Service CONTRACT NO: EDO/01/2017
 
ENVIRONMENTAL TEAM for
DEVELOPMENT OF
ANDERSON ROAD QUARRY SITE -
ROAD IMPROVEMENT WORKS

 

Under Environmental Permit no. EP-513/2016
 
Monthly Environmental Monitoring & Audit Report
 
January 2024


CLIENTS:

PREPARED BY:

 

Civil Engineering and Development

Department

 

 

 

Lam Environmental Services Limited

 

19/F Remex Centre,

42 Wong Chuk Hang Road,

Hong Kong

 

 

 

Telephone: (852) 2882-3939

Facsimile: (852) 2882-3331

E-mail: info@lamenviro.com

Website: http://www.lamenviro.com

 

 

 

 

 

Certified by:



 

 

 

 

 

Victor Wong

Environmental Team Leader

 

 

 

DATE:

 

 

February 2024

 

 


Table of contents

 

1      Introduction.. 6

1.1.......... Scope of the Report 6

1.2.......... Structure of the Report 6

2      Project Background.. 8

2.1.......... Background. 8

2.2.......... Scope of the Project and Site Description.. 8

2.3.......... Project Organization and Contact Personnel 8

2.4.......... Construction Activities. 9

3      Status of Regulatory Compliance.. 11

3.1.......... Status of Environmental Licensing and Permitting under the Project 11

3.2.......... Status of Submission under the EP-513/2016. 12

4     Monitoring Requirements. 13

4.1.......... Noise Monitoring. 13

4.2.......... Air Monitoring. 15

4.3.......... Water Quality Monitoring. 17

5.     Monitoring Results. 22

5.1.......... Noise Monitoring Results. 22

5.2.......... Air Monitoring Results. 22

5.3.......... Water Quality Monitoring Results. 22

5.4.......... Waste Management 22

6.     Compliance Audit.. 24

6.1.......... Noise Monitoring. 24

6.2.......... Air Quality Monitoring. 24

6.3.......... Water Quality Monitoring. 24

6.5.......... Review of the Reasons for and the Implications of Non-compliance. 24

6.6.......... Summary of follow-up action on non-compliance. 24

7.     Environmental Site Audit.. 25

8.    Complaints, Notification of Summons and Prosecution.. 26

9.     Conclusion.. 28


lIST OF TABLES

 

Table 2.1     Schedule 2 Designated Projects under this Project

Table 2.2       Contact Details of Key Personnel

Table 3.1       Summary of the current status on licences and/or permits on environmental protection pertinent to the Project

Table 3.2       Summary of submission status under EP-513/2016

Table 4.1       Noise Monitoring Station

Table 4.2       Noise Monitoring Equipment

Table 4.3       Action and Limit Level for Noise Monitoring

Table 4.4       Air Monitoring Station

Table 4.5       Air Quality Monitoring Equipment

Table 4.6       Action and Limit Level for Air Quality Monitoring

Table 4.7     Marine Water Quality Stations for Water Quality Monitoring

Table 4.8       Water Quality Monitoring Equipment

Table 4.9       Action and Limit Level for Water Quality Monitoring

Table 5.1       Summary of Quantities of Inert C&D Materials

Table 5.2       Summary of Quantities of C&D Wastes

Table 8.1       Cumulative Statistics on Complaints

Table 8.2       Cumulative Statistics on Successful Prosecutions

Table 9.1       Construction Activities and Recommended Mitigation Measures in Coming Reporting 2 Months

 

 

lIST OF FIGUREs

 

Figure 2.1     Project Layout

Figure 2.2     Project Organization Chart

Figure 4.1    Locations of Noise Monitoring Station (for Road Improvement Work 1 & 2)

Figure 4.2    Locations of Noise Monitoring Station (for Road Improvement Work 3)

Figure 4.3    Locations of Air Quality Monitoring Station (for Road Improvement Work 1 & 2)

Figure 4.4    Locations of Air Quality Monitoring Station (for Road Improvement Work 3)

Figure 4.5    Locations of Water Quality Monitoring Station (for Road Improvement Work 1 & 2)

Figure 4.6    Locations of Water Quality Monitoring Station (for Road Improvement Work 3)

 

 

lIST OF APPENDIces

 

Appendix 3.1    Environmental Mitigation Implementation Schedule

Appendix 4.1    Action and Limit Level

Appendix 4.2    Copies of Calibration Certificates

Appendix 4.3    Wind data extracted from HKO Automatic Weather Station

Appendix 5.1    Monitoring Schedule for Reporting Month

Appendix 5.2    Noise Monitoring Results and Graphical Presentations

Appendix 5.3    Air Quality Monitoring Results and Graphical Presentations

Appendix 5.4    Water Quality Monitoring Results and Graphical Presentations

Appendix 5.5    Monthly Summary Waste Flow Table

Appendix 6.1    Event and Action Plans

Appendix 6.2    Summary for Notification of Exceedance

Appendix 8.1    Complaint Log

Appendix 9.1    Construction Programme of Individual Contracts


EXECUTIVE SUMMARY

       i.        This is the Environmental Monitoring and Audit (EM&A) Monthly Report ¡V January 2024 of Development of Anderson Road Quarry Site ¡V Road Improvement Works under Environmental Permit no. EP-513/2016 (Hereafter as ¡§the Project¡¨). The construction works of the Project was commenced on 2 November 2018 and this is the 63rd EM&A report presenting the environmental monitoring findings and information recorded during the period of 1 to 31 January 2024. The cut-off date of reporting is the end of each reporting month.

      ii.        In the reporting month, the principal work activities conducted are as follow:

Works in Road Improvement Works 1 (RIW1)

¡P             Construct RC works & backfilling at RWC2 Type 2 are in-progress.

¡P             ELS works at RWC2 Type 3 and Type 5 are in-progress.

¡P             Drainage diversion at RWC2 Type 4 is in-progress.

¡P             Watermain diversion at RWC2 Type 4 is in-progress.

