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Contents

Executive summary

This Quarterly EM&A Report presents the monitoring works at both the main works of M+ Museum and Lyric Theatre Complex conducted from 1 November 2020 to 31 January 2021.

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 contractors where appropriate in the reporting quarter.

Exceedance of Action and Limit Levels

One Action Level exceedance (due to noise related environmental complaint) with no Limit Level exceedance of construction noise was recorded in the reporting quarter. There was no breach of Action and Limit levels for Air Quality (1-hour TSP and 24-hour TSP) in this reporting quarter.

Implementation of Mitigation Measures

Construction phase weekly site inspections were carried out to confirm the implementation measures undertaken by the Contractors 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 were made during these inspections.

Record of Complaints

Three complaints were received during the reporting quarter.

Record of Notifications of Summons and Successful Prosecutions

No notifications of summons and successful prosecutions were recorded in the reporting quarter.

1 Introduction

1.1 Background

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 (Contract No.: CC/2015/3A/022) and Lyric Theatre Complex including the Foundation Works (Contract No.: CC/2015/3A/014), L1 Contract (Contract No. CC/2017/3A/030) and L2 Contract (Contract No. CC/2017/3A/031) 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 for M+ Museum and Lyric Theatre Complex commenced on 31 October 2015 and 1 March 2016 respectively. 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 1 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/B (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 projects include 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.

The 1,200-seat Lyric Theatre Complex will be Hong Kong’s first world-class facility for dance performances, including ballet, contemporary and Chinese dance forms. In the run up to the opening of further major performing arts venues in the WKCD, it will also be used for a wide variety of performing arts events including drama, opera and musical performances. The Lyric Theatre Complex will act as a platform for Hong Kong’s leading arts organisations and be a new major venue to show programmes from Asia and worldwide.

The Quarterly EM&A Report is prepared in accordance with the Clause 3.4 of the Environmental Permit No. EP-453/2013/B. This Quarterly EM&A Report presents the monitoring works conducted from 1 November 2020 to 31 January 2021. 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 Status of Construction Works in the Reporting Period

During the reporting period, construction works at M+ Museum undertaken include:

● M+

– Timber finishes works

– Make good

– T&C (MEP)

– Landscaping works at 3/F (planting)

– Cleaning works

– FSD inspection

– Defects Works (Timber finishes/ furniture installation, make good, landscaping works at G/F & 3/F (planting), cleaning works, hand-over)

● CSF

– Make good

– Cleaning works

– Hand-over

– FSD inspection

– Defects Works (make good, furniture installation, cleaning works, hand-over)

● RDE

– MEP installation works

– T&C, ABWF works & make good

– G/F paving works

– FSD & BD inspection

During the reporting period, construction works at L1 undertaken include:

● Excavation and Lateral Support works

● Extended basement structure construction

● Box culvert outfall to Victoria Harbour (PIW works)

● Austin Road West Lay-by (PIW Works)

● Cofferdam at the M+ Museum to LTC interface on the waterfront

During the reporting period, construction works at L2 undertaken include:

● Visual Mock Up

– VMU interior work

● LTC construction

Structure

– Install and erection tower crane

– Falsework and Formwork Erection

– Reinforcement work

– Concrete work

BS Installation

● ASDA and Lyric Theatre Promenade

– Structure works

● Remaining Works for M+ Promenade South

– Site Clearance

– Construct concrete slats deck

● DSC Cofferdam (Cofferdam A)

– Remedial work to Existing Puddle Flange in pump cell

– Connection of DCS pipes

– Lay Pipe bedding

– Install DCS pipes/valve/fitting

– Construction of valve chamber, thrust blocks etc.

– Back fill and removal of struts

● Modification to Existing Pump Cell

– ABWF works

● Extended Basement

– AWBF works

– BS installation

● Vibration Isolation Spring System Installation

– Install Remaining Spring

● Underpass and Associated Area

– ABWF works

– BS Installation

● M+ Day 2 Works

– Demolish ex carriageway

– Conc. duct- Excavate to formation level

– Conc. duct - form openings in ex structure

● Water Main at Promenade Installation

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 and Mitigation Measures

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- The Harbourside Tower 1	Weekly	When one documented complaint 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

In the context of the monitoring activities at M+ Museum and the Lyric Complex, three monitoring stations had been considered, including AM1 (International Commerce Centre), AM2 (The Harbourside Tower 1) for air monitoring, and NM1 (The Harbourside Tower 1) for noise monitoring. Other monitoring locations were so far away from M+ Museum and the Lyric Complex and could not be representative for impact monitoring.

