South Crow Reservoir
Laramie County, WyomingView mapDirections
Nutrients and algae sit mid-range for this region.
- Eutrophic
- #6 of 8 in the county
- Limited data
South Crow Reservoir in Laramie County, Wyoming has a water quality grade of C (Fair). Phosphorus: 30 µg/L.
- Type
- Eutrophic
- Phosphorus
- 30 µg/L
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Watch South Crow Reservoir’s letter
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South Crow Reservoir is a productive, nutrient-rich eutrophic lake in Laramie County, Wyoming. Water quality is graded C based on 1 sampling years through 2017. Compared to the 7 other monitored lakes in Laramie County, South Crow Reservoir ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2017-09-21. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
No clarity data. Phosphorus 30 µg/L. TSI 53. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 30 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing South Crow Reservoir
County Ranking
Ranked #6 of 8 lakes in Laramie County
Nearby Lakes in Laramie County
Frequently asked questions about South Crow Reservoir
Where is South Crow Reservoir?
- South Crow Reservoir is a lake in Laramie County, Wyoming. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for South Crow Reservoir?
- South Crow Reservoir in Laramie County, Wyoming has a water quality grade of C (Fair). Phosphorus: 30 µg/L.
Is South Crow Reservoir safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore South Crow Reservoir across LakeQuality
More Wyoming Lake Rankings
Other Grade C Lakes in Wyoming
Eutrophic Lakes in Wyoming
Where this data comes from
3 measurements from 1 monitoring station, 2017. 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_WATERSHED3 samples · 2017
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.