Septic Systems in Midland County, TX

Regulations, costs, soil data & local providers

Pop. 169,983 ~12% on septic ~8,159 septic homes Well drained soil

Septic pumping in Midland County, Texas costs $300-$550 (avg $400). A new septic system installation costs $5,600-$11,200. USDA soil data rates 11.7% of county soils as suitable for septic absorption fields. Approximately 8,159 homes in this county use septic systems.

Septic System Costs in Midland County

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$400$550$750
Minor Repair$700$1,000$4,900
Conventional Installation$5,600$8,000$11,200
Aerobic System Installation$10,500$15,000$21,000
Drainfield Replacement$5,600$8,000$11,200
Perc Test$850$1,200$1,700

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

Soil & Septic Suitability in Midland County

Drainage Class
Well drained
Hydrologic Group
D
Unique Soil Types
48
Avg Bedrock Depth
0.6 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Gomez 273 Well drained A
Amarillo 204 Well drained B
Midessa 198 Well drained B
Arvana 182 Well drained C
Upton 159 Well drained D

Septic Tank Absorption Field Suitability

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

Not Limited (Good)11.7%
Somewhat Limited24.2%
Very Limited64.1%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Midland County

Monitoring Wells
9
Avg Depth to Water
40.6 ft
Median Depth
46.5 ft
Shallowest Recorded
21.3 ft

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

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

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

Septic System FAQ for Midland County

How much does septic pumping cost in Midland County?
Septic pumping in Midland 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 Midland County?
A conventional septic system installation in Midland County typically costs $5,600-$11,200. An aerobic treatment unit (ATU) costs $10,500-$21,000. 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 Midland 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 Midland County health department for current requirements and fees.
What soil types are in Midland County and how do they affect septic systems?
Midland County has predominantly Gomez, Amarillo, Midessa soils. The dominant drainage class is Well drained with hydrologic group D. The USDA rates 11.7% of surveyed soils as "Not Limited" for septic absorption fields, 24.2% as "Somewhat Limited", and 64.1% as "Very Limited".
How often should I pump my septic tank in Midland 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. With approximately 8,159 septic systems in Midland County, there are many local providers offering regular pumping services.
Can I install a conventional septic system in Midland County?
It depends on your specific site. USDA soil data shows that 64.1% of soils in Midland County are rated "Very Limited" for septic absorption fields, while only 11.7% 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 ($850-$1700) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Midland County?
A well-maintained septic system in Midland 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 (Midland 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

Population169,983
Est. Septic Homes8,159
Avg Pumping Cost$400
Drainage ClassWell drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $700-$4,900
Installation: $5,600-$11,200

Data last updated: 2026-04-13