Texas well grid 66-05
A 7.5-minute quadrangle of the Texas state well grid, mostly in Austin County and Harris County. 506 reports, median depth 203 ft.
506Reports
203 ftMedian depth
97 ftWater at
35 gpmMedian yield
What you will drill through in grid 66-05
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 127, Sand 89, Shale 51, Top Soil 49, Sandy Top Soil 43, Black Land 28 |
| 25–50 ft | Sand 27, Clay 22, Tan Clay 16, Brown + Gray Clay + Rock Mix 12, Fine Brown Sand Rock + Sand 8, Clay & Sand Rock Layers 7 |
| 50–100 ft | Sand 50, Brown + Gray Clay 26, Sand & Sandrock Layers 20, Clay & Sandrock Layers 20, Clay 20, Shale 17 |
| 100–200 ft | Sand 107, Clay 59, Shale 53, Clay & Sandrock Layers 23, Sand & Sandrock Layers 20, Brown + Gray Clay 25 |
| 200–300 ft | Sand 46, Clay 38, Shale 32, Clay & Sand Rock Layers 8, Rock 7, Tan Clay 7 |
| 300–500 ft | Sand 15, Clay 11, Shale 11, Brown + Gray Clay 5, Sand & Rock 3, Sand And Rock Stks 1 |
| 500–1000 ft | Hard Clay & Rock 1, Solid Rock 1, Hard Clay 1, Hard Shale & Clay 1, Hard Shale & Rock 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 362 | 71.5% | 200 |
| Environmental Soil Boring | 52 | 10.3% | 25 |
| Monitor | 28 | 5.5% | 25 |
| Irrigation | 21 | 4.2% | 300 |
| Stock | 17 | 3.4% | 240 |
| Rig Supply | 12 | 2.4% | 285 |
| Industrial | 7 | 1.4% | 410 |
| Public Supply | 3 | 0.6% | 345 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 167 | 180 | 84 |
| 2010s | 215 | 210 | 105 |
| 2020s | 124 | 210 | 102 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 244357 | 2007 | 870 | — | — | Test Well |
| 410989 | 2015 | 510 | 200 | 120 | Irrigation |
| 395122 | 2015 | 510 | 160 | 130 | Irrigation |
| 546991 | 2020 | 470 | 180 | 50 | Domestic |
| 575365 | 2021 | 450 | 225 | 35 | Other |
| 424397 | 2016 | 450 | 148 | 60 | Domestic |
| 379366 | 2014 | 450 | 90 | 60 | Domestic |
| 332727 | 2005 | 430 | 281 | 154 | Public Supply |
| 261791 | 2011 | 420 | 156 | 38 | Domestic |
| 261790 | 2011 | 420 | 156 | 38 | 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 66-05?
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 Austin County, Harris County.