How Clean Is Strup Lake?
Strup 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): 9.7 ft. Trophic State Index: 44.
Cleanliness Snapshot
| Metric | Strup Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 9.7 ft | — |
| Trophic State Index | 44 | <50 = clean |
How does Strup Lake compare?
Strup Lake's grade of C matches or beats the Minnesota state average of C. It ranks #104 of 142 lakes in Lake County by water quality score. Multi-year monitoring data shows water quality is declining based on 4 years of records.