F1 EM&A Requirements

F2 AIR QUALITY

F2.2 Monitoring Locations

F2.2.1 Based on the findings of the EIA report, five representative locations which would be worst affected locations in different area are designated for construction dust monitoring as listed in Table F2.1 and illustrated in Figure 2.2. The status and locations of dust sensitive receivers may change after issuing this manual. If such cases exist, the ET Leader shall propose updated monitoring locations and seek approval from ER and agreement from the IC(E).

Table F2.1 Construction Dust Monitoring Locations

Identification No.	ASR ID in EIA Report	Location
CMA1	A93	North Point – City Garden Block 11
CMA2	A63	North Point – Victoria Centre
CMA3	A50	Causeway Bay – Royal Hong Kong Yacht Club
CMA4	A38	Wanchai – Wanchai Sports Ground
CMA5	A32	Wanchai – Hong Kong Convention & Exhibition Centre

F2.2.2 When alternative monitoring locations are proposed, the proposed site should, as far as practicable:

a) be at the site boundary or such locations close to the major dust emission source;

b) be close to the sensitive receptors; and

c) take into account the prevailing meteorological conditions.

F2.2.3 The ET shall agree with the ER in consultation with the IC(E) on the position of the HVS for the installation of the monitoring equipment. When positioning the samplers, the following points shall be noted:

a) a horizontal platform with appropriate support to secure the samplers against gusty wind should be provided;

b) no two samplers should be placed less than 2 meters apart;

c) the distance between the sampler and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the sampler;

d) a minimum of 2 meters of separation from walls, parapets and penthouses is required for rooftop samplers;

e) a minimum of 2 meters separation from any supporting structure, measured horizontally is required;

f) no furnace or incinerator flue is nearby;

g) airflow around the sampler is unrestricted;

h) the sampler is more than 20 meters from the dripline;

i) any wire fence and gate, to protect the sampler, should not cause any obstruction during monitoring;

j) permission must be obtained to set up the samplers and to obtain access to the monitoring stations; and

k) a secured supply of electricity is needed to operate the samplers.

F2.3 Mitigation Measures

F2.3.1 As described in the EIA Report, the ASRs from Central to Causeway Bay would comply with AQO and EIAO-TM criteria during construction. In order to achieve the air quality criteria, watering with complete coverage of active construction area four times a day and requirements of the Air Pollution Control (Construction Dust) Regulation shall be adhered to during the construction period. In addition, the following mitigation measures and good site practices are proposed to minimise cumulative dust impacts.

· Strictly limit the truck speed on site to below 10 km per hour and water spraying to keep the haul roads in wet condition;

· Watering during excavation and material handling;

· Provision of vehicle wheel and body washing facilities at the exit points of the site, combined with cleaning of public roads where necessary; and

· Tarpaulin covering of all dusty vehicle loads transported to, from and between site locations.

F2.3.1 For the dredging activities carrying out in the vicinity of Police Officers’ Club, the dredging operation will be restricted to only 1 small close grab dredger to minimise the odour impact during the dredging activity. The dredging rate should be reduced as much as practicable for area in close proximity to the Police Officers’ Club. Grab dredger has to be used for filling up the geosynthetic containers on barges. As there is no constraint on the programme for the removal of the sediments at the south-west corner of the typhoon shelter in the vicinity of Police Officers’ Club, the dredging rate can be slowed down or restricted to specific non-popular hours in weekdays when it is necessary during construction.

F2.3.2 If the above measures are not sufficient to restore the air quality to acceptable levels upon the advice of ET Leader, the Contractor shall liaise with the ET Leader on some other mitigation measures, propose to ER for approval, and implement the mitigation measures.

F2.3.3 The implementation schedule for the mitigation measures during construction phase is presented in Section F9.

F3 NOISE

F3.1 Construction Phase

F3.1.1 Construction noise impacts arising from DP3 are predicted at the identified NSRs. Noise mitigation measures would be required to reduce noise levels to the stipulated standard. A noise monitoring programme shall be undertaken to ensure such mitigation measures would be implemented properly.

F3.1.2 The locations of construction noise monitoring stations are summarized in Table F3.1 and shown in Figure 3.2.

Table F3.1 Construction Noise Monitoring Stations

Noise Monitoring Station	NSR ID (Based on EIA Report)	Noise Monitoring Location
M1	N2	Causeway Centre
M2	N8	Macro Polo Mansion
M3	N11	Mayson Garden
M4	N17	Harbour Heights
M5	N18	Block 10, City Garden
M6	N20	Hong Kong Baptist Church Henrietta Secondary School

F3.1.3 The status and locations of noise sensitive receivers may change after issuing this manual. If such case exists, the ET Leader shall propose updated monitoring locations and seek approval from EPD and agreement from the ER and the IEC before baseline monitoring commences.

F3.1.4 When alternative monitoring locations are proposed, the monitoring locations shall be chosen based on the following criteria:

(i) at locations close to the major site activities which are likely to have noise impacts;

(ii) close to the noise sensitive receivers; and

(iii) for monitoring locations located in the vicinity of the sensitive receivers, care shall be taken to cause minimal disturbance to the occupants during monitoring.

F3.1.5 The monitoring station shall normally be at a point 1 m from the exterior of the sensitive receiver building facade and be at a position 1.2 m above the ground. If there is problem with access to the normal monitoring position, an alternative position may be chosen, and a correction to the measurements shall be made. For reference, a correction of +3 dB(A) shall be made to the free field measurements. The ET shall agree with the IEC on the monitoring position and the corrections adopted. Once the positions for the monitoring stations are chosen, the baseline monitoring and the impact monitoring shall be carried out at the same positions.

F3.1.6 Construction noise mitigation measures for DP3 are included in Section F9.

F4 WATER QUALITY

(i) 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:

· a DO level in the range of 0 ‑ 20 mg L^-1 and 0 ‑ 200% saturation; and

· a temperature of 0 ‑ 45 degree Celsius.

(ii) It should have a membrane electrode with automatic temperature compensation complete with a cable.

(iii) Should salinity compensation not be built-in to the DO equipment, in-situ salinity should be measured to calibrate the DO equipment prior to each DO measurement.

Turbidity Measurement Instrument

F4.2.1 The instrument should be a portable and weatherproof turbidity measuring instrument using a DC power source. It should have a photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU (for example, Hach model 2100P or an approved similar instrument).

Sampler

F4.2.2 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).

Water Depth Detector

F4.2.3 A portable, battery-operated echo sounder 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.

Salinity

F4.2.4 A portable salinometer capable of measuring salinity in the range of 0 - 40 parts per thousand (ppt) should be provided for measuring salinity of the water at each monitoring location.

Sample Containers and Storage

F4.2.5 Water samples for SS should be stored in high density polythene bottles with no preservative added, 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 Table F4.1.

Monitoring Position Equipment

F4.2.6 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 instrument of similar accuracy, should be provided and used during marine water monitoring to ensure the monitoring vessel is at the correct location before taking measurements.

Calibration of In-Situ Instruments

F4.2.7 The pH meter, DO meter and turbidimeter shall be checked and calibrated before use. DO meter and turbidimeter shall be certified by a laboratory accredited under HOKLAS or any other international accreditation scheme, and subsequently re-calibrated at 3 monthly intervals throughout all stages of the water quality monitoring. Responses of sensors and electrodes should be checked with certified standard solutions before each use. Wet bulb calibration for a DO meter shall be carried out before measurement at each monitoring location.

F4.2.8 Sufficient stocks of spare parts shall be maintained for replacements when necessary. Backup monitoring equipment shall also be made available so that monitoring can proceed uninterrupted even when some equipment is under maintenance, calibration, etc.

F4.3 Laboratory Measurement / Analysis

F4.3.1 Duplicate samples from each independent sampling event are required by EPD for all parameters. Analysis of suspended solids shall be carried out in a HOKLAS or other international accredited laboratory. Sufficient water samples shall be collected at the monitoring stations for carrying out the laboratory SS determinations, with detection limit shown in Table F4.1. The SS determination work shall start within 24 hours after collection of the water samples. The analyses shall follow the standard methods according to Table F4.1 and as described in American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater, 19th edition, unless otherwise specified.

Table F4.1 Analytical Methods to be applied to Marine Water Quality Samples

Determinant	Standard Method	Detection Limit
Suspended solids (mg L^-1)	APHA 2540 D	0.1 mg L^-1

F4.3.2 If a site laboratory is set up or a non-HOKLAS and non-international accredited laboratory is hired for carrying out the laboratory analysis, the laboratory equipment, analytical procedures, and quality control shall be approved by EPD. All the analysis shall be witnessed by the ER. The ET Leader shall provide the ER with one copy of the relevant chapters of the “APHA Standard Methods for the Examination of Water and Wastewater” 19th edition and any other relevant document for his reference.

F4.3.3 For the test methods of other parameters as recommended by EIA or required by DEP, detailed testing methods, pre-treatment procedures, instruments use, QA/QC details (such as blank, spike recovery, number of duplicate samples per batch, etc.), detection limit and accuracy shall be submitted to EPD for approval prior to the commencement of monitoring programme. The QA/QC shall be in accordance with the requirements of HOKLAS or international accredited scheme. The QA/QC results shall be reported. EPD may also request the laboratory to carry out analysis of known standards provided by EPD for quality assurance. Additional duplicate samples may be required by EPD for inter laboratory calibration. Remaining samples after analysis shall 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 EPD. In any circumstance, the sample testing shall have comprehensive quality assurance and quality control programmes. The laboratory shall prepare to demonstrate the programme to DEP or his representatives when requested.

F4.4 Monitoring Locations

F4.4.1 It is recommended to set up at selected monitoring stations at the WSD Salt Water Intake and Cooling Water Intake which could potentially be affected by the marine construction works (Figure 4.1).

