Contents
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 Foundation Works (Contract No.: CC/2015/3A/014) 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 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/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.
This Monthly EM&A Report presents the monitoring works at both the main works of M+ Museum and foundation works of Lyric Theatre Complex conducted from 1 May to 31 May 2017.
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) and Noise in this reporting month.
Implementation of Mitigation Measures
Construction phase weekly site inspections were carried out on 4, 11, 18 and 25 May 2017 for M+ Museum and 2, 10, 17, 24 and 31 May 2017 for Lyric Theatre Complex to confirm the implementation measures undertaken by the Contractors in the reporting month The outcomes are presented in Section 4 and the status of implementation of mitigation measures in the site is shown in Appendix J.
Landscape and visual impact inspections were conducted as part of the abovementioned weekly site inspections during the reporting month. No adverse comment on landscape and visual aspects was made during these inspections.
EPD site inspection with Contractor was conducted on 19 and 26 May 2017 at Lyric Theatre Complex. No adverse comments were received.
Record of Complaints
One environmental complaint regarding site overflow with muddy water discharged into the sea at Lyric Theatre Complex was recorded in the reporting month.
Record of Notification of Summons and Successful Prosecutions
No notification of summons and successful prosecution were recorded in the reporting month.
Future Key Issues
The major site works at M+ Museum scheduled to be commissioned in the coming month include:
● Construction of 3/F, 2/F, 1M/F, 1/F, G/F, LG/F, B1 slab
● Construction of column from B1 to LGF, LGF to GF, G/F to 1/F, 1/F to 1M/F, 1M/F to 2/F, 2/F to 3/F
● Installation of mega struss
● ABWF work at DCS
● E&M work at B2/F and SPS
● Construction of B1 slab and beam and Roof Beam and slab at ICP
● Sheet Pile Installation for seawater outfall pipe between Ch0+66 to Ch0+108
● Storm Drainage at Portion M45
● Sewerage work at Portion L08
The major site works at Lyric Theatre Complex scheduled to be commissioned in the coming month include:
● Installation of Monitoring Instrumentation
● Pipe Pile Construction
● Pumping Test
● Pile Loading Test
Potential environmental impacts due to the construction activities, including air quality, noise, water quality, waste, landscape and visual, will be monitored or reviewed. The recommended environmental mitigation measures shall be implemented on site and regular inspections as required will be carried out to ensure that the environmental conditions are acceptable.
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 Foundation Works (Contract No.: CC/2015/3A/014) 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 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/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 Monthly EM&A Report is prepared in accordance with the Condition 3.4 of the Environmental Permit No. EP-453/2013/B. This Monthly EM&A Report presents the monitoring works at both the main works of M+ Museum and foundation works of Lyric Theatre Complex conducted from 1 May to 31 May 2017. 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 at M+ Museum undertaken include:
● Construction of 2/F, 1M/F, 1/F, G/F, LG/F, B1 slab;
● Construction of column from B2 to B1, B1 to LGF, LGF to GF, G/F to 1/F, 1/F to 1M/F, 1M/F to 2/F
● Installation of mega truss
● ABWF work at DCS
● E&M work at B2/F and SPS
● Construction of B1 slab and beam and Roof Beam and slab at ICP
● Sheet Pile Installation for seawater outfall pipe between Ch0+66 to Ch0+108
● Storm Drainage at Portion M45
● Sewerage work at Portion L08
During the reporting period, construction works at Lyric Theatre Complex undertaken include:
● Installation of Monitoring Instrumentation
● Pipe Pile Construction
● Bored Pile Construction
● Pile Loading Test
The Construction Works Programmes of M+ Museum and Lyric Theatre Complex are provided in Appendix B. A layout plan of the Project is provided in Figure 1. Please refer to Table 4.3 on the status of the environmental licenses.
1.4
Summary of EM&A Requirements
The EM&A programme requires environmental monitoring of air quality, noise, landscape and visual as specified in the approved EM&A Manual.
A summary of impact EM&A requirements is presented in Table 1.1.
Table 1.1: Summary of Impact EM&A Requirements
|
Parameters |
Descriptions |
Locations |
Frequencies |
|
Air Quality |
24-Hour TSP |
AM1 - International Commerce Centre |
At least once every 6 days |
|
1-Hour TSP |
AM1 - International Commerce Centre |
At least 3 times every 6 days |
|
|
24-Hour TSP |
AM2A – Austin Road West opposite to The Harbourside Tower 1 |
At least once every 6 days |
|
|
1-Hour TSP |
AM2A – Austin Road West opposite to The Harbourside Tower 1 |
At least 3 times every 6 days |
|
|
Noise |
Leq, 30 minutes |
NM1A- Podium level of The Harbourside Tower 1 |
Weekly |
|
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 |
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 and NM1 were set up. Other monitoring locations are too far away (i.e. AM3 to AM5 and NM2 to NM5) are not included in this EM&A programme until the construction of the corresponding area commences.
