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.51) – October 2017

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

13 November 2017

TCS00694/13/600/R1307v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

9 November 2017

First Submission

2

13 November 2017

Amended according to the IEC’s comments on 10 November 2017

 

 

 

 

 

 

 

 

 

 

executive summary

ES01            This is the 51st monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 October 2017 (hereinafter ‘the Reporting Period’).

 

Environmental Monitoring and Audit Activities

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

 

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

 

Environmental Aspect

Environmental Monitoring Parameters / Inspection

Reporting Period

Number of Monitoring Locations to undertake

Total Occasions 

Air Quality

1-hour TSP

9

135

24-hour TSP

9

45

Construction Noise

Leq(30min) Daytime

10

45

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

13 Scheduled & 1 extra

WM2A(a) & WM2A-Cx

13 Scheduled & 3 extra

WM2B & WM2B-C

(*) 13 Scheduled

WM3x &WM3-C

13 Scheduled & 0 extra

WM4, WM4-CA &WM4-CB

13 Scheduled & 2 extra

Ecology

Woodland compensation

i)     General Health condition of planted species

ii)   Survival of planted species

9 Quadrats

0

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

4

Contract 4

4

Contract 6

4

Contract 7

4

Contract SS C505 (#)

4

Note: Extra monitoring day was due to measurement results exceedance

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

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

 

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no air quality and construction noise exceedance and valid noise complaint were recorded.  For water quality monitoring, a total of eleven (11) Action level/ Limit Level exceedances were recorded under the Project.  The summary of exceedance in the Reporting Period is shown below.

 

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation Result

Project related exceedance

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

--

24-hour TSP

0

0

0

--

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

--

Water Quality

DO

0

0

0

-

--

--

Turbidity

1

4

5

-  All exceedances were non-project related. 

0

The Contractors were reminded to implement water quality mitigation measure.

SS

0

6

6

0

 

Environmental Complaint

ES05            In this Reporting Period, one (1) documented environmental complaint was received under the EM&A Programme.  Subsequent joint site inspection was carried out for investigation of the complaint and the investigation report revealed that the complaint was not valid to the project.  

Notification of Summons and Successful Prosecutions

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

Reporting Change

ES07            No reporting changes were made in the Reporting Period.

 

Site Inspection

ES08            In this Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 2 has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 20 and 27 October 2017.  No non-compliance was noted during the site inspection. 

 

ES09            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 3 has been carried out by the RE, IEC, ET and the Contractor on 3, 12, 18 and 26 October 2017.  No non-compliance was noted during the site inspection. 

 

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 4 has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 16 and 27 October 2017.  No non-compliance was noted.   

 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, IEC, ET and the Contractor on 3, 12, 19 and 26 October 2017.  No non-compliance was noted during the site inspection. 

 

ES12            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 6, 13, 17 and 27 October 2017.  No non-compliance was noted during the site inspection. 

 

ES13            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, ET and the Contractor on 4, 11, 18 and 25 October 2017 in which IEC joined the site inspection on 25 October 2017.  No non-compliance was noted during the site inspection. 

 

 

Future Key Issues

ES14            During dry season, special attention should be paid on the potential construction dust impact since most of the construction sites are adjacent to villages. The Contractor should fully implement the construction dust mitigation measures as appropriately.

 

ES15            Preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.

 

ES16            In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

ES17            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.

 

 

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  13

3.1            General  13

3.2            Monitoring Parameters  13

3.3            Monitoring Locations  13

3.4            Monitoring Frequency and Period   15

3.5            Monitoring Equipment  16

3.6            Monitoring Methodology   18

3.7            Equipment Calibration   20

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

3.9            Data Management and Data QA/QC Control  21

4     Air Quality Monitoring   23

4.1            General  23

4.2            Air Quality Monitoring Results  23

5     Construction Noise Monitoring   26

5.1            General  26

5.2            Noise Monitoring Results (normal daytime) 26

6     Water Quality Monitoring   27

6.1            General  27

6.2            Results of Water Quality Monitoring   27

7     Ecology Monitoring   31

7.1            General  31

8     Waste Management   32

8.1            General Waste Management  32

8.2            Records of Waste Quantities  32

9     Site Inspection   33

9.1            requirements  33

9.2            Findings / Deficiencies During the Reporting Month   33

10   Environmental Complaint and Non-Compliance   37

10.1          Environmental Complaint, Summons and Prosecution   37

11   Implementation Status of Mitigation Measures  40

11.1          General Requirements  40

11.2          Tentative Construction Activities in the Coming Month   40

11.3          Key Issues for the Coming Month   42

12   Conclusions and Recommendations  43

12.1          Conclusions  43

12.2          Recommendations  43

 

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 – AM1a

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

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

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

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

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

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

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

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

Table 5-1        Summary of Construction Noise Monitoring Results

Table 5-2        Summary of Construction Noise Monitoring Results

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

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

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

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

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

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

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

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

Table 9-1        Site Observations for Contract 2

Table 9-2        Site Observations for Contract 3

Table 9-3        Site Observations for Contract 4

Table 9-4        Site Observations for Contract 5

Table 9-5        Site Observations for Contract 6

Table 9-6        Site Observations for Contract SS C505

Table 10-1      Statistical Summary of Environmental Complaints

Table 10-2      Statistical Summary of Environmental Summons

Table 10-3      Statistical Summary of Environmental Prosecution

Table 11-1      Environmental Mitigation Measures

 

 

 

 

List of Appendices

Appendix A    Layout Plan of the Project

Appendix B    Organization Chart

Appendix C    3-month rolling construction program

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

Appendix E    Monitoring Locations for Impact Monitoring

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

Appendix G    Event and Action Plan

Appendix H    Impact Monitoring Schedule

Appendix I     Database of Monitoring Result

Appendix J     Graphical Plots for Monitoring Result

Appendix K    Meteorological Data

Appendix L    Waste Flow Table

Appendix M   Implementation Schedule for Environmental Mitigation Measures

Appendix N    Investigation Report for Exceedance

Appendix O    Investigation Report for Complaint

 

 

 

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/D granted on 20 January 2017.

 

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

 

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

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

2)             Ping Yeung to Wo Keng Shan – 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 – 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 – 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 – 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 – 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 51st monthly EM&A report presenting the monitoring results and inspection findings for reporting period from 1 to 31 October 2017.

 

1.2              Report Structure

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

Section 1         Introduction

Section 2         Project Organization and Construction Progress

Section 3         Summary of Impact Monitoring Requirements

Section 4         Air Quality Monitoring

Section 5         Construction Noise Monitoring

Section 6         Water Quality Monitoring

Section 7         Ecology Monitoring

Section 8         Waste Management

Section 9         Site Inspections

Section 10       Environmental Complaints and Non-Compliance

Section 11       Implementation Status of Mitigation Measures

Section 12       Conclusions and Recommendations

 

 

 

2                    Project Organization and Construction progress

2.1              Construction Contract Packaging

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

·              Contract 2 (CV/2012/08)

·              Contract 3 (CV/2012/09)

·              Contract 4 (NE/2014/02)

·              Contract 5 (CV/2013/03)

·              Contract 6 (CV/2013/08)

·              Contract 7 (NE/2014/03)

·              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:

·                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;

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

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

·                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;

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

·                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:

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

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

·                widening of the existing Fanling Highway (HyD’s entrustment works);

·                demolishing existing Kiu Tau vehicular bridge and Kiu Tau footbridge and reconstruction of the existing Kiu Tau Footbridge (HyD’s entrustment works); and

