Page
1.5 Scope
of the EM&A Programme
1.6 Organisation
& Structure of the EM&A
1.7 Structure
of the EM&A Manual
3.3 Odour Patrol during Construction Phase
3.6 Action and Limit Levels for Odour Patrol
4.4 Construction Noise Monitoring
4.5 Event and Action Plan for Noise
5.2 Construction Phase Monitoring
7.4 Construction and Post-Construction Phase Audit
8.2 Compliance with Legal & Contractual Requirements
9.2 Baseline Monitoring Report
9.4 Quarterly EM&A Summary Reports
9.7 Electronic Reporting of EM&A Information
9.8 Interim Notifications of Environmental Quality Limit
Exceedances
END OF TEXT
LIST
OF TABLES
Table 1.1 Scale
of Proposed Project
Table 1.2 Tentative
Construction Schedule
Table 1.3 Summary
of EM&A Parameters
Table 1.4 Contact
Information - to
be completed prior to commencement of construction
Table 3.1 Parameter,
Location and Frequency for Odour Patrol
Table 3.2 Odour
Intensity Level
Table 3.3 Action
and Limit Levels for Odour
Table
3.4 Event/Action Plan for Odour Monitoring
during Construction Phase of the Project
Table 4.1 Representative
Noise Sensitive Receivers (NSRs)
Table 4.2 Action
and Limit Levels for Construction Noise Monitoring
Table 4.3 Events
and Actions for Construction Noise Monitoring
Table
5.1 Water Quality Monitoring Parameters and Frequency during the
Construction Phase
Table
5.2 Locations of Water Quality Monitoring Stations for the Construction
Phase Monitoring
Table
5.3 Action and Limit Level for Water Quality Monitoring during the
Construction Phase of the Project (based on the result of the Baseline Report)
Table
5.4 Event and Action Plan for Water Quality Monitoring during the
Construction Phase of the Project
Table
7.1 Construction/Post-Construction Phase Audit Checklist
Table
7.2 Event/Action Plan
LIST OF FIGURES
Figure
1.1 General Location Plan of the Project
Figure
1.2 General Layout Plan
Figure 1.3 Schematic
Diagram for Dry Weather Flow Interception System
Figure
4.1 Noise Level Monitoring Stations
Figure 5.1 Locations
of Water Quality Monitoring Stations
ANNEXES
Annex A Implementation Schedule of Environmental Protection Measures for the Project
Annex B Noise Monitoring Field Record Sheet
Annex C Complaint Log
Annex D Sample Template for Interim Notifications of Environmental Quality Limits Exceedances
1.1.1
The existing Yuen Long Town Nullah (YLTN) was constructed in
mid 1960s to alleviate the flooding risks in the Northwest New Territories and
is one of the oldest drainage systems in Hong Kong. Most of the nullah sections were originally
natural water courses, which have been straightened and modified. The nullahs now primarily consist of
channelized concrete bedding and embankments.
1.1.2
With the increasing aspirations for a better living
environment, the local residents of Yuen Long are
requesting the Government to improve the early design of the YLTN, which is
considered no longer in line with the changing townscape of Yuen Long. In addition, odour
from the nullah due to the polluted dry weather flow is causing nuisance to the
nearby residents.
1.1.3 In relation to the above, the Drainage Services Department (DSD) of the Government of the Hong Kong Special Administrative Region (HKSARG) commissioned the “Agreement No. CE 39/2006 (DS) Rehabilitation of Yuen Long Town Nullahs - Feasibility Study” to investigate different options for improving the design and environmental conditions of the YLTN. The recommendation from the Feasibility Study to intercept the polluted dry weather flow to the Town Centre Section of YLTN provides the basis of scope of improvements for the current Project. Details of the Project are provided in Section 1.3 below.
1.2.1
Black & Veatch Hong Kong Limited
(B&V) was commissioned by DSD to undertake the Environmental Impact
Assessment (EIA) Study of the Project (the Assignment). An EIA Study addressing the requirements of
the
1.2.2
The Manual has been prepared in
accordance with the EIA Study Brief (No. ESB - 260/2013) and the Technical Memorandum of the Environmental
Impact Assessment Process (EIAO-TM). The purpose of the Manual is to provide
information, guidance and instruction to personnel charged with environmental
duties and those responsible for undertaking EM&A work during construction
and operation of the Project. It
provides systematic procedures for monitoring and auditing the environmental
performance of the Project. This Manual
contains the following information:
· Appropriate
background information on the construction of the Project with reference to
relevant technical reports;
· Responsibilities of
the Contractor(s), Environmental Team (ET), and the Independent Environmental
Checker (IEC) with respect to the EM&A requirements during the
implementation of the Project;
· Project organisation;
· Requirements with
respect to the construction and operational programme schedule and the
necessary EM&A programme to track the varying environmental impact;
· Descriptions of the
parameters to be monitored and criteria through which performance will be assessed
including: monitoring frequency and methodology, monitoring locations
(typically, the location of sensitive receivers as listed in the EIA),
monitoring equipment lists, event contingency plans for exceedances of
established criteria and schedule of mitigation and best practice methods for
reduced adverse environmental impacts;
· Procedures for
undertaking on-site environmental performance audits as a means of ensuring
compliance with environmental criteria;
· Details of the
methodologies to be adopted including field, laboratory and analytical
procedures, and details on quality assurance and quality control (QA/QC)
programme;
· Preliminary
definition of Action and Limit (A/L) levels;
· Establishment of
Event and Action plans (EAPs);
· Requirements for
reviewing pollution sources and working procedures required in the event of
exceedances of applicable environmental criteria and/or receipt of complaints;
· Requirements for
presentation of EM&A data and appropriate reporting procedures; and
· Requirements for
review of EIA predictions and the effectiveness of the mitigation measures and
the EM&A programme.
Project Scope
1.3.1
The Project comprises improvement works for the Town Centre
Section of the YLTN by intercepting the polluted dry weather flow for treatment
at the YLSTW. The general
location plan of the Project is shown in Figure
1.1.
1.3.2
The improvement works for the Town Centre
Section of the YLTN mainly comprises of the following items and the
general layout plan is shown in Figure 1.2.
a) Construction of DWF interceptors along and within the YLTN;
b) Construction of continuous u-channels adjacent to either side of the retaining walls;
c) Construction of a DWF pumping station with capacity of 18,000 m3/day; and
d) Laying twin rising mains of approximately 400 m long to convey the intercepted DWF to the YLEPP (upgraded from the existing YLSTW).
1.3.3
YLTN is concrete-lined with a total length of approximately 12
kilometers dividing into five sections namely Downstream Section, Town Centre
Section, Upstream Section, West Nullah and East Nullah.
1.3.4
The DWFI system adopts continuous
u-channels/pipes adjacent to either side of the retaining walls to collect
and convey the expedient discharges from the drainage outlets. The system was
further optimised with external covers, screening the
presence of the drainage outlet to minimise visual
and odour impact as far as practicable.
1.3.5
The latest Interception Scheme for DWF in YLTN is presented
in Figure 1.3.
The DWFI system will be constructed to intercept the polluted dry weather flow
being discharged to YLTN from the Town Centre Section (600 m3/day), East
Nullah (16,300 m3/day) and upstream San Hui Nullah (1,000 m3/day). Approximately 60 nos. of existing storm water
outfalls within the Town Centre Section will be intercepted by the proposed
system.
1.3.6
The DWF from upstream Kung Um Road Nullah
(13,100 m3/day) will not be intercepted at the upstream as such to
maintain water flow within the Town Centre Section during non-rainy days. The
DWF from West Nullah (3,600 m3/day) will be intercepted to proposed u-channel/pipe
but not treated in YLEPP. Instead, it will be conveyed to existing desilting
basin and eventually, together with the DWF from upstream Kung Um Road Nullah,
pumped across the rubber dam and towards Shan Pui
River via the existing low flow pumping station, which conveys DWF on the
nullah across the inflatable dam. This existing low flow pumping station is
located at the downstream at Shan Pui Ho Road East.
1.3.7
The DWFI system will convey the first 18,000 m3 of
DWF being intercepted each day to the YLEPP for treatment. When the above limit is reached, the exceeded
DWF will be overflown directly or as close as possible to the desilting
basin of the existing low flow pumping station (LFPS) and mixed
with the DWF of Kung Um Road Nullah and West Nullah before being
discharged to Shan Pui River through the existing LFPS.
1.3.8
The intercepted/diverted DWF will flow by
gravity to a proposed DWF pumping station to be constructed downstream near the
existing low flow pumping station at Shan Pui Ho Road
East. The proposed DWF pumping station
will be a single storey building structure about 17 m
in length, 10 m in width and 7 m in height. It comprises an underground covered
inlet chamber, screen chamber with mechanical screen, wet well, ventilation
systems, odour control facilities and various
associated facilities. Twin rising mains of approximately 400 m long will be
laid which will be used to convey the first 18,000 m3 of DWF each
day from the pumping station to the existing sewers, located at Wang Lok
Street, leading to the YLEPP. The
diameter of the rising main is around 600 mm.
1.3.9 The scale of the proposed Project is summarized in Table 1.1.
Table 1.1 Scale
of Proposed Project
|
Nature of Work |
Details (Dimensions) of
Works |
|
DWFI
System |
1.
Construction of DWF
interceptors along and within the YLTN; 2.
Construction of
continuous 1000 mm × 800 mm u-channels adjacent to either side of the retaining
walls; 3. Construction
of a DWF pumping station (17m(L) × 10m(W) × 7m(H)) with capacity of 18,000m3/day;
and 4.
Laying twin rising
mains of approximately 400 m long with 600 mm diameter each. |
Construction Programme
1.3.10 The construction programme for the Project is tentatively expected to commence in second quarter of 2021 for completion in early 2026. The Project will be constructed in sections as shown in Figure 1.2. The tentative key milestone dates are tabulated in Table 1.2 below.
Table 1.2 Tentative Construction Schedule
Construction Works
1.3.11
Construction of the proposed Project comprises the following
key activities:
· Ground breaking;
· Excavation works;
· Pipe laying works;
· Backfilling works;
and
· Final re-instatement
by in-situ concreting.
1.4.1
The broad objective of this Manual is to define the procedures of the
EM&A programme for monitoring the environmental performance of the Project
during design, construction and operation.
The construction and operational impacts arising from the implementation
of the Project are described in the EIA Report.
The EIA Report also specifies mitigation measures and good construction
practices that will be needed to comply with the environmental criteria or
further minimise the potential impacts.
