How Clean Is Petenwell Flowage Lake?
Petenwell Flowage Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 2.3 ft. Phosphorus: 81.7 µg/L. Trophic State Index: 66.
Cleanliness Snapshot
| Metric | Petenwell Flowage Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 2.3 ft | — |
| Phosphorus | 81.7 µg/L | <30 = clean |
| Trophic State Index | 66 | <50 = clean |
How does Petenwell Flowage Lake compare?
Petenwell Flowage Lake's grade of D falls below the Wisconsin state average of C. It ranks #1 of 2 lakes in Juneau County by water quality score. Multi-year monitoring data shows water quality is declining based on 5 years of records.