Texas Water Rights, Groundwater & Private Wells
What Texas landowners should know before drilling, restoring, pumping, diverting, storing, or relying on water connected to their property.
Texas does not treat all water the same way. Water beneath your land and water flowing across it are governed by two different legal frameworks. The instinct "it's on my property, so I own it" is reasonable for groundwater in broad terms: and can be badly wrong for a creek, river, lake or other state water. Work out which kind of water you are dealing with before you assume anything about what you may do with it.
Start here: what kind of water are you dealing with?
- Groundwater: water beneath the surface, in an aquifer. Generally governed by Texas groundwater law and the rule of capture, subject to significant limits described below.
- Surface water in a watercourse: streams, rivers, creeks and natural lakes. This is generally state water, governed by an entirely separate permitting framework, even where it crosses your land.
- Diffuse surface water: rainfall and runoff moving across the ground before it reaches a defined watercourse. Treated differently again from water already in a stream.
- Springs: can sit at the boundary between groundwater and surface water depending on the circumstances, which is exactly why they cause disputes.
- Ponds, stock tanks and impoundments: what you may build and store depends on where the water comes from, the size of the impoundment and the intended use.
Two properties can look identical from the road and have completely different answers: because the answer depends on the water, the location, the local district and the intended use.
Groundwater ownership and the rule of capture
Texas recognises a landowner interest in the groundwater beneath the surface, and the rule of capture is the historical framework courts have applied. In its simplest form, it means a landowner may generally pump groundwater from beneath their land even if doing so affects a neighbour's well.
It is not an unlimited or absolute right, and treating it as one is the most common mistake we see. Limits and exceptions that may apply include:
- Groundwater Conservation District regulation: often the most practically significant limit of all.
- Well spacing requirements set by a district.
- Production limits on how much may be pumped.
- Waste: wasting groundwater is not protected.
- Malicious pumping intended to injure a neighbour.
- Negligence causing subsidence of neighbouring land.
- Drilling that improperly crosses a property boundary: a trespass question, not a water question.
- Special statutory regimes and aquifer authorities, which apply their own rules in particular areas of Texas.
Texas courts have also addressed groundwater as a property interest in the context of regulation. If a specific dispute or a significant investment turns on this, that is a question for a Texas water lawyer, not a website.
Groundwater Conservation Districts: check this first
A Groundwater Conservation District (GCD) is a local governmental district created to manage groundwater within its boundaries. Districts do not cover all of Texas, their boundaries do not follow county lines everywhere, and each district writes its own rules.
Before drilling, substantially altering, restoring, or relying on a private well, determine whether the property is inside a Groundwater Conservation District and review that district's current rules.
District rules may address registration, permits: exemptions, spacing, production limits, reporting, drilling and completion standards, drought-stage restrictions, and transporting water out of the district.
You will see it said online that a well is automatically exempt if the tract is at least 10 acres and the well produces under 25,000 gallons per day. Figures of that kind come from specific statutory exemption language and from particular district rules they are not a universal Texas formula, and applying them to your property without checking is exactly how people end up out of compliance. Confirm the exemption and permitting rules that apply to your tract with the district that actually governs it.
Can I drill a private well on my Texas property?
Often yes, but "yes" is not the whole answer, and the conditions are what matter. The realistic answer depends on where the property is, whether a GCD has jurisdiction, what that district requires: well construction and completion standards, the intended use and volume, whether public or community water service is available or required, and any deed restrictions or subdivision rules.
Well construction in Texas is also a licensed activity. Water well drillers and pump installers are licensed through the Texas Department of Licensing and Regulation, and construction standards exist to protect groundwater from contamination.
Useful official starting points: the Texas Water Development Board for groundwater data, aquifer information and the state well database; TDLR for driller licensing and well construction rules; and the applicable GCD for the rules that will actually govern your permit.
I found an old well, can I put it back into service?
This question comes up constantly on rural property, and the honest answer is: not until it has been properly evaluated. An old well is not automatically a usable well, and an unused well is not automatically a harmless one.
The distinctions matter legally as well as practically:
- Functioning well: in use and maintained.
- Inactive well: not currently used but kept in a condition that protects the aquifer.
- Abandoned well: no longer in use and not maintained in the condition the rules require.
- Deteriorated well: in a condition that may allow contaminants to reach groundwater.
An abandoned or deteriorated well can be a direct pathway for surface contamination into an aquifer, and an open or unstable well is a genuine physical safety hazard. Texas rules impose obligations regarding such wells, which can include capping, repair or plugging by a licensed professional. Do not assume that "cleaning it out" is legally or technically sufficient.
A practical investigation pathway
- Identify the well: location, casing, depth if visible, and any surface equipment.
- Look for existing Texas well records in the state water well database.
- Determine approximate depth and aquifer if records exist.
- Determine whether the property is inside a GCD.
- Review that district's requirements for registration, permitting and reworking existing wells.
- Determine whether the well is legally abandoned or deteriorated under applicable rules.
- Have the physical condition evaluated by a licensed water well professional.
- Address applicable repair, plugging, registration or reporting obligations.
- Test water quality before any household use.
- Verify current requirements before returning the well to service.
