Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

Monthly Environmental Monitoring and Audit Report (No.48) ¡V July 2017

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

10 August 2017

TCS00694/13/600/R1132v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 August 2017

First Submission

2

10 August 2017

Amended according to the IEC¡¦s comment on 9 August 2017

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            This is the 48th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 July 2017 (hereinafter ¡¥the Reporting Period¡¦).

 

Environmental Monitoring and Audit Activities

ES02            To facilitate the project management and implementation, Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project is divided to seven CEDD contracts including Contract 2 (CV/2012/08), Contract 3 (CV/2012/09), Contract 4 (NE/2014/02), Contract 5 (CV/2013/03), Contract 6 (CV/2013/08) and Contract 7 (NE/2014/03) and an ArshSD contract (Contract SS C505).

 

ES03            In the Reporting Period, the major construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project included Contract 2, Contract 3, Contract 4, Contract 6, Contract 7 and Contract SS C505.  Environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table.

 

Environmental Aspect

Environmental Monitoring Parameters / Inspection

Reporting Period

Number of Monitoring Locations to undertake

Total Occasions 

Air Quality

1-hour TSP

9

135

24-hour TSP

9

45

Construction Noise

Leq(30min) Daytime

10

40

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

13 Scheduled & 0 extra

WM2A(a) & WM2A-Cx

13 Scheduled & 6 extra

WM2B & WM2B-C

(*) 13 Scheduled

WM3x &WM3-C

13 Scheduled & 1 extra

WM4, WM4-CA &WM4-CB

13 Scheduled & 3 extra

Ecology

Woodland compensation

i)     General Health condition of planted species

ii)   Survival of planted species

9 Quadrats

0

Joint Site Inspection / Audit

IEC, ET, the Contractor and RE joint site Environmental Inspection and Auditing

Contract 2

4

Contract 3

4

Contract 4 (#)

4

Contract 6

4

Contract 7

4

Contract SS C505 (#)

4

Note: Extra monitoring day was due to measurement results exceedance

(#) IEC only joined one (1) event of site inspection for Contracts 4 and SS C505.

(*) Water sampling was unable to carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm)

 

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no construction noise exceedance was recorded.  For air quality monitoring, one (1) Action Level exceedance of 24-hour TSP was recorded at AM5a.  Furthermore, for water quality monitoring, twenty-eight (28) Limit Level exceedances were recorded under the Project.  The summary of exceedance in the Reporting Period is shown below.

 

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation Result

Project related exceedance

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

--

24-hour TSP

1

0

1

In progress

In progress

TBA

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

--

Water Quality

DO

0

0

0

-

--

--

Turbidity

0

13

13

All exceedances were not project-related

0

The Contractors were reminded to  implement water quality mitigation measures in accordance with ISEMM of the EM&A Manual

SS

0

15

15

0

 

Environmental Complaint

ES05            In this Reporting Period, no environmental complaint was received under the EM&A programme.

Notification of Summons and Successful Prosecutions

ES06            As notified by the RE in the Reporting Period, a summons (ref. no. FLS7210/2017 dated 20 June 2017) was issued to the Contractor of Contract 2 (Dragages Hong Kong Limited) for contravening the Water Pollution Control (General) Regulations.   During hearing on 25 July 2017, DHK pleaded guilty to the EPD summons ¡V failing to report discharge within 24 hours of its occurrence.  Therefore, a summons and prosecutions was registered for Contract 2 under the EM&A programme in the Reporting Period.

Reporting Change

ES07            No reporting changes were made in the Reporting Period.

 

Site Inspection

ES08            In this Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 2 has been carried out by the RE, IEC, ET and the Contractor on 7, 14, 21 and 28 July 2017.  No non-compliance was noted during the site inspection.  

 

ES09            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 3 has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 19 and 27 July 2017.  No non-compliance was noted during the site inspection.  

 

ES10            In the Reporting, joint site inspection for Contract 4 to evaluate the site environmental performance has been carried out by the RE, ET and the Contractor on 7, 14, 21 and 24 July 2017  in which IEC joined the site inspection on 24 July 2017.  No non-compliance was noted.  

 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 20 and 27 July 2017.  No non-compliance was noted during the site inspection.  

 

ES12            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 7 has been carried out by the RE, IEC, ET and the Contractor on  7, 14, 18 and 28 July 2017. No non-compliance was noted during the site inspection.   

 

ES13            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, ET and the Contractor on 5, 12, 19 and 26 July 2017  in which IEC joined the site inspection on 26 July 2017.  No non-compliance was noted during the site inspection.  

 

Future Key Issues

ES14            During wet season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.

 

ES15            In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

ES16            Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.

 

ES17            Since most of construction sites under the Project are located adjacent to villages, the Contractors should fully implement air quality mitigation measures to reduce construction dust emission.

 


 

 

 

Table of Contents

1     Introduction   1

1.1            Project Background   1

1.2            Report Structure  1

2     Project Organization and Construction progress  3

2.1            Construction Contract Packaging   3

2.2            Project Organization   5

2.3            Concurrent Projects  7

2.4            Construction Progress  7

2.5            Summary of Environmental Submissions  9

3     Summary of Impact Monitoring Requirements  14

3.1            General  14

3.2            Monitoring Parameters  14

3.3            Monitoring Locations  14

3.4            Monitoring Frequency and Period   16

3.5            Monitoring Equipment  17

3.6            Monitoring Methodology   19

3.7            Equipment Calibration   21

3.8            Derivation of Action/Limit (A/L) Levels  21

3.9            Data Management and Data QA/QC Control  22

4     Air Quality Monitoring   23

4.1            General  23

4.2            Air Quality Monitoring Results  23

5     Construction Noise Monitoring   26

5.1            General  26

5.2            Noise Monitoring Results (normal daytime) 26

6     Water Quality Monitoring   27

6.1            General  27

6.2            Results of Water Quality Monitoring   27

7     Ecology Monitoring   32

7.1            General  32

8     Waste Management   33

8.1            General Waste Management  33

8.2            Records of Waste Quantities  33

9     Site Inspection   34

9.1            requirements  34

9.2            Findings / Deficiencies During the Reporting Month   34

10   Environmental Complaint and Non-Compliance   38

10.1          Environmental Complaint, Summons and Prosecution   38

11   Implementation Status of Mitigation Measures  41

11.1          General Requirements  41

11.2          Tentative Construction Activities in the Coming Month   41

11.3          Key Issues for the Coming Month   43

12   Conclusions and Recommendations  44

12.1          Conclusions  44

12.2          Recommendations  44

 


List of TABLES

Table 2-1        Status of Environmental Licenses and Permits of the Contracts

Table 3-1        Summary of EM&A Requirements

Table 3-2        Impact Monitoring Stations - Air Quality

Table 3-3        Impact Monitoring Stations - Construction Noise

Table 3-4        Impact Monitoring Stations - Water Quality

Table 3-5        Air Quality Monitoring Equipment

Table 3-6        Construction Noise Monitoring Equipment

Table 3-7        Water Quality Monitoring Equipment

Table 3-8        Action and Limit Levels for Air Quality Monitoring

Table 3-9        Action and Limit Levels for Construction Noise

Table 3-10      Action and Limit Levels for Water Quality

Table 4-1        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM1a

Table 4-2        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM2

Table 4-3        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM3

Table 4-4        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM4B

Table 4-5        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM5a

Table 4-6        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM6

Table 4-7        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM7a

Table 4-8        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM8

Table 4-9        Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM9b

Table 5-1        Summary of Construction Noise Monitoring Results

Table 5-2        Summary of Construction Noise Monitoring Results

Table 6-1        Summary of Water Quality Monitoring Results for Contract 2 and 3

Table 6-2        Summary of Water Quality Monitoring Results for Contract 6 and SS C505

Table 6-3        Summary of Water Quality Monitoring Results for Contract 6

Table 6-4        Summary of Water Quality Monitoring Results for Contract 2 and 6

Table 6-5        Action and Limit (A/L) Levels Exceedance Recorded

Table 6-6        Summary of Water Quality Exceedance in the Reporting Period

Table 8-1        Summary of Quantities of Inert C&D Materials

Table 8-2        Summary of Quantities of C&D Wastes

Table 9-1        Site Observations for Contract 2

Table 9-2        Site Observations for Contract 3

Table 9-3        Site Observations for Contract 4

Table 9-4        Site Observations for Contract 5

Table 9-5        Site Observations for Contract 6

Table 9-6        Site Observations for Contract SS C505

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

 

 

 

 

List of Appendices

Appendix A    Layout Plan of the Project

Appendix B    Organization Chart

Appendix C    3-month rolling construction program

Appendix D    Designated Monitoring Locations as Recommended in the Approved EM&A Manual

Appendix E    Monitoring Locations for Impact Monitoring

Appendix F     Calibration Certificate of Monitoring Equipment and HOKLAS-accreditation Certificate of the Testing Laboratory

Appendix G    Event and Action Plan

Appendix H    Impact Monitoring Schedule

Appendix I     Database of Monitoring Result

Appendix J     Graphical Plots for Monitoring Result

Appendix K    Meteorological Data

Appendix L    Waste Flow Table

Appendix M   Implementation Schedule for Environmental Mitigation Measures

Appendix N    Investigation Report for Exceedance

 

 

 

 


1                    Introduction

1.1              Project Background

1.1.1                 Civil Engineering and Development Department is the Project Proponent and the Permit Holder of Agreement No. CE 45/2008 (CE) Liantang / Heung Yuen Wai Boundary Control Point and Associated Works, which is a Designated Project to be implemented under Environmental Permit number EP-404/2011/C granted on 12 March 2015 and the latest Environmental Permit number EP-404/2011/D granted on 20 January 2017.

 

1.1.2                 The Project consists of two main components: Construction of a Boundary Control Point (hereinafter referred as ¡§BCP¡¨); and Construction of a connecting road alignment.  Layout plan of the Project is shown in Appendix A.

 

1.1.3                 The proposed BCP is located at the boundary with Shenzhen near the existing Chuk Yuen Village, comprising a main passenger building with passenger and cargo processing facilities and the associated customs, transport and ancillary facilities.  The connecting road alignment consists of six main sections:

1)             Lin Ma Hang to Frontier Closed Area (FCA) Boundary ¡V this section comprises at-grade and viaducts and includes the improvement works at Lin Ma Hang Road;

2)             Ping Yeung to Wo Keng Shan ¡V this section stretches from the Frontier Closed Area Boundary to the tunnel portal at Cheung Shan and comprises at-grade and viaducts including an interchange at Ping Yeung;

3)             North Tunnel ¡V this section comprises the tunnel segment at Cheung Shan and includes a ventilation building at the portals on either end of the tunnel;

4)             Sha Tau Kok Road ¡V this section stretches from the tunnel portal at Wo Keng Shan to the tunnel portal south of Loi Tung and comprises at-grade and viaducts including an interchange at Sha Tau Kok and an administration building;

5)             South Tunnel ¡V this section comprises a tunnel segment that stretches from Loi Tung to Fanling and includes a ventilation building at the portals on either end of the tunnel as well as a ventilation building in the middle of the tunnel near Lau Shui Heung;

6)             Fanling ¡V this section comprises the at-grade, viaducts and interchange connection to the existing Fanling Highway.

 

1.1.4                 Action-United Environmental Services & Consulting has been commissioned as an Independent ET to implement the relevant EM&A program in accordance with the approved EM&A Manual, as well as the associated duties.  As part of the EM&A program, the baseline monitoring has carried out between 13 June 2013 and 12 July 2013 for all parameters including air quality, noise and water quality before construction work commencement.  The Baseline Monitoring Report summarized the key findings and the rationale behind determining a set of Action and Limit Levels (A/L Levels) from the baseline data.  Also, the Project baseline monitoring report which verified by the IEC has been submitted to EPD on 16 July 2013 for endorsement.  The major construction works of the Project was commenced on 16 August 2013 in accordance with the EP Section 5.3 stipulation.

 

1.1.5                 This is 48th monthly EM&A report presenting the monitoring results and inspection findings for reporting period from 1 to 31 July 2017.

 

1.2              Report Structure

1.2.1                 The Monthly Environmental Monitoring and Audit (EM&A) 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         Ecology Monitoring

Section 8         Waste Management

Section 9         Site Inspections

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

2.1              Construction Contract Packaging

2.1.1                 To facilitate the project management and implementation, the Project would be divided by the following contracts:

¡P              Contract 2 (CV/2012/08)

¡P              Contract 3 (CV/2012/09)

¡P              Contract 4 (NE/2014/02)

¡P              Contract 5 (CV/2013/03)

¡P              Contract 6 (CV/2013/08)

¡P              Contract 7 (NE/2014/03)

¡P              ArchSD Contract No. SS C505

 

2.1.2                 The details of each contracts is summarized below and the delineation of each contracts is shown in Appendix A.

