Laboratories in Islandwide
ISO 17025:2005 Accredited Laboratories
• Central Laboratory : Water Treatment Chemicals – Alum & Lime
• W/P Ambatale Laboratory : Water Treatment Chemicals – Alum & Lime
Water - Electrical Conductivity, pH, Turbidity
• Western South Laboratory : Water - pH, Turbidity, Electrical Conductivity, Chloride, Hardness,
Total Alkalinity,Total Iron , Fluoride , Sulphate, Free Ammonia
Microbiology – Total Coliform & E.coli
• Vavuniya Laboratory : Water - Electrical Conductivity, pH, Turbidity, Chloride, Hardness
• Jaffna Laboratory : Water - Electrical Conductivity, pH, Turbidity, Chloride, Hardness
Facilities available in NWS&DB laboratories
As Central Environmental Authority registered laboratories, Central laboratory and other Regional Laboratories are providing services for public by analyzing wastewater and also have facility to test other parameters as given bellow.
Laboratory network with contact details (Click Here..)
Bacteriological, Physical, Organoleptic, Chemical and Toxic Analysis
Bacteriological Analysis
- Total Coliform
- E. coli
- Total Plate Counts
Physical and Organoleptic requirements
• Color • Odour • Taste
• Turbidity • pH
Chemical requirements
| • Aluminium | • Free Ammonia | • Albuminoid Ammonia |
| • Anionic detergents | • Calcium | • Chloride |
| • Chemical Oxygen Demand (COD) | • Copper | • Fluoride |
| • Free residual chlorine | • Iron | • Magnesium |
| • Manganese | • Nitrate | • Nitrite |
| • Nickel | • Oil and grease | • Phenolic compounds |
| • Sodium | • Sulphate | • Total alkalinity |
| • Total dissolved solids | • Total hardness | • Total phosphate |
| • Zinc |
Toxic substances
• Arsenic • Cadmium • Cyanide
• Lead • Mercury • Selenium
• Chromium
Algal toxins
• Microcystins
• Cylindrospermopsin