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 July 2008 Rev A
Report No.: 203204/KCIP/EM&A/8/A
August 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 (Jul 2008) 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
Connell Ltd.
Date 14
August 2008
Verified by:
Independent
Environmental Checker (IEC)
Hyder
Consulting Limited
Date 14
August 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. AUDIT FINDINGS 5-1
5.1 Site Environmental Audit................................................................................. 5-1
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
6.2 Environmental Enquires................................................................................... 6-1
6.3 Environmental Events..................................................................................... 6-1
6.4 Environmental Exceedance/ Non-compliance................................................... 6-1
7. future key issues 7-1
7.1 Key Issues and
Recommendations for Coming Month....................................... 7-1
8. conclusion and recommendation 8-1
8.1 Conclusions.................................................................................................... 8-1
8.2 Recommendations.......................................................................................... 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
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 Site Inspections.............................................. 5-1
Table 6‑1............ Summary of
Environmental Complaints and Prosecutions........................ 6-1
Table 6‑2............ Summary of Exceedances.......................................................................... 6-1
Table B‑1............ Event and Action
Plan for Air Quality........................................................... B1
Table C‑2........... Implementation
Schedule of Recommended Mitigation Measures From the EIA C1
Table C‑3........... Event
Contingency Plan for Environmental Complaints.............................. C5
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 July 2008.
This is the 8th Monthly EM&A Report for the works carried out during the reporting month.
The following construction activities have taken place during the reporting month: -
· Maintaining cleanliness and tidiness of site areas;
· Erection of bamboo scaffolding and removal of ACM weather cladding from building of Incineration Plant;
· Preparation and erection of full containment for removal of asbestos flexible joints and gaskets from vent ducts in base of chimney;
· Preparation for collection of ash samples and pilot tests;
· Erection of Contractor’s site office in Portion B.
· No removal works for and dioxin/ furan contaminated materials (“DCM”) have been carried out.
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 3, 10, 16, 24 & 31 Jul 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: -
· ACM removal works;
· Preparation works for DCM removal works;
· Pilot test for DCM removal;
· Barging Point Erection;
· Disposal of ACM.
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 July 2008.
1.2.2 This is the 8th 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: -
· Maintaining cleanliness and tidiness of site areas;
· Erection of bamboo scaffolding and removal of ACM weather cladding from building of Incineration Plant;
· Preparation and erection of full containment for removal of asbestos flexible joints and gaskets from vent ducts in base of chimney;
· Preparation for collection of ash samples and pilot tests;
· Erection of Contractor’s site office in Portion B.
· No removal works for 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 2.1.
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 3, 10, 16, 24 & 31 Jul 2008 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.
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 |
Latest Calibration Date |
High Volume Sampler Greasby GMWS 2310 Accu-vol system |
Every two months |
5 Jul 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 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 |
133-300 |
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 |
1-hour |
Action Level (µg/m3) |
Limit Level (µg/m3) |
A1 |
50-81 |
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 16 Jul 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 4‑1 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 |
v2.3 submitted on 25 Jun 2008 (Approved on 25 Jul 2008) |
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 25 March 2008 (Approved on 8 Nov 2007) |
Valid |
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 material, except general refuse, was generated by the Project in the reporting month, as shown in Table 4‑2. A trip ticket system has been implemented for all off-site waste disposals. (Note that 65.6853m3 of ACM has been generated from the site but was stored on site in July 2008.)
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 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.125 |
0 |
June |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0.056 |
0 |
8.1 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.125 |
0.034 |
Sub-total |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0.056 |
0 |
8.1 |
0.6 |
0 |
0.6 |
0 |
0 |
0 |
1.000 |
0.394 |
Jul |
0 |
0 |
- |
0 |
- |
0 |
- |
0 |
0 |
0 |
0 |
0 |
0.1 |
0 |
0.1 |
0 |
0 |
0 |
0.125 |
0.009 |
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 |
- |
0 |
- |
0 |
0 |
0.056 |
0 |
8.1 |
1.2 |
0 |
1.2 |
0 |
600 |
0 |
1.750 |
0.403 |
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 16 July 2008 and additional weekly site inspections were carried out by the ER, Contractor and ET on 3, 10, 16, 24 & 31 Jul 2008.
5.1.2 Major findings provided by ET and those jointly provided by the ET and IEC on 16 July 2008 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) |
3 July 2008 |
No observation was made. |
- |
10 July 2008 |
No observation was made. |
- |
16 July 2008 |
The contractor is reminded to keep
clearing stagnant water after rain during the raining period to prevent
breeding of mosquito. Useful materials such as paints were
observed in the chemical waste storage room. It is suggested that these materials
should be removed from the room and separately stored. All chemical waste
containers should be properly labelled in accordance with EPD’s guidelines. |
Stagnant
water was cleared. Chemicals which were not waste materials were removed from
the chemical waste storage room. |
24 July 2008 |
No observation was made. |
- |
31 July 2008 |
The contractor is reminded to maintain
good housekeeping, especially when construction materials (e.g. bamboo) are removed
from the storage area and rubbish is left behind. The sedimentation tank to the stormwater
drains should be properly covered. |
Rubbish
was removed. The
sedimentation tank has been covered. |
5.2
Site Effluent Discharge/WPCO Effluent Discharge
5.2.1 A WPCO effluent discharge licence was granted by EPD on 10 March 2008 and subsequently the Contractor has applied for variation of licence conditions on 15 March 2008. EPD has granted the new discharge licence on 8 July 2008. The foul water from toilets of Contractor’s & Engineer’s site offices in Portion B would be temporarily stored in storage tank and then collected and disposed by a sewage collector.
5.2.2 No discharge sampling was carried out in this reporting month as there was no effluent discharge. Sampling will be carried out by the contractor in the coming months.
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 |
|||
July
2008 |
Cumulative |
July
2008 |
Cumulative |
July
2008 |
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 exceedance of the Action and Limit Levels for 1-hour and 24-hour TSP was recorded.
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 valid 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: -
1. ACM removal works;
2. Preparation works for DCM removal works;
3. Pilot test for DCM removal;
4. Barging Point Erection;
5. Disposal of ACM.
7.1.2 Based on the above key issues, the recommended mitigation measures to be implemented include the following: -
Air
· Covers for dusty stockpiles and control of dust emissions from construction (demolition) works;
· Haul road watering and vehicle wheel wash prior to exit;
· All plant to be maintained to prevent any undue air emissions.
Noise
· All plant shall be maintained to prevent any undue noise nuisance.
Water
· All wheel wash water shall be diverted to a sediment pit before discharge;
· Stagnant water shall be cleared quickly after rain;
· 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.
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 July 2008 during which some site works have continued. All monitoring and audit results in the reporting month were checked and reviewed.
8.1.2 Airborne dust monitoring continued due to the demolition work during the reporting month. Also, ACM removal was carried out. 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.
8.1.3 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.
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 |
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
Appendix D EM&A Schedule
Appendix E Air Quality Monitoring Results and
Graphical Presentation