Texas well grid 66-11
A 7.5-minute quadrangle of the Texas state well grid, mostly in Colorado County and Fayette County. 245 reports, median depth 200 ft.
245Reports
200 ftMedian depth
85 ftWater at
20 gpmMedian yield
What you will drill through in grid 66-11
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 28, Topsoil 32, Top Soil 29, Red Clay 21, Sand 21, Yellow Clay 19 |
| 25–50 ft | Sand 21, Rock 14, Clay 9, Tan Clay 11, Sand & Rock 6, Sand & Gravel 5 |
| 50–100 ft | Sand 39, Tan Clay 15, Clay 12, Rock 11, Blue Clay 11, White Clay 7 |
| 100–200 ft | Sand 58, Blue Clay 19, Rock 16, Clay 16, Tan Clay 15, Shale 11 |
| 200–300 ft | Sand 23, Rock 14, Shale 12, Mc Shale 10, Clay 10, Blue Clay 8 |
| 300–500 ft | Rock 9, Shale 9, Sand 6, Sand & Rock Streaks 3, Clay 3, Clay & Rock 3 |
| 500–1000 ft | Clay 6, Shale 4, Sand 7, Sandy Shale 3, Rock Streaks 1, White Shale 1 |
| 1000–5000 ft | Shale 1, Sand 1, Sandy 1, Shale W/Scattered Sand 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Neuendorff's Water Well Svc., Inc. | 48 | 200 | 25 | 2003–2014 |
| Neuendorff's Water Well Service, Inc. | 35 | 220 | 23 | 2014–2026 |
| Envirotech Drilling Services LLC | 19 | 10 | — | 2018–2026 |
| Skutca Water Well | 18 | 169 | 12 | 2001–2014 |
| J&S WATER WELLS | 12 | 690 | 100 | 2008–2024 |
| Busselman Water Wells, LLC | 9 | 115 | 25 | 2023–2026 |
| Maresh Drilling Co., Inc. | 9 | 240 | 15 | 2014–2026 |
| Texas Southern Drilling | 9 | 225 | 25 | 2022–2024 |
| Jackson Water Well | 7 | 200 | 10 | 2013–2024 |
| Cobra Water Well Drilling, LLC. | 5 | 200 | 21 | 2018–2025 |
| Diggs Drilling Co Inc | 5 | 195 | 20 | 2016 |
| Washington County Water Well Drilling | 5 | 160 | 8 | 2004–2009 |
| Rangnow Water Well Service | 4 | 230 | 35 | 2007–2009 |
| Stetson Water Well Drilling & Service | 4 | 65 | 12 | 2005 |
| WASHINGTON CO WATER WELL DRILLING | 3 | 270 | 20 | 2015–2021 |
| Vrana Well Service Inc. | 3 | 164 | 20 | 2015–2020 |
| Richter Well Drilling, Inc. | 3 | 420 | 30 | 2011–2016 |
| J D Diggs Drilling Co Inc | 3 | 370 | 50 | 2009–2014 |
| Fleck Water Well Drilling | 3 | 120 | 12 | 2008 |
| Vaughn Water Well Service, Inc. | 3 | — | 16 | 2008 |
| A.W. Flentge Service | 3 | 90 | 15 | 2005–2006 |
| Russell Drilling Co., Inc. | 2 | 1,406 | 60 | 2019–2021 |
| B&R Water Well Service, LLC | 2 | 90 | 15 | 2017 |
| Ball Drilling Company | 2 | 140 | 16 | 2012 |
| Fleck Water Well Drlg | 2 | 65 | 15 | 2011 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 179 | 73.1% | 204 |
| Environmental Soil Boring | 19 | 7.8% | 10 |
| Stock | 19 | 7.8% | 160 |
| Irrigation | 10 | 4.1% | 346 |
| Rig Supply | 7 | 2.9% | 690 |
| Public Supply | 5 | 2.0% | 740 |
| Other | 4 | 1.6% | 400 |
| Industrial | 2 | 0.8% | 111 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 80 | 175 | 68 |
| 2010s | 96 | 205 | 87 |
| 2020s | 69 | 200 | 91 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 530823 | 2019 | 1,406 | — | — | Public Supply |
| 137588 | 2008 | 856 | 39 | 50 | Public Supply |
| 427698 | 2016 | 850 | 90 | 80 | Domestic |
| 676283 | 2024 | 830 | 75 | 150 | Rig Supply |
| 276620 | 2011 | 812 | 102 | 100 | Domestic |
| 606989 | 2022 | 790 | 10 | 150 | Rig Supply |
| 402050 | 2015 | 780 | — | 100 | Irrigation |
| 577729 | 2021 | 740 | 156 | 60 | Public Supply |
| 478193 | 2018 | 715 | 161 | 25 | Domestic |
| 669101 | 2024 | 710 | 155 | 130 | Rig Supply |
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 66-11?
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 Colorado County, Fayette County, Austin County, Jackson County.