Texas Porch

Groundwater & Wells

The Edwards Aquifer and Water Wells in Travis County

Parts of Travis County sit over the Edwards Aquifer, which triggers stricter rules for wells, septic, and land development.

Travis County Home & Property

The Edwards Aquifer runs beneath parts of Travis County, especially in the western hills. It is a major drinking water source for the region. Because of this, Travis County limits how dense development can be in recharge and contributing zones. Residential lots served by individual wells must be at least 5 acres in these areas. Lots on a shared groundwater system need at least 3 acres each.

Wells may only draw from the Trinity or Edwards aquifer formations — not from Colorado River alluvium. All well plans must include GPS coordinates and meet TCEQ water quality standards. Use the TCEQ Edwards Aquifer Map Viewer to check if your property is in a protected zone.

Source to confirm: Travis County – Groundwater Availability Regulation

More Travis County notes

Property Tax Basics

Travis Central Appraisal District: What It Does

TCAD sets the value of your property, but a separate office collects your taxes.

Read note ->

Homestead Exemption

How to Get Your Homestead Exemption in Travis County

A homestead exemption lowers the taxable value of your home and can save hundreds per year.

Read note ->

Senior & Disability Exemptions

Extra Property Tax Help for Seniors and Disabled Homeowners

Homeowners 65 or older, or with a qualifying disability, can freeze their school district taxes.

Read note ->

Veteran Exemptions

Property Tax Exemptions for Veterans in Travis County

Veterans with a VA disability rating may qualify for partial or full property tax relief.

Read note ->