What is the water quality grade for Matt Warner Reservoir?

Matt Warner Reservoir in Uintah County, Utah received a water quality grade of C (Fair). Water clarity: 6.6 ft visibility. Chlorophyll-a (algae): 7.8 µg/L.

Is Matt Warner Reservoir safe to swim in?

Generally safe for swimming, moderate water quality. Matt Warner Reservoir has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 7.8 µg/L. Always check local health department advisories before swimming.

Uintah County, Utah

Matt Warner Reservoir

Grade CFair · 6.6 ft clarity

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Eutrophic

Matt Warner Reservoir is a productive, nutrient-rich eutrophic lake in Uintah County, Utah. Water quality is graded C based on 2 sampling years through 2024. Compared to the 31 other monitored lakes in Uintah County, Matt Warner Reservoir ranks #22 for water quality.

Source: EPA Water Quality Portal sampling records, Utah DNR, last sampled 2024-09-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 6.6 ft. Chlorophyll-a: 7.8 µg/L. Trophic State Index: 50.

Metric	Value	Grade
Water Clarity (Secchi Depth)	6.6 ft	D
Phosphorus	No data
Chlorophyll-a (Algae)	7.8 µg/L	B
Trophic State Index (TSI)	50	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Matt Warner Reservoir

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