Agreement No. CE 26/2022 (EP) Development of Integrated Waste Management Facilities Phase 2 (I∙PARK2)
Environmental Monitoring and Audit Manual
Contents
1.2 Project Scope and Location
2.2 Construction Dust Monitoring during Construction Phase
2.3 Monitoring during Operational Phase
4.7 Laboratory Measurement / Analysis
4.9 Construction Phase Impact and Post-construction Monitoring
4.10 Operational Phase Impact Monitoring
5 Waste Management Implications
6.3 Monitoring Audit Requirements
8.5 Construction and Operational Phase Audit
9.2 Monitoring of Radon Concentration
9.3 Contingency Plan for Potential Accidental Events
10.3 Monitoring and Measurement of Landfill Gas
11 Site Environmental Audit & Environmental Complaints
11.2 Compliance with Legal and Contractual Requirements
12.2 Baseline Monitoring Report(s)
12.3 EM&A Reports for Construction Phase
12.4 EM&A Reports for Operational Phase
12.6 Interim Notifications of Environmental Quality Limit Exceedances
List of Tables
Table 2‑1 Proposed Dust Monitoring Stations during Construction Phase
Table 2‑2 Construction Dust Monitoring Programme
Table 2-3 Action and Limit Levels for Construction Dust Monitoring
Table 2-4 Action and Limit Plan for Construction Dust Monitoring
Table 2‑5 Analytical Parameters and Methodology
Table 2‑6 Odour Intensity Level
Table 2‑7 Action and Limit Levels for Odour Nuisance
Table 2‑8 Event and Action Plan for Odour Patrol
Table 4‑1 Proposed Marine Water Quality Monitoring Stations for All Monitoring Stages
Table 4‑2 Proposed Marine Water Quality Monitoring Parameters for Different Monitoring Stages
Table 4-3 Analytical Methods to be Applied to Water Quality Samples
Table 4-4 Summary of Baseline Marine Water Quality Monitoring
Table 4-6 Summary of Operational Stage Marine Water Quality Monitoring
Table 4-7 Action and Limit Levels for Water Quality
Table 4-8 Event and Action Plan for Construction and Operational Stage Water Quality
Table 5‑1 Incineration Residue Pollution Control Limits
Table 8‑1 Proposed Mitigation Measures for Operational Phase
Table 9-1 Potential Accidental Events and Preventive Measures
Table 10‑1 Actions in the Event of Gas Being Detected
List of Figures
List of Appendices
1.2 Project Scope and Location
The Project comprises the construction and operation of I∙PARK2 which will have a design treatment capacity sufficient to handle around 6 000 tonnes per day (tpd) of Municipal Solid Waste (MSW). The Project will adopt state-of-the-art incineration technology to substantially reduce the bulk size of waste. The energy from waste incineration will be recovered for electricity generation. Apart from meeting the electricity demand of the facility, the surplus electricity from the Project will be exported to the public power grid, thereby boosting up the portion of electricity generation from waste-to-energy (WtE) source. Moreover, appropriate community amenities will be integrated into the Project for public enjoyment.
The Project would comprise the following key facilities:
n MSW reception, storage and feeding system.
n Berthing area for marine vessels (include marine works).
n Incineration furnace and boiler system.
n Steam turbine generator, steam utilisation, cooling system and condensate recovery system.
n Power export/import system for plant electricity supply and connecting to public power grids (e.g. CLPs grid) at 132kV voltage level.
n Flue gas treatment, flue ducts and continuous emission monitoring system.
n Reagent reception and storage system.
n Ash and residues storage, handling and treatment system.
n Process control and monitoring system.
n Water treatment facilities.
n Wastewater treatment facilities.
Design-Build-Operate (DBO) contract arrangement would be adopted for the Project. Under this contract arrangement, a DBO Contractor (hereafter referred to I∙PARK2 Contractor) would be engaged to conduct the detailed design, construction and operation of the I∙PARK2.
The Project site is located in the eastern portion of Tsang Tsui Middle Ash Lagoon (TTMAL) at Nim Wan, Tuen Mun. The Project location plan is shown in Figure 1.1.
1.3 Project Programme
The construction of I∙PARK2 is tentatively scheduled to commence in 2026 for completion in early 2030s. The land-based construction and marine-based construction of the Project would be carried out concurrently to shorten the total duration of construction period and facilitate early completion of the Project. I∙PARK2 is expected to be commissioned in early 2030s.
1.4 Purpose of the Manual
This Environmental Monitoring and Audit (EM&A) Manual is prepared to guide the set-up of an EM&A programme for I∙PARK2 with the aims to:
n ensure compliance with the recommendations of the EIA study;
n assess the effectiveness of the recommended mitigation measures; and
n identify any further need for additional mitigation measures or remedial action.
This Manual outlines the monitoring and audit requirements for the construction and operational phases of the I∙PARK2 and provides systematic procedures for monitoring, auditing and minimizing environmental impacts.
1.5 Scope of the Manual
Hong Kong environmental regulations and the Hong Kong Planning Standards and Guidelines (HKPSG) have served as environmental standards and guidelines in the preparation of this Manual. In addition, the EM&A Manual has been prepared in accordance with the requirements stipulated in Annex 21 of the Technical Memorandum on the EIA Process (EIAO-TM). This Manual contains the following information:
n Responsibilities of the I∙PARK2 Contractor, the Engineer or Engineers Representative (ER), Environmental Team (ET), and the Independent Environmental Checker (IEC) under the context of EM&A.
n Project organization for the EM&A works.
n An implementation schedule, summarizing all recommended environmental mitigation measures with reference to the programme for their implementation including those identified at detailed design, contract preparation, construction and operation stages of the Project.
n The basis for, and description of the broad approach underlying the EM&A programme.
n EM&A methodologies to be adopted, including all laboratories and analytical procedures, equipment to be used and details on quality assurance and quality control programme.
n Definition of environmental quality performance limits (i.e. action and limit levels).
n Establishment of Event and Action Plans.
n Requirements for reviewing pollution sources and working procedures required in the event of non-compliance with the environmental criteria and complaints.
n Requirements for presentation of environmental monitoring and audit data and appropriate reporting procedures.
The roles and responsibilities of the various parties involved in the construction phase and operational phase of the EM&A process and the implementation of the EM&A programme are outlined below.
The proposed Project organization and lines of communication for the EM&A and environmental protection works during the construction and operational phases are shown in Appendix 1.1.
The Engineer or Engineers Representative (ER) refers to the organization responsible for overseeing the construction works of the Project undertaken by the I∙PARK2 Contractor, and for ensuring that the works are undertaken in accordance with the specification and contractual requirements. The responsibilities of the ER include the followings:
n Monitor the I∙PARK2 Contractors compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and ensure their effectiveness, and other aspects of the EM&A programme.
n Monitor the I∙PARK2 Contractors, the ETs compliance with the requirements in the Environmental Permit (EP), EIA report and EM&A Manual.
n Provide assistance to the ET as necessary in the implementation of the EM&A programme.
n Participate in joint site inspection undertaken by the ET.
n Comply with the agreed Event / Action Plan in the event of any exceedance.
n Adhere to the procedures for carrying out complaint investigation.
The term I∙PARK2 Contractor should be taken to mean the contractor working for the I∙PARK2 project. Besides reporting to the ER, the I∙PARK2 Contractor should also be responsible for the following tasks:
n Work within the scope of the relevant contract and other tender conditions.
n Implement the recommendations and requirements of EIA, EP and EM&A Manual.
n Provide assistance to the ET in setting up the monitoring stations and carrying out monitoring and audit where necessary.
n Participate in the site inspections undertaken by the ET as required and undertake any corrective actions.
n Provide information / advice to the ET regarding works activities which may contribute, or be continuing to the generation of adverse environmental conditions.
n Submit proposals on mitigation measures in case of exceedances of action or limit levels in accordance with the event / action plans.
n Implement measures to reduce impact where action or limit levels are exceeded.
n Adhere to the procedures for carrying out complaint investigation.
Only one Environmental Team (ET) with an ET Leader shall be appointed by the I∙PARK2 Contractor and engaged for the Project at any time. The ET shall conduct the EM&A programme and ensure the I∙PARK2 Contractors compliance with the Projects environmental performance requirements. The ET shall not be in any way an associated body of the ER, I∙PARK2 Contractor or the IEC for the Project.
The ET shall be led and managed by an ET leader. The ET leader shall possess at least 7 years of experience in EM&A and/or environmental management. At any one time, the ET Leader, or an ET Leader representative who shall be a member of the ET with at least 5 years of experience in EM&A or environmental management, shall work full time on-site during construction phase of the Project. Suitably qualified staff should be included in the ET, and resources for the implementation of the EM&A programme should be allocated in time under the Contract, to enable fulfilment of the Projects EM&A requirements as specified in the EM&A Manual. The ET shall report to the ER and the duties of ET shall include the followings:
n Monitor and audit various environmental parameters as required in this EM&A Manual.
n Analyse the EM&A data and review the success of EM&A programme to cost-effectively confirm the adequacy of mitigation measures implemented and the validity of the EIA predictions, and to identify any adverse environmental impacts arising.
n Carry out regular site inspection to investigate and audit the I∙PARK2 Contractors site practice, equipment and work methodologies with respect to pollution control and environmental mitigation, and effect proactive action to pre-empt problems, and carry out ad-hoc site inspections if significant environmental problems are identified.
n Monitor compliance with requirements in the EP and EIA report, environmental protection, pollution prevention and control regulations and contract specifications.
n Audit environmental monitoring data and site environmental conditions.
n Report on the EM&A results to Environmental Assessment Division (EAD) of EPD, ER, IEC and I∙PARK2 Contractor or their delegated representatives.
n Recommend suitable mitigation measures to the I∙PARK2 Contractor in the case of exceedance of action or limit levels in accordance with the event and action plans.
n Liaise with the IEC on all environmental performance matters and timely submit all relevant EM&A proforma for approval by the IEC.
n Advise the I∙PARK2 Contractor on environmental improvement, awareness, enhancement matters, etc. on site.
n Adhere to the procedures for carrying out complaint investigation.
n Review and certify any submissions required in the EP as necessary.
n Timely submit the EM&A Reports to EAD of EPD.
Sufficient and suitably qualified professional and technical staff should be employed by the ET to ensure full compliance with their duties and responsibilities, as required under the EM&A programme.
An Independent Environmental Checker (IEC) with a supporting team shall be directly employed by the Project Proponent (WID) for the Project at any time. The IEC shall audit the overall EM&A programme, including the implementation of all environmental mitigation measures, submissions required in this Manual, as well as any other relevant submissions required under the EP. The IEC shall not be in any way an associated body of the ER, I∙PARK2 Contractor and the ET for the Project.
The IEC shall possess at least 7 years of experience in EM&A and/or environmental management. At any one time. the IEC, or an IEC representative who shall be a person with at least 5 years of experience in EM&A or environmental management, shall work full time on-site during construction phase of the Project. The IEC shall report directly to the EAD of EPD on matters relating to the EM&A programme and environmental impacts from the Project. The responsibilities of the IEC should include the followings:
n Provide proactive advice to the ER and ET on environmental matters.
n Review and audit all aspects of the EM&A programme, including the implementation of environmental mitigation measures and overall environmental performance of the Project.
n Review and verify the monitoring data and all submissions required under the EM&A programme submitted by the ET, including but not limited to the EM&A reports as well as the submissions required under the EP.
n Review the EM&A works performed by the ET and audit the ETs monitoring activities and results (at not less than monthly interval) including the validation and confirmation on the accuracy of monitoring results, equipment, locations and procedures etc.
n Arrange and conduct regular site inspections of the works during construction phase (at not less than monthly interval), and ad-hoc inspections if significant environmental problems are identified.
n Comply with the agreed event / action plan in the event of any exceedance.
n Check and ensure the procedures for carrying out complaint investigation being followed and check the effectiveness of corrective measures.
n Feedback audit results and other environmental performance review findings to ER and EAD of EPD.
n Report the works conducted, the findings, recommendation and improvement of the site inspections, the findings, recommendation, and improvement after reviewing the ETs and the I∙PARK2 Contractors works, and any advices to the ER and EAD of EPD on a monthly basis.
1.7 Structure of this Manual
Following this introductory section, the structure of the EM&A Manual is set out below:
Sections 2 presents the EM&A requirements on air quality.
Sections 3 presents the EM&A requirements on noise.
Sections 4 presents the EM&A requirements on water quality.
Sections 5 presents the EM&A requirements on waste management implication.
Sections 6 presents the EM&A requirements on ecology.
Sections 7 presents the EM&A requirements on fisheries.
Sections 8 presents the EM&A requirements on visual aspect.
Sections 9 presents the EM&A requirements on health impact.
Section 10 presents the EM&A requirements on landfill gas hazards.
Section 11 details the requirements on site environmental audit and the environmental complaints handling procedure.
Section 12 details the EM&A reporting requirements.
2 Air Quality
This section presents the requirements, methodology, equipment, criteria and protocols for the monitoring and audit of air quality impacts during construction and operational phases of the Project.
The objectives of the air quality monitoring include the following:
to identify the extent of construction dust and operational air quality and odour impacts;
to determine the effectiveness of mitigation measures to control dust emission from activities during construction phase and odour control measures during operational phase;
to recommend further mitigation measures if found to be necessary; and
to comply with action and limit levels for air quality as defined in this Manual.
2.2 Construction Dust Monitoring during Construction Phase
The proposed construction dust monitoring stations are listed in Table 2-1 and their locations are shown in Figure 2.1.
