How Clean Is Hazel Hill Lake by Dam?
Hazel Hill Lake by Dam 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 ft. Phosphorus: 59.3 µg/L. Chlorophyll-a (algae): 28 µg/L. Trophic State Index: 64.
Cleanliness Snapshot
| Metric | Hazel Hill Lake by Dam | Wisconsin avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 2 ft | — |
| Phosphorus | 59.3 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 28 µg/L | <10 = clean |
| Trophic State Index | 64 | <50 = clean |
How does Hazel Hill Lake by Dam compare?
Hazel Hill Lake by Dam's grade of D falls below the Wisconsin state average of C. It ranks #4 of 5 lakes in Johnson County by water quality score.