I1 EM&A Requirements

I1.1 Introduction

I1.1.1 This Appendix provides a summary of the specific EM&A requirements for Schedule 2 DP6: Dredging for the Cross-harbour Water Mains from Wan Chai to Tsim Sha Tsui.

I2 AIR QUALITY

I2.1 Introduction

I2.1.1 The findings of the EIA indicated that negligible dust impact and emission impact from the DP6 would be expected at the nearest ASRs. Air quality monitoring and audit is therefore not required.

I2.2 Mitigation Measures

I2.2.1 As described in the EIA Report, the operated dredgers should be regularly maintained to minimise emissions during dredging.

I2.2.2 The implementation schedule for the mitigation measures during construction is presented in Section I9.

I3 NOISE

I3.1 Construction Phase

I3.1.1 The proposed cross harbour water mains will extend from Wan Chai near the HKCEC Extension to connect to the existing system near the Museum of Arts at the Tsim Sha Tsui promenade. The noise sensitive receivers located within 300m of construction sites at Wan Chai and Tsim Sha Tsui are basically the buildings equipped with central air-conditioning system. The first layer of NSRs near Tsim Sha Tsui site, which are centrally air-conditioned, would provide considerable acoustic shielding to those receivers at further distance behind. No adverse noise impact would be anticipated and therefore noise monitoring would not be required for DP6. However, weekly site inspection shall be carried out throughout the construction phase to ensure that appropriate noise control measures would be properly implemented with a view to minimizing the construction noise impact.

I3.1.2 Site inspection provides a direct means to initiate and enforce specified environmental protection and pollution control measures. These shall be undertaken routinely to inspect construction activities in order to ensure that appropriate environmental protection and pollution control mitigation measures are properly implemented. The site inspection is one of the most effective tools to enforce the environmental protection requirements at the works area. Detailed requirements of site inspection are presented in Section 9 of Schedule 3 EM&A Manual.

I3.2 Operation Phase

I3.2.1 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.

I4 WATER QUALITY

I4.1 Water Quality Parameters

I4.1.1 As identified in the EIA Report, the key water quality impacts caused by the Project would be associated with the dredging works during the construction phase. The EIA report has identified that suspended sediment is the most critical water quality parameter caused by the dredging works. Marine water quality monitoring shall be carried out during the construction phase to ensure that any unacceptable increase in suspended solids / turbidity and decrease in dissolved oxygen due to dredging activities could be readily detected and timely action be taken to rectify the situation. As presented in the EIA Report, adverse impacts associated with the potential release of contaminants (such as heavy metal and nutrients) from the marine mud during dredging activities is not expected as demonstrated by the elutriate tests and mathematical modelling. Thus, monitoring for other parameters such as heavy metal and nutrients are not considered necessary.

I4.1.2 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.

I4.2 Monitoring Equipment

Dissolved Oxygen and Temperature Measuring Equipment

(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

I4.2.1 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

I4.2.2 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

I4.2.3 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

I4.2.4 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

I4.2.5 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 I4.1.

Monitoring Position Equipment

I4.2.6 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

I4.2.7 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.

I4.2.8 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.

I4.3 Laboratory Measurement / Analysis

I4.3.1 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 I4.1. 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 I4.1 and as described in American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater, 19th edition, unless otherwise specified.

Table I4.1 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

I4.3.2 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.

I4.3.3 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.

I4.4 Monitoring Locations

I4.4.1 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).

I4.4.2 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.

I4.4.3 The coordinates of the proposed monitoring stations are listed in Table I4.2.

Table I4.2 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

I4.4.4 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.

I4.5 Baseline Monitoring

I4.5.1 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.

I4.5.2 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 I4.2. 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.

I4.5.3 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.

I4.6 Impact Monitoring

I4.6.1 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 I4.2. 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 I4.3 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 I4.3 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.

I4.6.2 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 I4.5 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 I4.5 are exceeded.

Regular Maintenance of Silt Screens

I4.6.3 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.

I4.7 Post-construction Monitoring

I4.7.1 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 I4.6.

I4.8 Field Log

I4.8.1 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.

I4.8.2 A sample data record sheet is shown in Appendix B4 for reference.