These mitigation measures and their implementation requirements are
presented in the Implementation Schedule of Mitigation Measures (see Annex
A).
1.4.2
The main objectives of the EM&A programme are to:
· Provide baseline
information against which any short or long term
environmental impacts of the projects can be determined;
· Provide an early
indication should any of the environmental control measures or practices fail
to achieve the acceptable standards;
· Monitor the
performance of the Project and the effectiveness of mitigation measures;
· Verify the
environmental impacts identified in the EIA;
· Determine Project
compliance with regulatory requirements, standards and government policies;
· Take remedial action
if unexpected results or unacceptable impacts arise; and
· Provide data to
enable an environmental audit to be undertaken at regular intervals.
1.4.3
The EIA Study indicates that an EM&A programme will be required for the pre-construction,
construction and operation phases of this Project. A summary of the requirements for each of the
environmental parameters is detailed in Table 1.3.
Table 1.3 Summary of EM&A Parameters
|
Parameter |
Phases |
||
|
Pre-Construction Phase |
Construction Phase |
Operation Phase |
|
|
Air Quality (Odour) |
M |
M (a) + SI (b) |
- |
|
Noise |
M |
M + SI |
- |
|
Water Quality |
M |
M + SI |
- |
|
Waste |
- |
SI |
- |
|
Landscape and Visual |
SI (c) |
SI |
SI |
|
Notes: (a)
M – Environmental monitoring
(b)
SI - Site
inspection (c)
Prior to construction, photographic record of the Project Site at the
time of the Contractor’s possession should be prepared. |
|||
1.5.1 The scope of this EM&A programme is to:
· Establish baseline
odour patrol at Project Site boundary and implement monitoring requirements for
odour patrol monitoring programme during construction;
· Establish baseline noise
levels at specified locations and implement monitoring requirements for noise
monitoring programme during construction;
· Establish baseline
water quality levels for water quality monitoring and implement monitoring
requirements for water quality monitoring programme during construction;
· Implement inspection
and audit requirements for air quality, noise, water quality, waste management and
landscape and visual impacts;
· Liaise with, and
provide environmental advice (as requested or when otherwise necessary) to
construction site staff on the significance and implications of the
environmental monitoring data;
· Identify and resolve
environmental issues and other functions as they may arise from the works;
· Check and quantify
the Contractor(s)’s overall environmental performance, implementation of Event
and Action Plans (EAPs), and remedial actions taken to mitigate adverse
environmental effects as they may arise from the works;
· Conduct monthly
reviews of monitored impact data as the basis for assessing compliance with the
defined criteria and to verify that necessary mitigation measures are
identified and implemented, and to undertake additional ad hoc monitoring and
auditing as required by special circumstances;
· Evaluate and
interpret environmental monitoring data to provide an early indication should
any of the environmental control measures or practices fail to achieve the
acceptable standards, and to verify the environmental impacts predicted in the
EIA;
· Manage and liaise
with other individuals or parties concerning other environmental issues deemed
to be relevant to the construction process;
· Conduct regular site inspections
and audits of a formal or informal nature to assess:
o the level of the Contractor’s general environmental awareness;
o the Contractor’s
implementation of the recommendations in the EIA and their contractual
obligations;
o the Contractor’s
performance as measured by the EM&A;
o the need for specific
mitigation measures to be implemented or the continued usage of those
previously agreed; and
o to advise the site
staff of any identified potential environmental issues;
· Produce monthly
EM&A reports which summarise EM&A data, with full interpretation
illustrating the acceptability or otherwise of any environmental impacts and
identification or assessment of the implementation status of agreed mitigation
measures.
1.6.1 The EM&A will require the involvement of the Project Proponent (DSD), Engineer Representative (ER), an ET, an IEC and the Contractor(s). The roles and responsibilities of the various parties involved in the EM&A process are further expanded in the following section.
Project
Organisation
1.6.2 DSD will establish an ET to conduct the site inspection and monitoring and, to provide specialist advice on implementation of environmental responsibilities.
1.6.3 The ET will have previous relevant experience with managing similarly sized EM&A programmes and the ET Leader will be a recognised environmental professional, with a minimum of seven years relevant experience in impact assessments and EM&A programmes. The ET Leader will be responsible for, and in charge of, the ET; and will be the person responsible for executing the EM&A requirements, and to provide advice (if required) on environmental clauses for Contract Specifications of the Project.
1.6.4 DSD will appoint an IEC to verify and validate/ audit the environmental performance of the Contractor(s) and works of the ET, and to maintain strict control of the EM&A process. The IEC will have previous relevant experience with checking and auditing similarly sized EM&A programmes and the IEC will be a recognised environmental professional, with a minimum of seven years relevant experience in impact assessments and EM&A programmes.
Roles
& Responsibilities
1.6.5 Roles and responsibilities of DSD and their ER, Contractor(s), the ET and the IEC are detailed in Sections 1.6.6 through 1.6.10.
1.6.6 DSD will:
· Establish an ET to
undertake monitoring, laboratory analysis and reporting of environmental
monitoring data, and site inspection of construction works; and
· Employ an IEC to
audit and verify the overall environmental performance of the works and to
assess the effectiveness of the ET in their duties.
1.6.7
The ER of DSD will:
· Supervise the
Contractor’s activities and confirm that the requirements in the EM&A Manual
and the Contract Documents are fully complied with;
· Develop appropriate
contract clauses to confirm that the Contractor(s) will have qualified
professionals to interface with the DSD/ ER / ET /IEC to fulfil the EIA/EP
requirements;
· Inform the
Contractor(s) when action is required to reduce impacts in accordance with the
EAPs;
· Adhere to the
procedures for carrying out complaint investigation; and
· Participate in joint
site inspections undertaken by the ET and IEC.
1.6.8 The Contractor(s) are responsible to:
· Employ an ET to undertake
monitoring, laboratory analysis and reporting of environmental monitoring data,
and site inspection of construction works
· Work within the scope
of the construction contract and other regulatory requirements;
· Provide
assistance to the ET in carrying out environmental monitoring and site inspections;
· Submit proposals on
mitigation measures in case of exceedances of the A/L levels in accordance with
the EAPs;
· Implement measures to
reduce impact where A/L levels are exceeded;
· Implement the corrective
actions instructed by DSD/ER/ET/IEC;
· Participate in the
site inspections undertaken by the ET and the IEC, as required, and undertake
any corrective actions instructed by DSD/ER/ETL/IEC; and
· Adhere to the
procedures for carrying out complaint investigation.
1.6.9 The ET will:
· Monitor various
environmental parameters as required in this Manual;
· Assess the EM&A
data and review the success of the EM&A programme in determining the
adequacy of the mitigation measures implemented and the validity of the EIA
predictions as well as identify any adverse environmental impacts before they arise;
· Carry out regular
site inspection to investigate the Contractor’s site practice, equipment and
work methodologies with respect to pollution control and environmental mitigation,
and effect proactive action to pre-empt issues;
· Review the
Contractor’s working programme and methodology, and comment as necessary;
· Review and prepare
reports on the environmental monitoring data and site environmental conditions;
· Report on the environmental
monitoring results and conditions to the IEC, Contractor(s), ER, DSD and EPD;
· Recommend suitable
mitigation measures to the Contractor(s) in the case of exceedance of A/L
levels in accordance with the EAPs; and
· Adhere to the
procedures for carrying out complaint investigation.
1.6.10 The IEC will:
· Review and audit the
implementation of the EM&A programme and the overall level of environmental
performance being achieved;
· Arrange and conduct
monthly independent site audits of the works;
· Validate and confirm
the accuracy of monitoring results, monitoring equipment, monitoring stations,
monitoring procedures and locations of sensitive receivers;
· Audit the EIA
recommendations and requirements against the status of implementation of
environmental protection measures on site;
· On an as needed
basis, audit the Contractor’s construction methodology and agree the
appropriate, reduced impact alternative in consultation with DSD, the ER, the
ET and the Contractor(s);
· Adhere to the
procedures for carrying out complaint investigation;
· Review the
effectiveness of environmental mitigation measures and project environmental
performance including the proposed corrective measures;
· Review EM&A
report submitted by the ET leader and feedback audit results to ET by signing off
relevant EM&A proformas; and
· Report the findings
of site audits and other environmental performance reviews to DSD, ER, ET, EPD
and the Contractor(s).
Key
Contact
1.6.11
Key contact information, to be updated when details are available, will
be provided in a similar format as in Table
1.4.
Table 1.4 Contact
|
Name |
Position |
Telephone |
Facsimile |
E-mail |
|
DSD
– EP Holder |
||||
|
To
be confirmed ER To
be confirmed |
|
|
|
|
|
Contractor(s)
|
||||
|
To
be confirmed |
|
|
|
|
|
ET
|
||||
|
To
be confirmed |
|
|
|
|
|
IEC
|
||||
|
To
be confirmed |
|
|
|
|
1.7.1 The remainder of the Manual is organized as follows:
· Section 2 lists the EM&A general requirements;
· Section 3 describes the EM&A requirements for air quality;
· Section 4 provides the EM&A requirements for noise;
· Section 5 provides the EM&A requirements for water quality;
· Section 6 describes the audit requirements for waste management;
· Section 7 describes the audit requirements for landscape and visual;
· Section 8 describes the scope and frequency of environmental site inspection; and
· Section 9 details the reporting requirements for the EM&A programme.
· Annex A includes Implementation Schedule of Mitigation Measures.
· Annex B provides a Construction Phase Noise Monitoring Field Record Sheet.
· Annex C provides the compliant log.
· Annex D provides sample template for interim notifications of environmental quality limits exceedances
2.1.1
This section describes the general requirements of the EM&A
programme for the Project. The scope of
the programme is developed with reference to the findings and recommendations
of the EIA Report.
General
2.2.1 Potential environmental impacts, which were identified during the EIA process and are associated with the construction phase of the Project, will be addressed through the monitoring and controls specified in this Manual and in the construction contracts.
2.2.2 During the construction phase of the Project, air quality, noise and water quality will be subject to EM&A, whilst environmental audit being undertaken for construction waste management and landscape and visual as recommended in the EIA. Monitoring of the effectiveness of the mitigation measures will be achieved through the environmental monitoring programme as well as through site inspections. The inspections will include within their scope, mechanisms to review and assess the Contractor(s)’s environmental performance, ensuring that the recommended mitigation measures have been properly implemented, and that the timely resolution of received complaints are managed and controlled in a manner consistent with the recommendations of the EIA Report.
