PFAS in Fescamps's tap water: under 4 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 < 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 Guerbigny, on the same distribution network as Fescamps (GUERBIGNY UDI). 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 perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoropentanoïque (PFPEA) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 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
12 June 2026
Water supplier
SIAEP DE GUERBIGNY

In Fescamps, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 12 June 2026. 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: <0,029 µg/L, below the EU legal limit (100 ng/L). Sampled in Guerbigny, on the same network. 3 checks since 24 March 2026, PFAS-4 always below the detection limit (4 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIAEP DE GUERBIGNY Latest water check: 12 June 2026 Data updated on

PFAS over time in Fescamps

4 PFAS checks since 20 January 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Fescamps.

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

DatePFAS-4Sum of 20 PFASSampled at
< 4 ng/L< 29 ng/LGuerbigny
< 4 ng/L< 29 ng/LFescamps
< 4 ng/L< 29 ng/LGuerbigny
< 4 ng/L · calculated< 1 ng/LGuerbigny

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 over at least one limit.

Microbiology: no verdict 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 40.1 mg/L ≤ 50 mg/L within the limit
See all 21 test results
What was tested Value Limit Status
Nitrate 40.1 mg/L ≤ 50 mg/L within the limit
Nitrite <0,010 mg/L ≤ 0.5 mg/L within the limit
Lead 0.6 µg/L ≤ 10 µg/L within the limit
Copper 0.009 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel 0.6 µg/L ≤ 20 µg/L within the limit
Arsenic <0,5 µg/L ≤ 10 µg/L within the limit
Cadmium <0,5 µg/L ≤ 5 µg/L within the limit
Chromium <0,5 µg/L ≤ 50 µg/L within the limit
Uranium <10 µg/L ≤ 30 µg/L within the limit
Fluoride 0.258 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli 0 n/(100mL) ≤ 0 mL) within the limit
Enterococci 0 n/(100mL) ≤ 0 mL) within the limit
Coliform bacteria 0 n/(100mL) ≤ 0 mL) within the limit
pH 7.2 unité pH 6.5–9.5 pH within the limit
Water hardness 33.3 °f no limit for reference
Electrical conductivity 725 µS/cm 200–1,100 µS/cm within the limit
Chloride 24.9 mg/L ≤ 250 mg/L within the limit
Sulphate 15.7 mg/L ≤ 250 mg/L within the limit
Sodium 10 mg/L ≤ 200 mg/L within the limit
Iron <5 µg/L ≤ 200 µg/L within the limit
Turbidity <0,30 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Fescamps safe to drink?

At the latest check, the water was over at least one limit. “Eau d'alimentation non conforme aux limites de qualité en vigueur pour le paramètre pesticide Desphényl-Chloridazone. Toutefois, cette eau est propre à la consommation humaine car la concentration du pesticide reste inférieure aux valeurs sanitaires. Un contrôle renforcé est mis en place.”

How high are PFAS levels in Fescamps's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 29 ng/L. The EU limit is 100 ng/L, so this water is under 29 % of the limit. (below the EU limit)

Does the water in Fescamps 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.

Are PFAS levels rising in Fescamps's tap water?

No. Since 20 January 2025, 3 checks have been published and the PFAS-4 sum stayed below the laboratory's detection limit (4 ng/L) every time. These history statistics use laboratory-published sums only.

How hard is the water in Fescamps?

The water hardness in Fescamps is 33.3 °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 21 September 2026.

Same water network

Same distribution network as Fescamps, so in principle the same water.

Nearby communes

The closest to Fescamps 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=80306
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
GUERBIGNY UDI

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