1
INTRODUCTION
1.1
Purpose of the Manual
1.1.1
The purpose of this
Environmental Monitoring and Audit (EM&A) Manual is to guide the set up of
an EM&A programme to ensure compliance with the Environmental Impact
Assessment (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.
This Manual outlines the monitoring and audit programme for the
construction and operation of the proposed Wan Chai Development Phase II
(WDII). It aims to provide systematic
procedures for monitoring, auditing and minimising environmental impacts
associated with construction works and operational activities.
1.1.2
Hong Kong environmental regulations and the Hong Kong Planning Standards and
Guidelines have served as environmental standards and guidelines in the
preparation of this Manual. In addition,
the EM&A Manual has been prepared in accordance with the requirements
stipulated in Annex 21 of the Technical Memorandum on the EIA Process
(EIAO-TM).
1.1.3
This Manual contains the
following information:
·
responsibilities of the
Contractor, the Engineer or Engineer’s Representative (ER), Environmental Team
(ET), and the Independent Checker (Environment) (IC(E)) with respect to the
environmental monitoring and audit requirements during the course of the
project;
·
project organisation for the project;
·
the basis for, and description of the broad approach
underlying the EM&A programme;
·
requirements with respect to the construction programme
(as stated in Appendix 2.1 of the EIA Report) schedule and the necessary
environmental monitoring and audit programme to track the varying environmental
impact;
·
details of the methodologies to be adopted,
including all field laboratories and analytical procedures, and details on
quality assurance and quality control programme;
·
the rationale on which the environmental monitoring
data will be evaluated and interpreted;
·
definition of Action and Limit levels;
·
establishment of Event and Action plans;
·
requirements for reviewing pollution sources and
working procedures required in the event of non-compliance with the
environmental criteria and complaints;
·
requirements for presentation of environmental
monitoring and audit data and appropriate reporting procedures; and
·
requirements for review of
EIA predictions and the effectiveness of the mitigation measures /
environmental management systems and the EM&A programme.
1.1.4
For the purpose of this manual,
the ET leader, who shall be responsible for and in charge of the ET, shall
refer to the person delegated the role of executing the EM&A requirements.
1.2
Project Description
Project Background
1.2.1
The Central and Wan Chai
Reclamation Feasibility Study proposed development to be carried out in five
stages. Central Reclamation Phase I, for
accommodating the Hong Kong Central Station of the Airport Railway, was
completed in June 1998. Central
Reclamation Phase II, at the previous Tamar Basin, was
completed in September 1997. Wan Chai
Reclamation Phase I, for the extension to the Hong Kong Convention and
Exhibition Centre (HKCEC), was completed in July 1997. Detailed design for Central Reclamation Phase
III (CRIII) is currently in progress.
1.2.2
The Wan Chai Development Phase
II (WDII) is the fifth phase in the implementation of the Central and Wan Chai
Reclamation, following Central Reclamation Phases I, II and III and Wan Chai
Reclamation Phase I.
1.2.3
The main objective of the
Project is, now, not to reclaim land for development, but to provide land for
key transport infrastructure and facilities.
In addition, the Project will also include the reprovisioning of any
existing waterfront facilities affected by the Project as well as any necessary
measures to improve the resultant shoreline so that an attractive waterfront
promenade would be created for the enjoyment of the public.
1.2.4
The key transport infrastructure
for which land needs to be provided comprises the Central-Wan Chai Bypass
(CWB), the Island Eastern Corridor Link (IECL) and the associated connections
to the existing road network, the proposed North Hong Kong Island Line (NIL)
and the proposed fourth rail harbour crossing.
Site Location and Study Area
1.2.5
The WDII Study Area, as shown
in Figure 1.1, is demarcated by Hing Fat Street
to the east, Victoria Park
Road and Gloucester Road
to the south and Fenwick Pier
Street to the west.
