How Clean Is Lake Dubay?
Lake Dubay 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): 2.5 ft. Phosphorus: 64.9 µg/L. Trophic State Index: 64.
Cleanliness Snapshot
| Metric | Lake Dubay | Wisconsin avg |
|---|---|---|
| Overall Grade | D | B |
| Water Clarity (Secchi) | 2.5 ft | — |
| Phosphorus | 64.9 µg/L | <30 = clean |
| Trophic State Index | 64 | <50 = clean |
How does Lake Dubay compare?
Lake Dubay's grade of D falls below the Wisconsin state average of B. It ranks #4 of 4 lakes in Marathon County by water quality score. Multi-year monitoring data shows water quality is declining based on 7 years of records.
Watch Lake Dubay water quality
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