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Civil
Engineering and Development Department
Land Works Division
2/F, Civil
Engineering and
Homantin,
Demolition of Kwai Chung Incineration Plant
Environmental
Permit No.
EP-121/2002
Monthly EM&A Report
for Apr 2008 Rev A
Report No.: 203204/KCIP/EM&A/5/A
May 08
Mott Connell Limited
7/F,
Tsim Sha Tsui,
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.
Demolition of Kwai Chung Incineration Plant
Environmental Permit No.
EP-121/2002
Monthly EM&A Report for Apr 2008 Rev A
Report No.: 203204/KCIP/EM&A/5/A
May 08
Issue and Revision Record
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Pursuant to
Condition 2.3 and 3.5 of the Environmental Permit
EP-121/2002
This
Monthly EM&A Report (Apr 2008) has been reviewed, certified and verified by
the Independent Environmental Checker (IEC) as Conforming to the Information
and Recommendations contained in the EIA Report
Certified and Verified by:
Independent
Environmental Checker (IEC)
Hyder Consulting Limited
Date 14 May 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............................................................................................. 1-1
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....................................................... 2-1
2.3 Event and Action
Plans................................................................................... 2-1
2.4 Implementation of
Environmental Mitigation Measures...................................... 2-1
3. Monitoring
Results 3-1
3.1 Impact Monitoring
Schedule............................................................................ 3-1
3.2 Monitoring
Methodology.................................................................................. 3-1
3.3 Monitoring
Equipment..................................................................................... 3-3
3.4 Equipment
Calibration..................................................................................... 3-3
3.5 Results of Impact
Monitoring........................................................................... 3-3
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.............................................................................. 4-2
4.4 Review of
Environmental Monitoring Procedures.............................................. 4-3
4.5 Implementation
Status of Environmental Mitigation Measures............................ 4-3
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 D.......... EM&A
Schedule
Appendix E.......... Air
Quality Monitoring Results and Graphical Presentation
Appendix F.......... Calibration
Certificates
List of Tables
Table 2‑1............ Summary of Impact EM&A
Requirements.................................................. 2-1
Table
3‑1............ TSP Monitoring Equipment.......................................................................... 3-3
Table 3‑2............ Equipment Calibration Frequencies............................................................ 3-3
Table 3‑3............ Results of 1-Hour TSP Impact Monitoring................................................... 3-3
Table 3‑4............ Results of 24-Hour TSP Impact Monitoring................................................. 3-4
Table 4‑1............ Status of Environmental Submissions, Permits and
Licenses.................. 4-1
Table 4‑2............ Monthly Summary Waste Flow
Table for 2008........................................... 4-2
Table
5‑1............ Summary of Environmental
Complaints and Prosecutions........................ 5-1
Table 5‑2............ Summary of Environmental Site Inspections.............................................. 5-2
Table
B‑1............ Event and Action Plan for
Air Quality.......................................................... B-1
Table
C‑2........... Implementation Schedule of
Recommended Mitigation Measures From the EIA C-1
Table
C‑3........... Event Contingency Plan for
Environmental Complaints............................ C-5
List of Figures
Figure 1.1........... Layout Plan of Work Site and the Environs
Figure 1.2........... Project Organisation Chart
Figure 2.1........... Location of Air Quality (Dust) Monitoring Station
The EM&A programme for this Project commenced on 1 Dec 2007. This report presents a summary of the environmental monitoring and audit works, list of activities, and mitigation measures implemented during the reporting month of April 2008.
This is the 5th Monthly EM&A Report for the works carried out during the reporting month.
The following construction activities have taken place during the reporting month: -
· Erection of Type F hoarding along DSD treatment plant commenced;
· Pre-fabrication of main frame of Type F hoarding continued;
· Erection of bamboo scaffolding for the removal of asbestos cladding on the Reception Bay of KCIP was completed;
· Erection of temporary bamboo access from 1st floor to the roof of KCIP building for inspecting building & ACM works at high level (45m) was carried out;
· No removal works for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) have been carried out.
Impact monitoring for air quality (dust) due to the hoarding erection in Portion A continued during the reporting month. No exceedance of the Action and Limit Levels for dust was recorded.
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 3, 10, 18 and 24 Apr 2008.
No non-compliances with regard to site environmental audits were recorded in this reporting month.
