Drinking water quality in Niort
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at 0.0083 µg/L. The EU limit is 0.1 µg/L, so this water is at 8 % of the limit. (21 April 2026)
The four most harmful PFAS add up to 0.0041 µg/L. That is 1 times the health limit of 0.004 µg/L that Sweden made law in 2026. Germany will set a similar limit in 2028.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
Substances too small to measure count as 0, so the real total may be higher.
20 PFAS (see each substance)
| Acide perfluorohexanoïque (PFHXA) | 0.0042 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.0023 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.0018 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,05 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,025 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
Water report for Niort
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Official assessment
The latest official test passed all quality requirements.
„Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité : la température dépasse la référence de qua lité.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 36 mg/L | ≤ 50 mg/L | within limit |
Show all 21 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 36 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | 0.7 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.054 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | 7.8 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | 0.7 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | <0,02 µg/L | ≤ 5 µg/L | within limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within limit |
| Uranium | 0.49 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.16 mg/L | ≤ 1.5 mg/L | within limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within limit |
| Coliform bacteria | <1 n/(100mL) | ≤ 0 mL) | within limit |
| pH | 7.3 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 25.8 °f | no limit | informational |
| Electrical conductivity | 588 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 22 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 20 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 11 mg/L | ≤ 200 mg/L | within limit |
| Iron | 2 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,2 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Niort safe to drink?
Yes. The latest official test (30 June 2026) checked the tap water in Niort and it passed every requirement.
How high are PFAS levels in Niort's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 0.0083 µg/L. The EU limit is 0.1 µg/L, so this water is at 8 % of the limit. (below the EU limit)
Does the water in Niort also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 0.0041 µg/L. That is 1 times the health limit of 0.004 µg/L that Sweden made law in 2026. The water still passes the current EU limit (0.1 µg/L for the total of 20 PFAS).
How hard is the water in Niort?
The water hardness in Niort is 25.8 °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 28 August 2026.
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=79191
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- NIORT EAUX DU VIVIER, NIORT SOUCHÉ
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.