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

 

Contract 4 (NE/2014/02)

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

·                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:

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

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

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

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

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

·                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) – 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) – 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:

·           Monitor the Contractors’ compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and their effectiveness

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

·           Facilitate ET’s implementation of the EM&A programme

·           Participate in joint site inspection by the ET and IEC

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

·           Adhere to the procedures for carrying out complaint investigation

·           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:

·           Comply with the relevant contract conditions and specifications on environmental protection

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

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

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

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

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

·           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:

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

·           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

·           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

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

·           Audit environmental conditions on site

·           Report on the environmental monitoring and audit results to EPD, the ER, the Architect, the lEC and Contractor or their delegated representatives

·           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

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

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

·           Adhere to the procedures for carrying out complaint investigation

·           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:

·           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

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

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

·           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

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

·           Check compliance with the procedures for carrying out complaint investigation

·           Check the effectiveness of corrective measures

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

·           Check that the mitigation measures are effectively implemented

·           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

·           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

·           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 – Tai Hang to Wo Hop Shek Interchange – Contract No. HY/2012/06;

                                (c)            Construction of BCP facilities in Shenzhen.

 

2.4              Construction Progress

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

 

 

Contract 2 (CV/2012/08)

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

Mid-Vent Portal

Ÿ    Cavern internal structure

Ÿ    Stud tunnel post-excavation and earthworks

Ÿ    Structure connecting adit and ventilation building and backfilling

Ÿ    Ventilation building superstructure

Ÿ    Ventilation building internal structure

North Portal

Ÿ    Southbound tunnel waterproofing and lining

Ÿ    Southbound tunnel bench enlargement

Ÿ    Southbound tunnel internal structure, backfilling and cross passage

Ÿ    Tunnel Boring Machine (TBM) North drive excavation

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

Ÿ    North ventilation building structure

Ÿ    Construction of retaining wall

Ÿ    Mucking out from tunnels

Ÿ    D1500 drainage pipe jacking

South Portal

Ÿ    Post-excavation tunnel activities

Ÿ    South ventilation building superstructure and internal structure

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

Ÿ    Construction of retaining wall

Ÿ    Mucking out from tunnels

Admin Building

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

 

Contract 3 (CV/2012/09)

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

Ÿ   Cable detection and Trial Trenches

Ÿ   Remaining works on New Kiu Tau Footbridge

Ÿ   Noise barrier construction

Ÿ   Roadworks

Ÿ   Viaduct Segment Erection

Ÿ   Water Main Laying

Ÿ   Installation of Noise Barrier Steel Column & Panel

Ÿ   Parapet installation on bridge deck

Ÿ   Drainage Work

Ÿ   Mini-pile Installation

Ÿ   Construction of profile barrier & Planter wall on Bridge deck

Ÿ   Stressing of External Tendon

Ÿ   Construction of Retaining Wall behind Abutment

 

Contract 4 (NE/2014/02)

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

Ÿ   System design

Ÿ   E&M installation at Admin Building

 

Contract 5 (CV/2013/03)

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

 

Contract 6 (CV/2013/08)

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

Ÿ   Bridge Segment Erection

Ÿ   Bridge Installation Works

Ÿ   Tunnel Works

Ÿ   Sewage Treatment Plant Construction

Ÿ   Tunnel Ventilation Building Construction

Ÿ   Slip Road/ At-grade Road/ Periphery Road Construction

 

Contract 7 (NE/2014/03)

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

Ÿ   Column construction at Bridges A and E

Ÿ   Deck construction at Bridge B and D

Ÿ   Installation of Façade at Bridge C

Ÿ   Parapet Wall construction at Bridge C

 

Contract SS C505

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

Ÿ   Building no. 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 18, 41 and 43 construction

Ÿ   Tower crane operation

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

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

Ÿ   Formwork and falsework for PTB’s slab construction and Bridges Decks

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

Ÿ   Construction PTB non-structural wall, Late Cast Strip, Stairs and Lift Shaft

Ÿ   Steel beam works for maintenance platform for PTB

Ÿ   PTB backfilling works

Ÿ   Elevated Walkway E1, E2, E3 and E4 construction

Ÿ   Bridge deck construction for Bridges 1 - 5

 

2.5              Summary of Environmental Submissions

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

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

Ÿ   Landscape Plan

Ÿ   Topsoil Management Plan

Ÿ   Environmental Monitoring and Audit Programme

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

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

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

Ÿ   Vegetation Survey Report

Ÿ   Woodland Compensation Plan

Ÿ   Habitat Creation Management Plan

Ÿ   Wetland Compensation Plan

 

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

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

Item

Description

License/Permit Status

Ref. no.

Effective Date

Expiry Date

Contract 2

1

Air pollution Control (Construction Dust) Regulation

Ref No.: 368864

31 Dec 2013

Till Contract ends

2

Chemical Waste Producer Registration

North Portal

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

25 Mar 2014

Till Contract ends

Mid-Vent Portal

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

25 Mar 2014

Till Contract ends

South Portal

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

9 Apr 2014

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.WT00018374-2014

8 Oct 2014

30 Sep 2019

No.: W5/1I389

28 Mar 2014

31 Mar 2019

No. WT00023063-2015

18 Dec 2015

31 Mar 2019

No.: W5/1I392

28 Mar 2014

31 Mar 2019

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7019105

8 Jan 2014

Till Contract ends

5

Construction Noise Permit

GW-RN0288-17

26-Apr-2017

20-Oct-2017

GW-RN0291-17

26-Apr-2017

20-Oct-2017

GW-RN0318-17

09-May-2017

27-Oct-2017

GW-RN0484-17

30-Jul-2017

20-Jan-2018

GW-RN0515-17

10-Aug-2017

01-Feb-2018

GW-RN0519-17

10-Aug-2017

01-Feb-2018

GW-RN0601-17

27-Sep-2017

21-Mar-2018

GW-RN0604-17

20-Sep-2017

16-Mar-2018

GW-RN0605-17

27-Sep-2017

21-Mar-2018

GW-RN0608-17

01-Oct-2017

31-Mar-2018

GW-RN0673-17

28-Oct-2017

27-Apr-2018

6

Specified Process License (Mortar Plant Operation)

L-3-251(1)

12 Apr 2016

11 Apr 2021

Contract 3

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 362101

17 Jul 2013

Till Contract ends

2

Chemical Waste Producer Registration

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

 

7 Oct 2013

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.:WT00016832 – 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-RN0235-17

11 Apr 2017

7 Oct 2017

GW-RN0303-17

11 May 2017

10 Nov 2017

GW-RN0342-17

28 May 2017

20 Nov 2017

GW-RN0376-17

22 Jun 2017

21 Dec 2017

GW-RN0417-17

27 Jun 2017

16 Dec 2017

GW-RN0458-17

16 Jul 2017

18 Dec 2017

GW-RN0477-17

28 Jul 2017

5 Jan 2018

GW-RN0500-17

29 Aug 2017

24 Feb 2018

GW-RN0501-17

25 Aug 2017

24 Feb 2018

GW-RN0508-17

16 Aug 2017

15 Feb 2018

GW-RN0510-17

16 Aug 2017

18 Nov 2018

GW-RN0549-17

6 Sep 2017

5 Mar 2018

GW-RN0564-17

1 Oct 2017

31 Mar 2018

GW-RN0567-17

10 Sep 2017

21 Feb 2018

GW-RN0571-17

30 Sep 2017

29 Mar 2018

GW-RN0669-17

20 Oct 2017

25 Oct 2018

Contract 5

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 359338

 

