Septic Systems in Erath County, TX

Regulations, costs, soil data & local providers

Pop. 42,545 ~19.2% on septic ~3,267 septic homes Well drained soil

Septic pumping in Erath County, Texas 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 3,267 homes in this county use septic systems.

Septic System Costs in Erath County

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 Erath County, Texas. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Erath County

Drainage Class
Well drained
Hydrologic Group
C
Unique Soil Types
64
Avg Bedrock Depth
2.8 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Windthorst 511 Moderately well drained C
Bastsil 440 Well drained B
Hassee 434 Moderately well drained D
Lewisville 298 Well drained B
Purves 282 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 Limited22.1%
Very Limited77.9%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Septic Regulations & Permits in Erath County

State Regulatory Body
Texas Commission on Environmental Quality (TCEQ)
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
In designated areas

On-Site Sewage Facility (OSSF) permits required. Authorized agents at county level.

Contact the Erath County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Erath County

How much does septic pumping cost in Erath County?
Septic pumping in Erath County, Texas 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 Erath County?
A conventional septic system installation in Erath County typically costs $5,300-$10,650. An aerobic treatment unit (ATU) costs $10,000-$19,950. 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 Erath County?
Yes. Virtually all counties in Texas 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 Erath County health department for current requirements and fees.
What soil types are in Erath County and how do they affect septic systems?
Erath County has predominantly Windthorst, Bastsil, Hassee soils. The dominant drainage class is Well drained with hydrologic group C. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 22.1% as "Somewhat Limited", and 77.9% as "Very Limited".
How often should I pump my septic tank in Erath 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 Texas have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Erath County?
It depends on your specific site. USDA soil data shows that 77.9% of soils in Erath 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 ($800-$1600) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Erath County?
A well-maintained septic system in Erath 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 (Erath 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

Population42,545
Est. Septic Homes3,267
Avg Pumping Cost$400
Drainage ClassWell 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