1.1.1
CRBC-Kaden Joint Venture (hereafter
“CRBC-Kaden JV”) is commissioned by the Highways Department (HyD) as the Main Contractor of the Contract No. HY/2013/12 – Northern Connection Toll Plaza and
Tunnel Section ((hereafter “the Contract”) and this Contract is part of the Tuen Mun – Chek
Lap Kok Link (TM-CLK Link Project). TM-CLK Link Project is a Designated
Project under the latest Environmental Permit number VEP-354/2009D issued on 13 March 2015. The layout
Plan of the Project and the Contract are showed in Appendix A and Appendix B respectively.
1.1.2
The works of the
Contract mainly include:-
a.
construction of an approximately 5.4 hectares
toll plaza and an associated footbridge;
b.
construction of associated carriageways
including approximately 0.74 kilometre land viaducts,
and an approximately 230 metres vehicular underpass
to connect the toll plaza and the roundabout at Lung Mun Road/Lung Fu Road;
c.
site formation for the construction of the
toll plaza, including associated slope works and natural terrain hazard
mitigation measures;
d.
modification and realignment of the existing
Lung Mun Road and Lung Fu Road; and
e.
associated
waterworks, drainage, sewerage and landscaping works, etc..
1.1.3
AECOM Asia Company Limited as the Resident
Engineer (RE) and Ramboll Environ Hong Kong Limited as the
Independent Environmental Checker (IEC) and Environmental Project Office (ENPO)
were employed by the HyD. For implementation of the environmental
monitoring and audit (EM&A) programme under the Contract, CRBC-Kaden JV has
appointed Action-United Environmental Services & Consulting (AUES) as the
Environmental Team (ET) to responsible relevant environmental monitoring work.
1.1.4
Construction phase of the Contract was commenced on 23
October 2014. This is the
Secomd (2nd)
Annual EM&A Review Report to summarize the
monitoring results and inspection findings with the Contractor performance from 1 November 2015 to 31 October 2016 (hereinafter “Reporting
Period”) for the past twelve months.
1.2.1
The Annual Environmental Monitoring and Audit
(EM&A) Review Report is structured into the following sections:-
Section 1 Introduction
Section 2 Contract
Organization and Construction Progress and Environmental Submissions
Section 3 Summary
of Impact Monitoring Requirements under the Contract
Section 4 Air
Quality Monitoring
Section 5 Ecology
Monitoring
Section 6 Cultural
Heritage
Section 7 Landscape
and Visual
Section 8 Landfill
gas hazard Monitoring
Section 9 Waste
Management
Section 10 Inspection and Auditing
Section 11 Environmental Complaint and Non-Compliance
Section 12 Implementation
Status of Mitigation Measures
Section 13 Conclusions
and Recommendations
2.1.1
The Contract organization and contact details
of key personnel are shown in Appendix C.
2.2.1
In the Reporting Period, the major
construction activity conducted under the Contract is summarized in below. Moreover, the master construction program
of the Contract is enclosed in Appendix D.
Ÿ
Instrumentation and Monitoring
Ÿ
Site Formation – Retaining Structure for
RW_A, Slope TP_F, TP_G, TP_A and Associated Works, TP_B and Associated Works,
TP_C and Associated Works, TP_D and Associated Works, TP_E and Associated Works
and Slope Upgrading Works
Ÿ
Site Formation – Earthwork on Slope D and E;
surface drainage on slope C, D & E and Portion H
Ÿ
Toll Plaza Decking TD1, TD2
Ÿ
Toll Plaza Footbridge
Ÿ
Retaining Structure RW_B, RW_F, RW_F and
Slope TP_F”
Ÿ
Bridge G1, G2,Bridge H1
Ÿ
Toll Collector Subway & Associated Works
– Section 1
Ÿ
Sewer Culvert 1 (TBM) – Stage 4, Culvert 2
& Culvert 3
Ÿ
Natural Terrain Hazard Mitigation Measures
Ÿ
Vehicular Underpass TN-01
Ÿ
Blasting and Excavation of Underpass from
East Portal
Ÿ
Road and Drainage Works for Lung Fu Road
Roundabout
Ÿ
Sewer Culvert at FC1 and FC2, and the
existing Box Culvert
Ÿ
Road and Drainage Works at Butterfly Bay,
+11mPD, +19mPD and Portion H
Ÿ
Construction of Bored pile at central median
Ÿ
Box-culvert construction near MH2
Ÿ
Sewer culvert by hand shield method at FC1,
FC2, MH6, MH3 and MH7
Ÿ
Cascade A construction
Ÿ
Portal beam formwork erection at Lung Mun Road Central medium
Ÿ
Concreting for portal beam at Lung Mun Road Central medium
Ÿ
Precast Beam installation at Lung Mun Road
Ÿ
Precast Panel Installation at RW_B & TD 1
Ÿ
Fabrication of form traveler at fire station
Ÿ
Assembly of Form Traveller
at Bridge H1E and load test.
Ÿ
Stitching of TD1 decking
Ÿ
Waterproofing and lining at Vehicular
Underpass
Ÿ
Construction of Retaining Wall A and B
Ÿ
Blast door installation at West Portal
2.3
Summary of Environmental Submissions
2.3.1
In according to the EP, the required
documents have submitted to EPD for retention which listed in below:
Ÿ
Monitoring Plan on construction dust
(submission refer to Contract HY/2012/08)
Ÿ
Landscape and Visual Plan (not yet endorsed by EPD)
Ÿ
Waste Management Plan (endorsed by the EPD on 16 March 2015)
Ÿ
Baseline Monitoring Report (not yet endorsed
by EPD)
2.3.2
Summary of
the relevant permits, licenses, and/or notifications on environmental
protection as obtained by the Contract in the past twelve months is presented
in Table 2-1.
