Flaming Gorge Reservoir
Sweetwater County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Flaming Gorge Reservoir. Here is what has been measured.
- Limited data
Flaming Gorge Reservoir in Sweetwater County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 11.8 ft visibility.
Flaming Gorge Reservoir is a lake in Sweetwater County, Wyoming.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2019-08-13. Methodology: how these readings are compared.
What Flaming Gorge Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water11.8 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Flaming Gorge Reservoir is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Flaming Gorge Reservoir
These are the measurements Wyoming DEQ publishes for Flaming Gorge Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.8 ft. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Answers come straight from the public measurements and survey records on this page.
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Frequently asked questions about Flaming Gorge Reservoir
Where is Flaming Gorge Reservoir?
- Flaming Gorge Reservoir is a lake in Sweetwater County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Flaming Gorge Reservoir?
- Flaming Gorge Reservoir in Sweetwater County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 11.8 ft visibility.
Is Flaming Gorge Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
1 measurement from 1 monitoring station, 2019. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX1 sample · 2019
Analytical methods
- Field Measurements
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.