# Well grid 57-09, Texas — Llano, Mason — how deep, and through what

> 217 well reports in Texas state well grid 57-09, covering Llano, Mason, Burnet. Median depth 185 ft.

## Texas well grid 57-09

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Llano County](/county/llano.md) and [Mason County](/county/mason.md). **217** reports, median depth **185 ft**.

### What you will drill through in grid 57-09

*Logged in state well grid 57-09, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Topsoil** 143 , **Red Granite** 45 , **Red Sandy Clay** 37 , **Alternating Red And Black Granite** 22 , **Black And Red Granite** 16 , **Alternating Red And Grey Granite** 15 |
| 25–50 ft | **Red Granite** 7 , **Red Metamorphic** 6 , **Gray Granite** 5 , **Grey Sandstone** 4 , **Red & Gray Metamorphic** 3 , **Red And Gray Granite** 2 |
| 50–100 ft | **Red Metamorphic** 8 , **Gray Granite** 6 , **Red Granite** 5 , **Brown Sandstone** 4 , **Grey Sandstone** 3 , **Pink Granite** 2 |
| 100–200 ft | **Red Granite** 14 , **Gray Granite** 6 , **Red Metamorphic** 3 , **Grey Granite** 2 , **Black Metamorphic** 2 , **Gray Pink Granite** 1 |
| 200–300 ft | **Red Granite** 3 , **Break Water Trace** 1 , **Sand** 1 , **Red & Gray Granite** 2 , **Red Metamorphic** 2 , **Blue Sandstone** 1 |
| 300–500 ft | **Sand** 1 , **Black Granite** 1 , **Blue Sandstone** 1 , **Pink Granite** 1 , **Black & Pink Shist** 1 , **Water 1 Gpm** 1 |
| 500–1000 ft | **Sand** 1 , **Blue Sandstone** 1 |

### Who drills here

*Licensed firms in state well grid 57-09, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Walden Drilling Inc](/driller/walden-drilling-inc.md) | 85 | 200 | 5 | 2010–2024 |
| [Virdell Drilling Inc.](/driller/virdell-drilling-inc.md) | 64 | 160 | 8 | 2001–2018 |
| [Magill Drilling & Water Well Service, LLC](/driller/magill-drilling-water-well-service-llc.md) | 47 | 185 | 7 | 2017–2026 |
| [Apex Drilling, Inc.](/driller/apex-drilling-inc.md) | 7 | 240 | 6 | 2008–2026 |
| [Bee Cave Drilling, Inc.](/driller/bee-cave-drilling-inc.md) | 3 | 150 | 2 | 2021–2026 |
| [L & L Drilling Co.](/driller/l-l-drilling-co.md) | 3 | 344 | 4 | 2007–2016 |
| [Highland Drilling Inc.](/driller/highland-drilling-inc.md) | 2 | 540 | 20 | 2005 |
| [BoreTek LLC](/driller/boretek-llc.md) | 1 | 100 | — | 2025 |
| Paul W McAnear | 1 | 250 | — | 2023 |
| [Magill Drilling](/driller/magill-drilling.md) | 1 | 160 | 12 | 2016 |
| [Magill Well Service](/driller/magill-well-service.md) | 1 | 100 | 16 | 2015 |
| [Western Water Wells Drilling Inc](/driller/western-water-wells-drilling-inc.md) | 1 | 280 | 1 | 2010 |
| [Western Water Wells](/driller/western-water-wells.md) | 1 | 330 | — | 2005 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 117 | 53.9% | 180 |
| Stock | 94 | 43.3% | 200 |
| Irrigation | 6 | 2.8% | 210 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 45 | 200 | 40 |
| 2010s | 81 | 180 | 40 |
| 2020s | 91 | 200 | 50 |

### The deepest reports on file

*Deepest reports in state well grid 57-09. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 66106 | 2005 | 540 | 361 | 20 | Domestic |
| 722512 | 2026 | 500 | — | 2 | Stock |
| 438272 | 2016 | 405 | 24 | 6 | Domestic |
| 268261 | 2011 | 400 | 95 | — | Domestic |
| 103305 | 2007 | 400 | 100 | 2 | Domestic |
| 124710 | 2007 | 344 | 3 | 3 | Domestic |
| 267535 | 2011 | 340 | 120 | 20 | Domestic |
| 227100 | 2010 | 340 | 200 | 9 | Domestic |
| 1605 | 2001 | 340 | 31 | 30 | Domestic |
| 58951 | 2005 | 330 | — | — | 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 57-09?

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), [Mason County](/county/mason.md), [Burnet County](/county/burnet.md).

### Grids with a comparable number of reports

- [77-26](/area/77-26.md)
- [80-07](/area/80-07.md)
- [87-38](/area/87-38.md)
- [03-57](/area/03-57.md)
- [19-39](/area/19-39.md)
- [80-26](/area/80-26.md)
- [35-31](/area/35-31.md)
- [79-22](/area/79-22.md)
- [10-45](/area/10-45.md)
- [10-64](/area/10-64.md)
- [39-61](/area/39-61.md)
- [56-56](/area/56-56.md)
- [59-20](/area/59-20.md)

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Página: https://texas-water-wells.pages.dev/area/57-09/
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