PFAS in Blanche-Église's tap water: under 8 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

Fails the current legal limits

PFAS in drinking water

No PFAS detected

Amount found in the water < 8 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 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.

Sample taken in Saint-Médard, on the same distribution network as Blanche-Église (MULCEY-SAINT-MEDARD). 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 2 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.

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

Fails a current legal limit. The details are below.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
17 June 2025
Water supplier
S.I.E MULCEY SAINT-MEDARD

In Blanche-Église, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 17 June 2025. 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). Sampled in Saint-Médard, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: S.I.E MULCEY SAINT-MEDARD Latest water check: 23 June 2026 Data updated on

PFAS over time in Blanche-Église

A single PFAS check has been published for Blanche-Église so far (17 June 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 over at least one limit.

Microbiology: within the limit Chemistry: over the limit

Values to watch

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

What was tested Value Limit Status
Nitrate 60 mg/L ≤ 50 mg/L over the limit
See all 13 test results
What was tested Value Limit Status
Nitrate 60 mg/L ≤ 50 mg/L over the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Cadmium <0,010 µg/L ≤ 5 µg/L within the limit
Chromium <0,5 µg/L ≤ 50 µg/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
Water hardness 54.6 °f no limit for reference
Electrical conductivity 990 µS/cm 200–1,100 µS/cm within the limit
Chloride 9.1 mg/L ≤ 250 mg/L within the limit
Sulphate 200 mg/L ≤ 250 mg/L within the limit
Turbidity <0,1 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Blanche-Église safe to drink?

At the latest check, the water was over at least one limit. “Eau d'alimentation non conforme à la limite de qualité réglementaire pour le paramètre nitrates. La consommation de l'eau est déconseillée aux femmes enceintes et aux nourrissons de moins de 6 mois. Les mesures correctives nécessaires doivent être prises afin de rétablir la qualité de l'eau. Un suivi analytique renforcé est réalisé pour vérifier l'évolution de ce paramètre.”

How high are PFAS levels in Blanche-Église'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 Blanche-Église 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.

How hard is the water in Blanche-Église?

The water hardness in Blanche-Église is 54.6 °f (hard). 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 Blanche-Église, so in principle the same water.

Nearby communes

The closest to Blanche-Église 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=57090
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
MULCEY-SAINT-MEDARD

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