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AUES Job No.: TCS00715/14
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Tuen Mun - Chek
Lap Kok Link
Contract No. HY/2013/12 –
Northern Connection Toll Plaza and Associated Works
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1st Quarterly Environmental
Monitoring & Audit Summary Report –
(November 2014 to January 2015)
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Prepared
For
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CRBC
and Kaden Joint Venture
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Quality Index
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Date
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Reference No.
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Prepared By
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Certified By
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20 March 2015
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TCS00715/14/600/R0067v2
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Ben
Tam
(Environmental Consultant)
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T.W. Tam
(Environmental Team Leader)
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Version
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Date
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Description
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1
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27 February 2015
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First
Submission
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2
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20
March 2015
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Amended
according to the IEC’s comments on 16 March 2015
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This
report has been prepared by Action-United Environmental Services &
Consulting with all reasonable skill, care and diligence within the terms of
the Agreement with the client, incorporating our General Terms and Conditions
of Business and taking account of the resources devoted to it by agreement
with the client. We disclaim any responsibility to the client and others in
respect of any matters outside the scope of the above. This report is
confidential to the client and we accept no responsibility of whatsoever
nature to third parties to whom this report, or any part thereof, is made
known. Any such party relies upon the report at their own risk.
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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 Environmental Permit number VEP-354/2009C issued on 10 December 2014. The
layout Plan of the Project and the Contract are showed
in Appendix A and B
respectively.
1.1.2.
The construction 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.
Action-United Environmental Services & Consulting has been commissioned as an Independent ET to implement the
relevant EM&A program in accordance
with the approved EM&A Manual, as well as the associated duties.
1.1.4.
This is the 1st
Quarterly EM&A Summary Report covering the period
from 23 October
2014 to 31 January 2015.
1.2.1
The Monthly Environmental Monitoring and
Audit (EM&A) Report is structured into the following sections:-
Section 1 Introduction
Section 2 Contract
Organization and Construction Progress
Section 3 Summary
of Impact Monitoring Requirements
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 Site Inspections
Section 11 Environmental
Complaints 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 is enclosed in Appendix D.
November 2014
Ÿ Site
Formation at Portion X.
Ÿ Slope
stabilization works at Portion X.
Ÿ Surface
drainage at Portion X.
Ÿ Ground
Investigation Works at various locations
Ÿ Site
Clearance at various locations
Ÿ Erection
of site office at WA18
Ÿ Retaining
Wall at Portions X and I
Ÿ Road Works
Ÿ Piling
Works at Portion I
Ÿ Tree
Felling at Portions X and I
December 2014
Ÿ
Site Formation – Portion X
Ÿ
Slope stabilization works – Portion X
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Surface drainage – Portion X
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Ground Investigation Works – Various Locations
Ÿ
Site Clearance – Various Locations
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Retaining Wall – Portion X and Portion I
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Piling Works – Portion I
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Tree Felling – Portion I
Ÿ
Tree Survey
January 2015
Ÿ Site Formation – Portion X
Ÿ Slope stabilization works – Portion X
Ÿ Surface drainage – Portion X
Ÿ Ground Investigation Works – Various Locations
Ÿ Site Clearance – Various Locations
Ÿ Retaining Wall – Portion X and Portion I
Ÿ Piling Works – Portion I
Ÿ Tree Felling – Portion I and Portion X
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 (not yet endorsed by EPD)
Ÿ
Baseline Monitoring Report (not yet endorsed
by EPD)
2.3.2
Summary of
the relevant permits, licenses, and/or notifications on environmental
protection for the Project of each contracts are presented in Table 2-1.
Table 2-1 Status
of Environmental Licenses and Permits of the Contracts
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No.
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Type of Permit/
License
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Submission Date
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Reference/
License No.
