FEHD Sai Yee Street Environmental Hygiene Offices-cum-vehicle Depot, Yen Ming Road, West Kowloon Reclamation Area

Environmental Baseline Monitoring Report

 

Prepared by:

Telemax Environmental and Energy Management Limited

 

 

 

 

Prepared by:                                                15 FEB 2016         

           TELEMAX                                      Date

 

 

Certified by:                                                15 FEB 2016         

ENVIRONMENTAL TEAM LEADER                Date

 

 

Verified by:                                                 15 FEB 2016         

INDEPENDENT ENVIRONMENTAL CHECKER       Date


 

Issue

Date

Prepared by

Checked by

Approved by

Remark

1

1st Feb 2016

Rena Xu

(Assistant Consultant)

Jason Lau

(Senior Consultant)

Eagle Mo

(Managing Director)

--

2

15th Feb 2016

Rena Xu

(Assistant Consultant)

Jason Lau

(Senior Consultant)

Eagle Mo

(Managing Director)

Incorporated w/ AEC’s comment

 


 

LIST OF CONTENTS

1.0    Executive Summary. 1

2.0    Introduction. 2

3.0    Project Background Information. 3

4.0    Baseline Noise Monitoring. 4

5.0    Conclusion. 15

 

 


 

List of table

Table 4.1

Noise Monitoring Equipment

Table 4.2

Noise Monitoring Locations

Table 4.3

Type of Measurement

Table 4.4

Baseline Noise Monitoring Parameter and Frequency

Table 4.5

Monitoring Schedule

Table 4.6

Summary of the Weather and influencing Factor for Baseline Monitoring Work

Table 4.7

Summary of Noise Monitoring Results

Table 4.8

Action and Limit Levels of Noise

Table 4.9

Event and Action Plan for Construction Noise Monitoring

 

 

Appendix

Appendix A

Project Layout

Appendix B

Location of the Baseline Monitoring Stations

Appendix C

Calibration Certificates for Noise Monitoring Meter and Calibrator

Appendix D

Baseline Monitoring Data of Noise

Appendix E

Graphical Presentation of Leq (30 min)

Appendix F

Photo Records of Monitoring



1.0          Executive Summary

1.1            China Road and Bridge Corporation (CRBC) has appointed Telemax Environmental and Energy Management Limited (TEEM) to undertake the Baseline Environmental Monitoring for the Project of FEHD Sai Yee Street Environmental Hygiene Offices-cum-vehicle Depot, Yen Ming Road, West Kowloon Reclamation Area (FEHD) from 14 January 2016 to 27 January 2016.

1.2            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. Baseline noise monitoring were conducted at the noise monitoring stations as specified in the EM&A Manual, including NSR 1 Sir Ellis Kadorie Secondary School (West Kowloon), NSR 7 - Fu Cheong Estate Fu Yun House.

1.3            The baseline noise monitoring of FEHD project was conducted during January 2016 when there was no major construction activities of FEHD project. As such, the baseline noise data of FEHD project is considered a suitable reference to be adopted in this monitoring report.

 

 


2.0          Introduction

2.1              The Project Proponent is the Food and Environmental Hygiene Department (FEHD) that is responsible for the operation of the Project after completion of construction works. FEHD has appointed China Road and Bridge Corporation (CRBC) as the main contractor of the Project and Telemax Environmental and Energy Management Limited (TEEM) was commissioned by CRBC to undertake the Baseline Environmental Monitoring.

2.2              The purpose of the Report is to set out baseline levels for the noise in accordance with the EM&A Manual under EIA Report (AEIAR-177/2013) and Environmental Permit (EP-454-2013). These baseline levels for the noise will be used as the basis for compliance check during the impact monitoring in construction stage of the Project. This Report presents the locations, equipment, period, methodology, results and observations for the noise monitoring, landscape and visual monitoring during the baseline period.

2.3              Baseline noise level measurements were conducted from 14 January 2016 to 27 January 2016, in accordance with the EM&A Manual for the development at Yen Ming Road (the Project).