Environmental Monitoring
2.2.3
The environmental monitoring work throughout the
Project period will be carried out in accordance with this EM&A and
reported by the ET. Monitoring works
will cover air quality, noise and water quality and will form an important part
of the whole EM&A programme.
Action and Limit (A/L) Levels
2.2.4 A/L Levels are defined levels of impact recorded by the environmental monitoring activities which represent levels at which a prescribed response is required. These Levels are quantitatively defined later in the relevant sections of this Manual and described in principle below:
· Action Levels: levels beyond which there is a clear indication of a deteriorating environmental conditions for which appropriate remedial actions are likely to be necessary to prevent environmental quality from falling outside the Limit Levels, which would be unacceptable; and
· Limit Levels: statutory and/or agreed contract limits stipulated in the relevant pollution control ordinances, Hong Kong Planning Standards and Guidelines (HKPSG) or Environmental Quality Objectives established by the EPD. If these are exceeded, works will not proceed without appropriate remedial action, including a critical review of plant and working methods.
Event and Action Plans (EAPs)
2.2.5 The purpose of the EAPs is to provide, in association with the monitoring and audit activities, procedures for ensuring that if any significant environmental incident occurs, the cause will be quickly identified and remediated. This also applies to the exceedances of A/L Levels identified in the EM&A programme.
Site Inspections & Audits
2.2.6 In addition to air quality, noise and water quality monitoring as a means of assessing the ongoing performance of the Contractor(s), the ET will undertake site inspections of on-site practices and procedures every week. The primary objective of the inspection programme will be to assess the effectiveness of the environmental controls established by the Contractor(s) and the implementation of the environmental mitigation measures recommended in the EIA Report. The IEC will undertake monthly site audits to assess the performance of the Contractor(s) and the effectiveness of the ET.
2.2.7 Whilst the inspection and audit programme will complement the monitoring activity, the criteria against which inspection/ audits to be undertaken will be derived from the Clauses within the Contract Documents which seek to enforce the recommendations of the EIA Report and the Manual.
2.2.8 The findings of site inspections and audits will be made known to the Contractor(s) at the time of the inspection to enable the rapid resolution of identified non-conformities. Non-conformities, and the corrective actions undertaken, will also be reported in the monthly EM&A Reports.
2.2.9 Section 8 of this Manual presents details of the scope and frequency of on-site inspections and defines the range of issues that the audit protocols will be designed to address.
Enquiries, Complaints and Requests for
2.2.10 Enquiries, complaints and requests for information may occur from a wide range of individuals and organisations including members of the public, Government departments, the press and television media and community groups.
2.2.11 Enquiries, complaints and requests for information concerning the environmental effects of the construction works, irrespective of how they are received, will be reported to DSD and the ER and directed to the ET which will set up procedures for the handling, investigation and storage of such information. The following steps will then be followed:
(1) The ET Leader will notify DSD and the ER of the nature of the enquiry.
(2) An investigation will be initiated to determine the validity of the complaint and to identify the source(s) of the issue.
(3) The Contractor(s) will undertake the following steps, as necessary:
· investigate and identify source(s) of the issue;
· if considered necessary by DSD following consultation with the ER and IEC, undertake additional monitoring to verify the existence and severity of the alleged complaint;
· liaise with EPD and IEC to identify remedial measures;
· implement the agreed mitigation measures;
· repeat the monitoring to verify effectiveness of mitigation measures; and
· repeat review procedures to identify further practical areas of improvement if the repeat monitoring results continue to substantiate the complaint.
(4) The outcome of the investigation and the action taken will be documented on a complaint log (see Annex C). A formal response to each complaint received will be prepared by the Contractor(s) within five working days and submitted to DSD, in order to notify the concerned person(s) that action(s) has been taken.
(5) Enquires which trigger this process will be reported in the monthly EM&A Reports which will include results of inspections undertaken by the Contractor(s), and details of the measures taken, and additional monitoring results (if deemed necessary). It should be noted that the receipt of complaint or enquiry will not be, in itself, a sufficient reason to introduce additional mitigation measures.
2.2.12 The complainant will be notified of the findings, and audit procedures will be put in place to verify that the issue does not recur.
Reporting
2.2.13 Baseline
and impact monitoring, monthly, quarterly and final reports will be prepared by
the ET on behalf of DSD and certified by the ET Leader and verified by the
IEC. The reports will be submitted to
the Contractor(s), ER, DSD and EPD. The
monthly EM&A Reports will be prepared and submitted within two weeks of the
end of each calendar month.
Cessation of EM&A
2.2.14 The cessation of EM&A programme is subject to the satisfactory completion of the Final EM&A Report, agreement with the IEC and approval from EPD.
2.3.1
Based
on recommendation from the EIA, audit of landscape and visual impacts are
required during the operation phase of the Project.
2.3.2
DSD
will manage the operation and maintenance of the Project through Contractor(s).
The Contractor(s) shall ensure that all
conditions of the EP, including operation phase EM&A, are fulfilled. The ET and IEC commissioned by DSD /
Contractors will undertake the EM&A as per requirements listed in Section 1.6.9 and Section 1.6.10, respectively, during operation phase.
3.1.1
According
to the EIA, no unacceptable air quality impact is anticipated
during both construction and operation phases of the Project. Therefore, air and dust monitoring programmes are not considered necessary during either the
construction or operation phase. The mitigation measures
recommended for dust and odour control are provided in Annex
A.
3.1.2
Odour
nuisance may occur during construction of the Project. An odour monitoring
programme is thus recommended during the construction
phase to ensure that the construction of the Project will not cause
unacceptable odour impact on the Air Sensitive
Receivers (ASRs).
3.1.3
In addition, regular environmental
site audit is required during the construction phase to ensure the proper
implementation of control measures.
Detailed site audit requirements are specified in Section 8.
3.2.1
Weekly
site inspection will be undertaken by the ET to ensure that control measures as
proposed in the EIA Report are properly implemented to reduce potential air
quality impacts during construction.
3.3.1
Odour patrol should be carried out during the
construction phase of the Project.
3.3.2
Monthly odour patrol
should be conducted by trained personnel / competent persons (at least 2 odour patrol members).
The odour patrol members should:
·
Have their individual odour
threshold of n-butanol in nitrogen gas in the range of 20 to 80 ppb/v required
by the European Standard Method (EN 13725);
·
Be free from any respiratory diseases;
·
Not be allowed to smoke, eat, drink (except water)
or use chewing gum or sweets 30 minutes before and during the odour patrol; and
·
Take great care not to cause any interference with
their own perception or that of others by lack of personal hygiene or the use
of perfumes, deodorants, body lotions or cosmetics.
3.3.3
The trained personnel/competent persons should use
their nose (olfactory sensors) to sniff odours along
the patrol route. The main odour emission sources and the areas affected by the odour nuisance should be identified.
3.3.4
The parameter, location and frequency of odour patrol are summarized in Table 3.1.
Table 3.1 Parameter, Location and Frequency for Odour Patrol
|
Patrol
Locations |
Patrol
Frequency |
Parameters |
|
Patrol along Project Site Boundary |
Monthly.
A total of two times on the monitoring day, in the morning and
afternoon, respectively. |
Odour Intensity (see Table 3.2) |
3.3.5
Odour patrol should be carried out along the boundary
of the Project Site. The actual patrol
routing should be proposed by the ET Leader with reference to the construction
works locations and programme, and agreement should
be obtained from the ER, the IEC and EPD.
The odour patrol schedule should be submitted
to ER, the IEC and EPD at least 1 week before the first day of the monitoring
month. The ER, IEC and EPD should be notified immediately
of any changes in schedule.
3.3.6
The odour intensities
detected should be categorised as in Table 3.2.
Table 3.2 Odour Intensity Level
|
Class |
Odour
Intensity |
Description
|
|
0 |
Not Detected |
No odour perceived or an odour so weak
that it cannot be easily characterised or described. |
|
1 |
Slight |
Identified odour, slight |
|
2 |
Moderate |
Identified odour, moderate |
|
3 |
Strong |
Identified odour, strong |
|
4 |
Extreme |
Severe odour |
3.4.1
Prior to the commencement of construction, a
baseline odour patrol should be undertaken in the
same manner as the odour patrol during the
construction phase, except that the odour patrol
should be undertaken weekly for one month before commencement of construction of
the Project. The objective of the
baseline odour patrol is to provide baseline data for
determining any odour impacts during the construction
phase of the Project.
3.5.1
When a complaint is received regarding odour nuisance, a complaint log should be triggered within
24 hours and kept with the Contractor.
The form should include but not be limited to the following:
·
Date and time of the complaint;
·
Name and contact information of the complainant;
·
Location of where the odour
nuisance occurred;
·
Characteristics of the odour;
·
Odour strength;
·
Meteorological conditions including temperature,
wind speed, wind direction relative humidity at the time of the complaint; and
·
Construction activities carried out at the Project
Site at the time the nuisance occurred.
3.5.2
The outcome of the investigation and the action
taken will be documented on the complaint log.
A formal response to each complaint received will be prepared by the
Contractor(s) within five working days and submitted to DSD, in order to notify
the concerned person(s) that action(s) has been taken.
3.5.3
Enquires which trigger this process will be reported
in the monthly EM&A Reports which will include results of inspections
undertaken by the Contractor(s), and details of the measures taken, and additional
monitoring results (if deemed necessary).
It should be noted that the receipt of complaint or enquiry will not be, in itself, a sufficient reason to introduce additional
mitigation measures.
3.6.1
Table
3.3
shows the Action and Limit Levels to be used.
When the Action and Limit Levels are triggered, investigation should be
carried out to identify the cause of exceedance and actions in accordance with
the EAP (see Table 3.4) should be taken.
Table 3.3 Action and Limit Levels for Odour
|
|
Action
Level |
Limit
Level |
|
Perceived odour intensity and odour
complaints |
· Odour
intensity ≥ baseline odour intensity recorded on 1 patrol; or · One
documented complaint received |
·
Odour intensity ≥
baseline odour intensity recorded on 2 consecutive patrols (a) |
|
Note: (a)
The exceedances of the
odour intensity do not need to be recorded at the same location. |
||
·
Inform the IEC, EPD, Contractor, ER and DSD of the
exceedance and any known circumstances associated with the exceedance within 24
hours;
·
Investigate the cause of exceedance; and
·
Implement the EAP as shown in see Table 3.4.
