Nla Lake is a highly nutrient-loaded hypereutrophic lake in Washita County, Oklahoma. Water quality is graded D based on 2 sampling years through 2017. Compared to the 1 other monitored lakes in Washita County, Nla Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2017-06-20. 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 2 ft of visibility. Phosphorus level: 571.2 µg/L. Chlorophyll-a: 25.1 µg/L. Trophic State Index: 75.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | 571.2 µg/L | F |
| Chlorophyll-a (Algae) | 25.1 µg/L | D |
| 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 2 lakes in Washita County
Nearby Lakes in Washita 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: 2017-06-20
Monitoring stations: 1