Table 2‑1 Proposed Dust Monitoring Stations during Construction Phase
|
Station |
Description |
Easting |
Northing |
Tentative Duration * |
|
AM1 |
Construction site boundary close to T∙Park |
810227 |
831397 |
2026 to early 2030s |
|
AM2 |
Construction site boundary close to Tsang Tsui Columbarium |
809767 |
831324 |
2026 to early 2030s |
|
AM3 |
South-western side of the Construction site boundary |
809855 |
831103 |
2026 to early 2030s |
* Construction duration is indicative for reference only and will be subject to the actual progress of the construction works.
Construction dust monitoring at AM1, AM2 and AM3 is recommended during the construction work of this Project. Any change to the locations of monitoring stations shall be justified by the ET Leader, agreed by the ER, verified by the IEC before seeking approval from EAD of EPD prior to the commencement of the monitoring.
The ET shall agree with IEC on the position of the monitoring equipment. When positioning the monitoring equipment, the following points should be noted:
a horizontal platform with appropriate support to secure the monitoring equipment against gusty wind should be provided;
general housekeeping, cleaning works and other preventative maintenance activities such as checking the operating status of individual monitoring equipment should be carried out to ensure the proper operation of the system;
the distance between the monitoring equipment and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the monitoring equipment including the air sensor;
a minimum of 2m separation from walls, parapets and penthouses is required for monitoring equipment at rooftop;
a minimum of 2m separation from any supporting structure, measures horizontally is required;
no furnace or incinerator flue is located near the monitoring equipment;
airflow around the monitoring equipment is unrestricted;
the monitoring equipment is more than 20m from the dripline;
any wire fence and gate to protect the monitoring equipment, should not cause any obstruction during monitoring;
permission must be obtained to set up the monitoring equipment and to obtain access to the monitoring stations; and
a secured supply of electricity is needed to operate the monitoring equipment.
Parameters including RSP and FSP should be monitored continuously. For regulatory purpose, the RSP and FSP levels should be measured by the mean of air sensor such that variation in dust impact on a real-time basis could be readily detected and timely action could be undertaken.
Sensors to be employed should meet the purpose of monitoring 1-hour RSP, 24-hour RSP and 24-hour FSP concentrations in the ambient air. It should be capable of detection of PM10 and PM2.5. Particulates is typically measured using an optical approach where light scattered by a particle is used to estimate the particle mass concentration. The measurement range and detection limit of the air sensor should be able to measure the full range of particulates commonly found in the ambient, e.g. 0-1000 mg/m3. The accuracy of a sensor, in terms of precision and bias, should also be evaluated during selection of air sensor, according to the manufacturers specification, evaluation reports and published literature. Whether the air sensor has calibrated upon purchase, when and how collocation should be performed and how to correct the measurement should be consulted with the sensor manufacturer and fully understood before the air monitoring. Other factors, such as response time, durability, enclosure, ease of use, power supply, any data display, data transmission, data access, data handling and cost should also be considered when selecting air sensor. The best practices and recommendations in The Enhanced Air Sensor Guidebook (USEPA, 2022), USEPAs Air Sensor Toolbox website or equivalent should be followed.
The ET shall be responsible for the provision of the monitoring equipment. The ET should propose and seek approval from IEC on the number of sensors and instrument model for carrying out the continuous impact monitoring, and ad-hoc monitoring. The sensors shall be calibrated against a Transfer Standard (TS) at regular intervals, in accordance with requirements stated in the manufacturers operating manual.
Initial calibration of the dust monitoring equipment shall be conducted upon installation and prior to commissioning. The calibration data shall be properly documented for future reference by the concerned parties such as the IEC. All the data shall be converted into standard temperature and pressure conditions.
Generally, air sensor should be placed at least 1.5 metres above ground, and away from any obstruction, vegetation or emission source which would interfere with the measurement. Other factors of the monitoring location, such as security, availability of power supply, reliable communication (cellular, Wi-Fi, etc.), should also be considered.
To ensure accuracy of the measurements, the ET should calibrate the monitoring equipment including the air sensors regularly following the requirements specified by the equipment manufacturers. The performance of sensor shall be checked by a collocation process in which the TS should be placed near the sensor and operating them simultaneously under the same conditions. The TS is another particulate matter (PM) monitor that is at least as capable as the air sensor to be calibrated. Another sensor that has just been calibrated may serve the purpose provided its performance is known to be stable during the subsequent collocation period to be used as TS.
Right before each on-site calibration, the TS itself needs to be calibrated e.g. collocating with an PM reference monitor, such as the Federal Reference Method (FRM) or the Federal Equivalent Method (FEM) PM monitor at the accredited laboratories or research institutes, that has been calibrated against traceable standard. The collocation of TS with the PM reference monitor should last at least seven days.
The TS with known performance characteristics will be placed next to each air sensor on the field for collocation. During collocation, the TS should be placed near the subject sensor (<1m if practicable) so that both devices would be monitoring under the same environment, i.e. the same pollution sources and weather conditions. The TS should be first warmed up for 30-60 minutes and then left running with the subject sensor for the collocation period (at least three hours). The measurements from the subject sensor and TS during the collocation period will be statistically analysed.
The response of the sensor should be adjusted if its performance during on-site calibration does not meet the following evaluation criteria. For each device, data below its detection limit will be excluded.
Tier 1: Correlation
The minute average measurements from the two devices when subject to linear regression should have a coefficient of determination (R2)>0.7. The regression line slope should be between 0.75 to 1.25. If these criteria are not met due to narrow range of PM concentration (>30 mg/m3 and >25 mg/m3 as recommended span range for RSP and FSP, respectively) during the collocation period, Tier 2 will apply.
Tier 2: Root Mean Squared Error
The root mean squared error of the sensor minute average measurements should be <8 mg/m3 for RSP and <5 mg/m3 for FSP.
On-site checking of the monitoring equipment should be conducted by ET. The collocation of TS and each air sensor on the field should be carried out at regular intervals in accordance with requirements stated in the manufacturers operating manual and at least every month. If a sensor repeatedly failed in 2 or 3 consecutive collocations, the sensor should be checked or maintained to improve its performance, or it should be replaced.
Wind data monitoring equipment should also be provided and set up at conspicuous locations for logging wind speed and wind direction near to the dust monitoring locations. The equipment installation location should be proposed by the ET and agreed with the ER and the IEC. For installation and operation of wind data monitoring equipment, the following points should be observed.
The wind sensors should be installed on masts at an elevated level 10m above ground so that they are clear of obstructions or turbulence caused by the buildings;
The wind data should be captured by a data logger. The data recorded in the data logger shall be downloaded periodically for analysis at least once a month;
The wind data monitoring equipment should be re-calibrated at least once every six months; and
Wind direction should be divided into 16 sectors of 22.5 degrees each.
Before commencing the construction dust monitoring, the ET should formulate a construction dust monitoring plan with air sensor and submit to IEC to seek their feedback and consent. The plan should be certified by the ET leader and verified by IEC as confirming to the EM&A Manual. The plan should include but not limited to the followings:
Details on the pollutants and environmental parameters to be monitored;
Describe the equipment and measurement method to be used;
Address the criteria for placing air sensors;
Discuss the monitoring locations selected and rationale;
Describe the criteria for selecting air sensors and test to determine if they are working properly;
Determine the collocation location and establish the calibration and/or collocation and data correction methods;
Identify types of data that may be used in the data analysis, including nearby reference monitor data, weather data, etc.
List the procedures to maintain and operate air sensors, including site visits, routine maintenance, emergency maintenance, daily data review, periodic collocations, etc.;
Describe the QC procedures to be performed;
Describe how the data are processed, stored and adjusted;
Describe the ownership of the data and who is granted access to it;
Describe how the air monitoring data to be managed, tracing the path of data generation in the field to the final data use and end storage;
Describe the procedures to verify and validate data during collection period;
Describe the methods to produce meaningful figures and visualization;
Describe how the monitoring results will be used.
If the ET proposes alternative dust monitoring equipment / methodology or alternative methods to obtain representative wind data, agreement from the ER and IEC should be sought. The instrument should also be calibrated regularly following the requirements specified by the equipment manufacturers.
During the construction work of the I∙PARK2, hourly impact monitoring should be undertaken continuously with air sensor networks at the designated monitoring stations. The hourly averaged RSP and daily averages of RSP and FSP are to be determined and reported in monthly EM&A Report. The impact monitoring programme is summarised in Table 2-2.
The monthly collocation schedule should be drawn up by the ET one month prior to the commencement of the scheduled construction period. Before commencement of the collocation, the ET should inform the IEC such that the IEC can conduct an on-site audit. If the monitoring data collected at the designated stations indicate that the Action or Limit Levels as shown in Table 2-3 are exceeded, appropriate actions should be taken in accordance with the Event and Action Plan in Table 2-4.
Table 2‑2 Construction Dust Monitoring Programme
|
Activities |
Monitoring Frequency |
Key Parameters |
Monitoring Location |
|
During construction |
Continuous |
1-hour RSP, |
AM1, AM2, AM3 |
Implementation of regular site audits is to ensure that the recommended mitigation measures are to be properly undertaken during proposed construction works. It can also provide an effective control of any malpractices and therefore achieve continual improvement of environmental performance on site.
Site audits shall be carried out by the ET and shall be based on the mitigation measures for air quality pollution control recommended in the implementation schedule as presented in Appendix 11.1 and air quality mitigation measures stipulated in Air Pollution Control (Construction Dust) Regulation. In the event that the recommended mitigation measures are not properly implemented, deficiency shall be recorded and reported to the site management. Suitable actions are to be carried out to:
investigate the problems and the causes;
issue action notes to the I∙PARK2 Contractor who is responsible for the works;
implement remedial and corrective actions immediately;
re-inspect the site conditions upon completion of the remedial and corrective actions; and
record the event and discuss with the I∙PARK2 Contractor for preventive actions.
The action and limit levels for construction dust monitoring are shown in Table 2-3. The action and limit levels may be subject to changes based on the prevailing AQOs implemented at the time of the impact monitoring. These criteria should be applied to ensure that any deterioration of air quality is readily detected, and timely action is taken to rectify the situation. Should the monitoring results at any designated monitoring station exceed the action or limit levels, the actions in accordance with the Event and Action Plan summarized in Table 2-4 shall be carried out.
Table 2-3 Action and Limit Levels for Construction Dust Monitoring
|
Parameters |
Action |
Limit |
|
1-hour RSP Level |
150 μg/m3 |
- |
|
24-hour RSP Level (Rolling average) |
- |
100 μg/m3 |
|
24-hour FSP Level (Rolling average) |
- |
50 μg/m3 |
Mitigation measures for air quality control including good site practices and air quality mitigation measures stipulated in Air Pollution Control (Construction Dust) Regulation have been recommended in the EIA Report and listed in the implementation schedule given in Appendix 11.1.
In the event of complaints or non-compliance / area for improvement being observed, the ET and the I∙PARK2 Contractor should review the effectiveness of these mitigation measures, design alternative or additional mitigation measures as appropriate and propose to the IEC for approval and implement these alternative or additional measures.
Table 2-4 Action and Limit Plan for Construction Dust Monitoring
|
EVENT |
ACTION |
|||
|
ET |
IEC |
ER |
I∙PARK2 CONTRACTOR |
|
|
ACTION LEVEL |
||||
|
Exceedance for one 1-hour RSP concentration |
1. Notify IEC and ER; 2. Check the monitoring data and error messages to confirm if the performance of the monitoring equipment is normal; 3. If exceedance is confirmed, identify source(s), investigate the causes of exceedance and propose remedial measures; and 4. Assess effectiveness of Contractors remedial measures and keep IEC, and ER informed of the results until exceedance stops. |
1. Check monitoring data submitted by the ET; 2. Check Contractors working method; 3. Discuss with ET, ER and Contractor on possible remedial measures; 4. Advise the ET and ER on the effectiveness of the proposed remedial measures; and 5. Supervise implementation of remedial measures.
|
1. Confirm receipt of notification of exceedance in writing. 2. Notify Contractor; 3. In consultation with ET and IEC, agree with the Contractor on the remedial measures to be implemented; and 4. Ensure the proposal for remedial measures are properly implemented.
|
1. Identify source(s) of exceedance, and discuss with ER, ET and IEC on possible remedial measures; 2. Implement remedial measures; and 3. Amend working methods if appropriate.
|
|
Exceedance for two or more consecutive 1-hour RSP concentration |
1. Notify IEC and ER; 2. Check the monitoring data and the performance of monitoring equipment to confirm if the performance of the monitoring equipment is normal; 3. If exceedance is confirmed, identify source(s), investigate the causes of exceedance and propose remedial measures; 4. Discuss with IEC, ER and Contractor on possible remedial measures required; and 5. Assess effectiveness of Contractors remedial measures and keep IEC, and ER informed of the results until exceedance stops; and 6. Notify EAD of EPD if the exceedance is confirmed to be related to the Project.
|
1. Check monitoring data submitted by the ET; 2. Check Contractors working method and verify the performance of the monitoring equipment to be checked by ET; 3. Discuss with ET, ER and Contractor on possible remedial measures; 4. Review and advise the ET and ER on the effectiveness of the proposed remedial measures; and 5. Supervise Implementation of remedial measures.
|
1. Confirm receipt of notification of exceedance in writing; 2. Notify Contractor; 3. In consultation with the ET and IEC, agree with the Contractor on the proposal for remedial measures to be implemented; and
4. Ensure the proposal for remedial measures are properly implemented.
|
1. Identify source(s) of exceedance and discuss with ER, ET and IEC on possible remedial measures; 2. Submit a proposal for remedial measures to ER, IEC and ET within two working days of notification of exceedance for agreement; 3. Implement the agreed proposals; and 4. Amend proposal as appropriate.
