Civil
Engineering and Development Department
Fill Management
Division
5/F, Civil
Engineering and
Homantin,
Demolition of Kwai Chung
Incineration Plant
Environmental Permit No.
EP-121/2002
Monthly EM&A Report for Dec 2007 Rev A
Report No.: 203204/KCIP/EM&A/1/A
January 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.
Pursuant to Condition 2.3 and 3.5 of the Environmental Permit
EP-121/2002
This
Monthly EM&A Report (Dec 2007) 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 January
2007
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
Action Plan........................................................................................... 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.............................................................................. 4-1
4.4 Review
of Environmental Monitoring Procedures.............................................. 4-1
4.5 Implementation
Status of Environmental Mitigation Measures............................ 4-1
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
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............ Monthly Summary Waste Flow Table for 2007........................................... 3-4
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 Environmental Site Inspections.............................................. 5-2
Table B‑1............ Event/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 December 2007.
This is the 1st 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 the RE’s office at Portion B;
· Erection of site fencing & construction of an internal access road and run-in in Portion B;
· Disposal of general refuse to SENT Landfill; and
· No removal work for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) has been carried out.
As no dusty activities have been conducted on-site, no dust monitoring has been undertaken. In general, the Contractor is preparing to implement the 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.
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 11, 20 and 27 Dec 2007.
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 coming month include: -
· Confirmation of date of hoarding erection so that air quality (dust) monitoring will commence.
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 1.1.
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 Dec 2007.
1.2.2 This is the 1st 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 construction activities have taken place during the reporting month: -
· Erection of the RE’s office at Portion B;
· Erection of site fencing & construction of an internal access road and run-in in Portion B;
· Disposal of general refuse to SENT Landfill; and
· No removal work for asbestos containing materials (“ACM”) and dioxin/ furan contaminated materials (“DCM”) has been carried out.
1.5.2 The above activities involved mainly manual woks and did not require the use of large machineries. They are in general not dusty and noisy.
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 2.1.
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 |
||||
Waste Water |
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/ 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 11, 20 and 27 Dec 2007 in this reporting month to assess the compliance with environmental requirements. The EM&A schedule is given in Appendix D.
3.1.2 However, no air quality monitoring was conducted because of insignificant site works undertaken during this 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 However, no dust monitoring was carried out because of absence of dusty activities. As per the approved EM&A Manual, dust monitoring stations are located as shown in Figure 2.1.
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 |
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 |
Latest Calibration Date |
High Volume Sampler GMWS 2310 Accu-vol system |
Every two months |
10 Sep 2007 * |
1-hour TSP Dust
Meter 8520 Dust Track Aerosol Monitor |
Every year |
28 Sep 2007 |
* No
dust monitoring was carried out in the reporting month. An updated calibration
certificate will be provided when dusty activities commence.
3.5 Results of Impact Monitoring
Air Quality Monitoring Results
3.5.1 No air quality monitoring results collected for this reporting month.
Waste Management
Table 3‑3 Monthly Summary Waste Flow Table for 2007
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
‘000 tons) |
(In
‘000 tons) |
(In
‘000 tons) |
(In
‘000 tons) |
(In
‘000 tons) |
(In
‘000 kg) |
(In
‘000 kg) |
(In
‘000 kg) |
(In
‘000 kg) |
(In
‘000 tons) |
|||||||||||
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
Est.
|
Act. |
|
Jan |
|
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Feb |
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Mar |
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Apr |
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May |
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June |
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Sub-total |
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Jul |
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Aug |
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Sep |
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|
|
|
|
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|
|
|
|
|
|
|
|
|
Oct |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Nov |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Dec |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0.135 |
Total |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0.135 |
4.1.1 One environmental meeting was held on the day of the monthly site inspection on 11 Dec 2007.
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) |
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 |
New submissions |
|||
3. |
Waste Management Plan |
29 Nov 2007 |
Pending EPD’s approval |
4. |
Chemical Waste Producer (Ref. No.: WPN-5292-320-C3459-01) |
2 Nov 2007 |
Approved by EPD on 26 Nov 2007 |
5. |
Effluent Discharge Licence |
8 Nov 2007 |
Pending EPD’s approval |
4.3.1 No C&D materials except general refuse were generated by the Project in the reporting month, as shown in Table 3‑3. 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 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. 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 C 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 Prosecution |
|||
Dec 2007 |
Cumulative |
Dec 2007 |
Cumulative |
Dec 2007 |
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 B. No exceedance of Action and Limit Levels for 1-hour and 24-hour TSP and noise levels was recorded in the month as no air quality monitoring was conducted in this reporting month.
Air Quality - Dust
5.4.2 Not applicable. No dust monitoring was undertaken during this reporting month.
Waste Management
5.4.3 Not applicable.
Site Environmental Audit
5.4.4 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, ET and IEC on 11 Dec 2007 and additional weekly site inspections were carried out by the ER, Contractor and ET on 20 and 27 Dec 2007.
5.4.5 Major findings provided by ET and those jointly provided by the ET and IEC on 11 Dec 2007 from the site inspection are summarised in Table 5‑2 below.
Table 5‑2 Summary of Environmental Site Inspections
Date of Inspection |
Major Observations |
Action(s) |
11 December 2007 |
One hose observed connecting the ash bunker to a nearby manhole. This should be removed to avoid draining the potential dioxin contaminated water. |
Hose connected to the ash bunker has been removed. |
20 December 2007 |
The Contractor was advised to ensure that waste items produced during erection works for the Project office at Portion B do not enter the adjacent open waters. |
Rubbish bins and bags were provided for waste items for Project office works at Portion B. |
27 December 2007 |
A stockpile of dusty materials was at risk of being dispersed by strong winds. The Contractor was reminded to provide suitable mitigation measures as soon as possible. |
Tarpaulin covering was provided for a stockpile of dusty materials. |
A damaged sandbag at a site boundary was observed. The Contractor was advised to remove or replace the sandbag as soon as possible. |
The damaged sandbag at a site boundary was removed. |
5.4.6 No non-compliances with regard to site environmental audit were observed 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 and covered walkway;
2. Preparation works for asbestos and dioxin removal works;
3. General site clearance;
4. Existing trees felling after the tree survey report;
5. Erection of the temporary accommodation for the Engineer at Portion B;
6. Repair of ground cracks; and
7. Additional baseline monitoring of dust, noise, fibre and dioxin required only under the Contract but not under the EM&A Manual.
7.1.1 EM&A was performed in Dec 2007 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 As no asbestos/ dioxin abatement, dusty or noisy activities have been undertaken on-site, no dust monitoring 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/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
Not Applicable for this Reporting Month