How Clean Is Gile Flowage Lake?
Gile Flowage Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 4.6 ft. Phosphorus: 30.2 µg/L. Trophic State Index: 54.
Cleanliness Snapshot
| Metric | Gile Flowage Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | B |
| Water Clarity (Secchi) | 4.6 ft | — |
| Phosphorus | 30.2 µg/L | <30 = clean |
| Trophic State Index | 54 | <50 = clean |
How does Gile Flowage Lake compare?
Gile Flowage Lake's grade of C falls below the Wisconsin state average of B. It ranks #16 of 16 lakes in Iron County by water quality score. Multi-year monitoring data shows water quality is improving based on 6 years of records.
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