How Clean Is Nygren Dam Lake?
Nygren Dam 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): 2.6 ft. Chlorophyll-a (algae): 24.7 µg/L. Trophic State Index: 63.
Cleanliness Snapshot
| Metric | Nygren Dam Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 2.6 ft | — |
| Chlorophyll-a (Algae) | 24.7 µg/L | <10 = clean |
| Trophic State Index | 63 | <50 = clean |
How does Nygren Dam Lake compare?
Nygren Dam Lake's grade of D falls below the Wisconsin state average of C. It ranks #1 of 4 lakes in Morton County by water quality score.