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 02, 08, 15, 22 and 29 December 2016 by the representatives of Engineer, Contractor, ET and IEC (IEC for 15 December 2016).
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
25 Nov 2016
1. CHEC was reminded to provide drip tray for chemical containers at CUE works area. Subsequently, chemical containers were removed at CUE works area. The observation was closed on 02 December 2016.
2. CHEC was reminded to remove stagnant water accumulated at Building 037 and Bridge A7 area. Subsequently, stagnant water was cleared at Building 037 and Bridge A7 area. The observation was closed on 02 December 2016.
3. CHEC was reminded to enhance watering for dusty operation at Bridge A7 area. Subsequently, watering was increased at Bridge A7 area. The observation was closed on 02 December 2016.
02 Dec 2016
1. CHEC was reminded to remove stagnant water accumulated at CUE works area. Subsequently, stagnant water was cleared at CUE works area. The observation was closed on 08 December 2016.
2. CHEC was reminded to remove general refuse accumulated at CUE works area and building 026. Subsequently, general refuse was removed at CUE works area and Building 026. The observation was closed on 08 December 2016.
08 Dec 2016
1. CHEC was reminded to provide drip trays for chemical containers at Building 035. Subsequently, chemical containers were removed at Building 035. The observation was closed on 15 December 2016.
2. CHEC was reminded to remove general refuse accumulated at CUE works area. Subsequently, general refuse was removed at CUE works area. The observation was closed on 15 December 2016.
3. CHEC was reminded to remove stagnant water accumulated at the beams at 035 Building. Subsequently, stagnant water was cleared at the beams at 035 Building. The observation was closed on 15 December 2016.
15 Dec 2016
1. CHEC was reminded to remove general refuse accumulated at CUE works area and STP works area. Subsequently, general refuse was removed at CUE works area and STP works area. The observation was closed on 22 December 2016.
2. CHEC was reminded to provide drip trays for chemical containers at STP works area. Subsequently, chemical containers were removed at STP works area. The observation was closed on 22 December 2016.
3. CHEC was reminded to increase watering for dust suppression at STP works area. Subsequently, watering was increased at STP works area. The observation was closed on 22 December 2016.
4. CHEC was reminded to provide drip trays for generators and air compressors at STP works area. Subsequently, generators and air compressors were removed at STP works area. The observation was closed on 22 December 2016.
22 Dec 2016
1. CHEC was reminded to remove general refuse accumulated at Building 026. Subsequently, general refuse was removed at Building 026. The observation was closed on 29 December 2016.
29 Dec 2016
1. CHEC was reminded to remove stagnant water accumulated at CUE works area and Building 037. Follow-up actions for outstanding observation will be checked in the upcoming site inspections and reported in the coming reporting period.
2. CHEC was reminded to increase watering for dust suppression at STP area. Follow-up actions for outstanding observation will be checked in the upcoming site inspections and reported in the coming reporting period.
3. CHEC was reminded to remove refuse on site. 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
02 Dec 2016
1. Nil findings.
08 Dec 2016
1. Nil findings.
15 Dec 2016
1. Nil findings.
22 Dec 2016
1. Nil findings.
29 Dec 2016
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 4,960 (in‘000m3) of excavated marine sediment and 2,792 (in‘000m3) of excavated marine sediment in Cat L (from Contract No. HY/2013/03), 0.161 (in‘000m3) of Inert C & D Wastes and 0.663 (in‘000m3) of Non-inert C & D Wastes were generated (from Contract No. HY/2013/03) in this reporting period. No Inert C & D Wastes and 0.002 tonnes of paper/cardboard packaging were generated and recycled (from Contract No. HY/2013/06 within Contract No. HY/2013/03 works area) in this reporting period.
7.2.4 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.
7.2.5... 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.
7.2.6... 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. 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 December 2016 would be provided to ER, ETL, IEC/ENPO for checking within the month of January 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, one floating concrete batching plant was operated on-site during the reporting period.
