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LakeQuality

Salem Lake in Marion County leads the rankings on measured clarity and nutrients and 1 ft of clarity. Below are the top 5 cleanest monitored lakes in Marion County, Illinois, ranked on EPA nutrient and algae measurements.

Ranked List

#LakeCountyClarityPhosphorusAlgae
1Salem LakeMarion1 ft234 µg/L77.5 µg/L
2Lake CentraliaMarion---
3Forbes LakeMarion---
4Salem ReservoirMarion---
5C and EI ReservoirMarion---

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