1
Introduction
The SENT Landfill
Extension (SENTX) forms an integral part in the Strategic Plan in maintaining
the continuity of landfill capacity in the Hong Kong for the cost-effective and
environmentally satisfactory disposal of waste. The Environmental Impact Assessment (EIA) Report and
the associated Environmental Monitoring and Audit (EM&A) Manual for
the construction, operation, restoration and aftercare of the SENTX (hereafter
referred to as “the Project”) have been approved under the Environmental
Impact Assessment Ordinance (EIAO) in May 2008 (Register No.: AEIAR-117/2008) (hereafter referred to as the approved EIA Report) and an
Environmental Permit (EP-308/2008) (EP) was granted by the Director of
Environmental Protection (DEP) on 5 August 2008.
Since then, applications for Variation
of an Environmental Permit (No. VEP-531/2017) were submitted to EPD and the
Variation of Environmental Permits (EP-308/2008/A and EP-308/2008/B) were
granted on 6 January 2012 and 20 January 2017, respectively, as the Hong Kong
SAR Government has decided to reduce the scale of the design scheme of SENTX
assessed in the approved EIA Report and SENTX will only receive construction
waste. In May 2018, a Further Environmental Permit (FEP) (FEP-01/308/2008/B)
was granted to the SENTX’s contractor, Green Valley Landfill, Limited (GVL).
ERM-Hong Kong, Limited
(ERM) and Meinhardt Infrastructure and Environment Limited (Meinhardt) are
commissioned to undertake the roles of Environmental Team (ET) and the
Independent Environmental Checker (IEC), respectively, to undertake the
EM&A activities for the Project in accordance with the requirements specified in
the EP, updated EM&A Manual (), approved EIA
Report ()
taking account of the latest design and other relevant statutory requirements.
The SENTX is a piggyback landfill,
occupying the southern part of the existing SENT Landfill (including its
infrastructure area) and 13 ha of Tseung Kwan O (TKO) Area 137. A layout plan
of the SENTX is shown in Figure
1.1. Under the latest design, the SENTX has a net void capacity of
about 6.5 Mm3 and provides an additional lifespan of about 6 years,
commencing operation upon exhaustion of the SENT Landfill. The SENTX will
receive construction waste only.
The key implementation milestones of the
Project are
indicatively
summarised in Table 1.1. The construction works of the Project
commenced on 2 January 2019.
Table 1.1 Estimated Key Dates of Implementation
Programme
|
Key
Stage of the Project
|
Indicative
Date
|
|
Start
construction
|
2
January 2019
|
|
Commissioning
of new infrastructure facilities
|
2020
|
|
Demolition
of existing infrastructure facilities
|
2021
|
|
Start
waste intake at SENTX
|
2021
or upon exhaustion of SENT Landfill
|
|
Estimated
exhaustion date of SENTX
|
2027
|
|
End
of aftercare for SENTX
|
2057
|
The major construction works of the
SENTX includes:
·
Site
formation at the TKO Area 137 and the existing infrastructure area at SENT
Landfill;
·
Construction
of surface and groundwater drainage systems;
·
Construction
of the leachate containment and collection systems;
·
Construction
of new leachate and landfill gas treatment facilities, site offices,
maintenance yards at the new infrastructure area;
·
Construction
of new pipelines to transfer the leachate and landfill gas collected from the
existing SENT Landfill to the treatment facilities at the new infrastructure
area;
·
Construction
of the site access and new waste reception facilities; and
·
Demolition
of the facilities at the existing SENT Landfill infrastructure area.
This is the Quarterly EM&A Report
for the Project which summarises the key findings of the EM&A programme
during the reporting period from 2 January to 31 March 2019 for the construction
works.
The organization structure of the
Project is presented in Figure 1.2.
Figure
1.2 Organisation Chart
Contact details of the key personnel are
summarized in Table 1.2 below.
