Contents

 

 

Chapter    Title                                                                                                                                   

1.1______ Background

1.2______ Project Organisation

1.3______ Environmental Status in the Reporting Period

2.1______ Monitoring Requirements

2.2______ Enviornmental Mitigation Measures

3.1______ Monitoring Data

3.2______ Monitoring Exceedances

6.1______ Comments

6.2______ Recommendations

6.3______ Conclusion

 

 

 

 

Appendices

Appendix A.          Project Organisation

Appendix B.          Construction Programme

Appendix C.          Environmental Mitigation Measures – Implementation Status

Appendix D.          Meteorological Data Extracted from Hong Kong Observatory

Appendix E.          Graphical Plots of the Monitoring Results

Appendix F.          Waste Flow table

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

 

Figures

Figure 1            Site Layout Plan and Monitoring Stations

 

Tables

Table 2.1:__ Summary of Impact EM&A Requirements 3

Table 3.1:__ Summary of Monitoring Data_ 4

Table 3.2:__ Summary of 24-hour TSP monitoring results 4

Table 4.1:__ Disposal/  Reuse/Storage of Excavated Waste in the Reporting Quarter 6

 

 

Executive Summary

 

 

 

This Quarterly EM&A Report presents the monitoring works conducted from 31 October 2015 to 31 January 2016.

The impact stage EM&A programme for the Project includes air quality, noise, water quality, waste, landscape and visual monitoring. The recommended environmental mitigation measures were implemented on site and regular inspections were carried out to ensure that the environmental conditions are acceptable.

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 foundation works contractor where appropriate in the reporting quarter.

Exceedance of Action and Limit Levels

There was no breach of Action or Limit levels for Air Quality (1-hour TSP and 24-hour TSP) in this reporting quarter. Noise monitoring was suspected as permission and access to the podium level of the identified noise sensitive receivers could not be granted. Liaision with the management office of the International Commerce Centre for the other location identified at the International Commerce Centre are in progress for granting access to conduct noise monitoring.

Implementation of Mitigation Measures

Construction phase weekly site inspections were carried out to confirm the implementation measures undertaken by the Contractor in the reporting quarter. The status of implementation of mitigation measures during the reporting quarter is shown in Appendix C.

Landscape and visual impact inspections were conducted as part of the abovementioned weekly site inspections during the reporting quarter. No adverse comment on landscape and visual aspects was made during these inspections.

Record of Complaints

One environmental complaint regarding construction noise was recorded in the reporting quarter.

Record of Notification of Summons and Successful Prosecutions

No notification of summons and successful prosecution were recorded in the reporting quarter.

 

1             Introduction

 

 

 

1.1            Background

In October 2015, Mott MacDonald Hong Kong Limited (MMHK) was commissioned to undertake the Environmental Team (ET) services (including environmental monitoring and audit (EM&A)) for the construction of M+ Museum Main Works at West Kowloon Cultural District (WKCD) (The Project) as part of the WKCD development. The Project Proponent is the West Kowloon Cultural District Authority (WKCDA). The construction works and EM&A programme commenced on 31 October 2015.

 

The overall works for the WKCD fall under two separate categories of Designated Project (DP) of the Environmental Impact Assessment Ordinance (EIAO), namely an “engineering feasibility study of urban development projects with a study area covering more than 20 ha or involving a total population of more than 100 000” (Item 3 of Schedule 3) and “an underpass more than 100m in length under the built areas” (Item A.9, Part I, Schedule 2). An Environmental Permit No. EP-453/2013/A (EP) was issued with respect to the “Underpass Road and Austin Road Flyover Serving the West Kowloon Cultural District” which specifically includes the abovementioned category of DP under Item A.9, Part I, Schedule 2 of the EIAO. The captioned project (i.e. The M+ Museum Mian Works at WKCD) includes part of the abovementioned underpass road located within the site boundary also falls under this same category.

 

The M+ museum development aims to provide an iconic presence for the M+ museum, semi-transparent vertical plane, housing education facilities, a public restaurant and museum offices. At ground and lower levels, generous access will be provided to the park and other West Kowloon Cultural District facilities, alongside a public resource centre, theatres, retail and dining, and back-of-house functions. Basement of the M+ museum, which is part of the WKCD integrated basement consists of the underpass road.This report focuses on main works for M+ museum.

 

The Quarterly EM&A Report is prepared in accordance with the Clause 3.4 of the Environmental Permit No. EP-453/2013/A. This Monthly EM&A Report presents the monitoring works conducted from 31 October 2015 to 31 Januray 2016. The purpose of this report is to summarise the findings in the EM&A of the project over the reporting period.

1.2            Project Organisation

The organisation chart and lines of communication with respect to the on-site environmental management structure together with the contact information of the key personnel are shown in Appendix A.

