How Clean Is Harrison County Lake?
Harrison County Lake has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 1.5 ft. Phosphorus: 70 µg/L. Chlorophyll-a (algae): 134.4 µg/L. Trophic State Index: 72.
Cleanliness Snapshot
| Metric | Harrison County Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 1.5 ft | — |
| Phosphorus | 70 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 134.4 µg/L | <10 = clean |
| Trophic State Index | 72 | <50 = clean |
How does Harrison County Lake compare?
Harrison County Lake's grade of F falls below the Wisconsin state average of C. It ranks #3 of 3 lakes in Harrison County by water quality score.