Contents

 

                                                                                                                                                    Page

EXECUTIVE SUMMARY   i

1       INTRODUCTION   1

1.2         Purpose of the Report 1

1.3         Report Structure. 1

2       PROJECT INFORMATION   2

2.1         Background. 2

2.2         Site Description. 3

2.3         Construction Programme and Activities. 3

2.4         Project Organisation. 4

3       STATUS OF ENVIRONMENTAL LICENSES, NOTIFICATION AND PERMITS   5

4       AIR QUALITY MONITORING   9

4.1         Monitoring Requirement 9

4.2         Monitoring Equipment 9

4.3         Monitoring Location. 9

4.4         Monitoring Parameters, Frequency and Duration. 9

4.5         Monitoring Methodology. 10

4.6         Monitoring Schedule for the Reporting month. 10

4.7         Monitoring Results. 10

5       NOISE MONITORING   12

5.1         Monitoring Requirements. 12

5.2         Monitoring Equipment 12

5.3         Monitoring Locations. 12

5.4         Monitoring Parameters, Frequency and Duration. 12

5.5         Monitoring Methodology. 13

5.6         Monitoring Schedule for the Reporting Month. 13

5.7         Monitoring Results. 13

6       WATER MONITORING   15

7       WASTE MANAGEMENT   1618

8       ENVIRONMENTAL SITE INSPECTION AND AUDIT   1719

8.1         Site Inspection. 1719

9       IMPLEMENTATION STATUS OF ENVIRONMENTAL MITIGATION MEASURES   1820

10     SUMMARY OF EP SUBMISSION IN THE REPORTING MONTH   1921

11     ENVIRONMENTAL NON-CONFORMANCE   2022

11.1       Summary of Monitoring Exceedances. 2022

11.2       Summary of Environmental Non-Compliance. 2022

11.3       Summary of Environmental Complaints. 2022

11.4       Summary of Environmental Summon and Successful Prosecutions. 2022

12     FUTURE KEY ISSUES   2123

12.1       Construction Programme for the Next Month. 2123

12.2       Key Issues for the Coming Month. 2123

12.3       Monitoring Schedule for the Next Month. 2224

13     CONCLUSIONS AND RECOMMENDATIONS   2325

13.1       Conclusions. 2325

13.2       Recommendations. 2325

 

 

List of Tables

Table 2.1    Contact Information of Key Personnel

Table 3.1    Status of Environmental Licenses, Notifications and Permits

Table 4.1    Air Quality Monitoring Equipment

Table 4.2    Location of Air Quality Monitoring

Table 4.3    Air Quality Monitoring Parameters, Frequency and Duration

Table 4.4    Summary of 1-hr TSP Monitoring Results

Table 4.5    Summary of 24-hr TSP Monitoring Results

Table 5.1    Noise Monitoring Equipment

Table 5.2    Location of Noise Monitoring

Table 5.3    Noise Monitoring Parameters, Frequency and Duration

Table 5.4    Summary of Noise Monitoring Results

Table 8.1    Observations and Recommendations of Site Audit

Table 10.1  Status of Required Submission under Environmental Permit

 

 

List of Figures

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

Figure 2        Air and Noise Monitoring Locations

 

List of Appendices

Appendix A  Construction Programme

Appendix B  Project Organization Structure

Appendix C  Calibration Certificates of Monitoring Equipment

Appendix D  EM&A Monitoring Schedules

Appendix E  Meteorological Data Extracted from Hong Kong Observatory

Appendix F  Air Quality Monitoring Results and their Graphical Presentation

Appendix G  Summary of Event and Action Plan

Appendix H  Noise Monitoring Results and their Graphical Presentation

Appendix I    Laboratory Results for Water QualityNot Used

Appendix J   Water Quality Monitoring Results and their Graphical PresentationNot Used

Appendix K  Waste Flow Table

Appendix L   Implementation Schedule of Environmental Mitigation Measures (EMIS)

Appendix M Investigation Report for ExceedancesNot Used

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


EXECUTIVE SUMMARY

The Entrusted Portion of Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling Stage 2 (hereafter called ¡§the Project¡¨) covers part of the construction of the widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling which aimed to widen Tolo Highway and Fanling Highway to dual 4-lane carriageway in order to alleviate the current traffic congestion problems and to cope with the increasing transport demands to and from the urban areas and also cross boundary traffic.  The Project covers construction activities at Yuen Leng along the existing Fanling Highway.

 

The impact EM&A for the Project includes air quality, noise and water quality monitoring.  The EM&A programme commenced on 5 November 2013.

 

This report documents the findings of EM&A works conducted in April May 2017.  As informed by the Contractor, the major activities in the reporting month were:

 

¡P       Boundary wall construction for DSD pumping station;

¡P       Cable Detection and Trial Trenches;

¡P       Footbridge Construction;

¡P       Noise Barrier Construction;

¡P       Pier Table Construction;

¡P       Portal Construction;

¡P       Roadworks;

¡P       Viaduct Segment Erection;

¡P       Water Main Laying Works;

¡P       Gabion Wall Construction;

¡P       Installation of Noise Barrier Steel Column & Panel;

¡P       Pre-drilling for Noise Barrier;

¡P       Pit Construction for Heading Works;

¡P       Parapet Installation;

¡P       Planter Wall Construction;

¡P       Drainage Work;

¡P       Mini-pile Installation;

¡P       Construction of Profile Barrier on Viaduct deck;

¡P       Stressing of External Tendon; and

¡P Construction of Abutment WallBoundary wall construction for DSD pumping station;

¡P Cable Detection and Trial Trenches;

¡P Footbridge Construction;

¡P Noise Barrier Construction;

¡P Pier Table Construction;

¡P Portal Construction;

¡P Roadworks;

¡P Viaduct Segment Erection;

¡P Water Main Laying Works;

¡P Gabion Wall Construction;

¡P Installation of Noise Barrier Steel Column & Panel;

¡P Pre-drilling for Noise Barrier;

¡P Pit Construction for Heading Works;

¡P Parapet Installation;

¡P Planter Wall Construction;

¡P Drainage Work;

¡P Mini-pile Installation;

¡P Construction of Profile Barrier on Viaduct deck; and

¡P       Stressing of External Tendon.

