Baseline Environmental Monitoring Report

 

August 2014

 

Client          :       Maxewell Geosystems Ltd.

 

Project           :      West Kowloon Cultural District

 

Report No. :       0125/14/ED/0056G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                           

 

 

 

 

 

 

 

 

 

 

 

 


Contents

 

EXECUTIVE SUMMARY

1.     INTRODUCTION  Error! Bookmark not defined.

2.     PROJECT BACKGROUND INFORMATION  Error! Bookmark not defined.

3.     BASELINE ENVIRONMENTAL MONITORING (AIR QUALITY IMPACT) Error! Bookmark not defined.

4.     BASELINE ENVIRONMENTAL MONITORING (NOISE IMPACT) Error! Bookmark not defined.

5.     BASELINE LANDSCAPE AND VISUAL MONITORING   Error! Bookmark not defined.

6.     REVISIONS FOR INCLUSION IN THE EM&A MANUAL  Error! Bookmark not defined.

7.     COMMENTS AND CONCLUSIONS  Error! Bookmark not defined.

 

List of Tables

Table A        Summary of the Weather and Influencing Factors for Baseline Monitoring Works

Table B        Summary of Baseline 1-hour TSP Monitoring Results

Table C        Summary of Baseline 24-hour Monitoring Results

Table D      Summary of Daytime Noise Monitoring Results

Table 3-1       Air quality monitoring equipment

Table 3-2       Monitoring parameters, duration, frequency of air quality monitoring

Table 3-3       Monitoring Locations

Table 3-4       Monitoring Schedule for Air Monitoring

Table 3-5       Summary of the Weather and Influencing Factors for Baseline Monitoring Works

Table 3-6       Summary of Baseline 1-hour TSP Monitoring Results

Table 3-7       Summary of Baseline 24-hour TSP Monitoring Results

Table 3-8       Guidelines for Establishing Action and Limit Levels for Air Quality

Table 3-9        Action and Limit Levels for 1-hour TSP

Table 3-10     Action and Limit Levels for 24-hour TSP

Table 3-11     Typical Event and Action Plan for Air Quality  10

Table 4-1       Noise Monitoring Equipment

Table 4-2       Location of Noise Monitoring Station

Table 4-3       Type of Measurement

Table 4-4       Monitoring Parameters and Frequencies of Noise Monitoring

Table 4-5       Monitoring Schedule

Table 4-6       Summary of the Weather and Influencing Factors for Baseline Monitoring Works

Table 4-7       Change in road traffic of Lin Cheung Road and Austin Road West from 2010 to 2013

Table 4-8       Summary of Daytime Noise Monitoring Results

Table 4-9       Action and Limit Levels for Noise

Table 4-10     Typical Event and Action Plan for Construction Noise

Table 5-1       List of Landscape Resources (LRs)

Table 5‑2       List of Landscape Character Areas (LCAs) 21

Table 5‑3       List of Key Visually Sensitive Receivers (VSRs) – WKCD  22

Table 5-4       List of Key Visually Sensitive Receivers (VSRs) – Underpass

Table 5‑5       List of Key Visual Sensitive Receivers (VSRs) – Flyover 24

Table 5‑6       Updated No. of Trees of LRs  25

Table 5‑7       LRs with Changed Status  26

Table 5‑8       Correction of Information on LRs  26

Table 5‑9       Baseline Condition of LCAs  27

Table 5‑10     Baseline Condition of VSRs – WKCD  27

Table 5‑11     Baseline Condition of VSRs (Underpass) 28

Table 5‑12     Baseline Condition of VSRs (Flyover) 29

Table 5‑13     Event and Action Plan for Landscape and Visual Impact - Construction Phase  30

 

List of Figure

Figure 1           Project Layout


List of Appendix

Appendix A       Calibration Certificates for Baseline Environmental Monitoring Equipment

Appendix B       Baseline Environmental Monitoring Results

Appendix C       Graphical Plots of Baseline Environmental Monitoring Data

Appendix D       Locations of the Baseline Monitoring Stations

Appendix E       Baseline Study of Landscape and Visual Impact

Appendix F        Construction Programme with milestones of environmental protection / mitigation activities annotated

Appendix G       Supplementary Information for Choosing Environmental Monitoring Stations

Appendix H       Supporting document for referencing Baseline Monitoring Report of Guangdong-Shenzhen-Hong Kong Express Rail Link

 

 

 


EXECUTIVE SUMMARY

 

Maxewell Geosystems Ltd. has appointed MateriaLab Consultants Limited (MCL) to undertake the Baseline Environmental Monitoring for the Project of West Kowloon Cultural District from 22 July 2014 to 15 August 2014.

