PFAS in the tap water of Malans (Doubs): under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 1 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.

0.5 ng/L is our benchmark, not an official limit. Same EFSA method as Sweden, Denmark and the Netherlands, but stricter. It's a yearly average, compared here with the latest check.

Sample taken in Lods, on the same distribution network as Malans (SIEPA MALANS). The health authority samples one tap per network; a network carries the same treated water everywhere.

More about this result

The US also limits PFOA and PFOS to 4 ng/L each, per substance.

The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
1 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
27 October 2025
Water supplier
SYNDICAT DES EAUX DU PLATEAU D'AMANCEY

In Malans, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 27 October 2025. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 1 ng/L (0.001 µg/L), below the EU legal limit (100 ng/L). Sampled in Lods, on the same network. 2 checks since 25 June 2025, PFAS-4 always below the detection limit (4 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SYNDICAT DES EAUX DU PLATEAU D'AMANCEY Latest water check: 21 July 2026 Data updated on

PFAS over time in Malans

3 PFAS checks since 18 February 2025, from the published measurements.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

DatePFAS-4Sum of 20 PFASSampled at
< 4 ng/L1 ng/LLods
< 20 ng/L< 28 ng/LLods
< 4 ng/L · calculated< 100 ng/LLods

Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. How to read a PFAS result

What the latest check found

At the latest check, the water was within every limit tested.

Microbiology: within the limit Chemistry: within the limit

Values to watch

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

Outside a reference value: Turbidity 4.2 NFU on 21 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Turbidity 4.2 NFU ≤ 2 NFU above the reference value
See all 19 test results
What was tested Value Limit Status
Nitrate 3.8 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.1 mg/L within the limit
Lead <1 µg/L ≤ 10 µg/L within the limit
Copper 0.0259 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel 1.1 µg/L ≤ 20 µg/L within the limit
Arsenic <1 µg/L ≤ 10 µg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium 1.8 µg/L ≤ 50 µg/L within the limit
Fluoride 0.07 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli <1 n/(100mL) ≤ 0 mL) within the limit
Enterococci <1 n/(100mL) ≤ 0 mL) within the limit
Coliform bacteria <1 n/(100mL) ≤ 0 mL) within the limit
pH 7.9 unité pH 6.5–9 unité pH within the limit
Water hardness 36.9 °f no limit for reference
Electrical conductivity 615 µS/cm 200–1,100 µS/cm within the limit
Chloride 1.5 mg/L ≤ 250 mg/L within the limit
Sulphate 3.5 mg/L ≤ 250 mg/L within the limit
Sodium 0.814 mg/L ≤ 200 mg/L within the limit
Turbidity 4.2 NFU ≤ 2 NFU above the reference value

Frequently asked questions

Is tap water in Malans safe to drink?

Yes. At the check on 21 July 2026, the tap water in Malans was within every limit tested. Outside a reference value: Turbidity 4.2 NFU on 21 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits. “EAU NON CONFORME (code de la santé publique). L'eau prélevée ne respec te pas les exigences de qualité physico-chimique en raison de la turbi dité, ce qui entraîne des désagréments pour les usagers et renforce le risque de contamination microbiologique.”

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

The total of 20 PFAS ("forever chemicals") was last measured at 1 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)

Does the water in Malans also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Malans's tap water?

Too few quantified checks to say (0 since 18 February 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.

How hard is the water in Malans?

The water hardness in Malans is 36.9 °f (hard). This mainly matters for household appliances and detergent dosing, not for health.

Where does this data come from?

All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 21 September 2026.

Nearby communes

The closest to Malans on this site.

Data source

Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM)
https://hubeau.eaufrance.fr/api/v1/qualite_eau_potable/resultats_dis?code_commune=25359
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
SIEPA MALANS, SIEPA MALANS HAMEAU DU VAL STE MARIE

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