16.1.1.1
This
section elaborates the requirements of environmental monitoring and audit
(EM&A) for the construction and operational phases of the Project, based on
the assessment results of the various environmental issues.
16.1.1.2
The
purpose of the EM&A programme is to ascertain and verify the assumptions
implicit to, and accuracy of, EIA study predictions. The EM&A programme includes the scope of
the EM&A requirements for the Project to ensure compliance with the EIA
study recommendations, to assess the effectiveness of the recommended
mitigation measures and to identify any further need for additional mitigation
measures or remedial action.
16.1.1.3
The
following sections summarise the recommended EM&A requirements for this
Project. Details of the requirements are
provided in a stand-alone EM&A Manual.
16.2.1.1
Dust
monitoring and regular site audit should be conducted during construction phase
so as to check compliance with the legislative requirements. Details of the monitoring and audit programme
are contained in a stand-alone EM&A Manual.
16.2.1.2
Performance
compliance tests are recommended for the deodourising
units of planned EPP, to ensure the effectiveness of deodorisation treatment
implemented in the Project. For the
proposed FWPF, continuous monitoring of H2S and NH3
concentrations and air flow at the exhaust outlet of the deodourization
system are required after commissioning to ensure the actual odour emission
rate not exceeding the emission limit adopted in the calculation shown in Appendix 3.10. Separate EIA study would be conducted for the planned refuse transfer
station (RTS) and the relevant EM&A requirements would be addressed in its
individual EIA study. In addition, commissioning test should be conducted for
the CHP units and the boiler to ensure proper operation of the facilities in
the proposed EPP. As H2S is
the major odour source associated with the EPP, it is recommended to conduct
the odour monitoring in terms of hydrogen sulphide (H2S) at the
deodorizers upon commissioning and in the first three years to determine
whether it can meet the odour removal performance requirement. Upon the third-year monitoring, the odour
monitoring should be reviewed and agreed with EPD if the monitoring is required
to be continued
16.2.1.3
In
addition, Odour patrol is proposed to monitor the
potential odour impact from the proposed EPP during the period of regular and
ad hoc maintenance or cleaning of the deodorisation system. An Odour Complaint Registration System is also introduced in the
EM&A programme to record information regarding the odour complaint and
hence facilitates efficient investigation works.
16.3
Noise Impact
16.3.1.1
Noise
monitoring is recommended as part of the environmental monitoring and audit
(EM&A) programme for the construction phase of the Project to check
compliance with the daytime construction noise criteria. Weekly site audit is also recommended to
ensure the proper implementation of the recommended mitigation measures for
daytime construction activities as part of the EM&A programme. Details of the EM&A requirements are
provided in the EM&A Manual.
16.3.1.2
There
would be no adverse traffic noise impact anticipated from Project contribution
with the proposed mitigation measures in place.
Cantilevered and vertical noise barriers are recommended on San Tin
Highway and some proposed local distributor roads. Road traffic noise levels
should be monitored at representative existing NSRs, which are in the vicinity
of the recommended direct mitigation measures, during the first year after road
opening.
16.3.1.3
The
assessment has indicated that the planned fixed plants at vehicle depot, planned
police station, sport centres, Cultural & Recreational Complex, health
facilities, GIC Complex, Information and Technology premises/data centre,
electrical substation, DCS, logistic storage and warehouses, RCP, SPSs, Water
Reclamation Plant, EPP and TIH within the Project would comply with the EIAO-TM
standard if the design taking into account the proposed maximum allowable sound
power levels. Monitoring of operation
noise from these planned fixed plants during the testing and commissioning
stage is recommended to verify the compliance with the EIAO-TM criteria. Separate EIA studies would be conducted for
proposed RTS, the 400kV electricity substation and MTRC ventilation shafts,
relevant EM&A requirements would be addressed in its individual EIA studies.
16.4.1.1
With
proper implementation of the recommended pollution control measures, water
pollution from the Project would be avoided and minimised and no adverse water
quality impacts would be expected during construction phase. Water quality monitoring during construction
phase is proposed in the watercourses in the Project area including San Tin
Eastern Main Drainage Channel (STEMDC) and its tributaries, San Tin Western
Main Drainage Channel (STWMDC) and its tributaries, Shenzhen River, Lok Ma Chau
Meander, small watercourses at Sam Po Shue, Lin Barn Tsuen, and along Sam Tam
Road. In addition, weekly site audit
should be undertaken during the construction phase to ensure the recommended
pollution control measures are properly implemented. A WPCO license should be obtained if there
has construction drainage discharge, and the discharge shall be in accordance
with the WPCO license.
16.4.1.2
Water
quality monitoring is recommended for the first year of the normal operation of
proposed EPP. The treated effluent
quality from the proposed EPP shall comply with tertiary treatment level. Follow-up water quality monitoring exercise
shall be conducted after each emergency discharge to monitor the recovery of
water quality in the vicinity.
Monitoring of the treated effluent quality will be governed by the WPCO
license to ensure that the effluent quality would comply with the design
standards. Detailed environmental
monitoring procedures are provided in the standalone EM&A manual.
16.4.1.3
Water
quality monitoring for the Project can be divided into the following stages:
·
Water
quality monitoring during construction phase;
·
Water
quality monitoring during the first year operation of the proposed STLMC EPP;
·
Follow-up
water quality monitoring after each emergency discharge.
