State Requirements
Kentucky Septic Tank Requirements
Complete guide to septic system requirements in Kentucky (KY). Use our calculator for personalized recommendations.
Regulatory Agency
Kentucky Division of Water
Permit Required
YesProfessional Install
RequiredMinimum Tank Size
750 gal
Tank Size Requirements
| Bedrooms | Min Tank Size | With Garbage Disposal |
|---|---|---|
| 3 | 900 gal | 1,350 gal |
| 4 | 1,000 gal | 1,500 gal |
| 1-2 | 750 gal | 1,125 gal |
| 5-6 | 1,250 gal | 1,875 gal |
Drainfield Sizing by Soil Type
Minimum square feet of absorption area based on soil percolation rate:
Gravel/Sandy
100
sq ft minimum
Sandy
150
sq ft minimum
Loam
200
sq ft minimum
Clay
300
sq ft minimum
Kentucky Specific Notes
- Karst terrain affects system design in many areas
- Limestone bedrock considerations
Regulatory Contact
Kentucky Division of Water
Important Disclaimer
This information is provided for reference only. Local county or city requirements may be stricter than state minimums. Always verify requirements with your local health department before installation.
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