State Requirements
New Jersey Septic Tank Requirements
Complete guide to septic system requirements in New Jersey (NJ). Use our calculator for personalized recommendations.
Regulatory Agency
New Jersey Department of Environmental Protection
Permit Required
YesProfessional Install
RequiredMinimum Tank Size
1,000 gal
Tank Size Requirements
| Bedrooms | Min Tank Size | With Garbage Disposal |
|---|---|---|
| 3 | 1,250 gal | 1,875 gal |
| 4 | 1,500 gal | 2,250 gal |
| 1-2 | 1,000 gal | 1,500 gal |
| 5-6 | 2,000 gal | 3,000 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
250
sq ft minimum
Clay
350
sq ft minimum
New Jersey Specific Notes
- Pinelands region has special requirements
- High population density affects regulations
- Coastal areas have stricter rules
Regulatory Contact
New Jersey Department of Environmental Protection
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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