Texas well grid 81-03
A 7.5-minute quadrangle of the Texas state well grid, mostly in Matagorda County and Brazoria County. 263 reports, median depth 420 ft.
263Reports
420 ftMedian depth
36 ftWater at
40 gpmMedian yield
What you will drill through in grid 81-03
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 122, Red Clay 29, Sand 19, Black Dirt 12, Surface Soil 11, Top Soil 10 |
| 25–50 ft | Sand 22, Clay 14, Red Clay 3, Sand And Clay 1, Gravel And Sand 1, Clay, Sand Streak At 55' 1 |
| 50–100 ft | Sand 87, Clay 34, Red Clay 15, Sand And Gravel 3, Coarse Sand 2, Clay Td 2 |
| 100–200 ft | Sand 112, Clay 83, Red Clay 14, Clay Td 12, Coarse Sand And Gravel 5, Clay Red 2 |
| 200–300 ft | Clay 93, Sand 64, Red Clay 9, Blue Clay 6, Clay Grey 2, Clay Td 3 |
| 300–500 ft | Sand 103, Clay 58, Clay Td 32, Red Clay 12, Blue Clay 8, Sandy Clay 5 |
| 500–1000 ft | Sand 49, Clay Td 30, Clay 21, Blue Clay 3, Red Clay 3, Grey Clay 1 |
Who drills here
| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| Finch Water Well | 56 | 410 | 60 | 2001–2026 |
| Goolsby Water Well Service LLC | 43 | 465 | 60 | 2015–2026 |
| RONNIE GOOLSBY WATER WELL SERVICE | 41 | 420 | 30 | 2004–2014 |
| RONNIE GOOLSBY WATER WELL | 38 | 425 | 35 | 2001–2014 |
| Finch Water Well Service | 28 | 660 | 60 | 2004–2009 |
| Brazoria Water Well | 9 | 240 | 40 | 2022–2026 |
| Wells Water Well Company | 8 | 445 | 20 | 2002–2005 |
| GOOLSBY WW | 6 | 445 | 60 | 2013 |
| 1st Choice Water Wells | 4 | 540 | 100 | 2017–2020 |
| Felder Water Well & Pump Service, LLC | 4 | 426 | 120 | 2004–2020 |
| Chaffin Water Wells | 3 | 240 | 150 | 2019–2022 |
| Gotcher Water Wells | 3 | 152 | 35 | 2011–2013 |
| GMG Water Well Drilling, LLC | 2 | 180 | — | 2025–2026 |
| Chaffin Water Well Service | 2 | 405 | 150 | 2020–2022 |
| AQUA WATER WELL CO. | 2 | 200 | 100 | 2010–2013 |
| ANCHOR WATER WELL | 2 | 375 | 60 | 2004–2006 |
| Goolsby Water Well | 2 | — | 400 | 2001 |
| GWR Windmills & Water Well Services, LLC | 1 | 140 | 100 | 2024 |
| AQUA STAR LLC | 1 | 140 | 100 | 2021 |
| MEZA WATER WELL SERVICE | 1 | 120 | — | 2017 |
| Felder Water Well & Pump Services, LLC. | 1 | 123 | 100 | 2009 |
| Finch Water Well nService | 1 | — | 25 | 2007 |
| Felder Water Well and Pump Svc. | 1 | 113 | 100 | 2003 |
| RONNIE GOOLSBY WATER WELL SEVICE | 1 | — | 35 | 2006 |
| ESN-South | 1 | 17 | — | 2006 |
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 217 | 82.5% | 440 |
| Stock | 38 | 14.4% | 150 |
| Irrigation | 3 | 1.1% | 160 |
| Other | 1 | 0.4% | 405 |
| Public Supply | 1 | 0.4% | — |
| Environmental Soil Boring | 1 | 0.4% | 17 |
| Rig Supply | 1 | 0.4% | — |
| Industrial | 1 | 0.4% | — |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 115 | 435 | 36 |
| 2010s | 87 | 420 | 32 |
| 2020s | 61 | 425 | 43 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 725176 | 2026 | 665 | — | 60 | Domestic |
| 628535 | 2022 | 665 | 52 | 15 | Domestic |
| 431347 | 2016 | 665 | 50 | 30 | Domestic |
| 131586 | 2007 | 660 | 47 | 80 | Domestic |
| 13552 | 2002 | 660 | 60 | 30 | Domestic |
| 581768 | 2021 | 645 | 50 | — | Domestic |
| 444849 | 2017 | 640 | 65 | — | Domestic |
| 383917 | 2014 | 635 | 54 | 60 | Domestic |
| 316433 | 2013 | 630 | 63 | 60 | Domestic |
| 586552 | 2021 | 595 | 75 | — | Domestic |
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 81-03?
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 Matagorda County, Brazoria County.