⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Whitman County › Saint John (99171)

Saint John, WA (99171): well depth, water level & drilling cost

✓ 77 Ecology records · Whitman County

140 ftmedian well depth
100 ft–212 fttypical depth range
53 ftmedian static water level
38 gpmmedian yield (12 tests)

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How deep are wells in and around Saint John (99171), Washington?

The median drilled well depth in and around Saint John (99171) is 140 ft, based on 76 wells with recorded depths in the state Ecology database. Half fall between 100 ft and 212 ft; 90% are shallower than 355 ft.

How much does it cost to drill a well in and around Saint John (99171)?

Applying published per-foot rates to the local median depth of 140 ft: drilling and casing alone typically runs $3,500–$9,100; a complete system including pump, pressure tank, and hookup typically runs $8,400–$14,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Saint John (99171)?

The median static water level is 53 ft below ground surface (middle half of wells: 12 ft–83 ft), from 9 measurements.

Drilled depth distribution

0–50 ft 0 50–100 ft 16 100–150 ft 26 150–200 ft 11 200–300 ft 12 300–400 ft 6 400–600 ft 5 600+ ft 0
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Part of Whitman County well records.

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions 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.