Construction Phase
Dredged Material
·
Theme Park Resort Hotel at Area 1A;
·
Theme Park Gateway Hotel at Area 3A;
·
Tourist and Convention Village at Area 3C;
·
Theme Park at Area 1A;
·
Theme Park RD&E at Area 1A;
·
Theme Park (Phase III) Extension at Area 1C;
·
Water Recreation Centre at Area 1D;
·
Eco Park at Area 2A;
·
Theme Park Gateway Retail and Office at Area 3A;
·
Tourist and Convention Village at Area 3C;
·
Tourist and Convention Village Retail at Area
3C;
·
Technodrome at Area 3D; and
·
Recreational Tourism Use at Area 5A;
Table
6.6a - Estimated Quantities of Waste to be generated at the NLDFS Developments
before and after Tourism Related Developments Recover and Recycling Programme
|
Category |
Planning Area No. |
Estimated Waste Generation Rate (tpd) |
|||
|
|
|
With No Waste Reduction/Recycling |
Market Driven Recycling |
Waste Recovery on Recyclable Waste at
Tourism Related Developments |
Further Recycling if Composting for
Food Waste Available |
|
Housing
Developments |
|
|
|
|
|
|
Theme Park Gateway |
3A |
1.27 |
-- |
-- |
-- |
|
R2 Residential |
4A |
6.53 |
-- |
-- |
-- |
|
R2 Residential |
4B |
9.33 |
-- |
-- |
-- |
|
Hotels |
|
|
|
|
|
|
Resorts Hotel (a) |
1A |
61.64
|
14.18-16.03 |
6.16 |
6.16 |
|
Theme Park Gateway
(a) |
3A |
15.00
|
3.45-3.90 |
1.50 |
1.50 |
|
Tourist & Convention Village (a) |
3C |
18.08 |
4.16-4.70 |
1.81 |
1.81 |
|
Tourist Facilities |
|
|
|
|
|
|
Theme Park (a) |
1A |
45.48 |
10.46-11.82 |
4.55 |
4.55 |
|
Theme Park RD & E (a) |
|
67.72 |
15.58-17.61 |
6.77 |
6.77 |
|
Theme Park (Phase III) Extension Area or Other
Tourism Uses (a) |
1C |
61.51 |
14.15-15.99 |
6.15 |
6.15 |
|
Water Recreation
Centre |
1D |
5.98 |
1.38-1.55 |
0.60 |
0.60 |
|
Eco Park |
2A |
1 |
0.23-0.26 |
0.10 |
0.10 |
|
Theme Park Gateway Retail and Office (a) |
3A |
4.61 |
1.06-1.20 |
0.46 |
0.46 |
|
Tourist and Convention Village (a) |
3C |
6.82 |
1.57-1.77 |
0.68 |
0.68 |
|
Tourist and Convention Village Retail (a) |
3C |
1.66 |
0.38-0.43 |
0.17 |
0.17 |
|
GIC (including car park) |
1B |
0.5 |
-- |
-- |
-- |
|
Cross Boundary Ferry Terminal |
3B |
0.98 |
-- |
-- |
-- |
|
Technodrome (a) |
3D |
8.43 |
1.94-2.19 |
0.84 |
0.84 |
|
Water Front Promenade |
3E |
0.14 |
-- |
-- |
-- |
|
Service Area |
3F |
0.5 |
-- |
-- |
-- |
|
Bus Depot and Parking |
3G |
0.5 |
-- |
-- |
-- |
|
Education Facilities |
4C |
0.17 |
-- |
-- |
-- |
|
Open Space |
4D |
1 |
-- |
-- |
-- |
|
SDU Base |
4E |
0.16 |
-- |
-- |
-- |
|
Recreational Tourism Use (a) |
5A |
16.12 |
3.71-4.19 |
1.61 |
1.61 |
|
Total |
|
335.13 |
72.23-81.65 |
31.41 |
31.41 |
|
Note: (a)
According to the assessment for Theme
Park Phase I and II, the market driven recycling industry can recycle 23-26 %
of waste to be generated in the tourism related developments. It is recommended that a additional further
target of an additional 10% for recyclable recovery programme at these
developments and potentially, an extra 10% for food waste source separation
(assuming that a composting facility for food waste planned in the Waste Reduction Framework Plan is
available) programme be adopted in the Waste Management Plan of the tourism
related developments. |
|||||
Table 6.6b - Summary of Waste Management
Impacts at NLDFS Developments
|
Waste Type |
General Evaluation |
|
Construction
Phase |
|
|
Dredged/Excavated
Sediment |
Due
to the detection limit of PAHs and PCBs being higher than LCEL, further
testing of PAHs and PCBs for all the sediment to be dredged will be required
to confirm proper classification. In
addition, the testing of TBT in interstitial water should be used instead, in
accordance to the new excavated/dredged sediment guidelines. At Penny’s Bay
reclamation and Yam O reclamation, approximately 0.11 M m3 is
seriously contaminated (Class C). The Class C sediment should be disposed of
at the East Sha Chau Contaminated Mud Pits. No adverse environmental impact
is anticipated if the Class C sediment is properly transported to and
disposed. FMC has allocated 30 M m3
of uncontaminated and disposal capacity to the Penny’s Bay Project (East Nine
Pin, East Tung Lung and North Lantau).