 

Contract 2 (CV/2012/08)

2.1.3                 Contract 2 has awarded in December 2013 and construction work was commenced on 19 May 2014.  Major Scope of Work of the Contract 2 is listed below:

¡P                construction of an approximately 5.2km long dual two-lane connecting road (with about 0.4km of at-grade road and 4.8km of tunnel) connecting the Fanling Interchange with the proposed Sha Tau Kok Interchange;

¡P                construction of a ventilation adit tunnel and the mid-ventilation building;

¡P                construction of the north and south portal buildings of the Lung Shan Tunnel and their associated slope works;

¡P                provision and installation of ventilation system, E&M works and building services works for Lung Shan tunnel and Cheung Shan tunnel and their portal buildings;

¡P                construction of Tunnel Administration Building adjacent to Wo Keng Shan Road and the associated E&M and building services works; and

¡P                construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 3 (CV/2012/09)

2.1.4                 Contract 3 was awarded in July 2013 and construction work was commenced on 5 November 2013.  Major Scope of Work of the Contract 3 is listed below:

¡P                construction of four link roads connecting the existing Fanling Highway and the south portal of the Lung Shan Tunnel;

¡P                realignment of the existing Tai Wo Service Road West and Tai Wo Service Road East;

¡P                widening of the existing Fanling Highway (HyD¡¦s entrustment works);

¡P                demolishing existing Kiu Tau vehicular bridge and Kiu Tau footbridge and reconstruction of the existing Kiu Tau Footbridge (HyD¡¦s entrustment works); and

¡P                construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 4 (NE/2014/02)

2.1.5                 Contract 4 has awarded in mid-April 2016 and construction work was commenced on 2 May 2017.  The scope of work of the Contract 4 includes:

¡P                design, supply, delivery, installation, testing and commissioning of a traffic control and surveillance system for the connecting road linking up the Liantang / Heung Yuen Wai Boundary Control Point and the existing Fanling Highway.

 

Contract 5 (CV/2013/03)

2.1.6                 Contract 5 has awarded in April 2013 and construction work was commenced in August 2013.  Major Scope of Work of the Contract 5 is listed below:

¡P                site formation of about 23 hectares of land for the development of the BCP;

¡P                construction of an approximately 1.6 km long perimeter road at the BCP including a 175m long depressed road;

¡P                associated diversion/modification works at existing local roads and junctions including Lin Ma Hang Road;

¡P                construction of pedestrian subway linking the BCP to Lin Ma Hang Road;

¡P                provision of resite area with supporting infrastructure for reprovisioning of the affected village houses; and

¡P                construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 6 (CV/2013/08)

2.1.7                 Contract 6 has awarded in June 2015 and construction work was commenced on 23 October 2015.  Major Scope of Work of the Contract 6 would be included below:

Ÿ    construction of an approximately 4.6km long dual two-lane connecting road (with about 0.6km of at-grade road, 3.3km of viaduct and 0.7km of tunnel) connecting the BCP with the proposed Sha Tau Kok Road Interchange and the associated ventilation buildings;

Ÿ    associated diversion/modification works at access roads to the resite of Chuk Yuen Village;

Ÿ    provision of sewage collection, treatment and disposal facilities for the BCP and the resite of Chuk Yuen Village;

Ÿ    construction of a pedestrian subway linking the BCP to Lin Ma Hang Road;

Ÿ    provisioning of the affected facilities including Wo Keng Shan Road garden; and

Ÿ    construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 7 (NE/2014/03)

2.1.8                 Contract 7 has awarded in December 2015 and the construction works of Contract 7 was commenced on 15 February 2016.  Major Scope of Work of the Contract 7 would be included below:

Ÿ    construction of the Hong Kong Special Administrative Region (HKSAR) portion of four vehicular bridge

Ÿ    construction of one pedestrian bridge crossing Shenzhen (SZ) River (cross boundary bridges)

 

ArchSD Contract No. SS C505

2.1.9                 SS C505 has awarded in July 2015 and construction work was commenced on 1 September 2015.  Major Scope of Work of the SS C505 would be included below:

Ÿ    passenger-related facilities including processing kiosks and examination facilities for private cars and coaches, passenger clearance building and halls, the interior fitting works for the pedestrian bridge crossing Shenzhen River, etc.;

Ÿ    cargo processing facilities including kiosks for clearance of goods vehicles, customs inspection platforms, X-ray building, etc.;

Ÿ    accommodation for the facilities inside of the Government departments providing services in connection with the BCP;

Ÿ    transport-related facilities inside the BCP including road networks, public transport interchange, transport drop-off and pick-up areas, vehicle holding areas and associated road furniture etc;

Ÿ    a public carpark; and

Ÿ    other ancillary facilities such as sewerage and drainage, building services provisions and electronic systems, associated environmental mitigation measure and landscape works.

 

2.2              Project Organization

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

 

Civil Engineering and Development Department (CEDD)

2.2.2                 CEDD is the Project Proponent and the Permit Holder of the EP of the development of the Project and will assume overall responsibility for the project. An Independent Environmental Checker (IEC) shall be employed by CEDD to audit the results of the EM&A works carried out by the ET.

 

Architectural Services Department (ArchSD)

2.2.3                 ArchSD acts as the works agent for Development Bureau (DEVB), for Contract SS C505 Liantang/ Heung Yuen Wai Boundary Control Point (BCP) ¡V BCP Buildings and Associated Facilities.

 

Environmental Protection Department (EPD)

2.2.4                 EPD is the statutory enforcement body for environmental protection matters in Hong Kong.

 

Ronald Lu & Partners (Hong Kong) Ltd (The Architect)

2.2.5                 Ronald Lu & Partners (Hong Kong) Ltd is appointed by ArchSD as an Architect for Contract SS C505 Liantang/ Heung Yuen Wai Boundary Control Point (BCP) ¡V BCP Buildings and Associated Facilities.  It responsible for overseeing the construction works of Contract SS C505 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 Architect with respect to EM&A are:

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

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

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

Ÿ    Participate in joint site inspection by the ET and IEC

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

Ÿ    Adhere to the procedures for carrying out complaint investigation

Ÿ    Liaison with DSD, Engineer/Engineer¡¦s Representative, ET, IEC and the Contractor of the ¡§Construction of the DSD¡¦s Regulation of Shenzhen River Stage 4 (RSR 4)¡¨ Project discussing regarding the cumulative impact issues.

 

Engineer or Engineers Representative (ER)

2.2.6                 The ER 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 ER 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¡¦s, 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

¡P           Liaison with DSD, Engineer/Engineer¡¦s Representative, ET, IEC and the Contractor of the ¡§Construction of the DSD¡¦s Regulaiton of Shenzhen River Stage 4 (RSR 4)¡¨ Project discussing regarding the cumulative impact issues.

 

The Contractor(s)

2.2.7                 There will be one contractor for each individual works contract. Once the contractors are appointed, EPD, ET and IEC will be notified the details of the contractor.

2.2.8                 The Contractor for Contracts under CEDD should report to the ER. For ArchSD Contract, the Contractor should report to the Architect or Architect¡¦s Representative (AR). The duties and responsibilities of the Contractor are:

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

¡P           Employ an Environmental Team (ET) to undertake monitoring, laboratory analysis and reporting of EM &A Facilitate ET¡¦s monitoring and site inspection activities

¡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)

2.2.9                 Once the ET is appointed, the EPD, CEDD, ER, Architect and IEC will be notified the details of the ET.

 

2.2.10             The ET shall not be in any way an associated body of the Contractor(s), and shall be employed by the Project Proponent/Contractor 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. Suitably 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.  The ET shall report to the Project Proponent and the duties shall include:

¡P           Monitor and audit various environmental parameters as required in this EM&A Manual

¡P           Analyse 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 ER, the Architect, the lEC and Contractor 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           Liaison with the client departments, Engineer/Engineer¡¦s Representative, ET, lEC and the Contractor(s) of the concurrent projects as listed under Section 2.3 below regarding the cumulative impact issues.

 

Independent Environmental Checker (IEC)

2.2.11             One IEC will be employed for this Project. Once the IEC is appointed, EPD, ER, the Architect and ET will be notified the details of the IEC.

 

2.2.12             The Independent Environmental Checker (IEC) should not be in any way an associated body of the Contractor 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 10 years¡¦ experience in EM&A and have relevant professional qualifications. The appointment of IEC should be subject to the approval of EPD. The IEC should:

¡P           Provide proactive advice to the ER 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           Verify the log-book(s) mentioned in Condition 2.2 of the EP, notify the Director by fax, 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/or the EP, which might affect the monitoring or control of adverse environmental impacts from the Project

¡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 ER and Project Proponent on a monthly basis

¡P           Liaison with the client departments, Engineer/Engineer¡¦s Representative, the Architect, ET, lEC and the Contractor of the concurrent projects as listed under Section 2.3 below regarding the cumulative impact issues.

 

2.3              Concurrent Projects

2.3.1                 The concurrent construction works that may be carried out include, but not limited to, the following:

                                (a)            Regulation of Shenzhen River Stage IV;

                                (b)            Widening of Fanling Highway ¡V Tai Hang to Wo Hop Shek Interchange ¡V Contract No. HY/2012/06;

                                (c)            Construction of BCP facilities in Shenzhen.

 

2.4              Construction Progress

2.4.1                 In the Reporting Period, the major construction activity conducted under the Project is located in Contracts 2, 3, 6, 7 and SS C505 and they are summarized in below.  Moreover, 3-month rolling construction program for all the current contracts is enclosed in Appendix C. 

 

 

Contract 2 (CV/2012/08)

2.4.2                 The contract commenced in May 2014. In this Reporting Period, construction activities conducted are listed below:

Mid-Vent Portal

Ÿ    Adit waterproofing and lining

Ÿ    Stud tunnel post-excavation activities and earthworks

Ÿ    Structure connecting adit tunnel and ventilation building

Ÿ    Ventilation building superstructure

Ÿ    Ventilation building internal structure

North Portal

Ÿ    Southbound tunnel waterproofing and lining formwork

Ÿ    Southbound tunnel bench enlargement

Ÿ    Southbound tunnel internal structure, backfilling and cross passage

Ÿ    Tunnel Boring Machine (TBM) North drive excavation

Ÿ    Northbound tunnel top heading and bench excavation, water proofing and lining

Ÿ    North ventilation building structure

Ÿ    Construction of retaining wall

Ÿ    Mucking out from tunnels

South Portal

Ÿ    Southbound tunnel Drill & Blast Excavation

Ÿ    South ventilation building superstructure and internal structure

Ÿ    Tunnel invert, waterproofing, lining, internal structure and cross passage

Ÿ    Construction of retaining wall

Ÿ    Mucking out from tunnels

Admin Building

Ÿ   Construction of fence wall, drainage, internal structure, underground utilities and E&M installation

 

Contract 3 (CV/2012/09)

2.4.3                 The Contract commenced in November 2013.  In this Reporting Period, construction activities conducted are listed below:

Ÿ   Boundary Wall for DSD Pumping Station

Ÿ   Installation of Noise Barrier Steel Column & Panel

Ÿ   Remaining works on New Kiu Tau Footbridge

Ÿ   Mini-pile Installation

Ÿ   Noise barrier construction

Ÿ   Pipe Jacking Works for DN2200 Water Mains

Ÿ   Road works

Ÿ   Viaduct Segment Erection

Ÿ   Water Main Laying

Ÿ   Parapet installation

Ÿ   Planter Wall Construction

Ÿ   Construction of Profile Barrier on Viaduct deck

Ÿ   Drainage Work

Ÿ   Stressing of External Tendon

Ÿ   Construction of Abutment Wall

 

Contract 4 (NE/2014/02)

2.4.4                 The Contract was awarded in mid-April 2016 and the construction work was commenced on 2 May 2017. In this Reporting Period, construction activities conducted are listed below:

Ÿ   System design

Ÿ   E&M installation at Admin Building

 

Contract 5 (CV/2013/03)

2.4.5                 As advised by the ER, the construction works under Contract 5 was substantially completed on 31 August 2016.