I4.9 Construction Site Audits

I4.9.1 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

I4.9.2 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 I9. 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

I4.9.3 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.

I4.10 Event and Action Plan for Construction Water Quality

I4.10.1 The water quality assessment criteria, namely Action and Limit levels are shown in Table I4.4. 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 I4.5 is recommended.

I4.10.2 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 I4.4 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 >10 mg/l
Turbidity in NTU	95 percentile of baseline data or >9.5 NTU	99 percentile of baseline data or >10 NTU
DO in mg/L	95 percentile of baseline data or <2.1 mg/l	99 percentile of baseline data or <2 mg/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.

I4.10.3 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.

I4.10.4 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.

I4.11 Mitigation of Adverse Environmental Impacts

I4.11.1 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.

I4.11.2 Recommended mitigation measures to minimize the adverse impacts on water quality during the proposed dredging are listed in the implementation schedule given in Section I9.

Table I4.5 Event and Action Plan for Marine Water Quality

EVENT	ACTION
	ET	IC(E)	ER	CONTRACTOR
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)

I5 WASTE MANAGEMENT

I5.1 Waste Control and Mitigation Measures

I5.1.1 Mitigation measures for waste management of the DP6 are summarised below. The Implementation Schedule of the recommended mitigation measures for DP6 is presented in Section I9. 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

I5.1.2 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).

I5.1.3 The dredged marine sediments would be loaded onto barges and transported to and disposed of at the designated disposal sites at South of Cheung Chau, Eat of Ninepin, East of Tung Lung Chau, South of Tsing Yi and East of Sha Chau to be allocated by the Marine Fill Committee depending on their level of contamination after consultation with the Marine Fill Committee 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 4 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. The final disposal site will be determined by the Marine Fill Committee and a dumping licence will be obtained from EPD prior to the commencement of the dredging works.

I5.1.4 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.

I5.1.5 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.

I5.1.6 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

I5.1.7 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

I5.1.8 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.

I5.1.9 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

I5.1.10 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

I5.1.11 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

I5.1.12 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.

I5.1.13 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 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.

I6 LAND CONTAMINATION

I6.1.1 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.

I7 MARINE ECOLOGY

I7.1.1 As no adverse ecological impact on marine resources is predicted, no necessary mitigation measures and monitoring programme specific for the marine ecology is considered as required in the impact assessment. The mitigation measures and monitoring programme recommended in the water quality impact assessment to control water quality would also serve to protect marine ecological resources from indirect impacts and ensure no adverse impact on marine life would be resulted from this designated project.

I8 LANDSCAPE AND VISUAL

I8.1 Introduction

I8.1.1 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.

I8.1.2 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.

I8.2 Monitoring Details

I8.2.1 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 I8.1 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

I8.2.2 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

I8.2.3 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).

I8.2.4 Measures to mitigate landscape and visual impacts during construction should be checked to ensure compliance with the intended aims of the measures.

I8.2.5 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.

I8.3 Baseline Monitoring

I8.3.1 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.

I8.4 Event/Action Plan for Landscape and Visual Works

I8.4.1 Should non-compliance of the landscape and visual impacts occur, actions in accordance with the action plan stated in Table I8.2 should be carried out.

Table I8.2 Construction & Establishment Periods

EVENT ACTION LEVEL	ACTION
	ET	IC(E)	ER	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

I8.5 Mitigation Measures

I8.5.1 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

· Minimisation of works areas (CM2);

· Erection of decorative hoardings (CM3);

· Control night-time lighting (CM4);

· Minimisation of disruption to public by effective programming of the works (CM5).

Landscape and Visual Mitigation Measures during Operation Phase

· There is no landscape and visual impact due to DP6. Therefore, there will be no landscape and visual mitigation measures for DP6 during operation.

