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Septic & well regulations in Midland County, TX

Midland County is located in the West Texas / Permian Basin region of Texas. Permian Basin with sandy soils, caliche, and some clay over the Edwards-Trinity (Plateau) and Ogallala Aquifers. Arid conditions. Understanding local permit requirements and soil conditions is essential before installing, repairing, or inspecting a septic system.

Permits & Requirements

New Installation

TCEQ OSSF permit required under 30 TAC Chapter 285. Midland County Health Department serves as a TCEQ Authorized Agent for local OSSF permitting. Site evaluation required. Properties 10 acres or larger with a single-family dwelling may qualify for the 10-acre exemption.

Repair

Emergency repairs may proceed without prior permit but must be reported within 72 hours. Non-emergency repairs require a permit from Midland County Health Department.

Inspection

Aerobic systems require inspections 3 times per year by a licensed Maintenance Provider. A 2-year initial maintenance contract is mandatory for all new aerobic installations.

Midland County Environmental Health

Midland County Health Department

Contact the county environmental health department for permit applications, soil evaluation scheduling, and regulatory questions.

Soil & Terrain Characteristics

Permian Basin with sandy soils, caliche, and some clay over the Edwards-Trinity (Plateau) and Ogallala Aquifers. Arid conditions. Caliche hardpan at moderate depths can impede percolation.

County-Specific Considerations

Midland County is a TCEQ Authorized Agent handling OSSF permits locally. Midland is the county seat and a major Permian Basin oil and gas center. Rapid population growth during oil booms. Urban areas have municipal sewer. Wells draw from the Edwards-Trinity and Ogallala aquifers with hard water and elevated TDS.

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Septic Permits & Regulations in Midland County — FAQ

How much does a septic permit cost in Midland County, TX?

Septic permit fees in Midland County vary by permit type. New installation permits typically cost $200–$500, while repair permits are usually $100–$300. Contact Midland County Health Department at (432) 688-1620 for current fee schedules.

How long does it take to get a septic permit in Midland County?

The septic permit process in Midland County generally takes 2–6 weeks, depending on soil evaluation scheduling and application completeness. Soil evaluations must be performed by a licensed soil scientist before applying.

Do I need a soil evaluation for a septic permit in Midland County?

Yes. Midland County requires a professional soil evaluation before issuing any septic permit. A licensed soil scientist evaluates soil type, depth, drainage, and water table levels to determine the appropriate septic system design.

Who handles septic inspections in Midland County, TX?

Midland County Health Department oversees all septic system inspections in Midland County. Contact them at (432) 688-1620 to schedule an inspection or ask about requirements.

Can I install my own septic system in Midland County?

Midland County requires septic system installation by licensed contractors. All installations must be permitted through Midland County Health Department and pass inspection before the system can be used.

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