DFW Well Service

Need well service in Ennis?

DFW Well Service helps property owners with water well drilling, pump service, inspections, and related well issues across North Texas.

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Welcome to Ennis, TX — DFW Well Service serves Ennis and Ellis County

Water Well Drilling & Pump Repair in Ennis, TX | DFW Well Service

Service Area Overview

Licensed well drilling and pump service in Ennis and Ellis County. Woodbine is the primary residential aquifer; Trinity is deep here (downdip).

DFW Well Service provides water well drilling, pump repair, and related services throughout Ennis and the surrounding Ellis County area. Known as the Bluebonnet Capital of Texas, Ennis blends a growing city core with extensive rural acreage — and many of those rural properties depend on private water wells. Whether you’re on an established rural tract or developing a new acreage property outside city water service, we can help.

Services We Provide in Ennis

Well Depth & Geology in the Ennis Area

Isometric geological cross-section cube illustration showing Ellis County, Texas stratigraphy — Topsoil, Taylor Group / younger Upper Cretaceous marl, chalk, and clay, Austin Chalk, Eagle Ford Shale, Woodbine Formation / Woodbine Aquifer, Washita and Fredericksburg Groups, and the Woodbine aquifer at the base.

Tap any layer in the cube — or in the list below — to see what it is and what it means for drilling a well here.

  1. Topsoil — Blackland Prairie (Houston Black)
    0–15 ft
  2. Austin Chalk
    varies
  3. Eagle Ford Shale
    below Austin Chalk
  4. Woodbine Formation / Woodbine Aquifer
    100–1,400 (variable across county) ft
  5. Trinity Group: Paluxy / Glen Rose / Hensell / Hosston (= Twin Mountains)
    ~2,000–3,000 (Hosston/Twin Mountains) ft
Tap or hover a layer in the cube to see what's beneath the surface here.

This cross-section shows the layer stack typical of Ellis County. The exact formations and depths under a specific Ennis-area property vary — see the details above.

Explore the full Ellis County geology →

Primary Aquifer
Woodbine

Secondary: Trinity (deep — Hosston/Twin Mountains at ~2,000–3,000 ft)

Typical Well Depth
Varies by location

We estimate from nearby well records

Groundwater District
Prairielands GCD
Confinement
deep confined subcrop; ~100–1,400 ft beneath Ellis County

Ellis County overview → Permit & regulations → TDLR License #61234 DKMPW Updated June 4, 2026

Wells around Ennis draw mainly from the Woodbine, the primary residential aquifer across Ellis County, with the deeper Trinity as a secondary target far below it. Ellis County sits on Austin Chalk and Eagle Ford bedrock, and the Trinity is present only at substantial depth countywide. The Woodbine has a regional thickness of roughly 100–1,400 feet; the deeper Trinity sands (the Twin Mountains and Paluxy) reach roughly 2,000–3,000 feet down in southeastern Ellis County — not the few-hundred-foot range you’d see in the outcrop counties to the west. Ennis sits in the southeastern, farther-downdip part of the county, where both depth and mineralization run higher than around Midlothian or Waxahachie.

Drilling rates in Ellis County typically run $32–$45 per foot. Trinity completions can be substantially deeper than Woodbine completions and project cost varies accordingly.

Ellis County Permit Requirements

All new wells in Ellis County require a permit through the Prairielands Groundwater Conservation District before drilling begins. The PGCD regulates well spacing, construction standards, and production for both exempt domestic wells and non-exempt production wells. For more detail on the county permitting process, see our guide to Ellis County water well regulations.

Ready to move forward? DFW Well Service (TDLR License #61234 DKMPW) offers free estimates for new well drilling anywhere in Ellis County. Call us at (940) 536-8560 to discuss your property and get a quote.

Frequently Asked Questions

How deep are water wells in the Ennis area?
There's no single typical depth across Ellis County — it varies meaningfully from one property to the next, so we review the driller's logs from neighboring wells and check public-water availability before quoting a project. The Woodbine is the main residential aquifer; the deeper Trinity sits well below it — in southeastern Ellis County the Twin Mountains sand tops out around 2,000–3,000 feet down, not the few-hundred-foot range you'd see in the outcrop counties to the west. Ennis is in southeastern Ellis County, farther downdip than Midlothian or Waxahachie, so both depth and mineralization run higher here.
Does Ennis have a groundwater conservation district?
Yes. Ellis County falls within the Prairielands Groundwater Conservation District (PGCD). A permit is required before drilling a new well. DFW Well Service handles the permit application as part of our standard drilling process.
Can I drill a well within Ennis city limits?
Most properties within the Ennis city limits are served by municipal water. Private wells are more common on rural acreage outside city boundaries in unincorporated Ellis County. If your property is on the rural edge or on acreage, a well may be permitted. Contact us to discuss your specific parcel.
What does well drilling cost near Ennis?
Drilling rates in Ellis County typically run $32–$45 per foot depending on depth, formation hardness, and well diameter. Total cost depends on completion depth and the full system, and Trinity completions in southeastern Ellis County can be substantially deeper than upper-Woodbine completions. We provide a free itemized written estimate after reviewing neighboring driller's logs for your parcel.
How long does it take to drill a well in Ennis?
Once permitting is complete, most residential wells can be drilled in one to two days. The full project from permit application to a functioning system with pump and pressure tank typically takes two to four weeks depending on Prairielands GCD processing times.
Do you service existing wells and pumps near Ennis?
Yes. We repair and replace submersible pumps, pressure tanks, well seals, and electrical components throughout Ellis County. If you have low water pressure, air in the lines, or a pump that won't run, call us for a diagnostic visit.
Is the well water in Ennis salty or brackish?
It varies across Ellis County. Texas Water Development Board data shows the Woodbine — the main aquifer — is fresher in the northwest (near Midlothian) and saltier toward the southeast (near Ennis), and most well water here exceeds the EPA's secondary 500 mg/L standard for total dissolved solids (a measure of how mineral-heavy the water is). Around Ennis, a full water-quality test is important and treatment is common.

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