Civil Engineering and Development Department

Fill Management Division

5/F, Civil Engineering and Development Building

101 Princess Margaret Road

Homantin, Kowloon

 

 

 

 

Demolition of Buildings and Structures in the Proposed Kennedy Town Comprehensive Development Area Site

Environmental Permit No.

EP-136/2002/B

Monthly EM&A Report for Jan 2008

(Phase 1 Part 1) Rev A

 

Report No.: 203204/EM&A/4/A

February 08

 

 

 

 

 

 

Mott Connell Limited

7/F, West Wing Office Building

New World Centre

20 Salisbury Road

Tsim Sha Tsui, Kowloon

Hong Kong

 

Tel: 2828 5757

Fax: 2827 1823

 

This document has been prepared for the titled project or named part thereof and should not be relied upon or used for any other project without an independent check being carried out as to its suitability and prior written authority of Mott Connell being obtained.  Mott Connell accepts no responsibility or liability for the consequence of this document being used for a purpose other than the purposes for which it was commissioned.  Any person using or relying on the document for such other purpose agrees, and will by such use or reliance be taken to confirm his agreement to indemnify Mott Connell for all loss or damage resulting therefrom.  Mott Connell accepts no responsibility or liability for this document to any party other than the person by whom it was commissioned.

 

To the extent that this report is based on information supplied by other parties, Mott Connell accepts no liability for any loss or damage suffered by the client, whether contractual or tortious, stemming from any conclusions based on data supplied by parties other than Mott Connell and used by Mott Connell in preparing this report.

 

 

 

 

 

 

 

 

 

Pursuant to Condition 3.5 of the Environmental Permit

EP-136/2002/B

This Monthly EM&A Report (Jan 2008) for Phase 1 Part 1

Has been reviewed, certified and verified by

The following EM&A members

 

 

 

 

 

Certified by:                                                                                           

                                           Roger Leung

                                           Environmental Team (ET) Leader

                                           Mott Connell Ltd.

 

 

Date                                   14 February 2008

 

 

 

 

 

Verified by:                                                                                             

                                           Adi Lee

                               Independent Environmental Checker (IEC)

                              Hyder Consulting Limited

 

 

 

Date                                   14 February 2008

List of Contents                                                                                          Page

EXECUTIVE SUMMARY                                                                                                           iii

1.           INTRODUCTION                                                                                                      1-1

1.1          Background to the Project............................................................................... 1-1

1.2          Coverage of this EM&A Report...................................................................... 1-1

1.3          Project Management Organisation................................................................... 1-1

1.4          Project Program............................................................................................. 1-2

1.5          Works Undertaken in the Reporting Month....................................................... 1-2

2.           EM&A Requirements                                                                                         2-1

2.1          Summary of EM&A Requirements.................................................................. 2-1

2.2          Environmental Quality Performance Limits....................................................... 2-2

2.3          Event Action Plan........................................................................................... 2-2

2.4          Implementation of Environmental Mitigation Measures...................................... 2-2

3.           Monitoring Results                                                                                        3-1

3.1          Impact Monitoring Schedule............................................................................ 3-1

3.2          Monitoring Methodology.................................................................................. 3-1

3.3          Monitoring Equipment..................................................................................... 3-4

3.4          Equipment Calibration..................................................................................... 3-5

3.5          Results of Impact Monitoring........................................................................... 3-5

4.           Project Environmental Status                                                                4-1

4.1          Environmental Meetings.................................................................................. 4-1

4.2          Status of Environmental Submissions, Permits and Licenses.............................. 4-1

4.3          Waste Management Status.............................................................................. 4-1

4.4          Review of Environmental Monitoring Procedures.............................................. 4-2

4.5          Implementation Status of Environmental Mitigation Measures............................ 4-2

5.           Environmental COMPLIANTS AND NON-COMPLIANCE                             5-1

5.1          Summary of Environmental Complaints, Notifications of Summons and Successful Prosecutions   5-1

5.2          Environmental Enquires................................................................................... 5-1

5.3          Environmental Events..................................................................................... 5-1

5.4          Environmental Exceedance/ Non-compliance................................................... 5-1

6.           future key issues                                                                                             6-1

6.1          Key Issues and Recommendations for Coming Month....................................... 6-1

7.           conclusion and recommendation                                                            7-1

7.1          Conclusions.................................................................................................... 7-1

7.2          Recommendations.......................................................................................... 7-1

 

List of Appendices

Appendix A.......... Environmental Quality Performance Limits

Appendix B.......... Event and Action Plans

Appendix C.......... Schedule of Mitigation Measures from the EIA/ EM&A Manual

Appendix D.......... EM&A Schedule

Appendix E.......... Air Quality Monitoring Results and Graphical Presentation

Appendix F.......... Noise Monitoring Results and Graphical Presentation

 

List of Tables

Table 2‑1............ Summary of Impact EM&A Requirements.................................................. 2-1

Table 3‑1............ TSP Monitoring Equipment.......................................................................... 3-4

Table 3‑2............ Air-borne Asbestos Fibre Monitoring Equipment......................................... 3-4

Table 3‑3............ Noise Monitoring Equipment........................................................................ 3-4

Table 3‑4............ Equipment Calibration Frequencies............................................................ 3-5

Table 3‑5............ Results of 1-Hour TSP Impact Monitoring................................................... 3-5

Table 3‑6............ Results of 24-Hour TSP Impact Monitoring................................................. 3-5

Table 3‑7............ Result of Noise Monitoring........................................................................... 3-6

Table 3‑8............ Monthly Summary Waste Flow Table for 2008........................................... 3-7

Table 4‑1............ Status of Environmental Submissions, Permits and Licenses.................. 4-1

Table 5‑1............ Summary of Environmental Complaints and Prosecutions........................ 5-1

Table 5‑2............ Summary of Exceedances.......................................................................... 5-2

Table 5‑3............ Summary of Environmental Site Inspections.............................................. 5-2

Table B‑1............ Event/Action Plan for Air Quality................................................................. B-1

Table B‑2............ Event/Action Plan for Noise Impact............................................................ B-2

Table C‑3........... Implementation Schedule of Recommended Mitigation Measures............ C-1

Table C-4........... Implementation Schedule of Recommended Mitigation Measures............ C-4

Table C‑5........... Event Contingency Plan for Environmental Complaints.......................... C-15

 

List of Figures

Figure 1.1........... Layout Plan of Work Site and Neighbouring Sensitive Receivers

Figure 1.2........... Project Organisation Chart

Figure 2.1........... Location of Dust Monitoring Stations

Figure 2.2........... Location of Airborne Asbestos Fibre Monitoring Stations

Figure 2.3........... Location of Noise Monitoring Stations

EXECUTIVE SUMMARY

The EM&A programme for this Project commenced on 28 Sep 2007. This report presents a summary of the environmental monitoring and audit results, list of activities, and mitigation measures implemented during the reporting month of January 2008.

This is the 4th Monthly EM&A Report for works carried out during the reporting month of Jan 2008.

The following construction activities have taken place during the reporting month: -

·       Fitting out at RE site office;

·       Hoarding erection works;

·       Repairing of the cracked/damaged existing concrete ground slab;

·       Bamboo scaffolding erection works around Lairage Block; and

·       General site clearance works.

There have been no removal works for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) carried out during the reporting month.

Throughout the reporting month, hoarding erection works continued and hence regular dust and noise monitoring were conducted. As no asbestos abatement has been carried out on-site, no airborne fibre monitoring has been conducted. In general, the Contractor is preparing to implement the required mitigation measures and has been reasonably responsive to the ET’s recommendations on discrepancies observed during the environmental site inspection of this reporting month.

No environmental complaint, notification of summons and prosecution was received or made against the Project in the reporting month.

Site inspection was carried out on a weekly basis to monitor proper implementation of environmental pollution control and mitigation measures for the Project. In this reporting month, site inspections were carried out on 2, 9, 14, 23 and 30 Jan 2008.

No non-compliances with regard to site environmental audits were recorded in this reporting month.

Repairing of the documented cracked/damaged existing concrete ground slab was conducted and completed during the reporting month following the site inspection by EPD on 17 Dec 2007.

Future key activities envisaged in the coming month include: -

·       Steel hoarding erection works;

·       Scaffolding erection works;

·       General site clearance;

·       Covered walkway erection works; and

·       Baseline monitoring for airborne asbestos fibre.

1.                      INTRODUCTION

1.1                   Background to the Project

1.1.1              This Project – “Demolition of Buildings and Structures in the Proposed Kennedy Town Comprehensive Development Area Site” is a Designated Project defined under the EIA Ordinance. An Environmental Permit (“EP”) was issued on 22 May 2002 [Permit No. EP-136/2002] and was subsequently varied. The latest EP [Permit No. EP-136/2002/B] in force was granted on 18 Oct 2007.

