PFAS in Morigny's tap water: under 4 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 < 4 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 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 Margueray, on the same distribution network as Morigny (MONTBRAY). 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 sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,0050 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,001 µg/L
Acide perfluoropentanoïque (PFPEA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,0010 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,0010 µg/L
Acide perfluoro-octanoïque (PFOA) <0,0010 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,0010 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,0010 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0010 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,0010 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0010 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <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
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
15 May 2025
Water supplier
STGS

In Morigny, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 15 May 2025. 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: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Margueray, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: STGS Latest water check: 29 April 2026 Data updated on

PFAS over time in Morigny

A single PFAS check has been published for Morigny so far (15 May 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 14 test results
What was tested Value Limit Status
Nitrate 17.3 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium <1,0 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 7.8 unité pH 6.5–9 unité pH within the limit
Water hardness 13.6 °f no limit for reference
Electrical conductivity 325 µS/cm 200–1,100 µS/cm within the limit
Chloride 17 mg/L ≤ 250 mg/L within the limit
Sulphate 6 mg/L ≤ 250 mg/L within the limit
Iron 5.7 µg/L ≤ 200 µg/L within the limit
Turbidity <0,10 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Morigny safe to drink?

Yes. At the check on 29 April 2026, the tap water in Morigny was within every limit tested. “Eau d'alimentation conforme aux limites et références de qualité pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Morigny'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 Morigny 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.

How hard is the water in Morigny?

The water hardness in Morigny is 13.6 °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 Morigny, so in principle the same water.

Nearby communes

The closest to Morigny 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=50357
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
MONTBRAY

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