Nla Lake is a productive, nutrient-rich eutrophic lake in Carbon County, Montana. Water quality is graded B based on 3 sampling years through 2012. Compared to the 7 other monitored lakes in Carbon County, Nla Lake ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, Montana DNR, last sampled 2012-09-18. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Crystal clear, you can see 18.5 ft down. Phosphorus level: 8000 µg/L. Chlorophyll-a: 1.4 µg/L. Trophic State Index: 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18.5 ft | A |
| Phosphorus | 8000 µg/L | F |
| Chlorophyll-a (Algae) | 1.4 µg/L | A |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #8 of 8 lakes in Carbon County
Nearby Lakes in Carbon County
Explore Nla Lake across LakeGrade
More Montana Lake Rankings
Other Grade B Lakes in Montana
Eutrophic Lakes in Montana
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: 2012-09-18
Monitoring stations: 1