¡P             RC works at RWC2 Type 2 to Type 5 is in-progress.

¡P             Backfilling works at Type 6 to 8 is in-progress.

¡P             Backfilling works at FE1-PC1b is in-progress.

¡P             Trial pits excavation at CT5 are in-progress.

¡P             Drainage diversion works at CT6.

¡P             ABWF works, E&M works and lift installation works in LT1 area are in-progress.

¡P             ABWF works, E&M works and lift installation works in LT2 area are in-progress.

 

Works in Road Improvement Works 2 (RIW2)

¡P        Remaining Utilities, Drainage Works, and Road Works are in-progress at Portion B (U-turn Bay remaining area).

¡P        ELS works and RC works at SE2 Bay 13 to 21 are in-progress.

¡P        RC works at CT4 / SE2 in progress.

 

Works in Road Improvement Works 3 (RIW3)

¡P        Excavate trial pits at Sau Mui Ping Road / Lin Tak Road for watermain alignment confirmation in-progress.

¡P        ELS works and watermain connection works at Sau Mun Ping Road / Hiu Kwong Street Sitting-out Area for watermain connection is in-progress.

¡P        Backfilling works at RWD1 Bay 1 ¡V 10.

¡P        ELS works for Noise Barrier SE1, VB1 pending on watermain connection point issue.

¡P        RC Works for Noise Barrier SE1 is in-progress.

¡P        Rock excavation at Slope D1 lower portion is in-progress.

¡P        Rock excavation using drill & split method, drainage works and road works at Slope D3 / Lin Tak Road are in-progress.

¡P        Excavate at Slope D4 is in-progress.

¡P        ELS works at Bridge F1-4 is in-progress.

 

Air Quality Monitoring

iii.       1-hour Total Suspended Particulates (TSP) monitoring was conducted at eight monitoring stations. The sampling frequency is 3 times in every 6 days in the reporting month.

iv.       No project related action or limit level exceedance was recorded in this reporting period.

 

Noise Monitoring

v.       Noise monitoring was conducted at five noise monitoring stations once per week in the reporting month.

vi.       No project related action or limit level exceedance was recorded in this reporting period.

 

Water Quality Monitoring

vii.       Water quality monitoring was conducted at four monitoring stations three days per week in the reporting month.

viii.       No water samples can be collected at Stations AC3 and E during this reporting period as the stations were dried out during the monitoring.

ix.       Due to nearby construction works, Station I was temporarily inaccessible on 31 January 2024. The sampling shall be resumed in February 2024.

x.       No project related action or limit level exceedance was recorded in this reporting period.

 

Site Inspections and Audit

xi.       The Environmental Team (ET) conducted weekly site inspections during January 2024. No non-compliance was found during the site inspection while reminders and observations on environmental measures were recommended and recorded. Details can be referred to Section 7.

xii.       The Environmental Team (ET) conducted biweekly landscape site inspections January 2024. No non-compliance was found during the site inspection while reminders and observation on environmental measures were recommended and recorded. Details can be referred to Section 7.

xiii.       The Environmental Team (ET) conducted monthly ecological monitoring once in January 2024. No non-compliance was found during the site inspection while reminders and observation on environmental measures were recommended and recorded. Details can be referred to Section 7.

 

Complaints, Notifications of Summons and Successful Prosecutions

xiv.       2 documented environmental complaints were received by the ET. The investigation summary for all the complaint cases were reported in the Complaint Log in in Appendix 8.1.

 

Reporting Changes

xv.       There are no changes to be reported.

 

Future Key Issues

xvi.       In coming reporting 2 months, the scheduled construction activities and the recommended mitigation measures are listed in Table 9.1.

1      Introduction

1.1          Scope of the Report

1.1.1.     Lam Environmental Services Limited (LES) has been appointed to work as the Environmental Team (ET) under Environmental Permit (EP) no. EP-513/2016 to implement the Environmental Monitoring and Audit (EM&A) programme as stipulated in the EM&A Manual of the approved Environmental Impact Assessment (EIA) Report for Development of Anderson Road Quarry site - Road Improvement Works (Register No.: AEIAR-195/2016).

1.1.2.     In accordance with Clause 3.4 stated in EP-513/2016, four hard copy and one electronic copy of the monthly EM&A Report shall be submitted to the Director within 2 weeks after the end of each reporting month throughout the entire construction period.

1.1.3.     In accordance with Section 11.3.1 of the Project EM&A Manual, the first Monthly EM&A Report should be prepared and submitted to EPD within a month after the major construction works commences with the subsequently Monthly EM&A Reports due in 10 works day of the end of each reporting month.

1.2          Structure of the Report

Section 1        Introduction ¡V details the scope and structure of the report.

 

Section 2        Project Background ¡V summarizes background and scope of the project, site description, project organization and contact details of key personnel during the reporting period.

 

Section 3        Status of Regulatory Compliance ¡V summarizes the status of valid Environmental Permits / Licenses during the reporting period.

 

Section 4        Monitoring Requirements ¡V summarizes all monitoring parameters, monitoring methodology and equipment, monitoring locations, monitoring frequency, criteria and respective event and action plan and monitoring programmes.

 

Section 5        Monitoring Results ¡V summarizes the monitoring results obtained in the reporting period.

 

Section 6        Compliance Audit ¡V summarizes the auditing of monitoring results, all exceedances environmental parameters.

 

Section 7        Environmental Site Audit ¡V summarizes the findings of weekly site inspections undertaken within the reporting period, with a review of any relevant follow-up actions within the reporting period.

 

Section 8        Complaints, Notification of summons and Prosecution ¡V summarizes the cumulative statistics on complaints, notification of summons and prosecution

 

Section 9        Conclusion

2      Project Background

2.1          Background

2.1.1.     The Development of Anderson Road Quarry (ARQ) Site is to provide land and the associated infrastructures for the proposed land uses at the existing ARQ site at the north-eastern of East Kowloon.

