How Clean Is Rifle Lake?
Rifle 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): 4.8 ft. Trophic State Index: 55.
Cleanliness Snapshot
| Metric | Rifle Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 4.8 ft | — |
| Trophic State Index | 55 | <50 = clean |
How does Rifle Lake compare?
Rifle Lake's grade of D falls below the Minnesota state average of C. It ranks #128 of 142 lakes in Lake County by water quality score. Multi-year monitoring data shows water quality is improving based on 4 years of records.