Mare Lake is a mesotrophic lake in Elmore County, Alabama. Water quality is graded A based on 2 sampling years through 2026. Compared to the 4 other monitored lakes in Elmore County, Mare Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Alabama DNR, last sampled 2026-04-28. 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 10.6 ft. Phosphorus level: 8 µg/L. Chlorophyll-a: 4.6 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.6 ft | B |
| Phosphorus | 8 µg/L | A |
| Chlorophyll-a (Algae) | 4.6 µg/L | B |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Mare Lake
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Fishing Mare Lake
Location
County Ranking
Ranked #2 of 5 lakes in Elmore County
Nearby Lakes in Elmore County
Explore Mare Lake across LakeGrade
More Alabama Lake Rankings
Other Grade A 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: 2026-04-28
Monitoring stations: 3