PFAS in the tap water of Caumont (Eure): 5.2 ng/L, 10.4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
10.4× 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 92% of the cities we track
checked on 15 May 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | 0.0081 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.0074 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0048 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.0038 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.0024 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.0015 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.0013 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0010 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 29.3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 15 May 2025
- Water supplier
- SERPN (ROUMOIS / PLATEAU NEUBOURG)
In Caumont, the 4 most closely watched PFAS (PFAS-4) add up to 5.2 ng/L (0.0052 µg/L) at the latest PFAS check on 15 May 2025. That's 10.4 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 29.3 ng/L (0.0293 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 Caumont
A single PFAS check has been published for Caumont so far (15 May 2025). 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 within every limit tested.
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 24.9 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <2,0 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.013 mg/L | ≤ 2 mg/L | within the limit |
| Nickel | <1 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <0,50 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,5 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <5 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.11 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) | within the limit |
| pH | 7.2 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 30.1 °f | no limit | for reference |
| Electrical conductivity | 586 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 27.4 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 7.33 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 11.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <5,0 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.31 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Caumont safe to drink?
Yes. At the check on 4 March 2026, the tap water in Caumont was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Caumont's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 29.3 ng/L. The EU limit is 100 ng/L, so this water is at 29 % of the limit. (below the EU limit)
Does the water in Caumont also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 5.2 ng/L. That is 1.3 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).
How hard is the water in Caumont?
The water hardness in Caumont is 30.1 °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 12 September 2026.
Same water network
Same distribution network as Caumont, so in principle the same water.
Nearby communes
The closest to Caumont 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=27133
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SAINT OUEN THOUBERVILLE
Water report for Caumont
Get new PFAS results for Caumont, 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.