# Well grid 78-16, Texas — Karnes, Live Oak — how deep, and through what

> 146 well reports in Texas state well grid 78-16, covering Karnes, Live Oak, Atascosa. Median depth 380 ft.

## Texas well grid 78-16

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Karnes County](/county/karnes.md) and [Live Oak County](/county/live-oak.md). **146** reports, median depth **380 ft**.

### What you will drill through in grid 78-16

*Logged in state well grid 78-16, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Caliche** 18 , **Silty Clay � 10Yr 2/2 (Dark Brown), Soft, Moist, Medium Plas** 17 , **Shale** 15 , **Silty Clay � 10Yr 2/2 (Dark Brown), Soft, Dry, Medium Plasti** 10 , **Marly Mudstone -, Brittle, Brown, Dry, Low Plasticity** 10 , **Topsoil** 9 |
| 25–50 ft | **Clay** 4 , **Tan Clay** 2 , **Sand & Shale** 1 , **Shale** 1 , **Sandy** 1 , **Red Clay** 1 |
| 50–100 ft | **Shale** 5 , **Clay** 4 , **Sand** 2 , **Gray Clay** 2 , **Shale / Sand** 1 , **Sandy/Shale** 1 |
| 100–200 ft | **Sand** 12 , **Shale** 8 , **Clay** 6 , **Sandy Shale** 4 , **Sand And Shale** 4 , **Clay & Shale** 3 |
| 200–300 ft | **Sand** 16 , **Shale** 8 , **Rock** 7 , **Clay** 8 , **Sand And Few Streaks Of Shale** 3 , **Layered Sand & Shale** 2 |
| 300–500 ft | **Sand** 13 , **Shale** 13 , **Clay** 8 , **Rock** 4 , **Sand & Shale** 4 , **Sand And Shale** 4 |
| 500–1000 ft | **Sand** 15 , **Clay** 6 , **Shale** 5 , **Rock** 2 , **Sandy Clay Mix** 5 , **Sandy Shale** 1 |
| 1000–5000 ft | **Shale** 7 , **Sand** 7 , **Carrizo Sand** 4 , **Clay** 2 , **Sandy Shale** 2 , **Sandy** 1 |

### Who drills here

*Licensed firms in state well grid 78-16, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 31 | 19 | — | 2015–2018 |
| [M & C WATERWELL DRILLING](/driller/m-c-waterwell-drilling.md) | 19 | 340 | 30 | 2002–2015 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 16 | — | 80 | 2010–2014 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 14 | 500 | 25 | 2009–2023 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 11 | 520 | 50 | 2018–2025 |
| [Pinnergy, LTD](/driller/pinnergy-ltd.md) | 10 | 450 | 70 | 2011–2012 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 5 | 885 | 300 | 2018–2026 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 5 | 4,421 | 600 | 2014–2021 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 5 | 15 | — | 2019 |
| [Evans Drilling](/driller/evans-drilling.md) | 4 | 2,850 | 300 | 2009–2011 |
| [Moy's Water Well Services](/driller/moy-s-water-well-services.md) | 3 | 327 | 25 | 2020–2023 |
| TJ and TB Drilling | 3 | 400 | 40 | 2015–2018 |
| [Talon/LPE](/driller/talon-lpe.md) | 3 | 100 | — | 2013 |
| [Edward Pawlik & Son Well Service](/driller/edward-pawlik-son-well-service.md) | 2 | 400 | 150 | 2008–2009 |
| [JANYSEK WATER WELL SERVICE](/driller/janysek-water-well-service.md) | 1 | 740 | 30 | 2021 |
| [Moy's Water Well Drilling & Services of Texas](/driller/moy-s-water-well-drilling-services-of-texas.md) | 1 | 4,650 | 1,900 | 2020 |
| [Leon Davis Water Well](/driller/leon-davis-water-well.md) | 1 | 391 | 40 | 2015 |
| [TJ & TB Drilling Inc](/driller/tj-tb-drilling-inc.md) | 1 | 335 | 15 | 2015 |
| [J B Drilling](/driller/j-b-drilling.md) | 1 | 560 | 300 | 2015 |
| Thomas Moy adn Son's | 1 | 480 | 25 | 2013 |
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 1 | 200 | 80 | 2013 |
| [J & S Water Wells](/driller/j-s-water-wells.md) | 1 | 580 | — | 2012 |
| [PAGE WATER WELL](/driller/page-water-well.md) | 1 | 660 | 35 | 2010 |
| [Water Well Services, Inc.](/driller/water-well-services-inc.md) | 1 | — | 350 | 2010 |
| [Thomas Moy & Sons](/driller/thomas-moy-sons.md) | 1 | 490 | 400 | 2007 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Rig Supply | 36 | 24.7% | 460 |
| Domestic | 28 | 19.2% | 440 |
| Stock | 25 | 17.1% | 340 |
| Environmental Soil Boring | 22 | 15.1% | 15 |
| Monitor | 17 | 11.6% | 20 |
| Fracking Supply | 10 | 6.8% | 1,020 |
| Industrial | 7 | 4.8% | 1,200 |
| Irrigation | 1 | 0.7% | 490 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 18 | 405 | 120 |
| 2010s | 111 | 300 | 148 |
| 2020s | 17 | 520 | 176 |

### The deepest reports on file

*Deepest reports in state well grid 78-16. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 574590 | 2021 | 4,855 | 200 | 1,100 | Fracking Supply |
| 291088 | 2011 | 4,700 | 87 | 300 | Rig Supply |
| 274404 | 2011 | 4,700 | 250 | — | Rig Supply |
| 551394 | 2020 | 4,650 | 139 | 1,900 | Industrial |
| 510242 | 2019 | 4,421 | 177 | 600 | Industrial |
| 207436 | 2010 | 2,850 | 63 | 500 | Rig Supply |
| 502422 | 2019 | 1,267 | 91 | 400 | Fracking Supply |
| 519084 | 2019 | 1,200 | — | 250 | Industrial |
| 207420 | 2009 | 1,105 | 82 | 75 | Rig Supply |
| 206975 | 2009 | 1,095 | 250 | — | Rig Supply |

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 78-16?

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 [Karnes County](/county/karnes.md), [Live Oak County](/county/live-oak.md), [Atascosa County](/county/atascosa.md).

### Grids with a comparable number of reports

- [40-01](/area/40-01.md)
- [44-63](/area/44-63.md)
- [64-13](/area/64-13.md)
- [34-22](/area/34-22.md)
- [37-54](/area/37-54.md)
- [57-37](/area/57-37.md)
- [59-24](/area/59-24.md)
- [83-43](/area/83-43.md)
- [88-63](/area/88-63.md)
- [03-45](/area/03-45.md)
- [06-56](/area/06-56.md)
- [18-34](/area/18-34.md)
- [44-62](/area/44-62.md)

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Página: https://texas-water-wells.pages.dev/area/78-16/
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