Smiw Lake is a cold, clear oligotrophic lake in Winston County, Alabama. Water quality is graded A based on 2 sampling years through 2024. Compared to the 1 other monitored lakes in Winston County, Smiw Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Alabama DNR, last sampled 2024-10-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 11.5 ft. Phosphorus level: 7 µg/L. Chlorophyll-a: 2.7 µg/L. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | B |
| Phosphorus | 7 µg/L | A |
| Chlorophyll-a (Algae) | 2.7 µg/L | A |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Smiw Lake
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Fishing Smiw Lake
Location
County Ranking
Ranked #1 of 2 lakes in Winston County
Nearby Lakes in Winston County
Explore Smiw Lake across LakeGrade
More Alabama Lake Rankings
Other Grade A Lakes in Alabama
Oligotrophic 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: 2024-10-22
Monitoring stations: 5