1.1
Background
The
relocation of Yiu Lian Floating Dock No. 3 comprises decommissioning of the Yiu
Lian No. 3 Floating Dock (the Dock) at Yam O Wan and a proposed
site/reinstatement of the Dock at the south west coast of Tsing Yi.
A
small scale of marine sediment dredging works will be undertaken at both the
existing site and the proposed site for its decommissioning and
reinstatement. During the
dredging, marine sediments leaking through the dredger can be released into the
water column, thus leading to an elevated level of water pollution such as an
elevation of suspended solids (SS) in the adjacent marine water. The coarse materials, such as sand and
gravel, of the released sediment, will quickly settle back to the seabed close
to the dredging areas. However fine
particles, such as silt and clay, together with any contaminants they may
carry, will be transported away from the dredging site by oceanic currents and
tides and then potentially lead to an adverse environmental effect on sensitive
receivers (SRs).
The
future operation of the Dock at Tsing Yi will generate a certain volume of
intermittent industrial wastewater from hull washing which will be discharged
into the marine water after effective screening. Disposal of the effluents will have potential adverse
impacts on the marine environment and SRs. Domestic wastewater generated on the dock will be collected
and treated on board with an appropriate sewerage treatment system. The treated effluent will then be
discharged to the marine water.
These effluents may cause potential impacts to the marine
environment.
In
accordance with the EIA report, an Environmental Monitoring and Audit
(EM&A) programme for water quality should be implemented during the
decommissioning, reinstatement and operation of the Dock to provide a
monitoring mechanism for the potential water quality impacts.
1.2
Purpose of Manual
The
purpose of this EM&A Manual is to guide the setup of a water quality
monitoring and environmental audit procedure to ensure compliance with the
relevant environmental regulations and legislations. This Programme will be used to assess the effectiveness of
the recommended mitigation measures and to identify any further need for
additional mitigation measures or remedial action. This Programme outlines the water monitoring and audit to be
undertaken during the dock decommissioning, reinstatement and operation. It aims to provide systematic
procedures for monitoring, auditing and minimising of the water quality impacts
associated with the sediment dredging works and the future dock operation.
Hong
Kong Water Pollution Control Ordinance and the Hong Kong Planning Standards and
Guidelines are the environmental standards and guidelines for the preparation
of this Manual.
This
Manual contains the following:
(i)
responsibilities of the Project Proponent, the Contractor, the
Independent Environmental Checker (IEC) and the Environmental Team (ET) with
respect to the environmental monitoring and audit requirements during the
course of the project;
(ii)
information on project organisation and programming of
construction activities for the project;
(iii)
requirements with respect to the project construction schedule
and the necessary water quality monitoring and audit programme to track the
water quality impacts;
(iv)
full details of the methodologies to be adopted, including all
field, laboratory and analytical procedures, and details on quality assurance
and quality control;
(v)
definition of Action and Limit Levels;
(vi)
establishment of Event and Action Plans;
(vii)
requirements of reviewing pollution sources and working
procedures in the event of non-compliance with the environmental criteria or
complaints;
(viii)
requirements of presentation of environmental monitoring and
audit data and appropriate reporting procedures; and
(ix)complaint
resolution procedures.
1.3
Environmental Monitoring and Audit Requirements
The
potential environmental impacts arising from both the construction and
operation phases have been studied and presented in the EIA Report. Appropriate mitigation measures have
been recommended and should be implemented to minimise the potential
environmental impacts of the Project.
An implementation schedule of the recommended mitigation measures for
water quality control is presented in Appendix 1.
1.4
Project Organisation
The
project organisation and lines of communication with respect to environmental
protection work are shown in Figure 1-1.
The
responsibilities of respective parties are given in the following sub-sections.
