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

> 408 well reports filed in McMullen County since 2001. Median depth 255 ft, water struck at 129 ft, median yield 120 gpm.

## Water wells in McMullen County, Texas

**408** well reports on file. The median well here was taken to **255 ft** and struck water at **129 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in McMullen County

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

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Top Soil** 79 , **Surface** 54 , **Tan Clay** 36 , **Clay** 34 , **Caliche** 30 , **Topsoil** 25 |
| 25–50 ft | **Tan Clay** 10 , **Gray Clay** 9 , **Shale** 6 , **Silty Clay; Brown** 6 , **Clay; Brown** 5 , **Brown Sand** 4 |
| 50–100 ft | **Shale** 11 , **Tan Clay** 6 , **Gray Clay** 5 , **Tan Sand** 4 , **Clay** 4 , **Red Clay** 4 |
| 100–200 ft | **Shale** 19 , **Tan Clay** 11 , **Sand** 9 , **Gray Clay** 7 , **Sandy Clay** 6 , **Gray Sand** 6 |
| 200–300 ft | **Tan Clay** 9 , **Gray Clay** 6 , **Shale** 6 , **Sand** 4 , **Sandy Shale** 4 , **Tan Sand** 3 |
| 300–500 ft | **Shale** 20 , **Sand** 14 , **Tan Clay** 12 , **Rock** 4 , **Clay** 3 , **Sandy Shale** 4 |
| 500–1000 ft | **Shale** 42 , **Sand** 20 , **Sandy Shale** 15 , **Sand & Shale** 13 , **Gray Clay** 6 , **Grey Clay** 2 |
| 1000–5000 ft | **Shale** 85 , **Sand** 81 , **Sandy Shale** 41 , **Carrizo Sand** 61 , **Gray Shale** 30 , **Sand & Shale** 23 |

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 McMullen County

*Licensed firms in McMullen County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Water Well Services, Inc.](/driller/water-well-services-inc.md) | 69 | 4,270 | 300 | 2009–2017 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 62 | 15 | — | 2011–2024 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 38 | 15 | — | 2022–2025 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 24 | 3,975 | 800 | 2011–2025 |
| [EnviroCore, Inc.](/driller/envirocore-inc.md) | 23 | 46 | — | 2023–2026 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 19 | 4,013 | 1,350 | 2010–2017 |
| [Edward Pawlik & Son Well Service](/driller/edward-pawlik-son-well-service.md) | 19 | 240 | 14 | 2004–2009 |
| [Mhc x-ploration corp](/driller/mhc-x-ploration-corp.md) | 13 | 93 | — | 2016–2024 |
| Lighthouse Environmental | 12 | 8 | — | 2014 |
| [McKinley Drilling](/driller/mckinley-drilling.md) | 9 | 4,100 | 650 | 2009–2025 |
| Danny J. Stricker Water Well Drilling | 9 | 4,500 | 200 | 2009–2010 |
| [Moy's Water Well Drilling & Services of Texas](/driller/moy-s-water-well-drilling-services-of-texas.md) | 8 | 4,020 | 300 | 2019–2025 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 8 | 5 | — | 2021 |
| [Unison Drilling Inc](/driller/unison-drilling-inc.md) | 8 | 3,300 | 250 | 2011–2018 |
| [PAWLIK & SON W.S.](/driller/pawlik-son-w-s.md) | 7 | 340 | 20 | 2015–2017 |
| James Pawlik Water Well Ser. Inc. | 7 | 80 | 6 | 2009–2010 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 6 | 720 | 100 | 2010–2026 |
| [James Pawlik Water Well Service, Inc.](/driller/james-pawlik-water-well-service-inc.md) | 6 | 680 | 7 | 2024–2025 |
| [EDWARD PAWLIK & SON W S](/driller/edward-pawlik-son-w-s.md) | 6 | 360 | 12 | 2010–2014 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 5 | 4,585 | 800 | 2020–2024 |
| [Evans Drilling](/driller/evans-drilling.md) | 5 | 4,127 | 300 | 2010–2011 |
| [White Drilling Company, Inc.](/driller/white-drilling-company-inc.md) | 4 | 30 | — | 2016 |
| [James Pawlik Water Wll Service, Inc.](/driller/james-pawlik-water-wll-service-inc.md) | 3 | 580 | 10 | 2015–2020 |
| [Moy's Water Well Services](/driller/moy-s-water-well-services.md) | 3 | 185 | 10 | 2018–2019 |
| [Richardson Water Well Drilling](/driller/richardson-water-well-drilling.md) | 2 | 4,718 | — | 2015–2021 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 98 | 24.0% | 15 |
| Fracking Supply | 70 | 17.2% | 4,100 |
| Rig Supply | 68 | 16.7% | 4,127 |
| Monitor | 63 | 15.4% | 30 |
| Domestic | 58 | 14.2% | 370 |
| Stock | 41 | 10.0% | 640 |
| Industrial | 5 | 1.2% | 3,130 |
| Irrigation | 5 | 1.2% | 4,550 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 38 | 250 | 101 |
| 2010s | 254 | 3,347 | 120 |
| 2020s | 116 | 25 | 198 |

### The deepest reports on file

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

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 273891 | 2011 | 4,980 | 70 | — | Fracking Supply |
| 318021 | 2013 | 4,975 | 70 | — | Fracking Supply |
| 216083 | 2010 | 4,974 | 103 | — | Rig Supply |
| 365686 | 2014 | 4,970 | 256 | — | Irrigation |
| 296817 | 2012 | 4,965 | 100 | — | Irrigation |
| 259347 | 2011 | 4,955 | 99 | 200 | Rig Supply |
| 385024 | 2014 | 4,950 | 194 | 1,000 | Fracking Supply |
| 283948 | 2012 | 4,950 | 105 | — | Fracking Supply |
| 256620 | 2011 | 4,950 | 90 | — | Fracking Supply |
| 204634 | 2009 | 4,940 | — | — | Rig Supply |

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 McMullen 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

- [Marion](/county/marion.md)
- [Kinney](/county/kinney.md)
- [Sabine](/county/sabine.md)
- [Borden](/county/borden.md)
- [Trinity](/county/trinity.md)
- [Sterling](/county/sterling.md)
- [Lamar](/county/lamar.md)
- [Jeff Davis](/county/jeff-davis.md)
- [Oldham](/county/oldham.md)
- [Falls](/county/falls.md)
- [Stonewall](/county/stonewall.md)
- [Motley](/county/motley.md)
- [Briscoe](/county/briscoe.md)

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

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Página: https://texas-water-wells.pages.dev/county/mcmullen/
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