13 May 2013

Till the end of Contract

2

Chemical Waste Producer Registration

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

8 Jun 2013

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: W5/1G44/1

8 Jun 13

30 Jun 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017351

29 Apr 13

Till the end of Contract

Contract 6

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390614

29 Jun 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

31 Aug 2015

Till the end of Contract

3

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022707

9 Jul 2015

Till the end of Contract

4

Water Pollution Control Ordinance - Discharge License

No.:WT00024574-2016

31 May 2016

31 May 2021

No.:WT00024576-2016

31 May 2016

31 May 2021

No.:WT00024742-2016

14 June 2016

30 June 2021

No.:WT00024746-2016

14 June 2016

30 June 2021

5

Construction Noise Permit

GW-RW0428-17

28 Aug 2017

27 Feb 2018

GW-RW0542-17

21 Aug 2017

20 Jan 2018

GW-RW0578-17

11 Sep 2017

8 Dec 2017

GW-RW0598-17

18 Sep 2017

17 Mar 2018

GW-RW0684-17

30 Oct 2017

29 Apr 2018

Contract SS C505

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390974

13 Jul 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

16 Sep 2015

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024865-2016

8 Jul 2016

30 Nov 2020

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022831

23 Jul 2015

Till the end of Contract

5

Construction Noise Permit

GW-RN0355-17

30 May 2017

25 Nov 2017

GW-RN0499-17

7 Aug 2017

6 Oct 2017

GW-RN0624-17

6 Oct 2017

5 Apr 2018

Contract 7

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 397015

21 Dec 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

24 Mar 2016

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024422-2016

10 May 2016

31 May 2021

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024129

21 Jan 2016

Till the end of Contract

5

Construction Noise Permit

GW-RN0321-17

10 May 2017

4 Nov 2017

                                  Contract 4

1

Air pollution Control (Construction Dust) Regulation

Ref. No. 405353

22 July 2016

Till the end of Contract

2

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024973

13 May 2016

Till the end of Contract

3                    Summary of Impact Monitoring Requirements

3.1              General

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

 

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

 

3.2              Monitoring Parameters

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

•                     Air quality;

•                     Construction noise; and

•                     Water quality

 

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

Table 3-1         Summary of EM&A Requirements

Environmental Issue

Parameters

Air Quality

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

Ÿ  24-hour TSP by High Volume Air Sampler.

Noise

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

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

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

Water Quality

In-situ Measurements

Ÿ  Dissolved Oxygen Concentration (mg/L);

Ÿ  Dissolved Oxygen Saturation (% );

Ÿ  Turbidity (NTU);

Ÿ  pH unit;

Ÿ  Water depth (m); and

Ÿ  Temperature (℃).

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 latest alternative monitoring locations has been updated in the revised EM&A Programme (Rev.7) which approved by EPD on 7 April 2017.  Table 3-2, Table 3-3 and Table 3-4 are respectively listed the air quality, construction noise and water quality monitoring locations for the Project and a map showing these monitoring stations is presented in Appendix E.

Table 3-2        Impact Monitoring Stations - Air Quality

Station ID

Description

Works Area

Related to the Work Contract

AM1b^

Open area at Tsung Yuen Ha Village

BCP

SS C505

Contract 7

AM2

Village House near Lin Ma Hang Road

LMH to Frontier Closed Area

Contract 6

AM3

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

LMH to Frontier Closed Area

Contract 6

AM4b^

House no. 10B1 Nga Yiu Ha Village

LMH to Frontier Closed Area

Contract 6

AM5a^

Ping Yeung Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM6

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM7b@

Loi Tung Village House

Sha Tau Kok Road

Contract 2

Contract 6

AM8

Po Kat Tsai Village No. 4

Po Kat Tsai

Contract 2

AM9b#

Nam Wa Po Village House No. 80

Fanling

Contract 3

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

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

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

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

 

Table 3-3        Impact Monitoring Stations - Construction Noise

Station ID

Description

Works Area

Related to the Work Contract

NM1

Tsung Yuen Ha Village House No. 63

BCP

SS C505

Contract 7

NM2a#

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 6

NM3

Ping Yeung Village House (facade facing northeast)

Ping Yeung to Wo Keng Shan

Contract 6

NM4

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

NM5

Village House, Loi Tung

Sha Tau Kok Road

Contract 2,

Contract 6

NM6

Tai Tong Wu Village House 2

Sha Tau Kok Road

Contract 2,

Contract 6

NM7

Po Kat Tsai Village

Po Kat Tsai

Contract 2

NM8

Village House, Tong Hang

Fanling

Contract 2

Contract 3

NM9

Village House, Kiu Tau Village

Fanling

Contract 3

NM10

Nam Wa Po Village House No. 80

Fanling

Contract 3

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

 

 

Table 3-4        Impact Monitoring Stations - Water Quality

Station ID

Description

Coordinates of Designated / Alternative Location

Nature of the location

Related to the Work Contract

Easting

Northing

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

SS C505

Contract 6

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

SS C505

Contract 6

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at upstream 81m of the designated location

Contract 6

WM2A(a)*

Downstream of River Ganges

834 191

844 474

Alternative location located at upstream 70m of the designated location

Contract 6

WM2A- Controlx#

Upstream of River Ganges

835 377

844 188

Alternative location located at upstream 160m of the designated location

Contract 6

WM2B

Downstream of River Ganges

835 433

843 397

NA

Contract 6

WM2B- Control

Upstream of River Ganges

835 835

843 351

Alternative location located at downstream 31m of the designated location

Contract 6

WM3x#

Downstream of River Indus

836 206

842 270

Alternative location located at downstream 180m of the designated location

Contract 2

Contract 6

WM3- Control

Upstream of River Indus

836 763

842 400

Alternative location located at downstream 26m of the designated location

Contract 2

Contract 6

WM4

Downstream of Ma Wat Channel

833 850

838 338

Alternative location located at upstream 11m of the designated location

Contract 2

Contract 3

WM4– 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– Control B

Upstream of Ma Wat Channel

833760

837395

Alternative location located at upstream 15m of the designated location

Contract 2

Contract 3

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

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

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

 

3.4              Monitoring Frequency and Period

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

 

Air Quality Monitoring

3.4.1                 Frequency of impact air quality monitoring is as follows:

Ÿ   1-hour TSP

3 times every six days during course of works

Ÿ   24-hour TSP

Once every 6 days during course of works.

 

Noise Monitoring

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

 

Water Quality Monitoring

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

 

3.5              Monitoring Equipment

Air Quality Monitoring

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

 

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

 

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

Table 3-5         Air Quality Monitoring Equipment

Equipment

Model

24-Hr TSP

High Volume Air Sampler

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

Calibration Kit

TISCH Model TE-5025A*

1-Hour TSP

Portable Dust Meter

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

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

 

Wind Data Monitoring Equipment

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

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

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

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

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

 

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

 

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

 

Noise Monitoring

3.5.7                 Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying out the noise monitoring.  The sound level meter shall be checked using an acoustic calibrator.  The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m/s.

 

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

Table 3-6         Construction Noise Monitoring Equipment

Equipment

Model

Integrating Sound Level Meter

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

Calibrator

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

Portable Wind Speed Indicator

Testo Anemometer

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

 

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

 

Water Quality Monitoring

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

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

•                 a temperature of between 0 and 45 degree Celsius.