Table 2-1 Status of Environmental
Licenses and Permits of the Contract
|
No.
|
Type of Permit/
License
|
Submission Date
|
Reference/
License No.
|
Date of Issue
|
Date of Expiry
|
|
1
|
Air pollution Control (Construction Dust)
Regulation
|
06-08-2014
|
377719
|
06-08-2014
|
N/A
|
|
2
|
Chemical Waste Producer Registration -
Waste Producers Number
|
06-08-2014
|
5117422C389301
|
03-09-2014
|
N/A
|
|
3
|
Water Pollution Control Ordinance -
Discharge License
|
13-08-2014
|
WT00020065-2014
|
29-09-2014
|
30-09-2019
|
|
4
|
Variation of Effluent Discharge License
|
22-08-15
|
WT00023973-2016
|
14-03-16
|
30-09-2019
|
|
5
|
Waste Disposal Regulation - Billing Account
for Disposal of Construction Waste
|
21-07-2014
|
7020460
|
01-08-2014
|
N/A
|
|
6
|
Permission to
Transplant Pitcher Plant
|
15-6-2015
|
(30) in AF CON 11/13 pt.4
|
23-6-2015
|
22-12-2015
|
|
7
|
CNP for Multiple Task
|
24-04-2015
|
GW-RW0225-15
|
13-05-2015
|
04-11-2015
|
|
7-10-2015
|
GW-RW0520-15
|
05-11-2015
|
04-05-2016
|
|
21-04-2016
|
GW-RW0520-16
|
05-05-2016
|
04-11-2016
|
|
8
|
CNP for MH5
|
05-05-2015
|
GW-RW0226-15
|
18-05-2015
|
17-11-2015
|
|
23-10-2015
|
GW-RW0563-15
|
18-11-2015
|
17-05-2016
|
|
25-04-2016
|
GW-RW0563-16
|
18-05-2016
|
17-11-2016
|
|
9
|
CNP for Tunnel
|
13-11-2015
|
GW-RW0582-15
|
23-11-2015
|
22-05-2016
|
|
25-04-2016
|
GW-RW0582-16
|
23-05-2016
|
22-11-2016
|
|
10
|
CNP for falsework
erection
|
01-02-2016
|
GW-RW0076-16
|
15-02-2016
|
21-04-2016
|
|
07-04-2016
|
GW-RW0215-16
|
26-04-2016
|
21-06-2016
|
|
18-05-2016
|
GW-RW0289-16
|
22-06-2016
|
19-08-2016
|
|
27-07-2016
|
GW-RW0472-16
|
22-08-2016
|
21-12-2016
|
Note:
CNP is Control Noise Permit
3.1.1
In view of the
construction works under the Contract, the major construction activities are
land-based. In accordance with the
Project EM&A Manual requirements, environmental aspect monitoring should be
conducted including air quality, ecological (Pitcher plant), cultural heritage
and site inspections during construction period. In addition, landscape
and visual (L&V) monitoring, landfill gas monitoring and audit of the
contractor’s implementation of the construction noise and land-based water
quality pollution control measures are also required for the Contract.
3.1.2
A summary of construction phase EM&A
requirements are presented in the
sub-sections below.
3.2.1
The construction phase air quality monitoring
shall cover the following parameters:
•
1-hour TSP; and
•
24-hour TSP
3.3.1
The air quality monitoring stations for impact monitoring are listed in Table 3.1 and illustrated in Appendix
E.
Table 3-1 Designated
Air Quality Monitoring Stations under the Contract
|
ID
|
Location
|
Air monitoring station Description
|
|
ASR1
|
Tuen Mun Fireboat Station
|
EM&A Manual
|
|
ASR5
|
Pillar Point Fire Station
|
EM&A Manual
|
|
AQMS1
|
Previous River Trade Golf
|
Enhanced TSP Level under EP
condition 2.4
|
|
ASR6
|
Butterfly Beach Laundry
|
Enhanced TSP Level under EP
condition 2.4
|
|
ASR10
|
Butterfly Beach Park
|
Enhanced TSP Level under EP
condition 2.4
|
General Requirement
3.4.1
For regular impact monitoring, the sampling frequency of at least once
in every six days shall be strictly observed at five of the designated
monitoring stations for 24-hr TSP monitoring. For 1-hr TSP monitoring, the sampling
frequency of at least three times in every six days should be undertaken at
five locations when the highest dust impact occurs. The stations to be monitored should be
selected based on the prevailing wind direction and their proximity to the
active construction works.
Special Requirement
3.4.2
As per Condition 2.4 of
the EP of TM-CLKL, an enhanced monitoring plan on TSP level at Tuen Mun (“the
Enhanced TSP Monitoring Plan”) is required to be submitted to the DEP for
approval at least 1 month before the commencement of construction of the Project.
Details of the Enhanced TSP
Monitoring Plan under Contract No. HY/2012/08 could be found from the project
website. The
air quality monitoring work under this Contract will follow the monitoring
requirement of enhanced TSP monitoring under the project.