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 was no marine works conducted during the reporting period and therefore, no relevant monitoring result is reported.
7.5.5 There was no marine works conducted during the reporting period and therefore, no ecology monitoring result is reported.
7.6...... Summary of Complaints, Notification of Summons and Successful Prosecution
7.6.1 There were two complaints received in relation to the environmental impacts during the reporting period. The summary of environmental complaints is presented in Table 7.1. The details of cumulative statistics of Environmental Complaints are provided in Appendix H.
Table 7.1: Summary of Environmental Complaints for the Reporting Month
|
Log No. |
Environmental Complaint Ref. No. |
Date of Complaint Receipt |
Description |
|
004 |
ENPO-C0107 |
14 December 2016 |
Noise |
|
005 |
ENPO-C0108 |
28 December 2016 |
Hygiene on site |
7.6.2 The first complaint (ENPO-C0107) was received by EPD from a member of the public on 13 December 2016 and was referred by EPD to the ENPO. Then the ENPO forwarded the complaint by email to the R.E. (AECOM Asia Co. Ltd.), the Contractor (China Harbour Engineering Co. Ltd.) and the ET (MateriaLab Consultants Ltd.) of Contract No. HY/2013/03 on 14 December 2016.
........... Details of Complaint
........... One complaint was forwarded by IEC on 14 December 2016, with the information provided by the EPD.
........... A member of the public complained about hammering noise that possibly came from construction site’s operation overnight recently. As there are many construction sites nearby, the complainant could not confirm the exact source, but believed the noise was most likely to come from the construction sites of HZMB.
........... On 20 December 2016, EPD supplemented the information as follow:
........... "The complainant lives in Seaview Crescent. According to the complainant, he sometimes hears noise created by impacting metals or metal/ground, particularly in December 2016".
........... Investigation of Complaint
........... Date Complaint Investigated by Environmental Team: 14 and 20 December 2016
........... Summary of Investigation
........... Interview was conducted on 14 and 20 December 2016 with Mr. Marko Chan, Assistant Environmental Manager of CHEC and site management. The construction works stopped before 23:00 normally; ONLY overnight concreting will be conducted under emergency case, and there was no continuous hammering during night time from 01 November 2016 to 19 December 2016.
........... Investigation Results
........... The ET of Contract No. HY/2013/03 concluded that the captioned complaint is not related to the construction activities of our contract. Nevertheless, the Contractor had been reminded on complying with the specific CNP for overnight operation and reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:
· Construction Noise (air borne):
N1: Use of good site practices to limit noise emissions: machines and plants (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum; and
N5: sequencing operation of construction plants where practicable.
........... Follow up status (complaints)
........... During weekly site audit on 03, 10, 17 and 25 November 2016, 02, 08 and 15 December 2016, ET confirmed that the Contractor had provided workable and effective noise mitigation measures between 0700 and 1900 hours on normal weekdays. Mitigation measures implemented include: 1. Machines and generators that may be in intermittent use were shut down between work periods; 2. Silencers or mufflers on construction equipment were properly fitted and maintained without significant noise generation; 3. Generators were situated as far away from NSRs as possible and practicable; and 4. Material stockpiles, site office and other structures were effectively utilized, where practicable, to screen noise from on-site construction activities.
........... Recommendation to the Contractor
........... The Contractor was reminded to:
........... 1. Review measures to control construction site noise levels, such as the use of temporary noise barriers and avoid noisy construction works during night time.
........... 2. Use movable noise barriers or full enclosure for noisy operations as far as practicable.
........... 3. Sequence operations of noisy equipment.
........... 4. Comply with the specific CNP for overnight operation.