 

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

 

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

 

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

 

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

 

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

 

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

 

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

Table 3-7         Water Quality Monitoring Equipment

Equipment

Model

Water Depth Detector

Eagle Sonar or tape measures

Water Sampler

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

Thermometer & DO meter

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

pH meter

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

Turbidimeter

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

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

‘Willow’ 33-liter plastic cool box with Ice pad

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

 

3.6              Monitoring Methodology

1-hour TSP Monitoring

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

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

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

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

 

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

 

24-hour TSP Monitoring

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

(a.)         An anodized aluminum shelter;

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

(c.)         A blower motor assembly;    

(d.)        A continuous flow/pressure recorder;

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

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

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

 

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

 

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

 

Noise Monitoring

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

 

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

 

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

 

Water Quality

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

 

Sampling Procedure

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

 

3.6.11             If the water level of a monitoring station is too shallow when sampling, sediment would be disturbed which affecting the accuracy of water quality monitoring.  In order to avoid disturbing sediment, depth limits should be set up for the water sampling for the ease of reference.  When the measured water depth of the monitoring station (both control and impact stations) is lower than 150mm, water monitoring would not be to perform at that monitoring location.  Instead, the monitoring location will be moved to a temporary alternative location monitoring location based on the criteria below:-

(a)    the alternative location should be either upstream or downstream of the original location and at the same the river/drain channel

(b)   the alternative location should be within 15m far from the original location

(c)    if no suitable alternative location could be found within 15m far from the original location, the sampling at that location will be cancelled since sampling at too far from the designated location could not make a representative sample.

3.6.12             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.

 

3.6.13             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.

 

3.6.14             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

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

 

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

 

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

 

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

 

Laboratory Analysis

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

 

3.7              Equipment Calibration

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

 

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

 

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

 

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

 

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

 

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

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

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

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

AM1b

265

143

500

260

AM2

268

149

AM3

269

145

AM4b

267

148

AM5a

268

143

AM6

269

148

AM7b

275

156

AM8

269

144

AM9b

271

151

 

 

Table 3-9         Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

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

When one or more documented complaints are received

75 dB(A)Note 1 & Note 2

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

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

 

Table 3-10       Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

WM1

WM2A(a)

WM2B

WM3x

WM4

DO (mg/L)

Action Level

(*)4.23

(**)4.00

(*)4.74

(**)4.00

(*)4.14

Limit Level

(#)4.19

(**)4.00

(#)4.60

(**)4.00

(#)4.08

Turbidity (NTU)

Action Level

51.3

24.9

11.4

13.4

35.2

AND  120% of upstream control station of the same day

Limit Level

67.6

33.8

12.3

14.0

38.4

AND  130% of upstream control station of the same day

SS (mg/L)

Action Level

54.5

14.6

11.8

12.6

39.4

AND  120% of upstream control station of the same day

Limit Level

64.9

17.3

12.4

12.9

45.5

AND  130% of upstream control station of the same day

Remarks:

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

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

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

 

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

 

3.9              Data Management and Data QA/QC Control

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

 

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

4                    Air Quality Monitoring

4.1              General

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

 

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

 

4.2              Air Quality Monitoring Results

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

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

79

6-Oct-17

9:34

69

69

65

12-Oct-17

132

12-Oct-17

9:33

40

39

45

18-Oct-17

74

18-Oct-17

9:37

39

40

32

24-Oct-17

136

24-Oct-17

13:36

72

71

65

30-Oct-17

98

30-Oct-17

9:27

78

81

77

Average

(Range)

104

(74 – 136)

Average

(Range)

59

(32 – 81)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

93

6-Oct-17

9:32

73

74

73

12-Oct-17

136

12-Oct-17

9:29

39

41

46

18-Oct-17

64

18-Oct-17

9:23

41

41

35

24-Oct-17

145

24-Oct-17

13:26

71

69

74

30-Oct-17

135

30-Oct-17

9:01

80

84

81

Average

(Range)

115

(64 – 145)

Average

(Range)

61

(35 – 84)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

104

6-Oct-17

9:30

66

69

66

12-Oct-17

103

12-Oct-17

9:26

40

42

46

18-Oct-17

109

18-Oct-17

9:21

41

42

36

24-Oct-17

93

24-Oct-17

9:37

64

66

70

30-Oct-17

142

30-Oct-17

13:34

75

78

79

Average

(Range)

110

(93 – 142)

Average

(Range)

59

 (36 – 79)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

63

4-Oct-17

9:00

56

58

60

12-Oct-17

58

10-Oct-17

9:48

40

40

41

18-Oct-17

64

16-Oct-17

9:33

45

44

46

24-Oct-17

39

21-Oct-17

9:30

80

82

84

30-Oct-17

89

27-Oct-17

9:29

62

65

80

Average

(Range)

63

(39 – 89)

Average

(Range)

59

(40 – 84)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

56

4-Oct-17

9:03

56

53

56

12-Oct-17

133

10-Oct-17

9:52

40

40

39

18-Oct-17

95

16-Oct-17

9:31

42

45

44

24-Oct-17

101

21-Oct-17

9:33

74

88

92

30-Oct-17

113

27-Oct-17

9:27

59

61

72

Average

(Range)

100

 (56 – 133)

Average

(Range)

57

(39 – 92)

 

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

63

4-Oct-17

9:07

55

57

58

12-Oct-17

139

10-Oct-17

10:04

41

41

41

18-Oct-17

129

16-Oct-17

9:27

45

46

45

24-Oct-17

116

21-Oct-17

9:37

73

76

75

30-Oct-17

104

27-Oct-17

9:21

54

64

73

Average

(Range)

110

 (63 – 139)

Average

(Range)

56

(41 – 76)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

75

4-Oct-17

9:12

63

59

61

12-Oct-17

140

10-Oct-17

13:21

39

40

36

18-Oct-17

73

16-Oct-17

9:23

42

43

45

24-Oct-17

152

21-Oct-17

9:45

81

97

99

30-Oct-17

147

27-Oct-17

13:29

74

86

71

Average

(Range)

117

 (73 – 152)

Average

(Range)

62

(36 – 99)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

17

4-Oct-17

13:00

54

51

58

12-Oct-17

32

10-Oct-17

13:14

40

40

38

18-Oct-17

24

16-Oct-17

9:18

46

47

43

24-Oct-17

32

21-Oct-17

13:00

84

73

82

30-Oct-17

85

27-Oct-17

9:12

70

79

74

Average

(Range)

38

 (17 – 85)

Average

(Range)

59

(38 – 84)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

6-Oct-17

25

6-Oct-17

9:21

43

40

41

12-Oct-17

78

12-Oct-17

9:27

73

74

73

18-Oct-17

49

18-Oct-17

9:34

94

84

84

24-Oct-17

61

24-Oct-17

9:48

56

66

78

30-Oct-17

58

30-Oct-17

9:50

72

70

73

Average

(Range)

54

(25 – 78)

Average

(Range)

68

(40 – 94)

 

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

 

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

 

5                    Construction Noise Monitoring

5.1              General

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

 

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

 

5.2              Noise Monitoring Results (normal daytime)

5.2.1                 In the Reporting Period, a total of 45 events noise measurements were carried out at the designated locations.  The sound level meter was set in 1m from the exterior of the building façade including noise monitoring locations NM1, NM3, NM4, NM5, NM6, NM7, NM8 and NM9.  Therefore, no façade correction (+3 dB(A)) is added according to acoustical principles and EPD guidelines.  However, free-field status were performed at NM2a and NM10 and façade correction (+3 dB(A)) has added according to the requirement in this month.  The noise monitoring results at the designated locations are summarized in Tables 5-1 and 5-2.  The detailed noise monitoring data are presented in Appendix I and the relevant graphical plots are shown in Appendix J.

Table 5-1         Summary of Construction Noise Monitoring Results

Construction Noise Level (Leq30min), dB(A)

Date

NM1

NM2a(*)

NM8

NM9

NM10(*)

6-Oct-17

58

74

60

61

64

12-Oct-17

59

68

60

67

69

18-Oct-17

57

69

59

66

67

24-Oct-17

57

71

60

62

64

30-Oct-17

59

74

63

65

68

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

 

4-Oct-17

65

62

51

58

65

 

10-Oct-17

60

65

52

59

61

 

16-Oct-17

62

65

53

59

61

 

27-Oct-17

59

64

51

58

60

 

Limit Level

75 dB(A)

 

 

54

 

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

 

6                    Water Quality Monitoring

6.1              General

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

 

6.2              Results of Water Quality Monitoring

6.2.1                 In the Reporting Period, a total of thirteen (13) sampling days was scheduled to carry out for all designated locations with their control stations.  Since exceedances were recorded at WM2A(a), and WM4, according to “Event and Action Plan” stipulation, 1, 3 and 2 additional water quality monitoring day was conducted for WM1, WM2A(a) and WM4 respectively and theirs control stations in the reporting period.  

 

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

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

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM4

WM4-CA

WM4-CB

WM4

WM4-CA

WM4-CB

WM4

WM4-CA

WM4-CB

3-Oct-17

5.7

6.4

5.6

33.0

8.6

11.1

28.0

<2

6.5

5-Oct-17

5.2

5.4

4.5

15.8

6.8

15.3

19.0

<2

16.0

7-Oct-17

4.8

5.8

4.4

12.8

3.5

11.1

14.0

4.5

12.5

10-Oct-17

5.2

5.5

4.6

32.8

2.6

6.5

39.0

2.5

7.5

12-Oct-17

4.5

5.5

4.0

10.3

3.3

5.4

10.5

3.5

5.0

14-Oct-17

5.0

6.4

3.7

34.9

7.1

10.6

31.5

9.0

11.5

16-Oct-17

4.9

5.1

3.7

130.5

8.2

18.1

77.0

5.5

11.0

17-Oct-17#

#

#

#

92.4

8.9

9.9

58.0

5.0

6.0

18-Oct-17

5.2

5.5

4.1

14.3

2.9

7.0

16.5

3.0

8.0

19-Oct-17#

#

#

#

9.8

2.4

5.1

15.0

2.0

6.0

20-Oct-17

5.6

6.3

5.2

27.0

4.9

5.9

26.5

2.0

5.5

23-Oct-17

5.8

6.7

5.2

13.8

3.4

6.6

17.5

<2

7.0

25-Oct-17

7.5

8.8

7.1

10.1

1.2

5.7

13.5

<2

6.0

27-Oct-17

7.4

8.7

6.9

7.3

1.3

7.8

9.5

<2

11.5

30-Oct-17

8.7

8.5

7.9

11.9

4.7

8.0

15.5

<2

8.0

Remarks:

bold with underline indicated Limit Level exceedance

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

 

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

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM1

WM1-C

WM1

WM1-C

WM1

WM1-C

3-Oct-17

4.7

4.9

22.8

18.9

14.0

8.0

4-Oct-17#

#

#

38.4

25.2

26.0

10.0

5-Oct-17

4.6

4.6

38.0

23.8

29.5

11.5

7-Oct-17

4.6

4.4

33.6

24.2

31.5

17.0

10-Oct-17

4.3

4.0

21.7

31.4

16.0

28.0

12-Oct-17

4.4

3.9

19.1

25.7

14.5

22.5

14-Oct-17

4.7

4.9

21.4

29.4

16.5

25.0

16-Oct-17

5.5

5.3

1007.0

overrange

813.0

1970.0

18-Oct-17

4.3

4.6

28.8

20.8

28.5

18.0

20-Oct-17

5.7

5.3

29.0

23.3

25.0

22.0

23-Oct-17

4.7

4.1

23.5

15.7

20.0

12.0

25-Oct-17

7.9

8.4

34.7

25.3

26.5

22.0

27-Oct-17

7.7

6.8

24.2

23.6

20.5

20.5

30-Oct-17

8.1

8.4

17.6

16.1

13.0

13.0

Remarks:

# 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(a)

WM2A- Cx

WM2B

WM2B- C

WM2A(a)

WM2A- Cx

WM2B

WM2B- C

WM2A(a)

WM2A- Cx

WM2B

WM2B- C

3-Oct-17

4.8

4.7

*

*

14.8

6.9

*

*

5.5

<2

*

*

4-Oct-17#

#

#

*

*

15.6

42.8

*

*

6.0

36.0

*

*

5-Oct-17

4.5

4.3

*

*

15.6

52.7

*

*

7.0

35.0

*

*

7-Oct-17

4.8

5.2

*

*

21.1

7.0

*

*

12.0

3.0

*

*

10-Oct-17

4.4

4.7

*

*

11.2

4.8

*

*

4.0

3.0

*

*

12-Oct-17

4.7

4.7

*

*

14.3

4.8

*

*

8.0

2.0

*

*

14-Oct-17

4.9

5.6

*

*

8.5

6.3

*

*

4.0

<2

*

*

16-Oct-17

5.3

5.4

*

*

465.5

84.0

*

*

329.0

61.0

*

*

17-Oct-17#

#

#

*

*

69.6

5.7

*

*

37.0

2.0

*

*

18-Oct-17

5.2

4.7

*

*

32.1

3.5

*

*

32.0

3.0

*

*

19-Oct-17#

#

#

*

*

22.0

3.2

*

*

20.0

4.0

*

*

20-Oct-17

5.5

5.9

*

*

12.4

3.7

*

*

12.5

<2

*

*

23-Oct-17

4.8

5.4

*

*

8.2

3.4

*

*

5.5

<2

*

*

25-Oct-17

7.6

8.6

*

*

19.6

4.4

*

*

12.0

<2

*

*

27-Oct-17

7.2

7.4

*

*

8.7

3.8

*

*

4.0

<2

*

*

30-Oct-17

7.5

8.4

*

*

6.1

7.8

*

*

3.5

<2

*

*

 

Remarks:

bold with underline indicated Limit Level exceedance

bold with italic indicated Action Level exceedance

 

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

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

 

 

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

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM3x

WM3-C

WM3x

WM3-C

WM3x

WM3-C

3-Oct-17

4.9

5.3

9.8

10.8

5.0

17.0

5-Oct-17

4.8

4.6

7.8

8.4

8.0

6.0

7-Oct-17

5.4

5.3

12.6

7.4

6.0

11.0

10-Oct-17

4.7

4.7

3.7

17.4

9.0

25.5

12-Oct-17

4.8

4.7

3.4

10.8

3.0

31.5

14-Oct-17

5.3

5.9

5.7

4.2

4.0

8.0

16-Oct-17

4.6

5.2

22.8

19.8

25.0

28.5

18-Oct-17

4.8

5.1

3.6

3.7

3.5

10.0

20-Oct-17

4.1

5.4

2.9

6.1

6.0

23.0

23-Oct-17

5.2

5.4

5.8

24.9

7.0

25.0

25-Oct-17

8.2

8.4

4.6

2.4

4.5

5.5

27-Oct-17

7.2

7.1

2.2

2.9

3.5

4.0

30-Oct-17

8.8

8.9

11.1

10.7

9.5

13.0

 

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

Location

Dissolved Oxygen

Turbidity

Suspended Solids

Total Exceedance

Project Related exceedance

AL

LL

AL

LL

AL

LL

AL

LL

AL

LL

WM1

0

0

0

0

0

0

0

0

0

0

WM2A(a)

0

0

1

2

0

4

0

7

0

0

WM2B

0

0

0

0

0

0

0

0

0

0

WM3x

0

0

0

0

0

0

0

0

0

0

WM4

0

0

0

2

0

2

0

4

0

0

No of Exceedance

0

0

0

5

0

6

0

11

0

0

 

6.2.3                 In this Reporting Period, a total of eleven (11) Action Level (AL)/ Limit Level (LL) exceedances, namely five (5) AL/LL exceedance of turbidity and six (6) LL exceedances of Suspended Solids were recorded for the Project and they are summarized in Table 6-5.  Investigation for the cause of all the exceedances was completed and the investigation result revealed that all exceedances were non-project related.

