Texas well grid 66-03
A 7.5-minute quadrangle of the Texas state well grid, mostly in Fayette County and Colorado County. 323 reports, median depth 270 ft.
323Reports
270 ftMedian depth
92 ftWater at
25 gpmMedian yield
What you will drill through in grid 66-03
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 94, Shale 77, Sand 36, Gravel 28, White Clay 27, Top Soil 26 |
| 25–50 ft | Sand 28, Tan Clay 15, Clay 11, Shale 8, Rock 7, Tan Sand 6 |
| 50–100 ft | Sand 49, Shale 31, Clay 21, Rock 16, Blue Clay 15, White Clay 13 |
| 100–200 ft | Sand 55, Shale 53, Rock 30, Clay 20, White Clay 13, Tan Clay 12 |
| 200–300 ft | Shale 29, Sand 28, Rock 26, Clay 12, White Clay 7, Hard Rock 4 |
| 300–500 ft | Shale 34, Sand 43, Rock 21, Clay 17, Sand & Rock 10, Blue Clay 6 |
| 500–1000 ft | Clay 14, Sand 11, Shale 11, Clay & Rock 3, Hard Clay 4, Hard Rock 2 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 268 | 83.0% | 250 |
| Rig Supply | 11 | 3.4% | 530 |
| Stock | 8 | 2.5% | 308 |
| Irrigation | 7 | 2.2% | 920 |
| Monitor | 7 | 2.2% | 35 |
| Environmental Soil Boring | 6 | 1.9% | 5 |
| Closed-Loop Geothermal | 6 | 1.9% | — |
| Industrial | 6 | 1.9% | 490 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 105 | 235 | 81 |
| 2010s | 122 | 294 | 101 |
| 2020s | 96 | 275 | 110 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 500730 | 2018 | 1,010 | 135 | 250 | Fracking Supply |
| 501175 | 2018 | 1,000 | 135 | 180 | Fracking Supply |
| 474030 | 2018 | 1,000 | 160 | 300 | Fracking Supply |
| 432895 | 2016 | 985 | 165 | 305 | Public Supply |
| 482462 | 2018 | 960 | 200 | 150 | Irrigation |
| 665243 | 2024 | 920 | 200 | 190 | Irrigation |
| 415083 | 2016 | 910 | 130 | 140 | Stock |
| 569537 | 2021 | 860 | 178 | 80 | Domestic |
| 397233 | 2015 | 810 | — | — | Domestic |
| 594211 | 2021 | 790 | 150 | 150 | Rig Supply |
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 66-03?
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, Austin County, Washington County, Jackson County.