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Kowloon
Southern Link – KDB300 and KDB400
Tunnels, Jordan Road to Nam Cheong
Station Overrun |
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Contract
Specific EM&A Manual (Version
7) July 2007 Report no: 01273R0017 |
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47th Floor, Hopewell Centre, 183 Queens Road East, Wanchai, Hong Kong Tel: +852 2911 2233
Fax: +852 2805 5028 www.hyderconsulting.com
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Kowloon
Southern Link – KDB300 and KDB400
Tunnels, Jordan Road to Nam Cheong
Station Overrun |
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Contract Specific EM&A Manual |
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Author: |
Various |
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Checker: |
Sarah James |
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Approver: |
Adi Lee |
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Report no: |
01273R0017 |
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Date: |
July 2007 |
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1 Introduction.......................................................................................................................... 1
2 The Purposes
of the Manual........................................................................................... 1
3 Objective of
the EM&A Programme.............................................................................. 2
4 Organisation
for the Environmental Monitoring and Audit Works.................. 3
5 Environmental
Monitoring and Audit Requirements............................................ 6
5.1 General........................................................................................................................... 6
5.2 Air Quality........................................................................................................................ 8
5.3 Airborne Construction Noise.......................................................................................... 17
5.4 Groundwater Quality..................................................................................................... 25
6 ENVIRONMENTAL
SITE AUDIT..................................................................................... 29
6.1 Site Inspection............................................................................................................... 29
6.2 Compliance with Legal and Contractual
Requirement.................................................... 30
6.3 Environmental Complaints............................................................................................. 30
6.4 Environmental Mitigation Measures............................................................................... 31
7 Reporting............................................................................................................................. 49
7.1 General......................................................................................................................... 49
7.2 Electronic Environmental Management System
(EEMS)................................................ 49
7.3 Baseline Monitoring Report........................................................................................... 49
7.4 Monthly EM&A Reports................................................................................................. 50
7.5 Data Keeping................................................................................................................ 54
7.6 Interim Notification of Environmental Quality
Limit Exceedances..................................... 54
Table 5-1 Proposed TSP
Monitoring Locations 11
Table 5-2 Proposed Action
and Limit Levels for Air Quality Monitoring 15
Table 5-3 Proposed Event/
Action Plan for Air Quality Monitoring 17
Table 5-4 Proposed Noise Monitoring Locations 19
Table 5-5 Targeted Configuration of the Continuous Noise
Monitoring System 22
Table 5-6 Summary of Noise Parameter of the Continuous
Noise Monitoring 23
Table 5-7 Proposed Action and Limit Levels for Noise
Monitoring 23
Table 5-8 Proposed Event and Action Plan for Noise
Monitoring 24
Table 5-9 Baseline Groundwater Testing
Parameters 26
Table 5-10 Event and Action Plan for Groundwater
Monitoring 28
Table 6-11 Proposed Implementation Schedule of
Environmental Mitigation Measures 48
List of Appendices
Appendix A Construction Programme and Site
Boundary
Appendix B Project Organisation Chart
Appendix C Sample of Result Tables
Appendix D Documentation
Regarding the Suspension of 24-hr TSP Monitoring at AM5
Appendix E Flow Chart of Complaint Response Procedures
Appendix F Sample of Complaint Proforma
A
3.8km new underground railway line (thereafter called “Kowloon Southern Link” or
KSL) would be constructed to connect the
KCRC East Tsim Sha Tsui (TST)
Station to the West Rail (WR) Nam Cheong (NAC) Station, with its alignment
running under Salisbury Road, Canton Road and the West Kowloon Reclamation
area. It is expected that the KSL would improve the accessibility to and
lessen the traffic congestions at TST and West Kowloon districts. The civil
construction works for the KSL are split into three design-and-build contracts namely
KDB200, KDB300 and KDB400.
The
Kowloon Southern Link (KSL) project is a Category ‘A’ Designated Project (DP)
under Schedule 2 and Part 1 of the Environmental Impact Assessment Ordinance
(EIAO). Pursuant to the EIAO, the KCRC
applied for an Environmental Permit (EP) with the submission of the
Environmental Impact Assessment (EIA) report “Kowloon Southern Link, January
2005” (Register No. AEIAR-083/2005). Along
with the EIA report submission, KCRC also prepared the Environmental Monitoring
and Audit Manual (the Project-wide EM&A Manual) which outlines the
recommended EM&A requirements and programme for the entire alignment of
KSL. The Environmental Permit (EP)
(Permit No. EP-215/2005/B) to construct and operate the KSL was issued to KCRC
on 21 March 2006.
KCRC has awarded the contracts KDB300 and KDB400 (i.e. Jordan Road to Nam Cheong Station Overrun) to China State Construction Engineering Corporation (CSCE) in August 2005. CSCE has appointed Hyder Consulting Limited (HCL) as the Contractor’s Environmental Team (ET) for these two contracts during the construction period. The Contracts commenced in August 2005 and the total construction period is approximately 40 months. Pursuant to condition 1.11 of FEP-02.215/2005/A and FEP-03/215/2005/A, the notified commencement date of construction was on 28 November 2005.
This
Environmental Monitoring and Audit (EM&A) Manual outlines the monitoring
and audit programme to be undertaken during the construction of the KDB300 and
KDB400. It aims to provide systematic
procedures for monitoring, auditing and minimising of the environmental impacts
associated with the construction activities.
The purposes of this Manual are to:
· guide the establishment of an EM&A programme;
· ensure the compliance with the recommendations as stated in EIA; and
· identify any need for additional mitigation measures or remedial action.
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 recommendations of the EIA report have been taken into account while preparing this Manual.
This Manual contains the following information:
· Responsibilities of the Contractor (i.e. CSCE), Engineer’s Representative (ER), Independent Environmental Checker (IEC) and Environmental Team (ET) with respect to the environmental monitoring and audit requirements during construction;
· Information on project organization and programming of construction activities for the project;
· Requirements with respect to the construction schedule and the necessary environmental monitoring and audit programme to track the varying environmental impacts;
· Details of the monitoring methodologies, including all field works, laboratory analytical procedures, quality assurance and quality control;
· Definition of Action and Limit levels;
· Establishment of Event and Action plans;
· Requirements for reviewing pollution sources and working procedures in the event of non-compliance of the environmental criteria and complaints;
· Requirements for reviewing the effectiveness of the recommended mitigation measures;
· Requirements of the Environmental Management Plan (EMP) and other deliverables for the Contractors; and
· Requirements of presentation of EM&A data and appropriate reporting procedures.
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.
The main objectives of the EM&A programme are:
· to provide a database against which any short or long term environmental impacts of the project can be determined;
· to provide an early indication shall any of the environmental control measures or practices fail to achieve the acceptable standards;
· to monitor the performance of the project and the effectiveness of mitigation measures;
· to verify the environmental impacts predicted in the EIA Study;
· to determine project compliance with regulatory requirements, standards and government policies;
· to take remedial action if unexpected problems or unacceptable impacts arise; and
· to provide data against which environmental audits may be undertaken.
The roles and responsibilities of the various parties involved in the construction phase EM&A process outlined above are further expanded in the following sections. The organisation chart showing the line of authority and communication is presented in Appendix B.
The duties and responsibilities of respective parties are as follows:
KCRC Environmental
Manger (KCRC-EM)
KCRC Environmental Manager shall be responsible for:
· supervising the EM&A programme, its members and the timely production and quality of outputs;
· managing IEC and providing guidance to KCRC personnel in their dealings with the CSCE’s Environmental Team;
·
ensuring achieving the agreed objectives and deadlines
as set out in this Manual; and
·
ensuring the quality of deliverables.
The Contractor (CSCE):
· 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.
Contractor’s Environmental Manager (EM):
The EM shall be responsible for:
· Supervise the EM&A Programme, its members and the timely production and quality of outputs;
· Provide guidance to CSCE personnel in dealing with the environmental issues;
· Ensure achieving the agreed objectives and deadlines as set out in this Manual; and
· Ensure the quality of deliverables.
Contractor’s Environmental Team (ET):
The ET shall be headed by an ET
Leader. The ET Leader is a person who has at least 7 years of experience in
environmental monitoring and auditing (EM&A) or environmental management.
The ET Leader shall keep a contemporaneous log-book of each and every instance
or circumstance or change of circumstances, which may affect the compliance with
the recommendations of the EIA Report and the latest EPs for KDB300 and
KDB400. The ET shall carry out the
following duties:
· monitoring various environmental parameters as required in the EM&A Manual;
· analysing 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;
· carrying 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;
· auditing and preparing audit reports on the environmental monitoring data and site environmental conditions;
· reporting the environmental monitoring and audit results to the IEC, Contractor, ER and EPD or its delegated representative;
· recommending 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
· adhering to the procedures for carrying out complaint investigation.
Engineer’s Representative (ER):
· supervise the Contractor’s activities and ensure that the requirements in the EM&A Manual are fully complied with;
· monitor the Contractor’s compliance with Contract Specifications, including the effective implementation and operation of the environmental mitigation measures;
· instruct the Contractor to follow the agreed protocols or those in the Contract Specifications in the event of exceedances or complaints;
· comply with the agreed Event and Action Plans in the event of any exceedance; and
· adhere to the procedures for carrying out complaint investigation.
Independent Environmental Checker (IEC):
The IEC is a
person who has at least 7 years of experience in EM&A or environmental
management. The responsibilities of the
IEC include:
· verifying the environmental acceptability of permanent and temporary works, relevant design plans and submissions as per the EPs;
·
notifying EPD
within one working day of receipt of notification from the ET Leader of each
and every occurrence, change of circumstances or non-compliance with the EIA
Report and the EPs, which might affect the monitoring or control of adverse
environmental impacts from the Project;
·
verifying the
ET Leader’s log book;
· reviewing the EM&A works performed by the ET (at not less than monthly intervals);
· auditing the monitoring activities and results (at not less than monthly intervals);
·
arranging and
conduct monthly site inspections at the different works area along KSL
alignment;
·
reviewing the
programme of work to anticipate any potential environmental impacts that may
arise;
·
ensuring the
impact monitoring is conducted at the correct locations at the correct
frequency as identified in this Manual;
·
checking the
mitigation measures that have been recommended in the EIA and this Manual, and
ensure they are properly implemented in a timely manner, when necessary; and
·
reporting the
findings of site inspections and other environmental performance reviews to EM
and EPD.