 

Supplementary baseline noise monitoring was conducted at The Victoria Towers – Tower 1 during 22 January 2015 and 25 January 2015 to eliminate interference from outlier data recorded between 22 July 2014 and 15 August 2014. 

 

Baseline water quality monitoring has not been carried out because there is no marine construction works to be carried out in WKCD.   If any marine construction works including modification of seawall and construction of landing steps and possible piers are to be carried out in the future, baseline water quality monitoring shall be conducted according to the methodologies set out in the EM&A manual.

 

The baseline environmental monitoring works for the parameters of 1-hour and 24-hour Total Suspended Particulates (TSP), and noise conducted at each monitoring stations are as follows:

 

Air Quality Monitoring

Designated Monitoring Stations in EM&A Manual

Monitoring Stations in accordance with EM&A Manual

Alternative Monitoring Stations

Baseline Monitoring Period

AM1 - International Commerce Centre

Yes

N/A

22 July 2014 to

06 Aug 2014

AM2 - The Harbourside Tower 1

Yes

N/A

29 July 2014 to

15 Aug 2014

AM3 - The Victoria Towers - Tower 1

Yes

N/A

22 July 2014 to

04 Aug 2014

AM4 - Canton Road Government Primary School

Yes

N/A

22 July 2014 to

05 Aug 2014

 

Noise Monitoring

Designated Monitoring Stations in EM&A Manual

Monitoring Stations in accordance with EM&A Manual

Alternative Monitoring Stations

Baseline Monitoring Period

NM3 - The Victoria Towers - Tower 1

Yes

N/A

22 July 2014 to

14 Aug 2014, 22 & 25 Jan 2015

NM4 - Canton Road Government Primary School

Yes

N/A

22 July 2014 to

04 Aug 2014

 

The following monitoring activity is suspended:

 

1.      Due to the electricity shortage, monitoring of TSP at AM2 were suspended on 2/8 (24-hr), 3/8 (1-hr and 24-hr) and 13/8-14/8 (24-hr), and rescheduled to 11/8, 12/8 and 15/8 (24-hr) respectively.

2.      Due to electricity shortage, monitoring of 24-hour TSP at AM4 were suspended on 3/8, and rescheduled to 5/8.

3.      Due to objection from property owners, noise monitoring at NM1 - The Harbourside Tower 1 and NM2 - The Arch – Sun Tower could not be carried out in the baseline monitoring period.

4.      Due to site conditions (objection from property owner), the noise monitoring at NM3 was suspended on 30/7, 31/7, 1/8-6/8 and 12/8-13/8, and rescheduled to 7/8-11/8 and 14/8.

5.      Due to interference by outlier data recorded on 10/8-11/8, noise monitoring data at NM3 on these two days were disregarded. Data was substituted by supplementary noise monitoring data on 22/1/2015 & 25/1/2015.

 

Baseline Monitoring Observations

 

According to on-site observation, the influencing factor in the vicinity of the monitoring stations was recorded. A summary of the weather and influencing factors for baseline monitoring works is given below:

 

Table A    Summary of the Weather and Influencing Factors for Baseline Monitoring Works

Monitoring Stations

Date

Influencing Factors And Major Activities

AM1

July 2014

Aug 2014

 

22

23

24

25

26

27

28

29

30

31

01

02

03

04

05

06

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM2

July 2014

Aug 2014

Road traffic dust and MTR site activities

29

30

31

01

02

04

05

06

07

08

09

10

11

12

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM3

July 2014

Aug 2014

 

