
How Clean Is Plum Lake?
Plum Lake is a clean lake by Wisconsin standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 14.2 ft. Phosphorus: 13 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Plum Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 14.2 ft | — |
| Phosphorus | 13 µg/L | <30 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Plum Lake compare?
Plum Lake's readings match or beat the Wisconsin state average. It ranks #7 of 103 lakes in Vilas County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 7 years of records.
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