English Abstract This report gives a review of non-compliance of
drinking-water with quality regulations (waterleidingbesluit) in the
Netherlands in 1989. In this year samples were taken from 257 waterworks.
Compared with 1988, in 1989 more cases of non-compliance were found.
Reviewing the years 1986-1989 it appears that the initial decrement of the
number of deviations has not been continued.
