1.1.1 The
engineering feasibility study of the Anderson Road Quarry Development has been
conducted under the Agreement No. CE18/2012 (CE) “Development of Anderson Road
Quarry - Investigation” (the FS) to ascertain the feasibility of implementing
the development proposal. The FS was classified as a designated project under
the Schedule 3 of the Environmental Impact Assessment Ordinance (EIAO). Hence,
as a part of the study, an environmental impact assessment (EIA) report titled
"Development of Anderson Road Quarry" has been submitted and approved
under the EIAO (Register: AEIAR-183/2014) on 28 July 2014.
Road improvement schemes for existing roads outside the Anderson Road
Quarry Development were proposed in the FS to improve the future traffic
condition and to cater for the additional traffic demand at the ARQ
Development. In this connection, there
were three associated off-site road improvement works identified as the
Schedule 2 designated projects under Item A.1 Part I of the Schedule 2 of the
EIAO.
1.1.2 The approved Schedule 3 EIA Report of the FS had already reviewed
the potential environmental impacts of the proposed three road improvement
works and concluded that no insurmountable environmental impacts are expected
from the road improvement works Nevertheless,
detailed environmental implications of the proposed road improvement works will
be further investigated in a separate EIA under the EIAO.
1.1.3 Subsequently,
in accordance with the requirements of Section 5(1) of the EIAO, a project
profile (No. PP-500/2014) for the “Development of Anderson Road Quarry Site – Road
Improvement Works” (the Project) was submitted to the Director of Environmental
Protection (the “DEP”) for application for an EIA Study Brief on 27 January
2014. Pursuant to Section 5(7)(a) of the EIAO, the DEP
has issued a Study Brief (No.: ESB-268/2014) dated 10 March 2014 for the EIA
study.
1.1.4 The
purpose of the EIA study is to provide information on the nature and extent of
environmental impacts arising from the construction and operation of the
Project and associated works that will take place concurrently. This
information will contribute to decisions by the Director on:
Ÿ The overall acceptability of any adverse
environmental consequences that are likely to arise as a result of the Project;
Ÿ The conditions and requirements for the
detailed design, construction and operation of the Project to mitigate against
adverse environmental consequences wherever practicable; and
Ÿ The acceptability of residual impacts after
the proposed mitigation measures are implemented.
1.1.5 This Project comprises three road improvement works: (i) improvement
of Sau Mau Ping Road and Lin Tak Road (ii) widening and improvement of sections
of Clear Water Bay Road and On Sau Road; and (iii) widening and improvement of sections
of New Clear Water Bay Road and Shun Lee Tsuen Road. The extents of the road
improvement works are shown in Figure 1.1.
1.2.1 The following is a summary of the proposed improvement schemes:
Junction
of (J/O) Sau Mau Ping Road and Lin Tak Road
a.
Additional Lay-bys at Lin Tak Road
1.2.2 Details of the proposed works are as follows:
Ÿ
Lengthening of existing lay-bys from 12m and 18m to
70m and addition of 2 new lay-bys of 26m long at Lin Tak Road;
Ÿ Realignment of
Lin Tak Road towards south so as to allow space for the provision of lay-bys as
mentioned above which is very close to the lot boundary of
Hong Wah Court and Hing Tin Estate.
Ÿ
Enlargement of existing roundabout at the J/O Lin Tak Road and Pik Wan Road to allow for smooth turning of long vehicle,
but still maintaining the existing one entry lane and one circulating lane
configuration.
Ÿ
Cutting of slopeworks at
the south side of Lin Tak Road to allow space for the provision of lay-bys and
road re-alignment.
b.
Westbound flyover from Lin Tak Road to Sau Mau Ping Road
1.2.3 Details of the proposed works are as follows:
Ÿ
Widening of small section of slip road towards Tseung
Kwan O Road eastbound with associated slope works for retaining walls.
Ÿ
Construction of a new westbound flyover from Sau Mau
Ping Road to Lin Tak Road leading to a free flow condition for turning movement from
Sau Mau Ping Road eastbound and Lin Tak Road westbound to Tseung Kwan O Road
slip road, as well as straight movement of Lin Tak Road eastbound and
westbound.
·
Tseung
Kwan O Road slip road to Sau Mau Ping Road will be shifted southwards with
associated slope works to cater
for the proposed flyover.
1.2.4 The key element
of this proposed
work is to
construct a new
vehicular flyover connecting Lin Tak Road and Sau Mau Ping Road and
across Tseung Kwan O Road.
J/O Clear
Water Bay Road and On Sau Road and J/O Clear Water Bay Road and New Clear Water
Bay Road
1.2.5 The scope of the proposed works includes improvement works on Clear
Water Bay Road and detouring right-turn movement from On Sau Road northbound
onto Clear Water Bay Road eastbound by construction of a new U-turn facility
with minimization of cutting of existing trees on slopes.
1.2.6 The key element of the proposed works is to construct a new U-turn
facility on the westbound carriageway of Clear Water Bay Road.
J/O
New Clear Water Bay Road and Shun Lee Tsuen Road
1.2.7 The scope of the proposed works is to widen a section of 130m long
of the existing New
Clear Water Bay Road westbound carriageway opposite to Shun Lee
Estate from one lane to two lanes, and to construct a new Shun Lee Tsuen Road
slip road (about 350m) and a merging lane (about 170m) extending from the
existing Shun Lee Tsuen Road and merging to the westbound carriage way of the
New Clear Water Bay Road and with associated slope works for retaining walls.
1.2.8 As
revealed by the traffic review, the existing single 2 lanes road configuration
of Lin Tak Road is capable of handling the prevailing as well as the future
traffic flow upon completion of the Anderson Road Quarry Site Development.
Therefore, it is considered unnecessary to widen Lin Tak Road and so the single
2 lanes road capacity of Lin Tak Road will remain unchanged. Instead, the works
originally proposed for Lin Tak Road will be scaled down to the construction of
4 numbers of lay-bys and associated road re-alignment to allow for roadside
loading and unloading activities. No additional traffic will be induced due to
the change.
1.2.9 It is anticipated that for works at J/O Clear Water Bay Road and On
Sau Road and J/O Clear Water Bay Road and New Clear Water Bay Road, as well as
New Clear Water Bay Road and Shun Lee Tsuen Road, construction works would be
commenced by end 2016. The construction period is 3.5 years, and the tentative
completion year is 2020. Besides, the construction works at Sau Mau Ping Road
and Lin Tak Road would be started in end 2016 with the estimated construction
period of 5 years, and the tentative completion year is 2022. Details of the
tentative construction programme are shown in Appendix A. Nonetheless,
it should be noted that the aforementioned programme, including the
commencement and completion dates, is tentative and subject to review.
1.3.1 The purpose of this Environmental Monitoring and Audit (EM&A)
Manual is to guide the set-up of an EM&A programme to check on compliance
with the Environmental Impact Assessment (EIA) study recommendations of the
Project, to assess the effectiveness of the recommend mitigation measures, to
specify the environmental monitoring requirements including monitoring points,
frequency and establishment of Event and Action Plan and to identify any
further need for additional mitigation measures or remedial actions.
1.3.2 This EM&A Manual aims to provide systematic procedures for
monitoring, auditing and minimizing environmental impacts associated with the
activities of the Project. It outlines the monitoring and audit programme for
the Project.
1.3.3 Hong Kong environmental regulations have served as environmental
standards and guidelines in the preparation of this Manual. In addition, the
EM&A Manual has been prepared in accordance with the requirement stipulated
in Annex 21 of the Technical memorandum on Environmental Impact Assessment
Process (EIAO-TM).
1.3.4 This Manual contains the following information:
·
Responsibilities
of the Contractor, the Engineer or Engineer’s Representative (ER), the
Environmental Team (ET), and the Independent Environmental Checker (IEC) with
respect to the environmental monitoring and audit requirements during the
course of the Project;
·
Project
organisation for the Project;
·
Requirements
with respect to the construction programme schedule and the necessary
environmental monitoring and audit programme to track the varying environmental
impact;
·
Details
of the methodologies to be adopted, including all field laboratories and
analytical procedures, and details on quality assurance and quality control
programme;
·
The
rationale on which the environmental monitoring data will be evaluated and
interpreted;
·
Definition
of Action and Limit levels;
·
Establishment
of Event and Action Plans;
·
Requirements
for reviewing pollution sources and working procedures required in the event of
non-compliance with the environmental criteria and complaints;
·
Requirements
for presentation of environmental monitoring and audit data and appropriate reporting
procedures; and
·
Requirements
for reviewing the EIA predictions and the effectiveness of the mitigation
measures / environmental management systems and the EM&A programme.
1.3.5 This EM&A Manual is a dynamic document that should be reviewed
regularly and updated as necessary during the construction and operation of the
Project.
1.4.1 The roles and responsibilities of the various parties involved in
the EM&A process and the organisational structure
of the organisations responsible for implementing the EM&A programme are
outlined below. The proposed project organisation and lines of communication
with respect to environmental protection works are shown in Figure 1.2.
Environmental
Team (ET)
1.4.2 The Environmental Team should be led and managed by the ET leader.
The ET leader shall be independent party from the Contractor and has relevant
professional qualifications, or have sufficient relevant EM&A experience
subject to approval of the ER and EPD. The ET Leader shall have at least 7
years of experience in conducting EM&A for infrastructure projects. His /
Her qualification shall be vetted by the ER. The ET should monitor the
mitigation measures implemented by the Contractor on regular basis to ensure
the compliance with the intended aims of the measures. The duties and
responsibilities of the ET are:
Ÿ Set up all the required environmental monitoring stations;
Ÿ Monitor various environmental parameters as required in the EM&A
Manual;
Ÿ Analyse the EM&A data and review the success of EM&A
programme to cost-effectively confirm the adequacy of mitigation measures
implemented and the validity of the EIA predictions and to identify any adverse
environmental impacts arising;
Ÿ Carry out site inspection and investigate and audit the Contractors’
site practice, equipment and work methodologies with respect to pollution
control and environmental mitigation, and take proactive actions to pre-empt
problems;
Ÿ Liaison with IEC on all environmental performance matters, and
timely submission of all relevant EM&A proforma
for IEC’s approval;
Ÿ Prepare reports on the environmental monitoring data and site
environmental conditions;
Ÿ Report on the EM&A results to the IEC. Contractor, the ER and
EPD or tis delegated representative;
Ÿ 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;
Ÿ Give advice to the Contractor on environmental improvement,
awareness, enhancement matters, etc. on site;
Ÿ Undertake regular and ad-hoc on-site audits / inspections and report
to the Contractor and the ER of any potential non-compliance;
Ÿ Follow up and close out non-compliance actions, and
Ÿ Adhere to the procedures for carrying out environmental complaint
investigation.
Engineer or Engineer’s Representative (ER)
1.4.3 The Engineer is responsible for overseeing the construction works
and for ensuring that the works are undertaken by the Contractor in accordance
with the specification and contractual requirements. The duties and
responsibilities of the Engineer with respect to EM&A include:
·
Supervise
the Contractor’s activities and ensure that the requirements in the EM&A
Manual are fully complied with;
·
Inform and
instruct the Contractor when action is required to reduce environmental impacts
in accordance with the Event and Action Plans;
·
Participate
in joint site inspections and audits undertaken by the ET; and
·
Investigate
complaints according to the agreed procedures and instruct the Contractor to
follow up.
The
Contractor
1.4.4 The Contractor should report to the ER. The duties and
responsibilities of the Contractor are:
·
Implement
the EIA recommendations and requirements;
·
Engage
the ET to carry out EM&A works and notify the ET construction activities
that may have environmental concern;
·
Submit
proposals on mitigation measures in case of exceedances of Action and Limit
levels, in accordance with the Event and Action Plans;
·
Implement
measures to reduce environmental impacts where Action and Limit levels are
exceeded until the events are resolved; and
·
Investigate
complaints according to the agreed procedures.
Independent
Environmental Checker (IEC)
1.4.5 The IEC should advise the ER on environmental issues related to the
Project. The IEC should possess at least 7 years of experience in EM&A. The
duties and responsibilities of the IEC are:
·
Review
and audit in an independent, objective and professional manner in all aspects
of the EM&A programme;
·
Validate
and confirm the accuracy of monitoring results, monitoring equipment,
monitoring locations, monitoring procedures and locations of sensitive
receivers;
·
Audit the
EIA recommendations and requirements against the status of implementation of
environmental protection measures on site;
·
Review
the effectiveness of environmental mitigation measures and project
environmental performance;
·
On
as-needed basis, verify and certify the environmental acceptability of the
Environmental Permit (EP) holder’s construction methodology, relevant design
plans and submissions under the EP;
·
Carry out
random sample check and audit on monitoring data and sampling procedures, etc.;
·
Conduct monthly
and random site inspection;
·
Verify
the investigation results of environmental complaint cases and the
effectiveness of corrective measures;
·
Verify
EM&A report that has been certified by the ET leader; and
·
Provide
feedback on the audit results to the ET or the EP holder according to the Event
and Action Plans in the EM&A Manual.
1.5.1 Following the introductory section, the remainder of the Manual is
set out as follows:
·
Section 2
– Sets out EM&A requirement for air quality;
·
Section 3
– Sets out EM&A requirement for noise;
·
Section 4
– Details auditing requirement for water quality;
·
Section 5
– Sets out EM&A requirement for waste management;
·
Section 6
– Details auditing requirement for land contamination;
·
Section 7
– Details auditing requirement for ecology (terrestrial);
·
Section 8
– Details auditing requirement for landscape and visual;
·
Section 9
– Details auditing requirement for landfill gas hazard;
·
Section
10 – Describes scope and frequency of environmental site audits and sets out
the general requirements of the EM&A programme; and
·
Section
11 – Details the EM&A reporting requirements.
2.1.1 In this section, the requirements, methodology, equipment,
monitoring locations, criteria and protocols for the monitoring and audit of
air quality impact during the construction phase of the Project are presented.