2.4              The structure of the Report is summarized as follows:

Section 1: Introduction, purpose and the structure of the report

Section 2: Project background information

Section 3: Noise, which describes the baseline noise monitoring

Section 4: Conclusions


3.0          Project Background Information

3.1            Provisioning of FEHD Sai Yee Street Environmental Hygiene Offices-cum-vehicle Depot at Yen Ming Road, West Kowloon Reclamation Area ("the Project"), is located at Yen Ming Road, West Kowloon Reclamation Area (the Site), with a total area of about 8,600 m2. The Site falls within an area zoned as “Government, Institution or Community” on the draft South West Kowloon Outline Zoning Plan (OZP) No. S/K20/27 and is designated as “Government” and “Cable / Drainage / WSD / MTRC Reserve” on the draft South West Kowloon (Central Section) Outline Development Plan (ODP) No. D/K20B/D.

3.2            EIA Report was approved on 12 November 2013 under the Environmental Impact Assessment Ordinance (EIAO) (Cap. 499). The Environmental Monitoring and Audit Manual (EM&A Manual) of the EIA Report requires a baseline noise monitoring to be implemented before the commencement of construction works.


4.0          Baseline Noise Monitoring

Monitoring Requirements

4.1            In accordance with the EM&A Manual, baseline monitoring shall be carried out daily for a period of at least 14 consecutive days at the designated monitoring stations. The noise levels shall be measured in terms of the A-weighted equivalent continuous sound pressure level (Leq)

Monitoring Methodology

4.2            In accordance with the EM&A Manual, baseline monitoring shall be carried out daily for a period of at least 14 consecutive days from 14 January 2016 to 27 January 2016 at the designated monitoring stations. The noise levels shall be measure the noise level in terms of LAeq (30mins) once a day between 07:00 and 19:00 for 14 consecutive days before construction commencement. L10 and L90 data will also be recorded, if necessary.

4.3            There should not be any construction activities in the vicinity of the monitoring stations during the baseline monitoring. Any non-project related construction activities in the vicinity of the monitoring stations during the baseline monitoring should be noted and the source and location of such activities should be recorded.

4.4            Field Monitoring shall be carried out as follow:

n   The monitoring station was set at a point 1m from the exterior of the sensitive receivers building façade and set at a position 1.2m above the ground.

n   The battery condition was checked to ensure good functioning of the meter.

n   Parameters such as frequency weighting, the time weighting and the measurement time will set as follows:

n   frequency weighting: A

n   time weighting: Fast

n   measurement time: Daily between 07:00 and 19:00 hrs


 

 

n   Prior to and after noise measurement, the meter shall be calibrated by using the Acoustic Calibrator with a sound level of 94 dB at 1000 Hz before and after each noise measurement. If the difference in the calibration level before and after measurement was more than 1.0 dB, the measurement would be considered in valid and repeat of noise measurement would be required after recalibration or repairing of the equipment.

n   The wind speed at the monitoring station shall be checked with the portable wind meter.

n   Noise monitoring should be cancelled in the presence of fog, rain, and wind with a steady speed exceeding 5 m/s, or wind with gusts exceeding 10 m/s.

n   Noise measurement should be paused during periods of high intrusive noise if possible and observation shall be recorded when intrusive noise is not avoided.

n   At the end of the monitoring period, the Leq, L10 and L90 shall be recorded. In addition, site conditions and noise sources should be recorded on a standard record sheet.


Types of Equipment Used and Calibration Details

Monitoring Equipment

4.5            As referred to the requirements of the Technical Memorandum (TM) issued under the Noise Control Ordinance (NCO), the sound level meters in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804:1985 (Type 1) specifications should be followed for conducting the noise monitoring.

4.6            Sound level calibrators were used for the on-site calibration of the meter. This calibrator complies with the IEC Publication 942 (1988) Class 1 and ANSI S1.40 - 1984. Noise measurements were only accepted to be valid if the calibration levels from before and after the measurement agree to within 1.0dB.

