How Clean Is Norway Lake?
Norway 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): 6.9 ft. Phosphorus: 21 µg/L. Trophic State Index: 49.
Cleanliness Snapshot
| Metric | Norway Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 6.9 ft | — |
| Phosphorus | 21 µg/L | <30 = clean |
| Trophic State Index | 49 | <50 = clean |
How does Norway Lake compare?
Norway Lake's grade of B matches or beats the Minnesota state average of C. It ranks #114 of 132 lakes in Cass County by water quality score. Multi-year monitoring data shows water quality is stable based on 3 years of records.