The 90-day deadline for an acreage buyer near Argyle doesn't appear on the closing statement. Under the North Texas Groundwater Conservation District's rules, a new owner has 90 days after a change in ownership to file a Transfer of Well Ownership form for any well that is required to be registered. The rule covers capped and inactive wells too. Once those 90 days pass, the new owner may not produce groundwater from that well until the form is on file.
The deadline is the easy part. The harder question is whether the well is on the district's books at all. In Denton County, that decides whether the well counts when someone nearby applies for a much larger one.
The District That Governs a Denton County Well
Denton County parcels fall under the North Texas Groundwater Conservation District, whose boundaries match Collin, Cooke and Denton counties. The Texas Legislature created it in 2009. Its rules were last amended July 14, 2026, and they apply to Argyle, Bartonville, Ponder, Justin, Krum and the rest of the county. The Upper Trinity Groundwater Conservation District, which shows up often in Parker County and Wise County land deals, covers Montague, Wise, Parker and Hood counties and has no authority over a Denton County tract.
The Exemption That Leaves Older Wells Out
Under the North Texas district's rules, the general requirement is that every water well must be registered. A new exempt well needs a district-issued Notice to Proceed before drilling starts, and a new non-exempt well needs a Production Permit. Subsection f of Rule 3.1 then exempts "Pre-Effective Date Exempt Wells in existence or for which drilling commenced prior to April 1, 2011." The rules define that group to include older wells used solely for domestic, livestock or poultry purposes, along with certain small wells covered under the district's earlier temporary rules, and none of them have to register.
The next paragraph of the same rule spells out what that exemption costs the owner:
"Wells not registered with the District are not considered in a review of a proposed new well's impact on existing wells."
The district encourages owners of these older wells to register so the wells get the benefits of existing-well status. That status means the well is considered in spacing reviews for a proposed new well and in permitting decisions for new non-exempt wells.
That gives a 1990s-era stock well on a 10-acre Argyle-area tract two possible standings. If it was registered, it is an existing well that the district has to account for. If it was not, the district's review of a neighbor's proposed new well leaves it out. Nothing about the well itself changes between those two cases. Only the paperwork does.
How Far Apart the Rules Put a Large Well
The spacing rule shows why registration matters. The standard requirement under Rule 4.2, subject to the exceptions the rules allow, is that a new well sits at least 50 feet from the property line. A well equipped to pump 17.36 gallons per minute or less must also sit 100 feet from existing registered wells in the same aquifer.
Larger wells use aquifer-specific formulas. For the Trinity Antlers, the formation most of the applications below draw from, the distance is 1,700 feet plus 1.2 times the well's gallons per minute. The Paluxy uses 2,500 feet, the Twin Mountains 1,175 feet and the Woodbine 5,000 feet, each plus the same multiplier. Under that formula, a 150-gpm Antlers well must sit 1,880 feet from existing registered Antlers wells, and a 450-gpm well must sit 2,240 feet away. A registered well inside that radius affects where the big well can go. An unregistered well at the same spot does not.
The district's description of hydrogeological reports says they exist to assess a proposed well's impact on existing wells and on the aquifer.
Applications on the District's Recent Agendas Near Argyle
Large wells are being proposed close to the acreage this team works with. The district's meeting agendas over the past two years have noticed these applications for hearing:
| Applicant | Location on the agenda | Requested capacity | Requested volume | Agenda date |
|---|---|---|---|---|
| Argyle WSC, Furst Ranch Wells No. 1 and 2 | About 1,560 feet north of Smoot Ln and about 2,060 feet south of Keith Rd, both east of US 377 | 450 gpm per well, Antlers | Amendment to raise 130,086,000 to 260,172,000 gal/yr | Sept. 9, 2025 |
| Private agricultural applicant | E. Jeter Road, Bartonville | 150 gpm, Antlers | 30,000,000 gal/yr for hay irrigation, pond filling and livestock | Feb. 11, 2025 |
| Tabor Ranch 380 Development LLC | 4696 George Owens Road, near Ponder | 80 gpm per well, two wells, Antlers | 27,375,000 gal/yr | Apr. 8, 2025 |
| Converge Justin LLC | 11584 FM 156 S, Justin | 70 gpm, Antlers | 3,791,811 gal/yr for landscape irrigation | Oct. 21, 2025 |
| Bolivar WSC, Clearwater wells | Near Krum | 275 gpm per well, four wells, Antlers | 191,625,000 gal/yr | Dec. 9, 2025 |
| Treeline Water Well LLC | 14026 Sam Reynolds Road, near Justin | 198 gpm, Antlers | 34,857,540 gal/yr for irrigation and pond filling | Apr. 14, 2026 |
Two of these entries changed later. On Aug. 11, 2026, the district's agenda listed an amendment from Tabor Ranch MUD of Denton County that would raise the Ponder-area permit from 27.375 million to 127.75 million gallons a year across four wells. The Oct. 13, 2026 agenda listed Treeline Water Well, LLC v. North Texas Groundwater Conservation District, a case in Denton County's 477th Judicial District Court.