 

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

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

Date of Exceedance

Location

Exceeded Parameter

Cause of Water Quality Exceedance In Brief

30 Sep 2017 (last reporting month)

WM1

NTU & SS

According to the weather information from the Observatory, there was heavy rain on 30 September 2017 and the total rainfall was 35mm.  The water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment other than the construction site.  In our investigation, the water quality mitigation implemented for Bridge Y and site condition was generally in order, it was considered that exceedances on 30 September 2017 were related to the rainstorm and not due to the works under the project.

16 and 17 Oct 2017

WM4

NTU & SS

During site inspection, it was observed that unknown source of muddy water attributed to their site area of Contract 3 via an underground pipe which connected from Kiu Tau Road (outside C3) to box culvert BC02 (under Contract 3).  The muddy water was finally entered Ma Wat River and got detected at WM4.   In our investigation, the general condition of the site area under Contracts 2 and 3 were in order and the deficiency found during inspection as rectified immediately.  It was considered that the exceedances were likely caused by the unknown source of muddy water attributed outside the site boundary and not related to the works under the Project.

16,17, 18 and 19 Oct 2007

WM2A(a)

NTU & SS

According to the weather information from the Observatory, successive heavy rainstorm was recorded on 15 to 17 October 2017.  The water quality throughout the river course was highly affected by the stirred up sediment and muddy runoff from the surrounding environment even outside the construction site.  On 16 October 2017, muddy water was also observed at the upstream area and deflated of Nylon Dam was observed in which muddy water trapped in the dam was flowing to downstream.

In our investigation, CCKJC had implemented water mitigation measures such as providing temporary bund and tarpaulin sheet align the river course, there were no adverse water quality impact observed during the site inspection.  Since the existing river water was found turbid even without adverse water impact of the site ad muddy water was also observed at upstream before water sampling on 16 October 2017, it is considered that the exceedances on 16 October 2017 was related to the rainstorm.  For the exceedances on 17 to 19 October 2017, it is considered that the exceedances were due the residual impact after rain.

 

 

7                    Ecology Monitoring

7.1              General

7.1.1                 Ecology monitoring for woodland compensation was shall be conducted at bi-monthly interval for the first year and the monitoring frequency would be reduced to quarterly from the second year. 

 

7.1.2                 The last bi-monthly ecological monitoring report (July - August 2017) was submitted to EPD in September 2017.  The next quarterly ecological monitoring report will cover the reporting period from September to November 2017 which present in next report month. 


 

8                    Waste Management

8.1              General Waste Management

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

 

8.2              Records of Waste Quantities

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

l Construction & Demolition (C&D) Material;

l Chemical Waste;

l General Refuse; and

l Excavated Soil.

 

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

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

Type of Waste

Contract 2

Contract 3

Contract 4

Contract 6

Contract 7

Contract SS C505

Total Qty.

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

C&D Materials (Inert)

(in '000m3)

77.6273

--

2.156

--

0

--

0.970

--

0.381

--

2.610

--

83.7443

Reused in this Contract (Inert)

(in '000 m3)

0

--

0.240

--

0

--

0.520

--

0

--

0.250

--

1.01

Reused in other Contracts/ Projects (Inert)

(in '000 m3)

0

--

0

--

0

--

0

--

0

--

0

--

0

Disposal as Public Fill (Inert)

(in '000 m3)

77.6273

Tuen Mun 38

1.372

Tuen Mun 38

0

--

0.450

Tuen Mun 38

0.381

Tuen Mun 38

2.360

TKO 137

82.1903

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

 

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

Type of Waste

Contract 2

Contract 3

Contract 4

Contract 6

Contract 7

Contract SS C505

Total

Quantity

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Recycled Metal (‘000kg) #

0.0280

Licensed collector

0

-

0

--

0

--

11.7

Licensed collector

51.130

Licensed collector

62.858

Recycled Paper / Cardboard Packing (‘000kg) #

0.300

Licensed collector

0

-

0

-

0

-

0.04

Licensed collector

0

Licensed collector

0.34

Recycled Plastic (‘000kg) #

2.2253

Licensed collector

0

-

0

--

0

--

0.001

Licensed collector

3.00

Licensed collector

5.2263

Chemical Wastes (‘000kg) #

8.9592

Licensed collector

0

-

0

--

0

--

0

--

0

--

8.9592

General Refuses (‘000m3)

0.6288

NENT

0.090

NENT

0

--

0.515

NENT

0.008

NENT

1.651

NENT

2.8928

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

 

 

9                    Site Inspection

9.1              requirements

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

 

9.2              Findings / Deficiencies During the Reporting Month

Contract 2

9.2.1                 In the Reporting Period, joint site inspection for Contract 2 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 20 and 27 October 2017.  No non-compliance was noted.

 

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

Table 9-1           Site Observations for Contract 2

Date

Findings / Deficiencies

Follow-Up Status

6 Oct 2017

Ÿ  As a reminder, all water discharge from site should be diverted to de-silting facilities prior discharge and comply with discharge license requirement. (General)

Ÿ  Not required for reminder.

13 Oct 2017

Ÿ  No adverse envionmental issue was observed.

Ÿ  Nil.

20 Oct 2017

Ÿ  No adverse envionmental issue was observed.

Ÿ  Nil.

27 Oct 2017

Ÿ  Mud was observed on the pedestrian road near the river side of site entrance. The Contractor was advised to clear the mud to prevent water pollution.

Ÿ  The Contractor was reminded to clear the mud near site hoarding at the works area of South Portal.

Ÿ  The mud has been removed.

 

 

Ÿ  Not required for reminder.

 

Contract 3

9.2.3                 In the Reporting Period, joint site inspection for Contract 3 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 3, 12, 18 and 26 October 2017.  No non-compliance was noted.

 

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

Table 9-2           Site Observations for Contract 3

Date

Findings / Deficiencies

Follow-Up Status

3 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

12 Oct 2017

Ÿ  The Contractor was reminded to provide regular maintenance for the AquaSed (WWST01) and to comply with the discharge license.

Ÿ  Not required for reminder.

18 Oct 2017

Ÿ  Turbid water discharged from an AquaSed (WWTS-01) was observed, immediate rectification action was being taken. The Contractor should provide regular maintenance for the AquaSed in order to comply with the discharge licence.

Ÿ  The discharge water from AquaSed (WWTS-01)  was visually clear and effluent quality checking for the AquaSed was carried out regularly.

26 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

Contract 4

9.2.5                 In the Reporting Period, joint site inspection for Contract 4 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 16 and 27 October 2017.  No non-compliance was noted.

