Kai Ching Estate has Quality Water Certification

The Kai Ching estate, in the middle of the Lead (Pb) ‘scandal’ and the Legionella case associated with Mun Ching House achieved the WSD (http://www.wsd.gov.hk) Quality Water Recognition Scheme for Buildings certification! (see image below). Lead (Pb) is not one of water quality parameters tested.

kai ching estate, lead, legionella, hong kong, water quality certificate

In the past I highlighted Hong Kong’s building water quality issues (here) but my office building is not listed above, I am certain that WSD will revise the criteria after this incident. So far Lead (Pb) contamination of the residents water has been detected in the following sites:

  1. Kai Ching Estate, Kowloon City
  2. Kwai Luen Estate, Kwai Chung
  3. Shui Chuen O Estate, Sha Tin

updated: 17 July 2015

Late yesterday (16 July 2015) WSD published a circular letter no. 1/2015 (Chinese only) online, dated 13 July 2015, it now requires Flats (subject to interpretation) to provide a declaration letter for No Lead in solder, and additional water quality testing parameters in the laboratory report, including:

Lead (Pb)  ≤10 μg/l
Cadmium (Cd)  ≤3 μg/l
Chromium (Cr)  ≤50 μg/l
Nickel (Ni)  ≤70 μg/l

Needless to add that these new requirements only apply to new water meter applications. However, the estimated to be 50,000 renovation projects per year, are not required to conduct any type of water quality test!


 

Building Water Quality Issues

hong kong quality water

Considering the water quality delivered to the tap, it is no wonder that Hong Kong people prefer bottled water, and boil water everyday.

Whilst the quality of our drinking water provided by our water utility (WSD) may reach world class standards, what comes out of the tap is a different matter. Improved plumbing systems, piping, tanks, coupled with mandatory maintenance are required to rebuild the confidence to use the potable water provided, learn more here. In my office the water (see photo above) is very poor indeed, would you drink it? And boiling all that water demands a lot energy, we are looking at approx. 9.28 MW everyday just to boil water.

Typically one main water storage water tank is provided in high rise buildings with thousands of residents. The building owner or operator may opt for a voluntary scheme, operated by WSD, known as the Quality Water Recognition Scheme for Buildings (QWRSB). Of course, that requires interrupting the occupants water service to conduct the necessary maintenance and tank cleansing work.