3.4.3
The air quality
monitoring requirements for the Contract is shown in Table 3-2.
Table
3-2 Enhanced TSP Monitoring Plan –
Construction Phase
|
Condition
|
Monitoring
Parameter
|
Monitoring
Location
|
Frequency
|
Monitoring Requirement
|
|
General
|
1-hour TSP
|
ASR1, ASR5, AQMS1, ASR6, ASR10
|
3 times per day every six days
|
Throughout the Northern Connection, toll plaza and tunnel buildings
construction works
|
|
24-hour TSP
|
ASR1, ASR5, AQMS1, ASR6, ASR10
|
Daily every six days
|
|
Special
|
1-hour TSP
|
ASR1, ASR5, AQMS1, ASR6, ASR10
|
3 times per day every three days
|
Northern Connection
During excavation works for launching shaft, excavation work for Cut and
Cover Tunnel and Cut and Cover Tunnel Construction
Toll Plaza
During excavation, slope works, construction of road and superstructures
and wind erosion from open sites and stockpiling areas
Tunnel Buildings
During excavation, foundation works, construction of superstructures and
wind erosion from open sites and stockpiling areas
|
|
24-hour TSP
|
ASR1, ASR5, AQMS1, ASR6, ASR10
|
Daily every three days
|
3.5.1
The baseline monitoring
results formed the basis for determining the air quality criteria for the
impact monitoring. The ET shall compare the impact monitoring results with air
quality criteria set up for 24-hour TSP and 1-hour TSP. Based on results of the approved
Baseline Monitoring Report of HyD Contract
HY/2012/08, the proposed Action and Limit Levels are shown in Tables
3-3.
Table
3-3 TSP
Action and Limit Levels for Impact Air Quality Monitoring
|
Air Quality Monitoring Stations
|
24-hour TSP (μg/m3)
|
1-hour TSP (μg/m3)
|
|
Action Level
|
Limit Level
|
Action Level
|
Limit Level
|
|
ASR1
|
213
|
260
|
331
|
500
|
|
ASR5
|
238
|
260
|
340
|
500
|
|
AQMS1
|
213
|
260
|
335
|
500
|
|
ASR6
|
238
|
260
|
338
|
500
|
|
ASR10
|
214
|
260
|
337
|
500
|
3.5.2
Should non-compliance of the environmental
quality criteria occurs, remedial actions will be triggered according to the
Event and Action Plan which presented in Appendix F.
Noise
3.6.1
The TM-CLKL EIA study
concluded that no existing noise sensitive receiver (NSR) was identified within
the Study Area at Tuen Mun.
Therefore, no planned NSR designated at the Project sites of Tuen Mun. Based upon this, no noise monitoring is
necessary for construction phase under the Contract.
3.6.2
Regular site inspections
and audits will be carried out during the construction phase in order to
confirm compliance with the regulatory requirements and conformity of the
Contractor with regard to noise control and contract conditions.
Water Quality
3.6.3
No marine works will be
undertaken under the Contract.
Based upon this, no water quality monitoring is necessary for
construction phase.
Ecology
3.6.4
Since the Works of the Contract
would not be to generate the marine ecological impact, no dolphin monitoring
under the Contract to conduct.
3.6.5
During construction phase, the ET will
perform Pitcher Plants inspection at least once every week to report the growth
condition (only undertaken at Establish
period) and protection measures.
Landscape and Visual
3.6.6
According to EIA recommendation,
site inspection and audit
shall be required to be undertaken in the operation stage. Measures
to mitigate landscape
and visual impacts during construction should be checked and monitored by a
Registered Landscape Architect to ensure compliance with the intended aims of
the mitigation measures in accordance with the EM&A
Manual.
Cultural Heritage
3.6.7
Grave G1 of heritage resources is situated near the proposed
toll plaza in Tuen Mun. Site inspections should be
undertaken at least once per week throughout the construction period to ensure
compliance with the intended aims of recommended mitigation measures.
Monitoring and
Measurement of Landfill Gas
3.6.8
During EIA study,
landfill gas hazards are likely to be generated from the Pillar Point Valley (PPV)
Landfill. Hence, regular landfill gas monitoring is recommended during
construction of the proposed toll plaza. Safety Officer or an approved and
appropriated qualified person should be carried out the monitoring works to
make sure the area free of landfill gas before any man enters in the area.
3.6.9
Depending on the results of the measurements, actions
required will vary and should be set down by the Safety Officer or other appropriately
qualified person. As a minimum these should encompass those actions specified
as follow:
Table 3-4 Actions in the Event of Landfill Gas
being Detected in Excavation / Confined Area
|
Parameter
|
Measurement
|
Action
|
|
Oxygen
|
<
19%
|
-
Ventilate to restore oxygen to > 19%
|
|
<
18%
|
- Stop work
- Evacuate personnel /
prohibit entry
-
Increase ventilation to restore to > 19%
|
|
Methane
|
> 10% LEL (> 0.5%
v/v)
|
- Prohibit hot work
- Ventilate to restore
methane to < 10% LEL
|
|
> 20% LEL (>1%
v/v)
|
- Stop work
- Evacuate personnel /
prohibit entry
-
Increase ventilation to restore to < 10%
|
|
Carbon Dioxide
|
>
0.5%
|
-
Ventilate to restore oxygen to < 0.5%
|
|
>
1.5%
|
- Stop work
- Evacuate personnel /
prohibit entry
-
Increase ventilation to restore to < 0.5%
|
4.1.1
According
to the Updated EM&A Manual and the Enhanced Total Suspended Particulates
(TSP) Monitoring Plan, the air quality impact monitoring was conducted at the
five air quality monitoring stations during the Reporting Period by the ET of
Contract HY/2012/08. Sharing of impact air quality monitoring
data between HY/2012/08 and HY/2013/12 is agreed by all relevant parties. Therefore the Contract is not required
to conduct its own dust monitoring exercise until the Contract HY/2012/08 is
ended.