1.1.2              This Contract [No.: CV/2007/05] for Phase 1 Part 1 of the Project was awarded to the Contractor - Hang Kee Construction & Engineering Co. Ltd. and contractually commenced on 28 September 2007.  The main Contract will last for 18 months.  In accordance with Condition 1.12 of the Environmental Permit EP-136/2002/B, the Director of Environmental Protection (“DEP”) was notified that the commencement date of Phase 1 Part 1 of the Project was 12 October 2007 within the context of the Environmental Permit.

1.1.3              The scope of Phase 1 Part 1 of the Project includes demolition and clearance of all existing chimneys, buildings and ancillary structures above the existing concrete ground slab where the former Kennedy Town Incinerator Plant (“KTIP”) and the Kennedy Town Abattoir (“KTA”) are located, and the demolition and clearance of existing piers at the waterfront adjacent to the KTIP and KTA. It also includes the removal of asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) prior to demolition of structures and final capping of the underground facilities with clean soil and concrete cover of not less than 130mm thick as required in EP Condition 2.5(e).

1.1.4              A layout plan of the Project site and locations for nearby sensitive receivers is given in Figure 1.1.

1.1.5              Mott Connell Limited (MCL) has been commissioned by the Project Proponent – Civil Engineering and Development Department (“CEDD”) as the Environmental Team (“ET”) to undertake the Environmental Monitoring and Audit (EM&A) programme described in the approved EM&A Manual and the subsequent Updated EM&A Manual for Phase 1 Part 1 of the Project.

1.2                   Coverage of this EM&A Report

1.2.1              The EM&A programme for this Project commenced on 28 Sep 2007. This report presents a summary of the environmental monitoring and audit results, list of activities, and mitigation measures implemented during the reporting month of January 2008.

1.2.2              This is the 4th Monthly EM&A Report for works carried out during the reporting month.

1.3                   Project Management Organisation

1.3.1              The project organisation chart is presented in Figure 1.2.

1.4                   Project Program

1.4.1              This Contract for Phase 1 Part 1 of the Project contractually commenced on 28 September 2007.  The main Contract will last for 18 months.  

1.5                   Works Undertaken in the Reporting Month

1.5.1              The following construction activities have taken place during the reporting month: -

·         Steel hoarding erection works;

·         Scaffolding erection works;

·         General site clearance;

·         Covered walkway erection works; and

·         Baseline monitoring for airborne asbestos fibre.

1.5.2              No removal works for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) have been carried out.

 

 

Figure 1.1         Layout Plan of Work Site and Neighbouring Sensitive Receivers

Figure 1.2         Project Organisation Chart

2.                      EM&A Requirements

2.1                   Summary of EM&A Requirements

2.1.1              The EM&A programme requires environmental monitoring for air quality, noise, water quality and waste management as specified in the Updated EM&A Manual dated Dec 2007.

2.1.2              1-hour TSP and 24-hour TSP levels at 2 dust monitoring stations and airborne asbestos fibre at 3 fibre monitoring stations are to be monitored during the course of dusty and asbestos abatement work in every reporting month. These air quality monitoring stations for 24-hour TSP and 1-hour TSP measurements and airborne fibre are shown in Figure 2.1 and Figure 2.2.

2.1.3              Noise levels at 3 designated monitoring stations are to be monitored during the course of noisy work in every reporting month. These noise monitoring stations are shown in Figure 2.3. A summary of impact EM&A requirements is presented in Table 2‑1 below.

Table 2‑1          Summary of Impact EM&A Requirements

Parameters

Descriptions

Locations

Frequencies

Duration

Air Quality

24-Hour TSP

2 Locations – A1  & A2a

Once every 6 days

During dust generating construction works

1-Hour TSP

2 Locations – A1 & A2a

3 times every 6 days

During dust generating construction works

Airborne Asbestos Fibre

3 Locations – AF1, AF2 and AF3

Daily

During asbestos abatement works

Noise

Leq (30 min), L10, L90,

3 Designations

Once per week

During Construction

Waste

On-Site Waste Audit

Active Work Sites

Weekly

During Construction

On-Site Waste Inspection

Wastewater

On-Site

audit of surface runoff and trade effluent disposal

Active Work Sites

Weekly

During Construction

General Site Conditions

Environmental Site Inspection

Works areas and areas affected by works

Weekly

During Construction

N.B.

A1, AF1, N1   – East of Kennedy Town Abattoir at ground level

A2a, AF2        – Near Sai See Street at ground level

AF3                 – Kennedy Town Incineration Plant at ground level

N2                    – Southeast of Kennedy Town Abattoir at ground level

N3                    – West of Kennedy Town Abattoir at ground level

2.2                   Environmental Quality Performance Limits

2.2.1              Environmental Quality Performance Limits for air quality and noise are shown in Appendix A.

2.3                   Event Action Plan

2.3.1              The Event/ Action Plans for air quality and noise are shown in Appendix B.

2.4                   Implementation of Environmental Mitigation Measures

2.4.1              The Contractor is required to implement mitigation measures listed in the latest EP, EIA Report and Updated EM&A Manual. During routine site inspections, the Contractor's implementation of mitigation measures are to be inspected and reviewed.  A schedule of the implementation of mitigation measures identified at the EIA stage is given in Appendix C.

 

Figure 2.1         Location of Dust Monitoring Stations

Figure 2.2         Location of Airborne Asbestos Fibre Monitoring Stations

Figure 2.3         Location of Noise Monitoring Stations

3.                      Monitoring Results

3.1                   Impact Monitoring Schedule

3.1.1              Regular site inspections were carried out on 2, 9, 14, 23 and 30 Jan 2008 in this reporting month to assess the compliance with environmental requirements. The EM&A schedule is given in Appendix D.

3.1.2              During this reporting month, hoarding erection works and air quality and noise monitoring continued.

3.2                   Monitoring Methodology

24-hour TSP Monitoring

Installation

3.2.1              The HVS has been installed close to representative air sensitive receivers.  The following criteria have been considered in the installation of the HVS.

·          A horizontal platform with appropriate support to secure the sampler against gusty wind was provided.

·          The distance between the HVS and any obstacles, such as buildings, was at least twice the height that the obstacle protrudes above the HVS.

·          A minimum of 2m separation from walls, parapets and penthouse was required for rooftop sampler.

·          No furnace or incinerator flues were nearby.

·          Airflow around the sampler was unrestricted.

·          Permission was obtained to set up the samplers and to obtain access to the monitoring stations.

·          A secured supply of electricity is needed to operate the samplers.

Preparation of Filter Papers

·         Glass fibre filters, G810 are to be labelled with sufficient filters that are clean and without pinholes.

·         All filters are to be equilibrated in the conditioning environment for 24 hours before weighing. The conditioning environment temperature is to be around 25 °C and not variable by more than ±3°C, the relative humidity (RH) is to be < 50% and not variable by more than ±5 %.  A convenient working RH is 40%.

Field Monitoring

·         The power supply is to be secured to ensure the HVS works properly.

·         The filter holder and the area surrounding the filter are to be cleaned.

·         The filter holder is to be removed by loosening the 4 bolts and a new filter, with stamped number upward, on a supporting screen to be aligned carefully.

·         The filter is to be properly aligned on the screen so that the gasket forms an airtight seal on the outer edges of the filter.

·         The swing bolts are to be fastened to hold the filter holder down to the frame.  The pressure applied is to sufficient to avoid air leakage at the edges.

·         The shelter lid is then closed and is secured with the aluminium strip.

·         The HVS shall be warmed-up for about 5 minutes to establish run-temperature conditions.

·         A new flow rate record sheet is to be set into the flow recorder.

·         The flow rate of the HVS is to be checked and adjusted at around 1.1 m3/min.  The range specified in the updated EM&A Manual is between 0.6-1.7 m3/min.

·         The programmable timer is set for a sampling period of 24 hrs + 1 hr, and the starting time, weather condition and the filter number are to be recorded.

·         The initial elapsed time is to be recorded.

·         At the end of sampling, the sampled filter is to be removed carefully and folded in half length so that only surfaces with collected particulate matter are in contact.

·         It was then placed in a clean plastic envelope and sealed.

·         All monitoring information is to be recorded on a standard data sheet.

·         Filters are to be sent to a HOKLAS accredited laboratory for analysis.

Maintenance and Calibration

·         The HVS and its accessories are to be maintained in good working condition, such as replacing motor brushes routinely and checking electrical wiring to ensure a continuous power supply.

·         HVSs are to be calibrated at a bi-monthly intervals using GMW-25 Calibration Kit throughout all stages of the air quality monitoring.