Breach of Action and Limit Levels for Air Quality

No exceedance of Action and Limit Level was recorded for 24-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

 

No exceedance of Action and Limit Level was recorded for 1-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

 

Breach of Action and Limit Levels for Noise

No noise complaint was received in the reporting month, so no Action Level exceedance was recorded.  Also, no Limit Level exceedance of noise monitoring was recorded in the reporting month.

 

Breach of Action and Limit Levels for Water Quality

Two exceedances of Action Level were recorded at the monitoring location I5 in the reporting month. 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.

 

Complaint, Notification of Summons and Successful Prosecution

No complaint, notification of summons and successful prosecution was received in the reporting month.

 

Future Key Issues

The major construction works in the coming reporting month are anticipated to include:

 

¡P       Boundary Wall for Pumping Station;

¡P       Cable Detection and Trial Trenches;

¡P       Installation of Noise Barrier Steel Post, Steel Column and Panel;

¡P       Footbridge Construction;

¡P       Mini-pile Installation Works;

¡P       Noise Barrier Construction ;

¡P       Pier Table Construction;

¡P       Pipe Jacking Works for DN2200 Water Mains;

¡P       Roadworks;

¡P       Viaduct Segment Erection;

¡P       Water Main Laying Works;

¡P       Parapet Installation;

¡P       Planter Wall Construction;

¡P       Construction of Profile barrier on Viaduct Deck;

¡P       Drainage Work;

¡P       Stressing of External Tendon;

¡P       Pit construction for heading works;

¡P       Construction of abutment wall; and

¡P Gabion wall constructionBoundary Wall for Pumping Station;

¡P Cable Detection and Trial Trenches;

¡P Extended Podium Construction near Bored Pile Wall;

¡P Installation of Noise Barrier Steel Post & Panel;

¡P Footbridge Construction;

¡P Mini-pile Installation Works;

¡P Noise Barrier Construction ;

¡P Pier Table Construction ;

¡P Pipe Jacking Works for DN2200 Water Mains;

¡P Roadworks;

¡P Viaduct Segment Erection;

¡P Water Main Laying Works;

¡P Parapet Installation;

¡P Planter Wall Construction;

¡P Demolition of Existing Kiu Tau Footbridge ;

¡P Construction of Profile barrier on Viaduct Deck;

¡P Drainage Work; and

¡P       Stressing of External Tendon.

Potential environmental impacts arising from the above construction activities are anticipated to be mainly associated with construction dust, noise, water quality and waste management.

 


1                 INTRODUCTION

1.1.1          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/E in accordance with the Updated EM&A Manual (dated October 2013) for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling Stage 2.  The EM&A programme commenced on 5 November 2013.

1.2              Purpose of the Report

1.2.1          This is the monthly EM&A Report which summaries the impact monitoring results and audit findings for the Project during the reporting month of April May 2017.

1.3              Report Structure

1.3.1          This monthly EM&A Report comprises the following sections:

Section 1: Introduction

Section 2: Project Information

Section 3: Status of Environmental Licenses, Notifications and Permits

Section 4: Air Quality Monitoring

Section 5: Noise Monitoring

Section 6: Water Monitoring

Section 7: Waste Management

Section 8: Environmental Site Inspection and Audit

Section 9: Implementation Status of Environmental Mitigation Measures

Section 10: Summary of EP Submission in the Reporting Month

Section 11: Environmental Non-Conformance

Section 12: Future Key Issues

Section 13: Conclusions and Recommendations

2                 PROJECT INFORMATION

2.1              Background

2.1.1          Tolo Highway and Fanling Highway are expressways in the North East New Territories connecting Sha Tin, Tai Po and Fanling.  These highways form a vital part of the strategic Route 1, which links Hong Kong Island to Shenzhen.  At present, this section of Route 1 is a dual 3-lane carriageway.  However, at several major interchanges along this section of Route 1, the highway is only dual-2 lane.  Severe congestion is a frequent occurrence during peak periods, particularly in the Kowloon bound direction.

2.1.2          The objective of the Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling is to widen Tolo Highway and Fanling Highway to dual 4-lane carriageway in order to alleviate the current traffic congestion problems and to cope with the increasing transport demands to and from the urban areas and also cross boundary traffic.

2.1.3          The construction works for the Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling are to be delivered in 2 stages:

Stage 1 ¡V Construction works between Island House Interchange and Tai Hang; and

Stage 2 ¡V Construction works between Tai Hang and Wo Hop Shek Interchange. 

2.1.4          The construction works of Stage 1 under the EP commenced in November 2009 and was planned to be completed in December 2013 tentatively.  The works of Stage 2 was planned to commence in November 2013 and complete by end of 2016.  Hyder-Arup-Black and Veatch Joint Venture (HABVJV) was appointed by the Highways Department (HyD) as the consultants for the design and construction assignment for the Project.  Mott MacDonald Hong Kong Ltd is the Independent Environmental Checker (IEC) of both Stage 1 and Stage 2 works.

