Texas well grid 58-40
A 7.5-minute quadrangle of the Texas state well grid, mostly in Lee County and Milam County. 140 reports, median depth 540 ft.
140Reports
540 ftMedian depth
120 ftWater at
40 gpmMedian yield
What you will drill through in grid 58-40
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Sand 52, Clay 41, Top Soil 27, Sandy Clay 25, Red Clay 23, Topsoil 20 |
| 25–50 ft | Shale 15, Clay 10, Gray Shale 8, Sandy Shale 7, Rock 6, Sand 4 |
| 50–100 ft | Shale 19, Sandy Shale 18, Sand 16, Rock 9, Clay 7, Gray Shale 5 |
| 100–200 ft | Sandy Shale 38, Shale 31, Sand 31, Rock 20, Clay 6, Streaky Sand 6 |
| 200–300 ft | Shale 40, Sand 26, Rock 26, Sandy Shale 24, Clay 5, Gray Clay 3 |
| 300–500 ft | Sand 44, Shale 41, Sandy Shale 39, Rock 22, Streaky Sand 10, Clay 5 |
| 500–1000 ft | Shale 48, Sandy Shale 30, Sand 34, Rock 20, Streaky Sand 12, Sand (B) 7 |
| 1000–5000 ft | Shale 3, Sand & S-Shale 1, Clay 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Siegert Water Wells, Inc | 47 | 610 | 30 | 2003–2023 |
| Jimmy's Well Service | 21 | 420 | 40 | 2001–2026 |
| Brien Water Wells | 21 | 785 | 50 | 2004–2025 |
| RELIANT DRILLING | 16 | 520 | 40 | 2014–2025 |
| Weisinger Incorporated | 5 | 502 | 80 | 2014–2023 |
| Envirotech Drilling Services LLC | 3 | 45 | — | 2024–2025 |
| BROWN'S WATER WELL DRILLING, LLC | 3 | 705 | 40 | 2002–2016 |
| Siegert Water Well | 3 | 550 | 20 | 2004–2006 |
| Williams Water Wells LLC | 2 | 675 | — | 2020–2025 |
| J & S Water Wells | 2 | 430 | 60 | 2008–2010 |
| Brown's Water Well | 2 | 470 | 35 | 2006–2008 |
| sotex water well service | 1 | 855 | 40 | 2025 |
| Texas Southern Drilling | 1 | 305 | — | 2023 |
| Southern Waterwell | 1 | 295 | 40 | 2020 |
| Jackson Waterwell | 1 | 420 | 80 | 2018 |
| RELIANT DRILLING, LLC WILSON GLASS KENNETH GLASS | 1 | — | 30 | 2014 |
| BrienWater Wells | 1 | 200 | 45 | 2014 |
| Pinnergy, LTD | 1 | — | 140 | 2014 |
| J & S Water Wells - Tomas Salinas | 1 | — | 80 | 2011 |
| J & S Water Wells - Primo Trejo | 1 | — | 180 | 2010 |
| EnviroCore, Inc. | 1 | 15 | — | 2012 |
| Jimmys Well Service | 1 | — | — | 2010 |
| Motal Well Service | 1 | 500 | 30 | 2009 |
| Associated Drilling Inc | 1 | 520 | 15 | 2008 |
| Vortex Drilling, Inc. | 1 | 60 | — | 2006 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 114 | 81.4% | 610 |
| Stock | 9 | 6.4% | 300 |
| Monitor | 6 | 4.3% | 45 |
| Industrial | 3 | 2.1% | 1,200 |
| Rig Supply | 2 | 1.4% | 502 |
| Public Supply | 2 | 1.4% | 976 |
| Fracking Supply | 1 | 0.7% | — |
| Irrigation | 1 | 0.7% | — |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 45 | 402 | 122 |
| 2010s | 54 | 620 | 100 |
| 2020s | 41 | 640 | 155 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 712845 | 2025 | 1,780 | 272 | 50 | Monitor |
| 615192 | 2022 | 1,200 | 133 | 973 | Industrial |
| 209845 | 2008 | 1,100 | 122 | 70 | Test Well |
| 339966 | 2013 | 1,000 | 151 | 33 | Domestic |
| 428216 | 2016 | 980 | 208 | 35 | Domestic |
| 358079 | 2014 | 976 | 129 | 1,400 | Public Supply |
| 443512 | 2016 | 960 | 60 | 60 | Domestic |
| 399787 | 2015 | 960 | 103 | 30 | Domestic |
| 397287 | 2015 | 960 | 30 | 30 | Domestic |
| 670837 | 2024 | 950 | — | — | 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 58-40?
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.
This grid falls in Lee County, Milam County, Travis County.