7. ENVIRONMENTAL SITE INSPECTION AND AUDIT
7.1 Site Inspection
7.1.1 Site audits were carried out by ET on weekly basis to monitor the implementation of proper environmental management practices and mitigation measures in the Project site.
7.1.2 The joint site audits for Contract No. HY/2013/03 (includes Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) were conducted on 6, 13, 21, and 27 July 2017 by the representatives of Engineer, Contractor, ET and IEC (IEC for 21 July 2017).
7.1.3 Particular observations during the site inspection and corrective actions undertaken by the Contractor are described below:
For Contract No. HY/2013/03
30 June 2017
1. The Contractor was reminded to increase watering for dust suppression on site. Subsequently, watering was provided. The observation was closed on 6 July 2017.
2. The Contractor was reminded to improve housekeeping on site. Subsequently, housekeeping was removed. The observation was closed on 6 July 2017.
3. The Contractor was reminded to increase watering for dust suppression when drilling at A6 Bridge. Subsequently, watering was provided for dust suppression when drilling. The observation was closed on 6 July 2017.
4. The Contractor was reminded to remove stagnant water accumulated at the drip tray of a generator at CUE works area. Subsequently, stagnant water was removed. The observation was closed on 6 July 2017.
6 July 2017
1. The Contractor was reminded to remove general and construction waste accumulated at Building 037. Subsequently, general and construction waste were removed. The observation was closed on 13 July 2017.
13 July 2017
1. The Contractor was reminded to increase watering for dust suppression on site. Subsequently, watering was provided. The observation was closed on 21 July 2017.
2. The Contractor was reminded to remove stagnant water accumulated around Building 040. Subsequently, stagnant water was removed. The observation was closed on 21 July 2017.
21 July 2017
1. The Contractor was reminded to remove stagnant water accumulated at Building 037. Subsequently, stagnant water was removed. The observation was closed on 27 July 2017.
2. The Contractor was reminded to remove general waste accumulated at Building 037. Subsequently, general waste was removed. The observation was closed on 27 July 2017.
3. The Contractor was reminded to provide a label for NRMM found in A7 Bridge. Subsequently, a label was provided. The observation was closed on 27 July 2017.
4. The Contractor was reminded to provide covers for the opened cement bags in A7 Bridge. Subsequently, covers were provided. The observation was closed on 27 July 2017.
27 July 2017
1. The Contractor was reminded to increase watering for dust suppression at Box Culvert B. Follow-up actions for outstanding observation will be checked in the upcoming site inspections and reported in the coming reporting period.
2. The Contractor was reminded to provide a label for a NRMM found in Portion P. Follow-up actions for outstanding observation will be checked in the upcoming site inspections and reported in the coming reporting period.
3. The Contractor was reminded to remove stagnant water accumulated in Portion P. Follow-up actions for outstanding observation will be checked in the upcoming site inspections and reported in the coming reporting period.
For Contract No. HY/2013/06 within Contract No. HY/2013/03 works area
6 July 2017
1. Nil findings.
13 July 2017
1. Nil findings.
21 July 2017
1. Nil findings.
27 July 2017
1. Nil findings.
7.2 Advice on the Solid and Liquid Waste Management Status
7.2.1... The Contractor of Contract No. HY/2013/03 registered as a chemical waste producer for the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.
7.2.2 The monthly summary of waste flow table for Contract No. HY/2013/03 (includes Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) are detailed in Appendix E.
7.2.3 Contract No. HY/2013/03 has been assigned to arrange for delivery of surplus filling materials from Contract No. HY/2013/03 to other projects, including Tuen Mun - Chek Lap Kok Link (TM-CLKL) project of HZMB, the Airport Authority Hong Kong’s Three Runway (3RS) Project, Wan Chai Development Phase II project and Hong Kong Link Road (HKLR) project of HZMB. The estimated quantity of surplus filling materials is confirmed by Resident Site Staff of Contract No. HY/2013/03. The summary of surplus filling materials delivered to other projects up to the end of July 2017 is shown in Table 7.1.
