Texas well grid 56-40
A 7.5-minute quadrangle of the Texas state well grid, mostly in Gillespie County. 127 reports, median depth 225 ft.
127Reports
225 ftMedian depth
110 ftWater at
21 gpmMedian yield
What you will drill through in grid 56-40
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 39, Brown Topsoil 29, Brown Clay 14, Brown Limestone 11, Caliche & Limestone 8, Brown & Gray Limestone 7 |
| 25–50 ft | Red Clay 2, Red Clay With White Limestone 3, Tan Limestone 1, Red Clay And Sand W/ Limestone Ledges 2, Tan Clay 1, Brown & Yellow Limestone 2 |
| 50–100 ft | Gray Limestone 5, Brown Sand 4, Red Clay 4, Brown Limestone 4, Sand 3, Brown & White Limestone 3 |
| 100–200 ft | Brown Limestone 9, Gray Limestone 12, Brown Sandstone 5, Brown Sand 2, Gray & Brown Limestone 4, Red Shale & Clay 1 |
| 200–300 ft | Brown Limestone 6, Gray Limestone 6, Gray & Brown Limestone 4, Brown Sandstone 3, Water 4 Gpm 3, Gray Shale & Clay 2 |
| 300–500 ft | Gray Limestone 3, Brown Limestone 3, Brown & Gray Limestone 3, Gray And White Limestone 3, Grey And White Limestone 2, Tan Limestone 1 |
| 500–1000 ft | Brown Limestone 4, Water 4, Grey Limestone 1, Gray Sandstone 3, Water 60 Gpm 3, Gray Sandstone (Welge) 3 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| L & L Drilling Co. | 57 | 285 | 33 | 2002–2025 |
| Virdell Drilling Inc. | 31 | 220 | 17 | 2001–2018 |
| Magill Drilling & Water Well Service, LLC | 12 | 105 | 10 | 2018–2026 |
| Texan Water | 10 | 360 | 25 | 2019–2025 |
| PICKENS DRILLING CO. | 6 | 195 | 20 | 2007–2018 |
| Bee Cave Drilling, Inc. | 2 | 310 | 5 | 2017 |
| Legacy V Drilling LLC | 1 | 700 | — | 2026 |
| AQUA DOC WELL SERVICE | 1 | 810 | — | 2024 |
| Edmond's Water Well Drilling | 1 | 240 | 35 | 2022 |
| AQUADOC WELL SERVICE | 1 | 180 | 25 | 2022 |
| Hill Country Water Well Drilling | 1 | 240 | — | 2018 |
| Apex Drilling, Inc. | 1 | 760 | 15 | 2018 |
| Will Pickens Drilling Company | 1 | 75 | 25 | 2004 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 112 | 88.2% | 260 |
| Stock | 14 | 11.0% | 205 |
| Irrigation | 1 | 0.8% | 70 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 25 | 260 | 115 |
| 2010s | 65 | 218 | 113 |
| 2020s | 37 | 305 | 93 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 708343 | 2025 | 878 | 118 | — | Domestic |
| 707110 | 2025 | 815 | 62 | — | Domestic |
| 663731 | 2024 | 810 | 134 | — | Domestic |
| 491436 | 2018 | 787 | 150 | 60 | Domestic |
| 477061 | 2018 | 760 | — | 15 | Domestic |
| 519460 | 2019 | 747 | 151 | 136 | Domestic |
| 259712 | 2011 | 740 | 151 | 45 | Domestic |
| 52683 | 2005 | 740 | 135 | — | Domestic |
| 406217 | 2015 | 720 | 70 | 150 | Domestic |
| 491448 | 2018 | 707 | 134 | 120 | 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 56-40?
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 Gillespie County.