1-hour TSP Monitoring

Field Monitoring

3.2.2              The measuring procedures of the 1-hour dust meter are to be in accordance with the Manufacturer’s Instruction Manual as follows:

·         Set POWER to “ON”, push BATTERY button, make sure that the meter’s indicator is in the range with a red line and allow the instrument to stand for about 3 minutes (Then, the air sampling inlet has been capped).

·         Push the knob at MEASURE position.

·         Push “O-ADJ” button. (Then meter’s indication is 0).

·         Push the knob at SENSI ADJ position and set the meter’s indication to S value described on the Test Report using the trimmer for SENSI ADJ.

·         Pull out the knob and return it to MEASURE position.

·         Push “START” button.

Maintenance and Calibration

·         The 1-hour TSP meter would be checked at 3-month intervals and calibrated at 1-year intervals throughout all stages of the air quality baseline monitoring.

Airborne Asbestos Fibre Monitoring

3.2.3              All airborne sampling procedures and specification shall comply with EH10 guidance note and MDHS 39/3 (HSE UK). All air test results and log sheets prepared by the Contractor shall be submitted to ET Leader for reporting purpose.

3.2.4              Air measurement of a minimum of 480 L shall be taken after commencement of abatement work. Results must be below 0.01 fibre/ ml.

3.2.5              However, no asbestos fibre monitoring was carried out because of absence of asbestos abatement activities.

Noise Monitoring

Field Monitoring

·         The Sound Level Meter is to be set on a tripod at a height of 1.2 m above the ground.

·         Facade measurements are to be made at all 3 monitoring locations.

·         The battery condition is to be checked to ensure the correct functioning of the meter.

·         Parameters such as frequency weighting, the time weighting and the measurement time are to be set as follows:

o        Frequency weighting: A

o        Time weighting: Fast

o        Time measurement: Three 30 minutes intervals (between 07:00 and 19:00 on normal weekdays) / Three 15 minutes intervals (average 3 consecutives Leq (5min)) (between 0700-1900 hrs on general holidays)

·         Prior to and after each noise measurement, the meter is to be calibrated using a Calibrator for 94 dB at 1000 Hz.  If the difference in the calibration level before and after measurement is more than 1 dB, the measurement would be considered invalid and repeat of noise measurement would be required after re-calibration or repair of the equipment.

·         During the monitoring period, the Leq, L10 and L90 would be recorded.  In addition, site conditions and noise sources are to be recorded on a standard record sheet.

·         Noise measurement should be paused during periods of high intrusive noise (e.g. dog barking, helicopter noise) if possible. Observations should be recorded when intrusive noise is unavoidable.

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

Maintenance and Calibration

·         The microphone head of the sound level meter and calibrator is to be cleaned with soft cloth at quarterly intervals.

·         The meter and calibrator are sent to the supplier or HOKLAS laboratory to check and calibrate at yearly intervals.

3.3                   Monitoring Equipment

Air Quality (Dust)

3.3.1              The equipment used for air quality (dust) monitoring is listed in Table 3‑1.

Table 3‑1          TSP Monitoring Equipment

Equipment

Model

HVS Sampler

GMWS 2310 Accu-vol system

Calibrator

GMW 25

1-hour TSP Dust Meter

8520 Dust Track Aerosol Monitor

 

Air Quality (Airborne Asbestos Fibre)

3.3.2              To be confirmed by the Contractor undertaking the airborne asbestos fibre monitoring.

Table 3‑2          Air-borne Asbestos Fibre Monitoring Equipment

Equipment

Model

To be confirmed

To be confirmed

 

Noise

3.3.3              The equipment used for noise monitoring is listed in Table 3‑3.

Table 3‑3          Noise Monitoring Equipment

 Equipment

Model

Integrating Sound Level Meter

Rion NL-31

Calibrator

Rion NC-73

 

3.4                   Equipment Calibration

3.4.1              The calibration frequencies of the monitoring equipment are provided in Table 3‑4.

Table 3‑4          Equipment Calibration Frequencies

Equipment

Calibration Frequency

Last Calibration Date

High Volume Sampler

GMWS 2310 Accu-vol system

Every two months

23 Dec 2007 (A1)

21 Dec 2007 (A2a)

1-hour TSP Dust Meter

8520 Dust Track Aerosol Monitor

Every year

28 Sep 2007

Integrated SLM

Rion NL-31

Every year

29 March 2007

Sound level calibrator

Rion NC-73

Every year

25 June 2007

3.5                   Results of Impact Monitoring

Air Quality (1-hr TSP)

3.5.1              Results of 1-hour TSP level are summarised in Table 3‑5.  Detailed results, including weather conditions, and graphical presentations are included in Appendix E.

Table 3‑5          Results of 1-Hour TSP Impact Monitoring

Monitoring Station

1-hour TSP Range (µg/m3)

Action Level (µg/m3)

Limit Level (µg/m3)

A1

119 – 249

369.1

500

A2a

78 – 209

357.3

500

3.5.2              No exceedance of Action / Limit Levels for 1-hr TSP was recorded in the reporting month.

Air Quality (24-hr TSP)

3.5.3              Results of 24-hour TSP level are summarised in Table 3‑6.  Detailed results, including weather conditions, and graphical presentations are included in Appendix E.

Table 3‑6          Results of 24-Hour TSP Impact Monitoring

Monitoring Station

1-hour TSP Range (µg/m3)

Action Level (µg/m3)

Limit Level (µg/m3)

A1

74.7 – 93.3

180.4

260

A2a

65.6 – 81.5

177.8

260

3.5.4              No exceedance of Action / Limit Levels for 24-hr TSP was recorded in the reporting month.

 

 

Noise

3.5.5              Results of measured noise level, in terms of Leq (30min), during construction are summarised in Table 3‑7.  Detailed results, including weather conditions, and graphical presentations are presented in Appendix F.

Table 3‑7          Result of Noise Monitoring

Monitoring Station

Measured Leq(30 min) Range, dB(A)

Limit Level, dB(A)

Leq (30min) (0700 – 1900 hours on normal weekdays)

N1

69.5 – 71.8

75

N2

66.6 – 69.2

75

N3

70.1 – 76.5

75

3.5.6              During the reporting month, one exceedance of the construction noise limit level was recorded at N3 on 8 Jan 2008 up to a level of 76.5 dB(A) [Leq 30min]. The ET has issued an exceedance notification on 16 Jan 2008. However, exceedance of the limit level was caused by non-project related high breaker noise from road works at Sai Ning Street by others. No actions have been recommended as the exceedance was not project related.

 

 

 

 

Waste Management

Table 3‑8          Monthly Summary Waste Flow Table for 2008

Month

Actual Quantities of Inert C&D Materials Generated Monthly

Actual Quantities of C&D Wastes Generated Monthly

Total Quantity Generated

Broken Concrete

Reused in the Contract

Reused in other Projects

Disposed of at Public Fill

Metals

Paper/ Cardboard

Plastics

Chemical waste

Others (e.g. refuse)

(In tons)

(In tons)

(In tons)

(In tons)

(In tons)

(In ‘000 kg)

(In ‘000 kg)

(In ‘000 kg)

(In ‘000 kg)

(In tons)

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Est.

Act.

Jan

0.25

0

0

0

0

0

0

0

0.25

0

1

0

0.1

0

0.1

0

0.1

0

0.25

0.012

Feb

0.25

 

0

 

0

 

0

 

0.25

 

1

 

0.1

 

0.1

 

1

 

0.25

 

Mar

0.25

 

0

 

0

 

0

 

0.25

 

1

 

0.1

 

0.1

 

10

 

0.25

 

Apr

3.75

 

0

 

0

 

0

 

3.75

 

50

 

0.1

 

0.1

 

20

 

0.25

 

May

3.75

 

0

 

0

 

0

 

3.75

 

50

 

0.1

 

0.1

 

20

 

0.25

 

June

3.75

 

0

 

0

 

0

 

3.75

 

50

 

0.1

 

0.1

 

25

 

0.25

 

Sub-total

12

 

0

 

0

 

0

 

12

 

153

 

0.6

 

0.6

 

76.1

 

1.5

 

Jul

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

25

 

0.25

 

Aug

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

25

 

0.25

 

Sep

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

15

 

0.25

 

Oct

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

15

 

0.25

 

Nov

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

15

 

0.25

 

Dec

5

 

0

 

0

 

0

 

5

 

90

 

0.1

 

0.1

 

0.1

 

0.25

 

Total

42

 

0

 

0

 

0

 

42

 

693

 

1.2

 

1.2

 

171.2

 

3

 

4.                      Project Environmental Status

4.1                   Environmental Meetings

4.1.1              One environmental meeting was held on the day of the monthly site inspection on 14 Jan 2008.  Another meeting was held with EPD to discuss the way forward for submission and approval of waste management plan.

4.2                   Status of Environmental Submissions, Permits and Licenses

4.2.1              A summary of status of all environmental submissions, permits, licenses, and/or notifications to EPD for this Project during the reporting period is presented in Table 4‑1 below.

