How Clean Is Norway Lake?
Norway 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): 6.6 ft. Phosphorus: 20.5 µg/L. Trophic State Index: 49.
Cleanliness Snapshot
| Metric | Norway Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6.6 ft | — |
| Phosphorus | 20.5 µg/L | <30 = clean |
| Trophic State Index | 49 | <50 = clean |
How does Norway Lake compare?
Norway Lake's grade of C matches or beats the Minnesota state average of C. It ranks #123 of 133 lakes in Cass County by water quality score. Multi-year monitoring data shows water quality is stable based on 2 years of records.