5
Baseline
Monitoring for Ecology
10.5.1A Baseline for dolphin monitoring
shall be established by two surveys per month in each survey area stated in Section
10.4.1A for a period of three months prior to the commencement of works and
agreed with AFCD. The purpose of the baseline monitoring is to establish
pre-construction conditions prior to the commencement of the works and to
demonstrate the suitability of the proposed monitoring method.
10.5.1
Not applicable
10.5.2
Not applicable
10.5.3
Not applicable
10.5.4
Not applicable
10.5.6A The
baseline monitoring was undertaken for the Project between September and
November 2011 under Agreement CE No.35/2011 (EP) “Baseline Environmental
Monitoring for Hong Kong–Zhuhai-Macao Bridge Hong Kong Projects –
Investigation” prior to commencement of construction of the Project. The
baseline monitoring results obtained under Agreement CE No.35/2011 (EP) will be
adopted for this Contract.
10.6
Impact
Monitoring for Ecology
10.6.1 Not
applicable
10.7
Post-construction
Monitoring for Ecology
10.7.1A The
dolphin monitoring will be conducted in the post-construction phase at least
for 2 year after completion of construction. The post-construction
monitoring will be carried out twice a month in each survey area stated in
Section 10.4.1A.
10.7.2A The
post-construction dolphin monitoring for HKBCF for the period between March 2019
and February 2020 was conducted under Contract No. HY/2013/04 and Contract No.
HY/2019/01 continued the monitoring since March 2020.
10.8
Event
and Action Plan
Not applicable