Table 1.2 Contact Information of Key
Personnel
|
Party
|
Position
|
Name
|
Telephone
|
|
Contractor
(Green
Valley Landfill Limited)
|
Project
Manager
|
Gary
Barnicott
|
2706
8827
|
|
Complaint
Hotline
|
|
2706
8682
|
|
Environmental
Team (ET) (ERM-Hong Kong, Limited)
|
ET
Leader
|
Frank
Wan
|
2271
3152
|
|
Independent Environmental Checker (IEC)
(Meinhardt Infrastructure and Environment Limited)
|
IEC
|
Fredrick
Leong
|
2859 1739
|
The programme of the construction is
shown in Annex A. As
informed by the Contractor, details of the major works carried out in this
reporting period are listed below:
January 2019
Ÿ
Site
entrance establishment;
Ÿ
Installation
of chain link fence;
Ÿ
Site
formation of landfill Cell 1 & 2;
Ÿ
Site
clearance of landfill Cell 1 & 2 and sediment pit;
Ÿ
Site
formation of infrastructure area; and
Ÿ
Construction
of perimeter bund.
February 2019
·
Construction of
perimeter bund;
·
Site clearance;
·
Erection of fencing;
·
Plate load test at
Leachate Treatment Plant (LTP); and
·
DP4 channel
improvement works.
March 2019
·
Erection of site
fencing;
·
Construction of
perimeter bund – Cell 1X;
·
Excavation of
sediment trap and inlet box culvert X9;
·
Formation of new
Infrastructure Area;
·
Plate load test for
new Infrastructure Area;
·
Remediation works
for DP4 Channel; and
·
Advance screen
planting.
The environmental mitigation implementation
schedule is presented in Annex B.
The status for all environmental aspects
are presented in Table 1.3. The EM&A requirements remained
unchanged during the reporting period.
Table 1.3 Summary of Status for the
Environmental Aspects under the Updated EM&A Manual
|
Parameters
|
Status
|
|
Air
Quality
|
|
Baseline
Monitoring
|
The
results of baseline air quality monitoring were reported in Baseline
Monitoring Report and submitted to EPD under EP Condition 3.3
|
|
Impact
Monitoring
|
On-going
|
|
Noise
|
|
Baseline
Monitoring
|
The
results of baseline noise monitoring were reported in Baseline Monitoring
Report and submitted to EPD under EP Condition 3.3
|
|
Impact
Monitoring
|
On-going
|
|
Surface
Water Quality
|
|
Baseline
Monitoring
|
The
results of baseline surface water quality monitoring were reported in
Baseline Monitoring Report and submitted to EPD under EP Condition 3.3
|
|
Impact
Monitoring
|
On-going
|
|
Waste
Management
|
|
Waste
Monitoring
|
On-going
|
|
Landscape
and Visual
|
|
Baseline
Monitoring
|
The
results of baseline landscape and visual monitoring were reported in Baseline
Monitoring Report and submitted to EPD under EP Condition 3.3
|
|
Construction
Phase Audit
|
On-going
|
|
Site
Environmental Audit
|
|
Regular
Site Inspection
|
On-going
|
|
Complaint
Hotline and Email Channel
|
On-going
|
|
Environmental
Log Book
|
On-going
|
Taking into account the construction
works, impact monitoring of air quality, noise, surface water quality and waste
management were carried out in the reporting period. The monitoring schedule
of air quality, noise and surface water quality monitoring are provided in Annex C.
The EM&A programme also involved environmental
site inspections and related auditing conducted by the ET for checking the
implementation of the required environmental mitigation measures recommended in
the approved EIA Report and relevant EP submissions. To promote the
environmental awareness and enhance the environmental performance of the
contractors, environmental trainings and regular environmental management
meetings were conducted during the reporting period, which are summarized as
below:
Ÿ
Three
environmental management meetings were held with the Contractor, ER, ET, IEC
and EPD on 17 January, 14 February and 14 March 2019; and
Ÿ
Environmental
toolbox trainings on the following topics were provided by the Contractor to
the workers:
Ÿ
Dark
Smoke on 11 January 2019;
Ÿ
Air
Pollution Control (NRMM) (Emission) Regulation on 25 January 2019;
Ÿ
Illegal
Dumping on 13 February 2019;
Ÿ
Noise
Control Ordinance on 21 February 2019;
Ÿ
Waste
Water Management on 11 March 2019; and
Ÿ
Vehicle
Maintenance Practices on 26 March 2019.
