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/A
Monthly EM&A
Report for May
2009 Rev A
Report No.: 203204/KCIP/EM&A/18/A
Jun
2009
Mott MacDonald Hong Kong 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 MacDonald being obtained. Mott MacDonald 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 MacDonald Hong Kong for all loss or
damage resulting therefrom. Mott
MacDonald 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 MacDonald 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 MacDonald and
used by Mott MacDonald in preparing this report.
Demolition
of Kwai Chung Incineration Plant
Environmental
Permit No.
EP-121/2002/A
Monthly
EM&A Report for May
2009
Rev A
Report No.: 203204/KCIP/EM&A/18/A
Jun
2009
Issue and Revision Record
|
Rev |
Date |
Originator |
Checker |
Approver |
Description |
|
A |
Jun
2009 |
Isaac
Chu |
Joseph
Chan |
Anne
F Kerr |
Submission
to EPD |
|
|
|
|
|
|
|
Pursuant to
Condition 2.3 and 3.5 of the Environmental Permit
EP-121/2002/A
This
Monthly
EM&A Report (May
2009) has been
reviewed, certified and verified by the following EM&A members as
Conforming to the Information and Recommendations contained in the EIA Report
Certified by:
Joseph Chan
Environmental
Team (ET) Leader
Mott MacDonald
Hong Kong Limited
Date 12 Jun
2009
Verified by:
Independent
Environmental Checker (IEC)
Hyder
Consulting Limited
Date 12 Jun
2009
List of Contents Page
2.4 Implementation of Environmental
Mitigation Measures...................................... 2-1
4. Project
Environmental Status 4-1
4.2 Status of Environmental
Submissions, Permits and Licenses.............................. 4-1
4.4 Review of Environmental
Monitoring Procedures.............................................. 4-3
4.5 Implementation Status of
Environmental Mitigation Measures............................ 4-3
5.2 Site
Effluent Discharge/WPCO Effluent Discharge.......................................... 5-1
6. Environmental
COMPLAINTS AND NON-COMPLIANCE 6-1
6.1 Summary of Environmental
Complaints, Notifications of Summons and Successful Prosecutions 6-1
6.4 Environmental
Exceedance/ Non-compliance................................................... 6-1
7.1 Key Issues and Recommendations
for Coming Month....................................... 7-1
8. conclusion
and recommendation 8-1
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
Appendix G ......... Works Programme
Appendix H ......... Weather
Information from HKO
List of Tables
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 December 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 May 2009.
This is the 18th Monthly EM&A Report for the works carried out during the reporting month.
The following activities have taken place during the reporting month: -
· Demolition of the Incineration Plant;
· Erection of scaffolding inside the chimney; and
· Disposal of dioxin/furan contaminated materials (“DCM”) to SENT Landfill on 21, 22 and 25 May 2009.
· Disposal of asbestos contaminated materials (“ACM”) to SENT Landfill on 27 May 2009.
The
DCM disposed from site consisted of 53 drums and 50 drums of waste
material on 21 and 22 May 2009 respectively. On 25 May 2009, the DCM disposed
consisted of 18 drums of waste materials, flexible joints and waste materials
including PPE and containment. The ACM disposed on 27 May 2009 consisted of
packing of waste materials and cladding. The whole process was closely
monitored by ER’s representative.
Impact monitoring for air quality (dust) due to the demolition work 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 8, 14, 21 and 27 May 2009.
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: -
·
Demolition of Incineration Plant;
· Scaffolding erection inside chimney;
· Sorting and disposal of C&D materials;
· Disposal of asbestos contaminated materials (“ACM”) and solidified dioxin/furan contaminated materials (“DCM”); and
· Removal of ACM and DCM at the chimney.
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/A, the Director of Environmental Protection (DEP) was notified that the commencement date for the Project was on 24 January 2008.
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 are presented in Figure 1.1.
1.1.5 Mott MacDonald Hong Kong Limited (MMHK) 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 December 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 May 2009.
1.2.2 This is the 18th 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 1.2.
1.5 Works Undertaken in the Reporting Month
1.5.1 The following activities have taken place during the reporting month: -
· Demolition of the Incineration Plant;
· Erection of scaffolding inside the chimney; and
· Disposal of dioxin/furan contaminated materials (“DCM”) to SENT Landfill on 21, 22 and 25 May 2009.
· Disposal of asbestos contaminated materials (“ACM”) to SENT Landfill on 27 May 2009.