As per the EM&A Manual, baseline 1-hour and 24-hour Total Suspended Particulates (TSP monitoring was conducted during the period of 31 October 2007 to 13 November 2007. Results were reported in the Baseline Monitoring Report submitted in November 2007.
Future key issues to be considered in the forthcoming month include: -
· Erection and installation of hoarding type ‘F’ and gantries;
· Erection of barging point;
· Preparation works for asbestos removal.
1.1.1 This Project – “Demolition of Kwai Chung Incineration Plant” is a Designated Project defined under the EIA Ordinance. An Environmental Permit (“EP”) was issued on 1 March 2002 [Permit No. EP-121/2002].
1.1.2 This Contract [No.: CV/2007/06] for the Project was awarded to the Contractor – China International Water & Electric Corporation and contractually commenced on 31 October 2007. The main Contract will last for 45 months excluding 12 months for landscape establishment works. In accordance with Condition 1.11 of the Environmental Permit EP-121/2002, the Director of Environmental Protection (DEP) was notified that the tentative commencement date for the Project is 24 Jan 2008 within the context of the Environmental Permit.
1.1.3 The scope of the Project includes demolition and clearance of the existing chimney, buildings and ancillary structures above the existing concrete ground slab where the former Kwai Chung Incineration Plant (“KCIP”) is located. It also includes the removal of asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) prior to demolition of structures and subsequent site remediation.
1.1.4
A layout plan of the Project site and the
environs is given in Figure 1.1Figure 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 of the Project.
1.2 Coverage of this EM&A Report
1.2.1 The EM&A programme for this Project commenced on 1 Dec 2007. This report presents a summary of the environmental monitoring and audit works, list of activities, and mitigation measures implemented during the reporting month in Apr 2008.
1.2.2 This is the 5th Monthly EM&A Report for the works carried out during the reporting month.
1.3 Project Management Organisation
1.3.1
The project organisation chart is presented in Figure 1.2Figure 1.2.
1.5 Works Undertaken in the Reporting Month
1.5.1 The following construction activities have taken place during the reporting month: -
· Erection of Type F hoarding along DSD treatment plant commenced;
· Pre-fabrication of main frame of Type F hoarding continued;
· Erection of bamboo scaffolding for the removal of asbestos cladding on the Reception Bay of KCIP was completed;
· Erection of temporary bamboo access from 1st floor to the roof of KCIP building for inspecting building & ACM works at high level (45m) was carried out;
· No removal works for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) have been carried out.
2.1 Summary of EM&A Requirements
2.1.1 The EM&A programme requires environmental monitoring of air quality and waste management as specified in the approved EM&A Manual dated Sep 2001.
2.1.2
1-hour TSP and 24-hour TSP levels at 1 dust
monitoring station are to be taken during the course of dusty work in every
reporting month. This air quality monitoring stations for 24-hour TSP and
1-hour TSP measurements is shown in Figure 2.1Figure 2.1.
2.1.3
A summary of impact EM&A requirements is
presented in Table 2‑1Table 2‑1 below.
Table 2‑1 Summary
of Impact EM&A Requirements
|
Descriptions |
Locations |
Frequencies |
Duration |
|
|
Air Quality |
24-Hour TSP |
1 Location - A1 |
Once every 6 days |
During dust generating construction works |
|
1-Hour TSP |
1 Location - A1 |
3 times every 6 days |
During dust generating construction works |
|
|
Waste |
On-Site Waste Audit |
Active Work Sites |
Weekly |
During Construction |
|
On-Site Waste Inspection |
||||
|
Wastewater |
On-Site Wastewater Audit |
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 –
Boundary of the site adjacent to the Kwai Chung
Primary Treatment Plant
2.2 Environmental Quality Performance Limits
2.2.1
Environmental Quality Performance Limits for air
quality are shown in Appendix AAppendix A.
2.3.1
The Event and Action Plans for air quality are
shown in Appendix BAppendix 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 EM&A Manual.
During routine site inspections, the Contractor's implementation of mitigation
measures, if any, are to be inspected and reviewed. A schedule of the
implementation of mitigation measures identified at the EIA stage is given in Appendix CAppendix C.
Figure 2.1 Location of Air Quality (Dust) Monitoring Station
3.1 Impact Monitoring Schedule
3.1.1
Regular site inspections were carried out on 3,
10, 18 and 24 Apr 2008 in the reporting month to assess the compliance with
environmental requirements. The EM&A schedule is
given in Appendix DAppendix D.
