Contents

 

                                                                                                                                                    Page

EXECUTIVE SUMMARY                                                                                                                 i

1         INTRODUCTION AND PROJECT INFORMATION                                                           1

1.1            Background.............................................................................................................. 1

1.2            Construction Programme and Activities.................................................................. 1

1.3            Project Organisation................................................................................................ 2

1.4            Purpose of the Report.............................................................................................. 2

2         SUMMARY OF EM&A REQUIREMENTS                                                                           2

2.1            Monitoring Requirements......................................................................................... 2

2.2            Environmental Mitigation Measures........................................................................ 3

3         SUMMARY OF EM&A Monitoring Data                                                                              3

3.1            Monitoring Data........................................................................................................ 3

3.2            Summary of Monitoring Exceedances.................................................................... 3

4         WASTE MANAGEMENT                                                                                                      4

5         ENVIRONMENTAL NON-CONFORMANCE                                                                     54

6         CONCLUSION, COMMENTS AND RECOMMENDATIONS                                             5

 

 

List of Tables

Table 1.1    Contact Information of Key Personnel

Table 2.1    Monitoring Parameter

Table 3.1    Summary of Monitoring Data in the Reporting Quarter

Table 3.2    Summary of Exceedance Events in the Reporting Quarter

 

 

List of Figures

Figure 1        Demarcation of Entrusted Portion of Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling – Stage 2

Figure 2        Environmental Monitoring Locations

 

 

List of Appendices

Appendix A  Construction Programme

Appendix B  Project Organization Structure

Appendix C  Implementation Schedule of Environmental Mitigation Measures (EMIS)

Appendix D  Meteorological Data Extracted from Hong Kong Observatory

Appendix E  Environmental Monitoring Data for Air Quality and Noise

Appendix F  Waste Flow Table

Appendix G  Statistics on Complaints, Notifications of Summons and Successful Prosecutions

 

EXECUTIVE SUMMARY

This report documents the findings of EM&A works conducted in the quarter between 1 August February November 2017 and 301 October AprilJanuary 20178.

 

The impact stage EM&A programme for the Project includes air quality and noise monitoring.

 

The EM&A programme was carried out by the ET in accordance with the EM&A Manual requirements.  It is concluded from the environmental monitoring and audit works that adequate environmental mitigation measures have been implemented by the civil works contractors where appropriate in the reporting quarter.

 

In the reporting quarter, nooneno exceedance events wereas recorded. No necessary remedial actions have been taken.

 

No environmental non-compliance was recorded in the reporting quarter.  NoOneNo environmental complaints wasere received  on 28 December 2017 in the reporting quarter.  No environmental related prosecution or notification of summons was received in the reporting quarter.

 

The box culvert works have been partially completed by the end of March 2014 except the last construction activity, installation of a base slab at Box Culvert ID4. The installation of the base slab at Box Culvert ID4 was commenced in December 2016 and has been completed in March 2017.

 

The 4-week post construction water quality monitoring has been commenced and completed in April 2017.

 

 

 

 

1                 INTRODUCTION AND PROJECT INFORMATION

1.1              Background

1.1.1          The Project is a Designated Project under the Environmental Impact Assessment Ordinance (EIAO) (Cap. 499).  An Environmental Impact Assessment (EIA) Report together with an Environmental Monitoring and Audit (EM&A) Manual were approved on 14 July 2000 (Register Number: EIA-043/2000).  The Project is governed by an Environmental Permit (EP) (EP-324/2008) which was granted on 23 December 2008.  A variation of EP (VEP) was applied and the VEP (EP-324/2008/A) was subsequently granted on 31 January 2012.  An additional VEP has been applied on 24 February 2014 and the VEP (EP-324/2008/B) was subsequently granted on 17 March 2014.  Furthermore, an additional VEP has been applied on 9 March 2015 and the VEP (EP-324/2008/C) was subsequently granted on 27 March 2015.  The previous VEP (EP-324/2008/D) was granted on 27 August 2015. The current VEP (EP-324/2008/E) was granted on 26 January 2017.

1.1.2          Chun Wo Construction & Engineering Co Ltd (Chun Wo) was commissioned by the Civil Engineering and Development Department (CEDD) as the Civil Contractor for the Entrusted Portion of Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.  Meinhardt Infrastructure & Environment Ltd (MIEL) has been appointed by Chun Wo as the Environmental Team (ET) to fulfill the corresponding EM&A requirements pursuant to Environmental Permit No. EP-324/2008/D in accordance with the Updated EM&A Manual (dated March 2015) for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.  The EM&A programme commenced in 5 November 2013.

1.1.3          Figure 1 shows the works areas for the Entrusted Portion of Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.