 

Contract 6 (CV/2013/08)

2.4.6                 Contract 6 has awarded in June 2015 and construction work was commenced on 23 October 2015. In this Reporting Period, construction activities conducted are listed below:

Ÿ   Bored Piling

Ÿ   Bridge Pier Construction

Ÿ   Bridge Segment Erection

Ÿ   Tunnel Excavation

Ÿ   Sewage Treatment Plant Construction

Ÿ   Tunnel Ventilation Building Construction

 

Contract 7 (NE/2014/03)

2.4.7                 Contract 7 has awarded in December 2015 and construction work was commenced on 15 February 2016.  In this Reporting Period, construction activities conducted are listed below:

Ÿ   U-trough construction at Bridges A and E

Ÿ   Abutment construction at Bridge E

Ÿ   Column construction at Bridges A, B and D

Ÿ   Roof floor construction at Bridge C

 

Contract SS C505

2.4.8                 Contract SS C505 has awarded in July 2015 and construction work was commenced on 1 September 2015.  In this Reporting Period, construction activities conducted are listed below:

Ÿ   Building no. 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 18, 26, 30, 36 and 41 construction

Ÿ   Site Formation works for Building No. 14, 16, 25, 26 and 27

Ÿ   ABWF Works for Building no.36

Ÿ   Tower crane operation

Ÿ   Bridge construction works including construction of bridge column, retaining wall, pile cap, pier, abutment, road and finishes works

Ÿ   Underground drainage works, Road Works, CLP Cable laying and Landscaping

Ÿ   Formwork and falsework for PTB¡¦s slab construction and Bridge Decks

Ÿ   Construction PTB M/F, 1/F, 2/F and Roof flat slab

Ÿ   Steel beam works for maintenance platform for PTB

Ÿ   PTB backfilling works

Ÿ   Elevated Walkway E1, E2, E3 and E4 construction

Ÿ   Bridge deck construction for Bridges 1 ¡V 5

 

2.5              Summary of Environmental Submissions

2.5.1                 In according to the EP, the required documents have submitted to EPD which listed in below:

Ÿ   Project Layout Plans of Contracts 2, 3, 4, 5, 6, 7 and SS C505

Ÿ   Landscape Plan

Ÿ   Topsoil Management Plan

Ÿ   Environmental Monitoring and Audit Programme

Ÿ   Baseline Monitoring Report (TCS00690/13/600/R0030v3) for the Project

Ÿ   Waste Management Plan of the Contracts 2, 3, 4, 5, 6, 7 and SS C505

Ÿ   Contamination Assessment Plan (CAP) and Contamination Assessment Report (CAR) for Po Kat Tsai, Loi Tung and the workshops in Fanling

Ÿ   Vegetation Survey Report

Ÿ   Woodland Compensation Plan

Ÿ   Habitat Creation Management Plan

Ÿ   Wetland Compensation Plan

 

2.5.2                 Summary of the relevant permits, licenses, and/or notifications on environmental protection for the Project of each contracts are presented in Table 2-1.

 

Table 2-1        Status of Environmental Licenses and Permits of the Contracts

Item

Description

License/Permit Status

Ref. no.

Effective Date

Expiry Date

Contract 2

1

Air pollution Control (Construction Dust) Regulation

Ref No.: 368864

31 Dec 2013

Till Contract ends

2

Chemical Waste Producer Registration

North Portal

Waste Producers Number: No.5213-652-D2523-01

25 Mar 2014

Till Contract ends

Mid-Vent Portal

Waste Producers Number: No.5213-634-D2524-01

25 Mar 2014

Till Contract ends

South Portal

Waste Producers Number: No.5213-634-D2526-01

9 Apr 2014

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.WT00018374-2014

8 Oct 2014

30 Sep 2019

No.: W5/1I389

28 Mar 2014

31 Mar 2019

No. WT00023063-2015

18 Dec 2015

31 Mar 2019

No.: W5/1I392

28 Mar 2014

31 Mar 2019

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7019105

8 Jan 2014

Till Contract ends

5

Construction Noise Permit

GW-RN0228-17

01-Apr-2017

16-Sep-2017

GW-RN0288-17

26-Apr-2017

20-Oct-2017

GW-RN0291-17

26-Apr-2017

20-Oct-2017

GW-RN0318-17

09-May-2017

27-Oct-2017

GW-RN0371-17

07-Jun-2017

30-Sep-2017

GW-RN0373-17              

07-Jun-2017

30-Sep-2017

GW-RN0484-17

30-Jul-2017

20-Jan-2018

GW-RN0515-17

10-Aug-2017

01-Feb-2018

GW-RN0519-17

10-Aug-2017

01-Feb-2018

6

Specified Process License (Mortar Plant Operation)

L-3-251(1)

12 Apr 2016

11 Apr 2021

Contract 3

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 362101

17 Jul 2013

Till Contract ends

2

Chemical Waste Producer Registration

Waste Producers Number: No.:5113-634-C3817-01

 

7 Oct 2013

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.:WT00016832 ¡V 2013

28 Aug 13

31 Aug 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017914

2 Aug 13

Till Contract ends

5

Construction Noise Permit

GW-RN0021-17

19 Jan 2017

8 Jul 2017

GW-RN0029-17

19 Jan 2017

8 Jul 2017

GW-RN0040-17

25 Feb 2017

24 Aug 2017

GW-RN0066-17

3 Feb 2017

15 Jul 2017

GW-RN0069-17

15 Feb 2017

14 Aug 2017

GW-RN0070-17

3 Feb 2017

15 Jul 2017

GW-RN0071-17

16 Feb 2017

15 Aug 2017

GW-RN0084-17

8 Feb 2017

15 Jul 2017

GW-RN0096-17

19 Feb 2017

10 Jul 2017

GW-RN0111-17

26 Feb 2017

30 Jul 2017

GW-RN0115-17

2 Mar 2017

26 Aug 2017

GW-RN0161-17

1 Apr 2017

30 Sep 2017

GW-RN0168-17 (cancelled on 13 Jul 2017)

2 Apr 2017

25 Sep 2017

 

GW-RN0185-17

1 Apr 2017

30 Sep 2017

GW-RN0204-17

30 Mar 2017

29 Sep 2017

GW-RN0213-17

6 Apr 2017

9 Sep 2017

GW-RN0219-17

31 Mar 201

30 Sep 2017

GW-RN0235-17

11 Apr 2017

7 Oct 2017

GW-RN0236-17

10 Apr 2017

16 Sep 2017

GW-RN0302-17

30 Apr 2017

29 Oct 2017

GW-RN0303-17

11 May 2017

10 Nov 2017

GW-RN0305-17

30 Apr 2017

30 Jul 2017

GW-RN0342-17

28 May 2017

20 Nov 2017

GW-RN0376-17

22 Jun 2017

21 Dec 2017

GW-RN0378-17

22 Jun 2017

21 Dec 2017

GW-RN0384-17

12 Jun 2017

9 Sep 2017

GW-RN0417-17

27 Jun 2017

16 Dec 2017

GW-RN0458-17

16 Jul 2017

18 Dec 2017

GW-RN0477-17

28 Jul 2017

5 Jan 2018

Contract 5

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 359338

 

13 May 2013

Till the end of Contract

2

Chemical Waste Producer Registration

Waste Producers Number No.: 5213-642-S3735-01

8 Jun 2013

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: W5/1G44/1

8 Jun 13

30 Jun 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017351

29 Apr 13

Till the end of Contract

Contract 6

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390614

29 Jun 2015

Till the end of Contract

2

Chemical Waste Producer Registration

Waste Producers Number No.: 5213-652-C3969-01

31 Aug 2015

Till the end of Contract

3

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022707

9 Jul 2015

Till the end of Contract

4

Water Pollution Control Ordinance - Discharge License

No.:WT00024574-2016

31 May 2016

31 May 2021

No.:WT00024576-2016

31 May 2016

31 May 2021

No.:WT00024742-2016

14 June 2016

30 June 2021

No.:WT00024746-2016

14 June 2016

30 June 2021

5

Construction Noise Permit

GW-RN0126-17

3 Mar 2017

27 Aug 2017

GW-RN0361-17

1 Jun 2017

31 Aug 2017

GW-RN0421-17

20 Jun 2017

19 Dec 2017

GW-RN0427-17

3 Jul 2017

31 Aug 2017

GW-RW0478-17

30 Jul 2017

27 Aug 2018

Contract SS C505

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390974

13 Jul 2015

Till the end of Contract

2

Chemical Waste Producer Registration

Waste Producer No.: 5213-642-L1048-07

16 Sep 2015

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024865-2016

8 Jul 2016

30 Nov 2020

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022831

23 Jul 2015

Till the end of Contract

5

Construction Noise Permit

GW-RN0355-17

30 May 2017

25 Nov 2017

GW-RN0418-17

21 Jun 2017

15 Dec 2017

Contract 7

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 397015

21 Dec 2015

Till the end of Contract

2

Chemical Waste Producer Registration

Waste Producer No.: 5214-641-K3202-01

24 Mar 2016

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024422-2016

10 May 2016

31 May 2021

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024129

21 Jan 2016

Till the end of Contract

5

Construction Noise Permit

GW-RN0321-17

10 May 2017

4 Nov 2017

                                  Contract 4

1

Air pollution Control (Construction Dust) Regulation

Ref. No. 405353

22 July 2016

Till the end of Contract

2

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024973

13 May 2016

Till the end of Contract


3                    Summary of Impact Monitoring Requirements

3.1              General

3.1.1                 The Environmental Monitoring and Audit requirements are set out in the Approved EM&A manual. Environmental issues such as air quality, construction noise and water quality were identified as the key issues during the construction phase of the Project.

 

3.1.2                 A summary of construction phase EM&A requirements are presented in the sub-sections below.

 

3.2              Monitoring Parameters

3.2.1                 The EM&A program of construction phase monitoring shall cover the following environmental issues:

                     Air quality;

                     Construction noise; and

                     Water quality

 

3.2.2                 A summary of the monitoring parameters is presented in Table 3-1.

Table 3-1         Summary of EM&A Requirements

Environmental Issue

Parameters

Air Quality

Ÿ  1-hour TSP by Real-Time Portable Dust Meter; and

Ÿ  24-hour TSP by High Volume Air Sampler.

Noise

Ÿ  Leq(30min) in normal working days (Monday to Saturday) 07:00-19:00 except public holiday; and

Ÿ  3 sets of consecutive Leq(5min) on restricted hours i.e. 19:00 to 07:00 next day, and whole day of public holiday or Sunday

Ÿ  Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

Water Quality

In-situ Measurements

Ÿ  Dissolved Oxygen Concentration (mg/L);

Ÿ  Dissolved Oxygen Saturation (% );

Ÿ  Turbidity (NTU);

Ÿ  pH unit;

Ÿ  Water depth (m); and

Ÿ  Temperature (¢J).

Laboratory Analysis

Ÿ  Suspended Solids (mg/L)

 

3.3              Monitoring Locations

3.3.1                 The designated monitoring locations as recommended in the EM&A Manual are shown in Appendix D.  As the access to some of the designated monitoring locations was questionable due to safety reason or denied by the landlords, alternative locations therefore have had proposed. The proposed alternative monitoring locations has updated in the revised EM&A Programme which verified by IEC and certified by ET Leader prior submitted to EPD on 10 July 2013.  Table 3-2, Table 3-3 and Table 3-4 are respectively listed the air quality, construction noise and water quality monitoring locations for the Project and a map showing these monitoring stations is presented in Appendix E.

Table 3-2        Impact Monitoring Stations - Air Quality

Station ID

Description

Works Area

Related to the Work Contract

AM1b^

Open area at Tsung Yuen Ha Village

BCP

SS C505

Contract 7

AM2

Village House near Lin Ma Hang Road

LMH to Frontier Closed Area

Contract 6

AM3

Ta Kwu Ling Fire Service Station of Ta Kwu Ling Village.

LMH to Frontier Closed Area

Contract 6

AM4b^

House no. 10B1 Nga Yiu Ha Village

LMH to Frontier Closed Area

Contract 6

AM5a^

Ping Yeung Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM6

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM7b@

Loi Tung Village House

Sha Tau Kok Road

Contract 2

Contract 6

AM8

Po Kat Tsai Village No. 4

Po Kat Tsai

Contract 2

AM9b#

Nam Wa Po Village House No. 80

Fanling

Contract 3

# Proposal for the change of air quality monitoring location from AM9a to AM9b was submitted to EPD on 4 Nov 2013 after verified by the IEC and it was approved by EPD (EPD¡¦s ref.: (15) in EP 2/N7/A/52 Pt.10 dated 8 Nov 2013).

* Proposal for the change of air quality monitoring location from AM1to AM1a was submitted to EPD on 24 March 2014 after verified by the IEC. It was approved by EPD (EPD¡¦s ref.: (6) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).

@ Proposal for the change of air quality monitoring location from AM7a to AM7b was submitted to EPD on 4 June 2014 after verified by the IEC. It was approved by EPD (EPD¡¦s ref.: (7) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).

^ Proposal for change of air quality monitoring locations was enclosed in the updated EM&A Programme which approval by EPD on 29 Mar 2016.