1.4.1
The Project Proponent
Yiu
Lian, the project proponent, is responsible for:
§
employing an IEC to audit and verify the overall environmental
performance of the Project and to assess the effectiveness of the ET in their
duties;
§
employing an ET to implement the EM&A Programme;
§
broad supervision of the EM&A Programme, the ET and
the timely delivery and quality of the outputs;
§
ensuring the EM&A Programme is fully implemented in
accordance with the Environmental Permit (EP) and this EM&A Manual;
§
liaison with the Contractor on environmental issues;
§
providing appropriate information for the monthly
EM&A report such as construction activities, design changes, public
consultations and liaison meetings involving the District Councils, area
committees, interest groups, etc.;
§
meeting the agreed objectives and deadlines as set out
in this EM&A Manual;
§
monitoring the Contractor’s compliance with contract
specifications and environmental requirements including the effective
implementation and operation of the environmental mitigation measures;
§
instructing the Contractor to follow the agreed
protocols or those in the Contract Specifications in the event of exceedances
or complaints; and
§
take prompt action in accordance with the Event
Contingency Plan in the event of any exceedance.
1.4.2
The Independent Environmental Checker (IEC)
The
Project Proponent shall employ an IEC before the commencement of the construction
of the Project. The IEC shall have
at least 7 years experience in EM&A or environmental management.
The duties of IEC shall comprise the following :
§
review and audit all aspects of the EM&A programme;
§
validate and confirm the accuracy of monitoring
results, monitoring equipment, monitoring locations, monitoring procedures and
locations of sensitive receivers;
§
carry out random sample check and audit on monitoring
data and sampling procedures, etc.;
§
audit EIA recommendations and requirements against the
status of implementation of environmental protection measures on site;
§
review the effectiveness of environmental mitigation
measures and project environmental performance;
§
on a need basis, audit the Contractor’s construction
methodology and agree the least impact alternative in consultation with the ET
leader and the Contractor;
§
check complaint cases and the effectiveness of
corrective measures;
§
review EM&A report submitted by the ET Leader; and
§
feedback audit results to ET and Project Proponent by
signing off relevant EM&A proformas.
1.4.3
The Contractor
The
Contractor shall:
§
work within the scope of the Contract Specifications
and other tender conditions;
§
comply with and observe Ordinances, by-laws, regulations
and rules in force in Hong Kong relevant to the control of pollution;
§
minimise the environmental impacts arising from the
construction activities;
§
cooperate with the environmental performance review
undertaken by the ET and Project Proponent and take appropriate corrective
actions as instructed by the Project Proponent;
§
implement the mitigation measures recommended;
§
submit proposals on mitigation measures in case of
exceedances of Action and Limit Levels in accordance with the Event and Action
Plans;
§
implement the mitigation measures to reduce impact
where Action and Limit Levels are exceeded; and
§
adhere to the procedures for carrying out complaint
investigation in accordance with Section 3.3 of this report.
1.4.4
The Environmental Team (ET)
The
duties of the ET are:
§
to monitor the various water quality parameters as
required by this EM&A Manual;
§
to review and comment on the Contractor’s construction
programme and working methodologies with respect to water pollution control and
environmental mitigation, to identify environmental issues that may require
mitigation before any problem arises, and to check that the construction work
complies with the conditions stated in the environmental permit;
§
to carry out water quality monitoring to audit the site
environmental conditions and to prepare EM&A reports;
§
to report the environmental monitoring and audit
results to the Project Proponent and Contractor;
§
to recommend suitable mitigation measures to the
Project Proponent and the Contractor in the case of exceedance of Action and
Limit Levels in accordance with the Event and Action Plans;
§
to undertake regular site inspections and to report to
the Project Proponent and the Contractor of any potential non-compliances;
§
to adhere to the procedures for carrying out complaint
investigation in accordance with Section 3.3 of this Manual;
§
timely submission of the EM&A report to the Project
Proponent and the Director of EPD; and
§
to notify EPD of any exceedances of the Limit Level of
water quality parameters. A template
for the notification is provided in Appendix 2.
The ET
shall be led by an ET Leader who shall have relevant education, training,
knowledge, experience and professional qualifications and at least 7 years
experience in EM&A and environmental management, subject to the approval of
the Project Proponent and the Director of Environmental Protection.
