CONTENTS

Executive Summary........................................................................................................................................................................ 1

1.                Basic Project Information.............................................................................................................................................. 1

2.                Noise....................................................................................................................................................................................... 5

3.                Water Quality .................................................................................................................................................................. 10

4.                Waste .................................................................................................................................................................................. 18

5.                Landfill Gas Monitoring .............................................................................................................................................. 18

6.                SUMMARY OF MONITORING EXCEEDANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTIONS ............................................................................................................................................................ 20

7.                EM&A Site Inspection .................................................................................................................................................. 22

8.                Future Key Issues .......................................................................................................................................................... 23

9.                Conclusions and Recommendations ..................................................................................................................... 24

 

 

 

Appendix A              Master Programme

 

Appendix B              Overview of Desalination Plant in Tseung Kwan O

 

Appendix C              Summary of Implementation Status of Environmental Mitigation

Appendix D             Impact Monitoring Schedule of the Reporting Month (Blank)

Appendix E              Event/Action Plan for Noise Exceedance

Appendix F              Noise Monitoring Equipment Calibration Certificate (Blank)

Appendix G              Event/Action Plan for Water Quality Exceedance

Appendix H             Waste Flow Table

Appendix I               Site Inspection Proforma

Appendix J               Complaint Log

Appendix K              Impact Monitoring Schedule of Next Reporting Month (Blank)

 

 

 


EXECUTIVE SUMMARY

INTRODUCTION

A1.         The Project, Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (TKODP), is a Designated Project under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO) and is currently governed by a Further Environmental Permit (EP No. FEP - 01/503/2015/A) for the construction and operation of the Project.

 

A2.         In accordance with the Updated Environmental Monitoring and Audit (EM&A) Manual for the Project, EM&A works for marine water quality, noise, waste management and ecology should be carried out by Environmental Team (ET), Acuity Sustainability Consulting Limited (ASCL), during the construction phase of the Project.

 

A3.         This is the 11th Monthly EM&A Report, prepared by ASCL, for the Project summarizing the monitoring results and audit findings of the EM&A programme at and around Tseung Kwan O Area 137 (TKO 137) during the reporting period from 1 January 2021 to 31 January 2021.

 

A4.         The EM&A programme for this contract has covered environmental monitoring on construction noise level at selected NSRs and Contractor¡¦s environmental performance auditing in the aspects of construction dust, construction noise, water quality, waste management, Landscape and Visual and Ecology.

 

SUMMARY OF MAIN WORKS UNDERTAKEN & KEY MITIGATION MEASURES IMPLEMENTED

 

A5.         Key activities carried out in this reporting period for the Project included the followings:

-            Land Survey;

-            Access Road Construction;

-            132kV substation internal finishing and E&M installation

-            Construction of ActifDAFF perimeter wall and water tank

-            Construction of RO/electrical building ground floor slab;

-            Construction for Product Water Storage Tank perimeter wall

-            Excavation and ELS installation for combine shaft;

-            Admiration building pile load test and footing construction

-            Construction of Main electrical and chiller plant building footing

-            Construction of post treatment building footing

 

 

A6.         The major environmental impacts brought by the above construction works include:

 

-            Construction dust and noise generation from access road construction, construction works, excavation and ELS installation works

-            Waste generation from the construction activities

 

A7.         The key environmental mitigation measures implemented for the Project in this reporting period associated with the above construction works include:

-            Dust suppression by regular wetting and water spraying for construction works

-            Reduction of noise from equipment and machinery on-site

-            Sorting and storage of general refuse and construction waste

 

 

SUMMARY OF EXCEEDANCE & INVESTIGATION & FOLLOW-UP

 

A8.         No noise monitoring was conducted during the reporting period since there are no project- related construction activities undertaken within a radius of 300m from the monitoring locations. No project-related exceedance of the Action Level was recorded during the reporting period.

 

A9.         No water quality monitoring was conducted in the reporting month since the commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest. No project-related exceedance of the Action Level was recorded during the reporting period.

 

A10.     Weekly site inspections of the construction work by ET were carried out on 5, 12, 19 and 29 January 2021 to audit the mitigation measures implementation status. Bi-weekly joint site inspection was carried out on 12 & 29 January 2021 by ET and IEC. Observations were recorded in the site inspection checklists and provided to the contractors together with the appropriate follow-up actions where necessary.

 

COMPLAINT HANDLING AND PROSECUTION

 

A11.     No project-related environmental complaint was received during the reporting period.

A12.     Neither notifications of summons nor prosecution was received for the Project.

REPORTING CHANGE

 

A13.     There was no change to be reported that may affect the on-going EM&A programme.

 

SUMMARY OF UPCOMING KEY ISSUES AND KEY MITIGATION MEASURES

A14.     Key  activities  anticipated  in  the  next  reporting  period  for  the  Project  will  include  the following:

-            Land Survey;

-            ELS installation and bulk excavation at combine shaft;

-            132kV substation internal finishing and E&M installation;

-            Construction of ActifDAFF perimeter wall and water tank;

-            Construction of RO/electrical building ground floor slab;

-            Construction for Product Water Storage Tank perimeter wall and footing of electrical building;

-            Construction of post treatment building footing;

-            Admiration building pile load test and footing construction;

-            Construction of Main electrical and chiller plant building footing

 

 

A15.     The major environmental impacts brought by the above construction works will include:

-        Construction dust and noise generation from ELS installation works and construction works

-        Waste generation from construction activities

 

 

 

A16.     The key environmental mitigation measures for the Project in the coming reporting period associated with the above construction works will include:

-        Dust suppression by regular wetting and water spraying for construction works

-        Reduction of noise from equipment and machinery on-site

-        Sorting and storage of general refuse and construction waste


 

 

 

1.                BASIC PROJECT INFORMATION

 

1.1.           BACKGROUND

The Jardine Engineering Corporation, Limited, China State Construction Engineering (Hong Kong) Limited and Acciona Agua, S.A. Trading As AJC Joint Venture (AJCJV) is contracted to carry out the Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant (DPTKO) under Contract No. 13/WSD/17 (the Project).

 

Acuity Sustainability Consulting Limited (ASCL) is commissioned by AJCJV to undertake the Environmental Team (ET) services as required and/or implied, both explicitly and implicitly, in the Environmental Permit (EP), Environmental Impact Assessment Report (EIA Report) (Register No. AEIAR-192/2015) and Environmental Monitoring and Audit Manual (EM&A Manual) for the Project; and to carry out the Environmental Monitoring and Audit (EM&A) programme in fulfillment of the EIA Report¡¦s EM&A requirements and Contract No. 13/WSD/17 Specification requirements.

 

Pursuant to the Environmental Impact Assessment Ordinance (EIAO), the Director of Environmental Protection granted the Environmental Permit (No. EP-01/503/2015) and Variation of Environmental Permit (No. EP-01/503/2015/A) to Water Supplies Department (WSD); and granted the Further Environmental Permit (No. FEP-01/503/2015/A) to AJCJV for the Project.

 

 

1.2.           THE REPORTING SCOPE

This is the 11th Monthly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 January to 31 January 2021.

 

 

1.3.           PROJECT ORGANIZATION

The Project Organization structure for Construction Phase is presented in Figure 1.1.

 

Figure 1.1       Project Organization Chart

 

 

Contact details of the key personnel are presented in Table 1.1 below:

 

Table 1.1         Contact Details of Key Personnel

 

 

Party

 

Position

 

Name

 

Telephone no.

 

Project Proponent

 

SE/CM2

 

Benny Lam

 

2634-3573

 

 

Supervising Officer (Black & Veatch)

 

Project Manager

 

Christina Ko

 

2608-7302

 

Chief Resident Engineer

 

Roger Wu

 

6343-1002

 

 

The Jardine Engineering Corporation, Limited, China State Construction Engineering (Hong Kong) Limited and Acciona Agua, S.A. Trading

 

Project Manager

 

Stephen Yeung

 

2807-4665

 

Environmental Monitoring Manager

 

 

Brian Kam

 

 

9456-9541

 

Acuity Sustainability Consulting Limited

 

Environmental Team Leader

 

Jacky Leung

 

2698-6833

 

 

ANewR Consulting Limited

 

Independent Environmental Checker (IEC)

 

 

Adi Lee

 

 

2618-2831

 

 

1.4.           SUMMARY OF CONSTRUCTION WORKS

Details of the major construction activities undertaken in this reporting period are shown in below. The construction programme is presented in Appendix A.

 

 

Key activities carried out in this reporting period for the Project included the following:

-        Land Survey;

-        Access Road Construction;

-        132kV substation internal finishing and E&M installation

-        Construction of ActifDAFF perimeter wall and water tank

-        Construction of RO/electrical building ground floor slab;

-        Construction for Product Water Storage Tank perimeter wall

-        Excavation and ELS installation for combine shaft;

-        Admiration building pile load test and footing construction

-        Construction of Main electrical and chiller plant building footing

-        Construction of post treatment building footing

 

 

1.5.           SUMMARY OF ENVIRONMENTAL STATUS

A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2.

