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.31) ¡V February 2016

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

10 March 2016

TCS00694/13/600/R0151v2

Nicola Hon

(Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 March 2016

First Submission

2

10 March 2016

Amended according to the IEC¡¦s comments on 9 March 2016

 

 

 

 

 

 

 

 

 


executive summary

ES01            This is the 31st monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 29 February 2016 (hereinafter ¡¥the Reporting Period¡¦).

 

Environmental Monitoring and Audit Activities

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

 

ES03            In the Reporting Period, the construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project currently included Contract 2, Contract 3, Contract 5, Contract 6 and Contract SS C505.  In addition, construction work for Contract 7 has been commenced on 15 February 2016.  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

150

24-hour TSP

9

51

Construction Noise

Leq(30min) Daytime

10

55

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C,

12(*)

WM2A & WM2A-C

12(*)

WM2B & WM2B-C

16(*)

WM3 &WM3-C

12(*)

WM4, WM4-CA &WM4-CB

13(*)

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

4

Contract 5

4

Contract 6

4

Contract 7

2

Contract SS C505

4

(*) Monitoring day

 

Breach of Action and Limit (A/L) Levels

ES04            In the Reporting Period, no air quality exceedance was registered for the Project.  For construction noise, one (1) noise complaint was received by 1823 for Contract 3 on 18 February 2016 which triggered the Action Level (AL).  For water quality monitoring, a total of eleven (11) Limit Level (LL)exceedances were recorded, namely six (6) LL exceedance of turbidity and five (5) LL exceedance of Suspended Solids for 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

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

24-hour TSP

0

0

0

--

--

Construction Noise

Leq(30min) Daytime

1

0

1

The noise complaint was not project related.

NA

Water Quality

DO

0

0

0

--

--

Turbidity

0

6

6

-       one LL exceedance of turbidity and one LL exceedance of SS on were related to C3

-       two LL exceedance of turbidity and two LL exceedance of SS on were related to C6 whereas three LL exceedance of turbidity and two LL exceedance of SS on were not project related

-       The construction activity causing the turbid water at C3 was completed.

 

-       Improvement works were undertaken by the Contractor C6

SS

0

5

5

 

Environmental Complaint

ES05            In this Reporting Period, three (3) documented environmental complaints were received for the Project. Specifically, two (2) complaints were related to Contracts 6 regarding turbid water and soil/ debris brought by the dump trucks water on 22 and 23 February 2016 respectively.  Besides, one (1) complaint was received for Contract 3 regarding construction noise issues on 18 February 2016.  Follow up actions have been undertaking by the Contractor to resolve the deficiencies. Investigation report for complaints had conducted by ET and submitted to relevant parties.

 

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 5, 12, 19 and 26 February 2016.  No non-compliance was noted.

 

ES09            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 3 has been carried out by the RE, IEC, ET and the Contractor on 1, 11, 17, 22 and 29 February 2016.  No non-compliance was noted.

 

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 5 has been carried out by the RE, IEC, ET and the Contractor on 2, 11, 16 and 23 February 2016.  No non-compliance was noted.

 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, IEC, ET and the Contractor on 4, 12, 18 and 25 February 2016.  No non-compliance was noted.

 

ES12            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, IEC, ET and the Contractor on 3, 11, 17 and 24 February 2016.  No non-compliance was noted.

 

ES13            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 7 has been carried out by the RE, IEC, ET and the Contractor on 16 and 23 February 2016.  No non-compliance was noted.

 

Future Key Issues

ES14            In upcoming wet season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River or public area would be the key issue.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for Contract 6.

 

ES15            Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.

 

ES16            Since most of construction sites under the Project are located adjacent to villages, the Contractors should fully implement air quality mitigation measures to reduce construction dust emission.

 

 

 


Table of Contents

1     Introduction   1

1.1            Project Background   1

1.2            Report Structure  1

2     Project Organization and Construction progress  3

2.1            Construction Contract Packaging   3

2.2            Project Organization   4

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  15

3.6            Monitoring Methodology   18

3.7            Equipment Calibration   19

3.8            Derivation of Action/Limit (A/L) Levels  20

3.9            Data Management and Data QA/QC Control  21

4     Air Quality Monitoring   22

4.1            General  22

4.2            Air Quality Monitoring Results in Reporting Month   22

5     Construction Noise Monitoring   25

5.1            General  25

5.2            Noise Monitoring Results in Reporting Month   25

6     Water Quality Monitoring   25

6.1            General  26

6.2            Results of Water Quality Monitoring   26

7     Waste Management   29

7.1            General Waste Management  29

7.2            Records of Waste Quantities  29

8     Site Inspection   30

8.1            requirements  30

8.2            Findings / Deficiencies During the Reporting Month   30

9     Environmental Complaint and Non-Compliance   35

9.1            Environmental Complaint, Summons and Prosecution   35

10   Implementation Status of Mitigation Measures  40

10.1          General Requirements  40

10.2          Tentative Construction Activities in the Coming Month   40

10.3          Key Issues for the Coming Month   42

11   Conclusions and Recommendations  43

11.1          Conclusions  43

11.2          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 ¡V AM1a

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

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

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

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

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

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

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

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

Table 5-1        Summary of Construction Noise Monitoring Results (Contract 3 and 5)

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

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

Table 6-2        Summary of Water Quality Monitoring Results for Contract 5 and SS C505

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

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

Table 6-5        Breaches of Water Quality Monitoring Criteria in Reporting Period

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

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

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

Table 8-1        Site Observations for Contract 2

Table 8-2        Site Observations for Contract 3

Table 8-3        Site Observations for Contract 5

Table 8-4        Site Observations for Contract 6

Table 8-5        Site Observations for Contract SS C505

Table 8-6        Site Observations for Contract 7

Table 9-1        Statistical Summary of Environmental Complaints

Table 9-2        Statistical Summary of Environmental Summons

Table 9-3        Statistical Summary of Environmental Prosecution

Table 10-1      Environmental Mitigation Measures

 

List of Appendices

Appendix A    Layout Plan of the Project

Appendix B    Organization Chart

Appendix C    3-month rolling construction program

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

Appendix E    Monitoring Locations for Impact Monitoring

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

Appendix G    Event and Action Plan

Appendix H    Impact Monitoring Schedule

Appendix I     Database of Monitoring Result

Appendix J     Graphical Plots for Monitoring Result

Appendix K    Meteorological Data

Appendix L    Waste Flow Table

Appendix M   Implementation Schedule for Environmental Mitigation Measures

Appendix N    Investigation Report for Exceedance

 

 

 


1                    Introduction

1.1                       Project Background

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

 

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

 

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

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

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

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

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

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

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

 

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

 

1.1.5                 This is 31st monthly EM&A report presenting the monitoring results and inspection findings for reporting period from 1 to 29 February 2016.

 

1.2                       Report Structure

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

Section 1     Introduction

Section 2     Project Organization and Construction Progress

Section 3     Summary of Impact Monitoring Requirements

Section 4     Air Quality Monitoring

Section 5     Construction Noise Monitoring

Section 6     Water Quality Monitoring

Section 7     Waste Management

Section 8     Site Inspections

Section 9     Environmental Complaints and Non-Compliance

Section 10   Implementation Status of Mitigation Measures

Section 11   Conclusions and Recommendations

 

 

 


2     Project Organization and Construction progress

2.1                       Construction Contract Packaging

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

¡P              Contract 2 (CV/2012/08)

¡P              Contract 3 (CV/2012/09)

¡P              Contract 4 (NE/2014/02)

¡P              Contract 5 (CV/2013/03)

¡P              Contract 6 (CV/2013/08)

¡P              Contract 7 (NE/2014/03)

¡P              ArchSD Contract No. SS C505

 

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

 

Contract 2 (CV/2012/08)

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

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

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

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

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

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

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

 

Contract 3 (CV/2012/09)

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

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

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

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

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

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

 

Contract 4 (NE/2014/02)

2.1.5                 Contract 4 has not yet been awarded.  The work of the Contract 4 includes provision and installation of Traffic Control and Surveillance System and the associated electrical and mechanical works for the Project.