4.2.1
In the Reporting Period, total 1,800 of 1-hr TSP measurements and 600 events of 24-hours TSP monitoring at five proposed locations
were carried out by the ET of Contract HY/2012/08. Detailed air quality monitoring results
and statistical analysis of the trends of air quality data during the Reporting
Period can be referred to the Monthly EM&A Reports (from November 2015 to
October 2016) and the Third Annual EM&A Review Report (November 2015 to
October 2016) prepared by the ET of Contract HY/2012/08.
4.3.1
According to the air quality monitoring
result provided by Contract HY/2012/08, no exceedances in 1-hour and 24-hour TSP
were recorded in the Reporting Period.
No Notification on Exceedances (NOEs) was issued by the ET of Contract
HY/2012/08. The summary of air
quality exceedance is shown in Table 4-1.
Table 4-1 Summary
of Air Quality Monitoring Exceedance
|
Date of Exceedance
|
Monitoring Station
|
Air Quality
Parameter
|
Result
|
Exceed
|
|
NA
|
NA
|
NA
|
--
|
--
|
4.4.1
No investigation for exceedance is required
for the Reporting Period.
5.1.1
According to the EM&A Manual
requirements, regularly inspection for Pitcher Plants at least once every week to report it growth and protection
measure situation shall be conducted
during construction period.
5.1.2
Total 181 pitcher plants
were transplanted to final receptor site and the rest of the Pitcher Plant
individuals (certified dead by the specialist) were not transplanted and were
treated as general refuse. All the transplantation of pitcher plant from the
nursery site to final receptor site was completed on 10th September 2015.
5.2.1
A total 52 occasions of inspection were carried
out by the Contractor and ET in the past twelve months.
5.2.2
During each inspection,
the transplanted pitcher plant was performed random checking at the final
receptor area. It was observed that
the transplanted pitcher plants were properly protected and the growth was
normally in fair condition except three individuals which appeared poor
condition in May 2016 were certified dead by the specialist. It is considered that the Pitcher Plant
were establishing after transplanting shock and adapting to the condition of
the Final Receptor Site and frequent watering is recommended. Besides, no
construction activities were observed to be carried out at the surrounding of
the final receptor area. The
condition of chain link fence is good and no repair or maintenance is required.
5.2.3
Establish period for the pitcher plants was completed at
the end of September 2016, therefore the join site completion of establish
period visit with AFCD was undertaken on 23 September 2016 and the advance copy
of final pitcher report was submitted to AFCD on 11 November 2016. Therefore
after 23 September 2016, only the integrity of the protection fence was checked
to fulfil the EIA requirement.
5.2.4
No matters the completion of establish period, the
Contractor should properly maintain the fencing along the receptor area to
avoid disturbance to the pitcher plants under the EIA requirement.
6.1.1
According to the EM&A Manual
requirements, regular inspection for heritage resource Grave G1 shall be
audited by the ET at least once every week to ensure recommended mitigation
measures implemented during construction period. The aim of the survey is prevention of
any possible damage to the grave and to ensure that proposed mitigation
measures are implemented. The broad scope of the audit will involve supervision
of the following:
Ÿ
Non-contact effects of
the engineering works, such as vibration from pneumatic drills which could cause
damage, such as foundation or wall cracks and loosening of tiles or fixtures;
and
Ÿ
Contact between the historic
structures and equipment and materials associated with the engineering works.
6.1.2
Specifically, the
monitoring programme will entail the following tasks:
Ÿ
The extent of the agreed
works areas should be regularly checked during the construction phase to ensure
the buffer is being maintained; and
Ÿ
Ensure no stockpiling or
equipment storage is affecting the structure.
6.1.3
In the event of non-compliance
the responsibilities of the relevant parties is detailed in the Event/ Action Plan
in Appendix F.
6.2.1
In this Reporting Period, there are total 52 occasions to carry out the Grave
G1 inspection. During site
inspection, buffer zone was observed between the working area
and the Grave and no construction material or equipment was stored nearby the
Grave.
6.2.2
Mitigation measures had
been fully implemented by the Contractor in accordance with the requirements of
the EM&A Manual.
7.1.1
According to EM&A
Manual requirements, monitoring of Contractor’s operations during construction
period to report on Contractor’s compliance should be carried out on weekly
basis. Measure to mitigate landscape and
visual impact during construction should be checked and monitored by a
Registered Landscape Architect to ensure compliance with the intended aims of
the mitigation measures. Moreover, the progress
of the engineering works shall be regularly reviewed on site to identify the
earliest practical opportunities for the landscape works to be undertaken.
7.2.1
In this Reporting Period, Registered Landscape
Architect with the Contractor had undertaken a total of 52 occasions of inspection.
7.2.2
In the past twelve months, most of the
landscape work such as planting was not yet commenced, existing tree on
boundary of the project area was properly protected and no damage of the
existing tree was record in this reporting period. Felled tree under
construction was collected by license collected for recycling.