Table 4‑1          Status of Environmental Submissions, Permits and Licenses

Item

Description

Date of Application

Status

1.

Environmental Permit (EP No. EP-136/2002/B)

27 Sep 2007

Valid

2.

Billing Account under Waste Disposal (charges for Disposal of Construction Waste) Regulation (a/c no.: 7006217)

Approved on

31 Oct 2007

Valid

3.

Waste Management Plan

v1.1 on 9 Nov 2007

v2.0 on 4 Dec 2007

v3.0 on 17 Jan 2008

Pending approval.

4.

Environmental Management Plan

29 Oct 2007

RE provided comments on 9 Nov 2007. Revised version under preparation by Contractor.

5.

Registration as a Chemical Waste Producer under Waste Disposal (Chemical Waste) (General) Regulation (ref. no.: WPN5213-111-H2999-02)

23 Oct 2007

Approved on 6 Nov 2007

Valid

6.

Effluent Discharge Licence under Water Pollution Control Ordinance

27 Oct 2007

EPD replied on 22 Jan 2008. Awaiting Contractor’s response.

New submissions

 

None in the reporting month

 

 

4.3                   Waste Management Status

4.3.1              Inert C&D materials and non-inert C&D wastes were generated by the Project in the reporting month are as shown Table 3‑8. A trip ticket system has been implemented for all off-site waste disposals.

4.4                   Review of Environmental Monitoring Procedures

4.4.1              The monitoring works conducted by the Environmental Team have been reviewed. No changes in the environmental monitoring procedures are considered necessary at this stage.

4.5                   Implementation Status of Environmental Mitigation Measures

4.5.1              An Implementation Schedule of Mitigation Measures from the EIA/ Updated EM&A Manual has been given in Appendix C.

4.5.2              During this reporting month, there has not been major progress that warrants the implementation of the listed mitigation measures.

5.                      Environmental COMPLIANTS AND NON-COMPLIANCE

5.1                   Summary of Environmental Complaints, Notifications of Summons and Successful Prosecutions

5.1.1              No environmental complaints have been received during the reporting month. Appendix B presents the environmental complaint event contingency plan of the Project and Table 5‑1 below presents a statistics of complaints, notification of summons and successful prosecution since the commencement of the Project.

Table 5‑1          Summary of Environmental Complaints and Prosecutions

Complaints Logged

Summons Served

Successful Prosecutions

Jan 2008

Cumulative

Jan 2008

Cumulative

Jan 2008

Cumulative

0

0

0

0

0

0

5.1.2              No environmental complaint, notification of summons and prosecution has been received or made against the Project in this reporting month.

5.2                   Environmental Enquires

5.2.1              No environmental enquiries were received during the reporting month.

5.3                   Environmental Events

5.3.1              No unusual events were recorded during the reporting month.

5.4                   Environmental Exceedance/ Non-compliance

5.4.1              The Event and Action Plans for air quality and noise are presented in Appendix B.

Air Quality - Dust

5.4.2              No exceedance of the Action and Limit Levels for 1-hour and 24-hour TSP was recorded.

Air Quality – Airborne Asbestos Fibre

5.4.3              Not applicable. No airborne asbestos fibre monitoring was undertaken during this reporting month as no asbestos abatement works were carried out.

Noise Impact

5.4.4              One exceedance of the Limit Level was recorded. However, exceedance of the limit level was caused by non-project related high breaker noise from road works at Sai Ning Street by others. No actions have been recommended as the exceedance was not project related.

Wastewater

5.4.5              No surface runoff observed due to the dry weather and no discharge of trade effluent observed. Contractor is proposing modification of existing draining system to control surface runoff during demolition and abatement works to satisfy the requirements of WPCO. Site specific measures other than the generic ones mentioned in Table C-4 will be presented and reviewed once available.

Waste Management

5.4.6              Not applicable.

Summary of Exceedances

5.4.7              Table 5‑2 summarises the total number of exceedances for air quality and noise monitoring recorded during the reporting period.

Table 5‑2          Summary of Exceedances

Parameters

Total no. of Measurements

Action Level Exceedance

% of Action Level Exceedance

Limit Level Exceedance

% of Limit Level Exceedance

Air Quality

48

0

0%

0

0%

Noise

15

N/A

N/A

1

16%

Note:  'N/A' – Not applicable. Action level for noise relates to the number of documented complaints received

5.4.8              No valid exceedance was recorded in the reporting period.

Site Environmental Audit

5.4.9              Site inspection is to be carried out on a weekly basis to monitor proper implementation of environmental pollution control and mitigation measures for the Project. In this reporting month, one monthly site inspection was carried out jointly by the Contractor, ET and IEC on 14 Jan 2008 and weekly site inspections were carried out by the Contractor and ET on 2, 9, 23 and 30 Jan 2008.

5.4.10           Major findings provided by ET and those jointly provided by the ET and IEC on 14 Jan 2008 from the site inspections are summarised in Table 5‑3 below.

Table 5‑3          Summary of Environmental Site Inspections

Date of Inspection

Major Observations

Action(s)

2 January 2008

Some loose rubbish was observed. The Contractor was reminded to ensure that no items of rubbish enter the adjacent open water.

The loose rubbish items were cleared.

 

A used generator filter was observed in a drip tray. This should be removed and disposed of properly.

A used generator filter in a drip tray was removed and disposed.

 

9 January 2008

Some additional general refuse was observed next to a covered stockpile. The Contractor was reminded to properly dispose of all general refuse from the site.

Disposal of general refuse pending approval of trip ticket system.

14 January 2008

Some oil was found leaked outside a drip tray for a generator. The Contractor was reminded to clear and dispose of the spilled oil as soon as possible.

Leaked oil from a drip tray for generator was cleared and disposed of.

 

Some fuel was found spilled outside a drip tray for a fuel drum. The Contractor was reminded to remove the spilled fuel and take appropriate measures to prevent further recurrence.

Spilled fuel from a drip tray of a fuel drum was removed. Also, the pump connected to the fuel drum was placed back in the drum.

23 January 2008

The amount of water in the trough inside the disused oil tank room had decreased compared to last week. This may be due to recent dry weather.

Keep in view. (No actions required)

30 January 2008

Drip trays provided for fuel cans are to be cleared regularly to prevent accumulation of rain water.

Drip trays were cleared of rain water. These, along with the fuel drums, were also covered with tarpaulin.

 

The amount of water in disused oil tank inside incineration plant has increased slightly. Some rain water was considered to have entered from a hole on the roof.

No actions required.

5.4.11           There are no non-compliances in this reporting month.

Conditions of Identified Surface Cracks

5.4.12           In accordance with EP Conditions 2.5 (e), inspection findings and repair works carried out should be reported in the monthly EM&A Report.

5.4.13           To date, the repair works have just been completed and the Contractor are currently taking photo records of the repaired cracks for documentation in the next monthly EM&A Report. Once the documentation is completed, it shall become the baseline condition to be compared for any deterioration in each subsequent site inspection to be reported in every coming monthly EM&A Reports.

 

6.                      future key issues

6.1                   Key Issues and Recommendations for Coming Month

6.1.1              Key activities to be considered in the coming month include: -

1.       Steel hoarding erection works;

2.       Scaffolding erection works;

3.       General site clearance;

4.       Covered walkway erection works; and

5.       Baseline monitoring for asbestos;

6.       Conditions of the repaired cracks.

 

7.                      conclusion and recommendation

7.1                   Conclusions

7.1.1              EM&A was performed in January 2008. All monitoring and audit results in the reporting month were checked and reviewed.

7.1.2              Dust and noise monitoring were conducted during the reporting month due to continuation of hoarding erection works. One exceedance of the construction noise Limit Level was recorded, but this is not considered to be project related. No exceedances of the Action and Limit Levels for dust were recorded. Furthermore, as no asbestos abatement activities were carried out in the reporting month, no airborne fibre monitoring has been conducted.

7.1.3              In general, the Contractor is preparing to implement required mitigation measures and has been reasonably responsive to the ET’s recommendations on discrepancies observed during environmental site inspections of this reporting month.

7.1.4              No environmental complaints, notification summons or successful prosecutions have been received or made against this Project in this reporting month.