· reviewing the proposal on mitigation measures submitted by the Contractor in accordance with the Event and Action Plans; and
· adhering to the procedures for carrying out complaint investigation.
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 Contract.
During the KDB300 and KDB400 works, air quality, construction noise, recharge groundwater quality, disposal of marine deposits and landscape & visual impact shall be subject to EM&A, with environmental monitoring being undertaken for air quality, construction noise, recharge groundwater quality as per the EIA.
The monitoring of the effectiveness of the mitigation measures shall be achieved through the environmental monitoring programme as well as through site inspections. The inspections shall include within their scope, mechanisms to review and assess the Contractor’ environmental performance, ensuring that the recommended mitigation measures have been properly implemented, and that the timely resolution of received complaints are managed and controlled in a manner consistent with the recommendations of the EIA Report.
The environmental monitoring work throughout the KDB300 and KDB400 contract period shall be carried out by the ET. Monitoring works shall comprise of quantitative assessment of physical parameters such as air quality impacts; local impacts of groundwater system from the recharge operation and noise impacts forms an important part of the whole monitoring programme. Monitoring programme shall be conducted at chosen representative sensitive receivers and selected monitoring locations in the vicinity of and within the Works site.
Action and Limit (A/L) Levels are defined levels of impact recorded by the environmental monitoring activities which represent levels at which a prescribed response is required. These Levels are quantitatively defined later in the relevant sections of this manual and described in principle below:
· Action Limits: beyond which there is a clear indication of a deteriorating ambient environment for which appropriate remedial actions are likely to be necessary to prevent environmental quality from falling outside the Limit Levels, which would be unacceptable; and
· Limit Levels: statutory and/or agreed contract limits stipulated in the relevant pollution control ordinances, HKPSG or Environmental Quality Objectives established by the EPD. If these are exceeded, works should not proceed without appropriate remedial action, including a critical review of plant and working methods.
The purpose of the Event and Action Plans (EAPs) is to provide, in association with the monitoring and audit activities, procedures for ensuring that if any significant environmental incident (either accidental or through inadequate implementation of mitigation measures on the part of the Contractor) does occur, the cause shall be quickly identified and remedied, and the risk of a similar event recurring is reduced. This also applies to the exceedances of A/L criteria identified in the EM&A programme.
In addition, to monitoring noise, air and groundwater quality as a means of assessing the ongoing performance of the Contractor, the ET shall undertake regular site inspections and audits of on-site practices and procedures. The primary objective of the inspection and audit programme shall be to assess the effectiveness of the environmental controls established by the Contractor and the implementation of the environmental mitigation measures recommended in the EIA Report.
Whilst the audit and inspection programme shall undoubtedly complement the monitoring activity with regard to the effectiveness of dust suppression, noise attenuation measures and groundwater recharging operation, the criteria the audits are made reference shall be derived from the clauses within the Contract Specifications which seek to enforce the recommendations of the EIA Report and the established management systems.
The findings of site inspections and audits shall be made known to the Contractor at the time of the inspection to enable the rapid resolution of identified non-compliances. Non-compliances, and the corrective actions undertaken, shall also be reported in the monthly EM&A Reports.
Enquiries,
Complaints and Requests for Information
Enquiries, complaints and requests for information can be expected from a wide range of individuals and organisations including members of the public, Government departments, the press and television media and community groups.
All enquiries concerning the environmental effects of the construction works, irrespective of how they are received, shall be incepted in the Community Liaison Office established as per the EIA recommendation. The ET or the Coordination Manager of CSCE shall set up with agreement with ER and relevant parties procedures for the handling, investigation and storage of such information.
In all cases the complainant shall be notified of the findings, and audit procedures shall be put in place to minimise the change of reoccurrence of the problem.
Monthly
and final reports shall be prepared and certified by the ET and verified by the IEC. These
reports shall be submitted to ER and EPD. The monthly reports shall be prepared
and submitted to EPD within 10 working days after the end of the reporting month.
The ET shall continue to carry out environmental monitoring and site
inspections until the completion of the major construction works. The cessation of EM&A programme shall be
determined based on completion of construction activities, trends analysis of
the EM&A programme, no environmental complaint and prosecution and IEC's
endorsement.
Monitoring Parameters
Monitoring and audit of the Total Suspended
Particulate (TSP) levels shall be carried out by the ET to ensure that any
deteriorating air quality would be readily detected and timely actions taken to
rectify the situation.
1-hour and 24-hour TSP levels shall be
measured to indicate the impacts of construction dust. The TSP levels shall be measured using the
standard high volume sampling method for Total Suspended Particulates, Part 50
Chapter 1 Appendix B, Title 40 of the Code of Federal Regulations of the USEPA. Upon approval by ER, 1-hour TSP levels would
be measured by a direct reading instrument which is capable of producing
comparable results to that by the high volume sampling method to indicate short
event impacts.
All relevant data including temperature,
pressure, weather conditions, elapsed-time meter reading for the start and stop
of the sampler, identification and weight of the filter paper, and other
special phenomena and work progress of the concerned site etc. shall be
recorded down in details in a designated result table in a Personal Digital Assistant
(PDA). Appendix C shows a sample of the
result table.
Complaints
regarding the noise nuisance to the local residents of Charming Garden (AM5)
were received since March 2007. With
regard to the complaints, a number of measures to minimise the noise nuisance
from the operation of the HVAS to the residents were implemented. Upon further complaint from the residents in
early May 2007, the management office of Charming Garden have requested that
the operation of the air quality monitoring equipment be stopped after 2300
hours or removed from Charming Garden.
Alternative locations for 24-hr TSP monitoring within and outside
Charming Garden were then explored.
However, no suitable alternative location could be identified. With reference to the EIA report for KSL, only
short-term construction dust impact (i.e. exceedance of 1-hr TSP assessment
criterion) would be imposed to Charming Garden if no dust control measures such
as provision of regular watering is implemented. As such, suspension of 24-hr TSP monitoring at Charming Garden
(AM5) was proposed. Documentations
including the details of the measures implemented to minimise the noise
nuisance, considerations of alternatives locations, review of EIA report for
KSL and proposal of the suspension of 24-TSP monitoring at AM5 are given in
Appendix D.
Monitoring Equipment
For measuring TSP, a high volume sampler
(HVS) in compliance with the following specifications shall be used for
carrying out the 1-hr and 24-hr monitoring:
· 0.6 - 1.7 m3/min (20-60 SCFM) adjustable flow range;
· equipped with a timing/control device with +/- 5 minutes accuracy for 24 hours operation;
· installed with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
· capable of providing a minimum exposed area of 406 cm2 (63 in2);
· flow control accuracy: +/- 2.5% deviation over 24-hour sampling period;
· incorporated with an electronic mass flow rate controller or other equivalent devices;
· equipped with a flow recorder for continuous monitoring;
· provided with a peaked roof inlet;
· incorporated with a manometer;
· able to hold and seal the filter paper to the sampler housing at horizontal position;
· easy to change the filter; and
· capable of operating continuously for 24-hr period.
The ET shall be responsible for the
provision of the monitoring equipment. He shall ensure that sufficient number
of HVSs with an appropriate calibration kit be available for carrying out the
baseline, regular impacts monitoring and ad-hoc monitoring. The HVSs shall be
equipped with an electronic mass flow controller and be calibrated against a
traceable standard at regular intervals, in accordance with requirements stated
in the manufacturers operating manual and as described below. All the
equipment, calibration kit, filter papers, etc shall be clearly labelled.
The flow rate of each HVS with mass flow
controller shall be calibrated using an orifice calibrator. Initial calibration
of the dust monitoring equipment shall be conducted upon installation and prior
to commissioning. One point flow rate calibration shall be carried out every
two months. Five-point calibration shall be carried out every six months. The
flow-rate of the sampler before and after the sampling exercise with the filter
in position shall be verified to be constant and be recorded down on the data
sheet.
Should a direct reading instrument be
proposed to measure 1-hour TSP levels, the ET leader shall submit sufficient
information to ER to prove that the instrument is capable of achieving a
comparable result as that by the HVS.
The instrument shall also be calibrated regularly, and the 1-hr sampling
shall be determined periodically by HVS to check the validity and accuracy of
the results measured by the direct reading instrument.
The wind data from King’s Park
Meteorological Station of Hong Kong Observatory will be used. Alternatively, wind monitoring equipment shall be provided
and set up at conspicuous locations for logging wind speed and wind direction
near to the dust monitoring locations. For installation and operation of the
wind data monitoring equipment, the following points shall be observed:
· the wind sensors should be installed on masts at an elevated level 10 m above the ground, so that they are clear of obstructions or turbulence caused by building(s);
· the wind data should be captured by a data logger and to be downloaded for processing at least once a month;
· the wind data monitoring equipment should be re-calibrated at least once every six months; and
· wind direction should be divided into 16 sectors of 22.5 degrees.
·
In exceptional situations, the ET may propose
alternative methods to obtain representative wind data upon approval from the
IEC and Engineer, and agreed with EPD.
Laboratory Measurement/ Analysis
A clean laboratory with constant temperature
and humidity control, and equipped with the necessary measuring and
conditioning instruments to handle the dust samples, shall be available for
sample analysis and equipment calibration and maintenance. The laboratory shall
be either HOKLAS accredited or another internationally accredited laboratory.
If a site laboratory or a non-HOKLAS
accredited laboratory is used, the laboratory equipment and measurements shall
meet with the satisfaction of ER in consultation with the IEC. The ET shall
conduct regular audits to determine the accuracy of the measurement results.
Filter paper of size 8”x10” shall be
labelled before sampling. It shall be clean without pin holes and shall be
conditioned in a humidity controlled chamber for over 24-hour and be
pre-weighed before use for the sampling.
