# Well grid 33-12, Texas — Dallas, Rockwall — how deep, and through what

> 433 well reports in Texas state well grid 33-12, covering Dallas, Rockwall, Kaufman. Median depth 25 ft.

## Texas well grid 33-12

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Dallas County](/county/dallas.md) and [Rockwall County](/county/rockwall.md). **433** reports, median depth **25 ft**.

### What you will drill through in grid 33-12

*Logged in state well grid 33-12, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 65 , **Tan Clay** 30 , **Brown Clay** 23 , **Black Clay** 22 , **Dark Gray Clay** 18 , **Tan Sand** 16 |
| 25–50 ft | **Gray Shale** 12 , **Shale** 11 , **Sand** 4 , **Dark Tan Clay** 3 , **Gray Clay** 3 , **Clay Shaley Tan Gray** 3 |
| 50–100 ft | **Shale** 6 , **Gray Shale** 2 , **Blue Shale** 2 , **Blueshell** 1 , **Gravel** 1 , **Sndy Tan Clay** 1 |
| 100–200 ft | **Blueshell** 1 |
| 200–300 ft | **Blueshell** 1 , **Blueshell Sand** 1 |
| 500–1000 ft | **Gray Shale** 1 |
| 1000–5000 ft | **Sand** 1 |

### Who drills here

*Licensed firms in state well grid 33-12, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [WEST Drilling](/driller/west-drilling.md) | 51 | 24 | — | 2015–2023 |
| [Environmental Logistics Company, LLC](/driller/environmental-logistics-company-llc.md) | 36 | 25 | — | 2019–2026 |
| [W.E.S.T. Drilling](/driller/w-e-s-t-drilling.md) | 35 | 30 | — | 2001–2014 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 27 | 25 | — | 2008–2024 |
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 27 | 20 | — | 2004–2016 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 21 | 25 | — | 2015–2023 |
| [Groundwater Monitoring Inc.](/driller/groundwater-monitoring-inc.md) | 17 | 30 | — | 2005–2008 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 15 | 25 | — | 2011–2016 |
| [Texplor of Dallas, Inc.](/driller/texplor-of-dallas-inc.md) | 15 | 30 | — | 2011–2014 |
| [Total Support Services](/driller/total-support-services.md) | 15 | 25 | — | 2002–2012 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 14 | 21 | — | 2017–2020 |
| [R.L.Wagstaff Co.](/driller/r-l-wagstaff-co.md) | 13 | 51 | 30 | 2005–2016 |
| [DIXIE DRILLING](/driller/dixie-drilling.md) | 12 | 18 | — | 2003 |
| [Eagle Remediation](/driller/eagle-remediation.md) | 11 | 25 | — | 2020–2024 |
| Gropundwater Monitoring Inc. | 11 | 20 | — | 2005 |
| [SCI](/driller/sci.md) | 10 | 30 | — | 2003–2009 |
| Liberty Drilling | 8 | 40 | 6 | 2006–2012 |
| [XL Drilling, Inc.](/driller/xl-drilling-inc.md) | 8 | 20 | — | 2006 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 7 | 25 | — | 2024–2025 |
| [Gedco drilling and coring inc](/driller/gedco-drilling-and-coring-inc.md) | 7 | 55 | — | 2020 |
| [Talon Drilling, LP](/driller/talon-drilling-lp.md) | 6 | 25 | — | 2007–2009 |
| [Strata Core, Inc.](/driller/strata-core-inc.md) | 5 | 22 | — | 2003 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 4 | 30 | — | 2024 |
| [Johnson Drilling, Inc.](/driller/johnson-drilling-inc.md) | 4 | — | — | 2007–2011 |
| [SLA](/driller/sla.md) | 4 | 16 | — | 2011 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 255 | 58.9% | 25 |
| Environmental Soil Boring | 132 | 30.5% | 18 |
| Irrigation | 20 | 4.6% | 51 |
| Closed-Loop Geothermal | 8 | 1.8% | 300 |
| Test Well | 7 | 1.6% | 26 |
| Industrial | 4 | 0.9% | 51 |
| Other | 2 | 0.5% | 30 |
| Domestic | 2 | 0.5% | 300 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 168 | 25 | 19 |
| 2010s | 155 | 25 | 20 |
| 2020s | 110 | 25 | 17 |

### The deepest reports on file

*Deepest reports in state well grid 33-12. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 571705 | 2021 | 1,300 | — | 23 | Stock |
| 447104 | 2017 | 300 | — | — | Closed-Loop Geothermal |
| 425986 | 2016 | 300 | — | — | Closed-Loop Geothermal |
| 318870 | 2012 | 300 | — | — | Closed-Loop Geothermal |
| 230739 | 2010 | 300 | 180 | 25 | Domestic |
| 542987 | 2020 | 105 | 42 | — | Monitor |
| 87072 | 2006 | 69 | — | — | Irrigation |
| 433802 | 2016 | 65 | — | — | Industrial |
| 57515 | 2005 | 65 | — | — | Monitor |
| 144041 | 2008 | 64 | 25 | 47 | Irrigation |

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 33-12?

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 [Dallas County](/county/dallas.md), [Rockwall County](/county/rockwall.md), [Kaufman County](/county/kaufman.md).

### Grids with a comparable number of reports

- [69-08](/area/69-08.md)
- [80-17](/area/80-17.md)
- [07-01](/area/07-01.md)
- [35-50](/area/35-50.md)
- [19-34](/area/19-34.md)
- [66-12](/area/66-12.md)
- [68-15](/area/68-15.md)
- [68-16](/area/68-16.md)
- [57-19](/area/57-19.md)
- [67-25](/area/67-25.md)
- [68-38](/area/68-38.md)
- [69-50](/area/69-50.md)
- [31-54](/area/31-54.md)

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Página: https://texas-water-wells.pages.dev/area/33-12/
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