Contract No. HY/2013/04 HZMB HKBCF –
Infrastructure Works Stage II (Southern Portion)
Monthly EM&A Report
for May 2017
June
2017
China State Construction Engineering (Hong Kong) Limited
Mott
MacDonald
20/F
AIA Kowloon Tower
Landmark
East
100
How Ming Street
Kwun
Tong
Kowloon
Hong
Kong
T
+852 2828 5757
F
+852 2827 1823
mottmac.hk
0 |
June 2017 |
Brandon Wong |
Gary Chow |
Eric Ching |
Submission |
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Contents
This Monthly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract No. HY/2013/04 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Infrastructure Works Stage II (Southern Portion)” (hereafter referred to as “the Contract”) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to China State Construction Engineering (Hong Kong) Limited (hereafter referred to as “the Contractor”) and Mott MacDonald Hong Kong Limited (MMHK) was appointed as the Environmental Team (ET) by the Contractor.
The Contract is part of the “Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities” (HZMB HKBCF) Project which is a “Designated Project” under Schedule 2 of the Environmental Impact Assessment (EIA) Ordinance (Cap. 499) and for which an EIA Report (Register No. AEIAR-145/2009) was prepared and approved. The current Environmental Permit (EP) for HKBCF, namely No. EP-353/2009/K, was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Commencement of the Contract took place on 13 March 2015 and the construction works commenced on 13 July 2015.
Mott MacDonald Hong Kong Limited has been appointed by the Contractor to implement the Environmental Monitoring & Audit (EM&A) programme for the Contract in accordance with the Updated EM&A Manual for HKBCF (Version 1.0) and will be providing environmental team services for the Contract.
This is the 23rd Monthly EM&A Report for the Contract which summaries findings of the EM&A works during the reporting period from 1 to 31 May 2017 (the “reporting period”).
Environmental Monitoring and Audit Progress
The monthly EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). It should be noted that the air quality and noise monitoring works for the Contract are covered by Contract No. HY/2010/02 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works” and Contract No. HY/2011/03 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF”. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7 and noise monitoring at NMS2 and NMS3B as part of EM&A programme if these monitoring stations are no longer covered under Contract Nos. HY/2010/02 and HY/2011/03. However, this is subject to ENPO’s final decision on which ET should carry out the monitoring work at these stations.
The dates of site inspection during the reporting period are listed below:
● Environmental Site Inspection: 4, 10, 17, 22 and 31 May 2017
Breaches of Action and Limit Levels
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.
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.
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.
Complaint Log
There were no complaints received in relation to the environmental impact during the reporting period.
Notifications of Summons and Successful Prosecutions
There were no notifications of summons or prosecutions received during this reporting period.
Reporting Changes
On 15 May 2017, IEC/ENPO notified ET of changes to the EM&A Programme regarding some water quality monitoring stations and vessel-based transect lines for dolphin monitoring being conducted by Contract No. HY/2010/02. These changes were certified by the ETL of Contract No. HY/2010/02 and verified by the IEC on 24 March 2017, and approved by EPD on 12 May 2017. The changes are summarised in Table ES.1 and Table ES.2 below.
Table ES.1: Changes to Impact Water Quality Monitoring Stations (with effect from 15 May 2017)
Station |
Description |
East |
North |
IS10* |
Impact Station (Close to HKBCF construction site) |
812577 |
820670 |
IS10(N)# |
Impact
Station (Close to HKBCF construction site) |
812942 |
820881 |
SR5* |
Sensitive receivers (Artificial Reef in NE Airport) |
811489 |
820455 |
SR5(N)# |
Sensitive
receivers (Artificial Reef in NE Airport) |
812569 |
821475 |
CS(Mf)3* |
Control Station |
809989 |
821117 |
CS(Mf)3(N)# |
Control
Station |
808814 |
822355 |
Remark: Three monitoring stations, namely IS10, SR5 and CS(Mf)3 (marked *), were replaced by IS10(N), SR5(N) and CS(Mf)3(N) respectively (marked #, shown in bold red font).