F4.4.2 The monitoring stations proposed in this section are indicative subject to further review before commencement of the water quality monitoring works. The status and locations of water sensitive receivers and the marine activities may change after issuing this Manual. If such case exist, the ET Leader shall propose updated monitoring locations and seek approval from the IC(E) and EPD.

F4.4.3 The coordinates of the proposed monitoring stations are listed in Table F4.2.

Table F4.2 Proposed Marine Water Quality Monitoring Stations

Station	Description	Easting	Northing	Remark
WSD Salt Water Intake
WSD7	Kowloon South	833789.2	818076.2	-
WSD9	Tai Wan	838026.1	818209.7	-
WSD10	Cha Kwo Ling	841386.4	817728.4	-
WSD11	Yau Tong	842110.3	816861.7	-
WSD15	Sai Wan Ho	841039.6	816473.0	-
WSD17	Quarry Bay	839740.4	817032.2	-
WSD19	Sheung Wan	832359.4	816868.8	-
WSD20	Kennedy Town	830783.7	816070.2	-
WSD21	Wan Chai	836188.8	815911.1	Impact monitoring should be ended after decommission of the intake
RW1	Wan Chai (Reprovision)	836232.0	816020.9	Impact monitoring should be began after commission of the intake
Cooling Water Intake
C1	HKCEC Extension	835885.6	816223.0	-
C2	Telecom House	835647.9	815864.4	Impact monitoring should be ended after decommission of the intake
C3	HKCEC Phase I	835836.3	815910.0	Impact monitoring should be ended after decommission of the intake
C4	Wan Chai Tower and Great Eagle Centre	835932.8	815888.2	Impact monitoring should be ended after decommission of the intake
C5	Sun Hung Kai Centre	836250.1	815932.2	Impact monitoring should be ended after decommission of the intake
C6	World Trade Centre	837009.6	815999.3	-
C7	Windsor House	837193.7	816150.0	Impact monitoring should be suspended during the period of dilution of the intake
C8	City Garden	837970.6	816957.3	-
C9	Provident Centre	838355.0	817116.6	-
RC1	Proposed HKAPA Extension	835487.7	815987.7	Impact monitoring should be began after commission of the intake
RC5	Sun Hung Kai Centre (Reprovision)	836291.4	816029.7	Impact monitoring should be began after commission of the intake
RC7	Windsor House (Temporary Dilution)	837245.2	816156.6	Impact monitoring should be hold during the period of dilution of the intake

F4.4.4 Measurements and sampling shall be taken at the appropriate vertical levels of the abstraction points of these intakes. In case silt screens are deployed at the intakes during the monitoring period, measurement and sampling shall be behind the silt screens and at the appropriate vertical levels of the abstraction points of these intakes to collect information on the mitigated water quality condition if practicable. The status and locations of water sensitive receivers and the marine activities may change after issuing this Manual. If such cases exist, the ET Leader shall propose with justification for changes to monitoring locations or other requirements of the EM&A programme, and seek approval from the IC(E) and EPD.

F4.5 Baseline Monitoring

F4.5.1 Baseline conditions for marine water quality should be established and agreed with EPD prior to the commencement of marine works. The purpose of the baseline monitoring is to establish ambient conditions prior to the commencement of the dredging works and to demonstrate the suitability of the proposed monitoring stations.

F4.5.2 The baseline conditions should be established by measuring turbidity and suspended solids levels at the selected monitoring stations including control stations as shown in Table F4.2. The baseline monitoring schedule should be submitted to EPD at least 2 weeks before commencement of monitoring for agreement. EPD should also be notified immediately for any changes in schedule.

F4.5.3 The measurements 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 dredging works. Any marine construction works should be avoided in the vicinity of the stations during the baseline monitoring. The interval between 2 sets of monitoring should not be less than 36 hours. Duplicate in-situ measurements and water sampling should be carried out in each sampling event. For selection of tides for in-situ measurement and water sampling, tidal range of individual flood and ebb tides should be not less than 0.5 m.

F4.6 Impact Monitoring

F4.6.1 During the period of marine construction works, monitoring should be undertaken three days per week, at mid-flood and mid-ebb tides, with sampling/measurement at the designated monitoring stations as shown in Table F4.2. 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 F4.3 shows the proposed monitoring frequency and water quality parameters. Duplicate in-situ measurements and water sampling should be carried out in each sampling event. For selection of tides for in-situ measurement and water sampling, tidal range of individual flood and ebb tides should be not less than 0.5 m.

Table F4.3 Proposed Marine Water Quality Monitoring Frequency and Parameters

Activities	Monitoring Frequency ^{Note 1}	Key Parameters ^{Note 2}
During the 4-week baseline monitoring period	Three days per week, at mid-flood and mid-ebb tides	Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, temperature, salinity
During marine construction works	Three days per week, at mid-flood and mid-ebb tides	Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, temperature, salinity
After completion of marine construction works	Three days per week, at mid-flood and mid-ebb tides	Turbidity, Suspended Solids (SS), Dissolved Oxygen (DO), pH, temperature, salinity

Notes:

1. For selection of tides for in-situ measurement and water sampling, tidal range of individual flood and ebb tides should be not less than 0.5 m.

2. Turbidity should be measured in situ whereas SS should be determined by laboratory.

F4.6.2 The proposed water quality monitoring schedule should be passed to EPD at least 1 week before the first day of the monitoring. EPD should also be notified immediately for any changes in schedule. If the monitoring data collected at the flushing water intakes indicate that the Action or Limit levels as shown in Table F4.5 are exceeded, appropriate actions should be taken to stop the dredging works and mitigation measures such as slowing down, or rescheduling of works should be implemented as necessary. A turbidity meter should be installed at the intake of Wan Chai Salt Water Pumping Station so that WSD can check the turbidity any time and take remedial measures if the limits as shown in Table F4.5 are exceeded.

Regular Maintenance of Silt Screens

F4.6.3 Silt screens are recommended to be deployed at selected WSD flushing water intakes during the marine works period. The operation of the flushing water intakes would not be adversely affected by the silt screens provided that the silt screens are properly designed and maintained. Installation of silt screens at the selected flushing water intake points shall be implemented by the contractor for the marine works. The contractor shall demonstrate and ensure that the design of the silt screen will not affect the normal operation of flushing water intake. The contractor shall obtain consensus from all relevant parties, including WSD and Marine Department, on the design of the silt screen at each of the selected flushing water intake points before installation of the silt screen and commencement of the proposed marine works. The proposed water quality monitoring and audit shall be implemented by the contractor to ensure that the proposed works do not result in unacceptable impacts at the WSD flushing water intakes. As a mitigation measure to avoid the pollutant and refuse entrapment problems and to ensure that the impact monitoring results are representative, regular maintenance of the silt screens and refuse collection should be performed by the contractor at the silt screens at regular intervals on a daily basis. The Contractor should be responsible for keeping the water behind the silt screen free from floating rubbish and debris during the impact monitoring period. The contractor should be responsible for keeping the water behind the silt screen from floating rubbish and debris before the silt screens are removed.

F4.7 Post-construction Monitoring

F4.7.1 Upon completion of all marine-based construction activities, a post-project monitoring exercise on water quality shall be carried out for four weeks in the same manner as the impact monitoring as described in Section F4.6.

F4.8 Field Log

F4.8.1 Other relevant data should also be recorded, including monitoring location / position, time, water depth, sampling depth, pH, salinity, DO saturation, water temperature, tidal stages, weather conditions and any special phenomena or work underway nearby.

F4.8.2 A sample data record sheet is shown in Appendix B4 for reference.

F4.9 Construction Site Audits

F4.9.1 Implementation of regular site audits is to ensure that the recommended mitigation measures are to be properly undertaken during proposed marine construction works. It can also provide an effective control of any malpractices and therefore achieve continual improvement of environmental performance on site.

Site Inspection

F4.9.2 Site inspections 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 attached in Section F9. In the event that the recommended mitigation measures are not fully or properly implemented, deficiency shall be recorded and reported to the site management. Suitable actions are to be carried out to:

· Record the problems and investigate the causes;

· Issue action notes to the 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 Contractor for preventive actions.

Compliance Audits

F4.9.3 Compliance audits are to be undertaken to ensure that a valid discharge license has been issued by EPD prior to the discharge of effluent from the Project site. If monitoring of the treated effluent quality from the Works Areas is required during the construction phase of the Project, the monitoring should be carried out in accordance with the WPCO license which is under the ambit of regional office (RO) of EPD. The audit results reflect whether the effluent quality is in compliance with the discharge license requirements. In case of non-compliance, suitable actions by the relevant parties should be undertaken to:

· Notify the site management on the non-compliance;

· Identify the sources of pollution;

· Check the implementation status of the recommended mitigation measures;

· Investigate the operating conditions of the on-site treatment systems;

· Implement corrective and remedial actions to improve the effluent quality;

· Increase monitoring frequency until the effluent quality is in compliance with the discharge licence requirements; and

· Record the non-compliance and propose preventive measures.

F4.10 Event and Action Plan for Construction Water Quality

F4.10.1 The water quality assessment criteria, namely Action and Limit levels are shown in Table F4.4. When exceedances of water quality assessment criteria are detected at any designated monitoring stations, carry out the actions in accordance with the Action Plan in Table F4.5 is recommended.

F4.10.2 The ET Leader should assess the potential impacts caused by dredging or filling works on the seawater intakes based on the monitoring data. The performance of the environmental management system (i.e. of the overall EM&A programme) should be reviewed by the ET Leader on a quarterly basis. The findings of this review should be included in the quarterly EM&A summary reports, together with any recommendations to improve the performance of the EM&A programme.

