# Well grid 77-43, Texas — Dimmit — how deep, and through what

> 133 well reports in Texas state well grid 77-43, covering Dimmit. Median depth 30 ft.

## Texas well grid 77-43

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Dimmit County](/county/dimmit.md). **133** reports, median depth **30 ft**.

### What you will drill through in grid 77-43

*Logged in state well grid 77-43, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Ch** 19 , **Topsoil** 23 , **Sandy Ch** 17 , **Silt** 15 , **Tan Sandy Clay Dry** 5 , **Clay/Shale** 11 |
| 25–50 ft | **Siltstone** 10 , **Shale; Gray** 4 , **Clay; Gray** 3 , **Lignite; Black** 1 , **Clay; Tan/White** 1 , **Clay Gray** 2 |
| 50–100 ft | **Clay; Tan** 3 , **Sandstone; Light Gray** 3 , **Shale** 2 , **Sand; Tan** 2 , **Clay; Tan/White** 2 , **Lignite; Black** 2 |
| 100–200 ft | **Sand/Shale** 3 , **Shale** 2 , **Grey Shale** 1 , **Grey Shale/Clay** 1 , **Sand/Weak Sandstone Gray** 1 , **Lignite; Black** 1 |
| 200–300 ft | **Sand** 4 , **Sand/Shale** 4 , **Shale** 3 , **Shale & Sand Brown** 1 , **Grey Shale W/ Clay** 1 , **Shale/Sand** 1 |
| 300–500 ft | **Sand** 10 , **Shale** 4 , **Sand/Shale** 3 , **Shale & Sand Brown** 1 , **Shale & Sand W Layer Of Red Shale** 1 , **Grey Shale** 1 |
| 500–1000 ft | **Shale** 19 , **Sand** 10 , **Sand/Shale** 7 , **Grey Shale W/ Sandstone** 2 , **Sand And Shale** 2 , **Sand / Shale** 2 |
| 1000–5000 ft | **Sand (Carrizo)** 20 , **Shale** 9 , **Sand** 4 , **Carrizo Sand** 3 , **Grey Shale** 2 , **Sand/Shale** 2 |

### Who drills here

*Licensed firms in state well grid 77-43, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 30 | 25 | — | 2008–2018 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 26 | 24 | — | 2024 |
| [Dennis Drilling Company](/driller/dennis-drilling-company.md) | 26 | 1,525 | 1,000 | 2004–2014 |
| [Alamo Environmental dba Vortex Drilling](/driller/alamo-environmental-dba-vortex-drilling.md) | 19 | 27 | — | 2024 |
| [EnviroCore, Inc.](/driller/envirocore-inc.md) | 19 | 82 | — | 2012–2018 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 4 | 1,420 | 600 | 2013–2016 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 1 | 1,303 | 150 | 2026 |
| DAVENPORT DRILLING AND PUMP SERVICE | 1 | 1,234 | 1,000 | 2012 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 1 | 1,365 | 300 | 2013 |
| [Pinnergy, LTD](/driller/pinnergy-ltd.md) | 1 | 1,083 | — | 2012 |
| [Chaffin Water Well Service](/driller/chaffin-water-well-service.md) | 1 | 1,477 | 350 | 2012 |
| PRO OILFEILD SERVICES LLC | 1 | 1,220 | 250 | 2012 |
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 1 | 1,500 | — | 2012 |
| [Davenport Drilling & Pump Service](/driller/davenport-drilling-pump-service.md) | 1 | 1,540 | 200 | 2006 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 68 | 51.1% | 25 |
| Rig Supply | 23 | 17.3% | 1,525 |
| Monitor | 19 | 14.3% | 85 |
| Other | 8 | 6.0% | 25 |
| Domestic | 5 | 3.8% | 1,532 |
| Industrial | 5 | 3.8% | 1,350 |
| Fracking Supply | 3 | 2.3% | 1,327 |
| Irrigation | 2 | 1.5% | 1,380 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 12 | 1,234 | 264 |
| 2010s | 75 | 100 | 275 |
| 2020s | 46 | 25 | 323 |

### The deepest reports on file

*Deepest reports in state well grid 77-43. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 273966 | 2011 | 2,650 | 67 | — | Rig Supply |
| 221287 | 2010 | 1,840 | 224 | — | Rig Supply |
| 256413 | 2011 | 1,754 | 280 | — | Rig Supply |
| 256410 | 2011 | 1,749 | 280 | — | Rig Supply |
| 235985 | 2010 | 1,690 | 275 | — | Rig Supply |
| 235885 | 2010 | 1,683 | 273 | — | Rig Supply |
| 338649 | 2009 | 1,668 | 227 | — | Domestic |
| 235881 | 2010 | 1,665 | 273 | — | Rig Supply |
| 235878 | 2010 | 1,665 | 273 | — | Rig Supply |
| 231332 | 2010 | 1,652 | 231 | — | Rig Supply |

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 77-43?

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 [Dimmit County](/county/dimmit.md).

### Grids with a comparable number of reports

- [80-01](/area/80-01.md)
- [02-33](/area/02-33.md)
- [03-35](/area/03-35.md)
- [03-46](/area/03-46.md)
- [10-36](/area/10-36.md)
- [59-17](/area/59-17.md)
- [66-62](/area/66-62.md)
- [07-03](/area/07-03.md)
- [24-21](/area/24-21.md)
- [34-52](/area/34-52.md)
- [34-60](/area/34-60.md)
- [57-25](/area/57-25.md)
- [58-47](/area/58-47.md)

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Página: https://texas-water-wells.pages.dev/area/77-43/
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