Seminoe Reservoir
Carbon County, WyomingView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Public access
- Limited data
Seminoe Reservoir in Carbon County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 40 µg/L.
- Phosphorus
- 40 µg/L
- Public access
- Yes
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Watch Seminoe Reservoir’s letter
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Why Seminoe Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Seminoe Reservoir, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Seminoe Reservoir is a lake in Carbon County, Wyoming. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2012-07-16. Grade methodology: LakeQuality methodology.
What Seminoe Reservoir is good for
From access and monitoring records, not editorial picks.
- Camping1 public campground nearby
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Seminoe Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 40 µg/L. TSI 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 40 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Recreation & Access
Public campgrounds near Seminoe Reservoir
- Dugway Campground1.4 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Fishing Seminoe Reservoir
Graded lakes near Seminoe Reservoir
Seminoe Reservoir has no grade, but these lakes within a short drive do.
Nearby Lakes in Carbon County
Frequently asked questions about Seminoe Reservoir
Where is Seminoe Reservoir?
- Seminoe Reservoir is a lake in Carbon County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Seminoe Reservoir?
- Seminoe Reservoir in Carbon County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 40 µg/L.
Is Seminoe Reservoir safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Seminoe Reservoir?
- Seminoe Reservoir has 1 public campground from USGS The National Map within 5 km, including Dugway Campground. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Seminoe Reservoir across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 2012. 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_WATERSHED1 sample · 2012
Analytical methods
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles