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What is the radiological monitoring arrangement for water supply in Hong Kong?

The Water Supplies Department (WSD) monitors continuously the radioactivity levels of the Dongjiang water supply 24 hours round the clock through the On-line Water Contamination Monitoring System installed at Muk Wu Pumping Stations. Furthermore, regular samples are also taken from the entire water supply system including Muk Wu Pumping Stations, local catchwaters, impounding reservoirs, water treatment works and distribution networks including consumers' taps for radiological analysis. Every year, the WSD takes about 1,200 raw water and 1,600 treated water samples from the entire water supply system for radiological analysis.  

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 In the aftermath of the nuclear power plants incident in Fukushima Prefecture of Japan, is there any impact on the quality of water supply in Hong Kong?

Since 11 March, the WSD has stepped up the radiological monitoring by taking raw and treated water samples from water treatment works and impounding reservoirs for radiological analysis. Our monitoring results indicate that artificial radionuclides are not detected in the Dongjiang water, impounding reservoirs and treated water samples. There are no observable changes in the radioactivity levels before and after the nuclear power plants incident in Fukushima Prefecture. The radioactivity levels of water supply are well below the safety limits recommended by the International Atomic Energy Agency. The radiological quality of drinking water in Hong Kong is perfectly safe for consumption.

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 Is the tap water at my home potable?

copper pipe
copper pipe
lined galvanized steel pipe
lined galvanized steel pipe
polyethylene pipe
polyethylene pipe
rusty unlined galvanized steel pipe
rusty unlined galvanized steel pipe
double sealed tank cover with lock
double sealed tank cover with lock
damaged water tank cover
damaged water tank cover
water tank not cleaned
water tank not cleaned
rusty water tank cover
rusty water tank cover
storage tank without proper maintenance and management
storage tank without proper
maintenance and management
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 Is Hong Kong's treated water safe for consumption?

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 Why does the tap water contain a smell of chlorine?

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 Why are sediments always found in my electric kettle?

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 Is it necessary to install a domestic water filter (including that incorporated in a drinking fountain or other similar water using apparatus)?