Arizona Well Data › Pinal County › San Tan Valley (85140)
San Tan Valley, AZ (85140): well depth, water level & drilling cost
✓ 989 ADWR records · Pinal County
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How deep are wells in and around San Tan Valley (85140), Arizona?
The median drilled well depth in and around San Tan Valley (85140) is 600 ft, based on 804 wells with recorded depths in the state ADWR database. Half fall between 500 ft and 766 ft; 90% are shallower than 1,000 ft.
How much does it cost to drill a well in and around San Tan Valley (85140)?
Applying published per-foot rates to the local median depth of 600 ft: drilling and casing alone typically runs $15,000–$39,000; a complete system including pump, pressure tank, and hookup typically runs $36,000–$60,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in and around San Tan Valley (85140)?
The median static water level is 380 ft below ground surface (middle half of wells: 280 ft–440 ft), from 726 measurements.
Drilled depth distribution
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Part of Pinal County well records.
Method: medians computed from ADWR records (ADWR registered wells, excluding the 51,744 registrations the department has cancelled; 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.