PFAS in Boux-sous-Salmaise's tap water: under 2.5 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
No PFAS detected
The lab sees nothing below 2.5 ng/L, 5 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.
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.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
The lab detects each of the four substances from 0.5 to 1 ng/L upward. None reached that limit, so their total is below 2.5 ng/L rather than zero.
checked on 8 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,002 µg/L |
None found. The lab sees nothing below 2.5 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Boux-sous-Salmaise
Get new PFAS results for Boux-sous-Salmaise, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 8 June 2026
- Water supplier
- MAIRIE DE BOUX SOUS SALMAISE
In Boux-sous-Salmaise, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 8 June 2026. The total is below 2.5 ng/L, the sum of the detection limits and 5 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). 2 checks since 8 April 2026, PFAS-4 always 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 Boux-sous-Salmaise
2 PFAS checks since 8 April 2026, values as published. Samples come from 2 distribution networks. The trend refers to the network “BOUX, RESEAU PRINCIPAL ET BOUZOT”.
| Date | PFAS-4 | Sum of 20 PFAS | Network |
|---|---|---|---|
| < detection limit | < detection limit | BOUX, RESEAU PRINCIPAL ET BOUZOT, BOUX, RESEAU PRINCIPAL ET BOUZOT | |
| < detection limit | < detection limit | BOUX, R. DE PRESILLY |
“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. 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.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 40.4 mg/L | ≤ 50 mg/L | within the limit |
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 40.4 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <3 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.033 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <2 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <3 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <2 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | <1 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.067 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 7.7 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 33.2 °f | no limit | for reference |
| Electrical conductivity | 586 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 5.2 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 22.5 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 2.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,50 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Boux-sous-Salmaise safe to drink?
Yes. At the check on 23 July 2026, the tap water in Boux-sous-Salmaise was within every limit tested. “Référence de qualité non satisfaite (indicateur de qualité) pour le paramètre Spores de micro-organismes sulfitoréducteurs. Surveiller la désinfection. La teneur en nitrates est conforme à la limite de qualité. Dans l'attente d'une diminution durable de la concentration en nitrates dan s l'eau, l'interdiction de consommer cette eau pour les femmes enceint es et les nourrissons de moins de 6 mois est maintenue. Conformément à l'arrêté préfectoral du 24/11/2021, un plan d'actions doit être engagé pour rétablir de manière pérenne la qualité de l'eau pour le paramètre nitrates. s.”
How high are PFAS levels in Boux-sous-Salmaise's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at –. The EU limit is 100 ng/L, so this water is at – of the limit. (below the EU limit)
Does the water in Boux-sous-Salmaise also meet the strictest limits in Europe?
As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 2.5 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.
Are PFAS levels rising in Boux-sous-Salmaise's tap water?
Too few quantified checks to say (0 since 8 April 2026). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.
How hard is the water in Boux-sous-Salmaise?
The water hardness in Boux-sous-Salmaise is 33.2 °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 21 September 2026.
Nearby communes
The closest to Boux-sous-Salmaise 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=21098
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- BOUX, RESEAU PRINCIPAL ET BOUZOT, BOUX, R. DE PRESILLY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.