Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

14th Quarterly Environmental Monitoring & Audit Summary Report ¡V

(November 2016 to January 2017)

 

 

 

 

 

Prepared For

 

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

Quality Index

Date

Reference No.

Prepared By

Certified By

6 June 2017

TCS00694/13/600/R0999v2

Nicola Hon

(Environmental Consultant)

T.W. Tam

(Environmental Team Leader)

 

 

 

Version

Date

Description

1

      26 May 2017

First Submission

2

6 June 2017

Amended according to the IEC¡¦s comments on 2 June 2017

 

 

 

 

 

 

This report has been prepared by Action-United Environmental Services & Consulting with all reasonable skill, care and diligence within the terms of the Agreement with the client, incorporating our General Terms and Conditions of Business and taking account of the resources devoted to it by agreement with the client. We disclaim any responsibility to the client and others in respect of any matters outside the scope of the above. This report is confidential to the client and we accept no responsibility of whatsoever nature to third parties to whom this report, or any part thereof, is made known. Any such party relies upon the report at their own risk.

 


 

 

 

 

Executive Summary

ES.01.   This is the 14th Quarterly EM&A Summary Report for the ¡§Liantang/Heung Yuen Wai Boundary Control Point and Associated Works¡¨ under Environmental Permit No. EP-404/2011/D (hereinafter ¡¥¡¥the EP¡¦¡¦), covering the period from 1 November 2016 to 31 January 2017 (hereinafter ¡§Reporting Period¡¨).

 

Environmental Monitoring and Audit Activities

ES.02.   In the Reporting Period, the construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project included Contract 2, Contract 3, Contract 6, Contract 7 and Contract SS C505.  Environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table.

 

Environmental Aspect

Monitoring Parameters / Inspection

Reporting Period

Monitoring Locations / Contracts

Total Occasions  

Air Quality

1-hour TSP

9

432

24-hour TSP

9

144

Construction Noise

Leq(30min) Daytime

10

130

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C,

38 scheduled and 0 extra of sampling day

WM2A & WM2A-Cx

38 scheduled and 10 extra of sampling day

WM2B & WM2B-C

38 scheduled and 1 extra of sampling day

WM3 &WM3-C

38 scheduled and 8 extra of sampling day

WM4, WM4-CA &WM4-CB

38 scheduled and 3 extra of sampling day

Ecology

Woodland compensation

i)     General Health condition of planted species

ii)   Survival of planted species

9 Quadrats

2

Joint Site Inspection / Audit

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

Contract 2

13

Contract 3

12

Contract 6

13

Contract 7

13

Contract SS C505

13

Note: Extra monitoring day was due to measurement results exceedance

 

Breaches of Action/Limit levels

ES.03.   In the Reporting Period, no air quality exceedances were recorded. However, one noise complaint which triggered Action Level was registered for construction noise. For water quality monitoring, a total of 55 of Action/ Limit Level exceedance were recorded.  The summary of exceedance for the Reporting Period is shown below.

 

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

24-hour TSP

0

0

0

--

--

Construction Noise

Leq(30min) Daytime

1

0

0

IR revealed that the noise complaint was non-project related

--

Water Quality

DO

0

0

0

--

--

Turbidity

1

24

25

3 exceedances were  Project related

22 exceedances were not Project related

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

SS

2

28

30

3 exceedances were  Project related

27 exceedances were not Project related

 

Environmental Complaint

ES.04.   In this Reporting Period, seven (7) documented environmental complaints were received under the EM&A Programme.  Investigation result revealed that 2 complaints regards wastewater issues were related to the works under Project and remedial actions had undertaken by Contractor.  The rest of 5 complaints were not related to works under Project.

 

Notification of Summons and Successful Prosecutions

ES.05.   No environmental summons or successful prosecutions were recorded in the Reporting Period.  

 

Reporting Changes

ES.06.   In the Reporting period, no reporting changes were made.

 

Future key issues

ES.07.   During dry season, special attention should be paid on the potential construction dust impact since most of the construction sites are adjacent to villages. The Contractor should fully implement the construction dust mitigation measures.

 

ES.08.   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 should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.  Moreover, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

ES.09.   Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.


Table of Contents

1       Introduction   1

1.1          Project Background   1

1.2          Report Structure  1

2       Project Organization and Construction progress  2

2.1          Construction Contract Packaging   2

2.2          Project Organization   4

2.3          Concurrent Projects  6

2.4          Construction Progress  6

2.5          Summary of Environmental Submissions  8

3       Project Organization and Construction progress  14

3.1          General  14

3.2          Monitoring Parameters  14

3.3          Monitoring Locations  14

3.4          Monitoring Frequency and Period   16

3.5          Monitoring Equipment  17

3.6          Monitoring Methodology   19

3.7          Equipment Calibration   21

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

3.9          Data Management and Data QA/QC Control  22

4       Air Quality Monitoring   1

4.1          General  1

4.2          Summary of Monitoring Results  1

5       Construction Noise Monitoring   3

5.1          General  3

5.2          Summary of Monitoring Results  3

5.3          Noise Monitoring Results (Restricted Hours) 4

6       Water Quality Monitoring   6

6.1          General  6

6.2          Summary of Monitoring Results  6

7       Ecology Monitoring   11

7.1          General  11

8       Waste Management   12

8.1          General Waste Management  12

8.2          Records of Waste Quantities  12

9       Site Inspections  14

9.1          requirements  14

10     Non-compliance, Complaints, Notifications of Summons and Prosecutions  16

10.1        Status of Non-compliance Environmental Complaint, Summons and Prosecution   16

11     Implementation Status of Mitigation Measures  20

11.1        General Requirements  20

12     Conclusions and Recommendations  21

12.1        Conclusions  21

12.2        Recommendations  21

 


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 Air Quality Monitoring Results

Table 4-2      Summaries of Breaches of Air Quality A/L Levels

Table 5-1     Summary of Construction Noise Monitoring Results

Table 5-2      Summaries of Breaches of Construction Noise A/L Levels

Table 5-3      Summary of Construction Noise Monitoring Results for Restricted Hours

Table 6-1      Summary of the Water Quality Monitoring Results ¡V Contract 5

Table 6-2      Summary of the Water Quality Monitoring Results ¡V Contract 2 & 3

Table 6-3      Summary of the Water Quality Monitoring Results ¡V Contract 6

Table 6-4      Summary of the Water Quality Monitoring Results ¡V Contract 2 & 6

Table 6-5      Summaries of Breaches of the Existing Water Quality A/L Levels

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

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

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

Table 9-1      Summary of Reminders/Observations of Site Inspection ¡V Contract 2

Table 9-2      Summary of Reminders/Observations of Site Inspection ¡V Contract 3

Table 9-3      Summary of Reminders/Observations of Site Inspection ¡V Contract 5

Table 9-4      Summary of Reminders/Observations of Site Inspection ¡V Contract 6

Table 9-5      Summary of Reminders/Observations of Site Inspection ¡V Contract SS C505

Table 9-6      Summary of Reminders/Observations of Site Inspection ¡V Contract 7

Table 10-1    Statistical Summary of Environmental Complaints

Table 10-2    Statistical Summary of Environmental Summons

Table 10-3    Statistical Summary of Environmental Prosecution

Table 11-1    Environmental Mitigation Measures

 

List of Annexes

Appendix A  Layout plan of the Project

Appendix B  Environmental Management Organization Chart

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

Appendix D  Monitoring Locations for Impact Monitoring

Appendix E  Event and Action Plan

Appendix F Graphical Plots for Monitoring Result

Appendix G Weather information

Appendix H Waste Flow Table

Appendix I  Implementation Schedule for Environmental Mitigation Measures

 

 

 

 


1        Introduction

1.1  Project Background

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

 

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

 

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

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

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

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

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

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

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

 

1.1.4.      Action-United Environmental Services & Consulting has been commissioned as an Independent ET to implement the relevant EM&A program in accordance with the approved EM&A Manual, as well as the associated duties.

 

1.1.5.      This is the 14th Quarterly EM&A Summary Report presenting the monitoring results and inspection findings for the Reporting Period from 1 November 2016 to 31 January 2017.

