Texas well grid 87-40
A 7.5-minute quadrangle of the Texas state well grid, mostly in Hidalgo County. 102 reports, median depth 41 ft.
102Reports
41 ftMedian depth
30 ftWater at
50 gpmMedian yield
What you will drill through in grid 87-40
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 10, Clayey Sand; Tan 5, Soil Brown 9, Silt, Light Brn, Stiff 6, Silty Clay, Dk Brn, Stiff 8, Sample Not Extruded 4 |
| 25–50 ft | Clay 7, Sand-Brown 5, Clay, Silty, Sandy, Stiff, Tan And Brown, Moist, With Calcar 4, Sandy Brown 4, Caliche 3, Clay Red 2 |
| 50–100 ft | Sand 4, Sandy Clay Brown 3, Sandy/Clay 2, Clay 2, Sample Not Extruded 1, Sand Brown 2 |
| 100–200 ft | Sand 4, Clay 3, Sand Brown 4, Sandy/Clay 2, Sandy Clay 2, Sandy Clay Brown 2 |
| 200–300 ft | Sand 3, Clay 3, Clay Yellow 3, Shale 2, Sand With Clay 1, Sandy Clay Grey 1 |
| 300–500 ft | Sand 5, Clay 4, Sand Brown 3, Shale 2, Sandy Clay Brown 2, Sand/Clay 1 |
| 500–1000 ft | Sand 3, Clay 3, Clay With Sand 1, Sandy/Clay 2, Clay Yellow 2, Shale 2 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| H/ET | 31 | 34 | — | 2025 |
| Killinger's Water Well Drilling | 21 | 185 | 40 | 2006–2025 |
| Vortex Drilling Partners, LP | 18 | 34 | — | 2020 |
| Envirotech Drilling Services LLC | 15 | 40 | — | 2014–2018 |
| EnviroCore, Inc. | 6 | 25 | — | 2026 |
| ECI | 3 | 45 | — | 2005 |
| Mike-N-Sons All-Terrain Well & Pump Service | 1 | 200 | — | 2026 |
| BELL WATERWELL SERVICE | 1 | 654 | — | 2012 |
| PAGE WATERWELL DRILLING | 1 | 600 | 100 | 2010 |
| PAGE WATER WELL | 1 | 600 | 100 | 2010 |
| R. Molina Water Well Serv., Inc. | 1 | 880 | 60 | 2007 |
| Pursley Drilling Ltd. | 1 | 715 | 60 | 2005 |
| Harold Pursley Jr | 1 | 480 | — | 2003 |
| Enviro Core Inc. | 1 | 35 | — | 2003 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 74 | 72.5% | 34 |
| Stock | 12 | 11.8% | 480 |
| Irrigation | 9 | 8.8% | 72 |
| Domestic | 3 | 2.9% | 715 |
| Industrial | 2 | 2.0% | 670 |
| Rig Supply | 2 | 2.0% | 600 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 11 | 410 | 32 |
| 2010s | 30 | 55 | 27 |
| 2020s | 61 | 34 | 32 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 167345 | 2007 | 880 | 76 | 60 | Domestic |
| 153421 | 2005 | 715 | 32 | 60 | Domestic |
| 326680 | 2006 | 670 | 20 | 80 | Industrial |
| 276901 | 2012 | 654 | 40 | — | Irrigation |
| 257200 | 2011 | 600 | 28 | 60 | Irrigation |
| 256054 | 2010 | 600 | 27 | 100 | Rig Supply |
| 231368 | 2010 | 600 | 20 | 100 | Rig Supply |
| 690363 | 2025 | 560 | 60 | 50 | Stock |
| 575614 | 2021 | 550 | 32 | 50 | Stock |
| 250116 | 2011 | 505 | 43 | 60 | Stock |
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 87-40?
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 Hidalgo County.