TABLE OF CONTENTS

 

 

EXECUTIVE SUMMARY

1.     Basic Project Information.. 6

2.     Environmental Status. 1010

3.     Monitoring Results. 1111

4.     Summary of Complaints, Notification of Summons and Prosecutions  20

5.     EM&A Site Inspection.. 22

6.     Future Key Issues. 23

7.     Conclusion and Recommendations. 24

 


List of Appendices

 

A.    Alignment and Works Area for the Contract No. HY/2014/08

B.    Construction Programme

C.    Project Organization Chart

D.    Dust Event-Action Plan (EAP)

E.     Noise Event-Action Plan (EAP)

F.     Environmental Mitigation Implementation Schedule (EMIS)

G.    Monitoring Schedules of the Reporting Month

H.    Calibration Certificate (Air Monitoring)

I.       Calibration Certificate (Noise)

J.       The Certification of Laboratory with HOKLAS Accredited Analytical Tests

K.    Location Plan of Noise and Air Quality Monitoring Station

L.     Monitoring Data (Air Monitoring)

M.   Monitoring Data (Noise)

N.    Waste Flow Table

O.    Statistics on Complaint, Notifications of Summons and Successful Prosecutions

P.     Monitoring Schedule of the Coming Month

Q.    Interim Report for the Complaint


Executive Summary

 

A.1            Build King – SKEC Joint Venture (“Contractor”) commenced the construction works of Highway Department (HyD) Central Kowloon Route Contract No. HY/2014/08 – Section of Yau Ma Tei East (“The Project”) on 20 April 2018. This is the 34th monthly Environmental Monitoring and Audit (EM&A) report presenting the EM&A works carried out during the period from 1 January 2021 to 31 January 2021.

 

A.2            A summary of the construction works reported by Main Contractor for the Project during the reporting month is listed below. \

 

Construction Activities undertaken

·           Install 406mm pipe piles at Yau Ma Tei Police Station (YMTPS)

·           Construction of D-wall panels (31 panels) at Zone B

·           Site formation, predrilling, remedial works for land contamination, grout curtain wall & guide wall & D-wall at Zone B

·           Construction of Stage 3 D-wall panels, soil improvement works, sheet piling at Zone C

·           Demolition of Yau Ma Tei Specialist Clinic Extension (YMTSCE) building including substructure removal

·           Demolition of Car Park Building including Advance Works and Substructure Removal

·           Guide wall, D-wall and pipe piles at Zone D

·           Predrilling, pipe piles & TTA Stage 4 at Zone G1 (Stage 1)

·           ELS, Excavation and Construction of Pad Footing, Piers and Portal Frame for Reprovision of Gascoigne Road Flyover (RGRF)

·           CLP Cable Diversion, demolition of subway/ backfill & predrilling at Zone D

 

A.3            A summary of regular construction noise and construction dust monitoring activities in this reporting period is listed below:

Regular construction noise monitoring during normal working hours

W-N1A

W-N18, W-N25A

W-P11

W-P11-T

5 times

4 times

4 times

1 time

Construction dust (24-hour TSP) monitoring

W-A1

5 times

W-A6

4 times

Construction dust (1-hour TSP) monitoring

W-A1

15 times

 

W-A6

12 times

 

 

A.4            Noise monitoring at the Coronation Tower 1 (W-P11) was temporarily suspended on 27 January 2021 due to a case of novel coronavirus infection at the Coronation Circle on 17 January 2021. Temporary alternative noise monitoring location, W-P11-T was used to conduct noise monitoring on 27 January 2021. Details of temporary alternative monitoring location are presented in Temporary Alternative Proposal for Monitoring Station as proposed by ET and agreed by IEC dated 27 March 2020. On the other hand, the Government had expanded the specified areas for compulsory COVID-19 testing on 26 January 2021. The specified areas were recognized as high risk areas. TSP monitoring at Man Cheong Building (W-A6), noise monitoring at Hydan Place (W-N18), and noise monitoring at Prosperous Garden Block 1 (W-N25A/W-N25A-T) were temporarily suspended from 27 January 2021 to 9 February 2021 as these stations were located inside or in proximity to the specified areas.

 

A.5            Bi-weekly inspection of the implementation of landscape and visual mitigation measures was conducted on 14, 28 January 2021. Details of the audit findings and implementation status are presented in Section 5.

