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.34) ¡V May 2016

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

14 June 2016

TCS00694/13/600/R0372v2

Martin Li

(Assistant Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

10 June 2016

First Submission

2

14 June 2016

Amended against IEC¡¦s comment on 13 June 2016

 

 

 


 

 

 

 

executive summary

ES01            This is the 34th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 May 2016 (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 (TCSS), 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 construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project currently included Contract 2, Contract 3, Contract 5, 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

147

24-hour TSP

9

45

Construction Noise

Leq(30min) Daytime

10

45

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C,

13 Scheduled & 2 extra

WM2A & WM2A-C

12 Scheduled & 5 extra

WM2B & WM2B-C

13 Scheduled & 0 extra

WM3 &WM3-C

13 Scheduled & 4 extra

WM4, WM4-CA &WM4-CB

13 Scheduled & 0 extra

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

5

Contract 5

5

Contract 6

4

Contract 7

5

Contract SS C505

4

Note: Extra monitoring day was due to measurement results exceedance

One scheduled day and one extra day were unsuccessful conducted water quality monitoring at WM2A

 

 

Breach of Action and Limit (A/L) Levels

ES04            In the Reporting Period, no air quality and construction noise exceedance was registered for the Project. For water quality monitoring, a total of twenty-seven (27) Limit Level (LL) exceedances, namely fifteen (15) LL exceedances of turbidity and twelve (12) LL exceedances of Suspended Solids.  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

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

24-hour TSP

0

0

0

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

Water Quality

DO

0

0

0

--

--

Turbidity

0

15

15

Total one exceedance is due to the project construction activities and fourteen exceedance are not due to the project construction activities

The relevant Contractor  shall implemented water quality mitigation measures in accordance with ISEMM of the EM&A Manual requirements

SS

0

12

12

Total one exceedance is due to the project construction activities and eleven exceedance are not due to the project construction activities

 

Environmental Complaint

ES05            In this Reporting Period, three (3) documented environmental complaints related Contract 2 and/or Contract 6 are received by CEDD or 1823. The complaint received on 26 May 2016 is under investigation while the investigation report of the complaint received on 28 May 2016 and 31 May 2016 are under review.

 

Notification of Summons and Successful Prosecutions

ES06            No environmental summons or successful prosecutions were recorded in the Reporting Period.  

 

Reporting Change

ES07            The Noise Monitoring Location NM2 was relocated to NM2a in the Reporting Period starting from 9 May 2016. The proposal for Noise Monitoring Location relocation from NM2 to NM2a was submitted to IEC and verified by IEC on 6 May 2016.

 

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 6, 13, 20 and 27 May 2016.  No non-compliance was noted.

 

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 5, 9, 18, 23, 30 May 2016.  No non-compliance was noted.

 

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 5 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24, 31 May 2016.  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 5, 12, 19, 26 May 2016.  No non-compliance was noted.

 

ES12            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, IEC, ET and the Contractor on 4, 11, 18, 25 May 2016.  No non-compliance was noted.

 

ES13            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 3, 10, 17, 24, 31 May 2016.  No non-compliance was noted.

 

Future Key Issues

ES14            As wet season has come, 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 or public area would be the key issue.  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.  Moreover, 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.

 

ES15            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.

 

ES16            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 in Reporting Month   23

5     Construction Noise Monitoring   26

5.1            General  26

5.2            Noise Monitoring Results in Reporting Month   26

6     Water Quality Monitoring   26

6.1            General  27

6.2            Results of Water Quality Monitoring   27

7     Waste Management   35

7.1            General Waste Management  35

7.2            Records of Waste Quantities  35

8     Site Inspection   36

8.1            requirements  36

8.2            Findings / Deficiencies During the Reporting Month   36

9     Environmental Complaint and Non-Compliance   ¿ù»~! ©|¥¼©w¸q®ÑÅÒ¡C

9.1            Environmental Complaint, Summons and Prosecution   41

10   Implementation Status of Mitigation Measures  47

10.1          General Requirements  47

10.2          Tentative Construction Activities in the Coming Month   47

10.3          Key Issues for the Coming Month   49

11   Conclusions and Recommendations  50

11.1          Conclusions  50

11.2          Recommendations  50

 


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 (Contract 3 and 5)

Table 5-2        Summary of Construction Noise Monitoring Results (Contract 2 and 6)

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 5 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        Breaches of Water Quality Monitoring Criteria in Reporting Period

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

Table 6-7        Summary of Water Quality Exceedance which were under review by IEC in April 2016

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

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

Table 8-1        Site Observations for Contract 2

Table 8-2        Site Observations for Contract 3

Table 8-3        Site Observations for Contract 5

Table 8-4        Site Observations for Contract 6

Table 8-5        Site Observations for Contract SS C505

Table 8-6        Site Observations for Contract 7

Table 9-1        Statistical Summary of Environmental Complaints

Table 9-2        Statistical Summary of Environmental Summons

Table 9-3        Statistical Summary of Environmental Prosecution

Table 10-1      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. 

 

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 34th monthly EM&A report presenting the monitoring results and inspection findings for reporting period from 1 to 31 May 2016.

 

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     Waste Management

Section 8     Site Inspections

Section 9     Environmental Complaints and Non-Compliance

Section 10   Implementation Status of Mitigation Measures

Section 11   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. However, the major construction work still is not yet commenced.  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, 5, 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    Tube excavation (NB + SB)

Ÿ    Adit invert slab

Ÿ    Ventilation building superstructure

North Portal

Ÿ    Slope stabilization and retaining wall

Ÿ    Northbound top heading excavation and tunnel enlargement

Ÿ    Tunnel Boring Machine (TBM) excavation

South Portal

Ÿ    Southbound and Northbound Drill and Blast (D&B) excavation

Ÿ    Building works superstructure

Admin Building

Ÿ    Building works foundation

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   Cable detection and trial trenches

Ÿ   Filling works at Tong Hang East

Ÿ   Storm drain laying

Ÿ   Noise barrier construction

Ÿ   Pier / pier table construction

Ÿ   Pile cap works

Ÿ   Portal beam construction

Ÿ   Pre-drilling Works and Piling Works for Viaduct

Ÿ   Pre-drilling Works and Piling Works for Noise Barrier

Ÿ   Retaining Wall construction

Ÿ   Road works

Ÿ   Sewer works

Ÿ   Slope works

Ÿ   Socket H-pile Installation

Ÿ   Steel Posts and Panels Installation of Noise Barrier

Ÿ   Tree Felling Works

Ÿ   Utilities Duct Laying

Ÿ   Viaduct segment erection

 

Contract 4 (Contract number to be assigned)

2.4.4                 The Contract was awarded in mid-April 2016 and the major construction work has not yet commenced.

 

Contract 5 (CV/2013/03)

2.4.5                 The Contract awarded in April 2013 and commenced on August 2013.  In this Reporting Period, construction activities conducted are listed below:

Ÿ   Construction of rising main (VO61) at existing Lin Ma Hang (LMH) Road

Ÿ   Bituminous laying at existing LMH road

Ÿ   Brick laying at footpath of LMH road

Ÿ   Planting at proposed and existing LMH road

Ÿ   Installation of Underground Utility (UU) at proposed and existing LMH road

Ÿ   Irrigation at proposed LMH Road

 

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   Slope Works

Ÿ   Bored Piling

Ÿ   Abutment and Pier Construction

Ÿ   Sewage Treatment Plant Construction

Ÿ   Road Works

Ÿ   Tunnel Works

 

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   Ground Investigation Works for Bridge A, C and E

Ÿ   Piling Works for Bridge B, C, D

 

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   General Site Setup

Ÿ   CLP temporally sub-station works

Ÿ   Erection of Welfare Shelter

Ÿ   Building no. 5, 9 and 36 construction

Ÿ   Pile cap construction for Building no. 4, 6 & 7

Ÿ   Tower crane TC10 construction

Ÿ   H-pile works and load test

Ÿ   Disassembly of crawler crane

Ÿ   Grouting and full core to completed bored piles

Ÿ   Bridge construction works including construction of bridge column, retaining wall, pile cap

Ÿ   Underground drainage works

Ÿ   Prototype ¡§A¡¨ Construction works

Ÿ   Prototype ¡§B¡¨ footing construction works

Ÿ   Formwork and falsework for PTB¡¦s slap construction

Ÿ   Pile Cap construction for PTB

 

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, 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, 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-RN0738-15

