Water wells in Somervell County, Texas
693 well reports on file. The median well here was taken to 480 ft and struck water at 309 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Somervell County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Surface 150, Glen Rose Lime 66, Paluxy Sand 57, Clay 55, Topsoil 55, Lime 53 |
| 25–50 ft | Glen Rose Lime 40, Shale 29, Gray Shale. 10, Limestone 9, Gray Clay, Shale, Limestone 8, Grayish White Limestone. 6 |
| 50–100 ft | Lime 26, Glen Rose Lime 26, Sandy Shale 25, Sand 15, Shale 17, Limestone 10 |
| 100–200 ft | Sandy Shale 40, Sand 42, Glen Rose Lime 19, Lime 16, Shale 15, 1St Trinity Sand 13 |
| 200–300 ft | Sandy Shale 77, Sand 64, 1St Trinity Sand 47, Red Bed 30, Red Clay 24, Shale 19 |
| 300–500 ft | Sand 140, Red Bed 111, Sandy Shale 93, 1St Trinity Sand 87, Yellow 79, Red Clay 62 |
| 500–1000 ft | Yellow 92, Red Bed 52, 2Nd Trinity Sand 59, Sand 40, Red Clay 30, Yellow Clay 21 |
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 Somervell County
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| POLLOCK WATER WELL DRILLING | 144 | 520 | 15 | 2003–2020 |
| mcpherson drilling | 69 | 360 | 12 | 2008–2026 |
| Associated Services | 68 | 437 | 15 | 2003–2012 |
| Double Diamond Water Well Service | 49 | 440 | 15 | 2001–2011 |
| Associated Well Services, Inc. | 48 | 500 | 50 | 2007–2025 |
| BENNETT WATER WELL DRILLING, INC. | 39 | 440 | 25 | 2003–2021 |
| POLLOCK WATER WELL DRILLING & SERVICE | 39 | 535 | 15 | 2002–2015 |
| Geoprojects International, Inc. | 39 | 63 | — | 2006–2007 |
| POLLOCK WATER WELL | 38 | 520 | 15 | 2015–2026 |
| Dowell Well Service | 25 | 460 | 30 | 2003–2024 |
| POLLOCK WATER WELL DRILLING & SVC INC | 13 | 600 | 15 | 2022–2026 |
| White Drilling Company, Inc. | 12 | 70 | — | 2006 |
| Subterra Environmental Services, LLC. | 8 | 10 | — | 2018 |
| Sunbelt Industrial Services | 6 | 12 | — | 2019–2023 |
| WEST Drilling | 6 | 15 | — | 2017–2021 |
| pj oilfield services | 6 | — | 12 | 2005–2006 |
| B & B CONSTRUCTION CO. | 6 | 25 | — | 2004–2005 |
| Strata Core Services, LLC | 5 | 12 | — | 2011 |
| Blue Sky Water Well Drilling | 5 | 575 | 100 | 2007 |
| Pollock Water Well Drilling & Serv. | 5 | 512 | 30 | 2004–2005 |
| Assoicated Services | 4 | 577 | 20 | 2005–2013 |
| Groundwater Monitoring Inc. | 4 | 137 | — | 2007 |
| Associated Services-Gary Aardal | 4 | 575 | 10 | 2004 |
| Moore's Water Well | 3 | 480 | 30 | 2025–2026 |
| Action Water Wells Trust | 3 | 714 | 10 | 2024 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 537 | 77.5% | 500 |
| Monitor | 79 | 11.4% | 25 |
| Stock | 17 | 2.5% | 518 |
| Environmental Soil Boring | 14 | 2.0% | 10 |
| Rig Supply | 14 | 2.0% | 575 |
| Irrigation | 12 | 1.7% | 500 |
| Public Supply | 9 | 1.3% | 477 |
| Industrial | 6 | 0.9% | 500 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 408 | 500 | 310 |
| 2010s | 173 | 460 | 300 |
| 2020s | 112 | 455 | 305 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 54428 | 2005 | 900 | 660 | 40 | Domestic |
| 444062 | 2016 | 875 | 620 | — | Domestic |
| 265940 | 2006 | 875 | — | 10 | Domestic |
| 724372 | 2026 | 860 | 606 | 15 | Domestic |
| 596467 | 2022 | 860 | 617 | 15 | Domestic |
| 398374 | 2015 | 860 | 625 | 15 | Domestic |
| 96842 | 2006 | 860 | 600 | 15 | Domestic |
| 60612 | 2005 | 847 | 600 | 25 | Domestic |
| 508213 | 2019 | 841 | 603 | — | Domestic |
| 474391 | 2018 | 840 | 602 | 15 | 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 Somervell 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.
Counties with a comparable number of reports
A sliding window, not a ranking. Every county.