Septic Systems in Clark County, AR

Modeled costs, available official data & local verification guidance

Pop. 21,446 ~33.6% on septic ~2,882 septic homes

Our modeled range for septic pumping in Clark County, Arkansas is $200-$400. A modeled conventional installation range is $4,550-$9,100. The site model estimates approximately 2,882 homes may use septic systems; this is not a county count.

Septic System Costs in Clark County

ServiceLowAverageHigh
Pumping / Cleaning$200$300$400
Routine Inspection$200$250$350
Real Estate Inspection$300$450$650
Minor Repair$550$800$4,000
Conventional Installation$4,550$6,500$9,100
Aerobic System Installation$8,500$12,150$17,000
Drainfield Replacement$4,550$6,500$9,100
Perc Test$650$950$1,350

Modeled estimates derived from national reference ranges and a regional multiplier, not observed local quotes. Actual costs depend on system type, site conditions, permits, and provider.

Groundwater & Water Table in Clark County

Monitoring Wells
22
Avg Depth to Water
48.6 ft
Median Depth
49.2 ft
Shallowest Recorded
-0.6 ft Shallow Risk

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

Source: USGS National Water Information System. Based on 74 measurements from monitoring wells.

Septic System FAQ for Clark County

How much does septic pumping cost in Clark County?
Our modeled pumping range for Clark County, Arkansas is $200-$400, with a modeled midpoint of $300. This is not an observed local quote. Actual cost varies by tank size, access, travel distance and tank condition.
How much does a new septic system cost in Clark County?
Our modeled conventional-installation range for Clark County is $4,550-$9,100; the modeled aerobic-system range is $8,500-$17,000. These are planning indicators, not observed local quotes. A site evaluation and provider estimate are needed.
Do I need a permit for a septic system in Clark County?
Permit requirements depend on the work, property and responsible authority. Review the verified official-source summary on this page, then contact the authority directly for the current application, exemptions, fees, site-evaluation requirements and inspection steps before work begins.
What soil types are in Clark 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 Clark 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. Some counties in Arkansas have mandatory pumping schedules — check with your local health department.
How long does a septic system last in Clark County?
A well-maintained septic system in Clark 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

Population21,446
Est. Septic Homes2,882
Avg Pumping Cost$300

Common Septic Services

Pumping: $200-$400
Inspection: $200-$350
Repair: $550-$4,000
Installation: $4,550-$9,100

Data last updated: 2026-08-26