Drinking water quality in Briançon
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (26 May 2026)
The four most harmful PFAS add up to 0 µg/L, below the health limit of 0.004 µg/L used in Sweden since 2026.
Substances too small to measure count as 0, so the real total may be higher.
20 PFAS (see each substance)
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
Water report for Briançon
Get the free water report for Briançon, plus an alert whenever new official results are published.
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. Présence de coliformes totaux indiquant une vulnérabilité du réseau ou de la ressource.Ces bactéries sont naturellement présentes dans le sol, leur présence peut s'expliquer par un lessivage des sols lors d'un orage,une mauvaise filtration de l'eau captée, la présence de fuites sur le réseau. Je vous invite à prendre toutes les mesures nécessaires à la recherche de la cause de la pollution (visite de captage et des alentours, réservoirs, recherche de fuites...) et à prendre les mesures correctives afin d'y remédier (nettoyage des ouvrages, visite de la zone de drain,…).“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Coliform bacteria | 1 n/(100mL) | ≤ 0 mL) | exceeded |
Show all 21 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 0.8 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | <2 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.023 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | <2 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within limit |
| Chromium | N.M. µg/L | ≤ 6 µg/L | not assessed |
| Uranium | <10 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.11 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) | exceeded |
| pH | 8.04 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 23.01 °f | no limit | informational |
| Electrical conductivity | 381 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 2.4 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 111 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 2 mg/L | ≤ 200 mg/L | within limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.25 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Briançon safe to drink?
Yes. The latest official test (23 June 2026) checked the tap water in Briançon and it passed every requirement.
How high are PFAS levels in Briançon's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)
Does the water in Briançon also meet the strictest limits in Europe?
Yes. Even against Europe's strictest limit, the health limit of 0.004 µg/L used in Sweden since 2026, the measured value of 0 µg/L stays below.
How hard is the water in Briançon?
The water hardness in Briançon is 23.01 °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=05023
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- CHEF LIEU BRIANCON, CH.LIEU AU DESSUS RTE GRENOBLE, LE CHABAS, PRAMOREL, FONTENIL, HOPITAL, MALEFOSSE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.