PFAS in Saint-Oradoux-de-Chirouze's tap water: under 13 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 < 13 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 13 ng/L, 26 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 Saint-Martial-le-Vieux, on the same distribution network as Saint-Oradoux-de-Chirouze (ST ORADOUX LES MOTTES). 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 1.5 to 5 ng/L upward. None reached that limit, so their total is below 13 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoroheptanoïque (PFHPA) <0,040 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,0015 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,0015 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,0015 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,005 µg/L
Acide perfluoro-decanoïque (PFDA) <0,005 µg/L
Acide perfluorononane sulfonique (PFNS) <0,0015 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0015 µg/L
Acide perfluoropentanoïque (PFPEA) <0,005 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,005 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,0015 µg/L
Acide perfluoro-octanoïque (PFOA) <0,005 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,0015 µg/L
Acide perfluorododécanoique (PFDoDA) <0,0015 µg/L
Acide perfluorobutanoïque (PFBA) <0,0015 µg/L
Perfluorohexane sulfonate (PFHXS) <0,0015 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,0015 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,0015 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0015 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,005 µg/L

None found. The lab sees nothing below 13 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
16 March 2026
Water supplier
COMPAGNIE GENERALE DES EAUX

In Saint-Oradoux-de-Chirouze, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 16 March 2026. The total is below 13 ng/L, the sum of the detection limits and 26 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,0895 µg/L, below the EU legal limit (100 ng/L). Sampled in Saint-Martial-le-Vieux, on the same network. 4 checks since 21 October 2025, sum of 20 PFAS always below the detection limit (89.5 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: COMPAGNIE GENERALE DES EAUX Latest water check: 15 June 2026 Data updated on

PFAS over time in Saint-Oradoux-de-Chirouze

4 PFAS checks since 21 October 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Saint-Oradoux-de-Chirouze. Samples come from 3 distribution networks. The trend refers to the network “ST ORADOUX LES MOTTES”.

“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
< 13 ng/L · calculated< 89.5 ng/LSaint-Martial-le-VieuxST ORADOUX LES MOTTES
< 6 ng/L · calculated< detection limitSaint-Oradoux-de-ChirouzeST ORADOUX DE CHIROUZE
< 6 ng/L · calculated< detection limitSaint-Oradoux-de-ChirouzeST ORADOUX LES MOTTES
< 6 ng/L · calculated< detection limitSaint-Oradoux-de-ChirouzeST MERD LA BREUILLE

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 1 n/(100mL) on 15 June 2026 (reference ≤ 0 mL)), pH 6.3 unité pH on 9 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 160 µS/cm on 9 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Coliform bacteria 1 n/(100mL) ≤ 0 mL) above the reference value
pH 6.3 unité pH 6.5–9 unité pH below the reference value
Electrical conductivity 160 µS/cm 200–1,100 µS/cm below the reference value
See all 17 test results
What was tested Value Limit Status
Nitrate 7.4 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Arsenic <1,00 µg/L ≤ 10 µg/L within the limit
Cadmium <1,00 µg/L ≤ 5 µg/L within the limit
Chromium <1,00 µg/L ≤ 50 µg/L within the limit
Fluoride <0,05 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) above the reference value
pH 6.3 unité pH 6.5–9 unité pH below the reference value
Water hardness 3.6 °f no limit for reference
Electrical conductivity 160 µS/cm 200–1,100 µS/cm below the reference value
Chloride 37.1 mg/L ≤ 250 mg/L within the limit
Sulphate <1 mg/L ≤ 250 mg/L within the limit
Sodium 3 mg/L ≤ 200 mg/L within the limit
Iron <10,0 µg/L ≤ 200 µg/L within the limit
Turbidity <0,3 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Saint-Oradoux-de-Chirouze safe to drink?

Yes. At the check on 15 June 2026, the tap water in Saint-Oradoux-de-Chirouze was within every limit tested. Outside a reference value: Coliform bacteria 1 n/(100mL) on 15 June 2026 (reference ≤ 0 mL)), pH 6.3 unité pH on 9 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 160 µS/cm on 9 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Les résultats de cette contre-analyse mettent en évidence la persistance d'une contamination bactériologique sur cette desserte. La présence de ces bactéries nécessite une amélioration du système de désinfection.”

How high are PFAS levels in Saint-Oradoux-de-Chirouze's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 89.5 ng/L. The EU limit is 100 ng/L, so this water is under 89 % of the limit. (below the EU limit)

Does the water in Saint-Oradoux-de-Chirouze 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 13 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 Saint-Oradoux-de-Chirouze'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 Saint-Oradoux-de-Chirouze?

The water hardness in Saint-Oradoux-de-Chirouze is 3.6 °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 12 September 2026.

Same water network

Same distribution network as Saint-Oradoux-de-Chirouze, so in principle the same water.

Nearby communes

The closest to Saint-Oradoux-de-Chirouze 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=23224
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
ST MERD LA BREUILLE, ST ORADOUX LES MOTTES, ST ORADOUX DE CHIROUZE

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