2.1.5          A portion of Stage 2 works of Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling (hereafter called ¡§the Project¡¨) is entrusted to the contractor of Contract No. CV/2012/09 Liantang / Heung Yuen Wai Boundary Control Point Site Formation and Infrastructure Works Contract 3, i.e. Chun Wo.  AECOM Asia Co Ltd was appointed by the CEDD as the consultant for the design and construction assignment for the Liantang development.

2.1.6          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.

2.2              Site Description

2.2.1          The major construction activities under the Entrusted Portion of Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling Stage 2 include:

At-Grade Road Works ¡V Temporary and permanent road formation, pipe laying, road drainage, footpath and noise barrier construction;

Demolition of existing Kiu Tau Footbridge and Footbridge Reprovision; and

Box Culvert Extension ¡V Flow diversion of existing stream, excavation, sub-base and blinding, base, wall and top slab construction.

2.2.2          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.

2.3              Construction Programme and Activities

2.3.1          The major construction activities undertaken in the reporting month are summarized below:

¡P       Boundary wall construction for DSD pumping station;

¡P       Cable Detection and Trial Trenches;

¡P       Footbridge Construction;

¡P       Noise Barrier Construction;

¡P       Pier Table Construction;

¡P       Portal Construction;

¡P       Roadworks;

¡P       Viaduct Segment Erection;

¡P       Water Main Laying Works;

¡P       Gabion Wall Construction;

¡P       Installation of Noise Barrier Steel Column & Panel;

¡P       Pre-drilling for Noise Barrier;

¡P       Pit Construction for Heading Works;

¡P       Parapet Installation;

¡P       Planter Wall Construction;

¡P       Drainage Work;

¡P       Mini-pile Installation;

¡P       Construction of Profile Barrier on Viaduct deck;

¡P       Stressing of External Tendon; and

¡P Construction of Abutment WallBoundary wall construction for DSD pumping station;

¡P Cable Detection and Trial Trenches;

¡P Footbridge Construction;

¡P Noise Barrier Construction;

¡P Pier Table Construction;

¡P Portal Construction;

¡P Roadworks;

¡P Viaduct Segment Erection;

¡P Water Main Laying Works;

¡P Gabion Wall Construction;

¡P Installation of Noise Barrier Steel Column & Panel;

¡P Pre-drilling for Noise Barrier;

¡P Pit Construction for Heading Works;

¡P Parapet Installation;

¡P Planter Wall Construction;

¡P Drainage Work;

¡P Mini-pile Installation;

¡P Construction of Profile Barrier on Viaduct deck; and

¡P       Stressing of External Tendon.

2.3.2          The construction programme is presented in Appendix A.

2.4              Project Organisation

2.4.1          The project organization structure is shown in Appendix B.  The key personnel contact names and numbers for the Project are summarised in Table 2.1Table 2.1.

Table 2.1     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

3                 STATUS OF ENVIRONMENTAL LICENSES, NOTIFICATION AND PERMITS

3.1.1          The relevant environmental licenses, permits and/or notifications on environmental protection for this Project and valid in the reporting month are summarized in Table 3.1Table 3.1.

Table 3.1     Status of Environmental Licenses, Notifications and Permits

Permit / License No. / Notification / Reference No.

Valid Period

Status

Remarks

From

To

Environmental Permit 

EP-324/2008/E

26 Jan 2017

--

Granted on 26 Jan 2017

 

Construction Noise Permit  

GW-RN0795-16

5 Nov 2016

29 Apr 2017

Valid

For falsework modification of pier AD12

GW-RN0833-16

13 Nov 2016

10 May 2017

Valid

For segment erection crossing over MTRC¡¦s Rail Track of Pier AB11 and AD12 (0115-0500)

GW-RN0871-16

29 Nov 2016

20 May 2017

Valid

For segment stitches concreting between AA11 and AA12 crossing over Fanling Highway

GW-RN0872-16

29 Nov 2016

20 May 2017

Valid

For segment stitches concreting from AB3 to AB5 crossing over Fanling Highway

GW-RN0870-16

30 Nov 2016

13 May 2017

Valid

Road marking works in Fanling Highway bothbounds

GW-RN0901-16

11 Dec 2016

4 Jun 2017

Valid

Demolition of Vehicular Bridge at Fanling Highway Southbound in Sunday and Public Holidays

GW-RN0939-16

22 Dec 2016

21 Jun 2017

Valid

For general works at southward of site office

GW-RN0002-17

8 Jan 2017

4 Jun 2017

Valid

For welding work of steel truss on Fanling Highway

GW-RN0021-17

19 Jan 2017

8 Jul 2017

Valid

For traffic road works at a section of Fanling Highway both bounds

GW-RN0029-17

19 Jan 2017

8 Jul 2017

Valid

For loading and unloading along Fanling Highway both bounds

GW-RN0040-17

25 Feb 2017

24 Aug 2017

Valid

For general works at the northward of site office

GW-RN0048-17

25 Jan 2017

16 Jun 2017

Valid

For road diversion and maintenance of Fanling Highway Southbound

GW-RN0066-17

3 Feb 2017

15 Jul 2017

Valid

For installation of steel truss of Kiu Tau Footbridge at Fanling Highway Northbound

GW-RN0069-17

15 Feb 2017

14 Aug 2017

Valid

For tractor with trailer entering the Construction Site next to MTRC¡¦s East Rail Line at Tong Hang

