Decision support tool

System assessment

Questionnaire: Assessing drinking water treatment

This questionnaire guides you through an assessment of the efficiency of your drinking water treatment system in eliminating cyanotoxins. If the occurrence of cyanobacteria and/or their dissolved toxins in water can neither be avoided by catchment management nor by the abstraction strategy, drinking water treatment is your only barrier and assessing its efficiency in eliminating cyanotoxins is mandatory.
More information can be found at drinking water treatment.

Is pre-oxidation used?


Is flocculation and filtration used?


Is slow sand filtration used?


Is post-oxidation used?


Is activated carbon filtration applied?


Is powdered activated carbon dosing possible?


Are other techniques in place (e.g. membrane filtration)?