PFAS in Croze'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
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 Clairavaux, on the same distribution network as Croze (CROZE - CLAIRAVAUX). 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.
checked on 10 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,040 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0015 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0015 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0015 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0015 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,013 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,005 µg/L |
None found. The lab sees nothing below 13 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Croze
Get new PFAS results for Croze, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 10 June 2026
- Water supplier
- SIAEP DE LA HTE VALLEE DE LA CREUSE
In Croze, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 10 June 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: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Clairavaux, on the same network. 6 checks since 1 October 2025, sum of 20 PFAS always below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Croze
6 PFAS checks since 1 October 2025, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Croze. Samples come from 4 distribution networks. The trend refers to the network “CROZE - CLAIRAVAUX”.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at | Network |
|---|---|---|---|---|
| < 13 ng/L · calculated | < detection limit | Clairavaux | CROZE - CLAIRAVAUX | |
| < 44 ng/L · calculated | < detection limit | Saint-Quentin-la-Chabanne | ST QUENTIN CHERBAHUN+LE BOURG | |
| < 44 ng/L · calculated | < detection limit | Clairavaux | RIEUX - COUSSEIX | |
| < 44 ng/L · calculated | < detection limit | Clairavaux | CROZE - CLAIRAVAUX | |
| < 44 ng/L · calculated | < detection limit | Saint-Quentin-la-Chabanne | FELLETIN | |
| < 44 ng/L · calculated | < detection limit | Croze | FELLETIN |
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.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Coliform bacteria 7 n/(100mL) on 10 June 2026 (reference ≤ 0 mL)), pH 5.7 unité pH on 10 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 47 µS/cm on 10 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 | 7 n/(100mL) | ≤ 0 mL) | above the reference value |
| pH | 5.7 unité pH | 6.5–9 unité pH | below the reference value |
| Electrical conductivity | 47 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 6.8 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 | 7 n/(100mL) | ≤ 0 mL) | above the reference value |
| pH | 5.7 unité pH | 6.5–9 unité pH | below the reference value |
| Water hardness | <1 °f | no limit | for reference |
| Electrical conductivity | 47 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 3.8 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | <1 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 3.93 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 Croze safe to drink?
Yes. At the check on 10 June 2026, the tap water in Croze was within every limit tested. Outside a reference value: Coliform bacteria 7 n/(100mL) on 10 June 2026 (reference ≤ 0 mL)), pH 5.7 unité pH on 10 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 47 µS/cm on 10 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Les références de qualité, définies par le Code de la Santé Publique, ne sont pas satisfaites pour les paramètres pH, conductivité et coliformes totaux. Cette eau très peu minéralisée, corrosive pour les métaux, nécessite un traitement de neutralisation. De plus, la présence récurrente de bactéries coliformes doit motiver la mise en place d'une désinfection de l'eau avant distribution.”
How high are PFAS levels in Croze's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at –. The EU limit is 100 ng/L, so this water is at – of the limit. (below the EU limit)
Does the water in Croze 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 Croze'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 Croze?
The water hardness in Croze is 0 °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 Croze, so in principle the same water.
Nearby communes
The closest to Croze 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=23071
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- ST QUENTIN CHERBAHUN+LE BOURG, CROZE - CLAIRAVAUX, RIEUX - COUSSEIX, FELLETIN
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.