1.5
Project Description
The
existing floating dock, Yiu Lian No. 3 Floating Dock, is located at Yam O Wan
northeast of Lantua and has been in operation since July 1989. In accordance with the Government’s
rezoning plan for northeast Lantau, Yiu Lian has proposed to relocate the Dock
form the existing site at Yam O Wan to the southwest coast of Tsing Yi. Figure 1-2 shows the existing location
and the proposed new location.
The
existing dock is an individual caisson dock with continuous caisson and side
wings, suitable for docking vessels of a total docking weight of up to 43,000
metric tons, or catering a ship in size up to 43 meters in width and 300 meters
in length. Principle dimensions of
the Dock are:
|
Length over all
Length over pontoon
|
304.00 m
287.00 m
|
|
Breadth
over pontoon
|
54.80
m
|
|
Breadth
of sidewall
|
3.90 m
|
|
Depth
of pontoon at centre line
|
5.00 m
|
|
Depth
of pontoon at side
|
4.90 m
|
|
Height
of top deck at side
|
18.20
m
|
|
Height
of safety deck at side
|
13.90
m
|
|
Maximum
submerged draught
|
16.20
m
|
1.6
Water Sensitive Receivers (SRs)
Water
sensitive receivers of gazetted and non-gazetted bathing beaches, secondary contact
recreation areas, water intakes, fish culture zones, marine conservation areas,
the North Western Water Control Zone (WZC) and the Western Buffer WCZ have been
identified in the EIA study.
Figure
1-3 shows the coverage of the North Western WCZ and the Western Buffer WCZ.
Figure
1-4 shows locations of the beaches subject to the potential impact of this
Project. Most of the beaches are
located along the southern coasts of New Territories and at Ma Wan. The beaches closest to the existing or
the proposed sited are the gazetted Ma Wan Tung Wan Beach and the beaches along
the southern coasts of New Territories.
They are located over 2000m away from either of the dock sites.
There
are 4 marine parks and 26 fish culture zones in Hong Kong. Only one fish culture
zone (Ma Wan fish culture zone with an approximate size of 10001 to 20000 m2)
and no marine parks are located in the northern Lantau and Tsing Yi area, as
shown in Figure 1-5. The distance
from either the existing or proposed site to Ma Wan fish culture zone is over
2000m.
1.7
Proposed Work Programme
The
construction works for the relocation of the Dock will take approximately 65
days. A tentative work programme
is shown in Appendix 3.
_files/image006.jpg)
Figure 1-2 The
Existing and Proposed Locations of Floating Dock No.3
|
_files/image008.jpg)
Source: EPD marine water quality in Hong Kong
2004
(7) – North Western WCZ
(8) – Western Buffer WCZ
|
|
|
Figure 1-3 Locations
of Relevant Water Control Zones
|
|
|
_files/image010.gif)
|
|
|
Legend
|
|
|
|
1 – Ma Wan Tung Wan Beach
2 – Approach Beach
3 – Ting Kau Beach
4 – Lido Beach
5 – Casam Beach
6 – Hoi Mei Wan Beach
7 – Gemini Beach
|
8 – Anglers’ Beach
9 – Golden Beach
10 – Cafeteria Old Beach
11 – Cafeteria New Beach
12 – Kadoorie Beach
13 – Castle Peak Beach
|
|
|
|
|
|
Figure 1-4 Locations
of Adjacent Beaches
|
|
|
_files/image012.gif)
|
|
Figure 1-5 Locations
of Adjacent Fish Culture Zones
|
|
|
|
|
2
Water Quality
Monitoring
2.1
Construction Phase Monitoring
The
key water quality impact during the construction phase is the potential
elevation of suspended solids (SS) level in the marine water close to the works
sites due to the dredging work of the Project. According to the EIA study, regular monitoring of the SS
level near the works sites is recommended during both the decommissioning and
reinstatement of the dock to ensure the compliance with the water quality
standards.
2.1.1
Water Quality Parameters
Monitoring of turbidity, dissolved oxygen
(DO) and suspended solids (SS) shall be carried out at both the existing site
and the proposed new site. DO and
turbidity are measured in-situ while SS is determined in laboratory.
