"> Enviro Labs Limited | Environmental Testing - Drinking Water Testing
Enviro Labs Limited | Environmental Testing - Drinking Water Testing
Drinking Water Testing
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              Environmental Testing Services

Drinking Water Testing

Water supplied by the Hong Kong Water Supplies Department is amongst the safest drinking water in the world. However, poor maintenance of the drinking water plumbing system may deteriorate the quality of tap water. In December 2015, WSD has launched the “Quality Water Supply Scheme for Buildings – Fresh Water (Plus)” to assist building owners or building management agents to monitor and maintain the water supplies systems.

The table below shows the acceptable limits of the water quality indicators adopted by the Scheme.

 

Parameters Acceptable Limits
pH 6.5 – 9.2
Color ≦15 TCU (HU)
Conductivity ≦300 µS/cm
Turbidity ≦ 3 NTU
Iron ≦ 0.30 mg/L
Total Coliform Not Detected in 100mL sample
E. coli Not Detected in 100mL sample
Lead ≦10 µg/L
Cadmium ≦3 µg/L
Chromium ≦50 µg/L
Nickel ≦70 µg/L

Enviro Labs Ltd. (ELL) is registered as a HOKLAS accredited laboratory (HOKLAS 128) and ALL the parameters listed by the Scheme are HOKLAS accredited.

However, in order to strengthen the management on water quality, the Water Supplies Department (WSD) has launched a new voluntary scheme “Quality Water Supply Scheme for Buildings – Fresh Water (Management System)” (QMS) by integrating Water Safety Plan for Buildings (WSPB) with the existing “Quality Water Supply Scheme for Buildings – Fresh Water (Plus)” (Q-Plus) on 6 November 2017. Q-plus encompass the identification of potential contamination risks in internal plumbing systems and the formulation of corresponding control measures to safeguard the quality of drinking water.