# Well grid 66-33, Texas — Lavaca, DeWitt — how deep, and through what

> 462 well reports in Texas state well grid 66-33, covering Lavaca, DeWitt. Median depth 170 ft.

## Texas well grid 66-33

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Lavaca County](/county/lavaca.md) and [DeWitt County](/county/dewitt.md). **462** reports, median depth **170 ft**.

### What you will drill through in grid 66-33

*Logged in state well grid 66-33, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 170 , **Surface** 82 , **Top Soil** 80 , **Sand** 54 , **Sandstone** 19 , **Tan Clay** 18 |
| 25–50 ft | **Clay** 60 , **Sand** 28 , **Brown Sand-Sandstone** 12 , **Clay-Sandstone** 12 , **Sandstone** 10 , **Tan Clay** 8 |
| 50–100 ft | **Clay** 113 , **Sand** 41 , **Sandstone** 20 , **Tan Clay** 16 , **Sandy Clay** 10 , **Brown Sand-Sandstone** 12 |
| 100–200 ft | **Clay** 142 , **Sand** 57 , **Sandstone** 29 , **Shale** 27 , **Tan Clay** 16 , **Rock** 16 |
| 200–300 ft | **Clay** 46 , **Sand** 24 , **Shale** 9 , **Brown Sand-Sandstone (F)** 6 , **Rock** 6 , **Sand, Clay** 3 |
| 300–500 ft | **Clay** 9 , **Sand** 4 , **Rock** 2 , **Brown Sand-Sandstone (F)** 2 , **Hard Clay** 1 , **Sandstone** 1 |
| 500–1000 ft | **Clay** 3 , **Sand** 2 , **Sand-Sandstone** 1 |

### Who drills here

*Licensed firms in state well grid 66-33, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 151 | 182 | 40 | 2003–2026 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 100 | 178 | 45 | 2002–2025 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 43 | 10 | — | 2009–2024 |
| [Maresh Drilling Co., Inc.](/driller/maresh-drilling-co-inc.md) | 23 | 190 | 50 | 2004–2025 |
| [Vrana Well Service Inc.](/driller/vrana-well-service-inc.md) | 23 | 140 | 30 | 2005–2023 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 23 | 20 | — | 2020–2022 |
| [Burleson Services, Inc.](/driller/burleson-services-inc.md) | 15 | 240 | 90 | 2004–2010 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 8 | 305 | 50 | 2021–2026 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 8 | 30 | — | 2023–2025 |
| [WB Southern Drilling LLC](/driller/wb-southern-drilling-llc.md) | 6 | 185 | 65 | 2024–2026 |
| [Busselman Water Wells, LLC](/driller/busselman-water-wells-llc.md) | 6 | 245 | 60 | 2023–2026 |
| [Cobra Water Well Drilling, LLC.](/driller/cobra-water-well-drilling-llc.md) | 6 | 300 | 85 | 2012–2015 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 4 | 28 | — | 2021 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 4 | 25 | — | 2010 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 4 | — | 75 | 2006–2007 |
| [Goolsby Water Well Service LLC](/driller/goolsby-water-well-service-llc.md) | 3 | 205 | 35 | 2020–2022 |
| [Joe Ferguson Water Well Drilling, Inc.](/driller/joe-ferguson-water-well-drilling-inc.md) | 3 | 220 | — | 2014–2017 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 2 | 700 | 380 | 2024 |
| Truax Water Well Services, LLC | 2 | 150 | 40 | 2022–2023 |
| Vrana's Well Service Inc. | 2 | — | 100 | 2011 |
| [Wel-Mat Drilling LLP](/driller/wel-mat-drilling-llp.md) | 2 | — | — | 2009–2010 |
| [C & S UTESEY WATER WELL SERVICE & DRILLING, L.L.C.](/driller/c-s-utesey-water-well-service-drilling-l-l-c.md) | 2 | — | 66 | 2008 |
| [leeper w.w.](/driller/leeper-w-w.md) | 2 | 197 | 15 | 2006–2007 |
| [Cady's Water wells](/driller/cady-s-water-wells.md) | 1 | 250 | 60 | 2019 |
| [Gearen Drilling](/driller/gearen-drilling.md) | 1 | 300 | — | 2017 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 296 | 64.1% | 174 |
| Rig Supply | 58 | 12.6% | 280 |
| Environmental Soil Boring | 43 | 9.3% | 10 |
| Monitor | 35 | 7.6% | 30 |
| Stock | 18 | 3.9% | 170 |
| Other | 4 | 0.9% | 30 |
| Public Supply | 3 | 0.6% | — |
| Test Well | 2 | 0.4% | 20 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 128 | 165 | 68 |
| 2010s | 202 | 172 | 68 |
| 2020s | 132 | 170 | 80 |

### The deepest reports on file

*Deepest reports in state well grid 66-33. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 686110 | 2024 | 700 | 9 | 380 | Fracking Supply |
| 686106 | 2024 | 610 | 80 | 300 | Rig Supply |
| 263244 | 2011 | 564 | 99 | 60 | Domestic |
| 643885 | 2023 | 550 | 91 | 60 | Domestic |
| 478286 | 2018 | 380 | 53 | — | Rig Supply |
| 466840 | 2017 | 364 | 98 | — | Stock |
| 560639 | 2020 | 360 | 86 | 90 | Rig Supply |
| 163964 | 2005 | 360 | 110 | 70 | Rig Supply |
| 85148 | 2004 | 360 | 70 | 90 | Industrial |
| 365396 | 2014 | 358 | 85 | — | 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 66-33?

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](/privacy.md).

This grid falls in [Lavaca County](/county/lavaca.md), [DeWitt County](/county/dewitt.md).

### Grids with a comparable number of reports

- [32-35](/area/32-35.md)
- [24-30](/area/24-30.md)
- [27-02](/area/27-02.md)
- [27-45](/area/27-45.md)
- [65-27](/area/65-27.md)
- [58-41](/area/58-41.md)
- [67-48](/area/67-48.md)
- [56-63](/area/56-63.md)
- [06-21](/area/06-21.md)
- [24-61](/area/24-61.md)
- [27-17](/area/27-17.md)
- [77-57](/area/77-57.md)
- [23-18](/area/23-18.md)

---

Página: https://texas-water-wells.pages.dev/area/66-33/
Fonte: Texas Submitted Driller's Report Database — Texas Water Development Board, from reports filed with the Texas Department of Licensing and Regulation
Recolha: 2026-08-23