FMC will further consider the sediment disposal capacity for the Yam O
Reclamation in the future. For
Northshore reclamation, approximately 60,000 m3 of dredged
sediment would required confined marine disposal. However, this volume may increase as additional biological
screening is required to determine the disposal route for sediment exceeding
LCEL. At
Siu Ho Wan reclamation, the sediment to be dredged are likely to be
uncontaminated, although checking on exceedance on LCEL in terms of PAHs,
PCBs and TBT (in interstitial water) will be required. The
sediment at SDU reclamation and Road P1 reclamation are not likely to be
seriously contaminated. However
biological screening should be carried out to determine whether confined marine
disposal is required and further testing on PAHs, PCB and TBT (in
interstitial water) are needed. Biological
screening is required at TCT East reclamation to determine the disposal route
of dredged sediment although it is estimated that approximately 70,000 m3
will required confined marine disposal.
Further testing on PAHs, PCBs and TBT (in interstitial water) will
also required to check if there is any exceedance in LCEL. When the volume of
sediment requiring confined/open marine disposal is confirmed, during
detailed design stage, the FMC should be informed in order to allocate
suitable disposal sites(s). |
|
Use
of Public fill for the reclamation |
Penny’s
Bay Reclamation (Stages I and II) requires about 82.9 M m3 of
filling material, and the use of 10.5M m3 of public fills has been
planned which is the maximum uptake due to various constraints. And the Yam O Reclamation will use about
1.7 M m3 of filling material, of which 1.0 M m3 is
public fill. The total amount of
fill requirements for other reclamations within the Project Area is 33 M m3. It is estimated approximately 25.8 M m3
(about 78%) of public fill will be utilised at those reclamations. Also, an extra 13.1 M m3 of
public fill will be used as surcharge.
The use of public fill will not only alleviate the demand for virgin
fill material but also reduce the pressure of disposing inert construction
and demolition material at the strategic landfills. |
|
Excavated
Material |
The
construction of the building foundation for the NLDFS infrastructures (including
at Penny’s Bay Reclamation Stages I and II, Theme Park and NLDFS developments
as well as other roads and drains) will generate some excavated
materials. The quality of the
excavated material will be the same as the fill materials used for the
reclamation ( ie either marine sand fill or clean public fill). The exact amount of surplus excavated
material to be generated from the foundation works cannot be determined until
detailed design information is available.
However, it is anticipated that the excavated material to be generated
will be of a small percentage (less than 5%) to the fill requirements (117.6
M m3) for all the reclamations and can all be reused, either
on-site or at adjacent reclamation, as fill materials About 7,800 m3
of excavated material will be generated from the excavation works for Road
P2. The excavated materials will be
reused on-site for filling at Cheoy Lee Shipyard area and no surplus
excavated material will be generated. Approximately
68,500 m3 of excavated materials from cut and cover, drill and
blast tunnel works for the PBRL will be generated between January 2003 and
June 2004 (approximately 18 months) and will comprise mainly clean rock and
soil. The Yam O station will be constructed
on pad foundation, and hence no piling will be required. The Penny's Bay Rail Station will be
seated on steel H-piles or pad foundation.
