Nla Lake is a highly nutrient-loaded hypereutrophic lake in Petersburg city County, Virginia. Water quality is graded F based on 2 sampling years through 2012.
Source: EPA Water Quality Portal sampling records, Virginia DNR, last sampled 2012-07-10. 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 2 ft of visibility. Phosphorus level: 114000 µg/L. Chlorophyll-a: 50.1 µg/L. Trophic State Index: 103.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | 114000 µg/L | F |
| Chlorophyll-a (Algae) | 50.1 µg/L | F |
| Trophic State Index (TSI) | 103 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Nla Lake
Location
County Ranking
Ranked #1 of 1 lakes in Petersburg city County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade F. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Petersburg city County
Explore Nla Lake across LakeGrade
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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: 2012-07-10
Monitoring stations: 1