Nla Lake is a highly nutrient-loaded hypereutrophic lake in Grant County, Washington. Water quality is graded C based on 3 sampling years through 2012. Compared to the 12 other monitored lakes in Grant County, Nla Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, Washington DNR, last sampled 2012-07-30. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Good clarity, visible to about 12.1 ft. Phosphorus level: 69000 µg/L. Chlorophyll-a: 2.8 µg/L. Trophic State Index: 82.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.1 ft | B |
| Phosphorus | 69000 µg/L | F |
| Chlorophyll-a (Algae) | 2.8 µg/L | A |
| Trophic State Index (TSI) | 82 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #9 of 13 lakes in Grant County
Nearby Lakes in Grant County
Explore Nla Lake across LakeGrade
More Washington Lake Rankings
Other Grade C Lakes in Washington
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: 2012-07-30
Monitoring stations: 1