How Clean Is Aspen Lake Along Southern Arm?
Aspen Lake Along Southern Arm has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 3.8 ft. Phosphorus: 20.8 µg/L. Chlorophyll-a (algae): 5.3 µg/L. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Aspen Lake Along Southern Arm | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 3.8 ft | — |
| Phosphorus | 20.8 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 5.3 µg/L | <10 = clean |
| Trophic State Index | 51 | <50 = clean |
How does Aspen Lake Along Southern Arm compare?
Aspen Lake Along Southern Arm's grade of C matches or beats the Wisconsin state average of C. It ranks #8 of 16 lakes in Warren County by water quality score.