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. 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. 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. Noise monitoring at G/F of Harbourside will not be representative. 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. Therefore, 2 air quality monitoring stations and 1 noise impact monitoring station were confirmed for the impact monitoring.
The Environmental Quality Performance Limits for air quality and noise are shown in Appendix C.
The Event and Action Plan for air quality, construction noise. landscape and visual are shown in Appendix D.
The EM&A programme followed the recommended mitigation measures in the EM&A Manual. The EM&A requirements as well as the summary of implementation status of the environmental mitigation measures are provided in Appendix J.
2
Impact Monitoring Methodology
2.1
Introduction
For air quality and noise, the monitoring methodology, including the monitoring locations, monitoring equipment used, monitoring parameters, and frequency and duration etc., for air quality and noise are detailed in this Section. The environmental monitoring schedules for the reporting period and the tentative monitoring Schedule for the coming month are provided in Appendix E.
For landscape and audit impact, the relevant EM&A monitoring requirements and details are also presented in this Section.
2.2
Air Quality
2.2.1
Monitoring Parameters, Frequency and Duration
Table 2.1 summarizes the monitoring parameters, frequency and duration of the TSP monitoring.
Table 2.1: Air Quality Monitoring Parameters, Frequency and Duration
|
Parameter |
Frequency |
Duration |
|
24-hour TSP |
At least once in every six-days |
24 hours |
|
1-hour TSP |
At least 3 times every six-days |
60 minutes |
2.2.2
Monitoring Locations
Currently, the works under the captioned project are confined in the western part of the WKCD site. Therefore, only the monitoring stations AM1 and AM2A were set up at the proposed locations in accordance with updated EM&A Manual. Location of the monitoring station is given in Table 2.2 and shown in Figure 1.
Table 2.2: Air Quality Monitoring Station
|
Monitoring Station |
Location |
|
AM1 |
International Commerce Centre (ICC) |
|
AM2A |
Austin Road West opposite to The Harbourside Tower 1 |
2.2.3
Monitoring Equipment
Continuous 24-hour TSP air quality monitoring was conducted using High Volume Sampler (HVS) (Model: TE-5170) located at the designated monitoring station. The HVS meets all the requirements stated in of the EM&A Manual. Portable direct reading dust meter was used to carry out the 1-hour TSP monitoring. Table 2.3 summarizes the equipment used in the impact air quality monitoring. Copies of the calibration certificates for the HVS, calibration kit and portable dust meters are attached in Appendix F.
Table 2.3: TSP Monitoring Equipment
|
Equipment |
Model |
|
24-hour TSP monitoring |
|
|
High Volume Sampler |
TE-5170 (Serial No.: 0767 and 8919) |
|
Calibrator |
TE-5025A (Orifice I.D.: 2454) |
|
1-hour TSP monitoring |
|
|
Portable direct reading dust meter |
Sibata LD-3B (Serial No.: 276020 and 2Z6240) |
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 F.
The 1-hour TSP monitoring should be determined periodically (e.g. annually) by the HVS to check the validity and accuracy of the results measured by direct reading method.
2.2.4
Monitoring
Methodology
24-hour TSP Monitoring
Installation
The HVS was installed at the site boundary. The following criteria were considered in the installation of the HVS.
– A horizontal platform with appropriate support to secure the sampler against gusty wind was provided.
– The distance between the HVS and any obstacles, such as buildings, was at least twice the height that the obstacle protrudes above the HVS.
– A minimum of 2 metres separation from walls, parapets and penthouse was required for rooftop sampler.
– A minimum of 2 metres separation from any supporting structure, measured horizontally was required.
– No furnace or incinerator flues or building vent were nearby.
– Airflow around the sampler was unrestricted.
– The sampler has been more than 20 metres from any drip line.
– Permission was obtained to set up the sampler and to obtain access to the monitoring station.
– A secured supply of electricity is needed to operate the sampler.
Preparation of Filter Papers
– Glass fibre filters were labelled and sufficient filters that were clean and without pinholes were selected.
– The filters used are specified to have a minimum collection efficiency of 99 percent for 0.3 µm (DOP) particles.
– All filters were equilibrated in the conditioning environment for 24 hours before weighing. The conditioning environment temperature was around 25 °C and not variable by more than ±3 °C with relative humidity (RH) < 50% and was not variable by more than ±5 %. A convenient working RH was 40%. All preparation of filters was done by Hong Kong Laboratory Accreditation Scheme (HOKLAS) accredited laboratory.
Field Monitoring Procedures
– The power supply was checked to ensure the HVS works properly.
– The filter holder and the area surrounding the filter were cleaned.
– The filter holder was removed by loosening the four bolts and a new filter, with stamped number upward, on a supporting screen was aligned carefully.
– The filter was properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter.