A total of
approximately 3.08 M m3 of excavated is expected to be generated
from the construction of the CKWLR, primary as a result of excavation at
slopes of Pa Tau Kwu. Small amounts of excavated material will also expected
from the foundation works carried out at CKWLR Phases I and II. The daily generation rate is 3,000 m3
d-1. Excavated material
generated at Yam O to Penny’s Bay Interchange could be reused on-site for
filling at the Cheoy Lee Shipyard area.
Whereas excavated material generated at Pa Tau Kwu and CKWLR Phases I
and II could be re-used within other NLDFS reclamation such as Penny’s Bay
Reclamation Stage II or Theme Park (Phase III) Extension reclamation. No surplus excavated material will be
generated. As all the
reclamations require a large quantity of fill material and the Project will
have an overall deficit of fill material.
It is anticipated that all the excavated soil and rock generated from
the Project will be re-used for the reclamation works. Since public filling areas only accept
public fill with certain size (< 200 mm diameter). Some of the excavated material may require
to be broken prior re-use on site. No
surplus of excavated material will be generated. |
|
C&D
Waste |
Small amount of
demolition waste will be generated at Cheoy Lee Shipyard and Ngong Shuen Au
for the construction of CKWLR.
However, the small is likely to be small. However, there are potential environmental impacts associated
with the decommissioning and demolition of the shipyard is addressed in Section 12 and will be evaluated under
a separate Schedule 2 EIA to be commissioned by the CED. During the
infrastructure construction period, the highest cumulative daily C&D
waste arisings is during 2004 and will be generated from Theme Park Phase I
Opening Day, Theme Park Phase II Buildout, GIC at area 1B, Water Recreation
Centre, SDU Base and PBRL during Q2 2004 (the average and peak C&D waste
generation rate is 32 m3 d-1 and 49 m3 d-1,
respectively, whereas for public fill generation rate is 131 m3 d-1
and 198 m3 d-1). |
|
Chemical
Waste |
A
small volume of chemical waste, such as used lubricating oils from plant
maintenance materials, will be produced.
Storage, handling, transport and disposal of chemical waste should be
in accordance with the Code of Practice
on the Packaging, Handling and Storage of Chemical Wastes. Provided that
this occurs, and chemical wastes are disposed of at a licensed facility, the
contractor should be in compliance with all relevant regulations and there
will be little environmental impact. |
|
General
Refuse |
The
maximum daily number of workers on site is 6,000. Based on a waste generation rate of about 0.65 kg per person,
it is estimated that the amount of general refuse to be generated will be in
the order of 3.9 tpd. |
|
Operation Phase |
|
|
Municipal
Solid Waste |
Based
on the current development options, the amount of waste to be generated will
be 335.13 tpd (without any waste reduction/recycling) when the Northshore
Lantau Development is in full operation. Significant amounts of waste will be
generated from the tourism related developments (314.05 tpd). This estimation should be refined
during detailed design stage. The
disposal of waste from NLDFS development to strategic landfill will via
NLTS. Since the information on NLTS
throughput forecast only up to 2016, although the NLDFS developments will be
fully operate later than 2016, comparison is made to see if the NLTS can
receive the waste arisings from NLDFS development. The anticipated quantity of waste arising from the NLDFS
developments would constitute an significant increase of the daily throughput
(at least 38 %, see Section 6.5) in
the waste arising from the catchment area of the NLTS which has a design
capacity of 1,200 tpd. According to the current waste arisings
prediction, the NLTS will not be able to handle the waste generated within
its catchment area (a deficiency of approximately 15 tpd). With proper implementation of the waste
reduction and waste management plan,
no insurmountable impacts associated with the handling and disposal of waste
will be expected. The
floating refuse from windblown refuse and litter may vary from small debris
to large floating objects such as plastic bags. The floating refuse is likely to be chemically inert, however,
if not collected properly, these floating refuse may drift along the coastal
area of the Theme Park and associated developments and the artificial lake of
the Water Recreation Centre, which may create aesthetic or odour impact, or
cause damage to marine craft.
