Cofc Lake
Choctaw County, AlabamaView mapDirections
ADEM publishes the water-quality measurements for Cofc Lake. Here is what has been measured.
- Eutrophic
- Public access
Cofc Lake in Choctaw County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 1.9 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 10.7 µg/L.
Cofc Lake is a productive, nutrient-rich eutrophic lake in Choctaw County, Alabama. Limited fish-species data available. Public access is available. Compared to the 1 other monitored lakes in Choctaw County, Cofc Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2025-10-29. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Cofc Lake 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 Cofc Lake
These are the measurements ADEM publishes for Cofc Lake, 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 1.9 ft of visibility. Phosphorus 40 µg/L. Chlorophyll-a 10.7 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 40µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 10.7µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Cofc Lake
Nearby Lakes in Choctaw County
Frequently asked questions about Cofc Lake
Where is Cofc Lake?
- Cofc Lake is a lake in Choctaw County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Cofc Lake?
- Cofc Lake in Choctaw County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 1.9 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 10.7 µg/L.
Is Cofc Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Cofc Lake?
- Public access to Cofc Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Alabama's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
150 measurements from 2 monitoring stations, 2014–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC150 samples · 2014–2025
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2120 B ~ Color in Water by Visual Comparison
Monitoring station identifiers (2)
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.