•National
water quality monitoring network functioning from 1992, earlier study-based
•From
2002 the network revised, according to requirements of ND
•Level
– comparable data available from 1980-s in Adavere, much earlier periods in Pandivere
•Production
level (intensity) below half (< 0,5 LU/ha), total nitrogen below normatives, but vulnerable and dangerous if/when production level will be restored
•Nitrate
levels depending on water quantities, difficult to make deeper conclusions from figures depending more
on weather than agriculture