Table ES.2: New Coordinates of Vessel-based Transect Lines (with effect from 15 May 2017)
Transect |
HK
Grid System |
|
|
X |
Y |
2 |
805476 |
820800 |
|
805476 |
826654 |
3 |
806464 |
821150 |
|
806464 |
822911 |
4 |
807518 |
821500 |
|
807518 |
829230 |
5 |
808504 |
821850 |
|
808504 |
828602 |
6 |
809490 |
822150 |
|
809490 |
825352 |
7 |
810499 |
822000 |
|
810499 |
824613 |
24 |
805476 |
815900 |
|
805476 |
819100 |
Remark: New coordinates shown in bold red font.
Future Key Issues
The future key issues to be undertaken in the upcoming month are:
● Pile cap, pier column, retaining wall, pump house, segment erection, segment delivery (marine-based), excavation with road and drainage works, marine-based works for the construction of box culverts.
● Generation of excavated marine sediment and/or transport to HKBCF Contract No. HY/2013/03 (if required).
On 13 March
2015, Mott MacDonald Hong Kong Limited (MMHK) was commissioned by China State
Construction Engineering (Hong Kong) Limited (also referred to as “the
Contractor”) to undertake the Environmental Team (ET) services (including
environmental monitoring and audit (EM&A)) for Contract No. HY/2013/04 “Hong
Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities –
Infrastructure Works Stage II (Southern Portion)” (“the Contract”) for the Highways
Department of Hong Kong Special Administrative Region (HKSAR).
The Contract is part of the “Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities” (HZMB HKBCF) Project which is a “Designated Project” under Schedule 2 of the Environmental Impact Assessment (EIA) Ordinance (Cap. 499) and for which an EIA Report (Register No. AEIAR-145/2009) was prepared and approved. The current Environmental Permit (EP) for HKBCF, namely No. EP-353/2009/K, was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Commencement of the Contract took place on 13 March 2015 and the construction works commenced on 13 July 2015. The works areas of the contract are shown in Appendix A.
This is the 23rd Monthly EM&A Report
summarising the findings of
EM&A activities conducted under the Contract from 1 to 31 May 2017 (the
“reporting period”) and is submitted to
fulfil Condition 5.4 of the EP.
The Proposed works
under this Contract comprise the following:
● Construction of vehicular bridge and at-grade
roads at the southern portion of Hong Kong Boundary Crossing Facilities;
● Construction of associated street lighting,
street furniture, road marking, road signage, box culverts and outfalls,
drainage, sewerage, fresh water and flushing water supply, irrigation,
landscape, electrical and mechanical (E&M), utilities and services works;
● Provisioning of civil engineering works and
power supply for Traffic Control and Surveillance System (TCSS); and
● Other works in accordance with the Contract.
The organisation chart and lines of communication with respect to the on-site environmental management structure together with the contact information of the key personnel are shown in Appendix B. The key personnel contact names and numbers are summarized in Table 1.3.
Table 1.3: Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
Engineer or Engineer’s Representative (AECOM Asia Co. Ltd.) |
Chief Resident Engineer |
Alfred Cheng |
3958 7471 |
3468 2076 |
Environmental Project Office / Independent Environmental Checker
(Ramboll Environ Hong Kong Limited) |
Environmental Project Office Leader |
Y H Hui |
3465 2888 |
3465 2899 |
Independent Environmental Checker |
Raymond Dai |
3465 2888 |
3465 2899 |
|
|
Environmental Site Supervisor |
Ray Yan |
5181 8165 |
3465 2899 |
Contractor (China State Construction Engineering (Hong Kong) Limited) |
Site Agent |
Eddie Tang |
9863 7686 |
2459 4336 |
Environmental Officer |
Jason Chung |
9127 8369 |
2459 4336 |
|
Environmental Team (Mott MacDonald Hong Kong Limited) |
Environmental Team Leader |
Gary Chow |
2828 5874 |
2827 1823 |
24-hour Complaint Hotline |
- |
- |
5236 7111 |
- |
The Construction Works Programme of the Project is provided in Appendix C.