The status of statutory environmental
compliance with the EP conditions under the EIAO, submission status under the
EP and implementation status of mitigation measures are presented in Table 1.4.
Table 1.4 Status of Submissions and
Implementation Status of Mitigation Measures under EP
|
EP Condition
|
Submission / Implementation Status
|
Status
|
|
2.3
|
Management
Organisation of Main Construction Companies
|
Accepted
by EPD.
|
|
2.4
|
Setting
up of Community Liaison Group
|
Community
Liaison Group was set up.
|
|
2.5
|
Submission
of Detailed Landfill Gas Hazard Assessment Report
|
Accepted
by EPD on 10 January 2019.
|
|
2.6
|
Submission
of Restoration and Ecological Enhancement Plan
|
To
be prepared within 6 months after the commencement of construction of the
Project.
|
|
2.7
|
Setting
up of Trial Nursery
|
To
be set up during construction phase.
|
|
2.8
|
Advance
Screen Planting
|
To
be completed within 9 months of taking procession of the Project Site.
|
|
2.9
|
Provision
of Multi-layer Composite Liner System
|
Under
implementation.
|
The environmental licenses and permits,
including environmental permit, water discharge license, registration as
chemical waste producer and construction noise permit, which are valid in the
reporting period are presented in Table 1.5. No non-compliance with
environmental statutory requirements was recorded.
Table 1.5 Status of Statutory
Environmental Requirements
|
Description
|
Ref No.
|
Status
|
|
Environmental Permit
|
EP-308/2008
|
Granted on 5 August 2008
|
|
Variation of Environmental Permit
|
EP-308/2008/A
|
Granted on 6 January 2012
|
|
EP-308/2008/B
|
Granted on 20 January 2017
|
|
Further Environmental Permit
|
FEP-01/308/2008/B
|
Granted on 16 May 2018
|
|
Water Discharge License under Water
Pollution Control Ordinance (Permit Holder: Chun Wo)
|
-
|
Application submitted on 19 June 2018
|
|
Billing Account for Disposal of
Construction Waste
|
Chit Account Number: 5001692
|
Approved on 28 December 2005
|
|
Registration as Chemical Waste
Producer (Permit Holder: Chun Wo)
|
5213-839-C3507-10
|
Issued on 23 August 2018
|
|
Construction Noise Permit (Permit
Holder: Chun Wo)
|
GW-RE0002-19
|
Validity from 8 January 2019 to 1 July
2019
|
2
EM&A Results
The EM&A programme for the Project required
environmental monitoring for air quality, noise and surface water quality as
well as environmental site inspections for air quality, noise, surface water
quality, waste management, and landscape and visual impacts. The EM&A
requirements and related findings for each component are summarized in the
following sections.
2.1.1
Monitoring
Requirements and Equipment
According to the updated EM&A Manual of the
Project, impact air quality monitoring (dust, in term of Total Suspended
Particulates (TSP)) was
carried out at the two designated monitoring locations (i.e. DM1 and DM2) at a 6-day
interval.
As there
are two existing TSP monitoring
stations (i.e. TKO-A1 and TKO-A2a) currently operating by the Civil Engineering
and Development Department (CEDD) to monitor the 24-hour TSP levels at the proposed dust
monitoring stations for the SENTX, it is considered that the CEDD monitoring
data can represent the dust condition of the SENTX during the construction
phase.
The Action and Limit
Levels of the air quality monitoring is provided in Table 2.1 below.