 

1.2  Report Structure

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

Section 1       Introduction

Section 2       Project Organization and Construction progress

Section 3       Summary of Impact monitoring Requirements

Section 4       Air Quality Monitoring

Section 5       Construction Noise Monitoring

Section 6       Water Quality Monitoring

Section 7       Ecology Monitoring

Section 8       Waste Management

Section 9       Site Inspection

Section 10     Non-compliance, Complaints, Notifications of Summons and Prosecutions

Section 11     Implementation Status of Mitigation Measures

Section 12     Conclusions and Recommendations


2        Project Organization and Construction progress

2.1  Construction Contract Packaging

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

¡P                Contract 2 (CV/2012/08)

¡P                Contract 3 (CV/2012/09)

¡P                Contract 4 (NE/2014/02)

¡P                Contract 5 (CV/2013/03)

¡P                Contract 6 (CV/2013/08)

¡P                Contract 7 (NE/2014/03)

¡P                ArchSD Contract No. SS C505

 

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

 

Contract 2 (CV/2012/08)

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

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

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

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

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

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

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

 

Contract 3 (CV/2012/09)

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

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

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

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

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

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

 

Contract 4 (NE/2014/02)

2.1.5                 Contract 4 has awarded in mid-April 2016. However, the major construction work still is not yet commenced.  The scope of work of the Contract 4 includes:

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

 

Contract 5 (CV/2013/03)

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

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

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

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

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

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

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

 

Contract 6 (CV/2013/08)

2.1.7        Contract 6 was 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 was awarded in December 2015 and the construction work was commenced 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 been 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.  The Contractor(s) should report to the ER.  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)

2.2.8        One ET will be employed for this Project.  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 lEC and Contractor(s) 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)

2.2.9        One IEC will be employed for this Project.  The Independent Environmental Checker (IEC) should not be in any way an associated body of the Contractor(s) 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 duty of IEC should be:

¡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           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, ET, lEC and the Contractor(s) of the concurrent projects as listed under Section 2.3 below regarding the cumulative impact issues.

 

2.3  Concurrent Projects

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

                         (a)          Regulation of Shenzhen River Stage IV;

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

                         (c)          Construction of BCP facilities in Shenzhen.

 

2.4  Construction Progress

2.4.1        In the Reporting Period, the major construction activity conducted under the Project is located in Contracts 2, 3, 6, 7 and SS C505 and they are summarized in below.

 

Contract 2 (CV/2012/08)

2.4.2        Construction work of Contract 2 was commenced on 19 May 2014, the following activities were conducted in the Reporting Period.

Mid-Vent Portal

Ÿ    Stud tunnel and cavern excavation

Ÿ    Adit invert slab, waterproofing and lining

Ÿ    Connecting structure, ventilation building superstructure and backfilling

Ÿ    Preparation for Tunnel Boring Machine (TBM) south drive break out

North Portal

Ÿ    Slope stabilization and retaining wall

Ÿ    Southbound Tunnel Boring Machine (TBM) excavation

Ÿ    Northbound bench excavation

Ÿ    Tunnel enlargement and construction of cross passage

Ÿ    Tunnel internal structure and cross passage

Ÿ    ventilation building foundation

South Portal

Ÿ    Southbound and northbound Drill & Blast Excavation

Ÿ    South ventilation and building superstructure

Ÿ    Tunnel invert, waterproofing and lining

Admin Building

Ÿ    Building superstructure and external wall

 

Contract 3 (CV/2012/09)

2.4.3        Contract commenced in November 2013, the following activities were conducted in the Reporting Period.

Ÿ  Abutment construction

Ÿ  Construction of boundary wall for DSD pumping station

Ÿ  Cable detection and trial trenches

Ÿ  Demolition of existing Vehicular Bridge

Ÿ  Footbridge construction

Ÿ  Storm drains laying

Ÿ  Noise barrier construction

Ÿ  Pier / pier table construction

Ÿ  Pile cap works

Ÿ  Portal beam construction

Ÿ  Retaining wall construction

Ÿ  Road works

Ÿ  Sewer works

Ÿ  Utilities Duct Laying

Ÿ  Viaduct segment erection

Ÿ  Water Main Laying

Ÿ  Extended Podium construction

Ÿ  Construction of remaining base Slab of Box Culvert ID4

Ÿ  Slope reinstatement works near Bridge E

Ÿ  Utilities duct laying

Ÿ  Viaduct segment erection

Ÿ  Demolition of existing WSD Telemetry House

Ÿ  Roundabout modification works

 

Contract 4 (NE/2014/02)

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

 

Contract 5 (CV/2013/03)

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

 

Contract 6 (CV/2013/08)

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

Ÿ  Bored Piling

Ÿ  Pile Cap Construction

Ÿ  Bridge Pier Construction

Ÿ  Bridge Segment Erection

Ÿ  Tunnel Excavation

Ÿ  Sewage Treatment Plant Construction

Ÿ  Road Construction

 

Contract 7 (NE/2014/03)

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

              Piling Works at Bridges A and E

              Pile Caps Construction at Bridges A, B, D and E

              Column construction at Bridge C

              2nd floor slab construction at Bridge C

 

Contract SS C505

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

                  General Site Set-up

              Building no.4, 5, 6, 7, 9, 10, 11 and 36 construction

              Excavation waterproofing works for Building no. 4, 6 & 11

              Excavation for drainage works for Building no. 4 & 5

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

              Roof construction for Building no.36

              Tower crane operation

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

              Underground drainage works

              Prototype ¡§A¡¨ & ¡§B¡¨ construction works

              Mock up for south entrance double curve cladding

              Formwork and falsework for PTB¡¦s slab construction

              Construction PTB M/F & 1/F flat slab

              Steel beam works for maintenance platform for PTB

              Pile cap construction for PTB, including excavation and backfilling works

              Bridge deck construction for Bridges 1 ¡V 5

              Footing construction

 

2.5  Summary of Environmental Submissions

2.5.1        In according to the EP, the required documents have submitted to EPD for retention 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

8 Oct 2014

30 Sep 2019

No.: W5/1I389

28 Mar 2014

31 Mar 2019

No. WT00023063-2015

18 Dec 2015

31 Mar 2019

No.: W5/1I392

28 Mar 2014

31 Mar 2019

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7019105

8 Jan 2014

Till Contract ends

5

Construction Noise Permit

GW-RN0457-16

22 Jun 2016

14 Dec 2016

GW-RN0435-16

27 Jun 2016

26 Dec 2016

GW-RN0543-16

18 Jul 2016

13 Jan 2017

GW-RN0582-16

09 Aug 2016

08 Nov 2016

GW-RN0590-16

09 Aug 2016

08 Nov 2016

GW-RN0579-16

11 Aug 2016

07 Jan 2017

GW-RN0604-16

11 Aug 2016

07 Jan 2017

GW-RN0695-16

18 Sep 2016

17 Mar 2017

GW-RN0700-16

20 Sep 2016

19 Feb 2017

GW-RN0759-16

12 Oct 2016

11 Apr 2017

GW-RN0780-16

27 Oct 2016

26 Dec 2016

GW-RN0788-16

27 Oct 2016

26 Dec 2016

GW-RN0800-16

01 Nov 2016

29 Apr 2017

GW-RN0814-16

06 Nov 2016

27 Nov 2016

GW-RN0822-16

09 Nov 2016

08 May 2017

GW-RN0823-16

09 Nov 2016

08 May 2017

GW-RN0839-16

20 Nov 2016

07 May 2017

GW-RN0852-16

23 Nov 2016

2 May 2017

GW-RN0895-16

20 Dec 2016

11 Jun 2017

GW-RN0926-16

27 Dec 2016

26 Jun 2017

GW-RN0928-16

27 Dec 2016

26 Jun 2017

GW-RN0072-17

1 Feb 2017

31 Jul 2017

GW-RN0073-17

1 Feb 2017

31 Jul 2017

6

Specified Process License

(Mortar Plant Operation)

L-3-251(1)

12-Apr-2016

11-Apr-2021

Contract 3

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 362101

17 Jul 2013

Till Contract ends

2

Chemical Waste Producer Registration

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

 

7 Oct 2013

Till Contract ends

3

Water Pollution Control Ordinance - Discharge License

No.:WT00016832 ¡V 2013

28 Aug 13

31 Aug 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017914

2 Aug 13

Till Contract ends

5

 