Table F4.4 Action and Limit Levels for Marine Water Quality at Seawater Intakes

Parameters	Action	Limit
WSD Salt Water Intake
SS in mg L^-1	95 percentile of baseline data or >9.5 mg/l	99 percentile of baseline data or >10mg/l
Turbidity in NTU	95 percentile of baseline data or >9.5 NTU	99 percentile of baseline data or >10NTU
DO in mg/L	95 percentile of baseline data or <2.1 mg/l	99 percentile of baseline data or <2mg/l
Cooling Water Intake
SS in mg L^-1	95 percentile of baseline data	99 percentile of baseline data
Turbidity in NTU	95 percentile of baseline data	99 percentile of baseline data
DO in mg/L	95 percentile of baseline data	99 percentile of baseline data

Notes:

1. It is recommended to conduct the monitoring behind the silt screens and at the appropriate vertical levels of the abstraction points of these intakes

2. For turbidity and SS, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

3. All the figures given in the table are used for reference only and the EPD may amend the figures whenever it is considered as necessary.

F4.10.3 If monitoring results indicate that the dredging or filling works have caused an adverse impact on water quality at the WSD saltwater intakes or cooling water intakes, it is recommended that the contractor should inform WSD and the owners of cooling water intakes. The contractor, the ET and the IEC should inform WSD immediately if an adverse impact on water quality has been caused or the monitoring results reach the action level at the WSD saltwater intakes. Additional mitigation measures should be recommended to rectify the non-compliance or the construction programme should be carefully reviewed to slow down the rate of dredging or filling. A turbidity meter should be installed at the intake of Wan Chai Salt Water Pumping Station so that WSD can check the turbidity any time and take remedial measures if the limits are exceeded.

F4.10.4 Where necessary, EPD routine marine water quality monitoring data at the relevant station(s), dry and wet seasons inclusive, could also be used to established the baseline water quality.

F4.11 Mitigation of Adverse Environmental Impacts

F4.11.1 Mitigation measures for water quality control have been recommended in the EIA Report. The Contractor should be responsible for the design and implementation of these measures.

F4.11.2 Recommended mitigation measures to minimize the adverse impacts on water quality during the proposed dredging are listed in the implementation schedule given in Section F9.

EVENT	ACTION
Action level being exceeded by one sampling day	Repeat in-situ measurement to confirm findings; Identify source(s) of impact; Inform IC(E) and Contractor; Check monitoring data, all plant, equipment and Contractor's working methods; Discuss mitigation measures with IC(E) and Contractor; (The above actions should be taken within 1 working day after the exceedance is identified) Repeat measurement on next day of exceedance.	Discuss with ET and Contractor on the mitigation measures; Review proposals on mitigation measures submitted by Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with IC(E) on the proposed mitigation measures; Make agreement on the mitigation measures to be implemented. (The above actions should be taken within 1 working day after the exceedance is identified)	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 IC(E) and propose mitigation measures to IC(E) and ER; Implement the agreed mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)
Action level being exceeded by more than one consecutive sampling days	Identify source(s) of impact; Inform IC(E) and Contractor; Check monitoring data, all plant, equipment and Contractor's working methods; Discuss mitigation measures with IC(E) and Contractor; Ensure mitigation measures are implemented; Prepare to increase the monitoring frequency to daily; (The above actions should be taken within 1 working day after the exceedance is identified) Repeat measurement on next working day of exceedance.	Discuss with ET and Contractor on the mitigation measures; Review proposals on mitigation measures submitted by Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with IC(E) on the proposed mitigation measures; Make agreement on the mitigation measures to be implemented; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Inform the Engineer 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 IC(E) and propose mitigation measures to IC(E) and ER within 3 working days; Implement the agreed mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)
Limit level being exceeded by one sampling day	Repeat in-situ measurement to confirm findings; Identify source(s) of impact; Inform IC(E), contractor and EPD; Check monitoring data, all plant, equipment and Contractor's working methods; Discuss mitigation measures with IC(E), ER and Contractor; Ensure mitigation measures are implemented; Increase the monitoring frequency to daily until noexceedance of Limit level. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with ET and Contractor on the mitigation measures; Review proposals on mitigation measures submitted by Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with IC(E), ET and Contractor on the proposed mitigation measures; Request Contractor to critically review the working methods; Make agreement on the mitigation measures to be implemented; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Inform the Engineer 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 , IC(E) and ER and propose mitigation measures to IC(E) and ER within 3 working days; Implement the agreed mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)
Limit level being exceeded by more than one consecutive sampling days	Identify source(s) of impact; Inform IC(E), contractor and EPD; Check monitoring data, all plant, equipment and Contractor's working methods; Discuss mitigation measures with IC(E), ER and Contractor; Ensure mitigation measures are implemented; Increase the monitoring frequency to daily until no exceedance of Limit level for two consecutive days. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with ET and Contractor on the mitigation measures; Review proposals on mitigation measures submitted by Contractor and advise the ER accordingly; Assess the effectiveness of the implemented mitigation measures. (The above actions should be taken within 1 working day after the exceedance is identified)	Discuss with IC(E), ET and Contractor on the proposed mitigation measures; Request 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 Contractor to slow down or to stop all or part of the marine work until no exceedance of Limit level. (The above actions should be taken within 1 working day after the exceedance is identified)	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 , IC(E) and ER and propose mitigation measures to IC(E) and ER within 3working days; Implement the agreed mitigation measures; As directed by the Engineer, to slow down or to stop all or part of the marine work or construction activities. (The above actions should be taken within 1 working day after the exceedance is identified)

F5 WASTE MANAGEMENT

F5.1 Waste Control and Mitigation Measures

F5.1.1 Mitigation measures for waste management of the DP3 are summarised below. The Implementation Schedule of the recommended mitigation measures for DP3 is presented in Section F9. In order to ensure that the mitigation measures are properly implemented by the Contractor, regular site inspections by the ET shall be carried out at least once per week. Details of the audit requirements are set out in Section 9 of this EM&A Manual.

Dredged Marine Sediments

F5.1.2 The basic requirements and procedures for dredged mud disposal are specified under the ETWB TCW No. 34/2002. The MFC is responsible for the provision and management of disposal capacity for dredged/excavated sediment, and DEP is responsible for the issue of permits for marine disposal under the provisions of the Dumping at Sea Ordinance (Cap. 466).

F5.1.3 The dredged marine sediments would be loaded onto barges, transported to and disposed of at the designated disposal sites at South of Cheung Chau, East of Ninepin, East of Tung Lung Chau, South of Tsing Yi and East of Sha Chau to be allocated by the MFC depending on their level of contamination or at other disposal sites after consultation with the MFC and EPD. Based on the chemical screening results, the majority of the marine sediment to be dredged was classified as contaminated and would require Type 2 confined marine disposal. In accordance with the ETWB TCW No. 34/2002, the contaminated material must be dredged and transported with great care, and the mitigation measures recommended in Section F4 of this Report should be strictly followed. Furthermore, the dredged contaminated sediment must be effectively isolated from the environment upon final disposal and the project proponent will consult the MFC about the disposal requirement.

F5.1.4 Based on the biological screening results, the Category H (>10xLCEL) sediment which failed the biological testing would require Type 3 special disposal. The volume of Category H sediment from the Causeway Bay typhoon shelter which would require special disposal arrangements is estimated to be approximately 0.05 Mm³. It was agreed with EPD during the WDII Comprehensive Feasibility Study (CFS) that special disposal arrangements, rather than pre-treatment, would be appropriate provided there would be negligible loss of sediment to the marine environment during the dumping operations.^([1]) A detailed review of possible special disposal arrangements for the contaminated sediment was carried out in the WDII CFS with the objective of keeping the loss of sediment to the surrounding marine environment to a negligible extent. The method pursued as having the least potential for loss of contaminants to the marine environment is by containment of the sediments in geosynthetic containers. A feasible containment method is proposed whereby the dredged sediments are sealed in geosynthetic containers and, at the disposal site, the containers would be dropped into the designated contaminated mud pit where they would be covered by further mud disposal and later by the mud pit capping, thereby meeting the requirements for fully confined mud disposal. The technology is readily available for the manufacture of the geosynthetic containers to the project-specific requirements. Similar disposal methods have been used for projects in Europe, the USA and Japan (for example, geosynthetic fabric containers have been used to contain contaminated dredged sediment at Marina Del Rey in California and Yokohama Port in Japan) and the issues of fill retention by the geosynthetic fabrics, possible rupture of the containers and sediment loss due to impact of the container on the seabed have been addressed.^([2]) The recommended field trials were undertaken during the WDII Design and Construction (D&C) consultancy (Agreement No. CE54/2001 (CE)) using uncontaminated mud to demonstrate the feasibility of the proposed method.

F5.1.5 The ACE Report^([3]) [to be endorsed by ACE] on the field trials of geosynthetic containers concluded that disposal by sealing the dredged sediments in geosynthetic containers and dropping these containers into the contaminated mud pits at East Sha Chau has been shown to be a successful and viable disposal method. The use of a geosynthetic container system for special disposal was considered to be an effective system with negligible loss of contaminants to the marine environment during disposal. The container design and handling method were refined through the field trials for the determination of the optimal design and handling method.

F5.1.6 It will be the responsibility of the Contractor to satisfy the appropriate authorities that the contamination levels of the marine sediment to be dredged have been analysed and recorded. According to the ETWB TCW No. 34/2002, this will involve the submission of a formal Sediment Quality Report to the DEP, at least 3 months prior to the dredging contract being tendered.

F5.1.7 During transportation and disposal of the dredged marine sediments requiring Type 1 and Type 2 disposal, the following measures should be taken to minimise potential impacts on water quality:

· Bottom opening of barges shall be fitted with tight fitting seals to prevent leakage of material.

· Monitoring of the barge loading shall be conducted to ensure that loss of material does not take place during transportation. Transport barges or vessels shall be equipped with automatic self-monitoring devices as specified by the DEP.

F5.1.8 Barges or hopper barges shall not be filled to a level that would cause the overflow of materials or sediment laden water during loading or transportation.

