Pilot Butte Reservoir Rtpd
Fremont County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Pilot Butte Reservoir Rtpd. Here is what has been measured.
- Limited data
Pilot Butte Reservoir Rtpd in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 50 µg/L.
Pilot Butte Reservoir Rtpd is a lake in Fremont County, Wyoming. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2014-09-08. 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 Pilot Butte Reservoir Rtpd 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 Pilot Butte Reservoir Rtpd
These are the measurements Wyoming DEQ publishes for Pilot Butte Reservoir Rtpd, 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 50 µg/L. TSI 61.
| 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 | 50µg/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. | 61 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Pilot Butte Reservoir Rtpd
Water quality readings over time
2 seasons of samples on record (2013–2014). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Worsening+5 µg/L/yr2 years
Nearby Lakes in Fremont County
Frequently asked questions about Pilot Butte Reservoir Rtpd
Where is Pilot Butte Reservoir Rtpd?
- Pilot Butte Reservoir Rtpd is a lake in Fremont County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Pilot Butte Reservoir Rtpd?
- Pilot Butte Reservoir Rtpd in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Phosphorus: 50 µg/L.
Is Pilot Butte Reservoir Rtpd safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Pilot Butte Reservoir Rtpd across LakeQuality
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Where this data comes from
5 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_WATERSHED5 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.