# Well grid 18-49, Texas — Denton, Collin — how deep, and through what

> 453 well reports in Texas state well grid 18-49, covering Denton, Collin, Dallas. Median depth 200 ft.

## Texas well grid 18-49

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Denton County](/county/denton.md) and [Collin County](/county/collin.md). **453** reports, median depth **200 ft**.

### What you will drill through in grid 18-49

*Logged in state well grid 18-49, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Yellow Clay** 92 , **Gray Shale** 60 , **Topsoil** 43 , **Black Topsoil** 30 , **Top Soil** 27 , **Sand** 23 |
| 25–50 ft | **Gray Shale** 72 , **Sand** 28 , **Tan Sand** 10 , **Gray Clay** 7 , **Grey Shale** 6 , **Brown Silty Sand With Layers Of Clay** 5 |
| 50–100 ft | **Sand** 37 , **Gray Shale** 35 , **Shale** 12 , **Grayshale** 7 , **Grey Shale** 7 , **Sandy Shale** 7 |
| 100–200 ft | **Sand** 94 , **Gray Shale** 57 , **Shale** 11 , **Sandy Shale** 11 , **Grey Shale** 7 , **Grayshale** 6 |
| 200–300 ft | **Sand** 89 , **Gray Shale** 62 , **Shale** 17 , **Sandy Shale** 18 , **Blue Shale** 9 , **Brown Clay** 3 |
| 300–500 ft | **Sand** 43 , **Gray Shale** 30 , **Shale** 16 , **Broken Sand** 6 , **Grayshale** 4 , **Gray Shale/Sand** 3 |
| 500–1000 ft | **Sand** 20 , **Shale** 15 , **Gray Shale** 14 , **Limestone** 9 , **Sandy Shale** 9 , **Rock** 4 |
| 1000–5000 ft | **Sand** 19 , **Shale** 14 , **Sandy Shale** 6 , **Gray Shale** 5 , **Shale Break** 2 , **Shale And Sand Streaks** 2 |

### Who drills here

*Licensed firms in state well grid 18-49, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Earth Tech](/driller/earth-tech.md) | 58 | 300 | 35 | 2004–2019 |
| [Double D Drilling](/driller/double-d-drilling.md) | 42 | 280 | 25 | 2004–2026 |
| [W.E.S.T. Drilling](/driller/w-e-s-t-drilling.md) | 27 | 30 | — | 2007–2014 |
| [WEST Drilling](/driller/west-drilling.md) | 24 | 30 | — | 2015–2023 |
| [Texoma Drilling LLC](/driller/texoma-drilling-llc.md) | 18 | 280 | 15 | 2006–2013 |
| [Savage Excavation](/driller/savage-excavation.md) | 17 | 20 | — | 2024–2026 |
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 17 | 24 | — | 2007–2014 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 16 | 25 | — | 2006–2023 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 15 | 25 | — | 2011–2019 |
| [Barco Well Service, LP](/driller/barco-well-service-lp.md) | 12 | 600 | 35 | 2017–2024 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 12 | 10 | — | 2018–2020 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 10 | 25 | — | 2014–2017 |
| [Johnson Drilling, Inc.](/driller/johnson-drilling-inc.md) | 9 | 300 | — | 2002–2025 |
| [Strittmatter Irrigation](/driller/strittmatter-irrigation.md) | 9 | 980 | 20 | 2003–2016 |
| [Erwin Water Well Drilling](/driller/erwin-water-well-drilling.md) | 8 | 300 | 20 | 2002–2025 |
| [Michael Tolle](/driller/michael-tolle.md) | 8 | 300 | — | 2019–2023 |
| [SEA-LITE DRILLING CO](/driller/sea-lite-drilling-co.md) | 8 | 240 | 33 | 2003–2009 |
| [Texoma Drilling LLC Mike Bowen](/driller/texoma-drilling-llc-mike-bowen.md) | 7 | 300 | 15 | 2015–2026 |
| [Jimmy D. Miller](/driller/jimmy-d-miller.md) | 6 | 340 | 40 | 2006–2009 |
| [M5 Drilling](/driller/m5-drilling.md) | 5 | 260 | 35 | 2025–2026 |
| [Pacific West Environmental and Infrastructure](/driller/pacific-west-environmental-and-infrastructure.md) | 5 | 25 | — | 2024–2025 |
| [Walden Drilling Inc](/driller/walden-drilling-inc.md) | 5 | 160 | 16 | 2020–2024 |
| [Eagle Remediation](/driller/eagle-remediation.md) | 5 | 25 | — | 2023 |
| [J.L. Myers Company](/driller/j-l-myers-company.md) | 5 | 1,415 | 200 | 2003–2010 |
| [CM2, Inc.](/driller/cm2-inc.md) | 5 | 22 | — | 2002–2004 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 139 | 30.7% | 28 |
| Domestic | 108 | 23.8% | 280 |
| Irrigation | 77 | 17.0% | 340 |
| Environmental Soil Boring | 50 | 11.0% | 15 |
| Stock | 32 | 7.1% | 357 |
| Closed-Loop Geothermal | 30 | 6.6% | 300 |
| Public Supply | 9 | 2.0% | 1,522 |
| Test Well | 4 | 0.9% | 350 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 158 | 250 | 140 |
| 2010s | 177 | 155 | 154 |
| 2020s | 118 | 105 | 160 |

### The deepest reports on file

*Deepest reports in state well grid 18-49. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 649464 | 2023 | 1,920 | 594 | 420 | Public Supply |
| 405829 | 2015 | 1,720 | — | 350 | Irrigation |
| 705620 | 2025 | 1,715 | — | — | Public Supply |
| 516548 | 2019 | 1,700 | — | — | Irrigation |
| 189189 | 2009 | 1,635 | — | — | Domestic |
| 485452 | 2018 | 1,610 | — | — | Public Supply |
| 449193 | 2017 | 1,610 | — | — | Irrigation |
| 705642 | 2025 | 1,600 | 784 | — | Irrigation |
| 453013 | 2017 | 1,571 | 616 | 393 | Public Supply |
| 218864 | 2010 | 1,550 | 510 | 260 | 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 18-49?

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 [Denton County](/county/denton.md), [Collin County](/county/collin.md), [Dallas County](/county/dallas.md).

### Grids with a comparable number of reports

- [56-63](/area/56-63.md)
- [06-21](/area/06-21.md)
- [24-61](/area/24-61.md)
- [27-17](/area/27-17.md)
- [77-57](/area/77-57.md)
- [23-18](/area/23-18.md)
- [84-16](/area/84-16.md)
- [19-54](/area/19-54.md)
- [35-59](/area/35-59.md)
- [66-17](/area/66-17.md)
- [44-02](/area/44-02.md)
- [65-45](/area/65-45.md)
- [18-52](/area/18-52.md)

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Página: https://texas-water-wells.pages.dev/area/18-49/
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