# Well grid 65-30, Texas — Brazoria, Harris — how deep, and through what

> 1,316 well reports in Texas state well grid 65-30, covering Brazoria, Harris, Fort Bend. Median depth 320 ft.

## Texas well grid 65-30

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Brazoria County](/county/brazoria.md) and [Harris County](/county/harris.md). **1,316** reports, median depth **320 ft**.

### What you will drill through in grid 65-30

*Logged in state well grid 65-30, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 594 , **Top Soil** 294 , **Soil** 200 , **Sand** 170 , **Topsoil** 141 , **Top** 84 |
| 25–50 ft | **Clay** 156 , **Sand** 124 , **Red Clay** 25 , **Clay-Red** 23 , **Silty Clay, Reddish Brown** 22 , **Silty Clay, Lt. Gray** 18 |
| 50–100 ft | **Sand** 340 , **Clay** 296 , **Clay-Red** 51 , **Red Clay** 27 , **Sand-Tan-.006-.008** 23 , **Sand-Tan-Fine Sand-Tan-.006-.008** 17 |
| 100–200 ft | **Clay** 416 , **Sand** 320 , **Clay-Red** 58 , **Red Clay** 47 , **Sand-Tan-.006-.008** 20 , **Tan Sand (.006)** 12 |
| 200–300 ft | **Sand** 287 , **Clay** 232 , **Red Clay** 28 , **Clay-Red** 26 , **Sand-Tan-.006-.008** 13 , **Tan Sand (.005-.006)** 9 |
| 300–500 ft | **Sand** 375 , **Clay** 167 , **Red Clay** 19 , **Clay-Red** 19 , **Sand-Gray-.006-.008** 22 , **Sand-Tan-.006-.008** 16 |
| 500–1000 ft | **Sand** 47 , **Clay** 17 , **Sandy Clay** 3 , **Sand-Gray-.006-.008** 4 , **Clay-Red** 4 , **Gray Sand (.005-.006)** 3 |
| 1000–5000 ft | **Clay** 3 , **Sand** 2 , **Clay & Sand** 1 |

### Who drills here

*Licensed firms in state well grid 65-30, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 277 | 362 | 35 | 2003–2026 |
| [Almeda Water Well Service](/driller/almeda-water-well-service.md) | 193 | 362 | 60 | 2003–2026 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 166 | 40 | — | 2004–2026 |
| [MEZA WATER WELL SERVICE](/driller/meza-water-well-service.md) | 98 | 350 | 40 | 2015–2026 |
| [Davison Water Well Service](/driller/davison-water-well-service.md) | 70 | 335 | 40 | 2004–2024 |
| [Derrick Drilling Co.](/driller/derrick-drilling-co.md) | 63 | 340 | 32 | 2003–2013 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 57 | 25 | — | 2003–2023 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 54 | 20 | — | 2012–2025 |
| [Alpine Field Services](/driller/alpine-field-services.md) | 23 | 20 | — | 2005–2016 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 21 | 25 | — | 2002–2017 |
| [GWR Windmills & Water Well Services, LLC](/driller/gwr-windmills-water-well-services-llc.md) | 16 | 335 | 60 | 2019–2026 |
| [Scott Drilling Inc.](/driller/scott-drilling-inc.md) | 16 | 360 | 50 | 2002–2018 |
| [Petra Environmental](/driller/petra-environmental.md) | 14 | 16 | — | 2003–2005 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 12 | 20 | — | 2010–2012 |
| [Miller Drilling Co.](/driller/miller-drilling-co.md) | 12 | 110 | — | 2011 |
| [Fugro Geosciences, Inc.](/driller/fugro-geosciences-inc.md) | 12 | 32 | — | 2002–2004 |
| [Gearen Drilling](/driller/gearen-drilling.md) | 11 | 25 | 0 | 2013–2023 |
| [Van and Sons Drilling Service](/driller/van-and-sons-drilling-service.md) | 11 | 40 | — | 2015–2018 |
| [A-1 Water Well Drilling service](/driller/a-1-water-well-drilling-service.md) | 10 | 330 | 30 | 2003–2020 |
| [Alamo1 Drilling](/driller/alamo1-drilling.md) | 9 | 55 | — | 2025–2026 |
| [RONNIE GOOLSBY WATER WELL](/driller/ronnie-goolsby-water-well.md) | 7 | 185 | 30 | 2007–2015 |
| [Master Monitoring Services, Inc.](/driller/master-monitoring-services-inc.md) | 7 | 3 | — | 2006 |
| [WALKER HILL ENVIRONMENTAL INC](/driller/walker-hill-environmental-inc.md) | 6 | — | — | 2015 |
| [B & L Water Well Service,Inc.](/driller/b-l-water-well-service-inc.md) | 6 | 525 | — | 2011–2012 |
| [Universal Drilling Services of Texas, LLC](/driller/universal-drilling-services-of-texas-llc.md) | 6 | 50 | — | 2008 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 746 | 56.7% | 348 |
| Monitor | 358 | 27.2% | 35 |
| Environmental Soil Boring | 68 | 5.2% | 16 |
| Other | 30 | 2.3% | 35 |
| Industrial | 30 | 2.3% | 332 |
| Irrigation | 25 | 1.9% | 363 |
| Public Supply | 23 | 1.7% | 444 |
| Test Well | 21 | 1.6% | 28 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1970s | 1 | — | 75 |
| 2000s | 482 | 312 | 158 |
| 2010s | 541 | 330 | 155 |
| 2020s | 292 | 320 | 150 |

### The deepest reports on file

*Deepest reports in state well grid 65-30. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 392675 | 2015 | 1,500 | 209 | 2,014 | Public Supply |
| 62188 | 2005 | 1,112 | 674 | 1,829 | Public Supply |
| 37135 | 2003 | 855 | 190 | 350 | Irrigation |
| 48768 | 2003 | 850 | 190 | 350 | Irrigation |
| 238433 | 2010 | 715 | 80 | 80 | Domestic |
| 34187 | 2003 | 707 | 209 | — | Public Supply |
| 219753 | 2010 | 632 | 184 | 30 | Domestic |
| 151408 | 2005 | 624 | 190 | 30 | Domestic |
| 610901 | 2022 | 620 | 205 | 40 | Domestic |
| 651563 | 2023 | 617 | — | — | 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 65-30?

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 [Brazoria County](/county/brazoria.md), [Harris County](/county/harris.md), [Fort Bend County](/county/fort-bend.md), [Galveston County](/county/galveston.md), [Houston County](/county/houston.md).

### Grids with a comparable number of reports

- [65-16](/area/65-16.md)
- [60-59](/area/60-59.md)
- [43-37](/area/43-37.md)
- [32-17](/area/32-17.md)
- [65-15](/area/65-15.md)
- [33-11](/area/33-11.md)
- [23-26](/area/23-26.md)
- [65-24](/area/65-24.md)
- [07-56](/area/07-56.md)
- [65-38](/area/65-38.md)
- [60-51](/area/60-51.md)
- [27-63](/area/27-63.md)
- [32-28](/area/32-28.md)

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Página: https://texas-water-wells.pages.dev/area/65-30/
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