3.1.2 Impact monitoring for air quality (dust) due to the hoarding construction continued during the reporting month.
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
· 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.
3.2.3
As per the approved EM&A Manual, dust
monitoring stations are located as shown in Figure 2.1Figure 2.1.
3.3.1
The equipment used for air quality (dust)
monitoring is listed in Table 3‑1Table 3‑1.
Table 3‑1 TSP Monitoring Equipment
|
Equipment |
Model |
|
HVS Sampler |
Greasby GMWS 2310 Accu-vol system |
|
Calibrator |
Tisch TE-5025A |
|
1-hour TSP Dust Meter |
TSI Model 8520 Dust
Trak Aerosol Monitor |
3.4.1
The calibration frequencies of the monitoring equipment
are provided in Table 3‑2Table 3‑2.
Table 3‑2 Equipment Calibration Frequencies
|
Equipment |
Calibration Frequency |
Latest Calibration Date |
|
High Volume Sampler Greasby GMWS 2310 Accu-vol system |
Every two months |
5 Mar 2008 |
|
1-hour TSP Dust Meter TSI Model 8520 Dust Trak Aerosol Monitor |
Every six months |
14 Mar 2008 |
3.4.2
The calibration certificates are included in Appendix FAppendix F.
3.5 Results of Impact Monitoring
3.5.1
Results of 1-hour TSP level are summarised in Table 3‑3Table 3‑3. Detailed
results, including weather conditions, and graphical presentations are included
in Appendix EAppendix E.
Table 3‑3 Results of 1-Hour TSP Impact Monitoring
|
Monitoring Station |
1-hour |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
A1 |
183 – 272 |
345 |
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 3‑4Table 3‑4. Detailed
results, including weather conditions, and graphical presentations are included
in Appendix EAppendix E.
Table 3‑4 Results of 24-Hour TSP Impact Monitoring
|
Monitoring Station |
1-hour |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
A1 |
73 – 176 |
179 |
260 |
3.5.4 No exceedance of Action / Limit Levels for 24-hr TSP was recorded in the reporting month.
4.1.1 One environmental meeting was held on the day of the monthly site inspection on 10 Apr 2008.
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 4‑1Table 4‑1 below.
Table 4‑1 Status of Environmental Submissions, Permits and Licenses
|
Item |
Description |
Date of Application/ Submission |
Status |
||
|
1. |
Environmental Permit (EP No. EP-121/2002) |
4 Feb 2002 |
Valid |
||
|
2. |
Billing Account under Waste Disposal (Charges for Disposal of Construction Waste) Regulation (Ref. No.: 7006285) |
Approved on 16 Nov 2007 |
Valid |
||
|
3. |
Waste Management Plan |
v1.1 on 29 Nov 2007 v2.1 on 14 Apr 2008 |
Contractor preparing further revised submission |
||
|
4. |
Registration as a Chemical Waste Producer under Waste Disposal (Chemical Waste) (General) Regulation (Ref. No.: WPN-5292-320-C3459-01) |
2 Nov 2007 |
Approved by EPD on 26 Nov 2007 |
||
|
5. |
Effluent Discharge Licence (Ref. No.: EP760/267/012882I) |
8 Nov 2007 |
Approved by EPD on 10 Mar 2008. Contractor applied for condition variation of licence on 15 Mar 2008 & awaiting EPD approval. |
||
|
6. |
Notification pursuant to Section 3(1) of the Air Pollution Control (Construction Dust) Regulation (Form NA) |
EPD notified on 15 Jan 2008 |
Valid |
||
|
7. |
Notification of commencement of asbestos abatement work pursuant to Section 73 of the Air Pollution Control Ordinance |
EPD notified on 4 Feb 2008 |
Valid. Approved by EPD on 5 Mar 2008. |
||
|
New submissions |
|||||
|
|
No new submissions |
|
|
||
4.3.1
No C&D materials except
general refuse was generated by the Project in the reporting month, as
shown in Table 4‑2Table 4‑2. A trip ticket system has been implemented for all
off-site waste disposals.
Table 4‑2 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 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.250 |
0.146 |
|
Feb |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.250 |
0.158 |
|
Mar |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.125 |
0.045 |
|
Apr |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.125 |
0.113 |
|
May |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
0 |
|
0.125 |
|
|
June |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
0 |
|
0.125 |
|
|
Sub-total |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.6 |
|
0.6 |
|
0 |
|
1.000 |
|
|
Jul |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
0 |
|
0.125 |
|
|
Aug |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
120 |
|
0.125 |
|
|
Sep |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
120 |
|
0.125 |
|
|
Oct |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
120 |
|
0.125 |
|
|
Nov |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
120 |
|
0.125 |
|
|
Dec |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
120 |
|
0.125 |
|
|
Total |
0 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
1.2 |
|
1.2 |
|
600 |
|
1.750 |
|
4.4 Review of Environmental Monitoring Procedures
4.4.1 The monitoring works conducted by the Environmental Team have been reviewed regularly. 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/ EM&A Manual has been given in Appendix CAppendix C. During this reporting month, there has not been
major progress that warrants the implementation of the listed mitigation
measures.
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 CAppendix C presents the environmental complaint event
contingency plan of the Project and Table 5‑1Table 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 |
|||
|
Apr 2008 |
Cumulative |
Apr 2008 |
Cumulative |
Apr 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.
5.2.1 No environmental enquiries were received during the reporting month.
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 Plan for air quality (dust)
is presented in Appendix BAppendix B.
Air Quality - Dust
5.4.2 No exceedance of the Action and Limit Levels for 1-hour and 24-hour TSP was recorded.
Waste Management
5.4.3 Not applicable.
Summary of Exceedances
5.4.4
Table 5‑2Table 5‑2 summarises the total number of exceedances
for air quality 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 |
21 |
0 |
0% |
0 |
0% |
5.4.5 No valid exceedance was recorded in the reporting period.
Site Environmental Audit
5.4.6 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 ER, Contractor, ETL and IEC on 10 Apr 2008 and additional weekly site inspections were carried out by the ER, Contractor and ET on 3, 18 and 24 Apr 2008.
5.4.7
Major findings provided by ET and those jointly
provided by the ET and IEC on 10 Apr 2008 from the site inspection are summarised
in Table 5‑3Table 5‑3 below.
Table 5‑3 Summary of Environmental Site Inspections
|
Date of Inspection |
Major Observations |
Action(s) |
|
3 April 2008 |
No observation was made. |
- |
|
10 April 2008 |
No shelter or other suitable measures provided to mitigation rainwater accumulation inside drip tray for welding machine next to chimney. |
Shelter provided for welding machine and drip tray. |
|
|
Light grey smoke was observed continuously emitted from machine on the truck for drainage pipe washing near the ramp. The Contractor was reminded to provide proper maintenance of plants/equipments at good condition to minimise exhaust emissions. |
Machine and truck used for drainage pipe washing were removed from site. |
|
18 April 2008 |
No new observations of importance. |
- |
|
24 April 2008 |
No new observations of importance. |
- |
5.4.8 There are no non-compliances in this reporting month.
6.1 Key Issues and Recommendations for Coming Month
6.1.1 Key issues to be considered in the coming month include: -
1. Erection and installation of hoarding type ‘F’ and gantries;
2. Erection of barging point;
3. Preparation works for asbestos removal.
7.1.1 EM&A was performed in Apr 2008 during which some site works have commenced. All monitoring and audit results, if any, in the reporting month were checked and reviewed.
7.1.2 Airborne dust monitoring commenced due to hoarding erection works continued during the reporting month. Also, no asbestos/ dioxin abatement works was conducted. In general, the Contractor is preparing to implement all required mitigation measures and has been reasonably responsive to the ET’s recommendations on any discrepancies observed during the weekly environmental site inspection of this reporting month.
7.1.3 No environmental complaints, notification summons or successful prosecutions have been received or made against this Project in this reporting month.