As identified in the EIA report, the Project would not cause any adverse
operation air quality impacts. Therefore, environmental monitoring and audit is
not required during the operational phase.
2.1.2 The objectives of the air quality monitoring shall be:
·
to
identify the extent of construction dust impact on sensitive receivers;
·
to
determine the effectiveness of mitigation measures to control fugitive dust
emission from activities during the construction phase;
·
to audit
the compliance of the Contractor with regard to dust control, contract
conditions and the relevant dust impact criteria;
·
to recommend
further mitigation measures if found to be necessary; and
·
to comply
with Action and Limit (A/L) Levels for air quality as defined in this Manual.
2.2.1 The major construction activities of the Project would likely be demolition
of existing structures, slope works, construction of retaining walls,
carriageway/pavement construction and foundation works for noise barriers which
would generate insignificant amount of small size particulates, hence, no
significant Respirable Suspended Particulates (RSP) or Fine Suspended
Particulates (FSP) impacts would be anticipated. Monitoring of 24-hour RSP and 24-hour FSP
levels are not proposed. Therefore, only
1-hour Total Suspended Particulates (TSP) is recommended to be monitored and
audited at the proposed monitoring locations.
2.2.2
The criteria against which
ambient air quality monitoring to be assessed are:
·
1-hour
TSP limit of 500 µg m-3
2.2.3 This level is not to be exceeded at Air Sensitive Receivers (ASRs).
2.2.4 Monitoring and audit of the TSP levels at each RIW site shall be
carried out by the ET to ensure that any deteriorating air quality could be
readily detected and timely action shall be undertaken to rectify such
situation.
2.2.5 1-hour TSP levels should be
measured to indicate the impacts of construction dust on air quality. The TSP levels should be measured by
following the standard method as set out in High Volume Sampling Method for
Total Suspended Particulates, Part 50 Chapter 1 Appendix B, Title 40 of the Code
of Federal Regulations of the USEPA (hereinafter referred to as “HVS
method”). Upon approval of EPD and IEC,
an alternative sampling method of using direct reading methods for which the monitoring result is comparable with the high
volume sampling method can be used.
2.2.6 All relevant data including temperature, pressure, weather
conditions, elapsed-time meter reading for the start and stop of the sampler,
identification and weight of the filter paper, other local atmospheric factors
affecting or affected by site conditions and work progress of the concerned
site etc. shall be recorded in detail. A sample data record sheet is shown in Appendix
B.
2.3.1 High volume sampler (HVS) in compliance with the following
specifications shall be used for carrying out the 1-hour TSP monitoring:
·
0.6 - 1.7
m3 per minute (20 - 60 standard cubic feet per minute) adjustable
flow range;
·
equipped
with a timing / control device with ± 5 minutes accuracy for 24 hours
operation;
·
installed
with elapsed-time meter with ± 2 minutes accuracy for 24 hours operation;
·
capable
of providing a minimum exposed area of 406 cm2 ;
·
flow
control accuracy: ± 2.5% deviation over 24-hour sampling period;
·
equipped
with a shelter to protect the filter and sampler;
·
incorporated
with an electronic mass flow rate controller or other equivalent devices;
·
equipped
with a flow recorder for continuous monitoring;
·
provided
with a peaked roof inlet;
·
incorporated
with a manometer;
·
able to
hold and seal the filter paper to the sampler housing at horizontal position;
·
equip
with easy changeable filter; and
·
capable of
operating continuously for 24-hour period.
2.3.2 The ET shall be responsible for the provision of the monitoring
equipment. He shall ensure that sufficient number of HVSs with appropriate
calibration kit is available for carrying out the baseline, regular impacts
monitoring and ad-hoc monitoring. The HVSs shall be equipped with an electronic
mass flow controller and be calibrated against a traceable standard at regular
intervals, in accordance with requirements stated in the manufacturers
operating manual. All the equipment,
calibration kit, filter papers, etc., shall be clearly labelled. If direct reading dust meters are
proposed to be used, the ET Leader should submit sufficient information to the
IEC to prove that of the monitoring result of the instrument is comparable with
the HVS and may be used for the 1-hour sampling. The instrument should also be calibrated
regularly.
2.3.3 Initial calibration of the dust monitoring equipment shall be
conducted upon installation and prior to commissioning at bi-monthly intervals.
The transfer standard shall be traceable to the internationally recognised
primary standard and be calibrated annually. The calibration data shall be
properly documented for future reference by the concerned parties such as the
IEC. All the data shall be converted into standard temperature and pressure
condition.
2.3.4 The flow-rate of the sampler before and after the sampling exercise
with the filter in position shall be verified to be constant and be recorded on
the data sheet as shown in Appendix B.
2.3.5 If the ET Leader proposes to use a direct reading dust meter to
measure 1-hour TSP levels, he shall submit sufficient information to the IEC to
prove that the instrument is capable of achieving a comparable result as that
of the HVS before it may be used for the 1-hour sampling. The instrument shall
also be calibrated regularly, and the 1-hour sampling shall be determined
periodically by HVS to check the validity and accuracy of the results measured
by direct reading method.
2.3.6 Wind data monitoring equipment shall also be provided and set up at
conspicuous locations for logging wind speed and wind direction near to the
dust monitoring locations. The equipment installation location shall be
proposed by the ET and agreed with the ER of the respective RIW and the IEC.
For installation and operation of wind data monitoring equipment, the following
points shall be observed:
(i) The wind sensors shall be installed on masts at an elevated
level 10m above ground so that they are clear of obstructions or turbulence
caused by the buildings;
(ii) The wind data shall be captured by a
data logger. The data recorded in the data logger shall be downloaded periodically
for analysis at least once a month;
(iii) The wind data monitoring equipment shall
be re-calibrated at least once every six months;
(iv) Wind
direction should be divided into 16 sectors of 22.5 degrees each.
2.3.7 In exceptional situations, the ET may propose alternative methods to
obtain representative wind data upon approval from the ER and agreement from
the IEC.
2.4.1 A clean laboratory with constant temperature and humidity control
and equipped with necessary measuring and conditioning instruments to handle
the dust samples collected, shall be available for sample analysis, and
equipment calibration and maintenance. The laboratory shall be HOKLAS
accredited or other internationally accredited laboratory.
2.4.2 If a site laboratory is set up or a non-HOKLAS accredited laboratory
is hired for carrying out the laboratory analysis, the laboratory equipment
shall be verified by the IEC and approved by the ER. Measurement performed by
the laboratory shall be demonstrated to the satisfaction of the ER and the IEC.
2.4.3 The IEC shall conduct regular audit of the measurement performed by
the laboratory so as to ensure the accuracy of measurement results. The ET
shall provide the ER with one copy of the Title 40 of the Code of Federal
Regulations, Chapter 1 (Part 50), Appendix B for his/her reference.
2.4.4 Filter paper of size 8"x10" shall be labelled before
sampling. It shall be a clean filter paper with no pinholes, and shall be
conditioned in a humidity-controlled chamber for over 24-hour and be
pre-weighed before use for the sampling.
2.4.5 After sampling, the filter paper loaded with dust shall be kept in a
clean and tightly sealed plastic bag. The filter paper shall then be returned
to the laboratory for reconditioning in the humidity-controlled chamber
followed by accurate weighing by an electronic balance with readout down to
0.1mg. The balance shall be regularly calibrated against a traceable standard.
2.4.6 All the collected samples shall be kept in a good condition for 6
months before disposal.
2.5.1 The selected monitoring locations are the worst potentially affected
air sensitive receivers located in the vicinity of construction sites of the
Project. The proposed air quality monitoring locations are listed in Table
2.1below and shown in Figures 2.1 and 2.2.
Table 2.1 Proposed Air Quality Monitoring
Stations
|
Monitoring Station ID
|
EIA ID
|
Location
|
|
NCWBR RIW
|
|
NCWBR_AMS-1
|
ASLF-1
|
Shun Lee Fire Station
|
|
NCWBR_AMS-2
|
ASLE-21
|
Shun Lee Estate Lee Hang House
|
|
NCWBR_AMS-3
|
ASLD-10
|
Shun Lee Disciplined Services Quarters (Block 6)
|
|
NCWBR_AMS-4
|
AFNS-3
|
Sienna Garden
|
|
NCWBR_AMS-5
|
ASCC-05
|
Shun Chi Court Shun Fung House
|
|
LTR RIW
|
|
LTR_AMS-1
|
ASECP-2
|
St Edward's Catholic Primary School
|
|
LTR_AMS-2
|
AEPD-01
|
Environmental Protection Department's Restored Landfill Site Office
|
|
LTR_AMS-3
|
APTE-14
|
Po Tat
Estate Tat Kai House
|
2.5.2
The status and locations of the
air quality sensitive receivers may change after issuing this Manual. In such
case, the ET shall propose updated monitoring locations and seek approval from
ER and IEC and agreement from EPD on the proposal.
2.5.3 When alternative monitoring locations are proposed, the following
criteria, as far as practicable, shall be followed:
(i) at the site boundary or such
locations close to the major dust emission source;
(ii)
close to the air sensitive
receivers as defined in the EIAO-TM;
(iii) proper
position/sitting and orientation of the monitoring equipment; and
(iv) take into
account the prevailing meteorological conditions.
2.5.4 The ET shall agree with the IEC on the position of the HVS for
installation of the monitoring equipment. When positioning the samplers, the
following points shall be noted:
(i) a horizontal platform with
appropriate support to secure the samplers against gusty wind shall be
provided;
(ii) two samplers
shall be placed less than 2 metres apart;
(iii) the distance
between the sampler and an obstacle, such as buildings, must be at least twice
the height that the obstacle protrudes above the sampler;
(iv) a minimum of 2
metres of separation from walls, parapets and penthouses is required for
rooftop samplers;
(v) a minimum of 2 metres of separation
from any supporting structure, measured horizontally is required;
(vi) no furnace or incinerator flue is
nearby;
(vii) airflow around
the sampler is unrestricted;
(viii) the sampler is
more than 20 metres from the dripline;
(ix) any wire fence
and gate, to protect the sampler, shall not cause any obstruction during
monitoring;
(x) permission must be obtained to set up
the samplers and to obtain access to the monitoring stations; and
(xi) a secured supply
of electricity is needed to operate the samplers.
2.6.1 Before commencing the baseline monitoring, the ET shall inform the
IEC of the baseline monitoring programme such that the IEC can conduct on-site
audit to ensure accuracy of the baseline monitoring results.
2.6.2 TSP baseline monitoring should be carried out at all of the
designated monitoring locations for at least 14 consecutive days prior to the
commissioning of the construction works. 1-hour TSP sampling shall be done at
least three times per day at each monitoring station when the highest dust
impacts are expected. During the
baseline monitoring, there should not be any construction or dust generating
activities in the vicinity of the monitoring stations. General meteorological
conditions (wind speed, direction and precipitation) and notes regarding any
significant adjacent dust producing sources should also be recorded throughout
the baseline monitoring period. A
summary of baseline monitoring is presented in Table 2.2.
2.6.3 In case the baseline monitoring cannot be carried out at the
designated monitoring locations during the baseline monitoring period, the ET
Leader shall carry out the monitoring at alternative locations which can
effectively represent the baseline conditions at the impact monitoring
locations. The alternative baseline monitoring location shall be approved by
the ER and agreed with IEC.
2.6.4 In exceptional cases, when insufficient baseline monitoring data or
questionable results are obtained, the ET Leader shall liaise with the IEC and
EPD to agree on an appropriate set of data to be used as a baseline reference
and submit to ER for approval.
2.6.5 Ambient conditions may vary seasonally and shall be reviewed once
every three months. When the ambient conditions have changed and a repeat of
the baseline monitoring is required to be carried out for obtaining the updated
baseline levels, the monitoring should be at times when the Contractor's
activities are not generating dust, at least in the proximity of the monitoring
stations. Should change in ambient conditions be determined, the baseline
levels and, in turn, the air quality criteria, should be revised. The revised
baseline levels and air quality criteria should be agreed with the IEC and EPD.
2.7.1 The ET shall carry out impact monitoring during construction phase
of the Project. For 1-hour TSP monitoring, the sampling frequency of at least
three times in every six-days should be undertaken when the highest dust impact
occurs. In case of non-compliance with the air criteria, more frequent
monitoring, as specified in the Action Plan in the following section, should be
conducted. This additional monitoring should be continued until the excessive
dust emission or the deterioration in the air quality is rectified. The impact
monitoring programme is summarised in Table 2.2.
2.7.2 The monthly schedule of the compliance and impact monitoring
programme should be drawn up by the ET one month prior to the commencement of
the scheduled construction period. Before commencing the impact monitoring, the
ET shall inform the IEC of the impact monitoring programme such that the IEC
can conduct on-site audit to ensure accuracy of the impact monitoring results.
Table 2.2 Summary of Construction Dust
Monitoring Programme
2.8
Event and Action Plan
2.8.1 The baseline monitoring results will form 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 1-hour TSP. Table
2.3 shows the air quality criteria, namely Action and Limit levels to be
used. Should non-compliance of the air quality criteria occur, action in
accordance with the Action Plan in Table 2.4 shall be carried out.
Table
2.3 Action
and Limit Levels for Air Quality (Dust)
|
Parameter
|
Action Level(1)
|
Limit Level
|
|
TSP (1 hour average)
|
BL <= 384 µgm-3,
AL = (BL * 1.3 + LL)/2
BL > 384 µgm-3,
AL = LL
|
500 µgm-3
|
Note:
(1)
BL = Baseline level, AL = Action level, LL = Limit level.
