21 cities covered · 0 with a PFAS result · 0 with a quantified value · 21 with no published PFAS result · PFAS-4 not published
Each municipality shows annual figures from Mattilsynet's register: for the largest active water supply system with analyses from the latest or the previous year, the year's median per parameter, the year's maximum alongside (and the minimum for pH); the other systems are listed with their residents. A value counts as a breach only when the waterworks reported a sample above the limit to the register; a maximum above the limit that the register did not count as a deviation is marked amber. PFAS is not yet published per system; the Sum-4 PFAS limit of 4 ng/L applies since 1 January 2026 and the first annual figures are due 15 February 2027.
By signing up, you ask for a first report and the new PFAS results for this city, with explanations. Kehita AI Oy processes your email address for this purpose only, on the basis of your consent. Email confirmation is required; you can unsubscribe at any time with the link in every message. No regular newsletter, no commercial offers, no sharing with third parties other than our sending providers. This service does not replace official instructions. Privacy notice
By signing up, you ask for a first report and the new PFAS results for this city, with explanations. Kehita AI Oy processes your email address for this purpose only, on the basis of your consent. Email confirmation is required; you can unsubscribe at any time with the link in every message. No regular newsletter, no commercial offers, no sharing with third parties other than our sending providers. This service does not replace official instructions. Privacy notice
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.