|
|
LIMIT LEVEL |
||||
|
Exceedance for one 24-hour rolling average RSP concentration record and/or one 24-hour rolling average FSP concentration record
|
1. Notify IEC, ER and I∙PARK2 Contractor and EAD of EPD; 2. Check the monitoring data and the performance of the monitoring equipment; 3. If exceedance is confirmed, identify source(s), investigate the causes of exceedance and propose remedial measures; 4. Discuss with IEC, ER and I∙PARK2 Contractor on possible remedial measures required; and 5. Assess effectiveness of I∙PARK2 Contractors remedial measures and keep IEC, ER and EAD of EPD informed of the results until exceedance stops. 6. Notify EAD of EPD if the exceedance is confirmed to be related to the Project.
|
1. Check monitoring data submitted by the ET; 2. Check I∙PARK2 Contractors working method; and verify the performance of the monitoring equipment to be checked by ET; 3. Discuss with the ET, ER and I∙PARK2 Contractor on possible remedial measures; 4. Advise the ET and ER on the effectiveness of the proposed remedial measures; 5. Review I∙PARK2 Contractors remedial measures whenever necessary to assure their effectiveness and advise ET and ER accordingly; and 6. Supervise implementation of remedial measures.
|
1. Confirm receipt of notification of exceedance in writing; 2. Notify I∙PARK2 Contractor; 3. In consultation with the ET and IEC, agree with the I∙PARK2 Contractor on the proposal for remedial measures to be implemented;
4. Ensure the proposal for remedial measures properly implemented. 5. If exceedance continues, identify what portion of the work is responsible and instruct the I∙PARK2 Contractor to stop that portion of work until exceedance is abated. |
1. Identify source(s) and discuss with ER, ET and IEC on possible remedial measures; 2. Take immediate action to avoid further exceedance; 3. Submit a proposal for remedial measures to ER, ET and IEC within two working days of notification for agreement; 4. Implement the agreed proposals; 5. Review and resubmit proposals if the problem is still not under control. 6. Stop the relevant portion of works as determined by ER until exceedance is abated. |
2.3 Monitoring during Operational Phase
Based on the prediction of the air quality modelling exercise conducted under this EIA study, no adverse air quality impact is anticipated during the operation of the Project. Air pollutants of the exhaust gas streams emitted from the stack will be continuously monitored and recorded in accordance with the prevailing guidance note on the BPM for incinerators (municipal waste incineration) in Hong Kong.
The parameters for measurement and the analytical methods are listed in Table 2-5. It should be noted that the proposed sampling methods below are for reference only and should be subject to the approval of EAD of EPD.
Table 2‑5 Analytical Parameters and Methodology
|
Parameters |
Method |
Frequency |
|
Dioxin and Furans |
USEPA Method 23 |
Once per half year |
|
PCBs and PAHs |
USEPA Method 23 |
Once during commissioning stage |
|
HCl and HF |
USEPA Method 26, A USEPA Method 13B sampling train |
On-line continuous |
|
Heavy Metals Cd, Tl, Hg, Sb, As, Pb, Cr including Cr(VI), Co, Cu, Mn, Ni and V - particulate and gaseous form |
USEPA Method 29 |
Monthly |
|
Heavy Metals Se, Zn, Be |
USEPA Method 29 |
Once during commissioning stage |
|
Gaseous and vaporous organic substances, expressed as total organic carbon (TOC) |
USEPA Method 18, USEPA Method 0031 |
Monthly |
|
Combustion Gases |
|
|
|
Carbon Dioxide |
Fyrite analyser, Combustion analyser |
On-line continuous |
|
Carbon Monoxide |
Combustion Gas Analyser |
On-line continuous |
|
NOx/NO |
USEPA Reference methods USEPA Method 7 and associated methods, |
On-line continuous |
|
Oxygen |
Combustion Gas Analyser (chemical cell and paramagnetic) |
On-line continuous |
|
Sulphur dioxide and Sulphuric Acid Mist |
USEPA Method 8 |
On-line continuous |
|
Particulates |
ISO 9096, ASTM D3685-98, USEPA Method 17 |
On-line continuous |
|
Velocity and Volumetric Flow |
ISO 10780 and ISO 9096 |
On-line continuous |
|
Ammonia |
HJ 533-2009, HJ 534-2009 or international standard / method acceptable to the air pollution control authority |
On-line continuous |
Necessary monitoring equipment and techniques should be provided and used to demonstrate that the process is properly operated and the emissions can be minimized to meet the air pollution control requirements. The scope, manner and frequency of the monitoring shall be sufficient for this purpose and will be proposed by the I∙PARK2 Contractor and agreed with the air pollution control authority according to the EPDs Guidance Note on the Best Practicable Means for Incinerators (Municipal Waste Incineration) BPM 12/1 (2024). Monitoring results shall be recorded in such manner specified by EAD of EPD. The record should be retained at the premises for a minimum of two years, or other period specified by EAD of EPD, after the date of last entry and be made available for examination as and when required by EAD of EPD.
On-line continuous monitoring and periodic measurement shall be carried out and the results shall be properly recorded. Evidence should be provided to demonstrate quality assurance procedures are in place to ensure all monitoring results are sufficiently accurate and reliable. Calibration on the monitoring equipment has to be done by means of parallel measurements with the reference methods as agreed by EAD of EPD. The requirements of the on-line monitoring and periodic measurement are provided in the following sections.
According to the EPDs Guidance Note on the Best Practicable Means for Incinerators (Municipal Waste Incineration) BPM 12/1 (2024), commissioning trial of the plant, to be witnessed by the air pollution control authority whenever appropriate, shall be conducted in such manner and format agreed with the air pollution control authority to demonstrate the effectiveness of the air pollution control measures and the compliance with emission limits. A report shall be submitted to the air pollution control authority within 1 month after the completion of the commissioning trial. For key air pollutants not covered in the prevailing guidance note on the BPM for incinerators (municipal waste incineration) including Be, Zn, Se, PCBs, PAHs and carcinogenic PAHs, commissioning test shall be conducted upon commissioning of I∙PARK2 to demonstrate compliance with the emission rates assumed in the EIA report.
Continuous monitoring of the in-stack exhaust gas and the process during operational phase shall be carried out during the entire period of I∙PARK2 operation. Any proposed changes or proposed termination of the monitoring work shall only be implemented after the proposal has been agreed by the EAD of EPD. The system of continuous emission monitoring including instrument specifications, quality control, operation and maintenance to be implemented by the I∙PARK2 Contractor shall meet the protocols set out in the guideline General Requirements of Continuous Emission Monitoring (CEM) System issued by EPD. The continuous monitoring data should be transmitted instantaneously to EAD of EPD by telemetry system in such manner and format agreed with EAD of EPD. The parameters to be continuously monitored are listed below:-
In-stack Exhaust Gas Continuous Monitoring
nitrogen oxides, expressed as nitrogen dioxide
particulates
hydrogen chloride
hydrogen fluoride
sulphur dioxide
gaseous and vaporous organic substances, expressed as total organic carbon (TOCs)
carbon monoxide
ammonia
oxygen content
pressure
temperature
water vapour content (continuous measurement of water vapour content shall not be required if the sampled exhaust gas is dried before analysis.)
volumetric flow rate of the exhaust gas
Process Continuous Monitoring
temperature and oxygen content of the gas at the appropriate location(s) in the combustion chamber to demonstrate the compliance of the requirements set out in paragraphs 4.3.1 to 4.3.4 of EPDs Guidance Note on the Best Practicable Means for Incinerators (Municipal Waste Incineration) BPM 12/1 (2024) and the requirements set out in the EIA report
temperature of the gas at the appropriate location(s) in the chimney to demonstrate the compliance of the requirements set out in paragraph 4.4.3 of EPDs Guidance Note on the Best Practicable Means for Incinerators (Municipal Waste Incineration) BPM 12/1 (2024) and the requirements set out in the EIA report
other essential operating parameter(s) which may affect the performance of air pollution control measures
To confirm that the levels of dioxin and heavy metals are being adequately controlled, periodic measurements shall be made to confirm that these pollutants continue to be adequately controlled.
The sampling and testing frequency will be proposed by the applicant and agreed with the air pollution control authority according to the EPDs Guidance Note on the Best Practicable Means for Incinerators (Municipal Waste Incineration) BPM 12/1 (2024). All measurement results should be recorded, processed and presented in a summary report as agreed by EAD of EPD. The report should be submitted to EAD of EPD without delay after the source sampling(s) as required is/are completed.
For the IBA treatment plant, the monitoring requirements shall follow the EPDs Guidance Note on the Best Practicable Means for Mineral Works (Stone Crushing Plant) BPM 11/1 (95). The monitoring frequency shall be agreed with the air pollution control authority according to the above guidance note. The monitoring locations shall include the exhaust points of the IBA treatment plant to demonstrate compliance with the requirements set out in the EIA report.
According to the EPDs Guidance Note on the Best Practicable Means for Mineral Works (Stone Crushing Plant) BPM 11/1 (95), commissioning trial of the IBA treatment plant, to be witnessed by the air pollution control authority whenever appropriate, shall be conducted to demonstrate the performance and capacity of the air pollution control measures. A report of the commissioning trial shall be submitted to the air pollution control authority within one month after completion of the trial.
2.4 Odour Patrol
To determine the effectiveness of the proposed odour mitigation measures and to ensure no adverse odour nuisance arising from the operation of the I∙PARK2 including the wastewater treatment facility, waste reception hall, waste storage areas and waste feed system, odour patrol shall be conducted by an independent odour patrol team as established by the I∙PARK2 Contractor. The odour patrol team will patrol and sniff along an odour patrol route along the I∙PARK2 site boundary at shown in Figure 2.1. The implementation of the odour patrol shall be subject to the prevailing weather forecast condition and no odour patrol should be carried out during rainy day.
The odour patrol team shall be comprised of at least two independent trained personnel / competent persons, who should pass a set of screening tests and fulfil the following requirements:-
have their individual odour threshold of n-butanol in nitrogen gas in the range of 20 to 80 ppb/v required by the European Standard Method (EN 13725);
be at least 16 years of age and willing and able to follow instructions;
be free from any respiratory illnesses;
not allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30 min before and during odour patrol;
take great care not to cause any interference with their own perception or that of others by lack of personal hygiene or the use of perfumes, deodorants, body lotions or cosmetics;
and not communicate with each other about the results of their choices.
The independent trained personnel / competent persons should use their noses (olfactory sensors) to sniff odours at different locations. The main odour emission sources and the areas to be affected by the odour nuisance shall be identified. During the patrol, the sequence should generally start from less odorous locations to stronger odorous locations.
The perceived odour intensity is divided into 5 levels. Table 2-6 describes the odour intensity for different levels.
Table 2‑6 Odour Intensity Level
|
Level |
Odour Intensity |
|
0 |
Not detected. No odour perceived or an odour so weak that it cannot be easily characterised or described |
|
1 |
Slight identifiable odour, and slight chance to have odour nuisance |
|
2 |
Moderate identifiable odour, and moderate chance to have odour nuisance |
|
3 |
Strong identifiable, likely to have odour nuisance |
|
4 |
Extreme severe odour, and unacceptable odour level |
The independent trained personnel / competent persons shall record the findings including date and time, weather condition (e.g. sunny, fine, cloudy, and rainy), odour intensity, odour nature and possible odour sources, local wind speed, and wind direction at each location. In addition, some relevant meteorological data such as daily average temperature, and daily average humidity on the day of odour patrol shall be obtained from the nearest Hong Kong Observatory station for reference.
Odour patrols will be conducted monthly in the first 2 operational years of the I∙PARK2. In each month, the odour patrol shall be carried out during both daytime and evening / night time (a total of 2 odour patrols on the same day) when the I∙PARK2 are operated under normal operating condition. The findings of the odour patrols during the first 2 operational years of the I∙PARK2 shall be certified by the ET Leader and verified by the IEC.
The need to continue the odour patrol after the first 2 operational years of the I∙PARK2 would depend on the odour patrol results and should be agreed with EAD of EPD. If the level of odour intensity at any sniffing location is higher than 1 due to potential odour emission from the I∙PARK2 including the wastewater treatment facility, waste reception hall, waste storage areas and waste feed system in two consecutive months, the odour patrol programme would be extended until the level of odour intensity (that is determined to be due to potential odour emission from the I∙PARK2 or the associated facilities) at all the sniffing locations have dropped to 0 in three consecutive months.
Table 2-7 shows the action level and limit level to be used for odour patrol. Should any exceedance of the action and limit levels occurs, actions in accordance with the event and action plan in Table 2-8 should be carried out.
Table 2‑7 Action and Limit Levels for Odour Nuisance
|
Parameter |
Action Level |
Limit Level |
|
Odour Intensity (from odour patrol) |
When one documented complaint is received(Note), or Odour Intensity of 1 is measured from odour patrol. |
Two or more documented complaints are received(Note) within a week; or Odour intensity of 2or above is measured from odour patrol. |
Note: Once the complaint is received by the Project Proponent (WID) or I∙PARK2 Contractor, the Project Proponent or I∙PARK2 Contractor shall investigate and verify the complaint whether it is related to the potential odour emission from the I∙PARK2 and associated facilities.
