PFAS in L'Hôpital-Saint-Blaise's tap water: under 17 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 17 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 17 ng/L, 34 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 Mauléon-Licharre, on the same distribution network as L'Hôpital-Saint-Blaise (SOULE - MAULEON). 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 2 to 5 ng/L upward. None reached that limit, so their total is below 17 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluorohexanoïque (PFHXA) <0,005 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,005 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,005 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,005 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,005 µg/L
Acide perfluorononane sulfonique (PFNS) <0,005 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,002 µg/L
Acide perfluorododécanoique (PFDoDA) <0,005 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,005 µg/L
Acide perfluoropentanoïque (PFPEA) <0,005 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Perfluorohexane sulfonate (PFHXS) <0,002 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,005 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,005 µg/L
Acide perfluoro-octanoïque (PFOA) <0,005 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,005 µg/L
Acide perfluorobutanoïque (PFBA) <0,02 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,005 µg/L

None found. The lab sees nothing below 17 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
8 April 2026
Water supplier
SAUR FRANCE

In L'Hôpital-Saint-Blaise, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 8 April 2026. The total is below 17 ng/L, the sum of the detection limits and 34 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,1 µg/L, below the EU legal limit (100 ng/L). Sampled in Mauléon-Licharre, on the same network. 5 checks since 12 June 2025, sum of 20 PFAS always below the detection limit (100 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SAUR FRANCE Latest water check: 22 July 2026 Data updated on

PFAS over time in L'Hôpital-Saint-Blaise

5 PFAS checks since 12 June 2025, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to L'Hôpital-Saint-Blaise. Samples come from 2 distribution networks. The trend refers to the network “SOULE - MAULEON”.

“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 atNetwork
< 17 ng/L · calculated< 100 ng/LMauléon-LicharreSOULE - MAULEON
< 17 ng/L · calculated< 100 ng/LNavarrenxL'HOPITAL SAINT BLAISE
< 17 ng/L · calculated< 100 ng/LChérauteSOULE - MAULEON
< 17 ng/L · calculated< 100 ng/LNavarrenxL'HOPITAL SAINT BLAISE
< 17 ng/L · calculated< 100 ng/LMauléon-LicharreSOULE - MAULEON

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: Coliform bacteria 2 n/(100mL) on 22 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Coliform bacteria 2 n/(100mL) ≤ 0 mL) above the reference value
See all 17 test results
What was tested Value Limit Status
Nitrate 4 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <0,25 µg/L ≤ 10 µg/L within the limit
Copper 0.01 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <1 µg/L ≤ 20 µg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium <0,5 µg/L ≤ 50 µg/L within the limit
Escherichia coli 0 n/(100mL) ≤ 0 mL) within the limit
Enterococci 0 n/(100mL) ≤ 0 mL) within the limit
Coliform bacteria 2 n/(100mL) ≤ 0 mL) above the reference value
pH 8.2 unité pH 6.5–9 unité pH within the limit
Water hardness 11.6 °f no limit for reference
Electrical conductivity 335 µS/cm 200–1,100 µS/cm within the limit
Chloride 5.9 mg/L ≤ 250 mg/L within the limit
Sulphate 33 mg/L ≤ 250 mg/L within the limit
Iron 110 µg/L ≤ 200 µg/L within the limit
Turbidity 0.801 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in L'Hôpital-Saint-Blaise safe to drink?

Yes. At the check on 22 July 2026, the tap water in L'Hôpital-Saint-Blaise was within every limit tested. Outside a reference value: Coliform bacteria 2 n/(100mL) on 22 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux limites de qualité. On constate cependant une température de l'eau élevée. On constate également la présence de bactéries coliformes, de spores et de bactéries sulfito-réductrices. Teneur en désinfectant (chlore) insuffisante.”

How high are PFAS levels in L'Hôpital-Saint-Blaise's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 100 ng/L. The EU limit is 100 ng/L, so this water is under 100 % of the limit. (below the EU limit)

Does the water in L'Hôpital-Saint-Blaise also meet the strictest limits in Europe?

The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 17 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

Are PFAS levels rising in L'Hôpital-Saint-Blaise's tap water?

Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.

How hard is the water in L'Hôpital-Saint-Blaise?

The water hardness in L'Hôpital-Saint-Blaise is 11.6 °f (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: 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 L'Hôpital-Saint-Blaise, so in principle the same water.

Nearby communes

The closest to L'Hôpital-Saint-Blaise 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=64264
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
SOULE - MAULEON, L'HOPITAL SAINT BLAISE

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