Seminoe Reservoir Lacustrine Pelagic
Carbon County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Seminoe Reservoir Lacustrine Pelagic. Here is what has been measured.
- Oligotrophic
- Public access
- Limited data
Seminoe Reservoir Lacustrine Pelagic in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 17.1 ft visibility. Phosphorus: 15 µg/L.
Seminoe Reservoir Lacustrine Pelagic is a cold, clear oligotrophic lake in Carbon County, Wyoming. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 9 other monitored lakes in Carbon County, Seminoe Reservoir Lacustrine Pelagic ranks #3 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 Lacustrine Pelagic is good for
From access and monitoring records, not editorial picks.
- Clear water17.1 ft of visibility
- Boat launch2 documented ramps
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 Lacustrine 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 Lacustrine Pelagic
These are the measurements Wyoming DEQ publishes for Seminoe Reservoir Lacustrine Pelagic, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 17.1 ft down. Phosphorus 15 µg/L. TSI 40.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 17.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 15µg/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. | 40 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Seminoe Reservoir Lacustrine Pelagic
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Seminoe Reservoir - NorthPublic
- Seminoe Reservoir - SouthPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Seminoe Reservoir Lacustrine Pelagic
Water Quality Trend: Improving
Based on 5 years of monitoring (2012–2016).
Phosphorus
Improving-1.5 µg/L/yr5 years
Nearby Lakes in Carbon County
Frequently asked questions about Seminoe Reservoir Lacustrine Pelagic
Where is Seminoe Reservoir Lacustrine Pelagic?
- Seminoe Reservoir Lacustrine 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 Lacustrine Pelagic?
- Seminoe Reservoir Lacustrine Pelagic in Carbon County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 17.1 ft visibility. Phosphorus: 15 µg/L.
Is Seminoe Reservoir Lacustrine Pelagic safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Seminoe Reservoir Lacustrine Pelagic?
- Seminoe Reservoir Lacustrine Pelagic has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Seminoe Reservoir - North, Seminoe Reservoir - South. Public access is listed as yes.
Can I fish at Seminoe Reservoir Lacustrine Pelagic?
- Seminoe Reservoir Lacustrine Pelagic has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wyoming's fish and wildlife agency, so check its current regulations before you go.
Explore Seminoe Reservoir Lacustrine Pelagic across LakeQuality
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Where this data comes from
15 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_WATERSHED15 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.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory