Where is Alpsee Bei Schwangau?

Alpsee Bei Schwangau is a lake in Ostallgäu, Bavaria. This page reports official water-quality measurements, shown as reported.

Is Alpsee Bei Schwangau safe to swim in?

Alpsee Bei Schwangau 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.

Alpsee Bei Schwangau

Ostallgäu, BavariaView map Directions

LfU publishes the water-quality measurements for Alpsee Bei Schwangau. Here is what has been measured.

Clarity

11 m

Clearer than most

Secchi · sampled 2023

Phosphorus

5 µg/L

Less phosphorus than most

Measured by LfU

Chlorophyll-a

2 µg/L

Typical for Bavaria

Measured by LfU

Limited data

See the measurements Directions Where to stay

Alpsee Bei Schwangau in Ostallgäu, Bavaria has official water-quality measurements, shown as reported. Water clarity: 11 m visibility. Phosphorus: 5 µg/L. Chlorophyll-a (algae): 2 µg/L.

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How Alpsee Bei Schwangau is classified

Alpsee Bei Schwangau 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.

Alpsee Bei Schwangau is a lake in Ostallgäu County, Bavaria.

Source: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst — not the EPA Water Quality Portal, last sampled 2023-11-28. Methodology: how these readings are compared.

What Alpsee Bei Schwangau is good for

From access and monitoring records, not editorial picks.

Clear water36.1 ft of visibility

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Alpsee Bei Schwangau 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.

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Water quality measurements for Alpsee Bei Schwangau

These are the measurements LfU publishes for Alpsee Bei Schwangau. More on the source.

Crystal clear, you can see 36.1 ft down. Phosphorus 5 µg/L. Chlorophyll-a 2 µg/L. TSI 30.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	11m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	5µg/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.	30	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Alpsee Bei Schwangau

Answers come straight from the public measurements and survey records on this page.

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Stays near Alpsee Bei Schwangau

Compare lakeside cabins, hotels, and vacation rentals near Alpsee Bei Schwangau in Ostallgäu, Bavaria — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Fishing Alpsee Bei Schwangau

→ Alpsee Bei Schwangau fishing regulations (limits, seasons, special rules)

Frequently asked questions about Alpsee Bei Schwangau

Where is Alpsee Bei Schwangau?: Alpsee Bei Schwangau is a lake in Ostallgäu, Bavaria. This page reports official water-quality measurements, shown as reported.
What is the water quality of Alpsee Bei Schwangau?: Alpsee Bei Schwangau in Ostallgäu, Bavaria has official water-quality measurements, shown as reported. Water clarity: 11 m visibility. Phosphorus: 5 µg/L. Chlorophyll-a (algae): 2 µg/L.
Is Alpsee Bei Schwangau safe to swim in?: Alpsee Bei Schwangau 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

56 measurements from 1 monitoring station, 2017–2023. 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 Dienstgkd-by56 samples · —

Analytical methods

LfU Bayern GKD lake chemistry

Monitoring station identifiers (1)

2134

Authority classifications are shown as the authority published them. See where the data comes from and data sources.