# Well grid 81-02, Texas — Matagorda, Brazoria — how deep, and through what

> 184 well reports in Texas state well grid 81-02, covering Matagorda, Brazoria. Median depth 400 ft.

## Texas well grid 81-02

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Matagorda County](/county/matagorda.md) and [Brazoria County](/county/brazoria.md). **184** reports, median depth **400 ft**.

### What you will drill through in grid 81-02

*Logged in state well grid 81-02, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 99 , **Sand** 17 , **Red Clay** 13 , **Surface Soil** 11 , **Top Soil** 9 , **Topsoil** 6 |
| 25–50 ft | **Sand** 16 , **Clay** 12 , **Red Clay** 2 , **Fat Clay (Ch): Reddish Yellow, Dry** 1 , **Red Clay With Sand Streaks** 1 , **Brown Clay And Sand Mix** 1 |
| 50–100 ft | **Sand** 85 , **Clay** 42 , **Red Clay** 6 , **Sand .010** 4 , **Clay Td** 4 , **Gravel** 2 |
| 100–200 ft | **Clay** 81 , **Sand** 74 , **Clay Td** 6 , **Red Clay** 6 , **Sand .006** 4 , **Coarse Sand** 5 |
| 200–300 ft | **Clay** 48 , **Sand** 35 , **Red Clay** 4 , **Blue Clay** 3 , **Sand, Fine Medium And Coarse** 2 , **Gray Clay And Shale** 2 |
| 300–500 ft | **Sand** 75 , **Clay** 44 , **Clay Td** 37 , **Blue Clay** 6 , **Sandy Clay** 3 , **Coarse Sand** 3 |
| 500–1000 ft | **Sand** 14 , **Clay Td** 9 , **Clay** 6 , **Meduim Coarse Water Sand** 2 , **Sand .006-.008** 1 , **Td** 1 |

### Who drills here

*Licensed firms in state well grid 81-02, 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) | 39 | 425 | 60 | 2015–2026 |
| [Finch Water Well](/driller/finch-water-well.md) | 32 | 400 | 80 | 2003–2025 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 25 | 385 | 60 | 2004–2014 |
| [RONNIE GOOLSBY WATER WELL](/driller/ronnie-goolsby-water-well.md) | 18 | 405 | 60 | 2002–2014 |
| [Felder Water Well & Pump Service, LLC](/driller/felder-water-well-pump-service-llc.md) | 9 | 422 | 100 | 2005–2020 |
| [Finch Water Well Service](/driller/finch-water-well-service.md) | 9 | — | 60 | 2004–2009 |
| [Wells Water Well Company](/driller/wells-water-well-company.md) | 8 | 420 | 20 | 2002–2005 |
| [AQUA WATER WELL CO.](/driller/aqua-water-well-co.md) | 7 | 160 | 70 | 2008–2015 |
| [Brazoria Water Well](/driller/brazoria-water-well.md) | 5 | 400 | — | 2022–2025 |
| [Chaffin Water Well Service](/driller/chaffin-water-well-service.md) | 4 | 200 | 170 | 2023–2026 |
| [Joe Ferguson Drilling, Inc.](/driller/joe-ferguson-drilling-inc.md) | 3 | 150 | — | 2003–2004 |
| [GOOLSBY WW](/driller/goolsby-ww.md) | 2 | 405 | 80 | 2013 |
| [Goolsby Water Well](/driller/goolsby-water-well.md) | 2 | 480 | 150 | 2001–2013 |
| [J & S Water Wells](/driller/j-s-water-wells.md) | 2 | 250 | 80 | 2007–2008 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 2 | 20 | — | 2008 |
| Wellco Drilling and Service Co. | 2 | 675 | — | 2003 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 1 | 30 | — | 2025 |
| [Dale's Water Wells](/driller/dale-s-water-wells.md) | 1 | 220 | 40 | 2022 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 1 | 165 | — | 2023 |
| [GWR Windmills & Water Well Services, LLC](/driller/gwr-windmills-water-well-services-llc.md) | 1 | 165 | 100 | 2021 |
| [Gotcher Water Wells](/driller/gotcher-water-wells.md) | 1 | 193 | 85 | 2015 |
| Goolsby Water Well Services | 1 | 410 | 60 | 2015 |
| [B & L Water Well Service,Inc.](/driller/b-l-water-well-service-inc.md) | 1 | 192 | — | 2013 |
| Geothermal Advantage | 1 | 300 | — | 2013 |
| [City Survey](/driller/city-survey.md) | 1 | — | — | 2012 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 132 | 71.7% | 410 |
| Stock | 29 | 15.8% | 125 |
| Irrigation | 7 | 3.8% | 200 |
| Industrial | 6 | 3.3% | 150 |
| Rig Supply | 5 | 2.7% | 185 |
| Monitor | 3 | 1.6% | 20 |
| Other | 1 | 0.5% | 30 |
| Closed-Loop Geothermal | 1 | 0.5% | 300 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 68 | 370 | 38 |
| 2010s | 61 | 395 | 41 |
| 2020s | 55 | 400 | 53 |

### The deepest reports on file

*Deepest reports in state well grid 81-02. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 36964 | 2003 | 675 | 57 | — | Domestic |
| 36956 | 2003 | 672 | — | — | Domestic |
| 668926 | 2024 | 645 | 85 | 20 | Domestic |
| 490734 | 2018 | 645 | 62 | 20 | Domestic |
| 727346 | 2026 | 640 | 57 | 20 | Domestic |
| 631034 | 2023 | 620 | 65 | 40 | Domestic |
| 484999 | 2018 | 620 | 67 | — | Domestic |
| 524802 | 2019 | 615 | 55 | — | Domestic |
| 520028 | 2019 | 615 | 54 | — | Domestic |
| 427658 | 2016 | 615 | 49 | 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 81-02?

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

- [87-37](/area/87-37.md)
- [12-06](/area/12-06.md)
- [23-42](/area/23-42.md)
- [23-50](/area/23-50.md)
- [34-39](/area/34-39.md)
- [56-14](/area/56-14.md)
- [56-16](/area/56-16.md)
- [67-29](/area/67-29.md)
- [79-25](/area/79-25.md)
- [34-54](/area/34-54.md)
- [32-55](/area/32-55.md)
- [34-23](/area/34-23.md)
- [80-27](/area/80-27.md)

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Página: https://texas-water-wells.pages.dev/area/81-02/
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