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Date of Issue
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Date of Expiry
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1
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Air pollution Control (Construction Dust)
Regulation
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06-08-2014
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377719
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06-08-2014
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N/A
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2
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Chemical Waste Producer Registration -
Waste Producers Number
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06-08-2014
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5117422C389301
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03-09-2014
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N/A
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3
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Water Pollution Control Ordinance -
Discharge License
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13-08-2014
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WT00020065-2014
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29-09-2014
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30-09-2019
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4
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Waste Disposal Regulation - Billing Account
for Disposal of Construction Waste
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21-07-2014
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7020460
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01-08-2014
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N/A
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5
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Permission
to Transplant Pitcher Plant
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02-12-2014
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(7) in AF CON 11/13 pt.4
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09-12-2014
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08-06-2015
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6
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CNP for Multiple Task
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05-12-2014
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GW-RW0949-14
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05-12-2014
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04-05-2015
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7
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CNP for GI & Underground Ducting at Lung Mun
Road (awaiting for approval)
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22-1-2015
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-
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-
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-
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3.1.1
The major construction activities under the
Contract are land-based and no marine work will be involved. In accordance with the Project EM&A
Manual requirements, the environmental aspects under the Contract shall be included
air quality, ecological, cultural heritage, landscape and visual, landfill gas and
site inspection during construction period. In addition, 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 monitoring air quality
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 Air
Quality Monitoring Stations under the Contract
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ID
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Location
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Air monitoring station
Description
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ASR1
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Tuen Mun Fireboat Station
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EM&A Manual
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ASR5
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Pillar Point Fire Station
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EM&A Manual
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AQMS1
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Previous River Trade Golf
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Enhanced TSP Level under EP condition 2.4
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ASR6
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Butterfly Beach Laundry
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Enhanced TSP Level under EP condition 2.4
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ASR10
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Butterfly Beach Park
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Enhanced TSP Level under EP condition 2.4
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3.4.1
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.
3.4.2
The air quality monitoring requirements for
the Contract is summarized in Table 3-2.
Table
3-2 Enhanced
TSP Monitoring Plan – Construction Phase
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Condition
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Monitoring Parameter
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Monitoring Location
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Frequency
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Monitoring Requirement
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General
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1-hour TSP
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ASR1, ASR5, AQMS1, ASR6, ASR10
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3 times per day every
six days
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Throughout the
Northern Connection, toll plaza and tunnel buildings construction works
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24-hour TSP
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ASR1, ASR5, AQMS1, ASR6, ASR10
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Daily every six days
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Special
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1-hour TSP
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ASR1, ASR5, AQMS1, ASR6, ASR10
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3 times per day every
three days
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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
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24-hour TSP
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ASR1, ASR5, AQMS1, ASR6, ASR10
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Daily every three days
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3.5.1
The 24-hour and 1-hour TSP levels shall be
measured by following the standard high volume sampling method as set out in
the Title 40 of the Code of Federal
Regulations, Chapter 1 (Part 50), Appendix B.
3.5.2
The filter paper of 24-hour TSP measurement
shall be determined by HOKLAS accredited laboratory. A high volume sampler in
compliance with the following specifications shall be used for carrying out the
1-hr and 24-hr TSP monitoring:
(i)
0.6-1.7 m3/min (20-60
SCFM) adjustable flow range;
(ii)
equipped with a
timing/control device with +/- 5 minutes accuracy for 24 hours operation;
(iii)
installed with
elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
(iv)
capable of providing a
minimum exposed area of 406 cm2 (63 in2);
(v)
flow control accuracy:
+/- 2.5% deviation over 24-hr sampling period;
(vi)
equipped with a shelter
to protect the filter and sampler;
(vii) incorporated with an electronic mass flow rate controller or other
equivalent devices;
(viii) equipped with a flow recorder for continuous monitoring;
(ix)
provided with a peaked
roof inlet;
(x)
equipped with a
manometer;
(xi)
able to hold and seal
the filter paper to the sampler housing in a horizontal position;
(xii) easy to change the filter; and
(xiii) capable of operating
continuously for 24-hr period.
