PFAS in Compreignac's tap water: 22 ng/L, 44x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
44× 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 99% of the cities we track
checked on 16 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.011 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.011 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,025 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 22 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 16 July 2026
- Water supplier
- SAUR
In Compreignac, the 4 most closely watched PFAS (PFAS-4) add up to 22 ng/L (0.022 µg/L) at the latest PFAS check on 16 July 2026. That's 44 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 22 ng/L (0.022 µg/L), below the EU legal limit (100 ng/L). 10 checks since 9 July 2025: sum of 20 PFAS up to 90 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 Compreignac
10 PFAS checks since 9 July 2025, from the published measurements. Samples come from 3 distribution networks. The trend refers to the network “FREGEFONT”.
“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 |
|---|---|---|---|
| 22 ng/L – < 29 ng/L · calculated | 22 ng/L | FREGEFONT | |
| 90 ng/L – < 97 ng/L · calculated | 90 ng/L | FREGEFONT | |
| 32.1 ng/L – < 33.1 ng/L · calculated | 35.2 ng/L | FREGEFONT | |
| 31 ng/L – < 33 ng/L · calculated | 32.4 ng/L | FREGEFONT | |
| < 4 ng/L · calculated | < detection limit | PUY MELIER | |
| 20.9 ng/L – < 22.9 ng/L · calculated | 27.6 ng/L | FREGEFONT | |
| 25.2 ng/L – < 27.2 ng/L · calculated | 26.5 ng/L | FREGEFONT | |
| 20.4 ng/L – < 21.4 ng/L · calculated | 26.4 ng/L | FREGEFONT | |
| < 4 ng/L · calculated | < detection limit | LES MADURES | |
| < 4 ng/L · calculated | < detection limit | PUY MELIER |
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.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Electrical conductivity 153 µS/cm on 16 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Electrical conductivity | 153 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 4.8 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <0,2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | <0,0005 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <0,5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <0,2 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.03 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | 1 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | <0,1 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 | 7.9 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 0.8 °f | no limit | for reference |
| Electrical conductivity | 153 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 7.4 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 2.2 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 5.3 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 2 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,3 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Compreignac safe to drink?
Yes. At the check on 16 July 2026, the tap water in Compreignac was within every limit tested. Outside a reference value: Electrical conductivity 153 µS/cm on 16 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau ne respectant pas les exigences de qualité des eaux destinées à la consommation humaine pour le paramètre conductivité.Eau agressive et corrosive en raison de sa faible minéralisation et de son pH. Risq ue de teneurs excessives en fer, cuivre voire plomb. Eau nécessitant u n traitement de reminéralisation avant distribution. A noter également une température supérieure aux exigences de qualité des eaux destinées à la consommation humaine. Les autres paramètres sont conformes.”
How high are PFAS levels in Compreignac's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 22 ng/L. The EU limit is 100 ng/L, so this water is at 22 % of the limit. (below the EU limit)
Does the water in Compreignac also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 22 ng/L. That is 5.5 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 Compreignac'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 Compreignac?
The water hardness in Compreignac is 0.8 °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 Compreignac, so in principle the same water.
Nearby communes
The closest to Compreignac 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=87047
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- FREGEFONT, LES MADURES, PUY MELIER
Water report for Compreignac
Get new PFAS results for Compreignac, 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.