Aerobic / ATU Septic System Cost in Georgia
Estimated 2026 installed range: $7,600 – $17,100
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Statewide cost drivers here are high water tables and clay soils. Locally, clay-heavy soils may require an engineered drain field. That is why a aerobic / atu system in Georgia can land well above or below the national range of $8,000–$18,000.
All system types in Georgia
| System | Low | High |
|---|---|---|
| Conventional | $3,300 | $7,600 |
| Chamber | $4,800 | $10,400 |
| Aerobic / ATU | $7,600 | $17,100 |
| Mound | $9,500 | $20,900 |
| Sand filter | $7,600 | $15,200 |
What aerobic / atu systems are for
Aerobic treatment units add oxygen to break down waste faster. They are used on tight or wet lots, require electricity, and need periodic maintenance.