9.0 IMPLEMENTATION SCHEDULES

Introduction

9.1 In order to reduce the potential impact due to the construction and operation of the concrete batching plant, the following tables summarize the implementation schedules in during the design, construction, operation and decommissioning of the concrete batching plant.

Implementation Schedule of Mitigation Measures for Air Quality Control on the Concrete Batching Plant

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Water spray installed on barge for wetting the sand and aggregates1. Conveyor barge used for unloading aggregate3. Fully enclosed conveyor used to unload the material to the aggregate-receiving hopper1. Aggregate receiving hopper installed with 3 sides and water spray1. The wetted sand and aggregates are loaded into the tipper truck in enclosed loadout section1.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
The storage yards are installed with 3 sides enclosure and roof, curtain at entrance1. Water spray is installed in storage yard for wetting the sand and aggregates1. Aggregate Storage Bins and Aggregate Overhead Storage Bins are fully enclosed1.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
The tipper trucks with wetted sand and aggregates are covered with plastic canvas2. The aggregate materials are unloaded into storage yards which has 3 sides enclosure and roof, curtain at entrance and water spray1. The sand and aggregates are wetted before transferring to aggregate receiving hopper1. Aggregate receiving hopper installed with 3 sides and roof and water spray1. The sand and aggregates are transferred by fully enclosed conveyors1. Aggregate conveyor and Transfer Points are fully enclosed1. The sand and aggregates are unloaded into fully enclosed overhead storage bins1.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
The sand and aggregates are transferred and weighed within an enclosed structure1.	Throughout the operation of the concrete batching plant	Plant Operator			Ö
All cementitious materials are transferred within a fully enclosed piping system1,2. The cement blower of barge is enclosed1,2. The cement tanker and silos are fully enclosed systems1,2. Dust-laden air is filtered through bag filter and vented to the dust collectors1,2.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
The silos are fully enclosed1,2. Dust-laden air is filtered through bag filter and vented to the dust collectors1,2. The level alarms are installed for all silos to prevent overfilling1,2. Cement Tanker will transfer the materials within an enclosure1,2.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö

1. Recommended by the Best Practicable Means Requirement for Cement Works (Concrete Batching Plant)

2. Recommended by the Air Pollution Contral (Construction Dust) Regulation in Dust Control

3. Good Site Management Practices

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Air Quality Control on the Concrete Batching Plant (Cont’d)

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
The weigh hopper is fully enclosed1,2. Dust-laden air from the cementitious weigh hoppers is filtered through bag filter and vented to the dust collector1,2. Cementitious transfer using fully enclosed pipes and screw conveyors1,2.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
The mixer is fully enclosed1. Dust-laden air in the mixer is filtered though bag filter and vented to the dust collector1,2.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
All mixing & loading conduct in fully enclosed area1,2. Truck loaded with concrete in “Wet” form1,2.	Throughout the operation of the concrete batching plant	Plant Operator			Ö
Well maintained trucks3. Clean trucks regularly1. Trucks comply with HKSAR regulations2.	Throughout the operation of the concrete batching plant	Plant Operator			Ö
Floor to be concrete paved1,2. Pavement to be kept moist with water1,2.	Throughout the operation of the concrete batching plant	Plant Operator			Ö
Perform regular maintenance works for plant equipment1,3. Maintain all environmental control facilities in operating condition3.	Throughout the operation of the concrete batching plant	Plant Operator			Ö

1. Recommended by the Best Practicable Means Requirement for Cement Works (Concrete Batching Plant)

2. Recommended by the Air Pollution Contral (Construction Dust) Regulation in Dust Control

3. Good Site Management Practices

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Air Quality Control on the Concurrent Works at Telegraph Bay which was already in place

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Regular watering of all haul roads with complete coverage once every 2 hours in normal conditions and hourly in dry / windy conditions	Cyberport Construction	Contractors		Ö
Speed control for all on-site vehicle movement to 10km/h	Cyberport Construction	Contractors		Ö
Watering of the whole area with complete coverage twice daily	Cyberport Construction	Contractors		Ö

