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AUES Job No.: TCS00715/14 |
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Tuen Mun - Chek Lap Kok Link Contract No. HY/2013/12 ¡V Northern Connection Toll Plaza and Associated Works |
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1st Annual Environmental
Monitoring and Audit (EM&A) Review Report ¡V November 2014 to October 2015 |
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Prepared
For CRBC
and Kaden Joint Venture |
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Date |
Reference No. |
Prepared By |
Certified By |
14 September 2016 |
TCS00715/14/600/R0163v5 |
Nicola Hon (Environmental Consultant) |
T.W. Tam (Environmental Team Leader) |
EXECUTIVE
SUMMARY
ES01
In August 2014, CRBC-Kaden Joint Venture (hereafter ¡§CRBC-Kaden JV¡¨)
has been awarded the Contract No. HY/2013/12 -Northern Connection Toll Plaza and Tunnel Section of the Tuen Mun ¡V Chek
Lap Kok Link
(hereinafter called ¡§the Contract¡¨) by the Highways Department (HyD). The
construction phase of the Contract was
commenced on 23 October 2014.
ES02
Before the Contract commencement, the baseline
air quality monitoring was carried out by the ET of HY/2012/08 from 16th to 31st October 2013. A set of Action and Limit Levels (A/L
Levels) of air quality performance criteria was proposed by ET of HY/2012/08 which has been verified by IEC and endorsed by EPD. The Action and Limit Levels of the air
quality adopted for the Contract is shown in Table
ES-01.
Table ES-01 Action and Limit Levels of
Air Quality Monitoring
Monitoring
Station |
24-hour TSP, (mg /m3) |
1-hour TSP, (mg/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 |
ES03
In September 2013, baseline
survey for Pitcher Plant has been conducted within the project area by a
suitably qualified ecologist. In
mid-September 2014, Contract HY/2013/12 has also conducted a one-off survey to
confirm the number of existing Pitcher Plant. For cultural heritage, a condition survey
for the grave was conducted on 23 September 2014. The Baseline Monitoring
Report for the Contract was submitted on 7 October 2014 for IEC¡¦s verification
and
25 November 2014 for EPD¡¦s endorsement.
ES04
This is the 1st Annual EM&A Review Report for the ¡§Tuen Mun - Chek Lap Kok Link - Northern
Connection Toll Plaza and Associated Works¡¨ under Environmental Permit No. EP-354/2009/D (hereinafter ¡¥¡¥the EP¡¦¡¦), covering the period from 23 October 2014 to 31 October 2015 (hereinafter ¡§Reporting Period¡¨).
Summary of EM&A activities for the Reporting Period
ES05
In the Reporting Period,
the EM&A activities is summarized in Table ES-02.
Table ES-02 Summary EM&A Activities
Undertaken in the Reporting Period
Environmental
Aspect |
Environmental
Monitoring Parameters / Inspection |
Sub-total Occasions |
Total |
|||
1st
Quarter |
2nd
Quarter |
3rd
Quarter |
4th
Quarter |
|||
Air Quality |
1-hour TSP |
480 |
390 |
465 |
450 |
1785 |
24-hour TSP |
155 |
130 |
155 |
150 |
590 |
|
Cultural heritage inspection |
Grave G1 |
14 |
13 |
13 |
13 |
53 |
Landfill Gas
Monitoring |
Oxygen; Methane & Carbon Dioxide |
83 days |
68 days |
75 days |
75 days |
301 days |
Landscape
&Visual |
Landscape
& Visual Monitoring |
14 |
13 |
13 |
13 |
53 |
Joint Site
Inspection / Audit |
IEC, ET, the Contractor and RE joint site Environmental Inspection and Auditing |
14 |
13 |
13 |
13 |
53 |
Breach
of Action and Limit (A/L) Levels
ES06
In according with the air quality measurement
results by the ET of Contract HY/2012/08 in the Reporting Period, no
exceedances in 24-hour TSP were recorded but a total of four (4) exceedances of
1-hour TSP respectively were detected on 14 November 2014 (two exceedance), 2 December 2014 (one exceedance) and 17 December 2014 (one exceedance).
