1.1.1. Civil Engineering and Development Department is the Project Proponent and the Permit Holder of Agreement No. CE 45/2008 (CE)
Liantang / Heung Yuen Wai Boundary Control Point and Associated Works, which is
a Designated Project to be implemented under Environmental Permit number EP-404/2011/A issued on 28 October
2013.
1.1.2. The Project consists of two main
components: Construction of a Boundary Control Point (hereinafter referred as
“BCP”); and Construction of a connecting road alignment. Layout plan of the Project is shown in Appendix A.
1.1.3. The proposed BCP is located at the
boundary with Shenzhen near the existing Chuk Yuen Village, comprising a main
passenger building with passenger and cargo processing facilities and the
associated customs, transport and ancillary facilities. The connecting road alignment consists of
six main sections:
1)
Lin Ma Hang to Frontier Closed Area (FCA) Boundary – this section
comprises at-grade and viaducts and includes the improvement works at Lin Ma
Hang Road;
2)
Ping Yeung to Wo Keng
Shan – this section stretches from the Frontier Closed Area Boundary to the
tunnel portal at Cheung Shan and comprises at-grade and viaducts including an
interchange at Ping Yeung;
3)
North Tunnel – this section comprises the tunnel segment at Cheung Shan
and includes a ventilation building at the portals on either end of the tunnel;
4)
Sha Tau Kok Road – this section stretches from the tunnel portal at Wo Keng Shan to the tunnel portal
south of Loi Tung and comprises at-grade and viaducts including an interchange
at Sha Tau Kok and an administration building;
5)
South Tunnel – this section comprises a tunnel segment that stretches from
Loi Tung to Fanling and includes a ventilation building at the portals on
either end of the tunnel as well as a ventilation building in the middle of the
tunnel near Lau Shui Heung;
6)
Fanling – this section comprises the at-grade, viaducts and interchange
connection to the existing Fanling Highway.
1.1.4.
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.
1.1.5.
This is the 2nd Quarterly
EM&A Summary Report for the “Liantang/Heung Yuen Wai Boundary
Control Point and Associated Works” under Environmental Permit No. EP-404/2011/A, covering the period from 1 November 2013 to 31 January 2014.
1.2.1
The Monthly Environmental Monitoring and
Audit (EM&A) Report is structured into the following sections:-
Section 1 Introduction
Section 2 Project Organization and
Construction progress
Section 3 Summary of Impact monitoring Requirements
Section 4 Air Quality Monitoring
Section 5 Construction Noise
Monitoring
Section 6 Water Quality Monitoring
Section 7 Waste Management
Section 8 Non-compliance, Complaints,
Notifications of Summons and Successful Prosecutions
Section 9 Implementation Status of Mitigation Measures
Section 10 Conclusions and Recommendations
2.1.1
To facilitate the project management and implementation,
the Project would be divided by the following contracts:
·
Contract 2 (CV/2012/08)
·
Contract 3 (CV/2012/09)
·
Contract 4 (TCSS)
·
Contract 5 (CV/2013/03)
·
Contract 6 (CV/2013/08)
2.1.2
The
details of each contracts is summarized below and the delineation of each contracts is shown in Appendix A.
Contract 2 (CV/2012/08)
2.1.3
Contract 2 has awarded in December 2013. Date of contract works commencement has yet to decide.
Major Scope of Work of the Contract 2 is
listed below:
·
construction of
an approximately 5.2km long dual two-lane connecting road (with about 0.4km of
at-grade road and 4.8km of tunnel) connecting the Fanling Interchange with the
proposed Sha Tau Kok Interchange;
·
construction of a
ventilation adit tunnel and the mid-ventilation
building;
·
construction of
the north and south portal buildings of the Lung Shan Tunnel and their
associated slope works;
·
provision and
installation of ventilation system, E&M works and building services works
for Lung Shan tunnel and Cheung Shan tunnel and their portal buildings;
·
construction of
Tunnel Administration Building adjacent to Wo Keng Shan Road and the associated E&M and building
services works; and
·
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 3 (CV/2012/09)
2.1.4
Contract 3 was awarded in July 2013 and
construction work was commenced on 5 November 2013. Major Scope of Work of the Contract 3 is
listed below:
·
construction of
four link roads connecting the existing Fanling Highway and the south portal of
the Lung Shan Tunnel;
·
realignment of
the existing Tai Wo Service Road West and Tai Wo Service Road East;
·
widening of the
existing Fanling Highway (HyD’s
entrustment works);
·
demolishing
existing Kiu Tau vehicular bridge and Kiu Tau footbridge and reconstruction of the existing Kiu Tau Footbridge (HyD’s
entrustment works); and
·
construction of associated
footpath, slopes, retaining structures, drainage, sewerage, waterworks,
landscaping works and other ancillary works.
