Turner Lake
Ballard County, KentuckyView mapDirections
Clarity, phosphorus, and algae sit in the clean band for this region.
↑ up from C at the last regrade
- Eutrophic
- Impaired · Nutrients (phosphorus, nitrogen)
- #1 of 2 in the county
- Public access
- Limited data
Turner Lake in Ballard County, Kentucky has a water quality grade of B (Good). Phosphorus: 37 µg/L.
- Type
- Eutrophic
- Phosphorus
- 37 µg/L
- Public access
- Yes
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Watch Turner Lake’s letter
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Turner Lake is a productive, nutrient-rich eutrophic lake in Ballard County, Kentucky. Water quality is graded B based on 1 sampling years through 2021. Limited fish-species data available. Public access is available. Compared to the 1 other monitored lakes in Ballard County, Turner Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, KY DOW, last sampled 2021-09-07. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The B is nutrients and algae, not a swimming clearance. Turner Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water Quality Grade: B (Good)
No clarity data. Phosphorus 37 µg/L. TSI 56. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 37 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Turner Lake
EPA Impairment Status
Turner Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit KY-1935 · Official waterbody report
County Ranking
Ranked #1 of 2 lakes in Ballard County
Nearby Lakes in Ballard County
Frequently asked questions about Turner Lake
Where is Turner Lake?
- Turner Lake is a lake in Ballard County, Kentucky. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Turner Lake?
- Turner Lake in Ballard County, Kentucky has a water quality grade of B (Good). Phosphorus: 37 µg/L.
Is Turner Lake safe to swim in?
- The B is nutrients and algae, not a swimming clearance. Turner Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Explore Turner Lake across LakeQuality
More Kentucky Lake Rankings
Other Grade B Lakes in Kentucky
Eutrophic Lakes in Kentucky
Where this data comes from
14 measurements from 2 monitoring stations, 2015–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- KY WQX
21KY_WQX14 samples · 2015–2021
Analytical methods
- Phosphorus by Colorimetry
- Total Phosphorus After Block Digestion
- Turbidity by Nephelometry
Monitoring station identifiers (2)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database