PFAS in Beaucroissant's tap water: 3 ng/L, 6x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
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 88% of the cities we track
checked on 9 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro-octanoïque (PFOA) | 0.001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <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 perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 9 June 2026
- Water supplier
- REGIE DES EAUX DE BIEVRE EST
In Beaucroissant, the 4 most closely watched PFAS (PFAS-4) add up to 3 ng/L (0.003 µg/L) at the latest PFAS check on 9 June 2026. That's 6 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 3 ng/L (0.003 µg/L), below the EU legal limit (100 ng/L). 12 checks since 5 August 2025: PFAS-4 up to 119 ng/L, sometimes below the detection limit, averaging 101.5 ng/L over 12 months. No clear trend. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Beaucroissant
22 PFAS checks since 27 May 2025, from the published measurements. Samples come from 4 distribution networks. The trend refers to the network “BEAUCROISSANT RESEAU”.
“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 | Network |
|---|---|---|---|
| 3 ng/L | 3 ng/L | BEAUCROISSANT HAUT SERVICE | |
| 2 ng/L | 2 ng/L | RESEAU LAYAT COUBLEVIE | |
| < 4 ng/L | < 29 ng/L | RESEAU LAYAT COUBLEVIE | |
| 1 ng/L | 1 ng/L | RESEAU LAYAT COUBLEVIE | |
| 115 ng/L | 151 ng/L | BEAUCROISSANT RESEAU | |
| 119 ng/L | 157 ng/L | 038001345 | |
| 100 ng/L | 126 ng/L | BEAUCROISSANT RESEAU | |
| 108 ng/L | 139 ng/L | 038001345 | |
| 94 ng/L | 122 ng/L | BEAUCROISSANT RESEAU | |
| 116 ng/L | 148 ng/L | 038001345 | |
| 107 ng/L | 137 ng/L | 038001345 | |
| 97 ng/L | 122 ng/L | BEAUCROISSANT RESEAU |
Show the 10 earlier checks (back to 27 May 2025)
| 102 ng/L – < 103 ng/L · calculated | 130 ng/L | 038001345 | |
| 76 ng/L – < 77 ng/L · calculated | 95 ng/L | BEAUCROISSANT RESEAU | |
| 106 ng/L – < 107 ng/L · calculated | 140 ng/L | 038001345 | |
| 73 ng/L – < 74 ng/L · calculated | 96 ng/L | BEAUCROISSANT RESEAU | |
| 114 ng/L – < 115 ng/L · calculated | 151 ng/L | 038001345 | |
| 70 ng/L – < 71 ng/L · calculated | 88 ng/L | BEAUCROISSANT RESEAU | |
| 42 ng/L – < 43 ng/L · calculated | 55 ng/L | BEAUCROISSANT RESEAU | |
| 94 ng/L – < 95 ng/L · calculated | 123 ng/L | 038001345 | |
| 103 ng/L – < 104 ng/L · calculated | 135 ng/L | 038001345 | |
| 40 ng/L – < 41 ng/L · calculated | 51 ng/L | BEAUCROISSANT RESEAU |
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 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 7.1 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.067 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <2 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <5 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.05 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 | 7.4 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 26.64 °f | no limit | for reference |
| Electrical conductivity | 502 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 4.1 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 8.1 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 5.2 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.18 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Beaucroissant safe to drink?
Yes. At the check on 17 July 2026, the tap water in Beaucroissant 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 Beaucroissant's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 3 ng/L. The EU limit is 100 ng/L, so this water is at 3 % of the limit. (below the EU limit)
Does the water in Beaucroissant 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 ng/L stays below.
Are PFAS levels rising in Beaucroissant's tap water?
No clear trend. Since 27 May 2025, 12 checks have been published; on the main network the PFAS-4 sum ranged between 94 ng/L and 115 ng/L (4 quantified values), at times below the detection limit. pfasnearme only reports a trend from a change of at least 25 % and 1 ng/L. These history statistics use laboratory-published sums only.
How hard is the water in Beaucroissant?
The water hardness in Beaucroissant is 26.6 °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 21 September 2026.
Same water network
Same distribution network as Beaucroissant, so in principle the same water.
Nearby communes
The closest to Beaucroissant 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=38030
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- BEAUCROISSANT RESEAU, RESEAU LAYAT COUBLEVIE, BEAUCROISSANT HAUT SERVICE
Water report for Beaucroissant
Get new PFAS results for Beaucroissant, 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.