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Noise Control

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Use of quieter equipment	During the construction of the Concrete batching Plant	Contractors		Ö
Fully enclose the conveyor to unload the material to the aggregrate receiving hopper	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
Fully enclose the concrete mixer	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
Mixer driven by electric motor	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö
Conduct all mixing and loading in fully enclosed area	Throughout the operation of the concrete batching plant	Plant Operator			Ö
Well maintain all concrete trucks	Throughout the operation of the concrete batching plant	Plant Operator			Ö
Perform regular maintenance works for plant equipment	Throughout the operation of the concrete batching plant	Plant Operator			Ö

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Water Pollution Control

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Works should be programmed to avoid the rainy season whenever possible to minimise storm runoff. If work during rainy season cannot be avoided, precautions should be taken to prevent soil erosion.	Throughout the construction of concrete batching plant	Plant Operator		Ö
Channel or earth bunds should be constructed to direct the runoff to sand/silt removal facilities.	Throughout the construction of concrete batching plant	Plant Operator		Ö
Perimeter channels should be constructed to stop the storm runoff from washing across the site	Throughout the construction of concrete batching plant	Plant Operator		Ö
Sand/silt removal facilities should be checked and cleaned regularly to ensure these facilities are working in good condition.	Throughout the construction of concrete batching plant	Plant Operator		Ö
Exposed soil surface should be paved to reduce the potential soil erosion.	Throughout the construction of concrete batching plant	Plant Operator		Ö
Stockpiles of construction materials on site should be covered with tarpaulins or similar fabric to prevent surface erosion. Minimisation of stockpiling in the wet season will reduce the chance of silt laden surface runoff from entering the ocean	Throughout the construction of concrete batching plant	Plant Operator		Ö
All washing water will be collected, stored and recycled. No water will be discharged outside the plant boundary	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Waste Management

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Install a concrete recycling machine to reduce material consumption and waste generation.	Throughout the operation of concrete batching plant	Plant Operator	Ö		Ö
Maintenance of records of quantities of wastes generated, recycled and disposed, including disposal location	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Where practicable, different types of wastes should be segregated, stockpiled and stored in different containers or skips to enhance reuse or recycling of materials and their proper disposal	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Good site management, planning and design considerations to reduce over-ordering and waste generation	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Educate workers on the concepts of site cleanliness and appropriate waste management procedures	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Minimise land-take by reducing the size of the stockpiles and associated working areas	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Provide fencing to separate sensitive habits and landscape areas to prevent accidental stockpiling in these areas	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Designate appropriate haulage routes	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Keep material covered in heavy rainfall	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Keep movement of stockpiled material to a minimum	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Optimise reuse of suitable material on site to reduce the volume of materials to be disposed to public filling areas	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Use appropriate dust suppression by use of appropriate bunding, interceptors and direction of run-off into settlement ponds	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
For wastes with <20% of non-inert materials, should be segregated and disposed of to public filling area	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Waste collection by an approved licensed waste collectors	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
All necessary waste disposal permits should be obtained	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Store appropriately and isolate from current working areas	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Secure storage area should be set up for chemical waste storage (refer to ‘Practice on the Package, Labelling and Storage of Chemical Wastes’)	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Waste Management

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
Erect appropriate fence and signs beside the chemical waste storage area	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Minimise waste production and careful handling of waste fuel and oil residues	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Supply spill absorbent material and emulsifiers in case of spillages	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Store wastes remote from sensitive receivers	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Wastes should be stored in black refuse bags prior to collection and disposal	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Frequent collection of general refuse	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Regular maintenance and cleaning of the waste storage areas	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Sewage generated on the site should be controlled through the use of chemical toilets or sewage holding tanks. Either would require regular cleaning with the resulting sewage disposed of appropriately	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö
Storage of a material in suitable containers	Throughout the construction and operation of concrete batching plant	Plant Operator		Ö	Ö

* Des = design, C = construction, O = operation, Dec = decommissioning

Implementation Schedule of Mitigation Measures for Visual Impacts

Environmental Protection Measures	Timing	Implementation Agent	Implementation Stages *
			Des	C	O	Dec
The external façade and reflective surface of the concrete batching plant shall be painted to dull green to reduce reflection and increase the visual compatibility.	Throughout the operation of the concrete batching plant	Plant Operator	Ö		Ö

* Des = design, C = construction, O = operation, Dec = decommissioning