18 Nov 2015

8 May 2016

GW-RN0795-15

7 Dec 2015

6 Jun 2016

GW-RN0893-15

01-Jan-2016

27-Jun-2016

GW-RN0057-16

28-Feb-2016

27-May-2016

GW-RN0059-16

24-Feb-2016

23-Apr-2016

GW-RN0067-16

28-Feb-2016

27-May-2016

GW-RN0068-16

23-Feb-2016

22-Apr-2016

GW-RN0071-16

02-Feb-16

31-Jul-2016

GW-RN0077-16

07-Feb-2016

06-Aug-2016

GW-RN0167-16

18-Mar-2016

17-May-2016

GW-RN0199-16

24-Mar-2016

17-Sep-2016

GW-RN0323-16

30-Apr-2016

29-Jun-2016

GW-RN0321-16

30-Apr-2016

29-Jun-2016

GW-RN0359-16

20-May-2016

19-Aug-2016

GW-RN0378-16

30-May-2016

29-Aug-2016

GW-RN0332-16

09-May-2016

08-Aug-2016

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-RN0892-15

9 Jan 2016

8 July 2016

GW-RN0064-16

16 Feb 2016

13 Aug 2016

GW-RN0086-16

16 Feb 2016

7 May 2016

GW-RN0094-16

6 Mar 2016

22 May 2016

GW-RN0096-16

6 Mar 2016

12 Jun 2016

GW-RN0097-16

1 Mar 2016

17 Jun 2016

GW-RN0098-16

1 Mar 2016

4 Sep 2016

GW-RN0113-16

25 Feb 2016

24 Aug 2016

GW-RN0115-16

1 Mar 2016

7 May 2016

GW-RN0139-16

2 Mar 2016

24 Aug 2016

GW-RN0140-16

2 Mar 2016

24 Aug 2016

GW-RN0158-16

8 Mar 2016

31 Aug 2016

GW-RN0168-16

15 Mar 2016

14 Jun 2016

GW-RN0170-16

11 Mar 2016

10 Sep 2016

GW-RN0218-16

6 April 2016

30 Sep 2016

GW-RN0233-16

11 April 2016

10 Oct 2016

GW-RN0244-16

16 April 2016

13 May 2016

GW-RN0297-16            

4 May 2016

30 June 2016

GW-RN0303-16

30 April 2016

29 July 2016

GW-RN0307-16

10 May 2016

9 Sep 2016

GW-RN0308-16

10 May 2016

9 Sep 2016

GW-RN0309-16

30 April 2016

29 Oct 2016

GW-RN0305-16

5 May 2016

4 Aug 2016

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

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.: WT00022774-2015

17 Nov 2015

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

PP-RN0013-16

14 April 2016

22 May 2016

GW-RN0197-16

23 Mar 2016

22 May 2016

GW-RN0209-16

23 Mar 2016

22 May 2016

PP-RN0007-16

10 Mar 2016

9 May 2016

PP-RN0015-16

16 May 2016

15 July 2016

GW-RN0337-16

23 May 2016

22 July 2016

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.: WT00022774-2015

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-RN0162-16

23 Mar 2016

22 May 2016

                                  Contract 4

1

 

Air pollution Control (Construction Dust) Regulation

Application is under preparation

2

Chemical Waste Producer Registration

Application is under preparation

3

Water Pollution Control Ordinance - Discharge License

Application is under preparation

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Application is under preparation


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 5

Contract 7

AM2

Village House near Lin Ma Hang Road

LMH to Frontier Closed Area

Contract 5

Contract 6

AM3

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

LMH to Frontier Closed Area

Contract 5

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 5

Contract 7

NM2a#

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 5,

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

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

SS C505

Contract 5

Contract 6

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

SS C505

Contract 5

Contract 6

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at downstream 81m 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 on 29th March 2016. If the measured water depth of the monitoring station is lower than 150 mm, alternative location (WM3x and WM2A-Controlx) based on the criteria were selected to perform water monitoring in accordance with the updated EM&A Programme (Rev. 05) (Section 4.1.4)

 

 

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¡¨), 3 consecutive Leq(5min) measurement will depended CNP requirements to undertake.  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 Cesva CB-5 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; and also Leq(15min) in three consecutive 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 PRO20 Handheld Dissolved Oxygen Instrument or YSI Professional DSS 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 pH pen-style meter or YSI Professional DSS 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 or YSI Professional DSS 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

WM2B

WM3

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, 5, 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 in Reporting Month

4.2.1                 In the Reporting Period, a total of 147 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

6-May-16

21

3-May-16

13:00

91

77

87

13-May-16

55

9-May-16

13:41

38

36

41

18-May-16

67

13-May-16

10:12

96

104

91

24-May-16

77

19-May-16

13:00

74

61

68

30-May-16

35

25-May-16

13:11

85

92

90

--

--

31-May-16

11:36

35

30

30

Average

(Range)

51

(21 ¡V 77)

Average

(Range)

68

(30 ¡V 104)

 

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

6-May-16

86

3-May-16

13:03

93

72

87

13-May-16

148

9-May-16

13:32

31

39

43

18-May-16

117

13-May-16

9:55

113

118

87

24-May-16

147

19-May-16

13:04

76

56

71

31-May-16

79

24-May-16

13:07

85

94

90

--

--

31-May-16

11:18

37

25

26

Average

(Range)

116

(79 ¡V 148)

Average

(Range)

69

(25 ¡V 118)

 

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

6-May-16

79

3-May-16

13:07

87

77

87

13-May-16

52

9-May-16

13:23

43

40

36

18-May-16

59

13-May-16

9:48

131

126

103

24-May-16

103

19-May-16

13:08

80

77

82

31-May-16

94

25-May-16

13:01

81

86

85

--

--

31-May-16

11:00

40

27

29

Average

(Range)

77

 (52 ¡V 103)

Average

(Range)

73

 (27 ¡V 131)

 

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

4-May-16

94

5-May-16

10:21

87

80

85

10-May-16

40

11-May-16

13:00

81

98

83

16-May-16

67

17-May-16

10:47

73

70

83

21-May-16

35

23-May-16

10:30

89

75

83

27-May-16

25

28-May-16

10:21

63

71

68

Average

(Range)

52

(25 ¡V 94)

Average

(Range)

79

(63 ¡V 98)

 

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

4-May-16

27

5-May-16

10:22

82

76

80

10-May-16

43

11-May-16

13:30

139

117

126

16-May-16

55

17-May-16

10:49

84

76

92

21-May-16

33

23-May-16

10:31

74

79

84

27-May-16

18

28-May-16

10:24

61

69

64

Average

(Range)

35

(18 ¡V 55)

Average

(Range)

87

 (61 ¡V 139)

 

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

4-May-16

13

5-May-16

10:10

89

84

89

10-May-16

41

11-May-16

13:13

83

96

80

16-May-16

169

17-May-16

11:04

91

79

84

21-May-16

45

23-May-16

10:21

77

83

82

27-May-16

57

28-May-16

10:00

57

69

64

Average

(Range)

65

(13 ¡V 169)

Average

(Range)

80

(57 ¡V 96)

 

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

4-May-16

107

5-May-16

9:06

98

76

87

10-May-16

38

11-May-16

9:30

91

102

95

16-May-16

100

17-May-16

9:23

59

58

61

21-May-16

54

23-May-16

9:15

92

100

84

27-May-16

40

28-May-16

9:25

49

53

48

Average

(Range)

68

(38 ¡V107)

Average

(Range)

77

(48 ¡V 102)

 

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

4-May-16

30

5-May-16

13:01

106

76

86

10-May-16

28

11-May-16

9:43

69

80

74

16-May-16

44

17-May-16

13:00

86

82

71

21-May-16

58

23-May-16

13:04

97

106

87

27-May-16

21

28-May-16

13:06

70

46

39

Average

(Range)

36

(21 ¡V 58)

Average

(Range)

78

(39 -106)

 

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

6-May-16

22

3-May-16

13:08

58

69

62

13-May-16

60

9-May-16

13:09

43

41

42

18-May-16

72

13-May-16

13:14

102

111

92

24-May-16

88

19-May-16

9:54

68

60

65

30-May-16

59

25-May-16

13:01

65

49

59

--

--

31-May-16

9:33

62

47

45

Average

(Range)

60

(22 ¡V 88)

Average

(Range)

63

(41 ¡V 111)

 

4.2.2                 As shown in Tables 4-1 to 4-9, all the 1-hour TSP and 24-hour TSP monitoring results were below the Action/Limit Levels.  No Notification of Exceedance (NOE) was issued in this Reporting Period.

 

4.2.3                 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, 5, 6, 7 and Contract SS C505 and noise monitoring was performed at all designated locations.

 

5.1.2                 Relocation of Noise Monitoring Location NM2 to NM2a was proposed and verified by IEC on 6 May 2016 and was effective on 9 May 2016.