The Harbourside management office formally rejected our proposal of setting up air quality and noise monitoring equipment on its premises at the podium level of Tower 1 (AM2/NM1) on 10 November 2015. Nevertheless, suitable air quality monitoring location at AM2 was identified on the ground floor in front of The Harbourside Tower 1, which is at the same location as that of baseline monitoring for consistency. No management approval is required at the ground floor for conducting the air monitoring. However, the electricity supply at AM2 was suspended from 31 August 2016 and was no longer available. In order to have a more secure electricity supply, an alternative air monitoring location (AM2A) was identified at Austin Road West opposite to The Harbourside Tower 1, which is close to Lyric Theatre Complex site entrance. This alternative air monitoring location was approved by EPD on 28 September 2016. Due to works programme, the air monitoring location AM2A has been relocated to the alternative monitoring location AM2B at the 1st floor of Gammon’s site office, which was approved by EPD on 21 February 2019.

Alternative noise monitoring location was identified at The Arch (NM2); however, The Arch management office formally rejected our proposal of setting up noise monitoring equipment on its premises on 23 November 2015. On the other hand, noise monitoring at G/F of Harbourside could not be representative. However, approval from the management office of the International Commerce Centre has been granted on 29 February 2016 for conducting noise monitoring at the alternative noise monitoring location identified at the podium floor (NM1A) which is free from screening to the construction activities.

In short, 2 air quality monitoring stations and 1 noise impact monitoring station were confirmed for the impact monitoring.

2.2 Environmental Mitigation Measures

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

3 Summary of EM&A Results

3.1 Monitoring Data

In accordance with the EM&A Manual, impact monitoring has been conducted in the reporting quarter. 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	26	88	55
1 hour TSP	AM2B	49	91	75
24 hour TSP	AM1	16	62	36
24 hour TSP	AM2B	40	143	75
Construction Noise
Leq(30min)	NM1A	68	69	68

3.2 Monitoring Exceedances

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

Table 3.2: Summary of Exceedances

Monitoring Station	Parameter	No. of Exceedance		Action Taken
		Action Level	Limit Level
Air Quality
AM1	1 hour TSP	0	0	N/A
AM1	24 hour TSP	0	0	N/A
AM2B	1 hour TSP	0	0	N/A
AM2B	24 hour TSP	0	0	N/A
Construction Noise
NM1A	Leq(30min)	1	0	The Contractor had strengthened the implementation of noise mitigation measures

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 exceedance of Action Level of 24-hour TSP for Air Quality was recorded, while there was no Limit Level exceedance.

3.2.3 Construction Noise Monitoring

All construction noise monitoring was conducted as scheduled in the reporting quarter. One Action Level exceedance (due to noise related environmental complaint) with no Limit Level exceedance of construction noise was recorded in the reporting quarter.

3.2.4 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 were recorded.

4 Waste Management

4.1 M+ Museum

As advised by the Contractor, 0 tonne, 0 tonne and 46.71 tonnes of inert C&D material were disposed of as public fill to Chai Wan Public Fill Barging Point, Tuen Mun Area 38 and Tseung Kwan O Area 137 Public Fill respectively in the reporting quarter, while 526.4 tonnes of general refuse were disposed of at SENT landfill. 183.2 tonnes of metals, 0.6 tonnes of paper/cardboard packaging, 0.0 tonne of plastic and 0.0 tonne of timber were collected by recycling contractors in the reporting quarter. 0.0 tonne of inert C&D materials was reused on site. 59.5 tonnes of inert C&D materials were reused in other projects and 57.6 tonnes of inert C&D materials were disposed to sorting facility. 0.0 tonne of chemical wastes was collected by licensed contractors in the reporting quarter.