Table 2.1 Action and Limit Levels for 24-hour
TSP
|
Monitoring Station
|
Action Level
|
Limit Level
|
|
DM-1
– Site Egress
of TKO Area 137 Fill Bank
|
204
µg m-³
|
260
µg m-³
|
|
DM-2A
–Combined
Reception and Exit Office (CREO) of TKO Area 137 Fill Bank
|
193
µg m-³
|
260
µg m-³
|
High volume air samplers
(HVSs) in compliance with the specifications listed under Section 3.2.2 of the
updated EM&A Manual were used to measure 24-hour TSP levels at the CEDD
dust monitoring stations. The HVSs were calibrated upon installation and
thereafter at bi-monthly intervals to check the validity and accuracy of the
results.
The equipment used in
the impact air quality monitoring
programme and
monitoring locations are summarized in Table 2.2 and illustrated in Figure 2.1 respectively.
Table 2.2 Dust Monitoring Details
|
Monitoring Station
|
Location
|
Parameter
|
Frequency and Duration
|
Monitoring Dates
|
Equipment
|
|
DM1
|
Site Egress of TKO Area
137 Fill Bank
|
24-hour TSP
|
Once every 6 days during
the construction phase of the Project
|
4, 10, 16, 22, 28 January
2019
3, 9, 15, 21, 27 February
2019
5, 11, 17, 23, 29 March
2019
|
HVS Greasby 105 (S/N: 9795
(ET/EA/003/18))
|
|
DM2
|
Combined Reception and Exit
Office (CREO) of TKO Area 137 Fill Bank
|
HVS
Andersen G1051 (S/N: 1176 (ET/EA/003/05))
|
2.1.2
Monitoring Schedule
for the Reporting Period
The schedule for air quality monitoring
during the reporting period is provided in Annex C.
2.1.3
Results and
Observations
The monitoring results for 24-hour TSP
are summarized in Table 2.3. The detailed monitoring results and the graphical
presentation of the 24-hour TSP results at each monitoring location are provided
in Annex D1.
Table 2.3 Summary of 24-hour TSP
Monitoring Results in the Reporting Period
|
Month
|
Monitoring Station
|
24-hr TSP
Concentration (µg m-3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
Average
|
Range
|
|
January 2019
|
DM-1
|
110
|
79 – 146
|
204
|
260
|
|
DM-2
|
113
|
84 - 161
|
193
|
260
|
|
February 2019
|
DM-1
|
111
|
83 – 134
|
204
|
260
|
|
DM-2
|
116
|
82 - 160
|
193
|
260
|
|
March 2019
|
DM-1
|
88
|
67 – 107
|
204
|
260
|
|
DM-2
|
95
|
68 - 113
|
193
|
260
|
The major dust sources in the reporting
period included fugitive dust emission from exposed area in SENTX, as well as nearby
operations of the existing SENT landfill and the TKO Area 137 Fill Bank.
All the 24-hour TSP results were below
the Action and Limit Levels at the monitoring locations in the reporting
period. No action is thus required to be undertaken in accordance with the
Event and Action Plan presented in Annex D2.
2.1.4
Meteorological Data
Meteorological data obtained from the
on-site meteorological monitoring station at the existing SENT landfill (see Figure 2.1) were used for
the dust monitoring and are shown in Annex D3. The meteorological station will be relocated
to a new position for SENTX as per the updated EM&A Manual after the new
infrastructure area at the SENTX is constructed. It is considered that meteorological
data obtained at the existing the on-site meteorological monitoring station are
representative of the Project area and could be used for the construction phase
dust monitoring programme for the Project.
2.2.1
Monitoring
Requirements and Equipment
According to the updated EM&A Manual of the
Project, impact noise
monitoring was conducted weekly at the monitoring location (i.e. NM1) to obtain one set of 30 minutes measurement
between 07:00 and 19:00 hours on normal weekdays.
The Action and Limit Level for
construction noise of the Project is provided in Table 2.4 below.