 

5.1.3                 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 in Reporting Month

5.2.1                 In the Reporting Period, a total of 45 event 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

NM2/NM2a*

NM8

NM9

NM10(*)

3-May-16

62

62

58

62

60

9-May-16

67

70*

59

61

67

19-May-16

52

68*

59

68

66

25-May-16

72

72*

58

62

62

31-May-16

67

59*

54

59

60

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

 

5-May-16

63

64

54

60

64

 

11-May-16

64

61

61

65

65

 

17-May-16

63

65

61

51

61

 

23-May-16

60

62

57

63

64

 

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). Furthermore, there was no noise complaints (Action Level exceedance) received by the RE, CEDD, Architect/AR/ and the Contractors in the Reporting Period. Therefore, no Action or Limit Level exceedance was triggered and no corrective action was required.

 


 

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, 5, 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.  Except monitoring station WM4, total twenty-seven (27) Limit Level (LL) of water quality exceedances were respectively recorded at the monitoring stations WM1, WM2A, WM2B and WM3. According to ¡§Event and Action Plan¡¨ stipulation, additional water quality monitoring days respectively were conducted two days for WM1 and its control station, five days for WM2A and its control station, & four days for WM3 and its control stations.

 

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

3-May-16

6.9

7.7

5.7

10.0

7.7

7.7

10.5

9.5

12.5

5-May-16

7.3

7.8

6.3

13.1

5.5

7.5

14.5

6.5

8.0

7-May-16

7.6

7.8

6.8

8.7

5.7

9.2

14.0

6.5

20.0

9-May-16

7.2

7.8

6.6

8.0

5.8

16.5

10.0

5.5

27.5

11-May-16

7.4

7.8

7.1

28.7

11.4

13.9

7.5

8.0

9.5

13-May-16

8.1

8.1

7.3

7.9

7.3

7.0

6.0

5.0

8.0

17-May-16

8.3

8.3

7.5

8.3

185.5

6.8

9.5

167.0

10.5

19-May-16

8.1

8.0

8.3

17.4

8.1

6.5

16.5

9.0

7.5

21-May-16

7.6

7.9

7.3

35.1

27.0

28.4

39.0

26.5

30.0

23-May-16

7.5

7.6

7.1

11.0

761.0

18.0

11.0

435.5

11.0

25-May-16

7.9

7.7

6.8

15.1

8.9

12.9

15.5

9.5

22.0

27-May-16

6.7

7.4

6.2

118.5

107.5

71.2

190.0

163.5

91.5

31-May-16

7.0

7.2

6.5

15.7

10.4

8.7

18.0

12.0

14.0

 

Table 6-2         Water Quality Monitoring Results Associated of Contracts 5, 6 and SS C505

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM1

WM1- Control

WM1

WM1- Control

WM1

WM1- Control

3-May-16

7.6

7.8

40.2

9.3

53.5

8.0

5-May-16

6.9

7.3

23.0

9.1

39.0

8.0

7-May-16

7.5

7.8

19.2

9.8

29.5

7.5

9-May-16

7.0

8.0

31.4

15.2

40.0

9.5

11-May-16

7.9

7.7

20.4

9.9

30.0

8.5

13-May-16

7.7

8.3

42.4

9.2

51.0

8.0

17-May-16

7.3

8.1

69.0

11.1

70.5

7.5

#18-May-16

--

--

35.0

25.1

45.0

39.0

19-May-16

7.4

8.2

70.6

25.2

127.0

11.5

#20-May-16

--

--

12.4

8.7

15.0

3.0

21-May-16

7.6

8.0

46.9

41.6

42.5

37.5

23-May-16

7.3

7.5

19.0

12.7

22.5

9.5

25-May-16

7.4

7.8

12.0

8.9

9.5

6.5

27-May-16

6.5

7.3

35.4

10.5

50.5

9.0

31-May-16

7.4

7.0

16.2

10.6

21.5

11.5

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 6-3         Water Quality Monitoring Results Associated only Contract 6

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM2A

WM2A- C

WM2B

WM2B- C

WM2A

WM2A- C

WM2B

WM2B- C

WM2A

WM2A- C

WM2B

WM2B- C

3-May-16

7.7

7.8

7.9

7.8

19.1

5.1

8.4

5.3

13.5

<2

3

<2

5-May-16

7.6

7.9

8.0

7.9

11.5

7.5

10.6

3.0

9.5

6

7.5

5

7-May-16

7.4

7.9

7.4

7.9

4.9

3.5

23.0

5.7

4.5

2

3.5

4.0

9-May-16

7.5

6.6

8.3

7.8

14.1

8.9

4.7

2.8

12

20.5

2

4.5

11-May-16

7.7

8.1

7.9

6.4

186.0

12.1

10.6

4.5

206.5

6

11.2

3

#12-May-16

--

--

--

--

21.4

4.8

--

--

14.1

3

--

--

13-May-16

7.8

7.9

8.4

6.7

22.5

4.1

2.3

2.8

9.0

<2

<2

<2

17-May-16

8.0

7.8

7.0

8.4

58.6

5.1

4.1

3.6

65.5

<2

4

7.5

#18-May-16

--

--

--

--

21.8

5.7

--

--

14.0

6

--

--

19-May-16

7.8

7.8

  8.2

  7.1

22.9

4.7

5.0

3.3

13.5

4.5

<2

3

21-May-16

8.0

8.1

7.9

7.0

59.2

10.6

99.9

6.0

81.5

8.5

152.0

7

23-May-16

*

*

8.3

7.1

*

*

11.0

4.9

*

*

11.2

<2

#24-May-16

--

--

--

--

*

*

7.2

6.6

*

*

7

8

25-May-16

7.2

7.8

7.9

7.3

24.1

5.4

3.0

2.4

14.1

5

4.5

4

27-May-16

7.3

7.6

8.2

7.0

273.0

6.7

5.8

3.3

189.5

4.5

<2

2

#28-May-16

--

--

--

--

70.7

11.8

--

--

94.0

<2

--

--

#30-May-16

7.4

7.7

--

--

53.3

3.7

--

--

76.0

<2

--

--

31-May-16

7.4

7.7

7.4

6.9

68.1

3.5

4.6

2.9

84.5

<2

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.

*Unsuccessful to undertake the monitoring

 

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

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM3

WM3- Control

WM3

WM3- Control

WM3

WM3- Control

3-May-16

7.6

7.0

11.7

6.0

8.5

8.0

5-May-16

7.1

6.8

23.5

28.5

45.5

70.5

7-May-16

7.5

7.2

7.4

39.1

10.5

103.5

9-May-16

7.2

6.5

20.4

10.2

31.0

26.5

10-May-16

--

--

63.1

45.1

69.0

70.0

11-May-16

6.9

7.0

5.7

3.4

12.1

11.0

12-May-16

--

--

77.8

5.4

74.2

7.0

13-May-16

7.5

5.8

12.8

5.2

12.5

6.0

16-May-16

--

--

13.0

4.4

12.0

3.0

17-May-16

7.2

7.5

3.8

4.9

<2

5.5

19-May-16

8.0

7.5

3.1

13.2

4.0

104.0

21-May-16

7.4

7.5

57.7

28.5

56.0

36.0

23-May-16

7.2

7.1

12.0

13.0

11.5

22.5

24-May-16

--

--

11.4

4.2

12.0

5.0

25-May-16

7.6

7.5

12.4

6.4

12.0

13.5

27-May-16

6.9

7.2

13.2

6.7

18.5

77.0

31-May-16

6.8

6.5

12.2

5.9

12.5

8

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      Breaches of Water Quality Monitoring Criteria in Reporting Period

Location

Dissolved Oxygen

Turbidity

Suspended Solids

Total Exceedance

Action

Limit

Action

Limit

Action

Limit

Action

Limit

WM1

0

0

0

2

0

2

0

4

WM2A

0

0

0

7

0

7

0

14

WM2B

0

0

0

2

0

1

0

3

WM3

0

0

0

4

0

2

0

6

WM4

0

0

0

0

0

0

0

0

No of Exceedance

0

0

0

15

0

12

0

27

 

6.2.3                 In this Reporting Period, a total of twenty-five (27) Limit Level (LL) exceedances, namely fifteen

(15) LL exceedances of turbidity and twelve(12) LL exceedances of Suspended Solids were recorded for the Project and they are summarized in Table 6-5.