I9 IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES

Table I9.1 Implementation Schedule for Air Quality Control

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Implementation Stages*				Relevant Legislation and Guidelines
				Des	C	O	Dec
Construction Phase
S3.6.1	No adverse air quality impacts at the ASRs are expected during dredging. However, the operated dredger should be regularly maintained to minimise emissions.	Work site / during construction	Contractor		Ö			EIAO-TM

* Des - Design, C - Construction, O – Operation, and Dec - Decommissioning
Table I9.2 Implementation Schedule for Noise Control

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent	Implementation Stages*				Relevant Legislation and Guidelines
				Des	C	O	Dec
Construction Phase
S4.9.2	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 – S4.8.4	Use of quiet powered mechanical equipment for the following tasks: · Submarine pipelines (marine section)	Work Sites / During Construction	Contractor		Ö			EIAO-TM, NCO

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

Table I9.3 Implementation Schedule for Water Quality Control

EIA Ref

Environmental Protection Measures / Mitigation Measures

Location / Timing

Implementation Agent

Implementation Stages*

Relevant Legislation and Guidelines

Des

C

O

Dec

Construction Phase

S5.8

· Dredging for construction of the water mains shall be carried out by closed grab dredger. The corresponding dredging rates shall not be more than 1,500 m³ per day.

Work site / During the construction period

Contractor

Ö

EIAO-TM, WPCO

S5.8, Figure 5.3

Silt screens shall be applied to seawater intakes at interim WDII 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

Work site / During the construction period

Contractor

Ö

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;

· 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;

Work site / During the construction period

Contractor

Ö

ProPECC PN 1/94;

WPCO (TM-DSS)

· 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

S5.8

Silt screens are recommended to be deployed at the seawater intakes during the marine 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

Ö

EIAO-TM, WPCO

S5.8

The mitigation measures for construction runoff and drainage as listed below should be implemented where applicable.

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.

Work site / During the construction period

Contractor

Ö

ProPECC PN 1/94;

WPCO (TM-DSS)

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.

S5.8

Construction Runoff and Drainage (continued)

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.

Work site / During the construction period

Contractor

Ö

ProPECC PN 1/94;

WPCO (TM-DSS)

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.

S5.8

Construction Runoff and Drainage (Continued)

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.

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.

Work site / During the construction period

Contractor

Ö

ProPECC PN 1/94;

WPCO (TM-DSS)

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

Ö

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

Ö

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

Ö

Ö

WPCO

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

Table I9.4 Implementation Schedule for Waste Management

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
					Des	C	O	Dec
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 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. 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 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	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
S6.7.4	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.
S6.7.5	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;	Work site / During the construction period		Contractor		Ö			Waste Disposal Ordinance (Cap.354)
	· 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).
S6.7.6	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: · Sort C&D waste from demolition of the existing structures to recover recyclable portions such as metals.	Work site / During planning and design stage, and construction stage		Contractor	Ö	Ö
	· 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.
S6.7.8	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)
S6.7.9	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
S6.7.10	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
S6.7.11	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 I9.5 Implementation Schedule for Land Contamination

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
					Des	C	O	Dec
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 I9.6 Implementation Schedule for Marine Ecology

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
					Des	C	O	Dec
Construction & Operation Phases
S.9.7.1	As no adverse ecological impact on marine habitats and associated wildlife is predicted, no necessary mitigation measure specific for marine ecology is considered as required in this assessment. The mitigation measures recommended in the water quality impact assessment to control water quality would also serve to protect marine ecological resources from indirect impacts and ensure no adverse impact on marine life would be resulted from this designated project.	-		-					-

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

Table I9.7 Implementation Schedule for Landscape and Visual

EIA Ref	Environmental Protection Measures / Mitigation Measures	Location / Timing	Implementation Agent		Implementation Stages*				Relevant Legislation and Guidelines
					Des	C	O	Dec
Construction Phase
Refer to EIA-058/2001 Table 10.13	CM2 Minimisation of works areas.	Work site / During Construction Phase		Contractor		Ö			EIAO TM
Refer to EIA-058/2001 Table 10.13	CM3 Erection of decorative hoardings.	Work site / During Construction Phase		Contractor		Ö			EIAO TM
Refer to EIA-058/2001 Table 10.13	CM4 Control night-time lighting.	Work site / During Construction Phase		Contractor		Ö			EIAO TM
Refer to EIA-058/2001 Table 10.13	CM5 Minimisation of disruption to public by effective programming of the works.	Work site / During Construction Phase		Contractor		Ö			EIAO TM

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