 

Construction Noise Permit

GW-RN0414-16

18 Jun 2016

17 Dec 2016

GW-RN0434-16

22 Jun 2016

21 Dec 2016

GW-RN0525-16

20 Jul 2016

7 Jan 2017

GW-RN0541-16

5 Aug 2016

4 Nov 2016

GW-RN0549-16

30 Jul 2016

9 Jan 2017

GW-RN0561-16

16 Aug 2016

11 Feb 2017

GW-RN0580-16

25 Aug 2016

24 Feb 2017

GW-RN0581-16

25 Aug 2016

24 Feb 2017

GW-RN0596-16

17 Aug 2016

15 Feb 2017

GW-RN0619-16

22 Aug 2016

14 Feb 2017

GW-RN0646-16

10 Sep 2016

9 Mar 2017

GW-RN0649-16

3 Sep 2016

7 Jan 2017

GW-RN0653-16

11 Sep 2016

10 Mar 2017

GW-RN0654-16

15 Sep 2016

14 Mar 2017

GW-RN0708-16

8 Oct 2016

28 Jan 2017

GW-RN0711-16

1 Oct 2016

13 Jan 2017

GW-RN0720-16

4 Oct 2016

31 Mar 2017

GW-RN0729-16

5 Oct 2016

31 Mar 2017

GW-RN0756-16

18 Oct 2016

13 Apr 2017

GW-RN0759-16

5 Nov 2016

29 Apr 2017

GW-RN0816-16

13 Nov2016

27 Mar 2017

GW-RN0833-16

13 Nov2016

10 May 2017

GW-RN0836-16

15 Nov2016

31 Mar 2017

GW-RN0843-16

18 Nov2016

17 May 2017

GW-RN0856-16

17 Nov2016

7 Jan 2017

GW-RN0870-16

30 Nov2016

13 May 2017

GW-RN0871-16

29 Nov2016

20 May 2017

GW-RN0872-16

29 Nov2016

20 May 2017

GW-RN0901-16

11 Dec 2016

4 Jun 2017

GW-RN0939-16

22 Dec 2016

21 Jun 2017

GW-RN0947-16

24 Dec 2016

15 Jun 2017

GW-RN0965-16

28 Dec 2016

13 Jun 2017

GW-RN0002-17

8 Jan 2017

4 Jun 2017

GW-RN0004-17

11 Jan 2017

18 Feb 2017

GW-RN0021-17

19 Jan 2017

8 Jul 2017

GW-RN0029-17

21 Jan 2017

8 Jul 2017

GW-RN0032-17

25 Feb 2017

10 Jul 2017

GW-RN0040-17

25 Jan 2017

24 Aug 2017

GW-RN0048-17

3 Feb 2017

16 Jun 2017

GW-RN0066-17

15 Feb 2017

15 Jul 2017

GW-RN0069-17

15 Feb 2017

14 Aug 2017

GW-RN0070-17

3 Feb 2017

15 Jul 2017

GW-RN0071-17

16 Feb 2017

15 Aug 2017

Contract 5

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 359338

 

13 May 2013

Till the end of Contract

2

Chemical Waste Producer Registration

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

8 Jun 2013

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: W5/1G44/1

8 Jun 13

30 Jun 2018

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7017351

29 Apr 13

Till the end of Contract

Contract 6

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390614

29 Jun 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

31 Aug 2015

Till the end of Contract

3

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022707

9 Jul 2015

Till the end of Contract

4

Water Pollution Control Ordinance - Discharge License

No.:WT00024574-2016

31 May 2016

31 May 2021

No.:WT00024576-2016

31 May 2016

31 May 2021

No.:WT00024742-2016

14 June 2016

30 June 2021

No.:WT00024746-2016

14 June 2016

30 June 2021

5

Construction Noise Permit

GW-RW0588-16

19 Oct 2016

18 Apr 2017

GW-RN0766-16

21 Oct 2016

20 Jan 2017

GW-RN0915-16

20 Dec 2016

14 Mar 2017

GW-RN0937-16

3 Jan 2017

31 Mar 2017

GW-RN0964-16

6 Jan 2017

5 Apr 2017

GW-RW0003-17

16 Jan 20217

15 Jul 2017

GW-RW0005-17

1 Apr 2017

30 Jun 2017

Contract SS C505

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390974

13 Jul 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

16 Sep 2015

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024865-2016

8 Jul 2016

30 Nov 2020

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022831

23 Jul 2015

Till the end of Contract

5

Construction Noise Permit

GW-RN0396-16

5 June 2016

4 Nov 2016

GW-RN0806-16

5 Nov 2016

4 May 2017

PP-RN0020-16

16 Jul 2016

14 Jan 2017

GW-RN0520-16

23 Jul 2016

22 Jan 2017

GW-RN0803-16

5 Nov 2016

4 May 2017

GW-RN0065-17

7 Feb 2017

6 Aug 2017

Contract 7

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 397015

21 Dec 2015

Till the end of Contract

2

Chemical Waste Producer Registration

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

24 Mar 2016

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

No.: WT00024422-2016

10 May 2016

31 May 2021

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7024129

21 Jan 2016

Till the end of Contract

5

Construction Noise Permit

GW-RN0538-16

23 Jul 2016

4 Nov 2016

GW-RN0799-16

5 Nov 2016

4 May 2017

                                  Contract 4

1

 

Air pollution Control (Construction Dust) Regulation

Form of Notification of Construction work has submitted to EPD in July 2016.

2

Chemical Waste Producer Registration

Application is under preparation

3

Water Pollution Control Ordinance - Discharge License

Application is under preparation

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Application is under preparation

 


 

3        Project Organization and Construction progress

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 C.  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 D.

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 AM7a to AM7b was submitted to EPD on 4 June 2014 after verified by the IEC. It was approved by EPD (EPD¡¦s ref.: (7) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).

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

 

Table 3-3             Impact Monitoring Stations - Construction Noise

Station ID

Description

Works Area

Related to the Work Contract

NM1

Tsung Yuen Ha Village House No. 63

BCP

ArchSD SS C505

Contract 5

Contract 7

NM2a#

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 5,

Contract 6

NM3

Ping Yeung Village House (facade facing northeast)

Ping Yeung to Wo Keng Shan

Contract 6

NM4

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

NM5

Village House, Loi Tung

Sha Tau Kok Road

Contract 2,

Contract 6

NM6

Tai Tong Wu Village House 2

Sha Tau Kok Road

Contract 2,

Contract 6

NM7

Po Kat Tsai Village

Po Kat Tsai

Contract 2

NM8

Village House, Tong Hang

Fanling

Contract 2

Contract 3

NM9

Village House, Kiu Tau Village

Fanling

Contract 3

NM10

Nam Wa Po Village House No. 80

Fanling

Contract 3

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

 

Table 3-4             Impact Monitoring Stations - Water Quality

Station ID

Description

Coordinates of Designated / Alternative Location

Nature of the location

Related to the Work Contract

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

ArchSD SS C505

Contract 5

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

ArchSD SS C505

Contract 5

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at downstream 81m of the designated location

Contract 6

WM2A(a)*

Downstream of River Ganges

834 191

844 474

Alternative location located at upstream 70m of the designated location

Contract 6

WM2A- Controlx#

Upstream of River Ganges

835 377

844 188

Alternative location located at upstream 160m of the designated location

Contract 6

WM2B

Downstream of River Ganges

835 433

843 397

NA

Contract 6

WM2B- Control

Upstream of River Ganges

835 835

843 351

Alternative location located at downstream 31m of the designated location

Contract 6

WM3x#

Downstream of River Indus

836 206

842 270

Alternative location located at downstream 180m of the designated location

Contract 2

Contract 6

WM3- Control

Upstream of River Indus

836 763

842 400

Alternative location located at downstream 26m of the designated location

Contract 2#

Contract 6

WM4

Downstream of Ma Wat Channel

833 850

838 338

Alternative location located at upstream 11m of the designated location

Contract 2

Contract 3

WM4¡V Control A

Kau Lung Hang Stream

834 028

837 695

Alternative location located at downstream 28m of the designated location

Contract 2

Contract 3

WM4¡V Control B

Upstream of Ma Wat Channel

833760

837395

Alternative location located at upstream 15m of the designated location

Contract 2

Contract 3

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

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

 

 

3.4  Monitoring Frequency and Period

3.4.1        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

3.4.2        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

3.4.3        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

3.4.4        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-Hour 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

 

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-1.

