What is the water quality grade for Lower Sunshine Reservoir?

Lower Sunshine Reservoir in Park County, Wyoming received a water quality grade of A (Excellent). Water clarity: 10.6 ft visibility. Phosphorus: 10 µg/L.

Is Lower Sunshine Reservoir safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Lower Sunshine Reservoir has an overall water quality grade of A. Always check local health department advisories before swimming.

Park County, Wyoming

Lower Sunshine Reservoir

Grade AExcellent · 10.6 ft clarity

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Mesotrophic

Lower Sunshine Reservoir is a mesotrophic lake in Park County, Wyoming. Water quality is graded A based on 2 sampling years through 2021. Compared to the 20 other monitored lakes in Park County, Lower Sunshine Reservoir ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, Wyoming DNR, last sampled 2021-07-20. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 10.6 ft. Phosphorus level: 10 µg/L. Trophic State Index: 40.

Metric	Value	Grade
Water Clarity (Secchi Depth)	10.6 ft	B
Phosphorus	10 µg/L	A
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	40	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Lower Sunshine Reservoir

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