GW-RN0070-17

3 Feb 2017

15 Jul 2017

Valid

For installation of steel truss of Kiu Tau Footbridge at Fanling Highway Southbound

GW-RN0071-17

16 Feb 2017

15 Aug 2017

Valid

For fuel delivery and tractor with trailer entering the construction site next to MTRC¡¦s East Rail Line at Tong Hang Tung

GW-RN0078-17

2116 Feb 2017

21 Jun 2017

Valid

For dismantling of catch fence within MTR Protection Zone at Tong Hang Tung Chuen

GW-RN0084-17

8 Feb 2017

15 Jul 2017

Valid

For concreting slab of Kiu Tau Footbridge at Fanling Highway Both Bound

GW-RN0092-17

19 Feb 2017

30 Jul 2017

Valid

For loading and unloading along Fanling Highway both bounds on general holiday daytime

GW-RN0096-17

19 Feb 2017

10 Jul 2017

Valid

For road resurfacing of Fanling Highway Southbound

GW-RN0099-17

17 Feb 2017

12 Aug 2017

Valid

For road diversion and maintenance of Fanling Highway Northbound

GW-RN0111-17

26 Feb 2017

30 Jul 2017

Valid

For concreting the Bridge Deck of Kiu Tau Footbridge at Fanling Highway Both Bound

GW-RN0115-17

2 Mar 2017

26 Aug 2017

Valid

For concreting of stitch construction between AD12 and pier AB11R

GW-RN0130-17

10 Mar 2017

9 Jun 2017

Valid

For Segment Erection of Pier AD12

GW-RN0161-17

1 Apr 2017

30 Sep 2017

Valid

For segment erection across Fanling Highway

GW-RN0168-17

2 Apr 2017

25 Sep 2017

Valid

For lane shifting work at Northbound of Fanling Highway

GW-RN0185-17

1 Apr 2017

30 Sep 2017

Valid

For segment erection across Fanling Highway and MTRC¡¦s East Rail Line

GW-RN0204-17

30 Mar 2017

29 Sep 2017

Valid

For operating Water Pumping in Jacking Pit on Tai Wo Service Road West

GW-RN0213-07

6 Apr 2017

9 Sep 2017

Valid

For segment erection and rectification of the missing road markings at Fanling Highway both bounds

GW-RN0219-17

31 Mar 2017

30 Sep 2017

Valid

For segment erection crossing over MTRC¡¦s Rail Track of Pier AB11 and AD12 (1900 ¡V 2300)

GW-RN0235-17

11 Apr 2017

7 Oct 2017

Valid

For installation of parapet at AC5 to AC6

GW-RN0236-17

10 Apr 2017

16 Sep 2017

Valid

For demolition of Kiu Tau Footbridge at Fanling Highway both bounds at Tai Wo Service Road East

GW-RN0302-17

30 Apr 2017

29 Oct 2017

Valid

For segment erection and traverser stitch joints crossing above MTRC¡¦s East Rail Line

GW-RN0305-17

30 Apr 2017

30 Jul 2017

Valid

For loading and unloading along Fanling Highway both bounds on general holiday daytime

GW-RN0337-17

26 May 2017

18 Nov 2017

Valid

For segment stitches concreting and installation of parapet crossing over Fanling Highway

GW-RN0342-17

28 May 2017

20 Nov 2017

Valid

For road marking works in Fanling Highway bothbounds

Wastewater Discharge License  

WT00016832-2013

28 Aug 2013

31 Aug 2018

Valid

--

Chemical Waste Producer Registration  

5113-634-C3817-01

7 Oct 2013

--

Valid

--

Billing Account for Construction Waste Disposal

7017914

2 Aug 2013

--

Account Active

--

Notification Under Air Pollution Control (Construction Dust) Regulation

--

31 Jul 2013

30 Jul 2019

Notified

--

4                 AIR QUALITY MONITORING

4.1              Monitoring Requirement

4.1.1          In accordance with the Updated EM&A Manual, 1-hr and 24-hr total suspended particulate (TSP) levels at the designated air quality monitoring station are required.  Impact 24-hour TSP monitoring should be carried out for at least once every 6 days.  For the 1-hr TSP impact monitoring, the sampling frequency of at least three times in every 6 days should be undertaken when the highest dust impact occurs.

4.2              Monitoring Equipment

4.2.1          The 1hr- TSP and 24-hr TSP air quality monitoring were performed using a High Volume Sampler (HVS), of which its location and operation satisfy, as far as practicable, all the requirements as specified in the Updated EM&A Manual.  The brand and model of the equipment are given in Table 4.1Table 4.1.

Table 4.1     Air Quality Monitoring Equipment

Equipment

Brand and Model

Quantity

Serial Number

High Volume Sampler
(1-hr TSP and
24-hr TSP)

Tisch Total Suspended Particulate Mass Flow Controlled High Volume Air Sampler (Model No. TE-5170 MFC)

1

2359

 

4.2.2          The HVS and its accessories were maintained in good working condition, such as replacing motor brushes routinely and checking electrical wiring to ensure a continuous power supply.

4.2.3          Calibration of the HVS (five point calibration) using Calibration Kit was carried out every two months.  The HVS calibration orifice will be calibrated annually.  Calibration certificate of the TE-5025A Calibration Kit and the HVS are provided in Appendix C.

4.3              Monitoring Location

4.3.1          Air quality monitoring was conducted at the location specified in the Updated EM&A Manual.  Table 4.2Table 4.2 describes the details of the air quality monitoring station with its location as shown in Figure 2.