 

Contract 5 (CV/2013/03)

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

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

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

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

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

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

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

 

Contract 6 (CV/2013/08)

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

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

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

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

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

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

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

 

Contract 7 (NE/2014/03)

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

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

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

 

ArchSD Contract No. SS C505

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

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

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

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

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

Ÿ    a public carpark; and

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

 

2.2                       Project Organization

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

 

Civil Engineering and Development Department (CEDD)

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

 

Architectural Services Department (ArchSD)

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

 

Environmental Protection Department (EPD)

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

 

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

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

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

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

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

Ÿ    Participate in joint site inspection by the ET and IEC

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

Ÿ    Adhere to the procedures for carrying out complaint investigation

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

 

Engineer or Engineers Representative (ER)

2.2.6                 The ER is responsible for overseeing the construction works and for ensuring that the works are undertaken by the Contractor in accordance with the specification and contract requirements. The duties and responsibilities of the ER with respect to EM&A are:

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

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

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

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

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

¡P           Adhere to the procedures for carrying out complaint investigation

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

 

The Contractor(s)

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

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

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

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

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

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

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

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

¡P           Adhere to the procedures for carrying out complaint investigation

 

Environmental Team (ET)

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

 

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

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

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

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

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

¡P           Audit environmental conditions on site

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

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

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

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

¡P           Adhere to the procedures for carrying out complaint investigation

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

 

Independent Environmental Checker (IEC)

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

 

2.2.12             The Independent Environmental Checker (IEC) should not be in any way an associated body of the Contractor or the ET for the Project. The IEC should be employed by the Permit Holder (i.e., CEDD) prior to the commencement of the construction of the Project. The IEC should have at least 10 years¡¦ experience in EM&A and have relevant professional qualifications. The appointment of IEC should be subject to the approval of EPD. The IEC should:

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

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

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

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

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

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

¡P           Check the effectiveness of corrective measures

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

¡P           Check that the mitigation measures are effectively implemented

¡P           Verify the log-book(s) mentioned in Condition 2.2 of the EP, notify the Director by fax, within one working day of receipt of notification from the ET Leader of each and every occurrence, change of circumstances or non-compliance with the EIA Report and/or the EP, which might affect the monitoring or control of adverse environmental impacts from the Project

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

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

 

2.3                       Concurrent Projects

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

                                (a)            Regulation of Shenzhen River Stage IV;

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

                                (c)            Construction of BCP facilities in Shenzhen.

 

2.4                       Construction Progress

2.4.1                 In the Reporting Period, the major construction activity conducted under the Project is located in Contracts 2, 3, 5, 6 and SS C505 and they are summarized in below.  Moreover, the 3-month rolling construction program of the Contracts 2, 3, 5, 6 and SS C505 is enclosed in Appendix C.  For Contract 7, construction activities were scheduled to commence in February 2016 and therefore no construction activities was undertaken in the Reporting Period.

 

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    Installation of blast curtain

Ÿ    Tube excavation (NB + SB)

Ÿ    Adit invert slab

Ÿ    Building works foundation

North Portal

Ÿ    Slope stablilization and retaining wall

Ÿ    Northbound top heading excavation and tunnel enlargement

Ÿ    Tunnel Boring Machine (TBM) excavation

South Portal

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

Ÿ    Building works foundation and substructure

Admin Building

Ÿ    Building works foundation

Contract 3 (CV/2012/09)

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

Ÿ   Cable detection and trial trenches

Ÿ   Decking construction for Bridge E

Ÿ   E&M work for new valve control & Telemetry House

Ÿ   Filling works at Tong Hang East

Ÿ   FRP Lining on existing water main

Ÿ   Storm drain laying

Ÿ   Noise barrier construction

Ÿ   Pier / pier table construction

Ÿ   Pile cap works

Ÿ   Portal beam construction

Ÿ   Pre-drilling

Ÿ   Retaining Wall construction

Ÿ   Road works at Fanling Highway

Ÿ   Sewer works

Ÿ   Tree felling works

Ÿ   Utilities duct laying

Ÿ   Viaduct segment erection

Ÿ   Slope works

Ÿ   Waterworks

 

Contract 4 (Contract number to be assigned)

2.4.4                 The contract has not yet been awarded.

 

Contract 5 (CV/2013/03)

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

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

Ÿ   Drainage works of Depressed Road at BCP3

Ÿ   Additional works (Access Works) for Village House at RS4

Ÿ   Drainage works at existing LMH Road

Ÿ   Brick laying at footpath of proposed LMH road

Ÿ   Preparation works for planting at proposed LMH road

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

Ÿ   Irrigation at proposed LMH Road

Ÿ   Water works at existing LMH Road

Ÿ   Bituminous laying at L15 road  existing & proposed LMH road

 

Contract 6 (CV/2013/08)

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

Ÿ   Site Clearance

Ÿ   Slope Works

Ÿ   Site Accesses Construction

Ÿ   Ground Investigation (GI) Works

Ÿ   Soil nail

Ÿ   Bored piling

Ÿ   Pile cap construction

 

Contract 7 (NE/2014/03)

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

Ÿ   Erection of Engineer¡¦s Site Office

Ÿ   Ground Investigation Works for Bridge A-E

Ÿ   Piling Works for Bridge B-D

 

Contract SS C505

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

Ÿ   General Site Setup

Ÿ   Building no. 5 and 9 construction

Ÿ   Assembly of Crawler Crane / Driling Rig / Pre-boring Rig

Ÿ   H-pile works

Ÿ   Tower crane construction

Ÿ   Erection of Welfare Shelter

Ÿ   Underground drainage works

Ÿ   Column works

Ÿ   Weighbridge works

Ÿ   Prototype ¡§A¡¨ Construction works

Ÿ   Project Signboard works

Ÿ   Mock Up Curtain Wall works

Ÿ   Pile Cap construction

Ÿ   Bored Pile works

 

2.5                       Summary of Environmental Submissions

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

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

Ÿ   Landscape Plan

Ÿ   Topsoil Management Plan

Ÿ   Environmental Monitoring and Audit Programme

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

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

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

Ÿ   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

3 Mar 2014

28 Feb 2019

No.: W5/1I389

28 Mar 2014

31 Mar 2019

No.: W5/1I390

19 June 2014

31 Mar 2019

No. WT00023063-2015

18 Dec 2015

31 Mar 2019.

No.: W5/1I392

28 Mar 2014

31 Mar 2019

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7019105

8 Jan 2014

Till Contract ends

5

Construction Noise Permit

GW-RN0738-15

18 Nov 2015

8 May 2016

GW-RN0760-15

26 Nov 2015

27 Feb 2016

GW-RN0761-15

28 Nov 2015

27 Feb 2016

GW-RN0795-15

7 Dec 2015

6 Jun 2016

GW-RN0838-15

24-Dec-2015

23-Feb-2016

GW-RN0875-15

24-Dec-2015

23-Feb-2016

GW-RN0893-15

01-Jan-2016

27-Jun-2016

GW-RN0057-16

28-Feb-2016

27-May-2016

GW-RN0059-16

24-Feb-2016

23-Apr-2016

GW-RN0067-16

28-Feb-2016

27-May-2016

GW-RN0068-16

23-Feb-2016

22-Apr-2016

GW-RN0071-16

02-Feb-16

31-Jul-2016

GW-RN0077-16

07-Feb-2016

06-Aug-2016

Contract 3

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 362101

17 Jul 2013

Till Contract ends

2

Chemical Waste Producer Registration

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

 

7 Oct 2013

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.:WT00016832 ¡V 2013

28 Aug 13

31 Aug 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017914

2 Aug 13

Till Contract ends

5

Construction Noise Permit

GW-RN0495-15

12 Aug 2015

11 Feb 2016

GW-RN0497-15

14 Aug 2015

13 Feb 2016

GW-RN0525-15

29 Aug 2015

13 Feb 2016

GW-RN0542-15

1 Sep 2015

25 Feb 2016

GW-RN0608-15

28 Sep 2015

29 Feb 2016

GW-RN0633-15

15 Oct 2015

29 Feb 2016

GW-RN0655-15

1 Dec 2015

29 Feb 2016

GW-RN0677-15

26 Oct 2015

29 Feb 2016

GW-RN0699-15

10 Nov 2015

27 Feb 2016

GW-RN0695-15

29 Nov 2015

28 Feb 2016

GW-RN0712-15

16 Nov 2015

29 Feb 2016

GW-RN0736-15

24 Nov 2015

29 Feb 2016

GW-RN0765-15

1 Dec 2015

27 Feb 2016

GW-RN0812-15

20 Dec 2015

29 Feb 2016

GW-RN0837-15

23 Dec 2015

29 Feb 2016

GW-RN0892-15

9 Jan 2016

8 July 2016

GW-RN0894-15

5 Jan 2016

27 Feb 2016

GW-RN0001-16

8 Jan 2016

27 Feb 2016

 

 

GW-RN0049-16

26 Jan 2016

29 Feb 2016

GW-RN0056-16

2 Feb 2016

18 Mar 2016

GW-RN0060-16

1 Feb 2016

30 Jun 2016

GW-RN0064-16

16 Feb 2016

13 Aug 2016

GW-RN0086-16

16 Feb 2016

7 May 2016

GW-RN0094-16

6 Mar 2016

22 May 2016

GW-RN0096-16

6 Mar 2016

12 Jun 2016

GW-RN0097-16

1 Mar 2016

17 Jun 2016

GW-RN0098-16

1 Mar 2016

4 Sep 2016

GW-RN0111-16

1 Mar 2016

30 Apr 2016

GW-RN0113-16

25 Feb 2016

24 Aug 2016

GW-RN0115-16

1 Mar 2016

7 May 2016

GW-RN0139-16

2 Mar 2016

24 Aug 2016

GW-RN0140-16

2 Mar 2016

24 Aug 2016

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

Application is processing by EPD

5

Construction Noise Permit

GW-RN0681-15

26 Oct 2015

25 Apr 2016

6

Construction Noise Permit

GW-RN0683-15

26 Oct 2015

25 Apr 2016

Contract SS C505

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390974

13 Jul 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

16 Sep 2015

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00022774-2015

17 Nov 2015

30 Nov 2020

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022831

23 Jul 2015

Till the end of Contract

5

Construction Noise Permit

PP-RN0027-15

5 Oct 2015

2 Apr 2016

PP-RN0002-16

23 Jan 2016

22 Mar 2016

GW-RN0023-16

23 Jan 2016

22 Mar 2016

Contract 7

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 397015

21 Dec 2015

Till the end of Contract

2

Chemical Waste Producer Registration

Application is processing by EPD

3

Water Pollution Control Ordinance - Discharge License

Application is processing by EPD

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024129

21 Jan 2016

Till the end of Contract


3     Summary of Impact Monitoring Requirements

3.1                       General

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

 

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

 

3.2                       Monitoring Parameters

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

                     Air quality;

                     Construction noise; and

                     Water quality

 

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

Table 3-1         Summary of EM&A Requirements

Environmental Issue

Parameters

Air Quality

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

Ÿ  24-hour TSP by High Volume Air Sampler.