The actual amounts of different types of waste generated by the activities of construction works at M+ Museum in the reporting quarter are shown in Appendix F.

4.2 Lyric Theatre Complex

As advised by the Contractor (L1 and L2 Contract), 2399.23 tonnes, 713.36 tonnes and 0.00 tonne of inert C&D material were disposed of as public fill to Tseung Kwan O Area 137, Tuen Mun Area 38, and Chai Wan Public Fill Barging Point respectively in the reporting quarter, while 1310.6 tonnes of general refuse were disposed of at SENT and WENT landfill. 1787.1 tonnes of metals, 0.4 tonnes of paper/cardboard packaging, 0.5 tonnes of plastic and 0.0 tonne of timber were collected by recycling contractors in the reporting quarter. 0.0 tonne of inert C&D materials was reused on site. 475.8 tonnes of fill materials were imported for use at site and 0.0 tonne of inert C&D materials was reused in other projects. 6.7 tonnes of inert C&D materials were disposed to sorting facility and 0.0 tonne of chemical wastes was collected by licensed contractors in the reporting quarter.

The actual amounts of different types of waste generated by the activities of construction works at Lyric Theatre Complex in the reporting quarter are shown in Appendix F.

5 Environmental Non-conformance

One Action Level exceedance (due to noise related environmental complaints) with no Limit Level exceedance of construction noise was recorded in the reporting quarter. There was no breach of Action or Limit Levels for Air Quality monitoring in the reporting quarter.

Three complaints were received in the reporting quarter. No notifications of summons and successful prosecutions were received in the reporting quarter.

The first complaint was a letter from the District Council Member Mr Derek Hung dated 11 Nov 2020 mentioned that he received a complaint from The Harbourside regarding noise nuisance (e.g pilling) starting from 7a.m. from WKCD projects. Therefore, he requested the noisy construction works to be undertaken after 9a.m. to reduce nuisance to nearby residents.

Investigation at M+ Museum and Lyric Theatre Complex construction sites revealed that no noisy works including pilling works were conducted during 7a.m. - 9a.m during the concerned period, therefore, the complaint was believed to be non-project related.

The second complaint was referred by EPD in relation to WKCD construction activities. On 10 December 2020, EPD sent a photo taken by the public complainant showing the drilling machine installed at WKCD site area. EPD officer requested to advise the type of Powered Mechanical Equipment (PME) adopted and any noise mitigation measure was adopted in the photo.

After the investigation, it was concluded that the complaint was not related to M+ Museum and Lyric Theatre Complex.

The third complaint was received on 27 January 2021. WKCD has received an enquiry from the office of Mr. Derek Hung (YTMDC member) about the noise from WKCD site. A resident from The Harbourside, who has reflected the noise problem since March 2020, expressed that he/she has been affected by the construction noise around 7:15 am on 27 January 2021. The resident understood that the working hours permitted by government is 7am-7pm, except public holidays. However, he/she would like to seek if we could reduce noise disturbance, especially before 9am.

The investigation revealed that the construction noise could be attributable to the Lyric Theatre Complex (L2 Contract) which involved the use of breaker at around 7:10 a.m. on 27 January 2021. Subsequently, specific mitigation measures have been devised and implemented on top of the pre-existing regular noise mitigation measures.

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, landscape inspections, and construction dust and noise monitoring results, no non-compliances and exceedances of air quality were recorded. One Action Level exceedance (due to noise related environmental complaints) with no Limit Level exceedance of construction noise was recorded in the reporting quarter.

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 continue, 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 of M+ Museum main works commenced on 31 October 2015, and the construction of Lyric Theatre Complex commenced on 1 March 2016.

Monitoring of air quality and noise with respect to the Project is underway. In particular, the 1-hour TSP, 24-hour TSP and noise level (as Leq, 30 minutes) under monitoring have been checked against established Action and Limit levels. One Action Level exceedance (due to noise related environmental complaint) with no Limit Level exceedance was recorded in the reporting period. There was no breach of Action and Limit levels for Air Quality (1-hour TSP and 24-hour TSP) in this reporting quarter.

Three complaints were received in the reporting quarter. No notifications of summons and successful prosecutions 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.