Contract 4 (Contract number to be
assigned)
2.1.5
Contract 4 has not yet awarded. The work of the Contract 4 includes provision and installation of
Traffic Control and Surveillance System and the associated electrical and
mechanical works for the Project.
Contract 5 (CV/2013/03)
2.1.6
Contract 5 has awarded in April 2013 and
construction work was commenced in August 2013. Major Scope of Work of the Contract 5 is
listed below:
·
site formation of about 23
hectares of land for the development of the BCP;
·
construction of an
approximately 1.6 km long perimeter road at the BCP including a 175m long
depressed road;
·
associated
diversion/modification works at existing local roads and junctions including
Lin Ma Hang Road;
·
construction of pedestrian
subway linking the BCP to Lin Ma Hang Road;
·
provision of resite area with supporting infrastructure for reprovisioning of the affected village houses; and
·
construction of associated footpath, slopes, retaining structures, drainage,
sewerage, waterworks, landscaping works and other ancillary works.
Contract 6 (CV/2013/08)
2.1.7
Contract 6 has not yet awarded. Major Scope of Work of the Contract 6
will be included below:
Ÿ construction of an approximately 4.6km long dual two-lane connecting
road (with about 0.6km of at-grade road, 3.3km of viaduct and 0.7km of tunnel)
connecting the BCP with the proposed Sha Tau Kok Road Interchange and the
associated ventilation buildings;
Ÿ associated diversion/modification works at access roads to the resite of Chuk Yuen Village;
Ÿ provision of sewage collection, treatment and disposal facilities for
the BCP and the resite of Chuk
Yuen Village;
Ÿ construction of a pedestrian subway linking the BCP to Lin Ma Hang
Road;
Ÿ provisioning of the affected facilities including Wo
Keng Shan Road garden; and
Ÿ construction of associated footpath, slopes, retaining
structures, drainage, sewerage, waterworks, landscaping works and other
ancillary works.
2.2.1
The project organization is shown in Appendix B. The responsibilities of respective parties are:
Civil
Engineering and Development Department (CEDD)
2.2.2
CEDD is the Project Proponent and the Permit Holder of the EP of the development
of the Project and will assume overall responsibility for the project. An
Independent Environmental Checker (IEC) shall be employed by CEDD to audit the
results of the EM&A works carried out by the ET.
Environmental
Protection Department (EPD)
2.2.3
EPD is the statutory enforcement body for
environmental protection matters in Hong Kong.
Engineer
or Engineers Representative (ER)
2.2.4
The ER is responsible for overseeing the
construction works and for ensuring that the works are undertaken by the
Contractor in accordance with the specification and contract requirements. The
duties and responsibilities of the ER with respect to EM&A are:
·
Monitor the Contractors’ compliance with
contract specifications, including the implementation and operation of the
environmental mitigation measures and their effectiveness
·
Monitor Contractors’s,
ET’s and IEC’s compliance with the requirements in the Environmental Permit
(EP) and EM&A Manual
·
Facilitate ET’s implementation of the
EM&A programme
·
Participate in joint site inspection by the
ET and IEC
·
Oversee the implementation of the agreed
Event / Action Plan in the event of any exceedance
·
Adhere to the procedures for carrying out
complaint investigation
·
Liaison with DSD, Engineer/Engineer’s
Representative, ET, IEC and the Contractor of the “Construction of the DSD’s Regulaiton of Shenzhen River Stage 4 (RSR 4)” Project
discussing regarding the cumulative impact issues.
The
Contractor(s)
2.2.5
There will be one contractor for each
individual works contract. The
Contractor(s) should report to the ER. The duties and responsibilities of the
Contractor are:
·
Comply with the relevant contract conditions
and specifications on environmental protection
·
Employ an Environmental Team (ET) to
undertake monitoring, laboratory analysis and reporting of EM &A Facilitate
ET’s monitoring and site inspection activities
·
Participate in the site inspections by the ET
and IEC, and undertake any corrective actions
·
Provide information / advice to the ET
regarding works programme and activities which may contribute to the generation
of adverse environmental impacts
·
Submit proposals on mitigation measures in
case of exceedances of Action and Limit levels in accordance with the Event /
Action Plans
·
Implement measures to reduce impact where
Action and Limit levels are exceeded
·
Adhere to the procedures for carrying out
complaint investigation
Environmental Team (ET)
2.2.6
One ET will be employed for this Project. The ET shall not be in any way an
associated body of the Contractor(s), and shall be employed by the Project
Proponent/Contractor to conduct the EM&A programme. The ET should be managed by the ET
Leader. The ET Leader shall be a person who has at least 7 years’ experience in
EM&A and has relevant professional qualifications. Suitably qualified staff
should be included in the ET, and resources for the implementation of the
EM&A programme should be allocated in time under the Contract(s), to enable
fulfillment of the Project’s EM&A requirements as specified in the EM&A
Manual during construction of the Project. The ET shall report to the Project
Proponent and the duties shall include:
·
Monitor and audit various environmental
parameters as required in this EM&A Manual
·
Analyse the
environmental monitoring and audit data, review the success of EM&A
programme and the adequacy of mitigation measures implemented, confirm the
validity of the EIA predictions and identify any adverse environmental impacts
arising
·
Carry out regular site inspection to
investigate and audit the Contractors’ site practice, equipment/plant and work
methodologies with respect to pollution control and environmental mitigation,
and effect proactive action to pre-empt problems
·
Monitor compliance with conditions in the EP,
environmental protection, pollution prevention and control regulations and
contract specifications
·
Audit environmental conditions on site
·
Report on the environmental monitoring and audit
results to EPD, the ER, the lEC and Contractor(s) or their delegated representatives
·
Recommend suitable mitigation measures to the
Contractor in the case of exceedance of Action and Limit levels in accordance
with the Event and Action Plans
·
Liaise with the IEC on all environmental
performance matters and timely submit all relevant EM&A proforma
for approval by IEC
·
Advise the Contractor(s) on environmental
improvement, awareness, enhancement measures etc., on site
·
Adhere to the procedures for carrying out
complaint investigation
·
Liaison with the client departments,
Engineer/Engineer’s Representative, ET, lEC and the
Contractor(s) of the concurrent projects as listed under Section 2.3 below
regarding the cumulative impact issues.
