Texas well grid 57-42
A 7.5-minute quadrangle of the Texas state well grid, mostly in Gillespie County. 750 reports, median depth 158 ft.
750Reports
158 ftMedian depth
62 ftWater at
22 gpmMedian yield
What you will drill through in grid 57-42
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 242, Red Clay 85, Brown Topsoil 89, Brown Clay 71, Brown Sand 52, Brown Clay & Gravel 53 |
| 25–50 ft | Brown Sand 43, Red Clay 40, Sand 17, Red Shale & Clay 9, Gray Shale & Limestone 6, Red Shale 4 |
| 50–100 ft | Brown Sand 45, Red Clay 53, Sand 16, Water 10 Gpm 13, Red Clay & Limestone W/Sand 14, Red Shale & Clay 10 |
| 100–200 ft | Red Granite 61, Red Clay 32, Brown Sand 22, Sand 13, Water 10 Gpm 18, Granite Gravel 18 |
| 200–300 ft | Red Granite 15, Red Clay 6, Water 5 Gpm 5, Brown Sandstone 5, Sand 4, Brown Sand 3 |
| 300–500 ft | White & Red Limestone 3, Red Granite 6, Brown Limestone 3, Water 15 Gpm 3, Red Sandstone 3, Water 2 Gpm 4 |
| 500–1000 ft | Brown Limestone 1, Brown Limestone With Gray Layers 1, Water 20 Gpm 1, Water 12 Gpm 1, Brown Limestone With White Layers 1, Gray & Red Limestone 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 567 | 75.6% | 160 |
| Monitor | 74 | 9.9% | 24 |
| Injection | 33 | 4.4% | 45 |
| Stock | 21 | 2.8% | 157 |
| Environmental Soil Boring | 20 | 2.7% | 15 |
| Irrigation | 16 | 2.1% | 200 |
| Test Well | 13 | 1.7% | 244 |
| Public Supply | 5 | 0.7% | 200 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 286 | 140 | 59 |
| 2010s | 272 | 156 | 63 |
| 2020s | 192 | 180 | 70 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 582101 | 2021 | 2,238 | 100 | 60 | Domestic |
| 289736 | 2012 | 900 | 124 | 10 | Domestic |
| 71062 | 2005 | 826 | 70 | 2 | Domestic |
| 535847 | 2020 | 718 | 96 | 122 | Irrigation |
| 91352 | 2006 | 540 | — | — | Domestic |
| 709155 | 2025 | 520 | 177 | 50 | Public Supply |
| 689850 | 2025 | 505 | 274 | 60 | Domestic |
| 71067 | 2005 | 504 | 71 | 2 | Domestic |
| 135086 | 2008 | 503 | 266 | 33 | Domestic |
| 650258 | 2023 | 500 | — | — | 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 57-42?
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.