– 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.
– The shelter lid was closed and was secured with the aluminium strip.
– The HVS was warmed-up for about 5 minutes to establish run-temperature conditions.
– A new flow rate record sheet was set into the flow recorder.
– The flow rate of the HVS was checked and adjusted at around 1.3 m3/min. The range specified in the EM&A Manual was between 0.6-1.7 m3/min.
– The programmable timer was set for a sampling period of 24 hours, and the starting time, weather condition and the filter number were recorded.
– The initial elapsed time was recorded.
– At the end of sampling, the sampled filter was removed carefully and folded in half length so that only surfaces with collected particulate matter were in contact.
– It was then placed in a clean plastic envelope and sealed.
– All monitoring information was recorded on a standard data sheet.
– Filters were sent to a Hong Kong Laboratory Accreditation Scheme (HOKLAS) accredited laboratory for analysis.
Maintenance and Calibration
– The HVS and its accessories are maintained in good working condition, such as replacing motor brushes routinely and checking electrical wiring to ensure a continuous power supply.
– HVSs were calibrated upon installation and thereafter at bi-monthly intervals. The calibration kits were calibrated annually.
– Calibration records for HVS and calibration kit are shown in Appendix F.
1-hour TSP Monitoring
Field Monitoring
The measuring procedures of the 1-hour dust meter are in accordance with the Manufacturer’s Instruction Manual as follows:
– Turn the power on.
– Close the air collecting opening cover.
– Push the “TIME SETTING” switch to [BG].
– Push “START/STOP” switch to perform background measurement for 6 seconds.
– Turn the knob at SENSI ADJ position to insert the light scattering plate.
– Leave the equipment for 1 minute upon “SPAN CHECK” is indicated in the display.
– Push “START/STOP” switch to perform automatic sensitivity adjustment. This measurement takes 1 minute.
– Pull out the knob and return it to MEASURE position.
– Setting time period of 1 hour for the 1-hour TSP measurement.
– Push “START/STOP” to start the 1-hour TSP measurement.
– Regular checking of the time period setting to ensure monitoring time of 1 hour.
Maintenance and Calibration
– The 1-hour dust meter would be checked at 3-month intervals and calibrated at 1-year intervals throughout all stages of the air quality monitoring.
– Calibration records for direct dust meters are shown in Appendix F.
Weather Condition
– Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix H.
2.3
Noise
2.3.1
Monitoring Parameters, Frequency and Duration
Table 2.4 summarizes the monitoring parameters, frequency and duration of noise monitoring. The noise in A-weighted levels Leq, L10 and L90 are recorded in a 30-minute interval between 0700 and 1900 hours.
Table 2.4: Noise Monitoring Parameters, Period and Frequency
|
Time Period |
Parameters |
Frequency |
|
Daytime on normal weekdays (0700-1900 hours) |
Leq(30 min), L90(30 min) & L10 (30 min) |
Once every week |
2.3.2
Monitoring
Location
Currently, the works under the captioned project are confined in the western part of the WKCD site. Therefore, only the monitoring station NM1A was set up at the proposed location in accordance with updated EM&A Manual. Location of the monitoring station is given in Table 2.5 and shown in Figure 1.
Table 2.5: Noise Monitoring Station
|
Monitoring Station |
Location |
|
NM1A |
Podium floor of International Commerce Centre (ICC) |
2.3.3
Monitoring
Equipment
Integrating Sound Level Meter was used for noise monitoring. It was a Type 1 sound level meter capable of giving a continuous readout of the noise level readings including equivalent continuous sound pressure level (LAeq) and percentile sound pressure level (Lx). They comply with International Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1). Table 2.6 summarizes the noise monitoring equipment model being used.
Table 2.6: Noise Monitoring Equipments
|
Monitoring Station |
Equipment Model |
|
|
Integrating Sound Level Meter |
Calibrator |
|
|
NM1A |
Rion NL-18 (Serial No.00360030) |
Rion NC-73 (Serial No.10997142) |
2.3.4
Monitoring
Methodology
Field Monitoring
– The microphone of the Sound Level Meter was set at least 1.2 m above the ground.
– Free Field measurement was made at the monitoring locations.
– The battery condition was checked to ensure the correct functioning of the meter.
– Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:
- frequency weighting: A
- time weighting: Fast
- time measurement: 30 minutes intervals (between 0700-1900 on normal weekdays)
– Prior to and after each noise measurement, the meter was calibrated using a Calibrator for 94 dB at 1 kHz. If the difference in the calibration level before and after measurement was more than 1 dB, the measurement would be considered invalid and has to be repeated after re-calibration or repair of the equipment.
– During the monitoring period, the Leq, L10 and L90 were recorded. In addition, any site observations and noise sources were recorded on a standard record sheet.
– A correction of +3dB(A) was made to the free field measurements.
