# Well grid 78-15, Texas — Atascosa, Karnes — how deep, and through what

> 121 well reports in Texas state well grid 78-15, covering Atascosa, Karnes. Median depth 80 ft.

## Texas well grid 78-15

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Atascosa County](/county/atascosa.md) and [Karnes County](/county/karnes.md). **121** reports, median depth **80 ft**.

### What you will drill through in grid 78-15

*Logged in state well grid 78-15, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 13 , **Silty Clay** 6 , **Top Soil** 9 , **Shale** 7 , **Tan Clay** 9 , **Silty, Clayey, Sand** 9 |
| 25–50 ft | **Sand** 6 , **Poorly Graded Sand** 4 , **Shale** 4 , **Clay** 3 , **Gray Clay** 3 , **Rock** 1 |
| 50–100 ft | **Rock** 4 , **Sand** 5 , **Shale** 4 , **Gray Clay** 4 , **Lignite And Blue Clay** 2 , **Gravel** 1 |
| 100–200 ft | **Shale** 11 , **Sand** 10 , **Rock** 7 , **Sand And Shale** 3 , **Clay** 4 , **Shale Streaks Sand** 2 |
| 200–300 ft | **Sand** 10 , **Shale** 9 , **Rock** 5 , **Gray Clay** 5 , **Clay** 3 , **Sand Streaks Shale** 3 |
| 300–500 ft | **Sand** 12 , **Shale** 5 , **Clay** 5 , **Rock** 3 , **Shale & Sand** 2 , **Sand / Td** 2 |
| 500–1000 ft | **Sand** 5 , **Shale** 4 , **Gray Clay** 2 , **Sand Streaks Shale** 2 , **Silty Gray Sand** 1 , **Sandy Shale Mix** 2 |
| 1000–5000 ft | **Sand** 4 , **Shale** 2 , **Carrizo Sand** 1 , **Shale/Limestone** 1 , **Sand/Shale** 1 , **Sandy Shale Mix** 1 |

### Who drills here

*Licensed firms in state well grid 78-15, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 32 | 20 | — | 2007–2016 |
| [Geoprojects International, Inc.](/driller/geoprojects-international-inc.md) | 22 | 50 | — | 2004–2011 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 10 | 480 | 50 | 2019–2026 |
| [M&C WATERWELL DRILLING](/driller/m-c-waterwell-drilling.md) | 7 | 355 | 60 | 2009–2016 |
| [WEST Drilling](/driller/west-drilling.md) | 4 | 15 | — | 2019 |
| [Evans Drilling](/driller/evans-drilling.md) | 4 | 640 | 250 | 2010–2011 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 3 | 563 | 875 | 2013–2023 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 3 | 360 | 45 | 2016–2022 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 3 | 22 | — | 2019 |
| [Water Well Services, Inc.](/driller/water-well-services-inc.md) | 3 | 3,800 | 1,200 | 2013–2014 |
| [EDWARD PAWLIK & SON W S](/driller/edward-pawlik-son-w-s.md) | 3 | 585 | 150 | 2014 |
| [Unison Drilling Inc](/driller/unison-drilling-inc.md) | 3 | 663 | 150 | 2011–2012 |
| [Pinnergy, LTD](/driller/pinnergy-ltd.md) | 3 | 380 | 50 | 2011–2012 |
| [Moy's Water Well Drilling & Services of Texas](/driller/moy-s-water-well-drilling-services-of-texas.md) | 2 | 1,000 | 60 | 2019–2021 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 2 | 74 | — | 2016–2019 |
| [McKinley Drilling](/driller/mckinley-drilling.md) | 2 | 651 | 50 | 2013 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 2 | — | 60 | 2012 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 2 | 75 | — | 2012 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 1 | 600 | 30 | 2024 |
| [Talon/LPE](/driller/talon-lpe.md) | 1 | 30 | — | 2020 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 1 | 70 | — | 2019 |
| [Weisinger Incorporated](/driller/weisinger-incorporated.md) | 1 | 4,400 | 648 | 2017 |
| [B&K Water Well Drilling](/driller/b-k-water-well-drilling.md) | 1 | 520 | 20 | 2016 |
| [Thomas Moy & Sons](/driller/thomas-moy-sons.md) | 1 | 400 | 4 | 2003 |
| Lanceco Drilling Services | 1 | — | — | 2010 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 36 | 29.8% | 58 |
| Environmental Soil Boring | 31 | 25.6% | 20 |
| Domestic | 18 | 14.9% | 480 |
| Rig Supply | 14 | 11.6% | 640 |
| Stock | 12 | 9.9% | 360 |
| Industrial | 5 | 4.1% | 715 |
| Fracking Supply | 2 | 1.7% | 4,847 |
| Unknown | 1 | 0.8% | 440 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 32 | 58 | 84 |
| 2010s | 74 | 74 | 100 |
| 2020s | 15 | 440 | 151 |

### The deepest reports on file

*Deepest reports in state well grid 78-15. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 632883 | 2023 | 4,847 | 147 | 875 | Fracking Supply |
| 457844 | 2017 | 4,400 | 201 | 648 | Public Supply |
| 387137 | 2014 | 3,800 | 44 | 1,200 | Fracking Supply |
| 225266 | 2010 | 3,525 | 162 | 250 | Rig Supply |
| 510003 | 2019 | 1,000 | 260 | 60 | Industrial |
| 599760 | 2022 | 840 | 213 | 8 | Domestic |
| 164562 | 2004 | 820 | 145 | 60 | Domestic |
| 321428 | 2013 | 715 | 154 | — | Industrial |
| 260657 | 2011 | 663 | 80 | 150 | Rig Supply |
| 354087 | 2013 | 651 | 72 | 50 | Industrial |

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 78-15?

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 [Atascosa County](/county/atascosa.md), [Karnes County](/county/karnes.md).

### Grids with a comparable number of reports

- [20-54](/area/20-54.md)
- [27-32](/area/27-32.md)
- [34-43](/area/34-43.md)
- [41-51](/area/41-51.md)
- [59-42](/area/59-42.md)
- [61-61](/area/61-61.md)
- [67-13](/area/67-13.md)
- [83-18](/area/83-18.md)
- [02-58](/area/02-58.md)
- [06-18](/area/06-18.md)
- [29-13](/area/29-13.md)
- [33-28](/area/33-28.md)
- [56-13](/area/56-13.md)

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Página: https://texas-water-wells.pages.dev/area/78-15/
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