The DCM disposed from site consisted of 53 drums and 50 drums of waste material on 21 and 22 May 2009 respectively. On 25 May 2009, the DCM disposed consisted of 18 drums of waste materials, flexible joints and waste materials including PPE and containment. The ACM disposed on 27 May 2009 consisted of packing of waste materials and cladding. The whole process was closely monitored by ER’s representative.
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 September 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 2.1.
2.1.3 A summary of impact EM&A requirements is presented in Table 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 A.
2.3.1 The Event and Action Plans for air quality 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 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 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 8, 14, 21 and 27 May 2009 in the reporting month to assess the compliance with environmental requirements. The EM&A schedule is given in Appendix D.
3.1.2 Impact monitoring for air quality (dust) due to the demolition work 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 2.1 above.
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 |
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 3‑2.
Table 3‑2 Equipment Calibration Frequencies
|
Equipment |
Calibration Frequency |
Calibration Due Date |
|
High Volume Sampler Greasby GMWS 2310 Accu-vol system |
Every two months |
5 July 2009 |
|
1-hour TSP Dust Meter TSI Model 8520 Dust Trak Aerosol Monitor |
Every six months |
12 July 2009 |
3.4.2 The calibration certificates are included in Appendix F.
3.5 Results of Impact Monitoring
3.5.1 Results of 1-hour TSP level are summarised in Table 3‑3. Detailed results, including weather conditions, and graphical presentations are included in Appendix E.
Table 3‑3 Results of 1-Hour TSP Impact Monitoring
|
Monitoring Station |
1-hour |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
A1 |
108-256 |
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 3‑4. Detailed results, including weather conditions, and graphical presentations are included in Appendix E.
Table 3‑4 Results of 24-Hour TSP Impact Monitoring
|
Monitoring Station |
24-hour
|
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
A1 |
56-100 |
179 |
260 |
3.5.4 No exceedance of Action / Limit Levels for 24-hr TSP was recorded in the reporting month.
3.5.5 Weather information obtained from the Hong Kong Observatory in the reporting month is included in Appendix H.
4.1.1 One environmental meeting was held on the day of the monthly site inspection on 14 May 2009.
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/ Submission |
Status |
|
1. |
Environmental Permit (EP No. EP-121/2002/A) under Variation of Environmental Permit (VEP-284/2009) |
VEP applied on 6 Apr 2009 |
VEP approved on 28 Apr 2009 |
|
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 |
v3.3 approved on 9 Apr 2009 |
v3.3: Valid |
|
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.: EP760/320/0128821) |
Variation of License submitted on 10 Nov 2008 |
Approved by EPD on 5 Jan 2009 which superseded the previous licence |
|
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 The C&D material & general refuse generated by the Project in the reporting month are shown in Table 4‑2. A trip ticket system has been implemented for all off-site waste disposals. (It was recorded that no DCM or ACM was generated but 37.8365 m3 of DCM and 23.512 m3 of ACM were disposed in May 2009.)
Table
4‑2 Monthly Summary Waste Flow Table for 2009
|
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 ‘000 m3) |
|||||||||||
|
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
Est. |
Act. |
|
|
Jan |
0.95 |
0.269 |
- |
0 |
- |
0.269 |
- |
0 |
1.22 |
0 |
210 |
49.60 |
0.1 |
0 |
0.1 |
0 |
0.0922 |
0 |
0.05 |
0.018 |
|
Feb |
0.95 |
0 |
- |
0 |
- |
0 |
- |
0 |
0.95 |
0 |
210 |
155.14 |
0.1 |
0 |
0.1 |
0 |
0.0922 |
0 |
0.05 |
0.009 |
|
Mar |
0.95 |
0 |
- |
0 |
- |
0 |
- |
0 |
0.95 |
0 |
210 |
455.93 |
0.1 |
0.082 |
0.1 |
0 |
0.0922 |
0 |
0.05 |
0.018 |
|
Apr |
0.95 |
0 |
- |
0 |
- |
0 |
- |
0 |
0.95 |
0 |
210 |
299.97 |
0.1 |
0 |
0.1 |
0 |
0.0922 |
0 |
0.05 |
0.023 |
|
May |
0.95 |
2.277 |
- |
2.277 |
- |
0 |
- |
0 |
0.95 |
0 |
210 |
335.7 |
0.1 |
0 |
0.1 |
0 |
0.0922 |
0 |
0.05 |
0.045 |
|
Jun |
0.95 |
|
- |
|
- |
|
- |
|
0.95 |
|
210 |
|
0.1 |
|
0.1 |
|
0.0922 |
|
0.05 |
|
|
Sub-total |
5.7 |
|
- |
|
- |
|
- |
|
5.97 |
|
1260 |
|
0.6 |
|
0.6 |
|
0.5530 |
|
0.3 |
|
|
Jul |
0.95 |
|
- |
|
- |
|
- |
|
0.95 |
|
210 |
|
0.1 |
|
0.1 |
|
0.0922 |
|
0.05 |
|
|
Aug |
0.95 |
|
- |
|
- |
|
- |
|
0.95 |
|
210 |
|
0.1 |
|
0.1 |
|
0.0922 |
|
0.05 |
|
|
Sep |
0.95 |
|
- |
|
- |
|
- |
|
0.95 |
|
210 |
|
0.1 |
|
0.1 |
|
1.6222 |
|
0.05 |
|
|
Oct |
0.95 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
1.6222 |
|
0.05 |
|
|
Nov |
0.95 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
1.6222 |
|
0.05 |
|
|
Dec |
0.95 |
|
- |
|
- |
|
- |
|
0 |
|
0 |
|
0.1 |
|
0.1 |
|
1.6222 |
|
0.05 |
|
|
Total |
8.55 |
2.546 |
- |
2.277 |
- |
0.269 |
- |
0 |
8.82 |
0 |
1890 |
1296.3 |
1.2 |
0.082 |
1.2 |
0 |
7.6621 |
0 |
0.6 |
0.113 |
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 C.