A summary of the construction activities undertaken during this reporting period is shown below:
● Box Culvert D: Bay 3 Base slab completed, Bay 4 Wall + roof slab completed
● Box Culvert C: Bay 5 Base slab completed
● Pile Cap: 4 completed
● Pier Column; 6 completed
● Segment Erection; 62 completed
● Segment Delivery: 134 pcs (marine-based)
● No generation of excavated marine sediment
The air quality monitoring works for the Contract are covered by Contract No. HY/2010/02 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works” and Contract No. HY/2011/03 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF”. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7 as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract No. HY/2010/02 and HY/2011/03. Figure 1 shows the locations of air monitoring stations.
Table 2.1: Construction Dust Monitoring Locations
Identification No. |
Location Description |
AMS6(1) |
Dragonair/CNAC (Group) Building |
AMS7(1) |
Hong Kong SkyCity Marriot Hotel |
Remarks: (1) The ET of this Contract should conduct impact air quality monitoring at the AMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.
The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology and monitoring schedule are detailed in the monthly EM&A Reports prepared for Contract Nos. HY/2010/02 and HY/2011/03.
The Action and Limit Levels for 1-hr TSP and 24-hr TSP are provided in Table 2.2 and Table 2.3 respectively.
Table 2.2: Action and Limit Levels for 1-hour TSP
Monitoring Station |
Action Level, mg/m3 |
Limit Level, mg/m3 |
AMS6 – Dragonair / SNAC (Group) Building (HKIA) |
360 |
500 |
AMS7 – Hong Kong SkyCity Marriot Hotel |
370 |
500 |
Table 2.3: Action and Limit Levels for 24-hour TSP
Monitoring Station |
Action Level, mg/m3 |
Limit Level, mg/m3 |
AMS6 – Dragonair / SNAC (Group) Building (HKIA) |
173 |
260 |
AMS7 – Hong Kong SkyCity Marriot Hotel |
183 |
260 |
The event and action plan is provided in Appendix D.
If exceedance(s) at these stations is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.
The monitoring results for AMS6 and AMS7 are reported in the monthly EM&A Reports prepared for Contract Nos. HY/2011/03 and HY/2010/02 respectively.
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.
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.
The noise monitoring works for the Contract are covered by Contract No. HY/2010/02 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works”. The ET of the Contract or another ET of the HZMB project is required to conduct noise monitoring at NMS2 and NMS3B as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02. Figure 2 shows the locations of noise monitoring stations.
Table 3.1: Construction Noise Monitoring Locations
Identification No. |
Location Description |
NMS2(1) |
Seaview Crescent |
NMS3B(1) (2) |
Site Boundary of Site Office Area at Works Area WA2 |
Remarks: (1) The ET of this Contract should conduct impact noise monitoring at the NMS listed in the table as part of EM&A programme according to the latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.
(2) The Action and Limit Levels for schools will be applied for this alternative monitoring location.
The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology and monitoring schedule are detailed in the monthly EM&A Reports prepared for Contract No. HY/2010/02.
The Action and Limit Levels for construction noise are defined in Table 3.2.
Table 3.2: Action and Limit Level for Construction Noise
Parameter |
Action Level |
Limit Level |
07:00 – 19:00 hours on normal weekdays |
When one documented complaint is received |
75 dB(A)* |
Notes: If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.
* Reduce to 70 dB(A) for schools and 65 dB(A) during school examination period.
The monitoring results for NMS2 and NMS3B are reported in the monthly EM&A Reports prepared for Contract No. HY/2010/02. No noise exceedances were recorded at stations NMS2 and NMS3B by the ET of Contract No. HY/2010/02 during the reporting period.
The water monitoring works for the Contract are covered by Contract No. HY/2010/02 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works”. A total of twenty-one stations (nine Impact Stations, seven Sensitive Receiver Stations and five Control/Far Field Stations) are covered by the current EM&A programme. The ET of the Contract or another ET of the HZMB project is required to conduct water quality monitoring at these stations as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02. Table 4.1 and Figure 3 shows the locations of water quality monitoring stations.