Independent Environmental Checker (IEC)
2.2.7
One IEC will be employed for this Project. The Independent Environmental Checker
(IEC) should not be in any way an associated body of the Contractor(s) or the
ET for the Project. The IEC should
be employed by the Permit Holder (i.e., CEDD) prior to
the commencement of the construction of the Project. The IEC should have at least 10 years’
experience in EM&A and have relevant professional qualifications. The duty of IEC should be:
·
Provide proactive advice to the ER and the
Project Proponent on EM&A matters related to the project, independent from
the management of construction works, but empowered to audit the environmental
performance of construction
·
Review and audit all aspects of the EM&A
programme implemented by the ET
·
Review and verify the monitoring data and all
submissions in connection with the EP and EM&A Manual submitted by the ET
·
Arrange and conduct regular, at least monthly
site inspections of the works during construction phase, and ad hoc inspections
if significant environmental problems are identified
·
Check compliance with the agreed Event /
Action Plan in the event of any exceedance
·
Check compliance with the procedures for
carrying out complaint investigation
·
Check the effectiveness of corrective
measures
·
Feedback audit results to ET by signing off
relevant EM&A proforma
·
Check that the mitigation measures are
effectively implemented
·
Report the works conducted, the findings,
recommendation and improvement of the site inspections, after reviewing ET’s
and Contractor’s works, and advices to the ER and Project Proponent on a
monthly basis
·
Liaison with the client departments,
Engineer/Engineer’s Representative, ET, lEC and the
Contractor(s) of the concurrent projects as listed under Section 2.3 below
regarding the cumulative impact issues.
2.3.1
The concurrent construction works that may be
carried out include, but not limited to, the following:
(a)
Regulation of Shenzhen River Stage IV
(Environmental Permit EP-430/2011);
(b)
Building works and road works by contractors
of ArchSD (Environmental Permit EP-404/2011);
(c)
Widening of Fanling Highway – Tai Hang to Wo Hop Shek Interchange – Contract No. HY/2012/06;
(d)
Construction of cross-boundary vehicular and
pedestrian bridges (total 5 numbers) across the Shenzhen River; and
(e)
Construction of BCP
facilities in Shenzhen.
2.4.1
In the Reporting Period, the major
construction activity conducted under the Project is located in Contract 3 and Contract
5. They are summarized in
below. Moreover, the master
construction program of the Contract 5 is enclosed in Appendix C.
Contract
2 (CV/2012/08)
Ÿ
Contract 2 has awarded in December 2013. Date of contract works commencement has yet to decide.
So, no construction activities were undertaken.
Contract
3 (CV/2012/09)
Ÿ
Contract commenced in November 2013, the
following activities were conducted in the Reporting Period.
-
Cable detection and
trail trenches
-
Tree Felling Works
-
Trial Pit Excavation
-
Pre-drilling works and
piling works
-
Extension of box culvert
-
Bored pile wall construction
-
Erection of site office
-
Construction of haul road and temporary soil
platform for geotechnical works
Contract
4 (Contract number to be assigned)
Ÿ
The contract has not yet awarded.
Contract
5 (CV/2013/03)
Ÿ
Contract awarded in April 2013 and commenced
in August 2013, the following activities were conducted in the Reporting
Period.