Table 2.4 Event and Action Plan for Air
Quality (Dust)
|
Event
|
Action
|
|
ET
|
IEC
|
ER
|
Contractor
|
|
Action level being exceeded by
one sampling
|
·
Identify source, investigate the causes of complaint
and propose remedial measures;
·
Inform Contractor, IEC and ER;
·
Repeat measurement to confirm finding;
·
Increase monitoring frequency to daily.
|
·
Check monitoring data submitted by ET;
·
Check Contractor’s working method; and
·
Review and advise the ET and ER on the effectiveness
of the proposed remedial measures.
|
·
Notify Contractor.
|
·
Identify source(s), investigate the causes of
exceedance and propose remedial measures;
·
Implement remedial measures; and
·
Amend working methods agreed with the ER as
appropriate
|
|
Action level being exceeded by
two or more consecutive sampling
|
·
Identify source;
·
Inform Contractor, IEC and ER;
·
Advise the Contractor and ER on the effectiveness of
the proposed remedial measures;
·
Repeat measurements to confirm findings;
·
Increase monitoring frequency to daily;
·
Discuss with IEC and Contractor on remedial actions
required;
·
If exceedance continues, arrange meeting with
Contractor, IEC and ER;
·
If exceedance stops, cease additional monitoring.
|
·
Check monitoring data submitted by ET;
·
Check Contractor’s working method;
·
Discuss with ET, ER and Contractor on possible
remedial measures;
·
Advise the ET and ER on the effectiveness of the
proposed remedial measures;
·
Supervise Implementation of remedial measures.
|
·
Confirm receipt of notification of exceedance in
writing;
·
Notify Contractor;
·
Ensure remedial measures properly implemented.
·
If exceedance continues, consider what portion of
the work is responsible and instruct the Contractor to stop that portion of
work until the exceedance is abated.
|
·
Identify source and investigate the causes of
exceedance;
·
Submit proposals for remedial measures to the ER
with a copy to ET and IEC within three working days of notification;
·
Implement the agreed proposals; and
·
Amend proposal as appropriate.
|
|
Limit level being exceeded by
one sampling
|
·
Identify source, investigate the causes of
exceedance and propose remedial measures;
·
Inform Contractor ,IEC, ER, and EPD;
·
Repeat measurement to confirm finding;
·
Increase monitoring frequency to daily;
·
Assess effectiveness of Contractor’s remedial
actions and keep IEC, EPD and ER informed of the results.
|
·
Check monitoring data submitted by ET;
·
Check Contractor’s working method;
·
Discuss with ET and Contractor on possible remedial
measures;
·
Advise the ER on the effectiveness of the proposed
remedial measures;
·
Supervise implementation of remedial measures.
|
·
Confirm receipt of notification of exceedance in
writing;
·
Notify Contractor;
·
Ensure remedial measures properly implemented.
|
·
Identify source(s) and investigate the causes of
exceedance;
·
Take immediate action to avoid further exceedance;
·
Submit proposals for remedial measures to ER with a
copy to ET and IEC within three working days of notification;
·
Implement the agreed proposals; and
·
Amend proposal if appropriate.
|
|
Limit level being exceeded by
two or more consecutive sampling
|
·
Notify IEC, ER, Contractor and EPD;
·
Identify source;
·
Repeat measurement to confirm findings;
·
Increase monitoring frequency to daily;
·
Carry out analysis of Contractor’s working
procedures to determine possible mitigation to be implemented;
·
Arrange meeting with IEC and ER to discuss the
remedial actions to be taken;
·
Assess effectiveness of Contractor’s remedial
actions and keep IEC, EPD and ER informed of the results;
·
If exceedance stops, cease additional monitoring.
|
·
Check monitoring data submitted by the ET;
·
Discuss amongst ER, ET, and Contractor on the
potential remedial actions;
·
Review Contractor’s remedial actions whenever
necessary to assure their effectiveness and advise the ER accordingly;
·
Supervise the implementation of remedial measures.
|
·
Confirm receipt of notification of exceedance in
writing;
·
In consultation with the ET and IEC, agree with the
Contractor on the remedial measures to be implemented;
·
Supervise the implementation of remedial measures;
and
·
If exceedance continues, consider what portion of
the work is responsible and instruct the Contractor to stop that portion of
work until the exceedance is abated.
|
·
Identify source(s) and investigate the causes of
exceedance;
·
Take immediate action to avoid further exceedance;
·
Submit proposals for remedial measures to the ER
with a copy to the IEC and ET within three working days of notification;
·
Implement the agreed proposals;
·
Revise and resubmit proposals if problem still not
under control; and
·
Stop the relevant portion of works as determined by
the ER until the exceedance is abated.
|
2.9.1 Mitigation measures for dust control have been recommended in the
EIA Report. The Contractor shall be responsible for the design and
implementation of these measures.
2.9.2 Recommended mitigation measures to minimise the adverse impacts on
air quality during construction phases are detailed in Section 2.9.3
below.
2.9.3 To ensure compliance with the guideline level and AQO at the ASRs,
the Air Pollution Control (Construction Dust) Regulation should be implemented
and good site practices should be incorporated in the contract clauses to
minimize construction dust impact. A number of below dust suppression measures
are proposed to be implemented.
Ÿ Watering once per hour on active construction work areas, and the watering application intensity is
estimated to be 0.0455 L/m2 (tentatively) so as to achieve a dust removal efficiency of 87.5%;
Ÿ Any excavated or stockpile of dusty material should be covered
entirely by impervious sheeting or sprayed with water to maintain the entire
surface wet and then removed or backfilled or reinstated where practicable
within 24 hours of the excavation or unloading;
Ÿ Any dusty material remaining after a stockpile is removed should be
wetted with water and cleared from the surface of roads;
Ÿ A stockpile of dusty material should not extend beyond the
pedestrian barriers, fencing or traffic cones;
Ÿ The load of dusty materials on vehicles leaving a construction site
should be covered entirely by impervious sheeting to ensure that the dusty
materials do not leak from vehicle;
Ÿ Where practicable, vehicles washing facilities including a high
pressure water jet should be provided at every discernible or designated
vehicle exit point. The area where vehicle washing takes place and the road
section between the washing facilities and the exit point should be paved with
concrete, bituminous materials or hardcores;
Ÿ When there are open excavation and reinstatement works, hoarding of
not less than 2.4m high should be provided as far as practicable along the site
boundary with provision for public crossing. Good site practice shall also be
adopted by the Contractor to ensure the conditions of the hoardings are
properly maintained throughout the construction period;
Ÿ The portion of any road leading only to construction site that is
within 30m of a vehicle entrance or exit should be kept clear of dusty
materials;
Ÿ Surfaces where any pneumatic or power-driven drilling, cutting,
polishing or other mechanical breaking operation takes place should be sprayed
with water or a dust suppression chemical continuously;
Ÿ Any area that involves demolition activities should be sprayed with
water or a dust suppression chemical immediately prior to, during and
immediately after the activities so as to maintain the entire surface wet;
Ÿ Where a scaffolding is erected around the perimeter of a building
under construction, effective dust screens, sheeting or netting should be
provided to enclose the scaffolding from the ground floor level of the
building, or a canopy should be provided from the first floor level up to the
highest level of the scaffolding;
Ÿ Any skip hoist for material transport should be totally enclosed by
impervious sheeting;
Ÿ Every stock of more than 20 bags of cement or dry pulverised fuel
ash (PFA) should be covered entirely by impervious sheeting or placed in an
area sheltered on the top and the three sides;
Ÿ Cement or dry PFA delivered in bulk should be stored in a closed
silo fitted with an audible high level alarm which is interlocked with the
material filling line and no overfilling is allowed; and
Ÿ Exposed earth should be properly treated by compaction, turfing, hydroseeding, vegetation
planting or sealing with latex, vinyl, bitumen, shortcrete
or other suitable surface stabiliser within six months after the last
construction activity on the construction site or part of the construction site
where the exposed earth lies.
3
Noise Impact
3.1.1 In this section, the requirements, methodology, equipment,
monitoring locations, criteria and protocols for the monitoring and audit of
noise impacts during the construction and operation phase of the Project are
presented.
3.1.2 Construction noise impact and traffic noise impact from this Project
are predicted at the identified NSRs.
Noise mitigation measures would be required to reduce noise levels in
order to meet the stipulated standards. A noise monitoring programme should be
undertaken to confirm such mitigation measures would be implemented properly.
3.1.3 According to the EIA, road traffic noise levels should be monitored
at representative NSRs, which are in the vicinity of the recommended direct
mitigation measures, during the first year after road opening. The purpose of
the monitoring is to ascertain that the recommended mitigation measures are
effective in reducing the noise levels.
3.2.1 As referred to in the Technical Memorandum (TM) issued under the
Noise Control Ordinance (NCO), sound level meters 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. Immediately prior to and
following each noise measurement the accuracy of the sound level meter shall be
checked using an acoustic calibrator generating a known sound pressure level at
a known frequency. Measurements may be accepted as valid only if the
calibration level from before and after the noise measurement agrees to within
1.0dB.
3.2.2 Noise measurements should be made in accordance with standard
acoustical principles and practices in relation to weather conditions.
3.2.3 The ET Leader is responsible for the provision, installation,
operation, maintenance and dismantling of
the monitoring equipment. He shall ensure that sufficient noise
monitoring equipment and associated instrumentation are available for carrying out
the baseline monitoring, regular impact monitoring and ad hoc
monitoring. All the equipment and associated instrumentation shall
be clearly labelled.
3.2.4 The monitoring station shall normally be at a point 1m from the
exterior of the sensitive receiver's building facade and be at a position 1.2m
above the ground. If there is problem with access to the normal
monitoring position, an alternative position may be chosen, and a correction to
the measurements shall be made. For reference, a correction of +3dB(A) shall be made to the free-field measurements. The ET
Leader shall agree with the ER/IEC on the monitoring positions and the
corrections adopted. Once the positions for the monitoring stations
are chosen, the baseline monitoring and the impact monitoring shall be carried
out at the same positions.
3.3.1 The construction noise level shall be measured in terms of the
A-weighted equivalent continuous sound pressure level (Leq). Leq (30
min) shall be used as the monitoring parameter for the time period between
0700-1900 hours on normal weekdays. For all other time
periods, Leq (5 min) shall be employed for comparison
with the NCO criteria.
3.3.2 As supplementary information for data auditing, statistical results
such as L10 and L90 shall also be obtained for
reference. Appendix B-2 shows a sample data record sheet for
construction noise monitoring.
3.4.1 Five representative Noise Monitoring Locations (NMLs) are
proposed in Table 3.1 below and shown in Figure 3.1.
Table 3.1 Proposed
Construction Noise Monitoring Locations
Monitoring Location ID
|
ID no. in EIA Report
|
Description
|
Land Uses
|
|
NMC01
|
NKSP-101
|
Kei Shun Special School
|
Educational
|
|
NMC02
|
NSLD-304
|
Shun Lee Disciplined Services Quarters
Block 6
|
Residential
|
|
NMC03
|
NFNS-301
|
Sienna Garden Block 6
|
Residential
|
|
NMC04
|
NPTE-301
|
Po Tat Estate Tat Kai House
|
Residential
|
|
NMC05
|
NHWC-204
|
Hong Wah Court Block B Yee Hong House
|
Residential
|
3.4.2 The status and locations of noise sensitive receivers may change
after issuing this manual. In this event, the ET Leader shall
propose updated monitoring locations and seek approval from ER and the IEC and
agreement from EPD of the proposal.
3.4.3 When alternative monitoring locations are proposed, the monitoring
locations should be chosen based on the following criteria:
Ÿ
At locations
close to the major site activities which are likely to have noise impacts;
Ÿ
Close to the
most affected existing noise sensitive receivers; and
Ÿ
For monitoring
locations located in the vicinity of the sensitive receivers, care should be
taken to cause minimal disturbance to the occupants during monitoring.
3.5.1 The ET shall carry baseline
noise monitoring prior to the commencement of the construction works to
determine the background noise.. Daily measurement of
A-weighted levels Leq, L10 and L90 shall
be conducted for at least two weeks. Daily sampling periods should include: (i)
between 0700 and 1900 hours; (ii) between 1900 and 2300 hours; and (iii)
between 2300 to 0700 hours of next day. Each of the daily sampling periods
shall include 30 minutes (six consecutive Leq(5min) readings).
A schedule on the baseline monitoring shall be submitted to the ER/IEC for
approval before the monitoring starts.
3.5.2 During the baseline monitoring, there should be no major
construction activities near the monitoring stations.
3.5.3 Alternative baseline NML that can give representative baseline
result may be proposed for ER and IEC’s approval with justifications.
3.5.4 In exceptional cases, when insufficient baseline monitoring data or
questionable results are obtained, the ET shall liaise with the IEC to agree on
an appropriate set of data to be used as a baseline reference and submit to ER
for approval.
3.6.1 Noise monitoring shall be carried out at all the designated
monitoring locations. The monitoring frequency shall depend on the
scale of the construction activities. The following is an initial
guide on the regular monitoring frequency for each station on a per week basis
when noise generating activities are underway:
Ÿ
One set of
measurements between 0700-1900 hours on normal weekdays (six consecutive Leq/5min readings);
Ÿ
One set of
measurements between 1900-2300 hours;
Ÿ
One set of
measurements between 2300-0700 hours of next day; and
Ÿ
One set of
measurements between 0700-2300 hours on holidays.
3.6.2 For the latter 3 sets of measurements specified in Section
3.6.1 above, one set of measurements shall at least include 3
consecutive Leq(5min) results.
3.6.3 If a school exists near the construction activity, noise monitoring
shall be carried out at the monitoring stations for the schools during the
school examination periods. The ET Leader shall liaise with the school’s
personnel and the Examination Authority to ascertain the exact dates and times
of all examination periods during the course of the contract.
3.6.4 In case of non-compliance with the construction noise criteria, more
frequent monitoring as specified in the Action Plan in Section 3.7.1 shall
be carried out. This additional monitoring shall be continued until
the recorded noise levels are rectified or proved to be irrelevant to the
construction activities.
3.7.1 Noise Standards for Daytime Construction Activities are specified
under EIAO-TM. The Action and Limit levels for construction noise are defined
in Table 3.2. Should non-compliance of the criteria occurs, action in accordance with the Action Plan in Table
3-3 shall be carried out. Necessary mitigation measures are shown in Section
3.8. Timing and responsibilities for the implementation of mitigation
measures are shown in Implementation Schedule in Appendix C.
