WHO Guidelines for drinking water

It speaks for itself that Holland Water is very committed to achieve the World Millennium Goals. This of course is very closely connected to the Guidelines on Drinking Water from the World Health Organisation.

 

 
 WHO Logo  Guidelines for drinking waterQuality 2006
Microbiological parameters  
Cryptosporidium  
Escherichia coli  
Enterococci  
(Entero) viruses  
Giardia  
Chemical parameters (mg/l)
Acrylamide 0,0005
antimony 0,02
arsenic 0,01
benzene 0,01
Benzoapyrene 0,0007
Boor 0,5
Bromate 0,01
Cadmium 0,003
Chrome 0,05
Cyanides (total) 0,07
1,2-Dichloroethane  
Epichlorohydrin 0,0004
Fluoride 1,5
copper 2
mercury 0,006
lead 0,01
nickel 0,07
Nitrate 50
nitrite 0,2
PAK’s (sum)  
PCB’s (individual)  
PCB’s (sum)  
Pesticides (individual)  
Pesticides (sum)  
selenium 0,01
Tetra- en trichlooretheen (som) 0,04 and 0,02 (ind.)
Trihalomethanes (sum)  
Vinyl chloride 0,0003
Indicators  
Aero monas (30oC)  
Ammonium  
Bacteria of the coli group  
Bacteriophages  
Chloride 250
Clostridium perfringens (including spores)  
DOC/TOC  
conductance (at 20oC)  
Hardness (total)  
Colony Number at 22oC  
Radioactivity  
Total α Total β TritiumIndicative dose (total)  
Saturation Index (SI)  
Temperature  
Hydrogen Carbonate  
acidity / hydrogen ion-concentration  
oxygen  
Indicators – Organoleptic / esthetical parameters  
Aluminium 0,2 or 0,1 mg/l
Scent  
Colour  
Iron  
manganese  
sodium  
Taste  
Sulphide  
Turbidity  
Zinc  
Indicators – Signalling parameters *  
AOX  
Aromatic amines  
(Chlorine) phenols  
Monocyclic halogenated hydrocarbons  
Alfatische halogenated hydrocarbons  
Monocyclic hydrocarbons/aromatics