PFAS in Hollola's tap water: 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

2 % of the EU legal limit for 20 PFAS

Amount found in the water 2 ng/L 0.002 µg/L · sum of 20 PFAS · sampled 25 February 2025

PFAS-4 not published here yet

More about this result

PFAS-4 is not published for this supply area

Sum of 20 PFAS: 2 ng/L (0.002 µg/L), 2 % of the 100 ng/L legal limit, sampled 25 February 2025.

Values from Talousveden jakelualue Sairakkala, Hollolan vesihuoltolaitos, one of 5 supply areas serving Hollola; 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
25 February 2025
Water supplier
Hollolan kunta, Messilä Maailma Oy

In Hollola, the latest published PFAS-20 result is 2 ng/L (0.002 µg/L), below the EU legal limit of 100 ng/L, sampled 25 February 2025. 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: Hollolan kunta, Messilä Maailma Oy Latest water check: 18 August 2026 Data updated on

What the latest check found

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

See all 28 test results
What was tested Value Limit Status
Sum of 20 PFAS · Talousveden jakelualue Kirkonkylä Hämeenkoski, Hollolan vesihuoltolaitos · 22 January 2026 not quantified ≤ 0.1 µg/L within the limit
Sum of 20 PFAS · Talousveden jakelualue Kukkila, Hollolan vesihuoltolaitos · 18 August 2026 0.0004 µg/L ≤ 0.1 µg/L within the limit
Sum of 20 PFAS · Talousveden jakelualue Salpakangas, Hollolan vesihuoltolaitos · 21 January 2026 0.0007 µg/L ≤ 0.1 µg/L within the limit
Nitrate 4.5 mg/L ≤ 50 mg/L within the limit
Nitrite 0.014 mg/L ≤ 0.5 mg/L within the limit
Lead 0.58 µg/L ≤ 10 µg/L within the limit
Copper 0.032 mg/L ≤ 2 mg/L within the limit
Nickel 2.4 µg/L ≤ 20 µg/L within the limit
Arsenic 0.27 µg/L ≤ 10 µg/L within the limit
Cadmium <0.03 µg/L ≤ 5 µg/L within the limit
Chromium <0.5 µg/L ≤ 50 µg/L within the limit
Uranium 2.5 µg/L ≤ 30 µg/L within the limit
Fluoride 0.2 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli <1 n/(100mL) ≤ 0 n/(100mL) no verdict
Enterococci <1 n/(100mL) ≤ 0 n/(100mL) no verdict
Coliform bacteria <1 n/(100mL) ≤ 0 n/(100mL) no verdict
pH 7.3 6.5–9.5 pH within the limit
Water hardness 0.5 mmol/L no limit for reference
Electrical conductivity 191 µS/cm ≤ 2,500 µS/cm within the limit
Chloride 13 mg/L ≤ 250 mg/L within the limit
Sulphate 15 mg/L ≤ 250 mg/L within the limit
Sodium 15 mg/L ≤ 200 mg/L within the limit
Iron 35 µg/L ≤ 200 µg/L within the limit
Manganese 3.6 µg/L ≤ 50 µg/L within the limit
Aluminium <5 µg/L ≤ 200 µg/L within the limit
Ammonium 0.017 mg/L ≤ 0.5 mg/L within the limit
Oxidisability (permanganate index) 0.8 mg O2/L ≤ 5 mg O2/L within the limit
Calcium 12 mg/L no limit for reference

Frequently asked questions

Is tap water in Hollola safe to drink?

All the values shown here (18 August 2026) are within the legal limits, but the authorities have not published an overall verdict for this water. 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 Hollola's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 2 ng/L. The EU limit is 100 ng/L, so this water is at 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 Hollola?

The water hardness in Hollola is 0.5 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 Hollola 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
Talousveden jakelualue Salpakangas, Hollolan vesihuoltolaitos, Talousveden jakelualue Kukkila, Hollolan vesihuoltolaitos, Talousveden jakelualue Kirkonkylä Hämeenkoski, Hollolan vesihuoltolaitos, Talousveden jakelualue Messilä, Talousveden jakelualue Sairakkala, Hollolan vesihuoltolaitos

Lähde: Ruokavirasto (VATI) / Suomen ympäristökeskus Syke, Juomavesidirektiivi-rajapinta, CC BY 4.0, haettu 2026-09-28. Kunnassa on 5 vedenjakelualuetta VATI-rekisterissä; kaikki on lueteltu sivulla. Sivun PFAS-luku on alueelta "Talousveden jakelualue Sairakkala, Hollolan vesihuoltolaitos" (korkein mitattu PFAS-yhdisteiden summa kunnan 4 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. Tulos "0" tai "Ei todettu" tarkoittaa, ettei PFAS-yhdisteitä havaittu; laboratorio ei ilmoittanut määritysrajaa. 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.