 

Table 3-3        Impact Monitoring Stations - Construction Noise

Station ID

Description

Works Area

Related to the Work Contract

NM1

Tsung Yuen Ha Village House No. 63

BCP

SS C505

Contract 7

NM2a#

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 6

NM3

Ping Yeung Village House (facade facing northeast)

Ping Yeung to Wo Keng Shan

Contract 6

NM4

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

NM5

Village House, Loi Tung

Sha Tau Kok Road

Contract 2,

Contract 6

NM6

Tai Tong Wu Village House 2

Sha Tau Kok Road

Contract 2,

Contract 6

NM7

Po Kat Tsai Village

Po Kat Tsai

Contract 2

NM8

Village House, Tong Hang

Fanling

Contract 2

Contract 3

NM9

Village House, Kiu Tau Village

Fanling

Contract 3

NM10

Nam Wa Po Village House No. 80

Fanling

Contract 3

# Proposal for the change of construction noise monitoring location from NM2 to NM2a was verified by the IEC on 6 May 2016 and was effective on 9 May 2016.

 


 

Table 3-4        Impact Monitoring Stations - Water Quality

Station ID

Description

Coordinates of Designated / Alternative Location

Nature of the location

Related to the Work Contract

Easting

Northing

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

SS C505

Contract 6

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

SS C505

Contract 6

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at upstream 81m of the designated location

Contract 6

WM2A(a)*

Downstream of River Ganges

834 191

844 474

Alternative location located at upstream 70m of the designated location

Contract 6

WM2A- Controlx#

Upstream of River Ganges

835 377

844 188

Alternative location located at upstream 160m of the designated location

Contract 6

WM2B

Downstream of River Ganges

835 433

843 397

NA

Contract 6

WM2B- Control

Upstream of River Ganges

835 835

843 351

Alternative location located at downstream 31m of the designated location

Contract 6

WM3x#

Downstream of River Indus

836 206

842 270

Alternative location located at downstream 180m of the designated location

Contract 2

Contract 6

WM3- Control

Upstream of River Indus

836 763

842 400

Alternative location located at downstream 26m of the designated location

Contract 2

Contract 6

WM4

Downstream of Ma Wat Channel

833 850

838 338

Alternative location located at upstream 11m of the designated location

Contract 2

Contract 3

WM4¡V Control A

Kau Lung Hang Stream

834 028

837 695

Alternative location located at downstream 28m of the designated location

Contract 2

Contract 3

WM4¡V Control B

Upstream of Ma Wat Channel

833760

837395

Alternative location located at upstream 15m of the designated location

Contract 2

Contract 3

Note: EPD has approved the revised EM&A Programme (Rev.7) which proposed that (1) if the measured water depth of the monitoring station is lower than 150 mm, alternative location based on the criteria were selected to perform water monitoring; and (2) If no suitable alternative location could be found within 15m far from the original location, the sampling at that location will be cancelled since sampling at too far from the designated location could not make a representative sample in accordance with the updated EM&A Programme (Rev. 07) (Section 4.1.4) (EPD ref.: ( ) in EP2/N7/A/52 Ax(1) Pt.20 dated 7 April 2017)

(*)        Proposal for the change of water monitoring location from WM2A to WM2A(a) was verified by the IEC and it was approved by EPD. (EPD¡¦s ref. (10) in EP 2/N7/A/52 Pt.19)

(#)  Proposal for the change of water quality monitoring location (WM3x and WM2A-Cx was included in the EM&A Programme Rev .05 which approved by EPD on 29 March 2016 (EPD ref.: (3) in EP2/N7/A/52 Ax(1) Pt.19)

 

3.4              Monitoring Frequency and Period

The requirements of impact monitoring are stipulated in Sections 2.1.6, 3.1.5 and 4.1.6 of the approved EM&A Manual and presented as follows.

 

Air Quality Monitoring

3.4.1                 Frequency of impact air quality monitoring is as follows:

Ÿ   1-hour TSP

3 times every six days during course of works

Ÿ   24-hour TSP

Once every 6 days during course of works.

 

Noise Monitoring

3.4.2                 One set of Leq(30min) as 6 consecutive Leq(5min) between 0700-1900 hours on normal weekdays and once every week during course of works.  If construction work necessary to carry out at other time periods, i.e. restricted time period (19:00 to 07:00 the next morning and whole day on public holidays) (hereinafter referred as ¡§the restricted hours¡¨), additional weekly impact monitoring for Leq(5min) measurement shall be employed during respective restricted hours periods..  Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

 

Water Quality Monitoring

3.4.3                 The water quality monitoring frequency shall be 3 days per week during course of works.  The interval between two sets of monitoring shall not be less than 36 hours.

 

3.5              Monitoring Equipment

Air Quality Monitoring

3.5.1                 The 24-hour and 1-hour TSP levels shall be measured by following the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.  If the ET proposes to use a direct reading dust meter to measure 1-hour TSP levels, it shall submit sufficient information to the IEC to approve.

 

3.5.2                 The filter paper of 24-hour TSP measurement shall be determined by HOKLAS accredited laboratory.

 

3.5.3                 All equipment to be used for air quality monitoring is listed in Table 3-5.

Table 3-5         Air Quality Monitoring Equipment

Equipment

Model

24-Hr TSP

High Volume Air Sampler

TISCH High Volume Air Sampler, HVS Model TE-5170*

Calibration Kit

TISCH Model TE-5025A*

1-Hour TSP

Portable Dust Meter

Sibata LD-3B Laser Dust monitor Particle Mass Profiler & Counter*

* Instrument was used in the Reporting Period and the calibration certificate could be referred in Appendix F.

 

Wind Data Monitoring Equipment

3.5.4                 According to the approved EM&A Manual, wind data monitoring equipment shall also be provided and set up for logging wind speed and wind direction near the dust monitoring locations.  The equipment installation location shall be proposed by the ET and agreed with the IEC.  For installation and operation of wind data monitoring equipment, the following points shall be observed:

1)          The wind sensors should be installed 10 m above ground so that they are clear of obstructions or turbulence caused by buildings.

2)          The wind data should be captured by a data logger. The data shall be downloaded for analysis at least once a month.

3)          The wind data monitoring equipment should be re-calibrated at least once every six months.

4)          Wind direction should be divided into 16 sectors of 22.5 degrees each.

 

3.5.5                 ET has liaised with the landlords of the successful granted HVS installation premises.  However, the owners rejected to provide premises for wind data monitoring equipment installation.

 

3.5.6                 Under this situation, the ET proposed alternative methods to obtain representative wind data.  Meteorological information as extracted from ¡§the Hong Kong Observatory Ta Kwu Ling Station¡¨ is alternative method to obtain representative wind data.  For Ta Kwu Ling Station, it is located nearby the Project site.  Moreover, this station is located at 15m above mean sea level while its anemometer is located at 13m above the existing ground which in compliance with the general setting up requirement.  Furthermore, this station also can be to provide the humidity, rainfall, and air pressure and temperature etc. meteorological information.  In Hong Kong of a lot development projects, weather information extracted from Hong Kong Observatory is common alternative method if weather station installation not allowed.

 

Noise Monitoring

3.5.7                 Sound level meter 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.  The sound level meter shall be checked using an acoustic calibrator.  The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m/s.

 

3.5.8                 Noise monitoring equipment to be used for monitoring is listed in Table 3-6.

Table 3-6         Construction Noise Monitoring Equipment

Equipment

Model

Integrating Sound Level Meter

B&K Type 2238* or Rion NL-31* or Rion NL-52*

Calibrator

B&K Type 4231* or Quest QC-20* or Rion NC-74*

Portable Wind Speed Indicator

Testo Anemometer

* Instrument was used in the Reporting Period and the calibration certificate could be referred in Appendix F.

 

3.5.9                 Sound level meters listed above comply with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications, as recommended in TM issued under the NCO.  The acoustic calibrator and sound level meter to be used in the impact monitoring will be calibrated yearly.

 

Water Quality Monitoring

3.5.10             DO and water temperature should be measured in-situ by a DO/temperature meter. The instrument should be portable and weatherproof using a DC power source. It should have a membrane electrode with automatic temperature compensation complete with a cable. The equipment should be capable of measuring:

                 a DO level in the range of 0-20 mg/l and 0-200% saturation; and

                 a temperature of between 0 and 45 degree Celsius.

 

3.5.11             A portable pH meter capable of measuring a range between 0.0 and 14.0 should be provided to measure pH under the specified conditions accordingly to the APHA Standard Methods.

 

3.5.12             The instrument should be portable and weatherproof using a DC power source. It should have a photoelectric sensor capable of measuring turbidity between 0-1000 NTU.

 

3.5.13             A portable, battery-operated echo sounder or tape measure will be used for the determination of water depth at each designated monitoring station as appropriate.

 

3.5.14             A water sampler e.g. Kahlsico Water Sampler, which is a transparent PVC cylinder with capacity not less than 2 litres, will be used for water sampling if water depth over than 0.5m.   For sampling from very shallow water depths e.g. <0.5 m, water sample collection will be directly from water surface below 100mm use sampling plastic bottle to avoid inclusion of bottom sediment or humus.  Moreover, Teflon/stainless steel bailer or self-made sampling buckets maybe used for water sampling.  The equipment used for sampling will be depended the sampling location and depth situations.

 

3.5.15             Water samples for laboratory measurement of SS will be collected in high density polythene bottles, packed in ice (cooled to 4 ºC without being frozen), and delivered to the laboratory in the same day as the samples were collected.

 

3.5.16             Analysis of suspended solids should be carried out in a HOKLAS or other accredited laboratory. Water samples of about 1L should be collected at the monitoring stations for carrying out the laboratory suspended solids determination.  The SS determination work should start within 24 hours after collection of the water samples. The SS analyses should follow the APHA Standard Methods 2540D with Limit of Reporting of 2 mg/L.

 

3.5.17             Water quality monitoring equipment used in the impact monitoring is listed in Table 3-7.  Suspended solids (SS) analysis is carried out by a local HOKLAS-accredited laboratory, namely ALS Technichem (HK) Pty Ltd.

Table 3-7         Water Quality Monitoring Equipment

Equipment

Model

Water Depth Detector

Eagle Sonar or tape measures

Water Sampler

A 2-litre transparent PVC cylinder with latex cups at both ends or teflon/stainless steel bailer or self-made sampling bucket

Thermometer & DO meter

YSI Professional Plus /YSI PRO20 Handheld Dissolved Oxygen Instrument/ YSI 550A Multifunctional Meter*/ YSI Professional DSS

pH meter

YSI Professional Plus / AZ8685 pH pen-style meter*/ YSI 6820/ 650MDS/ YSI Professional DSS

Turbidimeter

Hach 2100Q*/ YSI 6820/ 650MDS/ YSI Professional DSS

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

¡¥Willow¡¦ 33-liter plastic cool box with Ice pad

* Instrument was used in the Reporting Period and the calibration certificate could be referred in Appendix F.

 

3.6              Monitoring Methodology

1-hour TSP Monitoring

3.6.1                 The 1-hour TSP monitor was a brand named ¡§Sibata LD-3B Laser Dust monitor Particle Mass Profiler & Counter¡¨ which is a portable, battery-operated laser photometer.  The 1-hour TSP meter provides a real time 1-hour TSP measurement based on 90o light scattering.  The 1-hour TSP monitor consists of the following:

(a.)         A pump to draw sample aerosol through the optic chamber where TSP is measured;

(b.)        A sheath air system to isolate the aerosol in the chamber to keep the optics clean for maximum reliability; and

(c.)         A built-in data logger compatible with Windows based program to facilitate data collection, analysis and reporting.

 

3.6.2                 The 1-hour TSP meter is used within the valid period as follow manufacturer¡¦s Operation and Service Manual.

 

24-hour TSP Monitoring

3.6.3                 The equipment used for 24-hour TSP measurement is Tisch Environmental, Inc. Model TE-5170 TSP high volume air sampling system, which complied with EPA Code of Federal Regulation, Appendix B to Part 50. The High Volume Air Sampler (HVS) consists of the following:

(a.)         An anodized aluminum shelter;

(b.)        A 8¡¨x10¡¨ stainless steel filter holder;

(c.)         A blower motor assembly;    

(d.)        A continuous flow/pressure recorder;

(e.)         A motor speed-voltage control/elapsed time indicator;

(f.)         A 7-day mechanical timer, and

(g.)         A power supply of 220v/50 Hz

 

3.6.4                 The HVS is operated and calibrated on a regular basis in accordance with the manufacturer¡¦s instruction using Tisch Calibration Kit Model TE-5025A.  Calibration would carry out in two month interval.

 

3.6.5                 24-hour TSP is collected by the ET on filters of HVS and quantified by a local HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd (ALS), upon receipt of the samples.  The ET keep all the sampled 24-hour TSP filters in normal air conditioned room conditions, i.e. 70% RH (Relative Humidity) and 25oC, for six months prior to disposal.

 

Noise Monitoring

3.6.6                 Noise measurements were taken in terms of the A-weighted equivalent sound pressure level (Leq) measured in decibels dB(A). Supplementary statistical results (L10 and L90) were also obtained for reference.

