# Well grid 68-38, Texas — Bexar — how deep, and through what

> 432 well reports in Texas state well grid 68-38, covering Bexar. Median depth 20 ft.

## Texas well grid 68-38

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Bexar County](/county/bexar.md). **432** reports, median depth **20 ft**.

### What you will drill through in grid 68-38

*Logged in state well grid 68-38, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Concrete** 27 , **Base Material** 17 , **Clay, Little Silt, Trace Coarse Quartz Gravel, Trace Sand, T** 18 , **Fill Materials. Mostly Gravel And Clay, Brown And Gray, Mois** 14 , **Dark Brown Fat Clay** 12 , **At 4.5 Ft Bgs: Strong Brown.** 11 |
| 25–50 ft | **Gray Shale** 9 , **Rock** 5 , **Shale** 4 , **Saa** 1 , **Clay, Stiff, Few Calcite Seams, Black Carbon Staining** 3 , **Clay, Dark Grey, Hard.** 3 |
| 50–100 ft | **Rock** 8 , **Sand** 6 , **Shale** 3 , **Blue Shale** 3 , **Blue Clay** 2 , **Gray Sand** 2 |
| 100–200 ft | **Rock** 8 , **Sand** 4 , **Shale** 5 , **Clay** 3 , **Sand & Sandy Clay** 1 , **Shale & Sand** 1 |
| 200–300 ft | **Shale** 3 , **Clay** 2 , **Sand And Shale** 1 , **Rock** 1 , **Soft Shale** 1 , **Soft Shale W/ Sand Streaks (Td)** 1 |
| 300–500 ft | **Sand/Clay/Shale** 2 , **Eagle Ford** 1 , **Buda Limestone** 1 , **Sand** 1 |
| 500–1000 ft | **Sand** 1 , **Shale** 1 , **Delrio Clay** 1 , **Georgetown** 1 , **Edwards** 1 , **Sandy Shale** 1 |
| 1000–5000 ft | **Sand** 1 |

### Who drills here

*Licensed firms in state well grid 68-38, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 223 | 20 | — | 2005–2025 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 41 | 25 | — | 2019–2023 |
| [Austin Geo-Logic](/driller/austin-geo-logic.md) | 22 | 20 | — | 2018–2026 |
| [Alamo Environmental dba Vortex Drilling](/driller/alamo-environmental-dba-vortex-drilling.md) | 19 | 10 | — | 2023–2024 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 17 | 25 | — | 2020–2025 |
| [Hydrogeologic/Environmental Testing](/driller/hydrogeologic-environmental-testing.md) | 10 | 42 | — | 2009 |
| [Alamo1 Drilling](/driller/alamo1-drilling.md) | 9 | 20 | — | 2025–2026 |
| [BEST DRILLING SERVICES, INC.](/driller/best-drilling-services-inc.md) | 9 | 10 | — | 2020 |
| [Total Support Services](/driller/total-support-services.md) | 9 | 80 | — | 2002 |
| [Advanced Drilling Systems, Inc.](/driller/advanced-drilling-systems-inc.md) | 7 | 35 | — | 2020 |
| [Tolunay-Wong Engineers,Inc](/driller/tolunay-wong-engineers-inc.md) | 6 | 15 | — | 2020 |
| [Geoprojects International, Inc.](/driller/geoprojects-international-inc.md) | 6 | 2 | — | 2011 |
| [Hydrogeologic/Engineering of Texas, Inc.](/driller/hydrogeologic-engineering-of-texas-inc.md) | 6 | 82 | — | 2006 |
| [Prospector Drilling & Tool Co., Inc.](/driller/prospector-drilling-tool-co-inc.md) | 6 | 39 | — | 2005 |
| [TERO DRILLING LLC](/driller/tero-drilling-llc.md) | 5 | 25 | — | 2022–2024 |
| [HERBOLD BROTHERS](/driller/herbold-brothers.md) | 5 | 155 | 15 | 2005–2009 |
| [dba Universal Drilling Services](/driller/dba-universal-drilling-services.md) | 5 | 40 | — | 2004 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 3 | 30 | — | 2022 |
| [Pacific West Environmental and Infrastructure](/driller/pacific-west-environmental-and-infrastructure.md) | 2 | 20 | — | 2024–2025 |
| [Dennis Drilling Company](/driller/dennis-drilling-company.md) | 2 | 562 | — | 2019 |
| [STEVENS DRILLING & WATER WELL SERVICE](/driller/stevens-drilling-water-well-service.md) | 2 | 247 | 6 | 2015–2017 |
| [Prospector Drilling and Tool Co., Inc.](/driller/prospector-drilling-and-tool-co-inc.md) | 2 | 40 | — | 2005 |
| [HERBOLD DRILLING](/driller/herbold-drilling.md) | 1 | 285 | 30 | 2025 |
| [Underground Water Resources, LLC](/driller/underground-water-resources-llc.md) | 1 | 850 | 14 | 2024 |
| [Johnson Drilling, Inc.](/driller/johnson-drilling-inc.md) | 1 | 500 | — | 2023 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 251 | 58.1% | 15 |
| Monitor | 151 | 35.0% | 35 |
| Domestic | 16 | 3.7% | 160 |
| Test Well | 5 | 1.2% | 30 |
| Stock | 3 | 0.7% | 500 |
| Closed-Loop Geothermal | 2 | 0.5% | 500 |
| Irrigation | 2 | 0.5% | 1,200 |
| Industrial | 2 | 0.5% | 200 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 69 | 42 | 24 |
| 2010s | 225 | 20 | 49 |
| 2020s | 138 | 20 | 26 |

### The deepest reports on file

*Deepest reports in state well grid 68-38. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 516521 | 2019 | 1,200 | 68 | — | Irrigation |
| 673263 | 2024 | 850 | 67 | 14 | Stock |
| 516854 | 2019 | 562 | 54 | — | Domestic |
| 135693 | 2008 | 540 | — | — | Domestic |
| 516856 | 2019 | 522 | 54 | — | Domestic |
| 656008 | 2023 | 500 | — | — | Closed-Loop Geothermal |
| 361554 | 2014 | 500 | — | — | Stock |
| 709278 | 2025 | 285 | 78 | 30 | Domestic |
| 456061 | 2017 | 247 | 65 | — | Domestic |
| 620210 | 2022 | 216 | 210 | — | Domestic |

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 68-38?

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 [Bexar County](/county/bexar.md).

### Grids with a comparable number of reports

- [19-34](/area/19-34.md)
- [66-12](/area/66-12.md)
- [68-15](/area/68-15.md)
- [33-12](/area/33-12.md)
- [68-16](/area/68-16.md)
- [57-19](/area/57-19.md)
- [67-25](/area/67-25.md)
- [69-50](/area/69-50.md)
- [31-54](/area/31-54.md)
- [10-13](/area/10-13.md)
- [29-34](/area/29-34.md)
- [20-05](/area/20-05.md)
- [28-37](/area/28-37.md)

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Página: https://texas-water-wells.pages.dev/area/68-38/
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