 

Table 1.2         Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations

 

Permit/ Licenses/ Notification

Reference

Validity Period

Remarks

Environmental Permit

FEP - 01/503/2015/A

Throughout the Contract

 

Notification of Construction Works

under the Air Pollution

Control (Construction Dust) Regulation (Form NA)

Ref. No.: 451539

30/12/2019 -

30/03/2023

 

Wastewater Discharge Licence

WT00035775-2020

24/07/2020 -

31/07/2025

 

Chemical Waste Producer Registration

5213-839-A2987-01

Throughout the Contract

 

Construction Noise Permit (24 hours)

GW-RE0784-20

01/10/2020 -

31/03/2021

 

Billing Account for Disposal of

Construction Waste

7036276

Throughout the Contract

 

 

 

The status for all environmental aspects is presented in Table 1.3.

 

 

Table 1.3         Summary of Status for Key Environmental Aspects under the Updated EM&A Manual

 

Parameters

Status

Water Quality

Baseline Monitoring under EM&A Manual

The baseline water quality monitoring was conducted between 12 May 2020 to 6 Jun 2020

Impact Monitoring

The impact water quality monitoring has been scheduled after the commencement of marine construction works

Noise

Baseline Monitoring

The baseline noise monitoring result has been reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4

Impact Monitoring

On-going

Waste Management

Mitigation Measures in Waste Monitoring Plan

On-going

Environmental Audit

Site Inspection covering Measures of Air Quality, Noise Impact, Water Quality, Waste, Ecological Quality, Fisheries, Landscape and Visual

On-going

 

 

The impact monitoring schedule for the reporting month to be shown at Appendix D is intentionally left blank since no impact monitoring was conducted in the reporting month.

 

Other than the EM&A work by ET, environmental briefings, trainings and regular environmental management meetings were conducted, in order to enhance environmental awareness and closely monitor the environmental performance of the contractors.

 

The EM&A programme has been implemented in accordance with the recommendations presented in the approved EIA Report and the EM&A Manual. A summary of implementation status of the environmental mitigation measures for the construction phase of the Project during the reporting period is provided in Appendix C.

 

 

 

 

 


2.                NOISE

 

2.1.           MONITORING REQUIREMENTS

To ensure no adverse noise impact, noise monitoring is recommended to be carried out within 300m radius from the nearby noise sensitive receivers (NSRs), during construction phase. The NSRs selected as monitoring station are (i) NSR4 - Creative Secondary School, (ii) NSR24 - PLK Laws Foundation College, and (iii) NSR31 - School of Continuing and Professional Studies - CUHK respectively.

 

In accordance with the EM&A Manual, baseline noise level at the noise monitoring stations were established as presented in the Baseline Monitoring Report. Impact noise monitoring will be conducted once per week in the form of 30-minutes measurements Leq, L10 and L90 levels recorded at each monitoring station between 0700 and 1900 on normal weekdays.

 

Referring to EM&A manual Section 4.1.2, the impact noise monitoring should be carried out at all the designated monitoring stations when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations.

 

No impact monitoring for noise impact was conducted in the reporting month due to the overly distant monitoring station from the works location, where they were farther than 1 km from the closet monitoring station NSR4 to the works location.

 

Impact noise monitoring will be conducted weekly in the reporting period between 0700-1900 on normal weekdays. No construction works were carried out during 1900-0700 in all days or any time on Sundays or general holidays during the reporting period.

 

Construction noise level measured in terms of the A-weighted equivalent continuous sound pressure level (LAeq). Leq 30min was used as the monitoring parameter for the time period between 0700 and 1900 on normal weekdays. Table 2.1 summarizes the monitoring parameters, frequency and duration of the impact noise monitoring.

 

Table 2.1          Noise Monitoring Parameters, Time, Frequency and Duration

 

Time

Duration

Interval

Parameters

 

Daytime: 0700-1900

Day time: 0700-1900

(during normal weekdays)

Continuously in

Leq 5min/Leq 30min (average of 6 consecutive Leq 5min)

 

Leq 30min

L10 30min  & L90 30min

 

 

2.2.           MONITORING LOCATIONS

The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements.

 

 


According to the environmental findings detailed in the EIA report and Baseline Monitoring Report, the designated locations for the construction noise monitoring are listed in Table 2.2 below.

 

Table 2.2          Noise Sensitive Receivers

 

NSR ID

Noise Sensitive Receivers

Monitoring Location

Position

NSR 4

Creative Secondary School

Roof Floor

1 m from facade

 

NSR 24

 

PLK Laws Foundation College

Pedestrian Road on Ground Floor

 

Free-field

 

NSR 31

School of Continuing and Professional Studies - CUHK

 

Roof Floor

 

1 m from facade

 

The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements. Three noise monitoring locations for impact monitoring at the nearby sensitive receivers are shown in Figure 2.1-2.3.

 

 

 

 

Figure 2.1 NSR4 Creative Secondary School

 

 

 

 

Figure 2.2 NSR24 PLK Laws Foundation College

 

 

 

 

Figure 2.3 NSR31 School of Continuing and Professional Studies - CUHK

 

 

 

 


2.3.           IMPACT MONITORING METHODOLOGY

Integrated sound level meter shall be used for the noise monitoring. The meter shall be in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications. Immediately prior to and following each noise measurement the accuracy of the sound level meter shall be checked using an acoustic calibrator generating a known sound pressure level at a known frequency. Measurements may be accepted as valid only if the calibration levels before and after the noise measurements agree to within 1.0 dB(A). Calibration certificates of the instruments used to be shown at Appendix F are intentionally left blank since no impact monitoring equipment was used in the reporting month.

 

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

 

Table 2.3          Impact Noise Monitoring Equipment

 

Equipment

Brand and Model

Detection Limit

Sound Level Meter

Nti XL2

30-130 dB(A)

Sound Level Meter Calibrator

Rion NC-74

Nil

Pocket Wind Meter Anemometer

Kestrel 1000 Wind Meter

Nil

 

 

2.4.           ACTION AND LIMIT LEVELS

The Action/Limit Levels are  in line with the criteria of Practice Note for Professional Persons (ProPECC PN 2/93) ¡§Noise from Construction Activities - Non-statutory Controls¡¨ and Technical Memorandum on Environmental Impact Assessment Process issued by HKSAR Environmental Protection Department [¡§EPD¡¨] under the Environmental Impact Assessment Ordinance, Cap 499, S.16 are presented in Table 2.4.

 

Table 2.4          Action and Limit Levels for Noise per Updated EM&A Manual

 

 

Time Period

 

Action

 

Limit (dB(A))

 

0700-1900

weekdays

 

on

 

normal

When one documented complaint is received from any one of the noise sensitive receivers

     70 dB(A) for school and

     65 dB(A) during examination period

Notes: Limits specified in the GW-TM and IND-TM for construction and operation noise, respectively.

 

If exceedances were found during noise monitoring, the actions in accordance with the Event and Action Plan shall be carried out according to Appendix E.

 

 


2.5.           MONITORING RESULTS AND OBSERVATIONS

Referring to EM&A manual Section 4.1.2, the impact noise monitoring should be carried out when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations. No monitoring station was located within a radius of 300m of the Project site as shown in Figure 2.4, no impact monitoring for noise impact was conducted in the reporting period.

 

 

Figure 2.4       Site Layout Plan with Noise Sensitive Receivers and Desalination Plant

 

 

 

 

 


3.                WATER QUALITY

 

In accordance with the recommendations of the EIA, water quality EM&A is required during dredging for the submarine pipelines  and, during  operation phase. In addition, baseline water quality monitoring will be required prior to the commencement of marine construction activities. The following Section provides details of the water quality monitoring to be undertaken by the Environmental Team (ET) to verify the distance of sediment and brine plume dispersion and to identify whether the potential exists for any indirect impacts to occur to ecological sensitive receivers. The water quality monitoring programme will be carried out to allow any deteriorating water quality to be readily detected and timely action taken to rectify the situation. The status and locations of water quality sensitive receivers and the marine works location may change after issuing this Document. If required, the ET in consultation with IEC will propose updated monitoring locations and seek approval from EPD.

 

Water quality monitoring for the Project can be divided into the following stages:

 

-        Dredging activities during construction phase;

-        Discharge of effluent from main disinfection during construction phase;

-        Operation phase - first year upon commissioning; and,

-        Continuous monitoring of effluent quality.

 

In addition, the marine works contractor is required to complete a silt curtain efficiency test for the combined use of floating silt curtain type and cage type silt curtain for dredging at seawater intake to confirm the silt curtain reduction efficiency assumptions of the assessment. The details of testing plan together with the silt curtain deployment plan shall be submitted by the ET to seek approval from the IEC and EPD.

 

 

3.1.           IMPACT MONITORING METHODOLOGY

 

3.1.1.     WATER QUALITY PARAMETERS

The parameters that have been selected for measurement in situ and in the laboratory are those that were either determined in the EIA to be those with the most potential to be affected by the construction works or are a standard check on water quality conditions. Parameters to be measured in the baseline monitoring are listed in Table 3.1.

 

Table 3.1          Parameters measured in the baseline marine water quality monitoring

 

 

Parameters

 

Unit

 

Abbreviation

 

In-situ measurements

 

Dissolved oxygen

 

mg/L

 

DO

 

Temperature

 

oC

 

-

 

pH

 

-

 

-

 

Turbidity

 

NTU

 

-

 

Salinity

 

0/00

 

-

 

Total Residual Chlorine NOTE1

 

mg/L

 

TRC

 

Laboratory measurements

 

Suspended Solids

 

mg/L

 

SS

 

Iron-Soluble NOTE2

 

mg/L

 

Fe

 

Anti-scalant as Reactive Phosphorus NOTE2

 

mg/L

 

PO4 as P-

NOTE 1: Monitoring of TRC will be conducted when cleaning and sterilization of the new freshwater main is carried out.

