Forked Lake
Carlisle County, KentuckyView mapDirections
Nutrients and algae sit mid-range for this region.
↑ up from D at the last regrade
- Eutrophic
- #1 of 2 in the county
- Public access
- Limited data
Forked Lake in Carlisle County, Kentucky has a water quality grade of C (Fair). Phosphorus: 48.5 µg/L.
- Type
- Eutrophic
- Phosphorus
- 48.5 µg/L
- Public access
- Yes
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Forked Lake is a productive, nutrient-rich eutrophic lake in Carlisle County, Kentucky. Water quality is graded C based on 1 sampling years through 2021. Limited fish-species data available. Public access is available. Compared to the 1 other monitored lakes in Carlisle County, Forked Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, KY DOW, last sampled 2021-09-08. 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 C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
No clarity data. Phosphorus 48.5 µg/L. TSI 60. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 48.5 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Forked Lake
County Ranking
Ranked #1 of 2 lakes in Carlisle County
Nearby Lakes in Carlisle County
Frequently asked questions about Forked Lake
Where is Forked Lake?
- Forked Lake is a lake in Carlisle County, Kentucky. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Forked Lake?
- Forked Lake in Carlisle County, Kentucky has a water quality grade of C (Fair). Phosphorus: 48.5 µg/L.
Is Forked Lake safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore Forked Lake across LakeQuality
More Kentucky Lake Rankings
Other Grade C Lakes in Kentucky
Eutrophic Lakes in Kentucky
Where this data comes from
18 measurements from 3 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- KY WQX
21KY_WQX18 samples · 2021
Analytical methods
- Total Phosphorus After Block Digestion
- Turbidity by Nephelometry
Monitoring station identifiers (3)
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.