Table 4.1: Impact Water Quality Monitoring Stations
Station |
Description |
East |
North |
IS5 |
Impact Station (Close to HKBCF construction site) |
811579 |
817106 |
IS(Mf)6 |
Impact Station (Close to HKBCF construction site) |
812101 |
817873 |
IS7 |
Impact Station (Close to HKBCF construction site) |
812244 |
818777 |
IS8 |
Impact Station (Close to HKBCF construction site) |
814251 |
818412 |
IS(Mf)9 |
Impact Station (Close to HKBCF construction site) |
813273 |
818850 |
IS10* |
Impact Station (Close to HKBCF construction site) |
812577 |
820670 |
IS10(N)# |
Impact
Station (Close to HKBCF construction site) |
812942 |
820881 |
IS(Mf)11 |
Impact Station (Close to HKBCF construction site) |
813562 |
820716 |
IS(Mf)16 |
Impact Station (Close to HKBCF construction site) |
814328 |
819497 |
IS17 |
Impact Station (Close to HKBCF construction site) |
814539 |
820391 |
SR3 |
Sensitive receivers (San Tau SSSI) |
810525 |
816456 |
SR4(N) |
Sensitive receivers (Tai Ho) |
814705 |
817859 |
SR5* |
Sensitive receivers (Artificial Reef in NE Airport) |
811489 |
820455 |
SR5(N)# |
Sensitive
receivers (Artificial Reef in NE Airport) |
812569 |
821475 |
SR6 |
Sensitive receivers (Sha Chau and Lung Kwu Chau Marine Park) |
805837 |
821818 |
SR7 |
Sensitive receivers (Tai Mo Do) |
814293 |
821431 |
SR10A |
Sensitive receivers (Ma Wan FCZ) 1 |
823741 |
823495 |
SR10B(N) |
Sensitive receivers (Ma Wan FCZ) 2 |
823683 |
823187 |
CS(Mf)3* |
Control Station |
809989 |
821117 |
CS(Mf)3(N)# |
Control
Station |
808814 |
822355 |
CS(Mf)5 |
Control Station |
817990 |
821129 |
CS4 |
Control Station |
810025 |
824004 |
CS6 |
Control Station |
817028 |
823992 |
Remark: On 15 May 2017, IEC/ENPO notified ET of changes to the EM&A Programme regarding some water quality monitoring stations being conducted by Contract No. HY/2010/02. These changes were certified by the ETL of Contract No. HY/2010/02 and verified by the IEC on 24 March 2017, and approved by EPD on 12 May 2017. Three monitoring stations, namely IS10, SR5 and CS(Mf)3 (marked *), were replaced by IS10(N), SR5(N) and CS(Mf)3(N) respectively (marked #, shown in red bold font).
The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule, meteorological information are detailed in the monthly EM&A Reports prepared for Contract No. HY/2010/02.
The Action and Limit Levels for water quality are provided in Table 4.2.
Table 4.2: Action and Limit Levels for Water Quality
Parameters |
Action |
Limit |
DO in mg L-1 (Surface, Middle & Bottom) |
Surface and Middle |
|
SS in mg L-1 (depth-averaged)
at all monitoring stations and control stations |
23.5 and 120% of upstream control station's SS at the same tide of the
same day* |
34.4 and 130% of upstream control station's SS at the same tide of the
same day and 10mg/L for WSD Seawater intakes* |
27.5 and 120% of upstream control station's turbidity at the same tide
of the same day* |
47.0 and 130% of upstream control station's |
Remarks:
* Reference is made to EPD approval of adjustment of water quality assessment criteria issued and became effective on 18 February 2013.
Notes:
1. “depth-averaged” is calculated by taking the arithmetic means of reading of all three depths.
2. For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits.
3.
For
turbidity, SS, non-compliance of the water quality limits occurs when
monitoring result is higher than the limits.
4.
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.
5.
The 1%-ile of baseline data for dissolved oxygen
(surface and middle) and dissolved oxygen (bottom) are 4.2 mg/L and 3.6 mg/L
respectively.
If exceedance(s) at these stations is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.
The monitoring results for the monitoring stations are reported in the monthly EM&A Reports prepared for Contract No. HY/2010/02. No water quality monitoring exceedances were recorded by the ET of Contract No. HY/2010/02 during the reporting period.
