Drinking water quality in Longvic
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (23 February 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.
15 PFAS (see each substance)
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0005 µg/L |
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Official assessment
The latest official test passed all quality requirements.
„Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Lead | 8 µg/L | ≤ 10 µg/L | within limit |
| Nickel | 10 µg/L | ≤ 20 µg/L | within limit |
Show all 21 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 9.1 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | 8 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.159 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | 10 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | <3 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within limit |
| Chromium | <2 µg/L | ≤ 50 µg/L | within limit |
| Uranium | <1 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.052 mg/L | ≤ 1.5 mg/L | within limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within limit |
| pH | 7.7 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 30.1 °f | no limit | informational |
| Electrical conductivity | 523 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 9 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 19.3 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 22.2 mg/L | ≤ 200 mg/L | within limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,50 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Longvic safe to drink?
Yes. The latest official test (10 June 2026) checked the tap water in Longvic and it passed every requirement.
How high are PFAS levels in Longvic's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL 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 Longvic 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 Longvic?
The water hardness in Longvic is 30.1 °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 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=21355
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- DIJON METROPOLE, R. LONGVIC-OUGES, DIJON METROPOLE, LONGVIC-RTE DE DIJON
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.