"> Enviro Labs Limited | Environmental Testing - Newly Installed Fresh Water Inside Service
Enviro Labs Limited | Environmental Testing - Newly Installed Fresh Water Inside Service
Newly Installed Fresh Water Inside Service
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              Environmental Testing Services

Newly Installed Fresh Water Inside Service

After repair or maintenance of fresh water inside service, water testing is required. In order to make sure the consumers could enjoy drinking water with good quality even after repair and maintenance, test is required before WSD supplying water to you.

The table below shows that the acceptable limits of the water quality indicators adopted by either WSD Circular Letter No. 9/2017 or WSD Circular Letter No. 10/2017 Scheme.

Test Parameter Acceptance Criteria
pH 6.5-9.2
Turbidity (NTU) ≤3.0
Colour (HU) ≤5
Conductivity (at 25°C) (µS/cm) ≤300
Free Residual Chlorine (mg/L) >0 and ≤1.5
E. coli (cfu/100mL) 0
Heterotrophic plate count (cfu/mL) ≤20
Lead (ppb) ≤10
Cadmium (ppb) ≤3
Chromium (ppb) ≤50
Nickel (ppb) ≤70
Copper (ppb) ≤2000
Antimony (ppb) ≤20