 

A.6            Joint weekly site inspections were conducted by representatives of Environmental Team (ET), Contractor and Engineer on 7, 14, 21, 28 January 2021. One joint site inspection with IEC was also undertaken on 14 January 2021. Details of the audit findings and implementation status are presented in Section 5.

 

A.7            Details of waste management are presented in Section 3.

 

A.8            One Action Level of construction noise was triggered during the reporting period as there was one documented complaint received on 28 January 2021 related to construction noise at Zone D2 and D3. No exceedance of Limit Level of construction noise was recorded in the reporting month. No exceedance of the Action Level and Limit Levels of 24-hour TSP and 1-hour TSP was recorded during the reporting month.

 

A.9            One noise-related complaint was received in the reporting month on 28 January 2021. After investigation with Contractor, precautionary measures had been proposed to the Contractor by ET. The interim report for the complaint is shown in Appendix Q.

 

A.10        No non-compliance was reported in the reporting month.

 

A.11        No notification of summon or prosecution was received in this reporting month.

 

A.12        A summary of the construction activities provided by Main Contractor in the next reporting month is listed below:

Construction Activities to be undertaken

·           Removal of remaining waling and struts at Zone A

·           Continue for D-wall construction at Zone B

·           Predrilling works, utilities diversion works, site formation works, guide wall, pre-boring works and D-wall construction at Zone B.

·           Phase 3 Works (Construction of New Refuse Collection Area) for Methadone Clinic

·           Continue for D-wall construction, Underpinning Works for existing Piers, CLP cable diversion at Zone C

·           Works for GRF at HKAA area: carry out ELS part B and pad footing construction and pier construction.

·           Continue for advance works (covered walkway erection, liaison/PR works, removal of asbestos and furniture) for demolition works at carpark building

·           Continue for outstanding works for Phase 2 at Temporary Public Library Cum Jade Hawker Bazaar Building (TPLCJHB) and complete decantation of existing JHB

·           CLP cable diversion, predrilling works, demolition of subway, backfilling of subway at removal of trees (pending tree felling permit), site formation works of zone 3 for noise enclosure works

·           Implement TTA along Ferry Street to commence predrilling works at west side of Zone 3 Noise Enclosure

·           Continue pre-coring works, pipe piling works and commence D-wall construction at Zone D

·           Commence Pipe Piles installation at Zone G1 (Stage 1)

·           Implement TTA Stage 3 to facilitate works along Kansu Street

·           Monitoring of instrumentation for all areas

 


1.                Basic Project Information

1.1.      Central Kowloon Route (CKR) is a 4.7 km long dual 3-lane trunk road in Central Kowloon linking Yau Ma Tei Interchange in West Kowloon with the road network on Kai Tak Development and Kowloon Bay in East Kowloon.

1.2.      The Central Kowloon Route – Design and Construction Environmental Impact Assessment Report (Register No.: AEIAR-171/2013) was approved with conditions by the Environmental Protection Department (EPD) on 11 July 2013. An Environmental Permit (EP 457/2013) was issued on 9 August 2013. Variations of EP (VEP) was subsequently applied for and the latest EP (EP-457/2013/C) was issued by EPD on 16 January 2017. A Further EP (FEP-02/457/2013/C) was issued by EPD on 5 March 2018.

1.3.      The construction of the CKR had been divided into different sections. This Contract No. HY/2014/08 – Section of Yau Ma Tei East (YMTE) covers part of the construction activities located at Yau Ma Tei under the EP and FEP which includes:

ž   Section of Yau Ma Tei East

                                  i.                             Construction of Cut-and-Cover Tunnel in compliance with all statutory requirements and the requirements specified under the Contract while maintaining the traffic with all necessary provisions

                                ii.                            Construction and subsequent handover of Yau Ma Tei Access Shaft for facilitating the access and use by the contractor of Central Kowloon Route - Central Tunnel contract

                             iii.                             Demolition of existing buildings including Yau Ma Tei Multi-storey Carpark Building, Yau Ma Tei Specialist Clinic Extension Building and Yau Ma Tei Jade Hawker Bazaars

                              iv.                             Demolition and re-provisioning of Gascoigne Road Flyover(GRF) and the underpinning works for the existing Ferry Street Flyover and Yau Ma Tei Police Station New Wing Building

                                v.                            Construction of civil provisions and coordination with the contractor of Central Kowloon Route - Tunnel Electrical & Mechanical contract

                              vi.                             Design and construction of Noise Barrier Works

                            vii.                            Prepare TTA proposals, discuss at TMLG meeting and obtain its agreement and approval/ endorsement from relevant authorities at suitable times to enable the execution of the Works

The alignment and works area for the Contract No. HY/2014/08 - are shown in Appendix A.

