THE PROPOSED JOINT USER COMPLEX AND
WHOLESALE FISH MARKET AT
AREA 44 TUEN MUN
EIA Executive Summary
TABLE OF CONTENT 2
1.2 A Joint User Complex and Wholesales Fish Market (WFM Complex) at Area 44 in Tuen Mun is proposed to be built by the Architectural Services Department of the Hong Kong SAR. The location of the proposed WFM Complex and its surrounding environment are illustrated in Figures 1a & 1b. The WFM Complex is to provide a permanent site for the relocation of the existing temporary wholesale fish market at Tuen Mun Area 27 and to accommodate community facilities such as a community hall for public use. Figure 2 shows the location of the existing temporary Castle Peak Fish Market (CPFM) and its surrounding environment.
1.3 The proposed WFM Complex is a designated project under Schedule 2 of the Environmental Impact Assessment Ordinance, Cap. 499 (EIAO). The Environmental Impact Assessment Report of the proposed WFM Complex was prepared in accordance with the Study Brief, ESB 061/2000, issued by the Director of Environmental Protection (DEP) and the Technical Memorandum on Environmental Impact Assessment Process (TMEIA).
2.1 In view of
the deterioration of structure, inadequacy of space for operation and environmental
nuisance imposed on the residents of the Sam
Shing Estate by the temporary Castle Peak Wholesale Marine Fish
M arket (CPFM) at Area 27 of Tuen Mun, relocation of
the market to a permanent area is necessary. The
permanent WFM Complex is proposed to be relocated at Area 44 of Tuen Mun where the
provision of community facilities is required to meet the needs
o f the expanding local population.
2.6 The proposed WFM Complex will have fisheries trading activities only at the ground floor level. These activities include wholesale chilled fish operations during the early hours of the morning (peak hours from 3:00am to 6:30am). The nominal design capacity for the fish market is 7900t per annum. (current throughput is approximately 6200t per annum or 17t per day). In addition to chilled fish auction operations, the WFM also caters for the unloading from vessels and the loading on vehicles of boxed fish (already boxed in ice) and live seafood during others hours (from 7:00am to 2:30pm). AFCD anticipate that boxed fish sales will gradually increase, currently 360 kilograms/day (0.35t/day), whilst the throughput of live seafood is around 660kilograms/day (0.65t/day). The market opening hours are from 3:00am to 5:00pm daily.
2.7 The WFM Complex includes a community hall, a spectator stand (for viewing the annual Dragon Boat Race) and other possible community uses which will provide much needed facilities to the nearby residents. In addition, the provision of a landscaped garden above the Fish Market will improve the visual environment along the shoreline. Table 2.1 shows the components of the proposed WFM Complex. The building layout plans are shown in Figures 3, 4, 5 & 6.
2.8 The joint-user complex originally incorporated a possible library which is included in the EIA study brief. Leisure and Cultural Services Department (LCSD) however, have reservations on the suitability of this site and currently do not support the inclusion. The provision allowed for the public library is therefore reserved for other possible community uses, which are also considered as environmental sensitive receivers and have been given full regard in the EIA study.
Table 2.1 Details of the proposed facilities
Population of accommodation
Wholesale Marine Fish Market
Fish Marketing Organisation
5000 sq.m. (GFA)
(including parking for 40 lorries)
Home Affairs Department
1000 sq.m. (GFA)
Other Possible Community Uses
To be confirmed
3500 sq.m. (GFA)
Refuse Collection Point (RCP) / Marine Refuse Collection Point (MRCP)
Food & Environmental Health Department (RCP) /
Marine Department (MRCP)
800 sq.m. (GFA)
Marine Management Office
Agriculture, Fisheries and Conservation Department
200 sq.m. (GFA)
Home Affairs Department
Roof of wholesale fish market
Food & Environmental Health Department
3.1 In order to address the environmental concerns, the EIA study has been conducted with reference to the operation of the existing temporary CPFM in addressing the likely key issues including air quality impact, noise impact, water quality impact and waste management. Hazard assessment was carried out through the identification and evaluation of different failure scenarios associated with ESSO’s Liquefied Petroleum Gas (LPG) Compound in the vicinity of the proposed development. The potential environmental impacts arising during the construction and operational phases are identified and evaluated. Mitigation measures and recommendations were proposed, where necessary, to alleviate the environmental impact and concerns.
subject site is an existing vacant flat area,
it is expected that no
extensive excavation at the site will be required and construction activities
highest potential to generate dust during site formation will be minimal.