The dolphin monitoring works for the Contract are covered by Contract No. HY/2010/02 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works”. The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at the twenty-three transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2010/02. The dolphin monitoring should adopt line-transect vessel survey method. The survey follows pre-set and fixed transect lines in the two areas defined by AFCD as: Northeast Lantau survey area; and Northwest Lantau survey area.
On 15 May 2017, IEC/ENPO notified ET of changes to the EM&A Programme regarding some vessel-based transect lines for dolphin monitoring being conducted by Contract No. HY/2010/02. These changes were certified by the ETL of Contract No. HY/2010/02 and verified by the IEC on 24 March 2017, and approved by EPD on 12 May 2017.
Table 5.1 shows the co-ordinates for the transect lines and layout map until 15 May 2017. The co-ordinates for those transect lines which were changed on 15 May 2017 are summarised in Table 5.2 below.
The revised layout map showing the transect lines have been provided by AFCD and are shown in Figure 4.
Table 5.1: Impact Dolphin Monitoring Line Transect Co-ordinates (Provided by AFCD) (until 15 May 2017)
Transect |
HK
Grid System |
Long
Lat in WGS84 |
||
|
X |
Y |
Long |
Lat |
1# |
804671 |
815456 |
113.870287 |
22.277678 |
|
804671 |
831404 |
113.869975 |
22.421696 |
2# |
805475 |
815913 |
113.878079 |
22.281820 |
|
805477 |
826654 |
113.877896 |
22.378814 |
3 |
806464 |
819435 |
113.887615 |
22.313643 |
|
806464 |
822911 |
113.887550 |
22.345030 |
4 |
807518 |
819771 |
113.897833 |
22.316697 |
|
807518 |
829230 |
113.897663 |
22.402113 |
5 |
808504 |
820220 |
113.907397 |
22.320761 |
|
808504 |
828602 |
113.907252 |
22.396462 |
6 |
809490 |
820466 |
113.916965 |
22.323003 |
|
809490 |
825352 |
113.916884 |
22.367128 |
7# |
810499 |
820880 |
113.926749 |
22.326757 |
|
810499 |
824613 |
113.926688 |
22.360464 |
8# |
811508 |
821123 |
113.936539 |
22.328966 |
|
811508 |
824254 |
113.936486 |
22.357241 |
9# |
812516 |
821303 |
113.946320 |
22.330606 |
|
812516 |
824254 |
113.946279 |
22.357255 |
10* |
813525 |
820827 |
113.956112 |
22.326321 |
|
813525 |
824657 |
113.956066 |
22.360908 |
11# |
814556 |
818853 |
113.966155 |
22.304858 |
|
814556 |
820992 |
113.966125 |
22.327820 |
12 |
815542 |
818807 |
113.975726 |
22.308109 |
|
815542 |
824882 |
113.975647 |
22.362962 |
13 |
816506 |
819480 |
113.985072 |
22.314192 |
|
816506 |
824859 |
113.985005 |
22.362771 |
14 |
817537 |
820220 |
113.995070 |
22.320883 |
|
817537 |
824613 |
113.995018 |
22.360556 |
15 |
818568 |
820735 |
114.005071 |
22.325550 |
|
818568 |
824433 |
114.005030 |
22.358947 |
16 |
819532 |
821420 |
114.014420 |
22.331747 |
|
819532 |
824209 |
114.014390 |
22.356933 |
17 |
820451 |
822125 |
114.023333 |
22.338117 |
|
820451 |
823671 |
114.023317 |
22.352084 |
18 |
821504 |
822371 |
114.033556 |
22.340353 |
|
821504 |
823761 |
114.033544 |
22.352903 |
19 |
822513 |
823268 |
114.043340 |
22.348458 |
|
822513 |
824321 |
114.043331 |
22.357971 |
20 |
823477 |
823402 |
114.052695 |
22.349680 |
|
823477 |
824613 |
114.052686 |
22.360610 |
21 |
805476 |
827081 |
113.877878 |
22.382668 |
|
805476 |
830562 |
113.877811 |
22.414103 |
22 |
806464 |
824033 |
113.887520 |
22.355164 |
|
806464 |
829598 |
113.887416 |
22.405423 |
23 |
814559 |
821739 |
113.966142 |
22.334574 |
|
814559 |
824768 |
113.966101 |
22.361920 |
Remarks:
(a) * Due to the presence of deployed silt curtain systems at the site boundaries of the Contract, some of the transect lines shown in Figure 5.1 could not be fully surveyed during the regular survey. Transect 10 is reduced from 6.4km to approximately 3.6km in length due to the HKBCF construction site. Therefore the total transect length for both NEL and NWL combined is reduced to approximately 108km
(b) # Coordinates for transect lines 1, 2, 7, 8, 9 and 11 have been updated in respect to the Proposal for Alteration of Transect Line for Dolphin Monitoring approved by EPD on 19 August 2015.