 

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-52

Calibrator

B&K Type 4231 or Rion NC-74

Portable Wind Speed Indicator

Testo Anemometer

 

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:

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

            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 PRO20 Handheld Dissolved Oxygen Instrument / YSI 550A Multifunctional Meter/

pH meter

AZ8685 pH pen-style meter

Turbidimeter

Hach 2100Q / YSI Professional DSS

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

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

 

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 were 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 were used as the monitoring parameter for the time period between 0700-1900 hours on weekdays; and also Leq(15min) in three consecutive Leq(5min) measurements is 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 was performed before and after the noise measurement.

 

Water Quality

3.6.9        Water quality monitoring is conducted at the designated locations. The sampling produce 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 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    Instrument including YSI PRO20 Handheld Dissolved Oxygen Instrument or YSI 550A Multifunctional Meter 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.  Before each round of monitoring, the dissolved oxygen probe would be calibrated by the wet bulb method.

 

3.6.15    A portable AZ8685 pH pen-style meter 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.  StablCal® Standards of known NTU are used for calibration of the instrument before and after measurement.

 

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 are analyzed with Suspended Solids (SS) as specified in the EM&A Manual by a local HOKLAS-accredited testing laboratory (ALS Technichem (HK) Pty Ltd HOKLAS registration no. 66).  SS analysis is determined by the laboratory upon receipt of the water samples using APHA Standard Methods 2540D (namely ALS Method EA-025 as accredited HOKLAS Scheme) started 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 is 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 presented in the relevant monthly EM&A reports.  

 

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

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

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

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

AM1b

265

143

500

260

AM2

268

149

AM3

269

145

AM4b

267

148

AM5a

268

143

AM6

269

148

AM7b

275

156

AM8

269

144

AM9b

271

151

 

Table 3-9             Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

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

When one or more documented complaints are received

75 dB(A)Note 1 & Note 2

Note 1:      Acceptable Noise Levels for school should be reduced to 70 dB(A) and 65 dB(A) during examination period

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

Table 3-10           Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

WM1

WM2A(a)

WM2B

WM3x

WM4

DO (mg/L)

Action Level

(*)4.23

(**)4.00

(*)4.74

(**)4.00

(*)4.14

Limit Level

(#)4.19

(**)4.00

(#)4.60

(**)4.00

(#)4.08

Turbidity (NTU)

Action Level

51.3

24.9

11.4

13.4

35.2

AND  120% of upstream control station of the same day

Limit Level

67.6

33.8

12.3

14.0

38.4

AND  130% of upstream control station of the same day

SS (mg/L)

Action Level

54.5

14.6

11.8

12.6

39.4

AND  120% of upstream control station of the same day

Limit Level

64.9

17.3

12.4

12.9

45.5

AND  130% of upstream control station of the same day

Remarks:

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

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

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

 

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

 

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 properly 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, 6, 7 and Contract SS C505 and air quality monitoring was performed at all designated locations.

 

4.2              Summary of Monitoring Results

4.2.1        Summary of air quality monitoring results during the Reporting Period are tabulated in Table 4-1.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

Table 4-1            Summary of Air Quality Monitoring Results

Monitoring Location

1-hour TSP (µg/m3)

24-hour TSP (µg/m3)

Max

Min

Mean

Max

Min

Mean

AM1b

127

33

91

124

51

84

Record Date

29-Dec-16

26-Nov-16

48 events

20-Jan-17

24-Nov-16

16 events

AM2

146

42

102

147

33

115

Record Date

16-Jan-17

26-Nov-16

48 events

3-Jan-17

9-Jan-17

16 events

AM3

206

40

107

138

16

108

Record Date

16-Jan-17

26-Nov-16

48 events

6-Dec-16

24-Nov-16

16 events

AM4b

115

36

82

115

24

67

Record Date

21-Dec-16

22-Nov-16

48 events

8-Dec-16

26-Nov-16

16 events

AM5a

126

35

81

119

12

74

Record Date

17-Jan-17

22-Nov-16

48 events

20-Dec-16

26-Nov-16

16 events

AM6

130

39

84

146

43

98

Record Date

17-Jan-17

22-Nov-16

48 events

14-Dec-16

26-Nov-16

16 events

AM7b

124

43

84

139

19

88

Record Date

27-Jan-17

10-Nov-16

48 events

21-Jan-17

26-Nov-16

16 events

AM8

129

47

83

99

22

59

Record Date

23-Jan-17

10-Nov-16

48 events

8-Dec-16

16-Jan-17

16 events

AM9b

181

31

103

85

22

58

Record Date

2-Dec-16

26-Jan-17

48 events

6-Dec-16

12-Nov-16

16 events

 

4.2.2        Breaches of air quality A/L levels and statistical analysis of compliance for the air quality monitoring results are summarized in Table 4-2.

Table 4-2             Summaries of Breaches of Air Quality A/L Levels

Location

Exceedance

1-hour TSP

24- hour TSP

Total

AM1

Action Level

0

0

0

Limit Level

0

0

0

AM2

Action Level

0

0

0

Limit Level

0

0

0

AM3

Action Level

0

0

0

Limit Level

0

0

0

AM4a

Action Level

0

0

0

Limit Level

0

0

0

AM5a

Action Level

0

0

0

Limit Level

0

0

0

AM6

Action Level

0

0

0

Limit Level

0

0

0

AM7b

Action Level

0

0

0

Limit Level

0

0

0

AM8

Action Level

0

0

0

Limit Level

0

0

0

AM9b

Action Level

0

0

0

Limit Level

0

0

0

 

4.2.3        In the Reporting Period, 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.

 

4.2.4        The summary of weather conditions during the Reporting Period is presented in Appendix G.

 


 

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

 

5.2              Summary of Monitoring Results

5.2.1        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. No façade correction (+3 dB(A) is added according to acoustical principles and EPD guidelines.  However, free-field status is performed at NM2a and NM10 and façade correction (+3 dB(A) has added according to the requirement.

 

5.2.2        Summary of noise monitoring results during the Reporting Period are tabulated in Table 5-1.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

Table 5-1            Summary of Construction Noise Monitoring Results

Monitoring Location

Leq, 30min (dB((A))

Max

Min

NM1

63

52

Record Date

20-Dec-16

& 26-Jan-17

21-Nov-16

NM2/ NM2a(*)

72

61

Record Date

20-Dec-16

3-Nov-16

8-Dec-16

NM3

65

57

Record Date

15-Dec-16

4-Nov-16

10-Nov-16

NM4

71

63

Record Date

4-Nov-16

28-Nov-16

17-Jan-17

 

NM5

62

49

Record Date

21-Dec-16

30-Dec-16

NM6

67

55

Record Date

21-Dec-16

28-Nov-16

NM7

71

59

Record Date

21-Dec-16

17-Jan-17

NM8

60

56

Record Date

3-Nov-16

14-Dec-16

21-Nov-16

NM9

64

61

Record Date

9-Nov-16

2-Dec-16

14-Dec-16

NM10(*)

68

61

Record Date

2-Dec-16

10-Jan-17

3-Nov-16

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

 

5.2.3        Breaches of construction noise A/L levels and statistical analysis of compliance for construction noise monitoring results are summarized in Table 5-2.

Table 5-2             Summaries of Breaches of Construction Noise A/L Levels

Station

Limit Level

Action Level

Received Date

NM1

0

1

2 November 2017

NM2/ NM2a

0

NM3

0

NM4

0

NM5

0

NM6

0

NM7

0

NM8

0

NM9

0

NM10

0

 

5.2.4        In this Reporting Period, the noise level measured at all designated monitoring locations were below 75dB(A).  No Limit Level exceedance was triggered and no corrective action was required.

 

5.2.5        However, there was a noise complaint which triggered the Action Level exceedance received in the period of 31 October to 2 November 2016.  The investigation report for the complaint has completed by the ET which concluded that the complaint was not related to the project. 