The potential air quality impact arising from the construction of the proposed
WFM has been assessed and found to be within acceptable levels with the
implementation of dust suppression measures. Construction works will be closely
monitored to avoid smoke emissions from improperly maintained powered
mechanical equipment (PME).
4.2 Notwithstanding that minimal air quality impact due to the construction activities is anticipated, the “Dust Control Requirements” as listed in the Air Pollution Control (Construction Dust) Regulation should be complied with throughout the construction period. Good site management to ensure the proper functioning of PMEs is essential and will be checked by daily site inspections.
the operational phase air quality impact, the
assessment has considered odour from fish market and RCP operations, emissions
from additional lorries using the area and emissions from fishing vessels
approaching or leaving the market as potential sources of impact on air
These sources have been assessed using
measurements, where necessary, and adopting conservative assumptions to ensure that all potential
impacts are properly addressed and received necessary mitigation.
4.4 Odour from market operations during the peak hours (from 3:00am to 6:30am) has been assessed for the worst case scenario over a year. The predicted odour concentrations at most air sensitive receivers within the study area (i.e. within 500m of the site boundary) are well below the acceptable criteria and would unlikely to cause a nuisance.
WFM management will pay particular attention to the specified mitigation measures
for odour reduction and to any complaints that arise from nearby receivers. to monitorIn the event that such monitoring show
is a distinct incidence of impact at any
receiver there is
provision in the building design to incorporate a scrubber system into the
ventilation system to remove odour before it is discharged outside the complex.
4.9 No unacceptable impacts are expected to arise from offsite marine traffic or vehicular emissions and mitigation measures are not necessary for these potential impact sources.
4.10 In summary, the construction and operation of the complex should not lead to unacceptable air quality impact at any of the identified air sensitive receivers provided that the recommended mitigation measures are adopted.
is anticipated toThe potential construction noise impact on the
nearby sensitive receivers during the foundation and superstructure phases has
been evaluated. The assessment demonstrates that with
the use ofusing
quiet powered mechanical equipment, the construction noise levels at the nearby
sensitive receivers are within the acceptable noise limit as stipulated in TMEIA.
Practical noise mitigation measures such as scheduling of works, use of movable
noise screens and good site management practices are recommended to further
alleviate the potential construction noise impact.
The assessment has
identified fixed noise from market operations, traffic noise from additional
lorries using the area and marine traffic noise from fishing vessels
approaching or leaving the market as potential sources of operational noise
impact. These sources have been assessed using direct measurements, where necessary, and conservative assumptions to ensure that all potential impacts
are properly addressed and received necessary mitigation.
Sources of fixed noise arising from
the market operations and building services including that from vessels berthed at
the waterfront and lorries loading or waiting to load fish will not
unacceptable noise impact on any identified sensitive receivers after the
recommended mitigation measures are implemented.
· implementation of a management plan to ensure and monitor good practices for lorry and vessel management and schedule regular maintenance of equipment.
noise from lorries using the market is not expected to exceed
the acceptable limit at any sensitive receiver even without mitigation to deter
the use of southern section of Wu Shan road. To reduce noise even further to
receivers facing Wu Shan Road it is proposed to engineer the WFM
access junction to deter entrance or exit to the complex from the southern section of
Wu Shan Road.
5.8 In summary, the construction and operation of the WFM complex will not lead to unacceptable noise impact at any of the identified noise sensitive receivers provided that the recommended mitigation measures are adopted.
traffic noise from the engines of vessels approaching or leaving the market is
not expected to cause a nuisance to
any of the receivers close to the market irrespective of the route they take. At
Marina Gardens n ear the western entrance to
the typhoon shelter vessel engine noise may be close to background
levels but in view of the existing night time noise source from steel barges at this receiver and the
likelihood that fishing vessels will use either entrance to the shelter it is
unlikely that vessel noise will be greater than at present. As further
mitigation it is proposed that Marine Department to monitor
vessel traffic approaches to the new complex and to encourage
the continued use of the eastern entrance by most fishing vessels, which is
likely anyway if vessels use the typhoon shelter’s eastern mooring facility.
6.1 The WFM Complex is bounded to the east by the typhoon shelter at Castle Peak Bay. The ambient water quality in the vicinity of the typhoon shelter generally complies with the Water Quality Objectives (WQO) of the North Western Water Control Zone.
