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Septic & well regulations in Medina County, TX
Medina County is located in the Hill Country region of Texas. Hill Country to South Texas Plain transition with thin limestone soils in the north (Edwards Plateau) and deeper clay/sandy soils in the south. Medina River and Medina Lake. 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. Site evaluation required. Permit application submitted to TCEQ Region 13 San Antonio office. Edwards Aquifer Authority (EAA) regulations apply for properties over the Edwards Aquifer recharge and contributing zones. 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 to TCEQ within 72 hours. Non-emergency repairs require a permit from TCEQ Region 13. Edwards Aquifer recharge zone repairs have additional notification requirements.
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.
Medina County Environmental Health
Medina County - TCEQ Region 13 San Antonio Office
(210) 490-3096Contact the county environmental health department for permit applications, soil evaluation scheduling, and regulatory questions.
Soil & Terrain Characteristics
Hill Country to South Texas Plain transition with thin limestone soils in the north (Edwards Plateau) and deeper clay/sandy soils in the south. Medina River and Medina Lake. Karst features in the northern portion over the Edwards Aquifer recharge zone.
County-Specific Considerations
Medina County is served by TCEQ Region 13 for OSSF permitting. Edwards Aquifer Authority jurisdiction in northern portions — special water quality protections for recharge zone. Hondo is the county seat. Medina Lake (irrigation reservoir). Castroville is a historic Alsatian community. Wells tap the Edwards, Trinity, and Carrizo-Wilcox aquifers.
Find Services in Medina County
Septic Pumping
Medina County
Septic Inspection
Medina County
Septic Installation
Medina County
Well Water Testing
Medina County
Well Pump Repair
Medina County
Well Drilling
Medina County
Emergency Services
Medina County
Water Treatment
Medina County
Drain Field Repair
Medina County
Septic to Sewer Conversion
Medina County
Aerobic Septic System
Medina County
Well Water Filtration
Medina County
PFAS Water Testing
Medina County
Related Resources
Septic Permits & Regulations in Medina County — FAQ
How much does a septic permit cost in Medina County, TX?
Septic permit fees in Medina County vary by permit type. New installation permits typically cost $200–$500, while repair permits are usually $100–$300. Contact Medina County - TCEQ Region 13 San Antonio Office at (210) 490-3096 for current fee schedules.
How long does it take to get a septic permit in Medina County?
The septic permit process in Medina 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 Medina County?
Yes. Medina 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 Medina County, TX?
Medina County - TCEQ Region 13 San Antonio Office oversees all septic system inspections in Medina County. Contact them at (210) 490-3096 to schedule an inspection or ask about requirements.
Can I install my own septic system in Medina County?
Medina County requires septic system installation by licensed contractors. All installations must be permitted through Medina County - TCEQ Region 13 San Antonio Office and pass inspection before the system can be used.
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