 

3.6.7                 During the monitoring, all noise measurements would be performed with the meter set to FAST response and on the A-weighted equivalent continuous sound pressure level (Leq).  Leq(30min) in six consecutive Leq(5min) measurements will use as the monitoring parameter for the time period between 0700-1900 hours on weekdays; Leq(5min) measurements would be used as monitoring parameter for other time periods (e.g. during restricted hours), if necessary.

 

3.6.8                 Prior of noise measurement, the accuracy of the sound level meter is checked using an acoustic calibrator generating a known sound pressure level at a known frequency.  The checking is performed before and after the noise measurement.

 

Water Quality

3.6.9                 Water quality monitoring is conducted at the designated or alternative locations. The sampling procedures with the in-situ monitoring are presented as below:

 

Sampling Procedure

3.6.10             A Digital Global Positioning System (GPS) is used to identify the designated monitoring stations prior to water sampling.  A portable, battery-operated echo sounder or tape measurement is used for the determination of water depth at each station.  At each station, water sample would be collected from 0.1m below water surface or the water surface to prevent the river bed sediment for stirring.

 

3.6.11             The sample container will be rinsed with a portion of the water sample.  The water sample then will be transferred to the high-density polythene bottles as provided by the laboratory, labeled with a unique sample number and sealed with a screw cap.

 

3.6.12             Before sampling, general information such as the date and time of sampling, weather condition as well as the personnel responsible for the monitoring would be recorded on the field data sheet.

 

3.6.13             A ¡¥Willow¡¦ 33-liter plastic cool box packed with ice will be used to preserve the water samples prior to arrival at the laboratory for chemical determination.  The water temperature of the cool box is maintained at a temperature as close to 40C as possible without being frozen.  Samples collected are delivered to the laboratory upon collection.

 

In-situ Measurement

3.6.14             YSI 550A Multifunctional Meter is used for water in-situ measures, which automates the measurements and data logging of temperature, dissolved oxygen and dissolved oxygen saturation. 

 

3.6.15             A portable AZ Model 8685 is used for in-situ pH measurement.  The pH meter is capable of measuring pH in the range of 0 ¡V 14 and readable to 0.1.

 

3.6.16             A portable Hach 2100Q Turbidimeter is used for in-situ turbidity measurement. The turbidity meter is capable of measuring turbidity in the range of 0 ¡V 1000 NTU. 

 

3.6.17             All in-situ measurement equipment are calibrated by HOKLAS accredited laboratory of three month interval.

 

Laboratory Analysis

3.6.18             All water samples analyzed Suspended Solids (SS) will be carried out by a local HOKLAS-accredited testing laboratory (ALS Technichem (HK) Pty Ltd HOKLAS registration no. 66).  SS determination using APHA Standard Methods 2540D as specified in the EM&A Manual will start within 48 hours of water sample receipt.

 

3.7              Equipment Calibration

3.7.1                 Calibration of the HVS is performed upon installation and thereafter at bimonthly intervals in accordance with the manufacturer¡¦s instruction using the certified standard calibrator (TISCH Model TE-5025A).  Moreover, the Calibration Kit would be calibrated annually. The calibration data are properly documented and the records are maintained by ET for future reference.

 

3.7.2                 The 1-hour TSP meter was calibrated by the supplier prior to purchase.  Zero response of the equipment would be checked before and after each monitoring event.  Annually calibration with the High Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.

 

3.7.3                 The sound level meter and calibrator are calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme at yearly basis.

 

3.7.4                 All water quality monitoring equipment would be calibrated by HOKLAS accredited laboratory of three month intervals.

 

3.7.5                 The calibration certificates of all monitoring equipment used for the impact monitoring program in the Reporting Period and the HOKLAS accredited certificate of laboratory are attached in Appendix F.  

 

3.8              Derivation of Action/Limit (A/L) Levels

3.8.1                 The baseline results form the basis for determining the environmental acceptance criteria for the impact monitoring.  According to the approved Environmental Monitoring and Audit Manual, the air quality, construction noise and water quality criteria were set up, namely Action and Limit levels are listed in Tables 3-8, 3-9 and 3-10.

Table 3-8        Action and Limit Levels for Air Quality Monitoring

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

AM1b

265

143

500

260

AM2

268

149

AM3

269

145

AM4b

267

148

AM5a

268

143

AM6

269

148

AM7b

275

156

AM8

269

144

AM9b

271

151

 

 

Table 3-9         Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

NM1, NM2a, NM3, NM4, NM5, NM6, NM7, NM8, NM9, NM10

When one or more documented complaints are received

75 dB(A)Note 1 & Note 2

Note 1:  Acceptable Noise Levels for school should be reduced to 70 dB(A) and65 dB(A) during examination period.

Note 2:  If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the NCA have to be followed.

 

Table 3-10       Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

WM1

WM2A(a)

WM2B

WM3x

WM4

DO (mg/L)

Action Level

(*)4.23

(**)4.00

(*)4.74

(**)4.00

(*)4.14

Limit Level

(#)4.19

(**)4.00

(#)4.60

(**)4.00

(#)4.08

Turbidity (NTU)

Action Level

51.3

24.9

11.4

13.4

35.2

AND  120% of upstream control station of the same day

Limit Level

67.6

33.8

12.3

14.0

38.4

AND  130% of upstream control station of the same day

SS (mg/L)

Action Level

54.5

14.6

11.8

12.6

39.4

AND  120% of upstream control station of the same day

Limit Level

64.9

17.3

12.4

12.9

45.5

AND  130% of upstream control station of the same day

Remarks:

(*)      The Proposed Action Level of Dissolved Oxygen is adopted to be used 5%-ile of baseline data

(**)  The Proposed Action & Limit Level of Dissolved Oxygen is used 4mg/L

(#)     The Proposed Limit Level of Dissolved Oxygen is adopted to be used 1%-ile of baseline data

 

3.8.2                 Should non-compliance of the environmental quality criteria occurs, remedial actions will be triggered according to the Event and Action Plan which presented in Appendix G.

 

3.9              Data Management and Data QA/QC Control

3.9.1                 All monitoring data will be handled by the ET¡¦s in-house data recording and management system.  The monitoring data recorded in the equipment will be downloaded directly from the equipment at the end of each monitoring day.  The downloaded monitoring data will input into a computerized database maintained by the ET.  The laboratory results will be input directly into the computerized database and checked by personnel other than those who input the data.

 

3.9.2                 For monitoring parameters that require laboratory analysis, the local laboratory shall follow the QA/QC requirements as set out under the HOKLAS scheme for the relevant laboratory tests.


4                    Air Quality Monitoring

4.1              General

4.1.1                 In the Reporting Period, construction works under the project have been commenced in Contracts 2, 3, 4, 6, 7 and Contract SS C505. Hence, air quality monitoring was performed at all designated locations.

 

4.1.2                 The air quality monitoring schedule is presented in Appendix H and the monitoring results are summarized in the following sub-sections.

 

4.2              Air Quality Monitoring Results

4.2.1                 In the Reporting Period, a total of 135 events of 1-hour TSP and 45 events 24-hours TSP monitoring were carried out and the monitoring results are summarized in Tables 4-1 to 4-9.   The detailed 24-hour TSP monitoring data are presented in Appendix I and the relevant graphical plots are shown in Appendix J.

Table 4-1         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM1b

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Jul-17

26

6-Jul-17

9:27

39

34

35

11-Jul-17

41

12-Jul-17

9:28

40

40

42

17-Jul-17

19

18-Jul-17

9:40

37

34

36

22-Jul-17

45

24-Jul-17

9:32

57

56

59

28-Jul-17

86

29-Jul-17

13:00

67

64

68

Average

(Range)

43

(19 ¡V 86)

Average

(Range)

47

(34 ¡V 68)

 

Table 4-2         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM2

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Jul-17

63

6-Jul-17

9:24

34

40

36

11-Jul-17

133

12-Jul-17

9:31

53

43

38

17-Jul-17

48

18-Jul-17

9:36

45

34

31

22-Jul-17

133

24-Jul-17

9:29

48

49

56

28-Jul-17

142

29-Jul-17

13:04

63

60

64

Average

(Range)

104

(48 ¡V 142)

Average

(Range)

46

(31 ¡V 64)

 

Table 4-3         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM3

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Jul-17

42

6-Jul-17

9:22

37

47

39

11-Jul-17

51

12-Jul-17

9:24

36

30

29

17-Jul-17

41

18-Jul-17

9:34

33

33

38

22-Jul-17

44

24-Jul-17

9:35

66

59

60

28-Jul-17

82

29-Jul-17

13:05

63

59

62

Average

(Range)

52

(41 ¡V 82)

Average

(Range)

46

 (29 ¡V 66)

 

Table 4-4         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM4b

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Jul-17

26

3-Jul-17

9:46

27

26

31

12-Jul-17

33

8-Jul-17

8:47

50

47

51

18-Jul-17

52

14-Jul-17

10:06

43

45

47

22-Jul-17

21

20-Jul-17

9:27

33

43

46

29-Jul-17

91

26-Jul-17

9:23

37

36

33

Average

(Range)

45

(21 ¡V 91)

Average

(Range)

40

(26 ¡V 51)

 

Table 4-5         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM5a

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Jul-17

19

3-Jul-17

10:01

22

21

32

12-Jul-17

37

8-Jul-17

8:49

45

42

46

18-Jul-17

16

14-Jul-17

10:08

44

45

36

22-Jul-17

17

20-Jul-17

9:29

40

36

36

29-Jul-17

188

26-Jul-17

9:25

40

38

39

Average

(Range)

55

 (16 ¡V 188)

Average

(Range)

37

(21 ¡V 46)

Remarks:

bold and italic indicated Action Level exceedance

 

Table 4-6         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM6

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Jul-17

41

3-Jul-17

9:26

30

28

25

12-Jul-17

56

8-Jul-17

9:01

47

45

51

18-Jul-17

22

14-Jul-17

10:14

35

47

34

22-Jul-17

29

20-Jul-17

9:35

34

38

40

29-Jul-17

101

26-Jul-17

9:36

34

33

38

Average

(Range)

50

 (22 ¡V 101)

Average

(Range)

37

(25 ¡V 51)

 

Table 4-7         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM7b

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Jul-17

70

3-Jul-17

9:48

40

41

41

12-Jul-17

107

8-Jul-17

9:42

43

46

46

18-Jul-17

30

14-Jul-17

9:20

50

54

62

22-Jul-17

39

20-Jul-17

9:43

64

71

60

29-Jul-17

137

26-Jul-17

9:21

64

74

75

Average

(Range)

77

 (30 ¡V 137)

Average

(Range)

55

(40 ¡V 75)

 

Table 4-8         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM8

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Jul-17

32

3-Jul-17

13:55

38

38

37

12-Jul-17

26

8-Jul-17

13:38

40

44

51

18-Jul-17

16

14-Jul-17

13:09

70

69

59

22-Jul-17

15

20-Jul-17

13:09

62

68

66

29-Jul-17

90

26-Jul-17

13:11

72

77

73

Average

(Range)

36

 (15 ¡V 90)

Average

(Range)

58

(37 ¡V 77)

 

Table 4-9         Summary of 24-hour and 1-hour TSP Monitoring Results ¡V AM9b

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Jul-17

26

6-Jul-17

9:04

42

43

30

11-Jul-17

28

12-Jul-17

9:26

64

71

72

17-Jul-17

20

18-Jul-17

9:12

41

42

42

22-Jul-17

25

24-Jul-17

9:00

59

54

58

28-Jul-17

41

29-Jul-17

9:16

63

68

65

Average

(Range)

28

(20 ¡V 41)

Average

(Range)

54

(30 ¡V 72)

 

4.2.1                 As shown in Tables 4-1 to 4-9, all the 1-hour TSP monitoring results were below the Action/Limit Levels.  For 24-hour TSP monitoring, an Action Level exceedance was recorded at AM5a on 29 July 2017.  Notification of Exceedance (NOE) was issued to relevant parties on 4 August 2017 and the investigation for the cause of exceedance is underway.

 

4.2.2                 The meteorological data during the impact monitoring days are summarized in Appendix K.


 

5                    Construction Noise Monitoring

5.1              General

5.1.1                 In the Reporting Period, construction works under the project have been commenced in Contracts 2, 3, 4, 6, 7 and Contract SS C505 and noise monitoring was performed at all designated locations.

 

5.1.2                 The noise monitoring schedule is presented in Appendix H and the monitoring results are summarized in the following sub-sections.

