Texas well grid 18-12
A 7.5-minute quadrangle of the Texas state well grid, mostly in Grayson County. 306 reports, median depth 15 ft.
306Reports
15 ftMedian depth
30 ftWater at
10 gpmMedian yield
What you will drill through in grid 18-12
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Limestone 19, Topsoil 20, Concrete 18, Sandy Clay 11, Asphalt 14, Yellow Clay 11 |
| 25–50 ft | Saa 6, Sand 4, Shale And Rock 3, Dark Gray Shale 3, Limestone 2, Gray Shale 2 |
| 50–100 ft | Gray Rock 6, Gray Shale 3, Gray Clay 2, Lt Gray Limestone 3, Dark Gray Clay 3, Shale 2 |
| 100–200 ft | Sand 5, Gray Shale 5, Shale 3, Blue Shale 7, Gray Rock 6, Lime 3 |
| 200–300 ft | Sand 12, Shale 7, Gray Shale 7, Shale And Sand 7, Blue Shale 6, Gray Clay 2 |
| 300–500 ft | Sand 18, Shale 11, Shale And Sand 5, White Shale 3, Gray Shale 3, Shale And Rock 2 |
| 500–1000 ft | Shale 2, Sand And Shale 1, Sand 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Sunbelt Industrial Services | 47 | 11 | — | 2009–2023 |
| Environmental Logistics Company, LLC | 46 | 15 | — | 2020–2025 |
| WALKER HILL ENVIRONMENTAL INC | 36 | 58 | — | 2014–2023 |
| MagnaCore Drilling & Environmental Services | 34 | 15 | — | 2009–2012 |
| Roddy Qualls Environmental Drilling | 28 | 6 | — | 2016–2023 |
| Vortex Drilling, Inc. | 24 | 5 | — | 2016–2019 |
| A.L. Moser Drilling, Inc. | 13 | 380 | 10 | 2003–2019 |
| Total Support Services | 13 | 20 | — | 2005–2011 |
| XL Drilling, Inc. | 13 | 9 | — | 2007–2008 |
| FAULKNER & SON | 9 | 405 | 10 | 2015–2025 |
| Zavala Drilling, CO | 8 | 250 | — | 2012–2013 |
| Envirotech Drilling Services LLC | 4 | 15 | — | 2026 |
| Bassett Drilling | 4 | 395 | 15 | 2014–2023 |
| CoreCo USA | 4 | 20 | — | 2021 |
| Strata Core Drilling Co. | 4 | 20 | — | 2008–2010 |
| DIXIE DRILLING | 4 | 85 | — | 2003 |
| Faulkner and Son | 3 | 375 | 15 | 2007–2013 |
| Strata Core Services, LLC | 3 | 8 | — | 2011–2012 |
| Axis Drilling | 2 | 400 | 35 | 2020–2023 |
| RIOMAR DRILLING INC | 2 | 35 | — | 2013 |
| Erwin Water Well Drilling | 1 | 420 | — | 2025 |
| Cascade Drilling | 1 | 45 | — | 2019 |
| Subterra Environmental Services, LLC. | 1 | 25 | — | 2018 |
| RIOMAR DRILIING INC | 1 | 25 | — | 2013 |
| SOUTHERLAND WATER WELL | 1 | 250 | — | 2001 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 162 | 52.9% | 9 |
| Monitor | 93 | 30.4% | 25 |
| Domestic | 31 | 10.1% | 390 |
| Closed-Loop Geothermal | 9 | 2.9% | 250 |
| Test Well | 6 | 2.0% | 15 |
| Other | 4 | 1.3% | 50 |
| Irrigation | 1 | 0.3% | 365 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 50 | 20 | 80 |
| 2010s | 110 | 18 | 23 |
| 2020s | 146 | 15 | 153 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 528172 | 2019 | 610 | 420 | 10 | Domestic |
| 233760 | 2010 | 540 | 420 | 10 | Domestic |
| 695981 | 2025 | 505 | 400 | 8 | Domestic |
| 109599 | 2007 | 455 | 240 | 10 | Domestic |
| 683299 | 2024 | 432 | 350 | 7 | Domestic |
| 625609 | 2022 | 432 | 300 | 12 | Domestic |
| 346873 | 2013 | 430 | 360 | 7 | Domestic |
| 712538 | 2025 | 420 | — | — | Domestic |
| 605080 | 2022 | 414 | 320 | 15 | Domestic |
| 625335 | 2022 | 405 | 220 | 10 | 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 18-12?
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 Grayson County.