Many of these requests come from water supply corporations serving growing communities, and the volumes match that purpose. For an acreage buyer, the table matters because each of these hearings includes a spacing review, and only registered wells are part of it.
The 17.36-Gallon Line and What Sits Below It
Most wells on Argyle-area acreage never get near those volumes. A well registered and drilled after the district's permitting rules took effect is exempt from permitting if it can produce 17.36 gallons per minute or less as equipped. The district's FAQ says these wells are exempt from permitting, reporting, metering and production fees, and that the exemption has no minimum tract size.
The district's 2026 fee schedule sets these costs:
- New well under 17.36 gpm: $250 registration fee
- New well over 17.36 gpm: $750 for registration and production permit application
- Existing exempt well: registration is free
- Late well reports: $100 at 60 days, $250 at 90 days and $500 at 120 days past the drilling deadline, then a major violation
Registering an older exempt well costs nothing, so the main cost of leaving it off the books is the protection described above.
Larger wells come with ongoing work. Wells that aren't exempt need meters, monthly meter logs and quarterly production reports, and they pay use fees within 60 days after each quarter. In 2026, the non-agricultural fee starts at $0.10 per 1,000 gallons for the first 10 million gallons a quarter, and agricultural use is billed at $1 per acre-foot. A ranch with a permitted hay-irrigation well comes with that reporting schedule. Its transfer also has a condition. The district will not approve a Transfer of Well Ownership until the seller has paid all outstanding fees and penalties and resolved any compliance issues.
Rules Change at the Wise County Line
Buyers who compare tracts across the Denton–Wise county line are comparing two different sets of rules. In the Upper Trinity district's rules, adopted Aug. 27, 2026, new or substantially altered wells generally need a 2-acre minimum tract. That minimum rises to 5 acres where the Trinity is thin and west of a defined line. For livestock or agricultural wells drilled or approved on or after Sept. 1, 2026, the Upper Trinity exemption also depends on tract size: a capacity of 17.36 gpm or less on a tract larger than 10 acres, or 8 gpm or less on a tract that meets the minimum-tract rules.
The North Texas district's FAQ sets no minimum tract size for its exemption. A 3-acre tract can support a new exempt well under the North Texas rules, while the same acreage across the county line falls under a different standard.
Questions for the Listing File
All of this comes down to a few questions that belong in due diligence on any well-served tract near Argyle:
- Is the well registered with the North Texas Groundwater Conservation District, and was it drilled before or after April 1, 2011?
- Is it equipped at 17.36 gpm or less, or does it carry a production permit with meter and reporting obligations?
- If it is permitted, are all fees and reports current, so the transfer can be approved?
- Is there a capped or inactive well on the property? The 90-day transfer rule covers those too. If a well is abandoned, the Texas Department of Licensing and Regulation makes the landowner responsible for plugging it or bringing it into compliance.
- How far is the well from the septic system? The Texas Water Development Board lists minimum separations of 50 feet from a septic tank and 100 feet from a drain field or spray area.
This post is general information, not legal advice. Before acting on a specific property, confirm how these rules apply with the district, a licensed water well professional or a real estate attorney.
When we take on a farm and ranch listing or a buyer's search around Argyle, well registration status, permit standing and transfer timing go on the same checklist as the survey and the ag valuation. If a tract you're considering runs on a private well, North Texas Team can help you gather the records before you write an offer. Schedule a Concierge Consultation.
