Water wells in Gonzales County, Texas
2,501 well reports on file. The median well here was taken to 345 ft and struck water at 70 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Gonzales County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 414, Sand 371, Top Soil 383, Tan Clay 252, Red Clay 211, Sandy Clay 197 |
| 25–50 ft | Gray Clay 168, Clay 107, Blue Clay 100, Sand 100, Tan Clay 44, Rock 39 |
| 50–100 ft | Sand 250, Clay 225, Gray Clay 199, Blue Clay 136, Rock 87, Shale 61 |
| 100–200 ft | Sand 472, Clay 374, Gray Clay 224, Rock 169, Shale 109, Blue Clay 90 |
| 200–300 ft | Sand 406, Clay 351, Gray Clay 168, Rock 110, Shale 93, Clay & Rocks 64 |
| 300–500 ft | Sand 410, Clay 349, Rock 147, Shale 95, Gray Clay 119, Gray Sand And Layered Rock 76 |
| 500–1000 ft | Sand 86, Clay 94, Rock 30, Shale 27, Sandy Clay 19, Gray Clay 13 |
| 1000–5000 ft | Sand 14, Clay 11, Gray Shale 6, Sandy Gray Shale 2, Shale 4, Sandy Shale 4 |
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 Gonzales County
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Deharde Water Well Service | 374 | 420 | 80 | 2003–2026 |
| Friedel Drilling Company | 324 | 304 | 60 | 2002–2026 |
| Maresh Drilling Co., Inc. | 252 | 340 | 80 | 2001–2026 |
| CHANDLER DRILLING INC | 175 | 257 | 40 | 2003–2026 |
| Vortex Drilling, Inc. | 172 | 20 | — | 2006–2025 |
| Drillink, Inc. | 157 | 400 | 80 | 2006–2026 |
| J&S WATER WELLS | 99 | 450 | 120 | 2008–2019 |
| Lone Star Drilling & Pump Service | 74 | 322 | 35 | 2004–2014 |
| Lone Star Drlg & Pump Serv | 62 | 338 | 50 | 2003–2022 |
| Alsay Incorporated | 42 | 553 | 278 | 2003–2018 |
| Richter Well Drilling, Inc. | 41 | 360 | 70 | 2001–2026 |
| WB Southern Drilling LLC | 37 | 365 | 75 | 2023–2026 |
| J & S Water Wells - Primo Trejo | 37 | 670 | 130 | 2010–2012 |
| J & S Water Wells - Tomas Salinas | 35 | 490 | 130 | 2010–2013 |
| Hazelett Drilling | 29 | 400 | 50 | 2014–2026 |
| Rangnow Water Well Service | 28 | 320 | 60 | 2005–2026 |
| Motal Well Service | 26 | 340 | 30 | 2010–2026 |
| Evans Drilling | 25 | 260 | 50 | 2009–2022 |
| Texas Southern Drilling | 20 | 290 | 30 | 2020–2026 |
| BULLS EYE SERVICES LLC | 16 | 920 | 210 | 2018–2025 |
| Hazlett Drilling | 16 | 440 | 35 | 2024–2025 |
| HERBOLD DRILLING | 15 | 380 | 30 | 2015–2026 |
| Lone Star Drilling & Pump Serv. | 15 | 370 | 30 | 2003–2014 |
| Weisinger Incorporated | 13 | 1,327 | 1,896 | 2010–2021 |
| Leon Davis Water Well | 13 | 298 | 60 | 2015–2017 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 1,235 | 49.4% | 350 |
| Stock | 541 | 21.6% | 360 |
| Rig Supply | 195 | 7.8% | 430 |
| Monitor | 150 | 6.0% | 35 |
| Industrial | 132 | 5.3% | 490 |
| Environmental Soil Boring | 120 | 4.8% | 12 |
| Fracking Supply | 46 | 1.8% | 850 |
| Public Supply | 36 | 1.4% | 1,370 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 555 | 330 | 67 |
| 2010s | 1,233 | 360 | 70 |
| 2020s | 713 | 360 | 80 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 359784 | 2014 | 4,650 | — | — | Fracking Supply |
| 266360 | 2011 | 4,003 | 89 | 900 | Fracking Supply |
| 212204 | 2010 | 4,000 | 0 | 900 | Rig Supply |
| 233061 | 2010 | 3,951 | 0 | 800 | Rig Supply |
| 353683 | 2013 | 3,900 | 0 | 500 | Fracking Supply |
| 237168 | 2010 | 3,565 | 0 | 1,100 | Rig Supply |
| 388588 | 2015 | 3,548 | — | 1,500 | Fracking Supply |
| 248645 | 2011 | 3,533 | — | — | Industrial |
| 353681 | 2013 | 3,430 | 27 | 1,800 | Fracking Supply |
| 353685 | 2013 | 3,046 | 0 | 600 | 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 Gonzales 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.