1.0
INTRODUCTION
1.0
1.1
Requirement
(i)
The Employer’s Requirements Part C Appendix
8J and Environmental Permit EP-354/2009/A Condition 2.10 require the Contractor
to submit a Waste Management Plan (WMP) to the Supervising Officer’s
Representative (SOR) at least 1 month before the commencement of the construction
of the Project.
(ii)
Condition 2.10(a) of the Environmental
Permit refers to the supplementary WMP, which is to be submitted one month
prior to the commencement of cut-and-cover tunnel construction in the Southern
Landfall. This part of the works is expected to be commenced in three to four
years-time.
(iii)
Wastes generated from the construction
of the sub-sea tunnels are envisaged to be removed primarily via the Northern
Landfall and potentially via the Southern Landfall towards the end of the
Project. Waste management aspects will be covered under this WMP and the
supplementary WMP.
(iv)
The WMP shall be prepared in accordance
with the requirements of ETWB TC (Works) No. 19/2005 “Environmental Management
on Construction Sites” and the “Interim Guidance Not on Administration of
Environmental Management and Pay for Safety and Environment Scheme for Public
Works Contracts”
1.2
Project Description
(i)
The Works in this Contract, Contract No. HY/2012/08, Tuen Mun – Chek
Lap Kok Link – Northern Connection Sub-sea Tunnel Section,
is comprised of the following parts:
·
A dual 2-lane sub-sea tunnel approximately 5 km long between Tuen Mun and the Hong Kong –
Zhuhai – Macau Bridge Hong Kong Boundary Crossing Facilities (HKBCF);
·
Reclamation to form land of approximately 16.5 hectares for the
tunnel landfall at Tuen Mun;
·
Associated civil, structural, building, geotechnical, marine,
water supplies, drainage, sewage, landscaping works and re-provisioning works
of affected existing facilities, etc.
(ii)
%20to%20EPD_files/image010.gif)
Construction
works began 1 November 2013, starting with marine dredging and reclamation works
for the North Landfall. Land-based excavation and construction works will begin
progressively, as land is formed over 2014. TBM tunneling works will proceed
from the Northern Landfall, once these land-based facilities are ready. The
land-works will include the construction of diaphragm walls, shafts and the
like. The target completion date of construction works will be at October of
2018.
2.0
WASTE MANAGEMENT POLICY
(i)
To demonstrate the Project Team’s commitment on the continual improvement
of our waste management performance, the project waste management policy has
been established as below:
%20to%20EPD_files/image009.jpg)
(ii)
The policy provides a framework in guiding the project team the basic
requirement to be achieved in waste management. Good planning and site
management practices help to minimize over-ordering or misuse of construction
materials, minimize the amount of wastes generated, and reduce the costs of
waste handling and disposal.
3.0
WASTE RELEVANT LEGAL GUIDELINES IN HK
(i)
All legislations related to the
handling, treatment and disposal of wastes in Hong Kong shall be observed with
regard to all wastes generated and requiring disposal due to the construction
stage of the Project. The relevant environmental ordinances and
regulations are:
·
Waste
Disposal (Amendment) Ordinance (Cap. 354)
·
Waste
Disposal (Chemical Waste) (General) Regulation
·
Waste
Disposal (Charge of Disposal of Construction Waste) Regulation
·
Dumping at
Sea Ordinance (Cap. 466)
·
Land
(Miscellaneous Provisions) Ordinance (Cap. 28)
·
Public Health
and Municipal Services Ordinance (Cap.132)
·
Public
Cleansing and Prevention of Nuisances Regulation
(ii)
Other
guideline documents include:
·
Waste
Disposal Plan for Hong Kong (December 1989)
·
New Disposal
Arrangements for Construction Waste (1992)
·
Code of
Practice on the Packaging, Labeling and Storage of Chemical Wastes (1992)
·
Works Branch
Technical Circular (WBTC) No. 32/92, The Use of Tropical Hard Wood on
Construction Site
·
WBTC No.
2/93, Public Dumps
·
WBTC No.
2/93B, Public Filling Facilities
·
WBTC No.
16/96, Wet Soil in Public Dumps
·
WBTC No. 4/98
and 4/98A, Use of Public Fill in Reclamation and Earth Filling Projects
·
Waste
Reduction Framework Plan, 1998 to 2007
·
WBTC No.
25/99, 25/99A and 25/99C, Incorporation of Information on Construction and
Demolition Material Management in Public Works Subcommittee Papers
·
WBTC No.
12/2000, Fill Management
·
WBTC No.
19/2001, Metallic Site Hoardings and Signboards
·
WBTC No. 6/2002
and 6/2002A, Enhanced Specification for Site Cleanliness and Tidiness
·
WBTC No. 12/2002,
Specification Facilitating the Use of Recycled Aggregates
·
ETWBTC No.
33/2002, Management of C&D Material Including Rock
·
ETWBTC No.
34/2002, Management of Dredged / Excavated Sediment
·
ETWBTC No.
31/2004, Trip Ticket System for Disposal of C&D Materials
·
ETWBTC No.
19/2005, Environmental Management for Construction Site
·
DEVBTC No.
6/2010, Trip Ticket System for Disposal of C&D Materials
4.0
WASTE MANAGEMENT HIERARCHY
(i)
DBJV
will adapt a surplus material management hierarchy throughout the works. The management
options can be categorized in terms of preference from an environmental
viewpoint. The options considered preferable will have the least impacts and
are more sustainable in the long term.
