How Clean Is Hattie Lake?
Hattie 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): 9.8 ft. Phosphorus: 17 µg/L. Trophic State Index: 45.
Cleanliness Snapshot
| Metric | Hattie Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 9.8 ft | — |
| Phosphorus | 17 µg/L | <30 = clean |
| Trophic State Index | 45 | <50 = clean |
How does Hattie Lake compare?
Hattie Lake's grade of B matches or beats the Minnesota state average of C. It ranks #96 of 133 lakes in Cass County by water quality score. Multi-year monitoring data shows water quality is declining based on 4 years of records.