Texas well grid 66-33
A 7.5-minute quadrangle of the Texas state well grid, mostly in Lavaca County and DeWitt County. 462 reports, median depth 170 ft.
462Reports
170 ftMedian depth
71 ftWater at
45 gpmMedian yield
What you will drill through in grid 66-33
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 170, Surface 82, Top Soil 80, Sand 54, Sandstone 19, Tan Clay 18 |
| 25–50 ft | Clay 60, Sand 28, Brown Sand-Sandstone 12, Clay-Sandstone 12, Sandstone 10, Tan Clay 8 |
| 50–100 ft | Clay 113, Sand 41, Sandstone 20, Tan Clay 16, Sandy Clay 10, Brown Sand-Sandstone 12 |
| 100–200 ft | Clay 142, Sand 57, Sandstone 29, Shale 27, Tan Clay 16, Rock 16 |
| 200–300 ft | Clay 46, Sand 24, Shale 9, Brown Sand-Sandstone (F) 6, Rock 6, Sand, Clay 3 |
| 300–500 ft | Clay 9, Sand 4, Rock 2, Brown Sand-Sandstone (F) 2, Hard Clay 1, Sandstone 1 |
| 500–1000 ft | Clay 3, Sand 2, Sand-Sandstone 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 296 | 64.1% | 174 |
| Rig Supply | 58 | 12.6% | 280 |
| Environmental Soil Boring | 43 | 9.3% | 10 |
| Monitor | 35 | 7.6% | 30 |
| Stock | 18 | 3.9% | 170 |
| Other | 4 | 0.9% | 30 |
| Public Supply | 3 | 0.6% | — |
| Test Well | 2 | 0.4% | 20 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 128 | 165 | 68 |
| 2010s | 202 | 172 | 68 |
| 2020s | 132 | 170 | 80 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 686110 | 2024 | 700 | 9 | 380 | Fracking Supply |
| 686106 | 2024 | 610 | 80 | 300 | Rig Supply |
| 263244 | 2011 | 564 | 99 | 60 | Domestic |
| 643885 | 2023 | 550 | 91 | 60 | Domestic |
| 478286 | 2018 | 380 | 53 | — | Rig Supply |
| 466840 | 2017 | 364 | 98 | — | Stock |
| 560639 | 2020 | 360 | 86 | 90 | Rig Supply |
| 163964 | 2005 | 360 | 110 | 70 | Rig Supply |
| 85148 | 2004 | 360 | 70 | 90 | Industrial |
| 365396 | 2014 | 358 | 85 | — | 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 66-33?
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 Lavaca County, DeWitt County.