%20to%20EPD_files/image042.gif)
%20to%20EPD_files/image013.gif)
%20to%20EPD_files/image012.gif)
|
Hierarchical
Level
|
Method
|
Measures
|
|
Level 1 - Preferred
|
Elimination
|
Waste reduction has been considered in the
pre-tender phases of project development. An optimal level has been achieved,
considering the level of technology at hand.
Further elimination of wastes could be achieved by
means of alternative design and methods, proposed by the Contractor.
|
|
Level 2
|
Reduction at
Source
|
Where the amount of wastes cannot be eliminated by
design and methodology, wastes may be minimized by means of controlling the
production/manufacturing processes at source. For example, pre-casting of
concrete segments at factories will be more effective than in-situ concreting
methods.
To achieve this level of achievement, construction
methodologies must be planned in advance to enable to utilize preferred
component procurement channels. Significant engineering control is needed.
|
|
Level 3
|
Recycling
|
Further to the elimination and reduction
processes, additional engineering and/or subletting approaches will be
considered to recycle and reuse materials as far as practicable, without
substantial treatment. Waste buyback or return arrangements may be agreed
with suppliers. Otherwise, useful materials/commodities may be resold for
reprocessing and reuse.
|
|
Level 4
|
Treatment
|
Where materials cannot be directly recycled or
reused, additional engineering methods will be employed to treat waste
materials, as far as practicable, so that they may be recycled or reused.
For example, slurry treatment plant will allow
water and bentonite slurry to be recycled and
reused for the TBM tunneling works.
Also, slurry treatment will stabilize the
excavated C&D export materials for disposal, potentially enabling the
materials to be reused on site or disposed at public fills, rather than at
marine mud pits or landfills.
|
|
Level 5 – Not Preferred
|
Disposal
|
Only where materials cannot be managed by the
above methods, shall they be removed directly to dumping, in accordance with
methods compliant with statutory and contract requirements.
|
5.0
ORGANISATION,
DUTIES AND RESPONSIBILITIES
5.1
Project Environmental Organisation
(i)
The Contractor has established a management
team to manage all environmental aspects, inclusive of waste management. The
project environmental organization with contact information is presented in Appendix
A.
5.2
Duties and Responsibilities
1.
2.
3.
4.
5.
5.1.
5.2.
5.2.1. Duties
(i)
Pursuant to ER Part
14, Section 25.25 (1), DBJV
has appointed the Environmental Officer as the senior staff member fully
responsible for implementing and overseeing the operation of the Trip Ticket
System (TTS).
(ii)
Site supervision in-charge (e.g. site
superintendent, construction managers, foremen, etc.) are responsible for
ensuring that the Daily Record Summary (DRS) are properly completed and signed properly
before departure of dump trucks. The proforma of the
Daily Record Summary is enclosed in Appendix B.
(iii)
The site supervision is assisted by skilled labour(s),
one at each site exit to ensure that every truck carrying C&D materials
leaving the Site bears a duly completed and signed chit.
5.2.2.
Responsibilities
The responsibilities of the site staffs
are listed as below:
1.
2.
3.
3.1.
3.2.
(i)
Project
Director/ Project Manager
The Project Director / Project Manager will:
·
Ensure
the compliances with all applicable legal and contractual waste disposal
requirements;
·
Reports
to the DBJV Management Board for waste management aspects;
·
Execution,
monitoring and review of waste management system and policy; and
·
Ensure
that sufficient resources are allocated for the implementation of the trip ticket system
and marine dumping operation.
(ii)
General
Construction Manager / Construction Manager
The General Construction Managers (GCM) / Construction Managers (CM) appointed
for the Contract are responsible for the following duties in relation to waste
management:
·
Ensure
the compliances with all applicable legal and contractual waste disposal
requirements;
·
Ensure that the Daily Record Summary (DRS) are
properly completed and signed properly before departure of dump trucks;
·
Identify and
provide all necessary resources for the implementation of waste
disposal measures and trip ticket system;
·
Implement
the on-site sorting measures of C&D wastes;
·
Observe
the accumulation of general refuse in the Site, and carry out appropriate responses immediately to remove the
refuse;
·
Ensure
proper treatment and disposal of chemical substances;
·
Timely
review of the dredging plans and layout plans of the reclamation area, advise
the quantity of marine sediment, and ensure proper disposal of marine dumping
to the designated area;
·
Monitor the usage of timber in the construction of temporary
works, and encourage subcontractors to minimize the use of timber; and
·
Correct any
identified non-conformance relating to the waste management system.
1.
2.
3.
3.1.
3.2.
3.2.1.
(iii)
Safety
& Environmental (S&E) Manager
Reporting to the DBJV
senior managements, he will
·
Monitor the site waste management system;
·
Timely advise to the senior managements on waste
management matters;
·
Supervise the works of the environmental manager /officer
and his team,
·
Attend site safety and environmental committee
(SSEC) meetings, site safety and environmental management committee (SSEMC)
meetings and independent audits,
·
Review designs of site waste disposal facilities in
method statements in relation to waste management.