Table 2.4 Action
and Limit Levels for Construction Noise
|
Time Period
|
Action
Level (a)
|
Limit Level
(b)
|
|
07:00 – 19:00
hrs on normal weekdays
|
When one
documented complaint is received from any one of the noise sensitive
receivers (NSRs)
or
75 dB(A)
recorded at the monitoring station
|
75 dB(A) at NSRs
|
|
Notes:
(a)
75dB(A) along and at about 100m from the
SENTX site boundary was set as the Action Level.
(b)
Limits specified in the GW-TM and IND-TM for
construction and operational noise, respectively.
|
Noise monitoring was performed by ALS
Technichem (HK) Pty Ltd. (HOKLAS Registration No. 066) using sound level meter
at the designated monitoring station NM1 (see Figure 2.1) in accordance with the requirements
stipulated in the updated EM&A Manual. Acoustic
calibrator was deployed to check the sound level meter at a known sound
pressure level. Details of the deployed equipment are provided in Table 2.5.
Table 2.5 Noise Monitoring Details
|
Monitoring Station (1)
|
Location
|
Parameter
|
Frequency and Duration
|
Monitoring Dates
|
Equipment
|
|
NM1
|
SENTX
Site Boundary (North)
|
Leq
(30 min) measurement
between 07:00 and 19:00 hours on normal weekdays
(Monday
to Saturday)
|
Once
per week for 30 mins during the construction period of the
Project
|
3,
10, 17, 24, 31 January 2019
8,
13, 20, 27 February 2019
7,
13, 22, 28 March 2019
|
Sound
Level Meter: B&K 2238 (S/N: 2285722)
Acoustic
Calibrator: Quest QC-20 (S/N: QO9090006)
3M
AC-300
(S/N:
AC300006213)
|
2.2.2
Monitoring Schedule
for the Reporting Period
The schedule for noise monitoring during
the reporting period is provided in Annex C.
2.2.3
Results and
Observations
Results for noise monitoring are
summarized in Table 2.6. The monitoring results and the graphical
presentation of the data are provided in Annex E1.
Table 2.6 Summary of Construction Noise
Monitoring Results in the Reporting Period
|
Month
|
Monitoring Station
|
Measured
Noise Level Leq
(30 min), dB(A)
|
|
Average
|
Range
|
Action
and Limit Level
|
|
January 2019
|
NM1
|
52.0
|
48.9
– 53.6
|
75
|
|
February 2019
|
NM1
|
51.0
|
48.0
– 52.5
|
75
|
|
March 2019
|
NM1
|
52.2
|
51.1
– 53.1
|
75
|
Major noise sources during the noise
monitoring included noise from operations of the existing SENT landfill and the
TKO Area 137 Fill Bank, aircrafts and insects.
No Action and Limit Levels exceedance
was recorded for construction noise monitoring in the reporting period. No
action is thus required to be undertaken in accordance with the Event and
Action Plan presented in Annex
E2.
2.3
Surface Water Quality Monitoring
2.3.1
Monitoring
Requirements and Equipment
According to the updated EM&A Manual
of the Project, impact surface water quality monitoring were carried out at the
three designated surface water discharge points (i.e. DP3, DP4 and DP6) weekly to
ensure that the SENTX will not cause adverse water quality impact.
Dissolved Oxygen (DO) and pH value were
measured in-situ whereas the level of suspended solids (SS) were determined by
ALS Technichem (HK) Pty Ltd. (HOKLAS Registration No. 066).
The Action and Limit Levels of the surface
water quality impact monitoring are provided in Table 2.7.
