Job No.: TCS00975/18

 

 

 

 

 

 

 

 

 

CEDD Contract Agreement No. EDO/04/2018 -

Environmental Team for Cross Bay Link, Tseung Kwan O

 

 

 

 

 

 

 

 

 

Monthly Environmental Monitoring & Auditing Report of the Project ¡V July 2024

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

 14 August 2024

TCS00975/18/600/R0851v1

Martin Li

(Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

12 August 2024

First Submission

2

14 August 2024

Amended as per IEC¡¦s comment

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            Civil Engineering and Development Department (hereafter referred as ¡§CEDD¡¨) is the Project Proponent and the Permit Holder of the Project Cross Bay Link, Tseung Kwan O (hereinafter referred as ¡§the Project¡¨) which is a Designated Project to be implemented under Environmental Permit number EP-459/2013 (hereinafter referred as ¡§the EP-459/2013¡¨ or ¡§the EP¡¨).

 

ES02            AUES was awarded the CEDD Contract Agreement No. EDO/04/2018 - Environmental Team for Cross Bay Link, Tseung Kwan O (hereinafter called ¡§the Service Contract¡¨). The Services under the Service Contract is to provide environmental monitoring and audit (EM&A) services for the Works Contracts pursuant to the requirement of Environmental Team (ET) under the Approved EM&A Manual to ensure that the environmental performance of the Works Contracts comply with the requirement specified in the EM&A Manual and EIA Report of Agreement No. CE 43/2008 (HY) Cross Bay Link, Tseung Kwan O - Investigation and other relevant statutory requirements.

 

ES03            To facilitate management, the proposed Works of the project was divided into two Civil Engineering and Development Department (CEDD) Works contracts included Contract 1 (Contract No. NE/2017/07) and Contract 2 (Contract No. NE/2017/08). The date for commencement of Contract 1 was 3rd December 2018 while the date for commencement of Contract 2 was 17th January 2019.

 

ES04            According to the Approved Environmental Monitoring & Audit (EM&A) Manual, air quality, noise and water quality monitoring are required to be conducted during the construction phase of the Project.  As part of the EM&A programme, baseline monitoring shall undertake before the Project construction work commencement to determine the ambient environment condition. The baseline air quality, background noise and water quality monitoring has been carried out between 21st September 2018 and 13th November 2018 at the designated and interim locations.  The baseline monitoring report under the EP-459/2013 has been compiled by the ET and verified by Independent Environmental Checker (hereinafter the ¡§IEC¡¦) prior submitted to EPD on 19th November 2018 for endorsement.

 

ES05            This is the 68th Monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 July 2024 (hereinafter ¡¥the Reporting Period¡¦).

 

Construction works conducted at the reporting month

ES06            The major construction activities of Contract 1 (Contract No. NE/2017/07) undertaken in this Reporting Period are:-

Ÿ  Establishment defect rectification works

 

ES07            The major construction activities of Contract 2 (Contract No. NE/2017/08) undertaken in this Reporting Period are:-

Ÿ  SENB rectification at At-Grade Road and Wan O Road

Ÿ  SENB rectification at Portion III, U-trough and Elevated Deck

Ÿ  Footpath and cycle track paving work

 

Environmental Monitoring and Audit Activities

ES08            Environmental monitoring activities under the EM&A program in this Reporting Period are summarized in the following table.  

 

Table ES-4    Summary Environmental Monitoring Activities Undertaken in the Reporting Period

Issues

Environmental Monitoring Parameters / Inspection

Sessions

Air Quality

1-Hour TSP

48

24-Hr TSP

10

Construction Noise

Leq (30min) Daytime

20

Leq (5min) Evening(Note 1)

0

Leq (5min) Night(Note 1)

0

Water Quality

Marine Water Sampling(Note 2) (Note 3)

0

Inspection / Audit

Contract 1

ET Regular Environmental Site Inspection

4

Joint site audit with Project Consultant and IEC

1

Contract 2

ET Regular Environmental Site Inspection

4

Joint site audit with Project Consultant and IEC

1

Note 1     Total sessions are counted by every 3 consecutive Leq5min

Note 2     Total sessions are counted by monitoring days

Note 3    Since the marine construction works that requires marine water quality monitoring as stated in the EM&A Manual were completed, the impact water quality monitoring was ceased with effect from 1 May 2020.