Table 3.2 Action
and Limit Levels for Construction Noise
Time Period
|
Action
|
Limit
|
0700-1900
hrs on normal weekdays
|
When
one documented complaint is received
|
75*
dB(A)
|
0700-2300
hrs on holidays (including Sundays); and 1900-2300 hrs on all days
|
60/65/70**
dB(A)
|
2300-0700
hrs of all days
|
45/50/55**dB(A)
|
Notes:
Construction noise
during restricted hours is under the control of Noise Control Ordinance.
* reduce
to 70 dB(A) for schools and 65 dB(A) during
school examination periods.
** to be selected based on Area Sensitivity Rating.
Table 3.3 Event
/ Action Plan for Construction Noise
|
Event
|
Action
|
|
ET
|
IEC
|
ER
|
Contractor
|
|
Action
Level exceeded
|
1. Notify ER, IEC and Contractor;
2. Carry out investigation;
3. Report the results of investigation to the
IEC, ER and Contractor;
4. Discuss with the IEC and Contractor on
remedial measures required;
5. Increase monitor frequency to check
mitigation effectiveness;
|
1. Review the investigation results submitted
by the ET;
2. Review the proposed remedial measures by
the Contractor and advise the ER accordingly;
3. Advise the ER on the effectiveness
of the proposed remedial measures.
|
1. Confirm receipt of notification of failure in
writing;
2. Notify Contractor;
3. Require Contractor to propose remedial
measures for the analysed noise problem;
4. Ensure remedial measures are properly
implemented.
|
1. Submit noise mitigation proposals to ET
Leader / ER;
2. Implement noise mitigation proposals.
|
|
Limit
Level exceeded
|
1. Inform IEC, ER, Contractor and EPD;
2. Repeat measurements to confirm findings;
3. Increase monitoring frequency;
4. Identify source and investigate the cause
of exceedance;
5. Carry out analysis of Contractor’s working
procedures;
6. Discuss with the IEC, Contractor and ER on
remedial measures required;
7. Assess effectiveness of
Contractor’s remedial actions and keep IEC, EPD and ER informed of the
results;
8. If exceedance stops, cease
additional monitoring.
|
1. Discuss
amongst ER, ET, and Contractor on the potential remedial actions;
2. Review
Contractor’s remedial actions whenever necessary to assure their
effectiveness and advise the ER accordingly.
|
1. Confirm
receipt of notification of failure in writing;
2. Notify Contractor;
3. In consolidation with the IEC, agree with
the Contractor on the remedial measures to be implemented;
4. Supervise the implementation of remedial
measures;
5. If exceedance continues, consider stopping
the Contractor to continue working on that portion of work which causes the
exceedance until the exceedance is abated.
|
1. Take
immediate action to avoid further exceedance;
2. Submit proposals for remedial actions to
IEC and ER within 3 working days of notification;
3. Implement the agreed proposals;
4. Submit further proposal if problem still
not under control;
5. Stop the relevant portion of works as
instructed by the ER until the exceedance is abated.
|
3.8.1 The EIA report has recommended construction noise control and mitigation
measures as presented in Appendix C. The Contractor
shall be responsible for the design and implementation of these measures as
listed below:
Ÿ
selection and
optimization of construction programmes, avoidance of parallel operation of
noisy PME, and/or reduction in number and/or the on-time percentage of PME
during noise sensitive periods such as school examination period, and avoidance
of noisy construction activities during school examination period by liaising
with the school representatives;
Ÿ
use of Quality
Powered Mechanical Equipment (QPME) and working methods;
Ÿ
use of
temporary at-source noise mitigation measures such as noise barriers, noise
fabric, noise enclosures, noise jacket and mufflers; and
Ÿ
use of good site practice to limit noise emission from construction site.
3.8.2 Examples of QPME are provided in Table 3.4 below.
Table 3.4 Examples
of “Quiet” PME and Alternative Plants
Identification Code in GW-TM
|
Descriptions of PME
|
SWL in GW-TM, dB(A)
|
QPME example on QPME list [1]
|
SWL of QPME, dB(A)
|
|
CNP 081
|
Excavator
|
112
|
EPD-01145
|
99
|
|
CNP 185
|
Road Roller
|
108
|
EPD-02216
|
97
|
|
CNP 004
|
Asphalt Paver
|
109
|
EPD-01226
|
104
|
Note:
[1] QPME list available on the EPD
website
3.8.3 Good Practices are also recommended as follow:
Ÿ
use of
well-maintained and regularly-serviced plant during the works;
Ÿ
plant
operating on intermittent basis should be turned off or throttled down when not
in active use;
Ÿ
plant that is
known to emit noise strongly in one direction should be orientated to face away
from the NSRs;
Ÿ
silencers,
mufflers and enclosures for plant should be used where possible and maintained
adequately throughout the works;
Ÿ
where possible
fixed plants should be sited away from NSRs; and
Ÿ
stockpiles of excavated materials and other
structures such as site buildings should be used effectively to screen noise
from the works.
3.8.4 If the above measures are not sufficient to reduce the construction
noise to the stipulated standards, upon the advice of ET Leader, the Contractor
shall liaise with the ET Leader on alternative mitigation measures, propose
such measures to the ER/IEC for approval, and implement the mitigation
measures.
3.8.5 Implementation status and the effectiveness of mitigation measures
shall be audited through regular site inspection.
3.9.1 The ET should also carry out monitoring of road traffic noise after
the works under Contract are completed and commence the operation of the
Project. The road traffic noise during operation of the Project
should be measured in terms of the A-weighted equivalent of L10
(1-hr). During the traffic noise measurement, traffic count should also be
undertaken concurrently. Supplementary information for data auditing and
statistical results such as Leq and L90 should
also be obtained for reference.
3.9.2 Noise measurements shall not be made in fog, rain, wind with a
steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The
wind speed shall be checked with a portable wind speed meter capable of measuring
the wind speed in m/s.
3.10.1 Those most affected noise sensitive receivers identified in the EIA
report has been identified as the noise monitoring locations in this EM&A
Manual. The traffic noise monitoring locations during operational phase are
listed in Table 3.5 and shown in Figure 3.2. In
addition, noise monitoring shall be carried out for one year following
construction. The locations for operational noise monitoring shall
be defined during detailed design on the basis of the status of the most
up-to-date information on proposed developments surrounding the Project.
Table 3.5 Traffic
Noise Monitoring Locations
Monitoring Location ID
|
ID no. in
EIA Report
|
Description
|
Land Uses
|
|
NMT01
|
NSLD-201
|
Shun Lee Disciplined Services Quarters
Block 7
|
Residential
|
|
NMT02
|
NSLE-202
|
Shun Lee Estate Lee Ming House
|
Residential
|
|
NMT03
|
NFNS-301
|
Sienna Garden Block 6
|
Residential
|
|
NMT04
|
NPTE-301
|
Po Tat Estate Tat Kai House
|
Residential
|
|
NMT05
|
NHWC-204
|
Hong Wah Court Block B Yee Hong House
|
Residential
|
3.10.2 The status and locations of noise sensitive receivers may change
after issuing this manual. In this event, the ET Leader shall
propose updated monitoring locations and seek approval from ER/IEC and
agreement from EPD of the proposal.
3.10.3 When alternative monitoring locations are proposed, the monitoring
locations should be chosen based on the following criteria in that they should
be:
Ÿ
At locations
close to the major site activities which are likely to have noise impacts;
Ÿ
Close to the
noise sensitive receivers; and
Ÿ
For monitoring
locations located in the vicinity of the sensitive receivers, care should be taken
to cause minimal disturbance to the occupants during monitoring.
3.11.1 No baseline monitoring is required for Operational Road Traffic
Noise.
3.12.1 Traffic noise monitoring shall be carried out at all the designated
traffic noise monitoring stations. The following is an initial guide on the
traffic noise monitoring requirements during the operational phase:
Ÿ
One set of
measurements at the morning traffic peak hour on normal weekdays;
Ÿ
One set of
measurements at the evening traffic peak hour on normal weekdays;
Ÿ
A concurrent
census of traffic flow and percentage heavy vehicle shall be conducted for the Project
roads and the existing road network in the vicinity of each measuring point;
Ÿ
Average
vehicle speed estimated for Project road and the existing road network in the
vicinity of each measuring points; and
Ÿ
The two sets
of monitoring data should be obtained within the first year of operation.
3.12.2 The ET should prepare and deposit to EPD, at least 6 months before
the operation of the proposed roads under the Project, a monitoring plan for
the purpose of assessing the accuracy of traffic noise predictions by comparing
the noise impact predictions with the actual impacts. The monitoring plan
should contain monitoring locations, monitoring schedules, methodology of noise
monitoring including noise measurement procedures, traffic counts and speed
checks, and methodology of comparison with the predicted levels. The ET should
implement the monitoring plan in accordance with the deposited monitoring plan
unless with prior justifications. Monitoring details and results including the
comparison between the measured noise levels and the predicted levels should be
recorded in a report to be deposited with EPD within one month of the
completion of the monitoring. The report should be certified by the ET Leader
before deposit with EPD. A sample data record sheet for traffic noise
monitoring is presented in Appendix B3.
3.12.3 Measured noise levels should be compared with predicted noise levels
by applying appropriate conversion corrections to allow for the traffic
conditions at the time of measurement.
3.12.4 Each set of measurements shall include three measurements of 30
minutes. The parameters L10, Leq, L90 and
Lmax will be recorded for data
auditing and reference.
3.13
Event and Action Plan for Traffic Noise
3.13.1 For traffic noise, the measured/monitored noise levels shall be
compared with the predicted results and the predicted traffic flow conditions
(calculated noise levels based on concurrent traffic census
obtained). In case discrepancies are observed, explanation shall be
given to justify the discrepancies.
3.14
Noise Mitigation Measures for Traffic Noise
3.14.1 The recommended noise mitigation measures in the EIA report are
described below and illustrated in Figure 3.3 to Figure 3.5.
At Sau Mau Ping Road and Lin Tak Road
·
SE1: about 59m of 7m tall semi-enclosure provided on Sau Mau Ping Road
(shown in Figure 3.3 (Sheet 1 of
2));
·
CT1: about 97m of 7m tall cantilevered noise barrier with 3.5m long
cantilever (at 45°) on Sau Mau Ping Road (shown in Figure 3.3 (Sheet 1 of 2));
·
CT2: about 77m of 5.5m tall cantilevered noise barrier with 3.5m long
cantilever (at 30°) on Sau Mau Ping Road (shown in Figure 3.3 (Sheet 1 of 2));
·
CT3: about 91m of 5.5m tall cantilever noise barrier with 3.5m long
cantilever (at 45°) on Lin Tak Road flyover (shown in Figure 3.3 (Sheet 1 of 2)).
·
VB1: about 92m of 3m vertical noise barrier on Sau Mau Ping Road (shown
in Figure 3.3 (Sheet 1 of 2))
At J/O Clear Water Bay Road and On Sau Road
and J/O Clear Water Bay Road and New Clear Water Bay Road
·
CT4: about 24m of 7m tall cantilevered noise barrier with 3.5m long cantilever (at
45°) on Clear Water Bay Road /On Sau Road (shown in Figure 3.4);
·
SE2: about 146m of 7m tall semi-enclosure provided on Clear Water Bay
Road /On Sau Road (shown in Figure 3.4);
At New Clear Water Bay Road and Shun Lee
Tsuen Road
·
FE1: about 130m of 7m tall full-enclosure provided on Shun Lee Tsuen
Road (shown in Figure 3.5) ;
·
CT5: about 45m of 7m tall cantilevered noise barrier with 3.5m long
cantilever (at 45°) on Shun Lee Tsuen Road (shown in Figure 3.5);
·
CT6: about 40m of 7m tall cantilevered noise barrier with 3.5m long
cantilever (at 45°) on Shun Lee Tsuen Road (shown in Figure 3.5).
4.1.2 Adverse water quality impacts associated with the operation of the
Project are not expected. Thus, no water
quality monitoring and audit programme is required during the Project
operation.
4.1.3 This section describes the requirement of water quality monitoring
during the construction works of the Project.
4.2.2 The levels of DO, turbidity and pH should be measured in situ
whereas SS should be determined by laboratory analysis.
4.3.1 As identified in the EIA Report, water quality monitoring is recommended for the channelized nullahs at Clear Water Bay Road and Ma Yau Tong Stream. For the channelized nullahs at Clear Water
Bay Road (near the northern Project site), one monitoring station, namely
Station E, should be set in the water course upstream of the works area as a
control station, and one impact monitoring station, namely Station F, should be
set in the water course downstream of the works area as shown in Figure 4.1.
Similarly, for Ma Yau Tong Stream (near the southern Project site), one
monitoring station, namely Station H, should be set in the water course
upstream of the Project works as a control station, and one impact monitoring
station, namely Station I, should be set in the water course downstream of the
works area as shown in Figure 4.1. Station I is selected at an open
water course immediately downstream of the Project site boundary to provide an
indication on the typical water quality condition during the Project works. All
the water bodies further downstream of Station I are all within covered
drainage or box culvert with access difficulty.
The proposed monitoring stations
are also listed in Table 4.1 below.
Table 4.1 Proposed Water
Quality Monitoring Stations
|
Inland
Water
|
Stations
|
Description
|
Easting
|
Northing
|
|
Channelized nullah across the Project site
|
E
|
Upstream Control
Station
|
841329
|
821753
|
|
F
|
Downstream Impact
Station
|
841469
|
821635
|
|
Ma Yau Tong Stream
|
H
|
Upstream Control Station
|
843008
|
819880
|
|
I
|
Downstream Impact Station
|
842652
|
819573
|
4.3.2 Sampling
should be taken at the water surface at all the designated monitoring
stations. The monitoring
station should not be influenced by any local pollution source so that
representative data could be sampled. The ET leader shall further review the status
and suitability of the water quality monitoring stations prior to the
commencement of the monitoring works, and where necessary propose with
justification for changes to monitoring locations or other requirements of the
EM&A programme, and seek approval from the IEC and EPD.
