Nla Lake is a productive, nutrient-rich eutrophic lake in Caribou County, Idaho. Water quality is graded C based on 3 sampling years through 2017.
Source: EPA Water Quality Portal sampling records, Idaho DNR, last sampled 2017-07-19. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Good clarity, visible to about 10.1 ft. Phosphorus level: 34.3 µg/L. Chlorophyll-a: 24.7 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.1 ft | B |
| Phosphorus | 34.3 µg/L | C |
| Chlorophyll-a (Algae) | 24.7 µg/L | D |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #1 of 1 lakes in Caribou County
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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: 2017-07-19
Monitoring stations: 1