 

Breach of Action and Limit (A/L) Levels

ES09            No air quality and construction noise monitoring exceedance was recorded in this Reporting Period.  The statistics of environmental exceedance and investigation of exceedance are summarized in the following table.

Table ES-5    Summary Environmental Monitoring Parameter Exceedance in the Reporting Period

Environmental Issues

Monitoring Parameters

Action Level

Limit Level

Event & Action

Investigation Results

Corrective Actions

Air Quality

1-Hour TSP

0

0

--

--

24-Hr TSP

0

0

--

--

Construction Noise

Leq30min Daytime

0

0

--

--

Leq5min Evening

0

0

--

--

Leq5min Night

0

0

--

--

Water Quality (Marine Water)

DO

0

0

--

--

Turbidity

0

0

--

--

SS

0

0

--

--

 

Environmental Complaint            

ES10            In the reporting period, no environmental complaints were recorded for the Project. The statistics of environmental complaint are summarized in the following table.

 

Table ES-6    Summary Environmental Complaint Records in the Reporting Period

Reporting Period

Contract

Environmental Complaint Statistics

Related with the Works Contract(s)

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2024

1

0

33

NA

NA

2

0

26

NA

NA

 

Notification of Summons and Successful Prosecutions

ES11            No environmental summons or prosecutions was received in this Reporting Period for the Project.  The statistics of environmental summons or prosecutions are summarized in the following tables.

Table ES-7    Summary Environmental Summons Records in the Reporting Period

Reporting Period

Contract

Environmental Summons Statistics

Related with the Works Contract(s)

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2024

1

0

0

NA

NA

2

0

0

NA

NA

 

Table ES-8    Summary Environmental Prosecutions Records in the Reporting Period

Reporting Period

Contract

Environmental Prosecution Statistics

Related with the Works Contract(s)

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2024

1

0

0

NA

NA

2

0

0

NA

NA

 

Reporting Change

ES12            No report change is made in the reporting period

 

Future Key Issues

ES13            Due to wet season has approached, the Contractor was reminded that all the works being undertaken must fulfill environmental statutory requirements and to paid attention to water quality mitigation measures to prevent surface runoff into nearby water bodies or public areas.

 

ES14            Although opening of Cross Bay Link was held in early December 2022, construction noise from the remaining work of the Project would be the key environmental issue as the work areas are located near Lohas Park. Noise mitigation measures such as use of quiet plants and installation of temporary noise barrier at the construction noise predominate area should be fully implemented in accordance with the EM&A requirement.

 

 

 

 


Table of Contents

1.    Introduction   4

1.1            Project Background   4

1.2            Report Structure  4

2.    Project Organization and Construction progress and Submission   6

2.1            Project Organization   6

2.2            Construction Progress  7

2.3            Summary of Environmental Submissions  8

3.    Summary of Environmental Monitoring Programmes and Requirements  10

3.1            General  10

3.2            Monitoring Parameters  10

3.3            Monitoring Locations  10

3.4            Monitoring Frequency and Period   12

3.5            Monitoring Equipment  12

3.6            Monitoring Procedures  14

3.7            Determination of Action/Limit (A/L) Levels  17

3.8            Data Management and Data QA/QC Control  18

4.    Air Quality Monitoring   19

4.1            General  19

4.2            Results of Air Quality Monitoring in the Reporting Month   19

5.    Construction Noise Monitoring   21

5.1            General  21

5.2            Results of Noise Monitoring   21

6.    Water Quality Monitoring   22

6.1            General  22

7.    Waste Management   23

7.1            General Waste Management  23

7.2            Records of Waste Quantities  23

8.    Site Inspection   24

8.1            Requirements  24

8.2            Findings / Deficiencies During the Reporting Month   24

8.3            Implementation Status of Surface Runoff Mitigation Measures  25

8.4            Monitoring of Planting Works during Establishment period   26

9.    Landfill Gas Monitoring   26

9.1            General Requirement  26

9.2            Limit Levels and Event and Action Plan   26

9.3            Landfill Gas Monitoring   26

10.  Environmental Complaint and Non-Compliance   27

10.1          Environmental Complaint, Summons and Prosecution   27

11.  Implementation Status of Mitigation Measures  28

11.1          General Requirements  28

11.2          Tentative Construction Activities in the Coming Month   28

11.3          Impact Forecast  29

12.  Conclusions and Recommendations  30

12.1          Conclusions  30

12.2          Recommendations  30

 

 


List of TABLES

Table 2-1           Documents Submission under Environmental Permit Requirement

Table 2-2           Status of Environmental Licenses and Permits of the Project Works (Contract 1)

