Nla Lake is a highly nutrient-loaded hypereutrophic lake in Rockingham County, Virginia. Water quality is graded D based on 2 sampling years through 2012. Compared to the 4 other monitored lakes in Rockingham County, Nla Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Virginia DNR, last sampled 2012-07-26. 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 2.3 ft of visibility. Phosphorus level: 40000 µg/L. Chlorophyll-a: 14.7 µg/L. Trophic State Index: 93.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | F |
| Phosphorus | 40000 µg/L | F |
| Chlorophyll-a (Algae) | 14.7 µg/L | C |
| Trophic State Index (TSI) | 93 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #5 of 5 lakes in Rockingham County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade D. 3 nearby lakes hold higher grades.
- ASilver LakeRockingham County · 9.4 mi · Two grade letters higher (D → A)
- ANla LakeAugusta County · 21.1 mi · Two grade letters higher (D → A)
- BLake LauraShenandoah County · 19.5 mi · Two grade letters higher (D → B)
Nearby Lakes in Rockingham County
Explore Nla Lake across LakeGrade
More Virginia Lake Rankings
Other Grade D Lakes in Virginia
Hypereutrophic Lakes in Virginia
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: 2012-07-26
Monitoring stations: 1