2.1.2.     In addition to the site formation and infrastructure works within the ARQ site, a new bus-to-bus interchange (BBI) at the toll plaza of Tseung Kwan O Tunnel and a series of associated off-site road improvement works and pedestrian connectivity facilities are also proposed to mitigate the potential cumulative traffic impact arising from the proposed ARQ development.

2.1.3.     The Project under Environmental Permit (EP) (EP No. EP-513/2016) is intended for three associated off-site road improvement works which comprises: (i) improvement of junction of (J/O) Lin Tak Road / Sau Mau Ping Road (RIW3) (ii) widening and improvement of sections of Clear Water Bay Road and On Sau Road (RIW2); and (iii) widening and improvement of sections of New Clear Water Bay Road and Shun Lee Tsuen Road (RIW1). The location of the Project is shown Figure 2.1.

 

2.2          Scope of the Project and Site Description

2.2.1.     The project contains various Schedule 2 Designated Projects (DPs) that, under the EIAO, require EPs to be granted by the DEP before they may be either constructed or operated. Table 2.1 summarises the DPs under this Project.

Table 2.1      Schedule 2 Designated Projects under this Project

Item

Designated Project

EIAO Reference

DP2

A road which is an expressway, trunk road, primary distributor road or district distributor road including new roads, and major extensions or improvements to existing road

Schedule 2, Part I, A.1

 

2.3          Project Organization and Contact Personnel

2.3.1       Civil Engineering and Development Department is the overall project controllers for the Project. For the construction phase of the Project, Project Engineer, Contractor(s), Environmental Team and Independent Environmental Checker are appointed to manage and control environmental issues.

2.3.2       The proposed project organization and lines of communication with respect to environmental protection works are shown in Figure 2.2. Key personnel and contact particulars are summarized in Table 2.2:

Table 2.2 Contact Details of Key Personnel

Party

Role

Post

Name

Contact No.

Contact Fax

AECOM

Engineer¡¦s Representative

Senior Resident Engineer

Mr. Brad Chan

5506 0068

2473 3221

Chun Wo ¡V China Metallurgical Group Corporation Joint Venture

Contractor

Site Agent

Mr. Tak Yu Leung

3696 1833

3965 9854

Environmental Officer

Mr. Ken Chu

3965 9899

ANewR Consulting Limited

Independent Environmental Checker (IEC)

Independent Environmental Checker (IEC)

Mr. James Choi

2618 2836

3007 8648

Lam Environmental Services Limited

Environmental Team (ET)

Environmental Team Leader (ETL)

Mr. Victor Wong

3765 0649

2882 3331

 

2.4          Construction Activities

2.4.1       In coming reporting 2 months, the scheduled construction activities are listed as follows:

¡P       Construct RC works & backfilling at RWC2 Type 2 are in-progress.

¡P       ELS works at RWC2 Type 3 and Type 5 are in-progress.

¡P       Drainage diversion at RWC2 Type 4 is in-progress.

¡P       Watermain diversion at RWC2 Type 4 is in-progress.

¡P       RC works at RWC2 Type 2 to Type 5 is in-progress.

¡P       Backfilling works at Type 6 to 8 is in-progress.

¡P       Backfilling works at FE1-PC1b is in-progress.

¡P       Trial pits excavation at CT5 are in-progress.

¡P       Drainage diversion works at CT6.

¡P       ABWF works, E&M works and lift installation works in LT1 area are in-progress.

¡P       ABWF works, E&M works and lift installation works in LT2 area are in-progress.

¡P       Remaining Utilities, Drainage Works, and Road Works are in-progress at Portion B (U-turn Bay remaining area).

¡P       ELS works and RC works at SE2 Bay 13 to 21 are in-progress.

¡P       RC works at CT4 / SE2 in progress.

¡P       Excavate trial pits at Sau Mui Ping Road / Lin Tak Road for watermain alignment confirmation in-progress.

¡P       ELS works and watermain connection works at Sau Mun Ping Road / Hiu Kwong Street Sitting-out Area for watermain connection is in-progress.

¡P       Backfilling works at RWD1 Bay 1 ¡V 10.

¡P       ELS works for Noise Barrier SE1, VB1 pending on watermain connection point issue.

¡P       RC Works for Noise Barrier SE1 is in-progress.

¡P       Rock excavation at Slope D1 lower portion is in-progress.

¡P       Rock excavation using drill & split method, drainage works and road works at Slope D3 / Lin Tak Road are in-progress.

¡P       Excavate at Slope D4 is in-progress.

¡P       ELS works at Bridge F1-4 is in-progress.

 

 

 

 

3      Status of Regulatory Compliance

3.1          Status of Environmental Licensing and Permitting under the Project

3.1.1.     A summary of the current status on licences and/or permits on environmental protection pertinent to the Project is shown in Table 3.1.

Table 3.1 Summary of the current status on licences and/or permits on environmental protection pertinent to the Project

Permits and/or Licences

Permit. No. / Account No.

Valid From

Expiry Date

Status

Notification pursuant to Air Pollution Control (Construction Dust) Regulation

Form NA submitted to EPD on 29 May 2018.

Environmental Permit

EP-513/2016

21 Jul 2016

N/A

Valid

Billing Account for Disposal

Billing Account for Disposal of Construction Waste

7031075

20 Jul 2018

End of the Project

Valid

Chemical Waste Registration

Registration as a Waste Producer for Sau Mau Ping Road to Lin Tak Road

5213-294-C4239-04

6 Aug 2018

N/A

Valid

Registration as a Waste Producer for Sau Mau Ping Area between Him Tat House and Sau Mau Ping Salt Water Service Reservoir

5213-293-C4239-05

6 Aug 2018

N/A

Valid

Registration as a Waste Producer for New Clear Water Bay Road (Start from 46 Clear Water Bay Road, End at Shun Lee Tsuen Road and San Lee Street