Table 3-4 Event / Action Plan for Odour Monitoring during Construction
Phase of the Project
|
Event |
Action |
|||
|
ET |
IEC |
ER |
Contractor |
|
|
Exceedance of Action Level |
·
Identify source/ reason
of exceedance or complaint ·
Prepare the odour
complaint form or the Notification of Exceedance within 24 hours ·
Inform DSD, EPD, IEC,
ER and Contractor whether the cause of exceedance is due to the Project ·
Discuss remedial actions with the IEC and the Contractor ·
Assess
effectiveness of Contractor's remedial actions and keep the IEC and
Contractor informed of the results |
·
Review the analysed results submitted by the ET ·
Review the
proposed remedial measures by the Contractor and advise the ER accordingly ·
Supervise the
implementation of remedial measures |
·
Discuss
with DSD, IEC, ET and Contractor on the proposed mitigation measures; ·
Make
agreement on the mitigation measures to be implemented. |
·
Rectify any
unacceptable practice ·
Amend
working methods as required ·
Implement
amended working methods, if necessary |
|
Exceedance of Limit Level |
·
Identify source(s)/
reason of exceedance or complaint ·
Prepare the odour
complaint form or the Notification of Exceedance within 24 hours ·
Inform DSD, EPD, IEC,
ER and Contractor whether the cause of exceedance is due to the Project ·
Assess
effectiveness of Contractor's remedial actions and keep the IEC and
Contractor informed of the results |
·
Review the analysed results submitted by the ET ·
Review the
proposed remedial measures by the Contractor and advise the ER accordingly ·
Supervise
the implementation of remedial measures |
·
Discuss
with DSD, 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; ·
Assess the
effectiveness of the implemented mitigation measures. |
·
Rectify any
unacceptable practice ·
Submit
proposals for remedial actions to IEC within 3 working days of notification ·
Implement
the agreed proposal or amend working methods as required ·
Re-submit
proposals if problem still not under control |
Construction
Phase
3.8.1
Relevant dust control measures stipulated in the Air Pollution Control (Construction Dust)
Regulation, and good site practices will be incorporated as the Contract
Specifications for implementation throughout the construction period. These
include:
·
The works area for site clearance and excavation
should be sprayed with water before, during and after the operation so as to maintain the entire surface wet.
·
Where a vehicle leaving a construction site is carrying a load of dusty materials,
the load should be covered entirely by clean impervious sheeting to ensure that
the dusty materials will not leak from the vehicle.
·
Erection of hoarding along the site boundary, where
appropriate.
·
All dusty materials should be sprayed with water
immediately prior to any loading, unloading or transfer operation so as to maintain the dusty materials wet.
·
Reduce the traffic induced dust dispersion and
re-suspension, the travelling speed of vehicles within the site should be
controlled.
·
Regular maintenance of construction equipment deployed
on-site should be conducted to prevent black smoke emission.
3.8.2
Excavated nullah bed
materials that are placed on trucks for disposal should be properly covered
with tarpaulin sheets during transportation to minimise the release of any
potential odour. The odorous excavated
material should be placed as far away from the sensitive receivers as
possible. Odorous river bed material excavated
during construction phase should be removed off-site as soon as practicable
within 24 hours to avoid any odour nuisance.
Operation
Phase
3.8.3
During operation phase, mitigation measures are
considered necessary when materials generated from the maintenance works are found
to be odorous, and the following measures should be implemented by the
Contractor.
·
Temporarily stockpile odorous material as far away
from ASRs as possible; and
·
Temporary stockpiles of odorous material will be
properly covered with tarpaulin and should be removed off-site as soon as
practically possible within 24 hours to avoid any odour nuisance arising
3.8.4
To reduce odour
impacts from the DWF pumping station, the following measures should be
implemented.
·
The DWF pumping station should be enclosed inside
building structure and maintained with negative pressure;
·
The DWF pumping station should be equipped with deodourization unit using activated carbon or other equivalent
odour removal techniques with odour removal efficiency of 99.5%;
·
The exhaust outlet of the deodourization
unit should be located in a direction away from the
nearby ASRs, with a view to maximizing the separation distance between the
exhaust outlet and the nearest ASR; and
·
Regular maintenance of the deodourization
unit should be conducted to ensure its effectiveness.
4.1.1
In accordance with the
recommendations of the EIA, mitigation measures to control impacts from noise
generating works have been the proposed for the construction phase of the
Project. Proposed mitigation measures
for noise reduction and control are provided in Annex
A.
4.2.1
Noise level monitoring is recommended to ensure
compliance with the noise criterion at the Noise Sensitive Receivers (NSRs). Monitoring requirements are detailed below:
Construction Noise Parameters
4.2.2
Due to the utilization of Powered Mechanical
Equipment (PME) during the construction phase of the Project, potential noise
impact to the NSRs in the vicinity of the Project Site is expected.
4.2.3
Noise measurements should be carried out in
accordance with the guidelines given in Annex – General Calibration and
Measurement Procedures of Technical Memorandum on Noise from Construction Work
other than Percussive Piling (GW-TM).
4.2.4
Construction noise level should be measured in terms
of a weighted equivalent continuous sound pressure level (Leq)
during the construction phase to check for compliance against limits. Leq (30min) should
be used as the monitoring parameter for the construction period between 0700 –
1900 hours on normal working days. For
all other time periods, Leq (5min) should be measured
for comparison with the Noise Control Ordinance (NCO) criteria. Supplementary
information for data auditing (statistical results such as L10 and L90) should
also be obtained for reference.
Monitoring
Equipment
4.2.5
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 should be used for carrying
out the noise monitoring. Immediately
prior to, and following, each noise measurement the accuracy of the sound level
meter should 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 1.0 dB. Noise measurements should generally not be
made in the presence of fog, rain, wind with a steady speed exceeding 5m s-1
or wind with gusts exceeding 10m s-1. The wind speed should be checked with a
portable wind speed meter capable of measuring the wind speed in m s-1.
Monitoring
Locations
4.2.6
The noise monitoring locations have been shown in Figure 4.1 and Table 4.1. The status and location of noise sensitive
receiver (NSR) may change before commencement of construction. If such cases exist, the ET Leader should
propose updated noise level monitoring locations and seek approval from the ER
and the updated locations must be agreed by the IEC and the EPD.
Table 4.1 Representative Noise Sensitive Receivers (NSRs)
|
Noise
Monitoring Station |
NSR
ID in EIA |
Description |
Type
of Usage |
|
CM1 |
NSR01 |
Tung Tau Wai San Tsuen |
Residential |
|
CM2 |
NSR03 |
Twin Regency |
Residential |
|
CM3 |
NSR09 |
Tai Kiu
Tsuen |
Residential |
|
CM4 |
NSR14 |
CCC Chun Kwong
Primary School |
School |
|
CM5 |
NSR20 |
Ma Tin Tsuen - Kung Um Road |
Residential |
4.2.7
When proposing alternative monitoring location, it
should be chosen based on the following criteria:
· Locations that are close to the major site activities which are likely to be affected by elevated noise levels;
· close to the noise sensitive receivers; and
· for monitoring locations located in the vicinity of the sensitive receivers, care should be taken to cause minimal disturbance to the occupants during monitoring.
4.2.8
The monitoring station(s) should normally be at a
point 1 m from the exterior of the sensitive receiver building facade and be at
a position 1.2 m above the ground. If
there is a problem with access to the normal monitoring position, an
alternative position may be chosen, and a correction to the measurements should
be made. For reference, a correction of
+3 dB(A) should be made to the free field measurements. The ET Leader should agree with the IEC on
the monitoring position and the corrections adopted. Once the positions for the monitoring
stations are chosen, the baseline monitoring and the impact monitoring should
be carried out at the same position.
4.3.1
The ET should carry out baseline noise monitoring
prior to the commencement of any construction works. The baseline monitoring should be measured
for a continuous period of at least 14 consecutive days at a minimum logging
interval of 30 minutes for day-time and 15 minutes (as three consecutive Leq(5min) readings) for
4.3.2
During the baseline monitoring, there should not be
any construction activities in the vicinity of the monitoring stations. Any non-Project related construction activities
in the vicinity of the stations during the baseline monitoring should be noted
and the source(s) and location(s) be recorded.
4.3.3
In exceptional cases, when insufficient baseline
monitoring data or questionable results are obtained, the ET shall liaise with
the Engineer’s Representative (ER), IEC and EPD to agree on an appropriate set
of data to be used as a baseline reference.
4.4.1
Weekly noise monitoring should be carried out at all
the designated monitoring stations to obtain one set of 30-minute measurements
between 0700-1900 hours during working days.
General construction work carrying out during restricted hours is
controlled by CNP system under the NCO. The proposed monitoring schedule should
be submitted to ER, the IEC and EPD at least 1 week before the first day of the
monitoring month. The ER, IEC and EPD should be notified immediately of any changes in
schedule.
4.4.2
In case of non-compliance with the construction
noise criteria, more frequent monitoring as specified in the Action Plan in Table
4.2 shall be carried out. This
additional monitoring should be continued until the recorded noise levels are
rectified or proved to be irrelevant to the construction activities.
4.5.1
The Action and Limit levels for construction noise
are defined in Table 4.2. Should non-compliance of the noise quality
criteria occur, actions in accordance with the Action Plan in Table 4.3 should be carried out.
Table
4.2 Action and Limit Levels for
Construction Noise Monitoring
|
Time
Period |
Action
Level |
Limit
Level |
|
0700 – 1900 Hrs on normal weekdays |
When one documented compliant is
received |
§ 75
dB(A) for residential § 70
dB(A) for schools and 65dB(A) during school examination periods |
Table
4.3 Event and Actions for
Construction Noise Monitoring
|
Events |
Action |
|||
|
ET |
IEC |
ER |
Contractor |
|
|
When Action Level is reached/exceeded |
1.
Notify IEC, DSD, EPD, ER and Contractor; 2.
Carry out investigation; 3.
Report the results of investigation to the IEC, DSD, EPD, ER and Contractor; 4.
Discuss with the Contractor and formulate remedial measures; 5.
Increase monitoring frequency to check mitigation effectiveness |
1.
Review the analysed results submitted by the ET; 2.
Review the proposed remedial measures by the Contractor and advise the ER
accordingly; 3.
Supervise the implementation of remedial measures |
1.
Discuss with DSD, IEC, ET and Contractor on the proposed mitigation measures; 2.
Make agreement on the mitigation measures to be implemented. |
1.
Submit noise mitigation proposals to IEC; 2.
