PFAS in Guilherand-Granges's tap water: 15 ng/L, 30x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
30× 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 97% of the cities we track
checked on 11 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.009 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.004 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 23 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 11 May 2026
- Water supplier
- VEOLIA EAU SAINT PERAY
In Guilherand-Granges, the 4 most closely watched PFAS (PFAS-4) add up to 15 ng/L (0.015 µg/L) at the latest PFAS check on 11 May 2026. That's 30 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 23 ng/L (0.023 µg/L), below the EU legal limit (100 ng/L). 4 checks since 20 June 2025: PFAS-4 from 15 ng/L to 21 ng/L, averaging 17.75 ng/L over 12 months. Falling on the main network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Guilherand-Granges
11 PFAS checks since 9 June 2023, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Guilherand-Granges.
“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 |
|---|---|---|---|
| 15 ng/L | 23 ng/L | Guilherand-Granges | |
| 21 ng/L | 34 ng/L | Soyons | |
| 15 ng/L | 27 ng/L | Guilherand-Granges | |
| 20 ng/L | 31 ng/L | Guilherand-Granges | |
| 17 ng/L – < 18 ng/L · calculated | 23 ng/L | Guilherand-Granges | |
| 20.8 ng/L – < 22.8 ng/L · calculated | 28.5 ng/L | Guilherand-Granges | |
| 14.4 ng/L – < 16.4 ng/L · calculated | 17.6 ng/L | Guilherand-Granges | |
| 17.8 ng/L – < 19.8 ng/L · calculated | 22.4 ng/L | Guilherand-Granges | |
| 15.1 ng/L – < 17.1 ng/L · calculated | 21.4 ng/L | Guilherand-Granges | |
| 26 ng/L – < 27 ng/L · calculated | 44.7 ng/L | Guilherand-Granges | |
| 14.9 ng/L – < 16.9 ng/L · calculated | 23.2 ng/L | Guilherand-Granges |
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 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/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 |
| Fluoride | 0.13 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 | 7.6 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 20.74 °f | no limit | for reference |
| Electrical conductivity | 425 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 9.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 16.4 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 7.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Guilherand-Granges safe to drink?
Yes. At the check on 27 July 2026, the tap water in Guilherand-Granges was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”
How high are PFAS levels in Guilherand-Granges's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 23 ng/L. The EU limit is 100 ng/L, so this water is at 23 % of the limit. (below the EU limit)
Does the water in Guilherand-Granges also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 15 ng/L. That is 3.8 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 Guilherand-Granges's tap water?
No, they are falling. On the main network, the PFAS-4 sum went from 20 ng/L (20 June 2025) to 15 ng/L (11 May 2026) across 4 quantified checks. These history statistics use laboratory-published sums only.
How hard is the water in Guilherand-Granges?
The water hardness in Guilherand-Granges is 20.7 °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 Guilherand-Granges, so in principle the same water.
Nearby communes
The closest to Guilherand-Granges 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=07102
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SCPV GUILHERAND VILLE
Water report for Guilherand-Granges
Get new PFAS results for Guilherand-Granges, 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.