Provided that mitigation measures such as the use of surface boom to
contain the floating refuse, are properly implemented, no insurmountable
environmental impacts with regards to floating debris will be anticipated. |
|
Recycling |
According
to the assessment carried out for the Theme Park Phases I and II ([12]),the
market driven recycling industry can recycle 23-26 % of waste to be generated
in the tourism related developments.
It is recommended that a additional further target of an additional
10% for recyclable recovery programme at these developments and potentially,
an extra 10% for food waste source separation (assuming that a composting
facility for food waste planned in the Waste
Reduction Framework Plan is available) programme be adopted in the Waste
Management Plan of the tourism related developments. |
|
Disposal |
According to Table 6.6a and based on the waste
arisings from the NLDFS developments and associated facilities and market
driven recycling rate of 23-26 % for tourism related developments, the daily
waste arisings after market driven recycling in full operation is at least
253.48 to 262.9 tpd. The tourism
related development recommended recyclable recovery programme can further
reduce waste by an additional 10 %, which is 31.41 tpd. In addition, if food waste composting facility is available in HK SAR, an extra
10 % of waste (i.e. 31.41 tpd) to be generated from the tourism related
developments can be reduced. The anticipated
waste throughout of NLTS are 370, 770, and 880 tpd for the years 2006, 2011
and 2016, respectively. It indicates
that there will be sufficient spare capacity at the NLTS to handle the waste
arising from the NLDFS developments at least to year 2016. |
|
Chemical
Waste |
The operation of the
Theme Park at Penny’s Bay will use a variety of chemicals. Some of the used chemicals have to be
disposed of. The operation of the
Theme Park at Penny’s Bay will be very similar to that of Disneyland. In addition, the remains of fireworks from
the fireworks shows in the Theme Park may contain heavy metal in low
concentrations (in a scale of ng kg-1),
which is also classified as chemical waste under Schedule 1 of the Waste
Disposal (Chemical Waste) (General) Regulation. The HKITP will
register as a chemical waste producer under the Chemical Waste Control Scheme.
It will make arrangements with the Chemical Waste Treatment Centre at
Tsing Yi or other vendors for the collection, recycling and disposal of the
chemical waste generated from the Theme Park. Similar schemes have been adopted by other Disney Theme Parks and it managed to recycle about 90%
(by weight, 83% is recycled and 8% is combusted as fuel) of the chemical waste
generated. The HKITP will target
to recycle as much chemical waste as possible in order to minimise the need
for treatment and disposal. With
respect to the types and quantities of chemical wastes that may be generated
from the Theme Park, it is considered that the Chemical Waste Treatment
Centre will be able to treat the chemical waste arising from the Theme Park. Chemical waste will
be stored, handled, transported and disposed of in accordance with the Waste Disposal (Chemical Waste) (General)
Regulation and the Code of Practice
on Packaging, Labelling and Storage of Chemical Wastes. They should be collected and transported
to the CWTC or other licensed facility by a licensed waste haulier. Provided that appropriate handling,
storage and disposal procedures are followed, no unacceptable impacts
associated with the management of chemical waste during the operational phase
of the PBRL are anticipated. |
|
Sewage
Sludge |
Based on sludge
generation rate of 18,702 tds a-1 in 2016, approximately 40 tds
per day of sludge will be generated, which is equivalent to approximately 170
m3 of sludge. 10 m3
skips (as currently employed in Sha Tin STW) could be used for transportation
of sludge to the disposal facility. A
maximum of 17 truck loads will be required.
It is therefore considered that the traffic impacts associated with
off-site sludge disposal will be minimal. Should the proposed
centralised Sludge and Difficult Wastes Incineration Facility (SDIF) be
located near the WENT landfill, it will be more cost effective and
environmentally preferred to transport
the sludge in modified 20ft ISO containers (similar to the one
currently used at the Stonecutters’ Island STW) via the NLTS to the WENT
Landfill Reception Area and then to the SDIF. |
Introduction
·
minimising exposure to any contaminated material
by the wearing of protective gear such as gloves, providing adequate hygiene
and washing facilities, and preventing eating during dredging/excavation;
·
any contaminated sediment dredged should not be
allowed to stockpile on the site and should be immediately removed from site
once dredged;
·
all vessels for marine transportation of dredged
sediment should be fitted with tight fitting seals to their bottom openings to
prevent leakage of materials; and
·
loading of barges and hoppers should be
controlled to prevent splashing of dredged material to the surrounding water,
and barges or hoppers should under no circumstances to be filled to a level
which will cause other overflowing of materials or polluted water during
loading or transportation.