ES07
For landfill gas
monitoring, the concentration of all parameters were detected within the
acceptable levels. Moreover, no noise
complaint was received in the Reporting Period. Table ES-03 is summarized breach of
environmental performance criteria.
Table ES-03 Action
and Limit (A/L) Levels Breach Summarized in the Reporting Period
Environmental Aspect |
Monitoring Parameters |
Action Level |
Limit Level |
Event & Action |
||
NOE Issued |
Investigation |
Corrective Actions |
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Air
Quality |
1-hour
TSP |
4 |
0 |
3 |
Not
related the Contract |
Not
require |
24-hour
TSP |
0 |
0 |
0 |
0 |
0 |
|
Landfill
Gas Monitoring |
Oxygen |
0 |
0 |
0 |
0 |
0 |
Methane |
0 |
0 |
0 |
0 |
0 |
|
Carbon
Dioxide |
0 |
0 |
0 |
0 |
0 |
Environmental
Complaint
ES08
In the First and Second Quarters Reporting
Period, no environmental complaints
were received by either the RE or ENPO or HyD or the
Main Contractor. However, one (1)
environmental complaint which received the third Quarter Reporting Period on 28
July 2015 regarding milky water observed from drainage outlet of Butterfly
Beach. Addition, two (2) environmental complaints which regarding the
soil/muddy water caused by frequent dump trucks in Lung Mun Road and River
Trade Terminal and milky water discharged from the
drainage outlet near the Butterfly Beach, Tuen Mun, were received on
3 August and 2 September 2015 at the fourth Quarter Reporting Period. The statistical of
environmental complaint is listed in Table ES-04.
Table ES-04 Statistical
Summary of Environmental Complaints
Reporting Period |
Complaint Nature |
Total Registered |
||
Water Quality |
Construction Dust |
Construction Noise |
||
23 October 2014 ¡V 31 October 2015 |
28 July
2015 3 August
2015 2
September 2015 |
NA |
NA |
3 |
ES09
Complaint investigation has conducted by the
Contractor or ET and the corresponding investigation reports for the complaint
have been submitted to relevant parties.
Based on investigation results, the contractor has enhanced the management to comply the Contract requirements.
Notification of Summons and Successful Prosecutions
ES10
No environmental summons or successful
prosecutions were recorded in the Reporting Period.
ES11
For past twelve
months, total 53 occasions joint
site inspection were carried out by the RE, IEC, ET and the Contractor. For
joint site inspections, no non-compliance was observed. However, 129
observations/reminders were recorded within
the past twelve months.
ES12
During each occasion of site inspection,
Pitcher Plants of ecology and grave of culture heritage were also to inspect and audit.
ES13
Construction dust
emission would be a key environmental issue during construction work of the Contract
at dry season. Dust mitigation
measures such as watering at least 12 times per day on all exposed soil within
the Project site and associated work areas in Tuen Mun area throughout the
construction period should be implemented in accordance with the EP
requirement.
ES14
Muddy water or other
water pollutants from sites surface flow to public area should properly
avoided. Water quality mitigation
measures to prevent surface runoff to impact public areas should be fully
implemented special at wet season.
ES15
Construction noise would
be another environmental issue during construction works of the Contract. Noise mitigation measures such as using of
quiet plants should be implemented in accordance with the EM&A requirement throughout
the construction period.