3.5.3
Calibration of dust monitoring equipment
shall be conducted by the ET upon installation and in bi-monthly intervals
during construction phase. The
transfer standard shall be traceable to the internationally recognized primary
standard and be calibrated annually. The calibration data shall be properly
documented for future reference by concerned parties, such as the IEC. All the
data shall be converted into standard temperature and pressure condition.
3.5.4
The filter paper of 24-hour TSP measurement
shall be determined by HOKLAS accredited laboratory.
3.5.5
If the ET proposes to use a direct reading
dust meter to measure 1-hr TSP levels on an ad hoc basis, he shall submit
sufficient information to the IEC to prove that the instrument is capable of
achieving a comparable result as that the High Volume Sampler (HVS) and may be
used for the 1-hr sampling. The
instrument should also be calibrated regularly and the 1-hr sampling shall be
checked periodically by the HVS to check the validity and accuracy of the
results measured by the direct reading method.
3.5.6
According to the Project EM&A Manual,
wind data monitoring equipment shall also be provided and set up for logging
wind speed and wind direction near the dust monitoring locations. The equipment installation location
shall be proposed by the ET and agreed with the IEC. For installation and operation of wind
data monitoring equipment, the following points shall be observed:
(i)
the wind sensors should
be installed on masts at an elevated level 10 m above ground so that they are
clear of obstructions or turbulence caused by the buildings;
(ii)
the wind data should be
captured by a data logger to be down-loaded for processing at least once a
month;
(iii)
the wind data monitoring
equipment should be re-calibrated at least once every six months; and
(iv)
wind direction should be
divided into 16 sectors of 22.5 degrees each.
3.6.1
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 Action and Limit Levels for
impact dust monitoring are shown in Tables 3-3.
Table 3-3 Action and Limit Levels for Impact Air
Quality Monitoring
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Air Quality Monitoring Stations
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24-hour TSP (μg/m3)
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1-hour TSP (μg/m3)
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Action Level
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Limit Level
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Action Level
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Limit Level
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ASR1
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213
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260
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331
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500
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ASR5
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238
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260
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340
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500
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AQMS1
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213
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260
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335
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500
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ASR6
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238
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260
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338
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500
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ASR10
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214
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260
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337
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500
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3.6.2
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
3.7.1
The TM-CLKL EIA study stated that no existing
noise sensitive receiver (NSR) was identified within the Study Area at Tuen
Mun. Therefore, no noise monitoring
is required for the construction phase of the Contract.
3.7.2
Regular site inspections and audits will be
carried out during the construction phase in order to confirm the construction
works under the Contract comply with the regulatory noise requirements.
Water Quality
3.7.3
No marine works will be undertaken under the Contract. Therefore, no water quality monitoring
is required for the construction phase of the Contract.
Ecology
3.7.4
No marine works will be undertaken under the Contract
and generated marine ecological impact, no dolphin monitoring is required for
the construction phase of the Contract.
3.7.5
During construction phase, the ET will
perform Pitcher Plants inspection at least once every week to report the growth
condition and protection measures.
Landscape and Visual
3.7.6
Measures 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 in accordance with the EM&A Manual.
Cultural Heritage
3.7.7
Grave G1 as a heritage resource 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.
Landfill Gas
3.7.8
During EIA study, landfill gas hazards are likely
to be generated from the Pillar Point Valley (PPV) Landfill. Landfill gas monitoring is recommended
during construction of the Contract to ensure the works area is free of
landfill gas before the worker entered the concerned area.
4.1.1
The air quality impact monitoring and enhanced
Total Suspended Particulates (TSP) level monitoring at five proposed locations
are currently carried out 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. The Contract is not required to conduct
its own dust monitoring exercise until the Contract HY/2012/08 ends.
4.2.1
In the Reporting Period, 1- hour and
24-hour TSP monitoring at the five proposed locations are continued to perform by
the ET of Contract HY/2012/08. Therefore,
no air quality monitoring was conducted by the ET of Contract HY/2013/12. Details information of air quality
monitoring results could be referred to the Monthly EM&A Reports of the
Contract HY /2012 /08 (November 2014, December 2014 and January 2015).
