PFAS in Basse-Goulaine's tap water: 1.9 ng/L, 3.8x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
3.8× 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 85% of the cities we track
checked on 17 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.006 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.0032 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0025 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0017 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.0013 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.0006 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0015 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0015 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0015 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <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
- 17 July 2026
- Water supplier
- SAUR - SECT. VIGNOBLE-GRANDLIEU
In Basse-Goulaine, the 4 most closely watched PFAS (PFAS-4) add up to 1.9 ng/L (0.0019 µg/L) at the latest PFAS check on 17 July 2026. That's 3.8 times our 0.5 ng/L health benchmark, but below 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). 13 checks since 21 January 2025: sum of 20 PFAS up to 27 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 Basse-Goulaine
13 PFAS checks since 21 January 2025, from the published measurements. Samples come from 3 distribution networks. The trend refers to the network “SECTEUR-VERTOU BASSE GOULAINE”.
“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 |
|---|---|---|---|
| 1.9 ng/L – < 3.9 ng/L · calculated | 15 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| 1.3 ng/L – < 3.3 ng/L · calculated | 20 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| < 3 ng/L · calculated | 6 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| < 3 ng/L · calculated | 5.9 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| 0.7 ng/L – < 3.2 ng/L · calculated | 8.7 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| < 6 ng/L · calculated | 5.9 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| 0.6 ng/L – < 13.6 ng/L · calculated | 3.4 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| 1.5 ng/L – < 5 ng/L · calculated | 9.4 ng/L | SECTEUR-VERTOU BASSE GOULAINE | |
| 18.5 ng/L – < 19 ng/L · calculated | 27 ng/L | 085000405, 085000805 | |
| 18.5 ng/L – < 19 ng/L · calculated | 27 ng/L | 085000405, 085000805 | |
| < 10 ng/L · calculated | < detection limit | SECTEUR-VERTOU BASSE GOULAINE | |
| < 10 ng/L · calculated | < detection limit | 085000405, 085000805 |
Show the 1 earlier checks (back to 21 January 2025)
| < 10 ng/L · calculated | < detection limit | 085000405, 085000805 |
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 | 3.7 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.1 mg/L | within the limit |
| Lead | 0.3 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.027 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 1.5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 1.2 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,010 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.4 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | 0.6 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | <0,10 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 | 7.8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 14.5 °f | no limit | for reference |
| Electrical conductivity | 441 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 36.4 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 24.2 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 22.3 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 15 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,30 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Basse-Goulaine safe to drink?
Yes. At the check on 28 July 2026, the tap water in Basse-Goulaine 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 Basse-Goulaine'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 Basse-Goulaine 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 1.9 ng/L stays below.
Are PFAS levels rising in Basse-Goulaine'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 Basse-Goulaine?
The water hardness in Basse-Goulaine is 14.5 °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 21 September 2026.
Same water network
Same distribution network as Basse-Goulaine, so in principle the same water.
Nearby communes
The closest to Basse-Goulaine 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=44009
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SECTEUR-VERTOU BASSE GOULAINE
Water report for Basse-Goulaine
Get new PFAS results for Basse-Goulaine, 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.