4.7            Measurements shall be recorded to the nearest 0.1dB. This noise monitors are programmed to measure A-weighted equivalent continuous sound pressure level at 30-minute intervals on normal weekdays and at 5-minute interval during other time periods. The noise measurement shall be conducted continuously throughout the measurement period between 07:00 and 19:00 hrs during daytime for 14 consecutive days.

4.8            Table 4.1 summarizes the noise monitoring equipment model being used for this project. Copies of the calibration certificates for the sound level meter and calibrator was attached in Appendix C. 

Table 4.1 Noise Monitoring Equipment

Item

Equipment

Model Number

Serial Number

1

Integrating Sound Level Meter

AWA5661

301134

2

Integrating Sound Level Meter

AWA5661

301135

3

Calibrator

Pulsar 101

028358

 


4.9            Maintenance and calibration procedures are as follows:

n   The microphone head of the sound level meter and calibrator should be cleaned with a soft cloth at quarterly intervals.

n   The sound level meter and calibrator should be calibrated annually.

4.10        Current calibration certificates with name of laboratory are attached in Appendix C.

Parameters Monitored

4.11        In accordance with the EM&A Manual, baseline noise for the A-weighted levels Leq, L10 and L90 was recorded. Data obtained from the baseline noise monitoring was processed and presented according to the following periods:

n   Daytime: 07:00-19:00 hrs on normal weekdays

n   Holiday-time: 07:00-19:00 hrs on holidays

Monitoring Locations

4.12        The sound level meter was mounted 1m from the exterior of the sensitive receivers building facade and be at a position 1.2m above the ground.  Façade measurement was conducted in two designated monitoring locations (NSR1 and NSR7).  Table 4.2 gives the location of the monitoring station during the baseline noise monitoring, and is also shown in Appendix B.

Table 4.2 Noise Monitoring Locations

NSR ID

Location

NSR Type

NSR1

Sir Ellis Kadorie Secondary School (West Kowloon)

Educational Premises

NSR7

Fu Cheong Estate Fu Yuen House

Residential Premises

 

 

 

 

Seeking Permission from Premises Owner for Setting Up Monitoring Station

4.13        Initially, baseline noise monitoring was proposed to be conducted at the noise monitoring stations as specified in the EM&A Manual, including NSR 1, Sir Ellis Kadorie Secondary School and NSR 7, Fu Cheong Estate Fu Yuen House.

4.14        In January 2016, Property Management Office of both Sir Ellis Kadorie Secondary School and The Fu Cheing Estate Fu Yuen House were approached to request for baseline noise monitoring to be carried out at their premises. Property owners allowed the set up of monitoring equipment within their premises.

4.15        Table 4.3 summarizes the types of measurement undertaken for each monitoring stations.

Table 4.3 Type of Measurement

Monitoring Station

Measurement Type

NSR 1 - Sir Ellis KadorieSecondary School

(West Kowloon)

Facade measurement

NSR 7 - Fu Cheong Estate Fu Yuen House

Facade measurement


Monitoring Date, Time, Frequency and Duration

4.16        Table 4.4 presents the noise monitoring parameters and frequencies.

Table 4.4 Monitoring Parameter and Frequencies of Noise Monitoring

Monitoring Stations

Parameter

Frequency and Period

NSR 1 & NSR 7

LAeq (30 min)

(L10 and L90 were also recorded as supplementary information)

Continuously throughout the measurement period for 14 consecutive days

Measurement Period: Daytime: 0700-1900 hrs on normal weekdays

4.17        The environmental monitoring schedule is shown in Table 4.5.


Table 4.5 Monitoring Schedule

Baseline Monitoring Schedule (January 2016)

January 2016

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10

 

 

11

 

 

12

 

 

13

 

 