 

NOTE 2: The testing methods shall be submitted to EPD for approval prior to the commencement of monitoring programme

 

In addition to the water quality parameters, other relevant data will also be measured and recorded in Water Quality Monitoring Logs, including the location of the sampling stations, water depth, time, weather conditions, sea conditions, tidal stage, current direction and velocity, special phenomena and work activities undertaken around the monitoring and works area that may influence the monitoring results.

 

 

3.1.2.     MONITORING EQUIPMENT

For water quality monitoring, the following equipment will be used:

 

Dissolved Oxygen and Temperature Measuring Equipment - The instrument will be a portable, weatherproof dissolved oxygen measuring instrument complete with cable, sensor, comprehensive operation manuals, and will be operable from a DC power source. It will be capable of measuring: dissolved oxygen levels in the range of 0 - 20 mg/L and 0 - 200% saturation; and a temperature of 0 - 45 degrees Celsius. It shall have a membrane electrode with automatic temperature compensation complete with a cable of not less than 35 m in length. Sufficient stocks of spare electrodes and cables shall be available for replacement where necessary (e.g. YSI model 59 DO meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved similar instrument).

 

Turbidity Measurement Equipment - The instrument will be a portable, weatherproof turbidity- measuring unit complete with cable, sensor and comprehensive operation manuals. The equipment will be operated from a DC power source, it will have a photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU and will be complete with a cable with at least 35 m in length (for example Hach 2100P or an approved similar instrument).

 

Salinity Measurement Instrument - A portable salinometer capable of measuring salinity in the range of 0 - 40 ppt will be provided for measuring salinity of the water at each monitoring location.

 

Water Depth Gauge - A portable, battery-operated echo sounder (for example Seafarer 700 or a similar approved instrument) will be used for the determination of water depth at each designated monitoring station. This unit will preferably be affixed to the bottom of the work boat if the same vessel is to be used throughout the monitoring programme. The echo sounder should be suitably calibrated. The ET shall seek approval for their proposed equipment with the client prior to deployment.

 

Current Velocity and Direction - No specific equipment is recommended for measuring the current velocity and direction. The environmental contractor shall seek approval of their proposed equipment with the client prior to deployment.

 

Positioning Device - A Global Positioning System (GPS) shall be used during monitoring to allow accurate recording of the position of the monitoring vessel before taking measurements. The Differential GPS, or equivalent instrument, should be suitably calibrated at appropriate checkpoint

(e.g. Quarry Bay Survey Nail) to verify that the monitoring station is at the correct position before the water quality monitoring commence.

 

Water Sampling Equipment - A water sampler, consisting of a PVC or glass cylinder of not less than two litres, which can be effectively sealed with cups at both ends, will be used (e.g. Kahlsico Water Sampler 13SWB203 or an approved similar instrument). The water sampler will have a positive latching system to keep it open and prevent premature closure until released by a messenger when the sampler is at the selected water depth.

 

Total Residual Chlorine for Discharge of Sterilization Water - Total residual chlorine (TRC) shall be measured in-situ using a handheld colorimeter with its testing toolkits.

 

 

3.1.3.     SAMPLING / TESTING PROTOCOLS

All in situ monitoring instruments will be checked, calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme before use, and subsequently re-calibrated at monthly intervals throughout the stages of the water quality monitoring. Responses of sensors and electrodes will be checked with certified standard solutions before each use.

 


On-site calibration of field equipment shall follow  the ¡§Guide to On-Site Test Methods for the Analysis of Waters¡¨, BS 1427: 2009. Sufficient stocks of spare parts shall be maintained for replacements when necessary. Backup monitoring equipment shall also be made available so that monitoring can proceed uninterrupted even when equipment is under maintenance, calibration etc.

 

 

3.1.4.     LABORATORY MEASUREMENT AND ANALYSIS

All laboratory work shall be carried out in a HOKLAS accredited laboratory. Sufficient volume of each water sample shall be collected at the monitoring stations for carrying out the laboratory analyses. Using chain of custody forms, collected water samples will be transferred to an HOKLAS accredited laboratory for immediate processing. The determination work shall start within the next working day after collection of the water samples. The laboratory measurements shall be provided to the client within 5 working days of the sampling event. Analytical methodology and sample preservation of other parameters will be based on the latest edition of Standard Methods for the Examination of Waste and Wastewater published by APHA, AWWA and WPCF and methods by USEPA, or suitable method in accordance with requirements of HOKLAS or another internationally accredited scheme. The submitted information should include pre-treatment procedures, instrument use, Quality Assurance/Quality Control (QA/QC) details (such as blank, spike recovery, number of duplicate samples per-batch etc), detection limits and accuracy. The QA/QC details shall be in accordance with requirements of HOKLAS or another internationally accredited scheme.

 

Parameters for laboratory measurements, their standard methods and their detection limits are presented in Table 3.2.

 

Table 3.2           Laboratory measurements, standard methods and corresponding detection limits of marine water quality monitoring

 

 

Parameters

 

Standard Methods

 

Detection Limit

 

Reporting Limit

 

Precision

 

Dissolved oxygen (mg/L)

 

Instrumental, CTD

 

0.1

 

-

 

+-25%

 

Temperature (oC)

 

Instrumental, CTD

 

0.1

 

-

 

+-25%

 

pH

 

Instrumental, CTD

 

0.1

 

-

 

+-25%

 

Turbidity (NTU)

 

Instrumental, CTD

 

0.1

 

-

 

+-25%

 

Salinity (0/00)

 

Instrumental, CTD

 

0.1

 

-

 

+-25%

 

Suspended Solids (mg/L)

 

APHA 17th Ed 2540D

 

1.0

 

2.0

 

+-17%

 

Total Residual Chlorine (mg/L)

 

APHA 21st  Ed 4500

- Cl G NOTE1

 

0.1NOTE1

 

0.2NOTE1

 

+-10% NOTE1

 

Iron-soluble

 

USEPA 6010C NOTE 1

 

0.2NOTE1

 

0.2NOTE1

 

+-25%NOTE1

 

Anti-scalant as Reactive phosphorus

 

APHA 4500P: B&F

NOTE1

 

0.01NOTE1

 

0.01NOTE1

 

+-25%NOTE1

NOTE1: The testing methods, Quality Assurance/Quality Control (QA/QC) details, detection limits and accuracy shall be submitted to EPD for approval prior to the commencement of monitoring

programme.

 

If exceedances were found during water monitoring, the actions in accordance with the Event and Action Plan shall be carried out according to Appendix G.

 

 

3.1.5.     MONITORING LOCATION

The water quality monitoring locations for baseline in accordance to the EM&A Manual and Contract Specification are shown in Figure 3.1 and Figure 4.1 respectively, and detailed in Table 3.3 below. A schedule for water quality monitoring shall be prepared by the ET and approved by IEC and EPD prior to the commencement of the monitoring.

 

Table 3.3                Location of Baseline Water Quality Monitoring Station

 

 

Station

 

Easting

 

Northing

 

Description

 

CE

 

843550

 

815243

 

Upstream control station at ebb tide

 

CF

 

846843

 

810193

 

Upstream control station at flood tide

 

WSR1

 

846864

 

812014

 

Ecological sensitive receiver at Tung Lung Chau

 

WSR2

 

847645

 

812993

 

Fisheries sensitive receiver at Tung Lung Chau

 

WSR3

 

848023

 

813262

 

Ecological sensitive receiver at Tung Lung Chau

 

WSR4

 

847886

 

814154

 

Ecological sensitive receiver at Tai Miu Wan

 

WSR16

 

845039

 

815287

 

Ecological sensitive receiver at Fat Tong Chau

 

WSR33

 

847159

 

814488

 

Ecological sensitive receiver at Tai Miu Wan

 

WSR36

 

846878

 

814081

 

Ecological sensitive receiver at Kwun Tsai

 

WSR37

 

846655

 

813810

 

Ecological sensitive receiver at Tit Cham Chau

 

NF1

 

846542

 

813614

 

Edge of mixing zone, ~ 200m west of outfall diffuser

 

NF2

 

846942

 

813614

 

Edge of mixing zone, ~ 200m east of outfall diffuser

 

NF3

 

846742

 

813414

 

Edge of mixing zone, ~ 200m south of outfall diffuser


 

WSR1 to WSR37 were identified in accordance with Annex 14 of the EIAO-TM as well as Clause

3.4.4.2 of the Environmental Impact Assessment Study Brief for Desalination Plant at Tseung Kwan O (No. ESB-266/2013). WSR1 to WSR3 are sited near the Tung Lung Chau Fish Culture Zone; WSR16 and WSR36 are sited near the coral assemblages along the coastlines of Fat Tong Chau and Kwun Tsai respectively; WSR 4 and WSR33 are sited near the Coastal Protection Area and coral assemblages in waters of Tai Miu Wan; WSR37 is sited near the fisheries resource including spawning and nursery grounds at the coastal water of Tit Cham Chau.