16.5.1.1
Waste management would 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 good waste
management practices and EPD’s regulations and requirements. The recommended mitigation measures should
form the basis of the site WMP to be developed by the Contractors as part of
the Environmental Management Plan in accordance with ETWB TC(W) No. 19/2005 Environmental
Management on Construction Sites and submitted to the Engineer for approval
at the construction stage. A trip ticket
system in accordance with DEVB TCW No. 6/2010 should be in place. The
monitoring and auditing requirement stated in ETWB TCW No.19/2005 and DEVB TCW
No. 6/2010 should be followed with regard to the management of C&D
materials.
16.5.1.2
Monthly site audit should be conducted by the
Environmental Team (ET) during construction phase if wastes are being managed
in accordance with approved procedures. The audits should look at all aspects
of on-site waste management practices including waste generation, storage,
recycling, transport and disposal. Apart from site inspections, documents
including licenses, permits, disposal and recycling records should be reviewed
and audited for compliance with the legislation of the recommended good site practice
and other waste management mitigation measures.
16.6.1.1
Remediation
works, if necessary, would be carried out based on the recommended further
works outlined in Section 8.8.3. Mitigation measures as recommended in the
future EPD approved RAP should be implemented during the remediation works. The
EM&A requirements should be carried out in the form of regular site
inspection to ensure the recommended mitigation measures are properly
implemented.
16.7.1.1
Monitoring for landfill
gases shall be conducted during operation phases of the Project. Where applicable, pre-entry monitoring
following the requirements of the Factories and Industrial Undertaking
(Confined Spaces) Regulation is recommended.
The monitoring programme and detailed actions should be submitted to EPD
for approval in the detailed design stage. The proposed parameters, locations
and frequency of landfill gas monitoring for various phases of Project are
detailed in the EM&A Manual.
16.8.1.1
Key
mitigation measures on specific ecological resources were recommended under Section 10 of this EIA Report, which include wetland compensation, mitigation for
egretries, mitigation for night roosts, inclusion of flight corridor, woodland
compensation, transplantation / translocation / nest control of species of
conservation importance, and establishment of wildlife corridor. These measures should be monitored and
audited by local ecologist(s) with relevant experience throughout the
construction phase and during the operation phase to ensure proper implementation
and, where appropriate, to monitor the performance of the proposed mitigation
measures (e.g. monitoring upon the establishment of
compensation areas may extend into operation phase). Furthermore, monthly site audit should be
carried out throughout the construction phase to ensure recommended avoidance,
minimisation, and pollution control measures are properly implemented. In case of non-compliance, contractor should
be informed to strengthen the proposed measures accordingly. Details of EM&A requirements are
discussed in the standalone EM&A Manual.
Wetland Compensation
Monitoring on Construction Phase Disturbance
16.8.1.2
During the construction phase of the Project,
ecological monitoring should be conducted to monitor the ecological disturbance
arising from the construction activities under the Project, to verify the
assumption adopted under the ecological assessment, including the assumption of
Exclusion Zone (EZ) and Reduced Density Zone (RDZ). In turn, the effectiveness of the proposed
minimisation measures should also be reviewed under part of the ecological
monitoring on construction phase disturbance.
Where necessary, the need for further
or more effective mitigation measures shall be considered. The target indicator waterbird species that
were adopted during formulation of mitigation measures (refer to Section 10) shall be
focused during ecological monitoring.
Details of construction disturbance monitoring (e.g. monitoring period,
location, frequency, and parameters) are provided in the standalone EM&A Manual.
Monitoring on Wetland Enhancement
16.8.1.3
Enhanced wetland of 288 ha in the proposed SPS WCP
would be established as a mitigation measure for the unavoidable loss of
wetland habitats under the Project. The
implementation details of the enhanced wetland, the associated management and monitoring requirements (e.g. monitoring
location, frequency and parameters) would be provided in a subsequent “Habitat Creation and Management
Plan” (HCMP) and subject to detailed design.
The HCMP should be submitted for
approval from relevant Government departments (including
AFCD and EPD), at least three months before the commencement of pond filling
works.
16.8.1.4
A
working group will be formed between CEDD (as San Tin Technopole’s works agent)
and AFCD (as SPS WCP’s sponsoring department) to coordinate the progress of
pond filling and SPS WCP implementation.
With the coordination of the working group, ecological monitoring will
be conducted to monitor the effectiveness of the proposed mitigation measures
(i.e., ecological function enhancement measures). For example, the abundance and/or density of target indicator waterbird species shall be monitored. The standalone EM&A Manual further outlines the requirement and details to be included in the HCMP
(e.g. monitoring period, location, frequency, parameters, and target
levels).
Egretry Monitoring
16.8.1.6
Two
egretries (MPLV Egretry and MPV Egretry) were recorded within / adjacent to
Project boundary during recent ecological survey (2022) and buffer area(s) of
100 m from the
footprint of both egretries were proposed (Figure 10.11 refers). Pre-construction surveys are
necessary to confirm the latest boundary of the egretries before commencement
of the construction works, and the 100 m buffer area should be verified
according to the latest site observation on the egretries. The Pre-Construction Egretry Survey shall be
conducted once per month during breeding season (between March and September)
by qualified ecologist with 5 years relevant experience. A Pre-Construction Egretry Survey Report
should be submitted to relevant Government departments (including AFCD and EPD)
for approval no later than two months before the commencement of works within the
buffer area.
Details of the Pre-Construction Egretry Survey and the requirement of
the subsequent Pre-Construction Egretry Survey Report are provided in the
standalone EM&A Manual.
