Texas well grid 66-25
A 7.5-minute quadrangle of the Texas state well grid, mostly in Lavaca County and Fort Bend County. 363 reports, median depth 185 ft.
363Reports
185 ftMedian depth
87 ftWater at
30 gpmMedian yield
What you will drill through in grid 66-25
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 85, Top Soil 61, Tan Clay 46, Surface 31, Tan Sandrock 29, Tan & Gray Clay 27 |
| 25–50 ft | Clay 26, Tan Clay 15, Sandstone 11, Sand 10, Tan Sand 9, Brown Sand 9 |
| 50–100 ft | Clay 64, Sand 21, Tan Sand 25, Tan Clay 27, Brown Sand 18, Tan & Gray Clay 13 |
| 100–200 ft | Clay 73, Tan Sand 29, Sand 27, Tan Clay 26, Brown Sand 13, Tan Sand And Layered Rock 14 |
| 200–300 ft | Clay 27, Tan Sand 4, Tan Sandy Clay 6, Sand 6, Shale 6, Tan Clay 4 |
| 300–500 ft | Clay 4, Shale 3, Gr Sand Sandstone Clay 1, Gray Sand And Sandstone (F) 1, Gray Sand And Sandstone And Clay (F) 1, Sand 2 |
| 500–1000 ft | Multi Color Shale/Mushy Shale 1, Mushy Sandy Shale 1, Shale 1, Ft. = Gray Sand 1, Ft. = Blue Clay 1 |
| 1000–5000 ft | Red Shale 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Vrana Well Service Inc. | 157 | 160 | 25 | 2003–2026 |
| CHANDLER DRILLING INC | 71 | 192 | 30 | 2005–2026 |
| Friedel Drilling Company | 41 | 190 | 40 | 2002–2026 |
| Maresh Drilling Co., Inc. | 38 | 200 | 40 | 2002–2026 |
| Vrana Well Serv. Inc. | 13 | 225 | 30 | 2003–2014 |
| WB Southern Drilling LLC | 10 | 190 | 30 | 2023–2026 |
| Vrana's Well Service Inc. | 7 | 189 | 40 | 2011–2014 |
| Busselman Water Wells, LLC | 5 | 180 | 25 | 2024–2025 |
| Cobra Water Well Drilling, LLC. | 4 | 220 | 80 | 2013–2023 |
| W-5 water well service | 2 | 148 | 25 | 2012 |
| A C Water Well Service | 1 | 215 | — | 2022 |
| Rangnow Water Well Service | 1 | 160 | 30 | 2021 |
| MoMaresh Drilling Co., Inc. | 1 | 140 | 50 | 2012 |
| Thomas Moy and Sons | 1 | 645 | — | 2011 |
| Bruce Vrana | 1 | — | 30 | 2010 |
| Neuendorff's Water Well Svc., Inc. | 1 | 165 | 60 | 2009 |
| bVrana Well Service | 1 | 376 | 50 | 2008 |
| Richter Well Drilling, Inc. | 1 | 203 | 42 | 2004 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 328 | 90.4% | 180 |
| Stock | 25 | 6.9% | 203 |
| Rig Supply | 6 | 1.7% | 373 |
| Irrigation | 2 | 0.6% | 562 |
| Fracking Supply | 1 | 0.3% | — |
| Industrial | 1 | 0.3% | 645 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 112 | 164 | 75 |
| 2010s | 141 | 185 | 91 |
| 2020s | 110 | 200 | 88 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 156947 | 2008 | 720 | 142 | 42 | Domestic |
| 275845 | 2011 | 645 | 80 | — | Industrial |
| 334725 | 2006 | 562 | 100 | 100 | Irrigation |
| 681658 | 2024 | 520 | — | — | Domestic |
| 286713 | 2012 | 470 | 164 | 50 | Rig Supply |
| 336420 | 2011 | 450 | 131 | — | Rig Supply |
| 719492 | 2026 | 440 | — | — | Domestic |
| 681655 | 2024 | 420 | — | — | Domestic |
| 367927 | 2014 | 410 | 151 | 3 | Domestic |
| 582087 | 2021 | 404 | 102 | — | Domestic |
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 66-25?
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 Lavaca County, Fort Bend County.