........... Follow up Status (Overall)
........... The captioned complaint is not valid and therefore, no additional follow up is needed. However, ET has proposed several recommendations to the Contractor, and reminded on complying with the specific CNP for overnight operation to the Contractor. According to site audit conducted recently, ET confirmed all mitigation measures stipulated in the EMIS had been implemented during site audit on 03, 10, 17 and 25 November 2016, 02, 08 and 15 December 2016, in particular to the following aspect:
· Construction Noise (air borne):
N1: Use of good site practices to limit noise emissions: machines and plants (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum; and
N5: Sequencing operation of construction plants where practicable.
7.6.3 The second complaint (ENPO-C0108) was received by Highways Department from a member of the public on 28 December 2016 and was referred by Highways Department to the ENPO. Then the ENPO forwarded the complaint by email to the R.E. (AECOM Asia Co. Ltd.), the Contractor (China Harbour Engineering Co. Ltd.) and the ET (MateriaLab Consultants Ltd.) of Contract No. HY/2013/03 on 28 December 2016.
........... Details of Complaint
........... One complaint was forwarded from IEC on 28 December 2016, with the information provided by Highways Department.
........... The complainant complained that there are many problems observed at the construction site of HZMB artificial island of Lantau. The complainant specified that mosquito breeding problem within the construction site was severe. Toilet’s hygiene was poor and lack of flushing facilities, which were belonged to CHEC’s construction site.
........... Investigation of Complaint
........... Date Complaint Investigated by Environmental Team: 29 December 2016
........... Summary of Investigation
........... Interview was conducted on 29 December 2016 with Mr. Marko Chan, Assistant Environmental Manager of CHEC and site management. CHEC has strengthened the mosquito prevention and control work. Includes remove stagnant water regularly, and apply anti-mosquito larvicides into the stagnant water where accumulation of water was unavoidable at the construction site of Contract No. HY/2013/03.
........... Investigation Results
........... The ET of Contract No. HY/2013/03 concluded that the captioned complaint is not related to the construction activities of our contract. Nevertheless, the Contractor had been reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:
· Waste Management (Construction Waste)
WM4: Sewage
Adequate numbers of portable toilets should be provided for the workers. The portable toilets should be maintained in a state which will not deter the workers from utilizing these portable toilets. Night soil should be collected by licensed collectors regularly.
........... Follow up status (complaints)
........... During weekly site audit on 02, 08, 15, 22 and 29 December 2016, ET confirmed that the Contractor had provided workable and effective sewage mitigation measures on site. Mitigation measures implemented include: 1. Remove stagnant water regularly, and apply anti-mosquito larvicides into the stagnant water where accumulation of water was unavoidable; 2. Adequate numbers of portable toilets were provided for the workers. The portable toilets were maintained in a state which will not deter the workers from utilizing these portable toilets. Night soil was collected by licensed collectors regularly.
........... Recommendation to the Contractor
........... The Contractor was reminded to:
........... 1. Remove stagnant water regularly, and apply anti-mosquito larvicides into the stagnant water where accumulation of water was unavoidable.
........... 2. Adequate numbers of portable toilets should be provided for the workers. The portable toilets should be maintained in a state which will not deter the workers from utilizing these portable toilets. Night soil should be collected by licensed collectors regularly.
........... Follow up Status (Overall)
........... The captioned complaint is not valid and therefore, no additional follow up is needed. However, ET has proposed several recommendations to the Contractor, and reminded on complying with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual to the Contractor. According to site audit conducted recently, ET confirmed all mitigation measures stipulated in the EMIS had been implemented during site audit on 02, 08, 15, 22 and 29 December 2016, in particular to the following aspect:
· Waste Management (Construction Waste)
WM4: Sewage
Adequate numbers of portable toilets should be provided for the workers. The portable toilets should be maintained in a state which will not deter the workers from utilizing these portable toilets. Night soil should be collected by licensed collectors regularly.
7.6.4 There was no notification for summons or prosecutions received in relation to the environmental impact during this reporting period.
7.6.5 Statistics on environmental complaints, notifications of summons and successful prosecutions are provided in Appendix H.