16.8.1.7
An “Open Space” with enhancement features was
proposed to preserve the MPLV Egretry.
Upon the Pre-construction Egretry Survey, an Egretry Habitat Enhancement
and Management Plan including the details of design plan, site preparation
works, works schedule and management plan should be prepared by qualified ecologist with relevant experience and submitted to relevant Government
departments (including AFCD and EPD) for
approval no later
than two months before the commencement of works within the buffer area.
Egretry Monitoring Survey
16.8.1.8
During
construction phase, egretry monitoring survey should be conducted monthly for
both MPLV Egretry and MPV Egretry during breeding season (between March and early
September). Upon the completion of
enhancement work at the “Open Space”, egretry monitoring survey should be
conducted monthly for the first three breeding seasons (between March and early
September, for three years) of the operation phase. The monitoring survey should be conducted by
qualified ecologist with 5 years relevant experience. The monitoring results should be reported in the monthly EM&A
Reports. A further Method Statement on construction
activities near the egretries and necessary tree crown pruning works shall be
submitted to AFCD for approval in advance of the works.
Night Roost Monitoring
Pre-construction Night Roost Survey
16.8.1.9
Two
night roosts (Ha Wan
Tsuen Night Roost and San Tin Open Storage Area Night Roost) were identified within the Project boundary during recent ecological
survey (2022) and encroachment
into the footprint of night roosts is unavoidable (Figures 10.6B to 10.6D refer). As such, compensation measure via the
re-provision of roosting substratum have been proposed for both night roosts,
to be located within the Project area.
16.8.1.10 Pre-construction surveys are
necessary to confirm the latest boundary and details of the night roosts, as
well as the 100 m buffer area before commencement of the construction
works. The pre-construction survey shall
be conducted once per month between September and March by qualified ecologist
with 5 years relevant experience. A
Pre-construction Night Roost Survey Report should be submitted to relevant
Government departments (including AFCD and EPD) for approval no later than two months
before the commencement of works within the buffer area. Details of the Pre-construction Night Roost
Survey and the requirement of the subsequent Pre-construction Night Roost
Survey Report are provided in the standalone EM&A Manual.
Night Roost Monitoring
16.8.1.11 While roosting substratum at the two
night roosts would be felled during construction phase, re-provision of
roosting substratum at the proposed Fisheries Research Centre (Figures 10.6C and 10.6D refer) and along STWMDC (Figure 10.6B refers) would be completed before dry season, prior to the arrival of the
overwintering ardeid and Great Cormorant.
Felling of trees at both night roosts should only be conducted in wet
season (April – September) when no roosting individuals are expected.
16.8.1.12 Night roost monitoring survey should be conducted
at the original roosting sites until
commencement of tree felling works, and upon re-provision of roosting
substratum, conducted in the night roost re-provision sites and nearby
area to investigate the effect of night roost re-provision site and confirm the
locations of roosting ardeid and Great Cormorant, if any. Upon the successful establishment of the
re-provided night roosts, a
similar buffer area of 100 m should also be implemented at the footprint of the
re-provided night roosts, where noisy construction activities should be subject
to timing control. Details of the Night Roost Monitoring Survey, and the requirement for the monthly EM&A
Reports (e.g. presentation of monitoring results
and evaluation of the usage of the night roosts) are provided in the standalone EM&A Manual.
Flight Corridor Monitoring
Monitoring of Avifauna usage across the Proposed 300m wide Flight
Corridor
16.8.1.13
A 300 m wide flight corridor across the LMC BCP
would be retained under the Revised RODP, while noisy construction activities
(with the use of PME) within this flight corridor would also be subject to
timing control during dry season (October to March). Given the potential importance
of this flight corridor, its bird usage should be monitored to ensure no
adverse impacts arises from construction activities. Construction phase monitoring should be
conducted, focusing on the composition of bird species and their abundance
using the flight corridor, observed from suitable vantage point(s) such as the
LMC Lookout. The flight line monitoring
survey should be conducted during hours of peak usage (e.g. before sunrise) and
conducted monthly when construction activities occur within this flight corridor. Details of the flight line monitoring, and
the requirement for further minimisation measures are detailed in the
standalone EM&A Manual.
Woodland Compensation Monitoring
16.8.1.14
For the unavoidable loss of woodland arising from
the Project, compensatory planting was proposed as a mitigation measure, while
the proposed location(s) and detailed design is subject to further
agreement. A detailed Woodland
Compensation Plan should be prepared by local ecologist / botanist with at
least 5 years relevant experience to form the basis of the proposed
compensatory planting. The Woodland Compensation Plan should
include implementation details, management requirement, and monitoring
requirements (e.g., methodology, schedule, frequency of
monitoring, and monitoring parameters) of the compensatory planting area. The Woodland Compensation Plan should be submitted to relevant Government departments (including AFCD and EPD) for approval at least two months before
commencement of planting.
16.8.1.15
Upon the completion of compensatory planting, a three-year monitoring by local
ecologist / botanist with at least 5 years relevant experience is recommended
to ensure proper establishment of this compensatory woodland. The associated monitoring and maintenance
works (e.g., irrigation, weeding, pruning, control of pests and diseases,
replacement planting and repair of damage) should be implemented and regularly
performed, where required. Requirement of the Woodland Compensation
Plan, and the subsequent woodland monitoring are provided in
the standalone EM&A Manual.
