Sand filter Septic System Cost in Rhode Island
Estimated 2026 installed range: $10,200 – $20,500
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Open the cost calculatorWhy Rhode Island prices differ
Statewide cost drivers here are freeze depth, bedrock and older housing stock. Locally, coastal and wetland setbacks drive design costs. That is why a sand filter system in Rhode Island can land well above or below the national range of $8,000–$16,000.
All system types in Rhode Island
| System | Low | High |
|---|---|---|
| Conventional | $4,500 | $10,200 |
| Chamber | $6,400 | $14,100 |
| Aerobic / ATU | $10,200 | $23,000 |
| Mound | $12,800 | $28,200 |
| Sand filter | $10,200 | $20,500 |
What sand filter systems are for
A sand filter treats effluent before it reaches the drain field, which helps on poor soil. It adds cost and requires scheduled maintenance.
Related pages
All septic costs in Rhode Island · Sand filter system overview