The detailed inspection checklists can be referred to relevant Monthly EM&A
Reports of the Contract.
8.1.1
During EIA study,
landfill gas hazards are likely to be generated
from the Pillar Point Valley (PPV) Landfill. Hence, regular landfill
gas monitoring is recommended during construction of the proposed toll plaza.
8.1.2
During construction, a
Safety Officer should be appointed to carry out the monitoring works. The monitoring
frequency and areas to be monitored should be set down prior to commencement of
ground-works either by the Safety Officer or an approved and appropriated
qualified person. The routine monitoring should be carried out in all excavations,
manholes, chambers, relocation of monitoring wells and any other confined
spaces that may have been created. All measurements in excavations should be
made with the extended monitoring tube located not more than 10 mm from the exposed
ground surface. Monitoring should be performed properly to make sure that the
area is free of landfill gas before any man enters in the area.
8.1.3
For excavations deeper
than 1m, measurements should be carried out:
Ÿ
at the ground surface
before excavation commences;
Ÿ
immediately before any
worker enters the excavation;
Ÿ
at the beginning of each
working day for the entire period the excavation remains open; and
Ÿ
periodically through the working day
whilst workers are in the excavation.
8.1.4
For excavations between
300mm and 1m deep, measurements should be carried out:
Ÿ
directly after the
excavation has been completed; and
Ÿ
periodically whilst the
excavation remains open
8.1.5
For excavations less
than 300mm deep, monitoring may be omitted, at the discretion of the Safety
Officer or other appropriately qualified person.
8.1.6
To ensure the accuracy
of the monitoring data, zeroing of the gas analyser
shall be undertaken at the start of each day’s monitoring. As part of the QA/QC, calibration of the
gas analyser shall be conducted at least once every
two weeks according to the specification of the manufacturer’s operation
manual.
8.1.7
The landfill
consultation zone was divided into 6 monitoring zones. The landfill gas
monitoring zones are summarized in Table 8-1 and the layout plan for the
monitoring zone is illustrated in Appendix E.
Table
8-1 Landfill
Gas Monitoring Zone
|
ID
|
Location
|
|
TD1
|
TD1, Retaining Wall A and Subway
|
|
RW-B
|
Retaining Wall B
|
|
RW-F
|
Retaining Wall F
|
|
S&U
|
Slope and Underpass
|
|
BW
|
Bridge Works
|
|
LMR
|
Lung Mun
Road
|
8.2.1
In the past twelve months, landfill gas
monitoring was conducted at monitoring zone RW-B & RW-F between November
2015 and September 2016. For October 2016 landfill gas monitoring was conducted
at the zone TD1
and LMR due to the
excavated area have been backfilled at the end of September 2016 for zone RW-B
& RW-F. A BIOGAS 5000 gas analyser was used for
the landfill gas monitoring.
8.2.2
There were total 295 monitoring days carried out by the Safety Officer or an approved and qualified
persons. Landfill gas measurement results in the
past twelve months are summarized in Table 8-2 & 8-3. Moreover, graphical plot are attached in
Appendix G.
Table 8-2 Summary of Landfill
Gas Measurement Results in this Annual for RW-B & RW-F
|
Para.
|
Action Level
|
Limit Level
|
In
Period
|
Detectable
at Retaining Wall B
|
Detectable at Retaining
Wall F
|
|
Min
|
Max
|
Min
|
Max
|
|
Methane
|
>10% LEL (>0.5% v/v)
|
>20% LEL (>1% v/v)
|
Nov 2015
to Jan 2016
|
0%
|
0.1%
|
0%
|
0.1%
|
|
Feb 2016
to Apr 2016
|
0%
|
0.2%
|
0%
|
0.1%
|
|
May 2016
to Jul 2016
|
0%
|
0.1%
|
0%
|
0.1%
|
|
Aug 2016
to Sep 2016
|
0.0%
|
0.2%
|
0.0%
|
0.2%
|
|
Oxygen
|
<19%
|
<18%
|
Nov 2015
to Jan 2016
|
21.0%
|
21.2%
|
21.0%
|
21.2%
|
|
Feb 2016
to Apr 2016
|
21.0%
|
21.1%
|
21.0%
|
21.1%
|
|
May 2016
to Jul 2016
|
21.0%
|
21.2%
|
21.0%
|
21.1%
|
|
Aug 2016
to Sep 2016
|
21.0%
|
21.1%
|
21.0%
|
21.1%
|
|
Carbon Dioxide
|
>0.5%
|
>1.5%
|
Nov 2015
to Jan 2016
|
0%
|
0.2%
|
0%
|
0.2%
|
|
Feb 2016
to Apr 2016
|
0.1%
|
0.2%
|
0.1%
|
0.2%
|
|
May 2016
to Jul 2016
|
0.1%
|
0.2%
|
0.1%
|
0.2%
|
|
Aug 2016
to Sep 2016
|
0.1%
|
0.2%
|
0.1%
|
0.2%
|
Table 8-3 Summary
of Landfill Gas Measurement Results in this Annual for TD1 & LMR
|
Para.
|
Action Level
|
Limit Level
|
In
Period
|
Detectable
at Retaining Wall B
|
Detectable at Retaining
Wall F
|
|
Min
|
Max
|
Min
|
Max
|
|
Methane
|
>10% LEL (>0.5% v/v)
|
>20% LEL (>1% v/v)
|
Oct 2016
|
0.1%
|
0.1%
|
0.1%
|
0.1%
|
|
Oxygen
|
<19%
|
<18%
|
Oct 2016
|
21.0%
|
21.1%
|
21.0%
|
21.1%
|
|
Carbon Dioxide
|
>0.5%
|
>1.5%
|
Oct 2016
|
0.1%
|
0.2%
|
0.1%
|
0.2%
|
8.2.3
The measurement results shown that slightly
methane concentration was detected and all oxygen concentration was measured
between 21.0% and 21.2% and Carbon Dioxide was between 0 and 0.2 %. No corrective action was required
accordingly.