 

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

Table 9-3           Site Observations for Contract 4

Date

Findings / Deficiencies

Follow-Up Status

6 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

13 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

16 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

27 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

 

Contract 6

9.2.7                 In the Reporting Period, joint site inspection for Contract 6 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 3, 12, 19 and 26 October 2017.  No non-compliance was noted.

 

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

Table 9-4           Site Observations for Contract 6

Date

Findings / Deficiencies

Follow-Up Status

3 Oct 2017

Ÿ  The Contractor was reminded to ensure the wheel-washing procedure at all site exit is properly implemented and the cleanliness of public road should be maintained.

Ÿ  Not required for reminder.

12 Oct 2017

Ÿ  Muddy runoff from a bursted pipe crossing bare ground and get into the river course was observed at Bridge Y. The Contractor was required to stop the pollution source immediately and provide mitigation measures.

Ÿ  The bursted pipe was removed and no muddy runoff observed.

19 Oct 2017

Ÿ  Oil stain was observed on the ground near a generator at Bridge Y. The Contractor should ensure the fuel filling procedure performed properly and to avoid oil spilling on ground.

Ÿ  It was reminded that site cleanliness and tidiness should be maintained.

Ÿ  It was reminded that drip tray should be provided for all chemical containers.

Ÿ  The Contractor was reminded to maintain cleanliness at public roads and site exits near Bridge Y and Chuk Yuen Road.

Ÿ  It was reminded that proper tree protection zone should be provided for retained trees.

Ÿ  The tray undernath the generator has been fixed.

 

Ÿ  Not required for reminder.

Ÿ  Not required for reminder.

Ÿ  Not required for reminder.

 

Ÿ  Not required for reminder.

26 Oct 2017

Ÿ  The Contractor was reminded to cover the exposed slope to minimize dust impact especially during dry season.  (Dong Dong Shan)

Ÿ  Not required for reminder.

 

Contract SS C505

9.2.9                 In the Reporting Period, joint site inspection for Contract SS C505 to evaluate the site environmental performance has been carried out by the RE, ET and the Contractor on 4, 11, 18 and 25 October 2017 in which IEC joined the site inspection on 25 October 2017.  No non-compliance was noted. 

 

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

Table 9-5           Site Observations for Contract SS C505

Date

Findings / Deficiencies

Follow-Up Status

4 Oct 2017

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

 

Ÿ  Not required for reminder.

11 Oct 2017

Ÿ  No adverse environmental issue was observed.

Ÿ  NA

18 Oct 2017

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

 

Ÿ  Not required for reminder.

25 Oct 2017

Ÿ  The Contractor was reminded to cover the stockpiles of cement bags with tarpaulin sheets to minimize dust impact.

Ÿ  Not required for reminder.

 

Contract 7

9.2.11             In the Reporting Period, joint site inspection for Contract 7 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 6, 13, 17 and 27 October 2017.  No non-compliance was noted.

 

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

Table 9-6           Site Observations for Contract 7

Date

Findings / Deficiencies

Follow-Up Status

6 Oct 2017

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

Ÿ  Chemical container was placed with drip tray underneath.

13 Oct 2017

Ÿ  Wastewater generated from wheel washing facilities at site entrance withouo proper treatment was observed. The Contractor was advised to provide proper mitigation measure to treat the wastewater before discharge.

Ÿ  Chemical container was observed without drip tray. The Contractor was advised to place chemical containers inside drip tray.

Ÿ  Sedimentation tank was provided for wastewater gnerated from the wheel washing facilities.

 

 

Ÿ  Chemical container was removed from site area.

17 Oct 2017

Ÿ  The Contractor was reminded to ensure no water direct discharge out of site.

Ÿ  Not required for reminder.

27 Oct 2017

Ÿ  Dry unpaved haul road was observed. The Contractor was advised to spray water on haul road regularly to minimize dust generation.

Ÿ  Water spraying was provided for the haul road.

 

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

10                Environmental Complaint and Non-Compliance

10.1          Environmental Complaint, Summons and Prosecutions

10.1.1             In the Reporting Period, no summons and prosecution under the EM&A Programme was lodged for all Contracts.  However, one (1) documented environmental complaint was received by under the EM&A Programme and the details are summarized below.  Moreover, there were two outstanding complaint investigations for last reporting month.  The status of the investigation report and finding and listed below.

 

Date of complaint

Complaint Detail

Investigation status

30 August 2017 (last reporting month)

A public complaint was received from Contract 6’s Project Hotline regarding the condition and cleanliness of Lin Ma Hang Road.  Investigation was triggered for all related Contracts including Contract 6, Contract 7 and Contract SS C505.

The Investigation Report for Contract 6, Contract 7 and Contract SS C505 have been conducted by ET and no further comment from IEC.  The detailed Investigation Reports were shown in Appendix O.

27 September 2017 (last reporting month)

An anonymous complainant was received by the police regarding construction noise heard at night.  The police came to North Portal Site of Contract 2 for investigation around 8:00pm and 1:00am and they checked the validity of the CNPs and no further comment and action were undertaken.

The site information such as site diary is still pending from Contractor (DHK) for investigation purpose.

 

As advised by the DHK, the works undertaken at the construction site was strictly followed the conditions of CNP and preliminary investigation revealed that the complaint was not valid to the Contract.

23 September 2017 (referred to AECOM on 25 October 2017)

The complaint was received by 1823 on 23 September 2017 and referred to AECOM on 25 October 2017 regarding the condition and cleanliness of Lin Ma Hang Road for the 1km section from Tai Kwu Ling Police Station towards Lin Ma Hang.

The Investigation Report has been conducted by ET and no further comment from IEC. The detailed Investigation Reports were shown in Appendix O.

 

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

Table 10-1         Statistical Summary of Environmental Complaints

Reporting Period

Contract No

Environmental Complaint Statistics

Project related complaint

Frequency

Cumulative

Complaint Nature

19 May 2014 –

30 Sep 2017

Contract 2

0

31

Ÿ (18)Water Quality

Ÿ (7) Dust

Ÿ (5) Noise

Ÿ (1) dust & noise

(6) water quality

(2) dust

(1) noise

06 Nov 2013 –

30 Sep 2017

Contract 3

0

5

Ÿ (1) Dust

Ÿ (3) Water quality

Ÿ (1) Noise

0

16 Aug 2013 –

30 Sep 2017

Contract 5

0

4

Ÿ (3) Dust

Ÿ (1) Noise

0

16 Aug 2013 –

30 Sep 2017

Contract 6

0

33

Ÿ (23) Water Quality

Ÿ (6) Dust

Ÿ (2) Noise

Ÿ (1) Nuisance

Ÿ (1) Water quality and dust

(7) water quality

(3) dust

(1) Nuisance

(1) Water quality and dust

15 Feb 2016 –

30 Sep 2017

Contract 7

0

2

Ÿ (1) Noise

Ÿ (1) Water quality and dust

(1) Water quality and dust

16 Aug 2013 –

30 Sep 2017

SS C505

0

3

Ÿ (1) Noise

Ÿ (1) dust

Ÿ (1) Water quality and dust

(1) Water quality and dust

1 – 31 October 2017

Contract 2

0

31

Ÿ (18)Water Quality

Ÿ (7) Dust

Ÿ (5) Noise

Ÿ (1) dust & noise

NA

Contract 3

0

5

Ÿ (1) Dust

Ÿ (3) Water quality

Ÿ (1) Noise

NA

Contract 4

0

0

NA

NA

Contract 6

1

34

Ÿ (23) Water Quality

Ÿ (7) Dust

Ÿ (2) Noise

Ÿ (1) Nuisance

Ÿ (1) Noise and dust

NA

Contract 7

0

2

Ÿ (1) Noise

Ÿ (1) Water quality and dust

NA

SS C505

0

3

Ÿ (1) Noise

Ÿ (1) dust

Ÿ (1) Water quality and dust

NA

 