1.3            Environmental Status in the Reporting Period

During the reporting period, construction works of the Project undertaken include:

 

ˇ  Site formation

ˇ  Pile Cap Construction

ˇ  Formworks

ˇ  Concrete pouring

ˇ  Excavation

ˇ  Rebar /Earthing Installation

ˇ  Pile cap side formworks

ˇ  Underground drainage works

ˇ  Preparation of Formworks & Cast underground pipes

ˇ  Waterproofing works

ˇ  Lay Rebar

ˇ  Formworks Installation

ˇ  Slab construction

The captioned project involves part of the Schedule 2 Designated Project (DP), .i.e. “an underpass more than 100m in length under the built areas” (Item A.9, Part I, Schedule 2).  Currently, only excavation works was being carried out for the M+ Museum. The construction of the underpass will not commence until the excavation works reach its boundary. The schedule 2 DP has not been physically commenced. The Construction Works Programme of the Project is provided in Appendix B.

A layout plan of the Project is provided in Figure 1.

 

2             Summary of EM&A Requirements

 

 

 

2.1            Monitoring Requirements

In accordance with the EM&A Manual, environmental parameters including air quality, noise, landscape and visual have been monitored. The specific parameters, monitoring frequency and the respective Action and Limit levels are given in Table 2.1. Locations of the monitoring stations are provided in Figure 1.

Table 2.1:      Summary of Impact EM&A Requirements

Parameters

Descriptions

Locations

Frequencies

Action level

Limit level

Air Quality

24-Hour TSP

AM1 - International Commerce Centre

At least once every 6 days

143.6 μg/m3

260 μg/m3

1-Hour TSP

AM1 - International Commerce Centre

At least 3 times every 6 days

273.7 μg/m3

500 μg/m3

24-Hour TSP

AM2 - The Harbourside Tower 1

At least once every 6 days

151.1 μg/m3

260 μg/m3

1-Hour TSP

AM2 - The Harbourside Tower 1

At least 3 times every 6 days

274.2 μg/m3

500 μg/m3

Noise

Leq, 30 minutes

NM1- Podium level of The Harbourside Tower 1

Weekly

When one documented  omplaint is received

from any one of the sensitive receivers

75 dB(A)

Landscape & Visual

Monitor implementation of proposed mitigation measures during the construction stage

As described in Table 9.1 and 9.2 of the EM&A Manual

Bi-weekly

N/A

N/A

Given that the Project covers only a small part of the whole WKCD area (i.e. M+ Museum, Lyric Theatre Complex and respective portions of underpass road), it was proposed that the EM&A programme for the Project should only require 1 noise monitoring station and 2 air quality monitoring stations located closest to the Project area. Currently, the works under the captioned project are confined in the western part of the WKCD site. Therefore, only the monitoring stations AM1, AM2 were set up. Since NM1 was rejected, an alternative noise monitoring station was identified at the podium floor of International Commerce Centre. Liaision with the management office of the International Commerce Centre are in progress for granting access to conduct noise monitoring.

2.2            Enviornmental Mitigation Measures

Environmental mitigation measures have been recommended in the EM&A Manual. The summary of implementation status of the environmental mitigation measures are provided in Appendix C.

 

3             Summary of EM&A Monitoring Results

 

 

 

3.1            Monitoring Data

In accordance with the EM&A Manual, impact monitoring has been conducted in the reporting quarter. Noise monitoring is suspended as liaision with the management office of the International Commerce Centre are in progress for granting access to conduct noise monitoring. Meteorological data for the reporting quarter have been extracted from Hong Kong Observatory and presented in Appendix D. Monitoring data with graphical presentation for the reporting quarter are shown in Appendix E. A summary on the monitoring results are presented in Table 3.1.

Table 3.1:      Summary of Monitoring Data

Parameter

Monitoring Location

Minimum

Maximum

Average

Air Quality

 

 

 

 

1 hour TSP

AM1

51

141

82

1 hour TSP

AM2

61

172

92

24 hour TSP

AM1

45

73

55

24 hour TSP

AM2

43

107

72

3.2            Monitoring Exceedances

Summary of the exceedances in the reporting quarter is tabulated in Table 3.2.

Table 3.2:      Summary of 24-hour TSP monitoring results

Monitoring Station

Parameter

No. of Exceedance

Action Taken

Action Level

Limit Level

Air Quality

 

 

 

 

AM1

1 hour TSP

0

0

N/A

24 hour TSP

0

0

N/A

AM2

1 hour TSP

0

0

N/A

24 hour TSP

0

0

N/A

3.2.1        1-hour TSP Monitoring

All 1-hour TSP monitoring was conducted as scheduled in the reporting quarter. No Action/ Limit Level exceedance was recorded.