Table 2‑8 Event and Action Plan for Odour Patrol
|
EVENT |
ACTION |
|
|
Person-in-charge of Odour Patrol |
Project Proponent (WID)[Note] or I∙PARK2 Contractor |
|
|
ACTION LEVEL |
||
|
Exceedance of action level (Odour Patrol) |
1. Identify source/reason of exceedance; 2. Repeat odour patrol to confirm finding. |
1. Carry out investigation to identify the source/reason of exceedance. Investigation should be completed within 2 weeks; 2. Rectify any unacceptable practice; 3. Implement mitigation measures if necessary; 4. Inform EAD of EPD. |
|
Exceedance of action level (Odour Complaints) |
1. Identify source/reason of exceedance; 2. Carry out odour patrol to determinate odour intensity. |
1. Carry out investigation and verify the complaint whether it is related to potential odour emission from I∙PARK2; 2. Carry out investigation to identify the source/reason of exceedance. Investigation should be completed within 2 weeks; 3. Rectify any unacceptable practice; 4. Implement more mitigation measures if necessary; 5. Inform EAD of EPD. |
|
LIMIT LEVEL |
||
|
Exceedance of Limit level |
1. Identify source/reason of exceedance; 2. Inform EAD of EPD; 3. Repeat odour patrol to confirm findings; 4. Increase odour patrol frequency to bi-weekly; 5. Assess effectiveness of remedial action and keep EAD of EPD informed of the results; 6. If exceedance stops, cease additional odour patrol. |
1. Carry out investigation to identify the source/reason of exceedance. Investigation should be completed within 2 week; 2. Rectify any unacceptable practice; 3. Formulate remedial actions; 4. Ensure remedial actions properly implemented; 5. If exceedance continues, consider what more/enhanced mitigation measures should be implemented; 6. Inform EAD of EPD. |
Note: An implementation agent will be identified by the Project Proponent to carry out an independent investigation if necessary.
In the event when an odour complaint is received, the Project Proponent or I∙PARK2 Contractor should liaise with the complainant and register the complaint. The complaint register is to record detailed information regarding the odour complaint so as to facilitate the investigation work. The registration should contain, but not be limited to the following information:-
Location of where the odour nuisance occurred;
Date and time of the complaint and the nuisance event;
Description of the complaint, i.e. the type and characteristics of the odour; and an indication of the odour strength (highly offensive/offensive/slightly offensive/just continuously detectable /intermittently detectable);
Meteorological conditions from the nearest HK Observatory station at the time of complaint;
Name and contact information of the complainant; and
Remedial actions taken.
3.1 Introduction
The EIA report concluded that no existing, committed or planned noise sensitive receiver (NSR) has been identified within the assessment area. Based upon this, no noise monitoring is considered necessary for either the construction or operational phases.
3.2 Mitigation Measures
Mitigation measures for noise impacts have been recommended in the EIA report. All the recommended mitigation measures and designs are provided in the implementation schedule in Appendix B.
Regular environmental site audits are recommended to ensure the proper implementation of proposed mitigation measures during the construction phase.
4 Water Quality Impact
4.1 Introduction
Seawall modification and construction of the new berthing facility for I∙PARK2 would involve marine construction work. Non-dredged ground treatment method, i.e. Deep Cement Mixing (DCM) and deployment of silt curtain are recommended for the proposed marine construction works to reduce potential impacts on the water quality. The DCM involves injecting controlled volumes of cement into the underlying materials whilst simultaneously mixing the cement with the in-situ materials to improve their strength. A blanket layer of sand fill would be placed on top of the treatment works area prior to the DCM installation to prevent the escape of cement slurry into the water and disturbance of sediment fines during the mixing.
Marine water quality monitoring is recommended to verify the marine water quality impacts due to the sand blanket laying and DCM work of this Project. Site audit shall also be conducted throughout the marine and land-based construction under this Project to ensure that the recommended mitigation measures are properly implemented.
Operation of I∙PARK2 would involve brine discharge from the proposed desalination plant and the spent effluent discharge from the proposed seawater cooling system if seawater-cooled option is adopted. Marine water quality monitoring and audit programme is proposed for the first year of Project operation to verify the marine water quality impacts due to these discharges.
Water quality monitoring will be carried out for different stages of the Project as follows:
n Baseline marine water quality monitoring prior to the commencement of the marine construction work.
n Construction phase marine water quality monitoring during the sand blanket laying and DCM works.
n Post-construction water quality monitoring after completion of Project construction.
n Marine water quality monitoring during the first year of Project operation.
Discharge licence(s) should be obtained under the Water Pollution Control (WPCO) for construction site discharges and operational phase effluent discharges from the Project. Regular monitoring of effluent quality may be specified in as a condition of the WPCO discharge licence(s), and effluent monitoring shall be implemented in accordance with the WPCO licence requirements. Effluent monitoring as required under the WPCO licence(s) during construction and operational phases of this Project is not presented in this Manual.
It is recommended to establish impact and control monitoring stations during baseline, construction, post-construction and operational monitoring stages.
Seven (7) impact stations, that would potentially be affected by the Project, are proposed to verify the water quality impact predictions. These impact stations include water sensitive receivers (namely E1 and F2) and observation points (namely O1, O2, O3, B1 and B2). Two control stations (namely C1 and C2) are proposed for the Project. These control stations have been selected such that they are located within the same water body as the impact monitoring stations but are located outside the area of influence of the Project. The proposed marine water quality monitoring stations for baseline, construction, post-construction and operational stages are listed in Table 4-1. The locations of these monitoring stations are shown in Figure 4.1.
Table 4‑1 Proposed Marine Water Quality Monitoring Stations for All Monitoring Stages
|
Station |
Description |
Name |
Easting |
Northing |
|
E1 |
Impact Station |
Mudflat / seagrass / horseshoe crab |
812231 |
832329 |
|
F2 |
Impact Station |
Mariculture Subzone |
811698 |
833323 |
|
O1 |
Impact Station |
Oyster Culture Activities |
810512 |
832411 |
|
O2 |
Impact Station |
Oyster Culture Activities |
809868 |
831720 |
|
O3 |
Impact Station |
Oyster Culture Activities |
810603 |
831927 |
|
B1 |
Impact Station |
Black Point |
807831 |
831101 |
|
B2 |
Impact Station |
Black Point |
808141 |
830771 |
|
C1 |
Control Station |
Inner Deep Bay |
811885 |
834523 |
|
C2 |
Control Station |
Outer Deep Bay |
806808 |
830000 |
The status and locations of impact / control monitoring stations and the Project activities may change after issuing this Manual. The appointed ET Leader may propose alternative monitoring locations taking into consideration of the latest status, availability and/or accessibility of the various possible monitoring locations. Any change to the monitoring stations shall be justified by the ET Leader, agreed by the ER, verified by the IEC before seeking approval from EAD of EPD prior to the implementation of monitoring programme.
When alternative monitoring locations are proposed, they should be chosen based on the following criteria:
n at locations close to the site activities as indicated in the EIA report, which are likely to have water quality impacts.
n close to the sensitive receivers which are potentially to be affected.
n for monitoring locations located in the vicinity of the sensitive receivers, care should be taken to cause minimal disturbance during monitoring;.
n control station shall be selected at a location to allow a comparison of the water quality at the potentially impacted site with the ambient water quality. The control station shall be selected such that it is located within the same body of water as the impact monitoring station but is located outside the area of influence of the works.
Enough replicates in-situ measurements and sample collected from each independent sampling event are required for all parameters to ensure a robust statistically interpretable dataset.
4.3 Monitoring Parameters
The parameters that have been selected for measurement in-situ and in the laboratory are those that were either determined in the EIA to be those with the most potential to be affected by the Project or are a standard check on water quality conditions. Parameters to be measured during different monitoring stages are summarized in Table 4.2.
Table 4‑2 Proposed Marine Water Quality Monitoring Parameters for Different Monitoring Stages
|
Parameters (Unit) |
Baseline for Construction and Post-construction Stage |
Construction Stage |
Post-construction Stage |
Operational Stage |
|
|
Marine Sand Blanket Laying |
DCM Operation |
||||
|
In-situ Measurements |
|||||
|
Dissolved Oxygen (mg/L) |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Salinity (% or ppt) |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Temperature (oC) |
✓ |
✓ |
✓ |
✓ |
✓ |
|
pH |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Turbidity (NTU) |
✓ |
✓ |
✓ |
✓ |
✓ |
|
Total Residual Chlorine (mg/L) |
Not required |
Not required |
Not required |
Not required |
✓ |
|
Alkalinity (ppm) |
✓ |
Not required |
✓ |
✓ |
Not required |
|
Laboratory Measurements |
|||||
|
Suspended Solids (mg/L) |
✓ |
✓ |
✓ |
✓ |
Not required |
4.4 Monitoring Depths
Marine water samples and in-situ water quality measurement should be taken from 1m below the surface, mid-depth and 1m above seabed. Where the water depth is less than 6 m, marine water sampling and in-situ measurement at the mid-depth may be omitted. Should the water depth be less than 3 m, marine water sampling and in-situ measurement should be carried out only at the mid-depth of the water column. Replicate in-situ measurement is recommended at each sampling depth.
4.5 Field Log
In addition to the monitoring parameters in Table 4.2, relevant field data should also be recorded, including monitoring location / position, time, water depth, sampling depth, pH, salinity, DO saturation, water temperature, tidal stages, weather conditions, sea conditions, current direction and velocity and any special phenomena or work underway nearby that may affect the monitoring results. A sample data record sheet is shown in Appendix 4.1 for reference.
4.6 Monitoring Equipment
The instrument should be a portable and weatherproof Dissolved Oxygen (DO) measuring instrument complete with cable and sensor, and use a DC power source. The equipment should be capable of measuring:
n a DO level in the range of 0 - 20 mg/L and 0 - 200% saturation; and
n a temperature of 0 - 45 degree Celsius.
It shall have a membrane electrode with automatic temperature compensation complete with a cable. Sufficient stocks of spare electrodes and cables shall be available for replacement where necessary. For example, YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an approved similar instrument.
Shall salinity compensation not be built-in to the DO equipment, in-situ salinity shall be measured to calibrate the DO equipment prior to each DO measurement.
Turbidity shall be measured in-situ by the nephelometric method. The instrument shall be portable and weatherproof turbidity measuring instrument using a DC power source complete with cable, sensor and comprehensive operation manuals. It shall have a photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU (e.g. Hach model 2100P or an approved similar instrument). The cable shall not be less than 35m in length. The meter shall be calibrated to establish the relationship between NTU units and the levels of suspended solids.
The instrument should consist of a potentiometer, a glass electrode, a reference electrode and a temperature-compensating device. It should be readable to 0.1 pH in a range of 0 to 14. Standard buffer solutions of at least pH 7 and pH 10 should be used for calibration of the instrument before and after use. Details of the method shall comply with American Public Health Association (APHA), 19th ed. 4500-HTB.
A portable salinometer capable of measuring salinity in the range of 0-40 part per thousand (ppt) should be provided for measuring salinity of the water at each monitoring location.
A digital titrator capable of dispensing 0.002ml at one single dispense should be provided to measure the amount of sulphuric acid used in determination of alkalinity.
Total residual chlorine (TRC) shall be measured in-situ using approved test kit.
A water sampler is required. It should comprise a transparent PVC cylinder, with a capacity of not less than 2 litres, which can be effectively sealed with latex cups at both ends. The sampler should have a positive latching system to keep it open and prevent premature closure until released by a messenger when the sampler is at the selected water depth (for example, Kahlsico Water Sampler or an approved similar instrument).
A portable, battery-operated echo sounder (for example Seafarer 700 or a similar approved instrument) should be used for the determination of water depth at each designated monitoring station. This unit can either be hand held or affixed to the bottom of the work boat, if the same vessel is to be used throughout the monitoring programme. The echo sounder should be suitably calibrated. The monitoring contractor shall seek agreement from the ET Leader, IEC and ER on the proposed equipment prior to deployment.
No specific equipment is recommended for measuring the current velocity and direction. The monitoring contractor shall seek agreement from the ET Leader, IEC and ER on the proposed equipment prior to deployment.
Water samples should be stored in high density polythene bottle, packed in ice (cooled to 4°C without being frozen) and delivered to the laboratory and analysed as soon as possible after collection. Sufficient volume of samples should be collected to achieve the detection limit stated in Section 4.6.
A hand-held or boat-fixed type digital Differential Global Positioning System (DGPS) with way point bearing indication and Radio Technical Commission for maritime (RTCM) Type 16 error message screen pop-up facilities (for real-time auto-display of error messages and DGPS corrections from the Hong Kong Hydrographic Office), or other equipment instruments of similar accuracy, should be provided and used to ensure that the water sampling locations are correct during the water quality monitoring work. The DGPS, or equivalent instrument, should be suitably calibrated at appropriate checkpoint (e.g. Quarry Bay Survey Nail) to verify that the monitoring station is at the correct position before the water quality monitoring commence.
In-situ monitoring instruments for the monitoring of temperature, DO, turbidity, pH and salinity, alkalinity and TRC should be checked, calibrated and certified by a laboratory accredited under HOKLAS (or other international accreditation scheme that is HOKLAS-equivalent) before use, and subsequently re-calibrated at three monthly intervals throughout all stages of the water quality monitoring. Responses of sensors and electrodes should be checked with certified standard solutions before use.
Wet bulb calibration for the DO meter should be carried out before commencement of monitoring and after completion of all measurements each day.
A zero check in distilled water should be performed with the turbidity probe at least once per monitoring day. The probe should then be calibrated with a solution of known NTU. In addition, the turbidity probe should be calibrated at least twice per month to establish the relationship between turbidity readings (in NTU) and levels of suspended solids (in mg/L). Accuracy check of the digital titrator should be performed at least once per monitoring day.
