PFAS in Rastatt's tap water: 1 ng/L, 2x our 0.5 ng/L benchmark
Last PFAS check: · Source: Stadtwerke Rastatt
PFAS in drinking water
2× above our health benchmark
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.
The PFAS figures come from the sampling point "Wasserwerk Ottersdorf", the one with the highest PFAS-4 value among the 2 waterworks or sampling points serving Rastatt. The others are in the table of all values; the tap often carries a blend of several works.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 52% of the cities we track
checked on 10 March 2026
Above our health benchmark. Here are some filter options.
- Legal limit (Germany and EU)
- 33 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 10 March 2026
- Water supplier
- Stadtwerke Rastatt
In Rastatt, the 4 most closely watched PFAS (PFAS-4) add up to 1 ng/L (0.001 µg/L) at the latest PFAS check on 10 March 2026. That's 2 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 33 ng/L (0.033 µg/L), below the EU legal limit (100 ng/L). Source: Stadtwerke Rastatt – Trinkwasseranalyse (Stand 2026-03-10).
Details and sources
What the latest check found
The authorities have not published an overall verdict for this water.
Values to watch
These results are close to their legal limit, or over it.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 31.4 mg/L | ≤ 50 mg/L | within the limit |
See all 10 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · sampling point Wasserwerk Rauental | not quantified | ≤ 0.004 µg/L | within the limit |
| Sum of 20 PFAS · sampling point Wasserwerk Rauental | 0.034 µg/L | ≤ 0.1 µg/L | within the limit |
| Nitrate | 31.4 mg/L | ≤ 50 mg/L | within the limit |
| pH | 8.07 | 6.5–9.5 | within the limit |
| Water hardness | 10.4 ° dH | no limit | for reference |
| Electrical conductivity | 408 µS/cm | ≤ 2,790 µS/cm | within the limit |
| Chloride | 19.4 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 33 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 13 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <0,01 mg/L | ≤ 0.2 mg/L | within the limit |
Frequently asked questions
Is tap water in Rastatt safe to drink?
All the values shown here (10 March 2026) are within the legal limits, but the authorities have not published an overall verdict for this water.
How high are PFAS levels in Rastatt's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 33 ng/L. The EU limit is 100 ng/L, so this water is at 33 % of the limit. (below the EU limit)
Does the water in Rastatt also meet the strictest limits in Europe?
Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 1 ng/L stays below.
Which PFAS limits apply in Germany?
Germany's Trinkwasserverordnung of 2023 adopts the EU limit of 100 ng/L for the sum of 20 PFAS, binding since 12 January 2026. For the four most harmful PFAS (PFAS-4) a limit of 20 ng/L applies from 12 January 2028. This site's 0.5 ng/L benchmark and the 4 ng/L used as the health reference (Sweden's limit) are stricter than both.
How hard is the water in Rastatt?
The water hardness in Rastatt is 10.4 ° dH (medium). This mainly matters for household appliances and detergent dosing, not for health.
Where does this data come from?
All values come from official publications: Stadtwerke Rastatt – Trinkwasseranalyse (Stand 2026-03-10). Retrieved on 28 September 2026.
Nearby cities
The closest to Rastatt on this site.
Data source
- Stadtwerke Rastatt – Trinkwasseranalyse (Stand 2026-03-10)
- https://www.stadtwerke-rastatt.de/de/tarife-produkte/wasser/
- License
- Stadtwerke Rastatt; die Analyse ist im Open-Data-Portal re@di / GovData unter CC BY 4.0 veröffentlicht (Ausgabe 2024), die Website-Tabelle ohne eigene Lizenzangabe
- Retrieved
- 28 September 2026
- Supply networks
- Wasserwerk Ottersdorf, Wasserwerk Rauental
Stadtwerke Rastatt: Drinking-water analysis per waterworks (HTML table; 2024 edition as open data under CC BY 4.0). Latest value dated 10 March 2026. Annually, expected in March.
Limits in Germany. Germany's Trinkwasserverordnung of 2023 adopts the EU limit of 100 ng/L for the sum of 20 PFAS, binding since 12 January 2026. For the four most harmful PFAS (PFAS-4) a limit of 20 ng/L applies from 12 January 2028. This site's 0.5 ng/L benchmark and the 4 ng/L used as the health reference (Sweden's limit) are stricter than both.
Trinkwasseranalyse der Stadtwerke Rastatt je Wasserwerk (HTML-Tabelle, Stand 2026-03-10), Reinwasserabgang der Werke Ottersdorf und Rauental, PFAS in µg/L. Rastatt ist ein PFAS-Belastungsgebiet (Kompost-Eintrag in Mittelbaden); die Werke werden mit Aktivkohle aufbereitet. Für Rastatt liegen 2 Werke bzw. Messstellen vor (Wasserwerk Ottersdorf, Wasserwerk Rauental). Die PFAS-Kennzahl der Seite stammt aus „Wasserwerk Ottersdorf“, der Messstelle mit dem höchsten PFAS-4-Wert; die übrigen stehen in der Tabelle. Nächste Aktualisierung: Trinkwasseranalyse 2027, voraussichtlich im März 2027
Water report for Rastatt
Get new PFAS results for Rastatt, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.