Bay-Mill-Bayou Lake
Bay County, FloridaLimited DataEutrophic
Bay-Mill-Bayou Lake is a productive, nutrient-rich eutrophic lake in Bay County, Florida. Water quality is graded D based on 1 sampling years through 2025. Compared to the 37 other monitored lakes in Bay County, Bay-Mill-Bayou Lake ranks #34 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-08-30. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 4.5 ft. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.5 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #34 of 38 lakes in Bay County
Cleaner Lakes Within 30 Miles
Bay-Mill-Bayou Lake holds Grade D. 2 nearby lakes hold higher grades.
Nearby Lakes in Bay County
More Florida Lake Rankings
Other Grade D Lakes in Florida
Eutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-08-30
Monitoring stations: 1
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