Noise

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

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

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

Water Quality

In-situ Measurements

Ÿ  Dissolved Oxygen Concentration (mg/L);

Ÿ  Dissolved Oxygen Saturation (% );

Ÿ  Turbidity (NTU);

Ÿ  pH unit;

Ÿ  Water depth (m); and

Ÿ  Temperature (¢J).

Laboratory Analysis

Ÿ  Suspended Solids (mg/L)

 

3.3                       Monitoring Locations

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

Table 3-2        Impact Monitoring Stations - Air Quality

Station ID

Description

Works Area

Related to the Work Contract

AM1b^

Open area at Tsung Yuen Ha Village

BCP

SS C505

Contract 5

Contract 7

AM2

Village House near Lin Ma Hang Road

LMH to Frontier Closed Area

Contract 5

Contract 6

AM3

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

LMH to Frontier Closed Area

Contract 5

Contract 6

AM4b^

House no. 10B1 Nga Yiu Ha Village

LMH to Frontier Closed Area

Contract 6

AM5a^

Ping Yeung Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM6

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM7b@

Loi Tung Village House

Sha Tau Kok Road

Contract 2

Contract 6

AM8

Po Kat Tsai Village No. 4

Po Kat Tsai

Contract 2

AM9b#

Nam Wa Po Village House No. 80

Fanling

Contract 3

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

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

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

^ proposal for change of monitoring location are subject to approve by EPD.

 

Table 3-3        Impact Monitoring Stations - Construction Noise

Station ID

Description

Works Area

Related to the Work Contract

NM1

Tsung Yuen Ha Village House No. 63

BCP

SS C505

Contract 5

Contract 7

NM2

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 5,

Contract 6

NM3

Ping Yeung Village House (facade facing northeast)

Ping Yeung to Wo Keng Shan

Contract 6

NM4

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

NM5

Village House, Loi Tung

Sha Tau Kok Road

Contract 2,

Contract 6

NM6

Tai Tong Wu Village House 2

Sha Tau Kok Road

Contract 2,

Contract 6

NM7

Po Kat Tsai Village

Po Kat Tsai

Contract 2

NM8

Village House, Tong Hang

Fanling

Contract 2

Contract 3

NM9

Village House, Kiu Tau Village

Fanling

Contract 3

NM10

Nam Wa Po Village House No. 80

Fanling

Contract 3

 

Table 3-4        Impact Monitoring Stations - Water Quality

Station ID

Description

Coordinates of Designated / Alternative Location

Nature of the location

Related to the Work Contract

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

SS C505

Contract 5

Contract 6

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

SS C505

Contract 5

Contract 6

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at downstream 81m of the designated location

Contract 6

WM2A- Control

Upstream of River Ganges

835 270

844 243

Alternative location located at upstream 78m 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

WM3

Downstream of River Indus

836 324

842 407

NA

Contract 2

Contract 6

WM3- Control

Upstream of River Indus

836 763

842 400

Alternative location located at downstream 26m of the designated location

Contract 2

Contract 6

WM4

Downstream of Ma Wat Channel

833 850

838 338

Alternative location located at upstream 11m of the designated location

Contract 2

Contract 3

WM4¡V Control A

Kau Lung Hang Stream

834 028

837 695

Alternative location located at downstream 28m of the designated location

Contract 2

Contract 3

WM4¡V Control B

Upstream of Ma Wat Channel

833760

837395

Alternative location located at upstream 15m of the designated location

Contract 2

Contract 3

 

3.4                       Monitoring Frequency and Period

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

 

Air Quality Monitoring

3.4.1                 Frequency of impact air quality monitoring is as follows:

Ÿ   1-hour TSP

3 times every six days during course of works

Ÿ   24-hour TSP

Once every 6 days during course of works.

 

Noise Monitoring

3.4.2                 One set of Leq(30min) as 6 consecutive Leq(5min) between 0700-1900 hours on normal weekdays and once every week during course of works.  If construction work necessary to carry out at other time periods, i.e. restricted time period (19:00 to 07:00 the next morning and whole day on public holidays) (hereinafter referred as ¡§the restricted hours¡¨), 3 consecutive Leq(5min) measurement will depended CNP requirements to undertake.  Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

 

Water Quality Monitoring

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

 

3.5                       Monitoring Equipment

Air Quality Monitoring

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

 

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

 

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

Table 3-5         Air Quality Monitoring Equipment

Equipment

Model

24-Hr TSP

High Volume Air Sampler

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

Calibration Kit

TISCH Model TE-5025A*

1-Hour TSP

Portable Dust Meter

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

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

 

Wind Data Monitoring Equipment

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

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

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

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

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

 

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

 

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

 

Noise Monitoring

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

 

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


Table 3-6    Construction Noise Monitoring Equipment

Equipment

Model

Integrating Sound Level Meter

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

Calibrator

B&K Type 4231* or Cesva CB-5* or Rion NC-74*

Portable Wind Speed Indicator

Testo Anemometer

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

 

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

 

Water Quality Monitoring

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

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

   a temperature of between 0 and 45 degree Celsius.

 

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

 

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

 

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

 

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

 

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

 

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

 

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

Table 3-7         Water Quality Monitoring Equipment

Equipment

Model

Water Depth Detector

Eagle Sonar or tape measures

Water Sampler

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

Thermometer & DO meter

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

pH meter

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

Turbidimeter

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

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

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

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

 

3.6                       Monitoring Methodology

1-hour TSP Monitoring

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

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

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

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

 

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

 

24-hour TSP Monitoring

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

(a.)         An anodized aluminum shelter;

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

(c.)         A blower motor assembly;    

(d.)        A continuous flow/pressure recorder;

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

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

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

 

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

 

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

 

Noise Monitoring

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

 

3.6.7                 During the monitoring, all noise measurements would be performed with the meter set to FAST response and on the A-weighted equivalent continuous sound pressure level (Leq).  Leq(30min) in six consecutive Leq(5min) measurements will use as the monitoring parameter for the time period between 0700-1900 hours on weekdays; and also Leq(15min) in three consecutive Leq(5min) measurements would be used as monitoring parameter for other time periods (e.g. during restricted hours), if necessary.

 

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

 

Water Quality

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

 

Sampling Procedure

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

 

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

 

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

 

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

 

In-situ Measurement

3.6.14             YSI PRO20 Handheld Dissolved Oxygen Instrument or YSI Professional DSS is used for water in-situ measures, which automates the measurements and data logging of temperature, dissolved oxygen and dissolved oxygen saturation. 

 

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

 

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

 

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

 

Laboratory Analysis

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

 

3.7                       Equipment Calibration

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

 

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

 

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

 

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

 

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

 

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

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

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

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

AM1b

265

143

500

260

AM2

268

149

AM3

269

145

AM4b

267

148

AM5a

268

143

AM6

269

148

AM7b

275

156

AM8

269

144

AM9b

271

151

 

Table 3-9         Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

NM1, NM2, NM3, NM4, NM5, NM6, NM7, NM8, NM9, NM10

When one or more documented complaints are received

75 dB(A)Note 1 & Note 2

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

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

 

Table 3-10       Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

WM1

WM2A

WM2B

WM3

WM4

DO (mg/L)

Action Level

(*)4.23

(**)4.00

(*)4.74

(**)4.00

(*)4.14

Limit Level

(#)4.19

(**)4.00

(#)4.60

(**)4.00

(#)4.08

Turbidity (NTU)

Action Level

51.3

24.9

11.4

13.4

35.2

AND  120% of upstream control station of the same day

Limit Level

67.6

33.8

12.3

14.0

38.4

AND  130% of upstream control station of the same day

SS (mg/L)

Action Level

54.5

14.6

11.8

12.6

39.4

AND  120% of upstream control station of the same day

Limit Level

64.9

17.3

12.4

12.9

45.5

AND  130% of upstream control station of the same day

Remarks:

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

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

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

 

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

 

3.9                       Data Management and Data QA/QC Control

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

 

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


4     Air Quality Monitoring

4.1                       General

4.1.1                 In the Reporting Period, construction works under the project have been commenced in Contracts 2, 3, 5, 6, 7 and Contract SS C505 and air quality monitoring was performed at all designated locations.

 

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

 

4.2                       Air Quality Monitoring Results in Reporting Month

4.2.1                 In the Reporting Period, a total of 150 events of 1-hour TSP and 51 events 24-hours TSP monitoring were carried out and the monitoring results are summarized in Tables 4-1 to 4-9.   The detailed 24-hour TSP monitoring data are presented in Appendix I and the relevant graphical plots are shown in Appendix J.