1.2.6
The site area comprises urban
development on existing reclaimed land along the Wan Chai and Causeway Bay shoreline,
together with existing seabed along the shoreline that will be reclaimed under
the Project. Major land uses
within the study area include the HKCEC Extension, the Wan Chai ferry piers,
the Wan Chai Public Cargo Working Area (PCWA), the Royal Hong Kong Yacht Club
(RHKYC), the Police Officers Club and the Causeway Bay Typhoon Shelter.
1.2.7
New land will be formed along
the Wan Chai and Causeway Bay shoreline, primarily for the construction of key infrastructure and
to provide an attractive waterfront with a new public promenade. A total reclamation area of some 28.5 ha is
envisaged, with the newly reclaimed land forming a narrow strip of land along
the existing Wan Chai and Causeway Bay shorelines, from the interface with the CRIII project west of the
HKCEC Extension to the east of the Causeway Bay Typhoon Shelter.
Project Scope
1.2.8
The scope of the Project
comprises:
(i) Land formation for key transport infrastructure and facilities,
including:
·
the CWB;
·
the IECL;
·
the NIL;
·
the necessary ground level road connections to
facilitate through traffic from Central to Wan Chai;
·
a possible fourth cross harbour rail link;
·
a Government helipad; and
·
the waterfront promenade and other essential
facilities; land is also required for the associated / supporting facilities
for the waterfront promenade.
(ii) Reprovisioning / protection of the existing
facilities and structures affected by the land formation works mentioned above.
(iii) Extension, modification, reprovisioning or
protection of existing storm water drainage outfalls, sewerage outfalls, Wan
Chai East Screening Plant and watermains affected by the revised land use and
land formation works mentioned above.
(iv) Upgrading of hinterland storm water drainage
system and sewerage system, which would be rendered insufficient by the land
formation works mentioned above.
(v) Provision of the ground level roads, road
bridges, footbridges, necessary transport facilities and the associated utility
services.
(vi) Construction of the new waterfront
promenade, landscape works and the associated utility services.
Construction Programme
1.2.9
The construction of the Project
will take place from March 2004 to December 2007. Together with CRIII, the Project will provide
land for CWB & IECL. Both CRIII and
CWB & IECL will be constructed concurrently with the Project (Table 1.1).
Table 1.1 Projects
that may be Undertaken Simultaneously with the WDII Project
Project
|
Year of Construction
|
Nature of Project
|
Remark
|
Wan Chai Development Phase II (WDII)
|
March 2004 to
February 2010
|
Roadworks and infrastructural
developments
|
Construction of the CWB within WDII will
be entrusted to a WDII contract
|
Central Reclamation Phase III (CRIII)
|
August 2002 to
March 2007
|
Roadworks and infrastructural
developments
|
Construction of the CWB within CRIII will
be entrusted to a CRIII contract
|
Causeway Bay Flyover
|
May 2003 to
February 2006
|
Roadworks
|
-
|
Related Projects
1.2.10
The following projects are
related to the WDII project:
(i)
The CRIII project, comprising reclamation along the
Central waterfront for transport infrastructure needs (including CWB and NIL)
and basic land use requirements.
(ii) The CWB and IECL project, for the
construction of the Trunk Road (which comprises the CWB and the IECL) from
Rumsey Street Flyover Extension in Central to the Island Eastern Corridor in Causeway Bay. The construction of the CWB tunnel through
WDII will be entrusted to the WDII project.
1.3
Environmental Monitoring and Audit Requirements
1.3.1
The following sub-sections
summarise the EM&A requirements recommended in the EIA Report.
Air Quality
Impact
Construction Phase
1.3.2
The construction work will
inevitably lead to dust (TSP) emissions, mainly from excavation, truck haulage
and material handling. It is predicted
that the dust generated will exceed the hourly and daily criteria of 500 mg m-3 and 260 mg m-3,
respectively, at ASRs from Central to Causeway Bay.
1.3.3
Mitigation measures, including
vehicle speed limit and a watering programme within the site, have been
proposed and presented in the EIA Report.
With implementation of the proposed dust suppression measures, good site
practices and comprehensive dust monitoring and audit, the TSP levels at all
ASRs will comply with the dust criteria.