 

5.3              Noise Monitoring Results (Restricted Hours)

5.3.1        In the Reporting Period, CNPs were granted by Contracts 2, 3, 6, 7 and SS C505 for use of Powered Mechanical Equipment (PME) during restricted hour.  As confirmed by both Contractors with their works schedules, construction works would be conducted at Contract 6 and 7 during restricted hours with the granted CNP.  Noise monitoring was therefore conducted at the relevant noise monitoring locations during respective restricted hour periods. 

 

5.3.2        Based on the works schedule by the Contractor of Contracts 2, 3, 6, 7 and SS C505 the involved noise monitoring locations included NM1, NM7, NM8, NM9 and NM10.  Summary of noise monitoring results during the Reporting Period are tabulated in Table 5-3.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

Table 5-3         Summary of Construction Noise Monitoring Results for Restricted Hours

Monitoring Location

Evening (Leq5min), dB(A)

Night time Leq (Leq5min), dB(A)

Max

Min

Max

Min

NM5

53

45

53

45

Record Date

18-Nov-16

25-Nov-16

20-Jan-17

 

6-Jan-17

4-Nov-16

26-Jan-17

 

NM7

60

44

57

43

Record Date

30-Dec-16

16-Dec-16

20-Dec-16

25-Nov-16

NM8

64

56

63

52

Record Date

13-Jan-17

11-Nov-16

9-Dec-16

4-Nov-16

2-Dec-16

NM9

NA

NA

66

59

Record Date

NA

NA

20-Jan-17

5-Nov-16

NM10(*)

NA

NA

59

55

Record Date

NA

NA

27-Jan-17

5-Nov-16

NM1

52

49

64

60

Record Date

25-Nov-16

2-Dec-16

13-Oct-16

28-Oct-16

NM4

56

42

64

60

Record Date

20-Jan-17

6-Jan-17

13-Oct-16

28-Oct-16

Remarks:   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.

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

 

5.3.3        According to the site records by the monitoring team, no construction noise from the construction was noted during the course of monitoring at all locations.  On the other hand, traffic noise was dominated at NM8 and NM9 since the monitoring locations were closed to the train tracks and very serious dogs barking were recorded at NM10.  Therefore, it is considered that the measurement results were likely to be the background noise.


 

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, 6, 7 and Contract SS C505 and water quality monitoring was performed at all designated locations.

 

6.2              Summary of Monitoring Results

6.2.1        Summary of monitoring results during the Reporting Period are tabulated in Tables 6-1 and 6-4.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F. 

 

6.2.2        In accordance with ¡§Event and Action Plan¡¨, the water quality monitoring frequency shall be increased to daily when exceedance recorded at the exceeded monitoring location.  In the Reporting Period, 38 days of scheduled water monitoring were conducted.  Moreover, 10, 1, 8 and 3 days of extra water sampling were conducted for WM2A(a), WM2B, WM3 and WM4 and all its control station.

 

Table 6-1             Summary of the Water Quality Monitoring Results ¡V Contract 5

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM1

WM1- Control

WM1

WM1- Control

WM1

WM1- Control

Min

6.0

5.8

9.8

3.8

4.0

<2

Max

9.8

9.7

50.8

41.4

50.5

23.0

Average

8.2

8.1

22.6

7.7

21.2

3.9

 

Table 6-2             Summary of the Water Quality Monitoring Results ¡V Contract 2 & 3

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM4

WM4 - CA

WM4 - CB

WM4

WM4 - CA

WM4 - CB

WM4

WM4 - CA

WM4 - CB

Min

6.57

7.14

4.40

6.15

2.22

4.54

5.50

<2

4.00

Max

9.34

10.04

7.73

242.50

215.00

107.50

126.50

690.50

98.00

Average

7.95

8.38

6.60

28.12

16.57

15.79

26.81

44.41

15.54

 

Table 6-3             Summary of the Water Quality Monitoring Results ¡V Contract 6

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM2A(a)

WM2A-C

WM2B

WM2B-C

WM2A(a)

WM2A-C

WM2B

WM2B-C

WM2A(a)

WM2A-C

WM2B

WM2B-C

Min

7.0

6.7

7.2

6.3

7.5

4.7

2.8

1.7

4.0

<2

<2

<2

Max

9.0

9.0

9.4

8.3

319.0

84.5

306.5

7.0

223.0

44.0

368.5

5.5

Average

8.1

8.1

8.5

7.2

45.9

12.4

14.7

3.3

35.0

6.9

15.8

2.8

 

Table 6-4             Summary of the Water Quality Monitoring Results ¡V Contract 2 & 6

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM3

WM3- Control

WM3

WM3- Control

WM3

WM3- Control

Min

6.4

5.6

2.7

1.8

2.5

2.5

Max

8.9

8.6

531.5

28.9

826.0

37.0

Average

7.6

7.0

39.3

6.1

55.4

9.2

 

6.2.3        Breaches of water quality A/L levels and statistical analysis of compliance for the water quality monitoring results are summarized in Tables 6-5.

Table 6-5             Summaries of Breaches of the Existing Water Quality A/L Levels

Reporting Period

No. of sampling day

Location

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

Action

Limit

Action

Limit

Action

Limit

Nov-16

13

WM1

0

0

0

0

0

0

21

WM2A(a)

0

0

1

7

1

10

14

WM2B

0

0

0

1

0

1

21

WM3x

0

0

0

11

0

11

14

WM4

0

0

0

1

0

1

Dec-16

13

WM1

0

0

0

0

0

0

15

WM2A(a)

0

0

0

2

1

3

13

WM2B

0

0

0

0

0

0

13

WM3x

0

0

0

0

0

0

14

WM4

0

0

0

1

0

1

Jan-17

12

WM1

0

0

0

0

0

0

12

WM2A(a)

0

0

0

0

0

0

12

WM2B

0

0

0

0

0

0

12

WM3x

0

0

0

0

0

0

13

WM4

0

0

0

1

0

1

Total

38

WM1

0

0

0

0

0

0

48

WM2A(a)

0

0

1

9

2

13

39

WM2B

0

0

0

1

0

1

46

WM3x

0

0

0

11

0

11

41

WM4

0

0

0

3

0

3

Sum

0

0

1

24

2

28

 

6.2.4        In the Reporting Period, a total of 55 Action Level (AL)/ Limit Level (LL) exceedances namely 25 AL/LL exceedances of turbidity and 30 LL exceedances of SS were recorded.  NOEs were issued to relevant parties upon confirmation of the results.  

 

6.2.5        Investigation reports for the exceedance were conducted by the ET and the investigation results revealed that 6 out of 55 exceedances were related to the works under the project.  The detailed investigation reports are summarized in Table 6-6 and presented in the relevant monthly EM&A reports.

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

Date of Exceedance

Location

Exceeded Parameter

Cause of Water Quality Exceedance In Brief

2 and 4 Nov 2016

WM2A(a)

(C6)

NTU &SS

The IR revealed the exceedances were related to the exposed slope adjacent to the river course.  As remedial measures, CCKJV was immediately hard paved the exposed slope and erected sand bag barrier at the edge of slope. There were no exceedances recorded on the subsequent water quality monitoring 5 and 7 November 2016, thus it is considered that the remedial measures provided by CCKJV were effective.

9 and 10 Nov 2016

WM3x (C2 and C6)

NTU &SS

CCKJV reported that a pipe which carrying slurry from H-pipe works area to primary sedimentation tank at Wo Keng Shan was burst accidentally in the morning of 10 November 2016. The burst pipe was immediately replaced but some slurry was flowing into the adjacent river channel.

In our investigation, it is considered that the exceedances on 9 November 2016 were due to natural variation and unlikely caused by the works under the Project.  For the exceedances on 10 November 2016, it is considered that the exceedances were related to the pipe burst incident.  CCKJV was advised to regularly check up the condition of water pipe particularly carrying untreated water and ensure the wastewater treatment systems are well maintained.

15 Nov 2016

WM4 (C2 and C3)

NTU &SS

The IR revealed that muddy water was found in the river branch from Kiu Tau Road from an active construction site by other Contractor.  In our investigation, it is considered that exceedances were due to the muddy water from the outside of site boundary and not likely related to the works under the Contract.

