Purs Lake is a productive, nutrient-rich eutrophic lake in Jefferson County, Alabama. Water quality is graded C based on 2 sampling years through 2023. Compared to the 1 other monitored lakes in Jefferson County, Purs Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Alabama DNR, last sampled 2023-10-18. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 3.6 ft. Phosphorus level: 26 µg/L. Chlorophyll-a: 13.9 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 ft | D |
| Phosphorus | 26 µg/L | C |
| Chlorophyll-a (Algae) | 13.9 µg/L | C |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Purs Lake
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Fishing Purs Lake
Location
County Ranking
Ranked #1 of 2 lakes in Jefferson County
Cleaner Lakes Within 30 Miles
Purs Lake holds Grade C. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Jefferson County
Explore Purs Lake across LakeGrade
More Alabama Lake Rankings
Other Grade C Lakes in Alabama
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: 2023-10-18
Monitoring stations: 2