Table 2-3          Status of Environmental Licenses and Permits of the Project Works (Contract 2)

Table 3-1           Summary of EM&A Requirements

Table 3-2           Designated Air Quality Monitoring Location recommended in EM&A Manual

Table 3-3           Designated Construction Noise Monitoring Location recommended in EM&A Manual

Table 3-4           Designated and interim alternative location for air quality and noise monitoring in the Reporting Period

Table 3-5           Location of Water Quality Monitoring Station

Table 3-6           Air Quality Monitoring Equipment

Table 3-7           Construction Noise Monitoring Equipment

Table 3-8           Water Monitoring Equipment

Table 3-9           Testing Method and Reporting Limit of the Chemical Analysis

Table 3-10         Action and Limit Levels for Air Quality

Table 3-11         Action and Limit Levels for Construction Noise

Table 3-12         Action and Limit Levels for Water Quality

Table 4-1           1-Hour TSP Air Quality Impact Monitoring results for AM4 and 24-Hour TSP Air Quality Impact Monitoring results for AM5

Table 4-2           1-Hour TSP Air Quality Impact Monitoring results for AM2 and 24-Hour TSP Air Quality Impact Monitoring Results for AM2b

Table 4-3           1-Hour TSP Air Quality Impact Monitoring results for AM3

Table 5-1           Daytime Construction Noise Impact Monitoring results at CNMS-1

Table 5-2           Daytime Construction Noise Impact Monitoring results at CNMS-2

Table 5-3           Daytime Construction Noise Impact Monitoring results at CNMS-3

Table 5-4           Daytime Construction Noise Impact Monitoring results at CNMS-5

Table 7-1           Summary of Quantities of Inert C&D Materials

Table 7-2           Summary of Quantities of C&D Wastes

Table 8-1           Site Observations of Contract 1

Table 8-2           Site Observations of Contract 1

Table 9-1           Actions in the Event of Landfill Gas Being Detected in Excavations

Table 10-1         Statistical Summary of Environmental Complaints

Table 10-2         Statistical Summary of Environmental Summons

Table 10-3         Statistical Summary of Environmental Prosecution

Table 11-1         Environmental Mitigation Measures in the Reporting Month

Table 11-2         Noise Mitigation Measures during Operation of the Project

 

 

List of Appendices

Appendix A       Project Layout Plan

Appendix B       Project Organization Chart & Contact Details of Key Personnel

Appendix C       3-Month Rolling Construction Program

Appendix D       Monitoring Location (Air Quality, Noise and Water Quality)

Appendix E       Event and Action Plan

Appendix F       Impact Monitoring Schedule of the Reporting Month and Coming Month

Appendix G       Calibration Certificates of Equipment and the Accreditation Laboratory Certificate

Appendix H      Database of Monitoring Results

Appendix I        Graphical plots of Monitoring Results

Appendix J        Meteorological Data

Appendix K       Waste Flow Table

Appendix L       Implementation Record of Water Mitigation Measures in the Reporting Month

Appendix M      Implementation Schedule for Environmental Mitigation Measures (ISEMM)

Appendix O       As-built Drawing of the low noise road surfacing and semi-enclosure noise barrier

Appendix P       Establishment Inspection checklist for Planting plants and Planting area


 

1.      Introduction

1.1                   Project Background

 

1.1.1             Civil Engineering and Development Department (hereafter referred as ¡§CEDD¡¨) is the Project Proponent and the Permit Holder of the Project Cross Bay Link, Tseung Kwan O (hereinafter referred as ¡§the Project¡¨) which is a Designated Project to be implemented under Environmental Permit number EP-459/2013 (hereinafter referred as ¡§the EP-459/2013¡¨ or ¡§the EP¡¨).

 

1.1.2             AUES was awarded the CEDD Contract Agreement No. EDO/04/2018 - Environmental Team for Cross Bay Link, Tseung Kwan O (hereinafter called ¡§the Service Contract¡¨). The Services under the Service Contract is to provide environmental monitoring and audit (EM&A) services for the Works Contracts pursuant to the requirement of Environmental Team (ET) under the Approved EM&A Manual to ensure that the environmental performance of the Works Contracts comply with the requirement specified in the EM&A Manual and EIA Report of Agreement No. CE 43/2008 (HY) Cross Bay Link, Tseung Kwan O - Investigation and other relevant statutory requirements.