6.2 During the construction period, the water pollution sources will include piling works, wheel washing, surface runoff and occasional spillage of oil from equipment. The surface runoff generated will mainly be laden with silt and mud and appropriate silt traps will be constructed to avoid water quality impact on the water body. Chemicals will be handled in proper manner in accordance with the statutory requirements and guidance notes.
and surface runoff from the construction site should be collected and treated
appropriately before discharge into storm drain. The required effluent discharge standards
and monitoring requirements as stipulated in Water Discharge License
complied with throughout the construction period.
6.4 Major water pollution sources during the operation of the WFM Complex are cleansing of WFM and refuse collection points and sewage from toilets. The wastewater will contain suspended solids and organic matters and will be discharged into the main foul drainage system.
6.5 As the site
is located in urban area, all the wastewater and foul discharge generated from
the WFM Complex
be directed to the foul sewer, whereas uncontaminated rain water should be
directed to the surface water system or directly into the sea, whichever is
The general approach of waste
management plan is prioritised as elimination, reduction, reuse, treatment and
then disposal of waste. The handling of waste
conducted in accordance with relevant ordinances, regulations and guidelines to
ensure that no environmental nuisance is caused. 7.1 Construction waste s
including vegetation, plywood, excavated soil, rubble, packaging and garbage
are likely to be generated during the construction period. Small quantities of
chemical waste such as lubricant and thinner for the construction works are
7.2 No special waste will be generated during the construction period. The major construction wastes include excavated soil, spent concrete, wooden board and steel; and solid waste such as garbage, plywood and scrap metal. A Waste Management Plan (WMP), to be approved by the Architect, will be required in the building contract in accordance with the Works Bureau Technical Circular No. 29/2000 to set out the disposal strategy and waste management practice to be implemented by the Contractor during construction.
7.3 Market operations will generate daily waste including broken polyfoam boxes, and small amounts of other plastic debris and dead fish. Reusable containers including polyfoam boxes will be used for fish rather than one-use containers. Recycling of material from broken polyfoam boxes will be arranged through specialist contractor. After cleansing of the market the small amount of dead fish that remains will be sealed in collection bags and removed to the RCP in sealed containers within two hours of completion of auction activities.
Municipal solid waste generated from community hall,
offices and other possible community uses will be segregated. Reuse of
materials will be practiced
, as for example
single-sided paper for rough works, as much as possible within the
subject development. Any recyclable and reusable materials will be collected
and sent to waste collectors for regeneration.
A management committee will be
established to oversee the management and smooth running of
The Complex. The committee will draw up and
implement a waste management plan to identify appropriate segregation and
disposal of all waste and to check and maintain tidy and hygiene conditions for
The Complex at all
times. The committee will be
responsible for regular assessment and updating of the management plan as
8.1 The location of the WFM Complex is such that about one-third of it would fall within the consultation zone of the LPG installation existing in Area 44 Tuen Mun. The risk assessment, through the use of hazard identification, identified a number of failure scenarios. The assessment results demonstrate that there is no unacceptable risk to the population of the area.
8.2 The following mitigation measures are proposed to reduce the risk to minimal:
· Presence of a “crane free zone” to reduce the risk of tank damage due to crane operations during construction.
· Before excavation work is undertaken, the gas company will be contacted to obtain information on all gas pipes in the vicinity of the site. Suitable pipe locating devices and hand dug trial holes will be used to locate and confirm position of underground pipes. All workers will be given sufficient guidance about working in the vicinity of pipelines. Excavation will be carried out with due care following any advice given by the Gas Authority or Gas Company.
· Presence of a manually operated warning siren to instruct people to take shelter timely in case of emergency and thus reduces the risk to lives.
· Arrangement will be made with ESSO to avoid LPG delivery during the hours when the spectator stand is fully occupied on the day of the Dragon Boat Festival.
· The final design of the WFM complex will minimize pedestrian access to the area of podium within the 150m consultation zone by concentrating planting areas within this zone of the podium where possible.
9.1 An environmental monitoring and audit (EM&A) manual has been prepared for the construction and operational phases of the proposed WFM Complex in order to monitor the noise impact, air quality, water quality and waste management. The manual has also been submitted along with the EIA Report.
10.1 The potential environmental impacts due to the construction and operation of the proposed WFM Complex have been assessed with respect to the environmental aspects including air quality, noise, water quality, waste management and hazard to life. With the implementation of suitable mitigation measures and EM&A, the construction and operation of the WFM Complex will have no adverse impact on the environment.