Transplantation / Seedling Planting of Flora Species of Conservation
Importance
16.8.1.16
All flora species of conservation importance
(e.g. Cycad-fern Brainea insignis, Incense Tree Aquilaria sinensis, and Luofushan
Joint-fir Gnetum luofuense) should be
protected as far as practicable. As a
mitigation measure, all the unavoidably affected individuals of Incense Tree
and Cycad Fern should be preserved on site, or transplanted to nearby suitable
habitat(s) prior to the commencement of site clearance as a last resort. Seedling planting of Luofushan
Joint-fir in nearby suitable habitat(s) prior to the commencement of site
clearance is recommended if on-site preservation is not feasible. A detailed Pre-construction Vegetation Survey
should be conducted by a suitably qualified botanist / ecologist with at least 5 years relevant experience to identify and record
the affected individuals prior to the commencement of any site clearance
works. A Protection and Transplantation / Seedling Planting Proposal including the subsequent
monitoring visit for the affected individuals should be prepared and conducted
by a suitably qualified ecologist / botanist with at least 5 years relevant
experience. The Proposal should be
submitted for approval from relevant Government departments (including
AFCD and EPD) at least two months before works commencement.
16.8.1.17
Upon
the transplantation / seedling planting of the
identified individuals, a post-transplantation /
post-seedling planting monitoring should be implemented to monitor the
health conditions and survival of the transplanted individuals. Details of post-transplantation monitoring are provided in the standalone EM&A Manual.
Translocation of Fauna Species of Conservation Importance
16.8.1.18
Fauna
species of conservation importance with low mobility should also be preserved as far as practicable, including two amphibian species Chinese Bullfrog and Spotted Narrow-mouthed Frog,
one freshwater fish species Rose Bitterling (with the symbiotic freshwater Chinese Pond Mussel for the fish species, and two freshwater crab species Cryptopotamon anacoluthon and Somanniathelphusa
zanklon.
The species should be translocated to nearby suitable habitat(s) prior
to the commencement of site clearance, while preliminary receptor sites
are suggested in Section 10.11. A
detailed pre-construction survey should be conducted by a suitably qualified
ecologist to identify and record the affected individuals prior to the
commencement of any site clearance works.
A Translocation Proposal including the subsequent monitoring visits for
the affected individuals should be prepared and conducted by a suitably
qualified ecologist with at least 5 years relevant experience. The Proposal should be submitted for approval
from relevant Government departments (including AFCD and EPD)
at least two months before works commencement.
16.8.1.19
Upon
the translocation of the identified individuals, a three-year
post-translocation monitoring should be implemented to investigate the survival
of translocated individuals as best as possible. Details of post-translocation monitoring are provided in the standalone EM&A Manual.
Pre-Construction Site Check and Nest Control
Wildlife Corridor
16.8.1.21 Wildlife corridors are proposed in
northern portion (between
Ha Wan Tsuen and STEMDC, across LMC BCP) and in
southern portion (near Shek Wu Wai Village, connecting future Green Belts) to
minimize habitat fragmentation, while the detailed design of the wildlife
corridor would be provided separately in design phase. To maintain the function of the wildlife
corridor, monitoring of the wildlife corridor shall be conducted during the
first three years upon establishment.
The conditions of the constructed wildlife corridor (e.g. structural
integrity, vegetation overgrown, any observable usage) shall be monitored
bi-monthly, while any potential usage of the wildlife corridor by mammal
species (e.g. Eurasian Otter and Small Indian Civet) should also be recorded
(e.g. with the use of camera traps).
Maintenance work such as weeding, screening, and repairing broken
fencing / structure should be conducted by the Project Proponent and the
Contractor, where necessary, during the period of monitoring of the wildlife
corridor conditions.
Pre-Construction Site Check for Eurasian Otter
16.8.1.22 While no sightings for Eurasian
Otter have been made from recent surveys and from regular monitoring by WWF and
KFBG, the overall wetland habitat was suggested to historically support a small
population of Eurasian Otters and provide ecological connection, as evidenced
by the presence of scats (Mcmillan et al., 2023). Considering the elusive nature
of this species, pre-construction site check(s) for this species shall be
considered under a conservative approach.
Pre-construction site check(s) for signs of otter usage (e.g. presence
of scats, and in particular, presence of otter holts or dens) shall be
conducted prior to the commencement of construction activities at the wetland
habitats on the northern portion of the Project site (e.g., San Tin, Sam Po
Shue, and Lok Ma Chau). Where signs of
otters were observed from pre-construction site checks or during construction,
construction activities in the area shall be ceased, and the need for further
mitigation measures shall be considered in liaison with relevant departments
(e.g., AFCD). Details of
pre-construction site check for Eurasian Otters are provided further in the
standalone EM&A Manual.
Other Minimisation Measures
16.8.1.23 EM&A programmes were recommended
to ensure compliance in regard of the potential air quality and noise impacts
(e.g. potential dust emission during construction phase, and potential noise
exceedance from construction noise).
Monitoring requirements for construction dust emission and construction
noise monitoring are further stated at Section 16.2 and Section 16.3 respectively. Regular site environmental audit during
construction phase is also recommended to ensure proper implementation of
mitigation measures and good site practices.
Details of the EM&A programme are provided in a stand-alone EM&A
Manual.
16.8.1.24 Water
quality monitoring and regular site inspections would be undertaken during the
construction to ensure that the recommended mitigation measures for water
quality are properly implemented.
Details on monitoring requirement for water
quality is further stated in the Section 16.4 and the stand-alone EM&A Manual.
