Water wells in Martin County, Texas
5,987 well reports on file. The median well here was taken to 100 ft and struck water at 60 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Martin County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Caliche 3,222, Top Soil 2,651, Topsoil 1,687, Sand 948, Sandstone 327, Rock 294 |
| 25–50 ft | Sand 840, Sandstone 392, Red Clay 275, Rock 251, Sand And Gravel 198, Sandy Clay 182 |
| 50–100 ft | Red Clay 1,666, Sand 662, Red Bed 578, Sand And Gravel 474, Gravel 409, Sandstone 270 |
| 100–200 ft | Red Clay 941, Red Bed 711, Redbed 453, Gravel 265, Sand 213, Sand And Gravel 115 |
| 200–300 ft | Red Bed 71, Red Clay 56, Redbed 23, Sand 15, Red Clay And Sandstone 6, Sandstone 5 |
| 300–500 ft | Sand 27, Red Clay 22, Red Bed 24, Red/Brown Clay 17, Red Shale 9, Shale 6 |
| 500–1000 ft | Red Clay 23, Red Bed 26, Santa Rosa/Dockum 24, Sand With Clay Stringers 22, Sandstone 15, Sand 14 |
| 1000–5000 ft | Shale/Mudstone 27, Shale 15, Sand 14, Red Shale 15, Red Clay 13, Sand, Shale 3 |
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 Martin County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Rig Supply | 2,360 | 39.4% | 105 |
| Domestic | 1,246 | 20.8% | 90 |
| Irrigation | 944 | 15.8% | 140 |
| Fracking Supply | 540 | 9.0% | 80 |
| Monitor | 290 | 4.8% | 75 |
| Environmental Soil Boring | 215 | 3.6% | 20 |
| Other | 95 | 1.6% | 108 |
| Stock | 94 | 1.6% | 100 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 539 | 95 | 65 |
| 2010s | 3,453 | 107 | 60 |
| 2020s | 1,995 | 95 | 60 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 332027 | 2012 | 1,933 | 800 | — | Rig Supply |
| 331990 | 2012 | 1,900 | 800 | — | Rig Supply |
| 249612 | 2011 | 1,843 | — | — | Rig Supply |
| 383642 | 2014 | 1,820 | 662 | 130 | Fracking Supply |
| 374606 | 2014 | 1,820 | 662 | 130 | Fracking Supply |
| 421631 | 2015 | 1,805 | — | — | Fracking Supply |
| 421628 | 2015 | 1,805 | — | — | Fracking Supply |
| 442424 | 2016 | 1,800 | 1,080 | 85 | Fracking Supply |
| 442419 | 2016 | 1,800 | 987 | 130 | Fracking Supply |
| 442415 | 2016 | 1,800 | 989 | 95 | Fracking 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 Martin 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.