PFAS in Crachier's tap water: 6 ng/L, 12x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
12× 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 93% of the cities we track
checked on 2 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.004 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.004 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 15 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 2 April 2026
- Water supplier
- SEMIDAO
In Crachier, the 4 most closely watched PFAS (PFAS-4) add up to 6 ng/L (0.006 µg/L) at the latest PFAS check on 2 April 2026. That's 12 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 15 ng/L (0.015 µg/L), below the EU legal limit (100 ng/L). 3 checks since 24 November 2025: PFAS-4 up to 15 ng/L, sometimes below the detection limit, averaging at least 7 ng/L over 12 months (non-detects as 0). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Crachier
8 PFAS checks since 29 August 2024, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Crachier.
“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 |
|---|---|---|---|
| 6 ng/L | 15 ng/L | Crachier | |
| < 4 ng/L | < 29 ng/L | Maubec | |
| 15 ng/L | 47 ng/L | Chèzeneuve | |
| 13 ng/L – < 14 ng/L · calculated | 31 ng/L | Chèzeneuve | |
| 15 ng/L – < 16 ng/L · calculated | 38 ng/L | Chèzeneuve | |
| < 4 ng/L · calculated | < 1 ng/L | Maubec | |
| 35 ng/L – < 36 ng/L · calculated | 79 ng/L | Chèzeneuve | |
| 35 ng/L – < 36 ng/L · calculated | 88 ng/L | Chèzeneuve |
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 16 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12.5 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 | <0,010 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | N.M. µg/L | ≤ 6 µg/L | no verdict |
| 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 | 7.35 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 29.58 °f | no limit | for reference |
| Electrical conductivity | 620 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 14 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 21.7 mg/L | ≤ 250 mg/L | within the limit |
| Turbidity | 0.29 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Crachier safe to drink?
Yes. At the check on 2 April 2026, the tap water in Crachier 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 Crachier's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 15 ng/L. The EU limit is 100 ng/L, so this water is at 15 % of the limit. (below the EU limit)
Does the water in Crachier also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 6 ng/L. That is 1.5 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).
Are PFAS levels rising in Crachier's tap water?
Too few quantified checks to say (2 since 29 August 2024). 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 Crachier?
The water hardness in Crachier is 29.6 °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 12 September 2026.
Same water network
Same distribution network as Crachier, so in principle the same water.
Nearby communes
The closest to Crachier 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=38136
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- MAUBEC CHEZENEUVE CRACHIER
Water report for Crachier
Get new PFAS results for Crachier, 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.