 

5.2              Noise Monitoring Results (normal daytime)

5.2.1                 In the Reporting Period, a total of 40 events noise measurements were carried out at the designated locations.  The sound level meter was set in 1m from the exterior of the building façade including noise monitoring locations NM1, NM3, NM4, NM5, NM6, NM7, NM8 and NM9.  Therefore, no façade correction (+3 dB(A)) is added according to acoustical principles and EPD guidelines.  However, free-field status were performed at NM2a and NM10 and façade correction (+3 dB(A)) has added according to the requirement in this month.  The noise monitoring results at the designated locations are summarized in Tables 5-1 and 5-2.  The detailed noise monitoring data are presented in Appendix I and the relevant graphical plots are shown in Appendix J.

Table 5-1         Summary of Construction Noise Monitoring Results

Construction Noise Level (Leq30min), dB(A)

Date

NM1

NM2a(*)

NM8

NM9

NM10(*)

6-Jul-17

59

68

59

61

65

12-Jul-17

57

72

60

62

66

18-Jul-17

58

69

59

61

65

24-Jul-17

61

65

64

64

67

Limit Level

75 dB(A)

Remarks

(*)    façade correction (+3 dB(A) is added according to acoustical principles and EPD guidelines

Table 5-2         Summary of Construction Noise Monitoring Results

Construction Noise Level (Leq30min), dB(A)

 

Date

NM3

NM4

NM5

NM6

NM7

 

3-Jul-17

55

65

53

58

58

 

14-Jul-17

63

62

57

62

66

 

20-Jul-17

64

61

58

59

67

 

26-Jul-17

59

65

58

63

62

 

Limit Level

75 dB(A)

 

 

54

 

5.2.2                 As shown in Tables 5-1 and 5-2, the noise level measured at all designated monitoring locations were below 75dB(A).  Moreover, no valid noise complaint (which triggered Action Level exceedance) was recorded in the Reporting Period.


 

6                    Water Quality Monitoring

6.1              General

6.1.1                 In the Reporting Period, construction works under the project has been commenced in Contracts 2, 3, 4, 6, 7 and Contract SS C505 and water quality monitoring was performed at all designated locations.  The water quality monitoring schedule is presented in Appendix H.  The monitoring results are summarized in the following sub-sections.

 

6.2              Results of Water Quality Monitoring

6.2.1                 In the Reporting Period, a total of thirteen (13) sampling days was scheduled to carry out for all designated locations with their control stations.  Since exceedances were recorded at WM2A(a), WM3x and WM4, according to ¡§Event and Action Plan¡¨ stipulation, 6, 1 and 3 additional water quality monitoring day was conducted for WM2A(a), WM3x and WM4 respectively and theirs control stations in the reporting period.

 

6.2.2                 The key monitoring parameters including Dissolved Oxygen, Turbidity and Suspended Solids are summarized in Tables 6-1 to 6-5.  Breaches of water quality monitoring criteria are shown in Table 6-6.  Detailed monitoring database including in-situ measurements and laboratory analysis data are shown in Appendix I and the relevant graphical plot are shown in Appendix J.

Table 6-1         Water Quality Monitoring Results Associated of Contracts 2 and 3

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM4

WM4-CA

WM4-CB

WM4

WM4-CA

WM4-CB

WM4

WM4-CA

WM4-CB

4-Jul-17

7.2

8.2

7.2

30.9

13.0

23.1

22.0

12.5

32.5

6-Jul-17

7.5

8.0

6.3

65.6

14.1

40.5

50.0

12.0

30.5

7-Jul-17

#

#

#

61.1

8.1

29.8

63.0

8.0

26.0

8-Jul-17#

6.9

7.1

6.3

80.7

12.2

17.6

64.5

8.0

13.0

10-Jul-17

7.5

7.8

6.8

34.5

7.1

14.2

34.0

5.0

11.0

11-Jul-17#

#

#

#

12.5

5.2

7.7

13.0

6.0

12.0

12-Jul-17

7.5

8.2

7.2

25.4

4.7

18.0

19.5

4.0

19.0

14-Jul-17

6.9

7.7

6.4

70.4

21.9

72.6

91.5

10.0

83.5

18-Jul-17

8.3

8.6

7.9

70.0

49.8

51.4

61.0

48.5

36.5

19-Jul-17#

#

#

#

35.1

13.0

16.8

31.0

12.0

8.0

20-Jul-17

6.9

7.1

6.4

19.6

7.6

11.6

15.5

6.0

8.0

22-Jul-17

6.8

8.0

5.7

19.7

6.4

8.3

19.5

5.5

8.5

24-Jul-17

7.1

7.6

6.8

70.0

22.8

65.0

69.0

22.5

64.0

26-Jul-17

7.4

7.6

6.9

20.5

16.7

9.8

20.5

14.5

9.0

28-Jul-17

7.3

7.7

6.8

21.2

8.2

12.4

21.5

5.0

12.5

31-Jul-17

7.1

7.7

6.6

31.3

7.2

14.6

24.5

2.0

13.0

Remarks:

bold with underline indicated Limit Level exceedance

# Additional water quality monitoring at the exceeded location(s) due to two consecutive monitoring days indicated Limit Level exceedance.

 

Table 6-2         Water Quality Monitoring Results Associated of Contracts 6 and SS C505

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM1

WM1-C

WM1

WM1-C

WM1

WM1-C

4-Jul-17

7.3

7.4

49.0

30.0

47.0

37.5

6-Jul-17

7.7

7.0

49.2

22.2

53.5

24.5

8-Jul-17

7.9

8.0

34.2

17.4

24.5

8.0

10-Jul-17

6.7

6.6

32.0

11.0

33.5

7.0

12-Jul-17

7.7

6.2

19.7

11.8

20.5

6.5

14-Jul-17

7.8

7.1

25.6

18.9

24.0

6.5

18-Jul-17

8.3

8.4

743.5

825.5

527.5

746.5

20-Jul-17

6.6

7.0

14.2

12.8

11.0

13.0

22-Jul-17

7.9

8.6

9.4

7.5

10.0

5.0

24-Jul-17

7.3

7.8

533.0

over range

278.5

676.5

26-Jul-17

7.7

8.0

16.6

10.0

14.0

6.5

28-Jul-17

7.5

7.8

17.0

12.5

12.5

8.0

31-Jul-17

7.5

8.1

17.3

11.8

14.0

4.0

 

Table 6-3         Water Quality Monitoring Results Associated only Contract 6

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM2A(a)

WM2A- Cx

WM2B

WM2B- C

WM2A(a)

WM2A- Cx

WM2B

WM2B- C

WM2A(a)

WM2A- Cx

WM2B

WM2B- C

4-Jul-17

7.6

7.7

*

*

81.4

11.5

*

*

96.0

<2

*

*

5-Jul-17#

#

#

*

*

40.5

4.3

*

*

40.5

4.5

*

*

6-Jul-17

7.5

7.9

*

*

527.5

33.5

*

*

327.5

23.0

*

*

7-Jul-17#

#

#

*

*

53.9

7.5

*

*

40.0

3.0

*

*

8-Jul-17

7.5

7.8

*

*

24.3

12.4

*

*

18.5

7.0

*

*

10-Jul-17

7.3

8.6

*

*

23.8

6.4

*

*

28.0

7.0

*

*

12-Jul-17

6.5

7.8

*

*

23.0

7.7

*

*

14.5

2.5

*

*

14-Jul-17

7.7

7.7

*

*

23.5

7.5

*

*

14.0

2.0

*

*

18-Jul-17

8.5

8.8

*

*

overrange

205.0

*

*

1490.0

211.0

*

*

19-Jul-17#

#

#

*

*

157.0

8.6

*

*

124.0

4.0

*

*

20-Jul-17

7.1

6.7

*

*

70.7

11.3

*

*

58.5

7.5

*

*

21-Jul-17#

#

#

*

*

10.8

4.5

*

*

9.0

5.0

*

*

22-Jul-17

7.7

8.3

*

*

12.3

4.7

*

*

12.5

<2

*

*

24-Jul-17

7.2

7.8

*

*

123.5

10.6

*

*

63.5

6.0

*

*

25-Jul-17#

#

#

*

*

46.4

7.6

*

*

65.0

9.0

*

*

26-Jul-17

7.4

8.0

*

*

8.3

6.1

*

*

3.5

<2

*

*

27-Jul-17#

#

#

*

*

8.0

4.2

*

*

5.0

<2

*

*

28-Jul-17

7.2

7.7

*

*

10.3

7.2

*

*

7.0

8.5

*

*

31-Jul-17

6.9

7.5

*

*

8.8

5.4

*

*

5.5

<2

*

*

 

Remarks:

bold with underline indicated Limit Level exceedance

 

# Additional water quality monitoring at the exceeded location(s) due to two consecutive monitoring days indicated Limit Level exceedance.

* water sampling was unable to carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm)

 

 

Table 6-4         Water Quality Monitoring Results Associated Contracts 2 and 6

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM3x

WM3-C

WM3x

WM3-C

WM3x

WM3-C

4-Jul-17

7.3

6.9

134.2

124.6

417.0

391.0

6-Jul-17

6.9

7.9

82.0

115.0

80.0

1625.0

8-Jul-17

7.0

7.6

58.9

37.8

76.5

50.0

10-Jul-17

6.8

7.4

9.7

12.1

11.5

30.5

11-Jul-17#

#

#

6.8

8.5

7.0

15.0

12-Jul-17

6.7

7.7

24.6

21.6

15.0

53.0

14-Jul-17

6.3

7.3

8.1

8.3

9.0

14.0

18-Jul-17

8.2

8.3

211.0

538.5

123.5

297.0

20-Jul-17

6.3

7.1

19.4

29.5

17.5

67.0

22-Jul-17

7.0

7.3

6.6

89.8

9.0

179.0

24-Jul-17

6.5

7.0

45.9

101.5

16.0

161.0

26-Jul-17

6.9

7.1

13.7

14.6

8.0

27.0

28-Jul-17

6.9

7.0

22.8

28.9

14.0

56.5

31-Jul-17

6.8

6.8

15.0

24.5

6.0

52.5

Remarks:

bold with underline indicated Limit Level exceedance

# Additional water quality monitoring at the exceeded location(s) due to two consecutive monitoring days indicated Limit Level exceedance.

 

Table 6-5      Action and Limit (A/L) Levels Exceedance Recorded

Location

Dissolved Oxygen

Turbidity

Suspended Solids

Total Exceedance

Project Related exceedance

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

WM1

0

0

0

0

0

0

0

0

0

0

WM2A(a)

0

0

0

8

0

10

0

18

0

0

WM2B

0

0

0

0

0

0

0

0

0

0

WM3x

0

0

0

1

0

1

0

2

0

0

WM4

0

0

0

4

0

4

0

8

0

0

No of Exceedance

0

0

0

13

0

15

0

28

0

0

 

6.2.3                 In this Reporting Period, a total of twenty-eight (28) Limit Level (LL) exceedances, namely thirteen (13) LL exceedance of turbidity and fifteen (15) LL exceedances of Suspended Solids were recorded for the Project and they are summarized in Table 6-5.  According to the investigation result, all the exceedances were concluded as non-project related.

 

6.2.4                 NOE was issued to relevant parties upon confirmation of the monitoring result.  The investigation results and summary of exceedances are summarized in Table 6-6.  The details of the completed investigation reports for the exceedances are attached in Appendix N.

Table 6-6      Summary of Water Quality Exceedance in the Reporting Period

Date of Exceedance

Location

Exceeded Parameter

Cause of Water Quality Exceedance In Brief

4, 5, 6 and 7 July 2017

WM2A(a)

NTU & SS

There were successive rainy days on 4 to 7 July 2017.  The water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment.  Trails of washing out soil from the vegetation slope adjacent to the river course were observed.  In addition, during 4 to 7 July 2017, the Contractor observed that construction works by other Contractor was carried out at the upstream of WM2A(a) and discharge of turbid water into the exiting river course was observed.  In our investigation, the implementation of water mitigation measures on site was in order and no adverse water quality impact was observed.  It is considered that the exceedances were partially caused by the rainstorm as well as the suspected turbid water attributed by construction works by others.

8 and 10 July 2017

WM2A(a)

NTU & SS

It rained on 8 July 2017 and the water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment. In our investigation, the implementation of water mitigation measures on site was in order and no adverse water quality impact was observed.  It is considered that the exceedances were partially caused by the rainstorm as well as the suspected turbid water attributed by construction works by others.

6, 7 and 8 July 2017

WM4

NTU & SS

There were consecutive rainy days on 6 to 8 July 2017.  The water quality throughout the water channel was deteriorated by the stirred up sediment and runoff from the surrounding environment.  During weekly site inspection at the works area adjacent to river channel, no adverse water quality impact was observed with the mitigation measures implemented by the Contractor. However, turbid water was observed in the existing river channel under the influence of rain. The site condition was generally in order and no abnormal situation under the Contract was identified.  In our investigation, it is considered that exceedances were related to the impact of rain and unlikely related to the works under the Contracts 2 and 3.