11, 12, 14 and 15 Nov 2016

WM2A(a)

(C6)

NTU &SS

The IR revealed that the water mitigation measures implemented on site was in order and no adverse water impact was identified.  Moreover, there were no rain recorded during the exceedance days and surface runoff generated from the site area was unlikely to occur.  It is considered the exceedances were due to natural variation and unlikely caused by the works under the project.

15 and 16 Nov 2016

WM3x (C2 and C6)

NTU &SS

CCKJV reported that a portion of area Sha Tau Kok Road was handed over to other Contractor since 5 September 2016 and discharge of turbid water to the gully was observed in that portion area on 15 and 16 November 2016.

In our investigation, it is considered that the exceedances were due to the discharge of muddy water by other Contractor and unlikely caused by the works under the Project.

22, 23 and 24 Nov 2016

WM2A(a)

(C6)

NTU &SS

According to the rainfall record from the Hong Kong Observatory (HKO), there were rainstorms on 22 and 23 November 2016.  Muddy water generated from runoff from the surrounding environment and turbid water was also found throughout Ping Yeung River.  Thick sediment was cumulated at the river bed and more muddy water was generated under vigorous water flow and stir up sediment.

In our investigation, the implementation of water mitigation measures on site was in order and no adverse water quality impact was observed.  It is considered that the exceedances on 22 and 23 November 2016 were due to rainstorm and exceedances on 24 November 2016 was due to residual impact after rainstorm and not caused by the works under the Contract.

19, 21, 22 and 23, 25, 26 and 28 Nov 2016

WM3x (C2 and C6)

NTU &SS

The IR revealed that there was thick sediment cumulated at the channel bed of Ng Tung River and muddy turbulence was readily formed under water flow.  In our investigation, it is considered that the exceedances were likely due to the muddy turbulence formed by the loose sediment cumulated at the channel bed. Moreover, exceedances on 22, 23 and 26 November 2016 were also related to impact by rain.

26 Nov 2016

WM2B

(C6)

NTU &SS

The IR revealed that there was heavy rain on 26 November 2016and runoff from public road and getting into the channel was observed. It is considered that the exceedance were due rainstorm and runoff from road and not likely caused by the Project

28 and 30 Nov 2016

WM2A(a)

(C6)

NTU &SS

The IR revealed that the water mitigation measures implemented on site was in order and no adverse water impact was identified.  Moreover, there were no rain recorded during the exceedance days and surface runoff generated from the site area was unlikely to occur.  It is considered the exceedances were due to natural variation and unlikely caused by the works under the project.

6, 7 and 8 Dec 2016

WM2A(a)

(C6)

NTU &SS

The IR revealed that the water mitigation measures implemented on site was in order and no adverse water impact was identified.  Moreover, there were no rain recorded during the exceedance days and surface runoff generated from the site area was unlikely to occur.  It is considered the exceedances were due to natural variation and unlikely caused by the works under the project.

17 Dec 2016

WM4 (C2 and C3)

NTU &SS

The IR revealed that suspected direct discharge of untreated water was observed from construction site by the utility contractor near Tai Wo Service Road West (TWSRW) and muddy water was found at the box culvert under its site area.  In our investigation, it is considered that exceedances were not likely related to the works under both Contracts 2 and 6.

29 Dec 2016

WM2A(a)

(C6)

NTU &SS

The IR revealed that the water mitigation measures implemented on site was in order and no adverse water impact was identified.  Moreover, there were no rain recorded during the exceedance days and surface runoff generated from the site area was unlikely to occur.  It is considered the exceedances were due to natural variation and unlikely caused by the works under the project.

21 Jan 2017

WM4 (C2 and C3)

NTU &SS

During weekly site inspection at South Portal of Contract 2, it was observed the wastewater treatment facility implemented on site was function properly and the treated water to be discharge was visually clear.  The site condition was generally in order and no adverse water quality impacts and abnormal situation under the Contract were identified.  Moreover, there was no rain recorded on 21 January 2017 and runoff from the site was unlikely to occur.  In our investigation, it is considered that exceedances were due to natural variation and unlikely related to the works under the Contract.

 

During weekly site inspection by ET at Contracts 3 in January 2017, it was observed that no excessive wastewater was generated from the active construction works and the water quality in the existing river channel adjacent to the construction site was clear.   The site condition was generally in order and no adverse water quality impacts and abnormal situation under the Contract were identified.  Moreover, there was no rain recorded on 21 January 2017 and runoff from the site was unlikely to occur.  In our investigation, it is considered that exceedances were due to natural variation and unlikely related to the works under the Contract 3.

 


 

7                    Ecology Monitoring

7.1              General

7.1.1        Ecology monitoring for woodland compensation was shall be conducted at bi-monthly interval.  The ecological monitoring report (Nov-Dec 2016) was submitted to EPD in January 2017 and the ecological monitoring report (Jan-Feb 2017) was submitted to EPD in March 2017.

 


8        Waste Management

8.1  General Waste Management

8.1.1        Waste management was carried out by an on-site Environmental Officer or an Environmental Supervisor from time to time.

 

8.2  Records of Waste Quantities

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

l   Construction & Demolition (C&D) Material;

l   Chemical Waste;

l   General Refuse

 

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

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

Type of Waste

Contract

No

Quantity

Disposal Location

Nov 2016

Dec 2016

Jan 2017

Total

C&D Materials (Inert)

(in '000m3)

2

100.2462

75.9804

59.9685

357.589

-

3

0.747

0.675

1.15

 

6

35.682

28.5

39.926

-

7

0

0

0

 

SS C505

4.841

6.713

3.16

-

Reused in this Project (Inert)

(in '000m3)

2

0.4509

0.9293

0.4203

52.845

-

3

0.201

0.12

0.15

-

6

8.541

10.447

19.095

-

7

0

0

0

 

SS C505

4.0475

6.44

2.003

-

Reused in other Projects (Inert)

(in '000m3)

2

45.5418

26.2843

26.9277

115.737

C6/ NENT# & other projects approved by the ER

3

0

0

0

 

6

4.298

6.618

6.067

C5 & other projects approved by the ER

7

0

0

0

 

SS C505

0

0

0

 

Disposal as Public Fill (Inert)

(in '000m3)

2

54.2534

48.7668

32.6205

188.534

Tuen Mun 38

TKO 137

3

0.407

0.425

0.796

6

22.843

11.435

14.764

7

0

0

0

SS C505

0.793

0.273

1.157

Remark:

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

Since major construction activities under Contractor 5 have been substantially completed on 31 August 2016, no data was presented for Sep 2016 and Oct 2016.

 

 

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

Type of Waste

Contract

No

Quantity

Disposal Location

Nov 2016

Dec 2016

Jan 2017

Total

Recycled Metal (¡¥000kg) #

2

65.172

21.791

9.687

1121.332+0.002#

By licensed collector

3

0.001

0.001

0

6

0

0

0

7

0.1

0.1

0.1

SS C505

268.18

298.052

458.15

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

2

0.45

0.32

0.3

2.78

By licensed collector

3

0

0

0

6

0.252

0.228

0

7

0.04

0.04

0.05

SS C505

0.54

0

0.56

Recycled Plastic (¡¥000kg) #

2

2.5623

2.5

2.3

7.5633+0.002#

By licensed collector

3

0.001

0

0.001

6

0

0

0

7

0.001

0.001

0.001

SS C505

0.087

0.053

0.058

Chemical Wastes (¡¥000kg) #

2

2.464

3.3

1.76

7.524

By licensed collector

3

0

0

0

6

0

0

0

7

0

0

0

SS C505

0

0

0

General Refuses (¡¥000m3)

2

0.3216

0.2052

0.1931

2.6939

NENT

3

0.125

0.12

0.17

6

0.115

0.065

0.065

7

0.005

0.005

0.01

SS C505

0.423

0.39

0.481

Remark:

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

 

8.2.3        To control the site performance on waste management, the Contractor shall ensure that all solid and liquid waste management works are fully in compliance with the relevant license/permit requirements, such as the effluent discharge license and the chemical waste producer registration.  The Contractor is also reminded to implement the recommended environmental mitigation measures according to the Environmental Monitoring and Audit Manual.


