Texas well grid 57-18
A 7.5-minute quadrangle of the Texas state well grid, mostly in Llano County. 264 reports, median depth 150 ft.
264Reports
150 ftMedian depth
37 ftWater at
9 gpmMedian yield
What you will drill through in grid 57-18
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 193, Red Granite 52, Red Metamorphic 38, Red & Black Metamorphic 32, Red Sandy Clay 30, Metamorphic Gravel & Clay 24 |
| 25–50 ft | Red & Black Metamorphic 17, Red Granite 8, Gray Granite 6, Red Metamorphic 5, Black And Red Granite 3, Black Granite 2 |
| 50–100 ft | Red Granite 17, Red Metamorphic 11, Red & Black Metamorphic 7, Gray Granite 6, Gray & Red Metamorphic 4, Black Granite 3 |
| 100–200 ft | Red Metamorphic 11, Red & Black Metamorphic 11, Red Granite 6, Grey Granite 4, Red & Gray Metamorphic 5, Black Metamorphic 4 |
| 200–300 ft | Red Metamorphic 4, Red Granite 2, Black / Grey Granite 1, Grey Granite 1, Red Granite With Gray Shale 1, Gray Granite 1 |
| 300–500 ft | Black Granite / Quartz 1, Red Granite 1, Grey Granite 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Virdell Drilling Inc. | 115 | 140 | 12 | 2001–2018 |
| Walden Drilling Inc | 79 | 150 | 5 | 2010–2026 |
| Magill Drilling & Water Well Service, LLC | 33 | 165 | 6 | 2017–2026 |
| Magill Drilling | 11 | 160 | 3 | 2015–2016 |
| Bee Cave Drilling, Inc. | 7 | 240 | 7 | 2019–2023 |
| Apex Drilling, Inc. | 4 | 200 | 6 | 2007–2020 |
| L & L Drilling Co. | 4 | 205 | 45 | 2013–2014 |
| Highland Drilling Inc. | 4 | 200 | 4 | 2005–2009 |
| Magill Well Service | 3 | 200 | 1 | 2015 |
| Ashley Drilling & Well Service | 2 | 100 | 15 | 2023 |
| brian Walden drilling | 1 | — | — | 2012 |
| Western Water Wells | 1 | 125 | 2 | 2011 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 214 | 81.1% | 150 |
| Stock | 50 | 18.9% | 165 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 92 | 140 | 30 |
| 2010s | 96 | 160 | 42 |
| 2020s | 76 | 160 | 42 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 573943 | 2021 | 450 | 40 | — | Stock |
| 645552 | 2023 | 400 | 49 | — | Domestic |
| 486785 | 2018 | 350 | 43 | 4 | Domestic |
| 343593 | 2013 | 328 | — | — | Domestic |
| 1952 | 2001 | 310 | 93 | 27 | Domestic |
| 337174 | 2013 | 305 | 55 | 1 | Domestic |
| 21715 | 2003 | 300 | 25 | 11 | Domestic |
| 4006 | 2001 | 300 | 29 | 4 | Domestic |
| 3993 | 2001 | 300 | 30 | 11 | Domestic |
| 343587 | 2013 | 278 | 25 | — | 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 57-18?
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.