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

3-Feb-16#

33

3-Feb-16

10:02

64

49

52

5-Feb-16

54

6-Feb-16

9:00

89

96

110

11-Feb-16

42

12-Feb-16

10:06

62

52

47

17-Feb-16

46

18-Feb-16

11:00

137

141

123

23-Feb-16

29

24-Feb-16

10:12

88

93

74

29-Feb-16

71

 

Average

(Range)

46

 (29 ¡V 71)

Average

(Range)

85

(47 ¡V 141)

# Power failure of HVS on 2 Feb 2016 and the monitoring was rescheduled to 3 Feb 2016.

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

2-Feb-16

21

3-Feb-16

9:52

84

56

50

5-Feb-16

63

6-Feb-16

9:42

113

117

132

11-Feb-16

58

12-Feb-16

9:53

89

85

97

17-Feb-16

62

18-Feb-16

11:04

128

132

114

23-Feb-16

58

24-Feb-16

10:07

66

71

52

29-Feb-16

66

 

Average

(Range)

55

 (21 ¡V 66)

Average

(Range)

92

(50 ¡V 132)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

2-Feb-16

57

3-Feb-16

9:43

89

64

56

5-Feb-16

140

6-Feb-16

13:19

91

88

95

11-Feb-16

77

12-Feb-16

9:42

67

86

82

17-Feb-16

123

18-Feb-16

11:12

121

126

107

23-Feb-16

69

24-Feb-16

10:02

99

104

85

29-Feb-16

132

 

Average

(Range)

100

 (69 ¡V 140)

Average

(Range)

91

(56 ¡V 126)

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Feb-16

49

1-Feb-16

10:11

89

65

59

11-Feb-16

80

6-Feb-16

9:26

81

63

41

16-Feb-16

56

12-Feb-16

10:01

64

56

39

22-Feb-16

131

17-Feb-16

9:58

66

76

85

27-Feb-16

47

23-Feb-16

10:37

132

137

118

 

29-Feb-16

10:30

82

86

68

Average

(Range)

73

(49 ¡V 131)

Average

(Range)

78

(39 ¡V 137)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Feb-16

55

1-Feb-16

10:07

80

56

50

11-Feb-16

78

6-Feb-16

9:19

73

54

33

16-Feb-16

56

12-Feb-16

9:00

64

52

45

22-Feb-16

79

17-Feb-16

9:51

73

82

91

27-Feb-16

82

23-Feb-16

10:30

121

126

107

 

29-Feb-16

10:13

58

62

44

Average

(Range)

70

(55 ¡V 782)

Average

(Range)

71

(33 ¡V 126)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

5-Feb-16

88

1-Feb-16

9:58

84

54

43

11-Feb-16

96

6-Feb-16

9:07

68

50

41

16-Feb-16

69

12-Feb-16

9:32

51

54

64

22-Feb-16

109

17-Feb-16

9:40

73

82

91

27-Feb-16

111

23-Feb-16

10:21

110

115

96

 

29-Feb-16

10:35

65

69

50

Average

(Range)

75

(88 ¡V 111)

Average

(Range)

70

(41 ¡V 115)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

2-Feb-16

26

1-Feb-16

9:12

27

22

20

5-Feb-16

70

6-Feb-16

9:11

135

127

97

11-Feb-16

50

12-Feb-16

9:20

159

97

64

17-Feb-16

47

17-Feb-16

9:23

97

92

108

23-Feb-16

26

23-Feb-16

9:19

53

28

46

29-Feb-16

124

29-Feb-16

9:22

138

163

169

Average

(Range)

57

(26 ¡V 124)

Average

(Range)

91

(20 ¡V 169)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

2-Feb-16

22

1-Feb-16

13:06

27

22

19

5-Feb-16

28

6-Feb-16

13:30

118

85

79

11-Feb-16

24

12-Feb-16

13:08

165

144

159

17-Feb-16

36

17-Feb-16

13:13

79

90

72

23-Feb-16

28

24-Feb-16

9:03

36

31

37

29-Feb-16

68

29-Feb-16

13:06

134

117

129

Average

(Range)

34

(22 ¡V 68)

Average

(Range)

89

(19 ¡V 165)

 

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

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st reading

2nd reading

3rd reading

2-Feb-16

28

3-Feb-16

9:02

48

59

75

5-Feb-16

48

5-Feb-16

14:31

103

84

87

11-Feb-16

90

12-Feb-16

9:21

68

49

46

17-Feb-16

74

18-Feb-16

9:20

153

145

145

23-Feb-16

30

23-Feb-16

13:06

48

55

45

29-Feb-16

71

 

Average

(Range)

57

(28 ¡V 90)

Average

(Range)

81

(45 ¡V 153)

 

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

 

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

 


 

5     Construction Noise Monitoring

5.1                       General

5.1.1                 In the Reporting Period, construction works under the project have been commenced in Contracts 2, 3, 5, 6, 7 and Contract SS C505 and noise monitoring was performed at all designated locations.

 

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

 

5.2                       Noise Monitoring Results in Reporting Month

5.2.1                 In the Reporting Period, a total of 55 event noise measurements were carried out at the designated locations.  The sound level meter was set in 1m from the exterior of the building façade including noise monitoring locations NM1, NM2, 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 was performed at NM10 and façade correction (+3 dB(A)) has added according to the requirement in this month.  The noise monitoring results at the designated locations are summarized in Tables 5-1 and 5-2.  The detailed noise monitoring data are presented in Appendix I and the relevant graphical plots are shown in Appendix J.

Table 5-1         Summary of Construction Noise Monitoring Results

Construction Noise Level (Leq30min), dB(A)

Date

NM1

NM2

NM8

NM9

NM10(*)

3-Feb-16

69

67

63

59

64

6-Feb-16

57

62

52

55

52

12-Feb-16

52

53

58

62

63

18-Feb-16

57

56

59

64

68

24-Feb-16

67

71

58

65

68

Limit Level

75 dB(A)

Remarks

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

i      bold and underlined indicated Limit Level exceedance.

Table 5-2         Summary of Construction Noise Monitoring Results

Construction Noise Level (Leq30min), dB(A)

 

Date

NM3

NM4

NM5

NM6

NM7

 

1-Feb-16

59

67

57

56

62

 

6-Feb-16

59

63

57

63

64

 

12-Feb-16

53

61

51

54

61

 

17-Feb-16

56

67

58

57

60

 

23-Feb-16

60

66

62

55

65

 

29-Feb-16

58

68

59

58

62

 

Limit Level

75 dB(A)

 

 

54

 

5.2.1                 As shown in Tables 5-1 and 5-2, the noise level measured at all designated monitoring locations were below 75dB(A).  However, one (1) noise complaint was received by 1823 for Contract 3 on 18 February 2016 which triggered the Action Level (AL).  Investigation report for the complaint was conducted by ET and the result revealed that the complaint was not related to the works under Contract 3.

 


 

6     Water Quality Monitoring

6.1                       General

6.1.1                 In the Reporting Period, construction works under the project has been commenced in Contracts 2, 3, 5, 6, 7 and Contract SS C505 and water quality monitoring was performed at all designated locations.  The water quality monitoring schedule is presented in Appendix H.  The monitoring results are summarized in the following sub-sections.

 

6.2                       Results of Water Quality Monitoring

6.2.1                 In the Reporting Period, a total of twelve (12) sampling days water quality was scheduled to carry out for all designated locations with their control stations.  Since water quality exceedance were recorded at WM2B and WM4, four (4) and one (1) extra days water quality monitoring were conducted at WM2B and WM4 respectively and their control stations in accordance with ¡§Event and Action Plan¡¨.

 

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

1-Feb-16

11.1

11.6

10.4

30.7

18.3

16.5

17.0

12.0

15.0

3-Feb-16

10.9

13.6

11.6

25.0

12.3

15.9

18.0

9.5

10.5

5-Feb-16

14.6

12.6

10.3

7.8

6.0

15.6

6.0

5.0

24.0

11-Feb-16

11.4

11.6

11.1

8.2

5.1

8.4

9.5

4.5

8.0

13-Feb-16

10.7

11.9

10.8

7.8

3.4

5.6

10.5

<2

8.5

16-Feb-16

13.7

14.9

13.7

10.6

5.7

20.3

9.5

3.0

31.5

18-Feb-16

7.3

7.7

6.2

21.1

6.0

30.1

17.0

<2

45.0

20-Feb-16

8.8

9.4

7.3

14.0

6.4

3.1

11.5

2.0

19.0

22-Feb-16

7.8

8.8

7.1

20.0

6.4

16.8

30.0

4.0

18.5

24-Feb-16

9.1

9.3

9.0

7.2

4.5

9.1

14.0

3.0

18.0

26-Feb-16

8.7

9.4

8.7

149.5

5.3

7.7

138.0

4.5

9.5

27-Feb-16#

--

--

--

12.3

16.6

11.3

22.0

10.0

15.0

29-Feb-16

8.8

9.2

6.1

8.6

5.1

7.5

11.5

2.5

10.0

Remarks:

(i)            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 5, 6 and SS C505

