11          MITIGATION MEASURES IMPLEMENTATION SCHEDULE

 

 

EIA

Ref.

Section

EM&A Ref.

Section

Environmental Protection Measures

Location/Duration of Measures/ Timing of completion measures

Implementation Agent

Implementation Stage*

Relevant Legislation & Guidelines

I

II

III

IV

4.7

2.8

Air Quality

 

 

 

 

 

 

 

 

 

·         Hoarding of not less than 2.4m high shall be provided along the site boundary section adjoins a road, street, service land or other area accessible to the public

Construction site of the proposed WFM/ Throughout the construction period

Contractor

 

 

4

 

 

APCO/EIA Study

 

 

·         Spray water to where excavation to be taken place immediately prior to, during and after excavation

 

 

 

4

 

 

 

 

 

·         Any stockpile of dusty material shall be either: (a) covered entirely by impervious sheeting; (b) placed in an area sheltered on the top and the three sides; or (c) sprayed with water or a dust suppression chemical so as to maintain the entire surface wet

 

 

 

4

 

 

 

 

 

·         Cement bags or any other dusty materials collected during the work should be disposed of in totally enclosed containers

 

 

 

4

 

 

 

 

 

·         All dusty materials should be sprayed with water immediately prior to any loading, unloading or transfer operation so as to minimise the dusty materials wet

 

 

 

4

 

 

 

 

 

·         Any dusty material remaining after a stockpile of cement or other materials is removed should be wetted and removed from the surface of roads

 

 

 

4

 

 

 

 

 

 

·         Where a vehicle leaving the construction site is carrying a load of dusty materials, the load shall be covered entirely by clean impervious sheeting to ensure that the dusty materials do not leak from the vehicle

 

 

 

4

 

 

 

 

 

·         Conveyor belts shall be fitted with windboards, and conveyor transfer points and hopper discharge areas shall be enclosed and fitted with belt cleaners

 

 

 

4

 

 

 

 

 

·         Skip hoist for the transport of construction wastes should be properly enclosed

 

 

 

4

 

 

 

 

 

·         Vehicle washing facilities including a high pressure water jet shall be provided at the designated vehicle exit point and every vehicle immediately before leaving the construction site shall be washed to remove any dusty materials from its body and wheels

 

 

 

4

 

 

 

 

 

·         Every main haul road, vehicle washing areas and the section of road between the washing facilities and the exit point shall be paved with concrete, bituminous materials, hardcore or metal plates and kept clear of dusty materials or sprayed with water so as to maintain the entire road surface wet

 

 

 

4

 

 

 

 

 

·         Debris from the construction of the WFM shall be covered entirely by impervious sheeting or stored in a sheltered debris collection area

 

 

 

4

 

 

 

 

 

·         The WFM (including parking area) shall be enclosed with no unprotected openings facing Wu Shan Road to reduce the potential odour nuisance posed to the nearby residents

WFM Complex

Throughout the operational phase

ArchSD

4

 

 

 

 

 

 

·         Exhaust air from the WFM (including parking area) shall be discharged on the eastern elevation facing the typhoon shelter

 

 

4

 

 

 

 

 

 

·         Contingency provision of future addition of odour removal system for the WFM, if required, will be allowed in the current design

 

 

4

 

 

 

 

 

 

·         All fresh air intakes for the Community Hall and Other Possible Community Uses shall be sited at upper levels above 15mPD and 18.5mPD, respectively, and fitted with appropriate filters to remove odour

 

 

4

 

 

 

 

 

 

·         Exhaust air from the RCP and Marine RCP shall be treated with appropriate deodorisation system prior to discharge to outdoors

 

FEHD/MD

4

 

 

 

 

 

 

·         Good hygiene and effective operational and waste management practices

 

WFM Management

 

 

4

 

 

 

 

·         Daily washing down of fish market areas and the storage and daily removal of organic wastes

 

 

 

 

4

 

 

 

 

·         Drains and channels shall be easy to clean and construction materials for the WFM shall be impervious, durable and easy to clean

 

 

4

 

 

 

 

 

 

·         Measures should be taken to further minimize the potential odour impact during the transportation of fish or other odorous materials, including the use of properly covered containers

 

 

 

 

4

 

 

 

 

·         Deodourisation systems shall be installed for the public toilets

 

 

4

 

 

 

 

5.7

3.7

Noise

 

 

 

 

 

 

 

 

 

·         Use quiet plant where practicableconstruction equipment

Construction site of

Contractor

4

 

 

 

NCO/EIA

 

 

·         Use silencers / mufflers, noise barriers / enclosure where practicable

the proposed WFM Throughout the

 

 

4

 

 

Study

 

 

·         The Contractor is required to determine the number and type of construction equipment taking into account the use of quiet plant while devising a feasible work programme

construction period

 