16.9
Fisheries
Impact
16.9.1.1
With the implementation of mitigation and
precautionary measures proposed in Section 16.4, potential water quality impacts arising from the
Project would be minimised. No specific EM&A programme
is required for the potential water quality impact in association with
fisheries impact because the monitoring and audit requirement have been covered
by the EM&A programme for potential water quality impact recommended in
Section
16.4. The loss of fishpond (i.e.
loss of aquaculture area), aquaculture activities and potential will also be
compensated by the 40 ha of area in the proposed SPS WCP reserved solely for
aquaculture, through measures described in Section 11 (including incorporation of modernised
aquaculture and the development of Fisheries Research Centre, etc.), while the
location and detailed design would be subject to subsequent study. The
implementation details of the fisheries enhancement area, the associated
management, the supervision, and the maintenance works at the operation stage
would be included during the detailed design.
As the overall enhancement of fisheries resources brought about by the
mitigation measures is qualitative in nature and non-measurable, no further specific monitoring and audit programme
for fisheries resources would be
necessary.
16.10
Cultural
Heritage
16.10.1.1
Three other
identified items located within the Project area, including Tin Tak Heroes
Temple (MPL01), Mai Po Lung Vegetable Marketing Co-operative Society Ltd.
(MPL02) and Sun Tin Vegetable Marketing Co-operative Society Ltd. (SHT01),
should be preserved by record if direct impact of demolition is imminent. A comprehensive record through 3D scanning,
video recording and cartographic and photographic recording should be conducted
by the project proponent of subsequent developer(s) prior to any construction
works. A copy of these records should be
provided to AMO for record purpose and future use, such as research, exhibition
and educational programmes.
16.10.1.2
Monitoring of ground-borne vibration, tilting and
ground settlement, shall be employed for Entrance Gate, Enclosing Walls and
Shrine, Yan Shau Wai (HBN186) during the site formation and construction
phases. The monitoring should be incorporated with a set of Alert, Alarm and
Action (3As) system strictly following AMO’s monitoring requirements for grade
3 historic building. The proposed
3As levels during construction phase are presented in Table 12.5.6.
16.10.1.3
The actual 3As criteria should be agreed
with the AMO prior to the commencement of construction works. A monitoring proposal, including checkpoint
locations, installation details, response actions to be taken when reaching
each of the Alert/ Alarm/ Action (3As) levels and frequency of monitoring should be submitted to
AMO and relevant stakeholder(s) for consideration before commencement of the
works. Prior agreement and consent
should be sought from the owner(s), stakeholder(s) and relevant Government
department(s) for the installation of monitoring points on the built heritage
before commencement of the works. Record
of monitoring should be submitted regularly to AMO during the construction. AMO should be alerted in case any irregularities
are observed.
16.10.1.4
Monitoring of ground-borne
vibration, tilting and ground settlement is also proposed to be employed for
Yeung Hau Temple (San Tin) (MPT01) and
Structure between No. 5 and No. 7, Shek Wu Wai (SWW01) during the site
formation and construction phases under Buildings Ordinance.
16.10.1.5
The monitoring should be
incorporated with a set of Alert, Alarm and Action (3As) system strictly
following the requirements set out in Practice Note for
Authorized Persons, Registered Structural Engineers and Registered Geotechnical
Engineers - Ground-borne Vibrations and Ground Settlements Arising from Pile
Driving and Similar Operations (PNAP APP-137) on vibration-sensitive and
dilapidated buildings. If the alert
level is exceeded, the monitoring frequency should be increased. If the alarm
level is exceeded, the design of the construction may have to be amended. If
the action level is exceeded, all works should be stopped. Empirical guidelines on the 3As criteria provided in PNAP
APP-137 during construction phase are quoted in Table 12.5.7. The
actual 3As criteria shall be further confirmed via an assessment on the effects
of ground-borne vibrations, settlements and tilting on MPT01 and SWW01.
16.10.1.6
Prior agreement and consent
should be sought from the owner(s), stakeholder(s) and relevant Government
department(s) for the installation of monitoring points on the building before
commencement of the works. Record of
monitoring should be submitted regularly to the Buildings Department during the
construction under Buildings Ordinance. Buildings Department should be alerted
in case any irregularities are observed.
16.10.1.7 Seven other identified items may experience impacts of ground borne
vibration, tilting and settlement, namely Gurkha Cemetery (BH03), Mans’
Boundary Stone (BH06), Grave of Man Lun Fung ("麒麟吐玉書”) (BH07), Grave of Man Chung Luen (BH08), Grave of Man Chu Shui
(BH10), Grave of Mrs Man Leung (BH11) and Grave of Chong Yin Kei (BH12). With an aim to define the vibration limit and
to evaluate if ground-borne vibration, tilting and ground settlement monitoring
and structural strengthening measures are required during construction phase, a
baseline condition survey and baseline vibration impact assessment should be
conducted for these non-building structures by a qualified building surveyor or
qualified structural engineer during pre-construction stage of the proposed
developments. This is to ensure the
construction performance meets with the vibration standard stated in the EIA
report. Should monitoring of ground-borne
vibration, tilting and ground settlement be required, the monitoring procedures
shall refer to Section 16.10.1.4 and Section 16.10.1.5.
16.10.1.8
The entrance door of Yeung Hau Temple (San Tin) (MPT01) leads directly to the Project
boundary. A safe access route shall be
maintained for visitors during the construction stage.
16.10.1.9
There would be a temporary change of
access to Gurkha Cemetery (BH03), Grave of Man Lun Fung ("麒麟吐玉書”)
(BH07), Grave of Man Chung Luen (BH08), Grave of Man Chu Shui (BH10) and Grave
of Mrs Man Leung (BH11) during the construction phase. A safe access route to these burial grounds
should be maintained for conducting any mitigation measures, in particular
during Ching Ming Festival, Chung Yeung Festival and Purkha Divas.
16.10.1.10
The contractors should enforce
protocol to forbid any light machinery, such as handheld jackhammer, or heavy
machinery to come into direct contact with Yeung Hau Temple (San Tin) (MPT01), which is
located right next to the Project boundary.
Physical protective barriers/ covers or intervention/cushioning
materials, including but not limited to covering or sheltering, shall be
provided during the proposed construction works to separate the works areas
from the structure. No
piling works shall be allowed within the protective zone. No worker or any construction related
equipment(s) and material(s) should trespass the protective zone. The contractor should
propose the actual extent of the protective zone and suitable protective
covering materials to the satisfaction of AMO prior to the commencement of the
proposed construction works.
16.10.1.11
Implementation of mitigation measures in
the Air Pollution Control (Construction Dust) Regulation, dust
suppression measures and good site practice should be observed by the project
proponent during the construction phase in order to avoid dust accumulation on
the Yeung Hau Temple (San Tin) (MPT01)
and Grave of Chong Yin Kei (BH12).
16.10.1.12
For archaeology, archaeological watching
brief is recommended to be carried out in two archaeologically sensitive areas
(ASA), namely Shek Wu Wai ASA and Mai Po Lung (South) ASA, should works involve
soil disturbance occurred (such as site formation) during the construction
phase. The objective of the Archaeological Watching Brief is to ensure the
protection and preservation of any potential archaeological deposits,
particularly those from Song and Ming-Qing dynasties, that may exist within the
Shek Wu Wai ASA and Mai Po Lung (South) ASA.
The
project proponent or future subsequent developer(s) should employ an
archaeologist who must obtain a Licence to Excavate and Search for
Antiquities from the Antiquities Authority prior the commencement of the
fieldworks. The scope, methodology and
programme of the archaeological survey shall be agreed with AMO.
16.10.1.13
Five archaeologically sensitive areas,
namely Hop Shing Wai ASA, Mai Po ASA, Siu Hum Tsuen (West) ASA,
Siu Hum Tsuen (East) ASA and Pang
Loon Tei ASA, are either
occupied privately as buildings, paved car parks and open storages or have
their accessibility restricted by security measures such as fencing. These areas cannot be accessed, thus lack
archaeological information from this survey.
Further archaeological survey at later stages after land resumption but
before site formation works is recommended.
The survey shall be conducted by an archaeologist who must obtain a Licence
to Excavate and Search for Antiquities from the Antiquities
Authority prior the commencement of the
fieldworks. The scope, methodology and
programme of the archaeological survey shall be agreed with AMO.
16.10.1.14
In particular, Mai Po ASA includes
Mai Po Site of Archaeological Interest, which holds significant archaeological
potential. Previous archaeological
discovery indicated the discovery of jars of coins dating back to the Song
dynasty in this area. Given the
exceptional nature of these archaeological findings, the objective of the
archaeological survey should take into account the unique context of these
discoveries. The survey team should
thoroughly review the available finding reports to determine if any specific
conditions regarding the burial of these jars of coins exist.
16.10.1.15
Opportunity to conduct archaeological fieldwork as soon as possible
after land resumption would be considered by the Project Proponent.
16.10.1.16
The area of Mai Po Lung (North)
ASA is reserved for an egretry (Section 10 on Ecology of EIA report
refers). No impact on archaeology is
anticipated, no mitigation measure is required, subjected to the detailed
design of this area. Should construction
works involving soil disturbance are anticipated during the detailed design
stage, project proponent should review the impact assessment and propose
adequate mitigation measures to AMO for approval.
16.10.1.17
As a precautionary measure, if
antiquities or supposed antiquities under the Antiquities and Monuments
Ordinance (Cap. 53) are discovered, the project proponent is required to inform
AMO immediately for discussion of appropriate mitigation measures to be agreed
by AMO before implementation by the project proponent to the satisfaction of
AMO.
16.11.1.1 Hazard assessments were conducted to
assess the risks associated with operation of the proposed EPP, the HP Gas
Pipeline, and the proposed GFSs during the construction and operation phases of
the Project. The results showed that both the individual risks and societal
risks, taking into account the population induced by the Project, would be in
compliance with the risk criteria stipulated.
No EM&A programme is required.
16.12.1.1 The EIA has recommended landscape
and visual mitigation measures to be undertaken during construction and
operation phases of the Project. The following paragraphs define the EM&A
requirements to ensure the proposed landscape and visual impact mitigation
measures are effectively implemented.
16.12.1.2 The construction phase EM&A of
the landscape and visual environment and mitigation measures shall be carried
out as part of the site audit programme. Specific EM&A during operation
phase of the Project is not required as long as the proposed mitigation
measures in the EIA and as depicted in the Landscape Mitigation Plan are fully
implemented. Baseline changes with respect to the landscape and visual
environments should be carried out in reference to the recorded baseline
conditions of the site as described in Section 14.6 of the EIA report. The
monitoring should in particular record changes of each landscape resource,
landscape character area and the view conditions of each visually sensitive
receiver. Parameters used to describe changes in each of the above should be
the same as in Section 14.6 of the EIA report. The baseline monitoring should
be conducted as a one-off site survey prior to commencement of any construction
works. All mitigation measures proposed in the EIA and implemented by the
Contractor should be audited by a landscape auditor, as a member of the
Environmental Team, on a regular basis to ensure compliance with the intended
aims of the measures. Site inspection should be undertaken at least once every
two weeks throughout the construction period.