7.2                   Recommendations

7.2.1              No recommendations made at this stage pending more site progress achieved.

Appendix A  Environmental Quality Performance Limits


Action and Limit Levels for 24-hour TSP

 

Monitoring Station

Action Level (mg/m3)

Limit Level (mg/m3)

A1

180.4

260

A2a

177.8

260

 

Action and Limit Levels for 1-hour TSP

 

Monitoring Station

Action Level (mg/m3)

Limit Level (mg/m3)

A1

369.1

500

A2a

357.3

500

 

Action and Limit Levels (Leq) for Construction Noise

 

Time Period

Action Level

Limit Level (dB(A)),

Leq (30min)

N1

N2

N3

0700 – 1900 hours on normal weekdays

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

75

75

75

0700 – 2300 hours on public holidays including Sundays and

1900 – 2300 hours on all days

 

Subject to requirements stipulated in future Construction Noise Permits

2300 – 0700 on all days

Appendix B  Event and Action Plans

Table B‑1         Event/Action Plan for Air Quality

EVENT

ACTION

ET

IEC

ER

CONTRACTOR

ACTION LEVEL

1. Exceedance for one sample

 

1. Identify source

2. Inform IEC and ER

3. Repeat measurement to confirm finding

4. Increase monitoring frequency to daily

1. Check monitoring data submitted by ET

2. Check Contractor’s working method

 

1. Notify Contractor

2. Check monitoring data and Contractor's working methods     

1. Rectify any unacceptable practice

2. Amend working methods if appropriate

 

2. Exceedance for two or more consecutive samples

1. Identify source

2. Inform IEC and ER

3. Repeat measurements to confirm findings

4. Increase monitoring frequency to daily

5. Discuss with Contractor , IEC and ER for remedial actions required

6. If exceedance continues, arrange meeting with IEC and ER

7. If exceedance stops, cease additional monitoring

1. Checking monitoring data submitted by ET

2. Check Contractor’s working method

3. Discuss with ET and Contractor on possible remedial measures

4. Advise the ER on the effectiveness of the proposed remedial measures

5. Supervise implementation of remedial measures

 

1. Confirm receipt of notification of failure in writing

2. Notify Contractor

3. Check monitoring data and Contractor's working methods

4. Discuss with IEC and Contractor on potential remedial actions

5. Ensure remedial actions properly implemented

1. Submit proposals for remedial actions to ER within 3 working days of notification

2. Implement the agreed proposals

3. Amend proposal if appropriate

LIMIT LEVEL

 

1. Exceedance for one sample

 

1. Identify source

2. Inform ER and EPD

3. Repeat measurement to confirm finding

4. Increase monitoring frequency to daily

5. Assess effectiveness of Contractor's remedial actions and keep IEC, EPD and ER informed of the results

1. Checking monitoring data submitted by ET

2. Check Contractor’s working method

3. Discuss with ET and Contractor on possible remedial measures

4. Advise the ER on the effectiveness of the proposed remedial measures

5. Supervisor implementation of remedial measures

1. Confirm receipt of notification of failure in writing

2. Notify Contractor

3. Check monitoring data and Contractor's working methods

4. Discuss with ET Leader and Contractor potential remedial actions

5. Ensure remedial actions properly implemented

1. Take immediate action to avoid further exceedance

2. Submit proposals for remedial actions to ER within 3 working days of notification

3. Implement the agreed proposals

4. Amend proposal if appropriate

 

2. Exceedance for two or more consecutive samples

1. Identify source

2. Inform IEC, ER and EPD the causes & actions taken for the exceedances

3. Repeat measurement to confirm findings

4. Increase monitoring frequency to daily

5. Investigate the causes of exceedance, Contractor’s working procedures to identify possible mitigation

6. Arrange meeting with IEC and ER to discuss the remedial actions to be taken

7. Assess effectiveness of Contractor's remedial actions and keep IEC, EPD and ER informed of the results

8. If exceedance stops, cease additional monitoring

1. Discuss amongst ER, ET and Contractor as the potential remedial actions

2. Review Contractor’s remedial actions whenever necessary to ensure their effectiveness and advise the ER accordingly

3  Supervise the implementation of remedial measures

 

 

 

1. Confirm receipt of notification of failure in writing

2. Notify Contractor

3. Carry out analysis of Contractor's working procedures with IEC to determine possible mitigation to be implemented

4. Discuss amongst Environmental Team Leader and the Contractor potential remedial actions

5. Review Contractor's remedial actions whenever necessary to assure their effectiveness

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

1. Take immediate action to avoid further exceedance

2. Submit proposals for remedial actions to ER within 3 working days of notification

3. Implement the agreed proposals

4. Resubmit proposals if problem still not under control

5. Stop the relevant portion of works as determined by the ER until the exceedance is abated

 

Table B‑2         Event/Action Plan for Noise Impact

EVENT

ACTION

ET

IEC

ER

CONTRACTOR

Action Level is reached

1.     Inform IEC and ER

2.     Carry out investigation

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

4.     Discuss with the Contractor and formulate remedial measures

1.        Discuss amongst ER, ET and Contractor on the potential remedial actions

2.        Review Contractor's remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly

3.        Supervise the implementation of remedial measures

1.     Confirm receipt of notification of failure in writing

2.     Notify Contractor

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

4.     Ensure remedial measures are properly implemented

 

1.     Submit noise mitigation proposal to IEC

2.     Implement noise mitigation proposals

Limit Level is reached

 

1.     Inform IEC, ER, EPD and Contractor

2.     Identify source

3.     Repeat measurement to confirm findings

4.     Carry out analysis of Contractor's working procedures to determine possible mitigation to be implemented

5.     Inform IEC, ER and EPD the causes & actions taken for the exceedances

6.     Assess effectiveness of Contractor's remedial actions and keep IEC, EPD and ER informed of the results

7.     If exceedance stops cease additional monitoring

1.     Discuss amongst ER, ET and Contractor on the potential remedial actions

2.     Review Contractor's remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly

3.     Supervise the implementation of remedial measures

1.     Confirm receipt of notification of failure in writing

2.     Notify Contractor

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

4.     Ensure remedial measures are properly implemented

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

1.     Take immediate action to avoid further exceedance

2.     Submit proposals for remedial actions to IEC within 3 working days of notification

3.     Implement the agreed proposals

4.     Resubmit proposals if problem still not under control

5.     Stop the relevant portion of works as determined by the ER until the exceedance is abated

Appendix C  Schedule of Mitigation Measures from the EIA/ EM&A Manual

Table C‑3         Implementation Schedule of Recommended Mitigation Measures

No.

Activity

Mitigation/ EIA Recommendations

Responsibility for Implementation

Location

Duration completion

Of measures

Implementation Stage

Relevant Guidelines Legislation

1

Ash Disposal

 

 

 

 

 

I

Treatment

The ash deposits are mainly contaminated by dioxins and furans and mixed with asbestos containing materials. Handling, transportation and disposal of the ash waste in line with relevant regulations. Collection, immobilisation and testing of waste for disposal to landfill shall be carried out according to the relevant regulations and recommendations of the EIA including immobilisation by collection and mixing the ash material with cement.  Pilot mixing and TCLP tests should establish the ratio of cement to ash to the satisfaction of EPD.  Ash waste to be treated and placed into steel drums lined with plastic sheeting.  The drums should be adequately sealed and in new or good condition.  Prior agreement of the disposal criteria from EPD and agreement to disposal from the landfill operator must be obtained.

As an additional measure, release of contaminants from disturbed ash should be minimised prior to gathering up the ash materials and amended water containing a wetting agent should be sprayed on the ash.  The wetting agent will assist in water penetration to thoroughly soak the ash and ensure dust levels are reduced without using excessive water. The use of amended water for dust suppression will minimise the use of excessive water that would result in surface runoff in the removal process.  Dust suppression can be carried out in a controlled manner and no insurmountable environmental problem would result

CEDD’s Contractor

KTCDA work areas. Duration of the ash removal

A@

1, 10, EIA

II

Disposal

To monitor the disposal of waste at landfills, a “trip-ticket” system (WBTC No. 5/99) for all solid waste transfer/disposal operations should be implemented.  The system should be included as a contractual requirement, and monitored by the Environmental Team and audited by the Independent Checker (Environment).

CEDD’s Contractor

As above

A

1, 5, 9

III

Asbestos Removal

An asbestos abatement programme should be submitted to EPD for approval prior to the commencement of the asbestos abatement work.

CEDD and Contractor

As above

A

4

2

Demolition

 

 

 

 

 

A

Non-blasting Methodology

Waste Management Plan to be submitted to EPD.  Demolition by Non-Blasting Methodology Only.  All structures and buildings should be demolished and removed prior to demolition of chimneys

CEDD

KTCDA work areas. Duration of the demolition

C#

8

B

Material Storage

Covers for dusty stockpiles and control of dust emissions from construction (demolition) works requires appropriate dust control measures to be implemented in accordance with the requirements in the Air Pollution Control (Construction Dust) Regulation.

CEDD’s Contractor

As above

C

4

C

Vehicle movement

Haul road watering, vehicle wheel wash prior to exit.  Where practical, access roads should be protected with crushed gravel.

CEDD’s Contractor

As above

C

4

D

Plant maintenance

All plant shall be maintained to prevent any undue air emissions.

