How Clean Is Belcourt Inlet Lake?
Belcourt Inlet Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 3.3 ft. Chlorophyll-a (algae): 10.7 µg/L. Trophic State Index: 57.
Cleanliness Snapshot
| Metric | Belcourt Inlet Lake | North Dakota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 3.3 ft | — |
| Chlorophyll-a (Algae) | 10.7 µg/L | <10 = clean |
| Trophic State Index | 57 | <50 = clean |
How does Belcourt Inlet Lake compare?
Belcourt Inlet Lake's grade of D falls below the North Dakota state average of C. It ranks #11 of 14 lakes in Rolette County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.