Pearl Lake is a cold, clear oligotrophic lake in Routt County, Colorado. Water quality is graded B based on 1 sampling years through 2020. Compared to the 4 other monitored lakes in Routt County, Pearl Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Colorado DNR, last sampled 2020-09-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 14.1 ft. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.1 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fishing Pearl Lake
Location
County Ranking
Ranked #2 of 5 lakes in Routt County
Nearby Lakes in Routt County
Explore Pearl Lake across LakeGrade
More Colorado Lake Rankings
Other Grade B Lakes in Colorado
Oligotrophic 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: 2020-09-22
Monitoring stations: 1