4.3.1
According to the air quality monitoring
results provided Contract HY/2012/08, no exceedances in 24-hour TSP were
recorded but a total of four (4) exceedances of 1-hour TSP were triggered in
the Reporting Period. Notification
on Exceedances (NOEs) to all relevant parties has been issued by the ET of
Contract HY/2012/08 upon the results was confirmed. The summary of air quality exceedance is
shown in Table 4-1.
Table 4-1 Summary of Air Quality Monitoring Exceedance
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Date of Exceedance
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Monitoring Station
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Air Quality Parameter
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Result
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Exceed
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14 Nov 2014
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ASR1
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1-hour
TSP
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404μg/m3
396μg/m3
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Action Level
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2 December 2014
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ASR5
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1-hour
TSP
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346μg/m3
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Action Level
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17 December 2014
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AQMS1
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1-hour
TSP
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348μg/m3
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Action Level
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4.3.2
In
this Reporting Period, no
exceedances in 24-hour TSP were recorded but a total of four (4) exceedances of
1-hour TSP were triggered in the Reporting Period. Investigation for the cause of
exceedance concluded that the exceedances were not related to the works under
the project. The investigation report for the cause of exceedance is shown in Appendix J.
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.
5.2.1
In the Reporting Period, inspections for
implementation status of mitigation measures for the Pitcher Plants were
carried out by the ET on 24th and 31st October 2014, 7th,
14th, 21st and 28th November 2014, 2nd,
9th, 17th, 23rd and 30th December
2014, 6th, 13th, 20th and 27th
January 2015.
5.2.2
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.
5.2.3
During weekly site inspection, the
transplanted Pitcher Plants at the nursery
zone were
overall in fair condition. The scaffold structure and chain link fence of
protection were implemented properly, no repair or maintenance was
required. Moreover, no construction
activities were conducted nearby the nursery zone.
5.2.4
Furthermore, random checking was undertaken
for the protected areas Zones 8, 9 and 10 during weekly site inspection. During each occasion of site inspection,
no construction activities were found to be conducted nearby the protected
areas of Pitcher Plants. The chain link fence provided at the
protected areas was properly erected.
The growths of Pitcher Plants as retained at the protected areas were in normal condition.
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 to
prevent any possible damage to the grave and to ensure the 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 case 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 the Reporting Period, site inspection for
the Grave G1 was undertaken on 24th and 31st October
2014, 7th, 14th, 21st and 28th
November 2014, 2nd, 9th, 17th, 23rd
and 30th December 2014, 6th, 13th, 20th
and 27th January 2015.
During site inspection, buffer zone between the working area
and the Grave was maintained 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
Landscpae and Visual
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 the Reporting Period, site inspection for
landscape and visual mitigation measures was undertaken on 24th and
31st October 2014, 7th, 14th, 21st
and 28th November 2014, 5th, 12th, 19th
and 24th December 2014, 2th, 9th, 16th,
23rd and 30th January 2015 by the Registered Landscape
Architect.
7.2.2
Most of the landscape works such as planting
was not yet commenced. The detailed
inspection checklists can be referred to the Monthly EM&A Reports
(November 2014, December 2014 and January 2015) of the contract.
8.1 General
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.
8.2.1
In the Reporting Period, landfill gas
monitoring was conducted at the construction of Retaining Wall B and Retaining
Wall F and the locations are illustrated in Appendix E. A BIOGAS 5000 gas
analysis was used for the landfill gas monitoring.
8.2.2
There were total 83 workings days monitoring
were carried by the Safety Officer or an approved and qualified persons in this
reporting period. Table 8-1 is summarized landfill gas
measurement results. Moreover,
graphical plot are attached in Appendix G.
