How Clean Is Lake Wingra?
Lake Wingra 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): 4 ft. Phosphorus: 33.8 µg/L. Trophic State Index: 56.
Cleanliness Snapshot
| Metric | Lake Wingra | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 4 ft | — |
| Phosphorus | 33.8 µg/L | <30 = clean |
| Trophic State Index | 56 | <50 = clean |
How does Lake Wingra compare?
Lake Wingra's grade of C matches or beats the Wisconsin state average of C. It ranks #4 of 21 lakes in Dane County by water quality score. Multi-year monitoring data shows water quality is declining based on 5 years of records.