Table 5.2: New Co-ordinates of Revised Impact Dolphin Monitoring Line Transects (with effect from 15 May 2017)
Transect |
HK
Grid System |
|
|
X |
Y |
2 |
805476 |
820800 |
|
805476 |
826654 |
3 |
806464 |
821150 |
|
806464 |
822911 |
4 |
807518 |
821500 |
|
807518 |
829230 |
5 |
808504 |
821850 |
|
808504 |
828602 |
6 |
809490 |
822150 |
|
809490 |
825352 |
7 |
810499 |
822000 |
|
810499 |
824613 |
24 |
805476 |
815900 |
|
805476 |
819100 |
Remark: New coordinates shown in red bold font.
The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule, meteorological information are detailed in the monthly EM&A Reports prepared for Contract No. HY/2010/02.
The Action and Limit Levels for Chinese White Dolphin Monitoring are provided in Table 5.3 and Table 5.4, respectively.
Table 5.3: Action and Limit Levels for Chinese White Dolphin Monitoring - Approach to Define Action Level (AL) and Limit Level (LL)
|
North Lantau Social Cluster |
|
|
NWL |
|
Action Level |
(STG < 70%
of baseline) & (ANI < 70%
of baseline) |
(STG < 70%
of baseline) & (ANI < 70%
of baseline) |
Limit Level |
[(STG <
40% of baseline) & (ANI < 40% of baseline)] AND [(STG <
40% of baseline) & (ANI < 40% of baseline)] |
Table 5.4: Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White Dolphin Monitoring
|
North Lantau Social Cluster |
|
|
NEL |
NWL |
Action Level |
(STG <
4.2) & (ANI < 15.5) |
(STG <
6.9) & (ANI < 31.3) |
Limit Level |
[(STG <
2.4) & (ANI <8.9)] AND [ (STG < 3.9) & (ANI < 17.9)] |
The event and action plan is provided in Appendix D.
If exceedance(s) at these survey transect(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.
The monitoring results for dolphin monitoring are reported in the monthly EM&A Reports prepared for Contract No. HY/2010/02.
Site Inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control mitigation measures for the project. During the reporting period, site inspections were carried out on 4, 10, 17, 22 and 31 May 2017.
Particular observations during the site inspections and corrective actions undertaken by the Contractor are described below.
a. A generator underneath the bridge deck was without NRMM label. The Contractor was reminded to display the relevant NRMM label as required under the relevant regulation. Subsequently, a new generator with properly-sized NRMM label had replaced this generator. The observation was closed on 31 May 2017.
26 April 2017
a. A panel door of the generator under bridge D14a was open. The Contractor was reminded to keep this door closed during operation to reduced noise impact. Subsequently, the panel door was closed. The observation was closed on 4 May 2017.
4 May 2017
a. The works site at a retaining wall ramp for bridge D14a was untidy with loose items of construction waste and general refuse observed. Subsequently, the loose items were cleared. The observation was closed on 10 May 2017.
10 May 2017
a. Oily water was observed in a drip tray next to Box Culvert C. Subsequently, the oily water was cleared from the drip tray. The observation was closed on 17 May 2017.
b. Oil drums on bare ground were observed next to bridge D9a. Subsequently, the oil drums were removed. The observation was closed on 17 May 2017.