4.4.1 Baseline conditions in the watercourses should be established and
agreed with EPD prior to the commencement of construction works. The
purpose of the baseline monitoring is to establish ambient conditions prior to
the commencement of the works and to demonstrate the suitability of the proposed
monitoring stations. The baseline conditions should normally be
established by measuring the water quality parameters including DO, turbidity,
SS and pH as specified in Section 4.2.
4.4.2 The baseline monitoring should be taken at all designated monitoring
stations, three days per week, for at least 4 weeks prior to the commencement
of construction works. Temporal and spatial variations should be taken into
account. There should not be any construction activities in the vicinity of the
stations during the baseline monitoring. The interval between 2 sets of
monitoring should not be less than 36 hours. Replicate in-situ measures should
be carried out in each sampling event.
4.4.3 Baseline monitoring schedule should be submitted to EPD at least 4
weeks prior to the commencement of baseline monitoring. EPD should also be notified immediately for
any changes in schedule.
4.4.4 The baseline monitoring report should be submitted to EPD at least 4
weeks before the commencement of the construction works for agreement. The baseline monitoring report should be
certified by the IEC before submission to EPD.
4.5.1 During the construction works of the Project, impact monitoring
should be undertaken three days per week with sampling / measurement at the
designated monitoring stations. Upon completion of the construction
works, the monitoring exercise at the designated monitoring locations should be
continued for four weeks in the same manner as the impact monitoring. The interval between two sets of monitoring
should not be less than 36 hours except where there are exceedances of Action
and/or Limit Levels, in which case the monitoring frequency will be increased.
4.5.2 Replicate in-situ measurements should be carried out in each
sampling event. The monitoring probes
should be retrieved out of water after the first measurement and then
redeployed for the second measurement.
Where the difference in value between the first and second readings of
DO, turbidity or pH is more than 25% of the value of the first reading, the
reading should be discarded and further readings should be taken.
4.5.3 The water quality monitoring schedule should be submitted to EPD at
least 1 week before the first day of the monitoring month. EPD should be
notified immediately of any changes in schedule. If the monitoring data collected at the
designated stations indicate that the Action or Limit Levels as shown in Table
4.3 are exceeded, appropriate actions should be taken in accordance with
the Event and Action Plan in Table 4.4.
4.6
Site Audits
4.6.1 Implementation of regular site audits aim to ensure that the
recommended mitigation measures are properly undertaken during proposed
construction works. It can also provide
an effective control of any malpractices and therefore achieve continual
improvement of environmental performance on site.
4.6.2 Site audits shall be carried out by the ET and shall be based on the
mitigation measures for water pollution control recommended in the
implementation schedule as presented in Appendix C. In the event that the recommended mitigation
measures are not fully or properly implemented, deficiency shall be recorded
and reported to the site management.
Suitable actions are to be carried out to:
Ÿ
investigate the problems and the causes;
Ÿ
issue action notes to the Contractor who is
responsible for the works;
Ÿ
implement remedial and corrective actions
immediately;
Ÿ
re-inspect the site conditions upon completion of
the remedial and corrective actions; and
Ÿ
record the event and discuss with the Contractor for
preventive actions.
4.7.1 Other relevant data should also be recorded, such as: monitoring
location / position, time, water depth, weather conditions and any special
phenomena underway near the monitoring station.
A sample data record sheet is shown in Appendix B4 for reference.
Dissolved
Oxygen and Temperature Measuring Equipment
4.8.1 The instrument should be a portable and weatherproof DO measuring
instrument complete with cable and sensor, and use a DC power source. The
equipment should be capable of measuring:
Ÿ
a DO level in the range of 0 ‑ 20 mg/L and 0 ‑
200% saturation; and
Ÿ
a temperature of 0 ‑ 45 degree Celsius.
Turbidity
Measurement Instrument
4.8.2 The instrument should be a portable and weatherproof
turbidity-measuring instrument using a DC power source. It should have a
photoelectric sensor capable of measuring turbidity between 0 - 1000 NTU (for
example, Hach model 2100P or an approved similar
instrument).
pH Measurement Instrument
4.8.3 The instrument should consist of a potentiometer, a glass electrode,
a reference electrode and a temperature-compensating device. It should be
readable to 0.1pH in a range of 0 to 14. Standard buffer solutions of at
least pH 7 and pH 10 should be used for calibration of the instrument before
and after use.
Sampler
4.8.4 A water sampler is required. It should comprise a transparent
PVC cylinder, with a capacity of not less than 2 litres, which can be
effectively sealed with latex cups at both ends. The sampler should have
a positive latching system to keep it open and prevent premature closure until
released by a messenger when the sampler is at the selected water depth (for
example, Kahlsico Water Sampler or an approved
similar instrument).
Sample
Containers and Storage
4.8.5 Water samples for SS should be stored in high density polythene
bottles with no preservative added, packed in ice (cooled to 4°C without being
frozen) and delivered to the laboratory and analysed as soon as possible after
collection. Sufficient volume of samples should be collected to achieve
the detection limit stated in Table 4.2.
Calibration
of In-Situ Instruments
4.8.6 The DO meter and turbidimeter should be
checked and calibrated before use. DO meter and turbidimeter
should be certified by a laboratory accredited under HOKLAS or any other
international accreditation scheme, and subsequently re-calibrated at three
monthly intervals throughout all stages of the water quality monitoring.
Responses of sensors and electrodes should be checked with certified standard
solutions before each use. Wet bulb calibration for a DO meter should be
carried out before measurement at each monitoring location.
4.8.7 Sufficient stocks of spare parts should be maintained for
replacements when necessary. Backup monitoring equipment should also be
made available so that monitoring can proceed uninterrupted even when some
equipment is under maintenance, calibration, etc.
4.9.1 Analysis of SS should be carried out in a HOKLAS or other
international accredited laboratory. Sufficient water samples should be
collected at the monitoring stations for carrying out the laboratory
determinations. The determination work should start within 24 hours after
collection of the water samples. The analyses should follow the American
Public Health Association (APHA) Standard Methods for the Examination of Water
and Wastewater or an equivalent method subject to the approval of EPD.
Analytical methods and detection limits for SS are present in Table 4.2.
Table 4.2 Analytical Methods to
be Applied to Water Quality Samples
|
Parameters
|
Analytical
Method
|
Detection
Limit
|
|
Suspended
Solids
|
APHA
2540D *
|
1 mg/L
|
Note:
* APHA American Public Health Association
Standard Methods for the Examination of Water and Wastewater
4.9.2 The testing of SS should be HOKLAS accredited (or if not, approved
by EPD) and comprehensive quality assurance and control procedures in place in
order to ensure quality and consistency in results.
4.9.3 Detailed testing methods, pre-treatment procedures, instruments use,
Quality Assurance / Quality Control (QA/QC) details (such as blank, spike
recovery, number of replicate samples per batch, etc.), detection limit and
accuracy shall be submitted to EPD for approval prior to the commencement of
monitoring programme. EPD may also
request the laboratory to carry out analysis of known standards provided by EPD
for quality assurance. The QA/QC shall
be in accordance with the requirements of HOKLAS or international accredited
scheme. The QA/QC results shall be
reported. The testing methods and
related proposal should be checked and certified by IEC before submission to
EPD for approval.
4.9.4 Additional replicate samples may be required by EPD for
inter-laboratory calibration. Remaining samples after analysis should be
kept by the laboratory for 3 months in case repeat analysis is required.
If in-house or non-standard methods are proposed, details of the method
verification may also be required to submit to EPD. In any circumstance,
the sample testing should have comprehensive quality assurance and quality
control programmes. The laboratory should prepare to demonstrate the
programme to DEP or his representatives when requested.
4.10
Event and Action Plan
4.10.1 The water quality criteria, namely action and limit levels, are
shown in Table 4.3. These
criteria should be applied to ensure that any deterioration of water quality is
readily detected and timely action is taken to rectify the situation.
Should the monitoring results of the water quality parameters at any designated
monitoring station exceed the water quality criteria, the actions in accordance
with the Event and Action Plan summarized in Table 4.4 shall be carried out.
4.10.2 The ET Leader should assess the potential impacts on the water
sensitive receiver based on the monitoring data. The performance of the environmental
management system (i.e. of the overall EM&A programme) should be reviewed by
the ET Leader on a quarterly basis. The
findings of this review should be included in the quarterly EM&A summary
reports, together with any recommendations to improve the performance of the
EM&A programme.
Table 4.3 Action and Limit Levels for Water
Quality
|
Parameters
|
Action
Level
|
Limit
Level
|
|
Surface DO in mg/L
|
5
percentile (%-ile) of baseline data
|
4 mg/L or 1%-ile
of baseline data
|
|
Surface SS
in mg/L
|
95 %-ile of
baseline data or 120% of control station’s SS on the same day of measurement
|
25 mg/L or 99 %-ile
of baseline or 130% of control station's SS on the same day of measurement
|
|
Surface Turbidity in
NTU
|
95 %-ile of
baseline data or 120% of control station’s turbidity on the same day of
measurement
|
99 %-ile of
baseline or 130% of control station's turbidity on the same day of
measurement
|
|
Surface pH
|
Beyond the range 6.6 to 8.4
|
Beyond the range of 6.5 to 8.5
|
Note:
(1)
For DO,
non-compliance of the water quality limits occurs when monitoring result is
lower than the limits.
(2) For pH, action should be taken if the
measured pH falls outside the specified range.
(3) For SS and turbidity, non-compliance of the
water quality limits occurs when monitoring result is higher than the limits.
4.10.3 Mitigation measures for water quality control have been recommended
in the EIA Report. The Contractor should
be responsible for the design and implementation of these measures.
4.10.4 Recommended mitigation measures to minimize the adverse impacts on
water quality during the construction activities are listed in the
implementation schedule given in Appendix C.
4.10.5 In the event of complaints or non-compliance / area of improvement
being observed, the ET and the Contractor should review the effectiveness of
these mitigation measures, design alternative or additional mitigation measures
as appropriate and propose to the IEC for approval and implement these
alternative or additional measures.
Table 4.4 Event and Action Plan for Water Quality
|
Event
|
ET Leader
|
IEC
|
ER
|
Contractor
|
|
Action level being exceeded by one sampling
day
|
·
Repeat in
situ measurement to confirm findings;
·
Identify reasons for non-compliance and source(s)
of impact;
·
Inform IEC and Contractor;
·
Check monitoring data, all plant, equipment and
Contractor's working methods;
·
Discuss mitigation measures with IEC, ER and
Contractor;
·
Repeat measurement on next day of exceedance.
|
·
Discuss with ET, ER and Contractor on the
mitigation measures;
·
Review proposals on mitigation measures submitted
by Contractor and advise the ER accordingly;
·
Assess the effectiveness of the implemented
mitigation measures.
|
·
Discuss with ET, IEC and Contractor on the
proposed mitigation measures;
·
Make agreement on the mitigation measures to be
implemented.
·
Supervise the implementation of remedial measures.
|
·
Inform the ER and confirm notification of the
non-compliance in writing;
·
Rectify unacceptable practice;
·
Check all plant and equipment;
·
Consider changes of working methods;
·
Discuss with ET, ER and IEC and propose mitigation
measures to IEC and ER;
·
Implement the agreed mitigation measures.
|
|
Action level being exceeded by more than
one consecutive sampling day
|
·
Repeat in
situ measurement to confirm findings;
·
Identify reasons for non-compliance and source(s)
of impact;
·
Inform IEC and Contractor;
·
Check monitoring data, all plant, equipment and
Contractor's working methods;
·
Discuss mitigation measures with IEC, ER and
Contractor;
·
Ensure mitigation measures are implemented;
·
Prepare to increase the monitoring frequency to
daily;
·
Repeat measurement on next day of exceedance.
|
·
Discuss with ET, ER and Contractor on the
mitigation measures;
·
Review proposals on mitigation measures submitted
by Contractor and advise the ER accordingly;
·
Assess the effectiveness of the implemented
mitigation measures.
|
·
Discuss with ET, IEC and Contractor on the
proposed mitigation measures;
·
Make agreement on the mitigation measures to be
implemented;
·
Supervise the implementation of remedial measures.
|
·
Inform the ER and confirm notification of the
non-compliance in writing;
·
Rectify unacceptable practice;
·
Check all plant and equipment;
·
Consider changes of working methods;
·
Discuss with ET, ER and IEC and propose mitigation
measures to IEC and ER within three working days;
·
Implement the agreed mitigation measures.
|
|
Limit level being exceeded by one sampling
day
|
·
Repeat in
situ measurement to confirm findings;
·
Identify reasons for non-compliance and source(s)
of impact;
·
Inform IEC Contractor and EPD;
·
Check monitoring data, all plant, equipment and
Contractor's working methods;
·
Discuss mitigation measures with IEC, ER and
Contractor;
·
Ensure mitigation measures are implemented;
·
Increase the monitoring frequency to daily until
no exceedance of Limit level.
|
·
Discuss with ET, ER and Contractor on the
mitigation measures;
·
Review proposals on mitigation measures submitted
by Contractor and advise the ER accordingly;
·
Assess the effectiveness of the implemented
mitigation measures.
|
·
Discuss with IEC, ET and Contractor on the
proposed mitigation measures;
·
Request Contractor to critically review the
working methods;
·
Make agreement on the mitigation measures to be
implemented;
·
Supervise the implementation of remedial measures.
|
·
Inform the ER and confirm notification of the
non-compliance in writing;
·
Rectify unacceptable practice;
·
Check all plant and equipment;
·
Consider changes of working methods;
·
Discuss with ET, IEC and ER and propose mitigation
measures to IEC and ER within three working days;
·
Implement the agreed mitigation measures.
|
|
Limit level being exceeded by more than one
consecutive sampling day
|
·
Repeat in
situ measurement to confirm findings;
·
Identify reasons for non-compliance and source(s)
of impact;
·
Inform IEC Contractor and EPD;
·
Check monitoring data, all plant, equipment and
Contractor's working methods;
·
Discuss mitigation measures with IEC, ER and
Contractor;
·
Ensure mitigation measures are implemented;
·
Increase the monitoring frequency to daily until
no exceedance of Limit level for two consecutive days.
|
·
Discuss with ET, ER and Contractor on the
mitigation measures;
·
Review proposals on mitigation measures submitted
by Contractor and advise the ER accordingly;
·
Assess the effectiveness of the implemented
mitigation measures.
|
·
Discuss with IEC, ET and Contractor on the
proposed mitigation measures;
·
Request Contractor to critically review the
working methods;
·
Make agreement on the mitigation measures to be
implemented;
·
Supervise the implementation of remedial measures;
·
Consider and instruct, if necessary, the
Contractor to slow down or to stop all or part of the construction activities
until no exceedance of Limit level.
|
·
Inform the ER and confirm notification of the
non-compliance in writing;
·
Rectify unacceptable practice;
·
Check all plant and equipment;
·
Consider changes of working methods;
·
Discuss with ET, IEC and ER and propose mitigation
measures to IEC and ER within three working days;
·
Implement the agreed mitigation measures;
·
As directed by the ER, to slow down or to stop all
or part of the construction activities.
|
5.1.1 Construction and Demolition (C&D) materials, general refuse from
workforce and chemical waste would be generated during the construction phase.
