Septic Systems in Montgomery County, MS

Regulations, costs, soil data & local providers

Pop. 9,822 ~49% on septic ~1,925 septic homes Moderately well drained soil

Septic pumping in Montgomery County, Mississippi costs $200-$400 (avg $300). A new septic system installation costs $4,300-$8,600. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 1,925 homes in this county use septic systems.

Septic System Costs in Montgomery County

ServiceLowAverageHigh
Pumping / Cleaning$200$300$400
Routine Inspection$200$250$350
Real Estate Inspection$300$400$550
Minor Repair$500$750$3,800
Conventional Installation$4,300$6,150$8,600
Aerobic System Installation$8,100$11,550$16,150
Drainfield Replacement$4,300$6,150$8,600
Perc Test$650$900$1,250

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

Soil & Septic Suitability in Montgomery County

Drainage Class
Moderately well drained
Hydrologic Group
C/D
Unique Soil Types
30

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Providence 557 Moderately well drained C/D
Grenada 183 Moderately well drained C/D
Loring 180 Moderately well drained C/D
Smithdale 175 Well drained B
Arkabutla 124 Somewhat poorly drained B/D

Septic Tank Absorption Field Suitability

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

Not Limited (Good)0%
Somewhat Limited3.8%
Very Limited96.2%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Montgomery County

Monitoring Wells
2
Avg Depth to Water
7.5 ft
Median Depth
8 ft
Shallowest Recorded
4.3 ft

Moderate water table depth. Some sites may require modified systems or mound systems.

Source: USGS National Water Information System. Based on 9 measurements from monitoring wells.

Septic Regulations & Permits in Montgomery County

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

Septic System FAQ for Montgomery County

How much does septic pumping cost in Montgomery County?
Septic pumping in Montgomery County, Mississippi 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 Montgomery County?
A conventional septic system installation in Montgomery County typically costs $4,300-$8,600. An aerobic treatment unit (ATU) costs $8,100-$16,150. Given the predominantly moderately 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 Montgomery County?
Yes. Virtually all counties in Mississippi 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 Montgomery County health department for current requirements and fees.
What soil types are in Montgomery County and how do they affect septic systems?
Montgomery County has predominantly Providence, Grenada, Loring soils. The dominant drainage class is Moderately well drained with hydrologic group C/D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 3.8% as "Somewhat Limited", and 96.2% as "Very Limited".
How often should I pump my septic tank in Montgomery 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 Mississippi have mandatory pumping schedules — check with your local health department.
Does the water table in Montgomery County affect septic systems?
Yes. The average groundwater depth in Montgomery County is approximately 7.5 feet, based on USGS monitoring data from 2 wells. While this is sufficient for many conventional systems, sites with lower elevations or seasonal water table fluctuations may require alternative system designs. A site-specific evaluation is always recommended.
Can I install a conventional septic system in Montgomery County?
It depends on your specific site. USDA soil data shows that 96.2% of soils in Montgomery 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-$1250) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Montgomery County?
A well-maintained septic system in Montgomery 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 (Montgomery County has predominantly moderately 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

Population9,822
Est. Septic Homes1,925
Avg Pumping Cost$300
Drainage ClassModerately well drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $200-$400
Inspection: $200-$350
Repair: $500-$3,800
Installation: $4,300-$8,600

Data last updated: 2026-04-13