 

Figure 3.1         Baseline water quality monitoring locations under EM&A Manual

 

 

 

3.1.6.   SAMPLING FREQUENCY

During periods when there are dredging works, impact monitoring should be undertaken at the monitoring stations as shown in Figure 3.1 and Table 3.3 three days per week during the construction phase after the commencement of marine construction works and dredging activities. Monitoring at each station would be undertaken at both mid-ebb and mid-flood tides on the same day. The tidal range selected for the baseline monitoring will be at least 0.5 m for both flood and ebb tides as far as practicable. The interval between two sets of monitoring would not be less than 36 hours. The monitoring frequency would be increased in the case of exceedances of Action/Limit Levels if considered necessary by ET. Monitoring frequency would be maintained as far as practicable.

 

The monitoring location/position, time, water depth, water temperature, salinity, weather conditions, sea conditions, tidal stage, special phenomena and work underway at the marine works site will be recorded.

 

 

3.1.7.   SAMPLING DEPTHS & REPLICATION

For baseline monitoring, each station will be sampled and measurements/ water samples will be taken at three depths, 1 m below the sea surface, mid-depth and 1 m above the seabed. For stations that are less than 3 m in depth, only the mid depth sample shall be taken. For stations that are less than 6 m in depth, only the surface and seabed sample shall be taken. For in situ measurements, duplicate readings shall be made at each water depth at each station. Duplicate water samples shall be collected at each water depth at each station.

 

 

3.2.  MONITORING PROGRAMME

The ET of the Project had conducted the baseline water monitoring between 12 May 2020 to 6 Jun 2020 at the thirteen designated monitoring stations and the six designated monitoring at waters near TKO in accordance with the EM&A Manual and Contract Specification respectively. The monitoring results was presented in Baseline Water Quality Monitoring Report separately.

 

The commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest. The impact water monitoring shall be scheduled after the commencement of marine construction and dredging activities. Hence, no water monitoring was conducted during the reporting month.

 

 

 

 

 

4.                WASTE

 

The waste generated from this Project includes inert construction and demolition (C&D) materials, and non-inert C&D materials. Non- inert C&D materials are made up of general refuse, vegetative wastes and recyclable wastes such as plastics and paper/cardboard packaging waste. Steel materials generated from the project are also grouped into non-inert C&D materials as the materials were not disposed of with other inert C&D materials. With reference to relevant handling records and trip tickets of this Project, the quantities of different types of waste generated in the reporting month are summarised in Table 4.1. Details of cumulative waste management data are presented as a waste flow table in Appendix H.

 

Table 4.1          Quantities of Waste Generated from the Project during December 2020

 

 

 

 

 

 

 

Reporting Month

 

Actual Quantities of Inert C&D Materials Generated Monthly

 

Actual Quantities of C&D Wastes Generated Monthly

 

 

Total Quantity Generated

 

 

Hard Rock and Large Broken Concrete

 

 

Reused in the Contract

 

 

Reused in other Projects

 

 

Disposed as Public Fill

 

 

 

Imported Fill

 

 

 

 

Metals

 

 

Paper / cardboard packaging

 

 

 

Plastics (see Note)

 

 

 

Chemical Waste

 

 

Others, e.g. general refuse

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

(in ,000kg)

 

January 2021

 

6.930

 

0.000

 

0.000

 

0.000

 

6.930

 

0.000

 

0.000

 

0.000

 

0.000

 

0.000

 

64.860

 

Notes:  (1) Plastics refer to plastic bottles / containers, plastic sheets / foam from packaging material

 

 

 

 

 


5.                LANDFILL GAS MONITORING

 

5.1.           MONITORING REQUIREMENT

In accordance with Section 11 of the EM&A Manual, monitoring of landfill gas is required for construction works within the 250m Consultation Zone. Part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone; and part of the 1,200 mm diameter fresh water mains along Wan Po Road falls within the SENT Landfill and SENT Landfill Extension Consultation Zones, TKO Stage II/III Restored Landfill and TKO Stage I Restored Landfill Consultation Zones.

 

 

5.2.           MONITORING LOCATION

Monitoring of oxygen, methane, carbon dioxide and barometric pressure would be performed for excavations at 1m depth or more within the consultation Zone.

 

During construction of works within the consultation zones, excavations of 1m depth or more was monitored:

 

-        At the ground surface before excavation commences;

-        Immediately before any worker enters the excavation;

-        At the beginning of each working day for the entire period the excavation remains open; and

-        Periodically through the working day whilst workers are in the excavation.

 

 

For excavations between 300mm and 1m deep, measurements should be carried out:

 

-        Directly after the excavation has been completed; and

-        Periodically whilst the excavation remains open.

 

 

5.3.             MONITORING PROGRAMME

For the part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone in this contract, since the SENT Landfill Extension is still under construction, the Landfill gas monitoring shall be conducted after the commencement of operation of the SENT Landfill Extension which will be 2021 Quarter 3 according to the latest construction programme shown in the monthly EM&A Report of SENT Landfill Extension. The Contractor¡¦s safety officer shall keep review the necessity of landfill gas monitoring during the construction stage. No landfill gas monitoring was conducted in the reporting period.

 

 

 

 

 

 

 


6.                SUMMARY OF MONITORING EXCEEDANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTIONS

 

 

The Environmental Complaint Handling Procedure is shown in below Figure 6.1:

 

 

 

Figure 6.1       Environmental Complaint Handling Procedures

 

No noise monitoring was conducted during the reporting period since there are no project-related construction activities undertaken within a radius of 300m from the monitoring locations.

 

No impact water quality monitoring was conducted in the reporting month since the commencement of marine construction and dredging activities for the Project are scheduled in March 2021 the earliest.

 

No project-related exceedance of the Action Level was recorded during the reporting period. No notification of summons and prosecution was received in the reporting period.

Statistics on complaints and regulatory compliance are summarized in Appendix J.

 

 

 

 

 


7.                EM&A SITE INSPECTION

Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and  mitigation measures under the Contract. In the reporting period, site inspections were carried out on 5, 12, 19 and 29 January 2021 at the site portions list in Table 6.1 below.

 

Table 7.1         Summaries of Site Inspection Record

 

Date

Inspected Site Portion

Time

5 January 2021

TKO 137

14:35 - 17:00 PM

12 January 2021

TKO 137

14:30 - 17:00 PM

19 January 2021

TKO 137

14:30 - 17:00 PM

29 January 2021

TKO 137

09:30 - 12:00 PM

Two joint site inspection with IEC were carried out on 12 & 29 January 2021.

 

Environmental deficiencies were observed during weekly site inspection. Key observations during the site inspections and during the reporting period are summarized in Table 7 .2.

 

Table 7.2         Site Observations

 

Date

Environmental Observations

Follow-up Status

5 January 2021 (Site inspection)

Observation(s) and Recommendation(s)

1.   No major observation was observed.

Nil.

 

 

 

12 January 2021 (Site inspection)

Observation(s) and Recommendation(s)

1.       No major observation was observed.

2.       Housekeeping was reminded at the Combine Shaft area and the drainage channel near ActiDAFF area and the sea front main haul road (reminder).

Nil.

19 January 2021 (Site inspection)

Observation(s) and Recommendation(s)

1.   No major observation was observed.

Nil.

 

 

 

 

 

29 January 2021 (Site inspection)

Observation(s) and Recommendation(s)

1.       No major observation was observed.

2.       The Contractor was reminded to conduct regular water spraying during construction operations to limit dust emission (reminder).

3.       The Contractor was reminded to place all chemicals  inside  a  drip  tray  to  prevent

accidental   leakage   at    ActiDAFF   area

(reminder)

Nil.

 

According to the EIA Study Report, Environmental Permit, contract documents and EM&A Manual, the mitigation measures detailed in the documents are implemented as much as practical during the reporting period. An updated Implementation Status of Environmental Mitigation Measures (EMIS) is provided in Appendix C.

 

Site inspection proforma of the reporting period is provided in Appendix I.

 

 

 

 

 

8.                FUTURE KEY ISSUES

 

Works to be undertaken in the next reporting month are:

-        Land Survey;

-        ELS installation and bulk excavation at combine shaft;

-        132kV substation internal finishing and E&M installation;

-        Construction of ActifDAFF perimeter wall and water tank;

-        Construction of RO/electrical building ground floor slab;

-        Construction for Product Water Storage Tank perimeter wall and footing of electrical building;

-        Construction of post treatment building footing;

-        Admiration building pile load test and footing construction;

-        Construction of Main electrical and chiller plant building footing

 

The major environmental impacts brought by the above construction works will include:

-        Construction dust and noise generation from ELS installation works and construction works

-        Waste generation from construction activities

 

The key environmental mitigation measures for the Project in the coming reporting period associated with the above construction works will include:

-        Dust suppression by regular wetting and water spraying for construction works

-        Reduction of noise from equipment and machinery on-site

-        Sorting and storage of general refuse and construction waste

 

 

Referring to EM&A Manual Section 4.1.2, the impact noise monitoring should be carried out at all the designated monitoring stations when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations.

 

The impact monitoring schedule for the next reporting month to be shown at Appendix K is intentionally left blank since no impact monitoring will be conducted in the next reporting month.

 

 

 

 

 

 

 

 

 

 

 

 


9.                CONCLUSIONS AND RECOMMENDATIONS

 

This is the 11th Monthly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 January to 31 January 2021, in accordance with the EM&A Manual and the requirement under FEP-01/503/2015/A.

 

No noise monitoring was conducted in the reporting period due to the over distant monitoring station from the works location, in which construction activities were not undertaken within a radius of 300m from the monitoring locations.

 

No impact water monitoring was conducted in the reporting period due to no marine construction works and dredging activities were conducted in the reporting period.