It is the Contractor’s responsibility to ensure all the waste arising from the
Project is handled, stored and disposed of in accordance with good waste management
practices, relevant legislation and waste management guidelines. Provided that
the waste is handled, transported and disposed of using approved methods and
that the recommended good site practices are strictly followed, adverse
environmental impacts would not be expected.
5.2.1 The mitigation measures recommended in EIA Report should from the
basis of the site Waste Management Plan (WMP) to be developed by the Contractor
during the construction stage.
5.2.2 It is recommended that the waste generated during the construction
activities should be audited regularly by the ET to determine if waste is being
managed in accordance with approved procedures and the site WMP. The audit
should review all aspects of on-site waste management practices including waste
management practices including waste generation, storage, recycling, transport
and disposal. Apart from site inspection, documents including licences,
permits, disposal and recycling records should be reviewed and audited for compliance
with the legislation and contract requirements. In addition, the routine site
inspections should check the implementation of the recommended good site
practices and other waste management mitigation measures. In order to monitor
the disposal of C&D material at landfills and public filling areas, as
appropriate, and to control fly tipping, a trip-ticket system should be
included as one of the contractual requirements to be implemented by an
Environmental Team undertaking the Environmental Monitoring and Audit work.
5.2.3 With the appropriate handling, storage and disposal of waste arising
from the construction works as recommended in Appendix C, the potential
of adverse environmental impacts would be minimized. During the site
inspections, the ET should pay special attention to the issues relating to
waste management and check whether the Contractor has implemented the
recommended good site practices and mitigation measures.
5.3.1 Regular audits and site inspections should be carried out during construction
phase by the ER, ET and Contractor to ensure that the recommended good site
practices and the recommended mitigation measures in Appendix C are
properly implemented by the Contractor. The audits should concern all aspects
of on-site waste management practices including waste generation, storage,
recycling, transport and disposal. Apart from site inspection, documents
including licences, permits, disposal and recycling records should be reviewed
and audited for compliance with the legislation and contract requirements.
5.3.2 The requirements of the environmental audit programme are set out in
Section 10 of this Manual. The audit programme will verify the
implementation status and evaluate the effectiveness of the mitigation
Measures.
6.1.1 As there will be no adverse land contamination impact arising from
the improvement works of the roads, land contamination EM&A works in both
construction and operational phases are considered not necessary.
7.1.1 The EIA report has identified that the site boundary of the Project comprises
woodland, plantation, modified watercourse and developed area. A total of three flora and no fauna species
of conservation importance were recorded within the Project Site boundary. Only two flora species of conservation (Incense Tree and Luofushan Joint-fir) at the woodland at the northern side of Clear Water Bay Road, and one
Incense Tree recorded on the southern side of New Clear Water Bay Road would be subject to direct impacts. Ecological impacts
anticipated include woodland habitat loss and indirect impacts such as noise
disturbance, construction site runoff and risk of collision of birds with noise
barriers to the nearby natural habitat and wildlife.
7.1.2 Mitigation measures have been recommended to minimize potential
direct and indirect impacts to ecological resources. With the
mitigation measures implemented, no unacceptable impact on wildlife is expected
from the construction and operation of the Project. This section
describes the requirements for the monitoring and auditing of ecological
impacts arising from the Project.
7.2.1 Mitigation measures for ecological impacts have been recommended in
the EIA Report to minimize potential direct and indirect
impacts. The Contractor should be responsible for the design and
implementation of these measures. The
implementation schedule of the mitigation measures is given in Appendix
C.
Measures to Avoid / Minimize Impacts to Flora
Species of Conservation Importance
7.2.2 Within the works footprint, two
flora species of conservation importance (Incense Tree and Luofushan Joint-fir) were recorded. Prior to the commencement
of the construction works, a vegetation survey should be conducted by a
qualified ecologist
/ botanist within the Project
Site boundary to:
1) Ascertain the presence of, as
well as update the conditions, number and locations of the flora species of
conservation importance identified.
2) Determine the number and
locations of the affected individuals of flora species of conservation
importance and evaluate the suitability and/or practicality of the
transplantation.
7.2.3 A Transplantation Proposal should be prepared by a qualified
ecologist / botanist with detailed findings of the vegetation survey (i.e.
number and locations of the affected individuals, assessment of the suitability
and / or practicality of the transplantation) and locations of receptor
site(s), transplantation methodology, implementation
programme of transplantation, post-transplantation monitoring and maintenance
programme. The proposal should be submitted to and approved by AFCD prior to commencement
of any works (including ground investigation). The approved transplantation
works should be supervised by a qualified botanist / horticulturist / Certified
Arborist with relevant experience in transplanting flora species of
conservation importance. After transplantation,
a 3-year
monitoring and maintenance programme of the transplanted species should be
conducted to ensure the establishment of the transplanted trees.
7.2.4 Some flora species of conservation importance are located in close
proximity to the proposed works (e.g. six out of 16 individuals of Luofushan Joint-fir identified on the upper slope on the
northern side of Clear Water Bay Road would not be directly affected by the
proposed works). To avoid potential damage
to these individuals during the construction phase, hoarding or fencing should be erected around the works areas to restrict
access to natural habitats adjacent to works areas by site workers and to
reduce human disturbance.
Measures to Avoid/ Minimize Habitat Loss to
Woodland and Plantation
7.2.5 Habitat loss could be avoided in the first instance by retaining
existing vegetation wherever possible, particularly mature and semi-mature
trees present within the works areas.
Any trees retained should be adequately protected during construction
phase to promote their health and longevity.
Areas which would be temporarily affected by construction activities (i.e.
slope works) should be reinstated after completing the construction works.
7.2.6 Hoarding or fencing should be
erected around the works areas during construction phase to restrict access to
natural habitats adjacent to works areas by site workers.
Measures to Minimise Disturbance from Construction
Activities
7.2.7
Construction dust should be suppressed to avoid and minimize the dust
covering leaves of plants that would affect their photosynthesis, and thus
their health and growth:
·
Regular spraying of haul
roads.
·
Proper storage of
construction materials.
·
Covering trucks or
transporting wastes in enclosed containers to minimize windblown litter and
dust during transportation of waste.
7.2.8
Noise impact during construction phase should be avoided and minimized
to reduce the disturbance to the habitats adjacent to the works areas:
·
Machines and plant (e.g.
trucks) that may be in intermittent use should be shut down between work
periods or should be throttled down to a minimum.
·
Machines and plants
known to emit strong directional noise should, wherever possible, be orientated
so that the noise is directed away from the nearby habitats.
·
Material stockpiles and
other structures should be effectively utilized, wherever practicable, in
screening noise from on-site construction activities.
·
Using Quiet Mechanical
Plant (QMP) to limit noise emissions at source.
·
QMP and other machines
and plants (e.g. air compressors, concrete pumps) should be covered by noise
enclosure to further reduce noise impact.
7.2.9
Through night-time lighting control during
construction phase, glare disturbance to wildlife would
be controlled.
Measures to Minimise Pollution to
Watercourses
7.2.10 Good site practices should be adopted to avoid any pollution from entering
the watercourses. Practices to minimize
surface runoff and to reduce suspended solid levels should be undertaken.
·
Drainage arrangements
should include sediment traps to collect and control construction run-off.
·
All works and storage
area should be restricted to the site boundary.
·
General refuse and
construction wastes should be collected and disposed of in a timely and appropriate
manner.
·
Regular check of the
construction boundary to avoid unmitigated impacts imposed on nearby
watercourse.
Measures to Minimize Impacts from Noise
Barriers
7.2.11 During the operational phase, the road networks and associated noise
barriers may result in bird collision and mortality. Mitigation measures such as use of tinted
materials and superimposing dark patterns or strips on the barrier, as per EPD / Highways Department requirements would
be employed to minimise incidents of birds mortality
from collision.
7.3.1 To minimize the disturbance impact on the natural habitats and
wildlife, the implementation of the mitigation measures recommended above
should be subject to regular site audit. Site audit should be carried out
monthly throughout the construction phase. In case of
non-compliance, the Contractor should be informed to strengthen the proposed mitigation
measures accordingly.
7.3.2 To avoid potential damage to the
retained flora species of conservation importance during the construction
works, hoarding or fencing should be set up around the works areas during the construction phase to restrict access
to natural habitats adjacent to works areas by site workers to reduce human
disturbance. During the construction phase,
regular site inspection is recommended to ensure that hoarding / fencing has
not been breached.
7.3.3 After the transplantation of the trees and flora species of conservation
importance, a 3 year monitoring and maintenance programme of the transplanted species
is proposed to ensure the establishment of the transplanted trees. The monitoring and maintenance programme involves
both transplanting and maintenance phases. During both phases, standard practices and
regular site inspections should be conducted by the landscape contractors. Assessment on the transplanted
species should be regularly conducted, including monitoring of: growth, health
condition, and survival rate. Maintenance
works including weeding, watering or pruning should be carried out if necessary.
The necessity for further monitoring and maintenance should be reviewed after the 3 year
ecological monitoring programme.
8.1.1 The EIA has recommended landscape and visual mitigation measures to
be undertaken during both the construction and operational phases of the
Project. The
design, implementation and maintenance of landscape mitigation measures should
be checked to ensure that any potential conflicts between the proposed
landscape measures and any other works of the project would be resolved as
early as practical without affecting the implementation of the mitigation
measures.
8.2.1 The proposed mitigation measures of landscape and visual impacts are
summarised in the Implementation Schedule of Mitigation Measures in Appendix
C. The landscape and visual mitigation measures proposed should be
incorporated in the detailed landscape and engineering design. The construction
phase mitigation measures should be adopted from the commencement of construction
and should be in place throughout the entire construction period. Mitigation
measures for the operational phase should be adopted during the detailed design
and be built as part of the construction works so that they are in place on
commissioning of the Project.
8.2.2 To ensure proper preservation of trees, Tree Removal Application
should be checked by a Registered Landscape Architect (RLA) or a competent
person.
8.2.3 The landscape and visual mitigation measures are elaborated in Tables
8.1 and 8.2.
Locations of landscape resources (LR) are shown in Figure 8.1 and Figure
8.2.
Table 8.1 Construction Phase Mitigation Measures
|
ID No.
|
Construction Phase Mitigation Measures
|
Funding / Implementation
|
Maintenance / Management Agency
|
|
CM1[3]
|
All
existing trees to be retained shall be carefully protected during
construction.
Reference
shall be made to DEVB TC (W) No.7/2015
and Guidelines on Tree Preservation
during Development, GLTMS of DEVB
|
CEDD
|
CEDD
|
|
CM2[2]
|
Tree Transplantation
Detailed
transplanting proposal will be submitted to relevant government departments
for approval in accordance with ETWB
TCW No. 29/2004 and DEVB TC
(W) No.7/2015
and “Guidelines on
Tree Transplanting”, GLTMS of DEVB.
|
CEDD
|
CEDD
(Until handover to relevant government
departments)
|
|
CM3[3]
|
Erection
of decorative screen hoarding for reducing visual impacts
|
CEDD
|
CEDD
|
|
CM4
|
Measures
to avoid / minimize impacts to flora species of conservation importance.
|
CEDD
|
CEDD
|
Table 8.2 Operational Phase Mitigation Measures
|
ID No.
|
Operational Phase
Mitigation Measures
|
Funding /
Implementation
|
Maintenance /
Management Agency
|
|
OM1
[1], [2],
[3]
|
Compensatory tree
planting for loss of existing trees
|
CEDD
|
LR3.1, LR3.2, LR3.3:
HyD
LR1.2, LR3.4: LCSD
|
|
OM2
[1], [2], [3], [4]
|
Compensatory
woodland planting
|
CEDD
|
LR1.3, LR8.5: HyD
LR8.3: HyD, ArchSD
|
|
OM3
[1], [2], [3] [4]
|
Compensatory
shrub mix planting
|
CEDD
|
LR3.1,
LR3.2: HyD
|
|
OM4
[1], [2], [3] [4]
|
Hydro-seeding
planting with shrub seed mix
|
CEDD
|
LR8.4: HyD
|
|
OM5
[1], [2], [3] [4]
|
Tall
buffer advance screen tree / shrub / climber planting
|
CEDD
|
LR3.1,
LR3.2: HyD
|
|
OM6
[1], [2], [3]
|
Planting
of road verges, central divider and around structures
|
CEDD
|
LR8.5, LR1.3, LR4: HyD
LR1.1, LR3.3, LR3.4, LR8.3: LCSD
|
|
OM7
[3]
|
Reinstate
modified watercourse
|
CEDD
|
DSD
|
|
OM8
[3]
|
Provision
of visually pleasing aesthetic treatment on noise barriers ( with climbers
provided if space available) and enclosures
|
CEDD
|
HyD
|
|
OM9
[3]
|
Hard Landscape
Treatment Carriageway, Structures and Roadside Furniture
(for
example, pleasing aesthetic finishing of retaining wall)
|
CEDD
|
HyD
|
|
OM10
[1], [2],
[3] [4]
|
Planting of toe planters for slope enhancement
|
CEDD
|
LCSD
|
|
OM11
[1], [2],
[3] [4]
|
Planting of berm planters/ planting strips for slope
enhancement
|
CEDD
|
HyD
|
Note:
(1)
The
maintenance of the interim greening measures will be undertaken by contractor
for the first 36-month establishment period. In the case that the site is still
not allocated after the establishment period, CEDD would liaise with relevant
government departments to agree on the subsequent maintenance agent of the
interim greening measures. Contractor would be responsible for the maintenance
of the interim greening measures before any agreement is made.
