Nla Lake is a highly nutrient-loaded hypereutrophic 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 #4 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2017-07-19. 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 1.8 ft of visibility. Phosphorus level: 15017.3 µg/L. Chlorophyll-a: 7 µg/L. Trophic State Index: 87.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | F |
| Phosphorus | 15017.3 µg/L | F |
| Chlorophyll-a (Algae) | 7 µg/L | B |
| Trophic State Index (TSI) | 87 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #4 of 13 lakes in Osage County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade C. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Osage County
Explore Nla Lake across LakeGrade
More Oklahoma Lake Rankings
Other Grade C Lakes in Oklahoma
Hypereutrophic 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: 2017-07-19
Monitoring stations: 1