PFAS in Teigny's tap water: under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 10 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 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.

Sample taken in Monceaux-le-Comte, on the same distribution network as Teigny (MONTCEAUX LE COMTE). The health authority samples one tap per network; a network carries the same treated water everywhere.

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 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluorohexanoïque (PFHXA) 0.006 µg/L
Acide perfluoroheptanoïque (PFHPA) 0.003 µg/L
Acide perfluoropentanoïque (PFPEA) 0.001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
10 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
2 June 2026
Water supplier
SIAEP CHARLES-CHAIGNEAU

In Teigny, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 2 June 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 10 ng/L (0.01 µg/L), below the EU legal limit (100 ng/L). Sampled in Monceaux-le-Comte, on the same network. 2 checks since 29 August 2025, PFAS-4 always below the detection limit (4 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIAEP CHARLES-CHAIGNEAU Latest water check: 2 June 2026 Data updated on

PFAS over time in Teigny

2 PFAS checks since 29 August 2025, values as published.

DatePFAS-4Sum of 20 PFASSampled at
< 4 ng/L10 ng/LMonceaux-le-Comte
< 4 ng/L< 29 ng/LMonceaux-le-Comte

“<” 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.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

Outside a reference value: Electrical conductivity 1,167 µS/cm on 24 January 2025 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Fluoride 1.19 mg/L ≤ 1.5 mg/L within the limit
Electrical conductivity 1,167 µS/cm 200–1,100 µS/cm above the reference value
See all 10 test results
What was tested Value Limit Status
Lead 3 µg/L ≤ 10 µg/L within the limit
Arsenic <2 µg/L ≤ 10 µg/L within the limit
Fluoride 1.19 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 7.5 unité pH 6.5–9 unité pH within the limit
Electrical conductivity 1,167 µS/cm 200–1,100 µS/cm above the reference value
Iron 13 µg/L ≤ 200 µg/L within the limit
Turbidity <0,1 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Teigny safe to drink?

Yes. At the check on 2 June 2026, the tap water in Teigny was within every limit tested. Outside a reference value: Electrical conductivity 1,167 µS/cm on 24 January 2025 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés excepté la conductivité. Une dérogat ion temporaire aux limites de qualité des eaux destinées à la consomma tion humaine applicable au paramètre fluor et portant restriction des usages de l’eau à des fins alimentaires pour les nourrissons et les en fants (jusqu’à 12 ans) est accordée au SIAEP de Charles Chaigneau par arrêté préfectoral n°58-2022-04-26-0002 du 26 avril 2022.”

How high are PFAS levels in Teigny's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 10 ng/L. The EU limit is 100 ng/L, so this water is at 10 % of the limit. (below the EU limit)

Does the water in Teigny also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Teigny's tap water?

Too few quantified checks to say (0 since 29 August 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.

How hard is the water in Teigny?

No hardness value is available for Teigny in this source.

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 Teigny, so in principle the same water.

Nearby communes

The closest to Teigny 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=58288
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
MONTCEAUX LE COMTE

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.