How Clean Is Petenwell Flowage Lake?
Petenwell 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): 7.8 ft. Phosphorus: 81.7 µg/L. Trophic State Index: 58.
Cleanliness Snapshot
| Metric | Petenwell Flowage Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | B |
| Water Clarity (Secchi) | 7.8 ft | — |
| Phosphorus | 81.7 µg/L | <30 = clean |
| Trophic State Index | 58 | <50 = clean |
How does Petenwell Flowage Lake compare?
Petenwell Flowage Lake's grade of C falls below the Wisconsin state average of B. It ranks #1 of 2 lakes in Juneau County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.