After sampling, the filter paper loaded with
dust shall be kept in a clean and tightly sealed plastic bag. The filter paper
shall then be returned to the laboratory for reconditioning in the humidity
controlled chamber followed by accurate weighing by an electronic balance with
a read-out down to 0.1mg. The balance
shall be regularly calibrated against a traceable standard.
All the collected samples shall be kept in a
good condition for 6 months before disposal.
Monitoring Locations
Three air monitoring locations near KDB300
and KDB400 were identified in the Project-wide EM&A Manual. They are Man King Building (AM4), Charming
Garden (AM5) and Olympian City Phase III (AM6). As there is no parapet on the roof of AM4, the safety of the
monitoring staff and the anchoring of equipment to avoid wind blown are major
concerns. There is also
constraint to obtain site access for monitoring works.
Alternative monitoring location was selected
according to the following criteria as stipulated in the Project-wide EM&A
Manual:
1) at the site boundary or such locations close to the major dust emission source;
2) close to the sensitive receptors;
3) proper position/sitting and orientation of the monitoring equipment; and
4) take into account the prevailing meteorological conditions.
Therefore it is proposed that the monitoring
location is relocated to the nearby Man Cheong Street Refuse Collection Point
of the Food and Environmental Health Department (FEHD), AM4a, which is, 1)
close to KDB300 work site, 2) the nearest building to the sensitive receivers,
3) available for installation of monitoring equipment without obstructions, and
4) in similar prevailing meteorological conditions as AM4. Table 5-1 gives the
proposed TSP monitoring stations which are illustrated in Figure 5-1.
Station ID. |
Description |
Monitoring Phase |
AM4a |
On
the roof of Man Cheong Street Refuse Collection Point |
Throughout
the Construction |
AM5 |
At podium outside Block 6
of Charming Garden facing Hoi Ting Road |
Throughout
the Construction{1} |
AM6 |
Rooftop
of Circulation Tower of Olympian City Phase III (Harbour Green)
|
Throughout
the Construction{2} |
{1} Due to the
complaints regarding the noise nuisance to the local
residents of Charming Garden, suspension of 24-hr TSP monitoring at AM5 was proposed.
{2} Impact monitoring commenced in July 2007.
Table 5-1 Proposed TSP Monitoring Locations
In the case that the status/ and locations
of dust sensitive receivers may change or the proposed monitoring location
becomes unavailable on the commencement of EM&A programme, the ET Leader
shall propose updated / alternative monitoring locations for the agreement with
ER, IEC and EPD. When alternative
monitoring locations are proposed, the following criteria, as far as
practicable shall be followed:
· At the site boundary or such locations close to the major dust emission source;
· Close to the sensitive receptors;
· Proper position/ sitting and orientation of the monitoring equipment; and
· Taking into account the prevailing meteorological conditions.
When positioning
the samplers, the following points shall be noted:
· a horizontal platform with appropriate support to secure the samples against gusty wind shall be provided;
· no two sampler shall be placed less than 2 m apart;
· the distance between the sampler and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the sampler;
· a minimum of 2 m separation from walls, parapets and penthouses is required for rooftops samplers;
· a minimum of 2 m separation from any supporting structure, measures horizontally is required;
· no furnace or incinerator flue is nearby;
· airflow around the sampler is unrestricted;
· the sampler is more than 20 m from the dripline;
· any wire fence and gate to protect the sampler, shall not cause any obstruction during monitoring;
· permission must be obtained to set up the samplers and to obtain access to the monitoring stations; and
· a secured supply of electricity is needed to operate the samplers.
5.2.1 Baseline Monitoring
Baseline monitoring shall be carried out to
determine the ambient 24‑hour and 1‑hour TSP levels. Baseline
monitoring shall be carried out at the monitoring locations prior to the
commencement of the construction works for a continuous period of at least 14
consecutive days under typical weather conditions with the 24-hour and three
1-hour ambient measurements taken daily while the highest dust impact is
expected at each monitoring location. During the baseline monitoring, there
shall not be any construction or dust generating activities in the vicinity of
the monitoring stations. A schedule on the baseline monitoring shall be
submitted to ER and IEC for approval before the monitoring commences.
In case the baseline monitoring cannot be carried
out at the designated monitoring locations during the baseline monitoring
period, the ET shall carry out the monitoring at alternative locations which
can effectively represent the baseline conditions at the impact monitoring
locations. The alternative baseline monitoring locations shall be approved by
ER and agreed with the IEC.
Alternatively as KCRC have already carried out their project-wide
baseline monitoring at the dust monitoring stations including AM4a and AM5 in
August 2005, their baseline monitoring results shall be adopted if the contract
specific baseline monitoring cannot be carried out before the commencement of
construction works.
In the exceptional case when insufficient
baseline monitoring data or questionable results are obtained, the ET Leader
shall liaise with the IEC and EPD to agree on an appropriate set of data to be
used as a baseline reference and submit to ER for approval.
Ambient conditions may vary seasonally and
shall be reviewed at every three months. If the ET Leader considers that the
ambient conditions have been changed and a repeat of the baseline monitoring is
required for obtaining the updated baseline levels, the monitoring shall be
conducted at times when the Contractor’s activities are not generating dust, at
least in the proximity of the monitoring stations. Should the change of ambient condition be determined, the
baseline levels and in turn, the air quality criteria should be revised. The
revised baseline levels and air quality criteria should be agreed with EPD and
the IEC.
5.2.2 Impact Monitoring
The monthly schedule of the compliance and
impact monitoring programme shall be drawn up by the ET two weeks prior to the
commencement of the scheduled construction period. For regular impact
monitoring, a sampling frequency of at least once in every six-days shall be
strictly observed at all of the monitoring stations for 24-hour TSP
monitoring. For 1-hour TSP monitoring,
the sampling shall be conducted at least three times in every six-days when the
highest dust impacts are likely to occur.
Before commencing the monitoring, the ET
shall inform the IEC of the impact monitoring programme such that the IEC can
conduct an on-site audit to ensure the accuracy of the impact monitoring
results.
Event and Action Plan
Action and Limit (A/L) levels that provide
an appropriate framework for the interpretation of monitoring results has to be
agreed between ET, IEC, EPD and ER before commencement of the air monitoring.
The air quality monitoring data shall be checked against the agreed A/L
levels. Recommended A/L levels and
action plan are listed in Table 5-2 & 5-3.
Parameters |
Action Level |
Limit Level |
24-hour TSP level in μg/m3 |
-- For baseline level £ 200 mg/m3, Action Level = (baseline level * 1.3 + Limit level)/2; -- For baseline level > 200 mg/m3, Action level = Limit level |
HKAQO of 260mg/m3 |
1-hour TSP level in μg/m3 |
-- For baseline £ 384 mg m-3, Action Level = (baseline level * 1.3 + Limit level)/2 -- For baseline > 384 mg
m-3, Action Level = Limit level |
EIAO Statutory Limit of 500mg/m3 |
Table 5-2 Proposed Action and Limit Levels for Air Quality Monitoring
EVENT |
ACTION |
|||
ET |
IEC |
ER |
CONTRACTOR |
|
ACTION LEVEL |
||||
Exceedance for one sample |
· Identify source, investigate the causes of exceedance and propose remedial measures; · Inform IEC and ER; · Repeat measurement to confirm finding; · Increase monitoring frequency to daily. |
· Check monitoring data submitted by ET; · Check Contractor’s working method. |
· Notify Contractor. |
· Rectify any unacceptable practice; · Amend working methods if appropriate. |
Exceedance for two or more consecutive samples |
· Identify source; · Inform IEC and ER; · Advise ER on the effectiveness of the proposed remedial measures; · Repeat measurements to confirm findings; · Increase monitoring frequency to daily; · Discuss with IEC and Contractor on remedial actions required; · If exceedance continues, arrange meeting with IEC and ER; · If exceedance stops, cease additional monitoring. |
· Check monitoring data submitted by ET; · Check Contractor’s working method; · Discuss with ET and Contractor on possible remedial measures; · Advise the ET on the effectiveness of the proposed remedial measures; · Supervise Implementation of remedial measures. |
· Confirm receipt of notification of exceedance in writing; · Notify Contractor; · Ensure remedial measures properly implemented. |
· Submit proposals for remedial to ER within 3 working days of notification; · Implement the agreed proposals; · Amend proposal if appropriate. |
LIMIT LEVEL |
||||
Exceedance for one sample |
· Identify source, investigate the causes of exceedance and propose remedial measures; · Inform IEC, ER, Contractor and EPD; · Repeat measurement to confirm finding; · Increase monitoring frequency to daily; · Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results. |
· Check monitoring data submitted by ET; · Check Contractor’s working method; · Discuss with ET and Contractor on possible remedial measures; · Advise ER on the effectiveness of the proposed remedial measures; · Supervise implementation of remedial measures. |
· Confirm receipt of notification of exceedance in writing; · Notify Contractor; · Ensure remedial measures properly implemented. |
· Take immediate action to avoid further exceedance; · Submit proposals for remedial actions to IEC within 3 working days of notification; · Implement the agreed proposals; · Amend proposal if appropriate. |
Exceedance for two or more consecutive samples |
· Notify IEC, ER, Contractor and EPD; · Identify source; · Repeat measurement to confirm findings; · Increase monitoring frequency to daily; · Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented; · Arrange meeting with IEC and ER to discuss the remedial actions to be taken; · Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results; · If exceedance stops, cease additional monitoring. |
· Discuss amongst ER, ET, and Contractor on the potential remedial actions; · Review Contractor’s remedial actions whenever necessary to assure their effectiveness and advise ER accordingly; · Supervise the implementation of remedial measures. |
· Confirm receipt of notification of exceedance in writing; · Notify Contractor; · In consultation with the IEC, agree with the Contractor on the remedial measures to be implemented; · Ensure remedial measures properly implemented; · If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated. |
· Take immediate action to avoid further exceedance; · Submit proposals for remedial actions to IEC within 3 working days of notification; · Implement the agreed proposals; · Resubmit proposals if problem still not under control; · Stop the relevant portion of works as determined by ER until the exceedance is abated. |
Table 5-3 Proposed Event/ Action Plan for Air Quality Monitoring
5.3 Airborne Construction Noise
Monitoring Parameters
The
construction noise level shall be measured in terms of the A-weighted
equivalent continuous sound pressure level (LAeq). LAeq, 30mins shall be used as the monitoring parameter for the
time period between 0700-1900 hours on normal weekdays. For all other time periods (including
restricted hours), LAeq, 5mins shall be employed for comparison with the Noise
Control Ordinance (NCO) criteria.