Table 2.7 Action
and Limit Levels for Surface Water Quality
|
Parameters
|
Action Level
|
Limit Level
|
|
|
DP3
|
DP4 & DP6
|
DP3
|
DP4 & DP6
|
|
DO
|
< 5.13 mg/L
|
< 5.80 mg/L
|
< 4.35 mg/L
|
< 5.42 mg/L
|
|
SS
|
> 209.3 mg/L
|
> 11.7 mg/L
|
> 217.0 mg/L
|
> 12.7 mg/L
|
|
pH
|
> 8.88
|
> 8.39
|
> 9.28
|
> 8.40
|
The locations of the monitoring stations
under the Project are shown in Figure 2.1. All in situ monitoring instruments
were checked, calibrated and certified by a laboratory accredited under HOKLAS
or other international accreditation scheme before use, and subsequently
re-calibrated at 3 monthly intervals throughout all stages of the surface water
quality monitoring programme. Calibration
for a DO meter was carried out before measurement according to the instruction
manual of the equipment model. Details of the equipment used in the impact surface water quality
monitoring works are provided
in Table 2.8.
Table 2.8 Impact Surface Water Quality
Monitoring Details
|
Monitoring Station
|
Location
|
Frequency
|
Monitoring Dates
|
Parameter
|
Equipment
|
|
DP3
|
Surface water discharge
point DP3
|
Weekly
|
3, 10, 17, 24, 31 January
2019
8, 13, 20, 27 February
2019
8, 13, 22, 28 March 2019
|
•pH
•DO
•SS
|
YSI Professional DSS (S/N:
15H102620/ 15H103928)
|
|
DP4
|
Surface water discharge
point DP4
|
|
DP6
|
Surface water discharge
point DP6
|
2.3.2
Monitoring Schedule
for the Reporting Period
The schedule for surface water quality
monitoring during the reporting period is provided in Annex C.
2.3.3
Results and
Observations
A total of 13 monitoring events for
impact surface water quality monitoring were scheduled at all designated
monitoring stations during the reporting period. However, sampling could not
be carried out in January and February 2019 and on 22 and 28 March 2019 at all
monitoring locations, on 8 March 2019 at DP6 and on 13 March 2019 at DP4 and
DP6 and due to insufficient flow. Impact water quality
monitoring results and graphical presentations are provided in Annex F1.
Action and Limit Level exceedances were
recorded for surface water quality impact monitoring in the reporting period
and actions in accordance with the Event and Action Plan presented in Annex
F2 were
undertaken. Investigations on the Action and Limit Levels exceedances were
conducted and summarized in Table 2.9 below.
Table 2.9 Details of Exceedances Recorded
for Surface Water Quality Monitoring
|
Date
|
Monitoring Location
|
Parameter
|
Type of Exceedance
|
Remarks
|
|
8
March 2019
|
DP3
|
pH
|
Limit
Level
|
The
absence of construction works at the upstream of and in the vicinity of DP3
and DP4 might suggest that the exceedance at DP3 and DP4 are deemed to
activities that are not related to the Project.
|
|
8
March 2019
|
DP3
|
SS
|
Limit
Level
|
|
8
March 2019
|
DP4
|
SS
|
Limit
Level
|
Based on the preliminary investigation
conducted for each of the monitoring event with potential Action and Limit
Levels exceedances with the Contractor, the ER and the IEC, there is no
evidence showing the exceedances were related to the Project. Nevertheless,
the Contractor was reminded to implement all relevant mitigation measures for
the construction works and maintain good site practice. The ET will keep track
on the monitoring data and ensure Contractor’s compliance of the environmental
requirements.
2.4.1
Monitoring
Requirements
According to the updated EM&A Manual of the
Project, the monthly landscape and visual audit was conducted on 17 January, 13 February and 21 March
2019 to monitor the
implementation of the landscape and visual mitigation measures during
construction phase.
All relevant environmental mitigation
measures listed in the approved EIA Report and the EM&A Manual and their
implementation status are summarised in Annex B.
2.4.2
Results and Observations
The Contractor has implemented
environmental mitigation measures as stated in the approved EIA Report and the
EM&A Manual.
