Texas well grid 66-14
A 7.5-minute quadrangle of the Texas state well grid, mostly in Austin County and Colorado County. 293 reports, median depth 200 ft.
293Reports
200 ftMedian depth
69 ftWater at
55 gpmMedian yield
What you will drill through in grid 66-14
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 70, Sand 59, Top Soil 47, Topsoil 42, Sandy Top Soil 34, Red Clay 20 |
| 25–50 ft | Sand 74, Clay 29, White Clay 21, Red Clay 7, Brown + White Clay 5, Tan Clay 5 |
| 50–100 ft | Sand 95, Clay 45, White Clay 28, Tan Clay 10, Red Clay 7, Brown & White Clay 6 |
| 100–200 ft | Sand 133, Clay 56, White Clay 36, Rock 21, Red Clay 14, Tan Clay 12 |
| 200–300 ft | Sand 31, Clay 21, Tan Clay 8, Rock 7, Sand & Rock 5, Shale 4 |
| 300–500 ft | Clay 8, Sand & Rock 7, Sand 7, Tan & White Clay 2, Tan Clay 3, Clay & Rock 3 |
| 500–1000 ft | Sand 6, Shale 3, Clay 3, Tan & White Clay 2, Sand & Rock 2, Sand & Clay Mix 1 |
Who drills here
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 246 | 84.0% | 200 |
| Stock | 19 | 6.5% | 240 |
| Irrigation | 16 | 5.5% | 450 |
| Monitor | 6 | 2.0% | 20 |
| Public Supply | 2 | 0.7% | 1,010 |
| Rig Supply | 2 | 0.7% | 530 |
| Other | 1 | 0.3% | 200 |
| Industrial | 1 | 0.3% | 650 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 92 | 182 | 70 |
| 2010s | 106 | 205 | 65 |
| 2020s | 95 | 205 | 70 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 489410 | 2018 | 1,010 | 184 | 500 | Public Supply |
| 729764 | 2026 | 705 | 115 | 250 | Stock |
| 729763 | 2026 | 705 | 145 | 300 | Stock |
| 628021 | 2022 | 700 | 104 | 200 | Irrigation |
| 576271 | 2021 | 700 | 90 | 200 | Irrigation |
| 729758 | 2026 | 685 | 166 | 300 | Stock |
| 325617 | 2012 | 650 | 130 | 140 | Industrial |
| 369878 | 2014 | 590 | 90 | 85 | Irrigation |
| 380158 | 2014 | 530 | 50 | 80 | Rig Supply |
| 411002 | 2015 | 510 | 85 | 130 | 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 66-14?
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, Colorado County, Harris County, Waller County.