Maintenance and Calibration
– The microphone head of the sound level meter and calibrator is cleaned with soft cloth at quarterly intervals.
– The sound level meter and calibrator are sent to the supplier or HOKLAS laboratory to check and calibrate at yearly intervals.
– Calibration records are shown in Appendix F.
Weather Condition
– Meteorological data extracted from Hong Kong Observatory for the reporting month is provided in Appendix H.
2.4
Landscape and
Visual
2.4.1
Monitoring
Program
Table 2.7 details the monitoring program (as proposed in the WKCD EIA report) for landscape and visual impact during the construction phase.
Table 2.7: Monitoring Program for Landscape and Visual Impact during Construction Phase
|
Stage |
Monitoring Task |
Frequency |
Report |
Approval |
|
Construction |
Monitor implementation of proposed mitigation measures during the construction stage. |
Bi-weekly |
ET to report on Contractor’s compliance |
Counter-signed by IEC |
During the landscape and visual impact monitoring, any changes in relation to the landscape and visual amenity should be monitored with reference to the baseline conditions of the site. In addition, mitigation measures were proposed in the WKCD EIA report to minimise the landscape and visual impacts during the construction phase. The proposed mitigation measures as shown in Table 9.1 and Table 9.2 of the EM&A Manual should be checked for proper implementation.
3
Monitoring Results
3.1
Impact Monitoring
Construction impact monitoring for air quality, noise and landscape and visual impact was undertaken in compliance with the EM&A Manual during the reporting month.
3.2
Air Quality
Monitoring
3.2.1
1-hour TSP
Results of 1-hour TSP at the monitoring location AM1 and AM2A are summarised in Table 3.1. Graphical plots of the monitoring results are shown in Appendix G.
Table 3.1: Summary of 1-hour TSP monitoring results
|
|
|
|
1-hour TSP (μg/m3) |
|
|
|
|||
|
Monitoring Station |
Monitoring Date |
Start Time |
1st Result |
2nd Result |
3rd Result |
Range (μg/m3) |
Action Level (μg/m3) |
Limit Level (μg/m3) |
|
|
AM1 |
04-May-17 |
10:42 |
62 |
48 |
57 |
48-186 |
273.7 |
500 |
|
|
10-May-17 |
10:50 |
167 |
175 |
186 |
|||||
|
16-May-17 |
10:37 |
62 |
58 |
55 |
|||||
|
22-May-17 |
11:00 |
75 |
83 |
91 |
|||||
|
26-May-17 |
8:02 |
48 |
60 |
62 |
|||||
|
AM2A |
04-May-17 |
10:55 |
59 |
65 |
70 |
55-193
|
274.2 |
500 |
|
|
10-May-17 |
11:02 |
170 |
181 |
193 |
|||||
|
16-May-17 |
10:50 |
69 |
72 |
75 |
|||||
|
22-May-17 |
11:12 |
77 |
85 |
93 |
|||||
|
26-May-17 |
8:14 |
55 |
71 |
63 |
|||||
3.2.2
24-hour TSP
Results of 24-hour TSP at the monitoring location AM1 and AM2A are summarised in Table 3.2. Graphical plots of the monitoring results are shown in Appendix G.
Table 3.2: Summary of 24-hour TSP monitoring results
|
Monitoring Station |
Monitoring Date |
Start Time |
Monitoring Results (μg/m3) |
Range (μg/m3) |
Action Level (μg/m3) |
Limit Level (μg/m3) |
|
AM1
|
04-May-17 |
10:40 |
44 |
41-57 |
143.6 |
260 |
|
10-May-17 |
10:48 |
57 |
||||
|
16-May-17 |
10:35 |
46 |
||||
|
22-May-17 |
10:48 |
41 |
||||
|
26-May-17 |
08:00 |
48 |
||||
|
AM2A |
04-May-17 |
10:52 |
43 |
43-85 |
151.1 |
260 |
|
10-May-17 |
11:00 |
85 |
||||
|
16-May-17 |
10:47 |
47 |
||||
|
22-May-17 |
11:10 |
45 |
||||
|
26-May-17 |
08:12 |
60 |
No exceedance of 1-hour and 24-hour TSP (Action or Limit Level) was recorded in the reporting period.
3.3
Noise Monitoring
The construction noise monitoring results at the monitoring location NM1A are summarized in Table 3.3. Graphical plots of the monitoring data and the station set-up of a free-field measurement are shown in Appendix G.
Table 3.3: Summary of noise monitoring results during normal weekdays
|
Monitoring Date |
Start Time |
End Time |
Leq (30 mins), dB(A) |
Limit Level for Leq (dB(A)) |
|
04-May-17 |
14:00 |
14:30 |
69 |
75 |
|
10-May-17 |
14:00 |
14:30 |
68 |
|
|
16-May-17 |
14:00 |
14:30 |
69 |
|
|
22-May-17 |
14:00 |
14:30 |
68 |
|
Remarks: +3dB (A) correction was applied to free-field measurement. |
No exceedance (Action/Limit Level) of construction noise was recorded in the reporting period as no noise related environmental complaint was received during the reporting period and noise levels recorded during the monitoring period were below 75 dB(A).
