# Well grid 68-31, Texas — Guadalupe, Bexar — how deep, and through what

> 141 well reports in Texas state well grid 68-31, covering Guadalupe, Bexar, Comal. Median depth 45 ft.

## Texas well grid 68-31

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Guadalupe County](/county/guadalupe.md) and [Bexar County](/county/bexar.md). **141** reports, median depth **45 ft**.

### What you will drill through in grid 68-31

*Logged in state well grid 68-31, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **No Recorded Lithology** 35 , **Gravel** 23 , **Top Soil** 18 , **Sandy Clay** 14 , **Clay** 12 , **Yellow Clay** 14 |
| 25–50 ft | **Clay** 11 , **Gravel** 11 , **Blue Clay** 7 , **Shale** 6 , **Yellow Clay** 5 , **Tan Clay** 4 |
| 50–100 ft | **Blue Clay** 9 , **Gravel And Gray Clay** 2 , **Gray Clay** 2 , **Very Dark Grey Shale, Laminated, Hard, Moist** 2 , **Gray Clay, Shale, Rock** 1 , **Gray Clay And Rock** 1 |
| 100–200 ft | **Gray Clay And Shale** 1 , **Gray Clay** 1 , **Light Gray Chalk** 1 , **Blue Gray Limestone H2O** 1 , **Lt Gray Limestone** 1 , **Sandy** 1 |
| 200–300 ft | **Blue Shale** 2 , **Gray Clay, Shale, Rock, Gravel W Sand Strks** 1 , **Tan Clay, Shale, Rock, Gravel** 1 , **Gray Clay And Shale** 1 , **Rock Layer Clay** 1 , **Gray Clay** 1 |
| 300–500 ft | **Gray Clay** 1 , **Shale** 1 , **Shale Rock Layer And Gray Clay** 1 , **Gray Clay Shale Layer Clay** 1 , **Shale Layer Gray Clay** 1 , **Shale``** 1 |

### Who drills here

*Licensed firms in state well grid 68-31, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 42 | 5 | — | 2012–2025 |
| [Deharde Water Well Service](/driller/deharde-water-well-service.md) | 29 | 49 | 11 | 2004–2025 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 17 | 15 | — | 2011–2016 |
| [WALKER HILL ENVIRONMENTAL INC](/driller/walker-hill-environmental-inc.md) | 11 | 60 | — | 2015 |
| [Kutscher Drilling](/driller/kutscher-drilling.md) | 9 | 200 | 2 | 2007–2018 |
| [HERBOLD DRILLING](/driller/herbold-drilling.md) | 5 | 52 | 30 | 2018–2026 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 5 | 66 | 10 | 2024 |
| [HERBOLD BROTHERS](/driller/herbold-brothers.md) | 4 | 49 | 20 | 2003–2008 |
| [Texas Southern Drilling](/driller/texas-southern-drilling.md) | 3 | 275 | — | 2025 |
| [EnviroCore, Inc.](/driller/envirocore-inc.md) | 3 | 28 | — | 2021 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 3 | 25 | — | 2020 |
| [STEVENS DRILLING & WATER WELL SERVICE](/driller/stevens-drilling-water-well-service.md) | 2 | 62 | 3 | 2020 |
| T M Johnson | 2 | 50 | — | 2015 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 1 | 40 | 5 | 2022 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 1 | 30 | — | 2013 |
| Deharde Water Well Serivce | 1 | 75 | 10 | 2007 |
| [J B Drilling](/driller/j-b-drilling.md) | 1 | 240 | 45 | 2009 |
| KUTSCHER DRILLLING LTD | 1 | 130 | 15 | 2004 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 54 | 38.3% | 50 |
| Environmental Soil Boring | 51 | 36.2% | 5 |
| Monitor | 30 | 21.3% | 50 |
| Stock | 4 | 2.8% | 50 |
| Industrial | 1 | 0.7% | 40 |
| Test Well | 1 | 0.7% | 395 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 22 | 49 | 18 |
| 2010s | 56 | 50 | 22 |
| 2020s | 63 | 5 | 23 |

### The deepest reports on file

*Deepest reports in state well grid 68-31. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 713292 | 2025 | 505 | — | — | Domestic |
| 434162 | 2016 | 500 | 257 | 3 | Domestic |
| 129101 | 2007 | 400 | 105 | — | Domestic |
| 556147 | 2020 | 395 | 80 | 15 | Domestic |
| 531120 | 2018 | 395 | — | 2 | Test Well |
| 714024 | 2025 | 275 | — | — | Domestic |
| 169948 | 2009 | 240 | 115 | 45 | Domestic |
| 185204 | 2009 | 200 | 90 | — | Domestic |
| 75656 | 2004 | 130 | 45 | 15 | Domestic |
| 713717 | 2025 | 85 | — | — | 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 68-31?

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 [Guadalupe County](/county/guadalupe.md), [Bexar County](/county/bexar.md), [Comal County](/county/comal.md), [Wilson County](/county/wilson.md).

### Grids with a comparable number of reports

- [31-41](/area/31-41.md)
- [32-64](/area/32-64.md)
- [39-16](/area/39-16.md)
- [46-01](/area/46-01.md)
- [57-36](/area/57-36.md)
- [61-10](/area/61-10.md)
- [61-31](/area/61-31.md)
- [19-38](/area/19-38.md)
- [30-56](/area/30-56.md)
- [34-40](/area/34-40.md)
- [38-42](/area/38-42.md)
- [46-40](/area/46-40.md)
- [58-40](/area/58-40.md)

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Página: https://texas-water-wells.pages.dev/area/68-31/
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