 

No project-related exceedance of the Action / Limit Level was recorded during the reporting period.

 

Weekly environmental site inspection was conducted during the reporting period. Minor deficiency was  observed during  site inspection and was  rectified. The environmental performance of the project was therefore considered satisfactory.

 

According to the environmental site inspections performed in the reporting month, the Contractor is reminded to pay attention on maintaining proper materials storage.

 

No environmental complaint was received in the reporting period.

 

No notification of summons or prosecution was received since commencement of the Contract.

 

The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

 

 

 

 

 

Appendix A

 

 

 

 

Master Programme

 

 

 

 

 

 

 

 

 

 

Appendix B

 

 

 

 

Overview of Desalination Plant in Tseung Kwan O

 

 

 

 

 

 

 

 

 

 

Appendix C

 

 

 

 

Summary of Implementation Status of Environmental Mitigation

 

 

 

 

 


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

 

Implementation Agent

Implementation Stage

 

Implementation status

Relevant Legislation & Guidelines

D

C

O

Air Quality

 

S4.8.1

Impervious dust screen or sheeting will be provided to enclose scaffolding from the ground floor level of  building for construction of superstructure of the new buildings.

Land site/ During Construction

Contractor(s)

 

 

N/A

Air Pollution Control (Construction Dust)

S4.8.1

Impervious sheet will be provided for skip hoist for material transport.

Land site/ During Construction, particularly dry season

Contractor(s)

 

 

NA

 

S4.8.1

The area where dusty work takes place should be sprayed with water or a dust suppression chemical  immediately prior to, during and immediately after  dusty activities as far as practicable.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 

S4.8.1

All dusty materials should be sprayed with water or a  dust suppression chemical immediately prior to any loading, unloading or transfer operation.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Dropping heights for excavated materials should be controlled to a practical height to minimize the fugitive  dust arising from unloading.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 

S4.8.1

During transportation by truck, materials should not be loaded

to a level higher than the side and tail boards, and should be dampened or covered before  transport.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Wheel washing device should be provided at the exits of the work sites. Immediately before leaving a  construction site,

every vehicle shall be washed to remove any dusty material

from its body and wheels  as far as practicable.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Road sections between vehicle-wash areas and vehicular entrance will be paved.

Land site/ During Construction

Contractor(s)

 

 

Implemented

 


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

 

Implementation Agent

Implementation Stage

 

Implementation status

Relevant Legislation & Guidelines

D

C

O

S4.8.1

Hoarding of not less than 2.4m high from ground level will be provided along the length of the Project Site boundary.

Land site/ During construction

Contractor(s)

 

N/A

 

S4.8.1

Haul roads will be kept clear of dusty materials and will be sprayed with water so as to maintain the entire road surface wet at all times.

Land site/ During construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Temporary stockpiles of dusty materials will be either covered entirely by impervious sheets or sprayed with water to maintain the entire surface wet all the time.

Land site/ During construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Stockpiles of more than 20 bags of cement, dry pulverised fuel ash and dusty construction materials  will be covered entirely by impervious sheeting sheltered on top and 3-sides.

Land site/ During construction

Contractor(s)

 

 

Implemented

 

S4.8.1

All exposed areas will be kept wet always to minimise dust emission.

Land site/ During construction

Contractor(s)

 

 

Implemented

 

S4.8.1

Ultra-low-sulphur diesel (ULSD) will be used for all construction plant on-site, as defined as diesel fuel  containing not more than 0.005% sulphur by weight) as stipulated in Environment, Transport and Works  Bureau Technical Circular (ETWB-TC(W)) No 19/2005  on Environmental Management on Construction

Sites.

Land site/ During construction/ During Operation

Contractor(s)

 

Implemented

Environment, Transport and Works Bureau Technical Circular (ETWB- TC(W)) No 19/2005 on

Environmental

Management on Construction Sites

S4.8.1

The engine of the construction equipment during idling will be switched off.

Land site/ During construction

Contractor(s)

 

 

Implemented

 


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

 

Implementation Agent

Implementation Stage

 

Implementation status

Relevant Legislation & Guidelines

D

C

O

S4.8.1

Concrete batching plant will be required on site. control measures recommended in the Guidance Note on a Best Practicable Means for Cement Works (Concrete Batching Plant) (BPM 3/2 (93)) will be  implemented. The control measures recommended in the Guidance Note on a Best Practicable Means for Cement Works (Concrete Batching Plant) (BPM 3/2 (93)) will be  implemented.

Land site/ During construction

Contractor(s)

 

 

N/A

 

S4.8.1

Regular maintenance of construction equipment deployed

on-site will be conducted to prevent black smoke emission.

Land site/ During construction

Contractor(s)

 

 

Implemented

 

S4.10

To ensure proper implementation of the recommended  dust mitigation measures and good construction site practices during the construction phase, environmental  site audits on weekly

basis is recommended throughout the construction period.

Land site/ During construction

Contractor(s)/ Environmental Team (ET) & Independent

Environmental Checker (IEC)

 

 

Implemented

 

Note: D - Design stage C - Construction O - Operation


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation

& Guidelines

D

C

O

Noise

S5.7

Only well-maintained plant will be operated on-site  and plant will be serviced regularly during the  construction phase.

All area/ During construction

Contractor(s)

 

 

Implemented

A Practical Guide for the Reduction of Noise from Construction Works,

S5.7

Silencers or mufflers on construction

equipment will  be utilised and will be properly maintained during the  construction phase.

Noise control/

During construction

Contractor(s)

 

 

N/A

A Practical Guide for

the Reduction of Noise from Construction Works,

S5.7

Mobile plant, if any, will be sited as far away from NSRs as possible.

Noise control/ During construction

Contractor(s)

 

 

N/A

A Practical Guide for the Reduction of Noise from Construction Works,

S5.7

Machines and plant (such as trucks) that may be in intermittent use will be shut down between work periods or will be

throttled down to a minimum.

Noise control/ During construction

Contractor(s)

 

 

Implemented

A Practical Guide for the Reduction of Noise                   from

Construction Works,

S5.7

Plants known to emit noise strongly in one direction will, wherever possible, be orientated so that the noise is directed away from the nearby NSRs.

Noise control/ During construction

Contractor(s)

 

 

N/A

A Practical Guide for the Reduction of Noise from Construction Works,

S5.7

Material stockpiles and other structures will be effectively utilised, wherever practicable,

in screening  noise from on-site construction

activities.

Noise control/ During

construction

Contractor(s)

 

 

N/A

A Practical Guide for the     Reduction    of

Noise                  from

Construction Works,

S5.7

Use of Quite Powered Mechanical Equipment (QPME).

Noise control/ During construction

Contractor(s)

 

 

Implemented

A Practical Guide for the Reduction of Noise from Construction Works,

S5.7

Movable noise barriers of 3m in height with skid footing should be used and located within a few metres of stationary plant and mobile plant such that  the line of sight to the NSR is blocked by the barriers. The length of the barrier should be at least five times greater than its height. The noise barrier material  should have a superficial

surface density of at least 7  kg m-2 and have

Noise control/ During construction

Contractor(s)

 

 

N/A

A Practical Guide for the Reduction of Noise from Construction Works,


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation

& Guidelines

D

C

O

 

no openings or gaps.

 

 

 

 

 

 

 

S5.7

The noise insulating sheet should be deployed such that there would be no opening or gaps on the joints.

Noise control/ During construction

Contractor(s)

 

 

N/A

A Practical Guide for the Reduction of Noise from Construction Works,

S5.7

Construction activities (e.g. excavation/shoring, reinstatement (asphalt),

and pipe jacking) will be  planned and carried out in sequence, such that items of  PME proposed for these activities will not be operated simultaneously.

Noise control/ During

construction

Contractor(s)

 

Implemented

A Practical Guide for the     Reduction    of

Noise                  from Construction Works

S5.7

PMEs will not be used at the works areas near educational institutions with residual impact (ie the ¡§influence area¡¨ within a radius of 40m) during school hours in order to reduce impact to the educational

institutions.

Noise control / During construction

Contractor(s)

 

 

N/A

A Practical Guide for the Reduction of Noise from Construction Works

S5.7

Noise enclosures or acoustic sheds would be used to cover stationary PME such as generators.

Portable/Movable noise enclosure made of material with superficial surface density of at least 7 kg m-2 may  be used for screening the noise from operation of the saw/groover, concrete.

Noise control/ Pre- construction/ During construction

Contractor(s)

 

N/A

 

S5.9

Sawcutting pavement, breaking up of pavement, excavation /shoring, pipe

laying, backfilling,  reinstatement (concrete) and pipe jacking shall be scheduled outside the examination period.

Noise control/ Pre-

construction/ During construction

Contractor(s)

 

N/A

 


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation

& Guidelines

D

C

O

S5.9

In view the duration of noise exceedance at

Creative Secondary School, PLK Laws Foundation College, TKO Kei Tak Primary School and School of Continuing  and Professional Studies-CUHK is limited to 8 weeks,  the construction work in the influence areas near the four schools shall be scheduled during long school holidays (eg summer holiday, Easter holiday or Christmas holiday, etc) as far as practicable. Scheduling the construction  work for the four schools.

Noise control/ Pre-

construction/ During construction

Contractor(s)

 

N/A

 

S5.10

A noise monitoring programme shall be implemented for the construction phase.

Designated monitoring stations as defined in EM&A Manual/During construction phase

Environmental Team (ET)

 

 

N/A

 

S5.10

The effectiveness of on-site control measures could also be evaluated through the regular site audits.

