Drinking water quality in Guignes
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.
7 PFAS (see each substance)
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
Water report for Guignes
Get the free water report for Guignes, plus an alert whenever new official results are published.
Official assessment
The latest official test failed at least one quality requirement.
„Eau d’alimentation non conforme aux limites de qualité mais conforme aux valeurs dérogatoires pour les paramètres Atrazine déséthyl déisopropyl, Chloridazone desphényl, Chloridazone méthyl desphényl, Chlorothalonil R417888 et la somme totale des pesticides analysés sans dépassement des seuils sanitaires. Eau d’alimentation non conforme aux limites de qualité pour le paramètre Atrazine déséthyl sans dépassement du seuil sanitaire. Eau d’alimentation présentant un dépassement de la valeur indicative pour le paramètre Chlorothalonil R471811(métabolite non pertinent). En l’état actuel des connaissances scientifiques, aucune restriction d’usage n’est nécessaire. Un suivi renforcé est mis en place pour surveiller l’évolution de la situation. La personne responsable de la distribution de l’eau doit engager un programme d’actions visant à réduire les teneurs des paramètres concernés. Les autres paramètres recherchés dans le cadre du contrôle sanitaire sont conformes aux exigences du code de la santé publique.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 43.5 mg/L | ≤ 50 mg/L | within limit |
Show all 16 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 43.5 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within limit |
| Chromium | <5 µg/L | ≤ 50 µg/L | within limit |
| Uranium | <10 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.19 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 | 34.09 °f | no limit | informational |
| Electrical conductivity | 686 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 33.4 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 36.8 mg/L | ≤ 250 mg/L | within limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.13 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Guignes safe to drink?
The latest official test failed at least one quality requirement.
How high are PFAS levels in Guignes'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 Guignes 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 Guignes?
The water hardness in Guignes is 34.09 °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=77222
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- GUIGNES - CDC BRC
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.