In association with the water quality
parameters, some relevant data shall also be measured, such as monitoring
location/position, time, water depth, water temperature, salinity, DO
saturation, weather conditions, sea conditions, tidal stage, and any special
phenomena and work underway at the construction site etc.
A sample monitoring record sheet is shown in
Figure 2-8 for reference.
2.1.2
Sampling Procedures and Monitoring Equipment
In-situ measurements and water sampling
shall be conducted in duplicate at three water depths, namely, 1m below water
surface, mid-depth and 1m above seabed.
If the water depth is less than 6m, the mid-depth may be omitted. Should the water depth be less than 3m,
only the mid-depth will be monitored.
Water samples for all monitoring parameters shall be collected, stored,
preserved and analysed according to the Standard Methods, APHA 17 and/or agreed
by IEC and EPD.
Dissolved Oxygen and Temperature Measuring
Equipment
(i)
The instrument should be a portable, weatherproof dissolved
oxygen measuring instrument complete with cable, sensor, comprehensive
operation manuals, and use a DC power source. It should be capable of measuring:-
§
a dissolved oxygen level in the range of 0‑20 mg/l and
0‑200% saturation
§
a temperature of 0‑45 degree Celsius
(ii)
It should have a membrane electrode with automatic temperature
compensation complete with a cable.
Sufficient stocks of spare electrodes and cables should be available for
replacement where necessary. (e.g. YSI model 59 meter, YSI 5739 probe, YSI
5795A submersible stirrer with reel and cable or an approved similar
instrument).
(iii)
Should salinity compensation not be build-in in the DO
equipment, in-situ salinity shall be measured to calibrate the DO equipment
prior to each DO measurement.
Turbidity Measurement Instrument
The instrument should be a portable,
weatherproof turbidity-measuring instrument complete with comprehensive
operation manual. The equipment
should use a DC power source. It
should have a photoelectric sensor capable of measuring turbidity between 0‑1000
NTU and be complete with a cable (e.g. Hach model 2100P or an approved similar
instrument).
Suspended Solids
A water sampler comprises a transparent PVC
cylinder, with a capacity of not less than 2 litres, and can be effectively
sealed with latex cups at both ends.
The sampler should have a positive latching system to keep it open and
prevent premature closure until released by a messenger when the sampler is at
the selected water depth (e.g. Kahlsico Water Sampler or an approved similar
instrument).
Water samples for suspended solids
measurement 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 for analysis.
Water Depth Detector
A portable, battery-operated echo sounder
shall be used for the determination of water depth at each designated
monitoring station. This unit can
either be handheld or affixed to the bottom of the work boat, if the same
vessel is to be used throughout the monitoring programme.
Salinity
A portable salinometer capable of measuring
salinity in the range of 0-40 ppt shall be provided for measuring salinity of
the water at each of monitoring location.
Locating the Monitoring Site
A hand-held or boat-fixed type digital
Global Positioning System (GPS) with way point bearing indication or other
equivalent instrument of similar accuracy shall be provided and used during
monitoring to ensure the monitoring vessel is at the correct location before
taking measurements.
Calibration and Accuracy of Instrument
All in-situ monitoring instrument shall be
checked, calibrated and certified by a laboratory accredited under HOKLAS or
equivalent before use, and subsequently re-calibrated at 3 monthly intervals throughout all stages of the water
quality monitoring. Responses of sensors and electrodes should be checked with
certified standard solutions before each use. Wet bulb calibration for a DO meter shall be carried out
before measurement at each monitoring location.
For the on site calibration of field
equipment by the ET, the BS 127:1993, "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 shall also be made available so
that monitoring can proceed uninterrupted even when some equipment is under maintenance,
calibration, etc.
2.1.3
Laboratory Measurement / Analysis
Analysis of suspended solids shall be
carried out in a HOKLAS accredited laboratory. Water samples of about 1L shall be collected at the
monitoring stations for carrying out the laboratory SS determination. The detection limit shall be 1mg/l or
better. The SS determination work
shall start within 24 hours after collection of the water samples. The SS determination shall follow APHA
17ed 2540D or equivalent methods subject to the approval of IEC and EPD.