As supplementary information for data
auditing, statistical results such as L10 and L90 shall also be obtained for
reference.
Monitoring Equipment
In accordance with the Technical Memorandum
(TM) issued under the NCO, sound level meters in compliance with the
International Electrotechnical Commission Publications 651: 1979 (Type 1) and
804: 1985 (Type 1) specifications shall be used for carrying out the noise
monitoring. Immediately prior to and
following each noise measurement, the accuracy of the sound level meter shall
be checked using an acoustic calibrator generating a known sound pressure level
at a known frequency. Measurements may
be accepted as valid only if the calibration level from before and after the
noise measurement agree to within 1.0dB.
The ET Leader shall be responsible for the
provision, installation and maintenance of the monitoring equipment. He shall ensure that sufficient noise
monitoring equipment and associated instrumentation are available for carrying
out the baseline monitoring, regular impact monitoring and ad hoc
monitoring. All the equipment and
associated instrumentation shall be clearly labelled. The location of equipment installation should be proposed by the
ET Leader and agreed with ER and EPD in consultation with the IEC.
Noise measurements should not be made in the
presence of fog, rain, wind with a steady speed exceeding 5m/s or wind with
gusts exceeding 10m/s. The wind speed
shall be checked with a portable wind speed meter capable of measuring the wind
speed in m/s. The measured noise
levels, calibration results and field observations will be recorded down in
detail in a designated result table in the PDA. Appendix C shows a sample of
the result table.
Monitoring Locations
Three noise monitoring locations near KDB300
and KDB400 were identified in the Project-wide EM&A Manual. They are Man King Building (NM4), Charming
Garden (NM5) and Olympian City Phase III (NM6). As there is no parapet on the roof of NM4, the safety of the
monitoring staff and the anchoring of continuous noise equipment to avoid wind
blown are major concerns. There
is also constraint to obtain site access for monitoring works.
Alternative monitoring location was selected
according to the following criteria as stipulated in the Project-wide EM&A
Manual:
1) at locations close to the major site activities which are likely to have noise impacts;
2) close to the noise sensitive receivers; and
3) for monitoring locations in the vicinity of the sensitive receivers, care should be taken to avoid disturbance to the occupants during monitoring.
Therefore it is proposed that the continuous
noise monitoring location is relocated to the nearby Man Cheong Street Refuse
Collection Point which is, 1) close to KDB300 works site and, 2) close to the
sensitive receivers. The proposal for relocating the continuous
noise monitoring station has been justified by the ET Leader and verified by
the IEC. Table 5-4 gives the proposed
noise monitoring stations which are illustrated in Figure 5-2.
Station
ID. |
Description |
Monitoring
Phase |
Monitoring
Mode |
|
Once
Weekly |
Continuous |
|||
NM4{1} |
Man
King Building |
Throughout the Construction |
ü |
û |
NM4a |
Roof
parapet façade of the Man Cheong Street Refuse Collection Point facing the site |
Throughout the Construction |
û |
ü |
NM5 |
At
the podium façade outside Block 6 of Charming Garden facing Hoi Ting Road |
Throughout the Construction |
ü |
û |
NM6 |
Rooftop of Circulation Tower of Olympian City
Phase III (Harbour Green) |
Throughout the Construction{2} |
ü |
û |
{1} Weekly noise
monitoring at NM4 since 26 June 2006.
{2} Impact monitoring
commenced in July 2007.
Table 5-4 Proposed Noise Monitoring Locations
5.3.1 Baseline Monitoring
The ET shall carry out baseline noise
monitoring prior to the commencement of the construction works. There shall not be any construction activities
in the vicinity of the stations during the baseline monitoring. Continuous baseline noise monitoring for the
A-weighted levels LAeq, LA10 and LA90 shall be carried out daily for a period
of at least two weeks in a sample period of 5 minutes or 30 minutes between
0700 and 1900, and 5 minutes between 1900 and 0700. A schedule on the baseline monitoring shall be submitted to ER
and IEC for approval before the monitoring starts.
In case the baseline monitoring cannot be carried
out at the designated monitoring locations during the baseline monitoring
period, the ET shall carry out the monitoring at alternative locations which
can effectively represent the baseline conditions at the impact monitoring
locations. The alternative baseline monitoring locations shall be approved by
ER and agreed with the IEC.
Alternatively as KCRC have already carried out their project-wide
baseline monitoring at the noise monitoring stations including NM4a and NM5 in
August 2005, their baseline monitoring results shall be adopted if the contract
specific baseline monitoring cannot be carried out before the commencement of
construction works.
In exceptional case, when insufficient
baseline monitoring data or questionable results are obtained, the ET Leader
shall liaise with IEC and EPD to agree on an appropriate set of data to be used
as a baseline reference and submit to ER for approval.
5.3.2 Impact Monitoring
During normal construction working hour
(0700-1900 Monday to Saturday), monitoring of LAeq, 30min noise levels (as six
consecutive LAeq, 5min readings) shall be carried out at the agreed monitoring
locations once every week.
Other noise sources such as road traffic may
make a significant contribution to the overall noise environment. Therefore, the results of noise monitoring
activities shall take into account such influencing factors, which may not be
presented during the baseline monitoring period.
In case of non-compliance with the
construction noise criteria, more frequent monitoring as specified in the Event
and Action Plan in the preceding section shall be carried out. This additional monitoring shall be
continued until the recorded noise levels are rectified or proved to be
irrelevant to the construction activities.
Continuous Monitoring
CSCE/ the ET shall procure, implement and
maintain a Continuous Noise Monitoring System (CNMS) throughout the
construction period.
The objectives of implementing the CNMS are
summarized below:
· Measure various noise data (different measurement parameters) at designated locations continuously during specified period(s);
· Transmit the measured noise data electronically to a central computer system within the required time frame;
· Upload the measurement data to KCRC’s web site in an agreed format for public inspection;
· Maintain and keep all the measurement data in an agreed format during the entire construction period for subsequent analysis, where necessary.
CSCE
intends to adopt the CNMS configuration as of in Table 5-5. Method Statement with details of the specifications, configuration and
the operation / maintenance of the proposed equipment will be submitted to
KCRC, IEC and EPD for approval before the procurement of the CNMS.
Equipment / Components |
General Requirements |
Sound Level Meter (SLM) with data logger |
· Be suitable for outdoor use · Comply with IEC 651:1979 (Type 1), 804:1985 (Type 1) and 1672/EN61672 Class 1 requirements |
Data
transmitters and receivers |
· Be suitable for outdoor use · Transfer noise measurement data from the SLM to the receiver · Transmission power / frequency should be suitable and adequate for the local conditions |
Modems |
· Transfers measurement data to the computer system |
Computer system |
· Complete with the necessary software (e.g. spreadsheet, word processor and internet access) for data processing · Process the measurement data into the agreed format · Upload the processed data (including tables, charts, trends etc) to KCRC’s website which should allow the user (including the public) to search previous measurement data · Provided with sufficient memory to keep the measurement data for further use |
Power supply |
· Complete with all cabling and connection to power supply |
Security measures |
· Complete with security measures to prevent unnecessary human interference and damage |
Table 5-5 Targeted
Configuration of the Continuous Noise Monitoring System
For the
sake of security, CSCE proposes to install the CNMS at the roof floor of LCSD
Refuse Collection Point, NM4a. The major components of the CNMS would be housed
in a purpose built kiosk with locks.
The SLM
shall be calibrated once every 2 weeks against a portable acoustic calibrator
which is traceable to international reference source. Calibration records shall be filed and kept for further
reference. The full set of CNMS including
the acoustic calibrator shall be sent back to the manufacturer (or other
approved agency) for a full calibration every year or as recommended by the
manufacturer. In such an event and when
the prime system is broken down, a standby CNMS would be in place to maintain
uninterrupted noise measurements.
As per
the stipulation in the Project-wide EM&A Manual, the noise parameter as
proposed in the Table 5-6 shall be measured.
Period |
Parameters |
Weekdays · 0700-1900 hours |
· Leq (30min) in 6 consecutive Leq (5 min) measurements · Other parameters in L10,
L90 and Lmax should also be measured |
Restricted hours · 1900-0700 hours from Monday to Saturday · at any time on Sundays or public holidays) |
· Leq (15 min) in 3 consecutive Leq(5 min) measurements · Other parameters in L10,
L90 and Lmax should also be measured |
Table 5-6 Summary of Noise Parameter
of the Continuous Noise Monitoring
Event and Action Plan
The Action and Limit levels for construction
noise are proposed in Table 5-7. Should
non-compliance of the criteria occur, actions in accordance with the Action
Plan in Table 5-8 shall be taken.
Time Period |
Action |
Limit |
0700-1900 hrs on
normal weekdays |
When one documented complaint is received |
75* / 77#dB(A) |
0700-2300 hrs on
holidays; and 1900-2300 hrs on all other days |
70 dB(A) |
|
2300-0700 hrs of
next day |
55 dB(A) |
Notes: * For school, 70 dB(A) for schools
and 65 dB(A) during school examination periods.
# For NM4 in
the forth, eleventh, twelfth, nineteenth months of the construction programme
since there will be residual impact of 1 to 2 dB(A) at Man King Building as
predicted in the EIA report.