Table of Contents
1 Introduction 1
1.1 Contract Background 1
1.2 Report Structure 1
2 Contract Organization and Construction progress and Environmental Submissions 2
2.1 Contract Organization 2
2.2 Construction Progress 2
2.3 Summary of Environmental Submissions 2
3 Summary of Impact Monitoring Requirements Under the Contract 4
3.1 General 4
3.2 Air Quality Monitoring Parameters 4
3.3 Monitoring Location 4
3.4 Monitoring Frequency 4
3.5 Derivation of Action/Limit (A/L) Levels 5
3.6 Other Environmental Aspects 5
4 Air Quality Monitoring 8
4.1 General 8
4.2 Air Quality Monitoring Results in Reporting
Period 8
4.3 Summary of Action and Limit (A/L) Levels
Exceedance (non-compliance) 8
4.4 Action taken in the event of non-compliance 8
4.5 review of Reasons for and the implication of
non-compliance 8
5 Ecology Monitoring 9
5.1 General 9
5.2 Pitcher Plants Inspection 9
6 CULTURAL HERITAGE 10
6.1 General 10
6.2 Grave Inspection 10
7 Landscpae and Visual 11
7.1 General 11
7.2 Landscape and Visual Inspection 11
8 Landfill Gas Hazard Monitoring 12
8.1 General 12
8.2 Landfill Gas Monitoring Result 12
9 Waste Management 14
9.1 General Waste Management 14
9.2 Records of Waste Quantities 14
10 Inspection and Auditing 15
10.1 Site Inspection 15
11 Environmental Complaint and Non-compliance 16
11.1 Environmental Complaint, Summons and
Prosecution 16
11.2 Summary record of all complaints, action and
working procedures 16
12 Implementation Status of Mitigation Measures 18
12.1 General Requirements 18
13 Conclusions and Recommendations 19
13.1 Conclusions 19
13.2 Recommendations 19
List
of TABLES
Table 2-1 Status of
Environmental Licenses and Permits of the Contract
Table 3-1 Designated Air
Quality Monitoring Stations under the Contract
Table 3-2 Enhanced TSP
Monitoring Plan ¡V Construction Phase
Table 3-3 TSP Action and
Limit Levels for Impact Air Quality Monitoring
Table 3-4 Actions in the
Event of Landfill Gas being Detected in Excavation / Confined Area
Table 4-1 Summary of Air
Quality Monitoring Exceedance
Table 8-1 Summary of
Landfill Gas Measurement Results in this Annual
Table 9-1 Summary of
Quantities of Inert C&D Materials
Table 9-2 Summary of Quantities
of C&D Wastes
Table 10-1 Summary of
Reminders/Observations of Site Inspection for the Annual
Table 11-1 Statistical Summary of
Environmental Exceedance
Table 11-2 Statistical Summary of
Environmental Complaints
Table 11-3 Statistical Summary of Environmental
Summons
Table 11-4 Statistical Summary of
Environmental Prosecution
Table 12-1 Environmental Mitigation
Measures
List of Appendices
Appendix A Project
Layout Plan
Appendix B Layout
Plan of the Contract
Appendix C Organization of the Contract
Appendix D Master
Construction Program
Appendix E Monitoring Locations for the Contract
Appendix F Event and Action Plan
Appendix G Graphical Plots
Appendix H Investigation
Report for Exceedance
Appendix I Environmental Mitigation Measures
Implementation Schedule (EMMIS)
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 ¡V Northern Connection Toll Plaza and
Tunnel Section ((hereafter ¡§the Contract¡¨) and this Contract is part of the Tuen Mun ¡V 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
First (1st) Annual EM&A Review Report to summarize the monitoring results
and inspection findings with the Contractor performance from 23 October 2014 to 31 December 2015 (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.
Site Formation, and Slope stabilization and
Surface drainage works at Portion X.