 

6.2.4                 NOE was issued to relevant parties upon confirmation of the monitoring result.  The cause of exceedance is summarized in Table 6-6 accordance to investigation findings and the detailed 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

17th, 19th May 2016

WM1

(C5, C6 and SS C505)

NTU & SS

According to the field photos, aaccumulation of rubbish were observed at the bar screen of the box culvert near WM1 on 17 & 19 May 2016. Water flow near WM1 was therefore retarded and turbid water cumulated at WM1. It is considered that the exceedances were unlikely due to the Contract 5, 6 and SSC505.

11th, 17th, 21th, 27th, 28th ,30th, 31th

 May 2016

WM2A

(C6)

NTU and/or SS

According to the site information provided from the CCKJV, construction activities carried out on 11th, 17th, 21th, 27th, 28th, 30th, 31th May 2016 at Bridge D (upstream of WM2A) were mainly piling works. Wastewater treatment facilities including one AquaSed and three series of sedimentation tank have been installed for piling work. 

Ÿ   On 11th May 2016, As reported by CCKJV, a worker incorrectly connected inlet pipe which carried wastewater collected from the site to the tank which received effluent from the AquaSed(SH-15).Then, the wastewater was discharged into the river through the outlet pipe of the tank which received effluent of the AquaSed (SH-15). It is considered that the exceedance was related to the Contract.

Ÿ   On 17th May 2016, it was observed that water at upstream of WM2A was visually clear though some silt was cumulated at the river bed. As reported by CCKJV, there was no discharge of effluent from AquaSed (SH-15) and no discharge of effluent to the open channel on 17 May 2016. And the AquaSed was under maintenance on that day. Also, during joint site weekly inspection on 19 May 2016 with RE, ET, IEC and Contractor, no adverse water impact was observed on upstream of WM2A. Thus, it is considered that the exceedance on WM2A is unlikely related to the construction activities of the Contract.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 21 May 2016. Water flow rate increased under the heavy rain and the sediment at the river bed was stirred up, resulting in turbid water. Thus, it is considered that the exceedance on 21 May 2016 was due to the heavy rain and unlikely due to the construction activities of the Contract.

Ÿ   During joint site inspection with RE, IEC, ET and Contractor on 2 June 2016, it was observed that unknown source of turbid water was seeping out from the river bed at upstream of WM2A continuously, turning the water in the river turbid. In our investigation, it is considered that the exceedances at WM2A on 27th, 28th, 30th, 31th May were related to the unknown source of turbid water from the river bed.

7th , 21th May 2016

WM2B

(C6)

NTU and/or SS

According to the site information as provided by C6, construction activities carried out at North Portal (upstream of WM2B) in the reporting period was included the piling and slope works.  Daily self-monitoring has conducted by the Contractor to ensure effluent is fully compliance with the TM criteria.

Ÿ   On 7th May 2016, it was observed that the water flowing in the channel and the water samples collected at WM2B was visually clear. Besides, no surface runoff was observed. As advised by the Contractor, self-monitoring for the treated water in the wastewater treatment facilities was conducted and the effluent was visually clear on 7 May 2016. During the joint site inspection with ET, RE, IEC and Contractor on 12 May 2016, it was observed that the water in the upper stream of WM2B was visually clear. No adverse water impact was observed. Also, no site surface runoff was observed. It is considered that the exceedance on 7 May 2016 is not related to the construction activities of Contract 6.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 21 May 2016. The flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up during rain, resulting in turbid water in river channel. Apart from the disturbance of cumulated silt at the river bed during rain, it was observed that trails of muddy runoff from the public road surface into the existing channel under the rain. Thus, it is considered that the exceedance on 21 May 2016 is due to the heavy rainfall.

9th, 10th, 12th, 21th May 2016

WM3

(C2 and C6)

NTU and/or SS

Ÿ   According to the site information respectively came from the Contractors of C6, major construction activities carried out on 9th, 10th, 12th, 21th May 2016 at upstream of WM3 was bored pile works.

Ÿ   Contractor has carried out joint site inspection with EPD on 9 May 2016, and the wastewater treatment facility (SH-8) was inspected. As advised by the Contractor, no adverse comment was given by EPD. It was observed that the effluent that discharged in the temporary channel which connected to the discharge nullah and Ng Tung River was visually clear. Besides, the water at the upstream of WM3 where the work area of C6 located was visually clear. Thus, it is considered that the exceedance on 9 May is unlikely due to the construction activities of the Contract 6.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 10 May 2016. The flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up during rain, resulting in turbid water in river channel. It was observed that the water at WM3-C was turbid and the stirred up sediment may follow the flow direction to downstream at WM3 that create a cumulative effect on water turbidity. Thus, it is considered that the exceedance on 10 May 2016 was due to the heavy rainfall.

Ÿ   During joint site inspection with RE, IEC and Contractor on 12 May 2016, the treated effluent discharged into temporary channel which connected to discharge nullah and Ng Tung River was inspected. It was observed that the effluent quality was visually clear. Also, no adverse water impact was observed at the upstream of the WM3 where the work area of C6 located. In our investigation, it is considered that the exceedance on 12 May is unlikely related to the construction activities of Contract 6.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 21 May 2016. The flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up during rain, resulting in turbid water in river channel. Besides, under heavy rain, surface runoff from the nearby soil slopes into the river may make the water become more turbid. Thus, it is considered that the exceedance on 21 May 2016 was related to the heavy rainfall.

Ÿ   According to the site information respectively came from the Contractors of C2, major construction activities carried out on 9th, 10th, 12th, 21th May 2016 at upstream of WM3 was rebar fixing and concreting at admin building for C2.

Ÿ   According to the site photos from monitoring team on 9 May 2016, it was observed that there was no adverse water impact at the discharge nullah outside the site boundary.

Ÿ   During weekly joint site inspection on 13 May 2016 with RE, IEC and Contractor, it was observed that building foundation works was carried out at Admin Building and the site area was mostly hard paved. Temporary drainage system and water treatment system was properly implemented. The discharge nullah outside the site boundary was inspected and no adverse water impact was observed. Thus, it is considered that the exceedances on 9 and 12 May were unlikely related to the construction activities under Contract 2.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 10 May 2016. Water flow rate increased under the heavy rain and the sediment at the river bed was stirred up, resulting in turbid water. Thus, it is considered that the exceedance of turbidity on 10 May 2016 was due to the heavy rain and unlikely due to the construction activities of Contract 2.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 21 May 2016. The flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up during rain, resulting in turbid water in river channel. Besides, under heavy rain, surface runoff from the nearby soil slopes into the river may make the water become more turbid. Thus, it is considered that the exceedance on 21 May 2016 was related to the heavy rainfall.

 

6.2.5                 Five investigation reports for the exceedances which were under review by IEC in April 2016 are completed and cause of water quality exceedances were presented below.

 

Table 6-7      Summary of Water Quality Exceedance which were under review by IEC in April 2016

Date of Exceedance

Location

Exceeded Parameter

Cause of Water Quality Exceedance

20th,21th, 22th April 2016

 

WM3

(C6 & C2)

NTU and/or SS

According to the site information provided from the Contractor of C6 (CCKJV), the main construction activities carried out on 20, 21, 22 April 2016 at upstream of WM3 was bored pile works.

Ÿ   Upon exceedance recorded on 20 April 2016 and during site inspection by RE, ET, IEC and Contractor on 21 April 2016, the effluent of the AquaSed (SH-8) was found to be turbid. As reported by CCKJV, the worker forgot to fill in the flocculent of the AquaSed(SH-8), resulting in turbid effluent. CCKJV had immediately replenished the flocculent and the effluent observed was clear. In our investigation, it is considered that the exceedances on 20, 21 April 2016 were related to the Contract. In order to enhance onsite management, CCKJV is advised to implement daily monitoring record on all AquaSeds under Contract 6. CCKJV has agreed to follow the advice and the preparation is in progress.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 22 April 2016. The flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up during rain, resulting in slightly turbid water in river channel. It is considered that the exceedance on 22 April 2016 was unlikely due to the construction activities of the Contract.

 

According to the site information provided from the Contractor of C2 (DHK), construction activities carried out from 20 to 22 April 2016 at admin building was building foundation works (rebar fixing and concreting) and no discharge was made.

Ÿ   As advised by the Contractor, building foundation works was carried out at Admin Building and the site area was mostly hard paved. Temporary drainage system and water treatment system was properly implemented. From the photos taken on 20 and 21 April 2016, no adverse water impact was observed at the discharge nullah outside the site boundary. Thus, it is considered that the exceedances on 20 and 21 April are unlikely related to the construction activities of C2.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 22 April 2016. During rain, the flow rate of the river increased, sediment and cumulated silt at the river bed was stirred up, resulting in slightly turbid water in river channel on 22 April 2016. It is considered that the exceedance on 22 April is due to the heavy rainfall.