Good Site Practices

F5.1.9 Adverse impacts related to waste management are not expected to arise, provided that good site practices are strictly followed. Recommendations for good site practices during the construction activities include:

· Nomination of an approved person, such as a site manager, to be responsible for good site practices, arrangements for collection and effective disposal to an appropriate facility, of all wastes generated at the site.

· Training of site personnel in proper waste management and chemical waste handling procedures.

· Provision of sufficient waste disposal points and regular collection for disposal.

· Appropriate measures to minimise windblown litter and dust during transportation of waste by either covering trucks or by transporting wastes in enclosed containers.

· Regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors.

· A recording system for the amount of wastes generated, recycled and disposed of (including the disposal sites).

Waste Reduction Measures

F5.1.10 Good management and control can prevent the generation of a significant amount of waste. Waste reduction is best achieved at the planning and design stage, as well as by ensuring the implementation of good site practices. Recommendations to achieve waste reduction include:

· Sort C&D waste from demolition of the existing waterfront structures to recover recyclable portions such as metals.

· Segregation and storage of different types of waste in different containers, skips or stockpiles to enhance reuse or recycling of materials and their proper disposal.

· Encourage collection of aluminium cans, PET bottles and paper by providing separate labelled bins to enable these wastes to be segregated from other general refuse generated by the work force.

· Any unused chemicals or those with remaining functional capacity shall be recycled.

· Use of reusable non-timber formwork, such as in casting the tunnel box sections, to reduce the amount of C&D material.

· Proper storage and site practices to minimise the potential for damage or contamination of construction materials.

· Plan and stock construction materials carefully to minimise amount of waste generated and avoid unnecessary generation of waste.

F5.1.11 In addition to the above measures, specific mitigation measures are recommended below for the identified waste arisings to minimise environmental impacts during handling, transportation and disposal of these wastes.

General Refuse

F5.1.12 General refuse should be stored in enclosed bins or compaction units separate from C&D material. A licensed waste collector should be employed by the contractor to remove general refuse from the site, separately from C&D material. Preferably an enclosed and covered area should be provided to reduce the occurrence of 'wind blown' light material.

Chemical Wastes

F5.1.13 After use, chemical wastes (for example, cleaning fluids, solvents, lubrication oil and fuel) should be handled according to the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes. Spent chemicals should be collected by a licensed collector for disposal at the CWTF or other licensed facility, in accordance with the Waste Disposal (Chemical Waste) (General) Regulation.

Construction and Demolition Material

F5.1.14 The C&D material should be sorted on-site into inert C&D material (that is, public fill) and C&D waste. Considering that a large quantity of C&D material will be generated from the demolition works and in order to minimise the impact resulting from collection and transportation of material for off-site disposal, it is recommended that the inert C&D material should be re-used on-site in the reclamation works as far as practicable. All the suitable (inert) material should be broken down to 250 mm in size for reuse as public fill and surcharge in the WDII reclamation. C&D waste, such as wood, glass, plastic, steel and other metals should be reused or recycled and, as a last resort, disposed of to landfill. It is recommended that a suitable area be designated to facilitate the sorting process and a temporary stockpiling area will be required for the separated materials.

F5.1.15 In order to monitor the disposal of public fill and C&D waste at public fill reception facilities and landfills, respectively, and to control fly tipping, a trip-ticket system should be included as one of the contractual requirements and implemented by an Environmental Team undertaking the Environmental Monitoring and Audit work. An Independent Environmental Checker should be responsible for auditing the results of the system.

F6 LAND CONTAMINATION

F6.1.1 As no land contamination impacts were identified for both construction and operational phase of the Project, EM&A works for land contamination were therefore considered not necessary.

F7 MARINE ECOLOGY

F7.1 Introduction

F7.1.1 The marine ecological impact assessment conducted for this Study concluded that impacts from the proposed development were mainly associated with the direct loss of marine habitats due to dredging and reclamation works in the Victoria Harbour. In terms of ecological importance, the assessment indicated that the affected habitats were generally of very low ecological value and no adverse ecological impacts on marine ecological resources are expected to occur.

F7.1.2 Nevertheless, it is recommended to avoid direct loss or damage of any species of conservation interest within the proposed reclamation areas as far as possible. Translocation of all the existing coral colonies found at the coastlines within ex-PCWA Basin and along seawall at North Point is recommended in the marine ecological impact assessment.

F7.1.3 Other indirect impacts on marine ecology arising from this project are considered temporary and minimal in nature. With the implementation of appropriate mitigation measures (e.g. water quality and noise control measures, coral translocation and re-construction of new artificial seawalls), it was concluded that adverse impact on marine life and other species of conservation interest such as corals would not occur during the construction and operation of the project. Nevertheless, post-translocation coral monitoring is proposed as an additional measure to verify the effectiveness of the coral translocation measure.

F7.2 Mitigation measures for corals

F7.2.1 Recent dive surveys revealed that coral within subtidal habitat that would be directly affected by the proposed reclamation works was low in species diversity (only two species, Oulastrea crispata and Echinomuricea sp.) and coverage (1 – 5%), with only small colonies and common species recorded. The subtidal habitat was therefore considered as low ecological value. Nevertheless, those 19 coral colonies identified in recent survey were attached to small movable boulders and are practically feasible for translocation. In addition, the recorded corals are not competitive and aggressive species which are not expected to have any negative pressure on the other existing corals in the coral translocation recipient site and are therefore considered suitable for translocation. Coral translocation exercise has been successfully carried out in other part of Hong Kong water in the past project (Black & Veatch, 2005, Proposed Extension of Public Golf Course at Kau Sai Chau Island, Sai Kung.) and post-translocation monitoring showed that no adverse impacts on the transplanted coral were resulted from the translocation exercise.

F7.2.2 In this Project, the assessment recommended to translocate all these 19 potentially affected coral colonies found at coastlines within ex-PCWA Basin (Site 13) and along seawall at North Point (Site 27) (Figure 7.1 & 7.2) to the nearby suitable habitats. To maximize the successfulness of this translocation exercise, the coral recipient sites should be as near as possible to the existing coral site and with similar healthy coral communities of the same species as well as similar hydrographic condition. Three possible recipient sites are identified in the vicinity of the assessment area (Victoria Harbour, Junk Bay and Clearwater Bay) and Junk Bay is considered as the most suitable option and be suggested as marine waters of the Victoria Harbour might be subjected to potential impact from future development including some marine works in the Central and Kai Tak areas while Clearwater Bay is considered too far away from the Project site when compared with Junk Bay.

F7.2.3 A 10 m x 10 m coastal area at Junk Bay is proposed as a practical and feasible recipient site (Figure 7.3). Coral translocation to this proposed recipient site should not engage any permitting application under the Dumping at Sea Ordinance (Cap. 466) nor the Foreshore and Seabed (Reclamation) Ordinance (Cap. 127). In addition, this proposed recipient site is unleased and unallocated government land with no specific marine use and are therefore considered practically suitable for coral translocation. The proposed area (100 m²) of coral recipient site will provide sufficient space for proper placement of translocated coral colonies in the field based on rough estimate of about 20 rocks / boulders with attached coral colonies (occupying the largest area of less than 0.25 m² each) would be translocated to this recipient site. such as Junk Bay or Clearwater Bay where healthy coral communities of the same coral species were recorded. The translocation exercise should be completed conducted before the commencement of construction phase of the Project.

F7.2.4 General steps for the whole coral translocation exercise are suggested below and should be followed as far as practicable:

l Locate a suitable recipient site for transplanted corals before commencement of coral translocation works;

l Collect baseline information (e.g. total number of coral colonies to be translocated, health status, attached boulder size, etc.) of transplanted coral colonies in pre-translocation survey before commencement of coral translocation works;

l Tag the transplanted coral colonies one by one in the pre-translocation survey;

l Record the size, depth and orientation of each tagged coral colonies in the pre-translocation survey;

l Move boulders with translocated coral colonies from sea bottom to ship/boat with lifting bag;

l Submerge translocated coral colonies in large plastic bucket filled with seawater with aeration onboard;

l Transport coral colonies to recipient site as quick as possible;

l Place the transplanted coral colonies in the recipient site in similar depth and orientation as the existing coral site;

l Record information (e.g. health status, translocated location of tagged coral, etc) of transplanted coral colonies upon the completion of translocation works; and

l Carry out post-translocation monitoring on transplanted coral colonies every three months for a year after completion of coral translocation works.

F7.2.5 A detailed transplantation plan (including identification of recipient site, translocation methodology, monitoring of transplanted corals, etc.) should be drafted during the detailed design stage of the Project. The translocation plan should be proposed by the ET in agreement with the IEC and should be approved by AFCD prior to the commencement of coral translocation exercise and monitoring programme. Both coral translocation and monitoring exercise should be carried by qualified marine specialist who has suitable coral knowledge and sound experience in identifying corals in field situationsound experience and professional qualification in coral field survey, and to be approved by AFCD as well.

F7.3 Monitoring requirement

Baseline Survey

F7.3.1 Prior to the commencement of coral translocation, baseline survey of corals should be conducted at the ex-PWCA Basin (Site 13) and along seawall at North Point (Site 27) (Figure 7.1 & 7.2). All the potentially affected coral colonies should be tagged. For each tagged coral, specific detailed information should be collected including location, size, depth, attached rock/boulder size and general condition of their immediate surroundings. Tagged coral colonies should also be identified to the highest taxonomic resolution as far as practicable. The condition of each tagged coral colony should also be recorded by taking a photograph from an angle that best represents the entire colony.

