Septic Systems in Kent County, RI

Regulations, costs, soil data & local providers

Pop. 170,363 ~7.5% on septic ~5,111 septic homes

Septic pumping in Kent County, Rhode Island costs $400-$750 (avg $550). A new septic system installation costs $7,850-$15,700. Approximately 5,111 homes in this county use septic systems.

Septic System Costs in Kent County

ServiceLowAverageHigh
Pumping / Cleaning$400$550$750
Routine Inspection$300$400$550
Real Estate Inspection$500$750$1050
Minor Repair$1,000$1,400$6,850
Conventional Installation$7,850$11,200$15,700
Aerobic System Installation$14,700$21,000$29,400
Drainfield Replacement$7,850$11,200$15,700
Perc Test$1,200$1,700$2,400

Cost estimates based on regional market data for Kent County, Rhode Island. Actual costs depend on system type, site conditions, and provider.

Groundwater & Water Table in Kent County

Monitoring Wells
8
Avg Depth to Water
10.3 ft
Median Depth
8.3 ft
Shallowest Recorded
2.4 ft Shallow Risk

Water table depths in this county are generally favorable for conventional septic systems.

Source: USGS National Water Information System. Based on 778 measurements from monitoring wells.

Septic Regulations & Permits in Kent County

State Regulatory Body
Rhode Island Department of Health/Environment
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
No

Contact county health department for specific requirements.

Contact the Kent County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Kent County

How much does septic pumping cost in Kent County?
Septic pumping in Kent County, Rhode Island typically costs between $400 and $750, with an average of $550. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Kent County?
A conventional septic system installation in Kent County typically costs $7,850-$15,700. An aerobic treatment unit (ATU) costs $14,700-$29,400. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Kent County?
Yes. Virtually all counties in Rhode Island require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Kent County health department for current requirements and fees.
What soil types are in Kent County and how do they affect septic systems?
Contact the county health department for soil evaluation requirements.
How often should I pump my septic tank in Kent County?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. With approximately 5,111 septic systems in Kent County, there are many local providers offering regular pumping services.
How long does a septic system last in Kent County?
A well-maintained septic system in Kent County typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions. Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population170,363
Est. Septic Homes5,111
Avg Pumping Cost$550

Common Septic Services

Pumping: $400-$750
Inspection: $300-$550
Repair: $1,000-$6,850
Installation: $7,850-$15,700

Data last updated: 2026-04-13