Dust monitoring requirements are recommended in Section 2 of this
EM&A Manual to ensure the efficacy of the control measures.
Operational Phase
1.3.4
As presented in Section 3.7 of
the EIA Report, there will be no exceedance of AQOs at the sensitive
receivers. No mitigation measures or
environmental monitoring are considered necessary during the operational phase
of the WDII.
Noise Impact
Construction
Phase
1.3.5
Construction noise impacts from
this Project, in addition to the concurrent construction tasks of other
projects such as Causeway Bay Flyover, CRIII and CWB & IECL projects, are
predicted at the NSRs identified in this EIA.
Appropriate mitigation measures, including movable noise barriers and
reducing the percentage of on-time operation of the powered mechanical
equipment, are required in order to alleviate the impacts to meet the EIAO-TM
criteria. Noise monitoring during
construction phase will have to be carried out to ensure that such mitigation
measures have been implemented properly.
Details are provided in Section 3 of this EM&A Manual.
Operational
Phase
1.3.6
According to the assessment
results, no adverse impact from the Project is expected on the representative
NSRs. Therefore, EM&A for
operational noise impact is not required.
Water Quality Impact
Construction
Phase
1.3.7
A water quality monitoring and
audit programme will be conducted during dredging and filling operations to
verify whether or not impact predictions are representative, and to ensure that
the dredging and filling operations do not result in unacceptable impacts. When monitoring shows unacceptable water
quality impact, appropriate mitigation measures, such as changes in the
operation of marine works, will be introduced.
1.3.8
Water quality monitoring should
be carried out at selected potentially affected sensitive receivers, to assess
whether or not impacts follow the predictions made in this EIA. Section 4 of this EM&A Manual includes
site-specific monitoring and auditing protocols for baseline and all stages of
the dredging operations. Such protocols
include but are not limited to the locations of monitoring stations, parameters
and frequencies for monitoring, monitoring equipment, data management
procedures, and reporting of monitoring results.
1.3.9
Environmental audit
specifications should be developed for all phases of the works, including
procedures to ensure compliance with mitigation measures, environmental quality
performance limits, and procedures for reviewing results and auditing
compliance with specified performance limits.
Operational
Phase
1.3.10
As adverse water quality impact
will not be generated from the operation of the WDII, operational water quality
monitoring and audit is not considered necessary.
Waste Management
1.3.11
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 EPD’s good waste management practices, and regulations and
requirements. The mitigation measures
recommended in Section 6.7 of the EIA Report, including special procedures in handling
contaminated sediment during disposal and transportation, good site management
and reuse and recycling of construction and demolition material, should form
the basis of the site Waste Management Plan to be developed by the Contractor
at the construction stage. These
measures, including special handling procedures in dredged marine sediment transportation
and disposal, good site practices and waste reduction measures, reuse and
recycling of construction and demolition materials, are summarised in Appendix
A of this Manual.
1.3.12
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 quarterly thereafter.
Details are presented in Section 5 of this Manual.
Land Contamination
1.3.13
The requirements for EM&A
with respect to land contamination, if necessary, should be determined upon
completion of all relevant site investigation works.
Terrestrial
Ecology
1.3.14
As no specific mitigation
measures will be required for the potential terrestrial ecological impacts to
preserve ecological resources in the study area, terrestrial ecological
monitoring and auditing will not be required.
Marine Ecology
1.3.15
As no specific mitigation
measures will be required for the potential marine ecological impacts to preserve
ecological resources in the study area, marine ecological monitoring and
auditing will not be required.
Landscape and
Visual Impact
Construction
Phase
1.3.16
Construction activities would
give rise to landscape and visual impacts varying from slight to substantial
significance.
1.3.17
The landscape and visual
mitigation measures for the construction phase are described in Section 10 of
the EIA Report. The measures are on-site
management measures to be undertaken by the contractor. Monitoring of the Contractor to ensure that
the measures are carried out properly should be undertaken by resident site
staff of the Territory Development Department (TDD).
Operational Phase
1.3.18
The operation of WDII would
give rise to landscape and visual impacts of varying from moderate negative to
moderate beneficial.