Ground Investigation Works at various
locations
Site Clearance at various locations
Erection of site office at WA18
Retaining Wall at Portions X and I
Road Works
Piling Works at Portion I
Tree Felling at Portions X and I
Tree Survey
Bridge and Underpass Work at Portion X
Retaining Wall Structure TP_F & RW_B at Portion
X
Footbridge FB1 ¡V Portion X
Instrumentation and Monitoring
Site Formation to Slope A, B, C, D, E, TP_F, TP_A,
TP_G and Upgrading Works
Excavation to Slope A, B,C,D & E
Vehicular Underpass TN-01
Construction of Culvert 1-Stage 4
Bridge TD1, TD2 Bridge G1, G2,Bridge H1&
Footbridge
Natural terrain hazard mitigation measures
Toll Plaza Decking
TD1, TD2
Toll Plaza Footbridge-Section 1
Culvert 1 (TBM) ¡V Stage 4
Road and Drainage Work at Lung Fu Road Roundabout
Associated and Upgrading Works for TP_B, TP_C, TP_D
and TP_E
Retaining Structure RW_B-Section 1, RW_A
Construction sewer Culvert 2 & Culvert 3 and
Existing Box Culvert
Dismantling of HY/2012/04 Project Office at WA6
2.3.1
In according to the EP, the required
documents have submitted to EPD for retention which listed in below:
Monitoring Plan on construction dust
(submission refer to Contract HY/2012/08)
Landscape and Visual Plan (not yet endorsed by EPD)
Waste Management Plan (endorsed by the EPD on 16 March 2015)
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
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 |
Waste Disposal Regulation - Billing Account
for Disposal of Construction Waste |
21-07-2014 |
7020460 |
01-08-2014 |
N/A |
5 |
Permission to
Transplant Pitcher Plant |
02-12-2014 |
(7) in AF CON 11/13
pt.4 |
09-12-2014 |
08-06-2015 |
15-6-2015 |
(30) in AF CON 11/13 pt.4 |
23-6-2015 |
22-12-2015 |
||
6 |
CNP for Construction of Site Office |
15-08-2014 |
GW-RW0656-14 |
03-09-2014 |
22-02-2015 |
7 |
CNP for Site Formation |
15-09-2014 |
GW-RW0761-14 |
29-09-2014 |
29-03-2015 |
8 |
CNP for Concreting |
15-09-2014 |
GW-RW0748-14 |
29-09-2014 |
29-03-2015 |
9 |
CNP for Multiple
Task |
05-12-2014 |
GW-RW0949-14 |
05-12-2014 |
04-05-2015 |
24-04-2015 |
GW-RW0225-15 |
13-05-2015 |
04-11-2015 |
||
10 |
CNP
for GI works |
23-2-2015 |
GW-RW0134-15 |
16-03-2015 |
07-04-2015 |
11 |
CNP for MH5 |
05-05-2015 |
GW-RW0226-15 |
18-05-2015 |
17-11-2015 |
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 ¡V
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 (£gg/m3) |
1-hour TSP (£gg/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 regularly
inspection at least once every week to report
the growth and protection
measure situation.
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 1,785 of 1-hr
TSP measurements and 590 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 October 2014 to
October 2015) and the second Annual EM&A Review Report (November 2014 to
October 2015) prepared by the ET of Contract HY/2012/08.
4.3.1
According to the air quality monitoring
results, no 24-hour TSP exceedance but four (4) Action Levels exceedance of 1-hour
TSP measurement were recorded by Contract HY/2012/08 during the Reporting Period. 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 |
Exceedance |
14 November 2014 (Dry Season) |
ASR1 |
1-hour TSP |
404£gg/m3 396£gg/m3 |
Action Level |
2 December 2014 (Dry Season) |
ASR5 |
1-hour TSP |
346£gg/m3 |
Action Level |
17 December 2014 (Dry Season) |
AQMS1 |
1-hour TSP |
348£gg/m3 |
Action Level |
4.4.1
Once non-compliance was detected, actions
were taken in accordance with the Event-Action Plan in the EM&A
Manual. Notification of Exceedances
(NOEs) to all relevant parties has been issued by the ET of Contract HY/2012/08
upon the results was confirmed.
Investigation was then carried out by the ET of each individual
contract. In the investigation, the
construction activities and implemented mitigation measures undertaken by the
Contractor were reviewed to identify the source of pollutant.
4.5.1
Based on investigation findings, the exceedances
recorded in the Reporting Period were not related to the works under the
Contract of the Project. No
corrective action was required accordingly. Traffic dust is other factors might
affect the monitoring results since Lung Mun Road is a major access to River
Trade Terminal, Tuen Mun Area 38 and NENT Landfill. The investigation reports
for the cause of exceedance are shown in Appendix H.
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
Permission for
transplantation of Pitcher Plant was issued by the AFCD on 9th
December 2014. 280 numbers of Pitcher Plant individuals located at Zones 1 - 7 were transplanted to the
nursery site on 17th December 2014 by the accredited person and his
assistant. The transplantation work was strictly followed to conditions on
permit.
