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LakeQuality

Rothsee

NR
Not yet rated
2.5 m clear · Eutrophic
Limited DataEutrophic

Rothsee in Roth, Bavaria has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.5 m visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 4 µg/L.

Clarity
2.5 m
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Why Rothsee has no A–F grade

Rothsee in Bavaria is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).

A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.

Monitoring: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst.

Rothsee is a lake in Roth County, Bavaria.

Source: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst — not the EPA Water Quality Portal, last sampled 2024-11-20. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

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Water quality measurements for Rothsee

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Moderate clarity, visible to about 8 ft. Phosphorus level: 44 µg/L. Chlorophyll-a: 4 µg/L. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)2.45 mNot graded
Phosphorus44 µg/LNot graded
Chlorophyll-a (Algae)4 µg/LNot graded
Trophic State Index (TSI)50Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Rothsee

Compare lakeside cabins, hotels, and vacation rentals near Rothsee in Roth, 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 Rothsee

Frequently asked questions about Rothsee

What is the water quality of Rothsee?

Rothsee in Roth, Bavaria has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 2.5 m visibility. Phosphorus: 44 µg/L. Chlorophyll-a (algae): 4 µg/L.

Is Rothsee safe to swim in?

Rothsee 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.

Where this data comes from

131 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 Dienstgkd-by131 samples ·

Analytical methods

  • LfU Bayern GKD lake chemistry
Monitoring station identifiers (1)
  • 2207

Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.

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