Texas well grid 65-12

A 7.5-minute quadrangle of the Texas state well grid, mostly in Harris County. 1,748 reports, median depth 30 ft.

1,748Reports

30 ftMedian depth

25 ftWater at

40 gpmMedian yield

What you will drill through in grid 65-12

Logged in state well grid 65-12, by depth. The figure is how many wells hit it.
Depth, ft	What was logged there
0–25 ft	Concrete 195, Clay 143, No Recovery 69, Sand 75, Asphalt 75, Sandy Clay 55
25–50 ft	Clay 51, Sand 52, Clay, Red 33, Clay, Reddish Brown 23, No Recovery 16, Fine Grained Sand, Lt. Gray 19
50–100 ft	Clay 52, Sand 33, Clay, Brown 9, Red Clay 7, Silty Clay, Brown 5, Clay, Red, Very Firm 5
100–200 ft	Sand 71, Clay 58, Sand, Clay 4, Red Clay 3, Gravel 3, Sand & Rock 2
200–300 ft	Sand 75, Clay 60, Rock 12, Clay-Red 5, Sand-Tan-.006-.008 4, Sand Rock 3
300–500 ft	Sand 45, Clay 31, Rock 11, Hard Shale 3, Clay-Red 4, Sand .008 3
500–1000 ft	Sand 5, Clay 3, Sand .006-.008 1, Clay Tan 1, Gravel, Red Clay 1, Gravel, Clay 1
1000–5000 ft	Sand 2, Brown/White Clay, Sand 1, Brown/White/Gray Clay 1, Brown/Blue Clay 1, Blue/Brown/White Clay 1, Blue Clay, Sand 1

Who drills here

Licensed firms in state well grid 65-12, busiest first.
Firm of record	Wells	Median depth, ft	Median yield, gpm	Years
BEST DRILLING SERVICES, INC.	411	30	—	2002–2026
Envirotech Drilling Services LLC	290	25	—	2012–2026
Mathers Environmental Drilling Inc.	242	25	—	2001–2026
Geothermal Drilling inc	132	300	—	2011–2016
Alpine Field Services	71	29	—	2003–2015
Advanced Drilling Systems, Inc.	53	25	—	2002–2022
Soltek LLC	33	26	—	2016–2019
Scott Drilling Inc.	32	305	40	2002–2024
Bussell & Sons LLC	32	307	25	2004–2022
Hydrogeologic/Environmental Testing	27	58	—	2008–2014
Vortex Drilling, Inc.	26	5	—	2009–2015
Wel-Mat Drilling LLP	24	64	—	2000–2017
Master Monitoring Services, Inc.	24	30	—	2005–2007
Raymond Services, Inc.	23	50	10	2002–2016
Vironex Inc.	22	30	—	2012
Fugro Geosciences, Inc.	18	75	—	2001–2002
City Survey	17	30	—	2009–2021
Van and Sons Drilling Service	17	40	—	2014–2017
Gainco, Inc.	16	24	—	2010–2013
APOLLO Environmental Strategies, Inc.	15	60	—	2005–2006
Gearen Drilling	14	30	0	2011–2014
Fugro USA Land, Inc.	11	45	—	2018–2019
Soiltech Services Inc.	9	25	—	2024–2026
Almeda Water Well Service	9	390	150	2003–2023
Tolunay-Wong Engineers,Inc	8	36	—	2015–2022

What the wells are for

Purpose, and how deep each went.
Purpose	Wells	Share	Median depth, ft
Monitor	1,087	62.2%	30
Environmental Soil Boring	207	11.8%	13
Closed-Loop Geothermal	133	7.6%	300
Domestic	89	5.1%	307
Injection	67	3.8%	41
Test Well	55	3.1%	25
Other	44	2.5%	30
De-watering	29	1.7%	61

By decade drilled.
Decade	Reports	Median depth, ft	Water at, ft
2000s	587	37	31
2010s	833	28	22
2020s	328	30	26

The deepest reports on file

Deepest reports in state well grid 65-12. Column one is the tracking number.
Report	Year	Depth, ft	Water at, ft	Yield, gpm	Purpose
585716	2021	1,400	288	1,705	Public Supply
532258	2019	1,300	305	1,804	Public Supply
497846	2018	1,000	329	940	Public Supply
456454	2017	785	330	120	Public Supply
336412	2011	592	263	150	Public Supply
170605	2004	480	199	250	Irrigation
163323	2008	480	200	100	Irrigation
478356	2017	460	180	120	Public Supply
461837	2017	460	180	120	Public Supply
452709	2017	460	180	120	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 65-12?

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 Harris County.