Dmad Reservoir is a productive, nutrient-rich eutrophic lake in Millard County, Utah. Water quality is graded C based on 2 sampling years through 2020. Compared to the 2 other monitored lakes in Millard County, Dmad Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DNR, last sampled 2020-08-05. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 0.7 ft of visibility. Chlorophyll-a: 4.1 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.1 µg/L | A |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Dmad Reservoir
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Fishing Dmad Reservoir
Location
County Ranking
Ranked #1 of 3 lakes in Millard County
Cleaner Lakes Within 30 Miles
Dmad Reservoir holds Grade C. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Millard County
Explore Dmad Reservoir across LakeGrade
More Utah Lake Rankings
Other Grade C Lakes in Utah
Eutrophic 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: 2020-08-05
Monitoring stations: 2