-
Remaining works at RS1
& RS3;
-
Construction of
Retaining Wall No.1;
-
Construction of
temporary bridge B;
-
Construction of Village
Houses at RS4;
-
Construction of 3rd
wheel washing bay;
-
Western Lift shaft’s
piling works;
-
Geotechnical
investigation and monitoring works;
-
Transplanting, Pruning/felling
of existing trees;
-
Demolition of
structures/ additional works at Loi Tung;
-
Formation works at BCP
Area;
-
Construction of Depressed Road at BCP3;
-
Underground utilities
detection;
-
Environmental impact
monitoring;
-
Demolition works at
former ArchSD office;
-
Filing works in ArcHD
permanent office;
-
Archaeological Survey at
Section T1;
-
Photographic and
Cartographic Records of graves and well under EP; and
-
Liaise with various
utility undertaker and villagers / Village representatives
-
Piling works at life shaft, Bridge J &
footbridge;
-
Construction of pedestrian subway and pump
room at LMH;
-
Pipe jacking across Kong Yuen River; and
-
Drainage and Sewerage works at LMH Road
Contract
6 (CV/2013/08)
Ÿ
The contract is still yet awarded
2.5
Summary of Environmental Submissions
2.5.1
In according to the EP, the required documents
have submitted to EPD for retention which listed in below:
Ÿ
Project Layout Plans of Contracts 3 and 5
Ÿ
Landscape Plan
Ÿ
Topsoil Management Plan
Ÿ
Environmental Monitoring and Audit Programme
Ÿ
Baseline Monitoring Report (TCS00690/13/600/R0030v3) for the Project
Ÿ
Waste Management Plan of the Contracts 3 and
5
2.5.2
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
|
Item
|
Description
|
License/Permit
Status
|
|
Contract 3
|
Contract 5
|
Contract 2, 4 & 6
|
|
1
|
Air
pollution Control (Construction Dust) Regulation
|
Ref. No: 362101
Notification received by EPD on 17
Jul 2013
|
Ref. No: 359338
Notified EPD on
13 May 2013
|
--
|
|
2
|
Chemical Waste Producer Registration - Waste Producers
Number
|
No.:5113-634-C3817-01
Valid form 7 Oct 2013 till the end of Contract
|
No.:
5213-642-S3735-01
Valid form 8 Jun
2013 till the end of Contract
|
--
|
|
3
|
Water Pollution Control Ordinance - Discharge
License
|
No.:WT00016832 –
2013
Valid from 28
Aug 13 to 31 Aug 2018
|
No.: W5/1G44/1
Valid from 8 Jun
13 to 30 Jun 2018
|
--
|
|
4
|
Waste Disposal Regulation - Billing Account
for Disposal of Construction Waste
|
Account No. 7017914
Valid form 2 Aug
13 till the end of Contract
|
Account No. 7017351
Valid form 29
Apr 13 till the end of Contract
|
--
|
|
5
|
Construction Noise Permit
|
GW-RN0747-13
Valid on 4 Dec 13 till 19 Jan 14
|
NA
|
--
|
|
GW-RN0004-14
Valid on 7 Jan 14 till 22 Jun 2014
|
3.1.1
The Environmental Monitoring and Audit
requirements are set out in the Approved EM&A manual. Environmental issues
such as air quality, construction noise and water quality were identified as
the key issues during the construction phase of the Project.
3.1.2
A summary of construction phase EM&A
requirements are presented in the
sub-sections below.
3.2.1
The EM&A program of construction phase
monitoring shall cover the following environmental issues:
•
Air quality;
•
Construction noise; and
•
Water quality
3.2.2
A summary of the monitoring parameters is
presented in Table 3-1.
Table 3-1 Summary
of EM&A Requirements
|
Environmental
Issue
|
Parameters
|
|
Air
Quality
|
Ÿ 1-hour
TSP by Real-Time Portable Dust Meter; and
Ÿ 24-hour
TSP by High Volume Air Sampler.
|
|
Noise
|
Ÿ Leq(30min) in normal working days (Monday to
Saturday) 07:00-19:00 except public holiday; and
Ÿ 3 sets
of consecutive Leq(5min) on
restricted hours i.e. 19:00 to 07:00 next day, and whole day of public
holiday or Sunday
Ÿ Supplementary
information for data auditing, statistical results such as L10 and
L90 shall also be obtained for reference.
|
|
Water
Quality
|
In-situ Measurements
Ÿ Dissolved
Oxygen Concentration (mg/L);
Ÿ Dissolved
Oxygen Saturation (% );
Ÿ Turbidity
(NTU);
Ÿ pH unit;
Ÿ Water
depth (m); and
Ÿ Temperature
(℃).
|
|
Laboratory Analysis
Ÿ Suspended
Solids (mg/L)
|
3.3.1
The designated monitoring locations as
recommended in the EM&A Manual
are shown in Appendix D.