For the on-site calibration of field equipment, the BS 1427:2009, Guide to on-site test methods for the analysis of waters should be observed.
Sufficient stocks of spare parts should be maintained for replacements when necessary. Backup monitoring equipment should also be made available so that monitoring can proceed uninterrupted even when some equipment is under maintenance, calibration, etc.
4.7 Laboratory Measurement / Analysis
Analysis of suspended solids (SS) should be carried out in a HOKLAS or other international accredited laboratory. Sufficient water samples should be collected at the monitoring stations for carrying out the laboratory determinations. Using chain of custody forms, collected water samples shall be transferred to the HOKLAS accredited laboratory for immediate processing. The determination work should start within 24 hours after collection of the water samples. The analytical methodology should follow the American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater or an equivalent method subject to the approval of EAD of EPD. Analytical methods and detection limits for SS are present in Table 4-3.
Table 4-3 Analytical Methods to be Applied to Water Quality Samples
|
Parameters |
Analytical Method |
Detection Limit |
|
Suspended Solids |
APHA 2540D * |
1 mg/L |
*APHA American Public Health Association Standard Methods for the Examination of Water and Wastewater
The testing of SS should be HOKLAS accredited (or if not, approved by EAD of EPD) and comprehensive quality assurance and control procedures in place in order to ensure quality and consistency in results.
Detailed testing methods, pre-treatment procedures, instruments use, Quality Assurance/ Quality Control (QA/QC) details (such as blank, spike recovery, number of duplicate samples per batch, etc.), detection limit and accuracy shall be submitted to EAD of EPD for approval prior to the commencement of monitoring programme. EAD of EPD may also request the laboratory to carry out analysis of known standards provided by EAD of EPD for quality assurance. The QA/QC shall be in accordance with the requirements of HOKLAS or international accredited scheme. The QA/QC results shall be reported. The testing methods and related proposal should be checked and certified by the ET Leader and verified by the IEC before submission to EAD of EPD for approval.
Additional duplicate samples may be required by EAD of EPD for inter-laboratory calibration. Remaining samples after analysis should be kept by the laboratory for 3 months in case repeat analysis is required. If in-house or non-standard methods are proposed, details of the method verification may also be required to submit to EAD of EPD. In any circumstance, the sample testing should have comprehensive quality assurance and quality control programmes. The laboratory should prepare to demonstrate the programme to DEP or his representatives when requested.
Baseline conditions for marine water should be established and agreed with EAD of EPD prior to the commencement of marine construction works. The purpose of the baseline monitoring is to establish ambient conditions prior to the commencement of the marine construction works and to demonstrate the suitability of the proposed monitoring stations. No marine construction activities shall be on-going in the vicinity of the stations during the baseline monitoring. The baseline conditions should be established by measuring the water quality parameters specified in Table 4-2.
The baseline marine water quality monitoring for construction phase should be taken at all designated monitoring stations, 3 days per week, at mid-flood and mid-ebb tides, for at least 4 weeks prior to the commencement of construction works. There should not be any marine construction activities in the vicinity of the stations during the baseline monitoring. The interval between 2 sets of monitoring should not be less than 36 hours.
For operational phase, the ET Leader shall collect all relevant existing available monitoring data and seek approval from the ER, IEC and EAD of EPD on an appropriate set of data to be used as baseline reference as well as the additional baseline monitoring methodology prior to the commencement of operational phase impact monitoring. Where necessary, EPD routine marine water quality monitoring data at the relevant station(s), dry and wet seasons inclusive, could also be referenced to establish the baseline water quality.
Baseline monitoring schedule should be submitted to EAD of EPD at least 1 week prior to the commencement of baseline monitoring. EAD of EPD should also be notified immediately for any changes in schedule. The baseline monitoring report should be certified by the ET Leader and verified by the IEC before submission to EAD of EPD. The ET shall be responsible for undertaking the baseline monitoring and submitting the results within 10 working days from the completion of the baseline monitoring work. The baseline monitoring programme is summarized in Table 4-4.
Table 4-4 Summary of Baseline Marine Water Quality Monitoring
|
Activities |
Monitoring Duration |
Monitoring Frequency |
Monitoring Parameters |
Monitoring Station |
|
Establishment of baseline water quality condition for comparison with construction impact monitoring results |
At least 4 weeks |
Three days per week |
DO, pH, salinity, temperature, turbidity, alkalinity, SS |
All designated Stations in Table 4-1 |
|
Establishment of baseline water quality condition for comparison with operational impact monitoring results |
ET to collect and review of all relevant existing available monitoring data and propose an appropriate set of data to be used as baseline reference as well as the additional baseline monitoring methodology |
|||
Impact monitoring should be undertaken at all designated monitoring stations three days per week during the sand blanket laying works and DCM operation. During each monitoring event, monitoring should be undertaken at both mid-flood and mid-ebb tides. Upon completion of the construction works, the monitoring exercise at the designated monitoring locations should be undertaken for four weeks in the same manner as the impact monitoring. The interval between two sets of monitoring should not be less than 36 hours except where there are exceedances of Action and/or Limit Levels, in which case the monitoring frequency will be increased. Table 4-2 shows the proposed monitoring parameters.
The water quality monitoring schedule should be submitted to EAD of EPD at least 1 week before the first day of the monitoring month. EAD of EPD should be notified immediately of any changes in schedule. If the monitoring data collected at the designated stations indicate that the Action or Limit Levels as shown in Table 4-7 are exceeded, appropriate actions should be taken in accordance with the Event and Action Plan in Table 4-8. The water quality monitoring programme for construction and post-construction stages is summarized in Table 4-5.
Table 4-5 Summary of Marine Water Quality Monitoring During Construction and Post-construction Stages
|
Activities |
Monitoring Duration |
Monitoring Frequency |
Monitoring Parameters |
Monitoring Station |
|
Sand blanket laying |
6 months * |
Three days per week |
DO, pH, salinity, temperature, turbidity, SS |
All designated Stations in Table 4-1 |
|
DCM operation |
6 months * |
Three days per week |
DO, pH, salinity, temperature, turbidity, alkalinity, SS |
All designated Stations in Table 4-1 |
|
Post-construction stage monitoring |
4 weeks |
Three days per week |
DO, pH, salinity, temperature, turbidity, alkalinity, SS |
All designated Stations in Table 4-1 |
* Duration of sand blanket laying and DCM operation is indicative for reference only and will be subject to the actual progress of the construction works.
Marine water monitoring should be carried out during the first year of Project operation at frequency of twice per month. At each monitoring event, in-situ measurement and water sampling should be carried out at both mid-flood and mid-ebb tides. The monitoring locations should be the same as that recommended for the construction phase marine water quality monitoring programme. Table 4-2 shows the proposed monitoring parameters.
The proposed water quality monitoring schedule should be submitted to ER, IEC and EAD of EPD at least 4 weeks before the first day of the monitoring month. The ER, IEC and EAD of EPD should also be notified immediately for any changes in schedule. If the monitoring data collected at the designated stations indicate that the Action or Limit Levels as shown in Table 4-7 are exceeded, appropriate actions should be taken in accordance with the Event and Action Plan in Table 4-8.
After obtaining one year of monitoring results, the ET shall review against the baseline conditions to identify if there is any change to the overall water quality in Deep Bay and propose remedial action if there is any deterioration in water quality due to the Project. The ET shall also review if water quality monitoring should be continued during the second year of operation and seek agreement from ER, IEC and EAD of EPD on any changes of the monitoring programme.
Table 4-6 Summary of Operational Stage Marine Water Quality Monitoring
|
Activities |
Monitoring Duration |
Monitoring Frequency |
Monitoring Parameters |
Monitoring Station |
|
Project operation |
First year of operation |
Twice per month |
DO, pH, salinity, temperature, turbidity, TRC |
All designated Stations in Table 4-1 |
The water quality criteria, namely Action and Limit Levels, are shown in Table 4-7. These criteria should be applied to ensure that any deterioration of water quality is readily detected and timely action is taken to rectify the situation. Should the monitoring results of the water quality parameters at any designated monitoring station exceed the water quality criteria, the actions in accordance with the Event and Action Plan summarized in Table 4-8 shall be carried out.
Table 4-7 Action and Limit Levels for Water Quality
|
Parameters |
Action |
Limit |
Stages |
|
Dissolved Oxygen (DO) in mg/L (1) |
Surface Layer for E1 and F2 ≤ 5 percentile of baseline data Depth-averaged for O1 to O3 ≤ 5 percentile of baseline data Bottom Layer for O1 to O3 ≤ 5 percentile of baseline data |
Surface Layer for E1 and F2 ≤5 mg/L or ≤ 1 percentile of baseline data, whichever is lower (3) Depth-averaged for O1 to O3 ≤4 mg/L or ≤ 1 percentile of baseline data , whichever is lower (3) Bottom Layer for O1 to O3 ≤2 mg/L or ≤ 1 percentile of baseline data, whichever is lower (3) |
Construction and Operational stages |
|
Suspended Solids (SS) in mg/L (Depth-averaged)
|
≥ 95 percentile of baseline data or 120% of data measured at control station at the same tide of the same day, whichever is higher (3) |
≥ 99 percentile of baseline or 130% of data measured at control station at the same tide of the same day, whichever is higher (3) |
Construction Stage |
|
Turbidity in NTU (Depth-averaged)
|
≥ 95 percentile of baseline data or 120% of data measured at control station at the same tide of the same day, whichever is higher (3) |
≥ 99 percentile of baseline or 130% of data measured at control station at the same tide of the same day, whichever is higher (3) |
Construction Stage |
|
Alkalinity in ppm (Depth-averaged)
|
≥ 95 percentile of baseline data or 120% of data measured at control station at the same tide of the same day, whichever is higher (3) |
≥ 99 percentile of baseline or 130% of data measured at control station at the same tide of the same day, whichever is higher (3) |
Construction Stage |
|
Temperature |
≥1.8°C above the relevant baseline data or ≥1.8°C above the temperature recorded at control station at the same tide of the same day, whichever is higher (3) |
≥ 2°C above the relevant baseline data or ≥ 2°C above the temperature recorded at control station at the same tide of the same day, whichever is higher (3) |
Operational Stage |
|
Total Residual Chlorine (TRC) (4) |
≥ 0.01 mg/L |
≥ 0.013 mg/L |
Operational Stage |
|
Salinity |
≥8% above the relevant baseline data or ≥ 8% above the salinity recorded at control station at the same tide of the same day, whichever is higher (3) |
≥10% above the relevant baseline data or ≥ 10% above the salinity recorded at control station at the same tide of the same day, whichever is higher (3) |
Operational Stage |
Notes:
(1) For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits. DO objective for E1 and F2 (within Mariculture Subzone) is available for surface layer only. DO objective for O1 to O3 is available for depth-average and bottom layer.
(2) For other parameters, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.
(3) The alternative Action / Limit Levels are proposed to address the uncertainty of the baseline data.
(4) The lowest detention limit for TRC is 0.01 mg/L.
Table 4-8 Event and Action Plan for Construction and Operational Stage Water Quality
|
Event |
ET Leader |
IEC |
ER |
I∙PARK2 Contractor |
|
Action level being exceeded by one sampling day |
Repeat in situ measurement to confirm findings; Identify reasons for non-compliance and source(s) of impact; Inform IEC and I∙PARK2 Contractor; Check monitoring data, all plant, equipment and I∙PARK2 Contractor's working methods; Discuss mitigation measures with IEC and I∙PARK2 Contractor; Repeat measurement on next day of exceedance. |
Discuss with ET and I∙PARK2 Contractor on the mitigation measures; Review proposals on mitigation measures submitted by I∙PARK2 Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. |
Discuss with IEC on the proposed mitigation measures; Make agreement on the mitigation measures to be implemented. Assess the effectiveness of the implemented mitigation measures. |
Inform the ER and confirm notification of the non- compliance in writing; Rectify unacceptable practice; Check all plant and equipment; Consider changes of working methods; Discuss with ET and IEC and propose mitigation measures to IEC and ER; Implement the agreed mitigation measures. |
|
Action level being exceeded by more than one consecutive sampling day |
Repeat in situ measurement to confirm findings; Identify reasons for non-compliance and source(s) of impact; Inform IEC and I∙PARK2 Contractor; Check monitoring data, all plant, equipment and I∙PARK2 Contractor's working methods; Discuss mitigation measures with IEC and I∙PARK2 Contractor; Ensure mitigation measures are implemented; Prepare to increase the monitoring frequency to daily; Repeat measurement on next day of exceedance. |
Discuss with ET and I∙PARK2 Contractor on the mitigation measures; Review proposals on mitigation measures submitted by I∙PARK2 Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. |
Discuss with IEC on the proposed mitigation measures; Make agreement on the mitigation measures to be implemented; Assess the effectiveness of the implemented mitigation measures. |
Inform the ER and confirm notification of the non- compliance in writing; Rectify unacceptable practice; Check all plant and equipment; Consider changes of working methods; Discuss with ET and IEC and propose mitigation measures to IEC and ER within three working days; Implement the agreed mitigation measures. |
|
Limit level being exceeded by one sampling day |
Repeat in situ measurement to confirm findings; Identify reasons for non-compliance and source(s) of impact; Inform IEC, I∙PARK2 Contractor and EAD of EPD; Check monitoring data, all plant, equipment and I∙PARK2 Contractor's working methods; Discuss mitigation measures with IEC, ER and I∙PARK2 Contractor; Ensure mitigation measures are implemented; Increase the monitoring frequency to daily until no exceedance of Limit level. |
Discuss with ET and I∙PARK2 Contractor on the mitigation measures; Review proposals on mitigation measures submitted by I∙PARK2 Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. |
Discuss with IEC, ET and I∙PARK2 Contractor on the proposed mitigation measures; Request I∙PARK2 Contractor to critically review the working methods; Make agreement on the mitigation measures to be implemented; Assess the effectiveness of the implemented mitigation measures. |
Inform the ER and confirm notification of the non- compliance in writing; Rectify unacceptable practice; Check all plant and equipment; Consider changes of working methods; Discuss with ET, IEC and ER and propose mitigation measures to IEC and ER within three working days; Implement the agreed mitigation measures. |
|
Limit level being exceeded by more than one consecutive sampling day |
Repeat in situ measurement to confirm findings; Identify reasons for non-compliance and source(s) of impact; Inform IEC, I∙PARK2 Contractor and EAD of EPD; Check monitoring data, all plant, equipment and I∙PARK2 Contractor's working methods; Discuss mitigation measures with IEC, ER and I∙PARK2 Contractor; Ensure mitigation measures are implemented; Increase the monitoring frequency to daily until no exceedance of Limit level for two consecutive days. |
Discuss with ET and I∙PARK2 Contractor on the mitigation measures; Review proposals on mitigation measures submitted by I∙PARK2 Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. |
Discuss with IEC, ET and I∙PARK2 Contractor on the proposed mitigation measures; Request I∙PARK2 Contractor to critically review the working methods; Make agreement on the mitigation measures to be implemented; Assess the effectiveness of the implemented mitigation measures; Consider and instruct, if necessary, the I∙PARK2 Contractor to slow down or to stop all or part of the construction activities until no exceedance of Limit level. |
Inform the ER and confirm notification of the non- compliance in writing; Rectify unacceptable practice; Check all plant and equipment; Consider changes of working methods; Discuss with ET, IEC and ER and propose mitigation measures to IEC and ER within three working days; Implement the agreed mitigation measures; As directed by the ER, to slow down or to stop all or part of the construction activities. |
Implementation of regular site audits is to ensure that the recommended mitigation measures are to be properly undertaken during proposed construction works. It can also provide an effective control of any malpractices and therefore achieve continual improvement of environmental performance on site.
