PFAS in Hon-Hergies's tap water: 3 ng/L, 6x our 0.5 ng/L benchmark

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

6× above our health benchmark

Amount found in the water 3 ng/L 0.003 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.

Sample taken in Boussières-sur-Sambre, on the same distribution network as Hon-Hergies (GOMMEGNIES). 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.

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 88% of the cities we track

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

Above our health benchmark. Here are some filter options.

EU legal limit
5 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
6 March 2026
Water supplier
SIDEN-SIAN NOREADE LE QUESNOY

In Hon-Hergies, the 4 most closely watched PFAS (PFAS-4) add up to 3 ng/L (0.003 µg/L) at the latest PFAS check on 6 March 2026. That's 6 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 5 ng/L (0.005 µg/L), below the EU legal limit (100 ng/L). Sampled in Boussières-sur-Sambre, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIDEN-SIAN NOREADE LE QUESNOY Latest water check: 6 March 2026 Data updated on

PFAS over time in Hon-Hergies

A single PFAS check has been published for Hon-Hergies so far (6 March 2026). 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 20 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
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <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 7.7 unité pH 6.5–9 unité pH within the limit
Electrical conductivity 731 µS/cm 200–1,100 µS/cm within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity 0.18 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Hon-Hergies safe to drink?

Yes. At the check on 6 March 2026, the tap water in Hon-Hergies 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 Hon-Hergies's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 5 ng/L. The EU limit is 100 ng/L, so this water is at 5 % of the limit. (below the EU limit)

Does the water in Hon-Hergies also meet the strictest limits in Europe?

Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 3 ng/L stays below.

How hard is the water in Hon-Hergies?

No hardness value is available for Hon-Hergies 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 12 September 2026.

Same water network

Same distribution network as Hon-Hergies, so in principle the same water.

Nearby communes

The closest to Hon-Hergies 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=59310
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
GOMMEGNIES

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