Nla Lake is a highly nutrient-loaded hypereutrophic lake in Hughes County, Oklahoma. Water quality is graded F based on 2 sampling years through 2012. Compared to the 1 other monitored lakes in Hughes County, Nla Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2012-07-16. 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 1.2 ft of visibility. Phosphorus level: 327000 µg/L. Chlorophyll-a: 95.2 µg/L. Trophic State Index: 112.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | F |
| Phosphorus | 327000 µg/L | F |
| Chlorophyll-a (Algae) | 95.2 µg/L | F |
| Trophic State Index (TSI) | 112 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #2 of 2 lakes in Hughes County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade F. 4 nearby lakes hold higher grades.
- DNla LakeHughes County · 8.2 mi · Higher grade (F → D)
- DNla LakeOkfuskee County · 24.1 mi · Higher grade (F → D)
- DNla LakeSeminole County · 24.3 mi · Higher grade (F → D)
- DNla LakeOkmulgee County · 29.5 mi · Higher grade (F → D)
Nearby Lakes in Hughes 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: 2012-07-16
Monitoring stations: 1