5213-291-C4239-02

13 Aug 2018

N/A

Valid

Registration as a Waste Producer for South Part of Hiu Ming Street Playground

5213-294-C4239-03

6 Aug 2018

N/A

Valid

Registration as a Waste Producer for Clear Water Bay Road and New Clear Water Bay Road (From the intersection of Fei Ngo Shan Road to Tai Pan Court) and on Sau Road (From the intersection of New Clear Water Bay Road to 9 Anderson Road

5213-831-C4239-08

6 Aug 2018

N/A

Valid

Registration as a Waste Producer for Sau Mau Ping Area Between Anderson Road and On Sau Road, next to Oi Tat House

 

5213-292-C4239-06

6 Aug 2018

N/A

Valid

Water Discharge Licence

Water Pollution Ordinance Licence for Lin Tak Road to Sau Mau Ping Road including Tseung Kwan O Tunnel Toll Plaza

WT00032742-2018

18 Jan 2019

31 Jan 2024

Valid

Water Pollution Ordinance Licence for intersection of Fei Ngo Shan Road to Tai Pan Court and on Sau Road (From the intersection of New Clear Water Bay Road to 9 Anderson Road

WT00033299-2019

22 Jul 2021

31 Mar 2024

Valid

Water Pollution Ordinance Licence for Sau Mau Ping area between Him Tat House and Sau Mau Ping Salt Water service Reservoir

WT00033229-2019

24 Jun 2019

30 Jun 2024

Valid

Construction Noise Permit

CNP for a section of New Clear Water Bay Road in Area RIW1 for Pumping

GW-RE1512-23

6-Dec-23

5-Apr-24

Valid

 

3.2          Status of Submission under the EP-513/2016

3.2.1.     A summary of the current status on submission under EP-513/2016 is shown in Table 3.2.

Table 3.2 Summary of submission status under EP-513/2016

EP Condition

Submission

Date of Submission

Condition 1.12

Notification of Commencement Date of Works

24 September 2018

Condition 2.10

Management Organization of Main Construction Companies

27 September 2018

Condition 2.11

Submission of Design Drawing(s) of the Project

28 September 2018

Condition 2.12

Submission of Landscape and Visual Mitigation Plan(s)

28 September 2018

Condition 2.14 (a) and 2.15

Submission of Detailed Vegetation Survey Report

(2nd submission)

7 December 2018

Condition 2.14 (b) and 2.15

Submission of Transplantation Proposal

7 December 2018

Condition 3.3

Submission of Baseline Environmental Monitoring Report

(2nd submission)

18 December 2018

Condition 2.14 (c)

Transplantation Completion Report

3 May 2019

Condition 3.4

Monthly EM&A Report (November 2023)

14 December 2023

Condition 2.14(d)

Post-Transplantation Monitoring Report

6 April 2022

                                                                                                                        

4         Monitoring Requirements

4.1          Noise Monitoring

Noise Monitoring Stations

4.1.1.     The noise monitoring stations for the Project are listed and shown in Table 4.1 and Figure 4.1 & 4.2.

Table 4.1 Noise Monitoring Station

Monitoring Station ID

        Monitoring Location

Measurement Type

Level

(in terms of no. of floor)

NMC01

Kei Shun Special School

Façade

G/F

NMC02

Shun Lee Disciplined Services Quarters Block 6

Façade

3/F podium

NMC03

Sienna Garden Block 6

Free-field

G/F

NMC04

Po Tat Estate Tat Kai House

Free-field

3/F podium

NMC05

Hong Wah Court Block B Yee Hong House

Façade

G/F

 

Noise Monitoring Parameters, Frequency and Duration

4.1.2.     Noise monitoring shall be carried out at all the designated monitoring stations. The monitoring frequency shall depend on the scale of the construction activities. The following is an initial guide on the regular monitoring frequency for each station on a weekly basis when noise generating activities are underway:

¡P          One set of measurements between 0700-1900 hours on normal weekdays (six consecutive Leq/5min readings);

¡P          One set of measurements between 1900-2300 hours;

¡P          One set of measurements between 2300-0700 hours of next day; and

¡P          One set of measurements between 0700-2300 hours on holidays (three consecutive Leq/5min readings).

4.1.3.     For the latter 3 sets of measurements specified in Section 4.1.2 above, one set of measurements shall at least include 3 consecutive Leq (5min) results.

4.1.4.     Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

4.1.5.     If a school exists near the construction activity, noise monitoring shall be carried out at the monitoring stations for the schools during the examination periods. The ET leader shall liaise with the school¡¦s personnel and the examination authority to ascertain the exact dates and times of all examination periods during the course of the contract.

 

Monitoring Equipment

4.1.6.     Noise monitoring was performed using sound level meter at the designated monitoring locations. The sound level meters shall comply with the International Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator shall be deployed to check the sound level meters at a known sound pressure level. Brand and model of the equipment is given in Table 4.2.

 

Table 4.2   Noise Monitoring Equipment

Equipment

Brand and Model

Series Number

Integrated Sound Level Meter

Larson Davis LxT1

0006307

Acoustic Calibrator

Larson Davis CAL200

13098

 

4.1.7.     The calibration certificates of the noise monitoring equipment are attached in Appendix 4.2.

 

Sampling Procedure and Monitoring Equipment

4.1.8.     Monitoring Procedure

(a)        The monitoring station shall normally be at a point 1m from the exterior of the sensitive receiver¡¦s building façade and be at a position 1.2m above the ground.

(b)        Façade measurements were made at the monitoring locations. For free-field     measurement, a correction factor of +3 dB (A) would be applied.

(c)        The battery condition was checked to ensure the correct functioning of the meter.

(d)        Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:

(e)        Frequency weighting: A, Time weighting: Fast, Measurement time set: continuous 5 mins

(f)         Prior and after to the noise measurement, the meter was checked using the acoustic calibrator for 94dB (A) at 1000 Hz. If the difference in the calibration level before and after measurement was more than ¡Ó1 dB (A), the measurement would be considered invalid and repeat of noise measurement would be required after re-calibration or repair of the equipment.

(g)        Noise measurements shall not be made in fog, rain, wind with a steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m/s.

