Texas well grid 68-40
A 7.5-minute quadrangle of the Texas state well grid, mostly in Guadalupe County and Wilson County. 328 reports, median depth 285 ft.
328Reports
285 ftMedian depth
80 ftWater at
25 gpmMedian yield
What you will drill through in grid 68-40
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Top Soil 149, Clay 59, Sand 59, Red Clay 42, Sandy Clay 29, Rock 23 |
| 25–50 ft | Sand 35, Blue Shale 33, Rock 24, Clay 18, Shale 19, Blue Clay 14 |
| 50–100 ft | Sand 126, Rock 94, Shale 98, Blue Shale 49, Clay 24, Blue Clay 24 |
| 100–200 ft | Sand 201, Shale 170, Rock 140, Sandy Shale 22, Clay 24, Sand Streaks 14 |
| 200–300 ft | Sand 139, Shale 111, Rock 94, Clay 22, Sandy Shale 19, Sand & Shale Streaks 10 |
| 300–500 ft | Sand 37, Shale 34, Rock 24, Clay 15, Shale (Td) 4, Sandy Shale 4 |
| 500–1000 ft | Sand 1, Shale 1, Clay 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| HERBOLD DRILLING | 117 | 280 | 20 | 2014–2026 |
| HERBOLD BROTHERS | 93 | 300 | 20 | 2003–2015 |
| Deharde Water Well Service | 53 | 283 | 45 | 2004–2025 |
| STEVENS DRILLING & WATER WELL SERVICE | 24 | 285 | 30 | 2015–2025 |
| Alamo1 Drilling | 5 | 25 | — | 2025 |
| HERBOLD BROTHERS DRILLING | 5 | 300 | 20 | 2002–2014 |
| Stevens Drilling and Water Well Service | 4 | 310 | 35 | 2015–2025 |
| TJ & TB Drilling Inc | 3 | 250 | 30 | 2013–2021 |
| Texas Southern Drilling | 2 | 235 | 50 | 2024 |
| HERBOLD BROS. | 2 | 360 | 20 | 2002 |
| HERBOLD BROS. DRILLING | 2 | 260 | 35 | 2002 |
| McKinley Drilling | 1 | 692 | 200 | 2026 |
| Bluebonnet Water Wells | 1 | 325 | 40 | 2025 |
| Evans Drilling | 1 | 250 | 40 | 2022 |
| Thomas Moy and Sons | 1 | 400 | — | 2015 |
| HERBOD BROHERS | 1 | — | 15 | 2013 |
| Kutscher Drilling | 1 | 325 | 35 | 2012 |
| PKF Well Service | 1 | 245 | 20 | 2011 |
| Lone Star Drilling & Pump Service | 1 | 311 | 25 | 2006 |
| Deharde Wate Well Service | 1 | 190 | — | 2005 |
| J B Drilling | 1 | 170 | 50 | 2008 |
| Deharde Water Wel Service | 1 | 274 | 100 | 2008 |
| HERBOLD BRTOTHERS | 1 | — | 30 | 2007 |
| HERBOLD BROTHES | 1 | 115 | 20 | 2006 |
| Armadigger, Inc. | 1 | — | — | 2006 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 303 | 92.4% | 290 |
| Stock | 10 | 3.0% | 245 |
| Irrigation | 9 | 2.7% | 320 |
| Environmental Soil Boring | 5 | 1.5% | 25 |
| Industrial | 1 | 0.3% | — |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 85 | 283 | 80 |
| 2010s | 134 | 300 | 90 |
| 2020s | 109 | 290 | 76 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 720150 | 2026 | 692 | 197 | 200 | Irrigation |
| 509345 | 2019 | 550 | 185 | 40 | Domestic |
| 492878 | 2018 | 540 | 195 | 40 | Domestic |
| 472508 | 2018 | 465 | — | — | Irrigation |
| 401745 | 2015 | 464 | 160 | 60 | Stock |
| 619919 | 2022 | 460 | 140 | 60 | Stock |
| 279921 | 2011 | 430 | 120 | 20 | Domestic |
| 617414 | 2022 | 420 | 65 | — | Domestic |
| 505092 | 2019 | 420 | 150 | 16 | Domestic |
| 269357 | 2011 | 420 | 45 | 100 | Stock |
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 68-40?
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 Guadalupe County, Wilson County, Medina County, Bexar County.