PFAS in Argentan's tap water: 13.8 ng/L, 27.6x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
27.6× above our health benchmark
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.
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 97% of the cities we track
checked on 4 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.0079 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.0049 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0042 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.0032 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.0027 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.0015 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0012 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | 0.0011 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 26.7 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 4 June 2026
- Water supplier
- CEO - ARGENTAN
In Argentan, the 4 most closely watched PFAS (PFAS-4) add up to 13.8 ng/L (0.0138 µg/L) at the latest PFAS check on 4 June 2026. That's 27.6 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 26.7 ng/L (0.0267 µg/L), below the EU legal limit (100 ng/L). 10 checks since 25 March 2025: sum of 20 PFAS up to 30.7 ng/L, sometimes 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 Argentan
10 PFAS checks since 25 March 2025, from the published measurements. Samples from 4 communes on the same network: it's the same water, so each one applies to Argentan. Samples come from 6 distribution networks. The trend refers to the network “ARGENTAN SO-SARCEAUX-FONTENAI”.
“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 |
|---|---|---|---|---|
| 13.8 ng/L – < 14.8 ng/L · calculated | 26.7 ng/L | Argentan | ARGENTAN ST ROCH, ARGENTAN VILLE | |
| 17.1 ng/L – < 18.1 ng/L · calculated | 30.7 ng/L | Argentan | ARGENTAN VILLE | |
| < 4 ng/L · calculated | < detection limit | Sarceaux | ARGENTAN SO-SARCEAUX-FONTENAI, ARGENTAN VILLE | |
| < 4 ng/L · calculated | < detection limit | Argentan | CENTRE DE DETENTION ARGENTAN | |
| < 4 ng/L · calculated | < detection limit | Argentan | ARGENTAN SO-SARCEAUX-FONTENAI | |
| 9 ng/L – < 10 ng/L · calculated | 16 ng/L | Sévigny | ZD PARQUETS | |
| < 4 ng/L · calculated | < detection limit | Sai | ZD JUVIGNY F1 | |
| < 6 ng/L · calculated | < detection limit | Sévigny | ZD PARQUETS | |
| < 6 ng/L · calculated | < detection limit | Argentan | ARGENTAN SO-SARCEAUX-FONTENAI | |
| < 6 ng/L · calculated | < detection limit | Sai | CENTRE DE DETENTION ARGENTAN |
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.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 29 mg/L | ≤ 50 mg/L | within the limit |
See all 18 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 29 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | <0,25 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,025 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1,0 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | 0.93 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.081 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | ILLISIBL n/(100mL) | ≤ 0 mL) | no verdict |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | ILLISIBL n/(100mL) | ≤ 0 mL) | no verdict |
| pH | 7.4 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 37.6 °f | no limit | for reference |
| Electrical conductivity | 750 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 28 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 47 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 13 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 13 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,20 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Argentan safe to drink?
Yes. At the check on 28 July 2026, the tap water in Argentan was within every limit tested. “Eau conforme aux limites et références de qualité physico-chimique en vigueur pour les paramètres recherchés. En ce qui concerne la qualité bactériologique, le dénombrement des coliformes totaux et des Escherichia Coli est rendu impossible par le nombre élevé de germes aérobies. Un renforcement de la désinfection ainsi que la réalisation de purges douces sans à-coup doivent être mis en place. Le prélèvement réalisé le 03/08/2026 était conforme aux exigences de qualité en vigueur. L'eau peut être consommée par tous.”
How high are PFAS levels in Argentan's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 26.7 ng/L. The EU limit is 100 ng/L, so this water is at 27 % of the limit. (below the EU limit)
Does the water in Argentan also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 13.8 ng/L. That is 3.5 times Sweden's legal limit of 4 ng/L, in force since 2026. Germany will set a similar one in 2028. The water still passes the current EU legal limit (100 ng/L for the total of 20 PFAS).
Are PFAS levels rising in Argentan'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 Argentan?
The water hardness in Argentan is 37.6 °f (hard). 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 Argentan, so in principle the same water.
Nearby communes
The closest to Argentan 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=61006
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- ARGENTAN ST ROCH, ZD PARQUETS, ARGENTAN SO-SARCEAUX-FONTENAI, ARGENTAN VILLE, ZD JUVIGNY F1, CENTRE DE DETENTION ARGENTAN
Water report for Argentan
Get new PFAS results for Argentan, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.