PFAS in Giou-de-Mamou's tap water: under 13 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 13 ng/L, 26 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.
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 1.5 to 5 ng/L upward. None reached that limit, so their total is below 13 ng/L rather than zero.
checked on 1 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,040 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0015 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0015 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0015 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0015 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0015 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0015 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
None found. The lab sees nothing below 13 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Giou-de-Mamou
Get new PFAS results for Giou-de-Mamou, 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
- 1 July 2026
- Water supplier
- AURILLAC AGGLO
In Giou-de-Mamou, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 1 July 2026. The total is below 13 ng/L, the sum of the detection limits and 26 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,0895 µg/L, below the EU legal limit (100 ng/L). 2 checks since 5 November 2025, PFAS-4 always below the detection limit (13 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Giou-de-Mamou
2 PFAS checks since 5 November 2025, values as published.
| Date | PFAS-4 | Sum of 20 PFAS |
|---|---|---|
| < 13 ng/L | < 89.5 ng/L | |
| < 4 ng/L | < 71 ng/L |
“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: pH 6.3 unité pH on 1 July 2026 (reference 6.5–9 unité pH), Electrical conductivity 84 µS/cm on 1 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Lead | 5.43 µg/L | ≤ 10 µg/L | within the limit |
| pH | 6.3 unité pH | 6.5–9 unité pH | below the reference value |
| Electrical conductivity | 84 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 13.3 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 5.43 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.604 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 2 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 0.19 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,01 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | <0,01 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.03 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 | 6.3 unité pH | 6.5–9 unité pH | below the reference value |
| Water hardness | 2.9 °f | no limit | for reference |
| Electrical conductivity | 84 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 4.9 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 2.2 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 3.38 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 11 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,3 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Giou-de-Mamou safe to drink?
Yes. At the check on 1 July 2026, the tap water in Giou-de-Mamou was within every limit tested. Outside a reference value: pH 6.3 unité pH on 1 July 2026 (reference 6.5–9 unité pH), Electrical conductivity 84 µS/cm on 1 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau de qualité sanitaire satisfaisante.”
How high are PFAS levels in Giou-de-Mamou's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 89.5 ng/L. The EU limit is 100 ng/L, so this water is under 89 % of the limit. (below the EU limit)
Does the water in Giou-de-Mamou also meet the strictest limits in Europe?
The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 13 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.
Are PFAS levels rising in Giou-de-Mamou's tap water?
Too few quantified checks to say (0 since 5 November 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.
How hard is the water in Giou-de-Mamou?
The water hardness in Giou-de-Mamou is 2.9 °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 28 September 2026.
Nearby communes
The closest to Giou-de-Mamou 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=15074
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 September 2026
- Supply networks
- MAMOU, GIOU
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.