
Texas Well Drilling Cost: What Homeowners Pay in 2026
Texas well drilling costs $8,000 to $30,000+ in 2026. Depth, aquifer, and county drive the price. Here's the breakdown by region.
San Augustine County sits in the East Texas Piney Woods with deep sandy soils over iron-rich clay subsoils typical of the Carrizo-Wilcox formation. The Carrizo-Wilcox Aquifer supplies most domestic wells, and the highly permeable surface sands require proper septic setbacks to protect groundwater quality in this rural, forested county.
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Texas well drilling costs $8,000 to $30,000+ in 2026. Depth, aquifer, and county drive the price. Here's the breakdown by region.

Texas has roughly 2.6 million on-site septic systems under TCEQ Chapter 285 rules. Here's how permits, costs, and regional soils play out across all 254 counties.

Every Texas private well owner should test for coliform, nitrates, arsenic, and TDS. Here's what each region needs, plus where to send samples.
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