Table 4.2     Location of Air Quality Monitoring

Air Monitoring Station ID

Monitoring Location

Description

AM1(SR77) *

Yuen Leng 2 *

Residential, Ground floor

Remark:

*       Location and Station / ASR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling

 

4.4              Monitoring Parameters, Frequency and Duration

4.4.1          Table 4.3Table 4.3 summarizes the monitoring parameters, frequency and duration of impact TSP monitoring.

Table 4.3     Air Quality Monitoring Parameters, Frequency and Duration

Parameter

Frequency and Duration

1-hour TSP

At least three times in every 6 days should be undertaken when the highest dust impact occur

24-hour TSP

Once every 6 days

 

4.5              Monitoring Methodology

1-hr and 24-hr TSP Monitoring

4.5.1          With the consideration of criteria stated in the Updated EM&A Manual, the HVS was installed in the vicinity of the air sensitive receivers.

4.5.2          The relevant data including temperature, pressure, weather conditions, elapsed-time meter reading for the start and stop of the sampler, identification and weight of the filter paper, and any special phenomena observed were recorded.  The weather information was referenced from Hong Kong Observatory (http://www.weather.gov.hk/wxinfo/pastwx/extractc.htm).

4.5.3          A HOKLAS accredited laboratory with constant temperature and humidity control, and equipped with necessary measuring and conditioning instruments, to handle the 24-hr TSP samples, was employed for sample analysis.

4.5.4          Filter papers of size 8"x10" were labelled before sampling.  They were inspected to be clean with no pin holes and conditioned in a humidity controlled chamber for over 24-hr and were pre-weighed before use for the sampling.

4.5.5          The 24-hr TSP levels were measured by following the standard high volume sampling method for TSP as set out in the Title 40 of the United States Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.  TSP was sampled by drawing air through a conditioned, pre-weighted filter paper inside the HVS at a controlled air flow rate.  After 24-hr sampling, the filter papers loaded with dust were kept in a clean and tightly sealed plastic bag, and then returned to the laboratory for reconditioning in the humidity controlled chamber followed by accurate weighing by an electronic balance with a readout down to 0.1 mg.

4.5.6          All the collected samples were kept in a good condition for 6 months before disposal.

4.5.7          For 1-hr TSP monitoring, monitoring methodology is the same as 24-hr TSP monitoring which has been presented in Section 4.5.1 to Section 4.5.6, but with sampling period changed to 1 hour.

4.6              Monitoring Schedule for the Reporting month

4.6.1          The schedule for environmental monitoring for the reporting month is provided in Appendix D.  Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix E.

4.7              Monitoring Results

4.7.1          The monitoring results for 1-hr and 24-hr TSP are summarised in Table 4.4Table 4.4 and Table 4.5Table 4.5 respectively.  Detailed air quality monitoring results and the graphical presentation of air quality monitoring data for the current and past three reporting months are presented in Appendix F.

Table 4.4     Summary of 1-hr TSP Monitoring Results

ASR ID

Average (mg/m3)

Range (mg/m3)

Action Level  (mg/m3)

Limit Level (mg/m3)

AM1(SR77) *

117.6149.0

100.4111.9 ¡V 173.1198.5

292.7

500

Remark:

*       Station / ASR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling

 

Table 4.5     Summary of 24-hr TSP Monitoring Results

ASR ID

Average (mg/m3)

Range (mg/m3)

Action Level  (mg/m3)

Limit Level (mg/m3)

AM1(SR77) *

59.264.9

52.939.4 ¡V 68.182.7

170.3

260

Remark:

*       Station / ASR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling

 

4.7.2          No exceedance of Action and Limit Level was recorded for 24-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

4.7.3          No exceedance of Action and Limit Level was recorded for 1-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

4.7.4          The Event and Action Plan for the occurrence of non-compliance of the air quality criteria is annexed in Appendix G.

5                 NOISE MONITORING

5.1              Monitoring Requirements

5.1.1          In accordance with the Updated EM&A Manual, the impact noise monitoring frequency shall depend on the scale of the construction activities.  An initial guide on the regular monitoring frequency should be at least once per week when noise generating activities are underway.

5.2              Monitoring Equipment

5.2.1          Noise monitoring was performed using a sound level meter at the monitoring station.  The sound level meter deployed complies with the International Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications.  An acoustic calibrator was deployed to check the sound level meter at a known sound pressure level.  The brand and model of the equipment is given in Table 5.1Table 5.1.

Table 5.1     Noise Monitoring Equipment

Equipment

Brand and Model

Quantity

Serial Number

Sound Level Calibrator

Rion (Model No. NC-74)

1

34857296

Sound Level Meter

B&K (Model No. 2238)

1

2694908

 

5.2.2          The sound level calibrator and sound level meter were verified by a certified laboratory every year.  Calibration certificates of the sound level meter and acoustic calibrator are provided in Appendix C.

5.3              Monitoring Locations

5.3.1          Impact noise monitoring was conducted at the location specified in the Updated EM&A Manual.  Table 5.2Table 5.2 describes the details of the noise monitoring station with its location as shown in Figure 2.

Table 5.2     Location of Noise Monitoring

NSR ID

Monitoring Location

Description

M1(SR77) *

Yuen Leng 2 *

Residential, Ground floor

Remark:   

*       Location and Station / NSR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling

 

5.4              Monitoring Parameters, Frequency and Duration

5.4.1          Table 5.3Table 5.3 summarizes the monitoring parameters, frequency and duration of impact noise monitoring.