9.1.1
Waste management was carried out by an on-site
Environmental Officer or an Environmental Supervisor from time to time. The
effective management of waste arisings during the
construction phase will be monitored through the site audit programme. The aims
of the waste audit are:
l to ensure
the waste arising from the works are handled, stored, collected, transferred
and disposed of in an environmentally acceptable manner; and
l to encourage the reuse and recycling of material.
9.1.2
In addition to the site inspections, the ET
shall review the documentation procedures prepared by the Waste Coordinator
once a week to ensure proper records are being maintained and procedures
undertaken in accordance with the Waste Management Plan.
9.2.1
All types of waste arising from the
construction work are classified into the following:
l Construction
& Demolition (C&D) Material;
l Chemical
Waste;
l General
Refuse; and
l Excavated
Soil.
9.2.2
In the past twelve months, total quantities
of waste disposal are summarized in Tables 9-1 and 9-2.
Table 9-1 Summary of Quantities
of Inert C&D Materials
|
Type of Waste
|
Quantity
|
Total
|
Disposal
Location
|
|
Nov 2015 – Jan 2016
|
Feb 2016 – Apr 2016
|
May 2016 – Jul 2016
|
Aug 2016 – Oct 2016
|
|
Reused in this
Contract (Inert) (`000m3)
|
35.186
|
39.413
|
31.747
|
15.353
|
121.699
|
-
|
|
Reused in other Projects (Inert) (`000m3)
|
73.010
|
17.086
|
8.727
|
26.678
|
125.501
|
• TM-CLKL
C2 HY/2012/08
• Lam Tei
Quarry
• Eco Park K.wah Recycle Facilities
• Lung Kwu
Tan Tailor Recycled Aggregates
• Laintang BCP
|
|
Disposal as Public
Fill (Inert) (`000m3)
|
3.989
|
1.603
|
1.539
|
0.487
|
7.618
|
Tuen Mum Area 38
|
Table 9-2 Summary
of Quantities of C&D Wastes
|
Type of Waste
|
Quantity
|
Total
|
Disposal
Location
|
|
Nov 2015 – Jan 2016
|
Feb 2016 – Apr 2016
|
May 2016 – Jul 2016
|
Aug 2016 – Oct 2016
|
|
|
0
|
0
|
0
|
0
|
0
|
-
|
|
Recycled Paper
/ Cardboard Packing (`000kg)
|
0.07
|
0
|
0
|
0
|
0.07
|
Recycle Collector
|
|
Recycled
Plastic (`000kg)
|
0
|
0
|
0
|
0
|
0
|
-
|
|
Chemical
Wastes (`000kg)
|
0
|
0
|
0
|
0
|
0
|
-
|
|
General
Refuses (`000m3)
|
0.257
|
0.309
|
0.283
|
0.401
|
1.250
|
WENT
|
9.2.3
Whenever possible, materials were reused on-site
as far as practicable.
10.1.1
According to the approved EM&A Manual,
the environmental site inspection shall be formulation by ET Leader. Weekly environmental site inspections
should carry out to confirm the environmental performance.
Findings / Deficiencies During
Reporting Period
10.1.2
In the past twelve months, total 52 events of joint site inspection to evaluate site environmental
performance has been carried out by the RE, ET and the Contractor. Moreover, IEC or ENPO
attended total 12 occasion’s joint site inspection. The quantity of reminders/observations is summarized in Table 10-1.
Table
10-1 Summary
of Reminders/Observations of Site Inspection for the Annual
|
Reporting Period
|
Date of site inspection
|
Nos. of findings / reminders
|
Follow-Up Status
|
|
November 2015
|
3rd, 10th,
17th and 24th November 2015
|
9
|
Completed
|
|
December 2015
|
1st, 8th,
15th, 22nd and 29th December 2015.
|
14
|
Completed
|
|
January 2016
|
5th, 12th,
19th and 26th January 2016
|
8
|
Completed
|
|
February 2016
|
2nd, 12th,
16th and 23rd February 2016
|
5
|
Completed
|
|
March 2016
|
1st, 8th,
15th, 22nd and 29th March 2016.
|
12
|
Completed
|
|
April 2016
|
6th, 12th,
19th and 26th April 2016
|
3
|
Completed
|
|
May 2016
|
3rd, 10th,
17th, 24th and 31st May 2016
|
7
|
Completed
|
|
June 2016
|
8th, 15th,
21st and 28th June 2016
|
6
|
Completed
|
|
July 2016
|
6th, 12th,
20th and 26th July 2016
|
6
|
Completed
|
|
August 2016
|
3rd, 9th,
16th, 23rd and 30th August 2016
|
11
|
Completed
|
|
September 2016
|
6th, 13th,
21st and 27th September 2016
|
8
|
Completed
|
|
October 2016
|
4th, 12th,
18th and 25th October 2016
|
13
|
Completed
|
10.1.3
In the past twelve months, there are no non-compliance recorded, however, 102 observations/ reminders were recorded
during the site inspections. The minor deficiencies found in the weekly site
inspections were in general rectified within the specified deadlines. The environmental performance of the
Project was therefore considered satisfactory.