·
transport to other reclamation sites at North
Lantau and Penny's Bay areas; and
·
transport to public filling areas.
·
avoidance and minimisation, that is, not
generating waste through changing or improving practices and design;
·
reuse of materials, thus avoiding disposal
(generally with only limited reprocessing);
·
recovery and recycling, thus avoiding disposal
(although reprocessing may be required); and
·
treatment and disposal, according to relevant
law, guidelines and good practice.
·
be suitable for the substance they are holding,
resistant to corrosion, maintained in a good condition, and securely closed;
·
have a capacity of less than 450 L unless the
specifications have been approved by the EPD; and
·
display a label in English and Chinese in
accordance with instructions prescribed in Schedule 2 of the Regulations.
·
by clearly labelled and used solely for the
storage of chemical waste;
·
be enclosed on at least 3 sides;
·
have an impermeable floor and bunding, of
capacity to accommodate 110% of the volume of the largest container or 20% by
volume of the chemical waste stored in that area, whichever is the greatest;
·
have adequate ventilation;
·
be covered to prevent rainfall entering (water
collected within the bund must be tested and disposed as chemical waste if
necessary); and
·
be arranged so that incompatible materials are
adequately separated.
·
be via a
licensed waste collector; and
·
be to a
facility licensed to receive chemical waste, such as the Chemical Waste
Treatment Facility which also offers a chemical waste collection service and
can supply the necessary storage containers; or
·
be to a
re-user of the waste, under approval from the EPD.
·
be suitable for the substance they are holding,
resistant to corrosion, maintained in a good condition, and securely closed;
·
have a capacity of less than 450 L unless the
specifications have been approved by the EPD; and
·
display a label in English and Chinese in
accordance with instructions prescribed in Schedule 2 of the Regulations.
·
by clearly labelled and used solely for the
storage of chemical waste;
·
be enclosed on at least 3 sides;
·
have an impermeable floor and bunding, of
capacity to accommodate 110% of the volume of the largest container or 20% by
volume of the chemical waste stored in that area, whichever is the greatest;
·
have adequate ventilation;
·
be covered to prevent rainfall entering (water
collected within the bund must be tested and disposed as chemical waste if
necessary); and
·
be arranged so that incompatible materials are
adequately separated.
·
be via a licensed waste collector; and
·
be to a facility licensed to receive chemical
waste, such as the Chemical Waste Treatment Facility which also offers a
chemical waste collection service and can supply the necessary storage
containers; or
·
be to a re-user of the waste, under approval
from the EPD.
·
dredging
and disposal of the marine sediment at the platforms east and south of Tsing
Chau Tsai (TCT) up to R10-HKLL Toll Plaza (i.e. CKWLR Phase I and Phase II
reclamations);
·
excavation
works;
·
construction
of seawalls and reclamation;
·
construction
of foundations and superstructures; and
·
construction
of the infrastructure.
·
dredged/excavated
marine sediment;
·
excavated
material;
·
construction
and demolition waste;
·
chemical
waste; and
·
general
refuse.
Table 6.8a - Dredging and Filling Requirements
for CKWLR Reclamation
|
Activities |
Area (ha) |
Volume in million m3 |
Construction Period |
|
CKWLR
Phase I |
17 |
0.4 |
Q1
2002 to Q3 2003 |
|
CKWLR
Phase II |
25 |
3.8 |
Q2
2012 to Q3 2014 |
|
Excavation
for the construction of CKWLR section foundation (Yam O to Penny’s Bay
Interchanges) |
-- |
minimal |
Q2
2001 to Q3 2003 |
|
Total
Volume of Sediment to be Dredged |
42 |
4.2 |
|
|
Filling/Surcharge of
CKWKR Phase I reclamation: 1. Sand
Fill (m3) 2. Public
Fill/Public Fill Surcharge (m3) |
|
0.6 1.8/ 1.0 |
Q2
2002 to Q1 2004 |
|
Filling/Surcharge of
CKWLR Phase II reclamation 1.Sand
Fill (m3) 2.Public
Fill/Public Fill Surcharge (m3) |
|
0.7 3.0/ 1.5 |
Q4
2012 to Q2 2014 |
|
Total
Fill Requirement |
|
8.6 |
|
·
scrap batteries or spent acid/alkali from their
maintenance;
·
used engine oils, hydraulic fluids and waste
fuel;
·
spent mineral oils/cleaning fluids from
mechanical machinery; and
·
spend solvents/solutions, some of which may be
halogenated, from equipment cleaning activities.