Site audits shall be carried out by the ET and shall be based on the mitigation measures for water pollution control recommended in the implementation schedule as presented in Appendix 11.1. In the event that the recommended mitigation measures are not properly implemented, deficiency shall be recorded and reported to the site management. Suitable actions are to be carried out to:
investigate
the problems and the causes;
issue action notes to the I∙PARK2 Contractor who
is responsible for the works;
implement remedial and corrective actions immediately;
re-inspect the site conditions upon completion of the
remedial and corrective actions; and
record the event and discuss with the I∙PARK2
Contractor for preventive actions.
5.1 Introduction
During the construction phase, the I∙PARK2 Contractor shall be responsible for the implementation of mitigation measures to minimize waste or redress problems arising from the waste materials including construction and demolition (C&D) materials, chemical waste and general refuse. A Waste Management Plan (WMP), as a part of the Environmental Management Plan (EMP), should be prepared in accordance with ETWB TC (W) No.19/2005 and submitted to the Engineer for approval. The recommended mitigation measures should form the basis of the WMP. Regular audit of the construction waste materials and waste management practice is recommended during the construction phase.
During operational phase, incineration by-products (including bottom ash, fly ash and Air Pollution Control (APC) residues), dewatered sludge, chemical waste and general refuse would be generated. The bottom ash generated or imported would be treated for off-site beneficial uses (e.g. construction material production) [1]. Disposal of bottom ash at landfill would be the last resort if all possible options of the beneficial uses/outlet are exhausted and it is required to ensure compliance with the incineration residue pollution control limits and the leachate parameters set out for landfills in Hong Kong prior to landfill disposal. As for the fly ash / APC residues, the existing technology for recovering fly ash is immature with a high cost. The fly ash / APC residues will be treated by cement solidification or chemical stabilization to ensure compliance with the incineration residue pollution control limits and the leachate parameters set out for landfills in Hong Kong prior to landfill disposal. The Government will keep in view the development of fly ash treatment technology and consider recovering fly ash for beneficial use when the technology becomes mature and cost-effective.
Floating refuse may be trapped or accumulated along the artificial seawall during construction and operation of the Project. Considering no sharp turns or abrupt indentation for shoreline along the artificial seawall, entrapment or accumulation of floating refuse along the artificial seawall would be minimal. Floating refuse trapped within the Project area will be collected and properly treated or disposed of as general refuse.
5.2 Audit Requirements
Weekly audit of waste management practice shall be carried out by the ET during the construction phase and regular site inspection should be carried out during operational phase of the Project to determine if waste is being managed in accordance with the good waste management practices and mitigation measures listed in Appendix 11.1 as well as the prescribed waste management procedures and the EMP. The audits shall examine all aspects of waste management including waste generation, storage, recycling, treatment, transportation, delivery and disposal.
Apart from site inspection, documents including licences, permits, disposal and recycling records should be reviewed and audited for compliance with the legislation and contract requirements.
5.3 Monitoring Requirements
No monitoring is required during the construction phase of the Project.
During the operational phase, all bottom ash and stabilized fly ash / APC residues to be disposed of at landfill shall be tested in accordance with the requirements of the proposed Residue Pollution Control Limits (IRPCL) and leachability criteria presented in Table 5-1 before disposal.
Table 5‑1 Incineration Residue Pollution Control Limits
|
Pollutant Parameter |
Pollution Control Limit |
|
Residue Itself: Bottom Ash, Fly Ash and APC residues |
|
|
Total organic carbons (a) |
3% by weight or loss on ignition is less than 5% of the dry weight (b) |
|
Dioxins/Furans |
1 ppb (or 1 μg/kg) (c) |
|
Leachate Derived from the Residue: |
|
|
pH |
>8 (d) |
|
Heavy Metals (e) |
|
|
Cadmium (Cd) |
10 mg/L |
|
Chromium (Cr) |
50 mg/L |
|
Copper (Cu) |
250 mg/L |
|
Nickel (Ni) |
250 mg/L |
|
Lead (Pb) |
50 mg/L |
|
Zinc (Zn) |
250 mg/L |
|
Mercury (Hg) |
1 mg/L |
|
Tin (Sn) |
250 mg/L |
|
Silver (Ag) |
50 mg/L |
|
Antimony (Sb) |
150 mg/L |
|
Arsenic (As) |
50 mg/L |
|
Beryllium (Be) |
10 mg/L |
|
Thallium (Tl) |
50 mg/L |
|
Vanadium (V) |
250 mg/L |
|
Selenium (Se) |
1 mg/L |
|
Barium (Ba) |
1,000 mg/L |
Notes:
(a) Checking of carbon burnout of the ash is necessary to ensure adequate sterility
(b) European Union - Directive 2010/75/EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control).
(c) EPAs preliminary remediation goal for dioxin in soil is 1 ppb according to Update to the ATSDR Policy Guideline for Dioxins and Dioxin-Like Compounds in Residential Soil
(d) Approved EIA Report of Integrated Waste Management Facilities (AEIAR-163/2012)
(e) Toxicity Characteristic Leaching Procedure (TCLP) limits for landfill disposal.
Toxicity Characteristic Leaching Procedure (TCLP) tests shall be carried out for the bottom ash and stabilized fly ash / APC residues to be disposed of at landfill in accordance with the requirements of the proposed IRPCL prior to disposal to landfill. The proposed sampling frequencies of the test for stabilized fly ash / APC residues to be disposed of at landfill are as follows:
Testing and commissioning (T&C)
n During T&C, the Contractor shall sample and test every 20 m3 of stabilized fly ash / APC residues for conformance of the IRPCL and leachability criteria presented in Table 5-1.
First six months of operation
n During the first six months of operation, if all samples conform to the limits and criteria during T&C, the Contractor shall take two samples on daily basis for stabilized fly ash / APC residues; otherwise, the Contractor shall sample and test every 20 m3 of stabilized fly ash / APC residues until all samples conform to the limits and criteria throughout a continuous six-month period during operation.
After the first six months of operation
n If all samples conform to the limits and criteria throughout the preceding continuous six-month period during operation, the Contractor shall take two samples on the same day on monthly basis for stabilized fly ash / APC residues; otherwise, the Contractor shall take two samples on daily basis until all samples conform to the limits and criteria throughout the preceding continuous six-month period during operation..
The bottom ash will be treated for off-site beneficial uses. Disposal of bottom ash at landfill would be the last resort if all possible options of beneficial uses/outlet of the treated bottom ash are exhausted. The proposed sampling frequencies of the test for the bottom ash to be disposed of at landfill are as follows:
Testing and commissioning (T&C)
n During T&C, the Contractor shall sample and test every 20 m3 of the bottom ash for conformance of the IRPCL and leachability criteria presented in Table 5-1.
First six months of operation
n During the first six months of operation, if all samples conform to the limits and criteria during T&C, the Contractor shall take two samples on the same day on monthly basis for the bottom ash; otherwise, the Contractor shall sample and test every 20 m3 of the bottom ash until all samples conform to the limits and criteria throughout a continuous six-month period during operation.
After the first six months of operation
n If all samples conform to the limits and criteria throughout the preceding continuous six-month period during operation, the Contractor shall take two samples on the same day every three months for the bottom ash; otherwise, the Contractor shall take two samples on the same day on monthly basis until all samples conform to the limits and criteria throughout the preceding continuous six-month period during operation.
The detailed sampling and testing plan of the bottom ash and stabilized fly ash / APC residues to be disposed of at landfill site shall be agreed by EPD before commencement of the operation phase. The chemical analysis results of the sampling shall be submitted to EPD for approval before disposal of the bottom ash and stabilized fly ash / APC residues to the landfill.
The treated bottom ash for off-site beneficial use would be tested in accordance with the relevant requirements subject to the possible options of beneficial uses/outlet of the treated bottom ash.
6.1 Introduction
The EIA has evaluated the ecological consequences of the Project and recommended ecological mitigation measures to avoid, minimize and compensate for the impact arising from the Project.
In this section, the requirements for the monitoring and audit of ecological impacts arising from the Project are presented.
6.2 Mitigation Measures
Mitigation measures for ecological impacts have been recommended in the EIA report. All the recommended mitigation measures are provided in the implementation schedule in Appendix 11.1.
It is concluded in the EIA that the overall impacts on terrestrial ecology would be of negligible or low level of significance. No unacceptable impact is anticipated with mitigation measures in place. The recommended mitigation measures and good site practices in the EIA report and Appendix 11.1 shall be audited regularly as part of the EM&A programme during the construction phase.
Water quality monitoring and audit programme is recommended as discussed in Section 4 of this EM&A Manual. The monitoring and audit programme on water quality can also serve to protect the marine ecology. Marine ecological monitoring and audit is not required for the Project.
7.1 Introduction
No unacceptable residual fisheries impact is expected from the Project. The water quality monitoring and audit programme proposed in Section 4 of this EM&A Manual would also serve to protect against impacts to fisheries. No fisheries-specific monitoring programme is considered necessary for the Project.
Mitigation measures recommended for controlling water quality impact would also serve to protect against impacts to fisheries. All the recommended mitigation measures are provided in the implementation schedule in Appendix 11.1.
This section presents the requirements of the baseline review, and audit of the visual mitigation measures during the design, construction and operational phases of the Project.
The visual impact assessment of the EIA Study recommended a series of mitigation measures to ameliorate the visual impacts of the Project as summarized in Table 8-1.
Table 8‑1 Proposed Mitigation Measures for Operational Phase
|
ID |
Mitigation Measures |
Funding Agency |
Implementation Agency |
Maintenance/ Management Agency |
|
OM1 |
Infill Planting Infill planting of trees, shrubs and/or groundcovers shall be provided where space is available. |
WID of EPD |
I∙PARK2 Contractor |
I∙PARK2 Contractor |
|
OM2 |
Tree Planting along Site Boundary Tree planting shall be provided along the site boundary as far as practicable to provide visual screening effect. |
WID of EPD |
I∙PARK2 Contractor |
I∙PARK2 Contractor |
|
OM3 |
Green Roof and Vertical Greening Where practicable, green roof and vertical greening on the external walls without the coverage of architectural elements will be provided. |
WID of EPD |
I∙PARK2 Contractor |
I∙PARK2 Contractor |
|
OM4 |
Aesthetic Design of Buildings |
WID of EPD |
I∙PARK2 Contractor |
I∙PARK2 Contractor |
|
OM5 |
Control for Lighting and Glaring Maintain only essential lighting and implement suitable measures to reduce potential light nuisance during night-time and minimise nuisance caused by glare reflected from buildings or photovoltaic (PV) panels (e.g. adjusting tilting angle and orientation of the panels, and applying anti-reflective coating where appropriate) as far as practicable. The Guidelines on Industry Best Practices for External Lighting Installations should be observed with a view to minimising potential impacts arising from external lighting. |
WID of EPD |
I∙PARK2 Contractor |
I∙PARK2 Contractor |
During the detailed design stage, the I∙PARK2 Contractor shall appoint a registered architect and a registered landscape architect who are suitably qualified and experienced to further develop the detailed architectural and landscape design, taking into account the proposed design / mitigation measures to reduce or moderate the visual effects and enhance the overall visual quality. Design audit of the detailed architectural and landscape design shall be carried out by the ET Leader and verified by the IEC as conforming to the recommendations in Table 8-1 above.
A baseline review shall be undertaken by by the registered architect and registered landscape architect appointed by the I∙PARK2 Contractor prior to the commencement of the construction works. The purposes of the review are as follows:-
To check the status and any changes of the baseline viewing points (VPs) within and immediately adjacent to the works areas;
To determine whether amendments in the design of the visual mitigation measures are required; and
To recommend any necessary amendments to the design of the visual mitigation measures due to the above changes, if any.