Implement noise mitigation proposals |
|
When Limit Level is reached/exceeded |
1.
Notify IEC, DSD, EPD, ER and Contractor; 2.
Identify source; 3.
Carry out investigation; 4.
Report the results of investigation to the IEC, DSD, EPD, ER and Contractor; 5.
Discuss with the Contractor and formulate remedial measures; 6.
Increase monitoring frequency to check mitigation effectiveness |
1.
Review the analysed results submitted by the ET; 2.
Review the proposed remedial measures by the Contractor and advise the ER
accordingly; 3.
Supervise the implementation of remedial measures |
1.
Discuss with DSD, IEC, ET and Contractor on the proposed mitigation measures; 2.
Request Contractor to critically review the working methods; 3.
Make agreement on the mitigation measures to be implemented; 4.
Assess the effectiveness of the implemented mitigation measures. |
1.
Submit noise mitigation proposals to IEC; 2.
Implement noise mitigation proposals |
4.5.2
In addition, regular environmental site audit is
required to ensure the implementation of practical noise control measures,
including good site practice, use of quiet PMEs and adoption of mobile noise
barriers. Detailed site audit
specifications are included in Section 8
of this EM&A Manual.
4.6.1
Unacceptable
noise impact is not expected during operation of the Project. Therefore, operational noise monitoring is
not considered necessary.
5.1.1. In accordance with
the recommendations of the EIA, mitigation measures have been proposed during
the construction phase of the Project to ensure that unacceptable water quality
impacts do not occur at the downstream Water Sensitive Receivers (WSRs) as a
result of the construction works.
Details of the mitigation measures are presented in Section 6 of the EIA
Report. Relevant mitigation measures are
presented in Annex
A.
5.1.2. In addition to the
recommended mitigation measures, water quality monitoring should be undertaken
during the construction phase of the Project to determine the environmental
performance of the Project in terms of its water quality impacts. Appropriate remedial actions should be taken
in case the environmental performance criteria are exceeded. Detailed monitoring requirements are
presented in the following sections.
Water
Quality Monitoring Parameters
5.2.1
Water quality parameters are chosen for monitoring
with consideration of the potential water quality impacts from the construction
of the Project (i.e. release of polluted water with high suspended sediment
(SS) load from the construction works).
This would ensure that potential impacts from construction activities of
the Project can be readily detected and timely action could be undertaken to
rectify the situation. Water quality
parameters to be measured are shown in Table
5.1.
Table
5.1 Water Quality Monitoring
Parameters and Frequency during the Construction Phase
|
Parameters |
Unit |
Monitoring Frequency |
||
|
Baseline
monitoring |
Impact
monitoring |
Post
Project monitoring |
||
|
In
– situ Measurement |
|
|
|
|
|
pH |
- |
3 days per week for 4 weeks prior to the
commencement of construction works |
3 days per week throughout the
construction period |
3 days per week for 4 weeks
after the completion of construction works |
|
Water temperature |
ºC |
|||
|
Turbidity |
NTU |
|||
|
Dissolved Oxygen (DO) |
mg/L |
|||
|
Dissolved Oxygen (DO) |
% saturation |
|||
|
Salinity |
0/00 |
|||
|
Laboratory Analysis |
||||
|
Suspended
Solids (SS) |
mg/L |
|||
Notes:
For monitoring stations affected by tidal condition, monitoring should be
carried out at mid-flood and mid-ebb.
5.2.2
In addition to the water quality parameters, other
relevant data should also be measured and recorded in field logs, including the
coordinates of the sampling stations and the location of construction works at
the time of sampling, tidal stages, water depth, sampling depth, weather
conditions, flowrate (m3/day), special phenomena (provide
photographs if appropriate) and work activities undertaken around the
monitoring and works area that may influence the monitoring results.
Water
Quality Monitoring Equipment
5.2.3
For water quality monitoring, the following
equipment should be supplied and used by the environmental contractor.
5.2.4
Dissolved Oxygen, Temperature and Salinity
Measuring Equipment - The
instrument should be a portable, weatherproof measuring instrument complete
with cable, sensor, comprehensive operation manuals, and should be operable
from a DC power source. It should be
capable of measuring: dissolved oxygen levels in the range of 0–20 mg L-1
and 0-200% saturation; a temperature of 0-45 °C; and a salinity of 0-35 ppt.
5.2.5
It
should have a membrane electrode with automatic temperature compensation
complete with a cable of not less than 35 m in length. Sufficient stocks of
spare electrodes and cable should be available for replacement where necessary
(for example, YSI model 59 meter, YSI 5739 probe, YSI 5795A submersible stirrer
with reel and cable or an approved similar instrument).
5.2.6
Turbidity Measurement
Instrument - Turbidity
should be measured in situ by the nephelometric method using an
instrument that is portable and weatherproof using a DC power source with
cable, sensor, and comprehensive operation manuals. This instrument should have a photometric
sensor capable of measuring turbidity between 0 - 1000 NTU (e.g. Hach model
2100P or other approved instrument of similar type). The meter should be calibrated in order to establish
the relationship between NTU units and the levels of SS. The turbidity measurement should be carried
out on a split water sample from the same water sample collected for suspended
solids analysis.
5.2.7
pH
Measuring Equipment - A portable pH meter capable of measuring a range between 0.0 and 14.0
should be provided to measure pH under the specified conditions (e.g. Orion
Model 250A or an approved similar instrument).
5.2.8
Electromagnetic
Flow Meter - A hand-held digital electromagnetic flow meter
(e.g. model Flo-mate 2000 or other approved similar instrument) should be
provided and used to measure water flow rate during water quality
monitoring. The measurement should be
conducted at fixed sampling points and water depth throughout the monitoring programme.
5.2.9
Positioning
Device - A hand-held Global
Positioning System (GPS) with way point bearing indication or other equivalent
instrument of similar accuracy will be provided and used during monitoring to
ensure the monitoring team is at the correct location before taking
measurements.
5.2.10
Water
Depth Gauge - A
portable, battery-operated echo sounder will be used for the determination of
water depth at each designated monitoring station.
5.2.11
Water Sampling Equipment - A water sampler,
consisting of a transparent PVC or glass cylinder of at least 500ml, which can
be effectively sealed at both ends, should be used (Kahlsico
Water Sampler 13SWB203 or an approved similar instrument). Water samples for SS, BOD5
measurements should be contained in high density polyethene bottles.
5.2.12
Back-up Equipment - Sufficient stocks of spare parts
should be maintained for replacements when necessary. Back-up monitoring equipment should also be
available so that monitoring can proceed uninterrupted even when some equipment
is under maintenance, calibration, etc.
Sampling
/ Testing Protocols
5.2.13
All in situ monitoring instruments should be
checked, calibrated and certified by a laboratory accredited under HOKLAS or
any other international accreditation scheme before use, and subsequently
re-calibrated at-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.
5.2.14
For the
on-site calibration of field equipment, the BS 1427: 1993, Guide to Field and
On-Site Test Methods for the Analysis of Waters should be observed. 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 equipment
is under maintenance, calibration etc.
5.2.15
Water
samples for SS measurements should be collected in high density polythene
bottles, packed in ice (cooled to 4°
C without being
frozen), and delivered to a HOKLAS laboratory as soon as possible after
collection.
5.2.16
Three replicate samples should be collected from each of the monitoring
events for in situ measurement and
lab analysis. It is recommended to take
three replicates at each sampling station from each independent sampling event
for all parameters in order to ensure a robust statistically interpretable data
set.
Laboratory Analysis
5.2.17
All
laboratory work should be carried out in a HOKLAS accredited laboratory. Water samples of about 1,000ml should be
collected at the monitoring and control stations for carrying out the
laboratory determinations. The
determination work should start within the next working day after collection of
the water samples. The SS laboratory
measurements should be provided within 2 days of the sampling event (48
hours). The analyses should follow the
standard methods as described in APHA Standard Methods for the Examination of
Water and Wastewater, 21st Edition, unless otherwise specified (APHA
2540D for SS).
5.2.18
The
submitted information should include pre-treatment procedures, instrument use,
Quality Assurance/Quality Control (QA/QC) details (such as blank, spike
recovery, number of duplicate samples per-batch etc),
detection limits and accuracy. The QA/QC
details should be in accordance with requirements of HOKLAS or another
internationally accredited scheme.
Monitoring
Locations
5.2.19
The monitoring stations have been established to identify
potential water quality impacts to WSRs.
Locations of the monitoring stations are shown in Figure 5.1 with the co-ordinates
presented on Table 5.2. These monitoring stations are confirmed to be
accessible by land. Descriptions of the
monitoring stations are as follows:
·
W1 is Impact Station while W2 is Impact Station or
Control Station depending on tidal condition. These stations are downstream of
the boundary of the Project Site at which construction activities of the nullah
bed end. W1 is located at the Shan Pui River and is approximately 250 m from the boundary of
works, while W2 is located near the Mai Po Inner Deep Bay Ramsar Site and is
approximately 2 km from the boundary. Water
quality monitoring at these two Stations will help to determine any adverse
water quality impacts to the nearest Water Sensitive Receivers which may be
caused by the Project’s construction activities.
·
C1 and C2 are Control Stations which are approximately
500m upstream of the Project Site and not supposed to be influenced by the
construction works. These stations are
not affected by tidal condition of Shan Pui River. Water
quality monitoring data collected at C1 and C2 will be used to compare with the
Impact Stations’ data to determine any adverse water quality impacts as a
result of the construction works of the Project.
·
Mobile Stations should also be monitored for which the
location will be determined in accordance with the boundary and number of the
active works area during the time of impact monitoring. The Upstream Mobile Station should be located
about 50 m upstream of the active works area while the Downstream Mobile Station
should be located about 50 m downstream of the active works area.
Table 5.2 Locations of Water Quality Monitoring Stations for the
Construction Phase Monitoring
|
Station |
Description |
Station
Nature |
Easting |
Northing |
|
|
Mid-ebb |
Mid-flood |
|
|
||
|
W1 |
Shan Pui
River |
Impact Station |
821322 |
835217 |
|
|
W2 |
Shan Pui
River near Mai Po Inner Deep Bay Ramsar Site |
Impact Station |
Control Station |
820935 |
837158 |
|
C1 |
Kung Um Road Nullah |
Control Station* |
820694 |
833151 |
|
|
C2 |
San Hui Nullah |
Control Station* |
820876 |
833173 |
|
|
UM |
Yuen Long Town Nullah |
Upstream Mobile Station (Control)* |
Located 50 m upstream of the
active works area. Location to be
determined on-site. |
||
|
DM |
Yuen Long Town Nullah |
Downstream Mobile Station* (Impact) |
Located 50 m downstream of
the active works area. Location to be
determined on-site. |
||
* Not affected by tidal
condition
5.2.20
The locations and suitability of the proposed monitoring
stations above are for reference only and shall be reviewed and proposed by the
ET and confirmed with the IEC and the EPD before commencement of Baseline
Monitoring. The water depth in the Yuen
Long Town Nullah and Shan Pui River may not be sufficient to take samples at different depths, especially
during dry season or due to tidal action.
