Septic Systems in New Madrid County, MO

Regulations, costs, soil data & local providers

Pop. 16,434 ~30% on septic ~1,972 septic homes Poorly drained soil

Septic pumping in New Madrid County, Missouri costs $250-$500 (avg $350). A new septic system installation costs $4,750-$9,500. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 1,972 homes in this county use septic systems.

Septic System Costs in New Madrid County

ServiceLowAverageHigh
Pumping / Cleaning$250$350$500
Routine Inspection$200$250$350
Real Estate Inspection$300$450$650
Minor Repair$600$850$4,200
Conventional Installation$4,750$6,800$9,500
Aerobic System Installation$8,900$12,750$17,850
Drainfield Replacement$4,750$6,800$9,500
Perc Test$700$1,000$1,400

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

Soil & Septic Suitability in New Madrid County

Drainage Class
Poorly drained
Hydrologic Group
C/D
Unique Soil Types
35

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Dundee 630 Somewhat poorly drained C/D
Crevasse 570 Excessively drained A
Bosket 535 Well drained B
Sharkey 526 Poorly drained D
Commerce 510 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 Limited1.1%
Very Limited98.9%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in New Madrid County

Monitoring Wells
14
Avg Depth to Water
10.8 ft
Median Depth
11.4 ft
Shallowest Recorded
-2.6 ft Shallow Risk

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

Source: USGS National Water Information System. Based on 138 measurements from monitoring wells.

Septic Regulations & Permits in New Madrid 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 New Madrid County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for New Madrid County

How much does septic pumping cost in New Madrid County?
Septic pumping in New Madrid County, Missouri typically costs between $250 and $500, with an average of $350. 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 New Madrid County?
A conventional septic system installation in New Madrid County typically costs $4,750-$9,500. An aerobic treatment unit (ATU) costs $8,900-$17,850. Given the predominantly 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 New Madrid 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 New Madrid County health department for current requirements and fees.
What soil types are in New Madrid County and how do they affect septic systems?
New Madrid County has predominantly Dundee, Crevasse, Bosket soils. The dominant drainage class is Poorly drained with hydrologic group C/D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 1.1% as "Somewhat Limited", and 98.9% as "Very Limited".
How often should I pump my septic tank in New Madrid 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 New Madrid County?
It depends on your specific site. USDA soil data shows that 98.9% of soils in New Madrid 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 ($700-$1400) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in New Madrid County?
A well-maintained septic system in New Madrid 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 (New Madrid County has predominantly 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

Population16,434
Est. Septic Homes1,972
Avg Pumping Cost$350
Drainage ClassPoorly drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $250-$500
Inspection: $200-$350
Repair: $600-$4,200
Installation: $4,750-$9,500

Data last updated: 2026-04-13