State of Texas water well reports
Texas requires licensed drillers to file reports for wells they complete, and those reports are collected in a state database. For a homeowner, that database is a useful research tool: it may reveal that a well exists, roughly how deep it is, when it was drilled and what it encountered.
A record is not a clean bill of health. The existence of a historical well report does not establish that a well is currently safe, productive, permitted, compliant or even still physically intact. Many older wells predate current reporting requirements and appear nowhere at all.
Aquifers beneath Texas property
An aquifer is a geologic formation that holds and transmits usable groundwater. Texas has major and minor aquifers spanning enormous areas.
Two things follow that landowners often miss. First, aquifers cross property lines: the water beneath your land is part of a shared system, which is precisely why districts regulate it. Second, sitting above an aquifer does not guarantee a good well. Depth, yield and water quality vary by location and geology, sometimes over short distances. We do not publish well-depth predictions, because a credible answer requires local geology and a professional.
Surface water is different
Surface water in a defined watercourse in Texas is generally state water, held by the state for the public. That remains true where the creek runs through your land.
Rights to use state water are generally obtained through a water right administered by the Texas Commission on Environmental Quality, under a prior appropriation system commonly summarised as "first in time, first in right" older rights are senior to newer ones when supply is short. Certain uses, such as limited domestic and livestock use, are treated differently under Texas Water Code provisions.
Owning both banks of a creek does not by itself give you unrestricted rights to dam, divert, store or sell that water. Diversion and storage generally require authorisation, and enforcement against unauthorised diversion is real.
Ponds, stock tanks and small reservoirs
The Texas Water Code provides a limited exemption allowing certain small impoundments for domestic and livestock purposes without a water right, subject to conditions on size and purpose. This is where landowners most often get caught out, because the exemption is narrower than the folklore around it.
Points to confirm before building or enlarging an impoundment:
- The storage capacity threshold in the current statute, capacity is measured in acre-feet, not surface appearance.
- The permitted purposes: domestic and livestock use is treated differently from irrigation, commercial or industrial use.
- Whether the impoundment is on a watercourse, which changes the analysis considerably.
- Whether TCEQ authorisation is required for your specific circumstances.
- Dam safety requirements, which apply to larger structures.
Confirm the current thresholds and conditions directly with TCEQ or a Texas water lawyer before construction. These are statutory numbers capable of amendment, and an impoundment is expensive to unbuild.
Drought changes the practical picture
Water availability is not static. Aquifer levels rise and fall, surface supply varies, districts may impose drought-stage pumping restrictions, and water rights administration can curtail junior rights when supply is short.
An existing well does not guarantee a permanent supply, and a wet-year yield is not a design assumption. Official Texas drought and water condition information is published by state agencies and is the right place to check current conditions.
Water and development
Water is increasingly the subject that connects landowners to development questions: large water users, new supply projects, and infrastructure all interact with the same aquifers and river basins. That is a legitimate thing to follow, and our related resources cover it:
- Reservoirs & water-supply projects and the 2027 State Water Plan
- Texas Water Fund & water-infrastructure financing
- Data centers & rural land
- Eminent domain
- Land & energy research tools how to research a specific project
Understanding your own water position comes first. It is the part you control.
Before buying Texas land: water due diligence
Water is one of the most commonly under-investigated aspects of a rural land purchase, and one of the most expensive to get wrong. Questions worth answering before closing:
- What is the property's actual water source?
- Is an existing well documented, and where are the records?
- Which aquifer serves it, and at what depth?
- How old is the well, and when was it last worked on?
- Has production been tested, recently, and in a dry year?
- Has water quality been tested?
- Is the property inside a Groundwater Conservation District?
- Are any surface-water rights actually conveyed with the property?
- Have water rights been reserved or separately conveyed by a prior owner?
- Are there easements or agreements affecting water?
- Does the property depend on a water supply corporation or public utility?
- Is the existing well compliant with current requirements?
- Are there abandoned wells on the tract?
- Does your intended use, residential, agricultural or commercial, change the analysis?
Depending on the property, answering these properly may require title review, deed research, district inquiries, regulatory review, and engineering or legal advice. That is normal for rural land, and it is cheaper before closing than after.
Texas Homestead Law provides educational information and links to official sources. This page is not legal, engineering, drilling or water-quality advice, and it cannot tell you what rules apply to your specific property. Groundwater district rules, statutory thresholds and agency requirements change. Confirm current requirements with the applicable district and agency, and consult a qualified professional for your own situation.
Sources & references
The Texas Water Code, Chapter 11 governs state surface water, water rights and the appropriation system, and contains the exemption provisions applicable to certain domestic and livestock impoundments. Chapter 36 governs groundwater conservation districts, including their regulatory powers, permitting and exemptions.
The Texas Commission on Environmental Quality administers surface water rights and related authorisations. The Texas Water Development Board publishes aquifer information, groundwater data, the state water well database and groundwater conservation district information. The Texas Department of Licensing and Regulation licenses water well drillers and pump installers and administers water well construction and plugging requirements.
Texas A&M AgriLife Extension publishes educational material explaining Texas water law concepts. Educational material is useful for understanding concepts but does not override current statutes, agency rules or court decisions, and older publications may not reflect current law.
Groundwater district rules, statutory thresholds and agency processes change. Where this page and an official source differ, the official source controls. Reviewed August 12, 2026.