Arkansas Lake is a highly nutrient-loaded hypereutrophic lake in El Paso County, Colorado. Water quality is graded F based on 1 sampling years through 2022. Compared to the 2 other monitored lakes in El Paso County, Arkansas Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Colorado DNR, last sampled 2022-11-09. 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
No clarity data. Phosphorus level: 356.7 µg/L. Trophic State Index: 89.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 356.7 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 89 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Arkansas Lake
Location
County Ranking
Ranked #3 of 3 lakes in El Paso County
Nearby Lakes in El Paso County
Explore Arkansas Lake across LakeGrade
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: 2022-11-09
Monitoring stations: 2