PFAS in Colombelles's tap water: 4.5 ng/L, 9x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
9× above our health benchmark
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 Giberville, on the same distribution network as Colombelles (PLATEAU COLOMBELLES). 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 91% of the cities we track
checked on 26 November 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.0029 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.0022 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.0018 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.0016 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.0013 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0012 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.0011 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0020 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 15.1 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 26 November 2025
- Water supplier
- SAUR CENTRE NORMANDIE
In Colombelles, the 4 most closely watched PFAS (PFAS-4) add up to 4.5 ng/L (0.0045 µg/L) at the latest PFAS check on 26 November 2025. That's 9 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 15.1 ng/L (0.0151 µg/L), below the EU legal limit (100 ng/L). Sampled in Giberville, on the same network. 3 checks since 24 February 2025: sum of 20 PFAS up to 15.1 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Colombelles
3 PFAS checks since 24 February 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.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| 4.5 ng/L – < 5.5 ng/L · calculated | 15.1 ng/L | Giberville | |
| 5.7 ng/L – < 8.7 ng/L · calculated | 8.7 ng/L | Giberville | |
| < 6 ng/L · calculated | < detection limit | Giberville |
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.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Iron 350 µg/L on 1 July 2026 (reference ≤ 200 µg/L). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Iron | 350 µg/L | ≤ 200 µg/L | above the reference value |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 16.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.43 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.015 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <2,0 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | <0,10 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.84 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 | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 17.9 °f | no limit | for reference |
| Electrical conductivity | 583 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 65.7 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 39.6 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 350 µg/L | ≤ 200 µg/L | above the reference value |
| Turbidity | 1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Colombelles safe to drink?
Yes. At the check on 1 July 2026, the tap water in Colombelles was within every limit tested. Outside a reference value: Iron 350 µg/L on 1 July 2026 (reference ≤ 200 µg/L). These are indicator parameters with reference values, not legal limits. “L'eau était, au moment du prélèvement, conforme aux normes bactériologiques fixées par la réglementation. Toutefois, la teneur en fer était supérieure à la référence de qualité de 200 µg/l., liée vraisemblablement aux conditions de prélèvement.”
How high are PFAS levels in Colombelles's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 15.1 ng/L. The EU limit is 100 ng/L, so this water is at 15 % of the limit. (below the EU limit)
Does the water in Colombelles also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 4.5 ng/L. That is 1.13 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 Colombelles'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 Colombelles?
The water hardness in Colombelles is 17.9 °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 21 September 2026.
Same water network
Same distribution network as Colombelles, so in principle the same water.
Nearby communes
The closest to Colombelles 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=14167
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- PLATEAU COLOMBELLES
Water report for Colombelles
Get new PFAS results for Colombelles, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.