 

11th, 14th, 20th   22th, 23th, 25th, 26th April 2016

WM2B

(C6)

NTU and/or SS

According to the site information as provided by C6, construction activities carried out at North Portal (upstream of WM2B) in the reporting period was included the piling and slope works.  Daily self-monitoring has conducted by the Contractor to ensure effluent is fully compliance with the TM criteria.

Ÿ   According to the site record from the monitoring team on 11 April 2016, it was observed that the water flowing in the channel and the water samples collected at WM2B was visually clear. Since the water sampling was carried out at the bridge over the drainage channel at shallow water with water depth at around 0.02m, the water sample could not avoid inclusion of the loose sediment and debris. It is considered that the exceedance was unlikely related to the construction activities of the Contract.

Ÿ   According to the site record from the monitoring team on 14 April 2016, very shallow water was measured at WM2B and the water depth was around 0.02m. Also, water sampling was conducted under raining. Water flowing in the open channel was slightly turbid due to stir up of sediment and cumulated silt at the river bed. Besides, it was observed that trails of muddy runoff from the public road surface into the existing channel on 14 April 2016. It is considered that the exceedances were likely related to cumulated silt at the river bed and muddy runoff from the public road surface.

Ÿ   According to the site record from the monitoring team on 20 April 2016, very shallow water was measured at WM2B and the water depth was around 0.01-0.02m. It was observed that the water flowing in the channel and the water samples collected at WM2B was visually clear. Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the water sample could not avoid inclusion of the loose sediment and debris. Thus, it is considered that the exceedance was unlikely related to the construction activities of the Contract.

 

According to the site information provided from the CCKJV, construction activities carried out on 22, 23, 25, 26 April 2016 at North Portal (upstream of WM2B) were bored piling and slope work. Also, construction of site access road along with a temporary drain ditch were carried out.

Ÿ   According to the Daily Extract of Meteorological Observations from the Hong Kong Observatory, heavy rainfall was recorded on 22 and 25 April 2016. Along the construction of the site access road and temporary drain ditch, runoff was generated from loose surface under heavy rain. Thus, it is considered that the exceedances were related to runoff from the loose surface.According to the site monitoring figures, there was no exceedances triggered on 27 April after the completion of the ditch. It is considered that the ditch had effectively collected the runoff due to the heavy rain. Also, from the site photos and during joint site inspection with RE, IEC, ET and Contractor on 5 May 2016, no runoff was observed after the completion of the drain ditch.

 

 

 


 

7                             Waste Management

7.1                       General Waste Management

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

 

7.2                       Records of Waste Quantities

7.2.1                 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.

 

7.2.2                 The quantities of waste for disposal in this Reporting Period are summarized in Tables 7-1 and 7-2 and the Monthly Summary Waste Flow Table is shown in Appendix L.  Whenever possible, materials were reused on-site as far as practicable.

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

Type of Waste

Contract 2

Contract 3

Contract 5

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

C&D Materials (Inert)

(in '000m3)

77.5386

--

0.488

--

0

--

51.115

--

0.505

--

0.013

--

129.6596

Reused in this Contract (Inert)

(in '000 m3)

0.1268

--

0.013

--

0

--

 3.229

--

0

--

1.074

--

4.4428

Reused in other Contracts/ Projects (Inert)

(in '000 m3)

38.9050

C6/ NENT# & other projects approved by the ER

0

--

0

--

17.469

C5 & other projects approved by the ER

0

--

0

--

56.374

Disposal as Public Fill (Inert)

(in '000 m3)

38.5068

Tuen Mun 38

0.475

Tuen Mun 38

0

--

30.417

Tuen Mun 38

0.505

Tuen Mun 38

0.013

TKO 137

69.9168

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

 

Table 7-2        Summary of Quantities of C&D Wastes for the Project

Type of Waste

Contract 2

Contract 3

Contract 5

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) #

44.8

-

0

-

0

--

0

--

0

--

1587.5818

Licensed collector

1632.382

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

0.4

-

0

-

0

--

0.221

Licensed collector

0

--

0

--

0.621

Recycled Plastic (¡¥000kg) #

0

--

0

-

0

--

0

--

0

--

0

--

0

Chemical Wastes (¡¥000kg) #

2.728

Licensed collector

0

-

0

--

0

--

0

--

0

--

2.728

General Refuses (¡¥000m3)

0.1246

NENT

0.105

NENT

0.015

NENT

0.079

NENT

0

--

0.156

NENT

0.4796

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


8                             Site Inspection

8.1                       requirements

8.1.1                 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.

 

8.2                       Findings / Deficiencies During the Reporting Month

Contract 2

8.2.1                 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 6, 13, 20, 27 May 2016.  No non-compliance was noted.

 

8.2.2                 The findings / deficiencies of Contract 2 that observed during the weekly site inspection are listed in Table 8-1.

Table 8-1           Site Observations for Contract 2

Date

Findings / Deficiencies

Follow-Up Status

6 May 2016

Ÿ  NRMM label is missing for the truck without TD registration was observed. The contractor should display the label properly before the truck is used. (North Portal)

 

Ÿ  Turbidity water discharged into the water course was observed. The contractor explained that discharge of turbidity water is due to the wrong operating for the de-silting facilities. The contractor was strongly request to provide proper training for the worker to avoid the incident. (Admin Building)

 

Ÿ  The contractor was reminded to provide proper maintenance for the discharge water treatment facilities and make sure all discharge water should comply with the discharge license requirement.

Ÿ  NRMM label is displayed.

 

 

 

 

Ÿ  Trainings was provided and no muddy water discharge.

 

 

 

 

 

Ÿ  Not required for reminder.

 

 

 

 

13 May 2016

Ÿ  Soil and debris cumulated inside the temporary drainage system should be clean to maintain the discharge system in good condition.

Ÿ  Not required for reminder.

 

20 May 2016

Ÿ  No adverse environmental issue was observed.

NA

27 May 2016

Ÿ  No adverse environmental issue was observed.

NA

 

Contract 3

8.2.3                 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 5, 9, 18, 23, 30 May 2016.  No non-compliance was noted.

 

8.2.4                 The findings / deficiencies of Contract 3 that observed during the weekly site inspection are listed in Table 8-2.

Table 8-2           Site Observations for Contract 3

Date

Findings / Deficiencies

Follow-Up Status

5 May 2016

Ÿ  Muddy trail was observed at site exit SA18. The Contractor should ensure no muddy trail present at the site exit and public access road to reduce dust generation.

Ÿ  No muddy trail was observed at site SA18 and regular cleaning was performed.

9 May 2016

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

18 May 2016

Ÿ  Contractor was reminded to remove the stagnant water accumulated in the lifting eyes and to fill the lifting eyes with sand. (Location: FH9)

 

Ÿ  Not required for reminder.

 

23 May 2016

Ÿ   For those places commonly with stagnant water, the Contractor is reminded to remove stagnant water and provide record for mosquito control. (Portal AB8)

 

Ÿ   Garbage bucket should be cleaned up when it is full. Also, the Contractor is reminded to cover it up with tarpaulin. (Portal AB8)

 

Ÿ  Not required for reminder.

 

 

 

Ÿ  Not required for reminder.

 

30 May 2016

Ÿ  Dark smoke emission from generator at Bridge J was observed. The Contractor should carry out maintenance work to avoid air impact.

Ÿ  Maintenance work was carried out and no dark smoke emission from the generator was observed.

 

Contract 5

8.2.5                 In the Reporting Period, joint site inspection for Contract 5 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24, 31 May 2016.  No non-compliance was noted.

 

8.2.6                 The findings / deficiencies of Contract 5 that observed during the weekly site inspection are listed in Table 8-3.

Table 8-3           Site Observations for Contract 5

Date

Findings / Deficiencies

Follow-Up Status

3 May 2016

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

10 May 2016

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

17 May 2016

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

24 May 2016

Ÿ  The Contractor should improve the housekeeping and waste sorting at the site area in LMH Road.

Ÿ  Construction wastes were removed from site and housekeeping was improved.

31 May 2016

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

 

Contract 6

8.2.7                 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 5, 12, 19, 26 May 2016.  No non-compliance was noted.

 

8.2.8                 The findings / deficiencies of Contract 6 that observed during the weekly site inspection are listed in Table 8-4.

Table 8-4           Site Observations for Contract 6

Date

Findings / Deficiencies

Follow-Up Status

5 May 2016

Ÿ  The Contractor was reminded to remove stagnant water on site after rainy days (Especially at Ping Yeung Interchange).

