How Clean Is Norway Lake?
Norway Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 6.9 ft. Phosphorus: 21 µg/L. Chlorophyll-a (algae): 5.1 µg/L. Trophic State Index: 48.
Cleanliness Snapshot
| Metric | Norway Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 6.9 ft | — |
| Phosphorus | 21 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 5.1 µg/L | <10 = clean |
| Trophic State Index | 48 | <50 = clean |
How does Norway Lake compare?
Norway Lake's readings match or beat the Minnesota state average. It ranks #9 of 104 lakes in Cass County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 3 years of records.
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