(2)
The
management and maintenance agencies of mitigation measures have been identified
in accordance with DEVB TCW 6/2015.
The agreement and approval of the implementation, management and maintenance
agencies of the Project will be sought from relevant parties during detailed
design stage of the project. Contractor would be responsible for maintenance
and management of trees, vegetation and the associated facilities (e.g.
irrigation system) within the permanent site boundary. The maintenance matrix
and responsible parties for trees outside the permanent site boundary are yet
to be confirmed. To facilitate with the confirmation process, CEDD would be
responsible for the maintenance works before any agreement is made.
(3)
Mitigation
measures refer to Good Site Practices.
(4)
All
slope planting should be complied with GEO publication No. 1/2011 - Technical
Guidelines on Landscape Treatment for Slopes.
8.3.1 With the extensive landscape mitigation measures to be implemented
in the Project, a registered landscape architect (RLA) should be employed by
the Contractor for the implementation of landscape mitigation measures and
subsequent maintenance during a 36-month establishment period after completion
of the implementation of all landscape mitigation measures.
8.3.2 All measures undertaken by both the Contractor during the
construction phase and 36 month establishment period of the operational phase
should be audited by the ET on a regular basis to ensure compliance with the
recommended mitigation measures in the EIA Report.
8.3.3 Site Inspection should be undertaken at least once every two weeks
throughout the construction period and once every two months during operation phase.
Operation phase auditing would be restricted to the 36-month establishment
period of the landscape mitigation measures. Ad-hoc site inspection should also
be carried out if significant environmental problems are identified.
8.3.4 The audits shall take into
consideration tree preservation, transplanting,
compensation, preserving existing landscape resources/ landscape character
areas, preserving any identified protected species, management of work sites
facilities and the implementation of permanent landscape works in accordance
with the proposed mitigation measures in Table 8.1 and 8.2 above, also
Figure 10.16 – 10.26 of the EIA report.
8.3.5 In the event of non-compliance, the responsibilities of the relevant
parties are detailed in the Event/Action plan provided in Table 8.3.
Table
8.3 Event
and Action Plan for Landscape and Visual
|
Event
|
ET
Leader
|
IEC
|
ER
|
Contractor
|
|
Non-conformity on
one occasion
|
·
Identify
source(s);
·
Inform
the Contractor, IEC and ER;
·
Discuss
remedial actions with IEC, ER and Contractor;
·
Monitor
remedial actions until rectification has been completed
|
·
Check
inspection report;
·
Check
contractor’s working method;
·
Discuss
with ET, ER and Contractor on possible remedial measures;
·
Advise
ER on effectiveness of proposed remedial measures;
·
Check
implementation of remedial measures
|
·
Confirm
receipt of notification of non-conformity in writing
·
Review
and agree on the remedial measures proposed by the Contractor;
·
Supervise
implementation of remedial
|
·
Identify
source and investigate the non- conformity
·
Implement
remedial measures
·
Amend
working methods agreed with ER as appropriate
·
Rectify
damage and undertake any necessary replacement
|
|
Repeated Non-
conformity
|
·
Identify
source(s)
·
Inform
the Contractor, IEC and ER;
·
Discuss
inspection frequency
·
Discuss
remedial actions with IEC, ER and Contractor
·
Monitor
remedial actions until rectification has been completed;
·
If
non- conformity stops, cease additional monitoring
|
·
Check
inspection report
·
Check
Contractor’s working method
·
Discuss
with ET, ER and Contractor on possible remedial measures
·
Advise
ER on effectiveness of proposed remedial measures
·
Supervise
implementation of remedial measures
|
·
Notify
the Contractor
·
In
consultation with the ET and IEC, agree with the Contractor on the remedial
measures to be implemented
·
Supervise
implementation of remedial measures
|
·
Identify
source and investigate the non- conformity
·
Implement
remedial measures
·
Amend
working methods agreed with ER as appropriate
·
Rectify
damage and undertake any necessary replacement. Stop relevant portion of
works as determined by ER until the non- conformity is abated.
|
9.1.1 Landfill gas monitoring should be carried out to identify the
presence of landfill gas which may have migrated from the landfills to the works
area of the Project to ensure the safety of the Contractor’s personnel. The precautionary measures to minimise landfill gas risk
are summarised in the implementation schedule in Appendix C.
9.1.2 This section describes the landfill gas monitoring requirements at
the Project sites within the 250m Consultation Zone of Jordan Valley Landfill,
Ma Yau Tong Central Landfill and Ma Yau Tong West Landfill during the
construction and operational phases.
9.2
Monitoring during Construction and
Operational Phases
Construction
Phase
9.2.1 During construction phase, construction activities within 250m
Consultation Zone of Jordan Valley Landfill, Ma Yau Tong Central Landfill and
Ma Yau Tong West Landfill, it is recommended that pre-entry monitoring shall be
undertaken by the Contractor, where applicable, in accordance with the
requirements of the Factories and
Industrial Undertaking (Confined Spaces) Regulation. For excavations of 1m
depth or more, landfill gas should be monitored before entry and periodically
during the works. If drilling is required, the procedures for safety management
and working procedures described in the EPD’s Landfill Gas Hazard Assessment – Guidance Note should be adopted.
9.2.2 Intrinsically safe, portable gas detectors should be used when
working in any confined space where landfill gas could accumulate and result in
risk of explosion or asphyxiation. The monitoring equipment should alarm (both
audibly and visually) in the event that the concentrations of the following are
exceeded:
Ÿ
Methane – higher than 10% LEL;
Ÿ
Carbon dioxide – higher than 0.5%; and
Ÿ
Oxygen – lower than 18% by volume.
9.2.3 The monitoring equipment should be appropriately calibrated and able
to measure the following gases in the ranges indicated in Table 9.1 below:
Table 9.1 Measurement Ranges for Landfill Gas
|
Methane
|
0
– 100% LEL
and 0 – 100% v/v
|
|
Carbon
dioxide
|
0 –
100%
|
|
Oxygen
|
0
– 21%
|
9.2.4 All measurements in excavations should be made with the extended
monitoring tube located not more than 10 mm from the exposed ground surface. The
Contractor may elect to carry out monitoring via an automated monitoring
system. In this event, the gas levels specified in Table 9.2 (i.e. refer
to Section 9.3) shall be so programmed to automate the actions in the
table and in the event of the trigger levels being breached, to activate
suitable audible and visual warning devices.
Operational Phase
9.2.5 As this project comprises road works not construction of enclosed
buildings, the main precautionary measures throughout the operational phase
relate to inspection or maintenance of utilities / services within the 250m
Consultation Zones of the three landfills.
9.2.6 During operation, where service voids, manholes or inspection
chambers within the proposed sites are entered for maintenance, monitoring and
a checklist system of safety requirements should be performed before entry in
accordance with the Code of Practice on
Safety and Health at Work in Confined Spaces.
9.2.7 Maintenance /
utility companies should undertake a landfill gas surveillance exercise at
utility manholes/inspection chambers. The surveillance exercise should be
undertaken using an intrinsically safe portable instrument, appropriately
calibrated and capable of measuring the requirements as mentioned in Section
9.2.2. The monitoring of landfill gas should be undertaken throughout the
inspection of utility manholes / inspection chambers by the maintenance /
utility companies. Depending on the results of the measurements, actions
required will vary and should be set down by appropriately qualified person.
9.2.8 In addition, if any construction is required for maintenance work
during the operational stage, the responsible party should follow the
monitoring works recommend in the construction phase.
9.3.1 The Limit Levels and relevant Action Plans for landfill gas detected
in facilities and any on-site areas during construction are shown in Table
9.2 below:
Table 9.2 Limit Levels and Action Plan for
Landfill Gas
|
Parameter
|
Measurement
|
Action
|
|
Oxygen
|
< 19 %
|
·
Ventilate to restore oxygen to > 19 %
|
|
< 18 %
|
·
Stop works
·
Evacuate personnel/prohibit entry
·
Increase ventilation to restore oxygen to > 19
%
|
|
Methane
|
> 10% LEL (i.e. > 0.5% by volume)
|
·
Prohibit hot works
·
Ventilate to reduce methane to < 10% LEL
|
|
> 20% LEL (i.e. > 1% by volume)
|
·
Stop works
·
Evacuate personnel/prohibit entry
·
Increase ventilation to reduce methane to < 10
% LEL
|
|
Carbon Dioxide
|
> 0.5%
|
·
Ventilate to reduce carbon dioxide to < 0.5%
|
|
> 1.5%
|
·
Stop works
·
Evacuate personnel/prohibit entry
·
Increase ventilation to reduce carbon dioxide to
< 0.5%
|
Note:
Sources: Landfill Gas Hazard Assessment Guidance Note
LEL: Lower Explosive Limit
10.1.1
Site
inspection is one of the most effective tools to enforce the environmental
protection requirements at the works area by providing a direct mean to trigger
and enforce specified environmental protection and pollution control measures. Site
inspection should be undertaken regularly during the construction phase to
ensure that appropriate environmental protection and pollution control
mitigation measures are properly implemented for the activities associated with
the Project.
10.1.2
The
ET leader should be responsible for formulating the environmental site
inspection programme as well as the deficiency and remedial action reporting
system, and for carrying out the site inspections. The proposal for
rectification, if any, should be prepared by ET, agreed by the Contractor and
submitted to IEC and ER for approval.
10.1.3
Regular
site inspections should be carried out and led by the ER and attended by the
Contractor and ET at least once per week during the construction phase. The
areas of inspection should not be limited to the environmental conditions and
the pollution control and mitigation measures within the works area, it should
also review the environmental conditions of locations that are beyond the
boundary of the works area but are likely to be affected directly or indirectly
by the construction site activities of the Project. During the inspection, the
following information should be referred to:
Ÿ
The EIA Report and EM&A recommendations on
environmental protection and pollution control mitigation measures;
Ÿ
Ongoing results of the EM&A programme;
Ÿ
Works progress and programme;
Ÿ
Individual works methodology proposals (which should
include the proposal on associated pollution control measures);
Ÿ
Contract specifications on environmental protection
and pollution prevention control;
Ÿ
Relevant environmental protection and pollution
control legislations; and
Ÿ
Previous site inspection results undertaken by the
ET and others
10.1.4
The
Contractor should keep the ER and ET Leader updated with all relevant
environmental related information on the construction contract necessary for
him/her to carry out the site inspections. Site inspection results and
associated recommendations for improvements to the environmental protection and
pollution control efforts should be recorded and followed up by the Contractor
in an agreed time-frame. The Contractor should follow the procedures and
time-frame stipulated in the environmental site inspection, and the deficiency
and remedial action reporting system to be formulated by the ET Leader, to
report on any remedial measures subsequent to the site inspections.
10.1.5
The
ER, ET and the Contractor should also carry out ad hoc site inspections if
significant environmental problems are identified. Inspections may also be
required subsequent to receipt of an environmental complaint, or as part of the
investigation work, as specified in the Event and Action Plan for the EM&A
programme.
10.2.1
There
are statutory and contractual requirements on environmental protection and
pollution control with which construction activities must comply.
10.2.2
To
ensure that the workers are in compliance with the contractual requirements,
all method statements of works should be submitted by the Contractor to the ER
for approval and to the ET Leader for vetting to determine if sufficient
environmental protection and pollution control measures have been included. The
implementation schedule of mitigation measures is summarized in Appendix C.
10.2.3
The
ER and ET Leader should also review the progress and programme of the works to
check that relevant environmental legislations have not been violated, and that
any foreseeable potential for violating laws can be prevented.
10.2.4
The
Contractor should provide the update of the relevant documents to the ET Leader
so that works checking could be carried out effectively. The document should at
least include the updated Works Progress Reports, updated Works Programme, any
application letters for licences / permits under the environmental protection
legislations, and copies of all valid licences / permits. The site diary should
also be available for the inspection by the relevant parties.
10.2.5
After
reviewing the documentation, the ET Leader should advise the Contractor of any
non-compliance with contractual and legislative requirements on environmental
protection and pollution control so that they can timely take follow-up actions
as appropriate. If the follow-up actions may still result in violation of
environmental protection and pollution control requirements, the ER and ET
should provide further advice to the Contractor to take remedial actions to
resolve the problem.
10.2.6
Upon
receipt of the advice, the Contractor should undertake immediate action to
remedy the situation. The ER and ET should follow up to ensure that appropriate
action has been taken in order to satisfy contractual and legal requirements.
10.3.1
The
following procedures should be undertaken upon receipt of any environmental
complaint:
(i)
The Contractor to log complaint
and date of receipt onto the complaint database and inform the ER, ET and IEC
immediately;
(ii)
The Contractor to investigate,
with the ER and ET, the complaint to determine its validity, and assess whether
the source of the problem is due to construction works of the Project with the
support of additional monitoring frequency and stations, if necessary;
(iii)
The Contractor to identify
remedial measures in consultation with the IEC, ET and ER if a complaint is
valid and due to the construction works of the Project;
(iv)
The Contractor to implement the
remedial measures as required by the ER and to agree with the ET and IEC any
additional monitoring frequency and stations, where necessary, for checking the
effectiveness of the remedial measures;
(v)
The ER, ET and IEC to review
the effectiveness of the Contractor’s remedial measures and the updated
situation;
(vi)
The ET/Contractor to undertake
additional monitoring and audit to verify the situation if necessary, and
oversee that circumstances leading to the complaint do not recur;
(vii)
If the complaint is referred by
the EPD, the Contractor to prepare interim report on the status of the
complaint investigation and follow-up action stipulated above, including the
details of the remedial measures and additional monitoring identified or
already taken, for submission to EPD within the time frame assigned by the EPD;
and
(viii)
The ET to record the details of
the complaint, results of the investigation, subsequent actions taken to
address the complaint and updated situation including the effectiveness of the
remedial measures, supported by regular and additional monitoring results in
the monthly EM&A reports.
