The assessments presented in the preceding sections
have predicted that the implementation of the Project is not expected to give
rise to adverse environmental impacts with the implementation of good
construction site practices and mitigation measures. A focused EM&A programme
is considered appropriate, however, to ensure that the proposed mitigation
measures are effectively implemented and the quality of the surrounding
environment is not prejudiced. This Section presents the scope of the
EM&A requirements.
A summary of the requirements for each of the
environmental parameters is detailed in Table 9.1.
Table 9.1 Summary of EM&A Requirements
|
Parameters |
Construction Phase (a) |
Operation Phase (a) |
|
Cultural
Heritage |
M + SA |
SA |
|
Landscape and
Visual |
M + SA |
M |
|
Air Quality |
SA |
- |
|
Noise |
M + SA |
M(b) |
|
Water Quality |
SA |
- |
|
Waste |
SA |
- |
|
Note: (a)
M = monitoring, SA = site audit (b)
Monitoring will be required for outdoor events only and
will be implemented through contract requirement for the event organisers. |
||
A detailed EM&A Manual has been prepared for this
Project as part of the EIA study. The following
sections provide a summary of the need for monitoring and auditing of the
individual environmental aspects. In
accordance with the requirements of the EIA Study Brief, an Implementation
Schedule of the environmental mitigation measures recommended in the EIA study
has been prepared in the form of a checklist.
The Implementation Schedule is presented Annex E.
9.3.1
Detailed Design Stage
Prior to construction commencement, the following
works will be conducted:
·
Comprehensive
survey, impact assessment and protection schedule of historic features of
monuments;
·
Archival
recording;
·
Addition
and alteration (A&A) works proposal submissions;
·
Restoration
proposal of historic building and structures;
·
Detailed
structural assessment;
·
Archaeological
investigation (No EM&A is
required at the archaeological potential area of the Garage and the Married
Inspectors’ Quarters and Deputy Superintendent’s House); and
·
Detailed
Heritage Operation Strategies and Manuals.
Details of the above works are presented in Section 3.9 and Section 3 of the EM&A Manual.
9.3.2
Construction
Prior to commencement of the construction
works, a baseline condition survey and baseline vibration impact has been
recommended to be conducted by a specialist covering the existing historic
buildings and structures in the CPS Site, the granite walls at Old Bailey
Street and the Proposed Grade 3 Historic building (No. 20 Hollywood Road)
outside CPS to define the vibration control limits and recommend a vibration
monitoring proposal for the concerned historic buildings and structures in and
outside the CPS Site for AMO’s prior approval.
If the evaluated and/or measured vibrations have been
found to exceed the allowable values or if damage to either structural or
non-structural elements of the historic buildings has been identified, the
construction work should be stopped and the construction method and appropriate
mitigation measures should be the reviewed and submitted to the AMO for
approval.
For the built
heritage, the following works will be conducted prior to the commencement of
site works:
·
A
detailed proposal of the regular audit for cultural heritage such as
methodology (e.g. performance and monitoring indicators, control tools,
frequency of the audit, etc) and the conservation professionals to be engaged;
and
·
Staff
training for the on-site staffs, contractors, subcontractors and workers of the
project to ensure their full understanding of the approved protection schedule
of historical features and the work methodologies for repair and restoration
works to the historical features, character defining elements, historical
buildings and structures in the Site, and their respective responsibilities in
the implementation of the environmental protection measures.
During the course of works, the following
works will be carried out to the satisfaction of the AMO:
·
Regular
site audit for cultural heritage to investigate the site practice of the work
contractors and the compliance and effectiveness of the approved mitigation
measures and work methodologies, and to report the findings to the authorities;
·
Archival
recording during the course of works and submission of the archival records to
AMO after the completion of the works.
9.3.3
Operation
Regular audit is recommended for checking the compl
The management team of the CPS Ltd. shall ensure the
audit to be carried out by an experience building conservation expert to
investigate the site practice and work methodologies of the work contractors,
the tenants and any other stakeholders with respect of conservation works,
mitigations for cultural heritage, and any related works.
At present no operational
phase EM&A for archaeological resources and built heritage outside the CPS
Site is considered necessary.
Monthly inspections of affected trees by an
experienced and appropriately trained arborist or horticulturist using Form 1 –
Tree Group Inspection Form and Form 2 – Tree Risk Assessment Form developed by Development
Bureau (http://www.trees.gov.hk/en/doc/TRAGuideline_July2010version_combine.pdf)
or a form designed by a tree expert and approved by Tree Management
Office. All irregularities that deviate
from the recommended tree protection measures, or could impose deleterious
impacts on the protected trees, must be reported to the authorised person or the tree expert within two days.
Implementation of the mitigation measures for
landscape and visual resources recommended in the EIA Report will be monitored through the
site inspection and audit programme.
A detailed specifications and methods statement could
be drafted and included in the soft landscape maintenance contract to
circumscribe the scope and to ascertain the quality of the work. Following this, quarterly inspections of affected and newly planted
trees should be undertaken by an experienced and appropriately trained arborist or horticulturist for a period of 12 months. Hard landscape maintenance will be covered by
the Conservation Management Plan and Operational Phase Manual, as detailed in Sections 3.7.1 and 3.7.4 of the EIA Report.
Adverse fugitive dust impact is not anticipated
during the construction period, dust monitoring is considered not
necessary. However, monthly site audits
are recommended to ensure that appropriate dust control measures are properly
implemented and good construction site practices are adopted throughout the
construction period.
Noise monitoring is recommended during the construction
phase to ensure compliance with the noise criterion at the NSRs. Weekly noise monitoring will be undertaken at
the representative NSRs N2 Ho Fook
Building and N5 Chancery House.
Considering the nature of the Project, real-time reporting monitoring
data was not proposed. However, the
monitoring data shall be uploaded to the dedicated internet website as soon as
they are ready. Monthly site audits will
be conducted to ensure that the recommended mitigation measures are properly
implemented during the construction stage.
Monitoring
will be required for outdoor events only and will be specified in the contract
document for the event organisers for implementation.
Monthly site audits will be
carried out during the construction phase to monitor the environmental
performance of the Project and to enable prompt actions to rectify any
malpractice which may give rise to water pollution problem. The site audit will also ensure that the
recommended mitigation measures are properly implemented during the
construction stage.
It is recommended that monthly site audits of the
waste management practices be carried out during the construction phases to determine
if wastes are being managed in accordance with the recommended good
construction site practices. The audits
will examine all aspects of waste management including waste generation,
storage, recycling, transport and disposal.