5.1.3
Trial transplantation of pitcher plant from
the nursery site to final receptor site which located near
Zone 9 and Zone 10 was carried
out on 15 April 2015 and a total of 5% pitcher plant was transplanted. Transplantation of
remaining 95% pitcher plant from the nursery site to final receptor site was
completed on 10th
September 2015. Overall the transplanted Pitcher Plants were
protected properly and the growth also was in fair to poor conditions.
5.2.1
A total 53 occasions of inspection were carried
out by the Contractor and ET in the past twelve months.
5.2.2
During weekly site inspection at the nursery
zone before the transplantation to the receptor site, the transplanted Pitcher Plants in the
nursery zone were observed in fair to poor condition. At the
final receptor site, all the transplanted
Pitcher Plants were protected properly and the growth also was in fair to poor
condition. Moreover, no
construction activities were carried out nearby the protected areas of Pitcher
Plants. The chain link fence as
surrounded at the protected zone was maintained in good conditions by the
Contractor.
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:
Non-contact effects of
the engineering works, such as vibration from pneumatic drills which could case damage, such as foundation or wall cracks and
loosening of tiles or fixtures; and
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:
The extent of the agreed
works areas should be regularly checked during the construction phase to ensure
the buffer is being maintained; and
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 Annual, there
are total 53 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
undertaken by the Contractor has fully implemented the EM&A Manual
requirements.
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 Annual, Registered Landscape Architect with the
Contractor had undertaken a total of 53 occasions of inspection.
7.2.2
In the past twelve months, most of the
landscape work such as planting was not yet commenced. 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:
at the ground surface
before excavation commences;
immediately before any
worker enters the excavation;
at the beginning of each
working day for the entire period the excavation remains open; and
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:
directly after the
excavation has been completed; and
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.
8.2.1
In the past twelve months, the Retaining Wall
B and Retaining Wall F construction were nearby Pillar Point Valley (PPV) Landfill. The landfill gas monitoring used BIOGAS
5000 gas analyser was conducted by the Safety
Officer. Location of Retaining Wall
B and Retaining Wall F are illustrated in Appendix E.
8.2.2
There were total 301 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 8-1. Moreover, graphical plot are attached in
Appendix G.
Table 8-1 Summary of Landfill
Gas Measurement Results in this Annual
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 2014
to Jan 2015 |
0% |
0.2% |
0% |
0.2% |
Feb 2015
to Apr 2015 |
0% |
0.2% |
0% |
0.2% |
|||
May 2015
to Jul 2015 |
0% |
0.2% |
0% |
0.2% |
|||
Aug 2015
to Oct 2015 |
0% |
0.2% |
0% |
0.2% |
|||
Oxygen |
<19% |
<18% |
Nov 2014
to Jan 2015 |
20.9% |
21.4% |
21.0% |
21.3% |
Feb 2015
to Apr 2015 |
21.0% |
21.2% |
21.0% |
21.2% |
|||
May 2015
to Jul 2015 |
21.0% |
21.2% |
21.0% |
21.2% |
|||
Aug 2015
to Oct 2015 |
21.0% |
21.1% |
21.0% |
21.1% |
|||
Carbon Dioxide |
>0.5% |
>1.5% |
Nov 2014
to Jan 2015 |
0% |
0.3% |
0% |
0.3% |
Feb 2015
to Apr 2015 |
0% |
0.2% |
0% |
0.2% |
|||
May 2015
to Jul 2015 |
0% |
0.2% |
0% |
0.2% |
|||
Aug 2015
to Oct 2015 |