All facilities/ During construction

Contractor(s)/ Environmental Team (ET) &

Independent Environmental

Checker (IEC)

 

 

Implemented

-

Note: D - Design stage C - Construction O - Operation


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation & Guidelines

D

C

O

Water Quality

S6.9

Dredged marine sediment will be disposed of in a gazetted marine disposal area in accordance with marine dumping permit conditions of the Dumping at Sea Ordinance (DASO).

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

Dumping at Sea Ordinance (DASO)

S6.9

Disposal vessels will be fitted with tight bottom seals in order to prevent leakage of material during transport.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

Barges will be filled to a level, which ensures that material does not spill over during transport to the

disposal site and that adequate freeboard is

maintained to ensure that the decks are not washed by wave action.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

After dredging, any excess materials will be cleaned from decks and exposed fittings before the vessel is moved from the dredging area.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

All vessels should be well maintained and inspected before use to limit any potential discharges to the marine environment.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

All vessels must have a clean ballast system.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

No discharge of sewage/grey wastewater should be allowed. Waste water from potentially contaminated area on working vessels should be minimized and collected.   These kinds of wastewater should be brought back to port and discharged at appropriate collection and treatment system.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-

S6.9

No soil waste is allowed to be disposed overboard.

Marine Dredging/ During construction

Contractor(s)

 

 

N/A

-


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation & Guidelines

D

C

O

S6.9

Silt removal facilities such as silt traps or sedimentation facilities will be provided to remove silt  particles from runoff to meet the requirements of the TM standard under the WPCO.   The design of silt removal facilities

will be based on the guidelines provided in ProPECC

PN 1/94.   All drainage facilities  and erosion and sediment control structures will be inspected on a regular basis and maintained to confirm  proper and efficient operation at all times and particularly during rainstorms.   Deposited silt and  grit will be removed regularly.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented, rectified after reminder

ProPECC PN 1/94 TM

Standard under the WPCO

S6.9

Earthworks to form the final surfaces will be followed up with surface protection and drainage works to prevent erosion caused by rainstorms.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented

-

S6.9

Appropriate surface drainage will be designed and provided where necessary.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented

-

S6.9

The precautions to be taken at any time of year when rainstorms are likely together with the actions to be taken when a rainstorm is imminent or forecasted and actions to be taken during or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94.

Land site & drainage/ During construction

Contractor(s)

 

Implemented

ProPECC PN 1/94

S6.9

Oil interceptors will be provided in the drainage system where necessary and regularly emptied to prevent the release of oil and grease into the storm water drainage system after accidental spillages.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented

-


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation & Guidelines

D

C

O

S6.9

Temporary and permanent drainage pipes and culverts provided to facilitate runoff discharge, if any, will be adequately designed for the controlled release of storm flows.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented

-

S6.9

The temporary diverted drainage, if any, will be reinstated to the original condition when the construction work has finished or when the temporary diversion is no longer required.

Land site & drainage/ During construction

Contractor(s)

 

 

N/A

-

S6.9

Appropriate numbers of portable toilets shall be provided by a licensed contractor to serve the construction workers over the construction site to prevent direct disposal of sewage into the

water environment.

Land site & drainage/ During construction

Contractor(s)

 

 

Implemented

-

S6.9 and S6.12

The sterilization water should be dechlorinated with total residual chlorine (TRC) level below 1 mg/L before discharge to public sewer. In situ testing of TRC should also be conducted for the discharge of chlorinated water for pipeline disinfection to ensure

sufficient dechlorination before discharge to public

sewer.

Sterilization of water mains prior to commissioning

Contractor(s)

 

N/A

Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland and Coastal Waters

S6.9

The cleaning and flushing water should also be treated and desilted to the relevant discharge requirement stipulated in TM-DSS before discharging.

Sterilization of water mains prior to commissioning

Contractor(s)

 

N/A

Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland and Coastal Waters


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation status

 

Relevant Legislation & Guidelines

D

C

O

S6.9

Site drainage should be well maintained and good construction practices should be observed to ensure that oil, fuels, solvents and other chemicals are managed, stored and handled properly and do not enter the nearby water streams.

Land site & drainage/ During construction/ During operation

Contractor(s)

 

Implemented

-

S6.12

Regular site inspections will be carried out in order to confirm that regulatory requirements are being met

and that contractors are implementing the standard site practice and mitigation measures as proposed to reduce potential impacts to water quality.

During construction

Contractor(s)/ Environmental

Team (ET) & Independent Environmental Checker (IEC)

 

 

Implemented

-

Note: D - Design stage C - Construction O - Operation


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

Waste Management

S8.5

Nomination of approved personnel to be responsible for standard site practices, arrangements for collection and effective disposal to an appropriate facility of all wastes generated at the site.

Contract mobilisation/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

Training of site personnel in proper waste management and chemical handling procedures.

Training will be provided to workers on the concepts of site cleanliness and appropriate waste management procedures, including waste reduction, reuse and

recycling at the beginning of the construction works.

Contract mobilisation/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

Provision of sufficient waste disposal points and regular collection for disposal.

All area/ During construction/ During operation

Contractor(s)

 

Implemented

DEVB TC(W) No. 8/2010,

Enhanced Specification for Site Cleanliness and Tidiness.

S8.5

Appropriate measures to reduce windblown litter and dust transportation of waste by either covering trucks or by transporting wastes in enclosed containers.

All area/ During construction

Contractor(s)

 

 

Implemented

DEVB TC(W) No. 8/2010,

Enhanced Specification for Site Cleanliness and Tidiness.

S8.5

A waste management plan (WMP) as stated in the ¡§ETWB TC(W) No. 19/2005, Environmental Management on Construction Sites¡¨ for the amount of waste generated, recycled and disposed of (including the  disposal sites) will be established and

implemented during the construction phase as part of

the Environmental Management Plan (EMP).   The Contractor will be required to prepare the EMP and submits it to the Architect/ Engineer under the Contract for approval prior to implementation.

All area/ During construction

Contractor(s)

 

 

Implemented

ETWB TC(W) No. 19/2005,

Environmental Management on Construction Sites

S8.5

Separation of chemical wastes for special handling and appropriate treatment at the Chemical Waste Treatment Centre at Tsing Yi.

All area/ During construction

Contractor(s)

 

 

N/A

Chapters 2 & 3 Code of Practice on the Packaging, Labelling & Storage of Chemical Wastes published under the Waste Disposal Ordinance (Cap 354),

Section 35

S8.5

Regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors.

Land site/ During construction

Contractor(s)

 

 

Implemented

Waste Disposal Ordinance (Cap 354)


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

S8.5

A recording system for the amount of wastes

generated/ recycled and disposal sites.   The trip- ticket system will be included as one of the contractual requirements and implemented by the contractor(s).

Land site/ During construction

Contractor(s)

 

 

Implemented

DEVB TC(W) No. 6/2010,

Trip Ticket System for Disposal of Construction & Demolition Materials

S8.5

Segregation and storage of different types of waste in different containers, skips or stockpiles to enhance

reuse or recycling of material and their proper disposal.

Land site/ During construction/ During operation

Contractor(s)

 

 

Implemented

WBTC 32/92, The Use of Tropical Hard Wood on

Construction Site

S8.5

Encourage collection of aluminium cans and waste paper by individual collectors during construction with separate labelled bins provided to segregate these wastes from other general refuse by the workforce.

Land site/ During construction

Contractor(s)

 

 

Implemented

ETWB TCW No. 33/2002,

Management of Construction and Demolition Material Including Rock

S8.5

Any unused chemicals and those with remaining functional capacity will be recycled as far as possible.

Land site/ During construction

Contractor(s)

 

 

N/A

-

S8.5

Use of reusable non-timber formwork to reduce the

amount of C&D materials.

All areas/ During construction

Contractor(s)

 

 

N/A

WBTC 32/92, The Use of

Tropical Hard Wood on Construction Site

S8.5

Prior to disposal of construction waste, wood, steel and other metals will be separated to the extent practical, for re-use and/or recycling to reduce the quantity of waste to be disposed of to landfill.

All areas/ During construction

Contractor(s)

 

 

Implemented

DEVB TC(W) No. 6/2010,

Trip Ticket System for Disposal of Construction & Demolition Materials

S8.5

Proper storage and site practices to reduce the potential for damage or contamination of construction materials.

All areas/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

Plan and stock construction materials carefully to reduce amount of waste generated and avoid

unnecessary generation of waste.

All areas/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

A Sediment Quality Report (SQR) for sampling and chemical testing of the sediment will be prepared and submitted to the EPD for approval.   The approved detailed sampling and chemical testing will be carried out prior to the commencement of the dredging activities to confirm the sediment disposal method.

Marine works/ During construction

Contractor(s)

 

 

N/A

ETWB TC(W) No. 34/2002

and Dumping at Sea Ordinance (DASO)

S8.5

The management of dredged/ excavated sediment management requirement from ETWB TC(W) No.

Marine works/ During construction

WSD/

Contractor(s)

 

 

Implemented

ETWB TC(W) No. 34/2002

and Dumping at Sea


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

34/2002 will be incorporated in the Specification of the Contract Documents.

 

 

 

 

 

 

Ordinance (DASO)

S8.5

The contractor will open a billing account with EPD in accordance with the Waste Disposal (Charges for Disposal of Construction Waste) Regulation for the payment of disposal charges.