If a site laboratory is set up or a
non-HOKLAS accredited laboratory is hired for carrying out the laboratory
analysis, the laboratory equipment, analytical procedures, and quality control
shall be approved by the IEC and EPD.
All the analysis shall be witnessed by the IEC. The ET shall provide the IEC with one
copy of the relevant chapters of the "Standard Methods for the Examination
of Water and Wastewater" updated edition and any other relevant document
for his reference.
2.1.4
Monitoring Locations
Monitoring
will be carried out at the following locations for both existing site and
proposed site:
Impact Monitoring Stations
There are three impact monitoring stations at the
existing site. Their locations are
shown in Figure 2-6.
There are three impact monitoring stations at the
proposed site. Their locations are
shown in Figure 2-7.
Control Stations
Control stations are located in areas unaffected by
the dock decommissioning or reinstatement works. Control stations are necessary for comparing the water
quality at potentially impacted sites with the ambient water quality. Control stations will therefore be used
to determine the level for non-compliance. Figures 2-6 and 2-7 show the locations of four control
stations, C1, C2, C3 and C4 which will be used during the course of the impact
monitoring for the existing site and proposed site.
The
water quality monitoring stations are listed in Table 2-1.
|
Monitoring Station
|
Easting
|
Northing
|
|
Impact Monitoring
Station 1 (WM1)
|
821398
|
822239
|
|
Impact
Monitoring Station 2 (WM2)
|
821811
|
823115
|
|
Impact
Monitoring Station 3 (WM3)
|
822709
|
823376
|
|
Impact
Monitoring Station 4 (WM4)
|
826848
|
821228
|
|
Impact
Monitoring Station 5 (WM5)
|
827251
|
822114
|
|
Impact
Monitoring Station 6 (WM6)
|
826916
|
821780
|
|
Control
Station 1 (C1)
|
820448
|
822920
|
|
Control
Station 2 (C2)
|
823553
|
824017
|
|
Control
Station 3 (C3)
|
826995
|
822555
|
|
Control
Station 4 (C4)
|
827246
|
820419
|
Table 2-1 Water
Quality Monitoring Stations
If
there is any change in the status and locations of water quality sensitive
receivers and the marine activities site after issuing this report, the ET
Leader shall propose updated monitoring locations and seek approval from the
IEC and EPD.
2.1.5
Baseline Monitoring Programme
The aim of baseline monitoring is to
determine the typical baseline water quality conditions without any works of
this Project being undertaken, and to establish the suitability of the selected
control and impact monitoring stations.
2.1.6
Baseline Monitoring at Control and Impact Stations
The baseline condition shall be established
by measuring the water quality parameters specified in Section 2.1.1. The measurements shall be taken at all
specified impact monitoring stations and control stations, 3 days per week, at
mid-flood and mid-ebb tides, for three weeks prior to the commencement of
dredging work.
Prior to any sampling it should be ensured
that there are no marine construction activities in the vicinity of the
stations.
In exceptional cases when insufficient
baseline monitoring data or questionable result are obtained, the ET Leader
shall seek approval form the IEC and EPD on appropriate data to be used as the
baseline reference.
Baseline monitoring schedule shall be
provided to the Project Proponent, IEC and EPD 1 week before the commencement
of baseline monitoring. The
interval between 2 sets of monitoring shall not be less than 36 hours. Following the baseline monitoring a
baseline monitoring report should be produced and approved by EPD prior to the
commencement of the construction works.
The baseline monitoring report should be certified by the ET Leader and
verified by the IEC before submitting to EPD.
2.1.7
Impact Monitoring
During
the course of the dredging activity at either the existing site or the propose
site of the floating dock, monitoring shall be undertaken three days per week,
at mid-flood and mid-ebb tides, with sampling/measurement at all monitoring
stations during both mid flood tide and mid ebb tide. The interval between two sets of monitoring shall not be
less than 36 hours except where there are exceedances of Action and/or Limit
Levels, in which case the monitoring frequency will be increased.
Tentative
water quality monitoring schedule should be provided to the IEC and EPD on or
before the first day of the monitoring month. The IEC and EPD should be notified immediately of any
changes in the tentative schedule.
