Lake Carter P Johnson is a mesotrophic lake in Sioux County, Nebraska. Water quality is graded B based on 1 sampling years through 2017.
Source: EPA Water Quality Portal sampling records, Nebraska DNR, last sampled 2017-09-26. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.3 ft. Chlorophyll-a: 3.3 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.3 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 3.3 µg/L | B |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
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Location
County Ranking
Ranked #1 of 1 lakes in Sioux County
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Other Grade B Lakes in Nebraska
Mesotrophic Lakes in Nebraska
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: 2017-09-26
Monitoring stations: 1