 

4.1.9.     Maintenance and Calibration

(a)        The microphone head of the sound level meter was cleaned with soft cloth at regular intervals.

(b)        The sound level meter and calibrator were calibrated at yearly intervals.

 

 

 

EVENT and action plan

4.1.10.   Noise Standards for Daytime Construction Activities are specified under EIAO-TM. The Action and Limit levels for construction noise are defined in Table 4.3 and Appendix 4.1. Should non-compliance of the criteria occurs, action in accordance with the Event and Action Plan in Appendix 6.1 shall be carried out.

 

Table 4.3 Action and Limit Level for Noise Monitoring

Monitoring Station

Action Level

Limit Level (dB(A))

0700-1900 hrs on normal weekdays

0700-2300 hrs on holidays (including Sundays); and 1900-2300 hrs on all days 2

2300-0700 hrs of all days 2

NMC01

When one documented complaint is received

65 / 70 1

60 / 65 / 70 3

45 / 50 / 55 3

NMC02

75

NMC03

75

NMC04

75

NMC05

75

Remark 1: Limit level of NMC01 - Kei Shun Special School reduce to 65 dB (A) during examination periods if any.

Remark 2: Construction noise during restricted hours is under the control of Noise Control Ordinance Limit Level to be selected based on Area Sensitivity Rating.

Remark 3: Limit Level for restricted hour monitoring shall act as reference level only. Investigation would be conducted on CNP compliance if exceedance recorded during restricted hour noise monitoring period.

 

4.2          Air Monitoring

Air Quality Monitoring Stations

4.2.1.     The air monitoring stations for the Project are listed and shown in Table 4.4 and Figure 4.3 & 4.4.

Table 4.4 Air Monitoring Station

Monitoring Station ID

Monitoring Location

Level (in terms of no. of floor)

NCWBR_AMS-1

Shun Lee Fire Station

2/F Roof

NCWBR_AMS-2

Shun Lee Estate Lee Hang House

G/F

NCWBR_AMS-3

Shun Lee Disciplined Services Quarters (Block 6)

4/F podium

NCWBR_AMS-4

Sienna Garden

G/F

NCWBR_AMS-5

Shun Chi Court Shun Fung House

Roof

LTR_AMS-1

St Edward's Catholic Primary School

G/F

LTR_AMS-2

Environmental Protection Department's Restored Landfill Site Office

G/F

LTR_AMS-3

Po Tat Estate Tat Kai House

3/F podium

 

Air Monitoring Parameters, Frequency and Duration

4.2.2.     One-hour TSP levels should be measured to indicate the impacts of construction dust on air quality.

4.2.3.     The sampling frequency of at least three times in every six-days should be undertaken when the highest dust impact occurs.

Sampling Procedure and Monitoring Equipment

4.2.4.     Monitoring Procedures

(a)           Check the calibration period of portable direct reading dust meter prior to monitoring (The direct reading dust meter was calibrated at 2-years interval and checked with High Volume Sampler (HVS) yearly.)

(b)           Record the site condition near / around the monitoring stations.

(c)           Install the portable direct reading dust meter to the monitoring location.

(d)           Slide the power switch to turn the power on.

(e)           Check of portable direct reading dust meter to ensure the equipment operation in normal condition.

(f)            Select the period of measurement to 60mins.

(g)           Check and set the correct time.

(h)           Select the appropriate unit display for the equipment.

(i)             Slide the power switch to turn the power off when the monitoring period ended (3 times 1 hour TSP monitoring per day).

(j)             Uninstall the portable direct reading dust meter

(k)           Collected the sampled data for analysis.

(l)             Remark: Procedures (c) to (h) may be different subject to the brands and models of portable direct reading dust meter

4.2.5.     Maintenance and Calibration

(a)           The direct reading dust meter was calibrated at 2-years interval and checked with High Volume Sampler (HVS) yearly to determine the accuracy and validity of the results measured.

(b)           Checking of direct reading dust meter will be carried out in order to determine the conversion factor between the direct reading dust meter and the standard equipment, HVS. The comparison check is to be considered valid based on correlation coefficient checked by HOKLAS laboratory.

4.2.6.     The 1-hour TSP air quality monitoring was performed by using portable direct reading dust meters at each designated monitoring station. The brand and model of the equipment are given in Table 4.5.

Table 4.5 Air Quality Monitoring Equipment

Equipment

Brand and model

Series Number

Portable direct reading dust meter

Met One BT- 645

X19295

X19297

X19298

 

Met One AEROCET 831

Y23154

Y23153

R14332

 

4.2.7.     The calibration certificate of the air quality monitoring equipment are attached in Appendix 4.2.

 

Wind Data

4.2.8.     The representative wind data from Tate¡¦s Cairn and Tseung Kwan O HKO Automatic weather Stations were obtained for the 1-hr TSP monitoring periods and shown in Appendix 4.3.

 

EVENT and action plan

4.2.9.     The Action and Limit levels for construction air quality are defined in Table 4.6 and Appendix 4.1. The Event and Action Plan as shown in Appendix 6.1 shall be implemented if non-compliance of the air quality criteria is identified.

Table 4.6 Action and Limit Level for Air Quality Monitoring

Monitoring Locations

1-hour TSP Level in £gg/m3

Action Level

Limit Level

NCWBR_AMS-1

284.4

500.0

NCWBR_AMS-2

282.4

500.0

NCWBR_AMS-3

287.9

500.0

NCWBR_AMS-4

281.6

500.0

NCWBR_AMS-5

270.0

500.0

LTR_AMS-1

272.1

500.0

LTR_AMS-2

281.1

500.0

LTR_AMS-3

285.1

500.0

 

4.3          Water Quality Monitoring

WATER QUALITY MONITORING STATIONS

4.3.1.     Water quality monitoring was undertaken at 7 monitoring stations in the reporting month. The proposed water quality monitoring stations of the Project are shown in Table 4.7 and Figure 4.5 & 4.6.

