# Well grid 18-58, Texas — Collin, Denton — how deep, and through what

> 647 well reports in Texas state well grid 18-58, covering Collin, Denton, Dallas. Median depth 18 ft.

## Texas well grid 18-58

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Collin County](/county/collin.md) and [Denton County](/county/denton.md). **647** reports, median depth **18 ft**.

### What you will drill through in grid 18-58

*Logged in state well grid 18-58, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 111 , **Dark Brown Clay** 48 , **Tan Clay** 43 , **Tan Limestone** 41 , **Gray Limestone** 35 , **Gray Shale** 34 |
| 25–50 ft | **Gray Shale** 15 , **Gray Limestone** 6 , **Limestone, Hard, Gray, Moist** 2 , **Gray Dusty Chalk** 2 , **Weathered Limestone; Brown, Moist, Medium Plasticity.** 1 , **Dark Gray Shale** 1 |
| 50–100 ft | **Gray Shale** 10 , **Sandy Clay** 1 , **Shale** 1 , **Grey Shale** 1 |
| 100–200 ft | **Gray Shale** 6 , **Shale** 2 , **Gray Clay** 1 , **Shale With Limestone Stringers - Grey** 1 , **Shale - Grey** 1 , **Lime** 1 |
| 200–300 ft | **Gray Shale** 2 , **Shale With Limestone Stringers - Grey** 1 , **Shale - Grey** 1 , **Shell** 1 |
| 300–500 ft | **Sand** 6 , **Gray Shale** 3 , **Gray Shale W/Black Streaks** 1 , **Sandy Gray Shale** 1 , **Black Shale** 1 , **Gray Shale/Quartz** 1 |
| 500–1000 ft | **Sand** 32 , **Gray Shale** 22 , **Shale** 10 , **Sand And Shale** 5 , **Sandy Gray Shale** 4 , **Sand/Gray Shale** 3 |
| 1000–5000 ft | **Sand** 6 , **Gray Shale** 3 , **Lime** 3 , **Gray Shale/ Sand** 1 , **Shale** 3 , **Lime/ Gray Shale** 2 |

### Who drills here

*Licensed firms in state well grid 18-58, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 123 | 14 | — | 2002–2016 |
| [WEST Drilling](/driller/west-drilling.md) | 71 | 15 | — | 2015–2023 |
| [Total Support Services](/driller/total-support-services.md) | 59 | 20 | — | 2001–2017 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 43 | 15 | — | 2007–2026 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 43 | 20 | — | 2011–2016 |
| [W.E.S.T. Drilling](/driller/w-e-s-t-drilling.md) | 38 | 20 | — | 2002–2014 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 37 | 18 | — | 2016–2022 |
| [Earth Tech](/driller/earth-tech.md) | 28 | 780 | 25 | 2004–2019 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 18 | 15 | — | 2008–2014 |
| [SCI](/driller/sci.md) | 18 | 20 | — | 2004–2013 |
| [Environmental Logistics Company, LLC](/driller/environmental-logistics-company-llc.md) | 17 | 16 | — | 2016–2024 |
| [Groundwater Monitoring Inc.](/driller/groundwater-monitoring-inc.md) | 16 | 24 | — | 2005–2008 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 13 | 7 | — | 2004–2010 |
| [Johnson Drilling, Inc.](/driller/johnson-drilling-inc.md) | 12 | 300 | 33 | 2002–2022 |
| [Strata Core Drilling Co.](/driller/strata-core-drilling-co.md) | 11 | 20 | — | 2008–2011 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 7 | 20 | — | 2020 |
| [Pacific West](/driller/pacific-west.md) | 6 | 20 | — | 2024–2025 |
| [Barco Well Service, LP](/driller/barco-well-service-lp.md) | 5 | 1,572 | 155 | 2015–2021 |
| [Double D Drilling](/driller/double-d-drilling.md) | 4 | 845 | 17 | 2004–2023 |
| [A.L. Moser Drilling, Inc.](/driller/a-l-moser-drilling-inc.md) | 4 | 900 | 20 | 2008–2012 |
| [SLA](/driller/sla.md) | 4 | 9 | — | 2005–2012 |
| RIOMAR ENVIRONEMMTAL DRILLING | 4 | 15 | — | 2011 |
| [CM2, Inc.](/driller/cm2-inc.md) | 4 | 12 | — | 2001–2004 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 3 | 20 | — | 2023 |
| [J.L. Myers Company](/driller/j-l-myers-company.md) | 3 | 1,750 | 150 | 2008–2015 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 348 | 53.8% | 20 |
| Environmental Soil Boring | 210 | 32.5% | 10 |
| Irrigation | 42 | 6.5% | 865 |
| Closed-Loop Geothermal | 23 | 3.6% | 300 |
| Test Well | 8 | 1.2% | 20 |
| Stock | 6 | 0.9% | 900 |
| Domestic | 4 | 0.6% | 900 |
| Injection | 4 | 0.6% | — |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 267 | 19 | 463 |
| 2010s | 282 | 17 | 490 |
| 2020s | 98 | 20 | 623 |

### The deepest reports on file

*Deepest reports in state well grid 18-58. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 374898 | 2014 | 1,800 | 664 | 200 | Irrigation |
| 137374 | 2008 | 1,750 | 823 | 115 | Irrigation |
| 417981 | 2016 | 1,748 | 897 | 155 | Irrigation |
| 582741 | 2021 | 1,700 | 900 | 200 | Irrigation |
| 403459 | 2015 | 1,690 | 880 | 150 | Irrigation |
| 54222 | 2004 | 1,620 | 800 | 200 | Irrigation |
| 267324 | 2011 | 1,600 | — | 20 | Irrigation |
| 708024 | 2025 | 1,585 | 849 | 300 | Irrigation |
| 398540 | 2015 | 1,572 | 816 | 151 | Irrigation |
| 53502 | 2004 | 1,240 | 900 | 150 | Industrial |

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 18-58?

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

### Grids with a comparable number of reports

- [65-03](/area/65-03.md)
- [19-53](/area/19-53.md)
- [65-46](/area/65-46.md)
- [35-44](/area/35-44.md)
- [02-57](/area/02-57.md)
- [60-47](/area/60-47.md)
- [06-22](/area/06-22.md)
- [16-40](/area/16-40.md)
- [58-35](/area/58-35.md)
- [39-38](/area/39-38.md)
- [64-41](/area/64-41.md)
- [68-14](/area/68-14.md)
- [60-35](/area/60-35.md)

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Página: https://texas-water-wells.pages.dev/area/18-58/
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