Texas well grid 83-21
A 7.5-minute quadrangle of the Texas state well grid, mostly in Nueces County and San Patricio County. 766 reports, median depth 20 ft.
766Reports
20 ftMedian depth
12 ftWater at
40 gpmMedian yield
What you will drill through in grid 83-21
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 106, Asphalt 42, Clay Drk Gray/Lt Gray/Brown 29, Concrete Base 28, Sand 25, Concrete 25 |
| 25–50 ft | Clay 25, Sand 23, Broken Sand 9, Sandy Clay 6, Clayey Sand 4, Silty Sand; Tan 4 |
| 50–100 ft | Sand 60, Clay 38, Broken Sand 6, Blue Clay 4, Caliche & Sand 4, Caliche 3 |
| 100–200 ft | Sand 80, Clay 78, Broken Sand 10, Red Clay 8, Caliche 4, Caliche And Sand 4 |
| 200–300 ft | Sand 17, Clay 14, Broken Sand 7, Red Clay 4, Sandy Caliche 2, Red Sand 2 |
| 300–500 ft | Sand 4, Shale 1, Clay 1, Tan Clay 1, Sand With Shale 1, Sady Shale 1 |
| 500–1000 ft | Sand And Shale 1, Shale 1, Clay 1, Sand 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Vortex Drilling, Inc. | 167 | 15 | — | 2006–2025 |
| EnviroCore, Inc. | 123 | 18 | — | 2004–2024 |
| MARTIN WATER WELLS | 82 | 205 | — | 2003–2026 |
| ECI | 51 | 22 | — | 2004–2007 |
| Gainco, Inc. | 42 | 20 | 2 | 2011–2022 |
| Mathers Environmental Drilling Inc. | 31 | 25 | — | 2007–2019 |
| Envirotech Drilling Services LLC | 30 | 20 | — | 2021–2025 |
| Vortex Drilling Partners, LP | 23 | 20 | — | 2019–2022 |
| Rock Engineering | 23 | 14 | — | 2011–2012 |
| Front Range Drilling, Inc. | 17 | 20 | — | 2012–2016 |
| ESN-South | 16 | 20 | — | 2004–2008 |
| Savage Excavation | 15 | 20 | — | 2024–2026 |
| Jedi Drilling | 14 | 40 | — | 2009 |
| Roddy Qualls Environmental Drilling | 12 | 20 | — | 2020–2022 |
| Alamo1 Drilling | 11 | 30 | — | 2025–2026 |
| Right Drill, LLC. | 11 | 12 | — | 2024 |
| BEST DRILLING SERVICES, INC. | 10 | 35 | — | 2021–2025 |
| Fugro Geosciences, Inc. | 8 | 18 | — | 2005 |
| Talon/LPE | 7 | 22 | — | 2022 |
| Mikes Drilling and Pump Service | 7 | 206 | 50 | 2016–2021 |
| Wel-Mat Drilling LLP | 5 | — | — | 2003–2010 |
| dba Universal Drilling Services | 5 | 25 | — | 2005 |
| Eagle Remediation | 4 | 20 | — | 2022 |
| JEDI | 4 | — | — | 2006 |
| Jones Environmental Drilling, Inc. | 4 | 35 | — | 2004–2006 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 361 | 47.1% | 20 |
| Environmental Soil Boring | 292 | 38.1% | 15 |
| Domestic | 71 | 9.3% | 204 |
| Test Well | 12 | 1.6% | 30 |
| Irrigation | 12 | 1.6% | 295 |
| Stock | 6 | 0.8% | 224 |
| Industrial | 6 | 0.8% | 222 |
| Injection | 3 | 0.4% | 35 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 292 | 20 | 12 |
| 2010s | 290 | 20 | 12 |
| 2020s | 184 | 20 | 15 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 34434 | 2003 | 581 | 35 | — | Domestic |
| 470772 | 2018 | 580 | 43 | 3 | Unknown |
| 170034 | 2009 | 370 | 25 | — | Domestic |
| 724158 | 2026 | 342 | — | — | Domestic |
| 271522 | 2011 | 340 | 5 | — | Irrigation |
| 255741 | 2005 | 340 | 29 | — | Domestic |
| 402817 | 2015 | 331 | 16 | 100 | Irrigation |
| 402583 | 2015 | 331 | 16 | 100 | Irrigation |
| 685664 | 2024 | 322 | 25 | — | Domestic |
| 376730 | 2014 | 320 | 14 | — | 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 83-21?
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 Nueces County, San Patricio County.