17 May 2017
a. Loose general refuse items were observed at excavation area next to HKBCF site office and at pump house works area. Subsequently, the loose general refuse was cleared. The observation was closed on 22 May 2017.
b. A drip tray was full of accumulated stagnant water. Also, the oil drum inside this drip tray was no adequately labelled. Subsequently, chemical label for the oil drum was provided. The observation was closed on 31 May 2017.
22 May 2017
a. No new observations were made.
31 May 2017
a. Small air blower was observed. The Contractor was reminded to check if a NRMM label is required for this equipment. Follow-up actions for the outstanding observation will be inspected during the upcoming site inspections and reported in the coming reporting period.
The Contractor registered as a chemical waste producer for the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting. As a practical means, the disposal operation is managed by a single HKBCF contractor who is also responsible for applying dumping permit and its subsequent extension applications from EPD. Contract No. HY/2013/03 has been assigned to coordinate and arrange for disposal of extracted marine sediment from this Contract.
There was no generation of excavated sediment for treatment during this reporting period. Any treatment of excavated marine sediment will be conducted using cement solidification/ stabilization (Cement S/S) techniques and the treated sediment will be reused onsite for either backfilling or landscaping (e.g. berm material).
The monthly summary of waste flow table is detailed in Appendix E.
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.
After the acceptance of the review of the approved Sediment Quality Report (SQR) for this Project under EPD letter dated 19 August 2015, an approval to dispose the marine sediment extracted from bored piling for this Project was then approved under memo from Secretary, Marine Fill Committee of CEDD dated 20 August 2015 for the disposal of marine sediment extracted from bored piling works. The disposal sites allocated to this Project are the Mud Pit CMP2 of the Confined Marine Sediment Disposal Facility to the South of The Brothers (or at the East of Sha Chau). As advised by CEDD in the memo dated 19 February 2016, from 00:00 on 22 March 2016 onward, the disposal space at CMP2 of the South of The Brothers is closed and all disposal of contaminated sediment is to be carried out at CMP Vd to the East of Sha Chau (ESC).
As Contract No. HY/2013/01 has commenced treatment of the extracted marine sediment, treatment will continue and the treated marine sediment will be re-used within the HKBCF Island. On the other hand, Contract Nos. HY/2013/02, HY/2013/03 and HY/2013/04 have not commenced the treatment of extracted marine sediment. Therefore the marine sediment extracted from these three Contracts will be disposed to the allocated disposal sites directly without treatment. As a practical means, the disposal operation is managed by one contractor who is also responsible for applying dumping permit and its subsequent extension applications from EPD. Contract No. HY/2013/03 has been assigned to coordinate and arrange for disposal of extracted marine sediment from all three Contracts.
The SQR was further reviewed in mid-2016. EPD has no comment to extend the validity of the SQR to August 2017 under letter dated 18 August 2016.
Based on the actual piling operation, the estimated quantity of marine sediment to be extracted has been revised from 85,000 m3 to 126,000 m3 (bulk volume). EPD has no comments on the request as in the letter dated 20 October 2016. The Secretary of Marine Fill Committee, CEDD approved the increasing quantity in the memo dated 10 November 2016.
During the course of reviewing the SQR, it was noted that the contamination level of the marine sediment extracted from the inner part of the HKBCF Island was not identified during the previous sampling and testing. As requested by EPD, sampling and testing are required. The Sediment Sampling and Testing Proposal (SSTP) for the inner area of the HKBCF Island was approved by EPD on 2 June 2016.
As in the agreed SSTP for the inner area of the HKBCF Island, samples were taken from the seventeen batches of stockpiled marine sediments and from five boreholes each in one of the five sampling grids. After conducting chemical tests on samples, six batches of stockpiled samples under Contract No. HY/2013/03 and all eight batches of stockpiled samples under Contract No. HY/20013/04 are classified as Category L sediment. The Secretary of Marine Fill Committee of CEDD allocated disposal sites under memo dated 24 October 2016 and dated 22 November 2016 for disposal of a total of 9,500 m3 in-situ volume of Category L sediment (using a bulk factor of 1.3). The Category L sediment was disposed in December 2016.
