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

> 410 well reports filed in Lamar County since 2001. Median depth 25 ft, water struck at 20 ft, median yield 15 gpm.

## Water wells in Lamar County, Texas

**410** well reports on file. The median well here was taken to **25 ft** and struck water at **20 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Lamar County

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

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Tan Clay** 60 , **Clay** 37 , **Brown Sandy Clay** 20 , **Concrete** 18 , **Hard Tan Clay** 18 , **Tan Sandy Clay** 15 |
| 25–50 ft | **Grey Shale** 15 , **Gray Shale** 9 , **Blue Shale** 4 , **-Gray, Moist** 4 , **Color Change To Dark Gray, Very Dense, Very Stiff, Fine Sand** 4 , **Shale** 3 |
| 50–100 ft | **Blue Shale** 5 , **Friable Iron Sandstone** 2 , **Fine Red Sand** 2 , **Red Clay** 2 , **Blue Rock** 2 , **Sand** 2 |
| 100–200 ft | **Sand** 6 , **Rock** 5 , **Blue Shale** 5 , **Shale** 5 , **Shale W/ Sand Strks** 2 , **Lt Gray** 1 |
| 200–300 ft | **Shale** 3 , **White Shale** 1 , **Light Blue Shale** 1 , **Gray Turquoise / Tan Shale** 1 , **Light Blue To Bronze Shale** 1 , **Gray To Light Blue Shale** 1 |
| 300–500 ft | **Brown Clay** 1 , **Red Clay** 1 , **Red And Blue Clay** 1 |

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 Lamar County

*Licensed firms in Lamar County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 76 | 20 | — | 2007–2020 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 42 | 30 | — | 2016–2018 |
| [Total Support Services](/driller/total-support-services.md) | 34 | 20 | — | 2002–2015 |
| [MagnaCore Drilling & Environmental Services](/driller/magnacore-drilling-environmental-services.md) | 27 | 14 | — | 2004–2010 |
| [W.E.S.T. Drilling](/driller/w-e-s-t-drilling.md) | 20 | 25 | — | 2003–2005 |
| [SCI](/driller/sci.md) | 16 | 20 | — | 2003–2011 |
| [ETTL Engineers & Consultants Inc.](/driller/ettl-engineers-consultants-inc.md) | 14 | 25 | — | 2003–2015 |
| [Miller Drilling Co.](/driller/miller-drilling-co.md) | 14 | 100 | 15 | 2009–2014 |
| [Apex Geoscience Inc.](/driller/apex-geoscience-inc.md) | 14 | 20 | — | 2004–2005 |
| [Environmental Logistics Company, LLC](/driller/environmental-logistics-company-llc.md) | 13 | 20 | — | 2018–2021 |
| [WEST Drilling](/driller/west-drilling.md) | 12 | 25 | — | 2015–2023 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 12 | 25 | — | 2015–2020 |
| [C. Miller Drilling](/driller/c-miller-drilling.md) | 11 | 212 | 22 | 2005–2016 |
| [WALKER HILL ENVIRONMENTAL INC](/driller/walker-hill-environmental-inc.md) | 10 | 29 | — | 2018–2019 |
| [Vista GeoScience](/driller/vista-geoscience.md) | 9 | 26 | — | 2017 |
| [RIOMAR DRILLING INC](/driller/riomar-drilling-inc.md) | 8 | 22 | — | 2014–2020 |
| [Groundwater Monitoring Inc.](/driller/groundwater-monitoring-inc.md) | 8 | 8 | — | 2005–2006 |
| [LandTec Engineers, LLC](/driller/landtec-engineers-llc.md) | 7 | 28 | — | 2005–2010 |
| [Eagle Remediation](/driller/eagle-remediation.md) | 6 | 25 | — | 2020–2023 |
| [GAULDEN WATER WELLS](/driller/gaulden-water-wells.md) | 5 | — | 8 | 2002–2008 |
| [dba Universal Drilling Services](/driller/dba-universal-drilling-services.md) | 5 | 25 | — | 2003–2005 |
| [W.E. Pender & Sons Inc](/driller/w-e-pender-sons-inc.md) | 4 | 100 | 14 | 2017–2022 |
| [Fugro](/driller/fugro.md) | 4 | 50 | — | 2020 |
| [Pacific West](/driller/pacific-west.md) | 3 | 30 | — | 2024 |
| [ETTL Engineers & Consulants Inc.](/driller/ettl-engineers-consulants-inc.md) | 3 | 20 | — | 2022 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 232 | 56.6% | 25 |
| Environmental Soil Boring | 120 | 29.3% | 15 |
| Domestic | 24 | 5.9% | 147 |
| Irrigation | 14 | 3.4% | 200 |
| Other | 6 | 1.5% | 29 |
| Closed-Loop Geothermal | 5 | 1.2% | 300 |
| Test Well | 4 | 1.0% | 66 |
| Stock | 3 | 0.7% | 110 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 158 | 20 | 19 |
| 2010s | 203 | 26 | 23 |
| 2020s | 49 | 25 | 11 |

### The deepest reports on file

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

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 203368 | 2009 | 403 | — | — | Irrigation |
| 227788 | 2010 | 362 | — | — | Irrigation |
| 266480 | 2011 | 355 | — | — | Domestic |
| 425928 | 2016 | 302 | — | 20 | Irrigation |
| 522583 | 2019 | 300 | — | — | Closed-Loop Geothermal |
| 522526 | 2017 | 300 | — | — | Closed-Loop Geothermal |
| 520925 | 2019 | 300 | — | — | Closed-Loop Geothermal |
| 431859 | 2016 | 260 | 30 | 10 | Domestic |
| 375959 | 2014 | 250 | — | — | Closed-Loop Geothermal |
| 375958 | 2014 | 250 | — | — | Closed-Loop Geothermal |

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 Lamar 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

- [Dickens](/county/dickens.md)
- [Marion](/county/marion.md)
- [Kinney](/county/kinney.md)
- [Sabine](/county/sabine.md)
- [Borden](/county/borden.md)
- [Trinity](/county/trinity.md)
- [Sterling](/county/sterling.md)
- [McMullen](/county/mcmullen.md)
- [Jeff Davis](/county/jeff-davis.md)
- [Oldham](/county/oldham.md)
- [Falls](/county/falls.md)
- [Stonewall](/county/stonewall.md)
- [Motley](/county/motley.md)

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

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