1.2              Construction Programme and Activities

1.2.1          The construction programme is presented in Appendix A.  The major construction activities undertaken in the reporting quarter are summarized below:

·         Cable Detection and Trial Trenches;Boundary wall construction for DSD pumping station;

·         Remaining Works on New Kiu Tau Footbridge;Cable detection and trial trenches;

·         Noise Barrier Construction; Remaining Works on New Kiu Tau Footbridge;

·         Road Pavement Works;works; Noise barrier construction;

·         Viaduct segment erection;Viaduct Segment Erection;Roadworks;

·         Demolition of Existing Kiu Tau Vehicular Bridge;Water Main Laying Works;Viaduct segment erection;

·         Water main laying works (on Grade and on bridge deck)Installation of Noise Barrier Steel Column & Panel;;Water main laying works;

·         Installation of Noise barrier steel column & panelParapet Installation on Bridge Deck;;Installation of Noise barrier steel column & panel;

·         Parapet Installation on bridge deckDrainage Work;;Parapet Installation on bridge deck;

·         Drainage WorkMini-pile Installation;;

·         Mini-pile installation;Drainage Work;

·         Construction of Profile Barrier & Planter Wall on Bridge Deck;Mini-pile installation;

·         Stressing of External Tendon;;  andConstruction of profile barrier & Planter wall on Bridge deck;

·         Construction of Retaining Wall Behind Abutment;

·         Bitumen paving on bridge deck;

·         Installation of deck cell light inside the bridge deck;

·         Installation of movement joint on the bridge

·         Construction of retaining wall; and

·         Landscaping works.

  and backfillStressing of external tendon;

·            Waterproofing works on Bridge deck; andConstruction of abutment wall; and

·            Stitching works for longitudinal stitch of viaduct.Trenchless excavation.

1.3              Project Organisation

1.3.1          The project organization structure is shown in Appendix B.  The key personnel contact names and numbers for the Project, together with the general enquiry hotline, are summarised in Table 1.1Table 1.1.

Table 1.1     Contact Information of Key Personnel

Party

Role

Position

Name

Telephone

Fax

AECOM

Engineer’s Representative

Senior Resident Engineer

Mr. Alan Lee

2171 3303

2171 3498

Resident Engineer (Environmental)

Mr. Perry Yam

2171 3350

Mott MacDonald

Independent Environmental Checker (IEC)

IEC

Mr. Steven Tang

2828 5920

2827 1823

Chun Wo

Contractor

Site Agent

Mr. Daniel Ho

2638 6144

2638 7077

Environmental Officer

Ms. Tiffany Tsang

2638 6150

Meinhardt

Environmental Team (ET)

ET Leader

Mr. Fredrick Leong

2859 1739

2540 1580

Enquiry Hotline

General Enquiry

--

Ms Helena Mak

6355 1731

--

 

1.4              Purpose of the Report

1.4.1          This is the Quarterly EM&A Report which summaries the impact monitoring results and audit findings for the Project during the reporting period between 11 August FebruaryNovember 20187 and 301 October AprilJanuary 20178.

2                 SUMMARY OF EM&A REQUIREMENTS

2.1              Monitoring Requirements

2.1.1          In accordance with the Updated EM&A Manual, environmental parameters including Air Quality and Noise have been monitored.  The specific parameters, monitoring frequency and the respective Action and Limit Levels are given in Table 2.1Table 2.1 and the location of the monitoring station is shown in the Figure 2.

Table 2.1     Monitoring Parameter

Parameter

Unit

Action Level

Limit Level

Frequency

Air Quality

1-hour TSP

mg/m3

292.7

500

Three times every 6 days

24-hour TSP

mg/m3

170.3

260

Once every 6 days

Construction Noise

Leq 30min

dB(A)

When one documented valid complaint is received

75

Once every Week

 

Temporary Suspension of Box Culvert Works and Water Quality Monitoring

2.1.2          The box culvert works have been completed in the end of March 2017. The 4-week post construction water quality monitoring has been completed in the end of April 2017 in the same manner as the impact monitoring.

2.2              Environmental Mitigation Measures

2.2.1          Environmental mitigation measures have been recommended in the EM&A Manual and are given in Appendix C.  The implementation status for the reporting quarter is also given in the Appendix.

3                 SUMMARY OF EM&A MONITORING DATA

3.1              Monitoring Data

3.1.1          Monitoring has been conducted in accordance with the specification in the EM&A Manual in the reporting quarter.  Meteorological data for the reporting quarter have been extracted from Hong Kong Observatory and are given in Appendix D.  Monitoring data with graphical presentation for the reporting quarter have been given in Appendix E.  A summary on the monitoring results has also been given in Table 3.1Table 3.1.