F7.3.2 Information on health condition of the tagged corals should be recorded. For gorgonian coral, the percentage of branches affected by partial mortality and secretion of mucus should be recorded. For hard corals, health condition should include information on surface area with partial mortality and blanched / bleached area. Two categories of bleached area should be recorded:

l Blanched (i.e. paled)

l Bleached (i.e. bleached white)

F7.3.3 Blanched coral tissue would appear pale due a loss of zooxanthallae or photosynthetic pigments. In contrast, bleached areas would appear white due to the white colouration of the skeleton visible through the transparent coral tissue. This bleaching would occur due to total loss of zooxanthellae. The coral tissue would still be present. It is possible that the lower portions of the coral tissue remain unbleached and would therefore help in differentiating bleached areas as opposed to partial mortality areas where the coral tissue would be absent.

F7.3.4 For each tagged hard coral colony, sediment cover should be recorded including percentage cover, colouration, texture and approximate thickness of sediment on the colony itself and on adjacent hard substrate. Any contiguous patches of sediment cover >10% should be counted. To aid percentage cover estimates, a 50 cm x 50 cm quadrat equipped with 10cm spaced string grid should be used.

Coral monitoring after transplantation

F7.3.5 After translocation, the transplanted coral colonies should be regularly checked by qualified marine ecologist(s) to be approved by AFCD quarterly for one year after translocation. Detailed monitoring proposal should be drafted during the detailed design phase of the project and be approved by AFCD prior to the commencement of coral translocation.

F7.3.6 Dive surveys for post-translocation monitoring should collect the same information for tagged corals as the baseline survey. Information gathered during each post-translocation monitoring surveys should include observations on the presence, survival, and health conditions of the transplanted coral colonies. It should also include condition of the surrounding environment as well as weather, sea and tidal conditions. Each tagged coral should be photographed as far as possible maintaining the same aspect and orientation as photographs taken for the baseline survey.

F7.3.7 All tags should be removed / retrieved after the monitoring programme is completed.

Reporting

F7.3.8 A baseline survey report should be submitted to AFCD prior to the commencement of coral translocation exercise.

F7.3.9 Post-translocation monitoring report should be submitted to AFCD within 2 weeks after the completion of coral translocation and each quarterly coral monitoring survey. The results of the post-translocation monitoring surveys should be reviewed with reference to the baseline survey results and findings of the condition of surrounding environment.

F8 LANDSCAPE AND VISUAL

F8.1 Introduction

F8.1.1 The EIA has recommended landscape and visual mitigation measures to be undertaken during both the construction and operational phases of the project. This section outlines the monitoring and audit of these measures.

F8.1.2 The key landscape resources, landscape character areas and visual sensitive receivers are shown in Figures 8.1a, 8.1b, 8.2a, 8.2b, 8.3a, 8.3b, 8.3c.

F8.2 Monitoring Details

F8.2.1 The design, implementation and maintenance of landscape mitigation measures should be checked to ensure that they are fully realised and that potential conflicts between the proposed landscape measures and any other project works and operational requirements are resolved at the earliest possible date and without compromise to the intention of the mitigation measures.

Table F8.1 Monitoring Programme

Stage

Monitoring Task

Monitoring Report

Form of Approval

Frequency

Design

Monitoring of design works against the recommendations of the landscape and visual impact assessments within the EIA should be undertaken during detailed design and tender stages, to ensure that they fulfil the intentions of the mitigation measures. Any changes to the design, including design changes on site should also be checked.

Report by ER confirming that the design conforms to requirements of EP

Approved by Client

At Completion of Design Stage

Construction

Monitoring of the contractor’s operations during the construction period.

Report on Contractor's compliance, by ET

Counter-signature of report by IC(E)

Weekly

Design

F8.2.2 The mitigation measures proposed within the EIA to mitigate the landscape and visual impacts of the scheme should be embodied into the detailed engineering design and landscape design drawings and contract documents. Designs should be checked to ensure that the measures are fully incorporated and that potential conflicts with civil engineering, geo-technical, structural, lighting, signage, drainage, underground utility and operational requirements are resolved prior to construction.

Construction & Establishment Period

F8.2.3 The implementation of landscape construction works and subsequent maintenance operations during the 12-month establishment period must be supervised by fully qualified Landscape Resident Site Staff (Registered Landscape Architect or Professional Member of the Hong Kong Institute of landscape Architects).

F8.2.4 Measures to mitigate landscape and visual impacts during construction should be checked to ensure compliance with the intended aims of the measures.

F8.2.5 The progress of the engineering works shall be regularly reviewed on site to identify the earliest practical opportunities for the landscape works to be undertaken.

F8.3 Baseline Monitoring

F8.3.1 A photographic record of the site at the time of the contractor’s possession of the site shall be prepared by the Contractor and approved by the ER. The approved photographic Record shall be submitted to the Project proponent, ET, IC(E) and EPD for record.

F8.4 Event/Action Plan for Landscape and Visual Works

F8.4.1 Should non-compliance of the landscape and visual impacts occur, actions in accordance with the action plan stated in Table F8.2 and F8.3 should be carried out.

Table F8.2 Construction & Establishment Periods

EVENT

ACTION LEVEL

ACTION

IC(E)

CONTRACTOR

Design Check

· Check final design conforms to the requirements of EP and prepare report.

· Check report.

· Recommend remedial design if necessary

· Undertake remedial design if necessary

Non-conformity on one occasion

· Identify Source

· Inform IC(E) and ER

· Discuss remedial actions with IC(E), ER and Contractor

· Monitor remedial actions until rectification has been completed

· Check report

· Check Contractor's working method

· Discuss with ET and Contractor on possible remedial measures

· Advise ER on effectiveness of proposed remedial measures.

· Check implementation of remedial measures.

· Notify Contractor

· Ensure remedial measures are properly implemented

· Amend working methods

· Rectify damage and undertake any necessary replacement

Repeated Non-conformity

· Identify Source

· Inform IC(E) and ER

· Increase monitoring frequency

· Discuss remedial actions with IC(E), ER and Contractor

· Monitor remedial actions until rectification has been completed

· If non-conformity stops, cease additional monitoring

· Check monitoring report

· Check Contractor's working method

· Discuss with ET and Contractor on possible remedial measures

· Advise ER on effectiveness of proposed remedial measures

· Supervise implementation of remedial measures.

· Notify Contractor

· Ensure remedial measures are properly implemented

· Amend working methods

· Rectify damage and undertake any necessary replacement

F8.5 Mitigation Measures

F8.5.1 The landscape and visual impact assessment of the EIA recommends a series on mitigation measures, as noted below:

Landscape and Visual Mitigation Measures during Construction Phase

· Control night-time lighting (CM5);

· Erection of decorative hoardings (CM6).

Landscape and Visual Mitigation Measures during Operation Phase

· Aesthetic design of proposed waterfront promenade (OM4).

F9 IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES

Table F9.1 Implementation Schedule for Air Quality Control

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Des	C	O	Dec	Relevant Legislation and Guidelines
Construction Phase
S3.6.5	Four times a day watering of the work site with active operations.	Work site / during construction	Contractor		Ö			EIAO-TM
S3.8.1	Implementation of dust suppression measures stipulated in Air Pollution Control (Construction Dust) Regulation. The following mitigation measures, good site practices and a comprehensive dust monitoring and audit programme are recommended to minimise cumulative dust impacts. · Strictly limit the truck speed on site to below 10 km per hour and water spraying to keep the haul roads in wet condition; · Watering during excavation and material handling; · Provision of vehicle wheel and body washing facilities at the exit points of the site, combined with cleaning of public roads where necessary; and	Work site / during construction	Contractor		Ö
	· Tarpaulin covering of all dusty vehicle loads transported to, from and between site locations.


S3.5.5	For the dredging activities carried out in the vicinity of Police Officers’ Club, the dredging operation will be restricted to only 1 small close grab dredger to minimise the odour impact during the dredging activity. The dredging rate should be reduced as much as practicable for the area in close proximity to the Police Officers’ Club. The sediments contain highly contaminated mud which may be disposed with the use of geosynthetic containers (details shall refer to Section 6), grab dredger has to be used for filling up the geosynthetic containers on barges. the dredging rate for the removal of the sediments at the south-west corner of the typhoon shelter shall be slowed down or restricted to specific non-popular hours in weekdays when it is necessary during construction.	Corner of CBTS/implementation of harbour-front enhancement	CEDD[4]		Ö			EIAO-TM

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

Table F9.2 Implementation Schedule for Noise Control

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Des	C	O	Dec	Relevant Legislation and Guidelines
*Construction Phase*
S4.9.3	Good Site Practice: Ÿ Only well-maintained plant shall be operated on-site and plant shall be serviced regularly during the construction program. Ÿ Silencers or mufflers on construction equipment shall be utilized and shall be properly maintained during the construction program. Ÿ Mobile plant, if any, shall be sited as far away from NSRs as possible. Ÿ Machines and plant (such as trucks) that may be in intermittent use shall be shut down between works periods or shall be throttled down to a minimum. Ÿ Plant known to emit noise strongly in one direction shall, wherever possible, be orientated so that the noise is directed away from the nearby NSRs. Ÿ Material stockpiles and other structures shall be effectively utilized, wherever practicable, in screening noise from on-site construction activities.	Work Sites / During Construction	Contractor		Ö			EIAO-TM, NCO
S4.8.3	Use of quiet powered mechanical equipment for the following task: · Filling behind seawall · Seawall construction	Work Sites / During Construction	Contractor		Ö			EIAO-TM, NCO

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

Table F9.3 Implementation Schedule for Water Quality Control

EIA Ref

Environmental Protection Measures / Mitigation Measures

Location / Timing

Implementation Agent

Implementation Stages*

Relevant Legislation and Guidelines

Des

Dec

Construction Phase

S5.8

A phased reclamation approach is planned for the WDII. Containment of fill within each of the reclamation phases by seawalls is proposed, with the seawall constructed first (above high water mark) with filling carried out behind the completed seawalls. Any gaps that may need to be provided for marine access will be shielded by silt curtains to control sediment plume dispersion away from the site. Filling for seawall construction should be carried out behind the silt curtain

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8

Dredging shall be carried out by closed grab dredger for the following works:

· Seawall construction in all the reclamation areas;

· Construction of the CWB Tunnel

· Construction of the proposed WSD water mains; and

· Construction of the proposed Wan Chai East sewage outfall pipelines.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

Dredging for the Wan Chai East sewage outfall pipelines shall not be carried out concurrently with the following activities:

· Dredging along the proposed WSD water mains;

· Dredging along the seawall in the Wan Chai Reclamation (WCR) zone (area between HKCEC Extension and PCWA).

