Septic Systems in Gentry County, MO

Regulations, costs, soil data & local providers

Pop. 6,162 ~35% on septic ~863 septic homes Somewhat poorly drained soil

Septic pumping in Gentry County, Missouri costs $200-$400 (avg $300). A new septic system installation costs $4,550-$9,100. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 863 homes in this county use septic systems.

Septic System Costs in Gentry 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

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

Soil & Septic Suitability in Gentry County

Drainage Class
Somewhat poorly drained
Hydrologic Group
C/D
Unique Soil Types
49
Avg Bedrock Depth
2.7 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Gara 487 Well drained C
Shelby 448 Well drained C
Lamoni 395 Somewhat poorly drained D
Sharpsburg 379 Moderately well drained C
Grundy 370 Somewhat poorly drained C/D

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited1.6%
Very Limited98.4%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Septic Regulations & Permits in Gentry County

State Regulatory Body
Missouri 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 Gentry County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Gentry County

How much does septic pumping cost in Gentry County?
Septic pumping in Gentry County, Missouri typically costs between $200 and $400, with an average of $300. 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 Gentry County?
A conventional septic system installation in Gentry County typically costs $4,550-$9,100. An aerobic treatment unit (ATU) costs $8,500-$17,000. Given the predominantly somewhat poorly drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Gentry County?
Yes. Virtually all counties in Missouri 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 Gentry County health department for current requirements and fees.
What soil types are in Gentry County and how do they affect septic systems?
Gentry County has predominantly Gara, Shelby, Lamoni soils. The dominant drainage class is Somewhat poorly drained with hydrologic group C/D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 1.6% as "Somewhat Limited", and 98.4% as "Very Limited".
How often should I pump my septic tank in Gentry 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 Missouri have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Gentry County?
It depends on your specific site. USDA soil data shows that 98.4% of soils in Gentry County are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($650-$1350) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Gentry County?
A well-maintained septic system in Gentry 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 (Gentry County has predominantly somewhat poorly drained soils). 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

Population6,162
Est. Septic Homes863
Avg Pumping Cost$300
Drainage ClassSomewhat poorly drained
Septic SuitabilityVery limited

Common Septic Services

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

Data last updated: 2026-04-13