How Clean Is Lake James?
Lake James 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): 6.8 ft. Trophic State Index: 50.
Cleanliness Snapshot
| Metric | Lake James | Michigan avg |
|---|---|---|
| Overall Grade | C | B |
| Water Clarity (Secchi) | 6.8 ft | — |
| Trophic State Index | 50 | <50 = clean |
How does Lake James compare?
Lake James's grade of C falls below the Michigan state average of B. It ranks #5 of 6 lakes in Roscommon County by water quality score. Multi-year monitoring data shows water quality is improving based on 2 years of records.