Texas well grid 57-02
A 7.5-minute quadrangle of the Texas state well grid, mostly in Llano County and San Saba County. 100 reports, median depth 185 ft.
100Reports
185 ftMedian depth
45 ftWater at
25 gpmMedian yield
What you will drill through in grid 57-02
| 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
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Walden Drilling Inc | 27 | 201 | 15 | 2010–2025 |
| Magill Drilling & Water Well Service, LLC | 26 | 185 | 25 | 2017–2025 |
| Virdell Drilling Inc. | 26 | 160 | 35 | 2001–2016 |
| Associated Drilling Inc | 9 | 185 | — | 2015–2020 |
| BoreTek LLC | 4 | 380 | — | 2025 |
| J and J Water Wells | 2 | 480 | — | 2024–2025 |
| Highland Drilling Inc. | 2 | 220 | 20 | 2005–2006 |
| Bee Cave Drilling, Inc. | 2 | 270 | 15 | 2004 |
| Faught Drilling Co. | 1 | 150 | 80 | 2009 |
| Magill Well Service | 1 | 330 | 100 | 2003 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 51 | 51.0% | 200 |
| Stock | 37 | 37.0% | 175 |
| Irrigation | 12 | 12.0% | 240 |
| 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
| 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.
This grid falls in Llano County, San Saba County.