How Clean Is Blue Spring Lake?
Blue Spring Lake 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): 6 ft. Phosphorus: 23.8 µg/L. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Blue Spring Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6 ft | — |
| Phosphorus | 23.8 µg/L | <30 = clean |
| Trophic State Index | 51 | <50 = clean |
How does Blue Spring Lake compare?
Blue Spring Lake's grade of C matches or beats the Wisconsin state average of C. It ranks #4 of 8 lakes in Jefferson County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.