1.4.      A summary of the major construction activities undertaken in this reporting period is shown in Table 1.1. The construction programme is presented in Appendix B.


Table 1.1 Summary of the Construction Activities reported by Main Contractor during the Reporting Month

Construction Activities undertaken

·           Install 406mm pipe piles at YMTPS

·           Construction of D-wall panels (31 panels) at Zone B

·           Site formation, predrilling, remedial works for land contamination, grout curtain wall & guide wall & D-wall at Zone B

·           Construction of Stage 3 D-wall panels, soil improvement works, sheet piling at Zone C

·           Demolition of YMTSCE building including substructure removal

·           Demolition of Car Park Building including Advance Works and Substructure Removal

·           Guide wall, D-wall and pipe piles at Zone D

·           Predrilling, pipe piles & TTA Stage 4 at Zone G1 (Stage 1)

·           ELS, Excavation and Construction of Pad Footing, Piers and Portal Frame for RGRF

·           CLP Cable Diversion, demolition of subway/ backfill & predrilling at Zone D

1.5.      The project organisational chart specifying management structure and contact details are shown in Appendix C.

1.6.      A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2.

Table 1.2 Summary of the Status of Valid Environmental Licence

Notification, Permit and Documentations

Permit/ Licences/ Notification

/Reference No.

Valid Period

Status

Remark

From

To

Environmental Permit

EP-457/2013/C

23 Apr 2019

End of Project

Valid

-

Further Environmental Permit

FEP-02/457/2013/C

5 Mar2018

End of Project

Valid

 

Wastewater Discharge License

WT00030660-2018

28 Mar 2018

31 Mar 2023

Valid

-

Notification of Construction Works under the Air Pollution Control (Construction Dust) Regulation

429806

18 Jan 2018

End of Project

Notified

-

Chemical Waste Producer Registration

WPN5213-225-B2526-01

14 March 2018

End of Project

Valid

-

Billing Account for Disposal of Construction Waste

7029997

1 Feb 2018

End of Project

Valid

-

Construction Noise Permit

GW-RE0624-20

23 Jul 2020

 

22 Jan 2021

Valid until

22 Jan 2021

Construction Noise Permit at Zone C

GW-RE0087-21

29 Jan 2021

28 Apr 2021

Valid

GW-RE0940-20

4 Nov 2020

4 May 2021

Superseded by

GW-RE1120-20

Construction Noise Permit at Zone A, B & MCHC.

GW-RE1120-20

8 Jan 2021

7 Apr 2021

Valid

Construction Noise Permit at Zone A, B

GW-RE1004-20

27 Nov 2020

26 May 2021

Valid

Construction Noise Permit at Multi-storey Car Park Building

GW-RE0024-21

21 Jan 2021

20 Apr 2021

Valid

Construction Noise Permit at Zone D & G

Marine Dumping Permit

EP/MD/21-071

22 Nov 2020

21 May 2021

Valid

Type 1- Open Sea Disposal

EP/MD/21-083

22 Dec 2020

21 Jan 2021

Valid until

21 Jan 2021

Type 1- Open Sea Disposal (Dedicated Site) and Type 2- Confined Marine Disposal

EP/MD/21-098

22 Jan 2021

21 Feb 2021

Valid

 


2.                Environmental Status

2.1.      Environmental permit (EP) conditions under the EIAO, submission status under the EP and implementation status of mitigation measures had been reviewed and implemented on schedule. The status of required submissions under the EP (EP-457/2013/C) and FEP (FEP-02/457/2013/C) as of the reporting period for the Project are summarised in Table 2.1

Table 2.1 Summary of Status of Required Submission for EP-457/2013/C and

FEP-02/457/2013/C for the Project

EP/FEP Condition

(EP-457/2013/C)

(FEP-02/457/2013/C)

Submission

Submission date

Condition 1.12

Notification of Commencement Date of Construction of the Project

20 Mar 2018

Condition 2.3

Community Liaison Group

23 Nov 2017

Condition 2.4

Management organisation of the main construction companies

9 Feb 2018

Condition 2.5

Construction Programme and EP Submission Schedule

26 Feb 2018

Condition 2.6

Design Drawing

26 Feb 2018

Condition 2.7

Cultural Heritage Mitigation Plan

5 Oct 2019

Condition 2.8

Landscape Mitigation Plan

9 Mar 2018

Condition 2.9

Construction Noise Mitigation Measure Plan (CNMMP)

2 Dec 2020

Condition 3.3

Baseline Monitoring Report

6 Apr 2018

Condition 3.4

Monthly EM&A Report (Dec 2020)

14 Jan 2021

2.2.      Details of the major construction activities reported by Main Contractor in this reporting period are shown in Table 2.2.