One sample from the batch of stockpiled marine sediment under Contract No. HY/2013/03 and samples from all five sampling grids had contamination levels exceeding the Lower Chemical Exceedance Levels (LCEL) and biological screenings were carried out. All samples passed the biological screenings and are classified as Category Mp sediment and to be disposed off site using Type II confined marine disposal method the same method used for marine sediment extracted from other part of the HKBCF Island.
The barge for disposal of marine sediment will morn at the temporary loading and unloading at the east shore of the HKBCF Island, which has been being used by reclamation contractor (Contract No. HY/2010/02) for reclamation activities. In terms of safety consideration, each dumping date will be allocated to one Contract. The quantity of marine sediment disposed on the date is from one Contract.
During dumping, each Contractor is responsible for transporting the marine sediment from his site area to the barge. The estimated quantity of marine sediment in each truck is confirmed by Resident Site Staff of each Contract. The trip tickets for transportation and disposal of marine sediment are collected and checked. Contract No. HY/2013/03 as the dumping permit holder is responsible for reporting to EPD the quantity disposed of as the condition stipulated in the dumping permit.
No marine sediment extracted from bored piling in this Contract was disposed to allocated dumping site via Contract No. HY/2013/03 during May 2017. The quantities disposed up to end of April 2017 are in following table (Table 6.1):
Table 6.1: Summary of Marine Sediment disposed to Dumping Site via Contract No. HY/2013/03
Month/Year |
Type
of Sediment and Quantity Disposed (m3) |
|
|
Cat. L (in
Type I) |
Type II |
Up to end April 2017 |
3,570 |
39,814 |
May 2017 |
0 |
0 |
Total = |
3,570 |
39,814 |
Note: For monthly breakdown of these quantities, please refer to the waste flow table in Appendix E.
The valid environmental licenses and permits during the reporting period are summarized in Appendix F.
In response to the site audit findings, the Contractor carried out corrective actions.
A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix G. Most of the necessary mitigation measures were implemented properly.
Implementation status of the Regular Marine Travel Route Plan (RMTRP) was checked by ET. Training of marine travel route for marine vessel operator was given to relevant staff and relevant records were kept properly. The marine traffic records and geographical plots of all the vessel tracks to demonstrate the conformance of the vessel to the proposed route in May 2017 would be provided to ER, ETL and IEC/ENPO for checking within the month of June 2017.
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.
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.
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.
Complaints
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.
Notification of Summons and Successful Prosecution
No notification of summons or prosecutions was received during the reporting period.
Statistics on notifications of summons and successful prosecutions are summarized in Appendix H.
As informed by the Contractor, the major construction activities for June 2017 are summarized in Table 7.1.
Table 7.1: Construction Activities for June 2017
Site Area |
Description of Activities |
HKBCF |
●
Pile cap, pier column, retaining wall, pump
house, segment erection, segment delivery (marine-based), excavation with
road and drainage works, marine-based works for the construction of box
culverts. ●
Generation of excavated marine sediment and/or
transport to HKBCF Contract No. HY/2013/03 (if required). |
The tentative schedule for weekly site inspections for June 2017 is provided in Appendix I.
Commencement of the Contract took place on 13 March 2015 and the construction works of the Contract commenced on 13 July 2015.
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.
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.
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.
Environmental site inspections were carried out on 4, 10, 17, 22 and 31 May 2017. Recommendations on remedial actions were given to the Contractor for the deficiencies identified during the site inspections.
There were no complaints received in relation to the environmental impact during the reporting period.
There were no notifications of summons or prosecutions received during the reporting period.
Appendix A. Location of Works Areas
Appendix B. Project Organization for Environmental Works
Appendix C. Construction Programme
Appendix D. Event and Action Plan
Appendix E. Waste Flow Table
Appendix F. Environmental Licences and Permits
Appendix G. Implementation Schedule for Environmental Mitigation Measures (EMIS)
Appendix H. Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions
Appendix I. Environmental Site Inspection Schedule