Table 8-1 Summary
of Landfill Gas Measurement Results in Reporting Period
|
Landfill Gas Parameter
|
Action
Level
|
Limit
Level
|
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)
|
0%
|
0%
|
0%
|
0%
|
|
Oxygen
|
<19%
|
<18%
|
20.9%
|
21.4%
|
21.0%
|
21.3%
|
|
Carbon Dioxide
|
>0.5%
|
>1.5%
|
0.0%
|
0.3%
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0.0%
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0.3%
|
8.2.3
The measurement results shown no methane
concentration was detected and all oxygen concentration were
over 20.9% and Carbon Dioxide was between 0.0 and 0.3 %. No corrective action was required
accordingly.
9.1 General
Waste Management
9.1.1
Waste management was carried out by an
on-site Environmental Officer or an Environmental Supervisor from time to time.
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
Whenever possible, materials were reused
on-site as far as practicable. The
quantities of waste for disposal in the Reporting Period are summarized in Tables
9-1 and 9-2 and the Waste Flow Table is presented in Appendix H.
Table 9-1 Summary
of Quantities of Inert C&D Materials
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Type of Waste
|
Quantity
|
Disposal
Location
|
|
Nov 14 #
|
Dec 14
|
Jan 15
|
|
Reused in this
Project (Inert) (in '000 m3)
|
5.41
|
10.145
|
9.968
|
-
|
|
Reused in other
Projects (Inert) (in '000 m3)
|
15.061
|
16.525
|
17.144
|
HY/2012/08
|
|
Disposal as Public
Fill (Inert) (in '000 m3)
|
92.693
|
14.954
|
5.664
|
Tuen Mum Area 38
|
# The Reporting Period for
November 2014 was from 23 October to 30 November 2014.
Table 9-2 Summary
of Quantities of C&D Wastes
|
Type of Waste
|
Quantity
|
Disposal Location
|
|
Nov 14#
|
Dec 14
|
Jan 15
|
|
|
0
|
0
|
0
|
-
|
|
Recycled
Paper / Cardboard Packing (in '000kg)
|
0
|
0
|
0
|
-
|
|
Recycled
Plastic (in '000kg)
|
0
|
0
|
0
|
-
|
|
Chemical
Wastes (in '000kg)
|
0
|
0
|
0
|
-
|
|
General
Refuses (in '000m3)
|
0.016
|
0.022
|
0.02
|
WENT
|
# The Reporting Period for
November 2014 was from 23 October to 30 November 2014.
9.2.3
To control the site performance on waste management, the
Contractor shall ensure that all solid and liquid waste management works are
fully in compliance with the relevant license/permit requirements, such as the
effluent discharge license and the chemical waste producer registration. The Contractor is also reminded to
implement the recommended environmental mitigation measures according to the Environmental Monitoring and Audit
Manual.
10.1 requirements
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.
10.1.2
During
the Reporting Period, 14
events of the joint site inspections were undertaken to evaluate the site
environmental performance. The
summaries of the findings during site inspection are presented in Tables
10-1 and 10-2.
Table
10-1 Site Observations for the Contract for
the Reporting Period
|
Date
|
Findings
/ Deficiencies
|
Follow-Up
Status
|
|
28 Oct 2014
|
Ÿ
It was reminded that properly
facities should be provided for all chemical wastes and plants to prevent
land contamination.
|
Ÿ Not required for reminder.
|
|
Ÿ
It was reminded that Air quality
mitigation measures should be provide to prevent construction dust emission
during dry and windy season.
|
Ÿ Not required for reminder.
|
|
04 Nov 2014
|
Ÿ C&D
waste scattered at the site office construction area was observed. The
Contractor was should improve housekeeping on site and provide more waste
skip for waste storage.
|
Ÿ
The
deficiency has been rectified before site inspection on 19
November 2014.
|
|
Ÿ
Stockpile without any cover was
observed. The Contractor was requested to provide proper dust mitigation
measures for stockpile to minimize dust generation
|
Ÿ
The
deficiency has been rectified before site inspection on 25
November 2014.