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM1

WM1- Control

WM1

WM1- Control

WM1

WM1- Control

1-Feb-16

12.3

11.8

40.7

30.4

28.5

25.0

3-Feb-16

11.7

12.7

37.6

13.8

41.5

15.5

5-Feb-16

11.5

16.1

18.7

21.6

35.0

11.0

11-Feb-16

11.9

11.1

46.9

5.0

40.0

2.0

13-Feb-16

12.0

12.0

41.0

8.1

44.5

6.0

16-Feb-16

11.8

12.7

19.4

20.3

19.0

47.0

18-Feb-16

8.4

8.3

42.2

7.8

39.0

11.5

20-Feb-16

9.4

9.9

18.3

14.2

50.0

30.5

22-Feb-16

9.1

9.3

32.3

7.8

35.0

5.5

24-Feb-16

9.2

9.1

49.6

8.4

41.0

12.0

26-Feb-16

9.5

10.4

17.0

7.3

15.0

6.0

29-Feb-16

9.3

10.5

49.9

10.2

51.5

11.0

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

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM2A

WM2A- C

WM2B

WM2B- C

WM2A

WM2A- C

WM2B

WM2B- C

WM2A

WM2A- C

WM2B

WM2B- C

1-Feb-16#

--

--

--

--

--

--

89.7

9.5

--

--

64.0

12.0

2-Feb-16

12.0

13.3

12.8

11.1

19.8

5.3

233.0

3.5

11.5

<2

269.5

2.0

3-Feb-16#

--

--

--

--

--

--

10.2

8.7

--

--

7.0

6.0

4-Feb-16

9.2

9.2

9.9

9.3

17.9

42.0

10.8

5.1

14.5

21.5

11.5

11.0

6-Feb-16

14.5

15.2

13.4

10.9

6.0

7.2

5.2

3.2

3.0

3.0

3.0

<2

11-Feb-16

11.9

11.6

11.9

10.7

5.5

5.0

3.8

4.1

4.5

2.0

2.0

5.0

13-Feb-16

12.2

12.1

11.4

12.4

6.0

7.1

3.6

9.6

7.5

4.0

2.5

11.5

15-Feb-16

11.8

11.2

12.0

10.8

5.9

6.7

4.5

3.3

7.5

4.0

4.5

3.0

17-Feb-16

9.0

8.9

7.5

7.3

4.8

5.7

4.2

3.2

3.0

2.0

2.0

<2

19-Feb-16

9.4

9.1

9.7

8.3

23.0

12.7

10.4

12.2

14.5

10.0

9.0

37.0

23-Feb-16

7.9

8.7

10.1

9.5

8.6

7.3

25.7

5.9

4.5

3.0

11.0

9.5

24-Feb-16#

--

--

--

--

--

--

10.5

4.9

--

--

7.0

<2

25-Feb-16

9.9

9.8

10.2

8.2

13.5

7.4

95.5

2.5

8.0

2.0

80.5

<2

26-Feb-16#

--

--

--

--

--

--

2.9

6.2

--

--

6.0

6.0

27-Feb-16

10.2

9.3

10.7

9.8

22.2

6.4

10.7

4.1

12.0

<2

9.0

<2

29-Feb-16

9.6

9.5

9.3

8.3

10.4

7.6

47.4

5.9

11.5

3.5

39.0

3.5

 

Remarks:

(ii)          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 6-4         Water Quality Monitoring Results Associated Contracts 2 and 6

Date

Dissolved Oxygen

(mg/L)

Turbidity

(NTU)

Suspended Solids

(mg/L)

WM3

WM3- Control

WM3

WM3- Control

WM3

WM3- Control

2-Feb-16

11.8

12.1

11.2

14.7

6.0

31.0

4-Feb-16

10.2

11.7

16.2

22.6

14.0

21.5

6-Feb-16

11.6

10.3

8.0

15.5

10.0

14.0

11-Feb-16

10.7

11.1

4.2

5.0

5.5

10.5

13-Feb-16

11.8

12.8

8.2

22.6

<2

19.5

15-Feb-16

11.0

10.2

10.3

12.3

7.5

22.5

17-Feb-16

7.3

7.5

5.1

10.5

10.0

41.5

19-Feb-16

9.6

9.3

25.0

28.0

20.0

43.5

23-Feb-16

8.6

9.0

13.9

34.0

12.5

26.0

25-Feb-16

9.6

9.8

46.5

334.0

34.5

197.0

27-Feb-16

10.8

9.5

9.0

17.4

7.0

25.5

29-Feb-16

9.0

8.9

16.0

17.2

16.5

33.0

 

Table 6-5      Breaches of Water Quality Monitoring Criteria in Reporting Period

Location

Dissolved Oxygen

Turbidity

Suspended Solids

Total Exceedance

Action

Limit

Action

Limit

Action

Limit

Action

Limit

WM1

0

0

0

0

0

0

0

0

WM2A

0

0

0

0

0

0

0

0

WM2B

0

0

0

5

0

4

0

9

WM3

0

0

0

0

0

0

0

0

WM4

0

0

0

1

0

1

0

2

No of Exceedance

0

0

0

6

0

5

0

11

 

6.2.3                 In this Reporting Period, a total of eleven (11) Limit Levels (LL) exceedances, namely six (6) LL exceedances of turbidity and five (5) LL exceedances of Suspended Solids were recorded for the Project.  Specifically, there were five (5) LL of Turbidity and four (4) LL Level of Suspended Solids recorded at WM2B and one (1) LL of Turbidity and one (1) LL of Suspended Solids recorded at WM4.

 

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

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

Exceedance Day

Location

Exceeded Parameter

Cause of Water Quality Exceedance

1-Feb-16

WM2B

NTU & SS

Soil erosion and generation of run-off from the excavation area at North Portal was happened on 1 and 2 February 2016 during rainstorm.  The exceedances were related to Contract 6.  The Contractor had enhanced the mitigation measures such as covering the open slope as far as practicable to minimize muddy runoff and construction of sump pit to collect the site runoff.  The construction of 2 new sump pits under the slopes and covering of open slopes were completed on 5 February 2016.

2-Feb-16

WM2B

NTU & SS

23-Feb-16

WM2B

NTU

The exceedances were due to the shallow water and the disturbance of sediment at river bed and unlikely related to the works under Contract 6.

25-Feb-16

WM2B

NTU & SS

The exceedances were related to the external turbid water emerged from the outlet pipe and unlikely due to the works under Contract 6.

26-Feb-16

WM4

NTU & SS

The Contractor of Contract 3 was conducted the removal work of the supporting of Bridge E on 26 February 2016.  The removal of broken concrete by an excavator stirred up the river bed.  The exceedances were related to Contract 3.  The Contractor explained that in order to reinstate the river, this process is unavoidable. Since the river is fairly shallow in the dry season and working in the river inevitably disturbed the river bed, very few could be done to get rid of the impact. As to minimize the impact, the Contractor was managed to remove broken concrete in 3 days (25 to 27 February 2016).

The construction activities carried out by Contract 2 was away from the river course and no discharge was made on 26 February 2016, it is considered that the exceedances were not related to Contract 2.

29-Feb-16

WM2B

NTU & SS

The exceedances were due to the shallow water and the disturbance of sediment at river bed and unlikely related to the works under Contract 6.


 

7     Waste Management

7.1                       General Waste Management

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

 

7.2                       Records of Waste Quantities

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

l Construction & Demolition (C&D) Material;

l Chemical Waste;

l General Refuse; and

l Excavated Soil.

 

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

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

Type of Waste

Contract 2

Contract 3

Contract 5

Contract 6

Contract 7

Contract SS C505

Total Quantity

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

C&D Materials (Inert)

(in '000m3)

55.6715

--

1.225

--

0

--

74.418

--

0.16

--

0.858

--

132.3325

Reused in this Contract (Inert)

(in '000 m3)

1.0145

--

0.020

--

0

--

8.785

--

0

--

0

--

9.8195

Reused in other Contracts/ Projects (Inert)

(in '000 m3)

38.3484

C6/ NENT# & other projects approved by the ER

0

--

0

--

39.85

C5 & other projects approved by the ER

0

--

0

--

78.1984

Disposal as Public Fill (Inert)

(in '000 m3)

16.3085

Tuen Mun 38

1.205

Tuen Mun 38

0

--

25.783

Tuen Mun 38

0.16

Tuen Mun 38

0.858

TKO 137

44.3145

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

 

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

Type of Waste

Contract 2

Contract 3

Contract 5

Contract 6

Contract 7

Contract SS C505

Total

Quantity

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Qty.

Disposal location

Recycled Metal (¡¥000kg) #

0

-

0

-

0

--

0

--

0

--

0.0004

Licensed collector

0.0004

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

0

-

0

-

0

--

0.097

Licensed collector

0

--

0.0186

Licensed collector

0.1156

Recycled Plastic (¡¥000kg) #

0

--

0

-

0

--

0

--

0

--

0

--

0

Chemical Wastes (¡¥000kg) #

0.8800

Licensed collector

0

-

0

--

0

--

0

--

0

--

0.88

General Refuses (¡¥000m3)

0.1089

NENT

0.110

NENT

0.045

NENT

0.339

NENT

0

--

0.21

NENT

0.8129

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


8     Site Inspection

8.1                       requirements

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

 

8.2                       Findings / Deficiencies During the Reporting Month

Contract 2

8.2.1                 In the Reporting Period, joint site inspection for Contract 2 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 5, 12, 19 and 26 February 2016.  No non-compliance was noted.

