Water wells in Pecos County, Texas
987 well reports on file. The median well here was taken to 285 ft and struck water at 117 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Pecos County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 140, Top Soil 111, Caliche 93, Overburden 81, Gravel 59, Tan Limestone 44 |
| 25–50 ft | Tan Clay 17, White Limestone 15, Tan Limestone 10, Tan Limestone. 9, Gravel And Sand 9, Gravel 9 |
| 50–100 ft | Gray Limestone 21, Tan Limestone 23, Gray Shale 15, Limestone 16, Gravel 14, Sandstone 12 |
| 100–200 ft | Clay 22, Gray Limestone 23, Sand 21, Sandstone 17, Red Clay 20, Tan Limestone 19 |
| 200–300 ft | Gray Limestone 24, Sand 18, Red Clay 18, Gravel 12, Blue Clay 13, Clay 12 |
| 300–500 ft | Sand 25, Gray Limestone 21, Tan Limestone 19, Blue Clay 21, Red Clay 19, Clay 12 |
| 500–1000 ft | Clay 19, Red Bed 17, Red Clay 18, Limestone 19, Sand 11, Blue Clay 12 |
| 1000–5000 ft | Gray Limestone 4, Tan Limestone 3, Mudstone W/Sand And Gypsum, Reddish Brown, Moderately Soft 1, Light Gray Limestone 2, Gray Clay 2, Red Sandstone 2 |
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 Pecos County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 200 | 20.3% | 10 |
| Domestic | 148 | 15.0% | 257 |
| Rig Supply | 145 | 14.7% | 492 |
| Monitor | 130 | 13.2% | 42 |
| Stock | 111 | 11.2% | 415 |
| Irrigation | 106 | 10.7% | 490 |
| Fracking Supply | 73 | 7.4% | 640 |
| Industrial | 52 | 5.3% | 442 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 289 | 100 | 156 |
| 2010s | 546 | 320 | 118 |
| 2020s | 152 | 300 | 93 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 65362 | 2005 | 3,700 | — | — | Industrial |
| 64989 | 2005 | 3,700 | — | — | Industrial |
| 507886 | 2019 | 3,265 | 68 | — | Irrigation |
| 714347 | 2025 | 2,096 | 8 | — | Monitor |
| 445462 | 2017 | 2,020 | 430 | — | Fracking Supply |
| 389767 | 2015 | 2,000 | 210 | 40 | Rig Supply |
| 544111 | 2020 | 1,952 | 118 | — | Irrigation |
| 525533 | 2019 | 1,920 | — | — | Stock |
| 544039 | 2020 | 1,640 | 117 | — | Irrigation |
| 493542 | 2018 | 1,500 | — | — | 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 Pecos 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
- Crockett
- Houston
- Mills
- Floyd
- La Salle
- Hemphill
- Callahan
- San Augustine
- Lampasas
- McCulloch
- Brooks
- San Saba
- Lipscomb
A sliding window, not a ranking. Every county.