How Clean Is Spiritwood Lake?
Spiritwood Lake is among the cleanest lakes in North Dakota. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 31 ft. Chlorophyll-a (algae): 5.5 µg/L. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Spiritwood Lake | North Dakota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 31 ft | — |
| Chlorophyll-a (Algae) | 5.5 µg/L | <10 = clean |
| Trophic State Index | 37 | <50 = clean |
How does Spiritwood Lake compare?
Spiritwood Lake's grade of A matches or beats the North Dakota state average of C. It ranks #1 of 7 lakes in Stutsman County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.