Any changes to the mitigation measures that may be recommended as a result of the baseline review shall be taken into account in the detailed architectural and landscape design and agreed by the ET Leader, ER, IEC before seeking approval from the relevant authorities.
All visual measures undertaken by the I∙PARK2 Contractor shall be audited by the ET Leader and the IEC on a regular basis during the implementation and the first year after completion of the proposed design / mitigation measures to ensure the effectiveness of the proposed design / mitigation measures to reduce or moderate the visual effects and enhance the overall visual quality.
The air quality monitoring and audit programme proposed in Section 2 of this EM&A Manual would ensure compliance with the recommendations of the EIA study and assess the effectiveness of the recommended measures to avoid, minimise and mitigate the potential health impacts due to aerial and fugitive emissions arising from construction and operation of the Project including radon emissions associated with handling of pulverised fuel ash within the construction site during construction of the Project. Regular site inspections are recommended to ensure the proper implementation of proposed mitigation measures as presented in Appendix 11.1 during the construction and operational phases.
The section will focus on the potential health impacts due to radon emissions and contingency plan for potential accidental events during operation phase of the I∙PARK2.
With reference to EPDs Practice Note for Professional Persons ProPECC PN 1/99 Control of Radon Concentration in New Buildings, a management and monitoring plan on radon for the ventilation systems and the buildings shall be devised by the I∙PARK2 Contractor before commencement of operation of I∙PARK2 and fully implemented during operation of the Project. The management and monitoring plan shall be certified by the ET Leader and verified by the IEC as conforming to the requirements set out in the EIA report and ProPECC PN 1/99. Supervision of the operation and preventive maintenance of the ventilation systems and regular indoor radon measurement shall be conducted by recognized professional in related fields as appointed by the I∙PARK2 Contractor to ensure that the ventilation systems are performing as designed, and that the upkeep of building work is to a high standard,
9.3 Contingency Plan for Potential Accidental Events
The I∙PARK2 Contractor will be required to design, construct and operate I∙PARK2 according to the state-of-the-art technology and standards, emphasizing the necessity for well-trained operators to prevent potential accidental events. A list of potential accidental events that may give rise to potential health impacts and their respective preventive measures are presented in Table 9-1.
Table 9-1 Potential Accidental Events and Preventive Measures
|
Risks |
Preventive Measures |
|
Aerial emissions (emission discharges exceed
the discharge limit) |
Use the best
practicable means requirements for the prevention of emission of air
pollutants including proper operation and maintenance of equipment,
supervision when in use and training and supervision of properly qualified
staff and conduct regular monitoring and checking to ensure optimal
performance. |
|
Transportation, storage and handling |
Implement good
waste/ash transportation, storage and handling practices (see Section 10.3 of
the EIA report)
Arrange transportation
routes to avoid of densely populated or sensitive regions.
Establish protocols for
and deploy emergency response measures, including spill response, in the
event of accidents involving transportation vehicles.
Enforce rigorous driver
skill standards and provide training on safe driving practices for both
drivers and navigators, emphasizing road and marine safety behaviours. |
|
Chemical spillage and leakage |
Ensure the
implementation of appropriate procedures for handling and storing chemicals
and chemical wastes.
Establish a spill
prevention and response plan, which includes the provision of necessary
equipment and trained personnel to effectively respond to spills. |
|
Employee health and safety |
Follow industry best
practices based on international standards and guidelines.
Observe relevant
requirements promulgated by the Labour Department in respect of occupational
safety and health and consult Labour Department if needed. |
The I∙PARK2 Contractor will be required to develop and implement a Project-specific emergency response / contingency plan to handle potential accidental events during construction and operation of the I∙PARK2 Project with a view to minimise the health impacts associated with the potential accidental events. By implementing the recommended preventive measures and a well-executed emergency response / contingency plan for the I∙PARK2 Project, the likelihood of health impacts resulting from accidental events can be minimized, if not entirely avoided.
The landfill gas hazard (LFG) assessment undertaken in the EIA Study identified the hazards that are likely to be generated from the WENT Landfill Extensions (WENTX), during the construction and operational phases of this Project and evaluated the associated risk. The EIA Report recommended that precautionary and protection measures would be required to protect the I∙PARK2 from the LFG risk associated with WENTX. Appropriate LFG control protection systems referenced from the EPDs Landfill Gas Hazard Assessment Guidance Note were recommended. Regular monitoring during ground-works construction and operational phase of the Project was also recommended.
Regular environmental site audits are recommended to ensure the proper implementation of proposed precautionary and protection measures as presented in Appendix 11.1 during the construction phase and first 2 years of the operational phase. The need to continue the regular environmental site audits after the first 2 operational years of the I∙PARK2 should be agreed with EAD of EPD. The I∙PARK2 Contractor shall appoint a Safety Officer or an appropriately qualified person to carry out the LFG monitoring during construction and operation of the Project as set out below.
During construction, a Safety Officer should be appointed to carry out the monitoring works as presented in Section 11.8.2 of the EIA Report.
During operation, regular monitoring of landfill gas at the monitoring wells, underground service voids and manholes should be conducted by a Safety Officer or an appropriately qualified person appointed by the I∙PARK2 contractor in accordance with the monitoring programmes in the detailed qualitative risk assessment to be submitted during detailed design stage.
LFG Monitoring shall be undertaken during construction phase as described below:
n Periodically during ground-works construction within the WENTX consultation zone, the works area should be monitored for methane, carbon dioxide and oxygen using appropriately calibrated portable gas detection equipment, which is appropriately calibrated and capable of measuring the following gases in the ranges indicated below:
Methane: 0-100% LEL and 0-100% v/v
Carbon dioxide: 0-100%
Oxygen: 0-21%
n Routine monitoring should be carried out in all excavations, manholes and chambers and any other confined spaces that may have been created by, for example, the temporary storage of building materials on the site surface.
n The monitoring frequency and areas to be monitored should be determined prior to commencement of groundworks either by the Safety Officer or by an appropriately qualified person.
n All measurements in excavations should be made with the monitoring tube located not more than 10mm from the exposed ground surface.
n For excavations deeper than 1m, measurements should be made:
at the ground surface before excavation commences;
immediately before any worker enters the excavation;
at the beginning of each working day for the entire period the excavation remains open; and
periodically through the working day whilst workers are in the excavation.
n For excavations between 300mm and 1m deep, measurements should be made:
directly after the excavation has been completed; and
periodically whilst the excavation remains open.
n For excavations less than 300mm deep, monitoring may be omitted, at the discretion of the Safety Officer or other appropriately qualified person.
n Depending on the results of the measurements, actions required will vary and should be set down by the Safety Officer or other appropriately qualified person. As a minimum these shall encompass those actions specified in Table 10-1.
Table 10‑1 Actions in the Event of Gas Being Detected
|
Parameter |
Measurement |
Action |
|
Oxygen (O2) |
<19% |
ventilate trench/void to restore O2 to >19% |
|
<18% |
stop works
evacuate personnel/prohibit entry
increase ventilation to restore O2 to>19% |
|
|
Methane (CH4) |
>10% LEL (i.e. >0.5% by volume) |
prohibit hot works
ventilate to restore CH4 to <10% LEL |
|
>20% LEL (i.e. >1% by volume) |
stop works
evacuate personnel/prohibit entry
increase ventilation to restore CH4 to <10% LEL |
|
|
Carbon Dioxide (CO2) |
>0.5% |
ventilate to restore CO2 to <0.5% |
|
>1.5% |
stop works
evacuate personnel/prohibit entry
increase ventilation to restore CO2 to <0.5% |
n The hazards from landfill gas during the construction phase within the WENTX consultation zone shall be minimized by precautionary measures recommended in the Landfill Gas Hazard Assessment Guidance Note.
n In any emergency situation, the Safety Officer or other appropriately qualified person, shall have the necessary authority and shall ensure that the confined space is evacuated, and the necessary works implemented for reducing the concentrations of gas. The following organizations should also be contacted as appropriate:
● Hong Kong Police Force (HKPF);
● Fire Services Department (FSD);
● Environmental Protection Department (EPD); and
● Landfill Operator
Landfill gas (LFG) cut-off trench barrier would be built along the boundary between WENTX, I∙PARK2 and T∙PARK. This will cut off any gas migration to the I∙PARK2 from the WENTX and the barrier should be installed under the WENTX project. It is recommended that several LFG monitoring wells should be installed into the ground on the development side of the gas barrier by the I∙PARK2 Contractor.
Regular monitoring of LFG (including methane and carbon dioxide) should be carried out at the monitoring wells (as mentioned above) as well as at the underground service voids and manholes by the I∙PARK2 Contractor. Monitoring would be required to verify the effectiveness and to ensure the continued performance of the implemented protection measures. The maintenance and monitoring programmes shall be included in the detailed qualitative risk assessment to be prepared by the I∙PARK2 Contractor during detailed design stage, which shall be certified by the ET Leader and verified by the IEC before submission to the Landfills and Development Group of EPD for vetting. The submission shall include maintenance and monitoring programmes to ensure the continued performance of the proposed control measures.
Site inspection provides a direct means to initiate and enforce specified environmental protection and pollution control measures. These should be undertaken routinely to inspect construction activities in order to ensure that appropriate environmental protection and pollution control mitigation measures are properly implemented. The site inspection is one of the most effective tools to enforce the environmental protection requirements at the works area.
The ET Leader should be responsible for formulating the environmental site inspection, the deficiency and action reporting system, and for carrying out the site inspection works. He / she should submit a proposal for site inspection and deficiency and action reporting procedures to the I∙PARK2 Contractor for agreement, and to the IEC and ER for approval. The ETs proposal for rectification would be made known to the IEC.
Regular site inspections should be carried out at least once per week. The areas of inspection should not be limited to the environmental situation, pollution control and mitigation measures within the site, the site inspections should also review the environmental situation outside the works area which is likely to be affected, directly or indirectly, by the site activities. The ET Leader should make reference to the following information in conducting the inspection:-
(i) The EIA and EM&A recommendations on environmental protection and pollution control mitigation measures (including e.g. dust control measures and good site practice measures for ecological impact);
(ii) Ongoing results of the EM&A programme;
(iii) Work progress and programme;
(iv) Individual work methodology proposals (which shall include proposal on associated pollution control measures);
(v) Contract specifications on environmental protection;
(vi) Relevant environmental protection and pollution control laws; and
(vii) Previous site inspection results undertaken by the ET and others.
The I∙PARK2 Contractor should keep the ET Leader updated with all relevant information on the construction contract necessary for him / her to carry out the site inspections. Inspection results and associated recommendations for improvements to the environmental protection and pollution control works should be submitted to the IEC and the I∙PARK2 Contractor within 24 hours for reference and for taking immediate action. The I∙PARK2 Contractor should follow the procedures and time-frame as stipulated in the deficiency and action reporting system formulated by the ET Leader to report on any remedial measures subsequent to the site inspections.
The ET should also carry out ad hoc site inspections if significant environmental problems are identified. Inspections may also be required subsequent to receipt of environmental complaint, or as part of the investigation work, as specified in the Action Plan for environmental monitoring and audit.
There are contractual environmental protection and pollution control requirements as well as environmental protection and pollution control laws in Hong Kong with which construction activities must comply.
In order to ensure that the works are undertaken in compliance with the contractual requirements on environmental aspects, all works method statements submitted by the I∙PARK2 Contractor to the ER for approval should be sent to the ET Leader for vetting to see whether sufficient environmental protection and pollution control measures have been included. The implementation schedule of mitigation measures is summarised in Appendix 11.1.
The ET Leader should also review the progress and programme of the works to check that relevant environmental laws have not been violated, and that any foreseeable potential for violating laws could be prevented.
The I∙PARK2 Contractor should regularly copy relevant documents to the ET Leader so that works checking could be carried out. The document should at least include the updated Works Progress Reports, updated Works Programme, any application letters for different licence / permits under the environmental protection laws, and copies of all valid licences/ permits. The site diary should also be available for the ET Leader's inspection upon his / her request.
After reviewing the documentation, the ET Leader should advise the IEC and the I∙PARK2 Contractor of any non-compliance with contractual and legislative requirements on environmental protection and pollution control for them to take follow-up actions. If the ET Leader's review concludes that the current status on licence / permit application and any environmental protection and pollution control preparation works may result in potential violation of environmental protection and pollution control requirements, he / she should also advise the I∙PARK2 Contractor and the ER accordingly.
Upon receipt of the advice, the I∙PARK2 Contractor should undertake immediate action to correct the situation. The ER should follow up to ensure that appropriate action has been taken to satisfy contractual and legal requirements.
Complaints should be referred to the ET Leader for action. The ET Leader should undertake the following procedures upon receipt of any complaint:
(i) log complaint and date of receipt onto the complaint database and inform the IEC immediately;
(ii) investigate the complaint to determine its validity, and assess whether the source of the problem is due to works activities;
(iii) identify mitigation measures in consultation with the IEC if a complaint is valid and due to works;
(iv) advise the I∙PARK2 Contractor if mitigation measures are required;
(v) review the I∙PARK2 Contractor's response on the identified mitigation measure(s) and the updated situation;
(vi) if the complaint is transferred from the EPD, submit interim report to the EAD of EPD on status of the complaint investigation and follow-up action within the time frame assigned by the EAD of EPD;
(vii) undertake additional monitoring and audit to verify the situation if necessary, and
(viii) report investigation results and subsequent actions to complainant (if the source of complaint is EPD, the results should be reported within the timeframe assigned by the EAD of EPD); and
(ix) record the complaint, investigation, the subsequent actions and the results in the monthly EM&A reports.
