PFAS in Ranville's tap water: 3.7 ng/L, 7.4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
7.4× 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.
Sample taken in Bavent, on the same distribution network as Ranville (RESEAU HAUT RDO). 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.
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 90% of the cities we track
checked on 3 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.0037 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0015 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.0013 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0010 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0010 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 6.5 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 3 June 2026
- Water supplier
- SAUR CENTRE NORMANDIE
In Ranville, the 4 most closely watched PFAS (PFAS-4) add up to 3.7 ng/L (0.0037 µg/L) at the latest PFAS check on 3 June 2026. That's 7.4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 6.5 ng/L (0.0065 µg/L), below the EU legal limit (100 ng/L). Sampled in Bavent, on the same network. 7 checks since 4 March 2025: sum of 20 PFAS up to 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 Ranville
7 PFAS checks since 4 March 2025, from the published measurements. Samples from 4 communes on the same network: it's the same water, so each one applies to Ranville. Samples come from 3 distribution networks. The trend refers to the network “ZONE COTIERE”.
“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 |
|---|---|---|---|---|
| 3.7 ng/L – < 6.7 ng/L · calculated | 6.5 ng/L | Bavent | RESEAU HAUT RDO | |
| 3.5 ng/L – < 6.5 ng/L · calculated | 6.8 ng/L | Merville-Franceville-Plage | ZONE COTIERE | |
| 2.8 ng/L – < 5.8 ng/L · calculated | 5.9 ng/L | Bréville-les-Monts | ZONE COTIERE | |
| 2 ng/L – < 5 ng/L · calculated | 3 ng/L | Bréville-les-Monts | RESEAU HAUT RDO | |
| 2.2 ng/L – < 5.2 ng/L · calculated | 7 ng/L | Ranville | PEGASUS IMPASSE | |
| 2.5 ng/L – < 5.5 ng/L · calculated | 5 ng/L | Bréville-les-Monts | ZONE COTIERE | |
| < 6 ng/L · calculated | < detection limit | Bréville-les-Monts | ZONE COTIERE |
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: Electrical conductivity 1,104 µS/cm on 7 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Electrical conductivity | 1,104 µS/cm | 200–1,100 µS/cm | above the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8.07 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.25 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.0085 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <2,0 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 0.78 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,10 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,50 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.54 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 | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 42.7 °f | no limit | for reference |
| Electrical conductivity | 1,104 µS/cm | 200–1,100 µS/cm | above the reference value |
| Chloride | 87.9 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 93.3 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 38.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <20 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,10 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Ranville safe to drink?
Yes. At the check on 7 July 2026, the tap water in Ranville was within every limit tested. Outside a reference value: Electrical conductivity 1,104 µS/cm on 7 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “L'eau était, au moment du prélèvement, conforme aux normes bactériolog iques fixées par la réglementation. Par contre, sur le plan chimique, il convient de noter une valeur de conductivité supérieure à la référe nce de qualité maximum de 1100 µS/cm.”
How high are PFAS levels in Ranville's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 6.5 ng/L. The EU limit is 100 ng/L, so this water is at 6 % of the limit. (below the EU limit)
Does the water in Ranville also meet the strictest limits in Europe?
Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 3.7 ng/L stays below.
Are PFAS levels rising in Ranville'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 Ranville?
The water hardness in Ranville is 42.7 °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 Ranville, so in principle the same water.
Nearby communes
The closest to Ranville 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=14530
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- RESEAU HAUT RDO, ZONE COTIERE, PEGASUS IMPASSE
Water report for Ranville
Get new PFAS results for Ranville, 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.