Therefore, water samples should only be taken at mid-depth. Water
sampling works should be conducted with caution to avoid disturbing the bottom
sediment.
Monitoring
Frequency
5.2.21
As
specified in Table 5.1, the detailed monitoring frequency requirements
are listed below.
Baseline
Monitoring
5.2.22
Baseline
monitoring should be undertaken three times per week for four weeks at the
designated stations except the Mobile Stations prior to the commencement of the
construction works. For monitoring
stations affected by tidal condition, monitoring should be carried out at mid-flood
and mid-ebb. The interval between two consecutive sets of monitoring should not
be less than 36 hours. Baseline
monitoring schedule prepared by the ET should be submitted to the ER, the IEC
and EPD one week prior to the commencement of baseline monitoring.
Impact Monitoring
5.2.23
Impact
monitoring should be undertaken three times per week during
the course of construction works.
For monitoring stations affected by tidal condition, monitoring should
be carried out at mid-flood and mid-ebb. The interval between two consecutive
sets of monitoring should not be less than 36 hours except when there are
exceedances of Action and/or Limit Level, in which case monitoring frequency
should be increased. The proposed water
quality monitoring schedule prepared by the ET should be submitted to the ER,
the IEC and EPD at least one week before the first day of the monitoring
month. The ER, the IEC and EPD should be
notified immediately of any changes in schedule.
Post Project
Monitoring
5.2.24
Post
Project Monitoring will comprise sampling on three days a week for four weeks
after completion of the construction works.
The monitoring requirements will be the same as the Baseline Monitoring
stated in Section 5.2.22 above. The
salinity monitoring results shall be compared
with the typical salinity range of 0.2 – 29.5 psu in
Deep Bay specified in the EIA Report or updated baseline data obtained. Post Project monitoring schedule prepared by
the ET should be submitted to the ER, the IEC and EPD one week prior to the
commencement of Post Project monitoring.
Event
and Action Plan
5.2.25 Water quality monitoring results will be evaluated against Action and Limit Levels shown in Table 5.3.
Table 5.3 Action and Limit Level for Water Quality Monitoring during
the Construction Phase of the Project (based on the result of the Baseline
Report)
|
Parameter |
Action Level |
Limit Level |
|
|
SS in mg/L (1) |
95%-ile of baseline data, or 20% exceedance of value at
any impact station compared with corresponding data from control station on
the same day |
99%-ile of baseline data, or 30% exceedance of value at
any impact station compared with corresponding data from control station on
the same day |
|
|
DO in mgL-1 (2) |
5%-ile of baseline data |
4 mg/L or 1%-ile of baseline data |
|
|
Turbidity in NTU (1) |
95%-ile of baseline data, or 20% exceedance of value at any impact station
compared with corresponding data from control station on the same day |
99%-ile of baseline data, or 30% exceedance of value at any impact station
compared with corresponding data from control station on the same day |
|
|
Notes: (1)
For SS and
turbidity, non-compliance of the water quality limits occurs when monitoring
result is higher than the limits. (2)
For DO,
non-compliance of the water quality limits occurs when the monitoring result
is lower than the limits. |
|||
5.2.26
Should
the monitoring results of the water quality parameters at any designated
monitoring stations indicate that the water quality criteria are exceeded, the
actions in accordance with the Event and Action Plan in Table 5.4 should be
carried out.
5.2.27
In
addition to monitoring, regular environmental site audit is required to ensure
the proper implementation of good site practices, construction runoff pollution
prevention measures, drainage and sewage control measures.
Table
5.4 Event and Action Plan for Water
Quality Monitoring during the Construction Phase of the Project
|
Event |
ET
Leader |
IEC |
ER |
Contractor |
|
Action level being exceeded |
·
Repeat measurement to
confirm findings; ·
Identify source(s) of
impact; ·
Inform DSD, IEC,
Contractor, ER and EPD; ·
Check monitoring data,
all plant, equipment and Contractor's working methods; ·
Discuss mitigation
measures with DSD, IEC , ER and Contractor; ·
Repeat measurement on
next day of exceedance. |
·
Discuss with DSD, 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 DSD, IEC,
ET and Contractor on the proposed mitigation measures; ·
Make agreement on the mitigation
measures to be implemented. |
·
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; ·
Implement the agreed
mitigation measures. |
|
Limit level being exceeded |
·
Repeat measurement to
confirm findings; ·
Identify source(s) of
impact; ·
Inform DSD, IEC,
Contractor, ER and EPD; ·
Check monitoring data,
all plant, equipment and Contractor's working methods; ·
Discuss mitigation
measures with DSD, IEC, ER and Contractor; ·
Ensure mitigation
measures are implemented; ·
Increase the monitoring
frequency to daily until no exceedance of Limit level. |
·
Discuss with DSD, 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 DSD, 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; ·
Assess the
effectiveness of the implemented mitigation 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 3 working days; ·
Implement the agreed
mitigation measures. |
6.1.1. Construction and
demolition (C&D)
materials will inevitably be produced during the construction phase of the
Project. Waste generated during
construction works includes construction and demolition materials, chemical
waste, general refuse and floating refuse.
Waste types, quantities and timing have been estimated and mitigation
measures have been proposed in terms of avoidance-minimisation-reuse-recycling-disposal
hierarchy.
6.1.2. Potential for reuse
of inert C&D material (public fill) from the Project will be rigorously
explored during the detailed design stage in an effort to
minimise off-site disposal. Provided
that there is strict control of C&D materials generated from construction
works and that all arising materials are stored, handled, transported and
disposed of in accordance with the recommended mitigation measures, potential
impact is not expected.
6.1.3. The recommended waste
management measures shall be enforced by incorporating them into an Environmental
Management Plan (EMP) to be prepared by the Contractor. Environmental audit would be necessary to ensure
the implementation of proper waste management practices during construction.
6.1.4. Auditing should be
carried out periodically to determine if waste is being managed in accordance
with the relevant environmental legislation and standards (e.g. Waste Disposal
Ordinance) and the EMP. The audits
should examine all aspects of waste management including waste generation,
storage, recycling, treatment, transportation, and disposal. The general site inspections including waste
management issues will be undertaken weekly by ET to check all construction
activities for compliance with all appropriate environmental protection and
pollution control measures, including those set up in the EMP. Meanwhile, waste management audit should also
be carried out on monthly basis by the IEC.
6.1.5. Unacceptable impacts
related to waste management are not expected during operation of the
Project. As such, environmental
monitoring is not considered necessary during operation of the Project.
7.1.1.
The EIA
study has recommended to undertake an EM&A programme
for the landscape and visual aspects during the design, construction and
operation phases of the Project. The
design, implementation and maintenance of landscape mitigation measures is a
key aspect of the Project and should be checked to ensure that they are fully realised and that potential conflicts between the proposed
landscape measures and any other Project works and operational requirements are
resolved at the earliest possible date and without compromise
to the intention of the mitigation measures.
In addition, implementation of the mitigation measures recommended in the
EIA will be monitored through the site audit programme.
Construction Phase
7.2.1
The
following mitigation measures should be implemented during the construction
phase of the Project.
|
ID |
Mitigation Measures |
Funding
Agency |
Implementation
Agency |
|
CM1 |
Good
site practice Construction
site should be kept clean and tidy and construction material should be stored
in order. Canvas sheets should be used
to cover the exposed earth. Unused construction and demolition (C&D)
debris should be removed as soon as the reinstatement works are completed. |
DSD |
DSD / Contractor |
|
CM2 |
Erection
of decorative screen hoarding Each
site should be provided with decorative screen hoarding compatible with
surrounding setting. |
DSD |
DSD / Contractor |
|
CM3 |
Tree preservation The existing
trees shall be preserved as far as possible. The retained existing trees on
site shall be protected carefully during construction. The requirement
specified in “Guidelines on Tree Preservation during Development” issued by
Development Bureau shall be followed. Tree preservation should include protection
measures for existing trees and greenery. |
DSD |
DSD / Contractor |
|
CM4 |
Tree transplanting / compensatory tree
planting According to
the latest design, all trees will be preserved and
no tree felling is expected. In case of trees unavoidably affected by the
Project during construction, tree transplanting shall be conducted as far as
possible. Any unavoidable tree felling shall be mitigated by compensatory
tree planting. |
DSD |
DSD / Contractor |
Operation Phase
7.2.2
The
following mitigation measures should be implemented during the operation phase
of the Project:
|
ID |
Mitigation Measures |
Funding
Agency |
Implementation
Agency |
Maintenance/ Management
Agency |
|
OM1 |
A minimum
lighting will be maintained at night time as general lighting provision for
security reason. |
DSD |
DSD
/ Contractor |
DSD |
|
OM2 |
Green roof
and shrub planting will be provided for the DWF pumping station. The roof
structure will be planted with trees and groundcovers to reduce glaring
effect and give a green appearance of the roof structure. Shrub planting is
proposed to be planted within the site boundary to further enhance the
development with lush greenery. |
DSD |
DSD
/ Contractor |
DSD |
|
OM3 |
Vertical
greening will be provided on the external walls without the coverage of
architectural elements. |
DSD |
DSD
/ Contractor |
DSD |
|
OM4 |
The proposed
architectural design of the DWF pumping station will utilize the surrounding
landscape to blend the buildings with the surrounding environment. The
building will maintain a low profile to reduce the visual impact. |
DSD |
DSD
/ Contractor |
DSD |
7.3.1
A
photographic record of the Project Site at the time of the Contractor’s
possession should be prepared by the Contractor and approved by the ER. The approved photographic record should be
submitted to the Project Proponent, ET, IEC and EPD for record.
7.4.1
A
specialist Landscape Sub-Contractor should be employed by the Contractor for
the implementation of landscape construction works and subsequent maintenance
operations during the 12-month establishment period.
