Nla Lake is a highly nutrient-loaded hypereutrophic lake in Okmulgee County, Oklahoma. Water quality is graded D based on 2 sampling years through 2012. Compared to the 1 other monitored lakes in Okmulgee County, Nla Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2012-06-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 0.6 ft of visibility. Phosphorus level: 150000 µg/L. Chlorophyll-a: 8.4 µg/L. Trophic State Index: 104.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.6 ft | F |
| Phosphorus | 150000 µg/L | F |
| Chlorophyll-a (Algae) | 8.4 µg/L | C |
| Trophic State Index (TSI) | 104 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #2 of 2 lakes in Okmulgee County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Okmulgee County
Explore Nla Lake across LakeGrade
More Oklahoma Lake Rankings
Other Grade D 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: 2012-06-11
Monitoring stations: 1