(iv)
Environmental
Manager / Officer
The Environmental Manager
/ Officer works full-time on Site
and he is assigned to oversee all waste management matters of the Works. The
duties of the Environmental Officer include the followings:
·
Prepare, implement and update the waste management plan;
·
Advise on measures to be taken in the interest of
waste management;
·
Liaise on all matters relating to waste monitoring
and auditing;
·
Monitoring the
implementation of waste disposal measures and trip ticket system;
·
Establish a record system to register dispatching
and returning of chits;
·
Complete and submit the updated monthly summary
“Waste Flow Table” together with the updated sections of WMP (if any) to the
Supervising Officer’s Representative by not later than the 15th day
of each month,
·
Submit the summary table for using timber in the
construction of Temporary Works together with the updated sections of
Environmental Management Plan (EMP) (if any) to the Officer’s Representative by
not later than the 15th day of each month.
- Observe the
accumulation of general refuse within the Site, and advise
appropriate responses to remove the refuse;
- Ensure
proper treatment, disposal, and record of chemical substances;
- Apply for
marine dumping permit, ensure proper disposal of marine dumping to the
designated area; and
·
Arrange and provide the site specific toolbox talks
about waste management for the staff and workers on the Site.
(v)
Assistant
Environmental Officer
Assistant Environmental Officers
will assist to the Environmental Officer to
implement the TTS on site and ensure the effectiveness of site waste
management. The duties include:
·
Assist the Environmental Officer carrying out his
duties in monitoring of waste disposal,
·
Carry out daily site environmental inspections, observe
the accumulation of waste within the Site, and report to the
Environmental Officer/Site Superintendent/General Foreman;
·
Co-ordinate with General Foreman and
Subcontractors, rectify defects and deficiencies identified during inspections;
·
Advise the Environmental Officer on the up-keeping
of waste management performance and standards of the Site;
·
Monitor the on-site disposal status of C&D
waste / general refuse / marine dumping;
·
Conduct toolbox talks;
·
Supervise and maintain the internal record systems
of chits and daily record summaries; and
·
Regularly retrieve disposal data from websites of
EPD & CEDD.
(vi)
Site
Superintendent / General Foreman / Foreman
They are responsible for the following
environmental duties:
·
Undertake daily operation to implement the WMP;
·
Ensure all waste is sorted, segregated, recycled or
reused when applicable;
·
Collaborate with the Assistant Environmental Officer
in the implementation of TTS;
·
Ensure that each truck carrying C&D materials
leaving the Site bears duly completed, signed/stamped CHIT;
·
Record the CHIT no., the vehicle registration mark
and the departure time of every truck leaving site carrying C&D materials;
·
Ensure each truck driver wash their wheels and
close the mechanical cover before leaving the Site;
·
Supervise and monitor the loading process, ensure
the quality of C&D material loaded onto the truck and make sure no
overloading,
·
Check the C&D material again to ensure the
quality;
·
Sign the chits and daily record summary sheets;
·
For marine
disposal, ensure all dredged / excavated sediment are properly sorted in
different types, and disposed to the designated area allocated by CEDD;
·
Ensure that every
dumping vessels collect only one sediment type, and no mixing of the other
types of excavated sediment; and
·
Conduct environmental toolbox talks to raise waste
disposal awareness amongst workers;
(vii)
Subcontractors
Subcontractors are responsible for the following duties:
- Observe and undertake WMP;
- Carry out agreed site waste
management practices as instructed by the project management and
environmental officer(s);
- Ensure that sufficient resources
are allocated for maintaining the daily cleaning, housekeeping and site
tidiness;
- Report promptly to project
management and environmental officer(s) any chemical or marine disposal
incident, or any non-compliance of waste management and TTS; and
- Participate in and cooperate with
the project management actively to achieve the project waste disposal
activities.
(viii)
General
Employees (Workers)
Workers shall be responsible for the following
duties:
- Follow all
site environmental practices as instructed by the project management;
- Carry out
all waste management measures instructed by their immediate supervisor/
EO/ ES;
- Use
suitable personal protective equipment; and
- Maintaining
site environmental mitigating measures.
(ix)
Environmental
Team
(a)
According to the EM&A Manual prepared by the
ET, the responsibilities of the ET on the waste management and the TTS
implementation are as follows:
·
Conduct regular site environmental inspections to
ensure site practices of waste handling in compliance of legislations and
guidelines;
·
Review the documentation procedures to ensure proper
records being maintained and the procedure in compliance with the WMP.
(b)
The ET may also take the following duties in term
of waste management on site:
·
Liaise with other government departments or
external parties, including IEC, EPD, regarding any environmental issues
arising from the project;
·
Investigate public complaints about waste
management;
·
Advise on suitable mitigation measures in case of
waste management deficiencies identified;
·
Monitor various environmental parameters as
required in the EM&A Manual;
·
Prepare reports, as specified in the EM&A
Manual, in a timely manner and ensure the proper disposal records on site;
·
Ensure the Event/Action Plan as stated in the
EM&A report is implemented; and
·
Provide advice on any waste control or reduction
measures, if necessary.
5.3
Training and Promotion
(i)
Site-specific
induction training cover environmental matters, including waste management
shall be presented to all staff and workers employed for the Contract, whether
in the employment of DBJV or his sub-contractors or in connection with the Contract. The training will be delivered by the Environmental
Officer, Environmental Supervisor
or assigned person, as applicable as per construction programme. The training content will cover subjects such
as environmental management policy, waste management policy, project
environmental organization structure, duties and responsibilities, control
measures (such as air quality, noise impact, water quality, waste management
and etc.), targets, in-house rules and regulations, also with the requirement
of construction noise permit and marine dumping permit.
