Texas well grid 65-21
A 7.5-minute quadrangle of the Texas state well grid, mostly in Harris County and Liberty County. 3,053 reports, median depth 30 ft.
3,053Reports
30 ftMedian depth
18 ftWater at
50 gpmMedian yield
What you will drill through in grid 65-21
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Concrete 366, Clay 197, Asphalt 220, No Recovery 111, Silty Clay, Gray 113, Sand 89 |
| 25–50 ft | Clay 88, Sand 98, No Recovery 62, Sandy Clay, Lt. Gray 39, Clay, Reddish Brown 35, Sand, Lt. Gray 38 |
| 50–100 ft | Clay, Reddish Brown 26, Clay 21, Sand 18, Clay, Red 23, Red Clay 10, No Recovery 4 |
| 100–200 ft | Clay 16, Sand 17, Red Clay 6, Sand-Tan-.006-.008 5, Clay-Red 3, .006-.008 Tan Sand 2 |
| 200–300 ft | Sand 22, Clay 20, Red Clay 7, Clay-Red 4, Tan Sand (.006-.008) 3, Sand-Tan-.006-.008 Sand-Tan-.010-.012 3 |
| 300–500 ft | Sand 19, Clay 13, Sand-White-.006-.008 5, Red Clay 3, Clay-Red Clay-Blue 3, Clay-Red 3 |
| 500–1000 ft | Clay 3, Sand 3, Clay,Sand 1, Sand,Clay 1, Fine Sand 1, Clay-Red 1 |
| 1000–5000 ft | Sand,Clay 1, Sand 1, Clay,Sand 1, Clay 2, Sand,Clay,Gravel 1, Gravel,Clay 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 2,119 | 69.4% | 30 |
| Environmental Soil Boring | 451 | 14.8% | 18 |
| Injection | 182 | 6.0% | 26 |
| Test Well | 122 | 4.0% | 30 |
| De-watering | 63 | 2.1% | 44 |
| Closed-Loop Geothermal | 38 | 1.2% | 300 |
| Other | 31 | 1.0% | 25 |
| Irrigation | 17 | 0.6% | 420 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1980s | 1 | 200 | — |
| 1990s | 1 | 250 | — |
| 2000s | 1,112 | 30 | 15 |
| 2010s | 1,363 | 31 | 18 |
| 2020s | 576 | 26 | 20 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 202419 | 2009 | 1,600 | 236 | 2,023 | Industrial |
| 671053 | 2024 | 626 | 230 | 400 | Industrial |
| 222666 | 2010 | 564 | 190 | — | Industrial |
| 204282 | 2008 | 541 | 187 | 550 | Domestic |
| 145996 | 2008 | 515 | 195 | 100 | Domestic |
| 112824 | 2007 | 510 | 195 | 90 | Domestic |
| 521330 | 2019 | 458 | 194 | 120 | Irrigation |
| 51217 | 2004 | 456 | 190 | 70 | Irrigation |
| 633992 | 2023 | 440 | 180 | 80 | Irrigation |
| 633991 | 2023 | 440 | 185 | 100 | Irrigation |
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 65-21?
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 Harris County, Liberty County, Houston County, Montgomery County, Caldwell County.