pfasnearmeDrinking water quality from official sources

PFAS in Blotzheim's tap water: under 8 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 8 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 8 ng/L, 16 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.

How we chose 0.5 ng/L

More about this result
Legal limit in Sweden (since 2026) no verdict
finer than the lab's detection limit < 8 ng/L · Limit: 4 ng/L
Limit in Denmark (since 2021) no verdict
finer than the lab's detection limit < 8 ng/L · Limit: 2 ng/L
Limit in Germany (from 2028) within the limit
below this limit < 8 ng/L · Limit: 20 ng/L

The US also limits PFOA and PFOS to 4 ng/L each, per substance.

The lab detects each of the four substances from 2 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.

EU legal limit within the limit
under 5 % of the EU limit <0,005 µg/L · Limit: 0.1 µg/L

checked on 27 July 2026

20 PFAS (see each substance)
PFAS substance Value
Perfluorohexane sulfonate (PFHXS) <0,002 µg/L
Acide perfluoropentanoïque (PFPEA) <0,005 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,002 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,002 µg/L
Acide perfluorododécanoique (PFDoDA) <0,002 µg/L
Acide perfluoro-octanoïque (PFOA) <0,002 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,002 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,002 µg/L
Acide perfluorohexanoïque (PFHXA) <0,005 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,002 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,002 µg/L
Acide perfluorobutanoïque (PFBA) <0,005 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,002 µg/L

None found. The lab sees nothing below 8 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
27 July 2026
Water supplier
VEOLIA EAU

In Blotzheim, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 27 July 2026. The total is below 8 ng/L, the sum of the detection limits and 16 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,005 µg/L, below the EU legal limit (100 ng/L). 38 checks since 22 January 2024: sum of 20 PFAS up to 720 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: VEOLIA EAU Latest water check: 27 July 2026 Data updated on

PFAS over time in Blotzheim

38 PFAS checks since 22 January 2024, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Blotzheim. Samples come from 2 distribution networks. The trend refers to the network “BLOTZHEIM”.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

720 ng/L022 January 202427 July 2026
Laboratory-published sum of 20 PFAS per check in ng/L. Hollow dots: below the detection limit. Calculated PFAS-4 values are listed in the table.
DatePFAS-4Sum of 20 PFASSampled atNetwork
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated79 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated40 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated13 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheim068001083
< 8 ng/L · calculated26 ng/LSaint-LouisBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
Show the 26 earlier checks (back to 22 January 2024)
< 8 ng/L · calculated27 ng/LSaint-LouisBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheim068001083
< 8 ng/L · calculated< 5 ng/LBlotzheimBLOTZHEIM
< 8 ng/L · calculated6 ng/LSaint-LouisBLOTZHEIM
< 8 ng/L · calculated< 5 ng/LBlotzheim068001083
46 ng/L – < 48 ng/L · calculated610 ng/LBlotzheimBLOTZHEIM
61 ng/L – < 63 ng/L · calculated720 ng/LBlotzheimBLOTZHEIM
29 ng/L – < 31 ng/L · calculated370 ng/LBlotzheimBLOTZHEIM
32 ng/L – < 34 ng/L · calculated310 ng/LBlotzheimBLOTZHEIM
39 ng/L – < 41 ng/L · calculated430 ng/LBlotzheimBLOTZHEIM
10 ng/L – < 14 ng/L · calculated280 ng/LBlotzheimBLOTZHEIM
15 ng/L – < 17 ng/L · calculated400 ng/LBlotzheimBLOTZHEIM
34 ng/L – < 36 ng/L · calculated350 ng/LBlotzheimBLOTZHEIM
20 ng/L – < 22 ng/L · calculated350 ng/LBlotzheimBLOTZHEIM
3.2 ng/L – < 5.2 ng/L · calculated27 ng/LBlotzheimBLOTZHEIM
24.5 ng/L – < 25.5 ng/L · calculated327.1 ng/LBlotzheimBLOTZHEIM
31.9 ng/L – < 32.9 ng/L · calculated327.6 ng/LBlotzheimBLOTZHEIM
63.4 ng/L · calculated459.8 ng/LBlotzheimBLOTZHEIM
55.9 ng/L · calculated456.1 ng/LBlotzheimBLOTZHEIM
34.6 ng/L – < 39.6 ng/L · calculated239.8 ng/LBlotzheimBLOTZHEIM
41.9 ng/L – < 43.9 ng/L · calculated235.1 ng/LBlotzheimBLOTZHEIM
52.4 ng/L – < 53.4 ng/L · calculated424.1 ng/LBlotzheimBLOTZHEIM
42.6 ng/L · calculated362.1 ng/LBlotzheimBLOTZHEIM
–365.9 ng/LBlotzheimBLOTZHEIM
43.1 ng/L – < 44.1 ng/L · calculated376.4 ng/LBlotzheimBLOTZHEIM
55.5 ng/L · calculated432.2 ng/LBlotzheimBLOTZHEIM

Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. How to read a PFAS result

What the latest check found

At the latest check, the water was within every limit tested.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

What was tested Value Limit Status
Nitrate 46 mg/L ≤ 50 mg/L within the limit
See all 20 test results
What was tested Value Limit Status
Nitrate 46 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead 1.15 µg/L ≤ 10 µg/L within the limit
Copper 0.033 mg/L ≤ 2 mg/L within the limit
Nickel <0,5 µg/L ≤ 20 µg/L within the limit
Arsenic 0.21 µg/L ≤ 10 µg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/L within the limit
Fluoride 0.1 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli <1 n/(100mL) ≤ 0 mL) within the limit
Enterococci <1 n/(100mL) ≤ 0 mL) within the limit
Coliform bacteria <1 n/(100mL) ≤ 0 mL) within the limit
pH 7.2 unité pH 6.5–9 unité pH within the limit
Water hardness 41 °f no limit for reference
Electrical conductivity 760 µS/cm 200–1,100 µS/cm within the limit
Chloride 31 mg/L ≤ 250 mg/L within the limit
Sulphate 19 mg/L ≤ 250 mg/L within the limit
Sodium 6.9 mg/L ≤ 200 mg/L within the limit
Iron 1 µg/L ≤ 200 µg/L within the limit
Turbidity <0,1 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Blotzheim safe to drink?

Yes. At the check on 27 July 2026, the tap water in Blotzheim was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Blotzheim's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 5 ng/L. The EU limit is 100 ng/L, so this water is under 5 % of the limit. (below the EU limit)

Does the water in Blotzheim also meet the strictest limits in Europe?

The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 8 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

Are PFAS levels rising in Blotzheim's tap water?

Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.

How hard is the water in Blotzheim?

The water hardness in Blotzheim is 41 °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 Blotzheim on this site.

Michelbach-le-Bas
PFAS-4: below 8 ng/L 2 km away
Brinckheim
PFAS-4: 6 ng/L 3 km away
Hésingue
PFAS-4: below 8 ng/L 3 km away
Bartenheim
PFAS-4: 2 ng/L 3 km away
Ranspach-le-Bas
PFAS-4: 6 ng/L 4 km away

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=68042
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
BLOTZHEIM

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.