Carter Reservoir is a mesotrophic lake in Larimer County, Colorado. Water quality is graded C based on 1 sampling years through 2022. Compared to the 6 other monitored lakes in Larimer County, Carter Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Colorado DNR, last sampled 2022-10-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 6.9 ft. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.9 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Carter Reservoir
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Location
County Ranking
Ranked #2 of 7 lakes in Larimer County
Nearby Lakes in Larimer County
Explore Carter Reservoir across LakeGrade
More Colorado Lake Rankings
Other Grade C Lakes in Colorado
Mesotrophic 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: 2022-10-27
Monitoring stations: 1