Table 5-7 Proposed Action and Limit Levels for Noise
Monitoring
Event |
Action |
|||
ET Leader |
IEC |
ER |
Contractor |
|
Action Level |
· Notify IEC and the Contractor. · Carry out investigation. · Report the results of investigation to IEC and the Contractor. · Discuss with the Contractor and formulate remedial measures. · Increase monitoring frequency to check mitigation measures. |
· Review with analysed results submitted by ET. · Review the proposed remedial measures by the Contractor and advise ER accordingly. · Supervise the implement of remedial measures. |
· Confirm receipt of notification of exceedance in writing. · Notify the Contractor. · Require the Contractor to propose remedial measures for the analysed noise problem. · Ensure remedial measures are properly implemented. |
· Submit noise mitigation proposals to IEC. · Implement noise mitigation proposals. |
Limit Level |
· Identify the source. · Notify IEC, ER, EPD and the Contractor. · Repeat measurement to confirm findings. · Increase monitoring frequency. · Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented. · Inform IEC, ER, and EPD the causes & actions taken for the exceedances. · Assess effectiveness of the Contractor’s remedial actions and keep IEC, EPD and ER, informed of the results. · If exceedance stops, cease additional monitoring |
· Discuss amongst ER, the ET Leader and the Contractor on the potential remedial actions. · Review the Contractor’s remedial actions whenever necessary to assure their effectiveness and advise ER, accordingly. · Supervise the implementation of remedial measures. |
· Confirm receipt of notification of exceedance in writing. · Notify the Contractor. · Require the Contractor to propose remedial measures for the analysed noise problem. · Ensure remedial measures are properly implemented. · If exceedance continues, consider what activity of the work is responsible and instruct the Contractor to stop that activity of work until the exceedance is abated. |
· Take immediate action to avoid further exceedance. · Submit proposals for remedial actions to IEC within 3 working days of notification. · Implement the agreed proposals. · Resubmit proposals if problem still not under control. · Stop the relevant activity of works as determined by ER, until the exceedance is abated. |
Table 5-8 Proposed Event and
Action Plan for Noise Monitoring
To
account for cases where ambient noise levels as identified by baseline
monitoring approach or exceed the stipulated Limit Levels prior to commencement
of construction, a Maximum Acceptable Impact Level may be defined and agreed
with EPD, which incorporates the baseline noise levels and the identified
construction noise Limit Level. The
amended level shall therefore be greater than 75dB(A) and shall represent the
maximum acceptable noise level at a specific monitoring station. Correction factors for the effects of
acoustic screening and/or architectural features of NSRs may also be applied
for.
For the
purposes of compliance checking, after taking into account any adjustments
agreed with EPD, comparison with either the Limit or the Maximum Acceptable
Impact Level shall represent the governing criteria for the noise impact.
For
continuous noise monitoring, in cases where the levels exceeds the Action /
Limit Levels set above, the hourly site log shall be examined to check whether
the exceedance is caused by extraneous activities. The ET is required to investigate whether the exceedance is
caused by KDB300 and KDB400 site activities or other extraneous noise
sources. The site log should contain
brief description of prevailing wind speeds and weather, once for a.m. section
and once for p.m. section each day. A
short explanation of the causes of any exceedance of Action / Limit Levels
shall accompany the plots.
According
to the finding of Contamination Assessment Report (CAR) (Appendix 10.2 of the
EIA Report), groundwater at some spots of the KSL alignment was found
contaminated with primarily heavy metals (i.e. Copper, Lead and Mercury) of
which their levels exceeded the Dutch ‘C’ level for groundwater. The KSL EIA report indicated that the water
sample collected at borehole KSD100/DHEPZ113 exceeded Dutch C level. But the
confirmation of contaminated groundwater shall be subject to
the ambient groundwater measurements to be carried out by the Contractor upon
site handover, as per Appendix AP18.3 “Contract Specific Environmental
Requirements” of Particular Specification.
The
selection and schedule of ambient/ baseline groundwater sampling shall be in
accordance with ProPECC PN3/94 “Contaminated Land Assessment and Remediation”.
Given that the site area of concern exceeds 5,000m2 where the number
of sampling locations shall be agreed with EPD, CSCE shall propose the sampling
schedule in form of a working plan to EPD for agreement.
A working
plan details the monitoring requirements including the number of recharge wells
and their specific locations, the baseline parameters of the recharge and
monitoring locations, and if necessary, the number of treatment facilities and
their treatment capacities shall be prepared and submitted to EPD for approval
before the baseline monitoring. The
location of monitoring and control wells depends on the location of the
recharge wells which are subject to the detailed design of the tunnel.
A separate
Groundwater Monitoring Working Plan was prepared and endorsed by EPD on 31
October 2006. An Updated Groundwater
Monitoring Working Plan was submitted to EPD on 31 January 2007 and approved on
21 February 2007.
Should
the groundwater contamination be confirmed, the EIA Report recommended to
recharge the contaminated groundwater from the dewatering process into the
ground at places where the existing groundwater quality should not be
affected. The locations of the recharge
wells shall be determined on the basis that the pollutant levels of the
groundwater to be recharged shall not be higher than the baseline at the
recharge well. Monitoring wells would
be selected where practical near to the recharge points and at site boundaries.
A control well shall also be installed.
Baseline Monitoring Parameters
According to the approved Updated Groundwater
Monitoring Working Plan, baseline monitoring parameters are shown in Table 5-9.
The chemical testing of groundwater should be undertaken by a HOKLAS accredited
laboratory and with individual HOKLAS accredited methods.
Parameters |
Monitoring Well |
Analytical Method |
Reporting Limit1 (mg/L) |
TM-Water effluent limit2
for inshore waters of VHWCZ (mg/L) |
Groundwater
Level |
AGM1
to AGM7, R1 to R2, M1 to M3, C1 and C3 (14 wells) |
In house |
0.1m |
--- |
pH |
In house |
0.1unit |
6-9 |
|
Temperature
°C |
In house |
0.1°C |
< 40°C |
|
TPH
C6 – C9 |
USEPA8015 |
20 mg/L |
--- |
|
TPH
C10–C14 |
25 mg/L |
--- |
||
TPH
C15 – C28 |
25 mg/L |
--- |
||
TPH
C29 – C36 |
25 mg/L |
--- |
||
Cd |
USEPA6020 |
0.0002 |
0.001 |
|
Cu |
AGM1 to AGM6, R1, M1, C1 and C3 (10 wells) |
0.001 |
0.1 |
|
Pb |
0.001 |
0.1 |
||
Zn |
0.01 |
0.1 |
||
Hg |
APHA3112B |
0.0005 |
0.001 |
|
Total Toxic Metals |
N/A |
N/A |
N/A |
0.2 |
Notes:
1.
Lowest detection limits could be achieved by
common commercial laboratories in Hong Kong.
For those substances not detected using these detection limits, it is
assumed that such substances do not exist in the water sample.
2.
As the maximum dewatering rate is 3,200m3/day, Subject to actual flow of
the groundwater to be discharged or the groundwater discharge license obtained
from EPDthe
discharge limits for the flow band of >3,000 and ≤4,000 3,200m3/day are adopted.
Table 5-9 Baseline Groundwater Testing Parameters
Groundwater
samples at each monitoring well should be collected with PVC bailer (or
equivalent). The bailer should be
decontaminated prior to use and in between sampling. The groundwater samples should be transferred to clearly labelled
and pre-cleaned sample containers with necessary preservatives immediately
after collection. Sufficient quantity
of samples should be collected for all laboratory analyses. After collection, the groundwater samples
should be stored at 0-4ºC and delivered to the laboratory within 24 hours under
proper chain-of-custody system. The
sample collection shall be detailed in the working plan.
CSCE
supposes that the impact monitoring of groundwater recharging process is only
required if the ambient/ baseline monitoring reveals contamination of
groundwater within the KDB300 and KDB400 site areas.
During
the re-charging of underground water, the water level at the monitoring wells
should be monitored on a daily basis to ensure that the water levels at the
site boundary shall not increase significantly.
During the
re-charging of underground water, the water quality at the monitoring wells and
control well shall be measured on a weekly basis to ensure that the pollution
levels shall not increase significantly.
According to the approved Updated Groundwater Monitoring Working Plan,
testing parameter includes TPH only.
Should
the pollutants of the recharging groundwater (after petrol interceptor) exceed
the baseline value and there are no justifications from the measurements at the
control well, CSCE shall propose with the consultation of the EPD the treatment
method for the recharging groundwater.
The event
and action plan is summarized in Table 5-10.
Event |
Action |
|||
ET Leader |
IEC |
ER |
Contractor |
|
Groundwater level exceeds 1m from baseline Level |
Notify IEC and the Contractor. Carry out investigation. · Report the results of investigation to IEC and the Contractor. · Discuss with the Contractor and formulate remedial measures. · Increase monitoring frequency to check mitigation measures. |
· Review with analysed results submitted by ET. · Review the proposed remedial measures by the Contractor and advise ER accordingly. · Supervise the implement of remedial measures. |
· Confirm receipt of notification of exceedance in writing. · Notify the Contractor. · Require the Contractor to propose remedial measures for the analysed groundwater problem. · Ensure remedial measures are properly implemented. ·
|
· Reduce the recharge rate AND / OR · Suspend the recharge until the groundwater level at recharge points falls back to less than 1m difference with the baseline |
Limit Level Exceedance for TPH |
· Notify IEC and the Contractor. · Carry out investigation. · Report the results of investigation to IEC and the Contractor. · Discuss with the Contractor and formulate remedial measures. · Increase monitoring frequency to check mitigation measures. |
· Review with analysed results submitted by ET. · Review the proposed remedial measures by the Contractor and advise ER accordingly. · Supervise the implement of remedial measures. |
· Confirm receipt of notification of exceedance in writing. · Notify the Contractor. · Require the Contractor to propose remedial measures for the analysed groundwater problem. · Ensure remedial measures are properly implemented. |
· Suspended the recharge OR · Treatment of the recharging groundwater |
Table 5-10 Event and Action
Plan for Groundwater Monitoring
Site
inspections provide direct means to trigger and enforce the specified
environmental protection and pollution control measures. They shall be undertaken routinely to
inspect the construction activities to ensure appropriate environmental
protection and pollution control/ mitigation measures are properly
implemented. With well defined
pollution control and mitigation specifications and a well established site
inspection, deficiency and action reporting system, site inspection is one of
the most effective tools to enforce the environmental protection requirements
on the construction site.
The ET
Leader shall be responsible for formulating the environmental site inspection,
deficiency and action reporting system, and carrying out the site inspection
works. He shall submit a proposal on
site inspection, deficiency and action reporting procedures within 21 days
prior to construction commencement to the Contractor for approval from ER and the
IEC.
