Certified by Environmental Team Leader
Verified by Independent Environmental Checker
Contract No. HY/2013/04 HZMB HKBCF –
Infrastructure Works Stage II (Southern Portion)
Quarterly EM&A Report
for January 2017 to March 2017
April
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
Contents
This Quarterly 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 7th Quarterly EM&A Report for the Contract which summaries findings of the EM&A works during the reporting period from 1 January 2017 to 31 Mach 2017 (the “reporting period”).
Environmental Monitoring and Audit Progress
The 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:
● 3, 10, 17 and 23 January, 3, 7, 15, 20 and 28 February and 7, 14, 20 and 28 March 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 is reported in 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 was one complaint received in relation to the environmental impact during the reporting period.
Log No. |
Environmental Complaint Ref. No. |
Date of Complaint Receipt |
Description |
005 |
ENPO-C0113 |
27 March 2017 |
Noise & Water Quality |
After investigation, it was concluded that the complaint was not related to Contract No. HY/2013/04.
Notifications of Summons and Successful Prosecutions
There were no notifications of summons or prosecutions received during this reporting period.
Reporting Changes
There was no reporting change during the reporting period.
This Quarterly 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. The works areas of the contract are shown in Appendix A.
This is the 7th Quarterly EM&A Report summarising the findings of EM&A activities conducted under the Contract from 1 January 2017 to 31 March 2017 (the “reporting period”).
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 1.1.
Table 1.1: 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 (until 21 February 2017) |
Ricky Hon |
9100 7509 |
2459 4336 |
|
Environmental
Officer (from 22 February 2017 until 20 March 2017) |
Xavier Lam |
9493 2944 |
2459 4336 |
|
Environmental
Officer (from 20 March 2017) |
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:
● Bored Pile: 7 no. completed
● Driven H Pile: 51 no. completed
● Box Culvert: 8 bays completed
● Pile Cap: 20 no. completed
● Pier Column: 14 no. completed
● Pier Head: 10 no. completed
● Segment Erection: 93 no. completed
● Segment Delivery: 183 no. completed (marine-based)
● Generation of excavated marine sediment and transport to HKBCF Contract No. HY/2013/03 for disposal.
The 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.
A summary of air and noise monitoring locations are presented in Table 2.1. The location of air quality and noise monitoring stations are shown as in Figure 1 and Figure 2, respectively.
Table 2.1: Construction Dust and Noise Monitoring Locations
Environmental Monitoring |
Identification No. |
Location Description |
Air Quality |
AMS6(1) |
Dragonair/CNAC (Group)
Building |
|
AMS7 (1) |
Hong Kong SkyCity Marriot Hotel |
Noise |
NMS2(2) |
Seaview
Crescent |
|
NMS3B(2)
(3) |
Site Boundary
of Site Office Area at Works Area WA2 |
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.
(2) 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.
(3) 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, monitoring schedule, meteorological information 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 |
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 Action and Limit Levels for construction noise are defined in Table 2.4.
Table 2.4: 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.
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 event and action plans for air quality and noise are provided in Appendix D.
Environmental mitigation measures for the contract were recommended in the approved EIA Report. Appendix E lists the recommended mitigation measures and the implementation status.
The monitoring results for AMS6 and AMS7 are reported in the monthly EM&A Reports (for January, February and March 2017) 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 is reported in the monthly EM&A Reports (for January, February and March 2017) 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 monitoring results for NMS2 and NMS3B are reported in the monthly EM&A Reports (for January, February and March 2017) 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.
In response to the site audit findings, the Contractor carried out corrective actions. Details of site audit findings and the corrective actions during the reporting period are presented in Appendix F.
A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E. 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. Marine traffic records which indicated the number of trips data for crane barge, flat top barge and tug boat on the implementation of RMTRP for December 2016, January 2017 and February 2017 were checked by ET within the reporting period. Marine traffic records of December 2016, January 2017 and February 2017 were provided by Contractor to ER, ETL and IEC/ENPO for checking within the months of January 2017, March 2017 and March 2017 respectively. The checking of marine traffic records of March 2017 will be reported in the next Quarterly EM&A Report. The implementation of marine traffic follows the Regular Marine Travel Route Plan with respect to ET’s checking on the marine traffic records for the 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 summary of waste flow table is detailed in Appendix G.
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.