8 July 2017

WM3x

NTU & SS

It rained on 8 July 2017 and the water quality in the river course was deteriorated by rain and stirred up sediment. Moreover, it was noted that the monitored channel was also received the storm water from road surface of Sha Tau Kok Road and the water quality at WM3x was highly affected by the road runoff especially during rainy day.  The construction site was general in order and no adverse water quality impact was observed. Based on the above investigation, it is considered that the exceedances were due to rain and unlikely caused by the works under Contract 6.

18, 19 and 20 July 2017

WM2A(a)

NTU & SS

There were successive rainy days on 18 to 20 July 2017 in which Amber rainstorm signal was issued on 18 July 2017.  The water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment.  On 19 and 20 July 2017, it was observed that the nylon dam was deflated and muddy water trapped in the nylon dam was flowing to downstream. In our investigation, the implementation of water mitigation measures on site was in order and no adverse water quality impact was observed.  It is considered that the exceedances were due to residual impact of rain and not due to works under Contract 6.

18 July 2017

WM4

NTU & SS

There was heavy rainstorm (total rainfall at 134.3mm) 18 July 2017. The water quality throughout the water channel was therefore deteriorated by the stirred up sediment and runoff from the surrounding environment. During weekly site inspection at the works area adjacent to river channel, no adverse water quality impact was observed with the mitigation measures implemented by the Contractor. However, turbid water was observed in the existing river by the impact of rain.  Besides, the site condition was generally in order and no abnormal situation under the Contract was identified. In our investigation, it is considered that exceedances were related to the impact of rain and unlikely related to the work under the Contracts 2 and 3.

24 and 25 July 2017

WM2A(a)

NTU & SS

There was heavy rainstorm on 23 July 2017. The water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment. The muddy water was trapped at the nylon dam which deflated in the morning on 24 July 2017. In addition, during 24 and 25 July 2017, the Contractor observed that construction works by other Contractor was carried out at the upstream of WM2A(a) and discharge of turbid water into the exiting river course was observed.  In our investigation, the implementation of water mitigation measures on site was in order and no adverse water quality impact was observed.  It is considered that the exceedances were partially caused by the rainstorm as well as the suspected turbid water attributed by construction works by others.

 


 

7                    Ecology Monitoring

7.1              General

7.1.1                 Ecology monitoring for woodland compensation was shall be conducted at bi-monthly interval.  The last ecological monitoring report (May - June 2017) was submitted to EPD on 14 July 2017.  In the Reporting Period, ecological monitoring was not necessary to be carried out.


 

8                    Waste Management

8.1              General Waste Management

8.1.1                 Waste management was carried out in accordance with the Waste Management Plan (WMP) for each contract.

 

8.2              Records of Waste Quantities

8.2.1                 All types of waste arising from the construction work are classified into the following:

l Construction & Demolition (C&D) Material;

l Chemical Waste;

l General Refuse; and

l Excavated Soil.

 

8.2.2                 The quantities of waste for disposal in this Reporting Period are summarized in Tables 8-1 and 8-2 and the Monthly Summary Waste Flow Table is shown in Appendix L.  Whenever possible, materials were reused on-site as far as practicable.

Table 8-1         Summary of Quantities of Inert C&D Materials for the Project

Type of Waste

Contract 2

Contract 3

Contract 4

Contract 6

Contract 7

Contract SS C505

Total Qty.

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

C&D Materials (Inert)

(in '000m3)

56.6085

--

1.917

--

0

--

0.934

--

0.931

--

8.101

--

68.4915

Reused in this Contract (Inert)

(in '000 m3)

0.8453

--

0.120

--

0

--

0

--

0

--

0.223

--

1.1883

Reused in other Contracts/ Projects (Inert)

(in '000 m3)

20.1780

C6/ NENT# & other projects approved by the ER

0

--

0

--

0

--

0

--

0

--

20.178

Disposal as Public Fill (Inert)

(in '000 m3)

35.5852

Tuen Mun 38

1.617

Tuen Mun 38

0

--

0.934

Tuen Mun 38

0.931

Tuen Mun 38

7.878

TKO 137

46.9452

Remark #: The C&D materials were delivered to NENT for reuse by laying cover of the landfilling area.

 

Table 8-2        Summary of Quantities of C&D Wastes for the Project

Type of Waste

Contract 2

Contract 3

Contract 4

Contract 6

Contract 7

Contract SS C505

Total

Quantity

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Recycled Metal (¡¥000kg) #

374.330

Licensed collector

0

-

0

--

0

--

2

Licensed collector

296.540

Licensed collector

672.87

Recycled Paper / Cardboard Packing (¡¥000kg) #

0.300

Licensed collector

0

-

0

-

0

-

0.04

Licensed collector

0.650

Licensed collector

0.99

Recycled Plastic (¡¥000kg) #

2.180

Licensed collector

0

-

0

--

0

--

0.001

Licensed collector

1.040

Licensed collector

3.221

Chemical Wastes (¡¥000kg) #

2.844

Licensed collector

0

-

0

--

0

--

0

--

0

--

2.844

General Refuses (¡¥000m3)

0.1970

NENT

0.065

NENT

0

--

0.288

NENT

0.025

NENT

1.651

NENT

2.226

Remark #: Unit of recycled metal, recycled paper/ cardboard packing, recycled plastic and chemical waste for Contract 3 was in (¡¥000m3).

 

 


9                    Site Inspection

9.1              requirements

9.1.1                 According to the approved EM&A Manual, the environmental site inspection shall be formulation by ET Leader.  Weekly environmental site inspections should carry out to confirm the environmental performance.

 

9.2              Findings / Deficiencies During the Reporting Month

Contract 2

9.2.1                 In the Reporting Period, joint site inspection for Contract 2 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 7, 14, 21 and 28 July 2017.  No non-compliance was noted.

 

9.2.2                 The findings / deficiencies of Contract 2 that observed during the weekly site inspection are listed in Table 9-1.

Table 9-1           Site Observations for Contract 2

Date

Findings / Deficiencies

Follow-Up Status

7 July 2017

Ÿ  Tubid water discharging from the outlet was observed. De-silting facilities should be improved to make sure all water discharge from site should comply with license requirement. (Admin-building)

Ÿ  The Contractor de-sludged sedimentation tank, and make sure wastewater treatment facilities operated efficient..

14 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

21 July 2017

Ÿ  As a reminder, stagnant water cumulated on site after rainstorm should be removed to prevent mosquito breeding. (South Portal)

Ÿ  Not required for reminder.

28 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

Contract 3

9.2.3                 In the Reporting Period, joint site inspection for Contract 3 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 19 and 27 July 2017.  No non-compliance was noted.

 

9.2.4                 The findings / deficiencies of Contract 3 that observed during the weekly site inspection are listed in Table 9-2.

Table 9-2           Site Observations for Contract 3

Date

Findings / Deficiencies

Follow-Up Status

6 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

13 July 2017

Ÿ  It was reminded that stockpile or cement bags should be covered entirely to prevent dust emission and surface runoff.

Ÿ  NA

19 July 2017

Ÿ  Accumulation of stagnant water observed at the bridge. The contractor was advised to clear the stagnant water to avoid mosquito breeding.

Ÿ  Mosquito control measure was applied on the stagnant water.

27 July 2017

Ÿ  Broken cement bags placed next to the gully were observed. The Contractor should remove the cements bags to prevent generation of turbid water and water pollution. (Tai Wo Service Road West)

Ÿ  The broken cement bags were removed away from the gully.

Ÿ  Free standing chemical containers were observed, the Contractor should provide drip tray underneath to prevent leaking on ground. (Tai Wo Service Road East).

Ÿ  Free standing chemical containers were placed on drip trays.

Ÿ  The Contractor was reminded to cover the entire slope next to the river course with impervious sheet to minimize muddy runoff.

Ÿ  Not required for reminder.

 

Contract 4

9.2.5                 In the Reporting Period, joint site inspection for Contract 4 to evaluate the site environmental performance has been carried out by the RE, ET and the Contractor on 7, 14, 21 and 24 July 2017 in which IEC joined the site inspection on 24 July 2017.  No non-compliance was noted.  

 

9.2.6                 The findings / deficiencies of Contract 4 that observed during the weekly site inspection are listed in Table 9-3.

Table 9-3           Site Observations for Contract 4

Date

Findings / Deficiencies

Follow-Up Status

7 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

14 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

21 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

24 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

Contract 6

9.2.7                 In the Reporting Period, joint site inspection for Contract 6 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 20 and 27 July 2017.  No non-compliance was noted.

 

9.2.8                 The findings / deficiencies of Contract 6 that observed during the weekly site inspection are listed in Table 9-4.

Table 9-4           Site Observations for Contract 6

Date

Findings / Deficiencies

Follow-Up Status

6 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

13 July 2017

Ÿ  Free standing chemical container was observed in North Portal, the Contractor should provide drip tray for the chemical container.

Ÿ  The free-standing chemical container was removed from site.

20 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

27 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

Contract SS C505

9.2.9                 In the Reporting Period, joint site inspection for Contract SS C505 to evaluate the site environmental performance has been carried out by the RE, ET and the Contractor on 5, 12, 19 and 26 July 2017 in which IEC joined the site inspection on 26 July 2017.  No non-compliance was noted. 

 

9.2.10             The findings / deficiencies of Contract SS C505 that observed during the weekly site inspection are listed in Table 9-5.

Table 9-5           Site Observations for Contract SS C505

Date

Findings / Deficiencies

Follow-Up Status

5 July 2017

Ÿ  Accumulation of waste was observed on the ground. The contractor was advised to dispose the waste regularly.

Ÿ  The contractor was reminded to clean stagnant water within work area of PTB.

Ÿ  Accumulation of waste was disposed regularly.

Ÿ  Not required for reminder.

12 July 2017

Ÿ  Construction waste was observed on the ground of PTB and PTB East. The contractor was advised to dispose construction wastes regularly.

Ÿ  Stagnant water was observed at the drip tray under air compressor at PTB West. The contractor was advised to clear the stagnant water to avoid mosquito breeding.

Ÿ  Chemical containers were observed without drip tray at site entrance area. The contractor was advised to place chemical containers inside drip tray.

Ÿ  The contractor was reminded to clean stagnant water within site area.

Ÿ  Construction waste was disposed regularly.

 

Ÿ  Stagnant water at the drip tray was removed.

 

Ÿ  Chemical containers was removed from site area.

 

Ÿ  Not required for reminder.

19 July 2017

Ÿ  Chemical containers outside drip tray were observed at work area of PTB. The contractor was advised to place chemical containers inside drip tray.

Ÿ  The contractor was reminded to clear stagnant water within site area after raining.

Ÿ  Chemical containers were placed inside drip tray. Last observation closed.

Ÿ  Not required for reminder.

26 July 2017

Ÿ  The contractor was reminded to clear stagnant water at work area of building 1 to avoid mosquito breeding.

Ÿ  Not required for reminder.

 

Contract 7

9.2.11             In the Reporting Period, joint site inspection for Contract 7 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 7, 14, 18 and 28 July 2017.  No non-compliance was noted.

 

9.2.12             The findings / deficiencies of Contract 7 that observed during the weekly site inspection are listed in Table 9-6.

Table 9-6           Site Observations for Contract 7

Date

Findings / Deficiencies

Follow-Up Status

7 July 2017

Ÿ  As a reminder, stagnant water cumulated inside the drip tray after rainstorm should be removed.

Ÿ  Not required for reminder.

14 July 2017

Ÿ  Drip tray should be provided for all chemical storage on-site.

Ÿ  The chemical containers were removed from site.

18 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

28 July 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

9.2.13             General housekeeping such as daily site tidiness and cleanliness should be maintained for all Contracts.  Furthermore, the Contractors were reminded to implement Waste Management Plan of the Project.

10                Environmental Complaint and Non-Compliance

10.1          Environmental Complaint, Summons and Prosecutions

10.1.1             In the Reporting Period, no environmental complaint under the EM&A programme was received.  However, as notified by the RE in the Reporting Period, a summons (ref. no. FLS7210/2017 dated 20 June 2017) was issued to the Contractor of Contract 2 (Dragages Hong Kong Limited) for contravening the Water Pollution Control (General) Regulations.  The summons details is presented in following

 

¡§On 29 December 2016 at the construction site for CEDD contract no: CV/2012/08 Liantang/ Heung Yuen Wai boundary Control Site formation & Infrastructure Works ¡V Contract 2 at Mid Vent Portal at Po Kat Tsai Road, Lau Shui Heung, North District, New Territories, did contravene the provision of the licence, numbered WT00025594-2016 granted on 7 October 2016 under the Water Pollution Control Ordinance, Cap. 358, namely by failing to notify and explain to the Authority within 24 hours upon the occurrence of an accidental discharge or any emergency bypass or an overflow of untreated effluent or an operation upset which places the discharge in a temporary state of non-compliance with the licence as required by condition c6.2 of the licence, the purpose of which was as specified in Regulation 17B(2) (K) of the Water Pollution Control (General) Regulation, Cap. 358.¡¨

 

10.1.2             During hearing on 25 July 2017, DHK pleaded guilty to the EPD summons ¡V failing to report discharge within 24 hours of its occurrence.  Therefore, a summons and prosecutions was registered for Contract 2 under the EM&A programme in the Reporting Period.