 

 

 

 

 

 

Table 4.7      Marine Water Quality Stations for Water Quality Monitoring

Inland Water

Stations

Description

Easting

Northing

Channelized streams across the Project site

E

Upstream Control Station

841329

821753

F

Downstream Impact Station

841469

821635

AC1

Upstream Reference Station

-

-

AC2

Upstream Reference Station

-

-

AC3

Upstream Reference Station

-

-

Ma Yau Tong Stream

H

Upstream Control Station

843008

819880

I

Downstream Impact Station

842652

819573

 

Water Quality Parameters, Frequency and Duration

4.3.2.     The levels of dissolved oxygen (DO), turbidity and pH shall be measured in situ while suspended solids (SS) is determined by laboratory analysis at all the designated monitoring stations.

4.3.3.     In association with the water quality parameters, other relevant data shall also be recorded, such as monitoring location / position, time, water temperature, salinity, DO saturation, weather conditions, and any special phenomena underway near the monitoring station.

4.3.4.     The sampling frequency of at least three days per week should be undertaken when the highest dust impact occurs. Upon completion of the construction works, the monitoring exercise at the designated monitoring locations should be continued for four weeks in the same manner as the impact monitoring.

4.3.5.     The interval between two sets of monitoring should not be less than 36 hours except where there are exceedances of Action and/or Limit Levels, in which case the monitoring frequency will be increased.

4.3.6.     Replicate in-situ measurements should be carried out in each sampling event.

Sampling Procedures and Monitoring Equipment

Dissolved Oxygen and Temperature Measuring Equipment

4.3.7.     The instrument should be a portable, weatherproof dissolved oxygen measuring instrument complete with cable, sensor, comprehensive operation manuals, and use a DC power source. It should be capable of measuring:

¡P          a dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation

¡P          a temperature of 0-45 degree Celsius

4.3.8.     It should have a membrane electrode with automatic temperature compensation complete with a cable. Sufficient stocks of spare electrodes and cables should be available for replacement where necessary. (e.g. YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved similar instrument).

4.3.9.     Should salinity compensation not be build-in in the DO equipment, in-situ salinity shall be measured to calibrate the DO equipment prior to each DO measurement.

Turbidity Measurement Instrument

4.3.10.   The instrument should be a portable, weatherproof turbidity-measuring instrument complete with comprehensive operation manual. The equipment should use a DC power source. It should have a photoelectric sensor capable of measuring turbidity between 0‑1000 NTU and be complete with a cable (e.g. Hach model 2100P or an approved similar instrument).

Sampler

4.3.11.   Due to low water level as mentioned in Section 6.4.3 of the EIA report, bucket sampler (Approximate 1L) will be use instead of water sampler in order to obtain surface water sample without disturb the stream sediment and collect representative results.

 

Salinity

4.3.12.   A portable salinometer capable of measuring salinity in the range of 0-70 ppt shall be provided for measuring salinity of the water at each of monitoring location.

Monitoring Methodology

4.3.13.   Monitoring Procedure

(a)           The condition near the monitoring stations shall be observed and recorded on the data log sheet.

(b)           Check of sensors and electrodes with certified standard solutions before each use.

(c)           Wet bulb calibration for a DO meter should be carried out before measurement.

(d)           Sample would be taken using bucket sampler at surface level.

(e)           Transfer the sampled water carefully into cleaned water bottles (2x 1000ml) provided by the laboratory at the spot after the collection of the water sample for the subsequent laboratory Suspended Solid testing.

(f)            Transfer the sampled water from the bucket sampler to the rinsed water container for in-situ measurement (In case of the in-situ measurement cannot be carried at spot due to safety and adverse weather condition, sampled water from the bucket sampler will be transfer to cleaned water bottles provided by laboratory. Then, In-situ measurement will be conducted at a safe location which sampled water inside cleaned water bottle will be transfer to the rinsed water container for in-situ measurement) In-situ measurement shall be measured in duplicate.

(g)           Parameters including Water Temperature (¢XC), pH (units), Salinity (ppt), DO (mg/L), DO saturation (%) will be measured by the Multifunctional Meter and Turbidity (NTU) will be measured by turbid meter. (Water Temperature and Salinity will be measured as reference parameters)

(h)           Record the result on the data log sheet and record any special finding during / after in-situ measurement.

(i)             The water sample bottles will be stored in a cool box (at cooled to 4¢J without being frozen), which shall be delivered to HOKLAS laboratory (ALS Technichem (HK) Pty Ltd) for further testing to determine the level of SS.

4.3.14.   Maintenance and Calibration

(a)           The responses of sensors and electrodes of the water quality monitoring equipment were cleaned and checked at regular intervals.

(b)           DO meter (Multifunctional Meter) and turbid meter was certified by a laboratory accredited under HOKLAS or any other international accreditation scheme, and subsequently re-calibrated at three monthly intervals.

4.3.15.   Brand and model of the equipment are given in Table 4.8.

 Table 4.8     Water Quality Monitoring Equipment

 

Equipment

Brand and model

        Series Number

Multifunctional Meter

YSI Professional Plus

20M100002

Turbid meter

Xin Rui WGZ-3B

1807073

2209057

 

4.3.16.   The calibration certificates of the water quality monitoring equipment are attached in Appendix 4.2.

 

Laboratory Measurement / Analysis

4.3.17.   Analysis of suspended solids has been carried out in a HOKLAS accredited laboratory, which is ALS Technichem (HK) Pty Ltd.

 

EVENT and action plan

4.3.18.   The Action and Limit levels for construction water quality are defined in Table 4.9 and Appendix 4.1. Should the monitoring results of the water quality parameters at any designated monitoring station exceed the water quality criteria, action in accordance with the Event and Action Plan in Appendix 6.1 shall be carried out.