·
toxic effects to workers;
·
adverse effects on air, water and land from
spills;
·
fire hazards; and
·
disruption to sewage treatment works due to
damage to the sewage biological treatment systems if waste is allow to enter
the sewage system.
Dredged Material
Table 6.9a - Summary of Waste Management
Impacts for CKWLR
|
Waste Type |
General Evaluation |
|
Construction
Phase |
|
|
Dredged/Excavated
Sediment |
Dredging of a large
quantity of sediment within a short period of time will have the potential to
cause adverse water quality impact if not properly managed. Section
5 has discussed the mitigation measures necessary to avoid adverse water
quality impacts during the dredging works. Although the quality of cannot be
determined at this stage, based on the sediment quality at Fa Peng and
Penny’s Bay Reclamation Stage II, out of the 4.2 M m3 of sediment
to be dredged for CKWLR, high contamination in As and Cu is likely to be
found at seabed level, and, therefore, biological tests will be required to
determine the final disposal route. For the sediment to
be dredged for the Yam O to Penny’s Bay Interchange, which is located at the
vicinity of the Cheoy Lee Shipyard, although the volume is minimal (1,300
m3), due to its seriously contaminated nature (Class C), disposal at East Sha
Chau Contaminated Mud Pit is required. |
|
Use
of Public fill for the reclamation |
The CKWLR Phases I
and II reclamations will require 8.7 M m3 of fill/surcharge
material between Q2 2002 to Q1 2004 and Q4 2026 to Q2 2028 (45 months). Public fill will be used as fill material
and also surcharge material. The
volume of public fill to be used is 7.4 M m3, which is approximately
85% of the total filling/surcharge material required. The use of public
fill as filling material may give rise as floating debris during
reclamation. Part of the all the
reclamations will be designated as a public filling area. Public fill comprising earth, building
debris and broken concrete may contain a small amount of floatable materials
such as timber, plastic and paper. If
not properly controlled, it may give rise to floating refuse. |
|
Excavated
Material |
A total of
approximately 3.08 M m3 of excavated is expected to be generated
from the construction of the CKWLR, primary as a result of excavation at
slopes of Pa Tau Kwu. This figure
include the 10,200 m3 of excavated material to be generated from
slope excavation for the Yam O to Penny’s Bay Interchange as well as during
the excavation at Yam O, Pa Tau Kwu.
