Texas well grid 65-15

A 7.5-minute quadrangle of the Texas state well grid, mostly in Harris County and Sabine County. 1,400 reports, median depth 36 ft.

1,400Reports

36 ftMedian depth

108 ftWater at

20 gpmMedian yield

What you will drill through in grid 65-15

Logged in state well grid 65-15, by depth. The figure is how many wells hit it.
Depth, ft	What was logged there
0–25 ft	Clay 325, Sand 152, Concrete 89, Silty Clay 41, Clay, Gray 28, Asphalt 31
25–50 ft	Sand 127, Clay 134, Silty Clay 19, Clay, Lt. Gray 22, Clay, Reddish Brown 13, Sandy Clay, Lt. Gray 8
50–100 ft	Clay 178, Sand 146, Clay, Red 13, Clay, Reddish Brown 7, Silty Clay 7, Sand, Reddish Brown 6
100–200 ft	Sand 265, Clay 232, Blue Clay 13, Clay, Sand 5, Sand, Clay 4, Sand-Tan-.010-.012 3
200–300 ft	Sand 233, Clay 142, Blue Clay 7, Sand .008 7, Red Clay 3, Shale 3
300–500 ft	Sand 53, Clay 32, Rock & Sand 1, Rock 1, Caliche 1, Gray Sand (.006-.008) 2
500–1000 ft	Sand 9, Clay 8, Clay Hard Red 1, Sand/Clay 1, Sand/Gravel 1, Sand, Red/Gray Clay 1
1000–5000 ft	Sand 3, Clay 2, Clay Hard 1, Clay Hard Blue 1, Sand Fine Blue 1, Sand, Red/White Clay 1

Who drills here

Licensed firms in state well grid 65-15, busiest first.
Firm of record	Wells	Median depth, ft	Median yield, gpm	Years
BEST DRILLING SERVICES, INC.	380	34	10	2004–2025
Mathers Environmental Drilling Inc.	127	25	—	2002–2025
Tolers Water Well Service	125	240	12	2003–2025
Envirotech Drilling Services LLC	118	25	—	2012–2026
Fugro Geosciences, Inc.	50	30	—	2002–2005
Hydrogeologic/Environmental Testing	42	58	—	2009–2010
Vortex Drilling, Inc.	41	10	—	2007–2017
Scott Drilling Inc.	37	260	45	2002–2024
Alpine Field Services	35	20	—	2004–2016
APOLLO Environmental Strategies, Inc.	33	25	—	2001–2010
Gainco, Inc.	30	37	3	2010–2014
Advanced Drilling Systems, Inc.	28	20	—	2001–2025
Bussell & Sons LLC	15	342	75	2004–2024
Sunbelt Industrial Services	15	77	—	2013
A & L Pump & Well Service	13	255	10	2003–2025
Soltek LLC	13	20	—	2015–2023
Alliance Maintenance & Sevices, Inc.	12	—	—	2009
Petra Environmental	12	16	—	2001–2002
O'Day Drilling Company, Inc.	11	501	80	2003–2025
Alliance Maintenance and Services	11	—	—	2010
Greak Water Well	10	280	70	2003–2022
City Survey	10	25	—	2006–2022
Wel-Mat Drilling LLP	10	25	—	2013–2018
Raymond Services, Inc.	10	55	6	2005–2016
Major Drilling Environmental	8	65	—	2013

What the wells are for

Purpose, and how deep each went.
Purpose	Wells	Share	Median depth, ft
Monitor	837	59.8%	30
Domestic	244	17.4%	240
Environmental Soil Boring	158	11.3%	12
Public Supply	50	3.6%	345
Test Well	42	3.0%	25
Industrial	23	1.6%	326
Other	19	1.4%	55
Injection	10	0.7%	38

By decade drilled.
Decade	Reports	Median depth, ft	Water at, ft
1900s	1	20	—
1970s	1	239	135
2000s	590	40	120
2010s	555	37	90
2020s	253	31	100

The deepest reports on file

Deepest reports in state well grid 65-15. Column one is the tracking number.
Report	Year	Depth, ft	Water at, ft	Yield, gpm	Purpose
269228	2011	2,220	120	10	Domestic
689447	2024	1,556	177	2,006	Public Supply
601046	2022	1,524	156	1,511	Public Supply
361908	2014	1,300	169	1,511	Public Supply
531847	2020	1,215	154	1,100	Public Supply
417080	2016	780	—	—	Test Well
142346	2008	612	150	60	Industrial
575059	2021	598	244	150	Public Supply
373626	2014	589	176	150	Public Supply
187477	2009	588	150	60	Industrial

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 65-15?

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, Sabine County.