# Well grid 66-10, Texas — Fayette, Colorado — how deep, and through what

> 214 well reports in Texas state well grid 66-10, covering Fayette, Colorado, Victoria. Median depth 240 ft.

## Texas well grid 66-10

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Fayette County](/county/fayette.md) and [Colorado County](/county/colorado.md). **214** reports, median depth **240 ft**.

### What you will drill through in grid 66-10

*Logged in state well grid 66-10, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Tan Clay** 37 , **Clay** 28 , **Top Soil** 24 , **White Clay** 15 , **Topsoil** 16 , **Brown Clay** 14 |
| 25–50 ft | **Tan Clay** 21 , **Clay** 9 , **White Clay** 9 , **Blue Clay** 9 , **Sand** 7 , **Rock** 6 |
| 50–100 ft | **Blue Clay** 19 , **Tan Clay** 19 , **Sand** 13 , **Clay** 10 , **White Clay** 11 , **Tan Sand** 4 |
| 100–200 ft | **Sand** 18 , **Clay** 21 , **Blue Clay** 18 , **Rock** 12 , **Tan Clay** 9 , **Shale** 7 |
| 200–300 ft | **Sand** 20 , **Clay** 12 , **Shale** 7 , **Gray Sand** 6 , **Rock** 4 , **Blue Clay** 5 |
| 300–500 ft | **Sand** 5 , **Clay** 7 , **Shale** 5 , **White Clay** 4 , **Mc Shale** 3 , **Tan Clay** 3 |
| 500–1000 ft | **Sand** 6 , **Clay** 6 , **Shale** 4 , **Sand Mix Shale** 2 , **Clay & Shale** 2 , **Shale & Clay** 1 |

### Who drills here

*Licensed firms in state well grid 66-10, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Maresh Drilling Co., Inc.](/driller/maresh-drilling-co-inc.md) | 27 | 280 | 50 | 2001–2023 |
| [Vrana Well Service Inc.](/driller/vrana-well-service-inc.md) | 22 | 190 | 25 | 2003–2021 |
| [Neuendorff's Water Well Service, Inc.](/driller/neuendorff-s-water-well-service-inc.md) | 21 | 205 | 35 | 2014–2026 |
| [Richter Well Drilling, Inc.](/driller/richter-well-drilling-inc.md) | 20 | 376 | 50 | 2004–2026 |
| [Neuendorff's Water Well Svc., Inc.](/driller/neuendorff-s-water-well-svc-inc.md) | 19 | 190 | 15 | 2003–2013 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 11 | 820 | 120 | 2008–2022 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 8 | 265 | 20 | 2022–2026 |
| [Busselman Water Wells, LLC](/driller/busselman-water-wells-llc.md) | 7 | 205 | 20 | 2024–2026 |
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 6 | 158 | 50 | 2004–2022 |
| [Diggs Drilling Co Inc](/driller/diggs-drilling-co-inc.md) | 6 | 235 | 25 | 2013–2016 |
| [Bluebonnet Water Wells](/driller/bluebonnet-water-wells.md) | 4 | 175 | 20 | 2025–2026 |
| [Jackson Waterwell](/driller/jackson-waterwell.md) | 4 | 260 | 40 | 2014–2017 |
| [Vrana Well Serv. Inc.](/driller/vrana-well-serv-inc.md) | 4 | 140 | 25 | 2004–2014 |
| [Deharde Water Well Service](/driller/deharde-water-well-service.md) | 4 | 280 | 60 | 2011 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 3 | 258 | 30 | 2016–2024 |
| [Cobra Water Well Drilling, LLC.](/driller/cobra-water-well-drilling-llc.md) | 3 | 200 | 15 | 2023–2024 |
| [WB Southern Drilling LLC](/driller/wb-southern-drilling-llc.md) | 3 | 260 | 30 | 2023–2024 |
| [WASHINGTON CO WATER WELL DRILLING](/driller/washington-co-water-well-drilling.md) | 3 | 272 | 25 | 2017–2021 |
| [Jackson Water Well](/driller/jackson-water-well.md) | 3 | 120 | 30 | 2019–2020 |
| Vrana's Well Service Inc. | 3 | — | 25 | 2010–2012 |
| [Leeper Water Well](/driller/leeper-water-well.md) | 3 | — | 20 | 2008 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 2 | 10 | — | 2021 |
| [J & S Water Wells - Tomas Salinas](/driller/j-s-water-wells-tomas-salinas.md) | 2 | — | 130 | 2011 |
| [Rangnow Water Well](/driller/rangnow-water-well.md) | 2 | 270 | 20 | 2009 |
| [Rangnow Water Well Service](/driller/rangnow-water-well-service.md) | 2 | 210 | 20 | 2007–2009 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 171 | 79.9% | 240 |
| Stock | 22 | 10.3% | 280 |
| Rig Supply | 11 | 5.1% | 670 |
| Irrigation | 4 | 1.9% | 260 |
| Industrial | 4 | 1.9% | — |
| Environmental Soil Boring | 2 | 0.9% | 10 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 54 | 210 | 94 |
| 2010s | 91 | 275 | 116 |
| 2020s | 69 | 215 | 96 |

### The deepest reports on file

*Deepest reports in state well grid 66-10. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 433176 | 2016 | 1,150 | 140 | 100 | Rig Supply |
| 433167 | 2016 | 1,100 | 170 | 60 | Rig Supply |
| 449278 | 2017 | 850 | 150 | 120 | Rig Supply |
| 463511 | 2017 | 820 | 140 | 100 | Rig Supply |
| 311041 | 2013 | 680 | 140 | 80 | Domestic |
| 390355 | 2015 | 670 | 115 | 120 | Rig Supply |
| 628716 | 2022 | 650 | 80 | 120 | Rig Supply |
| 521657 | 2019 | 630 | 200 | 70 | Stock |
| 446108 | 2017 | 620 | 180 | — | Stock |
| 311727 | 2013 | 620 | 136 | 100 | 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 66-10?

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), [Colorado County](/county/colorado.md), [Victoria County](/county/victoria.md), [Waller County](/county/waller.md), [Harris County](/county/harris.md).

### Grids with a comparable number of reports

- [19-25](/area/19-25.md)
- [27-06](/area/27-06.md)
- [68-52](/area/68-52.md)
- [34-29](/area/34-29.md)
- [41-08](/area/41-08.md)
- [43-42](/area/43-42.md)
- [57-03](/area/57-03.md)
- [14-60](/area/14-60.md)
- [19-27](/area/19-27.md)
- [24-16](/area/24-16.md)
- [24-47](/area/24-47.md)
- [56-07](/area/56-07.md)
- [58-54](/area/58-54.md)

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Página: https://texas-water-wells.pages.dev/area/66-10/
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