PFAS in Jullouville's tap water: under 4 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
None of the 4 most harmful PFAS detected
The lab sees nothing below 4 ng/L, 8 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 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.
checked on 30 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.0022 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.0016 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0011 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Jullouville
Get new PFAS results for Jullouville, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 4.9 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 30 June 2026
- Water supplier
- CEGA
In Jullouville, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 30 June 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 4.9 ng/L (0.0049 µg/L), below the EU legal limit (100 ng/L). 5 checks since 27 March 2025: sum of 20 PFAS from 1.4 ng/L to 4.9 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Jullouville
5 PFAS checks since 27 March 2025, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Jullouville. Samples come from 2 distribution networks. The trend refers to the network “BAIE DE SCISSY”.
“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 |
|---|---|---|---|---|
| < 4 ng/L · calculated | 4.9 ng/L | Jullouville | BAIE DE SCISSY | |
| < 4 ng/L · calculated | 3.6 ng/L | Saint-Jean-le-Thomas | CHAMPEAUX | |
| < 4 ng/L · calculated | 1.6 ng/L | Saint-Pair-sur-Mer | BAIE DE SCISSY | |
| < 4 ng/L · calculated | 1.4 ng/L | Saint-Pair-sur-Mer | CHAMPEAUX, BAIE DE SCISSY | |
| < 6 ng/L · calculated | 2.9 ng/L | Saint-Pair-sur-Mer | CHAMPEAUX, BAIE DE SCISSY |
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 1 n/(100mL) on 13 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Coliform bacteria | 1 n/(100mL) | ≤ 0 mL) | above the reference value |
See all 18 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 24.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 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 | <0,10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.065 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) | above the reference value |
| pH | 8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 14.1 °f | no limit | for reference |
| Electrical conductivity | 438 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 47 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 35 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 20.4 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 10.4 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.25 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Jullouville safe to drink?
Yes. At the check on 13 July 2026, the tap water in Jullouville was within every limit tested. Outside a reference value: Coliform bacteria 1 n/(100mL) on 13 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits. “L'eau distribuée respectait au moment du prélèvement les limites de qualité en vigueur. En revanche, un non respect de la valeur de référence fixée pour le paramètre bactéries coliformes a été observé. L'exploitant a été informé le 15/07/2026 des résultats rencontrés. Un nouveau prélèvement a été programmé afin de vérifier la qualité de l'eau distribuée.”
How high are PFAS levels in Jullouville's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 4.9 ng/L. The EU limit is 100 ng/L, so this water is at 5 % of the limit. (below the EU limit)
Does the water in Jullouville 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 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.
Are PFAS levels rising in Jullouville'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 Jullouville?
The water hardness in Jullouville is 14.1 °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 28 September 2026.
Same water network
Same distribution network as Jullouville, so in principle the same water.
Nearby communes
The closest to Jullouville 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=50066
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 September 2026
- Supply networks
- CHAMPEAUX, BAIE DE SCISSY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.