14

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

15

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

16

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

17

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

18

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

19

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

20

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

21

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

22

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

23

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

24

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

25

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

26

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

27

BN - NSR 1 & NSR 7

NSR 1: 0700 -1900

NSR 7: 0700 -1900

28

 

 

29

 

 

30

 

 

31

 

 

 

 

 

 

Remarks: BN –Noise Baseline Monitoring

NSR 1 –Sir Ellis Kadorie Secondary School (West Kowloon) 

NSR 7 - Fu Cheong Estate Fu Yuen House


Baseline Monitoring Observations

4.18        According to the 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 3.6 Summary of the Weather and influencing Factor for Baseline Monitoring Works

Monitoring Stations

Date

Influencing Factors And Major Activities

NSR 1

January 2016

Road traffic noise

14

15

16

17

18

19

20

21

22

23

24

25

26

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NSR 7

January 2016

Road traffic noise

14

15

16

17

18

19

20

21

22

23

24

25

26

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remarks

Sunny

 

Fine

 

Cloudy

 

Rainy

 

Sunday

 

 

Quality Assurance (QA) Quality Control (QC) Results and Detection Limits

4.19        The sound level meter and calibrator were calibrated annually. Current calibration certificates are attached in Appendix C.


 

Results

4.20        Baseline noise monitoring was conducted at the monitoring station in the period between 14 January 2016 and 27 January 2016 when there was no major construction activities of FEHD project, the baseline data of FEHD project is therefore considered a suitable reference to be adopted in this monitoring report. The weather during the baseline monitoring period was fine or cloudy. Occasional rain was observed but it was either out of the monitoring period or not at the monitoring locations. In order not to create extra disturbances to the normal operation of the residents at NSR 7, slight deviation in monitoring location (within 2m) was required. Similarly, monitoring location of NSR 1 was slightly changed when required. During evening time, the school was closed and thus the monitoring location was moved to the entrance.

4.21        As revealed from the monitoring results, baseline noise levels for daytime (0700-1900) during normal weekdays at the NSR1 and NSR7 range from 57.2-73.5 dB(A) and 55.9-76.1 dB(A) respectively. Mean Leq (30min) for NSR 1 and 7 are 64.2dB(A) and 64.1dB(A), respectively. They are substantially lower than the limit levels of 70dB(A) and 75dB(A). Very occasionally, when there were sports activities at school, noise level at NSR1 is relatively higher and there were several time slots with exceeding noise levels. Similarly, when there were construction activities of another nearby construction site, noise levels at NSR2 appeared slightly higher. In general, the slight exceedances do not contribute to significant variation of the overall baseline monitoring. Results of L10 and L90 were also obtained for references and it can be observed that there were no significantly abnormal fluctuations. The several slight exceedances of L10 results were mainly due to the abovementioned sports events and nearby construction activities.

4.22        The baseline noise monitoring data at NSR1 and NSR7 are in Appendix D. The graphical presentation of data measured at the two monitoring locations is shown in Appendix E.

 

 

 

Table 4.7 Summary of Noise Monitoring Results

Daytime

0700-1900

hrs

Range of Noise Level, dB(A)

Leq (30min)

L10

L90

Mean

Max

Min

Mean

Max

Min

Mean

Max

Min

NSR 1

64.2

73.5

57.2

70.1

81.3

60.3

62.1

69.7

55.6

NSR 7

64.1

76.1

55.9

69.5

81.7

58.0

61.9

68.8

55.6

 

 

Action and Limit Levels

4.23        The Action and Limit Levels are shown in the following table. The Event and Action Plan for Construction Noise is given in Table 4.8.

Table 4.8 Action and Limit Levels of Noise

Time Period

Action Level

NSR ID

Limit Level

0700-1900

When one complaint is received.

NSR 1

70dB(A) for school and 65dB during examination period.

NSR 7

75dB(A) for residential premises


Table 4.9 Event and Action Plan for Construction Noise Monitoring

Event

Action

ET

IEC

Architect’s Representative

Contractor

Action Level

1. Notify the IEC and Contractor.

2. Carry out investigation.

3. Report the results of investigation to the IEC and Contractor.

4. Discuss with the Contractor and

formulate remedial measures.