|
|
Ÿ
It was reminded that air quality
mitigation measures should be provide to prevent construction dust emission
during dry and windy season.
|
Ÿ Not required for reminder.
|
|
11 Nov 2014
|
Ÿ
C&D material scattered at the
site office construction area was observed. Housekeeping should be improved to
maintain the site clean and tidy.
|
Ÿ
The
deficiency has been rectified in before site inspection on 19
November 2014.
|
|
Ÿ
Earth bund should be provided to
prevent muddy surface run-off discharged into the stream near the wheel
washing bay
|
Ÿ
The
deficiency has been rectified in before site inspection on 25
November 2014.
|
|
Ÿ
Residual sand and mud was
observed retain on haul road behind the wheel washing bay. The Contractor
should cleaned up the wheel washing bay regularly to make sure its effective.
|
Ÿ Stagnant water near the generator
has been cleared before site inspection on 6 January 2015.
|
|
19 Nov 2014
|
Ÿ No environmental
issue was observed
|
Ÿ NA
|
|
25 Nov 2014
|
Ÿ The Contractor was reminded that all plants
using on site shall be properly maintenance to prevent smoke emission.
|
Ÿ Not required for reminder.
|
|
Ÿ The Contractor was reminded that during the
breaking activities, dust mitigation measures should be applied to prevent
dust generation.
|
Ÿ Not required for reminder.
|
|
2 Dec 2014
|
Ÿ
Oil drums without drip tray was observed. The contractor was reminded to
provide drip tray underneath.
|
Ÿ Oil drums were removed before site
inspection on 9 December 2014.
|
|
Ÿ The panels of the compressor did not close well during operation.
To reduce noise impact, the contractor was reminded to close panels when the
compressor operation.
|
Ÿ The deficiency has been immediate followed after site inspection.
|
|
Ÿ
As a
reminder, housekeeping should be improved near the nepenthes protection zone
to maintain the protection zone or nearby area clean and tidy
|
Ÿ Not required for reminder.
|
|
9 Dec 2014
|
Ÿ Stagnant water cumulated inside
the drip tray was observed. The contractoris reminded to clean-up to prevent mosquito breeding on site.
|
Ÿ
The
deficiency has been rectified before site inspection on 17
December 2014.
|
|
Ÿ C&D waste cumulated on site
was observed. The contractor was reminded to clearn more frequency to
maintain the site clean and tidy.
|
Ÿ Construction and dismantling
waste materials were removed before site inspection on 17 December 2014.
|
|
Ÿ
Paint oils and solvent without drip tray was observed. The contractor
was reminded to provide drip tray to prevent land contamination.
|
Ÿ
Paint oils and solvent of the chemical materials were removed.
The deficiency has been rectified on 17 December 2014 before site inspection.
|
|
Ÿ
As a
reminder, dust mitigation measure should be provided at the stockpile storage
area to minimize dust generation.
|
Ÿ Not required for reminder.
|
|
17 Dec 2014
|
Ÿ
Dusty haul road was observed, the contractor was reminded increase the
water spraying frequency to minimize dust generation.
|
Ÿ
During site inspection on 23 December 2014, water spray was observed to
on the haul road.
|
|
Ÿ C&D waste cumulated on site
was observed. The contractor was reminded to clearn more frequency to
maintain the site clean and tidy.
|
Ÿ Construction and dismantling
waste materials were removed before site inspection on 23 December 2014.
|
|
Ÿ
As a
reminder, dust mitigation measure should be applied during rock breaking or
excavating works to reduce dust generation
|
Ÿ Not required for reminder.
|
|
Ÿ As a reminder, the contractor should follow the
VEP requirement for the nepenthes
nursery area.
|
Ÿ Not required for reminder.
|
|
23 Dec 2014
|
Ÿ Dust emitted from rock drilling
works near Lun Mun Road was observed. The contractor was reminded to provide
water spraying minimize dust generation.
