# Well grid 57-19, Texas — Llano — how deep, and through what

> 432 well reports in Texas state well grid 57-19, covering Llano. Median depth 180 ft.

## Texas well grid 57-19

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Llano County](/county/llano.md). **432** reports, median depth **180 ft**.

### What you will drill through in grid 57-19

*Logged in state well grid 57-19, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Topsoil** 327 , **Red Sandy Clay** 59 , **Red Granite** 46 , **Red Granite Gravel** 43 , **Metamorphic Gravel & Clay** 41 , **Brown Clay & Gravel** 40 |
| 25–50 ft | **Gray Granite** 42 , **Red Granite** 20 , **Red & Black Metamorphic** 15 , **Black Metamorphic** 14 , **Grey Granite** 8 , **Black & White Metamorphic** 6 |
| 50–100 ft | **Red Granite** 14 , **Gray Granite** 12 , **Black Metamorphic** 10 , **Black Granite** 8 , **Red & Black Metamorphic** 7 , **Red Metamorphic** 5 |
| 100–200 ft | **Black Metamorphic** 9 , **Red Granite** 8 , **Red Metamorphic** 8 , **Black Granite** 7 , **Red & Black Metamorphic** 5 , **Gray Granite** 3 |
| 200–300 ft | **Black Granite** 3 , **Water 1 Gpm** 2 , **Grey Granite** 2 , **Black Schist W/Marble Streaks** 2 , **Gray Sandstone** 2 , **Pink Granite** 2 |
| 300–500 ft | **Red Sandstone** 1 , **Water 4 Gpm** 1 , **Light Brown Sandstone (Lower Hickory)** 1 , **Black & White Metamorphic** 1 , **Black Schist** 1 , **Red Sandstone (Hickory)** 1 |

### Who drills here

*Licensed firms in state well grid 57-19, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Virdell Drilling Inc.](/driller/virdell-drilling-inc.md) | 170 | 160 | 8 | 2001–2019 |
| [Walden Drilling Inc](/driller/walden-drilling-inc.md) | 106 | 200 | 5 | 2011–2025 |
| [Magill Drilling & Water Well Service, LLC](/driller/magill-drilling-water-well-service-llc.md) | 78 | 165 | 10 | 2017–2026 |
| [Highland Drilling Inc.](/driller/highland-drilling-inc.md) | 20 | 180 | 6 | 2003–2012 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 11 | 30 | — | 2006–2025 |
| [Bee Cave Drilling, Inc.](/driller/bee-cave-drilling-inc.md) | 10 | 200 | 10 | 2020–2026 |
| [Apex Drilling, Inc.](/driller/apex-drilling-inc.md) | 10 | 240 | 8 | 2006–2025 |
| [L & L Drilling Co.](/driller/l-l-drilling-co.md) | 7 | 285 | 6 | 2014–2019 |
| [Western Water Wells](/driller/western-water-wells.md) | 4 | 300 | 40 | 2011–2018 |
| [Magill Drilling](/driller/magill-drilling.md) | 4 | 200 | 5 | 2016 |
| [J and J Water Wells](/driller/j-and-j-water-wells.md) | 2 | 360 | — | 2023–2024 |
| [aquatech solutions](/driller/aquatech-solutions.md) | 2 | 220 | 100 | 2023 |
| [Associated Drilling Inc](/driller/associated-drilling-inc.md) | 2 | 305 | — | 2014 |
| brian Walden drilling | 2 | — | — | 2011 |
| [Ashley Drilling & Well Service](/driller/ashley-drilling-well-service.md) | 1 | 120 | — | 2025 |
| [Magill Well Service](/driller/magill-well-service.md) | 1 | 165 | 24 | 2015 |
| [Zavala Drilling, CO](/driller/zavala-drilling-co.md) | 1 | 235 | — | 2012 |
| brian Walden | 1 | — | 3 | 2011 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 346 | 80.1% | 200 |
| Stock | 42 | 9.7% | 200 |
| Irrigation | 26 | 6.0% | 125 |
| Monitor | 7 | 1.6% | 32 |
| Environmental Soil Boring | 4 | 0.9% | 10 |
| Injection | 3 | 0.7% | 165 |
| Public Supply | 3 | 0.7% | 80 |
| Closed-Loop Geothermal | 1 | 0.2% | 235 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 120 | 140 | 34 |
| 2010s | 201 | 200 | 44 |
| 2020s | 111 | 200 | 38 |

### The deepest reports on file

*Deepest reports in state well grid 57-19. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 572320 | 2021 | 545 | — | 13 | Domestic |
| 564413 | 2021 | 505 | — | — | Domestic |
| 438273 | 2016 | 505 | 62 | 4 | Domestic |
| 259936 | 2011 | 500 | 200 | 25 | Domestic |
| 203765 | 2009 | 500 | — | 2 | Domestic |
| 565618 | 2021 | 450 | — | — | Domestic |
| 370291 | 2014 | 440 | 173 | 70 | Stock |
| 39594 | 2004 | 400 | 239 | — | Domestic |
| 32203 | 2004 | 400 | 66 | — | Domestic |
| 284841 | 2012 | 390 | 58 | 5 | Domestic |

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 57-19?

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 [Llano County](/county/llano.md).

### Grids with a comparable number of reports

- [07-01](/area/07-01.md)
- [35-50](/area/35-50.md)
- [19-34](/area/19-34.md)
- [66-12](/area/66-12.md)
- [68-15](/area/68-15.md)
- [33-12](/area/33-12.md)
- [68-16](/area/68-16.md)
- [67-25](/area/67-25.md)
- [68-38](/area/68-38.md)
- [69-50](/area/69-50.md)
- [31-54](/area/31-54.md)
- [10-13](/area/10-13.md)
- [29-34](/area/29-34.md)

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Página: https://texas-water-wells.pages.dev/area/57-19/
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