Water wells in McCulloch County, Texas
966 well reports on file. The median well here was taken to 180 ft and struck water at 84 ft — against 180 ft and 80 ft across Texas.
What you will drill through in McCulloch County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 267, Caliche 108, White Lime 91, Top Soil 67, Red Clay 50, Yellow Clay 49 |
| 25–50 ft | Red Clay 34, Yellow Clay 25, White Lime 21, Blue Clay 20, White Limestone 15, Tan Sandstone 15 |
| 50–100 ft | Red Clay 52, Gray Lime 32, Blue Shale 31, Gray Shale 20, Gray Sandstone 25, White Lime 23 |
| 100–200 ft | Gray Shale 40, Red Clay 43, Gray Lime 37, White Lime 30, Tan Sandstone 21, Blue Shale 29 |
| 200–300 ft | Gray Shale 25, Tan Sandstone 12, White Lime 12, Gray Clay 10, Brown Shale 8, Gray Lime 10 |
| 300–500 ft | White Lime 11, Gray Lime 10, Sand 13, Lime 12, Gray Shale 7, Red Sandstone 8 |
| 500–1000 ft | White Lime 9, Gray Shale 9, Gray Lime 9, Shale 10, Brown Lime 6, Lime 6 |
| 1000–5000 ft | Sand 17, Shale 12, Hickory Sand 14, Sand, Sandstone 2, Clay, Shale 2, Lime W/ Shale Stks 5 |
The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.
Who drills in McCulloch County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 296 | 30.6% | 225 |
| Stock | 291 | 30.1% | 220 |
| Environmental Soil Boring | 175 | 18.1% | 10 |
| Monitor | 103 | 10.7% | 22 |
| Test Well | 54 | 5.6% | 130 |
| Irrigation | 28 | 2.9% | 345 |
| Public Supply | 11 | 1.1% | 295 |
| Industrial | 6 | 0.6% | 210 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1990s | 4 | 20 | — |
| 2000s | 221 | 120 | 64 |
| 2010s | 494 | 127 | 70 |
| 2020s | 247 | 265 | 134 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 25906 | 2003 | 3,407 | 430 | 60 | Domestic |
| 46264 | 2004 | 3,337 | 430 | — | Domestic |
| 558395 | 2017 | 3,300 | 342 | 600 | Industrial |
| 474623 | 2017 | 3,240 | 375 | 400 | Irrigation |
| 667541 | 2024 | 3,180 | 280 | 400 | Stock |
| 665602 | 2024 | 3,180 | 280 | 400 | Stock |
| 674431 | 2024 | 3,082 | 408 | 250 | Stock |
| 277276 | 2012 | 3,075 | 25 | — | Domestic |
| 567651 | 2021 | 3,070 | 420 | 350 | Irrigation |
| 654519 | 2022 | 2,935 | 539 | 500 | Public Supply |
Every figure on this site is a median, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.
Drilling a well in McCulloch County?
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.
Counties with a comparable number of reports
A sliding window, not a ranking. Every county.