(ii)
Apart
from the induction training, toolbox talks shall be provided for workers on
general site environmental nuisance abatement and waste
management
in addition to safety and health. Prior
approval will be obtained from the SOR on the frequency and the contents of the
toolbox trainings. If further required by the SOR, trainings organized
by training institutes or organizations as considered appropriate will be
arranged.
(iii)
Method of promoting and maintaining the awareness
on environmental aspects and its control measures and waste management amongst
all persons on Site include:
·
Display of the company’s environmental policy,
non-compliance statistics, posters and signs at prominent locations;
·
Talks and campaigns, and distribution of
safety/environmental bulletins or newsletters drawing attention to the
particular environmental issues; and
·
Procedures for recognition and commending those
site personnel, teams or sub-contractors with good performance on environmental
control measures and waste management.
6.0
WASTE
PRODUCING ACTIVITIES
(i)
C&D
Materials or wastes will be generated from the following site activities,
though not exclusively, during the works:
- Domestic activities on site: -
Domestic and municipal wastes will be generated from the human activities
in the site offices;
%20to%20EPD_files/image017.gif)
Site clearance: - Site
clearance work for establishment of works areas (N6) and site office
(WA18);- Dredging works for seawall
construction: - Dredged material, including
marine mud, will be generated;
- Site formation from marine
reclamation works: - As this is primarily a material
importing and filling process, no material export is envisaged;
- D-wall, shaft excavation and
cut-and-cover tunnel excavation on the reclaimed areas: -
Excavated materials, including marine mud, will be removed and
exported/disposed;
%20to%20EPD_files/image018.gif)
TBM tunneling works: -
Excavated materials, including marine mud, will be removed, treated and
solidified by use of a slurry treatment plant, then exported or internally
used as public fill material;- Broken or abandoned TBM precast
segments: - This work is one and a half to
two years in the future, so it will be discussed later.
(ii)
Sewage generated in the site offices will be discharged
into public sewers, so as to avoid any management issue. Portable chemical toilets will be used for
discrete and remote working areas. Sludge accumulated in the portable toilets
will be regularly removed by a qualified sewage removal company.
7.0
DISPOSAL Programme
7.1
Prescribed
Disposal Facilities
(i)
Clause 12.7.1.1 of the EIA report recommended that the North Lantau or NWNT refuse transfer stations be used for C&D
waste and general refuse disposal, due to the large capacities of 1,200 tonnes per day and 900 tonnes per
day respectively.
(ii)
Clause 12.7.1.1 of the EIA report further elaborated that, as the
project extends across both Lantau and Tuen Mun areas, it would be
preferred to remove the wastes to the closest facilities. For Contract
HY/2012/08, located at Pillar Point in Tuen Mun, the closest facility will be WENT.
(iii)
Referring to Clause 12.7.1.2 and Table 12.7 of the EIA report, Tuen Mun Area 38 Fill Bank has
been pointed out as the closest facility to the works, for disposal of inert
construction materials.
(iv)
DBJV will notify EPD and confirm the disposal locations before the
first shipment of materials to the respective disposal sites.
7.2
Monthly Disposal Programme
(i)
The project
consists of many stages of works, with varying quantities of C&D materials
and wastes generated at any one period. Therefore, quantities will be tracked
on a monthly basis. Forecast will be given with consideration of past trends
and upcoming works program. If the amount of excavated
materials cannot be estimated or forecasted at any one time, the quantity will
be reviewed at the next monthly program.
(ii)
The
anticipated dredging/filling rate of marine sediment will be submitted to SOR
no later than the 7th day of the coming month. All actual dredging /
filling volume would be provided by contractor and submitted to ET and IEC/ENPO
as in the proforma sample Appendix C on monthly basis,
no later than the 7th day of the month after.
7.3
Internal Disposal and Control Measures to
Track Movement of Materials
(i)
In the event
that C&D materials excavated from one site is to be transported to another part
of site of the same Project, internal trip ticket system shall be used to track
and record the C&D material movement, just as if shipping the material to
the public fill sites. The type of material, quantities, time and date of
transport, purposes-of-use and the like shall be scheduled by the construction
managers or his delegate engineer(s). They shall inform the SOR in advance of
the details of translocation of materials to allow the SOR to attend
inspections.
(ii)
Project-internal
trip tickets will be distributed to dump truck drivers, and duly completed and
signed by foremen or construction managers of the exporting and receiving
sites. The monthly quantities of the internal disposal will be recorded in
waste flow tables and be submitted to SOR.
