# Well grid 21-35, Texas — Knox, Haskell — how deep, and through what

> 272 well reports in Texas state well grid 21-35, covering Knox, Haskell. Median depth 63 ft.

## Texas well grid 21-35

A 7.5-minute quadrangle of the Texas state well grid, mostly in [Knox County](/county/knox.md) and [Haskell County](/county/haskell.md). **272** reports, median depth **63 ft**.

### What you will drill through in grid 21-35

*Logged in state well grid 21-35, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **White Sandy Clay** 85 , **Red Sandy Clay** 52 , **Top Soil** 44 , **Caliche** 37 , **Brown Clay** 29 , **White Sand Clay** 28 |
| 25–50 ft | **Coarse H2O Sand** 51 , **Red Bed** 35 , **Good Gravel** 32 , **Red Bed & Blue Shale** 24 , **H2O Sand** 23 , **Sand Rock** 20 |
| 50–100 ft | **Red Bed** 60 , **Red Bed & Blue Shale** 30 , **Red Clay** 12 , **Good Gravel** 10 , **Red Bed & Blue Shell** 10 , **Red Clay Streak** 9 |

### Who drills here

*Licensed firms in state well grid 21-35, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [LEONARD DRILLING LLC](/driller/leonard-drilling-llc.md) | 221 | 66 | 110 | 2003–2026 |
| [JB Drilling](/driller/jb-drilling.md) | 7 | 50 | — | 2022–2024 |
| [LEONARD WATER SERVICES](/driller/leonard-water-services.md) | 4 | 71 | 160 | 2015–2022 |
| Leonard Driling LLC | 4 | 56 | 14 | 2005–2008 |
| Leonard Dirlling LLC | 3 | 68 | 370 | 2010 |
| [Water Well Drilling and Service](/driller/water-well-drilling-and-service.md) | 2 | 80 | — | 2014 |
| [Gillispie Drilling](/driller/gillispie-drilling.md) | 1 | 80 | — | 2025 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Irrigation | 146 | 53.7% | 69 |
| Domestic | 88 | 32.4% | 53 |
| Stock | 30 | 11.0% | 61 |
| Test Well | 4 | 1.5% | 80 |
| Public Supply | 4 | 1.5% | 72 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 97 | 66 | 38 |
| 2010s | 129 | 62 | 38 |
| 2020s | 46 | 65 | 41 |

### The deepest reports on file

*Deepest reports in state well grid 21-35. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 552953 | 2020 | 2,160 | 47 | 140 | Irrigation |
| 398183 | 2015 | 81 | 27 | — | Domestic |
| 387253 | 2014 | 81 | 35 | 2 | Stock |
| 377500 | 2014 | 81 | 49 | — | Domestic |
| 728692 | 2026 | 80 | — | — | Test Well |
| 713669 | 2025 | 80 | 50 | — | Stock |
| 711083 | 2025 | 80 | — | — | Test Well |
| 636076 | 2023 | 80 | 45 | 15 | Stock |
| 387405 | 2014 | 80 | 55 | 70 | Irrigation |
| 379677 | 2014 | 80 | — | — | Public Supply |

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 21-35?

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 [Knox County](/county/knox.md), [Haskell County](/county/haskell.md).

### Grids with a comparable number of reports

- [13-54](/area/13-54.md)
- [66-27](/area/66-27.md)
- [66-34](/area/66-34.md)
- [07-05](/area/07-05.md)
- [59-21](/area/59-21.md)
- [77-08](/area/77-08.md)
- [10-61](/area/10-61.md)
- [28-33](/area/28-33.md)
- [19-46](/area/19-46.md)
- [43-30](/area/43-30.md)
- [21-34](/area/21-34.md)
- [58-52](/area/58-52.md)
- [69-24](/area/69-24.md)

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Página: https://texas-water-wells.pages.dev/area/21-35/
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