11.1.1
Types
of reports that the ET should prepare and submit include Baseline Monitoring
Report, Monthly EM&A Reports and Final EM&A
Review Report. In accordance with Annex 21 of the EIAO-TM, a copy of the
monthly and final review EM&A reports should be made available to the
Director of Environmental Protection.
11.1.2
Reports
can be provided in an electronic medium upon agreeing the format with the ER
and EPD. All the monitoring data (baseline and impact) should be submitted in
electronic medium. Sample data record sheets for air quality, noise, water and
landfill gas monitoring are shown in Appendix B1 to B4.
11.2.1
The
ET should prepare and submit a Baseline Environmental Monitoring Report within
10 working days after completion of the baseline monitoring works. It should be
first verified by the IEC before formal submission to EPD. Copies of the
Baseline Environmental Monitoring Report should be submitted to the IEC, ER and
EPD. The ET should liaise with the relevant parties on the exact number of
copies require.
11.2.2
The
Baseline Monitoring Report should include at least the following information:
Ÿ
Up
to half a page of executive summary;
Ÿ
Brief
description of project background information;
Ÿ
Drawings
showing locations of the baseline monitoring stations;
Ÿ
Monitoring
results (in both hard and diskette copies) together with the following
information:
-
Monitoring methodology
-
Name of the laboratory and types of equipment used and
calibration details
-
Parameters monitored
-
Monitoring locations (and depth)
-
Monitoring date, time, frequency and duration
- QA/QC results and
detection limits
Ÿ
Details
of influencing factors, including:
-
Major activities, if any, being carried out in the
Project site during the period
-
Weather conditions during the period
- Other factors which
might affect the monitoring results
Ÿ
Determination
of the Action and Limit Levels (AL levels) for each monitoring parameter and
statistical analysis of the baseline data;
Ÿ
Revisions
for inclusion in the EM&A Manual; and
Ÿ
Comments
and conclusions
11.3.1
The
results and findings of all EM&A works required in this Manual should be
recorded in the monthly EM&A reports prepared by the ET and endorsed by the
IEC. The first Monthly EM&A Report should be prepared and submitted to EPD
within a month after the major construction works commences with the
subsequently Monthly EM&A Reports due in 10 works day of the end of each
reporting month. Copies of each monthly EM&A report should be submitted to
each of the three parties: ER, IEC and EPD. Before submission of the first
monthly EM&A Report, the ET should liaise with the parties on the exact
number of copies and format of the monthly reports in both hard copy and
electronic copies.
11.3.2
The
ET Leader should review the number and location of monitoring stations and
parameters every six months, or on as needed basis, in order to cater for any
changes in the surrounding environment and the nature of works in progress.
First Monthly
EM&A Report
11.3.3
The
first Monthly EM&A Report should include at least but not limited to the
following:
(i)
Executive
summary (1-2 pages):
Ÿ
Breaches
of Action and Limit levels;
Ÿ
Complaint
log;
Ÿ
Notifications
of any summons and successful prosecutions;
Ÿ
Reporting
changes; and
Ÿ
Future key issues.
(ii)
Basic
project information:
Ÿ
Project
organization including key personnel contact names and telephone numbers;
Ÿ
Construction
programme;
Ÿ
Management
structure; and
Ÿ
Works undertaken during the reporting month.
(iii)
Environmental
status:
Ÿ
Advice
on the status of statutory environmental compliance, such as the status of
compliance with the EP conditions under the EIAO, submission status under the
EP and implementation status of mitigation measures;
Ÿ
Works
undertaken during the reporting month with illustrations (e.g. location of
works, etc.); and
Ÿ
Drawings showing the Project area, any
environmental sensitive receivers and the locations of the monitoring stations.
(iv)
Summary
of EM&A requirements:
Ÿ
All
monitoring parameters;
Ÿ
Environmental
quality performance limits (action and Limit levels);
Ÿ
Event
and Action Plans;
Ÿ
Environmental
mitigation measures, as recommended in the EIA Report; and
Ÿ
Environmental requirements in contract
documents.
(v)
Implementation
status:
Ÿ
Advice
on the implementation status of environmental protection and pollution
control/mitigation measures as recommended in the EIA Report.
(vi)
Monitoring
results (in both hard and diskette copies) together with the following
information:
Ÿ
Monitoring
methodology;
Ÿ
Name
of laboratory and types of equipment used and calibration details;
Ÿ
Monitoring
parameters;
Ÿ
Monitoring
locations;
Ÿ
Monitoring
date, time, frequency and duration;
Ÿ
Graphical
plots of the monitoring parameters in the reporting month annotated against the
following;
-
Major activities being carried out on site during
reporting period;
-
Weather conditions during the reporting period;
-
Any other factors which might affect the monitoring
results; and
-
QA/QC results and detection limits.
(vii)
Report
on non-compliance, complaints, notifications of summons and status of
prosecutions:
Ÿ
Record
of all non-compliance (exceedances) of the environmental quality performance
limits (Action and Limit levels);
Ÿ
Record
of all complaints received (written or verbal), including locations and nature
of complaints investigation, liaison and consultation undertaken, actions and
follow-up procedures taken, results and summary;
Ÿ
Record
of all notification of summons and successful prosecutions for breaches of
current environmental protection / pollution control legislation, including
locations and nature of the breaches, investigation, follow-up actions taken,
results and summary;
Ÿ
Review
of the reasons for and the implications of non-compliances, complaints, summons
and prosecutions including review of pollution sources and working procedures;
and
Ÿ
Description
of the actions taken in the event of non-compliance and deficiency reporting
and any follow-up procedures related to earlier non-compliance.
(viii)
Others:
Ÿ
An
account of the future key issues as reviewed from the works programme and
method statements of works;
Ÿ
Advice
on the solid and liquid waste management status;
Ÿ
A
forecast of the works programme, impact predictions and monitoring schedule for
the next three months;
Ÿ
Compare
the EM&A data in the reporting month with the EIA predictions and annotate
with explanation for any discrepancies; and
Ÿ
Comments
(e.g. the effectiveness and efficiency of the mitigation measures),
recommendations (for example, any improvement in the EM&A programme) and
conclusions.
Subsequent Monthly
EM&A Reports
11.3.4
Subsequent
monthly EM&A Reports during the construction phase and specified
operational phase monitoring period should include the information:
(i)
Executive
summary (1-2 pages):
Ÿ
Breaches
of Action and Limit levels;
Ÿ
Complaint
log;
Ÿ
Notifications
of any summons and successful prosecutions;
Ÿ
Reporting
changes; and
Ÿ
Future
key issues
(ii)
Basic
project information:
Ÿ
Project
organization including key personnel contact names and telephone numbers;
Ÿ
Construction
programme;
Ÿ
Management
structure; and
Ÿ
Works undertaken during the reporting month.
(iii)
Environmental
status:
Ÿ
Advice
on the status of statutory environmental compliance, the status of compliance
with the EP conditions under the EIAO, submission status under the EP and
implementation status of mitigation measures;
Ÿ
Works
undertaken during the reporting month with illustrations (such as location of
works, etc.); and
Ÿ Drawings showing
the Project area, any environmental sensitive receivers and the locations of the monitoring
stations.
(iv)
Implementation
status:
Ÿ
Advice
on the implementation status of environmental protection and pollution control/mitigation
measures as recommended in the EIA Report.
(v)
Monitoring
results (in both hard and diskette copies) together with the following
information:
Ÿ
Monitoring
methodology;
Ÿ
Name
of the laboratory and types of equipment used and calibration details;
Ÿ
Monitoring
parameters;
Ÿ
Monitoring
locations (and depth);
Ÿ
Monitoring
date, time, frequency and duration;
Ÿ
Graphical
plots of the monitoring parameters in the reporting month annotated against the
following;
-
Major activities being carried out on site during the
reporting period;
-
Weather conditions during the reporting period;
-
Any other factors which might affect the monitoring
results; and
-
QA/QC results and detection limits.
(vi)
Report
on non-compliance, complaints, notifications of summons and status of
prosecutions:
Ÿ
Record
of all non-compliance (exceedances) of the environmental quality performance
limits (Action and Limit levels);
Ÿ
Record
of all complaints received (written or verbal), including the locations and
nature of complaints investigation, liaison and consultation undertaken,
actions and follow-up procedures taken, results and summary;
Ÿ
Record
of all notification of summons and successful prosecutions for the breaches of
current environmental protection / pollution control legislation, including
locations and nature of the breaches, investigation, follow-up actions taken,
results and summary;
Ÿ
Review
of the reasons for and the implications of non-compliance, complaints, summons
and prosecutions including review of pollution sources and working procedures;
and
Ÿ
Descriptions
of the actions taken in the event of non-compliances and deficiency reporting
and any follow-up procedures related to earlier non-compliance.
(vii)
Others:
Ÿ
An
account of the future key issues as reviewed from the works programme and
method statements of works;
Ÿ
Advice
on the solid and liquid waste management status;
Ÿ
A
forecast of the works programme, impact predictions and monitoring schedule for
the next three months;
Ÿ
Compare
the EM&A data in the reporting month with the EIA predictions and annotate
with explanation for any discrepancies; and
Ÿ
Comments
(e.g. the effectiveness and efficiency of the mitigation measures),
recommendations (for example, any improvement in the EM&A programme) and
conclusions.
(viii)
Appendix:
Ÿ
Action
and Limit levels;
Ÿ
Graphical
plots of trends of the monitoring parameters over the past four reporting
periods for the representative monitoring stations annotated against the
following:
-
Major Project activities being carried out on site
during the reporting period;
-
Weather conditions during the reporting period; and
-
Any other factors that might affect the monitoring
results.
Ÿ
Monitoring
schedule for the present and next reporting period;
Ÿ
Cumulative
statistics on complaints, notifications of summons and successful prosecutions;
Ÿ
Outstanding issues and deficiencies.
11.4.1
The
EM&A programme should be terminated upon completion of the construction works
and specified operational phase monitoring period so that the potential to cause
significant environmental impacts is ceased and the post-project monitoring is
concluded.
11.4.2
Prior
to the proposed termination, the proposed termination may be required to
consult related local community and should be endorsed by the IEC, ER and the
Project Proponent prior to final approval from the Director of Environmental
Protection.
11.4.3
The
ET Leader should prepare and submit the Final EM&A Report which should
contain at least the following information:
(i)
Executive
summary (1-2 pages);
(ii)
Drawings
showing the Project area, environmental sensitive receivers and locations of
the monitoring stations;
(iii)
Basic
project information including a synopsis of the project organisation, contacts
of key management, and a synopsis of works undertaken during the course of the
Project;
(iv)
A
brief summary of EM&A requirements including;
Ÿ
Environmental
mitigation measures, as recommended in the EIA Report;
Ÿ
Environmental
impact hypotheses tested;
Ÿ
Environmental
quality performance limits (Action and Limit levels);
Ÿ
All
monitoring parameters; and
Ÿ
Event
and Action Plans;
(v)
A
summary of the implementation status of environmental protection and pollution
control / mitigation measures, as recommended in the EIA Report, summarised in
the updated implementation schedule;
(vi)
Graphical
plots and the statistical analysis of the trends of monitoring parameters over
the course of the Project, including the post-project monitoring for all
monitoring stations annotated against:
Ÿ
The
major activities being carried out on site during the reporting period;
Ÿ
Weather
conditions during the reporting period; and
Ÿ
Any
other factors which might affect the monitoring results;
(vii)
A
summary of non-compliance (exceedances) of the environmental quality
performance limits (Action and Limit levels);
(viii)
A
review of the reasons for and the implications of non-compliance including
review of pollution sources and working procedures as appropriate;
(ix)
A
description of the actions taken in the event of non-compliance;
(x)
A
summary record of all complaints received (written or verbal) for each media,
liaison and consultation undertaken, actions and follow-up procedures taken;
(xi)
A
summary record of notifications of summons and successful prosecutions for
breaches of the current environmental protection / pollution control
legislation, locations and nature of the breaches, investigation follow-up
actions taken and results;
(xii)
A
review of the validity of EIA predictions and identification of shortcomings of
the recommendations proposed in the EIA Report; and
(xiii)
Comments
(for example, a review of the effectiveness and efficiency of the mitigation
measures and of the performance of the environmental management system, that
is, of the overall EM&A programme);
(xiv) Recommendations and conclusions (for
example, a review of success of the overall EM&A programme to
cost-effectively identify deterioration and to initiate prompt effective
mitigation action when necessary).
11.5.1
No
site-based documents (such as monitoring field records, laboratory analysis
records, site inspection forms, etc.) are required to be included in the
EM&A reporting documents. However, any such document should be properly
maintained by the ET and be ready for inspection upon request. All relevant
information should be clearly and systematically recorded in the document.
Monitoring data should also be recorded in magnetic media form, and the
software copy must be available upon request. All documents and data should be
kept for at least one year following the completion of the construction phase EM&A for each construction contract.
11.6.1
With
reference to the Event and Actions Plans, when the environmental quality
performance limits are exceeded and if they are proven to be valid, the ET
should immediately notify the IEC and EPD, as appropriate. The notification
should be followed up with advice to the IEC and EPD on the results of the
investigation, proposed actions and success of the actions take, with any
necessary follow-up proposals. A sample template for interim notification is
presented in Appendix D.