7.4
Alternative Disposal Ground
(i)
If excavated
C&D materials cannot be used internally within the same project, DBJV will endeavours
to identify alternative receptor construction sites or recycling facility other
than public fill facilities. Written agreements between exporting and receptor
sites shall be attained and submitted for approval by the SOR. In support of
the request for approval, the following information will be provided:
·
A detailed
description of the alternative disposal ground, including location, lot number
(where appropriate), location plan and photographs of the proposed alternative
disposal grounds showing the surrounding environment and land use;
·
Where the
alternative disposal ground is a private construction site, a letter from each
of the relevant authorities to comment on suitability of the site under their
respective purview, and a letter from the Authorized Person of the development
to confirm:
Ø The C&D materials for use in the development is
acceptable;
Ø The land/pond filling in the proposed alternative
disposal ground and the use of land so formed by the C&D materials are in
conformity with the statutory town plan/ lease conditions; and
Ø The SOR staff are allowed to enter the alternative
ground to conduct inspections where necessary;
·
Where the
alternative disposal is a private recycling facility, it is on the recyclers’
list for C&D materials recognized by EPD, as well as a letter from the
operator to confirm the SOR’s staff to enter the recycling facility to conduct
inspections where necessary;
·
Where the
alternative disposal ground is a construction site of Government, Hong Kong
Housing Authority or Mass Transit Railway Corporation, a written consent from
the project office of the alternative disposal ground to use the C&D
materials generated from the Site;
·
Where the
alternative disposal ground is a government contract quarry, a written consent
from the Mines Division of Civil Engineering and Development Department to
import the C&D materials generated from the Site;
·
The estimated
quantity and type of C&D materials to be used/processed in the alternative
disposal ground and the approximate delivery programme, together with the name,
post and specimen signature of the competent person to sign disposal ticket; and
·
A system for
transmitting disposal records from the alternative disposal ground to the SOR.
7.5
Disposal Grounds of Marine Sediment
(i)
The amount of
marine sediments excavated from the Works shall be minimised as far as
practicable. In events that dredging/excavation of marine sediment are
unavoidable, the Contractor shall handle/process such marine sediment in
accordance with the procedures given in ETWB TCW No. 34/2002 and the associated
amendment versions.
(ii)
In cases that
off-site disposal of marine sediment in Hong Kong Water is required, DBJV shall
apply for the allocation of a sediment disposal site in the name of Highways
Department of the HKSAR, and marine dumping permits under Dumping at Sea
Ordinance (Cap. 466) for the disposal of marine sediment at the designated
disposal facilities in Hong Kong.
(iii)
DBJV shall apply
to the EPD for all necessary permits and licences. Dispose of the marine
sediment shall be at the designated disposal facilities as directed by the
Director of Environmental Protection and/or the Marine Fill Committee unless
otherwise agreed or ordered in writing by the Supervising Officer’s
Representative.
7.6
Estimated Quantities of C&D Material/
Waste and Dredging Sediment
(i)
The
estimated amount of waste to be generated from the Contract is listed in the
follow table:
|
Forecast
C&D materials to be generated from the Contract
|
Imported
|
Generated
|
Reused in the
contract
|
Estimate
Disposal Quantities
|
Proposed
Disposal Outlet
|
|
Imported
sand (m3)
|
520,000
|
0
|
0
|
0
|
N/A
|
|
Imported sorted public fill (m3)
|
2,500,000
|
0
|
0
|
0
|
N/A
|
|
Imported Rock
(m3)
|
1,000,000
|
0
|
0
|
0
|
N/A
|
|
Site
clearance waste (vegetation, refuse on land) (m3)
|
0
|
1,000
|
0
|
1,000
|
NWNT refuse transfer stations/ West New Territories
Landfill (WENT)
|
|
*Inert
C&D Waste/ Excavated Materials or Soil Generated (Using TBM method) (m3)
|
0
|
409,000
|
44,000
|
300,000
|
Tuen Mun Area 38 Fill Bank
|
|
*Inert
C&D Waste/ Excavated Materials or Soil Generated (Using Cut-and-Cover
method) (m3)
|
0
|
696,000
|
196,000
|
500,000
|
Tuen Mun Area 38 Fill Bank
|
|
General
Waste: Food and packaging waste / office waste (m3)
|
0
|
30,000
|
0
|
30,000
|
NWNT refuse transfer stations/ West New Territories
Landfill (WENT)
|
|
Plastics
& Wood (kg)
|
0
|
Small Amount
|
Small Amount
|
Small Amount
|
NWNT refuse transfer stations/ West New Territories
Landfill (WENT)
|
|
Chemical
Waste (L)
|
0
|
5000
|
0
|
5000
|
To be handled by Registered Contractor on the approved
list
|
*As the design of construction
is not yet confirmed, either Cut-and-cover or TBM method will be used in the
project. The wastes generated will vary
with different method of tunnel construction. Therefore, either one quantity of
inert waste (300,000 m3
for TBM or 500,000 m3 for
cut-and-cover) will be generated during the excavation of tunnel.
(ii)
%20to%20EPD_files/image019.gif)
Section 2.2.1.4 of the EIA Report
considers that, due to technological and time constraints, the seawall construction
at Portions N-A to N-C and the reclamation works at Portion N-C of the Northern
Landfall shall be fully dredged. Section 3.2.5 of the EIA Report considers that
the dredging works at Portions N-A and N-B shall be non-dredged, Refer to Figure
3 of EP-354/2009/A.
