St. Croix 0.3 Mi. Downstream of I Lake vs St. Croix Lake
Water quality, depth, fish species, and recreation comparison.
St. Croix 0.3 Mi. Downstream of I Lake has a higher water quality grade (C, Fair) than St. Croix Lake (D, Poor).
C
St. Croix 0.3 Mi. Downstream of I Lake
Washington County, Minnesota
Murky, only visible to about 6.1 ft.
D
St. Croix Lake
St. Croix County, Wisconsin
Murky, only visible to about 5.1 ft.
Side-by-Side Metrics
| Metric | St. Croix 0.3 Mi. Downstream of I Lake | St. Croix Lake |
|---|---|---|
| Overall Grade | C (Fair) | D (Poor) |
| Water Clarity | 6.1 ft | 5.1 ft |
| Phosphorus | 34 µg/L | No data |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 78 ft | 60 ft |
| Surface Area | 8.4K acres | 7.7K acres |
| Public Access | No | Yes |
| Fish Species | 36 | 7 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
St. Croix 0.3 Mi. Downstream of I Lake wins on overall water quality with a Grade C versus St. Croix Lake's Grade D. Water clarity: 6.1 ft vs 5.1 ft. For fishing diversity, St. Croix 0.3 Mi. Downstream of I Lake also leads with 36 species.