Rottachsee
Oberallgäu, BavariaView mapDirections
LfU publishes the water-quality measurements for Rottachsee. Here is what has been measured.
- Limited data
Rottachsee in Oberallgäu, Bavaria has official water-quality measurements, shown as reported. Water clarity: 2.9 m visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2 µg/L.
How Rottachsee is classified
Rottachsee in Bavaria is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst.
Rottachsee is a lake in Oberallgäu County, Bavaria.
Source: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst — not the EPA Water Quality Portal, last sampled 2024-11-26. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Rottachsee is safe to swim in today is a call for the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Rottachsee
These are the measurements LfU publishes for Rottachsee. More on the source.
Moderate clarity, visible to about 9.5 ft. Phosphorus 14 µg/L. Chlorophyll-a 2 µg/L. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.9m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 14µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 2µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Frequently asked questions about Rottachsee
Where is Rottachsee?
- Rottachsee is a lake in Oberallgäu, Bavaria. This page reports official water-quality measurements, shown as reported.
What is the water quality of Rottachsee?
- Rottachsee in Oberallgäu, Bavaria has official water-quality measurements, shown as reported. Water clarity: 2.9 m visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2 µg/L.
Is Rottachsee safe to swim in?
- Rottachsee has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
99 measurements from 1 monitoring station, 2018–2024. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- Bayerisches Landesamt für Umwelt (LfU) — Gewässerkundlicher Dienst
gkd-by99 samples · —
Analytical methods
- LfU Bayern GKD lake chemistry
Monitoring station identifiers (1)
2232
Authority classifications are shown as the authority published them. See where the data comes from and data sources.