Regular
site inspections shall be carried out at least once per week. The areas of inspection shall not be limited
to the environmental situation, pollution control and mitigation measures
within the site. It should also review
the environmental situation outside the site area which is likely to be
affected, directly or indirectly, by the site activities. The ET Leader shall make reference to the
following information in conducting the inspection:
· the EIA recommendations on environmental protection and pollution control mitigation measures;
· works progress and programme;
· individual works methodology (which shall include proposal on associated pollution control measures);
· Contract Specifications on environmental protection;
· relevant environmental protection and pollution control laws; and
· previous site inspection results.
CSCE shall
update ET Leader with all relevant information of the construction Contract for
him to carry out the site inspections.
The inspection results and its associated recommendations on
improvements to the environmental protection and pollution control works shall
be submitted to ER, IEC and CSCE within 1 working day for reference and for
taking immediate actions. CSCE shall
follow the procedures and timeframe as stipulated in the environmental site
inspection, deficiency and action reporting system formulated by the ET Leader
to report on any remedial measures subsequent to the site inspections.
After each site inspection, ET will provide
the Contractor the site inspection checklist with the identified deficiencies
on site and the time-frame to rectify the condition. The Contractor after discussion with the ET, will carry out the
rectification action. ET will inspect
the rectified condition in the next weekly inspection or the completion time as
agreed. The result of the rectification
will be reported in the site inspection checklist.
Ad hoc
site inspections shall also be carried out if significant environmental
problems are identified. Inspections
may also be required subsequent to receipt of an environmental complaint, or as
part of the investigation work, as specified in the Event and Action Plans for
environmental monitoring and audit.
6.2 Compliance with Legal and Contractual Requirement
There are
contractual environmental protection and pollution control requirements as well
as environmental protection and pollution control laws in Hong Kong, which the
construction activities shall comply with.
In order to comply with the contractual requirements, all works method
statements submitted by CSCE to ER and IEC for approval shall be sent to the ET
Leader for vetting, to ensure sufficient environmental protection and pollution
control measures have been included.
The ET
Leader shall also review the progress and programme of the works to check that
relevant environmental laws have not been violated, and that any foreseeable
potential for violating the laws can be prevented. CSCE shall regularly copy relevant documents to the ET Leader so
that the checking work can be carried out.
The document shall at least include the updated Work Progress Reports,
the updated Works Programme, the application letters for different license/permits
under the environmental protection laws, and all the valid license/permit. The site diary shall also be available for
the ET Leader's inspection upon his request.
After
reviewing the document, the ET Leader shall advise ER, IEC and CSCE of any
non-compliance with the contractual and legislative requirements on
environmental protection and pollution control for them to take follow-up
actions. If the ET Leader's review
concludes that the current status on license/permit application and any environmental
protection and pollution control preparation works may not cope with the works
programme, or may result in potential violation of environmental protection and
pollution control requirements by the works in due course, he shall also advise
CSCE, ER, and IEC accordingly.
Upon
receipt of the advice, CSCE shall undertake immediate actions to rectify the
situation to the satisfaction of ER
Complaints
incepted at the Community Liaison Office and other relevant parties shall be
referred to the ET Leader for carrying out complaint investigation. The ET Leader shall undertake the following
procedures upon receipt of the complaints:
· log complaint and date of receipt onto the complaint database;
· investigate the complaint to determine its validity, and to assess whether the source of the problem is due to works activities;
· identify mitigation measures if a complaint is valid and due to works;
· advise the Contractor accordingly if mitigation measures are required;
· review the Contractor's response on the identified mitigation measures and the updated situation;
· submit interim report to ER on status of the complaint investigation and follow-up action within the time frame assigned by ER;
· undertake additional monitoring and audit to verify the situation if necessary, and review that any valid reason for complaint does not recur;
· report the investigation results and the subsequent actions to the source of complaint for responding to complainant (If the source of complaint is EPD, the results should be reported within the time frame assigned by EPD); and
· record the complaint, investigation, the subsequent actions and the results in the monthly EM&A reports.
CSCE and
ER shall also be notified of the nature of complaints. An investigation shall
be initiated to determine the validity of the complaint and to identify the
source of the problem.
The
outcome of the investigation and the action taken shall be documented on the
complaints proforma. Where possible, a
formal response to each complaint received shall be prepared, within a maximum
of seven days, so as to notify the concerned person(s) that action has been
taken.
All
enquires which trigger this process shall be reported in the monthly EM&A
reports which shall include results of inspections undertaken by site staff,
and details of the measures taken, and additional monitoring results. It should be noted that the receipt of
complaints or enquiries shall not, in itself be sufficient reason to introduce
additional mitigation measures. They shall however initiate the Event and
Action Plan and these procedures may lead to the introduction of mitigation
measures if they are considered necessary.
In all cases the complainant shall be notified of the findings of the
Event and Action Plan and audit procedures put in place to ensure that the
problem does not recur.
During
the complaint investigation work, CSCE and ER shall cooperate with the ET
Leader in providing all the necessary information and assistance for completion
of the investigation. If mitigation
measures are identified in the investigation, CSCE shall promptly carry out the
mitigation. CSCE and the ET Leader
shall propose the complaint response procedures for the approval of ER and IEC.
6.4 Environmental Mitigation Measures
Environmental
mitigation measures have been recommended in EIA Report which shall be
implemented to control adverse effects on air quality, noise, water quality,
wastes, landscape and visual aspects. CSCE
shall implement all mitigation measures as detailed in the EMIS (Table 6-1)
during the entire construction period. CSCE
shall review the recommended mitigation measures with respect to the latest
construction methods and programme. CSCE
shall also consider additional mitigation measures where necessary in
consultation with the ET Leader.
EIA Ref. |
Environmental
Impact |
Proposed
Mitigation Measures |
Work
Processes/ Activities of Concern |
Work Zone
of Concern |
Implementation
Period |
Relevant
Requirements / standards / guidelines |
EIA-S5.6 |
Construction Dust ●
Exposed spoil areas under KDB300 and KDB400 ●
Other dust impacts as described in the Air Pollution Control
(Construction Dust) Regulation |
●
The areas of concern shall be watered at least twice a day ●
Implement the mitigation measures as recommended in the Air Pollution
Control (Control Dust) Regulation e.g. paving main haul roads, watering of
exposed spoil and bare ground, covering dusty stockpiles entirely with
imperious sheeting or spraying with water and performing wheel washing at
site exits. |
●
Open excavation and stockpiling ●
All construction activities |
●
KDB300 and KDB400 railway alignment and the designated stockpiling
areas. ●
All work areas |
●
Dec05 – Sep07 ●
Throughout the Contract |
Air
Pollution Control (Construction Dust) Regulation |
EIA-S6.1.4 |
Construction Noise ●
Noise from site plants |
●
Adopt good site practices as follows to limit noise emissions: -
Site plants well-maintained -
Machines and plants shut down when not used. -
Plants orientated so that the noise is directed away from NSRs -
Silencer or mufflers properly fitted and maintained on plants -
Mobile plant be site away from NSR -
Material stockpiles and container site offices be situated at
strategic location serving to screen noise from construction activities ●
Install temporary hoarding of 2.4m high at site boundaries section
directly facing the NSR. The
surface density of the temporary hoarding and portable noise barriers will be
at least 14kg/m2 as required in the EP. ●
Install portable noise barriers or enclosures to screen the noisy
plants from the most sensitive receiver. i.e. Man King Building. ●
Liaise with school representatives of Yau Ma Tei Catholic Primary
School and HKMA David Li Kwok Po College and schedule the noisy construction
activity outside school examination periods ●
Select “quiet plants” whenever available which comply with the BS5228
Part 1 or TM standards ●
Sequencing site operation to avoid excessive plants working at the
same time ●
The construction work at the tunnel section (about 100m) to the north
of West Kowloon Station and in adjacent to the Man King Building should be
scheduled to proceed sequentially section by section of not longer than 50m. |
●
All construction activities ●
Site mobilization/ demobilization, utility diversion, cofferdam
construction, excavation, tunnel box construction and backfilling ●
– ditto – ●
site clearance, utility diversion, ground treatment, traffic
diversion, cofferdam construction, excavation, tunnel box construction &
backfilling ●
All construction works ●
All construction works ●
Cofferdam construction, excavation, tunnel box construction &
backfilling |
●
All work areas ●
Work areas near the NSR (i.e. Man Cheong Estate and Charming Garden) ●
The work area in adjacent to Man King Building ●
The work area in close proximity of the Charming Garden ●
All work areas ●
All work areas ●
The work area in adjacent to Man King Building |
●
Throughout the Contract ●
Throughout the Contract ●
Throughout the Contract ●
Throughout the Contract ●
Throughout the Contract ●
Throughout the Contract ●
Throughout the Contract |
Practice
Note for Professional Person (ProPECC) PN1/93 and PN2/93, and Noise Control
Ordinance FEP-02&03/125/2005/A,
3.1 & 3.2 |
|
●
Sheet and pipe piling |
●
Use the quieter piling machine (e.g. push-in type paler) at work areas
close to the noise sensitive receiver (i.e. Man King Building). ●
Obtain from EPD the construction noise permit for the percussive
piling work and follow the conditions of the permit in performing the piling
operation. |
●
Cofferdam construction ●
Cofferdam construction |
●
The work area in adjacent to Man King Building ●
Along KDB300 & KDB400 railway alignment |
●
Nov05 – Feb07 ●
Throughout the Contract |
NCO and TM for Percussive Piling |
|
●
Implement a real-time continuous noise monitoring under EM&A
programme |
●
Continuously monitoring the construction noise levels at the selected
representative locations |
●
Refuse collection point at Man Cheong Street (to replace Man King
Building) |
●
The work area in adjacent to Man King Building |
●
Throughout the Contract |
|
EIA-S8.4.2 |
Water Quality Impact ●
Construction runoff and site drainage |
●
Follow as far as practicable the site practices outlined in ProPECC PN
1/94. ●
Provide perimeter cutoff drains, earth bunds or sand bag barriers to
direct stormwater to silt removal facilities. ●
Construct dikes or embankments around the boundaries of earthwork
areas to facilitate the runoff silt removal facility. ●
Keep the overall slope of the site to a minimum and the side slope as
a result of open-cut excavation shall be compacted and shotcreted or covered
with tarpaulin sheeting. ●
Install trench drains on the excavation side slope to direct the
runoff to the designated sump where the runoff water would be pumped for
sedimentation where necessary before final discharging at the WPCO licensed
discharge point. ●
Inspect regularly all drainage and silt removal facilities to ensure
proper and efficient operation at all times. |
●
All construction activities ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
All work areas ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Throughout the Contract ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
Water
Pollution Control Ordinance (WPCO) and ProPECC PN 1/94 |
EIA-S8.4.2 |
●
Groundwater from dewatering |
●
Collect and analyse groundwater samples along the tunnel alignment to
update the extent of potential groundwater contamination ●
Recharge the contaminated groundwater back into the ground via
recharge wells ●
Remove the free product prior to recharge ●
Determine the ambient groundwater quality for the selection of
recharge well locations and submit a working plan to EPD for agreement. ●
The groundwater recharge wells should be selected at those places
where groundwater quality shall not be affected by the recharge
operation. The ambient groundwater
quality shall be measured which shall serve as the baseline and the pollutant
levels of the groundwater to be recharged shall measured and not be higher
than the baseline measurement. ●
Groundwater monitoring wells shall be installed to monitor the
effectiveness of the recharge wells and the groundwater level at the
monitoring well shall be monitored during the recharge period to ensure that
there is no likelihood of locally risen groundwater level and transfer of
pollutants beyond the site boundary. ●
Should the pollutants of recharging groundwater exceed the baseline
limit, the groundwater would be treated appropriately prior to recharging. ●
Apply a WPCO discharge license for the groundwater recharge operation |
●
Excavation & groundwater dewatering/ recharge ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Along KDB300 & KDB400 railway alignment ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Nov05 – Apr07 ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
FEP 02&03/215/2005/A 3.4 and WPCO |
EIA-S8.4.2 |
●
Sewage Effluent |
●
Provide chemical toilets and sewage holding tanks for handling the
construction sewage generated by the workforce and employ licensed collector
to collect the sewage for disposal. |
●
All construction activities |
●
Construction site and site offices |
●
Throughout the Contract |
WPCO |
EIA-S9.2.10 |
Waste Management ●
C&D Materials |
●
Optimise the opportunity for reusing of fill material for backfilling. ●
Maintain temporary stockpiles and reuse excavated fill material for
backfilling and reinstatement. ●
Sort on-site the construction wastes where public fills are to be
reuse as backfills or disposed of at public filling areas and C&D wastes
are to be disposed of at landfills. ●
Good site management and planning to minimize over-ordering of
concrete, mortars and cement grouts. ●
Maximize the reuse of wooden panels/ timber for construction of
formworks on-site. ●
Properly segregate the waste on-site to retrieve the recyclable components
for recycling. ●
Implement the trip-ticket system with reference to ETWB TCW No.
