PFAS in Mouroux's tap water: under 4 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 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.
Sample taken in Sammeron, on the same distribution network as Mouroux (SAINT AUGUSTIN - S2E 77). 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.
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 10 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 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 Mouroux
Get new PFAS results for Mouroux, 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
- 10 June 2026
- Water supplier
- SAUR CENTRE ILE DE FRANCE
In Mouroux, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 10 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: <0,029 µg/L, below the EU legal limit (100 ng/L). Sampled in Sammeron, on the same network. 6 checks since 11 February 2026, PFAS-4 always below the detection limit (4 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Mouroux
13 PFAS checks since 21 May 2025, from the published measurements. Samples from 5 communes on the same network: it's the same water, so each one applies to Mouroux. Samples come from 4 distribution networks. The trend refers to the network “SAINT AUGUSTIN - S2E 77”.
“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 | < 29 ng/L | Sammeron | SAINT AUGUSTIN - S2E 77 | |
| < 4 ng/L | < 29 ng/L | Hondevilliers | SAINT DENIS LES REBAIS - SE2 77 | |
| < 4 ng/L | < 29 ng/L | Doue | SAINT DENIS LES REBAIS - SE2 77 | |
| < 4 ng/L | < 29 ng/L | Coulommiers | MOUROUX A - S2E 77 | |
| < 4 ng/L | < 29 ng/L | Beautheil-Saints | MOUROUX B - S2E 77 | |
| < 4 ng/L | < 29 ng/L | Sammeron | SAINT AUGUSTIN - S2E 77 | |
| < 4 ng/L · calculated | < 29 ng/L | Beautheil-Saints | MOUROUX B - S2E 77 | |
| < 4 ng/L · calculated | < 29 ng/L | Hondevilliers | SAINT DENIS LES REBAIS - SE2 77 | |
| < 4 ng/L · calculated | < 29 ng/L | Sammeron | SAINT AUGUSTIN - S2E 77 | |
| < 4 ng/L · calculated | 8 ng/L | Coulommiers | MOUROUX A - S2E 77 | |
| < 4 ng/L · calculated | < 100 ng/L | Sammeron | SAINT AUGUSTIN - S2E 77 | |
| < 4 ng/L · calculated | < 100 ng/L | Coulommiers | MOUROUX A - S2E 77 |
Show the 1 earlier checks (back to 21 May 2025)
| < 4 ng/L · calculated | < 100 ng/L | Beautheil-Saints | MOUROUX B - S2E 77 |
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.
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 20.8 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <5 µg/L | ≤ 50 µg/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 | 7.88 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 25.2 °f | no limit | for reference |
| Electrical conductivity | 581 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 41.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 128 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.16 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Mouroux safe to drink?
Yes. At the check on 23 July 2026, the tap water in Mouroux was within every limit tested. “Eau d'alimentation ne satisfaisant pas aux références de qualité pour le paramètre température. Une température excessive peut favoriser un développement microbiologique de certains germes et bactéries nuisibles pour la santé humaine, comme les légionelles par exemple. Elle favorise aussi la dissolution de certains métaux dans l'eau, contenu dans les canalisations, et peuvent provoquer une coloration de l'eau. Il est recommandé de procéder à des purges régulières sur le réseau intérieur.”
How high are PFAS levels in Mouroux's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 29 ng/L. The EU limit is 100 ng/L, so this water is under 29 % of the limit. (below the EU limit)
Does the water in Mouroux 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 Mouroux's tap water?
Too few quantified checks to say (0 since 21 May 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Mouroux?
The water hardness in Mouroux is 25.2 °f (medium). 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 Mouroux, so in principle the same water.
Nearby communes
The closest to Mouroux 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=77320
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 September 2026
- Supply networks
- MOUROUX B - S2E 77, MOUROUX A - S2E 77, SAINT DENIS LES REBAIS - SE2 77, SAINT AUGUSTIN - S2E 77
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.