2.1.8
Post-Construction Monitoring
Upon
completion of dredging activities, a post-construction monitoring exercise on
water quality shall be carried out for three weeks for both the existing site
and proposed site in the same manner as for the impact monitoring.
2.2
Operational Phase Monitoring
The
key water quality impact during the operational phase is the industrial
effluents generated by hull washing during the normal dock operation. Monitor the industrial effluent quality
for the first 6 months of the operation of the relocated dock in Tsing Yi is
recommended in the EIA study.
Thus, the ET shall carry out the operational phase monitoring in
accordance with the requirements as described in the following subsections.
2.2.1
Monitoring Parameters
Monitoring
parameters shall be those determinants for the industrial effluent arising from
the operation of the dock as stated in the effluent discharge license issued by
EPD.
2.2.2
Sampling Location and Frequency
The
ET shall collect one effluent sample from different wastewater streams on a
monthly basis at the sampling point(s) as specified in the effluent discharge
licence for testing.
2.2.3
Laboratory Measurement / Analysis
Analysis
shall be carried out in a HOKLAS accredited laboratory. Sample with sufficient sample size as
advised by the laboratory shall be collected for analysing all parameters
required in Section 2.2.1. The
detection limit and analytical procedure and method shall be provided to the
IEC and EPD for their approval prior to the operational monitoring work.
If
a site laboratory is set up or a non-HOKLAS accredited laboratory is hired for
carrying out the laboratory analysis, the laboratory equipment, analytical
procedures, and quality control shall be approved by the IEC and EPD. All the analysis shall be witnessed by
the IEC. The ET shall provide the
IEC with one copy of the relevant chapters of the "Standard Methods for
the Examination of Water and Wastewater" updated edition and any other
relevant document for his reference.
2.2.4
Sample Handling
Water
samples for all monitoring parameters shall be collected, stored, preserved and
analysed according to the Standard Methods, APHA 17 and/or agreed by the IEC
and EPD.
2.3
Event and Action Plan for Water Quality
Monitoring
The
water quality criteria, namely Action and Limit Levels for the construction
phase monitoring are shown in Table 2-2.
For the operational phase monitoring, there will be no Action Level. The Limit Levels will be the limits of
the determinants as stipulated in the effluent discharge licence.
Should
the monitoring results of the water quality parameters at any designated impact
monitoring stations during the construction phase and at any sampling points
during operational phase indicate that the water quality criteria exceed the
Action or Limit Levels, the actions in accordance with the Event and Action
Plan in Table 2-3 shall be carried out.
|
Parameters
|
Action Level
|
Limit Level
|
|
DO1
in mg/l
(Surface
Middle & Bottom)
|
Surface
& Middle
5%-ile of baseline data for surface and middle layer
|
Surface
& Middle
1%-ile of baseline data for surface and middle layer
|
|
|
Bottom
5%-ile of baseline data for bottom layer
|
Bottom
1%-ile of baseline data for bottom layer
|
|
Suspended
Solids (SS)
(depth-averaged)2
|
95%-ile of baseline data
|
99%-ile of baseline data
|
|
Turbidity in
NTU (depth-averaged)
|
95%-ile of baseline data
|
99%-ile of baseline data
|
1
For DO, non-compliance
of the water quality limits occurs when monitoring results are lower than the
limits.
2
"depth-averaged"
is calculated by taking the arithmetic means of reading of all three
depths. Non-compliance of the
water quality criteria occurs when monitoring results are higher than the
limits.
