Lakes in Aargau, Switzerland
Find lakes in Aargau: county page for 1 named lakes in Switzerland. Official surface phosphorus, chlorophyll-a, and Secchi — not a swim-safety class and not a LakeQuality letter.
Lake map
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Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Hallwilersee | Aargau | — | — | 4.4 m | 2023 |
Frequently asked questions
- How many named lakes are in Aargau?
- 1 named lakes in Aargau, Switzerland, have official Secchi, 2023. Values are measurements, not a LakeQuality A–F grade.
- Does LakeQuality grade lakes in Aargau?
- No. Aargau pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.