Twin Butte Reservoir
Albany County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Twin Butte Reservoir. Here is what has been measured.
- Public access
- Limited data
Twin Butte Reservoir in Albany County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 65 µg/L.
Twin Butte Reservoir is a lake in Albany County, Wyoming. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2014-09-17. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Twin Butte 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 Twin Butte Reservoir
These are the measurements Wyoming DEQ publishes for Twin Butte Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 65 µg/L. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 65µg/L | Measured, not scored 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. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Twin Butte Reservoir
Water quality readings over time
3 seasons of samples on record (2013–2017). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Improving-7.25 µg/L/yr3 years
Nearby Lakes in Albany County
Frequently asked questions about Twin Butte Reservoir
Where is Twin Butte Reservoir?
- Twin Butte Reservoir is a lake in Albany County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Twin Butte Reservoir?
- Twin Butte Reservoir in Albany County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 65 µg/L.
Is Twin Butte Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Twin Butte Reservoir?
- Public access to Twin Butte Reservoir is listed as yes on the lake record. 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.
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Where this data comes from
6 measurements from 1 monitoring station, 2013–2014. 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_WATERSHED6 samples · 2013–2014
Analytical methods
- 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.