 

Ÿ  NA

 

12 May 2016

Ÿ  The Contractor was reminded to modify the discharge outfall point for treated water at the AquaSed (SH-15); and it was recommended to provide a diagram for wastewater treatment process.

 

Ÿ  It was reminded that stagnant water accumulated in drip tray should be removed as chemical waste especially after rain.

Ÿ  Not required for reminder

 

 

 

Ÿ  Not required for reminder

19 May 2016

Ÿ  Exposed slope was observed at Bridge D site area, the Contractor should cover the slope with tarpaulin to minimize the dust generation.

 

Ÿ  In bridge D, the Contractor should ensure that haul roads are damp and regular water spraying is implemented.

Ÿ  Exposed surface has been covered up with tarpaulin sheet.

Ÿ  Water spraying has been enhanced.

26 May 2016

Ÿ  Dark smoke emission from a power pack in Bridge D was observed, the Contractor should provide plant maintenance for the power pack to prevent smoke emission.

 

Ÿ  Stagnant water accumulated in a drip tray of a power pack in Bridge D was found, stagnant water should be cleaned up as chemical waste and to avoid mosquito breeding.

 

Ÿ  It was reminded that water spraying should be provided for rock breaking activity to minimize dust generation

Ÿ  Exhaust filer of the power pack was replaced and no dark smoke emission was observed.

 

Ÿ  Stagnant water in drip tray was removed.

 

 

 

Ÿ  Not required for reminder.

 

 

Contract SS C505

8.2.9                 In the Reporting Period, joint site inspection for Contract SS C505 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 4, 11, 18, 25 May 2016. No non-compliance was noted.  

 

8.2.10             The findings / deficiencies of Contract SS C505 that observed during the weekly site inspection are listed in Table 8-5.

Table 8-5           Site Observations for Contract SS C505

Date

Findings / Deficiencies

Follow-Up Status

4 May 2016

Ÿ   The Contractor was reminded to remove the stagnant water on site after rainy days.

Ÿ   Not required for reminder.

11 May 2016

Ÿ  Muddy sediment was observed at drainage channel near training center. The Contractor should clear the sediment to ensure the channel function properly.

Ÿ  Chemical container without drip tray was observed. The Contractor should provide drip tray for the container to avoid land contamination.

Ÿ   Muddy sediment was removed from the drainage channel near training center.

Ÿ   The chemical container without drip tray was removed from site.

 

18 May 2016

Ÿ   Water spraying frequency should be increased for the haul road to reduce dust impact.

Ÿ   Proper designated area should be assigned for storage chemic

Ÿ  Not required for reminder.

 

Ÿ  Not required for reminder.

25 May 2016

Ÿ  Stagnant water was observed at Bridge 5. The Contractor should remove the stagnant water to prevent mosquito breeding.

Ÿ   Stagnant water at Bridge 5 was removed.

 

 

Contract 7

8.2.11             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 3, 10, 17, 24, 31 May 2016.  No non-compliance was noted.

 

8.2.12             The findings / deficiencies of Contract 7 that observed during the weekly site inspection are listed in Table 8-6.

Table 8-6           Site Observations for Contract 7

Date

Findings / Deficiencies

Follow-Up Status

3 May 2016

Ÿ  Stagnant water accumulated in drip tray was observed, the Contractor should clean away the stagnant water.

Ÿ  Fallen chemical container without drip tray was found, the Contractor should provide drip tray for all chemical container.

Ÿ  The stagnant water was removed from the drip tray.

Ÿ  The chemical container was removed from site.

 

10 May 2016

Ÿ  No adverse environmental issue was  observed.

NA

17 May 2016

Ÿ  No adverse environmental issue was  observed.

NA

24 May 2016

Ÿ   Smoke emission from an air compressor was observed, the Contractor should provide plant maintenance to avoid smoke emission.

Maintenance of the air compressor was carried out.

31 May 2016

Ÿ   No adverse environmental issue was  observed.

NA

 

8.2.13             Overall, 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.

 

Other Contracts

8.2.14             Since Contract 4 has not yet commenced, no site inspection were performed.


 

9                             Environmental Complaint and Non-Compliance

9.1                       Environmental Complaint, Summons and Prosecution

9.1.1                 In the Reporting Period, no summons and prosecution under the EM&A Programme was lodged for Contracts 2, 3, 5, 6, 7 and Contract SS C505.  However, a total of three (3) documented environmental complaints were received in the reporting month regarding to noise, dust and water issues. All complaints are being investigated. Three (3) documented environmental complaint investigations which were received in April 2016 were completed and the investigation reports were reviewed by IEC. The detail of the complaints and the investigation results are presented below. Two (2) documented environmental complaints received in April 2016 are still under review and the result of the investigation will be presented in the next monthly report.

 

Investigation Result for the Documented Complaints received by CEDD on 22 April 2016

9.1.2                 On 22 April 2016, CEDD received a complaint regarding to the direct discharge of wastewater into the manhole (drainage hole).

9.1.3                 During site inspection with representatives of DSD, CEDD and AECOM on 26 April 2016, it was observed that the sedimentation tank was removed from site

9.1.4                 According to the photo record, there was a sedimentation tank connected with the concerned manhole (drainage hole). As advised by the Contractor of C6 (CCKJV), the sedimentation tank was idled and would only be used as a spare tank for emergency. All wastewater from that site area was stored in temporary pit and diverted to treat in wastewater treatment facilities including sedimentation tank and AquaSed. After that, all treated effluent was diverted to the drainage hole and then the drainage outlet for discharge. Therefore, there is no discharge of wastewater into the drainage hole.

9.1.5                 On 23 May 2016, ET carried out site inspection with the Contractor and reviewed the wastewater treatment method above. One more set of wastewater treatment facilities was inputted. The latest wastewater treatment facilities location were shown in Figure 3. The effluent finally diverted to the discharge outlet then into the river. The water quality at the Ng Tung River was visually clear.

9.1.6                 It is considered that the above complaint is not valid, nevertheless, CCKJV is still reminded to follow the mitigation measures as recommended in the EM&A Manual. The ET will continue inspect the environmental performance of the construction site and ensure all activities comply with the relevant environmental contractual requirement.

 

Investigation Result for the Documented Complaints received by CEDD on 22 April 2016

9.1.7                 On 20 April 2016, CEDD received a complaint from the Sha Tau Kok District Rural Committee expressing their concerns with respect to discharge of suspected untreated muddy water from the construction sites at Wo Keng Shan Road and Sha Tau Kok Road into the existing river channel.  The discharge of muddy water causing water pollution and accumulation of silt and sediment in the river channel which affecting the livelihood of the nearby resident.

9.1.8                 Besides, the Contractor is pumping water from the exiting river channel near Ping Yuen Road for construction purpose without prior notice to villager and discharging suspected untreated muddy water into the river channel.  It seriously affects the villagers especially for those making life on agriculture.  Moreover, the construction causing loss of groundwater source which highly affecting the livelihood of the villagers who making life on farming.

9.1.9                 A joint site inspection amongst the RE, Contractor of C6 (CCKJV), IEC and ET was carried out on 25 April 2016 for the complaint investigation.  The inspected areas covered all complaint locations which included Administrative Building under Contract 2 and Site Office area under Contract 6 in Wo Keng Shan Road as well as the open trench and river channel adjacent to Sha Tau Kok Road.  Moreover, the construction site in Ping Yuen which under Contract 6 and the adjacent Ping Yuen River was also inspected. EPD, CEDD and DSD carried out site inspections on 8, 18, 21, 29 April 2016 and no adverse comment was given.

9.1.10             Wo Keng Shan Road

Complaint 1:  Muddy water discharged to drain pit and existing river channel at Administrative Building

As advised by Contractor of C2 (DHK), the recent construction activities carried out in admin building included building foundation works such as rebar fixing and concreting.  The amount of wastewater being generated from the abovementioned construction activities is limited and discharge would not be made every day.  The main wastewater generated from the site would be runoff from rain and wheel washing bay. According to the ET¡¦s weekly site inspection photos, the water in the concerned drain channel was visually clear and no water impact was observed in April 2016.  As the concerned drain channel and drain pit is not solely for collecting the effluent from the construction site but also the water flowing from upstream, the contaminated water on the drain channel may be flown from upstream.  As advised by DHK, the drain pit connecting the communal drain is cleaned regularly to ensure the nullah is clean.

9.1.11             During site inspection on 25 April 2016, it was observed that the work area is mostly concrete paved to minimize muddy runoff.  Wastewater treatment facilities including sump pit and series of sedimentation tank and WetSep was implemented and all wastewater was passing through the wastewater treatment facilities before discharge. The treated effluent was clear. The Contractor has conducted daily checking of effluent to ensure the quality of the effluent before discharge. In our investigation, it is considered that this complaint is unlikely related to the Contract.

9.1.12      Complaint 2: Muddy water discharge from Site Office Area to existing river channel

There is no construction activities carried out at Site Office Area but it was observed that vehicles with mud on wheels getting in and out of the sites frequently.  As normal site practice, the Contractor would carry out daily clean up to remove the loose materials and mud on road surface within the Site Office area.  During our inspection on 25 April 2016, the water of the river channel outside Site Office area was visually clear.

9.1.13             For the construction site under Contract 6 behind the Site Office area, the recent construction activities carried out was bored piling.  As water mitigation measures, CCKJV has been set up a temporary drainage channel to divert wastewater from bored pile work and wheel washing bay to the wastewater treatment facilities and they are under normal operation. The effluent from wastewater treatment facilities was mainly recirculated in the wheel washing basin and bored pile work and the excess water would be discharged to the nullah which connected to Ng Tung River.  CCKJV would check the performance of discharge water every day to ensure it complied with the relevant standard. According to the daily monitoring records from CCKJV, the treated effluent was clear on 5, 6, 7, 11, 12 April 2016.

9.1.14             During the inspection on 25 April 2016 and ET¡¦s weekly site inspection photos, ET has inspected the treated effluent discharged into nullah which connected to Ng Tung River, though some silt cumulated at nullah bed was observed, the water flowing in the nullah was visually clear. In our investigation, it is considered that this complaint is unlikely related to the Contract.

9.1.15             Complaint 3: Contaminated river channel with muddy water from the  open trench of Sha Tau Kok Road

According to the complaint photo, the suspected contaminated river channel with muddy water was connected to Sha Tau Kok Road which collecting all the surface runoff from Sha Tau Kok Road through an open trench.  As regular public road cleaning is providing on Sha Tau Kok Road, runoff from the public road into the gully may occur. Silt and sediment cumulated on the open trench may make the water in river turbid especially under raining.

9.1.16             During the inspection on 25 April 2016, no muddy was observed at the river channel and the silt and sediment at the open trench was clear. In our investigation, it is considered that this complaint is unlikely related to the Contract.

9.1.17             Ping Yuen

As advised by CCKJV, the recent construction activities carried out at Ping Yuen was mainly bored piling.  The wastewater generated from piling was recirculated and discharge could be made when water overflow from the AquaSed. As recently reported by CCKJV, since too much silt accumulated inside the sedimentation tank, the quality of effluent was not desirable and some turbid effluent was discharged into Ping Yuen River. CCKJV has been increased the desilting frequency of the AquaSed and sedimentation tanks to 3 times per week and adjusted the chemical dosage for better treatment result.

9.1.18             To minimize the runoff flowing out of the site, concrete block and sand bag as a temporary bund was set up near the piling works area which besides Ping Yuen River of Bridge D. CCKJV advised that the construction of concrete bund will be continuously constructed along the piling area.

9.1.19             During the site inspection on 25 April 2016, it was observed that the water quality near the site area of Ping Yuen River was turbid even though no discharge was made.  Inspection was carried out at upstream of the river and turbid water was observed but the source was unknown.  It is considered that the quality of water in Ping Yuen River is not only affected by the construction activities but also the external factor such as rainfall and possible domestic discharge from the villager. Also, it was observed that clean runoff water from the nearby slopes which are out of the site area was collected by the drainage pipes and diverted to the river channel for discharge. In our investigation, this complaint is unlikely related to the Contract.  And CCKJV is advised to remove all idled drainage pipes.

9.1.20             All of the above complaints are unlikely related to the Contract. Nevertheless, CCKJV is still reminded to follow the mitigation measures as recommended in the EM&A Manual as far as practicable to minimize the impact and nuisance to the public. Mitigation measures such as carrying out regular desilting of AquaSed and sedimentation tanks, applying proper dosage of chemical for wastewater treatment should be maintained. The ET will continue inspect the environmental performance of the construction site and ensure all activities comply with the relevant environmental contractual requirement.

 

Investigation Result for the Documented Complaints received by CEDD on 22 April 2016

 

9.1.21             On 22 April 2016, CEDD received a complaint from the Sha Tau Kok District Rural Committee expressing their concerns with respect to pumping water from the exiting river channel near Ping Yuen Road for construction purpose without prior notice to villager and discharging suspected untreated muddy water into the river channel.  It seriously affects the villagers especially for those making life on agriculture.  Moreover, the construction causing loss of groundwater source which highly affecting the livelihood of the villagers who making life on farming.

9.1.22             A joint site inspection amongst the RE, Contractor of C6 (CCKJV), IEC and ET was carried out on 25 April 2016 for the complaint investigation.  The inspected areas covered all complaint locations which included the construction site in Ping Yuen which under Contract 6 and the adjacent Ping Yuen River. EPD, CEDD and DSD has carried out site inspection on 8, 18 and 29 April 2016 and no adverse comment was given.

9.1.23             As advised by CCKJV, the recent construction activities carried out at Ping Yuen was mainly bored piling. Water was extracted from the river channel for dust mitigation control measures. The wastewater generated from piling was recirculated and discharge could be made when water overflow from the AquaSed. As recently reported by CCKJV, since too much silt accumulated inside the sedimentation tank, the quality of effluent was not desirable and some turbid effluent was discharged into Ping Yuen River. CCKJV has been increased the desilting frequency of the AquaSed and sedimentation tanks to 3 times per week and adjusted the chemical dosage for better treatment result.

9.1.24             To minimize the runoff flowing out of the site, concrete block and sand bag as a temporary bund was set up near the piling works area which besides Ping Yuen River of Bridge D. CCKJV advised that the construction of concrete bund will be continuously constructed along the piling area.

9.1.25             During the site inspection on 25 April 2016, it was observed that the water quality near the site area of Ping Yuen was turbid even though no discharge was made.  Inspection was carried out at upstream of the river and turbid water was observed but the source was unknown.  It is considered that the quality of water in Ping Yuen River is not only affected by the construction activities but also the external factor such as rainfall and possible domestic discharge from the villager. Also, it was observed that clean runoff water from the nearby slopes which are out of the site area was collected by the drainage pipes and diverted to the river channel for discharge. CCKJV is advised to remove all idled drainage pipes.

9.1.26             In our investigation, it is considered that the complaint is unlikely due to the Contract. However, CCKJV is still reminded to follow the mitigation measures as recommended in the EM&A Manual as far as practicable to minimize the impact and nuisance to the public. Mitigation measures such as carrying out regular desilting of AquaSed and sedimentation tanks should be implemented. The ET will continue inspect the environmental performance of the construction site and ensure all activities comply with the relevant environmental contractual requirement.

 

Investigation Result for the Documented Complaints received by 1823 on 28 April 2016

 

9.1.27             A complaint was received on 28 April 2016 from 1823 regarding to the suspected muddy water discharged from the construction sites under Contract 6 affected the growth of crops. This complaint is under review and the result will be presented in the next monthly report.

 

Investigation Result for the Documented Complaints received by 1823 on 21 April 2016

 

9.1.28             A complaint was received from 1823 on 21 April 2016 and passed to CEDD and EPD. There are two concerns. Firstly, it is suspected that dump trucks were not washed in wheel washing facilities before leaving the site and the site was not carried out water spraying. Hence, these suspected concerns lead to dust nuisance to the nearby farmlands. Secondly, it is suspected that the Contractor discharged wastewater directly into the storm drain and Ng Tung River, affecting the residents and farmers of Tai Tong Wu. This investigation report is still under review and the result will be presented in the next monthly report.

 

Investigation Result for the Documented Complaints received by 1823 on 28 May 2016

 

9.1.29             A complaint was received from 1823 on 28 May 2016, regarding to the mud found on Sha Tau Kok, Wo Keng Shan Road was suspected from the construction site. This investigation report is still under review and the result will be presented in the next monthly report.

 

Investigation Result for the Documented Complaints received by CEDD on 26 May 2016

 

9.1.30             A complaint was received from CEDD on 26 May 2016, regarding to the noise nuisance from the construction site of Contract 2 (North Portal). Loi Tung Villagers complained that noise was made at midnight from the construction site. Also, early in the morning at 5, dump truck started working in the construction site, making noise thus affecting the daily lives of villagers. This complaint is still under investigation the result will be presented in the next monthly report

 

Investigation Result for the Documented Complaints received by 1823 on 31 May 2016

 

9.1.31             A complaint was received from 1823 on 31 May 2016, regarding to water spraying over dump trucks was suspected to be carried out outside site area. The above action resulted in muddy water on Sha Tau Kok Road Wo Hang Ma Mei Section and affected other road users. This complaint is still under review and the result will be presented in the next monthly report.

