# Well grid 66-27, Texas — Colorado, Lavaca — how deep, and through what

> 274 well reports in Texas state well grid 66-27, covering Colorado, Lavaca. Median depth 200 ft.

## Texas well grid 66-27

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Colorado County](/county/colorado.md) and [Lavaca County](/county/lavaca.md). **274** reports, median depth **200 ft**.

### What you will drill through in grid 66-27

*Logged in state well grid 66-27, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Sand** 57 , **Yellow Clay** 40 , **Top-Soil** 41 , **Red Clay** 35 , **Clay** 32 , **Topsoil** 32 |
| 25–50 ft | **Sand** 47 , **Clay** 16 , **Red Clay** 14 , **White Clay** 11 , **Red & White Clay** 10 , **Tan Clay** 7 |
| 50–100 ft | **Sand** 73 , **Clay** 24 , **Red Clay** 24 , **White Clay** 14 , **Tan Clay** 17 , **Clay & Rock** 12 |
| 100–200 ft | **Sand** 105 , **Rock** 55 , **Clay** 31 , **Red Clay** 28 , **Tan Clay** 17 , **Red & White Clay** 18 |
| 200–300 ft | **Sand** 36 , **Rock** 28 , **Clay** 10 , **Tan Clay** 7 , **Red & White Clay** 6 , **Red Clay** 6 |
| 300–500 ft | **Sand** 6 , **Clay** 3 , **Rock** 3 , **Bn Clay** 2 , **Fine Gray Sand** 1 , **Fine Gray Sand W/Shale** 1 |
| 500–1000 ft | **Sand** 1 , **Clay** 1 |

### Who drills here

*Licensed firms in state well grid 66-27, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Skutca Water Well](/driller/skutca-water-well.md) | 54 | 199 | 40 | 2001–2016 |
| [Neuendorff's Water Well Svc., Inc.](/driller/neuendorff-s-water-well-svc-inc.md) | 50 | 200 | 35 | 2003–2014 |
| [Neuendorff's Water Well Service, Inc.](/driller/neuendorff-s-water-well-service-inc.md) | 44 | 185 | 40 | 2015–2025 |
| [Vrana Well Service Inc.](/driller/vrana-well-service-inc.md) | 23 | 175 | 50 | 2005–2022 |
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 22 | 160 | 35 | 2005–2025 |
| [Cobra Water Well Drilling, LLC.](/driller/cobra-water-well-drilling-llc.md) | 14 | 270 | 90 | 2011–2025 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 10 | 180 | 50 | 2002–2022 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 6 | 245 | 40 | 2020–2024 |
| [Maresh Drilling Co., Inc.](/driller/maresh-drilling-co-inc.md) | 4 | 220 | 50 | 2008–2023 |
| [Burleson Services, Inc.](/driller/burleson-services-inc.md) | 4 | 260 | 70 | 2006–2010 |
| [Busselman Water Wells, LLC](/driller/busselman-water-wells-llc.md) | 3 | 205 | 35 | 2024–2026 |
| Envirtech Drilling Services | 3 | — | — | 2014 |
| [Joe Ferguson Water Well Drilling, Inc.](/driller/joe-ferguson-water-well-drilling-inc.md) | 3 | 208 | — | 2010–2011 |
| [Kight Water Well Service](/driller/kight-water-well-service.md) | 2 | 123 | 40 | 2025 |
| [Ballard Water Well Co. LLC](/driller/ballard-water-well-co-llc.md) | 2 | 205 | 50 | 2014–2018 |
| [Ricky Bonds Water Wells](/driller/ricky-bonds-water-wells.md) | 2 | 255 | 50 | 2015–2016 |
| [Vrana Well Serv. Inc.](/driller/vrana-well-serv-inc.md) | 2 | 160 | 25 | 2014 |
| [B & L Water Well Service,Inc.](/driller/b-l-water-well-service-inc.md) | 2 | 632 | 90 | 2013–2014 |
| [Ball Drilling Company](/driller/ball-drilling-company.md) | 2 | 230 | 60 | 2012–2013 |
| [Evans Drilling](/driller/evans-drilling.md) | 2 | 220 | 60 | 2012 |
| [Deharde Water Well Service](/driller/deharde-water-well-service.md) | 2 | 240 | 80 | 2011 |
| [GMG Water Well Drilling, LLC](/driller/gmg-water-well-drilling-llc.md) | 1 | 200 | 20 | 2025 |
| [Zavala Drilling, CO](/driller/zavala-drilling-co.md) | 1 | 260 | — | 2022 |
| [MARAL DRILLING](/driller/maral-drilling.md) | 1 | 230 | 35 | 2019 |
| [AQUA STAR LLC](/driller/aqua-star-llc.md) | 1 | 178 | 35 | 2018 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 219 | 79.9% | 198 |
| Rig Supply | 27 | 9.9% | 260 |
| Stock | 20 | 7.3% | 185 |
| Monitor | 3 | 1.1% | — |
| Other | 2 | 0.7% | 300 |
| Irrigation | 2 | 0.7% | 144 |
| Industrial | 1 | 0.4% | — |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 103 | 199 | 85 |
| 2010s | 110 | 205 | 89 |
| 2020s | 61 | 198 | 94 |

### The deepest reports on file

*Deepest reports in state well grid 66-27. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 357669 | 2014 | 632 | 120 | 90 | Rig Supply |
| 371739 | 2014 | 360 | 90 | 100 | Rig Supply |
| 70274 | 2005 | 357 | 112 | 55 | Domestic |
| 365794 | 2014 | 340 | 90 | 90 | Rig Supply |
| 348772 | 2013 | 340 | 149 | — | Rig Supply |
| 217333 | 2010 | 340 | — | — | Rig Supply |
| 567986 | 2021 | 338 | 151 | 50 | Domestic |
| 314706 | 2013 | 338 | 112 | 80 | Domestic |
| 478386 | 2018 | 335 | 158 | — | Domestic |
| 389631 | 2015 | 329 | 140 | 40 | 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 66-27?

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 [Colorado County](/county/colorado.md), [Lavaca County](/county/lavaca.md).

### Grids with a comparable number of reports

- [60-40](/area/60-40.md)
- [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)
- [66-34](/area/66-34.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)

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Página: https://texas-water-wells.pages.dev/area/66-27/
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