PFAS in Sainte-Blandine's tap water: 2 ng/L, 4x our 0.5 ng/L benchmark

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

4× above our health benchmark

Amount found in the water 2 ng/L 0.002 µg/L · the 4 most harmful PFAS (PFAS-4)
Our health benchmark 0.5 ng/L

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 Saint-Didier-de-la-Tour, on the same distribution network as Sainte-Blandine (SAINT ONDRAS). 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.

Substances below the detection limit count as 0, so the real total may be higher.

One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).

More PFAS than in 85% of the cities we track

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.006 µg/L
Acide perfluorohexanoïque (PFHXA) 0.003 µg/L
Acide perfluorobutanoïque (PFBA) 0.002 µg/L
Acide sulfonique de perfluorooctane (PFOS) 0.002 µg/L
Acide perfluoroheptanoïque (PFHPA) 0.001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L

Above our health benchmark. Here are some filter options.

EU legal limit
14 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
8 April 2026
Water supplier
CC LES VALS DU DAUPHINÉ

In Sainte-Blandine, the 4 most closely watched PFAS (PFAS-4) add up to 2 ng/L (0.002 µg/L) at the latest PFAS check on 8 April 2026. That's 4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 14 ng/L (0.014 µg/L), below the EU legal limit (100 ng/L). Sampled in Saint-Didier-de-la-Tour, on the same network. 2 checks since 16 October 2025: PFAS-4 from 2 ng/L to 4 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: CC LES VALS DU DAUPHINÉ Latest water check: 23 July 2026 Data updated on

PFAS over time in Sainte-Blandine

3 PFAS checks since 26 May 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Sainte-Blandine.

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

0.5 ng/L4 ng/L016 October 20258 April 2026
PFAS-4 sum per check in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: below the detection limit.
DatePFAS-4Sum of 20 PFASSampled at
2 ng/L14 ng/LSaint-Didier-de-la-Tour
4 ng/L18 ng/LSaint-Ondras
2 ng/L – < 5 ng/L · calculated18 ng/LSaint-Ondras

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
See all 16 test results
What was tested Value Limit Status
Nitrate 16.2 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper 0.037 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/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 7.25 unité pH 6.5–9 unité pH within the limit
Water hardness 29.61 °f no limit for reference
Electrical conductivity 576 µS/cm 200–1,100 µS/cm within the limit
Chloride 7.4 mg/L ≤ 250 mg/L within the limit
Sulphate 10.3 mg/L ≤ 250 mg/L within the limit
Turbidity 0.12 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Sainte-Blandine safe to drink?

Yes. At the check on 23 July 2026, the tap water in Sainte-Blandine was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Sainte-Blandine's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 14 ng/L. The EU limit is 100 ng/L, so this water is at 14 % of the limit. (below the EU limit)

Does the water in Sainte-Blandine also meet the strictest limits in Europe?

Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 2 ng/L stays below.

Are PFAS levels rising in Sainte-Blandine's tap water?

Too few quantified checks to say (2 since 26 May 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 Sainte-Blandine?

The water hardness in Sainte-Blandine is 29.6 °f (medium). 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.

Same water network

Same distribution network as Sainte-Blandine, so in principle the same water.

Nearby communes

The closest to Sainte-Blandine 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=38369
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
SAINT ONDRAS

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