# Well grid 57-02, Texas — Llano, San Saba — how deep, and through what

> 100 well reports in Texas state well grid 57-02, covering Llano, San Saba. Median depth 185 ft.

## Texas well grid 57-02

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Llano County](/county/llano.md) and [San Saba County](/county/san-saba.md). **100** reports, median depth **185 ft**.

### What you will drill through in grid 57-02

*Logged in state well grid 57-02, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Topsoil** 71 , **Brown Sandstone** 10 , **White Lime** 8 , **White Limestone** 6 , **Brown Clay & Gravel** 6 , **Brown Clay** 5 |
| 25–50 ft | **Red Granite** 3 , **Gray Granite** 3 , **Grey Sandstone** 2 , **Blue Sandstone** 2 , **Tan Limestone** 1 , **Cream Color - Harder Hammer Resistance** 1 |
| 50–100 ft | **Red Granite** 4 , **Red Sandstone** 4 , **Pink Granite** 3 , **Black And Red Granite** 2 , **Hard Sandstone** 1 , **Reddish Hickory Sandstone** 1 |
| 100–200 ft | **Red Sandstone** 5 , **Gray Granite** 3 , **Red Granite** 3 , **Gray Lime** 2 , **Yellow Lime** 2 , **Gray Limestone** 2 |
| 200–300 ft | **Red Sandstone** 3 , **Fractures** 2 , **Fracture** 1 , **Large Fracture** 1 , **Fractured, More Water** 1 , **More Fractures And Water - Softer Grey Granite** 1 |
| 300–500 ft | **Stop** 2 , **Heavily Fractured** 1 , **Softer** 1 , **Big Fracture** 1 , **Turn Green/Grey** 1 , **Stop Hammer Lower 4" - Tannish Grey** 1 |
| 500–1000 ft | **Gray Sandstone (Hickory)** 1 , **Red Sandstone** 1 |

### Who drills here

*Licensed firms in state well grid 57-02, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Walden Drilling Inc](/driller/walden-drilling-inc.md) | 27 | 201 | 15 | 2010–2025 |
| [Magill Drilling & Water Well Service, LLC](/driller/magill-drilling-water-well-service-llc.md) | 26 | 185 | 25 | 2017–2025 |
| [Virdell Drilling Inc.](/driller/virdell-drilling-inc.md) | 26 | 160 | 35 | 2001–2016 |
| [Associated Drilling Inc](/driller/associated-drilling-inc.md) | 9 | 185 | — | 2015–2020 |
| [BoreTek LLC](/driller/boretek-llc.md) | 4 | 380 | — | 2025 |
| [J and J Water Wells](/driller/j-and-j-water-wells.md) | 2 | 480 | — | 2024–2025 |
| [Highland Drilling Inc.](/driller/highland-drilling-inc.md) | 2 | 220 | 20 | 2005–2006 |
| [Bee Cave Drilling, Inc.](/driller/bee-cave-drilling-inc.md) | 2 | 270 | 15 | 2004 |
| [Faught Drilling Co.](/driller/faught-drilling-co.md) | 1 | 150 | 80 | 2009 |
| [Magill Well Service](/driller/magill-well-service.md) | 1 | 330 | 100 | 2003 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 51 | 51.0% | 200 |
| Stock | 37 | 37.0% | 175 |
| Irrigation | 12 | 12.0% | 240 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 22 | 200 | 37 |
| 2010s | 47 | 180 | 54 |
| 2020s | 31 | 185 | 45 |

### The deepest reports on file

*Deepest reports in state well grid 57-02. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 25081 | 2003 | 620 | 285 | 60 | Domestic |
| 630395 | 2023 | 505 | 250 | 50 | Domestic |
| 298980 | 2012 | 503 | — | 20 | Domestic |
| 8981 | 2002 | 500 | 257 | 50 | Domestic |
| 670040 | 2024 | 480 | 126 | — | Domestic |
| 329151 | 2013 | 475 | — | — | Stock |
| 414544 | 2016 | 460 | 130 | — | Stock |
| 371847 | 2014 | 460 | 107 | 300 | Irrigation |
| 580412 | 2021 | 445 | 237 | — | Domestic |
| 614079 | 2022 | 425 | 234 | — | 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 57-02?

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), [San Saba County](/county/san-saba.md).

### Grids with a comparable number of reports

- [10-60](/area/10-60.md)
- [20-23](/area/20-23.md)
- [23-64](/area/23-64.md)
- [33-13](/area/33-13.md)
- [34-42](/area/34-42.md)
- [37-24](/area/37-24.md)
- [41-32](/area/41-32.md)
- [43-04](/area/43-04.md)
- [44-22](/area/44-22.md)
- [56-32](/area/56-32.md)
- [59-10](/area/59-10.md)
- [64-15](/area/64-15.md)
- [67-17](/area/67-17.md)

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Página: https://texas-water-wells.pages.dev/area/57-02/
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