 

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

Table 8-1           Site Observations for Contract 2

Date

Findings / Deficiencies

Follow-Up Status

5 February 2016

Ÿ  Water spraying should be provided for breaking and loading activities to reduce dust generation. (South Portal)

Ÿ  Water spraying provided to dusty operations, including breaking.

Ÿ  Stagnant water cumulated inside the waste skip was observed. The contractor should remove the ponding water to prevent mosquito breeding. (Mid-Vent)

Ÿ  Frequency of removal of stagnant water and rubbish increased.

12 February 2016

Ÿ  The Contractor was reminded to provide water spraying or relevant measures for waste storage tank to prevent fugitive dust. (Mid-Vent)

Ÿ  Not required for reminder.

19 February 2016

Ÿ  Anti mosquito inspection checklist should be updated correctly every week.  (South Portal)

Ÿ  Not required for reminder.

26 February 2016

Ÿ  No adverse environmental were observed.

NA

 

Contract 3

8.2.3                 In the Reporting Period, joint site inspection for Contract 3 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 1, 11, 17, 22 and 29 February 2016.  No non-compliance was noted.

 

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

Table 8-2           Site Observations for Contract 3

Date

Findings / Deficiencies

Follow-Up Status

1 February 2016

Ÿ  White smoke emission was observed from the generator at SA7, the Contractor should carry out mainenance for the generator.

Ÿ  The generator was removed from site for maintenance.

Ÿ  The Contractor should provide the Environmental Permit of the project at site exit SA 12 for public inspection.

Ÿ  Environmental permit was provided for easy public inspection.

Ÿ  Muddy runoff on site (Pier AA2) overflow into nearby channel was observed. The Contractor should take measures to aviod the muddy runoff disharge into the channel.

Ÿ  No muddy runoff from site was observed.

Ÿ  The Contractor should ensure the site exit SA18 and public access road free to soil and muddy water.

Ÿ  The site exit SA 18 and public access road was free of soil and muddy water.

11 February 2016

Ÿ  No adverse environmental were observed.

Ÿ  NA

17 February 2016

Ÿ  Plug for the drip tray is missing. The contractor should plug the drip tray to prevent waste oil inside drip tray spilt out. (Bridge J)

Ÿ  The drip tray under the generator at Bridge J was plugged

Ÿ  The contractor was reminded to provide regular checking or maintenance for the plant using on site to prevent dark / heavy smoke emission. (Bridge J)

Ÿ  Not required for reminder.

Ÿ  Mitigation measures should be provided for the stagnant water cumulated on site to prevent mosquito breeding. (General)

Ÿ  Not required for reminder.

22 February 2016

Ÿ  No adverse environmental were observed.

Ÿ  NA

29 February 2016

Ÿ  Smoke emission from a generator was observed at Bridge J, the Contractor should replace it or provide maintenance.

Ÿ  No dark smoke emission from the generator was observed.

Ÿ  The Contractor should ensure that the discharge water quality fulfill the requirment of discharge license and the discharge of turbid water should be avoided.

Ÿ  Not required for reminder.

Ÿ  In general, the Contractor was reminded to pay attention on the dust mitigation measures.

Ÿ  Not required for reminder.

 

Contract 5

8.2.5                 In the Reporting Period, joint site inspection for Contract 5 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 2, 11, 16 and 23 February 2016.  No non-compliance was noted.

 

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

Table 8-3           Site Observations for Contract 5

Date

Findings / Deficiencies

Follow-Up Status

2 February 2016

Ÿ  No adverse environmental were observed.

Ÿ  NA

11 February 2016

Ÿ  The Contractor should carry out dust mitigation for the stockpile at 1500 pipe to reduce dust generation.

Ÿ  Water spraying is provided to the stockpile at 1500 pipe.

16 February 2016

Ÿ  No adverse environmental were observed.

Ÿ  NA

23 February 2016

Ÿ  A tree without fencing was observed at BCP, it is reminded that tree protection zone should be provided.

Ÿ  Not required for reminder.

 

Contract 6

8.2.7                 In the Reporting Period, joint site inspection for Contract 6 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 4, 12, 18 and 25 February 2016.  No non-compliance was noted.

 

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

Table 8-4           Site Observations for Contract 6

Date

Findings / Deficiencies

Follow-Up Status

4 February 2016

Ÿ  Trees without proper protective measures were observed at North Portal, the Contractor should fence off the retained trees.

Ÿ  Plastic net has been erected to fence off the tree from works area.

Ÿ  Muddy trails at the site exit in SKT road were observed, the Contractor should modify the vehicle washing procedure and system. And the Contractor should ensure that all vehicles are washed the mud off before leaving the site.

Ÿ  Additional drainage trap has been constructed. Volume of pit has been increased. Water pump, sedimentation tank and sand bag bund have been provided as to collect water run-off.

Ÿ  Excavation works were observed at North Portal, the Contractor was reminded to cover the exposed slope and provide temporary drainage system. It is agreed that there measures should be provided by the CNY holiday.

Ÿ  Not required for reminder.

12 February 2016

Ÿ  No adverse environmental were observed.

NA

18 February 2016

Ÿ  The Contractor should erect the orange plastic net fencing and maintain the tree protection zone properly at Bridge D

Ÿ  Plastic net has been erected to separate trees from works area.

Ÿ  At Bridge D, stagnant water accumulated in drip tray was observed, the Contractor should drain away the stagnant water.

Ÿ  Stagnant water in drip tray has been removed.

Ÿ  Smoke emission from an excavator at Bridge D was observed, the Contractor should provide plant maintenance to prevent smoke emission.

Ÿ  Plant maintenance has been carried out.

Ÿ  Proper fencing has already been provided for the trees at Ng Chau Road, however warning sign is recommended to be provided to prevent damage from construction plant movement and works.

Ÿ  Not required for reminder.

Ÿ  The Contractor was reminded to provide temporary drainage for the works area with exposed surface at Ng Chau Road.

Ÿ  Not required for reminder.

25 February 2016

Ÿ  Muddy water accumulated at public access road at STK road was observed, the Contractor should ensure that no vehicle washing water run-off could occur and prevent muddy water entering public drain.

Ÿ  No muddy water accumulated at public access road at STK road was observed.

Ÿ  The Contractor should maintain and improve the cleanliness of the public footpath at WKS Road.

Ÿ  The condition of the public footpath at the site entrance has been improved.

Ÿ  The Contractor was reminded to provide high water jet for the vehicle washing system. (Location: Site entrance/exit at WKS Road).

Ÿ  Not required for reminder.

 

Contract SS C505

8.2.9                 In the Reporting Period, joint site inspection for Contract SS C505 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 3, 11, 17 and 24 February 2016.  No non-compliance was noted.

 

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

Table 8-5           Site Observations for Contract SS C505

Date

Findings / Deficiencies

Follow-Up Status

3 February 2016

Ÿ  NRMM label was missing for excavator at Portion 2. The Contractor should provide the exemption/approval label for the excavator under the NRMM regulation

Ÿ  Approval label was provided for the excavator.

Ÿ  Stagnant water stored at lifting eye of concrete blocks at Portion 2 was observed. The Contractor should take measures to avoid stagnant water being stored.

Ÿ  No stagnant water stored and the lifting eye was filled by sand.

Ÿ  Muddy sediment was observed at drainage channel at Portion 1. The Contractor should clear the sediment and ensure the channel function properly.

Ÿ  Removal of muddy sediment at the drainage channel was implemented.

11 February 2016

Ÿ  No adverse environmental were observed.

NA

17 February 2016

Ÿ  No adverse environmental were observed.

NA

24 February 2016

Ÿ  Muddy sediment was observed at the drainage channel near the wastewater discharge point at Portion 1. The Contractor should remove the sediment to maintain the performance of the channel.

Ÿ  The muddy sediment at the drainage channel was removed.

 

Contract 7

8.2.11             Although construction activities under Contract 7 have not yet commenced, site preparation work was conducted in the Reporting Period.  In the Reporting Period, two occasions of joint site inspection to evaluate the site environmental performance were carried out on 5 and 26 January 2016.  No non-compliance was noted.

 

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

Table 8-6           Site Observations for Contract 7

Date

Findings / Deficiencies

Follow-Up Status

16 February 2016

Ÿ  The Contractor should display the Environmental Permit (EP) at the site entrance/exit.

Ÿ  Environmental Permit (EP) is provided at the site entrance/exit

23 February 2016

Ÿ  Smoke emission from an excavator was observed at Gate 53A. The Contractor should provide maintenance for the construction plant to prevent smoke emission.

Ÿ  Maintenance of the excavator has been carried out

 

8.2.13             Overall, general housekeeping such as daily site tidiness and cleaniness should be maintained for all Contracts.  Furthermore, the Contractors were reminded to implement Waste Management Plan of the Project.