CEDD’s Contractor

As above

Prior to start of works

4

E

Improved Site Hoarding

Boundary hoarding to be modified in form of noise barrier to provide effective noise screening and made of panels with a superficial surface density of at least 10 kg/m3

CEDD’s Contractor

As above

C

Env. Permit

F

Demolition Sequence

Include careful consideration and positioning of portable noise barriers to allow noise attenuation. 

CEDD’s Contractor

As above

C

8

G

Portable Noise Barriers

Moveable noise barriers shall be provided close to PME in cases where, in the opinion of the Engineer, such PME has the potential to cause noise nuisance to sensitive receivers and where a benefit will result.  Such barriers shall be made of panels with superficial surface density not less than 10 kg/m3.

CEDD’s Contractor

As above

C

Env. Permit

H

Plant Operation

Modify continuous operational periods for noisy plant to comply with noise criteria.

CEDD’s Contractor

As above

C

Env Permit

I

Demolition Techniques

Selection of non-blasting demolition techniques to minimise noise and vibration. 

CEDD’s Contractor

As above

C

8

J

Plant maintenance

 

All plant shall be maintained to prevent any undue noise nuisance.

CEDD’s Contractor

As above

C

2, 3

K

Wheel wash

All wheel wash water shall be diverted to a sediment pit.

CEDD’s Contractor

As above

C

5

L

Sediment control

Sediment removal facilities shall provided and be maintained and excavated as necessary to prevent sedimentation of channels.  Perimeter channels should be provided. Works should be programmed for the dry season where feasible.  Environmental guidelines for the handling and disposal of discharges from construction sites, as stipulated in the Practice Note for Professional Persons, Construction Site Drainage (ProPECC PN 1/94) to be followed.

CEDD’s Contractor

As above

C

5, 12

M

Surface water diversion

All clean surface water shall be diverted around the site.

CEDD’s Contractor

As above

C

5, 12

N

Fuel can storage

All fuel cans shall be placed within a bunded area. Any fuel spills shall be mopped up as necessary.

CEDD’s Contractor

As above

C

5,6

O

Material, plant movement & fuel can filling.

Any fuel or oil spills shall be excavated and disposed of.

CEDD’s Contractor

As above

C

6,7

P

Generators

All generators shall be placed within a bunded area. Any fuel spills shall be mopped up as necessary.

CEDD’s Contractor

As above

C

5,6,7

Q

Material containers

All empty bags and containers shall be collected for disposal.

CEDD’s Contractor

As above

C

6,7

R

Worker generated litter and Waste

Litter receptacles shall be placed around the site. Litter shall be taken regularly to the refuse collection points. Chemical toilets (or suitable equivalent) should be provided for workers. Any canteens should have grease traps.

CEDD’s Contractor

As above

C

6

S

Neighbourhood nuisance

All complaints regarding construction works shall be relayed to the environmental team.

CEDD’s Contractor

As above

C

1, 6

T

Legal requirements

Different types of waste should be segregated, stored, transported and disposed of in accordance with the relevant legislative requirements and guidelines

CEDD’s Contractor

As above

C

1,6

U

On-site separation

On-site separation of municipal solid waste and construction/demolition wastes shall be conducted in order to minimise the amount of solid waste to be disposed to landfill.

CEDD’s Contractor

As above

C

1, 11

V

Temporary storage area

Separated wastes should be stored in different containers, skips, or stockpiles to enhance reuse or recycling of materials and encourage their proper disposal.

CEDD’s Contractor

As above

C

1, 11

W

Record of wastes

Records of quantities of wastes generated, recycled and disposed (with locations) shall be kept.

CEDD’s Contractor

As above

C

1, 9

X

Trip-ticket system

To monitor the disposal of waste at landfills and control fly-tipping, a “trip-ticket” system under WBTC N0.5/99 for all solid waste transfer/disposal operations should be implemented.  The system should be included as a contractual requirement, and monitored by the Environmental Team and audited by the Independent Checker (Environment).

CEDD’s Contractor

As above

C

1, 9

 

 

 

 

 

 

 

4

Monitoring and Audit

To be carried out in accordance with the Implementation Schedule in Table AC-2.

CEDD*/ Contractor/ RSS

KTCDA works areas

During demolition

C

1

*              Normally undertaken by a specialist monitoring team employed directly by the proponent and audited by the IEC

@             A = during ash removal (before demolition)

#              C = during construction (i.e. demolition phase).

1.        Environmental Impact Assessment Ordinance Technical Memorandum (EIAO)

2.        Noise Control Ordinance

3.        The ProPECC Note PN2/93 (Construction Noise daytime limits)

4.        Air Pollution Control Ordinance (APCO)

5.        Water Pollution Control Ordinance (WPCO)(Cap. 358)

6.        Waste Disposal Ordinance (Cap 354)

7.        Waste Disposal (Chemical Waste)(General) Regulation (Cap 354)

8.        Draft Code of Practice on Demolition of Buildings (BD, 1998)

9.        Works Bureau Technical Circular No. 5/99, Trip-ticket System for Disposal of Construction and Demolition Material

10.     Guidance Notes for Investigation and Remediation of Contaminated Sites

11.     Works Bureau Technical Circular No. 5/98, On Site Sorting of Construction Waste on Demolition Sites

12.     ProPECC Note PN 1/94Construction Site Drainage

 

Table C-4         Implementation Schedule of Recommended Mitigation Measures

EIA Ref.

EM&A Ref.

Environmental Protection Measures / Mitigation Measures

Location / Timing

Implementation Agent

Implementation Stage

Relevant Legislation and Guidelines

D

C

O

Air Quality

6.3.2

 

Adoption of good site practices and avoid practices likely to raise dust level

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

6.3.2

 

Frequent cleaning and damping down of stockpiles and dusty areas of the Site.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

6.3.2

 

Reducing drop height during material handling or wall felling.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

6.3.2

 

Imposing a vehicle speed restriction of 15 km/hr within the Site and confine haulage and waste collection vehicles to designated roadways inside the site.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

6.3.2

 

Provision of wheel washes facilities for Site vehicles leaving the Site.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

6.3.2

 

Regular plant maintenance to minimise exhaust emission.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

6.3.2

 

Sweep up dust and debris at the end of each shift.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Stockpiles of dusty waste materials greater than 20m3 shall be enclosed on three sides, with walls extending above the pile and 2 metres beyond the front of the pile.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Any vehicle with an open load carrying area used for moving potentially dusty material shall have properly fitting side and tail-boards.  Materials having the potential to create dust shall not be loaded to a level higher than the side and tail boards and shall be covered by a clean tarpaulin in good condition.  The tarpaulin shall be properly secured and shall extend at least 300m over the edges of the side and tail-boards.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Effective water sprays shall be used during the collection and loading of dusty wastes and other similar materials, when dust is likely to be created and to dampen all stored materials during dry and windy weather.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Areas within the KTCDA site where there is a regular movement of vehicles, shall have an approved hard surface and be kept clean of loose surface material.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Conveyor belts shall be fitted with wind-boards, and conveyor transfer points and hopper discharge areas shall be enclosed to minimize dust emission.  All conveyors carrying materials which have the potential to create dust shall be totally enclosed and fitted with belt cleaners.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

 

2.9.1

Adequate dust suppression plant including water bowers with spray bars shall be provided.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

APCO (Cap. 311); Air Pollution Control (Construction Dust) Regulation; EIAO-TM

Noise

5.8.1 & 5.8.2

 

Movable barriers as noise shields shall be considered for deployment close to noisy equipment.  Where required, these should be made of panels with a superficial surface density of at least 7 kg/m2.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

NCO (Cap. 400); EIAO-TM; PN 2/93

5.8.2

3.8.3

Silenced and super silenced type equipment.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

NCO (Cap. 400); EIAO-TM; PN 2/93

5.8.2

 

Reduction in number of plant operating simultaneously.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

NCO (Cap. 400); EIAO-TM; PN 2/93

5.8.2

 

Use of modified site hoarding to a perimeter noise barrier as a noise shield.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

NCO (Cap. 400); EIAO-TM; PN 2/93

5.8.2

 

Re-scheduling and restricting hours of operation of noisy tasks.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

NCO (Cap. 400); EIAO-TM; PN 2/93

Water Quality

 

4.3.2

Use of sediment traps, where appropriate.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.2

Adequate maintenance of drainage systems to prevent flooding and overflow.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.3

Provision of temporary channels to facilitate run-off discharge into the appropriate watercourses, via a silt retention pond, and permanent drainage channels to incorporate sediment basins or traps and baffles to enhance deposition rates.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.4

Provision of temporary and permanent drainage pipes and culverts to facilitate run-off discharge and shall be adequately designed for the controlled release of storm flows.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.4

Regular cleaning and maintenance of all sediment traps.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.4

When construction works has finished or the temporary diversion is no longer required, temporarily diverted drainage shall be reinstated to its original condition.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.5

Installation of wheel washing facilities to ensure no earth, mud and debris is deposited on roads.  Sand and silt in the wash water from such facilities shall be settled out and removed prior to discharge of the used water into storm drains.  A section of the road between the wheel washing bay and the public road shall be paved with backfill to prevent wash water or other site run-off from entering the public road drains.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.6

Provision of oil interception facilities in appropriate areas in the drainage system, where oil spills may occur, and regularly emptied to prevent the release of oil and grease into the storm water drainage system after accidental spillage.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.9

Debris and rubbish on site should be collected, handled and disposed or properly to prevent such material from entering the water column and causing water quality impacts. 

