PFAS in Isokyrö's tap water: 0.2 ng/L for the sum of 20 PFAS, below the 100 ng/L legal limit

Last PFAS check: · Source: Ruokavirasto / Syke

PFAS in drinking water

0.2 % of the EU legal limit for 20 PFAS

Amount found in the water 0.2 ng/L 0.0002 µg/L · sum of 20 PFAS · sampled 5 March 2026

PFAS-4 not published here yet

More about this result

PFAS-4 is not published for this supply area

Sum of 20 PFAS: 0.2 ng/L (0.0002 µg/L), 0.2 % of the 100 ng/L legal limit, sampled 5 March 2026.

Values from Isonkyrön vesihuoltolaitos, one of 2 supply areas serving Isokyrö; the others are in the table.

The four EFSA compounds (PFOA, PFOS, PFNA, PFHxS) are not reported separately, so the 4 ng/L health benchmark and this site's 0.5 ng/L benchmark cannot be checked.

PFAS-20 monitoring is mandatory since 12 January 2026; 158 of 287 municipalities have a published result so far.

Within the legal limit. This source does not report the four main PFAS separately.

Last PFAS test
5 March 2026
Water supplier
Isonkyrön kunta, Lehmäjoen Vesihuolto Oy

In Isokyrö, the latest published PFAS-20 result is 0.2 ng/L (0.0002 µg/L), below the EU legal limit of 100 ng/L, sampled 5 March 2026. The four EFSA compounds (PFAS-4) are not itemised, so this water cannot be compared with the 0.5 ng/L health benchmark used by pfasnearme. Source: Ruokavirasto (VATI) / Suomen ympäristökeskus Syke, Juomavesidirektiivi-rajapinta, CC BY 4.0, data retrieved 28 September 2026.

Details and sources
Water supplier: Isonkyrön kunta, Lehmäjoen Vesihuolto Oy Latest water check: 11 August 2026 Data updated on

What the latest check found

The authorities have not published an overall verdict for this water.

Values to watch

These results are close to their legal limit, or over it.

One routine sample was outside a limit: Iron 1,100 µg/L on 23 March 2026 (limit ≤ 200 µg/L), Oxidisability (permanganate index) 17 mg O2/L on 13 January 2021 (limit ≤ 5 mg O2/L). This is a single result, not an official verdict on the supply.

What was tested Value Limit Status
Iron 1,100 µg/L ≤ 200 µg/L over the limit
Oxidisability (permanganate index) 17 mg O2/L ≤ 5 mg O2/L over the limit
See all 25 test results
What was tested Value Limit Status
Nitrate <1 mg/L ≤ 50 mg/L within the limit
Nitrite <0.01 mg/L ≤ 0.5 mg/L within the limit
Lead <0.02 µg/L ≤ 10 µg/L within the limit
Copper 0.0011 mg/L ≤ 2 mg/L within the limit
Nickel <2 µg/L ≤ 20 µg/L within the limit
Arsenic 0.099 µg/L ≤ 10 µg/L within the limit
Cadmium 0.016 µg/L ≤ 5 µg/L within the limit
Chromium 0.086 µg/L ≤ 50 µg/L within the limit
Uranium <2 µg/L ≤ 30 µg/L within the limit
Fluoride <0.1 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli 0 n/(100mL) ≤ 0 n/(100mL) within the limit
Enterococci 0 n/(100mL) ≤ 0 n/(100mL) within the limit
Coliform bacteria 0 n/(100mL) ≤ 0 n/(100mL) within the limit
pH 8.2 6.5–9.5 pH within the limit
Water hardness 0.4 mmol/L no limit for reference
Electrical conductivity 120 µS/cm ≤ 2,500 µS/cm within the limit
Chloride 1.8 mg/L ≤ 250 mg/L within the limit
Sulphate 9.6 mg/L ≤ 250 mg/L within the limit
Sodium 3.2 mg/L ≤ 200 mg/L within the limit
Iron 1,100 µg/L ≤ 200 µg/L over the limit
Manganese 17 µg/L ≤ 50 µg/L within the limit
Aluminium 56 µg/L ≤ 200 µg/L within the limit
Ammonium <0.01 mg/L ≤ 0.5 mg/L within the limit
Oxidisability (permanganate index) 17 mg O2/L ≤ 5 mg O2/L over the limit
Calcium 5.9 mg/L no limit for reference

Frequently asked questions

Is tap water in Isokyrö safe to drink?

The authorities have not published an overall verdict for this water. One routine sample was outside a limit: Iron 1,100 µg/L on 23 March 2026 (limit ≤ 200 µg/L), Oxidisability (permanganate index) 17 mg O2/L on 13 January 2021 (limit ≤ 5 mg O2/L). This is a single result, not an official verdict on the supply. The four EFSA compounds (PFAS-4) are not itemised, so this water cannot be compared with the 0.5 ng/L health benchmark used by pfasnearme.

How high are PFAS levels in Isokyrö's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 0.2 ng/L. The EU limit is 100 ng/L, so this water is at 0.2 % of the limit. (below the EU limit)

Which PFAS limits apply in Finland?

Finland applies decree STM 1352/2015 of the Ministry of Social Affairs and Health as amended by 2/2023: "PFAS-aineiden summa" (sum of 20 PFAS) at most 0.10 µg/l, that is 100 ng/L, applied from 12 January 2026. There is no national PFAS-4 limit; Sweden applies 4 ng/L. This site's 0.5 ng/L benchmark is stricter than both.

How hard is the water in Isokyrö?

The water hardness in Isokyrö is 0.4 mmol/L (soft). This mainly matters for household appliances and detergent dosing, not for health.

Where does this data come from?

All values come from official publications: Ruokavirasto (VATI) / Suomen ympäristökeskus Syke, Juomavesidirektiivi-rajapinta. Retrieved on 28 September 2026.

Nearby cities

The closest to Isokyrö on this site.

Data source

Ruokavirasto (VATI) / Suomen ympäristökeskus Syke, Juomavesidirektiivi-rajapinta
https://rajapinnat.ymparisto.fi/api/juomavesidirektiivi-vati/swagger/v1/swagger.json
License
CC BY 4.0
Retrieved
28 September 2026
Supply networks
Isonkyrön vesihuoltolaitos, Lehmäjoen Vesihuolto Oy

Lähde: Ruokavirasto (VATI) / Suomen ympäristökeskus Syke, Juomavesidirektiivi-rajapinta, CC BY 4.0, haettu 2026-09-28. Kunnassa on 2 vedenjakelualuetta VATI-rekisterissä; kaikki on lueteltu sivulla. Sivun PFAS-luku on alueelta "Isonkyrön vesihuoltolaitos" (korkein mitattu PFAS-yhdisteiden summa kunnan 1 PFAS-tuloksesta); muut alueet ovat taulukossa. PFAS-yhdisteiden summan (20 yhdistettä) raja-arvo on 0,10 µg/l (STM 1352/2015, muutos 2/2023, sovellettu 12.1.2026 alkaen). Neljän EFSA-yhdisteen summaa (PFAS-4) ei julkaista. Rajapinta julkaisee kunkin muuttujan uusimman tuloksen; taulukon arvo on korkein kunnan alueilta viimeisten 24 kuukauden aikana julkaistu tulos (vanhempi tulos vain, jos uudempaa ei ole), alue on merkitty riville.

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.