Lithuania: water testing under hygiene standard HN 24
Safety and quality requirements for drinking water are set by the national hygiene standard HN 24:2023; water utilities run their continuous monitoring against it.
- The standard is the reference point for laboratories: it sets the indicators and values that appear in water test reports.
- Well and spring water testing covers, among others, Escherichia coli and intestinal enterococci per 100 ml, nitrates, nitrites, ammonia, permanganate index and electrical conductivity.
- Hot water has separate requirements — for a laboratory that means a different set of determinations and a different sampling frequency.