Texas well grid 66-10
A 7.5-minute quadrangle of the Texas state well grid, mostly in Fayette County and Colorado County. 214 reports, median depth 240 ft.
214Reports
240 ftMedian depth
105 ftWater at
30 gpmMedian yield
What you will drill through in grid 66-10
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Tan Clay 37, Clay 28, Top Soil 24, White Clay 15, Topsoil 16, Brown Clay 14 |
| 25–50 ft | Tan Clay 21, Clay 9, White Clay 9, Blue Clay 9, Sand 7, Rock 6 |
| 50–100 ft | Blue Clay 19, Tan Clay 19, Sand 13, Clay 10, White Clay 11, Tan Sand 4 |
| 100–200 ft | Sand 18, Clay 21, Blue Clay 18, Rock 12, Tan Clay 9, Shale 7 |
| 200–300 ft | Sand 20, Clay 12, Shale 7, Gray Sand 6, Rock 4, Blue Clay 5 |
| 300–500 ft | Sand 5, Clay 7, Shale 5, White Clay 4, Mc Shale 3, Tan Clay 3 |
| 500–1000 ft | Sand 6, Clay 6, Shale 4, Sand Mix Shale 2, Clay & Shale 2, Shale & Clay 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 171 | 79.9% | 240 |
| Stock | 22 | 10.3% | 280 |
| Rig Supply | 11 | 5.1% | 670 |
| Irrigation | 4 | 1.9% | 260 |
| Industrial | 4 | 1.9% | — |
| Environmental Soil Boring | 2 | 0.9% | 10 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 54 | 210 | 94 |
| 2010s | 91 | 275 | 116 |
| 2020s | 69 | 215 | 96 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 433176 | 2016 | 1,150 | 140 | 100 | Rig Supply |
| 433167 | 2016 | 1,100 | 170 | 60 | Rig Supply |
| 449278 | 2017 | 850 | 150 | 120 | Rig Supply |
| 463511 | 2017 | 820 | 140 | 100 | Rig Supply |
| 311041 | 2013 | 680 | 140 | 80 | Domestic |
| 390355 | 2015 | 670 | 115 | 120 | Rig Supply |
| 628716 | 2022 | 650 | 80 | 120 | Rig Supply |
| 521657 | 2019 | 630 | 200 | 70 | Stock |
| 446108 | 2017 | 620 | 180 | — | Stock |
| 311727 | 2013 | 620 | 136 | 100 | 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 66-10?
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 Fayette County, Colorado County, Victoria County, Waller County, Harris County.