PFAS in Ouanary's tap water: under 1.2 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 1.2 ng/L, 2.4 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.
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 0.3 ng/L upward. None reached that limit, so their total is below 1.2 ng/L rather than zero.
checked on 6 May 2026
19 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorododécanoique (PFDoDA) | <0,0003 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0003 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0003 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,010 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0003 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0003 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0003 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0003 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0003 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0003 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0003 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0003 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0003 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0003 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0003 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0003 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0003 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0003 µg/L |
Fails a current legal limit. The details are below.
Water report for Ouanary
Get new PFAS results for Ouanary, 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
- 6 May 2026
- Water supplier
- MAIRIE DE OUANARY
In Ouanary, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 6 May 2026. The total is below 1.2 ng/L, the sum of the detection limits and 2.4 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,0003 µg/L, below the EU legal limit (100 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Ouanary
A single PFAS check has been published for Ouanary so far (6 May 2026). A history will build up with the next checks; this page is refreshed weekly.
What the latest check found
At the latest check, the water was over at least one limit.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Coliform bacteria 3 n/(100mL) on 6 May 2026 (reference ≤ 0 mL)), pH 4.7 unité pH on 6 May 2026 (reference 6.5–9 unité pH), Electrical conductivity 22 µS/cm on 6 May 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Escherichia coli | 1 n/(100mL) | ≤ 0 mL) | over the limit |
| Enterococci | 4 n/(100mL) | ≤ 0 mL) | over the limit |
| Coliform bacteria | 3 n/(100mL) | ≤ 0 mL) | above the reference value |
| pH | 4.7 unité pH | 6.5–9 unité pH | below the reference value |
| Electrical conductivity | 22 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | <1 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,05 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <5 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.06 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <10 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <5 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,5 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <10 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | <0,05 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | <0,2 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | 1 n/(100mL) | ≤ 0 mL) | over the limit |
| Enterococci | 4 n/(100mL) | ≤ 0 mL) | over the limit |
| Coliform bacteria | 3 n/(100mL) | ≤ 0 mL) | above the reference value |
| pH | 4.7 unité pH | 6.5–9 unité pH | below the reference value |
| Water hardness | <1,0 °f | no limit | for reference |
| Electrical conductivity | 22 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 3.66 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 1.22 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 1.88 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <50 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,5 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Ouanary safe to drink?
At the latest check, the water was over at least one limit. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Ouanary's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 0.3 ng/L. The EU limit is 100 ng/L, so this water is under 0.3 % of the limit. (below the EU limit)
Does the water in Ouanary 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 1.2 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.
How hard is the water in Ouanary?
The water hardness in Ouanary 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 12 September 2026.
Nearby communes
The closest to Ouanary 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=97314
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- OUANARY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.