11.1.1
For the Contract, no summons and prosecution
was received in the Reporting Period. However, there are four environmental
complaints and no exceedances of action / limit levels recorded during the
Reporting Period. The statistical
summary table of environmental exceedance, complaint, summons and prosecution is
presented in Tables 11-1, 11-2, 11-3 and 11-4.
Table 11-1 Statistical Summary of
Environmental Exceedance
|
Reporting Period
|
Environmental
Aspect
|
Exceedance
Statistics
|
|
Action
|
Limit
|
|
1 November 2015 –
31 October 2016
|
Air Quality
|
1-hour TSP
|
0
|
0
|
|
24-hour TSP
|
0
|
0
|
|
Landfill Gas
|
Methane
|
0
|
0
|
|
Oxygen
|
0
|
0
|
|
Carbon Dioxide
|
0
|
0
|
Table 11-2 Statistical Summary of
Environmental Complaints
|
Reporting Period
|
Environmental
Complaint Statistics
|
|
Cumulative
|
Complaint Nature
|
|
Air
|
Noise
|
Water
|
|
1 November 2015 –
31 October 2016
|
4
|
Ÿ 28 April
2016
|
NA
|
Ÿ 9 May
2016
Ÿ 7 July
2016
Ÿ 3
October 2016
|
Table 11-3 Statistical Summary of
Environmental Summons
|
Reporting Period
|
Environmental
Summons Statistics
|
|
Cumulative
|
Complaint Nature
|
|
Air
|
Noise
|
Water
|
|
1 November 2015 –
31 October 2016
|
0
|
NA
|
NA
|
NA
|
Table 11-4 Statistical Summary of
Environmental Prosecution
|
Reporting Period
|
Environmental
Prosecution Statistics
|
|
Cumulative
|
Complaint Nature
|
|
Air
|
Noise
|
Water
|
|
1 November 2015 –
31 October 2016
|
0
|
NA
|
NA
|
NA
|
11.2.1
During the complaint investigation work, the
Contractor was co-operated with the ET in providing all the necessary
information and assistance for completion of the investigation. Investigation
reports for the complaints have completed by the ET and submitted to all
relevant parties and they are summarized in below.
Ÿ 28 April 2016 - A complaint was
received from the EPD on 28 April 2016.
The complainant complained that dust and smoke emission from a drilling
rig was observed on the slope near Pillar Point, Tuen
Mun. It
was suspected that the heavy dust was generated from the construction
activities under the Contractor.
Ÿ 9 May 2016 - A complaint was received
from the EPD on 9 May 2016. The
complainant complained that white color effluent discharging outfall behind
sawmill at Ho Yeung Street, Tuen Mun. It cannot confirm the source of the
white color effluent therefore it considered that the above complaint is not
related to the project.
Ÿ
7 June 2016 - A complaint was received from
the EPD on 7 June 2016. The
complainant complained that white color effluent discharging outfall at storm outfall of No.33 Ho Yeung Street, Tuen Mun at around 18:00 and this
is a follow up of the complaint EP/RW/0000368066 which received on 9 May 2016
and defecated as not project related complain. EPD visit the
upstream area and open the cover of manhole at Ho Fuk
Street on 21 June 2016. No water discharge was observed and the manhole was
clean and dry in condition. During the joint investigation and inspection by
EPD, Aecom and the Contractor, it was found that the
white water might came from other facilities or site located at Ho Yeung Street
which is not related to this project.
Ÿ 3 October
2016 - A complaint was received via EPD hotline on 3 October 2016, claimed that muddy water entering the
drainage system near site entrance-Hand-key attendance system Pillar Point, Tuen Mun at around 03:00 to 04:00 after the rainstorm. Refer to tele-conversation with EPD and
Contractor, the complaint was actually mentioning the muddy water entering the drainage system was
occurred on 1 October 2016 03:00 to 04:00 at the bus station nearby the site
entrance. According to the site record, the works carried out during the
concerned time period was maintenance works of TTA include maintenances of
flashlight, water barrier and road marking, there is no ponding water was
observed nearby the concerned locations. Also during the weekly site inspection
on 4 October 2016, no water discharged from site and ponding at the bus station
nearby the site entrance was observed. Earth bund was also provided at the
slope near the site entrance to divert the surface run-off to the de-silting
system. Moreover, the record from the Hong Kong Observatory also stated there
was no rainfall recorded at Tuen Mun
between 30 September 2016 and 1 October 2016 04:45 a.m. Therefore for the
above result, it is considered that the above complaint is not related to the project.
Inspection Checklist for Vulnerable to
Contaminated Water Discharge
11.2.2
Following to the complaint about discharge of
milky water to Bufferfuly Beach on 2 September 2015. The Contractor proposed to
carry out daily inspection of wastewater treatment facilities, concerned
discharge points, drainage inlets and outlets during typhoon or wet
season.
11.2.3
In addition, specific inspections would also
be conducted before and after adverse weather to ensure necessary remedial
works would be carried out timely. Should incidental contaminated water
discharge be found at the inlet of the associated drainage system, a specific
inspection of the relevant drainage pipes would be conducted for traces of
deposit, and follow up actions would be taken when necessary.