1.3.19
The proposed landscape and
visual mitigation measures are described in Section 10 of the EIA Report. The measures are design measures to be
incorporated in the detailed planning and design of the reclamation,
infrastructure and open space works.
Landscape mitigation measures would be subsequently managed and
maintained according to WBTC 18/94, subject to possible amendment if a Harbour
Waterfront Authority is created.
Biogas
1.3.20
An assessment has been made of
the potential biogas risk associated with the reclamation at the western and
eastern corners of the Causeway Bay Typhoon Shelter where mud will be left in
place. As sensitive ‘at risk’ rooms may
be present at the proposed developments at the western and eastern corners of
the typhoon shelter, both at ground level and below ground, a precautionary
principle should be applied. It is,
therefore, recommended that monitoring of gas emission rates should be
undertaken at the proposed development areas in the immediate post-reclamation
period to determine actual rates of methane gas emissions. The results of the gas monitoring should be
reviewed to determine the extent of gas protection measures to be incorporated
in the detailed design of the proposed developments. Details of the recommendations for methane
gas monitoring are given in Section 6 of this Manual.
1.4
Project Organisation
1.4.1
The proposed project
organisation and lines of communication with respect to environmental
protection works are shown in Figure 1.2.
1.4.2
The leader of the Environmental
Team shall be an independent party from the Contractor and have relevant
professional qualifications, or have sufficient relevant EM&A experience
subject to approval of the Engineer’s Representative (ER) and the EPD.
1.4.3
The responsibility of
respective parties are:
The
Contractor:
·
employ an Environmental Team
(ET) to undertake monitoring, laboratory analysis and reporting of
environmental monitoring and audit;
·
provide assistance to ET in carrying out monitoring;
·
submit proposals on mitigation measures in case of
exceedances of Action and Limit levels in accordance with the Event and Action
Plans;
·
implement measures to reduce impact where Action and
Limit levels are exceeded; and
·
adhere to the procedures for
carrying out complaint investigation in accordance with Section 8.3.
Environmental
Team:
·
monitor various environmental parameters as required
in the EM&A Manual;
·
analyse the environmental monitoring and audit data
and review the success of EM&A programme to cost-effectively confirm the
adequacy of mitigatory measures implemented and the validity of the EIA
predictions and to identify any adverse environmental impacts arising;
·
carry out site inspection to investigate and audit
the Contractors' site practice, equipment and work methodologies with respect
to pollution control and environmental mitigation, and effect proactive action
to pre-empt problems;
·
audit and prepare audit reports on the environmental
monitoring data and site environmental conditions;
·
report on the environmental monitoring and audit
results to the IC(E), Contractor, the ER and EPD or its delegated
representative;
·
recommend suitable mitigation measures to the
Contractor in the case of exceedance of Action and Limit levels in accordance
with the Event and Action Plans; and
·
adhere to the procedures for carrying out complaint
investigation in accordance with Section 8.3.
Engineer
or Engineer’s Representative:
·
supervise the Contractor’s
activities and ensure that the requirements in the EM&A Manual are fully
complied with;
·
inform the Contractor when
action is required to reduce impacts in accordance with the Event and Action
Plans;
·
employ an IC(E) to audit the
results of the EM&A works carried out by the ET; and
·
adhere to the procedures for carrying out complaint investigation in
accordance with Section 8.3.
Independent
Checker (Environment):
·
review the EM&A works
performed by the ET (at not less than monthly intervals);
·
audit the monitoring activities and results (at not
less than monthly intervals);
·
report the audit results to the ER and EPD in
parallel;
·
review the EM&A reports
(monthly and quarterly summary reports) submitted by the ET;
·
review the proposal on mitigation measures submitted
by the Contractor in accordance with the Event and Action Plans; and
·
adhere to the procedures for carrying out complaint
investigation in accordance with Section 8.3.
1.4.4
Sufficient and suitably
qualified professional and technical staff shall be employed by the respective
parties to ensure full compliance with their duties and responsibilities, as
required under the EM&A programme for the duration of the Project.