0% |
0.2% |
0% |
0.2% |
8.2.3
The measurement results shown that slightly
methane concentration was detected and all oxygen concentration was measured
between 20.9% and 21.3% and Carbon Dioxide was between 0 and 0.3 %. 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 2014 ¡V Jan 2015 |
Feb 2015 ¡V Apr 2015 |
May 2015 ¡V Jul 2015 |
Aug 2015 ¡V Oct 2015 |
|||
Reused in this
Contract (Inert) (`000m3) |
25.523 |
45.944 |
41.322 |
45.903 |
158.692 |
- |
Reused in other Projects (Inert) (`000m3) |
48.73 |
63.17 |
37.471 |
11.937 |
161.308 |
• 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) |
113.31 |
12.436 |
16.926 |
16.349 |
159.021 |
Tuen Mum Area 38 |
Table 9-2 Summary
of Quantities of C&D Wastes
Type of Waste |
Quantity |
Total |
Disposal
Location |
|||
Nov 2014 ¡V Jan 2015 |
Feb 2015 ¡V Apr 2015 |
May 2015 ¡V Jul 2015 |
Aug 2015 ¡V Oct 2015 |
|||
Recycled Metal
(`000kg) |
0 |
0 |
0 |
0 |
0 |
- |
Recycled
Paper / Cardboard Packing (`000kg) |
0 |
0.05 |
0 |
0 |
0.05 |
- |
Recycled Plastic
(`000kg) |
0 |
0 |
0 |
0 |
0 |
- |
Chemical
Wastes (`000kg) |
0 |
0 |
0 |
0 |
0 |
- |
General
Refuses (`000m3) |
0.058 |
0.023 |
0.162 |
0.131 |
0.374 |
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 53 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 |
|
November 2014 |
28 October 2014, 4, 11, 19 and 25 November 2014 |
10 |
Completed |
December 2014 |
2, 9, 17, 23 and 30 December 2014 |
16 |
Completed |
January 2015 |
6, 13, 20 and 27 January 2015 |
10 |
Completed |
February 2015 |
3rd, 10th, 17th,
and 24th February 2015 |
10 |
Completed |
March 2015 |
3rd, 10th,
17th, 24th and 31st March 2015 |
14 |
Completed |
April 2015 |
8th, 14th, 21st and 28th
April 2015 |
12 |
Completed |
May 2015 |
5th,
12th , 19th and 26th May 2015 |
7 |
Completed |
June 2015 |
2nd,
9th, 16th, 23rd and 30th June
2015 |
13 |
Completed |
July 2015 |
7th,
14th, 21st and 28th July 2015 |
8 |
Completed |
August 2015 |
4th, 11th,
18th and 25th August 2015 |
11 |
Completed |
September 2015 |
1st, 8th,
15th, 22nd and 29th September 2015 |
11 |
Completed |
October 2015 |
6th, 14th,
20th and 27th October 2015 |
7 |
Completed |
10.1.3
In the past twelve months, there are no non-compliance recorded, however, 129 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 were 3 environmental complaints
and 4 exceedances of the environmental performance limit (Action and Limit
Level) recorded. 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 |
|||
23 October 2014 ¡V 31 October 2015 |
Air Quality |
1-hour TSP |
Two exceedance on 14 November 2014, One exceedance on 2 December 2014; and One exceedance on 17 December 2014). |
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 |
||
23 October 2014 ¡V 31 October 2015 |
3 |
NA |
NA |
28 July
2015 3 August
2015 2
September 2015 |
Table 11-3 Statistical Summary of
Environmental Summons
Reporting Period |
Environmental
Summons Statistics |
|||
Cumulative |
Complaint Nature |
|||
Air |
Noise |
Water |
||
23 October 2014 ¡V 31 October 2015 |
0 |
NA |
NA |
NA |
Table 11-4 Statistical
Summary of Environmental Prosecution
Reporting Period |
Environmental
Prosecution Statistics |
|||
Cumulative |
Complaint Nature |
|||
Air |
Noise |
Water |
||
23 October 2014 ¡V 31 October 2015 |
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.
28 July
2015 - A complaint was received from the DSD on 28 July 2015. The complainant
complained that milky water was observed from drainage outlet to Butterfly
Beach. It was suspected that the milky water was come from the site under the
Contractor. Joint inspection has been carried out by DSD, AECOM and CKJV
immediately receipt the complaint and no milky/ muddy water was found.
