Septic Systems in Grenada County, MS

Regulations, costs, soil data & local providers

Pop. 21,629 ~42% on septic ~3,634 septic homes Moderately well drained soil

Septic pumping in Grenada County, Mississippi 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 3,634 homes in this county use septic systems.

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

Soil & Septic Suitability in Grenada County

Drainage Class
Moderately well drained
Hydrologic Group
D
Unique Soil Types
38

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Memphis 829 Well drained B
Loring 800 Moderately well drained D
Providence 481 Moderately well drained C/D
Grenada 461 Moderately well drained D
Alligator 360 Poorly drained D

Septic Tank Absorption Field Suitability

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

Not Limited (Good)0%
Somewhat Limited7.9%
Very Limited92.1%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Grenada County

Monitoring Wells
6
Avg Depth to Water
10.2 ft
Median Depth
10.8 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 149 measurements from monitoring wells.

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

Septic System FAQ for Grenada County

How much does septic pumping cost in Grenada County?
Septic pumping in Grenada 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 Grenada County?
A conventional septic system installation in Grenada County typically costs $4,550-$9,100. An aerobic treatment unit (ATU) costs $8,500-$17,000. 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 Grenada 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 Grenada County health department for current requirements and fees.
What soil types are in Grenada County and how do they affect septic systems?
Grenada County has predominantly Memphis, Loring, Providence soils. The dominant drainage class is Moderately well drained with hydrologic group D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 7.9% as "Somewhat Limited", and 92.1% as "Very Limited".
How often should I pump my septic tank in Grenada 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.
Can I install a conventional septic system in Grenada County?
It depends on your specific site. USDA soil data shows that 92.1% of soils in Grenada 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 Grenada County?
A well-maintained septic system in Grenada 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 (Grenada 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

Population21,629
Est. Septic Homes3,634
Avg Pumping Cost$300
Drainage ClassModerately well 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