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8

The water body behind the temporary reclamations within the Causeway Bay typhoon shelter shall not be fully enclosed.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8

As a mitigation measure, to avoid the accumulation of water borne pollutants within the temporary embayment between CRIII and HKCEC1, an impermeable barrier, suspended from a floating boom on the water surface and extending down to the seabed, will be erected by the contractor before the HKCEC1 commences. The barrier will channel the stormwater discharge flows from Culvert L to the outside of the embayment. The contractor will maintain this barrier until the reclamation works in HKCEC2W are carried out and the new Culvert L extension is constructed.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

The total dredging rates in each of the marine works zones shall not be more than the maximum production rates stated in the table below. These are the production rates without considering the effect of silt curtain.

Reclamation Area		Maximum Dredging Rate		Maximum Dredging Rate (m³ per week)
Reclamation Area		m³ per day	m³ per hour (for 16 hours per day)	Maximum Dredging Rate (m³ per week)
Dredging along seawall or breakwater
North Point Shoreline Zone (NPR)		6,000	375	42,000
Causeway Bay Shoreline Zone	TBW	1,500	94	10,500
Causeway Bay Shoreline Zone	TCBR	6,000	375	42,000
PCWA Zone		5,000	313	35,000
Wan Chai Shoreline Zone (WCR)		6,000	375	42,000
HKCEC Shoreline Zone (HKCEC)	HKCEC Stage 1 & 3	1,500	94	10,500
HKCEC Shoreline Zone (HKCEC)	HKCEC Stage 2	6,000	375	42,000
Cross Harbour Water Mains		1,500	94	10,500
Wan Chai East Submarine Sewage Pipeline		1,500	94	10,500

Note: 1,500 m³ per day shall be applied for construction of the western seawall of WCR1.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

Dredging along the seawall at WCR1 shall be undertaken initially at 1,500m³ per day for construction of the western seawall (which is in close proximity of the WSD intake), followed by partial seawall construction at the western seawall (above high water mark) to protect the adjacent intakes as much as possible from further dredging activities.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

For dredging within the Causeway Bay typhoon shelter, seawall shall be partially constructed to protect the nearby seawater intakes from further dredging activities. For example, at TCBR1W, the southern and eastern seawalls shall be constructed first (above high water mark) so that the seawater intakes at the inner water would be protected from the impacts from the remaining dredging activities along the northern boundary.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

Silt curtains shall be deployed around the closed grab dredgers during seawall dredging and seawall trench filling in the areas of HKCEC, WCR, TCBR and NP.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8, Figure 5.3

Silt screens shall be applied to seawater intakes at interim construction stages as stated below:

Interim Construction Stage	Location of Applications
Scenario 2A in early 2009 with concurrent dredging activities at HKCEC, WCR, TPCWA, TBW, NP and Water Mains Zone	WSD saltwater intakes at Sai Wan Ho, Quarry Bay, Sheung Wan, Wan Chai, Kowloon South Cooling water intakes for Hong Kong Convention and Exhibition Centre Extension, Hong Kong Convention and Exhibition Centre Phase I, Telecom House / HK Academy for Performing Arts / Shun On Centre, Wan Chai Tower / Revenue Tower / Immigration Tower and Sun Hung Kai Centre
Scenario 2B in late 2009/2010 with concurrent dredging activities at Sewage Pipelines Zone and TCBR.	WSD saltwater intakes at Sheung Wan, Wan Chai Cooling water intakes for Queensway Government Offices, Excelsior Hotel, World Trade Centre and Windsor House.
Scenario 2C in 2011 with concurrent dredging activities at HKCEC and TCBR.	WSD saltwater intakes at Sheung Wan and Reprovisioned WSD Wan Chai saltwater intake. Cooling water intakes for MTR South, Excelsior Hotel & World Trade Centre and reprovisioned Windsor House.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8

Other mitigation measures include:

· mechanical grabs, if used, shall be designed and maintained to avoid spillage and sealed tightly while being lifted. For dredging of any contaminated mud, closed watertight grabs must be used;

Work site / During the construction period

Contractor

ProPECC PN 1/94;

WPCO (TM-DSS)

· all vessels shall be sized so that adequate clearance is maintained between vessels and the seabed in all tide conditions, to ensure that undue turbidity is not generated by turbulence from vessel movement or propeller wash;

· all hopper barges and dredgers shall be fitted with tight fitting seals to their bottom openings to prevent leakage of material;

· construction activities shall not cause foam, oil, grease, scum, litter or other objectionable matter to be present on the water within the site or dumping grounds;

· loading of barges and hoppers shall be controlled to prevent splashing of dredged material into the surrounding water. Barges or hoppers shall not be filled to a level that will cause the overflow of materials or polluted water during loading or transportation; and

· before commencement of the reclamation works, the holder of Environmental Permit has to submit plans showing the phased construction of the reclamation, design and operation of the silt curtain.

S5.8

Silt screens are recommended to be deployed at the seawater intakes during the reclamation works period. Installation of silt screens at the seawater intake points may cause a potential for accumulation and trapping of pollutants, floating debris and refuse behind the silt screens and may lead to potential water quality deterioration at the seawater intake points. Major sources of pollutants and floating refuse include the runoff and storm water discharges from the nearby coastal areas. As a mitigation measure to avoid the pollutant and refuse entrapment problems and to ensure that the impact monitoring results are representative, regular maintenance of the silt screens and refuse collection shall be performed at the monitoring stations at regular intervals on a daily basis. The Contractor shall be responsible for keeping the water behind the silt screen free from floating rubbish and debris during the impact monitoring period.

Work site / During the construction period

Contractor

EIAO-TM, WPCO

S5.8

Dredging of contaminated mud is recommended as a mitigation measures for control of operational odour impact from the Causeway Bay typhoon shelter. In recognition of the potential impacts caused by dredging activities close to the seawater intakes, only 1 small close grab dredger shall be operated within the typhoon shelter (for the dredging to mitigate odour impact) at any time to minimize the potential impact. Double silt curtains shall be deployed to fully enclose the closed grab dredger during the dredging operation. In addition, an impermeable barrier, suspended from a floating boom on the water surface and extended down to the seabed, shall be erected to isolate the adjacent intakes as much as possible from dredging activities. For example, if dredging is to be carried out at the southwest corner of the typhoon shelter, physical barriers shall be erected to west of the cooling water intake for Excelsior Hotel so that the intake would be shielded from most of the SS generated from the dredging operation to the west of the intake. For area in close proximity of the cooling water intake point, the dredging rate shall be reduced as much as practicable. Site audit and water quality monitoring shall be carried out at the seawater intakes during the dredging operations. Daily monitoring of SS at the cooling water intake shall be carried out, and 24 hour monitoring of turbidity at the intakes shall be implemented during the dredging activities. If the monitoring results indicate that the dredging operation has caused significant changes in water quality conditions at the seawater intakes, appropriate actions shall be taken to stop the dredging and mitigation measures such as slowing down the dredging rate shall be implemented.

Causeway Bay typhoon shelter/Implementation of harbour-front enhancement.

CEDD[5]

WPCO

S5.8

Construction Runoff and Drainage

Exposed soil areas should be minimised to reduce the potential for increased siltation, contamination of runoff, and erosion. Construction runoff related impacts associated with the above ground construction activities can be readily controlled through the use of sediment traps and adequate maintenance of drainage systems to prevent flooding and overflow.

Construction site should be provided with adequately designed perimeter channel and pre-treatment facilities and proper maintenance. The boundaries of critical areas of earthworks should be marked and surrounded by dykes or embankments for flood protection. Temporary ditches should be provided to facilitate runoff discharge into the appropriate watercourses, via a silt retention pond. Permanent drainage channels should incorporate sediment basins or traps and baffles to enhance deposition rates. The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94.

Ideally, construction works should be programmed to minimise surface excavation works during the rainy season (April to September). All exposed earth areas should be completed as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks where practicable. If excavation of soil cannot be avoided during the rainy season, or at any time of year when rainstorms are likely, exposed slope surfaces should be covered by tarpaulin or other means.

A sediment tank constructed from pre-formed individual cells of approximately 6 ‑ 8 m3 capacity can be used for settling ground water prior to disposal;

Open stockpiles of construction materials (for examples, aggregates, sand and fill material) of more than 50 m3 should be covered with tarpaulin or similar fabric during rainstorms. Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system.

Work site / During the construction period

Contractor

ProPECC PN 1/94;

WPCO (TM-DSS)

S5.8

Manholes (including newly constructed ones) should always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system and storm runoff being directed into foul sewers.

Precautions to be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecast, and actions to be taken during or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94. Particular attention should be paid to the control of silty surface runoff during storm events.

Oil interceptors should be provided in the drainage system and regularly cleaned to prevent the release of oils and grease into the storm water drainage system after accidental spillages. The interceptor should have a bypass to prevent flushing during periods of heavy rain.

All vehicles and plant should be cleaned before leaving a construction site to ensure no earth, mud, debris and the like is deposited by them on roads. An adequately designed and located wheel washing bay should be provided at every site exit, and wash-water should have sand and silt settled out and removed at least on a weekly basis to ensure the continued efficiency of the process. The section of access road leading to, and exiting from, the wheel-wash bay to the public road should be paved with sufficient backfall toward the wheel-wash bay to prevent vehicle tracking of soil and silty water to public roads and drains.