 

 

 

 

 

 

 

 

 

Table 4.9 Action and Limit Level for Water Quality Monitoring

Monitoring Station

Surface pH

Surface DO (mg/L)

Surface Turbidity (NTU)

Surface SS (mg/L)

Action Level

Limit Level

Action Level

Limit Level

Action Level

Limit Level

Action Level

Limit Level

E

-

-

-

-

-

-

-

-

F

Beyond the range of 6.6-8.4

Beyond the range of 6.5-8.5

5.8

5.5

24.4

32.7

17.0

23.8

AC1

-

-

-

-

-

-

-

-

AC2

-

-

-

-

-

-

-

-

AC3

-

-

-

-

-

-

-

-

H

-

-

-

-

-

-

-

-

I

Beyond the range of 6.6-8.4

Beyond the range of 6.5-8.5

5.5

5.4

206.9

214.2

172.8

201.4

* Remarks:

The value of 1.0mg/L was taken as the value for measurement with suspended solid level of <1.0mg/L for Action and Limit level calculation.

It is recommended that upstream monitoring station (monitoring station E, AC1, AC2, AC3 and H) would be taken as control reference for exceedance investigation only. Action and limit level would not be establish using the baseline data.

If the SS and Turbidity recorded from the Control Stations (E, H, AC1, AC2, AC3) are higher than the Impact Stations (I and F) on the same day of measurement, 120% and 130% of the Control Stations' results would be referenced as the Action and Limit Levels.

 

5.      Monitoring Results

5.0.1      The environmental monitoring will be implemented based on the division of works areas of each designed projects. Overall layout showing work areas and monitoring stations is shown in Figure 2.1 and Figure 4.1 ¡V 4.6 respectively.

5.0.2      The environment monitoring schedules for reporting month and coming month are presented in Appendix 5.1.

 

5.1          Noise Monitoring Results

5.1.1       No action or limit level exceedance was recorded in this reporting month.

5.1.2       Noise monitoring results measured in this reporting period are reviewed and summarized. Details of noise monitoring results and graphical presentation can be referred in Appendix 5.2.

 

5.2          Air Monitoring Results

5.2.1       All 1-hour TSP monitoring was conducted as scheduled in the reporting month.

5.2.2       No action or limit level exceedance was recorded in this reporting month.

5.2.3       Air quality monitoring results measured in this reporting period are reviewed and summarized.  Details of air monitoring results and graphical presentation can be referred in Appendix 5.3. 

 

5.3          Water Quality Monitoring Results

5.3.1       No water samples can be collected at Stations AC3 and E during this reporting period as the stations were dried out during the monitoring.

5.3.2       Due to nearby construction works, Station I was temporarily inaccessible on 31 January 2024. The sampling shall be resumed in February 2024.

5.3.3       No action or limit level exceedance was recorded in this reporting month.

5.3.4       Water quality monitoring results measured in this reporting period are reviewed and summarized. Details of water quality monitoring results and graphical presentation can be referred in Appendix 5.4.

 

5.4          Waste Management

5.4.1      The quantities of waste for disposal in the Reporting Period are summarized in Table 5.1 and Table 5.2. The Monthly Summary Waste Flow Table is shown in Appendix 5.5. Whenever possible, materials were reused on-site as far as practicable.

 

Table 5.1 Summary of Quantities of Inert C&D Materials

Waste Type

Hard Rock and Large Broken Concrete (Inert) (in¡¥000m3)

Reused in this Contract (Inert)
(in ¡¥000m3)

Reused in other Projects (Inert)
(in ¡¥000m3)

Disposal as Public Fill (Inert)
(in ¡¥000m3)

Quantity (this month)

0

0

0.40076

1.904065

Quantity (Project commencement to the end of last month)

0

13.67865

27.405235

95.34961

Cumulative Quantity-to-Date

0

13.67865

27.805995

97.253675

Disposal Location

Nil

Nil

Nil

TKO137

 

Table 5.2 Summary of Quantities of C&D Wastes

Waste Type

Metals
(in ¡¥000kg)

Paper / Cardboard Packing
(in ¡¥000kg)

Plastics
(in ¡¥000kg)

Chemical Wastes
(in ¡¥000kg)

General Refuses
(in ¡¥000m3)

Quantity (this month)

0

0

0

0

0.0299

Quantity (Project commencement to the end of last month)

0.0808

2.587

25.423

0.197

2.35017

Cumulative Quantity-to-Date

0.0808

2.587

25.423

0.197

2.38007

Disposal Location

Nil

Nil

waste recycle was arranged

Nil

SENT

6.         Compliance Audit

6.0.1.     The Event Action Plan for construction noise, air quality and water quality are presented in Appendix 6.1.

6.0.2.     The summary of exceedance is presented in Appendix 6.2.

 

6.1          Noise Monitoring.

6.1.1       No project related action or limit level exceedance was recorded in this reporting period.

 

6.2          Air Quality Monitoring

6.2.1       No project related action or limit level exceedance was recorded in this reporting period.

 

6.3          Water Quality Monitoring

6.4          No project related action or limit level exceedance was recorded in this reporting period.

 

6.5          Review of the Reasons for and the Implications of Non-compliance

6.5.1       No environmental non-compliance was recorded in the reporting month.

 

6.6          Summary of follow-up action on non-compliance

6.6.1       There was no particular follow-up action taken and recorded in the reporting period.

7.         Environmental Site Audit

7.0.1.     Within this reporting month, weekly environmental site audits were conducted on 5, 12, 19 and 26 January 2024. IEC attended the joint site inspection on 12 January 2024.

7.0.2.     No non-compliance was found during the site inspection while reminders and observations on environmental measures were recommended and recorded. Results and findings of these inspections in this reporting month are listed below in Table 7.1.

Table 7.1 Summary of Environmental Inspections

 

Date

Reminder(s)/

Observation(s)

Action taken by Contractor

Outcome

5 January 2024

The pump for the muddy water pit is connected to the drainage gully. The muddy water should be treated in the AquaSed before discharging.

The pump was removed

Item was improved on 26 January 2024

12 January 2024

To maintain the noise barrier as mitigation measures.

