# Well grid 87-40, Texas — Hidalgo — how deep, and through what

> 102 well reports in Texas state well grid 87-40, covering Hidalgo. Median depth 41 ft.

## Texas well grid 87-40

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Hidalgo County](/county/hidalgo.md). **102** reports, median depth **41 ft**.

### What you will drill through in grid 87-40

*Logged in state well grid 87-40, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 10 , **Clayey Sand; Tan** 5 , **Soil Brown** 9 , **Silt, Light Brn, Stiff** 6 , **Silty Clay, Dk Brn, Stiff** 8 , **Sample Not Extruded** 4 |
| 25–50 ft | **Clay** 7 , **Sand-Brown** 5 , **Clay, Silty, Sandy, Stiff, Tan And Brown, Moist, With Calcar** 4 , **Sandy Brown** 4 , **Caliche** 3 , **Clay Red** 2 |
| 50–100 ft | **Sand** 4 , **Sandy Clay Brown** 3 , **Sandy/Clay** 2 , **Clay** 2 , **Sample Not Extruded** 1 , **Sand Brown** 2 |
| 100–200 ft | **Sand** 4 , **Clay** 3 , **Sand Brown** 4 , **Sandy/Clay** 2 , **Sandy Clay** 2 , **Sandy Clay Brown** 2 |
| 200–300 ft | **Sand** 3 , **Clay** 3 , **Clay Yellow** 3 , **Shale** 2 , **Sand With Clay** 1 , **Sandy Clay Grey** 1 |
| 300–500 ft | **Sand** 5 , **Clay** 4 , **Sand Brown** 3 , **Shale** 2 , **Sandy Clay Brown** 2 , **Sand/Clay** 1 |
| 500–1000 ft | **Sand** 3 , **Clay** 3 , **Clay With Sand** 1 , **Sandy/Clay** 2 , **Clay Yellow** 2 , **Shale** 2 |

### Who drills here

*Licensed firms in state well grid 87-40, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [H/ET](/driller/h-et.md) | 31 | 34 | — | 2025 |
| [Killinger's Water Well Drilling](/driller/killinger-s-water-well-drilling.md) | 21 | 185 | 40 | 2006–2025 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 18 | 34 | — | 2020 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 15 | 40 | — | 2014–2018 |
| [EnviroCore, Inc.](/driller/envirocore-inc.md) | 6 | 25 | — | 2026 |
| [ECI](/driller/eci.md) | 3 | 45 | — | 2005 |
| Mike-N-Sons All-Terrain Well & Pump Service | 1 | 200 | — | 2026 |
| BELL WATERWELL SERVICE | 1 | 654 | — | 2012 |
| [PAGE WATERWELL DRILLING](/driller/page-waterwell-drilling.md) | 1 | 600 | 100 | 2010 |
| [PAGE WATER WELL](/driller/page-water-well.md) | 1 | 600 | 100 | 2010 |
| [R. Molina Water Well Serv., Inc.](/driller/r-molina-water-well-serv-inc.md) | 1 | 880 | 60 | 2007 |
| [Pursley Drilling Ltd.](/driller/pursley-drilling-ltd.md) | 1 | 715 | 60 | 2005 |
| Harold Pursley Jr | 1 | 480 | — | 2003 |
| Enviro Core Inc. | 1 | 35 | — | 2003 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 74 | 72.5% | 34 |
| Stock | 12 | 11.8% | 480 |
| Irrigation | 9 | 8.8% | 72 |
| Domestic | 3 | 2.9% | 715 |
| Industrial | 2 | 2.0% | 670 |
| Rig Supply | 2 | 2.0% | 600 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 11 | 410 | 32 |
| 2010s | 30 | 55 | 27 |
| 2020s | 61 | 34 | 32 |

### The deepest reports on file

*Deepest reports in state well grid 87-40. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 167345 | 2007 | 880 | 76 | 60 | Domestic |
| 153421 | 2005 | 715 | 32 | 60 | Domestic |
| 326680 | 2006 | 670 | 20 | 80 | Industrial |
| 276901 | 2012 | 654 | 40 | — | Irrigation |
| 257200 | 2011 | 600 | 28 | 60 | Irrigation |
| 256054 | 2010 | 600 | 27 | 100 | Rig Supply |
| 231368 | 2010 | 600 | 20 | 100 | Rig Supply |
| 690363 | 2025 | 560 | 60 | 50 | Stock |
| 575614 | 2021 | 550 | 32 | 50 | Stock |
| 250116 | 2011 | 505 | 43 | 60 | 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 87-40?

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 [Hidalgo County](/county/hidalgo.md).

### Grids with a comparable number of reports

- [04-62](/area/04-62.md)
- [05-48](/area/05-48.md)
- [10-34](/area/10-34.md)
- [24-15](/area/24-15.md)
- [24-37](/area/24-37.md)
- [60-27](/area/60-27.md)
- [66-43](/area/66-43.md)
- [06-38](/area/06-38.md)
- [17-52](/area/17-52.md)
- [29-09](/area/29-09.md)
- [31-07](/area/31-07.md)
- [32-54](/area/32-54.md)
- [38-41](/area/38-41.md)

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Página: https://texas-water-wells.pages.dev/area/87-40/
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