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

PN 1/94, WPCO (Cap. 358)

 

4.3.10

Fuel storage areas should be provided with locks and be sited on sealed areas if required, within bunds of a capacity equal to 110% of the storage capacity of the largest container (to provide a safety margin) and control spilt fuel oils.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

Waste Management – General

7.11.2

5.2.33

The Waste Management Plan shall be prepared in accordance with WBTC No. 29/2000 (superseded by ETWB TC(W) No. 15/2003) and shall provide details of the measures and procedures considered necessary to control and manage the storage, transportation and disposal of all wastes generated during the demolition.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

ü

ü

 

ETWB TC(W) No. 15/2003

7.10.30

5.2.37

Wastes should be handled and stored in a manner which ensures that they are held securely without loss or leakage thereby minimising the potential for pollution.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.30

5.2.37

Only reputable waste collectors authorised to collect the specific category of waste concerned should be employed.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

7.10.30

5.2.37

Appropriate measures should be employed to minimise windblown litter and dust during transportation by either covering trucks or transporting wastes in enclosed containers.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.30

5.2.37

The necessary waste disposal permits should be obtained from the appropriate authorities, if they are required, in accordance with the Waste Disposal Ordinance (Cap 354), Waste Disposal (Chemical Waste) (General) Regulation (Cap 354) and Government Land Ordinance (Cap 28).

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Waste Disposal Ordinance (Cap 354), Waste Disposal (Chemical Waste) (General) Regulation (Cap 354), Government Land Ordinance (Cap 28).

7.10.30

5.2.37

Collection of general refuse should be carried out frequently, preferably daily.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.30

5.2.37

Waste should only be disposed of at licensed sites and site staff and the civil engineering Contractor should develop procedures to ensure that illegal disposal of wastes does not occur.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.30

5.2.37

Waste storage areas should be well maintained and cleaned regularly.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.30

5.2.37

Records should be maintained of the quantities of wastes generated, recycled and disposed, determined by weighing each load.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

Waste Management - General Refuse

7.10.20

5.2.27

Office wastes can be reduced through the policies for re-use of paper in printers and copiers for draft documents. 

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The policies of recycling e.g. paper and toners or cartridges if volumes are large enough to warrant collection, should be encouraged with participation in a local collection scheme if one is available. 

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

In order to reduce waste, the number of photocopies shall be reduced to a minimum while internal documents and external documents shall be copied on both sides of paper where appropriate.  Recycling bins for paper and toners will be provided in site office to facilitate the recycling of paper.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.19

5.2.26

General refuse is generated largely by food service activities on site, so reusable rather than disposable dishware should be used if feasible.  Aluminium cans are often recovered from the waste stream by individual collectors if they are segregated or easily accessible, so separate, labelled bins for their deposit should be provided if feasible.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Putrescible wastes, such as lunch box, and domestic wastes generated on-site shall be stored in enclosed bins or compaction units separate from C&D and chemical wastes.  Waste paper will be stored in containers clearly marked as recyclable or waste. 

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Public Health and Municipal Services Ordinance (Cap. 132)

7.10.18

5.2.25

A reputable waste collector should be employed by the Contractor to remove general refuse, separately from C&D material and chemical wastes, preferably daily to minimise odour, pest and litter impacts.  The burning of refuse on construction sites is prohibited by law.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Public Health and Municipal Services Ordinance (Cap. 132), Air Pollution Control (Open Burning) Regulation

 

 

Waste disposal records shall be obtained from the appropriate authorities and collection of general refuse and general site housekeeping should be carried out.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Waste Disposal Ordinance (Cap. 354); Waste Disposal (Chemical Waste) (General) Regulation (Cap. 354); Government Land (Miscellaneous Provisions) Ordinance (Cap. 28).

Waste Management - C&D Materials

7.10.7

5.2.7

The Contractor should recycle C&D material on-site as far as possible.  Planning, careful design and good site management of the demolition process can minimise over ordering and avoidable waste.  Areas within the Site areas can be segregated for the separation and storage.  Proper segregation of wastes on Site will increase the feasibility of utilising recycling contractors to recycle certain components of the waste stream.  Concrete and masonry can be crushed and used as fill to level the Site after demolition.  However there will be little or no excavation of any underground structures therefore the majority of inert waste will need to be delivered to public filling areas.  Steel reinforcing bars can be re-used by scrap steel mills.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

ü

ü

 

ETWB TC(PS) No. 25/99, 12/2000;

ETWB TC(W) No. 15/2003

 

 

“Selective Demolition” involves demolition and removal of wastes of the same category one at a time.  In general, domestic wastes such as furniture, household appliances; metal components such as window frames, pipes; timber components such as doors, wooden floors; and other wastes such as tiles, asphalt materials, ceramic products should be removed first.  The building demolition shall begin after all the above non-structural materials have been stripped and removed.  To avoid mixing the non-recyclable bricks with the broken concrete, the demolition sequence should be planned in such a way that brick walls are demolished first and stockpiled separately before the demolition of structural members.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

All C&D materials arising from the demolition work shall be sorted on-site and separated into different groups for off-site disposal at landfills, public filling areas, in filling areas provided by the Contractor, or recycling at the C&D waste recycling facilities as appropriate.  All fill to be disposed of at public filling areas have to be sorted and broken down to meet the requirements of the Dumping Licence conditions.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

ETWB TC(PS) No. 12/2000

 

 

Designated areas for segregation and temporary storage of reusable and recyclable materials should be identified in the Waste Management Plan to be prepared by the Contractor.  The Contractor should recycle as much of the C&D material as possible on site.  Different areas of the work site should be designated for such segregation and storage wherever site conditions permit.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

C&D material should be removed from site as soon as practicable to avoid adverse environmental impacts due to on-site storage of the material.  It should be sorted/separated at the construction site as far as practicable into two main types: inert (including soil, rock, concrete, brick, aggregates and asphalt) and non-inert (wood, paper, general garbage and other inorganic).  Recyclable C&D materials such as broken concrete and rock should be further sorted out from the inert portion and be delivered to recycling facilities as designated by the Engineer’s Representative for processing into recycled aggregates for use in construction.  The non-recyclable inert portion can be used as public fill for dumping in public filling areas whilst the non-inert portion is classified as C&D waste which will require to be disposed of at the WENT Landfill Site or other areas as designated by EPD.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The Environment, Transport and Works Bureau Technical Circular (Works) No. 31/2004 – Trip Ticket System for Disposal of Construction & Demolition Materials promulgates the amended trip ticket system (TTS) for public works contracts including capital works contracts, where C&D materials including waste generated on site require disposal. 

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

ETWB TC(W) No. 31/2004

Waste Management -  Chemical Waste

7.10.10

5.2.10

For those processes that generate chemical waste, it may be possible to find alternatives which generate reduced quantities or even no chemical waste, or less dangerous types of chemical waste.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.11

5.2.11

Chemical waste that is produced, as defined under Section 3 of the Waste Disposal (Chemical Waste) (General) Regulation, should be handled in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Waste Disposal (Chemical Waste) (General) Regulation

7.10.12

5.2.12

Containers used for the storage of chemical wastes should:

a) Be suitable for the substance they are holding, resistant to corrosion, maintained in a good condition, and securely closed;

b) Have a capacity of less than 450 l unless the specifications have been approved by the EPD; and;

c) Display a label in English and Chinese in accordance with instructions prescribed in Schedule 2 of the Regulations.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.13

5.2.13

The storage area for chemical wastes should:

a) Be clearly labelled and used solely for the storage of chemical waste;

b) Be enclosed on at least 3 sides;

c) Have an impermeable floor and bunding, of capacity to accommodate 100% of the volume of the largest container or 20% by volume of the chemical waste stored in that area, whichever is the greatest;

d) Have adequate ventilation;

e) Be covered to prevent rainfall entering (water collected within the bund must be tested and disposed as chemical waste if necessary); and

f) Be arranged so that incompatible materials are adequately separated.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.14

5.2.14

Disposal of chemical waste should:

a) Be via a licensed waste collector; and

b) Be to a facility licensed to receive chemical waste, such as CWTC, which also offers a chemical waste collection service and can supply the necessary storage containers; or

c) Be to a recycling or reprocessing facility licensed by EPD.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.16

