Texas Water Well Reports › Harrison County
Harrison County, Texas: well depth, water level & drilling cost
✓ 3,002 TDLR SDR records · verified 2026-08-26
How deep are wells in Harrison County, Texas?
The median drilled well depth in Harrison County is 320 ft, based on 3,002 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 232 ft and 402 ft; 90% are shallower than 480 ft. Wells drilled since 2016 have a median depth of 300 ft.
How much does it cost to drill a well in Harrison County?
Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Harrison County?
The median static water level is 80 ft below ground surface (middle half of wells: 50 ft–128 ft), from 2,624 measurements.
How much water do wells in Harrison County produce?
The median tested yield is 55 gpm (middle half: 30 gpm–65 gpm), from 2,768 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Harrison County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| Fuller Water Well Service | 197 |
| LTW Services, LP | 161 |
| Fas-Line Services Inc. | 103 |
| C. Miller Drilling | 61 |
| Pinnergy LTD | 48 |
| Allstar Water Well Service | 38 |
| Hughes Water Well | 31 |
| KWS | 26 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Marshall (75670) — 403 wells, median 340 ft
- Hallsville (75650) — 395 wells, median 380 ft
- Marshall (75672) — 246 wells, median 300 ft
- Waskom (75692) — 135 wells, median 195 ft
- Karnack (75661) — 86 wells, median 221 ft
- Longview (75602) — 78 wells, median 410 ft
Method: medians computed from TDLR SDR records (water-supply wells only (domestic, irrigation, stock, public supply, industrial) — monitoring, environmental borings, test holes, injection and geothermal excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.