Texas well grid 66-07
A 7.5-minute quadrangle of the Texas state well grid, mostly in Austin County and Waller County. 287 reports, median depth 205 ft.
287Reports
205 ftMedian depth
56 ftWater at
50 gpmMedian yield
What you will drill through in grid 66-07
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 92, Sand 49, Top Soil 30, Topsoil 25, Shale 24, Sandy Top Soil 19 |
| 25–50 ft | Sand 45, Clay 17, White Clay 9, Sand/Rock 6, Sand & Gravel 5, White Sand 5 |
| 50–100 ft | Sand 50, Clay 41, Clay/Rock 11, Shale 10, Sand & Sandrock Layers 8, Clay & Sandrock Layers 8 |
| 100–200 ft | Sand 81, Clay 48, Shale 21, Rock 18, Tan Clay 9, Sand & Rock Layers 11 |
| 200–300 ft | Sand 35, Clay 30, Shale 9, Rock 6, Sand & Rock 5, Fine Brown Sand And Rock 2 |
| 300–500 ft | Clay 14, Sand 13, Sand And Rock 2, Shale 2, Clay & Shale 2, Shale & Clay 1 |
| 500–1000 ft | Sand 3, Clay 4, Shale 2, Clay Mixed With Sand 1, Shale & Clay 1, Clay & Rock 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 221 | 77.0% | 215 |
| Industrial | 17 | 5.9% | 430 |
| Irrigation | 13 | 4.5% | 245 |
| Monitor | 13 | 4.5% | 50 |
| Stock | 11 | 3.8% | 180 |
| Environmental Soil Boring | 8 | 2.8% | 35 |
| Test Well | 1 | 0.3% | 20 |
| Public Supply | 1 | 0.3% | 730 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 92 | 210 | 53 |
| 2010s | 111 | 220 | 60 |
| 2020s | 84 | 200 | 54 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 536692 | 2020 | 730 | 166 | 210 | Public Supply |
| 666724 | 2024 | 610 | 120 | 150 | Irrigation |
| 383457 | 2014 | 590 | 140 | 100 | Industrial |
| 430632 | 2016 | 550 | 162 | 20 | Domestic |
| 226949 | 2009 | 550 | 140 | 180 | Industrial |
| 728127 | 2026 | 540 | 168 | 50 | Domestic |
| 138994 | 2007 | 520 | 130 | 45 | Domestic |
| 641048 | 2023 | 510 | 158 | 40 | Domestic |
| 364191 | 2014 | 470 | 70 | 200 | Industrial |
| 164267 | 2008 | 470 | 150 | 30 | 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 66-07?
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, Waller County, Grimes County, Lee County.