Roscommon, Ireland
County page for 9 named lakes in Ireland. 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 |
|---|---|---|---|---|---|
| Annaghmore Lough | Roscommon | 11 µg/L | 3.4 µg/L | — | 2023 |
| Lough Boderg | Roscommon | 23 µg/L | 4.9 µg/L | — | 2022 |
| Lough Cavetown | Roscommon | 25 µg/L | 2.3 µg/L | — | 2023 |
| Lough Glinn | Roscommon | 41 µg/L | 12 µg/L | — | 2022 |
| Lough Grange | Roscommon | 26 µg/L | 17 µg/L | — | 2022 |
| Lough Key | Roscommon | 19 µg/L | 4.2 µg/L | — | 2022 |
| Lough Meelagh | Roscommon | 15 µg/L | 2.8 µg/L | — | 2023 |
| Lough Oflynn | Roscommon | 14 µg/L | 2.0 µg/L | — | 2023 |
| Lough Ree | Roscommon | 16 µg/L | 3.5 µg/L | — | 2022 |
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