Bouldin Reservoir
Elmore County, AlabamaView mapDirections
ADEM publishes the water-quality measurements for Bouldin Reservoir. Here is what has been measured.
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Bouldin Reservoir in Elmore County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 3.3 ft visibility.
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Bouldin Reservoir is a lake in Elmore County, Alabama. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2021-02-23. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Bouldin Reservoir is safe to swim in today is a call for the Alabama Department of Environmental Management and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Bouldin Reservoir
These are the measurements ADEM publishes for Bouldin Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.3 ft of visibility. TSI 60.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Bouldin Reservoir
Water Quality Trend: ↑ Improving
Based on 9 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.027 m/yr | 9 |
Nearby Lakes in Elmore County
Frequently asked questions about Bouldin Reservoir
Where is Bouldin Reservoir?
- Bouldin Reservoir is a lake in Elmore County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Bouldin Reservoir?
- Bouldin Reservoir in Elmore County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 3.3 ft visibility.
Is Bouldin Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
81 measurements from 1 monitoring station, 2012–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Alabama Water Watch
AWW_WQX81 samples · 2012–2021
Analytical methods
- AWW QAPP
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.