 

9.1.32             The statistical summary table of environmental complaint is presented in Tables 9-1, 9-2 and 9-3.

Table 9-1           Statistical Summary of Environmental Complaints

Reporting Period

Contract No

Environmental Complaint Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 April 2016

Contract 2

0

14

Ÿ  (6) Water Quality

Ÿ  (6) Dust

Ÿ  (2) Noise

06 Nov 2013 ¡V

30 April 2016

Contract 3

0

4

Ÿ  (1) Dust

Ÿ  (2) Water quality

Ÿ  (1) Noise

16 Aug 2013 ¡V

30 April 2016

Contract 5

0

2

Ÿ  (2) Dust

16 Aug 2013 ¡V

30 April 2016

Contract 6

0

13

Ÿ  (11) Water Quality

Ÿ  (2) Dust

15 Feb 2016 ¡V

30 April 2016

Contract 7

0

0

N/A

16 Aug 2013 ¡V

30 April 2016

SS C505

0

0

N/A

1 ¡V 31 May 2016

Contract 2

3

17

Ÿ  (7)Water Quality

Ÿ  (7) Dust

Ÿ  (3) Noise

Contract 3

0

4

Ÿ  (1) Dust

Ÿ  (2) Water quality

Ÿ  (1) Noise

Contract 5

0

2

Ÿ  (2) Dust

Contract 6

1

14

Ÿ  (11) Water Quality

Ÿ  (3) Dust

Contract 7

0

0

N/A

SS C505

0

0

N/A

 

Table 9-2           Statistical Summary of Environmental Summons

Reporting Period

Contract No

Environmental Summons Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 April 2016

Contract 2

0

0

NA

06 Nov 2013 ¡V

30 April 2016

Contract 3

0

0

NA

16 Aug 2013 ¡V

30 April 2016

Contract 5

0

0

NA

16 Aug 2013 ¡V

30 April 2016

Contract 6

0

0

NA

15 Feb 2016 ¡V

30 April 2016

Contract 7

0

0

NA

16 Aug 2013 ¡V

30 April 2016

SS C505

0

0

NA

1 ¡V 31 May 2016

Contract 2

0

0

NA

Contract 3

0

0

NA

Contract 5

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 

 

Table 9-3           Statistical Summary of Environmental Prosecution

Reporting Period

Contract No

Environmental Prosecution Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

30 April 2016

Contract 2

0

0

NA

06 Nov 2013 ¡V

30 April 2016

Contract 3

0

0

NA

16 Aug 2013 ¡V

30 April 2016

Contract 5

0

0

NA

16 Aug 2013 ¡V

30 April 2016

Contract 6

0

0

NA

15 Feb 2016 ¡V

30 April 2016

Contract 7

0

0

NA

16 Aug 2013 ¡V

30 April 2016

SS C505

0

0

NA

1 ¡V 31 May 2016

Contract 2

0

0

NA

Contract 3

0

0

NA

Contract 5

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 

The Other Contracts

9.1.33             Since the construction works at the Contract 4 has not yet commenced, no environmental complaint, summons and prosecution under the EM&A Programme are registered in the Reporting Period.

 


10                         Implementation Status of Mitigation Measures

10.1                   General Requirements

10.1.1             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.

 

10.1.2             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, 5, 6, 7 and Contract SS C505 in this Reporting Period are summarized in Table 10-1.  

 

Table 10-1         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.

 

10.2                   Tentative Construction Activities in the Coming Month

10.2.1             Construction activities as undertaken in the coming month for the Project lists below:

Contract 2

Mid-Vent Portal

Ÿ    Tube excavation (NB+SB)

Ÿ    Adit invert slab

Ÿ    Ventilation building superstructure

North Portal

Ÿ    Retaining walls and slope stabilization

Ÿ    Northbound top heading excavation and tunnel enlargement

Ÿ    Retaining walls and slope stabilization

South Portal

Ÿ    Southbound and Northbound D&B excavation

Ÿ    Building works superstructure

Admin Building

Ÿ    Building works foundation & superstructure

 

Contract 3

Ÿ   Cable detection and trial trenches

Ÿ   Filling works at Tong Hang East

Ÿ   Storm Drains Laying

Ÿ   Noise barrier construction

Ÿ   Pier / Pier Table construction

Ÿ   Pile cap works

Ÿ   Portal beam construction

Ÿ   Pre-drilling works and piling works for viaduct

Ÿ   Pre-drilling works for noise barrier and piling works for noise barrier

Ÿ   Retaining Wall construction

Ÿ   Road works

Ÿ   Sewer works

Ÿ   Slope works

Ÿ   Socket H-pile installation

Ÿ   Tree felling works

Ÿ   Utilities duct laying

Ÿ   Viaduct segment erection

Ÿ   Water works

Contract 5

Ÿ   Testing and commissioning of rising main (VO061) at LMH road

Ÿ   Bituminous laying at existing LMH road.

Ÿ   Brick laying at footpath of LMH road

Ÿ   Road works (kerb and bituminous laying) at existing LMH road

Ÿ   Irrigation system at existing LMH Road

Ÿ   Installation of underground utilities at existing LMH road

Ÿ   Planting works at proposed & existing LMH road

Contract 6

Ÿ   Site Clearance

Ÿ   Slope Works

Ÿ   Site Accesses Construction

Ÿ   Ground Investigation Works

Ÿ   Soil Nail

Ÿ   Bored Piling

Ÿ   Pile Cap Construction

Ÿ   Tunnel Excavation

Ÿ   Sewage Treatment Plant Construction

Contract 7

Ÿ   Ground Investigation Works for Bridge A and E

Ÿ   Piling Works for Bridge A to E

Ÿ   Pile cap construction for Bridge B, C, D

Contract SS C505

Ÿ   General Site Setup

Ÿ   CLP temporally sub-station works

Ÿ   Building no. 5 and 9 construction

Ÿ   Tower Crane TC10 Construction

Ÿ   H-pile works and load test

Ÿ   Disassembly of crawler crane

Ÿ   Grouting and full core to completed bored piles

Ÿ   Underground drainage works

Ÿ   Erection of Welfare Shelter

Ÿ   Prototype ¡§A¡¨ Construction works

Ÿ   Prototype ¡§B¡¨ footing construction

Ÿ   Formwork and falsework for PTB¡¦s slap construction

Ÿ   Pile cap construction for PTB

Ÿ   Tower Crane Construction

Ÿ   Pile Cap construction for building number 4, 6 and 7

Ÿ   Bridge construction works including construction of bridge column, retaining wall, pile cap

 

10.3                   Key Issues for the Coming Month

10.3.1             Key issues to be considered in the coming month for Contracts 2, 3, 5, 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

 

10.3.2             Contract 4 has not yet commenced and no environmental issue is presented.


11                         Conclusions and Recommendations

11.1                   Conclusions

11.1.1             This is the 34th monthly EM&A report presenting the monitoring results and inspection findings for the Reporting Period from 1 to 31 May 2016.

 

11.1.2             For air quality monitoring, no 1-hour and 24-hour TSP monitoring results triggered the Action or Limit Levels were recorded. No NOEs or the associated corrective actions were therefore issued.

 

11.1.3             No noise complaint (which is an Action Level exceedance) was received and no construction noise measurement results that exceeded the Limit Level were recorded in the Reporting Period. No NOEs or the associated corrective actions were therefore issued.

 

11.1.4             For water quality monitoring, a total of twenty-seven (27) Action/ Limit Levels (AL/LL) exceedances, namely fifteen (15) LL exceedances of turbidity and twelve (12) AL/LL exceedances of Suspended Solids. The investigations for the cause of exceedances have been conducted by the ET and the associated investigation reports were submitted to relevant parties

 

11.1.5             No environmental summons or successful prosecutions were recorded in the Reporting Period. 

 

11.1.6             In this Reporting Period, a total three (3) documented environmental complaint was received in the reporting month regarding to water, dust and noise issue. Upon receipt of the complaints, RE, IEC and ET with the relevant Contractors has immediately undertaken investigation.  In the Reporting Period, all complaints of investigation are not yet completed and ongoing.

 

11.1.7             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, 5, 6, 7 and SS C505 in accordance with the EM&A Manual stipulation.  No non-compliance observed during the site inspection. 

 

11.2                   Recommendations

11.2.1             As wet season has come, 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 or public area would be the key issue.  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.  Moreover, 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.

 

11.2.2             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.

 

11.2.3             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.

 

11.2.4             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.