Event and Action Plan. 4.7.1.1 The Action and Limit levels for construction noise are defined in Table 4.2. Should non-compliance of the criteria occur, action in accordance with the Action Plan in Table 4.3 shall be carried out. 0700 – 1900 hours on normal weekdays When one documented complaint is received 75 dB(A) for residential premises and places of public worship 70 dB(A) for schools and 65 dB(A) during examination period Notes: If works are to be carried out during restricted hours, the conditions stipulated in the Construction Noise Permit (CNP) issued by the Noise Control Authority have to be followed. Agreement No. CE 54/2015 (EP) Xxx Xxx Xxx Waterfront Enhancement Project – Environmental and Traffic Impact Assessment Studies – Investigation Environmental Monitoring and Audit Manual
1. Review the analysed results submitted by the ET; 2. Review the proposed remedial measures by the Contractor and advise the ER accordingly; and 3. Supervise the implementation of remedial measures. 1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; and 4. Ensure remedial measures are properly implemented.
1. Submit noise mitigation proposals to IEC, ET and ER; and 2. Implement noise mitigation proposals.
1. Discuss amongst ER, ET, and Contractor on the potential remedial actions; 2. Review Contractors remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly; and 3. Supervise the implementation of remedial measures. 1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures properly implemented; and 5. If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated. 1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Resubmit proposals if problem still not under control; and 5. Stop the relevant portion of works as determined by the ER until the exceedance is abated. AECOM 11
Event and Action Plan. 5.8.1.1 The water quality assessment criteria, namely Action and Limit Levels are shown in Table 5.4. These criteria should be applied to ensure that any deterioration of water quality is readily detected and timely action is taken to rectify the situation. Should the monitoring results of the water quality parameters at any designated monitoring station exceed the water quality criteria, the actions in accordance with the Event and Action Plan summarized in Table 5.5 shall be carried out. 1SS in mg/L Depth-average SS ≥ 95%-ile of baseline data or 120% of control station’s SS at the same tide of the same day Depth-average SS ≥ 99%-ile of baseline data or 130% of control station’s SS at the same tide of the same day and specific sensitive receiver water quality requirements (e.g. required SS level for concerned seawater intakes) DO in mg/L Surface & Middle ≤5%-ile of baseline data for surface and middle layers Bottom ≤5%-ile of baseline data for bottom layer Surface & Middle ≤4 mg/L or 1%-ile of baseline data for surface and middle layers Bottom ≤2 mg/L or 1%-ile of baseline data for bottom layer 1Turbidity in NTU Depth-average Turbidity ≥ 95%-ile of baseline data or 120% of control station’s turbidity at the same tide of the same day Depth-average Turbidity ≥ 99%-ile of baseline data or 130% of control station’s turbidity at the same tide of the same day Remarks:
Event and Action Plan. EVENT ACTION ET IEC ER CONTRACTOR
Event and Action Plan. 5.8.1 Should non-compliance of the air quality criteria occur, actions in accordance with the Action Plan in Table 5.3 shall be carried out.
Event and Action Plan. 9.10.1 The Action and Limit levels for water quality are defined in Table 9.3. Should non-compliance of the criteria occur, action in accordance with the Action Plan in Table 9.4 shall be carried out.
Event and Action Plan. 10.8.1 The Action and Limit levels for Chinese White Dolphin Monitoring are defined in Table 10.3(a) and 10.3(b). Should non-compliance of the criteria occur, action in accordance with the Action Plan in Table 10.2 shall be carried out.
10.8.2 An action plan has been defined to indicate that should dolphin numbers be significantly different (taking into account naturally occurring alterations to distribution patterns such as due to seasonal change) to the baseline monitoring activity following the impact and post-construction3 monitoring, the ET should inform AFCD and investigate the possible causes of the change. Appropriate actions and a further monitoring should be recommended and additional mitigation measures should be implemented as necessary. Data should then be re-assessed and the need for any further monitoring established. The action plan should be undertaken within a period of 1 month after a significant difference has been determined.
10.8.3 For the purpose of the EM&A works, the “significance” level which will trigger the action plan shall be proposed by the ET as part of the post-construction monitoring programme3 design to be agreed with AFCD and EPD prior to the monitoring being undertaken.
Event and Action Plan. 11.4.1.1 In the event of non-compliance, the responsibilities of the relevant parties are detailed in the Event/Action plan provided in Table 11.4.
1. Check report.
2. Recommend remedial design if necessary. 1. Undertake remedial design if necessary.
Event and Action Plan. The Action and Limit (AL) Levels for water quality are defined in Table 4.2. The actions in accordance with the Event and Action Plan in Table 4.3 should be carried out if the water quality assessment criteria are exceeded at any designated monitoring points. Table 4.2: Typical Action and Limit Levels for Water Quality DO in mg/l 5 percentile of baseline data Surface and Middle (Surface, Middle & Bottom) 4 mg/L or 1 percentile of baseline data Bottom 2 mg/L or 1 percentile of baseline data SS in mg/l (depth- 95 percentile of baseline data or 120% of 99 percentile of baseline data or 130% of averaged) upstream control station of the same day upstream control station of the same day Turbidity in NTU (depth- 95 percentile of baseline data or 120% of 99 percentile of baseline data or 130% of averaged) upstream control station of the same day upstream control station of the same day
Event and Action Plan. The baseline monitoring results form the basis for determining the air quality criteria for the impact monitoring. The ET should compare the impact monitoring results with air quality criteria set up for 24-hour TSP and 1-hour TSP level. Table 9.2 shows the air quality criteria, namely Action and Limit (AL) Levels to be used. Should non-compliance of the air quality criteria occurs, actions in accordance with the Event and Action Plan in Table 9.3 should be carried out. Table 9.2: Typical Action and Limit Levels for Air Quality 24-hr TSP Level in µg/m³ For baseline level ≤ 200 µg/m³, Action level = (130% of baseline level + Limit level)/2 260 1-hour TSP Level in µg/m³ For baseline level ≤ 384 µg/m³, Action level = (130% of baseline level + Limit level)/2 500 Table 9.3: Event and Action Plan for Air Quality
1. Exceedance for one sample 1. Undertake investigation to establish validity of exceedence. Identify 1. Check Contractor’s working method.
Event and Action Plan. The Action and Limit (AL) Levels for construction noise are defined in Table 2.1. Should non- compliance of the criteria occurs, action in accordance with the Event and Action Plan in Table 2.2, should be carried out. Table 2.1 : Typical Action and Limit Levels for Construction Noise 0700-1900 hrs on normal weekdays When one valid documented 75* dB(A) Note: *70 dB(A) for schools and 65 dB(A) during school examination periods. If works are to be carried out during restricted hours, the conditions stipulated in the Construction Noise Permit (CNP) issued by the Noise Control Authority have to be followed. Table 2.2: Event and Action Plan for Construction Noise Event Action ET IEC ER Contractor