5.1.1 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 14 May 2009 and additional weekly site inspections were carried out by the ER, Contractor and ET on 8, 21 and 27 May 2009.
5.1.2 Major findings provided by ET and those jointly provided by the ET and IEC on 14 May 2009 from the site inspection are summarised in Table 5‑1 below.
Table 5‑1 Summary of Environmental Site Inspections
|
Date of Inspection |
Major Observations |
Action(s) |
|
8 May 2009 |
General refuse was not cleared for a few days and raised concern. The
Contractor was reminded to collect general refuse frequently and maintain
good housekeeping. |
General refuse was still not cleared. The Contractor was reminded to
collect the debris on site frequently. The housekeeping needs to be improved.
|
|
|
As the area of demolition material stockpiled became larger, the
Contactor was recommended to provided sufficient dust suppression measure,
e.g. automatic sprinklers. Adequate dust suppression measures need to be
implemented during breaking of concrete wall. |
Water spraying to control dust was observed during site audit. The
Contractor was reminded to implement sufficient dust suppression measures
during breaking of concrete. |
|
14 May 2009 |
No new observation, except that the Contractor was reminded to clear
stagnant water regularly. |
To be reviewed regularly. |
|
21 May 2009 |
The Contractor was
reminded to clear stagnant water regularly, especially after heavy rain. |
To be reviewed regularly. |
|
|
The new EP (No.
EP-121/2002/A) should be posted at the site entrance as soon as possible. |
The new EP has been post at the site entrance. |
|
27 May 2009 |
Stagnant water was observed, after heavy rain last night. The
contractor was reminded to clear the ponding water regularly. |
To be reviewed regularly. |
5.2
Site Effluent Discharge/WPCO Effluent
Discharge
5.2.1 A WPCO effluent discharge licence was initially granted by EPD on 10 March 2008 and was subsequently replaced by another one issued on 8 July 2008. In order to cope with the site condition in late 2008, the Contractor has applied for a second variation of WPCO effluent discharge licence on 10 November 2008 and the licence was granted on 5 January 2009.
5.2.2 No effluent discharge sampling was carried out in this reporting month. It will be followed-up and updated in the coming EM&A report.
6.1 Summary of Environmental Complaints, Notifications of Summons and Successful Prosecutions
6.1.1 No environmental complaints have been received during the reporting month. Appendix C presents the environmental complaint event contingency plan of the Project and Table 6‑1 below presents a statistics of complaints, notification of summons and successful prosecution since the commencement of the Project.
Table 6‑1 Summary of Environmental Complaints
and Prosecutions
|
Complaints
Logged |
Summons
Served |
Successful
Prosecutions |
|||
|
May
2009 |
Cumulative |
May
2009 |
Cumulative |
May
2009 |
Cumulative |
|
0 |
0 |
0 |
0 |
0 |
0 |
6.1.2 No environmental complaint, notification of summons and prosecution has been received or made against the Project in this reporting month.
