How Clean Is Lake Redstone?
Lake Redstone is nutrient-rich, with elevated phosphorus and algae. It received a water quality grade of D (Nutrient-rich) based on EPA monitoring data. Water clarity (Secchi depth): 2 ft. Phosphorus: 89 µg/L. Trophic State Index: 68.
Cleanliness Snapshot
| Metric | Lake Redstone | Wisconsin avg |
|---|---|---|
| Overall Grade | D | B |
| Water Clarity (Secchi) | 2 ft | — |
| Phosphorus | 89 µg/L | <30 = clean |
| Trophic State Index | 68 | <50 = clean |
How does Lake Redstone compare?
Lake Redstone's grade of D falls below the Wisconsin state average of B. It ranks #5 of 7 lakes in Sauk County by water quality score. Multi-year monitoring data shows water quality is declining based on 7 years of records.
Watch Lake Redstone water quality
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