Texas well grid 66-13

A 7.5-minute quadrangle of the Texas state well grid, mostly in Colorado County and Austin County. 385 reports, median depth 204 ft.

385Reports

204 ftMedian depth

75 ftWater at

40 gpmMedian yield

What you will drill through in grid 66-13

Logged in state well grid 66-13, by depth. The figure is how many wells hit it.
Depth, ft	What was logged there
0–25 ft	Sand 93, Clay 46, Top Soil 47, Topsoil 46, Red Clay 43, Top-Soil 35
25–50 ft	Sand 89, Clay 23, White Clay 16, Red Clay 15, Yellow Clay 12, Fine Brown Sand 7
50–100 ft	Sand 127, Clay 40, White Clay 28, Red Clay 18, Tan Clay 13, Rock 12
100–200 ft	Sand 158, Clay 44, Rock 49, White Clay 27, Tan Clay 26, Red Clay 27
200–300 ft	Sand 34, Clay 23, Rock 19, Tan Clay 12, Shale 9, Sand & Rock 8
300–500 ft	Sand 12, Clay 9, Shale 6, Rock 5, Clay & Rock 4, Sand & Rock 3
500–1000 ft	Clay 1, Clay & Rock 1

Who drills here

Licensed firms in state well grid 66-13, busiest first.
Firm of record	Wells	Median depth, ft	Median yield, gpm	Years
Neuendorff's Water Well Svc., Inc.	54	175	41	2003–2014
Neuendorff's Water Well Service, Inc.	49	186	50	2015–2026
Skutca Water Well	46	164	30	2001–2021
A.W. Flentge Service	35	210	35	2002–2022
Leon Flentge Water Well Drilling and Service	25	230	55	2006–2013
WASHINGTON CO WATER WELL DRILLING	18	185	25	2014–2024
Texas Southern Drilling	16	250	40	2020–2024
J&S WATER WELLS	15	490	80	2004–2024
Leon Flentge Water Well Drilling	14	230	50	2014–2019
Busselman Water Wells, LLC	11	216	50	2024–2026
Ricky Bonds Water Wells	9	215	55	2009–2018
Main Stream Environmental	7	240	35	2021–2023
HEFLIN WATER WORKS	7	250	40	2010–2021
Austin County Water Well Service	7	210	30	2007–2011
Cobra Water Well Drilling, LLC.	6	245	90	2018–2024
Geophysical Drilling, Inc.	6	420	140	2004–2020
Austin County Water Well	6	190	50	2005–2006
Washington County Water Well Drilling	6	216	25	2005–2010
Flentge Water Well Drilling and Service	5	200	40	2005
TIM FRANKS WATER WELL SERVICE	4	245	35	2023–2025
Burleson Services, Inc.	3	280	90	2003–2005
Pomykal Drilling Co.	3	192	17	2002
Mesecke Water Well	2	200	—	2019
CHANDLER DRILLING INC	2	160	50	2020
Bussell & Sons LLC	2	437	350	2015

What the wells are for

Purpose, and how deep each went.
Purpose	Wells	Share	Median depth, ft
Domestic	329	85.5%	200
Irrigation	22	5.7%	305
Stock	19	4.9%	170
Rig Supply	8	2.1%	270
Other	3	0.8%	187
Public Supply	2	0.5%	437
Industrial	2	0.5%	490

By decade drilled.
Decade	Reports	Median depth, ft	Water at, ft
2000s	143	200	74
2010s	151	206	78
2020s	91	204	78

The deepest reports on file

Deepest reports in state well grid 66-13. Column one is the tracking number.
Report	Year	Depth, ft	Water at, ft	Yield, gpm	Purpose
166392	2004	550	180	120	Irrigation
434139	2016	530	170	80	Irrigation
434125	2016	510	180	120	Irrigation
326030	2012	510	160	70	Domestic
589499	2021	500	160	100	Stock
525133	2019	500	160	120	Stock
642787	2023	490	189	35	Domestic
159241	2006	490	180	80	Industrial
149121	2008	448	95	140	Irrigation
411579	2015	437	231	350	Public 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 66-13?

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, Austin County, Washington County.