Table 2-2 Action
Levels for Water Quality
_files/image014.jpg)
Figure 2-6 Water
Quality Monitoring Stations at the Existing Site
_files/image016.jpg)
Figure 2-7 Water
Quality Monitoring Stations at the Proposed Site
Location
|
|
|
Date
|
|
|
Start Time (hh:mm)
|
|
|
Weather
|
|
|
Sea Conditions
|
|
|
Tidal Mode
|
|
|
Water Depth (m)
|
|
|
Monitoring Depth
|
Surface
|
Middle
|
Bottom
|
|
Salinity
|
|
|
|
|
Temperature (oC)
|
|
|
|
|
DO Saturation (%)
|
|
|
|
|
DO (mg/I)
|
|
|
|
|
Turbidity (NTU)
|
|
|
|
|
Copper (mg/l)
|
|
|
|
|
Tributyltin (mg/l)
|
|
|
|
|
SS Sample Identification
|
|
|
|
|
Observed Construction
Activities
|
<100m from location
|
|
|
>100m from location
|
|
|
Other Observations
|
|
Name
& Designation Signature Date
Recorded
By :
Checked
By :
|
|
Figure 2-8 Water
Quality Monitoring Data Record Sheet
|
3
Site Environmental Audit
3.1
Site Inspection/Audit
Site
inspections/audits shall be undertaken by the ET during the water quality
monitoring/sampling work to ensure that the construction activities shall not
cause any adverse impact to the water quality. The construction activities shall be inspected during the
water quality monitoring and visual inspection shall be carried out to observe
any adverse impact on the water quality, such as any visible suspended solids,
change of water colour or noticeable smell, etc. The Contractor and the Project Proponent shall also inspect
the construction activities on a weekly basis. Site inspections/audits should also ensure that the
construction activities comply with the conditions specified in the
environmental permit.
3.2
Compliance with Legal and Contractual Requirements
There
are contractual environmental protection and pollution control requirements as
well as environmental protection and pollution control laws in Hong Kong with
which the construction activities shall comply.
In
order that the works are in compliance with the contractual requirements, all
the works method statements submitted by the Contractor to the Project
Proponent for approval shall be sent to the ET Leader for vetting to ensure
whether sufficient environmental protection and pollution control measures have
been included.
The
ET Leader shall also review the progress and programme of the works to check
that relevant environmental laws have not been violated and that any
foreseeable potential for violating the laws can be prevented.
The
Contractor shall regularly copy relevant documents to the ET Leader so that the
checking work can be carried out.
The documents shall at a minimum include the updated Work Progress
Reports, the updated Works Programme, the application letters for different
licence/permit under the environmental protection laws, and all valid
licence/permit. The site diary
shall also be available for the ET Leader’s inspection upon his request.
After
reviewing the document, the ET Leader shall advise the IEC, the Project Proponent
and the Contractor of any non-compliance with the contractual and legislative
requirements on environmental protection and pollution control for them to take
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, he shall also
advise the Contractor and the Project Proponent accordingly.
Upon
receipt of the advice, the Contractor shall undertake immediate action to
remedy the situation. The Project
Proponent shall follow up to ensure that appropriate action has been taken by
the Contractor in order that the environmental protection and pollution control
requirements are fulfilled.
3.3
Environmental Complaints
Complaints
shall be referred to the ET Leader for carrying out complaint investigation
procedures. The ET Leader shall
undertake the following procedures upon receipt of the complaint.
(a)
log complaint and date of receipt onto the complaint database;
(b)
investigate the complaint to determine its validity, and to
assess whether the source of the problem is due to works activities;
(c)
if a complaint is valid and due to the works, identify
necessary mitigation measures;
(d)
if mitigation measures are required, advise the Contractor
accordingly;
(e)
review the Contractor’s response on the identified mitigation
measures, and the updated situation;
(f)
if the complaint is transferred from EPD, submit interim
reports to EPD on status of the complaint investigation and follow-up actions
within the time frame assigned by EPD;
(g)
undertake additional monitoring and audit to verify the
situation if necessary;
(h)
report the investigation results and the subsequent actions to
the source of complaint for responding to complaint (If the source of complaint
is EPD, the results should be reported within the time frame assigned by EPD);
and
(i)
record the complaint investigation work.
The
Contractor and Project Proponent shall 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 shall promptly
carry out the mitigation. The
Project Proponent shall ensure that measures have been carried out by the
Contractor.
A flow chart of the complaint response procedure is shown
in Figure 3-9.
4.1
General
The
following reporting requirements are based upon a paper documented
approach. However, the same information
can be provided in an electronic medium upon agreeing the format with the
Project Proponent and EPD. This
would enable a transition from a paper/historic and reactive approach to an
electronic/real time proactive approach.