As the access to some of the designated monitoring locations was
questionable due to safety reason or denied by the landlords, alternative
locations therefore have had proposed. The proposed alternative monitoring
locations has updated in the revised EM&A Programme which verified by IEC
and certified by ET Leader prior submitted to EPD on 10 July 2013. Table 3-2, Table 3-3 and Table
3-4 are respectively listed the air quality, construction noise and
water quality monitoring locations for the Project and a map showing these
monitoring stations is presented in Appendix E.
Table
3-2 Impact
Monitoring Stations - Air Quality
|
Station ID
|
Description
|
Works Area
|
Related to the Work Contract
|
|
AM1
|
Tsung Yuen Ha Village House No. 63
|
BCP
|
Contract 5
|
|
AM2
|
Village House near Lin Ma Hang
Road
|
LMH to Frontier Closed Area
|
Contract 5,
Contract 6
|
|
AM3
|
Ta Kwu Ling Fire Service Station
of Ta Kwu Ling Village.
|
LMH to Frontier Closed Area
|
Contract 5,
Contract 6
|
|
AM4a
|
A village house located at about 160m east side of the original point AM4
|
LMH to Frontier Closed Area
|
Contract 6
|
|
AM5
|
Ping Yeung Village House
|
Ping Yeung to Wo
Keng Shan
|
Contract 6
|
|
AM6
|
Wo Keng Shan Village House
|
Ping Yeung to Wo
Keng Shan
|
Contract 6
|
|
AM7a
|
Another village (nameless) aligns to Sha Tau Kok Road – Wo Hang Section proximity to Tai Tong Wu Village.
The location is about 140m away from the original point AM7
|
Sha Tau Kok Road
|
Contract 2
|
|
AM8
|
Po Kat Tsai Village No. 4
|
Po Kat Tsai
|
Contract 2
|
|
AM9b
|
Nam Wa
Po Village House No. 80
|
Fanling
|
Contract 3
|
Table
3-3 Impact
Monitoring Stations - Construction Noise
|
Station ID
|
Description
|
Works Area
|
Related to the Work Contract
|
|
NM1
|
Tsung Yuen Ha Village House
No. 63
|
BCP
|
Contract 5
|
|
NM2
|
Village House near Lin Ma Hang Road
|
Lin Ma Hang to Frontier Closed Area
|
Contract 5,
Contract 6
|
|
NM3
|
Ping Yeung Village House (facade facing northeast)
|
Ping Yeung to Wo Keng Shan
|
Contract 6
|
|
NM4
|
Wo Keng
Shan Village House
|
Ping Yeung to Wo Keng Shan
|
Contract 6
|
|
NM5
|
Village House, Loi Tung
|
Sha Tau Kok Road
|
Contract 2,
Contract 6
|
|
NM6
|
Tai Tong Wu Village House 2
|
Sha Tau Kok Rpad
|
Contract 2,
Contract 6
|
|
NM7
|
Po Kat Tsai Village
|
Po Kat Tsai
|
Contract 2
|
|
NM8
|
Village House, Tong Hang
|
Fanling
|
Contract 2
Contract 3
|
|
NM9
|
Village House, Kiu Tau
Village
|
Fanling
|
Contract 3
|
|
NM10
|
Nam Wa Po Village House No.
78
|
Fanling
|
Contract 3
|
Table
3-4 Impact
Monitoring Stations - Water Quality
|
Station ID
|
Description
|
Designated / Alternative Location
|
Nature of the location
|
Related to the Work Contract
|
|
Coordinates
|
|
Easting
|
Northing
|
|
WM1
|
Downstream of Kong Yiu
Channel
|
833679
|
845421
|
Alternative location
located at upstream 51m of the designated location
|
Contract 5
|
|
WM1-Control
|
Upstream of Kong Yiu
Channel
|
834185
|
845917
|
NA
|
Contract 5
|
|
WM2A
|
Downstream of River
Ganges
|
834204
|
844471
|
Alternative location
located at downstream 81m of the designated location
|
Contract 6
|
|
WM2A-Control
|
Upstream of River
Ganges
|
835270
|
844243
|
Alternative location
located at upstream 78m of the designated location
|
Contract 6
|
|
WM2B
|
Downstream of River
Ganges
|
835433
|
843397
|
NA
|
Contract 6
|
|
WM2B-Control
|
Upstream of River
Ganges
|
835835
|
843351
|
Alternative location
located at downstream 31m of the designated location
|
Contract 6
|
|
WM3
|
Downstream of River
Indus
|
836324
|
842407
|
NA
|
Contract 6
|
|
WM3-Control
|
Upstream of River
Indus
|
836763
|
842400
|
Alternative location
located at downstream 26m of the designated location
|
Contract 6
|
|
WM4
|
Downstream of Ma Wat Channel
|
833850
|
838338
|
Alternative location
located at upstream 11m of the designated location
|
Contract 3
|
|
WM4–Control A
|
Kau Lung Hang Stream
|
834028
|
837695
|
Alternative location
located at downstream 28m of the designated location
|
Contract 3
|
|
WM4–Control B
|
Upstream of Ma Wat Channel
|
833760
|
837395
|
Alternative location
located at upstream 15m of the designated location
|
Contract 3
|
3.4.1
The requirements of
impact monitoring are stipulated in Sections
2.1.6, 3.1.5 and 4.1.6 of the
approved EM&A Manual and
presented as follows.
