Texas well grid 78-31
A 7.5-minute quadrangle of the Texas state well grid, mostly in Live Oak County. 113 reports, median depth 55 ft.
113Reports
55 ftMedian depth
66 ftWater at
90 gpmMedian yield
What you will drill through in grid 78-31
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Surface 24, Tan Clay 21, Topsoil 8, Fill Material - Silty Clay, Brown, Dry, Medium Plasticity, O 8, Silty Sand; Gray 5, Clayey Sand, Gray, Dry, Low Plasticity, Odor, Trace Caliche. 7 |
| 25–50 ft | Gray Clay 8, Clay, Silty, Tan, Stiff, Dry With Gray Streaks, Color Change 4, Sandy Clay; Gray 3, Silty Sand; Gray 2, Clayey Sand, Grayish Tan With Iron Staining, Dense, Moist, M 2, Sandy Lean Clay, Tan, Slightly Moist To Moist, Very Stiff, F 2 |
| 50–100 ft | Blue Shale 3, Gray Clay 3, Gray Sandy Clay 2, Clay 1, Blue Clay 1, Tan Clay 1 |
| 100–200 ft | Sand 5, Blue Shale 4, Gray Sand 3, Grey Clay 2, Grey Sand 2, Sandy Shale 2 |
| 200–300 ft | Shale 3, Sand 3, Gray Clay 3, Clay 2, Grey Clay 1, Gray Sand 2 |
| 300–500 ft | Gray Clay 8, Sand 4, Gray Sand W/Strips Clay 4, Gray Sand 4, Grey Clay 1, Silty Gray Sand W/Strips Clay 2 |
| 500–1000 ft | Gray Clay 10, Grey Clay 3, Clay 4, Gray Sand 5, Cemented Grey Sand 1, Shale 4 |
| 1000–5000 ft | Shale 5, Sand 5, Sand & Shale 2, Gray Shale 2, Sandy Shale 1, Clay 2 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 36 | 31.9% | 35 |
| Environmental Soil Boring | 25 | 22.1% | 20 |
| Industrial | 15 | 13.3% | 575 |
| Domestic | 11 | 9.7% | 265 |
| Stock | 10 | 8.8% | 600 |
| Rig Supply | 9 | 8.0% | 560 |
| Fracking Supply | 6 | 5.3% | 705 |
| Other | 1 | 0.9% | 1,572 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 7 | 220 | 52 |
| 2010s | 75 | 100 | 59 |
| 2020s | 31 | 35 | 120 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 518108 | 2019 | 1,602 | 34 | 168 | Industrial |
| 408299 | 2015 | 1,572 | 59 | 300 | Other |
| 703606 | 2025 | 925 | 130 | 40 | Stock |
| 558820 | 2020 | 705 | 80 | 150 | Fracking Supply |
| 329408 | 2013 | 705 | 53 | 150 | Industrial |
| 297813 | 2012 | 700 | 93 | 50 | Rig Supply |
| 292193 | 2012 | 670 | 76 | 40 | Industrial |
| 351353 | 2013 | 660 | 32 | 150 | Stock |
| 610421 | 2022 | 630 | 145 | 24 | Stock |
| 247070 | 2011 | 620 | — | 250 | 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 78-31?
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.