11.2.4
The daily inpsection for vulnerable to
contaminated water discharge was conducted by the Contractor between 1 to 30 November
2015 and 11 April to 31 October 2016 . As requested by
the EPD, the associated inspection checklist should be presented in the
respective Monthly EM&A Report.
12.1.1
The environmental mitigation measures that
recommended in the Environmental Mitigation Measures Implementation Schedule (EMMIS) in the
Project EM&A Manual covered the issues of Air Quality, Cultural Heritage, Ecology, Landfill Gas Hazard, Landscape & Visual,
Noise, Water and Waste and they are presented in Appendix I.
12.1.2
In the past twelve months, environmental
mitigation measures generally implemented by the Contract are listed in Table
12-1.
Table 12-1 Environmental Mitigation
Measures
|
Issues
|
Environmental Mitigation Measures
|
|
Air Quality
|
· Maintain damp / wet surface
on access road
· Keep slow speed in the sites
· All vehicles must use wheel
washing facility before off site
· Sprayed water during rock
breaking works
· During transportation by truck, materials loaded lower
than the side and tail boards, and covered before transport
· Compacted all soil stockpiles
· Part of the exposed slopes covered geotextile net
|
|
Cultural Heritage
|
· Set a buffer zone between the working area
and the Grave
· All construction materials and equipment store far from
the Grave
· Inspection the Grave to ensure provision mitigation
measures effective
|
|
Ecology
|
·
Wire fencing provided
for temporary protect Pitcher Plants
·
Undertake weekly
inspection of Pitcher Plants
|
|
Landfill Gas Hazard
|
·
Landfill Gas
measurement undertake during trench excavation
|
|
Water Quality
|
· Temporary drainage system
provide for surface runoff prevent discharge to public area
· Wastewater to be treated by
sedimentation tank before discharge.
|
|
Noise
|
· Restrain operation time of
plants from 07:00 to 19:00 on any working day except for Public Holiday and
Sunday.
· Keep good maintenance of
plants
· The noisy plants or works
provide mobile noise barriers
· Shut down the plants when
not in used
|
|
Waste and Chemical
Management
|
· On-site sorting prior to
disposal
· Follow requirements and
procedures of the “Trip-ticket System”
·
Predict required quantity of concrete accurately
· Collect the unused fresh concrete at designated
locations in the sites for subsequent disposal
|
|
General
|
· The site was generally kept
tidy and clean.
|
13.1.1
This is 2nd
Annual EM&A Review Report presenting the
monitoring results and inspection findings for the Reporting Period from 1 November 2015 to 31 October 2016.
13.1.2
No air quality monitoring including 1-hour
and 24-hour TSP exceedance was recorded in the Reporting Period.
13.1.3
In this Reporting Period, no noise complaint was received by RE, the Contractor, ENPO or HyD. No Action Level exceedances were triggered and no NOE or the associated corrective actions were therefore issued.
13.1.4
Site inspection for landscape and visual was
conducted on weekly basis by the Landscape Architect to ensure the compliance
of the intended aims of the mitigation measures. Most of the landscape works
such as planting was not yet commenced.
13.1.5
Landfill gas monitoring was conducted at RW-B
& RW-F between November 2015 and September 2016 and at the TD1 and Lung Mun Road works area on October
2016 by the Safety Officer. The
monitoring results shown no exceedances were triggered.
13.1.6
No notifications of
summons or successful prosecution were received during the Reporting
Period. However, three complaints
about the water quality issues and one complaint about the air quality issues were
received during the Reporting Period.
Investigations were conducted and the follow-up actions corresponding to
the mitigation measures recommended were undertaken by the Contractor to resolve
the environmental deficiencies
13.1.7
Joint site
inspection by the RE, ET and CRBC-Kaden JV was carried in accordance with the EM&A Manual. Moreover, the IEC
attended a total of 12 joint site
inspections during the Reporting Period. No
non-compliance was recorded during the site inspection but total 102 observations/reminders
were recorded in the past twelve months.
All the deficiencies were rectified
before next site inspection date.
13.1.8
A total 52 occasions of Pitcher Plant inspection
were carried out by the Contractor and ET in the past twelve months at the final receptor site. It was observed that the
transplanted pitcher plants were properly protected and the growth was normally
in fair condition except three individuals which appeared poor condition in May
2016 were certified dead by the specialist. It is considered that the Pitcher Plant were establishing after
transplanting shock and adapting to the condition of the Final Receptor Site
and establish period for the pitcher plants was completed at the end of
September 2016.
13.1.9
For cultural heritage in the past twelve months,
the buffer zone between the working area
and the Grave was observed and no construction material or equipment was stored
nearby.
13.2.1
The construction phase monitoring
programme ensured that any environmental impact to the receivers would be
readily detected and timely actions could be taken to rectify any
non-compliance. Assessment and
analysis of monitoring results collected demonstrated the environmental acceptability
of the Project. The regular site
inspection and waste audit ensured that all the mitigation measures on waste
management were effectively implemented.
13.2.2
The EM&A programme
effectively monitored the environmental impacts from the construction phase of
the Project and no particular recommendation was advised for the improvement of
the programme.
13.2.3
It is considered that
the environmental acceptability of the Contract in the past twelve months was satisfactory and acceptable.