Construction works were extended to holidays on 7, 14 and 21 May 2017. In accordance with the EM&A Manual, additional monitoring was carried out during the restricted hours on 7, 14 and 21 May 2017. The Leq (5 mins) is in the range of 68-69 dB(A). Major noise source includes traffic. Construction Noise Permits for the works carried out during restricted hours were obtained and listed in Table 4.3.
3.4
Landscape and
Visual Impact
Landscape and visual impact inspections were conducted as part of the weekly site inspections on 11 and 25 May 2017 for M+ Museum and 10 and 24 May 2017 for Lyric Theatre Complex during the reporting month. As reviewed by the registered Landscape Architect, no adverse comment on landscape and visual aspects was made during these inspections.
The landscape and visual mitigation measures were implemented during the reporting period. The summary of implementation status of the environmental mitigation measures are provided in Appendix J.
4
Environmental Site Inspection
4.1
Site Inspection
4.1.1
M+ Museum
Construction phase weekly site inspections were carried out on 4, 11, 18 and 25 May 2017. The joint site inspection with IEC, ET, ER and Contractor was held on 18 May 2017. All observations have been recorded in the site inspection checklist and passed to the Contractor together with the appropriate recommended mitigation measures where necessary. The key observations from the site inspections and associated recommendations are summarized in Table 4.1.
Table 4.1: Summary of Site Inspections and Recommendations for M+ Museum
|
Inspection Date |
Parameter |
Observation / Recommendation |
Contactor’s Responses / Action(s) Undertaken |
Close-out (Date) |
|
27 Apr 2017 |
Waste management |
Construction waste was found accumulated at B2. The contractor was reminded to remove the construction waste regularly. |
The contractor has removed the construction waste previously found at B2. |
4 May 2017 |
|
4 May 2017 |
Air quality |
Open stockpile was found near wetsep no. 5. The contractor was reminded to cover it with impervious sheet if the stockpile is inactive. |
The stockpile previously observed near wetsep no.5 is still active and construction activities are in progress. |
11 May 2017 |
|
4 May 2017 |
Waste management |
Oil stain was found on the haul road. The contractor was reminded to remove the oil stain and treat it as chemical waste. |
The contractor has removed the oil stain previously found on the haul road. |
11 May 2017 |
|
4 May 2017 |
Water quality |
Effluent quality at ICP sampling point was checked. They were all visually clear when comparing to standard solution and within proper pH range. |
N/A |
N/A |
|
11 May 2017 |
Air quality |
Cement bags were found uncovered in B2. The contractor was reminded to cover the cement bags with impervious sheeting to reduce dust impact. |
The contractor has covered the cement bags with impervious sheet. |
18 May 2017 |
|
11 May 2017 |
Waste management |
Chemicals were observed without drip tray in B2. The contractor was reminded to provide drip tray for the chemicals. |
The contractor has removed the chemicals previously observed without drip tray. |
18 May 2017 |
|
11 May 2017 |
Water quality |
Effluent quality at ICP sampling point was checked. They were all visually clear when comparing to standard solution and within proper pH range. |
N/A |
N/A |
|
18 May 2017 |
Air quality |
Stockpile was observed without cover near wetsep no. 5 and seafront. The contractor was reminded to cover it with impervious sheeting or provide regular water spraying to reduce dust impact. |
The contractor has removed the stockpile near wetsep no. 5 and seafront. |
25 May 2017 |
|
18 May 2017 |
Waste management |
Oil mixture was observed in the drip tray. The contractor was reminded to remove it and treat it as chemical waste. |
The contractor has removed the oil mixture in the drip tray. |
25 May 2017 |
|
18 May 2017 |
Waste management |
General refuse was observed on the ground. The contractor was reminded to remove the general refuse. |
The contractor has removed the general refuse previously observed on the ground. |
25 May 2017 |
|
18 May 2017 |
Water quality |
Effluent quality at ICP sampling point was checked. They were all visually clear when comparing to standard solution and within proper pH range. |
N/A |
N/A |
|
25 May 2017 |
Air quality |
Haul road was observed dry and dusty. The contractor was reminded to enhance water spraying to reduce dust impact. |
Follow-up status will be provided in the next reporting month |
On-going |
|
25 May 2017 |
Air quality |
Cement bags were found without any cover at B2. The contractor was reminded to cover the cement bags with impervious sheeting. |
Follow-up status will be provided in the next reporting month |
On-going |
|
25 May 2017 |
Waste management |
Construction waste/ general refuse was observed accumulated at B2. The contractor was reminded to remove the construction waste/ refuse. |
Follow-up status will be provided in the next reporting month |
On-going |
|
25 May 2017 |
Water quality |
Effluent quality at ICP sampling point and M+ wetsep was checked. They were all visually clear when comparing to standard solution and within proper pH range. |
N/A |
N/A |
4.1.2
Lyric Theatre
Complex
Construction phase weekly site inspections were carried out on 2, 10, 17, 24 and 31 May 2017 . The joint site inspection with IEC, ET, ER and Contractor was held on 24 April 2017. All observations have been recorded in the site inspection checklist and passed to the Contractor together with the appropriate recommended mitigation measures where necessary. The key observations from the site inspections and associated recommendations are summarized in Table 4.2.
