Texas Water Well Reports › Gillespie County › Harper (78631)
Harper, TX (78631): well depth, water level & drilling cost
✓ 791 TDLR SDR records · Gillespie County
How deep are wells in Harper (78631), Texas?
The median drilled well depth in Harper (78631) is 280 ft, based on 791 wells with recorded depths in the state TDLR SDR database. Half fall between 220 ft and 335 ft; 90% are shallower than 510 ft.
How much does it cost to drill a well in Harper (78631)?
Applying published per-foot rates to the local median depth of 280 ft: drilling and casing alone typically runs $7,000–$18,200; a complete system including pump, pressure tank, and hookup typically runs $16,800–$28,000. Actual quotes depend on site access, geology, and casing requirements.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Gillespie County — never sold elsewhere.
What is the static water level in Harper (78631)?
The median static water level is 160 ft below ground surface (middle half of wells: 107 ft–220 ft), from 722 measurements.
Pull every recorded well near a Harper (78631) address — $29
Drilled depth distribution
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
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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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.