PFAS in Sully-sur-Loire's tap water: 9 ng/L, 18x our 0.5 ng/L benchmark

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

18× above our health benchmark

Amount found in the water 9 ng/L 0.009 µg/L · the 4 most harmful PFAS (PFAS-4)
Our health benchmark 0.5 ng/L

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.

Substances below the detection limit count as 0, so the real total may be higher.

One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).

More PFAS than in 95% of the cities we track

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.017 µg/L
Acide perfluorohexanoïque (PFHXA) 0.007 µg/L
Acide perfluorobutanoïque (PFBA) 0.005 µg/L
Perfluorohexane sulfonate (PFHXS) 0.004 µg/L
Acide perfluoroheptanoïque (PFHPA) 0.003 µg/L
Acide perfluoro-octanoïque (PFOA) 0.003 µg/L
Acide sulfonique de perfluorooctane (PFOS) 0.002 µg/L
Acide sulfonique de perfluorobutane (PFBS) 0.001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L

Above our health benchmark. Here are some filter options.

EU legal limit
42 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
15 January 2026
Water supplier
SAUR

In Sully-sur-Loire, the 4 most closely watched PFAS (PFAS-4) add up to 9 ng/L (0.009 µg/L) at the latest PFAS check on 15 January 2026. That's 18 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 42 ng/L (0.042 µg/L), below the EU legal limit (100 ng/L). 3 checks since 21 January 2025: sum of 20 PFAS from 40 ng/L to 45 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SAUR Latest water check: 3 February 2026 Data updated on

PFAS over time in Sully-sur-Loire

3 PFAS checks since 21 January 2025, from the published measurements.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

45 ng/L021 January 202515 January 2026
Laboratory-published sum of 20 PFAS per check in ng/L. Hollow dots: below the detection limit. Calculated PFAS-4 values are listed in the table.
DatePFAS-4Sum of 20 PFAS
9 ng/L – < 10 ng/L · calculated42 ng/L
8 ng/L – < 9 ng/L · calculated40 ng/L
11 ng/L – < 12 ng/L · calculated45 ng/L

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.

Microbiology: within the limit Chemistry: within the limit

Values to watch

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

What was tested Value Limit Status
Nitrate 26 mg/L ≤ 50 mg/L within the limit
See all 21 test results
What was tested Value Limit Status
Nitrate 26 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper <0,010 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Arsenic <2 µg/L ≤ 10 µg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/L within the limit
Uranium <10 µg/L ≤ 30 µg/L within the limit
Fluoride 0.05 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 7.1 unité pH 6.5–9 unité pH within the limit
Water hardness 18.84 °f no limit for reference
Electrical conductivity 433 µS/cm 200–1,100 µS/cm within the limit
Chloride 15 mg/L ≤ 250 mg/L within the limit
Sulphate 7.3 mg/L ≤ 250 mg/L within the limit
Sodium 10.3 mg/L ≤ 200 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity <0,1 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Sully-sur-Loire safe to drink?

Yes. At the check on 3 February 2026, the tap water in Sully-sur-Loire 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 Sully-sur-Loire's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 42 ng/L. The EU limit is 100 ng/L, so this water is at 42 % of the limit. (below the EU limit)

Does the water in Sully-sur-Loire also meet the strictest limits in Europe?

No. The four most harmful PFAS add up to 9 ng/L. That is 2.3 times Sweden's legal limit of 4 ng/L, in force since 2026. Germany will set a similar one in 2028. The water still passes the current EU legal limit (100 ng/L for the total of 20 PFAS).

Are PFAS levels rising in Sully-sur-Loire'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 Sully-sur-Loire?

The water hardness in Sully-sur-Loire is 18.8 °f (medium). 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 Sully-sur-Loire, so in principle the same water.

Nearby communes

The closest to Sully-sur-Loire 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=45315
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
SULLY SUR LOIRE-ST PERE SUR LOIRE

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