Air Quality Monitoring
3.4.2
Frequency of impact
air quality monitoring is as follows:
|
Ÿ
1-hour TSP
|
3 times every six
days during course of works
|
|
Ÿ
24-hour TSP
|
Once every 6 days during course of works.
|
Noise Monitoring
3.4.3
One set of Leq(30min)
as 6 consecutive Leq(5min)
between 0700-1900 hours on normal weekdays and once every week during course of works. If construction work necessary to carry
out at other time periods, i.e. restricted time period (19:00 to 07:00 the next
morning and whole day on public holidays) (hereinafter referred as “the
restricted hours”), 3 consecutive Leq(5min) measurement will depended CNP requirements to
undertake. Supplementary information for data auditing, statistical results such as
L10 and L90 shall also be obtained for reference.
Water Quality Monitoring
3.4.4
The water quality monitoring frequency shall
be 3 days per week during course of works.
The interval between two sets of monitoring shall not be less than 36
hours.
Air Quality Monitoring
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. If the ET proposes to use a direct
reading dust meter to measure 1-hour TSP levels, it shall submit sufficient
information to the IEC to approve.
3.5.2
The filter paper of 24-hour TSP measurement shall be determined by HOKLAS
accredited laboratory.
3.5.3
All equipment to be used for air quality
monitoring is listed in Table 3-5.
Table 3-5 Air
Quality Monitoring Equipment
|
Equipment
|
Model
|
|
24-Hr
TSP
|
|
High
Volume Air Sampler
|
TISCH
High Volume Air Sampler, HVS Model TE-5170
|
|
Calibration
Kit
|
TISCH
Model TE-5025A
|
|
1-Hour TSP
|
|
Portable Dust Meter
|
Sibata LD-3B Laser Dust monitor Particle Mass
Profiler & Counter
|
Wind Data
Monitoring Equipment
3.5.4
According to the approved 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:
1)
The wind sensors should be installed 10 m
above ground so that they are clear of obstructions or turbulence caused by
buildings.
2)
The wind data should be captured by a data
logger. The data shall be downloaded for analysis at least once a month.
3)
The wind data monitoring equipment should be
re-calibrated at least once every six months.
4)
Wind direction should be divided into 16
sectors of 22.5 degrees each.
3.5.5
ET has liaised with the landlords of the
successful granted HVS installation premises. However, the owners rejected to provide
premises for wind data monitoring equipment installation.
3.5.6
Under this situation, the ET proposed
alternative methods to obtain representative wind data. Meteorological information as extracted
from “the Hong Kong Observatory Ta Kwu Ling Station” is alternative method to
obtain representative wind data.
For Ta Kwu Ling Station, it is located nearby the Project site. Moreover, this station is located at 15m
above mean sea level while its anemometer is located at 13m above the existing
ground which in compliance with the general setting up requirement. Furthermore, this station also can be to
provide the humidity, rainfall, and air pressure and temperature etc.
meteorological information. In Hong
Kong of a lot development projects, weather information extracted from Hong
Kong Observatory is common alternative method if weather station installation
not allowed.
Noise Monitoring
3.5.7
Sound level meter in compliance with the
International Electrotechnical Commission
Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be
used for carrying out the noise monitoring. The sound level meter shall be checked
using an acoustic calibrator. The
wind speed shall be checked with a portable wind speed meter capable of
measuring the wind speed in m s-1.
3.5.8
Noise monitoring equipment to be used for
monitoring is listed in Table 3-6.
Table 3-6 Construction
Noise Monitoring Equipment
|
Equipment
|
Model
|
|
Integrating Sound Level Meter
|
B&K
Type 2238 or Rion NL-14 or Rion
NL-31
|
|
Calibrator
|
B&K
Type 4231
|
|
Portable Wind Speed Indicator
|
Testo Anemometer
|
3.5.9
Sound level meters listed above comply with
the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications, as recommended in TM issued
under the NCO. The acoustic
calibrator and sound level meter to be used in the impact monitoring will be
calibrated yearly.
Water Quality Monitoring
3.5.10 DO and water temperature should be measured in-situ by a DO/temperature
meter. The instrument should be portable and weatherproof using a DC power source.
It should have a membrane electrode
with automatic temperature compensation complete with a cable. The equipment
should be capable of measuring:
•
DO level in the range of 0-20 mg/l and 0-200%
saturation; and
•
temperature of between 0 and 45 degree Celsius.