9        Site Inspections

9.1  requirements

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

 

Contract 2

9.1.2        During the Reporting Period, 13 events of the joint site inspections were undertaken at Contract 2 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-1 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-1             Summary of Reminders/Observations of Site Inspection ¡V Contract 2

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

November 2016

4, 11, 18 and 25 November 2016

3

Completed

December 2016

2, 9, 16, 19 and 30 December 2016

2

Completed

January 2017

6, 13, 20 and 27 January 2017

3

Completed

 

9.1.3        In the Reporting Period, no non-compliance was recorded; however, 8 observations/ reminders were recorded during the site inspections.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

Contract 3

9.1.4        During the Reporting Period, 12 events of the joint site inspections were undertaken at Contract 3 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-2 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-2             Summary of Reminders/Observations of Site Inspection ¡V Contract 3

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

November 2016

7, 6, 21 and 28 November 2016

4

Completed

December 2016

5, 12, 21 and 29 December 2016

1

Completed

January 2017

3, 9, 18 and 23 January 2017

5

Completed

 

9.1.5        In the Reporting Period, no non-compliance was recorded; however, 10 observations/ reminders were recorded during the site inspections.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

Contract 6

9.1.6        During the Reporting Period, 13 events of the joint site inspections were undertaken at Contract 6 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-4 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-4             Summary of Reminders/Observations of Site Inspection ¡V Contract 6

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

November 2016

3, 10, 17 and 24 November 2016.

8

Completed

December 2016

1, 8, 15, 22 and 29 December 2016

3

Completed

January 2017

5, 12, 19 and 26 January 2017

3

Completed

 

9.1.7        In the Reporting Period, no non-compliance was recorded; however, 14 observations/ reminders were recorded during the site inspections.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

Contract SS C505

9.1.8        During the Reporting Period, 13 events of the joint site inspections were undertaken at Contract SS C505 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-5 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-5          Summary of Reminders/Observations of Site Inspection ¡V Contract SS C505

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

November 2016

2, 9, 17, 23 and 30 November 2016

8

Completed

December 2016

7, 14, 20 and 28 December 2016

10

Completed

January 2017

5, 11, 18 and 23 January 2017

6

Completed

 

9.1.9        In the Reporting Period, no non-compliance was recorded; however, 24 observations/ reminders were recorded during the site inspections.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

Contract 7

9.1.10    During the Reporting Period, 13 events of the joint site inspections were undertaken at Contract SS C505 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-6 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-6          Summary of Reminders/Observations of Site Inspection ¡V Contract 7

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

November 2016

1, 8, 15, 22 and 29 November 2016

5

Completed

December 2016

6, 13, 20 and 28 December 2016

1

Completed

January 2017

3, 10, 17 and 24 January 2017

4

Completed

 

9.1.11    In the Reporting Period, no non-compliance was recorded; however, 10 observations/ reminder were recorded during the site inspections.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

Other Contracts

9.1.12    Since the construction work of Contract 5 has substantially completed and Contract 4 has not commenced, no site inspection was performed.

 


10    Non-compliance, Complaints, Notifications of Summons and Prosecutions

10.1          Status of Non-compliance Environmental Complaint, Summons and Prosecution

10.1.1    In the Reporting Period, no non-compliance, no summons and prosecution under the EM&A Programme was recorded and lodged for the Project.  However, seven (7) documented environmental complaints were received and the summary of complaint received in the Reporting Period is listed below.

 

Ÿ  4 November 2016 (Contracts 2 and 6) ¡V A complaint was received from 1823 on 4 November 2016 regarding muddy water discharged out of the construction sites near the traffic light post at the junction of Sha Tau Kok Road and Wo Keng Shan Road.  The suspected muddy water from the construction site affecting the environment and causing inconvenience to the pedestrian and public.  In our investigation, the site exits near the complaint location under the project were satisfactory.  Even though the inspection was carried out in rainy day, no muddy water discharge out of the construction site to the public roads was observed.  It is considered that the suspected muddy water discharge from the works area out to Sha Tau Kok Road and Wo Keng Shan Road was unlikely due to the project.  As advised by both contractors, road washing/ cleaning by water bowsers was provided along Wo Keng Shan Road to Sha Tau Kok Road in every normal working day (Mon-Sat), except for rainy day.  Moreover, road sweeping would be provided for the concerned roads twice a week.  To address the complainant¡¦s concern, the ET will keep closely inspection on the cleanliness situation on both roads during weekly site inspection.

Ÿ  31 October and 2 November 2017 (Contract 7) ¡V A complaint was received from 1823 regarding noise nuisance generated from the piling works for the cross-boundary bridges under CEDD's works contract at 10pm on 31 October 2016.  On 2 November 2016, the same complainant contact 1823 again and complained the same issue and a photo showing the concerned piling works was provided by the complainant. According to the complaint details, it is considered that the concerned period of the complainant would be 31 October to 2 November 2016.  As discussed with the Contractor of Contract 7 (KRSJV), the machinery appeared in Photo provided by the complainant was pre-bored socketed pile in Bridge A.  According to the site diary provided by KRSJV 7 during 31 October to 2 November 2016, apart from the operation of generator for lighting and some material preparation works without use of any PME carried out at Portion G till 22:00, there were no piling works undertaken within the construction site after 19:00 on 31 October and 1 to 2 November 2016.  Since there were no piling works undertaken by KRSJV during the concerned period, it is considered that the complaint was not valid to the Contract.  Nevertheless, KRSJV is reminded to strictly comply with CNP requirement when there would be works undertaken during restricted hours and noise mitigation measures as recommended in the EM&A Programme should be adopted as far as practicable.

Ÿ  16 November 2016 (Contract 6) - A complaint was received from 1823 on 16 November 2016 regarding construction of road bridge at higher ground level near Nga Yiu Ha Village caused water flowing to the complainant¡¦s water well and led to flooding.  Moreover, the complainant pointed out that severe noise impact was generated and uneven presidential road were formed due to the construction.  According to the complaint description, the related site area should be Bridge D and Ping Yeung Interchange under Contract 6.  In our investigation, no deficiencies due to construction under the Contract were identified and affecting Nga Yiu Ha Village.  Since the complaint location could not be found, it is considered the complaint was not evident due to the Contract and no remedial action was taken by CCKJV.  Nevertheless, ET will keep closely monitor the site condition and status of implemented mitigation measures by CCKJV.  Also, CCKJV is reminded to fully implement the mitigation measures as recommended in the EM&A Programme.

Ÿ  19 December 2016 (Contract 6) - A complaint was received from the project hotline on 19 December 2016 regarding the complainant dissatisfied with the construction noise and vibration generated by the construction works which affecting her residence.  She requested immediate follow up and associated improvement from relevant department.  The Contractor of Contract 6 (CCKJV) has immediately liaised with the complainant and it was figured out that the main concern of the complainant was the vibration generated by the sheet piling work. Therefore, it was not considered as a noise complaint and no Action level was triggered.  Besides, vibration is not an environmental aspect under EM&A programme for this complaint location.  In our investigation, CCKJV has implemented noise mitigation measures to further reduce the noise impact to the nearby resident.  To eliminate the inconvenience caused to the nearby resident, CCKJV agreed to start the sheetpile work after 9:00am every day and the concerned piling works is expected to be completed in early January 2017.  The complainant was satisfactory with the arrangement undertaken by CCKJV.  Since the most construction areas under the Contract are close to the resident of village, CCKJV was reminded to implement the mitigation measures as far as practicable as recommended in the EM&A Programme.

Ÿ  16 January 2017 (Contracts 2 & 6) - A complaint was received from 1823 on 16 January 2017 regarding muddy water found on the ground near the traffic light post at the junction of Sha Tau Kok (STK) Road and Wo Keng Shan (WKS) Road and it was suspected the muddy water was come from the construction site.  The cumulated muddy water splashed on the pedestrian when vehicle passing by which causing inconvenience to the public and the complainant requested the related department to follow up.  Joint site inspection was carried out by RE, IEC, Contractors and ET on 19 and 20 January 2017 at the suspected four (4) site exits along the Sha Tau Kok Road and Wo Keng Shan Road and the traffic light post for the complaint investigation.   As advised by both contractors, road washing/ cleaning by water bowsers was provided along Wo Keng Shan Road to Sha Tau Kok Road in every normal working day (Mon-Sat), except for rainy day.  Moreover, road sweeping would be provided for the concerned roads twice a week to maintain cleanliness of the roads.  In our investigation, no cumulated muddy water and mud trails were observed and the site exits near the complaint location were satisfactory.  It is considered that the complaint was unlikely due to the project.   To address the complainant¡¦s concern, the ET will keep closely inspection on the cleanliness situation on both roads during weekly site inspection.