Regarding the landscape and visual audit, the Contractor was reminded to
identify the topsoil to be generated from the construction works and plan for
the storage and re-use of the topsoil where practical. The Contractor shall
consider the mitigation measures during the design phase, including the
preparation of the Construction Drawings and Detailed Landscape Design
Drawings. In addition, the Contractor was reminded to complete the advance
screen planting works within 9 months of taking possession of the SENT Site
(i.e. by September 2019).
Site inspections were carried
out on a weekly basis with the Contractor, IEC and ER to monitor the
implementation of proper environmental pollution control and mitigation
measures for air quality,
noise, surface water quality and waste management under the Project. In the reporting
period, 13 site inspections were carried out on 3, 10, 17, 24 and 31 January,
8, 14, 21 and 28 February and 7, 14, 21 and 28 March 2019.
Key observations during the site inspections are summarized
in Table 2.10.
Table 2.10 Key Observations Identified
during the Site Inspection in this Reporting Month
|
Inspection Date
|
Environmental Observations and Recommendations
|
|
3 January 2019
|
·
The Contractor
shall display a NRMM label to the excavator at Cell 1 Area.
·
Sandbags shall be
placed on the netting next to the buttress wall.
·
A proper drip tray
shall be provided near the Chun Wo’s vehicle entrance.
·
A temporary wheel
washing facility at the Chun Wo’s vehicle entrance/ exit shall be provided.
|
|
10 January 2019
|
·
The Contractor
shall clean up the oil stain near the Chun Wo’s vehicle entrance and dispose
of it as chemical waste.
|
|
17 January 2019
|
·
The
Cell 1 and Cell 2 areas were generally observed dry despite regular watering
by water trucks was provided. Fugitive dust emission was observed when
vehicles passed by. The Contractor shall enhance watering to the Site,
especially the working areas such as the excavation works.
·
The
Contractor shall display a NRMM label to the roller at Cell 1 area.
|
|
24 January 2019
|
·
The
Site was generally observed dry despite regular watering by water trucks on
the main haul road was provided. Fugitive dust emission was observed under
strong winds. The Contractor shall enhance watering to the Site (e.g.
increase the frequency of watering or install sprinklers), especially the
working areas.
·
A
proper drip tray shall be provided at X1 area.
|
|
31 January 2019
|
·
The
Contractor shall cover or water any stockpile of dusty materials to ensure
the entire surface is wet.
|
|
8 February 2019
|
·
-
|
|
14 February 2019
|
·
The
Contractor shall display a NRMM label to the roller at Cell X1 perimeter bund.
·
The
Contractor shall display chemical labels to the chemicals and keep daily
record of the WetSep near the Chun Wo’s vehicle entrance.
·
The
Contractor shall display chemical label to the chemical at wheel washing
facilities.
·
The
Contractor shall clear the general refuse near the Chun Wo’s vehicle
entrance.
|
|
21 February 2019
|
·
The
Contractor shall remove the wash-water at the wheel washing facilities
regularly to avoid overflow.
·
The
Contractor shall keep the road near the vehicle exit clear of dusty materials.
·
The
Contractor shall clear the general refuse at Cell X1 west.
|
|
28 February 2019
|
·
The
Contractor shall conduct activities related to dusty materials, i.e. handling
of cement in an enclosed area to avoid fugitive dust emission.
·
The
Contractor shall remove the wash-water and silt at the wheel washing
facilities regularly to avoid overflow.
·
The
Contractor shall clear the general refuse at Cell X1 perimeter bund.
|
|
7 March 2019
|
·
The
Contractor shall maintain the slit trap at DP6 channel.
·
The
Contractor shall clear the general refuse near the Chun Wo’s vehicle entrance
and DP6.
|
|
14 March 2019
|
·
The
Contractor shall minimize and compact the exposed soil near the DP6 channel
to avoid SS runoff to the water channel.
|
|
21 March 2019
|
·
The
Contractor shall implement dust control measures when conducting activities
related to dusty materials (i.e. handling of sawdust).
|
|
28 March 2019
|
·
The
Contractor shall avoid accumulation of stagnant water in the drip trays in
Cell X1 area and near DP6.
|
The Contractor has rectified all of the
observations identified during environmental site inspections in the reporting period.
