# Well grid 81-17, Texas — Matagorda, Brazoria — how deep, and through what

> 125 well reports in Texas state well grid 81-17, covering Matagorda, Brazoria. Median depth 480 ft.

## Texas well grid 81-17

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Matagorda County](/county/matagorda.md) and [Brazoria County](/county/brazoria.md). **125** reports, median depth **480 ft**.

### What you will drill through in grid 81-17

*Logged in state well grid 81-17, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 69 , **Sand** 13 , **Red Clay** 5 , **Top Soil** 3 , **Soft Gray Clay** 3 , **Sandy Soil** 2 |
| 25–50 ft | **Clay** 10 , **Sand** 9 , **Clay Red & Tan** 2 , **Clay, Brown And Gray** 1 , **Clay Tan Grey** 1 , **Mix Red, Yellow And Blue Clay** 1 |
| 50–100 ft | **Sand** 32 , **Clay** 29 , **Red Clay** 6 , **Gray Clay** 2 , **Red Sand** 2 , **Grey Clay** 2 |
| 100–200 ft | **Clay** 47 , **Sand** 43 , **Red Clay** 4 , **Clay Tan & Red** 2 , **Clay With Sand Streaks** 1 , **Hard Clay, Blue And Gray** 1 |
| 200–300 ft | **Sand** 35 , **Clay** 25 , **Clay Grey** 3 , **Clay Td** 2 , **Sand, Fine And Medium** 1 , **Coarse Sand** 1 |
| 300–500 ft | **Sand** 60 , **Clay** 55 , **Clay Td** 15 , **Clay Grey** 4 , **Red Clay** 3 , **Blue Clay** 2 |
| 500–1000 ft | **Sand** 19 , **Clay** 17 , **Clay Td** 9 , **Sand Grey .012** 1 , **Clay Grey** 1 , **Sand .005** 1 |

### Who drills here

*Licensed firms in state well grid 81-17, 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) | 43 | 505 | 60 | 2015–2026 |
| [Wells Water Well Company](/driller/wells-water-well-company.md) | 11 | 460 | 25 | 2002–2008 |
| [RONNIE GOOLSBY WATER WELL](/driller/ronnie-goolsby-water-well.md) | 10 | 645 | 60 | 2002–2014 |
| [Finch Water Well](/driller/finch-water-well.md) | 8 | 538 | 40 | 2002–2022 |
| [Felder Water Well & Pump Service, LLC](/driller/felder-water-well-pump-service-llc.md) | 8 | 528 | 65 | 2011–2022 |
| [RONNIE GOOLSBY WATER WELL SERVICE](/driller/ronnie-goolsby-water-well-service.md) | 6 | 400 | 80 | 2012–2013 |
| [Chaffin Water Well Service](/driller/chaffin-water-well-service.md) | 4 | 410 | 91 | 2022–2023 |
| [AQUA WATER WELL CO.](/driller/aqua-water-well-co.md) | 4 | 180 | 80 | 2010–2014 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 4 | — | — | 2004 |
| [Chaffin Water Wells](/driller/chaffin-water-wells.md) | 3 | 540 | 150 | 2016–2017 |
| [Goolsby Water Well](/driller/goolsby-water-well.md) | 3 | 565 | 30 | 2011–2012 |
| [Chaffin Water Well Svc.](/driller/chaffin-water-well-svc.md) | 3 | 540 | 100 | 2008 |
| GOOLSBY W.W. | 2 | 460 | 60 | 2014–2015 |
| [GOOLSBY WW](/driller/goolsby-ww.md) | 2 | 440 | 80 | 2013 |
| [B & L Water Well Service,Inc.](/driller/b-l-water-well-service-inc.md) | 2 | 545 | — | 2006 |
| [Finch Water Well Service](/driller/finch-water-well-service.md) | 2 | — | 80 | 2006–2008 |
| [INDEPENDENT WATER WELL SERVICE](/driller/independent-water-well-service.md) | 1 | 123 | 25 | 2026 |
| [Brazoria Water Well](/driller/brazoria-water-well.md) | 1 | 545 | — | 2023 |
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 1 | 434 | — | 2018 |
| [Cady's Water wells](/driller/cady-s-water-wells.md) | 1 | 430 | 50 | 2017 |
| [Felder Water Well](/driller/felder-water-well.md) | 1 | 380 | 75 | 2013 |
| Felder Water Well & Pump LLC | 1 | — | 60 | 2007 |
| [J & S Water Wells](/driller/j-s-water-wells.md) | 1 | — | 70 | 2007 |
| [Lynch Water Well Drilling Inc.](/driller/lynch-water-well-drilling-inc.md) | 1 | — | 100 | 2005 |
| RONNIE GOOLSBY WATER WELL SEVICE | 1 | — | 50 | 2004 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 94 | 75.2% | 485 |
| Stock | 11 | 8.8% | 425 |
| Other | 4 | 3.2% | 540 |
| Rig Supply | 3 | 2.4% | 275 |
| Irrigation | 3 | 2.4% | 390 |
| Industrial | 3 | 2.4% | — |
| Public Supply | 2 | 1.6% | 495 |
| Environmental Soil Boring | 2 | 1.6% | — |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 35 | 495 | 30 |
| 2010s | 49 | 434 | 25 |
| 2020s | 41 | 505 | 30 |

### The deepest reports on file

*Deepest reports in state well grid 81-17. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 482065 | 2018 | 780 | 45 | 80 | Domestic |
| 701462 | 2025 | 760 | 73 | 60 | Domestic |
| 603751 | 2022 | 740 | 53 | — | Domestic |
| 420422 | 2016 | 710 | 53 | 60 | Domestic |
| 701404 | 2025 | 705 | 60 | 80 | Domestic |
| 573745 | 2021 | 705 | 53 | 50 | Domestic |
| 364018 | 2014 | 700 | 53 | 80 | Domestic |
| 37749 | 2003 | 660 | 44 | 15 | Domestic |
| 472439 | 2018 | 645 | 68 | — | Domestic |
| 268200 | 2011 | 645 | 144 | 30 | 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 81-17?

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

- [31-59](/area/31-59.md)
- [32-49](/area/32-49.md)
- [33-15](/area/33-15.md)
- [44-29](/area/44-29.md)
- [59-13](/area/59-13.md)
- [66-51](/area/66-51.md)
- [69-14](/area/69-14.md)
- [18-28](/area/18-28.md)
- [24-23](/area/24-23.md)
- [37-18](/area/37-18.md)
- [39-28](/area/39-28.md)
- [46-06](/area/46-06.md)
- [56-17](/area/56-17.md)

---

Página: https://texas-water-wells.pages.dev/area/81-17/
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