# Water wells in Willacy County, Texas — how deep, and through what

> 255 well reports filed in Willacy County since 2001. Median depth 20 ft, water struck at 20 ft, median yield 60 gpm.

## Water wells in Willacy County, Texas

**255** well reports on file. The median well here was taken to **20 ft** and struck water at **20 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Willacy County

*Logged in Willacy County, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 32 , **Top Soil** 26 , **Clay** 22 , **Sand** 13 , **Asphalt** 13 , **Black Silt** 13 |
| 25–50 ft | **Clay** 5 , **Coarse Sand** 4 , **Sand** 2 , **Fine Sand** 2 , **Clay; Olive Yellow/Yellowish Brown, Hard.** 1 , **Clay; Olive Yellow, Soft.** 1 |
| 50–100 ft | **Sand** 7 , **Clay** 6 , **Broken Sand** 3 , **Shale** 2 , **Clay & Sand** 1 , **Sand With Shale** 1 |
| 100–200 ft | **Clay** 15 , **Sand** 9 , **Shale** 3 , **Sandy Shale** 3 , **Sand/Clay** 1 , **Brown And Grey Clay** 1 |
| 200–300 ft | **Sand** 14 , **Clay** 8 , **Shale** 2 , **Brown Clay** 2 , **Red Clay** 2 , **Sandy Clay** 2 |
| 300–500 ft | **Sand** 21 , **Clay** 12 , **Shale** 5 , **Sandy Shale** 4 , **Caliche** 3 , **Sand & Rock** 2 |
| 500–1000 ft | **Sand** 25 , **Clay** 16 , **Shale** 10 , **Sandy Shale** 6 , **Brown Sand** 4 , **Clay With Sand** 3 |
| 1000–5000 ft | **Sand** 2 , **Sands And Grey Clay** 1 , **Clay** 1 , **Shale & Rock** 1 , **Shaley Sand** 1 , **Brown Shale** 1 |

The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.

### Who drills in Willacy County

*Licensed firms in Willacy County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 28 | 20 | — | 2010–2019 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 24 | 20 | — | 2007–2019 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 23 | 25 | — | 2024–2026 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 20 | 20 | — | 2019–2021 |
| [Talon/LPE](/driller/talon-lpe.md) | 16 | 8 | — | 2010–2018 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 15 | 20 | — | 2013–2018 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 12 | 15 | — | 2004–2024 |
| [MARAL DRILLING](/driller/maral-drilling.md) | 9 | 820 | 25 | 2005–2025 |
| [Front Range Drilling, Inc.](/driller/front-range-drilling-inc.md) | 9 | 12 | — | 2014–2017 |
| [Wel-Mat Drilling LLP](/driller/wel-mat-drilling-llp.md) | 9 | 27 | — | 2003–2015 |
| [BELL WATER WELL SERVICE](/driller/bell-water-well-service.md) | 8 | 970 | 60 | 2007–2023 |
| [Environmental FX](/driller/environmental-fx.md) | 8 | — | — | 2007 |
| [ETTL Engineers & Consultants Inc.](/driller/ettl-engineers-consultants-inc.md) | 8 | 37 | — | 2003 |
| [Miller Water Wells](/driller/miller-water-wells.md) | 7 | 35 | — | 2008–2018 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 7 | 15 | — | 2015 |
| [PAGE WATER WELL](/driller/page-water-well.md) | 6 | 865 | 100 | 2004–2011 |
| [Jones Environmental Drilling, Inc.](/driller/jones-environmental-drilling-inc.md) | 6 | — | — | 2007 |
| [dba Universal Drilling Services](/driller/dba-universal-drilling-services.md) | 6 | 25 | — | 2002–2003 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 4 | 1,054 | 200 | 2004–2024 |
| [Cinco E Inc.](/driller/cinco-e-inc.md) | 4 | 905 | 17 | 2015–2016 |
| [Pursley Drilling Ltd.](/driller/pursley-drilling-ltd.md) | 4 | 850 | 40 | 2005–2009 |
| [R. Pizano Water Well Service](/driller/r-pizano-water-well-service.md) | 3 | 50 | 30 | 2003–2022 |
| [Killinger's Water Well Drilling](/driller/killinger-s-water-well-drilling.md) | 2 | 800 | 50 | 2007–2025 |
| [PAGE WATERWELL](/driller/page-waterwell.md) | 2 | 790 | 100 | 2008–2009 |
| [R. Pizano Waterwell Service](/driller/r-pizano-waterwell-service.md) | 2 | 40 | 50 | 2008 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 99 | 38.8% | 20 |
| Environmental Soil Boring | 91 | 35.7% | 15 |
| Stock | 19 | 7.5% | 840 |
| Domestic | 18 | 7.1% | 800 |
| Rig Supply | 9 | 3.5% | 790 |
| Irrigation | 8 | 3.1% | 47 |
| Test Well | 6 | 2.4% | 10 |
| Public Supply | 4 | 1.6% | 1,200 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 68 | 54 | 25 |
| 2010s | 136 | 20 | 20 |
| 2020s | 51 | 20 | 10 |

### The deepest reports on file

*Deepest reports in Willacy County. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 491671 | 2018 | 1,420 | 20 | 200 | Stock |
| 712805 | 2024 | 1,220 | — | — | Public Supply |
| 429379 | 2016 | 1,200 | 50 | 700 | Public Supply |
| 425397 | 2016 | 1,200 | 29 | — | Public Supply |
| 317493 | 2013 | 1,095 | 30 | — | Irrigation |
| 174280 | 2004 | 1,054 | 15 | 900 | Public Supply |
| 487498 | 2018 | 1,022 | 33 | 70 | Domestic |
| 372653 | 2014 | 1,010 | 75 | — | Irrigation |
| 194364 | 2009 | 990 | 30 | 40 | Stock |
| 652271 | 2023 | 970 | 61 | — | Stock |

Every figure on this site is a **median**, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.

### Drilling a well in Willacy County?

Depth is only half the quote. What it costs depends on the rock, the casing and the pump. Tell us where and we pass the request to licensed Texas drillers.

We are nobody's agent and have no arrangement with any firm today. [What we do with this](/privacy.md).

### Counties with a comparable number of reports

- [Morris](/county/morris.md)
- [Camp](/county/camp.md)
- [Culberson](/county/culberson.md)
- [Stephens](/county/stephens.md)
- [Baylor](/county/baylor.md)
- [Presidio](/county/presidio.md)
- [Red River](/county/red-river.md)
- [Archer](/county/archer.md)
- [Kent](/county/kent.md)
- [Zapata](/county/zapata.md)
- [Cottle](/county/cottle.md)
- [Rains](/county/rains.md)
- [Foard](/county/foard.md)

A sliding window, not a ranking. [Every county](/county.md).

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Página: https://texas-water-wells.pages.dev/county/willacy/
Fonte: Texas Submitted Driller's Report Database — Texas Water Development Board, from reports filed with the Texas Department of Licensing and Regulation
Recolha: 2026-08-23