Texas well grid 68-39
A 7.5-minute quadrangle of the Texas state well grid, mostly in Bexar County and Wilson County. 185 reports, median depth 160 ft.
185Reports
160 ftMedian depth
52 ftWater at
20 gpmMedian yield
What you will drill through in grid 68-39
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Top Soil 59, Clay 27, Sandy Clay 15, Sand 10, Rock 10, Yellow Clay 9 |
| 25–50 ft | Rock 17, Sand 17, Blue Shale 17, Shale 15, Clay 11, Gray Clay 6 |
| 50–100 ft | Sand 49, Rock 39, Shale 35, Blue Shale 17, Blue Clay 11, Clay 7 |
| 100–200 ft | Shale 70, Sand 66, Rock 47, Clay 13, Sandy Shale 14, Sand Streaks 7 |
| 200–300 ft | Rock 15, Shale 16, Sand 17, Sandy Shale 5, Clay 4, Shale (Td) 4 |
| 300–500 ft | Sand 2, Water Sand 1, Rock 1, Water Sand (Td) 1, Sand & Shale Streaks 1, Shale 1 |
| 1000–5000 ft | Course Sand 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| HERBOLD BROTHERS | 38 | 175 | 20 | 2003–2015 |
| HERBOLD DRILLING | 33 | 230 | 18 | 2014–2025 |
| Vortex Drilling Partners, LP | 27 | 15 | — | 2019–2020 |
| Deharde Water Well Service | 25 | 180 | 30 | 2003–2026 |
| STEVENS DRILLING & WATER WELL SERVICE | 20 | 223 | 30 | 2015–2023 |
| Stevens Drilling and Water Well Service | 9 | 250 | 20 | 2014–2023 |
| Vortex Drilling, Inc. | 6 | 10 | — | 2014–2018 |
| Roddy Qualls Environmental Drilling | 5 | 20 | — | 2020 |
| Mathers Environmental Drilling Inc. | 2 | 30 | — | 2025 |
| Daveleous Jones LLC | 2 | 30 | — | 2025 |
| HERBOLD BROS. DRILLING | 2 | 45 | 40 | 2002 |
| Well Done Water Works, LLC | 1 | 240 | 30 | 2026 |
| sotex water well service | 1 | 198 | 17 | 2025 |
| (M. R. Miller, PG) | 1 | 30 | — | 1999 |
| Underground Water Resources, LLC | 1 | 200 | — | 2025 |
| TERO DRILLING LLC | 1 | 30 | — | 2022 |
| Thomas Moy and Sons Water Well Drilling Inc. | 1 | 280 | 15 | 2022 |
| TJ & TB Drilling Inc | 1 | 200 | 2 | 2020 |
| Austin Geo-Logic | 1 | 30 | — | 2017 |
| Schaefer Water Well | 1 | 40 | 20 | 2015 |
| HERBOLD BROTHERS DRILLING | 1 | 200 | 15 | 2013 |
| HERBOLD BROTHER | 1 | 185 | 25 | 2013 |
| Deharde Wate Well Service | 1 | 300 | 2 | 2007 |
| Mesquite Drilling | 1 | — | 30 | 2004 |
| J B Drilling | 1 | — | 45 | 2008 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 135 | 73.0% | 200 |
| Environmental Soil Boring | 30 | 16.2% | 13 |
| Monitor | 10 | 5.4% | 30 |
| Stock | 4 | 2.2% | 180 |
| Test Well | 4 | 2.2% | 20 |
| Other | 1 | 0.5% | 30 |
| Irrigation | 1 | 0.5% | 300 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1990s | 1 | 30 | 19 |
| 2000s | 40 | 160 | 45 |
| 2010s | 69 | 160 | 50 |
| 2020s | 75 | 180 | 68 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 436200 | 2016 | 365 | 100 | 2 | Domestic |
| 590105 | 2021 | 360 | 166 | — | Domestic |
| 634638 | 2023 | 342 | 84 | 75 | Domestic |
| 668188 | 2024 | 340 | 120 | 2 | Domestic |
| 635053 | 2023 | 340 | 83 | — | Domestic |
| 558703 | 2020 | 335 | 20 | 40 | Domestic |
| 639202 | 2023 | 300 | 120 | 30 | Domestic |
| 620567 | 2022 | 300 | 75 | 75 | Domestic |
| 574027 | 2021 | 300 | 112 | 25 | Domestic |
| 324214 | 2013 | 300 | 33 | 75 | 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 68-39?
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 Bexar County, Wilson County, Guadalupe County.