Texas well grid 57-19
A 7.5-minute quadrangle of the Texas state well grid, mostly in Llano County. 432 reports, median depth 180 ft.
432Reports
180 ftMedian depth
39 ftWater at
7 gpmMedian yield
What you will drill through in grid 57-19
| 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
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Virdell Drilling Inc. | 170 | 160 | 8 | 2001–2019 |
| Walden Drilling Inc | 106 | 200 | 5 | 2011–2025 |
| Magill Drilling & Water Well Service, LLC | 78 | 165 | 10 | 2017–2026 |
| Highland Drilling Inc. | 20 | 180 | 6 | 2003–2012 |
| Vortex Drilling, Inc. | 11 | 30 | — | 2006–2025 |
| Bee Cave Drilling, Inc. | 10 | 200 | 10 | 2020–2026 |
| Apex Drilling, Inc. | 10 | 240 | 8 | 2006–2025 |
| L & L Drilling Co. | 7 | 285 | 6 | 2014–2019 |
| Western Water Wells | 4 | 300 | 40 | 2011–2018 |
| Magill Drilling | 4 | 200 | 5 | 2016 |
| J and J Water Wells | 2 | 360 | — | 2023–2024 |
| aquatech solutions | 2 | 220 | 100 | 2023 |
| Associated Drilling Inc | 2 | 305 | — | 2014 |
| brian Walden drilling | 2 | — | — | 2011 |
| Ashley Drilling & Well Service | 1 | 120 | — | 2025 |
| Magill Well Service | 1 | 165 | 24 | 2015 |
| Zavala Drilling, CO | 1 | 235 | — | 2012 |
| brian Walden | 1 | — | 3 | 2011 |
What the wells are for
| 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 |
| 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
| 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.
This grid falls in Llano County.