Nla Lake is a highly nutrient-loaded hypereutrophic lake in Washita County, Oklahoma. Water quality is graded F based on 2 sampling years through 2017. Compared to the 1 other monitored lakes in Washita County, Nla Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2017-06-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 0.7 ft of visibility. Phosphorus level: 250.3 µg/L. Chlorophyll-a: 117.6 µg/L. Trophic State Index: 81.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | 250.3 µg/L | F |
| Chlorophyll-a (Algae) | 117.6 µg/L | F |
| Trophic State Index (TSI) | 81 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #2 of 2 lakes in Washita County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade F. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Washita County
Explore Nla Lake across LakeGrade
More Oklahoma Lake Rankings
Other Grade F 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: 2017-06-13
Monitoring stations: 1