# Well grid 66-17, Texas — Fayette, Lavaca — how deep, and through what

> 449 well reports in Texas state well grid 66-17, covering Fayette, Lavaca, Fort Bend. Median depth 160 ft.

## Texas well grid 66-17

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Fayette County](/county/fayette.md) and [Lavaca County](/county/lavaca.md). **449** reports, median depth **160 ft**.

### What you will drill through in grid 66-17

*Logged in state well grid 66-17, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Tan Clay** 59 , **Clay** 45 , **Top Soil** 48 , **Brown Sandy Loam** 30 , **Brown Top Soil** 26 , **Tan Sand** 21 |
| 25–50 ft | **Tan Clay** 30 , **Sand** 12 , **Brown Sand** 11 , **Clay** 9 , **Blue Clay** 8 , **Tan Sand** 8 |
| 50–100 ft | **Tan Clay** 48 , **Clay** 29 , **Sand** 19 , **Blue Clay** 21 , **Tan Sand** 19 , **Brown Sand** 12 |
| 100–200 ft | **Clay** 26 , **Tan Clay** 25 , **Sand** 24 , **Gray Sand** 19 , **Tan Sandy Clay** 17 , **Blue Clay** 17 |
| 200–300 ft | **Sand** 14 , **Blue Clay** 11 , **Clay** 10 , **Shale** 6 , **Fine Gray Sand** 5 , **Tan Clay** 5 |
| 300–500 ft | **Sand** 8 , **Blue Clay** 4 , **Clay** 7 , **Shale** 3 , **Blue Sandy Clay & Rock** 2 , **Gray Sand** 4 |
| 500–1000 ft | **Sand** 3 , **Shale** 2 , **Clay** 4 , **Sand/Clay** 1 , **Blue Clay** 2 , **Gray Sand & Layered Rock** 1 |
| 1000–5000 ft | **Shale** 2 , **Sand** 2 |

### Who drills here

*Licensed firms in state well grid 66-17, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vrana Well Service Inc.](/driller/vrana-well-service-inc.md) | 132 | 155 | 35 | 2003–2026 |
| [Maresh Drilling Co., Inc.](/driller/maresh-drilling-co-inc.md) | 69 | 200 | 50 | 2001–2026 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 63 | 10 | — | 2007–2017 |
| [Richter Well Drilling, Inc.](/driller/richter-well-drilling-inc.md) | 28 | 300 | 50 | 2003–2026 |
| [WB Southern Drilling LLC](/driller/wb-southern-drilling-llc.md) | 21 | 200 | 30 | 2023–2026 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 15 | 183 | 50 | 2013–2025 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 13 | 20 | — | 2021–2025 |
| [Vrana Well Serv. Inc.](/driller/vrana-well-serv-inc.md) | 13 | 149 | 30 | 2003–2014 |
| [Neuendorff's Water Well Service, Inc.](/driller/neuendorff-s-water-well-service-inc.md) | 8 | 395 | 20 | 2014–2025 |
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 7 | 116 | 25 | 2006–2023 |
| Vrana's Well Service Inc. | 7 | — | 25 | 2010–2012 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 6 | 305 | 25 | 2023–2026 |
| [Neuendorff's Water Well Svc., Inc.](/driller/neuendorff-s-water-well-svc-inc.md) | 6 | 126 | 35 | 2005–2012 |
| [SCI](/driller/sci.md) | 6 | — | — | 2010 |
| [Busselman Water Wells, LLC](/driller/busselman-water-wells-llc.md) | 4 | 318 | 28 | 2026 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 4 | 23 | — | 2019 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 4 | 28 | — | 2019 |
| [Jackson Water Well](/driller/jackson-water-well.md) | 4 | 280 | 27 | 2013 |
| [J & S Water Wells](/driller/j-s-water-wells.md) | 4 | 1,010 | 160 | 2013 |
| [dba Universal Drilling Services](/driller/dba-universal-drilling-services.md) | 4 | 20 | — | 2005 |
| [Cobra Water Well Drilling, LLC.](/driller/cobra-water-well-drilling-llc.md) | 3 | 145 | 25 | 2011–2024 |
| [Cascade Drilling](/driller/cascade-drilling.md) | 3 | 35 | — | 2018 |
| [Diggs Drilling Co Inc](/driller/diggs-drilling-co-inc.md) | 3 | 175 | 25 | 2009–2015 |
| [Jimmy's Well Service](/driller/jimmy-s-well-service.md) | 2 | 395 | 75 | 2024–2026 |
| [Weisinger Water Well, Inc.](/driller/weisinger-water-well-inc.md) | 2 | 1,125 | 402 | 2002 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 317 | 70.6% | 176 |
| Environmental Soil Boring | 69 | 15.4% | 13 |
| Monitor | 30 | 6.7% | 23 |
| Stock | 17 | 3.8% | 203 |
| Rig Supply | 8 | 1.8% | 520 |
| Irrigation | 3 | 0.7% | 230 |
| Public Supply | 3 | 0.7% | 1,125 |
| Fracking Supply | 1 | 0.2% | — |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 154 | 160 | 63 |
| 2010s | 178 | 127 | 71 |
| 2020s | 117 | 201 | 80 |

### The deepest reports on file

*Deepest reports in state well grid 66-17. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 257853 | 2011 | 1,200 | 169 | 400 | Public Supply |
| 18940 | 2002 | 1,125 | 189 | 402 | Public Supply |
| 320192 | 2013 | 1,010 | — | — | Rig Supply |
| 326110 | 2012 | 870 | — | — | Industrial |
| 576627 | 2021 | 700 | — | — | Domestic |
| 633889 | 2023 | 620 | 168 | 80 | Domestic |
| 167185 | 2009 | 620 | 175 | 70 | Domestic |
| 223492 | 2009 | 603 | 87 | 100 | Domestic |
| 458857 | 2017 | 600 | 136 | — | Domestic |
| 549896 | 2020 | 590 | 156 | 50 | 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 66-17?

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 [Fayette County](/county/fayette.md), [Lavaca County](/county/lavaca.md), [Fort Bend County](/county/fort-bend.md), [Colorado County](/county/colorado.md), [Brazoria County](/county/brazoria.md).

### Grids with a comparable number of reports

- [27-17](/area/27-17.md)
- [77-57](/area/77-57.md)
- [23-18](/area/23-18.md)
- [84-16](/area/84-16.md)
- [18-49](/area/18-49.md)
- [19-54](/area/19-54.md)
- [35-59](/area/35-59.md)
- [44-02](/area/44-02.md)
- [65-45](/area/65-45.md)
- [18-52](/area/18-52.md)
- [24-55](/area/24-55.md)
- [24-24](/area/24-24.md)
- [60-29](/area/60-29.md)

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Página: https://texas-water-wells.pages.dev/area/66-17/
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