# Well grid 66-34, Texas — Lavaca, Colorado — how deep, and through what

> 274 well reports in Texas state well grid 66-34, covering Lavaca, Colorado, Fayette. Median depth 182 ft.

## Texas well grid 66-34

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Lavaca County](/county/lavaca.md) and [Colorado County](/county/colorado.md). **274** reports, median depth **182 ft**.

### What you will drill through in grid 66-34

*Logged in state well grid 66-34, by depth. The figure is how many wells hit it.*

| 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

*Licensed firms in state well grid 66-34, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 118 | 182 | 40 | 2003–2026 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 59 | 194 | 50 | 2002–2026 |
| [Maresh Drilling Co., Inc.](/driller/maresh-drilling-co-inc.md) | 21 | 200 | 50 | 2001–2025 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 14 | 20 | — | 2006–2014 |
| [Vrana Well Service Inc.](/driller/vrana-well-service-inc.md) | 11 | 138 | 60 | 2004–2019 |
| [Everett Carroll Water Well Service](/driller/everett-carroll-water-well-service.md) | 7 | 220 | 70 | 2005–2007 |
| [WB Southern Drilling LLC](/driller/wb-southern-drilling-llc.md) | 6 | 182 | 75 | 2024–2026 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 5 | 205 | 20 | 2023–2025 |
| [Bluebonnet Water Wells](/driller/bluebonnet-water-wells.md) | 3 | 225 | 60 | 2025–2026 |
| [Cobra Water Well Drilling, LLC.](/driller/cobra-water-well-drilling-llc.md) | 3 | 240 | 60 | 2011–2020 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 3 | 270 | 70 | 2007–2016 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 3 | — | 60 | 2006–2007 |
| [Busselman Water Wells, LLC](/driller/busselman-water-wells-llc.md) | 2 | 183 | 50 | 2024–2025 |
| [Cady's Water wells](/driller/cady-s-water-wells.md) | 2 | 150 | 60 | 2015–2021 |
| [Vrana Well Serv. Inc.](/driller/vrana-well-serv-inc.md) | 2 | 115 | 100 | 2006–2013 |
| [Burleson Services, Inc.](/driller/burleson-services-inc.md) | 2 | 240 | 90 | 2007–2009 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 2 | 25 | — | 2006 |
| [Neuendorff's Water Well Service, Inc.](/driller/neuendorff-s-water-well-service-inc.md) | 1 | 155 | 30 | 2020 |
| [Ricky Bonds Water Wells](/driller/ricky-bonds-water-wells.md) | 1 | 120 | 15 | 2017 |
| [Joe Ferguson Drilling, Inc.](/driller/joe-ferguson-drilling-inc.md) | 1 | 240 | — | 2004 |
| BURLESON SERVICE INC | 1 | 185 | 90 | 2008 |
| [Triple C. Drilling](/driller/triple-c-drilling.md) | 1 | 200 | 30 | 2003 |

### What the wells are for

*Purpose, and how deep each went.*

| 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% | — |

*By decade drilled.*

| 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

*Deepest reports in state well grid 66-34. Column one is the tracking number.*

| 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](/privacy.md).

This grid falls in [Lavaca County](/county/lavaca.md), [Colorado County](/county/colorado.md), [Fayette County](/county/fayette.md), [DeWitt County](/county/dewitt.md), [Jackson County](/county/jackson.md).

### Grids with a comparable number of reports

- [61-39](/area/61-39.md)
- [64-03](/area/64-03.md)
- [34-27](/area/34-27.md)
- [67-58](/area/67-58.md)
- [63-09](/area/63-09.md)
- [13-54](/area/13-54.md)
- [66-27](/area/66-27.md)
- [07-05](/area/07-05.md)
- [59-21](/area/59-21.md)
- [77-08](/area/77-08.md)
- [10-61](/area/10-61.md)
- [21-35](/area/21-35.md)
- [28-33](/area/28-33.md)

---

Página: https://texas-water-wells.pages.dev/area/66-34/
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