Contract mobilisation/ During construction

Contractor(s)

 

 

Implemented

Cap 354N Waste Disposal (Charges for Disposal of Construction Waste) Regulation

S8.5

A trip-ticket system will be established in accordance with DEVB TC(W) No. 6/2010 to monitor the reuse of surplus excavated materials off-site and disposal of construction waste and general refuse at transfer

facilities/ landfills, and to control fly-tipping.

Contract mobilisation/ During construction

Contractor(s)

 

 

Implemented

DEVB TC(W) No. 6/2010,

Trip Ticket System for Disposal of Construction

& Demolition Materials

S8.5

The project proponent will also conduct regular inspection of the waste management measures implemented on site as described in the Waste Management Plan.

All area/ During construction

Contractor(s)/ Environmental Team (ET) & Independent Environmental Checker (IEC)

 

 

Implemented

ETWB TC(W) No. 19/2005,

Environmental Management on Construction Sites

S8.5

A recording system (similar to summary table as

shown in Annex 5 and Annex 6 of Appendix G of ETWB TC(W) No. 19/2005) for the amount of waste generated, recycled and disposed of (including the disposal sites) will be established during the construction phase.

All area/ During construction

Contractor(s)

 

 

Implemented

Annex 5 and Annex 6

of Appendix G of ETWB TC(W) No. 19/2005

S8.5

Inert C&D materials (public fill) will be reused within the Project as far as practicable.

All area/ During construction

Contractor(s)

 

 

N/A

-

S8.5

Public fill and construction waste shall be segregated and stored in different containers or skips to facilitate

reuse or recycling of materials and their proper disposal.

All area/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

Specific areas of the work site will be designated for such segregation and storage if immediate use is not practicable.

All area/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

To reduce the potential dust and water quality impacts

of site formation works, C&D materials will be wetted as quickly as possible to the extent practice after filling.

All area/ During construction

Contractor(s)

 

 

Implemented

Air Pollution Control

(Construction Dust) Regulation (Cap 311R); WPCO (Cap 358)

S8.5

Open stockpiles of excavated/ fill materials or

Land site/ During

Contractor(s)

 

 

Implemented

Air Pollution Control


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

construction wastes on-site should be covered with tarpaulin or similar fabric.

Construction, particularly dry season

 

 

 

 

 

(Construction Dust) Regulation (Cap 311R)

S8.5

Chemical waste container shall be suitable for the

substance they are holding, resistant to corrosion, maintained in a good condition, and securely closed.

All area/ During construction/

During operation

Contractor(s)/

WSD

 

Implemented

Waste Disposal (Chemical

Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

Chemical waste container shall have a capacity of less than 450 L unless the specifications have been approved by the EPD.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

A label in English and Chinese shall be displayed on  the chemical container in accordance with instructions

prescribed in Schedule 2 of the Regulations.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General)

Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

Storage areas for chemical waste shall be enclosed on at least 3 sides.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of

Chemical Wastes

S8.5

Storage areas for chemical waste shall have an impermeable floor and bunding, of capacity to accommodate 110% of the volume of the largest container or 20% by volume of the chemical waste stored in that area, whichever is the greatest.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

Storage areas for chemical waste shall have adequate ventilation.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

S8.5

Storage areas for chemical waste shall be covered to

prevent rainfall entering (water collected within the bund must be tested and disposed of as chemical waste, if necessary).

All area/ During construction/

During operation

Contractor(s)/

WSD

 

Implemented

Waste Disposal (Chemical

Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

Storage areas for chemical waste shall be arranged so that incompatible materials are appropriately separated.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes

S8.5

General refuse will be stored in enclosed bins or compaction units separately from construction and chemical wastes.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging,

Handling and Storage of Chemical Wastes

S8.5

Adequate number of waste containers will be provided to avoid over-spillage of waste.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

DEVB TC(W) No. 8/2010

Enhanced Specification for Site Cleanliness and Tidiness.

S8.5

A reputable waste collector will be employed by the Contractor to remove general refuse from the site, separately from construction and chemical wastes, on a daily basis to minimise odour, pest and litter impacts.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

-

S8.5

Recycling bins will be provided at strategic locations within the Site to facilitate recovery of recyclable

materials (including aluminium can, waste paper, glass bottles and plastic bottles) from the Site.

Materials recovered will be sold for recycling.

All area/ During construction/ During operation

Contractor(s)/ WSD

 

Implemented

-

S8.5

To avoid any odour and litter impact, accurate number of portable toilets will be provided for workers on-site.

All area/ During construction

Contractor(s)

 

 

Implemented

-

S8.5

The burning of refuse on construction sites is prohibited by law.

All area/ During construction

Contractor(s)

 

 

Implemented

Air Pollution Control Ordinance (Cap 311)

S8.7

To facilitate monitoring and control over the

contractors¡¦ performance on waste management, a waste inspection and audit programme will be

All facilities/ During construction

ET/ IEC

 

 

Implemented

-


 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

implemented throughout the construction phase.

 

 

 

 

 

 

 

Note: D - Design stage C - Construction O - Operation


 

 

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

Ecology

S9.7

For slope mitigation works within the Clear Water Bay Country Park, to avoid tree felling and damages to trees, the exact locations of the flexible barrier foundation plates, soil nails and rock dowels can be adjusted during detailed design, and a setback

distance from existing trees is recommended to be maintained as far as practical. A detailed specification

describing the exact locations of the  flexible barrier

foundation plates, soil nails and rock  dowels will be prepared to illustrate how the setback distance from existing trees would be implemented for  tree avoidance.

Slope mitigation works area/ During detailed design/ During construction

Contractor(s)

 

Implemented

-

S9.7

Pruning of tree canopies along the alignment of the flexible barriers shall be limited to a minimum.

Slope mitigation works area/ During construction

Contractor(s)

 

 

Implemented

 

S9.7

The alignment of flexible barriers shall be optimized to

preserve all species of conservation interest and minimize the impact to the existing vegetation as far as practicable.   All individuals of Marsdenia lachnostoma within the slope mitigation areas shall be retained in- situ, by positioning the alignment of flexible barrier at  a minimum 1.5m in a radius away from these individuals.

Slope mitigation works

area/ During detailed design/ During construction

Contractor(s)

 

N/A

-

S9.7 and 9.10

At the detailed design stage prior to the commencement of the slope mitigation works, a vegetation survey shall be carried out at the slope mitigation areas within the Clear Water Bay Country

Park to assess the condition and identify the location of each individual of Marsdenia lachnostoma and other flora species of conservation interest that may be directly affected by the construction works.

Slope mitigation works area/ During detailed design/ During construction

Contractor(s)

 

Implemented

-

S9.7

Temporary fencing will be installed to fence off the concerned species either in groups of individually within the works area and in the close proximity to prevent from being damaged and disturbed during construction. A sign identifying the site shall be

attached to the fence and flagging tape shall be

attached to the individuals to visualize their locations.

Slope mitigation works area/ During construction

Contractor(s)

 

 

N/A

-


 

 

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

S9.7 and S9.10

A specification for fencing and demarcating individuals of Marsdenai lachnostoma (or other flora species of conservation interest, if found) adjacent to the proposed alignment of the flexible barriers will be  prepared to protect the species.

Slope mitigation works area/ During construction

Contractor(s)

 

 

N/A

-

S9.7

Induction training shall also be provided to all site personnel in order to brief them on this flora of

conservation interest including the locations and their  importance.

Slope mitigation works area/ During construction

Contractor(s)

 

 

N/A

-

S9.7

The resident site supervisory staff will closely monitor the conditions of concerned individuals during construction of flexible barriers in the close proximity.

Slope mitigation works area/ During construction

Contractor(s)

 

 

N/A

-

S9.7

Erect fences along the boundary of the works area before the commencement of works to prevent vehicle  movements and encroachment of personnel onto  adjacent areas.

All area/ During construction

Contractor(s)

 

 

Implemented

-

S9.7

Regularly check the work site boundaries to ensure that they are not breached and that damage does not occur to surrounding areas.

All area/ During construction

Contractor(s)/ Environmental

Team (ET)

 

 

Implemented

-

S9.7

Avoid any damage and disturbance, particularly those caused by filling and illegal dumping, to the surrounding habitats through proper management of waste disposal.

All area/ During construction

Contractor(s)

 

 

Implemented

-

S9.7

Reinstate temporarily affected areas, particularly the habitats of plantation and shrubland-grassland immediately after completion of construction works, through on-site tree/shrub planting. The tree/shrub

species will be chosen with reference to those in the surrounding area.

All area/ During construction

Contractor(s)

 

 

N/A

-

S9.7

Affected habitats within the Clear Water Bay Country Bay shall be reinstated by hydro-seeding and planting of climbers and native shrub seedlings where practical upon completion of the slope mitigation works.

