# Well grid 65-12, Texas — Harris — how deep, and through what

> 1,748 well reports in Texas state well grid 65-12, covering Harris. Median depth 30 ft.

## Texas well grid 65-12

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Harris County](/county/harris.md). **1,748** reports, median depth **30 ft**.

### What you will drill through in grid 65-12

*Logged in state well grid 65-12, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 195 , **Clay** 143 , **No Recovery** 69 , **Sand** 75 , **Asphalt** 75 , **Sandy Clay** 55 |
| 25–50 ft | **Clay** 51 , **Sand** 52 , **Clay, Red** 33 , **Clay, Reddish Brown** 23 , **No Recovery** 16 , **Fine Grained Sand, Lt. Gray** 19 |
| 50–100 ft | **Clay** 52 , **Sand** 33 , **Clay, Brown** 9 , **Red Clay** 7 , **Silty Clay, Brown** 5 , **Clay, Red, Very Firm** 5 |
| 100–200 ft | **Sand** 71 , **Clay** 58 , **Sand, Clay** 4 , **Red Clay** 3 , **Gravel** 3 , **Sand & Rock** 2 |
| 200–300 ft | **Sand** 75 , **Clay** 60 , **Rock** 12 , **Clay-Red** 5 , **Sand-Tan-.006-.008** 4 , **Sand Rock** 3 |
| 300–500 ft | **Sand** 45 , **Clay** 31 , **Rock** 11 , **Hard Shale** 3 , **Clay-Red** 4 , **Sand .008** 3 |
| 500–1000 ft | **Sand** 5 , **Clay** 3 , **Sand .006-.008** 1 , **Clay Tan** 1 , **Gravel, Red Clay** 1 , **Gravel, Clay** 1 |
| 1000–5000 ft | **Sand** 2 , **Brown/White Clay, Sand** 1 , **Brown/White/Gray Clay** 1 , **Brown/Blue Clay** 1 , **Blue/Brown/White Clay** 1 , **Blue Clay, Sand** 1 |

### Who drills here

*Licensed firms in state well grid 65-12, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 411 | 30 | — | 2002–2026 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 290 | 25 | — | 2012–2026 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 242 | 25 | — | 2001–2026 |
| [Geothermal Drilling inc](/driller/geothermal-drilling-inc.md) | 132 | 300 | — | 2011–2016 |
| [Alpine Field Services](/driller/alpine-field-services.md) | 71 | 29 | — | 2003–2015 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 53 | 25 | — | 2002–2022 |
| [Soltek LLC](/driller/soltek-llc.md) | 33 | 26 | — | 2016–2019 |
| [Scott Drilling Inc.](/driller/scott-drilling-inc.md) | 32 | 305 | 40 | 2002–2024 |
| [Bussell & Sons LLC](/driller/bussell-sons-llc.md) | 32 | 307 | 25 | 2004–2022 |
| [Hydrogeologic/Environmental Testing](/driller/hydrogeologic-environmental-testing.md) | 27 | 58 | — | 2008–2014 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 26 | 5 | — | 2009–2015 |
| [Wel-Mat Drilling LLP](/driller/wel-mat-drilling-llp.md) | 24 | 64 | — | 2000–2017 |
| [Master Monitoring Services, Inc.](/driller/master-monitoring-services-inc.md) | 24 | 30 | — | 2005–2007 |
| [Raymond Services, Inc.](/driller/raymond-services-inc.md) | 23 | 50 | 10 | 2002–2016 |
| [Vironex Inc.](/driller/vironex-inc.md) | 22 | 30 | — | 2012 |
| [Fugro Geosciences, Inc.](/driller/fugro-geosciences-inc.md) | 18 | 75 | — | 2001–2002 |
| [City Survey](/driller/city-survey.md) | 17 | 30 | — | 2009–2021 |
| [Van and Sons Drilling Service](/driller/van-and-sons-drilling-service.md) | 17 | 40 | — | 2014–2017 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 16 | 24 | — | 2010–2013 |
| [APOLLO Environmental Strategies, Inc.](/driller/apollo-environmental-strategies-inc.md) | 15 | 60 | — | 2005–2006 |
| [Gearen Drilling](/driller/gearen-drilling.md) | 14 | 30 | 0 | 2011–2014 |
| [Fugro USA Land, Inc.](/driller/fugro-usa-land-inc.md) | 11 | 45 | — | 2018–2019 |
| [Soiltech Services Inc.](/driller/soiltech-services-inc.md) | 9 | 25 | — | 2024–2026 |
| [Almeda Water Well Service](/driller/almeda-water-well-service.md) | 9 | 390 | 150 | 2003–2023 |
| [Tolunay-Wong Engineers,Inc](/driller/tolunay-wong-engineers-inc.md) | 8 | 36 | — | 2015–2022 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 1,087 | 62.2% | 30 |
| Environmental Soil Boring | 207 | 11.8% | 13 |
| Closed-Loop Geothermal | 133 | 7.6% | 300 |
| Domestic | 89 | 5.1% | 307 |
| Injection | 67 | 3.8% | 41 |
| Test Well | 55 | 3.1% | 25 |
| Other | 44 | 2.5% | 30 |
| De-watering | 29 | 1.7% | 61 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 587 | 37 | 31 |
| 2010s | 833 | 28 | 22 |
| 2020s | 328 | 30 | 26 |

### The deepest reports on file

*Deepest reports in state well grid 65-12. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 585716 | 2021 | 1,400 | 288 | 1,705 | Public Supply |
| 532258 | 2019 | 1,300 | 305 | 1,804 | Public Supply |
| 497846 | 2018 | 1,000 | 329 | 940 | Public Supply |
| 456454 | 2017 | 785 | 330 | 120 | Public Supply |
| 336412 | 2011 | 592 | 263 | 150 | Public Supply |
| 170605 | 2004 | 480 | 199 | 250 | Irrigation |
| 163323 | 2008 | 480 | 200 | 100 | Irrigation |
| 478356 | 2017 | 460 | 180 | 120 | Public Supply |
| 461837 | 2017 | 460 | 180 | 120 | Public Supply |
| 452709 | 2017 | 460 | 180 | 120 | Public Supply |

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 65-12?

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).

### Grids with a comparable number of reports

- [65-29](/area/65-29.md)
- [33-01](/area/33-01.md)
- [32-19](/area/32-19.md)
- [33-02](/area/33-02.md)
- [45-12](/area/45-12.md)
- [65-06](/area/65-06.md)
- [33-03](/area/33-03.md)
- [45-05](/area/45-05.md)
- [58-42](/area/58-42.md)
- [65-20](/area/65-20.md)
- [33-18](/area/33-18.md)
- [23-25](/area/23-25.md)
- [65-04](/area/65-04.md)

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Página: https://texas-water-wells.pages.dev/area/65-12/
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