How Clean Is Fourth Crow Wing Lake?
Fourth Crow Wing Lake is a clean lake by Minnesota standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 8 ft. Phosphorus: 22 µg/L. Trophic State Index: 48.
Cleanliness Snapshot
| Metric | Fourth Crow Wing Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 8 ft | — |
| Phosphorus | 22 µg/L | <30 = clean |
| Trophic State Index | 48 | <50 = clean |
How does Fourth Crow Wing Lake compare?
Fourth Crow Wing Lake's grade of B matches or beats the Minnesota state average of C. It ranks #67 of 77 lakes in Hubbard County by water quality score. Multi-year monitoring data shows water quality is stable based on 5 years of records.