7.4.2
All
measures undertaken by both the Contractor and the specialist Landscape
Sub-Contractor during the construction phase and first year of the operational
phase should be audited by a Registered Landscape Architect, as a member of the
ET, on a regular basis to ensure compliance with the intended aims of the
measures. Site inspections should be
undertaken at least once every two weeks throughout the construction period and
once every two months during the operational phase. The broad scope of the audit is detailed
below but should also be undertaken with reference to the more specific
checklist provided in Table 7.1. Operational phase auditing will be restricted
to the 12 months of the establishment works of the landscaping proposals and
thus only the items below concerning this period are relevant to the
operational phase.
·
The extent of the agreed works areas
should be regularly checked during the construction phase. Any trespass by the Contractor outside the
limit of the works, including any damage to existing trees should be noted;
·
All existing trees and vegetation within
the study area which are not directly affected by the works are retained and
protected;
·
The methods of protecting existing
vegetation proposed by the Contractor are acceptable and enforced;
·
Preparation, lifting transport and
re-planting operations for any transplanted trees are conducted in accordance
with the approved methodology;
·
The planting of new trees, shrubs,
groundcover, climbers, ferns, grasses and other plans, together with the
replanting of any transplanted trees are carried out properly and within the
right season; and
·
All necessary horticultural operations and
replacement planting are undertaken throughout the Establishment Period to ensure
the healthy establishment and growth of both transplanted trees and all newly
established plants.
Table
7.1 Construction/Post-Construction
Phase Audit Checklist
|
Area of Works |
Items to be Monitored |
|
Advance planting |
Monitoring of implementation and maintenance
of planting, and against possible incursion, physical damage, fire,
pollution, surface erosion, etc. |
|
Protection of all trees to be retained |
Identification and demarcation of trees
/ vegetation to be retained, erection of physical protection (e.g. fencing),
monitoring against possible incursion, physical damage, fire, pollution,
surface erosion, etc. |
|
Clearance of existing vegetation |
Identification and demarcation of trees
/ vegetation to be cleared, checking of extent of works to minimise damage, monitoring of adjacent areas against
possible incursion, physical damage, fire, pollution, surface erosion, etc. |
|
Transplanting of trees |
Identification and demarcation of trees
/ vegetation to be transplanted, monitoring of extent of pruning / lifting works
to minimise damage, timing of operations,
implementation of all stages of preparatory and translocation works, and
maintenance of transplanted vegetation, etc. |
|
Plant supply |
Monitoring of operations relating to the
supply of specialist plant material (including the collecting, germination
and growth of plants from seed) to ensure that plants will be available in
time to be used within the construction works. |
|
Soiling, planting, etc. |
Monitoring of implementation and
maintenance of soiling and planting works and against possible incursion,
physical damage, fire, pollution, surface erosion, etc. |
|
Decorative treatment of site hoarding |
Implementation and maintenance of
mitigation measures, to ensure compliance with agreed designs. |
|
Architectural design and treatment
including visually recessive designs, materials, textures and colours. |
Implementation and maintenance of
mitigation measures, to ensure compliance with agreed designs. |
|
Establishment Works |
Monitoring of implementation of
maintenance operations during Establishment Period |
7.4.3
In the
event of non-conformity the responsibilities of the
relevant parties are detailed in the Event /Action plan provided on Table 7.2.
Table 7.2 Event / Action Plan
|
Action
Level |
ET
Leader
|
IEC |
ER |
Contractor |
|
Non-conformity
Identified |
1. Inform
Contractor, IEC and ER 2. Discuss
remedial measures with IEC, ER and Contractor 3. Monitor
remedial measures until rectification has been completed |
1. Check the
Contractor's working method 2. Discuss with ETL and Contractor on
possible remedial measures 3. Advise ER
on effectiveness of proposed remedial measures. 4. Check
implementation of remedial measures. |
1. Ensure
remedial measures are properly implemented |
1. Amend
working methods 2. Propose
remedial measures 3. Rectify
non-conformity and undertake any necessary remedial measures. |
8.1.1
Site
inspection should be undertaken regularly in order to inspect the construction
activities and ensure that appropriate environmental protection and pollution
control mitigation measures are properly implemented.
8.1.2
The
ET Leader should be responsible for formulating the environmental site
inspection, deficiency and action reporting system, and for carrying out the
site inspection works. The ET Leader
should submit a proposal on the site inspection, deficiency and action reporting
procedures to the Contractor for agreement and to the IEC and ER for approval.
8.1.3
Regular
site inspections should be carried out at once per week. The areas of inspection should not be limited
to the environmental situation, pollution control and mitigation measures
within the site. It should also review
the environmental situation outside the works area which is likely to be
affected, directly or indirectly, by the construction activities of the
Project. The ET Leader should make reference to the following information in conducting
the inspection:
a)
Recommendations in the EIA study on environmental protection
and pollution control mitigation measures;
b)
On-going result of the EM&A programme;
c)
Works progress and programme;
d)
Individual works methodology proposals (which should include
proposal on associated pollution control measures);
e)
The contract specifications on environmental protection;
f)
Relevant environmental protection and pollution control laws;
and
g)
Previous site inspection results.
8.1.4
The
Contractor should update the ET Leader with all relevant information of the
construction contract for the ET Leader to carry out the site inspections. The inspection results and its associated
recommendations on improvements to the environmental protection and pollution
control works should be submitted to the ER, Contractor and IEC within 24
hours, for reference and for taking immediate action. The Contractor should follow the procedures
and time-frame as stipulated in the environmental site inspection, deficiency
and action reporting system formulated by the ET Leader to report on any
remedial measures subsequent to the site inspections.
8.1.5
The
ET 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 Action Plan for environmental monitoring and audit.
8.2.1
In order
to ensure that all construction site works are in compliance
with the environmental requirements, all the works method statements
submitted by the Contractor to the ER for approval should be sent to the ET
Leader for vetting.
8.2.2
The ET
Leader should also review the progress and programme
of the construction works in order to check that relevant environmental laws
have not been violated, and that any foreseeable potential for violating the
laws can be prevented.
8.2.3
The
Contractor should regularly copy relevant documents to the ET Leader so that
the inspection can be carried out smoothly.
The document should include but not limited to the Work Progress
Reports, updated Works Programme, and application
letters for different licences / permits under the
environmental protection laws, and copies of all the valid licences
/ permits held at that time. The site
diary should also be available for the ET Leader's inspection upon request.
8.2.4
After
the document review, the ET Leader should advise the ER, Contractor and IEC of
any non-compliance with the contractual and legislative requirements on
environmental protection and pollution control for their follow-up
actions. If the ET Leader's review
concludes that the current status on licence/permit
application and any environmental protection and pollution control preparation
works may not cope with the works programme or may
result in potential violation of environmental protection and pollution control
requirements, the ET Leader also advise the Contractor and the ER accordingly.
8.2.5
Upon receipt
of the advice, the Contractor should undertake immediate actions. The ER should follow up to ensure that
appropriate action has been taken in order to satisfy contractual and legal
requirements.
24-hour Dedicated Hotline for Public Complaints
and Enquiries
8.3.1
The
Contractor should set up a 24-hour hotline dedicated to the Project to receive
and respond to complaints or enquires from the public, media, and community groups
in the vicinity of the site throughout the construction period of the
Project. The Contractor should display
conspicuously the telephone number of the 24-hour hotline on the construction
site(s) at all vehicular site entrances / exits or at a convenient
location for public information at all times.
Environmental Complaints
8.3.2
Complaints
should be referred to the ET Leader for carrying out complaint investigation
procedures. The ET Leader should
undertake the following procedures upon receipt of any complaint:
1.
Log complaint and date of receipt onto the complaint database
and inform the IEC immediately;
2.
Investigate the complaint to determine its validity, and to
assess whether the source of the problem is due to works activities;
3.
Identify mitigation measures in consultation with the IEC if
a complaint is valid and due to works;
4.
Advise the Contractor accordingly if mitigation measures are
required;
5.
Review the Contractor's response on the identified mitigation
measures, and the updated situation;
6.
If the complaint is transferred from EPD, submit interim
report to EPD after endorsement by IEC on status of the complaint investigation
and follow-up action within the time frame assigned by EPD;
7.
Undertake additional monitoring and audit to verify the
situation if necessary, and review that circumstances leading to the complaint
do not recur;
8.
Report the investigation results and the subsequent actions
to the complainant (If the source of complaint is EPD, the results should be
reported within the time frame assigned by EPD); and
9.
Record the complaint, investigation, subsequent actions and
results in the monthly EM&A reports.
8.3.3
During
the complaint investigation work, the Contractor and ER should cooperate with
the ET Leader in providing all the necessary information and assistance for
completion of the investigation. If
mitigation measures are identified in the investigation, the Contractor should
promptly carry out the mitigation. The
ER should ensure that the measures have been carried out by the
Contractor.
8.3.4
A sample
Complaint Log is provided in Annex C.
9.1.1
EM&A
reports can be provided in an electronic medium upon agreement with DSD and EPD
on the format. The monitoring data
(baseline and impact) should also be made available through an internet website
that is agreed with relevant authority.
9.1.2
The ET Leader
should prepare and submit the following reports:
· Baseline Monitoring
Report;
· Monthly EM&A
Reports;
· Quarterly EM&A
Summary Reports; and
· Final EM&A Review
Report.
9.1.3
In
accordance with Annex 21 of the EIAO-TM, the monthly, quarterly summary and final
review EM&A reports should be made available to the Director of
Environmental Protection (DEP).
9.2.1
The ET
should prepare and submit a Baseline Monitoring Report no less than 2 weeks
before commencement of the works for the Project for agreement on the A/L
Levels. Copies of the Baseline
Monitoring Report should be submitted to the Contractor(s), the IEC, ER, DSD
and EPD as appropriate. The ET should
liaise with the relevant parties to confirm the exact number of copies required.
9.2.2
The
Baseline Monitoring Report for the construction phase should cover the baseline
odour and noise levels as well as water quality. It will include the following as a minimum:
(1) Up to half a page executive summary;
(2) Brief project background information;
(3) Drawings showing locations of the baseline monitoring stations;
(4) Monitoring results (in both hard and diskette copies) together with the following information:
a. monitoring methodology;
b. name of laboratory and types of equipment used and calibration details;
c. parameters monitored;
d. monitoring locations (and depth if applicable);
e. monitoring date, time, frequency and duration; and
f. QA/QC results and detection limits.
(5) Details on influencing factors, including:
a. major activities, if any, being carried out on the site during the period;
b. weather conditions during the period; and
c. other factors which might affect the results.
