Water wells in Harrison County, Texas
4,175 well reports on file. The median well here was taken to 260 ft and struck water at 80 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Harrison County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 729, Shale 474, Sand 295, Red Clay 294, Top Soil 138, Grey Clay 93 |
| 25–50 ft | Shale 232, Sand 110, Gray Shale 77, Grey Clay 56, Clay 41, Rock 35 |
| 50–100 ft | Shale 422, Sand 304, Rock 99, Clay 73, Grey Clay 60, Gray Shale 50 |
| 100–200 ft | Shale 709, Sand 677, Rock 151, Shale Sand 112, Shale, Sand 95, Clay 107 |
| 200–300 ft | Sand 603, Shale 481, Rock 116, Clay 90, Shale Sand 74, Shale, Sand 65 |
| 300–500 ft | Sand 403, Shale 373, Rock 74, Clay 66, Sand Shale 56, Sand, Shale 47 |
| 500–1000 ft | Shale 33, Sand 21, Grey Clay 5, Rock 4, Gray Shale 3, Clay/Sand 2 |
| 1000–5000 ft | Shale Sand Lignite 1, Sand 1 |
The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.
Who drills in Harrison County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Rig Supply | 1,561 | 37.4% | 300 |
| Domestic | 1,057 | 25.3% | 330 |
| Monitor | 867 | 20.8% | 30 |
| Environmental Soil Boring | 143 | 3.4% | 15 |
| Fracking Supply | 137 | 3.3% | 220 |
| Irrigation | 117 | 2.8% | 422 |
| Industrial | 70 | 1.7% | 340 |
| De-watering | 58 | 1.4% | 40 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1990s | 1 | — | — |
| 2000s | 2,207 | 270 | 75 |
| 2010s | 1,280 | 240 | 84 |
| 2020s | 687 | 260 | 86 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 400315 | 2015 | 2,800 | 200 | 25 | Domestic |
| 213540 | 2009 | 900 | 164 | 7 | Test Well |
| 251795 | 2005 | 806 | 48 | 50 | Domestic |
| 98990 | 2006 | 800 | 100 | 150 | Public Supply |
| 58275 | 2005 | 750 | — | — | Domestic |
| 537568 | 2020 | 723 | — | 45 | Domestic |
| 2676 | 2001 | 702 | 218 | 20 | Domestic |
| 293534 | 2012 | 700 | — | — | Fracking Supply |
| 279493 | 2012 | 700 | 46 | 60 | Rig Supply |
| 357520 | 2014 | 682 | 412 | 18 | Irrigation |
Every figure on this site is a median, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.
Drilling a well in Harrison County?
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.
Counties with a comparable number of reports
A sliding window, not a ranking. Every county.