Texas well grid 78-40
A 7.5-minute quadrangle of the Texas state well grid, mostly in Live Oak County and Bee County. 159 reports, median depth 245 ft.
159Reports
245 ftMedian depth
90 ftWater at
50 gpmMedian yield
What you will drill through in grid 78-40
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Surface 72, Tan Clay 47, Clay 15, Sand 15, Tan Sand 15, Clayey Sand, Tan 12 |
| 25–50 ft | Tan Sand 8, Tan Clay 7, Clay 7, Red Clay 5, Shale 4, Sand 4 |
| 50–100 ft | Tan Clay 14, Tan Sand 12, Blue Clay 8, Clay 9, Sand 9, Gray Sand 8 |
| 100–200 ft | Gray Sand 23, Tan Clay 19, Blue Clay 17, Sand 13, Grey Sand 11, Clay 8 |
| 200–300 ft | Gray Sand 15, Sand 11, Blue Clay 12, Clay 8, Red Clay 7, Tan Clay 6 |
| 300–500 ft | Gray Clay 12, Blue Clay 9, Sand 5, Grey Sand 6, Gray Sand 5, Shale 3 |
| 500–1000 ft | Tan Sand 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 79 | 49.7% | 280 |
| Stock | 26 | 16.4% | 300 |
| Monitor | 17 | 10.7% | 60 |
| Environmental Soil Boring | 16 | 10.1% | 35 |
| Rig Supply | 14 | 8.8% | 285 |
| Industrial | 6 | 3.8% | 425 |
| Irrigation | 1 | 0.6% | 544 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 58 | 280 | 94 |
| 2010s | 79 | 150 | 85 |
| 2020s | 22 | 310 | 96 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 473111 | 2018 | 620 | 105 | 200 | Domestic |
| 673951 | 2024 | 544 | 90 | — | Irrigation |
| 469899 | 2018 | 540 | 83 | 70 | Stock |
| 575678 | 2021 | 502 | 198 | 70 | Stock |
| 282441 | 2012 | 485 | 92 | 300 | Industrial |
| 182727 | 2006 | 480 | 166 | 100 | Domestic |
| 140439 | 2004 | 480 | 73 | 300 | Domestic |
| 600893 | 2022 | 460 | 95 | 80 | Domestic |
| 294360 | 2012 | 445 | 83 | 250 | Domestic |
| 279711 | 2012 | 425 | 87 | 300 | Industrial |
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 78-40?
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 Live Oak County, Bee County.