⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Whitman County › ZIP 99163

ZIP 99163, Whitman County: well depth, water level & drilling cost

✓ 208 Ecology records · Whitman County

300 ftmedian well depth
200 ft–402 fttypical depth range
160 ftmedian static water level
25 gpmmedian yield (80 tests)

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How deep are wells in ZIP 99163, Washington?

The median drilled well depth in ZIP 99163 is 300 ft, based on 208 wells with recorded depths in the state Ecology database. Half fall between 200 ft and 402 ft; 90% are shallower than 497 ft.

How much does it cost to drill a well in ZIP 99163?

Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 99163?

The median static water level is 160 ft below ground surface (middle half of wells: 67 ft–290 ft), from 61 measurements.

Drilled depth distribution

0–50 ft 1 50–100 ft 7 100–150 ft 17 150–200 ft 25 200–300 ft 53 300–400 ft 45 400–600 ft 55 600+ ft 5
Looking at a specific property in ZIP 99163?

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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.