# Water wells in Zapata County, Texas — how deep, and through what

> 215 well reports filed in Zapata County since 2001. Median depth 26 ft, water struck at 105 ft, median yield 30 gpm.

## Water wells in Zapata County, Texas

**215** well reports on file. The median well here was taken to **26 ft** and struck water at **105 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Zapata County

*Logged in Zapata County, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 31 , **Tan Reddish Sandy Clay** 32 , **Surface Sand** 24 , **Topsoil** 10 , **Sandy Clay,Light Brn** 10 , **Brown Silty Clay** 8 |
| 25–50 ft | **Shaley Clay, Gray, Very Stiff, High Plasticity, Dry, No Petr** 6 , **Clay** 5 , **Blue Clay** 3 , **Clayey Sand, Fine Grained, Poorly Graded, Gray, Dense, Dry, ** 2 , **Shaley Clay, Gray, Hard, Very Plastic, Dry, No Petroleum Hyd** 2 , **Shaley Clay, Greenish Gray, Hard, Very Plastic, Dry, No Petr** 2 |
| 50–100 ft | **Clay** 10 , **Shale** 6 , **Sand** 5 , **Sand With Clay** 5 , **Sand, Fine Grained, Poorly Graded, Greenish Gray, Dense, Wet** 3 , **Hard Sand** 3 |
| 100–200 ft | **Clay** 25 , **Sand** 13 , **Hard Rock** 9 , **Shale** 8 , **Sand With Clay** 5 , **Clay W/Sand** 5 |
| 200–300 ft | **Sand** 19 , **Clay** 14 , **Shale** 7 , **Clay With Sand** 8 , **Hard Rock** 6 , **Sand With Clay** 5 |
| 300–500 ft | **Sand** 36 , **Clay** 22 , **Sand With Clay** 13 , **Shale** 5 , **Clay With Sand** 5 , **Gray Shale** 3 |
| 500–1000 ft | **Sand** 6 , **Clay** 4 , **Sand With Clay** 3 , **Clay With Sand** 1 , **Clay W/ Sand** 2 , **Hard Sand** 2 |

The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.

### Who drills in Zapata County

*Licensed firms in Zapata County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 60 | 15 | — | 2008–2012 |
| [R. MOLINA WATER WELL SERVICE, INC.](/driller/r-molina-water-well-service-inc.md) | 40 | 500 | 40 | 2003–2015 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 18 | 30 | — | 2020–2022 |
| [Jones Environmental Drilling, Inc.](/driller/jones-environmental-drilling-inc.md) | 16 | 5 | — | 2004 |
| [JEDI Drilling Contractors](/driller/jedi-drilling-contractors.md) | 10 | 6 | — | 2006 |
| [Gainco, Inc.](/driller/gainco-inc.md) | 8 | — | — | 2012 |
| [I Deal Drilling,LLC](/driller/i-deal-drilling-llc.md) | 7 | 14 | — | 2024–2025 |
| [Dennis Drilling Company](/driller/dennis-drilling-company.md) | 7 | 735 | 15 | 2012–2023 |
| [Talon/LPE](/driller/talon-lpe.md) | 7 | — | — | 2012 |
| [Palacios Water Well Drilling](/driller/palacios-water-well-drilling.md) | 6 | 500 | 30 | 2019–2024 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 6 | 75 | — | 2023 |
| [Cinco E Inc.](/driller/cinco-e-inc.md) | 5 | 600 | 16 | 2001–2014 |
| [Woods Drilling Co.](/driller/woods-drilling-co.md) | 5 | 640 | 11 | 2003–2005 |
| [EnviroCore, Inc.](/driller/envirocore-inc.md) | 4 | 26 | — | 2010–2025 |
| [Strata Core Services, LLC](/driller/strata-core-services-llc.md) | 4 | 49 | — | 2018 |
| [Front Range Drilling, Inc.](/driller/front-range-drilling-inc.md) | 3 | 24 | — | 2014 |
| [R. Molina Water Well Serv., Inc.](/driller/r-molina-water-well-serv-inc.md) | 3 | 360 | 12 | 2006–2009 |
| [T Molina Water Well LLC](/driller/t-molina-water-well-llc.md) | 2 | 530 | 15 | 2018 |
| [Pipe Creek Water Well, Inc.](/driller/pipe-creek-water-well-inc.md) | 2 | 820 | 10 | 2011–2012 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 1 | 385 | 17 | 2022 |
| [Triple C. Drilling](/driller/triple-c-drilling.md) | 1 | 500 | — | 2010 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 100 | 46.5% | 15 |
| Domestic | 51 | 23.7% | 500 |
| Monitor | 43 | 20.0% | 60 |
| Stock | 15 | 7.0% | 500 |
| Irrigation | 2 | 0.9% | 500 |
| Industrial | 2 | 0.9% | 1,186 |
| Test Well | 2 | 0.9% | 640 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 111 | 15 | 110 |
| 2010s | 64 | 49 | 59 |
| 2020s | 40 | 40 | 145 |

### The deepest reports on file

*Deepest reports in Zapata County. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 302223 | 2012 | 1,424 | 350 | — | Domestic |
| 296805 | 2012 | 1,186 | 340 | — | Industrial |
| 437943 | 2016 | 1,000 | — | — | Domestic |
| 3414 | 2001 | 880 | 142 | 60 | Domestic |
| 308628 | 2012 | 820 | — | — | Stock |
| 275682 | 2011 | 760 | 65 | 35 | Domestic |
| 427892 | 2016 | 735 | 256 | — | Domestic |
| 255799 | 2011 | 700 | 59 | 25 | Domestic |
| 17261 | 2003 | 700 | — | — | Industrial |
| 254366 | 2008 | 660 | 188 | 30 | Domestic |

Every figure on this site is a **median**, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.

### Drilling a well in Zapata County?

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).

### Counties with a comparable number of reports

- [Stephens](/county/stephens.md)
- [Baylor](/county/baylor.md)
- [Presidio](/county/presidio.md)
- [Red River](/county/red-river.md)
- [Willacy](/county/willacy.md)
- [Archer](/county/archer.md)
- [Kent](/county/kent.md)
- [Cottle](/county/cottle.md)
- [Rains](/county/rains.md)
- [Foard](/county/foard.md)
- [Hudspeth](/county/hudspeth.md)
- [Franklin](/county/franklin.md)
- [Terrell](/county/terrell.md)

A sliding window, not a ranking. [Every county](/county.md).

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Página: https://texas-water-wells.pages.dev/county/zapata/
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