North Sterling Reservoir is a highly nutrient-loaded hypereutrophic lake in Logan County, Colorado. Water quality is graded F based on 1 sampling years through 2021. Compared to the 2 other monitored lakes in Logan County, North Sterling Reservoir ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Colorado DNR, last sampled 2021-09-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.1 ft of visibility. Trophic State Index: 75.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.1 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 75 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Location
County Ranking
Ranked #1 of 3 lakes in Logan County
Nearby Lakes in Logan County
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More Colorado Lake Rankings
Other Grade F Lakes in Colorado
Hypereutrophic Lakes in Colorado
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-09-21
Monitoring stations: 1