 

10.1.3             The statistical summary table of environmental complaint is presented in Tables 10-1, 10-2 and 10-3.

Table 10-1         Statistical Summary of Environmental Complaints

Reporting Period

Contract No

Environmental Complaint Statistics

Project related complaint

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 June 2017

Contract 2

0

29

Ÿ  (17)Water Quality

Ÿ  (7) Dust

Ÿ  (4) Noise

Ÿ  (1) dust & noise

(5) water

(2) dust

(1) noise

06 Nov 2013 ¡V

30 June 2017

Contract 3

0

5

Ÿ  (1) Dust

Ÿ  (3) Water quality

Ÿ  (1) Noise

0

16 Aug 2013 ¡V

30 June 2017

Contract 5

0

4

Ÿ  (3) Dust

Ÿ  (1) Noise

0

16 Aug 2013 ¡V

30 June 2017

Contract 6

0

32

Ÿ  (23) Water Quality

Ÿ  (6) Dust

Ÿ  (2) Noise

Ÿ  (1) Nuisance

(6) water

(2) dust

(1) Nuisance

15 Feb 2016 ¡V

30 June 2017

Contract 7

0

1

Ÿ  (1) Noise

0

16 Aug 2013 ¡V

30 June 2017

SS C505

0

2

Ÿ  (1) Noise

Ÿ  (1) dust

0

1 ¡V 31 July 2017

Contract 2

0

29

Ÿ  (17)Water Quality

Ÿ  (7) Dust

Ÿ  (4) Noise

Ÿ  (1) dust & noise

NA

Contract 3

0

5

Ÿ  (1) Dust

Ÿ  (3) Water quality

Ÿ  (1) Noise

NA

Contract 4

0

0

NA

NA

Contract 6

0

32

Ÿ  (23) Water Quality

Ÿ  (6) Dust

Ÿ  (2) Noise

Ÿ  (1) Nuisance

NA

Contract 7

0

1

Ÿ  (1) Noise

NA

SS C505

0

2

Ÿ  (1) Noise

Ÿ  (1) dust

NA

 

Table 10-2         Statistical Summary of Environmental Summons

Reporting Period

Contract No

Environmental Summons Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 June 2017

Contract 2

0

0

NA

06 Nov 2013 ¡V

30 June 2017

Contract 3

0

0

NA

16 Aug 2013 ¡V

30 June 2017

Contract 5

0

0

NA

16 Aug 2013 ¡V

30 June 2017

Contract 6

0

0

NA

15 Feb 2016 ¡V

30 June 2017

Contract 7

0

0

NA

16 Aug 2013 ¡V

30 June 2017

SS C505

0

0

NA

1 ¡V 31 July 2017

Contract 2

1

1

contravening the Water Pollution Control (General) Regulations

Contract 3

0

0

NA

Contract 4

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 

Table 10-3         Statistical Summary of Environmental Prosecutions

Reporting Period

Contract No

Environmental Prosecutions Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 June 2017

Contract 2

0

0

NA

06 Nov 2013 ¡V

30 June 2017

Contract 3

0

0

NA

16 Aug 2013 ¡V

30 June 2017

Contract 5

0

0

NA

16 Aug 2013 ¡V

30 June 2017

Contract 6

0

0

NA

15 Feb 2016 ¡V

30 June 2017

Contract 7

0

0

NA

16 Aug 2013 ¡V

30 June 2017

SS C505

0

0

NA

1 ¡V 31 July 2017

Contract 2

1

1

contravening the Water Pollution Control (General) Regulations

Contract 3

0

0

NA

Contract 4

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 


11                Implementation Status of Mitigation Measures

11.1          General Requirements

11.1.1             The environmental mitigation measures that recommended in the Implementation Schedule for Environmental Mitigation Measures (ISEMM) in the approved EM&A Manual covered the issues of dust, noise, water and waste and they are summarized presented in Appendix M.

 

11.1.2             All contracts under the Project shall be implementing the required environmental mitigation measures according to the approved EM&A Manual as subject to the site condition.  Environmental mitigation measures generally implemented by Contracts 2, 3, 4, 5, 6, 7 and Contract SS C505 in this Reporting Period are summarized in Table 11-1. 

 

Table 11-1         Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Water Quality

¡P       Wastewater to be treated by the wastewater treatment facilities i.e. sedimentation tank or similar facility before discharge.

Air Quality

¡P       Maintain damp / wet surface on access road

¡P       Low vehicular speed within the works areas.

¡P       All vehicles must use wheel washing facility before off site

¡P       Sprayed water during breaking works

¡P       A cleaning truck was regularly performed on the public road to prevent fugitive dust emission

Noise

¡P       Restrain operation time of plants from 07:00 to 19:00 on any working day except for Public Holiday and Sunday.

¡P       Keep good maintenance of plants

¡P       Place noisy plants away from residence or school

¡P       Provide noise barriers or hoarding to enclose the noisy plants or works

¡P       Shut down the plants when not in used.

Waste and Chemical Management

¡P       On-site sorting prior to disposal

¡P       Follow requirements and procedures of the ¡§Trip-ticket System¡¨

¡P       Predict required quantity of concrete accurately

¡P       Collect the unused fresh concrete at designated locations in the sites for subsequent disposal

General

¡P       The site was generally kept tidy and clean.

 

11.2          Tentative Construction Activities in the Coming Month

11.2.1             As advised by the ER, the construction works under Contract 5 was substantially completed on 31 August 2016.  Construction activities for other Contracts in the coming month are listed below:

Contract 2

Mid-Vent Portal

Ÿ    Adit tunnel water proofing and lining

Ÿ    Stud tunnel post-excavation activities and earthworks

Ÿ    Ventilation building superstructure and internal structure works

Ÿ    Structure connecting the adit tunnel, and ventilation building

Ÿ    Temporary drainage system

North Portal

Ÿ    Southbound tunnel enlargement, waterproofing and lining

Ÿ    Southbound tunnel internal structure, backfilling and construction of cross passage

Ÿ    Northbound tunnel top-heading and bench excavation, waterproofing and lining

Ÿ    Erection of acoustic curtain door and tunnel door for Northbound and Southbound tunnels

North ventilation building superstructure, internal structure and backfilling

South Portal

Ÿ    Southbound and Northbound D&B excavation and mucking out

Ÿ    Tunnel internal structure, construction of CP and tunnel backfilling

Ÿ    South ventilation building superstructure, internal structure, UU and E&M installation

Ÿ    Southbound and Northbound tunnel invert, waterproofing and lining

Admin Building

Ÿ    Construction of permanent drainage and fencing wall

Ÿ    Building internal structure, fitting out work, curtain wall, drainage, UU and E&M installation

Contract 3

Ÿ   Construction of Boundary Wall for Pumping Station

Ÿ   Installation of Noise Barrier steel column & panel

Ÿ   Remaining works on New Kiu Tau Footbridge

Ÿ   Mini-pile Installation Works

Ÿ   Noise barrier construction

Ÿ   Pier / Pier Table construction

Ÿ   Pipe Jacking Works DN2200 Water Mains

Ÿ   Road works

Ÿ   Viaduct segment erection

Ÿ   Water Main Laying

Ÿ   Parapet Installation

Ÿ   Planter wall construction

Ÿ   Construction of Profile barrier on Viaduct Deck

Ÿ   Drainage Work

Ÿ   Stressing of External Tendon

Ÿ   Construction of Abutment Wall

Contract 4

Ÿ   System design

Ÿ   E&M installation at Admin Building

Ÿ   E&A installation in tunnel

Contract 6

Ÿ   Bored Piling

Ÿ   Bridge Pier Construction

Ÿ   Segment section

Ÿ   Sewage Treatment Plant Construction

Ÿ   Tunnel Works

Ÿ   Tunnel Ventilation Building Construction

Contract 7

Ÿ   U-trough and abutment construction at Bridge A and Bridge E

Ÿ   Column construction at Bridge A and E

Ÿ   Deck construction at Bridge B and D

Ÿ   Construction of parapet wall and Façade Bridge C

Contract SS C505

Ÿ   Building no. 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 18, 36 and 41 construction

Ÿ   Tower crane operation

Ÿ   Bridge construction works including construction of bridge column, retaining wall, pile cap, pier, abutment, road and finishes works

Ÿ   Underground drainage works, Road Works, CLP Cable laying and Landscaping

Ÿ   Formwork and falsework for PTB¡¦s slab construction and Bridges Decks

Ÿ   Construction PTB M/F, 1/F, 2/F and Roof flat slab

Ÿ   Steel beam works for maintenance platform for PTB

Ÿ   PTB backfilling works

Ÿ   Elevated Walkway E1, E2, E3 and E4 construction

Ÿ   Bridge deck construction for Bridges 1 - 5

 

11.3          Key Issues for the Coming Month

11.3.1             Key issues to be considered in the coming month for Contracts 2, 3, 4, 6, 7 and SS C505 include:

Ÿ    Implementation of control measures for rainstorm;

Ÿ    Regular clearance of stagnant water during wet season;

Ÿ    Implementation of dust suppression measures at all times;

Ÿ    Potential wastewater quality impact due to surface runoff;

Ÿ    Potential fugitive dust quality impact due from the dry/loose/exposure soil surface/dusty material;

Ÿ    Disposal of empty engine oil containers within site area;

Ÿ    Ensure dust suppression measures are implemented properly;

Ÿ    Sediment catch-pits and silt removal facilities should be regularly maintained;

Ÿ    Management of chemical wastes;

Ÿ    Discharge of site effluent to the nearby wetland, stockpiling or disposal of materials, and any dredging or construction area at this area are prohibited;

Ÿ    Follow-up of improvement on general waste management issues; and

Ÿ    Implementation of construction noise preventative control measures

 


12                Conclusions and Recommendations

12.1          Conclusions

12.1.1             This is the 48th monthly EM&A report presenting the monitoring results and inspection findings for the Reporting Period from 1 to 31 July 2017.

 

12.1.2             For air quality monitoring, no 1-hour monitoring results triggered the Action or Limit Levels were recorded.  For 24-hour TSP monitoring, an Action Level exceedance was recorded at AM5a on 29 July 2017.  Notification of Exceedance (NOE) was issued to relevant parties on 4 August 2017 and the investigation for the cause of exceedance is underway.

 

12.1.3             In the Reporting Period, no construction noise measurement results that exceeded the Limit Level were recorded.  Moreover, no valid noise complaint which triggered an Action Level exceedance was recorded.

 

12.1.4             For water quality monitoring, a total of twenty-eight (28) Limit Level (LL) exceedances, namely thirteen (13) LL exceedance of turbidity and fifteen (15) LL exceedances of Suspended Solids were recorded for the Project and they are summarized in Table 6-5.  According to the investigation result, all the exceedances were concluded as non-project related.

 

12.1.5             In this Reporting Period, no environmental complaint was received under the EM&A programme.

 

12.1.6             As notified by the RE in the Reporting Period, a summons (ref. no. FLS7210/2017 dated 20 June 2017) was issued to the Contractor of Contract 2 (Dragages Hong Kong Limited) for contravening the Water Pollution Control (General) Regulations.   During hearing on 25 July 2017, DHK pleaded guilty to the EPD summons ¡V failing to report discharge within 24 hours of its occurrence.  Therefore, a summons and prosecutions was registered for Contract 2 under the EM&A programme in the Reporting Period.

 

12.1.7             During the Reporting Period, weekly joint site inspection by the RE, IEC, ET with the relevant Main-contractor were carried out for Contracts 2, 3, 4, 6 and 7 in accordance with the EM&A Manual stipulation.  For Contract SS C505, weekly joint site inspection was carried out by the RE, IEC, ET and main-contractor whereas IEC performed monthly site inspection.  No non-compliance observed during the site inspection. 

 

12.2          Recommendations

12.2.1             During wet season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.

 

12.2.2             In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

12.2.3             Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.

 

12.2.4             Since most of construction sites under the Project are located adjacent to villages, the Contractors should fully implement air quality mitigation measures to reduce construction dust emission.

 

12.2.5             Furthermore, daily cleaning and weekly tidiness shall be properly performed and maintained. In addition, mosquito control should be kept to prevent mosquito breeding on site.