Table 2.2 Summary of the Construction Activities reported by Main Contractor during the Reporting Month. PENDING

Construction activities undertaken

Remarks on progress

·           Install 406mm pipe piles at YMTPS

· 82% completion

·           Construction of D-wall panels (31 panels) at Zone B

· 90% completion

·           Site formation, predrilling, remedial works for land contamination, grout curtain wall & guide wall & D-wall at Zone B

· 23% completion

·           Construction of Stage 3 D-wall panels, soil improvement works, sheet piling at Zone C

· 55% completion

·           Demolition of YMTSCE building including substructure removal

· Completed

·           Demolition of Car Park Building including Advance Works and Substructure Removal

· 12% completion

·           Guide wall, D-wall and pipe piles at Zone D

· 8% completion

·           Predrilling, pipe piles & TTA Stage 4 at Zone G1 (Stage 1)

· 10% completion

·           ELS, Excavation and Construction of Pad Footing, Piers and Portal Frame for RGRF

· 20% completion

·           CLP Cable Diversion, demolition of subway/ backfill & predrilling at Zone D

· 20% completion

2.3.      The drawing showing the the project layout and the location of the monitoring station and  environmental sensitive receivers are attached in Appendix A and Appendix K. Co-ordinates of the monitoring location and temporary alternative monitoring location are shown in Table 2.3 and Table 2.4 respectively:

Table 2.3 Summary for the location of the monitoring station

Monitoring Location

Location ID

Latitude

Longitude

Yau Ma Tei Catholic Primary School (Hoi Wang Road)

W-A1/ W-N1A

22.313357

114.16409

Man Cheong Building

W-A6

22.308185

114.166033

Hydan Place

W-N18

22.30858

114.170185

Prosperous Garden Block 1

W-N25A

22.309846

114.168072

The Coronation Tower 1

W-P11

22.309824

114.165616

Table 2.4 Summary for the location of the temporary alternative monitoring station

Monitoring Location

Location ID

Latitude

Longitude

Roadside infront of The Hong Kong Police Force Yau Ma Tei Divisional Station

W-P11-T

22.310106

114.166211

 

 


3.                Monitoring Results

3.1.                 Monitoring Parameters

Air Quality

3.1.1.          The impact monitoring had been carried out in accordance with section 5.8 of the approved EM&A Manual to determine the 1-hour and 24-hour total suspended particulates (TSP) levels at the monitoring locations in the reporting month.

3.1.2.          The sampling frequency of at least once in every 6 days, shall be strictly observed at the monitoring stations for 24-hour TSP monitoring. For 1-hour TSP monitoring, the sampling frequency of at least 3 times in every 6 days should be undertaken when the highest dust impact occurs.

3.1.3.          General meteorological conditions (wind speed, direction and precipitation) and notes regarding any significant adjacent dust producing sources had also been recorded throughout the impact monitoring period.

Noise

3.1.4.          Construction noise level shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq). Leq (30min) shall be used as the monitoring parameter for the time period between 0700 and 1900 hours on normal weekdays.

3.1.5.          For all other time periods, Leq (5min) shall be employed for comparison with the Noise Control Ordinance (NCO) criteria.

3.1.6.          As supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

3.2.                 Monitoring Equipment

                Air Quality

3.2.1.          1-hour TSP levels and 24-hour TSP had been measured with direct reading dust meter and High Volume Samplers respectively. It has been demonstrated its capability in achieving comparable results with high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50).

3.2.2.          The 1-hour TSP meter was calibrated by the manufacturer prior to purchasing. Zero response of the instrument was checked before and after each monitoring event.  Operation of the 1-hour TSP meter followed manufacturer’s Operation and Service Manual. The 24-hour TSP meter was calibrated against firmware 80570-8100-V1.0.4, annually. Operation of the 24-hour TSP meter followed manufacturer’s Operation and Service Manual. Valid calibration certificates of dust monitoring equipment are attached in Appendix H.

3.2.3.          A summary of the equipment that was deployed for the 24- hour averaged monitoring is shown in Table 3.1. The TSP monitoring was conducted as per the schedule presented in Appendix G.