Table 5.3     Noise Monitoring Parameters, Frequency and Duration

Parameter and Duration

Frequency

30-mins measurement at between 0700 and 1900 on normal weekdays.  Leq, L10 and L90 would be recorded.

At least once per week

 

5.5              Monitoring Methodology

5.5.1          The monitoring procedures are summarised as follows:

¡P            The sound level meter was set on a tripod at a height of 1.2 m above the ground for  free-field measurements at monitoring station SR77;

¡P            The battery condition was checked to ensure good functioning of the meter;

¡P            Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:

¡P            Frequency weighting: A

¡P            Time weighting: Fast

¡P            Parameters: Leq, L10 and L90

¡P            Time measurement: Leq(30-minutes) during non-restricted hours i.e. 07:00 ¡V 19:00 hrs on normal weekdays

¡P            Prior to and after each noise measurement, the meter was calibrated using the acoustic calibrator for 94dB(A) at 1000 Hz.  If the difference in the calibration level before and after measurement was more than 1dB(A), the measurement would be considered invalid and repeat of noise measurement would be required after re-calibration or repair of the equipment.

¡P            At the end of the monitoring period, the Leq, L10 and L90 were recorded.  In addition, site conditions and noise sources were recorded on a standard record sheet.

¡P            A façade correction of +3dB (A) shall be made to the noise parameter obtained by free field measurement.

5.6              Monitoring Schedule for the Reporting Month

5.6.1          The schedule for environmental monitoring for the reporting month is provided in Appendix D.  Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix E.

5.7              Monitoring Results

5.7.1          The monitoring results for noise are summarized in Table 5.4Table 5.4 and the monitoring results and the graphical presentation of noise level for the current and past three reporting months are presented in Appendix H.

Table 5.4     Summary of Noise Monitoring Results

Noise Monitoring Station ID

Average, dB(A), Leq (30min) (2)

Range, dB(A),
Leq (30min)
(2)

Action Level

Limit Level, dB(A)

M1(SR77) (1)

68.167.0

6665.0 ¡V 69.568.0

When one documented valid complaint is received

75

Remark:

(1)   Station / NSR ID as identified in Updated EM&A Manual / EIA Report for Widening of Tolo Highway/Fanling Highway between Island House Interchange and Fanling

(2)   +3dB(A) façade correction included

 

5.7.2          Major noise sources during the noise monitoring included construction activities of the Project and that along Tai Wo Service Road East, and nearby traffic noise.

5.7.3          No noise complaint was received in the reporting month, so no Action Level exceedance was recorded.  Also, no Limit Level exceedance of noise monitoring was recorded in the reporting month.

5.7.4          The Event and Action Plan for the occurrence of non-compliance of the noise criteria is annexed in Appendix G.

6                 WATER MONITORING

1.1                    Introduction

1.1.1                    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.  Due to the loading requirement of a fresh water main under the box culvert, installation of the base slab at Box Culvert ID4 has been commenced in December 2016. 

1.1.1                    The 4-week post construction water quality monitoring has been commenced after the completion of box culvert works on 31 March 2017 in the same manner as the impact monitoring.

1.1.1                    The post construction water quality monitoring were carried out eleven (11) times in the reporting month. The water quality monitoring was taken on 3, 5, 7, 10, 12, 18, 20, 22, 24, 26 and 28 April 2017.

1.1                    Monitoring Requirements

1.1.1                    In accordance with the Updated EM&A Manual, during the course of the culvert extension works, monitoring shall be undertaken on three occasions per week.  The interval between two sets of monitoring shall not be less than 36 hours except where there are exceedances of Action and/or Limit levels. The results are included in Appendix I and Appendix J.

1.1                    Monitoring Equipment

1.1.1                    The equipment used in the water quality monitoring programme is summarised in Table 6.1.

Table 6.1     Water Quality Monitoring Equipment

Equipment

Model and Make

Turbidity meter

HACH Model 2100Q is

(Serial No. 13120C004242)

Multifunctional Meter (Scope of Test: Conductivity, Dissolved Oxygen, pH, Salinity and Temperature)

Professional Plus

(Serial No. 10D101566)

 

1.1.1                    The monitoring instruments were checked, calibrated and certified by a laboratory accredited under HOKLAS before use and subsequently re-calibrated at 3-monthly intervals throughout all stages of the water quality monitoring.  Copies of the calibration certificates for the water quality monitoring equipment are attached in Appendix C.

1.1                    Monitoring Parameters, Frequency and Duration

1.1.1                    Measurements for each monitoring station were conducted 3 days per week for the reporting month.  Table 6.2 summarises the monitoring parameters, frequency and duration of the baseline water quality monitoring.

Table 6.2     Water Quality Monitoring Parameters, Frequency and Duration

Monitoring Stations

Parameter, unit

Frequency

Control Stations: C3a and C3b

Impact Station: I5

- Depth, m

- Temperature, ¢XC

- Salinity, ppt

- pH

- DO, mg/L

- DO Saturation, %

- Turbidity, NTU

- SS, mg/L

3 days per week

 

1.1                    Monitoring Locations

1.1.1                    According to the Updated EM&A Manual, measurements were taken at all impact and control stations as summarised in Table 6.3.  The locations of the monitoring stations are shown in Figure 3. 