 

Other Contracts

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


 

9     Environmental Complaint and Non-Compliance

9.1                       Environmental Complaint, Summons and Prosecution

9.1.1                 In the Reporting Period, no summons and prosecution under the EM&A Programme was lodged for Contracts 2, 3, 5, 6, 7 and Contract SS C505.  However, three (3) documented environmental complaints were received for the Project.  Specifically, two (2) complaints were related to Contracts 6 regarding turbid water and soil/ debris brought by the dump trucks water on 22 and 23 February 2016 respectively. Besides, one (1) complaint was received for Contract 3 regarding construction noise issues on 18 February 2016. Follow up actions have been undertaking by the Contractor to resolve the deficiencies. Investigation report for complaint on 18 and 23 February 2016 had conducted by ET whereas 22 February 2016 was underway. 

 

9.1.2                 Upon receipt of the complaint, follow up action has been undertaken by both Contractor promptly to resolve the complaints and deficiencies.  During the complaint investigation work, the Contractor was co-operated with the ET in providing all the necessary information and assistance for completion of the investigation.  Follow up actions have been undertaking by the Contractor to resolve the deficiencies The details of complaint are listed below:-

 

Investigation Result for the Documented Complaint received via 1823 on 18 February 2016

9.1.3                 A complaint was received via 1823 on 18 February 2016 regarding construction noise generated from the construction of flyover near Yuen Leng Village of Kau Lung Hang. 

 

9.1.4                 The Contractor of Contract 3 (Chun Wo) was immediate liaised with the complainant on 19 February 2016. The complainant expressed that the construction activities carried out inside the Yuen Leng Village are close to her house which causing noise nuisance.  Since there are several concurrent projects undertaking near the complaint location, as further discussed with the complainant, it was figure out that the complained construction works in Yuen Leng Village was not within the scope of Contract 3.

 

9.1.5                 Joint site inspection among the RE, IEC, Contractor and ET was carried out on 22 February 2016 for the complaint investigation.  During the inspection, it was observed that the complaint location is located outside the site boundary of Contract 3.  There are several concurrent projects undertaking by other contractors, including the construction of flyover and road works which were not within the scope of Contract 3.  Therefore, it is considered that the complaint was not related to the works under Contract 3.

 

9.1.6                 As advised by Chun Wo, the complainant was understood that the concerned works were not related to Contract 3 and she will seek for appropriate Authority to follow up.

 

Investigation Result for the Documented Complaints received by EPD on 22 January 2016

9.1.7                 On 22 February 2016, EPD notified CCKJV that a complaint was received with respect to the turbid river water observed in Ng Tung River near Contract 6¡¦s site office.  Upon receipt of the complaint, EPD requested CCKJV to carry out self-checking of the wastewater treatment facility near Bridge A in order to fulfill the requirement of water discharge quality.

 

9.1.8                 During site inspection by the RE, IEC, Contractor and ET on 25 February 2016, turbid water was observed in Ng Tung River which behind the Contract 6¡¦s site office. Inspection was then carried out at the concerned construction site (Bridge A) and it was observed that the AquaSed (SH-06) which adjacent to the wheel washing machine at Bridge A was not functioning properly due to excessive cleaning of dump trucks. CCKJV was repeatedly advised to enhance the environmental performance and make sure all construction related activities are in compliance with the the relevant statutory and non-statutory requirements for environmental protection.  In response to this complaint, CCKJV agreed to immediate increase the desludging frequency of the AquaSed from three times per week to daily basis.

 

9.1.9                 Representatives of EPD was carried out site inspection accompanied with the RE and CCKJV on 1 March 2016.  The inspected area was in Bridge A and there were several comments raised out by EPD during the site inspection which are summarized as follows.

(a)           EPD expressed their concerns of soil and mud would be accumulated at the site exit of Wo Keng Shan Road by the dump trucks due to the wheel washing machine is far away from the site exit and also the site haul road is found muddy.  EPD advised that the entire wheel washing arrangement at Bridge A should be modified so as to improve the performance and prevent soil or mud from leaving on public road by vehicles from site. 

(b)          Desilting of temporary drainage adjacent to existing wheel washing facility should be performed more frequently.

(c)           Desilting of nullah which is connected to Ng Tung River should be performed more frequently.

(d)          EPD commented that the wastewater collection at sump pit, diversion and treatment arrangement should be strengthened in order to ensure the wastewater generated from the wheel washing activities treated in a more effective way.

(e)           Muddy water should be prevented from entering the drainage ditch at the Wo Keng Shan Park access.

9.1.10             Site inspection was carried out by the RE, IEC, Contractor and ET on 3 March 2016 to follow up the water discharge condition and improvement works conducted by CCKJV.  There was no turbid observed at Ng Tung River.  The observation of improvement works are presented in below.

(a)           A labor was deployed to wash the haul road and site exit of Bridge A, The site exit was kept clear of mud and soil and maintained wetted.

(b)          Sand bag barrier was provided to isolate the active construction area and the haul road.  The haul road was hard paved and kept clear of mud and soil.

(c)           The AquaSed (SH-06) was function properly and the effluent was visually clear after frequent desludging.

(d)          Desilting was carried out at the temporary drainage adjacent to existing wheel washing facility and the water quality in the temporary drainage was visually clear.

(e)           The water quality in the nullah after the wheel washing facility connected to Ng Tung River was visually clear.

 

9.1.11             CCKJV advised that muddy water cumulated at the drainage ditch at the Wo Keng Shan access will be cleaned up. As advised by CCKJV, self-checking of the wastewater treatment facility near Bridge A was conducted daily to ensure the discharge water fulfill the requirement of water discharge quality.  The result could be retrieved upon requested.  Further enhancement of the wheel washing arrangement of Bridge A, such as deploy of new washing bay, additional sedimentation tanks and WetSep and sump pit modification, are planned.  Those works are scheduled to be commenced on 10 Mar 2016 and will be completed by the end of March 2016. 

 

9.1.12             During site inspection on 3 March 2016, it is considered that the intermit remedial works carried out by CCKVJ is acceptable.  ET will keep monitor the enhancement works throughout March 2016.

 

Investigation Result for the Documented Complaints received by CEDD on 23 February 2016

9.1.13             On 23 February 2016, a complaint was received by CEDD regarding the soil/ debris brought by the dump trucks from the construction site running along Sha Tau Kok Road.  Besides, road cleaning by water bowser carried out by Food and Environmental Hygiene Department was not effectively remove the soil/ debris and the cumulated muddy water was splashed on the vehicle passing by the road. 

 

9.1.14             A joint site inspection among the RE, IEC, Contractor of Contract 6 (CCKJV) and ET was conducted on 25 February 2016 for the complaint investigation.  The inspected area included the concerned section of Sha Tau Kok Road and three (3) construction site exits maintained by CCKJV along Sha Tau Kok Road and Wo Keng Shan Road.

Condition of Sha Tau Kok Road (overview)

9.1.15             During the site inspection, it is observed that road surface of the concerned section of Sha Tau Kok Road was partially wetted after road cleaning by water bowser.  The road was kept clear of soil/ debris and no adverse environmental impact especially in road cleanliness was observed. As advised by the CCKJV, road cleaning by water bowser was carried out at least 3 times per day on Monday, Wednesday and Friday.

Condition of Construction Site Exit at Sha Tau Kok Road

9.1.16             During the site inspection, it was observed that manual wheel washing was provided at the site exit. As a mitigation measure, a cut-off ditch was constructed in order to divert the wastewater generated from wheel washing activity to the sump pit to undergo treatment.  However, the residual water from manual wheel washing was getting into the adjacent Sha Tau Kok Road.  There was a cut-off trench located right before the site exit to incept the residual water from manual wheel washing but the effectiveness is doubted.  During site inspection on 3 March 2016, the Contractor has enlarged the cut-off trench in order collect the wastewater as far as possible and the condition of the site exit was improved.  Moreover, the Contractor was advised that the manual wheel washing would only carry out within the site boundary to prevent wastewater getting into the public area.  As advised by the Contractor, this site exit will be dismantled in mid-March 2016 due to road diversion and ET will closely monitor the condition of the site exit in the subsequent site inspection.

Condition of Construction Site Exit at Wo Keng Shan Road (Works Area: Wo Keng Shan)

9.1.17             During the site inspection, it was observed a wheel washing facilities with associated AquaSed for wastewater treatment was deployed at the site exit. The condition of the site exit of and the connected Wo Keng Shan road was kept clear of soil/ debris and no adverse environmental impact especially in road cleanliness was observed. As advised by the CCKJV, road cleaning by water bowser was carried out at Ko Keng Shan least 3 times per day on Monday, Wednesday and Friday.

Condition of Construction Site Exit at Wo Keng Shan Road (Works Area: South Portal)

9.1.18             During the site inspection, it was observed an automatic wheel washing facilities with associated AquaSed for wastewater treatment was deployed at the site exit. The condition of the site exit of and the connected Wo Keng Shan road was kept clear of soil/ debris and no adverse environmental impact especially in road cleanliness was observed.  As advised by the CCKJV, road cleaning by water bowser was carried out at Ko Keng Shan least 3 times per day on Monday, Wednesday and Friday.

