# Well grid 81-01, Texas — Matagorda — how deep, and through what

> 500 well reports in Texas state well grid 81-01, covering Matagorda. Median depth 155 ft.

## Texas well grid 81-01

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Matagorda County](/county/matagorda.md). **500** reports, median depth **155 ft**.

### What you will drill through in grid 81-01

*Logged in state well grid 81-01, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 155 , **No Recovery** 67 , **Sand** 60 , **Red Clay** 42 , **Top Soil** 38 , **Concrete** 34 |
| 25–50 ft | **Sand** 43 , **Clay** 45 , **Red Clay** 14 , **Fine Sand** 4 , **Yellow Clay** 4 , **Fine Red Sand** 3 |
| 50–100 ft | **Sand** 87 , **Clay** 67 , **Red Clay** 15 , **Sand And Gravel** 6 , **Sand .006** 4 , **Sand .005-.006** 2 |
| 100–200 ft | **Clay** 124 , **Sand** 135 , **Clay Td** 17 , **Red Clay** 12 , **Blue Clay** 11 , **Sand And Gravel** 7 |
| 200–300 ft | **Clay** 42 , **Sand** 39 , **Blue Clay** 6 , **Clay Grey** 3 , **Red Clay** 3 , **Sandy Clay** 2 |
| 300–500 ft | **Sand** 101 , **Clay** 57 , **Clay Td** 36 , **Blue Clay** 10 , **Red Clay** 8 , **Coarse White Sand** 5 |
| 500–1000 ft | **Sand** 7 , **Clay** 5 , **Clay Td** 5 , **Sand .006** 1 , **Sand & Clay** 1 , **Clay/Sand** 1 |
| 1000–5000 ft | **Clay** 1 , **Sand** 1 |

### Who drills here

*Licensed firms in state well grid 81-01, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 92 | 8 | — | 2017–2026 |
| [Goolsby Water Well Service LLC](/driller/goolsby-water-well-service-llc.md) | 56 | 420 | 50 | 2015–2026 |
| [Finch Water Well](/driller/finch-water-well.md) | 47 | 435 | 60 | 2001–2025 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 32 | 20 | — | 2009–2015 |
| [AQUA WATER WELL CO.](/driller/aqua-water-well-co.md) | 22 | 180 | 80 | 2007–2015 |
| [Felder Water Well & Pump Service, LLC](/driller/felder-water-well-pump-service-llc.md) | 20 | 197 | 300 | 2013–2024 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 20 | 15 | — | 2004–2022 |
| [Wells Water Well Company](/driller/wells-water-well-company.md) | 20 | 450 | 20 | 2002–2008 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 16 | 15 | — | 2008–2025 |
| [RONNIE GOOLSBY WATER WELL](/driller/ronnie-goolsby-water-well.md) | 14 | 410 | 60 | 2002–2015 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 14 | 385 | 80 | 2004–2013 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 13 | 11 | — | 2015–2017 |
| [Burleson Services, Inc.](/driller/burleson-services-inc.md) | 12 | 190 | 100 | 2004–2008 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 9 | 25 | — | 2019 |
| [Felder Water Well](/driller/felder-water-well.md) | 9 | 433 | 150 | 2010–2013 |
| [Chaffin Water Well Service](/driller/chaffin-water-well-service.md) | 8 | 200 | 300 | 2003–2024 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 8 | 250 | 80 | 2006–2023 |
| [Ellis Drilling and Service Co.](/driller/ellis-drilling-and-service-co.md) | 8 | 170 | 350 | 2009–2016 |
| [Finch Water Well Service](/driller/finch-water-well-service.md) | 8 | 452 | 60 | 2004–2008 |
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 7 | 390 | 80 | 2007–2025 |
| [Master Monitoring Services, Inc.](/driller/master-monitoring-services-inc.md) | 6 | 12 | — | 2006 |
| [City Survey](/driller/city-survey.md) | 5 | 20 | — | 2015–2018 |
| [Goolsby Water Well](/driller/goolsby-water-well.md) | 5 | 304 | 60 | 2001–2013 |
| [Chaffin Water Wells](/driller/chaffin-water-wells.md) | 4 | 181 | 75 | 2012–2019 |
| [GOOLSBY WW](/driller/goolsby-ww.md) | 4 | 455 | 70 | 2013 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 155 | 31.0% | 440 |
| Environmental Soil Boring | 104 | 20.8% | 8 |
| Monitor | 92 | 18.4% | 20 |
| Irrigation | 59 | 11.8% | 185 |
| Stock | 38 | 7.6% | 165 |
| Rig Supply | 23 | 4.6% | 180 |
| Industrial | 19 | 3.8% | 250 |
| Test Well | 6 | 1.2% | 15 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 128 | 180 | 35 |
| 2010s | 189 | 170 | 25 |
| 2020s | 183 | 25 | 60 |

### The deepest reports on file

*Deepest reports in state well grid 81-01. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 693776 | 2025 | 1,300 | 77 | 2,023 | Public Supply |
| 639404 | 2023 | 730 | 72 | — | Irrigation |
| 549985 | 2020 | 685 | 50 | — | Irrigation |
| 341780 | 2013 | 643 | 22 | 150 | Irrigation |
| 586555 | 2021 | 640 | 80 | — | Domestic |
| 686502 | 2025 | 605 | 70 | 100 | Industrial |
| 571858 | 2021 | 585 | 70 | 40 | Domestic |
| 219947 | 2010 | 564 | 15 | — | Irrigation |
| 596251 | 2021 | 552 | 50 | — | Domestic |
| 546730 | 2020 | 545 | 45 | 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 81-01?

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).

### Grids with a comparable number of reports

- [66-05](/area/66-05.md)
- [28-48](/area/28-48.md)
- [59-64](/area/59-64.md)
- [60-62](/area/60-62.md)
- [16-39](/area/16-39.md)
- [27-28](/area/27-28.md)
- [80-02](/area/80-02.md)
- [83-01](/area/83-01.md)
- [57-23](/area/57-23.md)
- [45-21](/area/45-21.md)
- [27-12](/area/27-12.md)
- [28-49](/area/28-49.md)
- [64-33](/area/64-33.md)

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Página: https://texas-water-wells.pages.dev/area/81-01/
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