How Clean Is Itasca Lake?
Itasca 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): 6.3 ft. Phosphorus: 28 µg/L. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Itasca Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6.3 ft | — |
| Phosphorus | 28 µg/L | <30 = clean |
| Trophic State Index | 51 | <50 = clean |
How does Itasca Lake compare?
Itasca Lake's grade of C matches or beats the Minnesota state average of C. It ranks #37 of 40 lakes in Clearwater County by water quality score. Multi-year monitoring data shows water quality is declining based on 2 years of records.