Moreover, EPD was conducted site inspection with AECOM and CKJV on 29 July 2015
to further investigation. No milky/ muddy water was observed during the
inspection. However, EPD urged CKJV
to enhance the mitigation measures for wastewater at Eastern Portal and MH7.
3
August 2015 - A complaint was received via 1823 hotline on 3 August 2015. The complainant complained
that the frequent dump trucks
running along Lung Mun Road from Tuen Mun Area 38 Fill Bank and carriageway
near River Trade Terminal causing soil/ muddy water on the road surface. In our
investigation, it was
concluded that the complaint was not related to the works under the Contract.
2 September 2015 - A complaint was received
from the LCSD on 2 September 2015 regarding milky water discharged from the
drainage outlet near the Butterfly Beach, Tuen Mun. It was suspected that the milky water
was come from the site under the Contract. . In our investigation, it was concluded that the complaint was
not related to the works under the Contract.
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 from 9 to 30
September 2015. 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 |
¡P Maintain damp / wet surface
on access road ¡P Keep slow speed in the sites ¡P All vehicles must use wheel
washing facility before off site ¡P Sprayed water during rock
breaking works ¡P During transportation by truck, materials loaded lower
than the side and tail boards, and covered before transport ¡P Compacted all soil stockpiles ¡P Part of the exposed slopes covered geotextile net |
Cultural Heritage |
¡P Set a buffer zone between the working area
and the Grave ¡P All construction materials and equipment store far from
the Grave ¡P Inspection the Grave to ensure provision mitigation
measures effective |
Ecology |
¡P
Wire fencing provided
for temporary protect Pitcher Plants ¡P
Undertake weekly
inspection of Pitcher Plants |
Landfill Gas Hazard |
¡P
Landfill Gas
measurement undertake during trench excavation |
Water Quality |
¡P Temporary drainage system
provide for surface runoff prevent discharge to public area ¡P Wastewater to be treated by
sedimentation tank before discharge. |
Noise |
¡P Restrain operation time of
plants from 07:00 to 19:00 on any working day except for Public Holiday and
Sunday. ¡P Keep good maintenance of
plants ¡P The noisy plants or works
provide mobile noise barriers ¡P Shut down the plants when
not in used |
Waste and Chemical
Management |
¡P On-site sorting prior to
disposal ¡P Follow requirements and
procedures of the ¡§Trip-ticket System¡¨ ¡P
Predict required quantity of concrete accurately ¡P Collect the unused fresh concrete at designated
locations in the sites for subsequent disposal |
General |
¡P The site was generally kept
tidy and clean. |
13.1.1
This is 1st
Annual EM&A Review Report presenting the
monitoring results and inspection findings for the Reporting Period from 23 October 2014 to 31 October 2015.
13.1.2
No exceedances of 24-hour TSP monitoring were
recorded in the Reporting Period. However,
a total of four (4) Action Level exceedances of 1-hour TSP measurements were
triggered in ASR1 (2 exceedance), ASR5 and AQMS1 on 14 November, 2 and 17
December 2014 respectively. NOE was issued by the ET of HY/2012/08 to notify all relevant parties. Based on investigation finding, the
exceedances were unlikely related with the works under the Contract. The Contractor was reminded to fully
implement the dust control measures.
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 the
construction of Retaining
Wall B and Retaining Wall F 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 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 13 joint site inspections during the Reporting Period. No
non-compliance was recorded during the site inspection but total 129 observations/reminders
were recorded in the past twelve months.
All the deficiencies were rectified
before next site inspection date.
13.1.8
A total 53 occasions of Pitcher Plant inspection
were carried out by the Contractor and ET in the past twelve months. Trial transplantation
of pitcher plant from the nursery site to final receptor site which located near Zone 9 and Zone 10 was carried out on 15 April 2015 and
a total of 5% pitcher plant was transplanted. Transplantation of remaining 95% pitcher plant from the nursery site to
final receptor site was completed on 10th September 2015. Overall the
transplanted Pitcher Plants were protected properly and the growth also was in
fair to poor conditions.
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 years was satisfactory and acceptance.