Septic Systems in Tangipahoa Parish, LA

Regulations, costs, soil data & local providers

Pop. 133,157 ~18% on septic ~9,587 septic homes Poorly drained soil

Septic pumping in Tangipahoa Parish, Louisiana costs $300-$550 (avg $400). A new septic system installation costs $5,300-$10,650. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 9,587 homes in this county use septic systems.

Septic System Costs in Tangipahoa Parish

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$350$500$700
Minor Repair$650$950$4,600
Conventional Installation$5,300$7,600$10,650
Aerobic System Installation$10,000$14,250$19,950
Drainfield Replacement$5,300$7,600$10,650
Perc Test$800$1,150$1,600

Cost estimates based on regional market data for Tangipahoa Parish, Louisiana. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Tangipahoa Parish

Drainage Class
Poorly drained
Hydrologic Group
C/D
Unique Soil Types
27

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Guyton 254 Poorly drained C/D
Myatt 216 Poorly drained B/D
Abita 208 Somewhat poorly drained C
Tangi 197 Moderately well drained C/D
Cahaba 189 Well drained B

Septic Tank Absorption Field Suitability

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

Not Limited (Good)0%
Somewhat Limited6.6%
Very Limited93.4%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Tangipahoa Parish

Monitoring Wells
27
Avg Depth to Water
23.1 ft
Median Depth
15 ft
Shallowest Recorded
-9.9 ft Shallow Risk

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

Source: USGS National Water Information System. Based on 447 measurements from monitoring wells.

Septic Regulations & Permits in Tangipahoa Parish

State Regulatory Body
Louisiana 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 Tangipahoa Parish health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Tangipahoa Parish

How much does septic pumping cost in Tangipahoa Parish?
Septic pumping in Tangipahoa Parish, Louisiana typically costs between $300 and $550, with an average of $400. 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 Tangipahoa Parish?
A conventional septic system installation in Tangipahoa Parish typically costs $5,300-$10,650. An aerobic treatment unit (ATU) costs $10,000-$19,950. 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 Tangipahoa Parish?
Yes. Virtually all counties in Louisiana 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 Tangipahoa Parish health department for current requirements and fees.
What soil types are in Tangipahoa Parish and how do they affect septic systems?
Tangipahoa Parish has predominantly Guyton, Myatt, Abita 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, 6.6% as "Somewhat Limited", and 93.4% as "Very Limited".
How often should I pump my septic tank in Tangipahoa Parish?
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. With approximately 9,587 septic systems in Tangipahoa Parish, there are many local providers offering regular pumping services.
Can I install a conventional septic system in Tangipahoa Parish?
It depends on your specific site. USDA soil data shows that 93.4% of soils in Tangipahoa Parish 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 ($800-$1600) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Tangipahoa Parish?
A well-maintained septic system in Tangipahoa Parish 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 (Tangipahoa Parish 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

Population133,157
Est. Septic Homes9,587
Avg Pumping Cost$400
Drainage ClassPoorly drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $650-$4,600
Installation: $5,300-$10,650

Data last updated: 2026-04-13