How Clean Is Lake of Egypt?
Lake of Egypt 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): 3.2 ft. Phosphorus: 26 µg/L. Trophic State Index: 56.
Cleanliness Snapshot
| Metric | Lake of Egypt | Wisconsin avg |
|---|---|---|
| Overall Grade | C | D |
| Water Clarity (Secchi) | 3.2 ft | — |
| Phosphorus | 26 µg/L | <30 = clean |
| Trophic State Index | 56 | <50 = clean |
How does Lake of Egypt compare?
Lake of Egypt's grade of C matches or beats the Wisconsin state average of D. It ranks #1 of 1 lakes in Williamson County by water quality score.