DFW Well Service

Need well service in Sherman?

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 Sherman, TX — DFW Well Service serves Sherman and Grayson County

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

Service Area Overview

DFW Well Service drills and services wells in Sherman and Grayson County under Red River GCD. Woodbine, Antlers (Trinity); depth varies by parcel.

DFW Well Service provides water well drilling, pump repair, and inspection services in Sherman and throughout Grayson County. As the county seat and one of North Texas’s larger cities, Sherman combines established residential areas with substantial rural acreage surroundings where private wells are the primary water source. With growing regional investment and population, demand for reliable water well services continues to rise.

Services We Provide in Sherman

Well Depth & Geology in the Sherman Area

Isometric geological cross-section cube illustration showing Grayson County, Texas stratigraphy — Topsoil, Upper Cretaceous units above Woodbine (Pawpaw Fm, Eagle Ford Shale, Austin Chalk), Woodbine Formation / Woodbine Aquifer, Fredericksburg/Washita interval, 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 to Post Oak transition
    0–15 ft
  2. Austin Chalk margin
    15–60 ft
  3. Woodbine Formation
    60–250 ft
  4. Trinity (Antlers Formation)
    250–350 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 Grayson County. The exact formations and depths under a specific Sherman-area property vary — see the details above.

Explore the full Grayson County geology →

Primary Aquifer
Woodbine

Secondary: Trinity (Antlers)

Typical Well Depth
Varies by location

We estimate from nearby well records

Groundwater District
Red River GCD
Confinement
outcrop in a NE-SW band through central and eastern Grayson County; dips eastward into Fannin/Lamar/Red River counties

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

Wells around Sherman draw from the Trinity aquifer, with the Woodbine as a secondary source where present. Because the Glen Rose Limestone is absent across Grayson County, the Trinity here takes the form of the Antlers Formation — the Paluxy and Twin Mountains sands merged into one unit. Sherman has long been the county’s main groundwater-pumping center, and TWDB Report 269 documents significant Antlers cones of depression — areas where decades of concentrated pumping have drawn the water level down — around the city.

Grayson County drilling rates ($28–$40 per foot) are competitive with other North Texas counties, reflecting the manageable geology in much of the area.

Grayson County Permit Requirements

New wells in Grayson County require a pre-drilling permit through the Red River Groundwater Conservation District. The RRGCD regulates well construction, spacing, and production throughout the county. For more detail on the county permitting process, see our guide to Grayson County water well regulations.

DFW Well Service (TDLR License #61234 DKMPW) is ready to help with well drilling or pump service anywhere in the Sherman and Grayson County area. Call (940) 536-8560 for a free estimate.

Frequently Asked Questions

Which groundwater district covers Sherman?
Sherman and all of Grayson County fall within the Red River Groundwater Conservation District (RRGCD). The RRGCD requires a permit before drilling any new well in the county. DFW Well Service handles the permit application on your behalf.
How deep are water wells in the Sherman area?
There's no single typical depth around Sherman — it varies meaningfully from one property to the next, so we review the driller's logs from neighboring wells (and the area's drawdown history) before quoting a depth. Wells here may target the Woodbine, the Antlers Formation — the local Trinity unit, where the Glen Rose limestone is absent — or both. Worth knowing: Sherman has long been the county's main groundwater-pumping center, and records show significant water-level decline in both the Antlers and the Woodbine between 1945 and 1958.
Is Sherman growing, and how does that affect well demand?
Sherman has seen significant growth following major semiconductor facility announcements in the area. This has driven interest in rural and semi-rural properties outside city water service, and we've seen increased demand for new well drilling throughout Grayson County as a result.
What does well drilling cost near Sherman?
Grayson County drilling rates typically run $28–$40 per foot — among the more affordable in North Texas. Total cost depends on completion depth and the full system (casing, pump, pressure tank). We provide a free itemized written estimate after reviewing neighboring driller's logs for your parcel.
Do you handle well inspections for real estate in Sherman?
Yes. We offer well inspections and flow tests for real estate transactions throughout Grayson County. If you're purchasing rural property near Sherman, a professional well inspection before closing helps identify any issues with water quantity or quality.
How do I know if my existing well needs rehabilitation?
Signs that a well may need rehabilitation include declining water levels, reduced pump output, increased sediment in the water, or a well that runs dry during heavy-use periods. We offer well rehabilitation services including mechanical redevelopment and disinfection throughout the Sherman area.
Is the well water in Sherman salty or brackish?
Usually fresh. The Woodbine around Sherman is fresh through the band where it reaches the surface (its outcrop), and Texas Water Development Board mapping shows fresh water reaching unusually far downdip — farther down where the layer tilts deeper — staying fresh to about 1,500 feet before turning slightly to moderately saline. Iron and manganese are the routine treatment items.

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