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Cheong Station Overrun

 

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Contract Specific EM&A Manual

(Version 7)

July 2007

Report no: 01273R0017

 

 

 

 

Hyder Consulting Ltd

COI Number 126012

47th Floor, Hopewell Centre, 183 Queens Road East, Wanchai, Hong Kong

Tel: +852 2911 2233   Fax: +852 2805 5028   www.hyderconsulting.com

Joint Venture or Associate logo(s) —>

 

 

 


 

 

Client logo(s) —>

 

 

 

Kowloon Southern Link – KDB300 and

KDB400 Tunnels, Jordan Road to Nam

Cheong Station Overrun

 

 

Contract Specific EM&A Manual

 

Author:

Various

 

Checker:

Sarah James

 

Approver:

Adi Lee

 

 

Report no:

01273R0017

 

 

Date:

July 2007


This report has been prepared for  in accordance with the terms and conditions of China State Construction Engineering Corporate appointment for Kowloon Southern Link KDB300 & KDB400 Tunnels, Jordan Road to Nam Cheong Station Overrun - Environmental Monitoring and Audit in September 2005. Hyder Consulting Ltd (Incorporated in Hong Kong with limited liability—COI Number 126012) cannot accept any responsibility for any use of or reliance on the contents of this report by any third party.

Text Box: Certified by Environmental Team Leader
Mr. Adi Lee


Contents

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

 



List of Tables

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

 

 


1                                Introduction

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.

2                                The Purposes of the Manual

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.

3                                Objective of the EM&A Programme

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.

4                                Organisation for the Environmental Monitoring and Audit Works

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.

 


5                                Environmental Monitoring and Audit Requirements

5.1                         General

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 Levels

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.


Event and Action Plans

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.

Site Inspections

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.

Reporting

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.

Cessation of EM&A

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.

5.2                         Air Quality

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

 


Text Box: Circulation TowerText Box: *AM4 is relocated to AM4a due to site constraints.Figure 5-1           Location of Air Monitoring Stations


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


Text Box: Circulation TowerFigure 5-2           Ambient and Continuous Noise Monitoring Stations


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.

5.4                         Groundwater Quality

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.

5.4.1                  Baseline Monitoring

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 to 0.25

Pb

0.001

0.1 to 0.25

Zn

0.01

0.1 to 0.25

Hg

APHA3112B

0.0005

0.001

Total Toxic Metals

N/A

N/A

N/A

0.22 to 1.6

 

 

 

 

 

 

 

 

 

 

 

 

 

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 Collection

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.

5.4.2                  Impact Monitoring

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.

Event and Action Plan

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

 

 


6                                ENVIRONMENTAL SITE AUDIT

6.1                         Site Inspection

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

6.3                         Environmental Complaints

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

 


7                                Reporting

7.1                         General

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.

7.4                         Monthly EM&A Reports

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.


First Monthly EM&A Report

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.

Subsequent EM&A Reports

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.

Final EM&A Review Reports

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.

7.5                         Data Keeping

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.



Appendix A

 

 

Construction Programme and Site Boundary

 

 

 


Appendix B

 

 

Project Organisation Chart

 

 

 


Appendix C

 

 

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

 

 

Sample of Complaint Proforma