How Clean Is Roberds Lake?
Roberds Lake is algae-prone, with a higher bloom risk in warm months. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.5 ft. Phosphorus: 300 µg/L. Chlorophyll-a (algae): 86.7 µg/L. Trophic State Index: 75.
Cleanliness Snapshot
| Metric | Roberds Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.5 ft | — |
| Phosphorus | 300 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 86.7 µg/L | <10 = clean |
| Trophic State Index | 75 | <50 = clean |
How does Roberds Lake compare?
Roberds Lake's readings run above the Minnesota state average. It ranks #4 of 14 lakes in Rice County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.
Watch Roberds Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.