EPD site inspection was conducted on 19 and 26 May 2017. On 19 May 2017, general inspection was conducted and photos was taken at sea-front area and wastewater treatment facilities. On 26 May 2017, follow up inspection was conducted regarding muddy water observed at outfall of MTR 810 site on 24 May 2017. EPD inspectors applied colour dye to trace water flow from the discharge point gully to storm drain manhole at Austin Road West. They also conducted general inspection and took photos at sea-front area and wastewater treatment facilities. No adverse comments were received during both inspections.
Table 4.2: Summary of Site Inspections and Recommendations for Lyric Theatre Complex
|
Inspection Date |
Parameter |
Observation / Recommendation |
Contactor’s Responses / Action(s) Undertaken |
Close-out (Date) |
|
17 May 2017 |
Water quality |
Suspended solid and missing of net at outlet were observed at wetsep no.1. The contractor was reminded to clear the suspended solid and install the net in order to keep the quality of discharge water. |
Wetsep No.1 was desludged and a net was installed at the outlet. |
20 May 2017 |
|
17 May 2017 |
Air quality |
Stockpile was observed at the work area. The contractor was reminded to cover or remove the stockpile. |
The stockpile was covered with tarpaulin sheet. |
20 May 2017 |
|
24 May 2017 |
Water quality |
The contractor was reminded to direct site runoff through wetsep units before discharge from the site, and to enhance mitigation measures to prevent spillage of site runoff at sea front (where necessary). |
All site runoff was properly discharged through wetsep. |
29 May 2017 |
|
24 May 2017 |
Waste management |
Some chemical containers were not place in a suitably bunded area. The contractor was advised to provide suitable bunded area for storage. Also, the contractor should check the large container containing other chemical containers to ensure no leakage. |
Chemicals were replaced into proper container for storage and the container was plugged already. |
29 May 2017 |
|
31 May 2017 |
Air quality |
Dry ground was observed at Area L04. The contractor was reminded to increase water spraying frequency to reduce dust impact. |
Follow-up status will be provided in the next reporting month |
On-going |
|
31 May 2017 |
Water quality |
Suspended solid was observed at wetsep No.2. The contractor was reminded to clear the suspended solid in order to keep the quality of discharge water. |
Follow-up status will be provided in the next reporting month |
On-going |
4.2
Advice on the
Solid and Liquid Waste Management Status
The Contractors have been registered as a chemical waste producer for the Project. Construction and demolition (C&D) material sorting will be carried out on site. A sufficient number of receptacles were available for general refuse collection.
4.2.1
M+ Museum
As advised by the Contractor, 134 tonnes, 86.42 tonnes and 231.57 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, while 139.0 tonnes of general refuse was disposed of at SENT landfill. 71.1 tonnes of metals, 0 tonnes of paper/cardboard packaging, 0 tonne of plastic and 280.0 tonnes of timber were collected by recycling contractors in the reporting month. 0 tonne of inert C&D materials was reused on site. 528.0 tonnes of inert C&D materials were reused in other projects and 173.7 tonnes of inert C&D materials were disposed to sorting facility. 0 tonne of chemical waste was collected by licensed contractors in the reporting period.
The actual amounts of different types of waste generated by the activities of construction works at M+ Museum in the reporting month are shown in Appendix I.
4.2.2
Lyric Theatre
Complex
As advised by the Contractor, 877.16 tonnes and 1,603.16 tonnes of inert C&D material were disposed of as public fill to Tuen Mun Area 38 and Tseung Kwan O Area 137 respectively, while 10.0 tonnes of general refuse was disposed of at SENT landfill. 20.9 tonnes of metals, 0.1 tonne of paper/cardboard packaging, 0 tonne of plastic and 0 tonne of timber were collected by recycling contractors in the reporting month. 0 tonne of inert C&D materials was reused on site. 99.0 tonne of inert C&D materials was reused in other projects. 0.5 tonnes of chemical waste was collected by licensed contractors in the reporting period.
The actual amounts of different types of waste generated by the activities of construction works at Lyric Theatre Complex in the reporting month are shown in Appendix I.