3.5.11 A portable pH meter capable of measuring a range between 0.0 and 14.0
should be provided to measure pH under the specified conditions accordingly to
the APHA Standard Methods.
3.5.12 The instrument should be portable and weatherproof using a DC power
source. It should have a photoelectric sensor capable of measuring turbidity
between 0-1000 NTU.
3.5.13 A portable,
battery-operated echo sounder or tape measure will be used for the
determination of water depth at each designated monitoring station as
appropriate.
3.5.14 A water
sampler e.g. Kahlsico Water Sampler, which is a
transparent PVC cylinder with capacity not less than 2 litres, will be used for
water sampling if water depth over than 0.5m. For sampling from very shallow
water depths e.g. <0.5 m, water sample collection will be directly from
water surface below 100mm use sampling plastic bottle to avoid inclusion of
bottom sediment or humus. Moreover,
Teflon/stainless steel bailer or self-made sampling buckets maybe used for
water sampling. The equipment used
for sampling will be depended the sampling location and depth situations.
3.5.15 Water
samples for laboratory measurement of SS will be collected in high density
polythene bottles, packed in ice (cooled to 4 ºC without being frozen), and
delivered to the laboratory in the same day as the samples were collected.
3.5.16 Analysis
of suspended solids should be carried out in a HOKLAS or other accredited
laboratory. Water samples of about 1L should be collected at the monitoring
stations for carrying out the laboratory suspended solids determination. The SS determination work should start
within 24 hours after collection of the water samples. The SS analyses should
follow the APHA Standard Methods 2540D
with Limit of Reporting of 2 mg/L.
3.5.17 Water
quality monitoring equipment used in the impact monitoring is listed in Table
3-7. Suspended solids (SS) analysis is
carried out by a local HOKLAS-accredited laboratory, namely ALS Technichem
(HK) Pty Ltd.
Table 3-7 Water
Quality Monitoring Equipment
|
Equipment
|
Model
|
|
Water Depth Detector
|
Eagle Sonar or tape
measures
|
|
Water
Sampler
|
A
2-litre transparent PVC cylinder with latex cups at both ends or teflon/stainless steel bailer or self-made sampling
bucket
|
|
Thermometer
& DO meter
|
YSI PRO20 Handheld Dissolved Oxygen Instrument
|
|
pH meter
|
The EcoSense ® pH10A pen-style instrument
|
|
Turbidimeter
|
Hach 2100Q
|
|
Sample
Container
|
High
density polythene bottles (provided by laboratory)
|
|
Storage Container
|
‘Willow’ 33-liter plastic cool box with Ice
pad
|
1-hour TSP Monitoring
3.6.1
The 1-hour TSP monitor was a brand named “Sibata LD-3B Laser Dust monitor Particle Mass Profiler
& Counter” which is a portable, battery-operated laser photometer. The 1-hour TSP meter provides a real
time 1-hour TSP measurement based on 90o light scattering. The 1-hour TSP monitor consists of the
following:
(a.)
A pump to draw sample aerosol through the
optic chamber where TSP is measured;
(b.)
A sheath air system to isolate the aerosol in
the chamber to keep the optics clean for maximum reliability; and
(c.)
A built-in data logger compatible with
Windows based program to facilitate data collection, analysis and reporting.
3.6.2
The 1-hour TSP meter is used within the valid
period as follow manufacturer’s Operation and Service Manual.
24-hour TSP Monitoring
3.6.3
The equipment used for 24-hour TSP
measurement is Thermo Andersen Model GS2310 TSP high volume air sampling
system, which complied with EPA Code of
Federal Regulation, Appendix B to Part 50. The High Volume Air Sampler
(HVS) consists of the following:
(a.)
An anodized aluminum shelter;
(b.)
A 8”x10” stainless steel filter holder;
(c.)
A blower motor assembly;
(d.)
A continuous flow/pressure recorder;
(e.)
A motor speed-voltage control/elapsed time
indicator;
(f.)
A 7-day mechanical timer, and
(g.)
A power supply of 220v/50 Hz
3.6.4
The HVS is operated and calibrated on a
regular basis in accordance with the manufacturer’s instruction using Tisch Calibration Kit Model TE-5025A. Calibration would carry out in two month
interval.
3.6.5
24-hour TSP is collected by the ET on filters
of HVS and quantified by a local HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd (ALS), upon receipt of the
samples. The ET keep all the
sampled 24-hour TSP filters in normal air conditioned room conditions, i.e. 70%
RH (Relative Humidity) and 25oC, for six months prior to disposal.
Noise Monitoring
3.6.6
Noise measurements were taken in terms of the
A-weighted equivalent sound pressure level (Leq)
measured in decibels dB(A). Supplementary statistical
results (L10 and L90) were also obtained for reference.
