Utah Lake is a highly nutrient-loaded hypereutrophic lake in Utah County, Utah. Water quality is graded F based on 2 sampling years through 2025. Compared to the 25 other monitored lakes in Utah County, Utah Lake ranks #24 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DNR, last sampled 2025-06-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 0.7 ft of visibility. Chlorophyll-a: 145.2 µg/L. Trophic State Index: 81.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 145.2 µg/L | F |
| Trophic State Index (TSI) | 81 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Utah Lake
Location
County Ranking
Ranked #24 of 26 lakes in Utah County
Nearby Lakes in Utah County
Explore Utah Lake across LakeGrade
More Utah Lake Rankings
Other Grade F Lakes in Utah
Hypereutrophic Lakes in Utah
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-06-23
Monitoring stations: 1