5. Increase monitoring frequency to check mitigation effectiveness.

1. Review the analysed results submitted by the ET.

2. Review the proposed remedial measures by the Contractor and advise the Architect’s Representative accordingly.

3. Supervise the implementation of remedial measures.

1. Confirm receipt of notification of failure in writing.

2. Notify the Contractor.

3. Require the Contractor to propose remedial measures for the analysed noise problem.

4. Ensure remedial measures are properly implemented.

1. Submit noise mitigation proposals to the IEC.

2. Implement noise mitigation proposals.

Limit Level

1. Notify the IEC, Architect’s

Representative, EPD and Contractor.

2. Identify sources.

3. Repeat measurements to confirm findings.

4. Increase monitoring frequency.

5. Carry out analysis of the Contractor’s working procedures to determine possible mitigation to be implemented.

6. Inform the IEC, Architect’s Representative and EPD the causes and action taken for the exceedances.

7. Assess the effectiveness of the Contractor’s remedial action and keep the IEC, EPD and Architect’s Representative informed of the results.

8. If exceedance stops, crease additional monitoring

1. Discuss amongst the Architect’s Representative, ET and

Contractor on the potential remedial action.

2. Review the Contractor’s remedial action whenever necessary to assure their effectiveness and advise the Architect’s Representative accordingly.

3. Supervise the implementation

of remedial measures.

1. Confirm receipt of notification of failure in writing.

2. Notify the Contractor.

3. Require the Contractor to propose remedial measures for the analysed noise problem.

4. Ensure remedial measures are properly implemented.

5. If exceedance continues, consider what portion of work is responsible and instruct the Contractor to stop that portion of works until the exceedance is abated.

1. Take immediate action to

avoid further exceedance.

2. Submit proposals for remedial action to the IEC within 3 working days

of notification.

3. Implement the agreed proposals.

4. Resubmit proposals if

problems still not under control.

5. Stop the relevant portion of works as determined by the Architect’s Representative until the exceedance is abated.


5.0          Conclusion

5.1            The baseline environmental monitoring for the Project was conducted from 14 January 2016 to 27 January 2016. The baseline monitoring results were used to determine the appropriate Action and Limit Levels with the Limit Levels set against statutory or otherwise agreed limit.

5.2            The baseline noise monitoring were carried out in accordance with the EM&A manual requirements, in respect of the methodology, equipment, locations and monitoring parameters.

5.3            Baseline noise monitoring was conducted at two designated monitoring stations (NSR1 and NSR7). As recaptured from Section 4.21, baseline noise levels of NSR1 and NSR7 are 64.2 dB(A) and 64.1 dB(A), respectively. These data shall be used as reference for future impact monitoring and corresponding limits setting. With no abnormal deviations observed from all Leq, L10 and L90 results, the baseline noise monitoring results for NSR1 and NSR7 are considered representative to the ambient condition of the respective sensitive receivers.

5.4            The major noise source at all monitoring stations during the baseline monitoring were the traffic and human activities. The baseline monitoring results are considered representative to the ambient noise level.

5.5            In conclusion, the Contractor is advised to be aware of any site practice that may give rise of significant pollution to the existing environment. Implementation of necessary remedial measures should be instigated to rectify the potential impact on sensitive receivers located in the vicinity of the construction area.


Appendix A    Project Layout


Appendix B    Location of the Baseline Monitoring Stations

 


Appendix C    Certificates for Noise Monitoring Meter and Calibrator

               


Appendix D    Baseline Monitoring Data of Noise


Appendix E    Graphical Presentation of Leq (30 min)


Appendix F    Photo Records of Monitoring

Photo Records for Baseline Noise Monitoring in Daytime

NSR 1 - Sir Ellis Kadorie Secondary School (West Kowloon)

NSR 7 - Fu Cheong Estate Fu Yuen House

 

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