 

4

 

 

 

 

 

·         Only well-maintained plant shall be operated on-site and all equipment shall be routinely checked

 

 

 

4

 

 

 

 

 

·         Turn off or throttle down idle plant

 

 

 

4

 

 

 

 

 

·         Plants known to emit noise strongly shall be oriented away from NSRs

 

 

 

4

 

 

 

 

 

·         Mobile plants shall be sited as far away from NSRs as possible

 

 

 

4

 

 

 

 

 

·         Stockpiles and other structures shall be effectively utilised as practicable to screen noise from on-site construction activities

 

 

 

4

 

 

 

 

 

·         Obtain valid noise permits for construction work during restricted hours

 

 

 

4

 

 

 

 

 

·         Contract specifications on the sound power level

 

ArchSD

 

4

 

 

 

 

 

·         To avoid a potential night time nuisance to nearby residents a right-turn only junction (northern access road/Wu Shan Road) is provided for vehicles leaving the WFM

WFM entrance and waterfront Throughout the operational phase

ArchSD/TD

4

 

4

 

 

 

 

·         Arrangement will be made with drivers to reduce lorry queuing; assistance will be sought from WFM users and vessel operators to avoid loudhailer operation and reduce horn tooting along the seafront

 

WFM Management

 

 

4

 

 

 

 

·         MD and WFM management to encourage vessels to use the eastern harbour entrance

 

MD/Fishermen’s Assn./

 

 

4

 

 

 

 

·         MD and WFM management to encourage the use of silencers at fishing vessels’ exhaust

 

WFM Management

 

 

4

 

 

 

 

·         MD to monitor and maintain practical and safe movement within the harbour, and to assist MARPOL and EPD in minimizing where possible noise impact to nearby residents

 

 

 

 

4

 

 

 

 

·         To request vessel owners to avoid horning except in emergency and to use other means such as phones to notify their presence

 

AFCD/WFM Management

 

 

 

4

 

 

 

 

·         The WFM (including parking area) shall be enclosed with no unprotected openings facing Wu Shan Road to reduce potential noise nuisance posed to the nearby residents

WFM Complex

ArchSD

4

 

 

 

 

 

 

·         A canopy is to be provided to cover all the fish unloading areas on the quay to increase noise screening to NSRs

 

 

4

 

 

 

 

 

 

·         Mechanical plant exhausts shall be directed towards the typhoon shelter and appropriately screened from Wu Shan Road and nearby NSRs

 

 

4

 

 

 

 

 

 

·         Suitable noise control measures will be included in building services system design, such as installation provision of silencers and acoustic louvers to mechanical plant and at plantroom

 

 

4

 

 

 

 

6.7

4.1

Water Quality

 

 

 

 

 

 

 

 

 

·         Site shall be kept clean and tidy to avoid construction materials and waste being washed off from site

Construction site of the proposed WFM

Contractor

 

4

 

 

WPCO/EIA Study

 

 

·         Works shall be planned to avoid rainy season so as to minimize the runoff and reduce the amount of soil that can be carried offsite

Throughout the construction period

 

 

4

 

 

 

 

 

·         Surface run-off from the construction site shall be directed to silt traps or sedimentation basin before reuse or discharge with help of channels, earth bunds or sand bag barriers for suspended solids removal prior to its being discharged to storm water drain. Silt trap design shall conform to the guidelines laid down in Appendix A1 of ProPECC PN 1/94

 

 

 

4

 

 

 

 

 

·         Wastewater likely to be contaminated with oil or grease should be passed through an oil separator or grease trap before entering the site drainage system

 

 

 

4

 

 

 

 

 

·         Hoarding gaps should be tightly sealed to avoid the seepage of wastewater to the nullah and outside the site

 

 

 

4

 

 

 

 

 

·         Perimeter channels shall be provide at site boundaries, where necessary, to intercept storm-water runoff from outside the site

 

 

 

4

 

 

 

 

 

·         Silt traps, sedimentation basins, channels and manholes shall be regularly cleaned to remove the deposited silt and grit

 

 

 

4

 

 

 

 

 

·         Temporarily exposed slope surfaces and construction material stockpiles shall be covered with tarpaulin or similar fabric to prevent erosion

 

 

 

4

 

 

 

 

 

·         Wastewater generated from bored-piling shall be re-circulated after sedimentation as practicable.  The final discharge of the wastewater shall be via silt removal facilities

 

 

 

4

 

 

 

 

 

·         All fuel tanks and chemical storage areas shall be surrounded by bunds with a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled oil, fuel and chemicals from reaching the receiving waters

 

 

 

4

 

 

 

 

 

·         Obtain valid discharge license for construction site discharges

 

