# Well grid 33-02, Texas — Dallas, Collin — how deep, and through what

> 1,882 well reports in Texas state well grid 33-02, covering Dallas, Collin, Denton. Median depth 17 ft.

## Texas well grid 33-02

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Dallas County](/county/dallas.md) and [Collin County](/county/collin.md). **1,882** reports, median depth **17 ft**.

### What you will drill through in grid 33-02

*Logged in state well grid 33-02, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 246 , **Dark Brown Clay** 159 , **Tan Weathered Limestone** 128 , **Tan Limestone** 131 , **Gray Limestone** 113 , **Brown Clay** 95 |
| 25–50 ft | **Gray Shale** 8 , **Shale, Gray** 8 , **Grey Limestone** 5 , **Limestone Gray** 7 , **Grey Shaley Clay** 4 , **Shale** 4 |
| 50–100 ft | **Gray Shale** 4 , **Blue Shale** 2 , **Grey Shale** 1 , **Gray Shale, Firm With Soft Streaks** 1 , **Shale** 1 , **Gray Clay And Shale** 1 |
| 100–200 ft | **Gray Shale** 6 , **Gray Shale/Lime** 2 , **Sand** 2 , **Sandy Shale** 2 , **Sand And Shale Mixed** 1 , **Grey Shale** 1 |
| 200–300 ft | **Gray Shale** 3 , **Shale** 2 , **Shale -Limestone** 1 , **Gray Shale & Lime Layers** 1 , **Shale With Limestone Stringers - Grey** 1 , **Sand** 1 |
| 300–500 ft | **Shale Grey** 1 , **Grey Shale** 1 , **Gray Shale/Lime** 1 , **Gray Shale** 1 , **Sand** 1 , **Bluesh Clay And Shale** 1 |
| 500–1000 ft | **Sand** 12 , **Gray Shale** 7 , **Gray Shale/Sand** 6 , **Shale** 5 , **Tan Watersand** 5 , **Broken Sand** 3 |
| 1000–5000 ft | **Sand** 4 , **Gray Shale** 3 , **Limestone** 3 , **Sandy Shale** 3 , **Shale** 3 , **Tan Limestone** 1 |

### Who drills here

*Licensed firms in state well grid 33-02, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 292 | 17 | — | 2007–2026 |
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 231 | 8 | — | 2002–2016 |
| [WEST Drilling](/driller/west-drilling.md) | 120 | 20 | — | 2015–2026 |
| [Wel-Mat Drilling LLP](/driller/wel-mat-drilling-llp.md) | 120 | 30 | — | 2002–2018 |
| [W.E.S.T. Drilling](/driller/w-e-s-t-drilling.md) | 115 | 20 | — | 2001–2014 |
| [Environmental Logistics Company, LLC](/driller/environmental-logistics-company-llc.md) | 98 | 11 | — | 2017–2026 |
| [Groundwater Monitoring Inc.](/driller/groundwater-monitoring-inc.md) | 86 | 15 | — | 2004–2008 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 83 | 20 | — | 2014–2023 |
| [SCI](/driller/sci.md) | 75 | 20 | — | 2004–2022 |
| [RIOMAR DRILLING INC](/driller/riomar-drilling-inc.md) | 54 | 11 | — | 2013–2020 |
| [Texplor of Dallas, Inc.](/driller/texplor-of-dallas-inc.md) | 41 | 26 | — | 2003–2016 |
| [Total Support Services](/driller/total-support-services.md) | 41 | 20 | — | 2001–2012 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 37 | 20 | — | 2011–2019 |
| [DIXIE DRILLING](/driller/dixie-drilling.md) | 36 | 15 | — | 2002–2005 |
| [GM Enterprises](/driller/gm-enterprises.md) | 34 | 20 | — | 2004–2007 |
| [Johnson Drilling, Inc.](/driller/johnson-drilling-inc.md) | 29 | 400 | — | 2003–2023 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 29 | 20 | — | 2017–2022 |
| [Strata Core Drilling Co.](/driller/strata-core-drilling-co.md) | 26 | 15 | — | 2008–2011 |
| [RIOMAR ENVIRONMENTAL DRILLING](/driller/riomar-environmental-drilling.md) | 25 | 12 | — | 2012 |
| [ESN-South](/driller/esn-south.md) | 22 | 14 | — | 2005–2009 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 15 | 12 | — | 2023–2025 |
| [CM2, Inc.](/driller/cm2-inc.md) | 15 | 14 | — | 2001–2004 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 13 | 20 | — | 2020–2021 |
| [RQ Drilling](/driller/rq-drilling.md) | 13 | 12 | — | 2013–2018 |
| [Cascade Technical Services](/driller/cascade-technical-services.md) | 12 | 19 | — | 2017 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 1,109 | 58.9% | 20 |
| Environmental Soil Boring | 555 | 29.5% | 10 |
| Injection | 112 | 6.0% | 19 |
| Closed-Loop Geothermal | 69 | 3.7% | 300 |
| Irrigation | 19 | 1.0% | 820 |
| Domestic | 7 | 0.4% | 860 |
| Test Well | 5 | 0.3% | 20 |
| Stock | 4 | 0.2% | 1,780 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 806 | 17 | 15 |
| 2010s | 759 | 16 | 15 |
| 2020s | 317 | 18 | 13 |

### The deepest reports on file

*Deepest reports in state well grid 33-02. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 395825 | 2015 | 1,873 | 605 | 115 | Stock |
| 667391 | 2024 | 1,780 | 717 | 300 | Stock |
| 297114 | 2011 | 1,740 | 750 | 38 | Irrigation |
| 346544 | 2013 | 1,705 | 548 | 77 | Irrigation |
| 619320 | 2022 | 1,696 | — | — | Public Supply |
| 619478 | 2022 | 1,680 | 700 | 10 | Domestic |
| 348546 | 2013 | 1,680 | — | — | Irrigation |
| 427796 | 2016 | 1,660 | — | — | Irrigation |
| 409292 | 2015 | 1,160 | — | 25 | Stock |
| 175171 | 2009 | 975 | — | 70 | Stock |

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 33-02?

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), [Collin County](/county/collin.md), [Denton County](/county/denton.md), [Hunt County](/county/hunt.md), [Rains County](/county/rains.md).

### Grids with a comparable number of reports

- [45-06](/area/45-06.md)
- [45-07](/area/45-07.md)
- [45-13](/area/45-13.md)
- [32-22](/area/32-22.md)
- [65-29](/area/65-29.md)
- [33-01](/area/33-01.md)
- [32-19](/area/32-19.md)
- [45-12](/area/45-12.md)
- [65-06](/area/65-06.md)
- [33-03](/area/33-03.md)
- [65-12](/area/65-12.md)
- [45-05](/area/45-05.md)
- [58-42](/area/58-42.md)

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Página: https://texas-water-wells.pages.dev/area/33-02/
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