Texas Water Well Reports › Mcmullen County
Mcmullen County, Texas: well depth, water level & drilling cost
✓ 247 TDLR SDR records · verified 2026-09-22
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How deep are wells in Mcmullen County, Texas?
The median drilled well depth in Mcmullen County is 3,816 ft, based on 204 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 475 ft and 4,220 ft; 90% are shallower than 4,696 ft. Wells drilled since 2016 have a median depth of 3,185 ft.
How much does it cost to drill a well in Mcmullen County?
Applying published per-foot rates to the local median depth of 3,816 ft: drilling and casing alone typically runs $95,400–$248,040; a complete system including pump, pressure tank, and hookup typically runs $228,960–$381,600. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Mcmullen County?
The median static water level is 140 ft below ground surface (middle half of wells: 81 ft–215 ft), from 219 measurements.
How much water do wells in Mcmullen County produce?
The median tested yield is 300 gpm (middle half: 38 gpm–500 gpm), from 220 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Mcmullen County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| Bull's Eye Services, LLC | 14 |
| Moy's Water Well Drilling & Services of Texas | 8 |
| James Pawlik Water Well Service, Inc. | 6 |
| PAWLIK & SON W.S. | 6 |
| BULLS EYE SERVICES LLC | 5 |
| Water Well Services | 4 |
| Moy's Water Well Services | 3 |
| Thomas Moy and Sons Water Well Drilling Inc. | 2 |
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Well records by ZIP code in Mcmullen County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Tilden (78072) — 122 wells, median 4,025 ft
- Calliham (78007) — 55 wells, median 615 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.