31/2004 to ensure that the proper disposal of C&D materials be documented
and verified. ● Should the surplus public
fills be disposed of at disposal site other than the public filling area,
prior approval from KCRC would be sought before implementation. |
●
All construction activities ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
All work areas ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Throughout the Contract ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
ETWB
TC 15/2003, TC No. 31/2004, Waste Disposal Ordinance (WDO) |
EIA-S9.2.3.4 |
●
Contaminated Marine Deposits |
●
Uncontaminated alluvial/ marine deposits (MD) and contaminated marine
deposits shall require open sea disposal and be disposed of at confined mud
pits respectively in accordance with the provision of ETWB TCW No. 34/2002. ●
The trucks for the transportation of marine deposits shall be leach
proof and the truck load shall be covered with impervious sheeting to prevent
the watery content from leaking and splashing during the voyage to the
barging facility. ●
Apply to MFC for allocation of MD disposal site and to EPD for dumping
permit. ●
All construction plant and equipment shall be designed and maintained
to minimize the risk of silt, sediments, contaminants or other pollutants
being released into the water column or deposited in the locations other than
designated location. ●
All vessels shall be sized such that adequate draft is maintained
between vessels and the sea bed at all states of the tide to ensure that
undue turbidity is not generated by turbulence from vessel movement or
propeller wash. ●
Before moving the vessels which are used for transporting MD material,
excess material shall be cleaned from the decks and exposed fittings of
vessels and the excess materials shall never be dumped into the sea except at
the approved locations. ●
Adequate freeboard shall be maintained on barges to ensure that decks
are not washed by wave action. ●
Monitor all vessels transporting material to ensure no dumping outside
the approved location and keep logs and other record to demonstrate
compliance and that journeys are consistent with designated locations. ●
Comply with the conditions in the dumping license. ●
The bottom dumping vessels shall be fitted with tight fittings seals
to its bottom openings to prevent leakage of material during the voyage. ●
Contaminated MD shall be transported by split barge of not less than
750m3 capacity and capable of rapid opening and discharge at the disposal
site. ●
Discharge shall be undertaken rapidly and the hoppers shall be closed
immediately. Material adhering to the sides of the hopper shall not be washed
out of the hopper and the hopper shall remain closed until the barge returns
to the disposal site. |
●
Excavation ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Along KDB300 & KDB400 railway alignment ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Dec05 – Jun07 ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
ETWB TC 34/2002 |
EIA-S9.2.10 |
●
Chemical Waste |
●
Register with EPD as the chemical waste producer. ●
Provide centralized storage areas for the chemical wastes, where the
storage area shall be constructed in accordance with the “Code of Practice on
the Packaging, Labelling and Storage of Chemical Wastes”. ●
The chemical waste store shall be clearly labeled and used solely for
the storage of chemical waste; enclosed on at least 3 sides; have an
impermeable floor and bundling of sufficient capacity to accommodate 110% of
the volume of the largest container or 20% of the total volume of waste
stored in that area, whichever is the greatest; have adequate ventilation;
covered to prevent rainfall entering; and arranged so that incompatible
materials are adequately separated. ●
Disposal of chemical waste shall be via a licensed waste collector. |
●
All construction activities ●
– ditto – ●
– ditto – ●
– ditto – |
●
All work areas ●
– ditto – ● – ditto – ●
– ditto – |
●
Throughout the Contract ●
– ditto – ●
– ditto – ●
– ditto – |
Waste Disposal (Chemical Waste) (General)
Regulation |
EIA-S9.2.10 |
●
General Refuses |
●
General refuse generated on-site shall be stored in waste skip
separately from construction and chemical wastes. ●
A waste collector shall be employed to remove and dispose of the
general refuse from the site on a regular basis to minimize odour, pest and
litter impacts. ●
Aluminium cans and plastic bottles would be separated and recovered
from the waste and be collected by the local recycler. ●
Office wastes would be reduced through the recycling of paper and
printer cartridges which shall be collected by the local recycler. ●
Provide training to the site staff and workers of the concepts of site
cleanliness and appropriate waste management procedures. |
●
All construction activities ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
All work areas ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
●
Throughout the Contract ●
– ditto – ●
– ditto – ●
– ditto – ●
– ditto – |
WDO |
|
Landscape & Visual Impact |
|
|
|
|
|
S.11.5.4
& S.11.6.2 & S.11.8.1 |
Adjacent landscape |
·
The
construction area and contractor’s temporary works area shall be minimised to
avoid impacts on adjacent landscape.
Existing trees within contractor’s temporary works areas should be
retained and protected where practical. |
All construction
activities |
All
work areas |
Throughout
the contract |
· EIAO TM · ETWBC 14/2002 · LAOI D12 |
S.11.5.4
& S.11.6.2 & S.11.8.1 |
Damage to surrounding landscape areas |
·
Regular
checks shall be carried out to ensure that work site boundaries are not
transgressed, hoardings are properly maintained and that no damage is being
caused to the surrounding landscape areas. |
All construction
activities |
All
work areas |
Throughout
the contract |
· EIAO TM |
S.11.5.4
& S.11.8.1 |
Reuse of top soil for landscape works |
·
Topsoil, where identified, shall be stripped and stored for re-use in
the construction of soft landscape works, where practical. |
All construction
activities |
All
work areas |
Throughout
the contract |
·
EIAO TM |
S.11.5.4
& S.11.6.2 & S11.7.1 |
Soil erosion |
·
The potential for soil erosion shall be reduced by minimising the
extent of vegetation disturbance on site and by providing a protective cover
(e.g. plastic sheeting or a grass cover established by hydroseeding) over
newly exposed soil |
All construction
activities |
All
work areas |
Throughout
the contract |
·
EIAO TM |
S.11.5.4
& S.11.7.1 |
Impact on trees |
·
All works shall be carefully designed to minimise impacts on existing
trees. All retained trees shall be
recorded photographically at the commencement of the contract, and carefully
protected during construction by fencing them off from the rest of the
works. The project proponent shall
review the site works in order to minimise the preservation of the trees of
high amenity value in situ. A total
of no more than 1200 trees shall be affected (i.e. felled or transplanted) by
the works, of which no more than 105 shall be of high amenity value. |
All construction activities |
All
work areas |
Throughout
the contract |
· EIAO TM · ETWBC 14/2002 · LAOI D12 |
S.11.5.4
& S.11.7.1 |
Tree transplantation |
·
The project proponent shall maximise the transplantation of trees of
high amenity value if preservation in situ is not feasible. Sufficient time for necessary tree root
and crown preparation periods prior to moving the trees shall be allowed in
the project programme. Precise
numbers of trees to be retained, transplanted and felled shall be determined
and agreed separately with Government during the Tree Felling Application
process under ETWBTC 14/2002. However
a minimum of 80% of the affected trees of high amenity value shall be
transplanted. ·
Designated locations for the transplants and arrangement for
transplantation shall be resolved and agreed with relevant department in
advance. Potential destination
locations include: roadside landscape areas in West Kowloon, vacant lots in
West Kowloon zoned for development as public open space, and existing public
open spaces. ·
If potential destination locations cannot be found by the time the
trees are removed from site, they will be located to a holding nursery until
destination locations are found. If
no locations outside the project area can be found, they will be stored in
the holding nursery for the duration of the contract and transplanted back into
the project area at the end of the project. |
All construction
activities |
All
work areas |
Throughout
the contract |
· EIAO TM · ETWBC 14/2002 · LAOI D12 |
EIA-S11.5.4
& S11.6.2 & S11.7.1 |
·
The large temporary stockpiles of excavated material
|
●
The stockpiles shall be covered with visually unobtrusive sheeting in
subdued ‘camouflage’ colour tone to prevent dust and dirt spreading to
adjacent landscape areas and vegetation, and to create a neat and tidy visual
appearance. |
●
Open excavation and stockpiling |
●
The designated stockpiling areas. |
●
Dec05 – Sep07 |
ETWB
TC 14/2002 and EIAO TM |
EIA-S11.6.2
& S11.7.1 |
●
Glare from night lighting |
●
Control night lighting and prevent glare to surrounding receivers by
directing all security lighting downward into work sites and works areas. |
●
Site office operation & nighttime construction activities |
●
Site offices & working areas |
●
Throughout the Contract |
FEP-02&03/125/2005/A, 3.6 |
EIA-S11.6.2
& S11.7.1 |
●
Site hoardings and temporary noise barriers |
●
Maintain clean and tidy of the hoardings throughout the construction
period. ●
Design the noise barrier to minimize adverse visual impacts on
adjacent receivers. |
●
Boundary hoarding/ fencing installation ●
Noise barrier installation |
●
Work site boundary ●
Work areas near the NSR (i.e. Man Cheong Estate, Charming Garden and
Olympian City Phase III) |
●
Throughout the Contract ●
– ditto – |
EIAO TM |
|
Hazard |
|
|
|
|
|
S.13 |
●
Explosive on site |
●
No overnight storage of explosive shall be allowed. |
●
Blasting works |
●
Excavation areas |
●
Throughout the contract |
|
Table 6-11 Proposed Implementation Schedule of
Environmental Mitigation Measures
The following reporting requirement shall be based
upon a paper documented approach. It is
a contractual requirement that the same information / monitoring data shall be in
an electronic medium and made available to the KCRC’s Environmental Management
System on a daily basis or a frequency as agreed by ER. This would enable a
transition from a paper/historic and reactive approach to an electronic/real
time proactive approach.