 

 

4

 

 

 

 

 

·         Chemical toilets shall be provided on site

 

 

 

4

 

 

 

 

 

·         Monitor the quality of water discharge to ensure compliance of the license condition

 

 

 

4

 

 

 

 

 

·         Surface drainage channels of operational areas shall be easily cleaned and connected to foul sewerage

WFM Complex, RCPs and public toilets

ArchSD

4

4

4

 

 

 

 

·         Wastewater from toilets, kitchen, and other users of the WFM market shall be discharged into a foul sewer or a sewage treatment facility. No effluent discharge into the nullah will be allowed

Throughout the operation phase

 

4

 

 

 

 

 

 

·         The flushing water storage tank shall be properly designed so as to minimize the amount of water for each flush

 

 

4

 

4

 

 

 

 

·         Wastewater resulting from cleansing of floors of the fish market and the refuse collection units (RCP) should be discharged into a foul sewer to avoid direct discharge of wastewater to the nullah

 

 

 

 

4

 

 

 

 

·         Chemical toilets shall be provided to cope with the additional sewage generated on the day of Dragon Boat Festival

 

 

 

 

4

 

 

7.2

5.1

Waste Management

 

 

 

 

 

 

 

 

 

·         Reuse of excavated soils for back-filling and landscaping purposes

Construction site of the proposed WFM

Contractor/ ER

 

4

 

 

WDO/EIA Study

 

 

·         All reusable and recyclable waste materials shall be segregated and stored in different containers, skips or stockpiled

Throughout the construction period

 

 

4

 

 

 

 

 

·         Separate the inert and non-inert portions of construction material for disposal of public fill and landfill respectively

 

 

 

4

 

 

 

 

 

·         Employ approved licensed waste collectors to collect the inert construction materials to be disposed of at public fill

 

 

 

4

 

 

 

 

 

·         Provide a temporary storage areas for storing and stockpiling reusable and recyclable materials

 

 

 

4

 

 

 

 

 

·         Contractor should register as chemical waste producer should chemical waste is produced

 

 

 

4

 

 

 

 

 

·         Licensed waste collectors shall be employed for collecting chemical wastes for disposal

 

 

 

4

 

 

 

 

 

·         Handling and Disposal of chemical waste shall be in accordance with the Code of Practice on the Practice on the Packaging, Labelling and Storage of Chemical Wastes issued under the Waste Disposal Ordinance

 

 

 

4

 

 

 

 

 

·         Quantities of waste materials generated on site and disposal record (e.g. trip ticket) shall be kept on site for inspection

 

 

 

4

 

 

 

 

 

·         A Waste Management Plan (WMP) shall be prepared to set out waste handling and disposal strategy and submitted for the architect’s approval

 

 

 

4

 

 

 

 

 

·         Material being temporary used for construction shall be recyclable as possible

 

 

 

4

 

 

 

 

 

·         Design and provide an area within the construction site to allow on-site sorting and segregation of waste materials

 

 

4

4

 

 

 

 

 

·         Training shall be provided to site staff on waste minimisation practices including waste reduction, reuse and recycling

 

 

 

4

 

 

 

 

 

·         Disposal of C&D material shall be monitored by Trip-Ticket System

 

 

 

4

 

 

WBTC No.5/99

 

 

·         In order to minimize the amount of waste disposal, durable and reusable containers should be used, where practicable, instead of plastic bags

WFM Complex

Throughout the operational phase

 

 

4

4

 

 

 

 

·         Organic matter shall be collected and sealed in plastic bags after each operation and removed daily

 

 

 

 

4

 

 

 

 

·         The design shall allow for separation and suitable storage of broken polyfoam casings prior to collection

 

 

 

 

4

 

 

 

 

·         Municipal solid waste generated from community hall, library and offices will be segregated

 

 

 

 

4

 

 

8.7

6.1

Hazard to Life

 

 

 

 

 

 

 

 

 

·         Cranes shall be located away from the LPG compound and its access as far as possible

Construction site of the proposed WFM

Contractor

 

4

4

 

 

 

 

·         Before excavation work is undertaken, the gas company should be contacted to obtain information (drawings, plans) of all gas pipes in the vicinity of the site. Suitable pipe locating devices must be used to locate underground pipes. Hand dug trial holes must then be used to confirm the position of underground pipes. Excavation must be carried out with extreme care following any advice given by the Gas Authority or Gas Company

Throughout the construction period

 

 

4

 

 

 

 

 

·         Sufficient guidance shall be given to all workers before carrying out excavation in the vicinity of pipelines

 

 

 

4

 

 

 

 

 

·         Manually operated warning siren shall be installed to instruct people to take timely shelter

Within WFM

At all time

ArchSD/

Contractor

4

4

4