Texas well grid 65-20
A 7.5-minute quadrangle of the Texas state well grid, mostly in Harris County and Fort Bend County. 1,695 reports, median depth 30 ft.
1,695Reports
30 ftMedian depth
23 ftWater at
50 gpmMedian yield
What you will drill through in grid 65-20
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Concrete 259, No Recovery 107, Clay 131, Asphalt 85, Silty Clay, Gray 50, Sand 47 |
| 25–50 ft | Sand 47, Clay 44, Clay, Red 31, No Recovery 24, Clay, Reddish Brown 24, Silty Clay, Lt. Gray 13 |
| 50–100 ft | Clay 39, Sand 38, Clay, Red 6, Clay-Red 6, Red Clay 6, Ft. Clay, Red Brown 4 |
| 100–200 ft | Sand 64, Clay 45, Red Clay 7, Clay-Red 7, Gray Sandy Clay 4, Shale 2 |
| 200–300 ft | Sand 69, Clay 41, Red Clay 6, Clay-Red 6, Shale 2, Sandy Gray Shale 3 |
| 300–500 ft | Sand 41, Clay 28, Rock 7, Shale 3, Red Clay 4, Sand .008 3 |
| 500–1000 ft | Sand 7, Clay 5, Clay (Gray) 1, Clay (Tan) 1, Clay (Light Gray) 1, Sandy Clay 1 |
| 1000–5000 ft | Sand 3, Clay (Gray) 2, Clay 2, Clay (Whitish Gray) 2, Clay (Tan) 1, Clay (White) 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 1,189 | 70.1% | 30 |
| Environmental Soil Boring | 271 | 16.0% | 15 |
| Domestic | 93 | 5.5% | 320 |
| Test Well | 56 | 3.3% | 30 |
| Other | 45 | 2.7% | 35 |
| Irrigation | 18 | 1.1% | 401 |
| Public Supply | 11 | 0.6% | 900 |
| Injection | 5 | 0.3% | 25 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1970s | 1 | 1,010 | — |
| 1990s | 1 | 46 | 50 |
| 2000s | 684 | 30 | 25 |
| 2010s | 672 | 30 | 18 |
| 2020s | 337 | 30 | 27 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 51737 | 2005 | 2,130 | 299 | 2,100 | Public Supply |
| 23793 | 2003 | 2,070 | 345 | — | Public Supply |
| 659789 | 2024 | 1,400 | 283 | 2,514 | Public Supply |
| 639077 | 1972 | 1,010 | — | 970 | Public Supply |
| 61024 | 2003 | 900 | 238 | 1,205 | Public Supply |
| 126031 | 2007 | 750 | 225 | 1,402 | Public Supply |
| 53974 | 2003 | 708 | 210 | 400 | Domestic |
| 13738 | 2002 | 580 | 60 | 30 | Domestic |
| 219530 | 2006 | 498 | 195 | 400 | Irrigation |
| 704837 | 2025 | 490 | 175 | — | Other |
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 65-20?
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, Fort Bend County, Brazoria County.