Page 162 - Hong Kong Green School Guide
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5. Operations and Maintenance - 5.2 Building Monitoring
Hong Kong Green School Guide
160
5.2.3 Water Quality Sampling
Key Points
• Ensure that the quality of potable
water delivered to school users is
satisfactory;
• Promote proactive approach to
monitor the quality of potable
water in accordance with Water
Supplies Department Guidelines,
as the quality of water drawn from
consumers’ taps may sometimes
be affected by the condition of
the inside plumbing, such as
the phenomenon of discoloured
water due to the presence of iron
from rusty pipes;
• Sampling should be taken at the farthest point(s) of use in the water
distribution system from the water storage tank or the water supply point; and
• The cost for water sampling as per Quality Water Recognition Scheme for
Buildings by Water Supplies Department is around $500 to $700 per sample.
More information has been provided in the Useful Reference (2) below.
Useful References
(1) The Government of Hong Kong Special Administrative Region. Water Supplies
Department. (2009). Water Quality Control. Retrieved 1 June, 2012, from
(2) The Government of Hong Kong Special Administrative Region. Water Supplies
Department. (2009). Quality Water Recognition Scheme for Buildings. Retrieved 1
June, 2012, from
(3) The Government of Hong Kong Special Administrative Region. Water Supplies
Department. (2009). FAQs. Water Quality. Retrieved 1 June, 2012, from
(4) The Government of Hong Kong Special Administrative Region. Water Supplies
Department. (2008, November). Fresh Water Plumbing Maintenance Guide.
Retrieved 1 June, 2012, from
(5) World Health Organization. (2012). Guidelines for drinking-water quality. Retrieved
1 June, 2012, from
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