How Clean Is Watkins Mill Lake?
Watkins Mill 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): 3.2 ft. Phosphorus: 41 µg/L. Chlorophyll-a (algae): 18.2 µg/L. Trophic State Index: 59.
Cleanliness Snapshot
| Metric | Watkins Mill Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 3.2 ft | — |
| Phosphorus | 41 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 18.2 µg/L | <10 = clean |
| Trophic State Index | 59 | <50 = clean |
How does Watkins Mill Lake compare?
Watkins Mill Lake's grade of D falls below the Wisconsin state average of C. It ranks #1 of 9 lakes in Clay County by water quality score.