6.2.1 No environmental enquiries were received during the reporting month.
6.3.1 No unusual events were recorded during the reporting month.
6.4 Environmental Exceedance/ Non-compliance
6.4.1 The Event and Action Plan for air quality (dust) is presented in Appendix B.
Air Quality - Dust
6.4.2 No exceed of Action and Limit Levels for 1-hour TSP and 24-hour TSP was recorded in the reporting month.
Waste Management
6.4.3 Not applicable.
Summary of Exceedances
6.4.4 Table 6‑2 summarises the total number of exceedances for air quality recorded during the reporting period.
Table 6‑2 Summary of Exceedances
|
Parameters |
Total no. of
Measurements |
Action Level Exceedance |
% of Action Level Exceedance |
Limit Level Exceedance |
% of Limit Level Exceedance |
|
Air Quality |
20 |
0 |
0% |
0 |
0% |
6.4.5 No exceedance was recorded in the reporting period.
7.1 Key Issues and Recommendations for Coming Month
7.1.1 Key issues to be considered in the coming month include: -
·
Demolition of Incineration Plant;
·
Scaffolding erection inside chimney;
·
Sorting and disposal of C&D materials;
·
Disposal of asbestos contaminated materials (“ACM”)
and solidified dioxin/furan contaminated materials (“DCM”); and
·
Removal of ACM and DCM at the chimney.
7.1.2 Based on the above key issues, the recommended mitigation measures to be implemented include the following: -
Air
· Water spraying during demolition works;
· Covers for dusty stockpiles;
· Haul road watering and vehicle wheel wash prior to exit;
· All plant to be maintained to prevent any undue air emissions;
· Cover all generated C&D materials as soon as they are formed or moved.
Noise
· All plant shall be maintained to prevent any undue noise nuisance.
· Use quiet plants during demolition whenever possible.
· No construction activities during holidays.
· The outer walls for each part of the building should be demolished at last to facilitate the use of natural noise barrier.
Water
· All wheel wash water shall be diverted to a sediment pit before discharge;
· All fuel cans, generators shall be placed within a bunded area; and any fuel spills shall be mopped up or excavated and disposed of as necessary;
· All washout from concrete mixer shall be collected properly to avoid direct discharge.
· All ponding water shall be cleared as soon as possible.
Waste
· Different types of waste should be segregated, stored, transported and disposed of in accordance with the relevant legislative requirements and guidelines;
· Records of quantities of wastes generated, recycled and disposal (with locations) shall be kept.
Asbestos
· Removal, handling, transportation and disposal of the ACM in line with relevant regulations.
Dioxin
· Removal, handling, transportation and disposal of the DCM in line with relevant regulations.
8.1.1 EM&A was performed in May 2009 during which site works have continued. All monitoring and audit results in the reporting month were checked and reviewed.
8.1.2 With respect to audit observations, the Contractor was reminded to provide sufficient dust suppression measures during demolition works, including spraying of water. All mitigation measures in anti-mosquito, including clearing of stagnant water and application of mosquito larvae, should be implemented.
8.1.3 Airborne dust monitoring continued due to the demolition work during the reporting month. In general, the Contractor has been reasonably responsive to all required mitigation measures and ET’s recommendations made during weekly environmental site inspections in this reporting month.
8.1.4 No environmental complaints, notification summons or successful prosecutions have been received or made against this Project in this reporting month.
8.2.1 No further 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 |
179 |
260 |
Action and Limit Levels for 1-hour TSP
|
Monitoring Station |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
A1 |
345 |
500 |
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 |
Implementation Stage |
Relevant Guidelines
Legislation |
Implementation Status ^ |
|
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 |
P |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
P |
|
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 |
ü |
|
E |
Demolition Techniques |
Selection of non-blasting
demolition techniques to minimise noise and vibration. |
CEDD’s Contractor |
As above |
C |
8 |
ü |
|
F |
Plant maintenance |
All plant shall be
maintained to prevent any undue noise nuisance. |
CEDD’s Contractor |
As above |
C |
2, 3 |
ü |
|
G |
Wheel wash |
All wheel wash water shall
be diverted to a sediment pit. |
CEDD’s Contractor |
As above |
C |
5 |
P |
|
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 |
N/A |
|
I |
Surface water diversion |
All clean surface water
shall be diverted around the site. |
CEDD’s Contractor |
As above |
C |
5, 12 |
X |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
M |
Material containers |
All empty bags and
containers shall be collected for disposal. |
CEDD’s Contractor |
As above |
C |
6,7 |
ü |
|
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 |
ü |
|
O |
Neighbourhood nuisance |
All complaints regarding
construction works shall be relayed to the environmental team. |
CEDD’s Contractor |
As above |
C |
1, 6 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
ü |
|
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 |
N/A |
|
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 |
N/A |
|
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 |
N/A |
|
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 |
ü |
* 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)
^ Implementation Status:
ü implemented
Ï not implemented
P partially
implemented
X rectified by Contractor
N/A not applicable
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
