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

> 904 well reports filed in Coryell County since 2001. Median depth 400 ft, water struck at 277 ft, median yield 20 gpm.

## Water wells in Coryell County, Texas

**904** well reports on file. The median well here was taken to **400 ft** and struck water at **277 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Coryell County

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

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Overburden** 202 , **Dark Brown Clay** 133 , **Gray Limestone** 127 , **Topsoil** 99 , **Tan Limestone** 44 , **Gray Shale** 59 |
| 25–50 ft | **Gray Limestone** 58 , **Gray Shale** 27 , **Grey Shale** 16 , **Gray Lime** 15 , **Paluxy Sand** 13 , **Dark Gray Clay And Gray Limestone** 10 |
| 50–100 ft | **Gray Limestone** 28 , **Gray Shale** 20 , **Gray Lime** 15 , **Sandy Shale** 13 , **Paluxy Sand** 7 , **Paluxy** 5 |
| 100–200 ft | **Gray Limestone** 18 , **Sandy Shale** 15 , **Gray Shale** 12 , **Shale** 10 , **Paluxy Sand** 8 , **Grey Shale** 8 |
| 200–300 ft | **Sandy Shale** 25 , **Gray Limestone** 19 , **Dark Shale** 15 , **Gray Sandstone** 9 , **Tan Limestone** 13 , **Gray Shale** 12 |
| 300–500 ft | **Red Clay** 98 , **Red Sandstone** 49 , **Sand** 40 , **Brown Lime** 41 , **Brown Limestone** 33 , **Red Shale** 23 |
| 500–1000 ft | **Red Clay** 38 , **Sand** 23 , **Red Shale** 24 , **Red Sandstone** 22 , **Yellow Clay** 19 , **Yellow Shale** 19 |
| 1000–5000 ft | **Yellow Limestone** 3 , **Yellow Clay** 2 , **Sandy Clay** 1 , **Red Sandstone With Sand Stringers** 1 , **Sand, Gravel, Sandy Blue Clay** 1 , **Yellow Shale, Clay** 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 Coryell County

*Licensed firms in Coryell County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [White Drilling Company, Inc.](/driller/white-drilling-company-inc.md) | 146 | 22 | — | 2016–2025 |
| [Lucy Creek Water Well Service](/driller/lucy-creek-water-well-service.md) | 74 | 510 | 20 | 2019–2026 |
| [HARRISON DRILLING](/driller/harrison-drilling.md) | 70 | 495 | 20 | 2002–2018 |
| [Tom Lovelace Water Well Service](/driller/tom-lovelace-water-well-service.md) | 50 | 580 | 33 | 2003–2026 |
| [David Cowen](/driller/david-cowen.md) | 39 | 420 | 12 | 2004–2026 |
| [HARRISON WELL SERVICE, INC.](/driller/harrison-well-service-inc.md) | 33 | 535 | 17 | 2006–2015 |
| [Dalton Drilling & Service](/driller/dalton-drilling-service.md) | 32 | 500 | 31 | 2001–2024 |
| [Jones Drilling Inc.](/driller/jones-drilling-inc.md) | 26 | 560 | 20 | 2001–2016 |
| [GAP DRILLING & SERIVICE](/driller/gap-drilling-serivice.md) | 25 | 560 | 7 | 2021–2026 |
| [ALDERSON WATER WELL RESCUE, LLC](/driller/alderson-water-well-rescue-llc.md) | 21 | 365 | 15 | 2020–2023 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 21 | 14 | — | 2007–2016 |
| [Dynamic Water Well Drilling, LLC](/driller/dynamic-water-well-drilling-llc.md) | 20 | 400 | 10 | 2022–2025 |
| [Apex Drilling, Inc.](/driller/apex-drilling-inc.md) | 18 | 385 | 20 | 2006–2025 |
| [Smart Drilling & Supply Co. Inc.](/driller/smart-drilling-supply-co-inc.md) | 18 | 404 | 30 | 2003–2017 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 18 | 46 | — | 2006–2013 |
| [Ashley Drilling & Well Service](/driller/ashley-drilling-well-service.md) | 16 | 500 | 15 | 2023–2026 |
| [WEST Drilling](/driller/west-drilling.md) | 16 | 13 | — | 2020 |
| [SCI](/driller/sci.md) | 16 | 25 | — | 2008–2009 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 15 | 20 | — | 2018–2021 |
| [Bee Cave Drilling, Inc.](/driller/bee-cave-drilling-inc.md) | 14 | 490 | 15 | 2003–2025 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 13 | 15 | — | 2024–2025 |
| [Associated Well Services, Inc.](/driller/associated-well-services-inc.md) | 13 | 846 | 60 | 2016–2022 |
| [Dale Faught, Jr.](/driller/dale-faught-jr.md) | 12 | 610 | 20 | 2004–2007 |
| Faught Waterwell Drilling | 12 | 290 | 10 | 2008 |
| [DIXIE DRILLING](/driller/dixie-drilling.md) | 11 | 15 | — | 2003–2005 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 487 | 53.9% | 490 |
| Injection | 125 | 13.8% | 21 |
| Monitor | 123 | 13.6% | 25 |
| Stock | 74 | 8.2% | 525 |
| Environmental Soil Boring | 55 | 6.1% | 14 |
| Closed-Loop Geothermal | 9 | 1.0% | 250 |
| Other | 9 | 1.0% | 15 |
| Test Well | 9 | 1.0% | 20 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 260 | 400 | 295 |
| 2010s | 231 | 450 | 338 |
| 2020s | 413 | 373 | 36 |

### The deepest reports on file

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

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 664781 | 2024 | 4,802 | — | — | Domestic |
| 418258 | 2015 | 1,170 | — | 100 | Public Supply |
| 534594 | 2020 | 1,143 | 700 | 100 | Stock |
| 562122 | 2020 | 1,142 | 780 | — | Domestic |
| 616746 | 2022 | 1,060 | 714 | 18 | Domestic |
| 616744 | 2022 | 1,060 | 722 | 18 | Domestic |
| 451365 | 2016 | 1,040 | 702 | 60 | Domestic |
| 392201 | 2015 | 1,040 | 712 | 15 | Irrigation |
| 390922 | 2015 | 1,040 | 760 | — | Irrigation |
| 181864 | 2005 | 1,035 | 560 | 30 | Domestic |

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 Coryell 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

- [Pecos](/county/pecos.md)
- [San Augustine](/county/san-augustine.md)
- [Lampasas](/county/lampasas.md)
- [McCulloch](/county/mcculloch.md)
- [Brooks](/county/brooks.md)
- [San Saba](/county/san-saba.md)
- [Lipscomb](/county/lipscomb.md)
- [Young](/county/young.md)
- [Brewster](/county/brewster.md)
- [Hill](/county/hill.md)
- [Menard](/county/menard.md)
- [Knox](/county/knox.md)
- [Wilbarger](/county/wilbarger.md)

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

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