5.2.15

Asbestos waste that is produced should be handled in accordance with the Code of Practice on the Handling, Transportation and Disposal of Asbestos Wastes.  Detailed requirements have been presented in the Asbestos Study Report.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Type 1 asbestos wastes (bonded asbestos wastes (other than blue or brown asbestos) in good condition) shall be packed with 2 individual layers of strong transparent plastic sheets of not less than 0.15 mm thickness and completely sealed with adhesive tapes.  Type 1 waste shall be packed in suitable sizes for easy handling. The height of each package shall not exceed 750 mm.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Type 2 asbestos wastes (any waste containing loose asbestos fibres (other than blue or brown asbestos)) must be contained, as soon as it is produced, in strong bags made from plastic or other containers approved by EPD.  The bags should be goose-neck sealed by means of adhesive tapes.  A bag filled with asbestos waste should be placed inside another plastic bag to provide additional protection.  The colour of the inner bag should be white while the outer bag should be transparent to facilitate visual inspection.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The handling of Type 3 asbestos wastes (all blue asbestos (crocidolite) and brown asbestos (amosite), whether in good condition or not, or any articles contaminated by blue or brown asbestos) should be similar to that of Type 2 except that the colour of the inner bags should be orange.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

All storage of asbestos waste should be carried out properly in a secure place isolated from other substances so as to prevent any possible release of asbestos fibres into the atmosphere and contamination of other substances.  Type 1 asbestos waste should not be stored together with Types 2 and 3 asbestos wastes so as to avoid damage to the plastic bags of Type 2 or 3 asbestos waste, unless the bags are packed in boxes or drums for additional protection. Bagged asbestos waste should not be stacked more than 3 bags high in order to avoid damage to the bottom bag.  The storage area should be isolated from other working areas and bear warning panels to alert people of the presence of asbestos waste.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Disposal of asbestos wastes shall not commence before a designated notification has been given to EPD and confirmed.  Before being transported for disposal, all the asbestos waste produced should be stored in a temporary storage area.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Section 7 of the Code of Practice on the Handling, Transportation and Disposal of Asbestos Waste.

 

 

All asbestos wastes for disposal should be transported by an asbestos waste collector licensed by EPD and in a designated vehicle equipped as stated in the Code of Practice.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The ash/rubble in between the Chimneys A and B on-site shall be treated by solidification / stabilisation with cement, and the treated ash shall be sealed into steel drums lined with plastic sheeting prior to disposal at designated areas in the landfill.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The proposed disposal method for ash waste is to be collected up and stabilised to meet landfill disposal criteria of EPD.  In such case, it is envisaged that the process would involve collection and mixing the ash material with cement.  Pilot mixing and TCLP tests would establish the ratio of cement to ash to the satisfaction of EPD.  The materials for disposal would then be treated and the extracted material placed into polythene lined steel drums.  Transparent plastic sheeting of 0.15mm thickness low-density polythene or PVC should be employed.  The drums should be 16 gauge steel or thicker and fitted with double bung fixed ends adequately sealed and well labelled in new or good condition.  Prior agreement of the disposal criteria from EPD and agreement to disposal from the landfill operator must be obtained.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The release of contaminants from disturbed ash should be minimised prior to gathering up the ash materials and amended water containing a wetting agent should be sprayed on the ash.  The wetting agent will assist in water penetration to thoroughly soak the ash and ensure dust levels are reduced without using excessive water.  (Spray shall comprise 50% polyoxyethylene ester and 50% polyoxyethylene ether, or equivalent, diluted to specific concentration in accordance with the manufacturer’s instructions).  The use of amended water for dust suppression will minimise the use of excessive water that would result in surface runoff in the removal process.  Dust suppression can be carried out in a controlled manner and no insurmountable environmental problem would result.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Where the level of dioxin contaminants exceeded the USEPA criterion of 1ppb (parts per billion) by weight, the remediation strategies for contaminated material are recommended as follows:

a) Ash/rubble waste shall be collected up and stabilised / solidified to meet landfill disposal criteria of EPD, 1 part per billion (1ppb TEQ) TCLP;

b) It is envisaged that the process would involve collection and mixing the ash/rubble material with cement followed by sealing in polythene lined steel drums;

c) Pilot mixing of the ash with progressively greater proportions of cement would precede the treatment; and

d) The stabilised / solidified DCM that is contained in polythene lined steel drums shall be transported for landfill disposal.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The chimney interior shall be brushed clean.  The brushed out materials including ash and dust shall be sealed in steel drums before disposal at the CWTC.  Subsequently the internal brick lining shall be scrabbled and HEPA vacuumed to thoroughly remove the ash attached.  The clean bricks shall then be dismantled from top to bottom and placed inside steel drums before disposal at the landfill.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Proper decontamination facilities similar to that employed in asbestos removal works (i.e. 3-chamber decontamination units) shall be adopted. Workers shall be protected with disposable coveralls and appropriate respirators suitable for protection against asbestos fibre and dioxin, as well as to fulfil confined space requirements.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The flue sections shall either be thoroughly cleaned with high efficiency vacuum and wet cloth to remove all dioxin-contaminated ash, or the dismantled sections, considered as chemical wastes, wrapped with impermeable polythene sheets for proper disposal to landfill following the requirements of the Waste Disposal (Chemical Waste) (General) Regulation.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

Waste Disposal (Chemical Waste) (General) Regulation.

 

 

The required decontamination shall be conducted under negative pressure with all openings and uncontaminated areas sealed with impermeable plastics.  This requirement is analogous to the ‘full containment’ requirements for asbestos removal works.  The chimney flues should be taken down in manageable sections within the containment, and any ash deposits scrapped off and sealed in drums for disposal to landfill site.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

The flue sections shall either be cleaned with high efficiency vacuum and wet cloth, or wrapped with impermeable plastics for disposal to landfill site.  The flues will be removed from top down and hence the ACM will be removed when the removal of chimney flue sections has proceeded down to the levels where the ACM is located.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

 

 

Given the nature of the work and the contaminants involved consideration should be given to the use of decontamination facilities (showers) that should be provided for the workforce to remove contamination after work.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.21

5.2.28

Different types of waste should be segregated and stored in different containers, skips or stockpiles to enhance reuse or recycling of materials and their proper disposal.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.22

5.2.39

An on-site temporary storage area should also be provided.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

 

7.10.25

5.2.32

A recording system for the amount of wastes generated, recycled and disposed (including the disposal sites) should be proposed.

KTCDA Site - Phase 1 Part 1

CEDD’s Contractor

 

ü

 

ETWB TC(W) No. 15/2003

 

Table C‑5         Event Contingency Plan for Environmental Complaints

Step

Day

Action

Contractor

ER

ET

IEC

1

1

Party receiving complaint shall create a new complaint record. If the Contractor receives a complaint, he shall pass the information to the ER. 

¨

¨

¨

 

2

1

ER to ensure details of complaint provided to Contractor (if complaint not originally received by the Contractor), ET and IEC

 

¨

 

 

3

2

Within 1 working day after the receipt of the Notification of Complaint, provide ER relevant works site information, e.g. types and locations of construction works.

¨

 

 

à

4

2

Investigate the complaint to determine its validity, and to assess whether the source of the problem is due to the works activities.  Report the validity of the complaint to ER.

 

 

 

¨à

5

2

If complaint is valid and due to works, ER shall notify the Contractor.  If complaint is invalid or not due to works, Go to Step 12.

 

¨

 

 

6

2

Propose mitigation measures to ER within 1 working day of the receipt of the Notification.

¨

 

 

à

7

2

Review and agree with the proposed mitigation measures and make recommendations where necessary.

 

¨à

 

¨à

8

2

Implement the mitigation measures once they have been agreed.

¨

 

 

 

9

4

Audit the implementation of the proposed mitigation measures on site within 2 working days after measures have been agreed.

 

¨à

 

¨à

10

-

Undertake additional monitoring to verify the situation where necessary.

 

 

¨

 

11

4

Report the investigation results and subsequent actions taken to ER within 2 working days after the implementation of mitigation measures.

¨

 

¨

 

12

5

Respond to the complainant within 1 working day after receiving the investigation report.

 

¨

 

 

13

25

If no further comments or complaints are received from the complainant within 20 working days after responding to the complainant, close the complaint record.  If the complainant has further comments or complaints on the same issue, notify other parties on the same day and go to step 2.

 

¨

 

¨à

¨         Action Party

à          Enter comments/ proposals into appropriate complaint record where applicable

Appendix D  EM&A Schedule


Appendix E          Air Quality Monitoring Results and Graphical Presentation

 

 

 

 

 

 

 

 

 

 

 

Appendix F  Noise Monitoring Results and Graphical Presentation