PFAS in Tendon's tap water: under 8 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 8 ng/L, 16 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 2 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.
checked on 28 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
None found. The lab sees nothing below 8 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Tendon
Get new PFAS results for Tendon, 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
- 28 May 2026
- Water supplier
- SDE TENDON-FAUCOMPIERRE-XAMONTARUPT
In Tendon, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 28 May 2026. The total is below 8 ng/L, the sum of the detection limits and 16 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,005 µg/L, below the EU legal limit (100 ng/L). 18 checks since 13 May 2025: sum of 20 PFAS up to 260 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 Tendon
18 PFAS checks since 13 May 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Tendon. Samples come from 2 distribution networks. The trend refers to the network “RESEAU TENDON LEVERS HAUTS”.
“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 | Network |
|---|---|---|---|---|
| < 8 ng/L · calculated | < 5 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| < 8 ng/L · calculated | < 5 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| < 8 ng/L · calculated | < 5 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| < 8 ng/L · calculated | < 5 ng/L | Tendon | RESEAU TENDON HEUNOTTE | |
| < 8 ng/L · calculated | < 5 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 242 ng/L · calculated | 260 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 100 ng/L · calculated | 120 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 134 ng/L · calculated | 150 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 104 ng/L · calculated | 130 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 96 ng/L · calculated | 120 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 113 ng/L · calculated | 150 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 122 ng/L · calculated | 150 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS |
Show the 6 earlier checks (back to 13 May 2025)
| 124 ng/L · calculated | 150 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 95 ng/L · calculated | 110 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 102 ng/L · calculated | 120 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| 116 ng/L · calculated | 140 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS | |
| < 8 ng/L · calculated | < 5 ng/L | Faucompierre | RESEAU TENDON HEUNOTTE | |
| 120 ng/L · calculated | 150 ng/L | Tendon | RESEAU TENDON LEVERS HAUTS, RESEAU TENDON LEVERS HAUTS |
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 130 µS/cm on 28 May 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 | 130 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 3 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | 0.6 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.02 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.24 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.02 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 | 8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 6.1 °f | no limit | for reference |
| Electrical conductivity | 130 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 1.5 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 1.8 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 1.5 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 3 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Tendon safe to drink?
Yes. At the check on 28 May 2026, the tap water in Tendon was within every limit tested. Outside a reference value: Electrical conductivity 130 µS/cm on 28 May 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”
How high are PFAS levels in Tendon's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 5 ng/L. The EU limit is 100 ng/L, so this water is under 5 % of the limit. (below the EU limit)
Does the water in Tendon 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 8 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 Tendon'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 Tendon?
The water hardness in Tendon is 6.1 °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 Tendon, so in principle the same water.
Nearby communes
The closest to Tendon 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=88464
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- RESEAU TENDON LEVERS HAUTS, RESEAU TENDON HEUNOTTE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.