⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Ferry County › Inchelium (99138)

Inchelium, WA (99138): well depth, water level & drilling cost

✓ 79 Ecology records · Ferry County

203 ftmedian well depth
120 ft–305 fttypical depth range
60 ftmedian static water level
6 gpmmedian yield (39 tests)

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How deep are wells in Inchelium (99138), Washington?

The median drilled well depth in Inchelium (99138) is 203 ft, based on 79 wells with recorded depths in the state Ecology database. Half fall between 120 ft and 305 ft; 90% are shallower than 420 ft.

How much does it cost to drill a well in Inchelium (99138)?

Applying published per-foot rates to the local median depth of 203 ft: drilling and casing alone typically runs $5,075–$13,195; a complete system including pump, pressure tank, and hookup typically runs $12,180–$20,300. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Inchelium (99138)?

The median static water level is 60 ft below ground surface (middle half of wells: 36 ft–95 ft), from 38 measurements.

Drilled depth distribution

0–50 ft 3 50–100 ft 13 100–150 ft 12 150–200 ft 8 200–300 ft 19 300–400 ft 14 400–600 ft 9 600+ ft 1
Looking at a specific property in Inchelium (99138)?

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Part of Ferry 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.