Work site / During the construction period

Contractor

ProPECC PN 1/94;

WPCO (TM-DSS)

S5.8

It is recommended that on-site drainage system should be installed prior to the commencement of other construction activities. Sediment traps should be installed in order to minimise the sediment loading of the effluent prior to discharge into foul sewers. There shall be no direct discharge of effluent from the site into the sea.

Work site / During the construction period

Contractor

ProPECC PN 1/94;

WPCO (TM-DSS)

All temporary and permanent drainage pipes and culverts provided to facilitate runoff discharge shall be adequately designed for the controlled release of storm flows. All sediment control measures shall be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rain storms. The temporarily diverted drainage shall be reinstated to its original condition when the construction work is finished or the temporary diversion is no longer required.

All fuel tanks and store areas shall be provided with locks and be sited on sealed areas, within bunds of a capacity equal to 110% of the storage capacity.

S5.8

Sewage from Construction Work Force

Construction work force sewage discharges on site shall be connected to the existing trunk sewer or sewage treatment facilities. The construction sewage shall be handled by portable chemical toilets prior to the commission of the on-site sewer system. Appropriate numbers of portable toilets shall be provided by a licensed contractor to serve the large number of construction workers over the construction site. The Contractor shall also be responsible for waste disposal and maintenance practices.

Work site / During the construction period

Contractor

ProPECC PN 1/94; WPCO (TM-DSS)

S5.8

Floating Debris and Refuse

Collection and removal of floating refuse shall be performed at regular intervals on a daily basis. The contractor shall be responsible for keeping the water within the site boundary and the neighbouring water free from rubbish.

Work site and adjacent water / During the construction period.

Contractor

WPCO

S5.8

Storm Water Discharges

Minimum distances of 100 m shall be maintained between the existing or planned stormwater discharges and the existing or planned WSD flushing water intakes.

Work site and adjacent water / During the design and construction period.

Contractor

WPCO

Operational Phase

S5.8

Existing practices currently adopted by Marine Department for collection of floating refuse at the Project site should be continued during the operational phase of the Project.

Project site and adjacent water /During operational phase

Marine Department

WPCO, WDO

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

³ if employ Management, Operation and Maintenance (MOM) Contract

Table F9.4 Implementation Schedule for Waste Management

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Des	C	O	Dec	Relevant Legislation and Guidelines
Construction Phase
S6.7.2	*Marine Sediments* The dredged marine sediments would be loaded onto barges, transported to and disposed of at the designated disposal sites at South of Cheung Chau, East of Ninepin, East of Tung Lung Chau, South of Tsing Yi or East of Sha Chau to be allocated by the MFC depending on their level of contamination or at other disposal sites after consultation with the MFC and EPD. In accordance with the ETWB TCW No. 34/2002, the contaminated material must be dredged and transported with great care. The mitigation measures recommended in Section 5, Volume 1 of the EIA Report shall be incorporated. The dredged contaminated sediment must be effectively isolated from the environment upon final disposal and shall be disposed of at the Type 2 confined marine disposal contaminated mud pit.	Work site / During the construction period		Contractor		Ö			ETWB TCW No. 34/2002
S6.7.3	Based on the biological screening results, the Category H (>10xLCEL) sediment which failed the biological testing would require Type 3 special disposal. The volume of Category H sediment from the Causeway Bay typhoon shelter which would require special disposal arrangements is estimated to be approximately 0.05 Mm³. A feasible containment method is proposed whereby the dredged sediments are sealed in geosynthetic containers and, at the disposal site, the containers would be dropped into the designated contaminated mud pit where they would be covered by further mud disposal and later by the mud pit capping, thereby meeting the requirements for fully confined mud disposal.
S6.7.5	It will be the responsibility of the Contractor to satisfy the appropriate authorities that the contamination levels of the marine sediment to be dredged have been analysed and recorded. According to the ETWB TCW No. 34/2002, this will involve the submission of a formal Sediment Quality Report to the DEP, at least 3 months prior to the dredging contract being tendered
S6.7.6	During transportation and disposal of the dredged marine sediments requiring Type 1 and Type 2 disposal, the following measures shall be taken to minimise potential impacts on water quality:
	· Bottom opening of barges shall be fitted with tight fitting seals to prevent leakage of material. Excess material shall be cleaned from the decks and exposed fittings of barges and hopper dredgers before the vessel is moved.
	· Monitoring of the barge loading shall be conducted to ensure that loss of material does not take place during transportation. Transport barges or vessels shall be equipped with automatic self-monitoring devices as specified by the DEP. · Barges or hopper barges shall not be filled to a level that would cause the overflow of materials or sediment laden water during loading or transportation.
S6.6.15	*Floating Refuse* During the construction phase, the project proponent’s contractor will be responsible for the collection of any refuse within their works area. Floating booms will be provided on the water surface to confine the refuse from the working barges as well as to avoid the accumulation of pollutants within temporary embayment as mentioned in Table F9.3.	Work site / During the construction period		Contractor		Ö
S6.7.7	Good Site Practices Recommendations for good site practices during the construction activities include: · nomination of an approved person, such as a site manager, to be responsible for good site practices, arrangements for collection and effective disposal to an appropriate facility, of all wastes generated at the site; · training of site personnel in proper waste management and chemical waste handling procedures; · provision of sufficient waste disposal points and regular collection for disposal; · appropriate measures to minimise windblown litter and dust during transportation of waste by either covering trucks or by transporting wastes in enclosed containers; · regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors; and · a recording system for the amount of wastes generated, recycled and disposed of (including the disposal sites).	Work site / During the construction period		Contractor		Ö			Waste Disposal Ordinance (Cap.354)
S6.7.8	Waste Reduction Measures Waste reduction is best achieved at the planning and design stage, as well as by ensuring the implementation of good site practices. Recommendations to achieve waste reduction include:	Work site / During planning and design stage, and construction stage		Contractor	Ö	Ö
	· Sort C&D waste from demolition of the existing waterfront structures to recover recyclable portions such as metals.
	· Segregation and storage of different types of waste in different containers, skips or stockpiles to enhance reuse or recycling of materials and their proper disposal.
	· Encourage collection of aluminium cans, PET bottles and paper by providing separate labelled bins to enable these wastes to be segregated from other general refuse generated by the work force. · Any unused chemicals or those with remaining functional capacity shall be recycled. · Use of reusable non-timber formwork to reduce the amount of C&D material. · Proper storage and site practices to minimise the potential for damage or contamination of construction materials. · Plan and stock construction materials carefully to minimise amount of waste generated and avoid unnecessary generation of waste.
S6.7.10	General Refuse General refuse shall be stored in enclosed bins or compaction units separate from C&D material. A licensed waste collector shall be employed by the contractor to remove general refuse from the site, separately from C&D material. A collection area shall be provided where wastes can be stored and loaded prior to removal from site. An enclosed and covered area is recommended to reduce the occurrence of 'wind blow' light material.	Work site / During the construction period		Contractor		Ö			Public Health and Municipal Services Ordinance (Cap. 132)
S6.7.11	Chemical Wastes After use, chemical wastes (for example, cleaning fluids, solvents, lubrication oil and fuel) shall be handled according to the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes. Spent chemicals shall be collected by a licensed collector for disposal at the CWTF or other licensed facility in accordance with the Waste Disposal (Chemical Waste) (General) Regulation.	Work site / During the construction period		Contractor		Ö			Waste Disposal (Chemical Waste) (General) Regulation Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes
S6.7.12	Construction and Demolition Material C&D material shall be sorted on-site into inert C&D material (that is, public fill) and C&D waste. All the suitable inert C&D material shall be broken down to 250 mm in size for reuse as public fill in the WDII reclamation. C&D waste, such as wood, glass, plastic, steel and other metals shall be reused or recycled and, as a last resort, disposed of to landfill. A suitable area shall be designated to facilitate the sorting process and a temporary stockpiling area will be required for the separated materials.	Work site / During the construction period		Contractor		Ö			ETWB TCW No. 33/2002, 31/2004, 19/2005
S6.7.13	In order to monitor the disposal of public fill and C&D waste at public fill reception facilities and landfills, respectively, and to control fly tipping, a trip-ticket system shall be included as one of the contractual requirements and implemented by the Environmental Team undertaking the environmental monitoring and audit work. An Independent Environment Checker shall be responsible for auditing the results of the system.	Work site / During the construction period		Contractor and Independent Environmental Checker		Ö			ETWB TCW No. 31/2004

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

Table F9.5 Implementation Schedule for Land Contamination

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Des	C	O	Dec	Relevant Legislation and Guidelines
Construction and Operation Phase
S.7.1.1	As no potential contaminative land uses were identified within the Study Area, adverse land contamination impacts associated with the construction and operation of the Project is not expected. As such, environmental protection and mitigation measures are considered not necessary.	-		-					-