 

1.1.3             To facilitate management, the proposed Works of Cross Bay Link, Tseung Kwan O (hereinafter called ¡§the Project¡¦) was divided into two Civil Engineering and Development Department (CEDD) Works contracts included Contract 1 (Contract No. NE/2017/07) and Contract 2 (Contract No. NE/2017/08). The details of each contract Works are summarized below and the delineation of each contract is shown in Appendix A.

Contract 1 (Contract No. NE/2017/07)

(i)            400m section of marine viaducts of steel deck sections including the Eternal Arch Bridge;

(ii)          600m section of marine viaducts of concrete deck sections;

(iii)        An E&M Plantroom and associated building services; and

(iv)        E&M provisions.

Contract 2 (Contract No. NE/2017/08)

(i)            Elevated deck structures along Road D9;

(ii)          A 210m section of cycle track and footpath ramp bridge;

(iii)        A 630m section of noise semi-enclosure covering the entire length of Road D9, and;

(iv)        Lift, staircase, modification of existing seawall along Road D9, landscaping and miscellaneous works.

 

1.1.4             The date for commencement of Contract 1 is 3rd December 2018 while the date for commencement of Contract 2 is 17th January 2019.

 

1.1.5             As part of the EM&A programme, baseline monitoring shall be undertaken before the Project construction work commencement to determine the ambient environmental condition. The baseline air quality, background noise and water quality monitoring has been carried out between 21st September 2018 and 13th November 2018 at the designated and interim locations.  The baseline monitoring report under the EP-459/2013 has been compiled by the ET and verified by Independent Environmental Checker (hereinafter the ¡§IEC¡¦) prior submitted to EPD on 19th November 2018 for endorsement.

 

1.1.6             This is the 68th Monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 July 2024 (hereinafter ¡¥the Reporting Period¡¦).

 

1.2                   Report Structure

1.2.1             The Environmental Monitoring and Audit (EM&A) Monthly Report is structured into the following sections:-

Section 1

Introduction

Section 2

Project Organization and Construction Progress

Section 3

Summary of Impact Monitoring Requirements

Section 4

Air Quality Monitoring

Section 5

Construction Noise Monitoring

Section 6

Water Quality Monitoring

Section 7

Waste Management

Section 8

Site Inspections

Section 9

Landfill Gas Monitoring

Section 10

Environmental Complaints and Non-Compliance

Section 11

Implementation Status of Mitigation Measures

Section 12

Conclusions and Recommendations

 


2.      Project Organization and Construction progress and Submission

2.1                   Project Organization

2.1.1             The project organization is shown in Appendix B.  The responsibilities of respective parties are:

 

The Project Consultant

2.1.2             The Project Consultant (hereinafter ¡§the Consultant¡¨) is responsible for overseeing the construction works and for ensuring that the works are undertaken by the Contractor in accordance with the specification and contract requirements. The duties and responsibilities of the Consultant with respect to EM&A are:

¡P                Monitor the Contractors¡¦ compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and their effectiveness

¡P                Monitor Contractors¡¦, ET¡¦s and IEC¡¦s compliance with the requirements in the Environmental Permit (EP) and EM&A Manual

¡P                Facilitate ET¡¦s implementation of the EM&A programme

¡P                Participate in joint site inspection by the ET and IEC

¡P                Oversee the implementation of the agreed Event / Action Plan in the event of any exceedance

¡P                Adhere to the procedures for carrying out complaint investigation

 

The Contractor(s) of Works Contract(s)

2.1.3                 There will be one contractor for each individual works contract.  The Contractor(s) should report to the Consultant.  The duties and responsibilities of the Contractor are:

¡P           Comply with the relevant contract conditions and specifications on environmental protection

¡P           Participate in the site inspections by the ET and IEC, and undertake any corrective actions

¡P           Provide information / advice to the ET regarding works programme and activities which may contribute to the generation of adverse environmental impacts

¡P           Submit proposals on mitigation measures in case of exceedances of Action and Limit levels in accordance with the Event / Action Plans

¡P           Implement measures to reduce impact where Action and Limit levels are exceeded

¡P           Adhere to the procedures for carrying out complaint investigation

 

Environmental Team (ET)