Small amounts of excavated material will also expected from the
foundation works carried out at CKWLR Phases I and II. The daily generation rate is 3,000 m3
d-1. The excavated materials
generated at Yam O to Penny’s Bay Interchange and Pa Tau Kwu will consist of
clean rock and soil. Whereas the
excavated material generated at CKWLR Phases I and II reclamations will be
the same as fill materials used for the reclamation ( ie either marine sand
fill or inert public fill). Excavated material
generated at Yam O to Penny’s Bay Interchange could be reused on-site for
filling at the Cheoy Lee Shipyard area ([16]). Whereas excavated material generated at Pa
Tau Kwu and CKWLR Phases I and II could be re-used within other NLDFS
reclamation such as Penny’s Bay Reclamation Stage II or Theme Park (Phase
III) Extension reclamation. No
surplus excavated material will be generated. As the Penny’s Bay
Stage II and Theme Park (Phase III) Extension reclamations require a large
quantity of fill material and the Project will have an overall deficit of
fill material. It is anticipated that
all the excavated soil and rock generated from the Project will be re-used
for the reclamation works. Since
public filling areas only accept public fill with certain size (< 200 mm
diameter). Some of the excavated
material may require to be broken prior re-use on site. No surplus of excavated material will be
generated. |
|
C&D
Waste |
Although
no details on the GFA is available, the structures to be demolished at Ngong
Shuen Au and Cheoy Lee Shipyard are considered is likely to be small and
simple and the volume of demolition material to be generated is likely to be
small. The potential environmental
impacts associated with the decommissioning and demolition of the shipyard is
addressed in Section 12 and will be
evaluated under a separate Schedule 2 EIA to be commissioned by the CED. With respect to the
demolition works at Ngong Shuen Au and Wan Tuk Village, the volume demolition
material to be generated is likely to be minimal and consist of a mixture of
inert (ie concrete, tiles, bricks, etc. which are classified as public fill)
and putrescible (paper, plastic, wood, etc. which are classified as C&D
waste) materials. The public fill
should be reused on site, as far as practicable. If on-site use is not practicable, the public fill should be
delivered to other reclamation sites or to public filling areas available at
that time. The disposal of inert
C&D material at public filling areas or other reclamation sites is
unlikely to raise any long term concerns because of its inert nature. Due to small volume of arisings, the
disposal of C&D waste at strategic landfills will not cause any
unacceptable environmental impacts. It is not
anticipated that there will be any potential hazard associated with handling
and disposal of C&D material if general construction safety procedures
are properly implemented. |
|
Chemical
Waste |
A
small volume of chemical waste, such as used lubricating oils from plant
maintenance materials, will be produced.
Storage, handling, transport and disposal of chemical waste should be
in accordance with the Code of Practice
on the Packaging, Handling and Storage of Chemical Wastes. Provided that
this occurs, and chemical wastes are disposed of at a licensed facility, the
contractor should be in compliance with all relevant regulations and there
will be little environmental impact. |
|
General
Refuse |
The
maximum daily number of workers on site is 350. Based on a waste generation rate of about 0.65 kg per person,
it is estimated that the amount of general refuse to be generated will be in
the order of 227.5 kg d-1. |
Introduction
·
minimising exposure to any contaminated material
by the wearing of protective gear such as gloves, providing adequate hygiene
and washing facilities, and preventing eating during dredging/excavation;
·
any contaminated sediment dredged should not be
allowed to stockpile on the site and should be immediately removed from site
once dredged;
·
all vessels for marine transportation of dredged
sediment should be fitted with tight fitting seals to their bottom openings to
prevent leakage of materials; and
·
loading of barges and hoppers should be
controlled to prevent splashing of dredged material to the surrounding water,
and barges or hoppers should under no circumstances to be filled to a level
which will cause other overflowing of materials or polluted water during
loading or transportation.
·
transport to other reclamation sites at North
Lantau and Penny's Bay areas; and
·
transport to public filling areas.
·
avoidance and minimisation, that is, not
generating waste through changing or improving practices and design;
·
reuse of materials, thus avoiding disposal
(generally with only limited reprocessing);
·
recovery and recycling, thus avoiding disposal
(although reprocessing may be required); and
·
treatment and disposal, according to relevant
law, guidelines and good practice
·
be suitable
for the substance they are holding, resistant to corrosion, maintained in a
good condition, and securely closed;
·
have a
capacity of less than 450 L unless the specifications have been approved by the
EPD; and
·
display a
label in English and Chinese in accordance with instructions prescribed in
Schedule 2 of the Regulations.
·
by clearly
labelled and used solely for the storage of chemical waste;
·
be enclosed
on at least 3 sides;
·
have an
impermeable floor and bunding, of capacity to accommodate 110% of the volume of
the largest container or 20% by volume of the chemical waste stored in that
area, whichever is the greatest;
·
have
adequate ventilation;
·
be covered
to prevent rainfall entering (water collected within the bund must be tested
and disposed as chemical waste if necessary); and
·
be arranged
so that incompatible materials are adequately separated.
·
be via a
licensed waste collector; and
·
be to a
facility licensed to receive chemical waste, such as the Chemical Waste
Treatment Facility which also offers a chemical waste collection service and
can supply the necessary storage containers; or
·
be to a
re-user of the waste, under approval from the EPD.