%20to%20EPD_files/image020.gif)
(iii)
The
following table shows the allocated quantities of sediment disposal of
different categories (i.e. Category L, Mp
and Mf). The quantities will be revised according to the updated
work progress.
|
Marine Sediment Disposal
Quantities Summary Table (in-situ volumes)
|
|
|
Originally Estimated under
SQR
(m3)
|
MFC Allocation
(m3)
|
Cumulative for Allocated
Disposal Sites
(m3)
|
Disposal Site
|
|
Marine Sediment
Category L
Type 1 Disposal
|
387,328
|
392,000
|
392,000
|
Suitable for capping the exhausted Confined Marine Disposal Facility
at East of Sha Chau (or
South of the Brothers)
|
|
Marine Sediment
Category MP
Type 1 Disposal (Dedicated
Site)
|
155,022
|
149,000
|
292,000
|
Sub-areas to be directed on site within the Mud Pit CMP1 or CMP2 of
the Confined Marine Sediment Disposal Facility to South of the Brothers or
the Mud Pit of the Confined Marine Sediment Disposal Facility at East of Sha Chau.
|
|
Marine Sediment
Category MF
Type 2 Disposal
|
67,968
|
143,000
|
|
Total
|
610,318
|
684,000
|
684,000
|
N.A.
|
(iv)
A
variation of the Environmental Permit was submitted to the DEP on 20 January
2014 (Ref. No. VEP-426/2014). Under this variation, the quantities are
re-estimated by construction elements (refer to the below diagram for area
demarcation).
|
Constriction
Element
|
Initial
Estimated of Quantity
Against
EP-354/2009/A
|
Variation
under VEP Application
(Ref.
VEP-426/2014)
|
|
Seawall
Construction
|
463,000
m3
|
463,000
m3
|
|
Reclamation
Filling in Middle
|
147,318
m3
|
64,870
m3
|
|
TOTAL
|
610,318 m3
|
527,870 m3
|
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(v)
The
following table shows the sediment categories breakdown of the construction
elements.
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7.7
Notification to truck drivers
(i)
DBJV
will notify all truck drivers in written format with the following points
regarding the removal of C&D waste:
·
Each truck
carrying C&D materials leaving the Site for a disposal ground must bear a
duly completed and stamped CHIT, irrespective of the location and nature of the
disposal ground;
·
The C&D
materials must be disposed to the agreed disposal ground;
·
Truck drivers
must bear a valid Dumping Licence that he can apply from the CEDD.
(ii)
The
notification to truck driver is attached in Appendix D. This will be
distributed to all drivers to ensure that all of them are being notified and
understood the legal requirements of dumping operation and in-house waste
management rules.
8.0
Chemical Waste
(i)
The
principal chemical waste arising from this project, with the exception of
contaminated soil, will be spent oil and other lubricants from servicing and
maintenance of the construction plants and marine vessels. These wastes contain chemicals, which may
cause pollution or constitute a danger to the health of workers or pose a risk
of pollution to the environment.
(ii)
The
handling and storage of chemical wastes must comply with the requirements
stated in the Code of Practice on the Packaging, Labeling and Storage of
Chemical Wastes.
(iii)
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Chemical waste containers
(i.e. drums, jerry cans, bottles, cans, etc.) for the storage of chemical
wastes shall:
·
Have
a capacity of less than 450 liters unless approved by EPD;
·
Be
suitable for the substance they are holding and securely closed;
·
Be
resistant to corrosion;
·
Be
maintained in a good condition;
·
Properly
labeled in accordance with the instructions prescribed in Schedule 2 of the
Waste Disposal (Chemical Waste) (General) Regulation.
(iv)
The
storage area for chemical wastes shall:
·
Be
enclosed at 3 sides;
·
Be
used solely for the storage of chemical wastes;
·
Be
clearly and legibly labeled;
·
Have
an impermeable floor and bund;
·
Have
a capacity enough to accommodate 110% of the volume of the largest container or
20% by volume of the chemical wastes stored in that area;
·
Have
adequate ventilation;
·
Be
sheltered from rain (rainwater collected in the bund must be tested or disposed
of as chemical wastes);
·
Be
provided with facilities for separate storage of incompatible materials.
(v)
Arrangements
will be made for regular collection and disposal of chemical wastes. Disposal
of chemical wastes shall –
·
Be
via a licensed waste collector, and
·
Be
disposed in the Chemical Waste Treatment Facility in Tsing
Yi.
(vi)
The
monthly quantities of the chemical waste removed off site will be
recorded in the waste flow table for monthly submission to the SOR.
(vii)
The
proposed location for chemical waste storage is presented in Appendix F and
will be modified subject to site conditions.
(viii)
The
chemical treatment for the marine spillage will be demonstrated in the Marine
Spillage Drill Report.
9.0
General Refuse
(i)
The
presence of a construction site with workers will result in the generation of a
variety of general refuse material requiring disposal. They are:
l General
refuse will be generated largely by food service activities for site workers,
however sufficient rubbish bins would be provided for containment prior to
disposal of such waste.
l Aluminium
cans, glass and plastic bottles are often recovered from the waste stream by
individual collectors if they are segregated or easily accessible, so separate
labelled bins for their deposit will be provided wherever feasible.
l Office
wastes will be reduced through recycling of paper and collection of toner and
cartridges. DBJV will seek out and join a local collection scheme to collect
office waste regularly and this will continue throughout the whole project
period.
l We
will encourage environmental awareness and try to reduce waste by:
a. Reducing the number of photocopies to a
minimum.
b. By copying on both sides of paper for
internal documents and external documents where appropriate.
(ii)
General refuse generated on-site shall
be stored in waste receptacles, enclosed bins or compaction units separate from
construction and chemical wastes.
(iii)
A reputable waste collector will be
employed by the contractor to remove general refuse from the site, separately
from construction and chemical wastes, on daily or every second day basis to
minimise odour, pest and litter impacts.
(iv)
No burning of refuse on site will be
permitted. General Foreman / Environmental Supervisor will inspect and manage
the site condition with respect to the general refuse on-site during the daily
site walk.
