⟁ Texas Water Well Reports field records · 2026 survey

Texas Water Well Reports › Gillespie County › Harper (78631)

Harper, TX (78631): well depth, water level & drilling cost

✓ 789 TDLR SDR records · Gillespie County

280 ftmedian well depth
220 ft–335 fttypical depth range
160 ftmedian static water level
11 gpmmedian yield (695 tests)

How deep are wells in Harper (78631), Texas?

The median drilled well depth in Harper (78631) is 280 ft, based on 789 wells with recorded depths in the state TDLR SDR database. Half fall between 220 ft and 335 ft; 90% are shallower than 512 ft.

How much does it cost to drill a well in Harper (78631)?

Applying published per-foot rates to the local median depth of 282 ft: drilling and casing alone typically runs $7,050–$18,330; a complete system including pump, pressure tank, and hookup typically runs $16,920–$28,200. Actual quotes depend on site access, geology, and casing requirements.

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 720 measurements.

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Drilled depth distribution

0–50 ft 1 50–100 ft 5 100–150 ft 31 150–200 ft 88 200–300 ft 326 300–400 ft 222 400–600 ft 64 600+ ft 52
Looking at a specific property in Harper (78631)?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

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Part of Gillespie County well records.

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.