|
Ÿ No drilling works and dust emission was
observed.
|
|
Ÿ
The felled tree and debris cumulated on site was observed. The
contractor was reminded increase disposal frequency.
|
Ÿ Felled trees and debris were cleared.
|
|
Ÿ Debris was observed to cumulate
inside the u-channel. The contractor was reminded to clean-up to maintain the
site drainage system.
|
Ÿ Debris cumulated inside the u-channel was
cleared.
|
|
30 Dec 2014
|
Ÿ Waste skips of general refuse disposal was
filled, the contractor was reminded to
clean-up in accordance with WMP requirements.
|
Ÿ The
waste skips has been cleared before site inspection on 13 January
2015.
|
|
Ÿ As a
reminder, during the dry season, the contractor was reminded to implement
water spraying for drilling / breaking / excavating activities to reduce dust
generation.
|
Ÿ Not required for reminder.
|
|
6 Jan 2015
|
Ÿ
Waste
skips of general refuse disposal was full, the contractor was reminded to clean-up in accordance
with WMP requirements.
|
Ÿ The
waste skips has been cleared before site inspection on 13 January
2015,
|
|
Ÿ Oil leakage from the backhoe was
observed. The contractor was requested to clean up a.s.a.p. to prevent
contamination.
|
Ÿ The oil leakage has been cleaned immediate after site inspection. No oil leakage from the backhoe was observed on 13 January 2015.
|
|
13 Jan 2015
|
Ÿ Muddy water was observed in the
u-channel. The contractor was requested to be treated the water before
discharge to the public drain.
|
Ÿ
The muddy water in the u-channle has been removed during weekly site inspection
on 20 January 2015.
|
|
Ÿ Stagnant water was cumulated
inside the drip tray after rain. The contractor reminded to clean the water.
|
Ÿ Stagnant water cumulated in the
drip tray has been removed during site inspection on 27
January 2015,
|
|
20 Jan 2015
|
Ÿ
Dust emitted from drilling / rock breaking / excavating activities was
observed. The contractor was reminded to provide mitigation measures to
reduce dust generation from those activities.
|
Ÿ
Water spraying during dusty work was obrseved duirng site inspecion on
27 January 2015.
|
|
Ÿ
Waste
skips of general refuse disposal was full, the contractor was reminded to clean-up more
frequenctly.
|
Ÿ The
waste skips has been cleared before site inspection on 27 January
2015,
|
|
Ÿ Sediment was observed in the Wetsep treatment system. The contractor was reminded clean-up
the residual regularly to maintain treatment system is in good condition.
|
Ÿ The sediment in the Wetsep
treatment system has been cleared
before site inspection on 27 January 2015.
|
|
27 Jan2015
|
Ÿ As a reminder, water spraying is required
for dusty work during dry season to minimize dust generation.
|
Ÿ Not required for reminder.
|
|
Ÿ As a reminder, the contractor was reminded
to maintain the cut off drain properly to prevent muddy water flow to the
public area.
|
Ÿ Not required for reminder.
|
|
Ÿ As a reminder, stagnant water cumulated
inside the u-channel and manhole should be drained away to prevent mosquito
breeding.
|
Ÿ Not required for reminder.
|
Table 10-2 Summary of Reminders/Observations
of Site Inspection
|
Reporting Period
|
Date of site inspection
|
Nos. of findings / reminders
|
Follow-Up Status
|
|
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
|
10.1.3
In the
Reporting Period, no non-compliance was recorded,
however, 36 observations/ reminders were
recorded during the site inspections.
Minor deficiencies found
in the weekly site inspection were in general rectified within the specified
deadlines. The environmental
performance of the Project was therefore considered satisfactory.
