Texas well grid 66-39
A 7.5-minute quadrangle of the Texas state well grid, mostly in Wharton County and Brazos County. 190 reports, median depth 180 ft.
190Reports
180 ftMedian depth
45 ftWater at
75 gpmMedian yield
What you will drill through in grid 66-39
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 72, Sand 55, Top Soil 39, Red Clay 34, Surface Soil 23, Topsoil 20 |
| 25–50 ft | Clay 44, Sand 32, Red Clay 15, Gravel 9, Med Sand 4, Sand & Gravel 3 |
| 50–100 ft | Clay 57, Sand 41, Red Clay 19, Clay & Rock 5, Rock 4, Sand & Rock 4 |
| 100–200 ft | Sand 92, Clay 51, Coarse Sand 21, Rock 10, Clay & Rock 8, Med Sand 7 |
| 200–300 ft | Sand 25, Clay 16, Rock 5, Clay & Rock 4, Sand & Rock 3, Clay Td 4 |
| 300–500 ft | Sand 11, Clay 11, Sand Course 1, Sand & Clay 3, Rock 2, Sand/Clay 2 |
| 500–1000 ft | Clay 11, Sand 11, Sand & Clay 5, Sand & Rock 1, Hard Clay 1, Sand/Clay 2 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 92 | 48.4% | 160 |
| Rig Supply | 33 | 17.4% | 182 |
| Industrial | 27 | 14.2% | 200 |
| Irrigation | 19 | 10.0% | 610 |
| Stock | 17 | 8.9% | 180 |
| Other | 1 | 0.5% | 310 |
| Public Supply | 1 | 0.5% | 368 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 70 | 190 | 36 |
| 2010s | 65 | 180 | 42 |
| 2020s | 55 | 170 | 50 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 623371 | 2022 | 1,010 | 40 | 100 | Rig Supply |
| 348965 | 2013 | 950 | 25 | — | Irrigation |
| 348964 | 2013 | 950 | 28 | — | Irrigation |
| 339197 | 2013 | 900 | 25 | — | Irrigation |
| 310875 | 2013 | 900 | 25 | — | Irrigation |
| 283825 | 2012 | 900 | 32 | — | Irrigation |
| 317090 | 2013 | 821 | 13 | — | Irrigation |
| 215568 | 2010 | 745 | 40 | — | Irrigation |
| 528126 | 2019 | 680 | — | 2,700 | Irrigation |
| 637276 | 2023 | 610 | 50 | 2,500 | Irrigation |
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 66-39?
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 Wharton County, Brazos County, Jackson County, Matagorda County.