Septic Systems in Laclede County, MO

Regulations, costs, soil data & local providers

Pop. 36,039 ~30% on septic ~4,325 septic homes Well drained soil

Septic pumping in Laclede 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 4,325 homes in this county use septic systems.

Septic System Costs in Laclede 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 Laclede County, Missouri. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Laclede County

Drainage Class
Well drained
Hydrologic Group
B
Unique Soil Types
67
Avg Bedrock Depth
2.7 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Gatewood 445 Moderately well drained D
Cedargap 377 Well drained B
Poynor 305 Well drained B
Ocie 244 Moderately well drained C
Viraton 203 Moderately well drained D

Septic Tank Absorption Field Suitability

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

Not Limited (Good)0%
Somewhat Limited13.9%
Very Limited86.1%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Laclede County

Monitoring Wells
1
Avg Depth to Water
224.1 ft
Median Depth
225.3 ft
Shallowest Recorded
212.8 ft

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

Source: USGS National Water Information System. Based on 27 measurements from monitoring wells.

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

Septic System FAQ for Laclede County

How much does septic pumping cost in Laclede County?
Septic pumping in Laclede 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 Laclede County?
A conventional septic system installation in Laclede County typically costs $4,750-$9,500. An aerobic treatment unit (ATU) costs $8,900-$17,850. Given the predominantly well 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 Laclede 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 Laclede County health department for current requirements and fees.
What soil types are in Laclede County and how do they affect septic systems?
Laclede County has predominantly Gatewood, Cedargap, Poynor soils. The dominant drainage class is Well drained with hydrologic group B. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 13.9% as "Somewhat Limited", and 86.1% as "Very Limited".
How often should I pump my septic tank in Laclede 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 Laclede County?
It depends on your specific site. USDA soil data shows that 86.1% of soils in Laclede 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 Laclede County?
A well-maintained septic system in Laclede 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 (Laclede County has predominantly well 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

Population36,039
Est. Septic Homes4,325
Avg Pumping Cost$350
Drainage ClassWell 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