# Well grid 65-31, Texas — Harris, Brazoria — how deep, and through what

> 699 well reports in Texas state well grid 65-31, covering Harris, Brazoria, Galveston. Median depth 30 ft.

## Texas well grid 65-31

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Harris County](/county/harris.md) and [Brazoria County](/county/brazoria.md). **699** reports, median depth **30 ft**.

### What you will drill through in grid 65-31

*Logged in state well grid 65-31, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 155 , **Concrete** 63 , **Top Soil** 57 , **Topsoil** 38 , **Sand** 35 , **Soil** 32 |
| 25–50 ft | **Clay** 22 , **Sand** 16 , **Clay, Red** 9 , **Lean Clay, (Cl) Red, Poorly Graded, Dry, Hard, Low Plasticit** 7 , **Clay, Tan** 6 , **Ft. Clay, Reddish Orange** 5 |
| 50–100 ft | **Sand** 52 , **Clay** 28 , **Red Clay** 7 , **Clay-Red** 6 , **Sand-Tan-Fine** 4 , **Tan Sand (.006)** 3 |
| 100–200 ft | **Clay** 80 , **Sand** 71 , **Clay-Red** 11 , **Red Clay** 9 , **Sand-Tan-.006-.008** 6 , **Tan Sand (.006)** 4 |
| 200–300 ft | **Sand** 35 , **Clay** 32 , **Tan Sand (.006)** 3 , **Red Clay** 2 , **Gray Clay** 2 , **Shale** 1 |
| 300–500 ft | **Sand** 95 , **Clay** 39 , **Sand Fine Brown** 1 , **Sand Coarse** 2 , **Sand-Tan-.006-.008** 3 , **Clay-Red** 2 |
| 500–1000 ft | **Sand** 6 , **Shale** 1 , **Shale,Sand** 1 , **Rock** 1 , **Clay** 1 , **Sandy Shale** 1 |
| 1000–5000 ft | **Shale** 1 , **Sand** 1 , **Sand,Shale** 1 |

### Who drills here

*Licensed firms in state well grid 65-31, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 130 | 25 | — | 2004–2025 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 88 | 28 | — | 2013–2026 |
| [O'Day Drilling Company, Inc.](/driller/o-day-drilling-company-inc.md) | 66 | 395 | 40 | 2003–2026 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 47 | 25 | — | 2003–2026 |
| [Alpine Field Services](/driller/alpine-field-services.md) | 47 | 29 | — | 2005–2015 |
| [Almeda Water Well Service](/driller/almeda-water-well-service.md) | 30 | 351 | 80 | 2003–2026 |
| [Van and Sons Drilling Service](/driller/van-and-sons-drilling-service.md) | 30 | 40 | — | 2016–2022 |
| [Cascade Drilling](/driller/cascade-drilling.md) | 22 | 28 | — | 2024 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 22 | — | — | 2005–2009 |
| [Davison Water Well Service](/driller/davison-water-well-service.md) | 18 | 345 | 35 | 2006–2021 |
| [Gearen Drilling](/driller/gearen-drilling.md) | 15 | — | 0 | 2012–2014 |
| [Fugro Geosciences, Inc.](/driller/fugro-geosciences-inc.md) | 15 | — | — | 2001–2002 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 13 | 30 | — | 2012 |
| [MEZA WATER WELL SERVICE](/driller/meza-water-well-service.md) | 12 | 400 | — | 2018–2024 |
| [ESN-South](/driller/esn-south.md) | 12 | 15 | — | 2006–2009 |
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 12 | 10 | — | 2003–2005 |
| [Discovery Acquisition Services](/driller/discovery-acquisition-services.md) | 10 | 30 | — | 2022–2026 |
| [City Survey](/driller/city-survey.md) | 9 | 15 | — | 2012–2023 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 8 | 18 | — | 2007 |
| [Fugro Consultants](/driller/fugro-consultants.md) | 7 | 83 | — | 2015–2024 |
| [Tolunay-Wong Engineers,Inc](/driller/tolunay-wong-engineers-inc.md) | 6 | 26 | — | 2017–2019 |
| [Alliance Maintenance and Services](/driller/alliance-maintenance-and-services.md) | 6 | — | — | 2014 |
| [Derrick Drilling Co.](/driller/derrick-drilling-co.md) | 5 | 472 | 42 | 2003–2010 |
| [Wel-Mat Drilling LLP](/driller/wel-mat-drilling-llp.md) | 5 | — | — | 2006–2009 |
| [Hydrex Environmental, Inc.](/driller/hydrex-environmental-inc.md) | 4 | 20 | — | 2025 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 417 | 59.7% | 25 |
| Domestic | 122 | 17.5% | 355 |
| Environmental Soil Boring | 66 | 9.4% | 22 |
| Test Well | 34 | 4.9% | 25 |
| Other | 23 | 3.3% | 20 |
| Public Supply | 12 | 1.7% | 360 |
| Irrigation | 9 | 1.3% | 415 |
| Industrial | 6 | 0.9% | 376 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 196 | 30 | 55 |
| 2010s | 272 | 32 | 140 |
| 2020s | 231 | 30 | 18 |

### The deepest reports on file

*Deepest reports in state well grid 65-31. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 154480 | 2008 | 1,200 | 169 | 1,511 | Public Supply |
| 316985 | 2013 | 733 | 105 | 40 | Public Supply |
| 200436 | 2009 | 624 | 130 | 80 | Domestic |
| 491637 | 2018 | 590 | 150 | 60 | Other |
| 162902 | 2006 | 582 | 134 | 60 | Domestic |
| 460787 | 2017 | 536 | 150 | 250 | Irrigation |
| 311949 | 2013 | 525 | 150 | 150 | Domestic |
| 258176 | 2011 | 525 | 170 | 40 | Domestic |
| 220570 | 2008 | 517 | 150 | 80 | Industrial |
| 603168 | 2022 | 515 | 150 | 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 65-31?

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 [Harris County](/county/harris.md), [Brazoria County](/county/brazoria.md), [Galveston County](/county/galveston.md), [Houston County](/county/houston.md), [Garza County](/county/garza.md).

### Grids with a comparable number of reports

- [68-12](/area/68-12.md)
- [88-50](/area/88-50.md)
- [30-35](/area/30-35.md)
- [87-55](/area/87-55.md)
- [58-17](/area/58-17.md)
- [43-38](/area/43-38.md)
- [79-08](/area/79-08.md)
- [28-52](/area/28-52.md)
- [28-35](/area/28-35.md)
- [57-15](/area/57-15.md)
- [31-55](/area/31-55.md)
- [32-34](/area/32-34.md)
- [59-54](/area/59-54.md)

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Página: https://texas-water-wells.pages.dev/area/65-31/
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