The noise barrier was maintained

Item was improved in February 2024

19 January 2024

Drainage pump and AquaSed tank are not in operation. The wastewater treatment facilities should be operated to treat the site muddy water

The drainage was maintained and no muddy discharge was observed

Item was improved on 26 January 2024

19 January 2024

Works schedule and noise barriers at slope D3 should be reviewed to improve the noise mitigation measures

Item was pending to be improved

-

26 January 2024

Drainage pump is connected directly to gully. The drainage system should be redirect to sedimentation tank before discharging.

Item was pending to be improved

-

26 January 2024

The Contractor is reminded to maintain and improve the noise barriers.

Item was pending to be improved

-

       

7.0.3.     Within this reporting month, biweekly landscape site audits were conducted on 5 and 26 January 2024.

7.0.4.     No non-compliance was found during the landscape site inspection. Results and findings of these inspections in this reporting month are listed below in Table 7.2.

 

Table 7.2 Summary of Landscape site inspections

 

Date

Reminder(s)/

Observation(s)

Action taken by Contractor

Outcome

5 January 2024

Materials should be removed from the tree to avoid damage.

The materials are removed

Item was improved on 26 January 2024

 

7.0.5.     No non-compliance was found during the ecological monitoring.

8.        Complaints, Notification of Summons and Prosecution

8.0.1.     2 documented environmental complaints were reported in the reporting month.

8.0.2.     The cumulative complaint log and updated summary of complaints are presented in
Appendix 8.1.

8.0.3.     Cumulative statistic on complaints and successful prosecutions are summarized in Table 8.1 and Table 8.2 respectively.

Table 8.1 Cumulative Statistics on Complaints

Reporting Period

No. of Complaints

January 2024

2

Total

48

 

Table 8.2 Cumulative Statistics on Successful Prosecutions

Environmental Parameters

Cumulative No. Brought Forward

No. of Successful Prosecutions this month (Offence Date)

Cumulative No. Project-to-Date

Air

-

0

0

Noise

-

0

0

Water

-

0

0

Waste

-

0

0

Total

-

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

8.0.4.     QPME was observed on site at the slope of Lin Tak Road at RIW3. The contractor was recommended to review the implementation of QPMEs from time to time and considering using quieter PMEs whenever possible. Details of QPMEs are as shown in Table 8.4.

 

Table 8.4 QPME used for construction works

Type of construction equipment

Brand

Model no.

QPME ID

SWL

[dB(A)]

Excavator

335FLCR

CAT0335FCSGJ20540

QPME, EPD-08379

104

Excavator

SK200-8

YN12-65530

QPME, EPD-06168

99

 

9.         Conclusion

9.0.1.     The EM&A programme was carried out in accordance with the EM&A Manual requirements, minor alterations to the programme proposed were made in response to changing circumstances.

9.0.2.     The performance of the environmental management system of the previous three months (quarter) was generally satisfied. Mitigation measures according to the environmental mitigation implementation schedule and the EIA were generally implemented by the Contractor. Hence, the EM&A programme was considered effective and shall be maintained.

9.0.3.     The scheduled construction activities and the recommended mitigation measures for the coming 2 months are listed in Table 9.1. The construction programmes of the Project are provided in Appendix 9.1.

Table 9.1   Construction Activities and Recommended Mitigation Measures in Coming Reporting 2 Months

Key Construction Works

Recommended Mitigation Measures

¡P         Construct RC works & backfilling at RWC2 Type 2 are in-progress.

¡P         ELS works at RWC2 Type 3 and Type 5 are in-progress.

¡P         Drainage diversion at RWC2 Type 4 is in-progress.

¡P         Watermain diversion at RWC2 Type 4 is in-progress.

¡P         Backfilling works at Type 6 to 8 is in-progress.

¡P         Backfilling works at FE1-PC1b is in-progress.

¡P         Trial pits excavation at CT5 are in-progress.

¡P         Drainage diversion works at CT6.

¡P         Backfilling to drainage trench at KS27 (West Side) is in-progress; Preparation works for RC works at KS27 (West side) is in-progress; RC works at KS27 (East Side) near Lee Hang House at Shun Lee Estate.

¡P         Utilities, Drainage Works, and Road Works are in-progress at Portion B (U-turn Bay).

¡P         Install pipe-pile wall at SE2 (hill side toward Sai Keung direction) is in-progress; Excavate for expose utilities and utilities protection / diversion are in-progress.

¡P         ELS works and RC works at SE2 Bay 13 to 21 are in-progress.

¡P         RC works at CT4 / SE2 in progress.

¡P         Excavate trial pits at Sau Mui Ping Road / Lin Tak Road for watermain alignment confirmation in-progress.

¡P         ELS works and watermain connection works at Sau Mun Ping Road / Hiu Kwong Street Sitting-out Area for watermain connection is in-progress.

¡P         Backfilling works at RWD1 Bay 1 ¡V 10.

¡P         ELS works for Noise Barrier SE1, VB1 pending on watermain connection point issue.

¡P         RC Works for Noise Barrier SE1 is in-progress.

¡P         Rock excavation at Slope D1 lower portion is in-progress.

¡P         Rock excavation using drill & split method, drainage works and road works at Slope D3 / Lin Tak Road are in-progress.

¡P         Excavate at Slope D4 is in-progress.

¡P         ELS works at Bridge F1-4 is in-progress.

 

¡P       To minimize the dust impact to the surrounding ASRs, dust suppression measures stipulated in the Air Pollution Control (Construction Dust) Regulation should be incorporated to control dust emission from the site;

¡P       To reduce the noise impacts at the affected NSRs during normal daytime working hours, mitigation measures such as adopting quiet PME and construction noise barriers are recommended.

¡P       To alleviate the construction noise impact on the affected NSRs, construction noise barriers or enclosures would be erected to provide screening from the construction plant.

¡P       Surface run-off from construction sites should be discharged into storm drains via adequately designed sand/silt removal facilities such as sand traps, silt traps and sedimentation basins.

¡P       Silt removal facilities, channels and manholes should be maintained and the deposited silt and grit should be removed regularly, at the onset of and after each rainstorm to prevent local flooding.