10.0 Site Procedures for Trip Tickets System
(i)
A site procedure is presented in flowchart format as
in Appendix E, to ensure that each truck load of C&D materials leaving the
site will bear a duly completed chit, and that Part of the DRS has been filled
in and signed properly before its departure.
The flowchart illustrates site procedures to handle C&D materials
disposal with chits to be implemented in the DBJV site, and they will be
modified to suit the actual site condition, after agreed with the SOR.
(ii)
Where irregularity is observed or where requested
by the SOR under special circumstances, DBJV will submit to the SOR within 5
working days after the recorded date of disposal the supporting evidence such
as duly stamped chits and/or the transaction record slip to confirm proper
completion of the delivery trips in questions, or within 2 working days after
the SOR has requested for such evidence, whichever is later.
11.0
Waste Reduction Measures
11.1
General
(i)
All construction
and demolition (C&D) materials arising from or in connection with the Works
shall be sorted on Site to recover reusable and/or recyclable materials. Unless otherwise stated, all surplus C&D
materials arising from or in connection with the Works shall become the property
of DBJV when it is removed from the Site.
DBJV will promptly remove all sorted materials arising from or in
connection with the Works from the Site to minimize temporary stockpiling on
Site.
11.2
On-site Sorting of C&D Materials
(i)
A system for
on-site sorting of C&D materials would be devised, including the
identification of the source of generation, estimated quantity, arrangement for
on-site sorting and/or collection, temporary storage areas, frequency of
collection by recycling contractors or frequency of removal off Site, etc.
(ii)
The design of
onsite sorting facilities is illustrated in Appendix F. The area is
approximately 7m x 10m which is enough for onsite sorting of waste. The
proposed onsite sorting facilities will be placed far away from the drainage of
surface runoff, to reduce the chance of contamination. It is next to the
location of storage area for C&D materials, in order to minimize the
environmental effect during the transportation of C&D waste (e.g. dust
generation, waterway contamination). The C&D waste will be sorted in inert
and non-inert waste, and differentiate with recyclable material. Different
waste receptacles will be labelled with suitable logos and provided as in the
site layout plan for onsite sorting purpose. The location of on-site sorting
facilities is presented in Appendix F.
(iii)
Sorting the
materials at source into:
·
hard rock and
large broken concrete suitable for reuse on the Site or recycling at a
designated location;
·
metals;
·
paper and
plastics;
·
chemical waste;
and
·
materials suitable for
disposal at public fill reception facilities, sorting facilities and
landfills/outlying islands transfer facilities.
Disposal at the sorting facilities should first be approved by the SOR.
(iv)
Except for those inert C&D materials to be reused on Site, all other
C&D materials shall be removed off the Site as soon as practicable in order
to optimize the use of the on-site storage space. DBJV shall identify and
provide sufficient space for temporary storage of C&D materials to
facilitate collection and/or sorting on the Site;
(v)
Arrangements with potential recycling contractors shall be made to
facilitate that recyclable materials sorted from the Site are collected with
reasonable care;
(vi)
A system shall be established for proper handling and storage of
chemical waste generated from the Site, and arrange for the collection and
disposal of such chemical waste by specialist contractors. The location of
storage of chemical waste is also demonstrated in Appendix F.
11.3
Waste Flow Table (WFT)
(i)
A mechanism to record the quantities of C&D materials generated each
month shall be established, using the monthly summary “Waste Flow Table” as in
Appendix G. The monthly summary WFT
shall be completed by Environmental Officer and submitted to the SOR or his
representative together with the updated sections of EMP (if any) by not later
than 15th day of each month following the month reported on, or if
it is a General Holiday, the day following the General Holiday;
(ii)
The latest estimate of the total amount of C&D materials shall also
be submitted including rock, that are expected to be generated by the Works,
together with a breakdown of the nature of the materials (i.e. inert C&D
materials (public fill), hard rock or concrete, C&D waste, etc.). Such information should be submitted together
with the monthly summary “Waste Flow Table” as required above.
11.4
Control of the Use of Timber
(i)
The use of timber in temporary works construction should be avoided,
reduced or minimized as far as possible.
Where the use of timber for a temporary works construction
process/activity with an estimated quantity exceeding 300m3, a
method statement should be submitted to the SOR for agreement prior to
commencement of the relevant temporary works.
The method statement should include the justification for and the
measures taken to minimize the use of timber in the said temporary works;
(ii)
In addition, a summary table should be provided containing the
description, justification and the estimated quantity for every work
process/activity requiring the use of timber for temporary works construction
irrespective of the quantity of timber used.
It should be updated and submitted to the SOR or his representative
together with the monthly summary WFT for monitoring and review by not later
than 15th day of each month, or if it is a General Holiday, the day
following the General Holiday. DBJV
shall draw the attention of the SOR or his representative to those work
processes/activities for which the estimated quantities have been revised.
11.5
Recyclable Materials
(i)
Control
measures would be devised to ensure that the recyclable materials are delivered
to a proper recycling outlet for processing, and to avoid such materials being
considered as C&D materials for the purposes of the Contract. Trip ticket system is not applicable to recyclable materials. However,
the invoice, receipt or disposal records will form parts of the comprehensive
register as described in the previous section to ensure integrity of disposal
records. The monthly quantities of the recyclable materials removed off site
will be recorded in the waste flow table for monthly submission to the SOR.
