PFAS in Chocques'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
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 Allouagne, on the same distribution network as Chocques (ALLOUAGNE). 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.
checked on 22 August 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Chocques
Get new PFAS results for Chocques, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 22 August 2025
- Water supplier
- C.A.B.B.A.L.R.
In Chocques, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 22 August 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: <0,029 µg/L, below the EU legal limit (100 ng/L). Sampled in Allouagne, on the same network. 2 checks since 6 August 2025, 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
PFAS over time in Chocques
2 PFAS checks since 6 August 2025, values as published. Samples from 2 communes on the same network: it's the same water, so each one applies to Chocques. Samples come from 2 distribution networks. The trend refers to the network “CHOCQUES”.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at | Network |
|---|---|---|---|---|
| < 4 ng/L | < 29 ng/L | Allouagne | ALLOUAGNE | |
| < 20 ng/L | < 29 ng/L | Chocques | CHOCQUES |
“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Iron 1,088 µg/L on 25 June 2026 (reference ≤ 200 µg/L), Turbidity 3.9 NFU on 1 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nickel | 11 µg/L | ≤ 20 µg/L | within the limit |
| Iron | 1,088 µg/L | ≤ 200 µg/L | above the reference value |
| Turbidity | 3.9 NFU | ≤ 2 NFU | above the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 9.2 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 | 0.01 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 11 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 |
| Fluoride | 0.22 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 | 7.3 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 32.81 °f | no limit | for reference |
| Electrical conductivity | 777 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 35.1 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 70 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 29.3 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 1,088 µg/L | ≤ 200 µg/L | above the reference value |
| Turbidity | 3.9 NFU | ≤ 2 NFU | above the reference value |
Frequently asked questions
Is tap water in Chocques safe to drink?
Yes. At the check on 1 July 2026, the tap water in Chocques was within every limit tested. Outside a reference value: Iron 1,088 µg/L on 25 June 2026 (reference ≤ 200 µg/L), Turbidity 3.9 NFU on 1 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits. “Eau d’alimentation conforme aux limites de qualité en vigueur mais non satisfaisante à la référence de qualité pour le paramètre turbidité. Il est demandé de remédier à la situation de non-conformité constatée. En attendant, l'eau reste consommable.”
How high are PFAS levels in Chocques'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 Chocques 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 Chocques's tap water?
Too few quantified checks to say (0 since 6 August 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.
How hard is the water in Chocques?
The water hardness in Chocques is 32.8 °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 Chocques, so in principle the same water.
Nearby communes
The closest to Chocques 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=62224
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- CHOCQUES, ALLOUAGNE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.