2.1.4                 ET shall not be in any way an associated body of the Contractor(s) and employed by the Permit Holder (i.e., CEDD) to conduct the EM&A programme.  The ET should be managed by the ET Leader. The ET Leader shall be a person who has at least 7 years¡¦ experience in EM&A and has relevant professional qualifications. Suitable qualified staff should be included in the ET, and resources for the implementation of the EM&A programme should be allocated in time under the Contract(s), to enable fulfillment of the Project¡¦s EM&A requirements as specified in the EM&A Manual during construction of the Project.  ET shall report to the Project Proponent and the duties shall include:

¡P           Conduct baseline monitoring, impact monitoring and post-construction monitoring and the associated in-situ and laboratory tests to monitor various environmental parameters as required in the EM&A Manual and the EP

¡P           Analyze the environmental monitoring and audit data, review the success of EM&A programme and the adequacy of mitigation measures implemented, confirm the validity of the EIA predictions and identify any adverse environmental impacts arising

¡P           Carry out regular site inspection to investigate and audit the Contractors¡¦ site practice, equipment/plant and work methodologies with respect to pollution control and environmental mitigation, and effect proactive action to pre-empt problems

¡P           Monitor compliance with conditions in the EP, environmental protection, pollution prevention and control regulations and contract specifications

¡P           Audit environmental conditions on site

¡P           Report on the environmental monitoring and audit results to EPD, the Consultant, the IEC and Contractor(s) or their delegated representatives

¡P           Recommend suitable mitigation measures to the Contractor in the case of exceedance of Action and Limit levels in accordance with the Event and Action Plans

¡P           Liaise with the IEC on all environmental performance matters and timely submit all relevant EM&A proforma for approval by IEC

¡P           Advise the Contractor(s) on environmental improvement, awareness, enhancement measures etc., on site

¡P           Adhere to the procedures for carrying out complaint investigation

¡P           Set up a dedicated web site where the project information, all environmental monitoring and audit data and reports described in Condition 5.2 of the EP, and all finalized submissions and plans required under the EP are to be placed for public inspection

¡P           Upload the environmental monitoring results to the dedicated web site in accordance with requirements of the EP and EM&A Manual

¡P           To carry out the Operational Phase Landfill Gas monitoring during effluent drainage system maintenance for one year

 

Independent Environmental Checker (IEC)

2.1.5                 IEC will be employed for this Project.  The Independent Environmental Checker (IEC) should not be in any way an associated body of the Contractor(s) or the ET for the Project.  The IEC should be employed by the Permit Holder (i.e., CEDD) prior to the commencement of the construction of the Project.  The IEC should have at least 7 years¡¦ experience in EM&A and have relevant professional qualifications.  The duty of IEC should be:

¡P           Provide proactive advice to the Project Consultant and the Project Proponent on EM&A matters related to the project, independent from the management of construction works, but empowered to audit the environmental performance of construction

¡P           Review and audit all aspects of the EM&A programme implemented by the ET

¡P           Review and verify the monitoring data and all submissions in connection with the EP and EM&A Manual submitted by the ET

¡P           Arrange and conduct regular, at least monthly site inspections of the works during construction phase, and ad hoc inspections if significant environmental problems are identified

¡P           Check compliance with the agreed Event / Action Plan in the event of any exceedance

¡P           Check compliance with the procedures for carrying out complaint investigation

¡P           Check the effectiveness of corrective measures

¡P           Feedback audit results to ET by signing off relevant EM&A proforma

¡P           Check that the mitigation measures are effectively implemented

¡P           Report the works conducted, the findings, recommendation and improvement of the site inspections, after reviewing ET¡¦s and Contractor¡¦s works, and advices to the Project Consultant and Project Proponent on a monthly basis

 

2.2                   Construction Progress

2.2.1             3-month rolling construction program of the each Works Contract is enclosed in Appendix C; and the major construction activities undertaken in the Reporting Period is presented in below sub-sections.

Contract 1 (Contract No. NE/2017/07)

2.2.2             The major construction activities of Contract 1 undertaken in this Reporting Period are:-

Ÿ  Establishment defect rectification works

 

Contract 2 (Contract No. NE/2017/08)

2.2.3             The major construction activities of Contract 2 undertaken in this Reporting Period are:-

Ÿ  SENB rectification at At-Grade Road and Wan O Road

Ÿ  SENB rectification at Portion III, U-trough and Elevated Deck

Ÿ  Footpath and cycle track paving work

2.3                   Summary of Environmental Submissions

2.3.1             The required documents list below shall be to submit to EPD for retention:

Table 2-1      Documents Submission under Environmental Permit Requirement

EP condition

Submission to EPD