Seminoe Reservoir Transitional Pelagic
Carbon County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Seminoe Reservoir Transitional Pelagic. Here is what has been measured.
- Mesotrophic
- Limited data
Seminoe Reservoir Transitional Pelagic in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 11.4 ft visibility. Phosphorus: 20 µg/L.
Seminoe Reservoir Transitional Pelagic is a mesotrophic lake in Carbon County, Wyoming. Overall water quality is declining over recent sampling years. Compared to the 9 other monitored lakes in Carbon County, Seminoe Reservoir Transitional Pelagic ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2016-09-12. Methodology: how these readings are compared.
What Seminoe Reservoir Transitional Pelagic is good for
From access and monitoring records, not editorial picks.
- Clear water11.4 ft of visibility
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Seminoe Reservoir Transitional Pelagic 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 Seminoe Reservoir Transitional Pelagic
These are the measurements Wyoming DEQ publishes for Seminoe Reservoir Transitional Pelagic, 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 11.4 ft. Phosphorus 20 µg/L. TSI 45.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20µg/L | Good GoodFairPoor |
| 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. | 45 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Seminoe Reservoir Transitional Pelagic
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Fishing Seminoe Reservoir Transitional Pelagic
Water Quality Trend: Worsening
Based on 5 years of monitoring (2012–2016).
Phosphorus
Worsening+1.5 µg/L/yr5 years
Nearby Lakes in Carbon County
Frequently asked questions about Seminoe Reservoir Transitional Pelagic
Where is Seminoe Reservoir Transitional Pelagic?
- Seminoe Reservoir Transitional Pelagic is a lake in Carbon County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Seminoe Reservoir Transitional Pelagic?
- Seminoe Reservoir Transitional Pelagic in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 11.4 ft visibility. Phosphorus: 20 µg/L.
Is Seminoe Reservoir Transitional Pelagic safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Seminoe Reservoir Transitional Pelagic across LakeQuality
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Other Lakes in Wyoming
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Where this data comes from
17 measurements from 1 monitoring station, 2012–2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED17 samples · 2012–2016
Analytical methods
- Secchi
- Total Phosphorus After Block Digestion
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.