Table 3.1     Summary of Monitoring Data in the Reporting Quarter

Monitoring Location

Minimum

Maximum

Average

Air Quality

1 hour Total Suspended Particulate

SR77

    91.284.291.2mg/m3

235.4247.0197.3mg/m3

140.7164.6137.9mg/m3

24 hour Total Suspended Particulate

SR77

49.135.312.1mg/m3

138.4202.797.1mg/m3

79.695.665.2mg/m3

Construction Noise

SR77

64.0689.5dB(A)

74.074.5dB(A)

69.072.28dB(A)

 

3.2              Summary of Monitoring Exceedances

3.2.1          The number of exceedances event recorded in the reporting quarter is summarized in Table 3.2Table 3.2.

Table 3.2     Summary of Exceedance Events in the Reporting Quarter

Parameter

Criteria

Number of Exceedances Events

Number of Project Related Exceedance Events

Air Quality

1-hour Total Suspended Particulates

Action Level

0

0

Limit Level

0

0

24-hour Total Suspended Particulates

Action Level

010

0

Limit Level

0

0

Construction Noise

Leq 30min

Action Level

0

0

Limit Level

0

0

Limit Level

0

0

 

3.2.2          No exceedance of 1-hour TSP air quality monitoring was recorded at SR77 in the reporting quarter. OneNoNo exceedance of Action Level and no exceedance for Llimit level for 1-hour TSP and 24-hour TSP air monitoring wasere recorded at SR77 in the reporting quarter.

3.2.3          No exceedance of noise monitoring was recorded at SR77 in the reporting quarter.

3.2.4          The Contractor has been reminded to strengthen the mitigation measures including:

Air Quality

·        Watering within site and vehicle washing facilities shall be enhanced

·         Stockpiling shall be covered coverage with impervious sheeting and/or sufficient water spraying for dust suppression.

·         Water spraying shall be enhanced to avoid dust generation.

·  Stockpiling shall be covered to avoid dust generation

Water Quality

·     Preventive measure shall be enhanced to prevent soil/ rock from engineering the WSD area.

·  Drainage facilities shall be well maintained and inspected regularly

·     Enhancement to water pumping pipe at NB 67 shall be adopted.

Noise

·     NRMM label shall be provided for all relevant mobile machinery on site. 

·        Preventive measure shall be enhanced to prevent soil/ rock from engineering the WSD area.

·      Implement sufficient mitigation measures to avoid runoff leakage from road works areas and divert site effluent to wastewater treatment facilities

 

Waste / Chemical Management

·  Housekeeping shall be enhanced and refuse shall be collected regularly

·  Chemical drum should be placed on drip tray.

·  General housekeeping shall be enhanced throughout the construction site.

 

4                 WASTE MANAGEMENT

4.1.1          The Contractor has registered as a chemical waste producer of the Project.  The C&D materials and waste sorting were carried out on-site.  Receptacles were provided for general refuse collection.

4.1.2          During the reporting quarter, a total of 5,9018,5407,102m3 of excavated material has been generated. 4,3525,2896,563m3 of inert C&D materials was disposed of at public fill to Tuen Mun Area 38, while 630450m3 of inert C&D materials was reused on site.  335305425m3 of general refuse was disposed of at North East New Territories (NENT) Landfill.  No plastics and no paper/cardboard packaging were collected by recycling contractor in the reporting quarter.  No metals were collected by recycling contractor in the reporting quarter.  NoNo33m3 chemical waste was collected by licensed contractor in the reporting quarter.  Details of the waste management data are presented in Appendix F.

5                 ENVIRONMENTAL NON-CONFORMANCE

5.1.1          No environmental non-compliance was recorded in the reporting quarter.  No environmental complaint was received.  No environmental related prosecution or notification of summons was received in the reporting quarter.  The summary for the non-compliance, complaints and prosecutions is provided in Appendix G.

1.1.1                    No environmental non-compliance was recorded in the reporting quarter. An environmental complaint regarding air quality near Kau Lung Hang and Hong Lok Yuen was received on 28 December 2017 in the reporting quarter. The ET had conducted investigation for the complaint which concluded that it was unlikely due to the construction works of this Project.  No environmental complaint was received.  No environmental related prosecution or notification of summons was received in the reporting quarter.  The summary for the non-compliance, complaints and prosecutions is provided in Appendix G.

6                 CONCLUSION, COMMENTS AND RECOMMENDATIONS

6.1.1          The EM&A programme was carried out by the ET in accordance with the EM&A Manual requirements.  It is concluded from the environmental monitoring and audit works that adequate environmental mitigation measures have been implemented by the civil works contractors where appropriate in the reporting quarter.

6.1.2          In the reporting quarter, no oneno exceedance events wereas recorded.

6.1.3          No environmental non-compliance was recorded in the reporting quarter.  No environmental complaints were received in the reporting quarter.  No environmental related prosecution or notification of summons was received in the reporting quarter.

6.1.4          The box culvert works have been completed in the end of March 2017. The 4-week post construction water quality monitoring has been completed in the end of April 2017 in the same manner as the impact monitoring