22

23

24

25

26

27

28

29

30

31

01

02

03

04

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AM4

July 2014

Aug 2014

 

22

23

24

25

26

27

28

29

30

31

01

02

03

04

05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Monitoring

Stations

Date

Influencing Factors

And Major Activities

NM3

July 2014

Aug 2014

Jan 2015

Road traffic noise

22

23

24

25

26

27

28

29

07

08

09

14

22

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NM4

July 2014

Aug 2014

Road traffic noise

22

23

24

25

26

27

28

29

30

31

01

02

03

04

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remarks

Sunny

 

Cloudy

 

Rainy

 

Sunday

 

 

 

Air Quality

 

Data collected was reviewed and analyzed to determine the Action and Limit Levels for air quality during impact monitoring throughout the construction of the Project. Details of the methodology, locations and results are presented in this report. Results summary of 1-hr TSP and 24-hr TSP are given in Table B and C respectively.

 

Table B      Summary of Baseline 1-hour TSP Monitoring Results

Monitoring Station

Average TSP Concentration, ΅g/m³

(Range)

AM1

36.4 (5.7 – 84.9)

AM2

37.2 (5.6 – 122.2)

AM3

46.7 (5.9 – 160.7)

AM4

43.9 (5.3 – 148.4)

 

Table C      Summary of Baseline 24-hour TSP Monitoring Results

Monitoring Station

Average TSP Concentration, ΅g/m³

(Range)

AM1

20.9 (8.6 – 44.4)

AM2

32.5 (10.9 – 59.0)

AM3

34.4 (11.0 – 70.8)

AM4

34.7 (6.1 – 60.5)

 

Noise

 

Noise levels at the designated monitoring station were measured continuously for 12 hours (0700 to 1900) for a period of 14 consecutive days. Monitoring data collected was reviewed and analyzed.  Details of the locations and results are presented in this report. Results summary is given in Table D. The baseline noise monitoring data was processed according to the following periods:

 

n            Daytime: 0700-1900 hrs on normal weekdays

n            Holiday-time: 0700-1900 hrs on holidays

 

Originally, baseline noise monitoring was proposed to be conducted at the noise monitoring stations as specified in the EM&A Manual, including NM1 – The Harbourside Tower 1, NM2 – The Arch – Sun Tower, NM3 – Victoria Towers and NM4 – Canton Road Government Primary School. However, because of the rejection of both property management offices at The Arch and The Harbourside, baseline noise monitoring could not be carried out for NM1 and NM2 to obtain representative noise level.

 

After all the alternative approaches (refer to Section 4.5) in obtaining the baseline noise monitoring data near NM1 and NM2 had been explored and exhausted due to site constraints and refusals from property owners, measured baseline noise level of the project  “Hong Kong Section of Guangzhou-Shenzhen-Hong Kong Express Link (XRL) has been made as a reference and adopted in this report due to the fact that the site location of West Kowloon Terminus of XRL and its associated works along Austin Road West is the immediate neighbour of the WKCD. 

 

The baseline noise monitoring of XRL project was conducted from December 2009 to January 2010 when there was no major construction activities of XRL project.  In addition, after checking the traffic flow of Austin Road West and Lin Cheung Road that dominate the baseline noise level, traffic data has not been changed significantly from 2009 to 2013.  As such, the baseline noise data of XRL project is considered a suitable reference to be adopted in this monitoring report.

 

Reference was made to the baseline noise data measured at Star Tower of The Arch (CN33), which is nearest monitoring location to WKCD. Results summary is given in Table D.

 

Table D     Summary of Daytime Noise Monitoring Results

Daytime 0700-1900 hrs

on normal weekdays

Range of Noise Level, dB(A)

Leq (30min)

L10

L90

Mean

Max

Min

Mean

Max

Min

Mean

Max

Min

NM3

67.2

86.7

56.9

73.0

86.1

59.7

63.8

76.7

52.9

NM4

73.5

78.4

69.7

75.5

80.4

73.0

69.9

73.6

62.2

CN33*

65.4

67.3

62.5

66.8

69.5

64.0

63.3

64.9

60.0

   *Data referenced from XRL Baseline Monitoring Report