A creek running across a property does not automatically mean the owner can pump it for irrigation, and a strong well does not automatically mean the water under the ground belongs entirely to whoever drilled it. Water rights in Texas are split into two separate legal systems depending on whether the water sits on the surface or below it, and the two systems work almost nothing alike. Anyone evaluating rural land needs to know which one applies before assuming what they can actually do with the water on a property.
The Two Water Rights Systems in Texas
Texas treats surface water and groundwater as fundamentally different kinds of property. Surface water, meaning rivers, streams, and lakes, is owned by the state and held in trust for the public. Groundwater, meaning water drawn from beneath the surface through a well, generally belongs to the landowner above it.
That split did not happen by accident. The two systems developed through separate legal histories, and Texas never tried to force them into a single framework, the way some other states have. The table below lays out the core difference.
| SURFACE WATER | GROUNDWATER | |
|---|---|---|
| Who owns it | The State of Texas | The landowner above it |
| Governing rule | Prior appropriation – first in time, first in right | Rule of capture |
| Who regulates it | Texas Commission on Environmental Quality | Local groundwater conservation districts |
| What you need to use it | A state water right permit, with exceptions for domestic and livestock use | Generally, no permit, though local district rules may apply |
Understanding Texas Surface Water Rights
Surface water in Texas runs on a claiming process known as prior appropriation, which the state adopted through a series of laws beginning in 1889 and consolidated in the Water Rights Adjudication Act of 1967, now codified in the Texas Water Code. The principle is simple, even though the history behind it is not. Whoever obtained a water right first holds the senior claim, and that claim gets served first during a drought, ahead of every permit issued after it.
Texas Water Code Section 11.142 allows a landowner to construct a dam or reservoir up to 200 acre-feet on their property for domestic and livestock purposes without a permit. This means a rancher building a stock pond under this limit, or watering cattle from a creek running through the property, does not need a permit for that specific use. Anything beyond that basic exemption, such as irrigating commercial crops from a lake, requires going through the application process with the state.
How Groundwater Rights Work Under the Rule of Capture
Groundwater follows a different rule entirely. Texas courts adopted the rule of capture in 1904, and the doctrine has held since, giving a landowner the right to pump essentially unlimited groundwater from beneath their own land. A neighbor whose well runs dry because of that pumping generally has no legal claim against the landowner doing the pumping, as long as the water is not wasted or taken with malicious intent.
That broad right is not unlimited in practice. Roughly one hundred groundwater conservation districts now cover much of the state, and where one exists, it can require well permits, set spacing requirements between wells, and cap how much water a landowner pulls each year. A 2012 ruling from the Texas Supreme Court, often called the Day decision, established that a landowner holds a real, constitutionally protected ownership interest in the groundwater beneath their land. This means a district that regulates too aggressively can run into legal takings claims under the Texas Constitution. A directory of local groundwater conservation districts and their specific rules is available at twdb.texas.gov.
How to Evaluate Water Rights on a Property
Two ranches sitting on the same river can have completely different water situations depending on whether either one carries a state surface water permit, and two properties over the same underground water source can have very different outlooks depending on which local district covers them. Buyers evaluating Hill Country land with spring-fed water, or any property where water access drives the value, need to look past the visible water on the property and into the paperwork behind it.
A few questions are worth running down before closing on land with meaningful water features.
- Does the property carry an existing state surface water right, and if so, what is its priority date and permitted use?
- Is the property inside a local groundwater conservation district, and what does that district’s well permitting and production rules actually require?
- Has a well on the property ever been the subject of a dispute with a neighboring landowner?
- If the seller has been using water for irrigation or livestock under an exemption rather than a permit, does that exemption actually apply to the buyer’s intended use?
None of these questions has a universal answer. They depend entirely on the specific county, the specific aquifer, and the specific history of the tract. That is exactly why a title review and a conversation with a water rights attorney belong in the due diligence process rather than an assumption based on what the land looks like.
The Long-Term Importance of Reliable Water
Water access shapes more than a closing checklist. It shapes what a property can actually support over time, whether that is a working cattle ranch, a wildlife management plan, or a homestead that depends on a single well. The properties with the most reliable water, and not necessarily the most acreage, tend to be the ones that hold their value and their usefulness the longest.
That is part of why treating water history as a standard part of evaluating land across Central Texas and the rest of the state matters as much as it does. The same applies to land already carrying a wildlife tax valuation, since several of the qualifying wildlife practices depend directly on dependable water on the property. Getting the water right does not guarantee a good purchase, but getting it wrong can undermine almost everything else about one.
Reference Links
[1] Texas Constitution and Statutes, Texas Water Code Chapter 11 (2026)
[2] Texas Commission on Environmental Quality (TCEQ), Water Rights Permitting (2026)
[3] Texas Water Development Board (TWDB), Groundwater Conservation Districts (2026)
