BEAM Plus Interiors Manual

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BEAM PLUS INTERIORS
COMMERCIAL, R ETAIL AND INSTITUTIONAL
WATER USE (WU)
WU 1 WATER QUALITY S URVEY
Copyright © BEAM Society Limited. All rights reserved. Page 94
ii. record photographs, twin-tank system;
BACKGROUND According to WSD [ Hong Kong’s water is of the safest quality and
among the best in the world. However, it is affected in some instances
by the inadequate maintenance of internal plumbing systems before it
reaches customers’ taps and this can cause discolouration of the
water.
To encourage the building owners to maintain their plumbing systems
properly and with the endorsement of the Advisory Committee on the
Quality of Water Supplies (ACQWS), the Water Supplies Department
launched the Fresh Water Plumbing Quality Maintenance Recognition
Scheme [ in 2002. Since 1 January 2008, the Scheme has been
renamed as Quality Water Recognition Scheme for Buildings. The
successful applicants will be awarded a Certificate to recognise
proper maintenance of the plumbing systems inside a building for
keeping the good quality of government supplied water throughout the
inside service up to the consumers’ taps.
The twin-tank system can bring few benefits. These include:-
i. Un-interrupted water supply to consumers;
ii. Water saving;
iii. Facilitating cleansing operation.
More details can be found in WSD website ].
SAMPLING ISO 5667 establishes detailed principles to be applied to the design of
sampling programmes, to sampling techniques and to the handling
and preservation of samples of drinking water and water used for food
and beverage processing (drinking water). It is important that the
sampling purpose be defined as accurately as possible and that the
measurements provide the required information in the most efficient
and statistically representative manner.
3 Water Supplies Department. Annual Report.
4 Water Supplies Department. Fresh Water Plumbing Maintenance Guide.
5 Water Supplies Department. Twin-tank System