The Contractor has registered as
chemical waste producer under the Contract. Sufficient numbers of receptacles
were available for general refuse collection and sorting.
As informed by the Contractor, waste generated
during this reporting period include mainly inert C&D materials. Reference
has been made to the waste flow table prepared by the Contractor. The
quantities of different types of wastes and imported fill materials are summarised
in Table 2.11.
Table 2.11 Quantities of Different Waste
Generated and Imported Fill Materials
|
Month/
Year
|
Inert
C&D Materials (a)
(in ‘000m3)
|
Imported
Fill
(in ‘000kg)
|
Inert
Construction Waste Re-used
(in ‘000m3)
|
Non-inert
Construction Waste (b)
(in ‘000m3)
|
Recyclable
Materials (c) (in ‘000kg)
|
Chemical
Wastes
(in ‘000kg)
|
|
Rock
|
Soil
|
|
January
2019
|
0.061
|
0
|
0
|
0
|
0
|
0
|
0
|
|
February
2019
|
0.008
|
0
|
0
|
0
|
0.005
|
0
|
0
|
|
March
2019
|
0.032
|
1482.09
|
0
|
0
|
0.006
|
0
|
0
|
|
Notes:
(a) Inert
construction wastes include hard rock and large broken concrete, and
materials disposed as public fill. Density assumption: 1.6 (kg/L) for public
fill
(b) Non-inert
construction wastes include general refuse disposed at landfill. Density
assumption: 0.9 (kg/L) for general refuse.
(c) Recyclable
materials include metals, paper, cardboard, plastics and others.
|
2.7
Implementation Status of Environmental Mitigation
Measures
A summary of the Environmental
Mitigation Implementation Schedule is presented in Annex B. The necessary
mitigation measures were implemented properly for the Project.
Results for air quality monitoring
(24-hour TSP) complied with the Action and Limit Levels in the reporting
period. No Action and Limit Levels exceedances were recorded for construction
noise monitoring. One Limit Level of pH exceedance and two Limit Level of
Suspended Solids (SS) exceedances were recorded for surface water quality
impact monitoring in the reporting period. The exceedances were considered not
Project-related upon further investigation.
Cumulative statistics on exceedances is
provided in Annex G.
There were no complaints, notification
of summons or prosecution recorded in the reporting period.
Statistics on complaints, notifications
of summons and successful prosecutions are summarised in Annex G.
3
Conclusion and
Recommendation
This Quarterly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 2
January to 31 March 2019 in accordance with the updated EM&A Manual and the
requirements of the Environmental Permit (EP-308/2008/B).
Air quality (24-hour TSP), noise and water
quality (DO, pH and SS) monitoring were carried out in the reporting period. Results
for air quality monitoring (24-hour TSP) complied with the Action and Limit
Levels in the reporting period. No Action and Limit Levels exceedances were
recorded for construction noise monitoring. One Limit Level of pH exceedance and two Limit Level of
Suspended Solids (SS) exceedances were recorded for surface water quality
impact monitoring in the reporting period. The exceedances were considered not
Project-related upon further investigation.
Thirteen environmental site inspections were
carried out during the reporting period. Recommendations on remedial actions
were given to the Contractor for the deficiencies identified during the site inspections.
There were no complaints, notification
of summons or prosecution recorded in the reporting period.
It is noted that the environmental
pollution control and mitigation measures were properly implemented and the
construction activities of the Project did not introduce any adverse impact to
the sensitive receivers in the reporting period. The monitoring programme has
been reviewed and was considered as adequate to cater for the nature of works
in progress. Change to the monitoring programme was thus not recommended at this
stage. The monitoring programme will be evaluated as appropriate in the next
reporting period. The ET will keep track on the construction works to confirm
compliance of environmental requirements and the proper implementation of all
necessary mitigation measures.