3.2.4.          The equipment used for 1-hour TSP and 24-hour TSP measurement and calibration are summarised in Table 3.1

Table 3.1 Construction Dust Monitoring Equipment

Monitoring Parameter

Monitoring Equipment

Serial Number

Date of Calibration

1-hour TSP

LD-5R Digital Dust Indicator

882106

22 Jul 2020

LD-5R Digital Dust Indicator

851819

22 Jul 2020

24-hour TSP

TE-5170X High Volume Sampler

1049

2, 15 Jan 2021

TE-5170X High Volume Sampler

1050

2, 15 Jan 2021

TE-5025A Calibration Kit

3465

23 Sep 2020

 

            Noise

3.2.5.          Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications has been used for carrying out the noise monitoring. The sound level meter has been checked using an acoustic calibrator. The wind speed and other metrological data has been recorded from Hong Kong Observatory- King’s Park meteorological station, along with portable wind speed meter stand by as back up when the information are not available from HKO.

3.2.6.          An acoustic calibrator and sound level meter using for the monitoring is within the valid period and were calibrated per year. Valid calibration certificate of noise monitoring equipment is attached in Appendix I.

3.2.7.          The details of equipment using for monitoring are listed in Table 3.2, as below:

Table 3.2 Monitoring Equipment Used in Monitoring

Monitoring Equipment

Serial Number

Date of Calibration

Nti XL2 Sound Level Meter

A2A-13548-E0

12 Dec 2020

Pulsar 105 Acoustic Calibrator

63705

6 Aug 2020

 

3.3.                 Monitoring Methodology and QA/QC results

     Air Quality

3.3.1.          The 1-hour TSP monitor, portable dust meters (Sibata Digital Dust Indicator Model LD-5R) was used for the impact monitoring.  The 1-hour TSP meters provides a real time 1-hour TSP measurement based on 90o light scattering. Three 1-hour TSP level were logged per every six days.

3.3.2.          The 24-hour TSP monitor, High Volume Samplers (Tisch TE-5170X High Volume Air Sampler) were used for the impact monitoring. The 24-hour TSP monitoring consists of the following:

u  The HVS was set at the monitoring location, with electricity supply connected and secured;  

u  HVS was calibrated before commencing the 1st measurement;

u  The filter paper was weight and provided by HOKLAS lab (Acumen Laboratory and Testing Limited and ALS Technichem (HK) Pty Ltd) before and after the sampling. Certificate of HOKLAS accredited laboratory can be referred to Appendix J;

u  The airflow over time during sampling process was recorded by the HVS.

 

3.3.3.          HVSs were free-standing with no obstruction. The following criteria were considered in the installation of the HVS:

u  Appropriate support to secure the samples against gusty wind needed to be provided the monitoring station;

u  A minimum of 2m separation from walls, parapets and penthouses was required for rooftop samplers;

u  No furnace or incinerator flues was nearby;

u  Airflow around the sampler was unrestricted; and

u  Permission could be obtained to set up the samplers and gain access to the monitoring station.

 

3.3.4.          Preparation of Filter Papers

u  Glass fiber filters were labelled and sufficient filters that were clean and without pinholes were selected;

u  All filters were equilibrated in the conditioning environment for 24 hours before weighing. The conditioning environment temperature was around 25℃ and not varied by more than ±3℃; the relative humidity (RH)was 40%; and

u  Acumen Laboratory and Testing Limited and ALS Technichem (HK) Pty Limited, as HOKLAS accredited laboratory, implemented comprehensive quality assurance and quality control programmes on the filters.

 

3.3.5.          Field Monitoring

u  The power supply was checked to ensure that the HVS was working properly;

u  The filter holder and area surrounding the filter were cleaned;

u  The filter holder was removed by loosening the foul bolts and a new filter, with stamped number upward, on a supporting screen was aligned carefully;

u  The filter was properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter;

u  The swing bolts were fastened to hold the filter holder down to the frame. The pressure applied should be sufficient to avoid air leakage at the edges;

u  The shelter lid was closed and secured with an aluminum strip;

u  The HVS was warmed- up for about 5 minutes to establish run- temperature conditions;

u  A new flow rate record sheet was inserted into the flow recorder;

u  The flow rates of the HVS was checked and adjusted to between 1.22-1.37m3min-1, which was within the range specified in the EM&A Manual (i.e. 0.6- 1.7m3min-1