Marine sediment extracted from bored piling in this Contract was disposed to allocated dumping site via Contract No. HY/2013/03 on 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 16 and 17 January and 15, 16 and 20 February 2017. The quantities disposed up to end of March 2017 are in following table (Table 3.1):
Table 3.1: 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
December 2016 |
3,570 |
31,882 |
January 2017 |
0 |
6,552 |
February 2017 |
0 |
1,380 |
March 2017 |
0 |
0 |
Total = |
3,570 |
39,814 |
Note: For monthly breakdown of these quantities, please refer to the waste flow table in Appendix G.
The valid environmental licences and permits during the reporting period are summarized in Appendix H.
Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 is reported in the monthly EM&A Reports (for January, February and March 2017) 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.
There was one complaint received in relation to the environmental impact during the reporting period. The summary of environmental complaints is presented in Table 4.1. The details of cumulative statistics of Environmental Complaints are provided in Appendix H.
Table 4.1: Summary of Environmental Complaints for the Reporting Month
Log No. |
Environmental Complaint Ref. No. |
Date of Complaint Receipt |
Description |
005 |
ENPO-C0113 |
27 March 2017 |
Noise &
Water Quality |
Environmental Complaint Ref. No. ENPO-C0113
The complaint covered noise and water quality aspects, as follows:
● Noise: The complaint was about very loud noise which according to the complainant’s observations were likely to originate from works near the HZMB BCF Island and which continued until late night hours.
● Water quality: The complaint was about pollutant in the open waters from the complainant’s residence. A photo was also provided by the complainant. According to the complainant, the pollution appeared to be caused by HZMB-related works.
As informed by the Contractor of HY/2013/04:
1. On 26 March 2017, works were conducted under Contract No. HY/2013/04 until 5pm and no further works were performed during evening and night-time hours on that day. It is noted that the Contractor obtained a valid Construction Noise Permit (CNP no. GW-RS1064-16) permitting the use of certain powered mechanical equipment (PME) during restricted hours between 1 November 2016 and 30 April 2017.
2. On 27 March 2017, no marine-based transportation was conducted under Contract No. HY/2013/04.
Based on the investigation findings above, the complaint is considered invalid under HY/2013/04.
Although the complaint is considered invalid with respect to HY/2013/04, the Contractor is reminded to observe all conditions stated in the relevant valid CNPs and implement all necessary noise and water quality mitigation measures identified in the EM&A Manual.
Notifications of Summons and Successful Prosecutions
Statistics on notifications of summons and successful prosecutions are summarized in Appendix I.
According to the environmental site inspections undertaken during the reporting period, the following recommendations were provided:
● The Contractor was reminded to provide suitable bunding for chemical containers to contain any potential chemical spill.
● The Contractor was reminded to remove loose used plastic bottles, chemical containers and loose general refuse from the works area and place them in the designated bins.
● The Contractor was reminded that NRMM label affixed to construction plant should display the correct colour.
● The Contractor was reminded to provide suitable drip trays for oil drums.
● The Contractor was reminded to provide water spray for a dry haul road.
● The Contractor was reminded to clear the stagnant water in a drip tray.
● The Contractor was reminded to display the relevant NRMM label on a generator as required under the relevant regulation.
● The Contractor was reminded to ensure that a chemical container is placed in a properly bunded area.
● The Contractor was reminded to sort the general and construction waste and dispose/recycle as appropriate.
● The Contractor was reminded to improve site housekeeping.
A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E. Most of the necessary mitigation measures were implemented properly.
With implementation of the recommended environmental mitigation measures, the contract’s environmental impacts were considered environmentally acceptable. The weekly environmental site inspections ensured that all the environmental mitigation measures recommended were effectively implemented.
The recommended environmental mitigation measures, as included in the EM&A programme, effectively minimize the potential environmental impacts from the contract. Also, the EM&A programme effectively monitored the environmental impacts from the construction activities and ensure the proper implementation of mitigation measures. No particular recommendation was advised for the improvement of the programme.
Commencement of the Contract took place on 13 March 2015 and the construction works of the Contract commenced on 13 July 2015. This is the 7th Quarterly EM&A Report summarising the findings of EM&A activities conducted under the Contract from 1 January 2017 to 31 March 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 Reports (for January, February and March 2017) 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 inspection was carried out on 3, 10, 17 and 23 January, 3, 7, 15, 20 and 28 February and 7, 14, 20 and 28 March 2017. Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site inspections.
There was one complaint received in relation to the environmental impact during the reporting period. After investigation, it was found that the complaint was not related to the Contract.
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. Implementation Schedule for Environmental Mitigation Measures (EMIS)
Appendix F. Site Audit Findings and Corrective Actions
Appendix G. Waste Flow Table
Appendix H. Environmental Licenses and Permits
Appendix I. Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions