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Drainage Services Department - Sustainability Report 2014-15

Meeting the Targets / On Environmental Issues

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Sub-sections in Meeting the Targets

[Meeting the Targets] [On Social Issues] [On Routine Services]

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In order to review and continuously improve our sustainability performance, we have established various targets on environmental performance, social performance and service quality, and takencorresponding actions to achieve them. Details of our achievements in the reporting year and targets set for 2015-16 are summarised in this chapter.

On Environmental Issues

Environmental Target 2014-15 Achievement
Adopting state-of-the-art clean technologies and pollution prevention measures
Adopt three new clean technologies or pollution prevention measures within a three-year period starting from 2013-14 The progress was satisfactory. We have adopted two new green technologies, namely rainwater harvesting and biogas desulfurisation.
Conduct three research and development (R&D) items for clean technologies We have commissioned R&D items in four areas, namely solar power generation, zero carbon design, renewable energy and co-digestion.
Integrating sustainability considerations into the design, construction and operation of our facilities
Achieve 100% compliance with the statutory environmental impact assessment (EIA) process 100% compliance with statutory EIA process achieved.
Meet with green groups/academics at least six times each year to consider sustainability matters We met with green groups four times and academics two times during the year.
Use 1,400 cubic metres of reclaimed water or harvested water per day by the end of 2014/15 On average, we used 1,560 cubic metres of reclaimed water per day.
Conduct two new carbon audits and five surveillance carbon audits We have conducted two new carbon audits and five surveillance carbon audits.
Minimising and mitigating environmental impacts arising from the construction and operation of our facilities
Build 5,000 square metres green roof and 100 square metres vertical greening 6,051 square metres green roof and 576 square metres vertical greening were built.
Plant 2,100 trees and 390,000 shrubs Target not met due to delay in some projects. We planted 570 trees and 370,000 shrubs.
Meeting all statutory and regulatory requirements on environmental performance that are applicable to the activities of DSD
Achieve 100% compliance under environmental legislation Target not met. Routine self-monitoring revealed sub-standard effluent was discharged from a small sewage treatment plant due to overload. We have stepped up our monitoring efforts and carried out corresponding improvement measures to ensure compliance with statutory water quality requirements.
Devising and conducting internal operations in an environmentally responsible manner
Reduce paper consumption by another 2% Reduced paper consumption by over 4%.
Save energy of 1.26 million kilowatt-hours which is equivalent to 0.5 % energy consumption of the base level in 2006-07 The target was not met mainly because two energy saving projects were not completed on schedule, namely i) trial Ultraviolet Disinfection System in Siu Ho Wan Sewage Treatment Works (STW) and ii) Power Quality and Energy Management System (PQEMS) in Tung Chung Sewage Pumping Station (SPS) and Siu Ho Wan STW.Saved energy of 1.20 million kilowatt-hours which is equivalent to 95% of the targeted amount of energy savings in 2014-15.

The Ultraviolet Disinfection System for Siu Ho Wan STW have been installed in 2015-16. Energy saving measures would be proposed subject to the measurement result of the PQEMS in Siu Ho Wan STW is available.
Increase the total mileage of electric vehicles by 20% The increase in total mileage of electric vehicles was 33%.
Environmental Targets 2015-16
Adopting state-of-the-art clean technologies and pollution prevention measures
Adopt three new clean technologies or pollution prevention measures within a three-year period starting from 2013-14
Conduct three R&D items for clean technologies
Integrating sustainability considerations into the design, construction and operation of our facilities
Achieve 100% compliance with the statutory EIA process
Meet with green groups/academics at least six times each year to consider sustainability matters
Use 1,500 cubic metres of reclaimed water or harvested water per day by the end of 2015-16
Conduct two new carbon audits and five surveillance carbon audits
Minimising and mitigating environmental impacts arising from the construction and operation of our facilities
Build 4,000 square metres green roof and 150 square metres vertical greening
Plant 2,300 trees and 60,000 shrubs
Meeting all statutory and regulatory requirements on environmental performance that are applicable to the activities of DSD
Achieve 100% compliance under environmental legislation
Devising and conducting internal operations in an environmentally responsible manner
Reduce paper consumption by another 2%
Save energy of 1.3 million kilowatt-hours which is equivalent to 0.52% energy consumption of the base level in 2006-07
Increase the total mileage of electric vehicles by 10%
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