4.3
Status of
Environmental Licenses and Permits
The environmental permits, licenses, and/or notifications on environmental protection for this Project which were valid during the period are summarised in Table 4.3 and Table 4.4.
4.3.1
M+ Museum
Table 4.3: Status of Environmental Submissions, Licenses and Permits for M+ Museum
|
Valid Period |
|
|
||
|
Permit / License No. / Notification / Reference No. |
From |
To |
Status |
Remarks |
|
Chemical Waste Producer Registration |
||||
|
5213-217-H2913-45 |
05-Nov-15 |
-- |
Valid |
-- |
|
Billing Account Construction Waste Disposal |
||||
|
7023393 |
13-Oct-15 |
-- |
Account Active |
-- |
|
Construction Noise Permit |
||||
|
GW-RE1058-16 |
4-Nov-16 |
3-May-17 |
Cancelled on 4-May-17 |
-- |
|
GW-RE0348-17 |
4-May 17 |
3-Nov-17 |
Valid |
|
|
Wastewater Discharge License |
||||
|
WT00023633-2016 |
4-Mar-16 |
31-Mar-21 |
Valid |
-- |
|
Notification under Air Pollution Control (Construction Dust) Regulation |
||||
|
394083 |
7-Oct-15 |
-- |
Notified |
-- |
4.3.2
Lyric Theatre Complex
Table 4.4: Status of Environmental Submissions, Licenses and Permits for Lyric Theatre Complex
|
Valid Period |
|
|
||
|
Permit / License No. / Notification / Reference No. |
From |
To |
Status |
Remarks |
|
Chemical Waste Producer Registration |
||||
|
5213-217-G2347-39 |
17-Feb-16 |
-- |
Valid |
-- |
|
Billing Account Construction Waste Disposal |
||||
|
7024189 |
25-Jan-16 |
-- |
Account Active |
-- |
|
Construction Noise Permit |
||||
|
GW-RE0214-17 |
20-Mar-17 |
19-Sep-17 |
Valid |
|
|
Wastewater Discharge License |
||||
|
WT00023648-2016 |
9-Mar-16 |
31-Mar-21 |
Valid |
-- |
|
Notification under Air Pollution Control (Construction Dust) Regulation |
||||
|
398075 |
18-Jan-16 |
-- |
Notified |
-- |
4.4
Recommended Mitigation Measures
The EM&A programme followed the recommended mitigation measures in the EM&A Manual. The EM&A requirements as well as the summary of implementation status of the environmental mitigation measures are provided in Appendix J. In particular, the following mitigation measures were brought to attention during the site inspections:
4.4.1
M+ Museum
Chemical and Waste Management
– All chemical drum/ containers stored on site should be provided with drip trays.
– Any oil stain found on the ground should be removed and treat it as chemical waste.
– Construction waste generated on site should be regularly removed.
– Drip trays should be regularly cleaned up to avoid accumulation of chemical waste.
Air Quality
– Enhance water spraying for haul roads to reduce dust impact.
– Maintain high standard of housekeeping to prevent emission of fugitive dust.
– Impervious sheet or regular water spraying should be provided to inactive stockpile and cement bags to reduce dust impact.
4.4.2
Lyric Theatre Complex
Chemical and Waste Management
– All chemical drum/ containers stored on site should be provided with drip trays.
– Chemical storage containers should be plugged and regularly checked to ensure no leakage of chemicals.
Air Quality
– Enhance water spraying for haul roads to reduce dust impact.
– Stockpile should be regularly removed or covered by impervious sheeting.
Water Quality
– Wetsep units should be regularly checked and maintained to ensure proper function to treat wastewater or runoff before discharge.
– All site runoff should be directed to wastewater treatment facilities for treatment before discharging off site.
– Mitigation measures should be implemented to prevent overflow of site runoff into the sea.
5 Compliance
with Environmental Permit
The status of the required submission under the EP during the reporting period is summarized in Table 5.1.
Table 5.1: Status of Submissions under the Environmental Permit
|
EP Condition |
Submission |
Submission Date |
|
Condition 3.4 |
Monthly EM&A Report for April 2017 |
12 May 2017 |
6
Report in Non-compliance, Complaints, Notification of Summons and
Successful Prosecutions
6.1
Record on Non-compliance of Action and Limit Levels
There was no breach of Action or Limit Levels for Air Quality and Noise monitoring in the reporting month.
6.2
Record on Environmental Complaints Received
One environmental complaint regarding site overflow with muddy water discharged into the sea at Lyric Theatre Complex was recorded on 24 May 2017. Investigation has been conducted which revealed that no construction works were carried out on that day, except for pumping site runoff from the drainage collection trench located along the concerned seafront area due to rainfall, to wastewater treatment facilities for treatment before discharging offsite. The contractor has had temporary drainage arrangement in place near the seafront since April 2017 and previous adverse weather has demonstrated the effectiveness of the temporary drainage arrangement where no overflow of site runoff was observed.
