Nla Lake is a productive, nutrient-rich eutrophic lake in Osage County, Oklahoma. Water quality is graded C based on 2 sampling years through 2017. Compared to the 12 other monitored lakes in Osage County, Nla Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2017-06-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 26.4 µg/L. Chlorophyll-a: 13.5 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | D |
| Phosphorus | 26.4 µg/L | C |
| Chlorophyll-a (Algae) | 13.5 µg/L | C |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Nla Lake
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Fishing Nla Lake
Location
County Ranking
Ranked #2 of 13 lakes in Osage County
Nearby Lakes in Osage County
Explore Nla Lake across LakeGrade
More Oklahoma Lake Rankings
Other Grade C Lakes in Oklahoma
Eutrophic Lakes in Oklahoma
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: 2017-06-11
Monitoring stations: 1