(6) Determination of the A/L Levels for each monitoring parameter and statistical analysis of the baseline data, the analysis shall conclude if there is any significant difference between control and impact stations for the monitored parameters;
(7) Revisions for inclusion in the EM&A Manual; and
(8) Comments, recommendations and conclusions.
9.3.1
The
results and findings of the construction phase EM&A work required in this
Manual will be recorded in the Monthly EM&A Reports prepared by the ET
Leader. The EM&A report should be
prepared and submitted within 2 weeks of the end of each reporting month, with
the first report due the month after construction commenced. Each Monthly EM&A Report should be
submitted to the following parties: the Contractor(s),
the IEC, ER, DSD and the EPD, as well as to other relevant departments as
required. 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 reports in both hard copy and electronic
medium.
9.3.2
The ET
Leader should review the number and location of monitoring stations and
parameters every six months, or on as needed basis, to cater for any changes in
the surrounding environment and the nature of works in progress.
9.3.3
Contents
of First Monthly EM&A Report should at least include the following:
(1) Executive summary (1-2 pages), comprising:
a.
breaches of
b. complaint Log;
c. notifications of any summons and successful prosecutions;
d. reporting changes; and
e. forecast of impact predictions.
(2) Basic project information including a synopsis of the project organisation, programme and management structure.
(3) Environmental Status, comprising:
a. works undertaken during the month with illustrations; and
b. drawing showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations.
(4) A brief summary of EM&A requirements including:
a. monitoring parameters;
b. environmental quality performance limits (A/L levels);
c. EAPs;
d. environmental mitigation measures, as recommended in the EIA Report; and
e. environmental requirements in contract documents.
(5) Advice on the implementation of environmental protection, mitigation and pollution control measures as recommended in the EIA Report and summarised in the updated implementation schedule.
(6) Monitoring results (in both hard and diskette copies) together with the following information;
a. monitoring methodology;
b. name of laboratory and equipment used and calibration details;
c. parameters monitored;
d. monitoring locations (and depth); and
e. monitoring date, time, frequency, and duration;
(7) Graphical plots of trends of monitored parameters for representative monitoring stations annotated against the following:
a. major activities being carried out on site during the period;
b. weather conditions during the period; and
c. any other factors which might affect the monitoring results;
(8) Advice on the solid and liquid wastes management.
(9) A summary of non-compliance (exceedances) of the environmental quality performance limits (A/L levels).
(10) A review of the reasons for and the implications of non-compliance including a review of pollution sources and working procedures.
(11) A description of the actions taken in the event of non-compliance and deficiency reporting and any follow-up procedures related to earlier non-compliance.
(12) A summary record of complaints received (written or verbal) for each media, including locations and nature of complaints, liaison and consultation undertaken, actions and follow-up procedures taken and summary of complaints.
(13) A summary record of notifications of summons, successful prosecutions for breaches of environmental protection/pollution control legislation and actions to rectify such breaches.
(14) A forecast of the works programme, impact predictions and monitoring schedule for the next one month; and
(15) Comments, recommendations and conclusions for the monitoring period.
9.3.4
Contents
of the Subsequent Monthly EM&A Reports shall at least include the
following:
(1) Executive summary (1-2 pages), including:
a. breaches of A/L levels;
b. complaint log;
c. notifications of any summons and successful prosecutions;
d. reporting changes; and
e. forecast of impact predictions.
(2) Environmental status, comprising:
a. drawing showing the Project area, any environmental sensitive receivers and the locations of the monitoring and control stations;
b. summary of non-compliance with the environmental quality performance limits; and
c. summary of complaints.
(3) Environmental issues and actions, comprising:
a. review issues carried forward and any follow-up procedures related to earlier non-compliance (complaints and deficiencies);
b. description of the actions taken in the event of non-compliance and deficiency reporting;
c. recommendations (should be specific and target the appropriate party for action); and
d. implementation status of the mitigation measures and the corresponding effectiveness of the measures.
(4) Appendices, including:
a. A/L levels;
b. graphical plots of trends of monitored parameters at key stations over the past reporting month for representative monitoring stations annotated against the following: major activities being carried out on site during the period; weather conditions during the period; and any other factors which might affect the monitoring results;
c. monitoring schedule for the present and next reporting period;
d. cumulative complaints statistics; and
e. details of complaints, outstanding issues and deficiencies.
9.4.1
The ET
Leader should submit Quarterly EM&A Summary Reports for the construction
phase EM&A works only. These reports
should contain at least the following information:
(1)
Executive summary (up to half a page).
(2)
Basic project information including a synopsis of the Project
organisation, programme,
contacts of key management, compliance with EP condition (status of submission)
and a synopsis of work undertaken during the quarter.
(3)
A brief summary of EM&A requirements
including:
a.
monitoring parameters;
b.
environmental quality performance limits (A/L
levels); and
c.
environmental mitigation measures, as
recommended in the EIA Report.
(4) Advice on the implementation of environmental protection and pollution control/mitigation measures as recommended in the EIA Report and summarised in the updated Implementation Schedule.
(5) Drawings showing the Project area, any environmental sensitive receivers and the locations of the monitoring and control stations.
(6) Graphical plots of the trends of monitored parameters over the past four months (the last month of the previous quarter and the present quarter) for representative monitoring stations annotated against:
a. the major activities being carried out on site during the period;
b. weather conditions during the period; and
c. any other factors which might affect the monitoring results.
(7) Advice on the solid and liquid wastes management.
(8) A summary of non-compliance (exceedances) of the environmental quality performance limits (A/L levels).
(9) An Impact Prediction Review will be prepared to compare project predictions with actual impacts for the purpose of assessing the accuracy of predictions on the EIA study. The review will focus on the comparison between the EIA study prediction with the EM&A monitoring results. If any excessive variation was found, a summary of investigation and follow up procedure taken should be addressed accordingly.
(10) A brief review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures.
(11) A summary description of the actions taken in the event of non-compliance and any follow-up procedures related to earlier non-compliance.
(12) A summarised record of complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken.
(13) Comments (e.g. effectiveness and efficiency of the mitigation measures), recommendations (e.g. any improvement in the EM&A programme) and conclusions for the quarter.
(14) Proponents' contacts for the public to make enquiries.
9.5.1
A Final
EM&A Review Report should be prepared by the ET at the end of the
construction phase. The Final EM&A
Review Reports should contain at least the following information:
(1) Executive Summary (1-2 pages).
(2) Drawings showing the project area, any environmental sensitive receivers and the locations of the monitoring and control stations.
(3) Basic project information including a synopsis of the project organization, contacts for key management staff and a synopsis of work undertaken during the course of the Project.
(4) A brief summary of EM&A requirements including:
a. environmental mitigation measures as recommended in the EIA Report;
b. environmental impact hypotheses tested;
c. environmental quality performance limits (A/L Levels);
d. monitoring parameters; and
e. EAPs.
(5) A summary of the implementation status of environmental protection and pollution control/mitigation measures as recommended in the EIA Report and summarised in the updated Implementation Schedule.
(6) Graphical plots and the statistical analysis of the trends of monitored parameters over the course of the project including the post-project monitoring for monitoring stations annotated against the following:
a. the major activities being carried out on site during the period;
b. weather conditions during the period; and
c. any other factors which might affect the monitoring results;
(7) A summary of non-compliance (exceedances) of the environmental quality performance limits (A/L levels).
(8) A review of the reasons for and the implications of non-compliance including review of pollution sources and working procedures as appropriate.
(9) A description of the actions taken in the event of non-compliance.
(10) A summary record of complaints received (written or verbal) for each media, liaison and consultation undertaken, actions and follow-up procedures taken.
(11) A summary record of notifications of summonses and successful prosecutions for breaches of the current environmental protection/pollution control legislations, locations and nature of the breaches investigation, follow-up actions taken and results.
(12) A comparison of the EM&A data with the EIA predictions with annotations and explanations for any discrepancies, including a review of the validity of EIA predictions and identification of shortcomings in the EIA recommendations.
(13) A review of the monitoring methodology adopted and with the benefit of hindsight, comment on its effectiveness, including cost effectiveness;
(14) A review of the success of the EM&A programme, including a review of the effectiveness and efficiency of the mitigation measures, and recommendations for any improvements in the EM&A programme.
(15) A clear cut statement on the environmental acceptability of the project with reference to specific impact hypotheses and a conclusion to state the return to ambient and/or the predicted scenario as the EIA findings.
9.6.1
Though
documents including the field monitoring records, laboratory analysis records,
and site inspection forms are not required to be included in the EM&A
Reports for submission, they should be kept by the ET Leader and ready for
inspection upon request. Relevant
information should be clearly and systematically recorded in the
documents.
9.6.2
Monitoring
data should be recorded in magnetic media, and the software copy should be
available upon request. The documents
and data should be kept for at least one year after the completion of the
construction phase EM&A works.
9.7.1
To
enable the public inspection of the Baseline Monitoring Report and Monthly
EM&A Reports via the EIAO Internet Website and at the EIAO Register Office,
electronic copies of Monthly EM&A Reports should be prepared in Hyper Text
Markup Language (HTML) (version 4.0 or later) and in Portable Document Format
(PDF, version 4.0 or later), unless otherwise agreed by EPD and should be
submitted at the same time as the hard copies.
For the HTML version, a content page capable of providing hyperlink to
each section and sub-section of the EM&A Reports should be included in the
beginning of the document. Hyperlinks to
figures, drawings and tables in the EM&A Reports should be provided in the
main text where the respective references are made. Graphics in the reports should be in
interlaced GIF format unless otherwise agreed by EPD. The content of the electronic copies of the
Monthly EM&A Reports must be the same as the hard copies.
9.7.2
The
environmental monitoring data should be made available to the public via the
EIAO Internet Website and the EIAO Register Office.
9.7.3
The
internet website as described above will enable user-friendly public access to
the monitoring data and with features capable of:
· providing access to
environmental monitoring data collected since the commencement of works;
· searching by data;
· searching by types of
monitoring data;
· hyperlinks to relevant
monitoring data after searching; and
· or otherwise as
agreed by EPD.
9.8.1
With
reference to EAPs, when the environmental quality limits are exceeded, the ET
should notify the IEC, Contractor(s), ER, DSD and EPD as appropriate within 24
hours of the identification of the exceedance.
The notification should be followed up with each party on the results of
the investigation, proposed remediation action and success of the action taken,
with any necessary follow-up proposals. A
sample template for the notification is provided in Annex D.
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