11.1
Environmental Complaint, Summons and Prosecution
11.1.1 For the
Contract, no environmental complaint, summons and prosecution was received in
the Reporting Period. However,
there were 4 exceedances of the environmental performance limit (Action and
Limit Level). 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
|
Frequency
|
Cumulative
|
|
23 October 2014 –
31 January 2015
|
1-hr TSP
|
Action
|
4
|
0
|
4
|
0
|
|
Limit
|
0
|
0
|
0
|
0
|
|
24-hr TSP
|
Action
|
0
|
0
|
0
|
0
|
|
Limit
|
0
|
0
|
0
|
0
|
Table 11-2 Statistical
Summary of Environmental Complaints
|
Reporting Period
|
Environmental Complaint Statistics
|
|
Frequency
|
Cumulative
|
Complaint Nature
|
|
23 October 2014 –
31 January 2015
|
0
|
0
|
NA
|
Table
11-3 Statistical
Summary of Environmental Summons
|
Reporting Period
|
Environmental Complaint Statistics
|
|
Frequency
|
Cumulative
|
Complaint Nature
|
|
23 October 2014 –
31 January 2015
|
0
|
0
|
NA
|
Table
11-4 Statistical
Summary of Environmental Prosecution
|
Reporting Period
|
Environmental Complaint Statistics
|
|
Frequency
|
Cumulative
|
Complaint Nature
|
|
23 October 2014 –
31 January 2015
|
0
|
0
|
NA
|
11.1.2
In the Reporting Period, a warning letter was issued from EPD on 2 December 2014 regarding uncovered
dump trucks.
12.1 General
Requirements
12.1.1
The environmental mitigation measures that
recommended in the Environmental Mitigation and Enhancement Measures
Implementation Schedule (EMIS) for in the Project EM&A Manual covered the
issues of air quality, cultural heritage, ecology, landfill gas hazard, landscape & visual,
noise, water and waste. The
updated EMIS for the Contract is shown in Appendix I.
12.1.2
The Contractor shall implement the required
environmental mitigation measures according to the EM&A Manual as subject
to the site condition. The environmental mitigation measures implemented by the
Contract in this Reporting Period are summarized in Table 12-1 and Appendix I.
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 Conclusions
13.1.1 This is 1st Quarterly EM&A
report presenting the monitoring results and inspection findings for the
Reporting Period from 23 October 2014 to 31 January 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 if the existing condition compliance with the
intended aims of the mitigation measures.
Most of the landscape works such as planting was not yet commenced.
13.1.5 Site
inspection was performed for the transplanted Pitcher Plants in the nursery
site and protected Zones 8 to 10.
The transplanted Pitcher Plant in nursery site was protected by the
scaffold structure which surrounded by chain link fencing and the protected
Pitcher Plants in Zones 8 to 10 were fenced off by chain link fencing. The condition of the transplanted
pitcher plant was in fair condition.
No construction activities were found to conduct nearby the nursery site
and protection zones.
13.1.6 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.
13.1.7
No documented a complaint, notification of
summons or successful prosecution is received by the Contract.
13.1.8
During
the Reporting Period, 14
events of the joint site inspections were undertaken to evaluate the site
environmental performance. No adverse environmental impacts were
observed during the weekly site inspection and environmental audit of the
Reporting Period, indicating the implemented mitigation measures for air
quality, construction noise and water quality were effective. Minor deficiencies found in the weekly
site inspection were in general rectified within the specified deadlines. The environmental performance of the
Project was therefore considered satisfactory.
13.1.9
No documented a complaint, notification of
summons or successful prosecution is received by the Contract.
13.2.1 During dry
season, special attention should be paid on the potential construction dust
impact. The Contractor should fully
implement the construction dust mitigation measures such as watering of site area for 12 times per day and
covering of exposed slopes should be provided to reduce construction dust
impact as recommended in the EMIS.
13.2.2
Water
quality mitigation measures such as prevention of muddy water and other water
quality pollutants via site surface water
runoff get into public area should be avoided.
13.2.3
It was reminded
that good housekeeping practice should be maintained. Mosquito control measures should be
properly implemented to prevent mosquito breeding on site.