All area/ During construction

Contractor(s)

 

 

N/A

-

Note: D - Design stage C - Construction O - Operation


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

Landscape & Visual

S11.10 & 11.11

The construction area and area allowed for temporary  structures, such as the contractor¡¦s office, will be  minimized to a practical minimum.   (MM1)

All area/ Detailed design/ During construction/ During operation

WSD/

Contractor(s)

Implemented

-

S11.10 & 11.11

At the detailed design stage, the design team will seek to minimize the landscape footprint of the Project and above ground facilities,

while satisfying all other  requirements. (MM2)

All area/ Detailed design/ During

construction/ During operation

WSD/

Contractor(s)

Implemented

-

S11.10 & 11.11

Design principles will be adopted to take into account  the surrounding area, particularly Clear Water Bay  Country Park behind and the nearby waterfront, with due consideration given

to:

-  green roofs where practical (ie without equipment on the roof);

-  roadside planting;

-  aesthetic treatment of all structures;

-  vertical greening;

screen planting along application site; and

- landscape enhancement with amenity planting where  practical including planting along the edge (site  boundary) fence with native shrubs where feasible,

- to reduce their visual impact and blend them into the  surrounding landscape.   (MM3)

All area/ Detailed design/ During construction/ During

operation

WSD/

Contractor(s)

Implemented

-

S11.10 &

11.11

All trees within the Project Site or the potential slope mitigation

works area will be carefully protected during construction according to DEVB TCW No.

10/2013 - Tree Preservation (MM4)

All area/ Detailed

design/ During construction/ During operation

WSD/

Contractor(s)

Implemented

ETWB TCW No. 3/2006 -

Tree

Preservation.

S11.10 & 11.11

No tree within the Country Park will be felled.   Trees  within the Site unavoidably affected by the works will be transplanted where

necessary and practical.   For  trees that need to be felled,

compensatory planting will be provided to the satisfaction of relevant Government departments.

A compensatory tree planting proposal including locations of tree compensation will be submitted to seek relevant government department¡¦s approval, in  accordance with DEVB TC(W) No. 10/2013.   (MM5)

All area/ Detailed design/ During

construction/ During

operation

WSD/

Contractor(s)

Implemented

DEVB TC(W) No. 10/2013

S11.10 &

Any slope mitigation works necessary to address  natural terrain

All area/ Detailed

WSD/

N/A

 


 

 

EIA

Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

11.11

hazards, will be minimized to minimize any potential environmental impact to the Country Park e.g. soil nailing and rock stabilization will aim to  avoid existing trees e.g. should any restoration of vegetation be necessary, the best planting matrix with  native species will be established, with the aim of resembling the existing vegetation.                               (MM6)

design/ During construction/ During operation

Contractor(s)

 

 

 

 

 

S11.10 & 11.11

Dredging works for the installation of intake structures  and outfall diffusers should be minimized to avoid or reduce any potential

environmental impacts to as low  as reasonably practicable  (ALARP). The intake and outfall structures (e.g. intake openings and diffuser  heads) will be prefabricated and transferred to site for installation.   (MM7)

All area/ Detailed design/ During

construction/ During operation

WSD/

Contractor(s)

N/A

 

S11.10 & 11.11

All night-time lighting will be reduced to a practical  minimum both in terms of number of level and will be hooded and directional. (MM8 )units and lux level and will be hooded and

directional. (MM8)

All area/ Detailed design/ During construction/ During

operation

WSD/

Contractor(s)

Implemented

-

Note: D - Design stage C - Construction O - Operation


 

 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

Landfill Gas Hazard

S12.7

During all works, safety procedures should

be implemented to minimise the risks of  fires and explosions, asphyxiation of workers and toxicity  effects resulting from contact with contaminated soil  and groundwater.

All area/ Detailed

design/ During construction/ During operation

Contractor(s)

Implemented

-

S12.7

During trenching and excavation as well as creation of confined spaces at near to or below ground level, precautions should be clearly laid down and rigidly  Gas detection equipment and appropriate breathing  apparatus should be available and used when entering  confined spaces or trenches deeper than 1 metre.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

N/A

 

S12.7

The Contractor should make the workers are aware of potential hazards of working in confined spaces (any chamber, manhole or culvert which is large enough to permit access to personnel).   Such work in confined  spaces

is controlled by the Factories and Industrial Undertakings (Confined Spaces) Regulations of the  Factories and Industrial Undertakings Ordinance.

Following the Safety Guide to Working in Confined  Spaces ensures compliance with the above regulations.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

Implemented

 

S12.7

Safety officers, specifically trained with regard to  landfill gas and leachate related hazards and the  appropriate actions to take in adverse circumstances,  should be present on the site

throughout the works, in particular, when works are undertaken below grade.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

Implemented

 

S12.7

All personnel who work on site and all visitors to the site should be made aware of the possibility of ignition of gas in the vicinity of the works, the possible  presence of contaminated water and the need to avoid

All area/ Detailed design/ During construction/ During operation

Contractor(s)

Implemented

 


 

 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

physical contact with it.

 

 

 

 

 

 

 

S12.7

Monitoring for landfill gas should be undertaken in all excavations, manholes,

chambers (particularly during  pipe jacking) and any confined spaces through the use of an intrinsically safe portable instrument,

appropriately calibrated and capable of

measuring the  concentrations of methane. carbon dioxide and oxygen.

All area/ Detailed design/ During

construction/ During operation

Contractor(s)

N/A

 

S12.7

Monitoring frequency and areas to be

monitored should be specified prior to commencement of groundwork, either by the Safety Officer, or by an appropriately qualified person.   All measurements should be recorded and documented.

All area/ Detailed

design/ During construction/ During operation

Contractor(s)

N/A

 

S12.7

Proceed drilling with adequate care and precautions against the potential hazards which may be encountered.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

Implemented

 

S12.7

Prior to the commencement of the site works,

the drilling contractor should devise a 'method-of- working' statement covering all normal and  emergency procedures (including but not limited to  number of operatives, experience and special skills of  operatives, normal method of operations, emergency procedures, supervisors responsibilities, storage and  use of safety equipment, safety procedures and signs,  barriers and guarding). The site supervisor and all  operatives must  be familiar with this statement.

All area/ During

construction/ During operation

Contractor(s)

Implemented

 


 

 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

S12.7

Where below ground service entries are necessary to the Incoming Switchgear Room, 132 kV Substation and Chlorine Store (I) and (II), the entry point should be sealed to prevent gas entry.   In addition, any below grade cable trenches entering the Incoming Switchgear

Room and 132 kV Substation can become the pathway for landfill gas and hence grilled metal

covers should  be used.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

N/A

 

S12.7

It is recommended regular landfill gas monitoring  should be carried out at the Incoming Switchgear Room, 132 kV Substation and Chlorine Store (I) and (II). The monitoring frequency will be monthly for the first year of operation. If the monitoring results  show no sign of landfill gas migration, reduce the monitoring frequency to once every six months.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

N/A

 

S12.7

The manholes and utility pits within the Project Site  and along the fresh water mains. Each manhole/  utility pit should be monitored with two measurements (at mid depth and base). Each  measurement should be monitored for a minimum of 10 minutes. A steady reading and peak reading should be

recorded at each manhole/ utility pit and for

each measurement.   The need for venting the manhole/ utility pit and further monitoring will be reviewed after the initial monitoring.

All area/ Detailed design/ During construction/ During operation

Contractor(s)

N/A

 

S12.7

All construction, operation and maintenance personnel  working on-site as well as visitors

should be made aware of the hazards of landfill gas and its possible presence on-site. This should be achieved through a combination of posting warning signs in prominent places and also by access to detailed information on landfill gas hazards and the designs and procedural  means by which these hazards are

All area/ Detailed design/ During

construction/ During operation

Contractor(s)

Implemented

 


 

 

 

EIA Reference

 

Recommended Environmental Protection Measures/ Mitigation Measures

 

Objectives of the recommended measures & main concerns to address

 

Implementation Agent

Implementation Stage

Implementation Status

 

Relevant Legislation & Guidelines

D

C

O

 

being minimized on-site.

 

 

 

 

 

 

 

Note: D - Design stage C - Construction O - Operation


 

 

 

 

 

Appendix D

 

 

 

 

Impact      Monitoring    Schedule     of    the Reporting Month (BLANK)

 

 

 

 

 

(BLANK)

 

 

 

 

 

Appendix E

 

 

 

 

Event/Action Plan for Noise Exceedance

 

 

 

 

 

 

 

 

 

 

Appendix F

 

 

 

 

Noise    Monitoring  Equipment  Calibration Certificate (BLANK)

 

 

 

 

 

(BLANK)

 

 

 

 

 

Appendix G

 

 

 

 

Event/Action     Plan   for    Water    Quality Exceedance

 

 

 

 

 

 

 

 

 

 

Appendix H

Waste Flow Table

 

 

 

 

 

 

 

 

 

 

Appendix I

 

 

 

 

Site Inspection Proforma

 

 

 

 

 

 

 

 

 

 

Appendix J

Complaint Log


 

Statistical Summary of Environmental Complaints

 

Reporting Period

Environmental Complaint Statistics

Frequency

Cumulative

Complaint Nature

01 Jan 2021 -

 

31 Jan 2021

 

 

0

 

 

0

 

 

N/A

 

 

 

 

Statistical Summary of Environmental Summons

 

Reporting Period

Environmental Summons Statistics

Frequency

Cumulative

Details

01 Jan 2021 -

 

31 Jan 2021

 

 

0

 

 

0

 

 

N/A

 

 

 

 

Statistical Summary of Environmental Prosecution

 

Reporting Period

Environmental Prosecution Statistics

Frequency

Cumulative

Details

01 Jan 2021 -

 

31 Jan 2021

 

 

0

 

 

0

 

 

N/A


 

 

 

 

 

Appendix K

 

 

 

 

Impact     Monitoring   Schedule    of    Next Reporting Month (BLANK)


 

 

 

 

 

(BLANK)