Ÿ  3 January 2017 (Contract 2) - DSD conducted site inspection on 3 January 2017 at Kwan Tei River near Po Kak Tsai and suspected construction foul water was found in the branch of Kwan Tei River.  Subsequent site inspection in Kwan Tei River was conducted by DSD and EPD on 6 and 10 January 2017 respectively for further investigation.   According to DSD¡¦s inspection report, a discharge of slurry had smothered Kwan Tei River and wiped out the Firefly trial site which was meant to be a showcase of river health and the return of diverse freshwater life in the region.  On EPD¡¦s inspection on 10 January 2017, it revealed that the open channel which received discharge from the construction site was accumulated with slurry.   According to the inspection records from DSD and EPD, the source of foul water was suspected to be construction site of Mid-Vent under Contract 2.  Joint site inspection among the RE, IEC, Contractor of Contract 2 (DHK) and ET was carried out on 13 January 2017 in Mid-vent and Kwan Tei River for the complaint investigation.  In our investigation, it is considered that the complaint was caused by the inadvertent and unintentional emergency discharge by DHK in their consideration of safety of the people working inside the Adit.  To maintain the wastewater water system, DHK has already increased to the frequency of sludge removal of the wastewater treatment facility to 3-5 times daily to reduce the load of the water pump.  In our response to the complaint, DHK was advised that replacement by spare water pump should be made immediately when any malfunction event is alerted.  Moreover, additional measures for flood control such as additional retention tanks or flood gates were recommended.  In case of any emergence discharge, DHK should immediately clean up the deposition at the downstream channel to avoid water contamination spreading further downstream.  

Ÿ  25 January 2017 (Contract 2) - EPD received a complaint from the public who provided photos and video showing grey slurry was discharging to Kwan Tei River.  According to the photo and video provided, the river was polluted by the grey slurry and part of the harden slurry was deposited at the river side which seriously affecting the ecology of the river course.  The complainant requested the related department to follow up and promptly clean up the slurry. Joint site inspection among the RE, IEC, Contractor of Contract 2 (DHK) and ET was carried out on 27 January 2017, 3 and 10 February 2017 in Mid-Vent Portal works and its downstream channel for the complaint investigation.  In our investigation, the suspected complaint location was where the cleansing work was in progress, so the public might see muddy water flowing along the stream.  Nevertheless, DHK has installed silt screens and sand trap at the downstream area of the cleansing work to avoid the muddy water being washed downstream. As advised by DHK, they have cleared the sludge and DSD has no further comment during the joint inspection with DSD and AECOM on 8 February 2017.

10.1.2    Upon receipt of the complaint, follow up action has been undertaken by both Contractor promptly to resolve the complaints and deficiencies.  Investigation for the complaint was carried out by ET independently and the associated investigation reports were submitted to relevant parties.  In the Reporting Period, two (2) out of seven (7) complaints was considered as project related and remedial action have been undertaken by the relevant Contractor.

 

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

Table 10-1           Statistical Summary of Environmental Complaints

Contract No

Reporting Period

Environmental Complaint Statistics

Frequency (Project related complaint)

Cumulative since commencement of project

Complaint Nature

Project related complaint

2

Nov 2016

1

26

Ÿ  (16)Water Quality

Ÿ  (7) Dust

Ÿ  (2) Noise

Ÿ  (1) dust & noise

(5) water

(2) dust

(1) noise

Dec 2016

0

Jan 2017

3

3

Nov 2016

0

4

Ÿ (1) Dust

Ÿ (2) Water quality

Ÿ (1) Noise

0

Dec 2016

0

Jan 2017

0

5

Nov 2016

0

4

Ÿ (3) Dust

Ÿ (1) Noise

0

Dec 2016

0

Jan 2017

0

6

Nov 2016

2

30

Ÿ  (22) Water Quality

Ÿ  (6) Dust

Ÿ  (1) Noise

Ÿ  (1) Nuisance

(6) water

(2) dust

(1) Nuisance

Dec 2016

1

Jan 2017

1

7

Nov 2016

1

1

Ÿ  (1) Noise

0

Dec 2016

0

Jan 2017

0

SS C505

Nov 2016

0

2

Ÿ (1) Dust

Ÿ (1) Noise

0

Dec 2016

0

Jan 2017

0

 

Table 10-2           Statistical Summary of Environmental Summons

Contract No

Reporting Period

Environmental Summons Statistics

Frequency

Cumulative since commencement of project

Complaint Nature

Water

Air

Noise

2

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

3

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

5

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

6

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

7

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

SS C505

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

 

Table 10-3           Statistical Summary of Environmental Prosecution

Contract No

Reporting Period

Environmental Prosecution Statistics

Frequency

Cumulative since commencement of project

Complaint Nature

Water

Air

Noise

2

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

3

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

5

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

6

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

7

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

SS C505

Nov 2016

0

0

0

0

0

Dec 2016

0

0

0

0

Jan 2017

0

0

0

0

 

10.1.4    Since the construction works at the Contract 5 was substantially completed and Contract 4 has not yet commenced, no environmental complaint, summons and prosecution under the EM&A Programme are registered in the Reporting Period.


11    Implementation Status of Mitigation Measures

11.1          General Requirements

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

 

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

Table 11-1            Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Water Quality

¡P       Wastewater to be treated by the filtration systems i.e. sedimentation tank or   AquaSed before to discharge.

Air Quality

¡P       Maintain damp / wet surface on access road

¡P       Keep slow speed in the sites

¡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.

 


12    Conclusions and Recommendations

12.1          Conclusions

12.1.1    This is the 14th Quarterly EM&A Summary Report presenting the monitoring results and inspection findings for the Reporting Period from 1 November 2016 to 31 January 2017.

 

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

 

12.1.3    In the Reporting Period, no construction noise exceedances were recorded and no complaints (which triggered the Action Level exceedances) were received which triggered the Action Level exceedances.  

 

12.1.4    For water quality monitoring, a total of 55 Action Level (AL)/ Limit Level (LL) exceedances namely 25 AL/LL exceedances of turbidity and 30 LL exceedances of SS were recorded. The investigation reports for cause of exceedances were conducted by ET and submitted to relevant parties.  In the Reporting Period, 6 out of 55 exceedances were considered as project related and remedial action had undertaken by the Contractor.

 

12.1.5    Ecology monitoring for woodland compensation for the period of November to December 2016 was submitted to EPD in January 2017.  The Monitoring Report for Woodland Compensation was prepared and submitted as a stand-alone report as supplementary for the EM&A Report.

 

12.1.6    During the Reporting Period, weekly joint site inspections for Contract 2, Contract 3, Contract 6, Contract 7 and Contract SS C505 were undertaken to evaluate the site environmental performance.  No non-compliances were observed during the weekly site inspection and environmental audit of the Reporting Period, indicating the implemented mitigation measures for air quality, construction noise and water quality were effective.  Minor deficiencies found in the weekly site inspection were in general rectified within the specified deadlines.  The environmental performance of the Project was therefore considered satisfactory.

 

12.1.7    In this Reporting Period, seven (7) documented environmental complaints were received for the Project.   Upon receipt of the complaint, follow up action has been undertaken by both Contractor promptly to resolve the complaints and deficiencies.  Investigation for the complaint was carried out by ET independently and the associated investigation reports were submitted to relevant parties.  In the Reporting Period, two (2) out of seven (7) complaints were considered as project related and remedial action had undertaken by the Contractor.

 

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

 

12.2          Recommendations

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

 

12.2.2    Preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.  Moreover, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

12.2.3    Construction noise is also a key environmental issue during construction of the Project. Noise mitigation measures should be implemented in accordance with the EM&A requirement.