Texas well grid 66-34
A 7.5-minute quadrangle of the Texas state well grid, mostly in Lavaca County and Colorado County. 274 reports, median depth 182 ft.
274Reports
182 ftMedian depth
68 ftWater at
50 gpmMedian yield
What you will drill through in grid 66-34
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 134, Top Soil 67, Sand 53, Surface 40, Red Clay 21, Tan Sand 12 |
| 25–50 ft | Clay 62, Sand 31, Red Clay 17, Brown Sand 10, Sandstone 9, Tan Clay 8 |
| 50–100 ft | Clay 86, Sand 50, Sandstone 14, Tan Clay 12, Sandy Clay 12, Brown Sand-Sandstone 9 |
| 100–200 ft | Clay 127, Sand 56, Tan Clay 13, Sandstone 12, Brown Sand-Sandstone (F) 11, Sand-Sandstone 11 |
| 200–300 ft | Clay 33, Sand 10, Tan Clay 4, Tan Sand & Layered Rock 3, Sand-Sandstone 3, Shale 3 |
| 300–500 ft | Clay 4, Sand 3, Shale 3, Tan Sandy Clay And Layered Rock 2, Tan Clay And Layered Rock 2, Sand-Sandstone 1 |
| 500–1000 ft | Sand 1, Shale 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| CHANDLER DRILLING INC | 118 | 182 | 40 | 2003–2026 |
| Friedel Drilling Company | 59 | 194 | 50 | 2002–2026 |
| Maresh Drilling Co., Inc. | 21 | 200 | 50 | 2001–2025 |
| Vortex Drilling, Inc. | 14 | 20 | — | 2006–2014 |
| Vrana Well Service Inc. | 11 | 138 | 60 | 2004–2019 |
| Everett Carroll Water Well Service | 7 | 220 | 70 | 2005–2007 |
| WB Southern Drilling LLC | 6 | 182 | 75 | 2024–2026 |
| Texas Southern Drilling | 5 | 205 | 20 | 2023–2025 |
| Bluebonnet Water Wells | 3 | 225 | 60 | 2025–2026 |
| Cobra Water Well Drilling, LLC. | 3 | 240 | 60 | 2011–2020 |
| J&S WATER WELLS | 3 | 270 | 70 | 2007–2016 |
| RONNIE GOOLSBY WATER WELL SERVICE | 3 | — | 60 | 2006–2007 |
| Busselman Water Wells, LLC | 2 | 183 | 50 | 2024–2025 |
| Cady's Water wells | 2 | 150 | 60 | 2015–2021 |
| Vrana Well Serv. Inc. | 2 | 115 | 100 | 2006–2013 |
| Burleson Services, Inc. | 2 | 240 | 90 | 2007–2009 |
| BEST DRILLING SERVICES, INC. | 2 | 25 | — | 2006 |
| Neuendorff's Water Well Service, Inc. | 1 | 155 | 30 | 2020 |
| Ricky Bonds Water Wells | 1 | 120 | 15 | 2017 |
| Joe Ferguson Drilling, Inc. | 1 | 240 | — | 2004 |
| BURLESON SERVICE INC | 1 | 185 | 90 | 2008 |
| Triple C. Drilling | 1 | 200 | 30 | 2003 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 216 | 78.8% | 180 |
| Stock | 19 | 6.9% | 176 |
| Rig Supply | 17 | 6.2% | 220 |
| Environmental Soil Boring | 13 | 4.7% | 20 |
| Industrial | 4 | 1.5% | 270 |
| Monitor | 3 | 1.1% | 25 |
| Test Well | 1 | 0.4% | 86 |
| Injection | 1 | 0.4% | — |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 85 | 180 | 67 |
| 2010s | 91 | 175 | 69 |
| 2020s | 98 | 188 | 70 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 718238 | 2026 | 840 | 128 | 150 | Stock |
| 301456 | 2012 | 540 | 133 | 100 | Domestic |
| 236524 | 2010 | 460 | 120 | 90 | Domestic |
| 139676 | 2008 | 410 | 130 | 130 | Industrial |
| 612924 | 2022 | 400 | 41 | — | Domestic |
| 179965 | 2008 | 380 | — | 75 | Rig Supply |
| 620526 | 2022 | 350 | 135 | 40 | Domestic |
| 538166 | 2020 | 320 | 43 | 35 | Domestic |
| 645188 | 2023 | 300 | 46 | 100 | Domestic |
| 388525 | 2015 | 300 | 99 | 80 | 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 66-34?
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, Colorado County, Fayette County, DeWitt County, Jackson County.