# Well grid 68-40, Texas — Guadalupe, Wilson — how deep, and through what

> 328 well reports in Texas state well grid 68-40, covering Guadalupe, Wilson, Medina. Median depth 285 ft.

## Texas well grid 68-40

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Guadalupe County](/county/guadalupe.md) and [Wilson County](/county/wilson.md). **328** reports, median depth **285 ft**.

### What you will drill through in grid 68-40

*Logged in state well grid 68-40, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Top Soil** 149 , **Clay** 59 , **Sand** 59 , **Red Clay** 42 , **Sandy Clay** 29 , **Rock** 23 |
| 25–50 ft | **Sand** 35 , **Blue Shale** 33 , **Rock** 24 , **Clay** 18 , **Shale** 19 , **Blue Clay** 14 |
| 50–100 ft | **Sand** 126 , **Rock** 94 , **Shale** 98 , **Blue Shale** 49 , **Clay** 24 , **Blue Clay** 24 |
| 100–200 ft | **Sand** 201 , **Shale** 170 , **Rock** 140 , **Sandy Shale** 22 , **Clay** 24 , **Sand Streaks** 14 |
| 200–300 ft | **Sand** 139 , **Shale** 111 , **Rock** 94 , **Clay** 22 , **Sandy Shale** 19 , **Sand & Shale Streaks** 10 |
| 300–500 ft | **Sand** 37 , **Shale** 34 , **Rock** 24 , **Clay** 15 , **Shale (Td)** 4 , **Sandy Shale** 4 |
| 500–1000 ft | **Sand** 1 , **Shale** 1 , **Clay** 1 |

### Who drills here

*Licensed firms in state well grid 68-40, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [HERBOLD DRILLING](/driller/herbold-drilling.md) | 117 | 280 | 20 | 2014–2026 |
| [HERBOLD BROTHERS](/driller/herbold-brothers.md) | 93 | 300 | 20 | 2003–2015 |
| [Deharde Water Well Service](/driller/deharde-water-well-service.md) | 53 | 283 | 45 | 2004–2025 |
| [STEVENS DRILLING & WATER WELL SERVICE](/driller/stevens-drilling-water-well-service.md) | 24 | 285 | 30 | 2015–2025 |
| [Alamo1 Drilling](/driller/alamo1-drilling.md) | 5 | 25 | — | 2025 |
| HERBOLD BROTHERS DRILLING | 5 | 300 | 20 | 2002–2014 |
| [Stevens Drilling and Water Well Service](/driller/stevens-drilling-and-water-well-service.md) | 4 | 310 | 35 | 2015–2025 |
| [TJ & TB Drilling Inc](/driller/tj-tb-drilling-inc.md) | 3 | 250 | 30 | 2013–2021 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 2 | 235 | 50 | 2024 |
| HERBOLD BROS. | 2 | 360 | 20 | 2002 |
| HERBOLD BROS. DRILLING | 2 | 260 | 35 | 2002 |
| [McKinley Drilling](/driller/mckinley-drilling.md) | 1 | 692 | 200 | 2026 |
| [Bluebonnet Water Wells](/driller/bluebonnet-water-wells.md) | 1 | 325 | 40 | 2025 |
| [Evans Drilling](/driller/evans-drilling.md) | 1 | 250 | 40 | 2022 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 1 | 400 | — | 2015 |
| HERBOD BROHERS | 1 | — | 15 | 2013 |
| [Kutscher Drilling](/driller/kutscher-drilling.md) | 1 | 325 | 35 | 2012 |
| PKF Well Service | 1 | 245 | 20 | 2011 |
| [Lone Star Drilling & Pump Service](/driller/lone-star-drilling-pump-service.md) | 1 | 311 | 25 | 2006 |
| Deharde Wate Well Service | 1 | 190 | — | 2005 |
| [J B Drilling](/driller/j-b-drilling.md) | 1 | 170 | 50 | 2008 |
| Deharde Water Wel Service | 1 | 274 | 100 | 2008 |
| HERBOLD BRTOTHERS | 1 | — | 30 | 2007 |
| HERBOLD BROTHES | 1 | 115 | 20 | 2006 |
| [Armadigger, Inc.](/driller/armadigger-inc.md) | 1 | — | — | 2006 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 303 | 92.4% | 290 |
| Stock | 10 | 3.0% | 245 |
| Irrigation | 9 | 2.7% | 320 |
| Environmental Soil Boring | 5 | 1.5% | 25 |
| Industrial | 1 | 0.3% | — |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 85 | 283 | 80 |
| 2010s | 134 | 300 | 90 |
| 2020s | 109 | 290 | 76 |

### The deepest reports on file

*Deepest reports in state well grid 68-40. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 720150 | 2026 | 692 | 197 | 200 | Irrigation |
| 509345 | 2019 | 550 | 185 | 40 | Domestic |
| 492878 | 2018 | 540 | 195 | 40 | Domestic |
| 472508 | 2018 | 465 | — | — | Irrigation |
| 401745 | 2015 | 464 | 160 | 60 | Stock |
| 619919 | 2022 | 460 | 140 | 60 | Stock |
| 279921 | 2011 | 430 | 120 | 20 | Domestic |
| 617414 | 2022 | 420 | 65 | — | Domestic |
| 505092 | 2019 | 420 | 150 | 16 | Domestic |
| 269357 | 2011 | 420 | 45 | 100 | Stock |

Every figure here comes from a report a licensed driller filed on the day the work ended — sometimes decades ago. It describes what was found then, not what a well yields today, and it is not a statement that any well is sound, potable or still in use.

### Drilling a well near grid 68-40?

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).

This grid falls in [Guadalupe County](/county/guadalupe.md), [Wilson County](/county/wilson.md), [Medina County](/county/medina.md), [Bexar County](/county/bexar.md).

### Grids with a comparable number of reports

- [66-24](/area/66-24.md)
- [32-41](/area/32-41.md)
- [65-43](/area/65-43.md)
- [28-53](/area/28-53.md)
- [35-61](/area/35-61.md)
- [80-10](/area/80-10.md)
- [31-56](/area/31-56.md)
- [27-08](/area/27-08.md)
- [29-33](/area/29-33.md)
- [59-36](/area/59-36.md)
- [64-08](/area/64-08.md)
- [32-42](/area/32-42.md)
- [11-51](/area/11-51.md)

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Página: https://texas-water-wells.pages.dev/area/68-40/
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