In particular, the extent of the agreed works areas should be regularly
checked during the construction phase. Any trespass by the contractor outside
the limit of the works, including any damage to the existing trees, woodland
and vegetation should be noted. The landscape auditor should audit the proposed
mitigation measures in the EIA to ensure that they are fully implemented within
the Project design and construction and the 12-month establishment period
during operation phase.
16.13.1.1 Based on the assessment results, the
exposure of the Public to the Electric field (ELF) and Magnetic field (EMF)
generated from the overhead cables are far below the guideline limits issued by
the ICNIRP. No specific EM&A
programme is required.
16.14.1.1 A summary of key EM&A
requirements for Schedule 2 designated projects (DP) subject to EP application
is provided in Table 16.1. Details
are provided in the stand-alone EM&A Manual.
Table
16.1 Summary of Key EM&A
Requirements for Schedule 2 DPs Subject to EP Application under this Study
|
Environmental Impact
|
Summary of EM&A Requirements
|
|
|
|
DP 1 - Construction and operation of primary distributor road P1,
district distributor road D1, D2, D3, D4, D5 and D6
|
|
|
Air Quality
|
·
Construction dust monitoring and regular site audit
during construction period
|
|
|
Noise
|
·
Construction noise monitoring and regular site audit during construction
period
|
|
|
Water Quality
|
·
Regular site audit during construction phase
|
|
|
Sewerage and Sewage Treatment Implications
|
·
N/A
|
|
|
Waste Management Implications
|
·
Regular audits and site inspections should be
carried out during construction phase
|
|
|
Land Contamination
|
·
If the recommended further works confirm remediation works is
required, regular site audit during construction
phase is required to ensure the implementation of proposed mitigation
measures effectively
|
|
|
Landfill Gas
|
·
N/A
|
|
|
Ecology
|
·
Regular site audit should be carried out throughout the construction
phase.
|
|
|
Fisheries
|
·
N/A
|
|
|
Cultural Heritage
|
·
A baseline condition survey and baseline vibration
impact assessment should be conducted for the non-building structures located
in close proximity by a qualified building surveyor or qualified structural
engineer during pre-construction stage of the proposed developments. These non-building structures include Grave
of Man Chung Luen and Grave of Mrs Man Leung.
·
A safe access route to these burial grounds should
be maintained for conducting any mitigation measures, in particular during
Ching Ming Festival and Chung Yeung Festival.
·
Archaeological Watching Brief is
recommended to be carried out in Mai Po Lung (South) Archaeologically
Sensitive Area (ASA) should works involve soil disturbance occurred (such as
site formation) during the construction phase.
·
Further archaeological survey at later stages after
land resumption but before site formation works is recommended for Mai Po ASA
and Pang Loon Tei ASA.
·
If antiquities or supposed antiquities
under the Antiquities and Monuments Ordinance (Cap. 53) are discovered, the
project proponent is required to inform AMO immediately for discussion of
appropriate mitigation measures to be agreed by AMO before implementation by
the project proponent to the satisfaction of AMO.
|
|
|
Hazard to Life
|
·
N/A
|
|
|
Landscape and Visual
|
·
Landscape and visual monitoring during construction
and 12-month establishment period during operation phase.
|
|
|
DP 2 - Construction and operation of STLMC Effluent Polishing Plant
with co-digestion function
|
|
|
Air Quality
|
·
Construction dust monitoring and regular site audit
during construction period
·
Odour monitoring (in term of H2S
concentration) at inlets and outlets of each DO unit in the first three years
upon operation of EPP
·
Odour patrol during the period of regular and ad hoc
maintenance or cleaning of the deodorization system of EPP
·
Odour Complaint Registration System for EPP
introduced in EM&A Programme
|
|
|
Noise
|
·
Construction noise monitoring and regular site audit during
construction period
·
Operation noise monitoring for fixed plants during
the testing and commissioning stage
|
|
|
Water Quality
|
·
Regular site audit during construction phase
·
Water quality monitoring should be conducted for the
first year of the normal operation of proposed EPP.
·
Follow-up water quality monitoring exercise should
be conducted after each emergency discharge to monitor the recovery of water
quality in the vicinity
|
|
|
Sewerage and Sewage Treatment Implications
|
·
N/A
|
|
|
Waste Management Implications
|
·
Regular audits and site inspections should be
carried out during construction phase
|
|
|
Land Contamination
|
·
If the recommended further works confirm remediation works is required, regular site audit during construction
phase is required to ensure the implementation of proposed mitigation
measures effectively
|
|
|
Landfill Gas
|
·
N/A
|
|
|
Ecology
|
·
Regular site audit should be carried out throughout the construction
phase
|
|
|
Fisheries
|
·
N/A
|
|
|
Cultural Heritage
|
·
Tin Tak Heroes Temple (MPL01) should be preserved by
record if direct impact of demolition is imminent. A comprehensive record through 3D scanning,
video recording and cartographic and photographic recording should be
conducted by the project proponent of subsequent developer(s) prior to any
construction works. A copy of these
records should be provided to AMO for record purpose and future use, such as
research, exhibition and educational programmes.