Table 7.1 Summary of Surplus Filling Materials Delivered from Contract No. HY/2013/03 to other projects
|
Month/Year |
Density (in tonnes/m3) |
Quantity disposed (in ‘000m3) |
||||
|
To TM-CLKL Project |
To 3RS Project |
To WDII Project |
To HKLR Project |
Total |
||
|
May 2017 |
2.3 |
12.637 |
0 |
0 |
0 |
12.637 |
|
June 2017 |
2.63925 |
14.769 |
11.238 |
0 |
0 |
26.007 |
|
July 2017 |
/ |
4.651 |
38.207 |
10.606 |
0.760 |
54.224 |
|
Total |
/ |
32.057 |
49.445 |
10.606 |
0.760 |
92.868 |
Remarks: The variation in density is due to different compositions of surplus filling materials
7.2.4 0.000 (in‘000m3) of excavated marine sediment (from Contract No. HY/2013/03), 30.339 (in‘000m3) of Inert C & D Wastes and 1.448 (in‘000m3) of Non-inert C & D Wastes were generated (from Contract No. HY/2013/03) in this reporting period. 54.224 (in‘000m3) of Inert C & D Wastes were reused in other projects and 0.486 (in‘000m3) of Inert C & D Wastes was disposed as public fill. No Inert C & D Wastes and 0.020 (in tonnes) of Non-inert C & D Wastes were generated (from Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) in this reporting period. 0.020 (in tonnes) metals were generated and recycled (from Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) in this reporting period.
7.2.5 The excavated marine mud from the land-based works was disposed of at the designated disposal sites within Hong Kong as allocated by the Marine Fill Committee. The Contractor of Contract No. HY/2013/03 shall ensure no spilling and overflowing of materials during loading / unloading / transportation is allowed.
7.2.6... The Contractor was reminded that chemical waste containers should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packing, Labelling and Storage of Chemical Waste.
7.2.7... Contractor of Contract No. HY/2013/03’s site arrangement for disposal of bentonite slurry to Tseung Kwan O Area 137 Fill Bank was checked by ET and formal consent has been obtained from Tseung Kwan O Area 137 Fill Bank for receiving used bentonite slurry generated from Contract No. HY/2013/03.
7.3 Environmental Licenses and Permits
7.3.1 The valid environmental licenses and permits for Contract No. HY/2013/03 (includes Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) during the reporting period are summarized in Appendix F. The Contractor of Contract No. HY/2013/06 was advised to register as a chemical waste producer when chemical waste is expected to generate for the foreseeable future from the operations (For Registration as Waste Producer Pursuant to Waste Disposal (Chemical Waste) (General) Regulation).
7.4 Implementation Status of Environmental Mitigation Measures
7.4.1... In response to the site audit findings, the Contractor carried out corrective actions.
7.4.2... A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix G. All necessary mitigation measures at this stage of works were implemented properly.
7.4.3... Implementation status of Regular Marine Travel Route Plan (RMTRP) was checked by ET. In general, the Contractor has complied with the plan. One route to WDII was scheduled which approval is pending. The Contractor is revising RMTRP with the route to WDII according to the comments given by IEC. The Contractor has been reminded to follow EP condition 1.9 to ensure the compliance in the submission of updated RMTRP prior to implementation. Training of marine travel route for marine vessels operator was given to relevant staff and relevant records were kept properly. The marine traffic records and geographical plots of all the vessels tracks to demonstrate the conformance of the vessel to the proposed route in July 2017 would be provided to ER, ETL, IEC/ENPO for checking within the month of August 2017.
7.4.4... With respect to condition 3.26A of EP-353/2009/K approved by EPD on 11 April 2016, the numbers and operating periods of floating grout production facilities and floating concrete batching plants on-site to review on the compliance to this EP condition were checked. Under Contract No. HY/2013/03, no floating concrete batching plant was operated on-site during the reporting period.
7.4.5... As silt curtain was installed since May 2017, Dolphin Watching Plan (DWP) should be implemented. The status of silt curtain was reviewed by ET and there was no change on the status of silt curtain during the reporting period. Implementation status of DWP was checked by ET. The records of dolphin watching training, regular inspection of the silt curtains and visual inspection of waters surrounded by the silt curtain in July 2017 would be provided to ER, ETL, IEC/ENPO for checking within the month of August 2017.
7.5 Summary of Exceedance of the Environmental Quality Performance Limit
7.5.1 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.
7.5.2 There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.
7.5.3 There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.
7.5.4 There were two Action Level exceedances of suspended solids recorded at station SR3 during mid-ebb tide on 12 July 2017 and station IS7 during mid-flood tide on 14 July 2017. After investigation, it was concluded that the two exceedances were not relevant to Contract No. HY/2013/03. The investigation reports 002 & 003 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J. There was no Action and Limit Level exceedance recorded on other monitoring dates at the monitoring stations shown as shown at Table 4.1 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.
7.5.5 Ecological monitoring results at all transects are reported in the EM&A report prepared by Contract No. HY/2010/02.
7.6...... Summary of Complaints, Notification of Summons and Successful Prosecution
7.6.1 There were no complaints received in relation to the environmental impact during the reporting period. The details of cumulative statistics of Environmental Complaints are provided in Appendix H.
7.6.2 There was no notification for summons or prosecutions received in relation to the environmental impact during this reporting period.
7.6.3 Statistics on environmental complaints, notifications of summons and successful prosecutions are provided in Appendix H.