Lower Bowns Reservoir is a mesotrophic lake in Garfield County, Utah. Water quality is graded B based on 2 sampling years through 2025. Compared to the 12 other monitored lakes in Garfield County, Lower Bowns Reservoir ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DNR, last sampled 2025-09-10. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.2 ft. Chlorophyll-a: 9 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.2 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 9 µg/L | B |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lower Bowns Reservoir
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Top-rated places to stay near Lower Bowns Reservoir
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Fishing Lower Bowns Reservoir
Location
County Ranking
Ranked #7 of 13 lakes in Garfield County
Nearby Lakes in Garfield County
Explore Lower Bowns Reservoir across LakeGrade
More Utah Lake Rankings
Other Grade B Lakes in Utah
Mesotrophic 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: 2025-09-10
Monitoring stations: 1