 

9.1.19             Since there are many other dump trucks out of the project running along the Sha Tau Kok Road and no observable oil/debris was brought out by any trucks of LT/HYW, particularly the Site Exit at Sha Tau Kok Road maintained by CCKJV, it is considered that the complaint is unlikely to the Project.  Nevertheless, CCKJV was advised to closely monitor the condition of the site exit and further improve the wheel washing facilities if necessary.

 

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

Table 9-1           Statistical Summary of Environmental Complaints

Reporting Period

Contract No

Environmental Complaint Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

31 Jan 2016

Contract 2

0

13

Ÿ  (6) Water Quality

Ÿ  (5) Construction Dust

Ÿ  (2) Noise

06 Nov 2013 ¡V

31 Jan 2016

Contract 3

0

3

Ÿ  (1) Construction Dust

Ÿ  (2) Water quality

16 Aug 2013 ¡V

31 Jan 2016

Contract 5

0

2

Ÿ  (2) Construction Dust

16 Aug 2013 ¡V

31 Jan 2016

Contract 6

0

3

Ÿ  (2) Water Quality

Ÿ  (1) Construction Dust

16 Aug 2013 ¡V

31 Jan 2016

SS C505

0

0

N/A

1 ¡V 29 Feb 2016

Contract 2

0

13

Ÿ  (6) Water Quality

Ÿ  (5) Construction Dust

Ÿ  (2) Noise

Contract 3

1

4

Ÿ  (1) Construction Dust

Ÿ  (2) Water quality

Ÿ  (1) Construction Noise

Contract 5

0

2

Ÿ  (2) Construction Dust

Contract 6

2

7

Ÿ  (6) Water Quality

Ÿ  (1) construction Dust

Contract 7

0

0

N/A

SS C505

0

0

N/A

 

Table 9-2           Statistical Summary of Environmental Summons

Reporting Period

Contract No

Environmental Summons Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

31 Jan 2016

Contract 2

0

0

NA

06 Nov 2013 ¡V

31 Jan 2016

Contract 3

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 5

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 6

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 7

0

0

NA

1 ¡V 29 Feb 2016

SS C505

0

0

NA

Contract 2

0

0

NA

Contract 3

0

0

NA

Contract 5

0

0

NA

Contract 6

0

0

NA

 

Table 9-3           Statistical Summary of Environmental Prosecution

Reporting Period

Contract No

Environmental Prosecution Statistics

Frequency

Cumulative

Complaint Nature

19 May 2014 ¡V

31 Jan 2016

Contract 2

0

0

NA

06 Nov 2013 ¡V

31 Jan 2016

Contract 3

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 5

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 6

0

0

NA

16 Aug 2013 ¡V

31 Jan 2016

Contract 7

0

0

NA

1 ¡V 29 Feb 2016

SS C505

0

0

NA

Contract 2

0

0

NA

Contract 3

0

0

NA

Contract 5

0

0

NA

Contract 6

0

0

NA

 

The Other Contracts

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

 


10 Implementation Status of Mitigation Measures

10.1                   General Requirements

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

 

10.1.2             All contracts under the Project shall be implementing the required environmental mitigation measures according to the approved EM&A Manual as subject to the site condition.  Environmental mitigation measures generally implemented by Contracts 2, 3, 5, 6, 7 and Contract SS C505 in this Reporting Period are summarized in Table 10-1. 

 

Table 10-1         Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Water Quality

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

Air Quality

¡P       Maintain damp / wet surface on access road

¡P       Low vehicular speed within the works areas.

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

¡P       Sprayed water during breaking works

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

Noise

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

¡P       Keep good maintenance of plants

¡P       Place noisy plants away from residence or school

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

¡P       Shut down the plants when not in used.

Waste and Chemical Management

¡P       On-site sorting prior to disposal

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

¡P       Predict required quantity of concrete accurately

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

General

¡P       The site was generally kept tidy and clean.

 

10.2                   Tentative Construction Activities in the Coming Month

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

Contract 2

Mid-Vent Portal

Ÿ    Tube excavation (NB+SB)

Ÿ    Adit invert slab

Ÿ    Building works foundation

North Portal

Ÿ    Retaining walls and slope stabilization

Ÿ    Northbound top heading excavation and tunnel enlargement

Ÿ    Southbound tunnel internal works and finishes

Ÿ    TBM excavation

South Portal

Ÿ    Southbound and Northbound D&B excavation

Ÿ    Building works superstructure

Admin Building

Ÿ    Building works foundation

 

Contract 3

Ÿ   Cable detection and trial trenches

Ÿ   Decking construction for Bridge E

Ÿ   Filling works at Tong Hang East

Ÿ   Storm Drains Laying

Ÿ   Noise barrier construction

Ÿ   Pier / Pier Table construction

Ÿ   Pile cap works

Ÿ   Portal beam erection

Ÿ   Pre-drilling works and piling works for viaduct

Ÿ   Retaining Wall construction

Ÿ   Road works at Fanling Highway

Ÿ   Slope works

Ÿ   Socket H-pile installation

Ÿ   Tree felling works

Ÿ   Utilities duct laying

Ÿ   Viaduct segment erection

Ÿ   Water works

Ÿ   Sewer works

Contract 5

Ÿ   Laying of rising main (VO61) at LMH road

Ÿ   Bituminous laying at L15 road and existing LMH road.

Ÿ   Brick laying at footpath of proposed LMH road

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

Ÿ   Construction drainage works at Depressed Road

Ÿ   Irrigation system at existing LMH Road

Ÿ   Installation of underground utilities at existing LMH road

Ÿ   Planting works at proposed & existing LMH road

Contract 6

Ÿ   Site Clearance

Ÿ   Slope Works

Ÿ   Site Accesses Construction

Ÿ   Ground Investigation Works

Ÿ   Soil Nail

Ÿ   Bored Piling

Ÿ   Pile cap construction

Ÿ   Road surface

Contract 7

Ÿ   Erection of Engineer¡¦s Site Office

Ÿ   Ground Investigation Works for Bridge ¡VE

Ÿ   Piling Works for Bridge B-D

Ÿ   Pile cap construction for Bridge C

Contract SS C505

Ÿ   General Site Setup

Ÿ   Building no. 5 and 9 construction

Ÿ   Assembly of Crawler Crane / Driling Rig / Pre-boring Rig

Ÿ   H-pile works

Ÿ   Tower crane construction

Ÿ   Erection of Welfare Shelter

Ÿ   Underground drainage works

Ÿ   Column works

Ÿ   Weighbridge works

Ÿ   Prototype ¡§A¡¨ Construction works

Ÿ   Project Signboard works

Ÿ   Mock Up Curtain Wall works

Ÿ   Pile Cap construction

Ÿ   Bored Pile works

 

10.3                   Key Issues for the Coming Month

10.3.1             Key issues to be considered in the coming month for Contracts 2, 3, 5, 6, 7 and SS C505 include:

Ÿ    Implementation of control measures for rainstorm;

Ÿ    Regular clearance of stagnant water during wet season;

Ÿ    Implementation of dust suppression measures at all times;

Ÿ    Potential wastewater quality impact due to surface runoff;

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

Ÿ    Disposal of empty engine oil containers within site area;

Ÿ    Ensure dust suppression measures are implemented properly;

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

Ÿ    Management of chemical wastes;

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

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

Ÿ    Implementation of construction noise preventative control measures

 

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


11 Conclusions and Recommendations

11.1                   Conclusions

11.1.1             This is the 31st monthly EM&A report presenting the monitoring results and inspection findings for the Reporting Period from 1 to 29 February 2016.

 

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

 

11.1.3             In the Reporting Period, no construction noise measurement results that exceeded the Limit Level were recorded.  However, one (1) noise complaint was received by 1823 for Contract 3 on 18 February 2016 which triggered the Action Level (AL).  Investigation report for the complaint was conducted by ET and the result revealed that the complaint was not related to the works under Contract 3.

 

11.1.4             For water quality monitoring, a total of eleven (11) Limit Level (LL)exceedances were recorded, namely six (6) LL exceedance of turbidity and five (5) LL exceedance of Suspended Solids for the Project.  Specifically, there were five (5) LL of Turbidity and four (4) LL Level of Suspended Solids recorded at WM2B and one (1) LL of Turbidity and one (1) LL of Suspended Solids recorded at WM4.  The investigations for the cause of exceedances have been conducted by the ET and the associated investigation reports were submitted to relevant parties

 

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

 

11.1.6             In this Reporting Period, three (3) documented environmental complaints were received for the Project. Specifically, two (2) complaints were related to Contracts 6 regarding turbid water and soil/ debris brought by the dump trucks water on 22 and 24 February 2016 respectively. Besides, one (1) complaint was related to Contract 3 regarding construction noise issues on 18 February 2016. Follow up actions have been undertaking by the Contractor to resolve the deficiencies. Investigation report for complaint on 18 and 24 February 2016 had conducted by ET whereas 22 February 2016 was underway. 

 

11.1.7             During the Reporting Period, weekly joint site inspection by the RE, IEC, ET with the relevant Main-contractor were carried out for Contracts 2, 3, 5, 6, 7 and SS C505 in accordance with the EM&A Manual stipulation.  No non-compliance observed during the site inspection. 

 

11.2                   Recommendations

11.2.1             In upcoming wet season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River or public area would be the key issue.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for Contract 6.

 

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

 

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

 

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