With the heavy rainfall on 24 May 2017, the contractor was required to handle the site runoff within the site together with the unexpected runoff from the adjacent area that also fell into their catchment area. The contractor had been continuously pumping out site runoff to wastewater treatment facilities for treatment before discharging offsite as much as possible. Emergency and immediate actions were carried out including setting up of intermediate bunds to minimise site runoff to the seafront; providing excavated trench in the middle of the site for extra storage; redirecting site runoff from adjacent sites by using bunds and sandbags; and pumping site runoff to other less environmental sensitive works area for temporary storage and further treatment before discharging offsite. The incident of muddy water discharged to the sea was due to the extreme rainfall. In the afternoon of 24 May 2017, no muddy water was observed near the seafront though it was still raining.
Nonetheless, the contractor implemented follow-up actions including revising the temporary drainage design using a more conservative approach to accommodate for the possibility of increased runoff; constructing bunds where there is interface with adjacent projects; excavating storage pits and construction of berm in the middle of the site for runoff retention as an interim buffer; pumping water to other site areas for temporary retention; regular checking of pumps and drainage to ensure proper functioning of the system when rainstorm warning signals are hoisted; and preparing standby pumps and sandbags on site for emergency.
The cumulative statistics on complaints were provided in Appendix K.
6.3
Record on Notifications of Summons and Successful
Prosecution
No notifications of summons or successful prosecution were received this month. The cumulative statistics on notifications of summons and successful prosecutions were provided in Appendix K.
7
Future Key Issues
7.1
Construction
Works for the Coming Month(s)
7.1.1
M+ Museum
The major site works scheduled to be commissioned in the coming month include:
● Construction of 3/F, 2/F, 1M/F, 1/F, G/F, LG/F, B1 slab;
● Construction of column from B1 to LGF, LGF to GF, G/F to 1/F, 1/F to 1M/F, 1M/F to 2/F, 2/F to 3/F;
● Installation of mega truss
● ABWF work at DCS;
● E&M work at B2/F and SPS;
● Construction of B1 slab and beam and Roof Beam and slab at ICP
● Sheet Pile Installation for seawater outfall pipe between Ch0+66 to Ch0+108
● Storm Drainage at Portion M45
● Sewerage work at Portion L08
7.1.2
Lyric Theatre
Complex
The major site works scheduled to be commissioned in the coming month include:
● Installation of Monitoring Instrumentation
● Pipe Pile Construction
● Pumping Test
● Pile Loading Test
7.2
Key Issues for
the Coming Month
7.2.1
M+ Museum
Key issues to be considered in the coming month include:
● Generation of dust from construction works;
● Noise impact from operating equipment and machinery on-site;
● Generation of site surface runoffs and wastewater from activities on-site;
● Management of stockpiles and slopes, particularly on rainy days;
● Sorting, recycling, storage and disposal of general refuse and construction waste; and
● Management of chemicals and avoidance of oil spillage on-site.
7.2.2
Lyric Theatre
Complex
Key issues to be considered in the coming month include:
● Generation of dust from construction works;
● Noise impact from operating equipment and machinery on-site;
● Generation of site surface runoffs and wastewater from activities on-site;
● Management of stockpiles and slopes, particularly on rainy days;
● Sorting, recycling, storage and disposal of general refuse and construction waste; and
● Management of chemicals and avoidance of oil spillage on-site.
7.3
Monitoring Schedule for the Coming Month
The environmental site inspection and environmental monitoring will be continued in the coming month. Impact monitoring for air quality and noise in accordance with the approved EM&A Manual has commenced since 31 October 2015 and 5 March 2016 respectively. The tentative monitoring schedule for the coming month is shown in the Appendix E.
8
Conclusions and Recommendations
8.1
Conclusions
The EM&A programme as recommended in the EM&A Manual has been undertaken since the construction of M+ Museum main works commenced on 31 October 2015, and the construction of Lyric Theatre Complex foundation works commenced on 1 March 2016.
Monitoring of air quality and noise with respect to the Projects is underway. In particular, the 1-hour TSP, 24-hour TSP, noise level (as Leq, 30 minutes) 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 and noise in the reporting month.
One environmental complaint regarding site overflow with muddy water discharged into the sea at Lyric Theatre Complex was recorded in the reporting month. No notifications of summons or successful prosecution were received during the reporting month.
Weekly construction phase site inspections and bi-weekly landscape and visual impact inspections were conducted during the reporting month as required. It was observed that the Contractors had implemented all possible and feasible mitigation measures to mitigate the potential environmental impacts during construction phase works.
8.2
Recommendations
Potential environmental impacts due to the construction activities, including air quality, noise, water quality, waste, landscape and visual, will be monitored or reviewed. The recommended environmental mitigation measures shall be implemented on site and regular inspections as required will be carried out to ensure that the environmental conditions are acceptable.