3.2.2        24-hour TSP Monitoring

All 24-hour TSP monitoring was conducted as scheduled in the reporting quarter. No Action/ Limit Level exceedance was recorded.

3.2.3        Landscape and Visual Monitoring

All landscape and visual impact inspections were conducted as scheduled in the reporting quarter. No adverse comment on landscape and visual aspects was recorded.

 

4             Waste Management

 

 

 

As advised by the Contractor, 97,316.3 ton of excavated waste was disposed. The details of disposal and reuse of excavated waste was shown in Table 4.1, while 156.8 ton of general refuse was disposed of at SENT landfill. 121.3 ton of metals and 0 ton of timber were collected by recycling contractors in the reporting quarter. 0 ton of inert C&D materials was reused on site. 21.4 ton of inert C&D materials (grouting material) was reused in other projects. 1 ton of chemical wastes was collected by licensed contractors in the reporting quarter.

Table 4.1:      Disposal/  Reuse/Storage of Excavated Waste in the Reporting Quarter

Site of Disposal/ Reuse/ Storage

Quantities (tonnes)

Fill Bank at Tuen Mun Area 38

11,455.0

Fill Bank at Tseung Kwan O Area 137

27,093.3

Green Valley

34,144.0

Advance Works for Shek Wu Hui Sewage Treatment Works          

11,952.0

Design and Construction of Kai Tak Cable Tunnel, CLP                 

                720.0

MTR Contract 1002 Whampoa Station and Overrun Tunnel

                5,600.0

M+ Stockpile (M66, storage site near M+)

                2,880.0

Hsin Chong Stockpile (Storage site near M+)

3,472.0

Total

97,316.3

Note: 16 tonnes per truckload is assumed.

The actual amounts of different types of waste generated by the activities of the Project in the reporting quarter are shown in Appendix F.

 

5             Environmental Non-conformance

 

 

 

 

For this reporting quarter, no environmental non-compliance and environmental related prosecution or notification of summons was received. There was one action level breached which was a noise complaint referred from EPD and no breach of Limit Levels for Air Quality monitoring.

One complaint was referred from EPD on 18 December 2015 regarding a noise complaint from a resident of Harbourside. The complainant claimed that the piling works at the M+ Museum construction site had caused noise problem. It occurred at 4pm every weekday and affected the receivers at the Harbourside.The complaint handling procedures in accordance with the EM&A Manual has been taken.  The investigation found that no piling work was conducted on site since the commencement date of the project. According to the site diary on 12 December 2015, the major work may cause noise nuisance was breaking of existing bore pile. Noise measurement at the ground floor of the Harbourside was conducted and the Leq (30min) measured was 67.0-67.6 dB(A). No excedencece was recorded. It is understood that concrete breaking may cause noise impact to public although there was no exceedance recorded. Meanwhile, noise from other construction sites adjacent to the project site might cause the cumulative noise impact. The contractor has undertaken mitigation measure to reduce the noise impact.

The cumulative statistics on complaints, notifications of summons and successful prosecutions were provided in Appendix G.

 

6             Comments, recommendations and Conclusion

 

 

 

6.1            Comments

 

Based on the observations made during site audits and landscape inspections, and monitoring results recorded during construction dust monitoring, no non-compliances and exceedances of air quality and noise limits were recorded.

6.2            Recommendations

Reviewing the implementation of the recommended mitigation measures in the EM&A Manual, it was observed that they were effective and efficient in controlling the potential impacts due to construction of the project during the reporting period. Review of the effectiveness and efficiency of the EM&A programme will be continued, and recommendations will be provided to remediate any potential impacts due to the project and to improve the EM&A programme if deficiencies of the existing EM&A programme are identified.

6.3            Conclusion

The EM&A programme as recommended in the EM&A Manual has been undertaken since the construction works commenced on 31 October 2015.

Monitoring of air quality with respect to the Project is underway. In particular, the 1-hour TSP, 24-hour TSP under monitoring have been checked against established Action and Limit levels. There was no breach of Action and Limit Levels for 1-hour TSP, 24-hour TSP in the reporting quarter. Noise monitoring was suspended as the permission and access at podium of the identified noise sensitive receiver could not be granted. Liaision with the management office of the International Commerce Centre for the other location identified at the International Commerce Centre are in progress for granting access to conduct noise monitoring.

One environmental complaint and no notifications of summons or successful prosecution were received during the reporting quarter.

Weekly construction phase site inspections and bi-weekly landscape and visual impact inspections were conducted during the reporting quarter as required. It was observed that the Contractor had implemented all possible and feasible mitigation measures to mitigate the potential environmental impacts during construction phase works.