(ii)
Specific measures will be implemented to reduce the generation of waste
materials, and thus minimize the amount of waste disposal to landfills. The
measures will include:
·
sort all excavated materials and recover the inert portion of C&D
materials, such as hard rock, soil and broken concrete, for reuse on the Site
or, if cannot be used on the Site, disposal to designated outlets for reuse;
·
recover all metallic waste for recycling;
·
recover all cardboard and paper packaging, and properly stockpile them
in dry and covered condition to prevent cross contamination; and
·
sort all demolition debris to recover reinforcement bars, mechanical and
electrical fittings, hardware and all other fittings/ materials that have established
recycling outlets.
(iii)
Materials packaging (i.e. paper and cardboard) will be recovered if
possible, properly stockpiled in dry and covered environment to prevent cross
contamination by other C&D materials. Attention will also be paid to avoid
cross contaminate during the course of paper collection for recycling.
Arrangements will be made with recycling contractors to ensure that the
recyclable materials sorted from the Site are handled with reasonable care. In
addition, DBJV has made agreements with certain suppliers for the collection of
packaging wastes to further enhance the management of these materials on site.
11.6
Mitigation Measures in EIA
(i)
The Section 12.6 of the EIA Report gives recommendations on mitigation
measures of waste management. The recommendations were extracted to form an
implementation schedule particularly for waste management during construction
phase and the schedule is shown in Appendix H.
12.0
Waste monitoring and audit
(i)
The aims and objectives of the waste management audit
program are:
·
To ensure that waste generated by the works is handled,
stored, collected, transported and disposed of in accordance with the
applicable environmental guidelines and regulations;
·
To ensure that the handling, storage, collection and
disposal of waste arising from the demolition works complies with the relevant
requirements under the Waste Disposal Ordinance and its regulations, and also
this WMP;
·
To encourage the reuse and recycling of materials.
(ii)
For monitoring the Contractor’s waste management system,
ET would audit the waste management practices during the weekly environmental
site inspection. This evaluates the overall performance of the implementation
of the WMP and ensures the appropriate control measures are properly
implemented. The results of the waste management audits will be
reported in the monthly EM & A reports.
(iii)
In the event that any Notice of
Non-compliance is received with respect to any waste management issues, the
initial corrective action should be proposed to SOR. This shall be in accordance with the
requirements of the relevant Event Action
Plan
for non-compliance and
complaints as shown in the following table:
Table 12.1 Event
Action Plan for Non-compliance
|
Step
|
Day
|
Action
|
DBJV/ET
|
SOR
|
IEC/
ENPO
|
|
1
|
1
|
A
non-compliance (NC) record will be created within one (1) working day after
making an observation during the site audit.
The ET will send a Notice of Non-Compliance to DBJV, SOR and IEC/ENPO.
The NC will include details of the observations, the time and location of the
observations and the reasons for the non-compliance.
|
l
|
-
|
-
|
|
2
|
2
|
DBJV
will propose suitable corrective actions to mitigate the non-compliance
observed within one (1) working day of receipt of the NC from the ET.
|
l
|
-
|
-
|
|
3
|
3
|
The
SO and IEC/ENPO will review DBJV’s proposed corrective actions and make
additional recommendations as necessary.
|
-
|
l
|
l
|
|
4
|
-
|
DBJV
will implement the proposed corrective actions once they have been agreed by
all parties.
|
l
|
-
|
-
|
|
5
|
-
|
Check
the implementation of the corrective actions at the next site audit. Close the NC record in the recording system
if the implementation of the corrective actions is satisfactory and reported
to SOR.
|
l
|
l
|
l
|
|
6
|
-
|
Propose
preventive actions within 3 working days after the closure of the NC.
|
l
|
-
|
-
|
Note: “l”
denotes action party comments on the NC where applicable
Table
12.2 Event Action Plan for Complaint
|
Step
|
Day
|
Action
|
DBJV/ET
|
SOR
|
IEC/
ENPO
|
|
1
|
1
|
The ET will investigate validity of complaint, and assess whether the
complaint is due to an onsite activity. If the complaint is valid and due to
site activity, the ET will log details of the complaint into a Complaint
Record Form (CRF).
|
l
|
-
|
-
|
|
2
|
2
|
DBJV
will assess the CR and propose suitable mitigation measures.
|
l
|
-
|
-
|
|
3
|
3
|
The
ER and IEC/ENPO will review the mitigation measures and agree or propose
further mitigation measures if required.
|
-
|
l
|
l
|
|
4
|
-
|
DBJV
will implement the proposed mitigation measures once they have been agreed by
all parties.
|
l
|
-
|
-
|
|
5
|
-
|
The ETL will check the implementation of the mitigation measures at
the next site audit. ETL will close
the CRF record in the recording system if the implementation of the mitigation
measure is satisfactory and reported to SOR.
|
l
|
l
|
l
|
|
6
|
-
|
Propose preventive actions within three (3) working days after the
closure of the CRF.
|
l
|
-
|
-
|
Note: “l”
denotes action party comments on the NC where applicable
13.0
Conclusion
(i)
Construction
& Demolition (C&D) waste, chemical waste, general refuse and marine
sediment arising from construction activities shall be managed in accordance
with the proposed controls and statutory requirements. Mitigation measure
should be applied when the environmental impact occurs. Good site practice
should be maintained.
END OF CONTENT
Appendix A– Organisation
Chart for Waste Management on Site
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