7.2 Electronic Environmental Management System (EEMS)
As per the Environmental Permit requirement, KCRC
would have designated a KCRC’s web site where the environmental monitoring data
is to be placed. CSCE shall be
responsible for the data entry of monitoring results to the designated web site
which forms a part of the KCRC’s Environmental Management System. Environmental Monitoring and audit data to
be posted on the dedicated web site for public inspection may include:
· Contract Information,
· EP submissions,
· Monitoring Location Details,
· Baseline Monitoring Data,
· Impact Monitoring Data (i.e. TSP, groundwater quality and airborne construction noise),
· Continuous Noise Monitoring Data and
· Site Contact Details,
7.3 Baseline Monitoring Report
The ET Leader shall prepare and submit a
Baseline Environmental Monitoring Report, endorsed by IEC, within 10 working
days of completion of the baseline monitoring before submission to EPD. Copies of the Baseline Environmental
Monitoring Report shall be submitted to each of the four parties: the
Contractor, IEC, ER and EPD at least 2 weeks before commencement of
construction of the Project. The ET
Leader shall liaise with the relevant parties on the exact number of copies required. The format of the report and the format of
the baseline monitoring data in magnetic media to be submitted to EPD shall be
agreed with EPD.
The baseline monitoring report shall include
at least the following:
· to half a page executive summary;
· brief project background information;
· drawings showing locations of the baseline monitoring stations;
· monitoring results (in both hard and diskette copies) together with the following information:
- monitoring
methodology
- equipment
used and calibration details
- parameters
monitored
- monitoring
locations (and depth)
- monitoring
date, time, frequency and duration;
· details on influencing factors, including:
- major
activities, if any, being carried out on the site during the period
- weather
conditions during the period
- other
factors which might affect the results;
· determination of the Action and Limit Levels for each monitoring parameter and statistical analysis of the baseline data;
· revisions for inclusion in the EM&A Manual; and
· comments and conclusions.
The results and findings of all EM&A
works shall be recorded in the monthly EM&A reports prepared by the ET
Leader and endorsed by IEC. The
EM&A report shall be prepared and submitted within 10 working days of the
end of each reporting month, with the first report due in the month after
construction commences. Copies of each
monthly EM&A report shall be submitted to each of the four parties: CSCE, ER,
IEC and EPD. Before submission of the
first EM&A report, the ET Leader shall liaise with the parties on the exact
number of copies and format of the monthly reports in both hard copy and
electronic medium requirement.
The ET leader shall review the number and
location of monitoring stations and monitoring parameters every 6 months or on
as needed basis in order to cater for the changes in surrounding environment
and nature of works in progress.
The first monthly
EM&A report shall include at least the following:
· 1-2 pages executive summary;
· basic project information including a synopsis of the project organisation, programme and management structure, and the work undertaken during the month;
· a brief summary of EM&A requirements including:
- all
monitoring parameters
- environmental
quality performance limits (Action and Limit levels)
- Event-Action
Plans
- environmental
mitigation measures, as recommended in the EIA report
- environmental
requirements in Contract documents;
· advice on the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the EIA report and implementation schedule;
· drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
· monitoring results (in both hard and diskette copies) together with the following information:
- monitoring
methodology
- equipment
used and calibration details
- parameters
monitored
- monitoring
locations (and depth)
- monitoring
date, time, frequency, and duration;
· graphical plots of trends of monitored parameters over the past four scheduled audits for representative monitoring stations annotated against the following:
- major
activities being carried out on site during the period
- weather
conditions during the period
- any
other factors which might affect the monitoring results;
· advice on the solid and liquid waste management status;
· a summary of non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);
· a review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures;
· a description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance;
· a summary record of all complaints received (written or verbal) for each media, including locations and nature of complaints, liaison and consultation undertaken, actions and follow-up procedures taken and summary of complaints; and
· An account of the future key issues as reviewed from the works programme and work method statements.
The subsequent monthly EM&A reports shall
include the following:
· Title Page;
· Executive Summary (1-2 pages)
- Breaches
of AL levels
- Complaint
Log
- Reporting
Changes
- Future
key issues;
· Contents Page;
· Environmental Status
- Drawing
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations
- Summary
of non-compliance with the environmental quality performance limits
- Summary
of complaints;
·
Environmental
Issues and Actions
- Review
issues carried forward and any follow-up procedures related to earlier
non-compliance (complaints and deficiencies)
- Description
of the actions taken in the event of non-compliance and deficiency reporting
- Recommendations
(should be specific and target the appropriate party for action)
- Implementation
status of the mitigation measures and the corresponding effectiveness of the
measures;
· Future Key Issues; and
· Appendix
- AL
levels
- Graphical
plots of trends of monitored parameters at key stations over the past four
scheduled audits for representative monitoring stations annotated against the
following:
(i)
activities being carried out on site during the period
(ii)
conditions during the period
(iii)
other factors which might affect the monitoring results
- Monitoring
schedule for the present and next reporting period
- Cumulative
complaints statistics
- Details
of complaints, outstanding issues and deficiencies.
The cessation of EM&A programme shall be determined based on completion of construction activities, trends analysis of the EM&A programme, no environmental complaint and prosecution and IEC's endorsement.
The Final EM&A Report shall contain at
least the following information:
· Executive Summary (1-2 pages);
· drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations:
· basic project information including a synopsis of the project organization contacts of key management, and a synopsis of work undertaken during the course of the project or past twelve months;
· a brief summary of EM&A requirements including:
-
environmental
mitigation measures, as recommended in the EIA Report;
-
environmental
impact hypotheses tested;
-
AL Levels;
-
all monitoring
parameters
-
Event-Action
Plans;
· a summary of the implementation status of environmental protection and pollution control/mitigation measures as recommended in the EIA report summarized in the updated implementation schedule;
· graphical plots and the statistical analysis of the trends of monitored parameters over the course of the project, including the post project monitoring (for the past twelve months for annual report) for all monitoring stations against:
-
the major activities
being carried out on site during the period;
-
weather
conditions during the period; and
-
any other factors
which might affect the monitoring results
· a summary of non-compliance (exceedances) of the environmental quality performance limits (AL Levels);
· a review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures as appropriate;
· a description of the actions taken in the event of non-compliance;
· a summary record of all complaints received (written or verbal) for each media liaison and consultation undertaken, action and follow-up procedures taken;
· a summary record of notifications of summons and successful prosecutions for breaches of the current environmental protection/pollution control legislations including locations and nature of the breaches, investigation, follow-up actions taken and results;
· a review of the validity of EIA Report predictions and identification of shortcomings in EIA Report recommendations; and
· a review of the effectiveness and efficiency of the mitigation measures; and
· a review of success of the EM&A programme to cost effectively identify deterioration and to initiate prompt effective mitigation action when necessary.
The site documents such as the monitoring
field records, laboratory analysis records, site inspection forms, etc. are not
required to be included in the monthly EM&A reports for submission. However, the documents shall be well kept by
the ET Leader and be ready for inspection upon request. All relevant information shall be clearly
and systematically recorded in the documents.
The monitoring data shall also be recorded in magnetic media form. All the documents and data shall be kept
for at least one year after completion of the construction Contract.
7.6 Interim Notification of Environmental Quality Limit Exceedances
With reference to Event and Action Plans,
when the environmental quality limits are exceeded, the ET Leader shall
immediately notify ER, IEC and EPD, as appropriate, through the EEMS. The notification shall be followed up to
advise EPD if necessary, and IEC on the results of the investigation, proposed
action and any necessary follow-up proposals in case of exceedance.
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Construction Programme and Site Boundary |
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Project Organisation Chart |
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Sample of Result Tables |
Appendix D |
Documentation of Suspension of 24-hr TSP Monitoring at AM5 |
Appendix E |
Flow Chart of Complaint Response Procedures |
Appendix F |
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