# Well grid 81-11, Texas — Matagorda, Brazoria — how deep, and through what

> 138 well reports in Texas state well grid 81-11, covering Matagorda, Brazoria. Median depth 490 ft.

## Texas well grid 81-11

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Matagorda County](/county/matagorda.md) and [Brazoria County](/county/brazoria.md). **138** reports, median depth **490 ft**.

### What you will drill through in grid 81-11

*Logged in state well grid 81-11, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 88 , **Sand** 10 , **Top Soil** 7 , **Surface Soil** 7 , **Red Clay** 5 , **Black Gumbo** 3 |
| 25–50 ft | **Clay** 6 , **Sand** 4 , **Clay & Sand** 1 , **Soft Red Clay** 1 , **Grey Sandy Clay** 1 , **Grey Clay** 1 |
| 50–100 ft | **Sand** 65 , **Clay** 10 , **Clay Td** 3 , **Sand & Gravel** 2 , **Red Clay** 2 , **Coarse Sand** 1 |
| 100–200 ft | **Sand** 75 , **Clay** 71 , **Clay Td** 7 , **Fine Sand** 3 , **Clay Sand Mix** 2 , **Clay Red** 1 |
| 200–300 ft | **Clay** 75 , **Sand** 64 , **Clay Grey** 1 , **Clay W/Sand** 2 , **Blue Clay** 2 , **Streaky** 2 |
| 300–500 ft | **Sand** 66 , **Clay** 37 , **Clay Td** 27 , **Grey Clay** 2 , **Sandy Grey Clay** 2 , **Clay Grey** 1 |
| 500–1000 ft | **Clay Td** 25 , **Sand** 21 , **Clay** 11 , **Clay Grey & Brown** 1 , **Clay Grey & Red** 1 , **Sand Grey .01-.02** 1 |

### Who drills here

*Licensed firms in state well grid 81-11, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Goolsby Water Well Service LLC](/driller/goolsby-water-well-service-llc.md) | 33 | 505 | 60 | 2015–2026 |
| [RONNIE GOOLSBY WATER WELL](/driller/ronnie-goolsby-water-well.md) | 29 | 495 | 60 | 2003–2014 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 20 | 485 | 70 | 2005–2014 |
| [Finch Water Well Service](/driller/finch-water-well-service.md) | 10 | — | 75 | 2004–2007 |
| [Chaffin Water Wells](/driller/chaffin-water-wells.md) | 7 | 502 | 95 | 2016–2022 |
| [Finch Water Well](/driller/finch-water-well.md) | 6 | 520 | 80 | 2001–2025 |
| [Felder Water Well & Pump Service, LLC](/driller/felder-water-well-pump-service-llc.md) | 4 | 305 | 150 | 2007–2016 |
| [Chaffin Water Well Service](/driller/chaffin-water-well-service.md) | 3 | 220 | 100 | 2023–2024 |
| [Wells Water Well Company](/driller/wells-water-well-company.md) | 3 | 490 | 30 | 2003 |
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 2 | 531 | 100 | 2015 |
| Felder Water Well & Pump Serv. | 2 | — | 150 | 2005 |
| [AQUA WATER WELL CO.](/driller/aqua-water-well-co.md) | 2 | 165 | 80 | 2008–2010 |
| [Burleson Services, Inc.](/driller/burleson-services-inc.md) | 2 | 160 | 100 | 2005–2007 |
| [Bussell & Sons LLC](/driller/bussell-sons-llc.md) | 2 | 558 | 1,500 | 2004 |
| [J4 Water Works, LLC](/driller/j4-water-works-llc.md) | 1 | 480 | 28 | 2026 |
| [Brazoria Water Well](/driller/brazoria-water-well.md) | 1 | 460 | — | 2025 |
| [MEZA WATER WELL SERVICE](/driller/meza-water-well-service.md) | 1 | 467 | — | 2023 |
| [GWR Windmills & Water Well Services, LLC](/driller/gwr-windmills-water-well-services-llc.md) | 1 | 540 | 100 | 2023 |
| [Dale's Water Wells](/driller/dale-s-water-wells.md) | 1 | 315 | 20 | 2022 |
| [GOOLSBY WW](/driller/goolsby-ww.md) | 1 | 500 | 60 | 2013 |
| RONNIE GOOLSBY WATER WELL SERVIC | 1 | 500 | 80 | 2012 |
| RONIE GOOLSBY WATER WELL | 1 | 165 | 120 | 2010 |
| [J & S Water Wells](/driller/j-s-water-wells.md) | 1 | — | 100 | 2007 |
| [J & S Water Wells - Primo Trejo](/driller/j-s-water-wells-primo-trejo.md) | 1 | 250 | 120 | 2006 |
| [Everett Carroll Water Well Service](/driller/everett-carroll-water-well-service.md) | 1 | 100 | — | 2004 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 108 | 78.3% | 500 |
| Stock | 16 | 11.6% | 150 |
| Industrial | 5 | 3.6% | 270 |
| Irrigation | 4 | 2.9% | 220 |
| Rig Supply | 3 | 2.2% | 110 |
| Public Supply | 2 | 1.4% | 558 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 50 | 485 | 30 |
| 2010s | 65 | 500 | 30 |
| 2020s | 23 | 480 | 35 |

### The deepest reports on file

*Deepest reports in state well grid 81-11. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 637546 | 2023 | 715 | — | — | Irrigation |
| 461055 | 2017 | 620 | 36 | 80 | Domestic |
| 715392 | 2026 | 565 | 27 | 80 | Domestic |
| 457802 | 2017 | 560 | 30 | — | Domestic |
| 166612 | 2004 | 558 | 10 | 1,500 | Public Supply |
| 474488 | 2018 | 555 | 36 | — | Domestic |
| 398396 | 2015 | 555 | 29 | 30 | Domestic |
| 399556 | 2015 | 550 | 30 | 80 | Domestic |
| 352584 | 2014 | 550 | 30 | 70 | Domestic |
| 613537 | 2022 | 545 | 42 | 60 | 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 81-11?

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 [Matagorda County](/county/matagorda.md), [Brazoria County](/county/brazoria.md).

### Grids with a comparable number of reports

- [41-23](/area/41-23.md)
- [62-10](/area/62-10.md)
- [12-04](/area/12-04.md)
- [35-57](/area/35-57.md)
- [44-49](/area/44-49.md)
- [79-11](/area/79-11.md)
- [80-49](/area/80-49.md)
- [04-37](/area/04-37.md)
- [27-31](/area/27-31.md)
- [58-56](/area/58-56.md)
- [61-08](/area/61-08.md)
- [77-50](/area/77-50.md)
- [19-21](/area/19-21.md)

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Página: https://texas-water-wells.pages.dev/area/81-11/
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