The EM&A reporting shall be carried out in paper based plus electronic submission upon agreeing the format with the ER and EAD of EPD. All the monitoring data (baseline and impact) shall also be submitted in CD-ROM.
Types of reports that the ET Leader should prepare and submit include baseline monitoring report, monthly EM&A report, quarterly EM&A report and final EM&A review report. In accordance with Annex 21 of the EIAO-TM, a copy of the monthly, quarterly and final review EM&A reports should be made available to the Director of Environmental Protection.
The ET Leader should prepare and submit Baseline Environmental Monitoring Report(s) at least 2 weeks before commencement of construction of corresponding parts of the Project. The Baseline Monitoring Report(s) shall be certified by the ET Leaded and verified by the IEC as having complied with the requirements as set out in the EM&A Manual before submission to the EAD of EPD. The ET Leader should liaise with the relevant parties on the exact number of copies they require. The report format and baseline monitoring data format should be agreed with the EAD of EPD prior to submission.
The baseline monitoring report(s) should include at least the followings:
(i) up to half a page executive summary;
(ii) brief project background information;
(iii) drawings showing locations of the baseline monitoring stations;
(iv) monitoring results (in both hard and soft copies) together with the following information:
monitoring methodology;
types
of equipment used and calibration details;
parameters
monitored;
monitoring
locations;
monitoring
date, time, frequency and duration; and
quality
assurance (QA) / quality control (QC) results and detection limits;
(v) details of influencing factors, including:
major
activities, if any, being carried out on the site during the period;
weather
conditions during the period; and
other
factors which might affect results;
(vi) determination of the action and limit levels for each monitoring parameter and statistical analysis of the baseline data, the analysis should conclude if there is any significant difference between control and impact stations for the parameters monitored;
(vii) revisions for inclusion in the EM&A Manual; and
(viii) comments, recommendations and conclusions.
The results and findings of all EM&A work required in the EM&A Manual should be recorded in the monthly EM&A reports prepared by the ET Leader. The EM&A report should be prepared and submitted within 10 working days of the end of each reporting month, with the first report due the month after construction commences. Each monthly EM&A report shall be certified by the ET Leader and verified by the IEC as having complied with the requirements as set out in the EM&A Manual before submission to the EAD of EPD. Before submission of the first EM&A report, the ET Leader should liaise with the parties on the required number of copies and format of the monthly reports in both hard copy and electronic medium.
The ET leader should review the number and location of monitoring stations and parameters every six months, or on as needed basis, in order to cater for any changes in the surrounding environment and the nature of works in progress.
The first monthly EM&A report should include at least the following:
(i) executive summary (1-2 pages):
breaches of Action and Limit levels;
complaint log;
notifications of any summons and successful prosecutions;
reporting changes; and
future key issues.
(ii) basic project information:
project
organisation including key personnel contact names and telephone numbers;
construction
programme;
management
structure; and
works
undertaken during the month.
(iii) environmental status:
works
undertaken during the month with illustrations (such as location of works); and
drawings
showing the project area, any environmental sensitive receivers and the
locations of the monitoring and control stations (with co-ordinates of the
monitoring locations).
(iv) a brief summary of EM&A requirements including:
all
monitoring parameters;
environmental
quality performance limits (Action and Limit levels);
Event-Action
Plans;
environmental
mitigation measures, as recommended in the project EIA Final Report; and
environmental
requirements in contract documents.
(v) implementation status:
advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the project EIA Final Report.
(vi) monitoring results (in both hard and soft copies) together with the following information:
monitoring
methodology;
name
of types of equipment used and calibration details;
parameters
monitored;
monitoring
locations;
monitoring
date, time, frequency, and duration;
weather
conditions during the period;
any
other factors which might affect the monitoring results; and
QA/QC
results and detection limits.
(vii) report on non-compliance, complaints, and notifications of summons and successful prosecutions:
record
of all non-compliance (exceedances) of the environmental quality performance
limits (Action and Limit levels);
record
of all complaints received (written or verbal) for each media, including
locations and nature of complaints investigation, liaison and consultation
undertaken, actions and follow-up procedures taken, results and summary;
record
of all notification of summons and successful prosecutions for breaches of
current environmental protection / pollution control legislation, including
locations and nature of the breaches, investigation, follow-up actions taken,
results and summary;
review
of the reasons for and the implications of non-compliance, complaints, summons
and prosecutions including review of pollution sources and working procedures;
and
description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.
(viii) others
an
account of the future key issues as reviewed from the works programme and work
method statements;
advice
on the solid and liquid waste management status; and
comments
(for examples, effectiveness and efficiency of the mitigation measures),
recommendations (for example, any improvement in the EM&A programme) and
conclusions.
The subsequent monthly EM&A report should include at least the following:
(ix) executive summary (1-2 pages):
breaches
of Action and Limit levels;
complaint
log;
notifications
of any summons and successful prosecutions;
reporting
changes; and
future
key issues.
(x) environmental status:
Construction programme;
works undertaken during the month with illustrations (such as location of works); and
drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations (with co-ordinates of the monitoring locations).
(xi) implementation status:
advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the project EIA Final Report.
(xii) monitoring results (in both hard and soft copies) together with the following information:
monitoring methodology;
name of types of equipment used and calibration details;
parameters monitored;
monitoring locations;
monitoring date, time, frequency, and duration;
weather conditions during the period;
any other factors which might affect the monitoring results; and
QA/QC results and detection limits.
(xiii) report on non-compliance, complaints, and notifications of summons and successful prosecutions:
record of all non-compliance (exceedances) of the environmental quality performance limits (Action and Limit levels);
record of all complaints received (written or verbal) for each media, including locations and nature of complaints investigation, liaison and consultation undertaken, actions and follow-up procedures taken, results and summary;
record of all notification of summons and successful prosecutions for breaches of current environmental protection / pollution control legislation, including locations and nature of the breaches, investigation, follow-up actions taken, results and summary;
review of the reasons for and the implications of non-compliance, complaints, summons and prosecutions including review of pollution sources and working procedures; and
description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.
(xiv) others
an account of the future key issues as reviewed from the works programme and work method statements;
advice on the solid and liquid waste management status; and
comments (for examples, effectiveness and efficiency of the mitigation measures), recommendations (for example, any improvement in the EM&A programme) and conclusions.
(xv) appendix
Action and Limit levels;
graphical plots of trends of monitored parameters at key stations over the past four reporting periods for representative monitoring stations annotated against the following:
- major activities being carried out on site during the period;
- weather conditions during the period; and
- any other factors that might affect the monitoring results.
monitoring schedule for the present and next reporting period;
cumulative statistics on complaints, notifications of summons and successful prosecutions;
outstanding issues and deficiencies
Quarterly EM&A reports of around five pages should be produced and should contain at least the following information.
(i) up to half a page executive summary;
(ii) basic project information including a synopsis of the project organisation, programme, contacts of key management, and a synopsis of works undertaken during the quarter;
(iii) a brief summary of EM&A requirements including:
monitoring parameters;
environmental quality performance limits (action and limit levels); and
environmental mitigation measures, as recommended in the project EIA Final Report;
(iv) advice on the implementation status of environmental protection and pollution control / mitigation measures, as recommended in the project EIA Final Report, summarised in the updated implementation schedule;
(v) drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
(vi) graphical plots of any trends in monitored parameters over the past four months (the last month of the previous quarter and the present quarter) for representative monitoring stations annotated against:
the major activities being carried out on site during the period;
weather conditions during the period; and
any other factors which might affect the monitoring results;
(vii) advice on the solid and liquid waste management status;
(viii) a summary of non-compliance (exceedances) of the environmental quality performance limits (action and limit levels);
(ix) a brief review of the reasons for and the implications of any non-compliance, including a review of pollution sources and working procedures;
(x) a summary description of actions taken in the event of non-compliance and any follow-up procedures related to any earlier non-compliance;
(xi) a summarised record of all complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken;
(xii) comments (for examples, a review of the effectiveness and efficiency of the mitigation measures); recommendations (for example, any improvement in the EM&A programme) and conclusions for the quarter; and
(xiii) proponents contacts and any hotline telephone number for the public to make enquiries.
The EM&A programme for construction phase shall be terminated upon completion of those construction activities that have potential to result in significant environmental impact and after completion of the post-construction monitoring (if required).
The proposed termination should only be implemented after the proposal has been endorsed by the IEC, the ER and the Project Proponent followed by final approval from the Director of Environmental Protection.
The final EM&A review report for construction phase should include, inter alia, the following information:
(i) an executive summary;
(ii) drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
(iii) basic project information including a synopsis of the project organisation, contacts of key management, and a synopsis of work undertaken during the entire construction period;
(iv) a brief summary of EM&A requirements including:
monitoring parameters;
environmental quality performance limits (action and limit levels); and
environmental mitigation measures, as recommended in the project EIA Final Report;
Event-Action Plans.
(v) a summary of the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the project EIA Report, summarised in the updated implementation schedule;
(vi) graphical plots of the trends of monitored parameters over the construction period for representative monitoring stations, including the post-project monitoring annotated against:
the major activities being carried out on site during the period;
weather conditions during the period; and
any other factors which might affect the monitoring results.
(vii) a summary of non-compliance (exceedances) of the environmental quality performance limits (action and limit levels);
(viii) a brief review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures as appropriate;
(ix) a summary description of the actions taken in the event of non-compliance and any follow-up procedures related to earlier non-compliance;
(x) a summary record of all complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken;
(xi) a summary record of notifications of summons and successful prosecutions for breaches of the current environmental protection/pollution control legislations, locations and nature of the breaches, investigation, follow-up actions taken and results;
(xii) a review of the validity of EIA predictions and identification of shortcomings in EIA recommendations;
(xiii) comments (for examples, a review of the effectiveness and efficiency of the mitigation measures and of the performance of the environmental management system, that is, of the overall EM&A programme); and
(xiv) recommendations and conclusions (for example, a review of success of the overall EM&A programme to cost-effectively identify deterioration and to initiate prompt effective mitigation action when necessary).
Unless otherwise agreed by EAD of EPD, quarterly EM&A reports shall be submitted to record the results and findings of the operational phase EM&A programme, including but not limited to odour patrol for the first two years of Project operation, and the water quality monitoring during the first year of Project operation.
A final EM&A report for operational phase should be submitted to EAD of EPD upon completion of the relevant operational phase EM&A programme. The quarterly and final EM&A reports for operational phase shall be certified by the ET Leader and verified by the IEC as having complied with the requirements as set out in the EM&A Manual before submission to the EAD of EPD.
The EM&A programme for operational phase shall be terminated after the final EM&A report for operational phase has been endorsed by the IEC, the ER and the Project Proponent followed by final approval from the Director of Environmental Protection. The final EM&A report shall include, inter alia, the following information:
(i) an executive summary;
(ii) drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
(iii) basic project information including a synopsis of the project organisation, contacts of key management, and a synopsis of work undertaken during the entire construction period;
(iv) a brief summary of EM&A requirements including:
monitoring parameters;
environmental quality performance limits (action and limit levels); and
environmental mitigation measures, as recommended in the project EIA Final Report;
Event-Action Plans.
(v) a summary of the implementation status of environmental protection and pollution control/mitigation measures, as recommended in the project EIA Report, summarised in the updated implementation schedule;
(vi) graphical plots of the trends of monitored parameters over the construction period for representative monitoring stations, including the post-project monitoring annotated against:
the major activities being carried out on site during the period;
weather conditions during the period; and
any other factors which might affect the monitoring results.
(vii) a summary of non-compliance (exceedances) of the environmental quality performance limits (action and limit levels);
(viii) a brief review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures as appropriate;
(ix) a summary description of the actions taken in the event of non-compliance and any follow-up procedures related to earlier non-compliance;
(x) a summary record of all complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken;
(xi) a summary record of notifications of summons and successful prosecutions for breaches of the current environmental protection/pollution control legislations, locations and nature of the breaches, investigation, follow-up actions taken and results;
(xii) a review of the validity of EIA predictions and identification of shortcomings in EIA recommendations;
(xiii) comments (for examples, a review of the effectiveness and efficiency of the mitigation measures and of the performance of the environmental management system, that is, of the overall EM&A programme); and
(xiv) recommendations and conclusions (for example, a review of success of the overall EM&A programme to cost-effectively identify deterioration and to initiate prompt effective mitigation action when necessary).
No site-based documents (such as monitoring field records, laboratory analysis records, site inspection forms, etc.) are required to be included in the monthly EM&A reports. However, any such document should be well kept by the ET Leader and be ready for inspection upon request. All relevant information should be clearly and systematically recorded in the document. Monitoring data should also be recorded in magnetic media form, and the software copy must be available upon request. Data format should be agreed with EAD of EPD. All documents and data should be kept for at least one year following completion of the DBO contract.
With reference to the Event and Action Plan, when the environmental quality performance limits are exceeded, the ET Leader should immediately notify the IEC and EAD of EPD, as appropriate. The notification should be followed up with advice to IEC and EAD of EPD on the results of the investigation, proposed actions and success of the actions taken, with any necessary follow-up proposals. A sample template for the interim notifications is presented in Appendix 12.1.
[1] Taking MSW incineration bottom ash treated for use as aggregate in Mainland China as an example, the relevant requirements in GB/T 25032-2010 should be met. More stringent treatment requirements might be required for other options of beneficial uses/outlet of the treated bottom ash.