Nla Lake is a highly nutrient-loaded hypereutrophic lake in Navajo County, Arizona. Water quality is graded C based on 2 sampling years through 2012. Compared to the 4 other monitored lakes in Navajo County, Nla Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Arizona DNR, last sampled 2012-08-21. 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 ft of visibility. Phosphorus level: 79000 µg/L. Chlorophyll-a: 6.2 µg/L. Trophic State Index: 98.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 ft | F |
| Phosphorus | 79000 µg/L | F |
| Chlorophyll-a (Algae) | 6.2 µg/L | B |
| Trophic State Index (TSI) | 98 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #3 of 5 lakes in Navajo County
Nearby Lakes in Navajo County
Explore Nla Lake across LakeGrade
More Arizona Lake Rankings
Other Grade C Lakes in Arizona
Hypereutrophic Lakes in Arizona
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: 2012-08-21
Monitoring stations: 1