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

Table F9.6 Implementation Schedule for Marine Ecology

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Des	C	O	Dec	Relevant Legislation and Guidelines
Construction & Operation Phases
S.9.7.2	Alternative design of the Trunk Road constructed in tunnel should be adopted to avoid permanent reclamation in CBTS and ex-PWCA Basin.	-		CEDD/HyD	Ö				EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.
S.9.7.3	Translocation of those potentially affected coral colonies to the nearby suitable habitats such as Junk Bay is recommended. A detailed translocation plan (including translocation methodology, monitoring of transplanted corals, etc.) should be drafted and approved by AFCD during the detailed design stage of the Project.	Ex-PCWA Basin and along seawall next to a public pier which is about 250 m away from the CBTS		CEDD/HyD	Ö				EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.
S.9.7.4	During dredging and filling operations, a number of mitigation measures to control water quality should be adopted to confine sediment plume within reclamation area and protect marine fauna in proximity to the reclamation. The mitigation measures include the following: · Installation of silt curtains during dredging activities · Use of tightly-closed grab dredger · Reduction of dredging rate	Work site / during construction phase		Contractor		Ö			EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.
	· Control of grab descending speed
	· Construction of leading edges of seawall in the early stages of the reclamation works · Adoption of multiple-phase construction schedule
S.9.7.6	To minimize potential disturbance impacts on the foraging ardeid population in the CBTS, particularly in the area near the A King Shipyard, appropriate mitigation measures should be adopted particularly during the construction phase. The following measures are recommended: · Use of Quiet Mechanical Plant during the construction phase should be adopted wherever possible. · Adoption of multiple-phase construction schedule. General measures to reduce noise generated during the construction phase (see noise impact assessment) should be effectively implemented.	Work site / during construction phase		Contractor		Ö			EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.
S.9.7.7	Seawalls should be constructed in advance around the reclamation areas within the area of the CBTS to screen adjacent feeding ground from construction phase activities, reduce noise disturbance to the associated seabirds and also to restrict access to this habitat adjacent to works areas by ship traffic.	Work site / during construction phase		Contractor		Ö			EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.
S.9.7.8	Loss of artificial seawall habitats should be reinstated by the construction of about 1 km vertical wave absorbing seawall along the coastlines of the new reclamation around the HKCEC and at North Point. The new seawalls are expected to provide large area of hard substrata for settlement and recruitment of intertidal fauna similar to those previously recorded from existing intertidal habitats.	Work site / during construction phase		Contractor		Ö			EIAO TM Annex 16 (Section 8.4) & EIAO Guidance Note No. 3/2002.

*Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

Table F9.7 Implementation Schedule for Landscape and Visual

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Des	C	O	Dec	Relevant Legislation and Guidelines
Construction Phase
Table 10.5	CM5 Control of night-time lighting.	Work site / During Construction Phase		Contractor		Ö			EIAO TM
Table 10.5	CM6 Erection of decorative screen hoarding compatible with the surrounding setting.	Work site / During Construction Phase		Contractor		Ö			EIAO TM
Operation Phase
Table 10.6, Figure 10.5.1-10.5.5	OM4 Aesthetic design of proposed waterfront promenade.	Work site / During Design Stage and Operation Phases		CEDD[6]	Ö	Ö	Ö		ETWB TCW 2/2004

*Des - Design, C - Construction, O – Operation, and Dec - Decommissioning

^([1]) Agreement No. CE 74/98. Wan Chai Development Phase II Comprehensive Feasibility Study. EIA Report. July 2001.

(2) (i) Young, H. M. et al. “The migration of contaminants through geosynthetic fabric containers utilized in dredging operation”. Engineering Geology, 53 (1999), 167-176;

(ii) Fleischer, P., Bowles, F. A. “Turbidity currents generated by seafloor impact of geotextile fabric containers”. Applied Ocean Research, 21 (1999) 215-217;

(iii) Valent, P. J. et al. “Engineering concepts for the placement of wastes on the abyssal seafloor”. Journal of Marine Systems, 14 (1998) 273-288.

^([3]) Agreement No. CE 54/2001 (CE). Wan Chai Development Phase II – Design & Construction. Field Trials of Geosynthetic Containers – ACE Report.

[4] CEDD will identify an implementation agent.

[5] CEDD will identify an implementation agent.

[6] CEDD will identify an implementation agent

F1.1.1 This Appendix provides a summary of the specific EM&A requirements for Schedule 2 DP3: reclamation works including associated dredging works.

F2.2.2 When alternative monitoring locations are proposed, the proposed site should, as far as practicable:

F2.2.3 The ET shall agree with the ER in consultation with the IC(E) on the position of the HVS for the installation of the monitoring equipment. When positioning the samplers, the following points shall be noted:

F2.3.2 If the above measures are not sufficient to restore the air quality to acceptable levels upon the advice of ET Leader, the Contractor shall liaise with the ET Leader on some other mitigation measures, propose to ER for approval, and implement the mitigation measures.

F2.3.3 The implementation schedule for the mitigation measures during construction phase is presented in Section F9.

F3 NOISE

F3.1.2 The locations of construction noise monitoring stations are summarized in Table F3.1 and shown in Figure 3.2.

F3.1.3 The status and locations of noise sensitive receivers may change after issuing this manual. If such case exists, the ET Leader shall propose updated monitoring locations and seek approval from EPD and agreement from the ER and the IEC before baseline monitoring commences.

F3.1.4 When alternative monitoring locations are proposed, the monitoring locations shall be chosen based on the following criteria:

F3.1.6 Construction noise mitigation measures for DP3 are included in Section F9.

F3.2.1 In view of the project nature, no adverse noise impact during the operation phase would be anticipated and therefore monitoring and audit programme is not required.

F4.1.2 Dissolved oxygen (DO), turbidity and suspended solids (SS) levels shall be monitored at designated marine water quality monitoring stations during the construction phase. DO and turbidity should be measured in situ whereas SS should be determined by laboratory.

Dissolved Oxygen and Temperature Measuring Equipment

Turbidity Measurement Instrument

F4.2.1 The instrument should be a portable and weatherproof turbidity measuring instrument using a DC power source. It should have a photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU (for example, Hach model 2100P or an approved similar instrument).

Sampler

Water Depth Detector

F4.2.3 A portable, battery-operated echo sounder 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.

Salinity

F4.2.4 A portable salinometer capable of measuring salinity in the range of 0 - 40 parts per thousand (ppt) should be provided for measuring salinity of the water at each monitoring location.

Sample Containers and Storage

Monitoring Position Equipment

Calibration of In-Situ Instruments

F4.2.8 Sufficient stocks of spare parts shall be maintained for replacements when necessary. Backup monitoring equipment shall also be made available so that monitoring can proceed uninterrupted even when some equipment is under maintenance, calibration, etc.

F4.4.1 It is recommended to set up at selected monitoring stations at the WSD Salt Water Intake and Cooling Water Intake which could potentially be affected by the marine construction works (Figure 4.1).

F4.4.3 The coordinates of the proposed monitoring stations are listed in Table F4.2.

Notes:

Regular Maintenance of Silt Screens

F4.7.1 Upon completion of all marine-based construction activities, a post-project monitoring exercise on water quality shall be carried out for four weeks in the same manner as the impact monitoring as described in Section F4.6.

F4.8.1 Other relevant data should also be recorded, including monitoring location / position, time, water depth, sampling depth, pH, salinity, DO saturation, water temperature, tidal stages, weather conditions and any special phenomena or work underway nearby.

F4.8.2 A sample data record sheet is shown in Appendix B4 for reference.

Site Inspection

Compliance Audits

F4.10.1 The water quality assessment criteria, namely Action and Limit levels are shown in Table F4.4. When exceedances of water quality assessment criteria are detected at any designated monitoring stations, carry out the actions in accordance with the Action Plan in Table F4.5 is recommended.

F4.10.4 Where necessary, EPD routine marine water quality monitoring data at the relevant station(s), dry and wet seasons inclusive, could also be used to established the baseline water quality.

F4.11.1 Mitigation measures for water quality control have been recommended in the EIA Report. The Contractor should be responsible for the design and implementation of these measures.

F4.11.2 Recommended mitigation measures to minimize the adverse impacts on water quality during the proposed dredging are listed in the implementation schedule given in Section F9.

Dredged Marine Sediments

F5.1.7 During transportation and disposal of the dredged marine sediments requiring Type 1 and Type 2 disposal, the following measures should be taken to minimise potential impacts on water quality:

F5.1.8 Barges or hopper barges shall not be filled to a level that would cause the overflow of materials or sediment laden water during loading or transportation.

Good Site Practices

F5.1.9 Adverse impacts related to waste management are not expected to arise, provided that good site practices are strictly followed. Recommendations for good site practices during the construction activities include:

Waste Reduction Measures

F5.1.10 Good management and control can prevent the generation of a significant amount of waste. Waste reduction is best achieved at the planning and design stage, as well as by ensuring the implementation of good site practices. Recommendations to achieve waste reduction include:

F5.1.11 In addition to the above measures, specific mitigation measures are recommended below for the identified waste arisings to minimise environmental impacts during handling, transportation and disposal of these wastes.

General Refuse

Chemical Wastes

Construction and Demolition Material

F6.1.1 As no land contamination impacts were identified for both construction and operational phase of the Project, EM&A works for land contamination were therefore considered not necessary.

F7.1 Introduction

F7.2.4 General steps for the whole coral translocation exercise are suggested below and should be followed as far as practicable:

F7.3 Monitoring requirement

l Blanched (i.e. paled)

F7.3.7 All tags should be removed / retrieved after the monitoring programme is completed.

Reporting

F7.3.8 A baseline survey report should be submitted to AFCD prior to the commencement of coral translocation exercise.

F8.1.1 The EIA has recommended landscape and visual mitigation measures to be undertaken during both the construction and operational phases of the project. This section outlines the monitoring and audit of these measures.

F8.1.2 The key landscape resources, landscape character areas and visual sensitive receivers are shown in Figures 8.1a, 8.1b, 8.2a, 8.2b, 8.3a, 8.3b, 8.3c.

F8.2.4 Measures to mitigate landscape and visual impacts during construction should be checked to ensure compliance with the intended aims of the measures.

F8.2.5 The progress of the engineering works shall be regularly reviewed on site to identify the earliest practical opportunities for the landscape works to be undertaken.

F8.3 Baseline Monitoring

F8.3.1 A photographic record of the site at the time of the contractor’s possession of the site shall be prepared by the Contractor and approved by the ER. The approved photographic Record shall be submitted to the Project proponent, ET, IC(E) and EPD for record.

F8.4.1 Should non-compliance of the landscape and visual impacts occur, actions in accordance with the action plan stated in Table F8.2 and F8.3 should be carried out.

F8.5.1 The landscape and visual impact assessment of the EIA recommends a series on mitigation measures, as noted below: