13.1
This section further elaborates the requirements of EM&A
for the construction and operation of the Project, based on the assessment
results of various issues. The following
sections summarize the recommended EM&A requirements. Details of the EM&A programme are
presented in a stand-alone EM&A Manual released separately.
Construction
Phase
13.2
Construction noise impacts from this Project would be
expected at NSRs identified in this EIA.
Appropriate mitigation measures would be required in order to alleviate
the impacts to meet the EIAO-TM criteria.
Noise monitoring during construction phase needs to be carried out to
ensure that such mitigation measures would be implemented properly.
13.3
The construction activities will be carried out during
daytime (between 0700 and 1900 hours).
If there is construction work undertaken in restricted hours,
measurements will also be carried out for the following
periods:
·
Between
1900 and 2300 hours;
·
Between
2300 and 0700 hours of next day; and
·
Between
0700 and 1900 hours on Sunday or public holidays
13.4
Noise monitoring shall be carried out at all the designated
monitoring stations, and measurement shall be undertaken at a minimum logging
interval of 30 minutes for daytime and 15 minutes (as three consecutive Leq,
(5 minutes) readings) for evening time and night time. The Leq, L10 and L90
shall be recorded at the specified interval.
Type 1 sound level meters, which comply with the International
Electrochemical Commission (Publications 651:1979 and 804:1985), must be used
for carrying out the noise measurement.
13.5
Ad hoc noise monitoring shall also be carried out if
necessary. Prior to the commencement of
the Project, baseline monitoring shall be measured for a continuous period of
at least 14 consecutive days at a minimum logging interval of 30 minutes for
daytime and 15 minutes (as three consecutive Leq, (5 minutes)
readings) for evening time and night time. The Leq, L10
and L90 shall be recorded at the specified interval. Details of the EM&A programme are
provided in a stand-alone EM&A Manual.
Operation Phase
13.6
Although no adverse fixed
noise source
impact is expected during the operation of the Project
with the proposed mitigation measures in place, it is recommended that operational
phase noise
monitoring should be undertaken during the night-time show performance at
Construction
Phase
13.7
A baseline review shall be undertaken upon
award of the
construction contracts. The purpose of
the review is:
n
to check the status of the landscape resources within and
adjacent to the works site
n
to determine whether or not any change has occurred to the
status of the landscape resources since the EIA
n
to determine and to recommend amendments to the design of
the landscape and visual mitigation measures due to the above changes, if any.
13.8
The landscape and visual mitigation measures shall be
incorporated in the detailed design, so as to ensure the effectiveness of the
mitigation measures described in Table 4.8, Section 4 of EIA report. Any changes to the mitigation measures that
may be recommended to match the baseline review result or to match the ongoing
EM&A shall also be incorporated in the detailed design.
13.9
The design, implementation and maintenance of mitigation
measures shall be checked bi-weekly to ensure that they are fully realised. Any potential conflicts among the proposed
mitigation measures, the project works, and operational requirements from the
Park’s management shall also be identified and resolved early. The proposed mitigation measures should
always be treated with priority.
13.10
A Registered Landscape Architect with substantial
construction site experience shall be responsible for supervising the landscape
works during the Construction Phase and the Establishment Period.
13.11
A competent person, trained in
the theory and practice of outdoor lighting and illumination requirements and
lighting systems will be employed to design the overall lighting strategy to
avoid night-time glare.
Operational
Phase
13.12
All landscape and visual mitigation measures shall be
monitored quarterly during the first year of the Operational Phase.
13.13
Monitoring requirements for terrestrial ecology are outlined
in Section 5.144-5.146 of the Report. In summary, monitoring would include:
n
The implementation of all mitigation measures described in
the Report should be subject to regular audit.
n
Following transplantation, the health and condition of
individuals of the species of conservation interest affected by the proposed
works should be monitored.
n
No adverse impact on coral communities would be anticipated
during the construction and operation phase of the Project, nevertheless, coral
monitoring is proposed as a precautionary measure. The coral monitoring programme would focus on
the coral communities located close to potentially impacted areas. The details of monitoring programme are
discussed in the EM&A manual.
13.14
Waste management will be the contractor’s responsibility to
ensure that all wastes produced during the construction of the Project are
handled, stored and disposed of in accordance with the recommended good waste
management practices and EPD’s regulations and requirements. The mitigation measures recommended in
Section 6 should form the basis of the site Waste Management Plan to be
developed by the Contractor at the construction stage.
13.15
It is recommended that the waste arisings generated during
the construction activities should be audited periodically to determine if
wastes are being managed in accordance with approved procedures and the site
Waste Management Plan. The audits should
look at all aspects of waste management including waste generation, storage,
recycling, transport and disposal. An
appropriate audit programme would be to undertake a first audit near the
commencement of the construction works, and then to audit on a quarterly basis
thereafter. In addition, the routine
site inspections should check the implementation of the recommended good site
practices and other waste management mitigation measures.
13.16
For CBD site, the site
investigation has been undertaken from 31 March to 3 April 2006. The results
showed that concentration of Total Petroleum Hydrocarbon (TPH), arsenic and tin
exceeded the relevant Dutch B values.
13.17
A Remediation Action Plan (RAP) has been prepared which
essentially recommends removal of the underground tanks and any local soil
contamination around them as well as replacing the removed material with clean
fill. Considering the estimated
contaminated soil volume is about
13.18
For the soil with elevated level of heavy metals, Toxicity
Characteristic Leaching Procedure (TCLP) test will be conducted as a further
study in order to determine the leachability (hence the toxic risk) of the soil
at the CBD Site. For a conservative approach, the clean-up strategy has been
proposed for the soil contaminated with arsenic/tin.
13.19
For HKSM site, the part responsible for SI at the HKSM site
would need to submit a CAP for EPD’s endorsement. Site investigation should be
conducted as soon as possible after the site operation ceases. A CAR should be prepared to
document the findings of the site investigation. Interpretation of laboratory
testing results in accordance with the ProPECC Note No. 3/94 and
comparison of the findings with relevant standards, such as the ‘Dutch B’
levels in the Dutch guidelines or other international practices as appropriate
shall also be included in the CAR.
13.20
If land contamination is confirmed, a Remediation Action
Plan (RAP) should be prepared and drawn up to formulate necessary remedial
measures. The subsequent CAR and RAP should be endorsed by EPD before
implementation of any remediation works. The contaminated sites should be
remediated before commencement of any construction work at the concerned sites
which may disturb the ground.
13.21
In the event that the current users or responsible parties
of the HKSM Site do not fulfil its obligations to undertake a CAP, CAR or RAP
or the necessary remediation to the satisfaction EPD, and the site handed-over
to OPC is not totally cleaned (for technical or other reasons), then the
whole HKSM site will initially be fenced off and the suspected contaminated
area will be fully demarcated and isolated. The purpose of fencing
the site is to restrict access to ensure there would be no risk to the general
public. Following
this, OPC undertakes to carry out, to the extent outstanding, the site
investigation.
13.22
Once the SI results are
available, the potential contaminated area could be identified and the
fenced-off area could be adjusted to isolate only the area of contamination. OPC would ensure that no
work would be undertaken within the fenced
off area. OPC would modify the design of the new entry plaza and access road so
as to accommodate this fenced off area in its layout and to limit
access to, as well as circulation around it.
Construction Phase
13.24
No adverse air quality impact on the ASRs in vicinity of the
Park would be identified during operation phase of the Proposed Project. Requirement for environmental monitoring and
audit is considered not necessary.
13.25
The water quality assessment concluded that the identified
water quality impacts could be minimized by implementing the recommended
mitigation measures to control site runoff and drainage during the construction
works. No unacceptable residual water
quality impact was expected. Effluent
discharge from the site to the public drain would be required to comply with
the terms and conditions of a discharge licence issued by EPD under the WPCO, and
no discharge shall be permitted to the artificial ponds. The monitoring of water quality within the
artificial ponds (which are the only water bodies located within the works
areas) during the land-based construction activities is therefore not considered
warranted for the Project. However, it
is recommended that regular site inspections be undertaken to inspect the
construction activities and works areas in order to ensure the recommended
mitigation measures are properly implemented.
13.26
Operational phase discharges from
13.27
EM&A associated with sewerage
and sewage treatment is not considered to be necessary.
Archaeology
13.28
A programme of archaeological investigation, including test
pit excavations should be conducted prior to the construction phase at the
13.29
A qualified archaeologist should undertake the investigation. The archaeologist should apply for a licence
to excavate and search for antiquities in accordance with the Antiquities and
Monuments Ordinance (Cap. 53). Upon any discovery of significant cultural remains
during the AI, the archaeologist will report the findings immediately to AMO
and provide field registers for examination upon request. An archaeological investigation report should
be compiled to satisfy and comply with the Antiquities and Monuments Office requirements.
13.30
The paving and any artificial layers currently covering the
HKSM and bus depot site should be removed in the areas where archaeological
testing will be conducted before the AI can commence. The access to the
Built
Heritage
13.31
The grave (G1) should be preserved in situ and if any works
take place within one metre of the grave then a one metre buffer zone (marked
by a one temporary fence) should be provided by the contractor for the duration
of the construction works.
13.32
The blasting activities should be inspected and audited
at practical intervals to ensure that the assumptions
and recommendations
from the QRA and the safeguards and recommendations from the systematic hazard
identification are consistently implemented in accordance with the intent
of the hazard to life assessment.