PFAS in Monthou-sur-Cher's tap water: under 12 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 12 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 12 ng/L, 24 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 to 4 ng/L upward. None reached that limit, so their total is below 12 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoroheptane sulfonique (PFHpS) <0,004 µg/L
Acide perfluoropentanoïque (PFPEA) <0,010 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,002 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,004 µg/L
Acide perfluoro-decanoïque (PFDA) <0,002 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluorobutanoïque (PFBA) <0,020 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,010 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,002 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,004 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,002 µg/L
Acide perfluorohexanoïque (PFHXA) <0,010 µg/L
Perfluorohexane sulfonate (PFHXS) <0,002 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,004 µg/L
Acide perfluoro-octanoïque (PFOA) <0,004 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,002 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,004 µg/L
Acide perfluorododécanoique (PFDoDA) <0,002 µg/L

None found. The lab sees nothing below 12 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
19 March 2025
Water supplier
SIAEP DE LA VIGNE AUX CHAMPS

In Monthou-sur-Cher, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 19 March 2025. The total is below 12 ng/L, the sum of the detection limits and 24 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIAEP DE LA VIGNE AUX CHAMPS Latest water check: 9 March 2026 Data updated on

PFAS over time in Monthou-sur-Cher

A single PFAS check has been published for Monthou-sur-Cher so far (19 March 2025). A history will build up with the next checks; this page is refreshed weekly.

What the latest check found

At the latest check, the water was within every limit tested.

Microbiology: within the limit Chemistry: within the limit
See all 20 test results
What was tested Value Limit Status
Nitrate 0.63 mg/L ≤ 50 mg/L within the limit
Nitrite <0,010 mg/L ≤ 0.5 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper 0.03 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Arsenic <0,2 µg/L ≤ 10 µg/L within the limit
Cadmium <0,010 µg/L ≤ 5 µg/L within the limit
Chromium 0.2 µg/L ≤ 50 µg/L within the limit
Fluoride 0.715 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 8.2 unité pH 6.5–9 unité pH within the limit
Water hardness 5.8 °f no limit for reference
Electrical conductivity 648 µS/cm 200–1,100 µS/cm within the limit
Chloride 38.4 mg/L ≤ 250 mg/L within the limit
Sulphate 23.9 mg/L ≤ 250 mg/L within the limit
Sodium 118 mg/L ≤ 200 mg/L within the limit
Iron 35 µg/L ≤ 200 µg/L within the limit
Turbidity <0,30 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Monthou-sur-Cher safe to drink?

Yes. At the check on 9 March 2026, the tap water in Monthou-sur-Cher was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Monthou-sur-Cher's drinking water?

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

Does the water in Monthou-sur-Cher 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 12 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

How hard is the water in Monthou-sur-Cher?

The water hardness in Monthou-sur-Cher is 5.8 °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 12 September 2026.

Same water network

Same distribution network as Monthou-sur-Cher, so in principle the same water.

Nearby communes

The closest to Monthou-sur-Cher 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=41146
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
MONTHOU SUR CHER

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