Table 10-2         Statistical Summary of Environmental Summons

Reporting Period

Contract No

Environmental Summons Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 –

30 Sep 2017

Contract 2

0

1

contravening the Water Pollution Control (General) Regulations

06 Nov 2013 –

30 Sep 2017

Contract 3

0

0

NA

16 Aug 2013 –

30 Sep 2017

Contract 5

0

0

NA

16 Aug 2013 –

30 Sep 2017

Contract 6

0

0

NA

15 Feb 2016 –

30 Sep 2017

Contract 7

0

0

NA

16 Aug 2013 –

30 Sep 2017

SS C505

0

0

NA

1 – 31 October 2017

Contract 2

0

1

NA

Contract 3

0

0

NA

Contract 4

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 

Table 10-3         Statistical Summary of Environmental Prosecutions

Reporting Period

Contract No

Environmental Prosecutions Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 –

30 Sep 2017

Contract 2

0

1

contravening the Water Pollution Control (General) Regulations

06 Nov 2013 –

30 Sep 2017

Contract 3

0

0

NA

16 Aug 2013 –

30 Sep 2017

Contract 5

0

0

NA

16 Aug 2013 –

30 Sep 2017

Contract 6

0

0

NA

15 Feb 2016 –

30 Sep 2017

Contract 7

0

0

NA

16 Aug 2013 –

30 Sep 2017

SS C505

0

0

NA

1 – 31 October 2017

Contract 2

0

1

NA

Contract 3

0

0

NA

Contract 4

0

0

NA

Contract 6

0

0

NA

Contract 7

0

0

NA

SS C505

0

0

NA

 

11                Implementation Status of Mitigation Measures

11.1          General Requirements

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

 

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

 

Table 11-1         Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Water Quality

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

Air Quality

·       Maintain damp / wet surface on access road

·       Low vehicular speed within the works areas.

·       All vehicles must use wheel washing facility before off site

·       Sprayed water during breaking works

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

Noise

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

·       Keep good maintenance of plants

·       Place noisy plants away from residence or school

·       Provide noise barriers or hoarding to enclose the noisy plants or works

·       Shut down the plants when not in used.

Waste and Chemical Management

·       On-site sorting prior to disposal

·       Follow requirements and procedures of the “Trip-ticket System”

·       Predict required quantity of concrete accurately

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

General

·       The site was generally kept tidy and clean.

 

11.2          Tentative Construction Activities in the Coming Month

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

Contract 2

Mid-Vent Portal

Ÿ    Construction of Cut and Cover structure and backfilling

Ÿ    Construction of adit enlargement internal structure

Ÿ    Adit and stud tunnel internal structure

Ÿ    Ventilation building superstructure and internal structure works

Ÿ    Structure connecting the adit tunnel, and ventilation building

Ÿ    Temporary drainage system

North Portal

Ÿ    Construction of retaining wall, permanent drainage, footways and stairs

Ÿ    Southbound tunnel enlargement, waterproofing and lining

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

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

Ÿ    Connection structure construction

Ÿ    TBM/ Mechanical excavation of tunnels

North ventilation building superstructure, internal structure and backfilling

Ÿ    Pedestrian and Vehicular Access to C2 North Portal

South Portal

Ÿ    Post-excavation activities and earthwork

Ÿ    Tunnel internal structure, construction of CP and tunnel backfilling

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

Ÿ    Southbound and Northbound tunnel invert, waterproofing and lining

Ÿ    Construction of Permanent Retaining Walls and backfilling

Ÿ    Installation of aluminum cladding at South ventilation building

Admin Building

Ÿ    Construction of permanent drainage and fencing wall

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

Contract 3

Ÿ   Boundary wall for pumping station

Ÿ   Cable detection and trail trenches

Ÿ   Installation of Noise Barrier steel column & panel

Ÿ   Remaining works on New Kiu Tau Footbridge

Ÿ   Mini-pile installation

Ÿ   Noise barrier construction

Ÿ   Roadworks

Ÿ   Viaduct segment erection

Ÿ   Water main laying works

Ÿ   Parapet Installation on bridge deck

Ÿ   Construction of Profile barrier & Planter wall on Bridge deck

Ÿ   Drainage Work

Ÿ   Stressing of External Tendon

Ÿ   Construction of retaining wall behind abutment

Ÿ   Installation of Sign Gantry

Contract 4

Ÿ   System design

Ÿ   E&M installation at Admin Building

Ÿ   E&A installation in tunnel

Contract 6

Ÿ   Segment section

Ÿ   Bridge installation

Ÿ   Tunnel Works

Ÿ   Sewage Treatment Plant Construction

Ÿ   Tunnel Ventilation Building Construction

Ÿ   Slip Road/At-grade Road/Periphery Road Construction

Contract 7

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

Ÿ   Column construction at Bridge A and E

Ÿ   Deck construction at Bridge B and D

Ÿ   Construction of parapet wall and Façade Bridge C

Contract SS C505

Ÿ   Building no. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 18, 41 and 43 construction

Ÿ   Tower crane operation

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

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

Ÿ   Formwork and falsework for PTB’s slab construction and Bridges Decks

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

Ÿ   Construction PTB non-structural wall, Late Cast Strip, Stairs and Lift Shaft

Ÿ   Steel beam works for maintenance platform for PTB

Ÿ   PTB backfilling works

Ÿ   Elevated Walkway E1, E2, E3 and E4 construction

Ÿ   Bridge deck construction for Bridges 1 - 5

 

11.3          Key Issues for the Coming Month

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

Ÿ    Implementation of control measures for rainstorm;

Ÿ    Regular clearance of stagnant water during wet season;

Ÿ    Implementation of dust suppression measures at all times;

Ÿ    Potential wastewater quality impact due to surface runoff;

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

Ÿ    Disposal of empty engine oil containers within site area;

Ÿ    Ensure dust suppression measures are implemented properly;

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

Ÿ    Management of chemical wastes;

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

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

Ÿ    Implementation of construction noise preventative control measures

 

12                Conclusions and Recommendations

12.1          Conclusions

12.1.1             This is the 51st monthly EM&A report presenting the monitoring results and inspection findings for the Reporting Period from 1 to 31 October 2017.

 

12.1.2             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.

 

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

 

12.1.4             For water quality monitoring, a total of eleven (11) Action Level (AL)/ Limit Level (LL) exceedances, namely five (5) AL/LL exceedance of turbidity and six (6) LL exceedances of Suspended Solids were recorded for the Project.  Investigation for the cause of all the exceedances was completed and the investigation result revealed that all exceedances were non-project related.

 

12.1.5             In this Reporting Period, one (1) documented environmental complaints was received under the EM&A Programme. Subsequent joint site inspection was carried out for investigation of the complaint and the investigation report revealed that the complaint was not valid to the project.  

 

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

 

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

 

12.2          Recommendations

12.2.1             During dry season, special attention should be paid on the potential construction dust impact since most of the construction sites are adjacent to villages. The Contractor should fully implement the construction dust mitigation measures as appropriately.

 

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

 

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

 

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

 

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