3.6.7
During
the monitoring, all noise measurements were performed with the meter set to
FAST response and on the A-weighted equivalent continuous sound pressure level
(Leq). Leq(30min)
in six consecutive Leq(5min) measurements
were used as the monitoring parameter for the time period between 0700-1900
hours on weekdays; and also Leq(15min) in
three consecutive Leq(5min) measurements
is used as monitoring parameter for other time periods (e.g. during restricted
hours), if necessary.
3.6.8
Prior
of noise measurement, the accuracy of the sound level meter is checked using an
acoustic calibrator generating a known sound pressure level at a known
frequency. The checking was
performed before and after the noise measurement.
Water Quality
3.6.9
Water
quality monitoring is conducted at the designated locations. The sampling
produce with the in-situ monitoring are presented as below:
Sampling Procedure
3.6.10 A Digital Global Positioning System (GPS) is used to identify the
designated monitoring stations prior to water sampling. A portable, battery-operated echo
sounder is used for the determination of water depth at each station. At each station, water sample would be
collected from 0.1m below water surface or the water surface to prevent the
river bed sediment for stirring.
3.6.11 The sample
container will be rinsed with a portion of the water sample. The water sample then will be
transferred to the high-density polythene
bottles as provided by the laboratory, labeled with a unique sample
number and sealed with a screw cap.
3.6.12 Before
sampling, general information such as the date and time of sampling, weather
condition as well as the personnel responsible for the monitoring would be
recorded on the field data sheet.
3.6.13 A ‘Willow’
33-liter plastic cool box packed with ice will be used to preserve the water
samples prior to arrival at the laboratory for chemical determination. The water temperature of the cool box is
maintained at a temperature as close to 40C as possible without
being frozen. Samples collected are
delivered to the laboratory upon collection.
In-situ Measurement
3.6.14 YSI PRO20
Handheld Dissolved Oxygen Instrument
is used for water in-situ measures, which automates the measurements and
data logging of temperature, dissolved oxygen and dissolved oxygen
saturation. Before each round of monitoring, the dissolved oxygen probe would be
calibrated by the wet bulb method.
3.6.15 A portable EcoSense ®
pH10A pen-style instrument is used for in-situ
pH measurement. The pH meter is
capable of measuring pH in the range of 0 – 14 and readable to 0.1.
3.6.16 A portable Hach 2100Q Turbidimeter is used for in-situ
turbidity measurement. The turbidity meter is capable of measuring turbidity in
the range of 0 – 1000 NTU. StablCal®
Standards of known NTU are used for calibration of the
instrument before and after measurement.
3.6.17 All
in-situ measurement equipment are calibrated by HOKLAS
accredited laboratory of three month interval.
Laboratory Analysis
3.6.18 All water samples are analyzed
with Suspended Solids (SS) as specified in the
EM&A Manual by a local HOKLAS-accredited testing laboratory (ALS Technichem (HK) Pty Ltd HOKLAS registration no. 66).
SS analysis is
determined by the laboratory upon receipt of the water samples using APHA Standard Methods 2540D (namely ALS Method EA-025 as
accredited HOKLAS Scheme) started within 48
hours of water sample receipt.
3.7.1
Calibration of the HVS is performed upon
installation and thereafter at bimonthly intervals in accordance with the
manufacturer’s instruction using the certified standard calibrator (TISCH Model
TE-5025A).
Moreover, the Calibration Kit would be
calibrated annually. The calibration data are properly documented and the
records are maintained by ET for future reference.
3.7.2
The 1-hour TSP
meter was calibrated by the supplier prior to purchase. Zero response of the equipment would be
checked before and after each monitoring event. Annually calibration with the High
Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.
3.7.3
The sound level
meter and calibrator are calibrated and certified by a laboratory accredited
under HOKLAS or any other international accreditation scheme at yearly basis.
3.7.4
All water quality monitoring equipment is
calibrated by HOKLAS accredited laboratory of three month intervals.
3.7.5
The calibration certificates of all
monitoring equipment used for the impact monitoring program in the Reporting
Period and the HOKLAS accredited certificate of laboratory are presented in
the relevant monthly EM&A reports.
3.8.1
The baseline results form the basis for
determining the environmental acceptance criteria for the impact monitoring. According to the approved Environmental
Monitoring and Audit Manual, the air quality, construction noise and water
quality criteria were set up, namely Action and Limit levels are listed in Tables
3-8, 3-9 and 3-10.
Table 3-8 Action and Limit Levels for Air Quality
Monitoring
|
Monitoring Station
|
Action Level (mg /m3)
|
Limit Level (mg/m3)
|
|
1-hour TSP
|
24-hour TSP
|
1-hour TSP
|
24-hour TSP
|
|
AM1
|
265
|
143
|
500
|
260
|
|
AM2
|
268
|
149
|
|
AM3
|
269
|
145
|
|
AM4a
|
267
|
148
|
|
AM5
|
268
|
143
|
|
AM6
|
269
|
148
|
|
AM7a
|
275
|
156
|
|
A |