·
Archaeological Watching Brief is
recommended to be carried out in Mai Po Lung (South) Archaeologically
Sensitive Area should works involve soil disturbance occurred (such as site
formation) during the construction phase.
·
Further archaeological survey at later stages after
land resumption but before site formation works is recommended for Mai Po
ASA.
·
If antiquities or supposed antiquities
under the Antiquities and Monuments Ordinance (Cap. 53) are discovered, the
project proponent is required to inform AMO immediately for discussion of
appropriate mitigation measures to be agreed by AMO before implementation by
the project proponent to the satisfaction of AMO.
|
|
|
Hazard to Life
|
·
N/A
|
|
|
Landscape and Visual
|
·
Landscape and visual monitoring during construction
and 12-month establishment period during operation phase
|
|
|
DP3 - Construction and operation of STLMC Water Reclamation Plant
|
|
|
Air Quality
|
·
Construction dust monitoring and regular site audit
during construction period
|
|
|
Noise
|
·
Construction noise monitoring and regular site audit during
construction period
·
Operation noise monitoring for fixed plants during
the testing and commissioning stage
|
|
|
Water Quality
|
·
Regular site audit during construction phase
|
|
|
Sewerage and Sewage Treatment Implications
|
·
N/A
|
|
|
Waste Management Implications
|
·
Regular audits and site inspections should be
carried out during construction phase
|
|
|
Land Contamination
|
·
If the recommended further works confirm remediation works is
required, regular site audit during construction
phase is required to ensure the implementation of proposed mitigation
measures effectively
|
|
|
Landfill Gas
|
·
N/A
|
|
|
Ecology
|
·
Regular site audit should be carried out throughout the construction
phase
|
|
|
Fisheries
|
·
N/A
|
|
|
Cultural Heritage
|
·
If antiquities or supposed antiquities
under the Antiquities and Monuments Ordinance (Cap. 53) are discovered, the
project proponent is required to inform AMO immediately for discussion of
appropriate mitigation measures to be agreed by AMO before implementation by
the project proponent to the satisfaction of AMO.
|
|
|
Hazard to Life
|
·
N/A
|
|
|
Landscape and Visual
|
·
Landscape and visual monitoring during construction and
12-month establishment period during operation phase
|
|
|
DP 6 - Revitalisation works (i.e. river training, diversion works) for
San Tin Eastern Main Drainage Channel are located less than 300m from
Conservation Area
|
|
|
Air Quality
|
·
Construction dust monitoring and regular site audit
during construction period
|
|
|
Noise
|
·
Construction noise monitoring and regular site audit during
construction period
|
|
|
Water Quality
|
·
Water quality monitoring and regular site audit
during construction phase
|
|
|
Sewerage and Sewage Treatment Implications
|
·
N/A
|
|
|
Waste Management Implications
|
·
Regular audits and site inspections should be
carried out during construction phase
|
|
|
Land Contamination
|
·
If the recommended further works confirm remediation works is
required, regular site audit during construction
phase is required to ensure the implementation of proposed mitigation
measures effectively
|
|
|
Landfill Gas
|
·
N/A
|
|
|
Ecology
|
·
Regular site audit should be carried out throughout the construction
phase
|
|
|
Fisheries
|
·
N/A
|
|
|
Cultural Heritage
|
·
If antiquities or supposed antiquities
under the Antiquities and Monuments Ordinance (Cap. 53) are discovered, the
project proponent is required to inform AMO immediately for discussion of
appropriate mitigation measures to be agreed by AMO before implementation by
the project proponent to the satisfaction of AMO.
|
|
|
Hazard to Life
|
·
N/A
|
|
|
Landscape and Visual
|
·
Landscape and visual monitoring during construction
and 12-month establishment period during operation phase
|
|
|
DP 7 - Recreational development for proposed Sites O.1.1, O.1.2, and
O.1.3 (as open space) encroach into Deep Bay Buffer Zone 2
|
|
|
Air Quality
|
·
Construction dust monitoring and regular site audit
during construction period
|
|
|
Noise
|
·
Construction noise monitoring and regular site audit during
construction period
|
|
|
Water Quality
|
·
Water quality monitoring and regular site audit
during construction phase
|
|
|
Sewerage and Sewage Treatment Implications
|
·
N/A
|
|
|
Waste Management Implications
|
·
Regular audits and site inspections should be
carried out during construction phase
|
|
|
Land Contamination
|
·
If the recommended further works confirm remediation works is
required, regular site audit during construction
phase is required to ensure the implementation of proposed mitigation
measures effectively
|
|
|
Landfill Gas
|
·
N/A
|
|
|
Ecology
|
·
Regular site audit should be carried out throughout the construction
phase at O.1.3
·
Encroachment into the core area of trees at MPLV
egretry should be strictly avoided during the construction phase at O.1.3
|
|
|
Fisheries
|
·
N/A
|
|
|
Cultural Heritage
|
·
If antiquities or supposed antiquities
under the Antiquities and Monuments Ordinance (Cap. 53) are discovered, the
project proponent is required to inform AMO immediately for discussion of
appropriate mitigation measures to be agreed by AMO before implementation by
the project proponent to the satisfaction of AMO.
|
|
|
Hazard to Life
|
·
N/A
|
|
|
Landscape and Visual
|
·
Landscape and visual monitoring during construction
and 12-month establishment period during operation phase
|
|