The Baseline Monitoring Report and Monthly
EM&A Reports should be reviewed by Project Proponent & IEC and submit
to EPD.
4.2
Baseline Monitoring Report
The ET Leader shall prepare and submit a
Baseline Monitoring Report within 10 working days of completion of the baseline
monitoring. Copies of the Baseline
Monitoring Report shall be submitted to the Contractor, the Project Proponent
and EPD. The report should be
supported by the baseline water quality monitoring data in electronic format,
together with details of the monitoring locations, equipment and monitoring
protocols. The Baseline Monitoring
Report shall include at least the following:
§
executive summary;
§
project background information;
§
drawings showing the locations of the baseline
monitoring stations;
§
an updated construction programme with milestones of
environmental mitigation activities;
§
monitoring methodology, equipment used and calibration
details, parameters monitored, locations, dates and times, etc.;
§
monitoring results (in both hard and diskette copies)
including graphical plots;
§
interpretation of the significance of monitoring
results and details of influencing factors;
§
determination of the Action and Limit Levels for each
monitoring parameter and statistical analysis of the baseline data;
§
revisions for inclusion in the EM&A Manual; and
§
comments and conclusions.
4.3
Monthly EM&A Reports
The
results and findings of all EM&A work required in this report for both
construction and operational phases shall be recorded in the monthly EM&A
reports prepared by the ET Leader.
Monthly EM&A Reports shall be prepared and submitted to the EPD
within 10 working days from the end of each calendar month, the first report
will be submitted in the month immediately after construction works
commence. The ET Leader shall
liaise with the parties on the exact number of copies and format of the monthly
reports in both hard copy and electronic medium requirement.
The monthly EM&A report shall include at least the
following:
(i)
1-2 pages executive summary, comprising:
-
breaches of Action or Limit levels
-
complaint log
-
notifications of summons and successful prosecutions
-
future key issues
(ii)
basic project information including a synopsis of the project
organisation, programme and management structure, and the work undertaken
during the month;
(iii)
a brief summary of EM&A requirements including:
-
all monitoring parameters
-
environmental quality performance limits (Action and
Limit Levels)
-
Event-Action Plans
-
environmental mitigation measures
-
environmental requirements in contract documents
(iv)
advice on the implementation status of environmental
protection and pollution control/mitigation measures, summarised in the updated
Implementation Schedule of Mitigation Measures;
(v)
drawings showing the project area, any environmental sensitive
receivers and the locations of the monitoring stations;
(vi)
monitoring results (in both hard and diskette copies) together
with the following information;
-
monitoring methodology;
-
equipment used and calibration details;
-
parameters monitored;
-
monitoring locations;
-
monitoring date, time, frequency, and duration;
(vii)
graphical
plots of trends of monitored parameters for all designated monitoring stations
annotated against the following:
-
major
activities being carried out on site during the period
-
weather
conditions during the period
-
any
other factors which might affect the monitoring results
(viii)
a
summary of non-compliance (exceedances) of the environmental quality
performance limits (Action and Limit Levels);
(ix)
a
review of the reasons for and the implications of non-compliance including
review of pollution sources and working procedures;
(x)
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;
(xi)
a
summary record of all complaints received (written or verbal), including
locations and nature of complaints, liaison and consultation undertaken,
actions and follow-up procedures taken;
(xii)
an
account of the future key issues as reviewed from the works programme and work
method statements;
(xiii)
monitoring
schedule for the next reporting period; and
(xiv)
recommendations
to EM&A programme (if any)
4.4
Data Keeping
The site documents such as the
monitoring field records, laboratory analysis records, site inspection forms,
etc. are not required to be included in the monthly EM&A reports for
submission. However, the document
shall be well kept by the ET Leader and be ready for inspection upon
request. All relevant information
shall be clearly and systematically recorded in the document. The monitoring data shall also be
recorded in magnetic media form, and the soft copy shall be available upon
request. All the documents and
data shall be kept for at least one year after completion of the construction contract.
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