How Clean Is Split Rock Reservoir?
Split Rock Reservoir has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 1.3 ft. Phosphorus: 241 µg/L. Trophic State Index: 78.
Cleanliness Snapshot
| Metric | Split Rock Reservoir | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 1.3 ft | — |
| Phosphorus | 241 µg/L | <30 = clean |
| Trophic State Index | 78 | <50 = clean |
How does Split Rock Reservoir compare?
Split Rock Reservoir's grade of F falls below the Minnesota state average of C. It ranks #1 of 1 lakes in Pipestone County by water quality score. Multi-year monitoring data shows water quality is stable based on 2 years of records.