Table 6.3   Locations of Water Quality Monitoring

Station

Description

Easting

Northing

I5

Downstream of Ma Wat River

(Yuen Leng)

833931

837859

C3a

Upstream of Ma Wat River

(Nam Wa Po)

833816

837644

C3b

Upstream of Ma Wat River

(Yuen Leng)

833931

837736

 

1.1                    Monitoring Methodology

Instrumentation

1.1.1                    The parameters of in-situ measurements included water depth, dissolved oxygen (DO), dissolved oxygen saturation (DOS), turbidity level, pH value and water temperature.

Operating/Analytical Procedures

1.1.1                    Since water depths for all monitoring stations were less than 1m throughout the whole baseline measurement period, only mid-depth level was monitored.

1.1.1                    At each monitoring station, at least duplicate readings of dissolved oxygen content and turbidity were taken. The probes were retrieved out of the water after the first measurement and then re-deployed for the second measurement.

1.1.1                    Water samples were collected by the water sampler and filled into polyethylene bottles for laboratory determination of suspended solids.  Sampling bottles were pre-rinsed with the same water samples, and filled up to the rim, capped tightly and labeled immediately.  The sample bottles were then packed into a cool-box kept at 4¢XC, and delivered to a HOKLAS accredited laboratory, Enviro Labs Ltd. (HOKLAS no.: 128) for analysis.  The results for laboratory analysis of suspended solids are presented in Appendix I.

1.1                    Monitoring Schedule for the Reporting Month

1.1.1                    The schedule for environmental monitoring for the reporting month is provided in Appendix D.  Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix E.

1.1                    Monitoring Results

1.1.1                    The water quality criteria, namely Action and Limit Levels, as specified in the Updated EM&A Manual are shown in Table 6.4.

Table 6.4     Action and Limit Levels for Water Quality Monitoring

Parameters

Action

Limit

DO in mg/L

6.7 mg/L

4 mg/L or 40% saturation at 15 degree Celsius

SS in mg/L

42.6 mg/L or 120% of upstream control station¡¦s SS of the same day

46.8 mg/L or 130% of upstream station¡¦s SS of the same day and specific sensitive receiver water quality requirements

Turbidity (Tby) in NTU

81.9NTU or 120% of upstream control station¡¦s Tby of the same day

91.9NTU or 130% of upstream control station¡¦s Tby of the same day

The box culvert works had been completed in March 2017. Notes:

For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits.

For SS and Tby, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

 

1.1.1                    The detailed water quality monitoring results and the graphical presentation of water quality monitoring data for the current and past three reporting months are presented in Appendix J.

1.1.1                    The possible influences in monitoring results were suspected to be natural variation.

1.1.1                    Two (2) exceedance of Action Level on Dissolved Oxygen was recorded at the monitoring location I5 on 20 April 2017 and 24 April 2017. Investigation for the exceedance was conducted which concluded that the exceedance was not related to the project works. The investigation report is presented in Appendix M.

1.1.1                    The Event and Action Plan for the occurrence of non-compliance of the water quality criteria is annexed in Appendix G.The 4-week post-construction water quality monitoring at I5 was completed in 28 April 2017.

6.1.1           

 

7                 WASTE MANAGEMENT

7.1.1          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.

7.1.2          As advised by the Contractor, a total of 4971,003m3 of excavated material has been generated. 372903m3 of inert C&D materials was disposed of at public fill to Tuen Mun Area 38. 12036m3 inert C&D materials were reused on site.  7105m3 of general refuse was disposed of at North East New Territories (NENT) Landfill. 4m3No plastic was collected by recycling contractor in the reporting month.  No paper/cardboard packaging was collected by recycling contractor in the reporting month.  N767m3o of metal was collected by recycling contractor in the reporting month.  No chemical waste was collected by licensed contractor in the reporting period. Details of the waste management data are presented in Appendix K.

8                 ENVIRONMENTAL SITE INSPECTION AND AUDIT

8.1              Site Inspection

8.1.1          Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for the Project.  A summary of the site inspection is provided in Appendix L.

8.1.2          In the reporting month, 54 site inspections were carried out on 32, 108, 1917, 22  and 249 April May 2017.  The one held on 249 April May 2017 was a joint inspection with the IEC, ER, ET and Contractor.  No site inspection was conducted by the EPD during the reporting month.  No non-compliance was recorded during the site inspection.  A summary of the reminders and observations recorded during the site inspections are presented in Table 8.1Table 8.1.

Table 8.1     Observations and Recommendations of Site Audit

Parameters

Date

Observations and Recommendations

Follow-up

Water Quality

N/A

N/A

N/A

Air Quality

N/A

N/A

N/A

Noise

N/A

N/A

N/A

Water Quality

N/A27 Mar 2017(1)

N/ASite surface runoff is observed at SA12. The contract is reminded to enhance the de-silting facilities to treat surface runoff before discharge.

N/AA pump has been installed at the manhole to pump construction site runoff to sedimentation tank for de-silting treatment before discharge on 3 Apr 2017. 

Waste / Chemical Managem-ent

17 May 2017N/A

Chemical drum should be put on drip tray. N/A

The chemical drum has been removed from the site during 22 May 2017 site inspection. N/A

Landscape & Visual

N/A

N/A

N/A

Permits / Licenses

N/A

N/A

N/A

Note: (1) Observations may refer to last month¡¦s Monthly EM&A Report (March 2017).

9                 IMPLEMENTATION STATUS OF ENVIRONMENTAL MITIGATION MEASURES

9.1.1          The Contractor has implemented the relevant environmental mitigation measures as specified in the EIA Reports, EPs and updated EM&A Manual.  The implementation status of environmental mitigation measures during the reporting period is summarized in Appendix L.

