Drinking water quality in Lherm
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <0,044 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (7 October 2025)
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.
17 PFAS (see each substance)
| Acide perfluorohexanoïque (PFHXA) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0015 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0015 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0015 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0015 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0015 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0015 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0015 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0015 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0015 µg/L |
Water report for Lherm
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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.“
Show all 15 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 2.2 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,03 mg/L | ≤ 0.5 mg/L | within limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within limit |
| Fluoride | <0,1 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 | 8.2 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 8.5 °f | no limit | informational |
| Electrical conductivity | 187 µS/cm | 200–1,100 µS/cm | exceeded |
| Chloride | 5.3 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 11 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 22 mg/L | ≤ 200 mg/L | within limit |
| Iron | <1 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.11 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Lherm safe to drink?
Yes. The latest official test (8 June 2026) checked the tap water in Lherm and it passed every requirement.
How high are PFAS levels in Lherm's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <0,044 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 Lherm 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 Lherm?
The water hardness in Lherm is 8.5 °f (soft). 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=31299
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- COTEAUX DU TOUCH LHERM
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.