Nla Lake is a highly nutrient-loaded hypereutrophic lake in Meagher County, Montana. Water quality is graded C based on 3 sampling years through 2012.
Source: EPA Water Quality Portal sampling records, Montana DNR, last sampled 2012-07-26. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Good clarity, visible to about 13.3 ft. Phosphorus level: 28000 µg/L. Chlorophyll-a: 1.2 µg/L. Trophic State Index: 75.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.3 ft | B |
| Phosphorus | 28000 µg/L | F |
| Chlorophyll-a (Algae) | 1.2 µg/L | A |
| Trophic State Index (TSI) | 75 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #1 of 1 lakes in Meagher 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: 2012-07-26
Monitoring stations: 1