10             SUMMARY OF EP SUBMISSION IN THE REPORTING MONTH

10.1.1       The status of the required submission under the EP during the reporting period is summarized in Table 10.1Table 10.1.

Table 10.1   Status of Required Submission under Environmental Permit

EP Condition

Submission

Submission Date

Condition 3.3

Monthly EM&A Report for March April 2017

12 April May 2017

 

                

11             ENVIRONMENTAL NON-CONFORMANCE

11.1           Summary of Monitoring Exceedances

11.1.1       No exceedance of Action and Limit Level was recorded for 24-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

11.1.2       No exceedance of Action and Limit Level was recorded for 1-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

11.1.3       No noise complaint was received in the reporting month, so no Action Level exceedance was recorded.  Also, no Limit Level exceedance of noise monitoring was recorded in the reporting month. 

11.1.4       The 4-week post-construction water quality monitoring at I5 was completed in April 2017.

1.1.1                    Two (2) exceedance of Action Level was recorded for water quality monitoring at the monitoring location I5 in the reporting month. No Limit Level exceedance was recorded for water quality monitoring at the monitoring location I5 in the reporting month.

11.2           Summary of Environmental Non-Compliance

11.2.1       No environmental non-compliance was recorded in the reporting month.  The cumulative statistics are provided in Appendix N.

11.3           Summary of Environmental Complaints

11.3.1       No environmental complaints were received in the reporting month.  The cumulative statistics are provided in Appendix N.

11.4           Summary of Environmental Summon and Successful Prosecutions

11.4.1       No environmental related prosecution or notification of summons was received in the reporting month.  The cumulative statistics are provided in Appendix N.

 

 

12             FUTURE KEY ISSUES

12.1           Construction Programme for the Next Month

12.1.1       The major construction works in the coming reporting month are anticipated to include:

¡P       Boundary Wall for Pumping Station;

¡P       Cable Detection and Trial Trenches;

¡P       Installation of Noise Barrier Steel Post, Steel Column and Panel;

¡P       Footbridge Construction;

¡P       Mini-pile Installation Works;

¡P       Noise Barrier Construction ;

¡P       Pier Table Construction;

¡P       Pipe Jacking Works for DN2200 Water Mains;

¡P       Roadworks;

¡P       Viaduct Segment Erection;

¡P       Water Main Laying Works;

¡P       Parapet Installation;

¡P       Planter Wall Construction;

¡P       Construction of Profile barrier on Viaduct Deck;

¡P       Drainage Work;

¡P       Stressing of External Tendon;

¡P       Pit construction for heading works;

¡P       Construction of abutment wall; and

¡P Gabion wall construction.Boundary Wall for Pumping Station;

¡P Cable Detection and Trial Trenches;

¡P Extended Podium Construction near Bored Pile Wall;

¡P Installation of Noise Barrier Steel Post & Panel;

¡P Footbridge Construction;

¡P Mini-pile Installation Works;

¡P Noise Barrier Construction ;

¡P Pier Table Construction ;

¡P Pipe Jacking Works for DN2200 Water Mains;

¡P Roadworks;

¡P Viaduct Segment Erection;

¡P Water Main Laying Works;

¡P Parapet Installation;

¡P Planter Wall Construction;

¡P Demolition of Existing Kiu Tau Footbridge ;

¡P Construction of Profile barrier on Viaduct Deck;

¡P Drainage Work; and

¡P       Stressing of External Tendon.

 

12.2           Key Issues for the Coming Month

12.2.1       Key issues to be considered in the coming month are anticipated to include:

¡P       Site discharges should be properly collected and treated prior to discharge;

¡P       Properly maintain all drainage facilities and wheel washing facilities on site;

¡P       Expose slopes and dusty stockpile should be covered up properly if no work will be conducted;

¡P       Operation of construction plant should be sequenced where practicable;

¡P       Good housekeeping should be maintained and general refuse should be removed regularly;

¡P       Chemical waste should be stored, handled and disposed of properly;

¡P       Properly store and label oils and chemicals on site; and

¡P       A spill response procedure shall be in place and absorption material available for minor spillages.

12.3           Monitoring Schedule for the Next Month

12.3.1       The tentative schedule for environmental monitoring for the coming month is provided in Appendix D.

13             CONCLUSIONS AND RECOMMENDATIONS

13.1           Conclusions

13.1.1       The construction phase EM&A programme of the Project commenced on 5 November 2013.

13.1.2       The 1-hr TSP, 24-hr TSP, noise and water quality monitoring were carried out in the reporting period.

13.1.3       No exceedance of Action and Limit Level was recorded for 24-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

13.1.4       No exceedance of Action and Limit Level was recorded for 1-hour TSP monitoring at the monitoring location AM1(SR77) in the reporting month.

13.1.5       No noise complaint was received in the reporting month, so no Action Level exceedance was recorded.  Also, no Limit Level exceedance of noise monitoring was recorded in the reporting month.

13.1.6       The 4-week post-construction water quality monitoring at I5 was completed in April 2017.

1.1.1                    Two (2) exceedance of Action Level on Dissolved Oxygen were recorded for water quality monitoring at the monitoring location I5 in the reporting month.

13.1.7       FourFive (45) environmental site inspections were carried out in the reporting month.  Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site audit.

13.2           Recommendations

13.2.1       According to the environmental site inspections performed in the reporting month, the following recommendation was provided:

Water QualityWaste/ Chemical Management

¡P        Ensure the de-silting facilities are cleared frequently to prevent direct discharge of construction site runoffEnsure all chemical drums on site to be placed on drip tray.