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 – April 2021

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

12 May 2021

TCS00975/18/600/R0536v2

My signature

Martin Li

(Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

11 May 2021

First Submission

2

12 May 2021

Amended against IEC’s comments

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

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 29th Monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1st to 30th April 2021 (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  Predrilling, Pilling Work at Portion I

Ÿ  Precast Pier and box girder installation at Portion II

Ÿ  Stage Concrete for pile caps at portion II

Ÿ  ABWF works, E&M Work and External Work at Portion V Plant Room Building

Ÿ  1, 2, 3 and 4 round arch rib segment assembly

Ÿ  Precast – Pier fabrication for Pier W5

 

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

Ÿ  Excavation (Portion III,VI)

Ÿ  Drainage Installation (Portion VI)

Ÿ  Footing construction(Portion VI)

Ÿ  Excavation & RC works (Superstructure) (Portion III)

Ÿ  RC construction for U-trough(Portion III)

Ÿ  Seawall modification

Ÿ  ELS & manhole construction at SMH012 &SMH011

Ÿ  Noise barrier installation(Portion VI)

 

 

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

42

24-Hr TSP

6

Construction Noise

Leq (30min) Daytime

15

Leq (5min) Evening(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 monitoring exceedance was recorded in this Reporting Period. For construction noise monitoring, one noise complaint (which triggered Action Level) 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

1

0

Under Investigation

To be provided in next report.

Leq5min Evening

0

0

--

--

Water Quality (Marine Water)

DO

0

0

--

--

Turbidity

0

0

--

--

SS

0

0

--

--

 

Environmental Complaint            

ES10            In the reporting period, two (2) 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 – 30 April 2021

1

0

16

NA

NA

2

2

11

Water

Not Project Related

Noise

Under Investigation

 

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 – 30 April 2021

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 – 30 April 2021

1

0

0

NA

NA

2

0

0

NA

NA

 

Reporting Change

ES12            There is no reporting change made for this monthly report.

 

Site Inspection by External Parties

ES13            No site inspection was undertaken by AFCD within the Reporting Period. EPD inspection was undertaken on 13, 22 and 28 April 2021.

 

Future Key Issues

ES14            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.

 

ES15            Construction noise would be the key environmental issue as Lohas Park Phase 4 & 6 were already available for resident occupation. The 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   3

1.1            Project Background   3

1.2            Report Structure  3

2.    Project Organization and Construction progress and Submission   5

2.1            Project Organization   5

2.2            Construction Progress  6

2.3            Summary of Environmental Submissions  7

3.    Summary of Environmental Monitoring Programmes and Requirements  9

3.1            General  9

3.2            Monitoring Parameters  9

3.3            Monitoring Locations  9

3.4            Monitoring Frequency and Period   10

3.5            Monitoring Equipment  11

3.6            Monitoring Procedures  12

3.7            Determination of Action/Limit (A/L) Levels  15

3.8            Data Management and Data QA/QC Control  17

4.    Air Quality Monitoring   18

4.1            General  18

4.2            Results of Air Quality Monitoring in the Reporting Month   18

5.    Construction Noise Monitoring   19

5.1            General  19

5.2            Results of Noise Monitoring   19

6.    Water Quality Monitoring   20

6.1            General  20

7.    Waste Management   21

7.1            General Waste Management  21

7.2            Records of Waste Quantities  21

8.    Site Inspection   22

8.1            Requirements  22

8.2            Findings / Deficiencies During the Reporting Month   22

8.3            Implementation Status of Surface Runoff Mitigation Measures  23

9.    Landfill Gas Monitoring   24

9.1            General Requirement  24

9.2            Limit Levels and Event and Action Plan   24

9.3            Landfill Gas Monitoring   24

10.  Environmental Complaint and Non-Compliance   26

10.1          Environmental Complaint, Summons and Prosecution   26

11.  Implementation Status of Mitigation Measures  27

11.1          General Requirements  27

11.2          Tentative Construction Activities in the Coming Month   27

11.3          Impact Forecast  28

12.  Conclusions and Recommendations  29

12.1          Conclusions  29

12.2          Recommendations  29

 

 


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

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-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 9-2           Summary of Landfill Gas Measurement Results

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

 

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)

 

 


 

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 29th Monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1st to 30th April 2021 (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