7.2.1 No recommendations made at this stage pending more site progress achieved.
Action and Limit Levels for 24-hour TSP
|
Monitoring Station |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
A1 |
179 |
260 |
Action and Limit Levels for 1-hour TSP
|
Monitoring Station |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
A1 |
345 |
500 |
Appendix B Event and
Action Plans
Table B‑1 Event and 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. 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 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 |
Appendix C Schedule of
Mitigation Measures from the EIA/ EM&A Manual and Event Contingency Plan
for Environmental Compliant
Table C‑2 Implementation Schedule of Recommended
Mitigation Measures From the EIA
|
No. |
Activity |
Mitigation/EIA
Recommendations |
Responsibility for
Implementation |
Location Duration
completion of measures |
Implemen-tation Stage |
Relevant Guidelines
Legislation |
|
1 |
Ash Disposal |
|
|
|
|
|
|
I |
Treatment |
Reconfirm extent of
contaminated ash deposits by sampling for dioxins and furans. 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. |
CEDD’s Contractor |
KCIP 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 |
|
|
|
|
|
|
A1 |
Non-blasting Methodology |
Demolition by Non-Blasting
Methodology Only. All structures and
buildings should be demolished and removed prior to demolition of chimneys |
CEDD |
KCIP work areas. Duration of the demolition |
C# |
8 |
|
A2 |
Waste Management Plan. |
A Waste Management Plan
shall be submitted to EPD for approval.
The Waste Management Plan shall include, but not be limited to, the
findings of the Waste Management Paper of the EIA, the types, quantities,
disposal methods, timing, and locations of final disposition,
responsibilities for implementation and the possible recycling and reuse of
wastes generated. |
CEDD and Contractor |
Prior to commencement of the demolition
works |
Prior to C# |
1 |
|
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 |
KCIP work areas. Duration of the demolition |
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 |
Demolition Techniques |
Selection of non-blasting
demolition techniques to minimise noise and vibration. |
CEDD’s Contractor |
As above |
C |
8 |
|
F |
Plant maintenance |
All plant shall be
maintained to prevent any undue noise nuisance. |
CEDD’s Contractor |
As above |
C |
2, 3 |
|
G |
Wheel wash |
All wheel wash water shall
be diverted to a sediment pit. |
CEDD’s Contractor |
As above |
C |
5 |
|
H |
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 |
|
I |
Surface water diversion |
All clean surface water
shall be diverted around the site. |
CEDD’s Contractor |
As above |
C |
5, 12 |
|
J |
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 |
|
K |
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 |
|
L |
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 |
|
M |
Material containers |
All empty bags and
containers shall be collected for disposal. |
CEDD’s Contractor |
As above |
C |
6,7 |
|
N |
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 |
|
O |
Neighbourhood nuisance |
All complaints regarding
construction works shall be relayed to the environmental team. |
CEDD’s Contractor |
As above |
C |
1, 6 |
|
P |
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 |
|
Q |
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 |
|
R |
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 |
|
S |
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 |
|
T |
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 |
|
3 |
Soil Remediation Phase |
|
|
|
|
|
|
U |
B, C, D, F, G, I, J, K, L,
M, N, O, P, Q, R, S and T as above |
As above (see W for soil
remediation). |
As above |
As above |
R |
As above |
|
V |
De-watering |
Collect and recycle
extracted groundwater and leachate by mixing with
cement for soil remediation.
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. Any surplus groundwater
and leachate requiring disposal to be disposed of
under the relevant legislation or treated to meet the standards given in
Table 9a of the WPCO TM. |
CEDD’s Contractor |
KCIP work areas. Duration of the soil
remediation |
R |
5 |
|
W |
Immobilisation |
Immobilisation and testing
of waste soil shall be carried out according to the relevant regulations and
recommendations of the EIA including immobilisation by collection and mixing
the contaminated soil material with cement.
Pilot mixing and TCLP tests should verify the effectiveness and
establish the ratio of cement to soil to the satisfaction of EPD. Reassurance confirmatory sampling shall be
carried out to confirm the extent of contamination. Soil waste to be cast in blocks and
replaced in the ground. Extracted soils
and materials and stabilisation/solidification to be conducted in bunded area to prevent surface run-off. See also item 2(H) above. Final soil decontamination report to be
submitted to EPD. |
CEDD’s Contractor |
As above |
R |
1, 10 |
|
4 |
Monitoring and Audit |
To be carried out in
accordance with the Schedule in the EM&A Manual. |
CEDD*/ Contractor/ RSS |
KCIP works areas During demolition and at end of demolition
throughout execution of Remediation Action Plan |
C |
1 |
* Normally undertaken by a specialist monitoring team employed directly by the proponent and audited by the Independent Checker (Environment)
@ A = during ash
removal (before demolition)
# C = during
construction (i.e. demolition phase).
* R = during soil
remediation phase (after demolition)
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‑3 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
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