Septic pumping in Clackamas County, Oregon costs $350-$700 (avg $500). A new septic system installation costs $7,350-$14,700. Approximately 16,856 homes in this county use septic systems.
Septic System Costs in Clackamas County
Service
Low
Average
High
Pumping / Cleaning
$350
$500
$700
Routine Inspection
$300
$400
$550
Real Estate Inspection
$500
$700
$1000
Minor Repair
$900
$1,300
$6,450
Conventional Installation
$7,350
$10,500
$14,700
Aerobic System Installation
$13,750
$19,650
$27,500
Drainfield Replacement
$7,350
$10,500
$14,700
Perc Test
$1,100
$1,550
$2,150
Cost estimates based on regional market data for Clackamas County, Oregon. Actual costs depend on system type, site conditions, and provider.
Groundwater & Water Table in Clackamas County
Monitoring Wells
3
Avg Depth to Water
109.7 ft
Median Depth
114.8 ft
Shallowest Recorded
61 ft
Water table depths in this county are generally favorable for conventional septic systems.
Some counties require time-of-transfer inspection. Authorization required for installers.
Contact the Clackamas County health department for current permit requirements, fees, and approved system types.
Septic System FAQ for Clackamas County
How much does septic pumping cost in Clackamas County?
Septic pumping in Clackamas County, Oregon typically costs between $350 and $700, with an average of $500. 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 Clackamas County?
A conventional septic system installation in Clackamas County typically costs $7,350-$14,700. An aerobic treatment unit (ATU) costs $13,750-$27,500. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Clackamas County?
Yes. Virtually all counties in Oregon 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 Clackamas County health department for current requirements and fees.
What soil types are in Clackamas 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 Clackamas 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 16,856 septic systems in Clackamas County, there are many local providers offering regular pumping services.
How long does a septic system last in Clackamas County?
A well-maintained septic system in Clackamas 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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